Neckdown clamp die

Abstract

The application belongs to the technical field of production and processing, in particular to a necking clamp die, which comprises a workbench, a fixing device and a necking device, the fixing device is fixedly connected to the upper surface of the workbench, the number of the necking devices is set to two groups, the two groups of necking devices are respectively arranged on the left and right sides of the workbench, the workbench is slidably connected with the necking device, the necking device comprises a cylinder, a necking die, a mounting seat, a sliding rod, a positioning block and a spring one, one side of the mounting seat close to the middle of the workbench is fixedly connected with the sliding rod, and one end of the sliding rod away from the mounting seat is fixedly connected with the positioning block; the application adopts the cooperation of the fixing mechanism and the die locking assembly, so that when the die cannot be stably clamped, even if the cylinder is started, the necking die cannot perform necking operation on the connecting rod, but will move together with the cylinder away from the die, thereby preventing necking under unstable clamping condition and causing damage to the connecting rod.

Description

Technical Field

[0001] This application belongs to the field of production and processing technology, specifically a necking clamping mold. Background Technology

[0002] The angle adjuster linkage is a key component in the angle adjuster used to connect the adjustment mechanisms on both sides and realize synchronous adjustment of the backrest angle. It transmits the adjustment action of one side to the other side through mechanical linkage.

[0003] During the production of the angle adjuster linkage, it is often necessary to reduce the end diameters at both ends. However, since the shape of the current angle adjuster linkage is often irregular, that is, the middle part is cylindrical with irregular protrusions, the edges are flat, and there is a gradient area between the flat and cylindrical areas, it is often difficult to ensure good clamping of the middle area when reducing the end diameters. If the middle area of ​​the angle adjuster linkage is not properly clamped, the entire angle adjuster linkage will easily deform, rather than the end diameters being reduced. Therefore, it is necessary to design a reduction clamping mold to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of the existing technology by using a fixing mechanism to fix the angle adjuster connecting rod and then using a narrowing device to narrow its end. This design provides a narrowing clamping mold, which solves the problem that the angle adjuster connecting rod is prone to deformation when the middle part is not well clamped.

[0005] To achieve the above objectives, the following technical solution is adopted: A necking clamping mold includes a worktable, a fixing device, and necking devices. The fixing device is fixedly connected to the upper surface of the worktable. The number of necking devices is set to two sets, and the two sets of necking devices are respectively arranged on the left and right sides of the worktable. The worktable and the necking devices are slidably connected.

[0006] Preferably, the necking device includes a cylinder, a necking mold, a mounting base, a slide rod, a positioning block, a spring, and a mold locking assembly. The mounting base is fixedly connected to the slide rod on the side near the center of the worktable, and the end of the slide rod away from the mounting base is fixedly connected to the positioning block. Sliding grooves are provided on the left and right sides of the worktable. The outer wall of the positioning block is slidably connected to the inner wall of the sliding groove. The side of the positioning block away from the center of the worktable is elastically connected to the inner wall of the sliding groove by a spring. The lower side of the cylinder is fixedly connected to the upper surface of the mounting base. The output shaft of the cylinder is fixedly connected to the side of the necking mold away from the center of the worktable. A necking groove is provided on the side of the necking mold near the center of the worktable. The mold locking assembly is disposed inside the worktable and below the necking mold. The actuating end of the mold locking assembly controls the necking mold.

[0007] Preferably, the fixing device includes a lower fixing seat, an upper fixing seat, a bracket, and an electric push rod. The lower surface of the lower fixing seat is fixedly connected to the upper surface of the workbench. The upper fixing seat is positioned directly above the lower fixing seat. The bracket is L-shaped, with its lower side fixedly connected to the upper surface of the workbench. The upper surface of the electric push rod is fixedly connected to the lower surface of the bracket.

[0008] Preferably, the mold locking assembly includes a slide groove, a slide plate, a locking block, a pressure block, and a second spring. The slide groove is formed on the inner wall of the worktable. The outer wall of the slide plate is slidably connected to the inner wall of the slide groove. The upper surface of the slide plate is fixedly connected to the lower surface of the locking block. The lower surface of the reducing mold has a locking groove. The upper surface of the slide plate is fixedly connected to the lower surface of the pressure block. The lower surface of the slide plate is elastically connected to the inner wall of the slide groove by the second spring. The second spring is located directly below the pressure block.

[0009] Preferably, the inner side of the upper fixing seat and the upper part of the positioning block are provided with an anti-deviation component.

[0010] Preferably, the anti-deviation component includes a slot, a pressure chamber, a piston plate, a counterweight, and a control bar. The slot is formed on the inner wall of the positioning block, and the upper end of the slot extends outside the positioning block. The pressure chamber is formed on the inner wall of the upper fixed seat. The outer wall of the piston plate is piston-connected to the inner wall of the pressure chamber. The lower surface of the piston plate is fixedly connected to the upper surface of the counterweight. The inner wall of the pressure chamber is piston-connected to the outer wall of the control bar.

[0011] Preferably, the lower fixing seat and the upper fixing seat are provided with a directional component on their outer sides.

[0012] Preferably, the orientation component includes a fixing block, an orientation rod, and an orientation block. The rear side of the fixing block is fixedly connected to the front surface of the lower fixing seat. The inner wall of the lower fixing seat is through and fixedly connected to the outer circumferential surface of the orientation rod. The rear surface of the orientation block is fixedly connected to the front surface of the upper fixing seat. The inner wall of the orientation block is provided with an orientation groove that runs vertically through, and the orientation rod is disposed in the orientation groove.

[0013] Preferably, the inner wall of the worktable above the sliding groove has a through groove, the upper end of the through groove extends outside the worktable, and the projection shape of the control bar on the upper surface of the worktable is consistent with the shape of the through groove.

[0014] Preferably, the counterweight is positioned directly above the pressure block.

[0015] Compared with the prior art, the beneficial effects of this application are: 1. This application adopts a fixed mechanism to ensure that when the mold fails to clamp stably, even if the cylinder is activated, the shrinking mold cannot shrink the connecting rod. Instead, it will move away from the mold along with the cylinder, thus preventing the connecting rod from being damaged due to shrinking when it is not clamped stably.

[0016] 2. This application adopts an anti-deviation component to ensure that the control bar can enter the slot after the upper and lower fixed seats fully clamp the middle of the connecting rod, thereby positioning the positioning block and preventing the cylinder from shifting during the normal shrinking process, which would affect the shrinking effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a cross-sectional schematic diagram of the necking die in this application; Figure 3 This is a cross-sectional schematic diagram of the entire application; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the location of the mold locking assembly in this application; Figure 6 This is a partial schematic diagram of the workbench and its internal structure in this application; Figure 7 This is a cross-sectional schematic diagram showing the location of the anti-deviation component in this application; Figure 8 for Figure 7 Enlarged view of section B in the middle.

[0018] The components include: 1. Workbench; 11. Through slot; 2. Fixing device; 3. Narrowing device; 4. Mold locking assembly; 5. Anti-deviation assembly; 6. Orientation assembly; 31. Cylinder; 32. Narrowing mold; 33. Mounting base; 34. Slide rod; 35. Positioning block; 36. Spring 1; 37. Sliding groove; 38. Narrowing groove; 21. Lower fixed base; 22. Upper fixed base; 23. Bracket; 24. Electric push rod; 41. Slide groove; 42. Slide plate; 43. Locking block; 44. Pressure block; 45. Spring 2; 46. Locking groove; 51. Slot; 52. Air chamber; 53. Piston plate; 54. Counterweight; 55. Control bar; 61. Fixing block; 62. Orientation rod; 63. Orientation block; 64. Orientation groove. Detailed Implementation

[0019] Reference Figure 1 - Figure 8A type of clamping mold includes a worktable 1, a fixing device 2, and a clamping device 3. The fixing device 2 is fixedly connected to the upper surface of the worktable 1 and is used to fix the angle adjuster connecting rod to ensure that its end will not be displaced during the clamping operation, thereby preventing damage. The clamping device 3 is set to two sets, which are respectively set on the left and right sides of the worktable 1. The clamping device 3 is used to clamp the end of the angle adjuster connecting rod. The worktable 1 is slidably connected to the clamping device 3.

[0020] In this embodiment, when in use, the middle part of the angle adjuster connecting rod is first fixed by the fixing device 2. After the fixing is completed, the end of the angle adjuster connecting rod is narrowed by the narrowing device 3.

[0021] As a preferred embodiment, the necking device 3 includes a cylinder 31, a necking mold 32, a mounting base 33, a slide rod 34, a positioning block 35, a spring 36, and a mold locking assembly 4. The mounting base 33 is fixedly connected to the slide rod 34 near the center of the worktable 1. The slide rod 34 is cylindrical. The end of the slide rod 34 away from the mounting base 33 is fixedly connected to the positioning block 35. Sliding grooves 37 are provided on the left and right sides of the worktable 1. The outer wall of the positioning block 35 is slidably connected to the inner wall of the sliding groove 37. The positioning block 35 is cylindrical, and its edge is provided with a rectangular protrusion. The rectangular protrusion ensures that the positioning block 35 can only slide within the sliding groove. The sliding block 35 slides left and right within the sliding groove 37 but cannot rotate. The side of the positioning block 35 furthest from the center of the worktable 1 is elastically connected to the inner wall of the sliding groove 37 via a spring 36. One end of the spring 36 is fixedly connected to the side of the positioning block 35 furthest from the center of the worktable 1, and the other end is fixedly connected to the inner wall of the sliding groove 37. The lower side of the cylinder 31 is fixedly connected to the upper surface of the mounting base 33. The output shaft of the cylinder 31 is fixedly connected to the side of the reducing mold 32 furthest from the center of the worktable 1. The reducing mold 32 has a reducing groove 38 on the side closest to the center of the worktable 1. The shape and size of the reducing groove 38 on the side closest to the center of the worktable 1 are exactly the same as the end shape and size of the angle adjuster connecting rod. The shape of the narrowing groove 38, located away from the center of the worktable 1, is the same as but smaller than the end of the angle adjuster connecting rod. The middle of the narrowing groove 38 is a gradient area on both sides, used to slowly narrow the end of the angle adjuster connecting rod. The mold locking assembly 4 is located inside the worktable 1 and below the narrowing mold 32. The actuator of the mold locking assembly 4 controls the connection to the narrowing mold 32. The mold locking assembly 4 is used to lock the narrowing mold 32, ensuring that it cannot move towards the connecting rod when the angle adjuster connecting rod is not clamped, and ensuring that the connecting rod will not be damaged during the narrowing process due to lack of fixation. In use, when the fixing device 2 completely fixes the angle adjuster... After the connecting rod reaches the middle, the mold locking assembly 4 is released from its limit. At this time, the cylinder 31 is activated, which pushes the reducing mold 32 to move towards the side closer to the angle adjuster connecting rod. Through the contact between the inner wall of the reducing groove 38 and the outer wall of the connecting rod end, the end of the connecting rod is reduced in diameter. If the middle of the angle adjuster connecting rod is not fixed, the mold locking assembly 4 locks the reducing mold 32. Therefore, when the output shaft of the cylinder 31 pushes the reducing mold 32, the reducing mold 32 cannot move, so the mounting base 33 moves away from the reducing mold 32. Thus, the reducing mold 32 will not squeeze the connecting rod, and the equipment will not be damaged due to the movement of the output shaft of the cylinder 31.

[0022] As a preferred embodiment, the fixing device 2 includes a lower fixing seat 21, an upper fixing seat 22, a bracket 23, and an electric push rod 24. The lower surface of the lower fixing seat 21 is fixedly connected to the upper surface of the workbench 1. The upper fixing seat 22 and the lower fixing seat 21 are used to fix the middle part of the angle adjuster connecting rod. The lower surface of the upper fixing seat 22 and the lower fixing seat 21 are both provided with a groove that matches the shape of the middle part of the connecting rod. The upper fixing seat 22 is positioned directly above the lower fixing seat 21. By clamping the angle adjuster connecting rod together with the upper fixing seat 22 and the lower fixing seat 21, the middle part of the angle adjuster connecting rod is fixed. The bracket 23 is L-shaped, and the lower side of the bracket 23 is connected to the upper surface of the workbench 1. The upper surface of the platform 1 is fixedly connected, and the upper surface of the electric push rod 24 is fixedly connected to the lower surface of the bracket 23. The electric push rod 24 pushes the upper fixed seat 22 to move downward, thereby clamping the angle adjuster connecting rod placed in the groove inside the lower fixed seat 21. In use, the angle adjuster is first placed in the groove above the lower fixed seat 21, and then the electric push rod 24 is activated, so that the electric push rod 24 drives the upper fixed seat 22 to move downward until the upper fixed seat 22 and the lower fixed seat 21 fix the middle area of ​​the angle adjuster connecting rod together. At the same time, during the downward movement of the upper fixed seat 22, the limiting of the mold locking component 4 on the shrinking mold 32 can also be released.

[0023] As a preferred embodiment, the mold locking assembly 4 includes a slide 41, a slide plate 42, a locking block 43, a pressure block 44, and a second spring 45. The slide 41 is formed on the inner wall of the worktable 1. The outer wall of the slide plate 42 is slidably connected to the inner wall of the slide 41. The slide plate 42 slides up and down relative to the worktable 1. The upper surface of the slide plate 42 is fixedly connected to the lower surface of the locking block 43. The lower surface of the reducing mold 32 is provided with a locking groove 46. The upper surface of the slide plate 42 is fixedly connected to the lower surface of the pressure block 44. The projection shape of the locking groove 46 on the upper surface of the slide plate 42 is completely consistent with the projection shape of the pressure block 44 on the upper surface of the slide plate 42. The lower surface of the slide plate 42 is elastically connected to the inner wall of the slide 41 by the second spring 45. One end of the second spring 45 is fixedly connected to the lower surface of the slide plate 42, and the other end of the second spring 45 is fixedly connected to the inner wall of the slide 41. The second spring 45 is located directly below the pressure block 44.

[0024] As a preferred embodiment, the inner side of the upper fixed base 22 and the upper part of the positioning block 35 are provided with an anti-deviation component 5, which is used to prevent the shrinking mold 32 from shifting position during the shrinking process.

[0025] As a preferred embodiment, the anti-deviation component 5 includes a slot 51, a pressure chamber 52, a piston plate 53, a counterweight 54, and a control strip 55. The slot 51 is formed on the inner wall of the positioning block 35, and its cross-sectional shape is trapezoidal, with the upper base longer than the lower base. The upper end of the slot 51 extends beyond the positioning block 35. The pressure chamber 52 is formed on the inner wall of the upper fixed seat 22. The outer wall of the piston plate 53 is piston-connected to the inner wall of the pressure chamber 52, and the lower surface of the piston plate 53 is fixedly connected to the upper surface of the counterweight 54. The counterweight 54 ensures that when the lower side of the counterweight 54 is not under force, the piston plate 53 can be positioned at the lowest point of the pressure chamber 52 under the weight of the counterweight 54. The inner wall of the pressure chamber 52 is piston-connected to the outer wall of the control strip 55. When the upper fixed seat 22 moves downwards... After contacting the upper surface of the lower fixed seat 21, the counterweight 54 and the pressure block 44 press against each other. After being pressed, the pressure block 44 drives the slide plate 42 to move downward, which causes the locking block 43 to also move downward and leave the locking groove 46. After being stressed, the counterweight 54 pushes the piston plate 53 to move upward, which increases the air pressure inside the air chamber 52. This causes the control bar 55 to move downward under the action of air pressure and enter the slot 51. Since the control bar 55 moves downward after entering the slot 51, it will push the inclined surface of the slot 51. Therefore, it can ensure that when the necking device 3 is started, the position displacement of the slide rod 34 and the positioning block 35 is guaranteed. When the connecting rod is pressed, the positioning block 35 cannot move laterally, ensuring that the necking effect is not affected by the slide rod 34 relative to the worktable 1 after the necking device 3 is started.

[0026] As a preferred embodiment, the lower fixed base 21 and the upper fixed base 22 are provided with a directional component 6 on their outer sides. The directional component 6 is used to ensure that when the upper fixed base 22 moves up and down relative to the lower fixed base 21, it will not cause horizontal displacement due to the movement.

[0027] As a preferred embodiment, the orientation component 6 includes a fixing block 61, an orientation rod 62, and an orientation block 63. The rear side of the fixing block 61 is fixedly connected to the front surface of the lower fixing seat 21. The inner wall of the lower fixing seat 21 is through and fixedly connected to the outer circumferential surface of the orientation rod 62. The rear surface of the orientation block 63 is fixedly connected to the front surface of the upper fixing seat 22. The inner wall of the orientation block 63 is provided with an orientation groove 64 that runs vertically through. The orientation rod 62 is disposed in the orientation groove 64. Since the orientation rod 62 is always within the orientation groove 64 during vertical movement, it cannot produce horizontal displacement relative to the orientation block 63. Therefore, there will be no horizontal deviation between the upper fixing seat 22 and the lower fixing seat 21.

[0028] As a preferred embodiment, the inner wall of the worktable 1 above the slide 41 is provided with a through groove 11. The through groove 11 ensures that the control bar 55 can pass through the worktable 1 and enter the slot 51. The upper end of the through groove 11 extends to the outside of the worktable 1, and the projection shape of the control bar 55 on the upper surface of the worktable 1 is consistent with the shape of the through groove 11.

[0029] As a preferred method, the counterweight 54 is positioned directly above the pressure block 44. By setting the positions of the counterweight 54 and the pressure block 44, it is ensured that the counterweight 54 and the pressure block 44 can press against each other after the connecting rod is fully clamped by the upper fixed seat 22 and the lower fixed seat 21, so as to achieve the desired effect.

Claims

1. A constriction clamping mold, characterized in that, It includes a workbench (1), a fixing device (2) and a narrowing device (3). The fixing device (2) is fixedly connected to the upper surface of the workbench (1). The number of narrowing devices (3) is set to two sets. The two sets of narrowing devices (3) are respectively set on the left and right sides of the workbench (1). The workbench (1) and the narrowing device (3) are slidably connected.

2. The necking clamping mold according to claim 1, characterized in that: The necking device (3) includes a cylinder (31), a necking mold (32), a mounting base (33), a slide rod (34), a positioning block (35), a spring (36), and a mold locking assembly (4). The mounting base (33) is fixedly connected to the slide rod (34) on one side near the center of the workbench (1). The end of the slide rod (34) away from the mounting base (33) is fixedly connected to the positioning block (35). Sliding grooves (37) are provided on the left and right sides of the workbench (1). The outer wall of the positioning block (35) is slidably connected to the inner wall of the sliding groove (37). The positioning block (35) is located away from the inner wall of the sliding groove (37). One side of the middle part of the workbench (1) is elastically connected to the inner wall of the sliding groove (37) by a spring (36). The lower side of the cylinder (31) is fixedly connected to the upper surface of the mounting base (33). The output shaft of the cylinder (31) is fixedly connected to the side of the shrunk die (32) away from the middle part of the workbench (1). The shrunk die (32) has a shrunk groove (38) on the side near the middle part of the workbench (1). The mold locking assembly (4) is set inside the workbench (1) and below the shrunk die (32). The execution end of the mold locking assembly (4) controls the connection of the shrunk die (32).

3. A constriction clamping mold according to claim 2, characterized in that: The fixing device (2) includes a lower fixing seat (21), an upper fixing seat (22), a bracket (23), and an electric push rod (24). The lower surface of the lower fixing seat (21) is fixedly connected to the upper surface of the workbench (1). The upper fixing seat (22) is located directly above the lower fixing seat (21). The bracket (23) is L-shaped. The lower side of the bracket (23) is fixedly connected to the upper surface of the workbench (1). The upper surface of the electric push rod (24) is fixedly connected to the lower surface of the bracket (23).

4. A constriction clamping mold according to claim 3, characterized in that: The mold locking assembly (4) includes a slide groove (41), a slide plate (42), a locking block (43), a pressure block (44), and a second spring (45). The slide groove (41) is opened on the inner wall of the workbench (1). The outer wall of the slide plate (42) is slidably connected to the inner wall of the slide groove (41). The upper surface of the slide plate (42) is fixedly connected to the lower surface of the locking block (43). The lower surface of the shrinking mold (32) is provided with a locking groove (46). The upper surface of the slide plate (42) is fixedly connected to the lower surface of the pressure block (44). The lower surface of the slide plate (42) is elastically connected to the inner wall of the slide groove (41) through the second spring (45). The second spring (45) is located directly below the pressure block (44).

5. A necking clamping mold according to claim 4, characterized in that: An anti-deviation component (5) is provided on the inner side of the upper fixing seat (22) and the upper part of the positioning block (35).

6. A necking clamping mold according to claim 5, characterized in that: The anti-deviation component (5) includes a slot (51), a pressure chamber (52), a piston plate (53), a counterweight (54), and a control bar (55). The slot (51) is opened on the inner wall of the positioning block (35), and the upper end of the slot (51) extends to the outside of the positioning block (35). The pressure chamber (52) is opened on the inner wall of the upper fixed seat (22). The outer wall of the piston plate (53) is piston-connected to the inner wall of the pressure chamber (52). The lower surface of the piston plate (53) is fixedly connected to the upper surface of the counterweight (54). The inner wall of the pressure chamber (52) is piston-connected to the outer wall of the control bar (55).

7. A constriction clamping mold according to claim 3, characterized in that: The lower fixing seat (21) and the upper fixing seat (22) are both provided with a directional component (6) on their outer sides.

8. A constriction clamping mold according to claim 7, characterized in that: The orientation component (6) includes a fixing block (61), an orientation rod (62), and an orientation block (63). The rear side of the fixing block (61) is fixedly connected to the front surface of the lower fixing seat (21). The inner wall of the lower fixing seat (21) is through and fixedly connected to the outer circumferential surface of the orientation rod (62). The rear surface of the orientation block (63) is fixedly connected to the front surface of the upper fixing seat (22). The inner wall of the orientation block (63) is provided with an orientation groove (64) that runs vertically through. The orientation rod (62) is disposed in the orientation groove (64).

9. A constriction clamping mold according to claim 6, characterized in that: The inner wall of the workbench (1) above the sliding groove (37) is provided with a through groove (11), the upper end of the through groove (11) extends to the outside of the workbench (1), and the projection shape of the control bar (55) on the upper surface of the workbench (1) is consistent with the shape of the through groove (11).

10. A constriction clamping mold according to claim 6, characterized in that: The counterweight (54) is located directly above the pressure block (44).

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