An automatic adjustment clamp

Abstract

This utility model discloses an automatic adjusting fixture, comprising: a base plate, a cylinder, a double-sided rack, a single-sided rack, a gear mechanism, and a fixture body. The cylinder is fixedly mounted on the base plate, and its telescopic rod end drives the double-sided rack to move via a connecting piece. The double-sided rack and two vertically arranged symmetrical single-sided racks are driven and engaged by the gear mechanism, which includes a first gear and a second gear. The first gear meshes with the double-sided rack, and the second gear meshes with the single-sided rack. Through gear transmission, linear motion is converted into rotational motion, driving the single-sided rack to slide and causing the fixture body to close or open. Through the synergistic effect of the cylinder drive and the gear and rack transmission, the linear motion of the cylinder is converted into rotational motion through the double-sided rack, and then driven by the meshing of the first and second gears, the symmetrically arranged single-sided racks slide synchronously, thereby causing the fixture body to close or open, shortening the clamping time and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to an automatic adjusting fixture. Background Technology

[0002] In the field of mechanical design and manufacturing, fixtures are key auxiliary equipment in the process of workpiece processing, assembly and inspection, and their performance directly affects processing accuracy and production efficiency.

[0003] Existing mechanical fixtures typically use threaded locking to fix the workpiece, which requires frequent manual adjustment during use, resulting in time-consuming, labor-intensive, and low production efficiency. Utility Model Content

[0004] This application provides an automatic adjustment fixture, which solves the technical problem that the fixture in the prior art needs to be frequently manually adjusted during use, which is time-consuming, labor-intensive and has low production efficiency.

[0005] This application provides an automatic adjusting clamp, comprising:

[0006] Base plate;

[0007] A cylinder, which is fixedly mounted on the base plate;

[0008] A double-sided rack, wherein the double-sided rack is fixedly installed at the end of the telescopic rod of the cylinder via a connector;

[0009] A single-sided rack, wherein the single-sided rack and the double-sided rack are arranged perpendicularly to each other, and the single-sided rack consists of two symmetrically arranged on both sides of the double-sided rack. The single-sided rack is slidably mounted on the base plate via a fixing rod, and the single-sided rack and the double-sided rack are driven and engaged by a gear mechanism.

[0010] The clamp body consists of two clamp bodies that are respectively fixedly mounted on the sides of the corresponding single-sided racks. The single-sided racks can operably drive the two clamp bodies to open or close.

[0011] In some embodiments, the gear mechanism includes a first gear and a second gear, which are mounted on the base plate via a fixed post. The first gear and the second gear are rotatably mounted on the fixed post and are fixedly connected sideways. The first gear meshes with the double-sided rack, and the second gear meshes with the single-sided rack.

[0012] In some embodiments, the diameter of the first gear is smaller than the diameter of the second gear.

[0013] In some embodiments, the base plate is provided with a first fixing plate and a second fixing plate, both of which are L-shaped. One panel of the first fixing plate is fixedly connected to the base plate, and the cylinder is fixedly mounted on the other panel of the first fixing plate. There are two second fixing plates arranged opposite to each other. One panel of the second fixing plate is fixedly connected to the base plate, and both ends of the fixing rod are fixedly connected to the other panel of the corresponding second fixing plate.

[0014] In some embodiments, a first spring is provided on the fixing rod, and the first spring is located between the two single-sided racks.

[0015] In some embodiments, the clamp body and the single-sided rack are connected by a connecting plate.

[0016] In some embodiments, an outer frame is mounted on the base plate, the single-sided rack and the double-sided rack are located inside the outer frame, the clamp body is located outside the outer frame, and the outer frame has an elongated hole on the side corresponding to the clamp body, through which the connecting plate passes.

[0017] In some embodiments, the connecting plate and the single-sided rack are connected by a quick-release mechanism, the quick-release mechanism comprising:

[0018] The third fixing plate is fixedly connected to the side of the single-sided rack;

[0019] The fourth fixing plate is fixedly connected to the connecting plate;

[0020] A fixing block is fixedly mounted on the fourth fixing plate. The fixing block is located between the third fixing plate and the fourth fixing plate, and the fixing blocks are two blocks arranged opposite to each other.

[0021] Two sliding rods are slidably mounted on the fixed block.

[0022] A locking block is fixedly mounted on the sliding rod and located between the two fixed blocks. A second spring is provided on the sliding rod and located between the locking block and the fixed blocks.

[0023] A locking block is fixedly mounted on the third fixing plate, located between the two locking blocks, and the locking blocks are operably engaged with the locking block.

[0024] In some embodiments, a fixing sleeve is fixedly disposed on the fixing block, and the sliding rod passes through the fixing block and the fixing sleeve.

[0025] In some embodiments, a connecting rod is fixedly provided at the end of the sliding rod away from the locking block, the connecting rod is disposed toward the clamp body, and a handle is fixedly provided at the end of the connecting rod.

[0026] The beneficial effects of this application are as follows:

[0027] The automatic adjusting fixture provided by this utility model, through the synergistic effect of cylinder drive and gear rack transmission, the linear motion of the cylinder is converted into rotational motion through the double-sided rack, and then driven by the meshing transmission of the first gear and the second gear, drives the symmetrically arranged single-sided rack to slide synchronously, thereby driving the fixture body to close or open, shortening the clamping time, improving production efficiency, significantly improving clamping accuracy and stability, ensuring uniform distribution of clamping force, adapting to the clamping requirements of workpieces of different sizes, and enhancing versatility. Attached Figure Description

[0028] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0029] Figure 1 This is one of the overall structural schematic diagrams of an automatic adjusting fixture provided in this application;

[0030] Figure 2 This is the second schematic diagram of the overall structure of an automatic adjusting fixture provided in this application;

[0031] Figure 3 This is one of the internal structural diagrams of an automatic adjusting fixture provided in this application;

[0032] Figure 4 This is the second schematic diagram of the internal structure of an automatic adjusting fixture provided in this application;

[0033] Figure 5 This application provides a structural schematic diagram of a quick-release mechanism in an automatic adjusting fixture.

[0034] The components are as follows: 1. Base plate; 2. Outer frame; 3. Cylinder; 4. First fixing plate; 5. Double-sided rack; 6. Fixing column; 60. Gear mechanism; 70. Quick release mechanism; 7. First gear; 8. Second gear; 9. Single-sided rack; 10. Fixing rod; 11. First spring; 12. Third fixing plate; 13. Fixing block; 14. Fourth fixing plate; 15. Connecting plate; 16. Clamp body; 17. Locking block; 18. Locking block; 19. Second spring; 20. Sliding rod; 21. Fixing sleeve; 22. Connecting rod; 23. Handle; 24. Second fixing plate. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0038] This application provides an automatic adjustment fixture, which solves the technical problem in the prior art that fixtures require frequent manual adjustment during use, resulting in time-consuming and labor-intensive operations and low production efficiency.

[0039] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0040] like Figures 1-4 As shown, this utility model discloses an automatic adjusting clamp, including: a base plate 1, a cylinder 3, a double-sided rack 5, a single-sided rack 9, a gear mechanism, and a clamp body 16. The cylinder 3 is fixedly installed on the base plate 1. The double-sided rack 5 is fixedly installed on the end of the telescopic rod of the cylinder 3 through a connector. The end of the telescopic rod of the cylinder 3 drives the double-sided rack 5 to move through the connector, which can be a joint. The double-sided rack 5 and two vertically arranged symmetrical single-sided racks 9 are driven by a gear mechanism 60. The gear mechanism 60 includes a first gear 7 and a second gear 8. The first gear 7 meshes with the double-sided rack 5, and the second gear 8 meshes with the single-sided rack 9. The linear motion is converted into rotational motion through gear transmission, driving the single-sided rack 9 to slide and causing the clamp body 16 to close or open.

[0041] Through the coordinated action of cylinder 3 and gear rack transmission, the linear motion of cylinder 3 is converted into rotational motion by double-sided rack 5, and driven by the meshing transmission of first gear 7 and second gear 8, the symmetrically arranged single-sided rack 9 slides synchronously, thereby driving the clamp body 16 to close or open, shortening the clamping time, improving production efficiency, significantly improving clamping accuracy and stability, ensuring uniform distribution of clamping force, adapting to the clamping requirements of workpieces of different sizes, and enhancing versatility.

[0042] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0043] Specifically, such as Figure 2 , Figure 3 As shown, the gear mechanism includes a first gear 7 and a second gear 8, which are mounted on the base plate 1 via a fixed post 6 and can rotate around the fixed post 6. The first gear 7 and the second gear 8 are fixedly connected on the side. The first gear 7 meshes with the double-sided rack 5, and the second gear 8 meshes with the single-sided rack 9. When the cylinder 3 drives the double-sided rack 5 to perform linear motion, the first gear 7 rotates accordingly and drives the second gear 8 to rotate synchronously through the rigid connection between its side and the second gear 8. The entire transmission process converts the linear motion of the cylinder 3 into the linear sliding of the single-sided rack 9, thereby driving the clamp body 16 to achieve the action of closing or opening, ensuring the smoothness and reliability of power transmission.

[0044] Furthermore, the design that the diameter of the first gear 7 is smaller than that of the second gear 8 optimizes torque transmission, enabling the fixture to maintain a stable clamping force when handling larger workpieces, thus improving its versatility and adaptability.

[0045] The base plate 1 is provided with a first fixing plate 4 and a second fixing plate 24. Both the first fixing plate 4 and the second fixing plate 24 are L-shaped. One panel of the first fixing plate 4 is fixedly connected to the base plate 1, and the cylinder 3 is fixedly installed on the other panel of the first fixing plate 4, that is, the first fixing plate 4 is perpendicular to the panel of the base plate 1. The second fixing plate 24 consists of two oppositely arranged plates. One panel of the second fixing plate 24 is fixedly connected to the base plate 1, and the two ends of the fixing rod 10 are respectively fixedly connected to the other panel of the corresponding second fixing plate 24, that is, the second fixing plate 24 is perpendicular to the panel of the base plate 1.

[0046] The L-shaped first fixing plate 4 and the second fixing plate 24 enhance the torsional resistance of the overall structure. The L-shaped first fixing plate 4 and the second fixing plate 24 simplify the installation process of the cylinder 3 and the fixing rod 10 and improve the assembly efficiency. The rigid connection between the fixing rod 10 and the second fixing plate 24 further improves the stability and durability of the fixture body 16. The overall structure is compact and modular, which facilitates maintenance and replacement of parts and significantly improves the assembly efficiency.

[0047] Furthermore, both ends of the fixing rod 10 are rigidly connected to the base plate 1 via L-shaped second fixing plates 24 to form a transverse support structure. A first spring 11 is provided on the fixing rod 10. The first spring 11 is located between the two single-sided racks 9. The first spring 11 can be connected to or float on the outer wall of the single-sided rack 9. When the cylinder 3 retracts, the first spring 11 is compressed and stores energy, and the clamp body 16 clamps, ensuring that the clamping force is evenly distributed. Then, the elastic force is released to push the single-sided rack 9 to reset, assisting the clamp body 16 in completing the release action. When the cylinder 3 extends and drives the double-sided rack 5 to move, the gear mechanism converts the linear motion into rotational motion, driving the single-sided rack 9 to slide along the axial direction of the fixing rod 10. The first spring 11 elastically deforms between the single-sided racks 9 to realize the automatic reset function of the clamp.

[0048] Preferably, the clamp body 16 is connected to the single-sided rack 9 by a connecting plate 15. An outer frame 2 is installed on the base plate 1. The single-sided rack 9 and the double-sided rack 5 are located inside the outer frame 2, and the clamp body 16 is located outside the outer frame 2. The outer frame 2 has an elongated hole on the side corresponding to the clamp body 16. The connecting plate 15 passes through the elongated hole, which ensures the freedom of movement of the clamp body 16 while restricting its lateral displacement.

[0049] Specifically, the outer frame 2 is made of high-strength metal material. Its inner wall is fixedly supported by the double-sided rack 5, the single-sided rack 9 and the gear mechanism through the L-shaped first fixing plate 4 and the second fixing plate 24. The clamp body 16 outside the outer frame 2 is linked with the single-sided rack 9 through the connecting plate 15. The connecting plate 15 and the elongated hole of the outer frame 2 are fitted with a clearance to ensure smooth sliding. The L-shaped first fixing plate 4 and the second fixing plate 24 also play a supporting and limiting role on all four sides of the outer frame 2.

[0050] Preferred, such as Figure 5 As shown, the connecting plate 15 and the single-sided rack 9 are connected by a quick-release mechanism 70, which includes:

[0051] The third fixing plate 12 is fixedly connected to the side of the single-sided rack 9;

[0052] The fourth fixing plate 14 is fixedly connected to the connecting plate 15;

[0053] Fixing block 13, the fixing block 13 is fixedly disposed on the fourth fixing plate 14, the fixing block 13 is located between the third fixing plate 12 and the fourth fixing plate 14, and the fixing block 13 consists of two blocks arranged opposite to each other;

[0054] Two sliding rods 20 are slidably mounted on the fixed block 13. A fixed sleeve 21 is fixedly mounted on the fixed block 13. The sliding rods 20 pass through the fixed block 13 and the fixed sleeve 21. A connecting rod 22 is fixedly mounted at the end of the sliding rod 20 away from the locking block 17. The connecting rod 22 is positioned towards the clamp body 16. A handle 23 is fixedly mounted at the end of the connecting rod 22.

[0055] A locking block 17 is fixedly mounted on the sliding rod 20 and is located between the two fixed blocks 13. A second spring 19 is provided on the sliding rod 20 and is located between the locking block 17 and the fixed blocks 13.

[0056] Locking block 18 is fixedly mounted on the third fixing plate 12. Fixing block 13 is located between the two locking blocks 17, and the locking blocks 17 are operably engaged with the locking block 18.

[0057] When the fixture body 16 needs to be replaced, the operator pulls the handle 23 outward, causing the sliding rod 20 to move outward against the elastic force of the second spring 19 towards the outside of the fixed block 13, thus unlocking the engagement between the locking block 17 and the locking block 18. Then, the fourth fixed plate 14, along with the fixture body 16, is pulled out from the third fixed plate 12. When installing a new fixture, the inclined surface of the locking block 17 is aligned with the locking block 18 and pushed in. The sliding rod 20 compresses the second spring 19 under the action of the inclined surface. After the locking block 17 is fully inserted into the locking block 18 slot, the second spring 19 resets and pushes the locking block 17 to complete the locking. The entire installation and replacement process can be completed with one hand without auxiliary tools, significantly reducing maintenance time and costs. Furthermore, the modular design allows the fixture body 16 to be adapted to workpieces of different sizes and can replace different models of fixture bodies 16, improving versatility. Simultaneously, the guiding effect of the fixed sleeve 21 on the sliding rod 20 and the elastic buffering of the second spring 19 ensure the reliability and durability of the engagement action, solving the problems of cumbersome replacement and complex maintenance of traditional fixtures. Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0058] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An automatic adjustment clamp characterized by, include: Base plate; A cylinder, which is fixedly mounted on the base plate; A double-sided rack, wherein the double-sided rack is fixedly installed at the end of the telescopic rod of the cylinder via a connector; A single-sided rack, wherein the single-sided rack and the double-sided rack are arranged perpendicularly to each other, and the single-sided rack consists of two symmetrically arranged on both sides of the double-sided rack. The single-sided rack is slidably mounted on the base plate via a fixing rod, and the single-sided rack and the double-sided rack are driven and engaged by a gear mechanism. The clamp body consists of two clamp bodies that are respectively fixedly mounted on the sides of the corresponding single-sided racks. The single-sided racks can operably drive the two clamp bodies to open or close.

2. The self-adjusting clamp of claim 1, wherein, The gear mechanism includes a first gear and a second gear. The first gear and the second gear are mounted on the base plate by a fixed column. The first gear and the second gear are rotatably mounted on the fixed column. The first gear and the second gear are fixedly connected on the side. The first gear meshes with the double-sided rack, and the second gear meshes with the single-sided rack.

3. The self-adjusting clamp of claim 2, wherein, The diameter of the first gear is smaller than the diameter of the second gear.

4. The self-adjusting clamp of claim 1, wherein, The base plate is provided with a first fixing plate and a second fixing plate, both of which are L-shaped. One panel of the first fixing plate is fixedly connected to the base plate, and the cylinder is fixedly mounted on the other panel of the first fixing plate. There are two second fixing plates arranged opposite each other. One panel of the second fixing plate is fixedly connected to the base plate, and both ends of the fixing rod are fixedly connected to the other panel of the corresponding second fixing plate.

5. The self-adjusting clamp of claim 1, wherein, A first spring is provided on the fixing rod, and the first spring is located between the two single-sided racks.

6. The self-adjusting clamp of claim 1, wherein, The clamp body and the single-sided rack are connected by a connecting plate.

7. The self-adjusting clamp of claim 6, wherein, An outer frame is mounted on the base plate. The single-sided rack and the double-sided rack are located inside the outer frame. The clamp body is located outside the outer frame. An elongated hole is opened on the side of the outer frame corresponding to the clamp body. The connecting plate passes through the elongated hole.

8. The self-adjusting clamp of claim 6, wherein, The connecting plate and the single-sided rack are connected by a quick-release mechanism, which includes: The third fixing plate is fixedly connected to the side of the single-sided rack; The fourth fixing plate is fixedly connected to the connecting plate; A fixing block is fixedly mounted on the fourth fixing plate. The fixing block is located between the third fixing plate and the fourth fixing plate, and the fixing blocks are two blocks arranged opposite to each other. Two sliding rods are slidably mounted on the fixed block. A locking block is fixedly mounted on the sliding rod and located between the two fixed blocks. A second spring is provided on the sliding rod and located between the locking block and the fixed blocks. A locking block is fixedly mounted on the third fixing plate, located between the two locking blocks, and the locking blocks are operably engaged with the locking block.

9. The automatic adjusting fixture as described in claim 8, characterized in that, A fixing sleeve is fixedly installed on the fixing block, and the sliding rod passes through the fixing block and the fixing sleeve.

10. The self-adjusting clamp of claim 8, wherein, The end of the sliding rod away from the clamping block is fixedly provided with a connecting rod, the connecting rod is arranged towards the clamp body, and the end of the connecting rod is fixedly provided with a handle.

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