CN113295136A - Stripping device and stripping method for welding quality detection - Google Patents
Stripping device and stripping method for welding quality detection Download PDFInfo
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- CN113295136A CN113295136A CN202110651193.7A CN202110651193A CN113295136A CN 113295136 A CN113295136 A CN 113295136A CN 202110651193 A CN202110651193 A CN 202110651193A CN 113295136 A CN113295136 A CN 113295136A
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- peeling
- welding
- stripping
- fixing piece
- guide rail
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/28—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a stripping device for welding quality detection, which comprises: the positioning seat is used for positioning and welding the workpiece; a holding member for holding the peeled portion of the welding workpiece; the peeling driving mechanism is connected with the fixing piece and used for driving the fixing piece to move along the Z direction and the peeling edge of the welding surface to move along a first direction in the XY plane; and the first direction sliding assembly is connected with the fixing piece and the peeling driving mechanism, guides the fixing piece to slide along the first direction, and is used for adaptively adjusting the peeling angle according to the Z-direction displacement of the fixing piece. The stripping device for welding quality detection adaptively adjusts the position of the fixing piece in the first-direction sliding assembly according to the Z-direction displacement of the fixing piece, maintains the optimal stripping angle and is beneficial to improving the stripping efficiency; the probability that the welding part is broken or falls off from the holding piece is reduced, and the risk of accidental injury of staff due to the welding part is reduced. The invention also discloses a stripping method based on the stripping device for welding quality detection.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to a stripping device and a stripping method for welding quality detection.
Background
The two parts after welding need to be evaluated for welding quality by detecting the effective welding area. By taking the laser welding workpiece of the lithium ion battery positive/negative electrode switching piece as an example, the effective welding area of the welding wire is measured after the switching piece is welded at present, the traditional switching piece is stripped for manual operation, the defects of time and labor waste are caused, the stripping difficulty is high, the hand is easily injured when the switching piece is stripped, the requirement on the physical strength of workers in long-term operation is high, and the measurement efficiency is low.
The improved technical scheme adopts a clamp to clamp a stripping part of a welding workpiece, such as the adapter plate, to fix the welding workpiece and pull the clamp away from the surface of the welding workpiece. The stripping process has the following technical problems: firstly, the direction of the pulling force applied to the stripping part and the point of application are fixed, the stripping part deforms along with the gradual reduction of the welding surface of the stripping part and the welding workpiece substrate, the clamp displaces, the stripping angle (the included angle between the stripping part stretched by the stripping force and the welding surface exposed after stripping) of the stripping part is gradually reduced from an initial value, the component force of the stripping force on the welding surface is gradually increased, the component force perpendicular to the welding surface is gradually reduced, and the included angle between the stripping part and the welding surface exposed after stripping can be pulled off or the stripping part falls off from the clamp when the pulling force of the stripping part is simply increased, so that the stripping operation cannot be finished.
Disclosure of Invention
One of the objectives of the present invention is to overcome the drawbacks of the prior art, and to provide a stripping device for welding quality detection, which adaptively adjusts the position of a holding member in a first direction sliding assembly according to the Z-directional displacement of the holding member, optimizes the stripping angle in real time, and improves the stripping efficiency.
In order to achieve the technical effects, the technical scheme of the invention is as follows: a peeling apparatus for welding quality detection, characterized by comprising:
the positioning seat is used for positioning and welding the workpiece;
a holding member for holding the peeled portion of the welding workpiece;
the peeling driving mechanism is connected with the fixing piece and used for driving the fixing piece to move along the Z direction and the peeling edge of the welding surface to move along a first direction in the XY plane;
and the first direction sliding assembly is connected with the fixing piece and the peeling driving mechanism, guides the fixing piece to slide along the first direction, and is used for adaptively adjusting the peeling angle according to the Z-direction displacement of the fixing piece.
The preferable technical scheme is that the method further comprises the following steps: and the second direction displacement assembly is connected with the holding piece and the peeling driving mechanism and used for guiding the holding piece to perform reciprocating displacement along a second direction different from the first direction in the XY plane.
Preferably, the first direction is perpendicular to the second direction.
The preferred technical scheme is that the first direction sliding assembly comprises a first guide rail and a sliding block which are in free sliding fit, and the first guide rail and the positioning seat are fixedly arranged on the base; the slide block is connected with the movable guide rail seat through the stripping driving mechanism; the second direction displacement assembly comprises a second guide rail which is fixedly arranged on the movable guide rail seat; the holding piece is connected with the second guide rail and moves back and forth along the second guide rail.
The preferable technical scheme is that at least one first guide rail is respectively arranged on two sides of the positioning seat, and the sliding block is erected between the first guide rails.
Preferably, the slider comprises a Z-direction guide member, and the movable guide rail seat is movably connected with the Z-direction guide member.
Preferably, the peeling driving mechanism comprises a screw nut mechanism, a nut of the screw nut mechanism is fixedly connected with the sliding block, and a first end of the screw is rotatably connected with the movable guide rail seat. Furthermore, the other end of the lead screw is connected with the rotating handle, and the lead screw is a trapezoidal lead screw.
The preferable technical scheme is that the sliding block and/or the first guide rail are/is provided with rolling parts, and the sliding block is in rolling fit with the first guide rail through the rolling parts.
Another object of the present invention is to provide a peeling method based on the above peeling apparatus for detecting solder quality, comprising the steps of:
s1: fixedly connecting the welding workpiece with the positioning seat;
s2: fixedly connecting the stripping part of the welding workpiece with the fixing piece;
s3: the stripping driving mechanism drives the fixing piece to move along the Z direction, the stripping edge of the welding surface moves along the first direction in the XY plane, and meanwhile, the fixing piece in the first direction sliding assembly moves along the first direction in a self-adaptive mode and the stripping angle is adjusted until the stripping part of the welding workpiece is completely stripped.
Preferably, the welding surface of the welding workpiece is perpendicular to the Z-direction displacement direction of the holding piece.
The invention has the advantages and beneficial effects that:
the stripping device for welding quality detection is provided with a first-direction sliding assembly, the increase of stripping amount and the deformation of a stripping part can enable a holding piece to generate Z-direction displacement, the position of the holding piece in the first-direction sliding assembly is adaptively adjusted according to the Z-direction displacement amount of the holding piece, the optimal stripping angle is maintained, and the stripping efficiency is improved;
the probability that the welding part is broken or falls off from the holding piece is reduced, and the risk of accidental injury of staff is reduced.
Drawings
FIG. 1 is a schematic perspective view of a peeling apparatus for inspecting welding quality;
FIG. 2 is an enlarged view of a portion of FIG. 1;
in the figure: 1. positioning seats; 11. a pressing plate body; 12. locking the bolt; 2. a holding member; 21. a U-shaped bracket; 22. a movable clamping part; 23. jacking the bolt; 3. a peeling drive mechanism; 31. a lead screw; 32. a nut; 33. a Z-direction guide bar; 34. rotating the handle; 4. an X-direction sliding assembly; 41. a first guide rail; 42. a slider; 5. a base; 6. a Y-direction displacement assembly; 61. a second guide rail; 62. a movable guide rail seat.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The function of the locating seat is to position the welding workpiece, including but not limited to known mechanisms that apply at least one force of clamping, pressing, etc. to the welding workpiece. The shape of the positioning seat depends on the shape of the welding workpiece.
The holding part is used for holding the peeling part of the welding workpiece, and generally adopts clamping parts, including but not limited to a clamping part comprising a fixed clamping part and a movable clamping part, and a clamping part comprising two movable clamping parts.
The action of the peeling driving mechanism moves the holding piece to displace along the Z direction. Alternatively, the Z-displacement includes a bidirectional displacement toward and away from the welding portion, and the driving member for realizing the bidirectional displacement driving of the holding member may be any one of driving mechanisms known in the art, for example, a linear cylinder, a linear hydraulic cylinder, a screw-nut mechanism (driven manually or by a motor), a link reciprocating mechanism, and the like, which output motion is linear reciprocating motion. One of the two parts moving relatively in the driving mechanism is connected with the fixing piece, and the other part is connected with a fixed mounting seat. The mounting seat can be a base of the positioning seat, and can also be another fixed mounting seat.
Under the action of the peeling driving mechanism, the peeling edge of the welding surface moves along a first direction in an XY plane, the actual moving direction of the peeling edge of the welding surface is the first direction, or the first direction and one direction in a Z plane, and the actual moving direction has a component vector of the first direction in the XY plane.
The stripping means that a pulling force is applied to the stripping part, the stripping part deforms due to the stripping pulling force from the edge of the welding surface, the stripping angle is an included angle between the stripping part under the action of the pulling force and the welding surface exposed after stripping, and the stripping angle depends on the included angle between the welding surface of the welding workpiece in the fixed seat and the Z direction. Specifically, the peeling included angle between the welding surface of the welding workpiece and the Z direction is an obtuse angle, a right angle or an acute angle. Preferably, the welding surface of the welding workpiece is perpendicular to the Z direction, the fixing piece slides in the first direction in a self-adaptive manner, the stripping angle in the stripping process always tends to be right-angled, and the stripping force has no component force on the welding surface. The peeling force takes the edge of the welding surface as a starting point, and the component force of the exposed part on the welding surface after peeling is not beneficial to peeling; the force component on the welding surface toward the non-peeled portion may intensify the bending of the peeled portion, thereby increasing the probability of the peeled portion breaking. Based on the same peeling force, the peeling efficiency is higher in which the peeling angle tends to be right-angled, and the probability of occurrence of breakage of the peeled portion and slipping off from the holding member is reduced, as compared with the peeling force in which the above-described two component forces are present.
Optionally, the first direction sliding assembly is disposed between the holding member and the peeling driving mechanism, or disposed between the peeling driving mechanism and the mounting base thereof.
The second direction displacement assembly is used for guiding the second direction displacement of the fixing piece, and the effect of realizing the displacement in the second direction is as follows: the three-dimensional displacement of the holding piece is convenient to realize. In practical production, the fixture is particularly suitable for two welding workpieces comprising more than two stripping parts, and the fixture is switched between different stripping part positions through the displacement of the fixture in the first direction and the second direction. Taking the peeling of the lithium ion battery adapter plate as an example, the positive/negative electrode adapter plate can be detached on the same device, the cover plate does not need to be detached in the process, the peeling of the cover plate adapter plates with various sizes and specifications can be compatible, and the compatibility is strong.
The Z-direction is perpendicular to the XY-plane, and the angle between the first direction and the second direction in the XY-plane may be an acute angle or a right angle, preferably a right angle.
Optionally, the position relationship between the first direction sliding assembly and the second direction displacement assembly is specifically as follows: the holding piece is connected with the peeling driving mechanism sequentially through the first direction sliding assembly and the second direction displacement assembly, or the holding piece is connected with the peeling driving mechanism sequentially through the second direction displacement assembly and the first direction sliding assembly; or one of the first direction sliding component and the second direction displacement component is arranged between the peeling driving mechanism and the mounting seat thereof, and the other one is arranged between the fixing piece and the peeling driving mechanism.
Furthermore, the positioning seat is arranged on the base, the first direction sliding assembly is arranged between the base and the peeling driving mechanism, and the second direction displacement assembly is arranged between the fixing piece and the peeling driving mechanism. The stripping driving mechanism acts on the fixing piece and the base at the same time and is stressed in a balanced manner, the use of a stripping driving mechanism mounting seat is reduced, and the stripping device is more compact in structure. The slider exerts the pressure towards the base to first guide rail, and above-mentioned pressure distributes between the first guide rail of both sides of positioning seat and linear bearing, and single linear bearing is littleer to the pressure of first guide rail, and linear bearing's wear is littleer under the same condition of peeling off, and life is longer.
The Z-direction guide part guides and restrains the displacement of the holding part along the Z direction, and the real-time self-adaptive adjustment of the position of the holding part is ensured.
The sliding block and the first guide rail slide, namely the friction force between the sliding block and the first guide rail is low, the common low-friction structure is that the sliding block and the first guide rail are in rolling fit through rolling parts, optionally, the first guide rail is an optical axis, a linear bearing is arranged in the sliding block, and the linear bearing is sleeved outside the optical axis; or the first guide rail is a slide rail matched with the slide block. In order to facilitate the adjustment of the holding piece along the second direction, the second direction displacement assembly has the same structure with the slide block guide rail in the first guide rail.
Furthermore, the second direction displacement assembly is a sliding assembly, the fixing piece comprises a sliding part and a rotating part, the sliding part is in free sliding fit with the second guide rail, and the rotating cloth is in transmission connection with the sliding part and rotates around the Z axis. The scheme can realize the self-adaptive adjustment of the positions of the fixing piece on the first direction sliding assembly and the second direction displacement assembly along with the different welding strengths of all parts in the welding surface, further improves the stripping efficiency, and is convenient for drawing the welding surface of the special-shaped structure.
In the following description, references to the terms "first/second" merely distinguish between similar items and do not denote a particular order or importance to the items, and "first/second" may be interchanged under certain circumstances or sequences of events to enable embodiments of the invention to be practiced in other than the order described below.
The invention will be further explained with reference to the following schematic examples, which are shown in the accompanying drawings. Various advantages of the present invention will become more apparent from the following description. Like reference numerals in the drawings refer to like parts. The shapes and dimensions of the various elements in the schematic drawings are illustrative only and are not to be construed as embodying the actual shapes, dimensions and absolute positions.
Examples
As shown in fig. 1, in one embodiment, the peeling apparatus for solder quality inspection includes:
the positioning seat 1 is used for positioning and welding workpieces;
a holding member 2 for holding a peeled portion of a welding workpiece;
the stripping driving mechanism 3 is a lead screw nut mechanism which is connected with the fixing piece 2, and the axial direction of the lead screw 31 is arranged along the Z direction and is used for driving the fixing piece 2 to move along the Z direction and the stripping edge of the welding surface to move along the X direction in the XY plane;
and the X-direction sliding assembly 4 is connected with the holding piece 2 and the peeling driving mechanism 3, guides the holding piece 2 to slide along the X direction, and is used for adaptively adjusting the position of the holding piece 2 in the X-direction sliding assembly 4 according to the Z-direction displacement of the holding piece 2.
As shown in fig. 1 and 2, the positioning seat 1 includes four pressing plate units disposed on a concave portion and a concave portion edge on the base 5, the concave portion is adapted to a welding workpiece, and each pressing plate unit includes a pressing plate body 11 and a locking bolt 12; the fixing piece 2 comprises a U-shaped support 21, two movable clamping parts 22 are arranged between two parallel surfaces of the U-shaped support 21, the movable clamping parts 22 are provided with clamping surfaces for increasing friction force, guide rods of the movable clamping parts 22 are respectively arranged in parallel surface through holes of the U-shaped support in a penetrating mode, tightening bolts 23 are further arranged on the parallel surfaces, the end parts of the tightening bolts 23 on the parallel surfaces move relatively, the distance between the two movable clamping parts 22 is reduced, and the two movable clamping parts 22 are driven to clamp the stripping parts; the holding surface of the movable holding portion 22 and the peeled portion held by the holder 2 in the peeling operation are partially perpendicular or nearly perpendicular to the X direction.
As shown in fig. 1, in another embodiment, the method further includes: and the Y-direction displacement assembly 6 is connected with the fixing piece 2 and the peeling driving mechanism 3 and is used for guiding the fixing piece 2 to reset and move along the Y direction which is different from the X direction in the XY plane. The holder 2 is optionally provided with a lock, i.e. to lock the position of the holder 2 in the Y-displacement assembly 6 during the stripping operation.
As shown in fig. 1, in another embodiment, the X-direction sliding assembly 4 includes a first guide rail 41 and a sliding block 42 which are in free sliding fit, a linear bearing is fixedly disposed in the sliding block 42, and both the first guide rail 41 and the positioning seat 1 are fixedly disposed on the base 5; the slide block 42 is connected with the movable guide rail seat through the stripping driving mechanism 3 and drives the movable guide rail seat to move along the Z direction; the Y-direction displacement assembly 6 comprises a second guide rail 61, and the second guide rail 61 is fixedly arranged on a movable guide rail seat 62; the fixing piece 2 is fixedly provided with a linear bearing, the linear bearing is sleeved with the second guide rail 61 and reciprocates along the second guide rail 61, and the first guide rail 41 and the second guide rail 61 are both optical axes.
As shown in fig. 1, in another embodiment, two sides of the positioning seat 1 are respectively provided with a first guide rail 41, the sliding block 42 is a gate type, the sliding block 42 is erected between the first guide rails 41, and the positioning seat 1 and the movable guide rail seat 62 are opposite to each other along the Z direction.
In another embodiment, as shown in fig. 1, the slide block 42 includes two Z-direction guide rods 33 fixedly disposed, and the Z-direction guide rods 33 are inserted into the Z-direction through holes of the movable rail seats 62 to movably connect with the Z-direction guide rods 33.
As shown in fig. 1, in another embodiment, the peeling drive mechanism 3 has a nut 32 of a screw-nut mechanism fixedly connected to a slider 42, a first end of a screw 31 rotatably connected to a movable rail base 62, and the other end connected to a rotary knob 34, and the screw 31 is a trapezoidal screw. The lead angle of the trapezoidal lead screw is smaller than the static friction angle, so that the self-locking function is realized, and the tensile tensioning state of the stripping part is convenient to maintain.
The welding workpiece peeling method based on the above embodiment includes the steps of:
s1: placing a welding workpiece in the concave part of the base 5, screwing the locking bolt 12, and tightly pressing the pressure plate body 11 on the welding workpiece;
s2: adjusting the screw rod nut and the fixing piece 2, adjusting the fixing piece 2 to be opposite to the Z direction of the stripping part, adjusting the puller bolt, and clamping the stripping part by the two movable clamping parts;
s3: the rotating handle is adjusted, the fixing piece 2 is far away from the base 5 along the Z direction, the peeling part is tensioned, the edge of the welding surface is damaged, the welding surface is partially exposed, the peeled part obtained by peeling is partially deformed, the fixing piece 2 moves towards the non-peeled end along the X direction, the peeling angle of the tensioned state of the peeling part before the welding surface is peeled is maintained, and the position of the fixing piece 2 in the X direction is adjusted in a self-adaptive mode along with the change of the edge of the welding surface until the peeling part of the welding workpiece is completely peeled.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A peeling apparatus for welding quality detection, characterized by comprising:
the positioning seat is used for positioning and welding the workpiece;
a holding member for holding the peeled portion of the welding workpiece;
the peeling driving mechanism is connected with the fixing piece and used for driving the fixing piece to move along the Z direction and the peeling edge of the welding surface to move along a first direction in the XY plane;
and the first direction sliding assembly is connected with the fixing piece and the peeling driving mechanism, guides the fixing piece to slide along the first direction, and is used for adaptively adjusting the peeling angle according to the Z-direction displacement of the fixing piece.
2. The peeling apparatus for solder quality inspection according to claim 1, further comprising: and the second direction displacement assembly is connected with the holding piece and the peeling driving mechanism and used for guiding the holding piece to perform reciprocating displacement along a second direction different from the first direction in the XY plane.
3. The peeling apparatus for solder quality inspection according to claim 2, wherein the first direction is perpendicular to the second direction.
4. The peeling device for detecting the welding quality as recited in claim 2, wherein the first direction sliding component comprises a first guide rail and a sliding block which are in free sliding fit, and the first guide rail and the positioning seat are both fixedly arranged on the base; the slide block is connected with the movable guide rail seat through the stripping driving mechanism; the second direction displacement assembly comprises a second guide rail which is fixedly arranged on the movable guide rail seat; the holding piece is connected with the second guide rail and moves back and forth along the second guide rail.
5. The peeling apparatus for detecting the welding quality as claimed in claim 4, wherein at least one first guide rail is respectively disposed on two sides of the positioning seat, and the slider is erected between the first guide rails.
6. The peeling apparatus for solder quality inspection according to claim 4, wherein the slider includes a Z-guide, and the movable rail base is movably connected to the Z-guide.
7. The peeling apparatus for detecting welding quality as claimed in claim 4, wherein the peeling drive mechanism includes a lead screw and nut mechanism, a nut of the lead screw and nut mechanism is fixedly connected to the slider, and a first end of the lead screw is rotatably connected to the movable rail base.
8. The peeling apparatus for solder quality inspection according to claim 7, wherein the slider and/or the first rail is provided with a rolling member, and the slider is in rolling engagement with the first rail via the rolling member.
9. A peeling method, based on the peeling apparatus for solder quality inspection of any one of claims 1 to 8, comprising the steps of:
s1: fixedly connecting the welding workpiece with the positioning seat;
s2: fixedly connecting the stripping part of the welding workpiece with the fixing piece;
s3: the stripping driving mechanism drives the fixing piece to move along the Z direction, the stripping edge of the welding surface moves along the first direction in the XY plane, and meanwhile, the fixing piece in the first direction sliding assembly moves along the first direction in a self-adaptive mode and the stripping angle is adjusted until the stripping part of the welding workpiece is completely stripped.
10. The peeling method according to claim 1, wherein a welding face of the welding workpiece is perpendicular to a Z-direction displacement direction of the holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110651193.7A CN113295136A (en) | 2021-06-11 | 2021-06-11 | Stripping device and stripping method for welding quality detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110651193.7A CN113295136A (en) | 2021-06-11 | 2021-06-11 | Stripping device and stripping method for welding quality detection |
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| Publication Number | Publication Date |
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| CN113295136A true CN113295136A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110651193.7A Pending CN113295136A (en) | 2021-06-11 | 2021-06-11 | Stripping device and stripping method for welding quality detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876689A (en) * | 2022-12-30 | 2023-03-31 | 浙江京华激光科技股份有限公司 | Stripping performance detection equipment and stripping detection method |
-
2021
- 2021-06-11 CN CN202110651193.7A patent/CN113295136A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876689A (en) * | 2022-12-30 | 2023-03-31 | 浙江京华激光科技股份有限公司 | Stripping performance detection equipment and stripping detection method |
| CN115876689B (en) * | 2022-12-30 | 2024-04-05 | 浙江京华激光科技股份有限公司 | Stripping performance detection equipment and stripping detection method |
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