Connecting piece and connecting structure used between hole type servo electric cylinder and pressure sensor

Abstract

The utility model discloses a connecting piece and a connecting structure used between a hole type servo electric cylinder and a pressure sensor in the technical field of high-precision servo pressure control, the connecting piece comprises a connecting flange and a connecting stud, the connecting flange is provided with a connecting sleeve, a communicating hole and a flange plate, the connecting sleeve is used for being coaxially connected with an output shaft of the hole type servo electric cylinder in a sleeved mode, the communicating hole is communicated with the connecting sleeve, and an anti-rotation part used for preventing the connecting flange from rotating is arranged on the outer edge of the flange plate. The connecting stud comprises an upper stud and a lower stud which are coaxially arranged, the upper stud penetrates through the communicating hole and is in threaded connection with an output shaft of the hole type servo electric cylinder, and the lower stud is arranged on the lower side of the connecting flange and is in threaded connection with the pressure sensor. According to the connecting piece provided by the utility model, through the connecting flange and the connecting stud, the matching problem of the hole-type servo motor and the pressure sensor can be solved, the universality between the hole-type servo motor and the pressure sensor is improved, the force transmission path is optimized, and the structural rigidity is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-precision servo pressure control technology, and in particular to a connector and connection structure for a bore-type servo electric cylinder and a pressure sensor. Background Technology

[0002] In industrial fields such as automation control, precision press fitting, and material testing, orifice-type servo electric cylinders are widely used due to their high precision and high response speed. To achieve precise closed-loop control of the output pressure, a pressure sensor is typically integrated into the output end of the orifice-type servo electric cylinder. However, in practical applications, the connection interface between the output end of the orifice-type servo electric cylinder and the pressure sensor often suffers from specification mismatch, and the performance of the connection structure directly affects the stability, accuracy, and reliability of pressure measurement and control. Existing technologies typically use simple adapter plates or non-standard connectors to connect the orifice-type servo electric cylinder to the pressure sensor, or directly connect via a threaded structure at the shaft end. These methods generally suffer from poor versatility, inadequate force transmission paths, difficulties in installation and alignment, and insufficient structural rigidity. Utility Model Content

[0003] The purpose of this utility model is to provide a connector for a bore-type servo electric cylinder and a pressure sensor, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] A connector for use between a bore-type servo cylinder and a pressure sensor, the connector having a vertically extending central axis, the connector comprising:

[0006] A connecting flange has a connecting sleeve, a communicating hole, and a flange plate. The connecting sleeve and the communicating hole both extend along the central axis. The connecting sleeve is used to coaxially connect with the output shaft of the bore-type servo electric cylinder. The communicating hole passes through the flange plate and communicates with the connecting sleeve. The outer edge of the flange plate is provided with an anti-rotation part to prevent the connecting flange from rotating.

[0007] The connecting stud includes an upper stud and a lower stud, which are coaxially and fixedly connected along the central axis. The upper stud passes through the connecting hole and is threadedly connected to the output shaft of the bore-type servo cylinder. The lower stud is located on the lower side of the connecting flange and is used for threaded connection with a pressure sensor.

[0008] The connector provided by this utility model for connecting a bore-type servo cylinder and a pressure sensor has at least the following beneficial effects: The connecting flange can be connected to the output shaft of the bore-type servo cylinder via a connecting sleeve. The anti-rotation part allows the connecting flange and the connecting stud to rotate relative to each other, thereby locking the upper stud passing through the connecting hole to the output shaft of the bore-type servo cylinder, and locking the lower stud to the pressure sensor via a threaded connection, thus realizing the transmission connection between the bore-type servo motor and the pressure sensor. The connecting flange and connecting stud solve the compatibility problem between the bore-type servo motor and the pressure sensor, greatly improving their versatility. The axial output force of the bore-type servo motor is transmitted to the pressure sensor through the connecting flange, and the mutual locking through the connecting studs optimizes the force transmission path and improves structural rigidity.

[0009] As a further improvement to the above technical solution, the connecting sleeve is in the shape of a hollow cylinder, the connecting sleeve is open upwards, and the connecting hole is connected to the lower end of the connecting sleeve.

[0010] As a further improvement to the above technical solution, a keyed connection structure is provided between the connecting sleeve and the output shaft of the bore servo cylinder. The output shaft of the bore servo cylinder is provided with a protruding flat key, and the connecting sleeve is provided with a corresponding keyway.

[0011] As a further improvement to the above technical solution, the flange is in the shape of a disc, and the anti-rotation part is a plurality of slots evenly distributed around the circumference.

[0012] As a further improvement to the above technical solution, the flange is in the shape of a regular hexagonal plate, and the anti-rotation part is a pair of parallel planes.

[0013] As a further improvement to the above technical solution, the connecting stud also includes a middle plate, and the upper stud and the lower stud are respectively disposed on the upper and lower sides of the middle plate.

[0014] As a further improvement to the above technical solution, the middle plate is hexagonal in shape.

[0015] As a further improvement to the above technical solution, the connecting stud is a one-piece molded part.

[0016] This utility model also provides a connection structure, including: a bore-type servo cylinder, a pressure sensor, and the aforementioned connector; the bore-type servo cylinder has a cylindrical output end, which is embedded in the connecting sleeve; the upper stud passes through the connecting hole and is coaxially threaded to the output end; the lower stud is threaded to the pressure sensor; the output end is axially pressed against the bottom of the connecting sleeve; and the connecting flange abuts against the pressure sensor.

[0017] This utility model also provides a connection structure, including: a bore-type servo cylinder, a pressure sensor, and the aforementioned connector; the bore-type servo cylinder has a cylindrical output end, which is embedded in the connecting sleeve; the upper stud passes through the connecting hole and is coaxially threaded to the output end; the lower stud is threaded to the pressure sensor; the output end is axially pressed against the bottom of the connecting sleeve; the connecting flange abuts against the upper side of the middle plate; and the lower side of the middle plate abuts against the pressure sensor. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a side view of an embodiment of the connection structure provided by this utility model;

[0020] Figure 2 This is a side exploded view of an embodiment of the connection structure provided by this utility model;

[0021] Figure 3 This is an exploded perspective view of an embodiment of the connection structure provided by this utility model;

[0022] Figure 4 This is a three-dimensional exploded view of another embodiment of the connection structure provided by this utility model;

[0023] Figure 5 This is a three-dimensional exploded view of two embodiments of the connection structure provided by this utility model.

[0024] In the diagram: 100-Hole type servo electric cylinder, 110-Flat key, 200-Connecting flange, 210-Connecting sleeve, 211-Keyway, 220-Connecting hole, 230-Flange, 231-Anti-rotation part, 300-Connecting stud, 310-Upper stud, 320-Lower stud, 330-Middle plate, 400-Pressure sensor. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0027] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 5 The connector of this utility model for the connection between the bore-type servo electric cylinder and the pressure sensor is shown in the following embodiment:

[0030] A connector for connecting a bore-type servo cylinder 100 and a pressure sensor includes a connecting flange 200 and a connecting stud 300. The connector has a vertically extending central axis. The connecting flange 200 has a connecting sleeve 210, a communicating hole 220, and a flange 230. Both the connecting sleeve 210 and the communicating hole 220 extend along the central axis. The connecting sleeve 210 is coaxially fitted with the output shaft of the bore-type servo cylinder 100. The communicating hole 220 passes through the flange 230 and communicates with the connecting sleeve 210. The outer edge of the flange 230 is provided with an anti-rotation portion 231 to prevent rotation of the connecting flange 200.

[0031] The connecting stud 300 includes an upper stud 310 and a lower stud 320, both of which are coaxially arranged along the central axis. The upper stud 310 passes through the connecting hole 220 and is threadedly connected to the output shaft of the bore-type servo cylinder 100. The lower stud 320 is located on the lower side of the connecting flange 200 and is used for threaded connection with the pressure sensor 400.

[0032] In practical use, the connecting flange 200 can be connected to the output shaft of the bore servo cylinder 100 via the connecting sleeve 210. The anti-rotation part 231 allows the connecting flange 200 and the connecting stud 300 to rotate relative to each other, thereby locking the upper stud 310, which passes through the connecting hole 220, to the output shaft of the bore servo cylinder 100, and locking the lower stud 320 to the pressure sensor 400 via a threaded connection, thus achieving the transmission connection between the bore servo motor and the pressure sensor 400. The connecting flange 200 and the connecting stud 300 solve the compatibility problem between the bore servo motor and the pressure sensor 400, greatly improving their versatility. The axial output force of the bore servo motor is transmitted to the pressure sensor 400 through the connecting flange 200, and simultaneously locked together by the connecting studs 300, optimizing the force transmission path and improving structural rigidity.

[0033] It is worth noting that the central axis is a virtual feature, set up to facilitate accurate description of the structure of the connector.

[0034] In this embodiment, the connecting sleeve 210 is a hollow cylindrical shape, the connecting sleeve 210 is a cylindrical groove shape and open upwards, the output shaft end of the hole-type servo cylinder 100 is embedded in the connecting sleeve 210, and the connecting hole 220 passes through the flange 230 along the axial direction to connect to the lower end of the connecting sleeve 210.

[0035] The connecting sleeve 210 is sleeved along the axis of the output shaft of the bore servo cylinder 100 to achieve synchronous rotation between the output shaft of the bore servo cylinder 100 and the connecting flange 200. A keyed connection structure is provided between the connecting sleeve 210 and the output shaft of the bore servo cylinder 100. The output shaft of the bore servo cylinder 100 is provided with a flat key 110 protruding from its outer periphery, and the connecting sleeve 210 is provided with a keyway 211 corresponding to the flat key 110. When the connecting sleeve 210 is sleeved on the outside of the output shaft of the bore servo cylinder 100, the flat key 110 is embedded in the keyway 211.

[0036] In some embodiments, the flange 230 is disc-shaped, and the anti-rotation portion 231 is a plurality of slots evenly arranged circumferentially. (Refer to the attached document.) Figures 1 to 4 The flange 230 has six vertically extending slots evenly distributed on its outer periphery. Two of the slots can be clamped by a corresponding wrench to prevent the output shaft of the connecting flange 200 from rotating with the hole-type servo cylinder 100, so that the upper stud 310 can be threadedly locked and fixed with the output shaft of the hole-type servo cylinder 100.

[0037] In other embodiments, the flange 230 is in the shape of a regular hexagonal plate, such as... Figure 5As shown, the anti-rotation part 231 consists of a pair of parallel planes. In actual use, by wedging the pair of planes between the openings of the wrench, rotation of the output shaft of the connecting flange 200 and the bore servo cylinder 100 is prevented.

[0038] This application also provides a connection structure, including: a bore-type servo electric cylinder 100, a pressure sensor 400, and a connector as described in the above embodiments.

[0039] The orifice-type servo electric cylinder 100 has a cylindrical output end, which is embedded in the connecting sleeve 210.

[0040] like Figures 1 to 4 As shown, in the first embodiment, the connecting stud 300 is in the shape of a variable-diameter cylinder. The upper stud 310 passes through the connecting hole 220 and is coaxially threaded to the output end, the lower stud 320 is threaded to the pressure sensor 400, the output end is axially pressed against the bottom of the connecting sleeve 210, and the connecting flange 200 abuts against the pressure sensor 400.

[0041] In the second embodiment, the connecting stud 300 further includes a middle plate 330, with the upper stud 310 and lower stud 320 respectively disposed on the upper and lower sides of the middle plate 330. The middle plate 330 is plate-shaped, and both the upper and lower end faces of the middle plate 330 are perpendicular to the central axis.

[0042] The middle plate 330 is in the shape of a regular polygonal prism. The outer periphery of the middle plate 330 has multiple pairs of parallel planes. The middle plate 330 can be clamped and fixed by the paired planes, thereby realizing the relative rotation between the connecting stud 300 and the connecting flange 200 or the pressure sensor 400.

[0043] The connecting stud 300 is an integrally formed part. The upper stud 310, the middle plate 330 and the lower stud 320 are integrally connected. The upper stud 310 and the lower stud 320 are formed with external threads by turning.

[0044] like Figure 5 As shown, in the second embodiment, the upper stud 310 passes through the connecting hole 220 and is coaxially threaded to the output end, the lower stud 320 is threaded to the pressure sensor 400, the output end is axially pressed against the bottom of the connecting sleeve 210, the connecting flange 200 abuts against the upper side of the middle plate 330, and the lower side of the middle plate 330 abuts against the pressure sensor 400.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention. All such changes, modifications, equivalent alterations or substitutions are included within the scope defined by the claims of this application, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connection for use between a hole-type servo cylinder and a pressure sensor, characterized in that: The connecting piece has an up-and-down extending middle axis, and comprises: a connecting flange having a connecting sleeve, a communicating hole and a flange plate, the connecting sleeve and the communicating hole both extend along the middle axis, the connecting sleeve is used for coaxially sleeving with an output shaft of a hole type servo cylinder, the communicating hole penetrates through the flange plate and communicates with the connecting sleeve, and an anti-rotation part for preventing the connecting flange from rotating is arranged on the outer edge of the flange plate; a connecting stud including an upper stud and a lower stud, the upper stud and the lower stud are coaxially fixedly connected along the middle axis, the upper stud is arranged in the communicating hole and is threadedly connected with the output shaft of the hole type servo cylinder, and the lower stud is arranged on the lower side of the connecting flange and is used for threadedly connecting with a pressure sensor.

2. A connection for a borehole servocylinder and pressure sensor according to claim 1, characterised in that: The connecting sleeve is in the shape of a hollow cylinder, the connecting sleeve is open upward, and the communicating hole communicates with the lower end of the connecting sleeve.

3. A connection for a borehole servocylinder and pressure sensor according to claim 2, wherein: A key connection structure is arranged between the connecting sleeve and the output shaft of the hole type servo cylinder, the output shaft of the hole type servo cylinder is provided with a convex flat key, and the connecting sleeve is provided with a corresponding key groove.

4. A connection for a borehole servocylinder and pressure sensor according to claim 1, wherein: The flange plate is in the shape of a disc, and the anti-rotation part is a plurality of clamping grooves uniformly arranged and distributed in the circumferential direction.

5. A connection for a borehole servo cylinder and pressure sensor according to claim 1, wherein: The flange plate is in the shape of a regular hexagonal plate, and the anti-rotation part is a pair of parallel planes.

6. A connection for a borehole servo cylinder and pressure sensor according to claim 1, wherein: The connecting stud further includes a middle plate, and the upper stud and the lower stud are arranged on the upper side and the lower side of the middle plate respectively.

7. A connection for a borehole servocylinder and pressure sensor according to claim 6, wherein: The middle plate is in the shape of a hexagonal plate.

8. A connection for a borehole servo cylinder and pressure sensor according to claim 6, wherein: The connecting stud is an integral molding.

9. A connection structure characterized by comprising: It comprises: a hole type servo cylinder, a pressure sensor and the connecting piece according to any one of claims 1 to 4; the hole type servo cylinder has an output end in the shape of a cylinder, the output end is embedded in the connecting sleeve, the upper stud passes through the communicating hole and is coaxially threadedly connected with the output end, the lower stud is threadedly connected with the pressure sensor, the output end is axially abutted against the bottom of the connecting sleeve, and the connecting flange is abutted against the pressure sensor.

10. A connection structure characterized by comprising: It comprises: a hole type servo cylinder, a pressure sensor and the connecting piece according to any one of claims 6 to 8; the hole type servo cylinder has an output end in the shape of a cylinder, the output end is embedded in the connecting sleeve, the upper stud passes through the communicating hole and is coaxially threadedly connected with the output end, the lower stud is threadedly connected with the pressure sensor, the output end is axially abutted against the bottom of the connecting sleeve, the connecting flange is abutted against the upper side of the middle plate, and the lower side of the middle plate is abutted against the pressure sensor.

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