Clamp tool for battery tray, material taking mechanical arm and welding work station

Abstract

The utility model relates to the technical field of battery tray production, in particular to a clamp tool for a battery tray, a material taking mechanical arm and a welding work station. The clamp tool comprises a base, and a plurality of positioning blocks and a plurality of side pushing mechanisms are fixedly installed on the base. The positioning blocks are sequentially arranged in the annular direction of the annular frame so as to be matched to form a positioning protrusion connected to the inner side of the annular frame in a sleeved mode. The side pushing mechanism comprises single-side-face side pushing pieces only abutting against one outer side face of the annular frame and double-side-face side pushing pieces capable of abutting against two outer side faces at the bent position of the annular frame at the same time, and the single-side-face side pushing pieces and the double-side-face side pushing pieces are sequentially arranged in the annular direction of the annular frame in a staggered mode. The abutting faces, abutting against the annular frame, of the side pushing mechanisms are matched to form an outer side positioning face. And the outer side positioning surface and the inner side positioning surface formed by the positioning bulge are matched to form a clamping groove for clamping the annular frame from two sides. Lateral deformation of the annular frame in the welding process can be effectively reduced, so that the welding stability is improved, and the welding effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery tray production technical field, concretely is a kind of clamp tool for battery tray, material taking mechanical arm and welding workstation. BACKGROUND

[0002] Water-cooled plate is one of important components of vehicle-mounted power battery heat dissipation, usually adopts friction stir welding to be welded on annular frame, to constitute battery tray.And in the process of welding, usually adopt lower pressure piece to press water-cooled plate on annular frame, to avoid water-cooled plate to rise in the process of welding, to optimize the effect of welding.

[0003] Some positioning mechanisms are usually arranged on the base of friction stir welding, to horizontally position the bottom of annular frame, to avoid horizontal deviation in the process of welding.And in the process of friction stir welding by high-speed rotation friction to weld water-cooled plate on the top of annular frame, it is inevitable to transmit stirring force to annular frame, to make the top of annular frame shake accordingly, to increase the fit clearance between water-cooled plate and annular frame, and excessive fit clearance can lead to water-cooled plate and annular frame cannot be welded together, leading to welding failure.So, to avoid this problem, the common way is to set several groups of lower pressure pieces on the top of annular frame, to improve the pressure, to avoid the top of annular frame to shake in the process of welding.

[0004] Although the above-mentioned way of increasing pressure can complete welding, but this way of multi-point pressing also has some shortcomings.When annular frame is short, the distance between its top and bottom positioning point is short, so the moment generated by stirring force is also small, and the pressing effect of multiple lower pressure pieces can effectively reduce the shaking of the top of annular frame to complete welding.But when annular frame is high, the distance between its top and bottom positioning point is long, so the moment generated by stirring force is also large, to make annular frame shake greatly on the outside;And at this time, the lower pressure piece that seems to press down, instead, will exert a larger eccentric force on the top of annular frame when annular frame swings, further increase the swing amplitude of annular frame, lead to deformation of annular frame, cause unable to complete welding work.

[0005] Therefore, the positioning clamp in the process of welding annular frame and water-cooled plate still needs to be further improved. INVENTION CONTENTS

[0006] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a kind of clamp tool for battery tray, material taking mechanical arm and welding workstation.The utility model can effectively reduce the lateral deformation of annular frame in the process of welding, to improve the stability of welding, enhance welding effect.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of clamp tool for battery tray, including base, multiple positioning blocks and multiple groups of side pushing mechanisms are fixedly installed on base;Each positioning block is sequentially arranged along annular frame ring, to cooperate to form the positioning protrusion that is sleeved in the inside of annular frame;Side pushing mechanism includes only abutting the single side surface side pushing piece of one outside surface of annular frame and the double side surface side pushing piece that can be simultaneously abutted to two outside surfaces at the bending place of annular frame, each single side surface side pushing piece and each double side surface side pushing piece are sequentially staggered along annular frame ring, and multiple abutted surfaces of each group of side pushing mechanisms and annular frame cooperate to form outside positioning surface;The inside positioning surface formed by positioning protrusion and the outside positioning surface cooperate to form the clamping groove that clamps annular frame from both sides.

[0009] As a further scheme of the utility model: single side surface side pushing piece includes side pushing telescopic part fixedly installed on base and the telescopic direction points to annular frame, and side pushing head for abutting on the outside surface of annular frame is fixedly installed on the telescopic end of side pushing telescopic part.

[0010] As a further scheme of the utility model: double side surface side pushing piece includes two groups of single side surface side pushing pieces, and the fixed end of side pushing telescopic part in the second group of single side surface side pushing pieces is installed between the telescopic end of side pushing telescopic part in the first group of single side surface side pushing pieces and side pushing head, so that the second group of single side surface side pushing pieces moves synchronously with the side pushing head in the first group of single side surface side pushing pieces;The telescopic direction of side pushing telescopic part in two groups of single side surface side pushing pieces respectively points to the outside surface of annular frame at its position.

[0011] As a further scheme of the utility model: base is further provided with pressing mechanism for pressing the joint between annular frame and water-cooled plate, and the pressing mechanism includes rotary pressing piece and turnover pressing piece;Rotary pressing piece includes rotary telescopic rod, and first pressing head is fixedly installed on the rotary telescopic end of rotary telescopic rod, and rotary telescopic rod can make rotary down-pressing action of first pressing head, so that first pressing head rotates to the upper side of joint and presses down the joint;Turnover pressing piece includes pivot, and second pressing head is fixedly installed on pivot, and pivot can make turnover down-pressing action of second pressing head, so that second pressing head turns to the upper side of joint of water-cooled plate and presses down the joint.

[0012] As a further scheme of the utility model: base is further provided with positioning mechanism, and the positioning mechanism includes positioning telescopic rod, and positioning pin that can be inserted into positioning hole on water-cooled plate from bottom to top is fixedly installed on the telescopic end of positioning telescopic rod;And positioning telescopic rod can make positioning action of positioning pin, so that positioning pin is inserted into positioning hole.

[0013] As a further scheme of the utility model: the base is further provided with a jacking mechanism, the jacking mechanism comprises a jacking telescopic rod, a jacking block is fixedly installed at the telescopic end of the jacking telescopic rod, and the jacking telescopic rod can make the jacking block upwardly abut against the water-cooled plate to make the jacking action of the jacking block.

[0014] A kind of material taking mechanical arm, the material taking mechanical arm application above-mentioned one kind of battery tray clamp tool, including power arm and installation in power arm execution end for grabbing water-cooled plate material taking gripper;Power arm includes fixedly installed support seat on ground, support seat is horizontally rotatably installed with rotary platform, a set of parallel hinge four-bar linkage structure is installed on rotary platform;Parallel hinge four-bar linkage mechanism includes vertical installation on the rack of rotary platform, two connecting rods are hinged with the rack, and connecting rod is hinged with two connecting rods;Parallel hinge four-bar linkage structure is located in the connecting rod of upper side and the end of the rack extending out of machine frame is fixedly connected with connecting plate, and damping telescopic rod is hinged between connecting plate and rotary platform;The top end of connecting rod is rotatably installed with swing rod, swing rod is horizontally arranged, and swing rod swing end is rotatably installed with rotating rod, and the rotary axis of rotating rod is vertically arranged, and the material taking gripper is installed at the bottom of rotating rod.

[0015] As a further scheme of the utility model: the material taking gripper includes a hanger frame installed at the bottom of the rotating rod, a plurality of downwardly tiltable clamping arms are hinged to the hanger frame, the clamping arms are sequentially distributed along the hanger frame, and the clamping arms cooperate with each other to form a jaw for clamping the water-cooled plate.

[0016] As a further scheme of the utility model: the hanger frame is provided with a first positioning piece and a second positioning piece which are spaced apart from each other, and the vertical plane of the first positioning piece and the vertical plane of the second positioning piece are perpendicular to each other.

[0017] The base is provided with a first positioning protrusion and a second positioning protrusion which are spaced apart from each other, a first positioning groove is formed in the first positioning protrusion for downward insertion of the first positioning piece, and a second positioning groove is formed in the second positioning protrusion for downward insertion of the second positioning piece.

[0018] As a further scheme of the utility model: the utility model includes a friction stir welding robot system, two sets of clamp tools are arranged on both sides of the friction stir welding robot system, and a material taking mechanical arm is installed at each set of clamp tool.

[0019] A welding workstation, the welding workstation application above-mentioned one kind of material taking mechanical arm, including friction stir welding robot system, two sets of clamp tools are arranged on both sides of the friction stir welding robot system, and a material taking mechanical arm is installed at each set of clamp tool.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1. The clamp tool in the utility model realizes the two-side clamping and positioning of the annular frame in the welding process through the integrated side pushing mechanism and positioning block, effectively avoids the lateral shaking of the annular frame in the welding process, thereby improving the precision and reliability of welding, and improving the yield of welding.

[0022] 2. The design of the side pushing mechanism fully considers the structural characteristics of the annular frame, realizes the overall abutment of each outer side of the annular frame through the cooperation of the single-side surface side pushing piece and the double-side surface side pushing piece, not only enhances the fixing effect of the clamp, but also improves the adaptability to annular frames of different shapes and sizes.

[0023] 3. The combination of the rotary pressing piece and the turnover pressing piece realizes reliable pressing of the water-cooled plate, not only improves the stability in the welding process, but also ensures the close contact between the water-cooled plate and the annular frame, thereby improving the welding quality.

[0024] 4. The design of the jacking mechanism makes the battery tray after welding can be easily jacked up, which is convenient for subsequent taking and carrying, not only improves the production efficiency, but also reduces the difficulty and labor intensity of manual operation.

[0025] 5. The ingenious cooperation of the parallel hinge four-bar linkage structure in the power arm and the damping telescopic rod gives the mechanical arm high flexibility and stability. The four-bar linkage structure ensures that the mechanical arm can accurately position and grasp the water-cooled plate, and the damping telescopic rod effectively controls the movement speed and force of the mechanical arm through its damping effect, making the grasping process more stable and reliable, not only improving the material taking efficiency, but also greatly enhancing the adaptability and durability of the mechanical arm in different working environments.

[0026] 6. The design of the material taking clamping jaw fully considers the shape characteristics of the water-cooled plate, realizes reliable clamping of the water-cooled plate through the cooperation of multiple downwardly overturnable clamping arms, not only improves the adaptability of the clamping jaw, but also ensures the stability and safety during clamping.

[0027] 7. The setting of the guide column makes the clamping jaw easier to find the correct position when clamping the water-cooled plate. Through the guidance of the guide column, it ensures that the clamping jaw can accurately align and clamp the water-cooled plate, further improving the accuracy and efficiency of clamping.

[0028] 8. The setting of the first positioning sheet and the second positioning sheet and the cooperation of the first positioning protrusion and the second positioning protrusion realize the accurate positioning of the material taking mechanical arm during clamping and placing, not only improve the accuracy of operation, but also ensure the stability and consistency of each component of the battery tray during welding.

[0029] 9. The welding station realizes semi-automatic welding and carrying of the battery tray by integrating the friction stir welding robot system, the fixture tool and the material taking mechanical arm. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic view of the fixture tool in the utility model.

[0031] Figure 2 It is a structure schematic view of the single side surface side pushing piece in the utility model.

[0032] Figure 3 It is a sectional structure schematic view of the single side surface side pushing piece in the utility model.

[0033] Figure 4 It is a structure schematic view of the double side surface side pushing piece in the utility model.

[0034] Figure 5 It is a structure schematic view of the rotary pressing piece in the utility model.

[0035] Figure 6 It is a structure schematic view of the turnover pressing piece in the utility model.

[0036] Figure 7 It is a structure schematic view of the jacking mechanism in the utility model.

[0037] Figure 8 It is a structure schematic view of the positioning mechanism in the utility model.

[0038] Figure 9 It is a structure schematic view of the die repairing mechanism in the utility model.

[0039] Figure 10 It is a structure schematic view of the material taking mechanical arm in the utility model.

[0040] Figure 11 It is a structure schematic view of the welding station in the utility model.

[0041] In the figure: 1, base; 11, positioning block; 12, supporting block; 13, detection sensor; 14, side pushing mechanism; 141, single-sided side pushing piece; 1411, side pushing base; 14111, guide groove; 1412, guide rod; 1413, reset spring; 1414, side pushing telescopic rod; 14141, driving wedge-shaped block; 1415, driven wedge-shaped block; 1416, side pushing head; 142, double-sided side pushing piece; 15, pressing mechanism; 151, rotating pressing piece; 1511, rotating telescopic rod; 1512, first pressing head; 152, overturning pressing piece; 1521, rotating shaft; 1522, second pressing head; 1523, overturning base; 1524, overturning telescopic rod; 16, positioning mechanism; 161, positioning telescopic rod; 162, positioning pin; 17, jacking mechanism; 171, jacking telescopic rod; 172, jacking block; 18, first positioning protrusion; 181, first positioning groove; 19, second positioning protrusion; 191, second positioning groove. 2, material taking mechanical arm; 21, power assisting arm; 211, supporting seat; 212, rotating platform; 213, parallel hinge four-bar linkage structure; 2131, rack; 2132, connecting rod; 2133, connecting rod; 2134, connecting plate; 2135, damping telescopic rod; 2136, swing rod; 2137, rotating rod; 22, material taking clamping jaw; 221, hanging frame; 222, clamping arm; 223, guide column; 224, first positioning sheet; 225, second positioning sheet; 226, limiting column; 227, pulling handrail; 3, friction stir welding robot system; 4, safety fence; 5, mold repairing mechanism; 51, punching mounting plate; 52, punching sleeve; 53, coaming; 54, air nozzle; 55, collection box. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] Please refer to Figures 1-11 The welding workstation integrates the friction stir welding robot system 3, the clamp tooling and the material taking mechanical arm 2, and realizes semi-automatic welding and carrying of the battery tray.

[0044] The friction stir welding robot system 3 adopts an iFSW welding station based on a heavy-load six-axis robot, carries a high-speed FSW welding spindle, and is equipped with constant pressure and stationary shoulder friction stir welding technology. This technology enables the iFSW welding station to realize high-speed two-dimensional / three-dimensional welding, better meeting the high-quality stable welding needs of all series of aluminum alloys, magnesium alloys and other non-ferrous metals. The safety fence 4 is used to warn and remind workshop personnel to maintain a certain safety distance from the current work area, reduce the risk of workshop personnel entering the work area, and improve the safety of production.

[0045] The clamp tool includes a base 1, a side pushing mechanism 14 for abutting on the outer side of the ring frame, a pressing mechanism 15 for pressing the water-cooled plate against the ring frame, and a positioning mechanism 16 for locking the relative position between the ring frame and the water-cooled plate are arranged in sequence on the base 1 along the annular frame. The side pushing mechanism 14 and the pressing mechanism 15 are arranged alternately.

[0046] A plurality of positioning blocks 11 are installed at the position of the base 1 for fixedly mounting the ring frame, each positioning block 11 is uniformly arranged along the annular direction of the ring frame to form a positioning protrusion nested in the ring frame, and the ring frame is sleeved on the positioning protrusion to avoid horizontal movement of the ring frame on the end surface of the base 1. The side pushing mechanism 14 installed on the outer side of the ring frame cooperates with the positioning protrusion to form a clamping groove extending along the ring frame, and the ring frame is inserted into the clamping groove, so that the two groove walls of the clamping groove and the two side surfaces of the ring frame abut each other to avoid horizontal displacement of the ring frame during welding, thereby avoiding increasing the fitting gap between the ring frame and the water-cooled plate, improving the welding precision, and ensuring smooth completion of the welding work.

[0047] A plurality of supporting blocks 12 are arranged on the base 1, each supporting block 12 is distributed on the base 1 according to a predetermined arrangement, and supports the bottom of the water-cooled plate to provide uniform vertical support force for the water-cooled plate, thereby pressing the water-cooled plate from bottom to top during welding to maintain the horizontal state of the water-cooled plate and avoid the middle part of the water-cooled plate from collapsing downward due to the extrusion of the pressing mechanism 15.

[0048] The side pushing mechanism 14 includes a single-side side pushing piece 141 abutting on one side surface of the ring frame and a double-side side pushing piece 142 abutting on two side surfaces at the inward bending position of the ring frame.

[0049] The unilateral face side pushing piece 141 comprises a side pushing telescopic part fixedly installed on the base 1, and the side pushing telescopic part comprises a side pushing base 1411, an end-sealed guide groove 14111 is formed on the upper end face of the side pushing base 1411, the groove length direction of the guide groove 14111 is perpendicular to the side face of the annular frame at the position where the side pushing base 1411 is located, and the groove end of the guide groove 14111 close to the annular frame is an open end. A guide hole is formed on the sealed end of the guide groove 14111, a T-shaped guide rod 1412 is coaxially inserted into the guide hole, a driven wedge-shaped block 1415 is fixedly connected to the front end of the guide rod 1412, and the driven wedge-shaped block 1415 can slide in the guide groove 14111. A side pushing telescopic rod 1414 is fixed at the groove bottom of the guide groove 14111, and the telescopic direction of the side pushing telescopic rod 1414 is vertically arranged. A driving wedge-shaped block 14141 is fixedly installed at the telescopic end of the side pushing telescopic rod 1414, a waist-shaped hole is formed in the driving wedge-shaped block 14141 for the guide rod 1412 to pass through, and the hole type length direction of the waist-shaped hole is vertically arranged. The inclined surface of the driving wedge-shaped block 14141 and the inclined surface of the driven wedge-shaped block 1415 slide with each other; at the same time, a return spring 1413 is compressed between the tail end of the guide rod 1412 and the sealed end of the guide groove 14111, in the telescopic process of the side pushing telescopic rod 1414, the two wedge-shaped surfaces slide with each other, and the driven wedge-shaped block 1415 can slide in the guide groove 14111 under the action of the return spring 1413. The side pushing head 1416 is fixedly connected to the end of the guide groove 14111 extending out of the driven wedge-shaped block 1415. The side pushing head 1416 can abut against the outer side face of the annular frame after sliding a predetermined distance from the driven wedge-shaped block 1415, so as to provide an outer side positioning for the annular frame. The outer side positioning and the inner side positioning formed by the positioning protrusion cooperate with each other to form the clamping groove. In the telescopic process of the side pushing telescopic rod 1414, the guide rod 1412 slides in the waist-shaped hole and does not interfere with the waist-shaped hole, thereby smoothly completing the unilateral face abutting action of the side pushing head 1416.

[0050] The double-side side pushers 142 are used at the 90-degree inner bending corners formed by inwardly bending the annular frame. The double-side side pushers 142 use two groups of single-side side pushers 141 and are improved. The first group of single-side side pushers 141 is installed in the above-mentioned manner, but the side push head 1416 is not directly installed on the driven wedge block 1415, but is installed on the side of the side push base 1411 in the second group of single-side side pushers 141. That is, the side push base 1411 of the second group is installed between the driven wedge block 1415 and the side push head 1416 in the first group, and the moving directions of the driven wedge blocks 1415 in the two groups of single-side side pushers 141 are perpendicular to each other. In use, first, the driven wedge block 1415 in the first group of single-side side pushers 141 is moved to push the side push base 1411 in the second group to move, so that the side push head 1416 in the first group abuts against one side of the inner bending corner, and then the driven wedge block 1415 in the second group is moved to make the side push head 1416 in the group abut against the other side of the inner bending corner, so as to complete the bidirectional positioning, and finally form the corresponding outer positioning.

[0051] The pressing mechanism 15 includes a rotating pressing member 151 and a flipping pressing member 152. The rotating pressing member 151 is usually arranged at the corner of the annular frame to improve the precision of the welding of the annular frame and the water-cooling plate at the corner. The flipping pressing member 152 is usually arranged at the side of the annular frame to improve the precision of the welding of the annular frame and the water-cooling plate at the side. The rotating pressing member 151 includes a rotating telescopic rod 1511, and the telescopic direction of the rotating telescopic rod 1511 is vertically arranged. An L-shaped first pressing head 1512 is fixedly installed on the rotating telescopic end of the rotating telescopic rod 1511. The rotating telescopic rod 1511 rotates the first pressing head 1512 to the upper side of the joint of the water-cooling plate and the annular frame and shortens downward to press the water-cooling plate and the annular frame at the same time, so that the welding surface of the water-cooling plate and the welding surface of the annular frame at the joint are located in the same horizontal plane, and the welding defect of uneven welding caused by the height difference of welding is eliminated.

[0052] The flipping pressing member 152 includes a flipping base 1523 fixedly installed on the base 1, a rotating shaft 1521 hinged to the flipping base 1523, an L-shaped second pressing head 1522 fixedly connected to the rotating shaft 1521, and a driven gear coaxially fixed to the rotating shaft 1521. A driving rack is fixedly connected to the telescopic end of a flipping telescopic rod 1524 arranged in the telescopic direction vertically. The driving rack and the driven gear are meshed with each other to control the angle of downward flipping of the second pressing head 1522 under the driving of the flipping telescopic rod 1524, so as to press the second pressing head 1522 at the corresponding joint to realize the same flattening function as the first pressing head 1512.

[0053] The positioning mechanism 16 arranged inside the annular frame includes a vertically extending telescopic positioning telescopic rod 161, and a positioning pin 162 is fixedly installed on the telescopic end of the telescopic positioning telescopic rod 161 and can be inserted into a positioning hole on the water-cooled plate from bottom to top. The telescopic positioning telescopic rod 161 can push the positioning pin 162 upwards to insert it into the positioning hole, so as to realize the horizontal positioning of the water-cooled plate, avoid horizontal movement of the water-cooled plate, and ensure the precision of welding. As shown in Figure 8 The positioning pin 162 is in a shape matched with that of the positioning hole, and the positioning hole can be circular or square, and the positioning pin 162 can be cylindrical or cuboid. The cylindrical positioning pin 162 and the cuboid positioning pin 162 are used simultaneously, so that the positioning precision and accuracy can be effectively improved. The positioning mechanisms 16 are distributed below the water-cooled plate to provide multi-point positioning for the water-cooled plate.

[0054] The jacking mechanism 17 arranged at four corners inside the annular frame includes a telescopic jacking telescopic rod 171, and a jacking block 172 is fixedly installed on the telescopic end of the telescopic jacking telescopic rod 171. The telescopic jacking telescopic rod 171 can perform a jacking action of jacking the jacking block 172 upwards against the water-cooled plate to jack up the battery tray after welding.

[0055] A die repairing mechanism 5 is further arranged at one corner of the base 1. The die repairing mechanism 5 mainly includes a punching mounting plate 51 fixed on the base 1, a punching sleeve 52 mounted on the punching mounting plate 51, and a surrounding plate 53 surrounding the outside of the punching sleeve 52. The surrounding plate 53 located outside the punching mounting plate 51 forms a blanking opening at the bottom, and a collection box 55 for sticking aluminum chips is mounted below the blanking opening. During the process of spindle welding, aluminum chips will continuously accumulate on the spindle, affecting the subsequent welding. Therefore, after a period of welding, the spindle is moved to the die repairing mechanism 5 under the driving of the six-degree-of-freedom robot to remove the aluminum chips. First, the spindle is coaxially inserted into the sleeve cavity of the punching sleeve 52 and moves up and down in the sleeve cavity, so that the sleeve opening with a diameter slightly larger than the diameter of the spindle can scrape the aluminum chips from the spindle. In the process of scraping, the air nozzle 54 connected to the air pump blows out cooling gas to cool the spindle, and at the same time, the aluminum chips scraped off are blown to the blanking opening and fall into the collection box 55 for collection. After the surface aluminum chips are scraped clean, the spindle returns to continue the subsequent welding work.

[0056] The telescopic rod preferably adopted in the utility model is a telescopic motor, and a telescopic air cylinder or a telescopic oil cylinder can also be adopted.

[0057] The material taking mechanical arm 2 includes a power assisting arm 21 and a material taking gripper 22 mounted on the execution end of the power assisting arm 21.

[0058] The assisting arm 21 comprises a support base 211 fixedly installed on the ground, and a rotating platform 212 rotatably installed on the support base 211. A set of parallel hinge four-bar linkage structures 213 are installed on the rotating platform 212 and are deformed in the vertical plane. The parallel hinge four-bar linkage structure 213 comprises a rack 2131 vertically installed on the rotating platform 212, two connecting rods 2132 directly hinged to the rack 2131, and a connecting rod 2133 directly hinged to the two connecting rods 2132, and the connecting rod 2133 is parallel to the rack 2131 and is vertically arranged. The end of the upper connecting rod 2132 extending out of the rack 2131 is fixedly connected with a connecting plate 2134, and a damping telescopic rod 2135 is hinged between the connecting plate 2134 and the rotating platform 212. Through the self-adjusting function of the damping telescopic rod 2135, the controllable deformation of the parallel hinge four-bar linkage structure 213 is realized. A swing rod 2136 is rotatably installed at the top end of the connecting rod 2133, the swing rod 2136 is horizontally arranged, and a rotating rod 2137 is rotatably installed at the swinging end of the swing rod 2136, and the rotating axis of the rotating rod 2137 is vertically arranged. The material taking gripper 22 is installed at the bottom of the rotating rod 2137, so that the material taking gripper 22 is used to take materials under the action of the assisting arm 21.

[0059] The material taking gripper 22 comprises a hanging frame 221, the shape of the hanging frame 221 is matched with the shape of the water-cooled plate, so that the water-cooled plate is clamped from the circumferential side of the water-cooled plate by using the clamping arm 222.

[0060] A plurality of clamping motors are fixedly installed on the hanging frame 221, the axes of the clamping motors are horizontally arranged, and an L-shaped clamping arm 222 that can be downwardly flipped is fixedly connected to the motor shaft of each clamping motor. Each clamping arm 222 is sequentially distributed along the circumferential direction of the water-cooled plate hanging frame 221, and each clamping arm 222 after being tightened cooperates with each other to form a jaw for clamping the water-cooled plate. A plurality of guide columns 223 are sequentially arranged on the hanging frame 221 along the circumferential direction thereof, and the guide columns 223 cooperatively form a positioning frame that can be wrapped downward on the outer side of the water-cooled plate.

[0061] The first positioning piece 224 and the second positioning piece 225 are installed on the hanging frame 221 and are separated from each other, and the vertical plane where the first positioning piece 224 is located and the vertical plane where the second positioning piece 225 is located are perpendicular to each other. The first positioning protrusion 18 and the second positioning protrusion 19 are installed on the base 1 and are separated from each other, and the first positioning groove 181 is formed in the first positioning protrusion 18 for downward insertion of the first positioning piece 224, and the second positioning groove 191 is formed in the second positioning protrusion 19 for downward insertion of the second positioning piece 225.

[0062] The utility model discloses a water -cooling plate and ring frame are positioned and assembled before welding through the taking -out mechanical arm of the utility model, and the taking -out mechanical arm is used for the taking -out of water -cooling plate and ring frame, and the taking -out mechanical arm comprises the base 1, the two taking -out mechanical arms 2 and the water -cooling plate, and the taking -out mechanical arm 2 is arranged on the base 1.

[0063] When the taking -out mechanical arm 2 is used for taking -out, another worker will take a ring frame from the taking -out place and place the ring frame on the base, and the ring frame and the positioning convex on the base are clamped with each other. The side pushing head 1416 in each single side face side pushing piece 141 and the side pushing head 1416 in double side face side pushing piece 142 arranged along the ring frame are all abutted on the outer side of the ring frame to clamp the ring frame in the formed clamping groove.

[0064] Then the operator moves the taking -out clamp jaw 22 carrying the water -cooling plate to the upper side of the ring frame on the base 1 through the pulling handrail 227, and then presses the pulling handrail 227 under the assistance of the power -assisted arm 21, so that the water -cooling plate moves downward, and the first positioning sheet 224 is inserted in the first positioning groove 181 along the vertical direction, and the second positioning sheet 225 is inserted in the second positioning groove 191 along the vertical direction. After the positioning sheet and the positioning groove are aligned and inserted, the plurality of positioning telescopic rods 161 on the base 1 begin to elongate, and the positioning pin 162 is inserted in the positioning hole on the water -cooling plate. Then the clamping motor drives the clamping arm 222 to turn upward, so that the taking -out clamp jaw 22 loses the clamping effect on the water -cooling plate, and the water -cooling plate falls on the ring frame. Then the operator reversely withdraws the taking -out clamp jaw 22 under the assistance of the power -assisted arm 21. After the water -cooling plate falls on the ring frame, the pressure head in the rotary pressure element 151 and the turnover pressure element 152 on the outer side of the ring frame begins to press downward and is pressed in the joint between the water -cooling plate and the ring frame. By then, the positioning and assembling work before welding of the water -cooling plate and the ring frame is completed.

[0065] The detection sensor 13 on the base 1 sends an optical signal to detect whether the water-cooled plate has been installed on the base 1, if not, the installation is continued, if the water-cooled plate has been installed, a signal is sent to the friction stir welding robot system 3, after receiving the information, the friction stir welding robot system 3 starts the spindle and moves the spindle to the corresponding starting welding position for welding. During the welding process, the turnover pressing piece 152 and the rotary pressing piece 151 are opened along with the movement of the spindle, that is, during the movement of the spindle for welding, the turnover pressing piece or the rotary pressing piece 151 at the next welding position is opened in advance along the joint, and avoids the movement path of the spindle. After the welding is completed here, the corresponding turnover pressing piece or rotary pressing piece 151 is reset to the original position to ensure the stability of the water-cooled plate and the annular frame during the welding process.

[0066] After the spindle welding is completed, the spindle enters the mold repairing mechanism 5 for again removing chips, and then moves to the clamp tool on the other side (the utility model proposes a double welding station) for welding task.

[0067] The turnover pressing piece 152, the rotary pressing piece 151, the single-sided side pushing piece 141 and the double-sided side pushing piece 142 in the clamp tool after welding are restored to the initial state, that is, the downward pressing and side pressing actions on the water-cooled plate and the annular frame are released. Then the jacking telescopic rod 171 at the four corners of the base 1 lifts the welded battery tray to a set height through the jacking block 172, and then takes it away, and then the jacking telescopic rod 171 is reset, so that the next round of welding work can be carried out.

[0068] One iFSW welding workstation is equipped with two sets of clamp tools and material taking mechanical arms 2, which can effectively improve the work efficiency.

[0069] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A jig tool for a battery tray, characterized by, The base (1) is provided with a plurality of positioning blocks (11) and a plurality of sets of side pushing mechanisms (14). The positioning blocks (11) are arranged in sequence along the annular frame to form positioning protrusions which are sleeved on the inner side of the annular frame. The side pushing mechanisms (14) include single-side surface side pushing pieces (141) which abut against one outer side surface of the annular frame and double-side surface side pushing pieces (142) which abut against two outer side surfaces at the bending part of the annular frame. The single-side surface side pushing pieces (141) and the double-side surface side pushing pieces (142) are arranged in sequence and staggered along the annular frame. The sets of side pushing mechanisms (14) abut against a plurality of abutting surfaces of the annular frame to form an outer positioning surface. The inner positioning surface formed by the positioning protrusions and the outer positioning surface form a clamping groove which clamps the annular frame from both sides.

2. The jig tool for a battery tray according to claim 1, wherein The single-side surface side pushing piece (141) includes a side pushing telescopic part which is fixedly installed on the base (1) and whose telescopic direction points to the annular frame. A side pushing head (1416) is fixedly installed on the telescopic end of the side pushing telescopic part.

3. The clamp tool for a battery tray according to claim 2, wherein The double-side surface side pushing piece (142) includes two sets of single-side surface side pushing pieces (141). The fixed end of the side pushing telescopic part of the second set of single-side surface side pushing pieces (141) is installed between the telescopic end of the side pushing telescopic part of the first set of single-side surface side pushing pieces (141) and the side pushing head (1416) so that the second set of single-side surface side pushing pieces (141) moves synchronously with the side pushing head (1416) of the first set of single-side surface side pushing pieces (141). The telescopic directions of the side pushing telescopic parts of the two sets of single-side surface side pushing pieces (141) respectively point to the outer side surfaces of the annular frame at their positions.

4. The clamp tool for a battery tray according to claim 1, wherein The base (1) is further provided with a pressing mechanism (15) for pressing the joint between the annular frame and the water-cooling plate. The pressing mechanism (15) includes a rotary pressing piece (151) and a turnover pressing piece (152). The rotary pressing piece (151) includes a rotary telescopic rod (1511). A first pressing head (1512) is fixedly installed on the telescopic end of the rotary telescopic rod (1511). The rotary telescopic rod (1511) can perform a rotary downward pressing action to rotate the first pressing head (1512) above the joint and press the joint downward. The turnover pressing piece (152) includes a rotating shaft (1521). A second pressing head (1522) is fixedly installed on the rotating shaft (1521). The rotating shaft (1521) can perform a turnover downward pressing action to rotate the second pressing head (1522) above the joint of the water-cooling plate and press the joint downward.

5. The clamp tool for a battery tray according to claim 1, wherein The base (1) is further provided with a positioning mechanism (16). The positioning mechanism (16) includes a positioning telescopic rod (161). A positioning pin (162) which can be inserted into a positioning hole on the water-cooling plate from bottom to top is fixedly installed on the telescopic end of the positioning telescopic rod (161). The positioning telescopic rod (161) can perform a positioning action to push the positioning pin (162) upward so that the positioning pin (162) is inserted into the positioning hole.

6. The clamp tool for a battery tray according to claim 1, wherein The base (1) is further provided with a jacking mechanism (17), which comprises a jacking telescopic rod (171), and a jacking block (172) is fixedly installed at the telescopic end of the jacking telescopic rod (171). The jacking telescopic rod (171) can perform a jacking action to make the jacking block (172) upwardly abut against the water-cooling plate to jacking up the welded battery tray.

7. A material taking arm which applies the clamp tooling for a battery tray as claimed in any one of claims 1 to 6, characterized by, The power-assisted arm (21) comprises a support seat (211) fixedly installed on the ground, a rotary platform (212) is horizontally and rotatably installed on the support seat (211), and a set of parallel hinge four-link structures (213) are installed on the rotary platform (212). The parallel hinge four-link structure (213) comprises a rack (2131) vertically installed on the rotary platform (212), two connecting rods (2132) hingedly connected with the rack (2131), and a connecting rod (2133) hingedly connected with the two connecting rods (2132). The end of the upper connecting rod (2132) of the parallel hinge four-link structure (213) extending out of the rack (2131) is fixedly connected with a connecting plate (2134), and a damping telescopic rod (2135) is hingedly connected between the connecting plate (2134) and the rotary platform (212). The top end of the connecting rod (2133) is rotatably installed with a swing rod (2136), the swing rod (2136) is horizontally arranged, and the swing end of the swing rod (2136) is rotatably installed with a rotating rod (2137), and the rotary axis of the rotating rod (2137) is vertically arranged. The material taking clamp (22) is installed at the bottom of the rotating rod (2137).

8. A material taking robot arm according to claim 7, characterized in that The material taking clamp (22) comprises a hanger frame (221) installed at the bottom of the rotating rod (2137), and a plurality of downwardly flipable clamping arms (222) are hingedly connected to the hanger frame (221). The clamping arms (222) are sequentially distributed along the hanger frame (221), and the clamping arms (222) cooperatively form a clamping jaw for clamping the water-cooling plate.

9. A material taking robot arm according to claim 8, characterized in that The first positioning piece (224) and the second positioning piece (225) are installed on the hanger frame (221) and are spaced apart from each other, and the vertical planes of the first positioning piece (224) and the second positioning piece (225) are perpendicular to each other. The first positioning protrusion (18) and the second positioning protrusion (19) are installed on the base (1) and are spaced apart from each other. The first positioning groove (181) is formed in the first positioning protrusion (18) and is used for downwardly inserting the first positioning piece (224). The second positioning groove (191) is formed in the second positioning protrusion (19) and is used for downwardly inserting the second positioning piece (225).

10. A welding station applying a material taking robot as claimed in claim 9, characterized in that The system comprises a friction stir welding robot system (3), and two sets of clamping tools are arranged on both sides of the friction stir welding robot system (3).

Images