Synchronous trolley

Abstract

The present invention discloses a synchronous trolley, comprising: an operating frame, the operating frame including a jig placement frame, there are various types of jigs, the jig placement frame is used to place various types of jigs; a walking platform, the jig placement frame is installed on the walking platform, the walking platform is provided with a synchronization mechanism, the synchronization mechanism includes a driving member and a swing arm, the driving member is used to drive the swing arm to abut or disengage with an external automobile plate chain, so as to correspondingly make the walking platform and the external automobile plate chain move synchronously or disengage from each other. The synchronous trolley can complete a continuous cycle operation process during the automobile assembly process, speed up the production pace, and improve production efficiency. The design of the synchronous trolley is convenient for operators to use and operate, improves operational convenience, and reduces labor intensity. In addition, during the use of the synchronous trolley, the operator does not need to carry various types of jigs back and forth, which reduces the number of repeated labor times, improves production efficiency, and reduces manual labor intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of trolleys, and in particular to an operating frame and a synchronous trolley. Background Art

[0002] During the automobile assembly process, time is wasted in the installation of the four doors. All four doors are installed in the same manner. For example, when installing the right rear door, operators must constantly walk back and forth and carry jigs. This walking cycle takes 18 seconds per door, with seven steps. This wastes significant time and reduces production efficiency. Furthermore, during this process, operators must carry the jigs, which weigh 7.5 kg, to the vehicle body. This heavy jig is carried twice for each vehicle, creating a high level of labor intensity. This constant heavy lifting can cause physical damage, leading to musculoskeletal problems and negative health outcomes. This work poses certain operational risks and reduces safety. Furthermore, different models require different jig types, requiring operators to carry different jigs back and forth for each model. This repetitive work not only reduces production efficiency but also increases labor intensity. Summary of the Invention

[0003] The main purpose of the present invention is to provide a synchronous trolley, aiming to solve the problems of low production efficiency and high labor intensity in the existing automobile assembly process.

[0004] To achieve the above object, the present invention provides a synchronous trolley, which comprises:

[0005] An operating frame, comprising a fixture placement frame, wherein there are various types of fixtures, and the fixture placement frame is used to place various types of fixtures;

[0006] A walking platform, the fixture placement frame is installed on the walking platform, and the walking platform is provided with a synchronization mechanism, the synchronization mechanism includes a driving member and a swing arm, the driving member is used to drive the swing arm to abut or disengage with the external automobile plate chain, so as to make the walking platform and the external automobile plate chain move synchronously or disengage from each other.

[0007] Preferably, the walking platform is further provided with a first travel switch, the first travel switch is spaced apart from the swing arm, the first travel switch is electrically connected to the driving member, and the first travel switch is used to trigger the driving member to start.

[0008] Preferably, the driving member is a driving cylinder, the output shaft of the driving cylinder is connected to the connecting end of the swing arm, the free end of the swing arm is away from the connecting end of the swing arm, and the synchronization mechanism also includes a connecting plate, one end of the connecting plate is hinged to the cylinder body of the driving cylinder, and the other end of the connecting plate is hinged to a position on the swing arm close to its connecting end; the driving cylinder is used to drive the swing arm to swing toward or away from the external automobile plate chain, so as to correspondingly make the free end of the swing arm abut against or disengage from the external automobile plate chain.

[0009] Preferably, the synchronous trolley further comprises a guide mechanism, which comprises a mounting seat and a sheave, wherein the sheave is rotatably mounted on the mounting seat via a transversely arranged first rotating shaft, and the sheave is used for rolling contact with the external guide rail.

[0010] Preferably, the guide mechanism includes a transition plate and two oppositely arranged rollers, the transition plate is installed at the bottom of the mounting seat, and the transition plate is provided with an avoidance hole for the groove wheel to pass through, and a guide groove is formed between the two rollers to cooperate with the external guide rail, and the roller is rotatably installed at the bottom of the transition plate through a vertically arranged second rotating shaft, and the roller is used for rolling contact with the external guide rail.

[0011] Preferably, the walking platform includes a walking frame and a driving mechanism, the driving mechanism and the operating frame are both mounted on the walking frame, the walking frame is further mounted with walking wheels, and the driving mechanism is used to drive the walking frame to move via the walking wheels.

[0012] Preferably, a second travel switch and a third travel switch are also provided on the walking frame, and the second travel switch and the third travel switch are respectively arranged on both sides of the first travel switch. The second travel switch and the third travel switch are both electrically connected to the driving mechanism and are both used to trigger the driving mechanism so that the driving mechanism brakes the walking frame.

[0013] Preferably, the traveling frame includes a bottom frame and a vertical frame installed on the bottom frame, and the driving mechanism, the synchronization mechanism, the operating frame and the traveling wheel are all installed on the bottom frame; the vertical frame is installed with a wrench placement rack and a fourth stroke switch, the wrench placement rack is used to place a wrench, the fourth stroke switch is close to the wrench placement rack, and the fourth stroke switch is used to trigger the driving mechanism when it detects that a wrench is placed on the wrench placement rack, so that the driving mechanism brakes the traveling frame.

[0014] Preferably, the vertical frame is also equipped with three control buttons, one of which is electrically connected to the driving member and is used to control the driving member to drive the swing arm to abut against the external automobile plate chain; another control button is electrically connected to the driving mechanism and the driving member, and is used to control the driving mechanism to drive the traveling frame to travel and control the driving member to drive the swing arm to disengage from the external automobile plate chain; the remaining control button is electrically connected to the driving mechanism, and is used to control the driving mechanism to brake the traveling frame.

[0015] Preferably, the jig placement rack includes a bracket, the bracket includes a support rack and multiple placement racks, multiple placement racks are installed on the support rack at intervals, the number of the placement racks is consistent with the number of models of the jigs, and multiple models of jigs can be placed on multiple placement racks one by one; the operating frame also includes a frame installed on the walking platform, and the support rack is rotatably installed above the frame so that the support rack can rotate relative to the frame.

[0016] In the technical solution of the present invention, a synchronous trolley can be used to complete a continuous cycle during the automobile assembly process, accelerating production and improving efficiency. The synchronous trolley's design facilitates operator use and operation, improving operational convenience and reducing labor intensity. Furthermore, during use, the synchronous trolley can place various jigs on the jig rack on the operating frame, eliminating the need for operators to carry multiple jigs back and forth, reducing repetitive labor and improving production efficiency. Furthermore, by mounting the jig rack on the traveling platform, the jig handling process can be completed by utilizing the synchronous trolley's travel, eliminating manual handling and significantly reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 the structures shown in these drawings without paying any creative work.

[0018] Figure 1 A three-dimensional schematic diagram of a synchronous trolley according to an embodiment of the present invention at one viewing angle;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of area A in the middle;

[0020] Figure 3 This is a three-dimensional schematic diagram of a synchronization trolley in another perspective according to an embodiment of the present invention;

[0021] Figure 4 for Figure 3 A magnified schematic diagram of area B in the middle;

[0022] Figure 5 This is a three-dimensional schematic diagram of a synchronization trolley from another perspective according to an embodiment of the present invention;

[0023] Figure 6 This is an exploded schematic diagram of a guide mechanism in a synchronous trolley according to an embodiment of the present invention;

[0024] Figure 7 This is a three-dimensional schematic diagram of an operating frame in a synchronous trolley according to an embodiment of the present invention from one viewing angle;

[0025] Figure 8 This is a three-dimensional schematic diagram of an operating frame in a synchronous trolley according to an embodiment of the present invention from another perspective;

[0026] Figure 9 for Figure 8 Schematic diagram of the enlarged area C in the middle.

[0027] Description of Figure Numbers:

[0028]

[0029]

[0030] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in this embodiment with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in this embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0034] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] In addition, the technical solutions of the various embodiments of the present invention may be combined with each other, but this must be based on the premise that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is inconsistent or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention. It should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the present invention.

[0036] In the present invention, the descriptions of directions such as "up", "down", "front", "back", "left", and "right" are as follows: Figure 3 、 Figure 5 、 Figure 7 and Figure 8 The directions shown are for reference only and are used to explain the Figure 3 、 Figure 5 、 Figure 7 and Figure 8 The relative positional relationship between the components in the shown posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] The present invention provides a synchronous trolley.

[0038] like Figures 1 to 7As shown, the synchronous trolley 300 of this embodiment includes an operating frame 100 and a walking platform 200, wherein the operating frame 100 includes a jig placement rack 20, and there are various types of jigs. The jig placement rack 20 is used to place various types of jigs; the jig placement rack 20 is installed on the walking platform 200, and the walking platform 200 is provided with a synchronization mechanism 70, and the synchronization mechanism 70 includes a driving member 71 and a swing arm 72. The driving member 71 is used to drive the swing arm 72 to abut or disengage with an external automobile plate chain (not shown) to correspondingly make the walking platform 200 and the external automobile plate chain move synchronously or disengage from each other.

[0039] The synchronized trolley 300 of this embodiment can be used for automobile assembly. During use, the synchronized trolley 300 is initially positioned in its initial working position, and the required jigs are placed on the jig rack 20 of the synchronized trolley 300. As can be understood, the external plate chain, which carries the vehicle body, moves forward, thereby driving the vehicle body forward. As the vehicle chain drives the vehicle body forward, the drive member 71 of the synchronized trolley 300 drives the swing arm 72 to abut against the external plate chain. Because the swing arm 72 of the synchronized mechanism 70 abuts against the external plate chain, the external plate chain drives the synchronized trolley 300 to move synchronously with it as the external plate chain moves. The operator removes the jig from the jig rack 20 and installs it on the vehicle body. Furthermore, during the operator's hoisting and installation of the vehicle door, the synchronized trolley 300 always moves synchronously with the external plate chain, allowing the synchronized trolley 300 to follow the operator throughout the entire process, facilitating operation. After the operation is completed, the driving member 71 drives the swing arm 72 to disengage from the external vehicle plate chain, thereby disengaging the traveling platform 200 from the external vehicle plate chain. The traveling platform 200 no longer moves synchronously with the external vehicle plate chain. The synchronous trolley 300 can return to its initial working position by moving the traveling platform 200 to perform the next operation. It can be understood that the next operation can repeat the process of the previous operation, completing a continuous cycle operation process, accelerating the pace of production and improving production efficiency. The design of the synchronous trolley 300 is convenient for the operator to use and operate, improving operational convenience and reducing labor intensity.

[0040] Furthermore, during use, the synchronous trolley 300 of this embodiment can place various types of jigs on the jig rack 20 of the operating frame 100. In one embodiment, there are three types of jigs suitable for automobiles: Type A, Type B, and Type C. Type A, Type B, and Type C jigs can all be placed simultaneously on the jig rack 20, eliminating the need for operators to carry multiple jig types back and forth, reducing repetitive labor and improving production efficiency. Furthermore, by mounting the jig rack 20 on the traveling platform 200, the jig handling process is completed by utilizing the traveling motion of the synchronous trolley 300, thereby eliminating manual handling and significantly reducing labor intensity.

[0041] Specifically, the walking platform 200 of this embodiment is further provided with a first travel switch 201. The first travel switch 201 is spaced apart from the swing arm 72. The first travel switch 201 is electrically connected to the drive member 71. The first travel switch 201 is used to trigger the drive member 71 to start. Specifically, the first travel switch 201 is located in front of the swing arm 72. The external automobile plate chain has a first support seat and a second support seat, wherein the first support seat is located in front of the second support seat. When the walking platform 200 moves to the initial working position, the first travel switch 201 first touches the first support seat, and the first travel switch 201 triggers the drive member 71 to start. The drive member 71 then drives the swing arm 72 to abut against the second support seat on the external automobile plate chain, so that the swing arm 72 abuts against the front side of the second support seat, thereby connecting the synchronous trolley 300 with the automobile plate chain, so that the synchronous trolley 300 can move synchronously with the automobile plate chain. The structure is simple and the design is reasonable.

[0042] like Figure 3 and Figure 4 As shown, the driving member 71 of this embodiment is a driving cylinder, the output shaft of the driving cylinder is connected to the connecting end of the swing arm 72, and the free end of the swing arm 72 is away from the connecting end of the swing arm 72. The synchronization mechanism 70 also includes a connecting plate 73, one end of the connecting plate 73 is hinged to the cylinder body of the driving cylinder, and the other end of the connecting plate 73 is hinged to a position on the swing arm 72 close to its connecting end; the driving cylinder is used to drive the swing arm 72 to swing toward or away from the external automobile plate chain, so as to correspondingly make the free end of the swing arm 72 abut against or disengage from the external automobile plate chain.

[0043] The two ends of the connecting plate 73 are respectively hinged to the cylinder body of the driving cylinder and the swing arm 72, so that a connecting rod structure is formed between the connecting plate 73, the cylinder and the swing arm 72. Before the swing arm 72 swings, the swing arm 72 is in its original position and is located directly above the walking platform 200. When the driving cylinder is started, the output shaft of the driving cylinder drives the connecting end of the swing arm 72 forward, so that the free end of the swing arm 72 swings counterclockwise to the outside of the walking platform 200 and abuts against the front side of the second support seat, thereby allowing the synchronous trolley 300 to move synchronously with the automobile chain plate. After the operation is completed, the output shaft of the driving cylinder drives the connecting end of the swing arm 72 backward, so that the free end of the swing arm 72 swings clockwise back to its original position. The design is reasonable and ingenious.

[0044] like Figures 1 to 6As shown, the synchronous trolley 300 of this embodiment further includes a guide mechanism 80, which includes a mounting seat 81 and a sheave 82. The sheave 82 is rotatably mounted on the mounting seat 81 via a transversely disposed first rotating shaft 83. The sheave 82 is configured to engage in rolling contact with the external guide rail 400. It is understood that in an automobile assembly workshop, the workshop floor may be paved with a guide rail 400. The guide rail 400 is rod-shaped, and the outer periphery of the sheave 82 has a groove that mates with the guide rail 400, allowing the sheave 82 to roll along the guide rail 400. During the movement of the synchronous trolley 300, the sheave 82 of the guide mechanism 80 engages in rolling contact with the guide rail 400, providing a guide function, allowing the synchronous trolley 300 to move along the extension direction of the guide rail 400 and preventing the synchronous trolley 300 from deviating from the guide rail 400 during movement.

[0045] Furthermore, the guide mechanism 80 includes a transition plate 84 and two oppositely disposed rollers 85. The transition plate 84 is mounted on the bottom of the mounting base 81 and has a clearance hole 841 for the sheave 82 to pass through. A guide groove 851 is formed between the two rollers 85, which cooperates with the external guide rail 400. The rollers 85 are rotatably mounted on the bottom of the transition plate 84 via a second vertically disposed rotating shaft 86. The rollers 85 are configured to engage in rolling contact with the external guide rail 400. In this embodiment, the two rollers 85 of the guide mechanism 80 are disposed front and rear in an opposite direction, with a guide groove 851 formed between the two rollers 85. The clearance hole 841 on the transition plate 84 allows the sheave 82 to pass through the clearance hole 841 and engage in rolling contact with the top of the guide rail 400. Simultaneously, the two rollers 85 engage in rolling contact with the left and right sides of the guide rail 400, respectively, thereby forming a multi-directional limiter, thereby improving the reliability of preventing the synchronous trolley 300 from deviating from the guide rail 400 during travel.

[0046] In one embodiment, each guide mechanism 80 includes multiple roller assemblies spaced apart along the extension direction of the guide rail 400, i.e., along the front-to-back direction. Each roller assembly includes two rollers 85 positioned in a front-to-back relationship. Providing multiple roller assemblies further improves the reliability of the guidance of the synchronous trolley 300. Furthermore, the presence of multiple guide mechanisms 80, spaced apart along the extension direction of the external guide rail 400, i.e., spaced apart along the front-to-back direction, further improves the reliability of the guidance of the synchronous trolley 300, enhancing the stability and route accuracy of the synchronous trolley 300.

[0047] The traveling platform 200 of this embodiment includes a traveling frame 205 and a drive mechanism 90. The drive mechanism 90 and the operating frame 100 are both mounted on the traveling frame 205. The traveling frame 205 is also equipped with traveling wheels 206. The drive mechanism 90 is used to drive the traveling frame 205 to move via the traveling wheels 206. The drive mechanism 90 of this embodiment can be a pneumatic motor as known in the art. When the pneumatic motor is activated, it can drive the traveling frame 205 forward and backward. In addition, the traveling frame 205 of this embodiment is also equipped with a shock absorbing device 91. The shock absorbing device 91 can be a conventional device to prevent the synchronous trolley 300 from jolting during travel and ensure the stability of the synchronous trolley 300.

[0048] The walking frame 205 of this embodiment is also provided with a second travel switch 202 and a third travel switch 203. The second travel switch 202 and the third travel switch 203 are respectively arranged on both sides of the first travel switch 201. The second travel switch 202 and the third travel switch 203 are both electrically connected to the drive mechanism 90 and are both used to trigger the drive mechanism 90 so that the drive mechanism 90 brakes the walking frame 205.

[0049] Specifically, the second travel switch 202 can be set at the front end of the traveling frame 205, the third travel switch 203 can be set at the rear end of the traveling frame 205, and the first travel switch 201 is set on the traveling frame 205 at a position between the second travel switch 202 and the third travel switch 203. The extreme positions at both ends of the guide rail 400 in the automobile assembly workshop are provided with limiting structures, such as limiting plates or limiting blocks. When the synchronous trolley 300 moves forward to the extreme position, the second travel switch 202 can touch the limiting structure at the front end of the guide rail 400. At this time, the second travel switch 202 triggers the pneumatic motor, which can brake the traveling frame 205, so that the synchronous trolley 300 no longer moves forward and avoids leaving the guide rail 400. Similarly, when the synchronous trolley 300 moves backward to the extreme position, the third travel switch 203 may touch the limit structure at the rear end of the guide rail 400. At this time, the third travel switch 203 triggers the pneumatic motor, and the pneumatic motor can brake the walking frame 205, so that the synchronous trolley 300 no longer moves backward, avoiding leaving the guide rail 400.

[0050] The traveling frame 205 of this embodiment includes a base frame 2051 and a vertical frame 2052 mounted on the base frame 2051. The driving mechanism 90, synchronization mechanism 70, operating frame 100, and traveling wheels 206 are all mounted on the base frame 2051. The vertical frame 2052 is mounted with a wrench placement rack 207 and a fourth travel switch 204. The wrench placement rack 207 is used to place a wrench. The fourth travel switch 204 is located near the wrench placement rack 207. The fourth travel switch 204 is used to trigger the driving mechanism 90 when it detects that a wrench is placed on the wrench placement rack 207, thereby causing the driving mechanism 90 to brake the traveling frame 205. The base frame 2051, serving as the base of the synchronization trolley 300, is located at the bottom of the vertical frame 2052. The vertical frame 2052 is mounted on the base frame 2051, making it convenient for the operator to push, pull, or hold the vehicle by hand.

[0051] When in use, the synchronization trolley 300 can travel on the right side of the vehicle's plate chain. The synchronization mechanism 70 can be mounted on the left side of the base frame 2051, and the operating frame 100 can be mounted in the middle of the base frame 2051. Multiple running wheels 206 can be mounted on the right side of the base frame 2051 in a front-to-back direction. For ease of operation, a wrench rack 207 can be mounted on the right side of the vertical frame 2052. The fourth travel switch 204 can be positioned near and above the wrench rack 207. During operation, the operator needs to use a wrench to tighten the bolts connecting the vehicle door to the fixture. After use, the wrench can be placed in the wrench rack 207 on the vertical frame 2052. When the fourth travel switch 204 detects that the wrench is placed in the wrench rack 207, it triggers the pneumatic motor, causing the pneumatic motor to brake the running frame 205.

[0052] Furthermore, the vertical frame 2052 of this embodiment is also equipped with three control buttons 208, one of which is electrically connected to the driving member 71 and is used to control the driving member 71 to drive the swing arm 72 to abut against the external automobile plate chain; another control button 208 is electrically connected to the driving mechanism 90 and the driving member 71, and is used to control the driving mechanism 90 to drive the traveling frame 205 to travel and to control the driving member 71 to drive the swing arm 72 to disengage from the external automobile plate chain; the remaining control button 208 is electrically connected to the driving mechanism 90 and is used to control the driving mechanism 90 to brake the traveling frame 205.

[0053] Specifically, the three control buttons 208 of this embodiment are respectively a stop button, a synchronization button, and a return button. These three control buttons 208 can be set to different colors to clearly indicate the corresponding function to the operator. The return button controls the driver 71 to disengage the swing arm 72 from the second support seat on the vehicle plate chain and simultaneously controls the pneumatic motor to drive the traveling frame 205 backward to its initial working position. The stop button controls the drive mechanism 90 to brake the traveling frame 205. The synchronization button controls the driver 71 to activate, driving the swing arm 72 to abut against the second support seat on the vehicle plate chain, achieving the connection and synchronous movement of the synchronous trolley 300 and the vehicle plate chain. The three control buttons 208 serve as protective devices. If other electronic components on the traveling platform 200, such as the first travel switch 201, the second travel switch 202, the third travel switch 203, and the fourth travel switch 204, are malfunctioning, manually pressing the corresponding control button 208 will activate the corresponding function.

[0054] like Figures 1 to 9 As shown, the fixture placement rack 20 of this embodiment includes a bracket 21, the bracket 21 includes a support frame 211 and multiple placement racks 212, multiple placement racks 212 are installed on the support frame 211 at intervals, the number of placement racks 212 is consistent with the number of fixture models, and multiple models of fixtures can be placed one-to-one on multiple placement racks 212; the operating frame 100 also includes a frame 10 installed on the walking platform 200, and the support frame 211 is rotatably installed above the frame 10 so that the support frame 211 can rotate relative to the frame 10.

[0055] During use, the operating frame 100 can place various types of jigs on the placement racks 212 of the multiple jig placement racks 20 in a one-to-one correspondence. In one embodiment, there are three types of jigs suitable for automobiles, namely type A jigs, type B jigs, and type C jigs. There are also three placement racks 212. When in use, the three placement racks 212 respectively place type A jigs, type B jigs, and type C jigs. This allows the jig placement racks 20 to simultaneously hold various types of jigs, eliminating the need for operators to carry various types of jigs back and forth, reducing repetitive labor and improving production efficiency. In addition, the support frame 211 is rotatably mounted above the frame 10, allowing the jig placement racks 20 to rotate 360 ​​degrees relative to the frame 10, thereby rotating the various types of jigs placed on the jig placement racks 20 to the desired angle and position, facilitating operator operation and further improving production efficiency.

[0056] During use of the synchronous trolley 300 of this embodiment, various types of jigs, such as type A jigs, type B jigs, and type C jigs, are first placed on the jig placement rack 20 of the synchronous trolley 300, and by rotating the jig placement rack 20, the required type of jig, such as type A jig, is rotated to the side close to the vehicle body. When the vehicle chain plate moves forward until the first support seat touches the first travel switch 201, the driving cylinder drives the swing arm 72 to abut against the second support seat, so that the synchronous trolley 300 in the initial working position moves synchronously with the vehicle plate chain. The operator removes the jig placed on the jig placement rack 20 and installs it on the vehicle body. Moreover, during the process of hoisting and installing the vehicle door, the synchronous trolley 300 always moves synchronously with the external vehicle plate chain, so that the synchronous trolley 300 can always follow the operator during the operator's operation, making it convenient for the operator to operate. During the operation, the operator can use a wrench to tighten the bolts connecting the vehicle door and the jig. After the operation is completed, the operator presses the return button, which controls the drive cylinder to drive the swing arm 72 to disengage from the external vehicle plate chain, thereby disengaging the traveling platform 200 from the external vehicle plate chain. The traveling platform 200 no longer moves synchronously with the external vehicle plate chain. At the same time, the return button controls the start of the pneumatic motor, which drives the synchronous motor to move the synchronous trolley 300 back to the initial working position for the next operation.

[0057] In the operating frame 100 of the synchronous trolley 300 of this embodiment, the support frame 211 is installed above the frame 10 through the first rotating mechanism 30, so that the support frame 211 can rotate relative to the frame 10. Specifically, the first rotating mechanism 30 includes a first bearing seat 31 and a first bearing 32 installed on the first bearing seat 31. The frame 10 includes an adapter plate 11, and the first bearing seat 31 is installed on the adapter plate 11. The support frame 211 includes a vertically arranged support rod 2111, and the first bearing 32 is sleeved outside the support rod 2111. Specifically, the first bearing 32 can be sleeved outside the support rod 2111 through a locking ring 2112, so that the support rod 2111 can be rotatably installed on the first bearing seat 31 through the first bearing 32. Through the cooperation of the first bearing 32 and the first bearing seat 31, the support rod 2111 can rotate 360 ​​degrees relative to the first bearing seat 31, thereby realizing the 360-degree rotation of the jig placement frame 20 relative to the frame 10. It is simple, convenient and easy to manufacture.

[0058] Furthermore, the operating frame 100 also includes a second rotating mechanism 40, and the frame 10 also includes a base plate 12 and a plurality of spaced columns 13, the base plate 12 is located below the adapter plate 11, the columns 13 are installed between the base plate 12 and the adapter plate 11, the support rod 2111 passes through the adapter plate 11, and the support rod 2111 is installed on the base plate 12 via the second rotating mechanism 40, so that the support rod 2111 can rotate relative to the base plate 12. In this embodiment, the columns 13 and the support rod 2111 are both vertically arranged, and the plurality of columns 13 are arranged around the support rod 2111, and the support rod 2111 is located in the middle of the plurality of columns 13. The support rod 2111 passes through the adapter plate 11 and the base plate 12 from top to bottom, connecting the jig placement rack 20 and the frame 10, thereby improving the assembly stability of the operating frame 100. The first rotating mechanism 30 is mounted on the adapter plate 11 , while the second rotating mechanism 40 is mounted on the base plate 12 . The support rod 2111 is rotated 360° by the first rotating mechanism 30 and the second rotating mechanism 40 , thereby enabling the fixture placement rack 20 to rotate 360° relative to the frame 10 .

[0059] Specifically, the second rotating mechanism 40 of this embodiment includes a second bearing seat 41 and a second bearing 42 mounted on the second bearing seat 41. The second bearing seat 41 is mounted on the base plate 12, and the second bearing 42 is sleeved on the outside of the support rod 2111. Specifically, the second bearing 42 can be sleeved on the outside of the support rod 2111 via a locking ring 2112, so that the support rod 2111 is rotatably mounted on the second bearing seat 41 via the second bearing 42. Through the cooperation of the second bearing 42 and the second bearing seat 41, the support rod 2111 can rotate 360 ​​degrees relative to the second bearing seat 41, thereby enabling the fixture placement rack 20 to rotate 360 ​​degrees relative to the frame 10. This is simple, convenient, and easy to manufacture.

[0060] In this embodiment, the fixture placement rack 20 also includes a material hopper 22, which is installed on the support rack 211 and connected to the placement rack 212. The material hopper 22 is used to place materials. The materials can be screws, bolts, nuts, or wrenches and other tools, which are easy for operators to take, facilitate operations, and improve production efficiency.

[0061] The operating frame 100 of this embodiment further includes a limit block 50 and a stop rod 60. The limit block 50 is mounted at the bottom of the material hopper 22, and the stop rod 60 is mounted on the adapter plate 11. The limit block 50 is used to abut against the stop rod 60. During the rotation of the jig rack 20, the limit block 50 rotates along with the jig rack 20. When it rotates to the position of the stop rod 60, it abuts against the stop rod 60 on the adapter plate 11, thereby braking the jig rack 20. The jig rack 20 will not continue to rotate due to inertia, so that the jig rack 20 can be parked in an appropriate position, thereby allowing the various types of jigs placed on the jig rack 20 to be rotated to the required angle and position, facilitating the operator's operation and further improving production efficiency.

[0062] Specifically, a limiting groove 51 is provided at the bottom of the limiting block 50, and the stop rod 60 is telescopically mounted on the adapter plate 11, and a stop block 61 for cooperating with the limiting groove 51 is provided at the upper end of the stop rod 60. Figure 3 and Figure 4 As shown, the limit block 50 is provided with an inverted V-shaped limit slot 51, with the opening of the limit slot 51 facing downward. The stop rod 60 is telescopically mounted on the adapter plate 11, and the upper end of the stop rod 60 is provided with a stop block 61. When the limit block 50 rotates with the jig rack 20 to the position of the stop rod 60, the stop rod 60 extends upward into the limit slot 51, thereby braking the jig rack 20. When the jig rack 20 needs to be rotated again, the jig rack 20 can be manually rotated. The stop rod 60 is then forced to retract downward, causing the stop block 61 at the upper end of the stop rod 60 to disengage the limit slot 51. The jig rack 20 is no longer restricted and can continue to rotate, making it flexible and convenient to use.

[0063] Furthermore, the stop rod 60 is a spring connecting rod, and a shaft sleeve 14 is installed on the adapter plate 11. The lower end of the spring connecting rod is slidably installed in the shaft sleeve 14, and the stop block 61 is a roller, which is rotatably installed on the upper end of the spring connecting rod. It can be understood that the spring connecting rod is elastic and has the function of extending and retracting up and down, so that the roller can extend upward into the limit groove 51 or retract downward to achieve engagement with or disengagement from the limit groove 51. The roller is rotatably installed on the upper end of the spring connecting rod, so that the roller can roll into the limit groove 51 or roll out of the limit groove 51, thereby improving the smoothness of the engagement between the roller and the limit groove 51. When the jig placement rack 20 needs to be rotated again, it is convenient for the roller to roll out of the limit groove 51, thereby facilitating operation.

[0064] Furthermore, there are multiple limit blocks 50, and the limit blocks 50 are arranged in a one-to-one correspondence with the number of placement racks 212. In this embodiment, there are three placement racks 212, and the number of limit blocks 50 is also three. The three limit blocks 50 are spaced apart at the bottom of the material hopper 22 and are arranged in a one-to-one correspondence with the three placement racks 212. It can be understood that the limit blocks 50 are arranged in a one-to-one correspondence with the number of fixture models. When in use, the three placement racks 212 are used to place type A jigs, type B jigs and type C jigs respectively. When type A jig is needed, the type A jig can be rotated to the required angle and position, and the entire jig placement rack 20 can be braked by utilizing the cooperation of the limit block 50 and the stop rod 60 corresponding to the type A jig; when type B jig is needed, the type B jig can be rotated to the required angle and position, and the entire jig placement rack 20 can be braked by utilizing the cooperation of the limit block 50 and the stop rod 60 corresponding to the type B jig; when type C jig is needed, the type C jig can be rotated to the required angle and position, and the entire jig placement rack 20 can be braked by utilizing the cooperation of the limit block 50 and the stop rod 60 corresponding to the type C jig, which further facilitates the operator's operation and greatly improves production efficiency.

[0065] In this embodiment, the fixture placement rack 20 further includes a guide hopper 23 mounted on the support frame 211 and positioned above the material placement hopper 22. The guide hopper 23 has a dropout opening 231 corresponding to the material placement hopper 22. In this embodiment, the dropout opening 231 of the guide hopper 23 corresponds to the material placement hopper 22. During operation, the operator can place material, such as screws, into the guide hopper 23, which then falls through the dropout opening 231 into the material placement hopper 22 for collection.

[0066] In this embodiment, the placement rack 212 includes a pair of hooks 2121 and two spaced placement rods 2122. The pair of hooks 2121 is respectively provided on the two placement rods 2122, and the hooks 2121 are used to hang the jig. In this embodiment, there are three placement racks 212, each of which includes two spaced placement rods 2122, each of which is provided with a hook 2121. Thus, a pair of hooks 2121 is provided on both placement rods 2122. The hooks 2121 can be used to hang the jig, making it easier for the operator to pick it up.

[0067] In this embodiment, a pair of hooks 2121 on the same placement rack 212 have the same height, and multiple pairs of hooks 2121 on different placement racks 212 are staggered in height. Figure 7 and Figure 8As shown, there are three racks 212, each having a pair of hooks 2121. A total of three racks 212 have three pairs of hooks 2121. A pair of hooks 2121 on the same rack 212 can be used to hang a single type of jig. These pairs of hooks 2121 are of equal height and spaced apart, making it convenient for hanging jigs. The three pairs of hooks 2121 on different racks 212 are staggered in height, meaning that the three pairs of hooks 2121 are positioned at different heights. For example, one pair of hooks 2121 is positioned higher for hanging Type A jigs, another pair of hooks 2121 is positioned more moderately for hanging Type B jigs, and the remaining pair of hooks 2121 is positioned lower for hanging Type C jigs. The staggered height distribution of the three pairs of hooks 2121 prevents interference between jigs when three jigs are simultaneously hung on the jig rack 20.

[0068] The frame 10 of this embodiment is detachably mounted on the walking platform 200. The jig rack 20 is detachably mounted on the walking platform 200 via the frame 10. Specifically, the frame 10 is detachably mounted on the base frame 2051 of the walking platform 200, facilitating assembly and disassembly. The jig rack 20 is positioned on the walking platform 200, allowing it to move as the walking platform 200 moves. This eliminates the need for manual jig handling, reduces labor intensity, and protects workers from injury. Furthermore, using the walking platform 200 instead of manual handling reduces workplace risks and enhances safety.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A synchronous trolley, characterized in that: The synchronous trolley comprises: An operating frame, comprising a fixture placement frame, wherein there are various types of fixtures, and the fixture placement frame is used to place various types of fixtures; A walking platform, the fixture placement frame is installed on the walking platform, and the walking platform is provided with a synchronization mechanism, the synchronization mechanism including a driving member and a swing arm, the driving member is used to drive the swing arm to abut or disengage with the external automobile plate chain, so as to correspondingly make the walking platform and the external automobile plate chain move synchronously or disengage from each other; The fixture placement rack includes a bracket, which includes a support frame and a plurality of placement racks. The plurality of placement racks are installed on the support frame at intervals. The number of the placement racks is consistent with the number of models of the fixtures. The fixtures of various models can be placed on the plurality of placement racks in a one-to-one correspondence. The operating frame also includes a frame installed on the walking platform, and the support frame is rotatably installed above the frame so that the support frame can rotate relative to the frame. The frame includes an adapter plate; the jig placement rack also includes a material hopper, which is mounted on the support rack and connected to the placement rack; the operating rack also includes a limit block and a stop rod, the limit block is mounted at the bottom of the material hopper, the stop rod is mounted on the adapter plate, and the limit block is used to abut against the stop rod; a limit slot is provided at the bottom of the limit block, the stop rod is telescopically mounted on the adapter plate, and the upper end of the stop rod is provided with a stop block for cooperating with the limit slot.

2. The synchronous trolley according to claim 1, characterized in that: The walking platform is further provided with a first travel switch, which is spaced apart from the swing arm and electrically connected to the driving member. The first travel switch is used to trigger the driving member to start.

3. The synchronous trolley according to claim 1, characterized in that: The driving member is a driving cylinder, the output shaft of the driving cylinder is connected to the connecting end of the swing arm, and the free end of the swing arm is away from the connecting end of the swing arm. The synchronization mechanism also includes a connecting plate, one end of the connecting plate is hinged to the cylinder body of the driving cylinder, and the other end of the connecting plate is hinged to a position on the swing arm close to its connecting end; the driving cylinder is used to drive the swing arm to swing toward or away from the external automobile plate chain, so as to correspondingly make the free end of the swing arm abut against or disengage from the external automobile plate chain.

4. The synchronous trolley according to claim 3, characterized in that: The synchronous trolley further comprises a guide mechanism, which comprises a mounting seat and a sheave. The sheave is rotatably mounted on the mounting seat via a transversely arranged first rotating shaft, and the sheave is used for rolling contact with the external guide rail.

5. The synchronous trolley according to claim 4, characterized in that: The guide mechanism includes a transition plate and two oppositely arranged rollers. The transition plate is installed at the bottom of the mounting seat, and the transition plate is provided with an avoidance hole for the groove wheel to pass through. A guide groove that cooperates with the external guide rail is formed between the two rollers. The rollers are rotatably installed at the bottom of the transition plate through a second vertically arranged rotating shaft. The rollers are used for rolling contact with the external guide rail.

6. The synchronous trolley according to claim 2, characterized in that: The walking platform includes a walking frame and a driving mechanism. The driving mechanism and the operating frame are both installed on the walking frame. The walking frame is also equipped with walking wheels. The driving mechanism is used to drive the walking frame to move via the walking wheels.

7. The synchronous trolley according to claim 6, characterized in that: The walking frame is also provided with a second travel switch and a third travel switch, which are respectively arranged on both sides of the first travel switch. The second travel switch and the third travel switch are both electrically connected to the driving mechanism and are both used to trigger the driving mechanism so that the driving mechanism brakes the walking frame.

8. The synchronous trolley according to claim 6, characterized in that: The traveling frame includes a bottom frame and a vertical frame installed on the bottom frame, and the driving mechanism, the synchronization mechanism, the operating frame and the traveling wheel are all installed on the bottom frame; the vertical frame is installed with a wrench placement rack and a fourth stroke switch, the wrench placement rack is used to place a wrench, the fourth stroke switch is close to the wrench placement rack, and the fourth stroke switch is used to trigger the driving mechanism when it detects that a wrench is placed on the wrench placement rack, so that the driving mechanism brakes the traveling frame.

9. The synchronous trolley according to claim 8, characterized in that: The vertical frame is also equipped with three control buttons, one of which is electrically connected to the driving member and is used to control the driving member to drive the swing arm to abut against the external automobile plate chain; another control button is electrically connected to the driving mechanism and the driving member, and is used to control the driving mechanism to drive the traveling frame to travel and control the driving member to drive the swing arm to disengage from the external automobile plate chain; the remaining control button is electrically connected to the driving mechanism, and is used to control the driving mechanism to brake the traveling frame.

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