An auxiliary mechanism and its automotive metal parts stamping machine

Abstract

This utility model discloses an auxiliary mechanism and its automotive metal parts stamping machine, relating to the field of automotive metal parts technology. It includes a frame, with a sliding stop plate at the top of the frame to prevent the workpiece from wrapping around the punch surface. A housing is positioned above the frame, with a second sliding plate slidably connected to it. A first circular rod is fixedly connected to the bottom of the second sliding plate, and the stop plate is fixedly connected to the bottom of the first circular rod. A lifting drive mechanism is located inside the housing to drive the stop plate to move. A buffer mechanism is also located inside the housing to buffer the stop plate. When the workpiece wraps around the punch surface, this utility model utilizes the lifting drive mechanism to move the stop plate. Under the action of the buffer mechanism, the pressure of the stop plate on the workpiece gradually increases, achieving a light-to-heavy effect. This avoids the stop plate directly applying a large ejection force, reducing warping or denting of the workpiece, and also prevents the stop plate from scratching the workpiece surface.

Description

Technical Field

[0001] This utility model relates to the field of automotive metal part stamping machine technology, and in particular to an auxiliary mechanism and the automotive metal part stamping machine thereof. Background Technology

[0002] Automotive metal part stamping presses are specialized equipment used for processing automotive metal parts. They employ a hydraulic system to drive a die to apply external force to metal sheets, achieving plastic deformation or separation. In addition to automobiles, they are also widely used in home appliances, electronics, and aerospace industries.

[0003] Automotive metal part stamping machines use punches to apply pressure to parts to complete the stamping process. During the stamping process, the workpiece is easily wrapped around the punch due to plastic deformation and elastic recovery. At this time, ejector pins can be used to eject it. However, the traditional ejector pins directly apply huge local ejection force, which can easily cause the workpiece to warp or dent, resulting in scrap, especially for thinner workpieces. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary mechanism and a stamping machine for automotive metal parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary mechanism and a stamping machine for automotive metal parts, including a frame, wherein a backing plate is slidably disposed on the top of the frame, the backing plate being used to prevent the workpiece from being wrapped around the surface of the punch; The box body is disposed above the frame. A second sliding plate is slidably connected to the box body. A first circular rod is fixedly connected to the bottom of the second sliding plate. A stop plate is fixedly connected to the bottom of the first circular rod. A lifting drive mechanism is provided inside the box body and is used to drive the bottom plate to move. A buffer mechanism is provided inside the box body and is used to buffer the impact plate.

[0006] Preferably, the buffer mechanism includes: A first sliding plate is slidably connected to the inner wall of the box, and a second trapezoidal block is fixedly connected to the bottom of the first sliding plate; A first trapezoidal block is slidably connected to the top of a second sliding plate, and an elastic component is provided on the outside of the first trapezoidal block.

[0007] Preferably, the elastic component includes: A fixing plate is fixedly connected to the second sliding plate; The second circular rod is fixedly connected to the outer wall of the fixed plate. The first trapezoidal block is slidably sleeved on the outer wall of the second circular rod. The outer wall of the second circular rod is movably sleeved with a second spring.

[0008] Preferably, the lifting drive mechanism includes: A sliding rod is fixedly connected to a first sliding plate, and a fixing block is connected to the top of the sliding rod; A fixed frame is fixedly connected to the top of the machine frame, and a second driving component is fixedly connected to the top of the fixed frame. A stop rod is fixedly connected to the output end of the second driving component.

[0009] Preferably, there are two trapezoidal blocks arranged horizontally and symmetrically, and a first spring is movably sleeved on the outer wall of the first circular rod.

[0010] Preferably, a first driving component is fixedly connected to the top of the fixing frame, and the box body is fixedly connected to the output end of the first driving component.

[0011] On the other hand, this utility model also provides an automotive metal parts stamping machine, including an auxiliary mechanism as described in any of the above.

[0012] The technical effects and advantages of this utility model are as follows: When the workpiece is wrapped around the punch surface, the present invention uses a lifting drive mechanism to move the abutment plate. Under the action of the buffer mechanism, the pressure of the abutment plate on the workpiece gradually increases, achieving the effect of light pressure first and heavy pressure later. This avoids the abutment plate directly applying huge ejection force, reducing the phenomenon of warping or denting of the workpiece, and at the same time, preventing the abutment plate from scratching the surface of the workpiece. Attached Figure Description

[0013] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model.

[0014] Figure 2 This is a three-dimensional sectional view of the box body of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the first circular rod of this utility model.

[0016] In the diagram: 1. Frame; 2. Fixing frame; 3. First driving component; 4. Support rod; 5. Fixing block; 6. Sliding rod; 7. Box body; 8. First sliding plate; 9. Support plate; 10. Fixing plate; 11. Second sliding plate; 12. First circular rod; 13. First spring; 14. Second spring; 15. First trapezoidal block; 16. Second trapezoidal block; 17. Second circular rod; 18. Second driving component. Detailed Implementation

[0017] 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.

[0018] This utility model provides, for example Figures 1-3 The auxiliary mechanism shown is used in an automotive metal parts stamping machine. It includes a frame 1, a housing 7, a lifting drive mechanism, and a buffer mechanism. A stop plate 9 is slidably mounted on the top of the frame 1 to prevent the workpiece from encasing the punch surface. The housing 7 is positioned above the frame 1 and is slidably connected to a second sliding plate 11. A first circular rod 12 is fixedly connected to the bottom of the second sliding plate 11, and the stop plate 9 is fixedly connected to the bottom of the first circular rod 12. The lifting drive mechanism is located inside the housing 7 and drives the stop plate 9 to move. The buffer mechanism is located inside the housing 7 and buffers the stop plate 9. The punch is fixedly mounted on the bottom of the housing 7. The housing 7 and the punch... Synchronous movement: The first circular rod 12 passes through the punch. During the punch's descent and stamping process, the abutment 9 is embedded in the inner wall of the punch. After the punch completes the stamping work, the box 7 rises and remains stationary. Under the action of the lifting drive mechanism, the punch and the abutment 9 move relative to each other. The abutment 9 pushes the workpiece out, preventing the workpiece from adhering to the punch surface. In specific use: when the workpiece is wrapped around the punch surface, the lifting drive mechanism drives the abutment 9 to move. Under the action of the buffer mechanism, the pressure of the abutment 9 on the workpiece gradually increases, achieving the effect of light pressure first and heavy pressure later. This avoids the abutment 9 directly applying a huge ejection force, reducing the phenomenon of warping or denting of the workpiece, and at the same time, preventing the abutment 9 from scratching the workpiece surface.

[0019] In one aspect, the buffer mechanism includes a first sliding plate 8 and a first trapezoidal block 15. The first sliding plate 8 is slidably connected to the inner wall of the box 7. A second trapezoidal block 16 is fixedly connected to the bottom of the first sliding plate 8. The first trapezoidal block 15 is slidably connected to the top of the second sliding plate 11. An elastic component is provided on the outside of the first trapezoidal block 15. The elastic component includes a fixed plate 10 and a second circular rod 17. The fixed plate 10 is fixedly connected to the second sliding plate 11. The second circular rod 17 is fixedly connected to the outer wall of the fixed plate 10. The first trapezoidal block 15 is slidably sleeved on the outer wall of the second circular rod 17. A second spring 14 is movably sleeved on the outer wall of the second circular rod 17 for lifting. The drive mechanism includes a sliding rod 6 and a fixed frame 2. The sliding rod 6 is fixedly connected to the first slide plate 8, and a fixed block 5 is connected to the top of the sliding rod 6. The fixed frame 2 is fixedly connected to the top of the frame 1, and a second drive component 18 is fixedly connected to the top of the fixed frame 2. There are two first trapezoidal blocks 15 arranged horizontally and symmetrically. A first spring 13 is movably sleeved on the outer wall of the first circular rod 12. A stop rod 4 is fixedly connected to the output end of the second drive component 18. The second drive component 18 uses a commercially available hydraulic cylinder. The stop rod 4 is located above the fixed block 5. When the box 7 is stationary, the fixed block 5 abuts against the stop rod 4, and the second trapezoidal block 16 presses against the first slide plate 8. The trapezoidal block 15, the first trapezoidal block 15 and the second trapezoidal block 16 both have parallel smooth inclined surfaces on their outer walls. The second trapezoidal block 16 can compress the first trapezoidal block 15 to move horizontally. The second spring 14 is disposed between the two first trapezoidal blocks 15. The two first trapezoidal blocks 15 move away from each other, stretching the second spring 14. As the moving distance of the first trapezoidal block 15 increases, the compressive force of the second trapezoidal block 16 on the first trapezoidal block 15 increases, gradually increasing the compressive force on the first circular rod 12. The box body 7 is provided with two first circular rods 12. The bottom of each of the two first circular rods 12 is provided with a stop plate 9. The two stop plates 9 are used to... To reduce the local pressure on the workpiece adhering to the punch surface, in specific use: after the stamping work is completed, the box body 7 rises and remains stationary. The second driving component 18 drives the abutment rod 4 to move until the fixed block 5 abuts against the abutment rod 4. The box body 7 drives the second sliding plate 11 to continue moving. The second trapezoidal block 16 stretches the second spring 14 by squeezing the first trapezoidal block 15, gradually increasing the pressure on the first circular rod 12. The abutment plate 9 increases the pressure on the workpiece adhering to the punch surface, preventing the abutment plate 9 from directly squeezing and damaging the workpiece, reducing the phenomenon of warping or denting of the workpiece, and at the same time avoiding the abutment plate 9 scratching the surface of the workpiece.

[0020] In addition, the top of the mounting bracket 2 is fixedly connected to the first drive component 3, and the box body 7 is fixedly connected to the output end of the first drive component 3. The first drive component 3 uses a hydraulic cylinder that is already available on the market.

[0021] This embodiment also provides an automotive metal parts stamping machine, including the aforementioned auxiliary mechanism.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary mechanism, characterized in that, include: A frame (1) is provided with a sliding abutment (9) on the top of the frame (1), the abutment (9) being used to prevent the workpiece from being wrapped around the surface of the punch; Box (7), the box (7) is located above the frame (1), the box (7) is slidably connected to a second slide plate (11), the bottom of the second slide plate (11) is fixedly connected to a first circular rod (12), the bottom of the first circular rod (12) is fixedly connected to a stop plate (9); A lifting drive mechanism is provided inside the box (7) and is used to drive the bottom plate (9) to move. A buffer mechanism is provided inside the box (7) and is used to buffer the abutment (9).

2. The auxiliary mechanism according to claim 1, characterized in that, The buffer mechanism includes: The first slide plate (8) is slidably connected to the inner wall of the box (7), and the bottom of the first slide plate (8) is fixedly connected to the second trapezoidal block (16). The first trapezoidal block (15) is slidably connected to the top of the second slide plate (11), and an elastic component is provided on the outside of the first trapezoidal block (15).

3. The auxiliary mechanism according to claim 2, characterized in that, The elastic component includes: A fixing plate (10) is fixedly connected to the second sliding plate (11); The second circular rod (17) is fixedly connected to the outer wall of the fixed plate (10), the first trapezoidal block (15) is slidably sleeved on the outer wall of the second circular rod (17), and the second spring (14) is movably sleeved on the outer wall of the second circular rod (17).

4. The auxiliary mechanism according to claim 3, characterized in that, The lifting drive mechanism includes: A sliding rod (6) is fixedly connected to a first sliding plate (8), and a fixing block (5) is connected to the top of the sliding rod (6). A fixed frame (2) is fixedly connected to the top of the frame (1). A second driving member (18) is fixedly connected to the top of the fixed frame (2). A stop rod (4) is fixedly connected to the output end of the second driving member (18).

5. The auxiliary mechanism according to claim 4, characterized in that, The first trapezoidal block (15) consists of two blocks arranged horizontally and symmetrically, and the outer wall of the first circular rod (12) is movably sleeved with a first spring (13).

6. The auxiliary mechanism according to claim 5, characterized in that, The top of the fixed frame (2) is fixedly connected to the first driving component (3), and the box body (7) is fixedly connected to the output end of the first driving component (3).

7. A stamping machine for automotive metal parts, characterized in that, Includes an auxiliary mechanism as described in any one of claims 1-6.

Images