Skid transfer mechanism

Abstract

The utility model discloses a skid transfer mechanism, which comprises a skid, the roller bed guides the skid in the first direction, the roller bed comprises a first guide rail and a second guide rail which are arranged in the first direction, the first guide rail and the second guide rail are supported by a first bearing platform and a second bearing platform respectively, the first bearing platform and the second bearing platform are arranged in a spaced mode, and the first guide rail and / or the second guide rail are / is arranged in a sliding mode in the second direction. The second direction intersects with the first direction; the automatic guide vehicle is used for bearing the skid, a lifting mechanism is arranged at the top of the automatic guide vehicle, the width of the automatic guide vehicle is smaller than the interval between the first bearing platform and the second bearing platform, and the maximum lifting height of the lifting mechanism is larger than the plane height of the roller bed guide skid. Guiding of the skid is achieved through the roller bed with the first guide rail and the second guide rail capable of being separated, meanwhile, ground conveying of the skid is achieved through the automatic guide vehicle, on-line and off-line transferring of the skid is achieved in combination with the roller bed, the structure is simple, and overhaul and maintenance are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle production equipment, in particular to a sliding skid transfer mechanism. Background Art

[0002] Sleds are used for material handling in automotive production workshops, carrying and transporting products. They typically slide on pre-set tracks on roller beds to quickly transport workpieces. Currently, mainstream automotive welding workshops utilize a combination of equipment, including elevators, transfer machines, and two-tier grid platforms, to circulate and transport sleds. Sled placement and removal from roller beds are both performed through hoisting and roller bed transfer. This is not only complex to operate, but also requires unused sleds to occupy the roller bed line. This results in a large number of equipment components, a complex structure, and high production costs and ongoing maintenance.

[0003] Therefore, how to reduce the cost of the skid equipment production process and improve the convenience of using and maintaining the skid is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a slide transfer mechanism to reduce the cost of the slide equipment production process and improve the convenience of use and maintenance of the slide.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A skid transfer mechanism, comprising:

[0007] skids;

[0008] a roller bed, guiding the slide along a first direction, the roller bed comprising a first guide rail and a second guide rail arranged along the first direction, the first guide rail and the second guide rail being supported by a first bearing platform and a second bearing platform respectively, the first bearing platform and the second bearing platform being spaced apart, and the first guide rail and / or the second guide rail being slidably arranged along a second direction, the second direction intersecting the first direction;

[0009] An automatic guided vehicle is used to carry the sled and is provided with a lifting mechanism on the top. The width of the automatic guided vehicle is smaller than the distance between the first load-bearing platform and the second load-bearing platform, and the maximum lifting height of the lifting mechanism is greater than the plane height of the roller bed guiding the sled.

[0010] Preferably, in the above-mentioned sled transfer mechanism, a first fixed frame is provided on the first bearing platform, the first guide rail is fixedly provided on the top of the first fixed frame, a linear guide rail is provided along the second direction of the first bearing platform, and the first fixed frame is slidably provided on the linear guide rail.

[0011] Preferably, in the above-mentioned sled transfer mechanism, a limit block is fixedly arranged on the first bearing platform, and the first fixed frame abuts against the limit block when sliding along the linear guide rail to a preset position; and when the first fixed frame slides to the preset position, the separation interval between the first guide rail and the second guide rail is greater than the width of the sled.

[0012] Preferably, in the above-mentioned sled transfer mechanism, a second fixed frame is provided on the second bearing platform, the second guide rail is fixedly provided on the top of the second fixed frame, and the second bearing platform is also provided with a linear guide rail along the second direction, and the second fixed frame is slidably provided on the linear guide rail; the second fixed frame is symmetrically arranged with the first fixed frame and moves synchronously in opposite directions to run the same distance along the second direction in the same time period.

[0013] Preferably, in the above-mentioned slide transfer mechanism, the linear guide rails are arranged in pairs and in parallel at intervals.

[0014] Preferably, in the above-mentioned sled transfer mechanism, a plurality of counterweight blocks are fixedly arranged in the first fixed frame.

[0015] Preferably, in the above-mentioned slide transfer mechanism, the first direction is perpendicular to the second direction, and a plane passing through the first direction and the second direction is parallel to a plane of the roller bed guiding the slide.

[0016] Preferably, in the above-mentioned slide transfer mechanism, at least two automatic guided vehicles are provided to cyclically perform the on-line and off-line actions of the slide on the roller bed.

[0017] Preferably, in the above-mentioned sled transfer mechanism, the automatic guided vehicle is guided by paint or a ribbon pasted on the ground, and the paint or ribbon passes through the gap between the first carrying platform and the second carrying platform.

[0018] Preferably, in the above-mentioned slide transfer mechanism, the first fixed frame is driven by a cylinder to slide on the linear guide rail; the lifting mechanism on the automatic guided vehicle is driven by a hydraulic cylinder to drive the slide to rise and fall in the vertical direction.

[0019] As can be seen from the above technical solution, the sled transfer mechanism provided by the present invention configures the platform as a first load-bearing platform and a second load-bearing platform of a split structure, so that the automatic guided vehicle can enter through the first load-bearing platform and the second load-bearing platform arranged at intervals, and then the automatic guided vehicle drives the sled on the ground to the roller bed area. At the same time, at least one of the first guide rail and the second guide rail is slidingly arranged along the second direction to enable the first guide rail and the second guide rail to be separated. The separated first guide rail and the second guide rail can be used by the lifting mechanism on the automatic guided vehicle to lift and lower the sled, thereby achieving the sled's online and offline movement on the roller bed. The sled's online and offline movement on the roller bed is achieved by the automatic guided vehicle and the first guide rail and the second guide rail. The sled switches between the ground and the guide rail without the need for suspended movement, which reduces the difficulty of operation and the risk. At the same time, when the relevant structure fails, the operator can perform maintenance on the ground, thereby comprehensively reducing the production cost of the sled transfer mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only 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 A schematic diagram of the structure of the sliding transfer mechanism provided in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 Front view of

[0023] Figure 3 This is a structural diagram of the automatic guided vehicle before entering the roller bed station;

[0024] Figure 4 This is a schematic diagram of the automatic guided vehicle lifting skid structure at the roller bed station;

[0025] Figure 5 Schematic diagram of the movement route of the automatic guided vehicle.

[0026] Among them, 10-sled; 20-roller bed; 210-first guide rail; 220-second guide rail; 310-first load-bearing platform; 320-second load-bearing platform; 330-linear guide rail; 340-limiting block; 40-automatic guided vehicle; 510-first fixed frame; 520-second fixed frame; 530-counterweight block; DETAILED DESCRIPTION

[0027] The core of the utility model is to disclose a slide transfer mechanism to reduce the cost of the slide equipment production process and improve the convenience of using and maintaining the slide.

[0028] In order to help those skilled in the art better understand the present invention, the following describes embodiments of the present invention with reference to the accompanying drawings. Furthermore, the embodiments described below do not limit the scope of the invention as set forth in the claims. Furthermore, the entire contents of the embodiments described below are not necessarily required to serve as the solution of the invention as set forth in the claims.

[0029] like Figure 1-4 As shown, the skid transfer mechanism provided by the embodiment of the present invention mainly includes a skid 10, a roller bed 20 and an automatic guided vehicle 40, wherein the skid 10 is used to transport materials in the production process, and it is combined with the roller bed 20 to realize the three-dimensional transportation of components. The structure of the skid 10 is the same as the structure of the skid 10 used in the vehicle welding, painting, assembly and engine and gearbox assembly processes in the prior art, and will not be repeated here.

[0030] The roller bed 20 is used to carry the sled 10 on top and guide and transport the sled 10 via pulleys to meet the transportation requirements of parts. In some embodiments of the present invention, the roller bed 20 guides and transports the sled 10 along a first direction. The roller bed 20 specifically includes a first guide rail 210 and a second guide rail 220 arranged along the first direction. Here, the first guide rail 210 and the second guide rail 220 are arranged along the first direction specifically means that the first guide rail 210 and the second guide rail 220 are parallel to the first direction.

[0031] At the same time, the first guide rail 210 is fixed and supported by the first bearing platform 310, and correspondingly, the second guide rail 220 is fixed and supported by the second bearing platform 320. It is preferred that the setting plane of the first bearing platform 310 and the second bearing platform 320 is the ground rather than a high-rise platform to improve the convenience of its setting. At the same time, different from the existing technology, the first guide rail 210 and the second guide rail 220 are supported by two bearing platforms respectively, which can enable the first guide rail 210 and the second guide rail 220 to have different operating states, and the first bearing platform 310 and the second bearing platform 320 can be set at intervals to allow the relevant structures of the automatic guided vehicle 40 to pass through.

[0032] Specifically, one or both of the first guide rail 210 and the second guide rail 220 can be slidably arranged along the second direction, and it should be noted that the second direction is a direction intersecting with the first direction, and the second direction and the first direction are both located on a horizontal plane.

[0033] When the first guide rail 210 and the second guide rail 220 maintain a spliced ​​contact state, they can achieve smooth sliding guidance of the slide 10 through their top surfaces, and the sliding of the first guide rail 210 and the second guide rail 220 along the second direction can separate the first guide rail 210 and the second guide rail 220. When the separation interval between the two reaches a certain distance, the slide 10 can pass through the roller bed 20 in the vertical direction to guide the plane of the slide 10.

[0034] It should be further explained that the first guide rail 210 and the second guide rail 220 can be separated by sliding one of the first guide rail 210 and the second guide rail 220 along the second direction; and when both the first guide rail 210 and the second guide rail 220 are set to slide in the second direction, it is preferred that the movement process of the two is reverse movement, so as to be able to achieve separation at a faster speed and satisfy the movement of the slide 10 in the vertical direction through the roller bed 20 for guiding the plane of the slide 10.

[0035] On the basis of the above structure, the automatic guided vehicle 40, i.e., the AGV trolley, is used to carry the sled 10 and realize the transportation of the sled 10 through its own power and guide structure. It should be noted that the automatic guided vehicle 40 provided in the embodiment of the utility model is also provided with a lifting mechanism on the top. The lifting mechanism adjusts the height of the sled 10 in the vertical direction by lifting and lowering when the automatic guided vehicle 40 carries the sled 10. The width of the automatic guided vehicle 40 is smaller than the gap between the first load-bearing platform 310 and the second load-bearing platform 320, so that the automatic guided vehicle 40 can run through the gap between the first load-bearing platform 310 and the second load-bearing platform 320. Here, the width of the automatic guided vehicle 40 refers to the span in the vertical direction of the running direction of the automatic guided vehicle 40. The automatic guided vehicle 40 can run through the gap between the first load-bearing platform 310 and the second load-bearing platform 320 to drive the sled 10 to a position that overlaps with the roller bed 20 in the vertical direction.

[0036] At the same time, the maximum lifting height of the lifting mechanism is greater than the plane height of the guide slide 10 of the roller bed 20. On this basis, when it is necessary to place the slide 10 on the roller bed 20 for component carrying or transfer, it is only necessary to drive the automatic guided vehicle 40 carrying the slide 10 to run to the interval position between the first carrying platform 310 and the second carrying platform 320. At the same time, the first guide rail 210 and the second guide rail 220 are separated in the second direction, and the lifting mechanism on the automatic guided vehicle 40 is operated to lift the slide 10 in the vertical direction to a height higher than the plane of the roller bed 20 guiding the slide 10, and then drive the first guide rail 210 and the second guide rail 220 to contact and merge in the second direction, and lower the lifting mechanism to drive the slide 10 to descend in the vertical direction. Due to the limiting effect of the first guide rail 210 and the second guide rail 220, the slide 10 will be stably placed on the first guide rail 210 and the second guide rail 220, and the automatic guided vehicle 40 can drive away from the interval position between the first carrying platform 310 and the second carrying platform 320 after the lifting mechanism completes the descent, and the slide 10 completes the online action on the roller bed 20.

[0037] In the above structure, the rotation of the sled 10 does not need to be performed by hoisting the sled 10, then translating it in the air, and accurately placing it on the top of the roller bed 20 as in the prior art. Instead, the sled 10 is transported and lifted by an automatic guided vehicle 40 running on the ground. The structural requirements are simple, and no large-scale hoisting equipment is required. Instead, the sled 10 has a smaller space occupancy, which reduces the cost of the production process. In addition, the sled 10 is rarely suspended during the operation process, and the operation safety is high.

[0038] Similarly, when the sled 10 needs to be taken off the roller bed 20, the idle automatic guided vehicle 40 runs to the interval position between the first load platform 310 and the second load platform 320, and performs the lifting action of the lifting mechanism. The lifting mechanism contacts the sled 10 and continues to lift the sled 10 to separate it from the first guide rail 210 and the second guide rail 220. After the sled 10 is separated from the first guide rail 210 and the second guide rail 220, the first guide rail 210 and the second guide rail 220 are separated in the second direction to provide vertical space. The lifting mechanism descends to drive the sled 10 to descend in the vertical direction, and the automatic guided vehicle 40 further drives away from the interval position between the first load platform 310 and the second load platform 320 to take away the sled 10 and complete the offline action of the sled 10.

[0039] It should be noted that the on-line and off-line actions of the sled 10 on the roller bed 20 are achieved by the cooperation of the automatic guided vehicle 40 and the first guide rail 210 and the second guide rail 220. The sled 10 is switched between the ground and the guide rail without the need for suspended actions. The operation is easy and the risk is relatively small. At the same time, when the relevant structure fails, the operator can carry out maintenance on the ground, thereby comprehensively reducing the production cost of the sled transfer mechanism.

[0040] Furthermore, in some embodiments of the present invention, a first fixed frame 510 is provided on the first supporting platform 310. The first fixed frame 510 is a frame structure made of welded profiles for good stability, and the first guide rail 210 is fixedly mounted on the top of the first fixed frame 510. Correspondingly, a linear guide rail 330 is also provided along the second direction of the first supporting platform 310. The first fixed frame 510 is slidably mounted on the linear guide rail 330 to drive the movement of the first guide rail 210 in the second direction, thereby achieving separation of the first guide rail 210 from the second guide rail 220, meeting the requirements of the sled 10 for loading and unloading. It should be noted that the upper arrangement of the first fixed frame 510 provides a sufficient guide plane height for the first guide rail 210. At the same time, its simple and stable structure reduces material usage and serves as a transition structure to meet the sliding requirements of the first guide rail 210 in the second direction, avoiding a complex connection structure between the first guide rail 210 and the first supporting platform 310.

[0041] On the basis of the above embodiment, a limit block 340 is further fixedly provided on the first bearing platform 310. The limit block 340 is provided near the linear guide rail 330. Correspondingly, when the first fixed frame 510 slides to a preset position along the linear guide rail 330, it abuts against the limit block 340, so that the sliding position of the first fixed frame 510 is limited by the limit block 340, thereby limiting the position of the first guide rail 210 in the second direction. It should be noted that the first fixed frame 510 is limited by collision contact with the limit block 340. Preferably, a rubber pad or a sponge pad is provided on the contact surface between the first fixed frame 510 and the limit block 340 to prevent damage to the first fixed frame 510 and the limit block 340 due to rigid collision. It should also be noted that when the first fixed frame 510 slides to a preset position on the linear guide rail 330, the separation interval between the first guide rail 210 and the second guide rail 220 is greater than the width of the slide 10, so as to meet the movement requirements of the slide 10 passing through the first guide rail 210 and the second guide rail 220 and moving to a position higher than the guide plane.

[0042] It should be noted that the above embodiment describes the sliding of the first guide rail 210 in the second direction. In a preferred embodiment of the present invention, the second guide rail 220 is also a sliding structure arranged in the second direction. Specifically, a second fixed frame 520 is provided on the second supporting platform 320, and the second guide rail 220 is fixedly arranged on the top of the second fixed frame 520. The second supporting platform 320 is also provided with a linear guide rail 330 along the second direction, and the second fixed frame 520 is slidably arranged on the linear guide rail 330. In other words, the sliding arrangement structure of the second guide rail 220 on the second supporting platform 320 is the same as the sliding arrangement structure of the first guide rail 210 on the first supporting platform 310, and will not be repeated here. It should be noted that the second fixed frame 520 is symmetrically arranged with the first fixed frame 510 and moves synchronously in opposite directions. The symmetrical arrangement here specifically refers to that the second fixed frame 520 and the first fixed frame 510 are also symmetrically arranged with respect to the symmetry line of the first load-bearing platform 310 and the second load-bearing platform 320 in the interval area, so that the sled transfer mechanism has a regular symmetrical appearance structure, and the synchronous reverse movement specifically refers to that when the first guide rail 210 moves away from the second guide rail 220 in the positive direction of the second direction, the second guide rail 220 also moves away from the first guide rail 210 in the reverse direction of the second direction, that is, the first guide rail 210 and the second guide rail 220 start and stop at the same time, and move in opposite directions in the second direction, which makes the control of the first guide rail 210 and the second guide rail 220 more convenient and efficient, and the first guide rail 210 and the second guide rail 220 can run the same distance in the second direction in a single operation, that is, in the same time period.

[0043] The above-described operating structure enables a single guide rail to operate at half the target separation distance when achieving the same separation distance between the first guide rail 210 and the second guide rail 220, thereby reducing operating time and improving operating efficiency. It should be further noted that the second carrying platform 320 also has limit blocks 340 disposed around the periphery of the linear guide rail 330, which will not be further described here.

[0044] To enhance the sliding stability of the first fixed frame 510 on the first supporting platform 310, the linear guides 330 are preferably arranged in pairs, with the two linear guides 330 spaced apart and parallel to each other. The first fixed frame 510 has two sliding connection points on the first supporting platform 310 to reduce the risk of deflection during sliding. Furthermore, since the sled 10 and the first guide rail 210 are both relatively heavy components, a plurality of counterweights 530 are preferably fixed within the first fixed frame 510 to enhance its stability during sliding and supporting the first guide rail 210.

[0045] Furthermore, in some embodiments of the present invention, the first supporting platform 310 and the second supporting platform 320 are both fixedly arranged on a horizontal ground structure, and at the same time, the first direction and the second direction are both located in the same horizontal plane and arranged vertically. Compared with the first direction and the second direction at an acute angle, the vertical first direction and the second direction can make the first guide rail 210 and the second guide rail 220 require a smaller running distance when they are separated to provide a distance sufficient for the slide 10 to pass.

[0046] In addition, in order to ensure the smooth circulation operation of the sled transfer mechanism, at least two automatic guided vehicles 40 are set up, and the sled transfer mechanism is set at the beginning and end of the conveying path respectively to realize the loading and unloading of the sled 10.

[0047] Furthermore, when the sled 10 is being moved online, when one automatic guided vehicle 40 carries the sled 10 and is located between the first load platform 310 and the second load platform 320, the other automatic guided vehicle 40 carries the sled 10 and waits for operation; and when the sled 10 is being moved offline, when one automatic guided vehicle 40 is empty and is located between the first load platform 310 and the second load platform 320, the other automatic guided vehicle 40 is empty and waits for operation.

[0048] It should be noted that, if costs permit, more automatic guided vehicles 40 can be provided so that a single automatic guided vehicle 40 can operate safely at a lower speed while ensuring smooth circulation of the skid transfer mechanism.

[0049] It needs to be further explained that, Figure 5 As shown, it is preferred that the online running route and the offline running route of the sled 10 by the automatic guided vehicle 40 are simultaneously arranged around the roller bed 20 to form a closed loop route, and it is preferred that the online running route of the sled 10 by the automatic guided vehicle 40 and the offline running route of the sled 10 by the automatic guided vehicle 40 are symmetrically arranged with respect to the guide route of the sled 10 by the roller bed 20, so that the sled transfer mechanism has a more regular setting structure, and the two sides of the guide route of the sled 10 by the roller bed 20 can occupy the same distance and space, thereby reducing the difficulty of equipment setting.

[0050] Furthermore, taking a single automatic guided vehicle 40 as an example, the automatic guided vehicle 40 first carries the slider 10 and passes through the on-line station to place the slider 10 carried on its top on the roller bed 20, and then becomes an empty automatic guided vehicle 40 and moves around the roller bed 20 to travel to the off-line position of the slider 10. After the slider 10 runs to the off-line position on the roller bed 20, the automatic guided vehicle 40 receives and carries the slider 10 at the off-line position, and at the same time drives the slider 10 to move around the roller bed 20 to travel to the on-line position of the slider 10, and waits for the next on-line action of the slider 10 to complete the cycle action of the automatic guided vehicle 40.

[0051] Furthermore, in the sled transfer mechanism provided in the embodiment of the present invention, the automatic guided vehicle 40 can be operated on a preset path by means of magnetic stripe navigation or laser navigation, or the ground of the preset path can be painted with paint or pasted with ribbons, and a sensor can be set on the automatic guided vehicle 40 to read the color of the paint or ribbon, so as to detect the center position of the paint or ribbon and make the automatic guided vehicle 40 travel in a predetermined direction.

[0052] It should be noted that the paint or ribbon needs to pass through the gap between the first carrying platform 310 and the second carrying platform 320 to meet its positional operation requirements for the upper and lower positions of the sled 10 .

[0053] In addition, in the sled transfer mechanism provided in an embodiment of the present invention, the first fixed frame 510 is driven by a cylinder to slide on the linear guide rail 330; and the lifting mechanism on the automatic guided vehicle 40 is driven by a hydraulic cylinder to drive the sled 10 to rise and fall in the vertical direction.

[0054] It should be noted that the motion drive of each component is preferably achieved through remote electronic control to reduce the difficulty of adjustment.

[0055] In the specification and claims of this utility model, as well as in the accompanying drawings, the terms "first," "second," "left," and "right," etc., are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0056] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sled transfer mechanism, characterized in that: include: skids; a roller bed, guiding the slide along a first direction, the roller bed comprising a first guide rail and a second guide rail arranged along the first direction, the first guide rail and the second guide rail being supported by a first bearing platform and a second bearing platform respectively, the first bearing platform and the second bearing platform being spaced apart, and the first guide rail and / or the second guide rail being slidably arranged along a second direction, the second direction intersecting the first direction; An automatic guided vehicle is used to carry the sled and is provided with a lifting mechanism on the top. The width of the automatic guided vehicle is smaller than the distance between the first load-bearing platform and the second load-bearing platform, and the maximum lifting height of the lifting mechanism is greater than the plane height of the roller bed guiding the sled.

2. The sled transfer mechanism according to claim 1, wherein: A first fixed frame is provided on the first bearing platform, the first guide rail is fixedly provided on the top of the first fixed frame, and a linear guide rail is provided on the first bearing platform along the second direction, and the first fixed frame is slidably provided on the linear guide rail.

3. The sled transfer mechanism according to claim 2, wherein: A limit block is fixedly provided on the first bearing platform, and the first fixed frame abuts against the limit block when sliding along the linear guide rail to a preset position; and when the first fixed frame slides to the preset position, the separation interval between the first guide rail and the second guide rail is greater than the width of the slide.

4. The sled transfer mechanism according to claim 3, wherein: A second fixed frame is provided on the second supporting platform, and the second guide rail is fixedly provided on the top of the second fixed frame. The second supporting platform is also provided with a linear guide rail along the second direction, and the second fixed frame is slidably provided on the linear guide rail; the second fixed frame is symmetrically arranged with the first fixed frame and moves synchronously in opposite directions to run the same distance along the second direction in the same time period.

5. The sled transfer mechanism according to claim 2, wherein: The linear guide rails are arranged in pairs and spaced apart in parallel.

6. The sled transfer mechanism according to claim 2, wherein: A plurality of counterweight blocks are fixedly arranged in the first fixing frame.

7. The sled transfer mechanism according to claim 1, wherein: The first direction is perpendicular to the second direction, and a plane passing through the first direction and the second direction is parallel to a plane of the roller bed that guides the slide.

8. The sled transfer mechanism according to claim 1, wherein: At least two automatic guided vehicles are provided to cyclically execute the on-line and off-line actions of the slide on the roller bed.

9. The sled transfer mechanism according to claim 1, wherein: The automatic guided vehicle is guided by a paint or a ribbon pasted on the ground, and the paint or ribbon passes through the gap between the first carrying platform and the second carrying platform.

10. The sled transfer mechanism according to claim 2, wherein: The first fixing frame is driven by a cylinder to slide on the linear guide rail; the lifting mechanism on the automatic guided vehicle is driven by a hydraulic cylinder to drive the slide to rise and fall in the vertical direction.

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