CN210677199U - Gear grinding machine - Google Patents
Gear grinding machine Download PDFInfo
- Publication number
- CN210677199U CN210677199U CN201921015027.2U CN201921015027U CN210677199U CN 210677199 U CN210677199 U CN 210677199U CN 201921015027 U CN201921015027 U CN 201921015027U CN 210677199 U CN210677199 U CN 210677199U
- Authority
- CN
- China
- Prior art keywords
- box body
- rotating shaft
- axis
- shaft box
- guide rail
- 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.)
- Active
Links
Images
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model discloses a gear grinding machine, include: the side wall of the machine body is provided with an X-axis guide rail; the second rotating shaft box body is slidably arranged on the X-axis guide rail, a rotating shaft B shaft is arranged in the second rotating shaft box body, a first rotating shaft box body is arranged at the tail end of the rotating shaft B shaft, a workpiece main shaft A shaft is arranged in the first rotating shaft box body, and a workpiece is arranged at the end part of the workpiece main shaft A shaft; the sliding table is movably arranged on the machine body and is positioned above the second rotating shaft box body, a third rotating shaft box body is arranged on the sliding table, a grinding wheel spindle C shaft is arranged in the third rotating shaft box body, and a grinding wheel is arranged at the lower end of the grinding wheel spindle C shaft; and the cooling oil tanks are arranged below the first rotating shaft box body along the X-axis direction. The utility model discloses a setting is not piled up than traditional structure to three removal axles, and consequently the dismouting is simple and convenient, both can improve production efficiency, also convenient maintenance, and weight distribution is more reasonable, can not seem heavy foot light, and then also can alleviate the counter weight of fuselage, reduces equipment volume.
Description
Technical Field
The utility model belongs to the technical field of gear machining equipment, concretely relates to gear grinding machine.
Background
The gear grinding machine is provided with six transmission mechanisms in order to realize the processing of the gear teeth of the spiral bevel gear, and specifically comprises 3 rotating shafts and 3 moving shafts, wherein the moving shafts comprise X, Y, Z shafts for realizing the moving and adjusting of a grinding wheel and a workpiece space, and the rotating shafts comprise workpiece rotating shafts, grinding wheel rotating shafts and swing shafts for adjusting included angles between the workpiece rotating shafts and the grinding wheel rotating shafts. In addition, the gear grinding machine also comprises a grinding wheel dresser, so the gear grinding machine is also called as a seven-shaft structure.
At present, gear grinding machine on the market mainly includes the fuselage and is located the emery wheel case of fuselage front end, the work piece case, wherein be provided with gliding slide around can on the fuselage, the slide upper end is provided with the slip table that can the horizontal slip, the emery wheel case can be installed in the preceding terminal surface of slip table with sliding from top to bottom, thereby form X, Y, Z axles, set up the emery wheel pivot in the emery wheel case, and the rotatable installation of work piece case is on the fuselage and is located the below of emery wheel case, set up the work piece pivot in the work piece incasement, thereby form 3 rotation axes. The guide rail for realizing the front-back sliding of the sliding seat in the structure is arranged in the machine body, the disassembly and assembly difficulty is high, the maintenance is difficult, the whole structural design layout is unreasonable, and the machine is heavy and light.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a gear grinding machine that the dismouting is simple and convenient, rationally distributed.
The utility model provides a technical scheme that its technical problem adopted is:
a gear grinding machine comprising:
the side wall of the machine body is provided with an X-axis guide rail extending along the horizontal axis to the X-axis direction;
the second rotating shaft box body is slidably arranged on the X-axis guide rail, a rotating shaft B shaft which is horizontal and vertical to the X-axis guide rail is arranged in the second rotating shaft box body, the tail end of the rotating shaft B shaft extends to the outer side of the second rotating shaft box body and is fixedly provided with a first rotating shaft box body, a workpiece spindle A shaft which is vertical to the rotating shaft B shaft is arranged in the first rotating shaft box body, and a workpiece is arranged at the end part of the workpiece spindle A shaft;
the sliding table is movably arranged on the machine body along a horizontal axis to a Y axis and is positioned above the second rotary shaft box body, a third rotary shaft box body is arranged on one side, close to the first rotary shaft box body, of the sliding table, the third rotary shaft box body is movably arranged on the sliding table along a vertical axis to a Z axis, a grinding wheel main shaft C axis is arranged in the third rotary shaft box body, the grinding wheel main shaft C axis is parallel to the vertical axis to the Z axis, and a grinding wheel is arranged at the lower end of the grinding wheel main shaft C axis;
and the cooling oil tanks are arranged below the first rotating shaft box body along the X-axis direction.
Preferably, the X-axis guide rails are arranged in two groups and distributed up and down, the machine body is provided with an installation cavity between the two groups of X-axis guide rails, the second rotating shaft box body comprises a box body and installation parts arranged at the upper end and the lower end of the box body, and the installation parts are slidably installed on the X-axis guide rails so that the box body is accommodated in the installation cavity.
Preferably, the machine body is provided with a Y-axis guide rail extending along the Y-axis direction, and the sliding table is mounted on the Y-axis guide rail; the sliding table is provided with a Z-axis guide rail extending along the Z-axis direction, and the third rotating shaft box body is installed on the Z-axis guide rail.
Preferably, the method further comprises the following steps:
the first driving mechanism is arranged on the machine body and is in transmission connection with the second rotating shaft box body so as to control the second rotating shaft box body to move on the X-axis guide rail;
the second driving mechanism is arranged on the machine body and is in transmission connection with the sliding table so as to control the sliding table to move on the Y-axis guide rail;
and the third driving mechanism is arranged on the side wall of one side, close to the first rotating shaft box body, of the sliding table and is in transmission connection with the third rotating shaft box body so as to control the third rotating shaft box body to move on the Z-axis guide rail.
Preferably, the first driving mechanism, the second driving mechanism and the third driving mechanism are a motor screw mechanism, a linear motor, an air cylinder or an oil cylinder.
Preferably, a grinding wheel dresser is arranged on the first rotating shaft box body.
The utility model has the advantages that:
firstly, the three moving shafts are not stacked compared with the traditional structure, so that the three-shaft three-axis moving mechanism is simple and convenient to disassemble and assemble, can improve the production efficiency and is convenient to maintain;
secondly, the weight distribution is more reasonable, the weight is not heavy, the weight is not light, the balance weight of the machine body can be lightened, and the volume of the equipment is reduced;
thirdly, compared with the traditional structure, the whole weight of the grinding wheel part is reduced, so that the output power of the driving mechanism can be reduced, and the production cost is reduced;
fourthly, when the grinding wheel and the workpiece are adjusted, the grinding wheel and the workpiece can be synchronously carried out, and the machining efficiency is improved.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of a first view angle of the present invention;
fig. 2 is a schematic structural diagram of a second viewing angle of the present invention;
fig. 3 is a schematic structural diagram of a third viewing angle of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Example 1
Referring to fig. 1 to 3, the utility model provides a gear grinding machine, include:
the side wall of the machine body 100 is provided with an X-axis guide rail 201 extending along the horizontal axis to the X-axis direction;
the second rotating shaft box body 200 is slidably mounted on the X-axis guide rail 201, a rotating shaft B shaft which is horizontal and vertical to the X-axis guide rail 201 is arranged in the second rotating shaft box body 200, the tail end of the rotating shaft B shaft extends to the outer side of the second rotating shaft box body 200 and is fixedly provided with a first rotating shaft box body 300, a workpiece spindle A shaft which is vertical to the rotating shaft B shaft is arranged in the first rotating shaft box body 300, and a workpiece is mounted at the end part of the workpiece spindle A shaft;
the sliding table 400 is mounted on the machine body 100 in a manner of moving along a horizontal axis Y axis and is positioned above the second rotating shaft box body 200, a third rotating shaft box body 500 is arranged on one side, close to the first rotating shaft box body 300, of the sliding table 400, the third rotating shaft box body 500 is mounted on the sliding table 400 in a manner of moving along a vertical axis Z axis, a grinding wheel spindle C axis is arranged in the third rotating shaft box body 500, the grinding wheel spindle C axis is parallel to the vertical axis Z axis, and a grinding wheel is mounted at the lower end of the grinding wheel spindle C axis;
and the cooling oil tanks 600 are arranged below the first rotating shaft box body 300 along the X-axis direction.
Because three removal axles all set up in an organic whole with the emery wheel part in traditional gear grinding machine structure, and the utility model discloses in will realize that the X axle guide rail that X axle direction removed sets up in the work piece part, make the utility model provides a gear grinding machine possesses following advantage:
firstly, the three moving shafts are not stacked compared with the traditional structure, so that the three-shaft three-axis moving mechanism is simple and convenient to disassemble and assemble, can improve the production efficiency and is convenient to maintain;
secondly, the weight distribution is more reasonable, the weight is not heavy, the weight of the machine body 100 can be reduced, and the volume of the equipment is reduced;
thirdly, compared with the traditional structure, the whole weight of the grinding wheel part is reduced, so that the output power of the corresponding driving mechanism can be reduced, and the production cost is reduced;
fourthly, during adjustment, the grinding wheel and the workpiece can be synchronously carried out, which is beneficial to improving the processing efficiency;
fifthly, the cooling oil tank 600 is disposed below the first rotating shaft case 300, so that the left-handed and right-handed spiral bevel gear processing can be realized by controlling the first rotating shaft case 300 to rotate 180 degrees during processing, and simultaneously the cooling oil in the gear grinding processing can be timely collected.
As shown in fig. 1 and 2, in this embodiment, the X-axis guide rails 201 are arranged in two groups and distributed up and down, the machine body 100 is provided with an installation cavity between the two groups of X-axis guide rails 201, and the second rotating shaft box 200 includes a box body and an installation part arranged at the upper end and the lower end of the box body, and the installation part is slidably installed on the X-axis guide rails 201 so that the box body is accommodated in the installation cavity.
In order to realize the movement adjustment of the second rotating shaft box 200 along the X-axis direction, a first driving mechanism is arranged on the machine body 100, and the first driving mechanism is in transmission connection with the second rotating shaft box 200 so as to control the second rotating shaft box 200 to move on the X-axis guide rail 201. Specifically, the first driving mechanism includes an X-axis lead screw 203 and a first driving motor 202, the X-axis lead screw 203 is inserted into the installation cavity and is in threaded connection with the second rotating shaft box 200, and the first driving motor 202 is installed on the machine body 100 and is in transmission connection with the X-axis lead screw 203. As shown in the figure, a threaded hole matched with the X-axis screw rod 203 is formed in the second rotating shaft box 200, so that the X-axis screw rod 203 passes through the threaded hole, and further moves along the X-axis guide rail 201 when the X-axis screw rod 203 rotates along with the driving of the first driving motor 202. The first driving motor 202 and the X-axis lead screw 203 may be connected by a coupling, or may be provided with a belt or a belt pulley, and driven by the belt.
Further, in order to control the movement of the slide table 400, a Y-axis guide rail 401 extending in the Y-axis direction and a second driving mechanism are provided at the upper end of the body 100, and the slide table 400 is mounted on the Y-axis guide rail 401 and driven by the second driving mechanism. As shown in fig. 1-3, the Y-axis guide rails 401 are provided with two ends and located at two ends of the sliding table 400 to support the sliding table 400, the second driving mechanism includes a Y-axis lead screw 403 and a second driving motor 402, the Y-axis lead screw 403 penetrates through the machine body 100 and is located between the two Y-axis guide rails 401, meanwhile, the Y-axis lead screw 403 is in threaded connection with the sliding table 400, and the second driving motor 402 is arranged at one end of the Y-axis lead screw 403 far away from the third rotating shaft box 500 and is in transmission connection with the Y-axis lead screw 403. The Y-axis screw 403 and the second driving motor 402 may be directly connected by a coupling, or may be connected by a belt or a pulley, as in the X-axis screw 203.
As shown in fig. 1 and 2, a Z-axis guide 501 extending in the Z-axis direction is provided on a side wall of the slide table 400 on a side close to the first rotating shaft housing 300, and a third driving mechanism is provided on the slide table 400, and the third rotating shaft housing 500 is mounted on the Z-axis guide 501 and is driven by the third driving mechanism. Specifically, Z axle guide rail 501 is provided with two, third actuating mechanism includes Z axle lead screw 503 and third driving motor 502, Z axle lead screw 503 wears to locate on slip table 400 and lies in between two Z axle guide rails 501, simultaneously with third pivot axle box 500 threaded connection, third driving motor 502 sets up in the top of Z axle lead screw 503 and transmission connection Z axle lead screw 503. The same as the X-axis screw 203, the Z-axis screw 503 and the third driving motor 502 may be directly connected by a coupling, or may be connected by a belt or a pulley.
In this embodiment, the X-axis screw 203, the Y-axis screw 403, and the Z-axis screw 503 are respectively disposed at the center line positions of the two X-axis guide rails 201, the Y-axis guide rails 401, and the Z-axis guide rails 501, so that the transmission stability can be effectively ensured in the transmission process, the occurrence of the problem of serious single-side abrasion is avoided, and the service life is further prolonged. And the hidden installation of the X-axis lead screw 203, the Y-axis lead screw 403 and the Z-axis lead screw 503 can be realized by the arrangement, which is beneficial to maintaining the integrity of the appearance of the equipment. As shown in the figures, in this embodiment, concave grooves are formed on both sides of the X-axis guide rail 201, the Y-axis guide rail 401, and the Z-axis guide rail 501, and the corresponding second rotating shaft box 200, the corresponding sliding table 400, and the corresponding third rotating shaft box 500 are provided with protrusions adapted to the second rotating shaft box and the corresponding third rotating shaft box to be clamped therein, so that the anti-falling performance is achieved when the sliding-mounting is performed on the X-axis guide rail 201, the Y-axis guide rail 401, and the Z-axis guide rail 501. In addition, for the purpose of simplifying the structure in this embodiment, only two X-axis guide rails 201, two Y-axis guide rails 401, and two Z-axis guide rails 501 are provided, and obviously, other numbers of X-axis guide rails 201, two Y-axis guide rails 401, and two Z-axis guide rails 501 may be provided in the actual production process.
In addition, in this embodiment, the workpiece spindle a is provided with a workpiece clamping turntable for clamping a workpiece. The first rotating shaft box 300 is provided with a workpiece rotation driving motor for driving the workpiece spindle a to rotate, the second rotating shaft box 200 is provided with a workpiece reversing driving motor for driving the rotating shaft B to rotate, and the third rotating shaft box 500 is provided with a grinding wheel rotation driving motor for driving the grinding wheel spindle C to rotate. The workpiece rotation driving motor and the workpiece spindle A shaft, the workpiece reversing driving motor and the revolving shaft B shaft, and the grinding wheel rotation driving motor and the grinding wheel spindle C shaft can be in a motor direct connection mode, and can also be in a mode that the motor is combined with a gear or belt to realize transmission. Since such structures are common knowledge, detailed descriptions of the structures are omitted.
To sum up, the utility model provides a gear grinding machine has alleviateed the whole weight of emery wheel part than traditional structure, consequently can reduce the counter weight of fuselage 100 bottoms, and then reduces volume, weight, reduction in production cost. Wherein the second rotating shaft box 200 is installed on the side wall of the body 100, the sliding table 400 is installed on the upper end of the body 100, and the second rotating shaft box and the sliding table are not stacked compared with the traditional structure, so that the disassembly and assembly difficulty is simplified, and the maintenance is convenient. And in the process of adjusting the six-axis structure, the grinding wheel and the workpiece can be synchronously carried out, so that the production efficiency is improved.
In addition, a wheel dresser 700 is provided on the first rotating shaft housing 300. In the actual production process, the linear guide rail can be arranged in parallel to the axis A of the workpiece main shaft, and can also be arranged at a certain included angle with the axis A of the workpiece main shaft, when the linear guide rail is arranged in parallel to the axis A of the workpiece main shaft, a certain distance is required to be kept to stagger the workpiece machining area, and when the linear guide rail is arranged at a certain included angle with the axis A of the workpiece main shaft, only the first rotating shaft box body 300 needs to be rotated to a proper position when the grinding wheel is dressed. The mode through pneumatic cylinder drive is more stable, reliable, and the practicality is strong.
Example 2
The embodiment mainly uses embodiment 1, and the difference is that the first driving mechanism, the second driving mechanism and the third driving mechanism in the embodiment are arranged as a linear motor, an air cylinder or an oil cylinder, and directly control the movement of corresponding components, so that the arrangement of a screw rod is reduced, and the purpose of structural optimization is achieved.
The above embodiments are merely preferred embodiments of the present invention, and other embodiments are also possible. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.
Claims (6)
1. A gear grinding machine, comprising:
the side wall of the machine body is provided with an X-axis guide rail extending along the horizontal axis to the X-axis direction;
the second rotating shaft box body is slidably arranged on the X-axis guide rail, a rotating shaft B shaft which is horizontal and vertical to the X-axis guide rail is arranged in the second rotating shaft box body, the tail end of the rotating shaft B shaft extends to the outer side of the second rotating shaft box body and is fixedly provided with a first rotating shaft box body, a workpiece spindle A shaft which is vertical to the rotating shaft B shaft is arranged in the first rotating shaft box body, and a workpiece is arranged at the end part of the workpiece spindle A shaft;
the sliding table is movably arranged on the machine body along a horizontal axis to a Y axis and is positioned above the second rotary shaft box body, a third rotary shaft box body is arranged on one side, close to the first rotary shaft box body, of the sliding table, the third rotary shaft box body is movably arranged on the sliding table along a vertical axis to a Z axis, a grinding wheel main shaft C axis is arranged in the third rotary shaft box body, the grinding wheel main shaft C axis is parallel to the vertical axis to the Z axis, and a grinding wheel is arranged at the lower end of the grinding wheel main shaft C axis;
and the cooling oil tanks are arranged below the first rotating shaft box body along the X-axis direction.
2. The gear grinding machine according to claim 1, wherein the X-axis guide rails are arranged in two groups and distributed up and down, the machine body is provided with a mounting cavity between the two groups of X-axis guide rails, the second rotary shaft box body comprises a box body and mounting parts arranged at the upper end and the lower end of the box body, and the mounting parts are slidably mounted on the X-axis guide rails so that the box body is accommodated in the mounting cavity.
3. The gear grinding machine according to claim 2, wherein the machine body is provided with a Y-axis guide rail extending in a Y-axis direction, and the slide table is mounted on the Y-axis guide rail; the sliding table is provided with a Z-axis guide rail extending along the Z-axis direction, and the third rotating shaft box body is installed on the Z-axis guide rail.
4. A gear grinding machine according to claim 3, further comprising:
the first driving mechanism is arranged on the machine body and is in transmission connection with the second rotating shaft box body so as to control the second rotating shaft box body to move on the X-axis guide rail;
the second driving mechanism is arranged on the machine body and is in transmission connection with the sliding table so as to control the sliding table to move on the Y-axis guide rail;
and the third driving mechanism is arranged on the side wall of one side, close to the first rotating shaft box body, of the sliding table and is in transmission connection with the third rotating shaft box body so as to control the third rotating shaft box body to move on the Z-axis guide rail.
5. A gear grinding machine according to claim 4 wherein the first, second and third drive mechanisms are motor screw mechanisms or linear motors or air cylinders or oil cylinders.
6. A gear grinding machine according to any one of claims 1 to 5, wherein a dresser is provided on the first rotary shaft housing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921015027.2U CN210677199U (en) | 2019-07-01 | 2019-07-01 | Gear grinding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921015027.2U CN210677199U (en) | 2019-07-01 | 2019-07-01 | Gear grinding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN210677199U true CN210677199U (en) | 2020-06-05 |
Family
ID=70892102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201921015027.2U Active CN210677199U (en) | 2019-07-01 | 2019-07-01 | Gear grinding machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN210677199U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110340451A (en) * | 2019-07-01 | 2019-10-18 | 湖南中大创远数控装备有限公司 | Numerically controlled tooth grinding machine |
CN110340449A (en) * | 2019-07-01 | 2019-10-18 | 湖南中大创远数控装备有限公司 | A kind of gear grinding machines |
CN111730146A (en) * | 2020-07-15 | 2020-10-02 | 广东技术师范大学 | Gear grinding machine |
CN111975120A (en) * | 2020-07-29 | 2020-11-24 | 湖南中大创远数控装备有限公司 | Numerical control gear grinding machine tool |
-
2019
- 2019-07-01 CN CN201921015027.2U patent/CN210677199U/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110340451A (en) * | 2019-07-01 | 2019-10-18 | 湖南中大创远数控装备有限公司 | Numerically controlled tooth grinding machine |
CN110340449A (en) * | 2019-07-01 | 2019-10-18 | 湖南中大创远数控装备有限公司 | A kind of gear grinding machines |
CN111730146A (en) * | 2020-07-15 | 2020-10-02 | 广东技术师范大学 | Gear grinding machine |
CN111730146B (en) * | 2020-07-15 | 2024-04-09 | 广东技术师范大学 | Gear grinding machine |
CN111975120A (en) * | 2020-07-29 | 2020-11-24 | 湖南中大创远数控装备有限公司 | Numerical control gear grinding machine tool |
WO2022021579A1 (en) * | 2020-07-29 | 2022-02-03 | 湖南中大创远数控装备有限公司 | Numerical-control gear grinding machine tool |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN210677199U (en) | Gear grinding machine | |
CN106112752B (en) | Suitable for the sbrasive belt grinding center of blisk holotype face polishing processing | |
CN201086222Y (en) | Six-shaft abrasive belt grinding machine | |
CN202540054U (en) | Numerical control device | |
CN201073743Y (en) | Multi-bistrique glass edge grinding machine | |
CN209304296U (en) | A kind of five-shaft numerical control sander | |
CN210677201U (en) | Gear milling machine | |
CN104669910A (en) | Eight-head five-shaft four axis pendulum head engraving machine | |
CN215700226U (en) | Six-axis five-linkage tool grinding machine with lifting workbench | |
CN202540053U (en) | Numerical control device | |
CN2477306Y (en) | Tooth end edge-grinding and-chamfering machine for spiral bevel gear | |
CN113352196A (en) | Full-automatic multi-station six-shaft abrasive belt polishing machine | |
CN209036212U (en) | Special-shaped small precision part grinding device | |
CN202804376U (en) | Precise forming numerical control four-axis linkage inner cyclone milling machine | |
CN112571085A (en) | Gantry frame of high-speed five-axis machining center | |
CN114178960B (en) | High-precision double-sided numerically controlled grinder machine tool | |
CN210677203U (en) | Numerical control gear grinding machine | |
CN212419665U (en) | Electric spindle lathe for turning super-bright surface and mirror surface of hub | |
CN201220378Y (en) | Band grinding apparatus with B and C shafts movement | |
CN111805007A (en) | Numerical control spiral bevel gear grinding machine | |
CN207189409U (en) | A kind of burnishing device | |
CN111805008A (en) | Numerical control spiral bevel gear milling machine | |
CN113399715B (en) | Vertical and horizontal composite multi-axis strip-shaped workpiece machining center and machining method thereof | |
CN110421447A (en) | Special-shaped small precision part grinding device | |
CN221755633U (en) | Mould surface treatment equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |