A kind of pull tooth position limiting clamp and vertical broaching machine

Abstract

The utility model relates to a draw -bench clamp technical field discloses a kind of draw tooth limit fixture and vertical draw -bench, on the one hand, a kind of draw tooth limit fixture includes clamp base plate, and positioning module, compression module and tool guide structure are provided on clamp base plate, positioning module is set on clamp base plate, compression module is set on the two sides of positioning module, tool guide structure is correspondingly set above clamp base plate, and compression module includes compression cylinder, first compression column being set on the output end of compression cylinder and second compression column being set opposite to first compression column, and limit cavity is equipped between first compression column and second compression column, tool guide structure includes guide fixed base and two groups of guide block being set on guide fixed base, guide fixed base is provided with guide slot, and two groups of guide block are set on the two sides of guide slot, guide fixed base is provided with connecting jack, and waist type hole is provided on guide block, and fastener is inserted after waist type hole is connected with connecting jack.

Description

Technical Field

[0001] This utility model relates to the field of broaching machine fixture technology, and in particular to a broaching tooth limiting fixture and a vertical broaching machine. Background Technology

[0002] Currently, broaching machines are machine tools that use broaches as cutting tools to machine through holes, planes, and shaped surfaces of workpieces. Broaching can achieve high dimensional accuracy and low surface roughness, has high productivity, and is suitable for mass production.

[0003] existing Figure 5 The machining process of the door closer piston shown mainly uses a horizontal broaching machine for tooth cutting. Horizontal broaching machines have the following disadvantages: 1. The fixtures are bulky and inconvenient to install. 2. Workpiece placement is cumbersome, resulting in low production efficiency. 3. The tool guide device is prone to wear and requires frequent replacement, affecting the machining accuracy of the product. Since vertical broaching machines occupy less space, they are now used instead of horizontal broaching machines for machining. Therefore, for pistons machined on vertical broaching machines, those skilled in the art have designed a tooth cutting limiting fixture and a vertical broaching machine. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a broaching tooth limiting fixture and a vertical broaching machine, which facilitates processing on the vertical broaching machine, saves equipment operating costs, and improves equipment production efficiency.

[0005] The technical solution of this utility model is as follows: On one hand, this utility model discloses a toothed limiting fixture, including a fixture base plate. The fixture base plate is provided with a positioning module, a clamping module, and a tool guide structure. The positioning module is disposed on the fixture base plate, the clamping module is disposed on both sides of the positioning module, and the tool guide structure is correspondingly disposed above the fixture base plate. The clamping module includes a clamping cylinder, a first clamping column disposed on the output end of the clamping cylinder, and a second clamping column disposed opposite to the first clamping column. A limiting cavity is provided between the first clamping column and the second clamping column. The tool guide structure includes a guide fixing seat and two sets of guide blocks disposed opposite to each other on the guide fixing seat. The guide fixing seat is provided with a guide groove, and the two sets of guide blocks are disposed opposite to each other on both sides of the guide groove. The guide fixing seat is provided with a connecting insertion hole, and the guide blocks are provided with oblong holes. Fasteners are inserted into the oblong holes corresponding to the connecting insertion holes.

[0006] As can be seen from the above scheme, the positioning module is used to position the front and rear sides of the piston workpiece to be processed, the clamping module is used to clamp and limit the left and right sides of the piston workpiece to be processed, the limiting cavity is used to place the piston workpiece to be processed, the tool guide structure is used to guide the broach on the broaching machine through the guide groove, and the different positions of the waist-shaped hole on the guide block correspond to the connecting insertion hole after fasteners are inserted to realize the position adjustment of the guide block. The clamping cylinder is used to drive the first clamping column to move toward the second clamping column to realize the clamping of the piston workpiece to be processed. This utility model ensures that the center of the tool is consistent with the center of the workpiece through the adjustable tool guide block.

[0007] The positioning module includes a positioning seat, a positioning block disposed on the positioning seat, and a positioning post. The positioning block and the positioning post are positioned facing each other. One end of the positioning post is disposed within the guide fixing seat via a spring member, and the other end extends out of the guide fixing seat. The limiting cavity is located between the positioning post and the positioning block. Therefore, the positioning module is used to limit the front and rear sides of the piston workpiece to be processed. The positioning post elastically limits the rear side of the piston workpiece via the spring member, and the positioning block limits the front side of the piston workpiece.

[0008] The inner side of the positioning block is provided with an inclined guide surface facing the limiting cavity. Therefore, the inclined guide surface is used to guide and limit the placement of the piston part to be processed.

[0009] The bottom of the fixture base plate is provided with a limiting hole, the diameter of which is greater than the width of the guide groove.

[0010] The positioning base is provided with a contoured through hole via a positioning mounting plate. Therefore, the contoured through hole is used for the broach to pass through the workpiece, facilitating broaching processing.

[0011] On the other hand, this utility model discloses a vertical broaching machine, including a base, a vertical machine body mounted on the base, a main drive assembly, a slide, a broach assembly, and two sets of broach tooth limiting fixtures arranged side-by-side on the slide. The vertical machine body is covered with a protective shell. The broach assembly includes two sets of broaches connected side-by-side to the vertical machine body. The slide is connected to the output end of the main drive assembly, and the width of the broaches is adapted to the guide groove. Therefore, this utility model, by employing a double-unit, two-station fixture design, can clamp two materials at once and perform broaching processing simultaneously, thus improving processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is another structural schematic diagram of the present invention;

[0014] Figure 3 This is a partial explosion diagram of the present invention;

[0015] Figure 4 This is a bottom view of the present invention;

[0016] Figure 5 This is a schematic diagram of the piston workpiece to be processed;

[0017] Figure 6 This is a structural schematic diagram of a vertical broaching machine;

[0018] Figure 7 This is a schematic diagram of the internal structure of a vertical broaching machine. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figures 1 to 7 As shown, this utility model discloses a toothed limit fixture, including a fixture base plate 2. The fixture base plate 2 is provided with a positioning module 3, a clamping module 4, and a tool guide structure. The positioning module 3 is disposed on the fixture base plate 2, the clamping module 4 is disposed on both sides of the positioning module 3, and the tool guide structure is correspondingly disposed above the fixture base plate 2. The clamping module 4 includes a clamping cylinder 41, a first clamping column 42 disposed on the output end of the clamping cylinder 41, and a clamping mechanism connected to the first clamping column 42. The second clamping column 43 is arranged facing each other, and a limiting cavity is provided between the first clamping column 42 and the second clamping column 43. The tool guide structure includes a guide fixing seat 5 and two sets of guide blocks 6 arranged facing each other on the guide fixing seat 5. The guide fixing seat 5 is provided with a guide groove 51, and the two sets of guide blocks 6 are arranged facing each other on both sides of the guide groove 51. The guide fixing seat 5 is provided with a connecting insertion hole, and the guide block 6 is provided with a waist-shaped hole 61. A fastener 7 is inserted into the waist-shaped hole 61 corresponding to the connecting insertion hole. In this embodiment, the two sets of guide blocks 6 are respectively arranged facing each other on both sides of the guide groove 51. The guide block 6 is an adjustable tool guide block. After the fastener 7 is aligned with the connecting insertion hole in the waist-shaped hole 61, the guide block 6 is limited and fastened. The side is limited by the connecting plug 62. The fixture assembly 1 includes two sets arranged side by side on the vertical broaching machine. The guide fixing seat 5 is fixed to the fixture base plate 2 by the mounting block 50. Figure 6As shown in the figure, the piston workpiece to be processed in this utility model is marked as 100. The piston workpiece 100 is provided with a processing groove 110. The piston workpiece 100 has a first end face 101 and a second end face 102 at both ends. The guide groove 51 is correspondingly arranged above the processing groove 110. Through the tool guide structure, the center line of the tool is ensured to be consistent with the center line of the workpiece.

[0021] The positioning module 3 includes a positioning base 31, a positioning block 32 disposed on the positioning base 31, and a positioning post 33. The positioning block 32 and the positioning post 33 are disposed facing each other. One end of the positioning post 33 is disposed in the guide fixing seat 5 through a spring member 34, and the other end extends out of the guide fixing seat 5. The limiting cavity is located between the positioning post 33 and the positioning block 32.

[0022] The inner side of the positioning block 32 is provided with an inclined guide surface 321 facing the limiting cavity. The bottom of the fixture base plate 2 is provided with a limiting hole 21, the diameter of which is greater than the width of the guide groove 51.

[0023] The positioning base 31 is provided with a contoured through hole 351 via a positioning mounting plate 35, and the contoured through hole 351 is adapted to the machining groove 110 of the workpiece.

[0024] On the other hand, this utility model discloses a vertical broaching machine, including a base 110, a vertical machine body 120 disposed on the base 110, a main drive assembly 130, a slide 140, a broach assembly, and two sets of broach tooth limiting fixtures arranged side by side on the slide 140. A protective shell 160 covers the vertical machine body 120. The broach assembly includes two sets of broaches 150 connected side by side to the vertical machine body 120. The slide 140 is connected to the output end of the main drive assembly 130. The width of the broaches 150 is adapted to the guide groove 51. It also includes a chip removal system 170, an oil mist collector, and an electrical control cabinet 180 disposed outside the protective shell 160. This utility model adopts a double-unit, two-station design, which can clamp two materials at once and perform broaching processing simultaneously, improving processing efficiency.

[0025] The working process of this utility model is as follows: The broach is inserted into the tool guide structure through the guide groove 51. The piston workpiece 100 is placed in the limiting cavity. The piston workpiece 100 enters the limiting cavity along the inclined guide surface 321 on the inner side of the positioning block 32. After the rear side of the piston workpiece 100 contacts the positioning post 33, it compresses the spring 34 inward. The piston workpiece 100 is limited and placed between the positioning post 33 and the positioning block 32. After the piston product 100 is clamped and positioned, the clamping cylinder 41 drives the first clamping post 42 to move. The second end face 102 of the piston workpiece 100 contacts the second clamping post 43, and the clamping cylinder 41 outputs... The first clamping column 42 at the end clamps the first end face 101 of the piston workpiece 100. The fixture base plate 2 is placed on the slide 140 of the broaching machine. The broach 150 passes through the guide groove 51 and the machining groove 110 on the piston workpiece 100 from top to bottom. By adjusting the position of the guide blocks 6 on both sides, the broach 150 is aligned with the center line of the workpiece. After the broach 150 is clamped, the slide 140 drives the two sets of limit fixtures and the workpiece to move upward and enter the broaching process. After the broaching is completed, the main slide moves forward, the broach is disengaged from the workpiece, the main slide moves downward back to its original position, the workpiece is taken out, and it waits for the next cycle.

[0026] Finally, it should be emphasized that the above description is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A toothed limiting clamp, comprising a clamp base plate (2), characterized in that: The fixture base plate (2) is provided with a positioning module (3), a clamping module (4), and a tool guide structure. The positioning module (3) is located on the fixture base plate (2), the clamping module (4) is located on both sides of the positioning module (3), and the tool guide structure is located above the fixture base plate (2). The clamping module (4) includes a clamping cylinder (41), a first clamping column (42) located on the output end of the clamping cylinder (41), and a second clamping column (43) located opposite to the first clamping column (42). A limiting cavity is provided between a clamping column (42) and a second clamping column (43). The tool guide structure includes a guide fixing seat (5) and two sets of guide blocks (6) arranged opposite to each other on the guide fixing seat (5). The guide fixing seat (5) is provided with a guide groove (51). The two sets of guide blocks (6) are arranged opposite to each other on both sides of the guide groove (51). The guide fixing seat (5) is provided with a connecting insertion hole. The guide block (6) is provided with a waist-shaped hole (61). A fastener (7) is inserted into the waist-shaped hole (61) corresponding to the connecting insertion hole.

2. The toothed limiting clamp according to claim 1, characterized in that: The positioning module (3) includes a positioning seat (31), a positioning block (32) disposed on the positioning seat (31), and a positioning post (33). The positioning block (32) and the positioning post (33) are arranged facing each other. One end of the positioning post (33) is disposed in the guide fixing seat (5) through a spring member (34), and the other end extends out of the guide fixing seat (5). The limiting cavity is located between the positioning post (33) and the positioning block (32).

3. The toothed limiting clamp according to claim 2, characterized in that: The inner side of the positioning block (32) is provided with an inclined guide surface (321) facing the limiting cavity.

4. The toothed limiting clamp according to claim 1, characterized in that: The bottom of the fixture base plate (2) is provided with a limiting hole (21), the diameter of which is greater than the width of the guide groove (51).

5. A toothed limiting clamp according to claim 2, characterized in that: The positioning base (31) is provided with a contoured through hole (351) via a positioning mounting plate (35).

6. A vertical broaching machine with a broaching tooth limiting fixture according to any one of claims 1 to 5, characterized in that: The device includes a base (110), a vertical body (120) mounted on the base (110), a main drive assembly (130), a slide (140), a broach assembly, and two sets of broach tooth limiting clamps arranged in parallel on the slide (140). The vertical body (120) is covered with a protective shell (160). The broach assembly includes two sets of broaches (150) connected in parallel on the vertical body (120). The slide (140) is connected to the output end of the main drive assembly (130). The width of the broaches (150) is adapted to the guide groove (51).

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