Extrusion testing device

Abstract

The utility model provides an extrusion testing device, which comprises a bearing component, a connecting component, a connecting component, a connecting component, a connecting component, a connecting component and a connecting component, wherein the connecting component is provided with a connecting end and a bearing end, and the connecting end is in driving connection with an external driving part; the driving assembly is arranged on the bearing end; the extrusion part is movably arranged on the driving assembly, the driving assembly can apply a preset acting force from the connecting end to the bearing end to the extrusion part, and the external driving part drives the bearing assembly to move in the first direction through the connecting end, so that the extrusion part extrudes the to-be-detected part; when the extrusion force of the extrusion part on the to-be-detected part is larger than the preset acting force, the extrusion part can move in the direction from the bearing end to the connecting end, so that the extrusion force of the extrusion part on the to-be-detected part is reduced. By applying the technical scheme of the utility model, the technical problem of inaccurate test results can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery extrusion, in particular to an extrusion testing device. Background Art

[0002] Most of the existing battery pack safety testing technologies use extrusion tests or simulation methods. Extrusion tests can make a more accurate assessment of the safety performance of battery packs. The commonly used method is to perform extrusion tests using battery extrusion equipment. However, due to the large range of existing extrusion equipment, when the extrusion equipment receives a stop command, there will be a delay in the transmission process, causing the extrusion head of the extrusion equipment to be unable to stop immediately. This will cause irreversible damage to the test sample, and the accuracy of the test results cannot be guaranteed. Utility Model Content

[0003] The embodiment of the utility model provides an extrusion testing device, which can improve the technical problem of inaccurate test results.

[0004] An embodiment of the utility model provides an extrusion test device, which includes: a receiving assembly, having a connecting end and a receiving end that are relatively arranged, and the connecting end is drivingly connected to an external driving member; a driving assembly, which is arranged on the receiving end; an extrusion member, which is movably arranged on the driving assembly, and the driving assembly can apply a preset force from the connecting end toward the receiving end to the extrusion member, and the external driving member drives the receiving assembly to move along a first direction through the connecting end, so that the extrusion member extrudes the member to be detected; wherein, when the extrusion force of the extrusion member on the member to be detected is greater than the preset force, the extrusion member can move in the direction from the receiving end toward the connecting end to reduce the extrusion force of the extrusion member on the member to be detected.

[0005] In one embodiment, the driving assembly includes: a guide sleeve, an end of the guide sleeve close to the receiving end is fixedly connected to the receiving end, the guide sleeve has a first accommodating cavity, and one end of the extrusion piece is movably arranged in the first accommodating cavity; a first driving member is arranged at an end of the guide sleeve away from the receiving end, the first driving member has a second accommodating cavity connected to the first accommodating cavity, and the first driving member can move one end of the extrusion piece in the first accommodating cavity and the second accommodating cavity so that the other end of the extrusion piece can extrude the part to be detected.

[0006] In one embodiment, the first driving member includes: a coil having a first connecting end and a second connecting end arranged opposite to each other; a mounting member arranged at an end of the guide sleeve away from the receiving end, the coil is arranged on the mounting member, and the first connecting end and the second connecting end are exposed at the periphery of the mounting member, the first connecting end and the second connecting end are respectively connected to electrodes of different polarities and cooperate with the mounting member to generate a preset force.

[0007] In one embodiment, the adjustment assembly also includes a guide column, which is arranged in the first accommodating cavity, one end of the guide column is fixedly connected to the center of the bottom wall of the first accommodating cavity, the guide column extends along the axis of the guide sleeve, and the guide column is plugged into one end of the extrusion member to guide the extrusion member.

[0008] In one embodiment, when the extrusion piece is subjected to a preset force, one end of the extrusion piece is limitedly matched with one end of the mounting piece close to the guide sleeve, and a gap is formed between the inner wall of the second accommodating cavity and the outer wall of the extrusion piece.

[0009] In one embodiment, the gap is L, 0 mm ≤ L ≤ 0.3 mm.

[0010] In one embodiment, the receiving assembly includes: a first receiving member, which is drivingly connected to an external driving member; a second receiving member, which is arranged at intervals with the first receiving member along a first direction, and the second receiving member can move relative to the first receiving member along the first direction, and the driving assembly is arranged on a side of the second receiving member away from the first receiving member.

[0011] In one embodiment, the extrusion testing device also includes a detection member, which is arranged on a side of the first receiving member close to the second receiving member. When the extrusion member extrudes the member to be detected, the second receiving member moves toward the side close to the first receiving member and extrudes the member to be detected, so that the detection member can detect the force of the extrusion member.

[0012] In one embodiment, the extrusion testing device further includes a guide assembly, which is disposed between the first receiving member and the second receiving member, and is used to guide the second receiving member.

[0013] In one embodiment, the guide assembly includes a guide member and a fixed sleeve, the fixed sleeve is arranged on a side of the second receiving member away from the first receiving member, the guide member and the fixed sleeve are limitedly matched, the first receiving member has a first guide hole, the second receiving member has a second guide hole, the fixed sleeve has a third guide hole, the axes of the guide member, the first guide hole, the second guide hole and the third guide hole coincide with each other, and the guide member is connected with the first guide hole, the second guide hole and the third guide hole along a first direction.

[0014] By applying the technical solution of the utility model, a driving assembly and an extruding member are arranged on the receiving assembly, and the extruding member can move in a first direction relative to the driving assembly. When the extruding force of the extruding member on the member to be detected is greater than the preset force, the extruding member can move in the direction from the receiving end toward the connecting end to reduce the extruding force of the extruding member on the member to be detected. This can prevent the excessive extrusion force from causing irreversible damage to the structure of the battery, thereby protecting the structure of the battery and ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of an extrusion testing device provided by an embodiment of the utility model;

[0017] Figure 2 It is a side schematic diagram of an extrusion testing device provided by an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the assembly of the drive assembly and the extrusion member provided in the embodiment of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of a guide sleeve provided in an embodiment of the utility model;

[0020] Figure 5 is a three-dimensional schematic diagram of a first driving member provided in an embodiment of the utility model;

[0021] Figure 6 It is a three-dimensional schematic diagram of an extrusion member provided in an embodiment of the utility model;

[0022] Figure 7 It is a three-dimensional schematic diagram of a first receiving member provided in an embodiment of the utility model;

[0023] Figure 8 It is a three-dimensional schematic diagram of a second receiving member provided in an embodiment of the utility model;

[0024] Fig. 9 It is a three-dimensional schematic diagram of a fixing sleeve provided in an embodiment of the utility model.

[0025] The above drawings include the following reference numerals:

[0026] 11. first receiving member; 111. first guide hole; 12. second receiving member; 121. second guide hole;

[0027] 21. guide sleeve; 211. first accommodating chamber; 22. first driving member; 221. coil; 2211. first connecting end; 2212. second connecting end; 222. mounting member; 2221. second accommodating chamber; 223. guide column;

[0028] 30. Extrusion parts;

[0029] 40. Inspection parts;

[0030] 51, guide member; 52, fixing sleeve; 521, third guide hole; X, first direction. DETAILED DESCRIPTION

[0031] 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] like Figures 1 to 6 The embodiment of the utility model shown provides an extrusion test device, which includes: a receiving assembly, having a connecting end and a receiving end relatively arranged, and the connecting end is drivingly connected to an external driving member; a driving assembly, which is arranged on the receiving end; an extrusion member 30, which is movably arranged on the driving assembly, and the driving assembly can apply a preset force from the connecting end toward the receiving end to the extrusion member 30, and the external driving member drives the receiving assembly to move along the first direction through the connecting end, so that the extrusion member 30 extrude the member to be detected 40; wherein, when the extrusion force of the extrusion member 30 on the member to be detected 40 is greater than the preset force, the extrusion member 30 can move in the direction from the receiving end toward the connecting end, so as to reduce the extrusion force of the extrusion member 30 on the member to be detected 40.

[0033] By applying the technical solution of the utility model, a driving assembly and an extrusion member 30 are arranged on the receiving assembly, and the extrusion member 30 can move along a first direction relative to the driving assembly. When the extrusion force of the extrusion member 30 on the detection member 40 is greater than a preset force, the extrusion member 30 can move along the receiving end toward the connecting end to reduce the extrusion force of the extrusion member 30 on the detection member 40. This can prevent the excessive extrusion force from causing irreversible damage to the structure of the battery, thereby protecting the structure of the battery and ensuring the accuracy of the test results.

[0034] In the present application, the component to be detected is a battery.

[0035] Further, the driving assembly includes: a guide sleeve 21, one end of the guide sleeve 21 close to the receiving end is fixedly connected to the receiving end, the guide sleeve 21 has a first accommodating cavity 211, one end of the extrusion member 30 is movably arranged in the first accommodating cavity 211; a first driving member 22, arranged at one end of the guide sleeve 21 away from the receiving end, the first driving member 22 has a second accommodating cavity 2221 connected to the first accommodating cavity 211, and the first driving member 22 can move one end of the extrusion member 30 in the first accommodating cavity 211 and the second accommodating cavity 2221, so that the other end of the extrusion member 30 can extrude the to-be-detected member 40. The movement of the extrusion member 30 can be guided by the guide sleeve 21, so that the stability of the extrusion member 30 when moving can be ensured, which is conducive to ensuring the stability of the extrusion process.

[0036] In the present application, X is parallel to the axis of the guide sleeve.

[0037] Specifically, the first driving member 22 includes: a coil 221, having a first connecting end 2211 and a second connecting end 2212 arranged opposite to each other; a mounting member 222, arranged at an end of the guide sleeve 21 away from the receiving end, the coil 221 is arranged on the mounting member 222, and the first connecting end 2211 and the second connecting end 2212 are exposed at the periphery of the mounting member 222, the first connecting end 2211 and the second connecting end 2212 are respectively connected to electrodes of different polarities and cooperate with the mounting member 222 to generate a preset force. In the present application, the material of the mounting member 222 is iron, and it is arranged in this way that when the first connecting end 2211 and the second connecting end 2212 are connected to the positive and negative poles of the external power supply, when the current passes through the coil 221, a magnetic field will be generated around the coil 221, and after cooperating with the mounting member 222, the mounting member 222 is magnetized by the magnetic field, and the magnetized magnetic field becomes a magnet, which can generate electromagnetic force to drive the extrusion member 30. Since the magnetism of the electromagnet is generated by energizing, the magnetism of the electromagnet can be effectively controlled by turning the current on and off. When the power is off, the magnetism of the electromagnet will disappear immediately, and when the power is on, the magnetism of the electromagnet will be generated immediately, so it is easy to control it. At the same time, the size of the magnetism of the electromagnet can also be controlled by the current. The greater the current intensity, the greater the magnetism of the electromagnet. Conversely, when the current intensity is smaller, the magnetism of the electromagnet is smaller. In addition, the size of the magnetism of the electromagnet can also be controlled by the number of turns of the coil 221. The more turns, the greater the magnetism, and the fewer turns, the smaller the magnetism. The above-mentioned driving method is simple and reliable, and can output a corresponding force to the extrusion member 30 according to the detection requirements, thereby meeting the testing requirements of the device.

[0038] In the present application, the coil 221 is arranged inside the mounting member 222 and is integrally formed with the mounting member 222. This arrangement not only facilitates the processing of the component and reduces the processing difficulty of the component, but also can reduce the space required for the installation of the component, thereby facilitating the miniaturization of the device.

[0039] Furthermore, the adjustment component also includes a guide column 223, which is arranged in the first accommodating cavity 211, one end of the guide column 223 is fixedly connected to the center of the bottom wall of the first accommodating cavity 211, and the guide column 223 extends along the axis of the guide sleeve 21. The guide column 223 is plugged into and matched with one end of the extrusion member 30 to guide the extrusion member 30. This arrangement can prevent the extrusion member 30 from being offset during movement, thereby ensuring the accuracy of the extrusion member 30 during extrusion. In the present application, the extension length of the guide column 223 is less than the extension length of the guide sleeve 21. Optionally, the length of the guide column 223 can also be set to other sizes, and the specific setting should be selected according to the use environment of the device, which can improve the applicability and scope of application of the device.

[0040] Specifically, when the extrusion member 30 is subjected to a preset force, one end of the extrusion member 30 is limitedly matched with one end of the mounting member 222 close to the guide sleeve 21, and a gap is formed between the inner wall of the second accommodating cavity and the outer wall of the extrusion member 30. This arrangement can prevent the inner wall of the second accommodating cavity from being tightly fitted with the outer wall of the extrusion member 30, which causes friction between the inner wall of the second accommodating cavity and the outer wall of the extrusion member 30, thereby making it difficult for the driving component to drive the extrusion member 30, and having a certain influence on the driving force of the extrusion member 30, thereby reducing the detection efficiency of the part 40 to be detected and the accuracy of the detection result.

[0041] In the present application, the second accommodating cavity is a variable diameter structure, and the diameter of the end of the second accommodating cavity close to the receiving component is larger than the diameter of the end of the second accommodating cavity away from the receiving component. This arrangement can not only meet the limiting requirements for the extrusion component 30, but also enable the extrusion component 30 to move in the second accommodating cavity 2221.

[0042] Furthermore, the gap is L, 0mm≤L≤0.3mm. When L is greater than 0.3mm, the gap between the inner wall of the second accommodating cavity and the outer wall of the extrusion member 30 is too large, which will cause the component to occupy too much installation space, and may also cause the extrusion member 30 to shake in the second accommodating cavity 2221, which is not conducive to the normal operation of the extrusion member 30 and reduces the detection efficiency of the device. Therefore, 0mm≤L≤0.3mm can not only prevent the extrusion member 30 from shaking in the second accommodating cavity 2221, but also ensure the normal operation of the extrusion member 30. In this application, the maximum value of L is 0.1mm.

[0043] like Figures 7 to 9 As shown, specifically, the receiving assembly includes: a first receiving member 11, which is drivingly connected to an external driving member; a second receiving member 12, which is arranged with the first receiving member 11 in a first direction, and the second receiving member 12 can move relative to the first receiving member 11 in the first direction, and the driving assembly is arranged on a side of the second receiving member 12 away from the first receiving member 11. In the present application, the driving assembly is arranged on the second receiving member 12, so that the extrusion force of the extrusion member 30 can be adjusted in time, thereby improving the adjustment efficiency of the assembly, and preventing the extrusion member 30 from damaging the battery structure as much as possible. At the same time, the first receiving member 11 and the second receiving member 12 are square clamps. Optionally, the shapes and materials of the first receiving member 11 and the second receiving member 12 can also be set to other types. The shape can be set to round or trapezoidal, etc., and the material can be set to metal materials such as iron and aluminum. Since iron is relatively hard and has a certain ductility, it is easy to process. Since the density of aluminum is very small, only 2.7g / cm3, although it is relatively soft, it can be made into various aluminum alloys, such as hard aluminum, super hard aluminum, rust-proof aluminum, cast aluminum, etc., and the aluminum alloy is high in strength but still relatively light, so it can meet the strength requirements of the structure. At the same time, aluminum has good ductility, so it is easy to process the structure, which can improve the processing efficiency of the structure. The specific setting should be selected according to the use environment of the device. As long as it can meet the use environment of the device, it can improve the applicability and scope of application of the device.

[0044] Furthermore, the extrusion test device further includes a detection member 40, which is arranged on a side of the first receiving member 11 close to the second receiving member 12. When the extrusion member 30 extrudes the member to be detected 40, the second receiving member 12 moves toward the side close to the first receiving member 11 and extrudes the member to be detected 40, so that the detection member 40 detects the force of the extrusion member 30. This arrangement facilitates the user to monitor the extrusion force during the test, so that the extrusion test method can be better adjusted to improve the test efficiency.

[0045] The detection element 40 may include a piezoresistive pressure sensor, a ceramic pressure sensor or a diffused silicon pressure sensor. The resistance strain gauge is one of the main components of the piezoresistive strain sensor. The working principle of the metal resistance strain gauge is that the resistance value of the strain resistor adsorbed on the base material changes with the mechanical deformation, which is commonly known as the resistance strain effect. The ceramic pressure sensor is based on the piezoresistive effect. The pressure acts directly on the front surface of the ceramic diaphragm, causing the diaphragm to produce a small deformation. The thick film resistor is printed on the back of the ceramic diaphragm and connected into a Wheatstone bridge. Due to the piezoresistive effect of the varistor, the bridge produces a highly linear voltage signal proportional to the pressure and proportional to the excitation voltage. The standard signal is calibrated to 2.0 / 3.0 / 3.3mV / V according to the different pressure ranges, which can be compatible with the strain sensor. The working principle of the diffused silicon pressure sensor is also based on the piezoresistive effect. Using the principle of piezoresistive effect, the pressure of the measured medium acts directly on the diaphragm of the sensor (stainless steel or ceramic), causing the diaphragm to produce a micro-displacement proportional to the medium pressure, causing the resistance value of the sensor to change, and the electronic circuit detects this change and converts and outputs a standard measurement signal corresponding to this pressure. The specific settings should be selected according to the use environment of the device, as long as they can meet the use requirements of the device.

[0046] Specifically, the extrusion test device further includes a guide assembly, which is disposed between the first receiving member 11 and the second receiving member 12, and is used to guide the second receiving member 12. The guide assembly can prevent the second receiving member 12 from being offset during movement, thereby ensuring the accuracy of the extrusion member 30 during extrusion.

[0047] Further, the guide assembly includes a guide member 51 and a fixing sleeve 52, the fixing sleeve 52 is arranged on a side of the second receiving member 12 away from the first receiving member 11, the guide member 51 and the fixing sleeve 52 are limitedly matched, the first receiving member 11 has a first guide hole 111, the second receiving member 12 has a second guide hole 121, the fixing sleeve 52 has a third guide hole 521, the axes of the guide member 51, the first guide hole 111, the second guide hole 121 and the third guide hole 521 coincide with each other, and the guide member 51 is connected with the first guide hole 111, the second guide hole 121 and the third guide hole 521 along the first direction. The above structure is simple and easy to process, which can not only realize the guiding function of the assembly, but also reduce the production cost of the device, and the above structure is also convenient for the assembly and disassembly of the device, thereby improving the disassembly efficiency of the device.

[0048] By applying the technical solution of the utility model, a driving assembly and an extrusion member 30 are arranged on the receiving assembly, and the extrusion member 30 can move along a first direction relative to the driving assembly. When the extrusion force of the extrusion member 30 on the detection member 40 is greater than a preset force, the extrusion member 30 can move along the receiving end toward the connecting end to reduce the extrusion force of the extrusion member 30 on the detection member 40. This can prevent the excessive extrusion force from causing irreversible damage to the structure of the battery, thereby protecting the structure of the battery and ensuring the accuracy of the test results.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0054] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An extrusion testing device, characterized in that: The extrusion testing device comprises: A receiving assembly having a connecting end and a receiving end arranged opposite to each other, wherein the connecting end is drivingly connected to an external driving member; A driving assembly, arranged on the receiving end; An extrusion member is movably arranged on the driving assembly, and the driving assembly can apply a preset force from the connecting end toward the receiving end to the extrusion member, and the external driving member drives the receiving assembly to move along a first direction through the connecting end, so that the extrusion member extrudes the to-be-detected member; Wherein, when the extrusion force of the extrusion member on the member to be detected is greater than the preset force, the extrusion member can move in the direction from the receiving end toward the connecting end to reduce the extrusion force of the extrusion member on the member to be detected.

2. The extrusion testing device according to claim 1, characterized in that: The drive assembly comprises: A guide sleeve, one end of which is close to the receiving end and is fixedly connected to the receiving end, the guide sleeve having a first accommodating cavity, one end of the extrusion piece being movably disposed in the first accommodating cavity; The first driving member is arranged at an end of the guide sleeve away from the receiving end. The first driving member has a second accommodating cavity connected to the first accommodating cavity. The first driving member can move one end of the extrusion member in the first accommodating cavity and the second accommodating cavity so that the other end of the extrusion member extrude the part to be detected.

3. The extrusion testing device according to claim 2, characterized in that: The first driving member comprises: The coil has a first connection end and a second connection end that are arranged opposite to each other; The mounting member is arranged at one end of the guide sleeve away from the receiving end, the mounting member has the second accommodating cavity, the coil is arranged on the mounting member, and the first connecting end and the second connecting end are exposed at the periphery of the mounting member, the first connecting end and the second connecting end are respectively connected to electrodes of different polarities and cooperate with the mounting member to generate the preset force.

4. The extrusion testing device according to claim 2, characterized in that: The driving assembly also includes a guide column, which is arranged in the first accommodating cavity. One end of the guide column is fixedly connected to the center of the bottom wall of the first accommodating cavity. The guide column extends along the axis of the guide sleeve. The guide column is plugged into and matched with one end of the extrusion member to guide the extrusion member.

5. The extrusion testing device according to claim 3, characterized in that: When the extrusion member is subjected to the preset force, one end of the extrusion member is limitedly matched with one end of the mounting member close to the guide sleeve, and a gap is formed between the inner wall of the second accommodating cavity and the outer wall of the extrusion member.

6. The extrusion testing device according to claim 5, characterized in that: The gap is L, 0mm≤L≤0.3mm.

7. The extrusion testing device according to any one of claims 1 to 6, characterized in that: The receiving component comprises: A first receiving member, drivingly connected to the external driving member; The second receiving member is arranged with the first receiving member in a spaced relationship along the first direction. The second receiving member can move relative to the first receiving member along the first direction. The driving assembly is arranged on a side of the second receiving member away from the first receiving member.

8. The extrusion testing device according to claim 7, characterized in that: The extrusion testing device also includes a detection member, which is arranged on a side of the first receiving member close to the second receiving member. When the extrusion member extrudes the member to be detected, the second receiving member moves toward the side close to the first receiving member and extrudes the member to be detected, so that the detection member detects the force of the extrusion member.

9. The extrusion testing device according to claim 7, characterized in that: The extrusion testing device further includes a guide assembly, which is disposed between the first receiving member and the second receiving member and is used to guide the second receiving member.

10. The extrusion testing device according to claim 9, characterized in that: The guide assembly includes a guide member and a fixed sleeve, the fixed sleeve is arranged on a side of the second receiving member away from the first receiving member, the guide member and the fixed sleeve are limitedly matched, the first receiving member has a first guide hole, the second receiving member has a second guide hole, and the fixed sleeve has a third guide hole, the axes of the guide member, the first guide hole, the second guide hole and the third guide hole coincide with each other, and the guide member is connected with the first guide hole, the second guide hole and the third guide hole along the first direction.

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