The invention relates to the field of jewelry processing, in particular to a hole positioning device for jewelry processing, which includes a main body and an operating cavity provided in the main body. A support plate is slidably disposed in the operating cavity and is located in the operating cavity. A sliding plate below the support plate, a cylinder is fixedly arranged in the sliding plate, and a through hole is formed in the cylinder, and a drilling positioning device for jewelry processing provided by the present invention can realize the ordering of jewelry. Perforating, a circulating water cooling device is installed in the equipment, which can cool the jewelry during cutting, so as to prevent the drill bit from overheating to affect the cutting effect. At the same time, the fixing device set in the equipment can easily fix the jewelry, and it automatically locates when drilling. The efficiency is high, the equipment can collect the jewelry debris in the cooling liquid, avoid the loss of property, and facilitate the production and promotion.

A guide member includes a first diametrically directed side guide section and a second diametrically directed side guide section formed by bending a single member at a bent portion. The first diametrically directed side guide section guides predetermined portions of electric conductors on a diametrically directed side of a slot. Further, the second diametrically directed side guide section guides predetermined portions of the electric conductors on a diametrically directed side of another slot adjacent to the slot. The bent portion is supported by a supporting body.

A guide member includes a first diametrically directed side guide section and a second diametrically directed side guide section formed by bending a single member at a bent portion. The first diametrically directed side guide section guides predetermined portions of electric conductors on a diametrically directed side of a slot. Further, the second diametrically directed side guide section guides predetermined portions of the electric conductors on a diametrically directed side of another slot adjacent to the slot. The bent portion is supported by a supporting body.

A positioning and fixing apparatus that fixes a position of a stator core includes a plurality of positioners that are displaced so as to approach or separate from the stator core, by a positioner displacing unit. One of the positioners is an engager that engages with a first tab section being an engaging section. First, the engager engages with the first tab section, and then, pressers being the remainder of the positioners position a certain region of the stator core.

A positioning and fixing apparatus that fixes a position of a stator core includes a plurality of positioners that are displaced so as to approach or separate from the stator core, by a positioner displacing unit. One of the positioners is an engager that engages with a first tab section being an engaging section. First, the engager engages with the first tab section, and then, pressers being the remainder of the positioners position a certain region of the stator core.

An improved forged wheel trimming die, including a connecting rod, a lower die base lower plate, a bottom plate, a stripper guide pillar, a knockout rod, an ejector block, a lower die base stiffened plate, a lower die base upper plate, a lower die, a stripper plate, follow-up retainer plates, a shearing blade and a trimming rod. The improved forged wheel trimming die has the advantages that by adding two follow-up retainer plates to the stripper plate of the die, burrs of a forged wheel blank are constrained along the radial direction during the cutting, thereby avoiding breakage due to excessive deformation; in this way, the burrs can be protected from damage and knocked out successfully by the knockout rod after being cut off from the blank.

An improved forged wheel trimming die, including a connecting rod, a lower die base lower plate, a bottom plate, a stripper guide pillar, a knockout rod, an ejector block, a lower die base stiffened plate, a lower die base upper plate, a lower die, a stripper plate, follow-up retainer plates, a shearing blade and a trimming rod. The improved forged wheel trimming die has the advantages that by adding two follow-up retainer plates to the stripper plate of the die, burrs of a forged wheel blank are constrained along the radial direction during the cutting, thereby avoiding breakage due to excessive deformation; in this way, the burrs can be protected from damage and knocked out successfully by the knockout rod after being cut off from the blank.

A method for monitoring the position and assessing the correct position P.sub.i of a work slide (5) of a wedge drive tool (2) in a press (11), without a position sensor. The slide (5) of the wedge drive tool (2) is actuated from an end position (X.sub.E) back to the starting position (X.sub.A) of the slide (5) by a spring (10). The spring (10) is arranged in the wedge drive tool (2). The press (11) is opened from a lower press position to an upper press position while a slide bed (5B) of the wedge drive tool (2) is relieved. The position of the slide (5) is indirectly detected in that at least the restoring force of the spring (10) is detected and evaluated.

A seat slider device may include a lower rail attachable to a body of a vehicle; and an upper rail attachable to a lower portion of a seat and slidably engaging with the lower rail. The upper rail may include a lock pin movable along a short direction of the upper rail. The lower rail may include a plurality of first holes and a second hole. The first holes may be arranged along a longitudinal direction of the lower rail and configured to engage with the lock pin, and the second hole may be arranged with the first holes along the longitudinal direction of the lower rail. The second hole may be positioned at a position where the lock pin is incapable of engaging with the second hole or the second hole may have a size with which the lock pin is incapable of engaging.

A seat slider device may include a lower rail attachable to a body of a vehicle; and an upper rail attachable to a lower portion of a seat and slidably engaging with the lower rail. The upper rail may include a lock pin movable along a short direction of the upper rail. The lower rail may include a plurality of first holes and a second hole. The first holes may be arranged along a longitudinal direction of the lower rail and configured to engage with the lock pin, and the second hole may be arranged with the first holes along the longitudinal direction of the lower rail. The second hole may be positioned at a position where the lock pin is incapable of engaging with the second hole or the second hole may have a size with which the lock pin is incapable of engaging.