CN114799623A - Floating positioning pin device and weldment positioning method - Google Patents
Floating positioning pin device and weldment positioning method Download PDFInfo
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- CN114799623A CN114799623A CN202210324313.7A CN202210324313A CN114799623A CN 114799623 A CN114799623 A CN 114799623A CN 202210324313 A CN202210324313 A CN 202210324313A CN 114799623 A CN114799623 A CN 114799623A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to the technical field of positioning devices, and discloses a floating positioning pin device and a weldment positioning method, wherein the device comprises: a mounting seat having a mounting hole; the positioning pin is arranged in the mounting hole, and a gap is formed between the positioning pin and the inner wall of the mounting hole; the floating roof mechanism comprises a driving part and a connecting sleeve, the driving part is arranged on the mounting seat and can drive the connecting sleeve to move in a telescopic manner; the connecting sleeve is arranged below the positioning pin and movably connected with the positioning pin, one end of the positioning pin, which is close to the connecting sleeve, is provided with an outer conical wall, the connecting sleeve is provided with an inner conical wall, and the inner conical wall is movably attached to the outer conical wall; when the inner conical wall is abutted against the outer conical wall, the positioning pin is fixed in the mounting hole; when the inner conical wall is separated from the outer conical wall, the positioning pin can move along the radial direction of the positioning pin, and the driving piece can drive the connecting sleeve and the positioning pin to retract. The floating positioning pin device has the advantages of reliable and accurate positioning, convenient pin withdrawing, small pin withdrawing retardation, no influence on product quality and simple structure.
Description
Technical Field
The invention relates to the technical field of positioning devices, in particular to a floating positioning pin device and a weldment positioning method.
Background
Welding is a common process in machining, and for some weldments with pin holes, the pin holes of the weldments are often used as positioning holes to be matched with positioning pins so as to position and fix the weldments, and then subsequent welding processes are performed.
Before and after welding, the pin holes on the weldment can generate radial change to a certain degree, and the pin holes are easy to deviate under the action of welding stress. In a conventional straight-up and straight-down pin withdrawing mechanism, due to the influence of deformation after welding, the position of a pin hole deviates after welding, so that a positioning pin is difficult to withdraw from a positioning hole; or when the positioning pin is withdrawn, the cylindrical surface of the positioning pin easily scratches the inner side surface of the pin hole of the product, so that the product quality is influenced; the pin is withdrawn from the pin hole after the positioning pin is welded, so that the obvious retardation feeling is achieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a floating positioning pin device which is convenient to withdraw pins, accurate in positioning and simple in structure and a weldment positioning method.
The technical scheme adopted by the invention for solving the technical problem is to provide a floating positioning pin device, which comprises:
a mounting seat having a mounting hole;
the positioning pin is arranged in the mounting hole, and a gap is formed between the positioning pin and the inner wall of the mounting hole;
the floating roof mechanism comprises a driving part and a connecting sleeve connected with the driving part, and the driving part is arranged on the mounting seat and can drive the connecting sleeve to move in a telescopic manner; the connecting sleeve is arranged below the positioning pin and movably connected with the positioning pin, one end of the positioning pin, which is close to the connecting sleeve, is provided with an outer conical wall, the connecting sleeve is provided with an inner conical wall, and the inner conical wall is movably attached to the outer conical wall;
when the inner conical wall abuts against the outer conical wall, the positioning pin is fixed in the mounting hole; when the inner conical wall is separated from the outer conical wall, the positioning pin can move along the radial direction of the positioning pin, and the driving piece can drive the connecting sleeve and the positioning pin to retract.
Furthermore, a step hole is arranged below the connecting sleeve along the inner conical wall of the connecting sleeve, a connecting piece is arranged at the bottom of the positioning pin, and a limiting head is arranged at one end, far away from the positioning pin, of the connecting piece;
the connecting piece is arranged in the step hole, the limiting head is positioned below the step of the step hole, and a gap is formed between the limiting head and the step.
Furthermore, the positioning pin comprises an upper pin body, a limiting boss and a connecting part which are sequentially arranged from top to bottom, and the outer conical wall is positioned on the connecting part;
the connecting part is sleeved with a spring, one end of the spring abuts against the limiting boss, and the other end of the spring abuts against the connecting sleeve.
Further, the mount pad includes that pedestal and detachable connect are in top cap on the pedestal, the mounting hole sets up on the top cap, the mounting hole includes round pin hole section and boss hole section down, go up the round pin body with spacing boss sets up respectively go up round pin hole section with boss hole section down, just the adapter sleeve can order about spacing boss support in the lower extreme of going up the round pin hole section.
The seat body is provided with a shaft hole, and the guide sleeve is fixedly arranged in the shaft hole; the top cover is abutted against the upper part of the guide sleeve, and the connecting sleeve is movably arranged in the guide sleeve in a penetrating mode.
Further, the diameter of the limiting boss is larger than the inner diameter of the guide sleeve.
Furthermore, the top of going up the round pin body is equipped with a direction conical head, the diameter of direction conical head is from last to increasing gradually down.
Furthermore, the driving piece is a driving cylinder/driving oil cylinder, and the connecting sleeve is connected to a telescopic shaft of the driving cylinder/driving oil cylinder.
The technical scheme adopted by the invention for solving the technical problem is that the invention also provides a weldment positioning method, the floating positioning pin device is adopted, the weldment is provided with a positioning hole, and the weldment positioning method comprises the following steps:
s1, the driving piece drives the connecting sleeve to jack up, the inner conical wall abuts against the outer conical wall, and the positioning pin is fixed in the mounting hole;
s2, mounting the weldment on the positioning pin, wherein the positioning pin penetrates through the positioning hole;
s3, after the welding of the to-be-welded parts is finished, the driving part drives the connecting sleeve to retract, and the inner conical wall is separated from the outer conical wall; and when the connecting sleeve retracts for a preset distance, the positioning pin and the connecting sleeve retract cooperatively.
Further, when the positioning hole is deformed in the radial direction of the positioning hole itself during the welding of the weldment, in S3, the inner tapered wall is separated from the outer tapered wall, and the positioning pin moves in the direction in which the positioning hole is deformed.
Compared with the prior art, the invention has at least the following beneficial effects:
according to the invention, a gap is formed between the positioning pin and the side wall of the mounting hole, the outer conical wall at the bottom of the positioning pin is movably attached to the inner conical wall on the connecting sleeve, when the positioning pin positions a weldment, the driving part in the floating-roof mechanism drives the connecting sleeve to be jacked upwards, the outer conical wall is upwards extruded by the inner conical wall, the limiting boss on the positioning pin abuts against the mounting seat, the positioning pin is ensured to be fixed in position, the positioning pin cannot deviate, and the positioning is accurate. After welding is finished, a pin hole on a welding piece is influenced by welding stress and changes in a radial direction, a driving piece in the floating top mechanism retracts to drive the connecting sleeve to retract, because a limit head of the connecting piece and a step of the stepped hole also have a gap, an inner conical wall on the connecting sleeve is separated from an outer conical wall on the positioning pin, the connecting sleeve relieves the radial limit on the positioning pin, a gap is formed between the positioning pin and the mounting hole, and the positioning pin can move along the direction of the deviation of the pin hole on welding under the influence of the pin hole; when the driving piece continues to retract, the limiting head on the connecting piece can abut against the step of the step hole, the connecting sleeve retracts in cooperation with the positioning pin, the positioning pin is pulled out (withdrawn) from the pin hole of the welding piece, the retarding sense in the withdrawing process is small, the inner wall of the pin hole cannot be scratched, and the product quality is guaranteed not to be affected.
Drawings
FIG. 1 is a schematic structural view of a floating locating pin arrangement according to the present invention;
FIG. 2 is a schematic half-section view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an exploded view of the floating locating pin arrangement;
FIG. 6 is a schematic view of the floating locating pin device when the locating pin is separated from the connecting sleeve;
fig. 7 is a schematic structural view of a positioning pin.
In the figure:
1. a mounting seat; 10. a top cover; 100. mounting holes; 100A, an upper pin hole section; 100B, a lower boss hole section; 11. a base body; 110. a shaft hole;
2. positioning pins; 20. an upper pin body; 200. a guiding conical head; 21. a limiting boss; 22. a connecting portion; 220. an outer conical wall; 23. a connecting member; 230. a limiting head; 24. a spring;
3. a floating roof mechanism; 30. a drive member; 31. connecting sleeves; 310. an inner conical wall; 311. a stepped bore; 312. a step; 32. a guide sleeve;
H. a gap.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-2 and 5, a floating dowel apparatus includes: the device comprises a mounting seat 1, a positioning pin 2 and a floating roof mechanism 3, wherein the floating roof mechanism 3 comprises a driving piece 30, a connecting sleeve 31 and a guide sleeve 32.
The mounting seat 1 is provided with a mounting hole 100, specifically, the mounting seat 1 comprises a seat body 11 and a top cover 10 detachably connected to the seat body 11, the seat body 11 and the top cover 10 can be connected through a bolt, the mounting seat is configured into two parts, namely, the seat body 11 and the top cover 10, and other components are conveniently mounted in the mounting seat. The mounting hole 100 is provided on the top cover 10, the mounting hole 100 includes an upper pin hole section 100A and a lower boss hole section 100B, and the diameter of the upper pin hole section 100A is smaller than that of the lower boss hole section 100B, and the shape of the mounting hole 100 is adapted to the shape of the positioning pin 2.
As shown in fig. 2 and 3, the positioning pin 2 is disposed in the mounting hole 100, a gap H is formed between the positioning pin 2 and the inner wall of the mounting hole 100, the head of the positioning pin 2 movably protrudes out of the mounting hole 100, and in the actual use process, the positioning hole on the weldment is matched with the head of the positioning pin 2, so as to complete the positioning of the weldment. The positioning pin 2 can move up and down in the mounting hole 100, and when the positioning pin 2 rises to protrude out of the mounting hole 100, a weldment can be positioned; when the locating pin 2 retracts downwards, the locating pin 2 can be drawn out of the locating hole of the weldment, namely, the pin is withdrawn, so that the welded welding can be taken away.
As shown in fig. 2 and 5, the floating roof mechanism 3 includes a driving member 30 and a connecting sleeve 31 connected to the driving member 30, wherein the driving member 30 is a driving cylinder/driving cylinder, and the connecting sleeve 31 is connected to a telescopic shaft of the driving cylinder/driving cylinder. The driving member 30 is arranged on the mounting base 1 and can drive the connecting sleeve 31 to perform telescopic motion, the connecting sleeve 31 and a telescopic shaft of the driving member 30 can be directly connected or indirectly connected, for example, an external thread is arranged on the telescopic shaft of the driving member 30, an internal thread hole is arranged on the connecting sleeve 31, and the telescopic shaft and the connecting sleeve 31 are in threaded connection; the connecting sleeve 31 is disposed below the positioning pin 2 and movably connected to the positioning pin 2, and as needed to be explained, the movable connection means: the connecting sleeve 31 and the positioning pin 2 are not fixed, and a certain degree of relative movement can occur between the two.
As shown in fig. 2 and 4, the connection mode between the connection sleeve 31 and the positioning pin 2 is as follows: a stepped hole 311 is arranged below the connecting sleeve 31 along the inner conical wall 310, a connecting piece 23 is arranged at the bottom of the positioning pin 2, and a limiting head 230 is arranged at one end, far away from the positioning pin 2, of the connecting piece 23; the connecting piece 23 is arranged in the stepped hole 311, the limiting head 230 is located below the step 312 of the stepped hole 311, and a gap H is formed between the limiting head 230 and the step 312, and the gap H allows relative movement between the connecting sleeve 31 and the positioning pin 2, for example, the connecting sleeve 31 can move downward relative to the positioning pin 2 by the distance H, so that the inner conical wall of the connecting sleeve 31 is separated from the outer conical wall 220 of the positioning pin 2, and relative radial movement can also occur between the positioning pin 2 and the connecting sleeve 31; when the distance of the downward movement of the connecting sleeve 31 is greater than the gap between the connecting sleeve 31 and the positioning pin 2, the connecting sleeve 31 drives the positioning pin 2 to move downward in a coordinated manner to complete the pin withdrawing action, so that the positioning pin 2 is movably connected with the connecting sleeve 31.
As shown in fig. 2 and 6, an outer conical wall 220 is disposed at one end of the positioning pin 2 close to the connecting sleeve 31, an inner conical wall 310 is disposed on the connecting sleeve 31, the inner conical wall 310 is movably attached to the outer conical wall 220, the tapers of the inner conical wall 310 and the outer conical wall 220 are equal, so that the inner conical wall and the outer conical wall can be attached to each other, when the inner conical wall 310 abuts against the outer conical wall 220, the positioning pin 2 is fixed in the mounting hole 100, that is, when the connecting sleeve 31 moves upward, and the positioning pin 2 is pressed upward, the limiting boss 21 on the positioning pin 2 abuts against the top cover 10, and the positioning pin 2 is fixed in position, and cannot move radially or axially. When the inner conical wall 310 is separated from the outer conical wall 220, the positioning pin 2 can move radially along the positioning pin 2, and the driving member 30 can drive the connecting sleeve 31 and the positioning pin 2 to retract, when the inner conical wall 310 is separated from the outer conical wall 220, firstly, the positioning pin 2 can be radially displaced, because the pin hole on the weldment can be radially changed after welding, and the movement direction of the positioning pin 2 is the same as the radial position change direction of the pin hole on the weldment. After the dowel pin 2 is displaced to accommodate the change in radial position of the pin hole in the weldment, the driver 30 continues to retract, causing the dowel pin 2 to retract in conjunction with the connection sleeve 31.
The floating positioning pin device further comprises a guide sleeve 32, a shaft hole 110 is formed in the base body 11, and the guide sleeve 32 is fixedly installed in the shaft hole 110; the top cap 10 supports the top of uide bushing 32, top cap 10 is spacing to uide bushing 32, guarantees that it can not break away from in the shaft hole 110, adapter sleeve 31 wears to establish with moving about in the uide bushing 32, at adapter sleeve 31 repeated elevating movement's in-process, takes place wearing and tearing to the part rather than the contact easily, and if direct messenger adapter sleeve 31 contacts with the inner wall of pedestal 11, can make pedestal 11 by the back of wearing and tearing, big with adapter sleeve 31's clearance, influences the precision of adapter sleeve 31 up-and-down motion, and then influences the positioning accuracy of unsteady locating pin device. And set up uide bushing 32, the adapter sleeve 31 directly contacts between with the uide bushing 32, and the uide bushing 32 can adopt wear-resisting material to make, and after long-term the use, just the uide bushing 32 has worn out, also convenient the change, can directly pull down the back with top cap 10, takes out uide bushing 32.
As shown in fig. 7, the positioning pin 2 includes an upper pin body 20, a limiting boss 21 and a connecting portion 22, which are sequentially arranged from top to bottom, and the outer conical wall 220 is located on the connecting portion 22; a spring 24 is sleeved on the connecting portion 22, one end of the spring 24 abuts against the limiting boss 21, and the other end of the spring abuts against the connecting sleeve 31. The upper pin body 20 and the limiting boss 21 are respectively arranged on the upper pin hole section 100A and the lower boss hole section 100B, and the connecting sleeve 31 can drive the limiting boss 21 to abut against the lower end of the upper pin hole section 100A. The diameter of the limiting boss 21 is larger than the inner diameter of the guide sleeve 32. Go up the top of round pin body 20 and be equipped with a direction conical head 200, the diameter of direction conical head 200 is from last to increasing gradually down, and the setting of direction conical head 200 is convenient to cooperate with pinhole (the locating hole) on the weldment, will weld leading-in to direction conical head 200 on, and then slide on the round pin body 20.
Example two:
a weldment positioning method using the floating positioning pin device of the first embodiment, the weldment having positioning holes thereon, the weldment positioning method comprising:
s1, the driving member 30 drives the connecting sleeve 31 to push up, the inner conical wall 310 abuts against the outer conical wall 220, and the positioning pin 2 is fixed in the mounting hole 100; the position of the positioning pin 2 at this time is uniquely determined.
S2, mounting the weldment onto the positioning pin 2, and enabling the positioning pin 2 to penetrate through the positioning hole; the position of the weldment is positioned and fixed at the moment.
S3, after the welding of the parts to be welded is completed, the driving piece 30 drives the connecting sleeve 31 to retract, and the inner conical wall 310 is separated from the outer conical wall 220; and when the connecting sleeve 31 retracts for a preset distance, the positioning pin 2 and the connecting sleeve 31 retract cooperatively. The predetermined distance is the gap H between the stopper 230 of the connecting member 23 and the step 312 of the stepped hole 311.
When the positioning hole is deformed in the radial direction of the positioning hole itself during the welding of the weldment, in S3, the inner tapered wall 310 is separated from the outer tapered wall 220, and the positioning pin 2 moves in the direction in which the positioning hole is deformed.
In general, in this scheme, clearance H has between the lateral wall of locating pin 2 and mounting hole 100, and the outer conical wall 220 of locating pin 2 bottom pastes with the interior conical wall 310 activity on the adapter sleeve 31 mutually, and when locating pin 2 location weldment, the driving piece 30 in the mechanism 3 of floating top orders about adapter sleeve 31 and pushes up, and interior conical wall 310 upwards extrudes outer conical wall 220, and spacing boss 21 on locating pin 2 supports on mount pad 1, guarantees the rigidity of locating pin 2, and the skew can not take place for locating pin 2, and the location is accurate. After welding is completed, a pin hole (namely a positioning hole) on a weldment is influenced by welding stress and changes in a radial direction, a driving piece 30 in the floating roof mechanism 3 retracts to drive a connecting sleeve 31 to retract, an inner conical wall 310 on the connecting sleeve 31 is separated from an outer conical wall 220 on a positioning pin 2 because a spacing head 230 of a connecting piece 23 and a step 312 of a stepped hole 311 also have a gap H, the connecting sleeve 31 relieves the radial spacing on the positioning pin 2, and the positioning pin 2 has a gap H with an installation hole 100 and moves along the direction of pin hole offset in welding under the influence of the pin hole; when the driving member 30 continues to retract, the limiting head 230 on the connecting member 23 abuts against the step 312 of the stepped hole 311, the connecting sleeve 31 retracts in cooperation with the positioning pin 2, the positioning pin 2 is pulled out (withdrawn) from the pin hole of the weldment, the blocking feeling in the withdrawing process is small, the inner wall of the pin hole is not scratched, and the product quality is not affected.
In this scheme, this locating pin device floats, not only the location is reliable, accurate, moves back the round pin moreover convenient, move back the round pin and block the sense little, do not influence product quality, and simple structure.
Claims (10)
1. A floating locating pin arrangement, comprising:
a mounting seat having a mounting hole;
the positioning pin is arranged in the mounting hole, and a gap is formed between the positioning pin and the inner wall of the mounting hole;
the floating roof mechanism comprises a driving part and a connecting sleeve connected with the driving part, and the driving part is arranged on the mounting seat and can drive the connecting sleeve to move in a telescopic manner; the connecting sleeve is arranged below the positioning pin and movably connected with the positioning pin, one end of the positioning pin, which is close to the connecting sleeve, is provided with an outer conical wall, the connecting sleeve is provided with an inner conical wall, and the inner conical wall is movably attached to the outer conical wall;
when the inner conical wall abuts against the outer conical wall, the positioning pin is fixed in the mounting hole; when the inner conical wall is separated from the outer conical wall, the positioning pin can move along the radial direction of the positioning pin, and the driving piece can drive the connecting sleeve and the positioning pin to retract.
2. The floating positioning pin device according to claim 1, wherein a stepped hole is formed in the connecting sleeve along the lower portion of the inner conical wall of the connecting sleeve, a connecting piece is arranged at the bottom of the positioning pin, and a limiting head is arranged at one end, far away from the positioning pin, of the connecting piece;
the connecting piece is arranged in the step hole, the limiting head is positioned below the step of the step hole, and a gap is formed between the limiting head and the step.
3. The floating positioning pin device according to claim 1 or 2, wherein the positioning pin comprises an upper pin body, a limiting boss and a connecting part which are arranged in sequence from top to bottom, and the outer conical wall is positioned on the connecting part;
the connecting part is sleeved with a spring, one end of the spring abuts against the limiting boss, and the other end of the spring abuts against the connecting sleeve.
4. The floating positioning pin device according to claim 3, wherein the mounting seat comprises a seat body and a top cover detachably connected to the seat body, the mounting hole is opened on the top cover, the mounting hole comprises an upper pin hole section and a lower boss hole section, the upper pin body and the limiting boss are respectively arranged on the upper pin hole section and the lower boss hole section, and the connecting sleeve can drive the limiting boss to abut against the lower end of the upper pin hole section.
5. The floating positioning pin device according to claim 4, further comprising a guide sleeve, wherein a shaft hole is formed in the base body, and the guide sleeve is fixedly installed in the shaft hole; the top cover is abutted against the upper part of the guide sleeve, and the connecting sleeve is movably arranged in the guide sleeve in a penetrating mode.
6. The floating locating pin arrangement of claim 5, wherein the diameter of the stop boss is greater than the inner diameter of the guide sleeve.
7. The floating locating pin device of claim 3, wherein the top of the upper pin body is provided with a guiding conical head, and the diameter of the guiding conical head is gradually increased from top to bottom.
8. The floating locating pin device of claim 1, wherein the driving member is a driving cylinder and the connecting sleeve is connected to a telescopic shaft of the driving cylinder.
9. A weldment positioning method using the floating positioning pin device according to any one of claims 1 to 8, wherein the weldment has positioning holes thereon, the weldment positioning method comprising:
s1, the driving piece drives the connecting sleeve to jack up, the inner conical wall abuts against the outer conical wall, and the positioning pin is fixed in the mounting hole;
s2, mounting the weldment on the positioning pin, wherein the positioning pin penetrates through the positioning hole;
s3, after the welding of the to-be-welded parts is finished, the driving part drives the connecting sleeve to retract, and the inner conical wall is separated from the outer conical wall; and when the connecting sleeve retracts for a preset distance, the positioning pin and the connecting sleeve retract cooperatively.
10. The method according to claim 9, wherein when said pilot hole is deformed radially in a radial direction of said pilot hole itself during said welding of said weldment, said inner tapered wall is separated from said outer tapered wall at S3, and said pilot pin is moved in a direction in which said pilot hole is deformed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324313.7A CN114799623B (en) | 2022-03-30 | 2022-03-30 | Floating positioning pin device and weldment positioning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324313.7A CN114799623B (en) | 2022-03-30 | 2022-03-30 | Floating positioning pin device and weldment positioning method |
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| CN114799623A true CN114799623A (en) | 2022-07-29 |
| CN114799623B CN114799623B (en) | 2024-09-24 |
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| JP2013082036A (en) * | 2011-10-12 | 2013-05-09 | Mitsubishi Motors Corp | Work positioning device and work positioning method |
| CN202367379U (en) * | 2011-12-14 | 2012-08-08 | 北汽福田汽车股份有限公司 | Locating and clamping mechanism and welding fixture |
| CN103244531A (en) * | 2012-02-03 | 2013-08-14 | 福特全球技术公司 | Adjusting pin |
| CN204366323U (en) * | 2014-12-25 | 2015-06-03 | 重庆长安汽车股份有限公司 | The dowel mechanism of automobile door hinge reinforcement |
| JP2018051595A (en) * | 2016-09-29 | 2018-04-05 | 株式会社Ｓｕｂａｒｕ | Positioning device |
| CN206320137U (en) * | 2016-12-22 | 2017-07-11 | 北京汽车股份有限公司 | Positioning component and the vehicle with it |
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| CN215703313U (en) * | 2021-07-22 | 2022-02-01 | 立讯精密组件(苏州)有限公司 | Slide block positioning mechanism and plastic mold |
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