CN215700613U - Three-face integrated grinding machine special for grinding linear rail - Google Patents
Three-face integrated grinding machine special for grinding linear rail Download PDFInfo
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- CN215700613U CN215700613U CN202121925112.XU CN202121925112U CN215700613U CN 215700613 U CN215700613 U CN 215700613U CN 202121925112 U CN202121925112 U CN 202121925112U CN 215700613 U CN215700613 U CN 215700613U
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Abstract
The utility model provides a three-face integrated grinding machine special for grinding a linear rail, a machine tool, a rail mechanism and a top surface grinding mechanism, wherein the rail mechanism and the top surface grinding mechanism are arranged on the machine tool, and the three-face integrated grinding machine is characterized in that: the side grinding mechanism is also included; the top surface grinding mechanism and the side grinding mechanism are distributed on one side of the machine tool in the left-right direction; the track mechanism comprises a sliding device and a track X-axis driving device; the track X-axis driving device is arranged on the machine tool, and the power output end of the track X-axis driving device is connected with the sliding device; the side grinding mechanism comprises a first support frame, two groups of side grinding Y-axis driving devices and two groups of side grinding wheel devices; the two groups of side grinding wheel devices are distributed in the front and back direction and are respectively arranged on the first support frame through two groups of side grinding Y-axis driving devices; the top surface grinding mechanism and the side grinding mechanism are arranged, so that the top surface and two side surfaces of the workpiece can be simultaneously ground and synchronously processed, and the processing efficiency of the workpiece and errors caused by disassembly are improved.
Description
Technical Field
The utility model relates to the technical field of processing grinding machines, in particular to a grinding machine special for grinding a linear rail by three-surface integrated forming.
Background
The linear guide rail is also called linear rail, slide rail, linear guide rail and linear slide rail, is used in high-precision or high-speed linear reciprocating motion occasions, can bear certain torque, and can realize high-precision linear motion under the condition of high load.
For the requirement of high-precision guiding characteristics of the linear rail, the surface of the linear rail needs to be ground and finished after the linear rail is machined, so that the guiding precision of the linear rail is ensured. The existing linear rail machining grinding machine is used for machining the surface of a linear rail, the linear rail is required to be disassembled to grind and finish the top surface and the side edge of the linear rail step by step, and the side surface and the top surface cannot be ground and formed once after a workpiece is positioned, so that the linear rail machining efficiency is low, and meanwhile, the linear rail disassembly machining can also cause errors in machining, and therefore the improvement is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a grinding machine special for grinding a linear rail by three-side integrated forming, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a three-face integrated grinding machine special for grinding a linear rail comprises a machine tool, a rail mechanism and a top face grinding mechanism, wherein the rail mechanism and the top face grinding mechanism are installed on the machine tool; the side grinding mechanism is also included; the top surface grinding mechanism and the side grinding mechanism are distributed on one side of the machine tool in the left-right direction; the track mechanism comprises a sliding device and a track X-axis driving device; the track X-axis driving device is arranged on the machine tool, and the power output end of the track X-axis driving device is connected with the sliding device; the side grinding mechanism comprises a first support frame, two groups of side grinding Y-axis driving devices and two groups of side grinding wheel devices; the two groups of side grinding wheel devices are distributed in the front and back direction and are respectively installed on the first support frame through the two groups of side grinding Y-axis driving devices.
Further to the present invention, the sliding device includes a sliding plate and a wire rail base; the line rail seat is arranged on the sliding plate; the sliding plate is connected with the power output end of the track X driving device.
For further description of the present invention, the sliding device further comprises a grinding wheel assembly; the grinding wheel trimming component comprises a first driving device, a top surface grinding pen and a side grinding wheel, and the first driving device is arranged on the sliding plate; the side grinding wheel is arranged at the tail end of the line rail seat and is connected with the power output end of the first driving device; the top surface sanding pen is arranged at the tail end of the sliding plate and is used for dressing a top surface grinding wheel.
For further description of the utility model, the two sets of side grinding wheel units are identical; the side grinding wheel device comprises a first mounting bracket, a side grinding Z-axis driving device, a second driving device, a side grinding wheel and a sliding seat; the first mounting bracket is mounted on the first support frame through a sliding seat; the side grinding Z-axis driving device is installed on the first support frame, and a power output end of the side grinding Z-axis driving device is connected with the first installation support frame; the second driving device is arranged in front of and behind the first mounting bracket, and the power output end of the second driving device is connected with the side grinding wheel.
Further describing the present invention, the top surface grinding mechanism includes a second support assembly and a top surface grinding wheel unit; the top surface grinding wheel device is arranged on the second support component; the second supporting assembly comprises a second mounting bracket, a grinding top surface Z-axis driving device and a sliding bracket; the second mounting bracket is arranged on one side of the machine tool; the grinding top surface Z-axis driving device is arranged on the second mounting bracket; and the sliding support is connected with a power output end of the grinding top surface Z-axis driving device.
The utility model is further described, the top surface grinding wheel device comprises a mounting frame, a top surface grinding wheel, a third driving device and a top surface grinding Y-axis lead screw driving device; the mounting rack is slidably mounted on the sliding support through a sliding rail pair; the sliding bracket is provided with a screw rod seat; the top surface grinding Y-axis screw rod driving device is installed on the installation frame, and a power output end is connected with the screw rod seat; the third driving device is installed on the mounting frame, and the power output end of the third driving device is connected with the top surface grinding wheel.
The utility model is further described, and a meter positioning device for positioning the line rail is arranged on the flange of the top surface grinding wheel.
The utility model is further described as comprising a grating ruler sensor; and grating ruler inductors are respectively arranged on the side grinding mechanism and the top surface grinding mechanism.
The utility model has the beneficial effects that:
according to the utility model, the side grinding mechanism, the top surface grinding mechanism and the grating ruler sensor are arranged on the grinding machine at the same time, the side grinding mechanism can finish the front side and the rear side of the linear rail, the top surface grinding mechanism can finish the top surface of the linear rail, the linear rail is placed on the linear rail seat, the sliding plate is driven by the rail X driving device to move left and right, the moving positions of the top surface grinding mechanism and the side grinding mechanism of the grating ruler sensor are fed back to the control system in an induction manner, and the control system controls the side grinding mechanism and the top surface grinding mechanism to simultaneously grind and finish the two sides and the top surface of the linear rail, so that the machining efficiency is improved, and errors caused by the need of dismounting step-by-step machining are avoided.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an overall elevational view of the present invention;
FIG. 3 is an overall left side view of the present invention;
FIG. 4 is an overall top view of the present invention;
FIG. 5 is a structural view of the track mechanism of the present invention;
FIG. 6 is a schematic view of the first support bracket and the side grinding Y-axis drive of the present invention;
FIG. 7 is a block diagram of the slide mount of the present invention;
FIG. 8 is a structural view of a side grinding wheel unit of the present invention;
FIG. 9 is a structural view of a top surface grinding wheel unit of the present invention;
FIG. 10 is a structural view of a second support assembly of the present invention;
fig. 11 is a front view of a second support assembly of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1, 5, 6, 7 and 8, a grinding machine specially used for grinding a linear rail by three-side integrated molding comprises a machine tool 1, and a rail mechanism 2 and a top surface grinding mechanism 3 which are arranged on the machine tool 1; a side grinding mechanism 4 is also included; the track mechanism 2 comprises a sliding device 21 and a track X-axis driving device 22; the track X-axis driving device 21 is arranged on the machine tool 1, and the power output end of the track X-axis driving device is connected with the sliding device 21; the sliding device 21 includes a sliding plate 211 and a wire rail base 212; the wire rail seat 212 is provided on the sliding plate 211; the sliding plate 211 is connected with the power output end of the track X driving device 22; the wire rail mount 212 includes a magnetic stage mount 2122 and a magnetic stage 2121; the magnetic table base 2122 is provided on the sliding plate 211; the magnetic table 2121 is arranged on the magnetic table base 2122 and used for placing a wire track; the magnetic table 2121 has magnetism, can adsorb the line rail, enables the line rail to be stably adsorbed on the magnetic table, and can also perform positioning function on the line rail; the rail seat 211 and the sliding plate 212 are arranged into a non-integrated structure, so that the adjustment can be conveniently carried out on linear rail workpieces with different heights, and the adjustment can be adapted to different linear rail materials; the track X driving device 21 is driven by an oil cylinder, so that the transmission is stable, the operation is labor-saving, the reaction is fast, and the track X driving device can be started at a high speed and is frequently reversed; the sliding device 21 further comprises a grinding wheel trimming assembly 213; the grinding wheel assembly 213 comprises a first driving device 2131, a top surface grinding pen 2133 and a side grinding wheel 2132, wherein the first driving device 2131 is arranged on the sliding plate 211; the side grinding wheel 2132 is arranged at the tail end of the line rail seat 212 and is connected with the power output end of the first driving device 2131; the top surface sanding pen 2133 is arranged at the tail end of the sliding plate 211 and is used for dressing a top surface grinding wheel; the top surface grinding mechanism 3 and the side grinding mechanism 4 are distributed on one side of the machine tool 1 in a left-right mode; the side grinding mechanism 4 comprises a first support frame 41, two groups of side grinding Y-axis driving devices 42 and two groups of side grinding wheel devices 43; the two groups of side grinding wheel devices 43 are distributed in the front and back direction and are respectively arranged on the first support frame 41 through two groups of side grinding Y-axis driving devices 42; the two groups of side grinding wheel devices 43 are the same; the side grinding wheel unit 43 includes a first mounting bracket 431, a side grinding Z-axis driving unit 432, a second driving unit 433, a side grinding wheel 434, and a sliding seat 435; the first mounting bracket 431 is mounted on the first support frame 41 through a sliding seat 435; the side grinding Z-axis driving device 432 is installed on the first support frame 41, and the power output end of the side grinding Z-axis driving device is connected with the first installation support frame 431; the second driving device 433 is arranged in front of and behind the first mounting bracket 431, and the power output end of the second driving device is connected with the side grinding wheel 434; the sliding seat 435 is designed into a 7-shaped structure, the 7-shaped structure enables the sliding seat 435 to be mounted more conveniently, the sliding seat 435 is further provided with a plurality of grooves and through holes, the whole sliding seat 435 is lighter and more convenient, and the grinding Y-axis driving device 42 can drive the sliding seat 435 to move back and forth more stably and smoothly; the side grinding Z-axis driving device 432 has a braking function, and can prevent the side grinding Z-axis driving device 432 from further continuously driving the first mounting bracket 431 to move downwards when the power is off, so that equipment and a wire rail are damaged; before the device works, the track X driving device 22 drives the sliding device 21 to move to a position corresponding to the side grinding mechanism 4, the side grinding wheel 434 moves to a position corresponding to the grinding wheel assembly 213 through the linkage of the side grinding Y-axis driving device 42 and the side grinding Z-axis driving device 432, the first driving device 2131 drives the side grinding wheel 2132 to rotate, and the second driving device 433 drives the side grinding wheel 434 to rotate; the side grinding Y-axis drive unit 42 drives the side grinding wheel 433 to feed left and right, and the side dresser 2132 dresses the side grinding wheel 433 and also dresses the top grinding mechanism 3 with the top dresser 2133.
As shown in fig. 1, 9, 10 and 11, the top surface grinding mechanism 3 includes a second support assembly 31 and a top surface grinding wheel unit 32; the top surface grinding wheel device 32 is arranged on the second supporting component 31; the second supporting assembly 31 comprises a second mounting bracket 311, a grinding top surface Z-axis driving device 312 and a sliding bracket 313; the second mounting bracket 311 is provided on one side of the machine tool 1; a grinding top surface Z-axis driving device 312 is arranged on the second mounting bracket 311; the sliding support 313 is connected with the power output end of the grinding top surface Z-axis driving device 312; the top surface grinding wheel device 32 comprises a mounting frame 321, a top surface grinding wheel 322, a third driving device 323 and a top surface grinding Y-axis lead screw driving device 324; the mounting frame 321 is slidably mounted on the sliding bracket 313 through a sliding rail pair; the sliding bracket 313 is provided with a screw rod seat 3131; the top grinding Y-axis lead screw driving device 324 is installed on the mounting frame 324, and the power output end is connected with the lead screw seat 3131; the top surface grinding Y-axis screw driving device 324 comprises a driving motor 3241 and a screw rod 3242, the driving motor is arranged on the mounting frame 321, the screw rod 3242 is arranged on a screw rod seat 3131, and the driving motor 3241 moves to enable the screw rod 3242 to rotate through the screw rod seat 3131, so that the mounting frame 321 is driven to move back and forth; the third driving device 323 is arranged on the mounting frame 321, and the power output end is connected with the top surface grinding wheel 322; a flange of the top surface grinding wheel 322 is provided with a meter-making positioning device for positioning a line rail; before the device works, the linear rail is placed on the magnetic table 2121, the magnetic table 2121 adsorbs and positions the linear rail, and the top surface grinding Z-axis driving device 312 is linked with the top surface grinding Y-axis lead screw driving device 324 to move the meter positioning device to the position corresponding to the linear rail; the track X driving device 22 drives the sliding device 21 to reciprocate left and right, and after front and back offset data of the linear rail is detected by the meter-making positioning device, the linear rail is manually moved to a proper position according to the detected offset data; the grinding machine also comprises a grating ruler inductor 5, wherein the top surface grinding mechanism 3 and the side grinding mechanism 4 are respectively provided with the grating ruler inductor 5, the top surface grinding mechanism 3 and the side grinding mechanism 4 are provided with high-resolution grating rulers to form a full-closed loop structure in the process of grinding the linear rails, the feeding of each step is precisely compensated by information feedback, the feeding precision reaches 0.0005mm, the high-precision linear rails can be fully ground, ten grating ruler inductors 5 are arranged, the ten grating ruler inductors 5 are respectively arranged in two groups of side grinding Y-axis driving devices 42, two groups of side grinding Z-axis driving devices 432, a third driving device 323, the inside of the top surface grinding Y-axis lead screw driving device 324 and above and at the side of each group of sliding seats 435, the grating ruler inductors 5 are connected with an equipment control system through lines, the grating ruler inductors 5 are arranged on the driving devices, the number of turns of the rotation of the driving device is sensed, so that the data of the number of turns of the rotation of the driving device is fed back to the control system, the control system controls the driving device through the number of turns fed back so as to control the movement of the top surface grinding mechanism 3 and the two groups of side grinding mechanisms 4 to enable the grinding wheel to grind the linear rail synchronously, and three surfaces of the linear rail can realize synchronous one-step forming grinding, because the two groups of side grinding mechanisms 4 are symmetrically arranged, in order to realize more accurate position feedback and more accurate synchronous grinding movement, grating ruler inductors 5 are respectively arranged above and at the side of each group of sliding seats 435, so that the position feedback of the left and right movement of the left and right groups of side grinding wheels 434 is more accurate, the top surface grinding mechanism 3 and the side grinding mechanisms 4 can realize synchronous grinding more accurately, and the position of the linear rail processing can also be fed back by the arrangement of the grating ruler inductors 5, the feeding size of the linear rail machining is accurate; when the equipment works; the top surface grinding Z-axis driving device 312 and the top surface grinding Y-axis lead screw driving device 324 are in two-axis linkage, so that the top surface grinding wheel 322 moves to a proper processing position, and the third driving device 323 drives the top surface grinding wheel 322 to rotate; the side grinding wheels 434 at the front and rear sides are moved to proper processing positions by two-axis linkage of the side grinding Y-axis driving device 42 and the side grinding Z-axis driving device 432, the track X-driving device 22 drives the sliding plate 21 to move, the linear track placed on the magnetic table 2121 moves left and right, the moving positions of the side grinding Y-axis driving device 42, the side grinding Z-axis driving device 432, the top grinding Z-axis driving device 312, the top grinding Y-axis lead screw driving device 32 and the sliding seat 435 are sensed by the grating ruler sensor 5 and fed back to the control system, the control system controls the two-axis linkage of the side grinding Y-axis driving device 42 and the side grinding Z-axis driving device 432 again, controls the two-axis linkage of the top grinding Z-axis driving device 312 and the top grinding Y-axis lead screw driving device 324 to accurately control the front and rear feeding of the side grinding wheels 434 and the up and down feeding of the top grinding wheels 322, the two sets of side grinding wheels 434 and the top grinding wheel 322 simultaneously perform three-side integrated processing on the linear rail in the left-right movement, and the linear rail is manually taken away after the processing is completed.
The working principle of the embodiment is as follows:
before the device works, the track X driving device 22 drives the sliding device 21 to move to a position corresponding to the side grinding mechanism 4, the side grinding wheel 434 moves to a position corresponding to the grinding wheel assembly 213 through the linkage of the side grinding Y-axis driving device 42 and the side grinding Z-axis driving device 432, the first driving device 2131 drives the side grinding wheel 2132 to rotate, and the second driving device 433 drives the side grinding wheel 434 to rotate; the side grinding Y-axis driving device 42 drives the side grinding wheel 433 to feed back and forth, so that the side grinding wheel 2132 trims the side grinding wheel 433, and meanwhile, the top grinding wheel 322 is also trimmed by the top trimming pen 2133; after finishing, the linear rail is placed on the magnetic table 2121, the magnetic table 2121 adsorbs and positions the linear rail, and the top surface grinding Z-axis driving device 312 is linked with the top surface grinding Y-axis lead screw driving device 324 to move the marking positioning device to the position corresponding to the linear rail; the track X driving device 22 drives the sliding device 21 to reciprocate left and right, after front and back offset data of the linear rail are detected through the meter-making positioning device, the linear rail is manually moved to a proper position according to the detected offset data, after the positioning is finished, the equipment starts to work, the top surface grinding Z-axis driving device 312 drives the sliding support 313 to move downwards, meanwhile, the top surface grinding Y-axis lead screw driving device 324 drives the top surface grinding wheel 322 to move to a proper processing position, and then the third driving device 323 drives the top surface grinding wheel to rotate 322; after the top grinding wheel 322 moves to a proper position, the side grinding Y-axis driving device 42 drives two groups of sliding seats 435 to move back and forth to a proper processing position, the side grinding Z-axis driving device 432 drives the side grinding wheel 434 to move downwards to a proper processing position, the second driving device 433 drives the side grinding wheel 432 to rotate, after the side grinding wheel 432 moves to a proper position, the track X-driving device 22 drives the sliding plate 21 to move, so that after the linear track placed on the magnetic table moves left and right, the moving positions of the side grinding Y-axis driving device 42, the side grinding Z-axis driving device 432, the top grinding Z-axis driving device 312, the top grinding Y-axis lead screw driving device 32 and the sliding seats 435 are sensed through the grating ruler sensor 5 and fed back to the control system, and the control system controls the two-axis linkage of the side grinding Y-axis driving device 42 and the side grinding Z-axis driving device 432 again, and controlling the top surface grinding Z-axis driving device 312 and the top surface grinding Y-axis screw rod driving device 324 to be in two-axis linkage, and accurately controlling the front-back feeding of the side grinding wheel 434 and the up-down feeding of the top surface grinding wheel 322, so that the two groups of side grinding wheels 434 and the top surface grinding wheel 322 simultaneously carry out three-side integrated processing on the linear rail in the left-right movement, and manually taking the linear rail away after the processing is finished.
The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are still within the technical scope of the present invention.
Claims (8)
1. The utility model provides a trilateral integrated into one piece grinds rail special purpose grinder, includes the lathe and installs track mechanism and top surface grinding mechanism on the lathe, its characterized in that: the side grinding mechanism is also included; the top surface grinding mechanism and the side grinding mechanism are distributed on one side of the machine tool in the left-right direction; the track mechanism comprises a sliding device and a track X-axis driving device; the track X-axis driving device is arranged on the machine tool, and the power output end of the track X-axis driving device is connected with the sliding device; the side grinding mechanism comprises a first support frame, two groups of side grinding Y-axis driving devices and two groups of side grinding wheel devices; the two groups of side grinding wheel devices are distributed in the front and back direction and are respectively installed on the first support frame through the two groups of side grinding Y-axis driving devices.
2. The special grinding machine for three-side integrated grinding line rail according to claim 1, characterized in that: the sliding device comprises a sliding plate and a linear rail seat; the line rail seat is arranged on the sliding plate; the sliding plate is connected with the power output end of the track X driving device.
3. The special grinding machine for three-side integrated grinding line rail according to claim 2, characterized in that: the sliding device also comprises a grinding wheel repairing component; the grinding wheel trimming component comprises a first driving device, a top surface grinding pen and a side grinding wheel, and the first driving device is arranged on the sliding plate; the side grinding wheel is arranged at the tail end of the line rail seat and is connected with the power output end of the first driving device; the top surface sanding pen is arranged at the tail end of the sliding plate and is used for dressing a top surface grinding wheel.
4. The special grinding machine for three-side integrated grinding line rail according to claim 1, characterized in that: the two groups of side grinding wheel devices are the same; the side grinding wheel device comprises a first mounting bracket, a side grinding Z-axis driving device, a second driving device, a side grinding wheel and a sliding seat; the first mounting bracket is mounted on the first support frame through a sliding seat; the side grinding Z-axis driving device is installed on the first support frame, and a power output end of the side grinding Z-axis driving device is connected with the first installation support frame; the second driving device is arranged in front of and behind the first mounting bracket, and the power output end of the second driving device is connected with the side grinding wheel.
5. The special grinding machine for three-side integrated grinding line rail according to claim 1, characterized in that: the top surface grinding mechanism comprises a second supporting component and a top surface grinding wheel device; the top surface grinding wheel device is arranged on the second support component; the second supporting assembly comprises a second mounting bracket, a grinding top surface Z-axis driving device and a sliding bracket; the second mounting bracket is arranged on one side of the machine tool; the grinding top surface Z-axis driving device is arranged on the second mounting bracket; and the sliding support is connected with a power output end of the grinding top surface Z-axis driving device.
6. The special grinding machine for three-sided integrated grinding line rail according to claim 5, characterized in that: the top surface grinding wheel device comprises a mounting frame, a top surface grinding wheel, a third driving device and a top surface grinding Y-axis lead screw driving device; the mounting rack is slidably mounted on the sliding support through a sliding rail pair; the sliding bracket is provided with a screw rod seat; the top surface grinding Y-axis screw rod driving device is installed on the installation frame, and a power output end is connected with the screw rod seat; the third driving device is installed on the mounting frame, and the power output end of the third driving device is connected with the top surface grinding wheel.
7. The special grinding machine for three-sided integrated grinding line rail according to claim 6, characterized in that: and a meter-striking positioning device for positioning the line rail is arranged on the flange of the top surface grinding wheel.
8. The special grinding machine for three-side integrated grinding line rail according to claim 1, characterized in that: the device also comprises a grating ruler sensor; and grating ruler inductors are respectively arranged on the side grinding mechanism and the top surface grinding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121925112.XU CN215700613U (en) | 2021-08-17 | 2021-08-17 | Three-face integrated grinding machine special for grinding linear rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121925112.XU CN215700613U (en) | 2021-08-17 | 2021-08-17 | Three-face integrated grinding machine special for grinding linear rail |
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| Publication Number | Publication Date |
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| CN215700613U true CN215700613U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121925112.XU Active CN215700613U (en) | 2021-08-17 | 2021-08-17 | Three-face integrated grinding machine special for grinding linear rail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458938A (en) * | 2021-08-17 | 2021-10-01 | 豪特曼智能装备信阳有限公司 | Three-face integrated grinding machine special for grinding linear rail |
| CN117549152A (en) * | 2023-12-12 | 2024-02-13 | 烟台通用机械设备制造有限公司 | A five-grinding head linear guide grinder |
-
2021
- 2021-08-17 CN CN202121925112.XU patent/CN215700613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458938A (en) * | 2021-08-17 | 2021-10-01 | 豪特曼智能装备信阳有限公司 | Three-face integrated grinding machine special for grinding linear rail |
| CN117549152A (en) * | 2023-12-12 | 2024-02-13 | 烟台通用机械设备制造有限公司 | A five-grinding head linear guide grinder |
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