CN208289369U - A kind of end cap tightening mechanism - Google Patents
A kind of end cap tightening mechanism Download PDFInfo
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- CN208289369U CN208289369U CN201820951610.3U CN201820951610U CN208289369U CN 208289369 U CN208289369 U CN 208289369U CN 201820951610 U CN201820951610 U CN 201820951610U CN 208289369 U CN208289369 U CN 208289369U
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- tighten
- slide
- tightening
- electric rifle
- end cap
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Abstract
A kind of end cap tightening mechanism, including elevating mechanism, body and driving device are tightened, the elevating mechanism includes lifting cylinder, and lifting cylinder described in hanger bracket is fixed on hanger bracket, body is tightened described in the bottom connection of hanger bracket described in hanger bracket, described body tightened for driving and moves up and down；The body of tightening includes rack, at least it is a pair of be fixedly mounted in the rack determine to tighten electric rifle and at least it is a pair of be movably arranged in the rack dynamic tighten electric rifle；The driving device be mounted on it is described tighten on body, driving device includes sliding rail and the slide that is mounted on the sliding rail, it is described it is dynamic tighten electric rifle and be mounted on the slide, slide is connected with displacement cylinder, and the displacement cylinder is for driving the slide mobile.The application drives hanger bracket lifting by lifting cylinder, to realize that tightening machine is gone up and down, the torsional forces that tightening machine generates can't directly act on lifting cylinder, to ensure that the stability and safety of elevating mechanism.
Description
Technical field
The utility model relates to engine assembly field, in particular to a kind of end cap tightening mechanism.
Background technique
During engine assembly, almost all of components are bolted with one or more,
In, the connection between cylinder body and cylinder cap is particularly important, is mainly tightened by bolt and generates pressure uniform, appropriate to cylinder cap cylinder pad
Clamp force with sealing cylinder high temperature high pressure gas, while sealing cooling water, lubricating oil.At this stage cylinder bolt tighten it is main
Operated by tightening machine, due to the bolt that engine cylinder covers all be provided with it is multiple, when tightening, tightening machine need not
It is disconnected to shift one's position to adjust and tighten the job position of rifle to meet the needs of tightening of cylinder bolt, it is bothersome laborious.Therefore, patent is public
It accuses in number patent for being CN207309358U and discloses a kind of servo end cap tightening machine suitable for multi-model, comprising: slide rail group
Part, lifting cylinder, tighten cabinet, an at least bolt tightens electric rifle, driving device and a control device, slide track component and lifting
Cylinder control tightens cabinet in the movement of X-axis, Y-axis and Z axis, and control device is connected with a PLC control system, PLC control system
It is connected with driving device, PLC control system is equipped with the evolution parameter of different type of machines, it can be achieved that bolt tightens electric rifle position sets
Quick and precisely transformation, be suitable for different types of machines Flexible production.However, the size due to cylinder bolt is larger, can be produced when tightening
Raw biggish tightening torque only tightens cabinet by lifting cylinder suspension so that certain torsional forces can also be generated by tightening cabinet,
Torsional forces can directly act on the cylinder rod of lifting cylinder, be easy to cause cylinder rod to bent the accuracy for influencing tightening operation, very
The danger that tightening machine falls off may extremely occur, it is difficult to ensure that the stability and safety of elevating mechanism.
Utility model content
The utility model is in view of the above-mentioned problems of the prior art, provide a kind of end cap tightening mechanism.
In order to achieve the above purpose, the utility model uses following technical measures:
A kind of end cap tightening mechanism, including elevating mechanism, tighten body and driving device, the elevating mechanism includes rising
Sending down abnormally ascending cylinder, the lifting cylinder are fixed on hanger bracket, body are tightened described in the bottom connection of the hanger bracket, for driving
It states and tightens body and move up and down；
The body of tightening includes rack, and at least a pair of be fixedly mounted in the rack determines to tighten electric rifle and at least
What a pair was movably arranged in the rack dynamic tightens electric rifle；
The driving device is tightened on body described in being mounted on, and driving device includes sliding rail and is mounted on the sliding rail
Slide, it is described it is dynamic tighten electric rifle and be mounted on the slide, slide is connected with displacement cylinder, and the displacement cylinder is for driving
The slide is mobile.
Preferably, the hanger bracket includes upper frame, is connected to the support column of upper frame lower end, and it is connected to the support
The support plate of column lower end, the lifting cylinder are fixedly mounted in the support plate, and the cylinder rod of lifting cylinder penetrates through described
Support plate is simultaneously connected with lifter plate, several sets are equipped in the support plate, and correspondence is equipped with several liters on lifter plate
Column drops, several described lifting columns are respectively protruding into several described cylinder sets, connecting plate are connected with below the lifter plate, even
Body is tightened described in the bottom connection of fishplate bar.
Preferably, the two sides of the hanger bracket are respectively connected with balancer, the suspension hook end connection of the balancer is described to be twisted
Tight body.
Preferably, at least two fixed shaft holes are offered in the middle part of the bottom plate of the rack, it is described to tighten electric rifle installation surely
On the fixed shaft hole, the two sides of fixed shaft hole offer at least one strip sliding slot respectively, and described move tightens electric rifle
Tightening axle stretches out the strip sliding slot.
Electric rifle is tightened surely be provided with a pair, preferably, described there are two fixed shaft hole is correspondingly arranged.
Preferably, there are two slide, two slides are separately positioned on described tightens electricity surely for installation on the sliding rail
The two sides of rifle, be mounted on two slides two pairs it is described it is dynamic tighten electric rifle, and dynamic on slide described in two groups tightens electricity
The arc-shaped arrangement of rifle.
Preferably, the two sides of the rack are symmetrically arranged with hydraulic bjuffer, the piston rod of the hydraulic bjuffer with
The sliding rail is parallel, and the side of the slide is arranged in the piston rod of hydraulic bjuffer, for limiting the sliding of the slide
Distance.
Preferably, the side of the rack is provided with left handle and right handles, the left handle, right handles are equipped with three
Position five-way electromagnetic valve, for adjusting the rise and fall for tightening body.
Preferably, the bottom of the connecting plate is connected with floating junction, the connecting plate is solid by the floating junction
Body is tightened described in fixed connection.
Preferably, the sliding rail is mounted on the two sides of the strip sliding slot, the slide is installed by the sliding rail
Above strip sliding slot.
The utility model has the beneficial effects that:
1, it compared to traditional tightening machine, is equipped in the rack of the application and at least a pair of tightens electric rifle and at least one surely
Tighten electric rifle to dynamic, the position to tighten electric rifle operation surely as tightening surely a little, move tighten electric rifle can under the drive of slide to
Surely it is mobile that a two sides are tightened, can repeatedly tighten work by repeatedly adjusting to move to tighten electric rifle and tighten the distance between electric rifle satisfaction surely
Industry needs, effective working efficiency for improving cylinder cap and tightening, and without controlled by slide track component tighten cabinet X-axis, Y-axis and
The movement of Z axis, precision are high.
2, for the application compared with traditional suspension lifting mode, lifting cylinder is fixed on hanger bracket, passes through lifting air
Cylinder drives hanger bracket lifting, to realize that tightening machine is gone up and down, the torsional forces that tightening machine generates can't directly act on lifting air
Cylinder tightens the accuracy of body operation and the stability of elevating mechanism and safety to ensure that.
3, the dynamic evolution for tightening electric rifle of the application relies primarily on displacement cylinder and drives the mobile realization of slide, compared to
The structure of traditional screw rod transmission, the application is more simple, and related functional component is less, can effectively reduce the life of tightening machine
Cost is produced, and is suitable for the screw-driving of different screw pitch, different pitch screws can be tightened simultaneously by not needing replacement accessory, be fitted
Answer range wide.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model end cap tightening mechanism；
Fig. 2 is the front view of the utility model end cap tightening mechanism；
Fig. 3 is the bottom view of the utility model end cap tightening mechanism；
Fig. 4 is the top view of the utility model end cap tightening mechanism.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
- Fig. 2 refering to fig. 1, a kind of end cap tightening mechanism, including elevating mechanism 1, tighten body 2 and driving device 3, institute
Stating elevating mechanism 1 includes lifting cylinder 11, and the lifting cylinder 11 is fixed on hanger bracket 12, and the bottom of the hanger bracket 12 connects
Connect it is described tighten body 2, the hanger bracket 12 described tightened body 2 and is moved up and down for driving；The body 2 of tightening includes machine
Frame 21, at least it is a pair of be fixedly mounted in the rack determine to tighten electric rifle 22 and at least a pair is movably arranged on the rack
Dynamic on 21 tightens electric rifle 23；The driving device 3 be mounted on it is described tighten on body 2, driving device 3 include sliding rail 31 and
The slide 32 being mounted on the sliding rail 31, it is described it is dynamic tighten electric rifle 23 and be mounted on the slide 32, slide 32 is connected with change
Away from cylinder 33, the displacement cylinder 33 is for driving the slide 32 mobile.
With reference to Fig. 1, Fig. 2, Fig. 4, in the present embodiment, the hanger bracket 12 includes upper frame 121, is connected under upper frame 121
The support column 122 at end, and it is connected to the support plate 123 of 122 lower end of support column, the lifting cylinder 11 is fixedly mounted on
In the support plate 123, the cylinder rod of lifting cylinder 11 penetrates through the support plate 123 and is connected with lifter plate 124, the branch
Several sets 125 are installed, correspondence is equipped with several lifting columns 126 on lifter plate 124, described in several on fagging 123
Lifting column 126 is respectively protruding into several described cylinder sets 125, and the effect of lifting column 126 is to limit the lifting of the hanger bracket 12
Direction, dispersion tighten body 2 to the torsional forces of lifting cylinder 11, can prevent from described tightening generated torque when 2 operation of body
Power all acts on cylinder rod, and cylinder rod is caused to bent or tighten the offset of body 2, influences described to tighten the accurate of 2 operation of body
Property；The lower section of the lifter plate 124 is connected with connecting plate 127, tightens body 2 described in the bottom connection of connecting plate 127.As this
The preferred embodiment of embodiment is to be respectively welded at 121 lower end of upper frame, and pass through bolt there are four the support column 122 is set
It is fixedly connected with the support plate 123；The cylinder set 125 is symmetricly set on 11 two sides of lifting cylinder there are four setting two-by-two
On lifter plate 124, the lifting column 126 is also correspondingly provided with four, and four lifting columns 126 are respectively protruding into four sleeves
125, it is vertically fixedly mounted on the connecting plate 127 there are four connecting column 128, the connecting plate 127 passes through four connecting columns 128
It is fixedly connected with the lifter plate 124；The bottom of the connecting plate 127 is connected with floating junction 7, and the connecting plate 127 passes through institute
It states floating junction 7 and is fixedly connected and described tighten body 2.
When tightening body 2 described in control and going up and down, the cylinder rod of lifting cylinder 11 will drive the lifter plate 124 rise or under
Drop, to realize the rise and fall for tightening body 2 described in drive, when the lifter plate 124 rises or falls, the lifting column
126 also rise or fall in cylinder set 125, can prevent from tightening the offset of 2 stress of body, it is ensured that tighten body 2 and tighten work
The accuracy of industry.
More preferably, the two sides of the hanger bracket 12 are respectively connected with balancer (not shown), the balancer (not shown)
Body 2 is tightened described in the connection of suspension hook end.The balancer (not shown) can be suspended on the hanging ring of 121 two sides of upper frame, be put down
The suspension hook end of weighing apparatus (not shown) is connected on the lifting hole(eyelet) of the top plate two sides of the rack 21, passes through the balancer (not shown)
To it is described tighten body 2 apply pulling force with balance it is described tighten body 2 to the gravity of elevating mechanism 1, may make elevator
In static or lifting process, lifting cylinder 11 is not influenced structure 1 by the gravity for tightening body 2, can also prevent from tightening body 2 by
It falls off from elevating mechanism 1 to the collective effect of gravity and torsional forces, to ensure that the operational safety and use of equipment
Stability.
In more detail, with reference to Fig. 1, Fig. 3, the bottom plate middle part of the rack 21 offers at least two fixed shaft holes 211, institute
It states and tightens electric rifle 22 surely and be mounted on the fixed shaft hole 211, the tightening axle for tightening electric rifle 22 surely stretches out the fixing axle
Hole 211, the two sides of fixed shaft hole 211 offer at least one strip sliding slot 212 respectively, and described move tightens tightening for electric rifle 23
Axis stretches out the strip sliding slot 212.In the present embodiment, described to tighten electric rifle 22 surely and be provided with a pair, fixed shaft hole 211 is right
There are two should being arranged.Installation is there are two slide 32 on the sliding rail 31, and two slides 32 are separately positioned on described to be tightened surely
The two sides of electric rifle 22, be mounted on two slides 32 two pairs it is described it is dynamic tighten electric rifle 23, and on slide 32 described in two groups
Dynamic tighten the arc-shaped arrangement of electric rifle 23.To tighten the position of electric 22 operation of rifle surely as tightening surely a little, it is dynamic tighten electric rifle 23 can
It is mobile to two sides are tightened surely under the drive of slide 32, can by repeatedly adjust it is dynamic tighten electric rifle 23 with tighten surely electric rifle 22 it
Between distance meet multiple tightening operation needs, the working efficiency that cylinder cap is tightened can be effectively improved, moreover, arc-like rows cloth setting
It is dynamic tighten that electric rifle 23 can meet automobile c-type distribution cylinder bolt tighten requirements, by adjusting the arrangement position for tightening electric rifle 23 is moved
Set the specification requirement that can meet various cylinder bolts with quantity.
The sliding rail 31 is mounted on the two sides of the strip sliding slot 212, and the slide 32 is installed by the sliding rail 31
Above strip sliding slot 212.The two sides of the rack 21 are symmetrically arranged with hydraulic bjuffer 4, the work of the hydraulic bjuffer 4
Stopper rod is parallel with the sliding rail 31, and the side of the slide 32 is arranged in the piston rod of hydraulic bjuffer 4, described for limiting
The sliding distance of slide 32.In the present embodiment, it there are four the hydraulic bjuffer 4 is set, is symmetrical arranged two-by-two, it is described hydraulic slow
It rushes device 4 to be mounted by means of bolts on L-type iron plate 41, the L-type iron plate 41 is connected by the bottom of bolt and the rack 21
It connects, the hydraulic bjuffer 4 is fixedly mounted to the rack 21 of 32 side of slide, when the slide 32 drives described move to tighten
When electric rifle 23 is slided to far from 212 end of strip sliding slot for tightening electric 22 side of rifle surely, the piston of hydraulic bjuffer 4
Bar can contradict and prevent from slide 32 from continuing sliding in the side of the slide 32 causing described in the dynamic tightening axle collision for tightening electric rifle 23
212 inner wall of end of strip sliding slot can extend the dynamic service life for tightening electric rifle 23.
The side of the rack 21 is provided with left handle 5 and right handles 6, and the left handle 5, right handles 6 are equipped with three
Five-way electromagnetic valve, for adjusting the rise and fall for tightening body 2.3 position-5 way on the left handle 5, right handles 6
Solenoid valve is connected with PLC control system, and PLC control system record has the location parameter for needing to go up and down for different engines, leads to
Cross control left handle 5, the 3 position-5 way solenoid valve in right handles 6 realizes the rise and fall that body 2 is tightened described in the adjustment.
In addition, tightening body 2, driving device 3 is connected with control device (not shown), control device (not shown) and PLC
Control system is connected, PLC control system tightened with displacement cylinder 33, surely electric rifle 22 and it is dynamic tighten electric rifle 23 and be connected, the PLC is controlled
System processed is common control system, and driving device 3 can be controlled respectively by the PLC control system tightens electric rifle 22 surely and move
Electric 23 start and stop of rifle are tightened, and are equipped with the location parameter for needing to convert for different engines in PLC control system, by described
PLC control system also can control the flexible of the displacement cylinder 33 and realize the dynamic job position for tightening electric rifle 23 of transformation.
Working principle: the original state of equipment be two displacement cylinders 33, lifting cylinder 11 cylinder rod be in it is contraction-like
State first passes through the cylinder rod elongation that left handle 5 controls the lifting cylinder 11, will tighten body 2 when producing certain engine
Drop to proper height, then tightens electric rifle 22 surely by the control of control device (not shown) and move and tighten electric rifle 23 while opening
It is dynamic, tighten ten cylinder bolts among engine；
After torque reaches setting value, control top, which is tightened electric rifle 22 and moved, tightens the electric stopping of rifle 23, then is controlled by right handles 6
The cylinder rod for making the lifting cylinder 11 shortens, and will tighten body 2 and rises to proper height, starting control device (not shown) into
Row first time displacement, the PLC control system parameter that will shift one's position are transmitted to displacement cylinder 33, and displacement cylinder 33 drives slide 32 to move
Dynamic, slide 32 drives the dynamic of two sides to tighten electric rifle 23 and carry out displacement simultaneously, and after the completion of displacement, operator controls left handle 5 again
Control is tightened body 2 and is fallen into place, and starting is dynamic to tighten electric 23 operation of rifle (tightening the electric no longer operation of rifle 22 surely at this time), until second
Secondary tightening operation is completed.Operator repeats the behaviour that the step carries out second of displacement, third time displacement ... n-th displacement
Make, until completing the tightening operation of entire engine, body 2 will be tightened and restored to original state, adding for next product is waited
Work.
In conclusion compared to traditional tightening machine, be equipped in the rack of the application it is at least a pair of tighten surely electric rifle with
And at least two pairs it is dynamic tighten electric rifle, the position to tighten electric rifle operation surely as tightening surely a little, move tighten electric rifle can be in slide
It is mobile to two sides are tightened surely under drive, can by repeatedly adjust it is dynamic tighten electric rifle with tighten surely the distance between electric rifle meet it is more
Secondary tightening operation needs, effective to improve the working efficiency and adaptation range that cylinder cap is tightened, and lifting cylinder be fixed on it is outstanding
On hanger, hanger bracket lifting is driven by lifting cylinder, to realize that tightening machine is gone up and down, the torsional forces that tightening machine generates can't
Lifting cylinder is directly acted on, to ensure that the accuracy of tightening machine operation and the stability of elevating mechanism, safety.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of end cap tightening mechanism, including elevating mechanism (1), tighten body (2) and driving device (3), which is characterized in that
The elevating mechanism (1) includes lifting cylinder (11), and the lifting cylinder (11) is fixed on hanger bracket (12), the hanger bracket
(12) body (2) are tightened described in bottom connection, described body (2) tightened for driving and moves up and down；
The body (2) of tightening includes rack (21), and at least a pair of be fixedly mounted in the rack determines to tighten electric rifle (22)
And at least a pair be movably arranged on the rack (21) dynamic tighten electric rifle (23)；
The driving device (3) is tightened on body (2) described in being mounted on, and driving device (3) includes sliding rail (31) and is mounted on
Slide (32) on the sliding rail (31), it is described it is dynamic tighten electric rifle (23) and be mounted on the slide (32), slide (32) connection
Have displacement cylinder (33), the displacement cylinder (33) is for driving the slide (32) mobile.
2. end cap tightening mechanism according to claim 1, which is characterized in that the hanger bracket (12) include upper frame (121),
It is connected to the support column (122) of upper frame (121) lower end, and is connected to the support plate (123) of the support column (122) lower end,
The lifting cylinder (11) is fixedly mounted on the support plate (123), and the cylinder rod of lifting cylinder (11) penetrates through the branch
Fagging (123) is simultaneously connected with lifter plate (124), several sets (125), lifter plate are equipped on the support plate (123)
(124) correspondence is equipped with several lifting columns (126) on, several described lifting columns (126) are respectively protruding into several cylinders
It covers in (125), is connected with connecting plate (127) below the lifter plate (124), the bottom connection of connecting plate (127) is described to twist
Tight body (2).
3. end cap tightening mechanism according to claim 1 or 2, which is characterized in that the two sides of the hanger bracket (12) connect
It is connected to balancer, tightens body (2) described in the suspension hook end connection of the balancer.
4. end cap tightening mechanism according to claim 1, which is characterized in that offered in the middle part of the bottom plate of the rack (21)
At least two fixed shaft holes (211), the electric rifle (22) of tightening surely are mounted on the fixed shaft hole (211), fixed shaft hole
(211) two sides offer at least one strip sliding slot (212) respectively, and the dynamic tightening axle for tightening electric rifle (23) stretches out institute
State strip sliding slot (212).
5. end cap tightening mechanism according to claim 4, which is characterized in that the electric rifle (22) of tightening surely is provided with one
It is right, there are two fixed shaft hole (211) is correspondingly arranged.
6. end cap tightening mechanism according to claim 1, which is characterized in that there are two slides for installation on the sliding rail (31)
(32), two slides (32) are separately positioned on the two sides for tightening electric rifle (22) surely, on two slides (32)
Be equipped with two pairs it is described it is dynamic tighten electric rifle (23), and dynamic on slide described in two groups (32) tightens electric rifle (23) arc-shaped arrangement.
7. end cap tightening mechanism according to claim 1, which is characterized in that the two sides of the rack (21) are symmetrically arranged with
The piston rod of hydraulic bjuffer (4), the hydraulic bjuffer (4) is parallel with the sliding rail (31), and the work of hydraulic bjuffer (4)
Stopper rod is arranged in the side of the slide (32), for limiting the sliding distance of the slide (32).
8. end cap tightening mechanism according to claim 1, which is characterized in that the side of the rack (21) is provided with left hand
Handle (5) and right handles (6), the left handle (5), right handles (6) are equipped with 3 position-5 way solenoid valve, for adjusting described tighten
The rise and fall of body.
9. end cap tightening mechanism according to claim 2, which is characterized in that the bottom of the connecting plate (127) is connected with
Floating junction (7), the connecting plate (127) are fixedly connected by the floating junction (7) and described tighten body (2).
10. end cap tightening mechanism according to claim 4, which is characterized in that the sliding rail (31) is mounted on the strip
The two sides of shape sliding slot (212), the slide (32) are mounted on above strip sliding slot (212) by the sliding rail (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820951610.3U CN208289369U (en) | 2018-06-20 | 2018-06-20 | A kind of end cap tightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820951610.3U CN208289369U (en) | 2018-06-20 | 2018-06-20 | A kind of end cap tightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208289369U true CN208289369U (en) | 2018-12-28 |
Family
ID=64702501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820951610.3U Active CN208289369U (en) | 2018-06-20 | 2018-06-20 | A kind of end cap tightening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208289369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940372A (en) * | 2019-04-30 | 2019-06-28 | 河南华洋发动机制造股份有限公司 | Engine cylinder cover screw automatic screwing device |
| CN116276799A (en) * | 2023-04-20 | 2023-06-23 | 顺达模具科技有限公司 | Clutch cover body press-fitting device |
-
2018
- 2018-06-20 CN CN201820951610.3U patent/CN208289369U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940372A (en) * | 2019-04-30 | 2019-06-28 | 河南华洋发动机制造股份有限公司 | Engine cylinder cover screw automatic screwing device |
| CN109940372B (en) * | 2019-04-30 | 2024-04-26 | 深圳市弼辅机器人有限公司 | Automatic screwing machine for engine cylinder cover screw |
| CN116276799A (en) * | 2023-04-20 | 2023-06-23 | 顺达模具科技有限公司 | Clutch cover body press-fitting device |
| CN116276799B (en) * | 2023-04-20 | 2024-01-30 | 顺达模具科技有限公司 | Clutch cover body press-fitting device |
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