Workpiece clamping jig
By designing a workpiece clamping fixture including a base plate, a shell frame, a rotary frame and an adjustment unit, a worm gear and worm transmission system driven by a combination of mobile clamping blocks and compression springs is used to solve the problem of difficult control of clamping force and low angle adjustment accuracy in traditional workpiece clamping methods, rapid clamping and precise angle adjustment are achieved, and machining efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202422343409.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The traditional workpiece clamping method has problems such as long clamping time, difficult clamping force, and low angle adjustment accuracy, resulting in limited processing efficiency and accuracy, and the existing improved fixtures are complex in structure, cumbersome in operation, and poor adaptability.
The workpiece clamping fixture design is adopted, including a base plate, a shell frame, a rotary frame, an adjustment unit and a clamping unit. The combination of a mobile clamp and a compression spring is used to achieve rapid clamping. The precise rotation and angle adjustment of the workpiece is achieved through the coordination of the motor-driven worm gear and the pointer disc scale line.
It realizes rapid clamping and fixing of workpieces, reduces operation difficulty, improves machining efficiency and accuracy, simplifies the operation process, and ensures the accuracy of rotation angle.
Smart Images
Figure CN223146188U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slow wire cutting machine tool processing, in particular to a workpiece clamping fixture. Background Technique
[0002] In the field of slow wire cutting machine tool processing, the clamping and angle adjustment of workpieces are one of the key factors affecting processing efficiency and accuracy;
[0003] Traditional workpiece clamping methods often have problems such as long clamping time, difficult control of clamping force, and low angle adjustment accuracy. These problems not only increase processing costs but also limit the improvement of processing efficiency. To overcome the deficiencies of traditional clamping methods, various improved workpiece clamping fixtures have emerged on the market. However, most of these fixtures have disadvantages such as complex structure, cumbersome operation, and poor adaptability, and it is difficult to meet the requirements of the modern processing industry for high efficiency, precision, and flexibility. Content of the Utility Model
[0004] In view of the problems existing in the prior art, the utility model discloses a workpiece clamping fixture, and the technical scheme adopted is as follows: it includes a bottom plate, a housing frame, a rotating frame, an adjusting unit, and a clamping unit. A housing frame is arranged at the front end of the middle part of the upper surface of the bottom plate, a rotating frame is arranged at the front end of the housing frame, a fixed clamping block is welded and arranged at the bottom of the front end of the rotating frame, the middle part of the rear side of the rotating frame is fixedly connected with the adjusting unit arranged inside the housing frame, a clamping unit is arranged in the middle of the rotating frame, and the clamping unit includes a T-shaped groove, a fixing plate, a compression spring, a threaded rod, a moving block, a knob, an L-shaped pressing rod, and a sliding groove. The T-shaped groove is arranged in the middle of the front side of the rotating frame, a moving clamping block is slidably installed at the bottom inside the T-shaped groove, and the top of the moving clamping block is of an "I" - shaped structure. A fixing plate is arranged in the middle of the T-shaped groove, a compression spring is fixedly installed at the bottom of the fixing plate, the bottom of the compression spring is fixedly connected with the top of the moving clamping block, a threaded rod is rotatably installed at the center of the top of the fixing plate, the top of the threaded rod passes through a through hole arranged at the top of the rotating frame and is fixedly connected with the knob, a moving block is threadedly installed on the threaded rod, and the left and right ends of the bottom of the moving block are respectively provided with L-shaped pressing rods, and the L-shaped pressing rods are respectively slidably installed in sliding grooves arranged at the left and right ends of the front side of the rotating frame.
[0005] As a preferred technical scheme of the utility model, the adjusting unit includes a motor, a worm, a rotating shaft, and a worm gear. The worm is arranged at the left end inside the housing frame, the bottom of the worm is rotatably connected with the top of the bottom plate through a bearing, the top of the worm is fixedly connected with the output shaft of a motor fixedly installed at the left end of the top of the housing frame, the rotating shaft is rotatably installed in the middle of the housing frame, the front end of the rotating shaft is fixedly connected with the middle part of the rear side of the rotating frame, and the worm gear welded to the middle of the rotating shaft meshes with the worm.
[0006] As a preferred technical solution of the present utility model, the adjusting unit further includes a pointer and a disc scale line. The disc scale line is arranged at the rear side of the housing frame, and the disc scale line and the rotating shaft are concentric. A pointer is fixedly installed at the rear end of the rotating shaft.
[0007] As a preferred technical solution of the present utility model, rubber pressing blocks are symmetrically arranged on the left and right at the front bottom of the L-shaped pressing rod.
[0008] As a preferred technical solution of the present utility model, mounting holes are respectively arranged at the four corners of the bottom plate, and the mounting holes are in an "L" shape structure.
[0009] As a preferred technical solution of the present utility model, it further includes a controller. The controller is arranged at the top left of the housing frame. The output end of the controller is electrically connected to the input end of the motor, and the input end of the controller is electrically connected to the output end of an external power supply.
[0010] The beneficial effects of the present utility model: Through the combination of the moving clamp block and the compression spring, the workpiece can be quickly and preliminarily clamped. Subsequently, through the precise clamping adjustment driven by the knob, the stability of the workpiece is further ensured. This process greatly shortens the clamping time and improves the overall processing efficiency.
[0011] The worm and worm gear transmission system driven by the motor ensures that the rotating frame and the workpiece can rotate smoothly and precisely to the required angle. At the same time, the cooperation of the pointer and the disc scale line provides an intuitive rotation angle indication for the staff, effectively avoiding the errors that may be caused by traditional manual adjustment.
[0012] In summary, the workpiece clamping fixture has a compact structure and is easy to operate. The staff only needs to simply pull and move the moving clamp block and turn the knob to complete the quick clamping and fixing of the workpiece. Then, by controlling the adjusting unit through the controller, the angle of the clamped workpiece can be adjusted, reducing the operation difficulty and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0014] Figure 2 is a schematic diagram of the bottom view structure of the present utility model;
[0015] Figure 3 is a schematic diagram of the sectional structure of the present utility model;
[0016] Figure 4 is a schematic diagram of the pressing block structure of the present utility model;
[0017] Figure 5 is a schematic diagram of the moving clamp block structure of the present utility model.
[0018] In the figure: 1, bottom plate; 2, frame; 3, controller; 4, rotating frame; 5, adjusting unit; 51, motor; 52, worm; 53, rotating shaft; 54, worm gear; 55, pointer; 56, disc scale line; 6, clamping unit; 61, T-shaped groove; 62, fixed plate; 63, compression spring; 64, threaded rod; 65, moving block; 66, knob; 67, L-shaped pressing rod; 68, sliding groove; 7, fixed clamping block; 8, mounting hole; 9, moving clamping block. Specific implementation manner
[0019] Embodiment 1
[0020] Such as Figures 1 to 5As shown in the figure, the utility model discloses a workpiece clamping fixture. The adopted technical solution is as follows: it includes a bottom plate 1, a housing frame 2, a rotating frame 4, an adjusting unit 5 and a clamping unit 6. Installation holes 8 are respectively arranged at the four corners of the bottom plate 1. The installation holes 8 are in an "L" shape structure. Through the installation holes 8 on the bottom plate 1, the fixture can be simply and firmly installed on the workbench of the slow wire cutting machine tool. This is the basis for the stable operation of the fixture. In the middle front end of the upper surface of the bottom plate 1, there is a housing frame 2. The housing frame 2 serves as the main structure of the whole fixture and provides the necessary support strength. At the front end of the housing frame 2, there is a rotating frame 4. At the bottom front end of the rotating frame 4, there is a fixed clamping block 7 welded. The middle part at the rear side of the rotating frame 4 is fixedly connected with the adjusting unit 5 arranged inside the housing frame 2. In the middle of the rotating frame 4, there is a clamping unit 6. The clamping unit 6 includes a T-shaped groove 61, a fixing plate 62, a compression spring 63, a threaded rod 64, a moving block 65, a knob 66, an L-shaped pressing rod 67 and a sliding groove 68. The T-shaped groove 61 is arranged in the middle at the front side of the rotating frame 4. A moving clamping block 9 is slidably installed at the bottom inside of the T-shaped groove 61, and the top of the moving clamping block 9 is in an "I" shape structure. In the middle of the T-shaped groove 61, there is a fixing plate 62. At the bottom of the fixing plate 62, there is a compression spring 63 fixedly installed. The bottom of the compression spring 63 is fixedly connected with the top of the moving clamping block 9. By pulling up the moving clamping block 9 to make it slide upward along the T-shaped groove 61 and squeezing the built-in compression spring 63, after releasing the moving clamping block 9, the elastic force of the compression spring 63 will make the moving clamping block 9 automatically press down, thereby initially clamping the workpiece. This design is both fast and convenient, improving the work efficiency. At the center of the top of the fixing plate 62, there is a threaded rod 64 rotatably installed. The top of the threaded rod 64 passes through a through hole arranged at the top of the rotating frame 4 and is fixedly connected with the knob 66. A moving block 65 is threadedly installed on the threaded rod 64. At the left and right ends of the bottom of the moving block 65, there are respectively L-shaped pressing rods 67. The L-shaped pressing rods 67 are respectively slidably installed in the sliding grooves 68 arranged at the left and right ends at the front side of the rotating frame 4. At the bottom front ends of the L-shaped pressing rods 67, there are respectively rubber pressing blocks symmetrically arranged left and right. By rotating the knob 66, the threaded rod 64 is driven to rotate, so that the threaded rod 64 drives the moving block 65 to move along the T-shaped groove 61 towards the moving clamping block 9. The L-shaped pressing rods 67 at the bottom of the moving block 65 slide along the sliding grooves 68, and the rubber pressing blocks at their front ends finally press and fix the top of the moving clamping block 9 to complete the precise clamping of the workpiece. The design of the rubber pressing blocks not only ensures the stability of clamping but also reduces the damage to the workpiece. The adjusting unit 5 includes a motor 51, a worm 52, a rotating shaft 53 and a worm gear 54. The worm 52 is arranged at the left end inside the housing frame 2. The bottom of the worm 52 is rotatably connected with the top of the bottom plate 1 through a bearing. The top of the worm 52 is fixedly connected with the output shaft of the motor 51 fixedly installed at the left end of the top of the housing frame 2. The rotating shaft 53 is rotatably installed in the middle of the housing frame 2. The front end of the rotating shaft 53 is fixedly connected with the middle part at the rear side of the rotating frame 4. The worm gear 54 welded in the middle of the rotating shaft 53 meshes with the worm 52. By running the motor 51,The output shaft of the motor 51 drives the worm 52 to rotate. The meshing of the worm 52 and the worm wheel 54 causes the rotating shaft 53 and the connected rotating frame 4 to rotate to the required angle. The adjusting unit 5 further includes a pointer 55 and a disc scale line 56. The disc scale line 56 is arranged at the rear side of the housing frame 2, and the disc scale line 56 and the rotating shaft 53 are concentric. A pointer 55 is fixedly installed at the rear end of the rotating shaft 53. When the rotating shaft 53 rotates, it will drive the pointer 55 to rotate. By using the pointer 55 and the disc scale line 56 in cooperation, the rotation adjustment angle can be displayed, providing intuitive visual feedback for the staff, ensuring the adjustment accuracy. It also includes a controller 3. The controller 3 is arranged at the left top of the housing frame 2. The output end of the controller 3 is electrically connected to the input end of the motor 51, and the input end of the controller 3 is electrically connected to the output end of an external power supply. Through the setting of the controller 3, it is convenient for the staff to control the motor 51.,
[0021] The working principle of the present utility model: First, through the mounting holes 8 at the four corners of the bottom plate 1, it is convenient for the staff to firmly fix the jig on the workbench of an external slow wire cutting machine. At this time, the housing frame 2 serves as the main structure to support the entire jig, and the controller 3 is connected to the external power supply and is in a standby state. Then, the workpiece to be processed is clamped between the fixed clamp block 7 and the movable clamp block 9 at the front end of the rotating frame 4. By pulling up the movable clamp block 9, it slides upward along the T-shaped groove 61 and squeezes the compression spring 63. After placing the workpiece on the top of the fixed clamp block 7, release the movable clamp block 9. Under the elastic force of the compression spring 63, the movable clamp block 9 can quickly and preliminarily clamp the workpiece. Subsequently, by rotating the knob 66, the knob 66 drives the threaded rod 64 to rotate, so that the threaded rod 64 drives the moving block 65 to move along the T-shaped groove 61 towards the movable clamp block 9, and the L-shaped pressing rod 67 at the bottom of the moving block 65 slides along the sliding groove 68, so that the rubber pressing block at the bottom of the front end of the L-shaped pressing rod 67 presses and fixes the top of the movable clamp block 9. Finally, if the workpiece needs to be adjusted at a specific processing angle, the staff can start the motor 51 through the controller 3. The output shaft of the motor 51 drives the worm 52 to rotate. The meshing of the worm 52 and the worm wheel 54 causes the rotating shaft 53 and the connected rotating frame 4 to rotate to the required angle. At the same time, the staff can observe the movement of the pointer 55 on the disc scale line 56 to display the current rotation angle to ensure the adjustment accuracy.
[0022] The circuit connection involved in the present utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to the widely used prior art.
[0023] The components not described in detail in this article are prior art.
[0024] Although the specific embodiments of the present utility model have been described in detail above, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model, and modifications or variations that do not involve creative labor are still within the protection scope of the present utility model.
Claims
1. A workpiece clamping fixture, characterized in that, It includes a bottom plate (1), a frame (2), a rotating frame (4), an adjusting unit (5) and a clamping unit (6). In the middle front end of the upper surface of the bottom plate (1), a frame (2) is provided. At the front end of the frame (2), a rotating frame (4) is provided. At the bottom of the front end of the rotating frame (4), a fixed clamping block (7) is welded. In the middle of the rear side of the rotating frame (4), it is fixedly connected to the adjusting unit (5) arranged inside the frame (2). In the middle of the rotating frame (4), a clamping unit (6) is provided. The clamping unit (6) includes a T-shaped groove (61), a fixing plate (62), a compression spring (63), a threaded rod (64), a moving block (65), a knob (66), an L-shaped pressing rod (67) and a sliding groove (68). The T-shaped groove (61) is arranged in the middle of the front side of the rotating frame (4). At the inner bottom of the T-shaped groove (61), a moving clamping block (9) is slidably installed, and the top of the moving clamping block (9) is of an "I" - shaped structure. In the middle of the T-shaped groove (61), a fixing plate (62) is provided. At the bottom of the fixing plate (62), a compression spring (63) is fixedly installed. The bottom of the compression spring (63) is fixedly connected to the top of the moving clamping block (9). At the center of the top of the fixing plate (62), a threaded rod (64) is rotatably installed. The top of the threaded rod (64) passes through a through - hole arranged at the top of the rotating frame (4) and is fixedly connected to the knob (66). A moving block (65) is threadedly installed on the threaded rod (64). At the left and right ends of the bottom of the moving block (65), L-shaped pressing rods (67) are respectively provided. The L-shaped pressing rods (67) are respectively slidably installed in the sliding grooves (68) arranged at the left and right ends of the front side of the rotating frame (4).
2. The workpiece clamping fixture according to claim 1, wherein: The adjusting unit (5) includes a motor (51), a worm (52), a rotating shaft (53) and a worm gear (54). The worm (52) is arranged at the left end inside the frame (2). The bottom of the worm (52) is rotatably connected to the top of the bottom plate (1) through a bearing. The top of the worm (52) is fixedly connected to the output shaft of the motor (51) fixedly installed at the left end of the top of the frame (2). The rotating shaft (53) is rotatably installed in the middle of the frame (2). The front end of the rotating shaft (53) is fixedly connected to the middle of the rear side of the rotating frame (4). The worm gear (54) welded in the middle of the rotating shaft (53) meshes with the worm (52).
3. The workpiece clamping fixture according to claim 2, characterized in that: The adjusting unit (5) further includes a pointer (55) and a circular scale line (56). The circular scale line (56) is arranged at the rear side of the frame (2), and the circular scale line (56) and the rotating shaft (53) are concentric. At the rear end of the rotating shaft (53), a pointer (55) is fixedly installed.
4. A workpiece clamping fixture according to claim 1, characterized in that: At the bottom of the front end of the L-shaped pressing rod (67), rubber pressing blocks are respectively arranged symmetrically on the left and right sides.
5. A workpiece clamping fixture according to claim 1, characterized in that: At the four corners of the bottom plate (1), mounting holes (8) are respectively provided, and the mounting holes (8) are of an "L" - shaped structure.
6. The workpiece clamping fixture according to claim 2, characterized in that: It further includes a controller (3), the controller (3) is arranged at the left top of the frame (2), the output end of the controller (3) is electrically connected to the input end of the motor (51), and the input end of the controller (3) is electrically connected to the output end of an external power supply.