Detection device and detection method

Abstract

The detection device and the detection method are used for performance detection of a stator assembly, the stator assembly is provided with a terminal part, the detection device comprises a positioning mechanism, a conduction mechanism and a power mechanism, the positioning mechanism comprises a positioning seat, and the power mechanism drives the conduction mechanism to move in the direction close to or away from the positioning seat. The direction, close to the positioning seat, of the conduction mechanism is a first direction, the conduction mechanism comprises a conduction component, the power mechanism drives the conduction component to stretch out or retract, the conduction component and the terminal part are in butt joint connection or disconnection in the axial direction, the stretching direction of the conduction component is a second direction, and an included angle is formed between the first direction and the second direction. According to the invention, the conduction process of the conduction part and the terminal part is divided into two movements in different directions, and the movement space required in each direction is reduced, so that the overall installation space of the device is reduced, and the requirements of installation spaces with different sizes are met.

Description

Technical Field

[0001] The present invention relates to the technical field of test tooling, and particularly relates to a detection device and a detection method. Background Art

[0002] Generally, a stator assembly test tooling uses a pneumatic gripper to hold a probe, and drives the pneumatic gripper through a driving component to insert the end of the probe into the detection terminal of the stator assembly for testing. This requires sufficient installation space to be reserved between the driving component and the stator assembly. If the installation space is small, it will increase the assembly difficulty of the probe and easily bring the risk of damage to the probe. If the installation space is too large, it will cause the test tooling to occupy a large space, and the driving component has a long movement stroke, which will correspondingly increase the difficulty of maintaining the coaxiality of the probe relative to the tooling. Summary of the Invention

[0003] The purpose of the present invention is to provide a detection device that can effectively reduce the probability of collision damage to the detection terminal, and the overall volume of the detection device is small.

[0004] To solve the above technical problems, the present invention provides a detection device for detecting the performance of a stator assembly, and the stator assembly has a terminal portion.

[0005] The detection device includes a positioning mechanism, a conduction mechanism, and a power mechanism. The positioning mechanism includes a positioning seat. The power mechanism drives the conduction mechanism to move in a direction close to or away from the positioning seat. The direction in which the conduction mechanism approaches the positioning seat is the first direction.

[0006] The conduction mechanism includes a conduction component. The power mechanism also drives the conduction component to extend or retract, so that the conduction component and the terminal portion are axially butted and conducted or disconnected. The direction in which the conduction component extends is along the second direction, and an included angle is set between the first direction and the second direction. The present invention also provides a detection method based on the foregoing detection device, including the following steps:

[0007] The stator assembly is positioned and installed on the positioning seat;

[0008] The conduction mechanism moves in the first direction until the conduction mechanism is in a preset detection position;

[0009] The conduction component extends in the second direction until the conduction component and the terminal portion of the stator assembly are axially butted and conducted.

[0010] The detection device of the present invention divides the conduction process between the conduction component and the terminal part into two stages of movement. In the first stage, the conduction component moves up and down along the first direction. At this time, the conduction component is in a retracted state in the second direction, that is, there is a distance between the conduction component and the terminal part along the second direction, so as to avoid collision damage between the conduction component and the terminal part during the up and down movement. In the second stage, the conduction component moves along the second direction to achieve axial docking conduction with the terminal part. The movements in the two stages are along different directions and do not interfere with each other. The movement space required for each direction is reduced, so that the overall installation space of the device is reduced, meeting the requirements of installation spaces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of a specific embodiment of the detection device provided by the present invention;

[0012] Figure 2 It is Figure 1 a schematic structural diagram of the detection device from a second angle;

[0013] Figure 3 It is Figure 1 a schematic structural diagram of the detection device from a third angle;

[0014] Figure 4 It is Figure 1 a schematic structural diagram of the conduction mechanism in the detection device;

[0015] Figure 5 It is Figure 4 a schematic structural diagram of the conduction mechanism from a second angle;

[0016] Figure 6 It is Figure 4 a schematic structural diagram of the conduction mechanism from a third angle;

[0017] Figure 7 It is Figure 4 a schematic structural diagram of the conduction mechanism from a fourth angle;

[0018] Figure 8 It is Figure 4 a split view of the conduction mechanism;

[0019] Figure 9 It is Figure 4 a sectional view of the conduction mechanism;

[0020] Figure 10 It is Figure 1 a position diagram of the conduction mechanism and the alignment component in the detection device;

[0021] Figure 11 It is Figure 10 a schematic structural diagram from a second angle;

[0022] Figure 12 is Figure 10 Schematic diagram of the structure from the third angle;

[0023] Figure 13 is Figure 10 Schematic diagram of the structure from the fourth angle;

[0024] Figure 14 is Figure 1 Schematic diagram of the structure of the alignment component in the detection device;

[0025] Figure 15 is Figure 14 Schematic diagram of the structure of the alignment component from the second angle;

[0026] Among them, Figures 1 - 15 the description of the reference numerals in the drawings is as follows:

[0027] 1 - positioning mechanism; 11 - positioning seat; 11a - first positioning notch; 12 - alignment component; 12a - second positioning notch; 13 - axial limiting block; 14 - blocking block;

[0028] 2 - conduction mechanism; 21 - conduction component; 22 - conduction punch; 22a - limiting step; 23 - moving block; 23a - receiving groove; A - inclined guiding surface; 24 - elastic component; 25 - fixing block; 25a - first guiding part; 25b - second guiding part; 251 - fixing block body; 251a - guiding groove; 252 - cover plate; 26 - insulating connection block; 27 - second fixing part;

[0029] 31 - first power component; 32 - second power component;

[0030] 4 - first fixing part; 41 - first plate part; 42 - second plate part; 43 - connecting rod;

[0031] 51 - base; 52 - fixing plate; 52a - through hole; 53 - guiding column. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0033] As used herein, "a plurality" generally means more than two; and when "a plurality" is used to represent the quantity of several components, it does not represent the mutual relationship in quantity of these components.

[0034] Please refer to Figures 1 - 4 , Figure 1 which is a schematic diagram of the structure of a specific embodiment of the detection device provided by the present invention; Figure 2 is Figure 1 Schematic diagram of the structure of the detection device from the second angle;Figure 3 for Figure 1 A schematic diagram of the structure of the detection device from a third angle; Figure 4 for Figure 1 Schematic diagram of the structure of the conduction mechanism in the detection device.

[0035] The present invention provides a detection device for performance detection of a stator assembly, wherein the stator assembly has a terminal portion, and the detection device comprises a positioning mechanism 1, a conduction mechanism 2 and a power mechanism, wherein the positioning mechanism 1 comprises a positioning seat 11, and the positioning seat 11 is used for positioning and installing the stator assembly, and the power mechanism comprises a first power component 31 and a second power component 32, wherein the first power component 31 is connected to the conduction mechanism 2, and the first power component 31 is used for driving the conduction mechanism 2 to move in a direction close to or away from the positioning seat 11, and the direction in which the conduction mechanism 2 approaches the positioning seat 11 is a first direction, and the first direction is also a vertical direction;

[0036] The conducting mechanism 2 includes a conducting component 21, a second power component 32 and the conducting component 21 in transmission connection, the second power component 32 is used to drive the conducting component to extend or retract, so that the conducting component 21 and the terminal part are connected or disconnected along the axial direction, the direction in which the conducting component 21 extends is the second direction, and the first direction and the second direction are arranged at an angle.

[0037] The working process of the detection device of the present invention is as follows:

[0038] In the initial state, the conducting mechanism 2 is far away from the positioning seat 11, and there is sufficient installation space between the conducting mechanism 2 and the positioning seat 11, which is convenient for positioning and installing the stator assembly on the positioning seat 11, and avoids collision damage to the terminal part caused by other structures in the tooling during the installation of the stator assembly. The positioning mechanism 1 can realize the precise positioning of the stator assembly, ensuring that the subsequent terminal part and the conducting component 21 can be accurately connected and conducted;

[0039] During operation, the first power component 31 first drives the conducting mechanism 2 to gradually approach the positioning seat 11 until the conducting mechanism 2 is in a preset detection position. At this time, the conducting component 21 is axially opposite to the terminal part; then, the second power component 32 drives the conducting component 21 to extend along the second direction, that is, the conducting component 21 moves toward the direction close to the terminal part until the conducting component 21 is axially connected with the terminal part for conduction.

[0040] It can be seen that the detection device of the present invention divides the conduction process between the conductive component 21 and the terminal part into two stages of movement. In the first stage, the conductive component 21 performs a lifting movement along the first direction. At this time, the conductive component 21 is in a retracted state, that is, there is a distance between the conductive component 21 and the terminal part, so as to avoid collision damage between the conductive component 21 and the terminal part during the lifting process; in the second stage, the conductive component 21 moves along the second direction to achieve axial docking and conduction with the terminal part. The two stages of movement are along different directions and do not interfere with each other. The movement space required in each direction is reduced, so that the overall installation space of the device is reduced to meet the needs of installation spaces of different sizes.

[0041] It can be understood that the detection device of the present invention is suitable for conducting a continuity test on all electronic products including a positioning component, such as an electronic oil pump and the like.

[0042] Please refer to Figures 4 - 9 , Figure 5 for Figure 4 A schematic diagram of the structure of the conduction mechanism from a second angle; Figure 6 for Figure 4 A schematic diagram of the structure of the conduction mechanism from the third angle; Figure 7 for Figure 4 A schematic diagram of the structure of the conduction mechanism from the fourth angle; Figure 8 for Figure 4 Schematic diagram of the conduction mechanism; Figure 9 for Figure 4 Cross-sectional view of the conduction mechanism.

[0043] As mentioned above, the second power component 32 is transmission-connected to the conducting component 21. Specifically, the conducting mechanism 2 further includes a conducting punch 22, a moving insert 23 and an elastic component 24. The second power component 32 is connected to the conducting punch 22. The second power component 32 is used to drive the conducting punch 22 to move in a direction approaching or away from the positioning seat 11. The conducting punch 22 and the moving insert 23 have mutually matching inclined guide surfaces A. The conducting punch 22 can drive the moving insert 23 to extend or retract through the inclined guide surface A. The conducting component 21 is connected to the moving insert 23. When the conducting component 21 is extended in the second direction, the elastic component 24 gradually accumulates energy.

[0044] So, Figure 9Taking the perspective of as an example, during operation, the second power component 32 drives the conduction punch 22 to move downward. Under the action of the inclined guiding surface A, the moving block 23 moves towards the left end. The moving block 23 drives the conduction component 21 to extend towards the left end to conduct with the terminal part, and the elastic component 24 gradually stores energy. After the test is completed, the second power component 32 drives the conduction punch 23 to move upward. Under the restoring force of the elastic component 24, the moving block 23 moves towards the right end, so that the conduction punch 22 and the moving block 23 are always in contact through the inclined guiding surface A. The moving block 23 drives the conduction component 21 to retract towards the right end and disconnect from the terminal part.

[0045] It can be seen that the present invention adopts a structural form in which an inclined guiding surface A is formed between the conduction punch 22 and the moving block 23 to realize the movement turning of the conduction component 21. The movements in two directions do not interfere with each other, and there is sufficient movement space in both directions, reducing the risk of collision damage between the conduction component 21 and the terminal part during the lifting process of the conduction mechanism 2.

[0046] As can be seen from the foregoing, in this embodiment, the inclined guiding surface A can realize a 90° movement turning of the conduction component 21, that is, the included angle between the first direction and the second direction is 90°. In the first-stage movement, the conduction component 21 moves in the vertical direction, and in the second-stage movement, the conduction component 21 moves in the horizontal direction. The test fixture of this embodiment is suitable for the conduction test of the stator assembly in which the terminal part also extends in the horizontal direction in the installed state.

[0047] In practical applications, when the terminal part of the stator assembly extends obliquely in the installed state, the inclination angle of the inclined guiding surface A can also be changed to adjust the movement direction of the conduction component 21 in the second stage, so that the movement direction of the conduction component 21 is always the same as the extension direction of the terminal part of the stator assembly, ensuring that the conduction component 21 can be smoothly docked and conducted with the terminal part of the stator assembly. In other words, the included angle between the first direction and the second direction is not limited and can be adaptively designed according to the actual needs of the stator assembly.

[0048] Please continue to refer to Figures 4 - 9 , in this embodiment, the conduction mechanism 2 further includes a fixed block 25. The fixed block 25 is connected to the first power component 31 (directly or indirectly). The fixed block 25 has a first guiding part 25a and a second guiding part 25b that communicate with each other inside. The first guiding part 25a extends along the first direction, and the second guiding part 25b extends along the second direction. Part of the conduction punch 22 is inserted into the first guiding part 25a and can slide relatively along the extension direction of the first guiding part 25a. Part of the moving block 23 is installed inside the second guiding part 25b and can slide relatively along the extension direction of the second guiding part 25b;

[0049] There is an abutting wall disposed oppositely along the second direction between the fixed block 25 and the moving insert block 23. The elastic member 24 is axially installed between the two abutting walls. The elastic member 24 generates an elastic force acting on the moving insert block 23, and the acting direction of the elastic force faces the conduction punch 22.

[0050] In this way, the fixed block 25 can play an integrating role, and the conduction punch 22, the moving insert block 23 and the elastic member 24 are all integrally arranged on the fixed block 25. At the same time, the first guiding portion 25a plays a guiding role for the conduction punch 22, so that the conduction punch 22 can only move along the first direction or the reverse direction of the first direction inside the first guiding portion 25a. The second guiding portion 25b plays a guiding role for the moving insert block 23, so that the moving insert block 23 can only move along the second direction or the reverse direction of the second direction inside the second guiding portion 25b. The elastic member 24 is arranged between the fixed block 25 and the moving insert block 23. Under the action of the elastic force generated by the elastic member 24, the conduction punch 22 and the moving insert block 23 are always in close contact through the inclined guiding surface A, thereby ensuring reliable cooperation and reliable transmission between the conduction punch 22 and the moving insert block 23.

[0051] It can be seen from Figure 8 that in this embodiment, the fixed block 25 is a split structure, including a fixed block body 251 and a cover plate 252 located at one end of the fixed block body 251. A guiding groove 251a extending along the first direction is provided at one end of the fixed block body 251 facing the cover plate 252. When the cover plate 252 is connected to the fixed block body 251, the guiding groove 251a forms the first guiding portion 25a. The fixed block body 251 is provided with a second guiding portion 25b extending along the second direction. The second guiding portion 25b is in the form of a T-shaped groove. The second guiding portion 25b axially penetrates the end wall of the fixed block body 251 and penetrates the lower side wall of the fixed block body 251. The moving insert block 23 is a matching T-shaped block. The moving insert block 23 is installed inside the second guiding portion 25b, and the lower end portion of the moving insert block 23 is exposed outside the fixed block body 251 for convenient connection with the conduction component 21.

[0052] With the above settings, the fixed block 25 adopts a split structure of the fixed block body 251 and the cover plate 252. During installation, the moving insert block 23 and the elastic member 24 can be first installed inside the fixed block body 251, and then the cover plate 252 can be connected to the fixed block body 251, which makes the operation more convenient.

[0053] At the same time, it can be understood that in practical applications, the second guiding portion 25b is not limited to the form of a T-shaped groove, as long as the second guiding portion 25b extends along the second direction and can play a guiding role for the moving insert block 23.

[0054] It can be seen from Figure 8 and Figure 9It can be seen that in this embodiment, a receiving groove 23a is provided on the upper side wall of the moving block 23. The receiving groove 23a extends in the second direction. The right end of the receiving groove 23a is a closed end, and the wall of this closed end forms one of the abutting walls. The left end of the receiving groove 23a is an open end. The elastic member 24 is installed inside the receiving groove 23a. The right end of the elastic member 24 in the axial direction abuts (without a connection relationship) or is fixedly connected to the right end wall of the receiving groove 23a. The left end of the elastic member 24 in the axial direction abuts (without a connection relationship) or is fixedly connected to the inner side wall of the left end of the fixed block 25. The inner side wall of the left end of the fixed block 25 forms the other abutting wall, that is, the elastic member 24 is press-fitted between the two abutting walls and is in a compressed energy storage state.

[0055] In this way, when the moving block 23 drives the conduction member 21 to extend leftward, the elastic member 24 is further compressed to store energy. The receiving groove 23a can play a role in accommodating and guiding the elastic member 24, preventing the elastic member 24 from being forced out of the preset installation position, and enabling the elastic member 24 to only expand and contract in the second direction, generating an elastic force in the second direction.

[0056] Among them, the elastic member 24 can specifically adopt structural forms such as a helical spring or a flexible elastic member.

[0057] As can be seen from the foregoing, in this embodiment, the elastic member 24 is press-fitted between the two abutting walls and is in a compressed energy storage state. In practical applications, the connection method of the elastic member 24 is not limited to the above. For example, if the abutting wall provided on the fixed block 25 is defined as the first abutting wall, and the abutting wall provided on the moving block 23 is defined as the second abutting wall, the first abutting wall can be located on the right side of the second abutting wall. The two axial ends of the elastic member 24 are respectively fixedly connected to the first abutting wall and the second abutting wall and are in a tensile energy storage state. When the moving block 23 drives the conduction member 21 to extend leftward, the elastic member 24 is further stretched to store energy.

[0058] In this connection method, the elastic member 24 can specifically adopt structural forms such as a helical spring or a tension rope.

[0059] In this connection method, in order to prevent the elastic member 24 from obstructing the movement path of the conduction punch 22, the elastic member 24 can be arranged outside the fixed block 25. For example, the first abutting wall is provided on the lower side wall of the cover plate 252 and extends downward, the second abutting wall is provided on the lower side wall of the moving block 23 and extends downward, and the elastic member 24 is connected to the lower side of the fixed block 25.

[0060] Please continue to refer to Figure 9 , in this embodiment, the conduction mechanism 2 further includes an insulating connection block 26. The conduction member 21 is connected to the moving block 23 through the insulating connection block 26 to achieve insulating connection between the conduction member 21 and the moving block 23 and prevent electric leakage.

[0061] Among them, the insulating connection block 26 and the moving insert block 23 can be specifically fixedly connected through a connecting member, such as a bolt. Taking the connecting member as a bolt as an example, as Figure 9 shown, a threaded connection hole is provided on the end wall of the moving insert block 23, and a through hole is correspondingly provided on the insulating connection block 26. The through hole includes a large-diameter section and a small-diameter section connected axially. The small-diameter section is located at one end close to the moving insert block 23, and a step surface is formed between the large-diameter section and the small-diameter section. In the connected state, the bolt passes through the through hole provided on the insulating connection block 26 and is threadedly connected to the threaded connection hole provided on the moving insert block 23. At least part of the head of the bolt is located inside the large-diameter section of the through hole and abuts against the step surface, realizing the relative fixation of the insulating connection block 26 and the moving insert block 23.

[0062] Please continue to refer to Figure 1 、 Figure 2 , Figures 10 - 13 , Figure 10 For Figure 1 the position diagrams of the conduction mechanism and the alignment component in the detection device; Figure 11 For Figure 10 the structural schematic diagram of the second angle; Figure 12 For Figure 10 the structural schematic diagram of the third angle; Figure 13 For Figure 10 the structural schematic diagram of the fourth angle.

[0063] In this embodiment, the number of the conduction mechanisms 2 is five. The detection device further includes a first fixing part 4. The conduction mechanisms 2 are all connected to the first fixing part 4 and are circumferentially distributed. The first power component 31 is connected to the first fixing part 4, and the first power component 31 can drive the first fixing part 4 to move along the first direction or the reverse direction of the first direction.

[0064] With the above setting, the first fixing part 4 serves as a transfer component, connecting the first power component 31 and each conduction mechanism 2 into an integrated body, and realizing the lifting movement of each conduction mechanism 2 by the same power mechanism, so that each conduction mechanism 2 can move uniformly, ensuring that each conduction mechanism 2 and the corresponding terminal part can be accurately docked and conducted, and at the same time reducing the cost of the test tooling.

[0065] In this embodiment, the number of the conduction mechanisms 2 is five, and up to five terminal parts can be simultaneously subjected to conduction tests, greatly shortening the test time and reducing the cost.

[0066] It can be understood that in practical applications, the number of the conduction mechanisms 2 can be adaptively adjusted according to the number of stator components of the stator assembly. The number of the conduction mechanisms 2 can be at least one. Preferably, the number of the conduction mechanisms 2 is the same as that of the terminal parts. In this way, the conduction mechanisms 2 and the terminal parts can be conductively connected one by one during operation.

[0067] Furthermore, asFigure 2 As shown, the conduction mechanism 2 further includes a second fixing portion 27. The conduction punches 22 of each conduction mechanism 2 are all connected to the second fixing portion 27. The second power component 32 is fixed to the first fixing portion 4 and is connected to the second fixing portion 27. The second power component 32 can drive the second fixing portion 27 to move along the first direction or the reverse direction of the first direction.

[0068] With the above settings, each conduction mechanism 2 realizes synchronous actions through the same power component. First, it avoids the situation where each conduction mechanism 2 is driven by a power component and multiple power components are densely installed, making the device more streamlined and greatly reducing costs at the same time. Second, each conduction mechanism 2 moves synchronously, and the test data such as the contact force and contact area between each conduction mechanism 2 and the corresponding terminal portion are kept consistent, reducing the interference with the test data.

[0069] Please continue to refer to Figures 1 - 2 , in this embodiment, the first fixing portion 4 specifically includes a first plate portion 41 and a second plate portion 42 arranged vertically, and further includes a connecting rod 43. The connecting rod 43 connects the first plate portion 41 and the second plate portion 42. The connecting rod 43 extends along the first direction. The second fixing portion 27 is provided with a guiding hole at a corresponding position of the connecting rod 43. The second fixing portion 27 is movably sleeved on the corresponding connecting rod 43 through the guiding hole, and the second fixing portion 27 can slide along the extending direction of the connecting rod 43. The second fixing portion 27 is located between the first plate portion 41 and the second plate portion 42.

[0070] The first power component 31 is connected to the first plate portion 41. The fixing block 25 is connected to the lower side wall of the second plate portion 42. The second plate portion 42 is provided with a through hole at a position corresponding to the conduction punch 22. The conduction punch 22 passes through the corresponding through hole and is connected to the second fixing portion 27. The second power component 32 is fixed to the first plate portion 41 and is connected to the second fixing portion 27.

[0071] During operation, the first power component 31 generates a downward driving force, and the second power component 32 does not generate a driving force. At this time, the second power component 32 only plays a connecting role, connecting the first fixing portion 4 and the second fixing portion 27 into one body to maintain relative fixation. The first fixing portion 4 and the second fixing portion 27 synchronously descend in the initial position relationship under the action of the first power component 31. When the first fixing portion 4 descends to the required height, the hard limit stops the downward movement of the first fixing portion 4, indicating that the conduction mechanism 2 has descended to the required height. Then, the second power component 32 generates a downward driving force. The second power component 32 drives the second fixing portion 27 to move downward along the axial direction of the connecting rod 43. The second fixing portion 27 drives the conduction punch 22 to move downward, and further drives the conduction component 21 to extend out and dock with the terminal portion for conduction.

[0072] Thus, in this embodiment, the first plate portion 41 serves to connect the first power component 31 and fix the second power component 32, the second plate portion 42 serves to fix the conduction mechanism 2, the second fixing portion 27 is installed between the first plate portion 41 and the second plate portion 42 through the connecting rod 43, and the connecting rod 43 serves to guide the second fixing portion 27, so that the second fixing portion 27 can only slide along the extending direction of the connecting rod 43 under the action of the second power component 32, ensuring the movement accuracy of the conduction punch 22.

[0073] At the same time, from Figure 2 it can be seen that the conduction punch 22 has a limiting step 22a facing the second plate portion 42. When the conduction punch 22 descends until the limiting step 22a abuts against the upper side wall of the second plate portion 42, the conduction punch 22 cannot move downward any further. At this time, the conduction punch 22 is in the lowest position. At this position, the conduction component 21 and the corresponding terminal portion can be butt-connected and conduct electricity.

[0074] In this embodiment, the second power component 32 is fixed to the first plate portion 41 and is connected to the second fixing portion 27. In actual application, it is also feasible to fix the second power component 32 to the second plate portion 42 and connect it to the second fixing portion 27.

[0075] In this embodiment, the second power component 32 includes two driving members. The driving member can specifically be a mechanism capable of generating linear displacement such as a cylinder, a hydraulic cylinder, an electric cylinder, etc. In actual application, the number of driving members is not limited. For example, the second power component 32 can include at least one driving member.

[0076] In actual application, the movement of the conduction punch 22 can also have other driving methods. Specifically:

[0077] The first fixing portion 4 includes a first plate portion 41 and a second plate portion 42 arranged vertically, and also includes a connecting rod 43. The connecting rod 43 extends along the first direction. The lower end of the connecting rod 43 is connected to the second plate portion 42. The first plate portion 41 is sleeved on the connecting rod 43 and can slide along the axial direction of the connecting rod 43. It can be understood that the upper end of the connecting rod 43 should have a limiting structure to prevent the first plate portion 41 from detaching from the connecting rod 43. The second fixing portion 27 is sleeved on the connecting rod 43 and can slide along the axial direction of the connecting rod 43. The second fixing portion 27 is located between the first plate portion 41 and the second plate portion 42.

[0078] The first power component 31 is connected to the first plate portion 41. The fixing block 25 is connected to the lower side wall of the second plate portion 42. The second plate portion 42 is provided with a through hole at a position corresponding to the conduction punch 22. The conduction punch 22 passes through the corresponding through hole and is connected to the second fixing portion 27. It further includes a connecting member. The connecting member is arranged between the first plate portion 41 and the second fixing portion 27. The first plate portion 41 can drive the second fixing portion 27 to move through the connecting member.

[0079] It can be understood that the first plate portion 41 and the second fixing portion 27 are sleeved on the connecting rod 43. There will be a certain frictional force between the first plate portion 41 and the connecting rod 43, and between the second fixing portion 27 and the connecting rod 43. The magnitude of this frictional force should ensure that when the movement of the second plate portion 42 is not restricted, the first power component 31 generates a downward driving force and acts on the first plate portion 41. The first plate portion 41 will move downward synchronously with the second plate portion 42 without sliding along the axial direction of the connecting rod 43, avoiding the problem that the conduction component 21 extends out in advance.

[0080] During operation, the first power component 31 generates a downward driving force and acts on the first plate portion 41. The first plate portion 41, the second fixing portion 27, and the second plate portion 42 maintain their initial positional relationship and descend synchronously, avoiding collision damage caused by the premature extension of the conduction component 21; when the first fixing portion 4 descends to the required height, the hard limit stops the downward movement of the second plate portion 42, and the second plate portion 42 cannot continue to move downward; then, the first power component 31 continues to apply a downward driving force, and this driving force will drive the first plate portion 41 to slide along the axial direction of the connecting rod 43. Since the first plate portion 41 can drive the second fixing portion 27 to move through the connecting member, the second fixing portion 27 also slides along the axial direction of the connecting rod 43, and the second fixing portion 27 drives the conduction punch 22 to move, thereby realizing the extension or retraction of the conduction component 21.

[0081] It can be seen that in this embodiment, the first power component 31 is used to realize the movement of the conduction component 21 in two directions, that is, all tooling actions are completed by a single power mechanism. On the one hand, it avoids damage caused by the premature extension of the conduction component 21 when there is a program error; on the other hand, it effectively reduces the production cost.

[0082] Among them, the connecting member between the first plate portion 41 and the second fixing portion 27 can be a connecting rod or an elastic member such as a spiral spring. When the connecting member is a connecting rod, the first plate portion 41 and the second fixing portion 27 are rigidly connected; when the connecting member is an elastic member, the first plate portion 41 and the second fixing portion 27 are flexibly connected.

[0083] As can be seen from the foregoing, the frictional force between the first plate portion 41 and the connecting rod 43, and between the second fixing portion 27 and the connecting rod 43 plays a role in preventing the conduction component 21 from extending out in advance. In practical applications, an elastic member such as a spiral spring can also be provided between the second fixing portion 27 and the second plate portion 42. The lower end of the spiral spring abuts against the second plate portion 42, and the upper end of the spiral spring abuts against the second fixing portion 27.

[0084] Thus, during operation, the first power component 31 generates a downward driving force and acts on the first plate portion 41. The helical spring can support the positions of the first plate portion 41 and the second fixing portion 27, enabling the first plate portion 41, the second fixing portion 27, and the second plate portion 42 to descend synchronously while maintaining their initial positional relationship, preventing the conduction component 21 from protruding prematurely and being damaged by collision. When the first fixing portion 4 descends to the required height, the hard limit stops the downward movement of the second plate portion 42, and the second plate portion 42 cannot continue to move downward. Then, the first power component 31 continues to apply a downward driving force, which drives the first plate portion 41 to slide downward along the axial direction of the connecting rod 43. The first plate portion 41 drives the second fixing portion 27 to slide through the connecting member, and gradually compresses the helical spring between the second fixing portion 27 and the second plate portion 42. The second fixing portion 27 drives the conduction punch 22 to move, thereby realizing the protrusion or retraction of the conduction component 21.

[0085] Please refer to Figures 2 - 3 , Figures 14 - 15 , Figure 14 For Figure 1 the structural schematic diagram of the alignment component in the detection device; Figure 15 For Figure 14 the structural schematic diagram of the alignment component from a second angle.

[0086] In the present invention, the positioning seat 11 is provided with a first positioning notch 11a. The positioning mechanism 1 further includes an alignment component 12 and an axial limiting block 13. The alignment component 12 is located above the positioning seat 11. The alignment component 12 is of an annular structure. The inner wall of the alignment component 12 is provided with a second positioning notch 12a. The axial limiting block 13 is located above the alignment component 12. The alignment component 12 and the axial limiting block 13 are both connected to the lower side wall of the first fixing portion 4, specifically to the lower side wall of the second plate portion 42. The alignment component 12 is located below the conduction mechanism 2;

[0087] During operation, the stator assembly is first installed inside the positioning seat 11. The first positioning notch 11a of the positioning seat 11 is inserted and fitted with the first protruding portion of the stator assembly to achieve the preliminary positioning of the stator assembly. Then, the first power component 31 drives the first fixing portion 4 to move downward. The first fixing portion 4 drives the conduction mechanism 2, the alignment component 12, and the axial limiting block 13 to move downward synchronously until the stator assembly partially passes through the alignment component 12. The second positioning notch 12a of the alignment component 12 is inserted and fitted with the second protruding portion of the stator assembly. The upper end of the stator assembly in the axial direction abuts against the axial limiting block 13 to complete the precise positioning of the stator assembly. At this time, the first fixing portion 4 descends to the lowest position, and the terminal portion is located above the alignment component 12 and corresponds to the conduction mechanism 2 one by one for butt connection and conduction.

[0088] It can be seen that through the combined action of the positioning seat 11 and the alignment component 12, the present invention realizes the dual positioning of the stator assembly, ensuring the installation accuracy of the stator assembly. The axial limiting block 13 restricts the maximum downward displacement of the first fixing portion 4, ensuring that the subsequent conduction component 21 and the terminal portion can be accurately docked and conducted, preventing the terminal portion from deviating from the conduction component 21 and contacting other mechanisms except the conduction component 21, causing damage.

[0089] It can be understood that in practical applications, the positioning mechanism 1 can be provided with a separate power component, such as a third power component, which is connected to the alignment component 12 and the axial limiting block 13. The third power component is used to drive the alignment component 12 and the axial limiting block 13 to move in a direction close to or away from the positioning seat 11. However, in the present invention, the alignment component 12, the axial limiting block 13, and the conduction mechanism 2 are all connected to the first fixing portion 4. On the one hand, the lifting movement of the alignment component 12, the axial limiting block 13, and the conduction mechanism 2 is simultaneously realized through the first power component 31, eliminating the need to separately set a third power component, simplifying the structure of the test tooling, and reducing costs. On the other hand, when the axial limiting block 13 abuts against the upper end wall of the stator assembly, it indicates that the first fixing portion 4 has descended to the required position. At this time, the conduction mechanism 2 has also descended to the required position. It can be seen that the axial limiting block 13 can indicate the lowest descending position of the conduction mechanism 2, eliminating the need to set a separate limiting structure for the conduction mechanism 2, simplifying the structure, and reducing the risk of collision and damage between the conduction component 21 and the terminal portion during the lifting process of the conduction mechanism 2.

[0090] Please continue to refer to Figures 1 - 3 , in this embodiment, the positioning mechanism 1 further includes a blocking block 14 for hard-limiting and stopping the downward movement of the second plate portion 42. In other words, when the second plate portion 42 descends to abut against the blocking block 14, the conduction mechanism 2 descends to the required height.

[0091] With the above settings, by restricting the downward movement of the second plate portion 42 through the blocking block 14, it is possible to avoid damage to the stator assembly caused by the first power component 31 still applying a downward driving force when the axial limiting block 13 has already abutted against the upper end wall of the stator assembly in the case of a program error.

[0092] From Figures 4 - 9 It can be seen that in the present invention, the conduction component 21 includes a sleeve, a thimble, and a reset member. The thimble is detachably installed at the front end inside the sleeve and partially exposed outside the sleeve. The thimble can move axially along the sleeve, and the reset member is arranged inside the thimble. When the thimble is forced to retract, the reset member gradually stores energy.

[0093] In this way, the thimble is used to directly contact the terminal part. During operation, the conduction component 21 will first dock with the terminal part through the thimble. When the conduction component 21 continues to be forced to extend in the second direction, the thimble will be forced to retract, that is, move towards the inside of the sleeve. The process of the thimble retracting is the process of the reset component gradually storing energy, ensuring the stable conduction state between the thimble and the terminal part. After the test, when the conduction component 21 retracts in the reverse direction of the second direction, the thimble will extend under the restoring force of the reset component, that is, move towards the outside of the sleeve until the thimble returns to its initial position.

[0094] It can be seen that in the present invention, the conduction component 21 adopts the method of docking and conducting with the terminal part through the thimble. First of all, the docking method is simple, and the synchronous action of each conduction component 21 can be realized through the same power component, ensuring the consistency of the test environment and reducing the interference with the test data. At the same time, the thimble is a vulnerable part and needs to be replaced in time when it is damaged. In the present invention, the thimble adopts a detachable installation method. When the thimble needs to be replaced, only the damaged thimble needs to be pulled out and a new thimble is inserted, which is convenient to operate.

[0095] Please continue to refer to Figures 1 - 3 , in the present invention, the detection device further includes a base 51, a fixing plate 52 located above the base 51, and a guide post 53 connecting the base 51 and the fixing plate 52. The first power component 31 is installed on the fixing plate 52, and the guide post 53 extends along the first direction.

[0096] The first fixing part 4 is movably sleeved on the guide post 53. Specifically, the second plate part 42 is movably sleeved on the guide post 53 and can slide along the extension direction of the guide post 53 under the driving action of the first power component 31.

[0097] In this way, the base 51 is used to fix the positioning seat 11, the fixing plate 52 is used to install the first power component 31, and the guide post 53 plays a guiding role for the first fixing part 4, so that the first fixing part 4 can only move along the extension direction of the guide post 53 under the driving action of the first power component 31, ensuring the movement accuracy of the first fixing part 4 and the conduction mechanism 2.

[0098] In this embodiment, the first power component 31 is in the structural form of a cylinder. The cylinder block of the cylinder is fixed on the fixing plate 52, and the push rod of the cylinder extends downward along the first direction and is connected to the first plate part 41. The extension or retraction of the push rod can drive the conduction mechanism 2 to move up and down.

[0099] In practical applications, the first power component 31 can also be a driving mechanism such as a hydraulic cylinder or an electric cylinder that can generate linear displacement.

[0100] In addition, the connection method between the push rod of the air cylinder and the first plate portion 41 is not limited. For example, the first plate portion 41 is provided with a connection hole, the push rod passes through the connection hole, a connection thread is provided on the peripheral wall of the push rod, and two limit nuts are screwed on the outer periphery of the push rod. The limit nuts are located on both sides of the first plate portion 41 to limit the connection position of the push rod and the first plate portion 41; alternatively, the first plate portion 41 is provided with a connection hole, the push rod passes through the connection hole, and is fixed by interference fit.

[0101] When a separate third power component is provided to drive the alignment component 12 and the axial limit block 13, the third power component can also be a driving mechanism such as an air cylinder, a hydraulic cylinder, or an electric cylinder that can generate a linear displacement.

[0102] In addition, as Figure 1 shown, the fixing plate 52 is provided with a through hole, and the second power components 32 pass through the through hole one by one. In this way, the fixing plate 52 will not interfere with the movement of the second power components 32, and the height between the fixing plate 52 and the base 51 can be further shortened, reducing the volume and space occupation of the tooling and having a wider application range.

[0103] The present invention also provides a detection method, based on the foregoing detection device, including the following steps:

[0104] The stator assembly is positioned and installed on the positioning seat 11;

[0105] The conduction mechanism 2 moves in the first direction until the conduction mechanism 2 is in a preset detection position;

[0106] The conduction component 21 extends in the second direction until the conduction component 21 and the terminal portion of the stator assembly are axially butt-connected and conducted.

[0107] The detection method of the present invention is based on the foregoing detection device, so it has the same technical effects as the foregoing detection device and will not be elaborated here.

[0108] Further, the stator assembly is positioned and installed on the positioning seat 11, specifically including the following steps:

[0109] The stator assembly is installed inside the positioning seat 11, the first positioning notch 11a is inserted and matched with the first protruding portion, a part of the stator assembly passes through the inside of the alignment component 12, the second positioning notch 12a is inserted and matched with the second protruding portion, and the upper end in the axial direction of the stator assembly abuts against the axial limit block 13.

[0110] It can be seen that through the combined action of the positioning seat 11 and the alignment component 12, the double positioning of the stator assembly is achieved, ensuring the installation accuracy of the stator assembly. The maximum displacement of the downward movement of the first fixing portion 4 is restricted by the axial limiting block 13, ensuring that the conduction component 21 and the terminal portion can be accurately docked and conducted, preventing the terminal portion from deviating from the conduction component 21 and contacting other mechanisms except the conduction component 21, resulting in damage.

[0111] The above has introduced in detail a detection device and a detection method provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A detection device for detecting the electrical performance of a stator assembly, the stator assembly having a terminal portion, Characterized in that, The detection device includes a positioning mechanism (1), a conduction mechanism (2) and a power mechanism. The positioning mechanism (1) includes a positioning seat (11). The power mechanism drives the conduction mechanism (2) to be able to approach or move away from the positioning seat (11). Define the moving direction of the conduction mechanism (2) as the first direction, The conduction mechanism (2) includes a conduction component (21). The power mechanism can drive the conduction component (21) to extend or retract. The moving direction of the conduction component (21) is the second direction. The first direction and the second direction are arranged at an angle.

2. The detection device according to claim 1, Characterized in that, The conduction mechanism (2) further includes a conduction punch (22), a moving block (23) and an elastic component (24). The power mechanism drives the conduction punch (22) to move in a direction approaching or moving away from the positioning seat (11). The conduction punch (22) and the moving block (23) have mutually cooperating inclined guide surfaces (A). The conduction component (21) is connected to the moving block (23). The conduction punch (22) drives the moving block (23) to move along the second direction or the reverse of the second direction through the inclined guide surface (A). When the conduction component (21) extends along the second direction, the elastic component (24) gradually stores energy.

3. The detection device according to claim 2, Characterized in that, The conduction mechanism (2) further includes a fixed block (25). The fixed block (25) has a first guide portion (25a) and a second guide portion (25b) that communicate with each other. The first guide portion (25a) extends along the first direction. The second guide portion (25b) extends along the second direction. The conduction punch (22) is partially inserted into the first guide portion (25a) and can slide relatively along the extending direction of the first guide portion (25a). The moving block (23) is partially installed in the second guide portion (25b) and can slide relatively along the extending direction of the second guide portion (25b); The fixed block (25) and the moving block (23) have abutting walls arranged oppositely in the second direction. The elastic component (24) is axially installed between the two abutting walls. The elastic component (24) generates an elastic force acting on the moving block (23), and the acting direction of the elastic force faces the conduction punch (22).

4. The detection device according to claim 3, Characterized in that, The number of the conduction mechanisms (2) is one or more. The detection device further includes a first fixing part (4). The conduction mechanism (2) is connected to the first fixing part (4). The power mechanism includes a first power component (31). The first power component (31) is connected to the first fixing part (4), and the first power component (31) drives the first fixing part (4) to move along the first direction or the reverse direction of the first direction.

5. The detection device according to claim 4, wherein, the number of the conduction mechanisms (2) is multiple. The conduction mechanism (2) further includes a second fixing part (27). The conduction punches (22) of each conduction mechanism (2) are all connected to the second fixing part (27), and the power mechanism drives the second fixing part (27) to move along the first direction or the reverse direction of the first direction.

6. The detection device according to claim 5, wherein, the first fixing part (4) includes a first plate part (41) and a second plate part (42) arranged vertically, and further includes a connecting rod (43). The connecting rod (43) connects the first plate part (41) and the second plate part (42). The connecting rod (43) extends along the first direction. The second fixing part (27) is movably sleeved on the connecting rod (43) and can slide along the extending direction of the connecting rod (43). The second fixing part (27) is located between the first plate part (41) and the second plate part (42). The first power component (31) is connected to the first plate part (41). The fixing block (25) is connected to the lower side wall of the second plate part (42). The second plate part (42) is provided with a through hole at a position corresponding to the conduction punch (22). The conduction punch (22) passes through the corresponding through hole and is connected to the second fixing part (27). The power mechanism further includes a second power component (32). The second power component (32) is installed on the first fixing part (4) and is connected to the second fixing part (27).

7. The detection device according to claim 5, wherein, the first fixing part (4) includes a first plate part (41) and a second plate part (42) arranged vertically, and further includes a connecting rod (43). The connecting rod (43) extends along the first direction. The lower end of the connecting rod (43) is connected to the second plate part (42). The first plate part (41) is sleeved on the connecting rod (43) and can slide along the axial direction of the connecting rod (43). The second fixing part (27) is sleeved on the connecting rod (43) and can slide along the axial direction of the connecting rod (43). The second fixing part (27) is located between the first plate part (41) and the second plate part (42). The first power component (31) is connected to the first plate portion (41), the fixing block (25) is connected to the lower side wall of the second plate portion (42), the second plate portion (42) is provided with a through hole at a position corresponding to the conduction punch (22), the conduction punch (22) passes through the corresponding through hole and is connected to the second fixing portion (27), and further includes a connecting member, the connecting member is arranged between the first plate portion (41) and the second fixing portion (27), and the first plate portion (41) drives the second fixing portion (27) to move through the connecting member.

8. The detection device according to any one of claims 1-6, characterized in that the positioning seat (11) is provided with a first positioning notch (11a), the positioning mechanism (1) further includes an alignment component (12) and an axial limiting block (13), the alignment component (12) is located above the positioning seat (11), the alignment component (12) is of an annular structure, a second positioning notch (12a) is arranged on the inner wall of the alignment component (12), the axial limiting block (13) is located above the alignment component (12), and the power mechanism drives the alignment component (12) and the axial limiting block (13) to move in a direction close to or away from the positioning seat (11).

9. The detection device according to claim 8, characterized in that the detection device further includes a first fixing portion (4), the conduction mechanism (2) is connected to the first fixing portion (4), the power mechanism includes a first power component (31), the first power component (31) is connected to the first fixing portion (4), the first power component (31) drives the first fixing portion (4) to move along the first direction or the reverse direction of the first direction, and the alignment component (12) and the axial limiting block (13) are connected to the lower side wall of the first fixing portion (4).

10. The detection device according to any one of claims 1-6, characterized in that the conduction component (21) includes a sleeve, a thimble and a reset member, the thimble is detachably installed at the front end inside the sleeve and partially exposed outside the sleeve, the thimble can move along the axial direction of the sleeve, the reset member is arranged inside the thimble, and when the thimble is retracted under force, the reset member gradually stores energy.

11. The detection device according to any one of claims 4-6, characterized in that the detection device further includes a base (51), a fixing plate (52) located above the base (5), and a guiding column (53) connecting the base (51) and the fixing plate (52), the guiding column (53) extends along the first direction, the first power component (31) is installed on the fixing plate (52), and the first fixing portion (4) is movably sleeved on the guiding column (53) and can slide along the extending direction of the guiding column (53) under the driving action of the first power component (31).

12. A detection method based on the detection device according to any one of claims 1-11, characterized in that it includes the following steps: The stator assembly is positioned and installed on the positioning seat (11); The conduction mechanism (2) moves along the first direction until the conduction mechanism (2) is in a preset detection position; The conduction component (21) extends along the second direction until the conduction component (21) abuts against the terminal part of the stator assembly.

13. According to the detection method described in claim 12, characterized in that The stator assembly has a first protrusion and a second protrusion. The positioning seat (11) is provided with a first positioning notch (11a). The positioning mechanism (1) further includes an alignment component (12) and an axial limiting block (13). The alignment component (12) is located above the positioning seat (11). The alignment component (12) is of an annular structure. The inner wall of the alignment component (12) is provided with a second positioning notch (12a). The axial limiting block (13) is located on the upper side of the alignment component (12). The power mechanism drives the alignment component (12) and the axial limiting block (13) to move in a direction close to or away from the positioning seat (11). The stator assembly is positioned and installed on the positioning seat (11), specifically including the following steps: The stator assembly is installed inside the positioning seat (11). The first positioning notch (11a) is in plug-in fit with the first protrusion. A part of the stator assembly passes through the inside of the alignment component (12). The second positioning notch (12a) is in plug-in fit with the second protrusion. The upper end of the stator assembly in the axial direction abuts against the axial limiting block (13).

Images