Stamping die for connecting hole at end part of automobile traction bracket
By adopting a central positioning structure and an end support structure in the end connection hole stamping mold of the vehicle traction bracket, the problem of poor punching quality in the prior art is solved, and higher punching quality and service life are achieved.
Patent Information
- Application Number
- CN202420142423.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-01-19
AI Technical Summary
In the prior art, the punching quality of the end connection holes of the automobile traction bracket is poor, which affects the service life.
A stamping mold for end connection holes of automobile traction brackets is designed, using a central positioning structure and end support structure to achieve three-point stable support and limit of the traction brackets to ensure the accuracy of punching position.
Through multi-directional support limits, the traction bracket is prevented from moving or deflecting during the punching process, which significantly improves the punching quality.
Smart Images
Figure CN222607728U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of automobile parts processing equipment, and in particular relates to a stamping die for a connecting hole at the end of an automobile traction bracket. Background Art
[0002] The triangular bracket is one of the important components of the vehicle traction system. When processing the center hole of the bracket, the commonly used tooling adopts a three-point fixing method, that is, the three vertices of the bracket are clamped and fixed. However, the applicant found in the subsequent use of the product that the quality of the connecting holes at both ends of the bracket directly affects the balance of the traction force. Specifically, it refers to whether the connecting holes are facing the same side, facing both ends, and whether the axial direction is perpendicular to the wall thickness. Therefore, this requires better punching quality, and the existing punching molds basically adopt a left and right two-point fixing method, which is difficult to meet the high-quality punching needs. Utility Model Content
[0003] In view of this, the utility model provides a stamping die for the connection hole at the end of an automobile traction bracket to solve the problem in the prior art that the punching quality of the connection hole at the end of the bracket is poor, which affects the service life.
[0004] The technical solution is as follows:
[0005] A stamping die for an end connection hole of an automobile traction bracket, the bracket comprising a main body, the main body having a middle arc top, and two fixing parts respectively located at two symmetrical ends of the arc top, the middle arc top having a center hole, the key point of which is that the stamping die comprises an upper die base and a lower die base, the upper die base and the lower die base having a mutually matching guiding structure, wherein the lower die base has a center positioning structure, the center positioning structure has symmetrically arranged end support structures on both sides, the center positioning structure comprises a support, and a positioning rod movably supported on the support, the positioning rod is adapted to the center hole, and has a step surface abutting against the middle arc top, and the end support structure is used to horizontally support the fixing part.
[0006] By adopting the above scheme, a center positioning structure and an end support structure are set at the same time to achieve three-point stable support for the traction bracket, and at the same time limit the width and length directions to prevent deviation, thereby ensuring the accuracy of the punching position and greatly improving the punching quality.
[0007] Preferably, the support has a vertically arranged slide groove, the slide groove has a slider that slides with the slide groove, the positioning rod is fixedly connected to the slider, and the axial direction of the positioning rod is perpendicular to the length direction of the slide groove. The above scheme is adopted to facilitate the adjustment of the height of the positioning rod as needed to meet the support and positioning requirements of different types of brackets.
[0008] As a preferred embodiment, the lower end and the left and right sides of the notch are open. The above solution is convenient for installing and fixing the pressing arm, which is beneficial to improving assembly efficiency.
[0009] Preferably, a detachably mounted adjustment block is provided between the slider and the support, and the adjustment block is used to adjust the height of the slider. The slider is supported by the adjustment block without locking the slider, which has a simple structure and is easy to implement.
[0010] Preferably, the end support structure comprises a boss, and a pad, a support plate and a guide plate arranged on the boss from bottom to top, wherein a notch is provided between the support plate and the guide plate for the fixing part to extend into;
[0011] The upper die seat is provided with a punch, and the support plate and the guide plate are provided with guide holes corresponding to the punches. The above scheme is adopted, and the support plate is mainly used to realize horizontal support of the bracket to prevent deflection.
[0012] Preferably, the boss has an inclined waste channel, and the guide hole is connected to the waste channel.
[0013] As a preferred embodiment, the waste channel is inclined toward the rear and lower side of the lower die base. The above solution is adopted to facilitate the rapid discharge of waste residues.
[0014] As a preferred embodiment, the pad is provided with a workpiece waiting plate corresponding to the notch, and the workpiece waiting plate extends horizontally toward the front side of the lower die base. The above solution is adopted to facilitate the placement of the workpiece to be stamped and improve the stamping processing efficiency.
[0015] Preferably, the bottom of the guide plate has an auxiliary unloading block. With the above solution, after punching, the workpiece adheres to the punch. During the upward movement of the punch, the workpiece first contacts the auxiliary unloading block, and is easily separated from the punch, which is beneficial to improving unloading efficiency.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The automobile traction bracket end connection hole punching die provided by the utility model mainly ensures that the traction bracket will not move or deflect during the punching process by supporting and limiting the traction bracket in multiple directions, thereby improving the punching quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 for Figure 1 Front view of
[0020] Figure 3 for Figure 2Sectional view at AA;
[0021] Figure 4 for Figure 2 Sectional view at the middle BB;
[0022] Figure 5 for Figure 1 Schematic diagram of the rear structure;
[0023] Figure 6 This is a schematic diagram of the use state of the utility model;
[0024] Figure 7 This is a schematic diagram of the finished structure of the traction bracket. DETAILED DESCRIPTION
[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0026] First reference Figure 7 The finished towing bracket structure shown in the figure, the automobile towing bracket targeted by the present application, includes a body 1 that is generally in the shape of an isosceles triangle. As shown in the figure, the middle vertex of the body 1 is arc-shaped, forming an arc top 10, which is used to process the center hole 12. The two ends of the body 1 have fixing parts 11 that extend horizontally and are flush with each other in theory. The plane of the fixing part 11 is perpendicular to the end face of the center hole 12. The two fixing parts 11 have connecting holes 13 that are opposite to each other left and right, front and back, and the design axis of the connecting hole 13 is perpendicular to the fixing part 11.
[0027] Refer to Figures 1 to 7 The stamping die for the end connection hole of the automobile towing bracket shown in the figure mainly includes a stamping die including an upper die base 2 and a lower die base 3. As shown in the figure, there is a guiding structure that cooperates with each other between the upper die base 2 and the lower die base 3, wherein the lower die base 3 has a center positioning structure 4, and the lower die base 3 has symmetrically arranged end support structures on both sides of the center positioning structure 4. The center positioning structure mainly includes a vertically arranged support 40, and a positioning rod 41 movably supported on the support 40, the positioning rod 41 is adapted to the center hole 12, and has a step surface 410 that abuts against the middle arc top 10, and the end support structure is used to horizontally support the fixing part 11.
[0028] As shown in the figure, the support 40 has a vertically arranged slide groove 400, the top of the slide groove 400 is open, and a slider 42 is provided therein for sliding cooperation therewith. The positioning rod 41 is fixedly connected to the slider 42, and the axial direction of the positioning rod 41 is perpendicular to the length direction of the slide groove 400. There is an adjustment block 43 installed in a detachable manner between the slider 42 and the support 40. The adjustment block 43 is used to adjust the height of the slider 42. The adjustment block 43 is located below the slider 42 and can be relatively fixed to the support 40 by screws.
[0029] The end support structure includes a boss 30, and a pad 31, a support plate 32 and a guide plate 33 which are arranged on the boss 30 from bottom to top, wherein a slot is provided between the support plate 32 and the guide plate 33 for the fixing portion 11 to extend into, a punch 20 is provided on the upper die base 2, and guide holes corresponding to the punch 20 are provided on the support plate 32 and the guide plate 33.
[0030] The boss 30 has a waste channel 300 disposed obliquely therein, the guide hole is connected to the waste channel 300 , and the waste channel 300 is disposed obliquely toward the rear and lower side of the lower die base 3 .
[0031] The backing plate 31 is provided with a workpiece waiting plate 34 corresponding to the notch, and the workpiece waiting plate 34 extends horizontally toward the front side of the lower die base 3. The bottom of the guide plate 33 is provided with an auxiliary unloading block 35, and the auxiliary unloading block 35 protrudes from the surface of the guide plate 33.
[0032] refer to Figures 1 to 7 The illustrated stamping die for the connection hole at the end of the automobile towing bracket is used by aligning the center hole 12 on the blank to be processed with the positioning rod 41, and aligning the fixing parts 11 at both ends with the notches and then inserting them until the end face of the center hole 12 abuts against the step surface 410. Then, the driving mechanism of the upper die base 2 can drive it downward to complete the stamping of the connection hole 13, and the waste generated by punching can be directly discharged from the rear side of the die through the waste channel 300.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.
Claims
1. A stamping die for a connection hole at the end of an automobile traction bracket, the bracket comprising a body (1), the body (1) having a middle arc top (10), and two fixing parts (11) respectively located at two symmetrical ends of the arc top (10), the middle arc top (10) having a center hole (12), characterized in that: The stamping die comprises an upper die base (2) and a lower die base (3), wherein a mutually cooperating guiding structure is provided between the upper die base (2) and the lower die base (3), wherein the lower die base (3) has a center positioning structure (4), and the center positioning structure (4) has symmetrically arranged end support structures on both sides, wherein the center positioning structure comprises a support (40) and a positioning rod (41) movably supported on the support (40), wherein the positioning rod (41) is adapted to the center hole (12) and has a step surface (410) abutting against the middle arc top (10), and the end support structure is used for horizontally supporting the fixing part (11).
2. The stamping die for the connection hole at the end of the automobile traction bracket according to claim 1, characterized in that: The support (40) has a vertically arranged slide groove (400), and the slide groove (400) has a slider (42) slidably matched therewith, and the positioning rod (41) is fixedly connected to the slider (42), and the axial direction of the positioning rod (41) is perpendicular to the length direction of the slide groove (400).
3. The stamping die for the connection hole at the end of the automobile traction bracket according to claim 2, characterized in that: An adjustment block (43) installed in a detachable manner is provided between the slider (42) and the support (40), and the adjustment block (43) is used to adjust the height of the slider (42).
4. The stamping die for the connection hole at the end of the automobile traction bracket according to any one of claims 1 to 3, characterized in that: The end support structure comprises a boss (30), and a pad (31), a support plate (32) and a guide plate (33) which are arranged on the boss (30) in sequence from bottom to top, wherein a notch is provided between the support plate (32) and the guide plate (33) for the fixing portion (11) to extend into; The upper die base (2) is provided with a punch (20), and the support plate (32) and the guide plate (33) are provided with guide holes corresponding to the punch (20) one by one.
5. The stamping die for the connection hole at the end of the automobile traction bracket according to claim 4, characterized in that: The boss (30) has a waste channel (300) arranged obliquely therein, and the guide hole is connected to the waste channel (300).
6. The stamping die for the connection hole at the end of the automobile traction bracket according to claim 5, characterized in that: The waste channel (300) is arranged obliquely toward the rear and lower side of the lower die base (3).
7. The stamping die for the connection hole at the end of the automobile traction bracket according to claim 4, characterized in that: The backing plate (31) is provided with a workpiece waiting plate (34) arranged corresponding to the notch, and the workpiece waiting plate (34) extends horizontally toward the front side of the lower die base (3).
8. The stamping die for the connection hole at the end of the automobile traction bracket according to claim 4, characterized in that: The bottom of the guide plate (33) is provided with an auxiliary unloading block (35).