Motor screw assembly line

Abstract

The invention discloses a motor screw assembly line, and particularly relates to the technical field of screw assembly, the motor screw assembly line comprises a first assembly line and a second assembly line, an assembly component is arranged between the first assembly line and the second assembly line, the second assembly line comprises two first mounting supports, and the two first mounting supports are connected through a cross shaft; a plurality of baffles are further fixed to the outer surface of the first installation support. According to the motor screw assembly line, vertical directional conveying of screws is achieved through synchronous transmission of the double conveying belts and the baffles, and in cooperation with the combined design of magnetic adsorption of the screw bits and elastic stretching and retracting of the spring telescopic rods, it can be ensured that the screws are adsorbed stably through magnetism in the taking and placing process, and falling is avoided; pressure can be automatically adjusted through elastic buffering, part damage caused by rigid contact is prevented, meanwhile, the meshing precision of the screw groove is optimized through a friction tooth inclined guiding structure, slipping is reduced, abrasion is reduced, the reliability of screw assembly is comprehensively improved, and the service life of parts is comprehensively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of screw assembly, in particular to a motor screw assembly line. Background Art

[0002] In the field of motor automation production, screw assembly is a key process, and its efficiency and precision directly affect motor production capacity and quality. Existing motor screw assembly technology mainly relies on traditional assembly line equipment.

[0003] However, the following significant defects have been exposed in actual applications: the existing technology mostly uses a single conveyor belt or a simple slide to transport screws, which causes the screws to easily fall over or accumulate due to vibration, uneven speed and other problems during the transmission process, requiring frequent shutdowns and adjustments, seriously affecting assembly efficiency. Traditional adsorption devices mostly rely on rigid mechanical claws or single vacuum adsorption. Rigid contact can easily cause deformation of the screw cap or scratches on the motor surface, and it is easy to deviate and slip when inserted into the screw slot, and even cause the risk of subsequent screw loosening due to loose bite. Summary of the Invention

[0004] The main purpose of the present invention is to provide a motor screw assembly line, which can effectively solve the problems that screws are easy to fall off and are prone to deviation and slipping when inserted into screw slots.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A motor screw assembly line includes a first assembly line and a second assembly line, wherein an assembly component is provided between the first assembly line and the second assembly line;

[0007] The assembly line 2 includes two mounting brackets 1, and a transmission belt is provided at one end of the two mounting brackets 1 close to each other. The two mounting brackets 1 are connected by a cross axis, and multiple baffles are also fixed on the outer surface of the mounting bracket 1.

[0008] Preferably, the assembly component includes a gantry, a slide rail is fixed to the lower end of the horizontal part of the gantry, a hydraulic rod slides inside the slide rail, a ring motor is fixed to the output end of the hydraulic rod, a mounting column is fixed to the lower end of the ring motor, a mounting bracket 2 is fixed to the output end of the ring motor, a screw assembly is provided on the outer surface of the mounting bracket 2, and a limiting assembly is provided on the outer surface of the mounting column.

[0009] Preferably, the screw tightening assembly includes a sliding rod passing downward, a spring telescopic rod is fixed to the lower end of the sliding rod, a tightening motor is fixed to the output end of the spring telescopic rod, a guide rod is fixed to the outer surface of the fixed end of the spring telescopic rod, and a screw driver bit is also fixed to the output end of the tightening motor.

[0010] Preferably, the screw bit is magnetic, and the side wall of the screw bit is further provided with a plurality of friction teeth, and the outer portions of the friction teeth are inclined upward.

[0011] Preferably, the limiting assembly includes a fixing ring 1 fixed to the surface of the mounting column, and two horizontal grooves 1 are symmetrically provided on the outer surface of the fixing ring 1.

[0012] Preferably, the two horizontal grooves 1 are connected end to end through U-shaped groove 1 and U-shaped groove 2 to form a complete limiting groove 1.

[0013] Preferably, the U-shaped groove 1 is located above the assembly line 2, and when the guide rod is located at the lowest point of the U-shaped groove 1, the screw bit is located directly above the assembly line 2;

[0014] The second U-shaped groove is located above the first assembly line. When the guide rod is located at the lowest point of the second U-shaped groove, the screw bit is located directly above the first assembly line.

[0015] Preferably, the limiting assembly includes a second fixing ring fixed to the surface of the mounting column, a second horizontal groove is provided on the outer surface of the second fixing ring, and a third U-shaped groove is provided at the notch of the second horizontal groove.

[0016] Preferably, the second horizontal groove and the third U-shaped groove are connected end to end to form a complete limiting groove second.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This motor assembly line uses dual conveyor belts for synchronous transmission and baffles to achieve vertical and directional screw transportation. Combined with the combined design of magnetic adsorption of screw bits and elastic expansion and contraction of spring telescopic rods, the magnetism ensures stable adsorption of screws to prevent them from falling during the placement process, and the elastic buffer automatically adjusts the pressure to prevent component damage caused by rigid contact. At the same time, the friction tooth inclined guide structure optimizes the screw groove engagement accuracy, reduces slippage and wear, and comprehensively improves the reliability of screw assembly and component life.

[0019] 2. This motor assembly line is based on the modular design of the limit slot limit components and the hydraulic rod horizontal sliding mechanism. The device can be switched through the guide rod trajectory to flexibly adapt to the assembly needs of single or multiple screws (continuous operation of cyclic pick-and-place is realized in the single-screw scenario, and multi-axis synchronous positioning and tightening is supported in the multi-screw scenario). Combined with the fully automatic process driven by the ring motor rotation, it greatly shortens the assembly time of a single motor, reduces the frequency of manual intervention, and significantly improves the automated production efficiency of the assembly line and the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 It is a structural schematic diagram of the assembly components of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle;

[0024] Figure 5 The expansion of the limit assembly of the present invention Figure 1 ;

[0025] Figure 6 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 7 The expansion of the limit assembly of the present invention Figure 2 .

[0027] In the figure: 1- assembly line 1; 11- assembly line 2; 111- mounting bracket 1; 112- cross shaft; 113- baffle;

[0028] 2-Assembly component; 21-Gantry; 22-Slide rail; 23-Hydraulic rod; 24-Ring motor; 25-Mounting column; 26-Mounting bracket 2; 27-Screw assembly; 28-Limiting assembly;

[0029] 271 - sliding rod; 272 - spring telescopic rod; 273 - tightening motor; 274 - guide rod; 275 - screwdriver bit; 276 - friction tooth;

[0030] 281-fixing ring 1; 282-horizontal groove 1; 283-U-shaped groove 1; 284-U-shaped groove 2; 285-fixing ring 2; 286-horizontal groove 2; 287-U-shaped groove 3. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] Example 1

[0033] like Figure 1 As shown, a motor screw assembly line includes an assembly line 1 for conveying motors and an assembly line 2 11 for conveying screws. An assembly component 2 is provided between the assembly line 1 and the assembly line 2 11.

[0034] like Figure 1 and Figure 2As shown, the assembly line 2 11 includes two mounting brackets 111, and a transmission belt is provided at one end of the two mounting brackets 111 close to each other. Furthermore, in order to ensure that the transmission speed of the two mounting brackets 111 is the same, the two mounting brackets 111 are connected by a cross shaft 112. The design of two assembly lines 2 11 is adopted, and a gap is left between the two assembly lines 2 11, so that the screws are in a vertical state when the assembly line 2 11 transmits the screws, which is convenient for removing the screws. A plurality of baffles 113 are also fixed to the outer surface of the mounting bracket 111, wherein the plurality of baffles 113 are used to limit the screw cap part so that the screws will not pile up when the device transports the screws.

[0035] like Figure 3-Figure 6 As shown, the assembly component 2 includes a gantry 21, a slide rail 22 is fixed to the lower end of the horizontal part of the gantry 21, and a hydraulic rod 23 slides inside the slide rail 22. Due to the design of the sliding connection between the slide rail 22 and the hydraulic rod 23, the screw tightening component 27 can move left and right relative to the gantry 21, and a ring motor 24 is fixed to the output end of the hydraulic rod 23, and a mounting column 25 is fixed to the lower end of the ring motor 24. The fixed end of the ring motor 24 is fixedly connected to the hydraulic rod 23 and the mounting column 25, and a mounting bracket 26 is fixed to the output end of the ring motor 24. The outer surface of the mounting bracket 26 is provided with a screw tightening component 27, and the outer surface of the mounting column 25 is provided with a limiting component 28.

[0036] like Figure 3 and Figure 4 As shown, the screw tightening assembly 27 includes a sliding rod 271 that passes through downward, and the sliding rod 271 is slidably connected to the mounting bracket 26. Due to the design of the sliding rod 271 passing downward, the sliding rod 271 can move upward or downward relative to the mounting bracket 26. A spring telescopic rod 272 is fixed to the lower end of the sliding rod 271, and a tightening motor 273 is fixed to the output end of the spring telescopic rod 272. A guide rod 274 is fixed to the outer surface of the fixed end of the spring telescopic rod 272, and a screw driver bit 275 is also fixed to the output end of the tightening motor 273. With the design of the spring telescopic rod 272, when the screw driver bit 275 contacts the screw and the fixed end of the spring telescopic rod 272 continues to move downward, the output end of the spring telescopic rod 272 will contract. Due to the elastic design of the spring telescopic rod 272, the screw driver bit 275 can press the screw downward tightly to better absorb the screw.

[0037] like Figure 4As shown, the screwdriver head 275 is magnetic, which can reduce the falling of the screws during the process of screwing the screw assembly 27 to absorb the screws, and increase the stability of the device when in use. Due to the design of the mounting column 25, when the device is assembled with screws on the motor, the mounting column 25 will give downward pressure to the mounting bracket 26 so that the screws can be assembled on the motor. The side wall of the screwdriver head 275 is also provided with a plurality of friction teeth 276, and the outer portion of the friction teeth 276 is inclined upward. When the screwdriver head 275 is inserted into the screw groove, the inclined friction teeth 276 can guide the screwdriver head 275 to better insert into the screw groove, so that the screwdriver head 275 and the screw groove are more tightly engaged, reducing slippage when the screw is tightened, and the inclined friction teeth 276 disperse the stress along the inclined direction when subjected to force, reducing local wear and extending the service life of the screwdriver head 275.

[0038] like Figure 5 As shown, the limiting assembly 28 includes a fixing ring 281 fixed to the surface of the mounting column 25, and two horizontal grooves 282 are symmetrically provided on the outer surface of the fixing ring 281. The two horizontal grooves 282 are connected end to end by a U-shaped groove 283 and a U-shaped groove 284 to form a complete limiting groove 1, so that the guide rod 274 can slide in a cycle inside the limiting groove 1. When the guide rod 274 slides in the U-shaped groove, the spring telescopic rod 272 can move up and down due to the design of the fixed connection between the guide rod 274 and the fixed end of the spring telescopic rod 272 (wherein the sliding connection between the sliding rod 271 and the mounting bracket 2 26 mainly serves to limit the spring telescopic rod 272).

[0039] In addition, the U-shaped groove 1 283 is located above the second assembly line 11. When the guide rod 274 is at the lowest point of the U-shaped groove 1 283, the screwdriver bit 275 is located directly above the second assembly line 11, so that the screwdriver bit 275 can remove the screws conveyed by the second assembly line 11.

[0040] The U-shaped groove 284 is located above the assembly line 1. When the guide rod 274 is located at the lowest point of the U-shaped groove 284, the screwdriver head 275 is located directly above the assembly line 1 so that the screwdriver head 275 can assemble the screws onto the motor.

[0041] The working process of this embodiment is as follows: when the device is used, the motor to be assembled is first placed on the assembly line 1 (this motor is a motor with a single screw assembled on the rear cover), and the screw to be assembled is placed in the assembly line 2 11 (wherein the screw cap is placed between two adjacent baffles 113. Due to the design of the two conveyor belts, the four baffles 113 can limit the screw, and the screw shaft portion of the screw is located in the gap between the two conveyor belts). The screw is placed vertically to facilitate the removal of the screw;

[0042] Start assembly line 1, assembly line 2 11, and annular motor 24. When annular motor 24 rotates, it drives mounting bracket 2 26 to rotate. Due to the design of the limit assembly 28 for limiting the position of guide rod 274, when guide rod 274 slides in horizontal slot 1 282, multiple spring telescopic rods 272 are in the highest state, so that tightening motor 273 can rotate around mounting column 25 without contacting screws or the motor to be assembled. When guide rod 274 slides in U-shaped slot 1 283 or U-shaped slot 2 284, the spring telescopic rods 272 can move up and down, thereby driving tightening motor 273 to move up or down, facilitating the removal and placement of screws.

[0043] When the guide rod 274 slides in the U-shaped groove 1 283 and slides downward, the spring telescopic rod 272 will move downward. If the screw bit 275 contacts the screw and the spring telescopic rod 272 continues to move downward, the output end of the spring telescopic rod 272 will contract. Under the action of the elastic force of the spring telescopic rod 272, the screw bit 275 will fit tightly with the screw. Due to the design of the friction teeth 276, the screw bit 275 can also prevent the screw from falling off during the transportation of the screw, thereby increasing the stability of the device when in use. Then the guide rod 274 continues to slide in the U-shaped groove 1 283 until the screw transported on the assembly line 2 11 is removed.

[0044] When the guide rod 274 slides in the second U-shaped groove 284 and continues to slide downward, the tightening motor 273 is started, driving the screwdriver bit 275 and the screw to rotate. At this time, the screwdriver bit 275 will screw the screw onto the motor to be assembled, thereby completing the assembly of the motor screw. Due to the design of the spring telescopic rod 272, when the screw is tightened, the spring telescopic rod 272 will contract, so that the device uses the elastic force of the spring telescopic rod 272 to tighten the screw instead of using rigid force to tighten the screw, which can improve the assembly effect of the motor screw.

[0045] The steps are repeated in a cycle to assemble multiple motor screws, thereby forming an assembly line.

[0046] Example 2

[0047] This embodiment improves the limiting component 28 on the basis of the first embodiment, so that the device can support multi-axis synchronous positioning and tightening in multiple scenarios when in use.

[0048] like Figure 6 and Figure 7As shown, the limiting assembly 28 includes a fixing ring 285 fixed to the surface of the mounting column 25, and a horizontal groove 286 is provided on the outer surface of the fixing ring 285. A U-shaped groove 3 287 is provided at the notch of the horizontal groove 286. The horizontal groove 286 and the U-shaped groove 3 287 are connected end to end to form a complete limiting groove 2, so that the guide rod 274 can slide in a loop inside the limiting groove 2. When the guide rod 274 slides in the U-shaped groove 3 287, the spring telescopic rod 272 can move up and down due to the design of the fixed connection between the guide rod 274 and the fixed end of the spring telescopic rod 272.

[0049] The working process of this embodiment is as follows: when the device is used, the motor to be assembled is first placed on the assembly line 1 (this motor is a motor with multiple screws assembled on the rear cover), and the screws to be assembled are placed in the assembly line 2 11 (wherein the screw cap is placed between two adjacent baffles 113. Due to the design of the two conveyor belts, the four baffles 113 can limit the screws, and the screw shaft part of the screw is located in the gap between the two conveyor belts). The screws are placed vertically to facilitate the removal of the screws;

[0050] Start assembly line 1, assembly line 2 11, and annular motor 24. When annular motor 24 rotates, it drives mounting bracket 2 26 to rotate. Due to the design of limit assembly 28 for limiting the position of guide rod 274, when guide rod 274 slides in horizontal slot 1 282, multiple spring telescopic rods 272 are in the highest state, so that tightening motor 273 can rotate around mounting column 25 without contacting screws or the motor to be assembled. When guide rod 274 slides in U-shaped slot 3 287, spring telescopic rods 272 can move up and down, thereby driving tightening motor 273 to move up or down, facilitating the removal and placement of screws.

[0051] When the guide rod 274 slides in the U-shaped groove three 287 and slides downward, the spring telescopic rod 272 will move downward. If the screw bit 275 contacts the screw and the spring telescopic rod 272 continues to move downward, the output end of the spring telescopic rod 272 will contract. Under the action of the elastic force of the spring telescopic rod 272, the screw bit 275 will fit tightly with the screw. Due to the design of the friction teeth 276, the screw bit 275 can also prevent the screw from falling off during the transportation of the screw, thereby increasing the stability of the device when in use. Then the guide rod 274 continues to slide in the U-shaped groove three 287 until the screw transported on the assembly line two 11 is removed.

[0052] When the lower ends of multiple screwdriver bits 275 are all adsorbed with screws, the hydraulic rod 23 moves to the left in the slide rail 22 until it is directly above the motor to be assembled. Then the output end of the hydraulic rod 23 is controlled to extend and the multiple tightening motors 273 are started at the same time. When the tightening motors 273 work, the screws are assembled to the motor.

[0053] It should be noted that the specific installation methods, circuit connection methods and control methods of the assembly line, motor, slide rail 22 and hydraulic rod 23 in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

Claims

1. A motor screw assembly line, comprising a first assembly line (1) and a second assembly line (11), characterized in that: An assembly component (2) is provided between the first assembly line (1) and the second assembly line (11); The assembly line 2 (11) includes two mounting brackets 1 (111), and a transmission belt is provided at one end of the two mounting brackets 1 (111) close to each other. The two mounting brackets 1 (111) are connected by a cross shaft (112), and a plurality of baffles (113) are fixed on the outer surface of the mounting bracket 1 (111).

2. The motor screw assembly line according to claim 1, characterized in that: The assembly component (2) includes a gantry (21), a slide rail (22) is fixed to the lower end of the horizontal portion of the gantry (21), a hydraulic rod (23) slides inside the slide rail (22), a ring motor (24) is fixed to the output end of the hydraulic rod (23), a mounting column (25) is fixed to the lower end of the ring motor (24), a mounting bracket 2 (26) is fixed to the output end of the ring motor (24), a screw assembly (27) is provided on the outer surface of the mounting bracket 2 (26), and a limit assembly (28) is provided on the outer surface of the mounting column (25).

3. The motor screw assembly line according to claim 2, characterized in that: The screw-tightening assembly (27) comprises a sliding rod (271) extending downward, a spring telescopic rod (272) being fixed to the lower end of the sliding rod (271), a tightening motor (273) being fixed to the output end of the spring telescopic rod (272), a guide rod (274) being fixed to the outer surface of the fixed end of the spring telescopic rod (272), and a screwdriver bit (275) being fixed to the output end of the tightening motor (273).

4. The motor screw assembly line according to claim 3, characterized in that: The screw driver head (275) is magnetic, and a side wall of the screw driver head (275) is further provided with a plurality of friction teeth (276), with the outer portions of the friction teeth (276) tilted upward.

5. The motor screw assembly line according to claim 2, characterized in that: The limiting assembly (28) includes a fixing ring (281) fixed to the surface of the mounting column (25), and two horizontal grooves (282) are symmetrically formed on the outer surface of the fixing ring (281).

6. The motor screw assembly line according to claim 5, characterized in that: The two horizontal grooves 1 (282) are connected end to end via a U-shaped groove 1 (283) and a U-shaped groove 2 (284) to form a complete limiting groove 1.

7. The motor screw assembly line according to claim 6, characterized in that: The U-shaped groove 1 (283) is located above the assembly line 2 (11), and when the guide rod (274) is located at the lowest point of the U-shaped groove 1 (283), the screw bit (275) is located directly above the assembly line 2 (11); The second U-shaped groove (284) is located above the first assembly line (1). When the guide rod (274) is located at the lowest point of the second U-shaped groove (284), the screw bit (275) is located directly above the first assembly line (1).

8. The motor screw assembly line according to claim 2, characterized in that: The limiting assembly (28) includes a second fixing ring (285) fixed to the surface of the mounting column (25), a second horizontal groove (286) is provided on the outer surface of the second fixing ring (285), and a third U-shaped groove (287) is provided at the notch of the second horizontal groove (286).

9. The motor screw assembly line according to claim 8, characterized in that: The second horizontal groove (286) and the third U-shaped groove (287) are connected end to end to form a complete limiting groove second.

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