A structure for measuring the size of a sheet material

Abstract

A structure for measuring the size of a sheet material, which comprises an anti-collision rubber pad, a first moving clamp, a second moving clamp, a third moving clamp, an inclined rack, and a bed body square rail. It is characterized in that the first moving clamp, the second moving clamp, and the third moving clamp can move on the bed body square rail, can clamp the sheet material, and can detect whether there is a sheet material through the sensors thereon. By combining the detection signals of the sensors, the length of the sheet material can be determined. The structure for measuring the size of the sheet material provided by the present invention is all mechanical structures, with low complexity, good durability and environmental adaptability, and a large range of sheet material lengths that can be measured.

Description

Technical Field

[0001] The present invention relates to a sheet processing technology, in particular to a sheet measurement technology, and specifically to a structure for measuring the size of a sheet with a pure mechanical structure. Background Art

[0002] With the improvement of factory automation technology, in many factories, more and more work is completed by mechanical tools. However, some errors are inevitably generated, which may seriously cause factory accidents such as production line shutdown. In the field of sheet processing, a sheet processing machine usually needs to process sheets of different sizes and types. Generally, the sizes of sheets are mostly of two lengths. Therefore, it is only necessary to determine whether the sheet is a long sheet or a short sheet. Therefore, it is necessary for the sheet processing machine to measure the length of the sheet to determine whether the sheet on the sheet processing machine meets the requirements.

[0003] At the present stage, the method for measuring the length of a sheet is to take a picture of the sheet through a camera and then perform post-processing to know the length of the sheet. However, using a camera has a high cost, poor adaptability to the on-site environment, and there may be a situation where the sheet is blocked. The camera cannot comprehensively photograph the sheet, so a complete image cannot be obtained, and the length of the sheet cannot be measured. Therefore, the method of measuring the sheet length by taking pictures with a camera is not suitable for a sheet processing machine. Therefore, it is very necessary to develop a mechanical structure with strong environmental adaptability and capable of measuring the length of a sheet. Summary of the Invention

[0004] The object of the present invention is to design a structure for measuring the size of a sheet with a pure mechanical structure to solve the problems of poor accuracy and high requirements for the measurement environment in the existing sheet size measurement relying on image technology, and to solve the problems of inconvenient measurement of the length of a sheet and poor effect in the prior art.

[0005] The specific technical solution adopted by the present invention is as follows:

[0006] A structure for measuring the size of a sheet, including an anti-collision rubber pad, a first moving clamp, a second moving clamp, a third moving clamp, an inclined rack, and a bed body square rail. It is characterized in that the anti-collision rubber pad, the inclined rack, and the bed body square rail are all installed on the bed body. The anti-collision rubber pad is used to prevent the first moving clamp and the third moving clamp from rushing out of the working surface; the inclined rack and the bed body square rail are used to assist the movement of the first moving clamp, the second moving clamp, and the third moving clamp; the first moving clamp, the second moving clamp, and the third moving clamp are installed on the bed body square rail and are used to drive the sheet to move; a first sensor is installed on the first moving clamp, and a second sensor is installed on the third moving clamp. The first sensor and the second sensor are used to sense the presence or absence of the sheet, and the electronic control system determines the length of the sheet according to the signals of the first sensor and the second sensor.

[0007] Further, the first moving fixture includes a flange slider, a fixture base, a fixture motor bracket, a helical gear, a reducer, and a fixture servo motor. The flange slider is mounted on the square rail of the machine tool bed; the fixture base is mounted on the flange slider and can move on the square rail of the machine tool bed by means of the flange slider; the fixture motor bracket is mounted on the fixture base and is used to fix the reducer and the fixture servo motor; the helical gear is connected to the output end of the reducer and cooperates with the helical rack; the fixture servo motor is connected to the reducer, and the fixture servo motor provides power for the movement of the fixture base.

[0008] Further, the first moving fixture further includes a cylinder, a cylinder connecting piece, a gripper connecting plate, a fixture connecting rod, a fixture gripper, a gripper fixing block, a square slider, and a connecting plate square rail. The cylinder is fixedly connected to both the fixture base and the fixture motor bracket and provides clamping power for the fixture gripper; both ends of the cylinder connecting piece are respectively connected to the cylinder and the gripper connecting plate; both ends of the gripper connecting plate are respectively connected to the cylinder connecting piece and the fixture connecting rod, and the gripper connecting plate is fixed to the square slider, and the gripper connecting plate can make a horizontal movement on the connecting plate square rail by means of the square slider; both ends of the fixture connecting rod are respectively connected to the gripper connecting plate and the fixture gripper; the fixture gripper is mounted on the gripper fixing block and can rotate on the gripper fixing block, and the power of the cylinder can finally make the fixture gripper rotate to clamp the plate; the connecting plate square rail is mounted on the fixture base and can assist the movement of the gripper connecting plate.

[0009] Further, the first moving fixture further includes a horizontal bearing group, a vertical bearing group, a fixture base gland, a first sensor, and a fixture rubber pad. The horizontal bearing group is horizontally mounted on the fixture base and fixed with the fixture base gland to prevent it from falling off; the vertical bearing group is vertically mounted on the fixture base, and both the horizontal bearing group and the vertical bearing group are used to assist the movement of the plate; the first sensor is mounted on the fixture base gland and is used to detect whether there is a plate; the fixture rubber pad is on the fixture gripper and is used to prevent the first moving fixture from damaging the plate when clamping the plate.

[0010] Further, the structures of the second moving fixture and the third moving fixture are the same as that of the first moving fixture (except for the first sensor); the third moving fixture further includes a second sensor, which is mounted in the middle of the fixture gripper and is used to detect whether there is a plate.

[0011] The beneficial effects of the present invention: This kind of structure for measuring the size of the plate is all mechanical structures, with low complexity, good durability and environmental adaptability, and a large range of plate lengths that can be measured. Description of the Drawings

[0012] Figure 1 It is the front view of a structure for measuring the size of a plate provided by an embodiment of the present invention.

[0013] Figure 2 It is an exploded view of the first moving fixture provided by an embodiment of the present invention.

[0014] Figure 3 It is an oblique view (hiding the fixture housing) of the first moving fixture provided by an embodiment of the present invention.

[0015] Figure 4 It is an oblique view of the key part where the fixture gripper holds the sheet material provided by an embodiment of the present invention.

[0016] Figure 5 It is an oblique view of the fixture gripper part provided by an embodiment of the present invention.

[0017] Figure 6 It is an oblique view of the third moving fixture provided by an embodiment of the present invention.

[0018] Wherein: 1 - anti-collision rubber pad, 2 - first moving fixture, 2-1 - fixture housing, 2-2 - fixture gripper, 2-3 - fixture connecting rod, 2-4 - gripper connecting plate, 2-5 - fixture rubber pad, 2-6 - first sensor, 2-7 - fixture base gland, 2-8 - square slider, 2-9 - connecting plate square rail, 2-10 - gripper fixing block, 2-11 - horizontal bearing group, 2-12 - vertical bearing group, 2-13 - flange slider, 2-14 - fixture base, 2-15 - helical gear, 2-16 - fixture motor bracket, 2-17 - cylinder, 2-18 - cylinder connecting piece, 2-19 - reducer, 2-20 - fixture servo motor, 3 - second moving fixture, 4 - third moving fixture, 4-1 - second sensor, 5 - helical rack, 6 - bed body square rail. Detailed implementation manners

[0019] The following further describes the present invention in combination with embodiments. The given embodiments are only for illustrative purposes and should not be construed as a limitation of the present invention. The included drawings are for reference and illustration only and do not constitute a limitation on the protection scope of the present invention, because many changes can be made to the present invention without departing from its spirit and scope.

[0020] As Figure 1-6 shown.

[0021] A structure for measuring the size of a sheet material, including an anti-collision rubber pad 1, a first moving clamp 2, a second moving clamp 3, a third moving clamp 4, an inclined rack 5, and a bed body square rail 6. It is characterized in that the number of the anti-collision rubber pads 1 is 2, which are respectively installed at the front and rear ends of the bed body to prevent the first moving clamp 2 and the third moving clamp 4 from rushing out of the working surface; the bed body square rail 6 is installed on the bed body, with its front side facing upward, and a flange slider 2-13 is installed thereon for cooperation, and the flange slider 2-13 can move on the bed body square rail 6; the inclined rack 5 is installed on the bed body, with its inclined tooth surface facing downward, and is used to cooperate with an inclined gear 2-15. When the inclined gear 2-15 rotates, it can drive the first moving clamp 2, the second moving clamp 3, and the third moving clamp 4 to move synchronously; the first moving clamp 2, the second moving clamp 3, and the third moving clamp 4 are connected to the bed body square rail 6 through the flange slider 2-13 and can perform horizontal movement to drive the sheet material to move and realize the measurement of the length of the sheet material. A first sensor is installed on the first moving clamp, and a second sensor is installed on the third moving clamp. The first, second, and third sensors can be realized by components with low environmental requirements such as photoelectric switches, microswitches, and laser sensors. The first sensor and the second sensor are used to sense the presence or absence of the sheet material, and the electronic control system determines the length of the sheet material according to the signals of the first sensor and the second sensor. For Figure 1 example, by reading the content in the file to be processed, the control system can know the length of the processed sheet material required by the sheet material processing machine. When its length does not exceed the length of the feeding table panel, the first, second, and third fixture jaws can detect the length of the sheet material to be processed within the length range of the feeding table panel. When the sheet material to be processed is conveyed onto the feeding table panel, by detecting the change in the signal of the first sensor, the first corner of the sheet material to be processed can be found, and the first fixture jaw clamps the sheet material to be processed. At this time, the detection position of the first sensor is at the first corner of the sheet material to be processed. The third fixture jaw moves a corresponding distance according to the length of the sheet material in the processing file in the control system (that is, the distance between the first fixture jaw and the third fixture jaw is equal to the length of the sheet material in the processing file in the control system). At this time, if the second sensor detects the sheet material to be processed and the third sensor does not detect the sheet material to be processed, it means that the length of the sheet material to be processed is equal to the length of the sheet material in the processing file in the control system, that is, the feeding of the sheet material to be processed is correct; if the second sensor detects the sheet material to be processed and the third sensor also detects the sheet material to be processed, it means that the length of the sheet material to be processed is greater than the length of the sheet material in the processing file in the control system, that is, the feeding of the sheet material to be processed is incorrect; if the second sensor does not detect the sheet material to be processed, it means that the length of the sheet material to be processed is less than the length of the sheet material in the processing file in the control system, that is, the feeding of the sheet material to be processed is incorrect.

[0022] Specifically, the first moving fixture 2 includes a flange slider 2-13, a fixture base 2-14, a fixture motor bracket 2-16, a helical gear 2-15, a speed reducer 2-19, and a fixture servo motor 2-20. As Figure 2 shown, the flange slider 2-13 is fixed to the bottom of the fixture base 2-14. As Figure 3 shown, and the flange slider 2-13 can move on the bed body square rail 6, that is, the fixture base 2-14 can move on the bed body square rail 6 by means of the flange slider 2-13; the fixture motor bracket 2-16 is installed on the fixture base 2-14 and is used to fix the speed reducer 2-19 and the fixture servo motor 2-20; the helical gear 2-15 is connected to the output end of the speed reducer 2-19, and the output end of the fixture servo motor 2-20 is connected to the input end of the speed reducer 2-19. The fixture servo motor 2-20 can drive the helical gear 2-15 to rotate, and the helical gear 2-15 cooperates with the helical rack 5. This kind of cooperation can convert the rotational power into the power of horizontal movement. Therefore, the fixture servo motor 2-20 is the power for the horizontal movement of the fixture base 2-14.

[0023] Specifically, the first moving fixture 5 further includes a cylinder 2-17 (as Figure 4 ), a cylinder connecting piece 2-18, a gripper connecting plate 2-4, a fixture connecting rod 2-3, a fixture gripper 2-2, a gripper fixing block 2-10, a square slider 2-8, a connecting plate square rail 2-9, and a fixture housing 2-1. The cylinder 2-17 is fixed to both the fixture base 2-14 and the fixture motor bracket 2-16. The upper half of the cylinder 2-17 is fixed to the fixture base 2-14 by screws, and its lower half is fixed to the fixture motor bracket 2-16 by screws, which can improve the stability of the cylinder 2-17 during operation; both ends of the cylinder connecting piece 2-18 are respectively connected to the cylinder rod of the cylinder 2-17 and the gripper connecting plate 2-4; both ends of the gripper connecting plate 2-4 are respectively connected to the cylinder connecting piece 2-18 and the fixture connecting rod 2-3, and a square slider 2-8 is fixed below the gripper connecting plate 2-4. The gripper connecting plate 2-4 can make horizontal movement on the connecting plate square rail 2-9 by means of the square slider 2-8; both ends of the fixture connecting rod 2-3 are respectively connected to the gripper connecting plate 2-4 and the fixture gripper 2-2 (as Figure 5 ); the number of the gripper fixing blocks 2-10 is 2, and they are installed on the fixture base 2-14 and are used to assist the rotation of the fixture gripper 2-2; the fixture gripper 2-2 is installed on the gripper fixing blocks 2-10 through a rotating shaft and can rotate on the gripper fixing blocks 2-10; the connecting plate square rail 2-9 is installed on the fixture base 2-14, and the square slider 2-8 is installed thereon to assist the movement of the gripper connecting plate 2-4; the fixture housing 2-1 is installed on the fixture base 2-14 to protect the parts inside the fixture housing 2-1 and prevent foreign objects from entering the interior.

[0024] Specifically, the first moving fixture 2 further includes a horizontal bearing group 2-11, a vertical bearing group 2-12, a fixture base gland 2-7, a first sensor 2-6, and fixture rubber pads 2-5. There are 2 groups of the horizontal bearing group 2-11, with each group containing 2 bearings. They are horizontally installed on the fixture base 2-14 and fixed with the fixture base gland 2-7 to prevent them from falling off. When the board passes through the fixture base 2-14, it can improve the passing efficiency of the board and prevent jamming. There are 2 groups of the vertical bearing group 2-12, with each group containing 3 bearings. They are vertically installed on the fixture base 2-14. The vertical bearing group 2-12 functions as a guide wheel to prevent the board from hitting the first moving fixture 2 when the board passes through the fixture base 2-14. The number of the first sensors 2-6 is 2, and they are separately installed on the fixture base gland 2-7. The 2 first sensors 2-6 are respectively installed close to the 2 horizontal bearing groups 2-11 at a certain distance to detect the presence of the board. The number of the fixture rubber pads 2-5 is 2, and they are respectively installed at both ends of the fixture gripper 2-2. When the first moving fixture 2 clamps the board, it can increase the friction between the fixture gripper 2-2 and the board, improve the efficiency and ability of clamping the board, and avoid damaging the board.

[0025] Specifically, the structures of the second moving fixture 3 and the third moving fixture 4 are the same as that of the first moving fixture 2 (except for the first sensor 2-6); the third moving fixture 4 further includes a second sensor 4-1 ( Figure 6 ), which is installed in the middle part of the fixture gripper 2-2 to detect the presence of the board.

[0026] The working process of the present invention is as follows, in combination with Figure 1 、 Figure 4 for illustration:

[0027] When a certain moving fixture needs to clamp and move the board, high-pressure gas surges into the cylinder 2-17. The cylinder rod of the cylinder 2-17 extends, pulling the cylinder connecting piece 2-18 to move. The cylinder connecting piece 2-18 drives the gripper connecting plate 2-4 to move. The gripper connecting plate 2-4 pulls the fixture link 2-3 to move. The movement of the fixture link 2-3 will force the fixture gripper 2-2 to rotate, and then the board can be clamped. By adjusting the pressure of the high-pressure gas, the clamping force of the fixture gripper 2-2 on the board can also be adjusted. After the board is clamped, the fixture servo motor 2-20 rotates, which can drive this moving fixture to make a horizontal movement and drive the board to move at the same time. There are 2 sensors on the first moving fixture 2 and the third moving fixture 3. By judging the combination of the signals of these 3 sensors, the control system can determine the length of the board, thus completing the determination of the board length.

[0028] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

[0029] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

Claims

1. A structure for measuring the size of a plate, comprising an anti-collision rubber pad, a first moving fixture, a second moving fixture, a third moving fixture, an inclined rack, and a bed square rail, characterized in that, The anti-collision rubber pad, the helical rack and the bed square rail are all installed on the bed. The anti-collision rubber pad is used to prevent the first moving fixture and the third moving fixture from rushing out of the working surface; the helical rack and the bed square rail are used to assist the first moving fixture, the second moving fixture and the third moving fixture to move; the first moving fixture, the second moving fixture and the third moving fixture are installed on the bed square rail and are used to drive the sheet material to move; a first sensor is installed on the first moving fixture, and a second sensor is installed on the third moving fixture. The first sensor and the second sensor are used to sense the presence or absence of the sheet material, and the electric control system determines the length of the sheet material according to the signals of the first sensor and the second sensor; the first moving fixture includes a flange slider, a fixture base, a fixture motor bracket, a helical gear, a reducer, and a fixture servo motor. The flange slider is installed on the bed square rail; the fixture base is installed on the flange slider, and the fixture base can move on the bed square rail by means of the flange slider; the fixture motor bracket is installed on the fixture base and is used to fix the reducer and the fixture servo motor; the helical gear is connected to the output end of the reducer and is engaged with the helical rack; the fixture servo motor is connected to the reducer, and the fixture servo motor provides power for the movement of the fixture base; the first moving fixture further includes a cylinder, a cylinder connecting piece, a gripper connecting plate, a fixture connecting rod, a fixture gripper, a gripper fixing block, a square slider, and a connecting plate square rail. The cylinder is fixedly connected to both the fixture base and the fixture motor bracket and provides clamping power for the fixture gripper; both ends of the cylinder connecting piece are respectively connected to the cylinder and the gripper connecting plate; both ends of the gripper connecting plate are respectively connected to the cylinder connecting piece and the fixture connecting rod, and the gripper connecting plate is fixed to the square slider. The gripper connecting plate can make a horizontal movement on the connecting plate square rail by means of the square slider; both ends of the fixture connecting rod are respectively connected to the gripper connecting plate and the fixture gripper; the fixture gripper is installed on the gripper fixing block and can rotate on the gripper fixing block. The power of the cylinder can finally make the fixture gripper rotate to clamp the sheet material; the connecting plate square rail is installed on the fixture base and can assist the gripper connecting plate to move.

2. The structure for measuring the size of a sheet according to claim 1, wherein, The first moving fixture further includes a horizontal bearing group, a vertical bearing group, a fixture base gland, a first sensor, and a fixture rubber pad. The horizontal bearing group is horizontally installed on the fixture base and is fixed by the fixture base gland to prevent it from falling off. The vertical bearing group is vertically installed on the fixture base. Both the horizontal bearing group and the vertical bearing group are used to assist the movement of the sheet material; the first sensor is installed on the fixture base gland and is used to detect the presence of the sheet material; the fixture rubber pad is on the fixture gripper and is used to prevent the first moving fixture from damaging the sheet material when clamping the sheet material.

3. The structure for measuring the size of a sheet according to claim 1, characterized in that, The structures of the second moving fixture and the third moving fixture are the same as that of the first moving fixture; the third moving fixture further includes a second sensor installed in the middle of the fixture gripper and is used to detect the presence of the sheet material.

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