Foot board mechanism of movable workbench

Abstract

The invention relates to the technical field of press machines, in particular to a foot board mechanism of a movable working table, which comprises integral frames respectively fixed on the front side and the rear side of the movable working table, the integral frames are mounted on the front side and the rear side of the movable working table in a stepped manner, and the height of a horizontal frame of each integral frame is lower than that of the working table. A horizontal frame body of the overall frame is rotationally connected with an overturning foot board, the side edge, away from the movable workbench, of the overturning foot board is connected with the overall frame through a hinge, and the side, horizontally close to the movable workbench, of the overturning foot board is in butt joint with the side edge of the movable workbench. An extending material guide baffle is arranged on the side edge of the upper side of the movable workbench and used for being in lap joint with the overturned overturning foot board, and an air cylinder used for driving the overturning foot board to rotate is arranged in the overall frame. According to the foot board mechanism of the movable workbench, the foot board is arranged to be in a horizontal state and an inclined state which are pushed by the air cylinder and can be turned over, so that different use requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of presses, and particularly relates to a treadle mechanism installed on the front and rear sides of a movable workbench of a press. Background Art

[0002] In the existing press structure, for large machine tools, in order to facilitate the maintenance of the machine tool or the installation of the mold, sometimes the workbench is set as a movable workbench. During maintenance or mold installation, the workbench needs to be moved out of the machine tool interior, and after preliminary installation or maintenance, it is moved back into the interior. The width of the front and rear table boards of the workbench is relatively wide. Therefore, a horizontal treadle structure is designed for the protruding parts on the front and rear of this movable workbench to facilitate the inspection personnel to step on during maintenance. However, for this horizontal treadle structure, there is a height difference between it and the workbench. When the stamping blanking or waste of the press is discharged from the workbench and passes through the treadle with a height difference, it is easy to scatter, which is not convenient for the collection of blanking and on-site management. In addition, a slope for patent lapping and material guiding is required, resulting in inconvenient use and operation of the equipment. Therefore, it is necessary to design a transition treadle structure that can meet the smooth discharging requirements of the production process and is also convenient for maintenance. Summary of the Invention

[0003] In view of the dual requirements of the movable workbench maintenance and material guiding in the prior art, the present invention provides a treadle mechanism for a movable workbench that can meet the requirements in the above two different states. The treadle is set to be in two states: horizontal and inclined, which can be flipped to meet different usage requirements.

[0004] The object of the present invention is achieved as follows: A treadle mechanism for a movable workbench includes an integral frame respectively fixed to the front and rear sides of the movable workbench. The integral frame is installed on the front and rear sides of the movable workbench in a stepped manner, and the height of the horizontal frame of the integral frame is lower than the height of the workbench. It is characterized in that a rotatable treadle is rotatably connected to the horizontal frame of the integral frame. One side of the treadle away from the movable workbench is connected to the integral frame through a hinge. The side of the treadle horizontally close to the movable workbench is docked with the side edge of the movable workbench. An extended material guiding baffle is provided on the upper side edge of the movable workbench for lapping with the flipped treadle. A cylinder for driving the rotation of the treadle is provided inside the integral frame.

[0005] The tread platform mechanism of the mobile workbench of the present invention is provided with a flip-up tread platform on the front and rear sides of the mobile workbench. According to the usage requirements of the workbench, the tread platform can be placed horizontally by the push of a cylinder for stepping on during maintenance, or it can be flipped to be inclined and connected to the edge of the workbench for material guiding during the operation of the press, meeting the usage requirements of the tread platform in different situations. The tread platform mechanism of the mobile workbench of the present invention does not change the structure of the original workbench body. By improving the installation structure of the tread platform on the front and rear sides of the workbench, two usage states of the tread platform, namely inclined and horizontal, are realized, meeting the usage requirements of the horizontal tread platform and inclined material guiding of the mobile workbench, greatly improving production efficiency, reducing costs, and meeting the requirements of the workbench in different states.

[0006] For the convenience of installing the cylinder, the cylinder is inclined and arranged within the overall frame. A lower support for supporting and installing the cylinder is provided at the bottom of the overall frame. The lower support is rotatably connected to the bottom of the cylinder through a spherical plain bearing. A spherical plain bearing is also connected to the end of the piston rod of the cylinder. The center of the bottom side of the flip-up tread platform is provided with an upper support, and the upper support is rotatably connected to the spherical plain bearing at the end of the piston rod.

[0007] For the convenience of detecting the position and working state of the cylinder, a detection switch for detecting the position of the piston rod of the cylinder is provided within the cylinder.

[0008] To ensure the smooth flipping and support of the tread platform, two cylinders are symmetrically arranged under the flip-up tread platform.

[0009] For the convenience of controlling the action of the cylinder, the cylinder is connected to the air supply circuit, and the air supply circuit includes a ball valve, a filter, a pressure reducing valve, a five-port two-position solenoid valve, and a speed regulating valve that are sequentially connected to the compressed air source. Brief Description of the Drawings

[0010] Figure 1 It is a schematic installation layout diagram of the tread platform mechanism of the mobile workbench of the present invention.

[0011] Figure 2 It is a schematic diagram of the tread platform mechanism of the mobile workbench of the present invention.

[0012] Figure 3 It is a schematic diagram of the air supply circuit.

[0013] Among them, 1 is the workbench; 2 is the tread platform; 3 is the cylinder; 4 is the overall frame; 5 is the material guiding baffle; 6 is the upper support; 7 is the hinge; 8 is the spherical plain bearing; 9 is the lower support; 10 is the ball valve; 11 is the filter; 12 is the pressure reducing valve; 13 is the silencer; 14 is the five-port two-position solenoid valve; 15 is the speed regulating valve. Detailed Description of the Preferred Embodiment

[0014] The following will describe in detail the tread platform mechanism of the mobile workbench of the present invention with reference to the accompanying drawings.

[0015] AsFigures 1 - 3 As shown in the figure, it is the treadle mechanism of the mobile workbench of the present invention. For the convenience of description, Figure 1 only the treadle structure on one side of the workbench is shown in the figure. The other side is a symmetric structure with the part shown here. The specific structure includes an overall frame 4 fixed to the front side and the rear side of the moving workbench 1 respectively. The overall frame 4 is installed in a stepped manner on the front side and the rear side of the mobile workbench 1, and the height of the horizontal frame of the overall frame 1 is lower than the height of the workbench 1. This overall frame is a frame structure formed by welding or screwing steel sections fixedly connected to the frame of the bottom of the workbench 1. In the fixed treadle structure in the prior art, the treadle is fixedly installed on the horizontal frame of the whole frame, or an inclined treadle with a certain slope is fixed between the fixed frame and the side edge of the workbench, a horizontal treadle, which is convenient for personnel to step on or place tools, laying tools, etc. during maintenance. During the stamping process when the workbench moves into the machine tool, this horizontal treadle is not convenient for receiving and guiding materials. During the stepped dropping process of the materials, it is easy to scatter or fly out, and additional equipment for guiding materials or special personnel for sorting materials are required; while directly setting it as a slope-type treadle structure is convenient for receiving and guiding materials during the stamping process of the press, but it is not convenient during maintenance and inspection. Therefore, in the present invention, a rotatable treadle 2 is rotatably connected to the horizontal frame of the overall frame 4. The side of the treadle 2 away from the workbench 1 is rotatably connected to the overall frame 4 through a hinge 7. The side of the treadle 2 horizontally close to the mobile workbench 1 is butted against the side edge of the workbench 1. An extended material guiding baffle 5 is provided on the upper side edge of the workbench 1 for lapping with the flipped treadle 2. A cylinder 3 for driving the rotation of the treadle 2 is provided inside the overall frame 4.

[0016] As Figure 2 shown, for the convenience of installing the cylinder 3, the cylinder 3 is inclined and arranged inside the overall frame 4. A lower support 9 for supporting and installing the cylinder 3 is provided at the bottom of the overall frame 4. The bottom of the cylinder 3 is rotatably connected to the lower support 9 through a spherical plain bearing 9 to facilitate the cylinder 3. The end of the piston rod of the cylinder 3 is also connected with a spherical plain bearing. The center of the bottom side of the treadle 2 is provided with an upper support 6, and the upper support 6 is rotatably connected to the spherical plain bearing at the end of the piston rod; to ensure the stable flipping and support of the treadle 2, two cylinders 3 are symmetrically arranged under the treadle 2 to respectively support or flip the treadle synchronously.

[0017] In addition, for the convenience of detecting the position and working state of the cylinder 3, a detection switch for detecting the position of the piston rod of the cylinder is provided inside the cylinder 3.

[0018] As Figure 3As shown in the figure, for the convenience of controlling the operation of the cylinder 3, the cylinder 3 is connected to the air supply circuit. The air supply circuit includes a ball valve 10, a filter 11, a pressure reducing valve 12, a five-port two-position solenoid valve 14, and a speed regulating valve 15 that are sequentially connected to the compressed air source. Speed regulating valves 15 are provided on both sides of the pipelines of the air inlet and outlet cavities of the cylinder. A silencer 13 is connected to the exhaust port of the five-port two-position solenoid valve 14. Through the air supply circuit of the present invention, the stable flipping and support of the tread are realized, and the speed and intake pressure of the cylinder operation can be adjusted by adjusting the speed regulating valve and the pressure reducing valve. The state of the cylinder piston rod is detected by the detection switch to ensure the stable and reliable operation of the cylinder air supply circuit.

[0019] In the mobile workbench tread mechanism of the present invention, a flip-up tread 2 is provided on the front and rear sides of the workbench 1. According to the usage requirements of the workbench 1, the tread 2 can be placed horizontally for stepping on during maintenance by the push of the cylinder 3, or can be flipped to be inclined and lapped with the edge of the workbench 1 for material guiding during the operation of the press, meeting the usage requirements of the tread in different situations. The state of the tread can be realized only by controlling the operation of the cylinder 3, which is simple and convenient to operate, and can be directly refitted on the basis of the original workbench structure, meeting the usage requirements of the horizontal tread and inclined material guiding of the mobile workbench, greatly improving the production efficiency, reducing the cost, and meeting the requirements of the workbench in different states.

Claims

1. A tread mechanism for a mobile workbench, comprising an integral frame respectively fixed to the front side and the rear side of the mobile workbench, the integral frame being stepwise mounted on the front side and the rear side of the mobile workbench, and the height of the horizontal frame of the integral frame being lower than the height of the workbench, characterized in that, A tipping platform is rotatably connected to the horizontal frame of the overall frame. The side of the tipping platform away from the mobile workbench is connected to the overall frame through a hinge. The side of the tipping platform horizontally close to the mobile workbench is butted against the side edge of the mobile workbench. A protruding material guiding baffle is provided on the upper side edge of the mobile workbench for lapping with the tipped tipping platform. A cylinder for driving the tipping platform to rotate is provided inside the overall frame.

2. The tread mechanism of the mobile workbench according to claim 1, characterized in that, The cylinder is obliquely arranged inside the overall frame. A lower support for supporting and installing the cylinder is provided at the bottom of the overall frame. The support and the bottom of the cylinder are rotatably connected through a spherical plain bearing. A spherical plain bearing is also connected to the end of the piston rod of the cylinder. An upper support is provided at the center of the bottom side of the tipping platform. The upper support is rotatably connected to the spherical plain bearing at the end of the piston rod.

3. The tread mechanism of the mobile workbench according to claim 2, characterized in that, A detection switch for detecting the position of the piston rod of the cylinder is provided inside the cylinder.

4. The tread mechanism of the mobile workbench according to claim 2, characterized in that, Two cylinders are symmetrically arranged under the tipping platform for balance.

5. The tread mechanism of the mobile workbench according to claim 1, characterized in that, The cylinder is connected to a gas supply circuit. The gas supply circuit includes a ball valve, a filter, a pressure reducing valve, a two-position five-way solenoid valve, and a speed regulating valve that are sequentially connected to a compressed gas source.

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