An automated assembly machine for pre-packaged gearboxes

By designing an automated assembly machine for pre-assembled gearboxes, automated feeding and preliminary assembly of gearbox parts were achieved, solving the problems of low assembly efficiency and high labor costs in existing technologies, and improving assembly accuracy and efficiency.

CN121893014BActive Publication Date: 2026-06-09HAIRUIEN AUTOMATION TECH (HEFEI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HAIRUIEN AUTOMATION TECH (HEFEI) CO LTD
Filing Date
2026-03-25
Publication Date
2026-06-09

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Abstract

This invention relates to the field of parts assembly technology, and discloses an automated assembly machine for pre-assembled gearboxes. The automated assembly machine includes a machine base with a conveyor belt. The conveyor belt has a transfer tray for storing gearbox parts. A mounting frame is located on one side of the conveyor belt. A cylinder five is horizontally mounted on the top of the mounting frame. A cylinder six is ​​fixedly connected to the output end of cylinder five. A pneumatic clamp four is fixedly mounted to the output end of cylinder six. Cylinders seven and eight are fixedly mounted on the mounting frame. A rotating clamp one is fixed to the output end of cylinder seven, and a rotating clamp two is fixed to the output end of cylinder eight. This invention, an automated assembly machine for pre-assembled gearboxes, automates the loading of various parts inside the gearbox, reducing manual operation costs. It completes the initial assembly operation by loading parts to a designated position, and then adjusts the assembled parts to fit the subsequent assembly sequence. This machine has broad application prospects.
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Description

Technical Field

[0001] This invention relates to the field of parts assembly technology, specifically an automated assembly machine for pre-assembled gearboxes. Background Technology

[0002] Gearboxes have a wide range of applications, converting received power back into the required kinetic energy in various energy transfer processes.

[0003] In existing technologies, gearbox assembly is completed using automated assembly equipment. However, for the various small parts of the gearbox, the assembly equipment cannot complete the assembly of all parts at once, and manual assistance is still required for loading and unloading various gearbox parts, resulting in low assembly efficiency and high labor costs.

[0004] Therefore, it is necessary to design an automated assembly machine with pre-assembled gearboxes. Summary of the Invention

[0005] The purpose of this invention is to provide an automated assembly machine for pre-assembled gearboxes to solve the problems in the prior art, such as difficulties in loading and unloading gearbox parts and high labor costs.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An automated assembly machine for pre-assembled gearboxes, wherein the gearbox is composed of upper and lower housings, a worm gear and a worm, and the automated assembly machine includes a machine base, on which a conveyor belt is provided, and a transfer tray for storing gearbox parts is provided on the conveyor belt;

[0008] A mounting frame is provided on one side of the conveyor belt. A cylinder five is horizontally mounted on the top of the mounting frame. A cylinder six is ​​fixedly connected to the output end of cylinder five. A pneumatic clamp four is fixedly mounted on the output end of cylinder six. Cylinders seven and eight are fixedly mounted on the mounting frame. A rotating clamp one is fixedly mounted on the output end of cylinder seven, and a rotating clamp two is fixedly mounted on the output end of cylinder eight.

[0009] Furthermore, one end of the machine tool is provided with a feeding area, and several limiting cylinders for fixing the transfer tray are installed on one side of the conveyor belt. On the other side, robotic arm one, robotic arm two and robotic arm three are arranged in sequence. A stand is provided between robotic arm three and robotic arm two. The mounting frame is located on the opposite side of the stand. A batch clamp is fixedly provided at the output end of robotic arm three.

[0010] Furthermore, the transfer tray is arrayed with fixture seats for placing the housing, and on one side of the transfer tray and the fixture seats, there are also horizontal material positions for horizontally placing the worm gear, vertical material position one for placing the end cap, and vertical material position two for vertically placing the worm gear.

[0011] Furthermore, the housing is provided with a through groove, in which a gasket for sealing is installed, and a foolproof groove is fixedly provided in the through groove for cooperating with the gasket.

[0012] Furthermore, at least one vibrating feeding plate for feeding washers is installed on the feeding area. Symmetrically distributed support frames are fixed on the feeding area. An electric slide table is fixed on one side of the support frame. A slider is slidably mounted on the electric slide table. A cylinder is fixed on the side of the slider. A movable seat is slidably mounted on the output end of the cylinder. A cylinder is fixed on the movable seat. A plug shaft is fixed on the output end of the cylinder.

[0013] The lower end of the movable seat is fixedly provided with a sleeve, and guide shafts are slidably provided on both sides of the sleeve, with the guide shafts connected to the insertion shaft.

[0014] Furthermore, the vibrating feeding plate has a sliding transfer plate at the discharge end, a storage trough on one side of the transfer plate, a cylinder three at one end of the transfer plate, the output end of the cylinder three being connected to one end of the transfer plate, and a vision inspection instrument one on one side of the transfer plate.

[0015] Furthermore, a rotary motor is fixedly installed between the visual inspection instrument and the conveyor belt, and an assembly base is provided between the rotary motor and the visual inspection instrument. The output end of the rotary motor is connected to a swing arm, and pneumatic clamps for removing parts from the fixture base are fixedly installed at both ends of the swing arm.

[0016] Furthermore, a pneumatic clamp is fixedly installed at the output end of the second robotic arm for end cap loading operations.

[0017] Furthermore, a cylinder four is fixedly installed on the top of the upright frame, and a gripper is fixedly connected to the output end of the cylinder four. A rotary motor two is fixedly installed on the upright frame, and a swing arm two is fixedly installed on the rotary motor two. Two pneumatic clamps three are fixedly installed at both ends of the swing arm two for clamping materials on vertical material position one and vertical material position two.

[0018] Furthermore, an electric slide table II is fixedly mounted on the upright frame, and a moving block is slidably mounted on the electric slide table II. The moving block is sequentially equipped with a vision inspection instrument II, a temporary storage rack for placing the end cap, and a clamping seat for fixing the worm gear. A sensor is fixedly mounted on the upright frame and located on one side of the rotary motor II.

[0019] The beneficial effects of this invention are:

[0020] 1. The present invention provides an automated assembly machine for pre-assembled gearboxes, wherein various parts inside the gearbox are fed through automated feeding operations, reducing manual operation costs, and the parts are fed to the designated positions to complete the initial assembly operation, and then the assembled parts are adjusted to the positions that conform to the subsequent assembly sequence.

[0021] 2. The present invention provides an automated assembly machine for pre-assembled gearboxes, which has a high degree of automation, simple and reliable pre-assembly operation, and simple assembly process, reducing the difficulty of assembly. During the assembly process, the product assembly accuracy is improved and the product assembly error is reduced. At the same time, it completes operations such as material leveling. It has good practicality and broad application prospects. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the internal structure of the automated assembly machine of the present invention;

[0024] Figure 2 This is a partial schematic diagram of the interior of the assembly machine of the present invention;

[0025] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is the present invention. Figure 2 Enlarged view of point B in the middle;

[0027] Figure 5 This is the present invention. Figure 2 Enlarged view of point C in the middle;

[0028] Figure 6 This is a schematic diagram of the feeding area of ​​the present invention;

[0029] Figure 7 This is the present invention. Figure 6 Enlarged view of point D;

[0030] Figure 8 This is a schematic diagram of the structure of the support frame of the present invention;

[0031] Figure 9 This is a schematic diagram of the frame of the present invention;

[0032] Figure 10 This is the present invention. Figure 9 Enlarged view of point E in the middle;

[0033] Figure 11 This is a schematic diagram of the mounting bracket of the present invention;

[0034] Figure 12 This is a schematic diagram of the pre-loaded tray of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Machine base; 2. Loading area; 3. Robotic arm one; 4. Robotic arm two; 5. Robotic arm three; 6. Stand; 7. Mounting frame; 10. Housing; 11. Conveyor belt; 12. Limit cylinder; 13. Transfer tray; 14. Fixture base; 15. Through slot; 16. Anti-mistake slot; 17. Vertical material position one; 18. Horizontal material position; 19. Vertical material position two; 20. Washer; 21. Electric slide table one; 22. Slider; 23. Cylinder two; 24. Vibrating loading tray; 25. Transfer plate; 26. Cylinder three; 27. Vision inspection instrument one; 28. Assembly base; 29. ​​Rotary motor one; 41. Pneumatic clamp two; 51. Batch 52. Measuring fixture; 60. Pre-loaded tray; 61. Sensor; 62. Cylinder 4; 63. Gripper; 64. Rotary motor 2; 65. Swing arm 2; 66. Pneumatic fixture 3; 67. Clamping seat; 68. Electric slide table 2; 69. Vision inspection instrument 2; 70. Temporary storage rack; 71. Cylinder 5; 72. Cylinder 6; 73. Pneumatic fixture 4; 74. Cylinder 7; 75. Rotary fixture 1; 76. Cylinder 8; 77. Rotary fixture 2; 100. Worm gear; 101. End cap; 221. Cylinder 1; 222. Moving seat; 231. Sleeve; 232. Insert shaft; 233. Guide shaft; 291. Pneumatic fixture 1. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] An automated assembly machine with pre-assembled gearboxes, such as Figure 1 As shown, the automated assembly machine includes a machine base 1, a feeding area 2 at one end of the machine base 1, a conveyor belt 11 on the machine base 1, a transfer tray 13 on the conveyor belt 11, and several limit cylinders 12 installed on one side of the conveyor belt 11. The limit cylinders 12 are located on the side of each station and fix the transfer tray 13 on the conveyor belt 11 so that the transfer tray 13 stops at the station.

[0039] On the other side of the machine 1, robotic arm 3, robotic arm 4 and robotic arm 5 are arranged in sequence. A stand 6 is arranged between robotic arm 5 and robotic arm 4, and a mounting frame 7 is arranged on the opposite side of the stand 6.

[0040] like Figure 2 , Figure 3As shown, jig seats 14 are arranged in sequence on the transfer tray 13. In this embodiment, the jig seats 14 are used to place the housing 10 of the gearbox. The inner side of the housing 10 placed on the jig seats 14 at both ends faces upward, and the outer side of the housing 10 on the jig seat 14 in the middle faces upward.

[0041] Furthermore, on the transfer tray 13 and on one side of the fixture base 14, there are also a horizontal material position 18, a vertical material position one 17 and a vertical material position two 19 in sequence. A worm gear 100 is placed on the vertical material position two 19, and an end cover 101 is placed on the vertical material position one 17. The end cover 101 is assembled on one end of the worm gear 100. A worm gear 100 rotated to a horizontal state (with the end cover 101 already assembled) is placed on the horizontal material position 18.

[0042] The housing 10 has a through groove 15 for installing a sealing gasket 20. A foolproof groove 16 is fixed in the through groove 15 to cooperate with the gasket 20 and fix the gasket 20.

[0043] like Figure 4 , Figure 6 , Figure 7 As shown, at least one vibrating feeding plate 24 is installed on the feeding area 2 to feed the gasket 20. In this embodiment, two vibrating feeding plates 24 are provided to feed the gasket 20 at the same time.

[0044] A symmetrically distributed support frame is fixed on the feeding area 2. The support frame is correspondingly set with the vibrating feeding plate 24. An electric slide table 21 is fixed on one side of the support frame. A slider 22 is slidably mounted on the electric slide table 21. The slider 22 slides under the drive of the electric slide table 21. A cylinder 221 is fixedly mounted on the side of the slider 22. A movable seat 222 is slidably mounted on the output end of the cylinder 221. A cylinder 23 is fixedly mounted on the movable seat 222. A shaft 232 is fixedly connected to the output end of the cylinder 23 through the lower end of the movable seat 222.

[0045] The lower end of the movable seat 222 is fixedly provided with a sleeve 231, and guide shafts 233 are slidably provided on both sides of the sleeve 231. The guide shafts 233 are connected to the insertion shaft 232.

[0046] A transfer plate 25 is slidably provided at the discharge end of the vibrating feed plate 24. A storage groove is provided on the side of the transfer plate 25 facing the discharge end of the vibrating feed plate 24 for storing washers 20. A cylinder 26 is provided at one end of the transfer plate 25. The output end of the cylinder 26 is fixedly connected to one end of the transfer plate 25 to control the translation of the transfer plate 25.

[0047] Move the washer 20 below the insert shaft 232. Control the sleeve 231 and the cylinder 23 to move downwards via cylinder 221. The sleeve 231 is placed against the upper surface of the washer 20 on the transfer plate 25. Then, control the insert shaft 232 to move downwards via cylinder 23 and insert it into the washer 20. The inner support is fixed inside the washer 20, thus completing the removal of the washer 20.

[0048] A vision inspection instrument 27 is provided on one side of the transfer plate 25 to detect whether there is a shortage of material and the position of the gasket 20. A rotary motor 29 is fixed between the vision inspection instrument 27 and the conveyor belt 11. An assembly base 28 is provided between the rotary motor 29 and the vision inspection instrument 27. A swing arm is fixedly installed through the output end of the rotary motor 29. Pneumatic clamps 291 are fixedly connected to both ends of the swing arm.

[0049] By clamping the housing 10 with the pneumatic clamp 291 on the swing arm, the housing 10 is removed from the fixture seat 14 and moved to the assembly seat 28. Then, the washer 20 is moved to the assembly seat 28. The cylinder 221 controls the sleeve 231 and the cylinder 23 to move downward. The sleeve 231 moves downward, so that the washer 20 is sent into the through groove 15. After the cylinder 23 retracts the insert shaft 232, the fixing of the washer 20 is released. At this time, the sleeve 231 still fixes the washer 20 to complete the assembly of the washer 20. Then, the assembled housing 10 is removed by the swing arm and the pneumatic clamp 291 and the housing 10 is put back on the fixture seat 14.

[0050] like Figure 5 As shown, a pneumatic clamp 41 is fixedly installed at the output end of the robotic arm 2 4. The pneumatic clamp 41 clamps the end cover 101 and loads the end cover 101 onto the vertical material position 17.

[0051] like Figures 8-10 As shown, a cylinder 61 is fixedly installed on the top of the upright frame 6. The output end of the cylinder 61 faces downward and is fixedly connected to a gripper 62. A rotary motor 63 is fixedly installed on the upright frame 6. A swing arm 64 is fixedly installed on the rotary motor 63. Two pneumatic clamps 65 are fixedly installed at both ends of the swing arm 64. The two pneumatic clamps 65 simultaneously clamp the materials on the vertical material position 17 and the vertical material position 19.

[0052] An electric slide table 67 is fixed on the upright frame 6. A moving block is slidably mounted on the electric slide table 67. A vision inspection instrument 68, a temporary storage rack 69, and a clamping seat 66 are sequentially mounted on the moving block. The worm gear 100 and the end cap 101 are removed by two pneumatic clamps 65 and then placed on the temporary storage rack 69 and the clamping seat 66, so that the worm gear 100 is placed on the clamping seat 66 and the end cap 101 is placed on the temporary storage rack 69.

[0053] A sensor 60 is fixed on the stand 6 and located on one side of the rotary motor 63. It is used to identify the worm gear 100 sent to the clamping seat 66 and identify the position of the worm gear 100. Then, the moving block is controlled to move by the electric slide 67. The temporary storage rack 69 is first moved to the bottom of the cylinder 61. The gripper 62 is controlled by the cylinder 61 to move downward and remove the end cover 101 on the temporary storage rack 69.

[0054] Then, control the moving block to move in the opposite direction, so that the vision inspection instrument 2 68 moves below the gripper 62. The vision inspection instrument 2 68 identifies the position of the end cover 101. If the position of the end cover 101 is correct, control the moving block to move it until the clamping seat 66 is below the gripper 62. At this time, the worm gear 100 on the clamping seat 66 is aligned with the end cover 101. The output end of the cylinder 4 61 moves down to press the end cover 101 down and assemble it onto the worm gear 100, so that the end cover 101 and the worm gear 100 are assembled. The assembled worm gear 100 is then picked up by the pneumatic clamp 3 65 and placed back on the vertical material position 2 19.

[0055] like Figure 11 , Figure 12 As shown, cylinder 5 71 is horizontally arranged on the top of mounting bracket 7. Cylinder 6 72 is fixedly installed at the output end of cylinder 5 71. Cylinder 6 72 is vertically arranged, and its output end is fixedly connected to pneumatic clamp 4 73. Pneumatic clamp 4 73 clamps and moves the housing 10 on both sides of a fixture seat 14 and places it on rotating clamp 1 75.

[0056] Cylinder 74 and cylinder 8 76 are fixedly mounted on the mounting bracket 7. Rotary clamp 75 is fixedly mounted on the output end of cylinder 74 to clamp both ends of pneumatic clamp 4 73. Then, the housing 10 is controlled to rotate 180 degrees, so that the inner side of the housing 10 faces down and is placed on the fixture seat 14 in the middle position.

[0057] A rotating clamp 77 is fixedly installed at the output end of cylinder 8 76. The rotating clamp 77 is used to clamp the worm gear 100 with the end cover 101 assembled, and rotate it to adjust it from a vertical state to a horizontal state, and place it on the horizontal material position 18.

[0058] A batch clamp 51 is fixed at the output end of the robotic arm 35 to clamp the worm gear 100, the two end caps 101 and the worm together and transfer them to the pre-loading tray 52, and then send them to the automatic gearbox assembly machine to improve the assembly accuracy and efficiency of the assembly machine for gearbox assembly.

[0059] The working principle is as follows:

[0060] The gearbox parts are pre-assembled by an automated assembly machine. Small parts are assembled, and washers 20 are assembled onto housing 10. The washers 20 on the upper and lower housings 10 are assembled. The end cap 101 is loaded and connected to the end of the worm gear 100. Then, the position of one housing 10 is adjusted and the angle of the worm gear 100 is switched. Finally, all parts are fixed in the pre-assembly tray 52 to complete the pre-assembly of parts, simplifying the difficulty of subsequent automated assembly.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An automated assembly machine for pre-assembled gearboxes, the gearbox comprising upper and lower housings, a worm gear, and a worm shaft, the automated assembly machine including a machine base, characterized in that, The machine is equipped with a conveyor belt, and the conveyor belt is equipped with a transfer tray for storing gearbox parts; A mounting frame is provided on one side of the conveyor belt. A cylinder five is horizontally mounted on the top of the mounting frame. A cylinder six is ​​fixedly connected to the output end of the cylinder five. A pneumatic clamp four is fixedly mounted on the output end of the cylinder six. A cylinder seven and a cylinder eight are fixedly mounted on the mounting frame. A rotating clamp one is fixedly mounted on the output end of the cylinder seven. A rotating clamp two is fixedly mounted on the output end of the cylinder eight. The transfer tray is arrayed with fixture seats for placing the housing in sequence. On one side of the fixture seats, the transfer tray is also provided with a horizontal material position for horizontally placing the worm gear, a vertical material position one for placing the end cap, and a vertical material position two for vertically placing the worm gear. One end of the machine is equipped with a loading area, and the other side is equipped with robotic arm one, robotic arm two and robotic arm three in sequence. A stand is provided between robotic arm three and robotic arm two. A batch clamp is fixedly provided at the output end of robotic arm three. It also includes a second swing arm, with two pneumatic clamps fixedly installed at both ends of the second swing arm; An electric slide table two is fixedly mounted on the upright frame. A moving block slides on the electric slide table two. A vision inspection instrument two, a temporary storage rack for placing the end cap, and a clamping seat for fixing the worm gear are sequentially mounted on the moving block. A sensor is fixedly mounted on the upright frame and located on one side of the rotary motor two. This sensor identifies the position of the worm gear delivered to the clamping seat. The electric slide table two controls the moving block to translate, first moving the temporary storage rack below the cylinder four, and then the cylinder four controls the clamping... The claw moves downward to remove the end cap from the temporary storage rack; the moving block is controlled to move in the opposite direction, so that the second vision inspection instrument moves below the gripper. The position of the end cap is identified by the second vision inspection instrument. If the position of the end cap is correct, the moving block is controlled to move until the clamping seat is below the gripper. At this time, the worm gear on the clamping seat is aligned with the end cap. The output end of the fourth cylinder moves down to press the end cap down and assemble it onto the worm gear, so that the end cap and the worm gear are assembled. The assembled worm gear is then picked up by the third pneumatic clamp and placed back on the vertical material position two. It also includes a swing arm, with pneumatic clamps fixedly installed at both ends of the swing arm for removing parts from the fixture. By clamping the housing with the pneumatic clamps on the swing arm, the housing is removed from the fixture and moved to the assembly seat. Then, the washer is moved to the assembly seat to complete the assembly of the washer. Then, the assembled housing is removed by the swing arm and the pneumatic clamps and placed back on the fixture. The pneumatic clamps clamp and move the housing on both sides of a fixture seat, placing it on a rotating fixture. Rotary fixture one controls the rotation of the housing to make the inner side of the housing face down and place it on the fixture seat in the middle position; The second rotating clamp is used to clamp the worm gear with the end cap assembled, rotate it to adjust it from a vertical state to a horizontal state, and place it on a horizontal material position.

2. The automated assembly machine for pre-assembled gearboxes according to claim 1, characterized in that, Several limit cylinders for fixing the transfer tray are installed on one side of the conveyor belt, and the mounting frame is located on the opposite side of the upright.

3. The automated assembly machine for pre-assembled gearboxes according to claim 2, characterized in that, The housing has a through groove, in which a gasket for sealing is installed. A foolproof groove is fixed in the through groove to cooperate with the gasket.

4. The automated assembly machine for pre-assembled gearboxes according to claim 3, characterized in that, At least one vibrating feeding plate for feeding washers is installed in the feeding area. Symmetrically distributed support frames are fixed in the feeding area. An electric slide table is fixed on one side of the support frame. A slider is slidably mounted on the electric slide table. A cylinder is fixed on the side of the slider. A movable seat is slidably mounted on the output end of the cylinder. A cylinder is fixed on the movable seat. A shaft is fixed on the output end of the cylinder. A sleeve is fixedly provided at the lower end of the movable seat, and guide shafts are slidably provided on both sides of the sleeve, with the guide shafts connected to the insertion shaft.

5. The automated assembly machine for pre-assembled gearboxes according to claim 4, characterized in that, The vibrating feeding plate has a sliding transfer plate at the discharge end. A storage trough is provided on one side of the transfer plate. A cylinder is provided at one end of the transfer plate. The output end of the cylinder is connected to one end of the transfer plate. A vision inspection instrument is provided on one side of the transfer plate.

6. The automated assembly machine for pre-assembled gearboxes according to claim 5, characterized in that, A rotary motor is fixedly installed between the visual inspection instrument and the conveyor belt. An assembly base is provided between the rotary motor and the visual inspection instrument. A swing arm is connected to the output end of the rotary motor. Pneumatic clamps for removing parts from the fixture base are fixedly installed at both ends of the swing arm.

7. The automated assembly machine for pre-assembled gearboxes according to claim 6, characterized in that, The output end of the robotic arm is fixedly equipped with a pneumatic clamp for loading end caps.

8. The automated assembly machine for pre-assembled gearboxes according to claim 7, characterized in that, A cylinder four is fixedly installed on the top of the upright frame. A gripper is fixedly connected to the output end of the cylinder four. A rotary motor two is fixedly installed on the upright frame. A swing arm two is fixedly installed on the rotary motor two.