Special clamping jaw for hydraulic cylinder head

Abstract

This application relates to the field of hydraulic cylinder head machining technology, and discloses a special gripper for hydraulic cylinder heads, including a two-jaw hydraulic chuck, a gripper lifting block slidably connected to the top of the two-jaw hydraulic chuck, and hydraulic grippers mounted on the top of the two-jaw hydraulic chuck. The hydraulic gripper includes a third screw, a support seat, a first screw, and a nut. The support seat is fixed to the top of the two-jaw hydraulic chuck by the third screw. The first screw is installed inside the support seat and is used for lateral positioning of the outer circle of the hydraulic cylinder head to be machined. The nut is threaded to one end of the first screw. A green claw is installed on the inner side of the gripper lifting block for vertical positioning of the outer circle of the hydraulic cylinder head to be machined. The outer side of the gripper lifting block is a slope with an inclination angle of 30 degrees, and two sets of threaded holes are opened at the bottom. This special gripper for hydraulic cylinder heads allows for more precise clamping of hydraulic cylinder heads by adjusting the positions of the first screw and the green claw, and can clamp and fix hydraulic cylinder head products of different sizes and thicknesses.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder head machining technology, specifically a special gripper for hydraulic cylinder heads. Background Technology

[0002] Cylinder heads are important hydraulic transmission components for engineering machinery, with broad market prospects and high demand. However, they require high machining precision and complex processing techniques, including high requirements for coaxiality, runout, symmetry, and perpendicularity. To meet the high precision requirements of cylinder head machining, correct, efficient, and stable clamping is the key to the turning of these products.

[0003] When using hydraulic cylinder grippers to hold cylinder head products, the following problems exist:

[0004] 1. Forgings of varying thicknesses are often used in older turning fixtures. These fixtures typically use one of the forging surfaces as a positioning reference, with a clamping block on top. The forging is then fixed to the fixture by the torque of a screw for turning. Without rough machining of the positioning surface, the varying thicknesses of the forgings significantly impact the clamping process during turning. This results in uneven thicknesses, leading to inconsistent product quality. When dealing with forgings of varying thicknesses, the only option is to selectively machine and continuously adjust the height of the positioning surface of the fixture, resulting in a low machining rate.

[0005] 2. The gripper operation is cumbersome, the tooling is not versatile, and the turning tooling must be changed every time a cylinder head product is switched, which is inefficient and too dependent on the skill level of the employees; the product processing quality cannot be well guaranteed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this application provides a special gripper for hydraulic cylinder heads, which has the advantages of precise and stable gripping of cylinder heads and solves the problem of insufficient gripping precision.

[0007] To achieve the above objectives, this application provides the following technical solution: a special gripper for hydraulic cylinder heads, comprising a two-jaw hydraulic chuck, a gripper lifting block slidably connected to the top of the two-jaw hydraulic chuck, and a hydraulic gripper mounted on the top of the two-jaw hydraulic chuck. The hydraulic gripper includes a third screw, a support seat, a first screw, and a nut. The support seat is fixed to the top of the two-jaw hydraulic chuck by the third screw. The first screw is installed inside the support seat and is used for laterally positioning the outer circle of the hydraulic cylinder head to be processed. The nut is threadedly connected to one end of the first screw. A raw claw is installed on the inner side of the gripper lifting block for vertically positioning the outer circle of the hydraulic cylinder head to be processed. The outer side of the gripper lifting block is a slope with an inclination angle of 30 degrees, and two sets of threaded holes are opened at the bottom.

[0008] By adjusting the position of the screw and the claw, the gripper can more accurately clamp the hydraulic cylinder head, enabling the clamping and fixing of hydraulic cylinder head products of different sizes and thicknesses.

[0009] Preferably, a second screw is installed on one side of the claw raising block, and the second screw extends through the claw raising block into the interior of the claw.

[0010] Preferably, the bottom of the two-jaw hydraulic chuck is equipped with a spindle flange connecting plate.

[0011] Preferably, the jaw raising block is connected to the drive mechanism inside the two-jaw hydraulic chuck.

[0012] In summary, this application includes at least one of the following beneficial effects:

[0013] 1. This hydraulic cylinder head special gripper is no longer affected by the uneven thickness of the forging material, increasing the daily output to 90 pieces, improving efficiency by 3 times, and significantly improving product quality.

[0014] 2. This hydraulic cylinder head special gripper is highly versatile. One set of grippers can meet the machining needs of more than twenty similar cylinder head products. When changing products, only the positioning core needs to be replaced and the screw on the positioning block needs to be slightly adjusted, thus improving machining efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the gripper in this application;

[0016] Figure 2 This is a top view schematic diagram of the hydraulic gripper structure of this application;

[0017] Figure 3 This is a front view schematic diagram of the hydraulic gripper structure of this application;

[0018] Figure 4 This is a schematic diagram of the claw-raising block structure in this application;

[0019] Figure 5 This is a top view of the claw-raising block structure of this application.

[0020] The components include: 1. Hydraulic gripper; 2. Two-jaw hydraulic chuck; 3. Spindle flange connecting plate; 4. Screw 1; 5. Nut; 6. Screw 2; 7. Green jaw; 8. Screw 3; 9. Support seat; 10. Jaw extension block. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Please see Figure 1-5 A special gripper for hydraulic cylinder heads includes a two-jaw hydraulic chuck 2, a gripper lifting block 10 slidably connected to the top of the two-jaw hydraulic chuck 2, and a hydraulic gripper 1 mounted on the top of the two-jaw hydraulic chuck 2. The hydraulic gripper 1 includes a screw 8, a support seat 9, a screw 4, and a nut 5. The support seat 9 is fixed to the top of the two-jaw hydraulic chuck 2 by the screw 8. The screw 4 is installed inside the support seat 9 and is used for lateral positioning of the outer circle of the hydraulic cylinder head to be processed. The nut 5 is threaded to one end of the screw 4. A raw gripper 7 is installed on the inner side of the gripper lifting block 10. A screw 6 is installed on one side of the gripper lifting block 10. The screw 6 extends through the gripper lifting block 10 into the raw gripper 7 and is used for vertical positioning of the outer circle of the hydraulic cylinder head to be processed. The outer side of the gripper lifting block 10 is a slope with an inclination angle of 30 degrees. Two sets of threaded holes are opened at the bottom. The gripper lifting block 10 is connected to the drive mechanism inside the two-jaw hydraulic chuck 2.

[0023] Through the above technical solution, the mechanical chuck is a device on the machine tool that achieves workpiece clamping and positioning by radial movement of the jaws. It consists of a chuck body, movable jaws and a drive mechanism. The back is connected to the spindle through a flange. The drive mechanism drives the movable jaws to move radially to clamp the workpiece.

[0024] When using the gripper, the operator can rotate screw 4, which extends or shortens inside the support 9. When screw 4 moves to the appropriate length, it is fixed by nut 5. At the same time, the position of the extended jaw 7 is adjusted, and the extended jaw 7 can slide inside the jaw lifting block 10. After the extended jaw 7 is adjusted to the appropriate position, screw 6 is used to fix the extended jaw 7. The drive mechanism drives the jaw lifting block 10 to slide on the two-jaw hydraulic chuck 2, thereby clamping the hydraulic cylinder head and allowing the hydraulic cylinder head to be processed stably.

[0025] The claw 7 is fixed to the claw extension block 10 by a positioning pin.

[0026] By adjusting the positions of screw 4 and jaw 7, the jaws can clamp the hydraulic cylinder head more precisely, and can clamp and fix hydraulic cylinder head products of different sizes and thicknesses, with high versatility; the support seat 9 is fixed to the two-jaw hydraulic chuck 2 by screw 8.

[0027] The outer side of the claw-raising block 10 is a slope with an inclination angle of 30 degrees.

[0028] The functions of the inclined plane are: first, to reduce the weight of the tooling; second, the 30-degree inclined plane can effectively prevent iron filings from getting tangled; third, to avoid the tool holder, making it easier for the cutting tool to move in and out at close range; and fourth, to utilize the principle of the stable structure of the triangle, so that the jaws can maintain stability and reliability when holding the parts.

[0029] The threaded hole at the bottom of the jaw lifting block 10 can be bolted to the drive mechanism on the two-jaw hydraulic chuck 2.

[0030] Specifically, the bottom of the two-jaw hydraulic chuck 2 is equipped with a spindle flange connecting plate 3.

[0031] By using the above technical solution, the spindle flange connecting plate 3 is bolted together, allowing the two-jaw hydraulic chuck 2 to be installed in the predetermined position.

[0032] When in use, when screw 4 moves to a suitable length and is fixed by nut 5, the position of the claw 7 is adjusted. The claw 7 can slide inside the claw raising block 10. After the claw 7 is adjusted to a suitable position, screw 6 is used to fix the claw 7. Adjusting the position of screw 4 and claw 7 allows the gripper to clamp the hydraulic cylinder head more accurately. It can clamp and fix hydraulic cylinder head products of different sizes and thicknesses.

[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special gripper for hydraulic cylinder heads, comprising a two-jaw hydraulic chuck (2), a gripper raising block (10) slidably connected to the top of the two-jaw hydraulic chuck (2), and a hydraulic gripper (1) mounted on the top of the two-jaw hydraulic chuck (2), characterized in that: The hydraulic gripper (1) includes screw three (8), support seat (9), screw one (4) and nut (5). The support seat (9) is fixed to the top of the two-jaw hydraulic chuck (2) by screw three (8). Screw one (4) is installed inside the support seat (9) for lateral positioning of the outer circle of the hydraulic cylinder head to be processed. The nut (5) is threaded to one end of screw one (4). The gripper lifting block (10) has a raw claw (7) installed on the inner side for vertical positioning of the outer circle of the hydraulic cylinder head to be processed. The outer side of the gripper lifting block (10) is a slope with an inclination angle of 30 degrees and two sets of threaded holes are opened at the bottom.

2. The hydraulic cylinder head gripper according to claim 1, characterized in that: A screw two (6) is installed on one side of the claw raising block (10), and the screw two (6) extends through the claw raising block (10) into the interior of the raw claw (7).

3. The hydraulic cylinder head gripper according to claim 1, characterized in that: The bottom of the two-jaw hydraulic chuck (2) is equipped with a spindle flange connecting plate (3).

4. A hydraulic cylinder head gripper according to claim 1, characterized in that: The jaw lifting block (10) is connected to the drive mechanism inside the two-jaw hydraulic chuck (2).

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