Steel ball center line cutting self-centering clamp

Abstract

The utility model discloses a steel ball center wire cutting self-centering clamp, which relates to the technical field of wire cutting auxiliary processing, and comprises a lower pressing plate, and an upper pressing plate is detachably connected above the lower pressing plate. The upper pressing plate and the lower pressing plate are respectively provided with a plurality of first clamping through holes and second clamping through holes which correspond to each other in position, are arranged in a straight line and are through up and down; the first clamping through hole and the second clamping through hole are respectively communicated together through the first through groove and the second through groove; a steel ball is clamped between the first clamping through hole and the second clamping through hole; and one end of the first through groove and one end of the second through groove are respectively provided with a first positioning seam and a second positioning seam which correspond to each other in position. The steel ball clamping device can stably clamp a plurality of steel balls at the same time, the top point area and the bottom point area, perpendicular to the cutting wire direction, of the steel balls are exposed in the clamping process, contact damage is avoided, and the cutting wire can conveniently cut the steel balls to the most core portion along the center face.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting auxiliary processing, in particular to a steel ball center wire cutting self-centering fixture. Background Art

[0002] The steel balls used in friction experiments need to be tested for the friction morphology and other physical and chemical parameters of the vertex contact area, which are important indicators reflecting the friction and wear performance. Since the steel ball is round as a whole, it is not easy to be fixed, and it may slide during the friction process. It is also easy to accidentally touch the friction contact area on the top of the steel ball during the clamping process, causing human contamination and interfering with the analysis accuracy. This requires wire cutting through the center surface of the steel ball, which not only ensures that the contact area of ​​the steel ball remains stably at the top during the friction process, but also facilitates the placement and removal of the steel ball during characterization and analysis. However, the conventional wire cutting clamping method cannot cut multiple steel balls at the same time and cut to the core along the center surface of the steel ball, and the clamping process will cause wear of the contact area on the top of the steel ball, affecting the accuracy of subsequent experimental detection. Therefore, designing a wire cutting fixture that can be stable and accurate and will not damage the top of the steel ball during the cutting and clamping process is a technical problem that needs to be solved at present. Utility Model Content

[0003] The purpose of the utility model is to provide a self-centering fixture for wire cutting of steel balls, which solves the problem that the conventional wire cutting clamping method mentioned in the background technology cannot cut multiple steel balls at the same time and cut to the core along the center surface of the steel ball, and the clamping process will cause wear of the contact area on the top of the steel ball, affecting the accuracy of subsequent experimental detection.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model discloses a self-centering fixture for centerline cutting of a steel ball, comprising a lower pressing plate, wherein the lower pressing plate is provided with a plurality of second clamping through holes arranged in a straight line and passing through the upper and lower parts, wherein the second clamping through holes are connected together through a second through groove;

[0006] The upper pressing plate is detachably connected to the upper side of the lower pressing plate, and the upper pressing plate is provided with a plurality of first clamping through holes arranged in a straight line and passing through the upper and lower sides, the first clamping through holes are connected together through a first through slot, the first through slot corresponds to the position of the second through slot, the first clamping through hole corresponds to the position of the second clamping through hole, and a steel ball is clamped between the first clamping through hole and the second clamping through hole;

[0007] A second positioning slit is provided at one end of the second through-slot, and a first positioning slit is provided at one end of the first through-slot, and the second positioning slit corresponds to the first positioning slit in position.

[0008] Furthermore, the upper pressing plate and the lower pressing plate are both provided with bolt through holes at corresponding positions, and the upper pressing plate and the lower pressing plate are detachably connected together by means of bolts and nuts.

[0009] Furthermore, one end of the first through slot in the length direction is an open structure, and the other end is a closed structure. First fixing blocks are provided on both sides of the opening of the first through slot, and the first positioning gap is formed between the two first fixing blocks; one end of the second through slot in the length direction is an open structure, and the other end is a closed structure. Second fixing blocks are provided on both sides of the opening of the second through slot, and the second positioning gap is formed between the two second fixing blocks.

[0010] Furthermore, the first clamping through hole and the second clamping through hole are both arc-shaped.

[0011] Furthermore, the lower pressing plate is fixedly connected to the supporting plate.

[0012] Compared with the prior art, the beneficial technical effects of the present invention are:

[0013] The utility model is simple to operate and easy to use. It can stably clamp and position multiple steel balls at the same time, and expose the top and bottom areas of the steel balls to avoid contact damage. The cutting wire can be conveniently used to cut the steel balls to the core along the center surface of the steel balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the self-centering fixture for centerline cutting of a steel ball according to the present invention;

[0016] Figure 2 A top view of the upper pressing plate in the self-centering fixture for centerline cutting of a steel ball according to the present invention;

[0017] Figure 3 This is a top view of the lower pressure plate in the self-centering fixture for centerline cutting of a steel ball according to the present invention;

[0018] Figure 4 This is a structural schematic diagram of the first locating seam and the second locating seam in the self-centering fixture for centerline cutting of a steel ball according to the present invention.

[0019] Explanation of the accompanying drawings: 1. Loading plate; 2. First clamping through hole; 3. Second clamping through hole; 4. Bolt; 5. Steel ball; 6. Upper pressure plate; 7. First positioning gap; 8. Second positioning gap; 9. Lower pressure plate; 10. Bolt through hole; 11. Nut; 12. First through groove; 13. Second through groove; 14. First fixing block; 15. Second fixing block. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 4 As shown, the present embodiment discloses a self-centering fixture for cutting the center line of a steel ball, including a lower pressing plate 9, which is fixedly connected to the supporting plate 1. The lower pressing plate 9 is provided with a plurality of second clamping through holes 3 arranged in a straight line and passing through from top to bottom, and the second clamping through holes 3 are connected together through second through grooves 13. The upper part of the lower pressing plate 9 is detachably connected with an upper pressing plate 6, which is provided with a plurality of first clamping through holes 2 arranged in a straight line and passing through from top to bottom, and the first clamping through holes 2 are connected together through first through grooves 12, the first through grooves 12 and the second through grooves 13 correspond in position, the first clamping through hole 2 corresponds in position to the second clamping through hole 3, and the steel ball 5 is clamped between the first clamping through hole 2 and the second clamping through hole 3.

[0022] In this embodiment, the first clamping through hole 2 and the second clamping through hole 3 are equal in size and have diameters smaller than the diameter of the steel ball 5. In addition, the first clamping through hole 2 and the second clamping through hole 3 are both arc-shaped.

[0023] A second positioning slit 8 is provided at one end of the second through slot 13, and a first positioning slit 7 is provided at one end of the first through slot 12. In this embodiment, the first positioning slit 7 and the second positioning slit 8 correspond in position and have the same width, and the first positioning slit 7 and the second positioning slit 8 play a role in positioning the cutting wire during cutting.

[0024] As a way to achieve the detachable connection between the lower pressure plate 9 and the upper pressure plate 6, corresponding bolt holes 10 are provided on the upper pressure plate 6 and the lower pressure plate 9. The bolt holes 10 of the upper pressure plate 6 and the lower pressure plate 9 are detachably connected together by means of bolts 4 and nuts 11.

[0025] In this embodiment, one end of the first through groove 12 in the length direction is an open structure, and the other end is a closed structure. First fixing blocks 14 are provided on both sides of the opening of the first through groove 12, and a first positioning seam 7 is formed between the two first fixing blocks (14). One end of the second through groove 13 in the length direction is an open structure, and the other end is a closed structure. Second fixing blocks 15 are provided on both sides of the opening of the second through groove 13, and a second positioning seam 8 is formed between the two second fixing blocks 15.

[0026] like Figures 1 to 4 As shown, the use process of the utility model is as follows:

[0027] First, place the upper pressing plate 6 and the lower pressing plate 9 in correspondence with each other and make the bolt through holes 10 on them correspond to each other, insert the bolt 4 into each bolt through hole 10 respectively and install the nut 11 at the bottom of the bolt 4;

[0028] Then, pull up the upper pressing plate 6, place the steel ball 5 into the first clamping through hole 2 and the second clamping through hole 3 for positioning, and expose the top areas of the upper and lower ends of the steel ball 5, and then tighten the nut 11 for secondary fixation;

[0029] Finally, the supporting plate 1 is fixed on the wire cutting machine. During the wire cutting process, the cutting wire is passed through the first positioning slit 7 and the second positioning slit 8 to achieve the purpose of cutting the center surface of the steel ball 5 .

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A self-centering fixture for steel ball centerline cutting, characterized by: It comprises a lower pressing plate (9), on which a plurality of second clamping through holes (3) arranged in a straight line and extending vertically are provided, and the second clamping through holes (3) are connected together via a second through groove (13); An upper pressing plate (6) is detachably connected above the lower pressing plate (9), and the upper pressing plate (6) is provided with a plurality of first clamping through holes (2) arranged in a straight line and extending vertically, the first clamping through holes (2) are connected together through a first through groove (12), the first through groove (12) and the second through groove (13) are positioned correspondingly, the first clamping through hole (2) and the second clamping through hole (3) are positioned correspondingly, and a steel ball (5) is clamped between the first clamping through hole (2) and the second clamping through hole (3); A second positioning slit (8) is provided at one end of the second through slot (13), a first positioning slit (7) is provided at one end of the first through slot (12), and the second positioning slit (8) corresponds to the first positioning slit (7) in position.

2. The self-centering fixture for centerline cutting of steel balls according to claim 1, characterized in that: The upper pressing plate (6) and the lower pressing plate (9) are both provided with bolt through holes (10) at corresponding positions, and the upper pressing plate (6) and the lower pressing plate (9) are detachably connected together by means of bolts (4) and nuts (11).

3. The self-centering fixture for steel ball centerline cutting according to claim 1, characterized in that: One end of the first through slot (12) in the longitudinal direction is an open structure, and the other end is a closed structure; first fixing blocks (14) are provided on both sides of the opening of the first through slot (12); and the first positioning gap (7) is formed between the two first fixing blocks (14); One end of the second through slot (13) in the longitudinal direction is an open structure, and the other end is a closed structure. Second fixing blocks (15) are provided on both sides of the opening of the second through slot (13), and the second positioning gap (8) is formed between the two second fixing blocks (15).

4. The self-centering fixture for centerline cutting of a steel ball according to claim 1, characterized in that: The first clamping through hole (2) and the second clamping through hole (3) are both arc-shaped.

5. The self-centering fixture for steel ball centerline cutting according to claim 1, characterized in that: The lower pressing plate (9) is fixedly connected to the bearing plate (1).

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