Welding carrier

Abstract

The utility model discloses a welding carrier which is provided with a supporting platform, a first limiting structure, a second limiting structure, a first positioning piece, a second positioning piece and a positioning mechanism of a third positioning piece, the first positioning piece, the second positioning piece and the third positioning piece are movably arranged, and the third positioning piece is located above the second positioning piece. The first positioning piece, the second positioning piece and the third positioning piece are respectively provided with a locking position close to the supporting platform and an unlocking position far away from the supporting platform, the positioning mechanism has a first mode, a second mode and a third mode, and in the first mode, at least the first positioning piece and the second positioning piece are located at the locking positions; in the second mode, only the second positioning piece is maintained at the locking position; in the third mode, the first positioning piece, the second positioning piece and the third positioning piece are all located at the locking positions, the positioning mechanism forms a fixing space used for fixing the to-be-welded assembly, an opening allowing laser to enter the fixing space is formed in the circumferential direction of the fixing space, and the welding carrier is higher in positioning precision and stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of welding carriers. BACKGROUND

[0002] In the process of product production, some components need to be welded, such as Figure 1 As shown in the welding assembly to be shown, it includes a workpiece and a protective cover, the protective cover is arranged on one corner of the workpiece, and the protective cover is in abutment with the top and the two adjacent sides of the workpiece, respectively. The welding area is located at one bending part of the protective cover. Since the size of the workpiece and the protective cover is relatively small, and there is no mutual positioning and fixing structure between the workpiece and the protective cover, how to accurately position the two and how to stably fix them to accurately weld becomes a difficult problem. Some equipment sets a positioning mechanism on the carrier. After the workpiece is placed on the carrier, the positioning mechanism is used to position the workpiece. Before the protective cover is transferred to the workpiece, all the positioning needs to be released in order not to affect the installation of the protective cover, which is easy to cause errors in the assembly between the workpiece and the protective cover. After the protective cover is transferred to the workpiece, the positioning mechanism fixes the protective cover and the workpiece. However, when welding, the positioning on one side of the welding area needs to be released to avoid mutual interference, which also affects the welding precision and the final welding effect. SUMMARY

[0003] The utility model aims at providing a kind of welding carriers.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of: a welding carrier, the welding carrier has a positioning mechanism, the positioning mechanism includes a support platform, a first limiting structure and a first positioning piece arranged on different sides of the support platform along a first direction, a second limiting structure and a second positioning piece arranged on different sides of the support platform along a second direction, the first limiting structure and the second limiting structure are fixedly arranged, the first positioning piece is movably arranged along the first direction, the second positioning piece is movably arranged along the second direction, and the first direction intersects with the second direction.

[0005] The first positioning member, the second positioning member and the third positioning member each have a locking position close to the support platform and an unlocking position away from the support platform, and the positioning mechanism has a first mode, a second mode and a third mode. In the first mode, at least the first positioning member and the second positioning member are in the locking position. In the second mode, the second positioning member is maintained in the locking position, and the first positioning member and the third positioning member are in the unlocking position. In the third mode, the first positioning member, the second positioning member and the third positioning member are all in the locking position, and a fixing space for fixing the to-be-welded assembly is formed between the first positioning member, the second positioning member, the third positioning member, the first limiting structure, the second limiting structure and the support platform. An opening is formed between the first positioning member, the second positioning member and the third positioning member along the circumference of the fixing space and communicates with the fixing space, and the opening is configured to allow laser to enter the fixing space and perform welding on the to-be-welded assembly.

[0006] In some embodiments, the welding carrier has a through slot, when the positioning mechanism is in the third mode, one end of the through slot communicates with the outside of the welding carrier, and the other end of the through slot communicates with the opening, and the through slot and the opening together constitute a welding channel for laser to enter the fixing space.

[0007] In some embodiments, the width of the through slot gradually decreases in the direction close to the opening.

[0008] In some embodiments, the welding carrier includes a base provided with a first guide slot extending along the first direction and a second guide slot extending along the second direction. The first positioning member has a first guide portion which is slidingly fitted in the first guide slot, and the second positioning member has a second guide portion which is slidingly fitted in the second guide slot. The welding carrier further includes a top cover which covers the first guide slot and the second guide slot. The top cover is provided with a first through hole and a second through hole penetrating in the up-down direction. The first through hole extends along the first direction, and the second through hole extends along the second direction. The positioning mechanism includes a first driving member fixed on the upper part of the first guide portion and a second driving member fixed on the upper part of the second guide portion. The first driving member extends out of the first through hole to above the top cover, and the second driving member extends out of the second through hole to above the top cover.

[0009] In some embodiments, the top cover is provided with a third guide slot extending in the second direction, the third positioning member is provided with a third guide portion which is slidingly fitted in the third guide slot, and an upper portion of the third guide portion is fixedly provided with a third driving member which extends from the third guide slot to above the top cover.

[0010] In some embodiments, the welding carrier is provided with a support column which extends above the top cover.

[0011] In some embodiments, the first positioning member is provided with a first inclined surface which extends away from the support platform in the first direction and approaches the support platform in the second direction, the second positioning member is provided with a second inclined surface which extends in a direction parallel to the first inclined surface, the second inclined surface is located on a side of the first inclined surface which approaches the support platform in the second direction, and the second inclined surface abuts against the first inclined surface.

[0012] In some embodiments, the welding carrier comprises a base, the positioning assembly is arranged on the base, a first elastic member is arranged between the first positioning member and the base, and the first elastic member is used to provide a force required for driving the first positioning member to move in the first direction to the locking position.

[0013] In some embodiments, a second elastic member is arranged between the second positioning member and the base, and the second elastic member is used to provide a force required for driving the second positioning member to move in the second direction to the locking position.

[0014] In some embodiments, a third elastic member is arranged between the third positioning member and the base, and the third elastic member is used to provide a force required for driving the third positioning member to move in the second direction to the locking position.

[0015] In some embodiments, the positioning mechanism is provided with a plurality of groups in the first direction, the movement paths of the plurality of first positioning members are collinearly extended, and the plurality of first positioning members can be synchronously driven; the movement paths of the plurality of second positioning members are parallel to each other, and the plurality of second positioning members can be synchronously driven; and the movement paths of the plurality of third positioning members are parallel to each other, and the plurality of third positioning members can be synchronously driven.

[0016] In some embodiments, the first direction is perpendicular to the second direction.

[0017] In some embodiments, the assembly to be welded includes a workpiece and a protective cover, the protective cover has a first cover body, a second cover body and a third cover body fixedly connected, the first cover body, the second cover body and the third cover body are located in three planes intersecting with each other respectively, the first cover body abuts against the top of the workpiece, the second cover body and the third cover body abut against two adjacent sides of the workpiece respectively, the second cover body is provided with a welding area, the welding area is located at the intersection of the second cover body and the third cover body; the positioning mechanism is in the first mode and the second mode, the workpiece is located on the support platform; the positioning mechanism is in the third mode, the workpiece and the protective cover are located in the fixed space.

[0018] In some embodiments, the workpiece includes a workpiece body and a transmission piece extending above the workpiece body and in the second direction, the upper part of the second limiting structure is provided with two limiting protrusions at intervals.

[0019] In some embodiments, the upper part of the third positioning piece is provided with a avoiding slot.

[0020] Due to the use of the above technical solutions, the welding carrier of the utility model has the following advantages compared with the prior art: the welding carrier of the utility model is provided with three movable positioning pieces, the positioning mechanism has a first mode, a second mode and a third mode, after the workpiece is transferred to the support platform, the positioning mechanism is converted to the first mode, under the cooperation of the first positioning piece and the first limiting structure and the second positioning piece and the second limiting structure, the workpiece is clamped and positioned in the first direction and the second direction. When the protective cover is transferred to the workpiece, all the positions do not need to be released, the second positioning piece still maintains in the locked position and fixes the workpiece, so as to ensure the accuracy of the assembly of the protective cover and ensure the normal execution of the assembly link. After the protective cover is assembled to the workpiece, the positioning mechanism is converted to the third mode, the workpiece and the protective cover are fixed in the fixed space and are positioned, and the workpiece and the protective cover are tightly abutted in the first direction and the second direction, in this mode, the laser can directly weld the welding area on the protective cover from the opening, without releasing the positioning in any direction, while ensuring the welding precision, the welding quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] ATTACHMENT Figure 1 It is a schematic view of the assembly to be welded of a specific embodiment of the utility model;

[0022] ATTACHMENT Figure 2 It is a schematic view of the assembly to be welded of a specific embodiment of the utility model; Figure 1 It is a schematic view of the workpiece;

[0023] ATTACHMENT Figure 3 It is a schematic view of the assembly to be welded of a specific embodiment of the utility model; Figure 1 It is a schematic view of the protective cover;

[0024] ATTACHMENTFigure 4 is a schematic view of the welding carrier of the embodiment in the first mode;

[0025] attached Figure 5 is a schematic view of the welding carrier of the embodiment in the second mode; Figure 4 is a schematic view of the welding carrier of the embodiment in the third mode;

[0026] attached Figure 6 is a schematic view of the welding carrier of the embodiment in the third mode;

[0027] attached Figure 7 is a schematic view of the welding carrier of the embodiment in the third mode; Figure 4 is a schematic view of the welding carrier of the embodiment in the third mode;

[0028] attached Figure 8 is a schematic view of the welding carrier of the embodiment in the third mode;

[0029] attached Figure 9 is a schematic view of the welding carrier of the embodiment in the third mode; Figure 4 is a schematic view of the welding carrier of the embodiment in the third mode;

[0030] attached Figure 10 is a schematic view of the welding carrier of the embodiment in the third mode; Figure 8 is a schematic view of the welding carrier of the embodiment in the third mode;

[0031] attached Figure 11 is a schematic view of the welding carrier of the embodiment in the third mode; Figure 10 is a schematic view of the welding carrier of the embodiment in the third mode;

[0032] attached Figure 12 is a schematic view of the welding carrier of the embodiment in the third mode; Figure 11 is a schematic view of the welding carrier of the embodiment in the third mode;

[0033] attached Figure 13 is a schematic view of the welding carrier of the embodiment in the third mode; Figure 11 is a schematic view of the welding carrier of the embodiment in the third mode;

[0034] attached Figure 14 is a schematic view of the welding carrier of the embodiment in the third mode;

[0035] 1, positioning mechanism; 11, support platform; 12, first limiting structure; 13, first positioning piece; 131, first guide part; 132, first positioning part; 133, first driving piece; 134, first inclined surface; 14, second limiting structure; 141, limiting protrusion; 15, second positioning piece; 151, second guide part; 152, second positioning part; 153, second driving piece; 154, second inclined surface; 16, third positioning piece; 161, third guide part; 162, third positioning part; 163, third driving piece; 164, avoiding groove; 17, fixed space; 18, opening; 2, base; 21, first guide groove; 22, second guide groove; 3, top cover; 31, through groove; 32, first through hole; 33, second through hole; 34, third guide groove; 35, third through hole; 4, support column; 51, first elastic piece; 52, second elastic piece;

[0036] 100, workpiece; 110, workpiece body; 120, transmission piece; 200, protective cover; 210, first cover body; 220, second cover body; 230, third cover body; 201, welding area; 202, shielding portion. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described in detail below with reference to the drawings and specific embodiments, so that the advantages and features of the present application are easier for those skilled in the art to understand. Obviously, the embodiments described in the present application are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] Referring to Figure 1 A welding assembly shown in the figure includes a workpiece 100 and a protective cover 200, the protective cover 200 can shield part of the workpiece 100, and the two can be connected together by welding. Referring to Figure 3 As shown, the protective cover 200 has a first cover body 210, a second cover body 220 and a third cover body 230 fixedly connected, the first cover body 210, the second cover body 220 and the third cover body 230 are located in three planes intersecting with each other respectively, when the workpiece 100 and the protective cover 200 are welded and connected, the first cover body 210 abuts against the top of the workpiece 100, the second cover body 220 and the third cover body 230 abut against the adjacent two side portions of the workpiece 100 respectively, and the second cover body 220 is provided with a welding area 201. Specifically, referring to Figure 2 As shown, the workpiece 100 has a workpiece body 110 and a transmission piece 120 for signal transmission, part of the transmission piece 120 covers the top of the workpiece body 110, and the transmission piece 120 extends along the second direction. Referring to Figure 1 As shown, the first cover body 210 abuts against the top of the workpiece body 110 and part of the transmission piece 120, and the second cover body 220 and the third cover body 230 abut against the adjacent two side portions of the workpiece body 110 respectively.

[0039] Referring to Figure 3 As shown, in the present embodiment, the welding area 201 is located at the intersection of the second cover body 220 and the third cover body 230, the second cover body 220 is in the shape of L, the second cover body 220 is further provided with a shielding portion 202 connected with the first cover body 210, and the shielding portion 202 abuts against the upper portion of one of the side portions of the workpiece body 110.

[0040] Referring to Figure 1A welding carrier is shown for fixing a welding assembly to be welded for welding operation. The welding carrier has a positioning mechanism 1 comprising a support platform 11, a first limiting structure 12 and a first positioning member 13 arranged on different sides of the support platform 11 along a first direction, a second limiting structure 14 and a second positioning member 15 arranged on different sides of the support platform 11 along a second direction. The first limiting structure 12 and the second limiting structure 14 are fixedly arranged, the first positioning member 13 is movably arranged along the first direction, the second positioning member 15 is movably arranged along the second direction, and the first direction intersects the second direction. In this embodiment, the positioning mechanism 1 further comprises a third positioning member 16 arranged above the second positioning member 15 and movably arranged along the second direction.

[0041] In this embodiment, the first positioning member 13, the second positioning member 15 and the third positioning member 16 each have a locking position close to the support platform 11 and an unlocking position away from the support platform 11. The positioning mechanism 1 has a first mode and a second mode. When the workpiece 100 is placed on the support platform 11, the positioning mechanism 1 is switched to the first mode, as shown in Figure 4 、 Figure 5 In this mode, at least the first positioning member 13 and the second positioning member 15 are in the locking position. The positioning of the workpiece 100 in the first direction is achieved by the cooperation between the first positioning member 13 and the first limiting structure 12, and the positioning of the workpiece 100 in the second direction is achieved by the cooperation between the second positioning member 15 and the second limiting structure 14. In some embodiments, in the first mode, the third positioning member 16 is also in the locking position, which improves the positioning accuracy of the workpiece 100 in the second direction.

[0042] When the protective cover 200 is transferred to the workpiece 100, the positioning mechanism is switched from the first mode to the second mode, and in the process of switching to the second mode, the first positioning member 13 moves away from the support platform 11. In some embodiments, in the process of switching, the third positioning member 16 also moves away from the support platform 11. Thus, in the second mode, as shown in Figure 6 、 Figure 7As shown, the second positioning member 15 is maintained in the locking position, and the first positioning member 13 and the third positioning member 16 are in the unlocking position. In this mode, the second positioning member 15 and the second limiting structure 14 form a clamping of the workpiece 100 and maintain the stability of the workpiece 100, avoiding displacement of the workpiece 100, thereby avoiding errors in the process of installing the protective cover 200. Since the second cover body 220 is in an inverted L shape, a space is left below the shielding portion 202, so the second positioning member 15 will not affect the installation of the protective cover 200, and the first positioning member 13 and the third positioning member 16 will affect the installation of the protective cover 200, so they need to be switched to the unlocking position. After the protective cover 200 is transferred to the workpiece 100, the positioning mechanism 1 is switched to the third mode,

[0043] The positioning mechanism 1 has a third mode. When the workpiece 100 is welded, the positioning mechanism 1 is in the third mode. As shown in Figure 8 、 Figure 9 As shown, the first positioning member 13, the second positioning member 15, and the third positioning member 16 are all in the locking position, and the first positioning member 13, the second positioning member 15, the third positioning member 16, the first limiting structure 12, the second limiting structure 14, and the support platform 11 form a fixed space 17, and the workpiece 100 is located in the fixed space 17. Specifically, in this mode, the workpiece body 110 is located on the support platform 11, and the protective cover 200 is arranged at one corner of the workpiece 100, and the first cover body 210 and the upper part of the workpiece 100 are tightly abutted under the action of the gravity of the protective cover 200. Through the cooperation between the first positioning member 13 and the first limiting structure 12, the clamping and fixing of the workpiece 100 and the protective cover 200 in the first direction are realized, so that the third cover body 230 is tightly abutted with one side of the workpiece body 110. Through the cooperation between the second positioning member 15, the third positioning member 16, and the second limiting structure 14, the clamping and fixing of the workpiece 100 and the protective cover 200 in the second direction are realized, so that the second cover body 220 is tightly abutbed with the other side of the workpiece body 110, so that the workpiece 100 and the protective cover 200 are fixed firmly and accurately, and the welding area 201 can be welded.

[0044] In the third mode, along the circumference of the fixed space 17, the first positioning member 13, the second positioning member 15, and the third positioning member 16 form an opening 18 communicating with the fixed space 17, and the opening 18 is configured to allow laser to enter the fixed space 17 and perform welding processing. As shown in Figure 9 As shown, the workpiece 100 and the protective cover 200 are fixed to each other, and the welding area 201 is located at the opening 18, so that the laser can enter the welding area 201 through the opening 18, thereby welding the workpiece 100 and the protective cover 200 together.

[0045] In this embodiment, as shown in Figure 12 ,Figure 13 As shown in the figure, the welding carrier comprises a base 2, the base 2 is provided with a first guide groove 21 extending along a first direction, a second guide groove 22 extending along a second direction, and the support platform 11 is located at the intersection of the first guide groove 21 and the second guide groove 22. In this embodiment, the first positioning member 13 has a first guide part 131 which is slidingly fitted in the first guide groove 21, and the second positioning member 15 has a second guide part 151 which is slidingly fitted in the second guide groove 22. The cooperation between the first guide part 131 and the first guide groove 21 can guide the movement of the first positioning member 13, and the cooperation between the second guide part 151 and the second guide groove 22 can guide the movement of the second positioning member 15.

[0046] In this embodiment, the welding carrier also has a top cover 3, the top cover 3 covers the first guide groove 21 and the second guide groove 22 at the same time, and the top cover 3 can limit the displacement of the first positioning member 13 and the second positioning member 15 along the up-down direction, and protect the first guide part 131 and the second guide part 151.

[0047] In this embodiment, referring to Figure 12 As shown in the figure, the top cover 3 is provided with a third guide groove 34 extending along the second direction, and the third positioning member 16 has a third guide part 161 which is slidingly fitted in the third guide groove 34. The cooperation between the third guide part 161 and the third guide groove 34 can guide the movement of the third positioning member 16.

[0048] In this embodiment, referring to Figure 13 As shown in the figure, the first positioning member 13 further comprises a first positioning part 132, the first positioning part 132 is fixedly arranged on the side of the first guide part 131 close to the support platform 11 along the first direction, and the first positioning part 132 is used for abutting against the workpiece 100 or the protective cover 200, so as to fix the workpiece 100 or the protective cover 200. In this embodiment, referring to Figure 13 As shown in the figure, the second positioning member 15 further comprises a second positioning part 152, the second positioning part 152 is fixedly arranged on the side of the second guide part 151 close to the support platform 11 along the second direction, and the second positioning part 152 is used for abutting against the workpiece 100, so as to fix the workpiece 100.

[0049] In this embodiment, referring to Figure 12 As shown in the figure, the third positioning member 16 further comprises a third positioning part 162, the third positioning part 162 is fixedly arranged on the side of the third guide part 161 close to the support platform 11 along the second direction, and the third positioning part 162 is bent and extends from the third guide part 161 along the first direction, and the third positioning part 162 is used for abutting against the workpiece 100 or the protective cover 200, so as to fix the workpiece 100 or the protective cover 200.

[0050] In the embodiment, the top cover 3 is provided with a first through hole 32 and a second through hole 33 penetrating in the up-down direction, the first through hole 32 extends in the first direction, and the second through hole 33 extends in the second direction. The positioning mechanism 1 comprises a first driving member 133 fixed on the upper portion of the first guide portion 131 and a second driving member 153 fixed on the upper portion of the second guide portion 151, the first driving member 133 extends out of the first through hole 32 to above the top cover 3, and the second driving member 153 extends out of the second through hole 33 to above the top cover 3. The first positioning member 13 can be driven to move in the first direction by driving the first driving member 133 to move in the first direction, and the second positioning member 15 can be driven to move in the second direction by driving the second driving member 153 to move in the second direction.

[0051] In the embodiment, the upper portion of the third guide portion 161 is fixed with a third driving member 163, the third driving member 163 extends out of the third guide groove 34 and extends to above the top cover 3, and the third positioning member 16 can be driven to move in the second direction by driving the third driving member 163 to move in the second direction.

[0052] In the embodiment, the first positioning member 13 and the second positioning member 15 are provided with a linkage mechanism, so that when the first positioning member 13 is driven to move to the locking position, the second positioning member 15 can be driven to move to the locking position at the same time, and when the second positioning member 15 is driven to move to the unlocking position, the linkage mechanism can also drive the first positioning member 13 to move to the unlocking position at the same time. In the embodiment, the linkage mechanism comprises a first inclined surface 134 arranged on the first positioning member 13 and a second inclined surface 154 arranged on the second positioning member 15, the first inclined surface 134 extends away from the support platform 11 in the first direction and extends towards the support platform 11 in the second direction, the extending direction of the second inclined surface 154 is parallel to the extending direction of the first inclined surface 134, and the second inclined surface 154 abuts against the first inclined surface 134. As shown in Figure 12 、 Figure 13 When the first positioning member 13 moves towards the support platform 11 in the first direction, the first inclined surface 134 slides relative to the second inclined surface 154, thereby pushing the second positioning member 15 to move towards the support platform 11 in the second direction. When the second positioning member 15 moves away from the support platform 11 in the second direction, the second inclined surface 154 slides relative to the first inclined surface 134, thereby pushing the first positioning member 13 to move away from the support platform 11.

[0053] In the embodiment, the first inclined surface 134 is arranged on the first guide part 131, the second inclined surface 154 is arranged on the second guide part 151, and the first inclined surface 134 and the second inclined surface 154 are located at the intersection of the first guide groove 21 and the second guide groove 22. Under the protection of the top cover 3, impurities can be prevented from entering the first guide groove 21 and the second guide groove 22, thereby ensuring the normal operation of the guide function and the linkage mechanism.

[0054] In the embodiment, the first positioning member 13 and the base 2 are provided with a first elastic member 51, which is used to provide the force required to drive the first positioning member 13 to move to the locking position along the first direction. Specifically, the first elastic member 51 is a spring, as shown in Figure 13 The first elastic member 51 is arranged between the first guide part 131 and the side wall of the first guide groove 21. Under the action of the first elastic member 51, the first positioning member 13 can automatically switch to the locking position and can maintain the fixation of the workpiece 100.

[0055] In the embodiment, the second positioning member 15 and the base 2 are provided with a second elastic member 52, which is used to provide the force required to drive the second positioning member 15 to move to the locking position along the second direction. Specifically, the second elastic member 52 is a spring, as shown in Figure 13 The second elastic member 52 is arranged between the second guide part 151 and the side wall of the second guide groove 22. Under the action of the second elastic member 52, the second positioning member 15 can automatically switch to the locking position and can maintain the fixation of the workpiece 100.

[0056] In the embodiment, the third positioning member 16 and the top cover 3 are provided with a third elastic member (not shown in the figure), which is used to provide the force required to drive the third positioning member 16 to move to the locking position along the second direction. Specifically, the third elastic member is a spring, which is arranged between the third guide part 161 and the side wall of the third guide groove 34. Under the action of the third elastic member, the third positioning member 16 can automatically switch to the locking position and can maintain the fixation of the workpiece 100.

[0057] In the embodiment, as shown in Figure 10 The welding carrier has a through groove 31. When the positioning mechanism 1 is in the third mode, one end of the through groove 31 communicates with the outside of the welding carrier, and the other end of the through groove 31 communicates with the opening 18. The through groove 31 and the opening 18 jointly constitute a welding channel for laser transmission. Specifically, in the embodiment, the through groove 31 is arranged on the upper part of the top cover 3. As shown in Figure 14 When the positioning mechanism 1 is in the third mode, the laser performs welding processing on the workpiece to be welded along the direction of the arrow shown in the figure.

[0058] In the embodiment, the width of the through slot 31 gradually decreases along the direction close to the opening 18, and the welding channel gradually narrows along the laser transmission direction, which facilitates the welding operation.

[0059] In the embodiment, the welding carrier has a support column 4 extending above the top cover 3, as shown in Figure 10 、 Figure 11 In the embodiment, the support column 4 is located on the side of the second positioning part 152 away from the support platform 11 along the second direction. When the workpiece 100 is placed on the support platform 11, the transmission member 120 is lifted upward by the support column 4, which avoids affecting the movement of the second positioning member 15 and the third positioning member 16, and also avoids falling into the welding channel of the laser, thereby affecting the welding operation.

[0060] Specifically, as shown in Figure 12 In the embodiment, the top cover 3 is provided with a third through hole 35 penetrating upward and downward, and the support column 4 is inserted into the third through hole 35. The bottom of the support column 4 abuts against the upper part of the second guide part 151, and the lower part of the support column 4 is provided with an annular flange for preventing the upward movement of the support column 4.

[0061] In the embodiment, the upper part of the second limiting structure 14 is provided with two limiting protrusions 141 at intervals, which can be used for positioning one end of the transmission member 120.

[0062] In the embodiment, the upper part of the third positioning member 16 is provided with an avoiding slot 164. When the workpiece 100 is placed on the support platform 11, the transmission member 120 passes through the avoiding slot 164, thereby avoiding the mutual influence between the transmission member 120 and the third positioning member 16.

[0063] In the embodiment, the first direction and the second direction are perpendicular to each other, and the first cover body 210, the second cover body 220 and the third cover body 230 are respectively located in three planes perpendicular to each other.

[0064] In some embodiments, the positioning mechanism 1 is provided with multiple groups along the first direction. The movement paths of the multiple first positioning members 13 are collinearly extended, the multiple first driving members 133 are located in the same straight line extension direction, and the multiple first positioning members 13 can be synchronously driven. In the embodiment, the movement paths of the multiple second positioning members 15 are parallel to each other, and the multiple second positioning members 15 can be synchronously driven. In the embodiment, the movement paths of the multiple third positioning members 16 are parallel to each other, and the multiple third positioning members 16 can be synchronously driven. In this way, multiple to-be-welded assemblies can be conveniently and quickly positioned and fixed synchronously. Specifically, as shown in Figure 14 In the embodiment, the welding carrier is provided with four groups of positioning mechanisms 1 along the first direction, and the welding carrier can synchronously position and fix four to-be-welded assemblies.

[0065] To sum up, the welding carrier of the embodiment is provided with three movable positioning members, the positioning mechanism 1 has a first mode, a second mode and a third mode, after the workpiece 100 is transferred to the support platform 11, the positioning mechanism 1 is switched to the first mode, the workpiece 100 is clamped and positioned in the first direction and the second direction under the cooperation between the first positioning member 13 and the first limiting structure 12 and the second positioning member 15 and the second limiting structure 14. When the protective cover 200 is transferred to the workpiece 100, all the positions do not need to be released, the second positioning member 15 is still maintained in the locked position and fixes the workpiece 100, so as to ensure the accuracy of the assembly of the protective cover 200 and ensure the normal execution of the link. After the protective cover 200 is assembled to the workpiece 100, the positioning mechanism 1 is switched to the third mode, the workpiece 100 and the protective cover 200 are positioned and fixed in the fixed space 17, and the workpiece 100 and the protective cover 200 are tightly pressed in the first direction and the second direction. In this mode, the laser can directly weld the to-be-welded area 201 on the protective cover 200 from the opening 18, without releasing the position in any direction, so as to ensure the welding precision and improve the welding quality.

[0066] The above embodiment is only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A welding carriage, characterized by: The welding carrier has a positioning mechanism, which comprises a support platform, first limiting structures and first positioning members arranged on different sides of the support platform along a first direction, second limiting structures and second positioning members arranged on different sides of the support platform along a second direction, the first limiting structures and the second limiting structures are fixedly arranged, the first positioning members are movably arranged along the first direction, the second positioning members are movably arranged along the second direction, and the first direction intersects the second direction; the positioning mechanism further comprises third positioning members arranged above the second positioning members and movably arranged along the second direction, The first positioning members, the second positioning members and the third positioning members each have a locking position close to the support platform and an unlocking position away from the support platform, and the positioning mechanism has a first mode, a second mode and a third mode, in the first mode, at least the first positioning members and the second positioning members are in the locking position; in the second mode, the second positioning members are maintained in the locking position, and the first positioning members and the third positioning members are in the unlocking position; in the third mode, the first positioning members, the second positioning members and the third positioning members are in the locking position, and a fixing space for fixing a component to be welded is formed between the first positioning members, the second positioning members, the third positioning members, the first limiting structures, the second limiting structures and the support platform, and an opening is formed between the first positioning members, the second positioning members and the third positioning members along the circumference of the fixing space, the opening is configured to allow laser to enter the fixing space and perform welding on the component to be welded.

2. The welding carriage of claim 1, wherein: The welding carrier has a through slot, when the positioning mechanism is in the third mode, one end of the through slot communicates with the outside of the welding carrier, and the other end of the through slot communicates with the opening, and the through slot and the opening together constitute a welding channel for laser to enter the fixing space.

3. The welding carriage of claim 2, wherein: The width of the through slot gradually decreases in the direction close to the opening.

4. The welding carriage of claim 1, wherein: The welding carrier comprises a base, the base is provided with a first guide groove extending along the first direction and a second guide groove extending along the second direction; the first positioning members have first guide portions which are slidingly arranged in the first guide groove, and the second positioning members have second guide portions which are slidingly arranged in the second guide groove, The welding carrier further comprises a top cover, the top cover covers the first guide groove and the second guide groove, and the top cover is provided with a first through hole and a second through hole penetrating in the up-down direction, the first through hole extends along the first direction, and the second through hole extends along the second direction; The positioning mechanism comprises first driving members fixed on the upper portions of the first guide portions and second driving members fixed on the upper portions of the second guide portions, the first driving members extend out of the first through hole to above the top cover, and the second driving members extend out of the second through hole to above the top cover.

5. The welding carriage of claim 4, wherein: The top cover is provided with a third guide slot extending in the second direction, the third positioning member is provided with a third guide portion which is slidingly arranged in the third guide slot, and an upper portion of the third guide portion is fixedly provided with a third driving member which extends from the third guide slot to above the top cover. And / or, the welding carrier is provided with a support column which extends to above the top cover.

6. The welding carriage of claim 1, wherein: The first positioning member is provided with a first inclined surface which extends away from the support platform in the first direction and approaches the support platform in the second direction, the second positioning member is provided with a second inclined surface which extends in a direction parallel to the first inclined surface, the second inclined surface is located on a side of the first inclined surface which approaches the support platform in the second direction, and the second inclined surface abuts against the first inclined surface.

7. The welding cart of claim 1, wherein: The welding carrier comprises a base, the positioning assembly is arranged on the base, a first elastic member is arranged between the first positioning member and the base, and the first elastic member is used to provide a force required for driving the first positioning member to move in the first direction to the locking position. And / or, a second elastic member is arranged between the second positioning member and the base, and the second elastic member is used to provide a force required for driving the second positioning member to move in the second direction to the locking position. And / or, a third elastic member is arranged between the third positioning member and the base, and the third elastic member is used to provide a force required for driving the third positioning member to move in the second direction to the locking position.

8. The welding carriage of claim 1, wherein: The positioning mechanism is provided with a plurality of groups in the first direction, the movement paths of the plurality of first positioning members are collinearly extended, and the plurality of first positioning members can be synchronously driven; the movement paths of the plurality of second positioning members are parallel to each other, and the plurality of second positioning members can be synchronously driven; and the movement paths of the plurality of third positioning members are parallel to each other, and the plurality of third positioning members can be synchronously driven.

9. The welding carriage of any one of claims 1 to 8, wherein: The first direction is perpendicular to the second direction. And / or, the component to be welded comprises a workpiece and a protective cover, the protective cover is provided with a first cover body, a second cover body and a third cover body which are fixedly connected, the first cover body, the second cover body and the third cover body are respectively located in three planes which intersect with each other, the first cover body abuts against a top portion of the workpiece, the second cover body and the third cover body respectively abut against two adjacent side portions of the workpiece, the second cover body is provided with a welding area which is located at an intersection of the second cover body and the third cover body, the positioning mechanism is in the first mode and the second mode, and the workpiece is located on the support platform. The positioning mechanism is in the third mode, and the workpiece and the protective cover are located in the fixed space.

10. The welding carriage of claim 9, wherein: The workpiece comprises a workpiece main body and a transmission member which extends above the workpiece main body and in the second direction, an upper portion of the second limiting structure is provided with two limiting protrusions which are spaced apart, and / or an upper portion of the third positioning member is provided with an avoiding slot.

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