Punching module and punching machine

Abstract

The utility model relates to the field of machine tools, and particularly discloses an adjusting mechanism of a machine tool sliding assembly, a punching module and a punching machine. Wherein the adjusting mechanism comprises a guide column, a piston, an adjusting screw rod and an adjusting driving unit, an adjusting hole is formed in the guide column, and the adjusting hole comprises a limiting subsection; the piston is arranged in the limiting section in a sliding mode and limited in the circumferential direction. One end of the adjusting screw rod is an adjusting end, the other end of the adjusting screw rod is a connecting end, and the adjusting end is inserted into the adjusting hole and is in threaded connection with the piston; and the adjusting driving unit is used for driving the adjusting screw rod to rotate. According to the adjusting mechanism, an existing punching machine structure is slightly changed, and the adjusting mechanism has the advantages of being simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of machine tools, specifically to an adjustment mechanism for a sliding component of a machine tool, a stamping module, and a punch press. Background Technology

[0002] A punch press is a mechanical device primarily used for blanking, punching, and forming sheet metal. It is widely used in the stamping and forming of electronic products, home appliances, furniture, and hardware parts. Its working principle involves applying pressure to the material using a specific die, causing plastic deformation to achieve the required shape and precision. When changing the type or model of products being processed, the punch press often needs to be replaced with a different die. Different dies have different processing heights, necessitating adjustments to the die height.

[0003] Chinese invention patent application CN 114029400A discloses a die height adjustment device for a punch press used in the production and processing of a dual-control three-jaw puller. The device includes a die height adjustment mechanism for a three-jaw puller punch press, comprising a base, a transverse pushing mechanism, a stamping die, and a multi-stage die height adjustment mechanism. The left end of the base is slidably connected to the transverse pushing mechanism, and the right end is fixed with a support plate. The transverse pushing mechanism includes a vertically supported plate and a hydraulic cylinder fixed to the top of the plate. A guide groove is provided in the middle of the base, and a slider is slidably arranged within the guide groove. A screw is threaded through the slider, and a drive motor is mounted on the outer end of the screw. The drive motor is mounted on the support plate, and its power output end is connected to the end of the screw. This device enables automated multi-stage adjustment of the die height, offering advantages such as flexible adjustment and a high degree of automation.

[0004] However, although the aforementioned die height adjustment device for punch presses can achieve die height adjustment, its structure is relatively complex and its size is large, making it difficult to widely use on general-purpose punch presses. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an adjustment mechanism for a machine tool sliding component, a stamping module and a punch press, which requires little modification to the existing punch press structure and has the advantages of simple structure and convenient operation.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustment mechanism for a machine tool sliding assembly, comprising a guide post, a piston, an adjustment screw, and an adjustment drive unit, wherein the guide post is provided with an adjustment hole, and the adjustment hole includes a limiting segment; the piston is slidably disposed within the limiting segment and is circumferentially limited.

[0007] One end of the adjusting screw is the adjusting end, and the other end is the connecting end. The adjusting end is inserted into the adjusting hole and threadedly connected to the piston. The adjusting drive unit is used to drive the adjusting screw to rotate.

[0008] When adjustment is required, the adjustment drive unit drives the adjustment screw to rotate. Due to the circumferential limitation of the piston, the rotation of the adjustment screw is converted into the axial movement of the adjustment screw relative to the piston, thereby adjusting the axial position of the adjustment screw relative to the guide post.

[0009] When the above-mentioned adjustment mechanism is used in a punch press, the guide post is connected to the upper die, and the upper die and the guide post together limit the piston axially. The axial adjustment of the screw relative to the piston can be equivalent to the adjustment of the overall length of the screw and the guide post, thereby adjusting the height of the upper die.

[0010] Preferably, the piston is provided with a circumferential limiting groove, and the guide post is provided with a circumferential limiting block that matches the circumferential limiting groove.

[0011] The circumferential limiting groove and the circumferential limiting block work together to achieve circumferential limiting of the piston.

[0012] Preferably, the adjustment drive unit includes a driving gear and a driven gear, wherein the driven gear meshes with the driving gear; the driven gear is coaxially arranged with the adjustment screw and rotates synchronously.

[0013] Preferably, the adjustment drive unit further includes an adjustment drive component, which is connected to the drive gear and drives the drive gear to rotate.

[0014] Preferably, the adjustment drive unit further includes an adjustment indicator, which is used to detect the amount of movement of the adjustment drive unit.

[0015] A stamping module includes a module and a stamping drive mechanism. The module includes an upper die and a lower die. The stamping drive mechanism includes a stamping drive component, a crankshaft, and a connecting rod. The connecting rod is hinged to the crankshaft. The stamping drive component is used to drive the crankshaft to rotate.

[0016] It also includes the adjustment mechanism described above, wherein the connecting end of the adjustment screw is provided with a ball pocket hole, one end of the connecting rod is provided with a ball head, the ball head is inserted into the ball pocket hole, and the opening of the ball pocket hole is provided with a locking cap.

[0017] The connecting rod is connected to the screw via a ball joint, enabling hinged transmission and providing conditions for adjusting the screw's rotation. The stamping module of this application requires minimal modification to the existing punch press structure and offers advantages such as simple structure and convenient operation.

[0018] Preferably, the adjustment hole is provided through the guide post along the axial direction, the guide post is fixedly connected to the upper mold, the limiting segment is located at the end of the guide post connected to the upper mold, and the lower mold and the guide post together axially limit the piston.

[0019] Preferably, the adjustment drive unit is connected to the locking cover.

[0020] Preferably, the limiting segment includes a small diameter segment and a large diameter segment, and the piston includes a first segment and a second segment; the first segment matches the small diameter segment and slides to seal; the second segment matches the large diameter segment and slides to seal; the second segment forms an internal pressure locking cavity within the large diameter segment.

[0021] When the machine tool is operating normally, hydraulic oil fills the internal pressure locking chamber, pulling the piston tight and locking the adjusting screw and connecting rod, preventing rotation. The overall length of the adjusting screw and guide post is then determined. When length adjustment is required, the internal pressure locking chamber is depressurized, allowing the adjusting screw to rotate relative to the connecting rod. Length adjustment is then performed under the drive of the adjustment drive unit.

[0022] A punch press includes a frame and a punching module as described above. The punching drive and the lower die are fixedly mounted on the frame. The crankshaft is rotatably connected to the frame. The guide post and the lower die are slidably mounted on the frame. Attached Figure Description

[0023] Figure 1 This is a partial structural diagram of the punch press in this embodiment;

[0024] Figure 2 This is a partial front view of the punch press in this embodiment;

[0025] Figure 3 This is a cross-sectional view of the stamping module in the punch press of this embodiment;

[0026] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the piston structure in the punch press of this embodiment. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example

[0029] like Figure 1 and Figure 2As shown, a punch press includes a frame and a punching module. The punching module includes a module and a punching drive mechanism. The module includes an upper die 3 and a lower die. The punching drive mechanism includes a punching drive component, a crankshaft 12, and a connecting rod 11. The connecting rod 11 is hinged to the crankshaft 12. The punching drive component drives the crankshaft 12 to rotate. The punching drive component and the lower die are fixedly mounted on the frame. The crankshaft 12 is rotatably connected to the frame, and the lower die is slidably mounted on the frame.

[0030] like Figures 1-4 As shown, the stamping module also includes an adjustment mechanism, which comprises a guide post 22, a piston 24, an adjustment screw 21, and an adjustment drive unit 23. The guide post 22 has an adjustment hole, which includes a limiting segment. The piston 24 is slidably disposed within the limiting segment and is circumferentially limited. The guide post 22 is slidably disposed on the frame. Specifically, as... Figure 5 As shown, the piston 24 is provided with a circumferential limiting groove 243, and the guide post 22 is provided with a circumferential limiting block that matches the circumferential limiting groove 243. The circumferential limiting groove 243 and the circumferential limiting block cooperate to achieve circumferential limiting of the piston 24.

[0031] like Figure 3 and Figure 4 As shown, one end of the adjusting screw 21 is an adjusting end, and the other end is a connecting end. The adjusting end is inserted into the adjusting hole and threadedly connected to the piston 24. The connecting end of the adjusting screw 21 is provided with a ball pocket hole, and one end of the connecting rod 11 is provided with a ball head 111. The ball head 111 is inserted into the ball pocket hole, and a locking cover 211 is provided at the opening of the ball pocket hole. The adjusting drive unit 23 is used to drive the adjusting screw 21 to rotate. Specifically, the adjusting drive unit 23 includes a driving gear 231 and a driven gear, and the driven gear meshes with the driving gear 231. The driven gear is rotatably mounted on the frame, and the driven gear is connected to the locking cover 211. The driven gear and the adjusting screw 21 are coaxially arranged and rotate synchronously. The adjusting drive unit 23 also includes an adjusting drive component 232, which is connected to the driving gear 231 and drives the driving gear 231 to rotate.

[0032] like Figure 3 and Figure 4 As shown, specifically, the adjustment hole is provided through the guide post 22 along the axial direction. The guide post 22 is fixedly connected to the upper mold 3. The limiting segment is located at the end of the guide post 22 that is connected to the upper mold 3. The lower mold and the guide post 22 together axially limit the piston 24.

[0033] When adjustment is required, the adjustment drive unit 23 drives the adjustment screw 21 to rotate. Due to the circumferential limitation of the piston 24, the rotation of the adjustment screw 21 is converted into axial movement of the adjustment screw 21 relative to the piston 24, thereby adjusting the axial position of the screw 21 relative to the guide post 22. The axial adjustment of the screw relative to the piston 24 can be equivalent to the adjustment of the overall length of the screw and the guide post 22, thus achieving the function of adjusting the height of the upper mold 3.

[0034] The connecting rod 11 is connected to the screw through the ball head 111, which creates conditions for the rotation adjustment of the screw while realizing the articulated transmission.

[0035] like Figure 3 and Figure 4 As shown, specifically, the adjustment drive unit 23 further includes an adjustment indicator 233, which is used to detect the amount of movement of the adjustment drive unit 23. Specifically, the adjustment drive component 232 is an operating gear, which meshes with the drive gear 231. The adjustment indicator 233 is used to monitor the rotation of the operating gear, providing a basis for calculating the adjustment range of the adjustment screw 21.

[0036] like Figures 3-5 As shown, specifically, the limiting segment includes a small-diameter segment and a large-diameter segment, and the piston 24 includes a first segment 241 and a second segment 242. The first segment 241 matches the small-diameter segment and slides to seal. The second segment 242 matches the large-diameter segment and slides to seal. The second segment 242 forms an internal pressure locking cavity 25 within the large-diameter segment.

[0037] When the machine tool is working normally, hydraulic oil is filled into the internal pressure locking chamber 25, which tightens the piston 24 and locks the adjusting screw 21 and connecting rod 11, preventing them from rotating. The overall length of the adjusting screw 21 and guide post 22 is then determined. When length adjustment is required, the pressure in the internal pressure locking chamber 25 is released, allowing the adjusting screw 21 to rotate relative to the connecting rod 11. Length adjustment is then performed under the drive of the adjustment drive unit 23.

[0038] The stamping module of this application requires minimal modification to the existing punch press structure and has the advantages of simple structure and convenient operation.

[0039] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. A stamping module, comprising a module and a stamping drive mechanism, wherein the module comprises an upper die and a lower die, and the stamping drive mechanism comprises a stamping drive component, a crankshaft and a connecting rod, wherein the connecting rod is hinged to the crankshaft, and the stamping drive component is used to drive the crankshaft to rotate; Its features are: It also includes an adjustment mechanism, which comprises a guide post, a piston, an adjustment screw, and an adjustment drive unit. The guide post has an adjustment hole, which includes a limiting segment. The piston is slidably disposed within the limiting segment and is circumferentially limited. One end of the adjusting screw is the adjusting end, and the other end is the connecting end. The adjusting end is inserted into the adjusting hole and threadedly connected to the piston. The adjusting drive unit is used to drive the adjusting screw to rotate. The connecting end of the adjusting screw is provided with a ball pocket hole, and one end of the connecting rod is provided with a ball head. The ball head is inserted into the ball pocket hole, and a locking cap is provided at the opening of the ball pocket hole.

2. The stamping module according to claim 1, characterized in that: The piston is provided with a circumferential limiting groove, and the guide post is provided with a circumferential limiting block that matches the circumferential limiting groove.

3. The stamping module according to claim 1 or 2, characterized in that: The adjustment drive unit includes a driving gear and a driven gear, wherein the driven gear meshes with the driving gear; the driven gear is coaxially arranged with the adjustment screw and rotates synchronously.

4. The stamping module according to claim 3, characterized in that: The adjustment drive unit further includes an adjustment drive component, which is connected to the drive gear and drives the drive gear to rotate.

5. The stamping module according to claim 4, characterized in that: The adjustment drive unit further includes an adjustment indicator, which is used to detect the amount of movement of the adjustment drive unit.

6. The stamping module according to claim 1, characterized in that: The adjustment hole is provided axially through the guide post, the guide post is fixedly connected to the upper mold, the limiting segment is located on the guide post at the end connected to the upper mold, and the lower mold and the guide post together axially limit the piston.

7. The stamping module according to claim 1, characterized in that: The adjustment drive unit is connected to the locking cover.

8. The stamping module according to claim 1, characterized in that: The limiting segment includes a small diameter segment and a large diameter segment, and the piston includes a first segment and a second segment; the first segment matches the small diameter segment and slides to seal; the second segment matches the large diameter segment and slides to seal; the second segment forms an internal pressure locking cavity within the large diameter segment.

9. A punch press, comprising a frame, characterized in that: It also includes a stamping module as described in any one of claims 1-8, wherein the stamping drive and the lower die are fixedly mounted on the frame, the crankshaft is rotatably connected to the frame, and the guide post and the lower die are slidably mounted on the frame.

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