Turret structure of side seam welding machine

Abstract

The invention provides a turret structure of a side seam welding machine. The turret structure comprises a turret main shaft; the clamping assembly comprises a plurality of clamping mechanisms; the clamping mechanism comprises a jacking element, a bearing element, a clamping element and an autorotation element; the jacking element, the clamping element and the autorotation element are all connected with the bearing element, and the bearing element is provided with a bearing part; the cam assembly is provided with four sections of path structures which are distributed in the circumferential direction of the rotating tower main shaft so as to independently control the actions of the jacking element, the bearing element, the clamping element and the autorotation element; one end of each autorotation element is connected with the turret main shaft through a transmission mechanism, and the other end of each autorotation element is arranged above the bearing part of the corresponding bearing element. The structure can be driven by the turret main shaft, the jacking element, the bearing element, the clamping element and the autorotation element are arranged, stable and accurate welding of the battery cell turret type side seam is achieved, the working efficiency is high, and the welding effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of laser processing, and in particular to a turret structure of a side seam welding machine. Background Art

[0002] Cell side seam welding refers to welding the side of a cell (such as a power lithium battery cell) to ensure the structural integrity and sealing of the cell. This step is crucial to prevent leakage of substances inside the cell and improve battery safety and performance stability.

[0003] The original cylindrical battery side seam welding machine adopts linear feeding to the welding station for positioning before laser welding. The welding speed is slow and the welding effect is poor. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a turret structure for a side seam welding machine. The structure of the present invention can be driven by the turret main shaft, and a lifting element, a supporting element, a clamping element and a rotation element are provided to achieve stable and precise welding of the turret side seams of the battery cells, with high work efficiency and good welding effect.

[0005] A turret structure of a side seam welding machine, comprising: a turret main shaft; a clamping assembly, comprising a plurality of clamping mechanisms; the clamping mechanisms comprising a lifting element, a supporting element for supporting a battery cell, a clamping element for clamping the battery cell, and a self-rotating element for driving the battery cell to rotate, which are arranged in sequence from bottom to top; the lifting element, the clamping element, and the self-rotating element are all connected to the supporting element, the supporting element is provided with a supporting portion for supporting the battery cell, and the supporting elements are all sleeved on the turret main shaft;

[0006] A cam assembly, wherein the cam assembly is provided with four path structures distributed along the circumference of the turret main shaft to separately control the actions of the lifting element, the supporting element, the clamping element and the rotating element;

[0007] One end of each of the self-rotating elements is connected to the turret main shaft through a transmission mechanism, and the other end of each of the self-rotating elements is arranged above the supporting portion corresponding to the supporting element.

[0008] According to a preferred embodiment, the four-segment path structure includes a first path structure arranged corresponding to the lifting element, a second path structure arranged corresponding to the supporting element, a third path structure arranged corresponding to the clamping element, and a fourth path structure arranged corresponding to the rotation element.

[0009] According to a preferred embodiment, the cam assembly includes a first cam, the first cam is sleeved on the turret main shaft, the first path structure is a first guide slot, the first guide slot is provided with an outer wall of the first cam, and the lifting element is provided with a first follower;

[0010] The first follower movably cooperates with the first guide slot to control the lifting and lowering of the lifting element.

[0011] According to a preferred embodiment, the second path structure is a second guide slot, and the second guide slot is arranged at the top of the first cam; the supporting element is provided with a second follower; the second follower is movably cooperated with the second guide slot to control the position of the supporting element.

[0012] According to a preferred embodiment, the cam assembly includes a second cam, the second cam is arranged above the first cam, the third path structure is a third guide slot, the third guide slot is arranged on the outer wall of the second cam, and the clamping element is provided with a third follower;

[0013] The third follower movably cooperates with the third guide slot to control the opening and closing of the clamping element.

[0014] According to a preferred embodiment, the cam assembly includes a third cam, the third cam is arranged above the second cam, the fourth path structure is a fourth guide slot, the fourth guide slot is arranged on the outer wall of the third cam, and the rotation element is provided with a fourth follower;

[0015] The fourth follower movably cooperates with the fourth guide slot to control the rotation of the rotating element.

[0016] According to a preferred embodiment, the supporting portion is provided with a hollow battery cell support cup;

[0017] The lifting element is provided with a lifting slider, and the supporting element is vertically provided with a lifting rail. The lifting slider is slidably matched with the lifting rail. The rotation of the turret main shaft causes the upper end of the lifting element to penetrate the bottom of the battery cell support cup from bottom to top to press the battery cell tightly.

[0018] According to a preferred embodiment, the clamping element includes a first positioning block, a second positioning block, and a driving plate, the driving plate is provided with two inclined sliding grooves, the first positioning block and the second positioning block are respectively arranged in the two inclined sliding grooves in a one-to-one correspondence, and the rotation of the turret main shaft causes the first positioning block and the second positioning block to move closer to or away from each other.

[0019] According to a preferred embodiment, the first positioning block is provided with a first guide wheel, and the second positioning block is provided with a second guide wheel;

[0020] The first guide wheel is in sliding cooperation with the first positioning block, and the second guide wheel is in sliding cooperation with the second positioning block.

[0021] According to a preferred embodiment, a main bevel gear is sleeved on the top of the turret main shaft, and the transmission mechanism includes a transmission element, and a first bevel gear is sleeved on one end of the transmission element close to the turret main shaft, and the main bevel gear and the first bevel gear are meshed with each other;

[0022] The other end of the transmission element is movably matched with the upper end of the rotating element through the second bevel gear, so as to cause the rotating element to rotate;

[0023] A rotating wheel is arranged at the lower end of the rotating element.

[0024] According to a preferred embodiment, a rotating disk is further included, the transmission element is arranged on the rotating disk, and the transmission element is provided with a clamp unit;

[0025] The clamp unit comprises a clamp slider and two clamp clamp blocks; the two clamp clamp blocks are respectively located in two clamp grooves of the clamp slider;

[0026] The fourth follower is connected to the clamp slider, and the movement of the fourth follower can cause the clamp slider to move, so as to control the two clamp clamping blocks to move closer to or farther away from each other.

[0027] According to a preferred embodiment, the transmission mechanism includes a friction clutch structure to achieve separation of power transmission of the transmission mechanism;

[0028] The transmission element comprises a transmission rod and a universal joint, and the transmission rod is connected to the universal joint.

[0029] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0030] The structure of the present invention can be driven by the turret main shaft, which saves energy and reduces investment cost. A lifting element is provided to tighten the battery cell of the supporting part, a supporting element supports the battery, a clamping element stably clamps the battery cell, and a rotating element satisfies the rotation of the battery cell, thereby realizing stable and precise welding of the turret side seams of the battery cell, with high work efficiency and good welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the three-dimensional structure of a turret structure of a side seam welding machine provided by an embodiment of the present invention;

[0033] Figure 2 A partial side structural schematic diagram of a turret structure of a side seam welding machine provided by an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of a partial three-dimensional structure of a turret structure of a side seam welding machine provided by an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of another part of the three-dimensional structure of a turret structure of a side seam welding machine provided by an embodiment of the present invention;

[0036] Figure 5 for Figure 4 Schematic diagram of the local split structure;

[0037] Figure 6 A schematic diagram of the three-dimensional structure of a turntable and a transmission element provided in an embodiment of the present invention;

[0038] Figure 7 A schematic diagram of the structure of the transmission element and the rotation element provided in the embodiment of the present invention;

[0039] Figure 8 A schematic diagram of a top view of a transmission element and a rotation element provided in an embodiment of the present invention;

[0040] Fig. 9 A schematic diagram of a partial three-dimensional structure of a clamping mechanism provided in an embodiment of the present invention;

[0041] Fig.10 A schematic structural diagram of a clamping mechanism provided in an embodiment of the present invention.

[0042] Icons: 1. Turret spindle; 2. Lifting element; 3. Support element; 31. Second follower; 4. Clamping element; 5. Rotation element; 6. First cam; 7. First guide chute; 8. First follower; 9. Second guide chute; 10. Second cam; 11. Third guide chute; 12. Third follower; 13. Third cam; 14. Fourth guide chute; 15. Fourth follower; 16. Cell support cup; 17. Lifting rail; 18, lifting slider; 19, first positioning block; 191, first guide wheel; 20, second positioning block; 201, second guide wheel; 21, driving plate; 211, inclined slide; 22, transmission element; 23, first bevel gear; 24, second bevel gear; 25, turntable; 26, clamp unit; 261, clamp slider; 262, clamp clamping block; 27, self-rotating wheel; 28, friction clutch structure. DETAILED DESCRIPTION

[0043] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0046] Example

[0047] Please refer to Figures 1 to 10A turret structure of a side seam welding machine comprises: a turret spindle 1; a clamping assembly, comprising a plurality of clamping mechanisms; the clamping mechanism comprises a lifting element 2, a supporting element 3 for supporting a battery cell, a clamping element 4 for clamping the battery cell and a rotation element 5 for driving the battery cell to rotate, which are arranged in sequence from bottom to top; the lifting element 2, the clamping element 4 and the rotation element 5 are all connected to the supporting element 3, the supporting element 3 is provided with a supporting portion for supporting the battery cell, and the supporting elements 3 are all sleeved on the turret spindle 1; a cam assembly, the cam assembly is provided with four path structures distributed circumferentially along the turret spindle 1, so as to separately control the actions of the lifting element 2, the supporting element 3, the clamping element 4 and the rotation element 5; one end of each rotation element 5 is connected to the turret spindle 1 through a transmission mechanism, and the other end of each rotation element 5 is arranged above the supporting portion of the corresponding supporting element 3.

[0048] Preferably, the four-segment path structure includes a first path structure arranged corresponding to the lifting element 2 , a second path structure arranged corresponding to the supporting element 3 , a third path structure arranged corresponding to the clamping element 4 , and a fourth path structure arranged corresponding to the rotation element 5 .

[0049] Preferably, the cam assembly includes a first cam 6, the first cam 6 is sleeved on the turret main shaft 1, the first path structure is a first guide slot 7, the first guide slot 7 is provided on the outer wall of the first cam 6, and the lifting element 2 is provided with a first follower 8;

[0050] The first follower 8 movably cooperates with the first guide slot 7 to control the lifting and lowering of the lifting element 2 .

[0051] Preferably, the second path structure is a second guide slot 9, which is arranged at the top of the first cam 6; the supporting element 3 is provided with a second follower 31; the second follower 31 movably cooperates with the second guide slot 9 to control the position of the supporting element 3.

[0052] Preferably, the cam assembly includes a second cam 10, the second cam 10 is arranged above the first cam 6, the third path structure is a third guide slot 11, the third guide slot 11 is arranged on the outer wall of the second cam 10, and the clamping element 4 is provided with a third follower 12;

[0053] The third follower 12 movably cooperates with the third guide slot 11 to control the opening and closing of the clamping element 4 .

[0054] Preferably, the cam assembly includes a third cam 13, the third cam 13 is arranged above the second cam 10, the fourth path structure is a fourth guide slot 14, the fourth guide slot 14 is arranged on the outer wall of the third cam 13, and the rotation element 5 is provided with a fourth follower 15;

[0055] The fourth follower 15 movably cooperates with the fourth guide slot 14 to control the rotation of the rotating element 5 .

[0056] Preferably, the supporting portion is provided with a hollow battery cell support cup 16;

[0057] The lifting element 2 is provided with a lifting slider 18, and the supporting element 3 is vertically provided with a lifting rail 17. The lifting slider 18 slides with the lifting rail 17, and the rotation of the turret main shaft 1 causes the upper end of the lifting element 2 to penetrate the bottom of the battery cell support cup 16 from bottom to top to press the battery cell tightly.

[0058] Preferably, the clamping element 4 includes a first positioning block 19, a second positioning block 20, and a driving plate 21. The driving plate 21 has two inclined slots 211. The first positioning block 19 and the second positioning block 20 are respectively arranged in the two inclined slots 211 in a one-to-one correspondence. The rotation of the turret main shaft 1 causes the first positioning block 19 and the second positioning block 20 to move closer to or away from each other.

[0059] Preferably, the first positioning block 19 is provided with a first guide wheel 191, and the second positioning block 20 is provided with a second guide wheel 201;

[0060] The first guide wheel 191 is slidably matched with the first positioning block 19 , and the second guide wheel 201 is slidably matched with the second positioning block 20 .

[0061] Preferably, a main bevel gear is sleeved on the top of the turret main shaft 1, and the transmission mechanism includes a transmission element 22, and a first bevel gear 23 is sleeved on one end of the transmission element 22 close to the turret main shaft 1, and the main bevel gear and the first bevel gear 23 are meshed with each other;

[0062] The other end of the transmission element 22 is movably matched with the upper end of the rotating element 5 through the second bevel gear 24, so as to cause the rotating element 5 to rotate;

[0063] A rotating wheel 27 is provided at the lower end of the rotating element 5 .

[0064] Preferably, a turntable 25 is further included, the transmission element 22 is arranged on the turntable 25, and the transmission element 22 is provided with a clamp unit 26;

[0065] The clamp unit 26 includes a clamp slider 261 and two clamp clamp blocks 262; the two clamp clamp blocks 262 are respectively located in two clamp grooves of the clamp slider 261;

[0066] The fourth follower 15 is connected to the clamp slider 261 . The movement of the fourth follower 15 can cause the clamp slider 261 to move, so as to control the two clamp clamp blocks 262 to move closer to or farther from each other.

[0067] Preferably, the transmission mechanism includes a friction clutch structure 28 to achieve separation of the power transmission of the transmission mechanism;

[0068] The transmission element 22 includes a transmission rod and a universal joint, and the transmission rod is connected to the universal joint.

[0069] Working principle of the present invention:

[0070] In this embodiment, the first cam 6 is provided with a first guide slot 7 and a second guide slot 9. The first guide slot 7 is arranged along the outer wall of the first cam 6 in a circumferentially inclined manner. The second guide slot 9 is arranged at the top of the first cam 6. The second guide slot 9 has a partial straight section. When the second follower 31 moves to the partial straight section, the position is a welding area. The first follower 8, the second follower 31, the third follower 12, and the fourth follower 15 can all select movable rollers. That is, the first follower 8 can be provided with a first follower wheel, the second follower 31 can be provided with a second follower wheel, the third follower 12 can be provided with a third follower wheel, that is, the fourth follower 15 can be provided with a fourth follower wheel. The first follower wheel can slide or roll in the first guide slot 7, thereby driving the lifting element 2 to rise and fall. The lifting element 2 is a rotatable rod-shaped structure, which limits the linear displacement range of vertical lifting through the lifting slider 18 and the lifting rail 17 to prevent the lifting from deviating from the set direction. The lifting slide rail 17 is arranged at the bottom of the supporting element 3, and the clamping element 4 is arranged on the supporting element 3 to ensure that the lifting element 2 is located directly below the supporting part and part of the clamping element 4 is located above the supporting part to clamp the battery cell. The lifting element 2, the supporting element 3, the clamping element 4 and the rotating element 5 rotate synchronously, wherein the output end of the rotating element 5 drives the rotating wheel 27 to rotate, and the lifting element 2 passes through the battery cell support cup 16 to tighten the battery cell upward. The clamping end of the clamping element 4, i.e., the first guide wheel 191 of the first positioning block 19 and the second guide wheel 201 of the second positioning block 20, clamps and positions the battery cell and can satisfy the rotation of the battery cell, thereby driving the battery cell on the supporting part to rotate, and realizing the laser equipment to weld its rotating side seam. The driving plate 21 is arranged behind the supporting element 3, and the rear ends of the first positioning block 19 and the second positioning block 20 are respectively filled in the corresponding inclined slide grooves 211. The clamping element 4 includes a vertical plate and a supporting portion extending outward. The rear ends of the first positioning block 19 and the second positioning block 20 can pass through the vertical plate of the clamping element 4 and move left and right. When the driving plate 21 moves with the movement of the third follower 12, it drives the first positioning block 19 and the second positioning block 20 to move closer to or away from each other, and then drives the first guide wheel 191 and the second guide wheel 201 to move closer to or away from each other. In this embodiment, two first guide wheels 191 are arranged side by side but not limited to two, and two second guide wheels 201 are arranged side by side but not limited to two. The first guide wheel 191 and the second guide wheel 201 are symmetrically arranged to ensure that the battery cell is clamped and positioned and can rotate. The battery cell holder 16 is hollow and a battery cell can be placed in the battery cell holder 16. The top of the battery cell protrudes from the battery cell holder 16. Therefore, the first guide wheel 191 and the second guide wheel 201 can clamp the protruding portion of the battery cell from the battery cell holder 16. Furthermore, when the lifting element 2 passes through the battery cell holder 16 to lift the battery cell, it is easier for the first guide wheel 191 and the second guide wheel 201 to contact the battery cell.

[0071] A second bevel gear 24 is disposed at the upper end of the self-rotating element 5, and a second bevel gear 24 is also disposed at the output end of the transmission element 22. The second bevel gears 24 are disposed as a group, and the two mesh with each other; Figure 6 There is a housing covering two second bevel gears 24, such as Figure 7 As shown, the transmission element 22 is rotated through the universal joint and then meshes with the second bevel gear 24 of the rotating element 5 through the second bevel gear 24 at the output end for transmission. The universal joint is arranged on the side of the clamp unit 26 close to the rotating element 5 to meet the power flipping angle and transmit the rotational power of the turret main shaft 1 to the rotating element 5; the output end of the transmission element 22 is also provided with a second bevel gear 24 and a plurality of springs extending into the housing where the second bevel gear 24 is located to avoid misalignment of the second bevel gear 24 of the transmission element 22 and the second bevel gear 24 of the rotating element 5.

[0072] In this embodiment, the transmission element 22 includes a transmission rod, a universal joint, and a second bevel gear 24; the transmission rod and the universal joint form the transmission element 22, the friction clutch structure 28 and the clamp unit 26 are arranged on the transmission rod, and one end of the transmission rod is provided with a first bevel gear 23 which meshes with the main bevel gear of the turret main shaft 1, and the other end of the transmission rod passes through the universal joint, and then through the second bevel gear 24 of the universal joint to mesh with the second bevel gear 24 of the rotation element 5 to realize power transmission.

[0073] The friction clutch structure 28 is a friction clutch that can realize the separation of power transmission. When it is not necessary to drive the self-rotating element 5 to rotate, the friction clutch structure 28 can be controlled to separate the output power, so that the transmission element 22 does not output power to the self-rotating element 5. The clamp unit 26 can limit the output shaft of the transmission rod, and the fourth follower 15 can be used to drive the two clamp clamp blocks 262 to move closer to or away from each other, thereby controlling the rotation of the transmission rod, that is, the transmission element 22. The two clamp clamp blocks 262 are respectively arranged on both sides of the transmission rod (transmission element 22). The turntable 25 is sleeved on the turret main shaft 1 and rotates with the rotation of the turret main shaft 1. The turntable 25 can be provided with a plurality of clamping mechanisms, each of which is driven by the turret main shaft 1. Each rotating element 5 is connected to the rotating shaft main shaft through the corresponding transmission element 22, so that one turret main shaft 1 drives multiple rotating elements 5; while the turret main shaft 1 rotates, the first cam 6, the second cam 10, and the third cam 13 are driven to rotate synchronously. The first cam 6, the second cam 10, and the third cam 13 set the trajectories of the first guide groove 7, the second guide groove 9, the third guide groove 11, and the fourth guide groove 14 according to the processing time, and can set a single curve path such as an inclined curve, a horizontal arc, or a multi-curve path or a straight line path, or a single or combined curve path.

[0074] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

[0075] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A turret structure of a side seam welding machine, characterized in that: include: Turret spindle; The clamping assembly comprises a plurality of clamping mechanisms; the clamping mechanisms comprise a lifting element, a supporting element for supporting a battery cell, a clamping element for clamping the battery cell and a rotating element for driving the battery cell to rotate, which are arranged in sequence from bottom to top; the lifting element, the clamping element and the rotating element are all connected to the supporting element, the supporting element is provided with a supporting portion for supporting the battery cell, and the supporting elements are all sleeved on the main shaft of the turret; A cam assembly, wherein the cam assembly is provided with four path structures distributed along the circumference of the turret main shaft to separately control the actions of the lifting element, the supporting element, the clamping element and the rotating element; One end of each of the self-rotating elements is connected to the turret main shaft through a transmission mechanism, and the other end of each of the self-rotating elements is arranged above the supporting portion corresponding to the supporting element.

2. The turret structure of the side seam welding machine according to claim 1 is characterized in that: The four-segment path structure includes a first path structure corresponding to the lifting element, a second path structure corresponding to the supporting element, a third path structure corresponding to the clamping element, and a fourth path structure corresponding to the rotating element.

3. The turret structure of the side seam welding machine according to claim 2 is characterized in that: The cam assembly includes a first cam, the first cam is sleeved on the turret main shaft, the first path structure is a first guide slot, the first guide slot is provided on the outer wall of the first cam, and the lifting element is provided with a first follower; The first follower movably cooperates with the first guide slot to control the lifting and lowering of the lifting element.

4. The turret structure of the side seam welding machine according to claim 3 is characterized in that: The second path structure is a second guide slot, and the second guide slot is arranged on the top of the first cam; the supporting element is provided with a second follower; the second follower is movably matched with the second guide slot to control the position of the supporting element.

5. The turret structure of the side seam welding machine according to claim 4, characterized in that: The cam assembly includes a second cam, the second cam is arranged above the first cam, the third path structure is a third guide slot, the third guide slot is arranged on the outer wall of the second cam, and the clamping element is provided with a third follower; The third follower movably cooperates with the third guide slot to control the opening and closing of the clamping element.

6. The turret structure of the side seam welding machine according to claim 5, characterized in that: The cam assembly includes a third cam, the third cam is arranged above the second cam, the fourth path structure is a fourth guide slot, the fourth guide slot is arranged on the outer wall of the third cam, and the rotation element is provided with a fourth follower; The fourth follower movably cooperates with the fourth guide slot to control the rotation of the rotating element.

7. The turret structure of the side seam welding machine according to claim 2, characterized in that: The supporting portion is provided with a hollow battery cell support cup; The lifting element is provided with a lifting slider, and the supporting element is vertically provided with a lifting rail. The lifting slider is slidably matched with the lifting rail. The rotation of the turret main shaft causes the upper end of the lifting element to penetrate the bottom of the battery cell support cup from bottom to top to press the battery cell tightly.

8. The turret structure of the side seam welding machine according to claim 2, characterized in that: The clamping element includes a first positioning block, a second positioning block, and a driving plate. The driving plate is provided with two inclined slots. The first positioning block and the second positioning block are respectively arranged in the two inclined slots in a one-to-one correspondence. The rotation of the turret main shaft causes the first positioning block and the second positioning block to move closer to or away from each other.

9. The turret structure of the side seam welding machine according to claim 8, characterized in that: The first positioning block is provided with a first guide wheel, and the second positioning block is provided with a second guide wheel; The first guide wheel is in sliding cooperation with the first positioning block, and the second guide wheel is in sliding cooperation with the second positioning block.

10. The turret structure of the side seam welding machine according to claim 1, characterized in that: A main bevel gear is sleeved on the top of the turret main shaft, and the transmission mechanism includes a transmission element, and a first bevel gear is sleeved on one end of the transmission element close to the turret main shaft, and the main bevel gear and the first bevel gear are meshed with each other; The other end of the transmission element is movably matched with the upper end of the rotating element through the second bevel gear, so as to cause the rotating element to rotate; A rotating wheel is arranged at the lower end of the rotating element.

11. The turret structure of the side seam welding machine according to claim 6, characterized in that: It also includes a turntable, the transmission element is arranged on the turntable, and the transmission element is provided with a clamp unit; The clamp unit comprises a clamp slider and two clamp clamp blocks; the two clamp clamp blocks are respectively located in two clamp grooves of the clamp slider; The fourth follower is connected to the clamp slider, and the movement of the fourth follower can cause the clamp slider to move, so as to control the two clamp clamping blocks to move closer to or farther away from each other.

12. The turret structure of the side seam welding machine according to claim 10, characterized in that: The transmission mechanism includes a friction clutch structure to achieve separation of power transmission of the transmission mechanism; The transmission element comprises a transmission rod and a universal joint, and the transmission rod is connected to the universal joint.

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