Positioning, dismounting and mounting tool for vertical dynamic balance of superhard grinding wheel

Abstract

The utility model relates to the technical field of grinding wheel dynamic balance detection, in particular to a positioning, dismounting and mounting tool for vertical dynamic balance of a superhard grinding wheel, which comprises a centering ring and a dismounting sleeve, a grinding wheel inner hole matching end face is arranged on the outer side face of the centering ring, a boss is arranged on the centering ring, and a center shaft matching hole is arranged on the centering ring. The center shaft matching hole penetrates through the boss; first clamping pieces are arranged on the outer side faces of the bosses, second clamping piece transverse channels are formed between the first clamping pieces and the centering ring, and second clamping piece vertical channels are reserved between the adjacent first clamping pieces in the circumferential direction. A boss containing hole is formed in the bottom end of the disassembly and assembly sleeve, second clamping pieces are arranged on the inner wall of the boss containing hole, first clamping piece vertical channels are formed between the adjacent second clamping pieces in the circumferential direction, and the second clamping pieces are matched with the first clamping pieces so that the centering ring and the super-hard grinding wheel can be rapidly disassembled from the dynamic balance detection machine through the disassembly and assembly sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic balance detection of grinding wheels, in particular to a positioning and disassembly tool for vertical dynamic balance of superhard grinding wheels. Background Art

[0002] Grinding wheels are the most important type of abrasive tools in grinding processing. Grinding wheels are divided into super-hard grinding wheels and ordinary grinding wheels. Super-hard grinding wheels are generally composed of a base and an abrasive layer. They have higher precision requirements than ordinary grinding wheels, and dynamic balancing detection is an important process to ensure the grinding accuracy of grinding wheels. Therefore, super-hard grinding wheels will be dynamically balanced before leaving the factory. The contents of dynamic balancing detection of grinding wheels using vertical dynamic balancing detection machines include grinding wheel installation, imbalance detection, weight removal, grinding wheel disassembly and other steps. Auxiliary centering rings are used during the installation of grinding wheels. In order to ensure the concentricity of the grinding wheel and the shaft, the clearance between the tooling and the shaft is controlled within 0.05mm, and the outer circle has a taper. After installation, the centering ring cannot be taken out directly, but can only be taken out together with the grinding wheel. At this time, due to the small clearance, it is difficult to take out the grinding wheel, which will lead to a decrease in work efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a positioning and disassembly tool for vertical dynamic balancing of superhard grinding wheels, which can facilitate the disassembly of the grinding wheel and the centering ring from the central axis of the dynamic balancing detection machine after the dynamic balancing detection of the grinding wheel is completed.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a positioning and disassembly tool for vertical dynamic balancing of superhard grinding wheels, including a centering ring and a disassembly sleeve, a boss is arranged on the top of the centering ring, a first clamp is arranged on the outer side of the boss, each first clamp is distributed along the circumferential direction and a second clamp vertical channel is arranged between adjacent first clamps, a second clamp transverse channel is reserved between each first clamp and the centering ring, a center axis matching hole is also arranged on the centering ring, the center axis matching hole passes through the boss, and a grinding wheel inner hole matching end face is arranged on the outer side surface of the centering ring; a boss accommodating hole is arranged on the bottom of the disassembly sleeve, a second clamp is arranged on the hole wall of the boss accommodating hole, each second clamp is distributed along the circumferential direction and a first clamp vertical channel is reserved between adjacent second clamps.

[0005] The outer side surface of the centering ring is provided with a grinding wheel inner hole matching hole suitable for matching with the grinding wheel inner hole, and the centering ring is provided with a center axis matching hole suitable for matching with the center axis of the dynamic balancing tester. The grinding wheel to be tested can be quickly positioned by means of the centering ring; the second clamps of the disassembly sleeve are matched with the first clamps on the centering ring to facilitate the rapid disassembly of the centering ring and the grinding wheel from the dynamic balancing tester.

[0006] As an optional solution, a threaded hole is provided at the top of the disassembly sleeve, the threaded hole is communicated with the boss receiving hole, the screw rod passes through the threaded hole and is threadedly matched with the threaded hole, and the bottom end of the screw rod is in the boss receiving hole and is provided with a central axis matching portion. The screw rod is matched with the threaded hole of the disassembly sleeve, and rotating the screw rod can lift the disassembly sleeve, thereby making it easier to disassemble the disassembly sleeve and the grinding wheel from the dynamic balancing test machine.

[0007] As an optional solution, the matching end face of the inner hole of the grinding wheel is a conical surface.

[0008] As an optional solution, the taper of the inner hole of the grinding wheel and the matching end face is 1°~5°.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. The grinding wheel can be quickly centered on the dynamic balancing test machine by using the centering ring, so as to improve the testing efficiency of the grinding wheel. The disassembly sleeve cooperates with the centering ring, so that the grinding wheel and the centering ring can be quickly disassembled from the dynamic balancing test machine after the dynamic balancing test of the grinding wheel is completed, which not only improves the testing efficiency of the grinding wheel but also reduces the difficulty of disassembling and assembling the grinding wheel; 2. The tooling structure of the present invention is simple, easy to manufacture and has strong applicability. The cost of the tooling can be further reduced by adopting a solution of cooperating a disassembly sleeve with multiple centering rings. At the same time, the tooling manufacturing cost is low, which can effectively solve the problem of low efficiency of dynamic balancing disassembly of superhard grinding wheels and greatly improve the testing efficiency BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the use of the tooling of the utility model;

[0012] Figure 2 is a top view of the positioning ring;

[0013] Figure 3 is a cross-sectional view of the positioning ring from a side perspective;

[0014] Figure 4 A top view of the disassembled cover;

[0015] Figure 5 A cross-sectional view of the dismantling sleeve from a side perspective;

[0016] In the figure: 1. Centering ring, 2. Boss, 3. First clamp, 4. Center shaft matching hole, 5. Grinding wheel inner hole matching end face, 6. Disassembly sleeve, 7. Second clamp, 8. Screw, 9. Superhard grinding wheel, 10. Dynamic balancing tester. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0018] See also Figure 1-Figure 5 A positioning and disassembly tool for vertical dynamic balancing of a superhard grinding wheel 9, comprising a centering ring 1 and a disassembly sleeve 6. A boss 2 is arranged on the top of the centering ring 1, and both the centering ring 1 and the boss 2 are disc-shaped. The outer side surface of the centering ring 1 is a grinding wheel inner hole matching end face 5. After the centering ring 1 is inserted into the inner hole of the grinding wheel, the grinding wheel inner hole matching end face 5 contacts and matches with the grinding wheel inner hole. The grinding wheel inner hole matching end face 5 is preferably a conical surface with a taper of 1°~5°, which is conducive to better matching with the inner hole of the grinding wheel. A central axis matching hole 4 is arranged on the centering ring 1, and the central axis matching hole 4 passes through the centering ring 1 and the boss 2, and the axis of the central axis matching hole 4 coincides with the central axis of the centering ring 1 and the boss 2.

[0019] After the superhard grinding wheel 9 is sleeved on the central axis of the dynamic balancing detection machine 10, the centering ring 1 is sleeved on the central axis of the dynamic balancing detection machine 10. The central axis of the dynamic balancing detection machine 10 and the central axis matching hole 4 are clearance matched. The centering ring 1 is inserted into the inner hole of the grinding wheel and the matching end face 5 of the inner hole of the grinding wheel is matched with the inner hole of the grinding wheel. The superhard grinding wheel 9 is centered relative to the central axis to facilitate the dynamic balancing detection of the superhard grinding wheel 9.

[0020] A first clamp 3 is arranged on the outer side surface of the boss 2. The number of the first clamp 3 is one or more than one. A second clamp transverse channel is reserved between the first clamp 3 and the centering ring 1. The second clamp 7 can pass through the second clamp transverse channel circumferentially relative to the center axis. When there are multiple first clamps 3, each first clamp 3 is distributed circumferentially along the boss 2. A second clamp vertical channel is reserved between each adjacent first clamp 3 along the circumferential direction. The second clamp 7 can pass through the second clamp vertical channel along the axial direction of the center axis.

[0021] A boss accommodating hole is provided at the bottom of the disassembly sleeve 6, and the boss accommodating hole can accommodate the boss 2. A second clamp 7 is provided on the hole wall of the boss accommodating hole. The distance between the top end of the second clamp 7 and the bottom end of the disassembly sleeve 6 is smaller than the height of the second clamp transverse channel. The second clamp 7 is one or more than one. Each second clamp 7 is distributed along the circumferential direction and a first clamp vertical channel is reserved between adjacent second clamps 7. The first clamp 3 can pass through the first clamp vertical channel. The second clamp 7 passes through the second clamp vertical channel while the first clamp 3 passes through the first clamp vertical channel.

[0022] After the dynamic balancing test of the superhard grinding wheel 9, the disassembly sleeve 6 is nested on the boss 2, and the disassembly sleeve 6 is rotated circumferentially to make each second clamp 7 correspond to each second clamp vertical channel, and each first clamp vertical channel corresponds to each first clamp 3, and the disassembly sleeve 6 is moved downward to make the second clamp 7 pass through the second clamp vertical channel and the first clamp 3 pass through the first clamp vertical channel, and then the disassembly sleeve 6 is rotated circumferentially to make each second clamp 7 in the corresponding second clamp transverse channel, and then the disassembly sleeve 6 is pulled upward, and each second clamp 7 corresponds to the first clamp 3 so that the centering ring 1 and the superhard grinding wheel 9 can be removed from the dynamic balancing tester 10.

[0023] See also Figure 1 In order to more conveniently use the disassembly sleeve 6 to remove the centering ring 1 and the superhard grinding wheel 9 from the dynamic balancing detection machine 10, as a preferred embodiment, a threaded hole is provided at the top of the disassembly sleeve 6, and the threaded hole is communicated with the boss accommodating hole. When the disassembly sleeve 6 is arranged on the boss 2 and cooperates with the boss 2, the threaded hole is located above the central axis of the dynamic balancing detection machine 10, and a screw rod 8 is provided in the threaded hole, and the screw rod 8 is threadedly matched with the threaded hole. The bottom end of the screw rod 8 is in the boss accommodating hole and is provided with a central axis matching portion.

[0024] After the dynamic balancing test of the super-hard grinding wheel 9, the disassembly sleeve 6 is nested on the boss 2 and each second clamp 7 is placed in the second clamp transverse channel. The screw 8 is rotated to move the screw 8 downward relative to the disassembly sleeve 6. After the central axis mating part of the screw 8 abuts against the top of the central axis, the screw 8 is continued to rotate to drive the disassembly sleeve 6 to lift upward, thereby driving the centering ring 1 and the super-hard grinding wheel 9 to lift upward and disengage from the dynamic balancing tester 10.

[0025] It should be noted that the length of the screw rod 8 should be greater than the height of the disassembly sleeve 6 to avoid the screw rod 8 being completely screwed into the boss receiving hole.

[0026] As a specific example of the first clamping member 3 and the second clamping member 7, both the first clamping member 3 and the second clamping member 7 are toothed plates.

[0027] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning and disassembly tool for vertical dynamic balancing of superhard grinding wheels, characterized by: The invention comprises a centering ring (1) and a disassembly sleeve (6), wherein a boss (2) is arranged on the top of the centering ring (1), a first clamp (3) is arranged on the outer side surface of the boss (2), each first clamp (3) is distributed along the circumferential direction and a second clamp vertical channel is arranged between adjacent first clamps (3), a second clamp transverse channel is reserved between each first clamp (3) and the centering ring (1), a center shaft matching hole (4) is also arranged on the centering ring (1), the center shaft matching hole (4) passes through the boss (2), and a grinding wheel inner hole matching end face (5) is arranged on the outer side surface of the centering ring (1); a boss accommodating hole is arranged on the bottom of the disassembly sleeve (6), a second clamp (7) is arranged on the hole wall of the boss accommodating hole, each second clamp (7) is distributed along the circumferential direction and a first clamp vertical channel is reserved between adjacent second clamps (7).

2. The positioning and disassembly tool for vertical dynamic balancing of superhard grinding wheels according to claim 1, characterized in that: A threaded hole is provided at the top of the disassembly sleeve (6), the threaded hole is communicated with the boss receiving hole, the screw rod (8) passes through the threaded hole and is threadably matched with the threaded hole, and the bottom end of the screw rod (8) is in the boss receiving hole and is provided with a central axis matching portion.

3. The positioning and disassembly tool for vertical dynamic balancing of superhard grinding wheels according to claim 2, characterized in that: The matching end surface (5) of the inner hole of the grinding wheel is a conical surface.

4. The positioning and disassembly tool for vertical dynamic balancing of superhard grinding wheels according to claim 3, characterized in that: The taper of the inner hole of the grinding wheel and the matching end surface (5) is 1°~5°.

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