Conveying device

Abstract

The utility model provides a conveying device. The conveying device comprises a lifting mechanism, a conveying track driven by the lifting mechanism to ascend and descend, and a skid arranged on the conveying track. The lifting mechanism comprises a plurality of lifting assemblies arranged at intervals, and each lifting assembly comprises a lifting frame, a lifting table arranged on the lifting frame in a sliding mode and a first driving assembly driving the lifting table to slide in a lifting mode through a transmission part. The conveying track is arranged between the lifting tables, and the skid is provided with a bearing part used for carrying a vehicle frame. The conveying device comprises the lifting mechanism, the conveying track and the skid, the height of the conveying track is adjusted through the lifting mechanism, the vehicle frame is conveyed through the skid on the conveying track, during overhauling, workers can conduct overhauling without climbing high, overhauling is more convenient, and risks of the workers are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frame production, in particular to a conveying device. Background Art

[0002] Frame conveying is a logistics form that realizes the transportation of workpieces between workstations in the frame welding production line. After the frame completes welding at one position at the previous workstation, it needs to be transported to the next workstation to weld at another position, realizing assembly line operation and improving production efficiency.

[0003] The existing scheme generally adopts the method of aerial transportation, which uses an aerial walking hoist to transfer the frame to realize the transportation of the frame between workstations. When the welding at the previous workstation is completed, the hoist is lowered, and the gripper on the hoist grabs the frame, and the gripper drives the frame to rise above the workstation. The walking mechanism on the hoist drives the frame to move above the next workstation, and the hoist is lowered to place the frame on the fixture of the next workstation for welding.

[0004] However, aerial transportation takes up a large space and requires the manufacture of a sling steel structure with a complex structure. Since the main structure of the equipment is above the fixture (usually about 4 meters from the ground), when maintenance is required, especially after damage occurs, workers need to climb high or use lifting equipment to reach the maintenance point, which is not only inconvenient for maintenance, but also increases the safety risk of workers due to high-altitude operations. Utility Model Content

[0005] In view of this, the present invention aims to provide a conveying device with better maintenance convenience and safety.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A conveying device includes a lifting mechanism, a conveying track driven to rise and fall by the lifting mechanism, and a slide arranged on the conveying track; the lifting mechanism includes a plurality of lifting components arranged at intervals, each of the lifting components includes a lifting frame, a lifting platform slidably arranged on the lifting frame, and a first drive component that drives the lifting platform to rise and fall and slide through a transmission part; the conveying track is arranged between each of the lifting platforms, and the slide has a bearing part for supporting a vehicle frame.

[0008] Furthermore, the lifting frames in each of the lifting assemblies include a plurality of frame bodies arranged at intervals, and a slide rail assembly provided on each of the frame bodies. Each of the slide rail assemblies is provided with a sliding seat, and the lifting platform is connected to each of the sliding seats via a connecting beam.

[0009] Furthermore, each of the slide rail assemblies includes a slide rail provided on the corresponding frame; and / or, the transmission part includes a first pulley provided at the bottom of each frame, a second pulley provided at the top of each frame, and a transmission belt provided between the first pulley and the second pulley on the same frame, the transmission belt is connected to the sliding seat on the same frame, and the first pulley is transmission-connected to the first drive assembly.

[0010] Furthermore, the conveying track includes a track body, a sliding groove and a second driving component provided on the track body, and the second driving component is used to drive the slide to move along the sliding groove.

[0011] Furthermore, the second driving assembly includes two driving parts arranged on the track body, the two driving parts are arranged on both sides of the sliding groove, and the driving end of each driving part is provided with a driving wheel, and the slide is arranged between the driving wheels on both sides.

[0012] Furthermore, each of the driving parts includes a mounting seat rotatably arranged on the track body, a driving motor arranged on the mounting seat, and an elastic member arranged between the mounting seat and the track body, and the driving wheel is connected to the driving shaft of the driving motor.

[0013] Furthermore, the second driving assembly is provided at both ends of the track body; and / or, buffer components for buffering vibration are provided at both ends of the slide.

[0014] Furthermore, a positioning mechanism is provided between the track body and the slide; the positioning mechanism includes a positioning piece provided on the slide, and a clamping assembly provided on the track body, and the clamping assembly has a clamping unit for clamping the positioning piece.

[0015] Furthermore, the clamping unit includes a clamping member rotatably provided on the rail body, and a clamping cylinder for driving the clamping member to rotate.

[0016] Furthermore, a structural reinforcement is provided at the bottom of the track body; and / or a supporting roller is provided on the bottom wall of the sliding groove, and a guide roller is provided on the side wall of the sliding groove.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The conveying device described in the present invention can directly install the lifting mechanism on the base of the clamp, so that the conveying track and the slide are low to the ground, and there is no need to make a sling steel structure. The structure is simple, maintenance is convenient, and maintenance safety is high. At the same time, multiple lifting components are provided, and each lifting component is mainly composed of a lifting frame, a lifting platform, a first drive component and a transmission part. It is not only beneficial to improve the lifting stability of the conveying track, but also beneficial to reduce equipment costs, and can have higher practicality.

[0019] Secondly, the lifting platform is connected to each sliding seat through a connecting beam. The load on the lifting platform will be evenly distributed on all slide rail assemblies, improving the stability and reliability of the lifting assembly. The sliding seat on the slide rail assembly can ensure that the lifting platform moves smoothly along the predetermined track and accurately controls the height of the frame, so that the frame can be placed in the same position before each welding. The welder or welding robot can accurately reach the position where welding is required, improving the welding quality and efficiency.

[0020] In addition, the slide rail provides a stable guide, making the movement of the lifting platform smoother. The first pulley is driven by the first drive assembly, and the speed and position of the transmission belt can be precisely adjusted through the first drive assembly, thereby accurately controlling the height of the lifting platform. The belt drive structure is compact and takes up little space. When the carriage is too heavy and the sliding seat is overloaded, the transmission belt will first slip, providing a certain degree of overload protection and increasing the safety of the transmission unit. Moreover, the sliding groove provides a clear guide path for the sled, reducing the possibility of deviation from the track, so that the sled can remain stable when moving within the sliding groove, reducing deviation and shaking. The movement of the sled is controlled by the second drive assembly, which can achieve precise positioning, facilitating the process of accurately positioning the carriage on the sled to a specific position.

[0021] The two drive wheels, located on either side of the sliding groove, provide symmetrical driving force to the sled, making the sled more balanced during movement and preventing the sled from tilting sideways or deviating from the track. The two drive wheels act together on the sled, providing greater stability, allowing the sled to maintain smooth movement even under heavy loads and less prone to shaking. Furthermore, the presence of the elastic member allows the drive wheel to abut against the sled surface, creating sufficient friction between them. After long-term hard contact between the drive wheel and the sled causes wear, the elastic member allows the drive wheel to abut against the sled surface. When the drive wheel rotates, it can consistently drive the sled, extending the service life of the drive wheel and sled.

[0022] In addition, a second drive assembly is installed at each end of the track, enabling bidirectional drive. This allows the sled to move back and forth on the track without relying on a single-directional drive source, increasing the flexibility and practicality of the conveyor track. Furthermore, if the second drive assembly at one end fails, the second drive assembly at the other end can continue to operate, improving reliability. Furthermore, the design of the positioning member and clamping assembly ensures the precise positioning of the sled at a specific location. The clamping unit securely clamps the positioning member, keeping the sled stationary at the desired location, facilitating the positioning of the sled on the carriage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic structural diagram of the conveying device according to an embodiment of the present utility model;

[0025] Figure 2 This is a structural diagram of the lifting assembly according to an embodiment of the present utility model;

[0026] Figure 3 This is a structural diagram of the lifting frame according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic structural diagram of the conveying track according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic structural diagram of the track body according to an embodiment of the present utility model;

[0029] Figure 6 and Figure 7 This is a structural diagram of the second drive assembly according to an embodiment of the present utility model;

[0030] Figure 8 This is a schematic structural diagram of the skid according to an embodiment of the present utility model;

[0031] Figure 9 This is a structural diagram of the positioning mechanism according to an embodiment of the present utility model;

[0032] Description of reference numerals:

[0033] 1. Conveyor track; 101. Track body; 1011. Channel steel; 1012. Second connecting plate; 1013. Structural reinforcement; 1014. First connecting plate;

[0034] 102, sliding groove; 103, driving part; 1031, driving wheel; 1032, mounting seat; 1033, driving motor; 1034, elastic member;

[0035] 2. Lifting assembly; 201. Lifting frame; 2011. Frame; 2012. Slide rail assembly; 2013. Sliding seat; 2014. Connecting beam;

[0036] 202, lifting platform; 203, first drive assembly; 204, transmission unit; 2041, first pulley; 2042, second pulley; 2043, transmission belt;

[0037] 205, first transmission shaft; 206, coupling; 207, connecting shaft;

[0038] 3. Sled; 301. Rectangular tube; 302. Front support unit; 303. Rear support unit; 304. Protective cover; 305. Buffer component;

[0039] 4. Positioning mechanism; 401. Positioning member; 402. Clamping unit; 4021. Clamping member; 4022. Clamping cylinder;

[0040] 5. Support roller; 6. Guide roller;

[0041] 7. First pin; 8. First bolt. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0043] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0044] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0045] Furthermore, in the description of this utility model, unless otherwise expressly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0046] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0047] Example 1

[0048] This embodiment relates to a conveying device, which can solve the problem of inconvenient maintenance of conveying hangers in traditional technologies and is more suitable for conveying operations in a frame welding production line.

[0049] In terms of overall structure, Figures 1 to 9 As shown, this embodiment includes a lifting mechanism, a conveying track 1 driven to rise and fall by the lifting mechanism, and a sled 3 provided on the conveying track 1. The lifting mechanism includes a plurality of lifting components 2 arranged at intervals, each lifting component 2 includes a lifting frame 201, a lifting platform 202 slidingly provided on the lifting frame 201, and a first driving component 203 that drives the lifting platform 202 to rise and fall and slide through a transmission part 204. The conveying track 1 is arranged between each lifting platform 202, and the sled 3 has a bearing part for supporting a vehicle frame.

[0050] At this time, as set up above, the conveying device can be installed on a base equipped with a clamp. It has a simple structure and does not require the production of a sling steel structure. In addition, each component is low to the ground, and the conveying device can be inspected and repaired without the need for staff to climb high or use lifting equipment. Inspection and repair are relatively convenient, and the safety risk of the staff is reduced. In addition, multiple lifting components 2 are set up, and each lifting component 2 is mainly composed of a lifting frame 201, a lifting platform 202, a first drive component 203 and a transmission part 204. It is not only beneficial to improve the lifting stability of the conveying track 1, but also beneficial to reduce equipment costs and has higher practicality.

[0051] It can be understood that in this embodiment, through the cooperation of the first drive component 203 and the transmission part 204, precise control of the lifting platform 202 can be achieved, thereby ensuring that the height of the conveying track 1 can be accurately adjusted, and the lifting platform 202 can remain stable during the lifting process, reducing shaking and deviation, ensuring that the frame on the sled 3 can move smoothly between different heights, and the multiple lifting components 2 arranged at intervals can provide multiple support points, making the conveying track 1 more stable and reliable during the lifting process. Multiple lifting platforms 202 can evenly distribute the weight of the frame, reduce the risk of single-point overload, and extend the service life of the conveying device. Each lifting component 2, conveying track 1 and sled 3 can be independently maintained or replaced for easy maintenance.

[0052] Based on the above overall introduction, in detail, in this embodiment, when it is implemented, combined with Figure 1 As shown in FIG, the lifting direction of the conveying rail 1 is to move along the height direction of the conveying device, and the moving direction of the sled 3 is to move along the length direction of the conveying device.

[0053] The main body of the sled 3 is preferably a rectangular tube 301, which is also provided with a protective cover 304 for protecting the sled 3. Furthermore, the load-bearing portion preferably includes a front support unit 302 and a rear support unit 303, which are disposed on the rectangular tube 301 and arranged in sequence along the length of the rectangular tube 301. The front support unit 302 is responsible for positioning and supporting the front end of the vehicle frame, while the rear support unit 303 is responsible for supporting and positioning the rear end of the vehicle frame. Of course, any structural components not described in this embodiment of the sled 3 can be referred to as the various structures of conveyor sleds well known to those skilled in the art, and will not be further described here.

[0054] In this embodiment, as a preferred implementation form, see Figure 2 As shown, the lifting frame 201 in each lifting assembly 2 includes a plurality of frame bodies 2011 arranged at intervals, and a slide rail assembly 2012 provided on each frame body 2011, each slide rail assembly 2012 is provided with a sliding seat 2013, and the lifting platform 202 is connected to each sliding seat 2013 through a connecting beam 2014.

[0055] Since the lifting platform 202 is connected to each sliding seat 2013 through the connecting beam 2014, the load on the lifting platform 202 will be evenly distributed on all the slide rail assemblies 2012, thereby improving the stability and reliability of the lifting assembly 2, and the sliding seat 2013 on the slide rail assembly 2012 can ensure that the lifting platform 202 moves smoothly along the predetermined track and accurately controls the height of the frame, so that the frame can be placed in the same position before each welding, and the welder or welding robot can accurately reach the position where welding is required, thereby improving the welding quality and efficiency.

[0056] Moreover, in this embodiment, as a preferred implementation form, see Figure 3 As shown, each slide rail assembly 2012 includes a slide rail arranged on the corresponding frame 2011, and the transmission part 204 includes a first pulley 2041 arranged at the bottom of each frame 2011, a second pulley 2042 arranged at the top of each frame 2011, and a transmission belt 2043 arranged between the first pulley 2041 and the second pulley 2042 on the same frame 2011, the transmission belt 2043 is connected to the sliding seat 2013 on the same frame 2011, and the first pulley 2041 is transmission-connected to the first drive assembly 203.

[0057] Specifically, slide rails are provided on both sides of each frame 2011, and the sliding seat 2013 is composed of a first plate body and two second plates on both sides of the first plate body. The two second plates are respectively slidably set on the two slide rails, and the first plate body is connected to the transmission belt 2043. In addition, the first pulley 2041 is provided on the first transmission shaft 205, and the two opposite first transmission shafts 205 are respectively connected to the connecting shaft 207 through two couplings 206, and the driving end of the first drive component 203 is connected to one of the first transmission shafts 205. The first drive component 203 can simultaneously drive multiple first pulleys 2041 to rotate synchronously, thereby making the sliding seat 2013 rise and fall synchronously, so that the connecting beam 2014 can rise and fall more stably.

[0058] It can be understood that the slide rail provides a stable guiding effect, making the movement of the lifting platform 202 smoother. The first pulley 2041 is driven by the first drive component 203, and the speed and position of the transmission belt 2043 can be accurately adjusted by the first drive component 203, thereby accurately controlling the height of the lifting platform 202. In addition, the belt drive structure is compact and occupies a small space. When the frame is too heavy and the sliding seat 2013 is overloaded, the transmission belt 2043 will first slip, providing overload protection to a certain extent, thereby increasing the safety of the transmission part 204.

[0059] In addition, the transmission belt 2043 can also be a synchronous belt. The first pulley 2041 and the second pulley 2042 connected to the transmission belt 2043 are both synchronous pulleys. While eliminating slippage, they can provide precise position control. The synchronous belt has high transmission efficiency and low loss, which can reduce energy loss, thereby reducing energy consumption and having a long service life.

[0060] In the specific implementation, in this embodiment, as a preferred implementation form, see Figure 4As shown, the conveyor track 1 includes a track body 101, a sliding groove 102 provided on the track body 101, and a second drive assembly, which is used to drive the sled 3 to move along the sliding groove 102. The sliding groove 102 provides a clear guide path for the sled 3, reducing the possibility of deviation from the track. When the sled 3 moves in the sliding groove 102, it can remain stable and reduce deviation and shaking. In addition, the movement of the sled 3 is controlled by the second drive assembly, which can achieve precise positioning, facilitating the process of accurately positioning the frame on the sled 3 to a specific position.

[0061] Furthermore, in this embodiment, as a preferred implementation form, see Figure 4 and Figure 6 As shown, the second driving assembly includes two driving parts 103 arranged on the track body 101, and the two driving parts 103 are arranged on both sides of the sliding groove 102, and the driving end of each driving part 103 is provided with a driving wheel 1031, and the slide 3 is arranged between the driving wheels 1031 on both sides.

[0062] The two driving wheels 1031 are respectively located on both sides of the sliding groove 102, which can provide symmetrical driving force to the slide 3, making the slide 3 more balanced during movement, preventing the slide 3 from tilting sideways or deviating from the track during movement, and the two driving wheels 1031 act together on the slide 3 to provide stronger stability. The slide 3 can maintain smooth movement even under heavy loads and is not prone to shaking.

[0063] In addition, in this embodiment, as a preferred implementation form, see Figure 6 and Figure 7 As shown, each driving part 103 includes a mounting seat 1032 rotatably arranged on the track body 101, a driving motor 1033 arranged on the mounting seat 1032, and an elastic member 1034 arranged between the mounting seat 1032 and the track body 101, and the driving wheel 1031 is connected to the driving shaft of the driving motor 1033.

[0064] Specifically, a first pin shaft 7 is arranged on the track body 101 along the height direction of the conveying device, and the mounting seat 1032 is rotatably connected to the first pin shaft 7, and a first bolt 8 is provided on the track body 101 along the width direction of the conveying device, and an avoidance hole corresponding to the first bolt 8 is provided on the mounting seat 1032. The elastic member 1034 is provided on the first bolt 8, and the first end of the elastic member 1034 abuts the end head of the first bolt 8, and the second end abuts the mounting seat 1032. Under the action of the elastic member 1034, the mounting seat 1032 rotates toward the track body 101 with the first pin shaft 7 as the center.

[0065] Among them, the presence of the elastic member 1034 enables the driving wheel 1031 to press against the surface of the sled 3, and there is sufficient friction between the driving wheel 1031 and the sled 3. After the driving wheel 1031 and the sled 3 are worn due to long-term hard contact, under the action of the elastic member 1034, the driving wheel 1031 can press against the surface of the sled 3. When the driving wheel 1031 rotates, it can always drive the sled 3 to move, thereby extending the service life of the driving wheel 1031 and the sled 3.

[0066] In addition, the elastic member 1034 can also enable the driving wheel 1031 to automatically adjust the pressure according to the specific conditions of the surface of the slide 3. Even if the surface of the slide 3 is slightly uneven or slightly deformed, the elastic member 1034 can ensure that the driving wheel 1031 always maintains good contact with the surface of the slide 3, and has strong adaptability.

[0067] It is worth mentioning that, in this embodiment, as a preferred implementation form, see Figure 4 and Figure 8 As shown, both ends of the track body 101 are provided with a second driving assembly, and both ends of the slide 3 are provided with a buffer component 305 for buffering vibration.

[0068] Specifically, a second drive assembly is provided at both ends of the track, which can realize bidirectional drive, so that the slide 3 can move back and forth on the track without relying on a single-direction drive source, thereby increasing the flexibility and practicality of the conveying track 1, and when the second drive assembly at one end fails, the second drive assembly at the other end can continue to work, thereby improving reliability.

[0069] Secondly, the buffer component 305 can absorb the impact force generated when the slide 3 starts, stops or contacts other objects. This absorption effect reduces the impact on the slide 3 itself and the track body 101, protecting the conveying device from damage. The buffer component 305 is a rubber block.

[0070] In addition, in this embodiment, as a preferred implementation form, see Figure 2 and Figure 3 As shown, a positioning mechanism 4 is provided between the rail body 101 and the slide 3 , and the positioning mechanism 4 includes a positioning member 401 provided on the slide 3 , and a clamping assembly provided on the rail body 101 , and the clamping assembly has a clamping unit 402 for clamping the positioning member 401 .

[0071] The design of the positioning member 401 and the clamping assembly can ensure the precise positioning of the slide 3 at a specific position. The positioning member 401 is firmly clamped by the clamping unit 402, so that the slide 3 remains stationary at the position where it needs to stay, making it easy to determine the position of the slide 3 on the frame.

[0072] In this embodiment, as a preferred implementation form, see Figure 9As shown, the clamping unit 402 includes a clamping member 4021 rotatably provided on the rail body 101 , and a clamping cylinder 4022 for driving the clamping member 4021 to rotate.

[0073] Here, when the clamping unit 402 is in the initial state, the clamping part 4021 is in the open state, that is, it does not contact the positioning part 401 on the slide 3. When the slide 3 reaches the specified position, the clamping cylinder 4022 drives the clamping part 4021 to rotate. During the rotation of the clamping part 4021, it gradually approaches the positioning part 401 on the slide and finally clamps it, completing the positioning of the slide 3 and its upper frame.

[0074] It can be understood that the clamping cylinder 4022 quickly drives the clamping member 4021 to tighten or release the positioning member 401, thereby reducing the positioning time and improving the processing efficiency of the frame. In addition, the clamping member 4021 can effectively prevent the slide 3 from derailing when it is impacted or subjected to external force, thereby increasing safety.

[0075] Furthermore, in this embodiment, as a preferred implementation form, see Figure 5 As shown, a structural reinforcement 1013 is provided at the bottom of the track body 101 , a supporting roller 5 is provided on the bottom wall of the sliding groove 102 , and a guide roller 6 is provided on the side wall of the sliding groove 102 .

[0076] Specifically, the track body 101 mainly includes two channel steels 1011 and a second connecting plate 1012, wherein the openings of the two U-shaped channel steels 1011 are arranged opposite to each other, and a structural reinforcement 1013 is provided at the lower end of each U-shaped channel steel 1011. The structural reinforcement 1013 is an angle steel. The channel steel 1011 is connected to the outer side of the angle steel through a first connecting plate 1014, and the two opposite angle steels are connected through a second connecting plate 1012. The two channel steels 1011 and the second connecting plate 1012 form a sliding groove 102.

[0077] Among them, the main function of the angle steel is to reinforce the structure of the channel steel 1011, enhance the overall rigidity and stability, and in order to facilitate the sliding of the slide 3 in the sliding groove 102, a plurality of support rollers 5 can also be arranged on the upper surface of the second connecting plate 1012 along the length direction of the track body 101 at intervals. The outer circumferential surface of the support roller 5 abuts against the lower surface of the slide 3. When the slide 3 moves along the track body 101, the support roller 5 rotates to reduce the friction between the slide 3 and the bottom wall of the sliding groove 102. A plurality of guide rollers 6 are arranged on the two U-shaped grooves along the length direction of the track body 101 at intervals. The two opposite guide rollers 6 abut against the two side surfaces of the slide 3 for guiding the movement of the slide 3.

[0078] In addition, the arrangement of the support roller 5 and the guide roller 6 can reduce the friction between the slide 3 and the track body 101, thereby extending the service life of the track body 101 and the slide 3. The channel steel 1011 and the angle steel are both common building materials with low processing costs.

[0079] In order to better control the position where the sled 3 stops on the track body 101, a deceleration sensing block and a stop detection block can be set in sequence on the first side of the sled 3 along its travel direction. Conversely, a deceleration proximity switch and a stop limit switch are set in sequence on the corresponding first side of the track body 101. When the sled 3 is conveying the frame, the deceleration proximity switch first detects the deceleration sensing block, and at this time controls the drive motor 1033 to decelerate, and then the decelerated drive wheel 1031 drives the sled 3 to decelerate. Afterwards, when the stop limit switch hits the stop detection block, the drive motor 1033 stops driving, and then the sled 3 stops moving.

[0080] In addition, the second side of the sled 3 is also equipped with a deceleration sensor block and a stop detection block, and the second side of the track body 101 is also equipped with a deceleration proximity switch and a stop detection block. When the sled 3 returns, the deceleration sensor block, stop detection block, deceleration proximity switch, and stop detection block on the second side of the sled 3 and track body 101 cooperate to ensure that the sled 3 returns to its fixed position. The principle is the same as described above and will not be repeated here. By precisely controlling the sled 3 to stop at a fixed position, it is easier to place a frame on the sled 3, reducing waiting time for frame retrieval and placement, and improving the continuity and smoothness of the production line.

[0081] The conveying device of this embodiment can solve the problem of inconvenient maintenance of conveying slings in traditional technologies. It has a simple structure, convenient maintenance, and high maintenance safety. It is more suitable for conveying operations in frame welding production lines. At the same time, it is also beneficial to reduce equipment costs and has higher practicality.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A conveying device, characterized in that: It comprises a lifting mechanism, a conveying track (1) driven to rise and fall by the lifting mechanism, and a sliding sled (3) arranged on the conveying track (1); The lifting mechanism comprises a plurality of lifting assemblies (2) arranged at intervals, each of the lifting assemblies (2) comprising a lifting frame (201), a lifting platform (202) slidably arranged on the lifting frame (201), and a first driving assembly (203) for driving the lifting platform (202) to move up and down and slide via a transmission part (204); The conveying track (1) is arranged between each of the lifting platforms (202), and the slide (3) has a bearing portion for supporting a vehicle frame.

2. The conveying device according to claim 1, characterized in that: The lifting frame (201) in each lifting assembly (2) comprises a plurality of frame bodies (2011) arranged at intervals, and a slide rail assembly (2012) provided on each frame body (2011); each slide rail assembly (2012) is provided with a sliding seat (2013); and the lifting platform (202) is connected to each sliding seat (2013) via a connecting beam (2014).

3. The conveying device according to claim 2, characterized in that: Each of the slide rail assemblies (2012) comprises a slide rail provided on the corresponding frame (2011); and / or, The transmission part (204) includes a first pulley (2041) provided at the bottom of each frame (2011), a second pulley (2042) provided at the top of each frame (2011), and a transmission belt (2043) provided between the first pulley (2041) and the second pulley (2042) on the same frame (2011), the transmission belt (2043) is connected to the sliding seat (2013) on the same frame (2011), and the first pulley (2041) is transmission-connected to the first driving component (203).

4. The conveying device according to any one of claims 1 to 3, characterized in that: The conveying track (1) comprises a track body (101), a sliding groove (102) and a second driving component provided on the track body (101), wherein the second driving component is used for driving the slide (3) to move along the sliding groove (102).

5. The conveying device according to claim 4, characterized in that: The second driving assembly comprises two driving parts (103) arranged on the track body (101), the two driving parts (103) being arranged on both sides of the sliding groove (102), and the driving end of each driving part (103) being provided with a driving wheel (1031), and the sliding sled (3) being arranged between the driving wheels (1031) on both sides.

6. The conveying device according to claim 5, characterized in that: Each of the driving parts (103) comprises a mounting seat (1032) rotatably arranged on the track body (101), a driving motor (1033) arranged on the mounting seat (1032), and an elastic member (1034) arranged between the mounting seat (1032) and the track body (101); the driving wheel (1031) is connected to the driving shaft of the driving motor (1033).

7. The conveying device according to claim 5, characterized in that: The second driving assembly is provided at both ends of the track body (101); and / or, Buffer components (305) for buffering vibration are respectively provided at both ends of the slide (3).

8. The conveying device according to claim 4, characterized in that: A positioning mechanism (4) is provided between the track body (101) and the slide (3); The positioning mechanism (4) comprises a positioning member (401) provided on the sled (3), and a clamping assembly provided on the track body (101), wherein the clamping assembly has a clamping unit (402) for clamping the positioning member (401).

9. The conveying device according to claim 8, characterized in that: The clamping unit (402) includes a clamping member (4021) rotatably arranged on the track body (101), and a clamping cylinder (4022) for driving the clamping member (4021) to rotate.

10. The conveying device according to claim 4, characterized in that: The bottom of the track body (101) is provided with a structural reinforcement (1013); and / or, A supporting roller (5) is provided on the bottom wall of the sliding groove (102), and a guide roller (6) is provided on the side wall of the sliding groove (102).

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