CN218775419U - Right-angle bent metal plate angle calibrating device - Google Patents

Abstract

The utility model provides a right angle metal plate bending angle calibrating device, include: a platform; the pressing mechanism is movably arranged on the platform along a first horizontal direction, and a pressing plate of the pressing mechanism can move along a vertical direction so as to press the bottom plate of the right-angle bent metal plate on the platform; the pushing mechanism is arranged on the platform, a pushing plate of the pushing mechanism can move along a horizontal first direction to push a side plate of a bent metal plate to bend the angle of the metal plate in a calibration mode, wherein the pressing mechanism and the pushing plate have an adjustable first distance in the horizontal direction, the bottom of the pushing plate has a second distance with the platform, and the pressing plate and the pushing plate are arranged along the horizontal second direction. Through the cooperation of hold-down mechanism and pushing and pressing mechanism, the too big calibration problem of the angle of bending of right angle bending panel beating has been solved, has improved the yield, has practiced thrift manufacturing cost.

Description

Right-angle bent metal plate angle calibrating device

Technical Field

The utility model relates to a panel beating equipment technical field that bends especially relates to a right angle metal plate angle calibrating device that bends.

Background

Sheet metal processing wide application in each field, the panel beating is bent and is the key process that most spare parts take shape, and the final shape and the performance of product are directly influenced to the precision of panel beating angle of bending. At present, the most adoption bender bends among the sheet metal working process, and the bender is the machine that can bend the panel beating, and its structure mainly includes the support, goes up lower table, pinch-off blades, bends mould, bends down mould etc.. When the panel beating is bent and is add man-hour, the angle of bending error appears easily, for the angle of guaranteeing to bend accords with the designing requirement, through install the angle orthotic devices of bending on the bender and bend the angle and monitor and correct control.

Prior art 1 provides a portable bending angle correction device (CN 214053165U), which includes a device main body, a sensor main body, a switch key, a power plug, and a fixture block; the clamping block is detachably arranged at the bottom of the device main body, and the lower workbench of the bending machine is provided with a clamping block matched with the clamping block, so that the device main body can be detachably arranged on a clamping groove of the lower workbench of the bending machine through the clamping block through the clamping groove; the pair of sensor bodies are respectively and symmetrically arranged at two ends of the device body, so that the detection sensing elements embedded in the pair of sensor bodies are respectively positioned at two sides of the lower beam of the bending machine; the device main body is internally provided with a calculation host which is electrically connected with the detection sensing element, the switch key and the power plug are embedded on the device main body, and the calculation host is externally connected with a power supply through the switch key and the power plug. Prior art 1 integrates the angle correction device of bending to realize the quick assembly disassembly of the angle correction device of bending on the bender, improve portability, commonality and turnover rate of the angle correction device of bending. Although, the prior art can guarantee the precision control of panel beating bending in-process angle effectively through the angle orthotic devices of bending, still can have the problem that some panel beating bending angle precision is not enough because the problem of operation and the equipment wearing and tearing degree in the bender use.

The common problems of sheet metal bending are provided in the article of sheet metal bending quality control (10 th year 2020 of metalworking) in prior art 2, wherein the problems of operation such as improper pressure, wrong material parameter selection, improper width of a V-shaped groove of a lower die and the like are mentioned, so that the sheet metal bending angle is too large or too small; the bending angle is inconsistent due to the problems of inconsistent heights of the upper die and the lower die of the machine tool, inconsistent wear of the dies and the like.

Therefore, the problem to be solved by the technical personnel in the field is how to calibrate the angle of the bent metal plate with the bending angle which does not meet the requirement.

SUMMERY OF THE UTILITY MODEL

The technical problem that this disclosure will solve is how to carry out the angle correction to the panel beating of bending that the angle of bending that the above-mentioned does not conform to the requirement, is especially for the right angle panel beating of bending this disclosure through hold-down mechanism and pushing and pressing mechanism's cooperation, has solved the too big calibration problem of angle of bending of right angle panel beating.

In order to solve the technical problem, the embodiment of the present disclosure provides a device for calibrating a right-angle bent sheet metal angle, including: a platform; the pressing mechanism is movably arranged on the platform along a first horizontal direction, and a pressing plate of the pressing mechanism can move along a vertical direction so as to press the bottom plate of the right-angle bent metal plate on the platform; the pushing mechanism is arranged on the platform, a push plate of the pushing mechanism is movable along a first horizontal direction to calibrate the angle of the right-angle bent metal plate by using a side plate for pushing the right-angle bent metal plate, the pressing mechanism and the push plate have an adjustable first distance in the first horizontal direction, the bottom of the push plate and the platform have a second distance, and the pressing plate and the push plate are arranged along the second horizontal direction.

In some embodiments, the platform further comprises two guide rails, the two guide rails are parallel and arranged at two ends of the platform along the first horizontal direction, two ends of the pressing mechanism are respectively in sliding connection with the two guide rails, and two ends of the push plate are respectively in sliding connection with the two guide rails.

In some embodiments, the pressing mechanism is slidably connected with the guide rail through a first sliding block, and the push plate is slidably connected with the guide rail through a second sliding block.

In some embodiments, the first slider is provided with a locking mechanism for locking the first slider on the guide rail.

In some embodiments, the pressing mechanism further comprises two vertical plates, a top plate and a first lead screw for driving the pressing plate to move along the vertical direction, the two vertical plates are arranged in parallel, the bottom ends of the two vertical plates are respectively connected with the two guide rails in a sliding mode through the first sliding block, the two ends of the top plate are respectively connected with the top ends of the two vertical plates, a first hole is formed in the middle of the top plate, and the first lead screw penetrates through the first hole to be connected with the pressing plate in a rotating mode.

In some embodiments, the opposite side walls of the two vertical plates are both provided with sliding grooves along the vertical direction, and the two ends of the pressing plate are respectively slidably arranged in the sliding grooves on the two vertical plates.

In some embodiments, the pushing mechanism further includes a supporting plate, a transverse plate and a second lead screw for driving the pushing plate to move along the first horizontal direction, the transverse plate is disposed on the platform along the second horizontal direction, the supporting plate is disposed between the pressing mechanism and the transverse plate, and two ends of the supporting plate are respectively connected with the two guide rails in a sliding manner through a second slider, the second lead screw is arranged along the first horizontal direction, a second hole is formed in the middle of the transverse plate, the second lead screw penetrates through the second hole to be connected with the supporting plate in a rotating manner, and the pushing plate is mounted on the surface, close to the pressing mechanism, of the supporting plate.

In some embodiments, a first handle is arranged on the first lead screw for driving the first lead screw to rotate, and a second handle is arranged on the second lead screw for driving the second lead screw to rotate.

In some embodiments, a first nut is disposed on the top plate, the first nut is coaxial with the first hole, a first lead screw passes through the first nut and is in driving engagement therewith, a bottom end thereof is rotatably connected with the pressure plate, a top end thereof is connected with the first handle, a second nut is disposed on the cross plate, the second nut is coaxial with the second hole, a second lead screw passes through the second nut and is in driving engagement therewith, one end thereof is rotatably connected with the support plate, and the other end thereof is connected with the second handle.

In some embodiments, the first lead screw is rotationally coupled to the pressure plate via a first deep groove ball bearing, and the second lead screw is rotationally coupled to the support plate via a second deep groove ball bearing.

According to the technical scheme, the utility model provides an angle calibrating device of right angle panel beating of bending compresses tightly the bottom plate of right angle panel beating of bending on the platform through hold-down mechanism, and rethread pushing and pressing mechanism bulldozes the curb plate of right angle panel beating of bending with the too big angle of bending of calibration, through this device, has solved the problem that the angle of bending of right angle panel beating is not conform to the requirement, has improved the yield, has practiced thrift manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a calibration apparatus disclosed in an embodiment of the present disclosure;

FIG. 2 is a partial schematic view of a calibration device according to an embodiment of the disclosure;

fig. 3 is a side view of a calibration device as disclosed in an embodiment of the present disclosure.

Description of reference numerals:

1. a platform; 2. a hold-down mechanism; 3. a pushing mechanism; 4. bending the metal plate at right angles; 5. a guide rail; 21, pressing a plate; 22. a vertical plate; 23. a top plate; 24. a first lead screw; 25. a chute; 26. a first handle; 27. a first nut; 28. a first deep groove ball bearing; 31. pushing a plate; 32. a support plate; 33. a transverse plate; 34. a second lead screw; 36. a second handle; 37. a second nut; 38. a second deep groove ball bearing; 41. a base plate; 42. a side plate; 51. a first slider; 52. a second slider; x, a first horizontal direction; y, a second horizontal direction; z, vertical direction.

Detailed Description

Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are included to illustrate the principles of the disclosure, but are not intended to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but include all technical solutions falling within the scope of the claims.

These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of the components and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not restrictive, unless specifically stated otherwise.

It is noted that in the description of the present disclosure, unless otherwise indicated, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship merely to facilitate the description of the disclosure and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the disclosure. When the absolute position of the object being described changes, then the relative positional relationship may also change accordingly.

Moreover, the use of "first," "second," and similar words throughout this disclosure is not intended to imply any order, quantity, or importance, but rather merely to distinguish one element from another. "vertical" is not strictly vertical, but is within the tolerance of the error. "parallel" is not strictly parallel but within the tolerance of the error. The word "comprising" or "comprises", and the like, means that the element preceding the word comprises the element listed after the word, and does not exclude the possibility that other elements may also be included.

It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" in the description of the present disclosure are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood as appropriate to one of ordinary skill in the art. When a particular device is described as being between a first device and a second device, intervening devices may or may not be present between the particular device and the first device or the second device.

All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

As shown in fig. 1-3, the utility model discloses an angle calibrating device of right angle bending panel beating, include: a platform 1; the pressing mechanism 2 is movably arranged on the platform 1 along a first horizontal direction X, and a pressing plate 21 of the pressing mechanism 2 can move along a vertical direction Z to press the bottom plate 41 of the right-angle bent metal plate 4 on the platform 1; the pushing mechanism 3, the pushing mechanism 3 is arranged on the platform 1, the pushing plate 31 of the pushing mechanism 3 is movable along a first horizontal direction X to push the side plate 42 of the right-angle bent metal plate 4 to calibrate the angle of the right-angle bent metal plate 4, the pressing mechanism 2 and the pushing plate 31 have an adjustable first distance in the first horizontal direction X, the bottom of the pushing plate 31 has a second distance with the platform 1, and the pressing plate 21 and the pushing plate 31 are both arranged along a second horizontal Y direction. When the device is used, the right-angle bent metal plate 4 is placed on the platform 1, the pressing mechanism 2 and the pushing and pressing mechanism 3 are respectively located on two sides of a side plate 42 of the right-angle bent metal plate 4, the pressing mechanism 2 moves along a first horizontal direction X, the pressing plate 21 of the pressing mechanism 2 is placed above a bottom plate 41 of the right-angle bent metal plate 4, then the pressing plate 21 of the pressing mechanism 2 moves downwards along a vertical direction Z and is abutted against the bottom plate 41 of the right-angle bent metal plate 4, and the right-angle bent metal plate 4 is pressed on the platform 1; the right-angle bent metal plate 4 is pressed on the platform 1, the push plate 31 of the pushing mechanism 3 moves along the first horizontal direction X and abuts against the side plate 42 of the right-angle bent metal plate 4, and the side plate 42 of the right-angle bent metal plate 4 is squeezed to calibrate the bending angle of the right-angle bent metal plate 4.

Specifically, the pressing mechanism 2 and the push plate 31 have an adjustable first distance in the first horizontal direction X, so that the right-angle bent sheet metal 4 can be conveniently placed between the pressing mechanism 2 and the push plate 31 for correcting the bending angle; the bottom of the push plate 31 is a second distance away from the platform 1, so that the push plate 31 has a certain distance from a thrust point of a side plate 42 of the right-angle bent metal plate 4 to a joint of the bottom plate 41 and the side plate 42, and according to a lever principle, namely a power arm has a certain length, the moment for calibrating the angle of the right-angle bent metal plate 4 is ensured; the clamp plate 21 is arranged along the second horizontal Y direction, so that the uniformity of the pressure of the clamp plate 21 on the bottom plate 41 of the right-angle bent metal plate 4 is ensured, the push plate 31 is arranged along the second horizontal Y direction, the uniformity of the thrust of the push plate 31 on the side plate 42 of the right-angle bent metal plate 4 is ensured, and the calibration quality of the right-angle bent metal plate 4 at the bending angle is ensured. Further preferably, the pressing plate 21 and the pushing plate 31 are made of stainless steel to prevent rust.

In some embodiments, as shown in fig. 1, the calibration device further includes two guide rails 5, the two guide rails 5 are parallel and disposed on two ends of the platform 1 along the first horizontal direction X, two ends of the pressing mechanism 2 are slidably connected to the two guide rails 5, respectively, and two ends of the pushing plate 31 are slidably connected to the two guide rails 5, respectively. Specifically, the two guide rails 5 are arranged on the platform 1 in parallel and in equal length, the connection mode with the platform 1 is not limited, bolts and welding modes can be adopted, and the guide rails 5 can be installed on the platform 1 firmly. The pressing mechanism 2 and the push plate 31 can smoothly move along the first horizontal direction X by arranging the guide rail 5, and the use of the calibrating device is facilitated. Further preferably, the guide rail 5 is made of stainless steel to prevent rust.

In some embodiments, as shown in fig. 1, the pressing mechanism 2 is slidably connected to the guide rail 5 through a first slider 51, and the pushing plate 31 is slidably connected to the guide rail 5 through a second slider 52. The arrangement of the first sliding blocks 51 ensures that the pressing mechanism 2 can smoothly and stably slide on the guide rails 5, and specifically, two ends of the bottom of the pressing mechanism 2 are respectively and fixedly arranged on the first sliding blocks 51 on the two guide rails 5; the second slide blocks 52 ensure that the push plate 31 can smoothly and stably slide on the guide rails 5, and specifically, two ends of the bottom of the push plate 31 are respectively fixedly mounted on the second slide blocks 52 on the two guide rails 5. Further preferably, the first slider 51 and the second slider 52 are both made of stainless steel to prevent rust.

In some embodiments, the first slider 51 is provided with a locking mechanism for locking the first slider 51 on the guide rail 5. After the pressing plate 21 of the pressing mechanism 2 presses the bottom plate 41 of the right-angle bent metal plate 4 onto the platform 1, the first sliding block 51 is locked on the guide rail 5 through the locking mechanism, so that the influence on the angle calibration work caused by the sliding of the pressing mechanism 2 on the guide rail 5 due to the thrust of the pushing plate 31 is prevented. Further preferably, the first sliders 51 on both guide rails 5 are provided with a locking mechanism.

In some embodiments, as shown in fig. 1, the pressing mechanism 2 further includes two vertical plates 22, a top plate 23, and a first lead screw 24 for driving the pressing plate 21 to move along the vertical direction Z, the two vertical plates 22 are arranged in parallel, and the bottom ends of the two vertical plates 22 are respectively connected with the two guide rails 5 in a sliding manner through a first slider 51, the two ends of the top plate 23 are respectively connected with the top ends of the two vertical plates 22, a first hole is opened in the middle of the top plate 23, and the first lead screw 24 passes through the first hole and is rotatably connected with the pressing plate 21. Specifically, the bottom end of the vertical plate 22 is fixedly connected with the first sliding block 51, and both bolt connection and welding are adopted; the top plate 23 and the vertical plate 22 are also fixedly connected and can be connected by bolts and welded; the first hole is a circular hole, and the diameter of the first hole is matched with the diameter of the first lead screw 24. Further preferably, the upright plate 22, the top plate 23, and the first lead screw 24 are made of stainless steel to prevent rust.

In some embodiments, as shown in fig. 1, sliding grooves 25 are respectively opened on the opposite side walls of the two vertical plates 22 along the vertical direction Z, and both ends of the pressing plate 21 are respectively slidably disposed in the sliding grooves 25 on the two vertical plates 22. The platen 21 can be stably moved in the vertical direction Z without deflection and shaking by providing the slide groove 25.

In some embodiments, as shown in fig. 1, the pushing mechanism 3 further includes a supporting plate 32, a horizontal plate 33 and a second lead screw 34 for driving the pushing plate 31 to move along the first horizontal direction X, the horizontal plate 33 is disposed on the platform 1 along the second horizontal direction Y, the supporting plate 32 is disposed between the pressing mechanism 2 and the horizontal plate 33, and both ends are slidably connected to the two guide rails 5 through second sliders 52, respectively, the second lead screw 34 is disposed along the first horizontal direction X, a second hole is disposed in a middle portion of the horizontal plate 33, the second lead screw 34 passes through the second hole and is rotatably connected to the supporting plate 32, and the pushing plate 31 is mounted on a plate surface of the supporting plate 32 close to the pressing mechanism 2. Specifically, the transverse plate 33 is fixedly installed on the platform 1, and the transverse plate 33 and the platform 1 can be connected by bolts or welding as long as the transverse plate 33 is firmly installed on the platform 1; the supporting plate 32 is also arranged along the second horizontal direction Y, and both ends of the supporting plate 32 and the second sliding blocks 52 can be connected by bolts or welding, as long as both ends of the supporting plate 32 can be firmly mounted on the two second sliding blocks 52; the plate surface of the push plate 31 and the plate surface of the support plate 32 can be fixedly connected by bolts or welding, as long as the push plate 31 is firmly connected to the support plate 32. Further, to prevent rust, the support plate 32, the horizontal plate 33, and the second lead screw 34 are preferably made of stainless steel.

In some embodiments, as shown in fig. 1, in order to facilitate the worker to drive the first lead screw 24 and the second lead screw 34 to rotate, the first lead screw 24 is provided with a first handle 26 for driving the first lead screw 24 to rotate, and the second lead screw 34 is provided with a second handle 36 for driving the second lead screw 34 to rotate. Specifically, the first handle 26 and the first lead screw 24, and the second handle 36 and the second lead screw 34 can be welded or integrally formed, as long as the connection is ensured to be firm. It is further preferred that both the first handle 26 and the second handle 36 be covered with rubber sleeves to prevent the hands of the worker from being scratched during use.

In some embodiments, as shown in fig. 1 and 3, the top plate 23 is provided with a first nut 27, the first nut 27 is coaxial with the first hole, the first lead screw 24 passes through the first nut 27 and is in driving engagement therewith, the bottom end thereof is rotatably connected with the pressure plate 21, the top end thereof is connected with the first handle 26, the cross plate 33 is provided with a second nut 37, the second nut 37 is coaxial with the second hole, the second lead screw 34 passes through the second nut 37 and is in driving engagement therewith, one end thereof is rotatably connected with the support plate 32, and the other end thereof is connected with the second handle 36. The first nut 27 is arranged to ensure that the first lead screw 24 slides on the top plate 23 along the vertical direction Z, so as to drive the pressing plate 21 to move along the vertical direction Z; the second nut 37 is provided to ensure that the second lead screw 34 slides on the horizontal plate 33 along the first horizontal direction X, so as to drive the supporting plate 32 to move along the first horizontal direction X. Further preferably, the first nut 27 and the second nut 37 are both made of stainless steel to prevent rust.

In some embodiments, as shown in fig. 1-3, the first lead screw 24 is rotationally coupled to the pressure plate 21 via a first deep groove ball bearing 28, and the second lead screw 34 is rotationally coupled to the support plate 32 via a second deep groove ball bearing 38. Specifically, the first deep groove ball bearing 28 is fixedly connected with the pressing plate 21, and the bottom end of the first lead screw 24 is rotatably connected with the first deep groove ball bearing 28; the second deep groove ball bearing 38 is fixedly connected with the support plate 32, and one end of the second lead screw 34 is rotatably connected with the second deep groove ball bearing 38. Further preferably, the first deep groove ball bearing 28 and the second deep groove ball bearing 38 are both stainless steel to prevent rust.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict.

Claims (10)

1. The utility model provides a right angle metal plate bending angle calibrating device which characterized in that includes:

a platform (1);

the pressing mechanism (2) is movably arranged on the platform (1) along a first horizontal direction (X), and a pressing plate (21) of the pressing mechanism (2) can move along a vertical direction (Z) to press a bottom plate (41) of the right-angle bent metal plate (4) onto the platform (1);

the pushing mechanism (3) is arranged on the platform (1), a pushing plate (31) of the pushing mechanism (3) can move along the first horizontal direction (X) to push a side plate (42) of the right-angle bent metal plate (4) to calibrate the angle of the right-angle bent metal plate (4),

wherein the pressing mechanism (2) and the push plate (31) have an adjustable first distance in the first horizontal direction (X), the bottom of the push plate (31) has a second distance from the platform (1), and the pressure plate (21) and the push plate (31) are both arranged in a second horizontal direction (Y).

2. The right-angle bent sheet metal angle calibrating device according to claim 1, further comprising two guide rails (5), wherein the two guide rails (5) are arranged in parallel and arranged at two ends of the platform (1) along the first horizontal direction (X), two ends of the pressing mechanism (2) are respectively in sliding connection with the two guide rails (5), and two ends of the pushing plate (31) are respectively in sliding connection with the two guide rails (5).

3. The device for calibrating the sheet metal angle of a right-angle bend according to claim 2, characterized in that the pressing mechanism (2) is connected with the guide rail (5) in a sliding manner through a first sliding block (51), and the push plate (31) is connected with the guide rail (5) in a sliding manner through a second sliding block (52).

4. The device for calibrating the sheet metal angle of a right-angle bend according to claim 3, characterized in that a locking mechanism for locking the first slider (51) on the guide rail (5) is arranged on the first slider (51).

5. The right-angle bent sheet metal angle calibrating device according to claim 4, wherein the pressing mechanism (2) further comprises two vertical plates (22), a top plate (23) and a first lead screw (24) for driving the pressing plate (21) to move along the vertical direction (Z), the two vertical plates (22) are arranged in parallel, bottom ends of the two vertical plates are respectively connected with the two guide rails (5) in a sliding manner through the first sliding block (51), two ends of the top plate (23) are respectively connected with top ends of the two vertical plates (22), a first hole is formed in the middle of the top plate (23), and the first lead screw (24) penetrates through the first hole to be connected with the pressing plate (21) in a rotating manner.

6. The right-angle bent sheet metal angle calibrating device according to claim 5, wherein sliding grooves (25) are formed in the opposite side walls of the two vertical plates (22) along the vertical direction (Z), and two ends of the pressing plate (21) are respectively slidably arranged in the sliding grooves (25) of the two vertical plates (22).

7. The right-angle bending sheet metal angle calibrating device according to claim 6, wherein the pushing mechanism (3) further comprises a supporting plate (32), a transverse plate (33) and a second lead screw (34) for driving the pushing plate (31) to move along the first horizontal direction (X), the transverse plate (33) is arranged on the platform (1) along the second horizontal direction (Y), the supporting plate (32) is arranged between the pressing mechanism (2) and the transverse plate (33), two ends of the supporting plate are respectively connected with the two guide rails (5) in a sliding mode through the second sliding block (52), the second lead screw (34) is arranged along the first horizontal direction (X), a second hole is formed in the middle of the transverse plate (33), the second lead screw (34) penetrates through the second hole to be connected with the supporting plate (32) in a rotating mode, and the pushing plate (31) is mounted on the plate surface, close to the pressing mechanism (2), of the supporting plate (32).

8. The device for calibrating the sheet metal angle of a right-angle bend according to claim 7, characterized in that a first handle (26) for driving the first lead screw (24) to rotate is arranged on the first lead screw (24), and a second handle (36) for driving the second lead screw (34) to rotate is arranged on the second lead screw (34).

9. The right-angle bent sheet metal angle calibrating device according to claim 8, wherein a first nut (27) is arranged on the top plate (23), the first nut (27) is coaxial with the first hole, the first lead screw (24) penetrates through the first nut (27) and is in transmission engagement with the first nut, the bottom end of the first lead screw is in rotary connection with the pressure plate (21), the top end of the first lead screw is connected with the first handle (26), the transverse plate (33) is provided with a second nut (37), the second nut (37) is coaxial with the second hole, the second lead screw (34) penetrates through the second nut (37) and is in transmission engagement with the second nut, one end of the second lead screw is in rotary connection with the support plate (32), and the other end of the second lead screw is connected with the second handle (36).

10. The right-angle sheet metal bending angle calibration device according to claim 9, wherein the first lead screw (24) is rotatably connected with the pressure plate (21) through a first deep groove ball bearing (28), and the second lead screw (34) is rotatably connected with the support plate (32) through a second deep groove ball bearing (38).

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