Coil pin integrated stamping tool
By integrating the bending, shearing and punching processes into one unit through the integrated coil pin stamping fixture, the high cost and low efficiency problems caused by the separation of processes in the existing technology are solved, and high-efficiency and low-cost coil pin processing is achieved.
Patent Information
- Application Number
- CN202520283983.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the existing technology, the coil pin processing process requires the use of three separate stamping fixtures, resulting in high cost and low efficiency.
An integrated stamping fixture for coil pins was designed, which integrates bending, shearing and punching processes into one unit. The three processes can be completed in one go through components such as upper clamping plate, lower die, stripper plate and floating block.
The three-step processing of coil pins has been integrated, reducing labor and material costs, improving production efficiency, and requiring only one person to operate.
Smart Images
Figure CN223775873U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coil stamping equipment technical field especially relates to a coil pin integrated stamping frock. BACKGROUND
[0002] In the production of a flat coil product, the two ends of the coil need to be processed, and the processing procedure includes bending, shearing and punching. The bending refers to bending the higher pin of the flat coil to the same horizontal plane as the other pin. Then the two pins are sheared to the same angle, and then the two pins are punched. The prior art uses three separate stamping frocks to complete the above three processing steps. More frocks are used, and three people are needed to complete the processing. The cost is high, and the efficiency is low. SUMMARY
[0003] In view of the problem of high cost and low efficiency in the prior art scheme using three separate stamping frocks to complete bending, shearing and punching, the utility model provides a coil pin integrated stamping frock.
[0004] The utility model provides the following technical scheme: a coil pin integrated stamping frock, including upper clamping plate and lower mould, the upper clamping plate is provided with guide pillar, the guide pillar is connected with the stripper plate of sliding, and the upper clamping plate is provided with compression spring between the stripper plate, the lower mould is connected with the floating block of sliding, the floating block is provided with compression spring between the lower mould, still include:
[0005] Coil positioning unit, including setting on the positioning column of floating block and the convex part setting in lower mould side, the convex part is provided with first pin positioning groove and second pin positioning groove, the stripper plate is provided with the sliding groove of sliding connection with the positioning column, the stripper plate is provided with the recess of clearance cooperation with the convex part;
[0006] Bending unit, including setting in the sink of lower mould, setting in the bending punch of the bottom of stripper plate and setting in the two pressing blocks of recess, the sink is set in the second pin positioning groove side towards the floating block, the bending punch corresponds with the sink, two pressing blocks cross section respectively with first pin positioning groove, second pin positioning groove cross section cooperation;
[0007] Shearing unit, including setting in the shearing punch of the upper clamping plate side towards convex part;
[0008] Punching unit, including setting in the two punching punches of the upper clamping plate, the stripper plate, pressing block are all provided with the sliding groove of sliding connection with the punching punch, first pin positioning groove, second pin positioning groove are provided with the blanking groove of sliding connection with two punching punches respectively.
[0009] Preferably, the lower mold is provided with multiple guide pillars, and the upper clamping plate and the stripper plate are slidably connected to the guide pillars.
[0010] Preferably, the lower mold is provided with a guide groove that is slidably connected to the floating block, and the guide groove is connected to the settling tank.
[0011] Preferably, a gap is provided between the bending punch and the inner wall of the sinker on the side facing the second pin positioning groove, the height of the pressing block is less than the depth of the first pin positioning groove and the second pin positioning groove, the height of the protrusion is equal to the depth of the first pin positioning groove and the second pin positioning groove, and the depth of the groove is equal to the height of the pressing block.
[0012] Preferably, the lower mold is further provided with a waste trough that communicates with the feeding trough.
[0013] Preferably, the height of the punching punch from the upper surface of the lower die is greater than the height of the shearing punch from the upper surface of the lower die.
[0014] The beneficial effects of this utility model are: it integrates bending, shearing and punching units into one unit, and completes the three processes of bending, punching and shearing in one stamping. Only one person is needed for processing, which saves labor and material costs and improves efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of one embodiment of a stamping fixture.
[0016] Figure 2 This is a front view of one embodiment of a stamping fixture.
[0017] Figure 3 for Figure 2 AA cross-section view.
[0018] Figure 4 for Figure 2 BB cross-section.
[0019] Figure 5 for Figure 2 CC cross-section view.
[0020] Figure 6 for Figure 4 DD cross-section view.
[0021] Figure 7 for Figure 2 EE cross-section diagram.
[0022] Figure 8 This is a schematic diagram of the coil product after it has been processed using stamping fixtures.
[0023] 11, upper clamp plate; 12, stripper plate; 13, guide column; 21, lower die; 22, floating material block; 23, guide column; 24, guide groove; 31, positioning column; 32, protruding part; 33, first pin positioning groove; 34, second pin positioning groove; 35, recess; 41, sink; 42, bending punch; 43, pressing block; 51, shearing punch; 61, punching punch; 62, blanking groove; 63, waste groove; 70, coil; 71, first pin; 72, second pin. DETAILED DESCRIPTION
[0024] The embodiments of the present application will be described in more detail with reference to the drawings and the accompanying reference numerals, so that those skilled in the art can implement the present application after reading the specification. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.
[0025] The present application provides a coil pin integrated stamping tool as shown in Figures 1-7 , which comprises an upper clamp plate 11, a stripper plate 12, a lower die 21, a floating material block 22, and a coil positioning unit, a bending unit, a shearing unit, and a punching unit. The bending, shearing, and punching of the coil pin are integrated into one process, and the bending, punching, and shearing are completed in one stamping process.
[0026] The upper clamp plate 11, the stripper plate 12, the lower die 21, and the floating material block 22 can refer to related technologies. In the present embodiment, please refer to Figure 6 . The upper clamp plate 11 is provided with a plurality of guide columns 13, and the stripper plate 12 is slidably connected with the guide columns 13 and can move relative to the upper clamp plate 11 in the axial direction of the guide columns 13. A compression spring is further arranged between the stripper plate 12 and the upper clamp plate 11. Under the action of the compression spring, the stripper plate 12 pre-presses the coil during stamping, and after stamping, the stripper plate 12 is separated from the coil by the punching punch 61, preventing the waste material from being taken out. The upper clamp plate 11 is further provided with a positioning column connected with the upper die holder of the stamping machine.
[0027] Please refer to Figure 3 . The lower die 21 is provided with a guide groove 24, and the floating material block 22 is slidably connected in the guide groove 24. A compression spring is further arranged between the floating material block 22 and the lower die 21. When the compression spring is reset, the top end of the floating material block 22 protrudes out of the lower die 21, facilitating the placement of the coil. During stamping, the stripper plate 12 forces the floating material block 22 to move downward, and the main body of the coil 70 is pressed into the guide groove 24, facilitating the stamping of the two pins. The lower die 21 is provided with a plurality of guide columns 23, and the upper clamp plate 11 and the stripper plate 12 are slidably connected with the guide columns 23, facilitating the positioning of stamping.
[0028] Please refer to Figure 2 , 3, the coil positioning unit comprises a positioning column 31 arranged on the floating material block 22 and a protrusion 32 arranged on one side of the lower die 21, the protrusion 32 is provided with a first pin positioning groove 33 and a second pin positioning groove 34; the stripper plate 12 is provided with a sliding groove in sliding connection with the positioning column 31, and the stripper plate 12 is provided with a groove 35 in clearance fit with the protrusion 32. The positioning column 31 is in clearance fit with the central hole of the coil, and the diameter of the positioning column 31 is smaller than that of the floating material block, so as to form a stepped support structure for placing the coil with the floating material block. The first pin positioning groove 33 and the second pin positioning groove 34 are respectively in clearance fit with the two pins of the coil, and the depths of the first pin positioning groove 33 and the second pin positioning groove 34 are the same. When the coil 70 to be processed is placed, the coil 70 is inserted on the positioning column 31, the first pin 71 is placed in the first pin positioning groove 33, the second pin 72 is placed in the second pin positioning groove 34, and the height of the first pin 71 is higher than that of the second pin 72. Further, the height H1 of the protrusion is greater than the depth H2 of the groove, and the difference between H1 and H2 is the thickness of the two pins of the coil, and generally the thicknesses of the two pins of the coil are equal.
[0029] Please refer to Figure 4 , 5 , the bending unit comprises a sinking groove 41 arranged on the lower die 21, a bending punch 42 arranged on the bottom of the stripper plate 12 and two pressing blocks 43 arranged on the groove 35. The sinking groove 41 is arranged on the side of the second pin positioning groove 34 facing the floating material block 22, and the sinking groove 41 is in communication with the guide groove 24, which is used to accommodate the second pin 72 with lower height of the coil when the coil is lowered by the stripper plate to complete the bending, and a gap is arranged between the bending punch 42 and the inner wall of the sinking groove 41 on the side facing the second pin positioning groove 34, so as to accommodate the second pin 72. The bending punch 42 corresponds to the sinking groove 41, and the cross-sectional shape of the bending punch 42 is also similar to that of the sinking groove 41, so as to increase the contact area with the pin. The cross sections of the two pressing blocks 43 are matched with the cross sections of the first pin positioning groove 33 and the second pin positioning groove 34 respectively, and the height H3 of the pressing block 43 is smaller than the depth H4 of the first pin positioning groove 33 and the second pin positioning groove 34, and the difference between H3 and H4 is the thickness of the two pins of the coil, and the two pressing blocks 43 press the two pins of the coil and the bottom surfaces of the first pin groove and the second pin groove respectively during stamping. Generally, the height H3 of the pressing block 43 is equal to the depth H2 of the groove, and the depth H4 of the first pin positioning groove 33 and the second pin positioning groove 34 is equal to the height H1 of the protrusion. During stamping, the bending punch 42 first contacts the second pin 72, presses the part of the second pin 72 close to the main body of the coil 70 into the sinking groove 41, cooperates with the lower die 21 and the pressing block 43, and stamps the second pin 72 into a Z-shaped form, as shown in Figure 8 .
[0030] Please refer to Figure 6 , 7, the punching unit includes two punching punches 61 arranged on the upper clamping plate 11, and the upper clamping plate is connected to the upper die holder during stamping, and the upper die holder fixes the two punching punches 61 at the top. In the embodiment, the punching punch 61 is rectangular in cross section. The stripper plate 12 and the pressing block 43 are both provided with a sliding groove in sliding connection with the punching punch 61, and the length of the punching punch 61 is generally greater than the total thickness of the stripper plate and the pin. The first pin positioning groove 33 and the second pin positioning groove 34 are respectively provided with a blanking groove 62 in sliding connection with the two punching punches 61. During stamping, the two pressing blocks 43 respectively press the two pins against the bottom surfaces of the first and second pin positioning grooves, and the punching punch 61 further descends on the two pins to punch out a square hole, as shown in Figure 8 The lower die 21 is also provided with a waste groove 63 in communication with the blanking groove 62, and the waste groove 63 is located at the bottom of the blanking groove 62, facilitating the removal of punching waste.
[0031] Please refer to Figure 3 The shearing unit includes a shearing punch 51 arranged on the side of the upper clamping plate 11 facing the protruding portion 32. The shearing punch 51 is generally in contact with the side surface of the stripper plate 12 and the lower die 21, and the end thereof is generally a blade edge, and the length thereof is generally greater than the total thickness of the stripper plate and the pin. During stamping, the two pins of the coil are pressed by the two pressing blocks 43, and the shearing punch 51 shears off the part of the two pins protruding from the lower die 21, so that the two pins are aligned. Preferably, the height of the punching punch 61 from the upper surface of the lower die 21 is greater than the height of the shearing punch 51 from the upper surface of the lower die 21, so that the punching is completed before the shearing.
[0032] The above is one or more embodiments of the present application, which is described in more detail and in more detail, but cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.
Claims
1. A coil pin integrated stamping fixture, comprising an upper clamping plate and a lower die, wherein the upper clamping plate is provided with a guide post, the guide post is slidably connected to a stripper plate, and a compression spring is provided between the upper clamping plate and the stripper plate; the lower die is slidably connected to a float block, and a compression spring is provided between the float block and the lower die, characterized in that... Also includes: The coil positioning unit includes a positioning post disposed on the floating block and a protrusion disposed on one side of the lower die. The protrusion is provided with a first pin positioning groove and a second pin positioning groove. The stripper plate is provided with a sliding groove that is slidably connected to the positioning post, and the stripper plate is provided with a groove that is clearance-fitted with the protrusion. The bending unit includes a sink groove disposed on the lower die, a bending punch disposed on the bottom of the stripper plate, and two pressure blocks disposed on the groove. The sink groove is disposed on the side of the second pin positioning groove facing the floating block. The bending punch corresponds to the sink groove. The cross sections of the two pressure blocks respectively cooperate with the cross sections of the first pin positioning groove and the second pin positioning groove. The shearing unit includes a shearing punch disposed on the side of the upper clamping plate facing the protrusion; The punching unit includes two punches disposed on the upper clamping plate. The stripping plate and the pressure block are both provided with sliding grooves that are slidably connected to the punches. The first pin positioning groove and the second pin positioning groove are respectively provided with unloading grooves that are slidably connected to the two punches.
2. The coil pin integrated stamping fixture according to claim 1, characterized in that, The lower mold is provided with multiple guide pillars, and the upper clamping plate and stripper plate are slidably connected to the guide pillars.
3. The coil pin integrated stamping fixture according to claim 1, characterized in that, The lower mold is provided with a guide groove that is slidably connected to the floating block, and the guide groove is connected to the settling tank.
4. The coil pin integrated stamping fixture according to claim 1, characterized in that, A gap is provided between the bending punch and the inner wall of the sinker on the side facing the second pin positioning groove. The height of the pressing block is less than the depth of the first pin positioning groove and the second pin positioning groove. The height of the protrusion is equal to the depth of the first pin positioning groove and the second pin positioning groove. The depth of the groove is equal to the height of the pressing block.
5. The coil pin integrated stamping fixture according to claim 1, characterized in that, The lower mold is also provided with a waste material trough that communicates with the material discharge trough.
6. The coil pin integrated stamping fixture according to claim 1, characterized in that, The height of the punching punch from the upper surface of the lower die is greater than the height of the shearing punch from the upper surface of the lower die.