A parallelism detection device for a CNC multi-sided bending center and its use method

Abstract

The present invention provides a parallelism detection device for a CNC polygonal bending center, comprising a support plate, a mounting slot provided on the support plate, a reference surface, a contact surface, and a detection surface provided on the support plate, the contact surface and the detection surface being parallel and perpendicular to the reference surface; a sliding block provided in the mounting slot, a guide pin provided at one end of the slider facing the contact surface, and an elastic component provided on the guide pin; an upper top block provided on the upper portion of the slider, the upper top block being higher than the upper surface of the support plate; a lower top block provided on the lower portion of the slider, an elongated through hole provided at the bottom of the mounting slot, the lower top block extending through the elongated through hole and extending out of the lower surface of the support plate; and a displacement detector provided on the slider or the support plate for detecting displacement data of the slider relative to the support plate. This bending center mold parallelism detection device has a simple structure, high measurement accuracy, ease of use, and a wide range of applications.

Description

Technical Field

[0001] The present invention belongs to the field of bending equipment detection devices, specifically to an improvement of an existing CNC multilateral bending center mold parallelism detection device, and provides a method for using the same. Background Art

[0002] The CNC multilateral bending center is a sheet metal forming machine designed for cold rolled sheet metal processing, which uses the equipped mold to bend cold metal sheets into workpieces of various geometric cross-sectional shapes.

[0003] The working process of the CNC multilateral bending center: the upper pressing die presses the workpiece firmly on the lower pressing die, and then the bending of the workpiece is completed by pressing down the upper folding die on the machine or pushing up the lower folding die.

[0004] Based on the working process of the CNC multilateral bending center, it can be seen that the parallelism between the upper folding die and the lower folding die port, as well as the parallelism between the lower folding die and the upper folding die port, affect the final molding size of the product. Calibrating these two parallelisms is a key link in ensuring product quality.

[0005] Existing parallelism detection mostly uses photoelectric detection mechanisms for calibration. In actual use, there are the following technical problems: this type of equipment is large in size and relatively complicated to operate. In addition, different types of bending centers require the design and matching of different photoelectric detection mechanisms, which results in high cost of use.

[0006] Therefore, there is an urgent need to design a bending center mold parallelism detection device that is compact, easy to use and highly applicable. Summary of the Invention

[0007] In response to the above technical problems, the present invention provides a parallelism detection device for a CNC multilateral bending center and a method of using the same. The bending center mold parallelism detection device has a simple structure, high measurement accuracy, is easy to use and has a wide range of applications.

[0008] The technical solution adopted by the present invention is: a parallelism detection device for a CNC polygonal bending center, comprising a carrier plate, a mounting groove being provided on the carrier plate, a reference surface, a contact surface and a detection surface being provided on the carrier plate, the contact surface and the detection surface being parallel, and the contact surface and the detection surface being perpendicular to the reference surface respectively;

[0009] A sliding block is provided in the mounting groove, a guide pin is provided at one end of the sliding block facing the contact surface, a socket matching the guide pin is provided on the inner wall of the mounting groove, and an elastic component is provided between the end of the sliding block facing the contact surface and the mounting groove;

[0010] An upper top block is provided on the upper portion of the slider, and the upper top block is higher than the upper surface of the bearing plate; a lower top block is provided on the lower portion of the slider, and an elongated through hole is provided at the bottom of the mounting groove, and the lower top block passes through the elongated through hole and extends out of the lower surface of the bearing plate;

[0011] It also includes a displacement detector, which is arranged on the slider or the carrying plate and is used to detect displacement data of the slider relative to the carrying plate.

[0012] Preferably, at least one slide rail is provided in the installation groove, and a slide block adapted to the slide rail is provided on the slider, and a sliding connection is achieved through the cooperation between the slide rail and the slide block.

[0013] Preferably, a slide rail groove is provided in the installation groove, and the slide rail is fixed in the slide rail groove by screws.

[0014] Preferably, the elastic component is a spring, and the spring is sleeved outside the guide pin.

[0015] Preferably, the upper top block and the lower top block are both cylindrical.

[0016] Preferably, the displacement detector is a dial indicator.

[0017] Preferably, the fixing seat of the dial indicator is provided on the slider, and the dial indicator head is connected to the detection surface.

[0018] A method for using the parallelism detection device for a CNC multi-sided bending center is also provided, specifically:

[0019] When checking the parallelism between the folding lower die and the pressing upper die:

[0020] 1) Adjust the hemming beam and the edge pressing beam at the bending center so that the hemming lower die and the edge pressing upper die table are in the appropriate relative upper and lower positions. Place the carrier plate on the edge pressing lower die table so that the contact surface fits tightly with the end face of the hemming lower die, and the upper block fits tightly with the end face of the edge pressing upper die, and the elastic component is in a compressed state.

[0021] 2) Adjust the displacement detector, mark the distance between a point on the slider and the detection surface, set it as the reference zero point, and set the value to A1;

[0022] 3) Place the carrier plate on the other side of the bottom die table so that the contact surface fits tightly against the end face of the bottom die, and the top block fits tightly against the end face of the top die. The elastic component is in a compressed state. Use a displacement detector to mark the distance between the same point on the slider and the detection surface to obtain a reference value A2. Compare the difference between A2 and A1 to obtain the deviation in parallelism between the bottom die and the top die.

[0023] When checking the parallelism of the end faces of the upper folding die and the lower press die:

[0024] 1) Adjust the hemming beam and the edge holding beam at the bending center so that the hemming upper die and the edge holding lower die are in the appropriate relative upper and lower positions. Place the carrier plate on the edge holding lower die table so that the contact surface fits tightly with the end face of the hemming upper die, and the lower top block fits tightly with the end face of the edge holding lower die, and the elastic component is in a compressed state.

[0025] 2) Adjust the displacement detector, mark the distance between a point on the slider and the detection surface, set it as the reference zero point, and set the value to B1;

[0026] 3) Place the carrier plate on the other side of the bottom die table so that the contact surface fits tightly with the end face of the upper die and the lower top block fits tightly with the end face of the bottom die. The elastic component is in a compressed state. Use the displacement detector to mark the distance between the same point on the slider and the detection surface to obtain the reference value B2. Compare the difference between B2 and B1 to obtain the deviation of the parallelism between the end faces of the upper die and the bottom die.

[0027] The beneficial effects of the present invention are as follows: 1. The parallelism of the bending center mold is measured by using the distance the slider moves on the carrying plate. The principle is simple, the device cost is low, and the method of use is easy to master;

[0028] 2. The load-bearing plate is small in size and can be applied to different types of bending machines. Only one piece of this device is needed to meet the parallelism calibration of multiple bending machines, which greatly reduces the purchase cost and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention,

[0030] Figure 2 It is a structural diagram of the load-bearing plate.

[0031] Figure 3 is a top view of the load-bearing plate.

[0032] Figure 4 It is the cross-sectional view of AA.

[0033] Figure 5 This is a cross-sectional view of BB.

[0034] Figure 6 It is a structural diagram of the bending center.

[0035] Figure 7 This is a schematic diagram of the structure for detecting the parallelism between the folding lower die and the pressing upper die.

[0036] Figure 8 This is a structural diagram for detecting the parallelism between the upper folding die and the lower pressing die.

[0037] In the figure: 1 is a load-bearing plate, 11 is a contact surface, 12 is a detection surface, 13 is a socket, 14 is a slide rail, 15 is a reference surface, 16 is a slide block, 2 is a slider, 21 is an upper top block, 22 is a lower top block, 23 is a guide pin, 3 is a spring, 4 is a dial indicator, 41 is a dial base, 42 is a dial head, 5 is a bending center, 50 is a folding beam, 51 is a folding upper die, 52 is a folding lower die, 53 is a folding upper die, 54 is a folding lower die, and 55 is a folding beam. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "inside", "outside", "front", "back" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0040] Figures 1 to 5 The invention discloses a parallelism detection device for a CNC multi-sided bending center, comprising a carrier plate 1, a mounting groove being provided on the carrier plate 1, a reference surface 15, a contact surface 11 and a detection surface 12 being provided on the carrier plate 1, the contact surface 11 and the detection surface 12 being parallel, and the contact surface 11 and the detection surface 12 being perpendicular to the reference surface 15 respectively;

[0041] A sliding block 2 is provided in the mounting groove, and a guide pin 23 is provided at one end of the slider 2 facing the contact surface 11. A socket 13 matching the guide pin 23 is provided on the inner wall of the mounting groove. An elastic component is provided on the guide pin 23. In this embodiment, the elastic component is a spring 3. The spring 3 is sleeved on the outside of the guide pin 23. The sleeve connection method has good stability.

[0042] An upper top block 21 is provided on the upper portion of the slider 2, and the upper top block 21 is higher than the upper surface of the carrier plate 1; a lower top block 22 is provided on the lower portion of the slider 2, and an elongated through hole is provided at the bottom of the mounting groove. The lower top block 22 passes through the elongated through hole and extends out of the lower surface of the carrier plate 1. In this embodiment, both the upper top block 21 and the lower top block 22 are cylindrical;

[0043] The displacement detector is also included. The displacement detector is set on the slider 2 or the carrier plate 1 and is used to detect the displacement data of the slider 2 relative to the carrier plate 1. Figure 1In this embodiment, the displacement detection component is a dial indicator 4, a dial indicator base 41 of which is provided on the slider 2, and a dial indicator needle 42 of which is in contact with the detection surface 12. The dial indicator 4 is a commonly used component, is easily available, and has a high measurement accuracy of up to one hundredth of a millimeter.

[0044] See also Figures 2 to 5 In this embodiment, two slide rail slots are provided in the mounting slot, into which slide rails 14 are fixed by screws. Slide blocks 16 are provided on the slider 2 by screws, and the slide rails 14 and the slide blocks 16 are adapted to the slide rails 14. The slide rails 14 and the slide blocks 16 cooperate to achieve a sliding connection. The provision of the slide rail slots can further reduce the height and weight of the entire device, making it easier to use.

[0045] The method of using the device in this embodiment is as follows:

[0046] See also Figure 6 and Figure 7 When checking the parallelism between the folding lower die 54 and the pressing upper die 51:

[0047] 1) Adjust the hemming beam 50 and the edge holding beam 55 of the bending center 5 so that the hemming lower die 54 and the edge holding upper die 51 are in appropriate relative upper and lower positions. Place the carrier plate 1 on one side of the edge holding lower die 52 so that the contact surface 11 is in close contact with the end surface of the hemming lower die 54 and the upper block 21 is in close contact with the end surface of the edge holding upper die 51. The spring 3 is in a compressed state.

[0048] 2) Adjust the dial indicator 4, mark the distance between a point on the slider 4 and the detection surface, and set it as the reference value A1;

[0049] 3) Place the carrier plate 1 on the other side of the table of the lower pressing die 52, so that the contact surface 11 is tightly fitted with the end surface of the lower folding die 54, and the upper block 21 is tightly fitted with the end surface of the upper pressing die 51. Use the dial indicator 4 to mark the distance between the same point on the slider and the detection surface 12 to obtain the reference value A2. Compare the values of A1 and A2 to obtain the deviation of the parallelism between the lower folding die 54 and the upper pressing die 51. If A1 is less than A2, the side where A2 is located is tilted outward relative to the side where A1 is located. If A1 is greater than A2, the opposite is true. The staff adjusts the equipment accuracy according to the value.

[0050] See also Figure 6 and Figure 8 When testing the parallelism of the end faces of the folding upper die 53 and the pressing lower die 52:

[0051] 1) Adjust the hemming beam 50 and the edge pressing beam 55 of the bending center 5 so that the hemming upper die 53 and the edge pressing lower die 52 of the bending center 5 are in appropriate relative upper and lower positions, place the carrier plate 1 on the table of the edge pressing lower die 52, make the contact surface 11 fit tightly with the end surface of the hemming upper die 53, and the lower top block 22 fit tightly with the end surface of the edge pressing lower die 52, and the spring 3 is in a compressed state;

[0052] 2) Adjust the dial indicator 4, mark the distance between a point on the slider 2 and the detection surface 12, set it as the reference zero point, and set the value to B1;

[0053] 3) Place the carrier plate 1 on the other side of the table of the lower pressing die 52, so that the contact surface 11 is tightly fitted with the end face of the upper folding die 53, and the lower top block 22 is tightly fitted with the end face of the lower pressing die 52, and the spring 3 is in a compressed state; use the displacement detector to mark the distance between the same point on the slider and the detection surface, obtain the reference value B2, and compare the difference between B2 and B1 to obtain the deviation of the parallelism between the end faces of the upper folding die 53 and the lower pressing die 52; if B1 is less than B2, the side where B2 is located is tilted outward relative to the side where B1 is located, and if B1 is greater than B2, the opposite is true. The staff adjusts the equipment accuracy according to the value.

[0054] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A method for using a parallelism detection device for a CNC multilateral bending center, wherein the parallelism detection device comprises a carrier plate, a mounting groove is provided on the carrier plate, a reference surface, a contact surface and a detection surface are provided on the carrier plate, the contact surface and the detection surface are parallel, and the contact surface and the detection surface are respectively perpendicular to the reference surface; a sliding block is provided in the mounting groove, a guide pin is provided at one end of the slider facing the contact surface, a socket matching the guide pin is provided on the inner wall of the mounting groove, an elastic component is provided between the end of the slider facing the contact surface and the mounting groove; an upper top is provided on the upper part of the slider The cam is fixed to a position adjacent to the support rail, and the cam is secured to a position adjacent to the support rail, wherein the cam is secured to a position adjacent to the support rail. The cam is secured to a position adjacent to the support rail, wherein the cam is secured to a position adjacent to the support rail. When checking the parallelism between the folding lower die and the pressing upper die: 1) Adjust the hemming beam and the edge pressing beam at the bending center so that the hemming lower die and the edge pressing upper die table are in the appropriate relative upper and lower positions. Place the carrier plate on the edge pressing lower die table so that the contact surface fits tightly with the end face of the hemming lower die, and the upper block fits tightly with the end face of the edge pressing upper die, and the elastic component is in a compressed state. 2) Adjust the displacement detector, mark the distance between a point on the slider and the detection surface, set it as the reference zero point, and set the value to A1; 3) Place the carrier plate on the other side of the bottom die table so that the contact surface fits tightly against the end face of the bottom die, and the top block fits tightly against the end face of the top die. The elastic component is in a compressed state. Use a displacement detector to mark the distance between the same point on the slider and the detection surface to obtain a reference value A2. Compare the difference between A2 and A1 to obtain the deviation in parallelism between the bottom die and the top die. When checking the parallelism of the end faces of the upper folding die and the lower pressing die: 1) Adjust the hemming beam and the edge holding beam at the bending center so that the hemming upper die and the edge holding lower die are in the appropriate relative upper and lower positions. Place the carrier plate on the edge holding lower die table so that the contact surface fits tightly with the end face of the hemming upper die, and the lower top block fits tightly with the end face of the edge holding lower die, and the elastic component is in a compressed state. 2) Adjust the displacement detector, mark the distance between a point on the slider and the detection surface, set it as the reference zero point, and set the value to B1; 3) Place the carrier plate on the other side of the bottom die table so that the contact surface fits tightly with the end face of the upper die and the lower top block fits tightly with the end face of the bottom die. The elastic component is in a compressed state. Use the displacement detector to mark the distance between the same point on the slider and the detection surface to obtain the reference value B2. Compare the difference between B2 and B1 to obtain the deviation of the parallelism between the end faces of the upper die and the bottom die.

2. The method for using the parallelism detection device for a CNC multilateral bending center according to claim 1, wherein: The elastic component is a spring, and the spring is sleeved outside the guide pin.

3. The method for using the parallelism detection device for a CNC multilateral bending center according to claim 1, wherein: The upper top block and the lower top block are both cylindrical.

4. The method for using the parallelism detection device for a CNC multilateral bending center according to claim 1, wherein: The displacement detector is a dial indicator.

5. The method for using the parallelism detection device for a CNC multilateral bending center according to claim 4, wherein: The fixing seat of the dial indicator is arranged on the sliding block, and the dial indicator head is connected with the detection surface.

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