Auxiliary test tool

Abstract

The utility model relates to the technical field of vehicle test equipment, and discloses an auxiliary test tool which is used for assisting a press machine in testing a connecting piece. The auxiliary test tool comprises a base, a connecting structure and a locking structure, wherein the connecting structure is configured to be connected with the base so as to fix a vehicle body plate sample on the base; the locking structure is mounted on the base, and the locking structure is configured to be connected with the connecting piece so as to fix the vehicle frame sample to the vehicle body plate sample; the base is suitable for being placed on a working table top of the press machine so that the press machine can apply tangential force to the connecting piece through the frame sample. The auxiliary testing tool is simple in structure and low in manufacturing cost, and can be matched with a conventional press machine to test the sliding force of the connecting piece for the vehicle, so that the testing cost of the sliding force of the connecting piece for the vehicle is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle testing equipment technology, and in particular to an auxiliary testing fixture. Background Technology

[0002] Electric vehicles, due to their high torque and heavy weight, experience significantly increased loads at subframe connection points compared to traditional gasoline vehicles. Therefore, when designing the subframe interface for electric vehicles, it is crucial to thoroughly calculate and verify the sliding force of the connectors linking the subframe and body panels. This ensures reliable connection point design and prevents major issues such as torque loosening and abnormal sliding noise. Currently, the equipment used to verify the sliding force of subframe connectors is expensive, resulting in high testing costs for these connectors. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an auxiliary testing fixture that can perform slip force testing on vehicle connectors using a conventional press, effectively reducing testing costs.

[0004] The auxiliary testing fixture according to an embodiment of the present utility model includes:

[0005] Base;

[0006] A connection structure is configured to connect to the base to fix the body panel sample to the base;

[0007] A locking structure is mounted on the base and is configured to connect with the connector to fix the frame sample to the body panel sample.

[0008] The base is adapted to be placed on the worktable of the press so that the press can apply a tangential force to the connector through the frame sample.

[0009] The auxiliary testing fixture according to the embodiments of this utility model has at least the following beneficial effects:

[0010] By stably placing the base under the press head of the press, fixing the car body panel sample to the base using a connecting structure, and fixing the connector to the base using a locking structure, the connecting components installed on the auxiliary testing fixture can accurately measure the sliding force data of the connector under the pressure of a conventional press, thus reducing testing costs. The auxiliary testing fixture in this embodiment has a simple structure and low manufacturing cost, which can further reduce testing costs.

[0011] According to some embodiments of this utility model, the locking structure is provided in multiple ways, and different locking structures are suitable for connecting different types of connectors. Multiple locking structures are selected and detachably installed on the base.

[0012] According to some embodiments of the present invention, the base is provided with a mounting hole, the locking structure passes through the mounting hole, the inner sidewall of the mounting hole is provided with a first limiting plane, the outer sidewall of the locking structure is provided with a second limiting plane, and the first limiting plane and the second limiting plane are attached to each other to restrict the locking structure from rotating around its own axis.

[0013] According to some embodiments of the present utility model, the base is provided with a mounting hole, the locking structure passes through the mounting hole, and the base is also provided with a locking hole, which communicates with the mounting hole along the radial direction of the mounting hole;

[0014] The auxiliary testing fixture also includes a first limiting member, which is installed in the locking hole, and the end of the first limiting member abuts against the outer wall of the locking structure to restrict the locking structure from rotating around its own axis.

[0015] According to some embodiments of the present utility model, the base is provided with a mounting hole, the locking structure passes through the mounting hole, the inner sidewall of the mounting hole is provided with a first slot, the outer sidewall of the locking structure is provided with a second slot, and the second slot cooperates with the first slot to form a limiting hole;

[0016] The auxiliary testing fixture also includes a second limiting member, which passes through the limiting hole to restrict the locking structure from rotating around its own axis.

[0017] According to some embodiments of the present invention, the base includes a main body and a first support part connected to the main body, the locking structure is installed on the main body, and the connecting structure is used to connect with the main body to fix the car body panel sample to the main body;

[0018] When the locking structure is connected to the connector to fix the frame sample to the body panel sample, the frame sample is located on the first side of the main body in the first direction, and the first support is disposed on the first side of the main body and extends in the first direction.

[0019] According to some embodiments of the present invention, there are two first support portions, which are respectively connected to the two ends of the main body portion along the second direction. The main body portion and each of the first support portions form an open accommodating space on the upper side. The accommodating space is used to place the connector, the frame sample and the body panel sample. The second direction intersects with the first direction.

[0020] According to some embodiments of the present invention, the base further includes a second support portion, which is connected to the end of the first support portion away from the main body portion, and the second support portion extends along a second direction, which intersects with the first direction.

[0021] According to some embodiments of the present invention, the locking structure has a threaded hole for threaded connection with the connecting member;

[0022] And / or, the connection structure is configured as a threaded fastener, and the connection structure is configured to connect with the base to fix the body panel sample to the base.

[0023] According to some embodiments of the present invention, the auxiliary testing fixture further includes a pressure block, which is used to connect to the pressure head of the press.

[0024] The pressure block has a groove on the side facing the frame sample that matches the frame sample.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1 This is a schematic diagram of the auxiliary testing fixture in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Exploded view of the auxiliary testing fixture;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 for Figure 1 A cross-sectional view of the auxiliary testing fixture.

[0031] Icon labels:

[0032] Base 100, main body 101, first support part 102, second support part 103, accommodating space 104, mounting hole 110, first slot 111, locking hole 120, first limiting member 121;

[0033] Connection structure 200;

[0034] Locking structure 300, second slot 310, second limiting member 320;

[0035] Pressure block 400, groove 410;

[0036] Connector 500, frame sample 510, body panel sample 520. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] The auxiliary testing fixture of this embodiment is used to assist a press in testing the sliding force of a vehicle connector 500. The connector 500 mentioned in this embodiment is typically a structure on a vehicle used to connect the subframe and body panels; for example, the connector 500 can be a bolt, pin, or similar structure. The electrification of automobiles has led to an increase in the overall weight of the vehicle. Therefore, the connector 500 of electric vehicles needs to have its sliding force fully calculated and verified to improve vehicle safety. Currently, dedicated equipment for verifying the sliding force of vehicle connectors 500 is expensive and has poor applicability, resulting in high testing costs for the sliding force of vehicle connectors 500. To solve the above technical problems, this embodiment proposes an auxiliary testing fixture that can be used in conjunction with a conventional press to test the sliding force of connectors 500, thereby reducing the testing cost of connectors 500. The following description, in conjunction with the appendix... Figures 1 to 4 The auxiliary testing fixture of this embodiment will be described in detail.

[0042] The auxiliary testing fixture in this embodiment is used to fix the vehicle connector 500 under the pressure head of a press. The pressure head of the press then applies a set pressure to the vehicle connector 500. From the force-displacement curve displayed on the press, the sliding force corresponding to the inflection point of the connector 500's slippage can be obtained. Then, based on the measured sliding force, the actual safety factor of the connector 500 is obtained. If the actual safety factor is greater than the set safety factor of the connector 500, then the connector 500 can be considered to meet the design requirements. The actual safety factor is the ratio of the measured actual sliding force to the maximum external tangential force that the connector 500 must withstand. The maximum external tangential force that the connector 500 must withstand is determined by the vehicle model and the specific location of the connector 500, and can be obtained through a query.

[0043] In this embodiment, the connector 500 refers to a structure on a vehicle used to connect the subframe and the body panel. To improve the accuracy of the measured slip force data of the connector 500, a frame sample 510 and a body panel sample 520 are typically prepared. The frame sample 510 can be a one-to-one replica of the original vehicle frame sample in shape, size, and material, or it can be obtained by cutting a portion from the original vehicle frame. Similarly, the body panel sample 520 can be a one-to-one replica of the original vehicle body panel in shape, size, and material, or it can be obtained by cutting a portion from the original vehicle body panel. The body panel sample 520 can have a single-layer structure or a multi-layer structure. If the body panel sample 520 has a multi-layer structure, it is preferable that the multi-layer structures are connected into a whole by means of bonding, welding, or other methods. When testing the slip force of the connector 500, the press head of the press applies a set tangential force to the frame sample 510 to better reflect the actual stress condition of the connector 500, thereby improving the accuracy of the measured slip force data of the connector 500.

[0044] Reference Figures 1 to 4 The auxiliary testing fixture of this utility model embodiment includes a base 100, a locking structure 300, and a connecting structure 200. The locking structure 300 is installed on the base 100, which is suitable for stable placement under the pressure head of a press. The connecting structure 200 is configured to connect with the base 100 to fix the body panel sample 520 to the base 100, thereby simulating the fixed state of the body panel in the whole vehicle. The locking structure 300 is installed on the base 100 to fix the frame sample 510 to the body panel sample 520, thereby simulating the connection state of the frame and body panel in the whole vehicle. For example, both the frame sample 510 and the body panel sample 520 are provided with through holes. The connecting member 500 is set as a bolt, and the locking structure 300 is set as a threaded sleeve. The bolt passes through the through holes of the frame sample 510 and the body panel sample 520 and is threadedly connected to the locking structure 300, thereby realizing the relative fixation between the frame sample 510 and the body panel sample 520.

[0045] A worktable is typically provided below the press head of a press for placing the workpiece to be pressed. In this embodiment, the base 100 is suitable for placement on the worktable. For example, if the worktable is flat, the bottom of the base 100 is also flat to ensure stable placement on the worktable. After the base 100 is stable, the body panel sample 520 is fixed by the connecting structure 200, and the locking structure 300 is fixed by the connecting member 500. This ensures that when the press head applies pressure to the frame sample 510, the connecting member 500, the frame sample 510, and the body panel sample 520 remain stable, simulating the connection state of the frame and body panel connected by the connecting member 500, thereby improving the accuracy of the sliding force measurement of the connecting member 500. The auxiliary testing fixture in this embodiment has a simple structure and low manufacturing cost, significantly reducing the cost of testing the sliding force of the connecting member 500. Appropriate press equipment can be purchased based on actual needs; this embodiment does not impose any limitations.

[0046] Vehicles typically have various connecting parts 500, such as bolts or pins of different types. To accommodate testing of different connecting parts, in this embodiment of the invention, the auxiliary testing fixture includes multiple locking structures 300. These locking structures 300 are adapted to correspond one-to-one with various connecting parts 500. For example, if the connecting part 500 being tested is a bolt with a different outer diameter, threaded holes of different diameters can be provided on the locking structure 300 for connection with different bolts. This results in a simple structure, low cost, and good connection stability. If the connecting part 500 is a pin with a different outer diameter, fixing holes of different diameters can be provided on the locking structure 300, and adjustable clamping devices can be used to clamp the connecting part 500, thereby achieving connection between the locking structure 300 and different pins. By replacing the locking structure 300 to adapt to different connecting parts 500, the applicability of the auxiliary testing fixture in this embodiment can be further improved, and testing costs can be further reduced.

[0047] To facilitate the replacement of different locking structures 300, the locking structure 300 is detachably connected to the base 100. For example, the base 100 has a mounting hole 110, and the locking structure 300 passes through the mounting hole 110. The locking structure 300 can move axially into or out of the mounting hole 110. In some specific embodiments, the mounting hole 110 is along a first direction (e.g., Figure 1 , Figure 2 The thickness direction of the base 100 shown in the figure extends through the base 100. The axial length of the locking structure 300 is greater than the thickness of the base 100, so that at least one end of the locking structure 300 can extend out of the mounting hole 110, thereby facilitating the removal and placement of the locking structure 300.

[0048] It is conceivable that the size of the mounting hole 110 is fixed, so the external dimensions of the various locking structures 300 are also consistent, and the external dimensions of the various locking structures 300 all match the size of the mounting hole 110.

[0049] Typically, the connector 500 is a bolt, meaning the locking structure 300 is usually threadedly connected to the connector 500. To ensure a stable connection between the connector 500 and the locking structure 300, it is necessary to prevent the locking structure 300 from rotating around its own axis when the connector 500 is threadedly connected to the locking structure 300. Therefore, this invention also proposes a solution to prevent the locking structure 300 from rotating around its own axis, as follows:

[0050] In one embodiment of this utility model, the base 100 is provided with a mounting hole 110, and the locking structure 300 passes through the mounting hole 110. The mounting hole 110 can be understood with reference to the foregoing embodiments. In this embodiment, the inner sidewall of the mounting hole 110 is provided with a first limiting plane, and the outer sidewall of the locking structure 300 is provided with a second limiting plane. When the locking structure 300 passes through the mounting hole 110, the first limiting plane and the second limiting plane fit together, thereby restricting the locking structure 300 from rotating around its own axis.

[0051] Specifically, the inner wall of the mounting hole 110 includes an arc surface and a first limiting plane; correspondingly, the outer wall of the locking structure 300 includes an arc surface and a second limiting plane; the first limiting plane is configured as a protrusion or a recess, and correspondingly, the second limiting plane is configured as a recess or a protrusion; for example, when the locking structure 300 passes through the mounting hole 110, the protrusion of the inner wall of the mounting hole 110 fits against the recess of the outer peripheral wall of the locking structure 300, or the recess of the inner wall of the mounting hole 110 fits against the protrusion of the outer peripheral wall of the locking structure 300, that is, the first limiting plane fits against the second limiting plane, restricting the locking structure 300 from rotating around its own axis.

[0052] The inner wall of the mounting hole 110 may also be provided with multiple first limiting planes so that the cross-section of the mounting hole 110 is polygonal, and can be a standard polygon or a non-standard polygon; for example, the cross-sectional shape of the mounting hole 110 can be quadrilateral, pentagon, hexagon, etc.; the locking structure 300 is set to a shape corresponding to the mounting hole 110; for example, if the cross-section of the mounting hole 110 is quadrilateral, the locking structure 300 is set as a quadrangular prism; if the cross-section of the mounting hole 110 is hexagonal, the locking structure 300 is set as a hexagonal prism.

[0053] In another embodiment of the present invention, the base 100 is provided with a mounting hole 110, and the locking structure 300 passes through the mounting hole 110. The mounting hole 110 can be understood with reference to the foregoing embodiments.

[0054] In this embodiment, the base 100 is further provided with a locking hole 120, which communicates with the mounting hole 110, and the central axis of the locking hole 120 is perpendicular to the central axis of the mounting hole 110. That is, the locking hole 120 is located in the radial direction of the mounting hole 110, and the locking hole 120 communicates with the mounting hole 110 in the radial direction. A first limiting member 121 is installed in the locking hole 120, and the end of the first limiting member 121 extends into the mounting hole 110 to abut against the outer wall of the locking structure 300, thereby restricting the locking structure 300 from rotating around its own axis. Specifically, refer to... Figure 2 , Figure 4 As shown, the locking hole 120 is located above the mounting hole 110, facilitating the machining of the locking hole 120 and the installation of the first limiting member 121. The locking hole 120 can be a threaded hole, and the first limiting member 121 can be a bolt, thus facilitating machining and ensuring good connection stability between the first limiting member 121 and the locking hole 120. Since the first limiting member 121 abuts against the outer peripheral wall of the locking structure 300, the cross-section of the mounting hole 110 can be circular in this design, and correspondingly, the locking structure 300 can be cylindrical. The force exerted by the first limiting member 121 against the outer peripheral wall of the locking structure 300 can be set or adjusted according to actual conditions, and is not limited in this embodiment.

[0055] In another embodiment of the present invention, the base 100 is provided with a mounting hole 110, and the locking structure 300 passes through the mounting hole 110. The mounting hole 110 can be understood with reference to the foregoing embodiments.

[0056] In this embodiment, the inner wall of the mounting hole 110 is provided with a first slot 111, and the outer wall of the locking structure 300 is provided with a second slot 310. The second slot 310 cooperates with the first slot 111 to form a limiting hole. The auxiliary testing fixture also includes a second limiting member 320, which passes through the limiting hole to restrict the locking structure 300 from rotating around its own axis. Specifically, refer to... Figure 2 , Figure 3 As shown, both the first slot 111 and the second slot 310 are semi-circular. The first slot 111 and the second slot 310 are aligned to form a cylindrical limiting hole. The semi-circular first slot 111 and the second slot 310 are easy to process, thereby reducing processing costs. (Refer to...) Figure 3As shown, there are two first slots 111, which are symmetrically arranged. There are also two second slots 310 corresponding to the first slots 111. When the locking structure 300 is inserted into the mounting hole 110, the two second slots 310 correspond one-to-one with the two first slots 111. There are two second limiting members 320, which are respectively inserted into the limiting holes formed by the two first slots 111 and the two second slots 310. The two second limiting members 320 can serve as backups for each other, thereby more stably restricting the locking structure 300 from rotating around its own axis.

[0057] It is conceivable that the first card slot 111 and the second card slot 310 are not limited to semi-circular slots, but can also be arc-shaped slots, square slots, etc.; one or more of the first card slot 111 and the second card slot 310 can also be selected according to the actual situation.

[0058] In summary, the auxiliary testing fixture of this embodiment proposes three parallel technical solutions for limiting the rotation of the locking structure 300 around its own axis, namely:

[0059] Option 1: A first limiting plane is set on the inner side wall of the mounting hole 110, and a second limiting plane is set on the outer peripheral wall of the locking structure 300. The locking structure 300 is restricted from rotating around its own axis by the first limiting plane and the second limiting plane fitting together.

[0060] Option 2: The base 100 is equipped with a first limiting member 121. The first limiting member 121 abuts against the outer peripheral wall of the locking structure 300 along the radial direction of the locking structure 300 to restrict the locking structure 300 from rotating around its own axis.

[0061] Option 3: The mounting hole 110 is provided with a first slot 111, and the outer peripheral wall of the locking structure 300 is provided with a corresponding second slot 310. The first slot 111 and the second slot 310 are aligned to form a limiting hole. The locking structure 300 is restricted from rotating around its own axis by inserting a second limiting member 320 into the limiting hole.

[0062] In practical applications, you can choose any one or more of the three options mentioned above, depending on the specific circumstances.

[0063] A press head typically has a worktable below it for placing the workpiece to be pressed. In this embodiment, the base 100 should be able to rest stably on the worktable, and when the press head applies a tangential force to the connector 500 through the frame sample 510, the base 100 should remain stable to ensure the accuracy of the measured sliding force of the connector 500. Therefore, the base 100 in this embodiment includes a main body 101 and a first support 102. The first support 102 is connected to the main body 101 and is used to increase the stability of the main body 101. (Refer to...) Figure 1 , Figure 2 As shown, when the locking structure 300 is connected to the connector 500 to fix the frame sample 510 to the body panel sample 520, the frame sample 510 moves along the first direction (e.g., Figure 1 , Figure 2 The thickness direction of the main body 101 shown is located on the first side of the main body 101. The first support 102 is disposed on the first side of the main body 101 and extends along the first direction. That is, when the connector 500 is connected to the locking structure 300, the body panel sample 520 and the frame sample 510 are both located on the first side of the main body 101, and the body panel sample 520 and the frame sample 510 both protrude from the surface of the first side of the main body 101. The first support 102 also extends from the surface of the first side of the main body 101, thereby effectively preventing the main body 101 from tilting to the first side and improving the stability of the base 100 in the first direction when the press applies pressure to the frame sample 510.

[0064] In some specific embodiments, the first support part 102 may be a counterweight, a support plate or other structure; the first support part 102 is connected to the main body part 101 as an integral structure, thereby reducing the processing difficulty of the base 100 and reducing the manufacturing cost of the base 100.

[0065] To further enhance the stability of the base 100 and prevent it from interfering with the lifting and lowering of the press head, this embodiment provides two first support portions 102. The two first support portions 102 are respectively connected to the main body 101 along the second direction (e.g., ...). Figure 1 , Figure 2 At both ends of the main body 101 (in the longitudinal direction shown), the main body 101 and each of the first support portions 102 form an upper open accommodating space 104. The accommodating space 104 is used to place the connector 500, the frame sample 510, and the body panel sample 520. The second direction intersects the first direction. The two first support portions 102 connected to both ends of the main body 101 in the longitudinal direction can improve the stability of the base 100 in the second direction when the press applies pressure to the frame sample 510. At the same time, the upper open accommodating space 104 formed can also facilitate the press head of the press to apply pressure to the frame sample 510 without obstruction.

[0066] Reference Figure 1 , Figure 2 As shown, the base 100 also includes a second support portion 103, which is connected to the end of the first support portion 102 away from the main body portion 101, and the second support portion 103 is along a second direction (e.g., Figure 1 , Figure 2The main body 101 shown extends along its length. The second support 103 increases the contact area between the base 100 and the worktable of the press, thereby improving the anti-tilting ability of the base 100 and thus enhancing its stability. In some specific embodiments, refer to... Figure 1 , Figure 2 As shown, there is a gap between the second support portion 103 and the main body portion 101. The frame sample 510 and the body panel sample 520 are both located between the second support portion 103 and the main body portion 101. Therefore, when the press head of the press applies pressure to the frame sample 510, the pressure of the frame sample 510 can be more evenly distributed to the main body portion 101 and the second support portion 103, thereby improving the stability of the base 100 and thus improving the accuracy of the measured sliding force of the connector 500.

[0067] It is conceivable that, in order to facilitate the connection between the connector 500 and the locking structure 300, there is a gap between the two second support portions 103 along the second direction; in order to reduce the weight and processing cost of the base 100, the thickness of the first support portion 102 and the second support portion 103 can both be less than the thickness of the main body portion 101.

[0068] In embodiments of this utility model, the locking structure 300 has a threaded hole for threaded connection with a connector; and / or, the connecting structure 200 is configured as a threaded fastener, and is configured to connect with the base 100 to fix the body panel sample 520 to the base 100. Specifically, as can be seen from the above, the connector 500 is usually a bolt, that is, the locking structure 300 is usually threadedly connected to the connector 500; in order to reduce the difficulty of operation and the manufacturing cost of auxiliary testing fixtures, the connecting structure 200 in this embodiment is also usually configured as a connecting bolt and a connecting nut, the connecting bolt passing through the body panel sample 520 and the base 100 to connect with the connecting nut; both the body panel sample 520 and the base 100 are provided with through holes for the connecting bolt to pass through.

[0069] Furthermore, the body panel sample 520 needs to be installed on the base 100 in a predetermined posture to simulate the connection state of the frame and body panel connected by the connector 500. Therefore, multiple connection structures 200 can be provided, with the multiple connection structures 200 spaced apart around the outer periphery of the connector 500. To reduce installation difficulty, there are usually two connection structures 200, symmetrically arranged on opposite sides of the bolt assembly; however, the specific number of connection structures 200 can be selected according to the actual situation and is not limited in this embodiment.

[0070] In an embodiment of this utility model, the auxiliary testing fixture further includes a pressure block 400, which is used to connect with the pressure head of a press; the pressure block 400 has a groove 410 on the side facing the frame sample 510 that matches the frame sample 510. Specifically, refer to... Figure 1 , Figure 2 As shown, the size of the pressure block 400 is adjusted accordingly based on the size of the frame sample 510. For example, if the size of the frame sample 510 is large, the size of the pressure block 400 and the size of the groove 410 are increased accordingly. Setting the pressure block 400 can make the force on the frame sample 510 more uniform and more consistent with the actual force on the vehicle body, thereby improving the accuracy of the measured sliding force of the connecting part 500.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0072] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An auxiliary testing fixture for assisting a press in testing connectors, wherein the connectors are used to connect a frame sample and a body panel sample; characterized in that, include: Base; A connection structure is configured to connect to the base to fix the body panel sample to the base; A locking structure is mounted on the base and is configured to connect with the connector to fix the frame sample to the body panel sample. The base is adapted to be placed on the worktable of the press so that the press can apply a tangential force to the connector through the frame sample.

2. The auxiliary testing fixture according to claim 1, characterized in that: The locking structure is provided in a variety of ways, and different locking structures are suitable for connecting different types of connectors. One of the various locking structures can be selected and detachably installed on the base.

3. The auxiliary testing fixture according to claim 1, characterized in that: The base is provided with a mounting hole, and the locking structure passes through the mounting hole. The inner sidewall of the mounting hole is provided with a first limiting plane, and the outer sidewall of the locking structure is provided with a second limiting plane. The first limiting plane and the second limiting plane are in contact to restrict the locking structure from rotating around its own axis.

4. The auxiliary testing fixture according to claim 1, characterized in that: The base is provided with a mounting hole, the locking structure passes through the mounting hole, and the base is also provided with a locking hole, which communicates with the mounting hole in the radial direction along the mounting hole. The auxiliary testing fixture also includes a first limiting member, which is installed in the locking hole, and the end of the first limiting member abuts against the outer wall of the locking structure to restrict the locking structure from rotating around its own axis.

5. The auxiliary testing fixture according to claim 1, characterized in that: The base is provided with a mounting hole, the locking structure passes through the mounting hole, the inner sidewall of the mounting hole is provided with a first slot, the outer sidewall of the locking structure is provided with a second slot, and the second slot cooperates with the first slot to form a limiting hole; The auxiliary testing fixture also includes a second limiting member, which passes through the limiting hole to restrict the locking structure from rotating around its own axis.

6. The auxiliary testing fixture according to claim 1, characterized in that: The base includes a main body and a first support connected to the main body. The locking structure is installed on the main body, and the connecting structure is used to connect with the main body to fix the body panel sample to the main body. When the locking structure is connected to the connector to fix the frame sample to the body panel sample, the frame sample is located on the first side of the main body in the first direction, and the first support is disposed on the first side of the main body and extends in the first direction.

7. The auxiliary testing fixture according to claim 6, characterized in that: The first support portion is provided in two parts, and the two first support portions are respectively connected to the two ends of the main body portion along the second direction. The main body portion and each first support portion form an open accommodating space on the upper side. The accommodating space is used to place the connector, the frame sample and the body panel sample. The second direction intersects the first direction.

8. The auxiliary testing fixture according to claim 6, characterized in that: The base also includes a second support portion, which is connected to the end of the first support portion away from the main body portion, and the second support portion extends along a second direction, which intersects with the first direction.

9. The auxiliary testing fixture according to claim 1, characterized in that: The locking structure has a threaded hole for threaded connection with the connector. And / or, the connection structure is configured as a threaded fastener, and the connection structure is configured to connect with the base to fix the body panel sample to the base.

10. The auxiliary testing fixture according to claim 1, characterized in that: The auxiliary testing fixture also includes a pressure block, which is used to connect to the pressure head of the press. The pressure block has a groove on the side facing the frame sample that matches the frame sample.

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