CN114833271A - Steel bar bending equipment - Google Patents

Abstract

The invention belongs to the technical field of steel bar processing, and discloses a steel bar bending device which comprises a rack, a clamping device arranged on the rack, and two first bending devices arranged on the rack in a sliding manner, wherein the two first bending devices are positioned on two sides of the clamping device, each first bending device comprises a fixed shaft, a bending die detachably arranged on the fixed shaft, and a first bending shaft capable of rotating relative to the bending die, the two bending dies are symmetrically arranged, each bending die is provided with a bending arc surface, and the first bending shaft is configured to bend a steel bar along the bending arc surface. According to the invention, the steel bar is bent along the bending arc surface of the corresponding bending die through the two first bending shafts, and finally the required large U-shaped steel bar can be bent, so that multiple devices are not required to be matched and processed step by step, the production efficiency is improved, and the production cost is reduced. And the first bending device can slide on the frame and is suitable for bending large U-shaped ribs of different types and sizes.

Description

Steel bar bending equipment

Technical Field

The invention relates to the technical field of steel bar processing, in particular to steel bar bending equipment.

Background

The numerical control steel bar bending equipment becomes necessary equipment for construction projects of steel bar processing and distribution centers, high-speed railways, expressways, bridges and tunnel lamps, and has the main function of bending a straight steel bar in a specific pattern.

The existing numerical control steel bar bending equipment does not have a special beam field large U-shaped rib bending function, and when a large U-shaped rib needs to be bent and formed, the bending can be completed only by matching multiple equipment in steps. In addition, the existing numerical control steel bar bending equipment can only bend steel bars in one shape, so that different numerical control steel bar bending equipment is required to be equipped when the steel bars in different shapes are bent, and the cost is higher.

Disclosure of Invention

The invention aims to provide a steel bar bending device which is not required to be completed by matching multiple devices in steps and is suitable for bending large U-shaped bars of different types and sizes.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a reinforcing bar bending apparatus, includes the frame, set up the clamping device in the frame, and slide set up in two first bending device in the frame, two first bending device is located clamping device's both sides, first bending device includes the fixed axle, demountable installation in fixed epaxial bending die and can for bending die pivoted first bending axis, two bending die symmetry sets up, just bending die has the bending arc face, first bending axis is configured to follow the reinforcing bar the bending arc face is crooked.

Preferably, the first bending device further comprises a first support, a first driving member, a first driving gear and a first driven gear, the first support is slidably disposed on the frame, the fixed shaft is fixed on the first support, the first driving member is mounted on the first support and has an output end fixedly connected to the first driving gear, the first driven gear is rotatably sleeved on the fixed shaft and is meshed with the first driving gear, and the first bending shaft is fixed on the first driven gear.

Preferably, the first bending device further comprises a first telescopic assembly, the first telescopic assembly comprises a first telescopic cylinder installed on the first support, a first telescopic rod driven by the first telescopic cylinder to stretch and retract, and a roller installed at one end of the first telescopic rod, an annular groove is formed in one end of the first driven gear, and the roller rolls in the annular groove.

Preferably, the first bending device further includes a first motor mounted on the first support, and a first gear driven by the first motor to rotate, the rack is provided with a rack along a sliding direction of the first support, and the first gear is meshed with the rack.

Preferably, the first support is provided with a plurality of first guide wheels, the rack is provided with a first slide rail, and the first guide wheels slide on the first slide rail.

Preferably, the steel bar bending device further comprises a second bending device, the second bending device comprises a second support arranged on the rack in a sliding manner, a bending main shaft and a second driving piece which are arranged on the second support, and a second bending shaft driven by the second driving piece to rotate, and the second bending shaft and the bending main shaft are matched to bend the steel bar.

Preferably, the second bending device further comprises a second telescopic assembly, the second telescopic assembly comprises a second telescopic cylinder installed on the second support, and the second telescopic cylinder is connected to the bending main shaft in a driving mode.

Preferably, the second bending device further includes a second driving gear and a second driven gear, the second driving gear is fixedly connected to the output end of the second driving member, and the second driven gear is rotatably sleeved on the bending spindle and engaged with the second driving gear.

Preferably, the second support is provided with a plurality of second guide wheels, the rack is provided with a second slide rail, and the second guide wheels slide on the second slide rail.

Preferably, the clamping device comprises a clamping support, a clamping cylinder and an upper clamping block which are arranged on the clamping support, and a lower clamping block which is fixedly connected to the output end of the clamping cylinder, wherein the clamping cylinder can drive the lower clamping block to move towards the upper clamping block so as to clamp the steel bar.

The invention has the beneficial effects that: through two first bending shafts with the reinforcing bar along the crooked cambered surface bending of the bending die who corresponds, can bend out required big U type muscle finally, it need not many equipment and divides step cooperation processing to accomplish, has improved production efficiency, has reduced manufacturing cost. And the first bending device can slide on the frame and is suitable for bending large U-shaped ribs of different types and sizes. In addition, above-mentioned bending die demountable installation is on the fixed axle, and it is after dismantling, and first bending apparatus can also crooked big U type muscle for its application range is wider.

Drawings

Fig. 1 is a schematic structural view of a reinforcing bar bending apparatus provided in the present invention;

FIG. 2 is an enlarged schematic view taken at A of FIG. 1 in accordance with the present invention;

fig. 3 is a schematic perspective view of a first reinforcing bar bending apparatus according to the present invention;

fig. 4 is a schematic view of the first bar bending apparatus hiding a view of the first housing according to the present invention;

fig. 5 is a schematic structural view of the first bar bending apparatus hiding another view of the first housing according to the present invention;

fig. 6 is a schematic perspective view of a second bar bending apparatus according to the present invention;

fig. 7 is a schematic structural view of a second steel bar bending apparatus according to the present invention hiding a second housing;

fig. 8 is a front view of a second bar bending apparatus according to the present invention hiding a second housing;

fig. 9 is a schematic view of a state in which a large U-shaped bar is bent by the bar bending apparatus according to the present invention;

fig. 10 is a schematic view showing a state in which the reinforcing bar bending apparatus according to the present invention bends the hooks at both ends of the reinforcing bar.

In the figure:

1. a frame; 11. a rack;

2. a clamping device; 21. clamping the support; 22. a clamping cylinder; 23. an upper clamping block; 24. a lower clamping block; 25. an upper clamping seat;

3. a first bending device; 31. a fixed shaft; 32. bending the die; 321. bending the cambered surface; 33. a first bending axis; 34. a first bracket; 341. a first guide wheel; 35. a first driving member; 36. a first drive gear; 37. a first driven gear; 371. an annular groove; 38. a first telescoping assembly; 381. a first telescopic cylinder; 382. a first telescopic rod; 383. a roller; 39. a first motor; 3a, a first gear; 3b, a first shell; 30. a first rebar support assembly; 301. a first support frame; 302. a first support base;

4. a second bending device; 41. a second bracket; 411. a second guide wheel; 42. bending the main shaft; 43. a second driving member; 44. a second bending axis; 45. a second telescopic cylinder; 46. a second driving gear; 47. a second driven gear; 48. a coupling structure; 49. a clamping assembly; 491. a first clamping cylinder; 492. a clamping plate; 4a, a second motor; 4b, a second gear; 4c, a second housing.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The invention provides a steel bar bending device which can bend steel bars into large U-shaped steel bars without the need of matching and processing multiple devices in steps, so that the production efficiency is improved, and the production cost is reduced.

Referring to fig. 1, the bending apparatus for reinforcing bars includes a frame 1, a clamping device 2, and a first bending device 3, wherein the clamping device 2 is disposed at a middle position of the frame 1 and is used for clamping the reinforcing bars to be bent. The number of the first bending devices 3 is two, the two first bending devices 3 are arranged on the rack 1 in a sliding mode, and the two first bending devices 3 are located on two sides of the clamping device 2 and used for bending the steel bars clamped by the clamping device 2 to form large U-shaped steel bars. In addition, the first bending device 3 slides on the frame 1, so that the steel bar bending equipment can be suitable for bending large U-shaped bars with different sizes.

Referring to fig. 2, the clamping device 2 includes a clamping support 21, a clamping cylinder 22 and an upper clamping block 23 mounted on the clamping support 21, and a lower clamping block 24 fixedly connected to an output end of the clamping cylinder 22, wherein the clamping cylinder 22 can drive the lower clamping block 24 to move toward the upper clamping block 23 to clamp the reinforcing steel bar. Alternatively, an upper clamping seat 25 may be fixedly mounted on the clamping support 21, the upper clamping seat 25 is in an inverted L-shaped structure, and the upper clamping block 23 is disposed below the top of the upper clamping seat 25 and opposite to the lower clamping block 24.

In this embodiment, the lower clamp block 24 may preferably be pinned to the output end of the clamp cylinder 22. When the clamping cylinder 22 drives the lower clamping block 24 to cooperate with the upper clamping block 23 to clamp the steel bar, the lower clamping block 24 can rotate to perform fine adjustment, so that the steel bar can be better clamped.

Referring to fig. 3-5, the first bending apparatus 3 includes a fixed shaft 31, a bending mold 32, a first bending shaft 33, a first bracket 34, a first driving member 35, a first driving gear 36, and a first driven gear 37, wherein:

the fixed shaft 31 is fixed to a first bracket 34, the first driving member 35 is further fixedly mounted on the first bracket 34, a first driving gear 36 is fixedly connected to an output end of the first driving member 35, the first driven gear 37 is meshed with the first driving gear 36, the first driven gear 37 is rotatably sleeved on the fixed shaft 31, and the first bending shaft 33 is eccentrically mounted on the first driven gear 37. The bending die 32 is attached to an end of the fixed shaft 31. The first driving gear 36 is driven to rotate by the first driving member 35, so that the first driven gear 37 can rotate along with the first driving gear 36, and further drive the first bending shaft 33 to rotate relative to the bending die 32, and in the process, the steel bar can be bent along the bending die 32 by the first bending shaft 33.

In this embodiment, the first driving member 35 is preferably a motor, and the motor drives the first driving gear 36 to rotate. The first bending shaft 33 is detachably mounted on the first driven gear 37, so that the first bending shaft 33 with different models and sizes can be replaced as required.

In this embodiment, the bending mold 32 is detachably mounted on the fixed shaft 31, and then different bending molds 32 can be selected as required to bend large U-shaped ribs of different sizes. The different sizes specifically refer to the radius of the arcs on two sides of the large U-shaped rib.

The bending die 32 has a bending arc 321, and the bending arc 321 is used for bending the reinforcing steel bar. Specifically, when the first bending shaft 33 bends the steel bar, the steel bar is bent along the bending arc surface 321, and at the moment, a large U-shaped bend is formed, and the steel bar is synchronously bent through the two first bending devices 3, so that the large U-shaped steel bar can be formed. It should be noted that the two bending dies 32 are symmetrically arranged, that is, the bending directions of the bending arc surfaces 321 of the two bending dies 32 are opposite, so that the bending of the two bending arcs of the large U-shaped rib can be realized.

In this embodiment, the first support 34 is preferably slidably disposed on the frame 1, so that the first bending device 3 can be slidably disposed along the frame 1 to adjust the bending position of the reinforcing bar according to different requirements.

The first driven gear 37 can move along the axial direction of the fixed shaft 31, and for example, as shown in fig. 4 and 5, the first bending apparatus 3 further includes a first telescopic assembly 38, the first telescopic assembly 38 includes a first telescopic cylinder 381 mounted on the first support 34, a first telescopic rod 382 driven by the first telescopic cylinder 381 to telescope, and a roller 383 mounted at one end of the first telescopic rod 382, an annular groove is formed at one end of the first driven gear 37, and the roller 383 rolls in the annular groove. The expansion and contraction direction of the first expansion and contraction cylinder 381 is the axial direction of the fixed shaft 31. The first telescopic cylinder 381 drives the first telescopic rod 382 and the roller 383 to move, and the roller 383 is arranged in the annular groove, so that the first driven gear 37 can be driven to move along the axial direction of the fixed shaft 31. The first bending shaft 33 mounted thereon can be caused to axially extend or retract by the movement of the first driven gear 37. When the big U-shaped muscle that needs to be crooked, first driven gear 37 stretches out in order to drive first crooked axle 33 and stretch out, and first crooked axle 33 is crooked with bending die 32 cooperation to the reinforcing bar. When the large U-shaped reinforcing bar is not required to be bent, the first driven gear 37 drives the first bending shaft 33 to retract, and the first bending shaft 33 is matched with the fixed shaft 31 to bend the reinforcing bar, and at the moment, the bending die 32 does not interfere with the bending operation of the first bending shaft 33. And the retraction of the first bending shaft 33 can also perform bidirectional bending (i.e. clockwise bending and counterclockwise bending) on the steel bars through the first bending shaft 33, thereby improving the application range of the first bending shaft 33.

It should be noted that, in order to ensure that the first driven gear 37 can still be engaged with the first driving gear 36 when moving axially to extend or retract, the axial length of the first driving gear 36 in this embodiment is greater than the axial length of the first driven gear 37.

Preferably, the first bending apparatus 3 further comprises a first reinforcing bar supporting member 30, the first reinforcing bar supporting member 30 comprises a first supporting frame 301 fixed to the first bracket 34, a first supporting seat 302 adjustably mounted to the first supporting frame 301 in a height direction, and a top end surface of the first supporting seat 302 is configured to support the reinforcing bar. Optionally, the first supporting seat 302 is provided with a long hole, the first supporting frame 301 is provided with a threaded hole, the bolt penetrates through the long hole and can be connected to the threaded hole in a threaded manner, the first supporting seat 302 can be adjusted in the height direction through the long hole, and then the supporting of reinforcing steel bars with different diameters can be met.

It should be pointed out that above-mentioned first reinforcing bar supporting component 30 cooperatees with clamping device 2, realization that can be effective is to the support and the clamp of reinforcing bar, that is to say, when the crooked reinforcing bar, at first can place the reinforcing bar on first reinforcing bar supporting component 30, is pressed from both sides the reinforcing bar by clamping device 2 afterwards, can realize the support and the clamp of reinforcing bar this moment, also provides the basis of stable support for the bending of follow-up first bending apparatus 3 for the bending forming's reinforcing bar quality is better, and the yields is higher. In this embodiment, through the adjustment of the first supporting seat 302 in the height direction, the clamping surface of the lower clamping block 24 of the clamping device 2 can be flush with the supporting surface (i.e., the top end surface) of the first supporting seat 302, so that the whole reinforcing steel bar is in a horizontal state, and a good basic condition is provided for the subsequent bending operation.

In this embodiment, the first bending apparatus 3 further includes a first motor 39 mounted on the first bracket 34, and a first gear 3a driven by the first motor 39 to rotate, the frame 1 is provided with a rack 11 along the sliding direction of the first bracket 34, and the first gear 3a is engaged with the rack 11. The first motor 39 drives the first gear 3a to rotate, and then the first gear 3a is engaged with the rack 11, so that the first bending device 3 can slide on the rack 1. Preferably, the first motor 39 may be a reduction motor.

Preferably, a plurality of first guiding wheels 341 are disposed on the first support 34, a first sliding rail (not shown in the figure) is disposed on the frame 1, and the first guiding wheels 341 slide on the first sliding rail to guide and stably support the movement of the first bending apparatus 3.

It should be noted that, in this embodiment, the first housing 3b is further installed on the first bracket 34, and the first driving member 35, the first driving gear 36, the first driven gear 37, the first telescopic assembly 38, the first motor 39, the first gear 3a and other components are covered by the first housing 3b, so as to avoid dust and the like from affecting the first driving member, prolong the service life of the first driving member, and improve the safety performance of the first driving member.

In this embodiment, optionally, as shown in fig. 1, the above-mentioned steel bar bending apparatus further includes two sets of second bending devices 4, where the two sets of second bending devices 4 are disposed, the two sets of first bending devices 3 are disposed between the two sets of second bending devices 4, and the second bending devices 4 can bend steel bars at different angles and can cooperate with the first bending devices 3 to bend and form a large U-shaped steel bar with a pull hook at an end portion.

Referring to fig. 6-8, the second bending apparatus 4 includes a second bracket 41, a bending main shaft 42, a second driving member 43, and a second bending shaft 44, wherein the second bracket 41 is alternatively disposed on the frame 1, and the position of the second bending apparatus 4 on the frame 1 can be adjusted to meet the bending requirements of the steel bars with different lengths. The bending main shaft 42 is mounted on the second bracket 41, the second driving member 43 is mounted on the second bracket 41 and can drive the second bending shaft 44 to rotate, and the second bending shaft 44 can cooperate with the bending main shaft 42 to bend the steel bars when rotating.

In this embodiment, a second driving gear 46 is fixed to an output end of the second driving member 43, and a second driven gear 47 is rotatably disposed on the bending main shaft 42, wherein the second driven gear 47 is engaged with the second driving gear 46. The coupling structure 48 is further rotatably sleeved on the bending main shaft 42, the coupling structure 48 is fixedly connected to the second driven gear 47 and can be driven by the second driven gear 47 to rotate, the second bending shaft 44 is eccentrically and fixedly connected to the coupling structure 48, and therefore when the coupling structure 48 rotates, the second bending shaft 44 can be driven to rotate around the bending main shaft 42 and is matched with the bending main shaft 42 to bend the steel bars. The second driving member 43 is preferably a motor for driving the second driving gear 46 to rotate.

In this embodiment, a bearing may be provided on the bending main shaft 42 to realize the rotation of the second driven gear 47 and the coupling structure 48 with respect to the bending main shaft 42.

As a preferable technical solution, the second bending apparatus 4 further comprises a second telescopic assembly, the second telescopic assembly comprises a second telescopic cylinder 45 installed on the second bracket 41, and the end of the second telescopic cylinder 45 is connected with a connecting member, and the connecting member is connected to the bending main shaft 42. The second telescopic cylinder 45 can drive the bending main shaft 42 to expand and contract in the axial direction. Through this flexible subassembly of second, when the crooked reinforcing bar, at first flexible cylinder 45 of second drives crooked main shaft 42 and withdraws, and the reinforcing bar is carried to second bending apparatus 4 afterwards and is gone out, and later the flexible cylinder 45 of second drives crooked main shaft 42 and stretches out, is rotated by second driving piece 43 drive second crooked axle 44 afterwards, bends the reinforcing bar.

In this embodiment, the second bending apparatus 4 further comprises a clamping assembly 49, and the clamping assembly 49 comprises a first clamping cylinder 491 vertically mounted on the second support 41 and a clamping plate 492 moved by the first clamping cylinder 491. When the steel bar is conveyed to the second bending device 4, the clamping plate 492 is moved to the bending main shaft 42 by the first clamping cylinder 491, the steel bar is clamped by the clamping plate 492 and the bending main shaft 42, and then the second bending shaft 44 is rotated to bend the steel bar.

In this embodiment, the second bending apparatus 4 further includes a second motor 4a mounted on the second bracket 41, and a second gear 4b driven by the second motor 4a to rotate, wherein the second gear 4b is engaged with the rack 11 on the frame 1. The second motor 4a drives the second gear 4b to rotate, and the second gear 4b is engaged with the rack 11, so that the second bending device 4 can slide on the rack 1. Preferably, the second motor 4a may be a reduction motor.

Preferably, a plurality of second guide wheels 411 are disposed on the second bracket 41, a second slide rail (not shown in the figure) is disposed on the frame 1, and the second guide wheels 411 slide on the second slide rail, so as to guide and stably support the movement of the second bending device 4.

It should be noted that, in this embodiment, the second housing 4c is further installed on the second bracket 41, and the second driving element 43, the second driving gear 46, the second driven gear 47, the second telescopic assembly, the second motor 4a, the second gear 4b and other components are covered by the second housing 4c, so as to avoid the influence of dust and the like on the second driving element, improve the service life of the second driving element, and improve the safety performance.

When the above-mentioned steel bar bending apparatus of the present invention is used, if a large U-shaped steel bar with a hook is to be bent, as shown in fig. 9, a straight steel bar is first placed on the first steel bar supporting member 30 of the first bending device 3, and the steel bar is clamped by the clamping device 2, and the second bending device 4 makes the steel bar clamped by the clamping plate 492 and the bending main shaft 42 through the clamping member 49. Then, the two ends of the reinforcing steel bar are bent by the second bending shafts 44 of the two second bending devices 4 to form the drag hook with the required angle and radian. The clamp plate 492 then releases the clamp on the bar and the bending spindle 42 of the second bending device 4 is retracted without the second bending device 4 interfering with the subsequent bending of the bar. Then, the steel bar is bent by bending the two sides of the large U-shaped bar through the first bending shaft 33 of the first bending device 3, and the required large U-shaped bar with the draw hook can be formed.

When only simple bending (such as two-end bending draw hook) is needed to be performed on the steel bar, a combination of the first bending device 3 and the second bending device 4 can be selected to perform bending according to needs (as shown in fig. 10), or two first bending devices 3 can be used to perform bending after the bending die 32 is disassembled.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The reinforcing steel bar bending device is characterized by comprising a rack (1), a clamping device (2) arranged on the rack (1), and two first bending devices (3) arranged on the rack (1) in a sliding mode, wherein the two first bending devices (3) are located on two sides of the clamping device (2), the first bending devices (3) comprise fixed shafts (31), bending molds (32) detachably mounted on the fixed shafts (31) and first bending shafts (33) capable of rotating relative to the bending molds (32), the two bending molds (32) are symmetrically arranged, the bending molds (32) are provided with bending arc faces (321), and the first bending shafts (33) are configured to bend reinforcing steel bars along the bending arc faces (321).

2. The steel bar bending apparatus according to claim 1, wherein the first bending device (3) further comprises a first bracket (34), a first driving member (35), a first driving gear (36) and a first driven gear (37), the first bracket (34) is slidably disposed on the frame (1), the fixed shaft (31) is fixed on the first bracket (34), the first driving member (35) is mounted on the first bracket (34) and has an output end fixedly connected to the first driving gear (36), the first driven gear (37) is rotatably sleeved on the fixed shaft (31) and is engaged with the first driving gear (36), and the first bending shaft (33) is fixed on the first driven gear (37).

3. The steel bar bending apparatus according to claim 2, wherein the first bending device (3) further comprises a first telescopic assembly (38), the first telescopic assembly (38) comprises a first telescopic cylinder (381) installed on the first bracket (34), a first telescopic rod (382) driven to be telescopic by the first telescopic cylinder (381), and a roller (383) installed at one end of the first telescopic rod (382), one end of the first driven gear (37) is provided with an annular groove (371), and the roller (383) rolls in the annular groove (371).

4. A bending apparatus according to claim 3, wherein the first bending device (3) further comprises a first motor (39) mounted on the first bracket (34), and a first gear (3a) driven by the first motor (39) to rotate, the frame (1) is provided with a rack (11) along the sliding direction of the first bracket (34), and the first gear (3a) is engaged with the rack (11).

5. The rebar bending device according to claim 4, wherein a plurality of first guide wheels (341) are arranged on the first support (34), a first sliding rail is arranged on the frame (1), and the first guide wheels (341) slide on the first sliding rail.

6. A steel bar bending apparatus according to any one of claims 1 to 5, further comprising a second bending device (4), wherein the second bending device (4) comprises a second bracket (41) slidably disposed on the frame (1), a bending main shaft (42) mounted on the second bracket (41) and a second driving member (43), and a second bending shaft (44) driven by the second driving member (43) to rotate, wherein the second bending shaft (44) cooperates with the bending main shaft (42) to bend the steel bar.

7. A bar bending apparatus according to claim 6, wherein the second bending device (4) further comprises a second telescopic assembly comprising a second telescopic cylinder (45) mounted on the second bracket (41), the second telescopic cylinder (45) being drivingly connected to the bending spindle (42).

8. The steel bar bending apparatus according to claim 7, wherein the second bending device (4) further comprises a second driving gear (46) and a second driven gear (47), the second driving gear (46) is fixedly connected to an output end of the second driving member (43), and the second driven gear (47) is rotatably sleeved on the bending main shaft (42) and meshed with the second driving gear (46).

9. A bending device according to claim 8, wherein the second frame (41) is provided with a plurality of second guide wheels (411), the frame (1) is provided with a second sliding track, and the second guide wheels (411) slide on the second sliding track.

10. A device for bending reinforcing bars according to any one of claims 1 to 5, wherein said clamping means (2) comprise a clamping support (21), a clamping cylinder (22) and an upper clamping block (23) mounted on said clamping support (21), and a lower clamping block (24) secured to the output of said clamping cylinder (22), said clamping cylinder (22) being capable of driving said lower clamping block (24) towards said upper clamping block (23) to clamp said reinforcing bars.

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