Clamping device of metallographic grinding and polishing machine

Abstract

The utility model belongs to the technical field of metallographic grinding and polishing, and particularly relates to a clamping device of a metallographic grinding and polishing machine, which comprises a base, a first vertical rod fixed on the base, a first fixed seat with an adjustable position fixed on the first vertical rod, a cross rod fixed on one side of the first fixed seat, a second fixed seat with an adjustable position fixed on the cross rod, and a third fixed seat fixed on the second fixed seat, a second vertical rod is fixed to the lower side of the second fixing base, a clamp is fixed to the tail end of the second vertical rod, and the position of the clamp can be freely adjusted, so that practicability is improved; and the arc-shaped clamping blocks matched with the limiting clamping plates are arranged, so that annular clamping can be transformed into flat-plate-shaped clamping, the device is suitable for more types of samples, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallographic grinding and polishing, in particular to a clamping device for a metallographic grinding and polishing machine. Background Technique

[0002] When observing the metallographic structure of a sample, the observed surface needs to meet the requirements of being smooth and flat. Therefore, it is necessary to carry out grinding and polishing treatment on a metallographic grinding and polishing machine. This process requires repeated grinding with sandpapers of different mesh numbers. If manually held and operated for a long time, the workload is large, and it is very easy to cause uneven grinding surfaces due to uneven application of force during manual holding and grinding.

[0003] Existing fixtures such as the clamping mechanism for grinding metallographic specimens in CN202021759742.X generally do not have height and lateral displacement adjustment mechanisms, with poor applicability. Moreover, the clamping mechanism is simply a flat plate for clamping. Different-shaped specimens generally require different-shaped fixtures for clamping. Only setting a flat plate fixture reduces the practicality. Summary of the Utility Model

[0004] The utility model provides a clamping device for a metallographic grinding and polishing machine, which solves the problems in the prior art that generally there are no height and lateral displacement adjustment mechanisms, with poor applicability, and the clamping mechanism is simply a flat plate for clamping. Different-shaped specimens generally require different-shaped fixtures for clamping. Only setting a flat plate fixture reduces the practicality.

[0005] The utility model provides the following technical solutions:

[0006] A clamping device for a metallographic grinding and polishing machine includes a base. A first vertical rod is fixed on the base. A first fixed seat with adjustable position is fixed on the first vertical rod. A cross bar is fixed on one side of the first fixed seat. A second fixed seat with adjustable position is fixed on the cross bar. A second vertical rod is fixed on the lower side of the second fixed seat. A fixture is fixed at the end of the second vertical rod. By setting the first vertical rod and the first fixed seat, the height of the fixture can be adjusted. By setting the cross bar and the second fixed seat, the position of the fixture in the horizontal direction can be adjusted, so that the position of the fixture can be freely adjusted to improve the practicality.

[0007] As a further improvement of the above solution.

[0008] Preferably, the fixture includes a fixture main body. The fixture main body is cylindrical. A plurality of arc-shaped clamping plates surrounding and forming a circular tube are arranged inside the fixture main body. The arc-shaped clamping plates are fixedly connected with the fixture main body through third fastening bolts. By adjusting the third fastening bolts, the arc-shaped clamping plates can be made to approach or move away radially. By adjusting the third fastening bolts, the arc-shaped clamping plates can approach or move away from each other, so as to complete the clamping of the specimen and facilitate the clamping operation.

[0009] Preferably, a rotating chamber is fixed on the outer side of the arc-shaped clamping plate. A third fastening bolt is rotatably connected in the rotating chamber. A corresponding third threaded hole is provided on the peripheral wall of the fixture body. The third fastening bolt is threadedly connected to the third threaded hole. The arc-shaped clamping plate can be driven to approach or move away radially through the cooperation of the third fastening bolt and the third threaded hole, so as to complete the clamping operation.

[0010] Preferably, the arc-shaped clamping plate contacts the bottom plate of the fixture body. During the process of rotating the third fastening bolt to drive the arc-shaped clamping plate, the bottom plate of the fixture body plays a limiting role to prevent the arc-shaped clamping plate from rotating, making the clamping more stable.

[0011] Preferably, a limiting hole is provided on the arc-shaped clamping plate. A limiting post is inserted into the limiting hole. The limiting post is fixedly connected to the arc-shaped clamping block. The arc-shaped clamping block is attached to the inner side of the arc-shaped clamping plate. The other side of the arc-shaped clamping block is a plane. An arc-shaped clamping block matching the limiting clamping plate is provided, so that the annular clamping can be deformed into a flat clamping, which is applicable to more types of specimens and improves the practicability.

[0012] Preferably, the limiting hole is located between the arc-shaped clamping plate and the bottom plate of the fixture body. After the limiting post is inserted into the limiting hole, the arc-shaped clamping block can be attached to the arc-shaped clamping plate, and the installation is more convenient.

[0013] Preferably, a third fixing seat is fixed on the base, and a first vertical rod is fixedly connected to the third fixing seat.

[0014] Preferably, a first groove is provided in the upper part of the first vertical rod. The first fixing seat is provided with a first through hole adapted to the first vertical rod. A first limiting boss is provided in the first through hole. The first limiting boss extends into the first groove so that the first fixing seat will not rotate. A plurality of first threaded holes are provided on the side of the first fixing seat. A first fastening bolt is threadedly connected in the first threaded hole. The cooperation of the first fastening bolt and the first threaded hole fixes the first fixing seat and the first vertical rod.

[0015] Preferably, a second groove is provided at the end of the cross bar, and the second groove faces upward. The second fixing seat is provided with a second through hole adapted to the cross bar. A second limiting boss adapted to the second groove is provided in the second through hole. The second limiting boss extends into the second groove so that the second fixing seat will not rotate. A plurality of second threaded holes are provided on the upper side of the second fixing seat. A second fastening bolt is threadedly connected in the second threaded hole. The cooperation of the second fastening bolt and the second threaded hole fixes the second fixing seat and the cross bar.

[0016] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present utility model.

[0017] In the present utility model, by providing the first vertical rod and the first fixing seat, the height of the clamp can be adjusted. By providing the cross bar and the second fixing seat, the position of the clamp in the horizontal direction can be adjusted, so that the position of the clamp can be freely adjusted to improve the practicability.

[0018] An arc-shaped clamping block is provided to cooperate with the limit clamping plate, so that the annular clamping can be deformed into a flat clamping, which is applicable to more types of specimens and improves the practicability. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a clamping device of a metallographic grinding and polishing machine provided by an embodiment of the present utility model;

[0020] Figure 2 It is an internal structural schematic diagram of a clamp of a clamping device of a metallographic grinding and polishing machine provided by an embodiment of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of a clamp of a clamping device of a metallographic grinding and polishing machine provided by an embodiment of the present utility model after adding an arc-shaped clamping block;

[0022] Figure 4 It is a structural schematic diagram of an arc-shaped clamping block of a clamping device of a metallographic grinding and polishing machine provided by an embodiment of the present utility model;

[0023] Figure 5 It is a structural schematic diagram of the arc-shaped clamping block and the arc-shaped clamping plate of a clamping device of a metallographic grinding and polishing machine provided by an embodiment of the present utility model being attached;

[0024] Figure 6 It is a partial structural schematic diagram of a rotating chamber and a third fastening bolt of a clamping device of a metallographic grinding and polishing machine provided by an embodiment of the present utility model.

[0025] Reference Signs:

[0026] 1. Base; 2. Clamp; 3. Cross bar; 4. Second groove; 5. Second fixing seat; 6. Second fastening bolt; 7. First fixing seat; 8. First vertical rod; 9. First groove; 10. First fastening bolt; 11. Third fixing seat; 12. Third fastening bolt; 13. Arc-shaped clamping plate; 14. Internal thread; 15. Limit hole; 16. Rotating chamber; 17. Hexagonal socket hole; 18. Arc-shaped clamping block. Detailed Embodiments

[0027] The embodiments of the present utility model will be described below with reference to the drawings in the embodiments of the present utility model.

[0028] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct communication or an indirect communication through an intermediate medium. Among them, "fixing" means that they are connected to each other and the relative positional relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only references to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the embodiments of the present utility model.

[0029] In the embodiments of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] In the embodiments of the present utility model, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0031] The reference to "an embodiment" or "some embodiments" etc. in this specification means that a specific feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present utility model. Thus, the statements "in an embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprise", "include", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0032] Refer to Figure 1-2, 6, Embodiment 1, a clamping device for a metallographic grinding and polishing machine, comprising a base 1, a third fixing base 11 is fixed on the base 1, a first vertical rod 8 is fixed on the third fixing base 11, a first groove 9 is provided in the upper part of the first vertical rod 8, a first fixing base 7 is sleeved on the first vertical rod 8, the first fixing base 7 is provided with a first through hole adapted to the first vertical rod 8, and a first limiting boss adapted to the first groove 9 is provided on the first fixing base 7. The first limiting boss extends into the first groove 9 so that the first fixing base 7 will not rotate. A plurality of first threaded holes are provided on the side of the first fixing base 7, and a first fastening bolt 10 is connected to the first threaded hole by a thread 14. The cooperation of the first fastening bolt 10 and the first threaded hole fixes the first fixing base 7 to the first vertical rod 8, and the first fixing base 7 can adjust the vertical height;

[0033] On one side of the first fixing base 7 away from the first fastening bolt 10, a cross bar 3 is fixed. A second groove 4 is provided at the end of the cross bar 3, and the second groove 4 faces upward. A second fixing base 5 is fixed on the cross bar 3. The second fixing base 5 is provided with a second through hole adapted to the cross bar 3, and a second limiting boss adapted to the second groove 4 is provided in the second through hole. The second limiting boss extends into the second groove 4 so that the second fixing base 5 will not rotate. The second fixing base 5 can move horizontally along the direction of the second groove 4. A plurality of second threaded holes are provided on the upper side of the second fixing base 5, and a second fastening bolt 6 is connected to the second threaded hole by a thread. The cooperation of the second fastening bolt 6 and the second threaded hole fixes the second fixing base 5 to the cross bar 3;

[0034] A second vertical rod is fixed on the lower side of the second fixing base 5, and a clamp 2 is fixedly connected to the end of the second vertical rod. The clamp 2 includes a cylindrical clamp body, the clamp body is threadedly connected to the second vertical rod, four arc-shaped clamping plates 13 are arranged inside the clamp body, internal threads 14 are provided on the inner sides of the arc-shaped clamping plates 13, a rotating chamber 16 is fixed on the outer sides of the arc-shaped clamping plates 13, a third fastening bolt 12 is rotatably connected inside the rotating chamber 16, an internal hexagonal hole 17 is provided at the end of the third fastening bolt 12, and four third threaded holes are provided on the peripheral wall of the clamp body. The third fastening bolt 12 is threadedly connected to the third threaded hole.

[0035] Refer to Figure 1-6 , Embodiment 2, the bottom of the arc-shaped clamping plate 13 is in contact with the bottom wall of the clamp body. A limiting hole 15 is provided at the bottom of the arc-shaped clamping plate 13. An arc-shaped clamping block 18 is attached to the inner side of the arc-shaped clamping plate 13. A limiting column is fixed at the bottom of the arc-shaped clamping block 18, and the limiting column is adapted to the limiting hole 15. The limiting column is inserted into the limiting hole 15, and both sides of the arc-shaped clamping block 18 are located on the connecting line from the center of the arc-shaped clamping plate 13 to the side wall of the arc-shaped clamping block 18.

[0036] Working principle:

[0037] By adjusting the position of the first fixing seat 7, the height of the cross bar 3 and the height of the fixture 2 can be adjusted. By adjusting the position of the second fixing seat 5, the lateral position of the second vertical bar can be adjusted, thereby adjusting the lateral position of the fixture 2;

[0038] By screwing the third fastening bolt 12, four arc-shaped clamping plates 13 can be driven to reciprocate along the direction of the third fastening bolt 12. When the four arc-shaped clamping plates 13 move inwards, the distance between the four arc-shaped clamping plates 13 gradually decreases and finally encloses into a tubular shape. By reducing the distance between the four arc-shaped clamping plates 13, the enclosed space is reduced, thereby completing the clamping of the specimen;

[0039] Through the cooperation of the limit post and the limit hole 15, the arc-shaped clamping block 18 can be made to fit with the arc-shaped clamping plate 13, and the arc-shaped clamping block 18 is limited on two opposite arc-shaped clamping plates 13. The other two arc-shaped clamping plates 13 move outwards to avoid interfering with the clamping of the arc-shaped clamping block 18. Driving the two arc-shaped clamping blocks 18 to approach each other can turn them into a clamping plate-shaped fixture 2;

[0040] In this application, a design that can move up and down and left and right is adopted, which is convenient for adjusting the position during grinding. The fixed sample method adopted is convenient and efficient, and the clamping method can also be quickly changed, changing the circular clamping to flat clamping.

[0041] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model; without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A clamping device for a metallographic grinding and polishing machine, characterized in that, It includes a base, a first vertical rod is fixed on the base, a position-adjustable first fixing seat is fixed on the first vertical rod, a cross rod is fixed on one side of the first fixing seat, a position-adjustable second fixing seat is fixed on the cross rod, a second vertical rod is fixed on the lower side of the second fixing seat, and a clamp is fixed at the end of the second vertical rod.

2. The clamping device of a metallographic grinding and polishing machine according to claim 1, wherein, The clamp includes a clamp body, the clamp body is cylindrical, a plurality of arc-shaped clamping plates enclosing a circular tube are arranged inside the clamp body, the arc-shaped clamping plates are fixedly connected with the clamp body through a third fastening bolt, and the arc-shaped clamping plates are made to approach or move away radially by adjusting the third fastening bolt.

3. The clamping device of a metallographic grinding and polishing machine according to claim 2, characterized in that, A rotating chamber is fixed on the outer side of the arc-shaped clamping plate, a third fastening bolt is rotatably connected inside the rotating chamber, a corresponding third threaded hole is opened on the peripheral wall of the clamp body, and the third fastening bolt is in threaded connection with the third threaded hole.

4. The clamping device of a metallographic grinding and polishing machine according to claim 3, characterized in that, The arc-shaped clamping plate contacts the bottom plate of the clamp body.

5. The clamping device of a metallographic grinding and polishing machine according to claim 4, characterized in that, A limiting hole is opened on the arc-shaped clamping plate, a limiting post is inserted into the limiting hole, the limiting post is fixedly connected with the arc-shaped clamping block, the arc-shaped clamping block is attached to the inner side of the arc-shaped clamping plate, and the other side of the arc-shaped clamping block is a plane.

6. The clamping device of a metallographic grinding and polishing machine according to claim 5, characterized in that, The limiting hole is located between the arc-shaped clamping plate and the bottom plate of the clamp body.

7. A clamping device for a metallographic grinding and polishing machine according to any one of claims 1-6, characterized in that, A third fixing seat is fixed on the base, and a first vertical rod is fixedly connected to the third fixing seat.

8. The clamping device of a metallographic grinding and polishing machine according to claim 7, characterized in that, A first groove is opened in the upper part of the first vertical rod, the first fixing seat is provided with a first through hole adapted to the first vertical rod, a first limiting boss is opened in the first through hole, the first limiting boss extends into the first groove so that the first fixing seat will not rotate, a plurality of first threaded holes are opened on the side of the first fixing seat, a first fastening bolt is in threaded connection in the first threaded hole, and the cooperation of the first fastening bolt and the first threaded hole fixes the first fixing seat and the first vertical rod.

9. The clamping device of a metallographic grinding and polishing machine according to claim 8, characterized in that, A second groove is opened at the end of the cross rod, the second groove faces upward, the second fixing seat is provided with a second through hole adapted to the cross rod, a second limiting boss adapted to the second groove is arranged in the second through hole, the second limiting boss extends into the second groove so that the second fixing seat will not rotate, a plurality of second threaded holes are opened on the upper side of the second fixing seat, a second fastening bolt is in threaded connection in the second threaded hole, and the cooperation of the second fastening bolt and the second threaded hole fixes the second fixing seat and the cross rod.

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