Auxiliary tool for preparing composite material laminated board compression performance test piece

Abstract

The utility model relates to the technical field of auxiliary devices, and discloses an auxiliary tool for preparing a composite laminated board compression performance test piece, which comprises a processing table, a bottom frame is fixedly connected to the top end of the processing table, a top frame is detachably connected to the top end of the bottom frame through bolts, and a laminated board is arranged between the bottom frame and the top frame; the auxiliary assembly comprises two auxiliary plates and two auxiliary parts, a vertical plate is fixedly connected to the top end of the machining table, two vertical sliding grooves are formed in the vertical plate, a lead screw is arranged in one vertical sliding groove, the two auxiliary plates are slidably connected with the two ends of the vertical sliding groove through the lead screw respectively, and the two auxiliary parts are arranged on the two auxiliary plates respectively and used for clamping a reinforcing piece. The laminated plate is positioned between the two reinforcing sheets; and the adjusting assembly comprises two adjusting pieces, the two adjusting pieces are arranged at the two ends in the other vertical sliding groove correspondingly and are in transmission connection through a connecting piece, and the two adjusting pieces are in transmission connection with the two auxiliary pieces correspondingly. According to the utility model, the two reinforcing sheets are uniformly mounted on the laminated board, so that the stress is uniform, and the stability of subsequent tests is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices, in particular to an auxiliary tooling for preparing a compression performance test piece of a composite material laminate. Background Art

[0002] The compression performance test specimen of composite laminates has strict requirements on the size of the test area. The flatness and parallelism of the test specimen directly affect the test results. Continuous fiber reinforced laminates require a large clamping force during the test. Excessive clamping force will cause local stress concentration or root crushing at the root of the working section, resulting in erroneous and low strength data results. In this case, a reinforcement sheet must be attached to the specimen.

[0003] In the prior art, when installing the reinforcement sheet, the clamping parts on both sides are usually set separately. There is a disadvantage that the clamping parts on both sides have a certain error when installing the reinforcement sheet, which leads to errors between the reinforcement sheets installed on both sides of the laminate subsequently, uneven force, and affects the subsequent test results.

[0004] Therefore, there is an urgent need for an auxiliary tooling for preparing compression performance test pieces of composite laminates to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an auxiliary tooling for preparing a composite material laminate compression performance test piece, so as to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides an auxiliary tooling for preparing a composite laminate compression performance test piece, comprising:

[0007] A processing table, wherein a bottom frame is fixedly connected to the top of the processing table, a top frame is detachably connected to the top of the bottom frame by bolts, and a laminate is arranged between the bottom frame and the top frame;

[0008] The auxiliary assembly includes two auxiliary plates and two auxiliary parts. The top of the processing table is fixedly connected with a vertical plate. Two vertical slide grooves are provided on the vertical plate. A lead screw is provided in one of the vertical slide grooves. The two auxiliary plates are respectively slidably connected with the two ends of the vertical slide grooves through the lead screw. The two auxiliary parts are respectively provided on the two auxiliary plates for clamping the reinforcing sheet. The laminate is located between the two reinforcing sheets.

[0009] The adjustment component comprises two adjustment members, which are respectively arranged at two ends of the other vertical slide groove and are transmission-connected through a connecting member, and the two adjustment members are transmission-connected to the two auxiliary members respectively.

[0010] Preferably, a first groove is provided on a side of the auxiliary plate close to the laminate, a second groove is provided on the inner wall of the first groove, a bidirectional threaded rod is rotatably connected in the second groove, clamping plates are threadedly connected at both ends of the bidirectional threaded rod, the two clamping plates are used to clamp the reinforcement plate, and the bidirectional threaded rod is transmission-connected to the adjusting member.

[0011] Preferably, the adjusting member includes a worm rotatably connected to the auxiliary plate, one end of the bidirectional threaded rod extends into the auxiliary plate and is fixedly connected to a worm wheel, the worm wheel is meshed with the worm, two transmission boxes are slidably connected to the two ends of the vertical slide groove, the transmission box is fixed to the auxiliary plate, a driving shaft is rotatably connected in the transmission box, one end of the worm extends into the transmission box, and is fixedly connected to the driving shaft with a bevel gear, the two bevel gears are meshed, and the two driving shafts are transmission connected via the connecting member.

[0012] Preferably, one end of the two driving shafts extends out of the transmission box respectively, and the connecting member includes a connecting rod fixedly connected to one of the driving shafts, and a connecting groove is provided on the other driving shaft, and the connecting rod and the connecting groove are adapted to each other.

[0013] Preferably, the cross-sections of the connecting rod and the connecting groove are both rectangular.

[0014] Preferably, a through hole is formed on the inner side wall of the first groove, a push rod is slidably connected in the through hole, a push block is fixedly connected to one end of the push rod, and the push block is arranged in contact with the outer wall of the reinforcement sheet.

[0015] Preferably, one end of the push rod away from the push block is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to the inner wall of the through hole.

[0016] Compared with the prior art, the utility model has the following advantages and technical effects:

[0017] The utility model provides an auxiliary tooling for preparing a composite laminate compression performance test piece. The laminate is limitedly installed by a bottom frame and a top frame. After installation, a reinforcing sheet is placed on the auxiliary plate. The auxiliary member is controlled by an adjusting member to realize the positioning and stable clamping of the reinforcing sheet. After the reinforcing sheet is installed, the two auxiliary plates are controlled by a set screw to move synchronously toward the middle direction, so that the two reinforcing sheets are respectively attached to the upper and lower ends of the laminate, and the two reinforcing sheets are symmetrically clamped on the laminate, which is convenient for subsequent connection. The structure of the application is simple, and the symmetrical positioning and clamping of the upper and lower reinforcing sheets are ensured, and the two reinforcing sheets are evenly installed on the laminate, so that the force is evenly applied, and the stability of subsequent tests is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the auxiliary plate installation state of the utility model;

[0020] Figure 2 This is a schematic diagram of the auxiliary plate of the utility model when it is not installed;

[0021] Figure 3 This is a schematic diagram of the auxiliary component structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the auxiliary plate structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the adjusting member of the utility model;

[0024] Figure 6 This is a schematic diagram of the top rod structure of the utility model;

[0025] Among them, 1. processing table; 2. bottom frame; 3. top frame; 4. laminate; 5. auxiliary plate; 6. vertical plate; 7. vertical slide; 8. bidirectional threaded rod; 9. clamping plate; 10. worm; 11. worm wheel; 12. transmission box; 13. drive shaft; 14. bevel gear; 15. connecting rod; 16. connecting groove; 17. lead screw; 18. push rod; 19. push block; 20. spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1-Figure 6 The utility model provides an auxiliary tooling for preparing a composite laminate compression performance test piece, comprising:

[0029] A processing table 1, a bottom frame 2 is fixedly connected to the top of the processing table 1, a top frame 3 is detachably connected to the top of the bottom frame 2 by bolts, and a laminate 4 is arranged between the bottom frame 2 and the top frame 3;

[0030] The auxiliary assembly includes two auxiliary plates 5 and two auxiliary parts. A vertical plate 6 is fixedly connected to the top of the processing table 1. Two vertical slide grooves 7 are provided on the vertical plate 6. A lead screw 17 is provided in one of the vertical slide grooves 7. The two auxiliary plates 5 are respectively slidably connected to the two ends of the vertical slide groove 7 through the lead screw 17. The two auxiliary parts are respectively provided on the two auxiliary plates 5 for clamping the reinforcing sheet. The laminate 4 is located between the two reinforcing sheets.

[0031] The adjustment component includes two adjustment members, which are respectively arranged at two ends of another vertical slide groove 7 and are transmission-connected through a connecting member. The two adjustment members are transmission-connected to the two auxiliary members respectively.

[0032] The threaded rod on the lead screw 17 is a bidirectional threaded rod, that is, it synchronously drives the two auxiliary plates 5 to move toward the middle or toward the outside.

[0033] A further optimized solution is that a first groove is opened on the side of the auxiliary plate 5 close to the laminate plate 4, a second groove is opened on the inner wall of the first groove, a bidirectional threaded rod 8 is rotatably connected in the second groove, and clamping plates 9 are threadedly connected at both ends of the bidirectional threaded rod 8. The two clamping plates 9 are used to clamp the reinforcement plate, and the bidirectional threaded rod 8 is transmission-connected to the adjusting member.

[0034] Reference Figure 3 The reinforcing sheet is placed in the first groove, and the rotation of the bidirectional threaded rod 8 is controlled by the adjusting member. When rotating, the two clamping plates 9 are driven to move synchronously toward the middle to achieve synchronous clamping of reinforcing sheets of different sizes, thereby ensuring the symmetry of the upper and lower reinforcing sheets on the laminate 4.

[0035] A further optimized solution is provided, wherein the adjusting member comprises a worm 10 rotatably connected to the auxiliary plate 5, one end of the bidirectional threaded rod 8 extends into the auxiliary plate 5 and is fixedly connected to a worm wheel 11, the worm wheel 11 is meshed with the worm 10, two transmission boxes 12 are slidably connected at both ends of the vertical slide groove 7, the transmission box 12 is fixedly connected to the auxiliary plate 5, a drive shaft 13 is rotatably connected in the transmission box 12, one end of the worm 10 extends into the transmission box 12, and is fixedly connected to the drive shaft 13 with a bevel gear 14, the two bevel gears 14 are meshed, and the two drive shafts 13 are transmission connected via a connecting member.

[0036] Reference Figure 5 , two bevel gears 14 are meshed, and a driving motor is fixed in one of the transmission boxes 12. The driving motor is coaxially fixed to the corresponding driving shaft 13, and the driving motor drives the driving shaft 13 to rotate. When the driving shaft 13 rotates, the meshing bevel gear 14 drives the worm 10 to rotate. The worm 10 drives the two bidirectional threaded rods 8 to rotate synchronously through the meshing worm wheel 11, thereby realizing the synchronous clamping of the upper and lower reinforcement plates to ensure the symmetry of the two.

[0037] According to a further optimized solution, one end of the two drive shafts 13 extends out of the transmission box 12 respectively, and the connecting member includes a connecting rod 15 fixedly connected to one of the drive shafts 13, and a connecting groove 16 is provided on the other drive shaft 13, and the connecting rod 15 and the connecting groove 16 are adapted to each other.

[0038] The connecting rod 15 and the connecting groove 16 are slidably connected, so that when the distance between the two auxiliary plates 5 is adjusted, the driving shaft 13 can be adjusted synchronously, and it is ensured that it can also rotate synchronously when it has the adjustment function.

[0039] According to a further optimized solution, the cross-sections of the connecting rod 15 and the connecting groove 16 are both rectangular.

[0040] The connecting rod 15 and the connecting groove 16 of rectangular cross section ensure sliding between the two and synchronous rotation at the same time.

[0041] According to a further optimization scheme, a through hole is provided on the inner wall of the first groove, a push rod 18 is slidably connected in the through hole, a push block 19 is fixedly connected to one end of the push rod 18, and the push block 19 is arranged in contact with the outer wall of the reinforcing plate.

[0042] Reference Figure 4 The top block 19 is a spherical structure. The top rod 18 and the top block 19 apply force to the reinforcing sheet so that the other end contacts the inner wall of the first groove, and cooperates with the two clamping plates 9 to ensure its stable clamping, which is suitable for reinforcing sheets of different specifications.

[0043] According to a further optimized solution, one end of the ejector rod 18 away from the ejector block 19 is fixedly connected to one end of a spring 20 , and the other end of the spring 20 is fixedly connected to the inner wall of the through hole.

[0044] The spring 20 is provided to ensure that the top block 19 applies force to the reinforcing sheet.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An auxiliary tooling for preparing a composite laminate compression performance test piece, characterized in that: include: A processing table (1), wherein a bottom frame (2) is fixedly connected to the top of the processing table (1), a top frame (3) is detachably connected to the top of the bottom frame (2) via bolts, and a laminate (4) is arranged between the bottom frame (2) and the top frame (3); The auxiliary component comprises two auxiliary plates (5) and two auxiliary parts. The top of the processing table (1) is fixedly connected with a vertical plate (6). Two vertical slide grooves (7) are provided on the vertical plate (6). A lead screw (17) is provided in one of the vertical slide grooves (7). The two auxiliary plates (5) are respectively slidably connected to the two ends of the vertical slide groove (7) through the lead screw (17). The two auxiliary parts are respectively provided on the two auxiliary plates (5) for clamping the reinforcing sheet. The laminate (4) is located between the two reinforcing sheets. The adjustment component comprises two adjustment members, which are respectively arranged at two ends of the other vertical slide groove (7) and are transmission-connected via a connecting member, and the two adjustment members are respectively transmission-connected to the two auxiliary members.

2. The auxiliary tooling for preparing a composite laminate compression performance test piece according to claim 1, characterized in that: The auxiliary plate (5) is provided with a first groove on one side close to the laminate (4), and a second groove is provided on the inner wall of the first groove. A bidirectional threaded rod (8) is rotatably connected in the second groove, and clamping plates (9) are threadedly connected at both ends of the bidirectional threaded rod (8). The two clamping plates (9) are used to clamp the reinforcing plate, and the bidirectional threaded rod (8) is transmission-connected to the adjusting member.

3. The auxiliary tooling for preparing a composite laminate compression performance test piece according to claim 2, characterized in that: The adjusting member comprises a worm (10) rotatably connected to the auxiliary plate (5); one end of the bidirectional threaded rod (8) extends into the auxiliary plate (5) and is fixedly connected to a worm wheel (11); the worm wheel (11) meshes with the worm (10); two transmission boxes (12) are slidably connected at both ends of the vertical slide groove (7); the transmission box (12) is fixedly connected to the auxiliary plate (5); a drive shaft (13) is rotatably connected in the transmission box (12); one end of the worm (10) extends into the transmission box (12) and is fixedly connected to the drive shaft (13) with a bevel gear (14); the two bevel gears (14) mesh with each other; and the two drive shafts (13) are transmission-connected via the connecting member.

4. The auxiliary tooling for preparing a composite laminate compression test piece according to claim 3, characterized in that: One end of the two driving shafts (13) respectively extends out of the transmission box (12), and the connecting member includes a connecting rod (15) fixedly connected to one of the driving shafts (13), and a connecting groove (16) is provided on the other driving shaft (13), and the connecting rod (15) and the connecting groove (16) are adapted to each other.

5. The auxiliary tooling for preparing a composite laminate compression performance test piece according to claim 4, characterized in that: The cross sections of the connecting rod (15) and the connecting groove (16) are both rectangular.

6. The auxiliary tooling for preparing a composite laminate compression performance test piece according to claim 2, characterized in that: A through hole is provided on the inner side wall of the first groove, a push rod (18) is slidably connected in the through hole, a push block (19) is fixedly connected to one end of the push rod (18), and the push block (19) is arranged in contact with the outer wall of the reinforcement plate.

7. The auxiliary tooling for preparing a composite laminate compression test piece according to claim 6, characterized in that: One end of the push rod (18) away from the push block (19) is fixedly connected to one end of a spring (20), and the other end of the spring (20) is fixedly connected to the inner wall of the through hole.

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