Bending machine tool holder auxiliary turning device

Abstract

The utility model aims at providing a bending machine tool apron auxiliary steering device, including seat and support component, support component includes side column, axle column, first screw block, second screw block, linkage, a plurality of sliding blocks and a plurality of elastic pieces, side column is screwed on the tool apron, axle column is worn on the base, each sliding block is slidably arranged on the base, each elastic piece respectively pushes each sliding block and encloses axle column, first screw block and second screw block are slidably arranged on each sliding block, to make each sliding block drive first screw block and second screw block form a annular structure, and annular structure is screwed with axle column, axle column is used for with side column and is contacted, linkage is used for driving each sliding block relative to base synchronous sliding, when any one in each sliding block is slid away from axle column by external force, to make first screw block and second screw block synchronous away from axle column, and then make axle column quickly from base stretches out to with side column and is contacted. Like this, to reduce the time of axle column slow extension, greatly shorten the operation time of tool apron conversion groove.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet metal bending, and in particular to an auxiliary steering device for a bending machine tool holder. Background Technology

[0002] The mainstream bending machine cutter holders currently on the market generally adopt a rectangular column structure design. This structural choice is directly related to the core requirements of bending operations. In sheet metal bending, to complete the bending of the entire sheet in a single bending action and avoid segmented bending marks due to insufficient cutter holder length, the length of the cutter holder usually needs to be greater than the length of the sheet to be processed. The rectangular column structure can meet the length requirement while taking into account structural stability and processing convenience, thus becoming the standard design in the industry. To adapt to the precise bending needs of sheets of different thicknesses, grooves of varying depths are machined on the four sides of the rectangular column cutter holder. The core principle is that the greater the sheet thickness, the higher the stress and deformation required during bending, and the higher the requirements for the support strength and fit of the cutter holder grooves. Deeper grooves provide a larger contact area and limiting space for thicker sheets, effectively dispersing the bending force and ensuring precise and controllable bending angles. The cutter holders are all made of solid metal materials, mainly including high-strength alloy steel and cast iron. This is because during bending operations, the cutter holder needs to continuously withstand bending pressure of hundreds or even thousands of tons, while also resisting the lateral impact force generated when the sheet metal comes into contact with the groove. However, the solid metal material also directly leads to a significant increase in the weight of the cutter holder. For example, a common 4-meter-long bending machine cutter holder typically weighs 500-800 kilograms, and some large cutter holders even exceed 1 ton, far exceeding the range of manual handling and operation. In actual production, when it is necessary to change the cutter holder groove to adapt to sheet metal of different thicknesses, the existing auxiliary tools in the industry are mainly jack-type devices. During operation, a jack needs to be placed at each end of the cutter holder, and the cutter holder is lifted by the support column of the jack, so that the cutter holder is removed from the bending machine's worktable. Then, the cutter holder is manually or with the help of simple tools to rotate, thereby changing the groove.

[0003] However, while existing auxiliary steering devices solve the problem of the tool holder being unable to be manually rotated, they still have the following shortcomings in operation: During each groove change process, after the jack is positioned, the jack's support column must be slowly extended from the cylinder body manually or electrically until the top of the support column fully contacts the tool holder and forms a stable support. When processing various sheet metal thicknesses daily, the tool holder needs to frequently change grooves. This extension process undoubtedly increases the operation time for changing grooves, leading to a decrease in the overall production line capacity. Therefore, this application proposes an auxiliary steering device for the bending machine tool holder. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bending machine tool holder auxiliary steering device that allows the support column to quickly extend from the cylinder body to improve work efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A bending machine cutter holder auxiliary steering device for supporting the cutter holder, comprising:

[0007] Base; and

[0008] A support assembly includes a side post, a shaft post, a first screw block, a second screw block, a linkage component, several sliders, and several elastic components. The side post is coaxially screwed onto the tool holder, and the shaft post is coaxially inserted into the base. Each slider is slidably disposed on the base, and each slider is located on both sides of the shaft post. Each elastic component pushes each slider to surround the shaft post. The first screw block and the second screw block are slidably disposed on each slider in an arc shape, so that each slider drives the first screw block and the second screw block to form a separable annular structure. The annular structure is screwed onto the shaft post, and the shaft post is used to abut against the side post.

[0009] The linkage is rotatably mounted on the base on an axial axis. Both ends of the linkage are rotatably connected to each of the sliders. The linkage is used to drive each slider to slide synchronously relative to the base. When any one of the sliders slides away from the shaft post under external force, the first screw block and the second screw block move away from the shaft post synchronously to disengage from the screw connection, thereby causing the shaft post to quickly extend from the base to abut against the side post.

[0010] Optionally, the first screw block is provided with a cylinder, and the second screw block is provided with a circular groove, wherein the cylinder is inserted into the circular groove in a suitable manner.

[0011] Optionally, the first screw block is provided with an arc groove, and the end face of the slider is provided with an arc rail, which is slidably engaged with the arc groove.

[0012] Optionally, the first screw block has an annular groove, and the inner sidewall of the slider has an annular rail, which is slidably engaged with the annular groove.

[0013] Optionally, the slider is further provided with a T-shaped rail, and the base is provided with a T-shaped groove, the T-shaped rail and the T-shaped groove being slidably engaged.

[0014] Optionally, the base has a through hole, and the T-shaped rail is provided with a traction column, which passes through the through hole and is rotatably connected to the linkage.

[0015] Optionally, the linkage includes a rotating ring and several connecting rods. The rotating ring is rotatably mounted on the base. One end of each of the two connecting rods is rotatably connected to the opposite ends of the rotating ring, and the other end of each of the two connecting rods is rotatably connected to each of the traction columns.

[0016] Optionally, the support assembly further includes a limiting rod, a slot is provided on the shaft, the limiting rod is screwed onto the base, and one end of the limiting rod is slidably engaged with the slot.

[0017] Optionally, the shaft column is provided with a V-shaped portion, which is used to abut against the side column.

[0018] Optionally, the inner bottom wall of the V-shaped portion has an arc-shaped structure.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] This utility model discloses an auxiliary steering device for a bending machine cutter holder. An elastic element pushes a slider, causing a first and second screw block to form a ring structure that is screwed onto a shaft post. A limiting rod and a slot cooperate to restrict the rotation of the shaft post. When the ring structure rotates, the shaft post extends slowly and smoothly along the central hole. When the worker pulls either slider, the linkage simultaneously moves both sliders away from the shaft post, causing the first and second screw blocks to disengage from the shaft post. This allows the shaft post to quickly extend from the base and abut against the side post, reducing the time required for slow extension and significantly shortening the operation time of the cutter holder conversion groove. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the shaft column and the side column abutting in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the first screw block and the second screw block being far apart from each other in one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of an auxiliary steering device for a bending machine cutter holder according to one embodiment of the present invention;

[0025] Figure 4 This is a structural schematic diagram of the installation position of the linkage component according to one embodiment of the present invention;

[0026] Figure 5 This is an exploded structural diagram of an auxiliary steering device for a bending machine cutter holder according to one embodiment of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the auxiliary steering device for a bending machine cutter holder according to one embodiment of the present invention;

[0028] Figure 7 This is a top view schematic diagram of the auxiliary steering device for a bending machine cutter holder according to one embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the first screw block according to one embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the base according to one embodiment of the present invention;

[0031] Figure 10 for Figure 9 A magnified schematic diagram of the structure of part A in the diagram;

[0032] Figure 11 This is a schematic diagram of the structure of the first slider according to one embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Auxiliary steering device for bending machine cutter holder; 10. Cutter holder; 20. Base; 200. Through hole; 201. T-slot; 21. Side column; 22. Shaft column; 220. Slot; 221. V-shaped part; 23. First screw block; 230. Cylindrical; 231. Arc groove; 232. Ring groove; 24. Second screw block; 240. Circular groove; 25. Linkage component; 250. Rotary ring; 251. Connecting rod; 26. Slider; 260. First slider; 261. Second slider; 262. T-rail; 2620. Traction column; 263. Ring rail; 264. Arc rail; 27. Elastic component; 28. Limiting rod. Detailed Implementation

[0035] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0036] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0039] like Figures 1 to 11 As shown, in one embodiment, a bending machine tool holder auxiliary steering device 1 is used to support the tool holder 10. It includes a base 20 and a support assembly. The support assembly includes side columns 21, shaft columns 22, first screw blocks 23, second screw blocks 24, linkage members 25, a plurality of sliders 26, and a plurality of elastic members 27. The side columns 21 are coaxially screwed onto the tool holder 10. The shaft columns 22 are coaxially inserted into the base 20. Each slider 26... All are slidably disposed on the base 20, and each slider 26 is located on both sides of the shaft post 22. Each elastic element 27 pushes each slider 26 to surround the shaft post 22. The first screw block 23 and the second screw block 24 are respectively slidably disposed on each slider 26 in an arc shape, so that each slider 26 drives the first screw block 23 and the second screw block 24 to form a separable ring structure. The ring structure is screwed to the shaft post 22, and the shaft post 22 is used to abut against the side post 21.

[0040] The linkage 25 is rotatably mounted on the base 20 on the same axis. The two ends of the linkage 25 are rotatably connected to each slider 26. The linkage 25 is used to drive each slider 26 to slide synchronously relative to the base 20. When any one of the sliders 26 slides away from the shaft post 22 under external force, the first screw block 23 and the second screw block 24 move away from the shaft post 22 synchronously to disengage from the screw connection, thereby allowing the shaft post 22 to quickly extend from the base 20 to abut against the side post 21.

[0041] It should be noted that one end of the side post 21 is threaded, and the side post 21 is coaxially threaded to the tool holder 10, so that the side post 21 protrudes relative to the end face of the tool holder 10; furthermore, the base 20 has a central hole, and the diameter of the central hole is adapted to the diameter of the shaft post 22; the shaft post 22 is coaxially inserted into the central hole, so that the shaft post 22 can extend / retract relative to the base 20; furthermore, two sliders 26 are provided, both sliders 26 are slidably disposed on the base 20, and the two sliders 26 are respectively located on the shaft post 22. On opposite sides; the elastic element 27 is a spring structure, and there are two elastic elements 27. The two elastic elements 27 are respectively sleeved on the two sliders 26, and the two elastic elements 27 are respectively located on the side of the two sliders 26 away from the shaft post 22, so that one end of the two elastic elements 27 abuts against the opposite sides of the base 20, and the other end of the two elastic elements 27 abuts against the two sliders 26, thereby enabling the two elastic elements 27 to push the two sliders 26 to slide closer to the shaft post 22, so that the two sliders 26 together surround the shaft post 22.

[0042] It should be noted that, for ease of description, the two sliders 26 are defined as the first slider 260 and the second slider 261, respectively; the first screw block 23 and the second screw block 24 are both semi-circular ring structures. One end of the first screw block 23 is slidably engaged with the first slider 260 along the circumference, so that the first screw block 23 is slidably disposed on the first slider 260 in an arc shape. Specifically, when the first screw block 23 is regarded as a complete ring shape, the first screw block 23 rotates relative to the first slider 260, but the first slider 260 is slidably engaged with half of the complete ring-shaped first screw block 23. Similarly, the second screw block 24 is also slidably disposed on the second slider 261 in an arc shape in the same manner. Furthermore, when the two elastic elements 27 respectively drive the two sliders 26 to coaxially surround the shaft post 22, and at the same time drive the first screw block 23 and the second screw block 24 to jointly form a separable ring structure; since the two sliders 26 are located on opposite sides of the shaft post 22 respectively, and the first screw block 23 and the second screw block 24 are both compatible semi-circular ring structures, the axis of the ring structure can coincide with the axis of the shaft post 22, thereby enabling the ring structure to be screwed to the shaft post 22.

[0043] It should be noted that since the first screw block 23 and the second screw block 24 can rotate relative to the first slider 260 and the second slider 261 respectively, when the first slider 260 and the second slider 261 are coaxially aligned around the shaft post 22, the first screw block 23 and the second screw block 24 can also rotate synchronously relative to the shaft post 22. For example, similar to the shape of a yin-yang symbol, both semicircles rotate along an axis. Thus, since the annular structure is screwed to the shaft post 22, when the annular structure rotates, the shaft post 22 can extend relative to the base 20 to push against the side post 21, thereby lifting the tool holder 10; or the shaft post 22 can retract relative to the base 20 to move away from the side post 21, thereby moving away from the tool holder 10.

[0044] It should be noted that the linkage 25 is coaxially rotatably mounted on the base 20, and both ends of the linkage 25 are rotatably connected to two sliders 26 respectively. When the worker pulls either slider 26 away from the shaft 22, it can simultaneously drive the other slider 26 away from the shaft 22, and simultaneously cause the two sliders 26 to squeeze the two elastic elements 27 respectively. This allows the worker to separate the annular structure into the first screw block 23 and the second screw block 24 without simultaneously operating both sliders 26 away from the shaft 22, and simultaneously disengage them from the screw connection with the shaft 22. Furthermore, when the first screw block 23 and the second screw block 24 disengage from the shaft post 22, the worker can pull the shaft post 22 to quickly engage with the side post 21. After the worker completes this action, the pulled slider 26 is released. Under the action of the two elastic elements 27, both sliders 26 simultaneously approach the shaft post 22, causing the first screw block 23 and the second screw block 24 to re-form a ring structure and re-engage with the shaft post 22, thus preventing the shaft post 22 from sliding relative to the base 20. This reduces the operation time of the tool holder 10 changing groove, thereby increasing the overall production capacity of the production line and improving the convenience and efficiency of worker operation.

[0045] like Figure 2 , Figures 4 to 6 , Figure 8 As shown, in one embodiment, a cylinder 230 is provided on the first screw block 23, and a circular groove 240 is provided on the second screw block 24, with the cylinder 230 and the circular groove 240 being inserted into each other in a suitable manner.

[0046] It should be noted that both the first screw block 23 and the second screw block 24 are semi-annular structures, and both ends are on the same plane. For ease of description, the two ends of the first screw block 23 are defined as the first left end and the first right end, respectively, and the two ends of the second screw block 24 are defined as the second left end and the second right end, respectively. The first left end has two cylinders 230, with a circular groove 240 between them. The first right end has one cylinder 230, with a circular groove 240 on each side of the cylinder 230. Similarly, the second left end has two cylinders 230, with a circular groove 240 between them. 40. A cylinder 230 is provided on the second right end, and a circular groove 240 is opened on both sides of the cylinder 230. In this way, when the first screw block 23 and the second screw block 24 are engaged to form a ring structure, the two cylinders 230 and one circular groove 240 on the first left end are adapted to be inserted into the cylinder 230 and two circular grooves 240 on the second right end. At the same time, the cylinder 230 and two circular grooves 240 on the first right end are adapted to be inserted into the cylinder 230 and one circular groove 240 on the second left end. In this way, the first screw block 23 and the second screw block 24 can be engaged to form a ring structure.

[0047] It should be noted that the end faces of both ends of the first screw block 23 and the second screw block 24 are on the same plane, and each cylinder 230 and each groove 240 are vertically arranged / opened on the end face. This ensures that when the first screw block 23 and the second screw block 24 interlock to form a ring structure, they cannot separate along the circumference of the ring structure when rotating relative to the shaft 22, thus maintaining the rotation of the ring structure. Specifically, because the ring structure is formed by two interlocking semi-circular ring structures, the first screw block 23 and the second screw block 24 are always located on opposite sides of the shaft 22. For example, when the outer wall of the ring structure is subjected to an external force and rotates clockwise... The first screw block 23 located on the left side of the shaft 22 will be subjected to an upward pushing force, while the second screw block 24 located on the right side of the shaft 22 will be subjected to a downward pushing force. As a result, the end faces of the first screw block 23 and the second screw block 24 that are engaged with each other will be misaligned, which will cause the first screw block 23 and the second screw block 24 to separate or detach. In this way, each cylinder 230 and each groove 240 are staggered and perpendicularly arranged on the end faces of the first screw block 23 and the second screw block 24, so that the two end faces of the first screw block 23 and the second screw block 24 that are engaged with each other cannot be misaligned, and thus the ring structure cannot be separated during rotation.

[0048] It should be noted that when the end faces of the first screw block 23 and the second screw block 24 are perpendicular to the sliding direction of the slider 26, the axial directions of each cylinder 230 and each circular groove 240 are parallel to the sliding direction of the slider 26. In this way, each slider 26 drives each cylinder 230 to be pulled out from each circular groove 240, thereby causing the annular structure to separate into the first screw block 23 and the second screw block 24.

[0049] like Figures 5 to 6 , Figure 8 As shown, in one embodiment, the first screw block 23 is provided with an arc groove 231, and the end face of the slider 26 is provided with an arc rail 264, which is slidably engaged with the arc groove 231.

[0050] It should be noted that an arc groove 231 is formed on the outer wall of the first screw block 23, with the opening of the arc groove 231 facing one end of the first screw block 23. An arc rail 264 is provided on one end face of the first slider 260, and the arc rail 264 slides and engages with the arc groove 231 in a suitable manner, so that the first screw block 23 can have an arc in the direction of sliding relative to the first slider 260. The structure of the second screw block 24 is the same as that of the first screw block 23, and the structure of the second slider 261 is the same as that of the first slider 260. The arc groove 231 on the second screw block 24 slides and engages with the arc rail 264 on the second slider 261. Thus, when the two sliders 26 drive the two screw blocks to approach each other to form a ring structure, the two opposite ends of the ring structure are rotatably connected to the two sliders 26, thereby allowing the ring structure to rotate relative to the shaft 22.

[0051] like Figures 2 to 3 , Figures 5 to 6 , Figure 8 As shown, in one embodiment, the first screw block 23 is provided with an annular groove 232, and the inner sidewall of the slider 26 is provided with an annular rail 263, which is slidably engaged with the annular groove 232.

[0052] It should be noted that the annular groove 232 is formed on the outer wall of the first screw block 23, and the annular rail 263 is set on the inner wall of the first slider 260. The annular rail 263 is slidably engaged with the annular groove 232. In this way, when the first screw block 23 slides along the circumference of the first slider 260, the first screw block 23 cannot disengage upward along the axial direction of the first slider 260. Similarly, the annular groove 232 on the second screw block 24 is also slidably engaged with the annular rail 263 on the second slider 261, so that when the annular structure rotates relative to the shaft 22, it cannot disengage upward relative to the two sliders 26.

[0053] like Figure 5 , Figure 11 As shown, in one embodiment, the slider 26 is also provided with a T-shaped rail 262, and the base 20 is provided with a T-shaped groove 201, and the T-shaped rail 262 and the T-shaped groove 201 are slidably engaged.

[0054] It should be noted that multiple T-slots 201 are provided, and each T-slot 201 is located on both sides of the central hole, and each T-slot 201 is parallel to each other; so that the T-rails 262 on the two sliders 26 are slidably disposed in the T-slots 201 on both sides of the central hole, so that the two sliders 26 can slide closer to or away from the central hole.

[0055] like Figures 3 to 4 , Figure 7 , Figure 9 As shown, in one embodiment, a through hole 200 is provided on the base 20, and a traction column 2620 is provided on the T-shaped rail 262. The traction column 2620 passes through the through hole 200 and is rotatably connected to the linkage 25.

[0056] It should be noted that two T-shaped slots 201 are respectively opened on both sides of the central hole; two through holes 200 are provided. For example, one through hole 200 communicates with the inner bottom wall of the lower left T-shaped slot 201 of the central hole, and the other through hole 200 communicates with the inner bottom wall of the upper right T-shaped slot 201 of the central hole. In this way, the two through holes 200 are opened diagonally with the central hole as the center. Further, a platform part is provided on the base 20, and the central hole passes through the base 20 and the platform part; and each T-shaped slot 201 is opened on the upper surface of the platform part; further, the linkage 25 is rotatably mounted on the base 20 and located below the platform part; two traction columns 2620 are provided. One end of each traction column 2620 is respectively set on a T-shaped rail 262 on the slider 26, and the other end of each traction column 2620 extends out from the lower surface of the platform part through the two through holes 200, and is rotatably connected to the two opposite ends of the linkage 25. In this way, when one slider 26 slides closer to or away from the center hole relative to the platform, the other slider 26 can be simultaneously driven to slide closer to or away from the center hole via the linkage 25.

[0057] like Figures 1 to 5 As shown, in one embodiment, the linkage 25 includes a rotating ring 250 and several connecting rods 251. The rotating ring 250 is rotatably mounted on the base 20. One end of each of the two connecting rods 251 is rotatably connected to the two opposite ends of the rotating ring 250, and the other end of each of the two connecting rods 251 is rotatably connected to each traction column 2620.

[0058] It should be noted that the rotating ring 250 is rotatably mounted on the base 20 and is located below the platform; the two connecting rods 251 are curved, and one end of the two connecting rods 251 is rotatably connected to the two opposite ends of the rotating ring 250, and the other end of the two connecting rods 251 is rotatably connected to the two traction columns 2620; thus, the two sliders 26 can slide synchronously to move closer to or away from the central hole.

[0059] like Figures 1 to 7 As shown, in one embodiment, the support assembly further includes a limiting rod 28, a slot 220 is provided on the shaft 22, the limiting rod 28 is screwed onto the base 20, and one end of the limiting rod 28 is slidably engaged with the slot 220.

[0060] It should be noted that the shaft 22 includes an upper part and a lower part. The outer side wall of the upper part is provided with threads, and the inner side walls of the first screw block 23 and the second screw block 24 are provided with threads. When the first screw block 23 and the second screw block 24 are engaged with each other to form a ring structure, the threads and the screw teeth can be screwed together. Furthermore, a slot 220 is provided on the lower outer wall. The slot 220 is opened along the axial direction and has an oblong groove structure. The limiting rod 28 is screwed onto the base 20 perpendicular to the central hole, so that the limiting rod 28 can rotate vertically into the slot 220. When the limiting rod 28 is inserted into the slot 220, the shaft 22 cannot rotate relative to the base 20. Since the slot 220 has an oblong hole structure and is opened along the axial direction of the shaft 22, the limiting rod 28 can slide in the slot 220 when the annular structure rotates to drive the shaft 22 to extend upward or retract downward. At the same time, when the worker quickly abuts the shaft 22 against the side column 21, the shaft 22 can be prevented from detaching from the central hole.

[0061] like Figures 2 to 3 , Figures 5 to 6 As shown, in one embodiment, a V-shaped portion 221 is provided on the shaft post 22, and the V-shaped portion 221 is used to abut against the side post 21.

[0062] It should be noted that the V-shaped part 221 is provided on the end face of the shaft post 22 away from the slot 220. When the V-shaped part 221 abuts against the side post 21, the two sides of the V-shaped groove can engage the side post 21 to prevent the side post 21 from slipping off the shaft post 22.

[0063] like Figures 2 to 3 , Figures 5 to 6 As shown, in one embodiment, the inner bottom wall of the V-shaped portion 221 has an arc-shaped structure.

[0064] It should be noted that both ends of the tool holder 10 need to be supported to suspend it in order for it to rotate. In actual operation, there will inevitably be a height difference between the two ends of the tool holder 10 during the support process, specifically, for example, the left end being higher than the right. In this case, the axis of the side post 21 and the axis of the shaft post 22 cannot be perpendicular to each other. If the end of the shaft post 22 that abuts against the side post 21 is a plane, then an angle will inevitably form between the contact points of the shaft post 22 and the side post 21, and the contact position will be close to the edge of the end face of the shaft post 22. This will cause the force direction of the shaft post 22 to shift, resulting in the upper part of the shaft post 22 exerting a pushing force on the right side of the central hole, and the lower part of the shaft post 22 exerting a pushing force on the left side of the central hole. Under such a shift, the annular structure will have difficulty rotating relative to the shaft post 22, or even become unable to rotate, thus affecting the upward extension of the shaft post 22 to push against the side post 21. Thus, the inner bottom wall of the V-groove has an arc-shaped structure. When there is a height difference between the two ends of the tool holder 10, the side posts 21 at both ends of the tool holder 10 can abut against the inner bottom wall of the V-groove in a tangential manner, so as to reduce the offset of the shaft post 22 and increase the stability of the shaft post 22 support.

[0065] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bending machine tool holder auxiliary steering device for supporting the tool holder, characterized in that, include: Base; and A support assembly includes a side post, a shaft post, a first screw block, a second screw block, a linkage component, several sliders, and several elastic components. The side post is coaxially screwed onto the tool holder, and the shaft post is coaxially inserted into the base. Each slider is slidably disposed on the base, and each slider is located on both sides of the shaft post. Each elastic component pushes each slider to surround the shaft post. The first screw block and the second screw block are slidably disposed on each slider in an arc shape, so that each slider drives the first screw block and the second screw block to form a separable annular structure. The annular structure is screwed onto the shaft post, and the shaft post is used to abut against the side post. The linkage is rotatably mounted on the base on an axial axis. Both ends of the linkage are rotatably connected to each of the sliders. The linkage is used to drive each slider to slide synchronously relative to the base. When any one of the sliders slides away from the shaft post under external force, the first screw block and the second screw block move away from the shaft post synchronously to disengage from the screw connection, thereby causing the shaft post to quickly extend from the base to abut against the side post.

2. The bending machine tool holder auxiliary steering device according to claim 1, characterized in that, The first screw block has a cylinder, and the second screw block has a circular groove, with the cylinder and the circular groove being inserted into each other in a suitable manner.

3. The bending machine tool holder auxiliary steering device according to claim 2, characterized in that, The first screw block has an arc groove, and the end face of the slider has an arc rail, which is slidably engaged with the arc groove.

4. The bending machine tool holder auxiliary steering device according to claim 3, characterized in that, The first screw block has an annular groove, and the inner sidewall of the slider has an annular rail, which is slidably engaged with the annular groove.

5. The bending machine tool holder auxiliary steering device according to claim 4, characterized in that, The slider is also provided with a T-shaped rail, and the base is provided with a T-shaped groove, and the T-shaped rail is slidably engaged with the T-shaped groove.

6. The bending machine tool holder auxiliary steering device according to claim 5, characterized in that, The base has a through hole, and the T-shaped rail is provided with a traction column. The traction column passes through the through hole and is rotatably connected to the linkage.

7. The bending machine tool holder auxiliary steering device according to claim 6, characterized in that, The linkage includes a rotating ring and several connecting rods. The rotating ring is rotatably mounted on the base. One end of each of the two connecting rods is rotatably connected to the two opposite ends of the rotating ring, and the other end of each of the two connecting rods is rotatably connected to each of the traction columns.

8. The bending machine tool holder auxiliary steering device according to claim 1, characterized in that, The support assembly also includes a limiting rod, and a slot is provided on the shaft. The limiting rod is screwed onto the base, and one end of the limiting rod is slidably engaged with the slot.

9. The bending machine tool holder auxiliary steering device according to claim 8, characterized in that, The shaft column has a V-shaped portion, which is used to abut against the side column.

10. The bending machine tool holder auxiliary steering device according to claim 9, characterized in that, The inner bottom wall of the V-shaped part has an arc-shaped structure.

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