CN216645300U - Device for measuring distance between bevel gear meshing pitch line intersection point and mounting surface - Google Patents
Device for measuring distance between bevel gear meshing pitch line intersection point and mounting surface Download PDFInfo
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- CN216645300U CN216645300U CN202123130837.2U CN202123130837U CN216645300U CN 216645300 U CN216645300 U CN 216645300U CN 202123130837 U CN202123130837 U CN 202123130837U CN 216645300 U CN216645300 U CN 216645300U
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Abstract
A device for measuring the distance between the intersection point of the meshing pitch lines of a bevel gear and an installation surface comprises a detection body, a positioning plate, a detection shaft, a positioning assembly and an adjusting assembly; the detection body is L-shaped and comprises a vertical positioning plate and a horizontal positioning plate which are connected; the detection shaft is vertically connected to the vertical positioning plate and is parallel to the horizontal positioning plate, and the first bevel gear is sleeved on the detection shaft; the positioning disc is connected to the horizontal positioning plate through the positioning assembly, the upper surface of the positioning disc is a positioning surface, and the second bevel gear is connected to the positioning surface of the positioning disc through the positioning assembly; the adjusting assembly is used for adjusting the second bevel gear and the first bevel gear to be in a normal meshing state. This device can obtain the nodical distance to the locating surface of meshing pitch line and with the distance of vertical locating plate to calculate the thickness of the adjustment pad of the bevel gear of horizontal direction and vertical direction, thereby can be accurate with first bevel gear and second bevel gear assembly into the box in, guarantee the meshing precision, avoid making a round trip to dismantle and cause certain damage to the precision of part.
Description
Technical Field
The utility model belongs to the technical field of machine tool manufacturing, and particularly relates to a device for measuring the distance between an intersection point of meshing pitch lines of a bevel gear and a mounting surface.
Background
With the rapid development of the machine manufacturing industry, the complexity and the precision of the machined parts are higher and higher. The requirement on the precision of machine tool machining equipment is higher and higher, and the machining of a plurality of complex high-precision parts can be met only by a five-axis turning and milling composite machining center. The turning and milling head functional component of the turning and milling composite machining center transfers motion by meshing the bevel gear in the horizontal direction and the bevel gear in the vertical direction, so that the meshing precision of the bevel gear of the turning and milling head is very critical, and the transmission precision, the rotating speed and the noise of the turning and milling head are influenced.
Generally, the box body of the five-axis turn-milling composite machining center is machined and the turn-milling head is assembled with great difficulty, the turn-milling head box body is a closed box body, the meshing state of gears cannot be observed, the existing method of assembling gears in a trial mode is adopted during meshing, the assembling strength is increased, and the precision of parts is damaged in a reciprocating mode. Therefore, the adjustment amount of the bevel gears needs to be calculated during assembly so that the two bevel gears can be precisely meshed, and during actual measurement, the intersection point of meshing pitch lines of the two bevel gears is a point which does not exist actually and is difficult to measure directly. Therefore, a device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface is needed.
Disclosure of Invention
The utility model aims to provide a device for measuring the distance between the intersection point of meshing pitch lines of a bevel gear and a mounting surface.
In order to achieve the purpose, the utility model provides a device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and an installation surface, which comprises a detection body, a positioning disc, a detection shaft, a positioning assembly and an adjusting assembly, wherein the detection body is provided with a positioning disc; the detection body is L-shaped and comprises a vertical positioning plate and a horizontal positioning plate which are connected;
the detection shaft is vertically connected to the vertical positioning plate and is parallel to the horizontal positioning plate, and the first bevel gear is sleeved on the detection shaft;
the positioning disc is connected to the horizontal positioning plate through the positioning assembly, the upper surface of the positioning disc is a positioning surface, and the second bevel gear is connected to the positioning surface of the positioning disc through the positioning assembly;
the adjusting component is used for adjusting the second bevel gear and the first bevel gear to be in a normal meshing state.
Preferably, the positioning assembly comprises a guide key, a first groove which is parallel to the axial direction of the detection shaft and has an inverted T-shaped cross section is formed in the middle of the horizontal positioning plate, and the guide key is slidably arranged in the first groove and connected to the bottom of the positioning plate.
Preferably, the positioning disc is circular, a through hole is formed in the middle of the positioning disc, and the guide key is arranged at the through hole.
Preferably, the positioning assembly further comprises a positioning shaft, the bottom end of the positioning shaft is inserted into the through hole, the second bevel gear is sleeved on the top end of the positioning shaft, and the second bevel gear is axially positioned on the positioning surface of the positioning disc.
Preferably, the positioning assembly further comprises a T-shaped bolt, and the head of the T-shaped bolt is clamped in the first groove and sequentially penetrates through the guide key and the positioning shaft from bottom to top.
Preferably, the periphery of the positioning shaft is provided with an annular first clamping table, and the second bevel gear is sleeved on the positioning shaft and clamped on the first clamping table.
Preferably, the vertical positioning plate is provided with a shaft hole, and one end of the detection shaft penetrates through the shaft hole.
Preferably, an annular second clamping table is arranged on the detection shaft, an external thread is arranged at one end of the detection shaft, and a first nut is in threaded connection with the external thread;
the first nut and the second clamping table clamp the first bevel gear, and the first bevel gear and the detection shaft are coaxially arranged.
Preferably, the adjustment assembly comprises an adjustment screw and a top block;
the top block is connected to the end face, away from the vertical plate, of the horizontal positioning plate and is parallel to the vertical positioning plate;
the positioning plate is located on the upper surface of the horizontal positioning plate, and the adjusting screw penetrates through the ejector block to be tightly pressed against the outer edge of the positioning plate and is used for adjusting the horizontal position of the positioning plate.
Preferably, the end face of the vertical positioning plate, which faces the horizontal plate, is provided with a second groove, and the second groove is aligned with the positioning plate.
The utility model relates to a device for measuring the distance between the intersection point of the meshing pitch lines of a bevel gear and an installation surface, which has the beneficial effects that: the intersection point of the meshing pitch lines of the first bevel gear and the second bevel gear is enabled to coincide with the axis of the detection shaft through the positioning assembly, the two bevel gears are enabled to be normally meshed through the adjusting assembly, the distance between the intersection point of the meshing pitch lines of the first bevel gear and the second bevel gear and the axis of the detection shaft is measured, the distance between the intersection point of the meshing pitch lines of the first bevel gear and the second bevel gear and the axis of the positioning surface of the positioning plate can be calculated, the distance between the intersection point of the meshing pitch lines and the vertical positioning plate can be calculated through measuring the distance between the second bevel gear and the vertical positioning plate, the thickness and the grinding amount of the adjusting pads in the horizontal direction and the vertical direction can be calculated, the first bevel gear and the second bevel gear can be accurately assembled into the box body, the meshing accuracy is guaranteed, and certain damage to the accuracy of parts caused by back and forth disassembly is avoided.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in greater detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout;
FIG. 1 is a schematic structural diagram of a device for measuring the distance between the intersection point of meshing pitch lines of a bevel gear and a mounting surface according to an exemplary embodiment of the utility model;
FIG. 2 illustrates a top view of an apparatus for measuring the distance between a bevel gear meshing pitch line intersection and a mounting surface in accordance with an exemplary embodiment of the present invention;
FIG. 3 illustrates a front view of a pick-up body of an apparatus for measuring the distance between a bevel gear meshing pitch line intersection and a mounting surface in accordance with an exemplary embodiment of the present invention;
FIG. 4 shows a side view of a pick-up body of an apparatus for measuring the distance of a bevel gear meshing pitch line intersection from a mounting surface in accordance with an exemplary embodiment of the present invention;
FIG. 5 shows a top view of a detector body of an apparatus for measuring the distance between a bevel gear meshing pitch line intersection and a mounting surface according to an exemplary embodiment of the present invention.
Description of reference numerals:
1. the device comprises a detection body 2, a positioning disc 3, a detection shaft 4, an adjusting component 5, a first bevel gear 6, a second bevel gear 7, a second clamping table 8, a first nut 9, an adjusting screw 10, a top block 11, a guide key 12, a positioning shaft 13, a T-shaped bolt 14, a first clamping table 15, a second groove 16 and a first groove.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
In order to solve the problems in the prior art, the utility model provides a device for measuring the distance between the intersection point of the meshing pitch line of a bevel gear and an installation surface, which comprises a detection body 1, a positioning disc 2, a detection shaft 3, a positioning assembly and an adjusting assembly 4 as shown in figures 1 to 2; wherein the content of the first and second substances,
the detection body 1 is L-shaped and comprises a vertical positioning plate and a horizontal positioning plate which are connected;
the detection shaft 3 is vertically connected to the vertical positioning plate and is parallel to the horizontal positioning plate, and the first bevel gear 5 is sleeved on the detection shaft 3;
the positioning disc 2 is connected to the horizontal positioning plate through a positioning assembly, the upper surface of the positioning disc 2 is a positioning surface, and the second bevel gear 6 is connected to the positioning surface of the positioning disc 2 through the positioning assembly;
the adjusting assembly 4 is used for adjusting the second bevel gear 6 and the first bevel gear 5 to a normal meshing state.
The utility model relates to a device for measuring the distance between the intersection point of the meshing pitch lines of bevel gears and a mounting surface, wherein the intersection point of the meshing pitch lines of a first bevel gear 5 and a second bevel gear 6 is coincided with the axis of a detection shaft 3 through a positioning component, the two bevel gears are normally meshed through an adjusting component 4, the distance between the intersection point of the meshing pitch lines of the first bevel gear 5 and the second bevel gear 6 and a positioning disk 2 can be calculated and obtained by measuring the distance between the detection shaft 3 and the positioning surface of the positioning disk 2, namely the mounting surface of the second bevel gear 6, the distance between the intersection point of the meshing pitch lines and a vertical positioning plate can be calculated and obtained by measuring the distance between the second bevel gear 6 and the vertical positioning plate, the contact surface of the vertical positioning plate and the first bevel gear 5 is the mounting surface of the first bevel gear 5, and the grinding amount of an adjusting pad in the horizontal direction and the vertical direction can be calculated through the distances, therefore, the first bevel gear 5 and the second bevel gear 6 can be accurately assembled into the box body, and certain damage to the precision of parts caused by back-and-forth disassembly is avoided.
As shown in fig. 1 and fig. 3 to fig. 5, the positioning assembly includes a guide key 11, a first groove 16 having an inverted T-shaped cross section and being parallel to the axial direction of the detection shaft 3 is formed in the middle of the horizontal positioning plate, and the guide key 11 is slidably disposed in the first groove 16 and connected to the bottom of the positioning plate 2.
Preferably, the guide key 11 has a bar shape and is movable within the first recess 16 toward and away from the vertical positioning plate.
Preferably, the positioning plate 2 is circular, a through hole is formed in the middle of the positioning plate 2, and the guide key 11 is arranged at the through hole. The guide key 11 can be fixedly connected with the positioning disk 2 through bolts and is positioned below the through hole.
The positioning assembly further comprises a positioning shaft 12, the bottom end of the positioning shaft 12 is inserted into the through hole of the positioning disc 2, the second bevel gear 6 is sleeved on the top end of the positioning shaft 12 and is axially positioned on the positioning surface of the positioning disc 2. The positioning shaft 12 is used to position the second bevel gear 6.
The processing precision such as the parallelism and the distance size from the detection shaft 3 to the positioning surface of the positioning disc 2, the mutual perpendicularity between the vertical positioning plate and the positioning surface, the symmetry between the first groove 16 and the positioning shaft 12 and the like is very critical, and the precision of the processing precision must be ensured. The two bevel gears are respectively arranged on the detection shaft 3 and the positioning shaft 12 to realize radial centering of the bevel gears, and the adjustment assembly 4 and the guide key 11 are used for guiding and adjusting to enable the two bevel gears to be normally meshed.
The positioning assembly further comprises a T-shaped bolt 13, the head of the T-shaped bolt 13 is clamped in the first groove 16, sequentially penetrates through the guide key 11 and the positioning shaft 12 from bottom to top, and is fastened with the positioning shaft 12 and the guide key 11 through a second nut.
As shown in fig. 3 to 5, first recess 16 is a bar groove, the cross section is the shape of falling T, its cross section includes vertical groove and the horizontal groove of intercommunication, the width of horizontal groove is greater than the width of vertical groove, first recess 16 sets up with the horizontal location board syntropy, guide key 11 is located in the vertical groove, can slide towards the vertical location board along the vertical groove, the vertical groove has the limiting displacement along the axial direction of perpendicular to detection axle 3 to guide key 11 simultaneously, the bolt head of T type bolt 13 is located the horizontal groove of first recess 16, vertical direction's spacing is carried out through the vertical groove of first recess 16, be used for being connected guide key 11 and location axle 12 with the horizontal location board, and fasten fixedly through the second nut.
The periphery of the positioning shaft 12 is provided with an annular first clamping table 14, and the second bevel gear 6 is sleeved on the positioning shaft 12 and clamped on the first clamping table 14. An annular third groove is formed in the second bevel gear 6, and the third groove is clamped on the first clamping table 14.
As shown in fig. 3, the vertical positioning plate is provided with a shaft hole, and one end of the detection shaft 3 passes through the shaft hole.
In one embodiment of the utility model, the second clamping table 7 in an annular shape is arranged on the detection shaft 3, an external thread is arranged at one end of the detection shaft 3, one end of the detection shaft 3 extends out of the end face, away from the horizontal positioning plate, of the vertical positioning plate, and the first nut 8 is in threaded connection with the external thread;
the first bevel gear 5 is clamped by the first nut 8 and the second clamping table 7, and the first bevel gear 5 and the detection shaft 3 are coaxially arranged.
Preferably, the adjustment assembly 4 comprises an adjustment screw 9 and a top block 10;
the top block 10 is connected to the end face, deviating from the vertical positioning plate, of the horizontal positioning plate and is parallel to the vertical positioning plate;
the positioning plate 2 is positioned on the upper surface of the horizontal positioning plate, and the adjusting screw 9 penetrates through the jacking block 10 to be tightly jacked on the outer edge of the positioning plate 2 and used for adjusting the horizontal position of the positioning plate 2.
The upper surface of the positioning plate 2 is a mounting reference surface of the second bevel gear 6, the horizontal position of the positioning plate 2 is adjusted through the adjusting component 4, the position of the second bevel gear 6 in the horizontal direction can be adjusted, the second bevel gear 6 and the first bevel gear 5 are normally meshed, and the meshing amount meets the use requirement.
Preferably, the top block 10 is attached to the end surface of the horizontal positioning plate by bolts.
The vertical positioning plate is equipped with second recess 15 towards the terminal surface of horizontal positioning plate, and second recess 15 aligns with positioning disk 2. The second groove 15 is used for adapting to the horizontal movement of the positioning disc 2 so as to prevent the positioning disc 2 from interfering with the checking fixture body 1 and facilitate the measurement of bevel gears with various sizes.
When the device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface is used, the distance L2 from the intersection point of the meshing pitch lines of the first bevel gear 5 and the second bevel gear 6 to the positioning surface of the positioning plate 2 can be calculated by measuring the minimum distance L1 between the outer periphery of the detection shaft 3 and the positioning plate 2, and the distance L4 between the intersection point of the meshing pitch lines and the vertical plate is calculated and obtained by measuring the minimum distance L3 between the outer periphery of the second bevel gear 6 and the vertical positioning plate, and the specific process is as follows:
fixing a first bevel gear 5 on a vertical positioning plate of the detector body 1 by using a detection shaft 3 and a first nut 8;
assembling the second bevel gear 6 on the horizontal positioning plate of the detection body 1 by using a positioning shaft 12, a positioning plate 2, a guide key 11 and a first bolt 13, adjusting the second bevel gear 6 to be normally meshed with the first bevel gear 5 by using an adjusting screw 9 and the guide key 11, and then screwing a second nut on the first bolt 13 to fix the positioning shaft 12, the guide key 11 and the horizontal positioning plate;
under the condition that the first bevel gear 5 is normally meshed with the second bevel gear 6, the intersection point of the meshing pitch lines of the first bevel gear 5 and the second bevel gear 6 is coincided with the intersection point of the axis of the detection shaft 3 and the axis of the positioning shaft 12, and the distance L3 between the second bevel gear 6 and the vertical positioning plate in the horizontal direction and the distance L1 between the detection shaft 3 and the positioning plate 2 in the vertical direction are respectively measured;
the distance from the intersection point of the meshing pitch lines in the horizontal direction to the mounting base surface, namely the distance L4 from the intersection point of the meshing pitch lines to the surface of the vertical positioning plate can be obtained by adding the radius of the second bevel gear 6 to L3; the distance L2 from the intersection point of the meshing pitch line to the positioning surface can be obtained by adding L1 to the radius of the detection shaft 3.
Through the calculation, the distance between the intersection point of the meshing pitch lines of the two bevel gears and the mounting base plane can be obtained, so that a powerful basis is provided for the mounting of the bevel gears, and the frequent dismounting is avoided.
The distance L4 from the intersection point of the meshing pitch line to the surface of the vertical plate and the distance L2 from the intersection point of the meshing pitch line to the positioning surface are obtained through the calculation, the size from the axis of the bevel gear mounting hole in the vertical direction of the box body of the turn-milling head to the rear positioning surface of the box body bearing hole and the size from the bevel gear axial positioning surface of the central shaft on the vertical spindle sleeve to the positioning combination surface of the box body of the turn-milling head on the vertical spindle are combined through the measurement, an assembly size chain of the two bevel gears in the horizontal direction and an assembly size chain in the vertical direction can be established, the thickness size actually required by the adjustment pad of the bevel gear in the horizontal direction and the thickness actually required by the adjustment pad of the bevel gear in the vertical direction can be calculated, the specific size specification of the adjustment pad in the horizontal direction and the vertical direction and the grinding amount required by the processing can be calculated, then the adjustment pads are ground, and the first bevel gear 5 and the second bevel gear 6 can be accurately assembled into the box body, the meshing precision can be effectively guaranteed, repeated disassembly and assembly under the condition of inconvenient observation are avoided, and damage to precision caused by back-and-forth disassembly is avoided.
While embodiments of the present invention have been described above, the above description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A device for measuring the distance between the intersection point of the meshing pitch line of a bevel gear and an installation surface is characterized by comprising a detection body (1), a positioning disc (2), a detection shaft (3), a positioning assembly and an adjusting assembly (4);
the detection body (1) is L-shaped and comprises a vertical positioning plate and a horizontal positioning plate which are connected;
the detection shaft (3) is vertically connected to the vertical positioning plate and is parallel to the horizontal positioning plate, and the first bevel gear (5) is sleeved on the detection shaft (3);
the positioning disc (2) is connected to the horizontal positioning plate through the positioning assembly, the upper surface of the positioning disc (2) is a positioning surface, and the second bevel gear (6) is connected to the positioning surface of the positioning disc (2) through the positioning assembly;
the adjusting component (4) is used for adjusting the second bevel gear (6) and the first bevel gear (5) to a normal meshing state.
2. The apparatus for measuring the distance between the intersection point of the meshing pitch lines of bevel gears and the mounting surface according to claim 1, wherein the positioning assembly comprises a guide key (11), the middle part of the horizontal positioning plate is provided with a first groove (16) which is parallel to the axial direction of the detection shaft (3) and has an inverted T-shaped cross section, and the guide key (11) is slidably arranged in the first groove (16) and connected to the bottom of the positioning plate (2).
3. The device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface according to claim 2, wherein the positioning disc (2) is circular, a through hole is formed in the middle of the positioning disc (2), and the guide key (11) is arranged at the through hole.
4. The device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface according to claim 3, wherein the positioning assembly further comprises a positioning shaft (12), the bottom end of the positioning shaft (12) is inserted into the through hole, and the second bevel gear (6) is sleeved on the top end of the positioning shaft (12) and axially positioned on the positioning surface of the positioning disc (2).
5. The device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface according to claim 4, wherein the positioning assembly further comprises a T-shaped bolt (13), the head of the T-shaped bolt (13) is clamped in the first groove (16) and penetrates through the guide key (11) and the positioning shaft (12) from bottom to top in sequence.
6. The device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface according to claim 4, wherein the positioning shaft (12) is provided with a first clamping table (14) in an annular shape on the periphery, and the second bevel gear (6) is sleeved on the positioning shaft (12) and clamped on the first clamping table (14).
7. The apparatus for measuring the distance between the intersection point of the meshing pitch lines of bevel gears and the mounting surface according to claim 1, wherein the vertical positioning plate is provided with a shaft hole through which one end of the detection shaft (3) passes.
8. The device for measuring the distance between the intersection point of the meshing pitch lines of the bevel gears and the mounting surface according to claim 7, wherein the detection shaft (3) is provided with an annular second clamping table (7), the end of the detection shaft (3) is provided with an external thread, and a first nut (8) is in threaded connection with the external thread;
the first bevel gear (5) is clamped by the first nut (8) and the second clamping table (7), and the first bevel gear (5) and the detection shaft (3) are coaxially arranged.
9. The device for measuring the distance between the bevel gear meshing pitch line intersection and the mounting surface according to claim 1, wherein the adjustment assembly (4) comprises an adjustment screw (9) and a top block (10);
the top block (10) is connected to the end face, deviating from the vertical positioning plate, of the horizontal positioning plate and is parallel to the vertical positioning plate;
the positioning plate (2) is located on the upper surface of the horizontal positioning plate, and the adjusting screw (9) penetrates through the jacking block (10) to be tightly jacked on the outer edge of the positioning plate (2) and is used for adjusting the horizontal position of the positioning plate (2).
10. Device for measuring the distance between the intersection of the meshing pitch lines of bevel gears and the mounting surface according to claim 1, characterized in that the end surface of the vertical positioning plate facing the horizontal positioning plate is provided with a second recess (15), the second recess (15) being aligned with the positioning plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130837.2U CN216645300U (en) | 2021-12-14 | 2021-12-14 | Device for measuring distance between bevel gear meshing pitch line intersection point and mounting surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130837.2U CN216645300U (en) | 2021-12-14 | 2021-12-14 | Device for measuring distance between bevel gear meshing pitch line intersection point and mounting surface |
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| Publication Number | Publication Date |
|---|---|
| CN216645300U true CN216645300U (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123130837.2U Active CN216645300U (en) | 2021-12-14 | 2021-12-14 | Device for measuring distance between bevel gear meshing pitch line intersection point and mounting surface |
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| Country | Link |
|---|---|
| CN (1) | CN216645300U (en) |
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2021
- 2021-12-14 CN CN202123130837.2U patent/CN216645300U/en active Active
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Address after: 110025 No. 1-8, 17a, Kaifa Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee after: General Technology Group Shenyang Machine Tool Co.,Ltd. Address before: 110025 No. 1-8, 17a, Kaifa Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee before: SHENYANG MACHINE TOOL (GROUP) CO.,LTD. |
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