Bending device

Abstract

The utility model provides a bending device. The bending device comprises a bending mechanism used for bending the to-be-machined plate, the bending mechanism comprises a supporting plate and a pressing plate hinged to the supporting plate, the supporting plate and the pressing plate jointly form a supporting face used for containing the to-be-machined plate, and the pressing plate is rotated to generate bending force acting on the to-be-machined plate. The bending device further comprises a fixing mechanism. The fixing mechanism comprises a locking part and a fixing part. The fixing mechanism has a movable state and a locking state; in the movable state, the fixing part can move relative to the locking part, so that a gap for inserting a to-be-processed plate is provided between the fixing part and the supporting surface; in the locking state, the locking part fixes the position of the fixing part, and therefore the fixing part fixes the to-be-machined plate inserted into the gap. According to the bending device, the bending operation of a small-area thin steel plate in the installation of an electric instrument can be simplified.

Description

Technical Field

[0001] The utility model relates to the field of electrical instrument installation engineering construction technology, in particular to a bending device. Background Art

[0002] In the field of electrical instrument installation and construction, steel plate bending usually adopts the die bending processing method. The steel plate material is held by a machine, and the positioning holes in the die are specified, and then the steel plate is bent to the required shape and bending angle by the machine. In addition, there is an older steel plate bending method: forging bending, which is to use a steel plate to hot-roll through a punch or press, and then use a die to bend the steel plate to the required angle and shape.

[0003] However, in the field of electrical instrument installation, there are a large number of small-thickness steel plates of different sizes that need to be bent, such as instrument installation plates, valve installation plates, cable routing plates, etc. Whether it is die bending or forging bending, it is impossible to efficiently bend small-thickness steel plates, the operation process is complicated, and the construction cost is high. Utility Model Content

[0004] The utility model aims to provide a bending device which can simplify the bending operation of a small-area thin steel plate in the installation of electrical instruments.

[0005] One aspect of the utility model provides a bending device. The bending device includes a bending mechanism for bending a plate to be processed, the bending mechanism includes a support plate and a pressure plate hinged to the support plate, the support plate and the pressure plate together form a support surface for placing the plate to be processed, and the pressure plate is rotated to generate a bending force acting on the plate to be processed; the bending device also includes a fixing mechanism, the fixing mechanism includes a locking part and a fixing part; the working state of the fixing mechanism includes an active state and a locking state; in the active state, the fixing part can move relative to the locking part, thereby providing a gap between the fixing part and the support plate for inserting the plate to be processed; in the locking state, the locking part fixes the position of the fixing part, thereby fixing the plate to be processed inserted into the gap.

[0006] In one embodiment, the fixing portion includes a first side edge for abutting against the plate to be processed, and the first side edge coincides with the rotation axis formed between the support plate and the pressure plate, so that the bending point of the plate to be processed is the abutment point between the first side edge and the plate to be processed.

[0007] In one embodiment, the locking portion includes an adjusting rod protruding from the support plate and a fastener for fixing the fixing portion to the adjusting rod; the fixing portion is sleeved on the adjusting rod, and the distance between the fixing portion and the support plate is adjusted by adjusting the height of the fastener on the adjusting rod.

[0008] In one embodiment, the fastener includes two fastening nuts, the adjusting rod is a screw rod, and the two fastening nuts are threadedly connected to the adjusting rod; the fixing portion is located between the two fastening nuts, and the distance between the fixing portion and the support plate is adjusted by adjusting the height of the two fastening nuts on the screw rod.

[0009] In one embodiment, the fixing portion includes a fixing piece, the fixing piece is provided with the first side edge, and the fixing piece has a raised portion for accommodating the plate to be processed; the fixing portion also includes a connecting piece fixedly connected to the raised portion, and the connecting piece is provided with a through hole for being sleeved on the adjusting rod.

[0010] In one embodiment, the fixing member is further provided with a second side edge opposite to the first side edge; the fixing mechanism further comprises a limiting portion protruding from the support plate, and the limiting portion is used to abut against the second side edge to limit the movement of the fixing member.

[0011] In one embodiment, the fixing portion is located above the supporting plate, the lower end surface of the supporting plate is provided with a first lower end plate perpendicular to the supporting plate, and the lower end surface of the pressing plate is provided with a second lower end plate perpendicular to the pressing plate, the first lower end plate and the second lower end plate abut against each other to form a supporting surface parallel to the horizontal plane, so that the pressing plate can rotate in a direction close to the supporting plate with the rotation axis as the axial direction when the plate to be processed needs to be bent.

[0012] In one embodiment, it further comprises a rotating mechanism for driving the pressing plate to rotate relative to the supporting plate, and the rotating mechanism is protruding from the pressing plate.

[0013] In one embodiment, the rotating mechanism is a rotating handle, which is arranged on the lower end surface of the pressure plate and the supporting surface, and the rotating handle protrudes downward; the rotating handle is arranged away from the fixing mechanism, and the rotating handle is perpendicular to the pressure plate.

[0014] In one embodiment, a supporting mechanism for supporting the bending mechanism is further included, and the supporting plate is fixedly disposed on the supporting mechanism.

[0015] The fixing mechanism of the bending device provided by the utility model can adjust a suitable gap for inserting the plate according to the thickness of the plate to be processed, and fix the position of the plate after the plate is inserted. Through the cooperation of the fixing mechanism and the bending mechanism, the plate can be bent by manually rotating the pressure plate, especially the small thickness steel plate in the installation of electrical instruments, which can improve the applicability of the bending device, and the structure and operation process are simple, the bending processing efficiency is high, the portability is high, and the economy is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a schematic diagram of an embodiment of a bending device according to the utility model. DETAILED DESCRIPTION

[0018] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are shown in the accompanying drawings. Each example is provided to explain the present invention, rather than to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations that fall within the scope of the appended claims and their equivalents.

[0019] In the field of electrical instrument installation, a large number of small-thickness steel plates of different sizes, such as instrument mounting plates, valve mounting plates, and cable routing plates, need to be bent. However, the traditional bending processing method has low efficiency, high construction cost, and complex operation with many dangerous factors, which is not conducive to the labor protection of construction workers.

[0020] Specifically, whether it is die bending or forging and casting bending, large-scale mechanical equipment and supporting molds are required. The operation process is cumbersome and not easy to get started. Professional construction personnel are required. At the same time, the daily maintenance and depreciation of large-scale tools and equipment must also be considered. Most of the steel plate bending in electrical and instrument installation is small-area steel plates below 5mm. The construction cost will be very high if the existing technology is used for bending. The use of lathes or other large-scale mechanical equipment to bend steel plates not only needs to be carried out in a workshop far away from the construction site, but also needs to replace different molds and operating procedures for different bending requirements, and the installation efficiency is low. If a small-thickness steel plate needs to be bent, but the workshop is not equipped with relevant molds and machine tools, welding and assembly are used instead of bending. The installation efficiency is low and the labor cost is increased. The steel plate after welding and assembly is lower than the steel plate after bending in terms of aesthetics and installation quality. The operation of large-scale tools and equipment is complicated and has many dangerous factors, which is not conducive to the labor protection of construction personnel and also reduces the efficiency of installation. There are a large number of small-thickness steel plates of different sizes at nuclear power sites, such as instrument installation plates, valve installation plates, and cable routing plates. After bending, they are basically "concave" shapes of different sizes. Existing technology cannot complete them with low cost and high efficiency.

[0021] As used herein, the terms "upper" and "lower" refer to spatial relationships to describe the relationship of one element or feature to other elements or features shown in the drawings, with reference to the drawings. Figure 1The bending device is shown in a placement state for ease of description, however the state may vary, therefore, these spatially-related terms are intended to include other orientations of elements or components in use or operation in addition to the orientation depicted in the drawings. The terms "first" and "second" may be used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of each component.

[0022] Figure 1 The overall structure of an embodiment of a bending device 10 of the utility model is shown. The bending device 10 includes a bending mechanism 100 for bending a plate to be processed, the bending mechanism 100 includes a support plate 110 and a pressing plate 120 hinged to the support plate 110, the support plate 110 and the pressing plate 120 together form a support surface for placing the plate to be processed, and the pressing plate 120 is rotated to generate a bending force acting on the plate to be processed. The bending device 10 also includes a fixing mechanism 200, and the fixing mechanism 200 includes a locking portion 210 and a fixing portion 220. The working state of the fixing mechanism 200 includes an active state and a locked state. In the active state, the fixing portion 220 can move relative to the locking portion 210, whereby a gap 230 is provided between the fixing portion 220 and the support plate 110 for inserting the plate to be processed. In the locked state, the locking portion 210 fixes the position of the fixing portion 220, whereby the fixing portion 220 presses the plate to be processed inserted into the gap 230. The plate to be processed includes a steel plate, especially a small thickness steel plate, such as a steel plate with a thickness of less than 5 mm.

[0023] The fixing mechanism 200 of the bending device 10 provided by the utility model can adjust a suitable gap 230 for inserting the plate according to the thickness of the plate to be processed. Through the cooperation of the fixing mechanism 200 and the bending mechanism 100, the plate can be bent by manually rotating the pressing plate 120, especially the small thickness steel plate used in electrical instrument installation, which can improve the applicability of the bending device 10.

[0024] Compared with the traditional steel plate bending device, the bending device 10 of the utility model has a simple structure and operation process, does not require professional construction personnel, is easier to use, can improve installation efficiency, and has lower construction costs.

[0025] In one embodiment, the bending device 10 of the present invention further includes a support mechanism 400 for supporting the bending mechanism 100. The support plate 110 is fixedly disposed on the support mechanism 400. The support mechanism 400 can play a role in stabilizing and fixing the support. Figure 1 The support plate 110 is arranged above the support mechanism 400. The support mechanism 400 has a certain height to facilitate the construction personnel to operate. Of course, the height of the support mechanism 400 can be adaptively changed according to the application scenario. The support mechanism 400 can specifically include a plurality of support columns 410. Figure 1In the embodiment shown, there are three support columns 410, which provides good stability. To further improve stability, the number of support columns 410 can be increased. Figure 1 The lower ends of the two support columns 410 on the right are connected by a connecting plate, which can further improve the supporting effect. Figure 1 The distance between the left support column 410 and the other two support columns 410 can be adjusted. If the space on the construction site is small, the above distance can be appropriately shortened to facilitate placement and storage.

[0026] In one embodiment, the bending device 10 further includes a rotating mechanism 300 for driving the pressing plate 120 to rotate relative to the supporting plate 110, and the rotating mechanism 300 is convexly disposed on the pressing plate 120. The protruding rotating mechanism 300 is convenient for construction personnel to operate. By designing the length and force application point position of the rotating mechanism 300, the torque manually applied to the rotating mechanism 300 can be effectively transmitted to the pressing plate 120, thereby improving the bending efficiency.

[0027] exist Figure 1 In a specific embodiment shown, the rotating mechanism 300 is a rotating handle (hereinafter referred to as the rotating handle by reference numeral 300), which is arranged on the lower end surface of the pressing plate 120 relative to the supporting surface, and the rotating handle 300 protrudes downward. The supporting mechanism 400 having a certain height allows a certain space below the pressing plate 120. The rotating handle 300 in this embodiment can make full use of the above space, which can save space and facilitate transportation compared with the technical solution arranged above the pressing plate 120. Further, the rotating handle 300 is arranged away from the fixing mechanism 200, and the rotating handle 300 is perpendicular to the pressing plate 120. According to the principle of lever, the greater the distance between the rotating handle 300 and the rotation axis AA, the smaller the force required to rotate the pressing plate 120 at the same angle. Therefore, the force that the construction personnel need to apply to the rotating handle 300 can be smaller, that is, a small area of ​​steel plate can be bent. The above effect can also be achieved by increasing the length of the rotating handle 300.

[0028] like Figure 1 As shown, in a specific embodiment, the support plate 110 and the pressing plate 120 are connected by a hinge, the support plate 110 is arranged above the support mechanism 400, and the pressing plate 120 can rotate with the connection between the support plate 110 and the pressing plate 120 as a rotation axis, that is, Figure 1 The rotation axis AA shown is the axis of rotation. The hinge structure is relatively simple, easy to install, easy to maintain and replace, and takes up little space.

[0029] In one embodiment, the fixing portion 220 includes a first side edge 221a for contacting with the plate to be processed. Figure 1As shown, the fixing portion 220 is located above the support plate 110, and the gap 230 is the distance between the first side edge 221a above and the support surface below. Further, the first side edge 221a coincides with the rotation axis AA formed between the support plate 110 and the pressing plate 120, so that the bending part of the plate to be processed is the abutment between the first side edge 221a and the plate to be processed. It can be understood that when the steel plate is inserted into the gap 230 and fixed between the support plate 110 and the fixing portion 220, the lower end surface of the steel plate is supported by the support surface, and the upper end surface of the steel plate abuts against the first side edge 221a; when the pressing plate 120 is rotated by a certain angle, the steel plate bends at the rotation axis AA under the action of the bending force, and at the same time, the first side edge 221a abuts against the steel plate to make the bending more targeted, and the bending effect can also be better.

[0030] In one embodiment, the fixing portion 220 includes a fixing member 221, the fixing member 221 is provided with a first side edge 221a, and the fixing member 221 has a raised portion 221b for accommodating a plate to be processed. Figure 1 As shown, the raised portion 221b is located at the connection between the fixing member 221 and the connecting member 222, and is raised upward, so that a space for accommodating the steel plate is formed between the raised portion 221b and the support plate 110. Generally speaking, a large number of small-thickness steel plates of different sizes, such as instrument installation plates, valve installation plates, and cable routing plates at nuclear power sites, are basically "concave"-shaped plates of different sizes after being bent according to the drawings. The space formed by the raised portion 221b can accommodate at least part of the "concave"-shaped steel plates, making it convenient to bend the remaining steel plates.

[0031] In one embodiment, the fixing member 221 is further provided with a second side edge (not shown) opposite to the first side edge 221a. The fixing mechanism 200 further includes a stopper 240 protruding from the support plate 110, and the stopper 240 is used to abut against the second side edge (not shown) to limit the movement of the fixing member 221. When the pressing plate 120 rotates, the first side edge 221a abutting against the steel plate will bear a large load, which may cause the fixing member 221 to move away from the pressing plate 120. The stopper 240 can abut against the fixing member 221 on the opposite side of the first side edge 221a, which is conducive to maintaining the position of the fixing member 221.

[0032] The fixing member 221 may be an angle steel, which is arranged along the extension direction of the pressing plate 120. The raised portion 221b in one embodiment of the utility model is the back of the angle steel, and the first side 221a and the second side are the two tip parts of the angle steel. The angle steel has low cost and high bending and compression resistance, and can withstand the load and moment of the steel plate bending.

[0033] In one embodiment, the fixing portion 220 is located above the support plate 110, the lower end surface of the support plate 110 is provided with a first lower end plate 130 perpendicular to the support plate 110, and the lower end surface of the pressing plate 120 is provided with a second lower end plate 140 perpendicular to the pressing plate 120. The first lower end plate 130 and the second lower end plate 140 abut against each other to form a support surface parallel to the horizontal plane, so that the pressing plate 120 rotates in a direction close to the support plate 110 with the rotation axis AA as the axial direction when the plate to be processed needs to be bent. Figure 1 As shown, the side end of the first lower end plate 130 is vertically connected to the side end of the support plate 110, and the side end of the second lower end plate 140 is vertically connected to the side end of the pressing plate 120. When the side surfaces of the first lower end plate 130 and the second lower end plate 140 are tightly attached, the first lower end plate 130 and the second lower end plate 140 provide support for the pressing plate 120, so that the support surface is parallel to the horizontal plane, which is convenient for placing the steel plate.

[0034] The support plate 110 and the first lower end plate 130, as well as the pressing plate 120 and the second lower end plate 140 can be integrally formed to have higher strength; further, they can be angle steels. Figure 1 As shown, the two angle steels are symmetrically arranged and the two right-angle openings are opposite to each other, and the two angle steels are connected by a hinge.

[0035] In one embodiment, the locking portion 210 includes an adjustment rod 211 protruding from the support plate 110 and a fastener 212 for fixing the fixing portion 220 to the adjustment rod 211. The fixing portion 220 is sleeved on the adjustment rod 211. In the active state, the distance between the fixing portion 220 and the support plate 110 is adjusted by adjusting the height of the fastener 212 on the adjustment rod 211. In the locked state, the fastener 212 is fixed on the adjustment rod 211, and the position of the fixing portion 220 is fixed, which plays a role in better fixing the plate to be processed.

[0036] exist Figure 1 In a specific embodiment shown, the fastener 212 includes two fastening nuts (hereinafter, reference numeral 212 indicates the fastening nuts), the adjusting rod 211 is a screw (hereinafter, reference numeral 211 indicates the screw), and the two fastening nuts 212 are both threadedly connected to the screw 211. The fixing portion 220 is located between the two fastening nuts 212, and the distance between the fixing portion 220 and the support plate 110 is adjusted by adjusting the height of the two fastening nuts 212 on the screw 211. The fixing portion 220 also includes a connecting member 222 fixedly connected to the protruding portion 221b, and the connecting member 222 is provided with a through hole (not shown) for being sleeved on the adjusting rod, i.e., the screw 211.

[0037] The two fastening nuts 212 are fastening nuts threadedly connected to the same screw rod 211. Figure 1In the illustrated embodiment, the bending device 10 includes two locking parts 210, which are respectively arranged on the support plate 110 near the two ends of the fixing member 221, so as to improve the stability of the lifting and lowering of the fixing member 221. Each locking part 210 includes two fastening nuts 212 and a screw rod 211. By adjusting the positions of the two fastening nuts 212 on the same screw rod 211, the fixing member 221 can be fixed at a certain height, so that the fixing member 221 can be adaptively lifted and lowered according to the thickness of the plate to be processed, such as a thin steel plate, to achieve a better fixing effect of the steel plate.

[0038] The connection mode between the screw rod 211 and the support plate 110 may be welding, that is, the screw rod 211 is welded to the support plate 110. The screw rod 211 may also be threadedly fixedly connected to the support plate 110 through a mounting hole (not shown) on the support plate 110.

[0039] The operation process of the bending device 10 provided by the utility model is as follows:

[0040] When in use, by rotating the fastening nuts 212 on both sides of the fixing member 221, the fixing member 221 is lifted to a suitable height according to the thickness of the steel plate to form a gap 230. Then the steel plate is inserted into the gap 230, and the fastening nuts 212 are fixed so that the fixing member 221 presses the steel plate. The part to be bent of the steel plate is aligned with the rotation axis AA, and the steel plate is placed on the support surface. The rotating mechanism 300 is started by manpower to drive the pressing plate 120 to bend the steel plate to a suitable angle. After use, the bending device 10 can be moved to an idle position by manpower.

[0041] The bending device 10 provided by the utility model has a simple structure, improves the mobility of the steel plate bending device 10, and can be carried by a single person; simplifies the operation of bending the steel plate, and improves the installation progress of related items; and reduces the construction cost. The steel plate bending machine is aimed at the construction of electrical instruments on the nuclear power site. The bent steel plate is highly consistent with the construction drawings and has applicability.

[0042] The bending device 10 provided by the utility model can be put into use in the air compressor room of a nuclear power plant, radioactive machine repair and decontamination workshop and other related BOP (Balance of Plant) workshops, and the actual bending operation method is simple, stable and reliable. It saves a lot of manpower and material consumption, and also saves a lot of installation time. The utility model has the characteristics of economy, reliability, strong operability, small engineering quantity, low cost, etc., making the subsequent steel plate bending equipment more applicable.

[0043] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope defined by the claims of the utility model.

Claims

1. A bending device, comprising a bending mechanism for bending a plate to be processed, the bending mechanism comprising a support plate and a pressing plate hinged to the support plate, the support plate and the pressing plate jointly forming a support surface for placing the plate to be processed, the pressing plate being rotated to generate a bending force acting on the plate to be processed; It is characterized in that The bending device further comprises a fixing mechanism, wherein the fixing mechanism comprises a locking portion and a fixing portion; The working state of the fixing mechanism includes an active state and a locked state; In the active state, the fixing portion can move relative to the locking portion, thereby providing a gap between the fixing portion and the supporting plate for inserting the plate to be processed; In the locked state, the locking portion fixes the position of the fixing portion, whereby the fixing portion fixes the plate to be processed inserted into the gap.

2. The bending device according to claim 1, characterized in that: The fixing portion includes a first side edge for abutting against the plate to be processed, and the first side edge coincides with the rotation axis formed between the support plate and the pressure plate, so that the bending part of the plate to be processed is the abutment part between the first side edge and the plate to be processed.

3. The bending device according to claim 2, characterized in that: The locking portion includes an adjusting rod protruding from the support plate and a fastener for fixing the fixing portion to the adjusting rod; The fixing portion is sleeved on the adjusting rod, and the distance between the fixing portion and the supporting plate is adjusted by adjusting the height of the fastener on the adjusting rod.

4. The bending device according to claim 3, characterized in that: The fastener comprises two fastening nuts, the adjusting rod is a screw rod, and the two fastening nuts are both threadedly connected to the adjusting rod; The fixing portion is located between the two fastening nuts, and the distance between the fixing portion and the support plate is adjusted by adjusting the height of the two fastening nuts on the screw rod.

5. The bending device according to claim 3, characterized in that: The fixing portion comprises a fixing piece, the fixing piece is provided with the first side edge, and the fixing piece has a convex portion for accommodating the plate to be processed; The fixing portion further comprises a connecting piece fixedly connected to the raised portion, and the connecting piece is provided with a through hole for being sleeved on the adjusting rod.

6. The bending device according to claim 5, characterized in that: The fixing member is further provided with a second side edge opposite to the first side edge; The fixing mechanism further comprises a limiting portion protruding from the supporting plate, wherein the limiting portion is used to abut against the second side edge to limit the movement of the fixing member.

7. The bending device according to claim 2, characterized in that: The fixing portion is located above the supporting plate, the lower end surface of the supporting plate is provided with a first lower end plate perpendicular to the supporting plate, the lower end surface of the pressing plate is provided with a second lower end plate perpendicular to the pressing plate, the first lower end plate and the second lower end plate abut against each other to form the supporting surface parallel to the horizontal plane, so that the pressing plate can rotate in a direction close to the supporting plate with the rotation axis as the axial direction when the plate to be processed needs to be bent.

8. The bending device according to claim 1, characterized in that: It also includes a rotating mechanism for driving the pressing plate to rotate relative to the supporting plate, and the rotating mechanism is protruding from the pressing plate.

9. The bending device according to claim 8, characterized in that: The rotating mechanism is a rotating handle, which is arranged on the lower end surface of the pressing plate and the supporting surface, and the rotating handle protrudes downward; The rotating handle is arranged away from the fixing mechanism, and the rotating handle is perpendicular to the pressing plate.

10. The bending device according to claim 1, characterized in that: It also includes a supporting mechanism for supporting the bending mechanism, and the supporting plate is fixedly arranged on the supporting mechanism.

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