CN217143022U

CN217143022U - Automatic bolt screwing device

Info

Publication number: CN217143022U
Application number: CN202221140560.3U
Authority: CN
Inventors: 项大清
Original assignee: Taizhou Sincere Diamond Machinery Co ltd
Current assignee: Taizhou Sincere Diamond Machinery Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-09
Anticipated expiration: 2032-05-12

Abstract

The utility model provides an automatic twist bolt device belongs to automation equipment technical field. The bolt assembling device solves the problems that the existing bolt assembling device for the binding post cannot keep the same specification and the bolt is easy to fall off. The automatic bolt screwing device comprises a rack, wherein a workpiece positioning clamp for positioning a workpiece and an automatic screwing mechanism with a screwing piece are arranged on the rack, the automatic screwing mechanism enables the screwing piece to be connected with a bolt and can drive the bolt to rotate, the automatic bolt screwing device further comprises an extrusion piece arranged on the rack, and when the front end part of a screw rod in the bolt passes through a bolt hole of the workpiece, the screw teeth on the front end part of the screw rod can contact with the extrusion piece and enable the screw teeth to deform. The automatic bolt screwing device not only adopts an automatic mode to assemble the bolts, but also can keep the uniform specification of the bolts when the bolts are assembled on a workpiece; the bolts are not easy to fall off in the production and transportation processes, so that the safety is improved, unnecessary economic loss can be avoided, and the defective rate and the rejection rate of products are greatly reduced.

Description

Automatic bolt screwing device

Technical Field

The utility model belongs to the technical field of automation equipment, a twist bolt device is related to, especially an automatic twist bolt device.

Background

The terminal is an accessory product for realizing electrical connection, along with industrial automation degree is higher and industrial control requires stricter and stricter, accurate, the quantity of terminal rises gradually, its application range is more and more, and the kind is also more and more moreover, wherein, uses the most extensive PCB board terminal, five metals terminal, nut terminal, spring terminal etc. including.

The binding post usually needs the assembly bolt to use, and at present, the bolt assembly mode of binding post is mostly manual assembly, promptly is the mode of manual work, puts into positioning fixture with binding post and bolt to the bolt is screwed up by hand. The mode has certain potential safety hazard, is low in efficiency, is easy to cause the condition that the quality of the binding post is unstable, and is not suitable for modern industries with higher and higher automation degree.

Chinese patent (application number: 201420785917.2) discloses an automatic terminal screw assembling machine, which comprises a frame, a terminal vibration disc, a screw vibration disc, a terminal dividing disc, a screw dividing disc and a driving mechanism arranged below the frame and used for driving the discs to rotate, wherein the rotation generated by a driving motor is converted into the up-and-down motion of a connecting rod, so that the up-and-down motion of the upper connecting rod is driven, and the effect of driving each electric screwdriver to move up and down is further achieved.

Although the automatic assembling machine for the binding post screws adopts an automatic mechanical mode to replace a manual operation mode, the assembling efficiency of the binding posts is improved, the screwing distance of the bolt on each binding post cannot be controlled, the subsequent required detection steps are increased, and the same specification cannot be maintained during batch production and use; in the production and transportation process, the bolts are easy to fall off, so that certain potential safety hazards and economic losses are caused.

Disclosure of Invention

The utility model provides an automatic twist bolt device, the utility model discloses the technical problem that solves is the same specification when how to keep terminal assembly bolt, and makes the bolt be difficult for droing.

The to-be-solved technical problem of the utility model can be realized through the following technical scheme: an automatic bolt screwing device comprises a rack, wherein a workpiece positioning clamp for positioning a workpiece and an automatic screwing mechanism with a screwing piece are arranged on the rack, the automatic screwing mechanism is positioned above the workpiece positioning clamp, and when a bolt is arranged at the port of a bolt hole of the workpiece, the automatic screwing mechanism can enable the screwing piece to be connected with the bolt and can drive the bolt to rotate; the automatic bolt screwing device further comprises an extrusion piece arranged on the rack, when the bolt, the front end portion of the screw penetrates through a bolt hole of a workpiece, threads on the front end portion of the screw can contact with the extrusion piece and deform, the threads on the surface of the deformed position of the screw are ground flat, the end portion of the screw cannot be matched with the screw hole, when the bolt rotates outwards, the front end portion of the screw can be clamped with the bolt hole in the row of the workpiece, and the bolt is not prone to falling off.

Preferably, the extrusion part is provided with a pressed area for the contact of the threads in the bolt and a limiting part for the contact of the front end face of the screw rod in the bolt, the pressed area is positioned above the limiting part, when the bolt is positioned in the workpiece positioning clamp, the screw rod abuts against the limiting part, and the front end part to be deformed on the screw rod is positioned in the pressed area.

As optimization, the quantity of extruded article is two, all has extrusion half hole on every extruded article, and the bead in extrusion half hole is the pressurized area, and the terminal surface of two extruded articles contacts and makes two extrusion half holes form the extrusion hole, and when the front end of bolt was located the extrusion hole, the terminal surface of two extruded articles contacted and made the thread deformation on the screw rod front end.

As the optimization, the extruded article is including receiving pressure pole and gag lever post, has seted up the mounting hole in receiving the pressure pole, and the gag lever post is worn to establish in the mounting hole, receives to be fixed connection between pole and the gag lever post, receives the operating condition horizontal migration that pole and gag lever post can be different according to the device.

Preferably, the extrusion part is provided with an extrusion hole, and the edge of the extrusion hole is a pressed area.

Preferably, the extrusion is provided with a cutting edge perpendicular to the axis of the bolt hole, and the area where the cutting edge is located is a pressed area.

Preferably, the extrusion part is connected with the rack through a guide driving structure, and the guide driving structure can enable the extrusion part to move along the direction vertical to the axis of the bolt hole; or the extrusion piece comprises a compression rod and a limiting rod, and the compression rod and the limiting rod are connected with the rack through guide driving structures.

Preferably, the extrusion part is fixedly connected with the frame.

As optimization, the workpiece is a wiring terminal, a threading hole is formed in the wiring terminal, and when the wiring terminal is positioned on the workpiece positioning clamp, the extrusion piece can be embedded into the threading hole; or the workpiece positioning clamp can limit the workpiece to move along the axial lead direction of the bolt hole, the limiting part of the extrusion piece can be positioned in the threading hole, and the bolt can abut against the limiting part when descending.

Preferably, the automatic screwing mechanism comprises a motor, and a main shaft of the motor is in transmission connection with the screwing piece; the automatic bolt screwing device also comprises a control circuit and a monitoring mechanism for monitoring the torque of the screwing piece, and the monitoring mechanism and the motor are electrically connected with the control circuit; when the torque of the screwing piece is increased to a set threshold value from small, the control circuit controls the motor to stop rotating or controls the motor to rotate reversely. The same torque threshold value can be set through the control circuit, so that the number of turns of the control motor rotating every time is kept the same, the height of the bolts on the workpiece can be kept uniform, and the same specification of the workpiece during bolt assembly can be kept.

Compared with the prior art, the automatic bolt screwing device not only adopts an automatic mode to assemble the bolts, but also can keep the uniform specification of the bolts during assembly on a workpiece, and can also keep the same specification during batch production and use; this automatic twist bolt device makes the bolt unable to be twisted out completely with the thread deformation on the bolt front end portion, and the bolt all is difficult for droing in the in-process of production, transportation, has not only improved the security, can also avoid unnecessary economic loss, greatly reduced the defective percentage of product, rejection rate.

Drawings

Fig. 1 is a schematic structural view of an automatic bolt tightening device.

Fig. 2 is a partial structural schematic diagram I of the automatic bolt screwing device.

Fig. 3 is a partially enlarged view of a portion F1 in fig. 2.

Fig. 4 is a partial structural schematic view ii of the automatic bolt screwing device.

Fig. 5 is a partially enlarged view of a portion F2 in fig. 4.

Fig. 6 is a partial schematic structural view iii of the automatic bolt screwing device.

Fig. 7 is a cross-sectional view a-a of fig. 6.

Fig. 8 is a cross-sectional view a-a of fig. 6 in state two.

Fig. 9 is a schematic view of the structure of the workpiece.

The labels in the figure are: 1. a frame; 2. a workpiece positioning fixture; 3. a screwing member; 4. an extrusion; 5. extruding the hole; 6. a pressure receiving rod; 7. a limiting rod; 8. a motor; 9. an automatic bolt feeding mechanism; 10. a bolt inlet; 11. an automatic workpiece conveying mechanism; 12. a binding post; 13. a bolt; 14. a vibrating pan; 15. bolt holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The first embodiment is as follows: as shown in fig. 1 to 9, an automatic bolt screwing device includes a frame 1, a workpiece positioning fixture 2 for positioning a workpiece and an automatic screwing mechanism having a screwing member 3 are mounted on the frame 1, the automatic screwing mechanism is located above the workpiece positioning fixture 2, and when a bolt 13 is disposed at a port 15 of a bolt hole of the workpiece, the automatic screwing mechanism can connect the screwing member 3 with the bolt 13 and can drive the bolt 13 to rotate.

The automatic screwing mechanism comprises a motor 8, and a main shaft of the motor 8 is in transmission connection with the screwing piece 3; the automatic bolt screwing device also comprises a control circuit and a monitoring mechanism for monitoring the torque of the screwing piece 3, and the monitoring mechanism and the motor 8 are electrically connected with the control circuit; when the torque of the screwing piece 3 is increased from small to a set threshold value, the control circuit controls the motor 8 to stop rotating or controls the motor 8 to rotate reversely.

One end of the screwing piece 3 is connected with an automatic bolt feeding mechanism 9, the automatic bolt feeding mechanism 9 can automatically fill a bolt 13 into a screwing port located at the bottom end of the automatic bolt feeding mechanism 9, the automatic bolt feeding mechanism 9 is fixedly connected with the screwing piece 3, a bolt feeding port 10 is formed in the automatic bolt feeding mechanism 9, the bolt 13 placed into the bolt feeding port 10 can keep a screw rod in a downward state to enter the screwing port, and a nut can abut against the upper end face of the screwing port.

The automatic bolt screwing device also comprises an extrusion part 4 arranged on the frame 1, and after the front end part of a screw rod in the bolt 13 passes through a bolt hole 15 of a workpiece, threads on the front end part of the screw rod can contact with the extrusion part 4 and deform the threads.

The extrusion part 4 is provided with a pressed area for the contact of the screw teeth in the bolt 13 and a limiting part for the contact of the front end surface of the screw in the bolt 13, and the pressed area is positioned above the limiting part; the quantity of extruded piece 4 is two, all has extrusion half-hole on every extruded piece 4, and the bead in extrusion half-hole is the pressurized area, and the terminal surface of two extruded pieces 4 contacts and makes two extrusion half-holes form extrusion hole 5.

Extruded article 4 is including receiving pole 6 and gag lever post 7, has seted up the mounting hole in receiving pole 6, and gag lever post 7 wears to establish in the mounting hole, receives to be fixed connection between pole 6 and the gag lever post 7, receives the operating condition horizontal migration that pole 6 and gag lever post 7 can be different according to the device, and receives pole 6 for dismantling.

The extrusion part 4 is connected with the rack 1 through a guide driving structure, and the guide driving structure can enable the extrusion part 4 to move along the direction vertical to the axis of the bolt hole 15; the motor 8 and the screwing piece 3 are connected with the frame 1 through a guide driving structure, and the guide driving structure can enable the motor 8 and the screwing piece 3 to move along the direction parallel to the axial lead of the bolt hole 15.

The work piece is terminal 12, has the through wires hole in the terminal 12, and when terminal 12 was located work piece positioning fixture 2, extrusion article 4 can imbed in the through wires hole, and extrusion article 4 spacing portion can be located in the through wires hole, and bolt 13 can support when descending and lean on in spacing portion.

The automatic bolt screwing device further comprises an automatic workpiece conveying mechanism 11 arranged on the rack 1, the automatic workpiece conveying mechanism 11 is connected with the rack 1 through a guide driving structure, and the guide driving structure can drive the automatic workpiece conveying mechanism 11 to form an automatic conveying channel and convey workpieces to the workpiece positioning clamp 2.

The automatic bolting device also comprises a vibrating disk 14, and the vibrating disk 14 is communicated with the open end of the automatic conveying channel.

In the actual use process, the vibrating disc 14 sends the wiring terminal 12 into the automatic workpiece conveying mechanism 11, and the guiding driving structure can drive the automatic workpiece conveying mechanism 11 to form an automatic conveying channel and convey the workpiece to the workpiece positioning clamp 2; the extrusion piece 4 is embedded into the threading hole of the binding post 12, and the limiting part of the extrusion piece 4 is positioned in the threading hole; then the bolt 13 is put into the bolt opening 10, the screwing piece 3 is controlled by the control circuit to move downwards and abut against the nut of the bolt 13, then the motor 8 is controlled by the control circuit to move downwards, the bolt 13 is positioned at the port of the bolt hole 15 of the binding post 12, then the motor 8 is started by the control circuit, the spindle of the motor 8 starts to rotate, and the bolt 13 is screwed into the bolt hole 15 of the binding post 12.

When the front end of the screw abuts against the limiting part, the torque of the screwing piece 3 is increased and exceeds a set threshold value of the monitoring mechanism, the monitoring mechanism receives information and transmits the information to the control circuit, and the control circuit controls the motor 8 to stop rotating; the guide driving structure enables the extrusion pieces 4 to move along the direction vertical to the axial lead of the bolt hole 15 until the end surfaces of the two extrusion pieces 4 are contacted, and the two extrusion half holes form an extrusion hole 5 and enable the screw teeth on the front end part of the screw to deform; and finally, the guide driving structure enables the pressed rod 6 and the limiting rod 7 to reset, and the binding post 12 assembled with the bolt 13 falls into the storage bin.

Example two: the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the substantially same parts are not described redundantly, but only different parts are described, and the different parts are: the extrusion piece 4 is provided with an extrusion hole 5, and the edge opening of the extrusion hole 5 is a pressed area; the extrusion part 4 comprises a compression rod 6 and a limiting rod 7, and the compression rod 6 and the limiting rod 7 are connected with the rack 1 through a guide driving structure.

The extrusion hole 5 is positioned on the compression rod 6, and the guide driving structure can enable the compression rod 6 to move along the direction vertical to the axial lead of the bolt hole 15; the guide driving structure can enable the limiting rod 7 to move along the direction parallel to the axial lead of the bolt hole 15.

Example three: the structure and principle of this embodiment are substantially the same as those of the first embodiment or the second embodiment, and the portions that are substantially the same are not described redundantly, but only different portions are described, and the differences are: the extrusion 4 is provided with a cutting edge which is perpendicular to the axial line of the bolt hole 15, and the area where the cutting edge is positioned is a pressed area.

Example four: the structure and principle of this embodiment are substantially the same as those of the first embodiment or the second embodiment, and the portions that are substantially the same are not described redundantly, but only different portions are described, and the differences are: the extrusion part 4 is fixedly connected with the frame 1.

Claims

1. An automatic bolt screwing device comprises a rack (1), wherein a workpiece positioning clamp (2) for positioning a workpiece and an automatic screwing mechanism with a screwing piece (3) are arranged on the rack (1), the automatic screwing mechanism is positioned above the workpiece positioning clamp (2), and when a bolt (13) is arranged at the port of a bolt hole (15) of the workpiece, the automatic screwing mechanism can enable the screwing piece (3) to be connected with the bolt (13) and can drive the bolt (13) to rotate; the automatic bolt screwing device is characterized by further comprising an extrusion part (4) installed on the rack (1), and when the front end part of a screw rod in the bolt (13) penetrates through a bolt hole (15) of a workpiece, threads on the front end part of the screw rod can be in contact with the extrusion part (4) and deform the threads.

2. The automatic bolt tightening apparatus according to claim 1, wherein the pressing member (4) has a pressed area for contact with the thread of the bolt (13) and a stopper portion for contact with the front end surface of the screw of the bolt (13), the pressed area being located above the stopper portion.

3. The automatic bolt screwing device according to claim 2, characterized in that the number of the extrusion parts (4) is two, each extrusion part (4) is provided with an extrusion half hole, the edge of the extrusion half hole is a pressed area, and the end surfaces of the two extrusion parts (4) are contacted to form the extrusion hole (5) of the two extrusion half holes.

4. The automatic bolt screwing device according to claim 1, wherein the extrusion member (4) comprises a compression rod (6) and a limiting rod (7), a mounting hole is formed in the compression rod (6), the limiting rod (7) penetrates through the mounting hole, and the compression rod (6) and the limiting rod (7) are fixedly connected.

5. The automatic screw device according to claim 2, characterized in that the extrusion member (4) has an extrusion hole (5), and the edge of the extrusion hole (5) is a pressed area.

6. The automatic screw device according to claim 2, characterized in that the extrusion member (4) has a cutting edge perpendicular to the axis of the bolt hole (15), and the area where the cutting edge is located is a pressed area.

7. The automatic bolt screwing device according to any one of claims 1 to 6, characterized in that the extrusion member (4) is connected with the frame (1) through a guide driving structure, and the guide driving structure can enable the extrusion member (4) to move along the direction vertical to the axis of the bolt hole (15); or the extrusion part (4) comprises a compression rod (6) and a limiting rod (7), and the compression rod (6) and the limiting rod (7) are connected with the rack (1) through a guide driving structure.

8. The automatic screw device according to any one of claims 1 to 6, characterized in that the extrusion (4) is fixedly connected with the frame (1).

9. The automatic bolt screwing device according to any one of claims 1 to 6, characterized in that the workpiece is a terminal post (12), a threading hole is formed in the terminal post (12), and the extrusion member (4) can be inserted into the threading hole when the terminal post (12) is positioned on the workpiece positioning jig (2); or the workpiece positioning clamp (2) can limit the workpiece to move along the axis direction of the bolt hole (15).

10. The automatic screwing device according to any one of claims 1 to 6, characterized in that the automatic screwing mechanism comprises a motor (8), a main shaft of the motor (8) is in transmission connection with the screwing piece (3); the automatic bolt screwing device also comprises a control circuit and a monitoring mechanism for monitoring the torque of the screwing piece (3), and the monitoring mechanism and the motor (8) are electrically connected with the control circuit; when the torque of the screwing piece (3) is increased to a set threshold value from small, the control circuit controls the motor (8) to stop rotating or controls the motor (8) to rotate reversely.