Steel bar clamping mechanism and compact steel bar clamping device

Abstract

The utility model provides a reinforcing steel bar clamping mechanism and a compact reinforcing steel bar clamping device, and the reinforcing steel bar clamping mechanism comprises a hydraulic cylinder which provides lifting driving force; the driving plate is connected with the output end of the hydraulic cylinder; the horizontal height of the clamping jaw is fixed; the two clamping jaws are arranged on the driving plate, the driving plate is driven to ascend and descend through ascending and descending of the output end of the hydraulic cylinder, the two clamping jaws are driven to be away from or close to each other, and loosening and clamping actions are completed. According to the utility model, the reinforcing steel bar can be completely fixed during rib stripping and thread rolling of the reinforcing steel bar. The distance between the mechanisms is small, the overall size of the equipment is small, the steel bar circulation distance is short, the logistics takt is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, specifically to a steel bar clamping mechanism and a compact steel bar clamping device. Background Technology

[0002] In the process of batch thread rolling, effectively fixing the reinforcing bars is a crucial step. If this step still relies on manual operation, it will inevitably lead to problems of low efficiency and insufficient accuracy.

[0003] Furthermore, it is worth noting that thread rolling is only one step in the rebar processing procedure. If manual methods or large clamping mechanisms are used to fix the rebar in this step, it will negatively impact the overall processing speed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a rebar clamping mechanism and a compact rebar clamping device.

[0005] According to one aspect of the present invention, a rebar clamping mechanism is provided, comprising:

[0006] A hydraulic cylinder that provides lifting driving force;

[0007] A drive plate, which is connected to the output end of the hydraulic cylinder;

[0008] The gripper is a gripper with a fixed horizontal height; two grippers are mounted on the drive plate. The drive plate is raised or lowered by the lifting and lowering of the output end of the hydraulic cylinder, which drives the two grippers to move away from or towards each other, thereby completing the corresponding loosening or clamping action.

[0009] Preferably, the drive plate has a V-shaped opening from the top downwards for placing the reinforcing bars, and the two grippers are symmetrically installed on both sides of the V-shaped opening.

[0010] Preferably, the drive plate has a moving groove with an inclination equal to that of the V-shaped opening;

[0011] The gripper has a sliding rod that runs through both ends of the gripper and passes through the moving groove.

[0012] Preferably, the drive board has a slot extending upwards from the bottom;

[0013] The drive plate and the hydraulic cylinder are connected by a floating joint. The top of the floating joint is locked in the slot, and the bottom is fixed to the output end of the hydraulic cylinder.

[0014] Preferably, it further includes a clamping frame that surrounds the drive plate and the gripper;

[0015] The clamping frame includes:

[0016] A base plate, which is placed horizontally and located below the drive plate;

[0017] The two upright plates are vertically fixed to a set of opposite sides of the base plate and are parallel to the plane where the drive plate is located.

[0018] Side plates, two of which are disposed on another set of opposite sides of the base plate, are connected to the upright plate, and surround the drive plate and the gripper.

[0019] Preferably, the side plate has a sliding groove, and the drive plate is engaged in the sliding groove and moves up and down along the sliding groove; the drive plate only has the degree of freedom in the lifting direction.

[0020] Preferably, it further includes a horizontally placed linear guide rail, which includes a slider and a slide rail. The slider is fixed to the vertical plate, and the slide rail is fixed to the gripper. The gripper has only a horizontal degree of freedom.

[0021] Preferably, a groove for placing reinforcing bars is provided on the upright plate;

[0022] When the gripper is released, the drive plate is lower than the upright plate and the side plate.

[0023] Preferred options also include:

[0024] A base, located below the base plate;

[0025] An adjustment block is fixed to the base; the adjustment block has two adjustment holes for adjusting the horizontal position of the base plate.

[0026] According to a second aspect of the present invention, a compact rebar clamping device is provided, comprising a plurality of rebar clamping mechanisms arranged side by side, wherein the spacing between adjacent rebar clamping mechanisms is 300-400mm.

[0027] Compared with the prior art, the embodiments of this utility model have at least one of the following beneficial effects:

[0028] This utility model discloses a rebar clamping mechanism that ensures that the rebar can be completely fixed during rib stripping and thread rolling.

[0029] This utility model discloses a compact rebar clamping device with small spacing between adjacent mechanisms, resulting in a small overall size of the equipment, short rebar transfer distance, reduced logistics cycle time, and improved processing efficiency. Attached Figure Description

[0030] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0031] Figure 1 This is an external schematic diagram of the rebar clamping mechanism in one embodiment of the present utility model;

[0032] Figure 2 This is an internal schematic diagram of the rebar clamping mechanism in one embodiment of the present invention.

[0033] In the diagram: 1-base plate; 2-vertical plate; 21-rebar placement groove; 3-side plate; 31-slide groove; 4-base; 5-adjusting block; 51-through hole; 52-threaded hole; 6-hydraulic cylinder; 7-linear guide rail; 71-slider; 72-slide rail; 8-gripper; 81-fixed tooth; 9-slide rod; 10-drive plate; 101-moving groove; 102-slot; 11-floating joint. Detailed Implementation

[0034] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0035] like Figure 1 and Figure 2 As shown in one embodiment of this utility model, a rebar clamping mechanism mainly includes: a hydraulic cylinder 6, a drive plate 10, and grippers 8. The hydraulic cylinder 6 provides lifting driving force; the drive plate 10 is connected to the output end of the hydraulic cylinder 6; the grippers 8 are grippers with a fixed horizontal height; the two grippers are set on the drive plate, and the lifting of the hydraulic cylinder output end drives the drive plate to lift, driving the two grippers to move away from or closer to each other, completing the corresponding loosening or clamping action.

[0036] In the above embodiment, the relative movement of the two grippers is achieved by the driving action of the hydraulic cylinder, which can complete the clamping and releasing actions, ensuring that the steel bars can be completely fixed during steel bar rib stripping and thread rolling, and released after processing is completed.

[0037] To better suit the working conditions, in a preferred embodiment of this invention, the drive plate 10 has a V-shaped opening from the top downwards for placing the reinforcing bars, and two grippers are symmetrically installed on both sides of the V-shaped opening. During processing, the reinforcing bars pass through the V-shaped opening, and the grippers clamp them.

[0038] There are various mechanical structures that use a drive plate to lift and move a gripper. In a preferred embodiment of this invention, a space-saving structure is designed. A moving groove 101 with the same slope as the V-shaped opening is formed in the drive plate 10 itself; a sliding rod 9 passing through both ends is provided inside the gripper 8, and the sliding rod 9 passes through the moving groove 101. The entire structure is designed within the space occupied by the drive plate and the gripper itself, without occupying additional space.

[0039] In a preferred embodiment, the gripper 8 is designed as a rectangular frame structure, and the opposing surfaces of the two grippers 8 are provided with three spaced fixing teeth 81, and each fixing tooth is provided with an anti-slip layer.

[0040] In a preferred embodiment, the drive plate 10 has a slot 102 formed from the bottom to the top; the drive plate 10 is connected to the hydraulic cylinder 6 through a floating joint 11, the top of the floating joint 11 is locked in the slot 102, and the bottom is fixed to the output end of the hydraulic cylinder 6.

[0041] To ensure precise and efficient clamping and releasing actions, a preferred embodiment of this invention restricts the drive plate to only have a single degree of freedom in the vertical direction, and restricts the gripper to only have a single degree of freedom in the horizontal direction. Specifically, a clamping frame is used to surround the drive plate 10 and the gripper 8.

[0042] The clamping frame includes a base plate 1, an upright plate 2, and a side plate 3. The base plate 1 is placed horizontally below the drive plate 10; the upright plate 2 is vertically fixed to one set of opposite sides of the base plate, and the plane of the upright plate 2 is parallel to the plane of the drive plate 10; the side plate 3 is set on another set of opposite sides of the base plate 1, connected to the upright plate 2, and surrounds the drive plate 10 and the gripper 8.

[0043] Furthermore, in a preferred embodiment, the side plate 3 has a sliding groove 31, and the drive plate 10 is engaged in the sliding groove 31 and moves up and down along the sliding groove 31; the drive plate has a single degree of freedom in the lifting direction.

[0044] Furthermore, in a preferred embodiment, a linear guide 7 is employed. The linear guide 7 is a commonly used mechanism in the art, comprising a slider 71 and a slide rail 72. The linear guide 7 is placed horizontally, with its slider 71 fixed to the upright plate 2 and its slide rail 72 fixed to the gripper 8, specifically to a sliding rod 9 extending from inside the gripper 8. The gripper 8 has only one degree of freedom in the horizontal direction, and its horizontal height is fixed.

[0045] Similarly, in order to fit the working conditions during processing and to limit the lateral movement of the reinforcing bars and assist in clamping, in a preferred embodiment of this utility model, a reinforcing bar placement groove 21 is provided on the upright plate 2. This reinforcing bar placement groove has a U-shaped structure to fit the shape of the reinforcing bars.

[0046] Since other processes are required after thread rolling and rib stripping, in order to make room for the steel bars to move and pass, the drive plate 8 is lower than the vertical plate 2 and the side plate 3 when the clamps are released.

[0047] In another embodiment, a base 4 and an adjusting block 5 are used. The clamping mechanism is mounted on the base 4, and its overall horizontal position is adjusted by the adjusting block 5. The bottom of the adjusting block 5 is fixed to the base 4, and the adjusting block 5 has two adjusting holes: a through hole 51 and a threaded hole 52. A threaded hole is provided on the base 4 at a position corresponding to the through hole. A screw passes through the through hole 51 and the threaded hole. Turning the screw pulls the base 4 back, which in turn pulls the entire clamping mechanism back. At the other threaded hole 52, a screw is directly rotated within the threaded hole 52 to push the entire mechanism outward. By adjusting the position of the entire clamping mechanism using this adjusting block, the jaws are aligned with the thread rolling and stripping head during processing.

[0048] The working principle of the rebar clamping mechanism in the above embodiments is as follows:

[0049] The hydraulic cylinder 6 is connected to the drive plate 10 through the floating joint 11, so that the drive plate 10 moves up and down with the hydraulic cylinder 6; the slide groove 31 of the side plate 3 restricts the drive plate 10's other degrees of freedom except for moving up and down; the gripper 8 is connected to the drive plate 10 through the slide rod 9.

[0050] When the drive plate 10 rises or falls, it drives the gripper 8 to move. Since the gripper 8 is connected to the linear guide rail 7, the vertical freedom of the gripper 8 is restricted, so that it can only move left and right in the horizontal direction to complete the clamping or releasing action: when the drive plate 10 rises, the gripper 8 clamps in the middle; when it falls, the gripper 8 releases to both sides.

[0051] Based on the same technical concept, in other embodiments of this utility model, a compact rebar clamping device is provided, including multiple rebar clamping mechanisms arranged side by side as described in the above embodiments, with a spacing of 300-400mm between adjacent mechanisms.

[0052] In one specific embodiment, the clamping mechanism spacing is 350mm, which means that the rebar translation distance is 350mm. The shorter the translation distance of the rebar, the faster the transmission cycle, which is generally around 2 seconds.

[0053] Furthermore, traditional thread rolling clamps often use a T-shaped lead screw to drive the clamping blocks, which is difficult to adjust for centering, prone to chipping and jamming, and the internal lead screw is easily damaged after prolonged use. The clamping device in this embodiment has a compact structure, is less prone to chipping, ensures centering through machining accuracy, and is simple and reliable.

[0054] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model. The above-described preferred features can be used in any combination without conflict.

Claims

1. A reinforcing bar clamping mechanism, characterised in that, include: A hydraulic cylinder that provides lifting driving force; A drive plate, which is connected to the output end of the hydraulic cylinder; The gripper is a gripper with a fixed horizontal height; The two grippers are mounted on the drive plate. The drive plate is raised or lowered by the output end of the hydraulic cylinder, which in turn drives the two grippers to move away from or towards each other, thereby completing the release or clamping action.

2. A reinforcing bar clamping mechanism according to claim 1, wherein The drive plate has a V-shaped opening from the top downwards for placing the reinforcing bars, and the two grippers are symmetrically installed on both sides of the V-shaped opening.

3. A reinforcing bar clamping mechanism according to claim 2, wherein The drive plate has a moving slot with an inclination equal to that of the V-shaped opening; The gripper has a sliding rod that runs through both ends of the gripper and passes through the moving groove.

4. A rebar clamping mechanism according to claim 1, wherein, The drive board has a slot extending upwards from the bottom; The drive plate and the hydraulic cylinder are connected by a floating joint. The top of the floating joint is locked in the slot, and the bottom is fixed to the output end of the hydraulic cylinder.

5. A rebar clamping mechanism according to claim 1, wherein It also includes a clamping frame that surrounds the drive plate and the grippers; The clamping frame includes: A base plate, which is placed horizontally and located below the drive plate; The two upright plates are vertically fixed to a set of opposite sides of the base plate and are parallel to the plane where the drive plate is located. Side plates, two of which are disposed on another set of opposite sides of the base plate, are connected to the upright plate, and surround the drive plate and the gripper.

6. A reinforcing bar clamping mechanism according to claim 5, wherein The side plate has a sliding groove, and the drive plate is engaged in the sliding groove and moves up and down along the sliding groove; the drive plate only has the degree of freedom in the lifting direction.

7. A reinforcing bar clamping mechanism according to claim 5 wherein, It also includes a horizontally placed linear guide rail, which includes a slider and a slide rail. The slider is fixed to the vertical plate, and the slide rail is fixed to the gripper. The gripper only has a horizontal degree of freedom.

8. A rebar clamping mechanism according to claim 5, wherein, The upright plate has a groove for placing reinforcing bars; When the gripper is released, the drive plate is lower than the upright plate and the side plate.

9. A rebar clamping mechanism according to claim 5, wherein, Also includes: A base, located below the base plate; An adjustment block, which is fixed to the base; The adjustment block has two adjustment holes for adjusting the horizontal position of the base plate.

10. A compact steel bar clamping device, characterized by, It includes multiple steel bar clamping mechanisms as described in any one of claims 1-9 arranged side by side, with the spacing between adjacent steel bar clamping mechanisms being 300-400mm.

Images