A clamping tool for machining parts

Abstract

The utility model discloses a kind of clamping tool for part processing, it is related to machining technical field, including base, support plate, two-way screw rod, first threaded sleeve, sliding seat, pedestal, screw rod, second threaded sleeve, lifting seat, sliding sleeve, rotating shaft, gear, two-way slide, rack, pin shaft, reset spring, pin slot, sliding slot, sliding rod, top variable lane plate, bottom variable lane plate and clamping piece. Among them: the base is as the basis supporting part of entire clamping tool, for installing support plate and other components;Support plate is fixedly connected on base.The utility model provides a kind of clamping tool for part processing, through the synergic effect of two-way screw rod, screw rod and gear rack, the accurate position adjustment to part is realized, so that positioning accuracy in clamping process is significantly improved. Especially, the design of two-way screw rod and screw rod allows clamping tool to be flexibly adjusted in horizontal and vertical directions, to adapt to the processing needs of parts of different sizes and shapes.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a clamping fixture for machining parts. Background Technology

[0002] In the field of parts processing, clamping fixtures, as key auxiliary equipment, are widely used in various machining processes to ensure the stability and accuracy of parts during processing. With the increasing complexity and diversification of machining processes, higher demands are placed on the functionality and adaptability of clamping fixtures. However, existing clamping fixtures still have many shortcomings in practical applications, limiting their performance in high-efficiency and precision machining. For example, some clamping fixtures have a simple structural design, making it difficult to adapt to parts of different shapes and sizes, thus limiting their applicability. At the same time, existing fixtures may have insufficient stability during clamping, easily causing parts to shift due to external forces or vibrations, affecting machining accuracy. Furthermore, the operation of some clamping fixtures is cumbersome, requiring significant time and manpower for adjustments, reducing production efficiency. Although some patented technologies have proposed solutions to these problems, there is still room for improvement, such as in terms of the uniformity of clamping force, ease of operation, and adaptability to various types of parts. Therefore, developing a clamping fixture for parts processing that can meet diverse machining needs and possesses higher stability and ease of operation has become an urgent problem to be solved in the current technological field. Based on this background, this utility model aims to provide an innovative clamping tool to overcome the shortcomings of the prior art and meet the diverse needs of actual production. Utility Model Content

[0003] This utility model addresses the shortcomings of existing clamping fixtures for parts processing in terms of operational flexibility, positioning accuracy, and structural stability, and proposes a solution with optimized structural design. Therefore, this utility model adopts the following technical solution:

[0004] This utility model provides a clamping fixture for machining parts, including a base, a support plate, a bidirectional lead screw, a first threaded sleeve, a slide block, a base, a lead screw, a second threaded sleeve, a lifting seat, a slide block, a rotating shaft, a gear, a bidirectional slide rail, a rack, a pin, a return spring, a pin groove, a slide groove, a slide rod, a top lane change plate, a bottom lane change plate, and clamping components. The base serves as the fundamental support for the entire clamping fixture, used to mount the support plate and other components. The support plate is fixedly connected to the base and has mounting holes inside to support the bidirectional lead screw and provide space for the installation of other components. Furthermore, the support plate is fixedly connected to the base with bolts to ensure the stability of the overall structure.

[0005] The bidirectional lead screw is installed between support plates, with both ends connected to the support plates via bearings to achieve rotational movement. A first threaded sleeve engages with the bidirectional lead screw, enabling lateral movement of the slide via a threaded connection. Specifically, both ends of the bidirectional lead screw are equipped with handles or drive device interfaces for manual or automatic rotation. The first threaded sleeve is fixedly connected to the slide with screws, thereby converting the rotational motion of the bidirectional lead screw into the linear motion of the slide.

[0006] The slide block moves along the bidirectional lead screw, causing the base to adjust its lateral position. The base is fixedly connected to the slide block by bolts and is used to support the lead screw, lifting seat, and other related components. Furthermore, the base is provided with mounting grooves for installing bidirectional slide rails and channels to ensure precise guidance of subsequent components.

[0007] The screw is vertically mounted on the base and connected to the base via bearings to achieve rotational movement. The second threaded sleeve engages with the screw, and the lifting seat moves up and down via a threaded connection. Specifically, a drive interface is provided at the top of the screw for manual or automatic rotation. The second threaded sleeve is fixedly connected to the lifting seat with screws, thereby converting the rotational movement of the screw into the vertical movement of the lifting seat.

[0008] The lifting seat moves along the screw, causing the sliding sleeve to adjust its vertical position. The sliding sleeve is fixedly connected to the lifting seat by bolts and is used to support components such as the rotating shaft and gears. Furthermore, a bearing is installed inside the sliding sleeve to reduce friction during the rotation of the rotating shaft and improve transmission efficiency.

[0009] The rotating shaft is mounted in a sliding sleeve, with both ends connected to the sleeve via bearings. It transmits power and drives the gear to rotate. The gear meshes with the rack, and the rotation of the gear achieves the linear motion of the rack. Specifically, one end of the rotating shaft is equipped with a drive interface for manual or automatic rotation. The meshing relationship between the gear and rack is achieved through precision machining, ensuring high accuracy during transmission.

[0010] The bidirectional slide rail is mounted on the base and is used to guide the linear motion of the rack. The rack meshes with the gear, and the linear motion drives the movement of the top and bottom lane change plates. Furthermore, a guide groove is provided on the inner side of the bidirectional slide rail to limit the movement trajectory of the rack and ensure the stability of its linear motion.

[0011] The pin is used to fix and adjust the position of the top and bottom lane change plates; a return spring is mounted on the pin to provide a return force, ensuring that the clamping components can accurately return to their original position. Specifically, an adjusting nut is provided at one end of the pin to adjust the tightness of the pin, thereby controlling the fixing state of the top and bottom lane change plates. The spring constant of the return spring is calculated to ensure that it provides a moderate and stable return force.

[0012] The pin groove is provided on the top and bottom lane change plates and is used in conjunction with the pin shaft; the slide groove is provided on the base to guide the linear movement of the slide rod. Furthermore, the size of the pin groove matches the diameter of the pin shaft to ensure a tight and secure fit. A lubricating coating is provided on the inner side of the slide groove to reduce friction during the movement of the slide rod.

[0013] The slide bar is installed in a groove, with one end fixedly connected to the rack by screws, and the other end fixedly connected to the top and bottom lane change plates by screws. It is used to transmit power and drive the movement of the top and bottom lane change plates. Specifically, the surface of the slide bar is hardened to improve its wear resistance and service life.

[0014] The top and bottom lane change plates are respectively mounted on the lifting base and are used to clamp the upper and lower parts of the components. The inner sides of the top and bottom lane change plates are provided with mounting grooves for fixing the clamping components. Furthermore, positioning pins are provided in the mounting grooves of the top and bottom lane change plates to ensure accurate installation of the clamping components.

[0015] The clamping components are mounted on the top and bottom lane change plates, directly contacting the components and performing the clamping function. Specifically, the contact surfaces of the clamping components are provided with anti-slip textures to increase friction during clamping and prevent component slippage. The clamping components are made of high-strength alloy steel to improve their durability.

[0016] The beneficial effects of this utility model are manifested through the above technical solution:

[0017] Through the coordinated action of the bidirectional lead screw, threaded screw, and rack and pinion, precise positioning of the parts is achieved, significantly improving the positioning accuracy during clamping. In particular, the design of the bidirectional lead screw and threaded screw allows the clamping fixture to be flexibly adjusted in both the horizontal and vertical directions, adapting to the machining needs of parts of different sizes and shapes.

[0018] Furthermore, the design of the slide, slide rod, and return spring enhances the overall structural stability of the tooling, ensuring the reliability and consistency of the clamping action. In particular, the design of the return spring and pin connection allows the clamping components to quickly return to their original position after clamping, thereby improving work efficiency.

[0019] Furthermore, the connections between the components are clearly defined, facilitating disassembly, maintenance, and replacement, thus extending the tooling's lifespan. In particular, the modular design allows for independent production and assembly of each component, reducing production costs and maintenance complexity.

[0020] In summary, this utility model provides a convenient and reliable clamping fixture for parts processing through optimized structural design. It is suitable for various processing scenarios and has significant technical advantages and application value. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0023] Figure 2 Provided for the embodiments of this utility model Figure 1 A partial structural diagram;

[0024] Figure 3 Provided for the embodiments of this utility model Figure 2 Schematic diagram of the structure at point A;

[0025] Figure 4 Provided for the embodiments of this utility model Figure 2 Partial disassembly diagram;

[0026] Figure 5 Provided for the embodiments of this utility model Figure 4 A schematic diagram of the structure at point B.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Base; 2. Support plate; 3. Double-acting lead screw; 4. First threaded sleeve; 5. Slide; 6. Base; 7. Screw; 8. Second threaded sleeve; 9. Lifting seat; 10. Slide sleeve; 11. Rotating shaft; 12. Gear; 13. Double-acting slide rail; 14. Rack; 15. Pin; 16. Return spring; 17. Pin groove; 18. Slide groove; 19. Slide rod; 20. Top lane change plate; 21. Bottom lane change plate; 22. Clamping component. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model provides a clamping fixture for machining parts, the structure of which is as follows: Figures 1 to 5As shown, the device includes a base 1, a support plate 2, a bidirectional lead screw 3, a first threaded sleeve 4, a slide block 5, a base 6, a screw 7, a second threaded sleeve 8, a lifting seat 9, a slide sleeve 10, a rotating shaft 11, a gear 12, a bidirectional slide rail 13, a rack 14, a pin 15, a return spring 16, a pin groove 17, a slide groove 18, a slide rod 19, a top lane change plate 20, a bottom lane change plate 21, and a clamping member 22. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] The base 1, serving as the foundation of the entire clamping fixture, is used to install and support other components. A support plate 2 is bolted to the base 1. The support plate 2 has through mounting holes for assembling the bidirectional lead screw 3 and providing space for the installation of other components. Both ends of the bidirectional lead screw 3 are connected to the support plate 2 via bearings, ensuring smooth rotation. Both ends of the bidirectional lead screw 3 are designed with drive interfaces, allowing for manual or automatic rotation. A first threaded sleeve 4 engages with the bidirectional lead screw 3, converting its rotational motion into linear motion, thereby driving the fixed slide 5 to move along the bidirectional lead screw 3. The bottom of the slide 5 has a guide groove that engages with the guide rail on the base 1, ensuring that the slide 5 maintains a linear trajectory during movement.

[0032] A base 6 is bolted to the slide block 5, supporting the screw 7 and related components. The base 6 has mounting grooves for assembling the bidirectional slide rail 13 and slide groove 18. The screw 7 is vertically mounted on the base 6, with its two ends connected to the base 6 via bearings to ensure smooth rotation. A drive interface is located at the top of the screw 7, allowing for manual or automatic rotation. A second threaded sleeve 8 engages with the screw 7, converting its rotational motion into linear motion, thereby moving the lifting seat 9, which is fixed to it, along the screw 7. Guide blocks are located on both sides of the lifting seat 9, engaging with guide rails on the base 6 to ensure the lifting seat 9 maintains a vertical trajectory during movement.

[0033] A sliding sleeve 10 is bolted to the lifting base 9. The sliding sleeve 10 contains bearings to support the rotating shaft 11 and reduce friction during rotation. Both ends of the rotating shaft 11 are connected to the sliding sleeve 10 via bearings to ensure smooth rotation. One end of the rotating shaft 11 has a drive interface, allowing it to rotate manually or automatically. A gear 12 is fixedly mounted on the rotating shaft 11, meshing with a rack 14. The rotation of the gear 12 enables the linear motion of the rack 14. The rack 14 is mounted within a bidirectional slide rail 13, which is located on the base 6 and guides the linear motion of the rack 14. A guide groove is provided on the inner side of the bidirectional slide rail 13 to ensure the rack 14 maintains a stable trajectory during movement.

[0034] One end of the rack 14 is fixedly connected to the slide rod 19 by screws. The slide rod 19 is installed in the slide groove 18, which is set on the base 6, and is used to guide the linear movement of the slide rod 19. The other end of the slide rod 19 is fixedly connected to the top lane change plate 20 and the bottom lane change plate 21 by screws, thereby transmitting the linear movement of the rack 14 to the top lane change plate 20 and the bottom lane change plate 21. The top lane change plate 20 and the bottom lane change plate 21 are respectively installed on the upper and lower sides of the lifting seat 9, and are used to clamp the upper and lower parts of the components. The inner side of the top lane change plate 20 and the bottom lane change plate 21 is provided with mounting grooves for fixing the clamping component 22. The mounting grooves are provided with positioning pins to ensure that the installation position of the clamping component 22 is accurate.

[0035] Clamping components 22 are mounted on the top lane change plate 20 and the bottom lane change plate 21, directly contacting the components and performing the clamping operation. The contact surface of clamping components 22 is specially treated with anti-slip textures to increase friction during clamping and prevent the components from sliding. Clamping components 22 are made of high-strength alloy steel, possessing excellent wear resistance and durability. Pins 15 are used to fix and adjust the positions of the top lane change plate 20 and the bottom lane change plate 21. A return spring 16 is mounted on pins 15, providing a return force to the top lane change plate 20 and the bottom lane change plate 21, ensuring that clamping components 22 can quickly return to their original position after clamping. An adjusting nut is provided at one end of pins 15 to adjust the tightness of pins 15, thereby controlling the fixed state of the top lane change plate 20 and the bottom lane change plate 21.

[0036] In practical use, the operator first adjusts the position of the clamping fixture according to the size and shape of the parts. By driving the bidirectional lead screw 3 to rotate, the first threaded sleeve 4 moves the slide 5 along the base 1, thereby adjusting the lateral position of the base 6. Subsequently, by driving the screw 7 to rotate, the second threaded sleeve 8 moves the lifting seat 9 along the base 6, thereby adjusting the vertical position of the top lane change plate 20 and the bottom lane change plate 21. After the positions of the top lane change plate 20 and the bottom lane change plate 21 are adjusted, by driving the rotating shaft 11 to rotate, the gear 12 moves the rack 14 along the bidirectional slide 13, thereby pushing the slide rod 19 to move the top lane change plate 20 and the bottom lane change plate 21 closer together, completing the clamping action. During the clamping process, the elastic force provided by the return spring 16 ensures that the clamping part 22 can fit tightly against the surface of the parts, and quickly resets after clamping.

[0037] This invention achieves precise positional adjustment of components through the aforementioned structural design. The design of the bidirectional lead screw 3 and screw 7 allows the clamping fixture to be flexibly adjusted in both the horizontal and vertical directions, adapting to the processing needs of components of different sizes and shapes. The design of the slide groove 18, slide rod 19, and return spring 16 enhances the overall structural stability of the fixture, ensuring the reliability and consistency of the clamping action. The clear connection relationships between the components facilitate disassembly, maintenance, and replacement, extending the service life of the fixture. The modular design allows each component to be produced and assembled independently, reducing production costs and maintenance difficulty.

[0038] In summary, this utility model provides a convenient and reliable clamping fixture for parts processing, which is suitable for various processing scenarios and has significant technical advantages and application value.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A clamping fixture for machining parts, comprising a base (1), a support plate (2), a bidirectional lead screw (3), a first threaded sleeve (4), a slide (5), a base (6), a screw (7), a second threaded sleeve (8), a lifting seat (9), a slide sleeve (10), a rotating shaft (11), a gear (12), a bidirectional slide rail (13), a rack (14), a pin (15), a return spring (16), a pin groove (17), a slide groove (18), a slide rod (19), a top lane change plate (20), a bottom lane change plate (21), and a clamping member (22), characterized in that, A support plate (2) is fixedly connected to the base (1). A two-way screw rod (3) is installed between the support plates (2). The two-way screw rod (3) is connected to the slide (5) through a first threaded sleeve (4). A base (6) is fixed on the slide (5). A screw rod (7) is installed on the base (6). The screw rod (7) is connected to the lifting seat (9) through a second threaded sleeve (8). A sliding sleeve (10) is fixed on the lifting seat (9). A rotating shaft (11) is installed inside the sliding sleeve (10). A gear is fixed on the rotating shaft (11). (12) Gear (12) meshes with rack (14), rack (14) is installed in bidirectional slide (13), rack (14) is connected to top lane change plate (20) and bottom lane change plate (21) through slide rod (19), clamping parts (22) are provided on top lane change plate (20) and bottom lane change plate (21), pin (15) cooperates with pin groove (17) to fix top lane change plate (20) and bottom lane change plate (21), and return spring (16) is installed on pin (15).

2. The clamping fixture for machining parts according to claim 1, characterized in that, The two ends of the bidirectional lead screw (3) are connected to the support plate (2) through bearings, and the two ends of the bidirectional lead screw (3) are provided with drive interfaces.

3. The clamping fixture for machining parts according to claim 2, characterized in that, The bottom of the slide (5) is provided with a guide groove, which cooperates with the guide rail on the base (1).

4. The clamping fixture for machining parts according to claim 1, characterized in that, The screw (7) is vertically mounted on the base (6), and both ends of the screw (7) are connected to the base (6) through bearings.

5. The clamping fixture for machining parts according to claim 4, characterized in that, The lifting seat (9) is provided with guide blocks on both sides, and the guide blocks cooperate with the guide rails on the base (6).

6. The clamping fixture for machining parts according to claim 1, characterized in that, One end of the slide bar (19) is fixedly connected to the rack (14) by screws, and the other end is fixedly connected to the top lane change plate (20) and the bottom lane change plate (21) by screws.

7. The clamping fixture for machining parts according to claim 1, characterized in that, The contact surface of the clamping member (22) is provided with anti-slip texture, and the clamping member (22) is made of high-strength alloy steel.

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