CN218885232U

CN218885232U - Detect frock of satellite assembly fastener holding power

Info

Publication number: CN218885232U
Application number: CN202223500817.4U
Authority: CN
Inventors: 闫晓亮; 侯然然; 刘波
Original assignee: Galaxyspace Beijing Technology Co ltd
Current assignee: Galaxyspace Beijing Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-18
Anticipated expiration: 2032-12-27

Abstract

The application relates to a tool for detecting the holding force of a satellite assembly fastener, which comprises a mounting plate, a base plate and a thimble; the mounting plate is provided with a first mounting hole for a fastener to penetrate through, and the upper side of the mounting plate is provided with a containing groove for containing the base plate; the backing plate is provided with a second mounting hole for the fastener to penetrate through, and the axes of the first mounting hole and the second mounting hole are on the same straight line; the length of the side edge of the base plate, which is far away from the first mounting hole, is smaller than the length of the side edge, which is close to the first mounting hole, of the base plate, and the ejector pin abuts against the fastener and is used for detecting the holding force of the fastener. This application is through seting up the holding tank that holds the backing plate on the mounting panel for when detecting the fastener holding power, make fastener and backing plate extrude mutually, when the backing plate damage, need to change the backing plate can, need not to change the mounting panel, thereby reduce the cost of enterprise.

Description

Detect frock of satellite assembly fastener confining force

Technical Field

The application relates to the technical field of satellite assembly fastener detection tools, in particular to a tool for detecting the holding force of a satellite assembly fastener.

Background

The fastener is a generic term for a type of mechanical parts used when two or more parts (or members) are fastened and connected as a whole.

During the satellite assembly process, numerous fasteners are required to assemble the various components together. In the field of satellite assembly, the most widely used fasteners include screws, spring washers, flat washers, nuts, and the like. After the screw penetrates through the two components, the elastic pad, the flat pad and the nut which are matched with each other sequentially penetrate through the screw rod of the screw respectively, and the screw is used for installing and fixing various instruments and related devices.

The satellite fastener performance test comprises a retention force test, namely, the locking performance of the fastener for fastening different components is checked, and the retention force test is related to the use reliability of a product.

However, for the fastener for the satellite, because the strength is large, when the existing tool is used for detection, the problem of large damage to the tool exists, the condition of the detection tool needs to be frequently replaced, and the production cost of an enterprise is increased.

SUMMERY OF THE UTILITY MODEL

When detecting fastener holding power, in order to reduce the manufacturing cost of enterprise, this application provides a frock that detects satellite assembly fastener holding power.

The application provides a detect frock of satellite assembly fastener holding power adopts following technical scheme:

a tool for detecting the holding force of a satellite assembly fastener comprises a mounting plate, a base plate and a thimble; the mounting plate is provided with a first mounting hole for a fastener to penetrate through, and the upper side of the mounting plate is provided with a containing groove for containing the base plate; the backing plate is provided with a second mounting hole for the fastener to penetrate through, and the axes of the first mounting hole and the second mounting hole are on the same straight line; the length of the side edge of the base plate, which is far away from the first mounting hole, is smaller than the length of the side edge, which is close to the first mounting hole, of the base plate, and the ejector pin abuts against the fastener and is used for detecting the holding force of the fastener.

Through adopting above-mentioned technical scheme, when the thimble butt fastener applyed the load, the fastener extrudees with the backing plate mutually. When the backing plate is worn, the backing plate is only required to be replaced quickly, so that the problem that the whole mounting plate needs to be replaced in the detection tool is solved, and the replacement cost is reduced. Meanwhile, the side edges of the base plate are obliquely arranged, so that the base plate is more conductive to load, and the damage to the base plate is reduced. The tester is matched with the holding force tester for use, and can detect the holding force of the high-strength fastener for the satellite.

Optionally, a guide piece is arranged on the mounting plate, and a guide hole for the thimble to penetrate is vertically formed in the guide piece.

Through adopting above-mentioned technical scheme, through setting up the guiding hole, reduce the thimble and appear inclining in the test procedure to the reduction takes place to the condition that the fastener applyed eccentric load. When the eccentric loading appears, the backing plate and the mounting plate on one eccentric side are damaged easily due to larger acting force, namely, the condition of reducing the eccentric loading is reduced by arranging the guide piece, and the damage of the test tool is reduced.

Optionally, one side of the guide piece, which is close to the mounting plate, is provided with a convex block, and the mounting plate is provided with a groove matched with the convex block.

Through adopting above-mentioned technical scheme, the joint cooperation of lug and recess for the guide can lead to quick installation with the mounting panel, thereby the staff operation of being convenient for.

Optionally, chamfers are arranged at two ends of the side edge, away from the mounting plate, of the guide piece.

Through adopting above-mentioned technical scheme, reduce the sharp portion of guide, the condition that the reduction staff collided with takes place.

Optionally, the thimble includes a first thimble portion and a second thimble portion; the first thimble portion has a diameter greater than the second thimble portion; the first thimble part is abutted with the guide hole; the second thimble portion abuts against the fastener.

By adopting the technical scheme, the first ejector pin part with the larger diameter is used for being combined with the guide hole of the guide piece, and the ejector pin is ensured to be positioned at the central position. The second thimble portion with the smaller diameter is abutted to the fastener, so that accurate positioning of the second thimble portion and the fastener is ensured, and the occurrence of eccentric loading is reduced.

Optionally, a connecting piece is arranged between the first thimble portion and the second thimble portion.

Through adopting above-mentioned technical scheme, the connecting piece makes the effort more smooth from first thimble portion and the transmission of second thimble portion to the cracked condition of first thimble portion and second thimble portion because of the stress difference takes place for the minimize.

Optionally, the first thimble portion, the connecting piece, and the second thimble portion are integrally formed.

By adopting the technical scheme, the thimble is convenient to produce, meanwhile, the operation times of workers are reduced, and the production efficiency is improved.

Optionally, the backing plate is provided with a plurality of different second mounting holes for the fasteners to penetrate through.

By adopting the technical scheme, fasteners of different sizes can be continuously detected, and the detection efficiency is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the mounting plate is provided with the accommodating groove for accommodating the base plate, so that the fastener and the base plate are extruded when the retaining force of the fastener is detected, the base plate is required to be replaced when the base plate is damaged, the mounting plate is not required to be replaced, and the cost of an enterprise is reduced;

2. through setting up the guide, the eccentric loading condition that the slope leads to appears in the minimize thimble reduces because of the damage of eccentric loading to the backing plate.

Drawings

Fig. 1 is a schematic view showing a structure of a detection tool in embodiment 1.

Fig. 2 is an enlarged view showing a point a in fig. 1.

Fig. 3 is a schematic view showing a second mounting hole structure in embodiment 2.

Description of reference numerals: 1. a screw; 2. flattening the cushion; 3. a spring pad; 4. a nut; 5. a guide member; 51. chamfering; 52. a bump; 53. a guide hole; 6. a test board; 61. a groove; 62. accommodating grooves; 63. a first mounting hole; 7. a base plate; 71. a second mounting hole; 8. a thimble; 81. a first thimble portion; 82. a connecting member; 83. a second thimble portion.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses detect frock of satellite assembly fastener holding power. This detect frock cooperation holding power testing machine uses, can detect for the holding power to the high strength fastener that the satellite was used. Referring to fig. 1, the tool for detecting the holding force of the satellite assembly fastener comprises a mounting plate, a base plate 7 and a thimble 8.

The upper side of the mounting plate is provided with a receiving groove 62 for receiving the backing plate 7. The mounting plate is provided with a first mounting hole 63 for the fastener to penetrate, the backing plate 7 is provided with a second mounting hole 71 for the fastener to penetrate, and the first mounting hole 63 and the second mounting hole 71 are arranged on the same straight line along the axis so that the fastener penetrates through the first mounting hole 63 and the second mounting hole 71.

Referring to fig. 1 and 2, in the present embodiment, the fastener for satellite installation includes a screw 1, a flat pad 2 engaged with the screw, an elastic pad 3, and a nut 4. The screw rod penetrates through the first mounting hole 63 of the mounting plate and the second mounting hole 71 of the backing plate 7, and then the flat pad 2, the elastic pad 3 and the nut 4 are sequentially penetrated through and then screwed and fixed.

After the fastener is installed, the thimble 8 and the screw 1 are connected with each other in an abutting mode at one end far away from the nut, and the holding power testing machine applies load to the thimble 8, so that the load is transmitted to the screw for detecting the holding power of the fastener. When the firm piece loosens, the load that holding power testing machine exerted diminishes suddenly, and at this moment, holding power testing machine's numerical value is the holding power numerical value of fastener.

In this embodiment, the shim plate 7 is provided with a stepped interface to facilitate load transfer.

In addition, when the thimble 8 applies a load to the fastener, the thimble 8 may be inclined, which may cause an eccentric load to be applied to the fastener. Not only the detection result of the holding force is influenced, but also the eccentric load causes additional damage to the backing plate 7.

Therefore, the mounting plate is further provided with a guide piece 5, and the guide piece 5 is vertically provided with a guide hole 53 for the thimble 8 to penetrate through so as to reduce the inclination of the thimble 8 in the test process. Meanwhile, chamfers 51 are arranged at two ends of the side edge of the guide piece 5, which is far away from the mounting plate, so that the situation that workers collide is reduced.

Further, a projection 52 is arranged on one side of the guide 5 close to the mounting plate, and the mounting plate is provided with a groove 61 matched with the projection 52, so that the guide can be quickly mounted by workers.

The viewing angle is now turned to the thimble 8. The thimble 8 includes a first thimble portion 81, a connecting member 82, and a second thimble portion 83 which are integrally formed. The diameter of the first thimble portion 81 is greater than that of the second thimble portion 83, and the connecting member 82 is disposed between the first thimble portion 81 and the second thimble portion 83 to enable the load to be transferred more smoothly, so as to reduce the occurrence of the first thimble portion 81 and the second thimble portion 83 breaking due to different stresses. The first thimble portion 81 abuts against the guide hole 53 to ensure that the thimble 8 is located at the center; the second thimble portion 83 with the smaller diameter abuts against the fastener, so that the second thimble portion 83 and the fastener are accurately positioned, and the eccentric loading is reduced.

Example 2:

in this embodiment, the backing plate 7 is provided with a plurality of different second mounting holes 71 for fasteners to penetrate through, so that a plurality of fasteners of different sizes can be simultaneously mounted on the backing plate 7, the fasteners of different sizes can be continuously detected, and the detection efficiency is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a detect frock of satellite assembly fastener confining force which characterized in that: comprises a mounting plate, a base plate (7) and a thimble (8); the mounting plate is provided with a first mounting hole (63) for a fastener to penetrate through, and the upper side of the mounting plate is provided with a containing groove (62) for containing the base plate (7); the backing plate (7) is provided with a second mounting hole (71) for the fastener to penetrate through, and the axes of the first mounting hole (63) and the second mounting hole (71) are on the same straight line; the length of the side edge of the base plate (7) far away from the first mounting hole (63) is smaller than that of the side edge close to the first mounting hole (63), and the thimble (8) abuts against the fastener and is used for detecting the holding force of the fastener.

2. The tool for detecting the holding force of the satellite assembling fastener according to claim 1, is characterized in that: be equipped with guide (5) on the mounting panel, guide (5) are vertical to be seted up and are supplied guide hole (53) that thimble (8) wore to establish.

3. The tool for detecting the holding force of the satellite assembly fastener according to claim 2, characterized in that: one side that guide (5) are close to the mounting panel is equipped with lug (52), the mounting panel be equipped with lug (52) complex recess (61).

4. The tool for detecting the holding force of the satellite assembling fastener according to claim 2, is characterized in that: and chamfers (51) are arranged at two ends of the side edge of the guide piece (5) far away from the mounting plate.

5. The tool for detecting the holding force of the satellite assembly fastener according to claim 2, characterized in that: the thimble (8) comprises a first thimble part (81) and a second thimble part (83); the first thimble portion (81) has a larger diameter than the second thimble portion (83); the first thimble portion (81) abuts against the guide hole (53); the second thimble portion (83) abuts the fastener.

6. The tool for detecting the holding force of the satellite assembling fastener according to claim 5, characterized in that: a connecting piece (82) is arranged between the first thimble portion (81) and the second thimble portion (83).

7. The tool for detecting the holding force of the satellite assembling fastener according to claim 6, is characterized in that: the first thimble portion (81), the connecting piece (82) and the second thimble portion (83) are integrally formed.

8. The tool for detecting the holding force of the satellite assembling fastener according to claim 1, is characterized in that: the backing plate (7) is provided with a plurality of different second mounting holes (71) for the fasteners to penetrate through.