Locking mechanism of fixed-length baffle

Abstract

The utility model belongs to the technical field of bar fixed-length shearing auxiliary equipment, and mainly relates to a locking mechanism of a fixed-length baffle, which comprises a box body, a supporting seat, a driving piece and two holding arms arranged in bilateral symmetry, the box body is used for being fixed on a movable seat of a suspension, and a mounting cavity is formed in the box body; the supporting seat is fixed in the mounting cavity; the two embracing arms are rotationally assembled on the supporting base, and the opposite sides of the two embracing arms are connected with clamping jaws. The driving part is provided with a fixing part and a telescopic part capable of stretching out and drawing back along a straight line, the telescopic part is hinged to one holding arm, the fixing part is hinged to the other holding arm, and when the telescopic part extends, the two holding arms are driven to rotate relatively so as to clamp the guide rail through the clamping jaw, namely, the fixed-length baffle is fixed, and the fixed-length baffle can be fixed to all positions of the fixed-length machine; the clamping jaw is driven to clamp the guide rail only after the sizing baffle moves to a set position, so that the bar shearing precision is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for bar cutting to length, and mainly relates to a locking mechanism for a length baffle. Background Technology

[0002] The main function of the bar cutting machine in the bar mill is to cut steel bars to the required length according to customer specifications, typically ranging from 6 to 15 meters. The operation of the cutting machine is generally as follows: First, the required bar length is set. Then, the position of the cutting baffle is adjusted according to the desired length. The cutting baffle slides along the guide rail to the designated position and descends onto the roller conveyor. The guide rail is fixed to the suspension on the cutting machine. The feeding device feeds the bars until all the ends of the bars reach the cutting baffle, where they are stopped and fixed. Then, the cutting device (such as a blade or saw) is activated to press and cut the bars. Finally, the discharge device outputs the cut bars. During the cutting and conveying process, the bars frequently impact the cutting baffle. The impact force on the cutting baffle can cause it to move, resulting in unstable cutting lengths.

[0003] Normally, the fixed-length baffle relies on pins to fix the moving seat in the position determined by the suspension. The suspension has multiple pin holes spaced apart along the length of the guide rail for the pins to be inserted. However, there are gaps between adjacent pin holes. If the fixed-length baffle needs to be fixed in the gaps, this structure cannot meet the requirement. The fixed-length baffle can only be fixed in the pin holes around the gaps, resulting in poor cutting accuracy. Utility Model Content

[0004] This utility model provides a locking mechanism for a fixed-length baffle to solve the problem in the prior art where the pin hole cannot meet all the fixed positions of the fixed-length baffle, resulting in poor bar shearing accuracy.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A locking mechanism for a fixed-length baffle includes a housing, a support base, a drive unit, and two symmetrically arranged clamping arms. The housing is fixed to a movable seat of a suspension to move back and forth on a guide rail with the movable seat, and the housing has a vertically connected mounting cavity. The support base is fixed inside the mounting cavity. The two clamping arms are rotatably mounted on the support base, and each of the two clamping arms has a clamping jaw for clamping the guide rail on its opposite side, with the clamping jaw extending out of the housing. The drive unit has a fixed part and a telescopic part that can extend and retract in a straight line. The telescopic part is hinged to one of the clamping arms, and the fixed part is hinged to the other clamping arm. When the telescopic part extends, it drives the two clamping arms to rotate relative to each other to clamp the guide rail through the clamping jaw.

[0007] Beneficial effects: After the moving seat reaches its position, the fixed-length baffle descends onto the roller conveyor. The two clamping arms are driven to rotate by the driving component. The two clamping arms drive the corresponding grippers to move so that the two grippers clamp the guide rail on the suspension, thus fixing the fixed-length baffle. This utility model can satisfy all fixed positions of the fixed-length baffle on the fixed-length machine. It only needs to drive the grippers to clamp the guide rail after the fixed-length baffle moves to the set position, which improves the bar cutting accuracy. Moreover, the two clamping arms use the same driving component, which makes the structure compact and saves space.

[0008] Furthermore, each of the two arms has a slider at its lower end, and each support base has an arc-shaped groove that matches the slider. The slider and the arc-shaped groove are slidably assembled.

[0009] Beneficial effects: The slider and the arc-shaped groove are slidably assembled. The arc-shaped groove provides the slider with a precise movement trajectory in the arc direction, enabling the arm to achieve smooth and precise curved movement.

[0010] Furthermore, there are two support seats, and two hinge shafts are rotatably mounted between the two support seats. The two hinge shafts are symmetrically arranged in the left-right direction, and each arm is fixed on the corresponding hinge shaft.

[0011] Furthermore, each of the two arm arms has an arc-shaped side surface on its opposite side, and the axis of the cylinder containing the arc-shaped side surface coincides with the axis of the hinge axis to which the arm arm is connected.

[0012] Beneficial effect: The rounded side design makes the structure of the two arms compact and prevents them from colliding when they rotate.

[0013] Furthermore, the driving component is a hydraulic cylinder, the piston rod of the hydraulic cylinder forms the telescopic part, and the cylinder body of the hydraulic cylinder forms the fixed part.

[0014] Beneficial effects: Hydraulic cylinders can output powerful linear thrust or pull, easily handling this task; during operation, the piston's movement speed is relatively uniform, without speed fluctuations and shaking phenomena like some electric or pneumatic drives, making the arm rotate more smoothly.

[0015] Furthermore, the gripper is connected to a clamping block for clamping the guide rail.

[0016] Furthermore, a protective pad is connected to the clamping surface of the clamping block used to clamp the guide rail.

[0017] Beneficial effects: The protective pad prevents the clamping block from directly colliding with the guide rail, thus preventing wear on the guide rail.

[0018] Furthermore, the lower end of the arm is provided with a connecting frame, and the telescopic part and the fixed part are respectively connected to the corresponding connecting frame.

[0019] Furthermore, the connecting frame is a U-shaped frame.

[0020] Beneficial effect: The U-shaped frame facilitates the hinged installation of the arm and the drive component.

[0021] Furthermore, the arm is a crank arm structure. Attached Figure Description

[0022] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of a hydraulic cylinder.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Housing; 2. Hinge shaft; 3. Gripper; 4. Arm; 5. U-shaped frame; 6. Hydraulic cylinder; 7. Arc-shaped side; 8. Clamping block; 9. Protective pad; 10. Pin; 11. Piston rod; 12. Cylinder body. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] The following describes various non-limiting embodiments of this utility model. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Embodiment 1 of the locking mechanism for a fixed-length baffle provided by this utility model:

[0030] like Figure 1 As shown, a locking mechanism for a fixed-length baffle includes a housing 1, a support base, two gripping arms 4, two clamping claws 3, and a driving component.

[0031] like Figure 1As shown, in this embodiment, for ease of description, the height direction of the box 1 is defined as the up-down direction, the width direction of the box 1 is defined as the left-right direction, and the length direction of the box 1 is defined as the front-back direction.

[0032] like Figure 1 As shown, the rear end of the housing 1 is welded to the movable seat of the suspension. The housing 1 has an upper and lower connected mounting cavity. There are two support seats, namely a front support seat and a rear support seat. The front support seat is fixed on the front inner wall of the mounting cavity, and the rear support seat is fixed on the rear inner wall of the mounting cavity. Two hinge shafts 2 are rotatably assembled between the front support seat and the rear support seat. The two hinge shafts 2 extend in the front-back direction and are parallel and spaced apart in the left-right direction.

[0033] like Figure 1 As shown, the two clamping arms 4 are respectively connected to the corresponding hinge shafts 2. The clamping arms 4 adopt a crank arm structure and rotate with the hinge shafts 2. Each of the two clamping arms 4 has an arc-shaped side surface 7 on its opposite side. The axis of the cylinder on which the arc-shaped side surface 7 is located coincides with the axis of the hinge shaft 2 to which the clamping arm 4 is connected. The arc-shaped side surface 7 makes the structure of the two clamping arms 4 compact and prevents the two clamping arms 4 from colliding when rotating.

[0034] Two grippers 3 are fixed to the tops of the two clamping arms 4 respectively. Each gripper 3 is connected to a clamping block 8 for clamping the guide rail. A protective pad 9 is connected to the clamping surface of the clamping block 8 for clamping the guide rail. The protective pad 9 is set to prevent the clamping block 8 from directly colliding with the guide rail and to prevent the guide rail from wearing. The clamping blocks 8 move with the clamping arms 4 so that when the hinge shaft 2 rotates, the two clamping blocks 8 clamp the guide rail. The grippers 3 extend outside the housing 1 to avoid the housing 1 affecting the movement of the grippers 3. The clamping blocks 8 are located on the left and right sides of the guide rail to facilitate clamping and releasing the guide rail. The lower ends of the two clamping arms 4 are respectively provided with sliders. The front support and the rear support are both provided with arc-shaped sliding grooves adapted to the sliders. When the clamping arms 4 rotate, the sliders slide and the arc-shaped sliding grooves to ensure the stability of the rotation of the clamping arms 4.

[0035] like Figure 1 and Figure 2As shown, U-shaped frames 5 are welded to the bottom of both gripping arms 4. The driving component is located between the two U-shaped frames 5. In this embodiment, the driving component is a hydraulic cylinder 6. The piston rod 11 end of the hydraulic cylinder 6 is hinged to one of the two U-shaped frames 5 via a pin 10, and the cylinder body 12 end of the hydraulic cylinder 6 is hinged to the other of the two U-shaped frames 5 via a pin 10. The hydraulic cylinder 6 extends and retracts to clamp and release the clamping block 8 on the guide rail. The hydraulic cylinder 6 extends outside the housing 1, and both gripping arms 4 share the same hydraulic cylinder 6. Compared to each gripping arm 4 using a separate hydraulic cylinder 6, this method saves space and has a more compact structure. The hydraulic cylinder 6 is a CD series hydraulic cylinder 6. The CD series hydraulic cylinder 6 has a high working pressure bearing capacity, and this series of hydraulic cylinders 6 has various different cylinder diameter and rod diameter specifications, which can be flexibly applied to different types and scales of equipment. The specific model of the hydraulic cylinder 6 is CD25WE-125 / 90-60MⅠA.

[0036] The working process of this utility model is as follows:

[0037] In this invention, after the moving seat reaches its position, the fixed-length baffle descends onto the roller conveyor to stop the bar stock. The piston rod 11 of the hydraulic cylinder 6 extends, and the left clamping arm 4 rotates around the corresponding hinge axis 2 to make the left clamping block 8 press against the guide rail. At this time, the guide rail limits the left clamping arm 4. The piston rod 11 of the hydraulic cylinder 6 continues to extend. Since the left clamping arm 4 is limited and stopped by the guide rail, the right clamping arm 4 rotates around the corresponding hinge axis 2 to make the right clamping block 8 press against the guide rail, thus realizing the two clamping... Block 8 clamps and fixes the guide rail. Block 8 clamps the guide rail to fix the moving seat on the guide rail. The length-fixing baffle is located on the moving seat, so the length-fixing baffle is also fixed on the guide rail to fix the length-fixing baffle. Compared with using the pin 10 to insert into the corresponding pin 10 hole, this utility model is not limited by the spatial position of the pin 10 hole. It can meet all the fixed positions of the length-fixing baffle on the length-fixing machine. It is only necessary to drive the clamping block 8 to clamp the guide rail after the length-fixing baffle moves to the set position to improve the bar shearing accuracy.

[0038] Embodiment 2 of the locking mechanism for a fixed-length baffle provided by this utility model:

[0039] The main difference between this embodiment and Embodiment 1 is that, in Embodiment 1, the driving component is a hydraulic cylinder. In this embodiment, the driving component can also be a large pneumatic cylinder, as long as both ends of the large pneumatic cylinder are hinged to the two U-shaped frames respectively.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for a fixed-length baffle, characterized in that, It includes a housing, support base, drive unit, and two symmetrically arranged arm arms; The housing is used to be fixed on the movable seat of the suspension so that it can move back and forth on the guide rail with the movable seat, and the housing is provided with an installation cavity that is connected vertically. The support base is fixed inside the mounting cavity; Two clamping arms are rotatably mounted on the support base, and each of the two clamping arms has a clamping jaw for clamping the guide rail connected to its opposite side. The clamping jaw extends out of the box body. The drive unit has a fixed part and a telescopic part that can extend and retract in a straight line. The telescopic part is hinged to one of the clamping arms, and the fixed part is hinged to the other clamping arm. When the telescopic part extends, it drives the two clamping arms to rotate relative to each other so as to clamp the guide rail by means of the grippers.

2. The locking mechanism for a fixed-length baffle according to claim 1, characterized in that, The lower ends of the two arms are equipped with sliders, and each support base is equipped with an arc-shaped groove that matches the slider. The slider and the arc-shaped groove are slidably assembled.

3. The locking mechanism for a fixed-length baffle according to claim 2, characterized in that, The support base is provided in two parts, and two hinge shafts are rotatably assembled between the two support bases. The two hinge shafts are symmetrically arranged in the left-right direction, and each arm is fixed on the corresponding hinge shaft.

4. The locking mechanism for a fixed-length baffle according to claim 3, characterized in that, Each of the two arm arms has an arc-shaped side on its opposite side, and the axis of the cylinder containing the arc-shaped side coincides with the axis of the hinge axis to which the arm arm is connected.

5. The locking mechanism for a fixed-length baffle according to claim 4, characterized in that, The driving component is a hydraulic cylinder, with the piston rod of the hydraulic cylinder forming the telescopic part and the cylinder body of the hydraulic cylinder forming the fixed part.

6. The locking mechanism for a fixed-length baffle according to claim 5, characterized in that, The gripper is connected to a clamping block for clamping the guide rail.

7. The locking mechanism for a fixed-length baffle according to claim 6, characterized in that, The clamping surface of the clamping block for clamping the guide rail is connected to a protective pad.

8. A locking mechanism for a fixed-length baffle according to any one of claims 1-7, characterized in that, The lower end of the arm is provided with a connecting frame, and the telescopic part and the fixed part are respectively connected to the corresponding connecting frame.

9. The locking mechanism for a fixed-length baffle according to claim 8, characterized in that, The connecting frame is a U-shaped frame.

10. A locking mechanism for a fixed-length baffle according to any one of claims 3-7, characterized in that, The arm is a crank arm structure.

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