Automatic assembly equipment and assembly process for powder metallurgy output gear workpiece

Abstract

The present application relates to the technical field of gear workpiece assembly, and in particular to an automatic assembly device and assembly process of a powder metallurgy output gear workpiece. In the first aspect, an automatic assembly device of a powder metallurgy output gear workpiece comprises: a grease coating mechanism: the grease coating mechanism comprises a dispensing component and a mounting seat, the dispensing component is arranged on one side of the mounting seat, a pressing component: the pressing component comprises a base plate, the base plate is arranged on the top of the mounting seat, and a push-pull driving member is arranged on one side of the base plate, a pressing component: the pressing component comprises a pressing driving member and a pressing block, the pressing block is arranged on the top of the base plate, and the output end of the pressing driving member is assembled with the top of the pressing block. In the second aspect, an automatic assembly process of a powder metallurgy output gear workpiece comprises the steps: S1: assembling the tolerance ring and the gear plate, S2: grease coating the output shaft, S3: assembling the output shaft, the tolerance ring and the gear plate, which can improve the working efficiency of the output gear assembly.

Description

Technical Field

[0001] The present application relates to the technical field of gear workpiece assembly, and in particular to an automatic assembly device and an assembly process for a powder metallurgy output gear workpiece. Background Art

[0002] The output gear workpiece generally includes an output shaft, a tolerance ring and a gear plate. In the existing technology, the assembly process needs to be carried out step by step: first, grease is applied through a grease coating device, then it is transferred to a first pressing device to press the tolerance ring, and finally it is transferred to a second pressing device to press the gear plate.

[0003] This process has the following defects: 1) The time consumed in loading, unloading and transferring materials between processes accounts for 40% of the total assembly time; 2) The positioning errors accumulated due to step-by-step pressing result in low assembly accuracy; 3) It is impossible to achieve synchronous positioning of multiple components.

[0004] Therefore, there is a need for an automatic assembly equipment that can integrate multiple processes and achieve synchronous assembly. Summary of the Invention

[0005] In order to improve the working efficiency of output gear assembly, the present application provides an automatic assembly device and assembly process for a powder metallurgy output gear workpiece.

[0006] In a first aspect, the present application provides an automatic assembly device for a powder metallurgy output gear workpiece, which adopts the following technical solution:

[0007] An automatic assembly device for a powder metallurgy output gear workpiece, comprising:

[0008] Grease coating mechanism: The grease coating mechanism includes a dispensing assembly and a mounting seat. The dispensing assembly is arranged on one side of the mounting seat. A placement groove is provided on the top surface of the mounting seat. The bottom of the output shaft is adapted to be inserted into the placement groove. The dispensing assembly is used to apply grease to the outer wall of the output shaft.

[0009] The pressing assembly: The pressing assembly includes a base plate, which is arranged on the top of the mounting seat, and the tolerance ring is placed on the top surface of the base plate. A push-pull driving member is provided on one side of the base plate, and the push-pull driving member is used to drive the base plate to move; the pressing assembly: The pressing assembly includes a pressing driving member and a pressing block, and the pressing block is arranged on the top of the base plate. The output end of the pressing driving member is assembled with the top of the pressing block. A connecting groove is provided on the bottom surface of the pressing block, and the diameter of the connecting groove is adapted to the maximum diameter of the gear plate. The gear plate is clamped in the connecting groove. A slot is provided in the middle of the pressing block, and the bottom of the slot passes through. The diameter of the slot is adapted to the diameter of the mounting slot.

[0010] By adopting the above technical solution, the tolerance ring is placed on the top surface of the base plate, the gear plate is clamped in the connecting groove, the downward driving component is started, the tolerance ring is pressed into the inner wall of the gear plate, and the installation of the tolerance ring and the gear plate is completed. At the same time, the dispensing component is started to apply grease to the outer wall of the output shaft, and then the push-pull driving component is started. The push-pull driving component pulls the base plate to move, and then the downward driving component is started. The downward driving component drives the pressing block to move downward, and the output shaft is assembled into the tolerance ring, thereby completing the assembly of the output gear workpiece.

[0011] Compared with the existing technology, the present application can save the time of intermediate steps of loading, unloading and transferring, and the grease coating of the output shaft and the assembly of the tolerance ring and the gear plate can be carried out simultaneously. Therefore, compared with the existing technology, the present application can save the time of one step, thereby reducing the time spent on completing the assembly of an output gear workpiece and improving the efficiency of the output gear workpiece assembly.

[0012] Preferably, the pressing assembly further includes a lifting drive member, the output end of the lifting drive member is assembled with the bottom of the base plate, and the lifting drive member is used to drive the base plate to rise and fall.

[0013] By adopting the above-mentioned technical solution, the downward driving member and the lifting driving member are started, the downward driving member drives the pressure block to move downward, and the lifting driving member drives the bottom plate to move upward. The route where the bottom of the gear plate meets the top of the tolerance ring and the installation of the tolerance ring and the gear plate is the installation distance. The present application drives the gear plate and the tolerance ring to move respectively through the downward driving member and the lifting driving member, so that the gear plate and the tolerance ring move together to complete the installation distance. Compared with the situation where one of them moves to complete the installation distance, the present application can save the time to complete the installation distance, thereby further improving work efficiency. At the same time, it can also reduce the damage to the tolerance ring and the gear plate.

[0014] Preferably, a movable groove is provided inside the pressing block, the movable groove is located at the top of the connecting groove, the diameter of the movable groove is larger than the diameter of the connecting groove, and a telescopic component is provided inside the pressing block, and the telescopic component is located in the movable groove.

[0015] By adopting the above technical solution, when the protruding part of the outer wall of the output shaft passes through the top of the tolerance ring, the protruding part of the outer wall of the output shaft enters the slot. Under the action of the telescopic drive assembly, the protruding part of the outer wall of the output shaft can drive the telescopic drive assembly to extend and retract, providing space for the protruding part of the outer wall of the output shaft, reducing the damage of the protruding part of the outer wall of the output shaft, and the top surface of the tolerance ring and the top surface of the gear plate part are abutted with the bottom surface of the protruding part of the outer wall of the output shaft, so that when the downward driving part moves upward, the protruding part of the outer wall of the output shaft can move the tolerance ring and the gear plate away from the pressing block, making it convenient to cut the assembled output gear workpiece.

[0016] Preferably, the telescopic assembly includes a first spring and a telescopic plate, one end of the telescopic plate is inserted into the movable groove, one end of the first spring is connected to the inner wall of the pressure block, and the other end of the first spring is connected to the outer wall of the telescopic plate, and the inner wall of the telescopic plate and the inner wall of the pressure block are on the same plane.

[0017] By adopting the above technical solution, the protruding part of the outer wall of the output shaft squeezes the inner wall of the telescopic plate, pushing the multiple compression plates to move away from the center part of the pressure block. At this time, the first spring is in a compressed state, the top surface of the tolerance ring abuts against the bottom surface of the protruding part of the output shaft, and the top surface of the inner part of the gear plate abuts against the bottom surface of the protruding part of the output shaft. After that, the downward driving member is started, and the downward driving member drives the pressure block to move upward. The protruding part of the output shaft applies a downward force to the tolerance ring and the gear plate, so that the gear plate moves away from the pressure block. After that, the first spring restores its deformation, and the first spring drives the telescopic plate to return to its original position.

[0018] Preferably, a rotation driving member is assembled on the bottom surface of the mounting seat.

[0019] By adopting the above technical solution, grease is slowly sprayed out from the output end of the dispensing part. At the same time, the rotary driving part is started, and the rotary driving part rotates to drive the rotating shaft to rotate at a set speed. The rotating shaft drives the mounting seat to rotate, thereby driving the output shaft inserted into the mounting seat to rotate. As the output shaft rotates, the grease sprayed by the dispensing machine can be evenly coated on the outer wall of the output shaft.

[0020] Preferably, it includes a frame, the mounting seat includes a rotating part and a moving part, the rotating part is rotatably connected in the frame, the rotating drive member is connected to the bottom surface of the rotating part, the moving part is slidably connected in the rotating part, the placement groove is located at the top of the moving part, and a second spring is installed on the bottom surface of the rotating part, and the top end of the second spring is connected to the bottom surface of the moving part.

[0021] By adopting the above technical solution, when the tolerance ring is sleeved on the output shaft, the downward pressure driving member drives the tolerance ring to move downward. When the tolerance ring and the gear plate just contact the top surface of the protruding part of the outer wall of the output shaft, the tolerance ring and the gear plate exert a downward force on the output shaft, thereby causing the moving part to move downward. Under the action of the second spring, the force when the tolerance ring and the gear plate just contact the output shaft can be relieved, and the instantaneous force can be buffered, thereby reducing the damage of the output shaft, the tolerance ring and the gear plate by the instantaneous impact force. At the same time, it can also protect the internal structures such as the frame and the mounting seat from impact damage.

[0022] Preferably, a sliding groove is provided inside the movable part, a guide rod is provided inside the movable part, the bottom surface of the guide rod is fixed to the bottom surface inside the rotating part, the guide rod is movably inserted into the sliding groove, a distance is provided between the top surface of the guide rod and the top surface of the sliding groove, and the second spring is sleeved on the outer wall of the bottom of the guide rod.

[0023] By adopting the above technical solution, the movement of the second spring can be guided under the action of the guide rod. During the compression of the second spring, the tilt of the second spring is reduced, thereby reducing the damage to the second spring, and the second spring can provide a more stable buffering force to the moving part.

[0024] Preferably, a movable groove is provided on the inner wall of the rotating part, and the movable groove is vertically arranged. A movable block is fixed on the outer wall of the movable part, and the movable block is movably inserted into the movable groove.

[0025] By adopting the above technical solution, under the action of the moving block and the moving groove, the moving part and the rotating part are slidably connected, and the moving block also plays a limiting role, thereby reducing the situation where the moving part is lifted.

[0026] Preferably, the dispensing assembly includes a pressure barrel and a dispensing component, the dispensing component is arranged on one side of the mounting seat, the pressure barrel is arranged on the top of the dispensing component, the output end of the pressure barrel is connected to an output tube, and the output tube is connected to the input end of the dispensing component at one end away from the pressure barrel.

[0027] By adopting the above technical solution, the pressure barrel is started, and the grease in the pressure barrel can enter the dispensing component through the output tube cavity.

[0028] In a second aspect, the present application provides an automatic assembly process for a powder metallurgy output gear workpiece, comprising the following steps: S1: assembling a tolerance ring and a gear plate: placing the tolerance ring on the top surface of a base plate, clamping the gear plate in a connecting groove, abutting the top surface of the gear plate against the bottom surface of a telescopic plate, starting a downward pressure driving member, pressing the tolerance ring into the inner wall of the gear plate until the top surface of the tolerance ring abuts against the bottom surface of the telescopic plate, thereby completing the installation of the tolerance ring and the gear plate;

[0029] S2: Grease the output shaft: Insert the bottom of the output shaft into the placement slot, start the dispensing component, and extend the output end of the dispensing component toward one end of the output shaft. Grease is slowly sprayed out from the output end of the dispensing component. Start the rotating drive component, and the rotating drive component rotates to drive the mounting seat to rotate, driving the output shaft inserted into the mounting seat to rotate, and evenly coating the grease sprayed by the dispensing component on the outer wall of the output shaft. After the dispensing component completes dispensing, the output end of the dispensing component returns to its original position. S1 and S2 are performed synchronously.

[0030] S3: assembly of output shaft, tolerance ring and gear plate: start the push-pull drive member, the push-pull drive member pulls the bottom plate to move, and then starts the pressing drive member, the pressing drive member drives the pressing block to move downward, the top of the output shaft enters the slot, the protruding part of the output shaft outer wall enters the tolerance ring, continues to squeeze downward, the tolerance ring is installed in the installation slot, the protruding part of the output shaft outer wall squeezes the inner wall of the telescopic plate, pushing the compression plate to move away from the center part of the pressing block, the top surface of the tolerance ring abuts the bottom surface of the protruding part of the output shaft, the top surface of the inner part of the gear plate abuts the bottom surface of the protruding part of the output shaft, start the pressing drive member, the pressing drive member drives the pressing block to move upward, the protruding part of the output shaft applies a downward force to the tolerance ring and the gear plate, so that the gear plate is away from the pressing block, and the pressing drive member drives the pressing block to return to its original position. After unloading the installed output gear workpiece, start the push-pull drive member, and after the push-pull drive member restores the installation box to its original position, the next output gear workpiece is assembled.

[0031] By adopting the above technical solution, compared with the existing technology, the present application can save the time of intermediate steps of loading, unloading and transferring, and the grease coating of the output shaft and the assembly of the tolerance ring and the gear plate can be carried out simultaneously. Therefore, compared with the existing technology, the present application can save the time of one step, thereby reducing the time spent on completing the assembly of an output gear workpiece and improving the efficiency of the output gear workpiece assembly.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. Place the tolerance ring on the top surface of the base plate, clip the gear plate into the connecting groove, start the downward drive component, press the tolerance ring into the inner wall of the gear plate, and complete the installation of the tolerance ring and the gear plate. At the same time, start the dispensing component to apply grease to the outer wall of the output shaft, then start the push-pull drive component, the push-pull drive component pulls the base plate to move, and then start the downward drive component, the downward drive component drives the pressing block to move downward, and assemble the output shaft into the tolerance ring, thereby completing the assembly of the output gear workpiece.

[0034] Compared with the existing technology, the present application can save the time of intermediate steps of loading, unloading and transferring, and the grease coating of the output shaft and the assembly of the tolerance ring and the gear plate can be carried out simultaneously. Therefore, compared with the existing technology, the present application can save the time of one step, thereby reducing the time spent on completing the assembly of an output gear workpiece and improving the efficiency of the output gear workpiece assembly.

[0035] 2. When the tolerance ring is sleeved on the output shaft, the downward driving member drives the tolerance ring to move downward. When the tolerance ring and the gear plate just contact the top surface of the protruding part of the outer wall of the output shaft, the tolerance ring and the gear plate exert a downward force on the output shaft, thereby causing the moving part to move downward. Under the action of the second spring, the force when the tolerance ring and the gear plate just contact the output shaft can be unloaded, and the instantaneous force can be buffered, thereby reducing the damage of the output shaft, the tolerance ring and the gear plate by the instantaneous impact force. At the same time, it can also protect the internal structures such as the frame and the mounting seat from impact damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0037] Figure 2 It is a cross-sectional view of an embodiment of the present application.

[0038] Figure 3 yes Figure 2 Magnified view of B.

[0039] Figure 4 yes Figure 1 A magnified view of center.

[0040] Figure 5 yes Figure 2 Enlarged view of C in the middle.

[0041] Explanation of reference numerals: 1, frame; 11, support frame; 12, mounting frame; 121, circulation slot; 13, fixing frame; 2, grease coating mechanism; 21, dispensing assembly; 211, pressure barrel; 212, dispensing machine; 22, motor; 23, rotating shaft; 24, mounting seat; 241, rotating portion; 242, moving portion; 243, moving slot; 244, moving block; 245, sliding slot; 246, guide rod; 247, second spring; 3 , pressure assembly; 31. Lifting cylinder; 32. Storage box; 321. Side panel; 322. Bottom plate; 323. Mounting column; 33. Mounting box; 34. Push-pull cylinder; 4. Down-pressing assembly; 41. Pneumatic cylinder; 42. Pressure block; 421. Connecting groove; 422. Slot; 423. Movable groove; 43. Telescopic assembly; 431. First spring; 432. Telescopic plate; 5. Output shaft; 51. Mounting groove; 6. Tolerance ring; 7. Gear plate. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-5 This application is described in further detail.

[0043] The embodiment of the present application discloses an automatic assembly device for a powder metallurgy output gear workpiece.

[0044] Reference Figure 1 and Figure 2, an automatic assembly equipment for powder metallurgy output gear workpiece, including a frame 1, a grease coating mechanism 2 is provided on the frame 1, the grease coating mechanism 2 includes a dispensing component 21, the dispensing component 21 includes a pressure barrel 211 and a dispensing part, in the embodiment of the present application, the dispensing part is a dispensing machine 212, a support frame 11 is fixed to one end of the top surface of the frame 1, the pressure barrel 211 is installed on the top of the support frame 11, grease is installed in the pressure barrel 211, the output end of the pressure barrel 211 is connected to an output pipe, the dispensing machine 212 is installed on the top surface of the frame 1, the dispensing machine 212 is located at the bottom of the pressure barrel 211, the output pipe is connected to the input end of the dispensing machine 212 at one end away from the pressure barrel 211, and the pressure barrel 211 is started. The grease in the pressure barrel 211 can enter the dispensing machine 212 through the output pipe cavity.

[0045] Reference Figure 2 and Figure 3 The grease coating mechanism 2 also includes a rotation drive assembly, which includes a rotation drive member, a rotating shaft 23 and a mounting seat 24. In the embodiment of the present application, the rotation drive member is a motor 22, which is installed inside the frame 1. The rotating shaft 23 is rotatably connected to the frame 1. The output end of the motor 22 is assembled with the bottom end of the rotating shaft 23. Correspondingly, the mounting seat 24 is rotatably connected to the frame 1. The top surface of the rotating shaft 23 is assembled with the bottom surface of the mounting seat 24. A placement groove is provided on the top surface of the mounting seat 24. The shape of the placement groove is adapted to the shape of the bottom of the output shaft 5, so that the bottom of the output shaft 5 can be adapted to be inserted into the placement groove, and the bottom surface of the output shaft 5 is in contact with the top surface of the mounting seat 24.

[0046] An installation groove 51 is provided on the outer wall of the output shaft 5, and the installation groove 51 is located at the top of the mounting seat 24. The installation groove 51 is aligned with the output end of the dispensing machine 212. When grease needs to be applied to the installation groove 51, the bottom of the output shaft 5 is adapted and inserted into the placement groove. After that, the dispensing machine 212 is started, and the output end of the dispensing machine 212 extends toward one end of the output shaft 5, so that the output end of the dispensing machine 212 is located in the installation groove 51, and grease is slowly sprayed out from the output end of the dispensing machine 212. At the same time, the motor 22 is started, and the rotation of the motor 22 drives the rotating shaft 23 to rotate at a set speed. The rotating shaft 23 drives the mounting seat 24 to rotate, thereby driving the output shaft 5 inserted into the mounting seat 24 to rotate. As the output shaft 5 rotates, the grease sprayed by the dispensing machine 212 can be evenly coated on the outer wall of the output shaft 5. After the dispensing machine 212 completes dispensing, the output end of the dispensing machine 212 returns to its original position.

[0047] Reference Figure 1 and Figure 4, a mounting bracket 12 is fixed to the top surface of the frame 1, and a flow slot 121 is opened through the top surface of the mounting bracket 12, and the flow slot 121 is aligned with the top of the mounting seat 24, and a pressing mechanism is provided on the top of the mounting bracket 12, and the pressing mechanism includes a pressing component 3, and the pressing component 3 includes a lifting drive member and a storage box 32. In the embodiment of the present application, the lifting drive member is a lifting cylinder 31, and the top surface of the mounting bracket 12 is slidably connected to the mounting box 33. The lifting cylinder 31 is installed in the mounting box 33, and the storage box 32 includes a side plate 321 and a bottom plate 322. The side plate 321 is fixed to the top surface of the mounting box 33, and the bottom plate 322 is slidably connected to the inner wall of the side plate 321. The output end of the lifting cylinder 31 extends out of the top surface of the mounting box 33, and the output end of the lifting cylinder 31 is assembled with the bottom surface of the bottom plate 322. A mounting column 323 is fixed in the middle of the top surface of the bottom plate 322 (refer to Figure 5 ), the diameter of the mounting column 323 is adapted to the inner wall diameter of the tolerance ring 6, the tolerance ring 6 is movably sleeved on the outer wall of the mounting column 323, and the bottom surface of the tolerance ring 6 is in contact with the top surface of the base plate 322.

[0048] Reference Figure 2 and Figure 5 The pressing mechanism also includes a pressing component 4, which includes a pressing drive and a pressing block 42. In the embodiment of the present application, the pressing drive is a pneumatic cylinder 41. A fixing bracket 13 is fixed to the top of the frame 1. The fixing bracket 13 is located on one side of the mounting bracket 12. The pneumatic cylinder 41 is mounted on the top surface of the fixing bracket 13. The output end of the pressing cylinder extends out of the top surface of the fixing bracket 13. The top surface of the pressing block 42 is assembled with the output end of the pneumatic cylinder 41. A connecting groove 421 is provided on the bottom surface of the pressing block 42. The diameter of the connecting groove 421 is adapted to the maximum diameter of the gear plate 7. The top of the gear plate 7 is adapted to be inserted into the connecting groove 421. The inner wall of the pressing block 42 is pressed against the outer wall of the gear plate 7, thereby clamping the gear plate 7 in the pressing block 42, making it difficult for the gear plate 7 to fall when it is only subjected to its own gravity.

[0049] Correspondingly, a slot 422 is provided in the middle of the pressing block 42, and the slot 422 is vertically arranged. The diameter of the slot 422 is adapted to the diameter of the mounting slot 51, and the bottom of the slot 422 is passed through. The slot 422 is connected to the connecting slot 421, and a movable slot 423 is provided inside the pressing block 42. The movable slot 423 is located at the top of the connecting slot 421, and the diameter of the movable slot 423 is larger than the diameter of the connecting slot 421. A telescopic component 43 is provided in the pressing block 42, and the telescopic component 43 includes a first spring 431 and a telescopic plate 432. One end of the telescopic plate 432 is inserted into the movable slot 423 away from the center side of the pressing block 42, thereby movably connecting the telescopic plate 432 to the Inside the pressure block 42, one end of the first spring 431 is fixed to the inner wall of the pressure block 42, and the other end of the first spring 431 is connected to the outer wall of the telescopic plate 432. When the first spring 431 is not deformed, the inner wall of the telescopic plate 432 and the inner wall of the pressure block 42 are on the same plane. There are multiple telescopic components 43, and the multiple telescopic components 43 are distributed along the circumference of the inner wall of the pressure block 42. When the multiple first springs 431 are not deformed, the inner walls of the multiple telescopic plates 432 are combined to form a telescopic groove, and the diameter of the telescopic groove is consistent with the diameter of the slot 422. When the gear plate 7 is inserted into the connecting groove 421, the top surface of the gear plate 7 is in contact with the bottom surfaces of the multiple telescopic plates 432.

[0050] When the gear plate 7 is in the state of being moved up and down, the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate 7 is in the state of being moved down, and the gear plate

[0051] The route from the bottom of the gear plate 7 to the top of the tolerance ring 6 where the tolerance ring 6 and the gear plate 7 are installed is the installation distance. This application drives the gear plate 7 and the tolerance ring 6 to move respectively through the pneumatic cylinder 41 and the lifting cylinder 31, so that the gear plate 7 and the tolerance ring 6 move together to complete the installation distance. Compared with the situation where only one of them moves to complete the installation distance, this application can save the time to complete the installation distance, thereby improving work efficiency. At the same time, it can also reduce the damage to the tolerance ring 6 and the gear plate 7.

[0052] Reference Figure 1A push-pull drive component is installed on the top surface of the mounting frame 12 at one end away from the mounting box 33. In the embodiment of the present application, the push-pull drive component is a push-pull cylinder 34. The output end of the push-pull cylinder 34 is assembled with one side of the mounting phase. When the bottom plate 322 returns to its original position, the push-pull cylinder 34 is started. The push-pull cylinder 34 pulls the mounting box 33 to move, thereby driving the mounting box 33 away from the circulation groove 121. After that, the pneumatic cylinder 41 is started again. The pneumatic cylinder 41 drives the pressure block 42 to move downward, thereby driving the installed gear plate 7 and the tolerance ring 6 to move downward. At the same time, the outer wall of the output shaft 5 is also coated with grease.

[0053] The pneumatic cylinder 41 drives the pressing block 42 to pass through the circulation groove 121. After that, the top of the output shaft 5 enters the interior of the tolerance ring 6. The tolerance ring 6 continues to move downward, so that the top of the output shaft 5 enters the slot 422, and the protruding portion of the outer wall of the output shaft 5 enters the tolerance ring 6. It continues to squeeze downward, and the protruding portion of the outer wall of the output shaft 5 is squeezed through the top surface of the tolerance ring 6, so that the tolerance ring 6 is installed in the installation groove 51. At the same time, the protruding portion of the outer wall of the output shaft 5 squeezes the inner wall of the telescopic plate 432, pushing the multiple compression plates to move away from the center of the pressing block 42. At this time, the first spring 431 is in a compressed state, and the top surface of the tolerance ring 6 and the protruding portion of the output shaft 5 are in contact with each other. The bottom surfaces abut against each other, and the top surface of the inner part of the gear plate 7 abuts against the bottom surface of the protruding part of the output shaft 5. Then, the pneumatic cylinder 41 is started, and the pneumatic cylinder 41 drives the pressing block 42 to move upward. The protruding part of the output shaft 5 applies a downward force to the tolerance ring 6 and the gear plate 7, so that the gear plate 7 moves away from the pressing block 42. Then, the first spring 431 restores its deformation, and the first spring 431 drives the telescopic plate 432 to return to its original position. The pneumatic cylinder 41 drives the pressing block 42 to return to its original position. After the installed output gear workpiece is unloaded, the push-pull cylinder 34 is started. After the push-pull cylinder 34 restores the installation box 33 to its original position, the next output gear workpiece is assembled.

[0054] Compared with the prior art, the present application can save the time of intermediate steps of loading, unloading and transferring, and the grease coating of the output shaft 5 and the assembly of the tolerance ring 6 and the gear plate 7 can be carried out simultaneously. Therefore, compared with the prior art, the present application can save the time of one step, thereby reducing the time spent on completing the assembly of an output gear workpiece and improving the efficiency of the output gear workpiece assembly.

[0055] The mounting base 24 includes a rotating part 241 and a moving part 242. The rotating part 241 is rotatably connected to the frame 1. The output end of the motor 22 is assembled with the bottom surface of the rotating part 241. A moving groove 243 is opened on the inner wall of the rotating part 241. The moving groove 243 is vertically arranged. There are multiple moving grooves 243. Multiple moving grooves 243 are arranged along the circumference of the inner wall of the rotating part 241. Correspondingly, a moving block 244 is fixed to the outer wall of the moving part 242. The number of moving blocks 244 is adapted to the number of moving grooves 243. Multiple moving blocks 244 are movably inserted into the moving grooves 243 close to them, and the movable blocks can move up and down along the long side direction of the moving grooves 243.

[0056] Reference Figure 2 and Figure 3 The movable portion 242 is provided with a sliding groove 245, which is vertically arranged and passes through the bottom of the sliding groove 245. The number of sliding grooves 245 depends on the specific situation. In the embodiment of the present application, there are four sliding grooves 245, which are evenly distributed along the circumference of the movable portion 242. Correspondingly, a guide rod 246 is provided inside the movable portion 242, and there are four guide rods 246. The four guide rods 246 are movably inserted into the sliding grooves 245 adjacent to them, and the bottom surfaces of the guide rods 246 are fixed to the inner bottom surface of the rotating portion 241. A gap is provided between the top surfaces of the guide rods 246 and the top surfaces of the sliding grooves 245. A force unloading space is provided between the bottom surface of the movable portion 242 and the inner bottom surface of the rotating portion 241. The outer walls of the four guide rods 246 are respectively sleeved with second springs 247, and the second springs 247 are located in the force unloading space. The bottom surface of the second spring 247 abuts against the inner bottom surface of the rotating portion 241, and the top surface of the second spring 247 abuts against the bottom surface of the movable portion 242.

[0057] When the tolerance ring 6 is sleeved on the output shaft 5, the pneumatic cylinder 41 drives the tolerance ring 6 to move downward. When the tolerance ring 6 and the gear plate 7 just contact the top surface of the protruding part of the outer wall of the output shaft 5, the tolerance ring 6 and the gear plate 7 exert a downward force on the output shaft 5, thereby causing the moving part 242 to move downward. Under the action of the second spring 247, the force when the tolerance ring 6 and the gear plate 7 just contact the output shaft 5 can be unloaded, and the instantaneous force can be buffered, thereby reducing the situation where the output shaft 5, the tolerance ring 6 and the gear plate 7 are damaged by the instantaneous impact force. At the same time, it can also protect the internal structures such as the frame 1 and the mounting seat 24 from impact damage.

[0058] The embodiment of the present application also discloses an automatic assembly process for a powder metallurgy output gear workpiece.

[0059] Reference Figure 1 , an automatic assembly process for a powder metallurgy output gear workpiece, comprising the following steps:

[0060] S1: Assembly of tolerance ring and gear plate: The tolerance ring 6 is movably sleeved on the outer wall of the mounting column 323, and then the top of the gear plate 7 is clamped in the connecting groove 421, and the top surface of the gear plate 7 is in contact with the bottom surfaces of multiple telescopic plates 432. After that, the pneumatic cylinder 41 and the lifting cylinder 31 are started, and the pneumatic cylinder 41 drives the pressing block 42 to move downward, and the lifting cylinder 31 drives the bottom plate 322 to move upward along the inner wall of the side plate 321, thereby pressing the tolerance ring 6 into the inner wall of the gear plate 7 until the top surface of the tolerance ring 6 is in contact with the bottom surface of the telescopic plate 432, completing the installation of the tolerance ring 6 and the gear plate 7. After that, the lifting cylinder 31 is started again, and the lifting cylinder 31 drives the bottom plate 322 to move downward, thereby restoring the bottom plate 322 to its original position, and the installed tolerance ring 6 and gear plate 7 are clamped in the pressing block 42.

[0061] S2: Grease coating on the output shaft: Insert the bottom of the output shaft 5 into the placement groove. After that, the dispensing machine 212 is started, and the output end of the dispensing machine 212 extends to one end of the output shaft 5, so that the output end of the dispensing machine 212 is located in the mounting groove 51. Grease is slowly sprayed out from the output end of the dispensing machine 212. At the same time, the motor 22 is started, and the rotation of the motor 22 drives the rotating shaft 23 to rotate at a set speed. The rotating shaft 23 drives the mounting seat 24 to rotate, thereby driving the output shaft 5 inserted into the mounting seat 24 to rotate. As the output shaft 5 rotates, the grease sprayed by the dispensing machine 212 can be evenly coated on the outer wall of the output shaft 5. After the dispensing machine 212 completes the dispensing, the output end of the dispensing machine 212 returns to its original position. S1 and S2 are performed synchronously.

[0062] S3: Assembly of output shaft, tolerance ring and gear plate: When the bottom plate 322 returns to its original position, the push-pull cylinder 34 is started, and the push-pull cylinder 34 pulls the installation box 33 to move, thereby driving the installation box 33 away from the circulation slot 121. After that, the pneumatic cylinder 41 is started again, and the pneumatic cylinder 41 drives the pressing block 42 to move downward, thereby driving the installed gear plate 7 and the tolerance ring 6 to move downward, and the top of the output shaft 5 enters the interior of the tolerance ring 6. The tolerance ring 6 continues to move downward, so that the top of the output shaft 5 enters the slot 422, and the protruding part of the outer wall of the output shaft 5 enters the tolerance ring 6. Continue to squeeze downward, squeeze the protruding part of the outer wall of the output shaft 5 through the top surface of the tolerance ring 6, thereby installing the tolerance ring 6 into the installation slot 51. At the same time, the protruding part of the outer wall of the output shaft 5 squeezes the inner wall of the telescopic plate 432, pushing multiple The compression plate moves away from the center of the pressure block 42. At this time, the first spring 431 is in a compressed state, the top surface of the tolerance ring 6 abuts against the bottom surface of the protruding part of the output shaft 5, and the top surface of the inner part of the gear plate 7 abuts against the bottom surface of the protruding part of the output shaft 5. Then, the pneumatic cylinder 41 is started, and the pneumatic cylinder 41 drives the pressure block 42 to move upward. The protruding part of the output shaft 5 applies a downward force to the tolerance ring 6 and the gear plate 7, so that the gear plate 7 moves away from the pressure block 42. Then, the first spring 431 restores its deformation, and the first spring 431 drives the telescopic plate 432 to return to its original position. The pneumatic cylinder 41 drives the pressure block 42 to return to its original position. After the installed output gear workpiece is unloaded, the push-pull cylinder 34 is started. After the push-pull cylinder 34 restores the installation box 33 to its original position, the next output gear workpiece is assembled.

[0063] The above are all preferred embodiments of the present application. These embodiments are only explanations of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be covered within the scope of protection of the present application.

Claims

1. An automatic assembly equipment for powder metallurgy output gear workpieces, characterized in that, include: Grease coating mechanism (2): The grease coating mechanism (2) includes a dispensing assembly (21) and a mounting seat (24), wherein the dispensing assembly (21) is arranged on one side of the mounting seat (24), a placement groove is provided on the top surface of the mounting seat (24), and the bottom of the output shaft (5) is adapted to be inserted into the placement groove, and the dispensing assembly (21) is used to coat the outer wall of the output shaft (5) with grease; A pressing assembly (3): the pressing assembly (3) includes a base plate (322), the base plate (322) is arranged on the top of the mounting seat (24), a tolerance ring (6) is placed on the top surface of the base plate (322), and a push-pull driving member is provided on one side of the base plate (322), and the push-pull driving member is used to drive the base plate (322) to move; Down-pressing assembly (4): the down-pressing assembly (4) includes a down-pressing driving member and a pressing block (42), the pressing block (42) is arranged on the top of the bottom plate (322), the output end of the down-pressing driving member is assembled with the top of the pressing block (42), the bottom surface of the pressing block (42) is provided with a connecting groove (421), the diameter of the connecting groove (421) is adapted to the maximum diameter of the gear plate (7), the gear plate (7) is clamped in the connecting groove (421), the middle part of the pressing block (42) is provided with a slot (422), the bottom of the slot (422) passes through, the outer wall of the output shaft (5) is provided with a mounting groove (51), the diameter of the slot (422) is adapted to the diameter of the mounting groove (51), the mounting groove (51) is located on the top of the mounting seat (24), and the mounting groove (51) is aligned with the output end of the dispensing assembly (21); Wherein, a movable groove (423) is provided inside the pressing block (42), the movable groove (423) is located at the top of the connecting groove (421), the diameter of the movable groove (423) is larger than the diameter of the connecting groove (421), a telescopic component (43) is provided inside the pressing block (42), the telescopic component (43) is located in the movable groove (423), the telescopic component (43) includes a first spring (431) and a telescopic plate (432), one end of the telescopic plate (432) is inserted into the movable groove (423), one end of the first spring (431) is connected to the inner wall of the pressing block (42), the other end of the first spring (431) is connected to the outer wall of the telescopic plate (432), and the inner wall of the telescopic plate (432) and the inner wall of the pressing block (42) are on the same plane; The dispensing assembly (21) includes a pressure barrel (211) and a dispensing component, the dispensing component is arranged on one side of the mounting seat (24), the pressure barrel (211) is arranged on the top of the dispensing component, the output end of the pressure barrel (211) is connected to an output tube, and the end of the output tube away from the pressure barrel (211) is connected to the input end of the dispensing component; The pressing assembly (3) further comprises a lifting drive member, the output end of which is assembled with the bottom of the base plate (322), and the lifting drive member is used to drive the base plate (322) to rise and fall; and the bottom surface of the mounting seat (24) is equipped with a rotating drive member.

2. The automatic assembly equipment for powder metallurgy output gear workpiece according to claim 1, characterized in that: The invention comprises a frame (1), the mounting seat (24) comprises a rotating part (241) and a moving part (242), the rotating part (241) is rotatably connected in the frame (1), the rotating driving member is connected to the bottom surface of the rotating part (241), the moving part (242) is slidably connected in the rotating part (241), the placement groove is located at the top of the moving part (242), a second spring (247) is installed on the inner bottom surface of the rotating part (241), and the top end of the second spring (247) is connected to the bottom surface of the moving part (242).

3. The automatic assembly equipment for powder metallurgy output gear workpiece according to claim 2, characterized in that: A sliding groove (245) is provided inside the movable part (242), and a guide rod (246) is provided inside the movable part (242). The guide rod (246) is movably inserted into the sliding groove (245), and the bottom surface of the guide rod (246) is fixed to the bottom surface inside the rotating part (241). A distance is provided between the top surface of the guide rod (246) and the top surface of the sliding groove (245), and the second spring (247) is sleeved on the outer wall of the bottom of the guide rod (246).

4. The automatic assembly equipment for powder metallurgy output gear workpiece according to claim 2, characterized in that: The inner wall of the rotating part (241) is provided with a moving groove (243), and the moving groove (243) is vertically arranged. The outer wall of the moving part (242) is fixed with a moving block (244), and the moving block (244) is movably inserted into the moving groove (243).

5. An automatic assembly process for a powder metallurgy output gear workpiece, characterized in that: An automatic assembly device for a powder metallurgy output gear workpiece according to any one of claims 1 to 4 comprises the following steps: S1: Assembling the tolerance ring and the gear plate: placing the tolerance ring (6) on the top surface of the bottom plate (322), the gear plate (7) is clamped in the connecting groove (421), the top surface of the gear plate (7) is in contact with the bottom surface of the telescopic plate (432), the downward driving member is started, and the tolerance ring (6) is pressed into the inner wall of the gear plate (7) until the top surface of the tolerance ring (6) is in contact with the bottom surface of the telescopic plate (432), thus completing the installation of the tolerance ring (6) and the gear plate (7); S2: Grease coating on the output shaft: insert the bottom of the output shaft (5) into the placement groove, start the dispensing part, and the output end of the dispensing part extends toward one end of the output shaft (5). Grease is slowly sprayed out from the output end of the dispensing part. The rotating driving part is started, and the rotating driving part rotates to drive the mounting seat (24) to rotate, and drives the output shaft (5) inserted into the mounting seat (24) to rotate, and the grease sprayed by the dispensing part is evenly coated on the outer wall of the output shaft (5). After the dispensing part completes the dispensing, the output end of the dispensing part returns to its original position. S1 and S2 are performed synchronously. S3: Assembling the output shaft, tolerance ring and gear plate: Start the push-pull drive member, which pulls the bottom plate (322) to move, and then start the downward pressure drive member, which drives the pressing block (42) to move downward, and the top of the output shaft (5) enters the slot (422), and the protruding portion of the outer wall of the output shaft (5) enters the tolerance ring (6), and continues to press downward to install the tolerance ring (6) into the installation groove (51). The protruding portion of the outer wall of the output shaft (5) presses the inner wall of the telescopic plate (432), pushing the telescopic plate (432) to move away from the center of the pressing block (42), and the tolerance ring (6) is installed in the installation groove (51). The top surface of the tolerance ring (6) abuts against the bottom surface of the protruding portion of the output shaft (5), and the top surface of the inner portion of the gear plate (7) abuts against the bottom surface of the protruding portion of the output shaft (5). The downward pressing driving member is started, and the downward pressing driving member drives the pressing block (42) to move upward. The protruding portion of the output shaft (5) applies a downward force to the tolerance ring (6) and the gear plate (7), so that the gear plate (7) is away from the pressing block (42). The downward pressing driving member drives the pressing block (42) to return to its original position. After the output gear workpiece that has been installed is unloaded, the push-pull driving member is started, and then the next output gear workpiece is assembled.

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