Positioning device for bending reinforcing steel bar

Abstract

Compared with the prior art, the positioning device for bending the reinforcing steel bar has the advantages that during bending, the end of the reinforcing steel bar can push the sliding plate to move in the length direction of the strip-shaped hole to avoid, damage to the surface of the positioning plate is reduced, the positioning device comprises the workbench, the strip-shaped hole is formed in the workbench, and the sliding plate is arranged in the strip-shaped hole. The positioning assembly comprises a supporting plate which is horizontally arranged in a sliding mode in the length direction of the strip-shaped hole; the sliding plate is arranged on the supporting plate in a guiding and sliding mode in the length direction of the strip-shaped hole; the power telescopic rod is vertically arranged on the supporting plate, and a positioning hole plate matched with the power telescopic rod in an inserted mode is arranged on the sliding plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to bending equipment technical field especially steel bar bending positioner. BACKGROUND

[0002] Steel bar bending machine is used for the mechanical in steel bar bending, need in the steel bar predetermined length position bending, currently, the length positioning of steel bar bending includes manual lineation positioning and mechanical positioning two ways, manual lineation positioning is in the position that needs to bend lineation after measuring through the ruler, the worker is positioned bending by observation when bending, this way needs to rely on manual observation adjustment, precision is not high, current has applied less.

[0003] And mechanical positioning is to set the positioning piece on the bending equipment, the positioning piece has a positioning surface, only need to rest the steel bar on the positioning surface when bending, and the positioning is convenient and the accuracy is high, but the positioning surface is generally set as vertical and perpendicular to the extension direction of the steel bar, the end of the steel bar contacts with the positioning surface when positioning, since the end of the steel bar has a certain cross section, the end swings in the process of steel bar bending, the end of the steel bar will interfere with the positioning surface, relative sliding occurs, will damage the positioning surface, and sharp noise will be produced when relative sliding, the larger the cross section of the steel bar, the more obvious the interference with the positioning surface. SUMMARY

[0004] The utility model discloses a kind of positioning devices for steel bar bending, which can reduce the interference phenomenon between positioning surface and steel bar end.

[0005] To achieve the above object, the technical scheme of the utility model is as follows: a positioning device for steel bar bending, comprising a workbench, a strip-shaped hole is provided on the workbench, and a positioning assembly is provided below the workbench.

[0006] A support plate is horizontally slidably arranged along the length direction of the strip-shaped hole.

[0007] A sliding plate is slidably arranged on the support plate along the length direction of the strip-shaped hole.

[0008] A power telescopic rod is vertically arranged on the support plate, and a positioning hole plate is arranged on the sliding plate to be insertedly connected with the power telescopic rod.

[0009] Further, a limiting piece is arranged on one end of the strip-shaped hole and on the upper surface of the workbench, a first limiting surface is arranged on the support plate opposite to the limiting piece, a second limiting surface is arranged on the sliding plate facing the first limiting surface, and the power telescopic rod can be insertedly connected with the positioning hole plate when the first limiting surface and the second limiting surface are in contact.

[0010] Further, the sliding plate is provided with a limiting plate at one end away from the limiting member, the second limiting surface is the surface of the limiting plate, and the first limiting surface is the end surface of the supporting plate.

[0011] Further, the sliding plate and the supporting plate are provided with an elastic member therebetween, and the elastic member can provide elastic force for the sliding plate to move towards the limiting member.

[0012] Further, the supporting plate is provided with a first hanging member at one end close to the limiting member, the sliding plate is provided with a second hanging member at one end away from the limiting member, and the elastic member is a tension spring with two ends respectively hung with the first hanging member and the second hanging member.

[0013] Further, the sliding plate is provided with a connecting member, and the connecting member is provided with a positioning plate at an upper end of the strip-shaped hole.

[0014] Further, the workbench is provided below with a guide member and a lead screw, the guide member is provided with a sliding member in a guiding manner, the lead screw is provided with a lead screw nut in a threaded manner, and the supporting plate is connected with the sliding member and the lead screw nut.

[0015] Further, the tension spring and the positioning hole plate are arranged on two sides of the sliding plate.

[0016] Further, the guide member comprises two guide members symmetrically arranged on two sides of the strip-shaped hole.

[0017] Compared with the prior art, the positioning device for steel bar bending has the following beneficial effects: in the process of bending, the end part of the steel bar can push the sliding plate to move along the length of the strip-shaped hole to avoid relative sliding with the supporting plate, noise can be reduced, the surface of the positioning plate can be prevented from being damaged, the positioning device comprises a workbench, the workbench is provided with a strip-shaped hole, and the positioning assembly is arranged below the workbench and comprises a supporting plate, a sliding plate, and a power telescopic rod. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the whole structure of the steel bar bending device.

[0019] Figure 2 It is a structural schematic view of the hidden lower shell of the steel bar bending device.

[0020] Figure 3 It is a top view structural schematic view of the positioning device for steel bar bending.

[0021] Figure 4The utility model steel bending positioning device's structure schematic view.

[0022] Figure 5 The utility model steel bending positioning device hides positioning plate's structure schematic view.

[0023] Figure 6 The utility model steel bending positioning device's elevation structure schematic view.

[0024] Figure 7 The utility model Figure 5 The utility model steel bending positioning device's structure schematic view of A place in the middle.

[0025] Figure 8 The utility model steel bending positioning device's connecting structure schematic view of support plate and sliding plate.

[0026] In the drawing: 1, workbench;10, lower shell;11, strip hole;

[0027] 2, limiting piece;

[0028] 3, bending head;30, rotating shaft;31, connecting arm;

[0029] 4, positioning plate;41, connecting piece;

[0030] 5, positioning assembly;51, side plate;52, guide piece;520, sliding piece;54, lead screw;540, regular hexagonal prism;541, lead screw nut;55, support plate;551, wing type guide plate;553, first hanging piece;56, sliding plate;561, wing type guide slot;562, positioning hole plate;563, second hanging piece;564, limiting plate;57, power telescopic rod;58, tension spring. Specific implementation

[0031] Now the utility model will be further explained in detail in conjunction with the drawings. The drawing is the simplified schematic view, just with the schematic way to show the basic structure of the utility model, thus it just shows the constitution related with the utility model.

[0032] Please refer to Figures 1-3 The utility model technical scheme is: a steel bending positioning device, including workbench 1, workbench is provided with strip hole 11, still including setting in the positioning assembly 5 of workbench 1 below, positioning assembly 5 includes:

[0033] Support plate 55, along the length direction horizontal sliding of strip hole 11 setting;

[0034] Sliding plate 56, along the length direction guide sliding of strip hole 11 setting on support plate 55;

[0035] A power telescopic rod 57 is vertically arranged on the support plate 55, and a positioning hole plate 562 is arranged on the sliding plate 56 and is inserted and matched with the power telescopic rod.

[0036] Specifically, it should be noted that the specific structure of the steel bar bending device is as shown in Figure 1 、 Figure 2 , which includes a workbench 1, a lower shell 10 is arranged below the workbench, a limiting piece 2 is arranged at one end of the workbench, an annular hole 12 is coaxially arranged around the limiting piece, a rotating shaft 30 is coaxially arranged on the lower surface of the workbench and the annular hole, a bending head 3 is connected to the rotating shaft 30 through a connecting arm 31, the rotating shaft 30 is driven connected with a motor (not shown in the figure), the motor can drive the rotating shaft 30 to rotate around the axis, and when the rotating shaft rotates, the bending head 3 can be driven to move along the direction of the annular hole 12 through the connecting arm 31, referring to Figure 1 , the limiting piece 2 is a columnar piece, which is non-rotationally matched with the workbench, a separation gap is arranged in the middle region of the columnar piece, when bending the steel bar, the steel bar is arranged in the separation gap of the columnar piece, and the length is adjusted to control the rotating shaft 30 to rotate, which drives the bending head 3 to move around the limiting piece 2 along the annular hole 12, and the steel bar is bent under the interaction of the bending head and the limiting piece 2, so as to achieve the purpose of bending the steel bar. The above structure of the steel bar bending machine and its working principle are very mature technologies, which should be understood by those skilled in the art. The difference between the present application and the prior art is that, referring to Figure 1 、 Figure 2 , which is located on one side of the limiting piece 2, a strip-shaped hole 11 is arranged on the workbench 1, the strip-shaped hole coincides with the separation gap on the limiting piece 2, the annular hole 12 is symmetrically arranged about the strip-shaped hole and is located below the strip-shaped hole, a positioning assembly 5 is arranged on the lower surface of the workbench, the positioning assembly 5 includes a support plate 55 which is arranged horizontally along the length direction of the strip-shaped hole and is spaced apart from the lower surface of the workbench, referring to Figure 7The upper surface of the support plate 55 is provided with an airfoil guide plate 551, the sliding plate is provided with an airfoil guide groove 561 in guided cooperation with the airfoil guide plate 551, and the sliding plate 56 is provided with a positioning hole plate 562, that is, a plate body provided with positioning holes. The lower surface of the support plate 55 is vertically provided with a power telescopic rod 57, which can be any one of a pneumatic telescopic rod and an electric telescopic rod. When the telescopic rod of the power telescopic rod is extended, it can be inserted into the positioning hole of the positioning hole plate 562 to position the sliding plate 56. When it is retracted, it can be pulled out of the positioning hole of the positioning hole plate to release the sliding plate 56. At this time, the sliding plate 56 can slide in the guide direction. The sliding plate 56 is connected with a connecting piece 41, and the upper end of the connecting piece is provided with a positioning plate 4. Through this arrangement, when the steel bar is bent, the power telescopic rod is extended and inserted into the positioning hole plate 562 to position the sliding plate 56. Then, according to the size of the steel bar bending, the position of the support plate 55 is adjusted, the distance between the positioning plate 4 and the limiting piece 2 is adjusted, and the size of the steel bar bending is adapted. After the adjustment is completed, the steel bar bending process is started. The steel bar is placed in the separation gap of the limiting piece 2, the end is abutted and positioned with the positioning plate 4, then the control switch of the bending device is turned on, and the bending is started. When the bending is started, the power telescopic rod 57 is controlled to retract first to release the sliding plate 56, and then the driving motor (not shown in the figure) connected with the rotating shaft 30 is controlled to work. When the bending is in progress, the end of the steel bar interferes with the positioning plate 4. The end of the steel bar can push the sliding plate 56 to move along the length of the strip-shaped hole 11 to avoid interference, thereby reducing the relative sliding with the support plate 55 and reducing the noise and damage to the surface of the positioning plate 4.

[0037] Further, as a preferred embodiment, refer to Figure 7 , located at one end of the strip-shaped hole 11, the upper surface of the workbench 1 is provided with a limiting piece 2, the support plate 55 is provided with a first limiting surface opposite to the limiting piece 2, and the sliding plate 56 is provided with a second limiting surface facing the first limiting surface. When the first limiting surface and the second limiting surface are in contact, the power telescopic rod 57 can be inserted and positioned with the positioning hole plate 562. By providing the first limiting surface and the second limiting surface, the positioning hole on the positioning hole plate corresponds to the telescopic rod of the power telescopic rod 57 when the first limiting surface and the second limiting surface abut. Through the positioning cooperation of the first limiting surface and the second limiting surface, the sliding plate 56 is facilitated to return after avoiding interference.

[0038] Further, one end of the sliding plate 56 away from the limiting piece 2 is provided with a limiting plate 564, the second limiting surface is the surface of the limiting plate 564, and the first limiting surface is the end surface of the support plate 55. As a specific embodiment, refer to Figure 7 , the end of the sliding plate 56 is detachably fixedly connected with the limiting plate 564, the lower end of the limiting plate extends downward, the second limiting surface is the surface of the sliding plate, and the first limiting surface is the end surface of the airfoil guide plate.

[0039] Further, as a preferred embodiment, an elastic member is arranged between the sliding plate 56 and the support plate 55, which can provide elastic force to the sliding plate 56 in the direction of approaching the limiting member 2. Specifically, by arranging the elastic member, the sliding plate 56 can be provided with return elastic force, and the sliding plate can move in the direction of approaching the limiting member 2 under the elastic force of the elastic member to make the first limiting surface abut against the second limiting surface. By this arrangement, when bending, the time t1 for the control power telescopic rod to contract to release the sliding plate 56 and keep the contraction state is 5-10 seconds, at this time, the rotating shaft rotates to bend the reinforcing bar, the sliding plate 56 avoids the elastic force of the elastic member under the pushing force of the end of the reinforcing bar, and after the end of the reinforcing bar passes through the positioning plate 4, the sliding plate can return under the elastic force of the elastic member to make the first limiting surface contact with the second limiting surface, and then the power telescopic rod extends to insert into the positioning hole plate 562 to position the sliding plate, which is convenient for next positioning. It should be noted that in the existing reinforcing bar bending device, the time t2 for the power telescopic rod to contract to lift the reinforcing bar to complete the bending is 3-5 seconds, and the holding time t1 of the power telescopic rod in the contraction state should be greater than t2, which is greater than 2-3 seconds, so as to ensure that the sliding plate 56 is fully returned and then the power telescopic rod returns to the elongated state.

[0040] Further, as a specific embodiment, referring to Figure 3 、 Figure 8 , one end of the support plate 55 close to the limiting member 2 is provided with a first hanging member 553, and the other end of the sliding plate 56 away from the limiting member 2 is provided with a second hanging member 563, and the elastic member is a tension spring with the first hanging member and the second hanging member at both ends.

[0041] Further, as a specific embodiment, referring to Figures 1-8 , the sliding plate 56 is provided with a connecting member 41, and the connecting member 41 extends out of the upper end of the strip-shaped hole 11 and is provided with a positioning plate 4.

[0042] Further, as a specific embodiment, referring to Figures 1-6The guiding piece 52 is provided with a sliding piece 520 on the guiding piece 52, and the screw rod is provided with a screw rod nut 541 threaded, and the support plate 55 is connected with the sliding piece 520 and the screw rod nut 541. Specifically, two side plates 51 are provided on the lower surface of the workbench 1, the guiding piece 52 is a guiding rod connected with the two side plates 51 respectively at two ends, the screw rod is rotatably connected with the two side plates 51, and the screw rod is provided with a regular hexagonal prism 540 at one end close to the end of the workbench, so that the screw rod can be driven to rotate by a wrench or the like, and the screw rod nut can be driven to move by rotating the screw rod, so that the support plate 55 is driven to move along the length direction of the strip-shaped hole 11, the position of the support plate 55 is adjusted, the support plate is positioned by the self-locking effect of the screw rod and the screw rod nut after the support plate is adjusted to the appropriate position, and in some embodiments, the sliding piece 520 is provided with a locking screw (not shown in the figure), and the sliding piece and the guiding piece 52 are locked and positioned by the locking screw.

[0043] Further, as a preferred embodiment, referring to Figure 3 The tension spring 58 and the positioning hole plate 562 are arranged on the two sides of the sliding plate 56. Through the arrangement, the overall structure layout is reasonable, the assembly and disassembly of the components are facilitated, and the later maintenance is facilitated.

[0044] Further, as a preferred embodiment, referring to Figures 3-6 The guiding piece 52 includes two guiding pieces symmetrically arranged on the two sides of the strip-shaped hole 11.

[0045] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. All the embodiments do not need to be exhausted, and the obvious changes or variations still fall within the protection scope of the present application.

Claims

1. A positioning device for bending of reinforcement bars, comprising a worktable (1) provided with a slot (11), characterized in that, Further comprising a positioning assembly (5) arranged below the workbench (1), the positioning assembly (5) comprises: A support plate (55) is horizontally slidably arranged along the length direction of the strip-shaped hole (11); A sliding plate (56) is guidingly slidably arranged on the support plate (55) along the length direction of the strip-shaped hole (11); A power telescopic rod (57) is vertically arranged on the support plate (55), and the sliding plate (56) is provided with a positioning hole plate (562) in plug-in cooperation with the power telescopic rod.

2. The positioning device for bending of reinforcing bars according to claim 1, characterized in that The upper surface of the workbench (1) is provided with a limiting piece (21) at one end of the strip-shaped hole (11), the support plate (55) is provided with a first limiting surface away from the limiting piece (21), and the sliding plate (56) is provided with a second limiting surface facing the first limiting surface, when the first limiting surface and the second limiting surface are in contact, the power telescopic rod (57) can be in plug-in positioning cooperation with the positioning hole plate (562).

3. The positioning device for bending of reinforcing bars according to claim 2, characterized in that The end of the sliding plate (56) away from the limiting piece (21) is provided with a limiting plate (564), the second limiting surface is the surface of the limiting plate (564), and the first limiting surface is the end surface of the support plate (55).

4. The positioning device for bending of reinforcing bars according to claim 2, characterized in that, The sliding plate (56) and the support plate (55) are provided with an elastic member therebetween, and the elastic member can provide elastic force of the sliding plate (56) to the direction close to the limiting piece (21).

5. The positioning device for bending of reinforcing bars according to claim 4, characterized in that, The end of the support plate (55) close to the limiting piece (21) is provided with a first hanging piece (553), the end of the sliding plate (56) away from the limiting piece (21) is provided with a second hanging piece (563), and the elastic member is a tension spring with the first hanging piece and the second hanging piece at two ends in hanging cooperation.

6. The positioning device for bending of reinforcing bars according to claim 2, characterized in that, The sliding plate (56) is provided with a connecting piece (41), and the connecting piece (41) is provided with a positioning plate (4) extending out of the upper end of the strip-shaped hole (11).

7. The positioning device for bending of reinforcing bars according to claim 2, characterized in that, The lower surface of the workbench (1) is provided with a guide piece (52) and a lead screw (54) in parallel and at intervals, the guide piece (52) is provided with a sliding piece (520) in a guiding manner, the lead screw is provided with a lead screw nut (541) in a threaded manner, and the support plate (55) is connected with the sliding piece (520) and the lead screw nut (541).

8. The positioning device for bending of reinforcing bars according to claim 5, characterized in that, The tension spring (58) and the positioning hole plate (562) are arranged on two sides of the sliding plate (56).

9. The positioning device for bending of reinforcing bars according to claim 7, characterized in that, The guide piece (52) comprises two guide pieces symmetrically arranged on two sides of the strip-shaped hole (11).

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