A large bore part positioning device

By using a cylinder to drive the output rod to open the inner limit of the elastic limit ring, and combining this with the adjusting seat to adapt to changes in the bore diameter, the problem of external clamping limitation in existing devices is solved, and the processing efficiency of large-diameter parts is improved.

CN224445281UActive Publication Date: 2026-07-03重庆弘升源自动化设备有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
重庆弘升源自动化设备有限公司
Filing Date
2025-07-21
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing part positioning devices are mostly external clamping and limiting devices, which makes it inconvenient to clamp and restrict the outer side when machining large-diameter parts, requiring multiple adjustments and affecting machining efficiency.

Method used

A cylinder drives the output rod to open the conical block and make it contact the elastic limiting ring with the hole wall. Combined with the adjusting seat, it can adapt to different hole diameters and achieve inner limiting. The installation position is optimized by installing components and limiting grooves.

Benefits of technology

It achieves stable inner limiting of large-diameter parts, improves processing efficiency, reduces the number of outer clamping and adjustment times, and adapts to the positioning requirements of parts with different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to mechanical processing technical field, concretely relates to a big aperture part positioning device, including mounting seat and positioning assembly, positioning assembly still includes installation component, cylinder, taper block, output rod, support ring, elastic limit ring and adjusting seat, through installation component installs the device in the position needing to be fixed, the aperture of the aperture part needing to be positioned is placed on adjusting seat through elastic limit ring, then moves through cylinder drive output rod, and the taper block on output rod will open elastic limit ring and contact with the hole wall of aperture part, thereby extruding limit, adjusting seat can be replaced according to the aperture part of different height, and the use of different aperture parts is convenient, the existing device of existing part positioning is mostly external clamping limit, thereby carries out positioning limit to part, leads to aperture class part processing, and the outside is inconvenient for processing production and is clamped and limited, needs to adjust the outside clamping position many times, influences the problem of processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a positioning device for large-diameter parts. Background Technology

[0002] In the field of high-end equipment manufacturing, the machining accuracy of large-diameter parts directly determines the reliability and service life of the equipment. In automated machining, the parts need to be positioned first to ensure their stability before machining. Positioning fixtures enable the equipment to machine the parts more precisely and facilitate quick and easy positioning, thus making subsequent machining easier.

[0003] Existing part positioning methods mostly rely on external clamping and limiting, which restricts the positioning of parts. This results in the inconvenience of machining hole-type parts due to the external clamping restriction, requiring multiple adjustments to the external clamping position and affecting machining efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a positioning device for large-diameter parts, which aims to solve the problem that existing devices mostly use external clamping and limiting to position the parts, thus restricting the positioning of the parts. This results in the external clamping being restricted during the processing of large-diameter parts, making it inconvenient for processing and requiring multiple adjustments to the external clamping position, which affects processing efficiency.

[0005] To achieve the above objectives, this utility model provides a positioning device for large-diameter parts, including a mounting base and a positioning assembly. The positioning assembly further includes a mounting component, a cylinder, a conical block, an output rod, a support ring, an elastic limiting ring, and an adjusting base.

[0006] The cylinder is connected to the mounting base and located at the bottom of the mounting base. The output rod is fixedly connected to the output end of the cylinder and located on one side of the cylinder. The conical block is fixedly connected to the output rod and located on one side of the output rod. The support ring is connected to the mounting base and located outside the output rod. The elastic limiting ring is connected to the support ring and located at the top of the support ring. The adjusting seat is detachably connected to the mounting base and located at the top of the mounting base. The mounting component is connected to the mounting base and located outside the mounting base.

[0007] The elastic limiting ring includes a semi-cylinder, a ring body, and a protrusion. The ring body is connected to the support ring and is located at the top of the support ring. The protrusion is connected to the ring body and is located inside the ring body. The semi-cylinder is connected to the ring body and is located outside the ring body.

[0008] The mounting component includes a first L-shaped plate and a second L-shaped plate. The first L-shaped plate is detachably connected to the mounting base and is located outside the mounting base. The second L-shaped plate is detachably connected to the first L-shaped plate and is located on one side of the first L-shaped plate.

[0009] The positioning component further includes an air intake pipe, which is fixedly connected to the mounting base and connected to the cylinder, and is located on one side of the mounting base.

[0010] The positioning component further includes a limiting rod and a limiting groove. The limiting groove is fixedly connected to the mounting base and located on one side of the mounting base. The limiting rod is slidably connected to the limiting groove and located on one side of the limiting groove.

[0011] This utility model discloses a positioning device for large-diameter parts. The device is installed at the desired location using the mounting component. The diameter of the part to be positioned passes through the elastic limiting ring and is placed on the adjusting seat. Then, the output rod is moved by the cylinder, causing the conical block on the output rod to open the elastic limiting ring and contact the hole wall of the part, thereby compressing and limiting it. The adjusting seat can be replaced according to the different heights of the part with the diameter, facilitating the placement and use of the device for parts with different diameters. This solves the problem that existing devices mostly rely on external clamping and limiting for part positioning, which restricts the positioning of parts and makes it difficult to process large-diameter parts, requiring multiple adjustments to the external clamping position and affecting processing efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a structural diagram of a positioning device for large-diameter parts according to this utility model.

[0014] Figure 2 This is a side view of a positioning device for large-diameter parts according to this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of a positioning device for large-diameter parts according to this utility model.

[0016] 101-Mounting base, 102-Positioning component, 103-Mounting component, 104-Cylinder, 105-Conical block, 106-Output rod, 107-Support ring, 108-Elastic limit ring, 109-Adjusting seat, 110-Semi-cylinder, 111-Ring body, 112-Protrusion, 113-First L-shaped plate, 114-Second L-shaped plate, 115-Air pipe, 116-Limiting rod, 117-Limiting groove. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1-3 , Figure 1 This is a structural diagram of a large-diameter part positioning device according to the first embodiment of this utility model. Figure 2 This is a side view of a large-diameter part positioning device according to the first embodiment of this utility model. Figure 3 This is a cross-sectional schematic diagram of a positioning device for large-diameter parts according to this utility model.

[0019] This utility model provides a positioning device for large-diameter parts, including a mounting base 101 and a positioning assembly 102. The positioning assembly 102 further includes a mounting component 103, a cylinder 104, a conical block 105, an output rod 106, a support ring 107, an elastic limiting ring 108, an adjusting seat 109, a semi-cylinder 110, a ring body 111, a protrusion 112, a first L-shaped plate 113, a second L-shaped plate 114, an air pipe 115, a limiting rod 116, and a limiting groove 117. This solution solves the problem that existing devices often rely on external clamping and limiting for part positioning, which restricts the part's location. This leads to difficulties in machining large-diameter parts, requiring multiple adjustments to the external clamping position and impacting machining efficiency.

[0020] In this embodiment, the cylinder 104 is connected to the mounting base 101 and located at the bottom of the mounting base 101. The output rod 106 is fixedly connected to the output end of the cylinder 104 and located on one side of the cylinder 104. The conical block 105 is fixedly connected to the output rod 106 and located on one side of the output rod 106. The support ring 107 is connected to the mounting base 101 and located outside the output rod 106. The elastic limiting ring 108 is connected to the support ring 107 and located at the top of the support ring 107. The adjusting seat 109 is detachably connected to the mounting base 101 and located at the top of the mounting base 101. The mounting member 103 is connected to the mounting base 101 and located outside the mounting base 101. The device is installed at the required fixed position via the mounting component 103. The diameter of the part to be positioned is placed on the adjusting seat 109 through the elastic limiting ring 108. Then, the output rod 106 is moved by the cylinder 104, so that the conical block 105 on the output rod 106 opens the elastic limiting ring 108 to contact the hole wall of the part, thereby performing compression and limiting. The adjusting seat 109 can be replaced according to the different heights of the part, which facilitates the placement and use of the device for parts with different diameters. This solves the problem that existing devices mostly use external clamping and limiting for part positioning, which restricts the positioning of parts. This results in the external clamping and limiting of part positioning, making it inconvenient to process and requiring multiple adjustments of the external clamping position, thus affecting processing efficiency.

[0021] The elastic limiting ring 108 includes a semi-cylinder 110, a ring body 111, and a protrusion 112. The ring body 111 is connected to the support ring 107 and is located at the top of the support ring 107. The protrusion 112 is connected to the ring body 111 and is located on the inner side of the ring body 111. The semi-cylinder 110 is connected to the ring body 111 and is located on the outer side of the ring body 111. The ring body 111 has an annular design and has a strip groove with an S-shaped routing. The ring body 111 extends and retracts outward by sliding the tapered block 105 up and down and contacting and releasing the protrusion 112, thereby bringing the semi-cylinder 110 on the outer side of the ring body 111 into contact with the hole wall of the hole part, thereby performing compression limiting.

[0022] Secondly, the mounting component 103 includes a first L-shaped plate 113 and a second L-shaped plate 114. The first L-shaped plate 113 is detachably connected to the mounting base 101 and is located on the outside of the mounting base 101. The second L-shaped plate 114 is detachably connected to the first L-shaped plate 113 and is located on one side of the first L-shaped plate 113. By assembling and connecting the first L-shaped plate 113 and the second L-shaped plate 114, the distance between the installation position and the mounting base 101 can be adjusted during installation. Alternatively, by assembling the first L-shaped plate 113 and the second L-shaped plate 114 at different angles, the device can be installed in various ways, such as side hanging, placement, or hoisting.

[0023] Furthermore, the positioning component 102 also includes an air pipe 115, which is fixedly connected to the mounting base 101 and connected to the cylinder 104, and is located on one side of the mounting base 101. The cylinder 104 is used to connect to the starting device for convenient control of the output of the cylinder 104.

[0024] Finally, the positioning assembly 102 also includes a limiting rod 116 and a limiting groove 117. The limiting groove 117 is fixedly connected to the mounting base 101 and is located on one side of the mounting base 101. The limiting rod 116 is slidably connected to the limiting groove 117 and is located on one side of the limiting groove 117. By sliding the limiting rod 116 on the limiting groove 117, the maximum sliding range of the output rod 106 is limited, preventing the tapered block 105 on the output rod 106 from sliding too far and causing the ring body 111 to be damaged.

[0025] In the large-diameter part positioning device of this utility model, the device is installed at the required fixed position by the mounting component 103. The diameter of the part to be positioned passes through the elastic limiting ring 108 and is placed on the adjusting seat 109. Then, the output rod 106 is driven to move by the cylinder 104, so that the conical block 105 on the output rod 106 opens the elastic limiting ring 108 to contact the hole wall of the part, thereby squeezing and limiting it. The adjusting seat 109 can be replaced according to the diameter of the part, which is different from the diameter of the part. This makes it convenient to place and use the device for parts with different diameters. This solves the problem that existing devices mostly use external clamping and limiting to position the part, which restricts the positioning of the part. As a result, when processing diameter parts, the outer side is clamped and restricted, which is not convenient for processing and production. It requires multiple adjustments of the outer clamping position, which affects the processing efficiency. The above-disclosed embodiments are merely preferred embodiments of the large-diameter part positioning device of this utility model, and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this utility model still fall within the scope of this utility model.

Claims

1. A positioning device for large-diameter parts, comprising a mounting base, characterized in that: It also includes a positioning component, which further includes a mounting component, a cylinder, a conical block, an output rod, a support ring, an elastic limiting ring, and an adjusting seat; The cylinder is connected to the mounting base and located at the bottom of the mounting base. The output rod is fixedly connected to the output end of the cylinder and located on one side of the cylinder. The conical block is fixedly connected to the output rod and located on one side of the output rod. The support ring is connected to the mounting base and located outside the output rod. The elastic limiting ring is connected to the support ring and located at the top of the support ring. The adjusting seat is detachably connected to the mounting base and located at the top of the mounting base. The mounting component is connected to the mounting base and located outside the mounting base.

2. The positioning device for large-diameter parts as described in claim 1, characterized in that: The elastic limiting ring includes a semi-cylinder, a ring body, and a protrusion. The ring body is connected to the support ring and is located at the top of the support ring. The protrusion is connected to the ring body and is located inside the ring body. The semi-cylinder is connected to the ring body and is located outside the ring body.

3. The positioning device for large-diameter parts as described in claim 2, characterized in that: The mounting component includes a first L-shaped plate and a second L-shaped plate. The first L-shaped plate is detachably connected to the mounting base and is located outside the mounting base. The second L-shaped plate is detachably connected to the first L-shaped plate and is located at the position of the first L-shaped plate.

4. The positioning device for large-diameter parts as described in claim 3, characterized in that: The positioning component also includes an air pipe, which is fixedly connected to the mounting base and connected to the cylinder, and is located on one side of the mounting base.

5. A positioning device for large-diameter parts as described in claim 4, characterized in that: The positioning component further includes a limiting rod and a limiting groove. The limiting groove is fixedly connected to the mounting base and located on one side of the mounting base. The limiting rod is slidably connected to the limiting groove and located on one side of the limiting groove.