Isolator attenuation piece pin bending tool

Abstract

The application discloses an isolator attenuation piece pin bending tool, and belongs to the technical field of isolator processing. The tool comprises a bottom plate (1), a limiting block (2), a lower bending cutter (4), a left limiting block (6), a right limiting block (9), an upper bending cutter (11), a sliding mounting plate (12), a linear guide rail (13), a guide cylinder (14), a vertical plate (17), a linear sliding block (18), a cylinder mounting plate (20), a cylinder (21), a spring pressing plate (23), a vertical limiting block (25), a spring A (26), a pressing column (27), an oil-free guide sleeve pressing plate (28), a cylinder connecting block (29) and a spring B (31). The tool can bend three isolator attenuation pieces at a time, the bending height can be continuously adjusted, different height requirements can be met, the tool has the advantages of simple structure, low cost, high consistency of output finished products, low labor intensity of manual operation and high bending efficiency.

Description

Technical Field

[0001] This invention relates to the field of isolator processing technology, and in particular to a tooling for bending the pins of isolator attenuation plates. Background Technology

[0002] Surface-mount isolators are currently used in the communications industry, and some of these products incorporate attenuator components. During the production and assembly of surface-mount isolators, the attenuator leads need to be bent. Due to the small size of the parts, manual bending is quite difficult and the bending accuracy is hard to guarantee. Therefore, tooling is necessary; however, no reports of such tooling have been found to date. Summary of the Invention

[0003] The purpose of this invention is to provide a bending fixture for the pins of an isolator attenuator to solve the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a bending fixture for the pins of an isolator attenuator plate, characterized in that it includes a base plate, a limiting block, a lower bending blade, a left limiting block, a right limiting block, an upper bending blade, a sliding mounting plate, a linear guide rail, a guide cylinder, a vertical plate, a linear slider, a cylinder mounting plate, a cylinder, a spring pressure plate, a vertical limiting block, a spring A, a pressure column, an oil-free guide sleeve pressure plate, a cylinder connecting block, and a spring B; wherein, the lower end of the vertical plate is fixedly connected to the base plate, the upper end of the vertical plate is fixedly connected to the cylinder mounting plate, and the two ends of the lower bending blade are respectively connected to the left limiting block. The left and right limit blocks are fixedly connected, and the right and left limit blocks are also fixedly connected to the base plate. An anti-drop platform is also provided between the left and right limit blocks to prevent materials from falling into the space where the anti-drop platform is located. The sliding mounting plate is fixedly connected to the linear slider, and the linear guide rail is fixedly connected to the vertical plate. Then, the linear slider slides into the left and right V-grooves of the linear guide rail through the left and right steel balls. The guide cylinder is fixedly connected to the sliding mounting plate, and the upper bending knife is also fixedly connected to the guide cylinder. The vertical limit block is fixedly connected to the guide cylinder. An oil-free guide sleeve is provided inside the guide cylinder.

[0005] As a preferred technical solution, the fixed connection is a screw connection.

[0006] As a preferred technical solution: the limiting block includes a guide and limiting rib, an attenuator positioning groove, a tweezers clearance groove, a pin support platform, and a spring sleeve hole. The guide and limiting rib cooperates with the corresponding grooves of the left and right limiting blocks. The shape of the attenuator positioning groove matches the shape of the attenuator. The tweezers clearance groove is used to avoid the tweezers tip when the tweezers pick up the attenuator. The pin support platform is used to support the pins of the attenuator. The spring sleeve hole is used to fit spring B and position spring B. The other end of spring B abuts against the upper surface of the base plate.

[0007] As a further preferred technical solution: the right limiting block includes a guide positioning groove, a screw through hole, a threaded hole A, and a limiting boss, wherein the guide positioning groove cooperates with the guide and limiting rib, the screw through hole passes through the screw B to fix the right limiting block to the base plate; the threaded hole A is installed with screw A to fix the downward bending knife to the right limiting block; the limiting boss is used to hook the limiting block, and the right limiting block is symmetrical to the left limiting block.

[0008] As a preferred technical solution: the guide cylinder includes a cylindrical hole, a threaded hole B, a positioning rib, a positioning boss, and a threaded hole C. The cylindrical hole is used to install an oil-free guide sleeve, and the threaded hole is used to install screws to fix the oil-free guide sleeve pressure plate and the vertical limiting block on the guide cylinder. The positioning rib cooperates with the sliding mounting plate to fix the left and right relative positions of the two. The positioning boss is used to position the upper bending knife.

[0009] As a preferred technical solution: the pressure column includes a spring sleeve, an anti-rotation surface, a cylindrical surface, a pressure column blade, a solder joint clearance groove, a lower pressure plane, and an upper plane. The spring sleeve is used to fit spring A. The anti-rotation surface engages with the side of the vertical limiting block to prevent the pressure column from rotating around its axis. The cylindrical surface is inserted into the inner circle of an oil-free guide sleeve, allowing the pressure column to move only vertically. When the pressure column blade moves downwards, it presses the attenuator pin against the pin support platform. The solder joint clearance groove avoids the protruding solder points at the ends of the attenuator pins. The lower pressure plane presses down on the upper surface of the attenuator, and the upper plane supports the spring.

[0010] The tooling of the present invention can conveniently, quickly and reliably bend the pins of the attenuator.

[0011] Compared with the prior art, the advantages of the present invention are as follows: the tooling of the present invention can bend three isolator attenuation plates into place at one time, and the bending height can be continuously adjusted to meet different height requirements. The present invention has a simple structure, low cost, high consistency of finished products, low labor intensity of manual operation, and bending efficiency is reduced by 4 seconds per piece compared with manual operation (8 seconds per piece by manual operation, 4 seconds per piece by using the tooling of the present invention), which doubles the efficiency. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of the tooling of the present invention;

[0013] Figure 2 for Figure 1 Exploded view;

[0014] Figure 3 Here is a structural diagram of the limit block;

[0015] Figure 4 This is a structural diagram of the right limiting block;

[0016] Figure 5Here is a structural diagram of the guide tube;

[0017] Figure 6 This is a structural diagram of the pressure column;

[0018] Figure 7 This is an assembly diagram of the spring pressure plate and the vertical limiting block;

[0019] Figure 8 This is an assembly diagram of the limit block, attenuation plate, and downward bending blade.

[0020] Figure 9 This is an assembly diagram of some parts;

[0021] Figure 10 This is a diagram showing the state of the attenuator before it is bent.

[0022] Figure 11 This is a diagram showing the state of the attenuator after it has been bent.

[0023] In the diagram: 1. Base plate; 2. Limiting block; 2-1. Guide and limiting rib; 2-2. Attenuator positioning groove; 2-3. Tweezers clearance groove; 2-4. Pin support platform; 2-5. Spring sleeve hole; 3. Attenuator; 3-1. Solder joint boss; 3-2. Pin; 3-3. Bending point; 4. Lower bending blade; 5. Screw A; 6. Left limiting block; 7. Screw B; 8. Anti-drop platform; 9. Right limiting block; 9-1. Guide positioning groove; 9-2. Screw through hole; 9-3. Threaded hole A; 9-4. Limiting boss; 10. Oil-free guide sleeve; 11. Upper bending blade; 12. Sliding mounting plate; 13. Linear guide rail; 14. Guide cylinder; 14-1. Cylindrical hole; 14-2. Threaded hole B; 14-3. Positioning rib; 14- 4. Positioning boss; 14-5. Threaded hole C; 15. Screw C; 16. Screw D; 17. Vertical plate; 18. Linear slider; 19. Screw E; 20. Cylinder mounting plate; 21. Cylinder; 22. Screw F; 23. Spring pressure plate; 23-1. Lower plane of pressure plate; 24. Screw G; 25. Vertical limit block; 25-1. Side of vertical limit block; 26. Spring A; 27. Pressure column; 27-1. Spring sleeve bar; 27-2. Anti-rotation surface; 27-3. Cylindrical surface; 27-4. Pressure column blade edge; 27-5. Welding point clearance groove; 27-6. Lower pressure plane; 27-7. Upper plane; 28. Oil-free guide sleeve pressure plate; 29. ​​Cylinder connecting block; 30. Screw H; 31. Spring B; 32. Screw I. Implementation

[0024] The invention will now be further described with reference to the accompanying drawings. Example:

[0025] See Figure 1 and Figure 2A bending fixture for attenuation plate leads of an isolator includes a base plate 1, a limiting block 2, a lower bending cutter 4, a left limiting block 6, an anti-drop platform 8, a right limiting block 9, an oil-free guide sleeve 10, an upper bending cutter 11, a sliding mounting plate 12, a linear guide rail 13, a guide cylinder 14, a vertical plate 17, a linear slider 18, a cylinder mounting plate 20, a cylinder 21, a spring pressure plate 23, a vertical limiting block 25, a spring A 26, a pressure column 27, an oil-free guide sleeve pressure plate 28, a cylinder connecting block 29, and a spring B 31. The lower end of the vertical plate 17 is fixedly connected to the base plate 1 by screw D16, and the upper end of the vertical plate 17 is fixedly connected to the cylinder mounting plate 20 by screw E19. The two ends of the curved blade 4 are fixedly connected to the left limiting block 6 and the right limiting block 9 respectively by screws A5. The screw through holes of the curved blade 4 are oblong through holes. During installation, the bending height can be changed by adjusting the height difference between the curved blade 4 and the upper surface of the base plate 1. The sliding mounting plate 12 is fixedly connected to the linear slider 18 by screw C15. The guide cylinder 14 is fixedly connected to the sliding mounting plate 12 by screw I32. The vertical limiting block 25 is fixedly connected to the guide cylinder 14 by screw F22. The spring pressure plate 23 is fixedly connected to the vertical limiting block 25 by screw G24. The linear guide rail 13 is fixedly connected to the upright plate 17 by screw H30. The assembly diagram of the components is as follows. Figure 7 , Figure 8 , Figure 9 As shown;

[0026] In this embodiment, the structure of the limiting block 2 is as follows: Figure 3 As shown, the component includes a guide and limiting rib 2-1, an attenuator positioning groove 2-2, a tweezers clearance groove 2-3, a pin support platform 2-4, and a spring sleeve hole 2-5. The guide and limiting rib 2-1 engages with the corresponding grooves of the left limiting block 6 and the right limiting block 9, providing guidance and limiting for the vertical movement of the limiting block 2, ensuring that its position does not shift left, right, forward, or backward. The attenuator positioning groove 2-2 matches the shape of the attenuator 3, used for precise positioning of the attenuator 3 on this component. The tweezers clearance groove 2-3 avoids the tweezers tip when gripping the attenuator 3. The pin... The support platform 2-4 is used to support the pin 3-2 of the attenuator 3. The pressure column blade 27-4 presses the pin 3-2 against the pin support platform 2-4 to prevent the pin 3-2 from being accidentally deformed during bending. The spring sleeve hole 2-5 is used to fit the spring B31 and position the spring B31. The other end of the spring B31 abuts against the upper surface of the base plate 1. This part has three identical attenuator accommodating positions, and three attenuator 3 can be operated at one time. During operation, this part is pressed down. When the external force is removed, the part returns to its original position with the attenuator 3 under the elastic force of the spring B31.

[0027] The structure of the right limiting block 9 is as follows: Figure 4As shown, it includes a guide positioning groove 9-1, a screw through hole 9-2, a threaded hole A9-3, and a limiting boss 9-4. The guide positioning groove 9-1 cooperates with the limiting rib 2-1 to provide limiting and guiding for the vertical movement of the limiting block 2. A screw B7 passes through the screw through hole 9-2 to fix the right limiting block 9 to the base plate 1. A screw A5 is installed in the threaded hole A9-3 to fix the lower bending blade 4 to the right limiting block 9. The limiting boss 9-4 is used to hook the limiting block 2 to prevent the spring force from popping the limiting block 2 out. The right limiting block 9 and the left limiting block 6 are symmetrical. The two cooperate to allow the limiting block 2 to slide only in the vertical direction, while fixing the lower bending blade 4. The lower bending blade 4 is machined with a waist-shaped hole, which can adjust its height to meet different bending heights.

[0028] The structure of the guide cylinder 14 is as follows: Figure 5 As shown, it includes a cylindrical hole 14-1, a threaded hole B14-2, a positioning rib 14-3, a positioning boss 14-4, and a threaded hole C14-5. The cylindrical hole 14-1 is used to install the oil-free guide sleeve 10; the threaded hole 14-2 is used to install screws to fix the oil-free guide sleeve pressure plate 28 and the vertical limiting block 25 onto the guide cylinder 14; the positioning rib 14-3 cooperates with the sliding mounting plate 12 to fix their left and right relative positions; the positioning boss 14-4 is used to position the upper bending blade 11; and the threaded hole C14-5 is used to install screws to fix the upper bending blade 11 and the guide cylinder 14 as a whole. The guide cylinder 14 is fixed to the sliding mounting plate 12 as a whole by screws I32.

[0029] The structure of the pressure column 27 is as follows: Figure 6 As shown, the device includes a spring sleeve 27-1, an anti-rotation surface 27-2, a cylindrical surface 27-3, a pressure column blade edge 27-4, a weld joint clearance groove 27-5, a lower pressure plane 27-6, and an upper plane 27-7. The spring sleeve 27-1 is used to mount the spring A26. The anti-rotation surface 27-2 engages with the side 25-1 of the vertical limiting block 25 to prevent the pressure column 27 from rotating around its axis. The cylindrical surface 27-3 is inserted into the inner circle of the oil-free guide sleeve 10, allowing the pressure column 27 to move only vertically. The pressure column blade edge 27-4, when moving downwards, presses against the attenuator pin 3-2. On the pin support platform 2-4; the solder joint clearance groove 27-5 is used to avoid the protruding solder joints at the end of the attenuator pins; the pressing plane 27-6 is used to transfer the force during pressing to the upper surface of the attenuator; as shown in Figure 9, the two ends of the spring A26 abut against the lower plane 23-1 and the upper plane 27-7 of the pressure plate respectively, and the pressure column 27 is compressed. When it moves downward under external force, the pressure column abuts against the attenuator, and the spring is further compressed. This structure can accommodate the height difference of the attenuator itself and the size difference of the three working positions of the tooling, ensuring that the pins 3-2 of each attenuator 3 are bent into place;

[0030] The bending process of the tooling of this invention is as follows:

[0031] Place the attenuator 3 at the corresponding position of the limit block 2. The cylinder moves downward, pushing the component connected to the sliding mounting plate 12 downward together. When the pressing plane 27-6 contacts the upper surface of the attenuator 3 (at this time, the pressing blade 27-4 also contacts the attenuator pin 3-2), the limit block 2 is pushed downward together. When the limit block 2 contacts the bottom plate 1, the cylinder continues to press down, and the spring A26 continues to be compressed. When the upper bending blade 11 presses against the attenuator pin and abuts against the lower bending blade 4, the downward movement ends. After holding the pressure for an appropriate time, the cylinder retracts, the spring resets, the attenuator 3 is removed, and the action ends.

[0032] The fixture in this embodiment contains two springs. Spring B31 is used to lift the attenuator 3 after bending, preventing the pin 3-2 of the attenuator 3 from sticking to the lower bending blade 4, making it easy to remove. Spring A26 is used for cushioning, preventing the pressure column 27 from hitting the attenuator 3, and also eliminating the height difference of the attenuator 3 itself and the dimensional difference of the three working positions of the fixture, ensuring that the pin 3-2 of each attenuator 3 is bent in place. The structures of the attenuator 3 before and after bending are as follows: Figure 10 and Figure 11 As shown, the attenuator includes solder bump 3-1 and pin 3-2, and has two bends 3-3 after bending.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixture for bending the pins of an isolator attenuator, characterized in that: Includes base plate (1), limit block (2), lower bending blade (4), left limit block (6), right limit block (9), upper bending blade (11), sliding mounting plate (12), linear guide rail (13), guide cylinder (14), vertical plate (17), linear slider (18), cylinder mounting plate (20), spring pressure plate (23), vertical limit block (25), spring A (26), pressure column (27), oil-free guide sleeve pressure plate (28) and spring B (31); The lower end of the upright plate (17) is fixedly connected to the base plate (1), and the upper end of the upright plate (17) is fixedly connected to the cylinder mounting plate (20). The two ends of the downward bending knife (4) are fixedly connected to the left limiting block (6) and the right limiting block (9) respectively. The left limiting block (6) and the right limiting block (9) are also fixedly connected to the base plate (1). An anti-drop platform (8) is also provided between the left limiting block (6) and the right limiting block (9). The sliding mounting plate (12) is fixedly connected to the linear slider (18), and the linear guide rail (13) is fixedly connected to the upright plate (17). Then the linear slider... Block (18) slides into the left and right V-grooves of linear guide rail (13) through the left and right steel balls and slides into the linear guide rail (13), so that the sliding mounting plate (12) can move up and down but cannot move left and right. The guide cylinder (14) is fixedly connected to the sliding mounting plate (12), and the upper bending knife (11) is also fixedly connected to the guide cylinder (14). The spring pressure plate (23) is fixedly connected to the vertical limiting block (25) through screw G (24). The vertical limiting block (25) is fixedly connected to the guide cylinder (14). An oil-free guide sleeve (10) is provided inside the guide cylinder (14). The limiting block (2) includes a guide and limiting rib (2-1), an attenuator positioning groove (2-2), a tweezers clearance groove (2-3), a pin support platform (2-4), and a spring sleeve hole (2-5). The guide and limiting rib (2-1) is matched with the grooves of the left limiting block (6) and the right limiting block (9). The shape of the attenuator positioning groove (2-2) matches the shape of the attenuator (3). The tweezers clearance groove (2-3) is used to avoid the tweezers tip when the tweezers pick up the attenuator (3). The pin support platform (2-4) is used to support the pin (3-2) of the attenuator (3). The spring sleeve hole (2-5) is used to fit the spring B (31) and position the spring B (31). The other end of the spring B (31) abuts against the upper surface of the base plate (1). The right limiting block (9) includes a guide positioning groove (9-1), a screw through hole (9-2), a threaded hole A (9-3), and a limiting boss (9-4). The guide positioning groove (9-1) cooperates with the guide and limiting rib (2-1). The screw through hole (9-2) passes through the screw B (7) to fix the right limiting block (9) to the base plate (1). The threaded hole A (9-3) is fitted with screw A (5) to fix the lower bending knife (4) to the right limiting block (9). The lower bending knife (4) is machined with a waist-shaped hole. During installation, the bending height can be changed by adjusting the height difference between the bending knife (4) and the upper surface of the base plate (1). The limiting boss (9-4) is used to hook the limiting block (2). The right limiting block (9) is symmetrical to the left limiting block (6). The guide cylinder (14) includes a cylindrical hole (14-1), a threaded hole B (14-2), a positioning rib (14-3), a positioning boss (14-4), and a threaded hole C (14-5). A screw is installed in the threaded hole C (14-5) to fix the upper bending blade (11) and the guide cylinder (14) into a whole. The guide cylinder (14) is fixed into a whole with the sliding mounting plate (12) by screw I (32). The cylindrical hole (14-1) is used to install the oil-free guide sleeve (10), and the threaded hole B (14-2) is used to install the screw (22) so as to fix the oil-free guide sleeve pressure plate (28) and the vertical limiting block (25) on the guide cylinder (14). The positioning rib (14-3) cooperates with the sliding mounting plate (12). The positioning boss (14-4) is used to position the upper bending blade (11). The pressure column (27) includes a spring sleeve (27-1), an anti-rotation surface (27-2), a cylindrical surface (27-3), a pressure column blade (27-4), a weld joint clearance groove (27-5), a lower pressure plane (27-6), and an upper plane (27-7). The spring sleeve (27-1) is used to fit the spring A (26). The anti-rotation surface (27-2) cooperates with the side of the vertical limiting block (25-1) of the vertical limiting block (25) to prevent the pressure column (27) from rotating around the axis. Rotate; the cylindrical surface (27-3) is inserted into the inner circle of the oil-free guide sleeve (10), so that the pressure column (27) can only move in a straight line up and down; the pressure column blade (27-4) presses the attenuator pin (3-2) against the pin support platform (2-4) when it moves down; the solder joint clearance groove (27-5) is used to avoid the solder joint (3-1) protruding at the end of the attenuator pin; the lower pressing plane (27-6) is used to press the upper surface of the attenuator (3), and the upper plane (27-7) is used to support the spring A (26).

2. The isolator attenuator pin bending fixture according to claim 1, characterized in that: The fixed connection is a screw connection.

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