CN112936075A - Polishing equipment for inner wall of valve seat ring - Google Patents
Polishing equipment for inner wall of valve seat ring Download PDFInfo
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- CN112936075A CN112936075A CN202110136679.7A CN202110136679A CN112936075A CN 112936075 A CN112936075 A CN 112936075A CN 202110136679 A CN202110136679 A CN 202110136679A CN 112936075 A CN112936075 A CN 112936075A
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- frame
- rotating
- support
- support frame
- valve seat
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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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/04—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to polishing equipment, in particular to polishing equipment for an inner wall of a valve seat ring. The invention provides polishing equipment for the inner wall of a valve seat ring, which can realize polishing and cooling. A device for polishing an inner wall of a valve seat ring, comprising: the first support plate is provided with a first support frame; the bearing seat is arranged on the first support frame; the air cylinder is arranged on the bearing block; the sander is connected to the telescopic rod of the cylinder; the rotating mechanism is arranged on the first supporting plate; the positioning auxiliary mechanism is connected among the rotating mechanism, the cylinder telescopic rod and the positioning mechanism; and the cooling mechanism is connected between the rotating mechanism and the first supporting plate. According to the invention, the motor is started, the motor output shaft rotates to drive the rotating support seat to rotate, so that the valve seat ring is driven to rotate, and the rotating effect is achieved.
Description
Technical Field
The invention relates to polishing equipment, in particular to polishing equipment for an inner wall of a valve seat ring.
Background
The valve seat insert is sealed valve and bears a accessory of high-speed impact, when producing the valve seat insert, and in order to make things convenient for follow-up equipment, people can polish its inner wall, and present polishing mode mainly is that people utilize the burnishing machine to polish the valve seat insert inner wall, and this kind of mode belongs to repeated manual labor, and the waste time has reduced work efficiency, so need design a polishing equipment.
The patent application: CN209439961U, it is 20190927 to disclose a burnishing device for valve seat circle, through starting first motor and second motor, first motor drives the dwang and rotates, the dwang drives second annular polishing and rotates, just can be quick polish the inner wall to the valve seat circle, the second motor drives first gear revolve, first gear drives second gear revolve, the second gear drives the cylinder and rotates, the cylinder drives first annular polishing piece and rotates, just can be quick polish the outer wall to the valve seat circle, thereby can be quick polish the valve seat circle, the device convenient operation, moreover, the steam generator is polishing the back, the surface can very scald one's hand, just so inconvenient people get the material, the device lacks cooling mechanism, the manpower has been consumeed.
Therefore, the polishing equipment for the inner wall of the valve seat ring, which can realize polishing and cooling, needs to be designed to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide polishing equipment aiming at the inner wall of a valve seat ring, which can realize polishing and cooling and aims to solve the defect that the conventional polishing mode in the background art consumes manpower.
In order to achieve the purpose, the invention provides the following technical scheme: a device for polishing an inner wall of a valve seat ring, comprising:
the first support plate is provided with a first support frame;
the bearing seat is arranged on the first support frame;
the air cylinder is arranged on the bearing block;
the sander is connected to the telescopic rod of the cylinder;
the rotating mechanism is arranged on the first supporting plate;
the rotating mechanism is provided with a positioning mechanism;
the positioning auxiliary mechanism is connected among the rotating mechanism, the cylinder telescopic rod and the positioning mechanism;
and the cooling mechanism is connected between the rotating mechanism and the first supporting plate.
The invention is further configured to: the rotating mechanism comprises:
the first support plate is provided with a first support frame;
the second support frame is provided with a first fixing frame;
the motor is arranged between the first fixing frame and the second supporting frame;
the rotating support seat is connected to the motor output shaft and is connected with the second support frame in a sliding mode.
The invention is further configured to: the positioning mechanism includes:
the second support frame is provided with a third support frame;
the sliding shafts are arranged on two sides of the third supporting frame;
the positioner is arranged between the two sliding shafts in a sliding manner;
the first spring is connected between the two sides of the positioner and the sliding shaft on the same side, and is wound on the sliding shaft;
the first reel is arranged on the positioner;
the arc-shaped convex block is arranged on the positioner.
The invention is further configured to: the positioning assistance mechanism includes:
the second support frame is provided with a fixed connection block;
the reel rotating shaft is rotatably arranged on the fixed connecting block;
the gear is arranged on the rotating shaft of the reel;
the rack rod is connected to the cylinder telescopic rod and meshed with the gear;
the torsion stay cord is wound on the reel rotating shaft, and one end of the torsion stay cord is connected with the first reel.
The invention is further configured to: cooling mechanism includes:
the first supporting plate is provided with a reinforcing fixing rod;
the fourth support frame is connected between the reinforcing fixed rod and the second support frame;
the cooling liquid storage box is arranged on the fourth support frame;
the cooling liquid storage box and the arc-shaped convex block are matched with the opener;
and a second spring is connected between the opener and the cooling liquid storage box and wound on the opener.
The invention is further configured to: still including the rotatory profile shifting mechanism of polished surface, the rotatory profile shifting mechanism of polished surface includes:
the first support frame is provided with the anti-shaking frame;
the support rotating shaft is rotatably arranged between the anti-shaking frame and the first support frame;
the first transmission assembly is wound between the support rotating shaft and the motor output shaft;
and the second transmission assembly is wound between the support rotating shaft and the cylinder.
The invention is further configured to: still including liquid monitoring mechanism, liquid monitoring mechanism includes:
the cooling liquid storage tank is internally provided with a fixed block;
the monitoring floating pole is arranged on the fixed block in a sliding manner;
and a third spring is connected between the monitoring floating mark rod and the fixed block and wound on the monitoring floating mark rod.
The invention is further configured to: the locator belongs to the metal material.
The invention has the technical effects and advantages that: 1. according to the invention, by starting the motor, the motor output shaft rotates to drive the rotating support seat to rotate, so that the valve seat ring is driven to rotate, and the rotating effect is achieved;
2. the positioning auxiliary mechanism rotates to drive the first reel to move backwards, so that the positioner and the arc-shaped lug move backwards, the first spring is stretched, and the fixing effect is achieved;
3. the rack rod moves downwards to drive the gear to rotate, so that the rotating shaft of the winding wheel is driven to rotate, the torsion pull rope pulls the first winding wheel to move backwards, the effect of auxiliary fixing is achieved, and the operation is time-saving and labor-saving;
4. the opener is driven to move upwards through the arc-shaped convex block, so that the second spring is compressed, and then cooling liquid flows into the valve seat ring, and the cooling effect is achieved;
5. the first transmission assembly and the support rotating shaft are driven to rotate through the rotation of the output shaft of the motor, so that the second transmission assembly and the cylinder are driven to rotate, the bearing seat rotates, and the rotating effect is achieved;
6. drive the monitoring buoy pole through the third spring and reset, in people can pour the coolant liquid into the coolant liquid storage box afterwards, reached the effect of monitoring.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the rotating mechanism of the present invention.
Fig. 3 is a schematic perspective view of the positioning mechanism of the present invention.
Fig. 4 is a schematic perspective view of the positioning assisting mechanism of the present invention.
Fig. 5 is a schematic perspective view of the cooling mechanism of the present invention.
Fig. 6 is a schematic perspective view of the polishing surface rotation shifting mechanism of the present invention.
Fig. 7 is a schematic perspective view of a liquid monitoring mechanism according to the present invention.
Labeled as: 1: first support plate, 2: first support frame, 3: bearing seat, 4: cylinder, 5: sander, 6: rotating mechanism, 61: second support frame, 62: first mount, 63: motor, 64: rotating the supporting seat, 7: positioning mechanism, 71: third support, 72: slide shaft, 73: positioner, 74: first spring, 75: first reel, 76: arc-shaped bump, 8: positioning assistance mechanism, 81: fixed engagement block, 82: reel shaft, 83: gear, 84: torque cord, 85: rack bar, 9: cooling mechanism, 91: fourth support frame, 92: reinforcing fixing rod, 93: coolant storage tank, 94: opener, 95: second spring, 10: polishing surface rotation displacement mechanism, 101: support rotating shaft, 102: anti-shaking frame, 103: first transmission assembly, 104: second transmission assembly, 11: liquid monitoring mechanism, 111: fixed block, 112: monitoring buoy stem, 113: and a third spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other or the two elements can interact with each other, so that the specific meaning of the terms in the invention can be understood according to specific situations by a person skilled in the art.
Referring to fig. 1-7, the device comprises a first support plate 1, a first support frame 2, a bearing seat 3, a cylinder 4, a sander 5, a rotating mechanism 6, a positioning mechanism 7, a positioning auxiliary mechanism 8 and a cooling mechanism 9, wherein the first support frame 2 is arranged on the rear side of the right part of the first support plate 1, the bearing seat 3 is arranged on the left part of the first support frame 2, the cylinder 4 is installed on the bearing seat 3, the sander 5 is connected on the telescopic rod of the cylinder 4, the rotating mechanism 6 is arranged on the first support plate 1, the positioning mechanism 7 is arranged on the rear part of the rotating mechanism 6, the positioning auxiliary mechanism 8 is connected between the telescopic rod of the cylinder 4 and the positioning mechanism 7, and the cooling mechanism 9 is connected between the rotating mechanism 6 and the first support plate 1.
The rotating mechanism 6 comprises a second supporting frame 61, a first fixing frame 62, a motor 63 and a rotating supporting seat 64, the second supporting frame 61 is arranged on the first supporting plate 1, the first fixing frame 62 is arranged on the right portion of the second supporting frame 61, the motor 63 is arranged between the first fixing frame 62 and the second supporting frame 61, the rotating supporting seat 64 is connected to an output shaft of the motor 63, and the rotating supporting seat 64 is connected with the second supporting frame 61 in a sliding mode.
The positioning mechanism 7 comprises a third support frame 71, sliding shafts 72, a positioner 73, first springs 74, first reels 75 and arc-shaped convex blocks 76, the third support frame 71 is arranged at the rear part of the second support frame 61, the sliding shafts 72 are arranged on the left side and the right side of the third support frame 71, the positioner 73 is arranged between the two sliding shafts 72 in a sliding mode, the first springs 74 are connected between the left side and the right side of the front part of the positioner 73 and the sliding shafts 72 on the same side, the first springs 74 are wound on the sliding shafts 72, the first reels 75 are arranged on the right part of the positioner 73, and the arc-shaped convex blocks 76 are arranged on the left part of the positioner 73.
The positioning auxiliary mechanism 8 comprises a fixed joint block 81, a reel rotating shaft 82, a gear 83, a torsion pull rope 84 and a rack rod 85, the fixed joint block 81 is arranged at the left part of the second support frame 61, the reel rotating shaft 82 is arranged on the fixed joint block 81 in a rotating mode, the gear 83 is arranged on the reel rotating shaft 82, the rack rod 85 is connected onto an expansion rod of the air cylinder 4, the rack rod 85 is meshed with the gear 83, the torsion pull rope 84 is wound on the reel rotating shaft 82, and one end of the torsion pull rope 84 is connected with the first reel 75.
The cooling mechanism 9 comprises a fourth supporting frame 91, a reinforcing fixing rod 92, a cooling liquid storage box 93, an opening and closing device 94 and a second spring 95, the reinforcing fixing rod 92 is arranged at the upper left part of the first supporting plate 1, the fourth supporting frame 91 is connected between the reinforcing fixing rod 92 and the second supporting frame 61, the cooling liquid storage box 93 is arranged on the fourth supporting frame 91, the opening and closing device 94 is arranged on the cooling liquid storage box 93 in a sliding mode, the cooling liquid storage box 93 and the arc-shaped convex blocks 76 are matched with the opening and closing device 94, the second spring 95 is connected between the opening and closing device 94 and the cooling liquid storage box 93, and the second spring 95 is wound on the opening and closing.
Still including the rotatory indexing mechanism 10 of polished surface, the rotatory indexing mechanism 10 of polished surface is including supporting axis of rotation 101, prevent shaking frame 102, first transmission assembly 103 and second transmission assembly 104, 2 right parts rear sides of first support frame are equipped with prevents shaking frame 102, prevent shaking the rotary type and be equipped with between frame 102 and the first support frame 2 and support axis of rotation 101, support between axis of rotation 101 and the motor 63 output shaft around having first transmission assembly 103, support around having second transmission assembly 104 between axis of rotation 101 and the cylinder 4.
The liquid monitoring device is characterized by further comprising a liquid monitoring mechanism 11, wherein the liquid monitoring mechanism 11 comprises a fixed block 111, a monitoring floating mark rod 112 and a third spring 113, the fixed block 111 is arranged on the inner rear wall of the cooling liquid storage tank 93, the monitoring floating mark rod 112 is arranged on the fixed block 111 in a sliding mode, the third spring 113 is connected between the monitoring floating mark rod 112 and the fixed block 111, and the third spring 113 is wound on the monitoring floating mark rod 112.
When people need to polish the inner wall of the valve seat ring, people can use the polishing equipment aiming at the inner wall of the valve seat ring, firstly people put the valve seat ring on the rotating mechanism 6, then the air cylinder 4 and the rotating mechanism 6 are started, the rotating mechanism 6 drives the valve seat ring to rotate, the telescopic rod of the air cylinder 4 drives the sander 5 and the positioning auxiliary mechanism 8 to move, so that the positioning mechanism 7 clamps the valve seat ring, and then the cooling mechanism 9 moves, when the sander 5 contacts the inner wall of the valve seat ring, people rotate the cylinder 4, thereby causing the bearing seat 3 to rotate and the sander 5 to rotate to polish the rotating valve seat insert, and when polishing is complete, people stop rotating the cylinder 4, then control the cylinder 4 telescopic link upward movement, people close the starting cylinder 4 and the rotating mechanism 6, the positioning auxiliary mechanism 8 and the positioning mechanism 7 reset, and the cooling mechanism 9 resets.
People put the valve seat circle between rotation supporting seat 64 and second support frame 61, start motor 63 afterwards, motor 63 output shaft rotates and drives rotation supporting seat 64 and rotate to drive the valve seat circle and rotate, reached the pivoted effect, when the polishing was accomplished, people closed motor 63.
The positioning assisting mechanism 8 rotates to drive the first reel 75 to move backwards, so that the positioner 73 and the arc-shaped lug 76 move backwards, the first spring 74 is stretched to achieve a fixing effect, then the first spring 74 resets to drive the positioner 73 and the arc-shaped lug 76 to reset, and the first reel 75 resets.
Put the valve retainer back between rotation supporting seat 64 and second support frame 61, people start cylinder 4, 4 telescopic links of cylinder drive sander 5 and rack bar 85 up-and-down motion, rack bar 85 downstream drives gear 83 and rotates, thereby drive reel pivot 82 and rotate, and then the first reel 75 of torsion stay cord 84 pulling moves backward, the effect of supplementary fixed has been reached, this operation labour saving and time saving, 4 telescopic links of cylinder drive rack bar 85 upward movement, thereby drive gear 83 and reel pivot 82 antiport, and then first spring 74 resets and drives locator 73 and arc lug 76 and resets.
People pour the coolant liquid into coolant liquid storage box 93, and arc lug 76 moves backward and contacts when ware 94 opens and shuts, and arc lug 76 drives ware 94 upward movement that opens and shuts to make second spring 95 compressed, and then the coolant liquid flows into in the valve seat circle, has reached refrigerated effect, when arc lug 76 resets and does not contact ware 94 that opens and shuts, second spring 95 drives ware 94 that opens and shuts and resets.
The output shaft of the motor 63 rotates to drive the first transmission assembly 103 and the support rotating shaft 101 to rotate, so as to drive the second transmission assembly 104 and the cylinder 4 to rotate, and a rotating effect is achieved.
People pour the coolant liquid into coolant liquid storage tank 93 to make monitoring buoy pole 112 rebound, third spring 113 is stretched, when there is not the coolant liquid in coolant liquid storage tank 93, third spring 113 drives monitoring buoy pole 112 and resets, and people can pour the coolant liquid into coolant liquid storage tank 93 afterwards, has reached the effect of monitoring.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A polishing device for the inner wall of a valve seat ring is characterized by comprising:
the device comprises a first supporting plate (1) and a first supporting frame (2), wherein the first supporting plate (1) is provided with the first supporting frame (2);
the bearing seat (3) is arranged on the first support frame (2);
the cylinder (4) is mounted on the bearing seat (3);
the sander (5) is connected to the telescopic rod of the cylinder (4);
the rotating mechanism (6) is arranged on the first supporting plate (1);
the rotating mechanism (6) is provided with a positioning mechanism (7);
the positioning auxiliary mechanism (8) is connected among the rotating mechanism (6), the telescopic rod of the air cylinder (4) and the positioning mechanism (7);
and a cooling mechanism (9) is connected between the rotating mechanism (6) and the first supporting plate (1).
2. A valve seat insert inner wall polishing apparatus according to claim 1, wherein the rotating mechanism (6) comprises:
the second support frame (61) is arranged on the first support plate (1);
the first fixing frame (62) is arranged on the second supporting frame (61);
the motor (63) is arranged between the first fixing frame (62) and the second supporting frame (61); the rotating support seat (64) is connected to the output shaft of the motor (63), and the rotating support seat (64) is connected with the second support frame (61) in a sliding mode.
3. A valve seat insert inner wall polishing apparatus according to claim 2, wherein the positioning mechanism (7) comprises:
the second support frame (61) is provided with a third support frame (71);
the sliding shafts (72) are arranged on the two sides of the third supporting frame (71);
the positioner (73), the positioner (73) is slidably arranged between the two sliding shafts (72);
the first spring (74) is connected between the two sides of the positioner (73) and the sliding shaft (72) on the same side, and the first spring (74) is wound on the sliding shaft (72);
a first reel (75), the positioner (73) being provided with the first reel (75);
the arc-shaped convex block (76) is arranged on the positioner (73).
4. A valve retainer inner wall polishing apparatus in accordance with claim 3, wherein the positioning assistance mechanism (8) comprises:
the second supporting frame (61) is provided with a fixed connection block (81);
a reel rotating shaft (82), the fixed joint block (81) is provided with the reel rotating shaft (82) in a rotating way;
a gear (83), the reel rotating shaft (82) is provided with the gear (83);
the telescopic rod of the cylinder (4) is connected with a rack rod (85), and the rack rod (85) is meshed with the gear (83);
a torsion pull rope (84), the torsion pull rope (84) is wound on the reel rotating shaft (82), and one end of the torsion pull rope (84) is connected with the first reel (75).
5. A valve retainer inner wall polishing device according to claim 4, wherein the temperature lowering mechanism (9) comprises:
the first supporting plate (1) is provided with a reinforcing fixing rod (92);
the fourth supporting frame (91) is connected between the reinforcing fixing rod (92) and the second supporting frame (61);
the cooling liquid storage tank (93) is arranged on the fourth support frame (91);
the opener (94), the cooling liquid storage box (93) is provided with the opener (94) in a sliding way, and the cooling liquid storage box (93) and the arc-shaped convex block (76) are matched with the opener (94);
and a second spring (95), wherein the second spring (95) is connected between the shutter (94) and the cooling liquid storage box (93), and the second spring (95) is wound on the shutter (94).
6. The device for polishing the inner wall of the valve seat ring according to claim 5, further comprising a polishing surface rotation displacement mechanism (10), wherein the polishing surface rotation displacement mechanism (10) comprises:
the anti-shaking frame (102) is arranged on the first support frame (2);
the support rotating shaft (101) is rotatably arranged between the anti-shaking frame (102) and the first support frame (2);
the first transmission assembly (103) is wound between the support rotating shaft (101) and the output shaft of the motor (63);
and the second transmission assembly (104) is wound between the support rotating shaft (101) and the cylinder (4).
7. A valve retainer inner wall polishing device according to claim 6, further comprising a liquid monitoring mechanism (11), wherein the liquid monitoring mechanism (11) comprises:
the fixed block (111) is arranged in the cooling liquid storage tank (93);
the monitoring buoy rod (112) is arranged on the fixed block (111) in a sliding mode;
and a third spring (113) is connected between the monitoring buoy rod (112) and the fixed block (111), and the third spring (113) is wound on the monitoring buoy rod (112).
8. A valve retainer inner wall polishing apparatus in accordance with claim 3, wherein the retainer (73) is made of a metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136679.7A CN112936075B (en) | 2021-02-01 | 2021-02-01 | Polishing equipment for inner wall of valve seat ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136679.7A CN112936075B (en) | 2021-02-01 | 2021-02-01 | Polishing equipment for inner wall of valve seat ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112936075A true CN112936075A (en) | 2021-06-11 |
| CN112936075B CN112936075B (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110136679.7A Active CN112936075B (en) | 2021-02-01 | 2021-02-01 | Polishing equipment for inner wall of valve seat ring |
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| Country | Link |
|---|---|
| CN (1) | CN112936075B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442043A (en) * | 2021-07-17 | 2021-09-28 | 江西远大保险设备实业集团有限公司 | Surface polishing equipment is used in drawer production |
| CN114473661A (en) * | 2022-02-18 | 2022-05-13 | 赵金妹 | Polishing and grinding equipment for round pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442043A (en) * | 2021-07-17 | 2021-09-28 | 江西远大保险设备实业集团有限公司 | Surface polishing equipment is used in drawer production |
| CN114473661A (en) * | 2022-02-18 | 2022-05-13 | 赵金妹 | Polishing and grinding equipment for round pipe |
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| Publication number | Publication date |
|---|---|
| CN112936075B (en) | 2022-08-12 |
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