CN108213946B - Special water-cooling nozzle assembly machine - Google Patents
Special water-cooling nozzle assembly machine Download PDFInfo
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- CN108213946B CN108213946B CN201711497439.XA CN201711497439A CN108213946B CN 108213946 B CN108213946 B CN 108213946B CN 201711497439 A CN201711497439 A CN 201711497439A CN 108213946 B CN108213946 B CN 108213946B
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- 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
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/004—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
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- 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
A water-cooling nozzle assembly special plane, its characterized in that: comprises a front end cover plate press-fitting device (1) and a rod sleeve press-fitting device (2); the front end cover plate press-fitting device (1) comprises a first workbench surface (11), wherein a positioning tool (12) is arranged on the first workbench surface (11), a first pressing rod (163) of a first pressing head assembly (16) is arranged on the bottom surface of a first upper pressing plate (14) and is matched with the convex spherical surface of the spherical seat (161) through a matching part of the first pressing rod; the rod sleeve press-fitting device (2) comprises a second workbench surface (21), wherein a workpiece positioning groove (22) is formed in the second workbench surface (21), and a rear end cover body (23) for simulation is covered above the workpiece positioning groove (22); a second pressure head assembly (27) is arranged on the bottom surface of the second upper pressure plate (25), and the second pressure head assembly (27) comprises a second pressure rod (271) and a displacement sensor (272).
Description
Technical Field
The invention relates to automatic assembly equipment, in particular to a special water-cooling nozzle assembly machine.
Background
In an automobile exhaust emission system, a water-cooling nozzle is used, and the structure of the water-cooling nozzle is shown in fig. 1, and the water-cooling nozzle comprises a rear end cover body 100, a rod sleeve 101, a needle valve shaft 102, a front end base body 103 and a front end cover piece 104, wherein an electromagnetic coil is arranged in the rear end cover body 100, the needle valve shaft 102 penetrates into the rod sleeve 101 and is pressed into the front end base body 103 together, a fluid groove is formed in the front end face of the front end base body 103, the front end cover piece 104 is pressed onto the front end face of the front end base body 103, and the fluid groove on the bottom face of the front end base body 103 is covered, so that the fluid of the fluid groove is communicated with nozzle micropores on the front end cover piece 104. The inside of the water-cooled nozzle is provided with an electromagnetic coil and a needle valve shaft 102, namely an electromagnetic valve driving structure, and when the water-cooled nozzle works, the electromagnetic force generated by the electromagnetic coil drives the needle valve shaft 102 to act so as to control the opening and closing of the nozzle.
The water-cooled nozzle is provided with the following two special parts, which are difficult to solve:
1. the front end cover plate 104 is pressed with the front end face of the front end base 103, so that the parallelism of the front end cover plate 104 and the front end base 103 needs to be accurately ensured, and the parallelism tolerance range is within 1 wire;
2. the depth of the stem sleeve 101 pressed into the front end seat 103 is to ensure that the displacement of the needle valve shaft 102 under the magnetic field of the wire coil reaches the design requirement during the power-on operation.
Since there are no applicable assembling machines on the market, it is necessary to develop an applicable special assembling machine for the above-mentioned assembling difficulty of the water-cooling nozzle.
Disclosure of Invention
The invention aims to provide a special water-cooling nozzle assembly machine so as to fill the market blank.
In order to achieve the above purpose, the invention adopts the following technical scheme: the water-cooling nozzle assembly special machine comprises a rear end cover body, a rod sleeve, a needle valve shaft, a front end seat body and a front end cover plate;
the special water-cooling nozzle assembly machine comprises a front end cover plate press-fitting device and a rod sleeve press-fitting device; the front end cover plate press-fitting device is used for finishing the front end cover plate and the front end seat body press-fitting procedure; the rod sleeve press-fitting device is used for finishing the press-fitting process of the rod sleeve and the front end seat body;
the front end cover plate press-fitting device comprises a first workbench surface, and a positioning tool for positioning the front end seat body is arranged on the first workbench surface; the periphery of the positioning tool is provided with at least two vertical first guide rods, a first upper pressing plate is arranged above the first working table in parallel, a first guide sleeve is arranged on the first upper pressing plate corresponding to the first guide rods, and the first upper pressing plate is in sliding connection with the first working table in the vertical direction through the cooperation of the first guide sleeve and the first guide rods; the bottom surface of the first upper pressing plate is provided with a first pressing head assembly, and the first pressing head assembly comprises a spherical seat, a fixed cover and a first pressing rod; the spherical seat is convexly arranged on the bottom surface of the first upper pressing plate, a downward convex spherical surface is arranged on the spherical seat, a large-diameter section is arranged at the upper section of the first pressing rod, a matching part is arranged at the top of the large-diameter section corresponding to the convex spherical surface of the spherical seat, and the first pressing rod is matched with the convex spherical surface of the spherical seat through the matching part; the fixed cover is arranged on the large-diameter section of the first compression bar and the spherical seat from bottom to top and is fixedly connected with the first upper pressing plate; the bottom of the fixed cover is provided with a through hole, and the lower end of the first compression bar extends downwards through the through hole of the fixed cover;
the rod sleeve press-fitting device comprises a second workbench surface, wherein a workpiece positioning groove for placing and positioning the front end seat body is formed in the second workbench surface, and a rear end cover body for simulation is covered above the workpiece positioning groove; in the working state, the front end base body is placed on the workpiece positioning groove with the front end facing downwards, a gap exists between the front end of the front end base body and the bottom of the workpiece positioning groove, after a needle valve shaft and a rod sleeve are placed in an opening at the rear end of the front end base body, the rear end cover body for simulation is covered on the peripheries of the needle valve shaft and the rod sleeve, so that a simulation use test structure is formed; at least two vertical second guide rods are arranged on the periphery of the workpiece positioning groove on the second workbench surface, a second upper pressing plate is arranged above the second workbench surface in parallel, a second guide sleeve is arranged on the second upper pressing plate corresponding to the second guide rods, and the second upper pressing plate is in sliding connection with the second workbench surface in the vertical direction through the cooperation of the second guide sleeve and the second guide rods; the bottom surface of the second upper pressing plate is provided with a second pressing head assembly, the second pressing head assembly comprises a second pressing rod and a displacement sensor, the second pressing rod is vertically arranged corresponding to the workpiece positioning groove, the second pressing rod is movably arranged in the up-down direction relative to the second upper pressing plate, the top end of the second pressing rod is abutted against the detection head of the displacement sensor, and the displacement sensor is used for detecting the displacement of the second pressing rod in the up-down direction;
the front end cover plate press-fitting device and the rod sleeve press-fitting device are arranged in parallel on a horizontal plane, and a press driving source is arranged above the front end cover plate press-fitting device and the rod sleeve press-fitting device; the press driving source is connected with the front end cover sheet press-fitting device and the rod sleeve press-fitting device in a relative motion manner in the horizontal plane direction, so that the press driving source can be connected with the first upper pressing plate of the front end cover sheet press-fitting device and the second upper pressing plate of the rod sleeve press-fitting device in a switching manner.
In the above scheme, still include a frame, front end cover plate press-fit device and pole cover press-fit device slide connection is in the frame along the horizontal plane direction through the guide rail, the fixed press driving source that sets up in top of frame, the power take off end of this press driving source down with front end cover plate press-fit device and pole cover press-fit device are corresponding, be connected with translation drive arrangement on front end cover plate press-fit device and the pole cover press-fit device, this translation drive arrangement drive front end cover plate press-fit device and pole cover press-fit device translate along the guide rail, the power take off end connection with the press driving source is being switched to the first top board of front end cover plate press-fit device and the second top board of pole cover press-fit device.
The invention has the advantages that: the invention particularly designs the front end cover plate press-fitting device and the rod sleeve press-fitting device aiming at the assembly difficulty of the water cooling nozzle, wherein in the front end cover plate press-fitting device, a workpiece (namely a front end seat body) is precisely positioned by a positioning tool, and a spherical surface is formed between a first pressure rod and a first upper pressure plate to be matched, so that the first pressure rod has a self-correcting function when being pressed down, thereby ensuring the accuracy of parallelism during pressing; in the rod sleeve press-fitting device, a rear end cover body simulating a use state is specially configured, and the rear end cover body simulating the use state is electrified during pressing so as to simulate the use condition of a product, and displacement of a valve core shaft before and after electrification is detected by a displacement sensor, so that the rod sleeve press-fitting device not only has the function of finishing press-fitting, but also has the function of on-line detection of the similar condition. And, still designed front end cover plate pressure equipment device and pole cover pressure equipment device to share a press drive source, switch the connection when using, reduced the cost by a wide margin.
Drawings
FIG. 1 is an exploded perspective view of a water-cooled nozzle;
fig. 2 is a schematic perspective view of the whole machine according to the embodiment of the invention
Fig. 3 is a schematic perspective view of a front end cover sheet press-fitting device according to an embodiment of the present invention;
FIG. 4 is a front view schematically showing a front end flap press-fitting apparatus according to an embodiment of the present invention, the front end flap press-fitting apparatus being shown in a pre-press state;
fig. 5 is a front view schematically showing a front end flap press-fitting apparatus according to an embodiment of the present invention, the front end flap press-fitting apparatus showing a state at a press instant;
FIG. 6 is a perspective view of a rod cover press-fitting apparatus according to an embodiment of the present invention;
fig. 7 is a front view schematically showing a rod cover press-fitting apparatus according to an embodiment of the present invention, the drawing showing a state before press-fitting;
fig. 8 is a front view schematically showing a rod cover press-fitting apparatus according to an embodiment of the present invention, which shows a state at a press instant.
In the above figures:
100. a rear end cover; 101. a rod sleeve; 102. a needle valve shaft; 103. a front end base; 104. a front end cover plate; 1. the front end cover plate press-fitting device; 11. a first work surface; 12. positioning a tool; 121. a bottom support; 1211. a central protrusion; 122. a positioning cover; 1221. an annular positioning surface; 13. a first guide bar; 14. a first upper platen; 15. a first guide sleeve; 16. a first ram assembly; 161. a spherical seat; 162. a fixed cover; 1621. a through hole; 163. a first compression bar; 1631. a large diameter section; 2. the rod sleeve press-fitting device; 21. a second work surface; 22. a workpiece positioning groove; 23. a rear end cover for simulation; 24. a second guide bar; 25. a second upper platen; 26. a second guide sleeve; 27. a second ram assembly; 271. a second compression bar; 272. a displacement sensor; 3. a press drive source; 4. a frame; 5. and a guide rail.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings and examples:
examples: referring to fig. 1-8, a water-cooled nozzle assembly machine:
the water-cooled nozzle assembly machine is suitable for use as a water-cooled nozzle, and as shown in fig. 1, the water-cooled nozzle comprises a rear end cover body 100, a rod sleeve 101, a needle valve shaft 102, a front end base body 103 and a front end cover plate 104.
The special water-cooling nozzle assembly machine comprises a front end cover plate press-fitting device 1 and a rod sleeve press-fitting device 2; the front end cover sheet press-fitting device 1 is used for completing the press-fitting process of the front end cover sheet 104 and the front end base 103; the rod sleeve press-fitting device 2 is used for completing the press-fitting process of the rod sleeve 101 and the front end base 103. The special water-cooling nozzle assembly machine of the embodiment only completes the two procedures, and particularly completes the assembly of the whole water-cooling nozzle device by manual cooperation operation.
Referring to fig. 3-5, the front cover press-fitting device 1 includes a first working table 11, a positioning tool 12 for positioning the front base 103 is disposed on the first working table 11, the positioning tool 12 includes a base 121 and a positioning cover 122, and a central protrusion 1211 matched with the rear opening of the front base 103 is disposed on the upper surface of the base 121; in the working state, the front end base 103 is placed on the bottom support 121, and the rear end opening of the front end base 103 is matched and positioned with the central convex part 1211 of the bottom support 121; the positioning cover 122 is a cylindrical body with both open upper and lower ends, and a turn-up edge is provided at the upper end port inwards, so as to form a ring-shaped positioning surface 1221 facing downwards on the inner side of the top of the positioning cover 122; in the working state, the positioning cover 122 is arranged on the front end base 103 on the bottom support 121, so that the annular positioning surface 1221 of the positioning cover is in contact with the edge of the front end surface of the front end base 103; at least two vertical first guide rods 13 are arranged on the periphery of the positioning tool 12 on the first working table surface 11, a first upper pressing plate 14 is arranged above the first working table surface 11 in parallel, a first guide sleeve 15 is arranged on the first upper pressing plate 14 corresponding to the first guide rods 13, and the first upper pressing plate 14 is in sliding connection with the first working table surface 11 in the vertical direction through the cooperation of the first guide sleeve 15 and the first guide rods 13; the bottom surface of the first upper pressing plate 14 is provided with a first pressing head assembly 16, and the first pressing head assembly 16 comprises a spherical seat 161, a fixed cover 162 and a first pressing rod 163; the spherical seat 161 is convexly arranged on the bottom surface of the first upper pressing plate 14, the spherical seat 161 is provided with a downward convex spherical surface, the upper section of the first pressing rod 163 is provided with a large-diameter section 1631, the top of the large-diameter section 1631 is provided with a matching part corresponding to the convex spherical surface of the spherical seat 161, and the first pressing rod 163 is matched with the convex spherical surface of the spherical seat 161 through the matching part; the fixed cover 162 is arranged on the large diameter section 1631 of the first pressing rod 163 and the spherical seat 161 from bottom to top, and the fixed cover 162 is fixedly connected with the first upper pressing plate 14; the bottom of the fixed cover 162 is provided with a through hole 1621, and the lower end of the first pressing rod 163 extends downwards through the through hole 1621 of the fixed cover 162;
referring to fig. 6-8, the rod sleeve press-fitting device 2 includes a second working table 21, a workpiece positioning groove 22 for placing and positioning the front end base 103 is provided on the second working table 21, and a rear end cover 23 for simulation is covered above the workpiece positioning groove 22; in the working state, the front end base 103 is placed on the workpiece positioning groove 22 with the front end facing downwards, a gap exists between the front end of the front end base 103 and the bottom of the workpiece positioning groove 22, after the needle valve shaft 102 and the rod sleeve 101 are placed in the rear end opening of the front end base 103, the rear end cover 23 for simulation is covered on the peripheries of the needle valve shaft 102 and the rod sleeve 101, so that a simulation use test structure is formed; at least two vertical second guide rods 24 are arranged on the periphery of the workpiece positioning groove 22 on the second working table surface 21, a second upper pressing plate 25 is arranged above the second working table surface 21 in parallel, a second guide sleeve 26 is arranged on the second upper pressing plate 25 corresponding to the second guide rods 24, and the second upper pressing plate 25 is in sliding connection with the second working table surface 21 in the vertical direction through the cooperation of the second guide sleeve 26 and the second guide rods 24; the bottom surface of the second upper pressing plate 25 is provided with a second pressing head assembly 27, the second pressing head assembly 27 comprises a second pressing rod 271 and a displacement sensor 272, the second pressing rod 271 is vertically arranged corresponding to the workpiece positioning groove 22, the second pressing rod 271 is movably arranged in the up-down direction relative to the second upper pressing plate 25, the top end of the second pressing rod 271 is abutted against a detection head of the displacement sensor 272, and the displacement sensor 272 is used for detecting the displacement of the second pressing rod 271 in the up-down direction.
The rear end cover 23 for simulation is identical to the rear end cover 100 of the product, and is a rear end cover 100 to be used as a test part.
The front end cover plate press-fitting device 1 and the rod sleeve press-fitting device 2 are arranged in parallel on a horizontal plane, and a press driving source 3 is arranged above the front end cover plate press-fitting device 1 and the rod sleeve press-fitting device 2; the press driving source 3 is connected with the front end cover sheet press-fitting device 1 and the rod sleeve press-fitting device 2 in a relative motion manner in the horizontal plane direction, so that the press driving source 3 can be connected with the first upper pressing plate 14 of the front end cover sheet press-fitting device 1 and the second upper pressing plate 25 of the rod sleeve press-fitting device 2 in a switching manner.
Referring to fig. 2 specifically, the front end cover plate press-fitting device 1 and the rod sleeve press-fitting device 2 are slidably connected to the frame 4 along a horizontal plane direction through a guide rail 5, a press driving source 3 is fixedly arranged at the top of the frame 4, a power output end of the press driving source 3 downward corresponds to the front end cover plate press-fitting device 1 and the rod sleeve press-fitting device 2, a translation driving device is connected to the front end cover plate press-fitting device 1 and the rod sleeve press-fitting device 2 and drives the front end cover plate press-fitting device 1 and the rod sleeve press-fitting device 2 to translate along the guide rail 5, and a first upper pressing plate 14 of the front end cover plate press-fitting device 1 and a second upper pressing plate 5 of the rod sleeve press-fitting device 2 are switched to be connected with a power output end of the press driving source 3.
The press drive source 3 is preferably a servo-operated cylinder, and other driving means may be used for the actual press drive source 3.
As described above, in practice, the front cover sheet press-fitting device 1 and a lever cover press-fitting device 2 may each include a press driving source, and not share a press driving source, which is also possible, but adds to the cost.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (2)
1. The special water-cooling nozzle assembly machine comprises a rear end cover body (100), a rod sleeve (101), a needle valve shaft (102), a front end seat body (103) and a front end cover sheet (104); the method is characterized in that:
the special water-cooling nozzle assembly machine comprises a front end cover plate press-fitting device (1) and a rod sleeve press-fitting device (2); the front end cover plate press-fitting device (1) is used for finishing the press-fitting process of the front end cover plate (104) and the front end base body (103); the rod sleeve press-fitting device (2) is used for finishing the press-fitting process of the rod sleeve (101) and the front end base body (103);
the front end cover plate press-fitting device (1) comprises a first working table surface (11), and a positioning tool (12) for positioning the front end seat body (103) is arranged on the first working table surface (11); at least two vertical first guide rods (13) are arranged on the periphery of the positioning tool (12) on the first working table surface (11), a first upper pressing plate (14) is arranged above the first working table surface (11) in parallel, a first guide sleeve (15) is arranged on the first upper pressing plate (14) corresponding to the first guide rods (13), and the first upper pressing plate (14) is in sliding connection with the first working table surface (11) in the vertical direction through the cooperation of the first guide sleeve (15) and the first guide rods (13); the bottom surface of the first upper pressing plate (14) is provided with a first pressing head assembly (16), and the first pressing head assembly (16) comprises a spherical seat (161), a fixed cover (162) and a first pressing rod (163); the spherical seat (161) is convexly arranged on the bottom surface of the first upper pressing plate (14), a downward convex spherical surface is arranged on the spherical seat (161), a large-diameter section (1631) is arranged on the upper section of the first pressing rod (163), a matching part is arranged at the top of the large-diameter section (1631) corresponding to the convex spherical surface of the spherical seat (161), and the first pressing rod (163) is matched with the convex spherical surface of the spherical seat (161) through the matching part; the fixed cover (162) is arranged on the large-diameter section (1631) of the first pressing rod (163) and the spherical seat (161) from bottom to top, and the fixed cover (162) is fixedly connected relative to the first upper pressing plate (14); the bottom of the fixed cover (162) is provided with a through hole (1621), and the lower end of the first pressing rod (163) extends downwards through the through hole (1621) of the fixed cover (162);
the rod sleeve press-fitting device (2) comprises a second workbench surface (21), a workpiece positioning groove (22) for placing and positioning the front end base body (103) is formed in the second workbench surface (21), and a rear end cover body (23) for simulation is covered above the workpiece positioning groove (22); in a working state, the front end base body (103) is placed on the workpiece positioning groove (22) with the front end facing downwards, a gap exists between the front end of the front end base body (103) and the groove bottom of the workpiece positioning groove (22), after a needle valve shaft (102) and a rod sleeve (101) are placed in an opening at the rear end of the front end base body (103), the rear end cover body (23) for simulation is covered on the peripheries of the needle valve shaft (102) and the rod sleeve (101), so that a simulation use test structure is formed; at least two vertical second guide rods (24) are arranged on the periphery of the workpiece positioning groove (22) on the second workbench surface (21), a second upper pressing plate (25) is arranged above the second workbench surface (21) in parallel, a second guide sleeve (26) is arranged on the second upper pressing plate (25) corresponding to the second guide rods (24), and the second upper pressing plate (25) is in sliding connection with the second workbench surface (21) in the vertical direction through the cooperation of the second guide sleeve (26) and the second guide rods (24); a second pressure head assembly (27) is arranged on the bottom surface of the second upper pressure plate (25), the second pressure head assembly (27) comprises a second pressure rod (271) and a displacement sensor (272), the second pressure rod (271) is vertically arranged corresponding to the workpiece positioning groove (22), the second pressure rod (271) is movably arranged in the up-down direction relative to the second upper pressure plate (25), the top end of the second pressure rod (271) is abutted against a detection head of the displacement sensor (272), and the displacement sensor (272) is used for detecting the displacement of the second pressure rod (271) in the up-down direction;
the front end cover plate press-fitting device (1) and the rod sleeve press-fitting device (2) are arranged in parallel on a horizontal plane, and a press driving source (3) is arranged above the front end cover plate press-fitting device (1) and the rod sleeve press-fitting device (2); the press driving source (3) is connected with the front end cover sheet press-fitting device (1) and the rod sleeve press-fitting device (2) in a relative motion manner in the horizontal plane direction, so that the press driving source (3) can be connected with the first upper pressing plate (14) of the front end cover sheet press-fitting device (1) and the second upper pressing plate (25) of the rod sleeve press-fitting device (2) in a switching manner.
2. The water-cooled nozzle assembly machine of claim 1, wherein: the press driving source (3) is a servo electric cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711497439.XA CN108213946B (en) | 2017-12-31 | 2017-12-31 | Special water-cooling nozzle assembly machine |
| PCT/CN2018/091968 WO2019128143A1 (en) | 2017-12-31 | 2018-06-20 | Special water cooling nozzle assembling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711497439.XA CN108213946B (en) | 2017-12-31 | 2017-12-31 | Special water-cooling nozzle assembly machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108213946A CN108213946A (en) | 2018-06-29 |
| CN108213946B true CN108213946B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711497439.XA Active CN108213946B (en) | 2017-12-31 | 2017-12-31 | Special water-cooling nozzle assembly machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108213946B (en) |
| WO (1) | WO2019128143A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216451A (en) * | 2019-07-09 | 2019-09-10 | 博众精工科技股份有限公司 | Automatic press mounting mechanism and pressing machine |
| CN110588242A (en) * | 2019-08-15 | 2019-12-20 | 广西汽车集团有限公司 | Bolt press-fitting device of hub unit |
| CN113732671B (en) * | 2021-10-26 | 2023-03-14 | 无锡隆盛科技股份有限公司 | Novel pressure equipment device of natural gas flow nozzle shell |
| CN114392867B (en) * | 2021-12-23 | 2023-09-08 | 陕西法士特齿轮有限责任公司 | Oil seal press-fitting and greasing equipment and method for rear bearing cover of gearbox |
| CN114986142B (en) * | 2022-08-08 | 2022-12-09 | 江苏朗鹏洁净技术有限公司 | Automatic assembling equipment for metal air outlet of clean air shower |
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| CN102528423A (en) * | 2011-12-23 | 2012-07-04 | 江苏日盈电器有限公司 | Nozzle press mounting worktable |
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| Publication number | Publication date |
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| WO2019128143A1 (en) | 2019-07-04 |
| CN108213946A (en) | 2018-06-29 |
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