A bending device for hardware machining
By introducing a mechanism for the synchronous replacement of bending heads and mandrels and a limiting mechanism into the hardware processing equipment, the problem of unstable bending effect caused by wear of bending heads and mandrels has been solved, achieving efficient and stable synchronous replacement and improving the quality of hardware processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN RUNPENG PRECISION HARDWARE CO LTD
- Filing Date
- 2025-10-11
- Publication Date
- 2026-07-24
AI Technical Summary
In existing hardware processing equipment, the bending head and core plate wear down after long-term use, resulting in unstable and poor bending effect, making it difficult to achieve efficient and synchronous replacement.
The system employs a synchronous replacement mechanism for the bending head and mandrel, along with a limiting mechanism. Through the cooperation of hydraulic cylinders and wedge blocks, the synchronous replacement of the bending head and mandrel is achieved, ensuring the stability and synchronicity of the replacement process.
This technology enables stable and synchronous replacement of the bending head and mandrel, improving the bending effect of hardware parts processing and avoiding poor results caused by wear.
Smart Images
Figure CN224542776U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware bending technology, specifically a bending device for hardware processing. Background Technology
[0002] Hardware refers to tools made of metals such as gold, silver, copper, iron, and tin through processing and casting. They are used to fix things, process things, and decorate. Some hardware needs to be bent due to usage requirements so that they can be installed at the corners and joints of some structures for connection.
[0003] For example, utility model patent CN221869819U discloses a bending device for processing hardware parts, including a base, a bending machine, and a bending head. The bending machine is installed at the top of the base, and the bending head is installed at the telescopic rod of the bending machine. It also includes a bending die assembly, which includes a base die seat, a fixed mounting hole, a central fixed groove, a core plate, a fixed column, a fixed mounting hole, a buffer plate, a fixed through hole, a bending die groove, a central mounting hole, and a bottom mounting hole. The base die seat is placed on the surface of the base below the bending head, and fixed mounting holes are provided at the four corners of the upper surface of the base die seat. The bending die assembly is located at the base below the bending head. The mold is a modular bending mold that can be installed on the machine base. When the core plate of the bending mold is worn, it can be quickly removed and replaced, which facilitates low-cost replacement and maintenance of the bending mold when used as a bending mold for hardware processing. In addition, there is a buffer plate at the core plate to cushion the impact, so that the hardware can be processed and bent better. However, there is a problem that this application only replaces the core plate that has been used for a long time. The bending head will also wear out after long-term use, resulting in unstable and poor bending effect of the hardware. Therefore, we propose a bending device for hardware processing. Utility Model Content
[0004] The purpose of this utility model is to provide a bending device for processing hardware parts, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending device for hardware processing, comprising a C-shaped worktable, a first dovetail groove formed at the center of the front end of the C-shaped worktable, a mechanism for synchronously changing a bending head and a mandrel at the upper end of the C-shaped worktable, and a limiting mechanism at the center of the lower end of the C-shaped worktable. The mechanism for synchronously changing a bending head and a mandrel includes an L-shaped fixing frame, a bending head body, a mandrel body, and a first hydraulic cylinder. The C-shaped worktable is fixedly mounted at the lower end of the L-shaped fixing frame, and a control component is provided on the upper right side of the L-shaped fixing frame. The mechanism for synchronously changing a bending head and a mandrel is used to synchronously change the bending head body and the mandrel body. The limiting mechanism includes a second hydraulic cylinder, which is used to limit the front end of the mechanism for synchronously changing a bending head and a mandrel. The control component is used to control the actions of the first and second hydraulic cylinders.
[0006] Preferably, a first hydraulic cylinder is fixedly installed at the upper middle part of the L-shaped fixing frame, and a movable plate is fixedly installed at the output end of the first hydraulic cylinder. Two symmetrically arranged second dovetail grooves are opened at the front end of the movable plate. A second dovetail block is slidably connected to the inner wall of each second dovetail groove. A top plate is fixedly installed at the lower end of the second dovetail block. A bending head body is fixedly installed at the lower middle part of the top plate. A plurality of evenly distributed first guide posts are slidably connected to the surface of the top plate. A bottom plate is fixedly installed at the lower end of the first guide posts. A first dovetail block is fixedly installed at the lower middle part of the bottom plate. A core mold body is fixedly installed at the upper middle part of the bottom plate. The core mold body is set corresponding to the bending head body.
[0007] Preferably, the limiting mechanism further includes a vertical plate, the lower end of a C-shaped worktable is fixedly installed on the upper end of the vertical plate, a second hydraulic cylinder is fixedly installed on the front end of the vertical plate, a first wedge block is fixedly installed on the output end of the second hydraulic cylinder, a second wedge block is slidably connected to the front end of the first wedge block, a spring and a second guide post are fixedly installed on the upper end of the second wedge block, an L-shaped limiting block is fixedly installed on the upper end of the spring and the second guide post, a slide groove is slidably connected to the outer end of the L-shaped limiting block, the slide groove is opened in the middle of the upper end of the fixed plate, and a C-shaped worktable is fixedly installed on the rear end of the fixed plate.
[0008] Preferably, the control component includes a control panel, with an L-shaped mounting bracket fixedly installed at the lower end of the control panel, and a first button and a second button provided at the front end of the control panel.
[0009] Preferably, the fixing plate is disposed at the lower part of the first dovetail groove, and the rear end of the L-shaped limiting block is slidably connected to the C-shaped worktable.
[0010] Preferably, the output end of the first hydraulic cylinder is slidably connected to an L-shaped fixing frame, and the output end of the first hydraulic cylinder is disposed through the L-shaped fixing frame.
[0011] Preferably, the lower end of the base plate is slidably connected to the upper end of the C-shaped worktable, and the outer end of the first dovetail block is slidably connected to the first dovetail groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model, through a synchronous replacement mechanism for the bending head and mandrel, enables the synchronous replacement of the bending head body and mandrel body. When this is necessary, the first dovetail block and the first dovetail groove can be aligned. A height displacement of the top plate causes the second dovetail block to align with the second dovetail groove. Then, the first dovetail block is inserted into the first dovetail groove, and the second dovetail block is inserted into the second dovetail groove. This allows for the synchronous replacement of the bending head body and mandrel body after prolonged use, preventing poor bending performance of the hardware.
[0014] 2. This utility model allows the second hydraulic cylinder to be controlled via a second button through a limiting mechanism. At this time, the output end of the second hydraulic cylinder drives the first wedge block to move forward, the first wedge block drives the second wedge block to move upward, and the second wedge block drives the second guide post, spring, and L-shaped limiting block to move upward. The L-shaped limiting block slides stably within the groove, improving the stability of the mechanism for synchronously changing the bending head and the core mold. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a front view structural diagram of the synchronous replacement mechanism for the bending head and mandrel of this utility model;
[0017] Figure 3 This is a schematic cross-sectional view of the limiting mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the control component structure of this utility model.
[0019] In the diagram: 1. C-shaped worktable; 2. First dovetail groove; 3. Mechanism for synchronous replacement of bending head and mandrel; 31. L-shaped fixing frame; 32. First hydraulic cylinder; 33. Moving plate; 34. Second dovetail groove; 35. Second dovetail block; 36. Top plate; 37. First guide post; 38. Bottom plate; 39. Bending head body; 310. Mandrel body; 311. First dovetail block; 4. Limiting mechanism; 41. Vertical plate; 42. Second hydraulic cylinder; 43. First wedge block; 44. Second wedge block; 45. Fixing plate; 46. Slide groove; 47. L-shaped limiting block; 48. Spring; 49. Second guide post; 5. Control components; 51. Control panel; 52. First button; 53. Second button. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a bending device for processing hardware parts, including a C-shaped worktable 1, a first dovetail groove 2 opened in the middle of the front end of the C-shaped worktable 1, a bending head and mandrel synchronous replacement mechanism 3 provided at the upper end of the C-shaped worktable 1, and a limiting mechanism 4 provided at the middle of the lower end of the C-shaped worktable 1. The bending head and mandrel synchronous replacement mechanism 3 includes an L-shaped fixing frame 31, a bending head body 39, a mandrel body 310 and a first hydraulic cylinder 32. The C-shaped worktable 1 is fixedly installed at the lower end of the L-shaped fixing frame 31, and a control component 5 is provided on the right side of the upper end of the L-shaped fixing frame 31. The bending head and mandrel synchronous replacement mechanism 3 is used to synchronously replace the bending head body 39 and the mandrel body 310. The limiting mechanism 4 includes a second hydraulic cylinder 42. The limiting mechanism 4 is used to perform a front-end limiting action on the bending head and mandrel synchronous replacement mechanism 3. The control component 5 is used to control the first hydraulic cylinder 32 and the second hydraulic cylinder 42.
[0022] In this embodiment, a first hydraulic cylinder 32 is fixedly installed at the middle of the upper end of the L-shaped fixing frame 31. A movable plate 33 is fixedly installed at the output end of the first hydraulic cylinder 32. Two symmetrically arranged second dovetail grooves 34 are opened at the front end of the movable plate 33. A second dovetail block 35 is slidably connected to the inner wall of each second dovetail groove 34. A top plate 36 is fixedly installed at the lower end of the second dovetail block 35. A bending head body 39 is fixedly installed at the middle of the lower end of the top plate 36. A plurality of evenly distributed first guide posts 37 are slidably connected to the surface of the top plate 36. A bottom plate 38 is fixedly installed at the lower end of the first guide posts 37. A first dovetail block 311 is fixedly installed at the middle of the lower end of the bottom plate 38. A core mold body 310 is fixedly installed at the middle of the upper end of the bottom plate 38. The core mold body 310 is set corresponding to the bending head body 39.
[0023] Specifically, the bending head and mandrel synchronous replacement mechanism 3 can be used to complete the synchronous replacement of the bending head body 39 and the mandrel body 310. At this time, the first dovetail block 311 and the first dovetail groove 2 can be aligned. The top plate 36 can be moved at a height. At this time, the top plate 36 drives the second dovetail block 35 and the second dovetail groove 34 to be aligned. Then, the first dovetail block 311 is inserted into the first dovetail groove 2, and the second dovetail block 35 is inserted into the second dovetail groove 34. The synchronous replacement of the bending head body 39 and the mandrel body 310 after long-term use will not result in poor bending effect of the hardware.
[0024] In this embodiment, the limiting mechanism 4 also includes a vertical plate 41. The lower end of the C-shaped worktable 1 is fixedly installed on the upper end of the vertical plate 41. A second hydraulic cylinder 42 is fixedly installed on the front end of the vertical plate 41. A first wedge block 43 is fixedly installed on the output end of the second hydraulic cylinder 42. A second wedge block 44 is slidably connected to the front end of the first wedge block 43. A spring 48 and a second guide post 49 are fixedly installed on the upper end of the second wedge block 44. An L-shaped limiting block 47 is fixedly installed on the upper end of the spring 48 and the second guide post 49. A slide groove 46 is slidably connected to the outer end of the L-shaped limiting block 47. The slide groove 46 is opened in the middle of the upper end of the fixed plate 45. The C-shaped worktable 1 is fixedly installed on the rear end of the fixed plate 45.
[0025] Specifically, the second hydraulic cylinder 42 can be controlled by the second button 53 through the limiting mechanism 4. At this time, the output end of the second hydraulic cylinder 42 drives the first wedge block 43 to move forward. The first wedge block 43 drives the second wedge block 44 to move upward. The second wedge block 44 drives the second guide post 49, the spring 48 and the L-shaped limiting block 47 to move upward. The L-shaped limiting block 47 slides stably in the slide groove 46, which improves the stability of the bending head and core mold synchronous replacement mechanism 3.
[0026] In this embodiment, the control component 5 includes a control panel 51, an L-shaped bracket 31 is fixedly installed at the lower end of the control panel 51, and a first button 52 and a second button 53 are provided at the front end of the control panel 51.
[0027] Specifically, the control component 5 can control the actions of the first hydraulic cylinder 32 and the second hydraulic cylinder 42.
[0028] In this embodiment, the fixing plate 45 is disposed at the lower part of the first dovetail groove 2, and the rear end of the L-shaped limiting block 47 is slidably connected to the C-shaped worktable 1.
[0029] Specifically, ensure that the fixed plate 45 does not block the first dovetail groove 2, and ensure that the L-shaped limit block 47 does not interfere with the C-shaped worktable 1 during the sliding process.
[0030] In this embodiment, the output end of the first hydraulic cylinder 32 is slidably connected to the L-shaped fixing frame 31, and the output end of the first hydraulic cylinder 32 is disposed through the L-shaped fixing frame 31.
[0031] Specifically, ensure that the output end of the first hydraulic cylinder 32 does not interfere with the L-shaped fixing bracket 31.
[0032] In this embodiment, the lower end of the base plate 38 is slidably connected to the upper end of the C-shaped workbench 1, and the outer end of the first dovetail block 311 is slidably connected to the first dovetail groove 2.
[0033] Specifically, ensure that the base plate 38 does not interfere with the C-shaped worktable 1 during movement, and ensure that the first dovetail block 311 does not interfere with the first dovetail groove 2.
[0034] Working principle: After removing the bending head body 39 and the core mold body 310 from the C-shaped worktable 1, the new bending head body 39 and core mold body 310 can be installed on the C-shaped worktable 1. At this time, the first dovetail block 311 and the first dovetail groove 2 can be aligned. By performing a height displacement movement on the top plate 36, the top plate 36 drives the second dovetail block 35 to align with the second dovetail groove 34. Next, the first dovetail block 311 is inserted into the first dovetail groove 2, and the second dovetail block 35 is aligned with the second dovetail groove 34. The tail block 35 is inserted into the second dovetail groove 34. Next, the second hydraulic cylinder 42 is controlled by the second button 53. At this time, the output end of the second hydraulic cylinder 42 drives the first wedge block 43 to move forward. At this time, the first wedge block 43 drives the second wedge block 44 to move upward. At this time, the second wedge block 44 drives the second guide post 49, the spring 48 and the L-shaped limit block 47 to move upward. At this time, the L-shaped limit block 47 slides stably in the slide groove 46.
[0035] 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 bending device for processing hardware parts, comprising a C-shaped worktable (1), characterized in that: The C-shaped workbench (1) has a first dovetail groove (2) at the middle of its front end. The upper end of the C-shaped workbench (1) is provided with a bending head and mandrel synchronous replacement mechanism (3). The lower end of the C-shaped workbench (1) is provided with a limit mechanism (4). The bending head and mandrel synchronous replacement mechanism (3) includes an L-shaped fixing frame (31), a bending head body (39), a mandrel body (310), and a first hydraulic cylinder (32). The lower end of the L-shaped fixing frame (31) is fixedly installed with the C-shaped workbench (1). The upper right side of the L-shaped fixing frame (31) is provided with a control component (5). The bending head and core mold synchronous replacement mechanism (3) is used to synchronously replace the bending head body (39) and the core mold body (310). The limiting mechanism (4) includes a second hydraulic cylinder (42). The limiting mechanism (4) is used to limit the front end of the bending head and core mold synchronous replacement mechanism (3). The control component (5) is used to control the first hydraulic cylinder (32) and the second hydraulic cylinder (42).
2. The bending device for hardware processing according to claim 1, characterized in that: A first hydraulic cylinder (32) is fixedly installed at the middle of the upper end of the L-shaped fixing frame (31). A moving plate (33) is fixedly installed at the output end of the first hydraulic cylinder (32). Two symmetrically arranged second dovetail grooves (34) are opened at the front end of the moving plate (33). A second dovetail block (35) is slidably connected to the inner wall of each second dovetail groove (34). A top plate (36) is fixedly installed at the lower end of the second dovetail block (35). A bending head body (39) is fixedly installed at the middle of the lower end of the top plate (36). A plurality of evenly distributed first guide posts (37) are slidably connected to the surface of the top plate (36). A bottom plate (38) is fixedly installed at the lower end of the first guide post (37). A first dovetail block (311) is fixedly installed at the middle of the lower end of the bottom plate (38). A core mold body (310) is fixedly installed at the middle of the upper end of the bottom plate (38). The core mold body (310) is set corresponding to the bending head body (39).
3. The bending device for hardware processing according to claim 1, characterized in that: The limiting mechanism (4) also includes a vertical plate (41). The lower end of the C-shaped worktable (1) is fixedly installed on the upper end of the vertical plate (41). A second hydraulic cylinder (42) is fixedly installed on the front end of the vertical plate (41). A first wedge block (43) is fixedly installed on the output end of the second hydraulic cylinder (42). A second wedge block (44) is slidably connected to the front end of the first wedge block (43). A spring (48) and a second guide post (49) are fixedly installed on the upper end of the second wedge block (44). An L-shaped limiting block (47) is fixedly installed on the upper end of the spring (48) and the second guide post (49). A slide groove (46) is slidably connected to the outer end of the L-shaped limiting block (47). The slide groove (46) is opened in the middle of the upper end of the fixed plate (45). The C-shaped worktable (1) is fixedly installed on the rear end of the fixed plate (45).
4. The bending device for hardware processing according to claim 1, characterized in that: The control component (5) includes a control panel (51), an L-shaped bracket (31) is fixedly installed at the lower end of the control panel (51), and a first button (52) and a second button (53) are provided at the front end of the control panel (51).
5. A bending device for processing hardware parts according to claim 3, characterized in that: The fixing plate (45) is located at the lower part of the first dovetail groove (2), and the rear end of the L-shaped limiting block (47) is slidably connected to the C-shaped worktable (1).
6. A bending device for hardware processing according to claim 2, characterized in that: The output end of the first hydraulic cylinder (32) is slidably connected to the L-shaped fixing frame (31), and the output end of the first hydraulic cylinder (32) is set through the L-shaped fixing frame (31).
7. A bending device for processing hardware parts according to claim 2, characterized in that: The lower end of the base plate (38) is slidably connected to the upper end of the C-shaped workbench (1), and the outer end of the first dovetail block (311) is slidably connected to the first dovetail groove (2).