Scratch-proof ceramic product clamping jig

Abstract

This utility model discloses a scratch-resistant ceramic product clamping fixture, relating to the field of fixture design. It includes a base, a support, and a gripper mechanism. The support is fixedly mounted on the base. The gripper mechanism includes a telescopic mechanism, a lifting frame, and two positioning grippers. The bottom end of the telescopic mechanism is fixedly mounted on the base. A U-shaped slot is formed on the support, with a lifting hole formed in the center of the U-shaped slot. The telescopic mechanism drives the lifting frame to move up and down through the lifting hole. Sliding holes are formed on both the left and right sides of the U-shaped slot, and the lifting frame drives the positioning grippers to clamp through the sliding holes on both sides. Roller frames are fixedly mounted on the front and rear sides of the upper side of the lifting frame. Two first rollers are rotatably mounted within the roller frames. Roller grooves are formed on the upper ends of the two positioning grippers, with second rollers rotatably mounted within the roller grooves. Compared with the prior art, this utility model solves the technical problems existing in the current clamping method, improving processing accuracy and product quality.

Description

Technical Field

[0001] This utility model relates to the field of fixture design, and in particular to a scratch-resistant fixture for mounting ceramic products. Background Technology

[0002] When manufacturing cylindrical products, lathe fixtures are typically used to clamp the product onto the spindle. The spindle drives the product to rotate, and milling cutters are then used to machine the surface. For ceramic products, directly clamping them in lathe fixtures can easily damage their surface. Currently, it is common practice to pad the product surface with a layer of soft rubber or other materials to prevent scratches.

[0003] However, this traditional clamping method has significant drawbacks for elongated ceramic products. On the one hand, it leads to unstable product rotation; on the other hand, the clamping stability is poor, both of which seriously affect the accuracy of milling and turning. For example, in the machining of some high-precision ceramic shafts, the traditional clamping method cannot guarantee the stability of their rotation axis, resulting in large deviations in the shaft diameter and unsatisfactory surface roughness after machining.

[0004] Existing patents, such as the utility model patent "Anti-Scratch Fixture for Ceramic Products" with application number CN201720107818.X, prevent product scratches by setting a Teflon layer on the inner wall of the cavity of the fixture body, and use clamping grooves and screws or bolts to tighten the connection for clamping. Another invention patent, "A Batch Clamping Fixture and Processing Method for Cylindrical Ceramic Green Blanks" with application number CN202411878164.4, effectively solves the problem of cracking that easily occurs in ceramic green blanks during clamping by setting positioning support components, movable pressure block components, and flexible locking components, and has the characteristics of strong product versatility. However, these patents do not provide specific solutions for the problems of unstable rotation and low clamping firmness when clamping long and strip-shaped ceramic products.

[0005] Therefore, it is necessary to design a special anti-scratch clamping fixture for the characteristics of long and narrow ceramic products, so as to solve the technical problems existing in the current clamping method and improve the processing accuracy and product quality. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0007] A scratch-resistant ceramic product clamping fixture includes a base, a bracket, and a gripper mechanism, wherein the bracket is fixedly mounted on the base, and the gripper mechanism is disposed within the bracket. The gripper mechanism includes a telescopic mechanism, a lifting frame, and two positioning grippers. The bottom end of the telescopic mechanism is fixedly installed on the base. A U-shaped slot is formed on the support. A lifting hole is formed in the middle of the U-shaped slot. The telescopic mechanism is located below the lifting hole. The telescopic mechanism drives the lifting frame to move up and down through the lifting hole. Sliding holes are formed on both the left and right sides of the U-shaped slot. The lifting frame drives the positioning grippers to clamp through the sliding holes on both sides. Roller frames are fixedly installed on both the front and rear sides of the upper side of the lifting frame. Two first rollers are rotatably installed between the roller frames on the front and rear sides. The upper ends of the two positioning clamps are formed with roller grooves. Second rollers are rotatably installed in the roller grooves. When the positioning clamps hold the first rollers, the second rollers press on top of the first rollers.

[0008] Furthermore: the positioning gripper includes a first connecting rod, a telescopic rod, and a second connecting rod. The inner end of the first connecting rod is rotatably fitted into the lifting frame, and the outer end of the first connecting rod is rotatably fitted into the inner end of the telescopic rod. The telescopic rod is slidably fitted into the sliding hole. The lower end of the second connecting rod is movably fitted into the outer end of the telescopic rod. Hinges are fixedly installed on both the left and right sides of the bracket. The second connecting rod is rotatably fitted into the hinges, and the second connecting rod and the hinges form a seesaw structure. The roller groove is integrally formed and set at the upper end of the second connecting rod.

[0009] Furthermore, the second link has an obtuse angle structure, and the angular position of the second link is rotatably fitted in the hinge frame.

[0010] Furthermore, the first links of the two positioning grippers are staggered relative to each other.

[0011] Furthermore: both sides of the outer end of the telescopic rod are formed with positioning posts, the inner end of the second connecting rod is formed with a U-shaped groove, both sides of the U-shaped groove are formed with sliding grooves, and the positioning posts are slidably installed in the sliding grooves in a corresponding manner.

[0012] Furthermore, silicone sleeves are respectively fitted onto the outer sides of the first roller and the second roller.

[0013] Furthermore: a first linear bearing is fixedly installed inside the lifting hole, and a movable rod is driven and connected to the telescopic mechanism. The movable rod is slidably installed in the first linear bearing, and the upper end of the movable rod is fixedly connected to the lifting frame.

[0014] Furthermore, a second linear bearing is installed inside the sliding hole, and the telescopic rod is slidably installed in the second linear bearing.

[0015] Furthermore, the lifting frame has positioning support edges formed on both the front and rear sides, and the bottom side of the roller frame is placed on the positioning support edges.

[0016] Furthermore, the telescopic mechanism is either a pneumatic cylinder or a hydraulic cylinder.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. The lifting frame is moved up and down by the telescopic mechanism. When the lifting frame is raised and lowered, it will cause the positioning claws on both sides to close or separate, thereby clamping the round ceramic product between the two first rollers and the second roller. 2. The first roller can rotate within the roller frame, while the second roller rotates within the roller groove, which can maintain the stable clamping of the round ceramic product during rotation and ensure the stable clamping of the ceramic product during rotation. 3. One or more clamping fixtures of this utility model can be used to clamp ceramic products of different lengths, which is convenient for practical use and can convert sliding friction into rolling friction, thereby effectively preventing the surface of ceramic products from being scratched.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the installation structure of the positioning gripper; Figure 4 This is a schematic diagram of the structure of using two of the present invention to clamp a long ceramic product.

[0021] The figure shows: 1. Base; 2. Bracket; 3. Gripper mechanism; 31. Telescopic mechanism; 32. Lifting frame; 33. Positioning gripper; 331. First connecting rod; 332. Telescopic rod; 333. Second connecting rod; 4. U-shaped slot; 5. Lifting hole; 6. Sliding hole; 7. Roller frame; 8. First roller; 9. Roller groove; 10. Second roller; 11. Hinge frame; 12. Positioning post; 13. U-shaped groove; 14. Sliding groove; 15. Silicone sleeve; 16. First linear bearing; 17. Movable rod; 18. Second linear bearing; 19. Positioning support edge. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1-4 As shown, the present invention provides a scratch-resistant ceramic product clamping fixture, comprising a base 1, a bracket 2, and a gripper mechanism 3. The bracket 2 is fixedly installed on the base 1, and the gripper mechanism 3 is disposed within the bracket 2. The gripper mechanism 3 includes a telescopic mechanism 31, a lifting frame 32, and two positioning grippers 33. The bottom end of the telescopic mechanism 31 is fixedly installed on the base 1. A U-shaped slot 4 is formed on the bracket 2. A lifting hole 5 is formed in the middle of the U-shaped slot 4. The telescopic mechanism 31 is located below the lifting hole 5. The telescopic mechanism 31 drives the lifting frame 32 to move up and down through the lifting hole 5. Sliding holes 6 are formed on both the left and right sides of the U-shaped slot 4. The lifting frame 32 drives the positioning grippers 33 to clamp through the sliding holes 6 on both sides. Roller frames 7 are fixedly installed on both the front and rear sides of the upper side of the lifting frame 32. Two first rollers 8 are rotatably installed between the roller frames 7 on the front and rear sides. The upper ends of the two positioning clamps are formed with roller grooves 9. Second rollers 10 are rotatably installed in the roller grooves 9. When the positioning claw 33 clamps, the second rollers 10 press on the top of the first rollers 8. The principle is as follows: the telescopic mechanism 31 drives the lifting frame 32 to move up and down. When the lifting frame 32 moves up and down, it drives the positioning claws 33 on both sides to close or separate, thereby clamping the round ceramic product between the two first rollers 8 and the second roller 10. The first roller 8 can rotate in the roller frame 7, and the second roller 10 rotates in the roller groove 9, which can keep the round ceramic product stable during rotation. The clamping fixture of this utility model can be used to clamp ceramic products of different lengths, which is convenient for practical use. It can convert sliding friction into rolling friction, thereby effectively preventing the surface of the ceramic product from being scratched.

[0028] Furthermore: the positioning gripper 33 includes a first connecting rod 331, a telescopic rod 332, and a second connecting rod 333. The inner end of the first connecting rod 331 is rotatably fitted into the lifting frame 32, and the outer end of the first connecting rod 331 is rotatably fitted into the inner end of the telescopic rod 332. The telescopic rod 332 is slidably fitted into the sliding hole 6. The lower end of the second connecting rod 333 is movably fitted into the outer end of the telescopic rod 332. Hinges 11 are fixedly installed on both the left and right sides of the bracket 2. The second connecting rod 333 is rotatably fitted into the hinge 11, and the second connecting rod 333 and the hinge 11 form a [missing information - likely a specific configuration or structure]. The seesaw structure has roller groove 9 integrally formed on the upper end of the second connecting rod 333. When the lifting frame 32 moves up and down, the telescopic rods 332 on both sides can be driven to move in and out of the sliding hole 6 by the first connecting rod 331. When the telescopic rod 332 extends out of the sliding hole 6, it can drive the upper ends of the two second connecting rods 333 to move closer to each other. At this time, the ceramic product can be stably clamped between the two first rollers 8 and the second roller 10. Conversely, when the telescopic rod 332 retracts into the sliding hole 6, the upper ends of the two second connecting rods 333 will separate and open, which facilitates the loading and unloading of the ceramic product in the fixture.

[0029] In this utility model, when the telescopic mechanism 31 drives the lifting frame 32 to descend, it drives the upper ends of the two second connecting rods 333 to come together and clamp the ceramic product, ensuring that the ceramic product can be clamped in the first roller 8 and the second roller 10, reducing friction and avoiding scratches; when the telescopic mechanism 31 drives the lifting frame 32 to rise, it drives the upper ends of the two connecting rods to separate to achieve the opening effect. At the same time, the rise of the lifting frame 32 will cause the two first rollers 8 to lift the ceramic product, thereby facilitating the picking and placing of the ceramic product in the clamp.

[0030] Furthermore: the second connecting rod 333 has an obtuse angle structure, and the angular position of the second connecting rod 333 is rotatably fitted in the hinge frame 11; when the telescopic rod 332 extends out of the sliding hole 6, it can drive the upper ends of the two second connecting rods 333 to move closer to each other, thereby ensuring the stable clamping of the ceramic product between the two first rollers 8 and the second roller 10.

[0031] Furthermore, the first links 331 of the two positioning grippers 33 are staggered, so that the first links 331 on both sides do not interfere with each other.

[0032] Furthermore: both sides of the outer end of the telescopic rod 332 are formed with positioning posts 12, and the inner end of the second connecting rod 333 is formed with a U-shaped groove 13. Both sides of the U-shaped groove 13 are formed with sliding grooves 14. The positioning posts 12 are slidably installed in the sliding grooves 14. When the telescopic rod 332 extends out of the sliding hole 6, the positioning posts 12 can slide and rotate in the sliding grooves 14, thereby ensuring stable driving of the second connecting rod 333 to rotate around the hinge frame 11, ensuring stable clamping of ceramic products.

[0033] Furthermore, silicone sleeves 15 are respectively fitted onto the outer sides of the first roller 8 and the second roller 10, which can further rotate and scratch the surface of the ceramic product.

[0034] Furthermore: a first linear bearing 16 is fixedly installed in the lifting hole 5, and a movable rod 17 is driven and connected to the telescopic mechanism 31. The movable rod 17 is slidably installed in the first linear bearing 16, and the upper end of the movable rod 17 is fixedly connected to the lifting frame 32. This ensures that the movable rod 17 of the telescopic mechanism 31 can move stably in the lifting hole 5, thus ensuring the stable lifting effect of the lifting frame 32.

[0035] Furthermore, a second linear bearing 18 is installed inside the sliding hole 6, and the telescopic rod 332 is slidably installed in the second linear bearing 18; this ensures that the telescopic rod 332 can move stably within the sliding hole 6.

[0036] Furthermore, the lifting frame 32 has positioning support edges 19 formed on both the front and rear sides, and the bottom side of the roller frame 7 is placed on the positioning support edges 19; this can prevent the roller frame 7 from tilting or shifting, thereby ensuring that the first rollers 8 on both sides are at the same height, thus ensuring stable clamping of ceramic products.

[0037] Furthermore, the telescopic mechanism 31 can be any one of a pneumatic cylinder or a hydraulic cylinder; the appropriate pressure telescopic mechanism 31 can be selected according to the diameter of the ceramic product to achieve stable clamping action and can be applied to clamping round ceramic products of various sizes.

[0038] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A scratch-resistant ceramic product clamping fixture, comprising a base, a support, and a gripper mechanism, wherein the support is fixedly mounted on the base, and the gripper mechanism is disposed within the support; characterized in that: The gripper mechanism includes a telescopic mechanism, a lifting frame, and two positioning grippers. The bottom end of the telescopic mechanism is fixedly installed on the base. A U-shaped slot is formed on the support. A lifting hole is formed in the middle of the U-shaped slot. The telescopic mechanism is located below the lifting hole. The telescopic mechanism drives the lifting frame to move up and down through the lifting hole. Sliding holes are formed on both the left and right sides of the U-shaped slot. The lifting frame drives the positioning grippers to clamp through the sliding holes on both sides. Roller frames are fixedly installed on both the front and rear sides of the upper side of the lifting frame. Two first rollers are rotatably installed between the roller frames on the front and rear sides. The upper ends of the two positioning clamps are formed with roller grooves. Second rollers are rotatably installed in the roller grooves. When the positioning clamps hold the first rollers, the second rollers press on top of the first rollers.

2. The anti-scratch ceramic product clamping fixture according to claim 1, characterized in that: The positioning gripper includes a first connecting rod, a telescopic rod, and a second connecting rod. The inner end of the first connecting rod is rotatably fitted into the lifting frame, and the outer end of the first connecting rod is rotatably fitted into the inner end of the telescopic rod. The telescopic rod is slidably fitted into the sliding hole. The lower end of the second connecting rod is movably fitted into the outer end of the telescopic rod. Hinges are fixedly installed on both sides of the bracket. The second connecting rod is rotatably fitted into the hinges, and the second connecting rod and the hinges form a seesaw structure. The roller groove is integrally formed and set at the upper end of the second connecting rod.

3. The anti-scratch ceramic product clamping fixture according to claim 2, characterized in that: The second link has an obtuse angle structure, and its angular position is rotatably fitted into the hinge frame.

4. The anti-scratch ceramic product clamping fixture according to claim 2, characterized in that: The first links of the two positioning grippers are staggered.

5. A scratch-resistant ceramic product clamping fixture according to claim 2, characterized in that: The telescopic rod has positioning posts formed on both sides of its outer end, and the second connecting rod has a U-shaped groove formed on its inner end. Sliding grooves are formed on both sides of the U-shaped groove, and the positioning posts are slidably installed in the sliding grooves.

6. The anti-scratch ceramic product clamping fixture according to claim 1, characterized in that: Silicone sleeves are respectively fitted onto the outer sides of the first roller and the second roller.

7. A scratch-resistant ceramic product clamping fixture according to claim 1, characterized in that: A first linear bearing is fixedly installed inside the lifting hole. A movable rod is driven and connected to the telescopic mechanism. The movable rod is slidably installed in the first linear bearing, and the upper end of the movable rod is fixedly connected to the lifting frame.

8. A scratch-resistant ceramic product clamping fixture according to claim 2, characterized in that: A second linear bearing is installed inside the sliding hole, and the telescopic rod is slidably installed in the second linear bearing.

9. A scratch-resistant ceramic product clamping fixture according to claim 2, characterized in that: The lifting frame has positioning supports formed on both the front and rear sides, and the bottom side of the roller frame rests against the positioning supports.

10. A scratch-resistant ceramic product clamping fixture according to claim 1, characterized in that: The telescopic mechanism can be either a pneumatic cylinder or a hydraulic cylinder.

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