Clamping and bending device

Abstract

The utility model belongs to the technical field of bending devices, and particularly relates to a clamping and bending device which comprises a workbench, side rods are symmetrically arranged on the upper side of the workbench, a cross rod is arranged on the upper sides of the side rods, first hydraulic telescopic rods are symmetrically arranged on the upper side of the cross rod, and the output ends of the first hydraulic telescopic rods penetrate through the cross rod to the lower side to be provided with an upper tool apron. A cutter pressing block is arranged on the lower side of the upper cutter holder, a lower die is arranged on the lower side of the cutter pressing block, and the lower die comprises a die block, an adjusting groove, a sliding block, a bending plate and a bolt rod. When the bending width needs to be changed, the bolt rod is directly screwed, the bolt rod rotates, the bolt rod and the sliding block rotate in a threaded mode, the sliding block can move in the adjusting groove after being rotated by the threads, the threaded connection directions of the sliding block and the bolt rod in the same adjusting groove are opposite, and the sliding block can move in the opposite direction. The sliding blocks can drive the bending plates to be close to or away from each other, so that the distance between the bending plates is quickly adjusted, the lower die does not need to be replaced, and machining convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending devices, and in particular relates to a clamping and bending device. Background Art

[0002] When metal sheet workpieces are bent, hydraulic bending machines are generally used. The hydraulic bending machine presses the metal sheet workpiece onto the lower die through a pressure block to bend it into shape. At present, for some integrated press-bending lower dies, the inner distance of the die groove is generally fixed. When performing some bending processes with unchanged depth but varying width, it is troublesome to replace the lower die, and the inner distance of the die groove cannot be adjusted quickly. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a clamping and bending device to solve the problem that when a metal plate workpiece is bent, a hydraulic bending machine is generally used. The hydraulic bending machine presses the metal plate workpiece onto the lower die through a pressure cutter block to bend it into shape. At present, for some integrated press-bending lower dies, the inner distance of the die groove is generally fixed. When performing some bending processes with a constant depth but a changing width, it is troublesome to replace the lower die, and the inner distance of the die groove cannot be adjusted quickly.

[0004] To achieve the above objectives, the technical solution adopted by the utility model is as follows: a clamping and bending device comprises a workbench, the upper side of the workbench is symmetrically provided with side rods, the upper side of the side rods is provided with a cross bar, the upper side of the cross bar is symmetrically provided with a hydraulic telescopic rod 1, the output end of the hydraulic telescopic rod 1 passes through the cross bar to the lower side where an upper tool seat is provided, the lower side of the upper tool seat is provided with a pressure knife block, the lower side of the pressure knife block is provided with a lower die, and the lower die comprises a module, an adjusting groove, a sliding block, a bending plate and a bolt rod, the module is arranged on the upper side of the workbench, and adjusting grooves are symmetrically opened on both sides of the upper side of the module, sliding blocks are slidably arranged on both sides of the inner side of the adjusting groove, a bending plate is arranged on the upper side of the sliding block, a bolt rod is rotatably arranged on one side of the module corresponding to the adjusting groove, the bolt rod passes through the inner side of the adjusting groove and is threadedly connected to the sliding block, and the threaded connection direction of the sliding block and the bolt rod in the same adjusting groove is opposite.

[0005] The beneficial effects of the utility model are as follows: when the bending width needs to be changed, the bolt rod is directly screwed, the bolt rod rotates, the bolt rod and the sliding block thread rotates, and the sliding block moves in the adjustment groove after the thread rotates. The sliding block in the same adjustment groove is in the opposite direction of the thread connection with the bolt rod, and the sliding block moves in the opposite direction. The sliding block drives the bending plates to move closer or farther away, thereby quickly adjusting the spacing between the bending plates without replacing the lower die, thereby increasing processing convenience.

[0006] In order to make the two bolt rods rotate synchronously;

[0007] As a further improvement of the above technical solution: the bolt rod passes through the module to the other side where a transmission wheel is arranged, and a transmission belt is arranged between the transmission wheels for transmission.

[0008] The beneficial effect of this improvement is that the bolt rod passes through the module to the other side where a transmission wheel is arranged, a transmission belt is arranged between the transmission wheels, and the transmission wheel is arranged to transmit power through the transmission belt. Only by turning one bolt rod can the two bolt rods rotate synchronously, which is convenient for adjusting the bending plate.

[0009] In order to quickly replace and install the lower mold;

[0010] As a further improvement of the above technical solution: a mold base is arranged on the lower side of the lower mold, and the mold base is arranged on the upper side of the workbench. A placement groove is opened on the upper side of the mold base, and the lower mold is placed inside the placement groove. Hydraulic telescopic rods three are symmetrically arranged on both sides of the mold base, and the output ends of the hydraulic telescopic rods three are both extended to the inner side of the placement groove to provide clamping rods, and the clamping rods are arranged on both sides of the module.

[0011] The beneficial effects of this improvement are: a mold base is set, the lower mold is placed in the placement groove, the hydraulic telescopic rod three is started, and the output end of the hydraulic telescopic rod three pushes the clamping rod to clamp and fix the module, so that the lower mold can be quickly replaced and installed and clamped when needed.

[0012] To increase the clamping protection on the sides of the module;

[0013] As a further improvement of the above technical solution: a rubber layer is provided on one side of the clamping rod close to the module.

[0014] The beneficial effect of this improvement is that a rubber layer is provided on the side of the clamping rod close to the module to increase the clamping protection for the side of the module.

[0015] In order to facilitate the quick replacement of the blade block;

[0016] As a further improvement of the above technical solution: the knife pressing block includes a fixed plate, a connecting plate, a clamping rod and a knife block, the fixed plate is fixedly connected to the upper knife seat by bolts, a connecting plate is provided in the middle part of the lower side of the fixed plate, clamping rods are symmetrically provided on both sides of the connecting plate, and a plurality of knife blocks are provided on the lower side of the clamping rod through sliding clamping of the clamping rod.

[0017] The beneficial effects of this improvement are as follows: the fixing plate is fixedly connected with the upper knife seat by bolts, a connecting plate is provided in the middle of the lower side of the fixing plate, clamping rods are symmetrically provided on both sides of the connecting plate, a plurality of knife blocks are provided on the lower side of the clamping rods through sliding clamping of the clamping rods, the knife blocks can together form a long row of knife blocks, a single knife block can be disassembled by sliding the clamping rod to one side, so as to facilitate the quick replacement of the knife blocks.

[0018] In order to increase the stability of the knife block;

[0019] As a further improvement of the above technical solution: the sliding contact surfaces of the knife block and the clamping rod are both rough grid groove surfaces.

[0020] The beneficial effect of this improvement is that the sliding contact surfaces of the knife block and the clamping rod are both rough grid groove surfaces, which increases the static friction between the knife block and the clamping rod and increases the stability of the knife block.

[0021] To restrict both sides of the sheet metal workpiece;

[0022] As a further improvement of the above technical solution: a hydraulic telescopic rod 2 is arranged on the same side of the side rods, and a limit plate is arranged on the side where the output ends of the hydraulic telescopic rods 2 are close to each other.

[0023] The beneficial effect of this improvement is: a hydraulic telescopic rod 2 is set, and the output end of the hydraulic telescopic rod 2 pushes the limit plate to both sides of the metal plate workpiece, which can limit both sides of the metal plate workpiece during bending and forming to avoid deflection of the metal plate workpiece.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the connection structure between the middle mold base and the lower mold of the utility model;

[0027] Figure 3 It is a side view of the connection structure between the middle mold base and the lower mold of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the lower mold in the utility model;

[0029] Figure 5 This is a structural schematic diagram of the medium pressure knife block of the utility model;

[0030] In the figure: 1. workbench; 2. side rod; 3. cross bar; 4. hydraulic telescopic rod one; 5. upper knife seat; 6. knife pressing block; 61. fixing plate; 62. connecting plate; 63. clamping rod; 64. knife block; 7. lower die; 71. module; 72. adjustment slot; 73. sliding block; 74. bending plate; 75. bolt rod; 76. transmission wheel; 8. die seat; 81. placement slot; 82. hydraulic telescopic rod three; 83. clamping rod; 9. hydraulic telescopic rod two; 10. limit plate. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] like Figure 1 — Figure 5As shown: a clamping and bending device, including a workbench 1, a side rod 2 is symmetrically arranged on the upper side of the workbench 1, a cross rod 3 is arranged on the upper side of the side rod 2, a hydraulic telescopic rod 4 is symmetrically arranged on the upper side of the cross rod 3, the output end of the hydraulic telescopic rod 4 passes through the cross rod 3 to the lower side where an upper knife seat 5 is arranged, a knife pressing block 6 is arranged on the lower side of the upper knife seat 5, a lower die 7 is arranged on the lower side of the knife pressing block 6, the lower die 7 includes a module 71, an adjustment slot 72, a sliding block 73, a bending plate 74 and a bolt rod 75, the module 71 is arranged on the upper side of the workbench 1, and the upper sides of the module 71 are symmetrically opened There is an adjustment groove 72, and sliding blocks 73 are slidably arranged on both sides of the inner side of the adjustment groove 72. A bending plate 74 is arranged on the upper side of the sliding block 73. A bolt rod 75 is rotatably arranged on one side of the module 71 corresponding to the adjustment groove 72. The bolt rod 75 penetrates the inner side of the adjustment groove 72 and is threadedly connected to the sliding block 73. The threaded connection direction of the sliding block 73 and the bolt rod 75 in the same adjustment groove 72 is opposite. When the bending width needs to be changed, the bolt rod 75 is directly screwed, the bolt rod 75 rotates, the bolt rod 75 and the sliding block 73 rotate threadedly, and the sliding block 73 moves in the adjustment groove 72 after the thread is rotated. The threaded connection direction of the sliding block 73 and the bolt rod 75 in the same adjusting groove 72 is opposite, and the sliding block 73 will move in the opposite direction, and the sliding block 73 will drive the bending plate 74 to move closer or farther, so as to quickly adjust the spacing between the bending plates 74 without replacing the lower mold 7, thereby increasing the processing convenience. The bolt rod 75 passes through the module 71 to the other side where a transmission wheel 76 is provided, and a transmission belt is provided between the transmission wheels 76. The bolt rod 75 passes through the module 71 to the other side where a transmission wheel 76 is provided, and a transmission belt is provided between the transmission wheels 76. The transmission wheel 76 is set to be transmitted through the transmission belt. By screwing one bolt rod 75, the two bolt rods 75 can be rotated synchronously, which is convenient for adjusting the bending plate 74. A die base 8 is provided on the lower side of the lower die 7, and the die base 8 is provided on the upper side of the workbench 1. A placement groove 81 is provided on the upper side of the die base 8. The lower die 7 is placed inside the placement groove 81. Hydraulic telescopic rods 3 82 are symmetrically provided on both sides of the die base 8. The output ends of the hydraulic telescopic rods 3 82 are all penetrated through the placement groove 81 and clamping rods 83 are provided inside. The clamping rods 83 are provided on both sides of the module 71. The die base 8 is provided, and the lower die 7 is placed in the placement groove 81. The hydraulic telescopic rods 3 82 are started.The output end of the hydraulic telescopic rod 3 82 pushes the clamping rod 83 to clamp and fix the module 71, so as to facilitate the rapid replacement and installation and clamping of the lower mold 7 when needed. The clamping rod 83 is provided with a rubber layer on the side close to the module 71, and the clamping rod 83 is provided with a rubber layer on the side close to the module 71 to increase the clamping protection of the side of the module 71. The knife pressing block 6 includes a fixed plate 61, a connecting plate 62, a clamping rod 63 and a knife block 64. The fixed plate 61 is fixedly connected to the upper knife seat 5 with bolts, and a connecting plate 62 is provided in the middle of the lower side of the fixed plate 61, and clamping rods 63 are symmetrically provided on both sides of the connecting plate 62. A plurality of knife blocks 64 are provided on the lower side of the clamping rod 63 through sliding clamping of the clamping rod 63. The fixed plate 61 is fixedly connected to the upper knife seat 5 with bolts, and a connecting plate 62 is provided in the middle of the lower side of the fixed plate 61, and clamping rods 63 are symmetrically provided on both sides of the connecting plate 62. , The lower side of the clamp rod 63 is provided with a plurality of blade blocks 64 through the sliding clamping connection of the clamp rod 63. The blade blocks 64 can form a long row of blade blocks together. A single blade block 64 can be disassembled by sliding to one side through the clamp rod 63, which is convenient for quick replacement of the blade block 64. The sliding contact surfaces of the blade block 64 and the clamp rod 63 are both rough grid groove surfaces. The sliding contact surfaces of the blade block 64 and the clamp rod 63 are both rough grid groove surfaces, which increase the static friction between the blade block 64 and the clamp rod 63 and increase the stability of the blade block 64. The same side of the side rod 2 is provided with a hydraulic telescopic rod 2 9. The output end of the hydraulic telescopic rod 2 9 is provided with a limit plate 10 toward the side close to each other. The hydraulic telescopic rod 2 9 is provided. The output end of the hydraulic telescopic rod 2 9 pushes the limit plate 10 to both sides of the metal plate workpiece, which can limit both sides of the metal plate workpiece during bending and forming to avoid the metal plate workpiece from deflecting. ,

[0033] The working principle and use process of this utility model:

[0034] When in use, place the metal plate workpiece between the press block 6 and the lower die 7, start the hydraulic telescopic rod 4, the output end of the hydraulic telescopic rod 4 pushes down the upper knife seat 5, the upper knife seat 5 pushes down the press block 6, the press block 6 presses the metal plate workpiece down to the upper side of the lower die 7 for bending and forming, when the bending width needs to be changed, directly screw the bolt rod 75, the bolt rod 75 rotates, the bolt rod 75 and the sliding block 73 rotate in thread, the sliding block 73 is rotated by the thread, it will move in the adjusting groove 72, the sliding block 73 in the same adjusting groove 72 is connected in the opposite direction to the thread of the bolt rod 75 The sliding block 73 will move in the opposite direction, and the sliding block 73 will drive the bending plate 74 to move closer or farther, so as to quickly adjust the spacing between the bending plates 74, without replacing the lower mold 7, thereby increasing the processing convenience. In addition, when in use, the bolt rod 75 passes through the module 71 to the other side where a transmission wheel 76 is provided, and a transmission belt is provided between the transmission wheels 76. The transmission wheels 76 are provided with transmission belts. Only one bolt rod 75 needs to be twisted to make the two bolt rods 75 rotate synchronously, which is convenient for adjusting the bending plates 74. In addition, a mold base 8 and a lower mold 7 are provided. It is placed in the placement slot 81, and the hydraulic telescopic rod 3 82 is started. The output end of the hydraulic telescopic rod 3 82 pushes the clamping rod 83 to clamp and fix the module 71, so as to facilitate the rapid replacement and installation of the lower mold 7 when needed. In addition, a rubber layer is provided on the side of the clamping rod 83 close to the module 71 to increase the clamping protection of the side of the module 71. In addition, the fixing plate 61 is fixedly connected with the upper tool holder 5 by bolts, and a connecting plate 62 is provided in the middle of the lower side of the fixing plate 61. The two sides of the connecting plate 62 are symmetrically provided with clamping rods 63, and the lower side of the clamping rod 63 is provided with a A plurality of knife blocks 64 can together form a long row of knife blocks. A single knife block 64 can be disassembled by sliding to one side through the clamping rod 63, which is convenient for quick replacement of the knife block 64. The sliding contact surfaces of the knife block 64 and the clamping rod 63 are both rough grid groove surfaces, which increases the static friction between the knife block 64 and the clamping rod 63 and increases the stability of the knife block 64. In addition, a hydraulic telescopic rod 29 is provided, and the output end of the hydraulic telescopic rod 29 pushes the limit plate 10 to both sides of the metal plate workpiece, which can limit both sides of the metal plate workpiece during bending and forming to avoid the metal plate workpiece from being skewed.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A clamping and bending device, characterized in that: The invention comprises a workbench (1), wherein a side rod (2) is symmetrically arranged on the upper side of the workbench (1), a cross rod (3) is arranged on the upper side of the side rod (2), a hydraulic telescopic rod (4) is symmetrically arranged on the upper side of the cross rod (3), an output end of the hydraulic telescopic rod (4) passes through the cross rod (3) to the lower side where an upper knife seat (5) is arranged, a knife pressing block (6) is arranged on the lower side of the upper knife seat (5), a lower die (7) is arranged on the lower side of the knife pressing block (6), and the lower die (7) comprises a module (71), an adjustment slot (72), a sliding block (73), a bending plate (74) and a bolt rod (75), wherein the The module (71) is arranged on the upper side of the workbench (1), and adjustment grooves (72) are symmetrically provided on both sides of the upper side of the module (71). Sliding blocks (73) are slidably provided on both sides of the inner side of the adjustment groove (72), and a bending plate (74) is provided on the upper side of the sliding block (73). A bolt rod (75) is rotatably provided on one side of the module (71) corresponding to the adjustment groove (72), and the bolt rod (75) penetrates the inner side of the adjustment groove (72) and is threadedly connected with the sliding block (73), and the threaded connection directions of the sliding block (73) and the bolt rod (75) in the same adjustment groove (72) are opposite.

2. A clamping and bending device according to claim 1, characterized in that: The bolt rod (75) passes through the module (71) to the other side where a transmission wheel (76) is provided, and a transmission belt is provided between the transmission wheels (76) for transmission.

3. A clamping and bending device according to claim 1, characterized in that: A die base (8) is arranged at the lower side of the lower die (7), and the die base (8) is arranged at the upper side of the workbench (1). A placement groove (81) is opened at the upper side of the die base (8), and the lower die (7) is placed inside the placement groove (81). Hydraulic telescopic rods (82) are symmetrically arranged on both sides of the die base (8), and the output ends of the hydraulic telescopic rods (82) are both extended through the placement groove (81) and are provided with clamping rods (83) inside, and the clamping rods (83) are arranged on both sides of the module (71).

4. A clamping and bending device according to claim 3, characterized in that: A rubber layer is provided on one side of the clamping rod (83) close to the module (71).

5. The clamping and bending device according to claim 1, characterized in that: The knife pressing block (6) comprises a fixing plate (61), a connecting plate (62), a clamping rod (63) and a knife block (64); the fixing plate (61) is fixedly connected to the upper knife seat (5) by bolts; a connecting plate (62) is arranged in the middle of the lower side of the fixing plate (61); clamping rods (63) are symmetrically arranged on both sides of the connecting plate (62); and a plurality of knife blocks (64) are arranged on the lower side of the clamping rod (63) through sliding clamping of the clamping rod (63).

6. A clamping and bending device according to claim 5, characterized in that: The sliding contact surfaces of the blade block (64) and the clamping rod (63) are both rough grid groove surfaces.

7. The clamping and bending device according to claim 1, characterized in that: A hydraulic telescopic rod 2 (9) is provided on the same side of the side rod (2), and a limit plate (10) is provided on the output ends of the hydraulic telescopic rods 2 (9) toward the side close to each other.

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