A bending knife micro-pull compensation adjusting mechanism and a bending knife device

Abstract

The utility model relates to the technical field of bending equipment, and particularly relates to a bending knife micro -pull compensation adjusting mechanism and bending knife device, including the tool rest, first adjusting board, second adjusting board, bending knife body, connecting assembly and compensation adjusting assembly, the surface of first adjusting board is equipped with a plurality of first inclined step surfaces, second adjusting board is equipped with a plurality of second inclined step surfaces with a plurality of first inclined step surfaces one -to -one corresponding match, the inclined angle between a plurality of first inclined step surfaces with first direction gradually reduces from the middle region of bending knife body to both ends setting, compensation adjusting assembly is used for adjusting the relative position of second adjusting board and first adjusting board, to jack up the middle part of bending knife body, the utility model can realize the stepless regulation of the thickness of first adjusting board and second adjusting board whole, can stepless jack up the middle part of bending knife body, adapts to different bending demand, guarantees bending accuracy, and the adjustment is convenient.

Description

Technical Field

[0001] This utility model relates to the field of bending equipment technology, and in particular to a bending knife micro-tension compensation adjustment mechanism and bending knife device. Background Technology

[0002] Currently, existing bending centers are generally equipped with a pressing mechanism and a bending mechanism. The pressing mechanism clamps the sheet metal, and the bending mechanism bends the sheet metal using a bending cutter. When bending a long workpiece, the bending angle in the middle of the workpiece is larger than that at both ends. After bending, the angle of the entire workpiece is inconsistent, forming a faint "arch," which is known as the bending cutter deflection phenomenon. Currently, a thin copper or iron sheet is placed in the middle of the bending cutter to artificially lift the middle part of the bending cutter and form a pre-compensated "arch." However, this method is difficult to guarantee the accuracy of the "arch," and frequent adjustments to the thickness and position of the shim affect the efficiency of bending adjustment. Utility Model Content The purpose of this utility model is to provide a micro-tension compensation adjustment mechanism and a bending knife device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0003] The technical solution adopted to solve the above-mentioned technical problems is as follows: This utility model provides a micro-tension compensation adjustment mechanism for bending knives, comprising: Knife holder; A first adjusting plate is disposed on the tool holder along the first direction. One surface of the first adjusting plate is provided with a plurality of first inclined step surfaces arranged along the first direction. The first inclined step surfaces are inclined along the first direction. The second adjusting plate extends along the first direction and is located on the same side of the first adjusting plate and the first inclined step surface. The surface of the second adjusting plate facing the first adjusting plate is provided with a plurality of second inclined step surfaces that correspond one-to-one with the plurality of first inclined step surfaces. A bending blade extends along the first direction and is disposed on the side of the two second adjusting plates facing away from the first adjusting plate. The inclination angle between the plurality of first inclined step surfaces and the first direction gradually decreases from the middle region of the bending blade towards both ends. A connecting component is connected between the tool holder, the first adjusting plate, the second adjusting plate and the bending blade body to sequentially and tightly lock the first adjusting plate, the second adjusting plate and the bending blade body onto the tool holder; The compensation adjustment component is used to adjust the relative position of the second adjustment plate and the first adjustment plate in the first direction to lift the middle part of the bending blade body.

[0004] As a further improvement to the above technical solution, there are two first adjustment plates, which are arranged along the first direction. The inclination angle between the plurality of first inclined step surfaces and the first direction gradually decreases from one end of the two first adjustment plates that are close to each other to the other end. The plurality of first inclined step surfaces on the two first adjustment plates are symmetrically arranged in the first direction. There are two second adjustment plates, which are respectively arranged on the same side of the two first adjustment plates and the first inclined step surfaces.

[0005] As a further improvement to the above technical solution, the connecting assembly includes multiple connecting bolts, the first adjusting plate is provided with multiple first mounting holes, the second adjusting plate is provided with multiple second mounting holes, the bending blade body is provided with multiple third mounting holes, and the connecting bolts pass through the third mounting holes, the second mounting holes and the first mounting holes in sequence and are threadedly connected to the blade holder.

[0006] As a further improvement to the above technical solution, the first mounting hole is a circular hole, the second mounting hole is a strip-shaped hole extending along the first direction, and the second mounting hole is slidably disposed relative to the connecting bolt along the first direction.

[0007] As a further improvement to the above technical solution, the compensation adjustment component is connected to the two second adjustment plates respectively to drive the two second adjustment plates to reciprocate along the first direction.

[0008] As a further improvement to the above technical solution, the compensation adjustment assembly includes two adjustment bolts, which are symmetrically threaded to both ends of the tool holder, and are rotatably fixedly connected to the two second adjustment plates respectively.

[0009] As a further improvement to the above technical solution, the front side of the tool holder is provided with a limiting groove extending in a first direction, and two first adjusting plates and two second adjusting plates are disposed in the limiting groove.

[0010] As a further improvement to the above technical solution, the first adjusting plate, the second adjusting plate, the bending blade body, and the blade holder are arranged sequentially along the second direction. One end of the bending blade body along the third direction is provided with a bending blade. The blade holder is provided with an abutting step. The abutting step abuts against the end of the bending blade body facing away from the bending blade. The first direction, the second direction, and the third direction are arranged orthogonally to each other.

[0011] Furthermore, this utility model proposes a bending knife device, including the bending knife micro-tension compensation adjustment mechanism, and also includes a first bending drive mechanism and a second bending drive mechanism. The first bending drive mechanism is used to drive the knife holder to reciprocate along a second direction, and the second bending drive mechanism is used to drive the knife holder to reciprocate along a third direction. The first direction, the second direction, and the third direction are orthogonally arranged to each other.

[0012] As a further improvement to the above technical solution, two bending blades are provided, and the two bending blades are arranged at a distance from each other along the third direction.

[0013] The beneficial effects of this utility model are: In use, according to the actual bending compensation requirements, the relative positions of the second and first adjustment plates in the first direction are adjusted by the compensation adjustment component. This adjusts the relative positions of the first and second inclined step surfaces in the first direction. Since the inclination angles between the multiple first inclined step surfaces and the first direction gradually decrease from the middle area of ​​the bending cutter body towards both ends, when the first and second inclined step surfaces are misaligned relative to each other along the first direction, the overall thickness of the first and second adjustment plates can be changed, thereby positioning the first and second adjustment plates as a whole in the middle of the bending cutter body. The thickness of the region increases, and the thickness gradually decreases from the middle region of the bending cutter body towards both ends. Then, the first adjusting plate, the second adjusting plate, and the bending cutter body are sequentially and tightly locked onto the cutter holder to lift the middle part of the bending cutter body, forming an arched structure. This utility model achieves stepless adjustment of the overall thickness of the first adjusting plate and the second adjusting plate by adjusting the relative position between the first inclined step surface and the second inclined step surface along the first direction. It can steplessly lift the middle part of the bending cutter body to form arched structures of different sizes to adapt to different bending requirements, ensure bending accuracy, facilitate adjustment, and improve the efficiency of bending processing.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a top cross-sectional view of an embodiment of the bending knife micro-tension compensation adjustment mechanism provided by this utility model; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is an exploded top view of an embodiment of the bending knife micro-tension compensation adjustment mechanism provided by this utility model; Figure 4 This is an exploded view of an embodiment of the bending knife device provided by this utility model; Figure 5 yes Figure 4 A magnified view of part B in the middle section; Figure 6 This is a flowchart of an embodiment of the micro-tension compensation adjustment method for bending knives provided by this utility model; Figure 7 This is a schematic diagram of an embodiment of the bending knife device provided by this utility model; Figure 8 This is a side view of an embodiment of the bending knife device provided by this utility model; Icon labels: Tool holder 100; mounting screw hole 110; limiting groove 120; First adjusting plate 200; First inclined stepped surface 210; First mounting hole 220; Second adjusting plate 300; Second inclined step surface 310; Second mounting hole 320; Bending blade body 400; third mounting hole 410; bending blade 420; Adjusting bolt 500; First bending drive mechanism 600; fixed base 610; movable base 620; front and rear drive structure 630; Second bending drive mechanism 700; upper and lower drive structure 710. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this utility model, not all embodiments.

[0021] Reference Figures 1-5 The micro-tension compensation adjustment mechanism for bending knives of this utility model is illustrated in the following embodiment: like Figures 1 to 3 As shown, the bending knife micro-tension compensation adjustment mechanism of this utility model includes: a knife holder 100, a first adjustment plate 200, a second adjustment plate 300, a bending knife body 400, a connecting component, and a compensation adjustment component.

[0022] like Figure 3 and Figure 4 As shown, there are two first adjustment plates 200, which extend along a first direction. In this embodiment, the first direction is defined as the left-right direction. In some other embodiments, the first direction may be other directions.

[0023] Furthermore, the two first adjusting plates 200 are arranged in a left-right direction on the front side of the tool holder 100, such as... Figure 2 and Figure 5 As shown, the front side of the two first adjusting plates 200 is provided with a plurality of first inclined step surfaces 210 arranged in the left-right direction. The first inclined step surfaces 210 are inclined in the left-right direction. The inclination angle between the plurality of first inclined step surfaces 210 and the left-right direction gradually decreases from one end of the two first adjusting plates 200 that is close to each other to the other end. The plurality of first inclined step surfaces 210 on the two first adjusting plates 200 are symmetrically arranged in the left-right direction. It can be understood that the inclination angle of the first inclined step surface 210 on the left first adjusting plate 200 gradually decreases from right to left, while the inclination angle of the first inclined step surface 210 on the right first adjusting plate 200 gradually decreases from left to right.

[0024] like Figure 3 and Figure 4 As shown, two second adjusting plates 300 are also provided, extending in the left-right direction. The two second adjusting plates 300 are respectively positioned in front of the two first adjusting plates 200, as shown. Figure 2 and Figure 5As shown, the surfaces of the two second adjustment plates 300 facing the first adjustment plate 200 are provided with a plurality of second inclined step surfaces 310, and the plurality of second inclined step surfaces 310 and the plurality of first inclined step surfaces 210 slide and abut against each other in a one-to-one correspondence.

[0025] The bending blade 400 extends in the left and right direction and is located in front of the two second adjusting plates 300.

[0026] The connecting component of this utility model is connected between the cutter holder 100, the first adjusting plate 200, the second adjusting plate 300 and the bending cutter body 400, so as to lock the first adjusting plate 200, the second adjusting plate 300 and the bending cutter body 400 tightly against the cutter holder 100 in sequence. It can be understood that the cutter holder 100, the first adjusting plate 200, the second adjusting plate 300 and the bending cutter body 400 are arranged tightly against each other from back to front.

[0027] The compensation adjustment component in this embodiment is used to adjust the relative position of the second adjustment plate 300 and the first adjustment plate 200 in the left-right direction, so as to lift the middle part of the bending blade body 400.

[0028] In use, according to the actual bending compensation requirements, the relative positions of the second adjusting plate 300 and the first adjusting plate 200 in the left-right direction are adjusted by the compensation adjusting component, so as to adjust the relative positions of the first inclined step surface 210 and the second inclined step surface 310 in the left-right direction. Since the inclination angle between the multiple first inclined step surfaces 210 and the left-right direction gradually decreases from one end of the two first adjusting plates 200 to the other end, when the first inclined step surface 210 and the second inclined step surface 310 are misaligned in the left-right direction, the thickness of the first adjusting plate 200 and the second adjusting plate 300 as a whole in the front-back direction can be changed, thereby increasing the thickness of the two pairs of first adjusting plates 200 and the second adjusting plate 300 in the middle region of the bending cutter body 400, and the thickness gradually decreases from the middle region of the bending cutter body 400 to both ends. Then, the first adjusting plate 200, the second adjusting plate 300 and the bending cutter body 400 are sequentially and tightly locked to the cutter holder 100 to lift the middle part of the bending cutter body 400 and form an arched structure.

[0029] This invention achieves stepless adjustment of the overall thickness of the first adjusting plate 200 and the second adjusting plate 300 by adjusting the relative position of the first inclined step surface 210 and the second inclined step surface 310 in the left-right direction. It can steplessly lift the middle part of the bending cutter body 400 to form arched structures of different sizes to adapt to different bending requirements, ensure bending accuracy, facilitate adjustment, and improve the efficiency of bending processing.

[0030] In some other embodiments, one first adjusting plate 200 and one second adjusting plate 300 are respectively provided. The cutter holder 100, the first adjusting plate 200, the second adjusting plate 300, and the bending cutter body 400 are arranged in close proximity in sequence. The inclination angle between the multiple first inclined step surfaces 210 and the left and right directions gradually decreases from the middle area of ​​the bending cutter body 400 towards both ends. When adjusting the relative position between the first adjusting plate 200 and the second adjusting plate 300 in the left and right directions, the first inclined step surface 210 and the second inclined step surface 310 can be misaligned in the left and right directions, thereby changing the overall thickness of the first adjusting plate 200 and the second adjusting plate 300 in the front and back directions. This increases the overall thickness of the first adjusting plate 200 and the second adjusting plate 300 in the middle area of ​​the bending cutter body 400, and the thickness gradually decreases from the middle area of ​​the bending cutter body 400 towards both ends.

[0031] To facilitate adjustment, this embodiment includes two first adjustment plates 200 and two second adjustment plates 300, with each of the two second adjustment plates 300 being adjusted individually.

[0032] Furthermore, such as Figure 5 As shown, in this embodiment, the first adjusting plate 200 has a plurality of first mounting holes 220, the second adjusting plate 300 has a plurality of second mounting holes 320, the bending blade body 400 has a plurality of third mounting holes 410, and the blade holder 100 has a plurality of mounting screw holes 110. The mounting screw holes 110, the first mounting holes 220, the second mounting holes 320, and the third mounting holes 410 are arranged opposite to each other in the front-back direction. The connecting assembly includes a plurality of connecting bolts (not shown in the figure). The connecting bolts pass through the third mounting holes 410, the second mounting holes 320, and the first mounting holes 220 in sequence and are threadedly connected to the mounting screw holes 110 on the blade holder 100.

[0033] And, as Figure 5 As shown, the first mounting hole 220 is a circular hole, and the second mounting hole 320 is a strip-shaped hole extending in the left and right direction. The second mounting hole 320 is slidably set relative to the connecting bolt in the left and right direction. When adjusting the relative position between the first adjusting plate 200 and the second adjusting plate 300, it is only necessary to loosen the connecting bolt. Under the guidance of the strip-shaped second mounting hole 320, the second adjusting plate 300 can slide relative to the first adjusting plate 200 in the left and right direction, while the first adjusting plate 200, the bending blade body 400 and the blade holder 100 are relatively fixed in the left and right direction. After the adjustment is completed, the connecting bolt is tightened. The operation is simple.

[0034] At this time, the compensation adjustment component is connected to the two second adjustment plates 300 respectively to drive the two second adjustment plates 300 to move back and forth in the left and right directions.

[0035] In some other embodiments, the first mounting hole 220 is a strip-shaped hole, while the second mounting hole 320 is a circular hole. The compensation adjustment component is connected to the two first adjustment plates 200 respectively to drive the two first adjustment plates 200 to move back and forth in the left and right direction.

[0036] Furthermore, such as Figure 1 and Figure 4 As shown, the compensation adjustment assembly of this embodiment includes two adjusting bolts 500. The two adjusting bolts 500 are symmetrically threaded to both ends of the tool holder 100. The two adjusting bolts 500 are rotatably fixed to two second adjusting plates 300 respectively. In this embodiment, the second adjusting plates 300 are moved in the left and right direction by rotating the adjusting bolts 500. The adjusting bolts 500 have a self-locking function, making adjustment convenient and highly accurate.

[0037] When it is necessary to increase the height of the middle part of the bending cutter body 400, tighten the adjusting bolts 500 at both ends to control the two second adjusting plates 300 to move to the left and right sides respectively. At this time, the overall thickness of the first adjusting plate 200 and the second adjusting plate 300 in the middle area of ​​the bending cutter body 400 increases.

[0038] like Figure 1 and Figure 4 As shown, the front side of the tool holder 100 in this embodiment is provided with a limiting groove 120 extending in the left and right direction. Two first adjusting plates 200 and two second adjusting plates 300 are provided in the limiting groove 120, and two adjusting bolts 500 are respectively threaded to the left and right ends of the limiting groove 120.

[0039] like Figure 1 and Figure 4 As shown, in this embodiment, the cutter holder 100, the first adjusting plate 200, the second adjusting plate 300, the bending cutter body 400, and the cutter holder 100 are arranged in close proximity from back to front. One end of the bending cutter body 400 along the vertical direction is provided with a bending blade 420. The cutter holder 100 is provided with an abutting step, which abuts against the end of the bending cutter body 400 facing away from the bending blade 420 to improve the load-bearing capacity of the bending cutter body 400.

[0040] This utility model proposes a method for adjusting the micro-tension compensation of a bending cutter, applicable to the aforementioned micro-tension compensation adjustment mechanism for bending cutters, such as... Figure 6 As shown, the micro-tension compensation adjustment method for bending knives includes: Step S100: Control the loosening of the connection between the first adjusting plate 200, the second adjusting plate 300 and the bending blade body 400; Step S200: Control the relative position of the second adjustment plate 300 and the first adjustment plate 200 in the first direction to adjust the relative position of the first inclined step surface 210 and the second inclined step surface 310 in the first direction, so that the thickness of the two pairs of first adjustment plates 200 and second adjustment plates 300 as a whole in the middle region of the bending blade body 400 increases to a preset value. Step S300: Control the first adjusting plate 200, the second adjusting plate 300 and the bending blade 400 to be tightly locked to the blade holder 100 in sequence, so as to lift the middle part of the bending blade 400 and form an arched structure.

[0041] In steps S100 and S300, the connection between the first adjusting plate 200, the second adjusting plate 300 and the bending blade body 400 is loosened by loosening all the connecting bolts, so that the second adjusting plate 300 can move in the left and right direction relative to the first adjusting plate 200; after adjusting the position of the second adjusting plate 300, all the connecting bolts are tightened.

[0042] In step S200, by rotating the two adjusting bolts 500, the two second adjusting plates 300 are moved to the left and right ends respectively, thereby increasing the thickness of the two pairs of first adjusting plates 200 and second adjusting plates 300 in the middle region of the bending cutter body 400; by controlling the two second adjusting plates 300 to move closer to each other in the left and right direction, the thickness of the two pairs of first adjusting plates 200 and second adjusting plates 300 in the middle region of the bending cutter body 400 is reduced.

[0043] In addition, such as Figure 5 , Figure 7 and Figure 8 As shown, this utility model proposes a bending knife device, including the aforementioned bending knife micro-tension compensation adjustment mechanism, and also includes a first bending drive mechanism 600 and a second bending drive mechanism 700. The first bending drive mechanism 600 is used to drive the knife holder 100 to reciprocate in the front-back direction, and the second bending drive mechanism 700 is used to drive the knife holder 100 to reciprocate in the up-down direction, so as to drive the bending knife body 400 to move in the up-down and front-back directions to realize the bending action.

[0044] Specifically, the first bending drive mechanism 600 of this embodiment includes a fixed base 610, a movable base 620, and a front and rear drive structure 630. The movable base 620 is slidably mounted on the fixed base 610. The front and rear drive structure 630 is a motor screw structure. The front and rear drive structure 630 is used to drive the movable base 620 to move back and forth. The cutter holder 100 is slidably mounted on the movable base 620. The second bending drive mechanism 700 includes an up and down drive structure 710 mounted on the movable base 620. The up and down drive structure 710 adopts a motor screw structure. The up and down drive structure 710 drives the cutter holder 100 to move up and down.

[0045] In this embodiment, the tool holder 100 is provided with two horizontal beams 130 spaced apart vertically on the front side, and two bending tool bodies 400 are provided. The two bending tool bodies 400 are respectively located on the front side of the two horizontal beams 130. The two bending tool bodies 400 are spaced apart relative to each other in the vertical direction, and the two bending tool bodies 400 respectively realize the vertical bending of the workpiece.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A micro-tension compensation adjustment mechanism for a bending knife, characterized in that, include: Knife Holder(100); A first adjusting plate (200) is disposed on the knife holder (100) along a first direction. A plurality of first inclined step surfaces (210) are provided on one surface of the first adjusting plate (200) arranged along the first direction. The first inclined step surfaces (210) are inclined along the first direction. The second adjustment plate (300) extends along the first direction and is located on the same side as the first adjustment plate (200) and the first inclined step surface (210). The surface of the second adjustment plate (300) facing the first adjustment plate (200) is provided with a plurality of second inclined step surfaces (310) that correspond one-to-one with the plurality of first inclined step surfaces (210). A bending blade (400) extends along the first direction. The bending blade (400) is disposed on the side of the two second adjusting plates (300) facing away from the first adjusting plate (200). The inclination angle between the plurality of first inclined step surfaces (210) and the first direction gradually decreases from the middle region of the bending blade (400) towards both ends. A connecting component is connected between the cutter holder (100), the first adjusting plate (200), the second adjusting plate (300) and the bending cutter body (400) to sequentially and tightly lock the first adjusting plate (200), the second adjusting plate (300) and the bending cutter body (400) onto the cutter holder (100). The compensation adjustment assembly is used to adjust the relative position of the second adjustment plate (300) and the first adjustment plate (200) in the first direction to lift the middle part of the bending blade body (400).

2. The bending knife micro-tension compensation adjustment mechanism according to claim 1, characterized in that: Two first adjustment plates (200) are provided, and the two first adjustment plates (200) are arranged along the first direction. The inclination angle between the plurality of first inclined step surfaces (210) and the first direction gradually decreases from one end of the two first adjustment plates (200) to the other end. The plurality of first inclined step surfaces (210) on the two first adjustment plates (200) are symmetrically arranged in the first direction. Two second adjustment plates (300) are provided, and the two second adjustment plates (300) are respectively arranged on the same side of the two first adjustment plates (200) and the first inclined step surfaces (210) in the same direction.

3. The bending knife micro-tension compensation adjustment mechanism according to any one of claims 1 or 2, characterized in that: The connecting assembly includes multiple connecting bolts. The first adjusting plate (200) has multiple first mounting holes (220), the second adjusting plate (300) has multiple second mounting holes (320), and the bending blade body (400) has multiple third mounting holes (410). The connecting bolts pass through the third mounting holes (410), the second mounting holes (320) and the first mounting holes (220) in sequence and are threaded to the blade holder (100).

4. The bending knife micro-tension compensation adjustment mechanism according to claim 3, characterized in that: The first mounting hole (220) is a circular hole, and the second mounting hole (320) is a strip-shaped hole extending along the first direction. The second mounting hole (320) is slidably disposed relative to the connecting bolt along the first direction.

5. The bending knife micro-tension compensation adjustment mechanism according to claim 2, characterized in that: The compensation adjustment component is connected to the two second adjustment plates (300) respectively to drive the two second adjustment plates (300) to reciprocate along the first direction.

6. The bending knife micro-tension compensation adjustment mechanism according to claim 5, characterized in that: The compensation adjustment assembly includes two adjusting bolts (500), which are symmetrically threaded to both ends of the tool holder (100). The two adjusting bolts (500) are rotatably fixedly connected to the two second adjusting plates (300) respectively.

7. The bending knife micro-tension compensation adjustment mechanism according to claim 2, characterized in that: The front side of the tool holder (100) is provided with a limiting groove (120) extending in a first direction, and two first adjusting plates (200) and two second adjusting plates (300) are disposed in the limiting groove (120).

8. The bending knife micro-tension compensation adjustment mechanism according to claim 1, characterized in that: The blade holder (100), the first adjusting plate (200), the second adjusting plate (300), and the bending blade body (400) are arranged sequentially along the second direction. The bending blade body (400) has a bending blade (420) at one end along the third direction. The blade holder (100) has an abutting step, which abuts against the end of the bending blade body (400) facing away from the bending blade (420). The first direction, the second direction, and the third direction are arranged orthogonally to each other.

9. A bending knife device, characterized in that, The bending cutter micro-tension compensation adjustment mechanism as described in any one of claims 1 to 8 further includes a first bending drive mechanism (600) and a second bending drive mechanism (700), wherein the first bending drive mechanism (600) is used to drive the cutter holder (100) to reciprocate along a second direction, and the second bending drive mechanism (700) is used to drive the cutter holder (100) to reciprocate along a third direction, wherein the first direction, the second direction and the third direction are orthogonally arranged to each other.

10. The bending knife device according to claim 9, characterized in that: Two bending cutter bodies (400) are provided, and the two bending cutter bodies (400) are arranged at a relative interval along the third direction.

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