Working table for stone cutting machine and stone cutting machine

Abstract

A workbench for a stone cutting machine comprises a base, a loading platform and an oil cylinder. The loading platform is rotatably arranged on the base, and the oil cylinder is connected between the loading platform and the base to drive the loading platform to rotate to a target angle. The invention is characterized in that: it also comprises an oil circuit for supplying oil to the oil cylinder, and a deceleration valve is arranged on the oil circuit. When the loading platform rotates to a position close to the target angle, the deceleration valve can be triggered to reduce the output speed of the oil cylinder. In this way, the impact force when the loading platform rotates can be effectively reduced, and a buffer can be provided when the loading platform rotates to the target angle. Moreover, since the deceleration valve is not triggered until the loading platform rotates to a position close to the target angle, the rotation speed of the loading platform will not be too slow before the loading platform approaches the target angle, and the working efficiency of the workbench will not be greatly affected.

Description

Technical Field

[0001] The utility model relates to a working table for a stone cutting machine. Background Art

[0002] Usually, the stone cutting machine workbench needs to use limit blocks to position when turning. When the rotation speed is too fast, the impact is too great, which may easily cause damage to the limit blocks and even the workbench in the long run. Therefore, the workbench on the market uses the oil cylinder's own buffer and the throttle valve to adjust the oil flow to provide a certain deceleration for the turning of the workbench, thereby reducing the impact force when the workbench turns.

[0003] However, the cylinder's built-in buffer is often not ideal even when adjusted to the maximum value, and the throttle valve reduces the flow rate, which causes the workbench to rotate slower. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a workbench for a stone cutting machine which can effectively reduce the impact force and will not affect the normal rotation speed of the workbench.

[0005] The purpose of the utility model is achieved through the following technologies:

[0006] A workbench for a stone cutting machine comprises a base, a loading platform and an oil cylinder. The loading platform is rotatably arranged on the base, and the oil cylinder is connected between the loading platform and the base to drive the loading platform to rotate to a target angle. The invention is characterized in that: it also comprises an oil circuit for supplying oil to the oil cylinder, and a deceleration valve is arranged on the oil circuit. When the loading platform rotates to a position close to the target angle, the deceleration valve can be triggered to reduce the output speed of the oil cylinder. In this way, the impact force when the loading platform rotates can be effectively reduced, and a buffer can be provided when the loading platform rotates to the target angle. Moreover, since the deceleration valve is not triggered until the loading platform rotates to a position close to the target angle, the rotation speed of the loading platform will not be too slow before the loading platform approaches the target angle, and the working efficiency of the workbench will not be greatly affected.

[0007] The loading platform is provided with a first position-limiting member, and the base is provided with a second position-limiting member. The first position-limiting member can be blocked by the second position-limiting member so that the loading platform can be stopped at a target angle.

[0008] The deceleration valve is arranged on the base, and a triggering part is arranged on the loading platform. When the loading platform approaches the target angle, the triggering part can trigger the deceleration valve to reduce the output speed of the oil cylinder.

[0009] The oil cylinder includes a cylinder body, a piston and a piston rod. The piston is movably arranged in the cylinder body. One end of the piston rod is connected to the piston, and the other end extends out of the cylinder body. The piston divides the cylinder body into a first chamber and a second chamber. The oil circuit includes a first section connected to the first chamber and a second section connected to the second chamber. The deceleration valve is arranged on the first section and the second section. The oil circuit is divided into the first section and the second section and the deceleration valve is arranged on the first section and the second section, so that the output speed of the oil cylinder can be controlled by the deceleration valve at both ends of the oil cylinder, thereby better realizing the buffering when the worktable rotates.

[0010] The first section and the second section are both provided with throttle valves, which can control the flow rate through the throttle valves, and can further provide buffering for the rotation of the carrier in conjunction with the deceleration valve.

[0011] The oil circuit is also provided with a solenoid valve for controlling the on and off of the first section and the second section.

[0012] The solenoid valve is a three-position four-way solenoid valve, which has the characteristics of high flexibility and high efficiency and can realize rapid control of the on and off of the first section and the second section.

[0013] The deceleration valve includes a valve body and a valve stem. An oil passage for oil passage is formed in the valve body. The valve stem is telescopically arranged on the valve body. When the loading platform approaches the target angle, the valve stem can be compressed to squeeze the oil passage to reduce the output speed of the oil cylinder. In this way, before the first limit member contacts the second limit member, the valve stem can be compressed first to squeeze the oil passage to reduce the output speed of the oil cylinder and provide a buffer.

[0014] It is arranged that when the worktable rotates to 90%-95% of the target angle, the deceleration valve can be triggered to reduce the output speed of the cylinder. When the rotation of the worktable is in this interval, the deceleration effect can be well achieved. If it is lower than 90%, it may decelerate too early and cause the worktable to rotate too slowly, reducing work efficiency. If it is higher than 95%, the deceleration effect may be low and the impact force may be excessive because the deceleration valve does not work too late and the cylinder and throttle valve do not respond in time.

[0015] A stone cutter comprises a workbench for the stone cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model.

[0017] Figure 2 It is a front view of the utility model.

[0018] Figure 3 It is a side view of the utility model.

[0019] Figure 4 for Figure 1Enlarged view of part A.

[0020] Figure 5 for Figure 2 Magnified view of part B.

[0021] Figure 6 This is the oil circuit diagram of the utility model. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 6 As shown, a workbench for a stone cutting machine includes a base 1, a loading platform 2 and a cylinder 3. The loading platform 2 can be horizontally rotatably arranged on the base 1. The loading platform 2 can rotate between target angles. The target angle is specifically rotated to a first position and a second position. The rotation angle of the loading platform 2 in the first position is 0°, and the rotation angle of the loading platform 2 in the second position is 90°. The base 1 is composed of a seat body 11 and a middle frame 12 arranged on the seat body 11. The loading platform 2 is arranged on the middle frame 12, and a plurality of rollers 121 are arranged between the loading platform 2 and the middle frame 12. The rollers 121 and the loading platform 2 are in rolling contact, so that the loading platform 2 can rotate smoothly. A hinge 111 is arranged between the middle frame 12 and the base 1, so that the middle frame 12 and the base 1 can be flipped and connected.

[0023] A first limit member is provided on the loading platform 2, and a second limit member 5 is provided on the middle frame 12. The first limit member can be blocked by the second limit member 5 so that the loading platform 2 can be docked at the target angle. A limit base 21 is provided at the bottom of the loading platform 2. The limit base 21 includes a top plate 211 that is attached to and fixedly connected to the loading platform 2, a vertical plate 212 and a horizontal plate 213 connected to the top plate 211. The vertical plate 212 is arranged vertically to the horizontal plate 213, and the upper section of the vertical plate 212 is the first limit member.

[0024] The oil cylinder 3 is connected between the stage 2 and the middle frame 12 to drive the stage 2 to rotate to the target angle, and also includes an oil circuit for supplying oil to the oil cylinder 3. A deceleration valve 4 is arranged on the oil circuit. The deceleration valve 4 is a flow control valve that relies on the travel block (or cam) of the moving part of the actuator to push the valve core to move to change the size of the flow area of ​​the throttle port to control the flow size. Its speed conversion is reliable and can effectively reduce the impact during speed conversion. A trigger part is arranged on the stage 2, and the lower section of the vertical plate 212 is the trigger part. It is arranged so that when the stage 2 rotates to a point close to the target angle, the trigger part can trigger the deceleration valve 4 to reduce the output speed of the oil cylinder 3. This can effectively reduce the impact force when the stage 2 rotates, giving the stage 2 a rotation A buffer is provided when the stage 2 reaches the target angle, and because the deceleration valve 4 will not be triggered until the stage 2 is rotated to a position close to the target angle, the rotation speed of the stage 2 will not be too slow before the stage 2 approaches the target angle, and the working efficiency of the workbench will not be greatly affected. Specifically, when the stage 2 rotates to 90%-95% of the target angle, the deceleration valve 4 can be triggered to reduce the output speed of the cylinder 3. When the rotation of the stage 2 is in this range, the deceleration effect can be well achieved. If it is lower than 90%, it may decelerate too early and cause the stage 2 to rotate too slowly, thereby reducing the working efficiency. If it is higher than 95%, it may be because the deceleration valve 4 plays a deceleration effect too late, and the cylinder 3 and the throttle valve do not respond in time enough, resulting in a low deceleration effect and excessive impact force.

[0025] The second limiting member 5 is a fixing seat 51, a bolt 52 and a nut 53 provided on the middle frame 12. The nut 53 is fixedly provided on the side of the fixing seat 51. One end of the bolt 52 is threadedly engaged with the nut 53, and the bolt head at the other end extends laterally. When the stage 2 rotates, the first limiting member contacts the bolt head and is blocked to stop.

[0026] The deceleration valve 4 includes a valve body 41 and a valve stem 42. An oil passage for oil supply is formed in the valve body 41. The valve stem 42 is telescopically arranged on the valve body 41. When the stage 2 approaches the target angle, the valve stem 42 can be compressed by the trigger part to squeeze the oil passage to reduce the output speed of the oil cylinder 3. In this way, before the first limit member contacts the second limit member 5, the valve stem 42 can be compressed to squeeze the oil passage to reduce the output speed of the oil cylinder 3 and provide a buffer. A cam 43 is arranged at the front end of the valve stem 42. The cam 43 contacts the trigger part, which can reduce the friction between the trigger part and the valve stem 42 to a certain extent, making the valve stem 42 not easily damaged. In addition, the contact area between the trigger part and the cam 43 is small, and the pressure on the valve stem 42 can be increased during contact, so that the valve stem 42 can be better squeezed.

[0027] The oil cylinder 3 includes a cylinder body, a piston and a piston rod. The piston is movably arranged in the cylinder body. One end of the piston rod is connected to the piston, and the other end extends out of the cylinder body. The piston divides the cylinder body into a first chamber and a second chamber. The oil circuit includes a first section 31 connected to the first chamber and a second section 32 connected to the second chamber. A reduction valve 4 is arranged on the first section 31 and the second section 32. The oil circuit is divided into the first section 31 and the second section 32, and the reduction valve 4 is arranged on the first section 31 and the second section 32, so that the output speed of the oil cylinder 3 can be controlled by the reduction valve 4 at both ends of the oil cylinder 3, so that the buffering when the worktable 2 rotates can be better achieved, and the first section 31 and the second section 32 are both provided with a throttle valve 6, which can control the flow rate through the throttle valve 6, and cooperate with the reduction valve 4 to further provide buffering for the rotation of the worktable 2.

[0028] The oil circuit is also provided with a solenoid valve 7 for controlling the on and off of the first section 31 and the second section 32. The solenoid valve 7 is a three-position four-way solenoid valve 7. The three-position four-way solenoid valve 7 has the characteristics of high flexibility and efficiency, and can realize rapid control of the on and off of the first section 31 and the second section 32.

[0029] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. A workbench for a stone cutter, comprising a base, a loading platform, and a cylinder, wherein the loading platform is rotatably arranged on the base, and the cylinder is connected between the loading platform and the base to drive the loading platform to rotate to a target angle, characterized in that: It also includes an oil circuit for supplying oil to the oil cylinder. A deceleration valve is arranged on the oil circuit. When the loading platform rotates to a position close to the target angle, the deceleration valve can be triggered to reduce the output speed of the oil cylinder.

2. A workbench for a stone cutter according to claim 1, characterized in that: The loading platform is provided with a first position-limiting member, and the base is provided with a second position-limiting member. The first position-limiting member can be blocked by the second position-limiting member so that the loading platform can be stopped at a target angle.

3. A workbench for a stone cutter according to claim 1, characterized in that: The deceleration valve is arranged on the base, and a triggering part is arranged on the loading platform. When the loading platform approaches the target angle, the triggering part can trigger the deceleration valve to reduce the output speed of the oil cylinder.

4. A workbench for a stone cutter according to claim 1, characterized in that: The oil cylinder includes a cylinder body, a piston and a piston rod. The piston is movably arranged in the cylinder body. One end of the piston rod is connected to the piston, and the other end extends out of the cylinder body. The piston divides the cylinder body into a first chamber and a second chamber. The oil circuit includes a first section connected to the first chamber and a second section connected to the second chamber. The deceleration valve is arranged on the first section and the second section.

5. A workbench for a stone cutter according to claim 4, characterized in that: The first section and the second section are both provided with throttle valves.

6. A workbench for a stone cutter according to claim 4, characterized in that: The oil circuit is also provided with a solenoid valve for controlling the on and off of the first section and the second section.

7. A workbench for a stone cutter according to claim 6, characterized in that: The solenoid valve is a three-position four-way solenoid valve.

8. A workbench for a stone cutter according to claim 1, characterized in that: The deceleration valve includes a valve body and a valve stem. An oil passage for oil to pass through is formed in the valve body. The valve stem is telescopically arranged on the valve body. When the loading platform approaches the target angle, the valve stem can be compressed and squeezed into the oil passage to reduce the output speed of the oil cylinder.

9. A workbench for a stone cutter according to claim 1, characterized in that: It is configured that when the loading platform rotates to 90%-95% of the target angle, the deceleration valve can be triggered to reduce the output speed of the oil cylinder.

10. A stone cutting machine, characterized in that: A workbench for a stone cutting machine comprising the steps of any one of claims 1 to 9.

Images