Tool clamp for machining outer spherical surface of ceramic roller

Abstract

The utility model belongs to the technical field of work fixtures, and particularly discloses a work fixture for machining the outer spherical surface of a ceramic roller, which comprises a guide wheel, a supporting plate, a positioning mechanism, a roller, a grinding wheel, a limiting plate and a positioning plate, the supporting plate is mounted on a workbench of a grinding machine, and the positioning mechanism, the limiting plate and the positioning plate are mounted on the supporting plate; the roller is of a drum-shaped structure and is installed above the positioning plate, and the lower end of the roller makes contact with the upper end face of the positioning plate. The left end of the roller makes contact with the right end face of the limiting plate, and the right end face of the roller makes contact with the left end face of the positioning mechanism. The clamp is simple in structure, convenient to install, high in adjustability and capable of being suitable for machining rollers of various specifications; according to the clamp, the positioning mechanism and the limiting plate are adopted for limiting displacement of the roller in the horizontal direction, the V-shaped included angle is formed below the roller so that the roller can be conveniently placed, and machining precision is guaranteed while convenience is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to a tooling and fixture for processing the outer spherical surface of ceramic rollers. Background Technology

[0002] Ceramic spherical rollers are non-magnetic, extremely hard, and brittle, making it difficult for the rollers to rotate stably. Conventional centerless cylindrical grinding methods cannot effectively process them.

[0003] In the existing technology, steel spherical rollers are often clamped using a method of magnetic attraction positioning on the end face and circumferential V-shaped carbide support, in conjunction with a corundum grinding wheel to grind the outer spherical surface of the roller; however, ceramic rollers cannot be clamped in this way because of the non-magnetic properties of the material.

[0004] When using the MKROSA KRONOS S125 high-precision centerless cylindrical grinder, the grinder consists of a guide wheel, a support plate, and a grinding wheel. The working principle is to place the roller on the support plate and adjust the center height of the roller; the guide wheel rotates at low speed, driving the roller to rotate through friction; the grinding wheel rotates at high speed to remove the outer spherical material of the roller, completing the grinding. Currently, this equipment can only meet the stable processing of ordinary steel cylinders and cylindrical rollers, and cannot achieve stable processing of ceramic spherical rollers. Utility Model Content

[0005] To address the problems existing in the background art, this utility model provides a tooling fixture for machining the outer spherical surface of ceramic rollers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tooling fixture for processing the outer spherical surface of ceramic rollers, comprising a guide wheel, a support plate, a positioning mechanism, a roller, a grinding wheel, a limiting plate, and a positioning plate. The support plate is mounted on the worktable of a grinding machine, and the positioning mechanism, the limiting plate, and the positioning plate are mounted on the support plate. The roller has a drum-shaped structure and is mounted above the positioning plate. The lower end of the roller is in contact with the upper end face of the positioning plate. The left end of the roller is in contact with the right end face of the limiting plate, and the right end face of the roller is in contact with the left end face of the positioning mechanism.

[0007] The tray is a square flat plate. A first groove is provided in the middle of the front end face of the tray, and a second threaded hole is provided in the first groove. A first threaded hole is provided on the right side of the first groove, and a third threaded hole is provided on the left side of the first groove. A second groove is provided in the middle of the upper end face of the tray, and the axis of symmetry of the first groove and the second groove intersect.

[0008] The second groove is an inclined groove, and the depth of the front end of the second groove is greater than the depth of the rear end; a support block is provided in the second groove, the support block is adapted to the second groove, and the upper end surface of the support block is in contact with the outer wall of the roller.

[0009] The positioning mechanism comprises a support, a pointed bolt, a bolt mounting seat and a nut; the support is a "┏" shaped flat plate, a first through hole is arranged on the lower end side surface of the support, and the support is mounted on the first threaded hole of the supporting plate through the bolt; the bolt mounting seat is fixedly connected to the upper end surface of the support, and a through hole A is arranged on the side surface of the bolt mounting seat; the pointed bolt is arranged in the through hole A of the bolt mounting seat, and the pointed bolt is fixed through the nut, and the bolt tip of the pointed bolt is in contact with the right end surface of the roller.

[0010] The limiting plate is a "┏" shaped flat plate, a third through hole is arranged on the lower end of the front end surface of the limiting plate, and the limiting plate is mounted on the third threaded hole of the supporting plate through the bolt; the right end surface of the limiting plate is in contact with the left end surface of the roller.

[0011] The positioning plate is a square flat plate, and the positioning plate is matched with the first groove; a second through hole is arranged on the lower end of the positioning plate, and the positioning plate is mounted on the second threaded hole of the supporting plate through the bolt.

[0012] A positioning plate supporting inclined surface is arranged on the upper end surface of the positioning plate, and the positioning plate supporting inclined surface is in contact with the outer side wall of the roller; a "V-shaped angle" is formed between the supporting block and the positioning plate supporting inclined surface, and the roller is arranged above the "V-shaped angle".

[0013] The utility model discloses a kind of tooling fixtures for processing ceramic roller outer spherical surface, the fixture structure is simple, easy to install, adjustable performance is strong, can be adapted to various specifications of roller processing;The fixture adopts positioning mechanism and limiting plate to limit the displacement of roller in horizontal direction, and V-shaped angle is set below the roller to facilitate placing roller, convenient while ensuring the precision of processing. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is front view of the utility model.

[0015] Figure 2 It is top view of the utility model.

[0016] Figure 3 It is A-A section view.

[0017] Figure 4 It is schematic view of supporting plate.

[0018] Figure 5 It is schematic view of positioning mechanism.

[0019] Figure 6 It is schematic view of limiting plate.

[0020] Figure 7 It is schematic view of positioning plate.

[0021] In the figure: 1, guide wheel, 2, supporting plate, 3, positioning mechanism, 4, roller, 5, grinding wheel, 6, limiting plate, 7, positioning plate, 8, supporting block, 21, first groove, 22, second groove, 23, first threaded hole, 24, second threaded hole, 25, third threaded hole, 31, first through hole, 32, support, 33, pointed bolt, 34, bolt mounting seat, 35, nut, 331, bolt tip, 61, third through hole, 71, second through hole, 72, positioning plate support inclined surface. DETAILED DESCRIPTION

[0022] The technical solutions of the utility model will be described clearly and completely in combination with the drawings of the description, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0023] The drawings of the description will be combined below Figures 1-7 The specific embodiments of the utility model are further described in detail: a tool fixture for machining the outer spherical surface of ceramic roller, including guide wheel 1, supporting plate 2, positioning mechanism 3, roller 4, grinding wheel 5, limiting plate 6 and positioning plate 7, the supporting plate 2 is installed on the workbench of grinding machine, the supporting plate 2 is square flat plate, the front end face middle part of supporting plate 2 is equipped with first groove 21, and the second threaded hole 24 is arranged in the first groove 21;The right side of first groove 21 is equipped with first threaded hole 23, and the left side of first groove 21 is equipped with third threaded hole 25;The middle part of the upper end face of supporting plate 2 is equipped with second groove 22, and the symmetry axis of first groove 21 and second groove 22 intersects, second groove 22 is inclined slot, and the depth of the front end of second groove 22 is greater than that of the rear end;The second groove 22 is equipped with supporting block 8, the supporting block 8 is matched with the second groove 22, the supporting block 8 is welded in the second groove 22, the supporting block 8 is made of wear-resistant hard alloy material, and the upper end face of supporting block 8 is in contact with the outer side wall of roller 4;

[0024] The positioning mechanism 3, the limiting plate 6 and the positioning plate 7 are installed on the supporting plate 2; the roller 4 is in a drum-shaped structure, the roller 4 is installed above the positioning plate 7, and the lower end of the roller 4 is in contact with the upper end surface of the positioning plate 7; the positioning plate 7 is a square flat plate, and the positioning plate 7 is matched with the first groove 21; the lower end of the positioning plate 7 is provided with a second through hole 71, and the positioning plate 7 is installed on the second threaded hole 24 of the supporting plate 2 through a bolt; the upper end surface of the positioning plate 7 is provided with a positioning plate supporting inclined surface 72, the positioning plate supporting inclined surface 72 is in contact with the outer side wall of the roller 4; a V-shaped angle is formed between the supporting block 8 and the positioning plate supporting inclined surface 72, and the roller 4 is arranged above the V-shaped angle; the V-shaped angle between the supporting block 8 and the positioning plate supporting inclined surface 72 is used for placing the roller 4; in the process of machining, since the roller 4 is located between the guide wheel 1 and the grinding wheel 5, the guide wheel 1 and the grinding wheel 5 will give the roller 4 a downward force when rotating, and the V-shaped angle can form a support for the roller 4, thereby ensuring the machining precision.

[0025] The left end of the roller 4 is in contact with the right end surface of the limiting plate 6, and the right end surface of the roller 4 is in contact with the left end surface of the positioning mechanism 3; the limiting plate 6 is a ┏-shaped flat plate, the limiting plate 6 is made of wear-resistant hard alloy material, the lower end of the front end surface of the limiting plate 6 is provided with a third through hole 61, the limiting plate 6 is installed on the third threaded hole 25 of the supporting plate 2 through a bolt, and the right end surface of the limiting plate 6 is in contact with the left end surface of the roller 4; the positioning mechanism 3 comprises a support 32, a pointed bolt 33, a bolt mounting seat 34 and a nut 35; the support 32 is a ┏-shaped flat plate, the lower end side surface of the support 32 is provided with a first through hole 31, and the support 32 is installed on the first threaded hole 23 of the supporting plate 2 through a bolt; the bolt mounting seat 34 is fixedly connected to the upper end surface of the support 32, and the side surface of the bolt mounting seat 34 is provided with a through hole A; in actual use, the through hole A is a vertical long hole, so as to adjust the height of the pointed bolt 33, so as to be suitable for rollers 4 of different models; the pointed bolt 33 is made of wear-resistant hard alloy material, the pointed bolt 33 is arranged in the through hole A of the bolt mounting seat 34, the pointed bolt 33 is fixed through the nut 35, and the bolt top 331 of the pointed bolt 33 is in contact with the right end surface of the roller 4; in the use process, the extension length of the pointed bolt 33 can be adjusted by adjusting the nut 35, so that rollers 4 of various lengths can be machined; the positioning mechanism 3 and the limiting plate 6 are used for limiting the displacement of the roller 4 in the horizontal direction, so as to prevent the displacement of the roller 4 in the machining process; in the process of machining, the guide wheel 1 and the grinding wheel 5 move to the front and rear ends of the roller 4, the front end of the roller 4 is in contact with the guide wheel 1, and the rear end of the roller 4 is in contact with the grinding wheel 5, so as to realize the machining of the outer side wall of the roller 4.

[0026] The utility model uses the following process: first, install the supporting block 8 of the supporting plate 2 on the grinding machine workbench, then install the positioning mechanism 3, the limiting plate 6 and the positioning plate 7 on the supporting plate 2, and adjust the distance between the positioning mechanism 3 and the limiting plate 6, finally, install the roller 4 above the V-shaped angle between the positioning mechanism 3 and the limiting plate 6, after installation, start the machine tool, at this time, the guide wheel 1 and the grinding wheel 5 move to the front and rear ends of the roller 4, the front end of the roller 4 contacts the guide wheel 1, the rear end of the roller 4 contacts the grinding wheel 5, the grinding wheel 5 rotates, thereby realizing the processing of the outer side wall of the roller 4, when the processing is completed, the processing program is closed, the guide wheel 1 and the grinding wheel 5 are removed, the processed roller 4 is taken out, and whether the roller 4 is qualified is checked, if the roller 4 size is unqualified, the processing parameters of the machine tool are adjusted, if the roller 4 processing size is qualified, the unprocessed roller 4 is replaced and the processing is continued.

[0027] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.

[0028] The part not described in the utility model is prior art.

Claims

1. A tooling fixture for machining the outer spherical surface of a ceramic roller, comprising a base plate (2), a positioning mechanism (3), a roller (4), a limiting plate (6) and a positioning plate (7), characterized in that: The supporting plate (2) is installed on the workbench of the grinding machine, the positioning mechanism (3), the limiting plate (6) and the positioning plate (7) are installed on the supporting plate (2); the roller (4) is in a drum-shaped structure, the roller (4) is installed above the positioning plate (7), the lower end of the roller (4) is in contact with the upper end surface of the positioning plate (7), the left end of the roller (4) is in contact with the right end surface of the limiting plate (6), and the right end surface of the roller (4) is in contact with the left end surface of the positioning mechanism (3).

2. The tooling fixture for machining the outer spherical surface of a ceramic roller according to claim 1, wherein: The supporting plate (2) is a square flat plate, the middle of the front end surface of the supporting plate (2) is provided with a first groove (21), the first groove (21) is provided with a second threaded hole (24) therein, the right side of the first groove (21) is provided with a first threaded hole (23), and the left side of the first groove (21) is provided with a third threaded hole (25); the middle of the upper end surface of the supporting plate (2) is provided with a second groove (22), and the symmetry axes of the first groove (21) and the second groove (22) intersect.

3. The fixture of claim 2, wherein: the fixture is configured to hold the ceramic roller in a position such that the outer surface of the ceramic roller is accessible for machining. The second groove (22) is an inclined groove, the depth of the front end of the second groove (22) is greater than that of the rear end, and the second groove (22) is provided with a supporting block (8) therein, the supporting block (8) is matched with the second groove (22), and the upper end surface of the supporting block (8) is in contact with the outer side wall of the roller (4).

4. The fixture of claim 2, wherein: the fixture is configured to hold the ceramic roller in a position such that the outer surface of the ceramic roller is accessible for machining. The positioning mechanism (3) comprises a support (32), a pointed bolt (33), a bolt mounting seat (34) and a nut (35), the support (32) is a "┏" shaped flat plate, the lower end side surface of the support (32) is provided with a first through hole (31), and the support (32) is mounted on the first threaded hole (23) of the supporting plate (2) through a bolt; the bolt mounting seat (34) is fixedly connected to the upper end surface of the support (32), and the side surface of the bolt mounting seat (34) is provided with a through hole A; the pointed bolt (33) is arranged in the through hole A of the bolt mounting seat (34), the pointed bolt (33) is fixed through the nut (35), and the bolt tip (331) of the pointed bolt (33) is in contact with the right end surface of the roller (4).

5. The tooling fixture for machining the outer spherical surface of ceramic rollers according to claim 2, characterized in that: The limiting plate (6) is a "┏" shaped flat plate, the lower end of the front end surface of the limiting plate (6) is provided with a third through hole (61), the limiting plate (6) is mounted on the third threaded hole (25) of the supporting plate (2) through a bolt, and the right end surface of the limiting plate (6) is in contact with the left end surface of the roller (4).

6. The fixture of claim 3 wherein: the fixture is further characterized by: The positioning plate (7) is a square flat plate, and the positioning plate (7) is matched with the first groove (21); the lower end of the positioning plate (7) is provided with a second through hole (71), and the positioning plate (7) is mounted on the second threaded hole (24) of the supporting plate (2) through a bolt.

7. The tooling fixture for machining the outer spherical surface of a ceramic roller according to claim 3 or 6, wherein: The upper end surface of the positioning plate (7) is provided with a positioning plate supporting inclined surface (72), the positioning plate supporting inclined surface (72) is in contact with the outer side wall of the roller (4), a "V-shaped angle" is formed between the supporting block (8) and the positioning plate supporting inclined surface (72), and the roller (4) is arranged above the "V-shaped angle".

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