Steel bar bending device and automatic steel bar bending production line

Abstract

The utility model belongs to the technical field of steel bar bending, and discloses a steel bar bending device and an automatic steel bar bending production line, the steel bar bending device comprises a base, a bending driving piece and a monitoring assembly, and a bending die is installed on the base; a driving shaft is arranged at the output end of the bending driving part, a bending shaft sleeve is eccentrically arranged on the driving shaft, and the bending driving part can drive the bending shaft sleeve to move in the axial direction of the driving shaft and can drive the driving shaft to rotate; the monitoring assembly comprises a first monitoring part and two second monitoring parts, the first monitoring part and / or the second monitoring parts are / is connected with the bending driving part, the first monitoring part is arranged on the driving shaft, the two second monitoring parts are adjustably arranged on a rotating path of the first monitoring part, and when the first monitoring part is opposite to the second monitoring parts, the driving shaft stops rotating; the automatic reinforcing steel bar bending production line comprises the reinforcing steel bar bending device, automatic reinforcing steel bar bending is achieved, the reinforcing steel bar bending precision is improved, and bending consistency and stability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar bending, in particular to a steel bar bending device and an automatic steel bar bending production line. Background Art

[0002] At present, the bending mechanism is indispensable in the forming process of stirrups and has been widely used.

[0003] The bending mechanism in the existing technology can realize unidirectional bending and bidirectional bending. However, when realizing multiple bidirectional bending on the same steel bar, the rotating shaft is frequently in the process of bidirectional conversion. Therefore, the problem of reduced bending accuracy will inevitably occur during the bending process, resulting in inconsistent bending. Utility Model Content

[0004] One of the purposes of the present invention is to provide a steel bar bending device that improves the accuracy of steel bar bending and ensures bending consistency and stability;

[0005] The second purpose of the present invention is to provide an automatic steel bar bending production line to realize automated steel bar bending, improve the accuracy of steel bar bending, and ensure bending consistency and stability.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Steel bar bending device, comprising:

[0008] A base, wherein the base has a mounting position for mounting a bending mold;

[0009] A bending drive member, wherein the output end of the bending drive member is provided with a driving shaft, a bending sleeve is eccentrically provided on the driving shaft, and the bending drive member is capable of driving the bending sleeve to move along the axial direction of the driving shaft and to drive the driving shaft to rotate;

[0010] The monitoring component includes a first monitoring component and a second monitoring component. The first monitoring component and / or the second monitoring component are connected to the bending driving component. The first monitoring component is arranged on the driving shaft. The two second monitoring components are adjustably arranged on the rotation path of the first monitoring component. When the first monitoring component is opposite to the second monitoring component, the bending driving component stops driving the driving shaft to rotate.

[0011] In some embodiments, the monitoring assembly further includes a fixing plate connected to the base, the fixing plate being provided with an arc-shaped placement hole, and the second monitoring component being detachably disposed in the arc-shaped placement hole.

[0012] In some embodiments, one of the first monitoring component and the second monitoring component includes a sensing switch, and the other includes a sensing plate.

[0013] In some embodiments, the monitoring assembly further includes a third monitoring component, and the position of the third monitoring component is adjustably disposed between the two second monitoring components.

[0014] In some embodiments, the bending drive member includes a rotational drive part and a linear drive part, a limiting slot is provided at one end of the drive shaft, a limiting block is provided at the output end of the linear drive part, the limiting block is provided in the limiting slot, the limiting block rotates in the limiting slot, and the linear drive part pushes the drive shaft to move along its axial direction through the limiting block; a limiting key is provided at one of the output end of the rotational drive part and the outer wall of the drive shaft, and a key slot that slides with the limiting key is provided at the other end, the key slot is provided along the axial direction of the drive shaft, and the rotational drive part drives the drive shaft to rotate.

[0015] In some embodiments, a mounting plate is provided on the base, the mounting position is provided on one side of the mounting plate, the bending drive member is provided on the other side of the mounting plate, and a bearing is provided on the side of the mounting plate away from the mounting position, and the drive shaft can be rotatably inserted in the bearing.

[0016] In some embodiments, a height-adjustable support plate is provided on the mounting plate.

[0017] In some embodiments, it also includes a frame, on which a walking rail and a rack in the same direction as the walking rail are provided, and the base is provided with walking wheels, and the walking wheels are movably provided on the walking rail; the base is provided with a walking drive component, and the walking drive component is provided with a gear, and the gear is engaged with the rack.

[0018] Also provided is an automatic steel bar bending production line, which comprises:

[0019] a clamping fixture configured to clamp or release a rebar;

[0020] a transfer member configured to place the steel bar toward the clamping fixture or remove the steel bar from the clamping fixture;

[0021] An alignment assembly, the alignment assembly comprising an alignment driver, an output end of the alignment driver being provided with a push plate, the alignment driver driving the push plate to move axially along the steel bar fixed by the clamping fixture;

[0022] The steel bar bending device as described above, two groups of the steel bar bending devices are respectively arranged on opposite sides of the clamping and fixing member to bend the axial ends of the steel bar fixed by the clamping and fixing member.

[0023] In some embodiments, it further includes a steel bar cutting mechanism and a steel bar conveying mechanism. The steel bar cutting mechanism is arranged upstream of the steel bar conveying mechanism, the steel bar bending device is arranged downstream of the steel bar conveying mechanism, and the transfer member can transfer the steel bar conveyed by the steel bar conveying mechanism onto the clamping and fixing member.

[0024] Advantages of the present utility model:

[0025] By providing the above-mentioned first monitoring member and second monitoring members, the first monitoring member is arranged on the driving shaft and can thus rotate with the driving shaft. That is to say, when the driving shaft drives the bending shaft sleeve to rotate around the bending die, the first monitoring member also rotates; and the two second monitoring members are arranged on the rotation path of the first monitoring member. When the first monitoring member faces the second monitoring members, the rotation of the driving shaft stops, and then the bending die stops rotating, thereby fixing the maximum rotation angle of the bending shaft sleeve, making the bending more accurate, ensuring the consistency and stability of the bending, and the bending angle can also be finely adjusted by finely adjusting the positions of the second monitoring members, improving the accuracy of the bending. Description of the drawings

[0026] Figure 1 is a schematic diagram of the steel bar bending device of the present utility model from one angle;

[0027] Figure 2 is a schematic diagram of the steel bar bending device of the present utility model from another angle;

[0028] Figure 3 is Figure 2 the enlarged view at A in

[0029] Figure 4 is a partial sectional view of the steel bar bending device of the present utility model showing the driving shaft;

[0030] Figure 5 is a schematic diagram of the steel bar bending device shown in the automatic steel bar bending production line of the present utility model;

[0031] Figure 6 is the overall schematic diagram of the automatic steel bar bending production line of the present utility model.

[0032] In the figure:

[0033] 100, steel bar bending device;

[0034] 1. Base; 2. Bending die; 3. Bending drive; 31. Rotation drive part; 32. Linear drive part; 33. Limit block; 4. Drive shaft; 5. Bending bushing; 6. Monitoring assembly; 61. First monitoring piece; 62. Second monitoring piece; 63. Third monitoring piece; 64. Fixed plate; 7. Mounting plate; 8. Bearing; 9. Support plate; 10. Frame; 101. Travel rail; 102. Rack; 103. Travel wheel; 104. Travel drive; 105. Gear;

[0035] 200. Clamping and fixing piece; 201. Tray; 202. Pressing drive; 203. Pressing plate;

[0036] 300. Transfer piece;

[0037] 400. Alignment assembly; 401. Alignment drive; 402. Pushing plate;

[0038] 500. Steel bar cutting mechanism;

[0039] 600. Steel bar conveying mechanism;

[0040] 700. Storage rack. Detailed implementation manners

[0041] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0042] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0044] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] As Figures 1 to 4 shown, the present utility model provides a steel bar bending device. The steel bar bending device 100 includes a base 1, a bending driving member 3 and a monitoring assembly 6. The base 1 has a mounting position for mounting a bending die 2; the output end of the bending driving member 3 is provided with a driving shaft 4, and a bending bushing 5 is arranged on the driving shaft 4. The bending driving member 3 can drive the bending bushing 5 to move along the axial direction of the driving shaft 4 and can drive the driving shaft 4 to rotate; the monitoring assembly 6 includes a first monitoring member 61 and two second monitoring members 62. The first monitoring member 61 and / or the second monitoring member 62 is connected to the bending driving member 3. The first monitoring member 61 is arranged on the driving shaft 4, and the two second monitoring members 62 are arranged on the rotation path of the first monitoring member 61 in a position-adjustable manner. When the first monitoring member 61 and the second monitoring member 62 are opposite to each other, the bending driving member 3 drives the driving shaft 4 to stop rotating.

[0046] By arranging the above-mentioned first monitoring member 61 and second monitoring members 62, the first monitoring member 61 is arranged on the driving shaft 4 and thus can rotate along with the driving shaft 4. That is to say, when the driving shaft 4 drives the bending bushing 5 to rotate around the bending die 2, the first monitoring member 61 also rotates; and the two second monitoring members 62 are arranged on the rotation path of the first monitoring member 61. When the first monitoring member 61 and the second monitoring member 62 are opposite to each other, the rotation driving shaft 4 stops rotating, and then the bending die 2 stops rotating, thereby fixing the maximum rotation angle of the bending bushing 5, making the bending more accurate, ensuring the consistency and stability of the bending, and the bending angle can be finely adjusted by finely adjusting the positions of the second monitoring members 62, improving the accuracy of the bending.

[0047] It should be noted here that the bending sleeve 5 is eccentrically arranged on the driving shaft 4 through the bending arm, and the rotation of the driving shaft 4 drives the bending sleeve 5 to rotate around the bending mold 2 to bend the steel bars on the bending mold 2.

[0048] like Figure 4 As shown, in some embodiments, the bending drive member 3 includes a rotary drive portion 31 and a linear drive portion 32, wherein the linear drive portion 32 and the rotary drive portion 31 are both connected to the drive shaft 4 and can drive the drive shaft 4 to perform linear motion along its axial direction and rotational motion around its own axial direction. Specifically, a limit groove is provided at one end of the drive shaft 4, and the cross-section of the limit groove is T-shaped. A limit block 33 is provided at the output end of the linear drive portion 32, and the notch of the limit groove is collinear with the driving direction of the linear drive portion 32, and the limit block 33 is set in the limit groove, so that the linear drive portion 32 can push the drive shaft 4 to perform linear motion along its axial direction; In addition, a limit key is provided on one of the output end of the rotary drive portion 31 and the outer wall of the drive shaft 4, and a keyway is provided on the other end to cooperate with the limit key. The keyway is provided along the axial direction of the drive shaft 4, so that when the drive shaft 4 moves linearly along the axial direction, the limit key moves into the keyway, and the rotary drive portion 31 can drive the drive shaft 4 to rotate through the cooperation of the keyway and the limit key, thereby achieving linear and rotational motion of the drive shaft 4. In the current embodiment, for ease of manufacturing, a keyway is provided on the outer wall of the drive shaft 4. For example, the linear drive unit 32 is a cylinder, and the rotary drive unit 31 is a combination of a motor and a reducer, with the limit key of the reducer being limited in the keyway on the drive shaft 4.

[0049] like Figure 1 and Figure 4 As shown, in some embodiments, in order to facilitate the installation of the bending mold 2, a mounting plate 7 is provided on the base 1, and a mounting hole is provided on one side of the mounting plate 7. The mounting hole is the above-mentioned mounting position, so that the bending mold 2 can be detachably mounted in the above-mentioned mounting hole through a fastener, and then different bending states can be formed by different bending molds 2. It should be noted here that the bending mold 2 is a prior art and will not be described in detail. The fasteners can be bolts or screws, etc. In addition, a bearing 8 is provided on the side of the mounting plate 7 away from the mounting hole. The end of the drive shaft 4 away from the limiting groove can approach or move away from the bearing 8 during the linear motion, and the end of the drive shaft 4 away from the limiting groove can be inserted into the bearing 8, so that the drive shaft 4 is supported by the bearing 8 during the bending operation, ensuring the stability of the bending and improving the bending accuracy.

[0050] like Figure 1As shown, in some embodiments, in order to further ensure the stability of bending and improve the bending accuracy, a height-adjustable supporting plate 9 is further provided on the mounting plate 7, so as to support the steel bar placed on the bending die 2 by means of the supporting plate 9. Specifically, a limiting hole extending in the height direction is provided on the mounting plate 7, and first convex teeth are provided on both side walls of the limiting hole in the height direction. The supporting plate 9 includes a supporting portion and a longitudinal mounting portion. Second convex teeth matching the first convex teeth are provided on both side edges of the mounting portion in the height direction. A fixing hole is further provided on the mounting portion, and the fixing hole is located between the second convex teeth on both sides. The supporting plate 9 is limited by staggering the second convex teeth and the first convex teeth, and the fixing bolt fixes the mounting plate 7 through the fixing hole and the limiting hole, so as to ensure the stability of the supporting plate 9 and further ensure the bending accuracy. It should be noted here that when adjusting the height of the supporting plate 9, the staggering height of the second convex teeth and the first convex teeth on the mounting portion can be adjusted to achieve the purpose.

[0051] In some embodiments, in order to facilitate the installation of the monitoring component 6, the monitoring component 6 further includes a fixing plate 64, and the fixing plate 64 is connected to the base 1; in the current embodiment, for the convenience of installation, the fixing plate 64 is arranged on the speed reducer. An arc-shaped placement hole is provided on the fixing plate 64, and the second monitoring member 62 is detachably arranged in the arc-shaped placement hole, and thus the position of the second monitoring member 62 in the arc-shaped placement hole can be adjusted in a detachable manner. In the current embodiment, the positions of the two second monitoring members 62 are respectively defined as the upper limit point and the lower limit point, and the two second monitoring members 62 are arranged at intervals, so as to limit the maximum rotation angle of the drive shaft 4.

[0052] As Figure 2 and Figure 3 shown, in some embodiments, the monitoring component 6 further includes a third monitoring member 63, and the third monitoring member 63 is arranged in the arc-shaped placement hole with adjustable position, and the third monitoring member 63 is located between the two second monitoring members 62. The position where the third monitoring member 63 is located is defined as the original point, that is, when there is no steel bar to be bent, the first monitoring member 61 moves to be opposite to the third monitoring member 63. In the current embodiment, the third monitoring member 63 is adjacent to any one of the second monitoring members 62, so that the bending bushing 5 stays near the upper limit point or near the lower limit point, and thus interference can be avoided when placing the steel bar on the bending die 2.

[0053] As Figure 3As shown, in the current embodiment, the second monitoring member 62 and the third monitoring member 63 include induction switches, which are fixed to the above-mentioned fixing plate 64 by bolts; the first monitoring member 61 includes an induction plate, which is fixed to the above-mentioned driving shaft 4, so as to rotate with the driving shaft 4, thereby limiting the maximum rotation angle, improving the bending accuracy, and ensuring bending consistency. It can be understood that in other embodiments, the first monitoring member 61 may include an induction switch, and the second monitoring member 62 and the third monitoring member 63 may include induction plates.

[0054] As Figure 1 and Figure 2 As shown, in some embodiments, the steel bar bending device 100 further includes a frame 10. A walking rail 101 is provided on the frame 10, and walking wheels 103 are provided on the base 1 so as to be able to move on the walking rail 101; further, a rack 102 in the same direction as the walking rail 101 is provided on the frame 10; in the current embodiment, the extending directions of the walking rail 101 and the rack 102 are the same as the extending direction of the steel bar when it is placed on the pallet 9 and the bending die 2.

[0055] A walking driving member 104 is further provided on the base 1. A gear 105 that meshes with the rack 102 is provided at the output end of the walking driving member 104. Thus, through the meshing of the gear 105 and the rack 102, the stability of the overall device is ensured during the steel bar bending process, and the bending accuracy is ensured. It should be noted here that the structures of the walking wheels 103, the walking rail 101, and the rack 102 are not limited.

[0056] As Figure 5 and Figure 6 As shown, the present utility model further provides an automatic steel bar bending production line, which includes a clamping and fixing member 200, a transfer member 300, an alignment assembly 400, and the above-mentioned steel bar bending device 100. The clamping and fixing member 200 is configured to clamp or release the steel bar; the transfer member 300 is configured to place the steel bar on the clamping and fixing member 200 or remove the steel bar from the clamping and fixing member 200; the alignment assembly 400 includes an alignment driving member 401, and a pushing plate 402 is provided at the output end of the alignment driving member 401. The alignment driving member 401 drives the pushing plate 402 to move along the axial direction of the steel bar fixed by the clamping and fixing member 200; two groups of steel bar bending devices 100 are respectively arranged on opposite sides of the clamping and fixing member 200 to bend the axial ends of the steel bar fixed by the clamping and fixing member 200.

[0057] With the above structure, the transfer member 300 can transfer the steel bar to be bent onto the clamping and fixing member 200. Subsequently, through the adjustment of the alignment assembly 400, the accuracy of the steel bar position is ensured. Then, the clamping and fixing member 200 clamps the above-mentioned steel bar. Subsequently, the two groups of steel bar bending devices 100 bend the two ends of the above-mentioned steel bar, realizing automatic steel bar bending, improving the bending accuracy of the steel bar, and ensuring bending consistency and stability.

[0058] It should be noted here that the transfer member 300 uses a manipulator, which is a prior art and will not be described in detail.

[0059] As Figure 5 shown, in some embodiments, the clamping and fixing member 200 includes a tray 201 and a pressing driving member 202. A pressing plate 203 is provided at the output end of the pressing driving member 202, and the pressing plate 203 presses the steel bar onto the above-mentioned tray 201. Exemplarily, the pressing driving member 202 can be but is not limited to a cylinder.

[0060] In some embodiments, the alignment driving member 401 and the clamping and fixing member 200 are arranged collinearly, and one of the steel bar bending devices 100 is arranged between the alignment driving member 401 and the clamping and fixing member 200. That is, when the steel bar is placed on the clamping and fixing member 200, the alignment driving member 401 drives the pushing plate 402 to move along the axial direction of the steel bar fixed by the clamping and fixing member 200 to push the above-mentioned steel bar, ensuring that the positions of both ends of the steel bar are consistent with the positions of the two steel bar bending devices 100 and ensuring the bending accuracy; after the above alignment is completed, the steel bar is fixed by the clamping and fixing member 200. Exemplarily, the alignment driving member 401 can be but is not limited to a cylinder.

[0061] As Figure 6 shown, in some embodiments, in order to further improve automation, it further includes a steel bar cutting mechanism 500 and a steel bar conveying mechanism 600. The steel bar cutting mechanism 500 is arranged upstream of the steel bar conveying mechanism 600, and the steel bar bending device 100 is arranged downstream of the steel bar conveying mechanism 600, so that the long steel bar can be cut into a suitable length by the steel bar cutting mechanism 500 and then conveyed to the steel bar bending device 100 through the steel bar conveying mechanism 600.

[0062] In the current embodiment, the steel bars conveyed by the steel bar conveying mechanism 600 can also be transferred to the clamping and fixing member 200 through the transfer member 300 to achieve automatic flow. It should be noted that the steel bar conveying mechanism 600 includes, but is not limited to, a ramp feeding mechanism, a stepped feeding mechanism, and a horizontal conveying mechanism. The ramp feeding mechanism carries and conveys multiple steel bars cut by the steel bar cutting mechanism 500. The stepped feeding mechanism is arranged downstream of the ramp feeding mechanism, and the horizontal conveying mechanism is arranged downstream of the stepped feeding mechanism. The stepped feeding mechanism separates the multiple steel bars conveyed by the ramp feeding mechanism and then conveys them horizontally by the horizontal conveying mechanism, facilitating the transfer of the steel bars by the transfer member 300. The steel bar cutting mechanism 500 and the steel bar conveying mechanism 600 are both prior arts and will not be elaborated here. Further, a storage rack 700 can also be included. The steel bars bent and formed by the steel bar bending device 100 can also be transferred to the above storage rack 700 for storage through the transfer member 300. It can be understood that, in order to further improve the efficiency, multiple transfer members 300 can be provided, corresponding to different transfer steps respectively.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Steel bar bending device, characterized in that, include: A base (1), wherein the base (1) has a mounting position, and the mounting position is used to mount the bending mold (2); A bending drive member (3), wherein the output end of the bending drive member (3) is provided with a driving shaft (4), a bending sleeve (5) is eccentrically provided on the driving shaft (4), and the bending drive member (3) is capable of driving the bending sleeve (5) to move along the axial direction of the driving shaft (4) and to drive the driving shaft (4) to rotate; A monitoring component (6), the monitoring component (6) comprising a first monitoring component (61) and a second monitoring component (62), the first monitoring component (61) and / or the second monitoring component (62) being connected to the bending drive component (3), the first monitoring component (61) being arranged on the drive shaft (4), the two second monitoring components (62) being adjustably arranged on the rotation path of the first monitoring component (61), and when the first monitoring component (61) and the second monitoring component (62) are opposite to each other, the bending drive component (3) stops driving the drive shaft (4) to rotate.

2. The steel bar bending device according to claim 1, wherein The monitoring assembly (6) further comprises a fixing plate (64), the fixing plate (64) being connected to the base (1), the fixing plate (64) being provided with an arc-shaped placement hole, and the second monitoring component (62) being detachably arranged in the arc-shaped placement hole.

3. The steel bar bending device according to claim 1, characterized in that, One of the first monitoring component (61) and the second monitoring component (62) includes an induction switch, and the other includes an induction plate.

4. The steel bar bending device according to claim 1, characterized in that, The monitoring assembly (6) further comprises a third monitoring component (63), wherein the position of the third monitoring component (63) is adjustable and arranged between the two second monitoring components (62).

5. The steel bar bending device according to claim 1, characterized in that The bending drive member (3) comprises a rotation drive part (31) and a linear drive part (32); a limit slot is provided at one end of the drive shaft (4); a limit block (33) is provided at the output end of the linear drive part (32); the limit block (33) is provided in the limit slot; the limit block (33) rotates in the limit slot; the linear drive part (32) pushes the drive shaft (4) to move along its axial direction through the limit block (33); a limit key is provided on one of the output end of the rotation drive part (31) and the outer wall of the drive shaft (4); and a key slot is provided on the other end that is slidably matched with the limit key; the key slot is provided along the axial direction of the drive shaft (4); and the rotation drive part (31) drives the drive shaft (4) to rotate.

6. The steel bar bending device according to claim 1, characterized in that A mounting plate (7) is provided on the base (1), the mounting position is provided on one side of the mounting plate (7), the bending drive member (3) is provided on the other side of the mounting plate (7), a bearing (8) is provided on the side of the mounting plate (7) facing away from the mounting position, and the drive shaft (4) can be rotatably inserted into the bearing (8).

7. The steel bar bending device according to claim 6, characterized in that, A height-adjustable supporting plate (9) is provided on the mounting plate (7).

8. The steel bar bending device according to claim 1, wherein, It further includes a frame (10), a traveling rail (101) and a rack (102) in the same direction as the traveling rail (101) are arranged on the frame (10), traveling wheels (103) are arranged on the base (1), and the traveling wheels (103) are movably arranged on the traveling rail (101); a traveling driving member (104) is arranged on the base (1), a gear (105) is arranged on the traveling driving member (104), and the gear (105) meshes with the rack (102).

9. Automatic steel bar bending production line, characterized in that, Comprising: A clamping and fixing member (200), which is configured to clamp or release the steel bar; A transfer member (300), which is configured to place the steel bar on the clamping and fixing member (200) or remove the steel bar from the clamping and fixing member (200); An alignment assembly (400), the alignment assembly (400) includes an alignment driving member (401), a pushing plate (402) is arranged at the output end of the alignment driving member (401), and the alignment driving member (401) drives the pushing plate (402) to move axially along the steel bar fixed by the clamping and fixing member (200); The steel bar bending device (100) according to any one of claims 1-8, two groups of the steel bar bending devices (100) are respectively arranged on opposite sides of the clamping and fixing member (200) to bend the axial ends of the steel bar fixed by the clamping and fixing member (200).

10. The automatic steel bar bending production line according to claim 9, characterized in that, It further includes a steel bar cutting mechanism (500) and a steel bar conveying mechanism (600), the steel bar cutting mechanism (500) is arranged upstream of the steel bar conveying mechanism (600), the steel bar bending device (100) is arranged downstream of the steel bar conveying mechanism (600), and the transfer member (300) can transfer the steel bar conveyed by the steel bar conveying mechanism (600) to the clamping and fixing member (200).

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