A micro motor assembly tool suitable for an automated assembly line

Abstract

The utility model provides a kind of micro motor assembly tool suitable for automated assembly line, it is related to micro motor production technical field, comprising: assembly line conveyor belt;The outside of the assembly line conveyor belt is fixedly connected with multiple groups of positioning stopper;The rear of assembly line conveyor belt is fixedly connected with fixed frame;The top end surface bolt fastening connection of fixed frame has multiple groups of drive cylinder;The end of multiple groups of drive cylinder output shaft is fixedly connected with pressure head main body;Multiple groups of pressure head main body are respectively with the position of multiple groups of positioning stopper alignment;The rear of the top end surface of fixed frame is fixedly connected with multiple groups of transparent oil tank;Multiple groups of transparent oil tank are respectively with the position of multiple groups of drive cylinder alignment;The rear of fixed frame is fixedly connected with multiple groups of protection box.When drive cylinder drives pressure head main body to press-fit assembly, felt plate can wipe the surface of output shaft, lubricate drive cylinder, solve the problem that staff needs to periodically lubricate the output shaft of drive cylinder, operation is more cumbersome.

Description

Technical Field

[0001] This utility model relates to the field of micro motor manufacturing technology, and in particular to a micro motor assembly fixture suitable for automated assembly lines. Background Technology

[0002] In automated assembly lines for micro motors, in order to facilitate the pressing and assembly of the stator and housing of the micro motor and to transport the assembled micro motor to the next process, micro motor assembly fixtures are usually used to press the stator and housing together. Existing micro motor assembly fixtures typically consist of a conveyor belt, positioning blocks, drive cylinders, and pressure heads.

[0003] For example, utility model application CN202223280429.X discloses a motor stator and housing assembly mechanism, specifically including a worktable, a first cylinder connected to the center of the worktable, a lifting plate connected to the end of the first cylinder, guide pillars symmetrically arranged on the outside of the first cylinder, a mold passing through the guide pillars, a support plate connected to one side of the worktable, a top plate connected above the support plate, a hydraulic cylinder connected above the top plate, a pressure plate fixedly connected to the end of the hydraulic cylinder, a first gripping device installed on one side of the worktable, the first gripping device including a second cylinder, a slide bar and a slider, the slider and the slide bar being slidably connected, one side of the slider being connected to the end of the second cylinder, a third cylinder and a gripper connected to the upper end of the slider, a second gripping device provided at the other end of the slide bar, and conveyor belts provided on both sides of the mold. This utility model has a reasonable structure, and through the cooperation between the first gripping device, the second gripping device, the hydraulic cylinder and the mold, the assembly between the stator and the housing is automated, reducing labor costs and improving production efficiency.

[0004] However, in terms of current traditional micro motor assembly tooling, in order to reduce wear and ensure the performance of the drive cylinder during long-term use, the output shaft of the drive cylinder usually needs to be lubricated regularly by the operator. This operation is cumbersome, increases the labor intensity of the operator, and is inconvenient to use. Utility Model Content

[0005] In view of this, the present invention provides a micro motor assembly fixture suitable for automated assembly lines, which has a felt plate that can automatically lubricate the output shaft of the drive cylinder. During the movement of the drive cylinder driving the pressure head body, the movement of the pressure head body also drives the auxiliary frame to move, which in turn drives the transmission rack to move. The movement of the transmission rack drives the transmission gear meshing with it to rotate, which in turn drives the fixed shaft to rotate. During the rotation of the fixed shaft, the control cam rotates, and the rotation of the control cam compresses the piston rod, causing the piston rod to slide and compress within the piston box. This intermittently pressurizes the transparent oil reservoir. When the piston box pressurizes the transparent oil reservoir, the lubricating oil in the transparent oil reservoir enters the oil injection hole through the oil supply pipe, and then flows into the felt plate through the oil injection hole and the oil passage hole. The felt plate absorbs the lubricating oil, and during the movement of the drive cylinder output shaft, the felt plate wipes the surface of the output shaft, thus lubricating the drive cylinder.

[0006] This utility model provides a micro motor assembly fixture suitable for automated assembly lines, specifically including: an assembly line conveyor belt; multiple sets of positioning blocks fixedly connected to the outside of the assembly line conveyor belt; a fixed frame fixedly connected to the rear of the assembly line conveyor belt; multiple sets of drive cylinders bolted to the top surface of the fixed frame; pressure head bodies fixedly connected to the ends of the output shafts of the multiple sets of drive cylinders; the positions of the multiple sets of pressure head bodies are respectively aligned with the positions of the multiple sets of positioning blocks; multiple sets of transparent oil tanks fixedly connected to the rear of the top surface of the fixed frame; the positions of the multiple sets of transparent oil tanks are respectively aligned with the positions of the multiple sets of drive cylinders; and multiple sets of protective boxes fixedly connected to the rear of the fixed frame.

[0007] Optionally, each of the top surfaces of the multiple sets of pressure head bodies is fixedly connected to an auxiliary frame; each of the multiple sets of auxiliary frames is fixedly connected to a transmission rack; each of the multiple sets of protective boxes is rotatably connected to a fixed shaft; each of the multiple sets of fixed shafts is fixedly connected to a transmission gear; and each of the multiple sets of transmission gears is aligned with the position of the multiple sets of transmission racks.

[0008] Optionally, a set of control cams is coaxially fixedly connected to the outside of each of the multiple sets of fixed rotating shafts; multiple sets of fixing blocks are fixedly connected to the upper part of the fixing frame; piston boxes are fixedly connected to the bottom end faces of each of the multiple sets of fixing blocks; piston rods are slidably connected inside each of the multiple sets of piston boxes; the multiple sets of piston rods respectively contact the outer walls of the multiple sets of control cams; return springs are fixedly connected to the inner sides of the multiple sets of piston rods; the ends of the multiple sets of return springs are respectively fixedly connected inside the multiple sets of piston boxes; the outlet gas of the multiple sets of piston boxes is respectively connected to multiple sets of transparent oil storage tanks through gas transmission pipes.

[0009] Optionally, each of the fixed frames is fixedly connected to a connecting frame at its front; each of the multiple connecting frames has an oil injection hole on its exterior; each of the multiple oil injection holes is connected to the oil outlet of a multiple transparent oil storage tank via an oil supply pipe; each of the multiple connecting frames has a mounting frame inside; each of the multiple mounting frames has an oil passage hole on its exterior; the multiple oil injection holes are aligned with the positions of the multiple oil passage holes; each of the multiple mounting frames has a felt plate inside; each of the multiple felt plates covers the outer wall of the output shaft of the multiple drive cylinders.

[0010] Optionally, limit blocks are fixedly connected to the exterior of multiple sets of mounting brackets; a set of limit brackets is rotatably connected to the lower part of multiple sets of connecting brackets; a second connecting plate is fixedly connected to the exterior of multiple sets of limit brackets; a first connecting plate is fixedly connected to the exterior of multiple sets of connecting brackets; and multiple sets of first connecting plates are respectively fastened to multiple sets of second connecting plates by bolts.

[0011] Optionally, the rear of each set of felt plates is provided with an oil expansion groove; the positions of the multiple sets of oil expansion grooves are respectively aligned with the positions of the multiple sets of oil passage holes.

[0012] Beneficial effects

[0013] During use, when the drive cylinder drives the pressure head body for pressing and assembly, the felt plate will wipe the surface of the output shaft to lubricate the drive cylinder. Simply unscrew the bolts and then rotate the limit bracket. At this time, the mounting bracket will fall naturally. Then, remove the fallen mounting bracket to replace the felt plate. This reduces the frictional resistance of the drive cylinder and automatically lubricates the drive cylinder. The operator only needs to replace the felt plate and add oil to the transparent oil tank periodically, reducing the frequency of maintenance, reducing the labor intensity of the operator, making it more convenient to use, and effectively improving the convenience of micro motor assembly tooling.

[0014] During the movement of the pressure head body driven by the drive cylinder, the auxiliary frame also moves along with the pressure head body. The movement of the auxiliary frame in turn moves the transmission rack. Subsequently, through a series of transmissions, the control cam intermittently squeezes the piston rod, causing the piston box to intermittently pressurize the transparent oil reservoir. When the piston box pressurizes the transparent oil reservoir, the lubricating oil in the transparent oil reservoir enters the oil injection hole through the oil supply pipe, and then flows into the felt plate through the oil injection hole and the oil passage hole, allowing the felt plate to absorb the lubricating oil. The pulse pressure generated by the cam extrusion can continuously and evenly feed oil to the oil felt, ensuring that the oil felt is always soaked in lubricating oil, ensuring the lubrication effect of the drive cylinder, and effectively improving the practicality of the micro motor assembly fixture. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the isometric structure of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the fixing bracket of this utility model.

[0019] Figure 3 This is an isometric structural diagram of the fixing block of this utility model.

[0020] Figure 4 This is an isometric structural schematic diagram of the oil expansion groove of this utility model.

[0021] Figure 5 This is an isometric structural diagram of the control cam of this utility model.

[0022] List of reference numerals

[0023] 1. Assembly line conveyor belt; 101. Positioning stop; 102. Fixing frame; 103. Drive cylinder; 104. Press head body; 105. Transparent oil reservoir; 106. Connecting frame; 107. Limiting frame; 108. First connecting plate; 109. Second connecting plate; 110. Oil injection hole; 111. Mounting frame; 112. Fixing block; 113. Oil passage hole; 114. Limiting block; 115. Felt plate; 116. Oil expansion groove; 117. Auxiliary frame; 118. Transmission rack; 119. Fixed rotating shaft; 120. Transmission gear; 121. Control cam; 122. Protective box; 123. Piston box; 124. Piston rod; 125. Return spring. Detailed Implementation

[0024] To make the objectives, solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0025] Example 1:

[0026] This utility model proposes a micro motor assembly fixture suitable for automated assembly lines. Please refer to [reference needed]. Figures 1 to 5The assembly line includes: an assembly line conveyor belt 1; multiple sets of positioning blocks 101 are fixedly connected to the outside of the assembly line conveyor belt 1; a fixed frame 102 is fixedly connected to the rear of the assembly line conveyor belt 1; multiple sets of drive cylinders 103 are bolted to the top surface of the fixed frame 102; a pressure head body 104 is fixedly connected to the end of the output shaft of each of the multiple sets of drive cylinders 103; the multiple sets of pressure head bodies 104 are respectively aligned with the positions of the multiple sets of positioning blocks 101; multiple sets of transparent oil tanks 105 are fixedly connected to the rear of the top surface of the fixed frame 102; the multiple sets of transparent oil tanks 105 are respectively aligned with the positions of the multiple sets of drive cylinders 103; and multiple sets of protective boxes 122 are fixedly connected to the rear of the fixed frame 102.

[0027] Each set of pressure head bodies 104 has an auxiliary frame 117 fixedly connected to its top surface; each set of auxiliary frames 117 has a transmission rack 118 fixedly connected to its rear; each set of protective boxes 122 has a fixed shaft 119 rotatably connected inside; each set of fixed shafts 119 has a transmission gear 120 fixedly connected to its exterior; each set of transmission gears 120 is aligned with the position of each set of transmission racks 118.

[0028] A set of control cams 121 are coaxially fixed to the outside of multiple sets of fixed rotating shafts 119; multiple sets of fixed blocks 112 are fixedly connected to the upper part of the fixed frame 102; piston boxes 123 are fixedly connected to the bottom end face of multiple sets of fixed blocks 112; piston rods 124 are slidably connected inside multiple sets of piston boxes 123; multiple sets of piston rods 124 contact the outer wall of multiple sets of control cams 121 respectively; return springs 125 are fixedly connected to the inner side of multiple sets of piston rods 124 respectively; the ends of multiple sets of return springs 125 are fixedly connected to multiple sets of piston boxes 123 respectively; the outlet gas of multiple sets of piston boxes 123 is connected to multiple sets of transparent oil storage tanks 105 through gas transmission pipes respectively.

[0029] Each of the fixed brackets 102 has a connecting bracket 106 fixedly connected to its front; each of the multiple connecting brackets 106 has an oil filling hole 110 on its exterior; each of the multiple oil filling holes 110 is connected to the oil outlet of each of the multiple transparent oil storage tanks 105 through an oil supply pipe; each of the multiple connecting brackets 106 has a mounting bracket 111 inside; each of the multiple mounting brackets 111 has an oil passage hole 113 on its exterior; each of the multiple oil filling holes 110 is aligned with the position of each of the multiple oil passage holes 113; each of the multiple mounting brackets 111 has a felt plate 115 inside; each of the multiple felt plates 115 covers the outer wall of the output shaft of each of the multiple drive cylinders 103.

[0030] Multiple sets of mounting brackets 111 are fixedly connected to the outside of limiting blocks 114; multiple sets of connecting brackets 106 are rotatably connected to a set of limiting brackets 107 at their lower parts; multiple sets of limiting brackets 107 are fixedly connected to the outside of a second connecting plate 109; multiple sets of connecting brackets 106 are fixedly connected to the outside of a first connecting plate 108; multiple sets of first connecting plates 108 are respectively fastened to multiple sets of second connecting plates 109 by bolts.

[0031] The specific usage and function of this embodiment are as follows: The stator and housing assembly of the micro motor are precisely positioned below the drive cylinder 103 via the assembly line conveyor belt 1. Then, the drive cylinder 103 drives the pressure head body 104 downwards to press and assemble the stator and housing. A photoelectric sensor is installed in the assembly line conveyor belt 1 to detect whether the stator and housing assembly has reached the pressing position. Since this method is existing technology, it will not be described in detail here. During the movement of the pressure head body 104 by the drive cylinder 103, the auxiliary frame 117 also moves, which in turn moves the transmission rack 118. The transmission rack 118 then drives the meshing transmission gear 120 to rotate, which in turn drives the fixed shaft 119 to rotate. The rotation of the fixed shaft 119 drives the control cam 121 to rotate. The rotation of cylinder 103 compresses piston rod 124, causing it to slide and compress within piston box 123. Simultaneously, the periodic compression of piston rod 124 by cam 121 generates intermittent air pressure in piston box 123, propelling lubricating oil flow. This causes lubricating oil in transparent oil reservoir 105 to enter oil injection hole 110 through oil supply pipe, and then flow through oil injection hole 110 and oil passage hole 113 into felt plate 115. Felt plate 115 absorbs the lubricating oil, allowing the output shaft of drive cylinder 103 to move during operation. The felt plate 115 will wipe the surface of the output shaft and lubricate the drive cylinder 103. In the initial state, the limit frame 107 will support the limit block 114 and fix the position of the mounting frame 111. When the felt plate 115 needs to be replaced, simply unscrew the bolts, then rotate the limit frame 107 and flip the limit frame 107 to release its support on the limit block 114. At this time, the mounting frame 111 will fall naturally. Then, the fallen mounting frame 111 can be removed to replace the felt plate 115.

[0032] Example 2:

[0033] Based on Example 1, please refer to Figures 1 to 4 It includes: an oil expansion groove 116, and an oil expansion groove 116 is provided at the rear of multiple sets of felt plates 115; the multiple sets of oil expansion grooves 116 are respectively aligned with the positions of multiple sets of oil passage holes 113.

[0034] The specific usage and function of this embodiment: The oil expansion groove 116 can guide the lubricating oil flowing out of the oil passage hole 113, so that it can more quickly soak the felt plate 115, which is wool felt.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0037] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A micro motor assembly fixture suitable for automated assembly lines, comprising: An assembly line conveyor belt (1); multiple sets of positioning blocks (101) are fixedly connected to the outside of the assembly line conveyor belt (1); characterized in that a fixed frame (102) is fixedly connected to the rear of the assembly line conveyor belt (1); multiple sets of drive cylinders (103) are bolted to the top surface of the fixed frame (102); a pressure head body (104) is fixedly connected to the end of the output shaft of each of the multiple sets of drive cylinders (103); the multiple sets of pressure head bodies (104) are respectively aligned with the positions of the multiple sets of positioning blocks (101); multiple sets of transparent oil tanks (105) are fixedly connected to the rear of the top surface of the fixed frame (102); the multiple sets of transparent oil tanks (105) are respectively aligned with the positions of the multiple sets of drive cylinders (103); multiple sets of protective boxes (122) are fixedly connected to the rear of the fixed frame (102).

2. The micro motor assembly fixture suitable for automated assembly lines as described in claim 1, characterized in that: Each of the multiple sets of pressure head bodies (104) has an auxiliary frame (117) fixedly connected to its top surface; each of the multiple sets of auxiliary frames (117) has a transmission rack (118) fixedly connected to its rear; each of the multiple sets of protective boxes (122) has a fixed shaft (119) rotatably connected inside; each of the multiple sets of fixed shafts (119) has a transmission gear (120) fixedly connected to its exterior; each of the multiple sets of transmission gears (120) is aligned with the position of each of the multiple sets of transmission racks (118).

3. The micro motor assembly fixture suitable for automated assembly lines as described in claim 2, characterized in that: A set of control cams (121) are coaxially fixed to the outside of each of the multiple sets of fixed rotating shafts (119); a set of fixed blocks (112) are fixedly connected to the upper part of the fixed frame (102); a piston box (123) is fixedly connected to the bottom end face of each of the multiple sets of fixed blocks (112); a piston rod (124) is slidably connected inside each of the multiple sets of piston boxes (123); the multiple sets of piston rods (124) respectively contact the outer wall of the multiple sets of control cams (121); a return spring (125) is fixedly connected to the inner side of each of the multiple sets of piston rods (124); the ends of the multiple sets of return springs (125) are respectively fixedly connected inside the multiple sets of piston boxes (123); the outlet gas of the multiple sets of piston boxes (123) is respectively connected to the multiple sets of transparent oil storage tanks (105) through gas transmission pipes.

4. The micro motor assembly fixture suitable for automated assembly lines as described in claim 1, characterized in that: Each of the fixed frames (102) is fixedly connected to a connecting frame (106) at the front; each of the multiple connecting frames (106) has an oil injection hole (110) on its exterior; each of the multiple oil injection holes (110) is connected to the oil outlet of a multiple transparent oil storage tank (105) via an oil supply pipe; each of the multiple connecting frames (106) has an installation frame (111) inside; each of the multiple installation frames (111) has an oil passage hole (113) on its exterior; each of the multiple oil injection holes (110) is aligned with the position of each of the multiple oil passage holes (113); each of the multiple installation frames (111) has a felt plate (115) inside; each of the multiple felt plates (115) covers the outer wall of the output shaft of a multiple drive cylinder (103).

5. The micro motor assembly fixture suitable for automated assembly lines as described in claim 4, characterized in that: Multiple mounting brackets (111) are fixedly connected to the outside of each of the multiple mounting brackets (114); multiple connecting brackets (106) are rotatably connected to the lower part of each of the multiple connecting brackets (107); multiple limiting brackets (107) are fixedly connected to the outside of each of the multiple limiting brackets (107); multiple connecting brackets (106) are fixedly connected to the outside of each of the multiple connecting brackets (106); multiple first connecting brackets (108) are respectively fastened to multiple second connecting brackets (109) by bolts.

6. The micro motor assembly fixture suitable for automated assembly lines as described in claim 4, characterized in that: Each of the multiple sets of felt plates (115) has an oil expansion groove (116) at its rear; the multiple sets of oil expansion grooves (116) are aligned with the positions of the multiple sets of oil passage holes (113).

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