Assembly and testing fixture

Abstract

The utility model discloses an assembly and detection jig, and the assembly and detection jig is used for detecting and mounting the plastic steel sleeve to the front wheel of the baby carriage and comprises: jig block and detection component. The jig block is used for being connected with the driving mechanism, and the detection component is installed to the jig block and comprises the first electrode and the second electrode who arranges along the first direction, one of first electrode and second electrode is positive and the other is negative, and the first electrode is used for contacting with the plastic steel sleeve and can move along the first direction, wherein, when the first electrode contacts with the plastic steel sleeve, the first electrode moves to the direction of being close to the second electrode to contact with the second electrode, and when the first electrode does not contact with the plastic steel sleeve, the first electrode is separated from the second electrode. The assembly and detection jig of the utility model embodiment can not only press the plastic steel sleeve on the front wheel of the baby carriage, but also can detect whether the plastic steel sleeve is missed on the front wheel by using the assembly and detection jig, so that the missed detection situation can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of jigs, and in particular to an assembly and testing jig. Background Technology

[0002] In related technologies, the front wheels of strollers are equipped with plastic sleeves, which are installed on the axle of the front wheels to protect the axle and reduce friction and vibration during wheel rotation. In these technologies, the plastic sleeves are pressed onto the front wheels using an assembly fixture, and the presence of the sleeves is checked by simple visual inspection. However, visual inspection is prone to oversights and missed detections. Therefore, effectively reducing missed detections while using an assembly fixture to press the plastic sleeves onto the front wheels is a technical problem that needs to be solved. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an assembly and testing fixture that can press plastic sleeves onto the front wheels of a stroller, and that the fixture has a detection function to detect whether a plastic sleeve is missing from the front wheels, thereby effectively reducing the chance of missed detections.

[0004] According to an embodiment of the present invention, an assembly and testing fixture is used to install a plastic sleeve onto the front wheel of a stroller. The assembly and testing fixture includes: a fixture block for connection to a drive mechanism; and a testing component mounted on the fixture block and including a first electrode and a second electrode arranged along a first direction, wherein one of the first electrode and the second electrode is a positive electrode and the other is a negative electrode. The first electrode is used to contact the plastic sleeve and is movable along the first direction. When the first electrode contacts the plastic sleeve, the first electrode moves toward the direction closer to the second electrode to make conductive contact with the second electrode. When the first electrode is not in contact with the plastic sleeve, the first electrode separates from the second electrode.

[0005] According to the assembly and testing fixture of this utility model embodiment, by setting a detection component including a first electrode and a second electrode on a fixture block, with the second electrode fixed relative to the fixture block and the first electrode movable relative to the fixture block, during the process of pressing a plastic sleeve onto the front wheel using this assembly and testing fixture, a drive mechanism drives the assembly and testing fixture to move and press the plastic sleeve onto the front wheel. If a plastic sleeve is pre-installed on the front wheel, the first electrode contacts the plastic sleeve, pressing the plastic sleeve tightly while the first electrode moves along a first direction and toward the direction closer to the second electrode to make conductive contact with the second electrode, forming a positive and negative electrode path, thereby detecting and determining that a plastic sleeve is installed on the front wheel. If the first electrode and the second electrode do not contact, and a positive and negative electrode path cannot be formed, it is determined that a plastic sleeve is missing. Using this assembly and testing fixture, not only can a plastic sleeve be pressed onto the front wheel of a stroller, but it can also detect whether a plastic sleeve is missing from the front wheel, thereby effectively reducing the chance of missed detections.

[0006] In some embodiments of this utility model, the detection component includes an elastic element that is elastically deformable in the first direction. The elastic element has a first end and a second end disposed along the first direction. The first end is connected to or abuts against the first electrode, and the second end is connected to or abuts against the fixture block. The elastic element is used to drive the first electrode to move in a direction away from the second electrode to separate from the second electrode.

[0007] In some embodiments of this utility model, the elastic element is a spring and is sleeved on the outer periphery of the first electrode.

[0008] In some embodiments of this utility model, the detection component is detachably connected to the fixture block; and / or, the first electrode is provided with a first wiring port, the second electrode is provided with a second wiring port, and the first wiring port and the second wiring port are used to connect to the detection wire harness.

[0009] In some embodiments of this utility model, the fixture block includes a drive connecting block, an insulating block, and a guide block arranged sequentially along the first direction. The drive connecting block and the guide block are both metal parts. The insulating block is connected between the drive connecting block and the guide block. The first electrode is installed on the guide block, and the second electrode is installed on the drive connecting block. The drive connecting block is used to connect with the drive mechanism.

[0010] In some embodiments of this utility model, the guide block is provided with a first mounting channel extending along the first direction, the first mounting channel passing through the opposite sides of the guide block along the first direction, and the first electrode is mounted in the first mounting channel; the drive connection block is provided with a second mounting channel, the second mounting channel passing through the opposite sides of the drive connection block along the first direction, and the second electrode is mounted in the second mounting channel; the insulating block is provided with a third mounting channel, the third mounting channel connecting the first mounting channel and the second mounting channel, a portion of the first electrode and a portion of the second electrode are both located in the third mounting channel, and a portion of the first electrode protrudes from the guide block along the first direction and in a direction away from the second electrode.

[0011] In some embodiments of this utility model, the detection component includes an elastic element that is elastically deformable in the first direction. The elastic element is sleeved on the outer periphery of the first electrode and has a first end and a second end disposed along the first direction. The outer peripheral wall of the first electrode has a first stepped surface, and the inner peripheral wall of the first mounting channel has a second stepped surface. The elastic element is located between the first stepped surface and the second stepped surface. The first end abuts against the first stepped surface, and the second end abuts against the second stepped surface. The elastic element is used to drive the first electrode to move in a direction away from the second electrode to separate it from the second electrode.

[0012] In some embodiments of this utility model, the first electrode includes a first electrode post and a second electrode post connected by threads. The first electrode post is installed in the first mounting channel. The elastic element is sleeved on the outer peripheral side of the first electrode post. The outer peripheral wall of the first electrode post forms the first stepped surface. Along the first direction and in the direction away from the second electrode, a portion of the first electrode post protrudes from the guide block and is used to contact the plastic sleeve. A portion of the second electrode post is located in the third mounting channel and is used to make conductive contact with the second electrode.

[0013] In some embodiments of this utility model, the second electrode post includes a contact section and a connecting section disposed along the first direction. The contact section is located in the third mounting channel and is used for conductive contact with the second electrode. The connecting section is threadedly connected to the first electrode post. A third stepped surface is formed between the contact section and the connecting section. The third stepped surface is located on the side of the guide block near the insulating block. When the first electrode and the second electrode are separated, the third stepped surface is adapted to abut against the guide block in the first direction.

[0014] In some embodiments of this utility model, the second electrode is threadedly connected to the inner peripheral wall of the second mounting channel; and / or, the insulating block or the guide block is provided with a first wire hole, and the drive connection block is provided with a second wire hole, the first wire hole and the second wire hole being used to detect the wire harness passing through to connect with the first electrode and the second electrode.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of an assembly and testing fixture according to some embodiments of the present utility model; Figure 2 yes Figure 1 A schematic diagram of the assembly and testing fixture from another angle; Figure 3 yes Figure 1 A schematic diagram of the assembly and testing fixture from another angle; Figure 4 yes Figure 1 A schematic diagram showing the separation of the first and second electrodes of the assembly and testing fixture in the process; Figure 5 yes Figure 1 A schematic diagram showing the separation of the first and second electrodes of the assembly and testing fixture at another angle; Figure 6 yes Figure 1 A schematic diagram showing the separation of the first and second electrodes at another angle in the assembly and testing fixture; Figure 7 yes Figure 1 A schematic diagram of the conductive contact between the first and second electrodes of the assembly and testing fixture in the process; Figure 8 yes Figure 1 A schematic diagram of the conductive contact between the first electrode and the second electrode at another angle in the assembly and testing fixture; Figure 9 yes Figure 1 A schematic diagram of the conductive contact between the first electrode and the second electrode at another angle in the assembly and testing fixture.

[0017] Figure label: 100. Assembly and testing fixtures; 10. Fixture block; 11. Guide block; 111. First mounting channel; 112. Second stepped surface; 12. Drive connection block; 121. Second mounting channel; 122. Second wire hole; 13. Insulating block; 131. Third mounting channel; 132. First wire hole; 20. First electrode; 21. First pole post; 211. First stepped surface; 22. Second pole post; 221. Contact section; 222. Connecting section; 223. Third stepped surface; 224. First wiring port; 30. Second electrode; 31. Second connection port; 40. Elastic components. Detailed Implementation The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0020] In the description of this utility model, "multiple" means two or more.

[0021] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0022] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0023] The following is for reference. Figures 1-9Description of assembly and testing fixture 100 according to an embodiment of the present utility model.

[0024] Reference Figures 1-3 According to an embodiment of the present invention, an assembly and testing fixture 100 is used to install a plastic sleeve onto the front wheel of a stroller. The assembly and testing fixture 100 includes a fixture block 10 and a testing component, the testing component being mounted on the fixture block 10, and the fixture block 10 being connected to a drive mechanism. When using the assembly and testing fixture 100 to press the plastic sleeve pre-installed on the front wheel onto the front wheel, the fixture block 10 can be connected to the drive mechanism, which can drive the assembly and testing fixture 100 to move in a first direction, thereby pressing the plastic sleeve onto the front wheel. The drive mechanism can be a cylinder.

[0025] The detection assembly includes a first electrode 20 and a second electrode 30 arranged along a first direction, wherein one of the first electrode 20 and the second electrode 30 is a positive electrode and the other is a negative electrode. For example, the first electrode 20 can be a positive electrode and the second electrode 30 can be a negative electrode; or, the first electrode 20 can be a negative electrode and the second electrode 30 can be a positive electrode. Both the first electrode 20 and the second electrode 30 can be generally columnar, and both the first electrode 20 and the second electrode 30 can be copper electrodes. The first direction can be referred to as direction e1 in the attached drawing.

[0026] The first electrode 20 is movable relative to the fixture block 10 along a first direction, while the second electrode 30 is fixed relative to the fixture block 10. The movement of the first electrode 20 along the first direction allows for conductive contact or separation between the first electrode 20 and the second electrode 30. When the first electrode 20 moves towards the second electrode 30, it can make contact with the second electrode 30, thus achieving conductive contact; when the first electrode 20 moves away from the second electrode 30, it can separate from the second electrode 30, thus achieving disconnection between the first electrode 20 and the second electrode 30.

[0027] The first electrode 20 is used to contact the plastic steel sleeve. When the first electrode 20 contacts the plastic steel sleeve, the first electrode 20 moves toward the direction of the second electrode 30 to make conductive contact with the second electrode 30, forming a positive and negative electrode path, so that it can be detected and determined that the front wheel is equipped with a plastic steel sleeve. When the first electrode 20 does not contact the plastic steel sleeve, the first electrode 20 and the second electrode 30 are separated and a positive and negative electrode path cannot be formed, so it is determined that the plastic steel sleeve is missing.

[0028] When using the assembly and testing fixture 100 to press the pre-installed plastic sleeve on the front wheel onto the front wheel, the testing wiring harness can be connected to the first electrode 20 and the second electrode 30 respectively to form a testing circuit. For example, the testing wiring harness includes a positive wiring harness and a negative wiring harness, with the first electrode 20 being the positive electrode and the second electrode 30 being the negative electrode. The positive wiring harness is connected to the first electrode 20, and the negative wiring harness is connected to the second electrode 30. The fixture block 10 can be connected to a drive mechanism, which can drive the assembly and testing fixture 100 to move along a first direction.

[0029] If a plastic steel sleeve is already pre-installed on the front wheel, during the process of the drive mechanism driving the assembly and testing fixture 100 to move in the first direction, the first electrode 20 contacts the plastic steel sleeve pre-installed on the front wheel and presses the plastic steel sleeve onto the front wheel. During this process, the first electrode 20 moves towards the direction closer to the second electrode 30 under the reaction force of the plastic steel sleeve until the first electrode 20 contacts the second electrode 30. The second electrode 30 then stops moving towards the direction closer to the second electrode 30. At this time, the detection circuit forms a circuit, thereby detecting and determining that a plastic steel sleeve is installed on the front wheel.

[0030] If a plastic steel sleeve is actually missing from the front wheel, during the process of the drive mechanism driving the assembly and testing fixture 100 to move in the first direction, the first electrode 20 cannot contact the plastic steel sleeve, and the first electrode 20 cannot be moved towards the direction of the second electrode 30 due to the reaction force of the plastic steel sleeve. That is, the first electrode 20 will not move towards the direction of the second electrode 30 and the first electrode 20 remains separated from the second electrode 30. At this time, the detection circuit is open, thereby detecting and determining that a plastic steel sleeve is missing from the front wheel.

[0031] After assembly and testing are completed, the test wire harness can be removed from the assembly and testing fixture 100 and reconnected to the first electrode 20 and the second electrode 30 of the assembly and testing fixture 100 for the next use.

[0032] It should be noted that the plastic steel sleeve is an engineering plastic part with high hardness and insulation properties. During the process of pressing the plastic steel sleeve using the assembly and testing fixture 100, the first electrode 20 is in contact with the plastic steel sleeve with insulation properties, and the first electrode 20 will not come into contact with other parts on the front wheel.

[0033] According to the assembly and testing fixture 100 of this utility model embodiment, by setting a testing component including a first electrode 20 and a second electrode 30 on the fixture block 10, the second electrode 30 is fixed relative to the fixture block 10 and the first electrode 20 is movable relative to the fixture block 10, in the process of pressing the plastic steel sleeve onto the front wheel using the assembly and testing fixture 100, the drive mechanism drives the assembly and testing fixture 100 to move and press the plastic steel sleeve onto the front wheel. If the front wheel is pre-installed with a plastic steel sleeve, the first electrode 20 contacts the plastic steel sleeve, and while pressing the plastic steel sleeve, the first electrode 20 moves along the first direction and toward the direction close to the second electrode 30 to make conductive contact with the second electrode 30, forming a positive and negative electrode path, thereby detecting and determining that the front wheel is equipped with a plastic steel sleeve. If the first electrode 20 and the second electrode 30 do not contact each other and a positive and negative electrode path cannot be formed, it is determined that the plastic steel sleeve is missing. Using this assembly and testing fixture 100, not only can the plastic sleeve be pressed onto the front wheel of the stroller, but the assembly and testing fixture 100 can also be used to detect whether the plastic sleeve is missing from the front wheel, thereby effectively reducing the chance of missed detection.

[0034] In some embodiments of this utility model, reference is made to Figures 4-9 The detection component includes an elastic element 40, which is elastically deformable in a first direction. The elastic element 40 has a first end and a second end disposed along the first direction. The first end of the elastic element 40 is connected to or abuts against the first electrode 20, and the second end of the elastic element 40 is connected to or abuts against the fixture block 10. The elastic element 40 is used to drive the first electrode 20 to move in a direction away from the second electrode 30 so as to separate from the second electrode 30.

[0035] If a plastic sleeve is pre-installed on the front wheel, during the process of the drive mechanism driving the assembly and testing fixture 100 to move in the first direction, the first electrode 20 contacts the plastic sleeve pre-installed on the front wheel and presses the plastic sleeve onto the front wheel. During this process, the elastic element 40 is compressed in the first direction, and the first electrode 20 moves towards the second electrode 30 under the reaction force of the plastic sleeve until the first electrode 20 contacts the second electrode 30. The second electrode 30 then stops moving towards the second electrode 30, at which point the detection circuit is completed, thereby detecting and determining that a plastic sleeve is installed on the front wheel. After the assembly and testing fixture 100 completes pressing the plastic sleeve onto the front wheel and completes the detection, the assembly and testing fixture 100 separates from the front wheel. At this time, the first electrode 20 is no longer subject to the reaction force of the plastic sleeve, and the first electrode 20 moves away from the second electrode 30 under the elastic force of the elastic element 40, thereby separating the first electrode 20 from the second electrode 30 and keeping the first electrode 20 and the second electrode 30 in a separated state.

[0036] If a plastic sleeve is actually missing from the front wheel, during the process of the drive mechanism driving the assembly and testing fixture 100 to move in the first direction, the first electrode 20 cannot contact the plastic sleeve, and the first electrode 20 cannot be moved towards the second electrode 30 by the reaction force of the plastic sleeve. That is, the first electrode 20 will not move towards the second electrode 30, and the first electrode 20 remains separated from the second electrode 30 under the action of elastic force. At this time, the detection circuit is open, thereby detecting and determining that a plastic sleeve is missing from the front wheel.

[0037] The elastic element 40 facilitates the reset of the first electrode 20 to a state separated from the second electrode 30. Furthermore, when the front wheel is missing a plastic steel sleeve, the elastic element 40 can keep the first electrode 20 and the second electrode 30 in a separated state, making the detection results more accurate and reliable.

[0038] In some embodiments of this utility model, reference is made to Figures 4-9 The elastic element 40 is a spring and is sleeved on the outer periphery of the first electrode 20. By setting the elastic element 40 as a spring and sleeved on the outer periphery of the first electrode 20, the structure of the elastic element 40 is simple and the installation of the elastic element 40 is convenient. Furthermore, the first electrode 20 can also guide the deformation of the elastic element 40 and guide the elastic deformation of the elastic element 40 along the first direction.

[0039] In some embodiments of this utility model, reference is made to Figures 4-9 The detection component is detachably connected to the fixture block 10. The first electrode 20 is detachably connected to the fixture block 10, for example, by a threaded connection; the second electrode 30 is also detachably connected to the fixture block 10, for example, by a threaded connection. This detachable connection facilitates the maintenance and replacement of the detection component, and consequently, the maintenance and replacement of the first electrode 20 and the second electrode 30.

[0040] In some embodiments of this utility model, reference is made to Figures 4-9 The first electrode 20 is provided with a first connection port 224, and the second electrode 30 is provided with a second connection port 31. The first connection port 224 and the second connection port 31 are used to connect to the detection wire harness. By providing the first connection port 224 on the first electrode 20, it is convenient to connect the detection wire harness to the first electrode 20; by providing the second connection port 31 on the second electrode 30, it is convenient to connect the detection wire harness to the second electrode 30.

[0041] For example, the detection harness includes a positive electrode harness and a negative electrode harness, with the first electrode 20 being the positive electrode and the second electrode 30 being the negative electrode. The positive electrode harness has a first plug-in end, which can be inserted into the first terminal 224 of the first electrode 20, thereby facilitating the connection and disconnection of the positive electrode harness from the first electrode 20; the negative electrode harness has a second plug-in end, which can be inserted into the second terminal 31 of the second electrode 30, thereby facilitating the connection and disconnection of the negative electrode harness from the second electrode 30.

[0042] In some embodiments of this utility model, reference is made to Figures 4-9 The jig block 10 includes a drive connecting block 12, an insulating block 13, and a guide block 11 arranged sequentially along a first direction. Both the drive connecting block 12 and the guide block 11 are metal parts. The insulating block 13 connects the drive connecting block 12 and the guide block 11. A first electrode 20 is mounted on the guide block 11, and a second electrode 30 is mounted on the drive connecting block 12. The drive connecting block 12 is used to connect with the drive mechanism. By configuring the jig block 10 to include the aforementioned drive connecting block 12, insulating block 13, and guide block 11, with the drive connecting block 12 and guide block 11 being metal parts, such as steel blocks, the jig block 10 achieves high structural strength, meeting the usage requirements. Furthermore, by setting an insulating block 13 between the drive connecting block 12 and the guide block 11, the drive connecting block 12 and the guide block 11 can be insulated and separated by the insulating block 13, thereby preventing the first electrode 20 and the second electrode 30 from being electrically connected through the fixture block 10 without direct contact. This ensures that the first electrode 20 and the second electrode 30 are in a disconnected electrical connection state when they are separated, thus ensuring the accuracy of the detection results.

[0043] Optionally, the drive connecting block 12 and the insulating block 13 can be bonded and fixed together, and the guide block 11 and the insulating block 13 can be bonded and fixed together.

[0044] In some embodiments of this utility model, reference is made to Figures 4-9 The guide block 11 has a first mounting channel 111 extending along a first direction. The first mounting channel 111 passes through opposite sides of the guide block 11 along the first direction. The first electrode 20 is mounted in the first mounting channel 111. For example, the first electrode 20 can be inserted into the first mounting channel 111 from one side of the guide block 11 along the first direction. By providing the first mounting channel 111 for mounting and accommodating the first electrode 20 in the guide block 11, the first electrode 20 can be protected, and the first mounting channel 111 can guide the movement of the first electrode 20 along the first direction.

[0045] The drive connecting block 12 is provided with a second mounting channel 121, which extends through both sides of the drive connecting block 12 along the first direction. The second electrode 30 is mounted in the second mounting channel 121. For example, the second electrode 30 can be inserted into the second mounting channel 121 from one side of the drive connecting block 12 along the first direction. By providing the second mounting channel 121 in the drive connecting block 12 for mounting and accommodating the second electrode 30, the second electrode 30 can be protected.

[0046] The insulating block 13 has a third mounting channel 131, which connects the first mounting channel 111 and the second mounting channel 121. For example, the first mounting channel 111, the second mounting channel 121, and the third mounting channel 131 are coaxially arranged. Parts of the first electrode 20 and the second electrode 30 are located within the third mounting channel 131, thus facilitating contact or separation between the first electrode 20 and the second electrode 30 when the first electrode 20 moves along the first direction. Along the first direction and away from the second electrode 30, a portion of the first electrode 20 protrudes from the guide block 11. Thus, when the plastic sleeve is pressed onto the front wheel using the assembly and testing fixture 100, the portion of the first electrode 20 protruding from the guide block 11 along the first direction and away from the second electrode 30 can extend into the front wheel to press the plastic sleeve.

[0047] During the assembly and testing of the fixture 100, the first electrode 20 can be installed into the first mounting channel 111 of the guide block 11, and the second electrode 30 can be installed into the second mounting channel 121 of the drive connecting block 12. Then, the guide block 11, the insulating block 13 and the drive connecting block 12 are connected, so that a portion of the first electrode 20 and a portion of the second electrode 30 are accommodated in the third mounting channel 131 of the insulating block 13.

[0048] In some embodiments of this utility model, reference is made to Figures 4-9 The detection component includes an elastic element 40, which is elastically deformable in a first direction. The elastic element 40 is sleeved on the outer peripheral side of the first electrode 20 and has a first end and a second end arranged along the first direction. The outer peripheral wall of the first electrode 20 is formed with a first stepped surface 211, and the inner peripheral wall of the first mounting channel 111 is formed with a second stepped surface 112. The elastic element 40 is located between the first stepped surface 211 and the second stepped surface 112. The first end of the elastic element 40 abuts against the first stepped surface 211, and the second end of the elastic element 40 abuts against the second stepped surface 112. The elastic element 40 is used to drive the first electrode 20 to move in a direction away from the second electrode 30 so as to separate from the second electrode 30.

[0049] If a plastic sleeve is pre-installed on the front wheel, during the process of the drive mechanism driving the assembly and testing fixture 100 to move in the first direction, the first electrode 20 contacts the plastic sleeve pre-installed on the front wheel and presses the plastic sleeve onto the front wheel. During this process, the elastic element 40 is compressed in the first direction, and the first electrode 20 moves towards the second electrode 30 under the reaction force of the plastic sleeve until the first electrode 20 contacts the second electrode 30. The second electrode 30 then stops moving towards the second electrode 30, at which point the detection circuit is completed, thereby detecting and determining that a plastic sleeve is installed on the front wheel. After the assembly and testing fixture 100 completes pressing the plastic sleeve onto the front wheel and completes the detection, the assembly and testing fixture 100 separates from the front wheel. At this time, the first electrode 20 is no longer subject to the reaction force of the plastic sleeve, and the first electrode 20 moves away from the second electrode 30 under the elastic force of the elastic element 40, thereby separating the first electrode 20 from the second electrode 30 and keeping the first electrode 20 and the second electrode 30 in a separated state.

[0050] If a plastic sleeve is actually missing from the front wheel, during the process of the drive mechanism driving the assembly and testing fixture 100 to move in the first direction, the first electrode 20 cannot contact the plastic sleeve, and the first electrode 20 cannot be moved towards the second electrode 30 by the reaction force of the plastic sleeve. That is, the first electrode 20 will not move towards the second electrode 30, and the first electrode 20 remains separated from the second electrode 30 under the action of elastic force. At this time, the detection circuit is open, thereby detecting and determining that a plastic sleeve is missing from the front wheel.

[0051] The elastic element 40 facilitates the resetting of the first electrode 20 to a state separated from the second electrode 30. Furthermore, when the front wheel is missing its plastic sleeve, the elastic element 40 keeps the first electrode 20 and the second electrode 30 separated, resulting in more accurate and reliable test results. By fitting the elastic element 40 onto the outer periphery of the first electrode 20, installation of the elastic element 40 is convenient, and the first electrode 20 also guides the deformation of the elastic element 40, directing its elastic deformation along the first direction.

[0052] Furthermore, by providing a first stepped surface 211 on the first electrode 20 and a second stepped surface 112 on the inner peripheral wall of the first mounting channel 111, the elastic member 40 is located between the first stepped surface 211 and the second stepped surface 112. The first end of the elastic member 40 abuts against the first stepped surface 211, and the second end of the elastic member 40 abuts against the second stepped surface 112, thereby facilitating the limiting of the elastic member 40 in the first direction and simplifying the elastic installation and positioning. Additionally, the second stepped surface 112 can also prevent the first electrode 20 from dislodging from the first mounting channel 111 when it moves towards the second electrode 30.

[0053] In some embodiments of this utility model, reference is made to Figures 4-9 The first electrode 20 includes a threaded first post 21 and a threaded second post 22. The first post 21 is installed in the first mounting channel 111. An elastic element 40 is sleeved on the outer periphery of the first post 21. The outer periphery of the first post 21 has a first stepped surface 211. Along the first direction and in a direction away from the second electrode 30, a portion of the first post 21 protrudes from the guide block 11 and is used to contact the plastic sleeve. A portion of the second post 22 is located in the third mounting channel 131 and is used to make conductive contact with the second electrode 30. By setting the first electrode 20 into two threaded parts, it is convenient to install the first electrode 20 to the guide block 11.

[0054] For example, during the assembly and testing of the fixture 100, the elastic element 40 can be sleeved on the outer periphery of the first pole post 21, and the first pole post 21, with the elastic element 40 sleeved on it, can be inserted from the side of the guide block 11 away from the insulating block 13 into the first mounting channel 111 of the guide block 11. When the second end of the elastic element 40 abuts against the second step surface 112, the first pole post 21 is installed in place. The second pole post 22 is threaded to the first pole post 21 to form the first electrode 20. The second electrode 30 is inserted from the side of the drive connecting block 12 away from the insulating block 13 into the second mounting channel 121 of the drive connecting block 12, connecting the guide block 11, the insulating block 13, and the drive connecting block 12. At the same time, a portion of the first electrode 20 and a portion of the second electrode 30 are accommodated in the third mounting channel 131 of the insulating block 13.

[0055] In some embodiments of this utility model, reference is made to Figures 4-9 The second electrode post 22 includes a contact section 221 and a connecting section 222 disposed along a first direction. The contact section 221 is located within the third mounting channel 131 and is used for conductive contact with the second electrode 30. The connecting section 222 is threadedly connected to the first electrode post 21. A third stepped surface 223 is formed between the contact section 221 and the connecting section 222. The third stepped surface 223 is located on the side of the guide block 11 near the insulating block 13. When the first electrode 20 is separated from the second electrode 30, the third stepped surface 223 is adapted to abut against the guide block 11 in the first direction. By providing a third stepped surface 223 on the second pole post 22, when the elastic member 40 drives the first electrode 20 to move away from the second electrode 30 to separate from the second electrode 30, when the first electrode 20 moves to the point where the third stepped surface 223 on the first pole post 21 abuts against the guide block 11, the movement of the first electrode 20 away from the second electrode 30 can be restricted. This limits the stroke of the first electrode 20 to a preset range and prevents the first electrode 20 from coming out of the first mounting channel 111 when it moves away from the second electrode 30.

[0056] In some embodiments of this utility model, reference is made to Figures 4-9 The second electrode 30 is threadedly connected to the inner peripheral wall of the second mounting channel 121. During the installation of the second electrode 30 into the second mounting channel 121 of the drive connecting block 12, the second electrode 30 can be inserted into the second mounting channel 121 from the side of the drive connecting block 12 opposite to the insulating block 13. The second electrode 30 can be rotated to thread it onto the inner peripheral wall of the second mounting channel 121. For example, a mating hole can be provided on the second electrode 30, allowing tools such as screwdrivers to be inserted into the mating hole for easy rotation and tightening, thus fixing the second electrode 30 within the second mounting channel 121.

[0057] In some embodiments of this utility model, reference is made to Figures 4-9 An insulating block 13 or a guide block 11 is provided with a first wire-passing hole 132. In this embodiment, the first wire-passing hole 132 is provided on the insulating block 13, and a second wire-passing hole 122 is provided on the drive connecting block 12. The first wire-passing hole 132 and the second wire-passing hole 122 are used to detect the wire harness passing through to connect with the first electrode 20 and the second electrode 30. For example, the detection wire harness includes a positive wire harness and a negative wire harness, the first electrode 20 is the positive electrode, and the second electrode 30 is the negative electrode. The positive wire harness passes through the first wire-passing hole 132 and connects to the first electrode 20. For example, the positive wire harness has a first plug-in end, which can be inserted into the first terminal 224 of the first electrode 20, thereby facilitating the connection and disconnection of the positive wire harness from the first electrode 20. The negative electrode wire harness passes through the second wire hole 122 and is connected to the second electrode 30. For example, the negative electrode wire harness has a second plug end, which can be inserted into the second terminal 31 of the second electrode 30, thereby facilitating the connection and disconnection of the negative electrode wire harness and the second electrode 30.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An assembly and testing fixture, characterized in that, The assembly and testing fixture is used to inspect and install the plastic steel sleeve onto the front wheel of the stroller. The assembly and testing fixture includes: A fixture block for connection to a drive mechanism; A detection component is mounted on the fixture block and includes a first electrode and a second electrode arranged along a first direction, wherein one of the first electrode and the second electrode is a positive electrode and the other is a negative electrode, and the first electrode is used to contact the plastic steel sleeve and is movable along the first direction; Specifically, when the first electrode is in contact with the plastic sleeve, the first electrode moves toward the direction of the second electrode to make conductive contact with the second electrode; when the first electrode is not in contact with the plastic sleeve, the first electrode separates from the second electrode.

2. The assembly and testing fixture according to claim 1, characterized in that, The detection component includes an elastic element that is elastically deformable in the first direction. The elastic element has a first end and a second end disposed along the first direction. The first end is connected to or abuts against the first electrode, and the second end is connected to or abuts against the fixture block. The elastic element is used to drive the first electrode to move in a direction away from the second electrode to separate it from the second electrode.

3. The assembly and testing fixture according to claim 2, characterized in that, The elastic element is a spring and is sleeved on the outer periphery of the first electrode.

4. The assembly and testing fixture according to claim 1, characterized in that, The detection component is detachably connected to the fixture block; And / or, the first electrode is provided with a first terminal, and the second electrode is provided with a second terminal, the first terminal and the second terminal being used to connect to the detection harness.

5. The assembly and testing fixture according to claim 1, characterized in that, The fixture block includes a drive connection block, an insulating block, and a guide block arranged sequentially along the first direction. The drive connection block and the guide block are both metal parts. The insulating block is connected between the drive connection block and the guide block. The first electrode is installed on the guide block, and the second electrode is installed on the drive connection block. The drive connection block is used to connect with the drive mechanism.

6. The assembly and testing fixture according to claim 5, characterized in that, The guide block is provided with a first mounting channel extending along the first direction, the first mounting channel passing through the opposite sides of the guide block along the first direction, the first electrode is mounted in the first mounting channel, and the drive connection block is provided with a second mounting channel, the second mounting channel passing through the opposite sides of the drive connection block along the first direction, the second electrode is mounted in the second mounting channel; The insulating block is provided with a third mounting channel, which connects the first mounting channel and the second mounting channel. Parts of the first electrode and parts of the second electrode are located in the third mounting channel. Along the first direction and in the direction away from the second electrode, part of the first electrode protrudes from the guide block.

7. The assembly and testing fixture according to claim 6, characterized in that, The detection component includes an elastic element that is elastically deformable in the first direction. The elastic element is sleeved on the outer periphery of the first electrode and has a first end and a second end disposed along the first direction. The outer peripheral wall of the first electrode has a first stepped surface, and the inner peripheral wall of the first mounting channel has a second stepped surface. The elastic element is located between the first stepped surface and the second stepped surface. The first end abuts against the first stepped surface, and the second end abuts against the second stepped surface. The elastic element is used to drive the first electrode to move in a direction away from the second electrode to separate it from the second electrode.

8. The assembly and testing fixture according to claim 7, characterized in that, The first electrode includes a first electrode post and a second electrode post connected by threads. The first electrode post is installed in the first mounting channel. The elastic element is sleeved on the outer periphery of the first electrode post. The outer periphery wall of the first electrode post forms the first stepped surface. Along the first direction and in the direction away from the second electrode, a portion of the first electrode post protrudes from the guide block and is used to contact the plastic sleeve. A portion of the second electrode post is located in the third mounting channel and is used to make conductive contact with the second electrode.

9. The assembly and testing fixture according to claim 8, characterized in that, The second electrode post includes a contact section and a connecting section disposed along the first direction. The contact section is located within the third mounting channel and is used for conductive contact with the second electrode. The connecting section is threadedly connected to the first electrode post. A third stepped surface is formed between the contact section and the connecting section. The third stepped surface is located on the side of the guide block near the insulating block. When the first electrode is separated from the second electrode, the third stepped surface is adapted to abut against the guide block in the first direction.

10. The assembly and testing fixture according to claim 6, characterized in that, The second electrode is threadedly connected to the inner circumferential wall of the second mounting channel; And / or, the insulating block or the guide block is provided with a first wire hole, and the drive connection block is provided with a second wire hole, the first wire hole and the second wire hole being used to detect the wire harness passing through to connect with the first electrode and the second electrode.

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