Workpiece positioning fixture for machine tool machining

Abstract

The utility model belongs to the technical field of clamp, specifically a workpiece positioning fixture for machine tool machining, this step is placed between friction band through setting rotation block, belt pulley, belt and friction band, the workpiece is moved through positive and negative tooth screw rod drive moving plate, the rotation block and friction band are driven to move closer to each other through moving plate, the belt and friction band are supported through support block, so that friction band can be close to workpiece and realize clamping, when the workpiece needs to adjust angle, the rotation block, friction band and workpiece are driven to rotate through first motor, so that the workpiece can adjust angle, when the workpiece clamping position needs to be adjusted, the belt pulley is driven to rotate through second motor, the belt and friction band are driven to rotate through belt pulley, the workpiece is driven to move through friction band, so that the position of workpiece before being clamped can be exposed to carry out processing, and then the workpiece does not need to be disassembled and assembled again, so that its adjustment is more convenient, and the practicality of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a workpiece positioning fixture for machine tool processing. Background Technology

[0002] Fixtures are one of the commonly used devices for positioning workpieces in CNC machine tools. Currently, the most commonly used machine tool fixtures are self-centering chucks and bench vises. They are easy to operate and have a stable clamping effect, so they are widely used. However, when clamping a workpiece, the jaws of self-centering chucks and bench vises need to contact the side of the workpiece to achieve clamping.

[0003] The workpiece is difficult to process due to obstruction by the chuck or bench vise, requiring the workpiece to be disassembled, the clamping position changed, and then re-fixed, making workpiece processing inconvenient and cumbersome, and reducing the practicality of the fixture; therefore, a workpiece positioning fixture for machine tool processing is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A workpiece positioning fixture for machine tool processing, comprising a base, a screw threaded to the inner side of the base, a movable plate threaded to the outer side of the screw thread, the movable plate and the base being slidably connected, a first motor fixedly connected to the outer side of the movable plate, a rotating block fixedly connected to the output end of the first motor, a pulley rotatably connected to the inner side of the rotating block, a belt rotatably connected to the outer side of the pulley, a support block fixedly connected to the inner side of the rotating block, the support block and the belt working together, a friction belt fixedly connected to the outer side of the belt, and a second motor fixedly connected to the outer side of the rotating block. The pulley and the output end of the second motor are fixedly connected on one side. This step involves setting... The device consists of a rotating block, pulleys, a belt, and a friction belt. The workpiece is placed between the friction belts. A moving plate is driven by a forward and reverse threaded screw, which in turn moves the rotating block and friction belt closer together. A support block supports the belt and friction belt, ensuring the friction belt grips the workpiece. When the workpiece needs angle adjustment, a first motor rotates the rotating block, friction belt, and workpiece, allowing for angle adjustment. When the workpiece's clamping position needs adjustment, a second motor rotates the pulley, which in turn rotates the belt and friction belt, moving the workpiece and exposing the previously clamped position for processing. This eliminates the need for disassembly and reassembly, making adjustments more convenient and improving the device's practicality.

[0006] Preferably, a connecting plate is fixedly connected to the outer side of the movable plate, a connecting rod is slidably connected to the inner side of the connecting plate, a semi-circular block is fixedly connected to the outer side of the connecting rod, a spring is fixedly connected to one end of the connecting rod, and one end of the spring is fixedly connected to the connecting plate. This step, by setting up the connecting plate, connecting rod, semi-circular block, and spring, ensures that when the workpiece is placed and clamped between the friction belts, the semi-circular block abuts against the lower side of the workpiece, thereby providing further support and fixation to the lower side of the workpiece, making the processing of the workpiece more stable. When the workpiece rotates, it pushes the arc surface of the semi-circular block to move up and down. Through the contraction and expansion of the spring, the semi-circular block can always remain close to the lower side of the workpiece, thus maintaining support for the adjusted workpiece, making the placement and support of the workpiece more stable, and improving the stability of the device.

[0007] Preferably, a dust-collecting fan is fixedly connected to the outer side of the base, and a telescopic pipe is connected to the outer side of the dust-collecting fan. One end of the telescopic pipe is connected to a dust-collecting port. This step, by setting up a dust-collecting fan, a telescopic pipe, and a dust-collecting port, allows the dust-collecting fan to drive air and debris generated during workpiece processing into the inside of the dust-collecting port. The debris then enters the telescopic pipe through the dust-collecting port and is collected inside the dust-collecting fan, thereby reducing debris generated during workpiece processing and improving the practicality of the device.

[0008] Preferably, a limiting rod is fixedly connected to the inner side of the suction port, the limiting rod is slidably connected to the base, and a lifting screw is rotatably connected to the inner side of the suction port, the lifting screw is threadedly connected to the base. This step, by setting the limiting rod and the lifting screw, allows the suction port to be raised to a suitable height by rotating the lifting screw when dealing with workpieces of different sizes, so that it can be closer to the workpiece, and thus closer to the debris that falls during workpiece processing, making it more convenient for the dust collector to collect debris and improving the ease of use of the device.

[0009] Preferably, a limiting plate is fixedly connected to one side of both the limiting rod and the lifting screw, and the limiting plate works in conjunction with the base. This step, by setting the limiting plate, makes the rotation of the lifting screw more convenient. When the limiting rod and the lifting screw move to their maximum position, the limiting plate adheres tightly to the base, making it difficult for the limiting rod and the lifting screw to move further, thus making it difficult to separate from the base and improving the stability of the device.

[0010] Preferably, the surface of the screw thread has a slot, and a rod is slidably connected to the inner side of the base. The slot and the rod work together. By setting the slot and the rod, after the screw thread has finished rotating, the rod can be inserted into the slot to restrict the screw thread, making it difficult for it to rotate again, thus improving the stability of the device adjustment.

[0011] Preferably, a mounting plate is fixedly connected to the outer side of the base, and the surface of the mounting plate is provided with a mounting groove. This step, by setting up the mounting plate and the mounting groove, facilitates the installation and fixing of the device by screwing screws into the mounting groove and the mounting location, thereby improving the convenience of device installation.

[0012] Preferably, a magnetic plate is fixedly connected to the outer side of the mounting plate, and a friction pad is fixedly connected to the outer side of the mounting plate. This step, by setting the magnetic plate and the friction pad, allows the mounting plate to be attracted to the outer side of the mounting location by the magnetic plate when it is placed at the mounting location. When the screw is screwed into the mounting groove and the mounting location, it will squeeze the friction pad, thereby further increasing the friction coefficient between the device and the mounting location, making the placement and installation of the device more stable and improving the stability of the device.

[0013] The advantages of this utility model are:

[0014] 1. This utility model, by setting up a rotating block, pulley, belt, and friction belt, places the workpiece between the friction belts. A moving plate is driven by a forward and reverse threaded screw, which in turn moves the rotating block and friction belt closer together. A support block supports the belt and friction belt, allowing the friction belt to clamp the workpiece tightly. When the workpiece needs angle adjustment, a first motor drives the rotating block, friction belt, and workpiece to rotate, allowing the workpiece to adjust its angle. When the workpiece clamping position needs adjustment, a second motor drives the pulley to rotate, which in turn drives the belt and friction belt to rotate, moving the workpiece and exposing the previously clamped position for processing. This eliminates the need to disassemble and reassemble the workpiece, making adjustments more convenient and improving the device's practicality.

[0015] 2. This utility model, by setting up a connecting plate, connecting rod, semicircular block, and spring, allows the workpiece to be clamped and fixed between the friction belts. The semicircular block abuts against the lower side of the workpiece, thereby providing further support and fixation to the lower side of the workpiece, making the processing of the workpiece more stable. When the workpiece rotates, it pushes the arc surface of the semicircular block to move up and down. Through the contraction and expansion of the spring, the semicircular block can always be kept close to the lower side of the workpiece, thus maintaining support for the adjusted workpiece. This makes the placement and support of the workpiece more stable and improves the stability of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a front view of the structure in this utility model;

[0018] Figure 2 This is a bottom view of the structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the movable plate structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the belt structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the dust extraction fan structure in this utility model.

[0022] In the diagram: 1. Base; 2. Threaded screw; 3. Moving plate; 4. First motor; 5. Rotating block; 6. Pulley; 7. Belt; 8. Support block; 9. Friction belt; 10. Second motor; 11. Connecting plate; 12. Connecting rod; 13. Semicircular block; 14. Spring; 15. Vacuum fan; 16. Telescopic tube; 17. Vacuum port; 18. Limiting rod; 19. Lifting screw; 20. Limiting plate; 21. Slot; 22. Insert rod; 23. Mounting plate; 24. Mounting groove; 25. Magnetic plate; 26. Friction pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1 to 5As shown, a workpiece positioning fixture for machine tool processing includes a base 1. A screw 2 with both positive and negative threads is rotatably connected to the inner side of the base 1. A moving plate 3 is threadedly connected to the outer side of the screw 2. The moving plate 3 and the base 1 are slidably connected. A first motor 4 is fixedly connected to the outer side of the moving plate 3. A rotating block 5 is fixedly connected to the output end of the first motor 4. A pulley 6 is rotatably connected to the inner side of the rotating block 5. A belt 7 is rotatably connected to the outer side of the pulley 6. A support block 8 is fixedly connected to the inner side of the rotating block 5. The support block 8 and the belt 7 cooperate with each other. A friction belt 9 is fixedly connected to the outer side of the belt 7. A second motor 10 is fixedly connected to the outer side of the rotating block 5. The output ends of the pulley 6 and the second motor 10 are fixedly connected on one side. This step involves setting up the rotating block 5, pulley 6, and belt 7. The workpiece is placed between the friction belts 9 and the rotating block 5. The moving plate 3 is driven by the positive and negative thread screws 2, which in turn drives the rotating block 5 and the friction belt 9 to move closer together. The supporting block 8 supports the belt 7 and the friction belt 9, allowing the friction belt 9 to clamp the workpiece tightly. When the angle of the workpiece needs to be adjusted, the rotating block 5, the friction belt 9, and the workpiece are rotated by the first motor 4, allowing the workpiece to be adjusted. When the clamping position of the workpiece needs to be adjusted, the pulley 6 is driven by the second motor 10, which in turn drives the belt 7 and the friction belt 9 to rotate, and the workpiece is moved by the friction belt 9, exposing the previously clamped position of the workpiece for processing. This eliminates the need to disassemble and reassemble the workpiece, making the adjustment more convenient and improving the practicality of the device.

[0026] Furthermore, such as Figure 1 and Figure 3 As shown, a connecting plate 11 is fixedly connected to the outer side of the movable plate 3, a connecting rod 12 is slidably connected to the inner side of the connecting plate 11, a semicircular block 13 is fixedly connected to the outer side of the connecting rod 12, a spring 14 is fixedly connected to one end of the connecting rod 12, and one end of the spring 14 is fixedly connected to the connecting plate 11. This step, by setting up the connecting plate 11, connecting rod 12, semicircular block 13, and spring 14, allows the workpiece to be clamped and fixed between the friction bands 9. The semicircular block 13 abuts against the lower side of the workpiece, further supporting and fixing the lower side of the workpiece, making the processing of the workpiece more stable. When the workpiece rotates, it pushes the arc surface of the semicircular block 13 to move up and down. Through the contraction and expansion of the spring 14, the semicircular block 13 can always be pressed against the lower side of the workpiece, thus maintaining support for the adjusted workpiece, making the placement and support of the workpiece more stable, and improving the stability of the device.

[0027] Furthermore, such as Figure 1 , Figure 2 and Figure 5As shown, a dust extraction fan 15 is fixedly connected to the outside of the base 1, and a telescopic pipe 16 is connected to the outside of the dust extraction fan 15. One end of the telescopic pipe 16 is connected to a dust extraction port 17. This step, by setting up the dust extraction fan 15, the telescopic pipe 16, and the dust extraction port 17, allows the dust extraction fan 15 to drive air and debris generated during processing to be sucked into the inside of the dust extraction port 17, and then into the telescopic pipe 16 through the dust extraction port 17, and finally into the inside of the dust extraction fan 15 for collection. This reduces the debris generated during workpiece processing and improves the practicality of the device.

[0028] Furthermore, such as Figure 1 , Figure 2 and Figure 5 As shown, a limiting rod 18 is fixedly connected to the inner side of the dust suction port 17. The limiting rod 18 is slidably connected to the base 1. A lifting screw 19 is rotatably connected to the inner side of the dust suction port 17. The lifting screw 19 is threadedly connected to the base 1. This step, by setting the limiting rod 18 and the lifting screw 19, allows the dust suction port 17 to be raised to a suitable height by rotating the lifting screw 19 when facing workpieces of different sizes. This allows it to get closer to the workpiece, making it easier to collect the debris that falls during workpiece processing. This makes it more convenient for the dust suction fan 15 to collect the debris and improves the ease of use of the device.

[0029] Furthermore, such as Figure 2 As shown, a limiting plate 20 is fixedly connected to one side of both the limiting rod 18 and the lifting screw 19. The limiting plate 20 works in conjunction with the base 1. This step, by setting the limiting plate 20, makes the rotation of the lifting screw 19 more convenient. When the limiting rod 18 and the lifting screw 19 move to their maximum position, the limiting plate 20 adheres tightly to the base 1, making it difficult for the limiting rod 18 and the lifting screw 19 to continue moving, and thus making it difficult to separate from the base 1, thereby improving the stability of the device.

[0030] Furthermore, such as Figure 1 As shown, the surface of the screw 2 with the positive and negative threads is provided with a slot 21, and the inner side of the base 1 is slidably connected with a rod 22. The slot 21 and the rod 22 are used in conjunction. By setting the slot 21 and the rod 22, after the screw 2 with the positive and negative threads has finished rotating, the rod 22 can be inserted into the inner side of the slot 21 to restrict the screw 2 with the positive and negative threads, making it difficult for it to rotate again, thereby improving the stability of the device adjustment.

[0031] Furthermore, such as Figure 1As shown, a mounting plate 23 is fixedly connected to the outer side of the base 1, and a mounting groove 24 is provided on the surface of the mounting plate 23. This step, by setting the mounting plate 23 and the mounting groove 24, makes it easy to install and fix the device by screwing screws into the mounting groove 24 and the installation location, thereby improving the convenience of device installation.

[0032] Furthermore, such as Figure 2 As shown, a magnetic plate 25 is fixedly connected to the outer side of the mounting plate 23, and a friction pad 26 is fixedly connected to the outer side of the mounting plate 23. This step, by setting the magnetic plate 25 and the friction pad 26, allows the mounting plate 23 to be attracted to the outer side of the mounting location by the magnetic plate 25 when it is placed at the mounting location. When the screw is screwed into the mounting groove 24 and the mounting location, it will squeeze the friction pad 26, thereby further increasing the friction coefficient between the device and the mounting location, making the placement and installation of the device more stable and improving the stability of the device.

[0033] The working principle is as follows: the workpiece is placed between the friction belts 9, and the moving plate 3 is moved by the positive and negative thread screws 2. The moving plate 3 drives the rotating block 5 and the friction belt 9 to move closer to each other. The support block 8 supports the belt 7 and the friction belt 9, so that the friction belt 9 can be tightly clamped to the workpiece. When the angle of the workpiece needs to be adjusted, the first motor 4 drives the rotating block 5, the friction belt 9 and the workpiece to rotate, so that the angle of the workpiece can be adjusted. When the clamping position of the workpiece needs to be adjusted, the second motor 10 drives the pulley 6 to rotate. The pulley 6 drives the belt 7 and the friction belt 9 to rotate. The friction belt 9 drives the workpiece to move so that the position where the workpiece was previously clamped can be moved to separate from the friction belt 9, so that it can be exposed for processing.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A workpiece positioning fixture for machine tool processing, comprising a base (1), characterized in that: The base (1) is rotatably connected to a screw rod (2) with both positive and negative threads. The screw rod (2) is threadedly connected to a moving plate (3) on the outside. The moving plate (3) and the base (1) are slidably connected. The moving plate (3) is fixedly connected to a first motor (4) on the outside. The output end of the first motor (4) is fixedly connected to a rotating block (5). The rotating block (5) is rotatably connected to a pulley (6) on the inside. The pulley (6) is rotatably connected to a belt (7) on the outside. The rotating block (5) is fixedly connected to a support block (8). The support block (8) and the belt (7) are used together. The belt (7) is fixedly connected to a friction belt (9) on the outside. The rotating block (5) is fixedly connected to a second motor (10) on the outside. The pulley (6) on one side is fixedly connected to the output end of the second motor (10).

2. The workpiece positioning fixture for machine tool processing according to claim 1, characterized in that: A connecting plate (11) is fixedly connected to the outside of the movable plate (3), and a connecting rod (12) is slidably connected to the inside of the connecting plate (11). A semi-circular block (13) is fixedly connected to the outside of the connecting rod (12), and a spring (14) is fixedly connected to one end of the connecting rod (12). One end of the spring (14) is fixedly connected to the connecting plate (11).

3. A workpiece positioning fixture for machine tool processing according to claim 2, characterized in that: A vacuum cleaner fan (15) is fixedly connected to the outside of the base (1), and a telescopic tube (16) is connected to the outside of the vacuum cleaner fan (15). One end of the telescopic tube (16) is connected to a vacuum port (17).

4. A workpiece positioning fixture for machine tool processing according to claim 3, characterized in that: A limiting rod (18) is fixedly connected to the inside of the suction port (17). The limiting rod (18) and the base (1) are slidably connected. A lifting screw (19) is rotatably connected to the inside of the suction port (17). The lifting screw (19) and the base (1) are threadedly connected.

5. A workpiece positioning fixture for machine tool processing according to claim 4, characterized in that: The limiting rod (18) and the lifting screw (19) are both fixedly connected to a limiting plate (20) on one side, and the limiting plate (20) and the base (1) are used together.

6. A workpiece positioning fixture for machine tool processing according to claim 5, characterized in that: The surface of the positive and negative threaded screw (2) is provided with a slot (21), and the inner side of the base (1) is slidably connected with a plug (22). The slot (21) and the plug (22) are used together.

7. A workpiece positioning fixture for machine tool processing according to claim 6, characterized in that: The base (1) is fixedly connected to an installation plate (23), and the surface of the installation plate (23) is provided with an installation groove (24).

8. A workpiece positioning fixture for machine tool processing according to claim 7, characterized in that: A magnetic plate (25) is fixedly connected to the outside of the mounting plate (23), and a friction pad (26) is fixedly connected to the outside of the mounting plate (23).

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