CN109202712B - Centerless grinding and hinging-free supporting tool - Google Patents
Centerless grinding and hinging-free supporting tool Download PDFInfo
- Publication number
- CN109202712B CN109202712B CN201811062351.XA CN201811062351A CN109202712B CN 109202712 B CN109202712 B CN 109202712B CN 201811062351 A CN201811062351 A CN 201811062351A CN 109202712 B CN109202712 B CN 109202712B
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- Prior art keywords
- swing arm
- block
- groove
- arm block
- circular
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- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 210000001624 hip Anatomy 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a centerless grinding and hinging-free supporting tool which comprises a swing arm, a supporting rod and an elastic swing arm block arranged between the swing arm and the supporting rod, wherein the upper part of the swing arm block can be fixedly connected with the swing arm, the lower part of the swing arm block can be fixedly connected with the supporting rod, and the middle part of the swing arm block is of a thin-wall structure with a pin waist relative to the upper part and the lower part of the swing arm block. It has the following advantages: the elastic swing of the swing arm on the support column is realized, pin-free hinge is formed, axial movement and radial runout of the swing arm relative to the support column during working are avoided, and the grinding quality of a workpiece can be greatly improved.
Description
Technical Field
The invention relates to a supporting tool for centerless grinding, in particular to a centerless grinding and hinging-free supporting tool.
Background
The swing arm 100 and the support rod 200 of the existing electromagnetic chuck centerless grinding tool are in a pin hinge mode, and the structure is shown in fig. 1 and 2. The swing arm pin 300 passes through the two holes 201 at the upper end of the support rod 200 and the swing arm hole 101, is tightly fixed on the swing arm 100 by the pin screw 400, and the two ends extend out in equal quantity and are hinged with the two holes 201 at the upper end of the support rod 200 in a small clearance so as to realize the small swing of the swing arm. The axial positioning of the swing arm 100 is limited by two end surfaces of the swing arm hole 101 and the inner surfaces of two holes 201 at the upper end of the support rod 200.
The existing two-point support tool is characterized in that the swing arm pin is in clearance fit with two holes at the upper end of the support rod, so that radial runout and axial runout of the swing arm relative to the support rod can be necessarily caused when the swing arm works, and the grinding workpiece supported by two support wheels on the swing arm is vibrated, so that grinding quality is affected.
Disclosure of Invention
The invention provides a centerless grinding and hinging-free supporting tool, which overcomes the defects of the prior art in the background art.
The technical scheme adopted for solving the technical problems is as follows:
a centerless grinding and hinging-free supporting tool comprises a swing arm and a supporting rod; the swing arm block is arranged between the swing arm and the support rod and has elasticity, the upper part of the swing arm block can be fixedly connected with the swing arm, the lower part of the swing arm block can be fixedly connected with the support rod, and the middle part of the swing arm block is of a thin-wall structure with a pin waist relative to the upper part and the lower part of the swing arm block.
In one embodiment: the upper part of the swing arm block is T-shaped, the section of the swing arm block is T-shaped, a T-shaped through groove which is matched with the upper part of the swing arm block is arranged in the middle of the lower end surface of the swing arm, a screw hole which is communicated with the T-shaped through groove is arranged on the upper end surface of the swing arm, a certain block screw is arranged, and the upper part of the swing arm block is screwed into the screw hole and fastened with the swing arm through the certain block screw.
In one embodiment: the lower part of the swing arm block is a heart-shaped cylinder, the lower end face of the heart-shaped cylinder is a cylindrical surface, the upper end of the supporting rod is provided with a circular through groove which is matched with the cylindrical surface and two clamping bolt holes which penetrate through two side walls of the circular through groove, the distance between the two clamping bolt holes is matched with the axial length of the heart-shaped cylinder, two clamping bolts are arranged, and the two clamping bolts are matched with the two clamping bolt holes in a threaded manner and can clamp the heart-shaped cylinder in the circular through groove.
In one embodiment: the bottom of the circular through groove is provided with a narrow slit through groove, and the length direction of the narrow slit through groove is parallel to the axial direction of the circular through groove.
In one embodiment: the swing arm block is made of titanium alloy materials.
Compared with the background technology, the technical proposal has the following advantages:
1. the swing arm block has elasticity, the upper part of the swing arm block can be fixedly connected with the swing arm, the lower part of the swing arm block can be fixedly connected with the support rod, the middle part of the swing arm block is of a thin-wall structure with a pin waist relative to the upper part and the lower part of the swing arm block, the elastic swing of the swing arm on the support column is realized, a pin-free hinged support tool is formed, the swing arm is prevented from axially moving in a serial manner and radially jumping relative to the support rod during working, and the grinding quality of a workpiece can be greatly improved.
2. The swing arm block is made of titanium alloy materials, so that the fatigue life of the swing arm block can be prolonged.
3. The swing arm block can be simultaneously applied to floating support tools with 2 points, 4 points and 8 points of centerless grinding.
4. The lower part of the swing arm block is a heart-shaped column body, the two clamping bolts are in fit and screwed connection with the two clamping bolt holes, the heart-shaped column body can be clamped in the circular through groove, and the included angle between the center line of the swing arm block and the center line of the supporting rod can be adjusted.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a conventional centerless grinding support tool with an electromagnetic chuck described in the background art.
Fig. 2 is a schematic exploded view of the conventional centerless grinding support tool with an electromagnetic chuck in the prior art.
Fig. 3 is an exploded schematic view of the centerless grinding hingeless supporting tool according to the embodiment.
Fig. 4 is a second exploded view of the centerless grinding hingeless support tool according to the present embodiment.
Fig. 5 is a schematic structural diagram of the centerless grinding hingeless supporting tool according to the embodiment.
Fig. 6 is an isometric view of the centerless grinding hingeless support tooling according to this embodiment.
Fig. 7 is an exploded perspective view of the centerless grinding hingeless support tooling according to the present embodiment.
Detailed Description
Referring to fig. 3 to 7, a centerless grinding and hinging-free supporting tool comprises a swing arm 10 and a supporting rod 20, wherein a supporting wheel is arranged on the swing arm; the swing arm assembly comprises a support column 20, a swing arm block 30, a pin waist structure 31 and a support tool, wherein the swing arm block 30 is arranged between the swing arm 10 and the support column 20 and is elastic, the upper part of the swing arm block 30 can be fixedly connected with the swing arm 10, the lower part of the swing arm block can be fixedly connected with the support column 20, the upper part and the lower part of the middle part of the swing arm block are thin-wall structures 31 with pin waists, namely the two large middle waists are formed, the pin waist structures 31 realize the elastic swing of the swing arm 10 on the support column 20, a support tool without pin hinging is formed, the swing arm 10 is prevented from axially moving in a stringing mode and radially jumping relative to the support column 20 during working, and the grinding quality of a workpiece can be greatly improved.
In this embodiment, the upper portion of the swing arm block 30 is in a T-shaped block shape, the cross section of the swing arm block is in a T-shape, a T-shaped through slot 11 adapted to the upper portion of the swing arm block 30 is provided in the middle of the lower end surface of the swing arm 10, a screw hole 12 for connecting the T-shaped through slot 11 is provided in the upper end surface of the swing arm 10, a fixing block screw 40 is provided, and the fixing block screw 40 is screwed into the screw hole 12 to fasten the upper portion of the swing arm block 30 to the swing arm 10.
In this embodiment, the lower portion of the swing arm block 30 is a heart-shaped column, the lower end surface of the heart-shaped column is a cylindrical surface, the upper end of the support rod 20 is provided with a circular through groove 21 adapted to the cylindrical surface and two clamping bolt holes 22 penetrating through two side walls of the circular through groove, the distance between the two clamping bolt holes 22 is adapted to the axial length of the heart-shaped column, two clamping bolts 50 are provided, and the two clamping bolts 50 are adapted to be screwed to the two clamping bolt holes 22 and can clamp the heart-shaped column in the circular through groove 21.
Preferably, a narrow slit through groove 23 is formed at the bottom of the circular through groove 21, the length direction of the narrow slit through groove 23 is parallel to the axial direction of the circular through groove 21, and by forming the narrow slit through groove 23, two side walls of the circular through groove 21 have a certain elasticity when being clamped by the clamping bolt 50, and a central column body embedded in the circular through groove 21 can be tightly held.
Preferably, the swing arm block 30 is made of titanium alloy material, so that the fatigue life of the swing arm block can be prolonged.
The construction of the swing arm block 30 according to the present embodiment is applicable to the 2-point, 4-point and 8-point floating support tools for centerless grinding, and the construction of the centerless grinding and hingeless support tool is described by taking the 2-point support tool as an example.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and therefore should not be taken as limiting the scope of the invention, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.
Claims (2)
1. A centerless grinding and hinging-free supporting tool comprises a swing arm and a supporting rod; the method is characterized in that: the swing arm block is arranged between the swing arm and the support rod and has elasticity, the upper part of the swing arm block can be fixedly connected with the swing arm, the lower part of the swing arm block can be fixedly connected with the support rod, and the middle part of the swing arm block is of a thin-wall structure with a pin waist opposite to the upper part and the lower part;
the upper part of the swing arm block is in a T-shaped block shape, the cross section of the swing arm block is in a T shape, a T-shaped through groove which is matched with the upper part of the swing arm block is arranged in the middle of the lower end surface of the swing arm, a screw hole which is communicated with the T-shaped through groove is arranged on the upper end surface of the swing arm, a certain block screw is arranged, and the upper part of the swing arm block is screwed into the screw hole through the certain block screw and fastened with the swing arm;
the lower part of the swing arm block is a heart-shaped column body, the lower end face of the heart-shaped column body is a cylindrical surface, the upper end of the supporting rod is provided with a circular through groove which is matched with the cylindrical surface and two clamping bolt holes which penetrate through two side walls of the circular through groove, the distance between the two clamping bolt holes is matched with the axial length of the heart-shaped column body, two clamping bolts are arranged, and the two clamping bolts are matched with the two clamping bolt holes in a threaded manner and can clamp the heart-shaped column body in the circular through groove;
the swing arm block is made of titanium alloy materials.
2. The centerless grinding hingeless support tooling of claim 1, wherein: the bottom of the circular through groove is provided with a narrow slit through groove, and the length direction of the narrow slit through groove is parallel to the axial direction of the circular through groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062351.XA CN109202712B (en) | 2018-09-12 | 2018-09-12 | Centerless grinding and hinging-free supporting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062351.XA CN109202712B (en) | 2018-09-12 | 2018-09-12 | Centerless grinding and hinging-free supporting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109202712A CN109202712A (en) | 2019-01-15 |
| CN109202712B true CN109202712B (en) | 2024-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811062351.XA Active CN109202712B (en) | 2018-09-12 | 2018-09-12 | Centerless grinding and hinging-free supporting tool |
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| Country | Link |
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| CN (1) | CN109202712B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153883A (en) * | 2019-07-04 | 2019-08-23 | 上海特安一凯轴承有限公司 | A kind of relocatable electric magnetic no-core fixture bearing of multiconductor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB283059A (en) * | 1927-06-08 | 1928-01-05 | Axel Gustaf Emanuel Hultgren | Centreless grinding machines |
| DE488732C (en) * | 1927-06-12 | 1930-01-14 | Axel Gustaf Emanuel Hultgren | Centerless grinding of cylindrical roller surfaces between two rotating grinding or guide wheels |
| CH649938A5 (en) * | 1980-10-08 | 1985-06-28 | Studer Ag Fritz | Process for grinding annular workpieces |
| CN101786254A (en) * | 2010-03-25 | 2010-07-28 | 浙江天马轴承股份有限公司 | Elastic floating support for bearing ring machining |
| CN201693415U (en) * | 2010-03-25 | 2011-01-05 | 浙江天马轴承股份有限公司 | Elastic floating support for bearing ring processing |
| CN208788312U (en) * | 2018-09-12 | 2019-04-26 | 福建龙溪轴承(集团)股份有限公司 | A kind of centerless grinding is without hinged supporting tool |
-
2018
- 2018-09-12 CN CN201811062351.XA patent/CN109202712B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB283059A (en) * | 1927-06-08 | 1928-01-05 | Axel Gustaf Emanuel Hultgren | Centreless grinding machines |
| DE488732C (en) * | 1927-06-12 | 1930-01-14 | Axel Gustaf Emanuel Hultgren | Centerless grinding of cylindrical roller surfaces between two rotating grinding or guide wheels |
| CH649938A5 (en) * | 1980-10-08 | 1985-06-28 | Studer Ag Fritz | Process for grinding annular workpieces |
| CN101786254A (en) * | 2010-03-25 | 2010-07-28 | 浙江天马轴承股份有限公司 | Elastic floating support for bearing ring machining |
| CN201693415U (en) * | 2010-03-25 | 2011-01-05 | 浙江天马轴承股份有限公司 | Elastic floating support for bearing ring processing |
| CN208788312U (en) * | 2018-09-12 | 2019-04-26 | 福建龙溪轴承(集团)股份有限公司 | A kind of centerless grinding is without hinged supporting tool |
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| Publication number | Publication date |
|---|---|
| CN109202712A (en) | 2019-01-15 |
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