Automatic assembling equipment for small shaft assembly

Abstract

The utility model provides automatic assembling equipment for a small shaft assembly. The automatic assembling equipment comprises a cabinet; the six-axis mechanical arm is arranged at the top of the machine cabinet, and a pneumatic clamping jaw is fixedly installed at one end of the six-axis mechanical arm; and the press fitting mechanism is arranged at the top of the machine cabinet. According to the automatic assembling equipment for the small shaft assembly, the shaft feeding mechanism, the reaming mechanism, the shaft hole cleaning mechanism, the glue dispensing mechanism, the pre-press-fitting mechanism and the press-fitting mechanism are combined to complete multiple assembling procedures of the shaft assembly, and the production mode that technological parameters are controlled depending on manual experience is replaced; therefore, the process parameters such as shaft hole positioning, reaming depth and dispensing amount can be accurately controlled; manual operation is replaced, the product consistency is good, the production quality of the product is improved, and the production efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic assembly of small shaft parts, and particularly to an automatic assembly equipment for small shaft assemblies. BACKGROUND

[0002] With the continuous development of industrial automation, shaft assemblies are widely used in many fields.

[0003] When assembling the shaft assembly, the cylindrical pin needs to be pressed into the shaft hole with interference. In order to ensure product quality, reaming, dispensing, cleaning, and pressing are required in the assembly process.

[0004] At present, manual assembly is mostly used in actual production. There are many human uncertain factors in the operation process, such as reaming depth, reaming speed, dispensing amount, pressing hole positioning, and pressing amount. The process parameters cannot be fixed and are completely relied on the personal experience of the operator. There are certain differences in the operation of each person each time. The over-difference of various process parameters easily causes the deformation of the shaft assembly after pressing assembly or the excessive pressing amount, which leads to unstable quality of the shaft assembly assembly process, low production efficiency, and easy production of waste products.

[0005] Therefore, it is necessary to provide an automatic assembly equipment for small shaft assemblies to solve the above technical problems. SUMMARY

[0006] The present application provides an automatic assembly equipment for small shaft assemblies, which solves the problem of manual assembly in production, many human uncertain factors, and unstable quality of the shaft assembly assembly process, low production efficiency, and easy production of waste products caused by the non-fixation of process parameters.

[0007] To solve the above technical problems, the present application provides an automatic assembly equipment for small shaft assemblies, which comprises:

[0008] a cabinet;

[0009] a six-axis mechanical arm, which is arranged on the top of the cabinet, and one end of the six-axis mechanical arm is fixedly installed with a pneumatic claw;

[0010] a pressing mechanism, which is arranged on the top of the cabinet;

[0011] a dispensing mechanism, which is arranged on the top of the cabinet and arranged on one side of the pressing mechanism;

[0012] a shaft hole cleaning mechanism, which is arranged on the top of the cabinet and arranged on one side of the dispensing mechanism;

[0013] Pre-press fitting mechanism, which is arranged on the top of the cabinet, and is arranged on one side of the shaft hole cleaning mechanism;

[0014] Reaming mechanism, which is arranged on the top of the cabinet, and is arranged on one side of the pre-press fitting mechanism;

[0015] Shaft feeding mechanism, which is arranged on the top of the cabinet, and is arranged on one side of the reaming mechanism.

[0016] Preferably, the press fitting mechanism comprises a first support, a first mold group, a press fitting head and a V-shaped iron, the bottom of the first support is fixedly installed on the top of the cabinet, the first mold group is fixedly installed on the side of the first support, the press fitting head is fixedly installed on the moving end of the first mold group, the bottom of the V-shaped iron is fixedly installed on the top of the cabinet, and the V-shaped iron is arranged on the side of the first support.

[0017] Preferably, the dispensing mechanism comprises a second support, a glue pipe and a needle head, the bottom of the second support is fixedly installed on the top of the cabinet, the glue pipe is arranged in the second support, and the needle head is fixedly installed on the bottom of the glue pipe.

[0018] Preferably, the shaft hole cleaning mechanism comprises a third support, a chip removal air knife, a dust suction air cylinder, a dust suction fan and a dust collecting barrel, the bottom of the third support is fixedly installed on the top of the cabinet, the chip removal air knife is fixedly installed on the inner side of the third support, the dust suction air cylinder is fixedly installed on one end of the chip removal air knife, the dust suction fan is fixedly installed on one end of the dust suction air cylinder, and the dust collecting barrel is fixedly installed on the output end of the dust suction fan.

[0019] Preferably, the pre-press fitting mechanism comprises a fourth support, a base, a gas cylinder and a stock bin, the bottom of the fourth support is fixedly installed on the top of the cabinet, the base is fixedly installed on the top of the fourth support, the stock bin is fixedly installed on the top of the base, and the gas cylinder is arranged on the inner side of the stock bin.

[0020] Preferably, the reaming mechanism comprises a fifth support, a second mold group, a first servo motor, a collet and a reamer, the bottom of the fifth support is fixedly installed on the top of the cabinet, the second mold group is fixedly installed on the side of the fifth support, the first servo motor is fixedly installed on the moving end of the second mold group, the collet is fixedly installed on the output end of the first servo motor, and the reamer is arranged on the inner side of the collet.

[0021] Preferably, the shaft feeding mechanism comprises a sixth support, a second servo motor and a tray, the bottom of the sixth support is fixedly installed on the top of the cabinet, the second servo motor is fixedly installed on one side of the sixth support, and the tray is fixedly installed on the output end of the second servo motor.

[0022] Preferably, ventilation fans are fixedly installed on the two sides of the cabinet, and footing mechanisms are fixedly installed around the bottom of the cabinet.

[0023] Preferably, the footing mechanism comprises a support pipe, a threaded pipe, a universal wheel, a backing plate and a rubber pad, the top of the support pipe is fixedly installed on the bottom of the cabinet, the threaded pipe is threadedly connected to the outer side of the support pipe, the universal wheel is fixedly installed on the bottom of the support pipe, the backing plate is fixedly installed on the bottom of the threaded pipe and located on the outer side of the universal wheel, and the rubber pad is fixedly installed on the bottom of the backing plate.

[0024] Preferably, threaded rings are fixedly installed on the two sides of the cabinet, the inner side of the threaded ring is threadedly connected with a connecting ring, one end of the connecting ring is fixedly installed with a filter frame, and the filter frame is arranged on the side of the ventilation fan.

[0025] Compared with the related art, the small shaft assembly automatic assembly equipment has the following beneficial effects:

[0026] The small shaft assembly automatic assembly equipment comprises a shaft feeding mechanism, a reaming mechanism, a shaft hole cleaning mechanism, a dispensing mechanism, a pre-pressing mechanism and a press-fitting mechanism, and a plurality of assembly processes of the shaft assembly are completed through the combination of the shaft feeding mechanism, the reaming mechanism, the shaft hole cleaning mechanism, the dispensing mechanism, the pre-pressing mechanism and the press-fitting mechanism, thereby replacing the production mode relying on manual experience to control process parameters, so that process parameters such as shaft hole positioning, reaming depth and dispensing amount can be accurately controlled, manual operation is replaced, the product consistency is good, the production quality of the product is increased, and the production efficiency is also increased. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a first embodiment of the small shaft assembly automatic assembly equipment provided by the present application;

[0028] Figure 2 FIG. 2 is a structural schematic diagram of the reaming mechanism shown in FIG. 1; Figure 1

[0029] Figure 3 FIG. 3 is a structural schematic diagram of the dispensing mechanism shown in FIG. 1; Figure 1

[0030] Figure 4 FIG. 4 is a structural schematic diagram of the pre-pressing mechanism shown in FIG. 1; Figure 1

[0031] Figure 5 FIG. 5 is a structural schematic diagram of the press-fitting mechanism shown in FIG. 1.​​​Figure 1 The schematic diagram of the shaft feeding mechanism shown;

[0032] Figure 6 for Figure 1 The schematic diagram of the shaft hole cleaning mechanism shown;

[0033] Figure 7 for Figure 1 Schematic diagram of the reaming mechanism structure shown;

[0034] Figure 8 A schematic structural diagram of a second embodiment of an automatic assembly device for small shaft components provided by the present invention;

[0035] Figure 9 This is a structural schematic diagram of a third embodiment of an automatic assembly device for small shaft components provided by the present invention.

[0036] Numbers in the figure: 1, cabinet, 11, ventilation fan, 2, six-axis robot arm, 21, pneumatic clamp, 3, press-fitting mechanism, 31, first bracket, 32, first module, 33, press-fitting head, 34, V-shaped iron, 4, dispensing mechanism, 41, second bracket, 42, hose, 43, needle, 5, shaft hole cleaning mechanism, 51, third bracket, 52, chip removal air knife, 53, dust suction air cylinder, 54, dust suction fan, 55, dust collection bucket, 6, pre-pressing mechanism, 61, fourth bracket Frame, 62. Base, 63. Cylinder, 64. Hopper, 7. Reaming mechanism, 71. Fifth bracket, 72. Second module, 73. First servo motor, 74. Collet, 75. Reamer, 8. Shaft feeding mechanism, 81. Sixth bracket, 82. Second servo motor, 83. Feed tray, 9. Anchor mechanism, 91. Support tube, 92. Threaded tube, 93. Universal wheel, 94. Pad, 95. Rubber pad, 10. Threaded ring, 101. Connecting ring, 102. Filter frame. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] First embodiment

[0039] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 ,in, Figure 1 A schematic structural diagram of a first embodiment of an automatic assembly device for small shaft components provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the press-fitting mechanism structure shown; Figure 3 for Figure 1The structure diagram of the glue dispensing mechanism is shown. Figure 4 For Figure 1 The structure diagram of the pre-press fitting mechanism is shown. Figure 5 For Figure 1 The structure diagram of the shaft feeding mechanism is shown. Figure 6 For Figure 1 The structure diagram of the shaft hole cleaning mechanism is shown. Figure 7 For Figure 1 The structure diagram of the reaming mechanism is shown. A small shaft assembly automatic assembly equipment comprises a cabinet 1;

[0040] A six-axis robot 2 is arranged on the top of the cabinet 1, and a pneumatic clamp 21 is fixedly installed at one end of the six-axis robot 2.

[0041] A press fitting mechanism 3 is arranged on the top of the cabinet 1.

[0042] A glue dispensing mechanism 4 is arranged on the top of the cabinet 1, and the glue dispensing mechanism 4 is arranged on one side of the press fitting mechanism 3.

[0043] A shaft hole cleaning mechanism 5 is arranged on the top of the cabinet 1, and the shaft hole cleaning mechanism 5 is arranged on one side of the glue dispensing mechanism 4.

[0044] A pre-press fitting mechanism 6 is arranged on the top of the cabinet 1, and the pre-press fitting mechanism 6 is arranged on one side of the shaft hole cleaning mechanism 5.

[0045] A reaming mechanism 7 is arranged on the top of the cabinet 1, and the reaming mechanism 7 is arranged on one side of the pre-press fitting mechanism 6.

[0046] A shaft feeding mechanism 8 is arranged on the top of the cabinet 1, and the shaft feeding mechanism 8 is arranged on one side of the reaming mechanism 7.

[0047] The press fitting mechanism 3 comprises a first support 31, a first module 32, a press fitting head 33, and a V-shaped iron 34. The bottom of the first support 31 is fixedly installed on the top of the cabinet 1, the first module 32 is fixedly installed on the side of the first support 31, the press fitting head 33 is fixedly installed on the moving end of the first module 32, the bottom of the V-shaped iron 34 is fixedly installed on the top of the cabinet 1, and the V-shaped iron 34 is arranged on the side of the first support 31.

[0048] The glue dispensing mechanism 4 comprises a second support 41, a glue pipe 42, and a needle 43. The bottom of the second support 41 is fixedly installed on the top of the cabinet 1, the glue pipe 42 is arranged in the second support 41, and the needle 43 is fixedly installed on the bottom of the glue pipe 42.

[0049] The shaft hole cleaning mechanism 5 comprises a third support 51, a debris removal air knife 52, a dust suction air cylinder 53, a dust suction fan 54 and a dust collection bucket 55. The bottom of the third support 51 is fixedly installed on the top of the cabinet 1. The debris removal air knife 52 is fixedly installed on the inner side of the third support 51. The dust suction air cylinder 53 is fixedly installed on one end of the debris removal air knife 52. The dust suction fan 54 is fixedly installed on one end of the dust suction air cylinder 53. The dust collection bucket 55 is fixedly installed on the output end of the dust suction fan 54.

[0050] The pre-press fitting mechanism 6 comprises a fourth support 61, a base 62, an air cylinder 63 and a hopper 64. The bottom of the fourth support 61 is fixedly installed on the top of the cabinet 1. The base 62 is fixedly installed on the top of the fourth support 61. The hopper 64 is fixedly installed on the top of the base 62. The air cylinder 63 is arranged on the inner side of the hopper 64.

[0051] The reaming mechanism 7 comprises a fifth support 71, a second module 72, a first servo motor 73, a collet chuck 74 and a reamer 75. The bottom of the fifth support 71 is fixedly installed on the top of the cabinet 1. The second module 72 is fixedly installed on the side of the fifth support 71. The first servo motor 73 is fixedly installed on the moving end of the second module 72. The collet chuck 74 is fixedly installed on the output end of the first servo motor 73. The reamer 75 is arranged on the inner side of the collet chuck 74.

[0052] The shaft feeding mechanism 8 comprises a sixth support 81, a second servo motor 82 and a tray 83. The bottom of the sixth support 81 is fixedly installed on the top of the cabinet 1. The second servo motor 82 is fixedly installed on one side of the sixth support 81. The tray 83 is fixedly installed on the output end of the second servo motor 82.

[0053] Ventilating fans 11 are fixedly installed on both sides of the cabinet 1. Ground anchors 9 are fixedly installed around the bottom of the cabinet 1.

[0054] The six-axis robot arm 2 can move in six directions of X, Y, Z, A, B and C. The end is provided with a pneumatic claw 21 to realize the movement of grabbing parts. The repeated positioning accuracy is 0.02 mm. The operation is stable, which ensures the accurate positioning of parts. The six-axis robot arm 2 can realize the accurate and rapid movement of shaft parts in the feeding, reaming, hole cleaning, glue dispensing, pre-press fitting and press fitting stations.

[0055] The tray 83 is equally divided by V-shaped grooves and is provided with positioning pins to facilitate the accurate placement of shaft parts. The feeding is realized by rotating positioning. The positioning is accurate and facilitates the clamping of parts by the six-axis robot arm 2.

[0056] The reaming mechanism 7 is composed of a high-precision module, a high-precision chuck and a servo motor, and can accurately control process parameters such as reaming depth and reaming speed;

[0057] The dispensing mechanism 4 is composed of a glue pipe 42, a needle 43, a second bracket 41 and a dispensing controller, and can accurately control process parameters such as dispensing amount and dispensing speed;

[0058] The pre-pressing mechanism 6 is composed of a spring clamp type material bin 64, a cylinder 63 and a base 62, the material bin 64 stores pin parts and relies on gravity to discharge, and the cylinder 63 sequentially pushes out the pins, and the front end of the pushed-out pin is inserted into the inner hole of the shaft part;

[0059] The V-shaped iron 34 can quickly determine the center of the shaft hole, and facilitate the press-fitting of the shaft assembly.

[0060] The working principle of the small shaft assembly automatic assembly equipment provided by the application is as follows:

[0061] When in use, the second servo motor 82 drives the material disc 83 to rotate, so as to convey the shaft part to the front of the six-axis mechanical arm 2 pneumatic clamp 21, the six-axis mechanical arm 2 end pneumatic clamp 21 clamps the shaft part, and the feeding process is completed;

[0062] The six-axis mechanical arm 2 aligns the positioned shaft part to the feeding, after the sensor senses the part, the reaming mechanism 7 starts to drive the second module 72 to drive the first servo motor 73 to move, and the first servo motor 73 drives the reamer 75 to rotate and descend to start reaming the inner hole, when the reaming depth reaches the set value, the second module 72 stops descending and slowly rises, and the reaming process is completed;

[0063] The high-speed compressed air generated by the chip removal air knife 52 blows the metal chips generated after reaming out of the shaft hole, the dust collection fan 54 draws away the metal chips through the dust collection air duct 53 and collects them into the dust collection barrel 55, the shaft hole can be cleaned instantly and quickly, and the shaft hole cleaning process is completed;

[0064] The six-axis mechanical arm 2 moves the shaft part to the dispensing mechanism 4, the shaft hole is aligned with the glue cylinder needle 43, the dispensing controller points glue to the shaft inner hole through the glue cylinder 42 needle 43, and the shaft inner hole dispensing process is completed;

[0065] The six-axis mechanical arm 2 moves the shaft part to the pre-pressing mechanism 6, the shaft inner hole is aligned with the pin discharge port, the cylinder 63 pushes the pin into the shaft hole, and the shaft assembly pre-pressing process is completed;

[0066] The six-axis mechanical arm 2 moves the pre-pressing shaft assembly to the V-shaped iron 34, the first module 32 drives the press-fitting head 33 to press the pin of the shaft assembly downward to reach the set position, and the shaft assembly press-fitting is completed.

[0067] Compared with the related art, the small shaft assembly automatic assembling equipment has the following beneficial effects:

[0068] The shaft feeding mechanism 8, the reaming mechanism 7, the shaft hole cleaning mechanism 5, the glue dispensing mechanism 4, the pre-pressing mechanism 6 and the press-fitting mechanism 3 are combined to complete multiple assembling processes of the shaft assembly, thereby replacing the production mode relying on manual experience to control process parameters, so that the process parameters such as shaft hole positioning, reaming depth and glue dispensing amount can be accurately controlled, manual operation is replaced, the product consistency is good, the production quality of the product is increased, and the production efficiency is also increased.

[0069] Second embodiment

[0070] Please refer to Figure 8 Based on the small shaft assembly automatic assembling equipment provided in the first embodiment of the application, the second embodiment of the application provides another small shaft assembly automatic assembling equipment. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.

[0071] Specifically, the difference between the small shaft assembly automatic assembling equipment provided in the second embodiment of the application lies in that the foot mechanism 9 comprises a support pipe 91, a threaded pipe 92, a universal wheel 93, a backing plate 94 and a rubber pad 95, the top of the support pipe 91 is fixedly installed at the bottom of the cabinet 1, the threaded pipe 92 is threadedly connected to the outer side of the support pipe 91, the universal wheel 93 is fixedly installed at the bottom of the support pipe 91, the backing plate 94 is fixedly installed at the bottom of the threaded pipe 92 and located at the outer side of the universal wheel 93, and the rubber pad 95 is fixedly installed at the bottom of the backing plate 94.

[0072] The working principle of the small shaft assembly automatic assembling equipment provided in the application is as follows:

[0073] When the user needs to move the position of the cabinet 1, the user can rotate the backing plate 94 to make the backing plate 94 drive the threaded pipe 92 to be threadedly connected to the outer side of the support pipe 91, so that the universal wheel 93 moves out from the inner side of the backing plate 94, at this time, the user can move the position of the cabinet 1 through the universal wheel 93, and after moving to the appropriate position, the backing plate 94 is rotated again to make the threaded pipe 92 be threadedly connected to the outer side of the support pipe 91, so that the backing plate 94 moves downward to support and limit the cabinet 1, thereby avoiding the movement of the cabinet 1 and adjusting the horizontal position of the cabinet 1.

[0074] Compared with the related art, the small shaft assembly automatic assembling equipment has the following beneficial effects:

[0075] Through cooperation of the support pipe 91, the threaded pipe 92, the universal wheel 93, the base plate 94 and the rubber pad 95 and the like, when in use, the universal wheel 93 rolls on the ground, facilitating the user to move the position of the cabinet 1, increasing the maneuverability of the cabinet 1, and enabling the base plate 94 to contact the ground, which can not only limit the cabinet 1, but also adjust the level of the cabinet 1.

[0076] Third embodiment

[0077] Please refer to Figure 9 Based on the small shaft assembly automatic assembling equipment provided by the first embodiment of the application, the third embodiment of the application provides another small shaft assembly automatic assembling equipment. The third embodiment is only a preferred mode of the first embodiment, and the implementation of the third embodiment does not affect the separate implementation of the first embodiment.

[0078] Specifically, the small shaft assembly automatic assembling equipment provided by the third embodiment of the application is different in that a small shaft assembly automatic assembling equipment is provided, both sides of the cabinet 1 are fixedly installed with threaded rings 10, the inner side of the threaded ring 10 is threadedly connected with a connecting ring 101, one end of the connecting ring 101 is fixedly installed with a filter frame 102, and the filter frame 102 is arranged on the side of the ventilating fan 11.

[0079] Through threadedly connecting the connecting ring 101 and the threaded ring 10, the user can conveniently disassemble and clean the filter frame 102.

[0080] The working principle of the small shaft assembly automatic assembling equipment provided by the application is as follows:

[0081] When in use, the user opens the ventilating fan 11, so as to blow the external air into the inner side of the cabinet 1, thereby cooling the inner side of the cabinet 1. At this time, through the arrangement of the filter frame 102, the air entering the inner side of the cabinet 1 can be filtered, so as to avoid impurities from entering the inner side of the cabinet 1.

[0082] Compared with the related art, the small shaft assembly automatic assembling equipment provided by the application has the following beneficial effects:

[0083] Through cooperation of the threaded ring 10, the connecting ring 101 and the filter frame 102 and the like, when in use, the impurities entering the inner side of the cabinet 1 can be filtered, thereby increasing the working environment of the inner side of the cabinet 1.

[0084] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which is made according to the content of the present application, shall be included in the patent protection scope of the present application.

Claims

1. A small axle assembly automatic assembly apparatus characterized by, It includes: Cabinet; Six-axis robot, one end of the six-axis robot is fixedly installed with pneumatic claw; Pressing mechanism, the pressing mechanism is arranged on the top of the cabinet; Dispensing mechanism, the dispensing mechanism is arranged on the top of the cabinet, and the dispensing mechanism is arranged on one side of the pressing mechanism; Shaft hole cleaning mechanism, the shaft hole cleaning mechanism is arranged on the top of the cabinet, and the shaft hole cleaning mechanism is arranged on one side of the dispensing mechanism; Pre-pressing mechanism, the pre-pressing mechanism is arranged on the top of the cabinet, and the pre-pressing mechanism is arranged on one side of the shaft hole cleaning mechanism; Reaming mechanism, the reaming mechanism is arranged on the top of the cabinet, and the reaming mechanism is arranged on one side of the pre-pressing mechanism; Shaft feeding mechanism, the shaft feeding mechanism is arranged on the top of the cabinet, and the shaft feeding mechanism is arranged on one side of the reaming mechanism.

2. A small shaft assembly automatic assembly apparatus according to claim 1, wherein The pressing mechanism includes a first support, a first module, a pressing head and a V-shaped iron, the bottom of the first support is fixedly installed on the top of the cabinet, the first module is fixedly installed on the side of the first support, the pressing head is fixedly installed on the moving end of the first module, the bottom of the V-shaped iron is fixedly installed on the top of the cabinet, and the V-shaped iron is arranged on the side of the first support.

3. A small shaft assembly automatic assembly apparatus according to claim 1, wherein The dispensing mechanism includes a second support, a rubber tube and a needle, the bottom of the second support is fixedly installed on the top of the cabinet, the rubber tube is arranged in the second support, and the needle is fixedly installed on the bottom of the rubber tube.

4. The automatic assembly apparatus for small shaft assemblies of claim 1 wherein, The shaft hole cleaning mechanism includes a third support, a chip removing air knife, a dust suction air cylinder, a dust suction fan and a dust collecting barrel, the bottom of the third support is fixedly installed on the top of the cabinet, the chip removing air knife is fixedly installed on the inner side of the third support, the dust suction air cylinder is fixedly installed on one end of the chip removing air knife, the dust suction fan is fixedly installed on one end of the dust suction air cylinder, and the dust collecting barrel is fixedly installed on the output end of the dust suction fan.

5. The automatic assembly apparatus for small shaft assemblies of claim 1 wherein, The pre-pressing mechanism includes a fourth support, a base, a pneumatic cylinder and a stock bin, the bottom of the fourth support is fixedly installed on the top of the cabinet, the base is fixedly installed on the top of the fourth support, the stock bin is fixedly installed on the top of the base, and the pneumatic cylinder is arranged on the inner side of the stock bin.

6. A small shaft assembly automatic assembly apparatus according to claim 1, wherein The reaming mechanism includes a fifth support, a second module, a first servo motor, a collet and a reamer, the bottom of the fifth support is fixedly installed on the top of the cabinet, the second module is fixedly installed on the side of the fifth support, the first servo motor is fixedly installed on the moving end of the second module, the collet is fixedly installed on the output end of the first servo motor, and the reamer is arranged on the inner side of the collet.

7. The automatic assembly apparatus for small shaft assemblies of claim 1 wherein, The shaft feeding mechanism includes a sixth support, a second servo motor and a tray, the bottom of the sixth support is fixedly installed on the top of the cabinet, the second servo motor is fixedly installed on one side of the sixth support, and the tray is fixedly installed on the output end of the second servo motor.

8. The automatic assembly apparatus for small shaft assemblies of claim 1, wherein, Ventilating fans are fixedly installed on both sides of the cabinet, and footing mechanisms are fixedly installed around the bottom of the cabinet.

9. A small shaft assembly automatic assembly apparatus according to claim 8, wherein, The foot mechanism comprises a support pipe, a threaded pipe, a universal wheel, a base plate and a rubber pad, the top of the support pipe is fixedly installed at the bottom of the cabinet, the threaded pipe is threadedly connected to the outer side of the support pipe, the universal wheel is fixedly installed at the bottom of the support pipe, the base plate is fixedly installed at the bottom of the threaded pipe and located at the outer side of the universal wheel, and the rubber pad is fixedly installed at the bottom of the base plate.

10. A small shaft assembly automatic assembly apparatus according to claim 9, wherein, Threaded rings are fixedly installed at the two sides of the cabinet, the inner side of the threaded ring is threadedly connected with a connecting ring, one end of the connecting ring is fixedly installed with a filter frame, and the filter frame is arranged at the side of the ventilation fan.

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