CN111230768A - A kind of jig for machining - Google Patents

Abstract

The invention discloses a clamping tool for machining, comprising: a workbench; a driving structure, which is detachably arranged on the workbench; a force clamping structure, which is detachably arranged on the driving structure; an auxiliary structure, which is movably arranged The invention relates to the technical field of processing fixture equipment. By placing the workpiece on the upper wall of the worktable and abutting against the force-bearing plate, the screw rod can be rotated through the handwheel, so that the bearing body can be moved to the receiving body through the sliding seat. The force plate moves and moves after being stressed by the two ejector rods, and the booster rod is squeezed through the opening guide angle to move the booster rod, which can then clamp and fix irregular-shaped workpieces or regular-shaped workpieces; The tube workpiece can be clamped and fixed by the auxiliary structure, and the lower workpiece can be raised at the same time; this design can not only fix the regular and irregular workpiece clamps, but also fix the tube workpiece at the same time, and it is easy to disassemble and clean .

Description

A kind of jig for machining

technical field

The invention relates to the technical field of machining fixture equipment, in particular to a machining fixture.

Background technique

Machining refers to the process of changing the external dimension or performance of a workpiece through a mechanical device; it can be divided into cutting processing and pressure processing according to the difference in processing methods; in the production process, any mechanical equipment is used to change the production object. The process of making it into a finished product or semi-finished product is called a technological process, which is all mechanical processing;

In the process of processing, the workpiece needs to be clamped and fixed to prevent it from moving during processing, causing processing deviation and affecting the processing quality; however, the existing fixtures are generally only suitable for clamping and fixing the same workpiece or applicable to rules. Shape clamping is too limited and single, and when encountering irregular-shaped workpieces, the clamping is not firm or even fixed; for example, after cutting, there will be a lot of residues accumulated in the clamping for a long time, which affects the clamping stability of the workpiece. And cleaning is more troublesome, and narrow gaps are often not cleaned. Therefore, a machining fixture is now designed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a jig for machining to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a machining fixture, comprising:

workbench;

A drive structure, which is detachably arranged on the workbench;

Forced clamping structure, which can be detachably installed on the driving structure;

Auxiliary structures, the activities of which are placed on the workbench;

The driving structure includes: a top plate, two pairs of first bolts with the same structure, and a screw rod;

The worktable has a rectangular structure, and a first slideway is opened at the center of its upper wall and is located on the left side of the center line. The left side wall of the worktable is provided with two pairs of first threaded holes with the same structure, and each The front and rear sides of the center line are symmetrical with each other, and a second mutual channel is opened on the right side of the center line of the upper wall. The corresponding first circular through holes with the same structure are provided with spiral through holes on the center line. In the first threaded hole of the side wall of the worktable, one end of the screw rod is movably inserted into the screw through hole of the top plate, and is screwed with the top plate.

The force clamping structure includes: a sliding seat, a carrier, a pair of ejector rods with the same structure, a booster rod, a spring, a transmission rod, a first jaw, a top cover, and two pairs of second bolts with the same structure;

The sliding seat is movably embedded in the first sliding channel of the upper wall of the workbench. The bearing body is a rectangular structure, and the four corners are provided with second threaded holes with the same structure, and the center line of the right end of the upper wall is two front and rear. Each side is provided with a first chute with the same structure, and the upper wall of the carrier is provided with a second chute perpendicular to the first chute and communicating with each other, and the inner center of the first chute and the second chute Positioning posts with the same structure are provided at all positions, a mounting groove is provided at the central part of the upper wall of the bearing body, and a U-shaped notch is formed on the right side wall of the groove, and the bearing body is fixedly welded to the upper wall of the sliding seat. It is located above the workbench, and its left side wall is movably connected to one end of the screw rod. The central part of a pair of the top rods is provided with a first limiting groove with the same structure, and one end is provided with a first limit groove. Guide angle, a pair of the top rods are respectively movably embedded in the first chute on the upper wall of the bearing body, and the first limit grooves are respectively sleeved on the limit post, and the central part of the boost rod is provided with a through hole A second limiting groove, and both ends of the second limiting groove are provided with a second guiding bevel that fits with the first guiding bevel at one end of the ejector rod. The second limit groove is sleeved on the limit post, the spring is movably embedded in the upper wall mounting groove of the carrier body, and one end of the transmission rod is movably embedded in the upper wall mounting groove of the carrier body, and is attached to the upper wall of the carrier body. One end of the spring and the other end of the spring are movably embedded in the U-shaped chute of the side wall of the installation groove. The first jaw is fixedly welded to the other end of the transmission rod and is located between a pair of the top rods. The lower wall of the cover is provided with a groove that fits with the bearing body, and the four corners of the upper wall are provided with second circular through holes corresponding to the second threaded holes of the upper wall of the bearing body, and the top cover can be detachably installed On the upper wall of the bearing body, one end of the two pairs of the second bolts respectively penetrates through the second circular through holes at the four corners of the top cover, and are respectively screwed into the second threaded holes on the upper wall of the bearing body.

Preferably, the auxiliary structure includes: a force plate, a slider, a spacer, a lock rod, a connecting rod, a second claw and a lock block;

The force plate is fixedly welded to the upper wall of the workbench, and is located at the edge of the right end wall, and a gap is opened at the center of the upper wall, and the slider is movably embedded in the second slideway of the upper wall of the workbench. The cushion block is fixedly welded on the slider, one end of the lock rod is movably inserted on the front wall of the force-bearing plate, and is located on the center line of the top end, and communicates with the gap, and one end of the connecting rod is movably embedded in the gap of the force-bearing plate Inside, and the central part is provided with a first rectangular through hole, the second claw is fixedly welded on the other end of the connecting rod, the locking block is fixedly welded on the side wall of the connecting rod, and is on the same horizontal line as the movable connection and a second rectangular through hole is opened at its center.

Preferably, the locking rod is a rectangular rod with a T-shaped structure.

Preferably, the sliding block and the sliding seat are both T-shaped structures.

Preferably, the structure of the first clamping claw and the second clamping claw is the same.

Preferably, the first slideway and the second slideway are both T-shaped structures.

Preferably, a hand wheel is fixedly sleeved on the other end of the screw rod.

Preferably, the transmission rod has a T-shaped structure.

Compared with the prior art, the beneficial effect of the present invention is that: in this kind of machining fixture, by placing the workpiece on the upper wall of the worktable and abutting against the force-bearing plate, the screw rod can be rotated by the handwheel, It is forced to extend through the top plate to drive the bearing body to move to the force-bearing plate through the sliding seat, and then move after being stressed by the two ejector rods. Offset the two ejector rods to clamp and fix irregular-shaped workpieces or regular-shaped workpieces; or by flipping the connecting rod and inserting the lock rod into the lock block to limit and fix the first and second jaws On the other hand, it is possible to clamp pipe workpieces, and also to heighten lower workpieces by installing spacers; this design can not only fix regular and irregular workpiece clamps, but also fix pipe workpieces, and Easy to disassemble for cleaning.

Description of drawings

Fig. 1 is the overall disassembly structure schematic diagram of the present invention;

Fig. 2 is the assembly structure schematic diagram of the present invention;

Fig. 3 is the partial disassembly structure schematic diagram of the present invention;

FIG. 4 is a schematic diagram of the enlarged structure of part A of the present invention.

In the figure: 1. Workbench, 2. Drive structure, 21, Top plate, 22, First bolt, 23, Screw rod, 3. Forced clamping structure, 31, Slide seat, 32, Bearing body, 33, Ejector rod , 34, booster rod, 35, spring, 36, transmission rod, 37, first jaw, 38, top cover, 39, second bolt, 4, auxiliary structure, 41, force plate, 42, slider, 43 , Pad, 44, lock lever, 45, connecting rod, 46, second jaw, 47, lock block, 5, hand wheel.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-4, the present invention provides a technical solution: a fixture for machining, comprising: a workbench 1; a driving structure 2, which is detachably arranged on the workbench 1; a force clamping structure 3, It is detachably arranged on the drive structure 2; the auxiliary structure 4 is movably arranged on the workbench 1; the drive structure 2 includes: a top plate 21, two pairs of first bolts 22 with the same structure and a screw rod 23; the workbench 1 is It has a rectangular structure, and a first slideway is opened at the center of its upper wall and is located on the left side of the center line. Two pairs of first threaded holes with the same structure are opened on the left side wall of the workbench 1, and they are located on the front and rear sides of the center line. Symmetrical with each other, and a second mutual channel is opened on the right side of the center line of the upper wall. The top plate 21 is detachably arranged on the left side wall of the workbench 1, and the side wall is provided with a second threaded hole corresponding to the same structure. A circular through hole is provided with a spiral through hole on its center line. One end of the two pairs of first bolts 22 is inserted into the first circular through hole of the top plate 21 respectively, and is screwed to the first circular through hole of the side wall of the workbench 1 respectively. In a threaded hole, one end of the screw rod 23 is movably inserted into the screw through hole of the top plate 21, and is screwed with the top plate 21; through the driving structure 2, the workpiece can be clamped by force; the force clamping structure 3, including : sliding seat 31, bearing body 32, a pair of ejector rods 33 with the same structure, a booster rod 34, a spring 35, a transmission rod 36, a first jaw 37, a top cover 38 and two pairs of second bolts 39 with the same structure; The seat 31 is movably embedded in the first slideway on the upper wall of the workbench 1, the carrier 32 is a rectangular structure, and the four corners are provided with second threaded holes with the same structure, and the center line of the right end of the upper wall is on both sides. A first chute with the same structure is provided, and the upper wall of the carrier body 32 is provided with a second chute which is perpendicular to the first chute and communicates with the first chute, and the first chute and the inner center of the second chute are equally spaced. There is a limit column with the same structure, a mounting groove is opened at the center of the upper wall of the bearing body 32, and a U-shaped notch is opened on the right side wall of the groove. 1 above, and its left side wall is movably connected to one end of the screw rod 23, a pair of top rods 33 are provided with a first limiting groove with the same structure at the central part, and one end is provided with a first bevel angle. A pair of top rods 33 are respectively movably embedded in the first chute on the upper wall of the bearing body 32, and the first limit grooves are respectively sleeved on the limit posts, and the central part of the booster rod 34 is provided with a through second limit A second guide bevel that fits with the first guide angle at one end of the ejector rod 33 is provided at both ends. The limit groove is sleeved on the limit post, the spring 35 is movably embedded in the upper wall mounting groove of the bearing body 32, and one end of the transmission rod 36 is movably embedded in the upper wall mounting groove of the bearing body 32, and is attached to one end of the spring 35 , and its other end is movably embedded in the U-shaped chute of the side wall of the installation groove, the first jaw 37 is fixedly welded to the other end of the transmission rod 36, and is located between a pair of top rods 33, and the lower wall of the top cover 38 is opened There are grooves that fit the carrier 32, and the four corners of the upper wall are Each part is provided with a second circular through hole corresponding to the second threaded hole on the upper wall of the bearing body 32, the top cover 38 is detachably arranged on the upper wall of the bearing body 32, and one end of the two pairs of second bolts 39 respectively penetrates through the roof. The four corners of the cover 38 are in the second circular through holes, and are respectively screwed into the second threaded holes on the upper wall of the bearing body 32; by the force clamping structure 3, the irregular workpiece can be tightened and fixed.

As a preferred solution, further, the auxiliary structure 4 includes: a force plate 41, a sliding block 42, a spacer block 43, a locking rod 44, a connecting rod 45, a second claw 46 and a locking block 47;

The force-bearing plate 41 is fixedly welded to the upper wall of the workbench 1, and is located at the edge of the right end wall, and a gap is opened at the center of the upper wall. 43 It is fixedly welded on the slider 42, one end of the locking rod 44 is movably inserted on the front wall of the force-bearing plate 41, and is located on the center line of the top end, and communicates with the gap, and one end of the connecting rod 45 is movably embedded in the force-bearing plate 41. Inside the gap, and a first rectangular through hole is opened at the center, the second jaw 46 is fixedly welded to the other end of the connecting rod 45, and the lock block 47 is fixedly welded to the side wall of the connecting rod 45, and is the same as the movable connection. A second rectangular through hole is opened on the horizontal line and at the central part thereof.

As a preferred solution, further, the locking rod 44 is a rectangular rod with a T-shaped structure, which is used for design requirements to facilitate the locking and fixing of the connecting rod 45 .

As a preferred solution, further, the sliding block 42 and the sliding seat 31 are both T-shaped structures, which are convenient for installation.

As a preferred solution, further, the first claws 37 and the second claws 46 have the same structure, which is convenient for clamping the pipe.

As a preferred solution, further, the first slideway and the second slideway are both T-shaped structures, which are convenient for installation and position limit.

As a preferred solution, further, a hand wheel 5 is fixedly sleeved on the other end of the screw rod 23, so as to facilitate the rotation of the screw rod 23.

As a preferred solution, further, the transmission rod 36 is a T-shaped structure, which is convenient for pressing the spring 35 under force.

The detailed connection means are known in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

Example: As can be seen from the accompanying drawings 1-4 of the description, firstly, by placing the workpiece on the upper wall of the worktable 1 and abutting the force-bearing plate 41 in the auxiliary structure 4, the handwheel 5 can be used to rotate the driving structure 2. The screw rod 23 is subjected to force through the top plate 21 fixed on the side wall of the workbench 1 by the first bolt 22, and one end is extended relative to the top plate 21 to drive the bearing body 32 in the stressed clamping structure 3 through the sliding seat 31. The force-receiving plate 41 moves, and after being stressed by the two ejector rods 33 fixed under the top cover 38 of the upper wall of the bearing body 32 by the second bolts 39, the movement is limited by the internal limit column, and the opening of the guide angle will meet the force. Squeeze the booster rod 34 to move the booster rod 34, so that the two ejector rods 33 can be offset to clamp and fix the irregular-shaped workpiece or the regular-shaped workpiece. The rod 36 is driven to compress the spring 35, which can also assist in clamping the workpiece; also by turning over the connecting rod 45 in the auxiliary structure 4, the first claw 37 is opposite to the second claw 46, and inserted through the locking rod 44 The locking block 47 is limited and fixed inside, so that the first jaw 37 and the second jaw 46 can cooperate to mount pipe workpieces, and the slider 42 can be used to install the pad 43 to elevate the lower workpiece.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A machining jig, comprising:

a table (1);

the driving structure (2) is detachably arranged on the workbench (1);

the stressed clamping structure (3) is detachably arranged on the driving structure (2);

an auxiliary structure (4) movably arranged on the worktable (1);

the drive structure (2) comprises: the device comprises a top plate (21), two pairs of first bolts (22) with the same structure and a screw rod (23);

the workbench (1) is of a rectangular structure, the center part of the upper wall of the workbench is provided with a first slideway, and is positioned at the left side of the central line, two pairs of first threaded holes with the same structure are arranged on the left side wall of the workbench (1) and are respectively positioned at the front side and the rear side of the central line and are mutually symmetrical, a second mutual channel is arranged on the right side of the central line of the upper wall of the top plate, the top plate (21) is detachably arranged on the left side wall of the workbench (1), the side wall of the top plate is provided with a first circular through hole which corresponds to the first threaded hole and has the same structure, a spiral through hole is arranged on the central line of the first bolt, one end of each of two pairs of first bolts (22) is respectively inserted into the first circular through hole of the top plate (21), and are respectively screwed in first threaded holes in the side wall of the workbench (1), and one end of the screw rod (23) is movably inserted in the screw through hole of the top plate (21) and is screwed with the top plate (21).

The stressed clamping structure (3) comprises: the device comprises a sliding seat (31), a bearing body (32), a pair of ejector rods (33) with the same structure, a boosting rod (34), a spring (35), a transmission rod (36), a first jaw (37), a top cover (38) and two pairs of second bolts (39) with the same structure;

the slide seat (31) is movably embedded in a first slide way on the upper wall of the workbench (1), the bearing body (32) is of a rectangular structure, second threaded holes with the same structure are formed in the four corners of the bearing body, first sliding grooves with the same structure are formed in the front side and the rear side of the central line of the right end of the upper wall of the bearing body, second sliding grooves which are perpendicular to and communicated with the first sliding grooves are formed in the upper wall of the bearing body (32), limiting columns with the same structure are formed in the central positions of the first sliding grooves and the second sliding grooves, a mounting groove is formed in the central position of the upper wall of the bearing body (32), a U-shaped notch is formed in the right side wall of the groove, the bearing body (32) is fixedly welded on the upper wall of the slide seat (31) and is positioned above the workbench (1), the left side wall of the bearing body is movably connected to one end of the spiral rod (23), and a pair of the ejector rods (33) is provided with a, one end of the transmission rod (36) is movably embedded in the upper wall mounting groove of the bearing body (32) and is attached to one end of the spring (35), the other end of the transmission rod is movably embedded in the U-shaped sliding groove of the mounting groove, the first clamping jaw (37) is fixedly welded to the other end of the transmission rod (36), and the top cover (38) is provided with a groove matched with the bearing body (32) at the lower wall thereof and second round through holes corresponding to the second threaded holes at the upper wall of the bearing body (32) at the four corners of the upper wall thereof, the top cover (38) is detachably arranged on the upper wall of the bearing body (32), and one ends of two pairs of second bolts (39) respectively penetrate through the second round through holes at the four corners of the top cover (38) and are respectively screwed in the second threaded holes at the upper wall of the bearing body (32).

2. The chuck for machining according to claim 1, wherein: the auxiliary structure (4) comprising: the device comprises a stress plate (41), a sliding block (42), a cushion block (43), a lock rod (44), a connecting rod (45), a second claw (46) and a lock block (47);

stress plate (41) fixed welding is in workstation (1) upper wall, and is located right side wall edge department to its upper wall center part department has seted up the opening, slider (42) activity is inlayed and is adorned in workstation (1) upper wall second slide, cushion (43) fixed welding is on slider (42), locking lever (44) one end activity cartridge in stress plate (41) preceding wall, and be located the top center line, and communicate with each other with the opening, connecting rod (45) one end activity is inlayed and is adorned in stress plate (41) opening, and center part department has seted up first rectangle through-hole, second jack catch (46) fixed welding is on connecting rod (45) other end, locking piece (47) fixed welding is on connecting rod (45) lateral wall, and with swing joint on same water flat line, and second rectangle through-hole has been seted up to center part department.

3. The chuck for machining according to claim 2, wherein: the lock rod (44) is a rectangular rod with a T-shaped structure.

4. A machining jig according to claim 1 or 2, characterized in that: the sliding block (42) and the sliding seat (31) are both of T-shaped structures.

5. A machining jig according to claim 1 or 2, characterized in that: the first jaw (37) and the second jaw (46) are identical in structure.

6. The chuck for machining according to claim 1, wherein: the first slide and the second slide are both T-shaped structures.

7. The chuck for machining according to claim 1, wherein: a hand wheel (5) is fixedly sleeved at the other end of the screw rod (23).

8. The chuck for machining according to claim 1, wherein: the transmission rod (36) is of a T-shaped structure.

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