Brass guide frame machining and positioning clamp

Abstract

The utility model provides a brass guide frame machining positioning clamp, relates to the technical field of positioning clamps, and aims to solve the technical problem that potential safety hazards exist due to the fact that a waste material part is likely to collide with a main body part when the waste material part is separated from the main body part in the brass guide frame machining process in the prior art. A brass guide frame machining positioning clamp comprises a bottom plate used for containing a product, the bottom end of the bottom plate is connected with a first air cylinder and a second air cylinder, the bottom plate is provided with a first through hole and a second through hole, and a piston rod of the first air cylinder penetrates through the first through hole and is detachably connected with a first fixing assembly. A piston rod of the second air cylinder penetrates through the second through hole and is detachably connected with a second fixing assembly, when a product is placed on the bottom plate, the first air cylinder fixes the waste part of the product through the first fixing assembly, and the second air cylinder fixes the main body part of the product through the second fixing assembly.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically to a positioning fixture for processing brass guide frames. Background Technology

[0002] The machining of brass guide frames requires hollowing out a large area in the middle. If this middle section is directly milled away, it wastes a significant amount of machining time, resulting in low efficiency. Another method to reduce machining time and improve efficiency is to mill a closed annular groove along the outline of the section to be hollowed out in the middle of the brass guide frame. This allows the scrap material in the middle of the guide frame to be separated from the main body, directly obtaining the hollowed-out brass guide frame. However, in this method, the scrap material may move during separation from the main body, potentially causing it to collide with the cutting tools or other structures, posing a safety hazard. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a brass guide frame processing positioning fixture to solve the technical problem that the scrap part may collide with the main body when separating during the processing of the brass guide frame, which poses a safety hazard.

[0004] To solve the above-mentioned technical problems, this utility model provides a brass guide frame processing positioning fixture, including a base plate for placing products. A first cylinder and a second cylinder are connected to the bottom end of the base plate. The base plate is provided with a first through hole and a second through hole. The piston rod of the first cylinder passes through the first through hole and is detachably connected to a first fixing component. The piston rod of the second cylinder passes through the second through hole and is detachably connected to a second fixing component. When the product is placed on the base plate, the first cylinder fixes the waste part of the product through the first fixing component, and the second cylinder fixes the main body part of the product through the second fixing component.

[0005] With the above structure, the brass guide frame processing positioning fixture of this utility model has the following advantages: the product is placed on the base plate, the first fixing component is connected to the piston rod of the first cylinder, and the second fixing component is connected to the piston rod of the second cylinder. After the piston rod of the first cylinder retracts, the first fixing component abuts against the scrap part of the product, and after the piston rod of the second cylinder retracts, the second fixing component abuts against the main body of the product. During the processing, after the scrap part separates from the main body, the scrap part is still fixed by the first cylinder and the first fixing component to prevent the scrap part from moving and eliminate safety hazards.

[0006] As an improvement, the first fixing component includes a first bolt and a first pressure block. The first bolt is threadedly connected to the piston rod of the first cylinder. The first pressure block has a first through groove that penetrates the side wall of the first pressure block. The first bolt is located in the first through groove. The first pressure block is used to abut against the waste part of the product. With this structure, the connection and disassembly are convenient because the first bolt is threadedly connected to the piston rod of the first cylinder. The stability of fixing the waste part is improved by the first pressure block abutting against the waste part. The first through groove facilitates the connection and disassembly of the first pressure block and the first bolt, making it faster and more convenient to use.

[0007] As an improvement, the second fixing component includes a second bolt and a pressure plate. The second bolt is threadedly connected to the piston rod of the second cylinder, and the pressure plate is provided with a third through hole for the second bolt to pass through. The pressure plate is used to abut against the main body of the product. With this structure, the connection and disassembly are more convenient through the threaded connection between the second bolt and the piston rod of the second cylinder, and the stability of the main body is improved by abutting against the main body.

[0008] As an improvement, the second fixing component also includes a POM pressure block, which is connected to the bottom of the pressure plate by a third bolt. The pressure plate abuts against the main body of the product through the POM pressure block. With this structure, the POM pressure block is in direct contact with the product, preventing the product from being crushed.

[0009] As an improvement, POM blocks are connected to both the left and right sides of the bottom of the pressure plate by a third bolt. The second fixing component also includes a support block, which is connected to the base plate by a fourth bolt. One POM block abuts against the support block, and the other POM block abuts against the main body of the product. With this structure, the support block is set to be at the same height as the main body of the product. The simultaneous installation of POM blocks on both the left and right sides of the bottom of the pressure plate allows the pressure plate to remain in a horizontal state, improving the stability of fixing the main body of the product.

[0010] As an improvement, the second fixing component also includes a second pressure block, which has a second through groove that penetrates the side wall of the second pressure block, and the second bolt is located in the second through groove. With this structure, the stability of fixing the main body of the product is improved by setting the second pressure block, and the setting of the second through groove can facilitate the connection and disassembly of the second pressure block and the second bolt, making it faster and more convenient to use.

[0011] As an improvement, the upper end face of the pressure plate is provided with a limiting hole for accommodating the second pressure block; with this structure, the limiting hole plays a limiting role in the second pressure block.

[0012] As an improvement, a second through hole is provided on each of the left and right sides of the first through hole, and a second cylinder is provided on each of the left and right sides of the first cylinder. Each second cylinder is connected to a set of second fixing components. With this structure, the two second cylinders and the two sets of second fixing components fix both sides of the main body of the product, further improving stability.

[0013] As an improvement, shims are connected to both the left and right sides of the bottom of the base plate, and each shim has a groove on its outer side wall; this structure makes it easier to install the shims on the workbench.

[0014] As an improvement, the upper surface of the base plate is provided with a clearance groove along the edge of the residual material of the product; this structure prevents the milling cutter from milling away the base plate material during the processing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is an exploded structural diagram of the present invention.

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] Figure 4 This is a top view of the base plate of this utility model.

[0019] Reference numerals: 1. Base plate; 2. First cylinder; 3. Second cylinder; 4. First through hole; 5. Second through hole; 6. First fixing component; 61. First bolt; 62. First pressure block; 7. Second fixing component; 71. Second bolt; 72. Pressure plate; 73. POM pressure block; 74. Support block; 75. Second pressure block; 8. First through groove; 9. Third through hole; 10. Second through groove; 11. Limiting hole; 12. Elevating block; 13. Groove; 14. Clearance groove; 15. First positioning pin; 16. Second positioning pin; 100. Scrap part; 200. Main body part. Detailed Implementation

[0020] The following is a detailed description of a brass guide frame processing and positioning fixture according to the present invention, with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown, a brass guide frame machining positioning fixture includes a base plate 1 for placing products. The base plate 1 is made of 40Cr steel and heat-treated to a hardness of 30-35HRC. Figure 3As shown, a first positioning pin 15 is connected to the base plate 1. Correspondingly, a positioning pin hole is provided on the product. When the product is placed, the positioning pin hole and the first positioning pin 15 position the product. Furthermore, the first positioning pin 15 is also fixedly connected to the base plate 1 by bolts. In this embodiment, the positioning pin hole on the base plate 1 and the product is made with a tolerance of +0.03 / +0.01, and the outer diameter tolerance of the first positioning pin 15 is made with a tolerance of -0.01 / -0.03, which facilitates the limiting and tight fit between the positioning pin hole and the first positioning pin 15. The first positioning pin 15 is made of 40Cr steel and heat-treated to a hardness of 30-35HRC.

[0022] like Figure 1 and Figure 2 As shown, both the left and right sides of the bottom of the base plate 1 are connected to the shim blocks 12. Each shim block 12 has a groove 13 on its outer side wall. That is, the left end face of the left shim block 12 is provided with a groove 13, and the right end face of the right shim block 12 is provided with a groove 13. The groove 13 penetrates the front and rear end faces of the shim block 12. In this embodiment, the groove 13 is 20mm high, which facilitates the installation of the shim block 12 on the workbench.

[0023] The shim block 12 is made of 45# steel and heat-treated to a hardness of 28-32HRC. The shim block 12 is connected and fixed to the base plate 1 by bolts, and a second positioning pin 16 is connected to the shim block 12. The base plate 1 is provided with positioning pin holes corresponding to the positions of the second positioning pin 16. The positioning pin holes on the base plate 1 and the shim block 12 are made according to the tolerance of -0.01 / -0.03. The second positioning pin 16 is made of 40Cr steel and heat-treated to a hardness of 30-35HRC. The outer diameter tolerance is made according to the tolerance of -0.01 / -0.03, which facilitates the limiting and tight fit with the base plate 1 and the shim block 12.

[0024] like Figures 1 to 3 As shown, a first cylinder 2 and a second cylinder 3 are connected to the bottom end of the base plate 1. The base plate 1 has a first through hole 4 and a second through hole 5. The piston rod of the first cylinder 2 passes through the first through hole 4 and is detachably connected to a first fixing component 6. The piston rod of the second cylinder 3 passes through the second through hole 5 and is detachably connected to a second fixing component 7. When the product is placed on the base plate 1, the first cylinder 2 fixes the waste part 100 of the product through the first fixing component 6, and the second cylinder 3 fixes the main body part 200 of the product through the second fixing component 7. In this embodiment, a second through hole 5 is provided on the left and right sides of the first through hole 4, and a second cylinder 3 is provided on the left and right sides of the first cylinder 2. Each second cylinder 3 is connected to a set of second fixing components 7. That is, the second cylinder 3 on the left side and the second fixing component 7 fix the left side of the main body part 200 of the product, and the second cylinder 3 on the right side and the second fixing component 7 fix the right side of the main body part 200 of the product.

[0025] like Figures 1 to 3As shown, the first fixing component 6 includes a first bolt 61 and a first pressure block 62. The first bolt 61 is threadedly connected to the piston rod of the first cylinder 2. The first pressure block 62 is provided with a first through groove 8 that penetrates the side wall of the first pressure block 62. One end of the first through groove 8 extends from the center of the first pressure block 62 toward the side wall of the first pressure block 62. The first bolt 61 is located in the first through groove 8. The first pressure block 62 is used to abut against the waste part 100 of the product.

[0026] The second cylinder 3 on the left and the second fixing component 7 on the right have the same structure. The specific structure of the second cylinder 3 and the second fixing component 7 on one side will be described below.

[0027] like Figures 1 to 3 As shown, the second fixing component 7 includes a second bolt 71, a pressure plate 72, a POM pressure block 73, a support block 74, and a second pressure block 75. The second bolt 71 is threadedly connected to the piston rod of the second cylinder 3. The pressure plate 72 has a third through hole 9 for the second bolt 71 to pass through. The pressure plate 72 is used to abut against the main body 200 of the product. It should be noted that the abutment between the pressure plate 72 and the main body 200 of the product can be direct or indirect through other components. For example, in this embodiment, the POM pressure block 73 is connected to the bottom end of the pressure plate 72 by the third bolt. The pressure plate 72 abuts against the main body 200 of the product through the POM pressure block 73. The POM pressure block 73 is made of POM plastic to prevent product damage. The pressure plate 72 is made of 40Cr steel and heat-treated to a hardness of 30-35HRC.

[0028] In addition, POM pressure blocks 73 are connected to both sides of the bottom of the pressure plate 72 by third bolts, and support blocks 74 are connected to the base plate 1 by fourth bolts. The support blocks 74 are set at the same height as the product, with one POM pressure block 73 abutting against the support block 74 and the other POM pressure block 73 abutting against the main body 200 of the product. The support blocks 74 are made of 40Cr steel and heat-treated to a hardness of 30-35HRC. The support blocks 74 are also limited to the base plate 1 by locating pins.

[0029] like Figure 2 As shown, the second pressure block 75 is provided with a second through groove 10 that penetrates the side wall of the second pressure block 75. The second through groove 10 extends from the center of the second pressure block 75 toward the side wall of the second pressure block 75. The second bolt 71 is located in the second through groove 10. The upper end face of the pressure plate 72 is provided with a limiting hole 11 for accommodating the second pressure block 75. Both the first pressure block 62 and the second pressure block 75 are made of 40Cr steel and heat-treated to a hardness of 30-35HRC.

[0030] like Figure 4 As shown, the upper surface of the base plate 1 is provided with a clearance groove 14 along the edge of the residual material of the product.

[0031] like Figures 1 to 4As shown, the base plate 1 has two product mounting areas, one at the front and one at the back, which can clamp two products at a time, further improving processing efficiency. When the product is placed on the base plate 1, the first fixing component 6 is connected to the piston rod of the first cylinder 2, and the second fixing component 7 is connected to the piston rod of the second cylinder 3. After the piston rod of the first cylinder 2 retracts, it is abutted against the waste portion 100 of the product by the first fixing component 6. After the piston rod of the second cylinder 3 retracts, it is abutted against the main body portion 200 of the product by the second fixing component 7. During processing, even after the waste portion 100 separates from the main body portion 200, it is still fixed by the first cylinder 2 and the first fixing component 6 to prevent movement and eliminate safety hazards.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiment. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A brass guide frame machining positioning fixture, characterized in that, The utility model provides a product fixing device, including the bottom plate (1) for placing product, first air cylinder (2) and second air cylinder (3) are connected to the bottom end of bottom plate (1), first through -hole (4) and second through -hole (5) are equipped on bottom plate (1), first air cylinder (2) piston rod passes through first through -hole (4) and can detachably connect with first fixed assembly (6), second air cylinder (3) piston rod passes through second through -hole (5) and can detachably connect with second fixed assembly (7), when product is placed on bottom plate (1), first air cylinder (2) fixes the waste part (100) of product through first fixed assembly (6), and second air cylinder (3) fixes the main body part (200) of product through second fixed assembly (7).

2. The brass guide processing positioning fixture according to claim 1, characterized in that, The first fixed assembly (6) includes a first bolt (61) and a first pressing block (62), the first bolt (61) is threadedly connected with the piston rod of the first air cylinder (2), the first pressing block (62) is provided with a first through slot (8) that penetrates the side wall of the first pressing block (62), and the first bolt (61) is located in the first through slot (8), and the first pressing block (62) is used for abutting against the waste part (100) of the product.

3. The brass guide processing positioning fixture according to claim 1, characterized in that, The second fixed assembly (7) includes a second bolt (71) and a pressing plate (72), the second bolt (71) is threadedly connected with the piston rod of the second air cylinder (3), the pressing plate (72) is provided with a third through hole (9) for the second bolt (71) to pass through, and the pressing plate (72) is used for abutting against the main body part (200) of the product.

4. The brass guide processing positioning fixture according to claim 3, characterized in that, The second fixed assembly (7) further includes a POM pressing block (73), the POM pressing block (73) is connected to the bottom end of the pressing plate (72) through a third bolt, and the pressing plate (72) abuts against the main body part (200) of the product through the POM pressing block (73).

5. The brass guide processing positioning fixture according to claim 4, characterized in that, The left and right sides of the bottom end of the pressing plate (72) are connected with the POM pressing block (73) through the third bolt, the second fixed assembly (7) further includes a supporting block (74), the supporting block (74) is connected to the bottom plate (1) through a fourth bolt, one of the POM pressing blocks (73) abuts against the supporting block (74), and the other POM pressing block (73) abuts against the main body part (200) of the product.

6. The brass guide processing positioning fixture according to claim 3, characterized in that, The second fixed assembly (7) further includes a second pressing block (75), the second pressing block (75) is provided with a second through slot (10) that penetrates the side wall of the second pressing block (75), and the second bolt (71) is located in the second through slot (10).

7. The brass guide processing positioning fixture according to claim 6, characterized in that, The upper end surface of the pressing plate (72) is provided with a limiting hole (11) for accommodating the second pressing block (75).

8. The brass guide processing positioning fixture according to claim 1, characterized in that, The left and right sides of the first through hole (4) are respectively provided with one second through hole (5), and the left and right sides of the first air cylinder (2) are respectively provided with one second air cylinder (3), and each second air cylinder (3) is connected with a group of second fixed assemblies (7).

9. The brass guide processing fixture positioning clamp according to claim 1, characterized in that, The left and right sides of the bottom end of the bottom plate (1) are connected with the raised blocks (12), and the outer side walls of each raised block (12) are provided with grooves (13).

10. The brass guide processing positioning fixture according to claim 1, characterized in that, The upper end surface of the bottom plate (1) is provided with the avoiding grooves (14) arranged along the residual material edges of the products.

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