CN221290221U - Device for assembling self-tapping bolt - Google Patents

Abstract

The utility model provides a device of assembly self-tapping bolt, includes the frame, and the frame upper end sets up two parallel cantilever beams, install the cross slide rail on the cantilever beam, X to slider fixed connection Z to elevating system of cross slide rail, Z is to elevating system including fixed bolster, screw mechanism, the motor is connected to screw mechanism's upper end, and the lower extreme passes through the upper end fixed connection of a horizontally rotating joint and a connecting seat, set up a transversely extending Y to the shaft hole on the connecting seat, the one end sliding fit of a spliced pole is in the Y to the shaft hole of connecting seat, and the other end of spliced pole is articulated with the fixing base through the round pin axle that X extends, install down the cylinder on the fixing base, the piston rod of pushing down cylinder is connected with the movable plate of below, an electronic screwing device axle location connection is on the movable plate, electronic screwing device's pivot lower extreme connecting bolt sleeve, the operation handrail is installed to the fixing base both sides, the frame below is provided with the work piece mount.

Description

Device for assembling self-tapping bolt

Technical Field

The utility model relates to the technical field of automobile part assembly, in particular to a device for assembling self-tapping bolts.

Background

In the traditional automobile manufacturing process, the whole frame is composed of dozens of small parts, independent machining and assembly are needed, and the steps of automobile body manufacturing comprise stamping and welding, so that the complexity and cost of the manufacturing process are increased. In recent years, the scheme of manufacturing the automobile body by using an integrated die casting process is gradually rising, compared with the traditional automobile manufacturing process, the production cost is obviously reduced, the production efficiency is improved, and the integrated high-pressure die casting automobile body is usually made of an aluminum alloy material, so that the automobile body is lighter.

Self-tapping bolts are fasteners that can be used to tap a body to be consolidated onto a material to be consolidated by means of their own threads to drill corresponding threads so that they form a strong mechanical threaded connection. However, when the bolts are assembled on the integrally die-cast automobile body part made of the aluminum alloy material, the inner holes of the die castings are smooth holes and have no threads, and the same assembly usually contains various specifications and involves different assembly angles, so that the large reaction moment can not be realized by a common robot; the large-scale special frame fixing tightening shaft is usually aimed at a bolt with uniform specification, and when the self-tapping bolts with multiple specifications and small batches are assembled, the investment cost is high, the manufacturing period is long, and the flexibility degree is low.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and provides a device for assembling a self-tapping bolt, which is characterized in that a cross slide rail is arranged at the upper end of a frame, a Z-direction lifting mechanism is arranged on the cross slide rail, and then an electric tightening device is connected with the Z-direction lifting mechanism, and the lower end of the electric tightening device is connected with a bolt sleeve, so that the electric tightening device can realize Z-direction lifting and can freely move along the X-direction and the Y-direction; the lower end of the Z-direction lifting mechanism is fixedly connected with the upper end of a connecting seat through a horizontally rotating joint, one end of a connecting column is in sliding fit in a Y-direction shaft hole of the connecting seat, the other end of the connecting column is hinged with a fixing seat through a pin shaft extending in the X direction, the fact that the fixing seat drives an electric tightening device and a lower pressing cylinder to rotate along the X axis, the Y axis and the Z axis in the circumferential direction is achieved, namely, a workpiece is tapped into a vertical angle and a non-vertical angle through a bolt is achieved, flexibility is high, adaptability is strong, and flexibility degree is high.

The purpose of the utility model is realized in the following way:

The utility model provides a device of assembly self-tapping bolt, includes the frame, the frame upper end sets up two parallel cantilever beams, install the cross slide rail on the cantilever beam, X of cross slide rail is to a slider fixed connection Z to elevating system, Z is to elevating system including fixed bolster, screw mechanism, the motor is connected to screw mechanism's upper end, and the lower extreme passes through the joint of a horizontal rotation and the upper end fixed connection of a connecting seat, set up a transversely extending Y to the shaft hole on the connecting seat, the one end sliding fit of a spliced pole is in the Y to the shaft hole of connecting seat, and the other end of spliced pole is articulated with the fixing base through the round pin axle that X extends, install down the air cylinder on the fixing base, the piston rod of air cylinder is connected with the movable plate of below down, an electronic screwing device axle fixed connection is on the movable plate, electronic screwing device's pivot lower extreme connecting bolt sleeve, the operation handrail is installed to the fixing base both sides, the frame below is provided with the work piece mount.

Further, the cross slide rail comprises two X-direction slide rails and two Y-direction slide rails, the Y-direction slide rails are respectively arranged at the upper ends of the cantilever beams, the X-direction slide rails are in sliding fit with the Y-direction slide rails through Y-direction slide blocks, and the Z-direction lifting mechanism is arranged between the two X-direction slide blocks.

Further, each X-direction sliding rail and each Y-direction sliding rail are respectively provided with a sliding rail lock, and each sliding rail lock is fixedly connected with each sliding block.

Further, the connecting seat is a Z-shaped connecting seat.

Further, the fixing base comprises a vertically arranged backboard, a horizontally arranged fixed board fixedly connected with the backboard, the pin shaft is hinged with the backboard, the lower pressing cylinder is installed on the fixed board, a round hole is formed in the fixed board, and the electric tightening device penetrates through the round hole shaft to be in positioning connection with the movable board.

Further, a horizontal square guide plate is arranged on the electric tightening device, and the guide plate is in sliding fit with the backboard.

Further, fixed support legs and idler wheels are arranged at the lower end of the workpiece fixing frame, handles are arranged on the side edges of the workpiece fixing frame, a plurality of positioning pins and a plurality of clamps are arranged at the upper end of the workpiece fixing frame, and the positioning pins and the clamps are driven by a clamping cylinder.

Further, electronic screwing device is fixed with a connecting axle, the bolt sleeve cover is at the end of connecting axle, locks with locking device, the lower extreme of bolt sleeve is provided with the inner chamber that is used for fixing the bolt, the bottom of inner chamber is provided with magnet, the bolt passes through magnet connection and fixes.

Further, a controller of the electric tightening device is arranged on the frame.

Further, a jacking bolt is arranged on the connecting seat and is perpendicular to the connecting column, and the jacking bolt is used for locking the connecting column.

By adopting the scheme, the electric tightening device can freely move along the X direction, the Y direction and the Z direction and can also be rotationally adjusted along the X axis, the Y axis and the Z axis, so that the bolts can be tapped from vertical angles and also can be tapped into workpieces from non-vertical angles, and the device has high flexibility, strong adaptability, high flexibility degree and strong rigidity; and the die casting inner hole is unthreaded, can select electronic screwing device, the controller of corresponding specification according to screwing torque, also can select the bolt sleeve of corresponding specification according to different bolts, more be fit for many specifications, small batch sample trial production, economic nature is high, and the device popularization is good.

The utility model is further described below with reference to the drawings and detailed description.

Drawings

Fig. 1 is an isometric view of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a schematic view of fig. 2 in a direction.

Fig. 4 is an enlarged view at B of fig. 3.

Fig. 5 is a schematic structural view of the Z-direction lifting mechanism and the tightening mechanism of the present utility model.

Fig. 6 is a schematic structural view of the workpiece holder of the present utility model.

Fig. 7 is a schematic structural view of a novel bolt sleeve according to the present utility model.

Fig. 8 is a schematic bottom view of a new bolt sleeve of one gauge of the present utility model.

Fig. 9 is a cross-sectional view taken along A-A of fig. 8.

Reference numerals illustrate: the device comprises a frame 1, a cantilever beam 2, an X-direction sliding block 3, a Z-direction lifting mechanism 4, a fixed support 5, a screw mechanism 6, a motor 7, a joint 8, a connecting seat 9, a connecting column 10, a pin shaft 11, a fixed seat 12, a pressing cylinder 13, a movable plate 14, an electric tightening device 15, a bolt sleeve 16, an operation handrail 17, a workpiece fixing frame 18, an X-direction sliding rail 19, a Y-direction sliding rail 20, a Y-direction sliding block 21, a sliding rail lock 22, a backboard 23, a fixed plate 24, a guide plate 25, a fixed support 26, a roller 27, a handle 28, a positioning pin 29, a clamp 30, a clamping cylinder 31, a pressing bolt 32, a bolt 33, an inner cavity 34, a controller 35 and an electronic angle meter 36.

Description of the embodiments

Referring to fig. 1 to 9, a device for assembling a tapping bolt comprises a frame 1, two parallel cantilever beams 2 are arranged at the upper end of the frame 1, the two cantilever beams 2 extend along the Y direction, a cross sliding rail is installed on the cantilever beams 2, an X-direction sliding block 3 of the cross sliding rail is fixedly connected with a Z-direction lifting mechanism 4, further, the cross sliding rail comprises two X-direction sliding rails 19 and two Y-direction sliding rails 20, the Y-direction sliding rails 20 are respectively installed at the upper ends of the cantilever beams 2, the X-direction sliding rails 19 are in sliding fit with the Y-direction sliding rails 20 through Y-direction sliding blocks 21, and the Z-direction lifting mechanism 4 is installed between the two X-direction sliding blocks 3. Further, the X-direction slide rails 19 and Y-direction slide rails 20 are provided with slide rail locks 22, each slide rail lock 22 is fixedly connected with each slide block, and the slide rail locks 22 are used for preventing the dislocation and skew of the bolts 33 caused by swing after reaching a specified position. In this embodiment, the slide lock 22 is a pneumatic slide lock. Further, a controller 35 of the electric tightening device 15 is mounted on the frame 1.

The Z-direction lifting mechanism 4 comprises a fixed support 5 and a screw mechanism 6, the fixed support 5 is fixedly connected with the X-direction sliding block 3, the upper end of the screw mechanism 6 is connected with a motor 7, in the embodiment, the motor 7 is an asynchronous variable frequency motor, the lower end of the screw mechanism 6 is fixedly connected with the upper end of a connecting seat 9 through a horizontally rotating joint 8, the connecting seat 9 is a Z-type connecting seat, the lower end of the connecting seat 9 is provided with a Y-direction shaft hole which transversely extends, one end of a connecting column 10 is in sliding fit in the Y-direction shaft hole of the connecting seat 9 through a bearing, the other end of the connecting column 10 is hinged with a fixed seat 12 through a pin shaft 11 which extends in the X direction, the connecting column 10 rotates in the Y-direction shaft hole along the Y-direction circumferential direction, and the fixed seat 12 rotates along the X-direction extending pin shaft 11 circumferential direction; further, an extension section is arranged at the lower end of the connecting seat 9 positioned at the connecting column 10, a jacking bolt 32 is mounted on the extension section, the jacking bolt 32 is vertically arranged with the connecting column 10, and the jacking bolt 32 is used for locking the connecting column 10 to prevent the change of the angle after rotation; further, an electronic angle meter 36 is mounted on the upper end of the connecting column 10 for observing the angle.

The fixed seat 12 is provided with a lower air cylinder 13, a piston rod of the lower air cylinder 13 is connected with a moving plate 14 below, an electric tightening device 15 is connected to the moving plate 14 in a shaft positioning manner, the fixed seat 12 further comprises a vertically arranged back plate 23 and a horizontally arranged fixed plate 24 fixedly connected with the back plate 23, the pin shaft 11 is hinged with the back plate 23, the lower air cylinder 13 is arranged on the fixed plate 24, a round hole is formed in the fixed plate 24, the electric tightening device 15 penetrates through the round hole to be connected to the moving plate 14 in a shaft positioning manner, and when the lower air cylinder 13 drives the moving plate 14 to move downwards, the electric tightening device 15 moves downwards together, so that the driving force is always ensured when the lower air cylinder 13 attacks. Further, a horizontal square guide plate 25 is mounted on the electric tightening device 15, the guide plate 25 is in sliding fit with the back plate 23, the back plate 23 is vertically arranged, and the guide plate 25 plays a guiding role to enable the electric tightening device 15 to stably move along the Z direction; the left and right sides of the fixed plate 24 are also provided with vertical plates, and two operation handrails 17 are respectively and fixedly connected with the vertical plates.

The lower end of the rotating shaft of the electric tightening device 15 is connected with a bolt sleeve 16, further, the output end of the electric tightening device 15 is fixed with a connecting shaft, the bolt sleeve 16 is sleeved at the tail end of the connecting shaft, the connecting shaft is a square connecting shaft and is locked by a locking device, in the embodiment, the outer wall of the bolt sleeve 16 is provided with an annular groove, a radially extending through hole arranged in the annular groove is communicated with the through hole of the square connecting shaft, the locking device is a pin, and the bolt sleeve 16 can be locked with the square connecting shaft by inserting the pin into the through hole; the lower extreme of bolt sleeve 16 is provided with the inner chamber 34 that is used for fixing bolt 33, the shape of inner chamber 34 matches with the shape of bolt 33 head end, according to different bolts 33, designs the shape of different inner chambers 34, the bottom of inner chamber 34 is provided with magnet, bolt 33 passes through magnet connection and fixes.

The lower part of the frame 1 is provided with a workpiece fixing frame 18, the lower end of the workpiece fixing frame 18 is provided with a fixing support leg 26 and a roller 27, the side edge of the workpiece fixing frame 18 is provided with a handle 28, the upper end of the workpiece fixing frame 18 is provided with a plurality of positioning pins 29 and a plurality of clamps 30, the positioning pins 29 and the clamps 30 are used for locking and positioning workpieces to be processed, the positioning pins 29 and the clamps 30 are driven by a clamping cylinder 31, and the positioning pins 29 and the clamps 30 can be adjusted and replaced according to different workpieces; the workpiece holder 18 is moved by a forklift, or a roller 27, the roller 27 being a universal wheel.

When the device for assembling the self-tapping bolt is used for vertical angle tapping, firstly, a workpiece to be machined is placed on a workpiece fixing frame 18, locking and fixing are carried out by a locating pin 29 and a clamp 30, then an operator holds an operation handrail 17 to move on an XY plane, drives a bolt 33 to move to be positioned on the same axis with a workpiece unthreaded hole, locks a slide rail lock 22 after fine adjustment, sets parameters of a controller 35, a motor 7 operates to drive a fixing seat 12 to move downwards to be above the unthreaded hole of the workpiece along the Z axis, a piston rod of a pressing cylinder 13 pushes a lower movable plate 14 to move downwards, and meanwhile, the movable plate 14 drives an electric tightening device 15 to tap the bolt; if the angle is not vertical, an operator firstly holds the operation armrest 17 to rotate and adjust along the X axis, the Y axis and the Z axis according to the attack angle, simultaneously observes the angle displayed by the electronic angle meter 36, and after adjusting the angle, the operator tightens the tightening bolt 32 to lock the connecting column 10 and locks the slide rail lock 22, so that the bolt 33 can be attacked.

According to the device for assembling the self-tapping bolt, the electric tightening device 15 can freely move along the X direction, the Y direction and the Z direction, and can also be rotationally adjusted along the X axis, the Y axis and the Z axis, so that the bolt 33 can be tapped from a vertical angle and a non-vertical angle into a workpiece, and the device has the advantages of high flexibility, strong adaptability, high flexibility degree and strong rigidity; the inner hole of the die casting is a unthreaded hole, an electric tightening device 15 and a controller 35 with corresponding specifications can be selected according to tightening torque, and a bolt sleeve 16 with corresponding specifications can be selected according to different bolts 33, so that the die casting is more suitable for trial production of sample pieces with multiple specifications and small batches, and has high economy and good device popularization.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the utility model, and those skilled in the art will appreciate that the modifications made to the utility model fall within the scope of the utility model without departing from the spirit of the utility model.

Claims (10)

1. The utility model provides a device of assembly self-tapping bolt, includes frame (1), its characterized in that: the machine frame is characterized in that two parallel cantilever beams (2) are arranged at the upper end of the machine frame (1), a cross sliding rail is arranged on the cantilever beams (2), an X-direction sliding block (3) of the cross sliding rail is fixedly connected with a Z-direction lifting mechanism (4), the Z-direction lifting mechanism (4) comprises a fixed support (5) and a screw mechanism (6), a motor (7) is connected with the upper end of the screw mechanism (6), the lower end of the screw mechanism is fixedly connected with the upper end of a connecting seat (9) through a joint (8) which horizontally rotates, a Y-direction shaft hole which transversely extends is arranged on the connecting seat (9), one end of a connecting column (10) is slidably matched in the Y-direction shaft hole of the connecting seat (9), the other end of the connecting column (10) is hinged with a fixed seat (12) through a pin shaft (11) which extends in the X-direction, a lower pressing cylinder (13) is arranged on the fixed seat (12), a piston rod of the lower pressing cylinder (13) is connected with a moving plate (14) below, an electric tightening device (15) is axially positioned and connected onto the moving plate (14), two side bolts (18) are arranged on the machine frame, and two side bolts (17) are arranged on the machine frame.

2. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: the cross slide rail comprises two X-direction slide rails (19) and two Y-direction slide rails (20), the Y-direction slide rails (20) are respectively arranged at the upper ends of the cantilever beams (2), the X-direction slide rails (19) are in sliding fit with the Y-direction slide rails (20) through Y-direction slide blocks (21), and the Z-direction lifting mechanism (4) is arranged between the two X-direction slide blocks (3).

3. The apparatus for assembling a self-tapping bolt as set forth in claim 2, wherein: and each X-direction sliding rail (19) and each Y-direction sliding rail (20) are provided with sliding rail locks (22), and each sliding rail lock (22) is fixedly connected with each sliding block respectively.

4. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: the connecting seat (9) is a Z-shaped connecting seat.

5. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: the fixing seat (12) comprises a back plate (23) which is vertically arranged, a fixed plate (24) which is horizontally arranged and fixedly connected with the back plate (23), the pin shaft (11) is hinged with the back plate (23), the lower pressing cylinder (13) is arranged on the fixed plate (24), a round hole is formed in the fixed plate (24), and the electric tightening device (15) penetrates through the round hole to be connected onto the movable plate (14) in a shaft positioning mode.

6. The self-tapping bolt assembly set forth in claim 5, wherein: the electric tightening device (15) is provided with a horizontal square guide plate (25), and the guide plate (25) is in sliding fit with the back plate (23).

7. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: the lower extreme of work piece mount (18) is installed fixed stabilizer blade (26), gyro wheel (27), and handle (28) are installed to the side, the upper end of work piece mount (18) is provided with a plurality of locating pins (29) and a plurality of anchor clamps (30), locating pins (29) and anchor clamps (30) are driven by clamp cylinder (31).

8. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: the electric tightening device is characterized in that the electric tightening device (15) is fixed with a connecting shaft, the bolt sleeve (16) is sleeved at the tail end of the connecting shaft and locked by the locking device, an inner cavity (34) for fixing a bolt (33) is arranged at the lower end of the bolt sleeve (16), a magnet is arranged at the bottom of the inner cavity (34), and the bolt (33) is fixedly connected through the magnet.

9. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: a controller (35) of the electric tightening device (15) is arranged on the frame (1).

10. The apparatus for assembling a self-tapping bolt according to claim 1, wherein: the connecting seat (9) is provided with a jacking bolt (32), the jacking bolt (32) is perpendicular to the connecting column (10), and the jacking bolt (32) is used for locking the connecting column (10).