A clamping device for hardware manufacturing

Abstract

The utility model discloses a kind of clamping devices for hardware manufacturing, by reasonable layout fixed support, bottom plate, top plate and pair of clamping arm, and cooperate the collaborative design of hinged shaft, movable slot and reset spring, the stable reliable operation of clamping action is realized.The cooperation of driving assembly and movable slot can accurately drive clamping arm to rotate around hinged shaft, ensure the flexibility and controllability of opening and closing action, and the mutual approach elastic force applied to clamping arm by reset spring, not only can guarantee the stability of clamping state, but also can realize automatic reset after driving assembly unloading, simplify operation process.Overall structure design is compact and reasonable, adapt to the clamping needs of various hardware in hardware manufacturing process, effectively improve the convenience and efficiency of clamping operation, while each component is coordinated, stable operation, help to prolong the service life of device, expand the application range of device.

Description

Technical Field

[0001] This utility model relates to the field of hardware manufacturing equipment technology, and in particular to a clamping device for hardware manufacturing. Background Technology

[0002] In the hardware manufacturing industry, precise workpiece clamping is a crucial step in ensuring processing quality. Existing mechanical clamping devices generally use screw drives or eccentric wheel structures to achieve clamping actions. These devices have the following technical drawbacks: First, the transmission structure is highly complex, leading to increased equipment maintenance difficulty; second, the clamping force adjustment is not sensitive enough, easily causing deformation of thin-walled workpieces; third, most devices lack automatic reset functions, requiring manual intervention after each processing cycle before the next clamping, significantly reducing the working efficiency of automated production lines.

[0003] With the development of intelligent manufacturing technology, the market has placed higher demands on clamping devices. On the one hand, it is necessary to improve the response speed of clamping actions, and on the other hand, it is required to enhance the environmental adaptability of the device, especially to maintain stable performance under complex working conditions such as vibration and oil contamination. Traditional clamping mechanisms that rely on pure mechanical transmission can no longer meet the needs of modern manufacturing for flexible production, and there is an urgent need to develop new clamping devices with adaptive adjustment capabilities and rapid reset characteristics.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a clamping device for hardware manufacturing, which solves one or more problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a clamping device for hardware manufacturing, comprising a fixed bracket, a base plate, and a top plate, wherein the base plate and the top plate are arranged parallel to each other on the fixed bracket, and further comprising a return spring, a movable groove, and a pair of clamping arms; the base plate and the top plate are correspondingly provided with transversely extending movable grooves; the middle part of the clamping arm is hinged between the base plate and the top plate through a hinge shaft, and the end of the clamping arm extends into the movable groove and is provided with a driving component, the driving component being used to drive the clamping arm to rotate around the hinge shaft to achieve opening and closing; the return spring is provided between the front ends of the two clamping arms and applies an elastic force to the clamping arms to bring them closer together.

[0007] In one embodiment of the present invention, the driving assembly includes a wheel axle, a clamping wheel, and an opening and closing block. The wheel axle passes through the end of the clamping arm, the clamping wheel is rotatably mounted on the wheel axle, and the opening and closing block is provided between the two clamping wheels. The head of the opening and closing block has a triangular structure and is used to push the clamping wheel to move along the movable groove when moving.

[0008] In one embodiment of the present invention, a drive cylinder is further included. The drive cylinder is mounted on the fixed bracket, and its output shaft is fixedly connected to the opening and closing block for driving the opening and closing block to extend and retract between the two clamping arms.

[0009] In one embodiment of the present invention, the inner side of the clamping arm is provided with a mounting hole, and the two ends of the return spring are respectively accommodated in the mounting holes of the two clamping arms.

[0010] In one embodiment of the present invention, the bottom plate and the top plate are fixed to the fixed bracket by a first bolt, and the bottom plate and the top plate are fixedly connected by a second bolt.

[0011] In one embodiment of the present invention, the front end of the clamping arm is provided with an insertable sleeve for placing hardware parts.

[0012] In one embodiment of the present invention, the top end of the sleeve is provided with an inlet portion.

[0013] As described above, the clamping device for hardware manufacturing of this utility model has the following beneficial effects: by setting the drive component at the end of the clamping arm and guiding it with a movable groove, precise and stable control of the opening and closing of the clamping arm is achieved. Simultaneously, the return spring located between the front ends of the clamping arms allows the device to automatically return to the ready-to-clamp state after the drive is released, providing continuous elastic clamping force during the clamping process. This synergistic design of "end-driven, front-end elastic clamping" enables the device to combine the overall advantages of labor-saving operation, efficient opening and closing, adaptive clamping of the workpiece, and stable and reliable clamping, effectively improving the efficiency and quality of clamping operations in hardware manufacturing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of the clamping device for hardware manufacturing provided by this utility model; Figure 2 This is a partial structural schematic diagram of the clamping device for hardware manufacturing provided by this utility model.

[0016] Component designation explanation 1. Fixed bracket; 2. Base plate; 3. Top plate; 4. Return spring; 5. Movable groove; 6. Clamping arm; 7. Hinge shaft; 8. Wheel axle; 9. Clamping wheel; 10. Opening and closing block; 11. Drive cylinder; 12. Mounting hole; 13. First bolt; 14. Second bolt; 15. Sleeve; 16. Inlet part. Detailed Implementation

[0017] This utility model provides a clamping device for hardware manufacturing. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. In the description of this utility model, it should be understood that the terms "up, down, left, right," etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; they should not be construed as limitations on this utility model. Furthermore, the terms "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please see Figure 1 and Figure 2 This utility model provides a clamping device for hardware manufacturing, including a fixed bracket 1, a base plate 2, and a top plate 3. The base plate 2 and the top plate 3 are installed parallel to each other on the fixed bracket 1, forming a symmetrical frame structure. Between the base plate 2 and the top plate 3, a pair of clamping arms 6 are rotatably connected by a central hinge shaft 7, allowing the clamping arms 6 to open and close around the hinge shaft 7. The base plate 2 and the top plate 3 are each provided with a laterally extending movable groove 5. The end of the clamping arm 6 passes through the movable groove 5 and extends to the outside of the device, where a drive assembly is positioned. When the drive assembly is activated, it drives the end of the clamping arm 6 to slide along the movable groove 5, thereby causing the clamping arm 6 to rotate around the hinge shaft 7, realizing the opening or closing of the front clamping part. Simultaneously, a return spring 4 is provided between the front ends of the two clamping arms 6, and the return spring 4 always applies an elastic force to the two clamping arms 6 to open them apart.

[0019] The drive assembly specifically includes an axle 8, clamping wheels 9, and an opening / closing block 10. The axle 8 is transversely inserted through the end of the clamping arm 6 and is fixedly connected to the clamping arm 6; the clamping wheel 9 is sleeved on the axle 8 and can rotate freely relative to the axle 8. The clamping wheels 9 at the ends of the two clamping arms 6 are arranged opposite each other, with the opening / closing block 10 between them. The head of the opening / closing block 10 is designed with a triangular structure, with its tip facing the gap between the clamping wheels 9. When the opening / closing block 10 moves axially, its triangular head gradually inserts between the two clamping wheels 9, using the inclined plane to push the clamping wheels 9 on both sides outward, thereby driving the end of the clamping arm 6 to slide outward along the movable groove 5, causing the front end of the clamping arm 6 to open; conversely, when the opening / closing block 10 retracts, the return spring 4 causes the front end of the clamping arm 6 to close, and the clamping wheels 9 move inward and slide back to their original position along the inclined plane of the opening / closing block 10.

[0020] To achieve automatic driving of the opening / closing block 10, a drive cylinder 11 is installed on the fixed bracket 1. The cylinder body of the drive cylinder 11 is fixed to the body of the fixed bracket 1, and its output shaft is rigidly connected to the tail of the opening / closing block 10. When the drive cylinder 11 is vented and extended, it pushes the opening / closing block 10 forward and inserts it between the two clamping wheels 9, thereby opening the end of the clamping arm 6 and clamping the front end. When the drive cylinder 11 is vented and retracted, the opening / closing block 10 retracts, and the return spring 4 then drives the end of the clamping arm 6 to close and the front end to open. This achieves automated control of the clamping action, is suitable for assembly line operations, and improves operational efficiency and consistency.

[0021] To ensure stable installation of the return spring 4, a mounting hole 12 is provided on the inner side of each clamping arm 6 near the front end. The mounting hole 12 is a blind hole, and its size matches the end of the return spring 4. The two ends of the return spring 4 are respectively embedded in the mounting holes 12 corresponding to the two clamping arms 6, which not only prevents the spring from coming out or shifting during operation, but also ensures that the elastic force acts on the clamping arm 6 in a predetermined direction, effectively transmitting the closing force.

[0022] The base plate 2 and top plate 3 are fixed to the fixed bracket 1 by a first bolt 13. The first bolt 13 passes through the pre-drilled threaded hole in the bracket from the outside of the base plate 2 or top plate 3, or is tightened with a nut, to achieve a stable connection between the upper and lower plates and the bracket. Simultaneously, to enhance the overall rigidity between the base plate 2 and top plate 3, they are also directly connected by a second bolt 14. The second bolt 14 penetrates both the base plate 2 and top plate 3, forming a tension structure between them to prevent deformation under stress from affecting clamping accuracy.

[0023] In this embodiment, a pluggable sleeve 15 is provided at the front end of the clamping arm 6. The sleeve 15 is installed at the front end of the clamping arm 6 by interference fit, threaded connection, or snap-fit, which facilitates the replacement of different specifications of sleeve 15 according to the workpiece type. Hardware parts with holes to be clamped can be placed on the sleeve 15 to improve clamping adaptability. Specifically, a guide portion 16 is provided at the top end of the sleeve 15. When the hardware part approaches the sleeve 15, the guide portion 16 can guide the hardware part smoothly into the sleeve 15, reducing alignment difficulty and improving clamping efficiency, especially suitable for rapid positioning requirements in automated or semi-automated production lines.

[0024] In summary, the clamping device for hardware manufacturing of this utility model, by combining the guide structure of the movable slot 5, the layout of the hinged clamping arms 6, and the front-mounted return spring 4, effectively solves the problems of complex structure, slow response, and reliance on manual reset in traditional hardware manufacturing clamping equipment. The cooperation between the movable slot 5 and the hinge shaft 7 ensures the smoothness and guiding accuracy of the movement of the clamping arms 6, avoiding jamming or offset during movement; the elastic force of the return spring 4 automatically drives the front ends of the clamping arms 6 to move closer together, realizing the instantaneous restoration of the clamping state without the need for external power intervention, significantly improving the continuity of operation and production efficiency; at the same time, the precise control of the opening and closing action of the clamping arms 6 by the drive component enhances the adaptability of the device to different workpiece shapes and processing requirements, simplifying the overall mechanical structure while greatly improving the reliability and stability of the clamping process, providing an efficient and low-maintenance solution for automated processing of hardware parts. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0025] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A clamping device for hardware manufacturing, comprising a fixed bracket, a base plate, and a top plate, wherein the base plate and the top plate are arranged parallel to each other on the fixed bracket, characterized in that, It also includes a return spring, a movable groove, and a pair of clamping arms; The bottom plate and the top plate are respectively provided with horizontally extending movable grooves; The middle part of the clamping arm is hinged between the bottom plate and the top plate via a hinge shaft. The end of the clamping arm extends into the movable groove and is provided with a drive assembly. The drive assembly is used to drive the clamping arm to rotate around the hinge shaft to achieve opening and closing. The return spring is located between the front ends of the two clamping arms and applies an elastic force to the clamping arms to bring them closer together.

2. The clamping device for hardware manufacturing according to claim 1, characterized in that, The drive assembly includes an axle, clamping wheels, and an opening / closing block. The axle passes through the end of the clamping arm, and the clamping wheels are rotatably mounted on the axle. The opening / closing block is located between the two clamping wheels. The head of the opening / closing block has a triangular structure and is used to push the clamping wheels along the movable groove when moving.

3. The clamping device for hardware manufacturing according to claim 2, characterized in that, It also includes a drive cylinder, which is mounted on the fixed bracket and its output shaft is fixedly connected to the opening and closing block, for driving the opening and closing block to extend and retract between the two clamping arms.

4. The clamping device for hardware manufacturing according to claim 1, characterized in that, The clamping arm has mounting holes on its inner side, and the two ends of the return spring are respectively housed in the mounting holes of the two clamping arms.

5. The clamping device for hardware manufacturing according to claim 1, characterized in that, The bottom plate and the top plate are fixed to the fixed bracket by the first bolt, and the bottom plate and the top plate are fixedly connected by the second bolt.

6. The clamping device for hardware manufacturing according to claim 1, characterized in that, The front end of the clamping arm is provided with a pluggable sleeve for placing hardware parts.

7. The clamping device for hardware manufacturing according to claim 6, characterized in that, The top end of the sleeve is provided with an inlet.

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