Automatic assembling equipment for wheel parts of model car

Abstract

The invention relates to automatic assembling equipment for wheel parts of a model car, and the equipment comprises an assembling unit which comprises a fixed car base and a first assembling clamp capable of moving to a plurality of assembling positions; the vehicle base selecting unit selects and provides a vehicle base meeting the mounting state and fixes the vehicle base to the first assembling clamp, and after the vehicle base is fixed, the first assembling clamp moves to the assembling position of the axle mounting unit. The axle installation unit enables an axle to penetrate through the assembly column to be installed on the vehicle base. When the wheel shaft is mounted on the vehicle base, the first assembling clamp moves to the assembling position corresponding to the fixedly-mounting and grabbing unit; the fixed mounting and grabbing unit comprises a hot melting device for melting the assembly column to form a limiting part for limiting the movement of the wheel shaft, and a grabbing device for moving the vehicle base to the wheel mounting unit after the limiting part is formed; the wheel mounting unit mounts wheels at two ends of the axle. The device is ingenious in structural design, automatic assembly of the wheel axle and the wheel can be achieved, the machining and production efficiency is greatly improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of model processing, and particularly to an automatic assembly device for a model car wheel component. Background Art

[0002] The wheel component includes front and rear wheel axles and wheels installed on both sides of the wheel axles. When assembling the model car wheel component, the front and rear wheel axles need to be installed at corresponding positions on the car base respectively, and then the wheels are assembled on both sides of the front and rear wheel axles. Manual material selection and assembly are the traditional assembly methods for model car wheel components. The wheel components are respectively contained in different trays. After the operator selects the required number of wheel components from the trays, they are manually assembled with the help of tooling fixtures. The assembly process of the model car wheel component is relatively cumbersome. The whole process takes a long time and has low efficiency when carried out manually; and certain technical requirements are needed for the operator, resulting in high labor costs; at the same time, the intensive and long-term labor operation is likely to cause the operator to be fatigued, affecting the assembly quality. Summary of the Invention

[0003] Based on this, the purpose of the present invention is to provide an automatic assembly device for a model car wheel component, with a clever structural design, which can realize the automatic assembly of the wheel axle and the wheel, greatly improving the processing and production efficiency and reducing the labor cost.

[0004] An automatic assembly device for a model car wheel component includes an assembly unit, a car base selection unit, a wheel axle installation unit, a fixing and grasping unit, and a wheel installation unit;

[0005] The assembly unit includes a first assembly fixture for fixing the car base, and the first assembly fixture can move to multiple assembly positions; several assembly columns protruding from the bottom surface are provided at the positions corresponding to the wheel axles at the front and rear of the car base, and the assembly columns are used for installing the wheel axles;

[0006] The car base selection unit is used to select and provide the car base in a conforming installation state and fix it on the first assembly fixture. When the car base is fixed, the first assembly fixture moves to the assembly position of the wheel axle installation unit;

[0007] The wheel axle installation unit is used to install the wheel axle through the assembly column on the car base; through holes corresponding to the assembly columns, having the same number and suitable size are provided on the wheel axle. The through holes are perpendicular to the extending direction of the wheel axle, and the hole length of the through hole is less than the length of the assembly column; when the wheel axle is installed on the car base, the first assembly fixture moves to the assembly position corresponding to the fixing and grasping unit;

[0008] The fixing and grasping unit includes a hot melting device and a grasping device. The hot melting device is used to melt the assembly column to form a limiting portion that restricts the movement of the wheel axle. After the limiting portion is formed, the grasping device moves the vehicle base to the wheel mounting unit.

[0009] The wheel mounting unit is used to mount wheels at both ends of the wheel axle.

[0010] Compared with the prior art, the present invention provides an automatic assembly device for model car wheel components. By simulating the process of fixing the wheel axle on the vehicle base and mounting the wheels at both ends of the wheel axle in manual assembly through a mechanical structure, the automatic installation of the wheel axle and the wheels is realized. The manual assembly by machinery replacing manual labor realizes automated production, which improves the processing and production efficiency on the one hand and reduces the labor cost on the other hand.

[0011] Further, the vehicle base selection unit includes: a vehicle base feeding device, a vehicle base screening device for changing the placement state of the vehicle base, an identification device for identifying the placement state of the vehicle base, a vehicle base grasping device for grasping the vehicle base with the correct placement orientation, and a first control device for controlling the vehicle base grasping device.

[0012] Further, the vehicle base feeding device includes a conveying device for guiding the vehicle base to the screening device and a vehicle base hopper for placing the vehicle base on the conveying device. The vehicle base screening device includes a first vibrator and a tray connected to the first vibrator. The tray is used to accommodate the vehicle base. The first vibrator vibrates to change the placement state of the vehicle base in the tray. The identification device includes a visual input lens for photographing the vehicle base placed in the tray. The visual input lens inputs the photographed information into the first control device. The first control device controls the first vibrator and the vehicle base grasping device. The first control device identifies the vehicle base and its placement state in the picture photographed by the visual input lens, marks the vehicle base that meets the installation state, and controls the vehicle base grasping device to grasp the marked vehicle base in the tray. The vehicle base feeding device of the automatic assembly device for model car wheel components in this solution provides vehicle base raw materials through the vehicle base hopper and the conveying device, then changes the placement state of the vehicle base in the tray through the first vibrator, and then identifies and selects the vehicle base with the assembly column facing up as the vehicle base that meets the installation state through the visual input lens and the first control device. This not only realizes the intelligent and automatic feeding of the vehicle base, but also facilitates the subsequent installation of the wheel axle, eliminating the need for manual screening or manual operation to flip the vehicle base, and further realizing automation.

[0013] Further, the wheel axle mounting unit includes a wheel axle mounting device, a wheel axle screening device for providing wheel axles to the wheel axle mounting device, and a wheel axle guide rail connecting the wheel axle screening device and the wheel axle mounting device; the wheel axle mounting device grabs a wheel axle from the wheel axle screening device and installs it on the vehicle base through the assembly column.

[0014] Further, the wheel axle screening device includes a wheel axle chute for accommodating wheel axles, a wheel axle spiral conveyor arranged inside the wheel axle chute, a second vibrator connected to the wheel axle spiral conveyor, a third vibrator fixedly connected to the wheel axle guide rail, and a first detection mechanism arranged at the middle position and / or the end of the wheel axle guide rail; the end of the wheel axle spiral conveyor is connected to the head end of the wheel axle guide rail; the wheel axle guide rail guides the wheel axle mounting device; under the vibration of the second vibrator, the wheel axles in the wheel axle chute are automatically and orderly arranged and move along the wheel axle spiral conveyor to the end of the wheel axle spiral conveyor and enter the wheel axle guide rail; the third vibrator vibrates to move the wheel axles on the wheel axle guide rail to the end of the wheel axle guide rail; the first detection mechanism detects whether there is material at the middle position and / or the end of the wheel axle guide rail; when the first detection mechanism detects that there is no material at the middle position and / or the end of the wheel axle guide rail, the second vibrator and the third vibrator start to vibrate; when the first detection mechanism detects that there is material at the middle position and / or the end of the wheel axle guide rail, the second vibrator and the third vibrator stop vibrating; the wheel axle mounting device includes a wheel axle clamp for grabbing the wheel axle, a first driving mechanism for driving the movement of the wheel axle clamp, and a pressing shaft device for passing the wheel axle clamped by the wheel axle clamp through the assembly column of the vehicle base and installing it on the vehicle base. An automatic assembly device for model car wheel components in this solution realizes the intelligent and automatic supply of wheel axle raw materials through the wheel axle spiral conveyor and the second vibrator, and realizes the automatic installation of the wheel axle through the wheel axle clamp, the first driving mechanism, and the pressing shaft device, improving the processing efficiency.

[0015] Further, the wheel mounting unit includes a second assembly fixture for fixing the vehicle base, two pressing wheel mechanisms correspondingly arranged on both sides of the second assembly fixture, and a wheel supply mechanism for providing wheels to the two pressing wheel mechanisms respectively; the pressing wheel mechanism is used for installing wheels.

[0016] Further, a positioning groove for accommodating the wheel is arranged at one end of the pressing wheel mechanism close to the second assembly fixture, and the positioning groove is adapted to the wheel; the pressing wheel mechanism includes a jacking rod device for pressing the wheel onto both ends of the wheel axle; the wheel supply mechanism transports the wheel to the positioning groove, and the jacking rod device presses the wheel in the positioning groove onto both sides of the wheel axle of the vehicle base on the second assembly fixture. An automatic assembly device for model car wheel components in this solution realizes the automatic installation of the wheel through the positioning groove and the jacking rod device, improving the processing efficiency.

[0017] Further, the wheel feeding mechanism includes a wheel screening device, a wheel guide rail guiding the positioning groove, a fifth vibrator fixedly connected to the wheel guide rail, and a second detection mechanism arranged at the middle position and / or the end of the wheel guide rail; the wheel guide rail is adapted to the wheel, and the end of the wheel guide rail guides the positioning groove; the wheel screening device includes a wheel chute for accommodating the wheels, a wheel spiral conveyor arranged inside the wheel chute, and a fourth vibrator connected to the wheel spiral conveyor; the end of the wheel spiral conveyor is connected to the head end of the wheel guide rail; under the vibration of the fourth vibrator, the wheels in the wheel chute are automatically and orderly arranged and move along the wheel spiral conveyor to the end of the wheel spiral conveyor and enter the wheel guide rail; the fifth vibrator vibrates to move the wheels on the wheel guide rail to the end of the wheel guide rail and enter the positioning groove one by one; the second detection mechanism detects whether there is material at the middle position and / or the end of the wheel guide rail; when the second detection mechanism detects that there is no material at the middle position and / or the end of the wheel guide rail, the fourth vibrator and the fifth vibrator start to vibrate; when the second detection mechanism detects that there is material at the middle position and / or the end of the wheel axle guide rail, the fourth vibrator and the fifth vibrator stop vibrating. An automatic assembly device for model car wheel components in this solution realizes the intelligent and automatic supply of wheel axle raw materials through the wheel spiral conveyor, the fourth vibrator, and the wheel guide rail.

[0018] Further, the assembly unit of the automatic assembly device for model car wheel components further includes a rotatable assembly platform, and the first assembly fixture is arranged on the assembly platform and the number is several; the car base selection unit, the wheel axle installation unit, and the fixing and grasping unit are distributed around the assembly platform; the assembly platform can rotate to make the car base on the first assembly fixture stop at the assembly positions corresponding to the car base selection unit, the wheel axle installation unit, and the fixing and grasping unit.

[0019] Further, the fixing and grasping unit further includes a movable slider; the slider can move between the assembly platform and the wheel mounting unit; the hot melting device is located on the side of the slider close to the assembly platform, and the grasping device is located on the side of the slider close to the assembly platform; the slider first moves to enable the hot melting device to melt the assembly column to form a limiting portion that restricts the movement of the wheel axle; the slider then moves to enable the grasping device to grasp the vehicle base and move it to the wheel mounting unit. At the same time, the assembly platform rotates so that the next first assembly fixture rotates to the assembly position corresponding to the fixing and grasping unit, and the hot melting device moves synchronously and melts the assembly column of the next vehicle base to form a limiting portion that restricts the movement of the wheel axle. An automatic assembly device for model car wheel components in this solution realizes the simultaneous fixing of the wheel axles and the movement of the vehicle bases on adjacent two first assembly fixtures through the cooperation between the assembly platform and the slider, saving the production process and further improving the production efficiency.

[0020] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the automatic assembly device for model car wheel components of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the vehicle base, the wheel axle, and the wheel of the present invention;

[0023] Figure 3 It is a schematic structural diagram and an A-A cross-sectional view of the model car wheel components after the automatic assembly is completed according to the present invention;

[0024] Figure 4 It is a schematic structural diagram of the vehicle base selection unit 1 of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the assembly unit 2 and the fixing and grasping unit 4 of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the wheel axle mounting unit 3 of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the wheel feeding mechanism 54 of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the pressing wheel mechanism 56 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application. It should be clear that the described embodiments are only some of the embodiments of the present application, not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the embodiments of the present application.

[0030] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0031] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. 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 situations.

[0035] In addition, in the description of the present application, unless otherwise stated, "a plurality of" means two or more. "And / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0036] It should be understood that the embodiments of the present application are not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the embodiments of the present application is only limited by the appended claims.

[0037] Please refer to Figure 1-3 , which is an automatic assembly device for model car wheel components, used for automatically assembling various components of a model car. The model car is assembled from a plurality of components including a car base 10, an axle 30, and wheels 50, etc.; several assembly columns 101 protruding from the bottom surface are respectively provided at the front and rear positions of the car base 10 corresponding to the axle 30, and the assembly columns 101 are used for installing the axle 30. Through holes 301 corresponding to the assembly columns 101, having the same quantity and suitable size are provided on the axle 30. The through holes 301 are perpendicular to the extending direction of the axle 30, and the hole length of the through holes 301 is less than the length of the assembly columns 101. The automatic assembly device for model car wheel components includes: An automatic assembly device for model car wheel components includes:

[0038] A car base selection unit 1, used for selecting and providing a qualified car base 10 in a suitable installation state. The car base in the suitable installation state is a car base with the assembly columns facing upwards.

[0039] An axle installation unit 3, used for installing the axle 30 on the car base by passing the axle 30 through the assembly columns 101. The axle 30 includes a front axle and a rear axle.

[0040] A fixing and grasping unit 4, including a hot melting device 42 and a grasping device 44. The hot melting device 42 melts the assembly columns 101 to form a limiting portion 1011 that restricts the movement of the assembly columns 101; the grasping device 44 is used for moving the car base.

[0041] A wheel mounting unit 5 for mounting wheels 50 at both ends of the axle 30.

[0042] An assembly unit 2 includes a rotatable assembly platform 22, a plurality of first assembly jigs 24 provided on the assembly platform 22, and a second control device 26 for controlling the vehicle chassis selection unit 1, the axle mounting unit 3, the fixing and grasping unit 4, and the wheel mounting unit 5. The first assembly jig 24 is used to fix the vehicle chassis. The assembly platform 22 can rotate to stop the vehicle chassis on the first assembly jig 24 at the assembly positions corresponding to the vehicle chassis selection unit 1, the axle mounting unit 3, and the fixing and grasping unit 4. The assembly position of the first assembly jig 24 corresponding to the vehicle chassis selection unit 1 is the vehicle chassis assembly position, the assembly position of the first assembly jig 24 corresponding to the axle mounting unit 3 is the axle assembly position, and the assembly position of the first assembly jig 24 corresponding to the wheel mounting unit 5 is the wheel fixing assembly position. The first assembly jig 24 is detachable and replaceable.

[0043] Please refer to Figure 1 and Figure 4 , the vehicle chassis selection unit 1 includes a vehicle chassis feeding device 12, a vehicle chassis screening device 14 for changing the placement state of the vehicle chassis, an identification device 16 for identifying the placement state of the vehicle chassis, a vehicle chassis gripping device 18 for gripping the vehicle chassis with the correct orientation, and a first control device 19 for controlling the vehicle chassis gripping device 18. The vehicle chassis feeding device 12 includes a conveying device 122 for guiding the vehicle chassis screening device 14 and a vehicle chassis hopper 124 for placing the vehicle chassis on the conveying device 122. The vehicle chassis screening device 14 includes a first vibrator 142 and a tray 144 connected to the first vibrator 142. The tray 144 is used to accommodate the vehicle chassis. The first vibrator 142 vibrates to change the placement state of the vehicle chassis in the tray 144. The identification device 16 includes a visual input lens 162. The visual input lens 162 is used to photograph the tray 144 and the vehicle chassis placed in the tray 144 and input the photographed information into the first control device 19. The first control device 19 controls the first vibrator 142 and the vehicle chassis gripping device 18. The first control device 19 identifies the placement state of the vehicle chassis in the picture photographed by the visual input lens 162, marks the vehicle chassis that meets the installation requirements, and controls the vehicle chassis gripping device 18 to grip the marked vehicle chassis in the tray 144.

[0044] In this embodiment, the vehicle base feeding device 12 further includes a first frame 121, and the conveying device 122 and the vehicle base hopper 124 are arranged on the first frame 121; the first frame 121 is an iron frame, which is arranged beside the vehicle base screening device 14 and the top of the first frame 121 is higher than the top of the vehicle base screening device 14. The conveying device 122 guides the tray 144, the vehicle base hopper 124 is arranged above the conveying device 122, and the discharge port of the vehicle base hopper 124 faces the conveying device 122; the conveying device 122 is preferably a conveyor belt; the first control device 19 also controls the conveying device 122. When the vehicle bases on the tray 144 reach a certain capacity, the first control device 19 controls the conveying device 122 to stop operating. The tray 144 is placed and fixed on the first vibrator 142. The vibration frequency and amplitude of the first vibrator 142 can be set through the first control device 19 to avoid scratching the surface of the vehicle base due to high-frequency repeated jitter, and the first control device 19 can control the immediate vibration of the first vibrator 142. The first control device 19 identifies, analyzes, selects the vehicle base with the assembly column 101 facing the visual input lens 162 and marks it, and controls the vehicle base gripper device 18 to grab the marked vehicle base in the tray 144 when the first vibrator 142 stops vibrating. When the first control device 19 fails to identify a vehicle base in a compliant installation state, the first control device 19 controls the first vibrator 142 to vibrate for a certain period of time and then stop, and then identifies, analyzes, and selects a vehicle base in a compliant installation state for marking again, and so on. The first control device 19 also has the function of identifying unqualified vehicle bases, such as damaged or missing ones; when the first control device 19 identifies an unqualified vehicle base, it alerts the operator by issuing an alarm or controls the vehicle base gripper device 18 to grab the unqualified vehicle base and place it in other storage devices.

[0045] As a further improvement of the above solution, a guiding structure is provided between the vehicle base feeding device 12 and the vehicle base screening device 14. Specifically, the guiding structure is a guide plate 13 with a smooth surface. The upper end of the guide plate 13 is fixed at a position close to the top of the conveying device 122 at one end of the first frame 121 facing the vehicle base screening device 14, and the lower end of the guide plate 13 is located above the edge of the tray 144.

[0046] As a further improvement of the above solution, the recognition device 16 further includes a light source 164 for facilitating the shooting of the visual input lens 162. In this embodiment, the light source 164 is located above the tray 144, and the visual input lens 162 is fixed to the light source 164.

[0047] The vehicle base gripping device 18 grips the vehicle base in a compliant installation state and transfers it to the assembly unit 2. Please refer to Figure 1 and Figure 3 , the assembly unit 2 includes an assembly platform 22 that can rotate in a plane, a plurality of first assembly jigs 24 fixed to the assembly platform 22, a divider (not shown) that drives the rotation of the assembly platform 22, and a second control device 26 that controls the divider. The vehicle base gripping device 18, the wheel axle mounting unit 3, and the fixing and gripping unit 4 are distributed around the assembly platform 22. The vehicle base gripping device 18 grips the vehicle base in a compliant installation state and fixes it to the first assembly jig 24 located at the vehicle base assembly position. The divider drives the rotation of the assembly platform 22 and causes the first assembly jig 24 to stop successively at the wheel axle assembly position and the wheel axle fixing assembly position, and finally returns to the vehicle base assembly position to perform the assembly of the next vehicle base.

[0048] In this embodiment, the assembly platform 22, the divider, and the second control device 26 are all provided on a main frame 21 for realizing wheel axle assembly. The assembly platform 22 is fixedly connected to the divider, and the assembly platform 22 is preferably a disc structure. The assembly platform 22 is provided with 4 first assembly jigs 24 evenly distributed in the peripheral part. The vehicle base selection unit 1, the wheel axle mounting unit 3, and the fixing and gripping unit 4 are distributed around the assembly platform 22 and are correspondingly arranged with the first assembly jigs 24. The second control device 26 is fixed to the main frame 21 and is electrically connected to the divider. Further, the second control device 26 includes a main machine electric control system and an intelligent operation control screen provided for the operator to manually control. The first control device 19 of the vehicle base selection unit 1 is linked with the second control device 26. The operations of the wheel axle mounting unit 3, the fixing and gripping unit 4, and the wheel mounting unit 5 are all controlled by the second control device 26.

[0049] Please refer to Figure 1 and Figure 6 , the wheel axle mounting unit 3 includes a wheel axle screening device 32, a wheel axle mounting device 34, and a wheel axle guide rail 36 connecting the wheel axle screening device 32 and the wheel axle mounting device 34. The wheel axle guide rail 36 is adapted to the wheel axle 30.

[0050] In this embodiment, the axle screening device 32 is arranged on a second frame 31 and is located on one side of the assembly platform 22; the axle screening device 32 includes an axle chute 322 for accommodating axles, an axle spiral conveyor 324 arranged inside the axle chute 322, and a second vibrator (not shown) connected to the axle spiral conveyor. The end of the axle spiral conveyor is connected to the head end of the axle guide rail 36; the axle guide rail 36 guides the axle installation device 34. The axle installation device 34 includes an axle clamp for gripping the axle 30, a first driving mechanism for driving the movement of the axle clamp, and a pressing device for installing the axle 30 gripped by the axle clamp through the assembly column of the vehicle base on the vehicle base; the axle clamp can also adjust the direction of the gripped axle 30; the axle clamp, the first driving mechanism, and the pressing device are all monitored and controlled by the second control device 26. The first driving mechanism drives the axle clamp and the pressing device to move synchronously between the end of the axle guide rail 36 and the assembly platform 22. Under the vibration of the second vibrator, the axles 30 in the axle chute 322 are automatically and orderly arranged and move upward along the axle spiral conveyor 324 to the end of the axle spiral conveyor 324 and enter the axle guide rail 36; after the first driving mechanism drives the axle clamp to move to the axle guide rail to grip the axle 30, it drives the axle clamp to move to the first assembly clamp 24 at the axle assembly position on the assembly platform 22 again, aligning the through hole 301 of the axle 30 with the assembly shaft of the vehicle base, and the pressing device installs the axle 30 through the assembly column 101 of the vehicle base on the first assembly clamp 24 on the vehicle base. In other embodiments, the pressing device may also be arranged above the first assembly clamp 24 at the axle assembly position. The first driving mechanism drives the axle clamp 342 to move between the end of the axle guide rail 36 and the assembly platform 22. The axle clamp moves the gripped axle 30 between the first assembly clamp 24 at the axle assembly position and the pressing device, and aligns the through hole 301 of the axle 30 with the assembly shaft of the vehicle base. The pressing device installs the axle 30 through the assembly column 101 of the vehicle base on the first assembly clamp 24 on the vehicle base.

[0051] As a further improvement of the above solution, special obstacles (not shown) for correcting the orientation and traveling direction of the axle 30 are provided on the axle spiral conveyor 324. Specifically, the special obstacles and the axle spiral conveyor 324 form a transmission channel and a non-transmission channel that conform to the shape of the axle 30. In addition, the special obstacles can flip the orientation of the axle 30 and change the traveling direction of the axle 30 by colliding with the axle 30, so that the axle 30 enters the transmission channel in the correct orientation and position; while the axles 30 with incorrect orientations re-enter the axle chute 322 from the non-transmission channel.

[0052] As a further improvement of the above solution, the wheel axle mounting unit 3 further includes a third vibrator 38 fixedly connected to the wheel axle guide 36 and a first detection mechanism (not shown) disposed at the middle position and / or the end of the wheel axle guide 36. The third vibrator 38 vibrates to move the wheel axle 30 on the wheel axle guide 36 to the end of the wheel axle guide 36. The first detection mechanism detects whether there is material at the middle position and / or the end of the wheel axle guide 36 through a sensor and sends a material presence / absence message to the second control device 26; when it is detected that there is no material at the middle position and / or the end of the wheel axle guide 36, the second control device 26 controls the second vibrator and the third vibrator 38 to start vibrating; when it is detected that there is material at the middle position and / or the end of the wheel axle guide 36, the second control device 26 controls the second vibrator and the third vibrator 38 to stop vibrating.

[0053] The model car wheel component automatic assembly device of this embodiment includes two such wheel axle mounting units 3, namely a front wheel axle mounting unit and a rear wheel axle mounting unit. The vehicle base selection unit 1, the front wheel axle mounting unit, the rear wheel axle mounting unit, and the fixing and grasping unit 4 are distributed around the assembly platform 22 and are correspondingly arranged one by one with the four first assembly jigs 24; the assembly position of the first assembly jig 24 corresponding to the front wheel axle mounting unit is the front wheel axle assembly position; the assembly position of the first assembly jig 24 corresponding to the rear wheel axle mounting unit is the rear wheel axle assembly position. The assembly platform 22 stops the first assembly jig 24 and the vehicle base fixed on the first assembly jig 24 at the front wheel axle assembly position and the rear wheel axle assembly position in sequence. The front wheel axle mounting unit mounts the front wheel axle through the assembly column 101 at the front of the vehicle base at the front position of the vehicle base, and the rear wheel axle mounting unit mounts the rear wheel axle through the assembly column 101 at the rear of the vehicle base at the rear position of the vehicle base. In other embodiments, the wheel axle mounting unit 3 can be single. By adjusting the rotation of the assembly platform 22, the position of the first assembly jig 24 is controlled, and the first drive mechanism is controlled to coordinate the pressing direction and the pressing position of the wheel axle 30 to respectively realize the installation of the front and rear wheel axles on the vehicle base.

[0054] Please refer to Figure 1 and Figure 7, the fixing and gripping unit 4 includes a movable hot-melt device 42 and a gripping device 44; the hot-melt device 42 is provided with 4 hot-melt columns corresponding to the assembly columns of the vehicle base. The hot-melt device 42 first moves above the first assembly fixture 22 located at the wheel assembly position, and then simultaneously melts the assembly columns 101 on the vehicle base with the front axle and rear axle already installed on the first assembly fixture 22 to form a limiting portion 1011 that restricts the movement of the wheel axle, thereby achieving the fixation of the model wheel axle. After fixation, the hot-melt device 42 moves away from above the first assembly fixture 22, and the gripping device 44 moves to the first assembly fixture 22, grips the vehicle base with the wheel axle fixed, and transfers it to the wheel installation unit 5.

[0055] In this embodiment, the fixing and gripping unit 4 is arranged on the main frame 21 and is located on one side of the assembly platform 22. The fixing and gripping unit 4 further includes a "T"-shaped frame 41 and a slider 43 that can move along the horizontal axis of the "T"-shaped frame 41; the "T"-shaped frame is arranged on the main frame 21, between the assembly platform 2 and the wheel installation unit 5. The horizontal axis of the "T"-shaped frame extends in the directions of the assembly platform 2 and the wheel installation unit 5 respectively, and the side of the horizontal axis of the "T"-shaped frame close to the assembly platform 2 is located above the corresponding first assembly fixture 24. The hot-melt device 42 of the fixing and gripping unit 4 is located on the side of the slider 43 close to the assembly platform 2, and the gripping device 44 is located on the side of the slider 43 close to the assembly platform 5.

[0056] In other embodiments, the hot-melt device 42 and the gripping device 44 can also move independently of each other.

[0057] Please refer to Figure 1 , Figure 7 and Figure 8, the wheel mounting unit 5 includes a second assembly fixture 52 for fixing the vehicle base, a wheel feeding mechanism 54 for providing wheels 50, and two pressing wheel mechanisms 56 correspondingly arranged on both sides of the second assembly fixture 52. The pressing wheel mechanisms 56 are used for mounting the wheels 50, and the wheel feeding mechanism 54 supplies the wheels 50 to the two pressing wheel mechanisms 56. The gripping device 44 of the fixing and gripping unit 4 grips the vehicle base with the wheel axle fixed and then transfers it to the second assembly fixture 52 for fixing. One end of the pressing wheel mechanism 56 close to the second assembly fixture 52 is provided with a positioning groove (not shown) for accommodating the wheel 50, and the positioning groove (not shown) is adapted to the wheel 50; the pressing wheel mechanism 56 includes a jacking rod device for pressing the wheel 50 onto both ends of the wheel axle 30. The wheel feeding mechanism 54 transports the wheels to the positioning groove of the pressing wheel mechanism 56, and the jacking rod device presses the wheels 50 in the positioning groove onto both sides of the wheel axle 30 on the vehicle base on the second assembly fixture 52. The wheel feeding mechanism 54 includes a wheel screening device 542 and a wheel guide rail 544 for guiding the positioning groove; the wheel guide rail 544 is adapted to the wheel 50.

[0058] In this embodiment, the wheel mounting unit 5 further includes a third frame body 51, and the wheel screening device 542 is disposed on the third frame body 51 and is located on one side of the assembly platform 22; the wheel screening device 542 includes a wheel chute 5422 for accommodating the wheel 50, a wheel spiral conveyor (not shown) disposed inside the wheel chute 5422, and a fourth vibrator (not shown) connected to the wheel spiral conveyor. The end of the wheel spiral conveyor is connected to the head end of the wheel guide rail 544; the end of the wheel guide rail 544 guides to the positioning groove 562. The pressing wheel mechanism 56 is fixed on the main frame 21, and the second assembly fixture 52 can move relative to the pressing wheel mechanism 56; specifically, the second assembly fixture 52 is controlled by a servo motor and moves perpendicular to the pressing direction of the pressing wheel mechanism 56. Under the vibration of the fourth vibrator, the wheels 50 in the wheel chute 5422 are automatically and orderly arranged and move upward along the wheel spiral conveyor to the end of the wheel spiral conveyor and enter the wheel guide rail 544, and then enter the positioning groove one by one along the wheel guide rail 544; the second assembly fixture 52 moves relative to the pressing wheel mechanism 56 so that the two ends of the front wheel shaft on the vehicle chassis of the second assembly fixture 52 are aligned with the centers of the wheels 50 on the positioning groove. The ejector rod device presses the wheels 50 in the positioning groove onto both sides of the front wheel shaft on the vehicle chassis of the second assembly fixture 52 and then resets, and the new wheels 50 enter the positioning groove; subsequently, the second assembly fixture 52 moves relative to the pressing wheel mechanism 56 so that the two ends of the rear wheel shaft on the vehicle chassis of the second assembly fixture 52 are aligned with the centers of the wheels 50 on the positioning groove. Similarly, the ejector rod device presses the wheels 50 in the positioning groove onto both sides of the rear wheel shaft on the vehicle chassis of the second assembly fixture 52 and then resets, and the new wheels 50 enter the positioning groove, thereby completing the installation of the wheels 50. Specifically, the ejector rod device includes an ejector rod and a cylinder for controlling the movement of the ejector rod. The installation order of the wheels 50 on the front and rear wheel shafts of the vehicle chassis (i.e., the moving direction of the second assembly fixture 52) can be adjusted according to actual production requirements.

[0059] In other embodiments, two positioning grooves may be respectively provided at one end of the pressing wheel mechanism 56 close to the second assembly fixture 52, and the distance between the centers of the wheels 50 in the two positioning grooves is the same as the distance between the front and rear wheel axles of the vehicle base; the pressing wheel mechanism 56 includes two ejector rod devices corresponding to the positioning grooves, and the ejector rod devices respectively press the wheels 50 in the corresponding positioning grooves onto both sides of the wheel axle 30 on the vehicle base on the second assembly fixture 52. In other embodiments, it may also be that two positioning grooves 562 are respectively provided at one end of the pressing wheel mechanism 56 close to the second assembly fixture 52, and the distance between the centers of the wheels 50 in the two positioning grooves is the same as the distance between the front and rear wheel axles of the vehicle base; the ejector rod devices of the pressing wheel mechanism 56 are provided with two ends corresponding to the positioning grooves, and the ejector rod devices synchronously press the wheels 50 in the positioning grooves onto both sides of the front and rear wheel axles on the vehicle base on the second assembly fixture 52.

[0060] As a further improvement of the above solution, the wheel mounting unit 5 further includes a fixing device 58 disposed above the second assembly fixture 52; the fixing device includes a fixing ejector rod that presses the vehicle base against the second assembly fixture 52 and a cylinder that controls the fixing ejector rod. In this embodiment, the fixing device 58 is disposed between the wheel guide rails 544 that guide the positioning grooves on both sides of the second assembly fixture 52 and is fixedly connected to the two wheel guide rails 544. When the second assembly fixture 52 moves between the pressing wheel mechanisms 56 so that the two ends of the wheel axle 30 on the vehicle base on the second assembly fixture 52 are aligned with the centers of the wheels 50 on the positioning grooves, the cylinder of the fixing device pushes the fixing ejector rod to press against the surface of the vehicle base on the second assembly fixture 52, so that the vehicle base on the second assembly fixture 52 cannot move; after the ejector rod devices of the pressing wheel mechanism 56 press the wheels 50 in the positioning grooves onto both sides of the wheel axle 30 on the vehicle base on the second assembly fixture 52, the cylinder of the fixing device controls the fixing ejector rod to move upward away from the surface of the vehicle base on the second assembly fixture 52. The fixing device 58 can prevent the vehicle base on the second assembly fixture 52 from shifting during the process of the ejector rod devices of the pressing wheel mechanism 56 pressing the wheels 50 onto both sides of the wheel axle 30, resulting in the wheels 50 not being smoothly installed.

[0061] As a further improvement of the above solution, the distance between the first assembly fixture 22 corresponding to the fixing and gripping unit 4 and the wheel mounting unit 5 and the second assembly fixture 52 is the same as the distance between the hot melting device 42 and the gripping device 44, and the connection line between the first assembly fixture 22 and the second assembly fixture 52 is parallel to the moving direction of the slider 43, so that when the gripping device 44 of the fixing and gripping unit 4 is transferred above the second assembly fixture 52 of the wheel mounting unit 5, the hot melting device 42 is moved above the first assembly fixture 24, so that while the gripping device 44 transfers the fixed vehicle base, the hot melting device 42 completes the wheel axle fixing of the vehicle base on the next first assembly fixture 22, thereby realizing the wheel axle fixing and transfer of the two model vehicle bases by the fixing and gripping unit 4 at one time, reducing the process and improving the processing efficiency.

[0062] As a further improvement of the above solution, the wheel feeding mechanism 54 further includes a fifth vibrator (not shown) fixedly connected to the wheel guide rail 544 and a second detection mechanism (not shown) provided at the middle position and / or the end of the wheel guide rail 544. The fifth vibrator vibrates to move the wheels 50 on the wheel guide rail 544 to the end of the wheel guide rail 544. The second detection mechanism detects whether there is material at the middle position and / or the end of the wheel guide rail 544 through a sensor and sends the material presence or absence information to the second control device 26; when it is detected that there is no material at the middle position and / or the end of the wheel guide rail 544, the second control device 26 controls the fourth vibrator and the fifth vibrator 546 to start vibrating; when it is detected that there is material at the end of the wheel axle guide rail 544, the second control device 26 controls the fourth vibrator and the fifth vibrator 546 to stop vibrating.

[0063] As a further improvement of the above solution, special obstacles (not shown) for correcting the orientation and traveling direction of the wheels 50 are provided on the wheel spiral conveying channel. Specifically, the special obstacles and the wheel spiral conveying channel form a transmission channel and a non-transmission channel conforming to the outer shape of the wheels 50. In addition, the special obstacles can flip the orientation of the wheels 50 and change the traveling direction of the wheels 50 by colliding with the wheel axles 30, so that the wheels 50 enter the transmission channel in the correct orientation; while the wheels 50 with incorrect orientations re-enter the wheel chute 5422 from the non-transmission channel.

[0064] An automatic assembly device for model vehicle wheel components of the present invention further includes a discharging device 6 for gripping the vehicle base on the second assembly fixture 52 and transferring it.

[0065] In this embodiment, the discharging device 6 is arranged beside the second assembly fixture 52 and fixed on the main frame 21. After the wheel 50 is assembled, the second assembly fixture 52 is moved out between the pressing wheel mechanisms 56, and the discharging device 6 is moved above the second assembly fixture 52 to grab the assembled vehicle chassis on the second assembly fixture 52 and slide it into the loading box placed beside the main frame 21 through a slideway arranged on the edge of the main frame 21.

[0066] An automatic assembly device for a model car wheel component of the present invention has the following working process:

[0067] The raw material of the vehicle base slides from the discharge port of the vehicle base hopper 124 to the conveying device 122 and is conveyed to the tray 144. The first vibrator 142 vibrates for 2 - 3 seconds to cause the vehicle base on the tray 144 to flip, rotate, move, and be evenly distributed in the tray 144. After the first vibrator 142 stops vibrating, the first control device 19 identifies the placement state of the vehicle base in the picture taken by the vision input lens 162 and marks the vehicle bases that meet the installation state, and controls the vehicle base gripper device 18 to grab the marked vehicle bases and place and fix them on the first assembly fixture 24 at the vehicle base assembly position on the assembly platform 22. The divider drives the assembly platform 22 to rotate so that the first assembly fixture 24 with the vehicle base rotates to the front wheel axle assembly position. The axle fixture of the front wheel axle installation unit grabs the axle and moves it to the first assembly fixture 24 at the front wheel axle assembly position, and aligns the through hole 301 of the axle with the assembly shaft at the front part of the vehicle base. The pressing device installs the axle through the assembly column 101 at the front part of the vehicle base on the first assembly fixture 24 onto the vehicle base. Similarly, the divider drives the assembly platform 22 to rotate so that the first assembly fixture 24 with the vehicle base after the front wheel axle is installed rotates to the rear wheel axle assembly position. The axle fixture of the rear wheel axle installation unit grabs the axle and moves the axle to the first assembly fixture 24 with the vehicle base after the front wheel axle is installed, aligns the through hole 301 of the axle 30 with the assembly shaft at the rear part of the vehicle base, and the pressing device installs the axle through the assembly column 101 at the rear part of the vehicle base onto the vehicle base. The divider drives the assembly platform 22 to rotate so that the first assembly fixture 24 with the vehicle base after the front and rear wheel axles are installed rotates to the wheel assembly position. The slider 43 moves along the transverse axis of the "T" - shaped frame 41 towards the assembly platform 22, causing the hot - melting device 42 to first move above the first assembly fixture 24 with the vehicle base after the axle is installed. The hot - melting device 42 melts the assembly column 101 on the vehicle base to form a limiting portion 1011 that restricts the movement of the axle, thereby realizing the fixation of the axle. After fixation, the slider 43 continues to move along the transverse axis of the "T" - shaped frame 41 towards the assembly platform 22, causing the gripping device 44 to move above the first assembly fixture 24. The gripping device 44 grabs the vehicle base with the axle fixed from the first assembly fixture 24 and transfers it to the second assembly fixture 52 of the wheel installation unit 5. The second assembly fixture 52 is controlled by the servo - motor to move relative to the pressure wheel mechanism 56 so that the two ends of the front wheel axle on the vehicle base on the second assembly fixture 52 are respectively aligned with the centers of the wheels 50 in the positioning grooves 562 of the two pressure wheel mechanisms 56. The cylinder of the fixing device 58 pushes the fixed ejector rod to press against the surface of the vehicle base on the second assembly fixture 52. The ejector rod device presses the wheels 50 in the positioning grooves of the pressure wheel mechanism 56 onto both sides of the front wheel axle on the vehicle base on the second assembly fixture 52 and then resets, and the new wheels 50 enter the positioning grooves. The cylinder of the fixing device 58 controls the fixed ejector rod to leave the surface of the vehicle base on the second assembly fixture 52.The second assembly fixture 52 continues to be controlled by the servo motor to move relative to the pressure wheel mechanism 56 so that the two ends of the rear wheel axle on the vehicle chassis on the second assembly fixture 52 are aligned with the centers of the wheels 50 on the positioning grooves. The cylinder of the fixing device 58 pushes the fixing ejector rod to press against the surface of the vehicle chassis on the second assembly fixture 52 again. The ejector rod device 564 presses the wheels 50 in the positioning grooves 562 onto both sides of the rear wheel axle on the vehicle chassis on the second assembly fixture 52 and then resets, completing the wheel assembly of the vehicle chassis on the second assembly fixture 52. The cylinder of the fixing device 58 controls the fixing ejector rod to leave the surface of the vehicle chassis on the second assembly fixture 52. Subsequently, the second assembly fixture 52 continues to be controlled by the servo motor to move out from between the two pressure wheel mechanisms 56 and move to beside the discharging device 6; the discharging device 6 moves above the second assembly fixture 52, grabs the vehicle chassis with the assembly completed on the second assembly fixture 52 and places the vehicle chassis into the loading box beside the main frame 21 through the slideway; thus, the automatic assembly of the model wheel axle and wheel components is completed. The operator only needs to debug the device and equipment before the assembly operation, add raw materials to the vehicle chassis hopper 124, the wheel axle chute 322, and the wheel chute 5422, and start the automatic assembly equipment for the model vehicle wheel components of the present invention to achieve the automatic assembly of the model wheel axle and wheel components, improving the processing and production efficiency and reducing the labor cost.

[0068] In addition, while the grasping device 44 grabs and transfers the vehicle chassis with the wheel axle fixedly installed to the second assembly fixture 52, the divider drives the assembly platform 22 to rotate so that the next first assembly fixture 24 with the vehicle chassis having the wheel axle installed completed rotates to the assembly position corresponding to the fixing and grasping unit 4. When the grasping device 44 moves above the second assembly fixture 52, the hot melting device 42 moves above the next first assembly fixture 24 with the vehicle chassis having the wheel axle installed completed and fixedly installs the wheel axle on the next vehicle chassis in the same way, saving processes and further improving the production efficiency.

[0069] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and the present invention also intends to include these modifications and improvements.

Claims

1. An automatic assembly equipment for wheel components of a model car, characterized in that: include: Assembly unit, vehicle chassis selection unit, axle installation unit, fixing and grabbing unit and wheel installation unit; The assembly unit comprises a first assembly fixture for fixing the vehicle base, and the first assembly fixture can be moved to multiple assembly positions; the front and rear parts of the vehicle base corresponding to the wheel axle are each provided with a plurality of assembly columns protruding from the bottom surface, and the assembly columns are used to install the wheel axle; The vehicle base selection unit is used to select and provide the vehicle base that meets the installation state and fix it on the first assembly fixture. When the vehicle base is fixed, the first assembly fixture moves to the assembly position of the wheel axle installation unit; The wheel axle installation unit is used to install the wheel axle on the vehicle base through the assembly column; the wheel axle is provided with through holes corresponding to the assembly columns, the same number and the same size, the through holes are perpendicular to the extension direction of the wheel axle, and the hole length of the through holes is less than the length of the assembly column; when the wheel axle is installed on the vehicle base, the first assembly fixture moves to the assembly position corresponding to the fixing and grabbing unit; The fixing and grabbing unit comprises a hot-melt device and a grabbing device, wherein the hot-melt device is used to melt the assembly column to form a limit portion for limiting the movement of the wheel axle; after the limit portion is formed, the grabbing device moves the vehicle base to the wheel mounting unit; The wheel mounting unit is used to mount the wheels on both ends of the wheel axle.

2. The automatic assembly equipment for model car wheel parts according to claim 1, characterized in that: The vehicle base selection unit includes: a vehicle base feeding device, a vehicle base screening device for changing the placement state of the vehicle base, an identification device for identifying the placement state of the vehicle base, a vehicle base grasping device for grasping the vehicle base with the correct orientation, and a first control device for controlling the vehicle base grasping device.

3. The automatic assembly equipment for model car wheel parts according to claim 2, characterized in that: The vehicle base feeding device includes a conveying device leading to the vehicle base screening device and a vehicle base hopper for placing the vehicle base on the conveying device; the vehicle base screening device includes a first vibrator and a tray connected to the first vibrator; the tray is used to accommodate the vehicle base; the first vibrator vibrates to change the placement state of the vehicle base in the tray; the recognition device includes a visual input lens for photographing the vehicle base placed in the tray, and the visual input lens inputs the photographing information into the first control device; The first control device controls the first vibrator and the vehicle base gripping device; The first control device identifies the vehicle base and its placement status in the image captured by the visual input lens, marks the vehicle base that meets the installation status, and controls the vehicle base grasping device to grasp the marked vehicle base in the tray.

4. The automatic assembly equipment for model car wheel parts according to claim 1, characterized in that: The wheel axle installation unit includes a wheel axle installation device, an axle screening device for providing the wheel axle to the wheel axle installation device, and an axle guide rail connecting the wheel axle screening device and the wheel axle installation device; the wheel axle installation device grabs the wheel axle from the wheel axle screening device and installs it on the vehicle base through the assembly column.

5. The automatic assembly equipment for model car wheel parts according to claim 4, characterized in that: The wheel axle screening device comprises an axle trough for accommodating wheel axles, an axle spiral conveyor arranged inside the axle trough, a second vibrator connected to the axle spiral conveyor, a third vibrator fixedly connected to the axle guide rail, and a first detection mechanism arranged at the middle section and / or the end of the axle guide rail; the end of the axle spiral conveyor is connected to the head end of the axle guide rail; the axle guide rail guides the wheel axle installation device; under the vibration of the second vibrator, the axles in the wheel axle trough are automatically arranged in order and move along the axle spiral conveyor to the end of the axle spiral conveyor and enter the axle guide rail; the third vibrator vibrates to make the wheel axle The wheel axle on the guide rail moves to the end of the wheel axle guide rail; the first detection mechanism detects whether there is material in the middle position and / or the end of the wheel axle guide rail; when the first detection mechanism detects that there is no material in the middle position and / or the end of the wheel axle guide rail, the second vibrator and the third vibrator start to vibrate; when the first detection mechanism detects that there is material in the middle position and / or the end of the wheel axle guide rail, the second vibrator and the third vibrator stop vibrating; the wheel axle installation device includes an axle clamp for grabbing the wheel axle, a first driving mechanism for driving the wheel axle clamp to move, and a pressing device for installing the wheel axle clamped by the wheel axle clamp on the vehicle base through the vehicle base assembly column.

6. The automatic assembly equipment for model car wheel parts according to claim 1, characterized in that: The wheel installation unit comprises a second assembly fixture for fixing the vehicle base, two pressing wheel mechanisms correspondingly arranged on both sides of the second assembly fixture, and a wheel feeding mechanism for providing wheels to the two pressing wheel mechanisms respectively; the pressing wheel mechanisms are used to install wheels.

7. The automatic assembly equipment for model car wheel parts according to claim 6, characterized in that: The wheel pressing mechanism is provided with a positioning groove for accommodating the wheel at one end close to the second assembly fixture, and the positioning groove is adapted to the wheel; the wheel pressing mechanism includes a push rod device for pressing the wheel into both ends of the wheel axle; the wheel feeding mechanism transports the wheel to the positioning groove, and the push rod device presses the wheel in the positioning groove into both sides of the wheel axle of the vehicle base on the second assembly fixture.

8. The automatic assembly equipment for model car wheel parts according to claim 7, characterized in that: The wheel feeding mechanism comprises a wheel screening device, a wheel guide rail guiding the positioning groove, a fifth vibrator fixedly connected to the wheel guide rail, and a second detection mechanism arranged at the middle section and / or the end of the wheel guide rail; the wheel guide rail is adapted to the wheel, and the end of the wheel guide rail guides the positioning groove; the wheel screening device comprises a wheel trough for accommodating the wheel, a wheel spiral conveyor arranged inside the wheel trough, and a fourth vibrator connected to the wheel spiral conveyor; the end of the wheel spiral conveyor is connected to the head end of the wheel guide rail; under the vibration of the fourth vibrator, the wheel in the wheel trough is vibrated. The wheels are automatically arranged in an orderly manner and move along the wheel spiral conveyor to the end of the wheel spiral conveyor and enter the wheel guide rail; the fifth vibrator vibrates to make the wheels on the wheel guide rail move to the end of the wheel guide rail and enter the positioning groove one by one; the second detection mechanism detects whether there is material in the middle position and / or the end of the wheel guide rail; when the second detection mechanism detects that there is no material in the middle position and / or the end of the wheel guide rail, the fourth vibrator and the fifth vibrator start to vibrate; when the second detection mechanism detects that there is material in the middle position and / or the end of the wheel axle guide rail, the fourth vibrator and the fifth vibrator stop vibrating.

9. The automatic assembly equipment for model car wheel parts according to any one of claims 1 to 8, characterized in that: The assembly unit also includes a rotatable assembly platform, and the first assembly fixtures are arranged on the assembly platform, and the number is several; the vehicle base selection unit, the wheel axle installation unit, and the fixing and grabbing unit are distributed around the assembly platform; the assembly platform can be rotated so that the vehicle base on the first assembly fixture stops at the assembly position corresponding to the vehicle base selection unit, the wheel axle installation unit and the fixing and grabbing unit.

10. The automatic assembly equipment for model car wheel parts according to claim 9, characterized in that: The fixing and grabbing unit also includes a movable slider; the slider can move between the assembly platform and the wheel mounting unit; the hot melt device is located on the side of the slider close to the assembly platform, and the grabbing device is located on the side of the slider close to the assembly platform; the slider first moves to allow the hot melt device to melt the assembly column to form a limit portion for limiting the movement of the wheel axle; the slider then moves to allow the grabbing device to grab the vehicle base and move it to the wheel mounting unit, and at the same time the assembly platform rotates to allow the next first assembly fixture to rotate to the assembly position corresponding to the fixing and grabbing unit, and the hot melt device moves synchronously and melts the assembly column of the next vehicle base to form a limit portion for limiting the movement of the wheel axle.

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