CN203187054U - Automatic overturning device for car underframe - Google Patents

Abstract

An automatic overturning device for a car underframe comprises two side plates, an overturning frame, a lifting assembly and a centering assembly. A space for accommodating a to-be-overturned workpiece is arranged in the overturning frame, an upper pressing beam is arranged on the upper portion of the space, the overturning frame is rotatably installed between the two side plates, and a first driving motor for driving the overturning frame to rotate is installed on the overturning frame. The lifting assembly is located below the overturning frame and comprises a top beam for lifting the to-be-overturned workpiece and a second driving motor for driving the top beam to move up and down. The centering assembly comprises two material pushing plates movably installed on two sides of the overturning frame respectively and a third driving motor, wherein a body part of the third driving motor is fixed on the overturning frame, and the third driving motor is used for driving the two material pushing plates to simultaneously move toward the inner side or simultaneously move toward the outer side along the width direction of the overturning device. The automatic overturning device is high in safety, manual operation can be completely replaced, and workpiece overturning efficiency is improved.

Description

Car bottom frame automatic turning device

technical field

The utility model relates to an automatic overturning device for a car bottom frame.

Background technique

During the processing of some products, it is necessary to turn the workpiece 180 degrees to facilitate the processing of the workpiece; to maintain the continuity of production, it is necessary to turn the workpiece on the production line. The existing operation methods are mostly manually operated by cranes. Picking up the workpiece and turning it over, this operation method is less safe, especially when processing large workpieces, it is easy to cause the workpiece to drop, damage the workpiece and the equipment on the production line, and the labor intensity of the operator is relatively high, and the efficiency is low. Also have some overturning devices to utilize cylinder push mechanism, but these cylinder push mechanism can only be applicable to the overturning of some smaller workpieces, can't realize the overturn processing of large workpieces.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide an automatic overturning device for a car chassis, which can realize quick overturning of large workpieces, and has high safety and high efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions:

Car bottom frame automatic turning device, including,

side panels;

The overturn frame has a space for accommodating workpieces to be overturned inside, and the upper part of the space has an upper pressing beam. The width direction of the device is extended, and a first drive motor for driving the rotation of the overturning frame is installed on the overturning frame;

The lifting assembly is located under the turning frame. The lifting assembly includes a top beam for lifting the workpiece to be turned over and a second drive motor for driving the top beam to move up and down. A space for clamping the workpiece to be turned is formed between the pressing beams;

The centering component includes two movable push plates installed on both sides of the turning frame, and the body part is fixed on the turning frame and is used to drive the two pushing plates to move inward or outward along the width direction of the turning device at the same time Movement's third drive motor.

The upper conveyor belt is installed on the lower surface of the upper pressing beam, and the lower conveyor belt is installed on the lower part of the turning frame. The conveying direction of the upper conveyor belt and the lower conveyor belt is consistent with the length direction of the turning device. The lower driving motor of the lower conveyor belt is also equipped with an upper driving motor for driving the upper conveyor belt on the turning frame.

The top cross beam extends along the width direction of the turning device, and the top cross beam is provided with a transverse conveying mechanism whose conveying direction is consistent with the width direction of the turning device.

Both sides of the overturn frame are respectively provided with guide rods extending along the width direction of the overturn device, and the two pusher plates are respectively slidably installed on the two guide rods, and the two pusher plates are connected with the rotating shaft of the third drive motor in the manner of screw drive.

The front end of the reversing frame is equipped with a feeding and conveying assembly for transporting the workpiece to be turned over to the space of the reversing frame, and the rear end of the reversing frame is equipped with a device for conveying the turned workpiece from the space in the reversing frame to the next The outfeed conveyor assembly of the station.

A lifting assembly for driving the feeding conveying assembly to move up and down is also installed on the front end of the turning frame.

The overturning device also includes a damping buffer mechanism for buffering the impact force after the overturning frame is overturned.

The overturning device also includes a control unit, the rear end of the overturning frame is provided with a first contact sensor, the first contact sensor is used to sense the signal that the workpiece to be overturned is transported in place in the space of the overturning frame, the control unit according to the first The signal sent by a contact sensor controls the start of the second drive motor and the third drive motor; a second contact sensor is installed on the top of the overturn frame, and the second contact sensor is used to sense that the workpiece to be turned is pushed by the pushing plates on both sides. The control unit controls the first driving motor to start according to the signal sent by the second contact sensor.

The beneficial effects of the utility model are:

Compared with the prior art, the utility model limits the freedom of up and down and left and right movement of the workpiece during the turning process of the workpiece, which has higher safety, and the workpiece will not be twisted and deformed during the turning process, ensuring the integrity of the workpiece. It is suitable for the turning of some large workpieces; and has a high degree of automation, which can completely replace manual operations and improve the efficiency of workpiece turning.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the lifting assembly in Fig. 1;

Among them: 100, overturn frame; 110, upper pressure beam; 111, upper conveyor belt; 112, upper drive motor; 121, first drive motor; 122, transmission shaft; 123, coupling shaft; 124, turntable; Conveyor belt; 201, bracket; 200, lifting assembly; 202, second drive motor; 203, vertical screw rod; 204, top beam; 205, horizontal conveying mechanism; 300, centering assembly; 301, pusher plate; 302 , the guide rod; 303, the third drive motor; 304, the horizontal screw rod; 400, the feeding conveying assembly; 500, the lifting assembly; 600, the discharging conveying assembly; 900, the workpiece.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

Referring to Figures 1 and 2, the car bottom frame automatic overturning device of the present invention includes two side panels (not shown), an overturning frame 100, a lifting assembly 200, and a centering assembly 300.

The two side plates are the supporting parts of the whole overturning device. The overturning frame 100 is installed between the two side plates. It is a frame structure. A space for accommodating the workpiece 900 is formed inside the frame beam outside the overturning frame 100. The front end is in the shape of an opening for the workpiece 900 to enter the above-mentioned space. Both sides of the overturning frame 100 are respectively pivotally connected to the two side plates through a swivel seat 124, thus, the overturning frame 100 can be rotated around a rotation axis extending along the width direction of the overturning device (that is, the Y direction in the figure) relative to the two sides. The side panels turn. And on the reversing frame 100, a first drive motor 121 that drives the reversing frame 100 to rotate is installed, a transmission shaft 122 is synchronously connected on the rotating shaft of the first drive motor 121, and a transmission shaft 122 is synchronously connected to the outer end of the transmission shaft 122 through a reversing box. Coupling 123, the coupling 123 extends into the rotating base 124 and synchronously connects the overturning frame 100, through the above structure, starting the first driving motor 121 can turn the overturning frame 100 over 180 degrees. There are two upper pressing beams 110 on the upper part of the space in the flip frame 100, and an upper conveyor belt 111 is respectively installed on the lower surface of the two upper pressing beams 110, and the two upper conveyor belts 111 are driven by an upper driving motor 112. It is composed of a plurality of rollers arranged along the length direction of the overturning device (that is, the X direction in the figure), and a belt is wound outside the plurality of rollers. The conveying direction of the upper conveyor belt 111 is consistent with the X direction. Two lower conveyer belts 130 are installed on the bottom of the overturn frame 100, and these two lower conveyer belts 130 are all driven by a lower drive motor (not shown in the figure), and are respectively located directly below the two upper conveyer belts 111, and the lower conveyer belts The structure of 130 is the same as that of the above-mentioned upper conveyor belt 111, that is to say, its conveying direction is also consistent with the X direction.

The above-mentioned lifting assembly 200 is located directly below the flip frame 100, and it includes a bracket 201, two top beams 204, a second drive motor 202, and the second drive motor 202 drives a vertical screw 203 to rotate, and the vertical screw 203 on the vertical screw 203 The matched screw nut is fixedly connected with the connecting beam fixedly connected between the two top beams 204, thus, starting the second driving motor 202 can drive the two top beams 204 to move up and down, and the two top beams 204 move along the Extending in the Y direction, the two top crossbeams 204 are located between the above two lower conveyor belts 130, which mainly lift up the workpiece 900 located inside the turning frame 100 during the upward movement driven by the second drive motor 202, The workpiece 900 is lifted up in the space inside the reversing frame 100, and when the top beam 204 moves upward to the maximum position, a space for clamping the workpiece 900 is formed between it and the upper pressing beam 110, limiting the workpiece 900 up and down. freedom of movement. A transverse conveying mechanism 205 is installed on the upper surfaces of the two top beams 204, and the transverse conveying mechanism 205 includes a plurality of rollers arranged along the Y direction, that is, its conveying direction is consistent with the Y direction, that is to say, when the workpiece 900 is clamped up and down When held, it is actually clamped between the transverse conveying mechanism 205 and the upper conveyor belt 111.

The centering assembly 300 includes two respectively movable pusher plates 301 installed on both sides of the overturning frame 100, and a third drive motor 303 whose body part is fixed on the overturning frame 100. The rotating shaft of the third drive motor 303 is synchronously connected to two The horizontal screw rods 304 extending along the Y axis, the two horizontal screw rods 304 are placed on both sides of the flip frame 100, and the screw nuts that are matched and socketed on the two horizontal screw rods 304 are fixedly connected with the two pusher plates 301 respectively. Both sides of the overturn frame 100 are provided with guide rods 302 extending along the Y direction, and the pushing plate 301 on the same side is slidably socketed on the guide rods 302, thus, starting the third driving motor 303 can drive the two The pushing plate 301 moves inwardly or outwardly along the Y direction.

The front end of the reversing frame 100 is equipped with a feed conveying assembly 400 for transferring the workpiece 900 to be turned over to the space of the reversing frame 100, and the rear end of the reversing frame 100 is equipped with a device for transferring the workpiece 900 after being turned over from the reversing frame 100. The space inside is transported to the discharge conveying assembly 600 of the next station; the front end of the turning frame 100 is also equipped with a lifting assembly 500 for driving the feeding conveying assembly 400 to move up and down, and the lifting assembly 500 is used to move the feed conveying assembly 400 up and down. The feeding conveying assembly 400 is raised to the same height as the lower conveying belt 130 , so that the workpiece 900 can be smoothly transferred from the feeding conveying assembly 400 to the lower conveying belt 130 .

The overturning device also includes a damping buffer mechanism for buffering the impact force after the overturning frame 100 is overturned.

The above-mentioned overturning device also includes a control unit, the rear end of the overturning frame 100 is provided with a first contact sensor, and the first contact sensor is used to sense the signal that the workpiece 900 to be overturned is transported in place in the space of the overturning frame 100, The control unit controls the second drive motor 202 and the third drive motor to start 303 according to the signal sent by the first contact sensor; the top of the overturn frame 100 is equipped with a second contact sensor, which is used to sense the workpiece to be turned over 900 is a signal that the top beam 204 is lifted into place, and the control unit controls the first driving motor to start 121 according to the signal sent by the second contact sensor.

When working, the workpiece 900 is conveyed by the feeding conveying assembly 400, the workpiece 900 enters the space of the reversing frame 100 from the opening at the front end of the reversing frame 100, and continues to move backward along the X direction in the reversing frame 100 by the lower conveyor belt 130 Conveying, when the rear end of the workpiece 900 is conveyed to the end of the reversing frame 100, it touches the first contact sensor, and the first contact sensor receives a signal that the workpiece 900 is transported to the position and sends the signal to the control unit , the control unit starts the second driving motor 202 and the third driving motor 303 according to the signal, the second driving motor 202 drives the top beam 204 to move upwards, and the workpiece 900 is placed on the transverse conveying mechanism 205 on the top of the two top beams 204, and therewith Simultaneously, the third drive motor 303 drives the pusher plates 301 on both sides to move inwardly simultaneously. Because the motion of the two pusher plates 301 is synchronous, the two can finally make the workpiece 900 in the middle position. When the above-mentioned top beam 204 is upward When moving to the maximum position, the workpiece 900 is clamped by the conveyer belt 111 and the horizontal conveying mechanism 205 respectively up and down, while its two sides are clamped by two pusher plates 301, thus limiting the freedom of the workpiece 900 to move up and down, left and right degree, when the two pushing plates 301 press both sides of the workpiece 900, the second contact sensor receives the signal that the two sides of the workpiece 900 are pressed by the two pushing plates 301, and sends the signal to the control unit to control The unit controls the first driving motor 121 to start according to the signal, and turns the overturning frame 100 180 degrees. At this time, the upper conveyor belt 111 is located at the lower part and carries the weight of the workpiece 900. The two pushing plates 301 and the top beam 204 are reset, and the upper conveyor belt 111 drives the workpiece 900 to move backward to the discharge conveying assembly 600, and then is transferred to the next station by the discharge conveying assembly 600.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (8)

1. The automatic turning device of the car bottom frame is characterized in that it comprises, side panels; The overturn frame has a space for accommodating workpieces to be overturned inside, and the upper part of the space has an upper pressing beam. The width direction of the device is extended, and a first drive motor for driving the rotation of the overturning frame is installed on the overturning frame; The lifting assembly is located under the turning frame. The lifting assembly includes a top beam for lifting the workpiece to be turned over and a second drive motor for driving the top beam to move up and down. A space for clamping the workpiece to be turned is formed between the pressing beams; The centering component includes two movable push plates installed on both sides of the turning frame, and the body part is fixed on the turning frame and is used to drive the two pushing plates to move inward or outward along the width direction of the turning device at the same time Movement's third drive motor. 2. Turning device as claimed in claim 1, it is characterized in that, upper conveyer belt is installed on the lower surface of pressing crossbeam, and lower conveyer belt is installed on the bottom of overturn frame, and the conveying direction of upper conveyer belt and lower conveyer belt are all with The length direction of the overturning device is consistent, and a lower drive motor for driving the lower conveyor belt is also installed on the overturn frame, and an upper drive motor for driving the upper conveyor belt is also installed on the overturn frame. 3. The overturning device according to claim 1, wherein the top beam extends along the width direction of the overturning device, and the top beam is provided with a transverse conveying mechanism whose conveying direction is consistent with the width direction of the overturning device. 4. Turning device as claimed in claim 1, it is characterized in that, the two sides of the turning frame are respectively provided with guide rods extending along the width direction of the turning device, and the two pusher plates are respectively slidably installed on the two guide rods, and the two pushers The plate is connected with the rotating shaft of the third drive motor in the manner of screw drive. 5. The overturning device according to claim 1, wherein the front end of the overturning frame is equipped with a feed delivery assembly for transporting the workpiece to be overturned to the space of the overturning frame, and the rear end of the overturning frame is equipped with a The output conveying component is used to transport the inverted workpiece from the space in the inverted frame to the next station. 6 . The turning device according to claim 5 , wherein a lifting component for driving the feeding conveying component to move up and down is installed on the front end of the turning frame. 7 . 7. The overturning device according to claim 1, further comprising a damping buffer mechanism for buffering the impact force after the overturning frame is overturned. 8. The overturning device according to claim 1, characterized in that the overturning device also includes a control unit, and the rear end of the overturning frame is provided with a first contact sensor, which is used to sense the workpiece to be overturned. The signal sent to the position in the space of the reversing frame, the control unit controls the second drive motor and the third drive motor to start according to the signal sent by the first contact sensor; the top of the reversing frame is equipped with a second contact sensor, the first The second contact sensor is used to sense the signal that the workpiece to be flipped is pushed by the pushing plates on both sides, and the control unit controls the first drive motor to start according to the signal sent by the second contact sensor.

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