Clamping device for punching machine

Abstract

The utility model relates to the technical field of punching machine clamping, and discloses a clamping device for a punching machine, which comprises a base, a bolt is in threaded connection with the inside of the base, a driving component is arranged on one side of the base and is used for driving the bolt to rotate, one end of the bolt is fixedly connected with a ball body I, and the outer wall of the ball body I is rotatably connected with a ball sleeve. A clamping plate is fixedly connected to the outer wall of the ball sleeve, protruding blocks are fixedly connected to the two sides of the clamping plate, a first limiting column is fixedly connected to the interior of the base, and a sliding block is slidably connected to the outer wall of the first limiting column. According to the clamping device, the bolt is connected with the ball sleeve on the clamping plate through the first ball body at one end, the clamping plate clamps the workpieces, the protruding blocks on the two sides of the clamping plate can be attached to the workpieces of different shapes, the effects of adapting to the workpieces of different shapes and facilitating clamping block replacement are achieved, and the problem that clamping and positioning between the workpieces of different shapes cannot be met is solved; and the adaptability of the clamping device for the punching machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punch press clamping, in particular to a clamping device for a punch press. Background Art

[0002] A punch press is a mechanical device that uses a stamping die to process metal materials. Mechanical force or a hydraulic system is used to rapidly press the upper die against the lower die, deforming or shearing the material to the desired shape or size. Punching presses are widely used in the manufacture of various metal parts, such as sheet metal, automotive components, and appliance housings. During the stamping process, the workpiece or die must remain stationary, otherwise machining deviations will occur, affecting the quality of the finished product. Therefore, a clamping device is required for punch presses. The clamping device can firmly secure the workpiece to prevent movement or vibration.

[0003] There are many types of clamping devices, including mechanical clamps, hydraulic clamps, pneumatic clamps and electric clamps. These clamps can be used individually or in combination according to different application scenarios and needs to ensure that the punch press can achieve efficient and precise processing under various process conditions. In electric clamps, the clamping mechanism is driven by a motor to achieve automatic clamping operation. The motor drives the lead screw and converts the motor's rotational motion into linear movement or rotation of the clamping jaws, thereby clamping or releasing the workpiece.

[0004] However, existing electric clamps have certain limitations in practical applications. When faced with workpieces of different shapes or sizes, the clamping and positioning effects of electric clamps are poor. Electric clamps usually drive the jaws through a motor and use a screw or gear system to convert the motor's rotational motion into linear or rotational motion of the jaws to achieve clamping of the workpiece. However, the jaws of this type of clamp are usually pre-designed fixed shapes that are suitable for workpieces of specific sizes or shapes. When it is necessary to clamp workpieces of different shapes or sizes, the shape and motion trajectory of the jaws cannot flexibly adapt to these changes. Since the jaws cannot automatically adjust their contact surface according to the shape of the workpiece, the contact between the clamping surface and the workpiece is insufficient and only contacts in some areas, resulting in uneven distribution of clamping force and unstable clamping. In addition, since the clamping angle or position of the jaws cannot be adjusted, the workpiece will be displaced or rotated during the clamping process, further increasing the processing error. This limitation not only affects the stability of the clamping, but also directly affects the quality and efficiency of the overall processing. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a clamping device for a punch press, which aims to improve the problem that the clamping device for a punch press cannot meet the clamping and positioning requirements between workpieces of different shapes when fixing the workpieces.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a clamping device for a punch press, comprising a base, a bolt is connected to the inner thread of the base, a driving assembly is provided on one side of the base, and the driving assembly is used to drive the bolt to rotate, one end of the bolt is fixedly connected to a sphere 1, the outer wall of the sphere 1 is rotatably connected to a ball sleeve, the outer wall of the ball sleeve is fixedly connected to a splint, both sides of the splint are fixedly connected to bumps, a limiting column 1 is fixedly connected to the inner part of the base, a slider is slidably connected to the outer wall of the limiting column 1, the outer wall of the slider is rotatably connected to a support rod, and one end of the support rod is rotatably connected to a sphere 2, the outer wall of the sphere 2 is embedded in the ball sleeve, and the outer wall of the limiting column 1 is provided with a reset assembly, and the reset assembly is used to drive the slider to reset;

[0007] The reset assembly includes a first spring, which is sleeved on an outer wall of the limiting column. One end of the first spring is fixedly connected to the inside of the base, and the other end of the first spring is fixedly connected to one end of the slider.

[0008] As a further description of the above technical solution:

[0009] The driving assembly includes a telescopic rod and a motor, one end of the telescopic rod is fixedly connected to one side of the base, the other end of the telescopic rod is fixedly connected to the outer wall of the motor, and the output end of the motor is connected to a bolt.

[0010] As a further description of the above technical solution:

[0011] A sliding groove is provided inside the base, and a clamping groove arranged in a straight line is provided inside the base.

[0012] As a further description of the above technical solution:

[0013] A limiting block is provided inside the base, and the limiting block is slidably connected inside the sliding groove.

[0014] As a further description of the above technical solution:

[0015] One side of the limit block is fixedly connected to the second limit column, and the inside of the limit block is fixedly connected to the third limit column.

[0016] As a further description of the above technical solution:

[0017] The three outer walls of the limit column are slidably connected to symmetrically arranged connecting plates, and the interior of the connecting plates is rotatably connected to a connecting rod.

[0018] As a further description of the above technical solution:

[0019] One end of the connecting rod is rotatably connected to a clamping block, and the clamping block is engaged with the clamping slot.

[0020] As a further description of the above technical solution:

[0021] The three outer walls of the limiting column are sleeved with a second spring, one end of the second spring is fixedly connected to the inside of the limiting block, and the other end of the second spring is fixedly connected to one side of the connecting plate.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, first, the bolt is connected to the ball sleeve on the clamping plate through the ball at one end, and the workpiece is clamped by the clamping plate. The protrusions on both sides of the clamping plate can fit workpieces of different shapes, thereby achieving the effect of adapting to workpieces of different shapes and facilitating the replacement of clamping blocks. It solves the problem that auxiliary equipment cannot meet the clamping and positioning requirements between workpieces of different shapes when the workpiece is in the clamping position, and improves the adaptability of the clamping device for the punch press.

[0024] 2. In the utility model, the second limit column drives the limit block to slide in the slide groove, and the clamping block in the slide groove is connected to the outer wall of the third limit column through a connecting rod and a connecting plate, so that the clamping block extends out of the limit block and is embedded in the clamping groove, thereby achieving the effect of limiting the workpiece, solving the problem that it is inconvenient to position the two sides when clamping the workpiece, and improving the practicality of the clamping device for the punch press. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A three-dimensional diagram of the clamping device for a punch press proposed in the present invention;

[0027] Figure 2 This is a schematic diagram of the spherical structure of the clamping device for a punch press proposed in the present invention;

[0028] Figure 3 This is a schematic diagram of the clamping plate structure of the clamping device for a punch press proposed in the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the base of the clamping device for a punch press proposed in the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of the limit block of the clamping device for a punch press proposed in the present invention;

[0031] Figure 6 for Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0032] Legend:

[0033] 1. Base; 2. Telescopic rod; 3. Motor; 4. Bolt; 5. Sphere 1; 6. Clamp; 7. Bump; 8. Ball sleeve; 9. Limit column 1; 10. Slider; 11. Support rod; 12. Sphere 2; 13. First spring; 14. Slide; 15. Slot; 16. Limit block; 17. Limit column 2; 18. Limit column 3; 19. Connecting rod; 20. Block; 21. Second spring; 22. Connecting plate. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0037] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0038] Reference Figure 1-Figure 3The utility model provides an embodiment of a clamping device for a punching machine, comprising a base 1, wherein the base 1 is internally connected to a bolt 4 through a threaded connection, and the rotation of the bolt 4 can enable the displacement adjustment within the base 1, thereby achieving adaptation to workpieces of different sizes. A driving assembly is provided on one side of the base 1, and the driving assembly is used to drive the rotation of the bolt 4, thereby driving the bolt 4 to move forward and backward along its threaded axis, thereby adjusting the position of the splint 6, and a ball 5 is fixedly connected to one end of the bolt 4, and the ball 5 is rotatably connected to the ball sleeve 8 through its outer wall. The design of the ball 5 enables the bolt 4 to maintain a stable connection with the ball sleeve 8 during rotation, without affecting the angle adjustment of the splint 6, and the outer wall of the ball sleeve 8 is fixedly connected to the splint 6, and the splint 6 is used to clamp the workpiece, and both sides of the splint 6 are fixedly connected with convex The design of block 7 and protrusion 7 enables the splint 6 to fit workpieces of different shapes more firmly, ensuring the clamping stability. A limiting column 9 is also fixedly connected to the inside of the base 1. The function of the limiting column 9 is to provide a sliding guide for the slider 10 to ensure that the clamping device does not deviate during operation. The outer wall of the limiting column 9 is slidably connected to the slider 10. The sliding of the slider 10 can effectively adjust the position and angle of the splint 6 to adapt to workpieces of different shapes and sizes. The outer wall of the slider 10 is rotatably connected to the support rod 11. One end of the support rod 11 is connected to the slider 10, and the other end is rotatably connected to the ball 2 12. The outer wall of the ball 2 12 is engaged with the ball sleeve 8, ensuring that the splint 6 can be adaptively adjusted according to the shape of the workpiece during the clamping process, thereby enhancing the adaptability of the equipment to different workpieces.

[0039] The reset assembly includes a first spring 13, which is sleeved on the outer wall of the limit column 9. One end of the first spring 13 is fixedly connected to the inside of the base 1, and the other end is fixedly connected to one end of the slider 10. When the slider 10 deviates during operation, the first spring 13 can generate a reset force to restore the slider 10 to its initial position, ensuring the stability and operation convenience of the equipment. The driving assembly includes a telescopic rod 2 and a motor 3. One end of the telescopic rod 2 is fixedly connected to one side of the base 1. The length change of the telescopic rod 2 enables the relative position of the motor 3 to be adjusted to adapt to the size and shape of different workpieces. The other end of the telescopic rod 2 is fixedly connected to the outer wall of the motor 3. The output end of the motor 3 is connected to the bolt 4. The rotation output of the motor 3 can drive the rotation of the bolt 4, thereby adjusting the clamping device to achieve precise clamping of the workpiece. The outer wall of the limit column 9 is sleeved with a reset assembly, which is used to reset the slider 10 to its initial position after the operation is completed;

[0040] Specifically, the output end of motor 3 drives bolt 4 to rotate. Since bolt 4 partially extends into base 1 during rotation, motor 3 is connected to base 1 via telescopic rod 2. Therefore, when bolt 4 moves, telescopic rod 2 contracts, thereby driving motor 3 and bolt 4 to move synchronously. Bolt 4 is connected to ball sleeve 8 on clamp 6 via ball sleeve 1 5 at one end. Therefore, when bolt 4 rotates within ball sleeve 8, it does not cause clamp 6 to rotate along with it. Clamp 6 can then firmly clamp the workpiece. The bumps 7 on either side of clamp 6 can fit workpieces of different shapes. When the workpiece is asymmetrical, during the fitting process, clamp 6 is connected to ball sleeve 2 12 on both sides via ball sleeve 8. Clamp 6 is then positioned on the outer wall of limit column 1 9 via support rod 11 and slider 10. At the same time, the tension of first spring 13 ensures that clamp 6 remains stably positioned and provides auxiliary support even when tilted. When the splint 6 needs to be replaced to adapt to various types and shapes of workpieces, it is only necessary to separate the ball sleeve 8 from the ball 5 on the splint 6 to quickly install other types of splints 6, thereby achieving the effect of adapting to workpieces of different shapes and simplifying the replacement of the splint 6, thereby improving operational convenience and work efficiency.

[0041] Reference Figure 4-Figure 6The base 1 is provided with a slide groove 14, which is used for the sliding guide of the limit block 16 to ensure that the limit block 16 slides in a straight line inside the base 1 and maintains a stable operating state. The base 1 is also provided with a linearly arranged card groove 15, which is used to cooperate with the card block 20 so that the limit device can be locked in a specific position, thereby ensuring the positioning accuracy of the workpiece. The limit block 16 is slidably connected to the inside of the slide groove 14. The sliding movement of the limit block 16 can drive the movement of the entire positioning mechanism to adapt to workpieces of different sizes. , one side of the limit block 16 is fixedly connected to the limit column 2 17, and the limit column 2 17 plays a role in providing limit support in the slide groove 14 by cooperating with other components. The limit block 16 is internally fixedly connected to the limit column 3 18. The function of the limit column 3 18 is to provide support for the sliding of the connecting plate 22, and the sliding connection of the limit column 3 18 ensures that the connecting plate 22 can operate stably, thereby driving the limit function of the entire clamping mechanism. The outer wall of the limit column 3 18 is slidably connected with a symmetrically arranged connecting plate 22, and the connecting plate 22 is structurally The symmetrical arrangement ensures uniform force during the clamping and limiting process without offset. The connecting plate 22 is internally connected to a connecting rod 19 for connecting the card block 20 and the connecting plate 22, so that the movement of the card block 20 is synchronized with the connecting plate 22, thereby realizing the limiting and unlocking operations. One end of the connecting rod 19 is rotatably connected to the card block 20, which is embedded in the card slot 15. When the limiting block 16 slides to a specific position, the card block 20 can extend into the card slot 15 to fix the limiting block 16. The card block 20 and the card slot 15 are embedded. The combined design ensures that the positioning device can be accurately locked in the required position during operation, avoiding accidental movement of the limit block 16. The outer wall of the limit column 3 18 is provided with a second spring 21. The function of the second spring 21 is to provide a rebound force for the limit mechanism so that the block 20 can be quickly reset when needed. One end of the second spring 21 is fixedly connected to the inside of the limit block 16, and the other end is fixedly connected to one side of the connecting plate 22. The tension of the spring ensures that the block 20 can remain in the reset state when not in use, avoiding the limit block 16 from loosening during operation.

[0042] Specifically, the position of the limiting column 17 can be flexibly adjusted according to the size or position of the workpiece to be installed. The specific operation is that the limiting block 16 is driven to slide smoothly in the slide groove 14 by pushing the limiting column 17, and the block 20 in the slide groove 14 is firmly connected to the connecting plate 22 through the connecting rod 19, ensuring that the block 20 always maintains a limiting effect on the outer wall of the limiting column 18. At the same time, the elastic force of the second spring 21 provides tension support for the block 20, so that the block 20 can naturally extend out of the limiting block 16 and be firmly embedded in the inside of the card slot 15. In this way, the limiting block 16 accurately limits the positioning of the limiting column 17, ensuring the stability and safety of the workpiece during the installation process, and finally achieving the purpose of effectively limiting the workpiece, ensuring the smooth progress of the entire installation process.

[0043] Working principle: When using the workpiece processing and forming auxiliary equipment, first adjust the position of the limit column 2 17 according to the workpiece to be installed, and only need to drive the limit block 16 to slide in the slide groove 14 through the limit column 2 17. The block 20 in the slide groove 14 is connected to the outer wall of the limit column 3 18 through the connecting rod 19 and the connecting plate 22, and is supported by the tension of the second spring 21, so that the block 20 extends out of the limit block 16 and is embedded in the card slot 15, and then the limit column 2 17 is limited by the limit block 16, so as to achieve the effect of limiting the workpiece, and then the output end of the motor 3 drives the bolt 4 to rotate. Since the bolt 4 will extend into the base 1 when it rotates, the motor 3 and the base 1 are connected by the telescopic rod 2. Therefore, when the bolt 4 is displaced, the telescopic rod 2 contracts, thereby synchronizing the motor 3 and the bolt 4. When the workpiece is asymmetrical, the two sides of the splint 6 are connected with the ball 2 12 through the ball sleeve 8 and the support rod 11 and the slider 10 are limited on the outer wall of the limit column 9, and the tension support of the first spring 13 is used to limit the splint 6 when it is tilted, and provide auxiliary support. When the splint 6 needs to be replaced to adapt to various types of workpieces, it is only necessary to separate the ball sleeve 8 from the ball 15 through the splint 6, and then different types of splints 6 can be installed, thereby achieving the effect of adapting to workpieces of different shapes and facilitating the replacement of the splint 6.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clamping device for a punch press, comprising a base (1), characterized in that: The base (1) is internally threadedly connected with a bolt (4), and a driving assembly is provided on one side of the base (1), and the driving assembly is used to drive the bolt (4) to rotate, and one end of the bolt (4) is fixedly connected with a sphere (5), and the outer wall of the sphere (5) is rotatably connected with a ball sleeve (8), and the outer wall of the ball sleeve (8) is fixedly connected with a clamping plate (6), and both sides of the clamping plate (6) are fixedly connected with bumps (7), and the base (1) is internally fixedly connected with a limiting column (9), and the outer wall of the limiting column (9) is slidably connected with a slider (10), and the outer wall of the slider (10) is rotatably connected with a support rod (11), and one end of the support rod (11) is rotatably connected with a sphere (12), and the outer wall of the sphere (12) is engaged with the ball sleeve (8), and the outer wall of the limiting column (9) is provided with a reset assembly, and the reset assembly is used to drive the slider (10) to reset; The reset assembly includes a first spring (13), the first spring (13) is sleeved on the outer wall of the limiting column (9), one end of the first spring (13) is fixedly connected to the inside of the base (1), and the other end of the first spring (13) is fixedly connected to one end of the slider (10).

2. The clamping device for a punch press according to claim 1, characterized in that: The driving assembly comprises a telescopic rod (2) and a motor (3); one end of the telescopic rod (2) is fixedly connected to one side of the base (1); the other end of the telescopic rod (2) is fixedly connected to the outer wall of the motor (3); and the output end of the motor (3) is connected to a bolt (4).

3. The clamping device for a punch press according to claim 1, wherein: A sliding groove (14) is provided inside the base (1), and clamping grooves (15) arranged in a straight line are provided inside the base (1).

4. The clamping device for a punch press according to claim 1, wherein: A limiting block (16) is provided inside the base (1), and the limiting block (16) is slidably connected inside the sliding groove (14).

5. The clamping device for a punch press according to claim 4, characterized in that: One side of the limit block (16) is fixedly connected to the second limit column (17), and the inside of the limit block (16) is fixedly connected to the third limit column (18).

6. The clamping device for a punch press according to claim 5, characterized in that: The outer wall of the limiting column three (18) is slidably connected to a symmetrically arranged connecting plate (22), and the interior of the connecting plate (22) is rotatably connected to a connecting rod (19).

7. The clamping device for a punch press according to claim 6, characterized in that: One end of the connecting rod (19) is rotatably connected to a clamping block (20), and the clamping block (20) is engaged with the clamping slot (15).

8. The clamping device for a punch press according to claim 5, characterized in that: The outer wall of the limiting column (18) is provided with a second spring (21), one end of the second spring (21) is fixedly connected to the inside of the limiting block (16), and the other end of the second spring (21) is fixedly connected to one side of the connecting plate (22).

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