Rotary table with vertical and horizontal overturning structure and use method

Abstract

The invention discloses a vertical-horizontal overturning structure rotary table and a using method, and belongs to the technical field of machinery. Comprising a mechanical structure and a hydraulic loop, and a cross-shaped scribing table of the mechanical structure is connected with a three-jaw chuck; the blades are connected with the turntable and the auxiliary support; the rotary table is connected with the blade and the overturning table; the first tensioning oil cylinder is connected with the overturning table; the turnover shaft is connected with the turnover table and the turnover support frame; the second tensioning oil cylinder is connected with the overturning table; the first hydraulic cylinder is connected with the overturning table and the base; the adjusting pad is connected with the vertical support frame and the horizontal support frame; the vertical support frame is connected with the base and the adjusting pad; the positioning block is connected with the base; the turnover support frame is connected with the turnover shaft and the base; the T-shaped groove screw is connected with the base; the adjusting sizing block is connected with the base; the second hydraulic cylinder is connected with the base and the overturning table; the horizontal support frame is connected with the adjusting pad and the base; the auxiliary support is connected with the blade.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a turntable with a vertical or horizontal flip structure and a use method thereof. Background Art

[0002] The vertical and horizontal flip structure turntable is a kind of hydraulic drive system that realizes the safe and stable flipping of the turntable and the workpiece in the horizontal and vertical directions according to the actual working conditions. The existing flipping mechanism on the market can only provide the vertical and horizontal state conversion of the parts, and the flipping positioning accuracy cannot be guaranteed, so it is impossible to combine the flipping action with the processing process. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a turntable with a vertical and horizontal turning structure and a use method thereof.

[0004] A turntable with a vertical and horizontal turning structure comprises a mechanical structure and a hydraulic circuit, wherein the cross-marking table of the mechanical structure is connected to a three-jaw chuck; the blade is connected to the turntable and the auxiliary support; the turntable is connected to the blade and the turning table; the first tensioning oil cylinder is connected to the turning table; the turning shaft is connected to the turning table and the turning support frame; the second tensioning oil cylinder is connected to the turning table; the first hydraulic cylinder is connected to the turning table and the base; the adjustment pad is connected to the vertical support frame and the horizontal support frame; the vertical support frame is connected to the base and the adjustment pad; the positioning block is connected to the base; the turning support frame is connected to the turning shaft and the base; the T-slot screw is connected to the base; the adjustment pad is connected to the base; the second hydraulic cylinder is connected to the base and the turning table; the horizontal support frame is connected to the adjustment pad and the base; the auxiliary support is connected to the blade, and the hydraulic The circuit includes a hydraulic main oil circuit, a turning action branch and a tensioning action branch. The oil tank, motor, pump, one-way valve, overflow valve, turning branch / tensioning branch and oil tank are connected in sequence to form a hydraulic main oil circuit. The oil tank, motor, pump, one-way valve, overflow valve, turning reversing valve, turning balancing valve, pressure reducing valve, throttle valve, cylinder floating solenoid reversing valve, one-way speed regulating valve, pressure gauge, explosion-proof valve and hydraulic cylinder are connected in sequence to form a turning action branch. All hydraulic components of the turning action branch are connected in series. The oil tank, motor, pump, one-way valve, overflow valve, tensioning and releasing reversing valve, pressure reducing valve, one-way valve and pulling claw are connected in sequence to form a tensioning action branch. All hydraulic components of the tensioning action branch are connected in series. The accumulator is connected in parallel to the tensioning action branch before the pulling claw.

[0005] A method for using a turntable with a vertical and horizontal flip structure includes a hydraulic driving step and an electric control box control step to achieve safe and stable flipping of the turntable and the workpiece in the horizontal and vertical directions. A machining operator clamps a blade and the blade is flipped to a processing position by electric control. The flip positioning accuracy is within 0.02 mm, and processing is achieved with the cooperation of a three-jaw chuck, a cross-scratching table and an auxiliary support.

[0006] The advantages of the present invention are: it adopts a claw-type fixing form, which is low in cost and easy to install, but it requires a reasonable arrangement of the tensioning position, which has high requirements for design work. It improves work efficiency and reduces errors and safety hazards caused by human factors. In terms of positioning control, through design accuracy and process control, the repeated positioning accuracy is controlled within 0.02mm. No product on the market can achieve this accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the figure:

[0008] Figure 1 It is a structural diagram of the present invention.

[0009] Figure 2 It is the hydraulic principle diagram of the present invention. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] Example 1: Figure 1 and Figure 2As shown, a vertical and horizontal turning structure turntable includes a cross-scratching table 1, a three-jaw chuck 2, a blade 3, a turntable 4, a turning table 5, a first tensioning cylinder 6, a turning shaft 7, a second tensioning cylinder 8, a first hydraulic cylinder 9, an adjustment pad 10, a vertical support frame 11, a positioning block 12, a turning support frame 13, a T-slot screw 14, an adjustment pad 15, a base 16, a second hydraulic cylinder 17, a horizontal support frame 18, and an auxiliary support 19. The cross-scratching table 1 is connected to the three-jaw chuck 2; the blade 3 is connected to the turntable 4 and the auxiliary support 19; the turntable 4 is connected to the blade 3 and the turning table 5; the first tensioning cylinder 6 is connected to the turning table 5; the turning shaft 7 is connected to the turning The platform 5 is connected to the flip support frame 13; the second tensioning cylinder 8 is connected to the flip platform 5; the first hydraulic cylinder 9 is connected to the flip platform 5 and the base 16; the adjustment pad 10 is connected to the vertical support frame 11 and the horizontal support frame 18; the vertical support frame 11 is connected to the base 16 and the adjustment pad 10; the positioning block 12 is connected to the base 16; the flip support frame 13 is connected to the flip shaft 7 and the base 16; the T-slot screw 14 is connected to the base 16; the adjustment pad 15 is connected to the base 16; the second hydraulic cylinder 17 is connected to the base 16 and the flip platform 5; the horizontal support frame 18 is connected to the adjustment pad 10 and the base 16; the auxiliary support 19 is connected to the blade 3.

[0012] like Figure 2 As shown, the hydraulic principle includes two functions, namely, the turning action and the tensioning action, which are controlled by two branches respectively and do not affect each other.

[0013] The hydraulic circuit includes a main hydraulic oil circuit, a turning action branch circuit and a tensioning action branch circuit.

[0014] The oil tank ①, the motor ②, the pump ④, the one-way valve ⑧, the overflow valve ①0, the flip branch / tension branch and the oil tank ① are connected in sequence to form a hydraulic main oil circuit.

[0015] Oil tank①, motor②, pump④, check valve⑧, overflow valve①0, reversing valve Flip balance valve Pressure reducing valve Throttle valve Cylinder floating solenoid reversing valve One-way speed regulating valve Pressure gauge Explosion-proof valve and hydraulic cylinder They are connected in sequence to form a flipping action branch, and all the hydraulic components of the flipping action branch are connected in series.

[0016] Oil tank①, motor②, pump④, check valve⑧, overflow valve①0, tension and release reversing valve Pressure reducing valve Check valve And claw Connect in sequence to form a tensioning action branch, connect all the hydraulic components of the tensioning action branch in series, and accumulator In the claw Previously connected in parallel to the tensioning branch.

[0017] The driving mode should not only consider the realization of the motion function, but also take into account the changes in pressure and thrust of the first flip hydraulic cylinder 9 and the second flip hydraulic cylinder 17 caused by the change in the center of gravity during the blade flipping process, that is, the role of the flip balance valve.

[0018] An explosion-proof valve is added to the hydraulic cylinder to ensure that the hydraulic oil circuit can ensure that the flipping mechanism and the workpiece remain in place in the event of an accident and will not be damaged.

[0019] Example 2: Figure 1 and Figure 2 As shown, a method for using a vertical and horizontal flip structure turntable includes the following steps: a hydraulic driving step realizes safe and stable flipping of the turntable and the workpiece in the horizontal and vertical directions; the machining operator clamps the blade, and the electric control flips to the processing position; the flip positioning accuracy is within 0.02mm, and the processing is realized under the cooperation of the three-jaw chuck, the cross-scratching table and the auxiliary support. The vertical and horizontal flip structure turntable includes a base, a support frame, a single-acting hydraulic cylinder, a flip shaft, a flip table, a turntable, and a tensioning mechanism. A support frame and a single-acting hydraulic cylinder are arranged on the base; the support frame includes a vertical support frame, a horizontal support frame and a flip support frame; a flip shaft is arranged on the flip support frame; the flip table realizes vertical and horizontal flipping through a high-precision tapered roller bearing and a flip shaft; the single-acting hydraulic cylinder is connected to the flip table to provide a driving force for vertical and horizontal flipping; the turntable and the flip table are fixed together to form a whole; the tensioning mechanism includes a hydraulic cylinder, a disc spring, a rivet and a pull claw; the rivet is fixed on the vertical support frame and the horizontal support frame, and the hydraulic cylinder, the disc spring and the pull claw are fixed on the flip table.

[0020] During operation, the turntable is driven by the flip table to realize vertical-horizontal conversion. When the workpiece is clamped, the turntable is in the vertical position to clamp the workpiece. When processing is required, after the workpiece is clamped, the turntable is flipped to the horizontal position for processing.

[0021] Hydraulic drive steps:

[0022] The hydraulic driving step includes a hydraulic driving step, a turning action driving step and a tensioning action driving step.

[0023] The hydraulic driving step includes: the motor ② drives the pump ④, the driving pump ④ draws liquid (hydraulic oil, etc.) from the oil tank ①, and connects the one-way valve ⑧ and the overflow valve ①0 through a pipeline to provide power for the flipping action step; the motor ② drives the pump ④, the driving pump ④ draws liquid (hydraulic oil, etc.) from the oil tank ①, and connects the one-way valve ⑧ and the overflow valve ①0 through a pipeline to provide power for the tensioning action step.

[0024] Flipping action driving steps: oil tank ①, motor ②, pump ④, check valve ⑧, overflow valve ①0, flip reversing valve Flip balance valve Pressure reducing valve Throttle valve Cylinder floating solenoid reversing valve One-way speed regulating valve Pressure gauge Explosion-proof valve and hydraulic cylinder They are connected in sequence to form a flipping action branch, and all the hydraulic components of the flipping action branch are connected in series.

[0025] Driving steps of tensioning action: oil tank ①, motor ②, pump ④, check valve ⑧, overflow valve ①0, tensioning and releasing reversing valve Pressure reducing valve Check valve And claw Connect in sequence to form a tensioning action branch, connect all the hydraulic components of the tensioning action branch in series, and accumulator In the claw Previously connected in parallel to the tensioning branch.

[0026] The driving mode should not only consider the realization of the motion function, but also take into account the changes in pressure and thrust of the first flip hydraulic cylinder 9 and the second flip hydraulic cylinder 17 caused by the change in the center of gravity during the blade flipping process, that is, the role of the flip balance valve.

[0027] The hydraulic drive step includes two parts: flipping action drive and tensioning action drive. These two parts are connected in parallel in the hydraulic pipeline. The hydraulic action sequence is to first open the claws through hydraulic pressure, then perform the flipping action through the flipping hydraulic cylinder, and when the flipping action is completed, cancel the tensioning drive hydraulic pressure and tighten through the disc spring force.

[0028] Flip drive steps: oil tank ①→motor ②→pump ④→check valve ⑧→relief valve ①0→flip reversing valve →Flip balance valve →Pressure reducing valve →Throttle valve →Cylinder floating solenoid reversing valve →One-way speed regulating valve →Pressure gauge →Explosion-proof valve →Hydraulic Cylinder → represents the direction of the action step.

[0029] Detailed description of the flip action:

[0030] 1. Flip from horizontal state to vertical state: motor M is energized to drive the pump group to suck oil, and the a end of the flip-over valve is energized in the YV1 state, and the oil flows through the balance valve, speed regulating valve, and explosion-proof valve YV7 / YV8 to supply oil to the hydraulic cylinder.

[0031] 2. Flip from vertical state to horizontal state: motor M is energized to drive the pump group to suck oil, and the b end of the flip-over valve is energized in the YV1 state, flowing through the balance valve, speed regulating valve, and explosion-proof valve YV9 / YV10 to supply oil to the hydraulic cylinder.

[0032] 3. Two flipping forms: after flipping into place, the in-place signal is triggered, and the cylinder floating button is pressed manually. The cylinder floating solenoid valve YV5 / YV6 is energized to relieve the pressure of the hydraulic cylinder. At this time, the tensioning action can be performed.

[0033] Detailed description of the tightening action:

[0034] Before performing the forward and reverse flipping, the b end of the claw reversing valve is energized in the YV4 state to open the claw. After flipping into place, the a end of the claw reversing valve is energized in the YV3 state to close the claw.

[0035] Example 3: Figure 1 and Figure 2 As shown, a method for using a vertical and horizontal turning structure turntable includes the following steps:

[0036] The base is the basic support component of the entire flip mechanism, providing a stable installation platform for other components. It is fixed to the machine tool working platform by T-slot screws and nuts, and the adjustment pads and positioning blocks are used to ensure the position accuracy of the mechanism relative to the machine tool.

[0037] There are four hydraulic cylinders distributed on both sides of the mechanism, two of which (the first hydraulic cylinder 9) provide hydraulic pressure for forward flipping; the other two (the second hydraulic cylinder 17) are used to supply hydraulic pressure for reverse flipping.

[0038] The turntable and the turning table are fixed together with screws and positioning keys, and the propeller blades are connected to the turntable surface through flanges, so that the rotational movement around the X-axis of the machine tool can be realized during the blade processing.

[0039] The flip axis is the core rotating component that realizes the flipping action, and cooperates with the high-precision tapered roller bearing to ensure the accuracy and stability of the flipping action.

[0040] The adjusting pad is installed on the supporting frame. By changing the thickness of the adjusting pad, the verticality of the turntable surface to the machine tool work surface is ensured after the turntable surface is flipped into place, thereby ensuring the positioning accuracy of the flipping operation and thus ensuring the processing accuracy.

[0041] The tensioning device consists of a tensioning cylinder, a disc spring, a rivet and a claw. The rivet is fixed to the support frame and the claw is fixed to the turning table. The tensioning cylinder provides hydraulic pressure to compress the disc spring to open the claw. When the turning table is in place, the hydraulic pressure is canceled and the rivet is tightened by the disc spring force, thereby fixing the turntable.

[0042] The support frame includes a vertical support frame, a horizontal support frame, and a flip support frame. When the turntable and the blades are in a vertical state, the vertical support frame and the flip support frame keep the mechanism stable; when in a horizontal state, the horizontal support frame and the flip support frame keep them stable; during the flipping process, the flip support frame and the back pressure of the hydraulic cylinder provide support.

[0043] Example 4: Figure 1 and Figure 2 As shown, a method for using a vertical and horizontal turning structure turntable includes the steps of controlling an electric control box: performing single-step operations of all actions, including forward and reverse rotation of the mechanism, tightening and loosening of the tensioning mechanism, floating of the cylinder, and emergency stop.

[0044] Forward flipping step: the blade flips from the clamping position to the processing position, that is, the blade is converted from a vertical state to a horizontal state. Two hydraulic cylinders provide thrust to push the flip table to move, driving the turntable and the workpiece to flip; the two hydraulic cylinders on the other side, under the action of the balance valve, provide sufficient back pressure according to the load changes during the flipping process, making the flipping process more uniform and smooth, reducing impact and vibration, and protecting the equipment.

[0045] Reverse flipping step: the blade flips from the processing position to the clamping position, that is, the blade is converted from a horizontal state to a vertical state. Two hydraulic cylinders provide thrust to push the flip table to move, driving the turntable and the workpiece to flip; the two hydraulic cylinders on the other side, under the action of the balance valve, provide sufficient back pressure according to the load changes during the flipping process, making the flipping process more uniform and smooth, reducing impact and vibration, and protecting the equipment.

[0046] Tightening and loosening steps of the tensioning mechanism: All tensioning mechanisms should be in a relaxed state before performing the flipping action. During the flipping process, keep the claw open. When the flip is in place, press the claw tightening button to tighten and fix the turntable and the workpiece. In this state, the workpiece can be clamped or processed.

[0047] Emergency stop procedure: A necessary button for all equipment. When an emergency occurs, press the emergency stop button and the workpiece and turntable will stay in the current position and wait for maintenance personnel to repair them before operating again.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turntable with a vertical and horizontal turning structure, characterized in that: It includes a mechanical structure and a hydraulic circuit. The cross-marking table of the mechanical structure is connected to the three-jaw chuck; the blade is connected to the turntable and the auxiliary support; the turntable is connected to the blade and the flip table; the first tensioning cylinder is connected to the flip table; the flip shaft is connected to the flip table and the flip support frame; the second tensioning cylinder is connected to the flip table; the first hydraulic cylinder is connected to the flip table and the base; the adjustment pad is connected to the vertical support frame and the horizontal support frame; the vertical support frame is connected to the base and the adjustment pad; the positioning block is connected to the base; the flip support frame is connected to the flip shaft and the base; the T-slot screw is connected to the base; the adjustment pad is connected to the base; the second hydraulic cylinder is connected to the base and the flip table; the horizontal support frame is connected to the adjustment pad and the base; the auxiliary support is connected to the blade, and the hydraulic circuit includes a hydraulic The main oil circuit, the flipping action branch and the tensioning action branch, the oil tank, the motor, the pump, the one-way valve, the overflow valve, the flipping branch / tensioning branch and the oil tank are connected in sequence to form the hydraulic main oil circuit, the oil tank, the motor, the pump, the one-way valve, the overflow valve, the flipping directional valve, the flipping balancing valve, the pressure reducing valve, the throttle valve, the cylinder floating solenoid directional valve, the one-way speed regulating valve, the pressure gauge, the explosion-proof valve and the hydraulic cylinder are connected in sequence to form the flipping action branch, and all the hydraulic components of the flipping action branch are connected in series, the oil tank, the motor, the pump, the one-way valve, the overflow valve, the tensioning and releasing directional valve, the pressure reducing valve, the one-way valve and the pulling claw are connected in sequence to form the tensioning action branch, and all the hydraulic components of the tensioning action branch are connected in series, and the accumulator is connected in parallel to the tensioning action branch before the pulling claw.

2. A method for using a turntable with a vertical and horizontal turning structure, characterized in that: It contains hydraulic drive steps and electric control box control steps to achieve safe and stable flipping of the turntable and workpiece in horizontal and vertical directions. The machining operator clamps the blade and flips it to the processing position electronically. The flip positioning accuracy is within 0.02mm, and processing is achieved with the cooperation of the three-jaw chuck, cross-scratching table and auxiliary support.

3. The method for using a vertical and horizontal turning structure turntable according to claim 2, characterized in that: Hydraulic driving step: The hydraulic driving step includes a hydraulic driving step, a flipping action driving step and a tensioning action driving step.

4. The method for using the vertical and horizontal turning structure turntable according to claim 2 is characterized in that , including the control steps of the electric control box: single-step operation of all actions, including forward and reverse rotation of the mechanism, tightening and loosening of the tensioning mechanism, floating of the cylinder, emergency stop, Forward flipping step: the blade flips from the clamping position to the processing position, that is, the blade is converted from a vertical state to a horizontal state, and two hydraulic cylinders provide thrust to push the flip table to move, driving the turntable and the workpiece to flip; The two hydraulic cylinders on the other side, under the action of the balance valve, provide sufficient back pressure according to the load changes during the flipping process, making the flipping process more uniform and smooth, reducing impact and vibration, and protecting the equipment. Reverse flipping step: the blade flips from the processing position to the clamping position, that is, the blade is converted from a horizontal state to a vertical state, and two hydraulic cylinders provide thrust to push the flip table to move, driving the turntable and the workpiece to flip; The two hydraulic cylinders on the other side, under the action of the balance valve, provide sufficient back pressure according to the load changes during the flipping process, making the flipping process more uniform and smooth, reducing impact and vibration, and protecting the equipment. The tightening and loosening steps of the tensioning mechanism: Before performing the flipping action, all the tensioning mechanisms should be in a relaxed state. During the flipping process, keep the claws open. When the flipping is in place, press the claw tightening button to tighten and fix the turntable and the workpiece. In this state, the workpiece can be clamped or processed. Emergency stop procedure: A necessary button for all equipment. When an emergency occurs, press the emergency stop button and the workpiece and turntable will stay in the current position and wait for maintenance personnel to repair them before operating again.

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