A sawing and drilling combined machining device includes a frame, a clamping mechanism, a sawing mechanism and a drilling mechanism; the frame includes a first end for mounting the clamping mechanism, a second end for mounting the drilling mechanism, and a third end for mounting the sawing mechanism, the first end and the second end are two opposite ends of the frame in a horizontal direction, and the third end is at an upper end or a lower end of the frame between the first end and the second end.

A system for supporting workpieces comprises a base and a plurality of support members (1), each support member (1) comprising a plate (11) and means for positioning the plate (11) in relation to the base. In at least some of the support members (1). The means for positioning the plate (11) comprise at least three controllably extendable members (13) arranged for determining the position and inclination of the plate (11) in relation to the base, thereby allowing for controlled positioning of the plate (11) in relation to the base and for controlled inclination of the plate (11).

A system for supporting workpieces comprises a base and a plurality of support members (1), each support member (1) comprising a plate (11) and means for positioning the plate (11) in relation to the base. In at least some of the support members (1). The means for positioning the plate (11) comprise at least three controllably extendable members (13) arranged for determining the position and inclination of the plate (11) in relation to the base, thereby allowing for controlled positioning of the plate (11) in relation to the base and for controlled inclination of the plate (11).

A fixing structure includes a base, a supporting assembly coupled to the base, a top cover rotationally coupled to the supporting assembly, and a limiting assembly arranged on the supporting assembly. The limiting assembly limits a rotation angle of the top cover relative to the base.

A fixing structure includes a base, a supporting assembly coupled to the base, a top cover rotationally coupled to the supporting assembly, and a limiting assembly arranged on the supporting assembly. The limiting assembly limits a rotation angle of the top cover relative to the base.

A grinding machine for grinding tools comprises a support unit configured to support a tool to be ground and provided with members suitable to incline it by certain angle with respect to a horizontal reference plane; and an operating unit that is mobile along a main axis of development of the grinding machine in order to move with respect to the support unit and comprises an abrasive element intended to abrade at least a portion to be ground of the tool. The grinding machine comprises an adjustment system to adjust the inclination of the support unit with respect to the reference plane. The adjustment means system is mobile parallel to the main axis of development to move to a predetermined distance from the reference plane.

A jig apparatus is used for assembling a trunk lid including an upper panel, an extension panel, and a lower panel. The jig apparatus may include: a jig frame; a first activation jig unit configured to align and fix the upper panel and the extension panel and installed at the jig frame in front and rear directions to be tilting-rotatable; and a second activation jig unit aligning and fixing the lower panel and installed at the jig frame to be linearly movable in the front and rear directions with respect to the first activation jig unit.

An apparatus for lifting and rotating a frame of a motor vehicle includes a rotisserie and a rotatably connected fixture that holds the motor vehicle frame during production. The fixture includes clamps extending from arms of the fixture and clamps extending from the front support for affixing the frame of the motor vehicle to the fixture. The fixture may further include a passive lock mechanism for engaging a side sill of the frame that includes a latch, a locking extension, a latch spring that holds the latch in engagement with the frame, and a pendulum that rotates relative to the fixture but remains oriented in a fixed location relative to horizontal. The latch may only be disengaged from the frame when the locking extension is aligned to be received by a slot in the pendulum when the fixture is rotated to the home location.

An apparatus for lifting and rotating a frame of a motor vehicle includes a rotisserie and a rotatably connected fixture that holds the motor vehicle frame during production. The fixture includes clamps extending from arms of the fixture and clamps extending from the front support for affixing the frame of the motor vehicle to the fixture. The fixture may further include a passive lock mechanism for engaging a side sill of the frame that includes a latch, a locking extension, a latch spring that holds the latch in engagement with the frame, and a pendulum that rotates relative to the fixture but remains oriented in a fixed location relative to horizontal. The latch may only be disengaged from the frame when the locking extension is aligned to be received by a slot in the pendulum when the fixture is rotated to the home location.

A carpentry block is provided to support a remote end of a board or work piece to be cut with a table saw or chop saw. The block has a triangular body which can be positioned on any base to define three different heights to support the remote work piece end. The block can also be positioned on the one end to define a fourth height for work piece support. An extension member can be added to the block to provide additional heights with the block, the outer end of the work piece is level with the saw table, thereby assuring an accurate cut of the work piece by the saw blade.