Memory metal separation nut locking rod locking tool

Abstract

The memory metal separation nut locking rod locking tool comprises a positioning block, a positioning rod and a torque wrench, the upper end of the positioning block is provided with a locking head, the lower end face of the positioning block is provided with a first positioning hole, the middle of the positioning block is provided with a cavity with an opening in one side, and the first positioning hole is communicated with the cavity; the positioning block is arranged above the memory metal separation nut, the locking nut is clamped in the first positioning hole, and the upper end of the locking rod matched with the locking nut is located in the cavity; a second positioning hole is formed in the end part of the positioning rod, the positioning rod extends into the cavity from the opening, the upper end of the locking rod is clamped in the second positioning hole, and the position of the locking rod is locked through the positioning rod; and the torque wrench is clamped on the locking head to apply torque to the locking head so as to lock the locking rod. By means of the mode that the positioning block, the positioning rod and the torque spanner are combined, positioning of the locking rod is guaranteed, meanwhile, accuracy of applied torque is guaranteed, and the problem that the two-dimensional pointing mechanism locking device is difficult to apply torque in a limited installation environment is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly tooling, in particular to a memory metal separation nut locking rod locking tooling with a memory separation nut locking rod having a position requirement. Background Art

[0002] With the vigorous development of my country's satellite industry, the application of two-dimensional pointing mechanisms has gradually increased. The two-dimensional pointing mechanism needs a locking device to fix its state during transportation and launch to prevent it from being affected by external forces when it is not powered on, which may limit the function of the mechanism or even cause it to fail. It can be unlocked after reaching the corresponding orbit. This method puts high demands on the locking device, which needs to be able to achieve large-load locking, high reliability, low impact and no pollution.

[0003] Among them, the memory metal separation nut can achieve large load locking due to its split-petal principle, and the memory metal wire driver triggers the energy storage spring to complete the unlocking, that is, the locking nut drives the locking rod to separate from the separation nut to achieve unlocking. The separation nut has technical advantages such as small size, low impact, pollution-free, and reusable. However, the locking rod in the memory metal separation nut needs to be retracted half a circle after being screwed to the bottom to leave an unlocking gap, which makes it impossible to position the locking rod in the split-petal structure of the memory metal separation nut. At present, there are two methods in the industry to apply locking torque. The first is to use an open-end torque wrench with a locking rod locking tool to apply locking torque to the locking nut, and the second is to use a torque wrench with a sleeve to apply locking torque to the locking nut; however, when the memory metal separation nut is used in a two-dimensional pointing mechanism, due to the limited installation environment, it is difficult for the open-end torque wrench to apply torque, and when the torque wrench is combined with the sleeve to apply locking torque to the locking nut, the locking rod cannot be locked, and the locking rod will rotate with the sleeve, resulting in the memory metal separation nut being unable to achieve normal unlocking. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a memory metal separation nut locking rod locking tool.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] A locking tool for a locking rod of a memory metal separation nut, comprising a positioning block, a positioning rod and a torque wrench, wherein the upper end of the positioning block has a locking head, the lower end surface has a first positioning hole, and the middle part has a cavity with an opening on one side, and the first positioning hole is connected to the cavity; the positioning block is arranged above the memory metal separation nut, and the locking nut on the memory metal separation nut is clamped in the first positioning hole, and the upper end of the locking rod matched with the locking nut is located in the cavity; a second positioning hole is arranged at the end of the positioning rod, and the positioning rod extends into the cavity from the opening and makes the upper end of the locking rod clamped in the second positioning hole, and the locking rod is locked in position by the positioning rod; the torque wrench is clamped on the locking head to apply torque to the locking head, thereby applying a locking torque to the locking nut to lock the locking rod.

[0007] Preferably, the opening angle is 180° to 200°.

[0008] Furthermore, two second positioning holes are respectively provided at both ends of the positioning rod, the shape of the second positioning holes is adapted to the shape of the upper end of the locking rod, and the angle of each second positioning hole in a use state is different.

[0009] Furthermore, the positioning block is cylindrical, the locking head is a hexagonal head, the first positioning hole is a hexagonal hole, and the second positioning hole is a strip-shaped hole.

[0010] Beneficial effects of the utility model:

[0011] 1. The utility model not only ensures the positioning of the locking rod, but also ensures the accuracy of applying torque by combining the open positioning block, positioning rod and torque wrench, reduces the difficulty of operation, improves the locking efficiency, and solves the problem of difficulty in applying torque to the two-dimensional pointing mechanism locking device in a limited installation environment;

[0012] 2. Positioning holes with different angles when in use are arranged on the positioning rod, thereby satisfying the positioning of the locking rod in different directions.

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the setting state of the positioning block of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the positioning rod of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the memory metal separation nut.

[0018] Description of reference numerals:

[0019] 1-positioning block; 2-positioning rod; 3-torque wrench; 4-locking nut; 5-locking rod; 6-memory metal separation nut; 1-1-cavity; 1-2-hexagonal locking head; 1-3-first positioning hole; 2-1-second positioning hole. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with specific embodiments, but the implementation methods of the present invention are not limited thereto.

[0021] See also Figures 1 to 4 The embodiment of the utility model provides a memory metal separation nut locking rod locking tool, which specifically includes a positioning block 1, a positioning rod 2 and a torque wrench 3. The positioning block 1 has a cavity 1-1 with an opening on one side in the middle, a hexagonal locking head 1-2 at the upper end, and a first positioning hole 1-3 at the lower end surface. The first positioning hole 1-3 is a hexagonal hole, and the hexagonal hole is connected to the cavity 1-1. The positioning block 2 is arranged above the memory metal separation nut, and the locking nut 4 on the memory metal separation nut is clamped on the hexagonal hole. The upper end of the locking rod 5 cooperating with the locking nut 4 is located in the cavity; a second positioning hole 2-1 is provided at the end of the positioning rod 2, and the positioning rod 2 extends into the cavity from the opening and makes the upper end of the locking rod 5 clamped in the second positioning hole 2-1, and the locking rod 5 is locked in position by the positioning rod 2, and the torque wrench 3 is clamped on the hexagonal locking head 1-2 and applies torque to the hexagonal locking head 1-2, thereby applying a locking torque to the locking nut to lock the locking rod 5.

[0022] Specifically, two second positioning holes 2-1 are respectively provided at both ends of the positioning rod 2, and the angles of each second positioning hole 2-1 in the use state are different. It should be noted that: Figure 3 The two second positioning holes with the same inclination angle have different angles when used for positioning; the upper end of the locking rod 5 is designed to be flat, and the shape of the second positioning hole 2-1 is adapted to the shape of the upper end of the locking rod 5, specifically a strip hole, and can meet the positioning requirements of the locking rod 5 in different directions, thereby realizing the positioning of the locking rod 5.

[0023] Preferably, the positioning block 1 is cylindrical, so as to be easily rotated in a limited space to apply torque to the locking nut 4 .

[0024] Furthermore, in order to ensure that the torque wrench 3 can apply torque without hindrance, the opening angle of one side of the cavity 1 - 1 is set to 180-200°, which not only ensures the smoothness of the torque application process, but also ensures the strength of the positioning block 1 .

[0025] The specific use process of this tooling is as follows:

[0026] Clean the locking rod 5 and the locking nut 4, first check the resetting of the memory metal separation nut 6, after confirming the resetting, install the locking rod 5 on the memory metal separation nut 6 and screw it to the bottom, then back off half a turn to leave enough unlocking clearance, and then install the locking nut 4 on the locking rod 5, and then clamp the locking nut 4 through the hexagonal hole on the lower end face of the positioning block 1, and clamp the torque wrench 3 on the hexagonal locking head 1-2 at the upper end of the positioning block 1, and then extend the positioning rod 2 into the cavity through the opening on one side of the positioning block 1 to lock the locking rod 5, and then gradually apply torque with the torque wrench 3 until the calibrated torque requirement is reached.

[0027] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A memory metal separation nut locking rod locking tool, characterized in that: It includes a positioning block, a positioning rod and a torque wrench, the upper end of the positioning block has a locking head, the lower end face has a first positioning hole, the middle part has a cavity with an opening on one side, and the first positioning hole is connected to the cavity; the positioning block is arranged above the memory metal separation nut, and the locking nut on the memory metal separation nut is clamped in the first positioning hole, and the upper end of the locking rod matched with the locking nut is located in the cavity; the end of the positioning rod is provided with a second positioning hole, and the positioning rod extends into the cavity from the opening and makes the upper end of the locking rod clamped in the second positioning hole, and the locking rod is locked in position by the positioning rod; the torque wrench is clamped on the locking head to apply torque to the locking head, thereby applying locking torque to the locking nut to lock the locking rod.

2. The memory metal separation nut locking rod locking tool according to claim 1, characterized in that: The opening angle is 180° to 200°.

3. The memory metal separation nut locking rod locking tool according to claim 2, characterized in that: Two second positioning holes are respectively arranged at both ends of the positioning rod, the shape of the second positioning holes matches the shape of the upper end of the locking rod, and the angle of each second positioning hole in a use state is different.

4. The memory metal separation nut locking rod locking tool according to claim 3, characterized in that: The positioning block is cylindrical, the locking head is a hexagonal head, the first positioning hole is a hexagonal hole, and the second positioning hole is a strip-shaped hole.

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