Quick replacement mechanism for steel wire clamping head

Abstract

The utility model discloses a quick replacement mechanism for a steel wire clamping head, and relates to the technical field of spring forming machines. According to the technical scheme, the quick replacement mechanism for the steel wire clamping head comprises a transmission shaft, the transmission shaft is driven by a motor, a fixed shell is installed on the transmission shaft, a transmission claw is installed in the fixed shell, a connecting frame is installed on the transmission shaft, and four sets of rockers are evenly and rotationally installed on the connecting frame and rotationally connected with the transmission claw; a fixing block is installed in the fixing shell, an abutting block is installed on the fixing block in a sliding mode, the abutting block is connected with the transmission claw in a sliding mode, and a containing block is installed in the fixing shell and used for bearing the steel wire clamping claw. The utility model aims to provide the quick replacement mechanism for the steel wire clamping head, so that the effect of quickly replacing, repairing and maintaining the steel wire clamping head is achieved.

Description

Technical Field

[0001] This utility model discloses a quick-change mechanism for a wire clamping head, which relates to the field of spring forming machine technology. Background Technology

[0002] The wire clamping head is a crucial component of a spring forming machine, primarily used to clamp and secure the wire, ensuring precise control over its movement and deformation during processing. Spring forming machines are commonly used to produce various types of springs, such as compression springs, extension springs, and torsion springs. In spring production lines, the wire clamping head ensures stable positioning and clamping of the wire, facilitating bending and stretching operations. In other wire forming and processing industries, the clamping head similarly serves to fix and guide the wire, ensuring processing accuracy and product quality. The wire clamping head is a critical component of spring forming machines, directly impacting wire control, processing accuracy, and production efficiency during the forming process. With continuous technological advancements, clamping head designs have become increasingly diverse, adapting to different wire specifications and processing requirements to guarantee the quality and production efficiency of springs and other products.

[0003] Wire clamps come in various types depending on their design and function. When processing different springs, the wire clamps need to be replaced or maintained frequently. The traditional method of replacing wire clamps is to fix them with bolts. On current spring processing production lines, this requires manual replacement by operators, which is troublesome and time-consuming. Therefore, a quick-change mechanism for wire clamps is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a quick replacement mechanism for wire clamp heads, so as to achieve the effect of quick replacement, maintenance and repair of wire clamp heads.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-change mechanism for a wire clamping head, comprising a drive shaft, characterized in that: the drive shaft is driven by a motor, a fixed housing is mounted on the drive shaft, a drive claw is mounted inside the fixed housing, a connecting frame is mounted on the drive shaft, four sets of rockers are evenly rotatably mounted on the connecting frame, the rockers are rotatably connected to the drive claw, a fixed block is mounted inside the fixed housing, an abutment block is slidably mounted on the fixed block, the abutment block is slidably connected to the drive claw, and a placement block is mounted inside the fixed housing for receiving the wire clamping claw.

[0006] Preferably, four sets of transmission claws are evenly installed in a circumferential shape inside the fixed housing.

[0007] Preferably, the fixing block is installed at the oblique center of the two sets of transmission claws.

[0008] Preferably, a horizontal sliding surface is provided at the lower end connection between the transmission claw and the fixed housing, and a vertical limiting surface is provided below the horizontal sliding surface.

[0009] Preferably, the contact block is trapezoidal in shape, the transmission claw is trapezoidal in shape, the trapezoidal surface on the contact block contacts the trapezoidal surface on the transmission claw, and the fixed block is provided with a slide rail, and the contact block is slidably connected to the slide rail.

[0010] Preferably, a telescopic chuck is provided at the outer end of the contact block, and a telescopic chuck is provided at the upper end of the transmission claw.

[0011] Preferably, a limit block is provided at the connection between the side of the transmission claw and the fixed housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By driving the transmission shaft downward with a motor, the connecting frame pulls the rocker arm to tilt inward towards the center of the shaft. This causes the rocker arm to first pull the transmission claw inward. Then, when the rocker arm is perpendicular to the horizontal plane, the transmission claw moves downward. The transmission claw drives the contact block to move closer to the central axis. When the transmission claw moves inward, it pushes the contact block inward in a straight line. When the transmission claw moves downward, it pushes the contact block inward through the contacting inclined surface until it contacts and clamps the outer surface of the wire clamping head. When the wire clamping head is removed, the transmission shaft can be moved upward by controlling the motor to release the contact block from the wire clamping head, thus achieving the function of quick disassembly and installation. Attached Figure Description

[0013] Figure 1 A schematic diagram of a quick-change mechanism for a wire clamp head;

[0014] Figure 2 for Figure 1 A schematic diagram of the internal structure of a quick-change mechanism for a wire clamp head;

[0015] The following are the labeling elements in the figure:

[0016] 1. Drive shaft; 2. Fixed housing; 21. Horizontal sliding surface; 22. Vertical limiting surface; 23. Limiting block; 3. Drive claw; 4. Connecting frame; 5. Rocker arm; 6. Abutting block; 7. Fixing block; 71. Slide rail; 8. Placement block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples:

[0019] like Figure 1 As shown, a quick-change mechanism for a wire clamping head includes a drive shaft 1, which is driven by a motor. A fixed housing 2 is mounted on the drive shaft 1, and a drive claw 3 is installed inside the fixed housing 2. Four sets of drive claws 3 are evenly installed in a circular shape inside the fixed housing 2.

[0020] The drive shaft 1 is driven by a motor to rise or fall linearly. The fixed housing 2 is fixedly installed on the spring forming machine. The space formed between the four sets of drive claws 3 is used to place the wire clamping claws.

[0021] like Figure 2 As shown, a connecting frame 4 is installed on the drive shaft 1, and four sets of rocker arms 5 are evenly rotatably installed on the connecting frame 4. The rocker arms 5 are rotatably connected to the drive claws 3. A fixing block 7 is installed inside the fixed housing 2. The fixing block 7 is installed at the oblique center of the two sets of drive claws 3. An abutting block 6 is slidably installed on the fixing block 7. The abutting block 6 is slidably connected to the drive claws 3. A placement block 8 is installed inside the fixed housing 2 to receive the wire clamping claws.

[0022] During operation, the motor drives the transmission shaft 1 to move downward, which in turn drives the connecting frame 4 to pull the rocker arm 5 to tilt towards the inner axis. When the rocker arm 5 is not in operation, it is in an inclined state. The downward pull of the transmission shaft 1 causes the rocker arm 5 to change from an inclined state to a state perpendicular to the horizontal plane. This causes the rocker arm 5 to first pull the transmission claw 3 to move inward. Then, when the rocker arm 5 is perpendicular to the horizontal plane, the transmission claw 3 moves downward. The transmission claw 3 drives the contact block 6 to move closer to the central axis until the contact block 6 contacts the surface of the wire clamp head and clamps it. When the wire clamp head is removed, the motor controls the transmission shaft 1 to move upward, which causes the contact block 6 to release the wire clamp head.

[0023] When the transmission claw 3 is driven by the rocker arm 5, there are two movement states: inward and downward. Therefore, a horizontal sliding surface 21 is provided at the connection between the transmission claw 3 and the lower end of the fixed housing 2. A vertical limiting surface 22 is provided below the horizontal sliding surface 21. When the transmission claw 3 moves inward, its lower end moves horizontally along the horizontal sliding surface 21. When the transmission claw 3 moves downward, its side moves along the vertical limiting surface 22. The setting of the horizontal sliding surface 21 and the vertical limiting surface 22 makes the connection between the transmission claw 3 and the fixed housing 2 tighter, and the movement is limited to linear movement, making the structure more stable.

[0024] When the transmission claw 3 moves downward or inward, it will push the abutment block 6 inward. To achieve this process, the abutment block 6 is trapezoidal in shape, the transmission claw 3 is trapezoidal in shape, and the trapezoidal surface on the abutment block 6 is in contact with the trapezoidal surface on the transmission claw 3. The fixing block 7 is provided with a slide 71, and the abutment block 6 is slidably connected to the slide 71. The slide 71 limits the movement direction of the abutment block 6, which only moves in a straight line inward. When the transmission claw 3 moves inward, it pushes the abutment block 6 to move in a straight line inward. When the transmission claw 3 moves downward, it pushes the abutment block 6 inward through the contacting inclined surface until it abuts the outer surface of the clamping wire clamping head.

[0025] The outer end of the contact block 6 is provided with a telescopic clamp (not shown in the figure), and the upper end of the transmission claw 3 is provided with a telescopic clamp (not shown in the figure). The telescopic clamp is designed so that both the transmission claw 3 and the contact block 6 can clamp and fix the wire clamp head, making the mechanism adaptable to a wide range of situations.

[0026] A limit block 23 is provided at the connection between the side of the transmission claw 3 and the fixed housing 2 to limit the lateral movement direction of the transmission claw 3, making the structure more stable.

[0027] In summary, by driving the transmission shaft 1 downwards via the motor, the connecting frame 4 pulls the rocker arm 5 inwards towards the center of the shaft. This causes the rocker arm 5 to first pull the transmission claw 3 inwards. Then, when the rocker arm 5 is perpendicular to the horizontal plane, the transmission claw 3 moves downwards, causing the transmission claw 3 to move the contact block 6 closer to the central axis. As the transmission claw 3 moves inwards, it pushes the contact block 6 inwards in a linear motion. When the transmission claw 3 moves downwards, it pushes the contact block 6 inwards through the contacting inclined surface until it contacts and clamps the outer surface of the wire clamping head. When removing the wire clamping head, the transmission shaft 1 is moved upwards via the motor, causing the contact block 6 to release the wire clamping head, thus achieving quick disassembly and installation.

[0028] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. A quick change mechanism for a wire gripper head, comprising a drive shaft (1), characterized in that: The drive shaft (1) is driven by a motor. A fixed housing (2) is installed on the drive shaft (1). A transmission claw (3) is installed inside the fixed housing (2). A connecting frame (4) is installed on the drive shaft (1). Four sets of rockers (5) are evenly rotated on the connecting frame (4). The rockers (5) are rotatably connected to the transmission claw (3). A fixed block (7) is installed inside the fixed housing (2). An abutment block (6) is slidably installed on the fixed block (7). The abutment block (6) is slidably connected to the transmission claw (3). A placement block (8) is installed inside the fixed housing (2) to receive the wire clamping claw.

2. A quick change mechanism for a steel wire gripping head according to claim 1, characterized in that: The transmission claws (3) are evenly installed in a circular shape within the fixed housing (2) in four sets.

3. A quick change mechanism for a steel wire gripping head according to claim 1, characterized in that: The fixing block (7) is installed at the two oblique centers of the transmission claw (3).

4. The quick change mechanism for a wire gripper head according to claim 1, wherein: A transverse sliding surface (21) is provided at the lower end connection between the transmission claw (3) and the fixed housing (2), and a vertical limiting surface (22) is provided below the transverse sliding surface (21).

5. A quick change mechanism for a steel wire gripping head according to claim 1, characterized in that: The abutment block (6) is trapezoidal in shape, the transmission claw (3) is trapezoidal in shape, the trapezoidal surface on the abutment block (6) is in contact with the trapezoidal surface on the transmission claw (3), the fixing block (7) is provided with a slide (71), and the abutment block (6) is slidably connected to the slide (71).

6. A quick change mechanism for a steel wire gripping head according to claim 1, characterized in that: The outer end of the contact block (6) is provided with a telescopic clamp, and the upper end of the transmission claw (3) is provided with a telescopic clamp.

7. A quick change mechanism for a steel wire gripping head according to claim 1, characterized in that: A limit block (23) is provided at the connection between the side of the transmission claw (3) and the fixed housing (2).

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