An automatic assembly device for sealing rings and mandrels

Abstract

This utility model proposes an automated assembly device for sealing rings and mandrels, comprising: a sealing ring feeding module, which includes a sealing ring vibratory feeder, a first straight material channel connected to the discharge end of the sealing ring vibratory feeder, and a sealing ring dispensing mechanism disposed at the end of the first straight material channel; a mandrel feeding module, which includes a mandrel vibratory feeder, a second straight material channel connected to the discharge end of the mandrel vibratory feeder, and a mandrel dispensing mechanism disposed at the end of the second straight material channel; and an assembly execution module, which includes a sealing ring positioning platform and a mandrel transfer mechanism; wherein, the sealing ring positioning platform is disposed below the sealing ring dispensing mechanism to receive the separated sealing rings and maintain their radially expanded state; the mandrel transfer mechanism is used to grasp a single mandrel separated by the mandrel dispensing mechanism and transfer it above the sealing ring positioning platform to complete the press-fitting. Through the above method, the assembly accuracy and assembly efficiency of the sealing rings and mandrels are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to an automated assembly device for sealing rings and mandrels. Background Technology

[0002] In the field of industrial sealing component manufacturing, the precision assembly of sealing rings and mandrels has long relied on manual operation or semi-automatic equipment. In traditional methods, sealing rings, due to their soft and easily deformable material, often experience stacking and jamming during the material distribution process. The assembly stage requires expanding the sealing ring and precisely fitting it onto the mandrel. Currently, most rubber sealing ring and mandrel installations are done manually. The operator holds the mandrel while manually expanding the sealing ring and then fitting it around the mandrel. This process is inefficient, and manual expansion and fitting often causes the sealing ring to stretch and break or misalign, resulting in difficulty controlling the quality of the assembled product and a low yield rate. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes an automated assembly device for sealing rings and mandrels, which effectively improves assembly accuracy and efficiency.

[0004] The main contents of this utility model include: a sealing ring feeding module, which includes a sealing ring vibrating plate, a first straight material channel connected to the discharge end of the sealing ring vibrating plate, and a sealing ring dispensing mechanism disposed at the end of the first straight material channel;

[0005] The mandrel feeding module includes a mandrel vibratory plate, a second straight material channel connected to the discharge end of the mandrel vibratory plate, and a mandrel distributing mechanism located at the end of the second straight material channel;

[0006] The assembly execution module includes a sealing ring positioning platform and a mandrel transfer mechanism. The sealing ring positioning platform is located below the sealing ring distribution mechanism and is used to receive the separated sealing rings and maintain their radially expanded state. The mandrel transfer mechanism is used to grab a single mandrel separated by the mandrel distribution mechanism and transfer it to the sealing ring positioning platform to complete the press-fitting.

[0007] Preferably, the sealing ring dispensing mechanism includes a dispensing base plate fixed to the end of the first straight material channel, on which a vertically penetrating dispensing through hole is provided. The size of the dispensing through hole is adapted to allow a single sealing ring to pass through vertically. A material blocking slider and a first transverse drive member for driving the material blocking slider to move laterally are slidably disposed on one side of the dispensing base plate. A material blocking execution part is provided on the side of the material blocking slider near the dispensing through hole. The material blocking execution part is configured to conform to the shape of the dispensing through hole. When the material blocking execution part closes the dispensing through hole, the height of the upper surface of the material blocking slider does not exceed the sealing ring transmission plane of the first straight material channel.

[0008] Preferably, the material distribution substrate has a horizontally extending guide groove, and the material blocking slider is nested in the guide groove, with the material blocking slider and the guide groove having a clearance fit.

[0009] Preferably, the mandrel dispensing mechanism includes a dispensing bracket fixed to the end of the second straight material channel. The dispensing bracket is equipped with a dispensing slide plate that can move laterally and a second lateral movement drive component that drives the dispensing slide plate to move laterally. The dispensing slide plate has a receiving groove on the side near the second straight material channel. The size of the receiving groove is adapted to a single mandrel. The moving direction of the dispensing slide plate is orthogonal to the discharge direction of the second straight material channel.

[0010] Preferably, the sealing ring positioning platform includes a positioning platform and a platform cylinder for driving the positioning platform to move laterally. The positioning platform is provided with a sealing ring assembly gripper, which includes a sealing ring expansion assembly, a sealing ring ejection assembly, and a multi-stage ejection cylinder. The multi-stage ejection cylinder has an annular ejector rod and a central ejector rod coaxially disposed inside the annular ejector rod. The annular ejector rod drives the sealing ring expansion assembly to perform radial expansion and contraction actions, and the central ejector rod drives the sealing ring ejection assembly to perform a sealing ring ejection assembly action.

[0011] Preferably, the sealing ring expansion assembly includes a wedge-shaped drive block fixed to the top of the annular push rod and a plurality of radial expansion claws evenly distributed around the wedge-shaped drive block. The radial expansion claws are connected to the multi-stage ejection cylinder by an elastic element. The lower end of the radial expansion claws is provided with an inclined contact surface that cooperates with the inclined surface of the wedge-shaped drive block. When the central push rod rises, the wedge-shaped drive block pushes the radial expansion claws to move obliquely outward to achieve sealing ring expansion.

[0012] Preferably, the sealing ring ejection assembly includes an annular ejector plate fixed to the top of the annular ejector rod, the inner diameter of which is larger than the outer diameter of the sealing ring in its contracted state; the annular ejector rod movably passes through the wedge-shaped drive block, and the radial expansion claws are evenly distributed within the annular area of ​​the annular ejector plate.

[0013] Preferably, the mandrel transfer mechanism includes a pneumatic gripper for holding the mandrel, a lifting drive module for driving the pneumatic gripper to move vertically, and a lateral drive module for driving the lifting drive module to move horizontally.

[0014] The beneficial effects of this utility model are as follows: the sealing ring distribution mechanism allows the sealing ring to separate naturally under gravity through the distribution through holes on the distribution plate, eliminating the problem of the sealing ring easily getting stuck due to its flexibility; the annular top rod drives the wedge-shaped drive block to push the circumferentially distributed radial expansion claws outward, so that the sealing ring can obtain uniform radial expansion; the central top rod supports the bottom of the sealing ring through the annular top plate, preventing sagging deformation during expansion and pushing the sealing ring in an expanded state so that it is fitted onto the mandrel circumferentially, realizing the automated assembly of the sealing ring and the mandrel, effectively improving work efficiency and finished product assembly accuracy. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the sealing ring dispensing mechanism in a preferred embodiment;

[0017] Figure 3 This is a three-dimensional structural diagram of the mandrel feeding mechanism in a preferred embodiment;

[0018] Figure 4 This is a three-dimensional structural diagram of the assembly execution module in a preferred embodiment;

[0019] Figure 5 This is a top view of the sealing ring assembly gripper in a preferred embodiment;

[0020] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of AA;

[0021] Figure label:

[0022] 1. Sealing ring feeding module; 11. Sealing ring vibratory feeder; 12. First straight material channel; 13. Sealing ring dispensing mechanism; 131. Dispensing base plate; 1311. Dispensing through hole; 1312. Guide groove; 132. Material blocking slider; 1321. Material blocking actuator; 133. First transverse drive component;

[0023] 2. Mandrel feeding module; 21. Mandrel vibratory feeder; 22. Second straight material channel; 23. Mandrel dispensing mechanism; 231. Dispensing bracket; 232. Dispensing slide plate; 2321. Receiving groove; 233. Second transverse drive component;

[0024] 3. Assembly execution module; 31. Sealing ring positioning platform; 311. Positioning platform; 312. Third transverse drive component; 313. Sealing ring assembly gripper; 3131. Multi-stage ejection cylinder; 31311. Central ejector rod; 31312. Annular ejector rod; 3132. Sealing ring expansion assembly; 31321. Wedge-shaped drive block; 31322. Radial expansion gripper; 31323. Elastic component; 3133. Sealing ring ejection assembly; 31331. Annular ejector plate; 32. Mandrel transfer mechanism; 321. Pneumatic gripper; 322. Lifting drive module; 323. Transverse drive module. Detailed Implementation

[0025] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, this application proposes an automated assembly device for sealing rings and mandrels, which mainly includes a sealing ring feeding module 1, a mandrel feeding module 2, and an assembly execution module 3. The sealing ring feeding module 1 performs automated feeding and dispensing of sealing rings, the mandrel feeding module 2 performs automated feeding and dispensing of mandrels, and the assembly execution module 3 is used to radially expand the separated sealing rings and fit the sealing rings onto the circumference of the separated mandrels, thereby completing the automated assembly of the mandrels and sealing rings, effectively improving assembly efficiency and the assembly accuracy of the finished products. Moreover, the modular design makes the equipment structure more compact and effectively saves equipment space.

[0027] like Figure 1-2 As shown, the sealing ring feeding module 1 includes a sealing ring vibratory feeder 11, a first straight material channel 12 connected to the discharge end of the sealing ring vibratory feeder 11, and a sealing ring distribution mechanism 13 disposed at the end of the first straight material channel 12. A matching vibrator is connected to the bottom of the first straight material channel 12. The sealing ring vibratory feeder 11 is used for feeding sealing rings, and the first straight material channel 12 arranges the sealing rings sequentially through vibration, and separates individual sealing rings at the sealing ring distribution mechanism 13.

[0028] like Figure 1-2As shown, the sealing ring dispensing mechanism 13 includes a dispensing base plate 131 fixed to the end of the first straight material channel 12. The dispensing base plate 131 has a vertically penetrating dispensing through hole 1311. The size of the dispensing through hole 1311 is adapted to the single sealing ring so that the single sealing ring can pass vertically through the dispensing through hole 1311. The sealing ring can be naturally separated by gravity, avoiding jamming problems. A material blocking slider 132 and a first transverse drive member 133 for driving the material blocking slider 132 to move laterally are slidably arranged on one side of the dispensing base plate 131. A material blocking execution part 1321 is provided on the side of the material blocking slider 132 near the dispensing through hole 1311. The material blocking execution part 1321 is configured to conform to the shape of the dispensing through hole 1311. Specifically, when the material blocking actuator 1321 closes the material distribution through hole 1311, the height of the upper surface of the material blocking slider 132 does not exceed the sealing ring transmission plane of the first straight material channel 12, so as to ensure that the sealing ring transmitted by vibration in the first straight material channel 12 can be smoothly transmitted to the upper surface of the material blocking actuator 1321.

[0029] like Figure 2 As shown, preferably, the material distribution substrate 131 has a horizontally extending guide groove 1312, and the material blocking slider 132 is nested in the guide groove 1312 to improve the stability of the sliding process of the material blocking slider 132. Specifically, the guide groove 1312 and the material blocking slider 132 are in clearance fit. When a single sealing ring is received on the upper surface of the material blocking actuator 1321, the first transverse drive member 133 drives the material blocking slider 132 to slide away from the material distribution through hole 1311. The material blocking slider 132 slides along the guide groove 1312, and the sealing ring is blocked by the material distribution substrate 131 and remains in the area of ​​the material distribution through hole 1311. When the material blocking slider 132 completely retracts from the area of ​​the material distribution through hole 1311, the sealing ring falls out of the material distribution through hole 1311 under the action of gravity.

[0030] like Figure 1 As shown, the mandrel feeding module 2 includes a mandrel vibratory feeder 21, a second straight material channel 22 connected to the discharge end of the mandrel vibratory feeder 21, and a mandrel distribution mechanism 23 disposed at the end of the second straight material channel 22. A matching straight vibrator is connected to the bottom of the second straight material channel 22. The mandrel vibratory feeder 21 is used for feeding mandrels, and the second straight material channel 22 arranges the mandrels sequentially through vibration, separating individual mandrels at the mandrel distribution mechanism 23.

[0031] like Figure 1 and 3As shown, the mandrel dispensing mechanism 23 includes a dispensing bracket 231 fixed to the end of the second straight material channel 22. The dispensing bracket 231 is equipped with a dispensing slide plate 232 that can move laterally and a second lateral movement drive 233 that drives the dispensing slide plate 232 to move laterally. The dispensing slide plate 232 has a receiving groove 2321 on the side near the second straight material channel 22. The size of the receiving groove 2321 is adapted to a single mandrel. The moving direction of the dispensing slide plate 232 is orthogonal to the discharge direction of the second straight material channel 22. When the receiving groove 2321 is located at the discharge end of the second straight material channel 22, the receiving groove 2321 receives the single mandrel vibrating and discharging from the second straight material channel 22. The second lateral movement drive 233 drives the dispensing slide plate 232 to slide. The receiving groove 2321 is misaligned with the discharge end of the second straight material channel 22 to realize the separation and discharge of the single mandrel and prevent the mandrel in the second straight material channel 22 from continuing to discharge.

[0032] like Figure 1 and 4 As shown, the assembly execution module 3 includes a sealing ring positioning platform 31 and a mandrel transfer mechanism 32. The sealing ring positioning platform 31 is positioned below the sealing ring distribution mechanism 13 to receive the separated sealing rings and maintain their radially expanded state. The mandrel transfer mechanism 32 is used to grab a single mandrel separated by the mandrel distribution mechanism 23 and move it above the sealing ring positioning platform 31 to complete the press-fitting.

[0033] like Figure 1-6 As shown, the sealing ring positioning platform 31 includes a positioning platform 311 that carries the sealing ring and a third lateral movement drive 312 that drives the positioning platform 311 to move laterally. The positioning platform 311 is provided with a sealing ring assembly gripper 313, which includes a sealing ring expansion assembly 3132, a sealing ring ejection assembly 3133, and a multi-stage ejection cylinder 3131. Specifically, the multi-stage ejection cylinder 3131 has a central ejector rod 31311 and an annular ejector rod 31312 arranged coaxially. The central ejector rod 31311 is located inside the annular ejector rod 31312. The annular ejector rod 31312 drives the sealing ring expansion assembly 3132 to achieve radial expansion or contraction. The central ejector rod 31311 drives the sealing ring ejection assembly 3133 to achieve the sealing ring ejection assembly action.

[0034] like Figure 1-6As shown, the sealing ring expansion assembly 3132 includes a wedge-shaped drive block 31321 fixed to the top of the annular push rod 31312, and a plurality of radial expansion claws 31322 evenly distributed around the wedge-shaped drive block 31321. The lower end of the radial expansion claws 31322 is provided with an inclined contact surface that cooperates with the inclined surface of the wedge-shaped drive block 31321. When the annular push rod 31312 rises, the wedge-shaped drive block 31321 pushes the radial expansion claws 31322 to move horizontally to achieve uniform expansion of the sealing ring. An elastic element 31323 is connected between the radial expansion claws 31322 and the multi-stage ejection cylinder 3131. When the annular push rod 31312 drives the wedge-shaped drive block 31321 to fall, the radial expansion claws 31322 return to their original position under the elastic action of the elastic element 31323 to achieve a contraction action.

[0035] like Figure 1-6 As shown, the sealing ring ejection assembly 3133 includes an annular ejector plate 31331 fixed to the top of the central ejector rod 31311. The inner diameter of the annular ejector plate 31331 is larger than the outer diameter of the sealing ring in its contracted state, and it can be used to eject the sealing ring in its expanded state. Radial expansion claws 31322 are evenly distributed within the annular area of ​​the annular ejector plate 31331, and the upper end face of the annular ejector plate 31331 is lower than the top of the radial expansion claws 31322. The sealing ring rests on the upper end face of the annular ejector plate 31331 and is expanded by the radial expansion claws 31322.

[0036] like Figure 1 As shown, the mandrel transfer mechanism 32 includes a pneumatic gripper 321 for holding the mandrel, a lifting drive module 322 for driving the pneumatic gripper 321 to move vertically, and a lateral drive module 323 for driving the lifting drive module 322 to move horizontally. The lateral drive module 323 drives the pneumatic gripper 321 to reciprocate laterally between the mandrel loading module 2 and the sealing ring positioning platform 31.

[0037] In specific embodiments, the first lateral movement drive, the second lateral movement drive, and the third lateral movement drive can be mechanisms such as telescopic cylinders and pneumatic slides, and the lateral movement drive module and the lifting drive module can be linear motor modules, ball screw modules, etc., all of which are conventional components in the art and are not specifically limited here.

[0038] Working principle:

[0039] The sealing ring is vibrated and fed onto the closed material blocking actuator 1321 via the sealing ring vibrating plate 11 and the first straight material channel 12. The first transverse drive 133 drives the material blocking slider 132 to move laterally along the guide groove 1312. The sealing ring falls vertically from the material distribution through hole 1311 onto the sealing ring assembly gripper 313 below. The third transverse drive 312 drives the positioning platform 311 to move laterally, so that the sealing ring assembly gripper 313 moves from below the sealing ring material distribution mechanism to the assembly station.

[0040] The mandrel is vibrated and fed into the receiving groove 2321 of the distributing slide plate 232 via the mandrel vibrating plate 21 and the second straight material channel 22. The second lateral drive 233 drives the distributing slide plate 232 to move laterally, realizing material misalignment. The pneumatic clamp 321 grabs and separates the mandrel from the mandrel distributing mechanism 23 and moves it above the sealing ring assembly jaw 313 at the assembly station.

[0041] The lifting drive module 322 drives the pneumatic clamp 321 to descend, so that the lower end of the mandrel is located in the central area of ​​the radial expansion claw 31322. The annular top plate 31331 pushes the sealing ring in the expansion state upward. As the sealing ring detaches from the radial expansion claw 31322, it quickly retracts and is fitted around the mandrel, thereby completing the automated assembly of the sealing ring and the mandrel.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automated seal and mandrel assembly apparatus, comprising: Mainly includes: The sealing ring feeding module (1) includes a sealing ring vibrating plate (11), a first straight material channel (12) connected to the discharge end of the sealing ring vibrating plate (11), and a sealing ring distributing mechanism (13) located at the end of the first straight material channel (12). The mandrel feeding module (2) includes a mandrel vibratory plate (21), a second straight material channel (22) connected to the discharge end of the mandrel vibratory plate (21), and a mandrel distributing mechanism (23) located at the end of the second straight material channel (22). The assembly execution module (3) includes a sealing ring positioning platform (31) and a mandrel transfer mechanism (32); wherein, the sealing ring positioning platform (31) is arranged below the sealing ring distribution mechanism (13) to receive the separated sealing ring and maintain its radial expansion state; the mandrel transfer mechanism (32) is used to grab a single mandrel separated by the mandrel distribution mechanism (23) and transfer it to the sealing ring positioning platform (31) to complete the assembly.

2. The automated assembly device for sealing rings and mandrels according to claim 1, characterized in that, The sealing ring dispensing mechanism (13) includes a dispensing base plate (131) fixed to the end of the first straight material channel (12), which has a vertically penetrating dispensing through hole (1311) on it. The size of the dispensing through hole (1311) is adapted to a single sealing ring. A material blocking slider (132) and a first transverse drive member (133) for driving the material blocking slider (132) to move laterally are slidably arranged on one side of the dispensing base plate (131). A material blocking execution part (1321) is provided on the side of the material blocking slider (1321) near the dispensing through hole (1311). The material blocking execution part (1321) is configured in the same shape as the dispensing through hole (1311). When the material blocking execution part (1321) closes the dispensing through hole (1311), the height of the upper surface of the material blocking slider (132) does not exceed the sealing ring transmission plane of the first straight material channel (12).

3. The automated assembly device for sealing rings and mandrels according to claim 2, characterized in that, The material distribution plate (131) has a horizontally extending guide groove (1312), and the material blocking slider (132) is nested in the guide groove (1312), with the material blocking slider (132) and the guide groove (1312) in clearance fit.

4. The automated assembly device for sealing rings and mandrels according to claim 1, characterized in that, The mandrel dispensing mechanism (23) includes a dispensing bracket (231) fixed to the end of the second straight material channel (22). The dispensing bracket (231) is equipped with a dispensing slide plate (232) that can move laterally and a second lateral movement drive (233) that drives the dispensing slide plate (232) to move laterally. The dispensing slide plate (232) has a receiving groove (2321) on the side near the second straight material channel (22). The size of the receiving groove (2321) is adapted to a single mandrel. The moving direction of the dispensing slide plate (232) is orthogonal to the discharge direction of the second straight material channel (22).

5. The automated assembly device for sealing rings and mandrels according to claim 1, characterized in that, The sealing ring positioning platform (31) includes a positioning platform (311) and a third transverse drive (312) for driving the positioning platform (311) to move laterally. The positioning platform (311) is provided with a sealing ring assembly gripper (313), which includes a sealing ring expansion assembly (3132), a sealing ring ejection assembly (3133), and a multi-stage ejection cylinder (3131). The multi-stage ejection cylinder (3131) has an annular ejector rod (31312) and a central ejector rod (31311) coaxially arranged inside the annular ejector rod (31312). The annular ejector rod (31312) drives the sealing ring expansion assembly (3132) to perform radial expansion and contraction actions, and the central ejector rod (31311) drives the sealing ring ejection assembly (3133) to perform sealing ring ejection assembly actions.

6. The automated assembly device for sealing rings and mandrels according to claim 5, characterized in that, The sealing ring expansion assembly (3132) includes a wedge-shaped drive block (31321) fixed to the top of the annular push rod (31312) and a plurality of radial expansion claws (31322) evenly distributed around the wedge-shaped drive block (31321). An elastic element (31323) is connected between the radial expansion claws (31322) and the multi-stage ejection cylinder (3131). The lower end of the radial expansion claws (31322) is provided with an inclined contact surface that cooperates with the inclined surface of the wedge-shaped drive block (31321). When the annular push rod (31312) rises, the wedge-shaped drive block (31321) pushes the radial expansion claws (31322) to move outward to realize the expansion of the sealing ring.

7. The automated assembly device for sealing rings and mandrels according to claim 6, characterized in that, The sealing ring ejection assembly (3133) includes an annular ejector plate (31331) fixed to the top of the central ejector rod (31311), the inner diameter of which is larger than the outer diameter of the sealing ring in its contracted state; the central ejector rod (31311) passes through the wedge-shaped drive block (31321), and the radial expansion claws (31322) are evenly distributed within the annular area of ​​the annular ejector plate (31331).

8. The automated assembly device for sealing rings and mandrels according to claim 1, characterized in that, The spindle transfer mechanism (32) includes a pneumatic gripper (321) for holding the spindle, a lifting drive module (322) for driving the pneumatic gripper (321) to move vertically, and a transverse drive module (323) for driving the lifting drive module (322) to move horizontally.

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