Turnover workbench for part machining

Abstract

A turn-over workbench used for part machining comprises an air compressor, a linear air cylinder, a PLC, a proximity sensor, a buffer, a rack and a rotary clamping air cylinder and further comprises a turn-over mechanism. The rack comprises a stand column and a connecting rod, the connecting rod and the stand column are installed together, a limiting base is installed at the upper end of the stand column, supporting bases are installed on the two sides in the stand column, and the lower end of the linear air cylinder is hinged to the lower ends of the supporting bases. The turnover mechanism comprises a supporting frame and supporting plates, the front ends of the multiple supporting plates are horizontally installed at the front end of the supporting frame at intervals, and the lower ends of the multiple sets of rotary clamping air cylinders are installed at the front ends and the rear ends of the multiple supporting plates respectively. The upper end of the linear cylinder is hinged to the lower end of the supporting frame. The front end of the limiting base and the front end of the supporting frame are hinged and installed together, one supporting plate is provided with an installation hole, and the proximity sensor is installed in the installation hole. In the machining process after the plate is clamped in place, displacement cannot occur, and beneficial technical support is provided for effective machining of the plate in the next working procedure.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production auxiliary equipment, in particular to a turnover workbench used for component processing. Background Art

[0002] In production lines such as automobiles, after a component (such as a car door or other panel material) is transported from the previous process to the next station, in order to facilitate the next station's processing of the component (such as installing parts or welding through other machines and equipment), the component will be flipped over at a certain angle through a flipping device so that the processing surface of the component is aligned with the processing point of the next station, making it convenient for the next process to perform various corresponding processing on the corresponding end faces of the panel material.

[0003] At present, for the turning over of plates, there are two methods: manual turning and mechanical turning. In manual turning, two workers lift the plates by hand to turn them over. When the weight of the plates is heavy, the labor intensity of the workers will increase, and the weight is too heavy to operate, and the production cost will increase accordingly. In the mechanical turning equipment, the plates are transported to the position of the mechanical turning equipment by hoisting or mechanical arm, and then the cylinder of the mechanical turning equipment pushes the turning panel to rotate a certain angle along the hinge point, and then the corresponding equipment of the next process performs various corresponding processing on the corresponding end faces of the plates. The above-mentioned mechanical turning equipment improves work efficiency and saves labor costs, but due to structural limitations, there are also the following technical shortcomings that need to be improved. Specifically, after the mechanical turning equipment turns the plate, since the plate cannot be fixed, when the corresponding equipment of the next process processes the corresponding end faces of the plates, it is affected by vibration or other factors, and there is a probability that the plates will be displaced during processing, which will have an adverse effect on the processing process of the plates and the final processing quality of the plates. In summary, it is very necessary to provide a workbench that can prevent the workpiece from shifting during processing after it is automatically turned over. Utility Model Content

[0004] In order to overcome the drawbacks of existing mechanical turning equipment due to structural limitations as described in the background, the utility model provides a turning table for component processing that can automatically clamp the plates and turn them over after the plates are placed in place in the previous process, thereby ensuring that the plates will not be displaced after turning over, thereby providing favorable technical support for the effective processing of the plates in the next process.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A flip workbench for component processing, comprising an air compressor, a linear cylinder, a PLC, a proximity sensor, a buffer, a frame, and a rotary clamping cylinder, characterized in that it also has a flipping mechanism; the frame comprises columns and connecting rods, and a plurality of connecting rods are respectively installed together with a plurality of columns, and a limit seat is installed at the upper ends of the plurality of columns, and support seats are respectively installed on both sides of the columns, and the lower end of the linear cylinder is hingedly installed at the lower end of the support seat; the flipping mechanism comprises a support frame and a support plate, and there are a plurality of support plates, and the front ends of the plurality of support plates are horizontally installed at the front end of the support frame at a distance, and the lower ends of a plurality of sets of rotary clamping cylinders are respectively installed on the front and rear ends of the plurality of support plates; the upper end of the linear cylinder is hingedly installed at the lower end of the support frame; the front end of the limit seat and the front end of the support frame are hingedly installed together, and one of the support plates has a mounting hole, and the proximity sensor is installed in the mounting hole.

[0007] Furthermore, the upper ends of the plurality of support plates and the upper end of the support frame are in a horizontal plane, and the height of the upper end of the detection head of the proximity sensor is lower than the height of the upper end of the support plate.

[0008] Furthermore, the left-right width and the front-back length of the support frame and the limiting seat are respectively consistent.

[0009] Furthermore, a limiting column is installed on the outer side of the front upper end of the column.

[0010] Furthermore, when the lower end of the support frame contacts the upper end of the limiting seat, the support plate is in a horizontal structure.

[0011] Furthermore, the spring buffer is respectively installed on the lower inner side of the limiting seat and the upper end of the limiting column.

[0012] Furthermore, the spacing between the multiple sets of rotary clamping cylinders is greater than the front-to-back width of the plate, and when the movable clamps of the multiple sets of rotary clamping cylinders are located on the inner side, the spacing between the movable clamps of the multiple sets of rotary clamping cylinders is less than the front-to-back width of the plate.

[0013] Compared with the prior art, the beneficial effect of the utility model is as follows: in the application of the utility model, after the previous process places the plates on six support plates (for example, the mechanical arm of a multi-axis robot will place the plates on six support plates), the proximity sensor detects it and outputs a signal to the PLC or the host computer. The PLC will control the movable chucks of the six sets of rotary clamping cylinders to rotate a certain angle respectively, and then drop the height, and clamp the upper part of the front and rear ends and the left and right ends of the plates respectively, and then control the two sets of linear cylinders to push the support frame and the plates to rotate about 60 degrees toward the front hinge point. After the processing is completed, the plates return to the initial position and the movable chucks of the six sets of rotary clamping cylinders no longer clamp the plates, etc., and the previous process can take away the processed plates. After the plates of the utility model are in place, no displacement will occur during the processing, which provides favorable technical support for the effective processing of the plates in the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model in a state where it is not turned over.

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model in a turned-over state. DETAILED DESCRIPTION

[0017] Figure 1 , 2 As shown in the figure, a flip workbench for component processing includes an air compressor (not shown in the figure), a linear cylinder 1, a PLC (or a host computer, not shown in the figure), a proximity sensor 2, a buffer 3, a frame 4, and a rotary clamping cylinder 5. The multi-channel power output end of the PLC and the power input end of the matching solenoid valves of the two sets of linear cylinders 1 and six sets of rotary clamping cylinders 5 are respectively connected via wires, the signal output end of the proximity sensor 2 and the signal input end of the PLC are connected via wires, and the air intake pipes of the two sets of linear cylinders 1 and six sets of rotary clamping cylinders 5 solenoid valves and the exhaust pipes of the air storage tank of the air compressor are respectively connected in parallel via hoses with a length margin and a certain hardness (not shown in the figure); it also has a flip mechanism 6; the frame includes columns 41 and connecting rods 42, wherein four connecting rods 42 are respectively welded to the inner ends of the four columns 41, and the upper ends of the four columns 41 are welded together. The horizontal welding has a "Π"-shaped limit seat 43, and a support seat 44 is welded to the inner side of the two longitudinally distributed connecting rods 42 respectively. The lower ends of the cylinders of the two sets of linear cylinders 1 are respectively hingedly mounted on the lower and rear ends of the inner side of the support seat 44; the flip mechanism includes a "Π"-shaped support frame 61 and a support plate 62. There are six support plates 62. The front ends of the six support plates 62 are horizontally welded to the rear side of the front end of the support frame 61 at a distance of about 100 meters. The lower ends of the cylinders of the six sets of rotary clamping cylinders 5 are respectively fixedly mounted on the upper parts of the front and rear ends of the six support plates 62 by bolts; the upper ends of the piston rods of the two sets of linear cylinders 1 are respectively hingedly mounted on the lower side of the middle of the left and right ends of the support frame 61; there is a mounting hole on the rear side of the upper end of the middle support plate, and the proximity sensor 2 is vertically mounted in the mounting hole; the two sides of the front end of the support frame 61 are respectively hingedly mounted on the two sides of the front upper end of the limit seat 43. The lower ends of the four columns 41 are respectively fixedly mounted on the ground by bolts, and the front side of the equipment is the processing station of the next process.

[0018] Figure 1 , 2As shown in the figure, the upper ends of the six support plates 62 and the upper end of the support frame 61 are in a horizontal plane, and the upper end height of the detection head of the proximity sensor 2 is lower than the upper end height of the support plate 62. The left and right widths and the front and rear lengths of the support frame 61 and the limit seat 43 are respectively consistent. A limit column 7 is welded to the outer side of the upper ends of the two front columns 41 (to limit the left and right positions of the plate, etc., to prevent it from shifting left and right before turning into place). When the lower end of the support frame 61 contacts the upper end of the limit seat 43, the support plate 62 is in a horizontal structure. The buffer 3 is a spring buffer, wherein two sets of spring buffers 3 are respectively vertically fixed by bolts in the middle of the two ends of the inner side of the limit seat 43, and the upper end height of the elastic part of the spring buffer is higher than the upper end height of the limit seat 43 and the support plate (the distance between the side of the spring buffer and the support plate does not hinder the upward and downward movement of the support plate) (when the plate is placed on the support plate 62, since the upper end height of the elastic part of the spring buffer is higher than the upper end height of the limit seat 43 and the support plate 62, it can play a supporting and buffering role for the downward movement of the plate, preventing the lower end of the plate from contacting the upper end of the support plate with excessive force, causing damage to the upper end of the support plate, etc.); the other two sets of spring buffers 3 are respectively tilted and fixed by bolts on both sides of the upper end of the limit column 7, and the elastic part is located at the rear end (to limit the forward inclination angle of the plate, and keep the plate at about 60 degrees after turning over). The front-to-back spacing between the six sets of rotary clamping cylinders 5 is greater than the front-to-back width of the plate. When the movable clamps 51 of each two sets of rotary clamping cylinders are respectively located in the front and rear inner side face-to-face structure, the spacing between the upper end clamping openings of the movable clamps 51 of the six sets of rotary clamping cylinders is less than the front-to-back width of the plate.

[0019] Figure 1 , 2As shown, in the application, after the previous process places the plate etc. on the six support plates (for example, the mechanical arm of the multi-axis robot will place the plate etc. on the six support plates), the proximity sensor 2 (NPN type photoelectric switch finished product of model E3F-DS30C4, which has two power input terminals and one signal output terminal, the two power input terminals and the power output terminal of the AC 220V to DC 12V power module are respectively connected through wires, the signal output terminal and the signal input terminal of the PLC are connected through wires, and when the upper end detection head detects an obstacle, the signal output terminal will output a high level to enter the signal input terminal of the PLC), after detection, the signal is output to the PLC or the host computer, and the PLC first controls the corresponding solenoid valves of the six sets of rotating clamping cylinders 5 to be energized and work, and the movable chucks 51 of the six sets of rotating clamping cylinders are respectively rotated 90 degrees, and the chucks 51 are rotated from the outside to the inside and are respectively located around the upper end of the plate etc. (at this moment, the corresponding solenoid valves are controlled to lose power), and then, the movable chucks 51 of the six sets of rotating clamping cylinders are respectively lowered in height to clamp the upper part of the front and rear ends of the plate respectively (the chucks are located at the inner end). Then, the PLC controls the corresponding solenoid valves of the two sets of linear cylinders 1 to be powered on, and the piston rods of the two sets of linear cylinders 1 drive the support frame 61 and the plate to rotate about 60 degrees toward the front hinge point along the hinge point (at this moment, the corresponding solenoid valve is controlled to lose power). Then, the corresponding equipment of the next process performs various corresponding processing on the corresponding end faces of the plate, etc. After the new plate is in place, no displacement will occur during the processing, which provides favorable technical support for the effective processing of the plate in the next process. After the processing is completed, the PLC controls the other corresponding solenoid valves of the two sets of linear cylinders 1 to be powered on, and the piston rods of the two sets of linear cylinders 1 drive the support frame 61 and the plate to rotate about 60 degrees toward the rear hinge point along the hinge point (at this moment, the corresponding other solenoid valve is controlled to lose power). When the lower end of the support frame 61 contacts the upper end of the limit seat 43, the support plate 62 is in a horizontal structure, ready for the next clamping, fixing, and flipping of the next plate. When the plate is horizontal, the PLC controls the other corresponding solenoid valves of the six sets of rotating clamping cylinders 5 to be powered on, and the movable chucks 51 of the six sets of rotating clamping cylinders rise to different heights, and then rotate about 90 degrees to return to the initial position (the chuck is located at the outer end), and no longer clamp the front and rear ends of the plate (at this moment, the corresponding other solenoid valves are controlled to lose power). In this way, the mechanical arm of the multi-axis robot can take the processed plate away from the six support plates and complete the entire workflow. It should be noted that the working method of the PLC or the host computer to control the cylinder solenoid valve based on the input level signal is an extremely mature control technology. This application does not provide any protection for the working method of the PLC or the host computer to control the cylinder solenoid valve based on the input level signal. This application protects the technical solution that the relevant mechanisms can work together to automatically clamp the plate for turning over.

[0020] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.

[0021] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A turning workbench for component processing, comprising an air compressor, a linear cylinder, a PLC, a proximity sensor, a buffer, a frame, and a rotary clamping cylinder, characterized in that: It also has a flipping mechanism; the frame includes columns and connecting rods, and multiple connecting rods are respectively installed with multiple columns, and the upper ends of the multiple columns are installed with limit seats, and support seats are respectively installed on both sides of the columns, and the lower end of the linear cylinder is hingedly installed at the lower end of the support seat; the flipping mechanism includes a support frame and a support plate, and there are multiple support plates, and the front ends of the multiple support plates are horizontally installed at the front end of the support frame at a distance, and the lower ends of multiple sets of rotary clamping cylinders are respectively installed on the front and rear ends of the multiple support plates; the upper end of the linear cylinder is hingedly installed at the lower end of the support frame; the front end of the limit seat and the front end of the support frame are hingedly installed together, and one of the support plates has a mounting hole, and the proximity sensor is installed in the mounting hole.

2. A turning workbench for component processing according to claim 1, characterized in that: The upper ends of the plurality of support plates and the upper ends of the support frames are in a horizontal plane, and the height of the upper end of the detection head of the proximity sensor is lower than the height of the upper end of the support plate.

3. The turning table for parts processing according to claim 1, characterized in that: The left-right width and the front-back length of the support frame and the limit seat are respectively consistent.

4. The turning table for parts processing according to claim 1, characterized in that: A limit column is installed on the outer side of the front upper end of the column.

5. The turning table for parts processing according to claim 1, characterized in that: When the lower end of the support frame contacts the upper end of the limiting seat, the support plate is in a horizontal structure.

6. The turning table for parts processing according to claim 4, characterized in that: The spring buffer is respectively installed on the lower inner side of the limiting seat and the upper end of the limiting column.

7. The turning table for parts processing according to claim 1, characterized in that: The spacing between the multiple sets of rotary clamping cylinders is greater than the front-to-back width of the plate. When the movable clamps of the multiple sets of rotary clamping cylinders are located inside, the spacing between the movable clamps of the multiple sets of rotary clamping cylinders is less than the front-to-back width of the plate.

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