Testing device

Abstract

The utility model relates to a testing device. The testing device is used for detecting the to-be-tested device. The testing device comprises a mounting base, a first adjusting assembly, a second adjusting assembly and a detection assembly. Wherein the first adjusting assembly comprises a first locking piece, and the first locking piece is in threaded connection with the mounting base and is used for adjusting first loading force applied to the device to be tested in the first direction; the second adjusting assembly comprises a second locking piece, the second locking piece is in threaded connection with the mounting base and is used for adjusting second loading force applied to the to-be-tested device in the second direction, and the second direction intersects with the first direction; the detection assembly is arranged on the mounting base and used for detecting displacement information of the device to be tested under different load resultant forces. The portability of the testing device can be improved, so that on-machine detection of the machine tool spindle can be realized, the operation performance and the cutting capacity of the spindle can be truly reflected, and the measurement accuracy is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of machine tool detection, and particularly relates to a testing device. BACKGROUND

[0002] The performance of a vertical machining center spindle has a direct impact on its stable operation, and is directly related to the overall work efficiency and stability. Traditional measurement methods often require the spindle to be disassembled and installed on a measurement device, which is not only cumbersome to operate, but also may introduce additional errors. Therefore, a method capable of measuring the spindle in an actual working state is particularly important. CONTENT OF THE UTILITY MODEL

[0003] The application provides a testing device to solve the technical problem of in-machine detection of the testing device.

[0004] To solve the above technical problem, one technical solution adopted by the application is: a testing device for detecting a testing device, comprising: a mounting base; a first adjusting assembly comprising a first locking member, the first locking member being threadedly connected with the mounting base, for adjusting a first load force in a first direction applied to the testing device; a second adjusting assembly comprising a second locking member, the second locking member being threadedly connected with the mounting base, for adjusting a second load force in a second direction applied to the testing device, wherein the second direction intersects the first direction; a detection assembly arranged on the mounting base, for detecting displacement information of the testing device under different load resultant forces.

[0005] According to an embodiment of the application, the detection assembly comprises a single-ball detection rod, which is inserted into the testing device along the axis of the testing device.

[0006] According to an embodiment of the application, the mounting base comprises: a main base plate extending along the second direction; and a side base plate connected with the main base plate and extending along the first direction. The first locking member is arranged on the main base plate, and the second locking member is arranged on the side base plate.

[0007] According to an embodiment of the application, the first adjusting assembly comprises at least two groups of first locking members, and at least two first locking members are uniformly arranged around the outer periphery of the single-ball detection rod. The first locking member comprises: a first support rod, one end of which abuts against the testing device and the other end of which is inserted into the main base plate; and a first adjusting screw, which is threadedly connected with the main base plate and rotationally connected with the first support rod. The first adjusting screw can be used to adjust the first load force.

[0008] According to an embodiment of the present application, the second locking member comprises: a second supporting rod, one end of which is in abutment with the device to be tested, and the other end of which is inserted into the side base plate; and a second adjusting screw, which is inserted into the side base plate and is in rotational connection with the second supporting rod; wherein the second adjusting screw is used to adjust the second load force.

[0009] According to an embodiment of the present application, the first locking member further comprises: a first sensor, which is arranged on the first supporting rod; wherein the first sensor is used to sense the size of the first load force.

[0010] According to an embodiment of the present application, the second locking member further comprises: a second sensor, which is arranged on the second supporting rod; wherein the second sensor is used to sense the size of the second load force.

[0011] According to an embodiment of the present application, the detection assembly further comprises: a first mounting seat, which extends along the second direction; a second mounting seat, which extends along the first direction; a third sensor, which is arranged on the side of the first mounting seat away from the single-ball detection rod, and is used to detect the displacement information of the single-ball detection rod in the first direction; and a fourth sensor, which is arranged on the side of the second mounting seat away from the single-ball detection rod, and is used to detect the displacement information of the single-ball detection rod in the second direction.

[0012] According to an embodiment of the present application, the device to be tested comprises a main shaft, which comprises a main shaft body, a tool shank and a chuck nut, the tool shank is inserted into the main shaft body, and the chuck nut is clamped on the end portion of the tool shank away from the main shaft body; the testing device further comprises: a loading block, which is sleeved on the outer periphery of the tool shank, and the first locking member and the second locking member are both connected to the loading block; an outer side wall of the loading block is provided with a positioning hole which is not penetrated through, and the second locking member is inserted into the positioning hole.

[0013] According to an embodiment of the present application, the testing device further comprises a plurality of bearings, which are arranged at intervals between the loading block and the tool shank; and the testing device further comprises a pressing ring, which is arranged on the outer periphery of the tool shank and is in abutment with the loading block.

[0014] The beneficial effects of the present application are: the test device of the present application is used for detecting the to-be-tested device. The test device comprises a mounting base, a first adjusting assembly, a second adjusting assembly and a detection assembly. The first adjusting assembly comprises a first locking piece which is threadedly connected with the mounting base and is used for adjusting a first load force in a first direction applied to the to-be-tested device. The second adjusting assembly comprises a second locking piece which is threadedly connected with the mounting base and is used for adjusting a second load force in a second direction applied to the to-be-tested device, wherein the second direction intersects the first direction. The detection assembly is arranged on the mounting base and is used for detecting displacement information of the to-be-tested device under different load resultant forces. In the present application, the first locking assembly and the second locking assembly are used to simulate the load force of the machine tool spindle. Compared with the prior art which uses the driving force of the driving structure to simulate the load force, the first locking assembly and the second locking assembly in the present application have the advantages of convenient operation and lightweight, and can realize the miniaturization and lightweight of the test device, thereby improving the portability of the test device, and realizing the in-machine detection of the machine tool spindle, so as to effectively reduce the generation of detection errors, and truly reflect the running performance and cutting ability of the spindle, so as to improve the measurement accuracy, and further ensure the reliability and stability of the test device. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a perspective structural schematic diagram of an embodiment of the test device of the present application;

[0017] Figure 2 is a partial enlarged structural schematic diagram of an embodiment of the test device of the present application;

[0018] Figure 3 is a partial cross-sectional structural schematic diagram of an embodiment of the test device of the present application;

[0019] Figure 4 is a cross-sectional structural schematic diagram of an embodiment of the to-be-tested device of the present application. DETAILED DESCRIPTION

[0020] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings, but not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is explicitly and implicitly understood that the embodiments described herein can be combined with other embodiments.

[0022] In the description of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0023] In the description of the present application, it should be noted that, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] The test device of the present application can be used in the fields of mechanical manufacturing, automobile, aerospace, etc. for detecting the displacement change of related structures. The test device of the present application is mainly described by taking the application in the field of mechanical manufacturing as an example, especially in the field of machine tool.

[0025] Please refer to Figures 1 to 2 , Figure 1 is a perspective structural schematic diagram of an embodiment of the test device of the present application; Figure 2 is a partial enlarged structural schematic diagram of an embodiment of the test device of the present application.

[0026] In one aspect of the present application, a testing device 10 is provided. The testing device 10 is used for detecting a device to be tested 20. The testing device 10 comprises a mounting base 14, a first adjusting assembly 11, a second adjusting assembly 12 and a detecting assembly 13. The first adjusting assembly 11 comprises a first locking member 113 threadedly connected with the mounting base 14, for adjusting a first load force applied to the device to be tested 20 along a first direction X; the second adjusting assembly 12 comprises a second locking member 123 threadedly connected with the mounting base 14, for adjusting a second load force applied to the device to be tested 20 along a second direction Y, wherein the second direction Y intersects the first direction X; and the detecting assembly 13 is arranged on the mounting base 14, for detecting displacement information of the device to be tested 20 under different load forces.

[0027] The device to be tested 20 is a machine tool spindle 21. Since the machine tool spindle 21 is often subjected to cutting force and frictional force of a tool in actual work, and the spindle 21 also generates a certain load during rotation, the machine tool spindle 21 is subjected to load forces of different degrees in actual work.

[0028] In the present application, in order to realize in-machine detection of the machine tool spindle 21, the first locking member 113 is threadedly connected with the mounting base 14, so as to adjust the first load force applied to the device to be tested 20 along the first direction X, and the second locking member 123 is threadedly connected with the mounting base 14, so as to adjust the second load force applied to the device to be tested 20 along the second direction Y. Thus, the first load force and the second load force can be applied and adjusted to simulate different sizes and directions of load forces generated by the machine tool spindle 21 when cutting different molds. The detecting assembly 13 can generate different displacement information under different load forces, and the running performance and cutting capacity of the spindle 21 can be obtained through the displacement information. Therefore, compared with the prior art which uses driving force of a driving structure to simulate load force, the first adjusting assembly 11 and the second adjusting assembly 12 have the advantages of convenient operation and light weight. The size and weight of the testing device 10 can be reduced to realize miniaturization and light weight of the testing device 10, so as to improve the portability of the testing device 10, and in-machine detection of the machine tool spindle 21 can be realized. Thus, detection errors can be effectively reduced, so as to truly reflect the running performance and cutting capacity of the spindle 21, improve the accuracy of measurement, and ensure the reliability and stability of the testing device 10.

[0029] The performance of the spindle 21 includes key parameters such as thermal elongation, thermal deviation, working stiffness and static stiffness.

[0030] Preferably, the first direction X and the second direction Y are perpendicular.

[0031] In some embodiments of the present application, the detection assembly 13 comprises a single-ball detection rod 121, which is inserted into the device to be tested 20 along the axis of the device to be tested 20. In the present application, the single-ball detection rod 121 is used to detect displacement information. Compared with the prior art, which uses a double-ball detection rod to detect displacement information, the single-ball detection rod 121 has a small volume, a small weight, and a simple structure. Therefore, the volume and weight of the testing device 10 can be reduced, and the testing device 10 can be miniaturized and lightened, thereby improving the portability of the testing device 10, and further achieving in-situ detection of the machine tool spindle 21.

[0032] In some embodiments of the present application, the mounting base 14 comprises a main base plate 141 and a side base plate 142. The main base plate 141 extends along the second direction Y; the side base plate 142 is connected to the main base plate 141, and the side base plate 142 extends along the first direction X. The first locking member 113 is arranged on the main base plate 141, and the second locking member 123 is arranged on the side base plate 142. The arrangement of the main base plate 141 and the side base plate 142 can provide installation space for the first locking member 113 and the second locking member 123, facilitate the user to apply and adjust the first load force and the second load force, and make the force application process of the first locking member 113 and the second locking member 123 more stable, thereby improving the stability and reliability of the testing device 10.

[0033] In some embodiments of the present application, the first adjusting assembly 11 comprises at least two groups of first locking members 113, and the at least two first locking members 113 are uniformly arranged around the outer periphery of the single-ball detection rod 121. The above arrangement can make the first load force applied to the spindle 21 more uniform, thereby making the displacement information of the single-ball detection rod 121 in the first direction X more accurate, and further obtaining the running ability and cutting ability of the spindle 21 more accurately. In addition, the at least two first locking members 113 can also prevent the spindle 21 from deviating during normal rotation, so that the spindle 21 can maintain accurate position during work, thereby improving the reliability and stability of the spindle 21 during rotation.

[0034] Of course, in some other embodiments, the first adjusting assembly 11 can also comprise three groups of first locking members 113, or more groups of first locking members 113, and the three groups or more groups of first locking members 113 are uniformly distributed around the axis of the device to be tested 20, which is not limited herein.

[0035] Please refer to Figures 1 to 2 , refer to Figure 3 ,Figure 3 is a partial cross-sectional structural schematic diagram of an embodiment of the test device of the present application.

[0036] Further, the first locking member 113 comprises a first supporting rod 115 and a first adjusting screw 116. One end of the first supporting rod 115 is in abutment with the device to be tested 20, and the other end is inserted into the main base plate 141; the first adjusting screw 116 is threadedly connected to the main base plate 141, and is in rotational connection with the first supporting rod 115; wherein the first adjusting screw 116 is used to adjust the first load force. First, since the present application aims to realize in-situ detection of the main shaft 21, the main shaft 21 is kept rotating during the measurement process, and the first supporting rod 115 is connected between the first adjusting screw 116 and the main shaft 21, so that the first supporting rod 115 can transmit the first load force exerted by the first adjusting screw 116 to the main shaft 21, thereby avoiding the abrasion of the main shaft 21 due to excessive friction between the rotating main shaft 21 and the first adjusting screw 116 when adjusting the first load force of the first adjusting screw 116, and further ensuring the reliability of the test device 10. Second, the provision of the first supporting rod 115 can also increase the connection stiffness between the first adjusting screw 116 and the main shaft 21, thereby maintaining the stability of the connection. On the other hand, the provision of the first supporting rod 115 also helps to accurately control the gap between the first adjusting screw 116 and the main shaft 21, thereby eliminating the problem of looseness caused by excessive gap, and further improving the reliability during the application of the first load force.

[0037] In some embodiments, a slot hole can be formed at the end of the first adjusting screw 116 in abutment with the first supporting rod 115, so as to insert the first supporting rod 115 into the slot hole to realize rotational connection with the first adjusting screw 116. Alternatively, a slot hole can also be formed at the end of the first supporting rod 115 in abutment with the first adjusting screw 116, so as to insert the first adjusting screw 116 into the slot hole to realize rotational connection with the first supporting rod 115, which is not limited here.

[0038] In some embodiments of the present application, the second locking member 123 comprises a second support rod 125 and a second adjusting screw 126. The second support rod 125 is in abutment with the device to be tested 20 at one end and is inserted into the side base plate 142 at the other end. The second adjusting screw 126 is inserted into the side base plate 142 and is in rotational connection with the second support rod 125. The second adjusting screw 126 can be used to adjust the second load force. The provision of the second support rod 125 can transmit the second load force exerted by the second adjusting screw 126 to the main shaft 21, thereby avoiding the direct action of the second adjusting screw 126 on the main shaft 21, and thus avoiding the excessive friction between the main shaft 21 and the second adjusting screw 126 when adjusting the second load force of the second adjusting screw 126, which can cause wear of the main shaft 21, thereby ensuring the reliability of the testing device 10. In addition, the provision of the second support rod 125 can also increase the connection stiffness between the second adjusting screw 126 and the main shaft 21, thereby maintaining the stability of the connection. On the other hand, the provision of the second support rod 125 can also help to reduce the gap between the second adjusting screw 126 and the main shaft 21, thereby avoiding the problem of looseness caused by excessive gap, and thus improving the reliability during the application of the second load force.

[0039] In some embodiments, a slot hole can be formed at the end of the second adjusting screw 126 in abutment with the second support rod 125, so as to insert the second support rod 125 into the slot hole to achieve rotational connection with the second adjusting screw 126. Alternatively, a slot hole can also be formed at the end of the second support rod 125 in abutment with the second adjusting screw 126, so as to insert the second adjusting screw 126 into the slot hole to achieve rotational connection with the second support rod 125, which is not limited here.

[0040] Please continue to refer to Figure 1 and Figure 2 In some embodiments of the present application, in order to improve the accuracy of the application of the first load force, the first locking member 113 further comprises a first sensor 114, which is arranged on the first support rod 115. The first sensor 114 is used to sense the size of the first load force. By arranging the first sensor 114, the first sensor 114 can directly perceive and measure the size of the first load force, thereby reducing human error and external interference, and thus improving the accuracy and reliability of the measurement. In addition, the arrangement of the first sensor 114 can also realize real-time monitoring, so as to respond to the change of the first load force in time, thereby adjusting the size of the first load force in time according to the user's demand, and thus improving the reliability of the testing device 10.

[0041] In some embodiments of the present application, the second locking member 123 further comprises a second sensor 124, and the second sensor 124 is arranged on the second supporting rod 125; wherein the second sensor 124 is configured to sense the size of the second load force. By arranging the second sensor 124, the second sensor 124 can directly perceive and measure the size of the second load force, thereby reducing human error and external interference, and further improving the accuracy and reliability of the measurement. Moreover, the arrangement of the second sensor 124 can also realize real-time monitoring, so as to timely respond to the change of the second load force, thereby timely adjusting the size of the second load force according to the user's demand, and further improving the reliability of the testing device 10.

[0042] In some embodiments of the present application, the detection assembly 13 further comprises a first mounting seat 1111, a second mounting seat 1112, a third sensor 132 and a fourth sensor 133. The first mounting seat 1111 extends along the second direction Y; the second mounting seat 1112 extends along the first direction X; the third sensor 132 is arranged on the side of the first mounting seat 1111 away from the single-ball detection rod 121, and is configured to detect the displacement information of the single-ball detection rod 121 in the first direction X; and the fourth sensor 133 is arranged on the side of the second mounting seat 1112 away from the single-ball detection rod 121, and is configured to detect the displacement information of the single-ball detection rod 121 in the second direction Y. In the present application, the arrangement of the first mounting seat 1111 and the second mounting seat 1112 can provide a certain installation space for the third sensor 132 and the fourth sensor 133, thereby facilitating the installation of the third sensor 132 and the fourth sensor 133. Moreover, the third sensor 132 can directly perceive and measure the displacement information of the single-ball detection rod 121 in the first direction X, and compared with directly observing the displacement information of the single-ball detection rod 121 by naked eyes, the arrangement of the third sensor 132 can reduce human error and external interference, thereby improving the accuracy of the measurement. Furthermore, the fourth sensor 133 can directly perceive and measure the displacement information of the single-ball detection rod 121 in the second direction Y, and compared with directly observing the displacement information of the single-ball detection rod 121 by naked eyes, the arrangement of the fourth sensor 133 can reduce human error and external interference, thereby improving the accuracy of the measurement.

[0043] In some embodiments of the present application, the third sensor 132 and the fourth sensor 133 are both high-precision eddy current sensors. By using high-precision eddy current sensors, on the one hand, they can accurately measure the displacement information of the single-ball detection rod 121 in any state by using the principle of eddy current effect; on the other hand, the high-precision eddy current sensors have high sensitivity and high resolution, so that the detection results are more accurate. In addition, the high-precision eddy current sensors can detect the displacement information of the single-ball detection rod 121 in a non-contact measurement manner, thereby avoiding the problems of wear caused by contact, and further improving the stability and reliability of the measurement.

[0044] Wherein, the third sensor 132 and the fourth sensor 133 can directly transmit the displacement information detected by the single ball detection rod 121 to the computer and other devices through wired transmission after detecting the displacement information of the single ball detection rod 121, so that the computer device can convert the displacement information into data capable of displaying the performance of the main shaft 21, to facilitate the user to directly observe the performance of the main shaft 21. Alternatively, the chip in the third sensor 132 and the fourth sensor 133 can also be removed and inserted into the computer device after detection, and then the computer device converts the displacement information stored in the chip into data capable of displaying the performance of the main shaft 21, so that the user can conveniently observe the performance of the main shaft 21.

[0045] Please refer to Figures 1 to 2 , refer to Figure 4 , Figure 4 is a cross-sectional structure schematic diagram of an embodiment of the device to be tested of the present application. In some embodiments of the present application, the device to be tested 20 comprises a main shaft 21, the main shaft 21 comprises a main shaft body 22, a tool holder 23 and a chuck nut 24, the tool holder 23 is inserted into the main shaft body 22, and the chuck nut 24 is clamped at the end of the tool holder 23 away from the main shaft body 22. Wherein, the tool holder 23 can be used to realize the connection between the main shaft body 22 and the single ball detection rod 121, so that the connection between the single ball detection rod 121 and the main shaft body 22 is more stable, to improve the reliability of the main shaft 21 and the testing device 10. And the chuck nut 24 is clamped at the end of the tool holder 23 away from the main shaft body 22, so that the chuck nut 24 can clamp the tool holder 23 and the single ball detection rod 121, to ensure the precision and quality of machining.

[0046] Secondly, the testing device 10 also comprises a loading block 135, the loading block 135 is sleeved on the outer periphery of the tool holder 23, and the first locking member 113 and the second locking member are both connected to the loading block 135. In the present application, through the setting of the loading block 135, the loading block 135 can transmit the first load and the second load to the main shaft 21, so as to simulate the load generated by the machine tool main shaft 21 when cutting different molds. Through the loading block 135 to realize the transmission of the load, on the one hand, the first locking member 113 and the second locking member 123 can avoid direct contact with the main shaft body 22, so as to avoid the abrasion caused by the friction between the main shaft body 22 and the first locking member 113 and the second locking member 123 due to rotation, which affects the performance of the main shaft 21. On the other hand, the setting of the loading block 135 can also play a good supporting and stabilizing role in the process of load transmission, so as to effectively improve the accuracy and stability of the testing device 10.

[0047] In addition, the outer side wall of the loading block 135 is provided with a positioning hole 137 which is not penetrated, and the second locking member 123 is inserted into the positioning hole 137. By providing the positioning hole 137, the worker can be assisted to install the second locking member 123, thereby improving the installation efficiency of the worker.

[0048] In some embodiments of the present application, the testing device 10 further comprises a plurality of bearings 136 which are arranged at intervals between the loading block 135 and the tool shank 23. In the present application, by arranging the bearings 136 between the loading block 135 and the tool shank 23, on the one hand, the arrangement of the bearings 136 can change the sliding friction between the loading block 135 and the tool shank 23 into rolling friction, thereby effectively reducing the friction between the loading block 135 and the tool shank 23, reducing the wear of the tool shank 23 and the loading block 135 during the rotation of the main shaft body 22, thereby improving the service life of the main shaft 21. On the other hand, the arrangement of the bearings 136 can also make the loading block 135 relative to the testing device 10 stationary, thereby avoiding the loading block 135 rotating together with the main shaft body 22, and further facilitating the testing of the testing device 10, improving the efficiency of the testing process and the accuracy of the test results. In addition, the arrangement of the bearings 136 can also limit the radial and axial deviation of the main shaft body 22 during operation, thereby improving the operation performance and cutting ability of the main shaft 21.

[0049] Among them, a through hole can be opened on the side of the loading block 135 in contact with the tool shank 23, and the bearing 136 is arranged in the through hole, thereby avoiding the bearing 136 from being detached during the operation of the main shaft 21, thereby improving the reliability of the main shaft 21.

[0050] Among them, the bearing 136 can be an angular contact bearing which can always rotate stably with the rotation of the main shaft body 22 while bearing loads in various directions, or it can also be other types of bearings, which will not be described one by one here.

[0051] In addition, the testing device 10 further comprises a press ring 17 which is arranged on the outer periphery of the tool shank 23 and abuts against the loading block 135. The arrangement of the press ring 17 can indirectly fix the bearing 136 by fixing the loading block 135, so as to avoid the bearing 136 from being detached during the operation of the main shaft 21, thereby improving the reliability of the main shaft 21.

[0052] In some embodiments, the testing device 10 further comprises a ground iron 16, on which the mounting base 14 is arranged. The ground iron 16 can stably support the remaining structural components of the testing device 10, so as to ensure the stability of the testing device 10 during the detection process. In addition, the ground iron 16 can serve as a reference plane, so as to simplify the positioning and alignment steps in the processing process, thereby improving the processing efficiency. Furthermore, the stability and precision of the ground iron 16 can help to reduce the errors generated during the detection process, thereby improving the accuracy of the detection.

[0053] It should be noted that the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined; the terms "parallel", "perpendicular", and the like also do not mean that the fittings must be absolutely parallel or perpendicular, but can form a certain angular deviation. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0054] It should be understood that the meaning of "a plurality of" herein is at least two, such as two, three, etc., unless specifically limited. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product, or apparatus. The term "and / or", only describes the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0055] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made according to the content of the present application and the accompanying drawings, is also included in the patent protection scope of the present application.

Claims

1. A testing device for testing a device under test, characterized in that The utility model relates to a testing device for testing the axial rigidity of a tool, comprising: a mounting base; a first adjusting assembly comprising a first locking member threadedly connected to the mounting base for adjusting a first load force applied to the tool in a first direction; a second adjusting assembly comprising a second locking member threadedly connected to the mounting base for adjusting a second load force applied to the tool in a second direction, wherein the second direction intersects the first direction; a detecting assembly arranged on the mounting base for detecting displacement information of the tool under different load forces.

2. The test device of claim 1, wherein, The detecting assembly comprises a single-ball detecting rod inserted into the tool along an axis of the tool.

3. The test device of claim 2, wherein, The mounting base comprises: a main base plate extending in the second direction; a side base plate connected to the main base plate and extending in the first direction; wherein the first locking member is arranged on the main base plate, and the second locking member is arranged on the side base plate.

4. The test device of claim 3, wherein, The first adjusting assembly comprises at least two sets of first locking members uniformly arranged around an outer periphery of the single-ball detecting rod, wherein each first locking member comprises: a first support rod abutting against one end of the tool and inserted into the main base plate at the other end; a first adjusting screw threadedly connected to the main base plate and rotationally connected to the first support rod; wherein the first adjusting screw is used for adjusting the first load force.

5. The test device of claim 3, wherein, The second locking member comprises: a second support rod abutting against one end of the tool and inserted into the side base plate at the other end; a second adjusting screw inserted into the side base plate and rotationally connected to the second support rod; wherein the second adjusting screw is used for adjusting the second load force.

6. The test device of claim 4, wherein, The first locking member further comprises: a first sensor arranged on the first support rod; wherein the first sensor is used for sensing the magnitude of the first load force.

7. The test device of claim 5, wherein, The second locking member further comprises: a second sensor arranged on the second support rod; wherein the second sensor is used for sensing the magnitude of the second load force.

8. The test device of claim 2, wherein, The detecting assembly further comprises: a first mounting seat extending in the second direction; a second mounting seat extending in the first direction; a third sensor arranged on a side of the first mounting seat away from the single-ball detecting rod for detecting displacement information of the single-ball detecting rod in the first direction; a fourth sensor arranged on a side of the second mounting seat away from the single-ball detecting rod for detecting displacement information of the single-ball detecting rod in the second direction.

9. The test device of claim 1, wherein, The tool comprises a main shaft, the main shaft comprises a main shaft body, a tool holder and a chuck nut, the tool holder is inserted into the main shaft body, and the chuck nut is clamped at an end of the tool holder away from the main shaft body; the testing device further comprises: a loading block sleeved around an outer periphery of the tool holder, the first locking member and the second locking member are connected to the loading block; an outer side wall of the loading block is provided with a positioning hole not penetrating through, and the second locking member is inserted into the positioning hole.

10. The test device of claim 9, wherein, The test device further comprises a plurality of bearings, the plurality of bearings are arranged at intervals between the loading block and the tool shank. The test device further comprises a press ring, the press ring is arranged on the outer periphery of the tool shank and abuts against the loading block.

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