Clamp

Abstract

The utility model discloses a clamp which comprises two handles which are connected in a hinged mode, and the other ends of the two handles are provided with a first clamping portion and a second clamping portion respectively. Clamping heads are arranged at the tail ends of the first clamping part and the second clamping part, and a target device is clamped through the clamping heads; the target device is a thermocouple or a sensor on the aero-engine temperature and pressure measuring device. A thermocouple or a sensor to be installed is clamped by a corresponding clamping head through the clamp and then installed and welded with a main body, so that the installation point positions are unified to a great extent, the thin wall (0.2 mm / 0.5 mm) shape of the thermocouple and the sensor is protected, clamping damage and deformation are prevented, and meanwhile, the good consistency of the installation size of a measuring point is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aero-engine measuring device, specifically relates to a clamp. BACKGROUND

[0002] In the aero-engine type test flight test technology research, the pressure and temperature of each section of aero-engine need to be collected to obtain the test flight data, so as to be used for type test flight evaluation.

[0003] In the production process of aero-engine temperature and pressure measuring device, the development of measuring point structure has a key influence on the collection of test data. In order to improve the machining precision of measuring point structure, the installation size precision of thermocouple and sensor needs to be strictly controlled, so as to facilitate the installation of thermocouple and sensor on the measuring point structure.

[0004] At present, the installation of thermocouple and sensor mainly adopts manual operation, which can easily cause the deformation of the thin wall of thermocouple and sensor, thereby causing large up-down deviation of installation size. UTILITY MODEL CONTENTS

[0005] The utility model provides a clamp, and aims at solving the above problems in the background art.

[0006] The technical solution provided by the utility model is as follows:

[0007] A clamp, comprising two hinged handles, and first clamping parts and second clamping parts are arranged at the other ends of the two handles respectively;

[0008] The ends of the first clamping parts and the second clamping parts are provided with clamping heads, and the clamping heads are used for clamping target devices;

[0009] The target devices are thermocouples or sensors on aero-engine temperature and pressure measuring devices.

[0010] Further, the two handles are hinged through bolts and nuts.

[0011] Further, the cross section of the clamping head after closure is a circular column structure.

[0012] Further, the wall thickness of the thermocouple or sensor is 0.2-0.5mm.

[0013] Further, the clamping head comprises three specifications of 2mm, 3mm or 4mm.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model provides a kind of aeroengine measuring device thermocouple and sensor series special fixture, corresponding clamping head is clamped to the thermocouple or sensor to be installed by the fixture, then with main body welding, installation point is unified to a great extent, the thin wall (0.2mm / 0.5mm) shape of thermocouple and sensor is protected, prevent clamping injury deformation, guarantee the installation size consistency of measuring point good simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 For the structure of the fixture in the utility model embodiment Figure 1 ;

[0017] Figure 2 For the fixture in the utility model embodiment usage state diagram.

[0018] Reference signs are as follows:

[0019] 101-handle, 102-bolt, 103-first clamping site, 104-second clamping site, 105-clamping head, 100-target device. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the following described embodiments are part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the drawings is intended to represent only selected embodiments of the present application, not to limit the scope of the present application claimed. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of the present application.

[0022] It should be understood that, in the description of the embodiments of the present application, the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0023] In the description of the embodiments of the present application, it should be noted that, unless otherwise specifically specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0024] Referring to Figures 1-2 The present application provides a clamp, which comprises two hinged handles 101, and first and second clamping parts 103 and 104 are respectively arranged at the other end of the two handles 101.

[0025] The first clamping part 103 and the second clamping part 104 are provided with a clamping head 105 at the end, and the clamping head 105 is used to clamp the target device 100.

[0026] The target device 100 is a thermocouple or sensor on an aero-engine temperature and pressure measuring device.

[0027] In this embodiment, the thermocouple or sensor is a thermocouple or sensor on an aero-engine temperature and pressure measuring device. When in use, the thermocouple or sensor to be processed is installed or disassembled by the clamping head 105.

[0028] Optionally, the two handles 101 are hinged by bolts 102 and nuts.

[0029] Optionally, the cross section of the clamping head 105 after being closed is a circular column structure.

[0030] As shown in the figure, the clamping head 105 is arranged at the end of the first clamping part 103 and the second clamping part 104, the clamping head 105 is composed of two symmetrical parts, and the two parts can be closed to form a hollow or solid column structure. Figure 1 The use method of the clamping head 105 is shown. Figure 2

[0031] Optionally, the wall thickness of the thermocouple or sensor is 0.2-0.5mm.

[0032] Optionally, the clamping head 105 includes three specifications of 2mm, 3mm or 4mm.

[0033] Since the thermocouple and the dynamic pressure sensor are both thin-walled (0.2-0.5mm) parts, they are not easy to position during production and processing, and clamping and fixing by using conventional tools can easily cause deformation. The application of the clamp avoids the occurrence of such situations, and improves the positioning accuracy.

[0034] In summary, the utility model provides a kind of special fixture of aero-engine measuring device thermocouple and sensor series, through the fixture, the corresponding clamping head is clamped to the thermocouple or sensor to be installed, then with main group welding, in a large extent, the installation point is unified, the thin-walled (0.2mm / 0.5mm) shape of thermocouple and sensor is protected, prevents clamping deformation, while ensuring that the installation size of measuring point is good consistency.

[0035] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​

Claims

1. A clamp, characterized in that: two handles are connected by a hinge, and the other end of the two handles are respectively provided with a first clamping part and a second clamping part; the end of the first clamping part and the second clamping part is provided with a clamping head, and the clamping head is used to clamp a target device; the target device is a thermocouple or a sensor on an aero-engine temperature and pressure measuring device.

2. The clamp according to claim 1, characterized in that: the two handles are connected by a bolt and a nut.

3. The clamp according to claim 1, characterized in that: the cross section of the clamping head after closing is a circular column structure.

4. The clamp according to any one of claims 1-3, characterized in that: the wall thickness of the thermocouple or sensor is 0.2-0.5mm.

5. The clamp according to claim 4, characterized in that: the clamping head includes three specifications of 2mm, 3mm or 4mm.

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