Tool clamp for large disc-shaped workpiece

Abstract

The utility model provides a work fixture for a large disc-shaped workpiece, which relates to the technical field of work fixtures and comprises a base station, a rotating frame, a sliding rail and a sliding block, a clamping mechanism is arranged on the sliding block, and a rotating mechanism is arranged in the base station; the driving motor, the two-way lead screw and the sliding blocks are matched, the two sliding blocks can be driven to move in the sliding rails in different directions at the same time, the two sliding blocks can drive the two connecting frames to get close to each other, and when the two connecting frames get close to the large disc-shaped workpiece, the rolling wheels are attached to the outer wall of the large disc-shaped workpiece firstly; when the rotating arm rotates, the hinged frame and the rotating arm are driven to rotate to adjust the self position, so that the roller is matched with the radian of the outer side of the large disc-shaped workpiece, then the threaded rod is screwed to move towards the rotating arm, one end of the threaded rod is used for tightly jacking the rotating arm, and the positions of the rotating arm, the hinged frame and the roller can be locked; and the outer side of the large disc-shaped workpiece is clamped by the rollers.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a tooling fixture used for a large disc-shaped workpiece. Background Art

[0002] Turning is one of the basic machining processes in the field of machining. The main process is to clamp the workpiece to be machined on the spindle of the lathe. The rotation of the spindle drives the workpiece to be machined, so that relative motion is generated between the tool and the workpiece to be machined. Then the tool cuts the workpiece to be machined, changing the size and shape of the workpiece to be machined. The first step of turning is to clamp the workpiece to the spindle of the lathe. This step is the key step to achieve sufficient precision of the machined workpiece.

[0003] Most large disc-shaped workpieces need to be processed by floor-type lathes, and the general tooling fixtures in the existing technology only clamp the workpiece in opposite directions by two arc-shaped blocks. There may be a gap between the inner side and the outer wall of the large disc-shaped workpiece, which makes it difficult to clamp the large disc-shaped workpiece. Even if it can be clamped and positioned, the workpiece cannot achieve sufficient processing accuracy. Therefore, the utility model proposes a tooling fixture for large disc-shaped workpieces to solve the above problem. Utility Model Content

[0004] In response to the above problems, the utility model proposes a tooling fixture for large disc-shaped workpieces to solve the problem in the prior art that large disc-shaped workpieces are clamped only by arc blocks, and there may be a gap between the inner side and the outer wall of the large disc-shaped workpiece, making it difficult to clamp the large disc-shaped workpiece.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a tooling fixture for large disc-shaped workpieces, including a base, a rotating frame, a slide rail and a slider, the top of the base is rotatably connected to the rotating frame, the top of the rotating frame is fixedly connected to the slide rail, the two ends of the slide rail are symmetrically provided with sliders, the slider is provided with a clamping mechanism, and the inside of the base is provided with a rotating mechanism.

[0006] Further improvements are: the clamping mechanism includes a rotating arm, an articulated frame, a roller, a positioning block and a threaded rod, the top of the slider is fixedly connected to the connecting frame, the two ends of the connecting frame are symmetrically hinged with rotating arms, one end of the rotating arm is hinged to the articulated frame, the two ends of the articulated frame are symmetrically hinged with rollers, and the two ends of the connecting frame are also symmetrically provided with positioning blocks, and the internal threads of the positioning blocks are connected to the threaded rod.

[0007] A further improvement is that: a movable groove matching the rotating arm is provided inside the positioning block, the structure of the articulated frame is set to be L-shaped, and one end of the threaded rod is in close contact with the outer wall of the rotating arm.

[0008] A further improvement is that the shape of the slider is set to be a rectangular block structure, the bottom end of the slider is slidably connected to the inside of the slide rail, and the slide rail is provided with a moving mechanism that matches the slider.

[0009] Further improvements are: the moving mechanism includes a driving motor and a bidirectional screw, the top of the slide rail is rotatably connected to the bidirectional screw, one end of the slide rail is fixedly installed with a driving motor, the output end of the driving motor is fixedly connected to one end of the bidirectional screw, and the two ends of the bidirectional screw respectively pass through the interior of the two sliders and are threadedly connected to them.

[0010] A further improvement is that a support frame is provided on the top of the rotating frame, the support frame includes a support table and support feet, two groups of support feet are symmetrically fixedly connected to the bottom of the support frame, and the height of the top of the support frame is equal to the height of the bottom of the connecting frame.

[0011] Further improvements are: the rotating mechanism includes a worm wheel, a worm and a rotating motor, the outer side of the rotating frame is fixedly connected to the worm wheel, the inner side of the base is rotatably connected to the worm, the worm and the outer wall of the worm wheel are engaged with each other, the outer side of the base is fixedly installed with a rotating motor, and the output end of the rotating motor is fixedly connected to one end of the worm.

[0012] The beneficial effects of the present invention are as follows: the driving motor, the bidirectional screw rod and the slider cooperate to drive the two sliders to move simultaneously in different directions inside the slide rail, and the two sliders can drive the two connecting frames to approach each other. When the two connecting frames approach each other toward the large disc-shaped workpiece, the roller first fits the outer wall of the large disc-shaped workpiece, and also drives the articulated frame and the rotating arm to rotate and adjust their own positions, so as to make the roller fit the curvature of the outer side of the large disc-shaped workpiece, and then twist the threaded rod to move in the direction of the rotating arm, and use one end of the threaded rod to tighten the rotating arm, so that the position of the rotating arm, the articulated frame and the roller can be locked, so that the roller clamps the outer side of the large disc-shaped workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the present utility model;

[0015] Figure 3 This is a schematic diagram of the rotating mechanism structure of the utility model;

[0016] Figure 4 For this utility model Figure 2 A partial enlarged view of point A.

[0017] Among them: 1. Base; 2. Rotating frame; 3. Slide rail; 4. Support frame; 5. Slider; 6. Connecting frame; 7. Rotating arm; 8. Articulated frame; 9. Roller; 10. Positioning block; 11. Drive motor; 12. Bidirectional screw; 13. Worm gear; 14. Worm; 15. Rotating motor; 16. Threaded rod. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0019] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes a tooling fixture for large disc-shaped workpieces, including a base 1, a rotating frame 2, a slide rail 3 and a slider 5. The top of the base 1 is rotatably connected to the rotating frame 2, and the top of the rotating frame 2 is fixedly connected to the slide rail 3. Slide rails 5 are symmetrically provided at both ends of the slide rail 3. A clamping mechanism is provided on the slider 5. A rotating mechanism is provided inside the base 1. The large disc-shaped workpiece is placed in the middle of the clamping mechanism. The clamping mechanism can clamp both sides of the large disc-shaped workpiece, and its inner side is tightly fitted with the outer wall of the large disc-shaped workpiece, so that the clamping mechanism can completely clamp the large disc-shaped workpiece, so that the large disc-shaped workpiece is fixed on the rotating frame 2. The rotating mechanism drives the large disc-shaped workpiece to rotate through the rotating frame 2 to adjust the processing angle of the large disc-shaped workpiece.

[0020] The shape of the slider 5 is set as a rectangular block structure, and the bottom end of the slider 5 is slidably connected to the inside of the slide rail 3, and the slide rail 3 is provided with a moving mechanism matching the slider 5. The moving mechanism includes a driving motor 11 and a bidirectional screw rod 12, and the top of the slide rail 3 is rotatably connected to the bidirectional screw rod 12, and one end of the slide rail 3 is fixedly installed with a driving motor 11. The output end of the driving motor 11 is fixedly connected to one end of the bidirectional screw rod 12, and the two ends of the bidirectional screw rod 12 respectively pass through the interior of the two sliders 5 and are threadedly connected thereto. The driving motor 11 can drive the bidirectional screw rod 12 to rotate inside the slide rail 3, and the bidirectional screw rod 12 is threadedly matched with the slider 5, and the slide rail 3 limits the moving trajectory of the slider 5, so as to drive the two sliders 5 to move in different directions at the same time inside the slide rail 3. The two sliders 5 can drive the two connecting frames 6 to move closer to or away from each other, and the connecting frame 6 can drive the clamping mechanism to move closer to each other to clamp the large disc-shaped workpiece, or drive the clamping mechanism away from the large disc-shaped workpiece to take it out from the top of the rotating frame 2.

[0021] The clamping mechanism includes a rotating arm 7, an articulated frame 8, a roller 9, a positioning block 10 and a threaded rod 16. The top of the slider 5 is fixedly connected to the connecting frame 6. The two ends of the connecting frame 6 are symmetrically hinged with the rotating arm 7. One end of the rotating arm 7 is hinged to the articulated frame 8. The two ends of the articulated frame 8 are symmetrically hinged with rollers 9. The two ends of the connecting frame 6 are also symmetrically provided with positioning blocks 10. The internal thread of the positioning block 10 is connected to the threaded rod 16. The interior of the positioning block 10 is provided with a movable groove matching the rotating arm 7. The structure of the connecting frame 8 is set to be L-shaped, and one end of the threaded rod 16 is fitted and connected to the outer wall of the rotating arm 7. When the two connecting frames 6 approach each other toward the large disc-shaped workpiece, the roller 9 first fits against the outer wall of the large disc-shaped workpiece, and also drives the articulated frame 8 and the rotating arm 7 to rotate and adjust their own positions, so that the roller 9 fits the curvature of the outer side of the large disc-shaped workpiece, and then the threaded rod 16 is twisted to move in the direction of the rotating arm 7, and the rotating arm 7 is tightened with one end of the threaded rod 16, so that the position of the rotating arm 7, the articulated frame 8 and the roller 9 can be locked.

[0022] A support frame 4 is provided on the top of the rotating frame 2. The support frame 4 includes a support table and support feet. Two sets of support feet are symmetrically fixedly connected to the bottom of the support frame 4. The height of the top of the support frame 4 is equal to the height of the bottom of the connecting frame 6. The support frame 4 is set on the top of the rotating frame 2. The rotating frame 2 can be used to support large disc-shaped workpieces.

[0023] The rotating mechanism includes a worm gear 13, a worm 14 and a rotating motor 15. The outer side of the rotating frame 2 is fixedly connected to the worm gear 13, and the inner side of the base 1 is rotatably connected to the worm gear 14. The worm gear 14 is engaged with the outer wall of the worm gear 13. The outer side of the base 1 is fixedly installed with a rotating motor 15. The output end of the rotating motor 15 is fixedly connected to one end of the worm gear 14. The rotating motor 15 can drive the worm gear 14 to rotate inside the base 1. The worm gear 14 is engaged with the outer wall of the worm gear 13. The rotating motor 15 can synchronously drive the worm gear 13 to rotate. The worm gear 13 is fixed to the rotating frame 2 as a whole, so that the rotating frame 2 can rotate on the top of the base 1. The large disc-shaped workpiece is fixed on the top of the rotating frame 2, which can drive the large disc-shaped workpiece to rotate and adjust the processing angle.

[0024] The fixture of the large disc-shaped workpiece, the driving motor 11, the bidirectional screw 12 and the slider 5 cooperate to drive the two sliders 5 to move in different directions at the same time inside the slide rail 3, and the two sliders 5 can drive the two connecting frames 6 to approach each other. When the two connecting frames 6 approach each other toward the large disc-shaped workpiece, the roller 9 first fits with the outer wall of the large disc-shaped workpiece, and also drives the articulated frame 8 and the rotating arm 7 to rotate and adjust their own position, so that the roller 9 fits the curvature of the outer side of the large disc-shaped workpiece, and then the threaded rod 16 is twisted to move in the direction of the rotating arm 7, and the rotating arm 7 is tightened with one end of the threaded rod 16, so that the position of the rotating arm 7, the articulated frame 8 and the roller 9 can be locked, so that the roller 9 clamps the outer side of the large disc-shaped workpiece.

[0025] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for a large disc-shaped workpiece, comprising a base (1), a rotating frame (2), a slide rail (3) and a slider (5), characterized in that: The top of the base (1) is rotatably connected to a rotating frame (2), the top of the rotating frame (2) is fixedly connected to a slide rail (3), sliders (5) are symmetrically provided at both ends of the slide rail (3), a clamping mechanism is provided on the slider (5), and a rotating mechanism is provided inside the base (1); The clamping mechanism comprises a rotating arm (7), an articulated frame (8), a roller (9), a positioning block (10) and a threaded rod (16); the top of the slider (5) is fixedly connected to a connecting frame (6); the two ends of the connecting frame (6) are symmetrically hinged to the rotating arm (7); one end of the rotating arm (7) is hinged to the articulated frame (8); the two ends of the articulated frame (8) are symmetrically hinged to the rollers (9); the two ends of the connecting frame (6) are also symmetrically provided with positioning blocks (10); the internal threads of the positioning blocks (10) are connected to the threaded rod (16).

2. A fixture for a large disc-shaped workpiece according to claim 1, characterized in that: The interior of the positioning block (10) is provided with a movable groove matching the rotating arm (7), the structure of the hinge frame (8) is set to be L-shaped, and one end of the threaded rod (16) is closely connected to the outer wall of the rotating arm (7).

3. A fixture for a large disc-shaped workpiece according to claim 1, characterized in that: The shape of the slider (5) is set to be a rectangular block structure, the bottom end of the slider (5) is slidably connected to the inside of the slide rail (3), and the slide rail (3) is provided with a moving mechanism matching the slider (5).

4. A fixture for a large disc-shaped workpiece according to claim 3, characterized in that: The moving mechanism comprises a driving motor (11) and a bidirectional screw rod (12); the top of the slide rail (3) is rotatably connected to the bidirectional screw rod (12); one end of the slide rail (3) is fixedly mounted with the driving motor (11); the output end of the driving motor (11) is fixedly connected to one end of the bidirectional screw rod (12); and the two ends of the bidirectional screw rod (12) respectively pass through the interior of the two sliders (5) and are threadedly connected thereto.

5. A fixture for a large disc-shaped workpiece according to claim 1, characterized in that: A support frame (4) is provided on the top of the rotating frame (2), and the support frame (4) comprises a support table and support legs, and two sets of support legs are symmetrically fixedly connected to the bottom of the support frame (4), and the height of the top of the support frame (4) is equal to the height of the bottom of the connecting frame (6).

6. A fixture for a large disc-shaped workpiece according to claim 1, characterized in that: The rotating mechanism comprises a worm wheel (13), a worm (14) and a rotating motor (15); the outer side of the rotating frame (2) is fixedly connected to the worm wheel (13); the inner side of the base (1) is rotatably connected to the worm wheel (14); the worm wheel (14) and the outer wall of the worm wheel (13) are meshed with each other; the outer side of the base (1) is fixedly mounted with the rotating motor (15); the output end of the rotating motor (15) is fixedly connected to one end of the worm wheel (14).

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