Press fit assembly, shear force sample piece manufacturing tool and shear force sample piece manufacturing system

Abstract

The utility model relates to the technical field of rubber sample piece manufacturing, in particular to a pressing assembly and a shear force sample piece manufacturing tool and system.The pressing assembly comprises a pressing structure and a connecting shaft, one end of the connecting shaft is provided with a first pressing structure, and the side, away from the connecting shaft, of the first pressing structure is correspondingly provided with a second pressing structure; an elastic part is arranged between the pressing structure and the first pressing structure, and the pressing structure and the connecting shaft can move relatively, so that the first pressing structure can be close to or away from the second pressing structure, and the elastic part can be compressed. According to the pressing assembly provided by the invention, the magnitude of the pressing force applied to the sample piece by the first pressing structure can be controlled by controlling the deformation amount of the elastic piece, so that the sample piece coated with glue can be condensed and fixed under the same or similar pressing force condition, the consistency of test conditions of a plurality of sample pieces is ensured, and the test accuracy and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue sample production, in particular to a pressing component, a shear force sample production tool and a system. Background Art

[0002] In order to test the effect of applying glue shear force, after applying glue between the samples, tape is usually used to wrap the two samples together for fixation. The operation is troublesome, and it is impossible to control the size of the pressing force and the degree of fit between the two samples, making it difficult to ensure the consistency of the test conditions of multiple samples. Utility Model Content

[0003] The purpose of the invention of the utility model is to provide a pressing assembly, a shear force sample production tooling and a system to ensure the consistency of test conditions of multiple samples in order to solve the problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A pressing assembly comprises a pressing structure and a connecting shaft, wherein a first pressing structure is arranged at one end of the connecting shaft, a second pressing structure is arranged correspondingly at a side of the first pressing structure away from the connecting shaft, and an elastic member is arranged between the pressing structure and the first pressing structure, wherein:

[0006] The compression structure and the connecting shaft can move relative to each other, so that the first compression structure can be close to or away from the second compression structure, and the elastic member can be compressed.

[0007] The pressing assembly provided in the present application is used for tooling for making shear force specimens. The pressing assembly includes a pressing structure, a connecting shaft, a first pressing structure and a second pressing structure. An elastic member is arranged between the pressing structure and the first pressing structure. When in use, the specimen is placed between the first pressing structure and the second pressing structure. The first pressing structure is pushed close to the second pressing structure. After the first pressing structure abuts against the specimen, it continues to be pushed, and the elastic member is compressed. The pressing force applied to the specimen by the first pressing structure can be controlled by controlling the deformation of the elastic member, thereby ensuring that the specimen coated with glue can be solidified and fixed under the same or similar pressing force conditions, thereby ensuring the consistency of the test conditions of multiple specimens and improving the accuracy and reliability of the test.

[0008] As a preferred solution of the utility model, the elastic member is a compression spring, and the compression spring is sleeved on the outside of the connecting shaft.

[0009] The utility model also provides a shear force sample production tool, comprising the pressing assembly as described above.

[0010] During operation, the sample is placed between the first clamping structure and the second clamping structure, and the clamping structure is pushed close to the second clamping structure to compress the elastic part. The pressing force applied to the sample by the first clamping structure can be controlled by controlling the deformation of the elastic part, thereby ensuring that the sample coated with glue can be solidified and fixed under the same or similar pressing force conditions, ensuring the consistency of test conditions for multiple samples, and improving the accuracy and reliability of the test.

[0011] As a preferred solution of the utility model, it includes a base, the second clamping structure is fixed to the base, or the second clamping structure is integrally arranged with the base; the clamping structure is connected to the base, and the clamping structure can move relative to the base to make the first clamping structure approach or move away from the second clamping structure.

[0012] The shear force sample production tool provided in the present application includes a base and the pressing assembly as described above. The base can provide space and support for the placement of the sample, and connect the different components of the pressing assembly into a whole, thereby improving the convenience of using and moving the tool.

[0013] As a preferred solution of the utility model, the base includes a seat plate, and the seat plate is provided with a first groove portion and a second groove portion for placing the sample, and the first groove portion and the second groove portion are arranged on opposite sides of the second clamping structure.

[0014] The first groove portion and the second groove portion can provide constraints for the placement of the sample and reduce the slippage or deviation of the sample during the pressing process; arranging the first groove portion and the second groove portion on opposite sides of the second clamping structure can enable the two samples to be accurately docked, reduce the difficulty of operation, and help improve the production efficiency and yield rate of the samples.

[0015] As a preferred solution of the utility model, the base includes a seat plate and a positioning assembly, the positioning assembly is arranged on two opposite sides of the seat plate, and the positioning assembly includes:

[0016] A first positioning structure, the first positioning structure is located on a side of the seat plate where the pressing structure is provided;

[0017] A positioning shaft, two ends of which are respectively connected to the first positioning structure and the seat plate;

[0018] A positioning spring, the positioning spring is located between the first positioning structure and the seat plate;

[0019] A locking member, used to lock the first positioning structure so that the first positioning structure cannot move away from the seat plate;

[0020] The first positioning structure is connected to the pressing structure, and the first positioning structure can move relative to the seat plate to make the first pressing structure approach or move away from the second pressing structure.

[0021] The positioning components on both sides of the base plate can support the pressing structure more stably from both ends, and leave space for placing samples under the pressing structure; a first positioning structure is set, and the first positioning structure is connected to the base plate through a positioning shaft, which can provide a fixed surface for the installation and placement of the pressing structure. By adjusting the placement angle of the first positioning structure, the pressing structure can be placed in contact with the first positioning structure, so that the pressing structure can be placed smoothly and the direction of the pressing force applied by the first clamping structure can be accurate, which reduces the difficulty of operating the tooling and improves its efficiency; the first positioning structure is supported by a positioning shaft and a positioning spring, so that the first positioning structure can be placed at a certain distance from the base plate, leaving space for the first positioning structure to move, and the outward push of the positioning spring and the locking of the locking member cooperate to more conveniently achieve the fixation of the first positioning structure.

[0022] As a preferred solution of the utility model, the seat plate is provided with a guide block, the guide block is provided with a guide hole, the axial direction of the guide hole is parallel to the length direction of the connecting shaft, and one end of the positioning shaft is slidably connected to the guide hole; an anti-slip portion is provided at the end of the positioning shaft away from the first positioning structure, and the anti-slip portion can prevent the end of the positioning shaft close to the seat plate from slipping out of the guide hole.

[0023] The positioning shaft is slidably connected to the guide hole, so that the first positioning structure can move relative to the seat plate, thereby driving the first clamping structure to move closer to or away from the second clamping structure; the axial direction of the guide hole is parallel to the length direction of the connecting shaft, so that the first positioning structure and the pressing structure connected thereto can move along the length direction of the connecting shaft, thereby ensuring the accuracy of the pressing force application direction and improving the yield rate of the sample;

[0024] Specifically, the anti-slip portion can be an annular protrusion arranged at one end of the positioning shaft away from the first positioning structure, and a blocking member is correspondingly arranged at the end of the guide hole close to the first positioning structure. The annular protrusion is blocked by the blocking member to prevent the positioning shaft from slipping out of the guide hole.

[0025] As a preferred solution of the utility model, the locking member is a positioning screw, the first positioning structure is provided with a through hole, the positioning screw passes through the through hole and is connected to the seat plate.

[0026] One end of the positioning screw passes through the through hole and is connected to the seat plate, and the nut at the other end is blocked by the through hole, thereby locking the first positioning structure so that it cannot move away from the seat plate. The positioning screw has a simple structure, is easy to use, and has good connection tightness.

[0027] As a preferred solution of the utility model, the number of the first clamping structure, the connecting shaft and the elastic member is at least two, and the first clamping structure, the connecting shaft and the elastic member are arranged in groups.

[0028] Multiple first clamping structures, connecting shafts and elastic parts arranged in groups enable samples to be produced in batches at the same time, which is beneficial to improving production efficiency. In addition, each group is relatively independent, and a single sample or samples of different thicknesses can be produced simultaneously without the need to place the samples symmetrically, making the tooling more flexible.

[0029] As a preferred solution of the utility model, a groove is provided on the base, and the groove is located on the side of the second clamping structure; the first clamping structure has a first contact surface that contacts the sample, and the second clamping structure has a second contact surface that contacts the sample, and the first contact surface, the second contact surface and the bottom surface of the groove are all made of Teflon material.

[0030] The grooves are provided and Teflon material is used to facilitate the cleaning of overflowed glue, which is beneficial to maintaining the flatness of the surface of the second clamping structure, so that the tooling can be used repeatedly.

[0031] The utility model also provides a shear force sample production system, comprising a first sample, a second sample and the shear force sample production tooling as described above;

[0032] One end of the first sample and the second sample overlap, and the other end is far away from each other. Glue is applied between the overlapping ends of the first sample and the second sample, and the overlapping ends of the first sample and the second sample are placed between the first clamping structure and the second clamping structure.

[0033] The shear force sample production system provided in the present application, due to the use of the shear force production tooling as described above, can control the pressing force applied to the sample by the first clamping structure by controlling the deformation of the elastic part, thereby ensuring that the first sample and the second sample coated with glue can be solidified and fixed under the same or similar pressing force conditions, ensuring the consistency of test conditions for multiple samples, and improving the accuracy and reliability of the test.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0035] 1. The pressing assembly provided in the present application is used for a tooling for making shear force samples. The pressing assembly includes a pressing structure, a connecting shaft, a first pressing structure and a second pressing structure. An elastic member is arranged between the pressing structure and the first pressing structure. When in use, the sample is placed between the first pressing structure and the second pressing structure. The first pressing structure is pushed to approach the second pressing structure. After the first pressing structure abuts against the sample, it continues to be pushed, and the elastic member is compressed. The pressing force applied to the sample by the first pressing structure can be controlled by controlling the deformation of the elastic member, thereby ensuring that the sample coated with glue can solidify under the same or similar pressing force conditions, ensuring the consistency of the test conditions of multiple samples, and improving the accuracy and reliability of the test.

[0036] 2. The shear force sample production tooling provided in the present application, due to the use of the pressing assembly as described above, can control the pressing force applied to the sample by the first clamping structure by controlling the deformation of the elastic member, thereby ensuring that the sample coated with glue can be solidified and fixed under the same or similar pressing force conditions, ensuring the consistency of test conditions for multiple samples, and improving the accuracy and reliability of the test.

[0037] 3. The shear force sample production system provided in the present application, due to the use of the shear force production tooling as described above, can control the pressing force applied to the sample by the first clamping structure by controlling the deformation of the elastic part, thereby ensuring that the first sample and the second sample coated with glue can be solidified and fixed under the same or similar pressing force conditions, ensuring the consistency of test conditions for multiple samples, and improving the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the structure of the tooling for making the utility model;

[0039] Figure 2 A top view of the tooling for making the utility model;

[0040] Figure 3 A side view of the tooling for making the utility model;

[0041] Figure 4 It is a side view of the press-fit assembly of the utility model;

[0042] Figure 5 for Figure 4 Detailed drawing of middle section A;

[0043] Figure 6 It is a structural schematic diagram of the positioning component of the utility model;

[0044] Figure 7 It is a front view of the positioning assembly of the utility model;

[0045] Figure 8 It is a cross-sectional view of the positioning assembly of the utility model;

[0046] Fig. 9 It is a structural schematic diagram of the seat plate of the utility model.

[0047] Markings in the figure: 10-pressing assembly, 11-pressing structure; 12-first pressing structure; 13-second pressing structure; 14-connecting shaft; 15-pressing spring; 16-first contact surface; 17-second contact surface; 20-positioning assembly; 21-first positioning structure; 22-second positioning structure; 23-positioning shaft; 24-positioning spring; 25-locking member; 26-docking mechanism; 27-positioning groove; 28-positioning protrusion; 30-seat plate; 31-first groove portion; 32-second groove portion; 33-groove; 34-guide block; 35-guide hole. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0049] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product / equipment / device of the utility model when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0050] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0051] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0052] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0053] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0054] Example 1

[0055] A press-fit assembly, see Figure 4-5 , including a pressing structure 11 and a connecting shaft 14, a first pressing structure 12 is arranged at one end of the connecting shaft 14, a second pressing structure 13 is arranged correspondingly on the side of the first pressing structure 12 away from the connecting shaft 14, and an elastic member is arranged between the pressing structure 11 and the first pressing structure 12, wherein: the pressing structure 11 and the connecting shaft 14 can move relative to each other, so that the first pressing structure 12 can approach or move away from the second pressing structure 13, and the elastic member can be compressed.

[0056] The compression structure 11 may be a plate, or a box beam or a frame structure; the first compression structure 12 or the second compression structure 13 may be a block, or a box or a hollow structure.

[0057] The first clamping structure 12 and the second clamping structure 13 can be always spaced apart from each other, or can just be in contact with each other. When in use, the first clamping structure 12 and the second clamping structure 13 are separated to place a sample between the first clamping structure 12 and the second clamping structure 13.

[0058] The number of the elastic member may be one or more.

[0059] When in use, glue is applied on the end surfaces of the two samples, and the surfaces of the two samples coated with glue are made to fit together, the ends not coated with glue are away from each other, and the ends coated with glue are placed between the first clamping structure 12 and the second clamping structure 13, and the pressing structure 11 is pushed to move toward the second clamping structure 13, and the pressing structure 11 drives the first clamping structure 12 to approach the second clamping structure 13. When the first clamping structure 12 and the second clamping structure 13 are in contact with the samples, continuing to push the pressing structure 11 will compress the elastic member, and the elastic member applies an axial thrust to the first clamping structure 12 directed to the connecting shaft 14. The thrust acts on the sample through the first clamping structure 12, which is the pressing force that presses the two samples together. The size of the pressing force is determined by the elastic coefficient and deformation of the elastic member, and the size of the pressing force can be controlled more accurately, which is conducive to ensuring the uniformity of the size of the pressing force during multiple production of samples.

[0060] The pressing assembly 10 provided in the present application is used for a tooling for making shear force specimens. The pressing assembly 10 includes a pressing structure 11, a connecting shaft 14, a first pressing structure 12 and a second pressing structure 13. An elastic member is arranged between the pressing structure 11 and the first pressing structure 12. When in use, the specimen is placed between the first pressing structure 12 and the second pressing structure 13. The first pressing structure 12 is brought close to the second pressing structure 13 by pushing the pressing structure 11. After the first pressing structure 12 abuts against the specimen, it continues to be pushed, and the elastic member is compressed. The pressing force applied to the specimen by the first pressing structure 12 can be controlled by controlling the deformation of the elastic member, thereby ensuring that the specimen coated with glue can be solidified and fixed under the same or similar pressing force conditions, thereby ensuring the consistency of the test conditions of multiple specimens and improving the accuracy and reliability of the test.

[0061] Example 2

[0062] The pressing assembly provided in this embodiment is different from that in Embodiment 1 in that, in this embodiment, the elastic member is a compression spring 15, and the compression spring 15 is sleeved on the outside of the connecting shaft 14. The connecting shaft 14 can provide support for the compression spring 15, making the installation of the compression spring 15 easier.

[0063] The connecting shaft 14 may be a rod-shaped structural member.

[0064] A preferred way of setting the connecting shaft 14 is: a radially protruding boss is provided at one end of the connecting shaft 14 away from the first clamping structure 12, the pressing structure 11 is provided with an opening, and a sleeve can be provided at the opening position on the side of the pressing structure 11 away from the first clamping structure 12, and the sleeve is provided with a recess for placing the boss. When the clamping spring 15 is not compressed, the boss falls into the recess of the sleeve, and the sleeve can protect the boss from impact, thereby avoiding damage and deflection of the connecting shaft 14 caused by improper use; when the clamping spring 15 is compressed, the end of the connecting shaft 14 with the boss is away from the pressing structure 11.

[0065] Another preferred way of setting the connecting shaft 14 is: a slot is provided on one side of the pressing structure 11, and the end of the connecting shaft 14 away from the first clamping structure 12 extends into the slot, and the pressing structure 11 and the slot have a certain size along the length direction of the connecting shaft 14, so that the connecting shaft 14 can slide along the slot, and the end of the connecting shaft 14 away from the first clamping structure 12 is provided with a radially protruding claw, and the notch of the slot is provided with a blocking structure, which can prevent the connecting shaft 14 from escaping from the slot.

[0066] Example 3

[0067] This embodiment provides a shear force specimen production tool, including a pressing assembly 10 as described in Embodiment 1 or 2.

[0068] During operation, the sample is placed between the first clamping structure 12 and the second clamping structure 13, and the pressing structure 11 is pushed close to the second clamping structure 13 to compress the elastic part. The pressing force applied to the sample by the first clamping structure 12 can be controlled by controlling the deformation of the elastic part, thereby ensuring that the glue-coated sample can be solidified and fixed under the same or similar pressing force conditions, ensuring the consistency of test conditions for multiple samples, and improving the accuracy and reliability of the test.

[0069] Example 4

[0070] This embodiment provides a shear force sample production tool, see Figure 1-9 The difference from Example 3 is that it includes a base, the second clamping structure 13 is fixed to the base, or the second clamping structure 13 is integrally arranged with the base; the clamping structure 11 is connected to the base, and the clamping structure 11 can move relative to the base to make the first clamping structure 12 approach or move away from the second clamping structure 13.

[0071] The base is used to provide support for the installation of other structures. The base can connect the various structures of the tooling into a whole, which is convenient for the use and movement of the tooling.

[0072] In the pressing assembly 10, the function of the second pressing structure 13 is to provide a boundary for the pressing of the sample, so that the sample can be clamped and pressed by the first pressing structure 12 and the second pressing structure 13. Therefore, the second pressing structure 13 can be a relatively independent structural member and fixedly connected to the base, or it can be integrally arranged with the base as a part of the base to provide a boundary for the pressing of the sample.

[0073] A preferred way of connecting the pressing structure 11 and the base is that the base includes two oppositely arranged side panels, and the side panels are provided with strip grooves parallel to the length direction of the connecting axis 14. The two ends of the pressing structure 11 are inserted into the strip grooves and can slide along the strip grooves, so that the pressing structure 11 can move relative to the base.

[0074] Another preferred way of connecting the pressing structure 11 and the base is that shafts parallel to the length direction of the connecting shaft 14 are provided on both sides of the base, and the pressing structure 11 is correspondingly provided with two annular holes, which are sleeved on the shafts and can slide along the shafts, so that the pressing structure 11 can move relative to the base.

[0075] Preferably, the base and the pressing assembly 10 can be made of high temperature resistant materials, so that the tooling can be placed in an oven to accelerate the solidification of the glue and improve the production efficiency of the samples.

[0076] Preferably, for the convenience of lifting, a handle may be provided on the seat plate 30 , and the handle is arranged on two opposite sides of the seat plate 30 .

[0077] Preferably, the base includes a seat plate 30 , and the seat plate 30 is provided with a first groove portion 31 and a second groove portion 32 for placing the sample, and the first groove portion 31 and the second groove portion 32 are arranged on two opposite sides of the second clamping structure 13 .

[0078] The seat plate 30 is located at a side of the first pressing structure 12 away from the compression structure 11 , and the second pressing structure 13 and the seat plate 30 are fixedly connected or integrally arranged.

[0079] The first groove portion 31 and the second groove portion 32 are groove-type structures, which can be a concave structure relative to the surface of the seat plate 30, or can be formed by a barrier bar protruding from the surface of the seat plate 30; the size of the first groove portion 31 and the second groove portion 32 is slightly larger than the size of the sample, and the sample can be placed in the groove portion and maintain a stable position under the constraint of the groove portion.

[0080] The first groove portion 31 and the second groove portion 32 are arranged opposite to each other, and the midpoint of the line connecting the two is the second pressing structure 13 .

[0081] Further preferably, the bottoms of the first groove portion 31 and the second groove portion 32 have a certain height difference, which is roughly equal to the thickness of a single sample plus the thickness of the glue. In this embodiment, the bottom of the first groove portion 31 is lower than the bottom of the second groove portion 32, and the surface of the second clamping structure 13 is flush with the bottom of the first groove portion 31.

[0082] Example 5

[0083] The present embodiment provides a shear force sample manufacturing tooling, which is different from the embodiment 3 or 4 in that the base includes a seat plate 30 and a positioning assembly 20, and the positioning assembly 20 is arranged on two opposite sides of the seat plate 30, see Figure 1-3The positioning assembly 20 includes: a first positioning structure 21, the first positioning structure 21 is located on the side of the seat plate 30 where the pressing structure 11 is provided; a positioning shaft 23, the two ends of the positioning shaft 23 are respectively connected to the first positioning structure 21 and the seat plate 30; a positioning spring 24, the positioning spring 24 is located between the first positioning structure 21 and the seat plate 30; a locking member 25, the locking member 25 is used to lock the first positioning structure 21 so that the first positioning structure 21 cannot be away from the seat plate 30; the first positioning structure 21 is connected to the pressing structure 11, and the first positioning structure 21 can move relative to the seat plate 30, so that the first clamping structure 12 is close to or away from the second clamping structure 13.

[0084] The first positioning structure 21 may be a plate or a block structure, and the first positioning structure 21 is connected to the seat plate 30 via a positioning shaft 23 .

[0085] A preferred connection method is: the first positioning structure 21 is provided with an opening, one end of the positioning shaft 23 is fixedly connected to the seat plate 30 , and the other end passes through the opening on the first positioning structure 21 .

[0086] Another preferred connection method is: an opening is opened on the seat plate 30 , one end of the positioning shaft 23 is fixedly connected to the first positioning structure 21 , and the other end passes through the opening on the seat plate 30 .

[0087] The positioning spring 24 can be sleeved on the outside of the positioning shaft 23 , or can be separately provided from the positioning shaft 23 . When separately provided, one end or both ends of the positioning spring 24 are fixedly connected to the first positioning structure 21 and / or the seat plate 30 .

[0088] When the first positioning structure 21 is close to the seat plate 30, the positioning spring 24 is compressed. Under the action of the elastic restoring force, the positioning spring 24 has a tendency to move the first positioning structure 21 and the seat plate 30 away from each other. The locking member 25 can simultaneously connect the first positioning structure 21 and the seat plate 30, so that the first positioning structure 21 cannot move away from the seat plate 30, thereby achieving a locking effect; under the joint action of the locking member 25 and the positioning spring 24, the first positioning structure 21 can be fixed to the seat plate 30.

[0089] Optionally, the locking member 25 is a bolt or a buckle. In this embodiment, the locking member 25 is a positioning screw. The first positioning structure 21 is provided with a through hole. The positioning screw passes through the through hole and is connected to the seat plate 30. Figure 6-8 A nut is provided at one end of the positioning screw, and the cross-sectional size of the nut is larger than the size of the through hole. The end of the positioning screw without a nut passes through the through hole and is connected and fixed to the seat plate 30, while the end with the nut is blocked by the through hole, so that the first positioning structure 21 cannot move away from the seat plate 30.

[0090] Furthermore, a docking mechanism 26 can be provided on the seat plate 30 for connection with the positioning screw. The docking mechanism 26 can be a "J"-shaped structure, with a threaded hole adapted to the positioning screw on its top surface and a blank area in the middle for the positioning screw to pass through.

[0091] In this embodiment, the pressing structure 11 is a strip-shaped structural member, and the two ends of the pressing structure 11 in the length direction are respectively connected to the two first positioning structures 21, and a space is reserved between the pressing structure 11 and the seat plate 30 for placing the pressing assembly 10 and the sample.

[0092] The first positioning structure 21 provides a fixing surface for the installation of the pressing structure 11. The pressing structure 11 can be stably placed and the pressing force can be accurately applied by simply adjusting the position and angle of the first positioning structure 21 and making the pressing structure 11 fit the first positioning structure 21, thereby simplifying the operation steps.

[0093] Preferably, the number of the positioning shafts 23 may be one or more. In this embodiment, the number of the positioning shafts 23 in the same positioning assembly 20 is two, and they are symmetrically arranged on both sides of the first positioning structure 21 .

[0094] Preferably, the seat plate 30 is provided with a guide block 34, the guide block 34 is provided with a guide hole 35, the axial direction of the guide hole 35 is parallel to the length direction of the connecting shaft 14, and one end of the positioning shaft 23 is slidably connected to the guide hole 35; the end of the positioning shaft 23 away from the first positioning structure 21 is provided with an anti-slip portion, and the anti-slip portion can prevent the end of the positioning shaft 23 close to the seat plate 30 from slipping out of the guide hole 35.

[0095] The guide hole 35 may include a first hole section with a smaller aperture and a second hole section with a larger aperture. The first hole section is arranged on a side close to the first positioning structure 21. The anti-slip portion may be a radially protruding boss that can pass through the second hole section but is blocked by the first hole section, thereby preventing the positioning shaft 23 from slipping out of the guide hole 35.

[0096] The guide hole 35 can be set through the guide block 34 and the seat plate 30, or it can be a slot with one end closed; when it is set through, the end of the positioning shaft 23 without the anti-slip portion can pass through from under the seat plate 30 and then be fixedly connected to the first positioning structure 21.

[0097] Preferably, the first positioning structure 21 and the pressing structure 11 are detachably connected, see Figure 1-3 The two ends of the pressing structure 11 can be fixedly connected to the second positioning structure 22. The lower surface of the second positioning structure 22 is provided with a positioning protrusion 28, and the corresponding position of the first positioning structure 21 is provided with a positioning groove 27. The positioning protrusion 28 and the positioning groove 27 cooperate with each other, which is conducive to ensuring the alignment of the first clamping structure 12 and the second clamping structure 13.

[0098] A through hole may also be provided on the second positioning structure 22 , and the positioning screw passes through the second positioning structure 22 , the first positioning structure 21 and the seat plate 30 in sequence, so that the installation and disassembly of the pressing structure 11 are more convenient.

[0099] Example 6

[0100] The shear force sample manufacturing tool provided in this embodiment is different from that of Embodiment 3, 4 or 5 in that the number of the first clamping structure 12, the connecting shaft 14 and the elastic member are at least two, and the first clamping structure 12, the connecting shaft 14 and the elastic member are arranged in groups.

[0101] A plurality of first clamping structures 12, connecting shafts 14 and elastic members arranged in groups can enable multiple samples to be produced at the same time, thereby improving production efficiency. Furthermore, each group is relatively independent, and there is no need to place the samples symmetrically. A single sample or samples of different thicknesses can be produced simultaneously, and the tooling is more flexible in use.

[0102] Preferably, a groove 33 is provided on the base, and the groove 33 is located on the side of the second clamping structure 13; the first clamping structure 12 has a first contact surface 16 that contacts the sample, and the second clamping structure 13 has a second contact surface 17 that contacts the sample, and the first contact surface 16, the second contact surface 17 and the bottom surface of the groove 33 are all made of Teflon material.

[0103] The groove 33 may be located at two or four opposite sides of the second pressing structure 13 ; the surface of the groove 33 is lower than the surface of the second pressing structure 13 , and can accommodate overflowing glue.

[0104] The Teflon material has good non-stick properties, which facilitates the subsequent cleaning of glue spillage, thereby maintaining the flatness of the surfaces of the first clamping structure 12 and the second clamping structure 13, and facilitating multiple turnover uses of the tooling.

[0105] Example 7

[0106] A shear force sample production system includes a first sample, a second sample and a shear force sample production tool as described in Example 3 or 4 or 5 or 6; one end of the first sample and the second sample overlap, and the other end is far away, glue is applied between the overlapping ends of the first sample and the second sample, and the overlapping ends of the first sample and the second sample are placed between a first clamping structure 11 and a second clamping structure 12.

[0107] The shear force sample production system provided in the present application, due to the use of the shear force production tooling as described above, can control the pressing force applied to the sample by the first clamping structure 11 by controlling the deformation of the elastic member, thereby ensuring that the first sample and the second sample coated with glue can be solidified and fixed under the same or similar pressing force conditions, ensuring the consistency of test conditions for multiple samples, and improving the accuracy and reliability of the test.

[0108] Directions:

[0109] When in use, the pressing structure 11 can be removed first, and the first sample can be placed in the first groove portion 31, so that one end of the first sample is placed on the second clamping structure 13, and after glue is applied to the end, the second sample can be placed in the second groove portion 32, and one end of the second sample overlaps with the end of the first sample coated with glue; repeat the above steps, after placing multiple samples, lift the pressing structure 11, and let the first clamping structure 12 fall toward the corresponding second clamping structure 13, and the first clamping structure 12 continues to press down after contacting the sample, shortening the clamping spring 15 to a predetermined length, and use the locking member 25 to lock the pressing structure 11, and finally wait for the glue to solidify; if needed, the tooling and samples can also be placed in an oven to heat to accelerate the solidification of the glue.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A press-fit assembly, characterized in that: The invention comprises a pressing structure (11) and a connecting shaft (14), wherein a first pressing structure (12) is arranged at one end of the connecting shaft (14), a second pressing structure (13) is arranged correspondingly on a side of the first pressing structure (12) away from the connecting shaft (14), and an elastic member is arranged between the pressing structure (11) and the first pressing structure (12), wherein: The compression structure (11) and the connecting shaft (14) are capable of relative movement, so that the first compression structure (12) can approach or move away from the second compression structure (13), and the elastic member can be compressed.

2. A press-fit assembly according to claim 1, characterized in that: The elastic member is a compression spring (15), and the compression spring (15) is sleeved on the outside of the connecting shaft (14).

3. A shear force sample production tool, characterized in that: It comprises a pressing assembly (10) as claimed in claim 1 or 2.

4. The shear force sample production tool according to claim 3, characterized in that: It comprises a base, the second pressing structure (13) is fixed to the base, or the second pressing structure (13) is integrally arranged with the base; The pressing structure (11) is connected to the base, and the pressing structure (11) can move relative to the base so that the first pressing structure (12) is close to or away from the second pressing structure (13).

5. The shear force sample production tool according to claim 4, characterized in that: The base comprises a seat plate (30), wherein the seat plate (30) is provided with a first groove portion (31) and a second groove portion (32) for placing a sample, wherein the first groove portion (31) and the second groove portion (32) are arranged on opposite sides of the second clamping structure (13).

6. The shear force sample manufacturing tool according to claim 4, characterized in that: The base comprises a seat plate (30) and a positioning assembly (20), wherein the positioning assembly (20) is arranged on two opposite sides of the seat plate (30), and the positioning assembly (20) comprises: A first positioning structure (21), the first positioning structure (21) being located on a side of the seat plate (30) on which the pressing structure (11) is provided; A positioning shaft (23), wherein two ends of the positioning shaft (23) are respectively connected to the first positioning structure (21) and the seat plate (30); a positioning spring (24), the positioning spring (24) being located between the first positioning structure (21) and the seat plate (30); a locking member (25), the locking member (25) being used to lock the first positioning structure (21) so that the first positioning structure (21) cannot move away from the seat plate (30); The first positioning structure (21) is connected to the pressing structure (11), and the first positioning structure (21) can move relative to the seat plate (30) to make the first pressing structure (12) approach or move away from the second pressing structure (13).

7. The shear force sample manufacturing tool according to claim 6, characterized in that: The seat plate (30) is provided with a guide block (34), the guide block (34) is provided with a guide hole (35), the axial direction of the guide hole (35) is parallel to the length direction of the connecting shaft (14), and one end of the positioning shaft (23) is slidably connected to the guide hole (35); An anti-slip portion is provided at one end of the positioning shaft (23) away from the first positioning structure (21), and the anti-slip portion can prevent the end of the positioning shaft (23) close to the seat plate (30) from slipping out of the guide hole (35); The locking member (25) is a positioning screw, the first positioning structure (21) is provided with a through hole, and the positioning screw passes through the through hole and is connected to the seat plate (30).

8. The shear force sample manufacturing tool according to any one of claims 4 to 7, characterized in that: The number of the first clamping structure (12), the connecting shaft (14) and the elastic member is at least two, and the first clamping structure (12), the connecting shaft (14) and the elastic member are arranged in a group.

9. The shear force sample manufacturing tool according to any one of claims 4 to 7, characterized in that: The base is provided with a groove (33), and the groove (33) is located on the side of the second clamping structure (13); the first clamping structure (12) has a first contact surface (16) in contact with the sample, and the second clamping structure (13) has a second contact surface (17) in contact with the sample, and the first contact surface (16), the second contact surface (17) and the bottom surface of the groove (33) are all made of Teflon material.

10. A shear force sample production system, characterized in that: It comprises a first sample, a second sample and a shear force sample manufacturing tool as claimed in any one of claims 4 to 9; One end of the first sample piece and the second sample piece overlap, and the other end is away from each other, glue is applied between the overlapping ends of the first sample piece and the second sample piece, and the overlapping ends of the first sample piece and the second sample piece are placed between the first clamping structure (12) and the second clamping structure (13).

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