High-speed and high-precision welding conveying device

Abstract

The utility model provides a high-speed high-precision welding conveying device, which relates to the technical field of battery production, and comprises a first slide rail, a carrier supporting plate and a first positioning component, the first slide rail is a linear guide rail, the carrier supporting plate is arranged on the first slide rail, the carrier supporting plate can move along the rail direction of the first slide rail, and the first positioning component is arranged on the first slide rail. The first positioning assembly comprises a first driving mechanism, a moving plate, a positioning driving mechanism and a first positioning plate, the first driving mechanism is constructed to be a linear motor, the first driving mechanism can drive the moving plate to move in the rail direction of the first sliding rail, and the positioning driving mechanism is arranged on the moving plate; the positioning driving mechanism can drive the first positioning plate to move towards the carrier supporting plate and can enable the first positioning plate to be clamped to the carrier supporting plate. According to the utility model, the first sliding rail is the linear guide rail, and the first driving mechanism is the linear motor, so that the carrier supporting plate can be accurately moved to the required welding position under the high-precision control of the linear guide rail and the linear motor.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a high-speed and high-precision welding conveying device. Background Art

[0002] In the production process of batteries, the battery shell and top cover need to be welded. During the welding process, whether the welding position of the battery shell and the top cover is accurately aligned with the welding head position will greatly affect the welding quality and welding efficiency of the shell and the top cover.

[0003] Among them, the welding quality of the sealing pins has a direct impact on the sealing effect of the battery electrolyte. During the welding process, the battery sealing pins need to be moved to the predetermined welding position through the conveyor line. In order to ensure the welding quality, the conveyor line must be guaranteed to have high precision and high stability.

[0004] However, most of the conveyor lines in the prior art are ring chain conveyor lines or ring belt conveyor lines. These two types of conveyor lines will cause inaccurate positioning due to chain gaps or belt gaps. Moreover, as the use time increases, the chain and belt will be stretched and deformed, and this inaccurate positioning phenomenon will become more obvious. In addition, the shape of the sealing nails is varied, and the requirements for machine efficiency are increasing day by day. The welding accuracy requirements for sealing nails are also increasing accordingly. Low-precision welding has gradually failed to meet actual needs. Utility Model Content

[0005] The utility model provides a high-speed and high-precision welding conveying device, which is used to solve the defect that the conveying line in the prior art is inaccurately positioned and cannot meet the welding precision requirements of the sealing nails.

[0006] The utility model provides a high-speed and high-precision welding conveying device, comprising: a first slide rail, a carrier support plate and a first positioning assembly, wherein the first slide rail is configured as a linear guide rail, the carrier support plate is arranged on the first slide rail, and the carrier support plate can move along the track direction of the first slide rail.

[0007] The first positioning assembly includes: a first driving mechanism, a movable plate, a positioning driving mechanism and a first positioning plate. The first driving mechanism is constructed as a linear motor. The first driving mechanism can drive the movable plate to move along the track direction of the first slide rail. The positioning driving mechanism is arranged on the movable plate. The positioning driving mechanism can drive the first positioning plate to move toward the carrier pallet and enable the first positioning plate to be clamped to the carrier pallet.

[0008] According to a high-speed and high-precision welding conveying device provided by the utility model, a first clamping groove is provided on the side of the carrier pallet, the positioning drive mechanism can drive the first positioning plate to move in the width direction of the first slide rail, and the first positioning plate is provided with a first clamping block adapted to the first clamping groove.

[0009] According to a high-speed and high-precision welding conveying device provided by the utility model, the first clamping groove is configured as a limiting groove with a triangular cross-section, and the first clamping block is configured as a limiting protrusion with a triangular cross-section.

[0010] According to a high-speed and high-precision welding conveying device provided by the utility model, the movable plate is provided with a positioning slide rail extending along the width direction of the first slide rail, the first positioning plate is arranged on the positioning slide rail, and the first positioning plate can move along the track direction of the positioning slide rail.

[0011] According to a high-speed and high-precision welding conveying device provided by the utility model, it also includes a second positioning component, which includes: a second driving mechanism and a second positioning plate, and the second driving mechanism can drive the second positioning plate to move toward the carrier pallet, and can enable the second positioning plate to be clamped to the carrier pallet.

[0012] According to a high-speed and high-precision welding conveying device provided by the utility model, a second clamping groove is arranged at the bottom of the carrier plate, the second driving mechanism can drive the second positioning plate to reciprocate in the vertical direction, and the second positioning plate is provided with a second clamping block adapted to the second clamping groove.

[0013] According to a high-speed and high-precision welding conveying device provided by the utility model, it also includes a second slide rail, an extension slide rail and a transverse movement mechanism, wherein the first slide rail and the second slide rail are arranged in parallel and spaced apart, and the transverse movement mechanism can drive the extension slide rail to move between a first position and a second position, wherein:

[0014] When the extension rail is located at the first position, the extension rail is coupled to the first rail, and the carrier pallet can move from the first rail to the extension rail;

[0015] When the extension slide rail is located at the second position, the extension slide rail is coupled to the second slide rail, and the carrier pallet can be moved from the extension slide rail to the second slide rail.

[0016] According to a high-speed and high-precision welding conveying device provided by the utility model, the transverse movement mechanism includes: a servo slide, the servo slide is connected to the extension slide rail and can drive the extension slide rail to move along the width direction of the first slide rail.

[0017] According to a high-speed and high-precision welding conveying device provided by the utility model, the transverse movement mechanism includes: a transverse rail and a transverse positioning seat, the transverse rail extends along the width direction of the first slide rail and is arranged at the ends of the first slide rail and the second slide rail, the transverse positioning seat is connected to the bottom of the extended slide rail, and the transverse positioning seat is arranged on the transverse rail and can move along the track direction of the transverse rail.

[0018] According to a high-speed and high-precision welding conveying device provided by the utility model, it also includes a position sensor, which is arranged on the extension slide rail and is used to sense the position of the carrier plate.

[0019] The high-speed and high-precision welding conveying device provided by the utility model includes: a first slide rail, a carrier pallet and a first positioning assembly. The first positioning assembly can drive the carrier pallet to move on the first slide rail. Since the first slide rail is a linear guide rail, the first driving mechanism in the first positioning assembly is a linear motor. Under the high-precision control of the linear guide rail and the linear motor, it can ensure that the carrier carried on the carrier pallet is accurately moved to the required welding position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of a high-speed and high-precision welding conveying device according to one embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A magnified view of part A;

[0023] Figure 3 yes Figure 1 A magnified view of part B;

[0024] Figure 4 yes Figure 1 The structural schematic diagram of the transverse movement mechanism in the high-speed and high-precision welding conveying device is shown in.

[0025] Reference numerals:

[0026] 1. First slide rail; 2. Carrier plate; 3. First drive mechanism; 4. Moving plate; 5. First positioning plate; 6. First snap-in groove; 7. First snap-in block; 8. Positioning rail; 9. Second drive mechanism; 10. Second positioning plate; 11. Second snap-in groove; 12. Second snap-in block; 13. Second slide rail; 14. Extension slide rail; 15. Servo slide; 16. Transverse rail; 17. Transverse positioning seat; 18. Position sensor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In one embodiment of the present invention, a high-speed and high-precision welding conveying device is provided. Figure 1 As shown, the device includes: a first slide rail 1, a carrier plate 2 and a first positioning assembly, wherein the first positioning assembly can drive the carrier plate 2 to move along the track direction of the first slide rail 1, wherein the first slide rail 1 is a linear guide rail, and the driving mechanism in the first positioning assembly is a linear motor, which can ensure that the carrier carried on the carrier plate 2 moves accurately to the required position under the high-precision control of the linear guide rail and the linear motor. Figures 1 to 4 The figure further describes the high-speed and high-precision welding conveying device in this embodiment.

[0029] Specifically, if Figure 1 As shown, the high-speed and high-precision welding conveying device in this embodiment includes: a first slide rail 1, a carrier pallet 2 and a first positioning assembly, the first slide rail 1 is constructed as a linear guide rail, the carrier pallet 2 is arranged on the first slide rail 1, and the carrier pallet 2 can move along the track direction of the first slide rail 1.

[0030] It can be understood that the first slide rail 1 is a long straight track, and the carrier pallet 2 can reciprocate on the first slide rail 1 along the track direction of the first slide rail 1. Among them, the straight track has a high degree of precision, and when the carrier pallet 2 moves on the first slide rail 1, it has a sufficiently precise position in both the width direction and the height direction of the first slide rail 1.

[0031] like Figure 2As shown, the first positioning assembly includes: a first driving mechanism 3, a movable plate 4, a positioning driving mechanism and a first positioning plate 5. The first driving mechanism 3 is constructed as a linear motor. The first driving mechanism 3 can drive the movable plate 4 to move along the track direction of the first slide rail 1. The positioning driving mechanism is arranged on the movable plate 4. The positioning driving mechanism can drive the first positioning plate 5 to move toward the carrier pallet 2, and can enable the first positioning plate 5 to be clamped to the carrier pallet 2.

[0032] It can be understood that the first driving mechanism 3 is a linear motor, which can drive the moving plate 4 to move precisely in the track direction of the first slide rail 1. The positioning driving mechanism and the first positioning plate 5 are both arranged on the moving plate 4, and the positioning driving mechanism can drive the first positioning plate 5 to move in the direction close to and away from the carrier pallet 2, and the first positioning plate 5 can be snapped to the carrier pallet 2 at a position sufficiently close to the carrier pallet 2.

[0033] In a specific usage scenario, a plurality of processing stations can be arranged on the first slide rail 1 along its track direction, at least one of which is a welding station, and each station is provided with a first positioning component one by one, and the products and carriers to be processed can be placed on the carrier pallet 2.

[0034] In the actual production process, when it is necessary to move the product and carrier on the current station to the next welding station, a carrier pallet 2 is placed at the processing position of the current station, the carrier pallet 2 carries a carrier, and the product to be welded is placed on the carrier. In the first positioning assembly corresponding to the station, the first drive mechanism 3 can move the movable plate 4 to the processing position of the current station. Afterwards, the positioning drive mechanism drives the first positioning plate 5 to move toward the carrier pallet 2 until the first positioning plate 5 can be snapped onto the carrier pallet 2 of the current station. Next, the first drive mechanism 3 drives the movable plate 4 to move toward the next welding station. Since the first positioning plate 5 set on the movable plate 4 is snapped onto the carrier pallet 2, at this time, the carrier pallet 2 can also move along the track direction of the first slide rail 1.

[0035] After the carrier pallet 2 moves to the welding position of the next welding station, the positioning drive mechanism will drive the first positioning plate 5 to move away from the carrier pallet 2 until the first positioning plate 5 completely leaves the carrier pallet 2. Finally, the first drive mechanism 3 drives the moving plate 4 to return to the previous station, so as to move the subsequent carrier pallet 2 to the next welding station again.

[0036] In this embodiment, since the first slide rail 1 is a linear guide rail and the first driving mechanism 3 is a linear motor, under the high-precision control of the linear guide rail and the linear motor, it can be ensured that the carrier moves accurately to the required welding position.

[0037] Furthermore, in this embodiment, in order to achieve effective clamping between the first positioning plate 5 and the carrier plate 2, it is ensured that the first positioning plate 5 can accurately drive the carrier plate 2 to move. Figure 2 As shown, a first clamping groove 6 is provided on the side of the carrier pallet 2 , and the positioning drive mechanism can drive the first positioning plate 5 to move in the width direction of the first slide rail 1 . The first positioning plate 5 is provided with a first clamping block 7 adapted to the first clamping groove 6 .

[0038] Exemplarily, the first snap-in groove 6 on the side of the carrier pallet 2 can be constructed as a slot or hole with an opening that gradually increases in size. For example, the first snap-in groove 6 can be constructed as an opening with a U-shaped, V-shaped, cylindrical or conical structure. The first snap-in block 7 of the first positioning plate 5 can be constructed as a wedge-shaped, conical or columnar shape with a gradually decreasing end cross-section. For example, the first snap-in block 7 can be constructed as a V-shaped wedge block or a cone.

[0039] The first positioning plate 5 can be arranged on the side of the first slide rail 1. At the same time, the positioning drive mechanism can drive the first positioning plate 5 to move toward the first slide rail 1 in the width direction of the first slide rail 1, so that when the carrier pallet 2 is in the welding position, the first clamping block 7 of the first positioning plate 5 can be effectively clamped into the first clamping groove 6 of the carrier pallet 2 under the drive of the positioning drive mechanism.

[0040] In a specific embodiment, the first clamping groove 6 can be configured as a limiting groove with a triangular cross section, and the first clamping block 7 can be configured as a limiting protrusion with a triangular cross section.

[0041] Therefore, when the first clamping block 7 is clamped into the first clamping groove 6, the two inclined surfaces of the first clamping block 7 can fully abut against the two inclined surfaces of the first clamping groove 6, so that the first positioning plate 5 can accurately position the carrier pallet 2, ensuring that the carrier pallet 2 can be accurately moved to the required position under the drive of the first driving mechanism 3.

[0042] Moreover, in order to avoid excessive interference between the tip of the first clamping block 7 and the first clamping groove 6, in the present embodiment, a receiving cavity may be further provided at the bottom of the first clamping groove 6 at the position where the two inclined surfaces meet. Thus, when the first clamping block 7 is clamped into the first clamping groove 6, the tip of the first clamping block 7 can be placed in the receiving cavity, thereby avoiding interference and ensuring positioning accuracy.

[0043] Furthermore, in order to accurately position the movement of the first positioning plate 5, as Figure 2 As shown, in this embodiment, the movable plate 4 is provided with a positioning track 8 extending along the width direction of the first slide rail 1 , and the first positioning plate 5 is arranged on the positioning track 8 , and the first positioning plate 5 can move along the track direction of the positioning track 8 .

[0044] For example, the positioning track 8 can be fixedly installed on the moving plate 4 by means of bolts or other mechanisms, and the positioning track 8 is provided with slide grooves on both sides of the track direction of the first slide rail 1. A slider is provided at the bottom of the first positioning plate 5, and a U-shaped accommodating cavity is provided at the bottom of the slider. The positioning track 8 can be accommodated in the U-shaped accommodating cavity of the slider, and the slide grooves on both sides of the positioning track 8 can be simultaneously engaged with the inner wall of the U-shaped accommodating cavity, thereby effectively positioning the lateral movement of the first positioning plate 5.

[0045] In one embodiment, the number of the positioning rails 8 may be two, and the two positioning rails 8 are arranged at intervals in the rail direction of the first slide rail 1 , thereby effectively positioning the movement of the first positioning plate 5 .

[0046] In actual use, after the carrier pallet 2 moves to the required welding position, the first positioning plate 5 will leave the carrier pallet 2. At this time, in order to prevent the carrier pallet 2 from moving, other structures are needed to position the carrier pallet 2.

[0047] Based on this, in this embodiment, if Figure 1 and Figure 3 As shown, the high-speed and high-precision welding conveying device also includes a second positioning component, which includes: a second driving mechanism 9 and a second positioning plate 10. The second driving mechanism 9 can drive the second positioning plate 10 to move toward the carrier pallet 2, and can enable the second positioning plate 10 to be clamped to the carrier pallet 2.

[0048] Exemplarily, the second driving mechanism 9 may be a telescopic cylinder having an output shaft that can be telescoped outwards. The second driving mechanism 9 may be fixedly disposed on the side of the first slide rail 1 by means of bolts or other structures.

[0049] In this embodiment, since a plurality of workstations are arranged on the first slide rail 1 along the track direction thereof, in order to position the carrier pallet 2 at each workstation, the second positioning assembly can be arranged in each workstation one by one.

[0050] In actual production, after the carrier pallet 2 moves to the processing position of the current workstation, the second driving mechanism 9 of the corresponding second positioning assembly in the current workstation can drive the second positioning plate 10 to move toward the carrier pallet 2, so that the second positioning plate 10 is clamped to the carrier pallet 2, thereby accurately and effectively fixing the carrier pallet 2 to the processing position of the current workstation.

[0051] Furthermore, in order to achieve precise positioning between the second positioning plate 10 and the carrier pallet 2, in the present embodiment, a second snap-in groove 11 is provided at the bottom of the carrier pallet 2, and the second driving mechanism 9 can drive the second positioning plate 10 to reciprocate in the vertical direction, and the second positioning plate 10 is provided with a second snap-in block 12 adapted to the second snap-in groove 11.

[0052] Similarly, the second snap-in groove 11 at the bottom of the carrier pallet 2 can also be constructed as a slot or hole with a gradually increasing opening. For example, the second snap-in groove 11 can be constructed as an opening with a U-shaped, V-shaped, cylindrical or conical structure. The second snap-in block 12 of the second positioning plate 10 can be correspondingly constructed as a wedge-shaped, conical or columnar shape with a gradually decreasing end cross-section. For example, the second snap-in block 12 can be constructed as a V-shaped wedge block or a cone.

[0053] In actual use, after the carrier pallet 2 moves to the processing position of the workstation, the second driving mechanism 9 can drive the second positioning plate 10 to move upward toward the carrier pallet 2, so that the second clamping block 12 of the second positioning plate 10 is clamped into the second clamping groove 11 of the carrier pallet 2, thereby accurately and effectively fixing the carrier pallet 2 to the processing position of the current workstation, and then the first driving mechanism 3 drives the first positioning plate 5 away from the carrier pallet 2.

[0054] After the processing of the current workstation is completed, the positioning drive mechanism in the first positioning assembly of the workstation can drive the first positioning plate 5 to be clamped to the carrier pallet 2, and then the second drive mechanism 9 can drive the second positioning plate 10 downward away from the carrier pallet 2, so that the first drive mechanism 3 in the first positioning assembly of the workstation can drive the carrier pallet 2 to move toward the next workstation.

[0055] In this embodiment, in order to ensure the movement accuracy, the first slide rail 1 is constructed as a linear slide rail. However, in actual production, it is necessary to save space. Figure 1 As shown, the high-speed and high-precision welding conveying device also includes a second slide rail 13, an extension slide rail 14 and a transverse movement mechanism. The first slide rail 1 and the second slide rail 13 are arranged in parallel and spaced apart, and the transverse movement mechanism can drive the extension slide rail 14 to move between the first position and the second position.

[0056] When the extension rail 14 is located at the first position, the extension rail 14 is connected to the first rail 1, and the carrier pallet 2 can move from the first rail 1 to the extension rail 14; when the extension rail 14 is located at the second position, the extension rail 14 is connected to the second rail 13, and the carrier pallet 2 can move from the extension rail 14 to the second rail 13.

[0057] Therefore, the carrier pallet 2 on the first slide rail 1 can be moved to the second slide rail 13 by means of the transverse movement mechanism, so that the processing production line can be reasonably configured according to the needs.

[0058] Exemplarily, in order to ensure movement accuracy, the second slide rail 13 may also be configured as a linear slide rail.

[0059] In this embodiment, the two ends of the first slide rail 1 and the second slide rail 13 are flush, and a transverse movement mechanism is provided at both ends. In the actual production process, the carrier pallet 2 can reciprocate between the first slide rail 1 and the second slide rail 13 with the help of the transverse movement mechanism, thereby forming a closed conveying line, so that the carrier pallet 2 can be fully utilized and the production efficiency can be improved.

[0060] In one embodiment, in order to ensure that the extension rail 14 can be respectively coupled to the first rail 1 and the second rail 13, as shown in FIG. Figure 4 As shown, the transverse movement mechanism includes: a servo slide 15 , which is connected to the extension slide rail 14 and can drive the extension slide rail 14 to move along the width direction of the first slide rail 1 .

[0061] That is, in this embodiment, the extension slide rail 14 can be accurately driven to move by the servo slide 15 .

[0062] Furthermore, the transverse movement mechanism may also include: a transverse rail 16 and a transverse positioning seat 17, the transverse rail 16 extends along the width direction of the first slide rail 1 and is arranged at the ends of the first slide rail 1 and the second slide rail 13, the transverse positioning seat 17 is connected to the bottom of the extension slide rail 14, and the transverse positioning seat 17 is arranged on the transverse rail 16 and can move along the track direction of the transverse rail 16.

[0063] Exemplarily, the transverse positioning seat 17 can be fixedly installed on the bottom of the extension slide rail 14 by means of bolts or other structures.

[0064] In actual use, when the servo slide 15 drives the extension slide 14 to move between the first slide 1 and the second slide 13 , the transverse positioning seat 17 connected to the extension slide 14 can also move along the track direction of the transverse track 16 .

[0065] Therefore, with the help of the positioning effect between the transverse positioning seat 17 and the transverse rail 16, it can be ensured that there will be no positional deviation during the movement of the extension slide rail 14, and the gravity of the extension slide rail 14 can be transmitted to the transverse rail 16 via the transverse positioning seat 17. At this time, the transverse rail 16 can also play a load-bearing role.

[0066] In addition, in order to accurately sense the movement of the carrier plate 2 into the extension rail 14, Figure 4 As shown, the high-speed and high-precision welding conveying device further includes a position sensor 18 , which is disposed on the extension slide rail 14 , and is used to sense the position of the carrier plate 2 .

[0067] In actual use, after the carrier pallet 2 moves from the first slide rail 1 to the extension slide rail 14 under the drive of the first positioning assembly, the position sensor 18 can timely sense the position of the carrier pallet 2, thereby ensuring that the extension slide rail 14 has the carrier pallet 2, avoiding the extension slide rail 14 from being empty when moving horizontally.

[0068] Therefore, the high-speed and high-precision welding conveying device in this embodiment has the following advantages:

[0069] The high-speed and high-precision welding conveying device in this embodiment includes: a first slide rail, a carrier pallet and a first positioning assembly. The first positioning assembly can drive the carrier pallet to move on the first slide rail. Since the first slide rail is a linear guide rail, the first driving mechanism in the first positioning assembly is a linear motor. Under the high-precision control of the linear guide rail and the linear motor, it can ensure that the carrier moves accurately to the required welding position.

[0070] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A high-speed and high-precision welding conveying device, characterized in that: include: A first slide rail, a carrier plate and a first positioning assembly, wherein the first slide rail is configured as a linear guide rail, the carrier plate is disposed on the first slide rail, and the carrier plate can move along the track direction of the first slide rail, The first positioning assembly includes: a first driving mechanism, a movable plate, a positioning driving mechanism and a first positioning plate. The first driving mechanism is constructed as a linear motor. The first driving mechanism can drive the movable plate to move along the track direction of the first slide rail. The positioning driving mechanism is arranged on the movable plate. The positioning driving mechanism can drive the first positioning plate to move toward the carrier pallet and enable the first positioning plate to be clamped to the carrier pallet.

2. The high-speed and high-precision welding conveying device according to claim 1 is characterized in that: A first clamping groove is provided on the side of the carrier pallet, and the positioning drive mechanism can drive the first positioning plate to move in the width direction of the first slide rail. The first positioning plate is provided with a first clamping block adapted to the first clamping groove.

3. The high-speed and high-precision welding conveying device according to claim 2 is characterized in that: The first clamping groove is configured as a limiting groove with a triangular cross section, and the first clamping block is configured as a limiting protrusion with a triangular cross section.

4. The high-speed and high-precision welding conveying device according to claim 1, characterized in that: The movable plate is provided with a positioning slide rail extending along the width direction of the first slide rail, the first positioning plate is arranged on the positioning slide rail, and the first positioning plate can move along the track direction of the positioning slide rail.

5. The high-speed and high-precision welding conveying device according to claim 1, characterized in that: It also includes a second positioning assembly, which includes: a second driving mechanism and a second positioning plate, and the second driving mechanism can drive the second positioning plate to move toward the carrier pallet and enable the second positioning plate to be clamped to the carrier pallet.

6. The high-speed and high-precision welding conveying device according to claim 5, characterized in that: A second clamping groove is provided at the bottom of the carrier pallet, and the second driving mechanism can drive the second positioning plate to reciprocate in the vertical direction. The second positioning plate is provided with a second clamping block adapted to the second clamping groove.

7. The high-speed and high-precision welding conveying device according to claim 1, characterized in that: It also includes a second slide rail, an extension slide rail and a transverse movement mechanism, wherein the first slide rail and the second slide rail are arranged in parallel and spaced apart, and the transverse movement mechanism can drive the extension slide rail to move between a first position and a second position, wherein: When the extension rail is located at the first position, the extension rail is coupled to the first rail, and the carrier pallet can move from the first rail to the extension rail; When the extension slide rail is located at the second position, the extension slide rail is coupled to the second slide rail, and the carrier pallet can be moved from the extension slide rail to the second slide rail.

8. The high-speed and high-precision welding conveying device according to claim 7, characterized in that: The transverse movement mechanism includes a servo slide, which is connected to the extension slide rail and can drive the extension slide rail to move along the width direction of the first slide rail.

9. The high-speed and high-precision welding conveying device according to claim 7, characterized in that: The transverse movement mechanism includes: a transverse rail and a transverse positioning seat, the transverse rail extends along the width direction of the first slide rail and is arranged at the ends of the first slide rail and the second slide rail, the transverse positioning seat is connected to the bottom of the extended slide rail, and the transverse positioning seat is arranged on the transverse rail and can move along the track direction of the transverse rail.

10. The high-speed and high-precision welding conveying device according to claim 7, characterized in that: It also includes a position sensor, which is arranged on the extension slide rail and is used to sense the position of the carrier pallet.

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