CN220388644U - Reinforcing steel bar clamping mechanism - Google Patents

Abstract

The utility model belongs to the technical field of steel bar machining, and discloses a steel bar clamping mechanism which comprises a guide seat, a clamping arm, a lifting support and a driving assembly, wherein two guide holes are formed in the guide seat, and the axes of the two guide holes are intersected above the guide seat; the two clamping arms are respectively and slidably arranged in the two guide holes, and the bottom ends of the two clamping arms are slidably connected to the lifting support; the output end of the driving component is provided with a lifting support, the driving component is configured to drive the lifting support to conduct lifting movement, when the lifting support ascends, the bottom ends of the two clamping arms slide on the lifting support and are close to each other, and the top ends of the two clamping arms slide above the guide seat along the guide holes and can clamp the reinforcing steel bars. The utility model fully utilizes the vertical space to clamp and release the steel bars, has small required operation space, compact structure and easy implementation.

Description

Reinforcing steel bar clamping mechanism

Technical Field

The utility model relates to the technical field of steel bar machining, in particular to a steel bar clamping mechanism.

Background

In the automatic processing process of the steel bars, the clamping of the steel bars is an indispensable precondition for processing. In a common traditional steel bar clamping mechanism, left and right clamping arms are pushed by an air cylinder to transversely clamp or cross clamp, the clamping contact part is usually a clamping plate, and the expansion and contraction of the air cylinder pushes a clamping plate of the clamping mechanism to loosen or clamp steel bars. In general, the steel bar clamping mechanism needs to be installed at one side of a main machine or at the middle position of two main machines, enough movable space is needed, the clamped steel bars are in an immovable state, and the next working procedure can be performed after the clamping is released.

With the improvement of the processing technology of the steel bars, the requirements on the processing and production efficiency of the steel bars are higher. The existing steel bar clamping mechanism needs to be provided with independent installation positions at two sides of a steel bar assembly line, a large operation space is needed for clamping and loosening steel bars, and the arrangement of the air cylinder and the clamping plate needs to occupy a large installation space; the clamping plate of the steel bar clamping mechanism is always exposed on the working face, so that the transportation of the next working procedure of the steel bar is affected, and potential safety hazards exist; the clamped steel bars cannot move, and the next procedure can be performed only by loosening the clamping plates, so that the production efficiency is affected.

Disclosure of Invention

The utility model aims to provide a steel bar clamping mechanism, which aims to solve the problem that the steel bar clamping mechanism has large operation space when clamping and releasing steel bars.

To achieve the purpose, the utility model adopts the following technical scheme:

a rebar clamping mechanism comprising:

the guide seat is provided with two guide holes, and the axes of the two guide holes are intersected above the guide seat;

the two clamping arms are respectively and slidably arranged in the two guide holes;

the lifting support is connected with the bottom ends of the two clamping arms in a sliding manner;

the output end of the driving assembly is provided with the lifting support, the driving assembly is configured to drive the lifting support to conduct lifting movement, when the lifting support ascends, the bottom ends of the two clamping arms slide on the lifting support and are close to each other, and the top ends of the two clamping arms slide above the guide seat along the guide hole and can clamp the steel bars.

Optionally, the top of clamp arm is equipped with the pinch roller, the pinch roller with clamp arm rotates to be connected, the reinforcing bar can press from both sides tightly between the roller.

Optionally, the top of clamp arm sets up the mounting groove, set up the pivot in the mounting groove, the clamp roller cover is established in order to rotate in the pivot and connect, the axis of pivot sets up along vertical direction.

Optionally, one end of the rotating shaft is fixed at the bottom of the mounting groove, and the clamping roller sleeve is arranged on the rotating shaft and can rotate freely.

Optionally, when the clamping arm slides down to the lowest height along the guide hole, the top end of the clamping arm and the top end of the clamping roller are not higher than the top end of the guide seat.

Optionally, the steel bar clamping mechanism further comprises a slider, wherein the top end of the slider is hinged to the bottom end of the clamping arm, and the bottom end of the slider is slidably connected to the lifting support.

Optionally, the steel bar clamping mechanism further comprises a sliding block, an inclined plane is arranged at the top end of the sliding block, the inclined plane is perpendicular to the axis of the guide hole, the bottom end of the clamping arm is fixed on the inclined plane and perpendicular to the inclined plane, and the bottom end of the sliding block is slidably connected with the lifting support.

Optionally, a sliding rail is arranged on the lifting support, and the sliding block is slidably connected with the sliding rail.

Optionally, the sliding rail has a T-shaped cross section, the sliding block has a T-shaped sliding groove, the T-shaped sliding groove is slidably connected to the sliding rail, and the sliding rail abuts against the inner wall of the T-shaped sliding groove.

Optionally, the driving assembly includes:

the piston of the air cylinder is vertically upwards arranged;

the fixed seat is arranged right below the guide seat, and the air cylinder is arranged on the fixed seat;

and the floating joint is arranged at the top end of the piston of the cylinder and used for installing and fixing the lifting bracket.

The utility model has the beneficial effects that:

according to the steel bar clamping mechanism, the two guide holes are formed in the guide seat, the axes of the two guide holes are intersected above the guide seat, so that the two clamping arms can clamp and release steel bars through sliding in the guide holes, the sliding of the clamping arms is converted into the sliding of the bottom ends of the two clamping arms through the lifting motion of the driving component driving the lifting support, the sliding of the two clamping arms is further converted into the sliding of the two clamping arms obliquely upwards along the guide holes, the vertical space below the steel bars is fully utilized for setting the steel bar clamping mechanism, the operation space is small, the structure is compact, and the implementation is easy.

Drawings

Fig. 1 is a schematic view showing a state in which a reinforcing bar is clamped by a reinforcing bar clamping mechanism of the present utility model;

fig. 2 is a schematic view showing a state in which a clamping arm of the reinforcing bar clamping mechanism of the present utility model is extended;

fig. 3 is a schematic view showing a state in which a clamping arm of the reinforcing bar clamping mechanism of the present utility model is retracted;

fig. 4 is a cross-sectional view A-A of fig. 1.

In the figure:

100. reinforcing steel bars; 200. a bracket;

1. a guide seat; 11. a guide hole; 2. a clamping arm; 21. a mounting groove; 22. a rotating shaft; 3. lifting the bracket; 31. a slide rail; 4. a drive assembly; 41. a cylinder; 42. a fixing seat; 43. a floating joint; 5. a nip roller; 6. a slide block; 61. and (5) an inclined plane.

Detailed Description

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

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model provides a steel bar clamping mechanism, which is shown in fig. 1-4, and comprises a guide seat 1, a clamping arm 2, a lifting bracket 3 and a driving assembly 4, wherein two guide holes 11 are formed in the guide seat 1, and the axes of the two guide holes 11 are intersected above the guide seat 1; the two clamping arms 2 are respectively and slidably arranged in the two guide holes 11; the lifting bracket 3 is connected with the bottom ends of the two clamping arms 2 in a sliding way; the output end of the driving component 4 is provided with a lifting support 3, the driving component 4 is configured to drive the lifting support 3 to perform lifting motion, when the lifting support 3 ascends, the bottom ends of the two clamping arms 2 slide on the lifting support 3 and are close to each other, and the top ends of the two clamping arms 2 slide to the upper side of the guide seat 1 along the guide hole 11 and can clamp the reinforcing steel bars 100.

According to the steel bar clamping mechanism, the guide seat 1 is fixedly arranged on the support 200 of the conveying equipment of the steel bars 100, and the bottom end of the driving component 4 is fixedly arranged below the guide seat 1 so as to ensure that the relative positions of the driving component 4 and the guide seat 1 are fixed. Through setting up two guiding holes 11 and the axis of two guiding holes 11 in the guide holder 1 intersects in the top of guide holder 1 and forms contained angle B for two clamping arms 2 can realize the clamping and the release of top to reinforcing bar 100 of clamping arm 2 through the oblique slip in guiding hole 11, can understand that two guiding holes 11 are the slope and set up relatively, and two clamping arms 2 are close to each other at the top of two clamping arms 2 when two guiding holes 11 slip rise, can realize the clamp to the reinforcing bar 100 of different external diameter sizes. The lifting motion of the lifting support 3 is driven by the driving component 4 to be converted into sliding lifting of the two clamping arms 2 in the guide holes 11, the vertical space below the reinforcing steel bar 100 is fully utilized to set the reinforcing steel bar clamping mechanism by utilizing the conversion relation of the motion direction, the operation space is small, the structure is compact, and the implementation is easy.

Optionally, the top end of the clamping arm 2 is provided with a clamping roller 5, the clamping roller 5 is rotatably connected with the clamping arm 2, and the reinforcing steel bar 100 can be clamped between the two clamping rollers 5.

As shown in fig. 1 to 4, the clamping roller 5 is rotatably connected with the clamping arms 2, and when the two clamping arms 2 slide along the guide holes 11, the clamping roller 5 is driven to move, and the clamping and releasing actions of the reinforcing steel bars 100 are realized by the movement of the two clamping rollers 5 approaching and separating from each other. The clamp roller 5 rotates and connects in the top of clamp arm 2, when steel bar 100 presss from both sides the roller 5 when tight, because clamp roller 5 is the free rotation state, consequently, when steel bar 100 has the atress of major axis direction, steel bar 100 can drive the rotation of two clamp rollers 5 for form roll connection between steel bar 100 and the clamp roller 5, be convenient for steel bar 100 can remove under the exogenic action when pressing from both sides the tight state, do benefit to and ensure that the removal position of steel bar 100 is stable, and steel bar 100 does not need the release operation of first steel bar 100 when needing to remove, do benefit to the machining efficiency that improves steel bar 100, satisfy the processing state demand of more steel bars 100.

Optionally, the top end of the clamping arm 2 is provided with a mounting groove 21, a rotating shaft 22 is arranged in the mounting groove 21, the clamping roller 5 is sleeved on the rotating shaft 22 to be rotationally connected, and the axis of the rotating shaft 22 is arranged along the vertical direction.

As shown in fig. 2, the mounting grooves 21 are right-angle grooves, two mounting grooves 21 are formed in opposite sides of the two clamping arms 2, and the clamping roller 5 is rotatably arranged in the mounting grooves 21, so that vertical rotation of the clamping roller 5 is conveniently realized, and the clamping roller 5 is prevented from being limited by the size of the guide hole 11. The tank bottom of the mounting groove 21 is a horizontal plane, the rotating shaft 22 is fixed on the tank bottom, the width of the tank bottom is not smaller than the outer diameter of the clamping roller 5, the height of the tank wall of the mounting groove 21 is not smaller than the height of the clamping roller 5, the center through hole of the clamping roller 5 is sleeved on the rotating shaft 22 to realize free rotation, the clamping roller 5 rotates in the mounting groove 21, the mounting groove 21 can protect the clamping roller 5, and the arrangement of the clamping roller 5 does not influence the sliding of the clamping arm 2. When the clamping roller 5 rotates along the rotating shaft 22 in the vertical direction, the length of the clamping roller 5 in the vertical direction can adapt to clamping of reinforcing steel bars 100 with various sizes, and the application range is wider. The two clamping rollers 5 rotate around the two rotating shafts 22 arranged in the vertical direction, so that the reinforcing steel bars 100 can move along the long axis direction, and the requirements of the production process are met.

Alternatively, when the clamping arm 2 slides down to the lowest height along the guide hole 11, the top end of the clamping arm 2 and the top end of the clamping roller 5 are not higher than the top end of the guide seat 1.

As shown in fig. 2, when the clamping arm 2 is raised to the maximum height, the clamping roller 5 can be positioned entirely above the guide holder 1 so as to clamp the reinforcing bar 100. The axial height of the pinch roller 5 is not less than the outer diameter of the reinforcing bar 100 so as to stably pinch the reinforcing bar 100. As shown in fig. 3, when the clamping arm 2 descends to the lowest height, the clamping roller 5 can be completely retracted in the guide hole 11, so that the top end of the clamping arm 2 and the top end of the clamping roller 5 are not higher than the top end of the guide seat 1, and the situation that the position interference is generated on the reinforcing steel bar 100 in a non-clamping state and the bending forming of the reinforcing steel bar 100 is affected is avoided. Preferably, the height of the guide hole 11 along the height direction of the guide seat 1, namely the vertical direction is equal to the vertical height of the guide seat 1, and the height of the mounting groove 21 is equal to the height of the guide seat 1, so that the upper end and the lower end of the pinch roller 5 after shrinkage are both positioned in the guide hole 11, the pinch roller 5 is protected, and the safety of the processing process of the reinforcing steel bar 100 is improved. To ensure the mounting stability of the pinch roller 5, the tip outer diameter of the rotating shaft 22 is larger than the aperture of the center through hole of the pinch roller 5 to prevent the pinch roller 5 from being separated upward from the rotating shaft 22.

Optionally, the steel bar clamping mechanism further includes a slider 6, where the slider 6 is disposed between the bottom end of the clamping arm 2 and the lifting support 3, and the slider 6 has two optional connection modes, specifically:

in some embodiments, as shown in fig. 1, the top end of the slider 6 is provided with a slope 61, the slope 61 is perpendicular to the axis of the guide hole 11, the bottom end of the clamping arm 2 is fixed on the slope 61 and perpendicular to the slope 61, and the bottom end of the slider 6 is slidably connected to the lifting bracket 3. When the axis of the two guide holes 11 forms an angle B, the inclined surface 61 forms an angle C with the sliding plane (horizontal plane), and the angle C is equal to half of the angle B. The inclined surface 61 is provided with a groove for fixing the bottom end of the clamping arm 2, and when the sliding block 6 slides, the clamping arm 2 moves along the direction vertical to the inclined surface 61 to realize oblique lifting sliding. The stable connection of the slide 6 to the clamping arm 2 is advantageous for ensuring accurate control of the clamping force of the two clamping rollers 5.

In other embodiments, the top end of the slider 6 is hinged to the bottom end of the clamping arm 2, and the bottom end of the slider 6 is slidably connected to the lifting bracket 3; in an alternative embodiment, the top end of the sliding block 6 is hinged to the bottom end of the clamping arm 2, when the lifting support 3 ascends, the distance between the lifting support 3 and the guide seat 1 is reduced, the length of the clamping arm 2 between the lifting support 3 and the guide seat 1 is reduced, namely, the clamping arm 2 slides upwards along the guide hole 11 to drive the two sliding blocks 6 to slide close to each other, the included angle between the bottom end of the clamping arm 2 and the top end of the sliding block 6 is changed, the hinging mode is spherical hinging, and the hinging mode is convenient for setting the clamping arm 2 to have larger sliding stroke, so that the structure of the steel bar clamping mechanism is more compact. When the hinge is used, a sliding guide mechanism is generally provided between the guide hole 11 and the clamp arm 2 to ensure that the clamp arm 2 has a single sliding motion.

Optionally, a sliding rail 31 is provided on the lifting support 3, and the slider 6 is slidably connected to the sliding rail 31.

As shown in fig. 1, the lifting bracket 3 is provided with a sliding rail 31 for guiding and controlling the sliding direction of the bottom end of the sliding block 6 or the clamping arm 2, thereby improving the precision of the clamping force for clamping the reinforcing steel bar 100 and having good clamping effect. The guide rail 31 may be in a single row or a double row, and the specific structure is not limited.

Optionally, the sliding rail 31 has a T-shaped cross section, the sliding block 6 has a T-shaped sliding groove, the T-shaped sliding groove is slidably connected to the sliding rail 31, and the sliding rail 31 abuts against an inner wall of the T-shaped sliding groove.

As shown in fig. 4, in this embodiment, a single-row guide rail is adopted, the slide rail 31 is of a T-shaped cross section, and is in sliding connection with a T-shaped chute at the bottom end of the slide block 6, the inner wall of the T-shaped chute abuts against the outer wall of the slide rail 31, which is beneficial to ensuring the consistency of the sliding direction of the slide block 6, and the bottom of the T-shaped chute abuts against the top end of the slide rail 31, so that the slide block 6 only contacts with the top end and two sides of the slide rail 31 when sliding, and a certain gap is formed between the bottom end of the slide block 6 and the upper surface of the lifting bracket 3 to avoid friction resistance between the slide block 6 and the lifting bracket 3.

Optionally, the driving assembly 4 includes a cylinder 41, a fixing seat 42 and a floating joint 43, the cylinder 41 is fixedly arranged under the guide seat 1 through the fixing seat 42, a piston of the cylinder 41 is vertically arranged upwards, and the floating joint 43 is fixed at an end of the piston for installing and fixing the lifting bracket 3. Wherein the floating joint 43 includes a movable joint and a fixed joint for ensuring stable and normal driving operation of the cylinder 41.

The process of clamping and releasing the steel bar 100 by the steel bar clamping mechanism provided by the utility model comprises the following steps:

the driving component 4 drives the lifting bracket 3 to ascend; so that the distance between the lifting bracket 3 and the guide seat 1 becomes smaller.

The two clamping arms 2 slide upwards along the two guide holes 11 of the guide seat 1 respectively, and the bottom ends of the two clamping arms 2 slide on the lifting bracket 3 and are close to each other;

the top ends of the two clamping arms 2 are in contact with the reinforcing steel bar 100 and clamp the reinforcing steel bar 100;

the driving component 4 stops driving the lifting bracket 3 and keeps the current state until receiving the release instruction.

In the process of clamping the steel bar 100, after the driving component 4 receives a clamping instruction, the driving component 4 drives the lifting support 3 to ascend, so that the distance between the lifting support 3 and the guide seat 1 is reduced, the clamping arm 2 slides upwards along the guide hole 11, and then the bottom ends of the clamping arms 2 are driven to slide on the lifting support 3, and the bottom ends of the two clamping arms 2 are close to each other; meanwhile, while the clamping arms 2 slide upward, the tips of the clamping arms 2 approach each other, and after the tips of the two clamping arms 2 contact the reinforcing bar 100, the movement is continued until the reinforcing bar 100 is clamped. The pressure sensor can be arranged on the top clamping surface of the clamping arm 2 to control the clamping force of the steel bar 100, the pressure sensor is fed back to the driving component 4 so as to provide accurate driving force, the driving force is kept until the steel bar 100 is in a clamping state, the next working procedure is needed, after the driving component 4 receives a release instruction, the driving component 4 drives the lifting support 3 to descend, the lifting support 3 drives the sliding block 6 and the clamping arm 2 to downwards, the clamping arm 2 slides downwards along the guide hole 11, the gap between the top ends of the two clamping arms 2 is enlarged until the top ends of the two clamping arms 2 and the clamping roller 5 are all recovered into the guide hole 11, and the driving component 4 stops. The utility model realizes the clamping and releasing of the reinforcing steel bar 100 in the vertical space through the conversion of vertical driving, horizontal sliding and inclined sliding, and has small operation space, compact structure and easy implementation. And the top end of the clamping arm 2 is provided with the clamping roller 5, so that the clamped steel bar 100 can move under the action of external force, and the moving requirement in the production process of the steel bar 100 is met.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The reinforcing bar clamping mechanism, its characterized in that includes:

the guide seat (1), two guide holes (11) are formed in the guide seat (1), and the axes of the two guide holes (11) are intersected above the guide seat (1);

the clamping arms (2) are respectively and slidably arranged in the two guide holes (11);

the lifting support (3) is connected with the bottom ends of the two clamping arms (2) in a sliding manner;

the driving assembly (4), the output of driving assembly (4) sets up lift support (3), driving assembly (4) are configured to drive lift support (3) elevating movement, work as lift support (3) rise, two the bottom of clamp arm (2) is in lift support (3) is gone up to slide and be close to each other, two the top of clamp arm (2) is followed guiding hole (11) to the top of guide holder (1) is slided and can clamp reinforcing bar (100).

2. The steel bar clamping mechanism according to claim 1, wherein a clamping roller (5) is arranged at the top end of the clamping arm (2), the clamping roller (5) is rotatably connected with the clamping arm (2), and the steel bar (100) can be clamped between the two clamping rollers (5).

3. The steel bar clamping mechanism according to claim 2, wherein a mounting groove (21) is formed in the top end of the clamping arm (2), a rotating shaft (22) is arranged in the mounting groove (21), the clamping roller (5) is sleeved on the rotating shaft (22) to be connected in a rotating mode, and the axis of the rotating shaft (22) is arranged in the vertical direction.

4. A bar clamping mechanism according to claim 3, wherein one end of the rotating shaft (22) is fixed at the bottom of the mounting groove (21), and the clamping roller (5) is sleeved on the rotating shaft (22) and can rotate freely.

5. The bar clamping mechanism as recited in claim 4, characterised in that the top end of the clamping arm (2) and the top end of the clamping roller (5) are not higher than the top end of the guide holder (1) when the clamping arm (2) slides down the guide hole (11) to the lowest height.

6. The steel bar clamping mechanism according to claim 1, further comprising a slider (6), wherein the top end of the slider (6) is hinged to the bottom end of the clamping arm (2), and the bottom end of the slider (6) is slidably connected to the lifting bracket (3).

7. The steel bar clamping mechanism according to claim 1, further comprising a sliding block (6), wherein an inclined plane is arranged at the top end of the sliding block (6), the inclined plane is perpendicular to the axis of the guide hole (11), the bottom end of the clamping arm (2) is fixed on the inclined plane and perpendicular to the inclined plane, and the bottom end of the sliding block (6) is slidably connected to the lifting support (3).

8. The bar clamping mechanism as claimed in claim 6 or 7, wherein the lifting bracket (3) is provided with a sliding rail (31), and the sliding block (6) is slidably connected to the sliding rail (31).

9. The bar clamping mechanism as recited in claim 8, characterized in that the slide rail (31) has a T-shaped cross section, the slide block (6) has a T-shaped slide groove, the T-shaped slide groove is slidably connected to the slide rail (31) and the slide rail (31) abuts against an inner wall of the T-shaped slide groove.

10. The bar clamping mechanism as recited in claim 1, characterized in that the drive assembly (4) comprises:

the piston of the cylinder (41) is vertically upwards arranged;

the fixed seat (42) is arranged right below the guide seat (1), and the air cylinder (41) is arranged on the fixed seat (42);

and a floating joint (43) arranged at the top end of the piston of the cylinder (41) and used for installing and fixing the lifting bracket (3).