A separate component and housing assembly system for an angle grinder

Abstract

This invention relates to the field of automated assembly technology for power tools, specifically a system for assembling independent components and a housing for an angle grinder. The system includes an interconnected independent component assembly mechanism and a housing assembly mechanism. The independent component assembly mechanism includes a material handling assembly module located in the center, and a feeding module and a housing transfer module located on either side of the material handling assembly module. The housing assembly mechanism includes a screw tightening module located in the center, and a housing transfer module located on one side of the screw tightening module. The screw tightening module further includes a housing assembly module located directly above the housing transfer module. The housing assembly module is used to assemble the left and right housings located on the housing transfer module, and then the screw tightening module screws the left and right housings together. This system not only has a simple structure and high assembly efficiency, but also ensures high assembly accuracy. Compared with traditional manual operation, it can greatly reduce production costs and improve the product assembly qualification rate.

Description

Technical Field

[0001] This invention relates to the field of automated assembly technology for power tools, and more particularly to an assembly system for independent components and housings for an angle grinder. Background Technology

[0002] Handheld power tools are machines that perform mechanical functions by being driven by an electric motor or electromagnet. They can be categorized by use into: metal cutting, abrasive, and assembly tools. Angle grinders, as a type of abrasive tool, are also known as grinding machines or disc grinders and are mainly used for cutting, grinding, and brushing metals and stone.

[0003] The main components of an angle grinder include: head housing, left and right housings, rotor, bearings, transmission gears, controller, actuating linkage, and stator. Due to the large number of components and the complex connections between them, there is currently no fully automated assembly line for angle grinders in the industry. The common method to improve assembly efficiency is to use a semi-automatic, semi-manual assembly process, but this is highly dependent on manual labor.

[0004] The controller, toggle linkage, and stator are independent components of the angle grinder. During installation, they only need to be aligned with the corresponding mounting slots on the inner wall of the housing. After installation, the left and right housings are joined together and screwed on.

[0005] In the current technology, due to the special structure and assembly method of these components, there has been no good assembly equipment in the current automated assembly process of angle grinders. The most common method is to manually pick up the materials and then assemble them manually, which is not only laborious, but also has a low finished product qualification rate and extremely low efficiency.

[0006] Alternatively, a semi-manual, semi-automatic approach can be adopted. The material is fed onto an assembly line, and then manually retrieved. The controller, actuating linkage, and stator are then manually installed into the housing. The left and right housings are then screwed together, and the process is repeated.

[0007] It can be seen that the above-mentioned traditional solutions are not only time-consuming and labor-intensive, but also cannot achieve fully automated feeding and assembly between the controller, the toggle linkage, the stator and the housing, as well as between the left housing and the right housing. Therefore, they will severely restrict the efficiency of angle grinder assembly and increase the manufacturer's costs.

[0008] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Summary of the Invention

[0009] The purpose of this invention is to overcome the problems of the prior art and provide an assembly system for independent components and housings of an angle grinder. This system solves the technical problems of slow material feeding, low assembly qualification rate, and time-consuming material removal when assembling independent components of an angle grinder using fully manual or semi-manual methods. Furthermore, the manual operation during assembly makes it impossible to accurately fit the left and right housings together, resulting in significant cost gaps.

[0010] The above objectives are achieved through the following technical solutions:

[0011] An assembly system for separate components and a housing for an angle grinder includes an interconnected assembly mechanism for separate components and a housing assembly mechanism.

[0012] The independent component assembly mechanism includes a material picking and assembly module located in the middle, and a feeding module and a housing transfer module located on both sides of the material picking and assembly module; the material picking and assembly module picks up the independent component provided by the feeding module, moves it to the housing transfer module, and assembles the independent component onto the left or right housing transferred by the housing transfer module;

[0013] The housing assembly mechanism includes a screw tightening module located in the middle and a housing transfer module located on one side of the screw tightening module. The screw tightening module also includes a housing assembly module located directly above the housing transfer module. The housing assembly module is used to assemble the left housing and the right housing located on the housing transfer module, and then the screw tightening module screws the left housing and the right housing together.

[0014] Furthermore, there are three independent component assembly mechanisms, including a controller assembly mechanism, a toggle linkage assembly mechanism, and a stator assembly mechanism connected in sequence, and the housing assembly mechanism is connected to the stator assembly mechanism;

[0015] The housing transfer module is used to transfer the left and right housings sequentially along the same side of the controller assembly mechanism, the toggle linkage assembly mechanism, the stator assembly mechanism, and the housing assembly mechanism.

[0016] Furthermore, the housing transmission module is a double-speed transmission line, and a plurality of matching housing carriers are provided on the double-speed transmission line. The surface of the housing carrier is provided with a left housing clamping groove for placing the left housing and a right housing clamping groove for placing the right housing.

[0017] Furthermore, a housing assembly cylinder clamp is provided at the end of the left housing clamping groove, which can clamp the two sides of the assembled left housing and the right housing.

[0018] Furthermore, the feeding module includes a feeding platform, which includes a pallet feeding area and a pallet recycling area.

[0019] A first pallet lifting slide is provided in the pallet loading area and is vertically connected to the loading platform. A first pallet fork is connected to the slide seat of the first pallet lifting slide.

[0020] A second pallet lifting slide is provided in the pallet recycling area and is vertically connected to the loading platform. A second pallet fork is connected to the slide of the second pallet lifting slide.

[0021] A pallet translating slide is provided on the top of the loading platform frame. A suction claw support arm is connected to the slide base of the pallet translating slide, and a downward-facing pallet suction claw is connected to the suction claw support arm.

[0022] The pallet suction claw can pick up the pallet so that, driven by the pallet translation slide, the pallet on the first pallet fork is picked up and translated sequentially to the second pallet fork.

[0023] Furthermore, the material handling and assembly module includes a material handling and assembly platform, the top of which is equipped with a multi-axis robotic arm, and the multi-axis robotic arm is equipped with an independent component gripper that matches the shape of the independent component.

[0024] Furthermore, the screw tightening module includes a screw tightening bracket, the surface of which is provided with a first screw tightening slide, the slide base of the first screw tightening slide is connected to the slide base of a second screw tightening slide, and the first screw tightening slide and the second screw tightening slide are perpendicular to each other;

[0025] The second screw tightening slide is provided with a vertically connected third screw tightening slide. The slide of the third screw tightening slide is connected to a screw tightening support. The screw tightening support is connected to a screw tightening motor with its rotating shaft facing downward. The rotating shaft end of the screw tightening motor is connected to a screw rod that matches the screw.

[0026] Furthermore, the screw tightening bracket is also equipped with a vertical housing pressure plate cylinder. The piston end of the housing pressure plate cylinder is connected to a housing pressure plate, which can press down on the assembled housing for positioning.

[0027] Furthermore, the housing pressure plate is provided with several screw through holes corresponding to the screw holes on the housing, and the screw rod can pass through the screw through holes to screw the screw to the screw hole.

[0028] Furthermore, a screw rod guide seat is also provided on the screw tightening support, and a screw rod guide sleeve is provided on the screw rod guide seat for the screw rod to pass through, and the screw rod guide sleeve can pass through the screw through hole.

[0029] Beneficial effects

[0030] This invention provides an independent component and housing assembly system for an angle grinder. The independent component assembly mechanism enables the insertion of independent components onto the inner wall of the housing, while the housing assembly mechanism facilitates rapid assembly between the left and right housings. This system uses a single housing transfer module for housing transport, allowing for uninterrupted operation of different mechanisms. It features a simple structure, high assembly efficiency, and ensures high assembly accuracy. Compared to traditional manual operation, it significantly reduces production costs and improves the product assembly qualification rate. Attached Figure Description

[0031] Figure 1 This is a perspective view of an assembly system for independent components and housing of an angle grinder according to the present invention;

[0032] Figure 2 This is a top view of an assembly system for independent components and housing of an angle grinder according to the present invention;

[0033] Figure 3 This is a first-view structural schematic diagram of the independent component assembly mechanism in an independent component and housing assembly system for an angle grinder according to the present invention;

[0034] Figure 4 This is a second-view structural schematic diagram of the independent component assembly mechanism in an independent component and housing assembly system for an angle grinder according to the present invention;

[0035] Figure 5 This is a first-view structural schematic diagram of the feeding module in an independent component and housing assembly system for an angle grinder according to the present invention;

[0036] Figure 6 This is a second-view structural schematic diagram of the feeding module in an independent component and housing assembly system for an angle grinder according to the present invention;

[0037] Figure 7 This is a schematic diagram of the housing assembly mechanism in an independent component and housing assembly system for an angle grinder according to the present invention;

[0038] Figure 8 This is a schematic diagram of the housing transfer module in an independent component and housing assembly system for an angle grinder according to the present invention.

[0039] Illustration markings:

[0040] 1-Independent component assembly mechanism, 11-Material picking and assembly module, 111-Material picking and assembly platform, 112-Multi-axis robotic arm, 113-Independent component gripper, 12-Feeding module, 121-Feeding platform, 122-Pallet feeding area, 123-Pallet recycling area, 124-First pallet lifting slide, 125-First pallet fork, 126-Second pallet lifting slide, 127-Second pallet fork, 128-Pallet translation slide, 129-Suction claw support arm, 1210-Pallet suction claw;

[0041] 2-Housing assembly mechanism, 21-Screw tightening module, 211-Screw tightening bracket, 212-First screw tightening slide, 213-Second screw tightening slide, 214-Third screw tightening slide, 215-Screw tightening support, 216-Screw tightening motor, 217-Screw rod, 218-Housing pressure plate cylinder, 219-Housing pressure plate, 2110-Screw through hole, 2111-Screw rod guide seat, 2112-Screw rod guide sleeve, 22-Housing assembly module, 221-Housing assembly bracket, 222-Housing assembly slide, 223-Housing assembly gripper;

[0042] 3-Casing transmission module, 31-High-speed transmission line, 32-Casing carrier, 33-Left casing clamping slot, 34-Right casing clamping slot, 35-Casing assembly cylinder clamp;

[0043] 4-Actuating linkage assembly mechanism;

[0044] 5-Stator assembly mechanism;

[0045] 6-Tray;

[0046] 7-Left casing;

[0047] 8-Right casing;

[0048] 9-Controller assembly mechanism;

[0049] 10-Shell displacement robotic arm. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] like Figure 1 and 2As shown, an independent component and housing assembly system for an angle grinder is provided for installing independent components such as the controller, actuation linkage, and stator into the housing, and for assembling the left and right housings together. The system includes an independent component assembly mechanism 1 and a housing assembly mechanism 2 that are interconnected.

[0052] The independent component assembly mechanism 1 includes a material picking and assembly module 11 located in the middle, and a feeding module 12 and a housing transfer module 3 located on both sides of the material picking and assembly module 11. The material picking and assembly module 11 picks up the independent component provided by the feeding module 12, moves it to the housing transfer module 3, and assembles the independent component onto the left housing 7 or right housing 8 transferred by the housing transfer module 3.

[0053] The housing assembly mechanism 2 includes a screw tightening module 21 located in the middle and a housing transfer module 3 located on one side of the screw tightening module 21. The screw tightening module 21 also includes a housing assembly module 22 located directly above the housing transfer module 3. The housing assembly module 22 is used to assemble the left housing 7 and the right housing 8 located on the housing transfer module 3, and then the screw tightening module 21 screws the left housing 7 and the right housing 8 together.

[0054] The housing assembly module 22 includes a housing assembly bracket 221 that spans the housing transmission module 3. A housing assembly slide 222 is provided on the top of the housing assembly bracket 221. A housing assembly gripper 223 with the jaws facing downwards is connected to the slide of the housing assembly slide 222.

[0055] The housing assembly gripper 223 is a cylinder gripper that can move the right housing 8 to the upper part of the left housing 7 to achieve assembly.

[0056] As a specific embodiment of this system, the independent component assembly mechanism 1 has three components, including a controller assembly mechanism 9, a toggle linkage assembly mechanism 4, and a stator assembly mechanism 5 connected in sequence, and the housing assembly mechanism 2 is connected to the stator assembly mechanism 5;

[0057] The housing transfer module 3 is used to transfer the left housing 7 and the right housing 8 sequentially along the same side of the controller assembly mechanism 9, the toggle linkage assembly mechanism 4, the stator assembly mechanism 5 and the housing assembly mechanism 2, thereby realizing the assembly line intelligent component assembly of the transferred housings.

[0058] like Figure 8As shown, in this embodiment, the housing transmission module 3 is a double-speed transmission line 31. The double-speed transmission line 31 is provided with a plurality of matching housing carriers 32. The surface of the housing carrier 32 is provided with a left housing clamping groove 33 for placing the left housing 7 and a right housing clamping groove 34 for placing the right housing 8.

[0059] To facilitate clamping between the right housing 8 and the left housing 7 after assembly, a housing assembly cylinder clamp 35 is provided at the end of the left housing clamping groove 33. This clamp can hold both sides of the assembled left housing 7 and the right housing 8, thereby aligning the screw holes on the upper and lower housings.

[0060] like Figure 5 and 6 As shown, in this embodiment, the feeding module 12 includes a feeding platform 121, which includes a pallet feeding area 122 and a pallet recycling area 123, wherein:

[0061] A first pallet lifting slide 124 is provided in the pallet loading area 122 and is vertically connected to the loading platform 121. A first pallet fork 125 is connected to the slide of the first pallet lifting slide 124.

[0062] A second pallet lifting slide 126 is provided in the pallet recycling area 123 and is vertically connected to the loading platform 121. A second pallet fork 127 is connected to the slide of the second pallet lifting slide 126.

[0063] A pallet sliding slide 128 is provided on the top of the loading platform 121. A suction claw support arm 129 is connected to the slide of the pallet sliding slide 128, and a downward-facing pallet suction claw 1210 is connected to the suction claw support arm 129.

[0064] The pallet suction claw 1210 can pick up the pallet 6 so that, driven by the pallet translation slide 128, the pallet 6 on the first pallet fork 125 is picked up and translated to the second pallet fork 127 in sequence.

[0065] In this embodiment, an AGV (Automated Guided Vehicle) is used to move a pallet 6 loaded with individual components to the pallet loading area 122, and an AGV is used to transport an empty pallet 6 away from the pallet recycling area 123.

[0066] like Figure 3 and 4 As shown, the material picking and assembly module 11 in this embodiment includes a material picking and assembly platform 111. A multi-axis robotic arm 112 is provided on the top of the material picking and assembly platform 111. An independent component gripper 113 matching the shape of the independent component is provided on the multi-axis robotic arm 112.

[0067] It should be noted that the multi-axis robotic arm 112 uses commercially available equipment, with only its grippers modified to fit the shape of the independent component in this system. The movement of the multi-axis robotic arm 112 is controlled by an internal program.

[0068] like Figure 7 As shown, the screw tightening module 21 in this embodiment includes a screw tightening bracket 211. A first screw tightening slide 212 is provided on the surface of the screw tightening bracket 211. The slide of the first screw tightening slide 212 is connected to the slide of the second screw tightening slide 213. The first screw tightening slide 212 and the second screw tightening slide 213 are perpendicular to each other.

[0069] A third screw tightening slide 214 is also provided vertically connected on the second screw tightening slide 213. A screw tightening support 215 is connected to the slide of the third screw tightening slide 214. A screw tightening motor 216 with its rotating shaft facing downward is connected to the screw tightening support 215. A screw rod 217 matching the screw is connected to the rotating shaft end of the screw tightening motor 216.

[0070] Specifically, the first screw tightening slide 212, the second screw tightening slide 213, and the third screw tightening slide 214 constitute a three-dimensional space in which the coordinates of the screw rod 217 can be controlled along the XYZ axes.

[0071] To ensure a more reliable screw connection between the left and right housings, it is necessary to minimize the gap between them so that the screws can be screwed on smoothly.

[0072] Therefore, in this embodiment, a vertical housing pressure plate cylinder 218 is also provided on the screw tightening bracket 211. The piston end of the housing pressure plate cylinder 218 is connected to a housing pressure plate 219. The bottom of the housing pressure plate 219 is provided with a groove that matches the surface of the housing, so as to press down the assembled housing for positioning and tightening.

[0073] On the other hand, this embodiment also provides a plurality of screw through holes 2110 on the housing pressure plate 219 that correspond to the screw holes on the housing. The screw rod 217 can pass through the screw through holes 2110 to screw the screw to the screw hole.

[0074] Preferably, in order to ensure that the screw rod 217 can accurately pass through the screw through hole 2110, this embodiment also provides a screw rod guide seat 2111 on the screw tightening support 215. The screw rod guide seat 2111 is provided with a screw rod guide sleeve 2112 that allows the screw rod 217 to pass through. The screw rod guide sleeve 2112 can pass through the screw through hole 2110 to realize the screw connection of the housing screw.

[0075] like Figure 1 As shown, the assembled shell can also be removed by the shell transfer robot arm 10 located at the end of the system to collect the material, so that the next process can proceed.

[0076] The above description is merely illustrative of the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A separate component and housing assembly system for an angle grinder, characterized in that, It includes an interconnected independent component assembly mechanism (1) and a housing assembly mechanism (2). The independent component assembly mechanism (1) includes a material picking assembly module (11) located in the middle, and a feeding module (12) and a housing transfer module (3) located on both sides of the material picking assembly module (11); the material picking assembly module (11) picks up the independent component provided by the feeding module (12), the independent component being the controller, actuating linkage and stator of the angle grinder, and moves it to the housing transfer module (3), assembling the independent component onto the left housing (7) or right housing (8) transferred by the housing transfer module (3); The housing assembly mechanism (2) includes a screw tightening module (21) located in the middle and a housing transfer module (3) located on one side of the screw tightening module (21). The screw tightening module (21) also includes a housing assembly module (22) located directly above the housing transfer module (3). The housing assembly module (22) is used to assemble the left housing (7) and the right housing (8) located on the housing transfer module (3). The housing assembly module (22) includes a cross-section of the housing assembly module (21). The housing assembly bracket (221) of the housing transmission module (3) has a housing assembly slide (222) on the top of the housing assembly bracket (221). The housing assembly slide (222) has a housing assembly jaw (223) with the jaws facing down connected to the slide of the housing assembly slide (222). The housing assembly jaw (223) is a cylinder jaw, which can move the right housing (8) to the upper part of the left housing (7) to achieve assembly. Then, the left housing (7) and the right housing (8) are screwed together by the screw tightening module (21). The housing transmission module (3) is a double-speed transmission line (31). The double-speed transmission line (31) is provided with a number of matching housing carriers (32). The surface of the housing carrier (32) is provided with a left housing clamping groove (33) for placing the left housing (7) and a right housing clamping groove (34) for placing the right housing (8). At the end of the left housing clamping groove (33), a housing assembly cylinder clamp (35) is also provided, which can clamp the two sides of the assembled left housing (7) and the right housing (8).

2. The independent component and housing assembly system for an angle grinder according to claim 1, characterized in that, The independent component assembly mechanism (1) has three parts, including a controller assembly mechanism (9), a toggle linkage assembly mechanism (4) and a stator assembly mechanism (5) connected in sequence. The housing assembly mechanism (2) is connected to the stator assembly mechanism (5). The housing transmission module (3) is used to transmit the left housing (7) and the right housing (8) sequentially along the same side of the controller assembly mechanism (9), the toggle linkage assembly mechanism (4), the stator assembly mechanism (5) and the housing assembly mechanism (2).

3. The independent component and housing assembly system for an angle grinder according to claim 1, characterized in that, The feeding module (12) includes a feeding platform (121), which includes a pallet feeding area (122) and a pallet recycling area (123). A first pallet lifting slide (124) is provided in the pallet loading area (122) and is vertically connected to the loading platform (121). A first pallet fork (125) is connected to the slide of the first pallet lifting slide (124). A second pallet lifting slide (126) is provided in the pallet recycling area (123) and is vertically connected to the loading platform (121). A second pallet fork (127) is connected to the slide of the second pallet lifting slide (126). A pallet sliding slide (128) is provided on the top of the loading platform (121). A suction claw support arm (129) is connected to the slide of the pallet sliding slide (128), and a pallet suction claw (1210) facing downward is connected to the suction claw support arm (129). The pallet suction claw (1210) can pick up the pallet (6) so that, driven by the pallet translation slide (128), the pallet (6) on the first pallet fork (125) is picked up and translated to the second pallet fork (127) in sequence.

4. The independent component and housing assembly system for an angle grinder according to claim 1, characterized in that, The material handling and assembly module (11) includes a material handling and assembly platform (111), and a multi-axis robotic arm (112) is provided on the top of the material handling and assembly platform (111). The multi-axis robotic arm (112) is provided with an independent component gripper (113) that matches the shape of the independent component.

5. The independent component and housing assembly system for an angle grinder according to claim 1, characterized in that, The screw tightening module (21) includes a screw tightening bracket (211), and a first screw tightening slide (212) is provided on the surface of the screw tightening bracket (211). The slide of the first screw tightening slide (212) is connected to the slide of the second screw tightening slide (213). The first screw tightening slide (212) and the second screw tightening slide (213) are perpendicular to each other. The second screw tightening slide (213) is provided with a vertically connected third screw tightening slide (214). The slide of the third screw tightening slide (214) is connected to a screw tightening support (215). The screw tightening support (215) is connected to a screw tightening motor (216) with its rotating shaft facing downward. The rotating shaft end of the screw tightening motor (216) is connected to a screw rod (217) that matches the screw.

6. The independent component and housing assembly system for an angle grinder according to claim 5, characterized in that, The screw tightening bracket (211) is also equipped with a vertical housing pressure plate cylinder (218). The piston end of the housing pressure plate cylinder (218) is connected to a housing pressure plate (219). The housing pressure plate (219) can press down on the assembled housing for positioning.

7. The independent component and housing assembly system for an angle grinder according to claim 6, characterized in that, The housing pressure plate (219) has a plurality of screw through holes (2110) corresponding to the screw holes on the housing. The screw rod (217) can pass through the screw through holes (2110) to screw the screw to the screw hole.

8. The independent component and housing assembly system for an angle grinder according to claim 7, characterized in that, A screw rod guide seat (2111) is also provided on the screw tightening support (215). A screw rod guide sleeve (2112) is provided on the screw rod guide seat (2111) for the screw rod (217) to pass through. The screw rod guide sleeve (2112) can pass through the screw through hole (2110).

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