CN212683554U - Clamping mechanism for grinding wheel of grinding machine - Google Patents
Clamping mechanism for grinding wheel of grinding machine Download PDFInfo
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- CN212683554U CN212683554U CN202020794198.6U CN202020794198U CN212683554U CN 212683554 U CN212683554 U CN 212683554U CN 202020794198 U CN202020794198 U CN 202020794198U CN 212683554 U CN212683554 U CN 212683554U
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- chuck
- clamping
- grinding wheel
- grinding
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- 230000007246 mechanism Effects 0.000 title claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 2
- 229910001651 emery Inorganic materials 0.000 abstract description 20
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to a fixture for grinding machine emery wheel relates to grinding machine equipment field, carries out the centre gripping for solving the emery wheel that is less than 1mm thickness and fixes, and its technical scheme main points are: the grinding wheel clamping device comprises a first chuck plate, a second chuck plate and a clamping assembly for driving the first chuck plate and the second chuck plate to approach each other to clamp a grinding wheel; the edge of the grinding wheel protrudes beyond the outer edges of the first and second chucks. The edge of the first chuck clamping surface and the edge of the second clamping plate clamping surface are integrally provided with convex rings, and the two convex rings correspond to each other in position. The utility model has the advantages that: by reducing the contact area with the grinding wheel, the pressure intensity of the grinding wheel is improved and the stability of the grinding wheel erection is improved under the condition of the same acting force.
Description
Technical Field
The utility model relates to a grinding machine equipment field, concretely relates to a fixture for grinding machine emery wheel.
Background
A grinding machine is a machine tool that grinds the surface of a workpiece using a grinding tool. Most grinding machines perform grinding using a grinding wheel rotating at a high speed, and a few grinding machines perform grinding using oilstones, sanding belts and other grinders and free abrasives, such as honing machines, superfinishing machines, sanding belt grinders, grinding machines, polishing machines, and the like.
The existing clamping mechanism for the grinding wheel comprises a first cylindrical clamping plate 11 and a first positioning pipe 12 coaxially and fixedly connected to one side of the first clamping plate 11, wherein an external thread is formed in the outer peripheral surface of the first positioning pipe 12, a second clamping plate 13 is arranged on the first positioning pipe 12, and a first threaded hole 131 in threaded fit with the first positioning pipe 12 is formed in the second clamping plate 13. The grinding wheel 7 is in the shape of a ring plate and is sandwiched between a first clamping plate 11 and a second clamping plate 13.
When the second clamping plate is screwed at the root of the first positioning pipe, a gap of 0.5-1mm exists between the clamping surfaces of the first clamping plate and the second clamping plate due to machining errors. For the grinding wheel with the thickness larger than 1mm, the first clamping plate and the second clamping plate are tightly clamped on two sides of the grinding wheel through the threaded matching of the second clamping plate and the first positioning pipe. For some precision machining, grinding wheels with the thickness smaller than 1mm are often adopted for machining, even the thickness of some grinding wheels can reach 0.02mm, and the existing clamping mechanism cannot clamp and fix the grinding wheels at all.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a fixture for grinding machine emery wheel, its advantage can be less than 1mm thickness's emery wheel to thickness and carry out the centre gripping fixed, guarantee centre gripping stability.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a clamping mechanism for a grinding wheel of a grinding machine comprises a first chuck plate, a second chuck plate and a clamping assembly, wherein the clamping assembly drives the first chuck plate and the second chuck plate to mutually approach to clamp the grinding wheel; the edge of the grinding wheel protrudes out of the outer edges of the first chuck plate and the second chuck plate;
the edge of the first chuck clamping surface and the edge of the second clamping plate clamping surface are integrally provided with convex rings, and the two convex rings correspond to each other in position.
Through adopting above-mentioned technical scheme, when fixture during operation, the staff at first places the emery wheel between first (holding) chuck and second (holding) chuck, then drive first (holding) chuck and second (holding) chuck through clamping component and be close to each other, make first (holding) chuck and second (holding) chuck tightly lean on the both sides at the emery wheel, because first (holding) chuck and second (holding) chuck are great with emery wheel area of contact, every region that can not ensure the emery wheel can both receive balanced pressure, so the setting of bulge loop, through the area of contact with the emery wheel that reduces, thereby under the condition of same effort, the pressure that the emery wheel received has been improved, the stability that the emery wheel erect has been improved, and the bulge loop is located first (holding) chuck, the border department of second (holding) chuck, be closer to the cutting position of emery wheel, the stability of emery wheel cutting state has been ensured.
The present invention may be further configured in a preferred embodiment as: the first chuck is provided with a first through hole, and the second chuck is provided with a second through hole;
the clamping assembly comprises a bearing plate; one side of the bearing plate is vertically connected with a second positioning pipe, the second positioning pipe penetrates through the first through hole and the second through hole, and the outer peripheral surface of the second positioning pipe is provided with external threads; the second positioning pipe is provided with a clamping piece, and the clamping piece is provided with a second threaded hole in threaded fit with the second positioning pipe.
Through adopting above-mentioned technical scheme, when clamping component during operation, the staff embolias into the second registration arm respectively with first (holding) chuck, emery wheel, second (holding) chuck, makes first (holding) chuck lean on in accepting the board, then through the threaded connection of clamping piece and second registration arm, drives first (holding) chuck and second (holding) chuck and presss from both sides tightly each other to the realization is to emery wheel work, and clamping component simple structure, is convenient for maintain and operate.
The present invention may be further configured in a preferred embodiment as: a positioning column is arranged between the bearing plate and the second positioning pipe, one end face of the positioning column is fixedly connected with the bearing plate, the other end face of the positioning column is coaxially and fixedly connected with the second positioning pipe, and the diameter of the positioning column is equal to the diameter of the first through hole and the diameter of the second through hole; and the diameter of the positioning column is also equal to the inner diameter of the grinding wheel.
Through adopting above-mentioned technical scheme, the size of reference column equals with first perforation, second perforation, emery wheel internal diameter. After the first chuck plate, the grinding wheel and the second chuck plate are sleeved on the positioning column, the positioning column limits the first chuck plate, the grinding wheel and the second chuck plate to move in a staggered mode, and stable positions of the first chuck plate, the grinding wheel and the second chuck plate are guaranteed.
The present invention may be further configured in a preferred embodiment as: and a plurality of rotation-assisting openings are formed in the end face, deviating from the second chuck, of the clamping piece, and the rotation-assisting openings are formed around the second threaded hole.
Through adopting above-mentioned technical scheme, the artifical strength of twisting the clamping piece of revolving is limited, can't ensure first (holding) chuck, second (holding) chuck to the tight effort of emery wheel clamp, and the helping mouth of revolving improves the position that the instrument was inserted and is established, and the staff of being convenient for rotates the clamping piece through the instrument, has ensured the tight compactness of first (holding) chuck and second (holding) chuck clamp.
The present invention may be further configured in a preferred embodiment as: the first chuck and the second chuck are the same size.
Through adopting above-mentioned technical scheme, first (holding) chuck is the same with second (holding) chuck size, has not only reduced clamping mechanism's the manufacturing degree of difficulty, if first (holding) chuck or second (holding) chuck take place to damage the back, also be convenient for change. And because the first chuck plate and the second chuck plate have the same size, the stress on two sides of the grinding wheel is more stable.
The present invention may be further configured in a preferred embodiment as: an annular convex edge is arranged on the end face, away from the first chuck, of the second chuck, the annular convex edge is located at the edge of the second through hole, and the width between the inner ring surface and the outer ring surface of the annular convex edge is smaller than the width from the second threaded hole of the clamping piece to the outer peripheral face of the chuck.
By adopting the technical scheme, the width of the annular convex edge is smaller than that of the clamping piece, so that when the clamping piece is screwed with the second positioning pipe thread, the contact area between the clamping piece and the second chuck plate is smaller, the contact friction force is reduced, and the clamping piece screwing efficiency is improved.
The present invention may be further configured in a preferred embodiment as: transition fillets are formed in the edge of the positioning column.
By adopting the technical scheme, the first chuck plate, the second chuck plate and the grinding wheel are required to be sleeved on the positioning column, and the excessive round angle is formed, so that the first chuck plate, the second chuck plate and the grinding wheel are guided, the butt joint difficulty is reduced, and the butt joint efficiency is improved.
To sum up, the utility model discloses following beneficial effect has:
the thin grinding wheel clamping device comprises a first clamping plate, a second clamping plate, a clamping assembly and a clamping component, wherein the first clamping plate and the second clamping plate are positioned on two sides of the grinding wheel;
the clamping stability is improved, and due to the arrangement of the positioning column, the diameter of the inner wall of the positioning column is equal to that of the inner wall of the grinding wheel, so that when the grinding wheel and the positioning column are sleeved with each other, the free movement of the grinding wheel is limited, and the stability of the grinding wheel during working is guaranteed.
Drawings
FIG. 1 is a schematic structural view of a conventional grinding wheel clamping mechanism;
FIG. 2 is a schematic structural diagram of a conventional grinding wheel clamping mechanism;
fig. 3 is an exploded view of a grinding wheel clamping mechanism embodying the present embodiment.
In the figure, 11, the first splint; 12. a first positioning tube; 13. a second splint; 131. a first threaded hole; 2. a first chuck; 21. a first perforation; 3. a second chuck; 31. a second perforation; 4. a clamping assembly; 41. a bearing plate; 42. a positioning column; 43. a second positioning tube; 44. a clip; 441. a second threaded hole; 442. a rotation-assisted opening; 5. a convex ring; 6. an annular convex edge; 7. and (5) grinding wheels.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A clamping mechanism for a grinding wheel of a grinding machine comprises a first chuck plate 2 and a second chuck plate 3 which are arranged at two sides of a grinding wheel 7, and a clamping component 4 which drives the first chuck plate 2 and the second chuck plate 3 to be close to and clamp the grinding wheel 7, as shown in figure 2.
As shown in fig. 3, the first chuck 2 and the second chuck 3 have the same size, a first through hole 21 is formed in a central area of an end surface of the first chuck 2 along an axial direction of the first chuck 2, a second through hole 31 is formed in a central area of an end surface of the second chuck 3 along an axial direction of the second chuck 3, and a diameter of the first through hole 21 is equal to a diameter of the second through hole 31 and is equal to an inner diameter of the grinding wheel 7.
As shown in fig. 3, the clamping assembly 4 includes a cylindrical receiving plate 41, a positioning post 42 is coaxially and fixedly connected to an end surface of the receiving plate 41, a second positioning pipe 43 is coaxially and fixedly connected to an end surface of the positioning post 42 away from the receiving plate 41, a cylindrical clamping piece 44 is cooperatively used on the second positioning pipe 43, an external thread is disposed on an outer peripheral surface of the second positioning pipe 43, and a second threaded hole 441 in threaded engagement with the second positioning pipe 43 is disposed on an end surface of the clamping piece 44. When the clamping assembly 4 clamps and fixes the first chuck plate 2 and the second chuck plate 3, the first chuck plate 2, the grinding wheel 7 and the second chuck plate 3 are sequentially sleeved on the positioning column 42 through the second positioning tube 43, so that the first chuck plate 2 abuts against the side wall of the bearing plate 41, the clamping surfaces of the first chuck plate 2 and the second chuck plate 3 are arranged towards the grinding wheel 7, and finally the first chuck plate 2 and the second chuck plate 3 are driven to be close to each other through the threaded fit of the clamping piece 44 and the second positioning tube 43 and clamp the grinding wheel 7.
Because the diameter of the positioning column 42 is equal to the inner diameter of the grinding wheel 7, the deviation of the first chuck 2, the grinding wheel 7, the second chuck 3 and the positioning column 42 is limited in the process of sleeving the first chuck 2, the grinding wheel 7 and the second chuck 3, and the uniformity that the cutting edge of the grinding wheel 7 protrudes out of the first chuck 2 and the second chuck 3 is guaranteed. And the round border department that reference column 42 faced second registration arm 43 has seted up excessive fillet to establish the in-process at reference column 42 at first (holding) chuck 2, second (holding) chuck 3, emery wheel 7 cover, first (holding) chuck 2, second (holding) chuck 3, emery wheel 7 have played the effect of direction to the excessive fillet of reference column 42, have reduced the degree of difficulty that the cover was established, have improved the efficiency that the cover was established, are convenient for fix a position clamping component 4 fixedly.
The first chuck 2 and the second chuck 3 are in surface contact with the grinding wheel 7, when the clamping piece 44 and the second positioning tube 43 are screwed tightly, due to the influence of the clamping position relationship of the clamping assembly 4, the clamping acting force of the first chuck 2 and the second chuck 3 on the edge of the first through hole and the second through hole on the grinding wheel 7 is large, the stress on the rest positions is not balanced, the main cutting position of the grinding wheel 7 is located on the edge of the grinding wheel 7, the thickness of the grinding wheel 7 is between 0.02mm and 1mm, the texture is light and thin, and therefore when the grinding wheel 7 is used for cutting, the grinding wheel 7 is easily damaged. In order to solve the above problems, a convex ring 5 is integrally arranged at the edge of the clamping surface of the first chuck 2, a convex ring 5 is also integrally arranged at the position corresponding to the second chuck 3 and the second chuck 3, and the two convex rings 5 respectively protrude out of the clamping surfaces of the first chuck 2 and the second chuck 3, so that when the first chuck 2 and the second chuck 3 clamp the grinding wheel 7, the two convex rings 5 can be clamped at the side of the grinding wheel 7 and are positioned at the working edge of the grinding wheel 7, and therefore under the same clamping acting force, the clamping pressure is increased by reducing the clamping area, and further the stability of clamping the grinding wheel 7 is improved.
As shown in fig. 3, an annular convex edge 6 is coaxially disposed on the end surface of the second chuck 3 facing away from the first chuck 2, the annular convex edge 6 is integrally disposed with the second chuck 3, and the arm width of the annular convex edge 6 is smaller than that of the clamping piece 44, so that when the clamping piece 44 is in threaded connection with the second positioning tube 43, the clamping piece 44 can first contact the annular convex edge 6, and the contact between the clamping piece 44 and the side wall of the second chuck 3 is replaced by the arrangement of the annular convex edge 6, and the contact area is also reduced, thereby reducing the contact friction force, and saving labor when the clamping piece 44 rotates to contact the annular convex edge 6.
As shown in fig. 3, the end surface of the clamping piece 44 away from the positioning column 42 is provided with four rotation-assisting openings 442, and the four rotation-assisting openings 442 are uniformly distributed in the center of the second threaded hole 441. In order to ensure that the first chuck plate 2 and the second chuck plate 3 tightly clamp the grinding wheel 7, when the hands of a worker cannot continuously screw the chuck plates, the accessible tool is inserted into the rotation assisting opening 442, so that the rotation of the chuck plates is more easily driven, the pressure of the first chuck plate 2 and the second chuck plate 3 close to each other is ensured, and the stability of clamping the grinding wheel 7 is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A clamping mechanism for a grinding wheel (7) of a grinding machine, characterized in that: the grinding wheel clamping device comprises a first clamping disc (2), a second clamping disc (3) and a clamping assembly (4) for driving the first clamping disc (2) and the second clamping disc (3) to approach to each other to clamp a grinding wheel (7); the edge of the grinding wheel (7) protrudes out of the outer edges of the first chuck (2) and the second chuck (3);
the edge of the clamping surface of the first chuck (2) and the edge of the clamping surface of the second clamping plate (13) are integrally provided with convex rings (5), and the two convex rings (5) correspond to each other in position.
2. A clamping mechanism for a grinding wheel (7) of a grinding machine according to claim 1, characterized in that: the first chuck (2) is provided with a first through hole (21), and the second chuck (3) is provided with a second through hole (31);
the clamping assembly (4) comprises a bearing plate (41); one side of the bearing plate (41) is vertically connected with a second positioning pipe (43), the second positioning pipe (43) penetrates through the first through hole (21) and the second through hole (31), and the outer peripheral surface of the second positioning pipe (43) is provided with an external thread; the second positioning pipe (43) is provided with a clamping piece (44), and the clamping piece (44) is provided with a second threaded hole (441) in threaded fit with the second positioning pipe (43).
3. A clamping mechanism for a grinding wheel (7) of a grinding machine according to claim 2, characterized in that: a positioning column (42) is arranged between the bearing plate (41) and the second positioning pipe (43), one end face of the positioning column (42) is fixedly connected with the bearing plate (41), the other end face of the positioning column (42) is coaxially and fixedly connected with the second positioning pipe (43), and the diameter of the positioning column (42) is equal to the diameter of the first through hole (21) and the diameter of the second through hole (31); and the diameter of the positioning column (42) is also equal to the inner diameter of the grinding wheel (7).
4. A clamping mechanism for a grinding wheel (7) of a grinding machine according to claim 2, characterized in that: a plurality of rotation-assisting openings (442) are formed in the end face, away from the second chuck (3), of the clamping piece (44), and the rotation-assisting openings (442) are formed around the second threaded hole (441).
5. A clamping mechanism for a grinding wheel (7) of a grinding machine according to claim 1, characterized in that: the first chuck (2) and the second chuck (3) are the same size.
6. A clamping mechanism for a grinding wheel (7) of a grinding machine according to claim 2, characterized in that: an annular convex edge (6) is arranged on the end face, away from the first chuck (2), of the second chuck (3), the annular convex edge (6) is located at the edge of the second through hole (31), and the width between the inner ring surface and the outer ring surface of the annular convex edge (6) is smaller than the width from the second threaded hole (441) of the clamping piece (44) to the peripheral face of the chuck.
7. A clamping mechanism for a grinding wheel (7) of a grinding machine according to claim 3, characterized in that: transition fillets are formed at the edges of the positioning columns (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020794198.6U CN212683554U (en) | 2020-05-13 | 2020-05-13 | Clamping mechanism for grinding wheel of grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020794198.6U CN212683554U (en) | 2020-05-13 | 2020-05-13 | Clamping mechanism for grinding wheel of grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212683554U true CN212683554U (en) | 2021-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020794198.6U Active CN212683554U (en) | 2020-05-13 | 2020-05-13 | Clamping mechanism for grinding wheel of grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212683554U (en) |
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2020
- 2020-05-13 CN CN202020794198.6U patent/CN212683554U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A clamping mechanism for grinding wheel of grinder Effective date of registration: 20220530 Granted publication date: 20210312 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING SUNRISING ADVANCED MATERIAL CO.,LTD. Registration number: Y2022990000292 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231103 Granted publication date: 20210312 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING SUNRISING ADVANCED MATERIAL CO.,LTD. Registration number: Y2022990000292 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |