CN222740846U - Special-shaped piece fixture tool for numerical control machine tool - Google Patents

Abstract

The utility model discloses a special-shaped piece fixture for a numerical control machine tool, which relates to the technical field of machine tool fixtures and comprises a base, wherein a positive and negative screw rod is rotationally connected to the inner side of the base, a swing arm is movably connected to the upper surface of a threaded sleeve at fixed points, a first sliding block is slidably connected to the outer surface of the swing arm, a clamping jaw is movably connected to the outer surface of the first sliding block at fixed points, a motor is fixedly arranged on the outer surface of the base, an output shaft of the motor is fixedly connected with one end of the positive and negative screw rod, the positive and negative screw rod can drive the threaded sleeve to move through the cooperation between the positive and negative screw rod, the threaded sleeve enables the swing arm to have a swinging function so as to adapt to the appearance of a special-shaped workpiece, the clamping jaw is driven to move through the swing of the swing arm, and after the clamping jaw at one end of the swing arm contacts the special-shaped workpiece, the clamping jaw at the other end is driven to move continuously until the clamping jaw contacts the special-shaped workpiece through the swing arm.

Description

Special-shaped piece fixture tool for numerical control machine tool

Technical Field

The utility model relates to the technical field of machine tool fixtures, in particular to a special-shaped piece fixture for a numerical control machine tool.

Background

The fixture is a tool used for fixing a workpiece in a mechanical manufacturing process, so that the workpiece is fixed and is convenient to process, the fixture can be roughly divided into a welding fixture, a checking fixture, an assembling fixture, a machine tool fixture and the like, wherein the machine tool fixture is most common, the fixture usually consists of a positioning element, a clamping device and the like, plays an important role in machining, is beneficial to ensuring the machining precision of the workpiece, improving the product quality, improving the productivity and reducing the cost, and is of great importance to improving the machining efficiency and ensuring the machining quality.

When the existing numerical control machine tool is used for machining, a machined part is generally required to be placed in a clamp for locking and fixing, then cutting machining is carried out on the machined part, but when the special-shaped workpiece is clamped and fastened, the clamping jaw in the clamp cannot synchronously move when the existing clamp is tightened inwards due to irregular appearance of the special-shaped workpiece, the clamping effect cannot be achieved on the special-shaped workpiece, and the workpiece is inconvenient to machine.

Disclosure of utility model

First) solving the technical problems

The utility model aims to make up the defects of the prior art and provides a special-shaped piece fixture for a numerical control machine tool.

Two) technical scheme

The special-shaped piece fixture for the numerical control machine tool comprises a base, wherein a positive and negative screw rod is rotatably connected to the inner side of the base, a threaded sleeve is connected to the outer surface of the positive and negative screw rod in a threaded mode, a swing arm is movably connected to the upper surface of the threaded sleeve in a fixed point mode, a first sliding block is slidably connected to the outer surface of the swing arm, a clamping jaw is movably connected to the outer surface of the first sliding block in a fixed point mode, a positioning mechanism is arranged in the first sliding block, a motor is fixedly installed on the outer surface of the base, and an output shaft of the motor is fixedly connected with one end of the positive and negative screw rod.

Further, the positioning mechanism comprises a sleeve, the inner wall of the sleeve is slidably connected with a guide rod, one end of the guide rod is fixedly connected with a rotating wheel, one end of the guide rod, which is positioned inside the first sliding block, is fixedly and movably connected with a pressing plate, and the outer surface of the pressing plate is slidably connected with the inner wall of the first sliding block.

Further, a spring is sleeved outside the guide rod, one end of the spring is fixedly connected with the inner wall of the first sliding block, and the other end of the spring is fixedly connected with the upper surface of the pressing plate.

Further, a guide groove is formed in the inner side of the sleeve, a sliding rod is fixedly connected to the outer surface of the guide rod, and the outer surface of the sliding rod is in sliding connection with the inner wall of the guide groove.

Further, the inner wall fixedly connected with guide rail of base, the surface sliding connection of guide rail has the second slider, the upper surface fixed point swing joint of second slider has the third slider, the inner wall and the surface sliding connection of swing arm of third slider.

Further, the outer surface of the clamping jaw penetrates through the two tension springs to be movably connected, and the other end of each tension spring is movably connected with the outer surface of the first sliding block in a penetrating mode.

Further, the inner wall fixedly connected with of base places the platform, the surface fixedly connected with mount pad of base.

Third) beneficial effects

Compared with the prior art, the special-shaped piece fixture tool for the numerical control machine tool has the following beneficial effects:

1. According to the utility model, through the cooperation between the positive and negative screw rod, the threaded sleeve, the swing arm and the clamping jaw, the positive and negative screw rod can drive the threaded sleeve to move, the threaded sleeve can drive the swing arms on two sides to retract inwards, the swing arms drive the clamping jaw to move to contact with the special-shaped workpiece, the threaded sleeve enables the swing arm to have a swinging function so as to adapt to the appearance of the special-shaped workpiece, the swing arm swings to drive the clamping jaw to move, after the clamping jaw on one end of the swing arm contacts with the special-shaped workpiece, the clamping jaw on the other end is driven to move continuously until the clamping jaw contacts with the special-shaped workpiece, and the problem that the special-shaped workpiece cannot be clamped is solved.

2. According to the utility model, through the cooperation between the guide rod, the pressing plate and the guide groove, the guide groove can guide the sliding rod to slide upwards, the guide rod is driven to move upwards after the sliding rod slides upwards, the guide rod drives the pressing plate to break away from contact with the swing arm, the positioning of the first sliding block is relieved, the first sliding block can change the position under the pushing of external force, so that the special-shaped workpiece clamping tool is suitable for special-shaped workpieces with different specifications and sizes, and the clamping function of the special-shaped workpiece clamping tool of the numerical control machine tool is further increased.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the main components of the present utility model;

FIG. 3 is a schematic view of the internal structure of the first slider of the present utility model;

fig. 4 is a schematic view of the whole perspective structure of the guide rail of the present utility model.

1, A base, 2, a threaded sleeve, 3, a swing arm, 4, a first sliding block, 5, a clamping jaw, 6, a positioning mechanism, 601, a sleeve, 602, a guide rod, 603, a rotating wheel, 604, a pressing plate, 605, a spring, 606, a guide groove, 607, a sliding rod, 7, a motor, 8, a guide rail, 9, a second sliding block, 10, a third sliding block, 11, a tension spring, 12, a placing table, 13, a mounting seat and 14, and a positive and negative screw rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme as shown in figures 1-4, the special-shaped piece fixture for a numerical control machine tool comprises a base 1, a placing table 12 is fixedly connected to the inner wall of the base 1, an installing seat 13 is fixedly connected to the outer surface of the base 1, a workpiece is supported by the placing table 12 and is connected and installed with the machine tool through the installing seat 13, a forward and reverse screw 14 is rotatably connected to the inner side of the base 1, a thread sleeve 2 is fixedly arranged on the outer surface of the forward and reverse screw 14 in a threaded manner, the forward and reverse screw 14 is rotatably driven to move by the thread sleeve 2, a swing arm 3 is movably connected to the upper surface fixed point of the thread sleeve 2, the swing arm 3 is driven to move by the moving thread sleeve 2, the outer surface of the swing arm 3 is slidably connected with a first sliding block 4, a clamping jaw 5 is movably connected to the outer surface fixed point of the first sliding block 4 through the swing arm 3, the first sliding block 4 has a sliding function, so that the clamping jaw 5 can be adapted to special-shaped workpieces with different specifications, a sliding groove formed in the inner side of the swing arm 3 can be increased, the stability of the first sliding block 4 during sliding can be fixedly installed on the outer surface of the base 1, a motor 7 is fixedly connected to one end of the output shaft of the motor 7 and one end of the motor 14 can be fixedly connected to the other end of the motor 14.

The inside of first slider 4 is provided with positioning mechanism 6, positioning mechanism 6 can control first slider 4 to remove, positioning mechanism 6 includes sleeve 601, the inner wall sliding connection of sleeve 601 has guide arm 602, the one end fixedly connected with runner 603 of guide arm 602, the one end fixed point swing joint of guide arm 602 in first slider 4 has clamp plate 604, the surface of clamp plate 604 and the inner wall sliding connection of first slider 4, sleeve 601 can increase the stability of guide arm 602 when the slip, drive guide arm 602 rotation through runner 603, the outside of guide arm 602 has cup jointed spring 605, the one end and the inner wall fixed connection of first slider 4 of spring 605, the other end and the upper surface fixed connection of clamp plate 604 of spring 605 support spring 605, through first slider 4 to support spring 605 can promote clamp plate 604 and swing arm 3 to tightly contact, the restriction first slider 4 removes, the inboard of sleeve 601 is equipped with guide slot 606, the surface fixed connection slide bar of guide arm 602, the surface and the inner wall sliding connection of guide slot 606, the guide slot 606 has the angle of upwards inclination, can guide the guide arm 602 upwards slides, drive slide bar 607 and slide bar 607 upwards, the slide bar is upwards, the top slide 4 is simultaneously driven to slide bar 607 and slide bar 604 upwards slides, the upper surface of clamp plate 604 is separated from the upper surface fixed connection of clamp plate 604, the first slider 4 is removed from the first slider 4 of the size of a special-shaped change, the size is different from the size of the first slider 4, the size is suitable for the change, the size is different to be suitable for the position.

The inner wall fixedly connected with guide rail 8 of base 1, the surface sliding connection of guide rail 8 has second slider 9, the upper surface fixed point swing joint of second slider 9 has third slider 10, the inner wall of third slider 10 and the surface sliding connection of swing arm 3, for preventing swing arm 3 when driving clamping jaw 5 and press from both sides tight work piece, do not have sufficient holding power, carry out direction guidance and support to second slider 9 through guide rail 8, increase the stability of second slider 9, can drive third slider 10 mobile position when swing arm 3 moves, and support third slider 10 through second slider 9, make third slider 10 have stability, third slider 10 can provide more stable supporting role for swing arm 3, the surface of clamping jaw 5 runs through swing joint has two extension springs 11, the other end of extension spring 11 and the surface of first slider 4 run through swing joint, after clamping jaw 5 presss from both sides tight work piece, in order to prevent that clamping jaw 5 can not reset, can drive clamping jaw 5 through extension spring 11 and reset, be convenient for the clamping jaw 5 to press from both sides tight work piece operation to the next.

The working principle is that the special-shaped workpiece is firstly connected with a numerical control machine tool through the mounting seat 13, then is placed on the placing table 12, the guide rod 602 is driven to rotate through the rotating wheel 603, the slide rod 607 is guided to move upwards through the guide groove 606 while the guide rod 602 rotates, the guide rod 602 drives the pressing plate 604 to move upwards and separate from contact with the swing arm 3, the first sliding block 4 is pushed to drive the clamping jaw 5 to move, so that the specification and the size of the special-shaped workpiece are used, the spring 605 is compressed while the pressing plate 604 moves upwards, the power is provided for resetting the pressing plate 604, the motor 7 is started to rotate, the motor 7 drives the positive and negative lead screw 14 to rotate, the positive and negative lead screw 14 drives the threaded sleeve 2 to move, the threaded sleeve 2 drives the swing arm 3 to move, the clamping jaw 5 is driven to move, and then the clamping jaw 5 is contacted with the special-shaped workpiece to clamp.

Claims (7)

1. A special-shaped piece fixture for a numerical control machine tool comprises a base (1) and is characterized in that a positive lead screw (14) is rotationally connected to the inner side of the base (1), a threaded sleeve (2) is connected to the outer surface of the positive lead screw (14) in a threaded mode, a swing arm (3) is movably connected to the upper surface of the threaded sleeve (2) in a fixed-point mode, a first sliding block (4) is slidably connected to the outer surface of the swing arm (3), a clamping jaw (5) is movably connected to the outer surface of the first sliding block (4) in a fixed-point mode, a positioning mechanism (6) is arranged in the first sliding block (4), a motor (7) is fixedly arranged on the outer surface of the base (1), and an output shaft of the motor (7) is fixedly connected with one end of the positive lead screw (14).

2. The special-shaped piece fixture tool for the numerical control machine tool according to claim 1, wherein the positioning mechanism (6) comprises a sleeve (601), a guide rod (602) is slidably connected to the inner wall of the sleeve (601), a rotating wheel (603) is fixedly connected to one end of the guide rod (602), a pressing plate (604) is movably connected to one end, located inside the first sliding block (4), of the guide rod (602), and the outer surface of the pressing plate (604) is slidably connected with the inner wall of the first sliding block (4).

3. The special-shaped piece fixture tool for the numerical control machine tool according to claim 2, wherein a spring (605) is sleeved outside the guide rod (602), one end of the spring (605) is fixedly connected with the inner wall of the first sliding block (4), and the other end of the spring (605) is fixedly connected with the upper surface of the pressing plate (604).

4. The special-shaped piece fixture for the numerical control machine tool according to claim 3, wherein the inner side of the sleeve (601) is provided with a guide groove (606), the outer surface of the guide rod (602) is fixedly connected with a sliding rod (607), and the outer surface of the sliding rod (607) is in sliding connection with the inner wall of the guide groove (606).

5. The special-shaped piece fixture tool for the numerical control machine tool according to claim 1, wherein the inner wall of the base (1) is fixedly connected with a guide rail (8), the outer surface of the guide rail (8) is slidably connected with a second sliding block (9), the upper surface of the second sliding block (9) is movably connected with a third sliding block (10) at fixed points, and the inner wall of the third sliding block (10) is slidably connected with the outer surface of the swing arm (3).

6. The special-shaped piece fixture for the numerical control machine tool according to claim 1, wherein the outer surface of the clamping jaw (5) is penetrated and movably connected with two tension springs (11), and the other ends of the tension springs (11) are penetrated and movably connected with the outer surface of the first sliding block (4).

7. The special-shaped piece fixture tool for the numerical control machine tool according to claim 1, wherein the inner wall of the base (1) is fixedly connected with a placing table (12), and the outer surface of the base (1) is fixedly connected with a mounting seat (13).