CN117102844A - Flywheel gear ring laminating machine and laminating method - Google Patents
Flywheel gear ring laminating machine and laminating method Download PDFInfo
- Publication number
- CN117102844A CN117102844A CN202311384428.6A CN202311384428A CN117102844A CN 117102844 A CN117102844 A CN 117102844A CN 202311384428 A CN202311384428 A CN 202311384428A CN 117102844 A CN117102844 A CN 117102844A
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- flywheel
- gear ring
- base
- block
- supporting
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- 238000010030 laminating Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The application relates to a flywheel gear ring laminating machine and a laminating method. The novel gear ring pressing device mainly comprises a base, wherein a support is arranged on the base, a first lifting mechanism is arranged at the upper end of the support, the first lifting mechanism is connected with a pressing jig, an inner supporting component which can vertically float relative to the base is arranged on the base, the inner supporting component is used for supporting a gear ring, a supporting ring is arranged above the base and used for supporting the gear ring, and the supporting ring is fixed relative to the base. The flywheel pressing machine is beneficial to realizing the pressing of the gear ring and the flywheel.
Description
Technical Field
The application relates to the field of flywheel gear ring assembly, in particular to a flywheel gear ring laminating machine and a laminating method.
Background
Currently, during production, the flywheel needs to be pressed into the gear ring. The traditional method is that the flywheel is placed in the heated gear ring, and then the pressure is directly applied to the flywheel through the pressing machine, so that the flywheel is pressed into the gear ring. However, this method needs to heat the gear ring first, which is time-consuming, and the heating process is equivalent to one-time heat treatment, which may have a certain influence on the organization structure of the gear ring, and the heat of the heated gear ring will be transferred to the flywheel and other mechanisms during the pressing process, which will also have a certain influence on the flywheel and other mechanisms. Moreover, this method requires heating first, and the flywheel and ring gear that are thermally compressed also require cooling, which requires a certain amount of time. The overall lamination process is relatively time consuming.
For example, chinese patent 201610544829.7 discloses a flywheel-ring gear press, which is to heat the ring gear first and then press the flywheel into the ring gear. The press has the above-described problems.
Disclosure of Invention
Based on the above, a flywheel gear ring laminating machine is provided. The pressing machine is beneficial to quickly realizing the pressing of the gear ring and the flywheel, and is beneficial to improving the assembly efficiency of the flywheel and the gear ring.
The flywheel gear ring laminating machine comprises a base and a bracket, wherein the upper end of the bracket is provided with a first lifting mechanism which is connected with a pressing jig,
an inner support component which can float up and down relative to the base is arranged on the base and is used for supporting the gear ring,
the upper side of base is provided with the support ring, the support ring is used for supporting the ring gear, the support ring is fixed relative to the base.
In one embodiment, the inner support assembly comprises a transmission piece, a second lifting mechanism, a driving block, an annular supporting disc, a connecting plate, a positioning block, a sliding rail assembly and a support block assembly,
the base is provided with a first through hole, a transmission piece is arranged in the first through hole, the lower end of the transmission piece is connected with a second lifting mechanism, the upper end of the transmission piece is connected with a driving block,
an annular supporting disk is arranged above the base, an elastic lifting component is arranged in front of the annular supporting disk and the base,
the upper surface of the annular supporting disc is provided with a plurality of sliding rail assemblies, each sliding rail assembly is provided with a supporting block assembly, each supporting block assembly is positioned at the inner side of the supporting ring and is in sliding fit with the driving block, the supporting block assemblies are mutually separated and mutually closed by the lifting movement of the driving block,
the connecting plate is located the top of drive piece, be connected with a plurality of stands between connecting plate and the annular supporting disk, the locating piece sets up the central point of connecting plate.
In one embodiment, the base is provided with a plurality of guide posts, the annular supporting plate is provided with a plurality of first type guide grooves, each first type guide groove corresponds to each guide post one by one, and the supporting ring is connected with the upper end of each guide post.
In one embodiment, the elastic lifting assembly comprises a bushing, a lifting column and a spring, wherein the bushing, the lifting column and the spring are arranged on the base, one end of the lifting column is connected with the annular supporting disc, the other end of the lifting column is matched with the bushing, the spring is sleeved on the lifting column, one end of the spring abuts against the annular supporting disc, and the other end of the spring abuts against the base.
In one embodiment, the second type guide groove is obliquely arranged on the driving block, the supporting block assembly comprises a first block body and a second block body, one end of the first block body is connected with the sliding rail assembly, the other end of the first block body is obliquely provided with a guide part, the guide part is in sliding fit with the second type guide groove on the driving block, the second block body is arranged above the first block body, the second block body comprises a connecting part connected with the first block body and an arc-shaped part connected with the connecting part, and the arc-shaped part comprises an arc-shaped side wall.
In one embodiment, the connecting plate is provided with a protruding portion and a groove portion, the protruding portion is located in a gap between two adjacent second blocks and is connected with the corresponding upright post, and the groove portion is used for accommodating the connecting portion of the second blocks.
In one embodiment, a positioning groove matched with the positioning block is arranged in the center of the pressing jig.
In one embodiment, the pressing jig is provided with an annular step.
A flywheel gear ring laminating method uses the flywheel gear ring laminating machine to place a gear ring on a supporting ring, an inner supporting component supports the gear ring and simultaneously round the gear ring, a flywheel is placed in the gear ring, a first lifting mechanism drives a pressing jig to descend to apply pressure to the flywheel, and the flywheel is pressed into the gear ring.
The beneficial effects of the application are as follows:
according to the application, the gear ring is rounded while being propped up by the inner propping assembly, the flywheel is placed in the gear ring, the first lifting mechanism drives the pressing jig to descend to apply pressure to the flywheel, and the flywheel is pressed into the gear ring. The whole process is quick and convenient, and the gear ring is not heated like the traditional method, so that adverse effects caused by heating the gear ring can be avoided, and cooling time is not needed after lamination like the traditional hot pressing method.
In addition, the internal support assembly can prop up and round the gear ring in the initial stage of the pressing down of the flywheel, and can make room for the pressing down stroke of the flywheel because the internal support assembly can float up and down in the continuous pressing down process of the flywheel. After the flywheel is pressed in place, the inner support assembly can float upwards, so that the flywheel and the gear ring which are pressed together can be jacked upwards together, and the product can be taken out conveniently. The application omits the steps of heating and cooling, so that the whole pressing process is time-saving and labor-saving, and the efficiency is improved.
Drawings
Fig. 1 is a schematic view of a flywheel ring gear pressing machine according to an embodiment of the present application.
Fig. 2 is a schematic view of a supporting ring on a flywheel ring gear press according to an embodiment of the present application supported by a plurality of guide posts.
Fig. 3 is a schematic diagram of the matching relationship among the driving block, the first block, the second block and the sliding rail assembly according to the embodiment of the application.
FIG. 4 is a schematic view of an inner strut assembly according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a flywheel and a ring gear pressed together according to an embodiment of the present application.
Fig. 6 is a schematic view of a plurality of posts connected between a connection plate and an annular support plate according to an embodiment of the present application.
Fig. 7 is a schematic view of a pressing tool with steps according to an embodiment of the application.
Wherein: 101. a base; 102. an inner support assembly; 103. a support ring; 104. a guide post; 105. a gear ring; 106. a flywheel; 107. a bracket; 108. a first lifting mechanism; 109. a pressing jig; 1011. a first through hole; 110. a driving block; 1101. a second type of guide slot; 1111. a guide part; 111. a first block; 112. a slide rail assembly; 113. a second block; 1131. a connection part; 1132. an arc-shaped portion; 1133. an arcuate sidewall; 1091. a step; 1092. a positioning groove;
114. an annular support plate; 1141. a first type of guide groove; 115. a second lifting mechanism; 116. a connecting plate; 117. a positioning block; 118. lifting columns; 119. a spring; 1161. a groove portion; 1162. a boss.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings.
As shown in fig. 1 and 2, an embodiment of the present application provides a flywheel gear ring pressing machine, which includes a base 101, a support 107 is provided on the base 101, a first lifting mechanism 108 is provided at an upper end of the support 107, and the first lifting mechanism 108 may be a linear movement module driven by a motor. The first lifting mechanism 108 is connected with the pressing jig 109, the base 101 is provided with an inner support assembly 102 which can float up and down relative to the base 101, the inner support assembly 102 is used for supporting the gear ring 105, a support ring 103 is arranged above the base 101, the support ring 103 is used for supporting the gear ring 105, and the support ring 103 is fixed relative to the base 101.
When the press-fit machine is used, firstly, the gear ring 105 is placed on the inner support assembly 102, the gear ring 105 is propped up through the inner support assembly 102, then the flywheel 106 is placed in the gear ring 105, the pressing jig 109 is controlled by the first lifting mechanism 108 to press down the flywheel 106, firstly, the flywheel 106 is pressed down for a certain distance, and then the inner support assembly 102 is retracted, so that the inner support assembly 102 is separated from the gear ring 105, and then the flywheel 106 is continuously pressed into the gear ring 105. When the flywheel 106 contacts the inner support assembly 102 during the depression of the flywheel 106, the flywheel 106 will move downward with the inner support assembly 102 because the inner support assembly 102 is floatable up and down. After the flywheel 106 is pressed in place, the first lifting mechanism 108 is lifted up and reset, and then the pressed product can be taken out.
Specifically, as shown in fig. 7, the pressing jig 109 of the present application is substantially circular, and the pressing jig 109 is provided with an annular step 1091, and the height of the step 1091 is the pressing dimension of the flywheel 106. Meanwhile, sensors such as a grating ruler, a pressure sensor and the like can be arranged on the first lifting mechanism 108, so that the flywheel 106 is pressed in place, and overpressure cannot be generated.
In one embodiment, as shown in fig. 3 and fig. 4, the inner support assembly 102 includes a transmission member, a second lifting mechanism 115, a driving block 110, an annular supporting disc 114, a connecting plate 116, a positioning block 117, a sliding rail assembly 112, and a support block assembly, the base 101 is provided with a first through hole 1011, a transmission member is disposed in the first through hole 1011, a second lifting mechanism 115 is connected to a lower end of the transmission member, and the second lifting mechanism 115 may be an air cylinder. The upper end of the transmission piece is connected with a driving block 110, an annular supporting disk 114 is arranged above the base 101, and a plurality of elastic lifting assemblies are arranged in front of the annular supporting disk 114 and the base 101. The upper surface of annular supporting disk 114 is provided with a plurality of slide rail subassembly 112, is provided with a supporting shoe subassembly on every slide rail subassembly 112, and each supporting shoe subassembly is located the inboard of holding ring 103, each supporting shoe subassembly with drive piece 110 sliding fit, the elevating movement through drive piece 110 makes each supporting shoe subassembly separate each other and draw close each other, connecting plate 116 is located the top of drive piece 110, be connected with a plurality of stands between connecting plate 116 and the annular supporting disk 114, locating piece 117 sets up the central point of connecting plate 116.
Specifically, the driving block 110 moves up and down under the driving of the second lifting mechanism 115, and when the driving block 110 ascends, the driving block 110 drives each supporting block component to separate from each other, so as to prop up the gear ring 105. When the driving block 110 descends, the driving block 110 drives the respective strut block assemblies to approach each other, and the respective strut blocks are separated from the ring gear 105. Due to the plurality of elastic lifting assemblies arranged between the annular supporting disc 114 and the base 101, the annular supporting disc 114 can float up and down relative to the base 101. For example, the flywheel 106 is pressed into the gear ring 105 for a certain distance, then the driving block 110 descends to drive the supporting block assemblies to be folded together and separated from the gear ring 105, and then pressure is continuously applied to the flywheel 106, so that the flywheel 106 drives the whole inner supporting assembly 102 to move downwards. When the flywheel 106 is pressed in place, the first lifting mechanism 108 is lifted and reset, and under the action of the elastic lifting assembly, the whole inner support assembly 102 is lifted and reset relative to the base 101. In one embodiment, after the inner support assembly 102 is lifted and reset, the flywheel 106 is driven to lift, the flywheel 106 and the gear ring 105 are already pressed together, and then a product formed by the flywheel 106 and the gear ring 105 is driven to lift by the inner support assembly 102. This allows the product to be separated from the support ring 103, facilitating removal of the product.
In one embodiment, the base 101 is provided with a plurality of guide posts 104, the annular supporting plate 114 is provided with a plurality of first type guide slots 1141, each first type guide slot 1141 corresponds to each guide post 104 one by one, and the supporting ring 103 is connected to the upper end of each guide post 104. So configured, the guide post 104 may provide a guide for the annular support plate 114. And the supporting ring 103 is provided on the guide post 104 without additional supporting structures for supporting the rising supporting ring 103, so that the whole structure is simplified.
In one embodiment, the elastic lifting assembly comprises a bushing arranged on the base 101, a lifting column 118 and a spring 119, one end of the lifting column 118 is connected with the annular supporting disc 114, the other end of the lifting column 118 is matched with the bushing, the spring 119 is sleeved on the lifting column 118, one end of the spring 119 abuts against the annular supporting disc 114, and the other end of the spring 119 abuts against the base 101.
Specifically, the lifting column 118 moves up and down relative to the bushing under the driving of the annular support plate 114, and the spring 119 is compressed during the downward movement of the annular support plate 114. The springs 119 also act to assist in resetting the annular support disc 114 when the annular support disc 114 is no longer subjected to a downward force.
In one embodiment, as shown in fig. 3, the driving block 110 is obliquely provided with a second type guide groove 1101, the support block assembly includes a first block 111 and a second block 113, one end of the first block 111 is connected with the slide rail assembly 112, the other end of the first block 111 is obliquely provided with a guide portion 1111, the guide portion 1111 is slidably matched with the second type guide groove 1101 on the driving block 110, the second block 113 is disposed above the first block 111, the second block 113 includes a connection portion 1131 connected with the first block 111 and an arc portion 1132 connected with the connection portion 1131, and the arc portion 1132 includes an arc sidewall 1133. So arranged, the arc-shaped side walls 1133 of the second blocks 113 are spliced with each other to form a circular side wall, and the arc-shaped side walls 1133 of the second blocks 113 can support different positions of the gear ring 105, so that the gear ring 105 can be stretched and the gear ring 105 can be rounded.
Specifically, the entire driving block 110 has a truncated cone shape, and a plurality of the second type guide grooves 1101 are provided in the circumferential direction of the driving block 110. During the lifting process of the driving block 110, the driving block 110 will cause each first block 111 to move outwards, so that each second block 113 will prop open the gear ring 105. During the descent of the driving block 110, the driving catches up to cause each first block 111 to move inwards, so that each second block 113 is separated from the ring gear 105.
In one embodiment, as shown in fig. 6, the connection board 116 is provided with a protruding portion 1162 and a groove portion 1161, the protruding portion 1162 is located in a gap between two adjacent second blocks 113 and is connected to a corresponding column, a sensor may be disposed at a position of the protruding portion 1162, and the groove portion 1161 is configured to receive the connection portion 1131 of the second blocks 113.
In one embodiment, the pressing tool 109 is provided with a positioning groove 1092 at the center, which matches with the positioning block 117.
The embodiment of the application also provides a flywheel gear ring laminating method, which uses the flywheel 106 gear ring 105 laminating machine to place the gear ring 105 on the supporting ring 103, the internal supporting component 102 supports the gear ring 105, and simultaneously, the gear ring 105 is rounded, the flywheel 106 is placed in the gear ring 105, and the first lifting mechanism 108 drives the pressing jig 109 to descend to apply pressure to the flywheel 106, so that the flywheel 106 is pressed into the gear ring 105.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (9)
1. A flywheel gear ring laminating machine is characterized by comprising a base and a bracket, wherein the upper end of the bracket is provided with a first lifting mechanism which is connected with a pressing jig,
an inner support component which can float up and down relative to the base is arranged on the base and is used for supporting the gear ring,
the upper side of base is provided with the support ring, the support ring is used for supporting the ring gear, the support ring is fixed relative to the base.
2. The flywheel gear ring laminating machine according to claim 1, wherein the inner support assembly comprises a transmission member, a second lifting mechanism, a driving block, an annular supporting disc, a connecting plate, a positioning block, a sliding rail assembly and a support block assembly,
the base is provided with a first through hole, a transmission piece is arranged in the first through hole, the lower end of the transmission piece is connected with a second lifting mechanism, the upper end of the transmission piece is connected with a driving block,
an annular supporting disk is arranged above the base, an elastic lifting component is arranged in front of the annular supporting disk and the base,
the upper surface of the annular supporting disc is provided with a plurality of sliding rail assemblies, each sliding rail assembly is provided with a supporting block assembly, each supporting block assembly is positioned at the inner side of the supporting ring and is in sliding fit with the driving block, the supporting block assemblies are mutually separated and mutually closed by the lifting movement of the driving block,
the connecting plate is located the top of drive piece, be connected with a plurality of stands between connecting plate and the annular supporting disk, the locating piece sets up the central point of connecting plate.
3. The flywheel gear ring laminating machine according to claim 2, wherein a plurality of guide posts are arranged on the base, a plurality of first type guide grooves are arranged on the annular supporting plate, each first type guide groove corresponds to each guide post one by one, and the supporting ring is connected with the upper end of each guide post.
4. The flywheel gear ring laminating machine according to claim 2, wherein the elastic lifting assembly comprises a bushing arranged on the base, a lifting column and a spring, one end of the lifting column is connected with the annular supporting disc, the other end of the lifting column is matched with the bushing, the spring is sleeved on the lifting column, one end of the spring abuts against the annular supporting disc, and the other end of the spring abuts against the base.
5. The flywheel gear ring laminating machine according to claim 2, wherein the driving block is provided with a second type guide groove in an inclined manner, the support block assembly comprises a first block body and a second block body, one end of the first block body is connected with the sliding rail assembly, the other end of the first block body is provided with a guide portion in an inclined manner, the guide portion is in sliding fit with the second type guide groove in the driving block, the second block body is arranged above the first block body, the second block body comprises a connecting portion connected with the first block body and an arc portion connected with the connecting portion, and the arc portion comprises an arc side wall.
6. The flywheel ring gear press according to claim 5, wherein the connection plate is provided with a protruding portion and a recessed portion, the protruding portion being located in a gap between two adjacent second blocks and connected to the corresponding column, the recessed portion being configured to receive the connection portion of the second blocks.
7. The flywheel gear ring laminating machine according to claim 2, wherein a positioning groove matched with the positioning block is arranged in the center of the pressing jig.
8. The flywheel ring gear press according to claim 2, wherein the pressing jig is provided with an annular step.
9. A flywheel gear ring laminating method uses the flywheel gear ring laminating machine of claim 5, the gear ring is placed on the supporting ring, the inner supporting component supports the gear ring to be round, the flywheel is placed in the gear ring, the first lifting mechanism drives the pressing jig to descend to apply pressure to the flywheel, and the flywheel is pressed into the gear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384428.6A CN117102844B (en) | 2023-10-25 | 2023-10-25 | Flywheel gear ring laminating machine and laminating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384428.6A CN117102844B (en) | 2023-10-25 | 2023-10-25 | Flywheel gear ring laminating machine and laminating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117102844A true CN117102844A (en) | 2023-11-24 |
| CN117102844B CN117102844B (en) | 2023-12-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311384428.6A Active CN117102844B (en) | 2023-10-25 | 2023-10-25 | Flywheel gear ring laminating machine and laminating method |
Country Status (1)
| Country | Link |
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| CN (1) | CN117102844B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU734525A1 (en) * | 1974-01-22 | 1980-05-15 | Кемеровский Межотраслевой Научно- Исследовательский И Проектно-Технологический Институт Механизации И Автоматизации Машиностроения | Stand for assembling hydraulic pumps |
| JPH0880703A (en) * | 1994-09-13 | 1996-03-26 | Bridgestone Corp | Carriage equipped with swing-wheel |
| CN105945512A (en) * | 2016-07-12 | 2016-09-21 | 长沙飞斯特机械制造有限公司 | Flywheel gear ring pressing machine |
| CN107639410A (en) * | 2017-11-27 | 2018-01-30 | 湖北六和天轮机械有限公司 | A kind of fly wheel assembly pinion rings device |
| CN207154994U (en) * | 2017-08-11 | 2018-03-30 | 重庆光腾汽车零部件有限公司 | A kind of flywheel ring gear press fit device |
| CN109822324A (en) * | 2018-12-26 | 2019-05-31 | 芜湖东光大华机械制造有限公司 | A kind of gear ring hot pressing device of double-station |
| CN110449861A (en) * | 2019-08-15 | 2019-11-15 | 芜湖东光大华机械制造有限公司 | A kind of quick fixing tool of assembly of flywheel |
-
2023
- 2023-10-25 CN CN202311384428.6A patent/CN117102844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU734525A1 (en) * | 1974-01-22 | 1980-05-15 | Кемеровский Межотраслевой Научно- Исследовательский И Проектно-Технологический Институт Механизации И Автоматизации Машиностроения | Stand for assembling hydraulic pumps |
| JPH0880703A (en) * | 1994-09-13 | 1996-03-26 | Bridgestone Corp | Carriage equipped with swing-wheel |
| CN105945512A (en) * | 2016-07-12 | 2016-09-21 | 长沙飞斯特机械制造有限公司 | Flywheel gear ring pressing machine |
| CN207154994U (en) * | 2017-08-11 | 2018-03-30 | 重庆光腾汽车零部件有限公司 | A kind of flywheel ring gear press fit device |
| CN107639410A (en) * | 2017-11-27 | 2018-01-30 | 湖北六和天轮机械有限公司 | A kind of fly wheel assembly pinion rings device |
| CN109822324A (en) * | 2018-12-26 | 2019-05-31 | 芜湖东光大华机械制造有限公司 | A kind of gear ring hot pressing device of double-station |
| CN110449861A (en) * | 2019-08-15 | 2019-11-15 | 芜湖东光大华机械制造有限公司 | A kind of quick fixing tool of assembly of flywheel |
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| Publication number | Publication date |
|---|---|
| CN117102844B (en) | 2023-12-29 |
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