Jig lifting and positioning mechanism, welding clamping assembly and welding device

Abstract

The present application discloses a jig lifting and positioning mechanism, a welding clamping assembly and a welding device. The jig lifting and positioning mechanism includes a driving base and a jig support plate, the jig support plate is mounted on the driving base, a positioning structure for positioning the jig is provided on the jig support plate, and the driving base is used to drive the jig support plate to lift vertically and drive the jig support plate to rotate horizontally at a preset angle. The technical solution provided by the present application can solve the problem in the prior art that the production efficiency is low and it is not conducive to mass production due to the need to manually adjust the laser welding position of the workpiece.

Description

Technical Field

[0001] The present application relates to the field of multi-station automation technology, and in particular to a jig lifting and positioning mechanism, a welding clamping assembly and a welding device. Background Art

[0002] With the progress and development of science and technology, laser has been used as a tool in various industries. Laser welding is an efficient and precise welding method that uses a high energy density laser beam as a heat source.

[0003] In the workpiece manufacturing line, the laser welding position of the workpiece needs to be adjusted manually, resulting in low production efficiency and not conducive to mass production. Summary of the invention

[0004] The present application provides a jig lifting and positioning mechanism, a welding clamping assembly and a welding device, which can solve the problem in the prior art that the production efficiency is low and is not conducive to large-scale manufacturing due to the need to manually adjust the laser welding position of the workpiece.

[0005] In a first aspect, a jig lifting and positioning mechanism is provided, comprising a driving base and a jig support plate, wherein the jig support plate is mounted on the driving base, a positioning structure for positioning the jig is provided on the jig support plate, and the driving base is used to drive the jig support plate to vertically lift and lower, and to drive the jig support plate to horizontally rotate at a preset angle.

[0006] In the above scheme, a jig lifting and positioning mechanism is provided, which is applied to the workpiece manufacturing assembly line. When the jig loaded with the workpiece moves to the jig support plate, the jig is positioned by the positioning structure, and the driving base drives the jig support plate to rise so that the jig is lifted up. At this time, the jig loaded with the workpiece is stationary, and the workpiece can be welded by a welding device fixed on the assembly line. Since it is necessary to weld at different positions of the workpiece, and the position of the welding device is fixed, the jig support plate (i.e., the workpiece) can be driven by the driving base to rotate at a preset angle so that the pre-welding point on the workpiece reaches a position that can be welded by the welding device, thereby welding, and under unmanned operation, the welding points of the workpiece can be welded by the welding device, which can effectively improve production efficiency and facilitate large-scale manufacturing. Among them, taking the battery module as an example, since multiple surfaces of the battery module need to be welded, the jig lifting and positioning mechanism described above is used to drive the jig support plate to rotate at a preset angle, so that multiple surfaces of the battery module can be welded by the welding device under unmanned operation.

[0007] In one possible implementation, the driving base includes a base, a mounting plate, a first driving device and a second driving device. The first driving device is used to drive the mounting plate to vertically lift and lower relative to the base. The second driving device is arranged on the mounting plate and connected to the jig support plate. The second driving device is used to drive the jig support plate to rotate horizontally at a preset angle relative to the mounting plate.

[0008] In the above scheme, a possible specific structure of the driving base is provided, and the driving base includes a base, a mounting plate, a first driving device and a second driving device, wherein the mounting plate can be vertically lifted relative to the base under the drive of the first driving device, and the jig support plate is connected to the mounting plate through the second driving device, so that the jig support plate can be vertically lifted relative to the base, thereby completing the lifting action. The jig support plate can be rotated at a preset angle relative to the mounting plate under the drive of the second driving device, so that the pre-welding point of the workpiece can be rotated to the position of the welding device, so that welding can be completed at different welding positions of the workpiece.

[0009] Optionally, in a possible implementation, a slide rail extending up and down is provided on the base, and the mounting plate is slidably engaged with the slide rail.

[0010] Optionally, in a possible implementation, the second driving device is a direct drive motor;

[0011] Alternatively, the second driving device includes a reduction motor and a divider, the input shaft of the divider is connected to the reduction motor, and the output shaft of the divider is connected to the jig support plate.

[0012] Optionally, in a possible implementation manner, the positioning structure is a positioning pin.

[0013] In the above solution, a specific structure of a positioning structure is provided, wherein the positioning structure is a positioning pin, and the positioning pin can cooperate with the positioning groove on the bottom surface of the fixture.

[0014] Optionally, in a possible implementation, the preset angle is 180 degrees.

[0015] In the second aspect, a welding clamping assembly is provided, comprising a clamping fixture mechanism, an auxiliary clamping mechanism and the jig lifting and positioning mechanism of any one of the first aspects, wherein the clamping fixture mechanism and the auxiliary clamping mechanism are respectively arranged on the sides of the jig lifting and positioning mechanism, and are used to cooperate with the workpiece on the clamping fixture, and the clamping fixture mechanism is used to clamp the workpiece to be welded to the welding position of the workpiece.

[0016] In the above scheme, the inventor found that in the existing manufacturing assembly line, in the welding process, the welding effect is often poor and the efficiency is low. For this reason, the inventor designed the welding clamping assembly described above. The welding clamping assembly includes a clamping fixture mechanism, an auxiliary clamping mechanism and a jig lifting and positioning mechanism. Among them, the jig lifting and positioning mechanism plays a lifting and rotating role, and the clamping fixture mechanism and the auxiliary clamping mechanism are respectively arranged on the side of the jig lifting and positioning mechanism, which are used to cooperate with the workpiece clamping on the jig. Among them, when the jig loaded with the workpiece moves to the jig lifting and positioning mechanism, the jig is lifted and positioned. At this time, the auxiliary clamping mechanism and the clamping fixture mechanism move toward the jig respectively, so that the workpiece is clamped by the auxiliary clamping mechanism and the clamping fixture mechanism, and at the same time, the workpiece to be welded is also clamped by the clamping fixture to the welding position of the workpiece, and the workpiece can be welded by the welding device fixed on the assembly line. Since welding needs to be performed at different positions of the workpiece, and the position of the welding device is fixed, the position of the workpiece needs to be changed: the auxiliary clamping mechanism and the clamping fixture mechanism are reset, that is, away from the fixture, and the fixture support plate (i.e., the workpiece) is driven to rotate at a preset angle through the driving base. After rotation, the auxiliary clamping mechanism and the clamping fixture mechanism repeat the previous clamping step to complete the clamping of the workpiece and the clamping of the welding parts for welding. The above processes can all be completed without human operation, so that the workpiece can be effectively positioned and all welding parts can be welded, which can effectively improve production efficiency and facilitate large-scale manufacturing.

[0017] Optionally, in a possible implementation, the clamping tooling mechanism includes a first manipulator and a first clamping member, the first clamping member is connected to the execution end of the first manipulator, and the first clamping member is used to clamp the workpiece to be welded to the welding position of the workpiece.

[0018] Optionally, in a possible implementation, the auxiliary clamping mechanism includes a second manipulator and a second clamping member, and the second clamping member is connected to the execution end of the second manipulator.

[0019] In a third aspect, a welding device is provided, comprising a welding assembly and a welding clamping assembly according to any one of the second aspects, wherein the welding assembly comprises a driving member and a welding head, wherein the welding head is connected to an execution end of the driving member.

[0020] The above scheme provides a welding device, which can effectively position the workpiece and weld all welding points without human operation, which can effectively improve production efficiency and facilitate mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional schematic diagram of the jig lifting and positioning mechanism in the embodiment of the present application at a first viewing angle;

[0023] Figure 2 It is a three-dimensional schematic diagram of the jig lifting and positioning mechanism in the embodiment of the present application at a second viewing angle;

[0024] Figure 3 This is a three-dimensional schematic diagram of the welding clamping assembly in the embodiment of the present application at a first viewing angle;

[0025] Figure 4 This is a three-dimensional schematic diagram of the welding clamping assembly in the embodiment of the present application at a second viewing angle;

[0026] Figure 5 This is a three-dimensional schematic diagram of the welding and clamping assembly and the battery module in the embodiment of the present application;

[0027] Figure 6 for Figure 5 The enlarged view of the middle VI;

[0028] Figure 7 This is a three-dimensional schematic diagram of a welding device in an embodiment of the present application;

[0029] Figure 8 It is a three-dimensional schematic diagram of another welding device in an embodiment of the present application.

[0030] Icons: 10-jig lifting and positioning mechanism; 10a-jig; 11-driving base; 12-jig support plate; 110-base; 111-mounting plate; 112-first driving device; 113-second driving device; 120-positioning structure; 1100-slide rail; 1110-sliding block; 1120-connecting block;

[0031] 20-welding clamping assembly; 20a-battery module; 20b-connecting piece; 21-clamping fixture mechanism; 22-auxiliary clamping mechanism; 210-first manipulator; 211-first clamping member; 220-second manipulator; 221-second clamping member; 2100-Y-axis single-axis robot; 2101-Z-axis single-axis robot; 2102-X-axis single-axis robot; 2103-sliding connecting plate; 2210-sliding bracket; 2211-clamping plate;

[0032] 30 - welding device; 31 - welding assembly; 310 - driving member; 311 - welding head; 312 - sensor; 313 - camera; 314 - light source. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0036] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0037] The present embodiment provides a jig lifting and positioning mechanism 10, which can solve the problem in the prior art that the laser welding position of the workpiece needs to be manually adjusted, resulting in low production efficiency and being unfavorable for mass production.

[0038] Please refer to Figure 1 and Figure 2 , Figure 1 The three-dimensional structure of the fixture lifting and positioning mechanism 10 at a first viewing angle is shown. Figure 2 The three-dimensional structure of the fixture lifting and positioning mechanism 10 at a second viewing angle is shown.

[0039] The fixture lifting and positioning mechanism 10 includes a driving base 11 and a fixture support plate 12. The fixture support plate 12 is mounted on the driving base 11. The fixture support plate 12 is provided with a device for positioning the fixture 10a (at Figure 7 10a) shows a positioning structure 120 of the jig 10a), and the driving base 11 is used to drive the jig support plate 12 to vertically rise and fall, and to drive the jig support plate 12 to horizontally rotate at a preset angle.

[0040] Among them, the jig lifting and positioning mechanism 10 is applied to the workpiece manufacturing assembly line. When the jig 10a loaded with the workpiece moves above the jig support plate 12, the driving base 11 drives the jig support plate 12 to rise so that the jig 10a is lifted up, and at the same time, the jig 10a is positioned on the jig support plate 12 by the positioning structure 120. At this time, the jig 10a loaded with the workpiece is stationary, and the workpiece can be welded by a welding device fixed on the assembly line. Since welding is required at different positions of the workpiece, the jig support plate 12 (i.e., the workpiece) can be driven by the driving base 11 to rotate at a preset angle, so that the pre-welding point on the workpiece is adjusted to a position that can be welded by the welding device, thereby performing welding. Under unmanned operation, the welding points of the workpiece can all be welded by the welding device, which can effectively improve production efficiency and facilitate large-scale manufacturing. Among them, taking the battery module as an example, since multiple surfaces of the battery module need to be welded, the jig lifting and positioning mechanism 10 described above drives the jig support plate 12 to rotate at a preset angle, so that multiple surfaces of the battery module can be welded by the welding device without human operation (the process flow of battery module welding will be described in detail below).

[0041] Optionally, in a possible implementation, the driving base 11 includes a base 110, a mounting plate 111, a first driving device 112 and a second driving device 113, the first driving device 112 is used to drive the mounting plate 111 to vertically lift and lower relative to the base 110, the second driving device 113 is arranged on the mounting plate 111 and connected to the jig support plate 12, and the second driving device 113 is used to drive the jig support plate 12 to rotate horizontally at a preset angle relative to the mounting plate 111.

[0042] Among them, in the above-mentioned embodiment, a possible specific structure of the driving base 11 is provided, and the driving base 11 includes a base 110, a mounting plate 111, a first driving device 112 and a second driving device 113, wherein the mounting plate 111 can be vertically lifted relative to the base 110 under the drive of the first driving device 112, and the jig support plate 12 is connected to the mounting plate 111 through the second driving device 113, so that the jig support plate 12 can be vertically lifted relative to the base 110, thereby completing the lifting action. The jig support plate 12 can rotate at a preset angle relative to the mounting plate 111 under the drive of the second driving device 113, so that the pre-welding point of the workpiece can be rotated to the position of the welding device, so that welding can be completed at different welding positions of the workpiece.

[0043] It should be noted that in the above embodiment, the jig support plate 12 is directly rotated by the second drive device 113, and is indirectly lifted and lowered by the first drive device 112 (the first drive device 112 directly drives the mounting plate 111 to be lifted and lowered, thereby indirectly driving the jig support plate 12 to be lifted and lowered). In other specific embodiments, the jig support plate 12 can be directly driven to complete the lifting action, and indirectly driven to complete the rotational movement, such as the mounting plate 111 can rotate relative to the base 110, and the jig support plate 12 can be lifted and lowered relative to the mounting plate 111.

[0044] Optionally, in a possible implementation, a slide rail 1100 extending up and down is provided on the base 110 , and the mounting plate 111 is slidably matched with the slide rail 1100 .

[0045] Please note that, see Figure 1 and Figure 2 There are two bases 110, and the two bases 110 are located on both sides of the mounting plate 111. The side wall of the mounting plate 111 is provided with a slider 1110, and the slider 1110 is slidably matched with the slide rail 110. With the cooperation of the two bases 110, the mounting plate 111 can be stably raised and lowered. Figure 1 and Figure 2 It can be seen that each base 110 is provided with two parallel slide rails 1100, and the side wall of one side of the mounting plate 111 is provided with two sliders 1110, so the mounting plate 111 and the base 110 are designed with four sliders and four slide rails, which is conducive to the mounting plate 111 to stably complete the lifting action between the two bases 110.

[0046] Among them, optionally, in a possible implementation, the first driving device 112 is a cylinder, the cylinder body of the cylinder is fixed to the mounting plate 111, and the telescopic rod of the cylinder passes through the lower end surface of the mounting plate 111 and is fixedly connected to the support member. It should be noted that the support member referred to above can be a support plate structure, which can be included in the driving base 11, or the support member can be a frame in the workpiece assembly line. The significance of the support member is to enable the cylinder to provide a reaction force for the cylinder when it is extended and retracted, so that the cylinder body of the cylinder can push or pull the mounting plate 111, so that the mounting plate 111 can complete the lifting action. At the same time, by Figure 2 It can be seen that a connecting block 1120 is provided on the end surface of the telescopic rod of the cylinder, and the connecting block 1120 is used for fixed connection with the supporting member.

[0047] At the same time, please refer to Figure 1 or Figure 2The number of cylinders is two, and the two cylinders are located on both sides of the second driving device 113, so that the layout of the driving base 11 is reasonable and conducive to full utilization of space. The two cylinders are located on both sides of the mounting plate 111, so that the mounting plate 111 can be stably lifted and lowered under the action of the two cylinders.

[0048] At the same time, it should be noted that in other specific embodiments, the first drive device 112 can also be other structures that can drive the mounting plate 111 to complete the lifting action. For example, the first drive device 112 can also include a motor and a screw nut lifting structure driven by the motor.

[0049] Optionally, in a possible implementation, the second driving device 113 is a direct drive motor. Figure 1 and Figure 2 , we can see the position of the direct drive motor, which is located at the center of the mounting plate 111, and the center of the fixture support plate 12 also coincides with the output shaft of the direct drive motor. The direct drive motor is also called a DD (direct driver) motor, and the direct drive motor can make the fixture support plate 12 rotate at a preset angle.

[0050] Meanwhile, in other specific embodiments, the second driving device 113 may also include a reduction motor and a divider, the input shaft of the divider is connected to the reduction motor, and the output shaft of the divider is connected to the jig support plate 12. The use of the divider enables the jig support plate 12 to complete the rotation of a preset angle.

[0051] It should be noted that the workpiece to be welded in this embodiment is a battery module, and the preset angle is 180 degrees, so that the fixture 10a can be rotated 180 degrees so that the two opposite surfaces of the battery module can be welded (the process flow of battery module welding will be described in detail below).

[0052] It should be noted that, in other specific implementations, when the workpiece to be welded is other structures, the preset angle is also adjusted according to the requirements of the workpiece.

[0053] Optionally, in a possible implementation, the positioning structure 120 is a positioning pin.

[0054] See also Figure 1 and Figure 2 , the number of positioning pins is two, and the two positioning pins are arranged diagonally. The positioning pins can cooperate with the positioning grooves on the bottom surface of the fixture 10a. It should be noted that in other specific embodiments, the number and layout positions of the positioning pins are not limited, and they should be designed according to the type of fixture to achieve the positioning of the fixture.

[0055] It should be noted that this embodiment also provides a welding clamping assembly 20.

[0056] See also Figure 3 and Figure 4 , Figure 3 The three-dimensional structure of the welding clamping assembly 20 in this embodiment is shown in the first viewing angle. Figure 4 The three-dimensional structure of the welding clamping assembly 20 in this embodiment is shown at a second viewing angle.

[0057] The welding clamping assembly 20 includes a clamping fixture mechanism 21, an auxiliary clamping mechanism 22, and a jig lifting and positioning mechanism 10 provided by any one of the embodiments described above. The clamping fixture mechanism 21 and the auxiliary clamping mechanism 22 are respectively arranged on the sides of the jig lifting and positioning mechanism 10, and are used to cooperate with the workpiece on the clamping fixture 10a, and the clamping fixture mechanism 21 is used to clamp the workpiece to be welded to the welding position of the workpiece.

[0058] Among them, the inventor found that in the existing manufacturing line, in the welding process, the welding effect is often poor and the efficiency is low. For this reason, the inventor designed the welding clamping assembly 20 described above. The welding clamping assembly 20 includes a clamping fixture mechanism 21, an auxiliary clamping mechanism 22 and a jig lifting and positioning mechanism 10. Among them, the jig lifting and positioning mechanism 10 plays the role of lifting and rotating the jig 10a, and the clamping fixture mechanism 21 and the auxiliary clamping mechanism 22 are respectively arranged on both sides of the jig lifting and positioning mechanism 10, for cooperating with the workpiece on the clamping jig. Among them, when the jig 10a loaded with the workpiece moves to the top of the jig lifting and positioning mechanism 10, the jig 10a is lifted and positioned. At this time, the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21 move toward the fixture 10a respectively, so that the workpiece is clamped by the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21, and at the same time, the workpiece to be welded is also clamped by the clamping fixture mechanism 21 at the welding position of the workpiece, and the workpiece can be welded by the welding device fixed on the assembly line.

[0059] Since welding is required at different positions of the workpiece, the position of the workpiece needs to be changed: the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21 are reset (i.e., away from the fixture 10a), and the fixture support plate 12 (i.e., the workpiece) is driven to rotate at a preset angle by the driving base 11. After rotation, the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21 repeat the previous clamping step to complete the clamping of the workpiece and the clamping of the welding point, and then weld. The above processes can all be completed without human operation, so that the workpiece can be effectively positioned and all welding points can be welded, which can effectively improve production efficiency and facilitate mass production.

[0060] It should be noted that in this embodiment, the clamping fixture mechanism 21 and the auxiliary clamping mechanism 22 are respectively arranged on both sides of the fixture lifting and positioning mechanism 10. In other embodiments, the auxiliary clamping mechanism 22 can also be arranged above the fixture lifting and positioning mechanism 10, so that the clamping fixture mechanism 21 and the auxiliary clamping mechanism 22 can cooperate with each other to clamp the workpiece on the fixture.

[0061] Optionally, in a possible implementation, the clamping tooling mechanism 21 includes a first manipulator 210 and a first clamping member 211, the first clamping member 211 is connected to the execution end of the first manipulator 210, and the first clamping member 211 is used to clamp the workpiece to be welded to the welding position of the workpiece.

[0062] Among them, see Figure 3 and Figure 4 The first manipulator 210 includes a Y-axis single-axis robot 2100, a Z-axis single-axis robot 2101, and an X-axis single-axis robot 2102. The Y-axis single-axis robot 2100 drives the Z-axis single-axis robot 2101 to move along the Y-axis direction, and the Z-axis robot drives the X-axis robot to move along the Z-axis direction. The execution end of the X-axis single-axis robot 2102 is connected to the first clamping member 211, and drives the first clamping member 211 to move along the X-axis direction. The first clamping member 211 can move in the X-axis, Y-axis, and Z-axis directions under the drive of the first manipulator 210. In the X-axis direction, it can abut against the workpiece to cooperate with the auxiliary clamping mechanism 22 to clamp and position the workpiece. At the same time, it can select the correct position in the three-dimensional space defined by the X-axis, Y-axis, and Z-axis to clamp the workpiece to be welded at the welding position of the workpiece (wherein, in Figure 3 , the directions of the X-axis, Y-axis and Z-axis are shown in FIG. 1 ). It should be noted that, in other specific embodiments, the first manipulator 210 may also be a structure that enables the execution end to move in a three-dimensional space defined by the X-axis, Y-axis and Z-axis, such as a six-axis robot.

[0063] Among them, see Figure 3 and Figure 4 The first manipulator 210 further includes a sliding connection plate 2103. The Y-axis single-axis robot 2100 drives the sliding connection plate 2103 to move, and two Z-axis single-axis robots 2101 are respectively fixed on both sides of the sliding connection plate 2103, and the two Z-axis single-axis robots 2101 jointly drive the X-axis single-axis robot 2102 to move.

[0064] Optionally, in a possible implementation, the auxiliary pressing mechanism 22 includes a second manipulator 220 and a second pressing member 221 , and the second pressing member 221 is connected to an execution end of the second manipulator 220 .

[0065] The second clamping member 221 includes a sliding bracket 2210 and a clamping plate 2211. The execution end of the second manipulator 220 is connected to the sliding bracket 2210, and the end surface of the sliding bracket 2210 is connected to the clamping plate 2211. The second manipulator 220 drives the sliding bracket 2210 to move along the Y-axis direction so that the clamping plate 2211 contacts the workpiece to cooperate with the clamping fixture mechanism 21 to clamp and position the workpiece. In this embodiment, the second manipulator 220 is a single-axis robot.

[0066] It should be noted that, in other specific embodiments, the mechanism for outputting the power of the auxiliary pressing mechanism 22 may be other devices capable of reciprocating in the Y-axis direction, such as a cylinder, a screw structure, and the like.

[0067] It should be noted that in this embodiment, the workpiece on which the welding and clamping assembly 20 acts is the battery module 20a (see Figure 5 ), the part to be welded is the connecting piece 20b, and the first pressing piece 211 is used to press the connecting piece 20b onto the pole of the battery module 20a.

[0068] See also Figure 5 and Figure 6 , Figure 5 The three-dimensional structure of the welding and clamping assembly 20 and the battery module 20a in this embodiment is shown. Figure 6 for Figure 5 Enlarged view of point VI in the middle.

[0069] When the workpiece to which the welding clamping assembly 20 acts is a battery module 20a, the specific process is as follows: when the fixture 10a loaded with the battery module 20a moves to the top of the fixture lifting and positioning mechanism 10, the fixture 10a is lifted and positioned. At this time, the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21 move toward the fixture 10a respectively, and the clamping fixture mechanism 21 moves to the welding position on the workpiece (at this time, the clamping fixture mechanism 21 will press the connecting piece 20b on the battery module 20a onto the pole of the battery module 20a, wherein, Figure 5 The connecting piece 20b indicated in the figure serves as a schematic diagram), the battery module 20a is clamped by the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21, and the connecting piece 20b and the pole are welded by a laser welding assembly fixed on the assembly line.

[0070] Since the poles and connecting pieces 20b on the two opposite sides of the battery module 20a need to be welded, and the position of the welding device is fixed, the position of the workpiece needs to be changed: the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21 are reset respectively (i.e., away from the battery module 20a), and the driving base 11 drives the jig support plate 12 (i.e., the battery module 20a) to rotate 180 degrees. After rotation, the auxiliary clamping mechanism 22 and the clamping fixture mechanism 21 repeat the previous clamping step to complete the clamping of the workpiece and the clamping of the welded parts and the welding position, and the laser welding assembly is welded.

[0071] It should be noted that, in other specific embodiments, the workpiece acted upon by the welding clamping assembly 20 may also be other workpieces, and the welding process may be performed with reference to the above description.

[0072] It should be noted that a welding device 30 is also provided in this embodiment, including a welding assembly 31 and a welding clamping assembly 20 in any one of the embodiments described above, the welding assembly 31 includes a driving member 310 and a welding head 311, and the welding head 311 is connected to the execution end of the driving member 310.

[0073] The welding device 30 can effectively position the workpiece and weld all welding points without human operation, which can effectively improve production efficiency and facilitate mass production.

[0074] It should be noted that, in the welding device 30 provided in this embodiment, the driving member 310 can be a six-axis robot or a single-axis robot assembly. The welding head 311 can be a laser welding head.

[0075] See also Figure 7 , Figure 7 The specific structure of a welding device 30 in this embodiment is shown. Figure 7 , the three-dimensional structure of the welding device 30 is shown when the driving member 310 is a six-axis robot.

[0076] See also Figure 8 , Figure 8 The specific structure of another welding device 30 in this embodiment is shown. Figure 8 , the three-dimensional structure of the welding device 30 is shown when the driving member 310 is a single-axis robot assembly. The welding head 311 can move in the X-axis, Y-axis and Z-axis directions under the drive of the single-axis robot assembly.

[0077] It should be noted that in Figure 6It can be seen that, similar to the existing welding assembly, the welding assembly 31 in this embodiment further includes a visual system and a sensor 312 (laser displacement sensor) arranged at the execution end of the driving member 310, wherein the visual system includes a camera 313 and a light source 314. The visual system and the sensor 312 are used for accurate positioning and position determination of the welding position.

[0078] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding clamping assembly, used in a workpiece manufacturing line, characterized in that: It includes a clamping tooling mechanism, an auxiliary clamping mechanism, and a fixture lifting and positioning mechanism; The jig lifting and positioning mechanism comprises a driving base and a jig support plate, the jig support plate is mounted on the driving base, a positioning structure for positioning the jig is provided on the jig support plate, and the driving base is used to drive the jig support plate to vertically lift and lower, and to drive the jig support plate to horizontally rotate at a preset angle; therefore, the jig support plate is driven by the driving base to lift the jig, so that the jig loaded with the workpiece is stationary, so that the workpiece is welded by a welding device fixed on the assembly line; The clamping fixture mechanism and the auxiliary clamping mechanism are respectively arranged on both sides of the jig lifting and positioning mechanism, and are used to cooperate with the workpiece on the clamping jig. When the jig loaded with the workpiece moves to the top of the jig lifting and positioning mechanism, the jig is lifted and positioned. At this time, the auxiliary clamping mechanism and the clamping fixture mechanism move toward the jig respectively, so that the workpiece is clamped by the auxiliary clamping mechanism and the clamping fixture mechanism. At the same time, the workpiece to be welded is also clamped at the welding position of the workpiece by the clamping fixture mechanism, and the workpiece is welded by the welding device fixed on the assembly line.

2. The welding clamping assembly according to claim 1, characterized in that: The driving base includes a base, a mounting plate, a first driving device and a second driving device. The first driving device is used to drive the mounting plate to vertically lift and lower relative to the base. The second driving device is arranged on the mounting plate and connected to the jig support plate. The second driving device is used to drive the jig support plate to rotate horizontally at a preset angle relative to the mounting plate.

3. The welding clamping assembly according to claim 2, characterized in that: The base is provided with a slide rail extending up and down, and the mounting plate is slidably matched with the slide rail.

4. The welding clamping assembly according to claim 2, characterized in that: The second driving device is a direct drive motor; Alternatively, the second driving device includes a reduction motor and a divider, the input shaft of the divider is connected to the reduction motor, and the output shaft of the divider is connected to the jig support plate.

5. The welding clamping assembly according to claim 1, characterized in that: The positioning structure is a positioning pin.

6. The welding clamping assembly according to claim 1, characterized in that: The preset angle is 180 degrees.

7. The welding clamping assembly according to claim 1, characterized in that: The clamping fixture mechanism includes a first manipulator and a first clamping member, wherein the first clamping member is connected to an execution end of the first manipulator, and the first clamping member is used to clamp the workpiece to be welded at a welding position of the workpiece.

8. The welding clamping assembly according to claim 1, characterized in that: The auxiliary pressing mechanism includes a second manipulator and a second pressing member, and the second pressing member is connected to the execution end of the second manipulator.

9. A welding device, comprising a welding assembly and the welding clamping assembly according to any one of claims 1 to 8, wherein the welding assembly comprises a driving member and a welding head, and the welding head is connected to the execution end of the driving member.

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