A bending machine for automobile sheet

Abstract

The utility model discloses a kind of bending machines for automobile plate, it is related to sheet metal processing equipment technical field, the bending machine includes fixed component and limiting component;Fixed component is driven cam by knob, and second limiting plate is pushed to abut against groove block, and is reset by second tensile spring, realize quick locking and release;Limiting component is operated by clamping plate to card plate, so that the slide that bears first limiting plate is unlocked, and is locked after being positioned by first tensile spring drive card plate reset, the utility model solves the problem that the prior art replaces mould and adjusts limiting operation cumbersome, low efficiency, with the beneficial effects of replacing mould convenient and fast, positioning rapidly reliable, significantly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of metal sheet processing equipment, and in particular to a bending machine for automotive sheet metal. Background Technology

[0002] Bending machines are key equipment in the automotive manufacturing industry for forming and processing sheet metal. With the development of the automotive industry, the shapes and structures of automobiles are becoming increasingly complex and diverse, requiring the use of sheet metal with different dimensions and bending shapes. Therefore, bending machines need to be able to frequently change lower dies (i.e., die grooves) of different specifications and adjust the positioning baffles of the sheet metal to adapt to the flexible production needs of small batches and multiple varieties.

[0003] In existing technologies, the replacement of the lower die of a bending machine typically relies on bolts or pressure plates for fixing. When the lower die needs to be replaced, operators must use tools such as wrenches to loosen the fasteners one by one, then place the new lower die, realign it, and tighten it again. This entire process not only consumes a lot of time and reduces the operating efficiency of the production line, but repeated disassembly and assembly can also easily lead to wear on the fasteners, affecting the long-term stability of positioning.

[0004] Similarly, for the positioning and adjustment of sheet metal, traditional limit devices often use the method of manually loosening the locking screws, moving the baffle to the target position, and then tightening the screws to fix it. This adjustment method is cumbersome and inefficient. In addition, it is easy to cause positional deviation due to careless operation during the adjustment process, which affects the bending accuracy of the final product. When the production task requires frequent switching between sheet metal of different sizes, this inefficient adjustment method becomes a bottleneck restricting the overall production efficiency.

[0005] Therefore, this utility model proposes a bending machine for automotive sheet metal to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a bending machine for automotive sheet metal, which aims to improve the problems of cumbersome operation and reliance on tools when changing molds (groove blocks) and the many steps and low efficiency when adjusting sheet metal limits in the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a bending machine for automotive sheet metal, comprising: a bending machine body, a bending blade, a grooved block, a fixing component, and a limiting component.

[0008] The fixing component includes a knob, a cam, a second limiting plate, and a second tension spring; the limiting component includes a first limiting plate, a sliding plate, a locking plate, and a first tension spring.

[0009] The cam is connected to the knob and is used to drive the second limiting plate to abut against or disengage from the slotted block. One end of the second tension spring is connected to the second limiting plate, and the other end is connected to the bending machine body for resetting. The locking plate is used to lock or unlock the slide plate. One end of the first tension spring is connected to the locking plate, and the other end is connected to the slide plate for resetting.

[0010] Preferably, the fixing component further includes a drive column connected between the knob and the cam.

[0011] Preferably, a friction plate is provided on the side of the second limiting plate facing the groove block.

[0012] Preferably, the fixing component further includes a limiting post, and the second limiting plate has a through hole and is slidably sleeved on the limiting post.

[0013] Preferably, the limiting component further includes a clamping plate, which is linked with the clamping plate and is used to operate the clamping plate to disengage from the bending machine body.

[0014] Preferably, the limiting component further includes a fixing post, and the sliding plate is fitted onto and slides along the fixing post.

[0015] Preferably, the slide plate is provided with a slide rail, and the bending machine body is provided with a corresponding limiting groove, and the slide rail is slidably accommodated in the limiting groove.

[0016] Preferably, the bending machine for automotive sheet metal further includes a control panel for driving the bending blade to move, and a connecting frame connected between the control panel and the bending blade.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by setting a second limiting plate linked by a knob, a cam, and a second tension spring, the problems of needing tools, cumbersome operation, and unreliable fixing when changing bending machine molds in the prior art are solved. This achieves the technical effect of quickly changing and locking the slot block by hand, improving production preparation efficiency and processing stability.

[0019] 2. In this utility model, by setting a sliding plate in which the clamping plate, the locking plate and the first tension spring work together, the problem of multiple adjustment steps and low positioning accuracy when adjusting the limit position of the plate in the prior art is solved. The technical effect of quickly adjusting and reliably locking the position of the first limit plate is achieved, and the adaptability of the equipment to different specifications of plates is enhanced. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a bending machine for automotive sheet metal proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a grooved block for a bending machine for automotive sheet metal proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of a bending machine for automotive sheet metal according to the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of a limiting plate for a bending machine for automotive sheet metal proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the clamping plate of a bending machine for automotive sheet metal proposed in this utility model.

[0025] Legend:

[0026] 1. Bending machine; 2. Control panel; 3. Bending blade; 4. Limiting assembly; 401. First limiting plate; 402. Fixing post; 403. Slide plate; 404. Limiting groove; 405. Clamping plate; 406. First tension spring; 407. Slide rail; 408. Clamping plate; 5. Groove block; 6. Connecting frame; 7. Fixing assembly; 701. Friction plate; 702. Second limiting plate; 703. Knob; 704. Transmission post; 705. Cam; 706. Second tension spring; 707. Limiting post. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1-5 The present invention provides an embodiment of a bending machine for automotive sheet metal, which aims to solve the problems of complex mold replacement and sheet metal limit adjustment structure and inconvenient operation in the prior art.

[0029] The bending machine for automotive sheet metal includes a bending machine body 1. The bending machine body 1 is equipped with a control panel 2 for driving the bending action, a limiting component 4 for positioning the automotive sheet metal, and a fixing component 7 for fixing the channel block 5. The channel block 5 is detachably installed inside the bending machine body 1. The bending blade 3 is connected to the control panel 2 via a connecting frame 6. The control panel 2 drives the bending blade 3 to cooperate with the channel block 5 to bend the automotive sheet metal.

[0030] The fixed assembly 7 includes a manually operable knob 703, a transmission column 704, a cam 705, a second limiting plate 702, a friction plate 701, a second tension spring 706, and a limiting post 707. The knob 703 is rotatably mounted on the outside of the bending machine 1 body. The transmission column 704 is fixedly connected to the knob 703 and passes through the bending machine 1 body to be connected to the cam 705. The limiting post 707 is fixedly installed inside the bending machine 1 body. The second limiting plate 702 has a through hole and is slidably sleeved on the limiting post 707. When the cam 705 rotates, it can abut against and push the second limiting plate 702 to slide along the limiting post 707. The friction plate 701 is fixedly installed on the side of the second limiting plate 702 facing the groove block 5. One end of the second tension spring 706 is connected to the second limiting plate 702, and the other end is connected to the bending machine 1 body.

[0031] The limiting component 4 includes a first limiting plate 401, a fixed post 402, a sliding plate 403, a limiting groove 404, a clamping plate 405, a first tension spring 406, a slide rail 407, and a locking plate 408. The fixed post 402 is fixedly installed on the body of the bending machine 1. The sliding plate 403 is fitted onto and slides along the fixed post 402. The first limiting plate 401 is fixedly connected to the sliding plate 403. The bending machine 1 body has a corresponding limiting groove 404. The sliding plate 403 is provided with a slide rail 407 that slides with the limiting groove 404. The clamping plate 405 is linked with the locking plate 408 to operate the locking plate 408 to engage or disengage from the locking groove of the bending machine 1 body. One end of the first tension spring 406 is connected to the locking plate 408, and the other end is connected to the sliding plate 403. This structure of a fixed component with a cam and a spring working together, and a limiting component with a locking plate and a spring working together, ensures the convenience and reliability of mold replacement and plate positioning.

[0032] Regarding the specific driving method of the control panel 2, those skilled in the art can use various conventional methods such as hydraulic, pneumatic or electric drive. Its specific internal structure is a well-known technology in the field and will not be described in detail here.

[0033] In order to achieve reliable torque transmission, the knob 703 of the fixed component 7 is connected to the cam 705 through the transmission column 704. When the knob 703 is rotated, the transmission column 704 rotates synchronously, thereby precisely driving the cam 705 to rotate to the preset angle.

[0034] In order to increase the friction force when fixed and prevent the groove block 5 from shifting during bending, a friction plate 701 is fixed on the surface of the second limiting plate 702 facing the groove block 5. The friction plate 701 is preferably made of rubber or polyurethane material with a high coefficient of friction.

[0035] To ensure the smooth reciprocating motion of the second limiting plate 702, the limiting post 707 of the fixing component 7 is vertically fixed to the inner wall of the bending machine 1 body. The second limiting plate 702 has a through hole that matches the outer diameter of the limiting post 707 and is slidably sleeved on the limiting post 707. The limiting post 707 guides and supports the sliding of the second limiting plate 702.

[0036] To facilitate the unlocking operation of the limiting component 4, the limiting component 4 also includes a clamping plate 405, which is pivotally connected to the slide plate 403 and is connected to the card plate 408 in a transmission manner. By pressing or pulling the clamping plate 405, the card plate 408 can be moved.

[0037] As another preferred embodiment, in order to provide a stable reference for the movement of the limiting component 4, the two ends of the fixing post 402 of the limiting component 4 are respectively fixed to the body of the bending machine 1, and the sliding plate 403 has a through mounting hole and is sleeved on the outer periphery of the fixing post 402, so that the sliding plate 403 can slide stably along the axial direction of the fixing post 402.

[0038] To prevent the slide plate 403 from rotating around the fixed column 402 and to improve the straightness of its movement, a slide rail 407 is integrally formed on the side wall of the slide plate 403, and a limit groove 404 is opened at the corresponding position on the body of the bending machine 1, and the slide rail 407 and the limit groove 404 slide in cooperation.

[0039] The control panel 2 is located on the upper part of the bending machine 1. The upper end of the connecting frame 6 is connected to the control panel 2, and its lower end is detachably connected to the bending blade 3, thereby transmitting the reciprocating motion generated by the control panel 2 to the bending blade 3.

[0040] Working principle: When it is necessary to fix the groove block 5, slide the groove block 5 into the bending machine 1, rotate the knob 703, and the knob 703 drives the cam 705 to rotate through the transmission column 704. The cam 705 pushes the second limit plate 702 to slide on the limit column 707, so that the friction plate 701 contacts the groove block 5 and clamps it. At the same time, the second tension spring 706 is stretched. When it is necessary to remove the groove block 5, rotate the knob 703 in the opposite direction, the cam 705 returns to its original position, and the second tension spring 706 rebounds and drives the second limit plate 702 to return to its original position, thereby releasing the limit on the groove block 5.

[0041] When it is necessary to limit the plate at different positions, pull the clamping plate 405. The clamping plate 405 drives the clamping plate 408 to slide out from inside the bending machine 1 and stretches the first tension spring 406. At this time, the slide plate 403 is unlocked and can slide on the fixed column 402. At the same time, the slide rail 407 slides inside the limiting groove 404 to guide the slide plate 403. After moving to the appropriate position, release the clamping plate 405. The first tension spring 406 rebounds and drives the clamping plate 408 to slide back into the bending machine 1 for fixation, thereby maintaining the stability of the first limiting plate 401.

[0042] When bending automotive sheet metal, the control panel 2 drives the connecting frame 6, which in turn moves the bending blade 3 downward to bend the sheet metal that is limited by the first limiting plate 401. Through the coordinated action of the fixing component 7 and the limiting component 4, this invention solves the problems of cumbersome and inefficient operation of changing the bending machine mold and adjusting the sheet metal limit in the prior art.

Claims

1. A bending machine for automotive sheet metal, comprising a bending machine (1) body, a bending blade (3) disposed on the bending machine (1) body, a groove block (5) detachably installed in the bending machine (1) body, a fixing component (7) for fixing the groove block (5), and a limiting component (4) for positioning the automotive sheet metal, characterized in that: The fixing component (7) includes a manually operable knob (703), a cam (705) pulsatorically connected to the knob (703), and a second limiting plate (702) driven by the cam (705) to abut or disengage from the slotted block (5). The fixing component (7) also includes a second tension spring (706), one end of which is connected to the second limiting plate (702), and the other end is connected to the bending machine (1) body. The limiting component (4) includes a first limiting plate (401) for stopping the plate, a sliding plate (403) that supports the first limiting plate (401) and is slidable, and a locking plate (408) for locking or unlocking the sliding plate (403). The limiting component (4) also includes a first tension spring (406), one end of which is connected to the locking plate (408) and the other end of which is connected to the sliding plate (403).

2. The bending machine for automotive sheet metal according to claim 1, characterized in that, The fixing component (7) also includes a transmission column (704) connected between the knob (703) and the cam (705), wherein the knob (703) drives the cam (705) to rotate via the transmission column (704).

3. A bending machine for automotive sheet metal according to claim 1 or 2, characterized in that, A friction plate (701) is provided on the side of the second limiting plate (702) facing the groove block (5).

4. The bending machine for automotive sheet metal according to claim 1, characterized in that, The fixing component (7) further includes a limiting post (707), and the second limiting plate (702) has a through hole and is slidably sleeved on the limiting post (707).

5. A bending machine for automotive sheet metal according to claim 1, characterized in that, The limiting component (4) also includes a clamping plate (405), which is linked with the locking plate (408). By operating the clamping plate (405), the locking plate (408) can be disengaged from the bending machine (1) body, thereby unlocking the slide plate (403).

6. A bending machine for automotive sheet metal according to claim 5, characterized in that, The limiting component (4) further includes a fixing post (402), and the sliding plate (403) is fitted onto and slides along the fixing post (402).

7. A bending machine for automotive sheet metal according to claim 6, characterized in that, The slide plate (403) is provided with a slide rail (407), and the bending machine (1) body is provided with a corresponding limiting groove (404), and the slide rail (407) is slidably accommodated in the limiting groove (404).

8. A bending machine for automotive sheet metal according to claim 1, characterized in that, It also includes a control panel (2) for driving the bending knife (3) to move, and a connecting frame (6) connected between the control panel (2) and the bending knife (3).

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