Clamp for grinding and polishing composite material
By designing composite material grinding and polishing fixtures, the problems of low grinding efficiency, difficulty in handheld and low accuracy of composite material specimens are solved, and more efficient and higher precision polishing effects are achieved.
Patent Information
- Application Number
- CN202421639301.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, there are problems such as low polishing efficiency, difficulty in handhelding and low accuracy of composite specimens.
A composite material grinding and polishing fixture is designed, including a U-shaped seat, clamping block and limiting strip. After clamping the composite material specimen through the fixture, the hand-held fixture is then polished.
The polishing efficiency and accuracy of composite specimens are improved, and difficulties and insufficient precision are avoided during handheld polishing.
Smart Images
Figure CN222430408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a clamp, and more specifically, to a clamp for grinding and polishing composite materials. Background Art
[0002] In the process of performance testing of composite materials (such as metal-ceramic materials), composite specimens must be made first. Not only must the size of the specimens meet the requirements, but the specimens must also be polished to ensure that the flatness and roughness of the test surface meet the requirements. Currently, the polishing of composite specimens is achieved by holding the specimens and grinding them on grinding tools; however, usually, the size of composite specimens is relatively small, such as a cube with a size of 3mm×3mm×6mm, which is very difficult to hold, and in the case of hand-held grinding, the grinding accuracy will not meet the required requirements.
[0003] Therefore, in order to solve the problems of low efficiency, difficulty in holding and low precision in the existing handheld composite specimen grinding, this paper provides a fixture for composite material grinding and polishing. After the composite specimen is clamped by the fixture, it is then held by the hand for grinding. Summary of the invention
[0004] In order to overcome the disadvantages of the above technical problems, the utility model provides a clamp for grinding and polishing composite materials.
[0005] The utility model discloses a clamp for grinding and polishing composite materials, comprising a U-shaped seat, a clamping block and a limiting strip, wherein the U-shaped seat is provided with a containing cavity, and the clamping block is placed in the containing cavity; the characteristic is that the limiting strip is arranged on the U-shaped seat at the bottom of the containing cavity, a cylindrical hole is opened on the U-shaped seat, a cylindrical insert rod inserted into the cylindrical hole is fixed on the clamping block, a first locking bolt for fixing the clamping block is arranged on the U-shaped seat, and a second locking bolt for fixing the limiting strip is arranged on the U-shaped seat; a specimen cavity for clamping a composite material specimen is formed between the inner end surface of the clamping block, the bottom of the inner surface of the U-shaped seat and the inner end surface of the limiting strip.
[0006] The utility model provides a fixture for grinding and polishing composite materials. The U-shaped seat at the bottom of the accommodating cavity is provided with a columnar groove for preventing the edges and corners of the composite material specimen from being damaged. The inner end of the clamping block is provided with a chamfer for preventing the edges and corners of the composite material specimen from being damaged.
[0007] The utility model is a fixture for grinding and polishing composite materials. The limit strip is composed of a flat plate and a vertical plate fixed at the center of the flat plate. A limit groove for accommodating the flat plate is provided on the U-shaped seat at the bottom of the accommodating cavity. A guide groove matching the vertical plate is provided at the inner end of the clamping block.
[0008] The utility model is a fixture for grinding and polishing composite materials. The outer surface of the flat plate is provided with a long strip bolt groove matched with the end of the second locking bolt. The side surface of the clamping block is provided with a bolt groove matched with the end of the first locking bolt.
[0009] In the clamp for grinding and polishing composite materials of the utility model, the first locking bolt and the second locking bolt are both countersunk bolts, and the number of the first locking bolt and the second locking bolt are both two.
[0010] The beneficial effects of the present invention are as follows: the fixture for grinding and polishing composite materials of the present invention is provided with a U-shaped seat, a clamping block and a limit strip; the clamping block is fixed in the accommodating cavity of the U-shaped seat by a first locking bolt, and the limit strip is fixed to the U-shaped seat at the bottom of the accommodating cavity by a second locking bolt. In this way, a specimen cavity for clamping the specimen is formed between the inner end face of the clamping block, the inner end face of the limit strip and the bottom of the inner surface of the U-shaped seat; the composite material specimen to be ground and polished is placed in the specimen cavity, and is locked and fixed by the clamping block and the limit strip; then the composite material specimen can be ground and polished by holding the U-shaped seat and the clamping block; compared with the existing method of directly holding the specimen for grinding, the efficiency of grinding and polishing is improved, and the accuracy of grinding and polishing is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a front view of the fixture for grinding and polishing composite materials of the utility model;
[0012] Figure 2 It is a rear view of the fixture for grinding and polishing composite materials of the utility model;
[0013] Figure 3 It is a left side view of the fixture for grinding and polishing composite materials of the utility model;
[0014] Figure 4 It is a right side view of the fixture for grinding and polishing composite materials of the utility model;
[0015] Figure 5 It is a top view of the fixture for grinding and polishing composite materials of the utility model;
[0016] Figure 6 It is a bottom view of the fixture for grinding and polishing composite materials of the utility model;
[0017] Figure 7 , Figure 8 They are all three-dimensional diagrams of the fixture for grinding and polishing composite materials of the utility model;
[0018] Fig. 9 , Fig.10 They are all three-dimensional diagrams of the U-shaped seat in the utility model;
[0019] Fig.11 , Fig.12 All of them are three-dimensional diagrams of the clamping block in the utility model.
[0020] In the figure: 1 U-shaped seat, 2 clamping block, 3 limiting strip, 4 accommodating cavity, 5 cylindrical hole, 6 cylindrical plug rod, 7 first locking bolt, 8 second locking bolt, 9 specimen cavity, 10 cylindrical groove, 11 chamfer, 12 flat plate, 13 vertical plate, 14 limiting groove, 15 guide groove, 16 bolt groove. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0022] like Figures 1 to 6 As shown, the front view, rear view, left view, right view, top view and bottom view of the fixture for grinding and polishing composite materials of the utility model are respectively given, Figure 7 and Figure 8 The three-dimensional diagrams are given, and the composite material grinding and polishing fixture of the utility model is composed of a U-shaped seat 1, a clamping block 2 and a limit strip 3, as shown in FIG. Fig. 9 and Fig.10 A three-dimensional diagram of the U-shaped seat in the utility model is provided. Fig.11 and Fig.12 A three-dimensional diagram of the clamping block in the utility model is given, in which the cross section of the U-shaped seat 1 is U-shaped, a receiving cavity 4 is provided on the U-shaped seat 1, and the clamping block 2 is placed in the receiving cavity 4 of the U-shaped seat 1. A limiting strip 3 is arranged on the U-shaped seat 1 at the bottom of the receiving cavity 4.
[0023] In order to achieve the matching of the clamping block 2 and the U-shaped seat 1, the U-shaped seat 1 is provided with four cylindrical holes 5, and four cylindrical plug rods 6 are fixed on the clamping block 2. When the clamping block 2 is placed in the accommodating cavity 4 of the U-shaped seat 1, the four cylindrical plug rods 6 are aligned with the four cylindrical holes 5 at the same time, and the cylindrical plug rods 6 are inserted into the cylindrical holes 5 to achieve the assembly of the clamping block 2 and the U-shaped seat 1. After the clamping block 2 is placed in the accommodating cavity 4, the clamping block 2 is locked by the first locking bolt 7 set on the side of the U-shaped seat 1, so that the clamping block 2 is firmly fixed on the U-shaped seat 1.
[0024] The limiting strip 3 is fixed to the U-shaped seat 1 via two second locking bolts 8 arranged on the bottom surface of the U-shaped seat 1. After the clamping block 2 and the limiting strip 3 are fixed to the U-shaped seat 1, a specimen cavity 9 is formed between the inner end surface of the clamping block 2, the bottom of the inner surface of the U-shaped seat 1 and the inner end surface of the limiting strip 3. The specimen cavity 9 is used to fix the composite material specimen to be polished. After the specimen to be polished is placed in the specimen cavity 9, the clamping block 2 is used to tighten the specimen, and the limiting strip 3 is used to limit the specimen. By holding the U-shaped seat 1 and the clamping block 2, the specimen can be polished. Compared with the existing method of directly holding the specimen by hand to polish, the polishing efficiency and precision are higher, and the situation of grinding fingers can be avoided.
[0025] In order to fix the limiting strip 3 on the U-shaped seat 1 and ensure that the limiting strip 3 limits the specimen to be ground and polished, the limiting strip 3 shown is composed of a flat plate 12 and a vertical plate 13 fixed on the flat plate 12. A limiting groove 14 is provided at the bottom of the inner surface of the U-shaped seat 1. The flat plate 12 on the limiting strip 3 is placed in the limiting groove 14. The flat plate 12 can slide in the limiting groove 14 so as to adjust the position of the limiting strip 3 on the U-shaped seat 1 according to the specimen to be ground and polished. A guide groove 15 is provided on the inner end surface of the clamping block 2. The limiting strip 3 is placed in the guide groove 15. The inner end surface of the limiting strip 3 limits the specimen.
[0026] After the specimen to be polished is fixed in the specimen cavity 9, in order to prevent the corners of the specimen from being damaged by collision, a cylindrical groove 10 is provided on the U-shaped seat 1 at the bottom of the accommodating cavity 4, so that after the specimen is placed in the specimen cavity 9, the two corners of the specimen are in the cylindrical groove 10, thereby preventing the corners of the specimen from being damaged. Two chamfers 11 are provided on the inner end surface of the clamping block 2, and a space is formed at the position of the chamfers 11 to accommodate the corners of the specimen, thereby preventing the corners of the specimen from being damaged.
[0027] The number of the first locking bolts 7 and the second locking bolts 8 shown are both two, the two first locking bolts 7 are arranged on the side of the U-shaped seat 1, and the two second locking bolts 8 are arranged on the ground of the U-shaped seat 1. In order to ensure that the first locking bolts 7 and the second locking bolts 8 firmly fix the clamping block 2 and the limiting strip 3, a bolt groove 16 matching the end face of the first locking bolt 7 is provided on the side of the clamping block 2, and a bolt groove 16 matching the end face of the second locking bolt 8 is also provided on the limiting strip 3.
[0028] When in use, first adjust the extension length of the limit strip 3 according to the length of the specimen to be polished to ensure that the length of the specimen cavity 9 is consistent with the length of the specimen, and then tighten the limit strip 3 by tightening the second locking bolt 8. Then, align the cylindrical plug rod 6 with the cylindrical hole 5, put the clamping block 2 into the accommodating cavity 4, so that the inner end of the clamping block 2 is in a pressure state against the specimen, and tighten the first locking bolt 7 to achieve a firm fixation of the clamping block 2 on the U-shaped seat 1, and at the same time achieve a firm adherence to the specimen. Finally, hold the U-shaped seat 1 and the clamping block 2 to polish the specimen.
Claims
1. A fixture for grinding and polishing composite materials, comprising a U-shaped seat (1), a clamping block (2) and a limiting strip (3), wherein the U-shaped seat is provided with a receiving cavity (4), and the clamping block is placed in the receiving cavity; the characteristics are as follows: The limiting strip is arranged on a U-shaped seat at the bottom of the accommodating cavity, the U-shaped seat is provided with a cylindrical hole (5), a cylindrical insert rod (6) inserted into the cylindrical hole is fixed on the clamping block, a first locking bolt (7) for fixing the clamping block is arranged on the U-shaped seat, and a second locking bolt (8) for fixing the limiting strip is arranged on the U-shaped seat; a specimen cavity (9) for clamping the composite material specimen is formed between the inner end surface of the clamping block, the bottom of the inner surface of the U-shaped seat and the inner end surface of the limiting strip.
2. The fixture for grinding and polishing composite materials according to claim 1, characterized in that: The U-shaped seat (1) at the bottom of the accommodating cavity (4) is provided with a columnar groove (10) for preventing the edges and corners of the composite material specimen from being damaged, and the inner end of the clamping block (2) is provided with a chamfer (11) for preventing the edges and corners of the composite material specimen from being damaged.
3. The fixture for grinding and polishing composite materials according to claim 1 or 2, characterized in that: The limiting strip (3) is composed of a flat plate (12) and a vertical plate (13) fixed at the center of the flat plate. A limiting groove (14) for accommodating the flat plate is provided on the U-shaped seat (1) at the bottom of the accommodating cavity (4). A guide groove (15) matching the vertical plate is provided at the inner end of the clamping block (2).
4. The fixture for grinding and polishing composite materials according to claim 3, characterized in that: The outer surface of the plate (12) is provided with a long strip bolt groove (16) which matches with the end of the second locking bolt (8), and the side surface of the clamping block (2) is provided with a bolt groove which matches with the end of the first locking bolt.
5. The fixture for grinding and polishing composite materials according to claim 1 or 2, characterized in that: The first locking bolt (7) and the second locking bolt (8) are both countersunk bolts, and the number of the first locking bolt and the number of the second locking bolt are both two.