CN111941237A - Hardware polishing device - Google Patents
Hardware polishing device Download PDFInfo
- Publication number
- CN111941237A CN111941237A CN202010957209.2A CN202010957209A CN111941237A CN 111941237 A CN111941237 A CN 111941237A CN 202010957209 A CN202010957209 A CN 202010957209A CN 111941237 A CN111941237 A CN 111941237A
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- Prior art keywords
- workpiece
- polishing
- grinding
- workpiece holding
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000005498 polishing Methods 0.000 title claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- B24B27/00—Other grinding machines or devices
-
- 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
-
- 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
- B24B41/02—Frames; Beds; Carriages
-
- 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)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a hardware polishing device, and belongs to the technical field of workpiece polishing. The device comprises a polishing structure and a workpiece control position, wherein the workpiece control position comprises a workpiece holding structure, a linear driving mechanism and a rotary driving structure, the linear driving mechanism is in driving connection with the workpiece holding structure, the rotary driving structure is in driving connection with the workpiece holding structure, and the polishing structure and the workpiece holding structure are arranged in opposite positions. The polishing device is provided with the transverse, longitudinal and upper and lower sliding rails, so that the polishing structure and the workpiece can move transversely, longitudinally and vertically, the polishing structure can polish all the workpieces and different positions of the workpieces, and the polishing process is fully automatic without manual participation; the invention can polish a batch of workpieces at one time, and can effectively improve the polishing efficiency.
Description
Technical Field
The invention belongs to the technical field of workpiece polishing, and particularly relates to a hardware polishing device.
Background
The outer surface of the hardware needs to be polished in the production process, most of the hardware in the existing production plants is polished manually, and the hardware needs to be manually fed and discharged in the polishing process, so that the manual polishing mode is easy to cause damage to people; and only one polishing can be performed at a time, so that the polishing efficiency is very low.
The prior art discloses a steel watchcase polisher with shell, which comprises a frame, the frame top is fixed with the workstation, one side of workstation is fixed with two mill groups, and be used for driving two mill group pivoted drive assembly, the workstation is equipped with the slide bar, sliding connection has a brace table on the slide bar, two mill groups are including two mill that the part stacked, the mill outside all overlaps and is equipped with the mill shell, the mill shell is discoid box body and includes the casing, the mouth of polishing has been seted up to the casing, the mouth of polishing is located the top of brace table, the mill shell still includes can follow the rotatory spiral cover of casing axis, the size of spiral cover is greater than the size of the mouth of polishing. Cover the mill of polishing through the mill shell to seted up the mouth of polishing at the casing, reduced the exposed area of mill of polishing, reduced staff's injured possibility, and through the size of spiral cover control mouth of polishing, it will polish mouthful control at the minimum to treat the processing product that corresponds the difference. Although the grinding machine is provided with the shell, the grinding machine is convenient for protecting grinding personnel, the grinding process still needs manual participation, and batch full-automatic grinding cannot be realized.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a hardware polishing device, which can realize full-automatic polishing of a workpiece without manual intervention in the polishing process;
the invention also aims to provide a hardware polishing device, which can polish workpieces in batches and effectively improve polishing efficiency;
a final object of the present invention is to provide a hardware polishing device, which has a simple structure, low cost, and is easy to popularize and use.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a hardware polishing device which comprises a polishing structure and a workpiece control position, wherein the workpiece control position comprises a workpiece holding structure, a linear driving mechanism and a rotary driving structure, the linear driving mechanism is in driving connection with the workpiece holding structure, the rotary driving structure is in driving connection with the workpiece holding structure, and the polishing structure and the workpiece holding structure are oppositely arranged. The linear driving mechanism can move left and right of the workpiece holding structure, and the rotary driving structure can realize rotation of the workpiece holding structure, so that the polishing structure can polish all positions of the workpiece conveniently.
Further, the workpiece control position comprises a fixing plate, the linear driving mechanism is a stretching cylinder, a transverse sliding rail is arranged on the fixing plate, and the transverse sliding rail is in sliding connection with the workpiece holding structure. The stretching cylinder can control the workpiece holding structure to slide along the transverse sliding rail, and the polishing structure can polish the workpiece on the workpiece holding structure conveniently.
Further, the workpiece holding structure comprises a workpiece holding piece and a mounting plate, the workpiece holding piece is detachably connected to the mounting plate, and the mounting plate is connected to the transverse sliding rail in a sliding mode. The workpiece holding piece is a hollow cylinder and is detachably connected to the workpiece holding structure, more than one workpiece can be held by the workpiece holding piece, the workpiece penetrates through the workpiece holding piece, and two adjacent workpieces are tightly attached. When the workpiece polishing device is used, a workpiece is assembled on the workpiece holding piece, then the workpiece holding piece is installed on the workpiece holding structure to be polished, batch polishing of the workpieces can be achieved, and the workpiece polishing device is convenient to install before polishing and disassemble after polishing.
Furthermore, the workpiece holding piece is also provided with a fixing piece, the fixing piece is connected to the workpiece holding piece, and a fixing position for preventing the workpiece from loosening is formed after the fixing piece is connected with the workpiece holding piece.
Further, the rotary driving structure is a rotary motor, a rotary piece is arranged on the rotary motor, the rotary piece is movably connected with the rotary motor, a concave groove is formed in one end of the rotary piece, a protrusion is arranged on the workpiece holding piece, and the concave groove is connected with the protrusion in an adaptive mode. During the use, rotating electrical machines accessible rotating member drives the work piece dress and holds the piece and use itself as the axle and rotate, and the structure of polishing of being convenient for is polished each position of work piece.
Furthermore, the rotating part is also provided with an elastic part, and two ends of the elastic part respectively abut against the rotating motor and the rotating part. The elastic piece can be used for adjusting the tightness between the workpiece holding piece and the rotating motor, so that the workpiece holding piece can rotate conveniently and freely.
Furthermore, the workpiece holding structure further comprises a supporting cylinder, a supporting piece is arranged on the supporting cylinder, the supporting piece is in driving connection with the supporting cylinder, and the supporting cylinder can push the supporting piece to move and enables the supporting piece to be supported against the workpiece holding piece after moving.
Further, the polishing structure comprises a polishing assembly and a polishing assembly fixing plate, a longitudinal slide rail and a servo motor are arranged on the polishing assembly fixing plate, and the servo motor drives the polishing assembly to be connected to the longitudinal slide rail in a sliding mode after being connected with the polishing assembly in a driving mode. The servo motor can drive the polishing assembly to slide along the longitudinal rail, and the polishing assembly can polish all parts of the workpiece conveniently.
Furthermore, the polishing structure further comprises an upper sliding rail, a lower sliding rail and an air cylinder assembly, and the air cylinder assembly is in driving connection with the polishing assembly and then drives the polishing assembly to be in sliding connection with the upper sliding rail and the lower sliding rail. The air cylinder component can push the grinding component to slide along the upper and lower sliding rails, and when the grinding wheel is worn, the height of the grinding wheel can be flexibly adjusted, so that the grinding wheel is in contact with a workpiece at any time.
Furthermore, the air cylinder assembly comprises a main air cylinder and a fine adjustment air cylinder, the main air cylinder and the fine adjustment air cylinder are fixedly connected with the grinding assembly, and the main air cylinder plays a main role in adjusting the lifting process of the grinding assembly; the fine setting cylinder is upwards carried and is drawn the subassembly of polishing, forms the balanced action with the master cylinder, prevents to polish falling downwards of subassembly suddenly nature, simultaneously, when the small loss appears in the wheel of polishing, the accessible fine setting cylinder adjusts the lift of the subassembly of polishing, keeps the contact of wheel of polishing and work piece, can enough promote the security, can the energy can be saved again.
Further, the grinding assembly comprises a grinding wheel and a main motor, and the grinding wheel is in driving connection with the main motor. The main motor is used for driving the grinding wheel to rotate, and grinding of the workpiece is achieved.
The invention has the advantages that: compared with the prior art, firstly, the polishing device is provided with the transverse, longitudinal and upper and lower sliding rails, so that the polishing structure and the workpiece can move transversely, longitudinally and vertically, the polishing structure can polish all the workpieces and different positions of the workpieces, and the polishing process is fully automatic without manual participation; secondly, the batch of workpieces can be polished at one time, and polishing efficiency can be effectively improved; finally, the invention has simple structure, low cost and convenient popularization and use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the workpiece control bit of the present invention;
FIG. 3 is a schematic diagram of a disassembled state of the workpiece control bit according to the present invention;
FIG. 4 is a schematic view of a portion of the structure of the workpiece holding structure of the present invention;
FIG. 5 is a front view of a sanding structure of the present invention;
FIG. 6 is a rear view of the sanding structure of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to achieve the purpose, the technical scheme of the invention is as follows:
referring to fig. 1 to 6, the invention provides a hardware polishing device, which includes a polishing structure 1 and a workpiece control location 2, where the workpiece control location 2 includes a workpiece holding structure 21, a linear driving mechanism 22 and a rotary driving structure 23, the linear driving mechanism 22 is in driving connection with the workpiece holding structure 21, the rotary driving structure 23 is in driving connection with the workpiece holding structure 21, and the polishing structure 1 and the workpiece holding structure 21 are arranged in opposite positions. The linear driving mechanism 22 drives the workpiece holding structure 21 to move left and right, and the rotary driving structure 23 can realize the rotation of the workpiece holding structure 21, so that the polishing structure 1 can polish all positions of the workpiece conveniently.
In this example, the workpiece control station 2 further includes a fixing plate 24, the linear driving mechanism 22 is a stretching cylinder, and a transverse slide rail 241 is disposed on the fixing plate 24, and the transverse slide rail 241 is slidably connected to the workpiece holding structure 21. The stretching cylinder can control the workpiece holding structure 21 to slide along the transverse sliding rail 241, so that the polishing structure 1 can polish the workpiece on the workpiece holding structure 21 conveniently.
In this example, the workpiece holding structure 21 includes a workpiece holding member 211 and a mounting plate 212, and the workpiece holding member 211 is detachably connected to the mounting plate 212, and the mounting plate 212 is slidably connected to the transverse slide rail 241. The workpiece holding piece 211 is a hollow cylinder, more than one workpiece 217 can be held by the workpiece holding piece 211, the workpiece 217 penetrates through the workpiece holding piece 211, and two adjacent workpieces 217 are tightly attached. When the workpiece polishing device is used, a workpiece is assembled on the workpiece assembling and holding piece 211, then the workpiece assembling and holding piece 211 is installed on the workpiece assembling and holding structure 21 to be polished, batch polishing of the workpieces can be achieved, and the workpiece is convenient to install before polishing and disassemble after polishing.
In this example, the workpiece holder 211 is further provided with a fixing member 213, the fixing member 213 is connected to the workpiece holder 211, and the fixing member 213 forms a fixing position for preventing the workpiece from loosening after being connected with the workpiece holder 211.
In this example, the rotation driving structure 23 is a rotating motor, the rotating motor is provided with a rotating member 231, the rotating member 231 is movably connected with the rotating motor, one end of the rotating member 231 is provided with a concave groove 232, the workpiece holding member 211 is provided with a protrusion 214, and the concave groove 232 is in adaptive connection with the protrusion 214. During the use, rotating electrical machines accessible rotating member 231 drives work piece dress holder 211 and uses itself as the axle and rotate, and the structure of polishing 1 of being convenient for is polished each position of work piece.
In this example, the rotating member 231 is further provided with an elastic member 233, and two ends of the elastic member 233 respectively abut against the rotating motor and the rotating member 231. The elastic member 233 can be used to adjust the tightness between the workpiece holder 211 and the rotating motor, so that the workpiece holder 211 can be rotated conveniently and freely.
In this example, the workpiece mounting structure 21 further includes a propping cylinder 215, a propping member 216 is disposed on the propping cylinder 215, the propping member 216 is drivingly connected to the propping cylinder 215, and the propping cylinder 215 can push the propping member 216 to move and make the propping member 216 prop against the workpiece mounting member 211 after moving.
In this example, the polishing structure 1 includes a polishing assembly 11 and a polishing assembly fixing plate 12, a longitudinal slide rail 121 and a servo motor 122 are disposed on the polishing assembly fixing plate 12, and the servo motor 122 is connected with the polishing assembly 11 in a driving manner and then drives the polishing assembly 11 to be slidably connected to the longitudinal slide rail 121. The servo motor 122 can drive the polishing assembly 11 to slide along the longitudinal rail 121, so that the polishing assembly 11 can polish all parts of a workpiece conveniently.
In this example, the polishing structure 1 further includes an upper slide rail 13, a lower slide rail 13 and an air cylinder assembly 14, and the air cylinder assembly 14 is connected to the polishing assembly 11 to drive the polishing assembly 11 to be slidably connected to the upper slide rail 13 and the lower slide rail 13. The air cylinder assembly 14 can push the grinding assembly 11 to slide along the upper and lower sliding rails 13, and when the grinding wheel is worn, the height of the grinding wheel can be flexibly adjusted, so that the grinding wheel is in contact with a workpiece at any time.
In this example, the cylinder assembly 14 includes a main cylinder 141 and a fine adjustment cylinder 142, both the main cylinder 141 and the fine adjustment cylinder 142 are fixedly connected to the sanding assembly 11, and the main cylinder 141 plays a main role in adjusting the elevation of the sanding assembly 11; the fine setting cylinder 142 is upwards carried and is pulled the subassembly of polishing 11, forms the balanced action with master cylinder 141, prevents the subassembly of polishing suddenly and falls downwards, simultaneously, when the small loss appears in the wheel of polishing, the accessible fine setting cylinder adjusts the lift of the subassembly of polishing, keeps the contact of the wheel of polishing and work piece, can enough promote the security, again can the energy can be saved.
In this example, the grinding assembly 11 comprises a grinding wheel 111 and a main motor 112, and the grinding wheel 111 is in driving connection with the main motor 112. The main motor 111 is used for driving the grinding wheel 112 to rotate, so that grinding of the workpiece is achieved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a hardware grinding device, the device is including structure, the work piece control position of polishing, its characterized in that, the work piece control position holds structure, linear drive mechanism and rotary drive structure including the work piece dress, linear drive mechanism holds the structure drive with the work piece dress and is connected, and rotary drive structure holds the structure drive with the work piece dress and is connected, the structure of polishing sets up with the position of work piece dress relatively of holding the structure.
2. A hardware grinding apparatus as claimed in claim 1, wherein the workpiece control station further comprises a fixed plate, the linear drive mechanism is a tension cylinder, and the fixed plate is provided with a transverse slide rail slidably connected to the workpiece holding structure.
3. A hardware grinding apparatus as claimed in claim 2, wherein the workpiece holding structure comprises a workpiece holding member and a mounting plate, and the workpiece holding member is detachably connected to the mounting plate, and the mounting plate is slidably connected to the transverse slide rail.
4. A hardware grinding device as claimed in claim 3, wherein the workpiece holding member is further provided with a fixing member, the fixing member is connected to the workpiece holding member, and the fixing member and the workpiece holding member are connected to form a fixing position for preventing the workpiece from loosening.
5. The hardware grinding device as claimed in claim 3, wherein the rotary driving structure is a rotary motor, a rotary member is arranged on the rotary motor, the rotary member is movably connected with the rotary motor, a concave groove is formed in one end of the rotary member, a protrusion is arranged on the workpiece holding member, and the concave groove is connected with the protrusion in an adaptive mode.
6. A hardware grinding device as claimed in claim 5, wherein the rotating member is further provided with an elastic member, and two ends of the elastic member respectively abut against the rotating motor and the rotating member.
7. The hardware grinding device of claim 3, wherein the workpiece mounting and holding structure further comprises a supporting cylinder, the supporting cylinder is provided with a supporting member, the supporting member is in driving connection with the supporting cylinder, and the supporting cylinder can push the supporting member to move and enable the supporting member to be abutted against the workpiece mounting and holding member after the supporting member moves.
8. The hardware grinding device as claimed in claim 1, wherein the grinding structure comprises a grinding assembly and a grinding assembly fixing plate, a longitudinal slide rail and a servo motor are arranged on the grinding assembly fixing plate, and the servo motor is in driving connection with the grinding assembly and then drives the grinding assembly to be in sliding connection with the longitudinal slide rail.
9. The hardware grinding device of claim 8, wherein the grinding structure further comprises an upper slide rail, a lower slide rail and a cylinder assembly, and the cylinder assembly is in driving connection with the grinding assembly and drives the grinding assembly to be slidably connected to the upper slide rail and the lower slide rail.
10. A hardware grinding apparatus as claimed in claim 8, wherein the grinding assembly includes a grinding wheel and a main motor, the grinding wheel being in driving connection with the main motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957209.2A CN111941237A (en) | 2020-09-12 | 2020-09-12 | Hardware polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957209.2A CN111941237A (en) | 2020-09-12 | 2020-09-12 | Hardware polishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111941237A true CN111941237A (en) | 2020-11-17 |
Family
ID=73357360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010957209.2A Pending CN111941237A (en) | 2020-09-12 | 2020-09-12 | Hardware polishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111941237A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008016620U1 (en) * | 2008-06-17 | 2009-03-12 | Satisloh Gmbh | Device for grinding, fine grinding and / or polishing workpieces in optical quality, in particular of spherical lens surfaces in fine optics |
| JP3185622U (en) * | 2013-06-13 | 2013-08-22 | 鋭格精機股▲ふん▼有限公司 | Screw forming machine |
| CN104816182A (en) * | 2015-05-06 | 2015-08-05 | 佛山市普拉迪数控科技有限公司 | Fixture applicable to different cooling fin workpieces |
| CN204976029U (en) * | 2015-08-27 | 2016-01-20 | 江门市奥斯龙机械有限公司 | Rotatable many anchor clamps machine tool table |
| CN107433478A (en) * | 2017-08-21 | 2017-12-05 | 珠海承鸥卫浴用品有限公司 | Multi-station rotary working table |
| CN107717672A (en) * | 2017-09-28 | 2018-02-23 | 卓培琨 | A kind of quick sanding apparatus of hardware |
| CN207402594U (en) * | 2017-10-26 | 2018-05-25 | 安吉德卡办公系统有限公司 | A kind of automatical and efficient grinding apparatus |
| CN109397088A (en) * | 2018-12-18 | 2019-03-01 | 东莞市金太阳精密技术有限责任公司 | A kind of polishing machine of quick-replaceable bistrique or grinding head fixture |
| CN110587345A (en) * | 2019-10-21 | 2019-12-20 | 常州东风轴承有限公司 | Multi-station clamping tool for machining planet wheel shaft |
| CN212330636U (en) * | 2020-09-12 | 2021-01-12 | 深圳前海禾盈科技有限公司 | Hardware polishing device |
-
2020
- 2020-09-12 CN CN202010957209.2A patent/CN111941237A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008016620U1 (en) * | 2008-06-17 | 2009-03-12 | Satisloh Gmbh | Device for grinding, fine grinding and / or polishing workpieces in optical quality, in particular of spherical lens surfaces in fine optics |
| JP3185622U (en) * | 2013-06-13 | 2013-08-22 | 鋭格精機股▲ふん▼有限公司 | Screw forming machine |
| CN104816182A (en) * | 2015-05-06 | 2015-08-05 | 佛山市普拉迪数控科技有限公司 | Fixture applicable to different cooling fin workpieces |
| CN204976029U (en) * | 2015-08-27 | 2016-01-20 | 江门市奥斯龙机械有限公司 | Rotatable many anchor clamps machine tool table |
| CN107433478A (en) * | 2017-08-21 | 2017-12-05 | 珠海承鸥卫浴用品有限公司 | Multi-station rotary working table |
| CN107717672A (en) * | 2017-09-28 | 2018-02-23 | 卓培琨 | A kind of quick sanding apparatus of hardware |
| CN207402594U (en) * | 2017-10-26 | 2018-05-25 | 安吉德卡办公系统有限公司 | A kind of automatical and efficient grinding apparatus |
| CN109397088A (en) * | 2018-12-18 | 2019-03-01 | 东莞市金太阳精密技术有限责任公司 | A kind of polishing machine of quick-replaceable bistrique or grinding head fixture |
| CN110587345A (en) * | 2019-10-21 | 2019-12-20 | 常州东风轴承有限公司 | Multi-station clamping tool for machining planet wheel shaft |
| CN212330636U (en) * | 2020-09-12 | 2021-01-12 | 深圳前海禾盈科技有限公司 | Hardware polishing device |
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