Oil cylinder flange positioning tool

Abstract

The utility model provides an oil cylinder flange positioning tool which comprises a positioning driving seat, an internal and external positioning mechanism and a tool seat, the positioning driving seat is respectively provided with the internal and external positioning mechanism and the tool seat, the internal and external positioning mechanism is located above the positioning driving seat, and the tool seat is located below the positioning driving seat; the tool integrates internal expansion and external clamping, is widely applicable to oil cylinder flanges, simplifies operation, improves working efficiency and reduces labor intensity. The compact design optimizes space utilization and is convenient to use and store. And the inner and outer positioning clamping arms are designed to be L-shaped and concave-convex cambered surfaces, so that high-precision positioning is ensured, the machining quality is improved, and the rejection rate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil cylinder flanges, in particular to an oil cylinder flange positioning tool. Background Art

[0002] A hydraulic cylinder, also known as a linear actuator, produces a force proportional to the piston's effective area and the pressure differential across it. A cylinder flange is a specialized connection component used on cylinders and requires specialized tooling for positioning and securing during machining.

[0003] Currently, conventional cylinder flange fixtures, such as the one described in Chinese Utility Model Patent Publication No. CN219649650U, utilize a threaded transmission mechanism and an inclined transmission mechanism to achieve positioning and clamping of the cylinder flange. However, this design has significant drawbacks. Specifically, the composite structure only generates a unidirectional clamping force, i.e., internal expansion clamping, and lacks external clamping. This limitation makes this positioning fixture difficult to apply to certain specialized cylinder flanges or specific machining processes, making it unable to meet diverse machining needs.

[0004] Therefore, it is very necessary to invent a kind of oil cylinder flange positioning tool. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a cylinder flange positioning tool, comprising a positioning drive seat, an inner and outer positioning mechanism and a tooling seat, wherein the inner and outer positioning mechanism and the tooling seat are respectively mounted on the positioning drive seat, the inner and outer positioning mechanism is located above the positioning drive seat, and the tooling seat is located below the positioning drive seat;

[0006] The positioning drive seat includes a base shell, a driving gear plate, a worm wheel, a worm and a handle. The inner and outer positioning mechanisms and the tooling seat are respectively installed on the base shell. The driving gear plate is rotatably installed inside the base shell, and the driving gear plate is engaged with the inner and outer positioning mechanisms. The worm wheel fixedly installed on the driving gear plate is engaged with the worm. The handle is fixedly installed at either end of the worm, and the handle is rotatably installed on the base shell.

[0007] The internal and external positioning mechanism includes a tooling cover, a guide groove, a transverse screw, a driven gear and an internal and external positioning clamping arm. The tooling cover is fixedly installed on the top of the base shell. At least three guide grooves are provided on the tooling cover, and the transverse screw is rotatably installed in the guide groove. The internal and external positioning clamping arm is installed on the transverse screw. Either end of the transverse screw is fixed to the driven gear, and the driven gear is meshed with the driving gear plate.

[0008] Preferably, the driving gear plate is rotatably mounted on the upper interior of the base housing, and the upper surface of the driving gear plate is provided with gear teeth that mesh with the driven gear.

[0009] Preferably, the worm wheel is fixedly mounted on the lower surface of the driving gear plate and meshes with the worm in turn, and the handle fixedly mounted on the end of the worm is located on the outside of the base shell.

[0010] Preferably, the circular array of guide grooves runs through and starts on the tooling cover, and the transverse screw is rotatably installed at the inner lower position of the guide groove; a slot allowing the driven gear to rotate is opened inside the tooling cover, and the slot is located in the outer area of ​​the guide groove.

[0011] Preferably, the inner and outer positioning clamp arms are of an "L"-shaped structure, and the inner and outer positioning clamp arms are composed of a vertical portion and a transverse portion. The transverse portion of the inner and outer positioning clamp arms is slidably arranged in the inner and outer positioning clamp arms of the guide groove, and the outer surface of the vertical portion of the inner and outer positioning clamp arms is a concave and convex arc surface, which fits with the surface of the inner ring and outer ring of the cylinder flange.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model realizes the dual functions of internal expansion and external clamping by introducing a positioning drive seat and internal and external positioning mechanisms, which greatly broadens the scope of application of the tooling, enabling it to flexibly cope with various types and sizes of cylinder flanges and meet diverse processing needs. At the same time, the use of a worm gear transmission mechanism allows the internal and external positioning mechanisms to be quickly driven by simply rotating the handle, which not only simplifies the operating process and improves work efficiency, but also effectively reduces the labor intensity of the operator. In addition, the overall design of the tooling is compact and the layout of each component is reasonable, which not only ensures the comprehensiveness and power of the functions, but also realizes the optimal utilization of space, making the tooling more convenient in use and storage. It is particularly worth mentioning that the "L"-shaped structure and concave and convex arc surface design of the internal and external positioning clamp arms ensure a close fit with the inner and outer rings of the cylinder flange, achieving a high-precision positioning effect, thereby improving the accuracy and quality of processing and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0016] Figure 3 It is a half-section structural schematic diagram of the utility model.

[0017] In the picture:

[0018] Positioning drive seat 1, base shell 11, driving gear plate 12, worm wheel 13, worm 14, handle 15, internal and external positioning mechanism 2, tooling cover 21, guide groove 22, transverse screw 23, driven gear 24, internal and external positioning clamping arm 25, tooling seat 3. DETAILED DESCRIPTION

[0019] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0021] As attached Figure 1 To the attached Figure 3 As shown:

[0022] The utility model provides a cylinder flange positioning tool, which includes a positioning drive seat 1, an internal and external positioning mechanism 2 and a tooling seat 3. The internal and external positioning mechanism 2 and the tooling seat 3 are respectively installed on the positioning drive seat 1. The internal and external positioning mechanism 2 is located above the positioning drive seat 1, and the tooling seat 3 is located below the positioning drive seat 1.

[0023] Furthermore, the positioning drive seat 1 includes a base shell 11, a driving gear plate 12, a worm wheel 13, a worm 14 and a handle 15. The internal and external positioning mechanisms 2 and the tooling seat 3 are respectively installed on the base shell 11. The driving gear plate 12 is rotatably installed inside the base shell 11, and the driving gear plate 12 is engaged with the internal and external positioning mechanisms 2. The worm wheel 13 fixedly installed on the driving gear plate 12 is engaged with the worm 14. The handle 15 is fixedly installed at either end of the worm 14, and the handle 15 is rotatably installed on the base shell 11.

[0024] Furthermore, the internal and external positioning mechanism 2 includes a tooling cover 21, a guide groove 22, a transverse screw 23, a driven gear 24 and an internal and external positioning clamping arm 25. The tooling cover 21 is fixedly installed above the base shell 11. At least three guide grooves 22 are provided on the tooling cover 21, and the transverse screw 23 is rotatably installed in the guide groove 22. The internal and external positioning clamping arm 25 is installed on the transverse screw 23. Either end of the transverse screw 23 is fixed to the driven gear 24, and the driven gear 24 is meshed with the driving gear plate 12.

[0025] Furthermore, the drive gear plate 12 is cleverly rotatably mounted within the upper portion of the base housing 11. This layout ensures stable and efficient power transmission. In particular, the upper surface of the drive gear plate 12 is meticulously designed with teeth that mesh with the driven gear 24. This design ensures more precise and stable transmission between the gears, effectively ensuring the smooth operation of the entire tooling system.

[0026] Furthermore, to ensure efficient power transmission, a worm gear 13 is fixedly mounted on the lower surface of the drive gear plate 12 and forms a tight meshing relationship with the worm 14. This worm gear transmission mechanism has a self-locking function, ensuring that the tooling remains stably clamped even after the handle 15 stops rotating. The handle 15 is fixedly mounted on the end of the worm 14. This handle is cleverly designed on the outside of the base housing 11, allowing the operator to easily rotate it, thereby achieving flexible control of the internal and external positioning mechanisms.

[0027] Furthermore, the tooling cover 21 is designed with a circular array of guide grooves 22 running through it. These guide grooves 22 not only provide a stable mounting base for the transverse lead screws 23, but also ensure their smooth rotation within the prescribed trajectory. Furthermore, a dedicated notch is provided within the tooling cover 21 to allow for the rotational motion of the driven gear 24. This design detail fully considers the kinematic relationships and spatial layout between various components, making the entire tooling structure more compact and efficient.

[0028] Furthermore, the inner and outer positioning clamp arms 25 adopt a unique "L"-shaped structural design, consisting of a vertical portion and a transverse portion. This design enables the clamp arms to act on the inner and outer rings of the cylinder flange simultaneously, achieving a double clamping effect. In particular, the transverse portion of the inner and outer positioning clamp arms 25 is slidably arranged in the guide groove 22, ensuring the stability and accuracy of the inner and outer positioning clamp arms 25 during movement. The outer surface of the vertical portion of the inner and outer positioning clamp arms 25 is designed as a concave and convex arc surface. This special shape can closely fit with the inner and outer ring surfaces of the cylinder flange, thereby achieving a high-precision positioning effect. This design not only improves the accuracy and quality of processing, but also enhances the adaptability of the tooling to cylinder flanges of different types and sizes.

[0029] The working principle is as follows: First, the initial state is adjusted:

[0030] Installation and preparation: Place the oil cylinder flange positioning fixture of the present invention on a suitable workbench to ensure that the fixture base 3 firmly supports the entire fixture. At this time, the inner and outer positioning clamp arms 25 are in the initial position, that is, the state of not clamping the oil cylinder flange.

[0031] Position of the handle 15: The operator places the handle 15 in an initial position (eg, horizontal or vertical, depending on the design), where the worm 14 does not apply torque to the worm wheel 13 and the drive gear plate 12 remains stationary.

[0032] Then, start the clamping process:

[0033] Rotating handle 15: When the operator starts to rotate the handle 15, the worm 14 rotates accordingly. Due to the tight meshing of the worm 14 and the worm wheel 13, the worm wheel 13 is driven to rotate, thereby driving the driving gear plate 12 to rotate above the interior of the base housing 11.

[0034] Gear transmission: As the driving gear plate 12 rotates, the gear teeth above it mesh with the driven gear 24, transmitting the rotational power to the driven gear 24. Since the driven gear 24 is fixedly connected to one end of the transverse screw 23, the transverse screw 23 begins to rotate in the guide groove 22.

[0035] Screw-driven clamping arms: The rotation of the horizontal screw 23 causes the inner and outer positioning clamping arms 25 to move along the guide groove 22. Since the inner and outer positioning clamping arms 25 are designed as an "L" structure, their horizontal portions slide within the guide groove 22, while the vertical portions gradually move toward or away from the tooling center, thereby clamping or releasing the cylinder flange.

[0036] Double Clamping: The vertical outer surfaces of the inner and outer positioning arms 25 are curved, allowing them to fit snugly against the inner or outer surface of the cylinder flange. As the arms move, they apply clamping force from the inside or outside of the cylinder flange, achieving a precise, secure hold.

[0037] Positioning and Fixing: When the inner and outer positioning clamp arms 25 reach the predetermined position, the cylinder flange is firmly clamped in the fixture. At this point, the self-locking function of the worm gear mechanism ensures that the fixture remains firmly clamped even if the handle 15 stops rotating.

[0038] Finally, release and disassembly:

[0039] Reverse rotation handle: When the cylinder flange needs to be released, the operator reversely rotates the handle 15. This operation causes the driven gear 24 and the transverse screw 23 to rotate in the opposite direction through the transmission chain of the worm 14, the worm wheel 13 and the drive gear plate 12.

[0040] Clamp arm reset: With the reverse rotation of the transverse lead screw 23, the inner and outer positioning clamp arms 25 move in the reverse direction along the guide groove 22 to the initial position, releasing the clamping force on the cylinder flange.

[0041] Disassembling the cylinder flange: After confirming that the inner and outer positioning clamp arms 25 have been completely reset, the operator can safely disassemble the cylinder flange and complete the entire processing or testing process.

[0042] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A cylinder flange positioning tool, characterized in that: The utility model comprises a positioning drive seat (1), an inner and outer positioning mechanism (2) and a tooling seat (3), wherein the inner and outer positioning mechanism (2) and the tooling seat (3) are respectively mounted on the positioning drive seat (1), the inner and outer positioning mechanism (2) is located above the positioning drive seat (1), and the tooling seat (3) is located below the positioning drive seat (1); The positioning drive seat (1) comprises a base shell (11), a driving gear plate (12), a worm wheel (13), a worm (14) and a handle (15); the inner and outer positioning mechanisms (2) and the tooling seat (3) are respectively mounted on the base shell (11); a driving gear plate (12) is rotatably mounted inside the base shell (11), and the driving gear plate (12) is meshed with the inner and outer positioning mechanisms (2); the worm wheel (13) fixedly mounted on the driving gear plate (12) is meshed with the worm (14); the handle (15) is fixedly mounted on either end of the worm (14); and the handle (15) is rotatably mounted on the base shell (11); The internal and external positioning mechanism (2) comprises a tool cover (21), a guide groove (22), a transverse screw (23), a driven gear (24) and an internal and external positioning clamp arm (25). The tool cover (21) is fixedly mounted above the base shell (11). At least three guide grooves (22) are provided on the tool cover (21), and the transverse screw (23) is rotatably mounted in the guide groove (22). The internal and external positioning clamp arm (25) is mounted on the transverse screw (23). Either end of the transverse screw (23) is fixed to the driven gear (24), and the driven gear (24) is meshed with the driving gear plate (12).

2. The oil cylinder flange positioning tool according to claim 1, characterized in that: The driving gear plate (12) is rotatably mounted on the upper interior of the base housing (11), and the upper surface of the driving gear plate (12) is provided with gear teeth that mesh with the driven gear (24).

3. The oil cylinder flange positioning tool according to claim 1, characterized in that: The worm wheel (13) is fixedly mounted on the lower surface of the driving gear plate (12) and meshes with the worm (14) thereof. The handle (15) fixedly mounted at the end of the worm (14) is located outside the base housing (11).

4. The oil cylinder flange positioning tool according to claim 1, characterized in that: The guide groove (22) is formed in a circular array and starts to penetrate the tool cover (21). The transverse screw (23) is rotatably mounted at a lower position inside the guide groove (22). A notch is provided inside the tool cover (21) to allow the driven gear (24) to rotate. The notch is located in an outer area of ​​the guide groove (22).

5. The oil cylinder flange positioning tool according to claim 1, characterized in that: The inner and outer positioning clamp arms (25) are of an L-shaped structure. The inner and outer positioning clamp arms (25) are composed of a vertical portion and a horizontal portion. The horizontal portion of the inner and outer positioning clamp arms (25) is slidably arranged in the inner and outer positioning clamp arms (25) of the guide groove (22). The outer surface of the vertical portion of the inner and outer positioning clamp arms (25) is a concave-convex arc surface, which is matched with the surfaces of the inner ring and the outer ring of the cylinder flange.

Images