A multi-directional trim die for a fabricated rear subframe assembly
By designing a multi-directional cutting die, and utilizing a combination of mounting strips, sleeves, telescopic rods, and springs, along with a limiting mechanism and hydraulic system, the problem of die offset during cutting of the rear subframe assembly was solved, achieving high-precision and stable cutting results and improving production quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 扬州市恒宝机电有限公司
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-31
AI Technical Summary
Existing trimming dies are prone to causing frame assembly misalignment when trimming the rear subframe assembly, resulting in cutting errors and reduced production quality.
The multi-directional cutting die is used, and the combination of mounting strips, sleeves, telescopic rods and springs in the die, combined with the limiting mechanism and hydraulic system, ensures stable clamping of the frame, and the blower removes waste material, thereby improving cutting accuracy and stability.
It improves the cutting accuracy and stability of the trimming die, avoids cutting errors, and enhances the trimming quality and applicability of the rear subframe assembly.
Smart Images

Figure CN224574462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rear subframe assembly processing technology, specifically a multi-directional cutting mold for processing rear subframe assemblies. Background Technology
[0002] Trimming dies are stamping dies that use stamping dies to trim the edges of workpieces, giving them a certain height, diameter, and shape. Trimming dies are mainly used to trim the edges of drawn parts, making the end face flat and beautiful, which is convenient for the next step.
[0003] After the rear subframe assembly is produced, there will be waste material at its outer edge flange. To ensure the production quality of the rear subframe, it is necessary to remove the waste material from the outer flange of the rear subframe during the production process. Generally, multi-directional cutting dies are used to cut the waste material. However, existing cutting dies require clamping and fixing the rear subframe assembly during the cutting process. However, existing cutting dies usually use clamping plates to clamp the rear subframe assembly. The shape of the rear subframe assembly is generally irregular. When clamping and fixing it with clamping plates, it is easy to cause the rear subframe assembly to shift. Therefore, certain cutting errors are likely to occur during cutting, thereby reducing the cutting accuracy of the cutting die and further affecting the production quality of the rear subframe assembly. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a multi-directional cutting die for processing rear subframe assemblies. This solves the problem that traditional multi-directional cutting dies easily cause the subframe assembly to shift during cutting, thus improving the cutting stability of the rear subframe assembly, avoiding shifting during cutting and causing cutting errors, and improving the cutting accuracy of the multi-directional cutting die, while further improving the cutting quality of the rear subframe assembly.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional cutting mold for processing a rear subframe assembly, comprising a base, a lower template fixedly connected to the upper surface of the base, and an anti-slip pad installed on the upper surface of the lower template. A rear subframe is provided above the anti-slip pad, and folded edges are fixedly connected to both ends of the rear subframe. An upper template is provided above the rear subframe, and a groove is formed on the lower surface of the upper template. The groove is connected to multiple sets of mounting strips via mounting components, and multiple sets of sleeves are fixedly connected to the lower surfaces of the multiple sets of mounting strips. Telescopic rods are slidably connected inside the multiple sets of sleeves, and springs are sleeved on the side surfaces of the telescopic rods. The two ends of the springs are fixedly connected to the lower ends of the sleeves and the lower ends of the telescopic rods, respectively. Mounting blocks are fixedly connected to both ends of the mounting strips. Limiting mechanisms are provided at both ends of the upper template, and cutting blades are fixedly connected to the lower surfaces of both ends of the upper template.
[0006] Preferably, the upper surface of the anti-slip pad is fixedly and symmetrically connected with positioning blocks, and the positioning blocks correspond to the holes inside the rear subframe.
[0007] Preferably, the limiting mechanism includes a limiting plate, one end of which is fixedly connected to the side surface of the upper template. A limiting post is slidably connected inside the limiting plate, and the lower and upper ends of the limiting post are fixedly connected to the upper surface of the base and the lower surface of the support frame, respectively.
[0008] Preferably, the mounting assembly includes mounting grooves symmetrically opened on the inner surface of the groove, and a holding hole is opened inside the mounting groove, and a limiting component is provided on the outer side of the holding hole.
[0009] Preferably, the limiting component includes an insert block, which is slidably installed inside the holding hole. One end of the insert block is fixedly connected to a side plate, and the inner surface of the side plate is fixedly connected to the outer surface of the upper template through a return spring.
[0010] Preferably, a support frame is fixedly connected to the upper surface of the base, and a hydraulic cylinder is fixedly connected to the upper surface of the support frame. The lower end of the hydraulic cylinder passes through the support frame and is fixedly connected to the upper surface of the upper template.
[0011] Preferably, a blower is fixedly connected to the upper surface of the upper template, and nozzles are fixedly connected to both ends of the blower, with the nozzles aligned with the cutter.
[0012] This utility model provides a multi-directional cutting die for processing rear subframe assemblies. Compared with the prior art, it has the following advantages: By cooperating with the mounting strip installed inside the groove and the sleeve fixedly connected to the lower surface of the mounting strip, the telescopic rod slidably connected inside the sleeve and the spring sleeved on the outer surface of the telescopic rod, the problem of the frame assembly easily shifting when the traditional multi-directional cutting mold is used to cut the rear subframe assembly is solved. Therefore, the cutting stability of the rear subframe assembly is improved, the shift during cutting is avoided and the cutting error is avoided, and the cutting accuracy of the multi-directional cutting mold is improved, while the cutting quality of the rear subframe assembly is further improved.
[0013] The mounting strip can be quickly disassembled and replaced by a telescopic rod fixedly connected to both ends of the mounting strip and a mounting groove symmetrically opened on the inner surface of the groove, which cooperates with the holding hole opened on the inner wall of the mounting groove and the limiting component set on the outer side of the holding hole. Therefore, it can be used to trim the rear subframe of different models, thus expanding the application range of the multi-directional trimming mold. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the inner structure of the support frame in this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the upper and middle sections of the template from below; Figure 4 This utility model Figure 3 A top-view structural diagram.
[0015] In the diagram: 1. Base; 101. Lower template; 102. Anti-slip mat; 103. Positioning block; 2. Support frame; 201. Hydraulic cylinder; 3. Limiting plate; 301. Limiting post; 4. Upper template; 401. Blower; 402. Cutter; 403. Groove; 404. Holding hole; 405. Mounting slot; 406. Nozzle; 5. Side plate; 501. Return spring; 502. Insert block; 6. Mounting strip; 601. Sleeve; 602. Spring; 603. Telescopic rod; 604. Mounting block; 7. Rear subframe; 701. Folded edge. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-4 This utility model provides a technical solution: a multi-directional cutting mold for processing a rear subframe assembly, including a base 1, a lower template 101 fixedly connected to the upper surface of the base 1, an anti-slip pad 102 installed on the upper surface of the lower template 101, a rear subframe 7 above the anti-slip pad 102, folded edges 701 fixedly connected to both ends of the rear subframe 7, an upper template 4 above the rear subframe 7, and a groove 403 formed on the lower surface of the upper template 4, the groove 403 being connected to an mounting component. Multiple sets of mounting strips 6 are connected, and multiple sets of sleeves 601 are fixedly connected to the lower surface of the multiple sets of mounting strips 6. Telescopic rods 603 are slidably connected inside the multiple sets of sleeves 601. Springs 602 are sleeved on the side surface of the telescopic rods 603. The two ends of the springs 602 are fixedly connected to the lower end of the sleeves 601 and the lower end of the telescopic rods 603, respectively. Mounting blocks 604 are fixedly connected to both ends of the mounting strips 6. Limiting mechanisms are provided at both ends of the upper template 4. Cutters 402 are fixedly connected to the lower surface of both ends of the upper template 4.
[0018] As a technical optimization of this utility model, a positioning block 103 is fixedly and symmetrically connected to the upper surface of the anti-slip pad 102. The positioning block 103 corresponds to the hole inside the rear subframe 7. The positioning block 103 on the upper surface of the anti-slip pad 102 can initially limit the rear subframe 7, thereby further improving the stability of the rear subframe 7.
[0019] As a technical optimization of this utility model, the limiting mechanism includes a limiting plate 3. One end of the limiting plate 3 is fixedly connected to the side surface of the upper template 4. A limiting post 301 is slidably connected inside the limiting plate 3. The lower end and the upper end of the limiting post 301 are fixedly connected to the upper surface of the base 1 and the lower surface of the support frame 2, respectively. The limiting plate 3 and the limiting post 301 can limit the upper template 4 and prevent the upper template 4 from shaking during downward movement.
[0020] As a technical optimization of this utility model, the mounting component includes mounting grooves 405 symmetrically opened on the inner surface of the groove 403, a holding hole 404 is opened inside the mounting groove 405, and a limiting component is provided on the outer side of the holding hole 404. The mounting blocks 604 fixedly connected to both ends of the groove 403 cooperate with each other, so as to facilitate the mounting of the mounting strip 6 inside the groove 403.
[0021] As a technical optimization of this utility model, the limiting component includes a plug 502, which is slidably installed inside the holding hole 404. One end of the plug 502 is fixedly connected to a side plate 5. The inner surface of the side plate 5 is fixedly connected to the outer surface of the upper template 4 through a return spring 501. By the cooperation of the plug 502 and the return spring 501 in the limiting component, the mounting strip 6 can be limited to prevent it from falling off after installation.
[0022] As a technical optimization of this utility model, a support frame 2 is fixedly connected to the upper surface of the base 1, and a hydraulic cylinder 201 is fixedly connected to the upper surface of the support frame 2. The lower end of the hydraulic cylinder 201 passes through the support frame 2 and is fixedly connected to the upper surface of the upper template 4.
[0023] As a technical optimization of this utility model, a blower 401 is fixedly connected to the upper surface of the upper template 4, and nozzles 406 are fixedly connected to both ends of the blower 401. The nozzles 406 are aligned with the cutter 402. The blower 401 and the nozzles 406 can clean up the cut waste material and prevent it from accumulating on the upper surface of the lower template 101, which would affect the cutting edge processing of the rear subframe assembly.
[0024] In use, the rear subframe 7 is first placed on the upper surface of the anti-slip mat 102. Then, the positioning block 103 on the upper surface of the anti-slip mat 102 is used to correct the rear subframe 7. After that, the hydraulic cylinder 201 on the upper surface of the support frame 2 is activated. The hydraulic cylinder 201 will push the upper template 4 downward, and the mounting strip 6 on the lower surface of the upper template 4 will move downward along with the upper template 4. As the upper template 4 approaches the rear subframe 7, the telescopic rod 603 will first contact the rear subframe 7. Under the pressure of the upper template 4, the telescopic rod 603 will retract into the sleeve 601. Therefore, the telescopic rod 603 can fully contact the rear subframe 7 according to its shape, thereby clamping the rear subframe 7. The support frame 2 is held in place to prevent the rear subframe 7 from shifting. Then, the support frame 2 continues to push the upper template 4 downward. The cutters 402 on the lower surfaces of both ends of the upper template 4 will cut off the waste material on the outside of the folded edge 701. At the same time, the blower 401 on the upper surface of the upper template 4 is started. At this time, the blower 401 blows air onto the rear subframe 7 through the nozzle 406, thereby blowing the cut waste material away from the upper surface of the base 1 for easy collection later. When encountering a rear subframe 7 of different sizes, the operator can pull the side plate 5 outward to remove the mounting strip 6 inside the groove 403, and then replace it with a mounting strip 6 that matches the rear subframe 7 to clamp and fix the rear subframe 7.
[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-directional trim die for a fabricated rear subframe assembly, comprising a base (1), characterised in that: The upper surface of the base (1) is fixedly connected to a lower template (101), and an anti-slip pad (102) is installed on the upper surface of the lower template (101). A rear subframe (7) is provided above the anti-slip pad (102), and folded edges (701) are fixedly connected to both ends of the rear subframe (7). An upper template (4) is provided above the rear subframe (7), and a groove (403) is provided on the lower surface of the upper template (4). The groove (403) is connected to multiple sets of mounting strips (6) through mounting components, and the lower surfaces of the multiple sets of mounting strips (6) are connected to the lower surfaces of the mounting strips (6). Multiple sets of sleeves (601) are fixedly connected to the surface. A telescopic rod (603) is slidably connected inside the multiple sets of sleeves (601). A spring (602) is sleeved on the side surface of the telescopic rod (603). The two ends of the spring (602) are fixedly connected to the lower end of the sleeve (601) and the lower end of the telescopic rod (603), respectively. An installation block (604) is fixedly connected to both ends of the mounting strip (6). A limiting mechanism is provided at both ends of the upper template (4). A cutter (402) is fixedly connected to the lower surface of both ends of the upper template (4).
2. A multi-directional trim die for machining a rear subframe assembly according to claim 1, characterized in that: The upper surface of the anti-slip pad (102) is fixedly and symmetrically connected with a positioning block (103), and the positioning block (103) corresponds to the hole inside the rear subframe (7).
3. A multi-directional trim die for machining a rear subframe assembly according to claim 1, wherein: The limiting mechanism includes a limiting plate (3), and one end of the limiting plate (3) is fixedly connected to the side surface of the upper template (4). The limiting plate (3) is slidably connected to a limiting post (301), and the lower end and upper end of the limiting post (301) are fixedly connected to the upper surface of the base (1) and the lower surface of the support frame (2), respectively.
4. A multi-directional trim die for machining a rear subframe assembly according to claim 1, wherein: The mounting assembly includes mounting grooves (405) symmetrically opened on the inner surface of the groove (403), and a holding hole (404) is provided inside the mounting groove (405), and a limiting component is provided on the outer side of the holding hole (404).
5. A multi-directional trim die for machining a rear subframe assembly according to claim 4, wherein: The limiting component includes a plug (502), which is slidably installed inside the holding hole (404). One end of the plug (502) is fixedly connected to a side plate (5), and the inner surface of the side plate (5) is fixedly connected to the outer surface of the upper template (4) through a reset spring (501).
6. A multi-directional trim die for machining a rear subframe assembly according to claim 1, wherein: The upper surface of the base (1) is fixedly connected to a support frame (2), and the upper surface of the support frame (2) is fixedly connected to a hydraulic cylinder (201). The lower end of the hydraulic cylinder (201) passes through the support frame (2) and is fixedly connected to the upper surface of the upper template (4).
7. A multi-directional trim die for machining a rear subframe assembly according to claim 1, wherein: A blower (401) is fixedly connected to the upper surface of the upper template (4), and nozzles (406) are fixedly connected to both ends of the blower (401). The nozzles (406) are aligned with the cutter (402).