CN105479150A - Wheel drum bolt automatic press mounting machine, pressing head device and pressing plate thereof - Google Patents
Wheel drum bolt automatic press mounting machine, pressing head device and pressing plate thereof Download PDFInfo
- Publication number
- CN105479150A CN105479150A CN201610051238.6A CN201610051238A CN105479150A CN 105479150 A CN105479150 A CN 105479150A CN 201610051238 A CN201610051238 A CN 201610051238A CN 105479150 A CN105479150 A CN 105479150A
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- CN
- China
- Prior art keywords
- seat board
- floating platen
- pressing plate
- convex surface
- concave surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B23P19/04—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 assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/069—Multi-spindle machines
Abstract
The invention relates to a pressing plate of a wheel drum bolt automatic press mounting machine. The pressing plate comprises a base plate and a floating pressing plate, wherein the floating pressing plate is arranged below the base plate; a spherical-crown-shaped concave surface or convex surface is arranged at the lower part of the base plate; a convex surface or concave surface of which the shape coincides with that of the concave surface or convex surface at the lower part of the base plate is arranged on the floating pressing plate; the base plate and the floating pressing plate are in contact with each other only through the concave surface and the convex surface, and the other parts of the floating pressing plate are separated from the base plate, so that when the press mounting machine presses downwards, the floating pressing plate can freely swing relative to the base plate through the concave surface and the convex surface which are in contact with each other; spherical heads which are matched with wheel drum bolts needing to be tightly pressed in position are arranged on the periphery of the floating pressing plate. By combining the machine with the corresponding tooling of the equipment, the assembly work of wheel drum bolts can be completed within a short time, the labor intensity of workers can be reduced, and the assembly period of wheel drums can also be shortened at the same time.
Description
Technical field
The present invention relates to mechanical manufacturing field, specifically a kind of wheel hub fabricating tools.
Background technology
Wheel hub bolt pressing machine makes to add a larger pressure by the bolt be fitted in advance on wheel hub preformer makes bolt move through excess pressure, is fitted in the fixing hole of wheel hub, achieves screw and be connected with wheel hub interference fit.
Wheel hub bolt pressing machine has of many uses, and production efficiency high can be widely used in the bolts assemblies techniques such as automotive hub, engine, diesel engine.Wheel hub bolt pressing machine generally includes support, base and pressure head, and pressure head comprises pressing plate, pressure head body and depression bar, and the hydraulic cylinder that pressure head is arranged on pressing machine top moves up and down, and realizes compression and the homing action of pressure head.Hydraulic cylinder provides pressure to make the depression bar below pressure head compress boss bolt.
What existing wheel hub bolt pressing machine had takes the rotation of single depression bar to compress each bolt in turn, and such pressing machine efficiency is low, and the compression of single-piece wheel hub screw needs repeatedly the repetitive operation of pressure head.Some pressing machine adopts multiple depression bar integrally to press down, once can press-fit the bolt of whole wheel hub, but the length due to each bolt of wheel hub has difference a little, and each depression bar height of wheel hub bolt pressing machine is identical, when integrally pressing down, larger pressure can be applied to longer bolt, cause the pressure of each bolt unequal.Therefore strong to the reliability of boss bolt compression, compress not in place.
The brick machine had in prior art, by independent for each depression bar connecting fluid cylinder pressure, adjusts pressure by sensor, and such scheme hydraulic system cost is higher, and the installing space that equipment is installed needs to leave larger Hydraulic Station is connected with pipeline.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of automatic press mounting machine pressing plate, and use pressing machine and the indenter device of this pressing plate, when such pressing machine can ensure that each bolt length on wheel hub is different, timely adjustment depression bar is applied to the pressure on bolt, realizes each bolt uniform-compression.
Wheel hub bolt automatic press mounting machine pressing plate of the present invention, comprise seat board and floating platen, described floating platen is arranged on below seat board, described seat board bottom is provided with concave surface or the convex surface of spherical crown shape, described floating platen is provided with the convex surface or concave surface that match with the concave of described seat board bottom, only by concave surface and convex surface joint, other position is separated with seat board for seat board and floating platen, when pressing machine is pressed down, floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface, described floating platen periphery arranges the bulb matched with the boss bolt position of required compression.
When the height of boss bolt is different, bulb on floating platen can be subject to different active forces, and floating platen is rotated relative to fixing seat board, adjusts the pressure of each bulb to depression bar and bolt, the pressure differential that each bolt is subject to diminishes, and compression degree can not differ too large.
Improve as one, described bulb is matched between two and to be connected by float top board, and described floating platen is fixedly installed ram shaft, and described float top board is arranged in ram shaft by the hole on float top board is rotating.
Float top board and ram shaft matched in clearance, float top board can rotate around ram shaft, when bolt height below the bulb at float top board two ends is one high and one low, two bulbs can by the rotation adjustment height of float top board, thus make two bulbs substantially identical to the pressure of bolt, if the bolt below two bulbs is all high compared with other bolts, pressure is then delivered to other bulbs by ram shaft, ram shaft can be raised, the height of two bulbs all can improve, thus the pressure that two bolts are received all is reduced to average level.
Improve as one, when the number of described bulb is odd number, a remaining bulb is directly fixedly connected with floating platen.
Improve as one, described floating platen is suspended in below seat board, and floating platen can be moved up and down with seat board.
Improve as one, described floating platen to be suspended in below seat board by Flexible Connector and to abut on seat board, freely rotates when pressing machine presses down by the concave surface of joint and convex surface relative to seat board.
If floating platen and seat board stay apertured words, move downward touch boss bolt in a flash at indenter device, floating platen and seat board can impact damage.
Improve as one, described seat board and floating platen arrange corresponding through hole, and described Flexible Connector is through being the bolt stating through hole, arranges spring between described bolt lower end and floating platen.
Seat board is connected by being with the bolt of spring with floating platen, floating platen can be lifted on the below of seat board, move with seat board, floating platen can be close on seat board by the pressure of spring, but the contact between floating platen and seat board is unlikely to again too tight, makes floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface.
Improve as one, the lower surface of described bulb is sphere.When bolt height below the bulb at float top board two ends is one high and one low, two bulbs can by the rotation adjustment height of float top board, and bulb can roll in depression bar upper end and adjust contact point.
Improve as one, the upper surface of described bulb is sphere, above described bulb, seat board arranges limited post.
The invention still further relates to the wheel hub bolt automatic press mounting machine indenter device using above-mentioned pressing plate, comprise pressing plate, pressure head body and depression bar, described pressure head body is connected on seat board, and described depression bar is arranged on pressure head body; Described pressing plate comprises seat board and floating platen, described floating platen is arranged on below seat board, described seat board bottom is provided with the concave surface of spherical crown shape, described floating platen is provided with the convex surface matched with concave, only by concave surface and convex surface joint, other position is separated with seat board for seat board and floating platen, when pressing machine is pressed down, floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface, and described floating platen periphery arranges the bulb matched with the boss bolt position of required compression.
The invention still further relates to a kind of wheel hub bolt automatic press mounting machine using above-mentioned pressing plate, comprise support, base and indenter device, described indenter device comprises pressing plate, pressure head body and depression bar, and described pressure head body is connected on seat board, and described depression bar is arranged on pressure head body; Described pressing plate comprises seat board and floating platen, described floating platen is arranged on below seat board, described seat board bottom is provided with the concave surface of spherical crown shape, described floating platen is provided with the convex surface matched with concave, only by concave surface and convex surface joint, other position is separated with seat board for seat board and floating platen, when pressing machine is pressed down, floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface, and described floating platen periphery arranges the bulb matched with the boss bolt position of required compression.
By in conjunction with the corresponding frock of this equipment, workman can complete the assembly work of boss bolt at short notice, alleviates the labour intensity of workman, shortens wheel hub assembly period simultaneously.In addition, in wheel hub assembly work, by the precompressed process of preformer to boss bolt, greatly can improve the qualification rate that bolt press press-fits process.In actual compaction process, because the movement of each bulb can have influence on the position of other balls pressure head, when such rigging screw is highly inconsistent, its structure adopt bulb globoidal structure, etc. axial length linkage, cambered surface contact hold-down mechanism organic cooperation, achieve the automatic adjustment of the position in many ways in adjustable extent of multiple float top board, ensure the force balance of each bulb in compaction process, once compress, the function perfection that multiple screw puts in place simultaneously realizes.In addition, due to the connecting rod swing adopted, so when design head contact surface, the unified arc surface that have employed contacts compression, effectively prevents pressure head loose contact and stuck phenomenon.Due to moving up and down of pressure head component, whole indenter device is not in employing hydraulic system.Decrease the in disorder to the impact of equipment appearance of fluid pressure line.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of wheel hub bolt automatic press mounting machine of the present invention.
Fig. 2 is the side structure schematic diagram that the present invention takes turns indenter device.
Fig. 3 is the upward view that the present invention takes turns indenter device.
Fig. 4 is the top view that the present invention takes turns indenter device.
Fig. 5 is the sectional view along C-C line in Fig. 2.
Fig. 6 is the sectional stretch-out view along A-A line in Fig. 4.
Fig. 7 analyses and observe rotation diagram along B-B line in Fig. 4.
Detailed description of the invention
As shown in Figures 1 to 7, wheel hub bolt automatic press mounting machine of the present invention comprises support 51, hydraulic cylinder 52, the base 54 placing wheel hub 53 and the indenter device 55 be connected on hydraulic cylinder 52.
Indenter device 55 comprises pressing plate, pressure head body 34 and depression bar 13.Indenter device 55 is arranged on the hydraulic cylinder 52 on pressing machine top, can move up and down with hydraulic cylinder 52, realizes compression and the homing action of indenter device 55.Hydraulic cylinder 52 provides pressure to make indenter device 55 compress boss bolt 56.
Pressing plate comprises seat board 2 and floating platen 1, floating platen 1 is arranged on below seat board 2, seat board 2 bottom is provided with the concave surface 5 of spherical crown shape, floating platen 1 is provided with the convex surface 7 matched with concave surface 5 shape, seat board 2 and floating platen 1 only by concave surface 5 with convex surface 7 joint and other position is separated with seat board 2, when pressing machine is pressed down, floating platen 1 can be freely swung relative to seat board 2 by the concave surface 5 of joint and convex surface 7, floating platen 1 periphery arranges the bulb 33 matched with the boss bolt position of required compression, the boss bolt compressed is needed to be 5 in the present embodiment, corresponding bulb arranges 5.Concave surface 5 can be that the upper circular slab 3 be fixedly mounted on seat board 2 by screw is formed, upper circular slab 3 is arranged the concave surface 5 of spherical, convex surface 7 can be that the lower circular slab 4 be fixedly mounted on floating platen 1 by screw is formed, lower circular slab 4 is arranged the convex surface 7 of spherical, upper and lower circular slab has certain thickness, and when floating platen 1 is swung relative to seat board 2, edge can not be touched mutually.
Certainly, concave surface also can be arranged on floating platen 1, and corresponding convex surface is arranged on seat board 2, as long as floating platen 1 seat board 2 can be made to be free to opposing oscillatory.
When the height of boss bolt is different, bulb 33 on floating platen 1 can be subject to different active forces, floating platen 1 is rotated relative to fixing seat board 2, adjust the pressure of 5 bulbs, 33 pairs of depression bars 13 and bolt, the pressure differential that each bolt is subject to diminishes, and compression degree can not differ too large.
In order to increase the free degree of bulb further, 4 in 5 bulbs are matched between two, connected by float top board 15, floating platen 1 is fixedly installed ram shaft 10, float top board 15 is arranged in ram shaft 10 by the hole on float top board 15 is rotating, and a remaining bulb 33a is directly fixedly connected with floating platen 1.
Float top board 15 and ram shaft 10 matched in clearance, float top board 15 can rotate around ram shaft 10, when boss bolt height below the bulb 33 at float top board 15 two ends is one high and one low, two bulbs 33 can by the rotation adjustment height of float top board 15, thus make the pressure of two bulbs, 33 pairs of boss bolts substantially identical, if the boss bolt below two bulbs 33 is all high compared with other boss bolts, pressure is then delivered to other bulbs 33 by ram shaft 10, ram shaft 15 can be raised, the height of two bulbs 33 all can improve, thus the pressure making two boss bolts receive all is reduced to average level.
When the number of described bulb is even number, just can matches completely between two and not remain.
During bulb pairing, the selection of the best is that two adjacent bulb float top boards 10 connect, and non-conterminous two bulb float top boards 10 also can be selected to connect, and the structure of such float top board needs the below being arranged on floating platen 1 as the case may be.
Floating platen 1 can be separated with seat board 2, also floating platen 1 can be suspended in below seat board 2, and floating platen 1 can be moved up and down with seat board 2.If floating platen 1 and seat board 2 stay apertured words, move downward touch boss bolt in a flash at indenter device, floating platen 1 and seat board 2 can impact and damage.
In order to address this problem, floating platen 1 to be suspended in below seat board 2 by Flexible Connector and to abut on seat board 2, freely rotates when pressing machine presses down by the concave surface of joint and convex surface relative to seat board 2.The T-shaped bolt 6 of Flexible Connector select tape spring, seat board 2 and floating platen 1 arrange corresponding through hole 61, and T-shaped bolt 6 is through through hole 61, and the diameter of through hole 61 is enough large, when making floating platen relative to seat board 2 opposing oscillatory, T-shaped bolt 6 can not cause obstacle.The below of floating platen 1 is arranged on counterbore, arranges disc spring seat 32 and butterfly spring 31 in counterbore, installs gasket ring 28 and Ball faced nut 26.T-shaped bolt 6 is preferably arranged on the central authorities of floating platen 1 and seat board 2, can certainly be arranged on other positions, can arrange multiplely also can arrange 1.Flexible Connector also can be other modes, is such as connected to the spring on seat board 2 and floating platen 1.Flexible Connector also can be arranged on pressure head body 34, is provided support by pressure head body 34, thus floating platen 1 is adjacent on seat board 2.
Seat board 2 is connected with the T-shaped bolt 6 of floating platen 1 by band disk spring 31, floating platen 1 can be lifted on the below of seat board 2, move with seat board 2, floating platen 1 can be close on seat board 2 by the pressure of disk spring 31, but the contact between floating platen 1 and seat board 2 is unlikely to again too tight, makes floating platen 1 can be freely swung relative to seat board 2 by the concave surface 7 of joint and convex surface 5.
The lower surface of bulb 33 is sphere.When boss bolt height below the bulb 33 at float top board 1 two ends is one high and one low, two bulbs 33 can by the rotation adjustment height of float top board 1, and bulb 33 can roll in depression bar 13 upper end and adjust contact point.The upper surface of bulb is also set to sphere, seat board is arranged limited post 41 above bulb.The collision that limited post 41 can prevent bulb 33 and seat board 2 is set.
Pressing machine also comprises directly and the depression bar 13 of boss bolt joint, depression bar 13 is mobilizable to be arranged on pressure head body 34, pressure head body 34 is fixedly connected on the outer of seat board 2, pressure head body 34 lower end fixed installation support portion 34a, support portion 34a arranges the installing hole mated with depression bar 13, arranges without oily lining 18 in installing hole.Arrange spring 16 and spring base 11 above and below the 34a of support portion respectively, each spring base 11 is divided into inside and outside two parts, and depression bar 13 is fixedly installed back-up ring 12 respectively in the outside of upper and lower two spring bases 11.Depression bar 13 is under the restriction of back-up ring 12, and scope of activities is defined, and the stroke of its up and down scope and boss bolt matches, and spring 16 can ensure that depression bar 13 presses down at indenter device and presses down and self-return in the process that rises.Certainly, above-mentioned spring 16 and spring base 11 and corresponding back-up ring 12 be only arranged on the upside of support portion 34a or downside either side can, but both sides all arrange better effects if.
Depression bar 13 arranges stopping means on the position of support portion 34a, and stopping means comprises locating flange 21 and dog screw 19, and spacing flange 21 is fixed by screws on the 34a of support portion.
The bottom of depression bar 13 arranges the top 40 matched with boss bolt.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a wheel hub bolt automatic press mounting machine pressing plate, it is characterized in that: comprise seat board and floating platen, described floating platen is arranged on below seat board, described seat board bottom is provided with concave surface or the convex surface of spherical crown shape, described floating platen is provided with the convex surface or concave surface that match with the concave of described seat board bottom, only by concave surface and convex surface joint, other position is separated with seat board for seat board and floating platen, when pressing machine is pressed down, floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface, described floating platen periphery arranges the bulb matched with the boss bolt position of required compression.
2. according to wheel hub bolt automatic press mounting machine pressing plate according to claim 1, it is characterized in that: described bulb is matched between two and to be connected by float top board, described floating platen is fixedly installed ram shaft, and described float top board is arranged in ram shaft by the hole on float top board is rotating.
3. according to wheel hub bolt automatic press mounting machine pressing plate according to claim 2, it is characterized in that: when the number of described bulb is odd number, a remaining bulb is directly fixedly connected with floating platen.
4., according to the wheel hub bolt automatic press mounting machine pressing plate described in claim 1,2 or 3, it is characterized in that: described floating platen is suspended in below seat board, floating platen can be moved up and down with seat board.
5. according to wheel hub bolt automatic press mounting machine pressing plate according to claim 4, it is characterized in that: described floating platen to be suspended in below seat board by Flexible Connector and to abut on seat board, freely rotates when pressing machine presses down by the concave surface of joint and convex surface relative to seat board.
6. according to wheel hub bolt automatic press mounting machine pressing plate according to claim 5, it is characterized in that: described seat board and floating platen arrange corresponding through hole, described Flexible Connector is through being the bolt stating through hole, arranges spring between described bolt lower end and floating platen.
7. according to wheel hub bolt automatic press mounting machine pressing plate according to claim 2, it is characterized in that: the lower surface of described bulb is sphere.
8. according to wheel hub bolt automatic press mounting machine pressing plate according to claim 2, it is characterized in that: the upper surface of described bulb is sphere, above described bulb, seat board arranges limited post.
9. a wheel hub bolt automatic press mounting machine indenter device, is characterized in that: comprise pressing plate, pressure head body and depression bar, and described pressure head body is connected on seat board, and described depression bar is arranged on pressure head body; Described pressing plate comprises seat board and floating platen, described floating platen is arranged on below seat board, described seat board bottom is provided with the concave surface of spherical crown shape, described floating platen is provided with the convex surface matched with concave, only by concave surface and convex surface joint, other position is separated with seat board for seat board and floating platen, when pressing machine is pressed down, floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface, and described floating platen periphery arranges the bulb matched with the boss bolt position of required compression.
10. a wheel hub bolt automatic press mounting machine, is characterized in that: comprise support, base and pressure head, and described pressure head comprises pressing plate, pressure head body and depression bar, and described pressure head body is connected on seat board, and described depression bar is arranged on pressure head body; Described pressing plate comprises seat board and floating platen, described floating platen is arranged on below seat board, described seat board bottom is provided with the concave surface of spherical crown shape, described floating platen is provided with the convex surface matched with concave, only by concave surface and convex surface joint, other position is separated with seat board for seat board and floating platen, when pressing machine is pressed down, floating platen can be freely swung relative to seat board by the concave surface of joint and convex surface, and described floating platen periphery arranges the bulb matched with the boss bolt position of required compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051238.6A CN105479150A (en) | 2016-01-26 | 2016-01-26 | Wheel drum bolt automatic press mounting machine, pressing head device and pressing plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051238.6A CN105479150A (en) | 2016-01-26 | 2016-01-26 | Wheel drum bolt automatic press mounting machine, pressing head device and pressing plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105479150A true CN105479150A (en) | 2016-04-13 |
Family
ID=55666606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610051238.6A Pending CN105479150A (en) | 2016-01-26 | 2016-01-26 | Wheel drum bolt automatic press mounting machine, pressing head device and pressing plate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105479150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654198A (en) * | 2020-12-22 | 2022-06-24 | 沈阳新松机器人自动化股份有限公司 | Floating pressure head with centering function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU670411A1 (en) * | 1977-07-04 | 1979-06-30 | Целинный Филиал Государственного Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Технологического Института Ремонта И Эксплуатации Машино-Тракторного Парка Целингоснити | Apparatus for pressing-out sleeve-like articles |
| JPS6279928A (en) * | 1985-10-02 | 1987-04-13 | Honda Motor Co Ltd | Assembly method of parts |
| CN201173860Y (en) * | 2008-03-20 | 2008-12-31 | 杭州奥普拓新技术有限公司 | Press head device for compacting bearing in bearing detection device |
| CN202894707U (en) * | 2012-10-29 | 2013-04-24 | 龙工（上海）桥箱有限公司 | Assembling tool of variable mechanism of hydraulic motor |
| CN204639539U (en) * | 2015-03-30 | 2015-09-16 | 重庆志成机械有限公司 | Floating head pressing plate indenter device |
-
2016
- 2016-01-26 CN CN201610051238.6A patent/CN105479150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU670411A1 (en) * | 1977-07-04 | 1979-06-30 | Целинный Филиал Государственного Всесоюзного Ордена Трудового Красного Знамени Научно-Исследовательского Технологического Института Ремонта И Эксплуатации Машино-Тракторного Парка Целингоснити | Apparatus for pressing-out sleeve-like articles |
| JPS6279928A (en) * | 1985-10-02 | 1987-04-13 | Honda Motor Co Ltd | Assembly method of parts |
| CN201173860Y (en) * | 2008-03-20 | 2008-12-31 | 杭州奥普拓新技术有限公司 | Press head device for compacting bearing in bearing detection device |
| CN202894707U (en) * | 2012-10-29 | 2013-04-24 | 龙工（上海）桥箱有限公司 | Assembling tool of variable mechanism of hydraulic motor |
| CN204639539U (en) * | 2015-03-30 | 2015-09-16 | 重庆志成机械有限公司 | Floating head pressing plate indenter device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654198A (en) * | 2020-12-22 | 2022-06-24 | 沈阳新松机器人自动化股份有限公司 | Floating pressure head with centering function |
| CN114654198B (en) * | 2020-12-22 | 2023-01-03 | 沈阳新松机器人自动化股份有限公司 | Floating pressure head with centering function |
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Application publication date: 20160413 |