A straightening machine

Abstract

The utility model relates to a straightening machine, including the main shaft device for clamping and driving workpiece rotation, with the straightening mobile device of main shaft device connection, install the straightening seat of straightening mobile device's sliding table, the angle straightening board of rotation being located on the straightening seat, be located on the angle straightening board and with angle drive arrangement, be located on the angle straightening board angle straightening device, be located in the straightening fixed plate of one end of straightening seat, first fixed device and detection device and be located in the second fixed device of straightening fixed plate other end. The straightening machine is pressed through the main shaft device and drives workpiece rotation, through straightening mobile device and drive angle straightening device, first fixed device and second fixed device reciprocating straightening to workpiece, through detection device real -time detection workpiece's state, through angle drive arrangement and drive angle straightening device to workpiece straightening, reduce the number of times of workpiece reciprocating straightening, greatly improved the efficiency of straightening.

Description

Technical Field

[0001] This utility model relates to a straightening machine, and more particularly to a straightening machine. Background Technology

[0002] Existing straightening machines primarily use two fixed straightening rollers in conjunction with a lifting straightening roller for straightening. The two fixed straightening rollers are located on either side of the lifting straightening roller, as shown in Chinese Patent CN213001935U, a high-precision straightening machine for straight square rails. When dealing with workpieces with large bending angles, straightening can only be achieved through multiple reciprocating motions, resulting in low straightening efficiency. Furthermore, the straightening effect produced by existing straightening machines is poor, failing to achieve high-precision straightening. Utility Model Content

[0003] To address the aforementioned problems of low straightening efficiency and poor straightening results, this utility model provides a straightening machine, the specific technical solution of which is as follows: A straightening machine includes a spindle assembly for clamping and rotating a workpiece, and further includes: a straightening moving device, the spindle assembly being disposed at one end of the straightening moving device; a straightening seat, disposed on a slide of the straightening moving device; an angle straightening plate rotatably disposed on the straightening seat; an angle driving device, disposed on the straightening seat and connected to the angle straightening plate; an angle straightening device, disposed on the angle straightening plate; a straightening fixing plate, disposed at one end of the straightening seat; a first fixing device, disposed on the straightening fixing plate; a detection device, disposed on one side of the first fixing device; and a second fixing device. The first fixing device and the detection device are located at the other end of the straightening fixing plate; wherein the angle straightening device and the second fixing device are both located on the same side of the spindle device, and the first fixing device and the detection device are located on the other side of the spindle device; the angle driving device is used to drive the angle straightening device to rotate through the angle straightening plate to adjust the included angle between the angle straightening device and the second fixing device; the straightening moving device is used to drive the angle straightening device, the second fixing device, the first fixing device and the detection device to reciprocate along the axial direction of the spindle device to make the workpiece reciprocate straight.

[0004] Preferably, the angle straightening device, the first fixing device, and the second fixing device have the same structure. The first fixing device includes: a straightening base with a guide hole and a locking hole communicating with the guide hole; a straightening slider slidably disposed in the guide hole and having a locking groove; a straightening roller rotatably disposed at the end of the straightening slider; a straightening cylinder disposed at one end of the straightening base and connected to the straightening slider; a locking cylinder disposed on the straightening base; and a locking block disposed on the locking cylinder and movably inserted into the locking hole, and disposed opposite to the locking groove, for inserting into the locking groove to lock the position of the straightening slider.

[0005] Furthermore, it also includes: a scale mark, which is provided on the straightening slider and is disposed opposite to the end of the straightening base.

[0006] Furthermore, it also includes: a connecting slider, movably disposed within the guide hole and connected to the straightening cylinder; and a straightening connecting rod, respectively connected to the connecting slider and the straightening slider.

[0007] Furthermore, the two ends of the straightening connecting rod are respectively provided with a connecting screw and a connecting block. The connecting screw is connected to the connecting slider by a thread, and the connecting block is rotatably disposed in the rotating groove of the straightening slider.

[0008] Preferably, the angle driving device includes: an angle fixing seat disposed on the straightening seat; a first angle rotating seat rotatably disposed on the angle fixing seat; an angle adjusting screw rotatably disposed on the first angle rotating seat; an angle screw nut disposed on the angle adjusting screw; a second angle rotating seat disposed on the angle screw nut; an angle adjusting seat disposed on the angle straightening plate and rotatably connected to the second angle rotating seat; and an angle rotation motor disposed on the angle fixing seat and connected to the angle adjusting screw.

[0009] Preferably, it further includes: a first position adjustment device, which is connected to the straightening fixing plate and the second fixing device respectively, and is used to adjust the distance between the second fixing device and the first fixing device.

[0010] Preferably, it further includes: an angle position adjustment device, which is connected to the angle straightening plate and the angle straightening device respectively, and is used to adjust the position of the angle straightening device.

[0011] Preferably, it further includes: a rotating device, which is connected to the straightening seat and the angle straightening plate respectively.

[0012] Preferably, the detection device includes: a detection base disposed on the straightening and fixing plate; a detection slider slidably disposed on the detection base; a detection slide rod disposed on the detection slider; a detection guide rod disposed at the end of the detection slide rod; a linear encoder disposed on the detection base and opposite to the detection slide rod for detecting the position of the detection slide rod; and a detection cylinder disposed on the detection base and connected to the detection slider for causing the detection guide rod to move against the workpiece.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a straightening machine that drives the workpiece to rotate via a spindle device, and drives the angle straightening device, the first fixing device and the second fixing device to reciprocate and straighten the workpiece via a straightening moving device. The workpiece status is detected in real time by a detection device, and the angle straightening device is driven by an angle driving device to straighten the workpiece. This reduces the number of times the workpiece is reciprocated for straightening and greatly improves the straightening efficiency.

[0014] In addition, it can be used with workpieces of various shapes, such as round bars and tubes, as well as bars and tubes with non-circular cross-sections. It can be used with a variety of irregular profiles, making it widely applicable and improving its versatility. Attached Figure Description

[0015] Figure 1 This is a top view of this application; Figure 2 This is a stereoscopic view from the first perspective of this application; Figure 3 This is a stereoscopic view from the second perspective of this application; Figure 4 This is a side view of this application; Figure 5 This is a three-dimensional view of the first fixing device; Figure 6 This is a sectional view of the first fixing device; Figure 7 It is an assembly diagram of the straightening slider, the straightening cylinder, the connecting slider, and the straightening connecting rod; Figure 8 This is a structural diagram of the straightening base; Figure 9 This is an assembly diagram of the locking cylinder, locking block, and locking connecting seat; Figure 10 It is an assembly drawing of the straightening seat, angle straightening plate, angle driving device and angle straightening device; Figure 11 yes Figure 10 Side view; Figure 12 This is a schematic diagram of the angle driving device; Figure 13 This is a cross-sectional view of the angle drive device. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings.

[0017] like Figures 1 to 13 As shown, a straightening machine includes a spindle assembly 7, a straightening moving device 5, a straightening seat 31, an angle straightening plate 32, an angle driving device 2, an angle straightening device 30, a straightening fixing plate 83, a first fixing device 10, a detection device 6, and a second fixing device 20. The spindle assembly 7 is installed at one end of the straightening moving base 51 of the straightening moving device 5, and is used to clamp the workpiece and drive the workpiece to rotate. The straightening seat 31 is fixed on the slide of the straightening moving device 5, and the top of the straightening seat 31 is rotatably connected to the angle straightening plate 32. The bottom of the angle straightening plate 32 is connected to the angle driving device 2, and the angle driving device 2 is installed at the bottom of the straightening seat 31. The angle straightening device 30 is installed on the top of the angle straightening plate 32. The straightening fixing plate 83 is fixed to the straightening seat. One end of the straightening device 31 is located above the angle straightening plate 32; the first fixing device 10 and the detection device 6 are both fixed at one end of the top of the straightening fixing plate 83, and the second fixing device 20 is fixed at the other end of the straightening fixing plate 83; the angle straightening device 30 and the second fixing device 20 are both located on the same side of the spindle device 7, and the first fixing device 10 and the detection device 6 are located on the other side of the spindle device 7; the angle driving device 2 is used to drive the angle straightening device 30 to rotate through the angle straightening plate 32 to adjust the angle between the angle straightening device 30 and the second fixing device 20; the straightening moving device 5 is used to drive the angle straightening device 30, the second fixing device 20, the first fixing device 10 and the detection device 6 to reciprocate along the axial direction of the spindle device 7 so that the workpiece is reciprocated and straightened.

[0018] The spindle assembly 7 is a commercially available, mature product used to drive the workpiece to rotate.

[0019] The straightening moving device 5 is a mature existing linear module structure, which will not be described in detail here. The motor, linear guide pair, and ball screw are all fixed on the straightening moving base 51.

[0020] One end of the workpiece to be straightened is fixed on the spindle device 7. The spindle device 7 drives the workpiece to rotate. The straightening module drives the angle straightening device 30, the first fixing device 10, and the second fixing device 20 to reciprocate along the axis of the workpiece, reciprocating to straighten it. During this process, the detection device 6 detects the bending of the workpiece. Then, the angle driving device 2 drives the angle straightening device 30 to rotate to a suitable angle to straighten the workpiece, reducing the number of reciprocating straightening operations. After straightening is completed in one direction, the spindle device 7 drives the workpiece to rotate by a set angle to straighten from another direction until the workpiece has rotated one revolution, completing the overall straightening. Because the straightening is performed sequentially along the circumferential direction, the straightening effect of the workpiece is greatly improved, ensuring the straightness or concentricity of the straightened workpiece, achieving high-precision straightening, and with high straightening efficiency.

[0021] Since the workpiece is straightened by the spindle device 7, the workpiece will not rotate during straightening, which solves the problem that the workpiece rotates during the straightening of irregular workpieces, making straightening impossible. Therefore, it can also straighten irregular workpieces.

[0022] The angle straightening device 30, the first fixing device 10, and the second fixing device 20 have basically the same structure. The first fixing device 10 includes a straightening base 11, a straightening slider 13, a straightening roller 12, a straightening cylinder 14, a locking cylinder 17, and a locking block 18. The straightening base 11 has a guide hole 111 along its length, which is a through hole. A locking hole 113 is located on the top of the straightening base 11, communicating with and perpendicular to the guide hole 111. The straightening slider 13 is slidably inserted into the guide hole 111. A locking groove 131 is provided on the side of the straightening slider 13. Both ends of the straightening slider 13 are connected to the piston rods of the straightening roller 12 and the locking cylinder 17, respectively. The straightening roller 12 is rotatably connected to the end of the straightening slider 13, allowing it to rotate freely. The straightening roller 12 is located at one end of the straightening base 11. The straightening cylinder 14 is fixed to the other end of the straightening base 11. The locking cylinder 17 is fixed on the top of the straightening base 11 and located above the locking hole 113. The piston rod of the locking cylinder 17 is connected to the locking block 18. The locking block 18 is movably inserted into the locking hole 113 and is opposite to the locking groove 131. When it is necessary to lock the position of the straightening slider 13 so that the position of the straightening roller 12 remains unchanged for final straightening, the locking cylinder 17 drives the locking block 18 to insert into the locking groove 131, so that the position of the straightening slider 13 remains unchanged, and thus the position of the straightening roller 12 remains unchanged.

[0023] During initial straightening, the workpiece is straightened by the pressure of the cylinder. After repeated straightening, when the straightness of the workpiece is high, a larger pressure is required. Since the position of the straightening roller cannot be changed, the position of the straightening roller 12 is locked by the locking block 18, so that the pressure adjustment cylinder 14 is ineffective.

[0024] The use of a straightening cylinder 14 allows the straightening roller 12 to have greater freedom during the initial straightening of the workpiece, and requires less pressure, making the initial straightening of the workpiece easier. Because the initial deformation of the workpiece is large, the required straightening pressure is small. At this time, by repeatedly rolling with a small straightening pressure, the straightness of the workpiece after final straightening is high. At the same time, it solves the problem that the straightening machine requires a large straightening pressure, reduces the requirements for the overall strength of the straightening machine, reduces equipment costs, and does not affect the straightening efficiency.

[0025] When performing the final straightening, since the deformation angle of the workpiece is very small, a large pressure is required. Therefore, the position of the straightening roller 12 is limited by the locking block 18 and the locking groove 131, eliminating the need for the cylinder to provide the final straightening pressure. This reduces the requirements for the cylinder and allows the use of a smaller cylinder, thus reducing the cost of the cylinder.

[0026] The straightening achieved by using the straightening cylinder 14 to provide constant pressure is the same as the gradual straightening achieved by the motor and ball screw, and the time required is also basically solved, but it can greatly reduce the cost of the equipment and the cost of use.

[0027] To limit the position of the straightening roller 12 and prevent it from rotating axially, the guide hole 111 is a square hole and the straightening slider 13 is a square block. The square hole and the square straightening slider 13 prevent the straightening roller from rotating axially, and also solve the problems of easy mode and low pressure bearing capacity caused by the groove structure set along the length direction of the straightening slider 13 by pin engagement.

[0028] To facilitate the insertion of the locking block 18 into the locking groove 131, the locking groove 131 is a V-shaped groove, and the end of the locking block 18 is tapered and matches the locking groove 131.

[0029] To facilitate observation of the position of the straightening roller 12, the first fixing device 10 also includes a scale mark 132, which is set on the straightening slider 13 and is positioned opposite to the end of the straightening base 11.

[0030] To facilitate adjusting the position of the straightening roller 12 according to different workpieces—for example, workpieces of different diameters require different positions when locking the straightening roller 12, meaning the distance between the straightening rollers 12 on both sides of the workpiece must match the outer diameter of the workpiece—the first fixing device 10 also includes a connecting slider 15 and a straightening connecting rod 16. The connecting slider 15 is movably inserted into the guide hole 111. One end of the connecting slider 15 is connected to the straightening cylinder 14, and the other end is connected to one end of the straightening connecting rod 16. The other end of the straightening connecting rod 16 is connected to the straightening slider 13, thus adjusting the position of the straightening roller 12. Furthermore, the two ends of the straightening connecting rod 16 are respectively provided with a connecting screw 161 and a connecting block 163. One end of the connecting slider 15 is provided with a connecting screw hole 151. The connecting screw 161 and the connecting screw hole 151 are connected by threads to adjust the distance between the connecting slider 15 and the straightening slider 13. The diameter of the connecting block 163 at the end of the straightening link 16 is larger than the diameter of the straightening link 16, forming a T-shaped structure. The connecting block 163 is movably inserted into the rotating groove 135 at the end of the straightening slider 13. The rotating groove 135 is a T-shaped groove.

[0031] To facilitate direct adjustment of the straightening connecting rod 16, the straightening base 11 is provided with an adjustment groove 122 communicating with the guide hole 111. The adjustment groove 122 is also positioned opposite to the straightening connecting rod 16. The straightening connecting rod 16 is provided with a tool groove 162, which can be engaged with an open-end wrench to achieve rotation of the straightening connecting rod 16. The tool groove 162 is positioned opposite to the adjustment groove 122. The adjustment groove 122 allows the straightening connecting rod 16 to be adjusted without disassembling the straightening cylinder 14, improving efficiency.

[0032] To facilitate the fixing of the locking cylinder 17, the first fixing device 10 also includes a locking connecting seat 19. The locking connecting seat 19 is fixed to the top of the straightening base 11 and connected to the locking cylinder 17. The locking connecting seat 19 has a through hole inside to facilitate the installation and movement of the locking block 18. Furthermore, to facilitate the observation of the state of the locking block 18, the locking connecting seat 19 is also provided with several locking observation slots 191 for observing the locking block 18.

[0033] The angle straightening device 30 and the second fixing device 20 are located on opposite sides of the first fixing device 10, and both are on the same side, forming a triangle. One side of the workpiece rests on the straightening roller 12 of the first fixing device 10, and the other side rests on the straightening rollers 12 of the second fixing device 20 and the angle straightening device 30. When the workpiece has a large curvature, in order to improve the straightening efficiency, the angle straightening device 30 can be used to adjust the angle between itself and the second fixing device 20 during straightening, so as to perform reverse straightening on the workpiece, quickly straighten the workpiece, improve the straightness of the workpiece, and even straighten workpieces that are curved close to a circle. This solves the problem that existing three-point straightening equipment cannot directly straighten workpieces with excessively large curvature angles or those that are close to a circle. In addition, since reverse straightening of the curvature angle during straightening can improve the straightening efficiency and reduce the number of reciprocating straightening operations, this method can also be used to straighten workpieces.

[0034] Specifically, the angle driving device 2 includes an angle fixing seat 21, a first angle rotating seat 23, an angle adjusting screw 25, an angle screw nut 26, a second angle rotating seat 27, an angle adjusting seat 28, and an angle rotation motor 22. The angle fixing seat 21 is installed at the bottom of one end of the straightening seat 31. The first angle rotating seat 23 is rotatably installed inside the angle fixing seat 21 and is rotatably connected to the angle adjusting screw 25 through a bearing seat. The angle adjusting screw 25 is connected to the angle screw nut 26, which is fixed on the second angle rotating seat 27. The second angle rotating seat 27 is rotatably installed on the angle adjusting seat 28, which is fixed to the bottom of the angle straightening plate 32. The angle rotation motor 22 is located on the angle fixing seat 21 and is connected to the angle adjusting screw 25. By adjusting the angle of the angle straightening device 30 through the angle rotation motor 22 and the screw pair, both the accuracy of the rotation angle and the reliable clamping force can be guaranteed.

[0035] For ease of assembly, the first angle rotating seat 23 has symmetrically arranged first rotating shafts 231 at both ends, and the first rotating shafts 231 are rotatably mounted on the angle fixing seat 21; the second angle rotating seat 27 has symmetrically arranged second rotating shafts 271 at both ends, and the second rotating shafts 271 are rotatably mounted on the angle adjusting seat 28. Furthermore, to improve the flexibility of rotation of the first angle rotating seat 23 and the second angle rotating seat 27, the angle driving device 2 also includes a first rotating sleeve 24 and a second rotating sleeve 29. The first rotating sleeve 24 is fixed on the angle fixing seat 21 and rotatably connected to the first rotating shaft 231; the second rotating sleeve 29 is fixed on the angle adjusting seat 28 and rotatably connected to the second rotating shaft 271.

[0036] To adapt to different workpieces and achieve a wider angle range for straightening, the angle adjustment device of the straightening machine also includes an angle position adjustment device and a first position adjustment device. The angle position adjustment device is connected to the angle straightening plate 32 and the angle straightening device 30 respectively, and is used to adjust the position of the angle straightening device 30. Specifically, the angle position adjustment device includes an angle adjustment slider 42, an angle adjustment plate 44, an angle adjustment screw 43, and an angle adjustment handle 45. The angle adjustment slider 42 is located at the bottom of the angle straightening base of the angle straightening device 30. The angle adjustment slider 42 is a dovetail block, and the angle adjustment slider 42 is slidably inserted into the angle adjustment groove 41 of the angle straightening plate 32. The angle adjustment groove 41 is a dovetail groove. Angle adjustment plate 44 is fixed to one end of angle adjustment slide 41 and is rotatably connected to one end of angle adjustment screw 43 via a bearing. Angle adjustment screw 43 is also connected to angle adjustment slider 42 via a thread, which drives the angle adjustment slider 42 to move, thereby adjusting the distance between angle straightening device 30 and first fixing device 10. Angle adjustment handle 45 is fixed to the end of angle adjustment screw 43 for easy rotation of angle adjustment screw 43. The structure of the first position adjustment device is the same as the angle position adjustment structure. The first position adjustment device is connected to straightening fixing plate 83 and second fixing device 20 respectively, and is used to adjust the distance between second fixing device 20 and first fixing device 10.

[0037] The first position adjustment device is connected to the straightening fixing plate 83 and the second fixing device 20 respectively, and is used to adjust the distance between the second fixing device 20 and the first fixing device 10. Specifically, the first position adjustment device includes a first adjusting slider, a first adjusting plate 85, a first adjusting screw 81, and a first adjusting handle 82; the first adjusting slider is located at the bottom of the first straightening base of the second fixing device 20, and the first adjusting slider is a dovetail block. The first adjusting slider is slidably inserted into the first adjusting groove 86 of the straightening fixing plate 83, and the first adjusting groove 86 is a dovetail groove. The first adjusting plate 85 is fixed to one end of the first adjusting groove 86 and is rotatably connected to one end of the first adjusting screw 81 through a bearing. The first adjusting screw 81 is also connected to the first adjusting slider through a thread, which is used to drive the first adjusting slider to move, thereby realizing the adjustment of the distance between the second fixing device 20 and the first fixing device 10, that is, realizing the adjustment of the distance between the movable pressing device and the angle straightening device 30; the first adjusting handle 82 is fixed to the end of the first adjusting screw 81, which facilitates the rotation of the first adjusting screw 81.

[0038] The detection device 6 includes a detection base, a detection slider, a detection slide rod, a detection guide rod, a linear encoder, and a detection cylinder. The detection base is fixed on the straightening fixing plate 83 and connected to the detection slider via a linear guide pair. The detection slide rod is mounted on the top of the detection slider, which is also connected to the piston rod of the detection cylinder. The detection cylinder is fixed to the end of the detection base. The detection guide rod is fixed to the end of the detection slide rod and is vertically arranged. The linear encoder is fixed on the detection base and is arranged opposite to the detection slide rod, used to detect the position of the detection slide rod. The detection cylinder is used to move the detection guide rod against the workpiece. The air pressure entering the detection cylinder is relatively small to reduce the pressure of the detection guide rod on the workpiece; it is only necessary to ensure that the detection guide rod can reach the workpiece. The linear encoder obtains the position of the detection slide rod, thereby obtaining the angle and position of the workpiece, providing the angle drive device 2 with the position for angle adjustment. The detection device 6 can also obtain the straightness of the workpiece to output the detection results and determine whether straightening is completed according to the set straightening requirements.

[0039] During straightening, the workpiece can also be straightened by the angle straightening device 30 according to the angle detected by the detection device 6; the straightening moving device 5 drives the workpiece to be straightened in sequence.

[0040] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A straightening machine comprising a spindle device (7) for clamping and rotating a workpiece, characterized in that, Also includes: A straightening moving device (5), wherein the main shaft device (7) is located at one end of the straightening moving device (5); The straightening seat (31) is provided on the slide of the straightening moving device (5); Angle straightening plate (32) is rotatably mounted on the straightening seat (31); An angle driving device (2) is mounted on the straightening seat (31) and connected to the angle straightening plate (32); An angle straightening device (30) is provided on the angle straightening plate (32); A straightening fixing plate (83) is provided at one end of the straightening seat (31); The first fixing device (10) is disposed on the straightening fixing plate (83); The detection device (6) is located on one side of the first fixing device (10); as well as The second fixing device (20) is located at the other end of the straightening fixing plate (83); The angle straightening device (30) and the second fixing device (20) are both located on the same side of the spindle device (7), while the first fixing device (10) and the detection device (6) are located on the other side of the spindle device (7). The angle driving device (2) is used to drive the angle straightening device (30) to rotate through the angle straightening plate (32) to adjust the angle between the angle straightening device (30) and the second fixing device (20); The straightening moving device (5) is used to drive the angle straightening device (30), the second fixing device (20), the first fixing device (10) and the detection device (6) to reciprocate along the axis of the main shaft device (7) so that the workpiece is reciprocated and straightened.

2. A straightening machine according to claim 1, characterised in that The angle straightening device (30), the first fixing device (10), and the second fixing device (20) have the same structure. The first fixing device (10) includes: The straightening base (11) is provided with a guide hole (111) and a locking hole (113) communicating with the guide hole (111). The straightening slider (13) is slidably disposed in the guide hole (111) and is provided with a locking groove (131). A straightening roller (12) is rotatably mounted at the end of the straightening slider (13); A straightening cylinder (14) is located at one end of the straightening base (11) and is connected to the straightening slider (13); A locking cylinder (17) is disposed on the straightening base (11); and A locking block (18) is provided on the locking cylinder (17) and is movably inserted into the locking hole (113) and is arranged opposite to the locking groove (131) for inserting into the locking groove (131) to lock the position of the straightening slider (13).

3. A straightening machine according to claim 2, characterised in that Also includes: The scale mark (132) is located on the straightening slider (13) and is positioned opposite to the end of the straightening base (11).

4. A straightening machine according to claim 2, characterized in that, Also includes: The connecting slider (15) is movably disposed in the guide hole (111) and connected to the straightening cylinder (14); as well as The straightening connecting rod (16) is connected to the connecting slider (15) and the straightening slider (13) respectively.

5. A straightening machine according to claim 4, characterized in that, The straightening connecting rod (16) is provided with a connecting screw (161) and a connecting block (163) at both ends. The connecting screw (161) is connected to the connecting slider (15) by a thread. The connecting block (163) is rotatably disposed in the rotating groove (135) of the straightening slider (13).

6. A straightening machine according to claim 1, characterized in that, The angle driving device (2) includes: Angle fixing seat (21) is provided on the straightening seat (31); The first angle rotating seat (23) is rotatably mounted on the angle fixed seat (21); An angle adjusting screw (25) is rotatably mounted on the first angle rotating seat (23); Angle screw nut (26) is provided on the angle adjusting screw (25); The second angle rotating seat (27) is provided on the angle screw nut (26); An angle adjustment seat (28) is disposed on the angle straightening plate (32) and is rotatably connected to the second angle rotating seat (27); and An angle rotation motor (22) is mounted on the angle fixing seat (21) and connected to the angle adjusting screw (25).

7. A straightening machine according to claim 1, characterized in that, Also includes: A first position adjustment device is connected to the straightening fixing plate (83) and the second fixing device (20) respectively, and is used to adjust the distance between the second fixing device (20) and the first fixing device (10).

8. A straightening machine according to claim 1, characterized in that, Also includes: An angle position adjustment device is connected to the angle straightening plate (32) and the angle straightening device (30) respectively, and is used to adjust the position of the angle straightening device (30).

9. A straightening machine according to claim 1, characterized in that, Also includes: The rotating device (33) is connected to the straightening seat (31) and the angle straightening plate (32) respectively.

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