CN211966580U - Electric oil pump bolt fastening device - Google Patents

Abstract

The utility model provides an electronic oil pump bolt-up device, including controller, pressure sensor, base plate, stand, support, first cylinder and box spanner, on the stand vertical fixation was in the base plate, the both sides of stand were located through the support branch to first cylinder and box spanner, box spanner's the coaxial fluted disc that is equipped with of surface, the fluted disc passes through the chain with the piston of first cylinder and is connected, pressure sensor links to each other with first cylinder, pressure sensor links to each other with the controller. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, can be accurate twist the bolt to specific moment of torsion, degree of automation is high.

Description

Electric oil pump bolt fastening device

Technical Field

The utility model relates to a fastening tool technical field, specific be applied to bolt-up device on electric oil pump.

Background

To improve engine detection, maintenance and access to service, flathead trucks often employ a forward-tipping cab to expose the engine. When the cab needs to be turned over, the whole cab is turned over forwards through the turning mechanism in the forward-turning type cab, and when the cab does not need to be turned over, the cab is locked through the locking mechanism.

The power source of tilting mechanism mainly is provided by hydraulic mode, along with the improvement that automatic performance required, receives more and more favour with the mode of electric oil pump to hydraulic means fuel feeding. The electric oil pump cylinder body is generally connected with connecting positions such as an oil inlet and an oil outlet, and the electric oil pump cylinder body is connected with the electric oil pump cylinder body through bolts. To ensure the stability of the connection, the torque control of the bolts is very strict and requires the operation by means of specific tools.

In the prior art, the bolt is usually screwed by a pneumatic wrench in advance, and then a manual torque wrench is used for controlling the torque, so that the operation is time-consuming and labor-consuming. Because the bolt size of the electric oil pump cylinder body is smaller, the operation can be completed by adopting a portable fastening tool.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, accurate bolt-up device of torque control especially are fit for the bolt-up on the electric oil pump.

The technical scheme of the utility model is that:

electronic oil pump bolt fastener, including controller, pressure sensor, base plate, stand, support, first cylinder and box spanner, on the stand vertical fixation was in the base plate, the both sides of stand were located through the support branch to first cylinder and box spanner, box spanner's the coaxial fluted disc that is equipped with of surface, the fluted disc passes through the chain with the piston of first cylinder and is connected, pressure sensor links to each other with first cylinder, pressure sensor links to each other with the controller.

The final purpose of the utility model is to tighten the bolt on the workpiece to a specific torque.

The work piece is before getting into electric oil pump bolt fastening device, and the bolt on the work piece is screwed up in advance earlier, and the moment of torsion of screwing up the bolt in advance is less than specific moment of torsion, the utility model discloses use first cylinder as the power supply, carry out the standard to the bolt on the work piece that gets into in the electric oil pump bolt fastening device and screw up, the standard is screwed up and is reached specific moment of torsion for the tightening between bolt and work piece. The chain is matched with the fluted disc, and the fluted disc is driven through the chain to first cylinder, and the fluted disc drives box spanner and carries out standard tightening to the bolt. The torque control of the bolt is realized through the pressure sensor, along with the tightening of the bolt, the larger the required torque is, the larger the pressure provided by the first air cylinder is, the pressure in the first air cylinder is identified through the pressure sensor, when the pressure in the first air cylinder reaches a specific value, namely the bolt reaches the specific torque, the controller controls the first air cylinder to stop working, and the standard tightening is completed.

The gear disc type socket wrench is characterized in that a motor is arranged between the support and the socket wrench, a shell of the motor is fixedly connected with the support, a power output end of the motor is connected with the socket wrench, and an overrunning clutch is arranged between the gear disc and the socket wrench.

Through setting up the motor, the link of screwing up in advance between bolt and the work piece also can be accomplished in electronic oil pump bolt fastener. An overrunning clutch is arranged between the fluted disc and the socket wrench, and the fluted disc does not rotate when the motor drives the socket wrench to be screwed down in advance. When the motor reaches a locked-rotor state, the torque provided by the socket wrench is smaller than a specific torque.

The stand is the second cylinder, and the piston and the base plate of second cylinder are fixed and are connected, and the cylinder body of second cylinder links to each other with the support.

The upright column is arranged to be the cylinder, so that the support can move in the vertical direction, the distance between the socket wrench and the base plate is adjusted, and the purpose is to facilitate the workpiece to pass in and out the electric oil pump bolt fastening device.

A bearing is arranged between the cylinder body of the second cylinder and the bracket;

at least 2 workpiece fixing devices are arranged on the base plate and matched with the socket wrench;

the workpiece fixing devices are distributed in a fan shape by taking the upright columns as circle centers.

The workpiece is fixed on the base plate through the workpiece fixing devices, the plurality of workpiece fixing devices allow the socket wrench to be operated in line, and when the workpiece in one workpiece fixing device is screwed down, the workpiece can be loaded or unloaded on other workpiece fixing devices, so that the working flow is optimized, and the production efficiency is improved. The socket spanner switches between different work piece fixing device, is realized through the bearing of support and stand spare, only need rotate the support can.

One end of the chain is connected with the piston of the first cylinder, and the other end of the chain is provided with a balance weight. The other end of the chain is connected with the balance weight through a steel wire, and a pulley can be arranged on the support, so that the chain is ensured to be tightened, and the plane where the chain is located is the same as the plane where the fluted disc is located.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the bolt can be accurately screwed to a specific torque, and the automation degree is high.

Drawings

FIG. 1 is a schematic view of the structure principle of the present invention

FIG. 2 is a schematic view of the structure principle of the present invention

In the figure:

1. base plate 2, upright column 3 and bracket

4. First cylinder 5, socket wrench 6, pressure sensor

7. Fluted disc 8, motor 9, work piece fixing device

10. Counterweight 11 and chain

Detailed Description

As shown in fig. 1 and 2, the present invention

Electronic oil pump bolt fastener, including controller, pressure sensor 6, base plate 1, stand 2, support 3, first cylinder 4 and box spanner 5, 2 vertical fixation in base plate 1 on the stand, the both sides of stand 2 are located through support 3 branch to first cylinder 4 and box spanner 5, the coaxial fluted disc 7 that is equipped with of surface of box spanner 5, fluted disc 7 passes through chain 11 with the piston of first cylinder 4 and is connected, pressure sensor 6 links to each other with first cylinder 4, pressure sensor 6 links to each other with the controller.

Be equipped with motor 8 between support 3 and box spanner 5, motor 8's casing links to each other with support 3 is fixed, and motor 8's power take off end links to each other with box spanner 5, be equipped with freewheel clutch between fluted disc 7 and the box spanner 5.

The upright post 2 is a second cylinder, a piston of the second cylinder is fixedly connected with the base plate 1, and a cylinder body of the second cylinder is connected with the support 3.

And a bearing is arranged between the cylinder body of the second cylinder and the bracket 3.

The base plate 1 is provided with 3 workpiece fixing devices 9, and the workpiece fixing devices 9 are matched with the socket wrench 5.

The workpiece fixing devices 9 are distributed in a fan shape by taking the upright post 2 as the center of a circle.

One end of the chain 11 is connected with the piston of the first cylinder 4, and the other end of the chain 11 is provided with a counterweight 10.

The working process of the example is as follows:

preliminarily fixing the bolt in a screw hole of a workpiece, fixing the workpiece on the workpiece fixing device 9, rotating the support 3 to enable the position of the socket wrench 5 to be matched with the position of the bolt, controlling the second cylinder to press downwards to enable the socket wrench 5 to be in contact with the bolt, starting the motor 8, and screwing the bolt in advance. And then starting the first cylinder 4, driving the chain 11 by the first cylinder 4, driving the fluted disc 7 to rotate by the chain 11, driving the socket wrench 5 by the fluted disc 7 to screw the bolt to a specific torque, and controlling the first cylinder to stop working by the controller when the pressure sensor 6 identifies that the pressure value in the first cylinder 4 reaches a specific standard. In the above process, the loading operation can be performed in the other workpiece fixing devices 9, and the socket wrench 5 is engaged with the bolts in the other workpiece fixing devices 9 by the ascending of the second cylinder and the rotation of the bracket 3.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (7)

1. Electronic oil pump bolt fastener, its characterized in that: including controller, pressure sensor, base plate, stand, support, first cylinder and box spanner, on the stand vertical fixation was in the base plate, the both sides of stand were located through the support branch to first cylinder and box spanner, box spanner's the coaxial fluted disc that is equipped with of surface, the fluted disc passes through the chain with the piston of first cylinder and is connected, pressure sensor links to each other with first cylinder, pressure sensor links to each other with the controller.

2. The electric oil pump bolt fastening device according to claim 1, characterized in that: the gear disc type socket wrench is characterized in that a motor is arranged between the support and the socket wrench, a shell of the motor is fixedly connected with the support, a power output end of the motor is connected with the socket wrench, and an overrunning clutch is arranged between the gear disc and the socket wrench.

3. The electric oil pump bolt fastening device according to claim 2, characterized in that: the stand is the second cylinder, and the piston and the base plate of second cylinder are fixed and are connected, and the cylinder body of second cylinder links to each other with the support.

4. The electric oil pump bolt fastening device according to claim 3, characterized in that: and a bearing is arranged between the cylinder body of the second cylinder and the support.

5. The electric oil pump bolt fastening device according to claim 4, characterized in that: the base plate is provided with at least 2 workpiece fixing devices, and the workpiece fixing devices are matched with the socket wrench.

6. The electric oil pump bolt fastening device according to claim 5, characterized in that: the workpiece fixing devices are circumferentially distributed by taking the upright columns as circle centers.

7. The electric oil pump bolt fastening device according to any one of claims 1 to 6, characterized in that: one end of the chain is connected with the piston of the first cylinder, and the other end of the chain is provided with a balance weight.