A high-precision hydraulic cylinder tooling fixture and its operation method

Abstract

This invention discloses a high-precision hydraulic cylinder tooling fixture and its operating method, belonging to the field of machining technology. The high-precision hydraulic cylinder tooling fixture includes a tooling table and a hydraulic cylinder locking plate, which is mounted above the tooling table. Multiple concentric grippers are arranged around the hydraulic cylinder locking plate. A hydraulic drive cylinder is located on one side of the bottom of the tooling table and is connected to the tooling table via a push-position frame. A hydraulic push rod shaft is installed inside the hydraulic drive cylinder. To solve the problem that clamping hydraulic cylinders requires adjustment and clamping from four directions separately, and each gripper needs independent control, resulting in a cumbersome process, this invention uses a single hydraulic structure to simultaneously control multiple concentric grippers to complete the clamping operation, making it faster and more efficient than previous technologies.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a high-precision hydraulic cylinder tooling fixture and its operating method. Background Technology

[0002] Fixtures are process devices used to quickly fasten workpieces during machining, keeping the machine tool, cutting tool, and workpiece in the correct relative position, thereby ensuring the precision of the workpiece. Existing tooling fixtures have relatively limited functions and cannot clamp and fix workpieces of different shapes.

[0003] Chinese patent publication number CN210255220U discloses a high-precision machining tooling fixture. This high-precision machining tooling fixture has multiple functions and can clamp and fix different workpieces without changing the fixture, thus avoiding wasting time, improving work efficiency, and eliminating the need to prepare different fixtures, thereby reducing costs.

[0004] In the aforementioned patent, the clamping structure requires adjusting and clamping the hydraulic cylinder from four directions when performing clamping operations, and each clamping cylinder needs to be independently controlled, making the process quite cumbersome. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision hydraulic cylinder tooling fixture and its operating method. Through a set of hydraulic structures, multiple concentric claws can be controlled simultaneously to complete the clamping and holding operation. This is faster and more effective than previous technologies and can solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-precision machining cylinder tooling fixture, including a tooling processing table and a cylinder locking disc, wherein the cylinder locking disc is installed above the tooling processing table, and multiple concentric grippers are arranged around the cylinder locking disc; a hydraulic drive cylinder is arranged on one side of the bottom of the tooling processing table, the hydraulic drive cylinder is connected to the tooling processing table through a push frame, a hydraulic push rod is arranged inside the hydraulic drive cylinder, one end of the hydraulic push rod is provided with a push rod swing shaft, a concentric turntable is arranged at the bottom of the tooling processing table, and a truss is arranged below the concentric turntable.

[0007] Preferably, the truss is provided with lifting rings at both ends, and the truss is connected to the tooling processing table through the lifting rings. The middle section of the truss is provided with a central connecting shaft, and the concentric turntable is rotatably connected to the truss through the central connecting shaft.

[0008] Preferably, the outer surface of the concentric turntable is provided with a concentric groove, which is configured as an arc-shaped structure, and the push rod swing shaft is rotatably connected to the concentric turntable via a rotating shaft.

[0009] Preferably, a tray is provided below the cylinder locking disc, and two straightening and positioning frames are provided on one side of the cylinder locking disc. The tray and the straightening and positioning frames are connected by bolts. The outer surface of the straightening and positioning frame is provided with a nut shaft hole, and a rotating rod is provided inside the nut shaft hole. One end of the rotating rod is provided with a push rod, and the rotating rod is rotatably connected to the nut shaft hole through an internal thread.

[0010] Preferably, the outer surface of the cylinder lock disc is provided with a support sleeve, and rubber pads are provided around the support sleeve. The rubber pads are connected to the cylinder lock disc through slots. A guide post is provided between the tray and the cylinder lock disc, and a spring support rod is provided between the guide posts. The tray is connected to the tooling processing table through the spring support rod.

[0011] Preferably, the concentric claw includes a bracket and a hook, the hook and the bracket are connected by bolts, a concentric sliding shaft is provided below one end of the support shaft, the support shaft is slidably connected to the concentric sliding groove through the concentric sliding shaft, and locking frames are provided on both sides of the support shaft, the bracket is connected to the support shaft through the locking frames.

[0012] Preferably, a slide is provided between the bracket and the support fixed shaft, the slide is connected to the tooling processing table by bolts, the directional rail below the slide is connected to the support fixed shaft by bolts, and the support fixed shaft is slidably connected to the slide through the directional rail.

[0013] This invention also provides another technical solution: an operation method for a high-precision machining cylinder tooling fixture, comprising the following steps:

[0014] Step 1: Place the cylinder structure to be processed vertically above the cylinder lock plate. The rubber pad shaft on the surface of the cylinder lock plate can provide support for the bottom of the cylinder. After adjusting the position, start the hydraulic drive cylinder.

[0015] Step 2: The hydraulic drive cylinder retracts the hydraulic push rod, and the push rod swing shaft at the front end of the hydraulic push rod drives the concentric turntable to rotate clockwise. The concentric groove on the surface of the concentric turntable closes the support axis at the center of the tooling processing table.

[0016] Step 3: As the support axis moves, the concentric claws on the outside of the cylinder locking plate will also move towards the center to complete the clamping operation of the cylinder. After the cylinder completes the machining operation, the hydraulic drive cylinder pushes out the hydraulic push rod, and the concentric turntable rotates counterclockwise. At this time, the concentric claws expand outward to release the clamping.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the hydraulic drive cylinder retracts the hydraulic push rod, and the push rod swing shaft at the front end of the hydraulic push rod drives the concentric turntable to rotate clockwise. The concentric sliding groove on the surface of the concentric turntable closes the support fixed axis to the center of the tooling processing table. As the support fixed axis moves, the concentric claw on the outside of the cylinder locking plate also moves towards the center to complete the clamping operation of the cylinder. After the cylinder completes the processing operation, the hydraulic drive cylinder pushes out the hydraulic push rod, and the concentric turntable rotates counterclockwise. At this time, the concentric claw expands outward to release the clamping. Through a set of hydraulic structures, multiple concentric claws can be controlled to complete the clamping and holding operation at the same time, which is faster and more effective than previous technologies.

[0019] 2. In this invention, the hydraulic cylinder structure is placed vertically above the hydraulic cylinder lock plate. The rubber pad shaft on the surface of the hydraulic cylinder lock plate can provide support for the bottom of the hydraulic cylinder. At the same time, the rubber pad shaft can also prevent wear between the hydraulic cylinder lock plate and the hydraulic cylinder workpiece. The hydraulic cylinder lock plate, together with the bottom tray structure and the tooling processing table, are elastic structures. When the hydraulic cylinder lock plate is subjected to pressure from the hydraulic cylinder or external pressure, the spring support rod at the bottom of the tray can retract to prevent damage to the hydraulic cylinder lock plate and the tooling processing table due to pressure. Attached Figure Description

[0020] Figure 1 This is the overall front view of the present invention;

[0021] Figure 2 This is an overall side view of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall exploded structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the hydraulic cylinder lock disc structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the tooling processing table structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the support fixed-axis structure of the present invention.

[0026] In the diagram: 1. Tooling processing table; 2. Concentric claw; 3. Supporting fixed axis; 4. Hydraulic cylinder locking plate; 5. Correction and positioning frame; 6. Hydraulic drive cylinder; 101. Truss; 102. Concentric turntable; 1011. Lifting ring; 1012. Central connecting shaft; 1021. Concentric slide groove; 201. Bracket; 202. Hook; 301. Concentric sliding shaft; 302. Directional track; 303. Slide seat; 304. Locking frame; 401. Support sleeve; 402. Rubber pad shaft; 403. Pallet; 4031. Guide column; 4032. Spring support rod; 501. Rotary rod; 502. Top rod; 503. Nut shaft hole; 601. Push frame; 602. Hydraulic push rod; 603. Push rod swing shaft. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] To address the issue that clamping mechanisms require adjusting and clamping the hydraulic cylinders from four directions, with each clamping cylinder needing independent control, resulting in a cumbersome process; please refer to... Figure 1-6 This embodiment provides the following technical solution:

[0029] A high-precision machining cylinder fixture includes a machining table 1 and a cylinder locking disc 4, which is mounted above the machining table 1. Multiple concentric grippers 2 are arranged around the cylinder locking disc 4. A hydraulic drive cylinder 6 is located on one side of the bottom of the machining table 1. The hydraulic drive cylinder 6 is connected to the machining table 1 via a push-position frame 601. The hydraulic drive cylinder 6 can rotate the concentric turntable 102 at the bottom of the machining table 1 by extending and retracting a hydraulic push rod 602. A hydraulic push rod 602 is located inside the hydraulic drive cylinder 6, and a push rod swing shaft 603 is located at one end of the hydraulic push rod 602. The bottom of the machining table 1 is equipped with... A concentric turntable 102 is provided, and a truss 101 is provided below the concentric turntable 102. Lifting rings 1011 are provided at both ends of the truss 101. The truss 101 is used to fix the concentric turntable 102 and allow the concentric turntable 102 to rotate at the bottom of the tooling processing table 1. The truss 101 is connected to the tooling processing table 1 through the lifting rings 1011. A central connecting shaft 1012 is provided in the middle section of the truss 101. The concentric turntable 102 is rotatably connected to the truss 101 through the central connecting shaft 1012. A concentric sliding groove 1021 is provided on the outer surface of the concentric turntable 102. The concentric sliding groove 1021 is set with an arc structure. The push rod swing shaft 603 is rotatably connected to the concentric turntable 102 through a rotating shaft.

[0030] In this embodiment, the arc-shaped concentric groove 1021 can drive the concentric claw 2 structure to move outward or inward when the concentric turntable 102 rotates;

[0031] In this embodiment, a tray 403 is provided below the cylinder locking disc 4, and two straightening and positioning frames 5 are provided on one side of the cylinder locking disc 4. The tray 403 and the straightening and positioning frames 5 are connected by bolts. The outer surface of the straightening and positioning frame 5 is provided with a nut shaft hole 503. A rotating rod 501 is provided inside the nut shaft hole 503. A top rod 502 is provided at one end of the rotating rod 501. The rotating rod 501 and the nut shaft hole 503 are rotatably connected by internal threads. A support sleeve 401 is provided on the outer surface of the cylinder locking disc 4. Rubber pad shafts 402 are provided around the support sleeve 401. The rubber pad shafts 402 are connected to the cylinder locking disc 4 by a slot. A guide post 4031 is provided between the tray 403 and the cylinder locking disc 4. A spring support rod 4032 is provided between the guide posts 4031. The tray 403 is connected to the tooling processing table 1 through the spring support rod 4032.

[0032] In this embodiment, the cylinder structure is placed vertically above the cylinder lock plate 4. The rubber pad shaft 402 on the surface of the cylinder lock plate 4 can provide support for the bottom of the cylinder, and at the same time, the rubber pad shaft 402 can also prevent wear between the cylinder lock plate 4 and the cylinder workpiece.

[0033] The hydraulic cylinder locking plate 4, together with the bottom tray 403, has an elastic structure with the tooling processing table 1. When the hydraulic cylinder locking plate 4 receives pressure from the hydraulic cylinder or external pressure, the spring support rod 4032 at the bottom of the tray 403 can retract to prevent the hydraulic cylinder locking plate 4 and the tooling processing table 1 from being damaged by pressure.

[0034] In this embodiment, by rotating the rotary rod 501, the push rod 502 can be adjusted to enter between the tray 403 and the hydraulic cylinder locking plate 4, so as to prevent the distance between the two from changing under the influence of external pressure;

[0035] In this embodiment, the concentric gripper 2 includes a bracket 201 and a hook 202. The hook 202 is connected to the bracket 201 by bolts. The hook 202 is connected to the support shaft 3 through the bracket 201 structure at the bottom. The hook 202 is responsible for clamping the hydraulic cylinder. A concentric sliding shaft 301 is provided below one end of the support shaft 3. The support shaft 3 is slidably connected to the concentric sliding groove 1021 through the concentric sliding shaft 301. Locking frames 304 are provided on both sides of the support shaft 3. The bracket 201 is connected to the support shaft 3 through the locking frames 304. A slide block 303 is provided between the bracket 201 and the support shaft 3. The slide block 303 is connected to the tooling processing table 1 by bolts. The directional rail 302 below the slide block 303 is connected to the support shaft 3 by bolts. The support shaft 3 is slidably connected to the slide block 303 through the directional rail 302.

[0036] In this embodiment, the hydraulic push rod 602 is retracted by the hydraulic drive cylinder 6, and the push rod swing shaft 603 at the front end of the hydraulic push rod 602 drives the concentric turntable 102 to rotate clockwise. The concentric sliding groove 1021 on the surface of the concentric turntable 102 brings the support fixed shaft 3 toward the center of the tooling processing table 1. As the support fixed shaft 3 moves, the concentric claw 2 on the outside of the cylinder locking plate 4 also moves toward the center to complete the clamping operation of the cylinder. After the cylinder completes the processing operation, the hydraulic drive cylinder 6 pushes out the hydraulic push rod 602, and the concentric turntable 102 rotates counterclockwise. At this time, the concentric claw 2 expands outward to release the clamping. Through a set of hydraulic structures, multiple concentric claws 2 can be controlled to complete the clamping and holding operation at the same time, which is faster and more effective than previous technologies.

[0037] Working principle: The hydraulic cylinder structure to be processed is placed vertically above the hydraulic cylinder lock plate 4. The rubber pad shaft 402 on the surface of the hydraulic cylinder lock plate 4 provides support for the bottom of the cylinder. Simultaneously, the hydraulic cylinder lock plate 4, together with the bottom tray 403, and the tooling processing table 1 form an elastic structure. When the hydraulic cylinder lock plate 4 receives pressure from the cylinder or external forces, the spring support rod 4032 at the bottom of the tray 403 retracts, thus preventing damage to the hydraulic cylinder lock plate 4 and the tooling processing table 1 due to pressure. After adjusting the position, the hydraulic drive cylinder 6 is activated. The hydraulic push rod 602 is retracted, and the push rod swing shaft 603 at the front end of the hydraulic push rod 602 drives the concentric turntable 102 to rotate clockwise. The concentric sliding groove 1021 on the surface of the concentric turntable 102 pulls the support fixed shaft 3 toward the center of the tooling processing table 1. As the support fixed shaft 3 moves, the concentric claw 2 on the outside of the cylinder locking plate 4 also moves toward the center to complete the clamping operation of the cylinder. After the cylinder completes the processing operation, the hydraulic drive cylinder 6 pushes out the hydraulic push rod 602, and the concentric turntable 102 rotates counterclockwise. At this time, the concentric claw 2 expands outward to release the clamping.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision machining cylinder tooling fixture, comprising a tooling machining table (1), characterized in that, It also includes a hydraulic cylinder locking disc (4), which is installed above the tooling processing table (1). Multiple concentric grippers (2) are arranged around the hydraulic cylinder locking disc (4). A hydraulic drive cylinder (6) is arranged on one side of the bottom of the tooling processing table (1). The hydraulic drive cylinder (6) is rotatably connected to the tooling processing table (1) through a push-pull frame (601). A hydraulic push rod (602) is arranged inside the hydraulic drive cylinder (6). A push rod swing shaft (603) is arranged at one end of the hydraulic push rod (602). A concentric turntable (102) is arranged at the bottom of the tooling processing table (1). A truss (101) is arranged below the concentric turntable (102). The truss (101) is provided with lifting rings (1011) at both ends. The truss (101) is connected to the tooling processing table (1) through the lifting rings (1011). The middle section of the truss (101) is provided with a central connecting shaft (1012). The concentric turntable (102) is rotatably connected to the truss (101) through the central connecting shaft (1012). The outer surface of the concentric turntable (102) is provided with a concentric sliding groove (1021). The concentric sliding groove (1021) is set with an arc structure. The push rod swing shaft (603) is rotatably connected to the concentric turntable (102) through a rotating shaft. The cylinder locking plate (4) is provided with a tray (403) below it. Two straightening and positioning frames (5) are provided on one side. The tray (403) is connected to the straightening and positioning frame (5) by bolts. The outer surface of the straightening and positioning frame (5) is provided with a nut shaft hole (503). A rotating rod (501) is provided inside the nut shaft hole (503). A top rod (502) is provided at one end of the rotating rod (501). The rotating rod (501) and the nut shaft hole (503) are rotatably connected by internal threads. The concentric claw (2) includes a bracket (201) and a claw (202). The claw (202) is connected to the bracket (201) by bolts. A concentric sliding shaft (301) is provided below one end of the supporting fixed shaft (3). The supporting fixed shaft (3) is connected by... The concentric sliding shaft (301) is slidably connected to the concentric sliding groove (1021). Locking frames (304) are provided on both sides of the supporting fixed shaft (3). The tooling processing table (1) is provided with through holes corresponding to the bracket (201). The bracket (201) is connected to the supporting fixed shaft (3) through the locking frame (304). A sliding seat (303) is provided between the bracket (201) and the supporting fixed shaft (3). The sliding seat (303) is connected to the tooling processing table (1) by bolts. The directional rail (302) below the sliding seat (303) is connected to the supporting fixed shaft (3) by bolts. The supporting fixed shaft (3) is slidably connected to the sliding seat (303) through the directional rail (302).

2. The high-precision machining cylinder tooling fixture according to claim 1, characterized in that: The outer surface of the cylinder lock plate (4) is provided with a support sleeve (401), and rubber pad shafts (402) are provided around the support sleeve (401). The rubber pad shafts (402) are connected to the cylinder lock plate (4) through a slot. A guide post (4031) is provided between the tray (403) and the cylinder lock plate (4), and a spring support rod (4032) is provided between the guide posts (4031). The tray (403) is connected to the tooling processing table (1) through the spring support rod (4032).

3. An operation method for a high-precision machining cylinder tooling fixture, implemented based on the high-precision machining cylinder tooling fixture described in claim 2, characterized in that... Includes the following steps: Step 1: Place the cylinder to be processed vertically above the cylinder lock plate (4). The rubber pad shaft (402) on the surface of the cylinder lock plate (4) provides support for the bottom of the cylinder. After adjusting the position, turn on the hydraulic drive cylinder (6). Step 2: The hydraulic drive cylinder (6) retracts the hydraulic push rod (602), and the push rod swing shaft (603) at the front end of the hydraulic push rod (602) drives the concentric turntable (102) to rotate clockwise. The support fixed shaft (3) is brought together with the center of the tooling processing table (1) through the concentric sliding groove (1021) on the surface of the concentric turntable (102). Step 3: As the support shaft (3) moves, the concentric claw (2) on the outside of the cylinder locking plate (4) will also move towards the center to complete the clamping operation of the cylinder. After the cylinder completes the processing operation, the hydraulic drive cylinder (6) pushes out the hydraulic push rod (602), and the concentric turntable (102) rotates counterclockwise. At this time, the concentric claw (2) expands outward to release the clamping.

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