The clamping jaws open and sink mechanism

Abstract

This utility model discloses a clamping jaw opening and lowering mechanism, relating to the field of wire processing technology. It aims to solve the technical problems of current clamping jaw lowering mechanisms requiring independent cylinders, resulting in high costs and inconvenient installation. The mechanism includes an installation mechanism, a clamping mechanism, and a lowering component disposed between them. The installation mechanism includes an installation box with an installation cavity. The clamping mechanism includes an installation shell and a cylinder disposed within the installation cavity. The top and bottom surfaces of the installation shell are open. Rotating rods are symmetrically arranged within the installation shell, and clamping jaws are rotatably mounted on the rotating rods. The lowering component includes a lowering seat, a lowering slide rod, and a spring. The lowering slide rod is slidably disposed within the installation box. This utility model eliminates the need for an independent lowering cylinder; a single cylinder, in conjunction with the lowering component, can simultaneously achieve the clamping jaw's "opening-lowering" and "closing-rising reset," reducing costs and installation difficulty, and offering a compact and space-saving structure.

Description

Technical Field

[0001] This utility model relates to the field of wire processing technology, and more specifically, to a wire clamping claw opening and sinking mechanism. Background Technology

[0002] The wire clamping jaw opening and lowering mechanism is mainly used in automated processing scenarios where interference between the clamps and the wire / workpiece needs to be avoided, while efficiently completing loading / unloading or position switching. Its core function is to solve the problem of "clamps blocking the way when open." In wire harness automation equipment (such as terminal crimping machines and wire harness welding machines), when the equipment needs to feed new wire into the processing station or remove processed wire, the wire clamps first open and lower, providing an unobstructed passage for the wire and preventing the clamps from scraping the wire surface or hindering the feeding mechanism. When the wire reaches the desired position, the clamps rise and clamp the wire. Secondly, in multi-process integrated production lines (such as integrated wire cutting-stripping-end crimping equipment), the wire clamps need to move from one station to another. At this point, the opening and lowering of the gripper prevents collisions with other components (such as cutting tools and positioning blocks) during movement, and also avoids interference between the carried wire and surrounding structures. Finally, when it is necessary to adjust the angle or position of the wire (such as changing the wire from a horizontal to a vertical position), the gripper will first open and lower to release the constraint on the wire, and then cooperate with other mechanisms (such as a rotary axis and translation module) to complete the posture adjustment. After the adjustment is completed, the gripper rises again and clamps the wire, proceeding to the next process.

[0003] Currently, the lowering action of wire grippers typically requires a separate lowering drive source, most commonly an additional cylinder. When the gripper needs to perform both "opening" and "lowering" actions simultaneously, two cylinders are often needed for separate control. This design directly increases equipment costs. Furthermore, the additional lowering cylinder requires more space, posing challenges to mechanical design, installation, and debugging in compact layouts. Therefore, we propose a wire gripper opening and lowering mechanism. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a clamping claw opening and sinking mechanism to solve the technical problems of the current clamping claw sinking requiring an independent cylinder, which is costly and inconvenient to install.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a wire clamping claw opening and sinking mechanism, including an installation mechanism, a wire clamping mechanism, and a sinking component disposed between the installation mechanism and the wire clamping mechanism. The installation mechanism includes an installation box with an installation cavity inside. The wire clamping mechanism includes an installation shell and a cylinder disposed in the installation cavity. The top and bottom surfaces of the installation shell are open. Rotating rods are symmetrically arranged inside the installation shell, and clamps are rotatably mounted on the rotating rods. The sinking component includes a sinking seat, a sinking slide rod, and a spring. The sinking slide rod is slidably disposed inside the installation box.

[0006] Preferably, the cylinder includes a piston rod, the end of which is provided with a mounting seat, and a connecting rod is symmetrically and rotatably mounted on the mounting seat, the end of which is rotatably connected to a gripper.

[0007] Preferably, the mounting box has symmetrically arranged positioning cavities, the inner walls of the positioning cavities have symmetrically arranged limiting grooves, the limiting grooves have positioning sleeves, and the sinking slide rod is located inside the positioning sleeves.

[0008] Preferably, a positioning rod is provided at the bottom of the positioning cavity, the sinking slide rod is tubular, and the bottom of the sinking slide rod is sleeved on the outside of the positioning rod.

[0009] Preferably, the sinking base is symmetrically arranged inside the mounting housing, the sinking slide rod is arranged at the bottom of the sinking base, the spring is sleeved on the outside of the sinking slide rod, and the spring is located between the mounting housing and the sinking base.

[0010] Preferably, the mounting box includes a front box and a rear box, and semi-circular grooves are formed inside the front box and the rear box. The mounting cavity and the positioning cavity are formed by merging the semi-circular grooves, and the front box and the rear box are connected by bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model designs a sliding rod and spring structure for the sinking component. The elastic reset function of the spring enables the gripper to rise automatically, ensuring that the gripper can quickly reset to the clamping position when closed, improving the continuity and efficiency of wire processing. No additional sinking drive source is required. The gripper's "opening-sinking" and "closing-rising reset" actions can be realized simultaneously with just a single cylinder and spring. The overall structure is compact. Eliminating the independent sinking cylinder saves installation space and is more suitable for wire harness automation processing scenarios with compact equipment layouts. It reduces the risk of spatial interference with other components, significantly reduces equipment procurement and manufacturing costs and installation difficulty, and solves the current problem of high cost and inconvenient installation caused by the need for an independent cylinder for gripper sinking.

[0012] 2. This utility model also designs a positioning sleeve and positioning rod structure. The sinking component adopts a double guide design. The positioning sleeve plays a preliminary guiding and wear-resistant protection role for the sinking slide rod. The nesting cooperation between the tubular sinking slide rod and the positioning rod further restricts radial sway, ensuring that the jaw sinking process runs along a straight trajectory and avoiding interference problems caused by jaw offset. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the sinking and clamping mechanism of this utility model; Figure 4 This is a cross-sectional view of the mounting box of this utility model; Figure 5 This is a schematic diagram of one usage state of the present invention.

[0014] The following are the labels in the diagram: 100, Installation mechanism; 101, Installation box; 102, Installation cavity; 103, Positioning cavity; 104, Limiting groove; 105, Positioning rod; 106, Positioning sleeve; 200, Wire clamping mechanism; 201, Cylinder; 202, Piston rod; 203, Mounting seat; 204, Mounting shell; 205, Connecting rod; 206, Rotating rod; 207, Gripper; 300, Sinking assembly; 301, Sinking seat; 302, Sinking slide bar; 303, Spring. Detailed Implementation

[0015] like Figures 1 to 5 As shown, this utility model relates to a wire clamping claw opening and sinking mechanism, which includes an installation mechanism 100, a wire clamping mechanism 200, and a sinking component 300 disposed between the installation mechanism 100 and the wire clamping mechanism 200. The installation mechanism 100 includes an installation box 101, which has an installation cavity 102. The wire clamping mechanism 200 includes an installation shell 204 and a cylinder 201 disposed in the installation cavity 102. The top and bottom surfaces of the installation shell 204 are open. Rotating rods 206 are symmetrically disposed inside the installation shell 204. Claws 207 are rotatably disposed on the rotating rods 206. The sinking component 300 includes a sinking seat 301, a sinking slide rod 302, and a spring 303. The sinking slide rod 302 is slidably disposed inside the installation box 101. This invention eliminates the need for a separate sinking cylinder. A single cylinder 201, in conjunction with the sinking component 300, can simultaneously achieve the "opening-sinking" and "closing-rising reset" of the gripper 207, reducing costs and installation difficulty. The compact structure saves space and is suitable for compact environments. Dual guidance ensures stable operation of the gripper 207, avoids interference, and improves processing efficiency.

[0016] Specifically, cylinder 201 includes piston rod 202, with a mounting base 203 at the end of piston rod 202. A connecting rod 205 is symmetrically and rotatably mounted on the mounting base 203, and the end of the connecting rod 205 is rotatably connected to gripper 207. The linear extension and retraction of piston rod 202 drives the mounting base 203 to move synchronously, and the mounting base 203 transmits power to gripper 207 via connecting rod 205, enabling gripper 207 to open and close stably around rotating rod 206, ensuring the accuracy and synchronicity of the wire clamping action.

[0017] Furthermore, the mounting box 101 is symmetrically provided with positioning cavities 103, and the inner wall of the positioning cavity 103 is symmetrically provided with limiting grooves 104. A positioning sleeve 106 is provided in the limiting groove 104, and the sinking slide rod 302 is located in the positioning sleeve 106. The positioning cavity 103 provides a dedicated installation and sliding space for the sinking slide rod 302. The limiting groove 104 can fix and limit the positioning sleeve 106 to prevent the positioning sleeve 106 from shifting. The positioning sleeve 106 is made of wear-resistant material, which can reduce frictional loss when the sinking slide rod 302 slides, while ensuring that the sinking slide rod 302 always slides in a straight line, improving the stability of the sinking action.

[0018] It is worth noting that a positioning rod 105 is provided at the bottom of the positioning cavity 103, and the sinking slide rod 302 is tubular, with its bottom sleeved on the outside of the positioning rod 105. The nested cooperation between the tubular sinking slide rod 302 and the positioning rod 105 forms a double guiding structure, further restricting the sliding trajectory of the sinking slide rod 302, preventing radial swaying during its up-and-down movement, and ensuring the consistency of the sinking assembly 300's operation.

[0019] It is worth noting that the recessed seat 301 is symmetrically arranged inside the mounting housing 204, the recessed slide rod 302 is located at the bottom of the recessed seat 301, and the spring 303 is sleeved on the outside of the recessed slide rod 302, with the spring 303 located between the mounting box 101 and the recessed seat 301. The recessed seat 301, as a key component connecting the mounting housing 204 and the recessed slide rod 302, can transfer the force from the mounting housing 204 to the recessed slide rod 302 when the gripper 207 opens. At this time, the spring 303 will be compressed, and the gripper 207 will also be in a recessed state while opening. When the gripper 207 on the piston rod 202 closes, the recessed seat 301 will gradually lose the pressure from the mounting housing 204. At this time, the spring 303 releases potential energy to push the recessed seat 301 and the recessed slide rod 302 upward, achieving an automatic reset function without the need for an additional drive source.

[0020] It is worth noting that the mounting box 101 includes a front box and a rear box, both of which have semi-circular grooves. The mounting cavity 102 and the positioning cavity 103 are formed by merging the semi-circular grooves, and the front box and the rear box are connected by bolts. The split-type mounting box 101 design facilitates the assembly of internal parts. During assembly, components such as the cylinder 201 and the sliding rod 302 can be placed into the semi-circular grooves of the front and rear boxes respectively, and then the front and rear boxes can be spliced ​​and fixed by bolts. This greatly reduces the installation difficulty of the complex internal structure and facilitates the maintenance and repair of the equipment.

[0021] Working principle: This embodiment provides a clamping jaw opening and lowering mechanism. When the equipment is started and the clamping action needs to be performed, the cylinder 201 in the mounting cavity 102 of the mounting mechanism 100 is first controlled to work. The piston rod 202 of the cylinder 201 extends outward, driving the mounting seat 203 connected to its end to move upward synchronously. Since the connecting rod 205 is symmetrically rotatably mounted on the mounting seat 203, and the end of the connecting rod 205 is rotatably connected to the clamping jaw 207 in the mounting shell 204 of the clamping mechanism 200, the clamping jaw 207... The mounting base 203 is rotatably mounted inside the mounting housing 204 via the rotating rod 206. Therefore, the movement of the mounting base 203 transmits power to the gripper 207 via the connecting rod 205, causing the gripper 207 to rotate around the rotating rod 206. At this time, the gripper 207 gradually closes, completing the clamping operation of the wire. When it is necessary to release the wire and lower the gripper 207 to avoid interference, the piston rod 202 of the control cylinder 201 retracts. The piston rod 202 drives the mounting base 203 to move downwards. The mounting base 203 is pulled downwards via the connecting rod 205. The movable gripper 207 rotates in the opposite direction around the rotating rod 206, causing the gripper 207 to gradually open. During the opening process of the gripper 207, the mounting shell 204 will be subjected to a downward force from the piston rod 202. Since the mounting shell 204 is symmetrically provided with a sinker 301, and the bottom of the sinker 301 is connected to a sinker slide rod 302, the sinker slide rod 302 is slidably disposed in the positioning sleeve 106 of the positioning cavity 103 inside the mounting box 101. At the same time, the bottom of the sinker slide rod 302 is sleeved on the outside of the positioning rod 105 at the bottom of the positioning cavity 103. Furthermore, a spring 303 is sleeved on the outer side of the sliding rod 302, located between the mounting box 101 and the sinking seat 301. Therefore, the downward force of the mounting shell 204 is transmitted to the sinking seat 301, causing the sinking seat 301 to push the sliding rod 302 downward along the guide direction of the positioning sleeve 106 and the positioning rod 105. At the same time, the spring 303 is compressed by the sinking seat 301, thereby driving the mounting shell 204 and the gripper 207 to sink as a whole, providing an unobstructed passage for the entry and exit of wires or the operation of other parts of the equipment.When the wire needs to be clamped again, the piston rod 202 of the control cylinder 201 extends again, causing the gripper 207 to close. At this time, the downward force of the mounting shell 204 on the sinker 301 gradually disappears, and the compressed spring 303 releases its elastic potential energy, pushing the sinker 301 upward. The sinker 301 drives the sinker slide rod 302 to slide upward along the positioning sleeve 106 and the positioning rod 105, thereby causing the mounting shell 204 and the gripper 207 to rise and reset as a whole, so that the gripper 207 can accurately clamp the wire. This cycle is repeated to achieve the opening and closing of the wire clamping claw. The opening, lowering, closing, and rising reset actions can be completed without an additional lowering drive source, solely through the cooperation of a single cylinder 201 and spring 303. The mounting box 101 adopts a split design with a front and rear housing. Its internal mounting cavity 102 and positioning cavity 103 are formed by a semi-circular groove, facilitating initial parts assembly and subsequent maintenance. The dual guide structure of the positioning sleeve 106 and positioning rod 105 ensures the stability of the lowering slide bar 302, preventing displacement of the gripper 207 during lowering.

[0022] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A wire clamping claw opening and lowering mechanism, characterized in that, The device includes an installation mechanism (100) and a wire clamping mechanism (200), as well as a sinking assembly (300) disposed between the installation mechanism (100) and the wire clamping mechanism (200). The installation mechanism (100) includes an installation box (101) and an installation cavity (102) is provided inside the installation box (101). The wire clamping mechanism (200) includes an installation shell (204) and a cylinder (201) disposed in the installation cavity (102). The top and bottom surfaces of the installation shell (204) are open. Rotating rods (206) are symmetrically arranged inside the installation shell (204). A gripper (207) is rotatably disposed on the rotating rod (206). The sinking assembly (300) includes a sinking seat (301), a sinking slide rod (302), and a spring (303). The sinking slide rod (302) is slidably disposed inside the installation box (101).

2. The wire clamping claw opening and lowering mechanism according to claim 1, characterized in that, The cylinder (201) includes a piston rod (202), and a mounting seat (203) is provided at the end of the piston rod (202). A connecting rod (205) is symmetrically and rotatably mounted on the mounting seat (203), and the end of the connecting rod (205) is rotatably connected to the gripper (207).

3. The wire clamping claw opening and lowering mechanism according to claim 2, characterized in that, The mounting box (101) is symmetrically provided with positioning cavities (103), and the inner wall of the positioning cavity (103) is symmetrically provided with limiting grooves (104). The limiting grooves (104) are provided with positioning sleeves (106), and the sinking slide rod (302) is located in the positioning sleeves (106).

4. The clamping claw opening and lowering mechanism according to claim 3, characterized in that, The bottom of the positioning cavity (103) is provided with a positioning rod (105), and the sinking slide rod (302) is tubular, with the bottom of the sinking slide rod (302) sleeved on the outside of the positioning rod (105).

5. The wire clamping claw opening and lowering mechanism according to claim 4, characterized in that, The sinker (301) is symmetrically arranged inside the mounting shell (204), the sinker slide (302) is arranged at the bottom of the sinker (301), the spring (303) is sleeved on the outside of the sinker slide (302), and the spring (303) is located between the mounting box (101) and the sinker (301).

6. The clamping claw opening and lowering mechanism according to claim 5, characterized in that, The mounting box (101) includes a front box and a rear box. The front box and the rear box are provided with semi-circular grooves. The mounting cavity (102) and the positioning cavity (103) are formed by merging the semi-circular grooves. The front box and the rear box are connected by bolts.

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