Automatic press-fitting and screwing device and method for special-shaped assembly

By designing the automatic pressing and screwing device for special-shaped components, the automatic pressing and screwing of special-shaped components is realized, solving the problem of difficulty in twisting aluminum long pipes and safety hazards of artificial lubrication, reducing labor intensity and improving safety.

CN120326342APending Publication Date: 2025-07-18CHINA NTAIONAL NUCLEAR TIANJIN MACHINERY
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Patent Information

Application Number
CN202510306578.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

In the prior art, automatic screwing of special-shaped components, especially aluminum long pipes, is difficult, and manual lubrication operation has safety risks.

Method used

A special-shaped component automatic press-fitting and screwing device is designed, including base, aluminum long pipe loading machine, industrial robot, vibration disk, sealing component loading wheel, disassembly and palletizer, press-fitting and screwing wheel, etc., and automatic press-fitting and screwing wheel are achieved through the guide cone grab jaw and the servo press, combining the guide cone drip alcohol structure to reduce the need for artificial lubrication.

Benefits of technology

Automatic pressing and screwing of special-shaped components is realized, which reduces labor intensity, reduces alcohol usage, and improves operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an automatic press-fitting and screwing device and method for a special-shaped assembly. The automatic press-fitting and screwing device comprises a base, and an aluminum long pipe feeding machine, an industrial robot, a vibration disc, a sealing assembly, a guide cone feeding rotary disc, an unstacking and stacking machine, a press-fitting mechanism and a press-fitting and screwing rotary disc are installed on the base; the positioning seat is mounted on the press fitting and screwing turntable, the aluminum long pipe clamping mechanism is fixed on the industrial robot, and the servo module is fixed on the unstacking and stacking machine; positioning grooves are formed in the sealing assembly and the guide cone feeding rotary disc, and guide cones are placed in the positioning grooves. According to the automatic press-fitting and screwing device, automatic press-fitting and screwing operation of the copper special-shaped part, the sealing assembly and the aluminum long pipe is achieved, workers only need to conduct feeding in the operation process, and the labor intensity of the workers is relieved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of machining, and particularly relates to an automatic press-fitting and screwing device and method for special-shaped components. Background Art

[0002] In the prior art, a special-shaped component is formed through a press-fitting and screwing process of a copper special-shaped part, a sealing component, and an aluminum long tube. The sealing component is a combined part of a rubber ring and a plastic ring. During the press-fitting process, reaming needs to be carried out through a pilot cone, and in order to ensure the smoothness of the press-fitting process, alcohol is required for lubrication. Currently, the lubrication means is that a worker holds the pilot cone to dip alcohol for reaming and press-fitting, and then the threaded part of the aluminum long tube is screwed with the assembled part after press-fitting to form a special-shaped component. However, the aluminum long tube is characterized by being thin and long, and there are certain technical difficulties in realizing automatic screwing.

[0003] To solve the above problems, the present invention provides an automatic press-fitting and screwing device and method for special-shaped components, which are used to realize the reaming and press-fitting of the copper special-shaped part and the sealing component, as well as the automatic screwing function of the assembled part after press-fitting and the aluminum long tube. Summary of the Invention

[0004] According to the problems raised above, the present invention provides an automatic press-fitting and screwing device and method for special-shaped components, and the specific solutions are as follows:

[0005] An automatic press-fitting and screwing device for special-shaped components includes a base, on which an aluminum long tube loading machine, an industrial robot, a vibrating bowl feeder, a sealing component and a pilot cone loading turntable, a palletizing and depalletizing machine, a press-fitting mechanism, and a press-fitting and screwing turntable are installed;

[0006] A positioning seat is installed on the press-fitting and screwing turntable, and an aluminum long tube clamping mechanism is fixed on the sixth axis of the industrial robot, and a servo module is fixed on the palletizing and depalletizing machine;

[0007] The sealing component and the pilot cone loading turntable are provided with positioning grooves, and the pilot cone is placed in the positioning grooves.

[0008] Preferably, the press-fitting mechanism includes a servo press, a transverse movement mechanism, a press head, a pilot cone grasping jaw, and a reaction force mechanism;

[0009] The servo press is fixed on the moving connecting plate of the transverse movement mechanism and is used for horizontal movement;

[0010] The press head is of a hollow type, with a plurality of side round holes opened on the side, and the press head is connected to the servo press and is used for vertical movement;

[0011] The pilot cone grasping jaw is fixed on the moving connecting plate of the transverse movement mechanism and corresponds to the pilot cone below;

[0012] The reaction force mechanism is fixed on the base and corresponds to the positioning seat above.

[0013] Preferably, the side wall of the guide cone is provided with a plurality of fine round holes for the guide cone gripping jaw to extend into the side hole to grip the guide cone; a large round hole is opened above the guide cone, and the large round hole is communicated with the fine round holes for dripping alcohol.

[0014] More preferably, the positioning seat comprises a clamping mechanism and a positioning mechanism connected to each other through a spring bearing;

[0015] The clamping mechanism is used for clamping or loosening the aluminum long tube placed in the positioning seat, and the positioning mechanism is used for angular positioning of the positioning seat;

[0016] The spring bearing is used for buffering the force during press-fitting, and at the same time, the reaction force mechanism below is used to prevent the press-fitting and screwing turntable from being stressed.

[0017] More preferably, the clamping mechanism comprises three wedge-shaped clamping blocks arranged on the inner wall of the positioning seat. The clamping blocks are clamped or loosened through a telescopic shaft with a spring arranged in the middle upper part of the positioning seat. The telescopic shaft is connected to a pull plate, and a tightening shaft is arranged at the bottom of the pull plate. The tightening shaft is connected to the positioning mechanism.

[0018] More preferably, the positioning structure comprises a tightening anti-rotation plate sleeved on the tightening shaft. The tightening anti-rotation plate is provided with a groove, and a movable block falls into the groove. The movable block is hinged to a lifting plate, and the lifting plate is driven by a stretching cylinder. The stretching cylinder is connected to the base.

[0019] Preferably, the aluminum long tube clamping mechanism comprises a bottom plate, on which a first clamping jaw, a second clamping jaw, and a third clamping jaw are sequentially arranged from top to bottom. A rubber pad is adhered to the second clamping jaw, and a floating spring is installed on the back of the bottom plate.

[0020] The second object of the present invention:

[0021] An automatic press-fitting and screwing method for a special-shaped component, which applies an automatic press-fitting and screwing device for a special-shaped component, and comprises the following steps:

[0022] Step 1: Feeding and press-fitting;

[0023] The copper special-shaped part is fed through a depalletizer and grabbed by a servo module into the positioning seat. The sealing component is fed through a vibrating disk, and the sealing component is placed on the guide cone with alcohol dripped through a sealing component and guide cone feeding turntable. The guide cone gripping jaw in the press-fitting mechanism grabs the guide cone with the sealing component and places the guide cone on the copper special-shaped part for press-fitting;

[0024] Step 2: Screwing and discharging;

[0025] After the aluminum long tube is loaded by the aluminum long tube loader, the industrial robot grabs the aluminum long tube through the aluminum long tube clamping mechanism and screws it above the copper special-shaped part after press-fitting.

[0026] When screwing, the positioning seat is driven by the tightening shaft to rotate, driving the copper special-shaped part to rotate together to complete the screwing action. After the screwing is completed, the industrial robot grabs the screwed assembly through the aluminum long tube clamping mechanism to complete the unloading action.

[0027] Preferably, in the first step, during press-fitting, the transverse movement mechanism moves to the left, the servo press moves downward, the guide cone enters the hollow press head, and there are multiple side round holes on the side wall of the press head. After the guide cone grabbing claw extends into the side hole to grab the guide cone, it moves to the press-fitting station through the transverse movement mechanism. The servo press drives the press head to move downward. After the guide cone is in place, the guide cone grabbing claw releases, and the press head continues to move downward for press-fitting. After the press-fitting is completed, the guide cone grabbing claw clamps the guide cone and returns the guide cone to its original position through the servo press and the transverse movement mechanism.

[0028] Preferably, in the second step, when the positioning seat clamps the aluminum long tube, the telescopic shaft moves upward under the elastic force of the spring bearing, pushing the three clamping blocks to simultaneously move inward and squeeze the aluminum long tube.

[0029] During rotation, the positioning seat drives the tightening anti-rotation plate through the tightening shaft to rotate the positioning seat for tightening; when the positioning seat is released, the tightening anti-rotation plate is pulled and released through the pull plate and the stretching cylinder. When released, the telescopic shaft moves downward under the pulling force, and the three clamping blocks open under the elastic force. At this time, the workpiece can be taken out for unloading.

[0030] The beneficial effects of the present invention are:

[0031] 1. The development of this device realizes the automatic press-fitting and screwing operations of copper special-shaped parts, sealing components, and aluminum long tubes. Workers only need to load materials during operation, reducing the labor intensity of workers.

[0032] 2. Through the design of the guide cone dropping alcohol structure, the alcohol consumption is reduced, avoiding workers from contacting alcohol during operation and improving operation safety. Description of the Drawings

[0033] The technical solutions of the present invention will be further described in detail below in conjunction with the drawings and embodiments. However, it should be known that these drawings are only designed for the purpose of explanation and therefore are not used to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0034] Figure 1 It is a three-dimensional structural schematic diagram of the device of the present invention;

[0035] Figure 2is a top view of the device of the present invention;

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of the guide cone in the device of the present invention;

[0037] Figure 4 It is a three-dimensional structural schematic diagram of the press-fitting mechanism in the device of the present invention;

[0038] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressure head in the device of the present invention;

[0039] Figure 6 It is a three-dimensional structural schematic diagram of the long tube clamping mechanism in the device of the present invention;

[0040] Figure 7 It is a schematic diagram of the external structure of the positioning seat in the device of the present invention;

[0041] Figure 8 This is a schematic diagram of the positioning mechanism in the positioning seat of the device of the present invention. Figure 1 ;

[0042] Figure 9 This is a schematic diagram of the positioning mechanism in the positioning seat of the device of the present invention. Figure 2 ;

[0043] In the figure:

[0044] 1-aluminum long tube loader; 2-industrial robot; 3-vibration plate; 4-sealing assembly and guide cone loading turntable; 5-guide cone; 6-palletizer;

[0045] 7-pressing mechanism; 701-servo press; 702-transverse movement mechanism; 703-pressing head; 704-guide cone grabbing claw; 705-reaction mechanism;

[0046] 8- Press and twist the turntable;

[0047] 9-positioning seat; 901-tighten the anti-rotation plate; 902-clamping block;

[0048] 10-aluminum long tube clamping mechanism; 1001-first clamping jaw 1; 1002-second clamping jaw; 1003-third clamping jaw; 1004-floating spring;

[0049] 11-servo module; 12-movable block; 13-lifting plate; 14-pulling plate; 15-stretching cylinder; 16-unloading trolley; 17-base. DETAILED DESCRIPTION

[0050] First of all, it should be noted that the specific structure, characteristics, advantages, etc. of the present invention will be specifically described below by way of examples. However, all the descriptions are only for illustration and should not be construed as any limitation to the present invention. In addition, any single technical feature described or implied in each of the embodiments mentioned herein, or any single technical feature shown or implied in each of the drawings, can still be arbitrarily combined or deleted between these technical features, so as to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplifying the drawings, the same or similar technical features may be marked only at one place in the same drawing.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The following will specifically describe the present invention with reference to the Figure 1 - attached Figure 9 drawings.

[0053] Embodiment 1:

[0054] A special-shaped component automatic press-fitting and swiveling device, including a base 17, on which an aluminum long tube loading machine 1, an industrial robot 2, a vibrating disk 3, a sealing component and a guide cone loading turntable 4, a palletizing and depalletizing machine 6, a press-fitting mechanism 7, and a press-fitting and swiveling turntable 8 are installed;

[0055] A positioning seat 9 is installed on the press-fitting and swiveling turntable 8, an aluminum long tube clamping mechanism 10 is fixed on the sixth axis of the industrial robot 2, and a servo module 11 is fixed on the palletizing and depalletizing machine 6;

[0056] The sealing component and the guide cone loading turntable 4 are provided with positioning grooves, and the guide cone 5 is placed in the positioning grooves.

[0057] Working principle:

[0058] As Figure 1 to Figure 2As shown, the aluminum long-tube loader 1, industrial robot 2, vibrating bowl 3, sealing component and tapered guide feeding turntable 4, press-fitting mechanism 7, and press-fitting and screwing turntable 8 are all installed on the base 13, and the palletizing and depalletizing machine 6 is fixedly connected to the base 13. The tapered guide 5 is a movable part and is placed in the positioning groove of the sealing component and the tapered guide feeding turntable 4. The positioning seat 9 is installed on the press-fitting and screwing turntable 8, and the aluminum long-tube clamping mechanism 10 is fixedly installed on the sixth axis of the industrial robot 2. The servo module 11 is fixed on the palletizing and depalletizing machine 6.

[0059] The feeding of the copper-shaped special parts adopts the form of palletizing and depalletizing. The servo module 11 and the gripper grab it to the feeding position of the press-fitting and screwing turntable 8 and rotate it to the press-fitting position. The sealing component is fed by the vibrating bowl 3. After the tapered guide 5 is dripped with alcohol, the gripper grabs the sealing component to the tapered guide 5, and through the transverse movement mechanism 702, servo press 701 and tapered guide gripper 704, it is moved to the press-fitting position to complete the press-fitting action of the copper-shaped special parts and the sealing component. The aluminum long tube is fed by the aluminum long-tube loader 1, and the industrial robot 2 and the aluminum long-tube clamping mechanism 10 grab the aluminum long tube and move it to the screwing position to complete the screwing action.

[0060] Furthermore, it can also be considered in the embodiment that the press-fitting mechanism 7 includes a servo press 701, a transverse movement mechanism 702, a punch 703, a tapered guide gripper 704, and a reaction force mechanism 705;

[0061] The servo press 701 is fixed on the moving connecting plate of the transverse movement mechanism 702 and is used for horizontal movement;

[0062] The punch 703 is of a hollow type with a plurality of side round holes on the side. The punch 703 is connected to the servo press 701 and is used for vertical movement;

[0063] The tapered guide gripper 704 is fixed on the moving connecting plate of the transverse movement mechanism 702 and corresponds to the tapered guide 5 below;

[0064] The reaction force mechanism 705 is fixed on the base 17 and corresponds to the positioning seat 9 above.

[0065] In this embodiment, the punch 703 is made into a hollow type with a plurality of side round holes on the side wall. The transverse movement mechanism 702 moves to the grasping position of the tapered guide 5, drives the punch 703 to move down, the tapered guide 5 enters the inside of the punch 703. After the tapered guide gripper 704 grabs the tapered guide 5 through the side round holes on the side wall of the punch 703, the transverse movement mechanism 702 moves to the press-fitting position. After the tapered guide gripper 704 releases the tapered guide 5, the punch 703 continues to move down for press-fitting.

[0066] Further, it can also be considered in the embodiment that a plurality of fine round holes are provided on the side wall of the guiding cone 5 for the gripping jaw 704 of the guiding cone to extend into the side hole to grip the guiding cone 5; a large round hole is opened above the guiding cone 5, and the large round hole is communicated with the fine round holes for dripping alcohol.

[0067] In this embodiment, for the effect of dripping alcohol, when press-fitting the copper-shaped part and the sealing component, alcohol is dripped above the large round hole, and the alcohol flows out through the fine round holes. During the downward pressing process of the sealing component, it contacts the alcohol, playing a lubricating role to ensure the interference press-fitting effect.

[0068] Furthermore, it can also be considered in the embodiment that the positioning seat 9 includes a clamping mechanism and a positioning mechanism connected to each other through a spring bearing;

[0069] The clamping mechanism is used to clamp or loosen the aluminum long tube placed in the positioning seat 9, and the positioning mechanism is used for angular positioning of the positioning seat 9;

[0070] The spring bearing is used to buffer the force during press-fitting, and at the same time, the reaction force mechanism 705 below is used to prevent the press-fitting and screwing turntable 8 from being stressed.

[0071] Furthermore, it can also be considered in the embodiment that the clamping mechanism includes three wedge-shaped clamping blocks 902 provided on the inner wall of the positioning seat 9. The clamping blocks 902 are clamped or loosened through a telescopic shaft with a spring provided in the middle and upper part of the positioning seat 9. The telescopic shaft is connected to a pull plate 14, and a tightening shaft is provided at the bottom of the pull plate 14, and the tightening shaft is connected to the positioning mechanism.

[0072] In this embodiment, since key components are welded on the copper-shaped part, it cannot be bumped or stressed during press-fitting and screwing, and during the screwing process, it is necessary to ensure that there is no relative displacement of the key components to avoid dimensional stress exceeding the tolerance. At the same time, the main part of the shaped part is a stepped shaft structure, so only the frictional force can provide the force required for screwing fit.

[0073] In order to ensure the stability of the clamping force, a non-powered method is used to clamp the shaped part. For this, a positioning seat 9 is provided, and the copper-shaped part is clamped in a non-powered manner by using the spring force. The clamping structure inside the positioning seat 9 consists of three clamping blocks to ensure its positioning accuracy, and the clamping blocks adopt a wedge-shaped structure.

[0074] It can also be considered in the embodiment that the positioning seat 9 adopts a wedge clamping structure with rollers, which converts the spring force into a clamping force and plays a role in increasing the force. A bearing is added to the periphery of the positioning seat 9, and it can rotate under the drive of the tightening shaft.

[0075] Further, it can also be considered in the embodiment that the positioning structure includes a tightening anti-rotation plate 901 sleeved on the tightening shaft. A groove is provided on the tightening anti-rotation plate 901, and the movable block 12 falls into the groove. The movable block 12 is hinged to the lifting plate 13, and the lifting plate 13 is driven by a stretching cylinder 15, and the stretching cylinder 15 is connected to the base 17.

[0076] Further, it can also be considered in the embodiment that the aluminum long tube clamping mechanism 10 includes a bottom plate, and the bottom plate is successively provided with a first jaw 1001, a second jaw 1002, and a third jaw 1003 from top to bottom. A rubber pad is adhered to the second jaw 1002, and a floating spring 1004 is installed on the back of the bottom plate.

[0077] In this embodiment, the aluminum long tube is fixed during screwing, and the copper special-shaped part rotates. The copper special-shaped part is clamped by the positioning seat 8 and driven to rotate by the tightening shaft. The aluminum long tube is clamped by the aluminum long tube clamping mechanism 10. The aluminum long tube clamping mechanism 10 is composed of three groups of jaws. The first jaw 1001 and the third jaw 1003 are used for positioning, and the second jaw 1002 is used to provide a clamping force. The contact surface with the workpiece is adhered with a rubber material to increase the friction force and avoid slipping during screwing. The aluminum long tube clamping mechanism 10 is provided with a floating spring 1004 to avoid damaging the thread when recognizing the thread.

[0078] Embodiment 2:

[0079] An automatic pressing and screwing method for special-shaped components, which applies an automatic pressing and screwing device for special-shaped components, includes the following steps:

[0080] Step 1: Feeding and pressing;

[0081] The copper special-shaped part is fed by the unpacking and palletizing machine 6 and grabbed by the servo module 11 into the positioning seat 9. The sealing component is fed by the vibrating disk 3, and the sealing component is placed on the guide cone 5 dropped with alcohol through the sealing component and the guide cone feeding turntable 4. The guide cone grabbing jaw 704 in the pressing mechanism 7 grabs the guide cone 5 with the sealing component and places the guide cone 5 on the copper special-shaped part for pressing;

[0082] Step 2: Screwing and discharging;

[0083] After the aluminum long tube is fed by the aluminum long tube feeding machine 1, the industrial robot 2 grabs the aluminum long tube through the aluminum long tube clamping mechanism 10 and screws it above the pressed copper special-shaped part;

[0084] During screwing, the tightening shaft drives the positioning seat 9 to rotate, driving the copper special-shaped part to rotate together to complete the screwing action. After the screwing is completed, the industrial robot grabs the screwed component through the aluminum long tube clamping mechanism 10 to complete the discharging action.

[0085] Further, it can also be considered in the embodiment that in the first step, during press-fitting, the transverse movement mechanism 702 moves leftward, the servo press 701 moves downward, the guide cone 5 enters the hollow pressing head 703, and a plurality of side round holes are formed in the side wall of the pressing head 703. After the guide cone gripping jaws extend into the side holes to grip the guide cone, they are moved to the press-fitting station through the transverse movement mechanism 702. The servo press 701 drives the pressing head 703 to move downward. After the guide cone 5 is in place, the guide cone gripping jaws 704 are released, and the pressing head 703 continues to move downward for press-fitting. After the press-fitting is completed, the guide cone gripping jaws 704 clamp the guide cone 5, and the guide cone 5 is returned to its original position through the servo press 701 and the transverse movement mechanism 702.

[0086] Further, it can also be considered in the embodiment that in the second step, when the positioning seat 9 clamps the aluminum long tube, the telescopic shaft moves upward under the elastic force of the spring bearing, pushing the three clamping blocks 902 to simultaneously move inward to squeeze the aluminum long tube;

[0087] During rotation, the positioning seat 9 drives the tightening anti-rotation plate 901 through the tightening shaft to make the positioning seat 9 rotate for the tightening action; when the positioning seat 9 is loosened, the tightening anti-rotation plate 901 is pulled and loosened through the pull plate 14 and the stretching cylinder 15. When loosening, the telescopic shaft moves downward under the pulling force, and the three clamping blocks 902 open under the elastic force. At this time, the workpiece can be taken out for blanking.

[0088] In the above embodiment, when the positioning seat 9 clamps the copper-shaped part, the telescopic shaft moves upward under the elastic force of the spring, and the rollers on the telescopic shaft 905 move upward, pushing the clamping blocks 902 to move inward to squeeze the workpiece, and the three clamping blocks 902 act simultaneously to clamp the workpiece. During press-fitting, the positioning seat 9 plays a buffering role through the internal spring 902, and at the same time, the lower reaction force mechanism 705 is used to prevent the press-fitting and the rotating turntable 8 from being stressed. During rotation, the positioning seat 9 rotates through the tightening anti-rotation plate 901 for the tightening action.

[0089] After the tightening is completed, the upper lifting plate 13 drops, the movable block 12 drops, and falls into the groove of the tightening anti-rotation plate 901 to position the angular direction of the positioning seat 9. When the positioning seat 9 is loosened, the tightening anti-rotation plate 901 is pulled and loosened through the pull plate 14 and the stretching cylinder 15. When loosening, the telescopic shaft moves downward under the pulling force, and the clamping blocks 902 open under the elastic force of the spring. At this time, the workpiece is taken out by the three jaws of the aluminum long tube clamping mechanism 10 on the industrial robot 2 for blanking.

[0090] Further, it can also be considered in the embodiment that in the first step, before the guide cone 5 is placed into the sealing component, alcohol is dropped into the large round hole above the guide cone 5 and flows out through a plurality of thin round holes on the side wall, so that after the guide cone 5 is placed into the sealing component, it plays a lubricating role when the sealing component moves downward.

[0091] Furthermore, it can also be considered in the embodiment that in step two, the aluminum long tube clamping mechanism 10 is installed on the industrial robot 2, and the aluminum long tube is clamped by the cylinder and three jaws 902.

[0092] When screwing, the aluminum long tube is moved above the copper special-shaped part by the industrial robot 2 and the long tube clamping mechanism 10, and then pressed down to identify the hole. After identifying the hole, the screwing action is carried out, and the floating screwing is realized through the floating spring 1004, while avoiding rigid pressing down without buffering and damaging the thread.

[0093] The above embodiments have described the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. An automatic press-fitting and screwing device for special-shaped components, characterized in that: It includes a base (17), on which an aluminum long-tube loader (1), an industrial robot (2), a vibrating bowl feeder (3), a sealing component and a guide cone feeding turntable (4), a palletizing and depalletizing machine (6), a press-fitting mechanism (7), and a press-fitting and screwing turntable (8) are installed; A positioning seat (9) is installed on the press-fitting and screwing turntable (8), and an aluminum long-tube clamping mechanism (10) is fixed on the sixth axis of the industrial robot (2), and a servo module (11) is fixed on the palletizing and depalletizing machine (6); The sealing component and the guide cone feeding turntable (4) are provided with positioning grooves, and the guide cone (5) is placed in the positioning grooves.

2. The automatic press-fitting and screwing device for a special-shaped component according to claim 1, wherein: The press-fitting mechanism (7) includes a servo press (701), a transverse movement mechanism (702), a press head (703), a guide cone gripping jaw (704), and a reaction force mechanism (705); The servo press (701) is fixed on the moving connecting plate of the transverse movement mechanism (702) for horizontal movement; The press head (703) is hollow, with a plurality of side round holes on the side, and the press head (703) is connected to the servo press (701) for vertical movement; The guide cone gripping jaw (704) is fixed on the moving connecting plate of the transverse movement mechanism (702) corresponding to the guide cone (5) below; The reaction force mechanism (705) is fixed on the base (17) corresponding to the positioning seat (9) above; 3. The automatic press-fitting and screwing device for a special-shaped component according to claim 2, wherein: The side wall of the guide cone (5) is provided with a plurality of fine round holes for the guide cone gripping jaw (704) to extend into the side holes to grip the guide cone (5); a large round hole is opened above the guide cone (5), and the large round hole is communicated with the fine round holes for dripping alcohol.

4. An automatic press-fitting and screwing device for a special-shaped component according to claim 2, characterized in that: The positioning seat (9) includes a clamping mechanism and a positioning mechanism connected to each other through a spring bearing; The clamping mechanism is used to clamp or loosen the aluminum long tube placed in the positioning seat (9), and the positioning mechanism is used for angular positioning of the positioning seat (9); The spring bearing is used to buffer the force during press-fitting, and at the same time, through the reaction force mechanism (705) below, the press-fitting and screwing turntable (8) is prevented from being stressed.

5. An automatic press-fitting and screwing device for a special-shaped component according to claim 4, characterized in that: The clamping mechanism includes three wedge-shaped blocks (902) provided on the inner wall of the positioning seat (9), and the wedge-shaped blocks (902) are clamped or loosened through a telescopic shaft with a spring provided in the upper middle part of the positioning seat (9). The telescopic shaft is connected to a pull plate (14), and a tightening shaft is provided at the bottom of the pull plate (14), and the tightening shaft is connected to the positioning mechanism.

6. The automatic press-fitting and screwing device for a special-shaped component according to claim 5, characterized in that: The positioning structure includes a tightening anti-rotation plate (901) sleeved on the tightening shaft. The tightening anti-rotation plate (901) is provided with a groove, and a movable block (12) falls into the groove. The movable block (12) is hinged to a lifting plate (13), and the lifting plate (13) is driven by a stretching cylinder (15), and the stretching cylinder (15) is connected to the base (17).

7. An automatic press-fitting and screwing device for a special-shaped component according to claim 1, characterized in that: The aluminum long tube clamping mechanism (10) includes a bottom plate, on which a first jaw (1001), a second jaw (1002), and a third jaw (1003) are sequentially arranged from top to bottom. A rubber pad is adhered to the second jaw (1002), and a floating spring (1004) is installed on the back of the bottom plate.

8. An automatic press-fitting and screwing method for a special-shaped component, which applies the automatic press-fitting and screwing device for a special-shaped component according to any one of claims 1-7, characterized in that, It includes the following steps: Step 1: Loading and press-fitting; The copper-shaped special-shaped part is loaded by the unstacking machine (6), grabbed by the servo module (11) and placed into the positioning seat (9). The sealing component is loaded by the vibrating disk (3), and the sealing component is placed on the guide cone (5) with alcohol dropped through the sealing component and the guide cone feeding turntable (4). The guide cone grabbing jaw (704) in the press-fitting mechanism (7) grabs the guide cone (5) with the sealing component and places the guide cone (5) on the copper-shaped special-shaped part for press-fitting. Step 2: Screwing and unloading; After the aluminum long tube is loaded by the aluminum long tube loading machine (1), the industrial robot (2) grabs the aluminum long tube through the aluminum long tube clamping mechanism (10) and moves it above the press-fitted copper-shaped special-shaped part for screwing. During screwing, the positioning seat (9) is driven to rotate by the tightening shaft to drive the copper-shaped special-shaped part to rotate together to complete the screwing action. After screwing is completed, the industrial robot grabs the screwed component through the aluminum long tube clamping mechanism (10) to complete the unloading action.

9. A method for automatically press-fitting and screwing a special-shaped component according to claim 8, characterized in that: In the above Step 1, during press-fitting, the transverse movement mechanism (702) moves left, the servo press (701) moves down, the guide cone (5) enters the hollow pressing head (703). Multiple side round holes are opened on the side wall of the pressing head (703). After the guide cone grabbing jaw extends into the side hole to clamp the guide cone, it moves to the press-fitting station through the transverse movement mechanism (702). The servo press (701) drives the pressing head (703) to move down. After the guide cone (5) is in place, the guide cone grabbing jaw (704) releases, and the pressing head (703) continues to move down for press-fitting. After press-fitting is completed, the guide cone grabbing jaw (704) clamps the guide cone (5), and the guide cone (5) is returned to its original position through the servo press (701) and the transverse movement mechanism (702).

10. A method for automatically pressing and screwing a special-shaped component according to claim 8, characterized in that: In the above Step 2, when the positioning seat (9) clamps the aluminum long tube, the telescopic shaft moves up under the elastic force of the spring bearing, pushing the three clamping blocks (902) to simultaneously move inward to squeeze the aluminum long tube. During rotation, the positioning seat (9) drives the tightening anti-rotation plate (901) through the tightening shaft to make the positioning seat (9) rotate for tightening. When the positioning seat (9) releases, the tightening anti-rotation plate (901) is pulled to release through the pull plate (14) and the stretching cylinder (15). When releasing, the telescopic shaft moves down under the pulling force, and the three clamping blocks (902) open under the elastic force. At this time, the workpiece can be taken out for unloading.