Adjustable grabbing force of vertical car clamp

Abstract

This invention discloses an adjustable gripping force vertical lathe chuck, relating to the field of lathe technology. It includes a housing, within which a first hydraulic cylinder mechanism is fixedly connected. The first hydraulic cylinder mechanism has a limiting block mechanism. A second hydraulic cylinder mechanism is located within the first hydraulic cylinder mechanism, and a moving plate is fixedly connected to the end of the second hydraulic cylinder mechanism. A transmission mechanism is provided on both the first and second hydraulic cylinder mechanisms, and the transmission mechanism is fixedly connected to the limiting mechanism. A hydraulic drive mechanism is located within the housing, and a mounting mechanism is located on the moving plate. The mounting mechanism contains a chuck mechanism. This invention, by setting up a hydraulic drive mechanism, can drive the first and second hydraulic cylinder mechanisms, thereby enabling the chuck mechanism to move and clamp the workpiece. The limiting mechanism can limit the first hydraulic cylinder mechanism, allowing the second hydraulic cylinder mechanism to move independently for clamping.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lathe, in particular to a vertical lathe chuck capable of adjusting the gripping force. BACKGROUND

[0002] Vertical lathe is also known as vertical lathe. Vertical lathe is mainly used for machining large and heavy workpieces with large diameter and short length, and workpieces that are not easy to clamp on a horizontal lathe. If the rotation diameter meets the requirements, heavy workpieces cannot be clamped on a horizontal lathe. The self-weight of the workpiece affects the machining accuracy. The use of a vertical lathe can solve the above problems. Vertical lathes can be generally divided into single-column type and double-column type. Small vertical lathes are generally single-column type, and large vertical lathes are double-column type.

[0003] In the prior art, the position of the limiting ring on the movable clamping column is manually adjusted according to the size of the clamping chuck, and the limiting ring is fixed by a fastening bolt. The end of the fastening bolt is tightly attached to the movable clamping column. Under the action of friction, the limiting ring limits the movement of the movable clamping column. Then the user manually rotates the rotating shaft, the rotating shaft drives the first conical gear to rotate, and the second conical gear starts to rotate, thereby allowing the movable clamping column to move up and down in the threaded rod, facilitating clamping and fixing chucks of different sizes. However, the clamping pressure cannot be accurately controlled in the prior art, so there is a lot of room for improvement in the prior art. SUMMARY

[0004] The present application provides a vertical lathe chuck capable of adjusting the gripping force, which solves the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A vertical lathe chuck capable of adjusting the gripping force, comprising a housing, a first hydraulic cylinder mechanism fixedly connected in the housing, a limiting block mechanism provided on the first hydraulic cylinder mechanism, a second hydraulic cylinder mechanism provided in the first hydraulic cylinder mechanism, a movable plate fixedly connected to the end of the second hydraulic cylinder mechanism, a transmission mechanism provided on the first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism, a limiting mechanism fixedly connected to the transmission mechanism, a hydraulic drive mechanism provided in the housing, an installation mechanism provided on the movable plate, and a chuck mechanism provided in the installation mechanism.

[0007] As a preferred technical solution of the present application, a sliding groove is provided on the housing, the movable plate and the housing are slidingly connected, and the movable plate passes through the sliding groove.

[0008] As a preferred technical scheme of the present application, the first hydraulic cylinder mechanism comprises a first cylinder fixed in the shell, a first piston slidingly connected in the first cylinder, the first piston being fixedly connected with a second cylinder, the second cylinder penetrating through the first cylinder and being slidingly connected with the first cylinder.

[0009] As a preferred technical scheme of the present application, the limiting block mechanism comprises a first spring fixed on the first cylinder, an end of the first spring away from the first cylinder being fixedly connected with a spring mounting ring, the spring mounting ring being rotationally connected with a pull plate, the pull plate being fixedly connected with a limiting rod, a short slot and a long slot being formed on the first cylinder at positions corresponding to the limiting rod, the pull plate being fixedly connected with a sliding rod, the sliding rod penetrating through the first cylinder and being slidingly connected with the first cylinder, an end of the sliding rod away from the pull plate being fixedly connected with a limiting block.

[0010] As a preferred technical scheme of the present application, the second hydraulic cylinder mechanism comprises a second piston slidingly connected with the second cylinder, the second piston being fixedly connected with a sleeve, the sleeve penetrating through the second cylinder and being slidingly connected with the second cylinder.

[0011] As a preferred technical scheme of the present application, the transmission mechanism comprises a motor support fixed on the second cylinder, the motor support being fixedly connected with a motor, an output shaft of the motor being fixedly connected with a first rotating shaft, the first rotating shaft being rotationally connected with the sleeve, the first rotating shaft being fixedly connected with a first bevel gear, the first bevel gear being engaged with a second bevel gear, the second bevel gear being fixedly connected with a second rotating shaft, the second rotating shaft being rotationally connected with the second piston and the moving plate, the second rotating shaft being fixedly connected with a third bevel gear, the third bevel gear being engaged with a fourth bevel gear.

[0012] As a preferred technical scheme of the present application, the limiting mechanism comprises a first threaded rod fixedly connected with the fourth bevel gear, the first threaded rod being rotationally connected with a threaded rod seat, the threaded rod seat being fixedly connected with the second piston, the first threaded rod being threadedly connected with a threaded sleeve, the threaded sleeve penetrating through the second piston and being slidingly connected with the second piston, the inner side of the second cylinder being provided with a limiting groove.

[0013] As a preferred technical scheme of the present application, the hydraulic drive mechanism comprises a power element fixed in the shell, the power element being fixedly connected with a first hydraulic pipe and a control element, the control element being fixedly connected with a second hydraulic pipe in front of the first cylinder, the control element being fixedly connected with a third hydraulic pipe between the second cylinder.

[0014] As a preferred technical scheme of the present application, the mounting mechanism comprises a mounting slot provided on the moving plate, the moving plate being fixedly connected with a second spring, an end of the second spring away from the moving plate being fixedly connected with a mounting rod fixing plate, the mounting rod fixing plate being fixedly connected with a mounting rod, the mounting rod penetrating through the moving plate and being slidingly connected with the moving plate.

[0015] As a preferred technical scheme of the present application, the claw mechanism comprises a connecting rod arranged in the mounting groove, the connecting rod is fixedly connected with an adjusting frame, the adjusting frame is rotationally connected with a second threaded rod, the second threaded rod is fixedly connected with a rotating handle, the second threaded rod is threadedly connected with a lifting block, the lifting block is slidingly connected with the adjusting frame, the lifting block is fixedly connected with a claw, and the claw is provided with a pressure sensor.

[0016] The present application has the following advantages: the first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism can be driven by the hydraulic drive mechanism, the claw mechanism can be moved by the first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism, the workpiece can be clamped and fixed, the first hydraulic cylinder mechanism can be limited by the limiting mechanism, the second hydraulic cylinder mechanism can be independently moved and clamped, the claw mechanism can be installed by the mounting mechanism, and the workpiece at different height positions can be clamped and fixed by the claw mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the vertical lathe claw with adjustable grabbing force.

[0018] Figure 2 It is a structure schematic view of the vertical lathe claw with adjustable grabbing force. Figure 1 It is a local enlarged view of the A area in the middle.

[0019] Figure 3 It is a structure schematic view of the vertical lathe claw with adjustable grabbing force. Figure 1 It is a local enlarged view of the B area in the middle.

[0020] Figure 4 It is a structure schematic view of the claw mechanism in the vertical lathe claw with adjustable grabbing force.

[0021] In the figure: 1, shell; 2, first hydraulic cylinder mechanism; 201, first cylinder body; 202, first piston; 203, second cylinder body; 3, limit block mechanism; 301, first spring; 302, spring mounting ring; 303, pull plate; 304, limit rod; 305, short slot; 306, long slot; 307, sliding rod; 308, limit block; 4, second hydraulic cylinder mechanism; 401, second piston; 402, sleeve; 5, moving plate; 6, sliding groove; 7, transmission mechanism; 701, motor support; 702, motor; 703, first shaft; 704, first bevel gear; 705, second bevel gear; 706, second shaft; 707, third bevel gear; 708, fourth bevel gear; 8, limiting mechanism; 801, first threaded rod; 802, threaded rod seat; 803, threaded sleeve; 804, limit groove; 9, hydraulic drive mechanism; 901, power element; 902, first hydraulic pipe; 903, control element; 904, second hydraulic pipe; 905, third hydraulic pipe; 10, mounting mechanism; 1001, mounting slot; 1002, second spring; 1003, mounting rod fixed plate; 1004, mounting rod; 11, claw mechanism; 1101, connecting rod; 1102, adjusting frame; 1103, second threaded rod; 1104, rotating handle; 1105, lifting block; 1106, claw. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present application will be described hereinafter with reference to the accompanying drawings, in which, it should be understood that the preferred embodiments described herein are intended for the purpose of explanation only and are not intended to limit the present application. EMBODIMENT

[0023] Please refer to Figures 1-4 A vertical car claw with adjustable grabbing force, comprising a shell 1, a first hydraulic cylinder mechanism 2 is fixedly connected in the shell 1, a limit block mechanism 3 is arranged on the first hydraulic cylinder mechanism 2, a second hydraulic cylinder mechanism 4 is arranged in the first hydraulic cylinder mechanism 2, a moving plate 5 is fixedly connected to the tail end of the second hydraulic cylinder mechanism 4, a transmission mechanism 7 is arranged on the first hydraulic cylinder mechanism 2 and the second hydraulic cylinder mechanism 4, the transmission mechanism 7 is fixedly connected with a limiting mechanism 8, a hydraulic drive mechanism 9 is arranged in the shell 1, a mounting mechanism 10 is arranged on the moving plate 5, and a claw mechanism 11 is arranged in the mounting mechanism 10; the limit block mechanism 3 is used for limiting the first hydraulic cylinder mechanism 2, the transmission mechanism 7 is used for driving the limit block mechanism 8, the limit block mechanism 8 is used for limiting the second hydraulic cylinder mechanism 4, the first hydraulic cylinder mechanism 2 and the second hydraulic cylinder mechanism 4 are used for driving the moving plate 5 to move and clamp, the hydraulic drive mechanism 9 is used for driving the first hydraulic cylinder mechanism 2 or the second hydraulic cylinder mechanism 4, and the mounting mechanism 10 is used for mounting the claw mechanism 11.

[0024] The shell 1 is provided with a sliding slot 6, the moving plate 5 is slidably connected with the shell 1, and the moving plate 5 passes through the sliding slot 6. The first hydraulic cylinder mechanism 2 comprises a first cylinder body 201 fixed in the shell 1, a first piston 202 slidably connected in the first cylinder body 201, a second cylinder body 203 fixedly connected with the first piston 202, the second cylinder body 203 passing through the first cylinder body 201 and being slidably connected with the first cylinder body 201. The second hydraulic cylinder mechanism 4 comprises a second piston 401 slidably connected with the second cylinder body 203, a sleeve 402 fixedly connected with the second piston 401, the sleeve 402 passing through the second cylinder body 203 and being slidably connected with the second cylinder body 203.

[0025] The transmission mechanism 7 comprises a motor support 701 fixed on the second cylinder body 203, a motor 702 fixedly connected with the motor support 701, an output shaft of the motor 702 fixedly connected with a first rotating shaft 703, the first rotating shaft 703 rotatably connected with the sleeve 402, the first rotating shaft 703 fixedly connected with a first bevel gear 704, the first bevel gear 704 engaged with a second bevel gear 705, the second bevel gear 705 fixedly connected with a second rotating shaft 706, the second rotating shaft 706 rotatably connected with the second piston 401 and the moving plate 5, the second rotating shaft 706 fixedly connected with a third bevel gear 707, the third bevel gear 707 engaged with a fourth bevel gear 708. The limiting mechanism 8 comprises a first threaded rod 801 fixedly connected with the fourth bevel gear 708, the first threaded rod 801 rotatably connected with a threaded rod base 802, the threaded rod base 802 fixedly connected with the second piston 401, the first threaded rod 801 threadedly connected with a threaded sleeve 803, the threaded sleeve 803 passing through the second piston 401 and being slidably connected with the second piston 401, and the inside of the second cylinder body 203 is provided with a limiting slot 804. The hydraulic drive mechanism 9 comprises a power element 901 fixed in the shell 1, a first hydraulic pipe 902 and a control element 903 fixedly connected with the power element 901, a second hydraulic pipe 904 fixedly connected between the control element 903 and the first cylinder body 201, and a third hydraulic pipe 905 fixedly connected between the control element 903 and the second cylinder body 203. The mounting mechanism 10 comprises a mounting slot 1001 arranged on the moving plate 5, a second spring 1002 fixedly connected with the moving plate 5, an installation rod fixed plate 1003 fixedly connected with one end of the second spring 1002 away from the moving plate 5, an installation rod 1004 fixedly connected with the installation rod fixed plate 1003, the installation rod 1004 passing through the moving plate 5 and being slidably connected with the moving plate 5. The claw mechanism 11 comprises a connecting rod 1101 arranged in the mounting slot 1001, an adjusting frame 1102 fixedly connected with the connecting rod 1101, a second threaded rod 1103 rotatably connected with the adjusting frame 1102, a rotating handle 1104 fixedly connected with the second threaded rod 1103, a lifting block 1105 threadedly connected with the second threaded rod 1103, the lifting block 1105 slidably connected with the adjusting frame 1102, a claw 1106 fixedly connected with the lifting block 1105, and a pressure sensor arranged on the claw 1106.

[0026] Specifically, the motor 702 is started, the rotation of the output shaft of the motor 702 drives the first rotating shaft 703 to rotate, the rotation of the first rotating shaft 703 drives the first bevel gear 704 to rotate, the rotation of the first bevel gear 704 drives the second bevel gear 705 to rotate, the rotation of the second bevel gear 705 drives the second rotating shaft 706 to rotate, the rotation of the second rotating shaft 706 drives the third bevel gear 707 to rotate, the rotation of the third bevel gear 707 drives the fourth bevel gear 708 to rotate, the rotation of the fourth bevel gear 708 drives the first threaded rod 801 to rotate, the rotation of the first threaded rod 801 drives the threaded sleeve 803 to extend or retract, when the threaded sleeve 803 is inserted into the limiting groove 804, the second piston 401 is limited, at this time, the gas moving element 901 drives the hydraulic oil to enter the first cylinder 201 to drive the first piston 202 to move, at the same time, the second cylinder 203 and the sleeve 402 are driven to move, the moving plate 5 is driven to move, because F=P / S, because the pressure is constant, at this time, the area is larger, so the clamping force is smaller, the limiting of the second piston 401 is released, and the first piston 202 is limited, the area is smaller, so the clamping force is larger. Embodiment

[0027] Continuing to refer to Figures 1-4 In the embodiment of the present application, the limiting block mechanism 3 comprises a first spring 301 fixed on the first cylinder 201, a spring mounting ring 302 fixedly connected to the end of the first spring 301 away from the first cylinder 201, a pull plate 303 rotationally connected to the spring mounting ring 302, a limiting rod 304 fixedly connected to the pull plate 303, a short insertion slot 305 and a long insertion slot 306 formed on the first cylinder 201 corresponding to the limiting rod 304, a sliding rod 307 fixedly connected to the pull plate 303, the sliding rod 307 penetrating through the first cylinder 201 and being slidingly connected to the first cylinder 201, and a limiting block 308 fixedly connected to the end of the sliding rod 307 away from the pull plate 303.

[0028] In the implementation process of the present application, first, the shell 1 is installed on the vertical lathe, then the claw mechanism 11 is adjusted and controlled according to the different heights of the workpieces to be clamped, at this time, the workpieces can be placed on the shell 1, if necessary, the clamping pressure is reduced, the limiting mechanism 8 is driven by the driving transmission mechanism 7 to limit the second hydraulic cylinder mechanism 4, and the limiting of the first hydraulic cylinder mechanism 2 by the limiting block mechanism 3 is released, at this time, the hydraulic driving mechanism 9 is started, the first hydraulic cylinder mechanism 2 is driven by the hydraulic driving mechanism 9 to drive the moving plate 5 to move, and then the claw mechanism 11 is driven to move, so as to clamp and fix the workpieces.

[0029] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stand car claw with adjustable gripping force, comprising a shell, characterized in that, The first hydraulic cylinder mechanism is fixedly connected in the shell, a limiting block mechanism is arranged on the first hydraulic cylinder mechanism, a second hydraulic cylinder mechanism is arranged in the first hydraulic cylinder mechanism, a moving plate is fixedly connected to the second hydraulic cylinder mechanism, a transmission mechanism is arranged on the first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism, the transmission mechanism is fixedly connected with a limiting mechanism, a hydraulic drive mechanism is arranged in the shell, an installation mechanism is arranged on the moving plate, and a clamping jaw mechanism is arranged in the installation mechanism. The limiting block mechanism is used for limiting the first hydraulic cylinder mechanism, the transmission mechanism is used for driving the limiting block mechanism, the limiting block mechanism is used for limiting the second hydraulic cylinder mechanism, the first hydraulic cylinder mechanism and the second hydraulic cylinder mechanism are used for driving the moving plate to move and clamp, the hydraulic drive mechanism is used for driving the first hydraulic cylinder mechanism or the second hydraulic cylinder mechanism, and the installation mechanism is used for installing the clamping jaw mechanism. A sliding groove is arranged on the shell, the moving plate is slidably connected with the shell, and the moving plate passes through the sliding groove. The first hydraulic cylinder mechanism comprises a first cylinder body fixed in the shell, a first piston slidably connected in the first cylinder body, and a second cylinder body fixedly connected with the first piston, wherein the second cylinder body passes through the first cylinder body and is slidably connected with the first cylinder body. The limiting block mechanism comprises a first spring fixed on the first cylinder body, a spring mounting ring fixedly connected to one end of the first spring away from the first cylinder body, a pull plate rotatably connected with the spring mounting ring, a limiting rod fixedly connected with the pull plate, a short insertion slot and a long insertion slot formed on the first cylinder body and corresponding to the limiting rod, a slide rod fixedly connected with the pull plate, and a limiting block fixedly connected to one end of the slide rod away from the pull plate. The second hydraulic cylinder mechanism comprises a second piston slidably connected with the second cylinder body, and a sleeve fixedly connected with the second piston, wherein the sleeve passes through the second cylinder body and is slidably connected with the second cylinder body.

2. The adjustable gripping force degree of a vertical car claw according to claim 1, characterized in that, The transmission mechanism comprises a motor bracket fixed on the second cylinder body, a motor fixedly connected with the motor bracket, a first rotating shaft fixedly connected with an output shaft of the motor, the first rotating shaft and the sleeve being rotatably connected, a first bevel gear fixedly connected with the first rotating shaft, the first bevel gear being engaged with a second bevel gear, a second rotating shaft fixedly connected with the second bevel gear, the second rotating shaft being rotatably connected with the second piston and the moving plate, a third bevel gear fixedly connected with the second rotating shaft, and a fourth bevel gear engaged with the third bevel gear.

3. The adjustable gripping force vertical car clamp of claim 2, wherein, The limiting mechanism comprises a first threaded rod fixedly connected with the fourth bevel gear, a threaded rod seat rotatably connected with the first threaded rod, the threaded rod seat and the second piston being fixedly connected, the first threaded rod being threadedly connected with a threaded sleeve, the threaded sleeve passing through the second piston and being slidably connected with the second piston, and a limiting groove being arranged on the inner side of the second cylinder body.

4. The adjustable gripping force vertical car clamp of claim 3, wherein, The hydraulic drive mechanism comprises a power element fixed in the shell, a first hydraulic pipe and a control element fixedly connected with the power element, a second hydraulic pipe fixedly connected between the control element and the first cylinder body, and a third hydraulic pipe fixedly connected between the control element and the second cylinder body.

5. The adjustable gripping force vertical car clamp of claim 1, wherein, The installation mechanism comprises an installation slot arranged on the moving plate, a second spring fixedly connected with the moving plate, an installation rod fixed plate fixedly connected to one end of the second spring away from the moving plate, an installation rod fixedly connected with the installation rod fixed plate, and the installation rod passing through the moving plate and being slidably connected with the moving plate.

6. The adjustable gripping force vertical car clamp of claim 5, wherein, The claw mechanism comprises a connecting rod arranged in the mounting groove, the connecting rod is fixedly connected with an adjusting frame, the adjusting frame is rotationally connected with a second threaded rod, the second threaded rod is fixedly connected with a rotating handle, the second threaded rod is threadedly connected with a lifting block, the lifting block is slidingly connected with the adjusting frame, the lifting block is fixedly connected with a claw, and a pressure sensor is arranged on the claw.

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