Turnover type clamp of machining center

Abstract

The utility model relates to the technical field of workpiece machining, in particular to an overturning type clamp of a machining center, which comprises a machining table and a clamp frame used for clamping a workpiece, a guide frame is fixedly mounted on the machining table, a sliding block is sleeved on the guide frame in a sliding manner, a second hydraulic cylinder is fixedly mounted on the sliding block, and the second hydraulic cylinder is fixedly mounted on the clamp frame. The output end of the second hydraulic cylinder is fixedly connected with a supporting end, a driven shaft is rotationally installed at the supporting end, the clamp frame is arranged on the driven shaft, and a rotating structure for driving the driven shaft to rotate is installed at the supporting end. The distance between the clamp frame and the machining table can be adjusted through movement of the sliding block, the driven shaft can drive the clamp frame and a workpiece to rotate when rotating, and then the machining face of the workpiece can be rapidly adjusted; the abutting plates are moved to the two sides of the moving frame by drawing the limiting frame, the workpiece can be supported from the bottom position through the moving frame and the abutting plates, and then the workpiece can be stably machined.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece processing technical field especially relates to a turnover fixture of machining center. BACKGROUND

[0002] The machining center is developed from numerical control milling machine, and the machining center has the ability of automatic exchange of machining tools, and can process various planes, inclined planes, grooves and drill holes, and realizes various processing functions.

[0003] When the workpiece is processed on the machining center, the workpiece is positioned by the clamp, at present, the clamp is mostly fixedly installed at both sides of the machining table, so that the gap between the clamp and the machining table is limited, which makes the workpiece unable to rotate automatically under the traction of the clamp, and thus manual overturning is needed, further increasing the working strength of the operator; after the clamp clamps the workpiece from both sides, the middle end of the workpiece is in a suspended state, and the pressure on the middle end of the workpiece increases gradually during processing, so that the workpiece is prone to deformation and fracture during processing, and thus stable processing of the workpiece is difficult to guarantee. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem that the clamp cannot overturn the workpiece in the prior art, and provides a turnover fixture of machining center.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A turnover fixture of machining center, comprising a machining table and a clamp frame for clamping a workpiece, a guide frame is fixedly installed on the machining table, a sliding block is slidably sleeved on the guide frame, a hydraulic cylinder two is fixedly installed on the sliding block, a support end is fixedly connected to the output end of the hydraulic cylinder two, a driven shaft is rotatably installed on the support end, a frame is fixedly installed on the driven shaft, an installation rod is installed in the frame, the clamp frame is arranged on the installation rod, a rotating structure for driving the driven shaft to rotate is installed on the support end, and a supporting structure for supporting the workpiece from the bottom is installed on the machining table.

[0007] Preferably, the guide frame is a back-shaped structure, a hydraulic cylinder one connected with the sliding block is fixedly installed on the guide frame, and the guide frame is vertically arranged at both sides of the machining table.

[0008] Preferably, the rotating structure comprises a motor fixedly installed on the support end, and a rotating shaft in transmission connection with the driven shaft is fixedly connected to the output end of the motor.

[0009] Preferably, the driven shaft and the rotating shaft are horizontally arranged from top to bottom, and gear one and gear two in meshing connection are fixedly installed on the rotating shaft and the driven shaft respectively.

[0010] Preferably, the support structure comprises a telescopic rod fixedly installed in the machining table, and a moving frame is fixedly connected to the output end of the telescopic rod, a guide rod is fixedly installed in the moving frame, and a moving plate is slidably sleeved on the guide rod, and a contact plate that movably abuts against the workpiece is integrally connected to the moving plate.

[0011] Preferably, the moving frame is horizontally arranged below the workpiece, the moving plate is horizontally arranged at both sides of the moving frame, a limiting frame connected with the moving plate is slidably sleeved on the moving frame, the limiting frame is a T-shaped structure, and a fixing bolt connected with the moving frame is threadedly connected to the limiting frame.

[0012] Preferably, the clamping frame and the mounting rod extend to one side of the frame, the clamping frame is a U-shaped or arc-shaped structure matched with the workpiece, a pressing plate movably abutting against the mounting rod is pin shaft installed in the frame, a positioning block extending into the mounting rod is fixedly installed on the pressing plate, a spring is welded between the pressing plate and the frame, a clamping ring for clamping the pressing plate is installed on the frame, the pressing plate is vertically arranged at both sides of the mounting rod, the clamping ring is a concave structure, and a locking bolt connected with the frame is threadedly connected to the clamping ring.

[0013] Compared with the prior art, the machining center's turnover clamp has the following advantages:

[0014] 1、The present utility model discloses a machining center's turnover clamp, which comprises a frame, a workpiece, a driving shaft, a clamping frame, a mounting rod, a sliding block, a telescopic rod, a moving frame, a guide rod, a moving plate, a contact plate and a limiting frame.

[0015] 2、The present utility model discloses a machining center's turnover clamp, which comprises a frame, a workpiece, a driving shaft, a clamping frame, a mounting rod, a sliding block, a telescopic rod, a moving frame, a guide rod, a moving plate, a contact plate and a limiting frame. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure diagram of the machining center's turnover clamp is provided for the present utility model;

[0017] Figure 2 A structure diagram of the machining center's turnover clamp is provided for the present utility model;

[0018] Figure 3 A structure diagram of the machining center's turnover clamp is provided for the present utility model;

[0019] Figure 4 A structure diagram of the machining center's turnover clamp is provided for the present utility model;

[0020] Figure 5The utility model provides a kind of frame schematic diagram of turnover fixture of machining center proposed by the utility model;

[0021] Figure 6 The utility model provides a kind of frame sectional view of turnover fixture of machining center proposed by the utility model.

[0022] In the drawing: 1, processing table;2, fixture frame;3, guide frame;4, sliding block;5, hydraulic cylinder one;6, hydraulic cylinder two;7, support end;8, driven shaft;9, motor;10, rotating shaft;11, gear one;12, gear two;13, telescopic rod;14, moving frame;15, guide rod;16, moving plate;17, abutting plate;18, limiting frame;19, frame;20, mounting rod;21, pressing plate;22, positioning block;23, spring;24, clamp ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Referring to Figures 1-6 A kind of turnover fixture of machining center, including processing table 1 and the fixture frame 2 for clamping workpiece.

[0025] Guide frame 3 is fixedly installed on processing table 1, and sliding block 4 is slidably arranged on guide frame 3, guide frame 3 is back structure, and hydraulic cylinder one 5 connected with sliding block 4 is fixedly installed on guide frame 3, guide frame 3 realizes the guiding effect of sliding block 4, and the output end of hydraulic cylinder one 5 can drive sliding block 4 to slide in guide frame 3, to adjust the spacing between fixture frame 2 and processing table 1.

[0026] Guide frame 3 is vertically arranged at the position of both sides of processing table 1, hydraulic cylinder two 6 is fixedly installed on sliding block 4, and support end 7 is fixedly connected to the output end of hydraulic cylinder two 6, driven shaft 8 is rotatably installed on support end 7, frame 19 is fixedly installed on driven shaft 8, and mounting rod 20 is installed in frame 19, fixture frame 2 is arranged on mounting rod 20, and hydraulic cylinder two 6 output end drives support end 7, driven shaft 8 and fixture frame 2 to move horizontally, so that fixture frame 2 processes workpiece from both sides, to quickly limit workpiece, and rotating structure for driving driven shaft 8 to rotate is installed on support end 7.

[0027] The rotating structure comprises a motor 9 fixedly installed on the supporting end 7, and the output end of the motor 9 is fixedly connected with a rotating shaft 10 in transmission connection with the driven shaft 8, the driven shaft 8 and the rotating shaft 10 are horizontally arranged from top to bottom, and the rotating shaft 10 and the driven shaft 8 are respectively fixedly installed with meshed gears one 11 and gears two 12, the gears one 11 and the gears two 12 are straight gears, so that the rotating shaft 10 and the driven shaft 8 can rotate in opposite directions, and the driven shaft 8 can drive the clamp frame 2 and the workpiece to rotate, thereby adjusting the machining surface of the workpiece.

[0028] The machining table 1 is provided with a supporting structure for supporting the workpiece from the bottom.

[0029] The supporting structure comprises a telescopic rod 13 fixedly installed in the machining table 1, and the output end of the telescopic rod 13 is fixedly connected with a moving frame 14, the moving frame 14 is fixedly installed with a guide rod 15, and the guide rod 15 is slidably sleeved with a moving plate 16, and the moving plate 16 is integrally connected with a contact plate 17 in movable abutment with the workpiece, the guide rod 15 guides the moving plate 16 through the moving frame 14, thereby limiting the moving direction of the moving plate 16.

[0030] The moving frame 14 is horizontally arranged below the workpiece, the moving plate 16 is horizontally arranged on both sides of the moving frame 14, and the moving frame 14 is slidably sleeved with a limiting frame 18 connected with the moving plate 16, according to the description Figure 4 , the moving frame 14 is provided with a long hole for guiding the limiting frame 18, the limiting frame 18 is a T-shaped structure, and the limiting frame 18 is threadedly connected with a fixing bolt connected with the moving frame 14, by extracting the moving plate 16, the contact plate 17 is moved to the both ends of the moving frame 14, the output end of the telescopic rod 13 is extended to drive the moving frame 14 and the contact plate 17 to move upwards, so that the moving frame 14 and the contact plate 17 can support the workpiece from the bottom, thereby ensuring the stability of the workpiece.

[0031] The clamp frame 2 and the mounting rod 20 extend to one side position outside the frame 19, the clamp frame 2 is a T-shaped or arc-shaped structure matched with the workpiece, by setting the clamp frame 2 as a T-shaped or arc-shaped structure matched with the workpiece, not only the clamp frame 2 can clamp workpieces of different specifications, but also increase the contact degree of the clamp frame 2 and the workpiece.

[0032] The frame 19 is provided with a pressure plate 21 in movable abutment with the mounting rod 20, and the pressure plate 21 is fixedly installed with a positioning block 22 extending into the mounting rod 20, and the pressure plate 21 and the frame 19 are welded with a spring 23, according to the description Figure 6As shown, when the mounting rod 20 extends into the frame 19, the pressing plates 21 clamp the mounting rod 20 from both sides under the action of the spring 23, the positioning blocks 22 are extended into the mounting rod 20 by the pressing plates 21, and the mounting rod 20 is convenient to install.

[0033] The clamping ring 24 is installed on the frame 19 to clamp the pressing plates 21, the pressing plates 21 are vertically arranged at both sides of the mounting rod 20, the clamping ring 24 is a concave structure, and the locking bolt connected with the frame 19 is threadedly connected with the clamping ring 24.

[0034] It should be noted that the specific type and size of the hydraulic cylinder one 5, the hydraulic cylinder two 6, the motor 9 and the telescopic rod 13 need to be determined according to the actual size of the device, and the specific selection calculation method adopts the existing technology in the art, so it is not described here.

[0035] The function principle of the utility model can be described as follows:

[0036] According to the specification of the workpiece, the clamp frame 2 is selected, the mounting rod 20 provided with the clamp frame 2 is extended into the frame 19, the spring 23 is stressed to clamp the mounting rod 20 from both sides by the pressing plates 21, the clamping ring 24 is pressed, the inner wall of the clamping ring 24 can press the two pressing plates 21, and the locking bolt is used to connect the clamping ring 24 and the frame 19;

[0037] The output end of the hydraulic cylinder two 6 drives the driven shaft 8 and the clamp frame 2 to move, so that the clamp frame 2 clamps the workpiece from both sides;

[0038] The limiting frame 18 is manually pulled to drive the sliding plate 16 to slide on the guide rod 15, the fixing bolt is used to connect the limiting frame 18 and the moving frame 14, and the sliding plate 16 drives the abutting plate 17 to move to both sides of the moving frame 14;

[0039] The output end of the telescopic rod 13 drives the moving frame 14 to move upwards, so that the moving frame 14 and the abutting plate 17 can support the workpiece from the bottom;

[0040] When the other side of the workpiece needs to be machined, the clamp frame 2 returns to the initial position, the output end of the hydraulic cylinder one 5 drives the sliding block 4 to slide in the guide frame 3, so that the clamp frame 2 is away from the machining table 1;

[0041] The motor 9 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the driven shaft 8 to rotate through the meshing connection of the gear one 11 and the gear two 12, the driven shaft 8 drives the clamp frame 2 and the workpiece to rotate, the workpiece is processed to make the workpiece upward, the output end of the telescopic rod 13 is retracted to drive the sliding block 4, the clamp frame 2 and the workpiece to move downward, and the workpiece corresponds to the moving frame 14 and the abutting plate 17.

[0042] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A turnover fixture of a machining center comprising a machining table (1) and a fixture frame (2) to clamp a workpiece, characterized in that, The processing table (1) is fixedly installed with a guide frame (3), and the guide frame (3) is slidably sleeved with a sliding block (4), the sliding block (4) is fixedly installed with a hydraulic cylinder (6), and the output end of the hydraulic cylinder (6) is fixedly connected with a support end (7), the support end (7) is rotatably installed with a driven shaft (8), the driven shaft (8) is fixedly installed with a frame (19), and the frame (19) is installed with a mounting rod (20), the clamp frame (2) is arranged on the mounting rod (20), and the support end (7) is installed with a rotating structure for driving the rotation of the driven shaft (8), and the processing table (1) is installed with a supporting structure for supporting the workpiece from the bottom.

2. The turnover fixture of a machining center according to claim 1, characterized in that, The guide frame (3) is a back type structure, and the guide frame (3) is fixedly installed with a hydraulic cylinder (5) connected with the sliding block (4), and the guide frame (3) is vertically arranged on both sides of the processing table (1).

3. The turnover fixture of a machining center according to claim 1, characterized in that, The rotating structure includes a motor (9) fixedly installed on the support end (7), and the output end of the motor (9) is fixedly connected with a rotating shaft (10) in transmission connection with the driven shaft (8).

4. A turnover fixture for a machining center according to claim 3, characterized in that, The driven shaft (8) and the rotating shaft (10) are horizontally arranged from top to bottom, and the rotating shaft (10) and the driven shaft (8) are respectively fixedly installed with meshing connected gear one (11) and gear two (12).

5. The turnover fixture of a machining center according to claim 1, characterized in that, The supporting structure includes a telescopic rod (13) fixedly installed in the processing table (1), and the output end of the telescopic rod (13) is fixedly connected with a moving frame (14), the moving frame (14) is fixedly installed with a guide rod (15), and the guide rod (15) is slidably sleeved with a moving plate (16), and the moving plate (16) is integrally connected with a contact plate (17) movably abutting against the workpiece.

6. A turnover fixture for a machining center according to claim 5, characterized in that, The moving frame (14) is horizontally arranged below the workpiece, the moving plate (16) is horizontally arranged on both sides of the moving frame (14), the moving frame (14) is slidably sleeved with a limiting frame (18) connected with the moving plate (16), the limiting frame (18) is a T-shaped structure, and the limiting frame (18) is threadedly connected with a fixing bolt connected with the moving frame (14).

7. The turnover fixture of a machining center according to claim 1, characterized in that, The clamp frame (2) and the mounting rod (20) extend to one side of the frame (19), the clamp frame (2) is a type of and arc structure matched with the workpiece, the frame (19) is pin shaft installed with a pressing plate (21) movably abutting against the mounting rod (20), and the pressing plate (21) is fixedly installed with a positioning block (22) extending into the mounting rod (20), the spring (23) is welded between the pressing plate (21) and the frame (19), the frame (19) is installed with a clamp ring (24) for clamping the pressing plate (21), the pressing plate (21) is vertically arranged on both sides of the mounting rod (20), the clamp ring (24) is a concave structure, and the clamp ring (24) is threadedly connected with a locking bolt connected with the frame (19).

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