CN222134523U - Frequency conversion and modulation grinding equipment for special-shaped surface products - Google Patents
Frequency conversion and modulation grinding equipment for special-shaped surface products Download PDFInfo
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- CN222134523U CN222134523U CN202420652702.7U CN202420652702U CN222134523U CN 222134523 U CN222134523 U CN 222134523U CN 202420652702 U CN202420652702 U CN 202420652702U CN 222134523 U CN222134523 U CN 222134523U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 5
- 206010066054 Dysmorphism Diseases 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001651 emery Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002633 protecting effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
本实用新型提供异形面产品变频调频磨削设备，涉及机械加工技术领域，包括：支撑架，所述支撑架的内表壁之间转动连接有第一双向螺纹杆，所述第一双向螺纹杆的外表面螺纹转动连接有第二螺纹块，所述第二螺纹块的顶部固定连接有第二安装架。本实用新型中，在使用时，通过设置两组电机分别驱动两个砂轮，对异形面产品的正反大面和小面进行同时磨削，针对异形面产品的小面，在较小截面的主动齿轮驱动较大截面的从动齿轮过程中，会对第一电机的转速进行控制，降低了第二砂轮对异形面产品的小面的摩擦，使异形面产品的两个面的磨削量相同，达到立式磨床的效果，减少了异形面产品的加工时间，提高异形面产品的加工效率。
The utility model provides frequency conversion and modulation grinding equipment for special-shaped surface products, which relates to the field of mechanical processing technology, including: a support frame, a first bidirectional threaded rod is rotatably connected between the inner surface walls of the support frame, a second threaded block is rotatably connected to the outer surface of the first bidirectional threaded rod, and a second mounting frame is fixedly connected to the top of the second threaded block. In the utility model, when in use, two groups of motors are set to drive two grinding wheels respectively, so that the front and back large and small surfaces of the special-shaped surface product are ground simultaneously. For the small surface of the special-shaped surface product, when the driving gear with a smaller cross-section drives the driven gear with a larger cross-section, the rotation speed of the first motor is controlled, which reduces the friction of the second grinding wheel on the small surface of the special-shaped surface product, so that the grinding amount of the two surfaces of the special-shaped surface product is the same, achieving the effect of a vertical grinder, reducing the processing time of the special-shaped surface product, and improving the processing efficiency of the special-shaped surface product.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to frequency conversion, frequency modulation and grinding equipment for special-shaped surface products.
Background
Grinding is a machining method for removing materials. Refers to a processing method for cutting off redundant materials on a workpiece by using an abrasive material and a grinding tool. Grinding is one of the widely applied material removal methods, and machining belongs to finishing (machining modes such as machining, rough machining, finishing, heat treatment and the like), and has the advantages of less machining quantity and high precision. The method is widely applied in the mechanical manufacturing industry.
In the prior art, in the grinding process of the special-shaped surface product, the two surfaces to be ground of the special-shaped workpiece are different in size, the 7475 vertical grinding machine is required to grind in the plane grinding process, but the two surfaces of the special-shaped surface product are required to grind, the grinding amount is different, the traditional vertical grinding machine can only grind one of the front surface and the back surface of the special-shaped surface product, the special-shaped surface product is turned over to continue grinding after finishing grinding, the single-shift yield is low, and the processing efficiency of the special-shaped surface product is reduced.
Disclosure of utility model
The utility model aims to solve the problems that in the prior art, the traditional grinding method cannot grind two sides simultaneously and the processing efficiency of a special-shaped surface product is reduced, and provides special-shaped surface product variable frequency and frequency modulation grinding equipment.
The special-shaped surface product variable frequency and frequency modulation grinding equipment comprises a support frame, a frequency conversion and frequency modulation grinding device, a frequency conversion assembly and a frequency conversion assembly, wherein a first bidirectional threaded rod is rotationally connected between inner surface walls of the support frame, a second threaded block is rotationally connected to the outer surface of the first bidirectional threaded rod in a threaded manner, a second mounting frame is fixedly connected to the top of the second threaded block, a second motor is fixedly connected to the front surface of the second mounting frame, the output end of the second motor rotationally penetrates through the front surface of the second mounting frame, a second grinding wheel is fixedly connected to the output end of the second motor, a fixing frame is fixedly connected to the center of the top of the support frame, a second bidirectional threaded rod is rotationally connected between inner surface walls of the fixing frame, clamping blocks are symmetrically arranged on the outer surfaces of the second bidirectional threaded rod, the inner surfaces of the two clamping blocks are rotationally connected with the outer surface of the second bidirectional threaded rod in a threaded manner, and the frequency conversion assembly is arranged on the outer surface of the first bidirectional threaded rod and comprises a first mounting frame and a driving belt.
Preferably, the bottom of first mounting bracket is high to be connected with first screw thread piece, the internal surface of first screw thread piece is kept away from the one side position screw thread rotation connection of second screw thread piece with the surface of first two-way threaded rod, first screw thread piece and second screw thread piece are the symmetry setting.
Preferably, the rear surface of the first mounting frame is fixedly connected with a first motor, the output end of the first motor rotates to penetrate through the rear surface of the first mounting frame, and the output end of the first motor is fixedly connected with a driving gear.
Preferably, the front surface fixedly connected with mounting panel of first mounting bracket, the interior table wall of mounting panel rotates and is connected with the second pivot, the rear end face fixedly connected with driven gear of second pivot, driven gear's surface and driving gear's surface meshing rotate to be connected, the surface fixedly connected with second belt pulley of second pivot.
Preferably, the position of the inner surface wall of the mounting plate far away from the second rotating shaft is rotationally connected with a first rotating shaft, the front end face of the first rotating shaft is fixedly connected with a first grinding wheel, the outer surface of the first rotating shaft is fixedly connected with a first belt pulley, and the first belt pulley and the second belt pulley are in transmission connection through a transmission belt.
Preferably, a sliding rod is fixedly connected between the inner surface walls of the fixing frame, and the outer surface of the sliding rod is in sliding connection with the inner surface of the clamping block.
Preferably, the outer surface of the first thread block is in sliding connection with the inner surface wall of the support frame, and the outer surface of the second thread block is in sliding connection with the inner surface wall of the support frame.
Preferably, the outer surface of the mounting plate is fixedly connected with a guard plate, and the guard plate is positioned above the driving gear and the driven gear.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. In the utility model, when the special-shaped surface grinding machine is used, the two grinding wheels are respectively driven by the two groups of motors, so that the front and back large surfaces and the small surfaces of the special-shaped surface product are simultaneously ground, the rotating speed of the first motor can be controlled in the process that the driving gear with a smaller section drives the driven gear with a larger section aiming at the small surface of the special-shaped surface product, the friction of the second grinding wheel on the small surface of the special-shaped surface product is reduced, the grinding quantity of the two surfaces of the special-shaped surface product is the same, the effect of the vertical grinding machine is achieved, the processing time of the special-shaped surface product is reduced, and the processing efficiency of the special-shaped surface product is improved.
2. In the utility model, when in use, the guard board is arranged on the outer surface of the mounting plate and is positioned above the driving gear and the driven gear, so that the protection effect is realized, personnel are prevented from being injured due to the fact that the personnel touch the meshed gear sets by mistake, and the protection effect of the frequency conversion frequency modulation grinding equipment for the special-shaped surface products is improved.
Drawings
FIG. 1 is a perspective view of a variable frequency and frequency modulation grinding device for a special-shaped surface product;
FIG. 2 is a schematic diagram of a frequency conversion assembly of a frequency conversion frequency modulation grinding device for special-shaped surface products;
FIG. 3 is a schematic diagram of a driven gear structure of the variable frequency and frequency modulation grinding device for the special-shaped surface product;
FIG. 4 is a schematic diagram of a part of the frequency conversion frequency modulation grinding equipment for the special-shaped surface product;
Fig. 5 is a schematic diagram of a second thread block structure of the variable frequency and frequency modulation grinding device for the special-shaped surface product.
The legend is 1, a support frame, 2, a variable frequency assembly, 201, a first mounting frame, 202, a first thread block, 203, a first motor, 205, a driving gear, 206, a mounting plate, 207, a first rotating shaft, 208, a first belt pulley, 209, a driving belt, 210, a second belt pulley, 211, a first grinding wheel, 212, a driven gear, 213, a guard plate, 214, a second rotating shaft, 3, a second mounting frame, 4, a second motor, 5, a second grinding wheel, 6, a second thread block, 7, a first bidirectional threaded rod, 8, a mounting frame, 9, a second bidirectional threaded rod, 10, a sliding rod, 11 and a clamping block.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
1, As shown in fig. 1-5, the utility model provides a special-shaped surface product variable frequency and frequency modulation grinding device, which comprises a support frame 1, wherein a first bidirectional threaded rod 7 is rotationally connected between inner surface walls of the support frame 1, a second threaded block 6 is rotationally connected to the outer surface of the first bidirectional threaded rod 7 in a threaded manner, a second mounting frame 3 is fixedly connected to the top of the second threaded block 6, a second motor 4 is fixedly connected to the front surface of the second mounting frame 3, the output end of the second motor 4 rotationally penetrates through the front surface of the second mounting frame 3, a second grinding wheel 5 is fixedly connected to the output end of the second motor 4, a fixing frame 8 is fixedly connected to the top center of the support frame 1, a second bidirectional threaded rod 9 is rotationally connected between inner surface walls of the fixing frame 8, clamping blocks 11 are symmetrically arranged on the outer surfaces of the second bidirectional threaded rod 9, and the inner surfaces of the two clamping blocks 11 are rotationally connected with the outer surfaces of the second bidirectional threaded rod 9 in a threaded manner; the variable frequency component 2, the variable frequency component 2 is arranged on the outer surface of the first bidirectional threaded rod 7, the variable frequency component 2 comprises a first mounting frame 201 and a driving belt 209, the bottom of the first mounting frame 201 is highly connected with a first thread block 202, the inner surface of the first thread block 202 is in threaded rotary connection with one side position, far away from the second thread block 6, of the outer surface of the first bidirectional threaded rod 7, the first thread block 202 and the second thread block 6 are symmetrically arranged, the rear surface of the first mounting frame 201 is fixedly connected with a first motor 203, the output end of the first motor 203 rotates to penetrate through the rear surface of the first mounting frame 201, the output end of the first motor 203 is fixedly connected with a driving gear 205, the front surface of the first mounting frame 201 is fixedly connected with a mounting plate 206, the inner surface wall of the mounting plate 206 is rotationally connected with a second rotating shaft 214, the rear end face fixedly connected with driven gear 212 of second pivot 214, the surface of driven gear 212 meshes with the surface of driving gear 205 and rotates to be connected, the surface fixedly connected with second belt pulley 210 of second pivot 214, the position that the interior surface wall of mounting panel 206 kept away from second pivot 214 rotates to be connected with first pivot 207, the preceding terminal surface fixedly connected with first emery wheel 211 of first pivot 207, the surface fixedly connected with first belt pulley 208 of first pivot 207, first belt pulley 208 and second belt pulley 210 pass through driving belt 209 transmission and are connected, fixedly connected with slide bar 10 between the interior surface wall of mount 8, the surface of slide bar 10 and the interior surface sliding connection of grip block 11.
The whole embodiment 1 achieves the effects that when grinding a special-shaped surface product, firstly, a handle arranged on one side of a second bidirectional threaded rod 9 is held and rotated positively, two clamping blocks 11 move towards each other along the outer surface of a sliding rod 10 at the inner side of a fixing frame 8 to clamp and fix the special-shaped surface product, the big surface of the special-shaped surface product faces a second grinding wheel 5, the small surface of the special-shaped surface product is positioned on a first grinding wheel 211, the handle arranged on the front end surface of the first bidirectional threaded rod 7 is held and rotated positively, a first thread block 202 and a second thread block 6 respectively drive a first mounting frame 201 and a second mounting frame 3 to move towards each other, the first grinding wheel 211 and the second grinding wheel 5 are respectively contacted with the small surface and the big surface of the special-shaped product, a first motor 203 and a second motor 4 are synchronously started, the output end of the second motor 4 drives the second grinding wheel 5 to grind the big surface of the special-shaped surface product, the output end of the first motor 203 drives the driving gear 205 to rotate the driven gear 212 in a meshed manner, the driving gear 205 has a smaller section than the driven gear 212, the function of frequency conversion, frequency modulation and speed reduction is realized on the motor, the driven gear 212 drives the second rotating shaft 214 to rotate in the mounting plate 206, the second belt pulley 210 synchronously rotates, the first belt pulley 208 is driven by the driving belt 209, the first rotating shaft 207 rotates in the mounting plate 206, the first grinding wheel 211 is driven to rotate the small surface of the special-shaped surface product, the rotating speed of the first grinding wheel 211 is slower than that of the first grinding wheel 5, the two grinding wheels are prevented from influencing the processing quality due to different grinding amounts of the special-shaped surface product under the same rotating speed, the two grinding wheels are respectively driven by the two sets of motors to grind the front and back large surface and the small surface of the special-shaped surface product simultaneously, and the small surface of the special-shaped surface product is aimed at the small surface of the special-shaped surface product, in the process of driving the driven gear 212 with the larger section by the driving gear 205 with the smaller section, the rotating speed of the first motor 203 is controlled, the friction of the second grinding wheel 211 to the small surface of the special-shaped surface product is reduced, the grinding amounts of the two surfaces of the special-shaped surface product are the same, the effect of the vertical grinding machine is achieved, the processing time of the special-shaped surface product is shortened, and the processing efficiency of the special-shaped surface product is improved.
In embodiment 2, as shown in fig. 1-5, the outer surface of the first screw block 202 is slidably connected to the inner surface wall of the support frame 1, the outer surface of the second screw block 6 is slidably connected to the inner surface wall of the support frame 1, the outer surface of the mounting plate 206 is fixedly connected to the guard plate 213, and the guard plate 213 is located above the driving gear 205 and the driven gear 212.
The effect that its whole embodiment 2 reached is, when using, first screw thread piece 202 and second screw thread piece 6 are when opposite direction or opposite movement, all slide with the inner wall of support frame 1, play spacing effect, prevent that two emery wheel positions from taking place the skew, through set up backplate 213 at the surface of mounting panel 206, backplate 213 is located the top of driving gear 205 and driven gear 212, play the effect of protection, prevent personnel from touching the gear train of meshing by mistake, lead to personnel to receive the injury, the protection effect of special-shaped face product frequency conversion frequency modulation grinding equipment has been improved.
Working principle: when grinding the special-shaped surface product, firstly, the handle arranged at one side of the second bidirectional threaded rod 9 is held and rotated in the forward direction, the two clamping blocks 11 move towards each other along the outer surface of the sliding rod 10 at the inner side of the fixing frame 8, the special-shaped surface product is clamped and fixed, the large surface of the special-shaped surface product faces the second grinding wheel 5, the small surface of the special-shaped surface product is positioned at the first grinding wheel 211, the handle arranged at the front end surface of the first bidirectional threaded rod 7 is held and rotated in the forward direction, the first thread block 202 and the second thread block 6 respectively drive the first mounting frame 201 and the second mounting frame 3 to move towards each other, the first grinding wheel 211 and the second grinding wheel 5 are respectively contacted with the small surface and the large surface of the special-shaped product, the first motor 203 and the second motor 4 are synchronously started, the output end of the second motor 4 drives the second grinding wheel 5 to grind the large surface of the special-shaped surface product, the output end of the first motor 203 drives the driving gear 205 to rotate in a meshed manner, compared with the driven gear 212 with smaller section, the driving gear 205 plays a role in carrying out variable frequency, frequency and speed reduction on the motor, the driven gear 212 drives the second rotating shaft 214 to rotate in the mounting plate 206, so that the second belt pulley 210 synchronously rotates and drives the first belt pulley 208 through the driving belt 209, the first rotating shaft 207 rotates in the mounting plate 206 and drives the first grinding wheel 211 to rotate the small surface of the special-shaped surface product, so that the rotating speed of the first grinding wheel 211 is slower than that of the first grinding wheel 5, the situation that the grinding amounts of the two grinding wheels to the special-shaped surface product are different under the same rotating speed to influence the processing quality is avoided, the two grinding wheels are respectively driven by the two sets of motors to simultaneously grind the positive and negative large surfaces and the small surface of the special-shaped surface product, in the process that the driving gear 205 with a smaller section drives the driven gear 212 with a larger section, the rotating speed of the first motor 203 is controlled, the friction of the second grinding wheel 211 to the small surface of the special-shaped surface product is reduced, the grinding amounts of the two surfaces of the special-shaped surface product are the same, the effect of the vertical grinding machine is achieved, the processing time of the special-shaped surface product is reduced, the processing efficiency of the special-shaped surface product is improved, the first thread block 202 and the second thread block 6 slide with the inner wall of the support frame 1 when moving in opposite directions or in opposite directions, the limiting effect is achieved, the two grinding wheel positions are prevented from being deviated, the guard plate 213 is arranged on the outer surface of the mounting plate 206 and is positioned above the driving gear 205 and the driven gear 212, the protecting effect is achieved, personnel are prevented from touching the meshed gear set by mistake, the personnel are injured, and the protecting effect of the special-shaped surface product variable frequency and frequency modulation grinding equipment is improved.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model will still fall within the protection scope of the technical solution of the present utility model.
Claims (8)
1. Frequency conversion frequency modulation grinding equipment of dysmorphism face product, its characterized in that includes:
The device comprises a support frame (1), wherein a first bidirectional threaded rod (7) is rotationally connected between inner surface walls of the support frame (1), a second threaded block (6) is rotationally connected to the outer surface of the first bidirectional threaded rod (7), a second mounting frame (3) is fixedly connected to the top of the second threaded block (6), a second motor (4) is fixedly connected to the front surface of the second mounting frame (3), the output end of the second motor (4) rotationally penetrates through the front surface of the second mounting frame (3), a second grinding wheel (5) is fixedly connected to the output end of the second motor (4), a fixing frame (8) is fixedly connected to the center of the top of the support frame (1), a second bidirectional threaded rod (9) is rotationally connected between the inner surface of the fixing frame (8), clamping blocks (11) are symmetrically arranged on the outer surfaces of the second bidirectional threaded rod (9), and the inner surfaces of the two clamping blocks (11) are rotationally connected with the outer surface of the second bidirectional threaded rod (9).
The variable frequency assembly (2), variable frequency assembly (2) set up the surface at first two-way threaded rod (7), variable frequency assembly (2) include first mounting bracket (201) and driving belt (209).
2. The variable frequency and frequency grinding equipment for special-shaped surface products according to claim 1, wherein the bottom of the first mounting frame (201) is connected with a first thread block (202), the inner surface of the first thread block (202) is in threaded rotation connection with one side, far away from the second thread block (6), of the outer surface of the first bidirectional threaded rod (7), and the first thread block (202) and the second thread block (6) are symmetrically arranged.
3. The variable frequency and frequency grinding equipment for the special-shaped surface product according to claim 2, wherein the rear surface of the first mounting frame (201) is fixedly connected with a first motor (203), the output end of the first motor (203) rotates to penetrate through the rear surface of the first mounting frame (201), and the output end of the first motor (203) is fixedly connected with a driving gear (205).
4. The variable frequency and frequency grinding equipment for special-shaped surface products according to claim 3, wherein the front surface of the first mounting frame (201) is fixedly connected with a mounting plate (206), the inner surface wall of the mounting plate (206) is rotationally connected with a second rotating shaft (214), the rear end surface of the second rotating shaft (214) is fixedly connected with a driven gear (212), the outer surface of the driven gear (212) is rotationally connected with the outer surface of the driving gear (205) in a meshed manner, and the outer surface of the second rotating shaft (214) is fixedly connected with a second belt pulley (210).
5. The variable frequency and frequency grinding equipment for special-shaped surface products according to claim 4, wherein the position, away from the second rotating shaft (214), of the inner surface wall of the mounting plate (206) is rotationally connected with a first rotating shaft (207), the front end surface of the first rotating shaft (207) is fixedly connected with a first grinding wheel (211), the outer surface of the first rotating shaft (207) is fixedly connected with a first belt pulley (208), and the first belt pulley (208) and the second belt pulley (210) are in transmission connection through a transmission belt (209).
6. The variable frequency and frequency modulation grinding equipment for the special-shaped surface products according to claim 5 is characterized in that a sliding rod (10) is fixedly connected between the inner surface walls of the fixing frame (8), and the outer surface of the sliding rod (10) is in sliding connection with the inner surface of the clamping block (11).
7. The variable frequency and frequency grinding equipment for special-shaped surface products according to claim 6, wherein the outer surface of the first threaded block (202) is in sliding connection with the inner surface wall of the support frame (1), and the outer surface of the second threaded block (6) is in sliding connection with the inner surface wall of the support frame (1).
8. The variable frequency and frequency grinding equipment for special-shaped surface products according to claim 7, wherein a guard plate (213) is fixedly connected to the outer surface of the mounting plate (206), and the guard plate (213) is located above the driving gear (205) and the driven gear (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420652702.7U CN222134523U (en) | 2024-04-01 | 2024-04-01 | Frequency conversion and modulation grinding equipment for special-shaped surface products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420652702.7U CN222134523U (en) | 2024-04-01 | 2024-04-01 | Frequency conversion and modulation grinding equipment for special-shaped surface products |
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| Publication Number | Publication Date |
|---|---|
| CN222134523U true CN222134523U (en) | 2024-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420652702.7U Active CN222134523U (en) | 2024-04-01 | 2024-04-01 | Frequency conversion and modulation grinding equipment for special-shaped surface products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222134523U (en) |
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- 2024-04-01 CN CN202420652702.7U patent/CN222134523U/en active Active
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