CN221755264U - Tubular motor pin press-fitting machine - Google Patents

Abstract

The utility model discloses a tubular motor press-fit pinning machine, comprising a frame, a workbench installed on the top of the frame, and a tubular motor mounting mechanism, a pinning mechanism and a sliding mechanism installed on the workbench; the tubular motor mounting mechanism is arranged on the front side of the workbench, and the tubular motor mounting mechanism comprises a limit support assembly for supporting the tubular motor and a rotating assembly for driving the tubular motor to rotate; a pinning mechanism is arranged on the rear side of the tubular motor mounting mechanism, and the pinning mechanism is fixedly mounted on the sliding mechanism. The tubular motor press-fit pinning machine provided by the utility model has a simple structure and a high degree of automation. Through the coordinated action of the tubular motor mounting mechanism, the pinning mechanism and the sliding mechanism, the drilling of pin holes and the pinning operations at different axial and radial positions of the tubular motor can be integrated and automatically completed, thereby improving production efficiency, ensuring product quality and reducing work hazards.

Description

A tubular motor press-fit pin machine

Technical Field

The utility model relates to the technical field of pinning machines, in particular to a tubular motor press-fitting pinning machine.

Background Art

The tubular motor is a high-performance motor, including a tubular casing and a drive assembly, a brake assembly and a stroke control assembly supported in the tubular casing by a bearing seat, wherein the brake assembly includes a motor right shaft fixing part, a right shaft, an electromagnet right shaft fixing part, an electromagnet and a bracket brake mechanism; the motor right shaft fixing part is fixed to the right end face of the low-speed motor to support one end of the right shaft; the electromagnet right shaft fixing part is installed on the right shaft, the electromagnet is fixed on the electromagnet right shaft fixing part, the bracket brake mechanism is installed on the right shaft and is located in the cavity between the right shaft and the tubular casing, and the electromagnet drives the bracket brake mechanism to brake.

During the production of existing tubular motors, it is necessary to perform the process of drilling pin holes and the process of driving pins on the surface of the tubular motor. In the existing tubular motors, the purpose of drilling pin holes is firstly achieved by a drilling machine; then the pins are manually placed into the pin holes of the product, and then the punch is manually operated to drive the pins into the pin holes. The production capacity of the above two processes is seriously affected by the efficiency of the workers, the quality of the products is difficult to guarantee, and manual operation is dangerous.

Based on the above situation, the utility model proposes a tubular motor press-fitting pin machine, which can effectively solve the above problems.

Utility Model Content

The purpose of the utility model is to provide a tubular motor press-fit pinning machine. The utility model provides a tubular motor press-fit pinning machine with a simple structure and a high degree of automation. Through the cooperation of the tubular motor installation mechanism, the pinning mechanism and the sliding mechanism, the machine can integrate and automatically complete the drilling of pin holes and the pinning operations at different axial and radial positions of the tubular motor, thereby improving production efficiency, ensuring product quality and reducing work hazards.

The utility model is realized by the following technical solutions:

A tubular motor press-fit pinning machine comprises a frame, a workbench installed on the top of the frame, and a tubular motor mounting mechanism, a pinning mechanism and a sliding mechanism installed on the workbench; the tubular motor mounting mechanism is arranged on the front side of the workbench, and the tubular motor mounting mechanism comprises a limit support assembly for supporting the tubular motor and a rotating assembly for driving the tubular motor to rotate; the rear side of the tubular motor mounting mechanism is provided with a pinning mechanism, and the pinning mechanism is fixedly mounted on the sliding mechanism.

According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the pinning mechanism includes a bench drill, a pinning machine and a vibrating material tray; the output end of the bench drill is fixedly connected to a drill bit; the pinning machine includes a pin seat, a movable groove is arranged inside the pin seat, the top of the movable groove is connected to one end of the conduit through a fixed block, and the other end of the conduit is connected to the vibrating material tray; a movable block is installed in the movable groove, and the movable block is provided with a mounting hole for accommodating the pin; one end of the movable block is fixedly connected to the telescopic end of the first cylinder, and the first cylinder is fixedly connected to one side of the pinning seat; support frames are respectively arranged on both sides of the pinning seat, and a second cylinder is fixedly connected to the inner side of one of the support frames, and the telescopic end of the second cylinder is fixedly connected to a connecting seat, and the connecting seat is fixedly connected to the pin seat; the top of the support frame is fixedly connected to a third cylinder through a mounting plate; the telescopic end of the third cylinder is fixedly connected to a ejector pin; through holes for the ejector pin to pass through are symmetrically provided on the upper and lower sides of the movable groove.

According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the sliding mechanism includes a slide plate, and a plurality of slide blocks are fixedly connected to both sides of the bottom of the slide plate, and the slide blocks are slidably connected to the slide rails, and the slide rails are fixedly connected to the upper surface of the workbench; a push plate is fixedly connected to the bottom of the slide plate, and the workbench is provided with a long strip hole for the push plate to pass through, and the bottom of the push plate is fixedly connected to the telescopic end of the fourth cylinder, and the fourth cylinder is fixedly connected to the lower surface of the workbench.

According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the rotating assembly includes a first driving motor, which is fixedly connected to the lower surface of the workbench; the output end of the first driving motor is fixedly connected to a first synchronous wheel, the first synchronous wheel is connected to a second synchronous wheel through a first synchronous belt, the second synchronous wheel is fixedly connected to a connecting shaft, and the connecting shaft is rotatably connected to a fixed seat through a bearing; an expansion shaft is arranged inside the connecting shaft, a conical portion is arranged at one end of the expansion shaft, a plurality of connecting plates uniformly distributed at equal angles are arranged on the outside of the conical portion, an expansion block is arranged between the connecting plates, the expansion block is installed in a tail stock, and the tail stock is threadedly connected to one end of the connecting shaft; the end of the expansion shaft away from the conical portion is fixedly connected to the telescopic end of the fifth cylinder, and the fifth cylinder is installed on the fixed seat.

According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the limit support assembly includes a second drive motor, and the second drive motor is fixedly connected to the lower surface of the workbench; the output end of the second drive motor is fixedly connected to the third synchronous wheel, and the third synchronous wheel is connected to the fourth synchronous wheel through a second synchronous belt, and the fourth synchronous wheel is fixedly connected to one end of the screw rod, and the other end of the screw rod is rotatably connected to a screw nut, and the screw nut is fixedly connected to a moving seat, and the moving seat is slidably connected to a sliding seat; one side of the moving seat is fixedly connected to an insertion rod, and one end of the insertion rod passes through the side wall of the sliding seat and is inserted into the end hole of the tubular motor; a support block is provided on one side of the sliding seat, and a semicircular groove is provided on the surface of the support block, and rollers are rotatably connected on both sides of the semicircular groove.

According to the above technical solution, as a further preferred technical solution of the above technical solution, a temporary placement rack is fixedly connected to the front of the workbench.

According to the above technical solution, as a further preferred technical solution of the above technical solution, the workbench is fixedly connected with a waste collection box.

According to the above technical solution, as a further preferred technical solution of the above technical solution, an operating platform is provided on the workbench.

According to the above technical solution, as a further preferred technical solution of the above technical solution, protective covers are provided on the outside of the rotating assembly and the limiting support assembly.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model provides a tubular motor press-fitting pinning machine, which has a simple structure and a high degree of automation. Through the cooperation of the tubular motor installation mechanism, the pinning mechanism and the sliding mechanism, the machine can integrate and automatically complete the drilling of pin holes and the pinning operations at different axial and radial positions of the tubular motor, thereby improving production efficiency, ensuring product quality and reducing work hazards.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is an overall schematic diagram of the utility model;

FIG2 is a schematic diagram of the internal structure of the utility model;

FIG3 is a schematic diagram of the internal structure of the utility model from another angle;

FIG4 is a schematic structural diagram of a pin driving machine according to the present invention;

FIG5 is a schematic structural diagram of another angle pinning machine of the utility model;

FIG6 is a schematic diagram of the structure of the moving block of the utility model;

FIG7 is a schematic diagram of the structure of the rotating assembly of the present utility model;

FIG8 is a schematic diagram of the internal structure of the rotating assembly of the present invention;

FIG9 is a schematic diagram of the connection structure between the connecting shaft, the tailstock and the spreading shaft of the present invention;

FIG. 10 is a schematic diagram of the support block structure of the present invention.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

A tubular motor press-fit pinning machine comprises a frame 1, a workbench 2 mounted on the top of the frame 1, and a tubular motor mounting mechanism, a pinning mechanism 5 and a sliding mechanism 6 mounted on the workbench 2; the tubular motor mounting mechanism is arranged on the front side of the workbench 2, and the tubular motor mounting mechanism comprises a limit support assembly 3 for supporting the tubular motor 6 and a rotating assembly 4 for driving the tubular motor 7 to rotate; the rear side of the tubular motor mounting mechanism is provided with a pinning mechanism 5, and the pinning mechanism 5 is fixedly mounted on the sliding mechanism 6.

The utility model has a simple structure and a high degree of automation. Through the cooperation of the tubular motor installation mechanism, the pinning mechanism 5 and the sliding mechanism 6, the drilling pin holes and the pinning operations at different axial and radial positions of the tubular motor 7 can be integrated and automatically completed, thereby improving production efficiency, ensuring product quality and reducing work hazards.

Furthermore, in another embodiment, the pinning mechanism 5 includes a bench drill 51, a pinning machine 52 and a vibrating material tray 53; the output end of the bench drill 51 is fixedly connected to a drill bit 54; the pinning machine 52 includes a pin seat 55, the pin seat 55 is provided with a movable groove 56 inside, the top of the movable groove 56 is connected to one end of a guide tube 58 through a fixed block 57, and the other end of the guide tube 58 is connected to the vibrating material tray 53; a movable block 59 is installed in the movable groove 56, and the movable block 59 is provided with a mounting hole 510 for accommodating a pin; one end of the movable block 59 is fixed to the telescopic end of the first cylinder 511 Fixed connection, the first cylinder 511 is fixedly connected to one side of the pin driving seat 55; support frames 512 are respectively provided on both sides of the pin driving seat 55, and the inner side of one of the support frames 512 is fixedly connected to the second cylinder 513, the telescopic end of the second cylinder 513 is fixedly connected to the connecting seat 514, and the connecting seat 514 is fixedly connected to the pin seat 55; the top of the support frame 512 is fixedly connected to the third cylinder 516 through the mounting plate 515; the telescopic end of the third cylinder 516 is fixedly connected to the ejector pin 517; the upper and lower sides of the movable groove 56 are symmetrically provided with through holes 518 for the ejector pin 517 to pass through.

The utility model is provided with a pinning mechanism 5. The drill bit 54 of the pinning mechanism 5 can complete the operation of drilling pin holes for the tubular motor 7 under the action of the bench drill 51; the pinning machine 52 of the pinning mechanism 5 can complete the pinning operation for the tubular motor 7. Specifically, the pin seat 55 of the pinning machine 52 receives the pins transported by the vibrating material tray 53 through the conduit 58 and drops the pins into the mounting hole 510 of the moving block 59. The moving block 59 moves forward under the action of the first cylinder 511, and aligns the position of the mounting hole 510 with the position of the through hole 518 of the moving groove 56. Then, under the action of the third cylinder 516, the ejector pin 517 is pushed downward to press the pin in the mounting hole 510 into the pin hole on the surface of the tubular motor.

Furthermore, in another embodiment, the sliding mechanism 6 includes a slide plate 61, and a plurality of slide blocks 62 are fixedly connected to both sides of the bottom of the slide plate 61, and the slide blocks 62 are slidably connected to the slide rails 63, and the slide rails 63 are fixedly connected to the upper surface of the workbench 2; a push plate 64 is fixedly connected to the bottom of the slide plate 61, and the workbench 2 is provided with a long strip hole 21 for the push plate 64 to pass through, and the bottom of the push plate 64 is fixedly connected to the telescopic end of the fourth cylinder 65, and the fourth cylinder 65 is fixedly connected to the lower surface of the workbench 2.

The utility model sets a sliding mechanism, and the slide plate 61 of the sliding mechanism slides under the interaction of the slider 62, the slide rail 63, the push plate 64 and the fourth cylinder 65, so that the pinning mechanism 5 moves in the left and right directions, and completes the drilling of pin holes and pinning operations at different axial positions of the tubular motor 7.

Further, in another embodiment, the rotating assembly 4 includes a first driving motor 41, which is fixedly connected to the lower surface of the workbench 2; the output end of the first driving motor 41 is fixedly connected to a first synchronous wheel 42, the first synchronous wheel 42 is connected to a second synchronous wheel 44 through a first synchronous belt 43, the second synchronous wheel 44 is fixedly connected to a connecting shaft 45, and the connecting shaft 45 is rotatably connected to a fixed seat 412 through a bearing; an expansion shaft 46 is arranged inside the connecting shaft 45, one end of the expansion shaft 46 is arranged with a conical portion 47, and a plurality of connecting pieces 48 uniformly distributed at equal angles are arranged on the outside of the conical portion 47, and expansion blocks 49 are arranged between the connecting pieces 48, and the expansion blocks 49 are installed in a tail stock 410, and the tail stock 410 is threadedly connected to one end of the connecting shaft 45; the end of the expansion shaft 46 away from the conical portion 47 is fixedly connected to the telescopic end of the fifth cylinder 411, and the fifth cylinder 411 is installed on the fixed seat 412.

The utility model can drive the tubular motor 7 to rotate by setting a rotating component 4, so that under the action of the pinning mechanism 5, the drilling of pin holes and pinning operations at different radial positions of the tubular motor 7 can be realized; specifically, the connecting shaft 45 and the expansion shaft 46 of the rotating component 4 are rotated under the interaction of the first drive motor 41, the first synchronous wheel 42, the first synchronous belt 43 and the second synchronous wheel 44, and the expansion shaft 46 slides axially with the connecting shaft 45 under the action of the fifth cylinder 411; since the expansion block 49 is installed inside the tail stock 410, when the relative position of the expansion block 49 and the tapered portion 47 of the expansion shaft 46 changes, the expansion block 49 is moved outward in the tail stock, so that the expansion block 49 can abut against the inner surface of the tubular motor 7, so that the tail stock 410 fixes the tubular motor 7.

Further, in another embodiment, the limit support assembly 3 includes a second drive motor 31, which is fixedly connected to the lower surface of the workbench 2; the output end of the second drive motor 31 is fixedly connected to the third synchronous wheel 32, and the third synchronous wheel 32 is connected to the fourth synchronous wheel 34 through the second synchronous belt 33, and the fourth synchronous wheel 34 is fixedly connected to one end of the screw rod 35, and the other end of the screw rod 35 is rotatably connected to the screw nut 36, and the screw nut 36 is fixedly connected to the moving seat 37, and the moving seat 37 is slidably connected to the sliding seat 38; one side of the moving seat 37 is fixedly connected to the insertion rod 39, and one end of the insertion rod 39 passes through the side wall of the sliding seat 38 and is inserted into the end hole of the tubular motor 7; a support block 310 is provided on one side of the sliding seat 38, and a semicircular groove 311 is opened on the surface of the support block 310, and rollers 312 are rotatably connected to the two sides of the semicircular groove 311.

The utility model sets a limit support component 3, which can provide limit support for one end of the tubular motor 7, thereby improving the stability of the tubular motor 7 during rotation, drilling pin holes and pinning operations; specifically, the insertion rod 39 of the limit support component 3 is inserted into the end hole of the tubular motor 7 under the interaction between the second drive motor 31, the third synchronous wheel 32, the second synchronous belt 33, the fourth synchronous wheel 34, the screw 35, the screw nut 36, the moving seat 37 and the sliding seat 38, and interacts with the support block 310, thereby improving the stability of the tubular motor 7 during rotation, drilling pin holes and pinning operations; the setting of the roller shaft 312 reduces the friction of the tubular motor 7 during rotation and increases the rotation efficiency.

Furthermore, in another embodiment, a temporary placement rack 8 is fixedly connected to the front of the workbench 2 .

By providing a temporary placement rack 8, it is convenient to place the tubular motor 7 to be processed, which shortens the time for replacement after processing and improves work efficiency.

Further, in another embodiment, the workbench 2 is fixedly connected with a waste collection box 9. By providing the waste collection box 9, it is convenient to collect the waste chips generated during drilling, and it is convenient to collect the pins that failed to be driven in when driving the pins.

Furthermore, in another embodiment, an operating platform 10 is provided on the workbench 2. By providing the operating platform, the entire press-fitting pin machine can be controlled.

Further, in another embodiment, a protective cover 11 is provided outside the rotating assembly 3 and the limiting support assembly 4. By providing the protective cover 11, the protection performance is increased to prevent dust in the air from affecting the rotating assembly 3 and the limiting support assembly 4.

The working principle of one embodiment of the utility model is as follows:

First, the tubular motor 7 to be processed is sleeved on the tailstock 410 of the rotating assembly 4, and then the expansion shaft 46 of the rotating assembly 4 slides axially with the connecting shaft 45 under the action of the fifth cylinder 411, so that the expansion block 49 moves outward in the tailstock 410, so that the expansion block 49 can abut against the inner surface of the tubular motor 7, so that the tailstock 410 fixes the tubular motor 7; then the second driving motor 31 is driven, and the insertion rod 39 of the limiting support assembly 3 is between the second driving motor 31, the third synchronous wheel 32, and the second synchronous wheel The belt 33, the fourth synchronous wheel 34, the screw rod 35, the screw rod nut 36, the movable seat 37 and the sliding seat 38 are inserted into the end hole of the tubular motor 7 under the interaction between them; then the pinning mechanism 5 is started, and the drill bit 54 of the pinning mechanism 5 can complete the operation of drilling the pin holes for the tubular motor 7 under the action of the bench drill 51, and then the slide plate 61 of the sliding mechanism is realized by the interaction of the slider 62, the slide rail 63, the push plate 64 and the fourth cylinder 65, so that the pinning machine 52 moves to the position where the pin holes are drilled. Then the pin holder 55 of the pinning machine 52 receives the pin delivered by the vibrating material tray 53 through the guide tube 58 and drops it into the mounting hole 510 of the moving block 59. The moving block 59 moves forward under the action of the first cylinder 511, and aligns the position of the mounting hole 510 with the position of the through hole 518 of the moving groove 56. Then, under the action of the third cylinder 516, the ejector pin 517 is pushed down to press the pin in the mounting hole 510 into the pin hole on the surface of the tubular motor 7. Then, the tubular motor 7 rotates at the first drive motor of the rotating assembly 4. 41 is rotated, and then the above operation is repeated to realize the drilling of pin holes and pinning operations at different radial positions of the tubular motor 7; and when it is necessary to drill pin holes and pinning operations at different axial positions of the tubular motor 7, the slide plate 61 of the sliding mechanism slides under the interaction of the slider 62, the slide rail 63, the push plate 64 and the fourth cylinder 65, thereby realizing the left and right movement of the pinning mechanism 5, and then the above operation is repeated to complete the drilling of pin holes and pinning operations at different axial positions of the tubular motor 7.

According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the tubular motor press-fitting pin machine of the utility model, and can produce the positive effects recorded in the utility model.

Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. A tubular motor press-fit pinning machine, characterized in that it comprises a frame (1), a workbench (2) mounted on the top of the frame (1), and a tubular motor mounting mechanism, a pinning mechanism (5) and a sliding mechanism (6) mounted on the workbench (2); the tubular motor mounting mechanism is arranged on the front side of the workbench (2), and the tubular motor mounting mechanism comprises a limit support assembly (3) for supporting the tubular motor (7) and a rotating assembly (4) for driving the tubular motor (7) to rotate; the rear side of the tubular motor mounting mechanism is provided with a pinning mechanism (5), and the pinning mechanism (5) is fixedly mounted on the sliding mechanism (6). 2. A tubular motor press-fit pinning machine according to claim 1, characterized in that: the pinning mechanism (5) comprises a bench drill (51), a pinning machine (52) and a vibrating material tray (53); the output end of the bench drill (51) is fixedly connected to a drill bit (54); the pinning machine (52) comprises a pin seat (55), a movable groove (56) is arranged inside the pin seat (55), the top of the movable groove (56) is connected to one end of a guide tube (58) through a fixed block (57), and the other end of the guide tube (58) is connected to the vibrating material tray (53); a movable block (59) is installed in the movable groove (56), and the movable block (59) is provided with a mounting hole (510) for accommodating a pin; one end of the movable block (59) is connected to the first The telescopic end of the cylinder (511) is fixedly connected, and the first cylinder (511) is fixedly connected to one side of the pin seat (55); support frames (512) are respectively provided on both sides of the pin seat (55), and the inner side of one of the support frames (512) is fixedly connected to the second cylinder (513), and the telescopic end of the second cylinder (513) is fixedly connected to a connecting seat (514), and the connecting seat (514) is fixedly connected to the pin seat (55); the top of the support frame (512) is fixedly connected to a third cylinder (516) through a mounting plate (515); the telescopic end of the third cylinder (516) is fixedly connected to a ejector pin (517); and through holes (518) for the ejector pin (517) to pass through are symmetrically provided on the upper and lower sides of the movable groove (56). 3. A tubular motor press-fitting pin machine according to claim 1, characterized in that: the sliding mechanism (6) includes a slide plate (61), and a plurality of slide blocks (62) are fixedly connected to the two sides of the bottom of the slide plate (61), and the slide blocks (62) are slidably connected to the slide rails (63), and the slide rails (63) are fixedly connected to the upper surface of the workbench (2); the bottom of the slide plate (61) is fixedly connected to a push plate (64), and the workbench (2) is provided with a strip-shaped long hole (21) for the push plate (64) to pass through, and the bottom of the push plate (64) is fixedly connected to the telescopic end of the fourth cylinder (65), and the fourth cylinder (65) is fixedly connected to the lower surface of the workbench (2). 4. A tubular motor press-fitting pin machine according to claim 1, characterized in that: the rotating assembly (4) comprises a first drive motor (41), the first drive motor (41) is fixedly connected to the lower surface of the workbench (2); the output end of the first drive motor (41) is fixedly connected to a first synchronous wheel (42), the first synchronous wheel (42) is connected to a second synchronous wheel (44) through a first synchronous belt (43), the second synchronous wheel (44) is fixedly connected to a connecting shaft (45), and the connecting shaft (45) is rotatably connected to a fixed seat (412) through a bearing; the connecting shaft ( A spreading shaft (46) is arranged inside the connecting shaft (45), one end of the spreading shaft (46) is arranged with a conical portion (47), a plurality of connecting pieces (48) uniformly distributed at equal angles are arranged outside the conical portion (47), a spreading block (49) is arranged between the connecting pieces (48), the spreading block (49) is installed in a tail seat (410), and the tail seat (410) is threadedly connected to one end of the connecting shaft (45); one end of the spreading shaft (46) away from the conical portion (47) is fixedly connected to the telescopic end of the fifth cylinder (411), and the fifth cylinder (411) is installed on the fixing seat (412). 5. A tubular motor press-fitting pin machine according to claim 1, characterized in that: the limit support assembly (3) comprises a second drive motor (31), the second drive motor (31) is fixedly connected to the lower surface of the workbench (2); the output end of the second drive motor (31) is fixedly connected to the third synchronous wheel (32), the third synchronous wheel (32) is connected to the fourth synchronous wheel (34) through a second synchronous belt (33), the fourth synchronous wheel (34) is fixedly connected to one end of the screw rod (35), and the other end of the screw rod (35) is rotatably connected to the screw rod screw The screw nut (36) is fixedly connected to a movable seat (37), and the movable seat (37) is slidably connected to a sliding seat (38); a plug rod (39) is fixedly connected to one side of the movable seat (37), and one end of the plug rod (39) passes through the side wall of the sliding seat (38) and is inserted into the end hole of the tubular motor (7); a support block (310) is provided on one side of the sliding seat (38), and a semicircular groove (311) is provided on the surface of the support block (310), and roller shafts (312) are rotatably connected to the two sides of the semicircular groove (311). 6. A tubular motor press-fit pinning machine according to claim 1, characterized in that a temporary placement rack (8) is fixedly connected to the front of the workbench (2). 7. A tubular motor press-fitting pinning machine according to claim 1, characterized in that a waste collection box (9) is fixedly connected to the workbench (2). 8. A tubular motor press-fitting pinning machine according to claim 1, characterized in that an operating platform (10) is provided on the workbench (2). 9. A tubular motor press-fit pinning machine according to claim 1, characterized in that a protective cover (11) is provided outside the rotating assembly (4) and the position-limiting support assembly (3).