quick clamp for perforating gun
By designing a quick-release fixture for the perforating gun, and utilizing a magnetic limit and wedge-shaped support groove structure, the problem of rotation limitation during perforating gun processing was solved, improving the stability and consistency of inner wall processing, and reducing the difficulty and cost of burr generation and deburring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁波宇恒能源科技有限公司
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, it is difficult to effectively restrict the rotation of the perforating gun during processing, resulting in high difficulty and cost in processing the inner wall.
A quick-release fixture for perforating guns was designed, comprising a clamping station, a side clamping component, a circumferential limiting component, and a magnetic limiting structure. Coarse positioning is achieved through magnetic adsorption, and wedge-shaped support grooves and supports are combined to ensure clamping stability and consistency of inner wall processing.
It achieves stable clamping of the perforating gun, ensuring consistent depth and surface quality of inner wall processing, and reducing the difficulty of burr generation and the cost of deburring.
Smart Images

Figure CN224445718U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of limit clamp technology, specifically relating to a quick clamp for a perforating gun. Background Technology
[0002] A perforating projectile is a pyrotechnic used to penetrate casings, cement rings, and strata during the perforation process. Its main structure consists of a casing, an initiating explosive, a main explosive, and a shaped charge liner. The casing is typically made of zinc, aluminum, or low-carbon steel, and its head is connected to a detonating cord. The inner cavity of the casing is conical, ensuring the formation of a shaped jet from the explosive detonation. Both the main explosive and the initiating explosive are ammunition. The initiating explosive has high sensitivity, making it easy for the detonating cord connected to the casing head to detonate the perforating projectile. The shaped charge liner is generally a frustum, its function being to generate the jet after the main explosive detonates, forming the perforation channel. The shape and quality of the perforation channel are mainly determined by the material and structure of the shaped charge liner. During the production of perforating guns, the inner wall of the casing needs to be machined, thus requiring restrictions on its rotation; therefore, obtaining a quick-release clamp for perforating guns is crucial. Utility Model Content
[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a quick clamp for a perforating gun, including at least one clamping station, each clamping station including at least one side clamping component, and further including a circumferential limiting assembly. The axial limiting assembly includes a movable groove, a limiting part, a reset member, and a limiting member that is limited in the movable groove by the limiting part. The limiting member at least partially protrudes from the movable groove, and a reset member is installed between the limiting member and the movable groove. The outer wall of the perforating gun is provided with a mating groove, and the end of the limiting member extends into the mating groove to achieve limiting.
[0004] The limiting member has a mounting groove at its end, and a magnet is fixed in the mounting groove. The perforating gun is made of a metal material that is attracted to and attracted by the magnet. There is a gap between the magnet and the top of the mounting groove.
[0005] Through the above technical solution, the magnet can achieve coarse positioning. When put into use, the worker places the mating groove roughly in the position of the magnet, and then rotates it so that the limiting part is inserted into the mating groove. Then the side clamping part moves to clamp it, which means that the inner wall of the perforating gun can be processed by other internal processing devices.
[0006] The system also includes a worktable with a first through hole. A side-clamping component, a gripping cylinder, passes at least partially through the first through hole for fixed installation. A movable slot is formed on the worktable, and a stop member is also included, fixed to the worktable of the movable slot. A limiting portion is formed on the inner wall of the stop member. At least one support member is also installed on the worktable, with a wedge-shaped support groove on it. The inclined surface of the wedge-shaped support groove forms a support surface. A support member is installed on at least one side of each side-clamping component.
[0007] The above technical solution allows for the selection of an appropriate number of support components based on the length of different perforating guns.
[0008] At least one support component is equipped with an auxiliary baffle to increase support and limit the movement.
[0009] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, the clamping stability cavity ensures the consistency of the inner keyway depth and surface quality, reduces burrs, and lowers the difficulty and cost of deburring work. Attached Figure Description
[0010] Figure 1 This utility model is three-dimensional. Figure 1 ;
[0011] Figure 2 This utility model is three-dimensional. Figure 2 ;
[0012] Figure 3 This is a cross-sectional schematic diagram of the present invention;
[0013] Figure label:
[0014] 1 Clamping station; 2 Side clamping component; 3 Circumferential limiting assembly; 4 Movable groove; 5 Limiting part; 6 Reset component; 7 Limiting component; 8 Mating groove; 9 Perforating gun; 10 Mounting groove; 11 Magnet; 12 Worktable; 13 Support component; 14 Wedge support groove; 15 Auxiliary baffle; 16 Internal machining device. Detailed Implementation
[0015] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.
[0016] Referring to the accompanying drawings, the present invention adopts the following technical solution: The present invention provides a quick clamp for a perforating gun, including at least one clamping station 1, each clamping station 1 including at least one side clamping component 2, and further including a circumferential limiting component 3. The axial limiting component includes a movable groove 4, a limiting part 5, a reset component 6, and a limiting component 7 that is limited in the movable groove 4 by the limiting part 5. The limiting component 7 at least partially protrudes from the movable groove 4, and the reset component 6 is installed between the limiting component 7 and the movable groove 4. The outer wall of the perforating gun 9 is provided with a mating groove 8, and the end of the limiting component 7 extends into the mating groove 8 to achieve limiting.
[0017] The end of the limiting member 7 has a mounting groove 10, and a magnet 11 is fixed in the mounting groove 10. The perforating gun 9 is made of metal that is attracted to the magnet 11. There is a gap between the magnet 11 and the top of the mounting groove 10.
[0018] Through the above technical solution, the magnet 11 can achieve coarse positioning. When it is put into use, the worker places the mating groove 8 roughly in the position of the magnet 11, and then rotates it so that the limiting member 7 is inserted into the mating groove 8. Then the side clamping member 2 moves to clamp it, so that the inner wall of the perforating gun 9 can be processed by other internal processing devices 16.
[0019] The system also includes a worktable 12 with a first through hole. The side clamping component 2, a gripping cylinder, passes through at least part of the first through hole for fixed installation. A movable slot 4 is formed on the worktable 12, and a stop is also included, fixed to the worktable 12 with the movable slot 4. A limiting part 5 is formed on the inner wall of the stop. At least one support member 13 is also installed on the worktable 12, with a wedge-shaped support groove 14. The inclined surface of the wedge-shaped support groove 14 forms a support surface. At least one side of each side clamping component 2 is equipped with a support member 13.
[0020] Through the above technical solution, an appropriate number of support members 13 are selected according to the different lengths of the perforating guns 9.
[0021] At least one support member 13 is equipped with an auxiliary baffle 15 to increase support and limit the position.
[0022] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, the clamping stability cavity ensures the consistency of the inner keyway depth and surface quality, reduces burrs, and lowers the difficulty and cost of deburring work.
[0023] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0024] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A perforating gun quick clamp, characterized by: The device includes at least one clamping station (1), each clamping station (1) including at least one side clamping component (2), and also includes a circumferential limiting assembly (3). The axial limiting assembly includes a movable groove (4), a limiting part (5), and a reset member (6), and a limiting member (7) that is limited in the movable groove (4) by the limiting part (5). The limiting member (7) extends at least partially out of the movable groove (4), and the reset member (6) is installed between the limiting member (7) and the movable groove (4). The outer wall of the perforating gun (9) is provided with a mating groove (8), and the end of the limiting member (7) extends into the mating groove (8) to achieve limiting.
2. The perforating gun quick clamp of claim 1, wherein: The end of the limiting member (7) has an installation groove (10), and a magnet (11) is fixed in the installation groove (10). The perforating gun (9) is made of metal material that is attracted to the magnet (11).
3. The perforating gun quick clamp of claim 2, wherein: There is a gap between the magnet (11) and the top of the mounting groove (10).
4. The quick-release clamp for the perforating gun according to claim 1, characterized in that: It also includes a workbench (12), on which a first through hole is provided, and a side clamping component (2) is a gripping cylinder, which passes through at least part of the first through hole for fixed installation.
5. The perforating gun quick clamp of claim 4, wherein: The movable groove (4) is opened on the worktable (12), and also includes a stop member fixed on the worktable (12) of the movable groove (4), and a limiting part (5) is opened on the inner wall of the stop member.
6. The perforating gun quick clamp of claim 4, wherein: At least one support member (13) is also installed on the workbench (12). The support member (13) has a wedge-shaped support groove (14), and the inclined surface of the wedge-shaped support groove (14) forms a support surface.
7. The perforating gun quick clamp of claim 6, wherein: At least one side of each of the side clamping components (2) is fitted with a support (13).
8. The perforating gun quick clamp of claim 7, wherein: An auxiliary baffle (15) is installed on at least one support member (13).