Automatic assembly machine for motor output rotating shaft

Abstract

The invention relates to the field of motor output rotating shaft assembling, in particular to an automatic assembling machine for a motor output rotating shaft, which comprises a machine tool, the top end of the machine tool is rotatably connected with a multi-station rotating disc, a plurality of bases are arranged at the top end of the multi-station rotating disc in an annular array and used for positioning the rotating shaft, and a butter spraying mechanism is arranged at the top end of the machine tool. The storage box, the bottom cover and the barrel are arranged, the axis of the bottom cover is concentric with the rotating shaft at the corresponding position, so that the injection pipe does circular motion around the axis of the rotating shaft, meanwhile, the space in the shell is compressed through the piston mechanism, and the injection pipe evenly injects butter along the edge track of the rotating shaft; on one hand, the lubricity between the rotating shaft and the matching surface of the shaft sleeve is improved, and on the other hand, after assembly is completed, a tiny gap between the cover plate and the rotating shaft is filled with the lubricating oil, a certain sealing barrier is formed, moisture and corrosive substances in external air can be isolated, and the matching surface is protected against corrosion.

Description

Technical Field

[0001] The present invention relates to the field of motor output shaft assembly, and in particular to an automatic assembly machine for a motor output shaft. Background Art

[0002] With the continuous development of the motor industry, the scope and connotation of motor products have also continued to expand. Motor products are widely used in various fields such as metallurgy, electric power, petrochemicals, coal, mining, building materials, papermaking, municipal engineering, water conservancy, shipbuilding, and port loading and unloading. The motor output shaft mechanism consists of three major components: the cover plate, the sleeve, and the output shaft. The sleeve needs to be assembled into the mounting hole of the cover plate, and the output shaft is assembled into the sleeve, finally completing the assembly of the output shaft mechanism.

[0003] For example, the invention patent with publication number CN115890235A discloses an automated assembly equipment for a motor output shaft mechanism, which includes: a multi-station turntable mechanism, a cover plate vibration plate mechanism surrounding the multi-station turntable mechanism, a cover plate feeding mechanism, a sleeve vibration plate mechanism, a sleeve feeding mechanism, an output shaft vibration plate mechanism, an output shaft feeding mechanism and a feeding mechanism.

[0004] Regarding the above case, there are still the following deficiencies:

[0005] For example, in order to ensure the lubrication between the mating surfaces of the shaft and the sleeve during assembly, grease needs to be pre-applied on the surface of the shaft using a grease gun. However, due to the high viscosity and poor fluidity of grease, traditional spraying methods make it difficult to form a uniform lubrication layer on the surface of the shaft, which can easily lead to insufficient lubrication of the mating surfaces.

[0006] To this end, the present invention proposes an automatic assembly machine for a motor output shaft to solve the above problems. Summary of the Invention

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an automated assembly machine for a motor output shaft, comprising a machine tool, wherein a multi-station rotary disk is rotatably connected to the top of the machine tool, a plurality of bases are provided in a circular array at the top of the multi-station rotary disk for positioning the shaft, and a grease spraying mechanism is provided at the top of the machine tool, wherein the grease spraying mechanism comprises:

[0008] A base plate, the base plate being disposed on a machine tool, the end of the base plate being fixedly connected to a storage box, the bottom end of the storage box being sealingly and rotatably connected to a bottom cover, the top end of the storage box being fixedly connected to a drive motor, the output shaft of the drive motor being fixedly connected to the axis of the bottom cover, and the axis of the bottom cover being concentric with the rotating shaft at the corresponding position;

[0009] A cylinder, the cylinder being fixedly connected to the bottom end of the bottom cover, the top end of the cylinder being fixedly connected to a communication pipe, the top end of the communication pipe passing through the bottom cover and communicating with the storage box, the communication pipe being provided with a first one-way valve, the bottom end of the cylinder being fixedly connected to an injection tube, the injection tube being provided with a second one-way valve, the bottom end of the injection tube being located above the mating surface between the rotating shaft and the sleeve;

[0010] The shell has one end fixedly connected to the cylinder, and a piston mechanism is provided in the shell to adjust the air pressure in the shell to achieve the injection of butter by the injection tube and the absorption of butter by the cylinder.

[0011] Preferably, the piston mechanism comprises:

[0012] a sealing piston, the sealing piston being sealingly and slidingly connected in the housing;

[0013] A connecting rod, the connecting rod is fixedly connected to the sealing piston, a sliding pin is fixedly connected to the top of the connecting rod, and a first spring is fixedly connected between the sealing piston and the housing;

[0014] A guide groove is provided at the bottom end of the substrate, wherein the starting end and the ending end of the guide groove are both located on one side of the center of the bottom cover, the starting end is away from the center of the bottom cover, and the ending end is close to the center of the bottom cover, the starting end and the ending end are connected by a straight groove, and the sliding pin is slidably connected in the guide groove.

[0015] Preferably, it further comprises a fixing frame, which is fixedly connected to the top of the machine tool, a cylinder is fixedly connected to the top of the fixing frame, the end of the telescopic rod of the cylinder is fixedly connected to the base plate, and the base plate is slidably connected to the top of the fixing frame.

[0016] Preferably, it also includes:

[0017] Two connecting plates, the two connecting plates are fixedly connected to the side walls of the fixing frame, and the side walls of the two connecting plates are both provided with oblique grooves;

[0018] A connecting frame, one end of which is rotatably connected to a sealing cover, and the other end of which is symmetrically fixedly connected to sliders, the two sliders being slidably connected in two inclined grooves respectively, and a second spring being fixedly connected between the sliders and the inclined grooves;

[0019] The pushing component is linked with the movement of the base plate. When the base plate drives the injection tube away from the rotating shaft, the pushing component pushes the connecting frame to move toward the base plate. Driven by the inclined groove, the connecting frame drives the sealing cover to move upward to seal the bottom end of the injection tube.

[0020] Preferably, the pushing assembly includes:

[0021] An arc-shaped push plate, the arc-shaped push plate is fixedly connected to the connecting frame, and the arc-shaped push plate is rotatably connected to the sealing cover;

[0022] The outer side wall of the injection tube is fixedly connected with an arc-shaped pushing block which is matched with the arc-shaped pushing plate.

[0023] Preferably, it also includes:

[0024] A scraper, the scraper is fixedly connected in the sealing cover, and a flexible scraper strip is fixedly connected to the top of the scraper;

[0025] The rotary drive mechanism is used to drive the sealing cover to rotate, so that the scraper rotates and cleans the butter remaining at the bottom end of the injection tube through the flexible scraper.

[0026] Preferably, a heating chamber is provided in the sealing cover.

[0027] Preferably, a collecting box is fixed to the side wall of the fixing frame, and a conduit is rotatably connected to the center of the bottom end of the sealing cover, and the other end of the conduit is connected to the collecting box for draining the liquefied butter into the collecting box.

[0028] Preferably, the rotation drive mechanism includes:

[0029] a rack fixedly connected to a side wall of the fixing frame;

[0030] The gear is fixedly sleeved on the surface of the sealing cover.

[0031] Preferably, the end of the connecting rod is fixedly connected to a permanent magnet, and the bottom end of the substrate is fixedly connected to a position corresponding to the permanent magnet with an induction electromagnet.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention sets a storage box, a bottom cover and a cylinder. Since the axis of the bottom cover is concentric with the rotating shaft at the corresponding position, the injection tube makes a circular motion around the axis of the rotating shaft. In the process of the injection tube making a circular motion around the axis of the rotating shaft, the piston mechanism compresses the space in the shell, so that the pressure in the shell and the pressure in the cylinder increase. At this time, the first one-way valve is closed under the action of pressure, and the connecting pipe is sealed to prevent the butter in the cylinder from entering the storage box. The second one-way valve is opened under the action of pressure, so that the injection tube sprays the butter evenly along the edge trajectory of the rotating shaft. After the oil spraying is completed, the air pressure in the shell is reduced by the piston mechanism, so that the air pressure in the cylinder is reduced. The first one-way valve opens under the action of suction, cancels the seal on the connecting pipe, and the second one-way valve closes under the action of suction, seals the injection tube, and prevents butter unloading, thereby replenishing the butter in the cylinder and preparing for the next butter injection.

[0034] 2. The present invention provides a sealing piston, a connecting rod and a guide groove. When the bottom cover drives the cylinder and the shell to rotate, the sliding pin slides along the guide groove. The sliding pin starts from the starting end of the guide groove and then rotates to the end end. Since the starting end is far away from the center of the bottom cover and the end end is close to the center of the bottom cover, the sliding pin drives the connecting rod to move toward the center of the bottom cover during the sliding along the guide groove, so that the sealing piston compresses the space inside the shell, and the injection tube injects the butter evenly on the surface of the rotating shaft. When the sliding pin moves to the end end of the guide groove, under the action of the first spring, the sliding pin moves along the straight groove to the starting end of the guide groove, automatically replenishing the butter in the cylinder and preparing for the next injection of butter.

[0035] 3. After the butter is injected, the present invention drives the base plate to move by the cylinder, so that the injection tube is away from the rotating shaft. During the movement of the injection tube, the arc-shaped pushing block squeezes and pushes the arc-shaped pushing plate, so that the connecting frame moves, and the slider moves along the inclined groove. The inclined groove drives the connecting frame to drive the sealing cover to move upward, so that the sealing cover is inserted into the bottom end of the injection tube, and the bottom end of the injection tube is sealed to prevent the butter remaining at the bottom end of the injection tube from dripping onto the machine tool and causing pollution.

[0036] 4. The present invention sets a scraper, a gear and a rack. When the connecting frame drives the sealing cover to move toward the fixed frame, the gear and the rack engage with each other, driving the sealing cover to rotate, causing the scraper to rotate, and the flexible scraper cleans the butter remaining at the bottom of the injection tube to avoid blockage at the bottom of the injection tube.

[0037] 5. The present invention provides a heating chamber and a collection box, heats the butter in the sealing cover, melts the butter at the bottom end of the injection tube and on the scraper, and then drains the liquefied butter into the collection box through a conduit for recovery and utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The overall structure of the present invention Figure 1 ;

[0039] Figure 2 The overall structure of the present invention Figure 2 ;

[0040] Figure 3 This is a schematic diagram of the connection between the base plate and the storage box of the present invention;

[0041] Figure 4 Schematic diagram of the connection between the substrate and the guide groove of the present invention;

[0042] Figure 5 Schematic diagram of the connection between the cylinder and the shell in the present invention;

[0043] Figure 6 Schematic diagram of the connection between the sealing cover and the conduit in the present invention;

[0044] Figure 7 It is a cross-sectional view of the sealing cover of the present invention.

[0045] In the figure: machine tool 1, multi-station rotary disk 2, base 3, shaft loading mechanism 4, butter spraying mechanism 5, cover assembly mechanism 6, shaft sleeve assembly mechanism 7, shaft unloading mechanism 8, base plate 9, guide groove 901, straight groove 902, storage box 10, bottom cover 11, drive motor 12, cylinder 13, connecting pipe 14, first one-way valve 15, injection tube 16, second one-way valve 17, shell 18, sealing piston 19, connecting rod 20, sliding pin 21, first spring 22, fixing frame 23, cylinder 24, connecting plate 25, inclined groove 26, connecting frame 27, slider 28, second spring 29, arc push plate 30, arc push block 31, sealing cover 32, heating chamber 3201, scraper 3202, flexible scraper 3203, collecting box 33, conduit 34, rack 35, gear 36, permanent magnet 37, induction electromagnet 38. DETAILED DESCRIPTION

[0046] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0047] like Figures 1 to 7 The automated assembly machine for a motor output shaft shown includes a machine tool 1, a multi-station rotary disk 2 rotatably connected to the top of the machine tool 1, and a plurality of bases 3 arranged in a circular array on the top of the multi-station rotary disk 2 for positioning the shaft;

[0048] The machine tool 1 is provided with a shaft loading mechanism 4, a grease spraying mechanism 5, a cover assembly mechanism 6, a shaft sleeve assembly mechanism 7, and a shaft unloading mechanism 8 in sequence around the track of the multi-station rotary disk 2;

[0049] The control motor in the machine tool 1 drives the multi-station rotary disk 2 to rotate periodically. After each rotation of the multi-station rotary disk 2, the shaft loading mechanism 4, the grease spraying mechanism 5, the cover assembly mechanism 6, the shaft sleeve assembly mechanism 7, and the shaft unloading mechanism 8 respectively perform the following operations:

[0050] The shaft feeding mechanism 4 grabs the shaft and places it on the base 3 at the corresponding position. The grease spraying mechanism 5 sprays grease onto the shaft at the corresponding position. The cover assembly mechanism 6 grabs the cover and sleeves it on the outer wall of the shaft. The sleeve assembly mechanism 7 grabs the sleeve and sleeves it onto the shaft. Finally, the shaft unloading mechanism 8 removes the assembled output shaft from the base 3.

[0051] The butter spraying mechanism 5 comprises:

[0052] Base plate 9 is provided on machine tool 1. A storage box 10 is fixedly connected to the end of base plate 9. A bottom cover 11 is sealingly and rotatably connected to the bottom end of storage box 10. A drive motor 12 is fixedly connected to the top end of storage box 10. The output shaft of drive motor 12 is fixedly connected to the axis of bottom cover 11. The axis of bottom cover 11 is concentric with the rotating shaft at the corresponding position.

[0053] The cylinder 13 is fixedly connected to the bottom end of the bottom cover 11. The top of the cylinder 13 is fixedly connected to a connecting pipe 14. The top of the connecting pipe 14 passes through the bottom cover 11 and is connected to the storage box 10. A first one-way valve 15 is provided in the connecting pipe 14. The bottom end of the cylinder 13 is fixedly connected to an injection tube 16. A second one-way valve 17 is provided in the injection tube 16. The bottom end of the injection tube 16 is located above the mating surface of the rotating shaft and the shaft sleeve;

[0054] The housing 18 has one end fixedly connected to the cylinder 13. A piston mechanism is provided in the housing 18 for adjusting the air pressure in the housing 18 so as to enable the injection tube 16 to inject butter and the cylinder 13 to absorb butter.

[0055] In the prior art, in order to ensure lubricity between the mating surfaces of the shaft and the sleeve during assembly, grease needs to be pre-applied to the shaft surface using a grease gun. However, due to the high viscosity and poor fluidity of grease, it is difficult to form a uniform lubricating layer on the shaft surface using the traditional spraying method, which can easily lead to insufficient lubrication of the mating surfaces. This technical solution can solve the above problem. The specific operation is as follows:

[0056] When it is necessary to inject butter onto the rotating shaft, the drive motor 12 is started to rotate the bottom cover 11, and the cylinder 13 drives the shell 18 to rotate. Since the axis of the bottom cover 11 is concentric with the rotating shaft at the corresponding position, the injection tube 16 moves in a circular motion around the axis of the rotating shaft.

[0057] During the circular motion of the injection tube 16 around the axis of the rotating shaft, the space inside the housing 18 is compressed by the piston mechanism, causing the pressure inside the housing 18 to increase, and the pressure inside the cylinder 13 to increase. At this time, the first one-way valve 15 is closed under the action of pressure, sealing the connecting pipe 14 to prevent the butter in the cylinder 13 from entering the storage box 10. The second one-way valve 17 is opened under the action of pressure, allowing the injection tube 16 to spray the butter evenly along the edge of the rotating shaft. On the one hand, the lubricity between the mating surface of the rotating shaft and the sleeve is improved. On the other hand, after assembly, the butter is filled in the tiny gap between the cover plate and the rotating shaft to form a certain sealing barrier, which helps to isolate moisture and corrosive substances in the external air and protect the mating surface from corrosion.

[0058] After the driving motor 12 drives the bottom end to rotate one circle and return to the initial position, the driving motor 12 is turned off, and the air pressure in the shell 18 is reduced through the piston mechanism, so that the air pressure in the cylinder 13 is reduced. The first one-way valve 15 is opened under the action of suction, and the seal on the connecting pipe 14 is cancelled. The second one-way valve 17 is closed under the action of suction, and the injection tube 16 is sealed to avoid butter unloading, thereby replenishing the butter in the cylinder 13 and preparing for the next butter injection.

[0059] Furthermore, the piston mechanism includes a sealing piston 19, which is sealingly and slidingly connected in the housing 18; a connecting rod 20, which is fixedly connected to the sealing piston 19, a sliding pin 21 is fixedly connected to the top of the connecting rod 20, and a first spring 22 is fixedly connected between the sealing piston 19 and the housing 18;

[0060] A guide groove 901 is formed at the bottom end of the base plate 9. The starting end and the ending end of the guide groove 901 are both located on one side of the center of the bottom cover 11, with the starting end being away from the center of the bottom cover 11 and the ending end being close to the center of the bottom cover 11. The starting end and the ending end are connected by a straight groove 902. The sliding pin 21 is slidably connected in the guide groove 901.

[0061] Specifically, by setting the sealing piston 19, connecting rod 20 and guide groove 901, when the bottom cover 11 drives the cylinder 13 and the shell 18 to rotate, the sliding pin 21 slides along the guide groove 901, and the sliding pin 21 starts from the starting end of the guide groove 901 and then rotates to the end end. Since the starting end is far away from the center of the bottom cover 11 and the end end is close to the center of the bottom cover 11, the sliding pin 21 drives the connecting rod 20 to move toward the center of the bottom cover 11 during the sliding process along the guide groove 901, so that the sealing piston 19 compresses the space inside the shell 18. Under the above principle, the injection tube 16 injects the butter evenly on the surface of the rotating shaft. When the sliding pin 21 moves to the end end of the guide groove 901, under the action of the first spring 22, the sliding pin 21 moves along the straight groove 902 to the starting end of the guide groove 901. Under the above principle, the butter in the cylinder 13 is automatically replenished to prepare for the next butter injection.

[0062] As a further embodiment of the present invention, it also includes a fixed frame 23, the fixed frame 23 is fixedly connected to the top of the machine tool 1, the top of the fixed frame 23 is fixedly connected to the cylinder 24, the end of the telescopic rod of the cylinder 24 is fixedly connected to the base plate 9, and the base plate 9 is slidably connected to the top of the fixed frame 23;

[0063] Specifically, after the butter is injected, the cylinder 24 drives the substrate 9 to move so that the injection tube 16 is away from the rotating shaft to avoid interfering with the rotation of the multi-station rotary disk 2. When the multi-station rotary disk 2 moves the next rotating shaft to the position of the butter spraying mechanism 5, the cylinder 24 drives the substrate 9 to move so that the injection tube 16 moves to the top of the rotating shaft, and then the above operation is performed to spray butter on the surface of the rotating shaft.

[0064] As a further embodiment of the present invention, it also includes:

[0065] Two connecting plates 25, the two connecting plates 25 are fixedly connected to the side walls of the fixing frame 23, and the side walls of the two connecting plates 25 are both provided with inclined grooves 26;

[0066] A connecting frame 27, one end of which is rotatably connected to a sealing cover 32, and the other end of which is symmetrically fixedly connected to sliders 28, the two sliders 28 are respectively slidably connected in the two inclined grooves 26, and a second spring 29 is fixedly connected between the sliders 28 and the inclined grooves 26;

[0067] The pushing assembly is linked with the movement of the base plate 9. When the base plate 9 drives the injection tube 16 away from the rotating shaft, the pushing assembly pushes the connecting frame 27 to move toward the base plate 9. Driven by the inclined groove 26, the connecting frame 27 drives the sealing cover 32 to move upward to seal the bottom end of the injection tube 16.

[0068] The push assembly includes an arc-shaped push plate 30, which is fixedly connected to the connecting frame 27 and is rotatably connected to the sealing cover 32; an arc-shaped push block 31 adapted to the arc-shaped push plate 30 is fixedly connected to the outer wall of the injection tube 16;

[0069] Specifically, after the butter is injected, the cylinder 24 drives the base plate 9 to move, so that the injection tube 16 is away from the rotating shaft. During the movement of the injection tube 16, the arc-shaped pushing block 31 squeezes and pushes the arc-shaped pushing plate 30, so that the connecting frame 27 moves, and the slider 28 moves along the inclined groove 26. Driven by the inclined groove 26, the connecting frame 27 drives the sealing cover 32 to move upward, so that the sealing cover 32 is inserted into the bottom end of the injection tube 16, and the bottom end of the injection tube 16 is sealed to prevent the butter remaining at the bottom end of the injection tube 16 from dripping onto the machine tool 1 and causing pollution.

[0070] When the multi-station rotary disk 2 moves the next rotating shaft to the position of the butter spraying mechanism 5, the cylinder 24 drives the base plate 9 to move, so that the injection tube 16 moves to the top of the rotating shaft. During the movement of the injection tube 16, the arc-shaped push block 31 cancels the push on the arc-shaped push plate 30. Under the action of the second spring 29, the connecting frame 27 drives the slider 28 to move. Under the drive of the inclined groove 26, the connecting frame 27 drives the sealing cover 32 to move downward, thereby canceling the seal on the injection tube 16.

[0071] As a further embodiment of the present invention, it also includes:

[0072] The scraper 3202 is fixedly connected to the sealing cover 32, and a flexible scraper strip 3203 is fixedly connected to the top of the scraper 3202;

[0073] The rotary drive mechanism is used to drive the sealing cover 32 to rotate, so that the scraper 3202 rotates and cleans the butter remaining at the bottom end of the injection tube 16 through the flexible scraper 3203;

[0074] The rotary drive mechanism includes a rack 35, which is fixedly connected to the side wall of the fixed frame 23; a gear 36, which is fixedly sleeved on the surface of the sealing cover 32;

[0075] Specifically, by setting a scraper 3202, a gear 36 and a rack 35, when the connecting frame 27 drives the sealing cover 32 to move toward the fixed frame 23, the gear 36 engages with the rack 35, driving the sealing cover 32 to rotate, causing the scraper 3202 to rotate, and the flexible scraper 3203 is used to clean the butter remaining at the bottom end of the injection tube 16 to avoid blockage at the bottom end of the injection tube 16.

[0076] It should be noted that the length of the rack 35 is greater than the vertical stroke of the sealing cover 32 to ensure that the gear 36 is effectively engaged throughout the entire stroke.

[0077] As a further embodiment of the present invention, a heating chamber 3201 is provided in the sealing cover 32;

[0078] A collecting box 33 is fixed to the side wall of the fixing frame 23, and a conduit 34 is rotatably connected to the center of the bottom end of the sealing cover 32. The other end of the conduit 34 is connected to the collecting box 33 for draining the liquefied butter into the collecting box 33.

[0079] Specifically, by setting up a heating chamber 3201 (the temperature is 35 degrees to 40 degrees, and this temperature range ensures that the butter is liquefied and not degraded) and a collection box 33, the butter in the sealing cover 32 is heated to melt the butter at the bottom end of the injection tube 16 and the scraper 3202, and then the liquefied butter is drained into the collection box 33 through the conduit 34 for recycling and utilization.

[0080] As a further embodiment of the present invention, the end of the connecting rod 20 is fixedly connected to a permanent magnet 37, and the bottom end of the substrate 9 is fixedly connected to the position corresponding to the permanent magnet 37 with an induction electromagnet 38;

[0081] Specifically, by setting up a permanent magnet 37 and an induction electromagnet, when the cylinder 24 drives the substrate 9 to move and moves the injection tube 16 away from the rotating shaft, the induction electromagnet 38 generates a magnetic force different from that of the permanent magnet 37. Under the action of magnetic adsorption, the sealing piston 19 and the sliding pin 21 are reset to the specified position.

[0082] The working principle of the present invention is as follows:

[0083] The control motor in the machine tool 1 drives the multi-station rotary disk 2 to rotate periodically. After each rotation of the multi-station rotary disk 2, the shaft loading mechanism 4, the grease spraying mechanism 5, the cover assembly mechanism 6, the shaft sleeve assembly mechanism 7, and the shaft unloading mechanism 8 respectively perform the following operations:

[0084] The shaft feeding mechanism 4 grabs the shaft and places it on the base 3 at the corresponding position. The grease spraying mechanism 5 sprays grease onto the shaft at the corresponding position. The cover assembly mechanism 6 grabs the cover and sleeves it on the outer wall of the shaft. The sleeve assembly mechanism 7 grabs the sleeve and sleeves it onto the shaft. Finally, the shaft unloading mechanism 8 removes the assembled output shaft from the base 3.

[0085] The working principle of the butter spraying mechanism 5 is as follows:

[0086] First, the cylinder 24 drives the base plate 9 to move, so that the injection tube 16 moves above the rotating shaft. During the movement of the injection tube 16, the sealing cover 32 is separated from the injection tube 16 under the action of the second spring 29.

[0087] The driving motor 12 is started to rotate the bottom cover 11, and the cylinder 13 drives the shell 18 to rotate. Since the axis of the bottom cover 11 is concentric with the rotating shaft at the corresponding position, the injection tube 16 makes a circular motion around the axis of the rotating shaft, and the sliding pin 21 slides along the guide groove 901. The sliding pin 21 starts from the starting end of the guide groove 901 and then rotates to the end end. Since the starting end is far away from the center of the bottom cover 11 and the end end is close to the center of the bottom cover 11, during the sliding process of the sliding pin 21 along the guide groove 901, the connecting rod 20 is driven to move toward the center of the bottom cover 11, so that the sealing piston 19 compresses the space inside the shell 18, so that the pressure inside the shell 18 increases and the pressure inside the cylinder 13 increases. At this time, the first one-way valve 15 is closed under the action of pressure, and the connecting pipe 14 is sealed to prevent the butter in the cylinder 13 from entering the storage box 10. The second one-way valve 17 is opened under the action of pressure, so that the injection tube 16 sprays the butter evenly along the edge trajectory of the rotating shaft.

[0088] When the sliding pin 21 moves to the end of the guide groove 901, under the action of the first spring 22, the sliding pin 21 moves along the straight groove 902 to the starting end of the guide groove 901, and the sealing piston 19 is reset, so that the air pressure in the cylinder 13 is reduced. The first one-way valve 15 opens under the action of suction, canceling the seal on the connecting pipe 14. The second one-way valve 17 closes under the action of suction, sealing the injection tube 16 to prevent butter from being discharged, thereby replenishing the butter in the cylinder 13 and preparing for the next butter injection.

[0089] After the butter is injected, the injection tube 16 moves away from the rotating shaft, and the arc-shaped pushing block 31 squeezes and pushes the arc-shaped pushing plate 30, so that the connecting frame 27 moves, and the slider 28 moves along the inclined groove 26. Driven by the inclined groove 26, the connecting frame 27 drives the sealing cover 32 to move upward, so that the sealing cover 32 is inserted into the bottom end of the injection tube 16, and the bottom end of the injection tube 16 is sealed;

[0090] When the connecting frame 27 drives the sealing cover 32 to move toward the fixing frame 23, the gear 36 engages with the rack 35, driving the sealing cover 32 to rotate, causing the scraper 3202 to rotate, and the scraper cleans the butter remaining at the bottom end of the injection tube 16;

[0091] The scraped butter is heated in the heating chamber 3201 to melt the butter at the bottom of the injection tube 16 and on the scraper 3202. The liquefied butter is then drained into the collection box 33 through the conduit 34 for recycling and utilization.

[0092] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. An automated assembly machine for a motor output shaft, comprising a machine tool (1), wherein the top of the machine tool (1) is rotatably connected to a multi-station rotary disk (2), and a plurality of bases (3) are provided in a circular array at the top of the multi-station rotary disk (2) for positioning the shaft, characterized in that: A butter spraying mechanism (5) is provided at the top of the machine tool (1), and the butter spraying mechanism (5) comprises: A base plate (9), the base plate (9) is arranged on the machine tool (1), the end of the base plate (9) is fixedly connected to a storage box (10), the bottom end of the storage box (10) is sealed and rotatably connected to a bottom cover (11), the top end of the storage box (10) is fixedly connected to a drive motor (12), the output shaft of the drive motor (12) is fixedly connected to the axis of the bottom cover (11), and the axis of the bottom cover (11) is concentric with the rotating shaft at the corresponding position; A cylinder (13), the cylinder (13) is fixedly connected to the bottom end of the bottom cover (11), the top end of the cylinder (13) is fixedly connected to a connecting pipe (14), the top end of the connecting pipe (14) passes through the bottom cover (11) and is connected to the storage box (10), a first one-way valve (15) is provided in the connecting pipe (14), the bottom end of the cylinder (13) is fixedly connected to an injection pipe (16), a second one-way valve (17) is provided in the injection pipe (16), and the bottom end of the injection pipe (16) is located above the mating surface of the rotating shaft and the shaft sleeve; The housing (18) has one end fixedly connected to the cylinder (13). A piston mechanism is provided in the housing (18) for adjusting the air pressure in the housing (18) to enable the injection tube (16) to inject butter and the cylinder (13) to suck butter.

2. The automatic assembly machine for the motor output shaft according to claim 1, characterized in that: The piston mechanism comprises: a sealing piston (19) which is sealingly and slidingly connected in the housing (18); A connecting rod (20), the connecting rod (20) is fixedly connected to the sealing piston (19), a sliding pin (21) is fixedly connected to the top of the connecting rod (20), and a first spring (22) is fixedly connected between the sealing piston (19) and the housing (18); A guide groove (901) is provided at the bottom end of the base plate (9), a starting end and an ending end of the guide groove (901) are both located on one side of the center of the bottom cover (11), the starting end is away from the center of the bottom cover (11), and the ending end is close to the center of the bottom cover (11), the starting end and the ending end are connected by a straight groove (902), and the sliding pin (21) is slidably connected in the guide groove (901).

3. The automatic assembly machine for a motor output shaft according to claim 1, characterized in that: The machine tool (1) further comprises a fixing frame (23), the fixing frame (23) being fixedly connected to the top of the machine tool (1), the top of the fixing frame (23) being fixedly connected to a cylinder (24), the end of the telescopic rod of the cylinder (24) being fixedly connected to a base plate (9), and the base plate (9) being slidably connected to the top of the fixing frame (23).

4. The automatic assembly machine for the motor output shaft according to claim 3, characterized in that: Also includes: Two connecting plates (25), the two connecting plates (25) are fixedly connected to the side walls of the fixing frame (23), and the side walls of the two connecting plates (25) are both provided with an inclined groove (26); A connecting frame (27), one end of the connecting frame (27) is rotatably connected to a sealing cover (32), and the other end is symmetrically fixedly connected to sliders (28), the two sliders (28) are respectively slidably connected in the two inclined grooves (26), and a second spring (29) is fixedly connected between the slider (28) and the inclined groove (26); A pushing assembly is arranged to move in conjunction with the base plate (9). When the base plate (9) drives the injection tube (16) away from the rotating shaft, the pushing assembly pushes the connecting frame (27) to move toward the base plate (9). Driven by the inclined groove (26), the connecting frame (27) drives the sealing cover (32) to move upward to seal the bottom end of the injection tube (16).

5. The automatic assembly machine for the motor output shaft according to claim 4, characterized in that: The pushing component includes: An arc-shaped push plate (30), wherein the arc-shaped push plate (30) is fixedly connected to the connecting frame (27), and the arc-shaped push plate (30) is rotatably connected to the sealing cover (32); The outer side wall of the injection tube (16) is fixedly connected with an arc-shaped pushing block (31) adapted to the arc-shaped pushing plate (30).

6. The automatic assembly machine for the motor output shaft according to claim 4, characterized in that: Also includes: A scraper (3202), the scraper (3202) is fixedly connected in the sealing cover (32), and a flexible scraper strip (3203) is fixedly connected to the top of the scraper (3202); A rotary drive mechanism is used to drive the sealing cover (32) to rotate, so that the scraper (3202) rotates, and the butter remaining at the bottom end of the injection tube (16) is cleaned through the flexible scraper (3203).

7. The automatic assembly machine for the motor output shaft according to claim 4, characterized in that: A heating chamber (3201) is provided in the sealing cover (32).

8. The automatic assembly machine for the motor output shaft according to claim 7, characterized in that: A collecting box (33) is fixed to the side wall of the fixing frame (23), and a conduit (34) is rotatably connected to the center of the bottom end of the sealing cover (32), and the other end of the conduit (34) is connected to the collecting box (33) for draining the liquefied butter into the collecting box (33).

9. The automatic assembly machine for the motor output shaft according to claim 6, characterized in that: The rotary drive mechanism comprises: a rack (35), wherein the rack (35) is fixedly connected to a side wall of the fixing frame (23); A gear (36) is fixedly sleeved on the surface of the sealing cover (32).

10. The automatic assembly machine for motor output shaft according to claim 2, characterized in that: The end of the connecting rod (20) is fixedly connected to a permanent magnet (37), and the bottom end of the substrate (9) is fixedly connected to an induction electromagnet (38) at a position corresponding to the permanent magnet (37).

Images