CN209303953U - Welding fixture - Google Patents
Welding fixture Download PDFInfo
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- CN209303953U CN209303953U CN201821869408.2U CN201821869408U CN209303953U CN 209303953 U CN209303953 U CN 209303953U CN 201821869408 U CN201821869408 U CN 201821869408U CN 209303953 U CN209303953 U CN 209303953U
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Abstract
The utility model discloses a kind of welding fixtures, for positioning clamping ring-shaped work pieces in ring-shaped work pieces welding process, welding fixture include fixture base for carrying ring-shaped work pieces and in fixture base for the centering assembly from positioning clamping ring-shaped work pieces on the inside of ring-shaped work pieces, centering assembly includes at least three positioning columns circumferentially equidistantly arranged, and positioning column is along ring-shaped work pieces radially against in being positioned so that ring-shaped work pieces is felt relieved on the inner hole wall of ring-shaped work pieces.The welding fixture of the utility model, centering assembly is moved and is born against on the inner hole wall of ring-shaped work pieces along the radially uniform of ring-shaped work pieces in the positioning column that is circumferentially arranged by least three, and more positioning columns are circumferentially equidistantly arranged, ring-shaped work pieces stress equalization, the center of ring-shaped work pieces inner hole is located on the central axis of centering assembly, to realize the positioning clamping of ring-shaped work pieces, avoiding ring-shaped work pieces that positional shift radially occurs causes structure after welding eccentric.
Description
Technical field
The utility model relates to clamping device fields, particularly, are related to a kind of for the positioning when welding on ring-shaped work pieces
Clamp the welding fixture of ring-shaped work pieces.
Background technique
Requirement of the welding procedure to Workpiece clamping is very high, and the welding fixture for clamping workpiece requires easy to operate, clamping
Reliably, rigidity is appropriate.In the welding of pulley base annular vertical plate, it usually will cause the deformation of commissure material and then cause to weld
Bias, general welding fixture application effect in the centering of round plate is bad, and therefore, this patent proposes a kind of novel
Tower crane pulley base vertical plate welding tooling, can be realized good ring-shaped work pieces material centering effect.
In the welding procedure of pulley base annular vertical plate, it is desirable that one block of annular pasting board is welded on a pulley base side plate
And ensure that the center of circle of annular pasting board inner hole and the center of circle of inner hole on pulley base side plate are located on same axis, since welding will cause
Positional shift, which radially occurs, for the deformation of junction material or annular pasting board causes the annular pasting board after welding eccentric, therefore wants
Ask welding fixture that can feel relieved to annular pasting board, since the outer rim of this kind of ring-shaped work pieces of annular pasting board is circle, it is difficult to pass through welding
Fixture is resisted against to grip ring-shaped work pieces in outer rim, therefore in the prior art, after adding location hole on plate,
It is inserted into location hole by positioning pin again to realize the positioning clamping of ring-shaped work pieces, when welding, caused material deformation can make
Shear stress is formed between positioning pin and material, damages material and positioning pin, and due to needing to punch on material, makes material
Strength reduction, material is more easier that deformation occurs when welding, and the annular pasting board after leading to welding is eccentric.
Utility model content
The utility model provides a kind of welding fixture, to solve to be currently used for the welding fixture of positioning clamping ring-shaped work pieces
The technical problem of locating effect difference.
The utility model provides a kind of welding fixture, for positioning clamping ring-shaped work pieces in ring-shaped work pieces welding process, weldering
Welding fixture includes fixture base for carrying ring-shaped work pieces and is set in fixture base for the side positioning out of ring-shaped work pieces
The centering assembly of ring-shaped work pieces is clamped, centering assembly includes at least three positioning columns circumferentially equidistantly arranged, and positioning column is along ring
Shape part radially against on the inner hole wall of ring-shaped work pieces with by ring-shaped work pieces feel relieved position.
Further, centering assembly further includes multijaw cylinder and is respectively arranged on multiple movable ends of multijaw cylinder
It is multiple for installing the mounting bases of positioning column, multijaw cylinder moved radially for drive installation seat so that more positioning columns against
In on the inner hole wall of ring-shaped work pieces.
Further, mounting base is equipped with multiple installations for being used to install positioning column along the arrangement of mounting base moving direction
Hole.
Further, multijaw cylinder is equipped with the speed control valve for adjusting mounting base movement speed.
Further, fixture base includes the upper plate being oppositely arranged and lower plate and for connecting upper plate and bottom
The support column of plate；Ring-shaped work pieces is placed on upper plate, and the mounting rack for installing centering assembly, installation are equipped in fixture base
Frame includes mounting platform below the upper plate for placing assembly of feeling relieved and both ends be fixedly arranged on respectively mounting platform with
For driving mounting platform along the axial movement of ring-shaped work pieces so that height in the inner hole that positioning column protrudes into ring-shaped work pieces on bottom plate
Degree adjusts cylinder.
Further, mounting rack further include be fixedly arranged between upper plate and lower plate and through the guide post of mounting platform with
And it is sheathed in guide post and is fixed on the sliding bearing on mounting platform, guide post is for guiding mounting platform along ring-shaped work pieces
Axial movement positional shift radially occurs to avoid mounting platform.
Further, positioning column is resisted against one end on the inner hole wall of ring-shaped work pieces equipped with connecting hose.
Further, fixture base is equipped with the guide groove for passing through for positioning column and positioning column being guided to move radially.
Further, welding fixture further includes the welded for the first to-be-welded pieces of positioning clamping and ring-shaped work pieces
One clamp assemblies, one or more groups of first clamp assemblies are installed in fixture base by being fixedly arranged on fixture base sliding rail, and first
Clamp assemblies include the slide unit being slidably connected with sliding rail, the gripper cylinder being fixedly arranged on slide unit and are respectively arranged in gripper cylinder
For clamping the clamping plate of the first to-be-welded pieces in fixing end and movable end.
Further, welding fixture further includes the welded for the second to-be-welded pieces of positioning clamping and ring-shaped work pieces
Two clamp assemblies, the second clamp assemblies include the sliding slot being fixedly arranged in fixture base, be fixedly arranged at sliding slot both ends open first
Block and the second block, the spring being placed in sliding slot, through the first block and be inserted into spring guide rod, be fixed on guide rod
Handle on one end outside sliding slot and the sliding pushing block being fixed on one end that guide rod is located in sliding slot.
The utility model has the following beneficial effects:
The welding fixture of the utility model, centering assembly pass through at least three in the positioning column being circumferentially arranged along ring-shaped work pieces
Radially uniform movement and bear against on the inner hole wall of ring-shaped work pieces, determine a round principle according to 3 points, and more
Root positioning column is circumferentially equidistantly arranged, therefore the active force between every positioning column and ring-shaped work pieces is equal, ring-shaped work pieces stress
The center of equilibrium, ring-shaped work pieces inner hole is located on the central axis of centering assembly, to realize the positioning clamping of ring-shaped work pieces, keeps away
Exempt from ring-shaped work pieces positional shift radially occur to cause structure after welding eccentric, without adding location hole, material on ring-shaped work pieces
Expect that intensity is unaffected, avoids reducing due to the strength of materials and cause ring-shaped work pieces to be easy to deformation and cause structure after welding eccentric；
When using automatic welding, the central axes for assembly of feeling relieved can be used as reference line, consequently facilitating automatic welding operates.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the structural schematic diagram of the welding fixture of the preferred embodiment in the utility model；
Fig. 2 is the side structure schematic view of the welding fixture of the preferred embodiment in the utility model；
Fig. 3 is the structural schematic diagram of the centering assembly of the preferred embodiment in the utility model；
Fig. 4 is the structural schematic diagram of first clamp assemblies of the preferred embodiment in the utility model；
Fig. 5 is the structural schematic diagram of second clamp assemblies of the preferred embodiment in the utility model.
Marginal data:
1, fixture base；2, centering assembly；21, positioning column；22, mounting base；23, multijaw cylinder；24, connecting hose；3, pacify
It shelves；31, mounting platform；32, height adjustment cylinder；33, guide post；34, sliding bearing；4, guide groove；5, the first clamp assemblies；
51, slide unit；52, gripper cylinder；53, clamping plate；6, sliding rail；7, the second clamp assemblies；71, sliding slot；72, the first block；73, second
Block；74, spring；75, guide rod；76, handle；77, pushing block is slided.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by following
The multitude of different ways for limiting and covering is implemented.
Fig. 1 is the structural schematic diagram of the welding fixture of the preferred embodiment in the utility model；Fig. 2 is that the utility model is preferably real
Apply the side structure schematic view of the welding fixture of example；Fig. 3 is the structural representation of the centering assembly of the preferred embodiment in the utility model
Figure；Fig. 4 is the structural schematic diagram of first clamp assemblies of the preferred embodiment in the utility model；Fig. 5 is that the utility model is preferably real
Apply the structural schematic diagram of the second clamp assemblies of example.
As shown in Figure 1, the welding fixture of the present embodiment, is used for positioning clamping ring-shaped work pieces in ring-shaped work pieces welding process,
Welding fixture includes fixture base 1 for carrying ring-shaped work pieces and is set in fixture base 1 on the inside of ring-shaped work pieces
The centering assembly 2 of positioning clamping ring-shaped work pieces, centering assembly 2 includes at least three positioning columns 21 circumferentially equidistantly arranged, fixed
Position column 21 is along ring-shaped work pieces radially against in being positioned on the inner hole wall of ring-shaped work pieces with ring-shaped work pieces is felt relieved.The utility model
Welding fixture, centering assembly 2 is resisted against the inner hole of ring-shaped work pieces by least three positioning columns 21 circumferentially equidistantly arranged
On wall, a round principle is determined according to 3 points, and more positioning columns 21 are arranged in equilateral polygon, therefore every positioning column
Active force between 21 and ring-shaped work pieces is equal, ring-shaped work pieces stress equalization, and the center of ring-shaped work pieces inner hole is located at centering assembly 2
Central axis on, to realize the positioning clamping of ring-shaped work pieces, avoiding ring-shaped work pieces that positional shift radially occurs causes to weld
It is eccentric to connect rear structure, without adding location hole on ring-shaped work pieces, the strength of materials is unaffected, avoids reducing due to the strength of materials
It causes ring-shaped work pieces to be easy to deformation and causes structure after welding eccentric；When using automatic welding, the central axes for assembly 2 of feeling relieved can be with
As reference line, consequently facilitating automatic welding operates.In the present embodiment, centering assembly 2 passes through arrangement in equilateral triangle
Three positioning columns 21 be resisted against ring-shaped work pieces positioning clamping on the inner hole wall of ring-shaped work pieces.Optionally, centering assembly 2 passes through
Four positioning columns 21 of square arrangement are resisted against ring-shaped work pieces positioning clamping on the inner hole wall of ring-shaped work pieces.For inner hole
For the ring-shaped work pieces of polygon, the welding fixture that the utility model can also be used carries out clamping position, and the quantity of positioning column 21
It is identical as polygon vertex quantity, the vertex of inner hole is resisted against for ring-shaped work pieces clamping position by positioning column 21.In this reality
It applies in example, annular pasting board is welded in composition pulley base annular vertical plate on pulley base side plate, pulley base side plate is placed in fixture bottom
On seat 1, in inner hole and the pulley base side for annular pasting board being placed on pulley base side plate and being passed through by centering assembly 2 annular pasting board
Annular pasting board and pulley base positioning clamping are made the center of circle of the inner hole of annular pasting board and the inner hole of pulley base side plate by the inner hole of plate
The center of circle be located on same axis.
As shown in figure 3, centering assembly 2 further includes multijaw cylinder 23 and the multiple activities for being respectively arranged in multijaw cylinder 23
It is multiple for installing the mounting bases 22 of positioning column 21 on end, multijaw cylinder 23 moved radially for drive installation seat 22 so that
More positioning columns 21 are resisted against on the inner hole wall of ring-shaped work pieces.In use, more positioning columns 21 are protruded into ring-shaped work pieces first
In inner hole, then pass through 23 drive installation seat 22 of multijaw cylinder and move radially to match with ring-shaped work pieces hole size, it is fixed to make
Position column 21 is resisted against on the inner hole wall of ring-shaped work pieces, therefore is applicable to the positioning of the ring-shaped work pieces of different radial dimension of inner holes
Clamping, improves the applicability of welding fixture.Optionally, the distance between the axis of 21 outermost of positioning column and centering assembly 2
Equal to the radial dimension of ring-shaped work pieces inner hole, directly ring-shaped work pieces is sheathed on more positioning columns 21 to realize annular before welding
The positioning clamping of part.
As shown in figure 3, mounting base 22 is used to install positioning column 21 equipped with multiple along the arrangement of 22 moving direction of mounting base
Mounting hole.By the way that positioning column 21 is installed in different mounting holes, then by 23 drive installation seat 22 of multijaw cylinder along diameter
To mobile to be adjusted according to the radial dimension of ring-shaped work pieces inner hole, be resisted against positioning column 21 on ring-shaped work pieces inner hole wall with
By ring-shaped work pieces positioning clamping, the applicability of welding fixture is further improved.
As shown in figure 3, multijaw cylinder 23 is equipped with the speed control valve for adjusting 22 movement speed of mounting base.Pass through speed
The gas flow of degree control valve control multijaw cylinder 23 avoids speed mistake to adjust the speed that mounting base 22 moves radially
Cause positioning column 21 against excessive with the dynamics on ring-shaped work pieces inner hole wall fastly.
As shown in Fig. 2, fixture base 1 include the upper plate that is oppositely arranged and lower plate and for connect upper plate and under
The support column of bottom plate；Ring-shaped work pieces is placed on upper plate, and the mounting rack for installing centering assembly 2 is equipped in fixture base 1
3, mounting rack 3 includes that the mounting platform 31 for being used to place centering assembly 2 below upper plate and both ends are fixedly arranged on peace respectively
For driving mounting platform 31 along the axial movement of ring-shaped work pieces so that positioning column 21 protrudes into annular on assembling platform 31 and upper plate
Height adjustment cylinder 32 in the inner hole of part.
As shown in Fig. 2, mounting rack 3 further includes the guiding for being fixedly arranged between upper plate and lower plate and running through mounting platform 31
Column 33 and it is sheathed in guide post 33 and is fixed on the sliding bearing 34 on mounting platform 31, guide post 33 is for guiding installation
To avoid mounting platform 31 positional shift radially occurs for platform 31 along the axial movement of ring-shaped work pieces.
As shown in figures 1 and 3, positioning column 21 is resisted against one end on the inner hole wall of ring-shaped work pieces equipped with connecting hose 24.It is logical
Connecting hose 24 is added in the one end crossed in the inner hole that positioning column 21 is resisted against ring-shaped work pieces, and positioning column 21 is avoided to be resisted against annular zero
Dynamics on part inner hole wall is excessive and has damaged ring-shaped work pieces.Optionally, positioning column 21 is resisted against on the inner hole wall of ring-shaped work pieces
One end be arranged with elastic protecting sleeve or flexible protective casing.
It is passed through for positioning column 21 as shown in Figure 1, fixture base 1 is equipped with and guides what positioning column 21 moved radially to lead
Slot 4.In the present embodiment, positioning column 21 is equipped with three, and guide groove 4 is in herringbone.Optionally, positioning column 21 is equipped with four, guide groove 4
In cross.Guide groove 4 guides positioning column 21 to move radially, while in the welding process limiting positioning column 21 to avoid positioning
Positional shift circumferentially occurs for column 21.Optionally, fixture base 1 is equipped with the through-hole passed through for positioning column 21, the diameter of through-hole
It is greater than or equal to ring-shaped work pieces inner hole radial dimension to size and is less than the outer circle radial dimension of ring-shaped work pieces.
As shown in figure 4, welding fixture further includes being welded for the first to-be-welded pieces of positioning clamping and ring-shaped work pieces
First clamp assemblies 5, one or more groups of first clamp assemblies 5 are installed on fixture base 1 by being fixedly arranged on 1 sliding rail 6 of fixture base
On, the first clamp assemblies 5 include the slide unit 51 being slidably connected with sliding rail 6, are fixedly arranged on 51 gripper cylinder 52 of slide unit and pacify respectively
Loaded on the clamping plate 53 for being used to clamp the first to-be-welded pieces on 52 fixing end of gripper cylinder and movable end.In the present embodiment, by ring
Shape pasting board is welded on pulley base side plate after composition pulley base annular vertical plate, it is also necessary to by stiffener plate vertical welding in pulley base
On side plate and one end and annular pasting board weld.By being welded after 5 positioning clamping stiffener plate of the first clamp assemblies of multiple groups,
In, drive the clamping plate 53 being fixed on 52 movable end of gripper cylinder to the clamping plate 53 being fixed in fixing end by gripper cylinder 52
Movement clamps stiffener plate, then stiffener plate is adjusted at position to be welded by moving slide unit 51 along sliding rail 6.
As shown in figure 5, welding fixture further includes being welded for the second to-be-welded pieces of positioning clamping and ring-shaped work pieces
Second clamp assemblies 7, the second clamp assemblies 7 include the sliding slot 71 being fixedly arranged in fixture base 1, are fixedly arranged on 71 both ends open of sliding slot
First block 72 and the second block 73 at place, through the first block 72 and are inserted into spring 74 spring 74 being placed in sliding slot 71
Guide rod 75, the handle 76 that is fixed on one end that guide rod 75 is located at outside sliding slot 71 and be fixed on guide rod 75 and be located at and slide
Second to-be-welded pieces are held on sliding pushing block when spring 74 is when in a compressed state by the sliding pushing block 77 on one end in slot 71
77 and second between block 73.Optionally, handle 76 is articulated on one end that guide rod 75 is located at outside sliding slot 71, passes through turning handle
Hand 76 pulls out a part of guide rod 75 from sliding slot 71.Optionally, handle 76 is fixed in guide rod 75 and is located at outside sliding slot 71
On one end, a part of guide rod 75 is pulled out from sliding slot 71 by pull handle 76.In the present embodiment, annular pasting board is welded
It is connected to after constituting pulley base annular vertical plate on pulley base side plate, it is also necessary to rope blocking plate is welded on annular pasting board, passed through first
Swing handle 76, which pulls out guide rod 75, to be compressed spring 74 and slides the spacing between pushing block 77 and the second block 73 to increase, will
Rope blocking plate is placed between sliding pushing block 77 and the second block 73, will be kept off after swing handle 76 by the spring 74 of compressive state again
Rope plate is fixed between sliding pushing block 77 and the second block 73.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of welding fixture, for positioning clamping ring-shaped work pieces in ring-shaped work pieces welding process, which is characterized in that
Welding fixture include for carry the fixture base of ring-shaped work pieces (1) and be set to the fixture base (1) on for from
The centering assembly (2) of positioning clamping ring-shaped work pieces on the inside of ring-shaped work pieces,
Centering assembly (2) includes at least three positioning columns (21) circumferentially equidistantly arranged, and the positioning column (21) is along ring
Shape part radially against on the inner hole wall of ring-shaped work pieces with by ring-shaped work pieces feel relieved position.
2. welding fixture according to claim 1, which is characterized in that
Centering assembly (2) further includes multijaw cylinder (23) and the multiple activities for being respectively arranged in the multijaw cylinder (23)
Multiple for installing the mounting base (22) of the positioning column (21) on end, the multijaw cylinder (23) is for driving the installation
Seat (22) moves radially so that the more positioning columns (21) are resisted against on the inner hole wall of ring-shaped work pieces.
3. welding fixture according to claim 2, which is characterized in that
The mounting base (22) is used to install the positioning column equipped with multiple along the arrangement of the mounting base (22) moving direction
(21) mounting hole.
4. welding fixture according to claim 2, which is characterized in that
The multijaw cylinder (23) is equipped with the speed control valve for adjusting the mounting base (22) movement speed.
5. welding fixture according to claim 1, which is characterized in that
The fixture base (1) includes the upper plate being oppositely arranged and lower plate and the branch for connecting upper plate and lower plate
Dagger；
Ring-shaped work pieces is placed on upper plate, and the installation for installing centering assembly (2) is equipped in the fixture base (1)
Frame (3),
The mounting rack (3) include mounting platform (31) below the upper plate for placing centering assembly (2) and
Both ends are fixedly arranged on the mounting platform (31) and the upper plate respectively for driving the mounting platform (31) along annular zero
The axial movement of part is so that the positioning column (21) protrudes into the height adjustment cylinder (32) in the inner hole of ring-shaped work pieces.
6. welding fixture according to claim 5, which is characterized in that
The mounting rack (3) further includes being fixedly arranged between the upper plate and the lower plate and through the mounting platform (31)
Guide post (33) and the sliding bearing that is sheathed on the guide post (33) and is fixed on the mounting platform (31)
(34), the guide post (33) is for guiding the mounting platform (31) along the axial movement of ring-shaped work pieces to avoid the installation
Positional shift radially occurs for platform (31).
7. welding fixture according to claim 1, which is characterized in that
The positioning column (21) is resisted against one end on the inner hole wall of ring-shaped work pieces equipped with connecting hose (24).
8. welding fixture according to claim 1, which is characterized in that
The fixture base (1), which is equipped with, to be passed through for the positioning column (21) and the positioning column (21) is guided to move radially
Guide groove (4).
9. welding fixture according to claim 1, which is characterized in that
The welding fixture further includes the first clamping group welded for the first to-be-welded pieces of positioning clamping and ring-shaped work pieces
Part (5),
One or more groups of first clamp assemblies (5) are installed on institute by the sliding rail (6) being fixedly arranged on the fixture base (1)
It states on fixture base (1),
First clamp assemblies (5) include the slide unit (51) being slidably connected with the sliding rail (6), are fixedly arranged on the slide unit (51)
On gripper cylinder (52) and be respectively arranged on the gripper cylinder (52) fixing end and movable end for clamp first to
The clamping plate (53) of weldment.
10. welding fixture according to claim 1, which is characterized in that
The welding fixture further includes the second clamping group welded for the second to-be-welded pieces of positioning clamping and ring-shaped work pieces
Part (7),
Second clamp assemblies (7) include the sliding slot (71) being fixedly arranged on the fixture base (1), are fixedly arranged on the sliding slot
(71) the first block (72) at both ends open and the second block (73), be placed in the sliding slot (71) spring (74), run through
First block (72) and the guide rod (75) being inserted into the spring (74) are fixed on the guide rod (75) and are located at sliding slot
(71) handle (76) on one end outside and the sliding being fixed on one end that the guide rod (75) is located in sliding slot (71)
Pushing block (77).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821869408.2U CN209303953U (en) | 2018-11-14 | 2018-11-14 | Welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821869408.2U CN209303953U (en) | 2018-11-14 | 2018-11-14 | Welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209303953U true CN209303953U (en) | 2019-08-27 |
Family
ID=67673103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821869408.2U Active CN209303953U (en) | 2018-11-14 | 2018-11-14 | Welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209303953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390476A (en) * | 2020-04-26 | 2020-07-10 | 西格迈股份有限公司 | Welding positioning device and positioning method for spring disc of automobile shock absorber |
| CN111545970A (en) * | 2020-05-12 | 2020-08-18 | 博众精工科技股份有限公司 | Carrier tool |
-
2018
- 2018-11-14 CN CN201821869408.2U patent/CN209303953U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390476A (en) * | 2020-04-26 | 2020-07-10 | 西格迈股份有限公司 | Welding positioning device and positioning method for spring disc of automobile shock absorber |
| CN111390476B (en) * | 2020-04-26 | 2021-09-14 | 西格迈股份有限公司 | Welding positioning device and positioning method for spring disc of automobile shock absorber |
| CN111545970A (en) * | 2020-05-12 | 2020-08-18 | 博众精工科技股份有限公司 | Carrier tool |
| CN111545970B (en) * | 2020-05-12 | 2022-01-28 | 博众精工科技股份有限公司 | Carrier tool |
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