Needling clamping jaw

Abstract

The utility model discloses a needling clamping jaw which comprises a first air cylinder, a second air cylinder, a needling assembly and a pressing block, and the pressing block and the first air cylinder are both installed on the second air cylinder. The needling assembly comprises a first connecting rod assembly, a second connecting rod assembly and a plurality of sets of needles, each set of needles comprises a left arc needle and a right arc needle which are opposite left and right and staggered front and back, the left arc needle is fixedly installed on the first connecting rod assembly, and the right arc needle is installed on the second connecting rod assembly; the pressing block is provided with a horizontal part located below the needling assembly, a needling needle receding through hole corresponding to each needling needle is formed in the horizontal part of the pressing block, and the first connecting rod assembly and the second connecting rod assembly are hinged and connected with the first air cylinder. The arc-shaped pricking needles are adopted, and the left arc pricking needle and the right arc pricking needle are close to each other after being inserted into the foam, so that the foam is supported, and the foam is prevented from falling off.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to a needle-punching gripper. Background Technology

[0002] Foam is small in size and has an uneven surface, making it difficult to pick up and attach to the surface of an object using an adsorption device. Existing technologies use manual methods to pick up the foam and attach it to the object's surface, which is inefficient. Patent CN 211680841U discloses a needle-punched foam attaching machine, which effectively improves foam picking efficiency; however, this solution uses needles inserted vertically into the foam, posing a risk of the foam falling off. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a needle-punched gripper, which mainly solves the problem of foam easily falling off the gripper.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A needle-punching gripper includes a first cylinder, a second cylinder, a needle-punching assembly, and a pressure block, wherein the pressure block and the first cylinder are both mounted on the second cylinder;

[0006] The needle assembly includes a first link assembly, a second link assembly, and several sets of needles. Each set of needles includes a left-arc needle and a right-arc needle that are opposite to each other and staggered front and back. The left-arc needle is fixedly installed on the first link assembly, and the right-arc needle is installed on the second link assembly.

[0007] The pressure block has a horizontal portion located below the needle assembly, and each needle has a needle clearance through hole on the horizontal portion of the pressure block;

[0008] The first link assembly and the second link assembly are hinged and both connected to the first cylinder. The first cylinder drives the first link assembly and the second link assembly to cause the left and right arc needles of each group of needles to selectively approach or separate in the left-right direction.

[0009] As a preferred embodiment, the first linkage assembly includes a first linkage, a first movable block, and a plurality of first drive blocks. The upper end of the first linkage is hinged to a first cylinder, the lower end of the first linkage is hinged to the first movable block, and the plurality of first drive blocks are all hinged to the first movable block. A right arc needle is mounted on each first drive block.

[0010] The second linkage assembly includes a second linkage, a second movable block, and multiple second drive blocks. The upper end of the second linkage is hinged to the piston rod of the first cylinder, and the lower end of the second linkage is hinged to the second movable block. The multiple second drive blocks are all hinged to the second movable block, and a left-hand arc needle is installed on each second drive block.

[0011] As a preferred embodiment, each first drive block has an arc-shaped groove on the side near the second drive block for mounting a right arc needle, with the upper end of the right arc needle accommodated in the arc-shaped groove and the lower end exposed below the first drive block;

[0012] Each second drive block has an arc-shaped groove on the side closest to the first drive block for mounting a left arc needle. The upper end of the left arc needle is accommodated in the arc-shaped groove, and the lower end is exposed below the second drive block.

[0013] As a preferred embodiment, the upper left end of each first drive block and the upper right end of a second drive block are hinged by a pivot, and the first and second drive blocks rotate synchronously around the pivot.

[0014] As a preferred embodiment, the lower end of the first movable block is hinged to three first driving blocks, and each of the three first driving blocks is equipped with a right arc needle. The lower end of the second movable block is hinged to three second driving blocks, and each of the three second driving blocks is equipped with a left arc needle.

[0015] The present invention has the following beneficial effects:

[0016] The foam is placed under the pressure block. The second cylinder drives the pressure block and the first cylinder downwards. The pressure block holds the foam in place to prevent it from shifting. Then, the first cylinder drives the left and right arc-shaped needles downwards. Each needle passes through its corresponding needle clearance hole and inserts into the foam. Simultaneously, the lower ends of the left and right arc-shaped needles move closer together, clamping the foam block. The use of arc-shaped needles, with the left and right arc-shaped needles moving closer together after insertion, provides support for the foam, thus preventing it from falling off.

[0017] When piercing the foam with a needle, first use a pressure block to hold the foam in place to prevent it from shifting. When it's necessary to release the foam, the pressure block remains in place until the needle is completely detached from the foam. Then, the second cylinder drives the pressure block upwards to move away from the foam, preventing deformation or displacement of the foam during detachment. The pressure block is used to grip and release the foam, preventing deformation and displacement, and contributing to the stability of the foam's position. Attached Figure Description

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the needle-punching gripper according to an embodiment of this utility model;

[0019] Figure 2 This is the second three-dimensional structural schematic diagram of the needle-punching gripper according to an embodiment of this utility model;

[0020] Figure 3 This is a partial exploded view of the needle-punching gripper of this utility model embodiment;

[0021] Figure 4This is a partial structural schematic diagram of the needle-punching gripper according to an embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 4 As shown, this embodiment discloses a needle-punching gripper for loading and unloading objects made of foam or similar materials. Its structure includes a first cylinder 1, a second cylinder 2, a needle-punching assembly, and a pressure block 3. The pressure block 3 and the first cylinder 1 are both mounted on the second cylinder 2. The needle-punching assembly includes a first connecting rod assembly, a second connecting rod assembly, and several sets of needles. Each set of needles includes a left-arc needle 4 and a right-arc needle 5 that are opposite each other and staggered front to back. The left-arc needle 4 is fixedly mounted on the first connecting rod assembly, and the right-arc needle 5 is mounted on the second connecting rod assembly. The pressure block 3 has a horizontal portion located below the needle-punching assembly, and a needle clearance through-hole 6 is provided on the horizontal portion of the pressure block 3 corresponding to each needle. The first connecting rod assembly and the second connecting rod assembly are hinged and both connected to the first cylinder 1. The first cylinder 1 drives the first connecting rod assembly and the second connecting rod assembly to selectively bring the left-arc needle 4 and the right-arc needle 5 of each set of needles together or separate them in the left-right direction.

[0025] The foam is placed under the pressure block 3. The second cylinder 2 drives the pressure block 3 and the first cylinder 1 to move downwards. The pressure block 3 presses down on the foam to prevent it from shifting. Then, the first cylinder 1 drives the left arc needle 4 and the right arc needle 5 to move downwards. The left arc needle 4 and the right arc needle 5 each pass through the corresponding needle clearance hole 6 and insert into the foam. At the same time, the lower ends of the left arc needle 4 and the right arc needle 5 move closer to each other, thus clamping the foam block. When it is necessary to release the foam, the first cylinder 1 drives the left arc needle 4 and the right arc needle 5 to move upwards. The left arc needle 4 and the right arc needle 5 retract completely above the pressure block 3. The foam is blocked by the pressure block 3 and thus disengages from the left arc needle 4 and the right arc needle 5, thereby releasing the foam.

[0026] When piercing the foam with a needle, the pressure block 3 is used to hold the foam in place to prevent it from shifting. When it is necessary to release the foam, the pressure block 3 remains in place until the needle is completely detached from the foam. Then, the second cylinder 2 drives the pressure block 3 to move upwards and away from the foam, preventing the foam from deforming or shifting when the needle detaches. The pressure block 3 is used to grip and release the foam to prevent deformation and shifting, thus contributing to the stability of the foam's position.

[0027] This embodiment uses arc-shaped needles. The left arc needle 4 and the right arc needle 5 are inserted into the foam and brought close together to support the foam. If a straight needle is inserted vertically into the foam, although the foam can be picked up, it is easy for the foam to fall off the vertical needle, posing a risk of falling. Compared to a straight needle that is inserted and removed vertically, using two arc-shaped needles with staggered insertion effectively prevents the foam from falling off.

[0028] In a specific structure, the first linkage assembly includes a first linkage 7, a first movable block 8, and multiple first drive blocks 9. The upper end of the first linkage 7 is hinged to the first cylinder 1, and the lower end of the first linkage 7 is hinged to the first movable block 8. All of the multiple first drive blocks 9 are hinged to the first movable block 8, and each first drive block 9 is equipped with a right-arc needle 5. Similarly, the second linkage 10 assembly includes a second linkage 10, a second movable block 11, and multiple second drive blocks 12. The upper end of the second linkage 10 is hinged to the piston rod of the first cylinder 1, and the lower end of the second linkage 10 is hinged to the second movable block 11. All of the multiple second drive blocks 12 are hinged to the second movable block 11, and each second drive block 12 is equipped with a left-arc needle 4. In other embodiments, the structures of the first linkage assembly and the second linkage 10 assembly are not limited to these. The first linkage assembly may include multiple first linkages 7 and multiple first movable blocks 8, and the second linkage 10 assembly may include multiple second linkages 10 and multiple second movable blocks 11.

[0029] Each first drive block 9 is hinged to a second drive block 12 and cooperates to drive a set of needles. Specifically, the upper left end of each first drive block 9 and the upper right end of each second drive block 12 are hinged through a pivot 13. In this embodiment, the first cylinder 1 has a retractable piston rod. When the piston rod of the first cylinder 1 extends or retracts, the first movable block 8 and the second movable block 11 move up and down. The first drive block 9 and the second drive block 12 rotate synchronously around the pivot 13, thereby bringing the lower ends of the left arc needle 4 and the right arc needle 5 closer together or further apart, thus achieving clamping or releasing. Because the first drive block 9 and the second drive block 12 are hinged, the left arc needle 4 and the right arc needle 5 can move synchronously, avoiding a situation where the left arc needle 4 and the right arc needle 5 move sequentially. Asynchronous movement of the left arc needle 4 and the right arc needle 5 may cause the foam to be subjected to a force to the left or backward first, leading to displacement of the foam due to uneven force in the left and right directions.

[0030] In this embodiment, the acupuncture assembly has three sets of needles. Specifically, three first drive blocks 9 are hinged to the lower end of the first movable block 8, and each of the three first drive blocks 9 is equipped with a right-arc needle 5. Three second drive blocks 12 are hinged to the lower end of the second movable block 11, and each of the three second drive blocks 12 is equipped with a left-arc needle 4. In other embodiments, the number of needles is not limited to three sets; it can be less than three or more sets, depending on the size and weight of the foam. The three first drive blocks 9 are connected to the same first movable block 8, which helps the three first drive blocks 9 to maintain synchronous operation.

[0031] In this embodiment, each first driving block 9 has an arc-shaped groove on the side near the second driving block 12 for installing a right arc-shaped needle 5. The upper end of the right arc-shaped needle 5 is accommodated in the arc-shaped groove, and the lower end is exposed below the first driving block 9. Each second driving block 12 has an arc-shaped groove on the side near the first driving block 9 for installing a left arc-shaped needle 4. The upper end of the left arc-shaped needle 4 is accommodated in the arc-shaped groove, and the lower end is exposed below the second driving block 12. The first driving block 9 and the second driving block 12 are in contact and hinged together, thereby preventing the left arc-shaped needle 4 and the right arc-shaped needle 5 from detaching from the arc-shaped groove. By installing the left arc-shaped needle 4 and the right arc-shaped needle 5 in this way, when the needle needs to be replaced, the needle can be pulled out by pulling downwards, and the new needle can be inserted into the arc-shaped groove from the lower right to the upper right to install the needle. There is no need to disassemble other parts, which facilitates the replacement of the needle.

[0032] In other embodiments, the installation method of the needle and the drive block is not limited to this; the needle and the drive block can be fixed by welding, riveting, interference fit with pins, adhesive bonding, etc. In this embodiment, the first drive block 9 is located behind the second drive block 12. In other embodiments, the first drive block 9 can also be in front of the second drive block 12.

[0033] In this embodiment, the left-arc needle 4 and the right-arc needle 5 are needles of the same shape and size, but they are positioned differently, one convex to the left and the other to the right, hence the different names used to distinguish them. The left-arc needle 4 and the right-arc needle 5 have the same shape and structure, and can be interchanged, which helps reduce the types of materials and facilitates material management. In other embodiments, the left-arc needle 4 and the right-arc needle 5 may also be needles with different shapes (e.g., curvature) and / or sizes (e.g., length or diameter).

[0034] In this embodiment, the second cylinder 2 is a slide cylinder, and the first cylinder 1 is directly or indirectly connected to the slide of the second cylinder 2. Similarly, the pressure block 3 is directly or indirectly connected to the slide of the second cylinder 2. In other embodiments, the second cylinder 2 can also be replaced by a hydraulic cylinder, an electric push rod, a push rod cylinder, etc. The first cylinder 1 can also be replaced by a hydraulic cylinder, an electric push rod, a slide cylinder, etc.

[0035] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A needle-punching gripper, characterized in that... It includes a first cylinder, a second cylinder, a needle-punching assembly, and a pressure block, with the pressure block and the first cylinder both mounted on the second cylinder; The needle assembly includes a first link assembly, a second link assembly, and several sets of needles. Each set of needles includes a left-arc needle and a right-arc needle that are opposite to each other and staggered front and back. The left-arc needle is fixedly installed on the first link assembly, and the right-arc needle is installed on the second link assembly. The pressure block has a horizontal portion located below the needle assembly, and each needle has a needle clearance through hole on the horizontal portion of the pressure block; The first link assembly and the second link assembly are hinged and both connected to the first cylinder. The first cylinder drives the first link assembly and the second link assembly to cause the left and right arc needles of each group of needles to selectively approach or separate in the left-right direction.

2. The needle-punching gripper according to claim 1, characterized in that, The first link assembly includes a first link, a first movable block and a plurality of first drive blocks. The upper end of the first link is hinged to a first cylinder, the lower end of the first link is hinged to the first movable block, and the plurality of first drive blocks are all hinged to the first movable block. A right arc needle is installed on each first drive block. The second linkage assembly includes a second linkage, a second movable block, and multiple second drive blocks. The upper end of the second linkage is hinged to the piston rod of the first cylinder, and the lower end of the second linkage is hinged to the second movable block. The multiple second drive blocks are all hinged to the second movable block, and a left-hand arc needle is installed on each second drive block.

3. The needle-punching gripper according to claim 2, characterized in that, Each first drive block has an arc-shaped groove on the side near the second drive block for installing a right arc needle. The upper end of the right arc needle is accommodated in the arc-shaped groove, and the lower end is exposed below the first drive block. Each second drive block has an arc-shaped groove on the side closest to the first drive block for mounting a left arc needle. The upper end of the left arc needle is accommodated in the arc-shaped groove, and the lower end is exposed below the second drive block.

4. The needle-punching gripper according to claim 2, characterized in that, The upper left end of each first drive block and the upper right end of each second drive block are hinged by a pivot, and the first and second drive blocks rotate synchronously around the pivot.

5. The needle-punching gripper according to claim 2, characterized in that, The lower end of the first movable block is hinged to three first drive blocks, and each of the three first drive blocks is equipped with a right arc needle. The lower end of the second movable block is hinged to three second drive blocks, and each of the three second drive blocks is equipped with a left arc needle.

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