Automatic press-fitting and screw locking device for steering column

Abstract

The utility model provides an automatic press-fitting and screw locking device for a steering column, and belongs to the technical field of steering column assembling equipment. The device comprises a lifting back plate, the front side of the lifting back plate is sequentially provided with a screw motor supporting plate and a clamping mouth bit lifting sliding plate in a sliding mode through longitudinal sliding rails, and the screw motor supporting plate and the clamping mouth bit lifting sliding plate are driven by a lead screw to ascend and descend. The front side of the clamping mouth bit lifting sliding plate synchronously drives bit sleeves in the two universal transmission bit mechanisms to rotate in different directions and adjust the distance through a screw pitch moving mechanism. The device has the advantages of being high in automation degree, easy to adjust variables, capable of improving installation efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of steering column assembly equipment, in particular to an automatic press-fit screw locking device for a steering column. Background Art

[0002] At present, front forks are more common in motorcycles, electric vehicles or bicycles, and fixed shock absorbers are usually set at both ends of the front fork to form a steering column, which is mainly used to provide buffering and steering when contacting ground obstacles.

[0003] like Figure 1 As shown, during the installation of the steering column, one end of the shock absorber 7 needs to be bolted to the end of the front fork 8. Usually, both ends of the front fork are provided with placement holes with notches. One end of the shock absorber 7 is inserted into the placement hole, and the locking block 80 is locked by the bolt to close the notch, thus locking the end of the shock absorber and completing the installation of the shock absorber.

[0004] However, since the locking block is not placed horizontally, the traditional press-fit screw device cannot be installed reasonably and quickly, and most of the existing steering column assembly is produced and assembled manually. Since the bolt is not installed horizontally or vertically when pressed down, it is usually installed at an angle, which makes installation difficult. The installation position of the flat bolt varies depending on the type of steering column, making debugging difficult. Summary of the Invention

[0005] The purpose of the utility model is to provide an automatic press-fit screw locking device for a steering column, which automatically and efficiently installs flat fork screws, accurately controls variables, greatly reduces manpower expenditure, and improves production efficiency.

[0006] The purpose of this utility model is achieved in this way:

[0007] A device for automatically pressing and locking screws on a steering column comprises a lifting back plate. The front side of the lifting back plate is sequentially slidably provided with a screw motor support plate and a nozzle and bit lifting slide plate, both of which are driven to rise and fall by a screw rod, via longitudinal slide rails. Two sets of universal transmission bit mechanisms are provided on the screw motor support plate. The front side of the nozzle and bit lifting slide plate synchronously drives the bit sleeves in the two universal transmission bit mechanisms to rotate in different directions and adjust the spacing through a pitch moving mechanism.

[0008] The cam is provided with an adjusting screw which is fixed to the front end of the lifting slide of the nozzle head, and an adjusting shaft which passes through the two adjusting grooves is provided on the front end of the lifting slide of the nozzle head.

[0009] The utility model is further configured as follows: the universal transmission bit mechanism includes a universal motor fixed on a screw motor support plate, two sets of universal joints are fixed on the output shaft of the universal motor, a telescopic rod with a reset spring is provided between the two universal joints, and the top of the bit sleeve is fixed to the universal joint at the bottom through a transmission shaft.

[0010] The utility model is further configured such that an upper cylinder fixed plate is slidably provided on the longitudinal slide rail on the front side of the lifting back plate, and the top of the lifting back plate drives the upper cylinder fixed plate to rise and fall by means of a first screw motor driving a screw, and a longitudinal cylinder is fixed on the screw motor support plate, and the piston rod end of the longitudinal cylinder is fixed to the bottom of the upper cylinder fixed plate.

[0011] The utility model is further configured such that a lower cylinder fixed plate is slidably provided on the longitudinal slide rail on the front side of the lifting back plate and is located between the screw motor support plate and the nozzle and bit lifting slide plate. The top of the lifting back plate drives the lifting of the lower cylinder fixed plate by means of a second screw motor driving a screw rod. A standard cylinder is fixed to the bottom of the nozzle and bit lifting slide plate, and the end of the piston rod of the standard cylinder is fixed to the bottom of the lower cylinder fixed plate.

[0012] The utility model is further configured such that a pre-installed frame is provided on the rear side of the lifting back plate through sliding movement of a motor.

[0013] The present invention is further configured such that a first drag chain is provided between the pre-installed frame and the lifting back plate, and a second drag chain is provided between the lifting back plate and the screw motor support plate.

[0014] The present invention is further configured such that a feed tube for filling screws is provided on one side of the bit sleeve.

[0015] The utility model is further configured such that the bottom of the longitudinal mounting plate is fixedly connected to the transverse slide plate through a transverse plate, the front side of the longitudinal mounting plate is provided with a support rod slider that slides up and down, and the end of the angle adjustment support rod is fixedly connected to the support rod slider, the support rod slider is adapted to be equipped with a screw rod for adjusting the lifting, and a screw rod driven wheel is fixed on the top of the screw rod, and an angle adjustment motor fixed on the nozzle bit lifting slide is provided on the rear side of the longitudinal mounting plate, and the top of the angle adjustment motor drives the screw rod driven wheel to rotate by means of a pulley.

[0016] The present invention is further configured such that the angle adjustment support rod is arched.

[0017] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0018] 1. The automatic screw pressing device provided by the utility model utilizes a pitch moving mechanism to realize the directional rotation and spacing adjustment of the bit sleeve in the universal transmission bit mechanism, thereby realizing efficient installation of inclined direction column bolt holes; at the same time, the screw motor support plate and the clamping bit lifting slide on the lifting back plate are used to control the lifting and lowering of the universal transmission bit mechanism.

[0019] 2. The utility model further provides a universal transmission bit mechanism including a telescopic rod, which can fine-tune the height of the bit sleeve, meeting the operational requirement of using a spring to reset the bit sleeve after pressing it down.

[0020] 3. The utility model further provides an upper cylinder fixed plate and a lower cylinder fixed plate to fine-tune the height of the screw motor support plate and the clamping bit lifting slide, thereby meeting the working requirements of the bit sleeve.

[0021] 4. The pre-assembled frame further provided by the present invention can help the entire device to be assembled and disassembled for use; the two sets of drag chains provided can facilitate the storage of cables; and the feed pipe can facilitate the automatic provision of bolts.

[0022] 5. In the process of making the two batch head sleeves rotate in different directions, the utility model adopts the angle adjustment motor to transmit the data, which is easy to control the variables and is not prone to deviation.

[0023] 6. The present invention further provides an angle adjustment support rod with an arched structure, which will not affect the normal use of the horizontal slide plate during the angle adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the steering column installation position;

[0025] Figure 2 It is a structural diagram of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the pitch moving mechanism of the utility model Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the structure of the pitch moving mechanism of the utility model Figure 2 ;

[0028] Figure 5 It is a structural diagram of the lifting back plate;

[0029] Reference numerals:

[0030] 1-lifting back plate; 10-upper cylinder fixed plate; 11-first screw motor; 12-lower cylinder fixed plate; 13-second screw motor;

[0031] 2-screw motor support plate; 20-longitudinal cylinder;

[0032] 3-Breaker head lifting slide; 30-Standard cylinder; 31-Angle adjustment motor;

[0033] 4-Universal transmission bit mechanism; 40-Bit sleeve; 41-Rotating block; 42-Universal motor; 43-Universal joint; 44-Telescopic rod; 45-Feed pipe;

[0034] 5-pitch moving mechanism; 50-longitudinal mounting plate; 500-support rod slider; 501-screw rod; 502-screw driven pulley; 51-angle adjustment support rod; 510-adjustment shaft; 52-transverse slide plate; 53-diameter reducing slide plate; 530-synchronous belt pressure block; 54-synchronous belt motor; 540-driving pulley; 541-driven pulley; 55-angle adjustment plate; 550-adjustment chute;

[0035] 6-pre-installed rack; 60-first drag chain; 61-second drag chain;

[0036] 7-Shock absorber; 8-Front fork; 80-Locking block. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 2 — Figure 5 :

[0038] A device for automatically pressing and locking screws on a steering column comprises a lifting back plate 1. A screw motor support plate 2 and a nozzle and bit lifting slide plate 3, both of which are driven to rise and fall by a screw rod, are slidably mounted on the front side of the lifting back plate 1 via longitudinal slide rails. Two sets of universal transmission bit mechanisms 4 are arranged on the screw motor support plate 2. The front side of the nozzle and bit lifting slide plate 3 synchronously drives the bit sleeves 40 in the two universal transmission bit mechanisms 4 to rotate in different directions and adjust the spacing via a pitch moving mechanism 5.

[0039] The pitch moving mechanism 5 includes a longitudinal mounting plate 50 fixed to the front side of the nozzle head lifting slide 3, and an angle adjustment support rod 51 is provided on the front side of the longitudinal mounting plate 50 for moving up and down by a longitudinal screw rod. A transverse slide plate 52 is fixed to the front end of the nozzle head lifting slide 3, and two diameter-reducing slides 53 for transverse sliding are provided on the front side of the transverse slide plate 52. A driving wheel 540 driven by a synchronous belt motor 54 is provided on one side of the transverse slide plate 52, and a driven wheel 541 rotated synchronously with the synchronous belt is provided on the other side. The rear end of the diameter-reducing slide 53 is provided with a synchronous belt pressure block 530 for fixing to the synchronous belt, and when the synchronous belt motor 54 drives When the driving wheel 540 rotates, the two reducing slides 53 move closer or further away, and a rotating block 41 is fixed on the two bit sleeves 40. The two rotating blocks 41 are respectively rotatably connected to the front ends of the two reducing slides 53. An angle adjustment plate 55 fixed to the rear side of the rotating block 41 is provided between the rotating block 41 and the reducing slide 53. An adjusting slot 550 is provided on the angle adjustment plate 55. The front end of the angle adjustment support rod 51 is provided with an adjusting shaft 510 that passes through the two adjusting slots 550. When the angle adjustment support rod 51 moves up and down, the adjusting shaft 510 drives the angle adjustment plate 55 and the rotating block 41 to rotate synchronously, and the two bit sleeves 40 rotate synchronously in opposite directions.

[0040] During the implementation process, the lifting back plate 1 remains stationary, and the bit sleeve in the universal transmission bit mechanism 4 is moved up and down by the up and down moving jaw lifting slide 3. The bolt installation function is provided by the bit sleeve 40.

[0041] During adjustment, the synchronous belt motor 54 in the pitch movement mechanism 5 drives the movement of the two variable-diameter slides 53. Specifically, one variable-diameter slide 53 is placed above the endless synchronous belt and secured by a synchronous belt pressure block, while the other variable-diameter slide 53 is placed below the endless synchronous belt and also secured by a synchronous belt pressure block. When the driving pulley 540 is driven, the upper and lower synchronous belts follow opposite transverse paths, causing the two variable-diameter slides 53 to move closer or further apart. The changing position of the variable-diameter slide 53 affects the distance between the two rotating blocks, thereby adapting the installation position of screws of different widths.

[0042] The change of the tilt angle is achieved by controlling the up and down position of the angle adjustment support rod 51, driving the up and down swing of the angle adjustment plate 55, thereby realizing the rotation of the rotating block 41, thereby rotating the two bit sleeves 40 synchronously, and rotating in different directions to achieve different angle adjustments to adapt to the change of the tilt angle.

[0043] Preferably, the universal transmission bit mechanism 4 includes a universal motor 42 fixed on the screw motor support plate 2, two sets of universal joints 43 are fixed on the output shaft of the universal motor 42, a telescopic rod 44 with a return spring is provided between the two universal joints 43, and the top of the bit sleeve 40 is fixed to the universal joint 43 at the bottom through a transmission shaft.

[0044] In the above structure, when the screwdriver bit sleeve passes through the installation position, it needs to move up and down and press down, and the stroke during the bolt pressing process will not be too long. The clamping bit lifting slide is used to move up and down, and the telescopic rod 44 can be extended and retracted up and down to achieve movement within the stroke range, and the reset spring is used for automatic rebound, which is convenient for the next installation.

[0045] Preferably, an upper cylinder fixed plate 10 is slidably provided on the longitudinal slide rail on the front side of the lifting back plate 1, and the top of the lifting back plate 1 drives the upper cylinder fixed plate 10 to rise and fall by driving the screw through the first screw motor 11. A longitudinal cylinder 20 is fixed on the screw motor support plate 2, and the piston rod end of the longitudinal cylinder 20 is fixed to the bottom of the upper cylinder fixed plate 10.

[0046] Preferably, a lower cylinder fixed plate 12 is slidably provided on the longitudinal slide rail on the front side of the lifting back plate 1 and is located between the screw motor support plate 2 and the nozzle and bit lifting slide plate 3. The top of the lifting back plate 1 drives the lower cylinder fixed plate 12 to rise and fall by driving the screw by the second screw motor 13. A standard cylinder 30 is fixed to the bottom of the nozzle and bit lifting slide plate 3, and the end of the piston rod of the standard cylinder 30 is fixed to the bottom of the lower cylinder fixed plate 12.

[0047] In the above structure, the first screw motor 11 controls the longitudinal distance of the upper cylinder fixed plate 10, and the second screw motor 13 controls the longitudinal distance of the lower cylinder fixed plate 12. The longitudinal distance controlled by the first screw motor 11 and the second screw motor 13 is to adapt to the corresponding length of the universal transmission bit mechanism 4. The actual fine-tuning is performed by using the longitudinal cylinder and the standard cylinder 30 to make subtle adjustments.

[0048] Preferably, a pre-installed frame 6 is provided on the rear side of the lifting backboard 1 through a motor slide.

[0049] During the assembly process, the pre-assembly frame 6 can slide the lifting backboard 1 up and down, and the pre-assembly frame can be disassembled and installed at the same time, so as to adapt to the assembly line work.

[0050] Preferably, a first drag chain 60 is provided between the pre-installed frame 6 and the lifting back plate 1, and a second drag chain 61 is provided between the lifting back plate 1 and the screw motor support plate 2. This facilitates the placement of circuits and gas lines.

[0051] Preferably, a feed pipe 45 for filling screws is provided on one side of the bit sleeve 40. The feed pipe 45 is used for continuous feeding of bolts, greatly improving production efficiency.

[0052] Preferably, the bottom of the longitudinal mounting plate 50 is fixedly connected to the transverse slide plate 52 through a transverse plate, and a support rod slider 500 that slides up and down is provided on the front side of the longitudinal mounting plate 50, and the end of the angle adjustment support rod 51 is fixedly connected to the support rod slider 500, and the support rod slider 500 is adapted to be equipped with a screw rod 501 for adjusting the lifting, and a screw rod driven wheel 502 is fixed on the top of the screw rod 501, and an angle adjustment motor 31 fixed on the nozzle bit lifting slide 3 is provided on the rear side of the longitudinal mounting plate 50, and the top of the angle adjustment motor 31 drives the screw rod driven wheel 502 to rotate by means of a pulley.

[0053] In the above structure, the angle is adjusted by rotating the angle adjustment motor 31. When rotating, the pulley drives the driven wheel screw on one side to rotate, causing the support rod slider 500 to move up and down. Furthermore, the up and down movement of the angle adjustment support rod 51 can be quantitatively adjusted by the angle adjustment motor 31, which has a wider range of application.

[0054] Preferably, the angle adjustment rod 51 is arched, so that the angle adjustment rod 51 does not affect the normal operation of the horizontal slide plate 52 during the up and down movement.

[0055] Working principle:

[0056] The utility model provides an automatic press-fit screw locking device for the operation of installing bolts in steering columns, which is more demanding and cannot be automated. The device uses the screw motor support plate on the lifting back plate and the clamping bit lifting slide to control the upper and lower working position requirements of the bit sleeve. At the same time, the pitch moving mechanism is used to control the spacing between the bolts in different steering columns and the adjustment of the inclination angle. It has a high degree of automation, is easy to control various variables, and greatly improves the installation efficiency of the steering column bolts.

[0057] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for automatically pressing and locking screws on a steering column, characterized in that: The utility model comprises a lifting back plate (1), the front side of the lifting back plate (1) is provided with a screw motor support plate (2) and a clamping bit lifting slide plate (3) which are both driven to lift by a screw rod in sequence through a longitudinal slide rail, two sets of universal transmission bit mechanisms (4) are provided on the screw motor support plate (2), and the front side of the clamping bit lifting slide plate (3) synchronously drives the bit sleeves (40) in the two universal transmission bit mechanisms (4) to rotate in different directions and adjust the spacing through a pitch moving mechanism (5). The pitch moving mechanism (5) comprises a longitudinal mounting plate (50) fixed to the front side of the nozzle head lifting slide (3), an angle adjustment support rod (51) is provided on the front side of the longitudinal mounting plate (50) for moving up and down through a longitudinal screw rod, a transverse slide plate (52) is fixed to the front end of the nozzle head lifting slide (3), two diameter-reducing slide plates (53) for transverse sliding are provided on the front side of the transverse slide plate (52), a driving wheel (540) driven by a synchronous belt motor (54) is provided on one side of the transverse slide plate (52), and a driven wheel (541) rotated synchronously by the synchronous belt is provided on the other side, a synchronous belt pressing block (530) for fixing on the synchronous belt is provided at the rear end of the diameter-reducing slide plate (53), and when the synchronous belt motor (54) drives the driving wheel ( When the angle adjustment rod (540) rotates, the two reducing slides (53) move closer or farther away, and a rotating block (41) is fixed on each of the two bit sleeves (40). The two rotating blocks (41) are respectively connected to the front ends of the two reducing slides (53) for rotation. An angle adjustment plate (55) fixed to the rear side of the rotating block (41) is provided between the rotating block (41) and the reducing slide (53). An adjusting slot (550) is provided on the angle adjustment plate (55). An adjusting shaft (510) passing through the two adjusting slots (550) is provided at the front end of the angle adjustment support rod (51). When the angle adjustment support rod (51) moves up and down, the adjusting shaft (510) drives the angle adjustment plate (55) and the rotating block (41) to rotate synchronously, and at the same time, the two bit sleeves (40) rotate synchronously in opposite directions.

2. The automatic press-fit screw locking device for a steering column according to claim 1, characterized in that: The universal transmission screwdriver bit mechanism (4) comprises a universal motor (42) fixed on a screw motor support plate (2); two sets of universal joints (43) are fixed on the output shaft of the universal motor (42); a telescopic rod (44) with a return spring is provided between the two universal joints (43); the top of the screwdriver bit sleeve (40) is fixed to the universal joint (43) at the bottom through a transmission shaft.

3. The automatic press-fit screw locking device for a steering column according to claim 2, characterized in that: An upper cylinder fixed plate (10) is slidably provided on the longitudinal slide rail on the front side of the lifting back plate (1); the top of the lifting back plate (1) drives the upper cylinder fixed plate (10) to rise and fall by means of a first screw motor (11) driving a screw; a longitudinal cylinder (20) is fixed on the screw motor support plate (2); and the piston rod end of the longitudinal cylinder (20) is fixed to the bottom of the upper cylinder fixed plate (10).

4. The automatic press-fit screw locking device for a steering column according to claim 2 or 3, characterized in that: A lower cylinder fixed plate (12) is slidably provided on the longitudinal slide rail on the front side of the lifting back plate (1) and is located between the screw motor support plate (2) and the nozzle and bit lifting slide plate (3). The top of the lifting back plate (1) drives the lower cylinder fixed plate (12) to rise and fall by means of a second screw motor (13) driving a screw rod. A standard cylinder (30) is fixed to the bottom of the nozzle and bit lifting slide plate (3). The end of the piston rod of the standard cylinder (30) is fixed to the bottom of the lower cylinder fixed plate (12).

5. The automatic press-fit screw locking device for a steering column according to claim 4, characterized in that: A pre-installed frame (6) is provided on the rear side of the lifting back plate (1) through motor sliding.

6. The automatic press-fit screw locking device for a steering column according to claim 5, characterized in that: A first drag chain (60) is provided between the pre-installed frame (6) and the lifting back plate (1), and a second drag chain (61) is provided between the lifting back plate (1) and the screw motor support plate (2).

7. The automatic press-fit screw locking device for a steering column according to claim 1, characterized in that: A feeding pipe (45) for filling screws is provided on one side of the bit sleeve (40).

8. The automatic press-fit screw locking device for a steering column according to claim 1, characterized in that: The bottom of the longitudinal mounting plate (50) is fixedly connected to the transverse slide plate (52) through a transverse plate, the front side of the longitudinal mounting plate (50) is provided with a support rod slider (500) that slides up and down, and the end of the angle adjustment support rod (51) is fixedly connected to the support rod slider (500), the support rod slider (500) is adapted to be equipped with a screw rod (501) for adjusting the lifting, and a screw rod driven wheel (502) is fixed on the top of the screw rod (501), and the rear side of the longitudinal mounting plate (50) is provided with an angle adjustment motor (31) fixed on the nozzle bit lifting slide plate (3), and the top of the angle adjustment motor (31) drives the screw rod driven wheel (502) to rotate by means of a pulley.

9. The automatic press-fit screw locking device for a steering column according to claim 8, characterized in that: The angle adjustment support rod (51) is arched.

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