A variable pitch wire clamping mechanism

Abstract

The present invention discloses a variable pitch wire clamping mechanism, which relates to the technical field of wire clamping mechanisms and includes: a double-acting cylinder, a parallel gripper, a pawl assembly and pawls. The parallel gripper is provided on one side of the double-acting cylinder, and two pawl assemblies are provided on the side of the parallel gripper away from the double-acting cylinder. A plurality of pawls are provided on the sides of the two pawl assemblies close to each other. The pawls are slidably arranged in the pawl assemblies and partially protrude from the pawl assemblies. It can clamp multiple wires at the same time; avoid wire clamping indentations; and can change the pitch in the wire clamping state to adjust the spacing of the clamped wires.

Description

Technical Field

[0001] The present invention relates to the technical field of wire clamping mechanisms, and particularly to a variable pitch wire clamping mechanism. Background Art

[0002] With the development of technology, industrial manipulators are increasingly widely used in automated production. How to design an end effector efficiently and at low cost to achieve the picking and placing of materials is of great significance to actual production. In actual production, sometimes it is necessary to both complete the grasping action of the material and change the pitch of the product during the handling of the product. For example, in the vibrating bowl feeder commonly used in automated equipment, the materials are closely arranged during the linear vibration of the vibrating bowl, while in the process carrier, in order to achieve the positioning of the materials, they are usually distributed at intervals. Therefore, it is necessary to change the object distance of the jaws, that is, a variable pitch mechanism needs to be applied.

[0003] Currently, the existing variable pitch wire clamping mechanism cannot meet the requirement of changing the distance between wires, making the subsequent processing very inconvenient. Summary of the Invention

[0004] The purpose of the present invention is to provide a variable pitch wire clamping mechanism to solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A variable pitch wire clamping mechanism includes a double-acting cylinder, a parallel gripper, a jaw plate assembly and jaws. The parallel gripper is provided on one side of the double-acting cylinder. Two jaw plate assemblies are provided on the side of the parallel gripper away from the double-acting cylinder. A plurality of jaws are provided on the sides of the two jaw plate assemblies close to each other. The jaws are slidably arranged in the jaw plate assembly and partially protrude from the jaw plate assembly.

[0007] Preferably, it further includes a linear guide rail, and the linear guide rail is provided on one side of the parallel gripper.

[0008] Preferably, it further includes a fixing plate, the fixing plate is connected to the double-acting cylinder, and one side of the fixing plate is connected to the parallel gripper.

[0009] Preferably, the gripper of the parallel gripper is detachably connected to the jaw plate assembly.

[0010] As a further preference, the gripper assembly includes a connecting rod. One end of the connecting rod is connected to the jaw, the double-acting cylinder is connected to the linear guide rail, and the other end of the connecting rod is connected to the slider of the linear guide rail.

[0011] Preferably, one end of each jaw away from the jaw plate assembly is provided with a V-shaped opening.

[0012] As a further preference, a circular groove is formed at one end of each of the claw pieces away from the claw piece assembly.

[0013] As a further preference, a soft material is clamped in each of the circular grooves.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] The variable pitch wire clamping mechanism of the present application can clamp multiple wires at the same time; it can avoid wire clamping indentations; and it can change the pitch and adjust the spacing of the clamped wires in the wire clamping state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first schematic structural view of the variable pitch wire clamping mechanism of the present invention;

[0017] Figure 2 is the second schematic structural view of the variable pitch wire clamping mechanism of the present invention;

[0018] Figure 3 is Figure 1 the enlarged schematic structural view at position A;

[0019] Figure 4 is the schematic structural view of the claw piece assembly of the variable pitch wire clamping mechanism of the present invention.

[0020] In the figure: 1, double-acting cylinder; 2, parallel gripper; 3, claw piece assembly; 4, claw piece; 5, linear guide rail; 6, fixed plate; 7, mounting assembly; 71, base plate; 72, cover plate; 8, guiding assembly; 81, guiding column; 82, guiding bar; 83, sealing plate; 9, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that, as terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or positional relationship indicated thereby is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, as terms such as "first", "second", "third" appear, they are only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Figure 1 is the first structural schematic diagram of the variable pitch wire clamping mechanism of the present invention, Figure 2 is the second structural schematic diagram of the variable pitch wire clamping mechanism of the present invention, Figure 3 is Figure 1 the enlarged structural schematic diagram located at A, Figure 4 is the structural schematic diagram of the claw piece assembly of the variable pitch wire clamping mechanism of the present invention. Please refer to Figures 1 to 4 as shown, which shows a preferred embodiment, showing a variable pitch wire clamping mechanism, including: a double-acting cylinder 1, a parallel gripper 2, a claw piece assembly 3, and claw pieces 4. A parallel gripper 2 is arranged on one side of the double-acting cylinder 1. Two claw piece assemblies 3 are arranged on the side of the parallel gripper 2 away from the double-acting cylinder 1. The parallel gripper 2 is a standard part, and the grippers on the parallel gripper 2 are detachably connected to the claw piece assembly 3. The parallel gripper 2 drives the opening and closing of its two grippers, thereby driving the movement of the claw piece assembly 3 connected to the grippers to open and close, so that the claw piece assembly 3 can grasp the wire. A number of claw pieces 4 are arranged on the sides of the two claw piece assemblies 3 close to each other. The claw pieces 4 are slidably arranged in the claw piece assembly 3 and partially protrude from the claw piece assembly 3. The grippers of the parallel gripper 2 move, thereby driving the change of the distance between the claw pieces 4. The change of the distance drives the opening and closing of the claw piece assembly 3 and the clamping and releasing of the wire by the claw pieces 4.

[0025] Furthermore, as a preferred embodiment, it further includes a linear guide rail 5. A linear guide rail 5 is arranged on one side of the parallel gripper 2. A linear guide rail 5 is used for transition between the claw piece assembly 3 and the double-acting cylinder 1, so that the opening and closing action of the claw piece assembly 3 and the adjustment action of the distance between the claw pieces 4 do not interfere with each other. It further includes a fixing plate 6. The fixing plate 6 is connected to the double-acting cylinder 1, and one side of the fixing plate 6 is connected to the parallel gripper 2. The fixing plate 6 is used to fix the parallel gripper 2. Installation holes are opened on the fixing plate 6, and bolts are installed through the installation holes to install the variable pitch wire clamping mechanism with other equipment. The double-acting cylinder 1 is connected to the linear guide rail 5, and the claw piece assembly 3 is connected to the slider of the linear guide rail 5.

[0026] Further, as a preferred embodiment, the pawl assembly 3 includes a mounting assembly 7 and a guiding assembly 8 disposed inside the mounting assembly 7. The guiding assembly 8 includes guiding columns 81 and guiding bars 82. Four guiding columns 81 are provided inside the mounting assembly 7, and the four guiding columns 81 are arranged in parallel. Two avoidance holes and two mounting holes are formed in the pawl 4, and the four guiding columns 81 pass through the avoidance holes and the mounting holes to connect a plurality of pawls 4. The guiding bar 82 is disposed on one side of the pawl 4, and a limiting groove is formed in the guiding bar 82. A limiting post is provided on one side of each pawl 4, and the limiting post is slidably connected to the limiting groove. A plurality of bushings are respectively sleeved on the two guiding columns 81, and the bushings are disposed between the inner wall of the mounting hole and the guiding columns 81. The mounting assembly 7 includes a base plate 71 and a cover plate 72. The base plate 71 is provided at the upper end of the pawl 4, and a cover plate 72 is provided on each side of the base plate 71. The cover plates 72 are disposed on both sides of the pawl 4. A sealing plate 83 is provided at one end of the cover plate 72, and an end plate is provided at the other end. Among them, the end plate is fixedly connected to the base plate 71 and the two cover plates 72, the upper end of the sealing plate 83 is slidably connected to the base plate 71, and both sides of the sealing plate 83 are slidably connected to the two cover plates 72. A connecting rod 9 is provided at one end of the sealing plate 83 away from the pawl 4, and the connecting rod 9 passes through the sealing plate 83 and is connected to the pawl 4.

[0027] Further, as a preferred embodiment, the linear guide rail 5 includes a guide rail and a slider. The connecting rod 9 is connected to the slider. When the parallel gripper 2 drives the pawl assembly 3 to move up and down, the pawl assembly 3 will drive the connecting rod 9 and passively slide along the length direction of the guide rail under the action of the slider, so as to change the distance between the pawls 4 between the two pawl assemblies 3. When the double-acting cylinder 1 works, the telescopic rod of the double-acting cylinder 1 expands and contracts to drive the linear guide rail 5 to move, so that the connecting rod 9 pulls or presses the pawl 4, so that the distance between a plurality of pawls 4 in each pawl assembly 3 changes. Among them, the provided guiding bar 82 can limit the distance between two adjacent pawls 4.

[0028] Further, as a preferred embodiment, one end of each pawl 4 away from the pawl assembly 3 is provided with a V-shaped opening. A circular groove is formed in the bottom wall of one end of each pawl 4 away from the pawl assembly 3. A soft material is clamped in each circular groove. Such a design has the function of automatic centering and can reduce the generation of wire indentation at the same time. The distance between the pawls 4 on the pawl assembly 3 can be adjusted.

[0029] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be able to realize that all equivalent replacements and obvious changes made by using the description and illustration content of the present invention should be included in the protection scope of the present invention.

Claims

1. A variable pitch wire clamping mechanism, characterized in that, It includes a double-acting cylinder, a parallel gripper, a gripper blade assembly and gripper blades. The parallel gripper is provided on one side of the double-acting cylinder. Two gripper blade assemblies are provided on the side of the parallel gripper away from the double-acting cylinder. A number of gripper blades are provided on the sides of the two gripper blade assemblies close to each other. The gripper blades are slidably arranged in the gripper blade assembly and partially protrude from the gripper blade assembly. It further includes a linear guide rail. The linear guide rail is provided on one side of the parallel gripper. The linear guide rail includes a guide rail and a slider. The gripper blade assembly includes a connecting rod. One end of the connecting rod is connected to the gripper blade. The double-acting cylinder is connected to the linear guide rail. The other end of the connecting rod is connected to the slider of the linear guide rail. The gripper blade assembly further includes a mounting assembly and a guiding assembly arranged inside the mounting assembly. The guiding assembly includes a guiding column and a guiding bar. The guiding bar is arranged on one side of the gripper blade. A limiting groove is formed on the guiding bar. A limiting post is arranged on one side of each gripper blade. The limiting post is slidably connected to the limiting groove. The mounting assembly includes a base plate and a cover plate. The base plate is arranged at the upper end of the gripper blade. A cover plate is arranged on each side of the base plate. The cover plates are arranged on both sides of the gripper blade. A sealing plate is arranged at one end of the cover plate. The upper end of the sealing plate is slidably connected to the base plate. Both sides of the sealing plate are slidably connected to the two cover plates. A connecting rod is arranged at one end of the sealing plate away from the gripper blade. The connecting rod passes through the sealing plate and is connected to the gripper blade. When the parallel gripper drives the gripper blade assembly to move up and down, the gripper blade assembly will drive the connecting rod and passively slide along the length direction of the guide rail under the action of the slider, so as to change the distance between the gripper blades between the two gripper blade assemblies. When the double-acting cylinder works, the telescopic rod of the double-acting cylinder expands and contracts to drive the linear guide rail to move, so that the connecting rod pulls or squeezes the gripper blade, causing the distance between a number of gripper blades in each gripper blade assembly to change.

2. The variable pitch wire clamping mechanism according to claim 1, characterized in that, It further includes a fixing plate. The fixing plate is connected to the double-acting cylinder. One side of the fixing plate is connected to the parallel gripper.

3. The variable pitch wire clamping mechanism according to claim 1, wherein, The gripper of the parallel gripper is detachably connected to the gripper blade assembly.

4. The variable pitch wire clamping mechanism according to claim 1, wherein, One end of each gripper blade away from the gripper blade assembly is provided with a V-shaped opening.

5. The variable pitch wire clamping mechanism according to claim 4, characterized in that, A circular groove is formed at one end of each gripper blade away from the gripper blade assembly.

6. The variable pitch wire clamping mechanism according to claim 5, characterized in that, A soft material is clamped in each circular groove.

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