Pig cage frame for inserting printed circuit board

Abstract

A pig cage frame for inserting a printed circuit board comprises a left frame body and a right frame body, a plurality of vertical inserting grooves are oppositely formed in the inner side of the left frame body and the inner side of the right frame body, a plurality of clamping mechanisms are fixed to the positions, at the upper ends and the lower ends of the vertical inserting grooves, of the frame body respectively, and each clamping mechanism comprises a fixing base fixed to the position, at the upper ends and the lower ends of the vertical inserting grooves, of the frame body. A first rolling wheel and a second rolling wheel are arranged on the inner side of the fixing base side by side, and the first rolling wheel and the second rolling wheel directly face a notch of the vertical inserting groove. The first rolling wheel is installed on the inner side of the fixing base through a first horizontal shaft, the second rolling wheel is slidably installed on the inner side of the fixing base through a second horizontal shaft, an elastic piece is arranged on the outer side of the second horizontal shaft, and the second rolling wheel is forced to be tightly attached to the first rolling wheel through the elastic piece. The utility model aims to overcome the defects in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board pig cages, in particular to a pig cage for inserting printed circuit boards. Background Art

[0002] The multilayer printed circuit board is composed of multiple layers of thin plates with a thickness of 0.025-0.1mm. During the production process, each layer of the thin plate must be cured by ink, and the ink curing requires high-temperature baking. When the ink of the existing thin plate is cured, it is inserted into the slot of the pig cage frame and baked at high temperature for one hour together with the pig cage frame (the temperature is controlled at 150°C). Since the slot width of the slot is fixed, there is a certain gap after the thin plate is inserted into the slot, which makes the thin plate tilted in the slot. When the thin plate is baked at high temperature, the stress concentration of the thin plate is easy to cause warping, and the thin plate with severe warping will be scrapped. Utility Model Content

[0003] The utility model provides a pig cage frame for inserting a printed circuit board, so as to overcome the shortcomings of the prior art.

[0004] The technical scheme adopted by the utility model is: a pig cage frame for inserting printed circuit boards, comprising a left frame body and a right frame body, wherein a plurality of vertical slots are relatively arranged on the inner sides of the left frame body and the right frame body, and a plurality of clamping mechanisms are respectively fixed on the frames at the upper and lower ends of the vertical slots, and the clamping mechanism comprises a fixing seat fixed on the frames at the upper and lower ends of the vertical slots, and a first roller and a second roller are arranged side by side on the inner side of the fixing seat, and the first roller and the second roller are directly opposite to the notch of the vertical slot; the first roller is installed on the inner side of the fixing seat through a first horizontal axis, and the second roller is slidably installed on the inner side of the fixing seat through a second horizontal axis, and an elastic member is arranged on the outer side of the second horizontal axis, and the second roller is forced to be in close contact with the first roller through the elastic member.

[0005] A horizontal through hole and a horizontal strip hole are arranged side by side on the fixing seat, the first horizontal axis is installed in the horizontal through hole, the second horizontal axis is installed in the horizontal strip hole, and the second horizontal axis can slide along the horizontal strip hole; arc grooves are symmetrically arranged on the lower inner wall of the horizontal strip hole, the elastic member is arranged in the arc groove and the end of the elastic member is pressed by a plug installed on the fixing seat, so that the other end of the elastic member is tightly pressed against the second horizontal axis.

[0006] The first roller and the second roller are rolling bearings.

[0007] The elastic member is a compression spring.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. The utility model provides clamping mechanisms at the upper and lower ends of the vertical slot of the existing pig cage frame to clamp and fix the thin plate, so that the thin plate inserted in the vertical slot always remains in a vertical state, overcoming the warping caused by the thin plate tilting in the slot.

[0010] 2. The clamping mechanism of the utility model realizes automatic clamping by arranging elastic parts, and can also clamp thin plates of different thicknesses.

[0011] 3. The utility model has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0015] Figure 4 It is a schematic cross-sectional view of the clamping mechanism structure of the utility model. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-4 The utility model is described in detail with specific implementation modes.

[0017] A pig cage frame for inserting a printed circuit board comprises a left frame body 1 and a right frame body 2, wherein a plurality of vertical slots 3 are arranged opposite to each other on the inner sides of the left frame body 1 and the right frame body 2, a plurality of clamping mechanisms 4 are fixed to the frames at the upper and lower ends of the vertical slots 3, respectively, the clamping mechanisms 4 comprise a fixing seat 5 fixed to the frames at the upper and lower ends of the vertical slots 3, a first roller 6 and a second roller 7 are arranged side by side on the inner side of the fixing seat 5, and the first roller 6 and the second roller 7 are directly opposite to the notch of the vertical slots 3; the first roller 6 is installed on the inner side of the fixing seat 5 through a first horizontal axis 9, the second roller 7 is slidably installed on the inner side of the fixing seat 5 through a second horizontal axis 10, and an elastic member 8 is arranged on the outer side of the second horizontal axis 10, and the second roller 7 is forced to be in close contact with the first roller 6 through the elastic member 8.

[0018] In one embodiment, a horizontal through hole 5-1 and a horizontal strip hole 5-2 are arranged side by side on the fixing seat 5, the first horizontal axis 9 is installed in the horizontal through hole 5-1, the second horizontal axis 10 is installed in the horizontal strip hole 5-2, and the second horizontal axis 10 can slide along the horizontal strip hole 5-2; arc grooves 5-3 are symmetrically provided on the upper and lower inner walls of the horizontal strip hole 5-2, the elastic member 8 is arranged in the arc groove 5-3 and the end of the elastic member 8 is pressed by a plug 11 installed on the fixing seat 5, so that the other end of the elastic member 8 is tightly pressed against the second horizontal axis 10.

[0019] In one embodiment, the first roller 6 and the second roller 7 are preferably rolling bearings.

[0020] In one embodiment, the elastic member 8 is preferably a compression spring.

[0021] In one embodiment, the left frame 1 is fitted with the sleeve 13 on the inner side of the front and rear end frames of the right frame 2 through the connecting rod 12 on the inner side of the front and rear end frames, and the relative position adjustment between the connecting rod 12 and the sleeve 13 is completed through the adjustment handle 14 threadedly connected on the sleeve 13. It is convenient for inserting thin plates of different sizes; the bottom of the left frame 1 and the right frame 2 are both provided with horizontal slots 15 corresponding to the vertical slots 3.

[0022] When in use, the thin plate is inserted into the slot between the first roller 6 and the second roller 7 above the pig cage frame, and the lower end of the thin plate is embedded in the horizontal slot 15. The second roller 7 clamps the thin plate between the first roller 6 and the second roller 7 under the action of the compression spring. The thin plate is fixed by the first roller 6 and the second roller 7 at the upper and lower ends of the vertical slot 3, so that the thin plate always remains in a vertical state, effectively preventing the thin plate from tilting in the slot. Warping caused by.

[0023] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pig cage frame for inserting a printed circuit board, comprising a left frame (1) and a right frame (2), wherein a plurality of vertical slots (3) are arranged opposite to each other on the inner sides of the left frame (1) and the right frame (2), characterized in that: A plurality of clamping mechanisms (4) are fixed on the frames at the upper and lower ends of the vertical slot (3), respectively. The clamping mechanisms (4) include a fixing seat (5) fixed on the frames at the upper and lower ends of the vertical slot (3), a first roller (6) and a second roller (7) are arranged side by side on the inner side of the fixing seat (5), and the first roller (6) and the second roller (7) are directly opposite to the notch of the vertical slot (3); the first roller (6) is mounted on the inner side of the fixing seat (5) through a first horizontal axis (9), the second roller (7) is slidably mounted on the inner side of the fixing seat (5) through a second horizontal axis (10), and an elastic member (8) is arranged on the outer side of the second horizontal axis (10), and the second roller (7) is forced to be in close contact with the first roller (6) through the elastic member (8).

2. The pig cage for inserting a printed circuit board according to claim 1, characterized in that: The fixing seat (5) is provided with a horizontal through hole (5-1) and a horizontal strip hole (5-2) in parallel, the first horizontal shaft (9) is installed in the horizontal through hole (5-1), the second horizontal shaft (10) is installed in the horizontal strip hole (5-2), and the second horizontal shaft (10) can slide along the horizontal strip hole (5-2); arc grooves (5-3) are symmetrically provided on the upper and lower inner walls of the horizontal strip hole (5-2), the elastic member (8) is arranged in the arc groove (5-3), and the end of the elastic member (8) is pressed by a plug (11) installed on the fixing seat (5), so that the other end of the elastic member (8) is tightly pressed against the second horizontal shaft (10).

3. The pig cage for inserting a printed circuit board according to claim 1, characterized in that: The first roller (6) and the second roller (7) are rolling bearings.

4. The pig cage rack for inserting a printed circuit board according to claim 1, 2 or 3, characterized in that: The elastic member (8) is a compression spring.

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