CN219749181U - Small-size dysmorphism composite sheet laminating tool - Google Patents

Abstract

The utility model discloses a small-size special-shaped composite board laminating jig, which comprises: the fixing base plate is provided with a placing platform in the top end, and clamping plates are arranged in the fixing base plate and positioned at two ends of the placing platform; the first cover plate clamping blocks are arranged at two ends of the top placement platform of the fixed bottom plate, and the cover plate platform is arranged at one adjacent end of each of the two first cover plate clamping blocks; the second cover plate clamping blocks are arranged on two sides of the first cover plate clamping block at the top of the fixed bottom plate. According to the small-size special-shaped composite board laminating jig, the first cover plate clamping blocks are fixed at the two ends of the top of the fixed bottom plate, the left groove and the right groove of the composite board are positioned, so that the laminating stress surface is enlarged, then the upper side and the lower side of the composite board are positioned through the four second cover plate clamping blocks, the two sides of the composite board are placed by the two cover plate platforms, and the left side and the right side of the glass SENSOR are positioned through the clamping plates, so that the laminating efficiency and the finished product yield of the composite board are improved.

Description

Small-size dysmorphism composite sheet laminating tool

Technical Field

The utility model relates to the technical field of composite boards, in particular to a small-size special-shaped composite board attaching jig.

Background

The automobile becomes a modern indispensable transportation tool, and has certain requirements on environmental protection and the like, the electric automobile is a priority choice, a vehicle factory requires a vehicle-mounted display screen to have higher-tech appearance, PMMA (polymethyl methacrylate) is used for making a display screen surface protection cover plate, the cost of the composite plate is reduced, the appearance can be more attractive than that of glass, the production period of the composite plate is shorter than that of the cover plate, the composite plate is not manufactured functionally, and the composite plate can be attached to SENSOR glass when TP is produced.

For example, chinese patent (CN 213280252U) discloses a fixture for attaching and aligning a soft and hard composite board, which comprises a carrier plate, a hard board positioning mechanism and a soft board guiding mechanism, wherein the upper surface of the carrier plate is provided with a positioning groove recessed downwards, the hard board is placed in the positioning groove, and the hard board positioning mechanism clamps the hard board to position the hard board; the upper surface of support plate is equipped with the soft board guiding mechanism that leads to the soft board, and soft board guiding mechanism includes connecting rod, swivelling tube, telescopic link and PIN needle, and the hard board is equipped with the PIN hole corresponding with the PIN needle, and the PIN needle is connected with the telescopic tube, and the telescopic tube is connected with the swivelling tube, and swivel tube is in the connecting rod, and the lower extreme of connecting rod is installed in the support plate, and the upper end of connecting rod is equipped with the bulge, is equipped with the spring between bulge and the swivelling tube, and the spring housing is in the connecting rod. The technical problems that when the soft board and the hard board are attached through manual alignment, the operation is very complicated, the deviation is easy, and a large amount of manpower is wasted when the product is bad are solved.

However, when the present inventors embodied this device, the following drawbacks were found to exist: at present, the cover plate of the composite plate is special-shaped and softer, the requirement on the precision of manual lamination is very high, the traditional lamination jig is used for production from left to right, and the composite plate is deformed due to uneven left and right stress of the composite plate, so that lamination is easy to deviate.

Disclosure of Invention

Based on the above, it is necessary to provide a small-sized special-shaped composite board attaching jig, wherein first cover board clamping blocks are fixed at two ends of the top of a fixed bottom board, and the two first cover board clamping blocks are made into a semicircle by the inner diameter, and mainly position left and right grooves of the composite board, so that attaching stress surface is enlarged, and attaching precision is not affected by softness of the composite board during attaching; then fix a position the upper and lower both sides of composite sheet through four second apron fixture blocks, face when putting the laminating on composite sheet both sides through two apron platforms, do not warp because of the composite sheet atress, deposit glass SENSOR through the place platform to fix a position glass SENSOR left and right both sides through the screens board, fix a position glass SENSOR upper and lower both sides through four third apron fixture blocks, thereby improve the laminating of composite sheet and make efficiency and yield.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a small-size special-shaped composite board laminating jig is applied to composite boards.

Including PMKD, the place platform has been seted up to the inside on PMKD top, PMKD's top just is located place platform's both ends all are fixed with first apron fixture block, two the apron platform has been seted up to the bottom of the adjacent one end of first apron fixture block, two the screens board has been seted up at the adjacent one end of apron platform and the top that is located place platform, PMKD's top just is located the both sides of first apron fixture block all are fixed with the second apron fixture block, PMKD's top just is located the both sides at place platform both ends all are fixed with the third apron fixture block.

As a preferred embodiment of the small-size special-shaped composite board attaching jig provided by the utility model, the fixed bottom board is a red skid.

As a preferred implementation mode of the small-size special-shaped composite board attaching jig provided by the utility model, two adjacent ends of the first cover plate clamping blocks are semicircular.

As a preferred embodiment of the small-size special-shaped composite board attaching jig provided by the utility model, a first placing groove is formed in the fixing bottom plate and located on one side of the placing platform.

As a preferred embodiment of the small-size special-shaped composite board attaching jig provided by the utility model, a second placing groove is formed in the fixing bottom plate and located on the other side of the placing platform.

As a preferred implementation mode of the small-size special-shaped composite board laminating jig provided by the utility model, a first positioning groove and a second positioning groove are formed in the fixing bottom plate and located at one end of the first positioning groove, and the first positioning groove is located at one side of the second positioning groove.

As a preferred embodiment of the small-size special-shaped composite board laminating jig provided by the utility model, the depth dimension of the second positioning groove is larger than that of the first positioning groove.

As a preferred implementation mode of the small-size special-shaped composite board laminating jig provided by the utility model, a connecting component for positioning is arranged on the outer side of the bottom end of the fixed bottom plate, the connecting component comprises a height positioning shell, a displacement clamping plate, a lifting slide plate and a positioning block, the two sides of the two ends of the height positioning shell are both in sliding connection with the displacement clamping plate, the top of one end of the displacement clamping plate is fixedly provided with the positioning block in the height positioning shell, the positioning block is in sliding connection with the height positioning shell, the lifting slide plate is in sliding connection with the inside of the height positioning shell, and an elastic piece is fixed at the bottom of the lifting slide plate.

As a preferred implementation mode of the small-size special-shaped composite board attaching jig provided by the utility model, inclined surfaces are formed at two ends of the top of the positioning block.

As a preferred embodiment of the small-size special-shaped composite board attaching jig provided by the utility model, the elastic piece is a return spring

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

according to the small-size special-shaped composite board laminating jig, the first cover plate clamping blocks are fixed at the two ends of the top of the fixed bottom plate, the two first cover plate clamping blocks are semicircular by the inner diameter, and the left groove and the right groove of the composite board are mainly positioned, so that the laminating stress surface is enlarged, and the laminating precision is not affected by the softness of the composite board during lamination; then fix a position the upper and lower both sides of composite sheet through four second apron fixture blocks, face when putting the laminating on composite sheet both sides through two apron platforms, do not warp because of the composite sheet atress, deposit glass SENSOR through the place platform to fix a position glass SENSOR left and right both sides through the screens board, fix a position glass SENSOR upper and lower both sides through four third apron fixture blocks, thereby improve the laminating of composite sheet and make efficiency and yield.

Through the cooperation of high positioning shell, displacement cardboard, lift slide, reset spring and locating piece, can be when using through the regulation to displacement cardboard position with fixed bottom plate fix the top at high positioning shell to the rebound through reset spring and the sliding connection of locating piece and high positioning shell carry out spacingly to the removal of displacement cardboard.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a fixture according to the present utility model;

FIG. 2 is a side view of the fixture provided by the present utility model;

FIG. 3 is a top view of the fixture provided by the present utility model;

FIG. 4 is a schematic view of the structure of the height positioning shell according to the present utility model;

FIG. 5 is a schematic view of the internal structure of the height positioning shell according to the present utility model;

fig. 6 is a schematic structural diagram of the displacement clamping plate provided by the utility model.

The labels in the figures are illustrated below:

1. a fixed bottom plate; 2. the first cover plate clamping block; 3. the second cover plate clamping block; 4. a clamping plate; 5. a cover plate platform; 6. placing a platform; 7. a first positioning groove; 8. a second positioning groove; 9. a first placement groove; 10. a second placement groove; 11. a third cover plate clamping block; 12. a height positioning shell; 13. a displacement clamping plate; 14. a lifting slide plate; 15. a return spring; 16. and (5) positioning blocks.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As described in the background art, the existing composite board cover board is shaped and softer, the requirement on the precision of manual lamination is very high, the traditional lamination jig is used for left and right production, and the lamination is easy to deviate due to uneven left and right stress of the composite board and deformation of the composite board.

In order to solve the technical problem, the utility model provides a small-size special-shaped composite board attaching jig which is applied to a composite board.

Specifically, referring to fig. 1 to 3, the jig specifically includes:

the device comprises a fixed bottom plate 1, wherein a placement platform 6 is arranged in the top end of the fixed bottom plate 1, and clamping plates 4 are arranged in the fixed bottom plate 1 and positioned at two ends of the placement platform 6;

the first cover plate clamping blocks 2 are arranged at two ends of the placement platform 6 at the top of the fixed bottom plate 1, and the cover plate platform 5 is arranged at one end of each first cover plate clamping block 2 adjacent to the other end;

the second cover plate clamping blocks 3 are arranged on two sides of the first cover plate clamping block 2 at the top of the fixed bottom plate 1;

the third cover plate clamping blocks 11 are arranged on two sides of the top placement platform 6 of the fixed bottom plate 1.

According to the small-size special-shaped composite board laminating jig, the first cover plate clamping blocks 2 are fixed at two ends of the top of the fixed bottom plate 1, the two first cover plate clamping blocks 2 are semicircular by the inner diameter, and the left groove and the right groove of the composite board are mainly positioned, so that the laminating stress surface is enlarged, and the laminating precision is not affected by the softness of the composite board during laminating; then fix a position the upper and lower both sides of composite sheet through four second apron fixture blocks 3, face when putting the composite sheet both sides through two apron platforms 5, do not warp because of the composite sheet atress, deposit glass SENSOR through placing platform 6 to fix a position glass SENSOR left and right both sides through screens board 4, fix a position glass SENSOR upper and lower both sides through four third apron fixture blocks 11, thereby improve composite sheet laminating and make efficiency and yield.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

Referring to fig. 1-3, a small-sized special-shaped composite board attaching jig comprises a fixed bottom board 1, wherein the fixed bottom board 1 is a red skid, a placing platform 6 is arranged in the top end of the fixed bottom board 1, the placing platform 6 is used for placing glass SENSOR, the glass SENSOR is stored through the placing platform 6, the top of the fixed bottom board 1 and two ends of the placing platform 6 are respectively fixed with a first cover board clamping block 2, two adjacent ends of the two first cover board clamping blocks 2 are semicircular, so that the left groove and the right groove of the composite board can be positioned through the two semicircular first cover board clamping blocks 2, the attaching stress surface is enlarged, the attaching precision is not affected by the softness of the composite board during attaching, the cover board platform 5 is arranged at the bottom of the adjacent ends of the two first cover board clamping blocks 2, two sides of the composite board can be temporarily placed through the two cover board platforms 5, when the glass SENSOR is bonded, deformation caused by stress of the composite board is avoided, the clamping plates 4 are arranged at the adjacent ends of the two cover plate platforms 5 and positioned at the tops of the placing platforms 6, the clamping plates 4 are used for positioning the glass SENSOR, the left side and the right side of the glass SENSOR are positioned through the clamping plates 4, the second cover plate clamping blocks 3 are fixed at the top of the fixed bottom plate 1 and positioned at the two sides of the first cover plate clamping block 2, so that the upper side and the lower side of the composite board can be positioned through the four second cover plate clamping blocks 3, the third cover plate clamping blocks 11 are fixed at the top of the fixed bottom plate 1 and positioned at the two sides of the two ends of the placing platforms 6, and the upper side and the lower side of the glass SENSOR can be positioned through the four third cover plate clamping blocks 11, so that the bonding of the composite board is improved, and the efficiency and the yield are improved;

the fixture provided by the embodiment is made into a semicircle by the inner diameters of the two first cover plate clamping blocks 2, and mainly positions the left and right grooves of the composite plate, so that the bonding stress surface is enlarged, and the bonding precision is not affected by the softness of the composite plate during bonding; then fix a position the upper and lower both sides of composite sheet through four second apron fixture blocks 3, face when putting the composite sheet both sides through two apron platforms 5, do not warp because of the composite sheet atress, deposit glass SENSOR through placing platform 6 to fix a position glass SENSOR left and right both sides through screens board 4, fix a position glass SENSOR upper and lower both sides through four third apron fixture blocks 11, thereby improve composite sheet laminating and make efficiency and yield.

Example two

The jig provided in the first embodiment is further optimized, the first placing groove 9 is formed in the fixing bottom plate 1 and is located at one side of the placing platform 6, so that TP materials can be manually taken and placed in the fixing bottom plate 1 through the first placing groove 9 when the materials are conveniently attached, the first placing groove 9 is a through groove in the fixing bottom plate 1, the second placing groove 10 is formed in the fixing bottom plate 1 and is located at the other side of the placing platform 6, the positions of the first placing groove 9 and the second placing groove 10 are symmetrical through the placing platform 6, the shape of the second placing groove 10 is C-shaped, TP materials can be manually taken and placed in the attaching process through the second placing groove 10, the second placing groove 10 is a through groove in the fixing bottom plate 1, the first positioning groove 7 and the second positioning groove 8 are formed in one end of the first placing groove 9, the first positioning groove 7 is specifically an FPC groove, the second positioning groove 8 is an FPC-IC groove, the first positioning groove 7 is located at one side of the second positioning groove 8, meanwhile the depth of the second positioning groove 8 is larger than the first positioning groove 7, the depth of the first positioning groove 7 is larger than the second positioning groove 7, and the second positioning groove 7 is bound by the second positioning groove and the second positioning groove is free of the second positioning groove 8;

the jig provided by the embodiment is convenient for manually taking and placing TP materials when the glass SENSOR placed at the top of the placement platform 6 is convenient to attach through the first placement groove 9 and the second placement groove 10, and is used for avoiding materials such as FPC and IC after the bonding of the SENSOR through the first positioning groove 7 and the second positioning groove 8.

Example III

Referring to fig. 4-6, unlike the first embodiment, a connecting assembly for positioning is installed on the outer side of the bottom end of the fixed bottom plate 1, the connecting assembly includes a height positioning shell 12, a displacement clamping plate 13, a lifting slide plate 14 and a positioning block 16, the height positioning shell 12 is installed at the bottom of the fixed bottom plate 1, the two sides of two ends of the height positioning shell 12 are slidably connected with the displacement clamping plate 13, so that the length of extension of the displacement clamping plate 13 can be adjusted inside the height positioning shell 12, the shape of the displacement clamping plate 13 is U-shaped, the top of one end of the displacement clamping plate 13 is fixed with the positioning block 16 inside the height positioning shell 12, two ends of the top of the positioning block 16 are provided with inclined surfaces, and the positioning block 16 is slidably connected with the height positioning shell 12, so that the position of the displacement clamping plate 13 can be positioned through the assembly of the sliding connection of the positioning block 16 and the height positioning shell 12, and the position translation of the positioning block 16 is facilitated through the inclined surfaces;

the inside of the height positioning shell 12 is slidably connected with a lifting slide plate 14, so that the height position of the displacement clamping plate 13 is positioned by the rising of the lifting slide plate 14, an elastic piece is fixed in the inside of the height positioning shell 12 and positioned at the bottom of the lifting slide plate 14, and the elastic piece is a return spring 15, so that the lifting slide plate 14 can position the height of the displacement clamping plate 13 through the rebound after the compression of the return spring 15;

in other embodiments, the elastic member is made of elastic material such as sponge.

According to the connecting assembly provided by the embodiment, the fixed bottom plate 1 is placed at the top of the height positioning shell 12, then the displacement clamping plate 13 is pressed according to the length of the fixed bottom plate 1, so that the displacement clamping plate 13 drives the positioning block 16 to be separated from the height positioning shell 12 in sliding connection, meanwhile, the lifting sliding plate 14 is driven to descend by the descending of the displacement clamping plate 13, the reset spring 15 is compressed by the descending of the lifting sliding plate 14, then the displacement clamping plate 13 is moved to a proper position and then positions the fixed bottom plate 1 through the position of the displacement clamping plate 13, the force applied to the displacement clamping plate 13 is released, the lifting sliding plate 14 is driven to ascend and reset through the rebound of the reset spring 15, the lifting sliding plate 14 is driven to ascend, the positioning block 16 on the displacement clamping plate 13 enters the inside of the height positioning shell 12 in sliding connection, and then the translation position of the displacement clamping plate 13 is positioned, and then the position of the fixed bottom plate 1 is fixed.

The use process of the jig provided by the utility model is as follows: in the TP laminating process, firstly, glass SENSOR is placed on the top of a placing platform 6 of a jig, after a release film on the back surface of a composite plate is torn off and cleaned, OCA release films on the glass SENSOR are torn off simultaneously, the left and right grooves on the two sides of the composite plate are aligned with the positions of two first cover plate clamping blocks 2, then the two first cover plate clamping blocks 2 are made into a semicircle by the inner diameters, and the left and right grooves of the composite plate are mainly positioned, so that the laminating stress surface is enlarged, and the laminating precision is not affected by the softness of the composite plate during laminating; then, the upper side and the lower side of the composite board are positioned through four second cover board clamping blocks 3, when the two sides of the composite board are closely placed through two cover board platforms 5, the composite board is not deformed due to stress, the glass SENSOR is stored through the placing platform 6, the left side and the right side of the glass SENSOR are positioned through the clamping plates 4, the upper side and the lower side of the glass SENSOR are positioned through four third cover board clamping blocks 11, so that the efficiency and the yield of the finished product are improved, when the glass SENSOR placed on the top of the placing platform 6 is convenient to be attached through the first placing groove 9 and the second placing groove 10, TP materials are manually taken and placed, and materials such as FPC and IC after the bonding of the glass SENSOR are used for avoiding the air through the first positioning groove 7 and the second positioning groove 8;

the fixed bottom plate 1 is placed on the top of the height positioning shell 12, then the displacement clamping plate 13 is pressed according to the length of the fixed bottom plate 1, the displacement clamping plate 13 drives the positioning block 16 to be separated from the height positioning shell 12 in sliding connection, meanwhile, the lifting sliding plate 14 is driven to descend by the descending of the displacement clamping plate 13, the reset spring 15 is compressed by the descending of the lifting sliding plate 14, then the displacement clamping plate 13 is moved to a proper position and then positions the fixed bottom plate 1 through the position of the displacement clamping plate 13, the force applied to the displacement clamping plate 13 is released, the lifting sliding plate 14 is driven to ascend and reset through the rebound of the reset spring 15, the lifting sliding plate 14 is driven to ascend, the positioning block 16 on the displacement clamping plate 13 is driven to ascend through the lifting sliding plate 14, and then the position of the displacement clamping plate 13 is positioned, and then the position of the fixed bottom plate 1 is fixed.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims (10)

1. The utility model provides a small-size dysmorphism composite sheet laminating tool, its is applied to the composite sheet, its characterized in that, it includes PMKD (1), place platform (6) have been seted up to the inside on PMKD (1) top, the top of PMKD (1) just is located the both ends of place platform (6) all are fixed with first apron fixture block (2), two apron platform (5) have been seted up to the bottom of the adjacent one end of first apron fixture block (2), two apron platform (5) adjacent one end just is located the top of place platform (6) and has been seted up screens board (4), the top of PMKD (1) just is located the both sides of first apron fixture block (2) all are fixed with second apron fixture block (3), the top of PMKD (1) just is located the both sides at place platform (6) both ends all are fixed with third apron fixture block (11).

2. The small-size special-shaped composite board attaching jig according to claim 1, wherein the fixed bottom board (1) is a red skid.

3. The fitting jig for small-size special-shaped composite boards according to claim 1, wherein two adjacent ends of the first cover plate clamping blocks (2) are semicircular.

4. The small-size special-shaped composite board laminating jig according to claim 1, wherein a first placing groove (9) is formed in the fixing bottom board (1) and located on one side of the placing platform (6).

5. The fitting jig for small-size special-shaped composite boards according to claim 4, wherein a second placing groove (10) is formed in the fixing bottom plate (1) and located on the other side of the placing platform (6).

6. The fitting jig for small-size special-shaped composite boards according to claim 4, wherein a first positioning groove (7) and a second positioning groove (8) are formed in the fixing bottom plate (1) and located at one end of the first positioning groove (9), and the first positioning groove (7) is located at one side of the second positioning groove (8).

7. The fitting jig for small-size special-shaped composite boards according to claim 6, wherein the depth dimension of the second positioning groove (8) is larger than that of the first positioning groove (7).

8. The small-size special-shaped composite board laminating jig according to claim 1, wherein a connecting component for positioning is installed on the outer side of the bottom end of the fixing base plate (1), the connecting component comprises a height positioning shell (12), a displacement clamping plate (13), a lifting sliding plate (14) and a positioning block (16), the two sides of the two ends of the height positioning shell (12) are both slidably connected with the displacement clamping plate (13), the top of one end of the displacement clamping plate (13) is fixedly provided with the positioning block (16) inside the height positioning shell (12), the positioning block (16) is slidably connected with the height positioning shell (12), the lifting sliding plate (14) is slidably connected inside the height positioning shell (12), and an elastic piece is fixedly arranged at the bottom of the lifting sliding plate (14).

9. The fitting jig for small-size special-shaped composite boards according to claim 8, wherein inclined surfaces are formed at two ends of the top of the positioning block (16).

10. The fitting jig for small-size special-shaped composite boards according to claim 8, wherein the elastic piece is a return spring (15).