A mount for firearm assembly and adjustment includes a firearm engagement portion having a hollow body with at least one recess for receiving a firearm buffer tube therein, and a support member configured to be secured to a support.

A mount for firearm assembly and adjustment includes a firearm engagement portion having a hollow body with at least one recess for receiving a firearm buffer tube therein, and a support member configured to be secured to a support.

A clamping tool includes a strut having one end and defining a longitudinal axis. Arranged on the one end of the strut is a mount which includes a bushing that is arranged on the strut. The bushing includes recesses and a receptacle which interacts with the recesses so as to be rotatably mounted in the bushing. The bushing has an interior provided with at least one groove for receiving an O-ring which is sized to extend beyond the groove to inhibit a rotational mobility of the receptacle. A clamping device is received in the receptacle of the mount and configured to swing about an axis perpendicular to the longitudinal axis of the strut.

A tool positioning and holding mechanism includes a mounting frame, a feed member, a tool support, a positioning member, an elastic member, and a blocking member. The feed member is slidably mounted on the mounting frame. The tool support is fixed on the feed member and defines a receiving hole to receive the tool. The positioning member is pivotally coupled to the tool support and partially received in the tool support. The elastic member is located between the positioning member and the tool support. The blocking member is fixed on the mounting frame and includes a pushing portion configured to resist the positioning member. The feed member can move the positioning member to allow detachment of the positioning member from the pushing portion, and upon detachment of the positioning member, the positioning member is configured to rotate under an elastic force of the elastic member to position the tool.

A tool positioning and holding mechanism includes a mounting frame, a feed member, a tool support, a positioning member, an elastic member, and a blocking member. The feed member is slidably mounted on the mounting frame. The tool support is fixed on the feed member and defines a receiving hole to receive the tool. The positioning member is pivotally coupled to the tool support and partially received in the tool support. The elastic member is located between the positioning member and the tool support. The blocking member is fixed on the mounting frame and includes a pushing portion configured to resist the positioning member. The feed member can move the positioning member to allow detachment of the positioning member from the pushing portion, and upon detachment of the positioning member, the positioning member is configured to rotate under an elastic force of the elastic member to position the tool.

A method of manufacturing a shim and related systems and equipment. A mechanical tool inserted into a shim space defined between two or more components with the mechanical tool in a first configuration. The mechanical tool is free of measurement electronics. The mechanical tool, while in the shim space, is modified such that the mechanical tool assumes a second configuration to establish a plurality of model points corresponding to a boundary surface of the shim space. The mechanical tool is removed from the shim space while maintaining the mechanical tool in the second configuration. Using a measurement station distinct from the tool, the positions of the model points are electronically measured while the mechanical tool is both disposed outside of the shim space and in the second configuration. Machining instructions are generated based on the measured positions. A shim is fabricated based on the generated machining instructions.

A method of manufacturing a shim and related systems and equipment. A mechanical tool inserted into a shim space defined between two or more components with the mechanical tool in a first configuration. The mechanical tool is free of measurement electronics. The mechanical tool, while in the shim space, is modified such that the mechanical tool assumes a second configuration to establish a plurality of model points corresponding to a boundary surface of the shim space. The mechanical tool is removed from the shim space while maintaining the mechanical tool in the second configuration. Using a measurement station distinct from the tool, the positions of the model points are electronically measured while the mechanical tool is both disposed outside of the shim space and in the second configuration. Machining instructions are generated based on the measured positions. A shim is fabricated based on the generated machining instructions.

An attaching and detaching apparatus includes a main mounting plate to which a main mounting object is to be mounted, an attachment mounting plate to which an attachment mounting object is to be mounted, and a connecting member between the main mounting plate and the attachment mounting plate. A protrusion projecting toward the connecting member is formed on the main mounting plate. A hole into which the protrusion fits is formed on the connecting member. A first contact surface in the shape of a surface of revolution is formed on the protrusion. A second contact surface in the shape of a surface of revolution is formed on the inner surface of the hole. The first contact surface and the second contact surface are in contact with each other with the central axis of the protrusion coinciding with the central axis of the hole.

A lockable tool clamp includes two jaw members and a pin together installed on a mount to clamp a tool holder securely. The jaw members each have a connecting portion and a jaw tip. The two connecting portions are overlapped and connected to the mount through a shaft. The pin when installed on the mount is parallel to the shaft, and passes through the two jaw members at a location different from where the shaft passes through the two jaw members. When the pin is in its unlocking position, the jaw members are allowed to pivot with respect to each other, so that the tool holder can be withdrawn or replaced by pushing the jaw tips apart. When the pin is in its locking position, the jaw members are restricted from pivoting with respect to each other. At this time, the tool holder is clamped between the jaw tips securely.

A power device includes a power tool, a mounting plate, a mounting table, a positioning assembly, and a locking assembly. The positioning assembly includes a positioning piece. A positioning space is formed between the positioning piece and the mounting table. An end of the mounting plate is enabled to be inserted into the positioning space so that the mounting plate is pre-positioned. The locking assembly includes a movable piece and a locking piece. The movable piece includes a support position where the mounting plate is supported and an unlocked position where support for the mounting plate is released. The locking piece fixes at least the mounting plate to the mounting table.