CN111730542A

CN111730542A - A press and pull out ware frock for satellite-borne VPX integrated circuit board

Info

Publication number: CN111730542A
Application number: CN202010692690.7A
Authority: CN
Inventors: 常敬忠; 刘树斌; 杨春雨; 马开开
Original assignee: CETC 54 Research Institute
Current assignee: CETC 54 Research Institute
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-10-02

Abstract

The invention discloses a press-pull tool for a satellite-borne VPX board card, and belongs to the technical field of cabinets. The tool comprises a rack and a rack positioned in the rack, wherein one end part of the rack is fixedly connected with a connecting block for pushing and pulling the board card, and a tooth part at the other end of the rack is meshed with a gear; the outer side of the gear is connected with a hand wheel. The invention reduces the weight of the board card, avoids the abrasion of the clamping groove, has reliable structure transmission, simple and convenient operation and good universality and has the advantage of reutilization.

Description

A press and pull out ware frock for satellite-borne VPX integrated circuit board

Technical Field

The invention relates to the technical field of chassis, in particular to a drawer tool for a satellite-borne VPX board card.

Background

Due to the increase of the integration level of satellite-borne electronic products and the increase of the requirements of universality and interchangeability of electronic modules, the application of the VPX card-type module starts to become more and more extensive. The general plugging and unplugging of the VPX module are mainly as follows: two press-pulling pins arranged on the board card use the machine case clamping groove as a fulcrum, and press-pull is carried out through the lever action.

Although the mode does not need special tools, the number of parts is increased by using the press-pull pin, and meanwhile, the weight and the processing difficulty of the board card are increased. Meanwhile, the board card needs to be repeatedly pressed and pulled out and disassembled in the debugging process, and the case clamping groove and the pressing and pulling pin are mutually abraded due to the lever action of line contact, so that redundant materials such as metal fragments and the like are generated in the case, and the product zeroing risk is increased; make the draw-in groove grow after quick-witted case draw-in groove and the pressure are pulled out the round pin wearing and tearing, the pressure is pulled out the round pin and is become littleer, leads to the integrated circuit board to press and pulls out not in place, and then influences its performance, burns out the integrated circuit board even when serious.

Disclosure of Invention

In view of this, the invention provides a drawer tool for a satellite-borne VPX board card. The application of this frock has alleviateed integrated circuit board weight, has avoided the wearing and tearing of draw-in groove to its structure transmission is reliable, and is easy and simple to handle, and the commonality is good, has reuse's advantage.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a pressing and pulling device tool for a satellite-borne VPX board comprises a rack, a rack and a gear, wherein the rack and the gear are positioned on the rack; the rack comprises two limiting plates which are arranged on the bottom plate in parallel, and a hand wheel is arranged on the outer side of each limiting plate; the hand wheel is fixedly connected with the gear through a shaft, and the shaft is fixedly connected with the limiting plate through a bearing; the toothless top surface of the rack is also provided with a guide groove; bearing rods for mounting bearings are erected at the upper parts of the two limiting plates; and the outer ring of the bearing rod is matched with the guide groove.

Further, the top of limiting plate sets firmly the handle board that prevents the bearing rod and deviate from, is equipped with the handle on the handle board.

Furthermore, the rack also comprises two constraint plates which are arranged on the bottom plate in parallel, the inner sides of the upper end parts of the constraint plates are both provided with horizontal sliding grooves, and a sliding rod is arranged between the two opposite horizontal sliding grooves; the middle position of the slide bar is also sleeved with a support bearing and a bearing seat matched with the support bearing; the bearing seat is fixedly connected with the toothless top surface of the rack.

Further, the limiting plate and the restraining plate on the same side are located on the same vertical plane.

Furthermore, a cylindrical boss matched with the round hole in the side face of the board card is arranged on the connecting block.

Furthermore, the end part of the other end of the rack is also provided with a connecting position connected with the connecting block.

The invention adopts the technical scheme to produce the beneficial effects that:

1. the invention uses the meshing transmission of the rack and the gear, has more stable and reliable movement, saves labor by rotating the hand wheel, and has simple and convenient operation.

2. The invention can be used only by installing the connecting block matched with the board card according to the type of the board card, and has good universality and high reutilization.

3. The handle is moved by the handle or used as the handrail, so that the operation is simple and convenient, and the force is easy to apply; and the whole volume can be designed to be very small and exquisite, so that the portable electric water heater is convenient to carry.

4. The application of the invention reduces the use of the press-pull pin on the board card, reduces the weight of the board card, and simultaneously makes the overall weight of the VPX chassis lighter and more competitive.

5. The use of the invention reduces the metal redundancy caused by abrasion of the press-pull pin and the clamping groove, and reduces the risk of short circuit return to zero.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the connection block of FIG. 1;

FIG. 3 is a schematic view of the construction of the rack and its linkage of FIG. 1;

FIG. 4 is a schematic illustration of the torque transmitting structure of FIG. 1;

in the figure: 1. the device comprises a bottom plate, 2, a limiting plate, 3, a limiting plate, 4, a connecting block, 5, a bearing seat, 6, a sliding rod, 7, a handle, 8, a handle plate, 9, a bearing rod, 10, a bearing, 11, a hand wheel, 12, a shaft, 13, a rack, 14, a gear, 15, a cylindrical boss, 16, a guide groove, 17 and a horizontal sliding groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

A pressing and pulling device tool for a satellite-borne VPX board comprises a rack and a rack positioned on the rack, wherein one end of the rack is fixedly connected with a connecting block for pushing and pulling the board, and a tooth part at the other end of the rack is meshed with a gear; the rack comprises two limiting plates which are arranged on the bottom plate in parallel, and a hand wheel is arranged on the outer side of each limiting plate; the hand wheel is fixedly connected with the gear through a shaft, and the shaft is fixedly connected with the limiting plate through a bearing; the toothless top surface of the rack is also provided with a guide groove; bearing rods for mounting bearings are erected at the upper parts of the two limiting plates; and the outer ring of the bearing rod is matched with the guide groove.

The following is a more specific example:

referring to fig. 1 to 3, the present embodiment includes a bottom plate 1, a limit plate 2, a restriction plate 3, a connection block 4, a bearing seat 5, a bearing rod 9, a handle 7, a handle plate 8, a slide rod 6, a bearing 10, a hand wheel 11, a shaft 12, a rack 13, and a gear 14.

Wherein, the bottom plate is stainless steel spare, mainly plays the supporting role and stabilizes the focus effect. The limiting plate and the restraining plate enable the rack to keep stable in the vertical direction through the bearing rod and the sliding rod, and the rack can be enabled to move horizontally and linearly.

The gear and the rack are meshed, so that circular motion can be converted into front and back linear motion, and the transmission is stable and reliable.

The hand wheel is connected with the gear through the shaft, and the hand wheel is shaken to drive the shaft to rotate so as to realize the meshing rotation of the gear and the rack.

The sliding rod is matched with the horizontal sliding groove 17 on the restraint plate to limit the rack, so that the rack is guaranteed to keep horizontal linear motion, the push head is guaranteed to move back and forth stably, and the VPX board card is pressed and pulled.

As shown in fig. 1, the hand wheel is shaken, the gear 14 is in meshed transmission with the rack 13, and the rack 13 drives the connecting block 4 to realize linear movement.

As shown in fig. 2, the cylindrical boss 15 on the connecting block 4 is coaxially matched with the round hole on the side surface of the VPX card to serve as a pressure-pull stress point.

As shown in fig. 3, in order to ensure that the rack 13 can move horizontally and linearly, one position is fixed on the rack 13 by the slide rod 6 through the bearing seat 5 in a coaxial matching manner, and is limited by the constraint plates 3 on two sides; the other part is that after the bearing 10 and the bearing column 9 are coaxially assembled, the meshed end of the rack is limited through the guide groove 16 at the upper part of the rack, and the two limits simultaneously act to ensure and enhance the stable horizontal linear motion of the rack 13.

As shown in figure 4, the shaft 12 is assembled with the hand wheel 11 and the gear 14 through keys, smooth rotation is achieved at a supporting point through a bearing, the force applied to the tool in the operation process is smaller due to reasonable selection of the diameter of the hand wheel, the number of gear teeth and the modulus, and the tool is simpler and more convenient to operate.

Claims

1. The pressing and pulling device tool for the satellite-borne VPX board card is characterized by comprising a rack, a rack (13) and a gear (14), wherein the rack (13) and the gear (14) are positioned on the rack; the rack comprises two limiting plates (2) which are arranged on the bottom plate (1) in parallel, and hand wheels (11) are arranged on the outer sides of the limiting plates; the hand wheel is fixedly connected with the gear through a shaft (12), and the shaft is fixedly connected with the limiting plate through a bearing; a guide groove (16) is also arranged on the toothless top surface of the rack; the upper parts of the two limit plates are provided with bearing rods (9) for mounting bearings (10); and the outer ring of the bearing rod is matched with the guide groove.

2. The extractor tool for the satellite-borne VPX board card according to claim 1, wherein a handle plate (8) for preventing the bearing rod from coming off is fixedly arranged at the top of the limiting plate, and a handle (7) is arranged on the handle plate.

3. The tooling of claim 1, wherein the frame further comprises two restraining plates (3) arranged on the bottom plate in parallel, the inner sides of the upper end parts of the restraining plates are provided with horizontal sliding grooves (17), and a sliding rod (6) is arranged between the two opposite horizontal sliding grooves; the middle position of the slide bar is also sleeved with a support bearing and a bearing seat (5) matched with the support bearing; the bearing seat is fixedly connected with the toothless top surface of the rack.

4. The indenter tool of claim 3, wherein the limiting plate and the restraining plate on the same side are on the same vertical plane.

5. The tooling of claim 1, wherein the connecting block is provided with a cylindrical boss (15) which is matched with a round hole on the side surface of the card.

6. The tooling of claim 1, wherein a connecting position connected with the connecting block is further arranged at the end of the other end of the rack.