CN216758845U

CN216758845U - Motor output shaft and worm pin pressing device

Info

Publication number: CN216758845U
Application number: CN202220230743.8U
Authority: CN
Inventors: 周杨洋; 吕正斌
Original assignee: Dongyang Linix Machine Electricity Co Ltd
Current assignee: Dongyang Linix Machine Electricity Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-17
Anticipated expiration: 2032-01-27

Abstract

The utility model relates to a motor output shaft and worm pin pressing device, which belongs to the technical field of motor assembly and comprises a base, wherein a fixing position for horizontally placing a power supply motor and a supporting position for supporting a worm from one side of the bottom are fixed on the base, the supporting position at least comprises a supporting block, a concave V-shaped groove which is horizontally communicated and matched with the circumferential surface of the worm is formed in the top of the supporting block, a press-mounting position for pressing a pin into a pin hole is arranged right above the supporting position, the press-mounting position comprises a pin pressing thimble which has magnetism and can be lifted up and down relative to the supporting block, and a pin which is concentric with the pin pressing thimble and is to be pressed into the pin hole is adsorbed at the lower end of the pin pressing thimble. The utility model has the advantages of realizing accurate positioning of the pin hole before assembly, effectively reducing assembly error, improving assembly precision, realizing automatic pressing-in of the pin, eliminating potential safety hazard, being convenient to operate, having high efficiency and the like.

Description

Motor output shaft and worm pin pressing device

Technical Field

The utility model relates to a motor output shaft and worm pin pressing device, and belongs to the technical field of motor assembly.

Background

When the existing motor output shaft is driven by a worm gear and a worm, the motor output shaft is often connected with the worm through a pin in order to realize synchronous rotation of the motor output shaft and the worm. At present, the pin assembling mode is mainly characterized in that an iron hammer is swung manually to knock, the pin is hit to enter a pin hole, and the assembling mode is easy to generate large assembling errors, so that the assembling precision is low, the potential safety hazard is large, the operation is inconvenient, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a motor output shaft and worm pin pressing device, which solves the problems that in the prior art, a large assembling error is easy to generate during pin assembling, the assembling precision is low, the potential safety hazard is large, the operation is inconvenient, the efficiency is low and the like.

The technical purpose of the utility model is mainly solved by the following technical scheme: the utility model provides a motor goes out axle and worm and presses round pin device, the fixed suit of worm in motor goes out epaxial and inside is formed with along the round pin hole that has a perfect understanding, includes the base, be fixed with the fixed position that the power supply machine level was placed and be used for carrying out the support position of bearing to the worm from bottom one side on the base, the support position includes the supporting shoe at least, the supporting shoe top is formed with recessed and level and link up and be used for with worm circumferential surface complex V type groove, be equipped with the pressure equipment position that is used for impressing the pin into the round pin hole directly over the support position, the pressure equipment position is including having magnetism and can be for the supporting shoe fore-set thimble that goes up and down, the lower extreme of pressure round pin thimble adsorbs rather than concentric pin hole of waiting to impress, the radial and the coincidence of the central line in V type groove of pressure round pin thimble.

When the device is used, the motor is firstly placed on the fixing position along the horizontal direction, the worm on the motor output shaft is positioned in the V-shaped groove, the axes of the motor output shaft and the worm are superposed with the central line of the V-shaped groove under the action of the V-shaped groove, the pin hole is ensured to be vertical, then the pin pressing thimble moves downwards relative to the supporting block, and the pin can be driven to move downwards and enter the pin hole when the pin pressing thimble moves downwards, so that the pin can be pressed into the pin hole to realize the assembly of the pin.

Preferably, the support position further comprises a positioning column which is arranged in the support block in a vertically sliding manner, the axis of the positioning column coincides with the axis of the pressing pin thimble, the upper end of the positioning column vertically extends upwards from the bottom of the V-shaped groove, so that the upper end of the positioning column extends into the pin hole to form sliding fit with the pin hole when the worm is located in the V-shaped groove, and a jacking spring which is elastically abutted against the lower end of the positioning column is arranged in the support block.

The positioning column is arranged in the supporting position in a vertically sliding manner, the axis of the positioning column is superposed with the axis of the pressing pin thimble, the upper end of the positioning column vertically extends upwards from the bottom of the V-shaped groove, so that the upper end of the positioning column extends into the pin hole to form sliding fit with the pin hole when the worm is positioned in the V-shaped groove, the supporting block is internally provided with the jacking spring elastically abutted against the lower end of the positioning column, the upper end of the positioning column can extend into the pin hole to form sliding fit with the pin hole when the worm on the motor output shaft is positioned in the V-shaped groove, the positioning of the pin hole can be further realized, the pin hole can be effectively prevented from being deviated in the pressing-in process, the assembling precision is further improved, the positioning column can be pushed to slide downwards to give way the pin after the pin is pressed into the pin hole, so that the pin can be pressed into a designated position in the pin hole, and the positioning column can be upwards reset to the initial position under the action of the jacking spring after the assembling is finished, for the next assembly.

Preferably, a convex annular bulge is formed on the positioning column at a position close to one side of the lower end of the positioning column, and the upper end of the jacking spring is abutted against the lower end face of the annular bulge.

The position close to one side of the lower end of the positioning column is provided with the convex annular bulge, the upper end of the jacking spring is abutted against the lower end face of the annular bulge, the positioning column can be limited when being reset upwards through the annular bulge, the positioning column is prevented from being pushed out of the supporting block due to overlarge return force of the jacking spring, and the part between the annular bulge and the lower end of the positioning column is convenient for installing the jacking spring.

Preferably, the press mounting position further comprises a positioning sleeve which is slidably sleeved on the outer side of the press pin thimble, a guide hole which is through up and down is formed in the positioning sleeve, the guide hole comprises an upper large-diameter part and a lower small-diameter part, the lower end of the press pin thimble extends into the press pin thimble from an upper end opening of the guide hole and is in sliding fit with the large-diameter part, a push-out part which extends downwards into the small-diameter part along the axis of the push pin thimble and is in sliding fit with the small-diameter part is formed in the center of the lower end of the press pin thimble, the push-out part is magnetic, and the pin extends into the small-diameter part from a lower end opening of the guide hole and is in sliding fit with the small-diameter part and is in contact with the lower end of the push-out part.

The press-fitting position is also provided with a positioning sleeve which is sleeved outside the press-pin thimble in a sliding manner, a guide hole which is communicated up and down is formed in the positioning sleeve, the guide hole comprises an upper large-diameter part and a lower small-diameter part, the lower end of the press-pin thimble extends into the press-pin thimble from an upper end opening of the guide hole and is in sliding fit with the large-diameter part, the center of the lower end of the press-pin thimble is provided with a push-out part which extends downwards along the axis of the press-pin thimble to the inside of the small-diameter part and is in sliding fit with the small-diameter part, the push-out part has magnetism, a pin extends into the small-diameter part from a lower end opening of the guide hole to be in sliding fit with the small-diameter part and is contacted with the lower end of the push-out part, so that the pin can be pressed into the pin hole through the push-out part when the press-pin thimble moves downwards, and the push-out part can absorb the pin, so that the pin is not easy to fall off and is fixed in the small-diameter part, the pin can be effectively prevented from inclining, the coaxiality of the pin and the pin hole is ensured, and the assembly precision is further improved.

Preferably, the press pin thimble penetrates through the positioning pin along the radial direction of the press pin thimble, a yielding groove for the positioning pin to ascend and descend vertically is formed in the positioning sleeve, two ends of the positioning pin extend into the yielding groove and form sliding fit with the yielding groove, an outward-protruding annular check ring is formed on one side of the upper end of the press pin thimble, and a reset spring sleeved on the outer side of the press pin thimble is arranged between the lower end of the annular check ring and the upper end of the positioning sleeve.

The locating pin is penetrated in the pressing pin thimble along the radial direction of the pressing pin thimble, the abdicating groove for the locating pin to ascend and descend is formed in the locating sleeve, two ends of the locating pin extend into the abdicating groove and form sliding fit with the abdicating groove, the convex annular retainer ring is formed on one side of the upper end of the pressing pin thimble, the reset spring sleeved outside the pressing pin thimble is arranged between the lower end of the annular retainer ring and the upper end of the locating sleeve, when the lower end of the locating sleeve is abutted against the surface of the worm, the pressing pin thimble can continuously move downwards to push the pin until the pin completely enters the pin hole, at the moment, the locating sleeve slides upwards relative to the pressing pin thimble and enables the reset spring to compress and store force, the reset spring can generate a reaction force to enable the lower end of the locating sleeve to apply a gradually increased pressure to the surface of the worm, the locating effect of the pin hole can be further enhanced, and the axial length required for the pin to be pressed into the pin hole by the push-out part can be reduced through the relative sliding of the pressing pin thimble and the locating sleeve, the cost is reduced, in addition, the positioning sleeve can be fixed on the outer side of the pressing pin thimble in a movable mode through the sliding fit between the positioning pin and the abdicating groove, and the pressing pin thimble and the positioning sleeve can slide relatively.

Preferably, in an initial state, the return spring makes the positioning pin contact with the upper end of the receding groove, and a gap is formed between the lower end surface of the pressing pin thimble and a step surface at the joint of the large diameter portion and the small diameter portion.

The positioning pin is contacted with the upper end of the abdicating groove through the reset spring, a gap is formed between the lower end surface of the pressing pin thimble and the step surface at the joint of the large-diameter part and the small-diameter part, so that when the lower end of the positioning sleeve is enabled to be propped against the surface of the worm, the pressing pin thimble can continuously move downwards to push the pin until the pin completely enters the pin hole, and the step surface at the joint of the large-diameter part and the small-diameter part can limit the pressing pin thimble when the pressing pin thimble moves downwards.

Preferably, the fixing position comprises a positioning block fixed on the base, the positioning block is provided with a positioning groove which is horizontally communicated and is opened upwards, and the inner shape of the positioning groove is matched with the outer shape of the motor.

Through being equipped with the locating piece that is fixed in on the base in fixed position, the locating piece is formed with the level and link up and the open-ended constant head tank that makes progress, the appearance looks adaptation of interior shape and motor of constant head tank for can realize the holistic location of motor when the motor is placed in the constant head tank, so that carry out the assembly of pin.

Therefore, the pin hole positioning device has the advantages that the pin hole can be accurately positioned before assembly, the pin can be accurately pressed into the pin hole, assembly errors can be effectively reduced, assembly precision is improved, automatic pressing of the pin can be realized, potential safety hazards can be eliminated, operation is convenient, efficiency is high, and the like.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic cross-sectional structure of the present invention.

The scores in the figures are as follows: 1. a base; 2. fixing the position; 3. a support position; 4. a support block; 5. a V-shaped groove; 6. press fitting; 7. a pin pressing thimble; 8. a pin hole; 9. a pin; 10. a positioning column; 11. a jacking spring; 12. a positioning sleeve; 13. a guide hole; 14. a large diameter portion; 15. a small diameter part; 16. a pushing-out part; 17. positioning pins; 18. a yielding groove; 19. an annular retainer ring; 20. a return spring; 21. positioning blocks; 22. positioning a groove; 23. an annular protrusion.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

As shown in fig. 1 and fig. 2, the motor output shaft and worm pin pressing device according to the present invention includes a base 1, a fixing position 2 for horizontally placing a motor and a supporting position 3 for supporting the worm from a bottom side are fixed on the base 1, the fixing position 2 includes a positioning block 21 fixed on the base 1, the positioning block 21 includes a positioning slot 22 horizontally penetrating and upwardly opening, an inner shape of the positioning slot 22 is adapted to an outer shape of the motor to be rectangular, the supporting position 3 includes at least a supporting block 4 fixed on the base 1, a V-shaped slot 5 recessed and horizontally penetrating and adapted to be matched with a circumferential surface of the worm is formed at a top of the supporting block 4, the V-shaped slot 5 penetrates and upwardly opening along a horizontal direction, the supporting position 3 further includes a positioning column 10 slidably disposed in the supporting block 4 up and down, the axis of reference column 10 and the coincidence of the axis of pressure round pin thimble 7, the vertical upwards extension of the tank bottom in V type groove 5 is followed to the upper end of reference column 10 to make the worm be located V type groove 5 in the time the upper end of reference column 10 stretch into in the cotter hole 8 rather than forming sliding fit, be equipped with in the supporting shoe 4 with the jacking spring 11 of reference column 10 lower extreme elasticity butt, be close to the position of its lower extreme one side on the reference column 10 and be formed with convex annular arch 23, the upper end of jacking spring 11 offsets with the lower terminal surface of annular arch 23.

As shown in fig. 1 and 2, a press-fitting position 6 for pressing a pin 9 into a pin hole 8 is arranged right above a support position 3, the press-fitting position 6 includes a press-pin thimble 7 which has magnetism and can be lifted up and down relative to a support block 4, the press-pin thimble 7 obtains magnetism through magnetization, the press-pin thimble 7 is fixed at the output end of an external press machine to be lifted up and down, a pin 9 which is concentric with the press-pin hole 8 to be pressed into the press-pin thimble 7 is absorbed at the lower end of the press-pin thimble 7, the pin hole 8 is coincident with the axis of the pin 9 and has the same diameter as the pin 9, the radial direction of the press-pin thimble 7 is coincident with the central line of the V-shaped groove 5, the press-fitting position 6 further includes a positioning sleeve 12 which is slidably sleeved outside the press-pin thimble 7, a guide hole 13 which is communicated up and down is formed in the positioning sleeve 12, the guide hole 13 is cylindrical, the guide hole 13 includes an upper large diameter portion 14 and a lower small diameter portion 15, the lower end of the press-pin thimble 7 extends into the guide hole from the upper opening of the guide hole 13 and forms a sliding fit with the large diameter portion 14, a push-out part 16 which extends downwards into the small-diameter part 15 along the axis of the push-out pin 7 and forms sliding fit with the small-diameter part 15 is formed in the center of the lower end of the push-out pin 7, the push-out part 16 has magnetism, the pin 9 extends into the small-diameter part 15 from the lower end opening of the guide hole 13 to form sliding fit with the small-diameter part and contacts with the lower end of the push-out part 16, a positioning pin 17 penetrates through the push-out pin 7 along the radial direction of the push-out pin, a yielding groove 18 for up-and-down lifting of the positioning pin 17 is formed in the positioning sleeve 12, the yielding groove 18 extends along the vertical direction, two ends of the positioning pin 17 extend into the yielding groove 18 to form sliding fit with the yielding groove, a convex annular check ring 19 is formed on one side of the upper end of the push-out pin 7, a return spring 20 sleeved on the outer side of the push-out pin 7 is arranged between the lower end of the annular check ring 19 and the upper end of the positioning sleeve 12, the return spring 20 makes the positioning pin 17 contact with the upper end of the yielding groove 18 in the initial state, and the lower end surface of the push-out pin 7 contacts with the large-out pin 14, A gap is formed between the step surfaces at the junction of the small diameter portions 15.

In the specific implementation of this embodiment, firstly, the motor is placed in the positioning groove 22 on the positioning block 21 in the horizontal direction, the worm on the motor output shaft is positioned in the V-shaped groove 5, the axis of the motor output shaft and the worm coincides with the center line of the V-shaped groove 5 under the action of the V-shaped groove 5, the pin hole 8 is ensured to be vertical, and the upper end of the positioning column 10 extends into the pin hole 8 from the bottom, then the external press is controlled to work to drive the press pin thimble 7 to move downward relative to the supporting block 4, when the press pin thimble 7 moves downward, the push portion 16 can simultaneously drive the pin 9 to move downward and gradually enter the pin hole 8, when the press pin thimble 7 moves downward, the press pin thimble 7 can simultaneously drive the positioning sleeve 12 to move downward until the lower end of the positioning sleeve 12 abuts against the surface of the worm, then the press pin thimble 7 continues to move downward relative to the positioning sleeve 12 to push the pin 9 into the pin hole 8, meanwhile, the pin entering the pin hole 8 can push the positioning column 10 to slide downwards until the lower end of the pin pressing thimble 7 is contacted with the step surface at the joint of the large-diameter part 14 and the small-diameter part 15, and the pin is just pressed into the specified position in the pin hole 8, so that the assembly of the pin is completed.

The utility model has the advantages of realizing accurate positioning of the pin hole before assembly, enabling the pin to be accurately pressed into the pin hole, effectively reducing assembly errors, improving assembly precision, realizing automatic pressing of the pin, eliminating potential safety hazards, being convenient to operate, having high efficiency and the like.

Claims

1. The utility model provides a motor goes out axle and worm pressure round pin device, the fixed suit of worm is in motor goes out epaxial and inside is formed with along the round pin hole (8) that link up, its characterized in that: including base (1), be fixed with fixed position (2) that the power supply machine level was placed on base (1) and be used for carrying out support position (3) of bearing to the worm from bottom one side, support position (3) include supporting shoe (4) at least, supporting shoe (4) top is formed with recessed and level and link up and be used for with worm circumferential surface complex V type groove (5), be equipped with pressure equipment position (6) that are used for pin (9) pin hole (8) of impressing directly over supporting shoe (3), pressure equipment position (6) are including having magnetism and can be for supporting shoe (4) oscilaltion pressure round pin thimble (7), the lower extreme adsorption of pressure round pin thimble (7) has rather than concentric pin (9) of waiting to impress pin hole (8), the radial and the coincidence of V type groove (5) of pressure round pin thimble (7).

2. The motor output shaft and worm pin pressing device according to claim 1, characterized in that: the support position (3) further comprises a positioning column (10) which can be arranged in the support block (4) in a vertically sliding mode, the axis of the positioning column (10) coincides with the axis of the press pin thimble (7), the upper end of the positioning column (10) vertically and upwards extends out of the bottom of the V-shaped groove (5), so that the upper end of the positioning column (10) extends into the pin hole (8) to form sliding fit with the pin hole when the worm is positioned in the V-shaped groove (5), and a jacking spring (11) which is elastically abutted to the lower end of the positioning column (10) is arranged in the support block (4).

3. The motor output shaft and worm pin pressing device according to claim 2, characterized in that: an outward protruding annular bulge (23) is formed on the positioning column (10) close to one side of the lower end of the positioning column, and the upper end of the jacking spring (11) is abutted against the lower end face of the annular bulge (23).

4. The motor output shaft and worm pin pressing device according to claim 1, 2 or 3, characterized in that: the press mounting position (6) further comprises a positioning sleeve (12) which is sleeved outside the press pin ejector pin (7) in a sliding mode, a guide hole (13) which is through up and down is formed in the positioning sleeve (12), the guide hole (13) comprises a large diameter portion (14) above and a small diameter portion (15) below, the lower end of the press pin ejector pin (7) extends into the press mounting position from an upper end opening of the guide hole (13) and forms sliding fit with the large diameter portion (14), a push-out portion (16) which extends downwards into the small diameter portion (15) along the axis of the press pin ejector pin (7) and forms sliding fit with the press pin ejector pin is formed in the center of the lower end of the press pin ejector pin (7), the push-out portion (16) is magnetic, and the pin (9) extends into the small diameter portion (15) from a lower end opening of the guide hole (13) and forms sliding fit with the press pin and contacts with the lower end of the push-out portion (16).

5. The motor output shaft and worm pin pressing device according to claim 4, characterized in that: the pressure pin thimble (7) radially wears to be equipped with locating pin (17) along it, be formed with in position sleeve (12) and supply yielding groove (18) of locating pin (17) oscilaltion, locating pin (17) both ends stretch into yielding groove (18) in and form sliding fit with it, pressure pin thimble (7) upper end one side is formed with convex annular retaining ring (19), be equipped with between the upper end of annular retaining ring (19) lower extreme and position sleeve (12) suit in the reset spring (20) in pressure pin thimble (7) outside.

6. The motor output shaft and worm pin pressing device according to claim 5, characterized in that: in an initial state, the return spring (20) enables the positioning pin (17) to be in contact with the upper end of the yielding groove (18), and a gap is formed between the lower end face of the pressing pin thimble (7) and the step face at the joint of the large-diameter part (14) and the small-diameter part (15).

7. The motor output shaft and worm pin pressing device according to claim 1, 2 or 3, characterized in that: the fixing position (2) comprises a positioning block (21) fixed on the base (1), the positioning block (21) is provided with a positioning groove (22) which is horizontally communicated and is opened upwards, and the inner shape of the positioning groove (22) is matched with the shape of the motor.