CN103170834B - A kind of bolt and nut automatic assembling - Google Patents

Abstract

The invention relates to an automatic assembly machine for bolts and nuts. Control system; wherein, the bolt turning slideway sends the oriented bolts to the bolt conveying device, and the bolt conveying device sends them to the bolt clamping device one by one, and the bolts are positioned and clamped in the bolt clamping device; the nut feeder feeds the nuts After orientation, it is sent to the nut pushing device through the slideway, and the nut pushing device releases them one by one and pushes them into the nut screwing working head device. The nut screwing working head device makes the nut rotate and pushes it to the bolt that is positioned and clamped. The bolts are screwed together to complete the automatic assembly. The automatic assembly machine for bolts and nuts of the present invention has high reliability, low cost, and simple structure, realizes automatic assembly of bolts and nuts, and overcomes the problems of low production efficiency, high labor intensity, incomplete assembly, and bumps on the surface of manual assembly.

Description

Automatic assembly machine for bolts and nuts

technical field

The invention relates to a special equipment for assembling bolts and nuts, in particular to an automatic bolt and nut assembly machine for iron towers and guardrails.

Background technique

Bolts and nuts are commonly used parts of power towers and highway guardrails, and the two need to be screwed into one as their delivery status.

At present, the screwing and assembly of bolts and nuts is mainly done by hand or simple tools (such as electric wrench). Due to the manual assembly, the production efficiency is low, the labor intensity is high, and there are often quality problems such as improper assembly and surface bumps. With the rapid development of the economy, the demand is increasing, and higher requirements are put forward for the production efficiency, quality and cost of bolt and nut assembly, but the existing technology cannot effectively solve these problems.

Contents of the invention

The purpose of the present invention is to provide an automatic assembly machine for bolts and nuts with high reliability, low cost and simple structure, which can realize automatic assembly of bolts and nuts, and overcome the low production efficiency, high labor intensity, incomplete assembly and surface defects of existing manual assembly. Bump and other issues.

Technical scheme of the present invention is as follows:

An automatic assembly machine for bolts and nuts, comprising: a bolt turning slide, a bolt conveying device, a bolt clamping device, a nut feeder, a nut pushing device, a nut screwing working head device, a frame and an electrical control system; wherein, the bolt The steering slideway sends the oriented bolts to the bolt conveying device, and the bolts are sent to the bolt clamping device one by one by the bolt conveying device, and the bolts are positioned and clamped in the bolt clamping device; the nut feeder sends the nuts to the nut after orientation The device is released one by one by the nut pushing device and pushed into the nut screwing working head device. The nut screwing working head device rotates the nut and pushes it to the bolt that is positioned and clamped. The nut and the bolt are screwed together to complete the automatic assembly. .

Description of drawings

Fig. 1 is the perspective view of the bolt and nut automatic assembly machine of the present invention;

Fig. 2 is a perspective view of the bolt conveying device of the present invention;

Fig. 3 is a perspective view of the bolt clamping device of the present invention;

Fig. 4 is a perspective view of the adjusting device of the present invention;

Figure 5 is a perspective view of the nut driving device of the present invention;

Fig. 6 is a perspective view of the nut screwing working head device of the present invention;

The parts represented by each label in the accompanying drawings are as follows:

1. Bolt turning slideway 2. Bolt conveying device 3. Bolt clamping device 4. Length adjustment device 5. Nut feeder 6. Nut pushing device 7. Nut screwing head device 8. Frame 9. Electric control system 21. Conveying cylinder 22, material partition plate 23, large end material receiving claw 24, small end material receiving claw 25, axial positioning plate 26, spring 31, clamping cylinder 32, clamping seat 33, anti-rotation head 41, box Body 42, lead screw 43, nut 44, feed rod 45, slide seat 46, hand wheel 61, propulsion cylinder 62, propulsion plate 64, spacer cylinder 65, spacer 71, drive motor 72, connection seat 73, cover Barrel wrench 74, nut storage tank 741, permanent magnet 75, linear movement mechanism 751, cylinder 752, cylinder seat 753, guide rod 754, sliding seat 755, support seat

detailed description

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

The present invention includes a bolt turning slideway 1, a bolt conveying device 2, a bolt clamping device 3, an adjusting device 4, a nut feeder 5, a nut pushing device 6, a nut screwing head 7, a frame 8 and an electrical control system 9 Wherein, the bolt turning slideway 1 sends the bolts oriented by the bolt feeder (not shown in the figure) to the bolt conveying device 2, and is sent to the bolt clamping device 3 one by one by the bolt conveying device 2, and the bolts The device 3 is positioned and clamped; the nut feeder 5 orients the nuts and sends them to the nut propulsion device 6 through the slideway. The nut propulsion device 6 is equipped with a spacer 65 to release the nuts one by one, and the released nuts fall into the propulsion plate 62 In the neutral gear formed with the nut storage tank 74, the propulsion plate 62 pushes the nut into the nut screwing head device 7, and the nut screwing head device 7 rotates the nut and pushes it to the bolt that is positioned and clamped, and the nut and the bolt Screw together for automatic assembly.

The bolt turning slideway 1 is installed at the outlet of the bolt feeder (not shown in the figure), and sends the oriented bolts to the bolt conveying device 2 . The bolt feeder is used for bolt orientation, which can be selected from funnel type, chain type or vibrating plate structure, and adopts two sets of symmetrical arrangements.

The bolt conveying device 2 is composed of a conveying cylinder 21, a material separating plate 22, a large-end material receiving claw 23, a small-end material receiving claw 24, an axial positioning plate 25, a spring 26, and the like. The conveying cylinder 21 is fixed on the frame 8, and the large end material receiving claw 23 and the small end material receiving claw 24 are installed on the piston rod, and the piston rod pushes the large end material receiving claw 23 and the small end material receiving claw 24 to reciprocate, The large-end material receiving claw 23 and the small-end material receiving claw 24 can be adjusted to adapt to bolts of different lengths; the axial positioning plate 25 is installed in the chute of the large-end material receiving claw 23 to prevent the axial movement of the bolt, relying on the spring 26 Reset; the material partition plate 22 is installed on the large end material receiving claw 23 and the small end material receiving claw 24 to release the bolts one by one; the bolts sent out by the bolt turning slideway 1 are sent to the bolt clamping device 3 by the bolt conveying device 2 one by one;

Bolt clamping device 3 is made up of clamping cylinder 31, clamping seat 32, anti-rotation head 33, and the bolt location clamping that bolt conveying device 2 sends. The clamping seat 32 is fixed to the adjustment device 4 with a symmetrical inclination left and right, the clamping cylinder 31 is installed on the clamping seat 32, and the anti-rotation head is installed on the piston rod end of the clamping cylinder 31, so that the clamping is safer and more reliable;

The adjustment device 4 is set to adapt to bolts of different lengths, and is composed of a box body 41, a lead screw 42, a screw nut 43, a light rod 44, a sliding seat 45 and a hand wheel 46. The box body 41 is fixed on the frame 8, and the screw nut 43 Installed on the sliding seat 45, one end of the lead screw 42 is equipped with a hand wheel 46, and turning the hand wheel 46 makes the sliding seat 45 move forward and backward through the screw mechanism of the lead screw 42 nut 43, and at the same time drives the bolt clamping device 3 to move back and forth, adjusting the relative The spacing of the nut storage slots 74 is adapted to different length bolts;

The nut feeder 5 adopts a sliding hopper and is fixed on the frame 8. Its characteristic is that the oriented nuts are sent out by two feeders, and the nuts are respectively supplied to two stations;

The nut propulsion device 6 is composed of a propulsion cylinder 61, a propulsion plate 62, a material spacer cylinder 64, a material spacer 65, etc. The material spacer cylinder 64 is installed at the end of the feedway of the nut feeder 5 to release the nuts one by one, and the released nuts fall into the In the neutral gear formed by the push plate 62 and the nut storage tank 74, the push plate 62 is installed on the piston rod of the push cylinder 61, and the nut is pushed into the draw-in groove 731 provided by the socket wrench 73 by the push plate 62;

Nut screwing working head device 7 is made up of drive motor 71, connecting seat 72, socket wrench 73, nut storage tank 74, linear movement mechanism 75 etc.; Slide seat 754, bearing seat 755 form. The cylinder base 752, the guide rod 753, and the support base 755 are rigidly connected together and fixed on the frame 8, and the cylinder 751 is installed on the cylinder base 752, and its piston rod is connected with the slide base 754 to push the slide base 754 to reciprocate axially on the guide rod 753. . Connecting seat 72 and sliding seat 754 are solid as a whole, and connecting seat 72 one end installs drive motor 71 and the other end is provided with sleeve wrench 73, and sleeve wrench 73 is provided with draw-in groove 731 and is used for blocking nut, and connecting seat 72 also has Nut storage tank 74 is housed, and nut storage tank 74 is provided with permanent magnet 741 and is used for the righting of nut, and drive motor 71 drives socket wrench 73 and the nut in the socket wrench 73 to rotate together, and linear movement mechanism 75 pushes nut. The bolts clamped by the bolt clamping device 3 are screwed together, and then each mechanism returns to its initial position in turn, and the finished product falls into the finished product material box, and the automatic assembly is completed.

The electrical control system 9 completes the control work of each moving part to realize full automation.

The present invention adopts pneumatic as the main power to complete the automatic assembly. At the same time, hydraulic and cam control mechanism can also be realized.

The above descriptions are only preferred implementation cases of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (8)

1. An automatic assembly machine for bolts and nuts, comprising: bolt steering slides, bolt conveying device, bolt clamping device, adjustment device, nut feeder, nut pushing device, nut screwing head device, frame and electrical control system; wherein, the bolt steering slideway sends the oriented bolts to the bolt conveying device, and the bolts are sent to the bolt clamping device one by one by the bolt conveying device, and the bolts are positioned and clamped in the bolt clamping device; the adjusting device is adapted to different length bolts And set; the nut feeder sends the nuts to the nut propulsion device after orientation, and the nut propulsion device releases them one by one and pushes them into the nut screwing working head device, and the nut screwing working head device rotates the nut and pushes it to the positioned clip Tight bolts, nuts and bolts are screwed together to complete the automatic assembly; the adjustment device includes a box, a screw, a screw nut, a light rod, a slide seat and a hand wheel, the box is fixed on the frame, and the screw nut is installed on the slide On the seat, one end of the screw is equipped with a hand wheel, turning the hand wheel through the screw nut screw mechanism to move the slide seat back and forth, and at the same time drive the bolt clamping device to move back and forth, and adjust the nut screwing head device with a nut storage tank The distance between bolts is suitable for bolts of different lengths; the nut propulsion device includes a propulsion cylinder, a propulsion plate, a spacer cylinder, and a spacer. The spacer cylinder installed at the end of the nut feeder discharges the nuts one by one, and the released nuts fall into the propulsion In the neutral gear formed by the plate and the nut storage tank, the propulsion plate installed on the propulsion cylinder pushes the nut into the sleeve wrench slot of the nut screwing working head device; the nut screwing working head device includes a driving motor, a connecting seat, Socket wrench, nut storage tank, and linear movement mechanism. The nut storage tank is equipped with a permanent magnet for the righting of the nut. The drive motor drives the socket wrench and the nut in the socket wrench to rotate together. The linear movement mechanism pushes the nut The bolts clamped by the bolt clamping device are screwed together, each mechanism returns to its initial position in turn, and finally the finished product falls into the finished product material box, and the automatic assembly is completed. 2. The bolt and nut automatic assembly machine according to claim 1, wherein the bolt steering slideway is installed at the outlet of the bolt feeder. 3. The automatic assembly machine for bolts and nuts according to claim 2, wherein the bolt feeder is used for bolt orientation, and adopts funnel type, chain type or vibrating plate structure. 4. The automatic assembly machine for bolts and nuts according to claim 1, wherein the bolt conveying device comprises a conveying cylinder, a material spacer, a large end material receiving claw, a small end material receiving claw, an axial positioning plate and a spring. 5. The bolt and nut automatic assembly machine according to claim 1, the bolt clamping device includes a clamping cylinder, a clamping seat, and an anti-rotation head, which are fixed on the adjustment device to position and clamp the bolts sent by the bolt conveying device. 6. The bolt and nut automatic assembly machine according to claim 1, the nut loader adopts a sliding hopper and is fixed on the frame, and the oriented nuts are sent out from the material channel, and the nuts are supplied to the work station. 7. The bolt and nut automatic assembly machine according to claim 1, the electrical control system completes the control work of each moving part and realizes full automation. 8. An automatic assembly system for bolts and nuts, which is assembled by one or more sets of automatic assembly machines for bolts and nuts according to claim 1.