Steel bar positioning assembly and bending machine

Abstract

The utility model discloses a reinforcing steel bar positioning assembly and a bending machine, and relates to building material processing equipment, and the technical scheme is as follows: the reinforcing steel bar positioning assembly is used for the bending machine, the bending machine comprises a workbench, a turntable is arranged on the workbench, and a central pin shaft and a bending pin shaft are arranged on the turntable; the positioning assembly comprises a positioning base and a positioning pin shaft, the positioning base is arranged on the workbench, and at least two positioning slots are formed in the positioning base; a positioning pin shaft is inserted into the positioning slot; the positioning pin shafts comprise a first positioning pin shaft and a second positioning pin shaft; the first positioning pin shaft and the second positioning pin shaft are respectively inserted into the positioning slots; a baffle is arranged on the first positioning pin shaft, and a supporting groove is formed in the back face of the baffle. A supporting rod is arranged on the second positioning pin shaft; the supporting rod is matched with the supporting groove to prevent the baffle from rotating relative to the second positioning pin shaft. The purpose of improving the bending quality is achieved.

Description

Technical Field

[0001] The utility model relates to a building material processing device, more specifically, it relates to a steel bar assembly and a bending machine. Background Art

[0002] During the construction process, a large amount of steel bars are needed to build the skeleton of concrete components. In the process of using steel bars to build the skeleton, the steel bars need to be bent, and the maximum bending amplitude can make the bent part ring-shaped. The connection between the steel bars is made stronger by bending the steel bars. The steel bar bending machine includes a positioning assembly, a bending pin, and a center pin; the bending pin rotates along the center pin, and the positioning assembly is used to prevent the steel bar from rotating around the center pin, and the bending of the steel bar is achieved with the cooperation of the three. Patent No. CN201920295320.2 discloses a steel bar bending machine, in which the support pin used for positioning is far away from the bending pin. On the one hand, during the feeding process, the steel bars between the support pin and the bending pin are deformed, which will cause the bending to be incomplete; on the other hand, Figure 2 As shown, when the steel bar to be bent is itself bent, and the bending point will pass over the support pin during the bending process of the steel bar, there will be problems of incomplete bending or excessive bending. Utility Model Content

[0003] In the first aspect, in order to solve the problems mentioned in the background technology, the purpose of the utility model is to provide a steel bar positioning assembly.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a steel bar positioning assembly, the positioning assembly is used for a bending machine, the bending machine includes a workbench, a turntable is arranged on the workbench, and a center pin and a bending pin are arranged on the turntable; the characteristic is that: the positioning assembly includes a positioning base and a positioning pin, the positioning base is arranged on the workbench, and at least two positioning slots are arranged on the positioning base; the positioning slot is used to insert the positioning pin;

[0005] The positioning pin shaft includes a first positioning pin shaft and a second positioning pin shaft, and the first positioning pin shaft and the second positioning pin shaft are respectively inserted into the positioning slot; a baffle is arranged on the first positioning pin shaft, and a supporting groove is arranged on the back side of the baffle shaft; a supporting rod is arranged on the second positioning pin shaft; one end of the support rod is connected to the second positioning pin shaft, and the other end is arranged with a supporting part; the supporting part cooperates with the supporting groove to prevent the baffle shaft from rotating relative to the second positioning pin shaft; the baffle plate can extend to the top of the turntable, and the distance from the bending pin shaft is 0 to 5 cm; the baffle plate and the bending pin shaft are both located on the outside of the bending arc of the steel bar to be bent.

[0006] During the bending process of the steel bar, one end of the feed tends to move in the direction of rotation of the turntable, and this tendency can be avoided by the positioning pin. During the bending process, the center pin and the bending pin drive the steel bar to move, and the contact point between the steel bar and the positioning pin is also constantly changing. In the prior art, the positioning pin is too far away from the center pin and the bending pin. When the steel bar to be bent is itself at a certain bend, when the bending point passes through the positioning pin, the force direction of the steel bar and the positioning pin will change, and the feeding direction will also change accordingly. In this case, the steel bar will not be bent in place. In this technical solution, the positioning seat, the support rod, and the baffle form a stable triangle. The end of the baffle is located above the turntable. During the feeding process, the front of the baffle can support the steel bar to prevent the steel bar from deformation. On the other hand, when the steel bar itself is bent, the end of the baffle plays a major supporting role. Since the baffle is closer to the center pin and the bending pin, the possibility of deformation is greatly reduced, reducing the possibility of bending in place.

[0007] Furthermore, a sleeve is provided on the first positioning pin shaft, and a positioning plate is provided on the sleeve; the baffle is provided on the positioning plate; and the positioning plate is slidably connected to the baffle.

[0008] If there are bulges on the rebar or bends on the steel bar, there is a possibility that the baffle plate will get stuck during the feeding process, resulting in the steel bar being unable to be pushed forward when bent, and the steel bar falling off. The positioning plate and the baffle plate are connected in a sliding manner, which can play a role in assisting feeding. That is, when the steel bar and the baffle plate are stuck, the baffle plate and the steel bar move forward together to avoid the problem of the steel bar falling off.

[0009] Furthermore, a transverse slide groove is arranged on the positioning plate; the cross-section of the slide groove is wide at the bottom and narrow at the top; a slider adapted to the slide groove is arranged on the baffle plate, and the slider can drive the baffle plate to slide in the slide groove; a pin hole is arranged in the slide groove; a pin inserted into the pin hole can prevent the slider from sliding out.

[0010] The above solution can prevent the slider from sliding out on the one hand; on the other hand, since the baffle is in contact with the steel bar and is easily worn, the above solution can facilitate replacement.

[0011] Furthermore, a fin is provided on the back of the positioning plate, and the fin and the positioning plate form a V-shaped support groove; a transversely penetrating threaded hole is provided on the second positioning pin shaft; an external thread matching the threaded hole is provided on the support rod; the support rod can be extended or retracted by rotating the support rod; the end of the support part is flat and matches the V-shaped support groove.

[0012] By adjusting the first and second positioning pins into which the positioning pin holes are inserted, and adjusting the length of the support rod, the direction of the baffle and the position of the end of the baffle above the turntable can be adjusted. The assembly can achieve flexible and diverse feeding directions. The flat front end can better fit the V-shaped support groove.

[0013] In the second aspect, the utility model provides a bending machine, which includes a workbench, a turntable is arranged in the middle of the workbench, a center slot is arranged in the center of the turntable, and a plurality of bending slots are also arranged on the turntable; the center slot is used to place the center pin, and the bending slot is used to place the bending pin; positioning bases are respectively arranged on both sides of the turntable, and at least two positioning slots are arranged on the positioning base; the positioning slots are used to insert the positioning pins; the positioning pins include a first positioning pin and a second positioning pin, a baffle is arranged on the first positioning pin, and a support groove is arranged on the back of the baffle; a support rod is arranged on the second positioning pin; one end of the support rod is connected to the second positioning pin, and the other end is arranged with a support part; the support part cooperates with the support groove to prevent the baffle from rotating relative to the second positioning pin; the baffle is close to the bending pin; the baffle and the bending pin are both located on the outside of the bending arc of the steel bar to be bent.

[0014] During the feeding process, the front side of the baffle can support the steel bars and prevent them from deformation. On the other hand, when the steel bars themselves are bent, the end of the baffle plays a major supporting role. Since the baffle is closer to the center pin and the bending pin, the possibility of deformation is greatly reduced, which reduces the possibility of inadequate bending.

[0015] Furthermore, a bracket is arranged on the outside of the positioning base; the bracket includes a mounting frame and a cross bar, and the mounting frame is arranged on both sides of the cross bar; the cross bar is cylindrical; and the cross bar can rotate on the mounting frame.

[0016] The support for the steel bars can be achieved through the brackets, and the cylindrical shape of the crossbar and the rotation of the crossbar can reduce friction.

[0017] Furthermore, the tops of the crossbar, the mounting base and the turntable are on the same horizontal plane, and the horizontal plane is parallel to the workbench.

[0018] The three are placed on the same horizontal plane, which can keep the steel bars fed horizontally, avoid tilting and warping, and reduce the bending quality.

[0019] Furthermore, it also includes a sleeve, which can be sleeved on the central pin and the bending pin to change the diameter of the central pin and the bending pin.

[0020] By using sleeves of different diameters, bending with different arc lengths can be achieved.

[0021] In summary, the utility model has the following beneficial effects: the effect of improving the bending quality of steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a stereogram of an embodiment;

[0023] Figure 2 1. It is a top view of the embodiment

[0024] Figure 3 It is a turntable diagram

[0025] Figure 4 Center pin cross-section view

[0026] Figure 5 This is the schematic diagram of the first positioning pin

[0027] Figure 6 This is the schematic diagram of the second positioning pin

[0028] In the figure: 1, cabinet; 11, control panel; 2, workbench; 3, turntable; 31, center pin; 32, bent pin; 33, bent slot; 34, center slot; 35, sleeve; 36, vent; 4, positioning base; 41, positioning slot; 5, bracket; 51, mounting frame; 52, cross bar; 61, second positioning pin; 62, support rod; 621, support part; 71, first positioning pin; 72, positioning plate; 721, fin; 722, slide groove; 723, pin; 73, baffle. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The "connection" is not limited to fixed connection or movable connection. The specific connection method should be determined based on the specific technical problem to be solved.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Example:

[0034] A steel bar bending machine, comprising a workbench 2 and a steel bar positioning assembly. The workbench 2 is arranged on the top of a cabinet 1, and a driving motor, a reduction mechanism and a control device are arranged in the cabinet 1. A turntable 3 is arranged on the workbench 2. The driving electrode drives the turntable 3 to rotate through the reduction mechanism. The control device is used to control the amplitude and direction of rotation of the turntable 3. A control panel 11 is arranged on the cabinet 1, and the control panel 11 realizes the input to the control device. A foot pedal is also provided, and the foot pedal realizes the start and stop of the rotation of the turntable 3 and controls the rotation direction through the control device. Controlling the rotation of the turntable 3 by the foot pedal is more convenient for the user. Wheels are arranged under the cabinet 1, and the wheels can facilitate the movement of the bending machine on the construction site.

[0035] The workbench 2 is provided with a turntable 3, a steel bar positioning assembly, and a bracket 5. The turntable 3 is arranged in the middle of the workbench 2; the positioning assembly includes a positioning base 4 and a positioning pin; the positioning base 4 is arranged beside the turntable 3. In a possible embodiment, the positioning bases 4 are arranged on both sides of the turntable 3, and the bracket 5 is arranged parallel to the positioning base 4.

[0036] The turntable 3 is provided with a center pin 31 and a bending pin 32, and the positioning base 4 is provided with a positioning pin. The center pin 31 is provided at the center of the turntable 3; driven by the turntable 3, the bending pin 32 can rotate around the center pin 31. When in use, the bending pin 32 and the center pin 31 interact with each other to clamp the steel bar head, driving the steel bar head to rotate around the center pin 31; the positioning pin is located outside the bending arc of the steel bar, which can prevent the steel bar from rotating along the center pin 31 as a whole, and does not prevent the steel bar from moving forward, so that the steel bar can be fed forward; the steel bar is bent under the joint action of the positioning pin, the center pin 31, and the bending pin 32.

[0037] In this embodiment, a central slot 34 is provided at the center of the turntable 3, and the central slot 34 is used to place the central pin 31; a plurality of curved slots 33 are distributed around the central slot 34, and the curved slots 33 are used to place the curved pin 32. In a possible embodiment, there are eight curved slots 33, which are distributed in a square shape with the central slot 34 as the center. Through the above scheme, the bending direction can be flexibly selected, and steel bars of different diameters can be matched. A sleeve 35 is also included, and the sleeve 35 can be sleeved on the central pin 31 and the curved pin 32 to change the diameter of the central pin 31 and the curved pin 32; preferably, a plurality of sleeves 35 of different diameters are included. By inserting different curved slots 33, the distance between the central pin 31 and the curved pin 32 is changed; by inserting the sleeve 35, the diameter of the central pin 31 and the curved pin 32 is changed; the cooperation of the two can more flexibly set the distance between the central pin 31 and the curved pin 32, and more flexibly match steel bars of different diameters.

[0038] In a possible embodiment, the central pin 31 and the curved pin are provided with vent holes 36, which are used to remove air in the slot when the central pin and the curved pin are placed, so as to facilitate insertion. The vent holes 36 are provided along the central axis in the middle of the central pin or the curved pin. Similarly, in order to facilitate insertion of the central pin or the curved pin, an air groove is provided on the curved slot 33 or the central slot 34, and the air groove is provided along the side wall of the curved slot 33 or the central slot 34.

[0039] In this embodiment, at least two positioning slots 41 are provided on the positioning base 4; the positioning slots 41 are used to insert the positioning pins; the positioning pins include a first positioning pin 71 and a second positioning pin 61, and the first positioning pin 71 and the second positioning pin 61 are respectively inserted into the positioning slots 41; a baffle 73 is provided on the first positioning pin 71, and a support groove is provided on the back of the baffle 73; a support rod 62 is provided on the second positioning pin 61; one end of the support rod 62 is connected to the second positioning pin 61, and the other end is provided with a support portion 621; the support portion 621 cooperates with the support groove to prevent the baffle 73 from rotating toward the second positioning pin 61; the baffle 73 can extend to the top of the turntable 3; the baffle 73 and the bending pin 32 are both located outside the bending arc of the steel bar to be bent. A sleeve 35 is provided on the first positioning pin 71, and a positioning plate 72 is provided on the sleeve 35; the baffle 73 is provided on the positioning plate 72; the positioning plate 72 is slidably connected to the baffle 73. The positioning plate 72 is provided with a transverse slide groove 722; the cross section of the slide groove 722 is wide at the bottom and narrow at the top; the baffle 73 is provided with a slider adapted to the slide groove 722, and the slider can drive the baffle 73 to slide in the slide groove 722; a pin hole is provided in the slide groove 722; the pin 723 is inserted into the pin hole to prevent the slider from sliding out. The back of the positioning plate 72 is provided with a fin 721, and the fin 721 and the positioning plate 72 form a V-shaped support groove; the second positioning pin shaft 61 is provided with a transversely penetrating threaded hole; the support rod 62 is provided with an external thread matched with the threaded hole; rotating the support rod 62 can make the support rod 62 extend or retract; the end of the support portion 621 is flat and matched with the V-shaped support groove. The end of the baffle is chamfered or inclined, which can provide support while reducing damage to the surface of the steel bar.

[0040] In this embodiment, six positioning slots 41 are provided on the positioning base 4. The first positioning pin 71 and the second positioning pin 61 are inserted into different positioning slots 41 to achieve feeding at different angles and adjust the distance between the baffle 73 and the bending pin 32.

[0041] A bracket 5 is also provided outside the positioning base 4; the bracket 5 includes a mounting frame 51 and a crossbar 52, the mounting frame 51 is provided on both sides of the crossbar 52; the crossbar 52 is cylindrical; the crossbar 52 can rotate on the mounting frame 51. The tops of the crossbar 52, the mounting seat and the turntable 3 are in the same horizontal plane, and the horizontal plane is parallel to the workbench 2. The bracket 5 is used for auxiliary support and auxiliary feeding.

[0042] The method of use is as follows: select a sleeve of appropriate diameter according to the diameter of the steel bar. Determine the appropriate feeding angle according to the shape of the bend, the amplitude of the bend, and the shape of one end of the feed; select a suitable bending slot 33 on the turntable 3; insert the center pin 31 and the bending pin 32 into the center slot 34 and the bending slot 33; select a suitable positioning slot 41 on the positioning base 4, and insert the first positioning pin and the second positioning pin; selecting different slots can adjust the position of the baffle 73 above the turntable 3, and can also adjust the feeding angle. The baffle 73 serves as an auxiliary support. The sliding connection between the positioning plate 72 and the baffle 73 can make the feeding smoother. The bending pin and the center pin clamp the steel bar during bending, and the steel bar head rotates around the center pin. The end of the baffle blocks the rotation of the tail steel bar, thereby achieving the bending of the steel bar head.

[0043] Compared with the prior art, this solution achieves the function of adjusting the feeding angle and auxiliary support through the cooperation of the first positioning pin 71, the baffle 73, the second positioning pin 61, the support rod 62 and different positioning slots 41. The end of the baffle 73 is close to the bending pin 32, which is used to support the steel bar, reducing the distance from the support point to the bending point, reducing the possibility of non-steel deformation, and solving the problem of steel bar bending failure in the prior art; overall, the bending quality of the steel bar is improved.

[0044] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A steel bar positioning assembly, the positioning assembly is used for a bending machine, the bending machine comprises a workbench, a turntable is arranged on the workbench, and a center pin and a bending pin are arranged on the turntable; wherein: The positioning assembly comprises a positioning base and a positioning pin shaft. The positioning base is arranged on a workbench and is provided with at least two positioning slots. The positioning slots are used to insert the positioning pin shaft. The positioning pin shaft includes a first positioning pin shaft and a second positioning pin shaft, and the first positioning pin shaft and the second positioning pin shaft are respectively inserted into the positioning slot; a baffle is arranged on the first positioning pin shaft, and a supporting groove is arranged on the back side of the baffle shaft; a supporting rod is arranged on the second positioning pin shaft; one end of the supporting rod is connected to the second positioning pin shaft, and the other end is arranged with a supporting part; the supporting part cooperates with the supporting groove to prevent the baffle shaft from rotating relative to the second positioning pin shaft; the baffle plate can extend to above the turntable; the baffle plate and the bending pin shaft are both located on the outside of the bending arc of the steel bar to be bent.

2. A steel bar positioning assembly according to claim 1, characterized in that: A sleeve is arranged on the first positioning pin shaft, and a positioning plate is arranged on the sleeve; a baffle is arranged on the positioning plate; and the positioning plate is slidably connected with the baffle.

3. A steel bar positioning assembly according to claim 2, characterized in that: The positioning plate is provided with a transverse slide groove; the cross-section of the slide groove is wide at the bottom and narrow at the top; a slider adapted to the slide groove is provided on the baffle plate, and the slider can drive the baffle plate to slide in the slide groove; a pin hole is provided in the slide groove; a pin inserted into the pin hole can prevent the slider from sliding out.

4. A steel bar positioning assembly according to claim 3, characterized in that: A fin is provided on the back of the positioning plate, and the fin and the positioning plate form a V-shaped support groove; a transversely penetrating threaded hole is provided on the second positioning pin shaft; an external thread matching the threaded hole is provided on the support rod; the support rod can be extended or retracted by rotating the support rod; the end of the support part is flat and matches the V-shaped support groove.

5. A bending machine, characterized by: The bending machine comprises a workbench, a turntable is arranged in the middle of the workbench, a center slot is arranged in the center of the turntable, and a plurality of bending slots are arranged on the turntable; the center slot is used to place the center pin, and the bending slot is used to place the bending pin; positioning bases are arranged on both sides of the turntable, and at least two positioning slots are arranged on the positioning base; the positioning slots are used to insert the positioning pins; The positioning pin shaft includes a first positioning pin shaft and a second positioning pin shaft, a baffle is arranged on the first positioning pin shaft, and a support groove is arranged on the back side of the baffle shaft; a support rod is arranged on the second positioning pin shaft; one end of the support rod is connected to the second positioning pin shaft, and the other end is arranged with a support part; the support part cooperates with the support groove to prevent the baffle shaft from rotating relative to the second positioning pin shaft; the baffle plate is close to the bending pin shaft; the baffle plate and the bending pin shaft are both located on the outside of the bending arc of the steel bar to be bent.

6. A bending machine according to claim 5, characterized in that: A bracket is also arranged on the outside of the positioning base; the bracket comprises a mounting frame and a cross bar, and the mounting frame is arranged on both sides of the cross bar; the cross bar is cylindrical; and the cross bar can rotate on the mounting frame.

7. A bending machine according to claim 6, characterized in that: The tops of the crossbar, the mounting base and the turntable are on the same horizontal plane, and the horizontal plane is parallel to the workbench.

8. A bending machine according to claim 5, characterized in that: It also includes a sleeve, which can be sleeved on the central pin and the bending pin to change the diameters of the central pin and the bending pin.

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