CN218426927U

CN218426927U - Bar clamping tool

Info

Publication number: CN218426927U
Application number: CN202121805999.9U
Authority: CN
Inventors: 董挺; 张海宁
Original assignee: Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Current assignee: Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2023-02-03
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a bar material clamping tool is provided with the mount on the base, and mount central authorities have the jack, have seted up a plurality of last slotted holes and the lower slotted hole that link up on the upper and lower tip wall of mount respectively, and a plurality of last jack catchs, lower jack catchs alternate respectively at last slotted hole, in the slotted hole down, go up the jack catchs, in the tip stretches into the jack catch down. The utility model discloses during centre gripping bar, a plurality of jack catchs of going up of both sides about the mount, lower jack catch carry out the centre gripping respectively at two different positions of bar and fix, and clamping stability is good, and the bar is difficult to take place to rock and harm the tool bit at rotatory in-process, guarantees the machining precision of bar, improves machining efficiency, reduces the product disability rate.

Description

Bar clamping tool

Technical Field

The utility model belongs to the technical field of bar processing appurtenance technique and specifically relates to a frock is held to bar clamp.

Background

PPS (polyphenylene sulfide) bar materials applied to a fuel cell are usually fixed by a caliper on a processing center during machining, the caliper is in point contact or line contact with the surface of the bar materials, the stressed area is small, and the surface of the bar materials is easily damaged; and the clamping is only carried out at a position of the bar usually, the clamping stability is poor, the bar swings easily in the rotating process, the machining tool bit is damaged, the machining precision is influenced, the machining efficiency is reduced, and the product rejection rate is high.

SUMMERY OF THE UTILITY MODEL

The applicant provides a bar centre gripping frock rational in infrastructure to the shortcoming that above-mentioned current bar centre gripping structure exists in the course of working, and bar surface is difficult for damaging, and the centre gripping is stable, guarantees the machining precision, improves machining efficiency, reduces the product disability rate.

The utility model discloses the technical scheme who adopts as follows:

a fixing frame is arranged on a base, a jack is arranged in the center of the fixing frame, a plurality of upper slotted holes and lower slotted holes which are communicated are respectively formed in the wall surfaces of the upper end portion and the lower end portion of the fixing frame, a plurality of upper clamping jaws and a plurality of lower clamping jaws are respectively inserted into the upper slotted holes and the lower slotted holes, and the inner end portions of the upper clamping jaws and the lower clamping jaws extend into the jack.

As a further improvement of the above technical solution:

the upper clamping jaw is T-shaped and comprises an upper sliding rod part and an upper clamping part with an inner end part.

The lower claw is T-shaped and comprises a lower sliding rod part and a lower clamping part with an inner end part.

The clamping surfaces at the inner sides of the upper clamping part and the lower clamping part are arc surfaces.

The width of the upper clamping part is larger than that of the upper slotted hole, and the width of the lower clamping part is larger than that of the lower slotted hole.

The top surface of the fixing frame and the position corresponding to the upper clamping jaw are provided with first screws along the axial direction, and the upper clamping jaw is fixed on the fixing frame through the first screws.

A plurality of mounting holes are formed in the base; the lower sliding rod part of the lower clamping jaw is provided with an inserting hole, a second screw is arranged in the inserting hole, and the lower clamping jaw is fixed on the base through the second screw.

The inserting holes are oblong holes.

The fixing frame is cylindrical, and a plurality of through holes are formed in the circumferential wall surface of the fixing frame.

The utility model has the advantages as follows:

when the utility model is used for clamping a bar, the upper clamping claws and the lower clamping claws on the upper side and the lower side of the fixing frame respectively clamp and fix two different parts of the bar, the clamping stability is good, the bar is not easy to shake in the rotating process to damage a tool bit, the processing precision of the bar is ensured, the processing efficiency is improved, and the product rejection rate is reduced; during the centre gripping, go up jack catch, lower jack catch through the arc surface cohesion at the bar surface, be surface contact with the bar surface, the lifting surface area is big, is difficult to cause the damage to the bar surface, and the cohesion area is big moreover, and the centre gripping is more stable, and the reliability is higher.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

In the figure: 1. a base; 11. mounting holes; 2. a fixed mount; 21. an upper slot; 22. a lower slot; 23. opening a hole; 24. a jack; 3. an upper jaw; 31. an upper slide bar part; 32. an upper clamping portion; 4. a lower jaw; 41. a lower slide bar part; 411. inserting holes; 42. a lower clamping portion; 5. a first screw; 6. a second screw.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the utility model comprises a base 1, a fixing frame 2, an upper jaw 3 and a lower jaw 4.

As shown in fig. 1 and 2, a plurality of mounting holes 11 are formed in the plate surface of the base 1 in an array manner, and a cylindrical fixing frame 2 is vertically arranged on the base 1 and fixed by a fastener. The center of the fixed frame 2 is provided with a jack 24 for inserting a bar, the circumferential wall surface of the upper end part of the fixed frame 2 is provided with a plurality of through upper slotted holes 21 along the circumferential direction, and the circumferential wall surface of the lower end part of the fixed frame 2 is provided with a plurality of through lower slotted holes 22 along the circumferential direction; the upper clamping jaw 3 and the lower clamping jaw 4 are respectively inserted into the upper slotted hole 21 and the lower slotted hole 22 along the radial direction, the inner end parts of the upper clamping jaw 3 and the lower clamping jaw 4 extend into the jack 24, and the upper clamping jaw 3 and the lower clamping jaw 4 can slide in the upper slotted hole 21 and the lower slotted hole 22 along the radial direction to adjust the clamping position. Still set up a plurality of trompils 23 that link up on the circumference wall of mount 2, fix mount 2 on base 1 through the fastener at the lower side of trompil 23, trompil 23 still makes things convenient for the bar to take, the 2 gripping of mount and the locking of jack catch simultaneously.

The upper jaw 3/the lower jaw 4 is T-shaped and comprises an upper slide bar part 31/a lower slide bar part 41 and an upper clamping part 32/a lower clamping part 42 with an inner end part, the upper slide bar part 31/the lower slide bar part 41 is inserted into the upper slotted hole 21/the lower slotted hole 22, the width of the upper clamping part 32/the lower clamping part 42 is larger than that of the upper slotted hole 21/the lower slotted hole 22, and the upper jaw 3 and the lower jaw 4 can be prevented from being separated from the upper slotted hole 21 and the lower slotted hole 22; the clamping surface at the inner side of the upper clamping part 32/the lower clamping part 42 is a circular arc surface; when a bar is clamped, the upper clamping jaw 3 and the lower clamping jaw 4 on the upper side and the lower side of the fixing frame 2 are respectively clamped and fixed at two different parts of the bar, the clamping stability is good, the bar is not easy to shake in the rotating process to damage a tool bit, the processing precision of the bar is ensured, the processing efficiency is improved, and the product rejection rate is reduced; during the centre gripping, go up jack catch 3, lower jack catch 4 through the arc surface cohesion at the bar surface, be surface contact with the bar surface, the lifting surface area is big, is difficult to cause the damage to the bar surface, and the cohesion area is big moreover, and the centre gripping is more stable, and the reliability is higher. The top surface of the fixed frame 2 and the position corresponding to the upper clamping jaw 3 are provided with a first screw 5 along the axial direction, and after the upper clamping jaw 3 slides along the upper slotted hole 21 and is adjusted to a clamping position, the first screw 5 is screwed down to compress and fix the upper clamping jaw 3 on the fixed frame 2. The lower sliding rod part 41 of the lower clamping jaw 4 is provided with an insertion hole 411, a second screw 6 is arranged in the insertion hole 411, the lower clamping jaw 4 slides along the lower slotted hole 22 and is adjusted to a clamping position, the second screw 6 is screwed into the opposite mounting hole 11 of the base 1, and the lower clamping jaw 4 can be tightly pressed and fixed on the base 1; the insertion holes 411 are oblong holes, and can provide an adjustment space for the second screws 6, so that the second screws 6 can be adjusted to the hole positions corresponding to the mounting holes 11 to achieve fastening.

The utility model discloses during the in-service use, the bar of waiting to process inserts jack 24 of 2 central authorities of mount along the axial, and each is gone up jack catch 3, jack catch 4's position to pressing from both sides tight bar after in the adjustment, screws up each first screw 5, second screw 6, will respectively go up jack catch 3, jack catch 4 is fixed down, accomplishes the centre gripping of bar.

The above description is illustrative of the present invention and is not intended to limit the present invention, and any modifications may be made without departing from the spirit of the present invention.

Claims

1. The utility model provides a bar material clamping tool which characterized in that: the base (1) is provided with a fixing frame (2), the center of the fixing frame (2) is provided with an insertion hole (24), the upper end wall and the lower end wall of the fixing frame (2) are respectively provided with a plurality of through upper slotted holes (21) and lower slotted holes (22), a plurality of upper clamping jaws (3) and lower clamping jaws (4) are respectively inserted into the upper slotted holes (21) and the lower slotted holes (22), and the inner ends of the upper clamping jaws (3) and the lower clamping jaws (4) extend into the insertion hole (24).

2. The bar clamping tool of claim 1, wherein: the upper claw (3) is T-shaped and comprises an upper slide rod part (31) and an upper clamping part (32) with an inner end part.

3. The bar clamping tool of claim 1, wherein: the lower claw (4) is T-shaped and comprises a lower sliding rod part (41) and a lower clamping part (42) with an inner end part.

4. A bar clamping tool according to claim 2 or 3, wherein: the clamping surfaces at the inner sides of the upper clamping part (32) and the lower clamping part (42) are arc surfaces.

5. A bar clamping tool according to claim 2 or 3, wherein: the width of the upper clamping part (32) is larger than that of the upper slotted hole (21), and the width of the lower clamping part (42) is larger than that of the lower slotted hole (22).

6. The bar clamping tool of claim 1, wherein: the top surface of the fixing frame (2) and the position corresponding to the upper clamping jaw (3) are provided with first screws (5) along the axial direction, and the upper clamping jaw (3) is fixed on the fixing frame (2) through the first screws (5).

7. The bar clamping tool of claim 1, wherein: a plurality of mounting holes (11) are formed in the base (1); the lower sliding rod part (41) of the lower clamping jaw (4) is provided with an insertion hole (411), a second screw (6) is arranged in the insertion hole (411), and the lower clamping jaw (4) is fixed on the base (1) through the second screw (6).

8. The bar clamping tool of claim 7, wherein: the insertion hole (411) is an oblong hole.

9. The bar clamping tool of claim 1, wherein: the fixing frame (2) is cylindrical, and a plurality of through holes (23) are formed in the circumferential wall surface of the fixing frame (2).