Clamping tool for machining vibration sensor shell

Abstract

The utility model relates to a clamping tool for processing a vibration sensor shell, which comprises a shell placing platform, a first driving source, a second driving source, a first clamping device and a second clamping device, the clamping arms are arranged on the shell placing platform in a swinging and circumferential array manner, and are used for clamping the vibration sensor shell on the shell placing platform; the connecting rod arm is movably arranged on the shell placing platform; the first driving source can drive the connecting rod arm to move back and forth in a reciprocating mode. The clamping tool specially used in the machining process of the vibration sensor shell aims to provide a stable, reliable and efficient clamping solution for high-precision machining of the vibration sensor shell, it is ensured that the shell can be accurately positioned and firmly clamped in the machining process, and the machining precision of the vibration sensor shell is improved. Therefore, strict requirements of the processing technology of the vibration sensor shell on precision and quality are met.

Description

Technical Field

[0001] This utility model relates to the field of machining tooling and fixture technology, and in particular to a clamping tooling for machining vibration sensor housings. Background Technology

[0002] In the manufacturing process of vibration sensors, the housing is a crucial component, and its machining accuracy directly affects the performance and reliability of the vibration sensor. Traditional vibration sensor housing machining fixtures often have many shortcomings.

[0003] Some fixtures lack precision in controlling clamping force, easily leading to housing deformation due to excessive force. This affects the dimensional accuracy and internal structural stability of the housing, consequently reducing the sensitivity and measurement accuracy of the vibration sensor. Conversely, insufficient clamping force cannot guarantee the stability of the housing during processing, easily causing displacement or wobbling, resulting in increased processing errors and a higher scrap rate. Furthermore, traditional fixtures have poor versatility. For vibration sensor housings of different sizes and shapes, different fixtures or complex adjustments are often required. This not only increases processing costs and preparation time but also easily introduces human error due to frequent fixture changes, reducing production efficiency and product quality stability. Moreover, during clamping, traditional fixtures have limited positioning accuracy for the housing, failing to meet the stringent positional accuracy requirements of modern high-precision machining processes. This can lead to poor fit between the machined housing and other components during assembly, affecting the overall quality and performance of the vibration sensor. Therefore, developing a new type of clamping fixture for vibration sensor housing processing is of paramount practical significance. Summary of the Invention

[0004] The purpose of this utility model is to provide a clamping fixture specifically for the processing of vibration sensor housings. It aims to provide a stable, reliable and efficient clamping solution for the high-precision processing of vibration sensor housings, ensuring that the housing can be accurately positioned and firmly clamped during the processing, so as to meet the strict requirements of the vibration sensor housing processing technology for precision and quality, and solve the above-mentioned technical problems.

[0005] To achieve the above technical solution, the technical solution of this utility model is as follows: A clamping fixture for processing vibration sensor housings mainly consists of a housing placement platform, a first drive source, clamping arms, and connecting rod arms. The housing placement platform serves as the basic load-bearing structure of the entire fixture, providing space for the placement and initial positioning of the vibration sensor housing. The first drive source is fixedly installed at the bottom of the housing placement platform and is the power core of the entire fixture, providing the necessary power for the clamping action. The clamping arms are arranged in a circumferential array on the housing placement platform in a swingable manner; their main function is to perform precise and stable clamping operations on the vibration sensor housing placed on the housing placement platform. The connecting rod arms are movably installed on the housing placement platform and connected to the first drive source. The first drive source can drive the connecting rod arms to move back and forth. Through a clever mechanical transmission structure, when the first drive source drives the connecting rod arms downwards, it can drive the circumferentially arrayed clamping arms to move closer together along the radial direction of the housing placement platform, thereby achieving effective clamping of the vibration sensor housing.

[0006] Furthermore, a cylinder is selected as the primary drive source. The cylinder is securely fastened to the bottom of the housing placement platform using fasteners, and its telescopic rod extends into the interior of the platform. As a commonly used power component, the cylinder offers advantages such as simple structure, stable output force, rapid action, and ease of control. In this fixture, by adjusting the cylinder's inlet pressure and flow rate, the extension length and speed of its telescopic rod can be precisely controlled, thereby achieving precise control of the clamping force and clamping speed of the clamping arm. This choice of power source can meet the requirements of different machining processes regarding the clamping force and clamping speed of the housing. For example, during rough machining, the cylinder's inlet pressure can be appropriately increased to allow the clamping arm to quickly and firmly clamp the housing, resisting larger cutting forces; while during finish machining, the inlet pressure can be reduced to ensure housing stability and avoid damage to the housing due to excessive clamping force.

[0007] Furthermore, the clamping arm mainly consists of a swing base, a clamping arm, and a contouring extrusion head. The swing base is fixedly mounted on the housing platform, providing a stable fulcrum for the clamping arm's swing. The clamping arm is swingably mounted on the swing base and features a unique structural design, including a main body and an inclined, extended push arm. Both the main body and the push arm have inner rotating grooves, and the length of the push arm is much greater than the length of the main body. This structural design allows the clamping arm to swing flexibly with the swing base as a fulcrum when under force, and through the lever action of the push arm, a smaller driving force can be converted into a larger clamping force, improving clamping efficiency and reliability. The contouring extrusion head, which can swing at one end of the clamping arm, is the part that directly contacts the vibration sensor housing. The shape of the contouring extrusion head is precisely designed according to the outer contour of the vibration sensor housing, allowing it to fit tightly against the housing surface. During clamping, it not only evenly distributes the clamping force, preventing excessive local stress and deformation of the housing, but also further improves the positioning accuracy of the housing, ensuring that the housing does not shift or rotate during processing.

[0008] Furthermore, the linkage arm consists of a pull seat, a pull rod, an elastic element, and a drive arm. The pull seat is movably mounted on the housing placement platform, with drive arms arranged in a circumferential array on its periphery, allowing the pull seat to move smoothly on the housing placement platform. The pull rod is arranged in a circumferential array on the pull seat, with one end hinged to the clamping arm. Through this connection, when the pull seat moves, the pull rod can transmit the movement of the pull seat to the clamping arm, thereby driving the clamping arm to perform a swinging clamping action. An elastic element is inserted into the pull seat, with one end connected to the housing placement platform. The elastic element plays an important role in buffering and resetting in the tooling. When the first drive source moves the linkage arm downward, causing the clamping arm to clamp the housing, the elastic element is compressed, storing a certain amount of elastic potential energy. When processing is completed, when the first drive source moves the linkage arm upward, the elastic element releases the elastic potential energy, pushing the pull seat back to its original position, and then causing the clamping arm to release the housing, making the entire clamping process more stable and reliable. The pull seat has a through-hole along its axis. The guide hole cooperates with the guide structure on the housing platform to precisely guide the movement of the pull seat, ensuring that the pull seat will not deviate or shake during the movement, thereby ensuring the accuracy and consistency of the clamping arm's clamping action.

[0009] Furthermore, the housing placement platform consists of parallel connecting bases and bearing seats, connected by support columns. This structural design provides the housing placement platform with sufficient strength and stability to withstand various external forces during processing. Guide columns are provided between adjacent connecting bases and bearing seats, integrally formed with the bearing seats, and each guide column has a protruding columnar guide arm extending radially outward. The guide columns and guide arms provide a precise guiding path for the movement of the linkage arm, ensuring that the linkage arm can move smoothly in a predetermined direction under the drive of the first drive source. This also helps improve the assembly accuracy and structural stability of the entire fixture, providing a reliable foundation for the precise machining of the vibration sensor housing.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1) The clamping arms are arranged in a circumferential array on the housing placement platform. This layout allows for uniform force application to the vibration sensor housing from multiple directions. When the first drive source moves the connecting arm downward, causing the clamping arms to converge and clamp radially along the housing placement platform, the contour-following extrusion heads of each clamping arm can closely conform to the outer contour of the housing. Regardless of whether the housing is circular, square, or other complex shapes, stable clamping can be achieved from all directions. For example, for a circular housing, the circumferential array of clamping arms can be evenly distributed on the circumference. The applied clamping force can effectively constrain the housing in both the radial and tangential directions, preventing displacement or rotation due to uneven force during processing and ensuring processing accuracy.

[0012] 2) The clamping arm has a unique clamping arm structure, with an ingenious design of a push arm extending obliquely on one side of the body and inner rotating grooves on both the body and the push arm. The length of the push arm is much greater than the length of the body. This lever structure allows a smaller driving force to be converted into a larger clamping force when the linkage arm drives the clamping arm to swing. Moreover, the rotating groove provides a stable rotation fulcrum and guide for the swinging of the clamping arm, ensuring the accuracy and consistency of the clamping arm's movement, further improving the stability and reliability of clamping, and ensuring that the housing maintains a precise position throughout the processing.

[0013] 3) The contour-following extrusion head, which can swing at one end of the clamping arm, is custom-designed to fit the outer contour of the vibration sensor housing. Its shape closely conforms to the housing surface, and during clamping, it not only evenly distributes the clamping force, preventing excessive localized stress and deformation of the housing, but also provides precise positioning. For example, during drilling of the housing, the precise positioning of the contour-following extrusion head ensures minimal deviation between the drilling position and the housing's design requirements, improving machining accuracy, reducing scrap rates due to inaccurate positioning, and enhancing product quality.

[0014] 4) The primary drive source is a cylinder, which is fastened to the bottom of the housing platform with fasteners. Its structure is simple and securely installed. As a power source, the cylinder features stable output force, rapid action, and easy control. By adjusting the cylinder's inlet pressure and flow rate, the extension length and speed of its telescopic rod can be precisely controlled, thereby achieving precise control of the clamping force and speed of the clamping arm. During rough machining, the cylinder's inlet pressure can be increased, allowing the clamping arm to quickly and forcefully clamp the housing to resist larger cutting forces. During finish machining, the inlet pressure can be reduced, ensuring housing stability and preventing damage to the housing due to excessive clamping force. This improves the tooling's adaptability to different machining processes, effectively protects the vibration sensor housing, and extends the tooling's service life.

[0015] 5) The linkage arm consists of a pull seat, pull rods, and elastic elements. The circumferential array of drive arms on the pull seat's periphery is connected to the first drive source (cylinder). When the cylinder's extension rod extends or retracts, it smoothly propels the pull seat forward. The circumferential array of pull rods on the pull seat is hinged to the clamping arm. This connection ensures effective force transmission, converting the linear motion of the pull seat into the swinging motion of the clamping arm, thus achieving precise drive of the clamping arm. One end of the elastic element inserted on the pull seat is connected to the housing platform. During clamping, the elastic element is compressed, acting as a buffer to prevent impact damage to the housing and tooling components caused by sudden changes in clamping force. When machining is complete and the cylinder's extension rod retracts, the elastic element releases its elastic potential energy, pushing the pull seat back to its original position, which in turn causes the clamping arm to release the housing. This makes the entire clamping process smoother and more reliable, reduces wear on tooling components, and improves the tooling's working efficiency and stability.

[0016] 6) The housing placement platform consists of parallel connecting bases and bearing seats, connected by support columns between adjacent connecting bases and bearing seats. This structural design gives the housing placement platform sufficient strength and stability to withstand various external forces during processing. For example, in milling, drilling, and other machining operations, even with large cutting forces and vibrations, the housing placement platform can remain stable, providing a reliable support foundation for the vibration sensor housing and ensuring that machining accuracy is not affected.

[0017] 7) The guide post between adjacent connecting bases and bearing seats is integrally formed with the bearing seat, and the guide post has a protruding columnar guide arm along the radial direction. The guide post and guide arm provide a precise guiding path for the movement of the connecting rod arm, ensuring that the connecting rod arm moves smoothly along the predetermined direction under the drive of the first drive source. At the same time, this guiding structure also helps to improve the assembly accuracy of the entire tooling, making the connection and fit between the components tighter and more accurate, reducing the processing errors caused by loosening or deformation of the tooling structure, further enhancing the durability of the tooling, and reducing the maintenance cost of the tooling. Attached Figure Description

[0018] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0019] Figure 1 A 3D drawing of the clamping fixture. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Please see the appendix Figure 1 As shown: A clamping fixture for machining vibration sensor housings includes a housing placement platform 1. The clamping fixture for machining vibration sensor housings further includes:

[0023] The first drive source 2 is fixed at the bottom of the first drive source 2 and is used to provide power;

[0024] Clamping arms 3, which are swingable and arranged in a circular array on the housing placement platform 1, are used to clamp the vibration sensor housing on the housing placement platform 1; and

[0025] Linkage arm 4 is movably mounted on the housing placement platform 1; the first drive source 2 can drive the linkage arm 4 to reciprocate back and forth.

[0026] Wherein: when the first driving source 2 drives the connecting arm 4 to move down, the clamping arms 3 of the circumferential array are driven to move closer together and clamp along the radial direction of the housing placement platform 1.

[0027] Based on the above embodiments, the first driving source 2 is a cylinder; the cylinder is fastened to the bottom of the housing placement platform 1 by fasteners, and the telescopic rod extends through the interior of the housing placement platform 1.

[0028] Based on the above embodiments, the clamping arm 3 includes a swing seat 31 fixed on the housing placement platform 1; the swing seat 31 is swayably provided with a clamping arm 32; one end of the clamping arm 32 is swayably provided with a contour extrusion head 33.

[0029] Based on the above embodiments, the clamping arm 32 includes a body; a push arm extends obliquely from one side of the body; both the body and the push arm are provided with inner rotating grooves; the length of the push arm is much greater than the length of the body.

[0030] Based on the above embodiments, the linkage arm 4 includes a pull seat 41 movably disposed on the housing placement platform 1; the pull seat 41 is provided with a circumferential array of pull rods 42; the pull rods 42 are hinged to one end of the clamping arm 3; an elastic element 43 is inserted into the pull seat 41; one end of the elastic element 43 is connected to the housing placement platform 1.

[0031] Based on the above embodiments, the pull seat 41 is provided with a drive arm arranged in a circular array on its circumference; the pull seat 41 is provided with a through-row elongated guide hole along its axis.

[0032] Based on the above embodiments, the housing placement platform 1 includes a connecting base 11 and a support base 12 arranged in parallel, and adjacent connecting bases 11 and support bases 12 are connected by support columns; a guide column is provided between adjacent connecting bases 11 and support bases 12.

[0033] Based on the above embodiments, the guide post and the bearing seat 12 are integrally formed; the guide post is provided with a protruding columnar guide arm along the radial direction.

[0034] When using this clamping fixture, first place the vibration sensor housing on the support seat of the housing placement platform, at which point the housing is in a preliminary positioning state. Then, start the first drive source (cylinder), and the cylinder's extension rod begins to extend, pushing the connecting arm's pull seat downwards. During the downward movement of the pull seat, the pull rods arranged in a circumferential array on the pull seat will displace with the movement of the pull seat. Since the pull rods are hinged to the clamping arm, the displacement of the pull rods will drive the clamping arm to swing around the swing seat as a fulcrum. During the swinging process, the lever action of the clamping arm's push arm will cause the contouring extrusion head to gradually approach the housing and eventually fit tightly against the housing surface, achieving the clamping operation. During the clamping process, the elastic element is compressed, storing energy for the fixture's release action. Throughout the entire processing, because the contouring extrusion head of the clamping arm fits tightly against the housing, and the clamping force is stable and uniform, it can effectively prevent the housing from shifting, rotating, or deforming during processing. For example, during machining operations such as drilling and milling, the housing can maintain a precise position even under large cutting forces, ensuring that the machining accuracy meets the requirements. After machining is completed, the cylinder's telescopic rod retracts, and the pull seat moves upward and resets under the elastic potential energy of the elastic element. The pull rod then drives the clamping arm to swing in the opposite direction, and the contour extrusion head releases the housing. At this point, the machined vibration sensor housing can be removed from the housing placement platform, ready for the machining of the next housing.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A clamping fixture for machining vibration sensor housings, comprising a housing placement platform (1), characterized in that, The clamping fixture used for machining vibration sensor housings also includes: The first drive source (2) is fixed at the bottom of the first drive source (2) and is used to provide power; Clamping arms (3), which are swingable and arranged in a circular array on the housing placement platform (1), are used to clamp the vibration sensor housing on the housing placement platform (1); and The linkage arm (4) is movably mounted on the housing placement platform (1); the first drive source (2) can drive the linkage arm (4) to move back and forth. Wherein: when the first driving source (2) drives the connecting arm (4) to move down, the clamping arm (3) of the circumferential array moves closer and clamps along the radial direction of the housing placement platform (1).

2. The clamping fixture for machining a vibration sensor housing as described in claim 1, characterized in that: The first drive source (2) is a cylinder; the cylinder is fastened to the bottom of the housing placement platform (1) by fasteners, and the telescopic rod extends into the interior of the housing placement platform (1).

3. The clamping fixture for machining a vibration sensor housing as described in claim 1, characterized in that: The clamping arm (3) includes a swing seat (31) fixed on the housing placement platform (1); the swing seat (31) is provided with a swing arm (32); one end of the swing arm (32) is provided with a contour extrusion head (33).

4. The clamping fixture for machining a vibration sensor housing as described in claim 3, characterized in that: The clamping arm (32) includes a body; a push arm extends obliquely from one side of the body; both the body and the push arm have inner rotating grooves; the length of the push arm is much greater than the length of the body.

5. The clamping fixture for machining a vibration sensor housing as described in claim 1, characterized in that: The linkage arm (4) includes a pull seat (41) movably mounted on the housing placement platform (1); the pull seat (41) is provided with a circumferential array of pull rods (42); the pull rods (42) are hinged to one end of the clamping arm (3); an elastic element (43) is inserted into the pull seat (41); one end of the elastic element (43) is connected to the housing placement platform (1).

6. The clamping fixture for machining a vibration sensor housing as described in claim 5, characterized in that: The pull seat (41) is provided with a drive arm arranged in a circular array on its circumference; the pull seat (41) is provided with a through-type elongated guide hole along its axis.

7. The clamping fixture for machining a vibration sensor housing as described in claim 1, characterized in that: The housing placement platform (1) includes a connecting base (11) and a support base (12) arranged in parallel, and adjacent connecting bases (11) and support bases (12) are connected by support columns; a guide column is provided between adjacent connecting bases (11) and support bases (12).

8. The clamping fixture for machining a vibration sensor housing as described in claim 7, characterized in that: The guide post and the bearing seat (12) are integrally formed; the guide post is provided with a protruding columnar guide arm along the radial direction.

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