A bending device for producing CNC machine tool fixtures

Abstract

The present invention provides a bending device for the production of CNC machine tool fixtures, which belongs to the technical field of fixture production and processing. It comprises a bending machine body, a lower mold is installed in the middle of the bending machine body, and a V-shaped groove body is installed on the top of the lower mold; an auxiliary adjustment component, the auxiliary adjustment component is used to adjust the opening angle of the middle part of the V-shaped groove body, and the auxiliary adjustment component is connected to the wedge body. The present invention changes the angle of the V-shaped opening of the V-shaped groove body through the auxiliary adjustment component, and there is no need to remove and replace the V-shaped groove body as a whole. Moreover, the V-shaped groove body is made of metal as a whole, which has high strength, large weight, and is inconvenient to disassemble and assemble. By adjusting the position between the wedges, the angle of the V-shaped groove body at the top of the V-shaped groove body is changed. This state can adapt to the production of small-angle fixtures, so that the cooperation effect between the upper and lower molds is better, reducing the tedious disassembly and assembly steps of the staff, reducing the errors caused by small angles in the production of fixtures, and ensuring the subsequent processing of the fixtures.

Description

Technical Field

[0001] The present invention relates to the technical field of fixture production and processing, and in particular to a bending device for producing fixtures for numerically controlled machine tools. Background Art

[0002] A bending device is a special equipment used to precisely bend metal sheets or profiles. It is mainly used to manufacture bending components required for CNC machine tool fixtures (such as clamping blocks, positioning blocks, support structures, etc.). Its core function is to bend the material to a preset angle and shape by applying controllable force or displacement to meet the geometric accuracy and functional requirements of the fixture.

[0003] The bending of the fixture to a preset angle mainly relies on the extrusion between the upper and lower dies of the bending device. The existing bending device is divided into upper die movement and lower die movement, and the upper die of the existing bending machine mostly has a quick-release function, which can improve the efficiency of die replacement. In addition, the bending machine is used in conjunction with intelligent CNC technology, which greatly improves the quality and standardization of the workpiece.

[0004] However, on small-scale production lines, the production of fixtures with precise angles also exists. However, the cost of intelligent bending machines is relatively high. In order to reduce costs, the lower mold of the bending machine often does not use the bending capability equipped with a hydraulic or pneumatic adaptive bottom mold. In this work, for fixtures with different angles, not only the pressure value of the upper mold must be changed, but also the opening angle of the lower mold must be changed, so that the entire lower mold is replaced with a lower mold with a preset angle. Lower molds with a small degree difference (±0.5°~1°) are often incomplete, and most of them are lower molds with conventional degrees. In this state, the staff can often only rely on the pressure of the upper mold to determine the final bending angle of the fixture, which makes there a certain error in the bending of the fixture during work, affecting the subsequent processing of the fixture. Therefore, the present application provides a bending device for the production of CNC machine tool fixtures to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a bending device for the production of CNC machine tool fixtures to solve the problem that the existing fixtures for different bending angles not only need to change the pressure value of the upper mold, but also change the opening angle of the lower mold, so that the entire lower mold is replaced with a lower mold with a preset angle. In this state, the staff can often only rely on the pressure of the upper mold to determine the final bending angle of the fixture, which has a certain error and affects the subsequent processing of the fixture.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A bending device for producing CNC machine tool fixtures includes a bending machine main body, a lower mold fixedly connected to the middle of the bending machine main body, a V-shaped groove body installed on the top of the lower mold, a wedge body clamped on the inner wall of the V-shaped groove body, a support plate installed at the bottom of the inner wall of the V-shaped groove body, and a force block slidably connected to the top of the lower mold; an auxiliary adjustment component, the auxiliary adjustment component is used to adjust the opening angle of the middle part of the V-shaped groove body, and the auxiliary adjustment component is connected to the wedge body.

[0008] Optionally, the auxiliary adjustment assembly includes a side force plate attached to the outer wall of the wedge, the top of the wedge is attached to a force column, the top of the force column is fixedly connected to a V-shaped support block, and the top of the V-shaped support block is fixedly connected to an adapter pad.

[0009] Optionally, hollow side panels are attached to both sides of the outer wall of the wedge, a placement groove is opened on the outer wall of the hollow side panel, a placement plate is clamped on the inner wall of the hollow side panel, and a connecting plate is fixedly connected to the inner wall of the placement groove.

[0010] Optionally, a weakened portion is provided on the inner wall of the V-shaped groove body, screw holes are provided on both sides of the outer wall of the V-shaped groove body, and a snap-fit ​​groove is provided on the bottom of the outer wall of the V-shaped groove body.

[0011] Optionally, a side rectangular plate is clamped on the outer wall of the support plate, spacers are fixedly connected to both sides of the inner wall of the side rectangular plate, and a plurality of load-bearing columns are installed in the middle position of the top of the side rectangular plate.

[0012] Optionally, both ends of the force-bearing block are clamped with clamping columns, one side of the clamping column is fixedly connected to the clamping block, the middle of the clamping column is fixedly connected to the rotating leaf, and the other side of the clamping column is provided with a force-bearing groove.

[0013] Optionally, the size of the V-shaped support block is consistent with the size of the middle position of the V-shaped groove body, the size of the adapter pad is consistent with the size of the top position of the V-shaped support block, and the force columns are symmetrically distributed at the bottom of the V-shaped support block.

[0014] Optionally, the placement slots are linearly arrayed on the outer wall of the hollow side plate, the size of the placement plate is adapted to the size of the inner wall of the hollow side plate, and the length of the connecting plate is adapted to the length of the placement slots.

[0015] Optionally, the weakened portions are symmetrically distributed on the inner wall of the V-shaped groove body, and the screw holes are symmetrically opened on both sides of the V-shaped groove body, and there are several of them.

[0016] Optionally, the middle part of the side rectangular plate is hollowed out, the size of the support plate is adapted to the size of the hollowed-out middle part of the side rectangular plate, the bottom of the spacer is attached to the top of the support plate, the outer wall of the force-bearing column is slidably connected to the middle position of the top of the side rectangular plate, and the bottom of the force-bearing column is attached to the top of the spacer.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, the angle of the top of the inner wall of the V-shaped trough is changed through the auxiliary adjustment component, so that the V-shaped opening at the top of the V-shaped trough is larger, and there is no need to remove and replace the entire V-shaped trough. Moreover, the V-shaped trough is made of metal as a whole, which has high strength, large weight, and is inconvenient to disassemble and assemble. By adjusting the position between the wedges and changing the angle of the V-shaped trough at the top of the V-shaped trough, this state can be well adapted to the production of small-angle fixtures, so that the cooperation effect between the upper and lower molds is better, reducing the tedious disassembly and assembly steps of the staff, reducing the errors caused by small angles in the production of fixtures, and ensuring the subsequent processing of the fixture.

[0019] By setting up hollow side plates, force-applying columns and force-bearing columns, when the wedge slides into the inner wall of the V-shaped groove, the force states of the hollow side plates, force-applying columns and force-bearing columns are all synchronized, and the synchronization of the above three can well clamp and stabilize the wedge. On the one hand, it ensures that the upper die of the bending machine body is fully stressed when in contact with the clamp, thereby improving the accuracy of bending. On the other hand, it improves the efficiency and speed of replacing the lower die, reduces the tedious steps of the staff, and improves the overall flexibility of the device.

[0020] By setting the clamping column, clamping block, and rotating leaf, after the fine-tuning angle between the wedge and the V-shaped groove body is determined, the force-bearing block is placed in the correct shape and clamped and slid into the two sides of the bottom of the V-shaped groove body. After fixing it, the clamping column is horizontally clamped into one end of the force-bearing block, and the horizontal state of the clamping column is that the clamping block is placed horizontally, so that the overall shape of the clamping block is adapted to the shape of the notch at the end of the force-bearing block. When the side of the rotating leaf is fitted against the end of the force-bearing block, it indicates that the clamping block has entered the inner wall of the force-bearing block. Then, the rotating leaf is manually rotated to make the clamping block rotate synchronously. At this time, the shape of the clamping block is vertical as shown in the figure, and the clamping is completed. The side of the rotating leaf is close to one end of the force-bearing block to complete the clamping operation of the force block at the other end. This can further ensure the stability of the V-shaped groove body and the wedge body during work, and avoid slight shaking between the V-shaped groove body and the wedge body due to fit problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a bending device used in the production of CNC machine tool fixtures;

[0023] Figure 2 A schematic diagram of a cross-section and three-dimensional structure of a bending device for producing CNC machine tool fixtures;

[0024] Figure 3 This is a schematic diagram of the second cross-section of the three-dimensional structure of a bending device used in the production of CNC machine tool fixtures;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower mold, V-shaped groove and wedge;

[0026] Figure 5 This is a schematic diagram of the three-dimensional enlarged structure of the wedge, support plate and load-bearing block explosion front;

[0027] Figure 6 This is a three-dimensional enlarged structural diagram of the back of the explosion of the wedge, support plate and load-bearing block;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the weakened portion, screw hole and snap-in groove;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the side load-bearing plate, V-shaped support block and hollow side plate;

[0030] Figure 9 It is a schematic diagram of the three-dimensional structure of the V-shaped support block, the adapter pad and the force column;

[0031] Figure 10 It is a schematic diagram of the three-dimensional structure of the hollow side plate, placement groove and placement plate;

[0032] Figure 11 It is a schematic diagram of the three-dimensional structure of the side rectangular plate, spacer and load-bearing column;

[0033] Figure 12 It is a schematic diagram of the three-dimensional structure of the force-bearing block and the clamping column;

[0034] Figure 13 It is a schematic diagram of the three-dimensional structure of the clamping column, the clamping block and the rotating blade;

[0035] Figure 14 Schematic diagram of the three-dimensional structure of wedge mode 2.

[0036] Reference numerals:

[0037] 1. Bending machine body; 2. Lower die; 3. V-shaped groove; 301. Weakened portion; 302. Screw hole; 303. Snap-in groove; 4. Wedge; 401. Side force plate; 402. V-shaped support block; 403. Adapter pad; 404. Force column; 405. Hollow side plate; 406. Placement groove; 407. Placement plate; 408. Connecting plate; 5. Support plate; 501. Side rectangular plate; 502. Spacer; 503. Force column; 6. Force block; 601. Snap-in column; 602. Snap-in block; 603. Rotating blade; 604. Force groove.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following describes in detail a bending device for producing CNC machine tool fixtures provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0040] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0043] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0044] like Figures 1 to 14 The embodiment of the present invention provides a bending device for the production of CNC machine tool fixtures, including a bending machine body 1, a lower mold 2 is fixedly connected to the middle of the bending machine body 1, a V-shaped groove body 3 is installed on the top of the lower mold 2, a wedge 4 is clamped on the inner wall of the V-shaped groove body 3, a support plate 5 is installed at the bottom of the inner wall of the V-shaped groove body 3, and a force block 6 is slidably connected to the top of the lower mold 2; an auxiliary adjustment component, the auxiliary adjustment component is used to adjust the opening angle of the middle of the V-shaped groove body 3, the auxiliary adjustment component is connected to the wedge 4, the bending machine body 1 and the lower mold 2 are existing structures, but no further details are given, the V-shaped groove body 3 is made of metal, and the middle opening is V-shaped, which is similar to the existing V-shaped groove body mold, and the angle of the micro-deformation of the middle opening is (adjustment accuracy ±0.5°~1°), the shape of the wedge 4 is adapted to the shape of the inner wall of the V-shaped groove body 3, and the number of the wedges 4 is large, which is concentrated in that it is ±0.5°~1° (compared with the size of the inner wall of the V-shaped groove body 3 Figure 14 In the state of a small-sized wedge 4), the support plate 5 is made of metal with high strength and is attached to the bottom of the inner wall of the V-shaped groove 3. The force block 6 is made of metal with high strength and is clamped on both sides of the bottom of the V-shaped groove 3. The shape of the force block 6 is adapted to the shape of both sides of the bottom of the V-shaped groove 3.

[0045] In the present application, the angle of the top of the inner wall of the V-shaped trough 3 is changed by an auxiliary adjustment component, so that the V-shaped opening at the top of the V-shaped trough 3 is larger, and there is no need to remove and replace the V-shaped trough 3 as a whole. Moreover, the V-shaped trough 3 is made of metal as a whole, which has high strength, heavy weight, and is inconvenient to disassemble and assemble. By adjusting the position between the wedges 4, the V-shaped angle at the top of the V-shaped trough 3 is changed (adjustment accuracy ±0.5°~1°). This state can be well adapted to the production of small-angle fixtures, so that the cooperation effect between the upper and lower molds is better, reducing the tedious disassembly and assembly steps of the staff, reducing the errors caused by small angles in the fixture production, and ensuring the subsequent processing of the fixture.

[0046] like Figures 7 to 11As shown, a weakened portion 301 is provided on the inner wall of the V-shaped groove body 3, screw holes 302 are provided on both sides of the outer wall of the V-shaped groove body 3, a clamping groove 303 is provided at the bottom of the outer wall of the V-shaped groove body 3, an auxiliary adjustment component includes a side force plate 401 attached to the outer wall of the wedge body 4, a force column 404 is attached to the top of the wedge body 4, a V-shaped support block 402 is fixedly connected to the top of the V-shaped support block 402, an adapter pad 403 is fixedly connected to the top of the V-shaped support block 402, a hollow side plate 405 is attached to both sides of the outer wall of the wedge body 4, a placement groove 406 is provided on the outer wall of the hollow side plate 405, a placement plate 407 is clamped on the inner wall of the hollow side plate 405, and a connecting plate 408 is fixedly connected to the inner wall of the placement groove 406. A side rectangular plate 501 is clamped on the outer wall of the support plate 5, and spacers 502 are fixedly connected on both sides of the inner wall of the side rectangular plate 501. Several force-bearing columns 503 are installed in the middle position of the top of the side rectangular plate 501, and the weakened portion 301 is symmetrically distributed on the inner wall of the V-shaped groove body 3. The screw holes 302 are symmetrically opened on both sides of the V-shaped groove body 3, and there are several of them. The size of the V-shaped support block 402 is consistent with the size of the middle position of the V-shaped groove body 3, the size of the adapter pad 403 is consistent with the size of the top position of the V-shaped support block 402, the force-applying columns 404 are symmetrically distributed at the bottom of the V-shaped support block 402, the placement grooves 406 are linearly arrayed on the outer wall of the hollow side plate 405, and the size of the placement plate 407 is consistent with the size of the inner wall of the hollow side plate 405. The size of the adapter pad 403 is consistent with the size of the inner wall of the V-shaped groove 3, and the middle part of the side force plate 401 has a raised portion. The material of the adapter pad 403 has a certain flexibility compared with the material of the V-shaped groove 3, so that the adapter pad 403 fits the inner wall of the V-shaped groove 3. The cam 406 is a substantially rectangular shaped cam 408 that is secured to the bottom of the V-shaped groove 3 so that the cam 406 can be easily adjusted to fit the cam 406. The cam 406 is a substantially rectangular shaped cam 408 that is secured to the bottom of the V-shaped groove 3 so that the cam 406 can be easily adjusted to fit the cam 406.

[0047] Through the above structure, when it is necessary to change the opening angle of the middle part of the V-shaped groove body 3, the wedges 4 of different angles are snap-fitted and slid into the interior of the V-shaped groove body 3. Since the phase difference of the wedges 4 is (±0.5°~1°), when the wedges 4 are +0.5°~1°, the overall size of the wedges 4 is slightly larger than the size of the V-shaped groove body 3, and it is necessary to use existing equipment such as a hammer or a hard object to snap the wedges 4 into the inner wall of the V-shaped groove body 3. Moreover, the V-shaped groove body 3 and the wedge 4 are precision metal parts, and it is necessary to regularly apply lubricating oil to the surface and interior to improve the smoothness of the wedge 4 and facilitate entry into the V-shaped groove body 3. Since the size of the wedge 4 is larger than the V-shaped groove body 3 at this time, and the hardness of the wedge 4 is greater than that of the V-shaped groove body 3, the wedge 4 enters the interior of the V-shaped groove body 3. After that, the V-shaped groove body 3 will be propped up. Prioritizing, the side force plate 401 will contact the two sides of the wedge body 4, and the raised part in the middle of the side force plate 401 will ensure that the two sides of the wedge body 4 are in full contact with the raised part in the middle, and the raised part in the middle of the side force plate 401 has a certain deformation ability, which improves the adaptability and sealing to the side of the wedge body 4. Then the wedge body 4 continues to enter the inner wall of the V-shaped groove body 3 and contacts the force column 404. Since the wedge body 4 is larger as a whole, there will be a lifting scene after the top of the wedge body 4 contacts the force column 404, and the force column 404, V-shaped support block 402 and adapter pad 403 are fixed to each other, so that the lifting of the force column 404 will cause the V-shaped support block 402 and adapter pad 403 to be lifted up synchronously, which will also make The opening of the middle part of the V-shaped groove body 3 is adjusted, thereby completing the process of fine-tuning the opening of the middle part of the V-shaped groove body 3. At this time, the load-bearing column 503 at the bottom of the V-shaped groove body 3 will contact the bottom of the wedge 4, and because the load-bearing column 503 slides up and down on the top of the side rectangular plate 501, the load-bearing column 503 is in a sinking state at this time, and the top of the load-bearing column 503 will completely hit the bottom of the wedge 4, and there are several load-bearing columns 503, all of which will hit the bottom of the wedge 4. Then the support plate 5 is inserted into the inner wall of the V-shaped groove body 3 and located on the inner wall of the side rectangular plate 501. The bottom of the spacer 502 is used to prevent the support plate 5 from sliding into the inner wall of the side rectangular plate 501 and causing the outer wall of the load-bearing column 503 to conflict and be unable to move forward. The bottom of the load-bearing column 503 is supported by the spacer 502. In this state, the sliding of the support plate 5 can only contact the bottom of the spacer 502. In addition, the bottom of the spacer 502 is a smooth curved surface, which can ensure that the sliding effect of the support plate 5 is smoother, thereby improving the efficiency of fine-tuning. Finally, the entry of the wedge 4 will also affect the hollow side plates 405 on the side. The outer walls of the hollow side plates 405 will first contact the two sides of the wedge 4. In the process of the wedge 4 continuously entering the V-shaped groove 3, it will fully contact the outer walls of the hollow side plates 405. When the wedge 4 is not fully entered, the connecting plate 408 is snapped and slid into the inner wall of the hollow side plate 405 until it is fully snapped on the inner wall of the hollow side plate 405, and then the wedge 4 is continued to slide. In the process of the wedge 4 continuously sliding,406 , which will prevent the end of the wedge 4 from resting against the inner wall of the placement groove 406, causing sliding obstruction and affecting the adjustment of the top of the V-shaped groove 3. After the wedge 4 has completely entered the inner wall of the V-shaped groove 3, use the existing parts and bolts to screw into the screw holes 302 to ensure that all parts of the inner wall of the V-shaped groove 3 are fixed. The above steps are for the case where the angle of the V-shaped groove 3 is increased. In another state, when the wedge 4 is -0.5°~1°, the above steps are repeated. The only difference is that the force-applying column 404, the hollow side plate 405 and the force-bearing column 503 are subjected to less force, so that the opening in the middle of the V-shaped groove 3 is subjected to weaker force. The above steps are for the case where the angle of the V-shaped groove 3 is increased. In the other state, when the wedge 4 is -0.5°~1°, the above steps are repeated. The only difference is that the force-applying column 404, the hollow side plate 405 and the force-bearing column 503 are subjected to less force. Regarding the case where the trough 3 lowers its angle, it is worth mentioning that the above steps are written separately to more clearly define the stress conditions of each part. However, in actual operation, the moment the wedge 4 slides into the inner wall of the V-shaped trough 3, the stress conditions of the hollow side plate 405, the force-applying column 404, and the force-bearing column 503 are all synchronized. The synchronization of the three can effectively clamp and stabilize the wedge 4. On the one hand, it ensures that the upper die of the bending machine body 1 is fully stressed when in contact with the clamp, improving the accuracy of the bending. On the other hand, it improves the efficiency and speed of replacing the lower die, reduces the tedious steps for the staff, and improves the overall flexibility of the device.

[0048] In the above description, when the upper die of the bending machine body 1 is pressed down, the V-shaped groove part in the middle of the V-shaped groove body 3 is made of hard material, which is the same as the V-shaped groove body material in the existing equipment, and the weakened part 301 is slightly deformed. Moreover, when the upper die of the bending machine body 1 is pressed down, the force applied to each part will cause the V-shaped groove body 3 and the wedge body 4 to be completely wrapped with each other, and the stability and strength are not affected. Moreover, the core wedge body 4 and the V-shaped groove body 3 are made of metal hard material as a whole.

[0049] like Figures 12 to 13 As shown, both ends of the force-bearing block 6 are clamped with a clamping column 601, one side of the clamping column 601 is fixedly connected with a clamping block 602, the middle part of the clamping column 601 is fixedly connected with a rotating leaf 603, and the other side of the clamping column 601 is provided with a force groove 604, the clamping column 601 is clamped to one end of the force-bearing block 6, the clamping block 602 is clamped to the inner wall of the force-bearing block 6, the rotating leaf 603 is attached to the outer wall of the end of the force-bearing block 6, and the force groove 604 is provided on the side of the clamping column 601.

[0050] After the fine-tuning angle between the wedge 4 and the V-shaped groove 3 is determined through the above structure, the force-bearing block 6 is placed in the correct shape and snap-fitted into the two sides of the bottom of the V-shaped groove 3. After it is fixed, the clamping column 601 is horizontally clamped into one end of the force-bearing block 6, and the horizontal state of the clamping column 601 is that the clamping block 602 is placed horizontally, so that the overall shape of the clamping block 602 is adapted to the shape of the notch at the end of the force-bearing block 6. When the side of the rotating leaf 603 is fitted to the end of the force-bearing block 6, it indicates that the clamping block 602 has entered the inner wall of the force-bearing block 6. Then, the rotating leaf 603 is manually rotated to make the clamping block 602 rotate synchronously. At this time, the shape of the clamping block 602 is vertical as shown in FIG. Figure 13 To complete the clamping, the side of the rotating leaf 603 is pressed against one end of the force-bearing block 6 to complete the clamping operation of the force-bearing block 6 at the other end. This can further ensure the stability of the V-shaped groove body 3 and the wedge body 4 during work, and avoid slight shaking between the V-shaped groove body 3 and the wedge body 4 due to the problem of fit. Finally, when removing it, use a hook to hook the inside of the force-bearing groove 604 to take out the clamping column 601.

[0051] The working principle of the technical solution provided by the present invention is as follows:

[0052] In the initial state, the V-shaped groove body 3 and the wedge body 4 are just matched. When different small angle adjustments are required, the wedge bodies 4 with different small angles can be used to match the V-shaped groove body 3.

[0053] When the opening angle of the middle part of the V-shaped groove 3 needs to be changed, the wedges 4 of different angles are snap-fitted and slid into the interior of the V-shaped groove 3. Since the angle difference of the wedges 4 is (±0.5°~1°), when the wedges 4 are +0.When the angle is between 5° and 1°, the overall size of the wedge 4 is slightly larger than that of the V-shaped groove 3, and it is necessary to use existing equipment such as a hammer or a hard object to clamp the wedge 4 into the inner wall of the V-shaped groove 3. Since the size of the wedge 4 is larger than the V-shaped groove 3 at this time, and the hardness of the wedge 4 is greater than that of the V-shaped groove 3, the wedge 4 will prop up the V-shaped groove 3 after entering the interior of the V-shaped groove 3. Prioritize, the side force plate 401 will contact both sides of the wedge 4, and the raised portion in the middle of the side force plate 401 will ensure that both sides of the wedge 4 are in full contact with the raised portion in the middle, and the raised portion in the middle of the side force plate 401 has a certain deformation ability, which improves the adaptability and sealing to the side of the wedge 4. Then the wedge 4 continues to enter the inner wall of the V-shaped groove 3 and will contact the force-applying column 404. Since the wedge 4 is larger as a whole, there will be a lifting scene after the top of the wedge 4 contacts the force-applying column 404, and the force-applying column 404, the V-shaped support block 402 and the adapter pad 403 are fixed to each other, so that the lifting of the force-applying column 404 will cause the V-shaped support block 402 and the adapter pad 403 to be lifted synchronously, and after lifting, the opening part in the middle of the V-shaped groove 3 will be adjusted, thereby completing the process of fine-tuning the opening in the middle of the V-shaped groove 3. At this time, the force-bearing column 503 at the bottom of the V-shaped groove 3 will contact the bottom of the wedge 4, and since the force-bearing column 503 slides up and down on the top of the side rectangular plate 501, the force-bearing column 503 is in a sinking state at this time, and the top of the force-bearing column 503 will completely press against the bottom of the wedge 4, and the force-bearing column 503 There are several of them, all of which will be pressed against the bottom of the wedge 4. Then the support plate 5 is stuffed into the inner wall of the V-shaped groove 3 and located on the inner wall of the side rectangular plate 501, the bottom of the spacer 502. In order to prevent the support plate 5 from sliding into the inner wall of the side rectangular plate 501 and causing the outer wall of the load-bearing column 503 to conflict and be unable to move forward, the spacer 502 is used to prop up the bottom of the load-bearing column 503. In this state, the sliding of the support plate 5 can only contact the bottom of the spacer 502, and the bottom of the spacer 502 is a smooth curved surface, which can ensure that the sliding effect of the support plate 5 is smoother, thereby improving the efficiency of fine-tuning. Finally, the entry of the wedge 4 will also affect the hollow side plates 405 on the side. The outer walls of the hollow side plates 405 will first contact the two sides of the wedge 4, and the wedge 4 will continue to advance. When the wedge 4 is inserted into the V-shaped groove 3, it will fully contact the outer wall of the hollow side plate 405. When the wedge 4 is not fully inserted, the connecting plate 408 is snap-fitted and slid into the inner wall of the hollow side plate 405 until it is fully snap-fitted to the inner wall of the hollow side plate 405. Then, the wedge 4 is continued to slide. During the continuous sliding process of the wedge 4, it will contact the outer wall of the connecting plate 408. This can prevent the end of the wedge 4 from abutting against the inner wall of the placement groove 406, causing sliding obstruction and affecting the adjustment of the top of the V-shaped groove 3. After the wedge 4 is fully inserted into the inner wall of the V-shaped groove 3, the existing bolts are screwed into the screw holes 302 to ensure that all parts of the inner wall of the V-shaped groove 3 are fixed. The above steps are for the case where the angle of the V-shaped groove 3 is increased. In another state, when the wedge 4 is -0.When the angle is between 5° and 1°, repeat the above steps. The only difference is that the force-applying column 404, hollow side plate 405, and force-bearing column 503 are subjected to less force, resulting in less force on the opening in the middle of the V-shaped trough 3. This step is for the case where the angle of the V-shaped trough 3 is lowered. It is worth mentioning that the above steps are written separately to more clearly define the force conditions of each part. However, in actual operation, the moment the wedge 4 slides into the inner wall of the V-shaped trough 3, the force conditions of the hollow side plate 405, force-applying column 404, and force-bearing column 503 are all synchronized. This synchronization of the three elements effectively secures and stabilizes the wedge 4. This ensures that the upper die of the bending machine body 1 is fully stressed when in contact with the fixture, improving bending accuracy. It also improves the efficiency and speed of replacing the lower die, reduces the tedious steps for the staff, and improves the overall flexibility of the device.

[0054] In the above description, when the upper die of the bending machine body 1 is pressed down, the V-shaped groove part in the middle of the V-shaped groove body 3 is made of hard material, which is the same as the V-shaped groove body material in the existing equipment, and the weakened part 301 is slightly deformed. Moreover, when the upper die of the bending machine body 1 is pressed down, the force applied to each part will cause the V-shaped groove body 3 and the wedge body 4 to be completely wrapped with each other, and the stability and strength are not affected. Moreover, the core wedge body 4 and the V-shaped groove body 3 are made of metal hard material as a whole.

[0055] After the fine-tuning angle between the wedge 4 and the V-shaped groove 3 is determined, the force-bearing block 6 is placed in the correct shape and snap-fitted into both sides of the bottom of the V-shaped groove 3. After it is fixed, the snap-fitting column 601 is snap-fitted into one end of the force-bearing block 6 horizontally, and the horizontal state of the snap-fitting column 601 is that the snap-fitting block 602 is placed horizontally, so that the overall shape of the snap-fitting block 602 is adapted to the shape of the notch at the end of the force-bearing block 6. When the side of the rotating leaf 603 is fitted to the end of the force-bearing block 6, it indicates that the snap-fitting block 602 has entered the inner wall of the force-bearing block 6. Then, the rotating leaf 603 is manually rotated to make the snap-fitting block 602 rotate synchronously. At this time, the shape of the snap-fitting block 602 is vertical as shown in FIG. Figure 13 To complete the clamping, the side of the rotating leaf 603 is pressed against one end of the force-bearing block 6 to complete the clamping operation of the force-bearing block 6 at the other end. This can further ensure the stability of the V-shaped groove body 3 and the wedge body 4 during work, and avoid slight shaking between the V-shaped groove body 3 and the wedge body 4 due to the problem of fit. Finally, when removing it, use a hook to hook the inside of the force-bearing groove 604 to take out the clamping column 601.

[0056] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A bending device for producing CNC machine tool fixtures, comprising a bending machine body, characterized in that: The middle part of the bending machine body is fixedly connected to the lower mold, the top of the lower mold is installed with a V-shaped groove body, the inner wall of the V-shaped groove body is clamped with a wedge body, the shape of the wedge body is adapted to the shape of the inner wall of the V-shaped groove body, the bottom of the inner wall of the V-shaped groove body is installed with a support plate, and the top of the lower mold is slidably connected to a force block; An auxiliary adjustment component, the auxiliary adjustment component is used to adjust the opening angle of the middle portion of the V-shaped groove body, and the auxiliary adjustment component is connected to the wedge body; The auxiliary adjustment assembly includes a side force plate attached to the outer wall of the wedge, a force column attached to the top of the wedge, a V-shaped support block fixedly connected to the top of the V-shaped support block, and an adapter pad fixedly connected to the top of the V-shaped support block; A side rectangular plate is clamped on the outer wall of the support plate, and spacers are fixedly connected to both sides of the inner wall of the side rectangular plate. The bottom of the spacer is attached to the top of the support plate, and a plurality of load-bearing columns are installed in the middle of the top of the side rectangular plate; The size of the V-shaped support block is consistent with the size of the middle position of the V-shaped groove body, the size of the adapter pad is consistent with the size of the top position of the V-shaped support block, and the force columns are symmetrically distributed at the bottom of the V-shaped support block.

2. The bending device for producing CNC machine tool fixtures according to claim 1, characterized in that: Hollow side plates are fitted on both sides of the outer wall of the wedge, a placement groove is opened on the outer wall of the hollow side plate, a placement plate is clamped on the inner wall of the hollow side plate, and a connecting plate is fixedly connected to the inner wall of the placement groove.

3. The bending device for producing CNC machine tool fixtures according to claim 1, characterized in that: A weakened portion is provided on the inner wall of the V-shaped groove body, screw holes are provided on both sides of the outer wall of the V-shaped groove body, and a clamping groove is provided on the bottom of the outer wall of the V-shaped groove body.

4. The bending device for producing CNC machine tool fixtures according to claim 1, characterized in that: Both ends of the force-bearing block are clamped with clamping columns, one side of the clamping column is fixedly connected to the clamping block, the middle of the clamping column is fixedly connected to the rotating leaf, and the other side of the clamping column is provided with a force-bearing groove.

5. The bending device for producing CNC machine tool fixtures according to claim 2, characterized in that: The placement slots are linearly arrayed on the outer wall of the hollow side plate. The size of the placement plate is adapted to the size of the inner wall of the hollow side plate. The length of the connecting plate is adapted to the length of the placement slots.

6. The bending device for producing CNC machine tool fixtures according to claim 3, characterized in that: The weakened portions are symmetrically distributed on the inner wall of the V-shaped groove body, and the screw holes are symmetrically opened on both sides of the V-shaped groove body, and there are several of them.

7. The bending device for producing CNC machine tool fixtures according to claim 1, characterized in that: The middle part of the side rectangular plate is hollowed out, the size of the support plate is adapted to the size of the hollowed-out middle part of the side rectangular plate, the outer wall of the load-bearing column is slidably connected to the middle position of the top of the side rectangular plate, and the bottom is attached to the top of the spacer.

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