Automatic assembly workbench for climbing vehicle boom

Abstract

The application discloses a kind of automatic assembly workbench of climbing vehicle boom, including bottom frame, conveying roller mechanism, centering positioning mechanism, positioning inner core, bolt positioning mechanism, side plate positioning mechanism, tail frame top mechanism and head frame rolling mechanism, conveying roller mechanism, centering positioning mechanism are evenly arranged in a straight line on climbing vehicle boom assembly station, two bolt positioning mechanisms are oppositely arranged in the head of climbing vehicle boom assembly station, and several side plate positioning mechanisms are evenly arranged in the middle and tail of climbing vehicle boom assembly station, and movable rack is provided on the length direction of climbing vehicle boom on the both sides of bottom frame, and head frame rolling mechanism and tail frame top mechanism are movably arranged on movable rack.The application can be combined with feeding boom automatic feeding, and combined with spot welding robot to realize automatic positioning and automatic assembly, which can greatly reduce labor cost, improve production efficiency, and its positioning is accurate, to ensure the production quality of climbing vehicle boom.

Description

Technical Field

[0001] This invention relates to the field of aerial work platform boom assembly technology, specifically to an automatic assembly workbench for aerial work platform booms. Background Technology

[0002] The existing assembly process for aerial work platform booms involves first manually hoisting the base plate, left side plate, right side plate, and cover plate separately, then assembling them using a positioning core as a standard, followed by manual measurement for positioning, and finally pre-assembly via manual spot welding. This assembly process is labor-intensive, costly, inefficient, and the manual positioning method is not precise enough. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic assembly workbench for aerial work platform booms. Combined with automatic feeding of the loading boom and spot welding robot, it can achieve automatic positioning and automatic assembly with precise positioning and high production efficiency.

[0004] The technical solution of the present invention is as follows:

[0005] An automatic assembly workbench for a climbing frame boom includes a base frame, a conveyor roller mechanism, a centering and positioning mechanism, a positioning core, a pin positioning mechanism, a side plate positioning mechanism, a tailstock clamping mechanism, and a headstock rolling mechanism. Several conveyor roller mechanisms, centering and positioning mechanisms, and side plate positioning mechanisms are provided. Two pin positioning mechanisms are provided. A climbing frame boom assembly station is provided on the base frame. The several conveyor roller mechanisms and centering and positioning mechanisms are evenly arranged in a straight line on the climbing frame boom assembly station. The climbing frame boom base plate is fed by a loading boom and positioned by several centering and positioning mechanisms. The positioning core is adapted to the inner cavity of the climbing frame boom. The two pin positioning mechanisms are positioned opposite each other on both sides of the head of the climbing frame boom assembly station. The several side plate positioning mechanisms are evenly arranged on both sides of the middle and tail of the climbing frame boom assembly station. The climbing frame boom side plates are fed by a loading boom to the pin positioning mechanisms and side plate clamping mechanisms. The platform positioning mechanism, through a pin positioning mechanism and a side plate positioning mechanism, places the platform boom side plates on both sides of the platform boom base plate and positions them with the positioning core. After the platform boom side plates and platform boom base plate are positioned, the platform boom cover plate is fed to the top of the two platform boom side plates by the loading boom and positioned by the positioning protrusion at one end of the platform boom and the positioning core at the other end. The two sides of the base frame are provided with movable racks along the length of the platform boom. The head frame rolling mechanism and the tail frame tightening mechanism are movably arranged on the movable racks. After the platform boom cover plate, platform boom side plates, and platform boom base plate are positioned, one end is tightened by the tail frame tightening mechanism and the other end is pressed by the head frame rolling mechanism. The head frame rolling mechanism can follow and cooperate with the spot welding robot to complete the spot welding work of the platform boom. After the spot welding work is completed, the platform boom is lifted and unloaded by several conveying roller mechanisms.

[0006] Furthermore, the conveying roller mechanism includes a roller and a lifting motor, wherein the motor shaft of the lifting motor faces upward and is connected to the roller.

[0007] Furthermore, the centering and positioning mechanism includes a bracket, a top plate, a centering execution cylinder, a centering transmission assembly, a first centering positioning block, and a second centering positioning block. The top plate is mounted on the bracket, and the top plate has a first movable slot and a second movable slot facing each other on the left and right sides along the width direction of the aerial work platform boom. The centering execution cylinder and the centering transmission assembly are mounted inside the bracket, and the centering execution cylinder is connected to the centering transmission assembly in a transmission manner. The first centering positioning block and the second centering positioning block are movably mounted on the centering transmission assembly on the left and right sides, with the top of the first centering positioning block extending out from the first movable slot and the top of the second centering positioning block extending out from the second movable slot.

[0008] Furthermore, the pin positioning mechanism includes a first left-right moving module, a first flipping module, a first flipping transmission assembly, a first lifting module, a first positioning plate, a first electromagnetic chuck, and a positioning pin. The first flipping module and the first flipping transmission assembly are movably mounted on the first left-right moving module. The first flipping module is connected to the first flipping transmission assembly. The first lifting module is rotatably mounted on the first flipping transmission assembly. The first positioning plate is movably mounted on the first lifting module. The first electromagnetic chuck and the positioning pin are mounted on the first positioning plate. Several first electromagnetic chucks are evenly distributed.

[0009] Furthermore, the side panel positioning mechanism includes a second left-right moving module, a second flipping module, a second flipping transmission assembly, a second lifting module, a second positioning plate, and a second electromagnetic chuck. The second flipping module and the second flipping transmission assembly are movably mounted on the second left-right moving module. The second flipping module is connected to the second flipping transmission assembly. The second lifting module is rotatably mounted on the second flipping transmission assembly. The second positioning plate is movably mounted on the second lifting module. The second electromagnetic chuck is evenly mounted on the second positioning plate.

[0010] Furthermore, the tailstock clamping mechanism includes a tailstock, a first tailstock moving motor, a second tailstock moving motor, a third left-right moving module, a fourth left-right moving module, a first top pressure plate, and a second top pressure plate. The first and second tailstock moving motors are arranged opposite each other on the tailstock, driving the tailstock to move along the movable racks on both sides. The third and fourth left-right moving modules are arranged opposite each other on the front side of the tailstock. The first top pressure plate is movably mounted on the third left-right moving module, and the second top pressure plate is movably mounted on the fourth left-right moving module.

[0011] Furthermore, the headframe rolling mechanism includes a headframe, a first headframe moving motor, a second headframe moving motor, a left side plate rolling module, a right side plate rolling module, and a cover plate rolling module. The first headframe moving motor and the second headframe moving motor are arranged opposite each other on the headframe, driving the headframe to move along the movable racks on both sides. The left side plate rolling module and the right side plate rolling module are arranged opposite each other on the headframe and located on both sides of the aerial work platform boom assembly station. The cover plate rolling module is arranged on the headframe and located above the aerial work platform boom assembly station.

[0012] Compared to existing technologies, the advantages of this invention are as follows: This invention provides an automated assembly workbench for aerial work platform booms, which can replace manual labor in the automated assembly process of aerial work platform booms. Combined with a loading boom, it can automatically load the base plate, left side plate, right side plate, and cover plate. The base plate is positioned by a centering and positioning mechanism. The left and right side plates are placed on both sides of the base plate by pin positioning mechanisms and side plate positioning mechanisms, and are positioned with positioning cores. Finally, the cover plate is positioned using the positioning cores. After positioning, one end of the aerial work platform boom is tightened by a tailstock clamping mechanism, and the other end is pressed by a headstock rolling mechanism. The headstock rolling mechanism can follow and cooperate with a spot welding robot to complete the spot welding work of the aerial work platform boom, thereby completing the pre-assembly of the aerial work platform boom. This automated assembly workbench for aerial work platform booms has a high degree of automation, which can greatly reduce labor costs, improve production efficiency, and its precise positioning ensures the production quality of the aerial work platform boom. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of an automatic assembly workbench for a climbing vehicle boom provided by the present invention;

[0015] Figure 2 This is a schematic diagram of the conveying roller mechanism described in this invention;

[0016] Figure 3 This is a schematic diagram of the centering and positioning mechanism described in this invention;

[0017] Figure 4 This is a schematic diagram of the pin positioning mechanism described in this invention;

[0018] Figure 5 This is a schematic diagram of the side plate positioning mechanism described in this invention;

[0019] Figure 6 This is a schematic diagram of the tailstock clamping mechanism described in this invention;

[0020] Figure 7 This is a schematic diagram of the headstock rolling mechanism described in this invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] To illustrate the technical solution described in this invention, specific embodiments are described below.

[0023] Example

[0024] Please see Figure 1 This embodiment provides an automatic assembly workbench for a climbing vehicle boom, including a base frame 1, a conveyor roller mechanism 2, a centering and positioning mechanism 3, a positioning core 4, a pin positioning mechanism 5, a side plate positioning mechanism 6, a tail frame tightening mechanism 7, and a head frame rolling mechanism 8. Several conveyor roller mechanisms 2, centering and positioning mechanisms 3, and side plate positioning mechanisms 6 are provided, and two pin positioning mechanisms 5 are provided. The base frame 1 has a climbing vehicle boom assembly station. Several conveyor roller mechanisms 2 and centering and positioning mechanisms 3 are evenly arranged in a straight line on the climbing vehicle boom assembly station. The positioning core 4 is adapted to the inner cavity of the climbing vehicle boom. The two pin positioning mechanisms 5 are positioned opposite each other on both sides of the head of the climbing vehicle boom assembly station. Several side plate positioning mechanisms 6 are evenly arranged on both sides of the middle and tail of the climbing vehicle boom assembly station. Movable racks 9 are provided on both sides of the base frame 1 along the length of the climbing vehicle boom. The head frame rolling mechanism 8 and the tail frame tightening mechanism 7 are movably mounted on the movable racks 9.

[0025] Working principle: The base plate, left side plate, right side plate, and cover plate are loaded by the loading boom; the base plate is positioned by several centering and positioning mechanisms 3; the left and right side plates are placed on the pin positioning mechanism 5 and the side plate positioning mechanism 6, and after being fixed by the pin positioning mechanism 5 and the side plate positioning mechanism 6, the left and right side plates are rotated to both sides of the boom base plate of the aerial work platform, and are positioned in conjunction with the positioning core 4; after the aerial work platform boom side plates are positioned with the aerial work platform boom base plate, the loading boom loads the cover plate to the two aerial work platforms. The top of the boom side plate is positioned by a positioning protrusion at one end of the boom and a positioning core 4 at the other end. After the boom cover plate, boom side plate, and boom bottom plate are positioned, one end is tightened by the tail frame clamping mechanism 7, and the other end is pressed by the head frame rolling mechanism 8. The head frame rolling mechanism 8 can follow and cooperate with the spot welding robot to complete the spot welding work of the boom, thereby completing the pre-assembly of the boom. After the pre-assembly is completed, several conveying roller mechanisms 2 lift the boom and unload it.

[0026] Specifically, such as Figure 2As shown, the conveying roller mechanism 2 includes a roller 21 and a lifting motor 22. The motor shaft of the lifting motor 22 faces upward and is connected to the roller 21. The roller 21 is used for loading the bottom plate and unloading the boom of the aerial work platform. The lifting motor 22 raises the roller when unloading to facilitate unloading.

[0027] Specifically, such as Figure 3 As shown, the centering and positioning mechanism 3 includes a bracket 31, a top plate 32, a centering execution cylinder 33, a centering transmission assembly 34, a first centering positioning block 35, and a second centering positioning block 36. The top plate 32 is mounted on the bracket 31. The top plate 32 has a first movable slot 321 and a second movable slot 322 that are opposite each other to each other along the width direction of the aerial work platform boom. The centering execution cylinder 33 and the centering transmission assembly 34 are mounted inside the bracket 31. The centering execution cylinder 33 is connected to the centering transmission assembly 34. The first centering positioning block 35 and the second centering positioning block 36 are movably mounted on the centering transmission assembly 34 with their left and right sides opposite each other. The top of the first centering positioning block 35 extends out from the first movable slot 321, and the top of the second centering positioning block 36 extends out from the second movable slot 322. Structural principle: The centering cylinder 33 can drive the first centering positioning block 35 and the second centering positioning block 36 to move relative to each other through the centering transmission assembly 34 to complete the positioning of the base plate or to release the boom of the climbing vehicle by moving in opposite directions during unloading.

[0028] Specifically, such as Figure 4 As shown, the pin positioning mechanism 5 includes a first left-right moving module 51, a first flipping module 52, a first flipping transmission assembly 53, a first lifting module 54, a first positioning plate 55, a first electromagnetic chuck 56, and a positioning pin 57. The first flipping module 52 and the first flipping transmission assembly 53 are movably mounted on the first left-right moving module 51. The first flipping module 52 is connected to the first flipping transmission assembly 53. The first lifting module 54 is rotatably mounted on the first flipping transmission assembly 53. The first positioning plate 55 is movably mounted on the first lifting module 54. The first electromagnetic chuck 56 and the positioning pin 57 are mounted on the first positioning plate 55. Several first electromagnetic chucks 56 are evenly arranged. Structural principle: The side plate is positioned by the first positioning plate 55, and the side plate can be attracted and fixed by several first electromagnetic chucks 56. The positioning pin 57 has a positioning function when the side plate is loaded. During positioning, the first flipping module 52 drives it to rotate towards the bottom plate of the aerial work platform boom, so that the side plate is perpendicular to the bottom plate of the aerial work platform boom. Under the action of the first left and right moving module 51 and the first lifting module 54, the positioning core is used to position the connection between the side plate and the bottom plate.

[0029] Specifically, such as Figure 5As shown, the side panel positioning mechanism 6 includes a second left-right moving module 61, a second flipping module 62, a second flipping transmission assembly 63, a second lifting module 64, a second positioning plate 65, and a second electromagnetic chuck 66. The second flipping module 62 and the second flipping transmission assembly 63 are movably mounted on the second left-right moving module 61. The second flipping module 62 is connected to the second flipping transmission assembly 63. The second lifting module 64 is rotatably mounted on the second flipping transmission assembly 63. The second positioning plate 65 is movably mounted on the second lifting module 64. The second electromagnetic chucks 66 are evenly distributed on the second positioning plate 65. Structural principle: The side panel is positioned by the second positioning plate 65, and the side panel is attracted and fixed by several second electromagnetic chucks 66. During positioning, the second flipping module 62 is driven to rotate towards the bottom plate of the aerial work platform boom, making the side panel perpendicular to the bottom plate of the aerial work platform boom. Under the action of the second left-right moving module 61 and the second lifting module 64, the side panel is positioned at the connection point with the bottom plate in conjunction with the positioning core.

[0030] Specifically, such as Figure 6 As shown, the tailstock clamping mechanism 7 includes a tailstock 71, a first tailstock moving motor 72, a second tailstock moving motor 73, a third left-right moving module 74, a fourth left-right moving module 75, a first pressure plate 76, and a second pressure plate 77. The first tailstock moving motor 72 and the second tailstock moving motor 73 are arranged opposite each other on the tailstock 71. The third left-right moving module 74 and the fourth left-right moving module 75 are arranged opposite each other on the front side of the tailstock 71. The first pressure plate 76 is movably mounted on the third left-right moving module 74, and the second pressure plate 77 is movably mounted on the fourth left-right moving module 75. Structural principle: The first tailstock moving motor 72 and the second tailstock moving motor 73 drive the tailstock to move along the movable racks on both sides. The third left-right moving module 74 and the fourth left-right moving module 75 can respectively drive the first pressure plate 76 and the second pressure plate 77 to move left and right. The first pressure plate 76 and the second pressure plate 77 press down on one end of the aerial work platform boom during welding.

[0031] Specifically, such as Figure 7As shown, the headframe rolling mechanism 8 includes a headframe 81, a first headframe moving motor 82, a second headframe moving motor 83, a left side plate rolling module 84, a right side plate rolling module 85, and a cover plate rolling module 86. The first headframe moving motor 82 and the second headframe moving motor 83 are arranged opposite each other on the headframe 81. The left side plate rolling module 84 and the right side plate rolling module 85 are arranged opposite each other on the headframe 81 and located on both sides of the aerial work platform boom assembly station. The cover plate rolling module 86 is arranged on the headframe 81 and located above the aerial work platform boom assembly station. Structural principle: The first headframe moving motor 82 and the second headframe moving motor 83 drive the headframe 81 to move along the movable racks 9 on both sides. The left side plate rolling module 84 and the right side plate rolling module 85 roll the left side plate and the right side plate from the other end of the aerial work platform boom during welding. The cover plate rolling module 86 rolls the top plate from above the aerial work platform boom during welding.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic assembly workbench for a climbing frame boom, characterized in that: The system includes a base frame, a conveyor roller mechanism, a centering and positioning mechanism, a positioning core, a pin positioning mechanism, a side plate positioning mechanism, a tailstock clamping mechanism, and a headstock rolling mechanism. Several conveyor roller mechanisms, centering and positioning mechanisms, and side plate positioning mechanisms are provided. Two pin positioning mechanisms are provided. The base frame has a boom assembly station. Several conveyor roller mechanisms and centering and positioning mechanisms are evenly arranged in a straight line at the boom assembly station. The boom base plate is fed by a loading boom and positioned by several centering and positioning mechanisms. The positioning core is adapted to the inner cavity of the boom. Two pin positioning mechanisms are positioned opposite each other on both sides of the head of the boom assembly station. Several side plate positioning mechanisms are evenly arranged on both sides of the middle and tail of the boom assembly station. The boom side plates are fed by a loading boom onto the pin positioning mechanisms and side plate positioning mechanisms, and then clamped by pins. The pin positioning mechanism and the side plate positioning mechanism place the boom side plates of the aerial work platform on both sides of the boom base plate and position them with the positioning core. After the boom side plates and the boom base plate are positioned, the boom cover plate is fed to the top of the two boom side plates by the loading boom and positioned by the positioning protrusion at one end of the boom and the positioning core at the other end. The two sides of the base frame are provided with movable racks along the length of the boom. The head frame rolling mechanism and the tail frame tightening mechanism are movably arranged on the movable racks. After the boom cover plate, boom side plates, and boom base plate are positioned, one end of the boom is tightened by the tail frame tightening mechanism and the other end is pressed by the head frame rolling mechanism. The head frame rolling mechanism can follow and cooperate with the spot welding robot to complete the spot welding work of the boom. After the spot welding work is completed, the boom is lifted and unloaded by several conveying roller mechanisms.

2. The automatic assembly workbench for the boom of an aerial work platform according to claim 1, characterized in that: The conveying roller mechanism includes a roller and a lifting motor, with the motor shaft of the lifting motor facing upward and connected to the roller.

3. The automatic assembly workbench for the boom of an aerial work platform according to claim 1, characterized in that: The centering and positioning mechanism includes a bracket, a top plate, a centering execution cylinder, a centering transmission assembly, a first centering positioning block, and a second centering positioning block. The top plate is mounted on the bracket and has a first movable slot and a second movable slot facing each other on the left and right sides along the width direction of the aerial work platform boom. The centering execution cylinder and the centering transmission assembly are mounted inside the bracket and are connected to the centering transmission assembly. The first centering positioning block and the second centering positioning block are movably mounted on the centering transmission assembly on the left and right sides. The top of the first centering positioning block extends out from the first movable slot, and the top of the second centering positioning block extends out from the second movable slot.

4. The automatic assembly workbench for the boom of an aerial work platform according to claim 1, characterized in that: The pin positioning mechanism includes a first left-right moving module, a first flipping module, a first flipping transmission component, a first lifting module, a first positioning plate, a first electromagnetic chuck, and a positioning pin. The first flipping module and the first flipping transmission component are movably mounted on the first left-right moving module. The first flipping module is connected to the first flipping transmission component. The first lifting module is rotatably mounted on the first flipping transmission component. The first positioning plate is movably mounted on the first lifting module. The first electromagnetic chuck and the positioning pin are mounted on the first positioning plate. Several electromagnetic chucks are evenly distributed.

5. The automatic assembly workbench for the boom of an aerial work platform according to claim 1, characterized in that: The side panel positioning mechanism includes a second left-right moving module, a second flipping module, a second flipping transmission assembly, a second lifting module, a second positioning plate, and a second electromagnetic chuck. The second flipping module and the second flipping transmission assembly are movably mounted on the second left-right moving module. The second flipping module is connected to the second flipping transmission assembly. The second lifting module is rotatably mounted on the second flipping transmission assembly. The second positioning plate is movably mounted on the second lifting module. The second electromagnetic chuck is evenly mounted on the second positioning plate.

6. The automatic assembly workbench for the boom of an aerial work platform according to claim 1, characterized in that: The tailstock clamping mechanism includes a tailstock, a first tailstock moving motor, a second tailstock moving motor, a third left-right moving module, a fourth left-right moving module, a first top pressure plate, and a second top pressure plate. The first and second tailstock moving motors are arranged opposite each other on the tailstock, driving the tailstock to move along the movable racks on both sides of the bottom frame. The third and fourth left-right moving modules are arranged opposite each other on the front side of the tailstock. The first top pressure plate is movably mounted on the third left-right moving module, and the second top pressure plate is movably mounted on the fourth left-right moving module.

7. The automatic assembly workbench for the boom of an aerial work platform according to claim 1, characterized in that: The headframe rolling mechanism includes a headframe, a first headframe moving motor, a second headframe moving motor, a left side plate rolling module, a right side plate rolling module, and a cover plate rolling module. The first and second headframe moving motors are arranged opposite each other on the headframe, driving the headframe to move along the movable racks on both sides of the bottom frame. The left side plate rolling module and the right side plate rolling module are arranged opposite each other on the headframe and located on both sides of the aerial work platform boom assembly station. The cover plate rolling module is arranged on the headframe and located above the aerial work platform boom assembly station.

Images