Test welding system

Abstract

The utility model provides a test welding system which comprises a test piece fixing device and a test welding device. The test piece fixing device can fix a test piece, and the test welding device can weld the test piece according to a production line welding program. The test piece fixing device and the test welding device are matched with each other, and the test welding system is arranged outside the line, so that the downtime caused by in-line detection is greatly reduced, the rhythm of a production line is not influenced, and the utilization rate of the production line is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a test welding system. Background Art

[0002] At present, with the rapid development of battery-powered vehicles, battery packs, as the main power source, still have problems with the module process welding technology; traditional battery module welding detection is performed in-line, and the detection welding requires manual switching operation, which has many unstable factors.

[0003] Whether the components such as module cells and buses that need to be welded can achieve the target detection effect depends on the matching degree between the detection scheme scenario and the actual usage scenario. Under the premise of using the same material and the same equipment, and under the premise of achieving the initial inspection and process inspection, there are problems such as how to ensure that the production line rhythm is not affected, how to ensure the simplicity of detection operation, and how to achieve the target detection effect without increasing indirect costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to ensure that the production line rhythm is not affected.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A test welding system comprises a test piece fixing device and a test welding device; the test piece fixing device can fix the test piece, and the test welding device can weld the test piece according to the production line welding procedure.

[0007] Beneficial effect: Through the cooperation between the test piece fixing device and the test welding device, and through the off-line layout of the test welding system, the downtime caused by on-line detection is greatly reduced, ensuring that the production line rhythm is not affected and improving the production line utilization rate.

[0008] Furthermore, the test piece includes a battery cell cover plate and an integrated cover plate electrode piece. The battery cell cover plate is placed in a test piece fixing device, and the integrated cover plate electrode piece is placed on the battery cell cover plate. The test piece fixing device can press the integrated cover plate electrode piece and place it on the battery cell cover plate. The test welding device can weld the integrated cover plate electrode piece to the battery cell cover plate according to the production line welding procedure.

[0009] Beneficial effect: Through the setting of the battery cover and the integrated cover electrode, the integrated cover is welded to the module in the production line. The essential function is to weld the integrated cover electrode to the battery cover. In the test welding system, only the battery cover and the integrated cover electrode need to be placed. It is easy to install and facilitate welding operation.

[0010] Furthermore, the trial welding device includes a manipulator and a laser. The laser is fixed on the output end of the manipulator, and the welding program for controlling the manipulator is the welding program of the production line.

[0011] Beneficial effect: By applying the welding procedure of the production line to the robot, the test pieces welded by the robot are subjected to corresponding performance tests, such as tests on the depth of penetration, the width of penetration, and the pull-off force. If the requirements are met, the production line can be put into production.

[0012] Furthermore, the specimen fixing device includes an adapter plate, a lifting mechanism, a clamping mechanism, and a placement mechanism; the middle part of the adapter plate is hollowed out, a placement mechanism is fixed to the bottom of the adapter plate, and a clamping mechanism and a lifting mechanism are arranged on the left and right sides of the adapter plate. The clamping mechanism is slidably connected to the adapter plate, and the clamping mechanism can pass through the hollow part of the adapter plate and move up and down through the lifting mechanism.

[0013] Furthermore, two guide rails are fixed at intervals along the Z axis on the outer periphery of the adapter plate near the lifting mechanism side, and the clamping mechanism includes a clamping plate and a slide seat. The clamping plate is fixed with a slide seat near the two guide rails, and the slide seat is slidably connected to the guide rails.

[0014] Furthermore, a first mounting seat and a second mounting seat are fixed in sequence on the upper and lower ends of the adapter plate away from the lifting mechanism, and the first mounting seat and the second mounting seat are both provided with threads along the Z-axis. The lifting mechanism includes a screw rod, which passes through the first mounting seat and the second mounting seat in sequence and is connected therein by threaded rotation. A movable plate is fixed on the clamping plate, and the movable plate passes through the hollow part of the adapter plate and is sleeved on the screw rod. The clamping plate can be moved up and down by rotating the screw rod.

[0015] Furthermore, a handle is fixed to the top end of the screw rod, and the screw rod can be rotated on the first mounting seat and the second mounting seat by rotating the handle.

[0016] Beneficial effect: Through the cooperation of the handle, the screw rod and the mounting seats, the lifting mechanism adopts a handle shaking type, which is easy to operate and avoids the trouble of circuit or gas path planning when pneumatic or electric power is used as the power source.

[0017] Furthermore, the clamping plate is provided with a plurality of welding holes, the number and arrangement of the welding holes are determined according to the positions to be welded, and a clamping frame is fixed at the bottom of each welding hole.

[0018] Furthermore, the placement mechanism includes a placement transverse plate, on which a plurality of placement positions are provided along the X-axis, the placement positions corresponding to the welding holes, and the number and size of the placement positions can be manufactured according to the specifications of the specimen.

[0019] Furthermore, pickup positions are provided on the placement horizontal plate at the outer sides of the two groups of placement positions.

[0020] Beneficial effect: The pick-up position is set to place and take out the test pieces.

[0021] The advantages of the utility model are:

[0022] The utility model greatly reduces the downtime caused by in-line detection through the mutual cooperation of the test piece fixing device and the test welding device and the off-line layout of the test welding system, ensures that the production line rhythm is not affected, and improves the production line utilization rate.

[0023] The utility model arranges the battery cover plate and the integrated cover plate pole piece. The integrated cover plate is welded to the module in the production line. The essential function is to weld the integrated cover plate pole piece to the battery cover plate. Only the battery cover plate and the integrated cover plate pole piece need to be placed in the test welding system. The installation is convenient and the welding operation is convenient.

[0024] The utility model applies the welding procedure of the production line to the manipulator, and performs corresponding performance tests on the test pieces welded by the manipulator, such as tests on the depth of penetration, the width of penetration, and the pull-out force. If the requirements are met, the production line can be put into production.

[0025] The utility model adopts a handle-shaking lifting mechanism through the cooperation of the handle, the screw rod and the mounting seats, which is easy to operate and avoids the trouble of circuit or gas path planning when pneumatic or electric power is used as the power source.

[0026] The utility model is used for placing and taking out test pieces by setting a taking-out position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a welding system according to a first embodiment of the present utility model;

[0028] Figure 2 This is a working assembly diagram of a test welding system in Example 1 of the utility model;

[0029] Figure 3 This is a three-dimensional diagram from another perspective of the welding system according to the first embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1

[0032] like Figure 1 As shown, this embodiment provides a trial welding system, including a test piece fixing device 1 and a trial welding device (not shown).

[0033] like Figure 1 , Figure 2 As shown, the specimen fixing device 1 can fix the specimen, and the test welding device can weld the specimen according to the production line welding procedure; the specimen includes a battery cover 31 and an integrated cover electrode 32, the battery cover 31 is placed on the specimen fixing device 1, and the integrated cover electrode 32 is placed on the battery cover 31, and the test welding device can weld the integrated cover electrode 32 to the battery cover 31 according to the production line welding procedure, and then take out the welded specimen, and perform corresponding performance tests on the weld. If the weld penetration, weld width, pull-off force, etc. meet the requirements, it can be manufactured according to the existing production line welding procedure.

[0034] like Figure 1 As shown, the specimen fixing device 1 includes an adapter plate 11, a lifting mechanism 12, a clamping mechanism 13, a placement mechanism 14, and an installation mechanism 15; the middle part of the adapter plate 11 is hollowed out, the bottom of the adapter plate 11 is fixed with a placement mechanism 14, the left and right sides of the adapter plate 11 are provided with a clamping mechanism 13 and a lifting mechanism 12, the lifting mechanism 12 can drive the clamping mechanism 13 to move up and down, and the side of the adapter plate 11 close to the lifting mechanism 12 is fixed with an installation mechanism 15;

[0035] like Figure 1 , Figure 2 , Figure 3As shown, two guide rails 111 are fixed at intervals along the Z axis at the periphery of the adapter plate 11 close to the lifting mechanism 12, and a first mounting seat 112 and a second mounting seat 113 are fixed in sequence at the upper and lower ends of the middle part of the adapter plate 11 away from the lifting mechanism 12. The first mounting seat 112 and the second mounting seat 113 are both provided with threads along the Z axis. The lifting mechanism 12 includes a screw rod 121 and a handle 122. The screw rod 121 passes through the first mounting seat 112 and the second mounting seat 113 in sequence and is connected therein by being rotatably connected therein through threads. A handle 122 is fixed to the top of the screw rod 121. By rotating the handle 122, the screw rod 121 can be rotated on the first mounting seat 112 and the second mounting seat 113. The lifting mechanism 12 adopts a hand The handle is of the shaking type, which is easy to operate and avoids the trouble of circuit or gas path planning when pneumatic or electric power is used as the power source; the clamping mechanism 13 includes a clamping plate 131, a slide seat 132, and a movable plate 133. The clamping plate 131 is fixed with a slide seat 132 near the two guide rails 111, and a movable plate 133 is fixed to the middle of the clamping plate 131. The movable plate 133 passes through the hollow part of the adapter plate 11 and is sleeved on the screw 121. The clamping plate 131 can be moved up and down along the guide rail 111 by rotating the screw 121; four welding holes 134 are provided on the clamping plate 131, which are arranged in groups of two, and the arrangement position is determined according to the position to be welded, and a clamping frame 135 is fixed to the bottom of each welding hole 134;

[0036] The placement mechanism 14 includes a placement horizontal plate 141 and a support vertical plate 142. Two support vertical plates 142 are provided and are both fixed near the bottom of the guide rail 111. The placement horizontal plate 141 is fixed between the support vertical plates 142. Two groups of placement positions 143 are opened on the placement horizontal plate 141 along the X-axis. The placement positions 143 correspond to the welding holes 134 and are used to place the test pieces. The number and size of the placement positions 143 can be made according to the specifications of the test pieces. The placement horizontal plate 141 is provided with pick-up positions 144 on the outside of the two groups of placement positions 143 for placing and taking the test pieces.

[0037] The mounting mechanism 15 includes a connecting plate 151 and a mounting plate 152. Two connecting plates 151 are provided and are respectively fixed on the front and rear side walls of the adapter plate 11. The mounting plate 152 is fixed between the connecting plates 151. The mounting mechanism 15 is fixed on a side close to the lifting mechanism 12. Four mounting holes 153 are provided on the mounting plate 152, which has high versatility and good adaptability.

[0038] like Figure 2 As shown, the test welding device includes a manipulator and a laser. The laser is fixed on the output end of the manipulator. The welding program of the manipulator is controlled to be the welding program of the production line. The laser can pass through the welding hole 134 and the clamping frame 135 to weld the test piece.

[0039] The specific implementation steps are as follows:

[0040] S1 After fixing the position of the whole set of tooling at the appropriate position of the welding station through the positioning pin hole, bolts are installed at the mounting holes 153 of the mounting mechanism 15 to fix the whole specimen fixture 1 to the target position;

[0041] S2 takes the test piece and places it on the placement position 143, and then confirms that the position and direction are placed correctly;

[0042] S3: Manually shake the handle 122 to drive the clamping mechanism 13 to slowly press down until the clamping frame 135 and the specimen are in close contact with each other, and then stop shaking the handle 122;

[0043] S4 copies and edits the robot inspection welding program according to the production line welding program. After the technician confirms that the test welding state meets the target design state, the welding program is saved. This operation is an existing technology.

[0044] S5 uses the laser on the robot to weld the test piece through the welding hole 134 and the clamping frame 135 according to the production line welding procedure;

[0045] After S6 welding is completed, the handle 122 is manually shaken to drive the clamping mechanism 13 to rise to a safe position, and the welded test piece is taken out for corresponding performance tests, such as the test of the depth of penetration, the width of penetration, and the pull-off force. If the requirements are met, the production line can be put into production;

[0046] By arranging the test welding system outside the line, the downtime caused by on-line detection is greatly reduced, the utilization rate of the production line is improved, and equipment damage or other indirect costs caused by manual misoperation are avoided; the test piece fixing device 1 is an integral independent tooling, which can realize the solidification of the detection welding program after being installed and fixed at the welding station. Automatic welding detection can be realized for each first inspection or process inspection, which ensures the consistency of the detection method during the production process, avoids information errors caused by inconsistent detection means, and indirectly reduces the number of scrapped products and the production cost.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trial welding system, characterized in that: It comprises a test piece fixing device (1) and a test welding device; The test piece fixing device (1) can fix the test piece, and the test welding device can weld the test piece according to the welding procedure of the production line; the test piece fixing device (1) comprises an adapter plate (11), a lifting mechanism (12), a clamping mechanism (13), and a placement mechanism (14); the middle part of the adapter plate (11) is hollowed out, the bottom of the adapter plate (11) is fixed with a placement mechanism (14), and the left and right sides of the adapter plate (11) are provided with a clamping mechanism (13) and a lifting mechanism (12); the clamping mechanism (13) is slidably connected to the adapter plate (11), and the clamping mechanism (13) can pass through the hollow part of the adapter plate (11) and move up and down through the lifting mechanism (12).

2. A trial welding system according to claim 1, characterized in that: The test piece comprises a cell cover plate (31) and an integrated cover plate electrode piece (32); the cell cover plate (31) is placed in a test piece fixing device (1); the integrated cover plate electrode piece (32) is placed on the cell cover plate (31); the test piece fixing device (1) can press the integrated cover plate electrode piece (32) onto the cell cover plate (31); and the test welding device can weld the integrated cover plate electrode piece (32) onto the cell cover plate (31) according to a production line welding procedure.

3. A trial welding system according to claim 1, characterized in that: The trial welding device comprises a manipulator and a laser. The laser is fixed on the output end of the manipulator, and the welding program of the manipulator is controlled to be the welding program of the production line.

4. A trial welding system according to claim 1, characterized in that: Two guide rails (111) are fixed at intervals along the Z axis on the outer periphery of the adapter plate (11) near the lifting mechanism (12); the clamping mechanism (13) comprises a clamping plate (131) and a slide seat (132); the clamping plate (131) is fixed with a slide seat (132) near the two guide rails (111); and the slide seat (132) is slidably connected to the guide rail (111).

5. A trial welding system according to claim 4, characterized in that: A first mounting seat (112) and a second mounting seat (113) are fixed in sequence to the upper and lower ends of the adapter plate (11) away from the lifting mechanism (12); the first mounting seat (112) and the second mounting seat (113) are both provided with threads along the Z axis; the lifting mechanism (12) comprises a screw rod (121); the screw rod (121) passes through the first mounting seat (112) and the second mounting seat (113) in sequence and is rotatably connected thereto by means of threads; a movable plate (133) is fixed to the clamping plate (131); the movable plate (133) passes through a hollow portion of the adapter plate (11) and is sleeved on the screw rod (121); the clamping plate (131) can be moved up and down by the rotation of the screw rod (121).

6. A trial welding system according to claim 5, characterized in that: A handle (122) is fixed to the top end of the screw rod (121), and the screw rod (121) can be rotated on the first mounting seat (112) and the second mounting seat (113) by rotating the handle (122).

7. A trial welding system according to claim 5, characterized in that: The clamping plate (131) is provided with a plurality of welding holes (134) extending therethrough. The number and arrangement of the welding holes (134) are determined according to the positions to be welded. A clamping frame (135) is fixed at the bottom of each welding hole (134).

8. A trial welding system according to claim 7, characterized in that: The placement mechanism (14) comprises a placement transverse plate (141), on which a plurality of groups of placement positions (143) are provided along the X-axis, the placement positions (143) corresponding to the welding holes (134), and the number and size of the placement positions (143) can be manufactured according to the specifications of the test piece.

9. A trial welding system according to claim 8, characterized in that: The placement transverse plate (141) is provided with a pickup position (144) on the outer sides of the two groups of placement positions (143).

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