Battery pack mounting hole detection tool

Abstract

The utility model discloses a kind of battery pack mounting hole detection tool, it is related to battery pack technical field.The battery pack mounting hole detection tool specifically includes: detection arm, connecting arm, positioning device, detection device and marking device, the connecting arm is rotatably connected with the detection arm, can make the detection arm close and away, the positioning device and the detection device are detachably installed on the detection arm, the marking device can pass through the detection device, and can rotate in the inside of the detection device relative to the detection device.The detection tool provided by the utility model can satisfy the bidirectional detection of mounting hole on vehicle body and power battery, simple operation, high detection efficiency, and it is convenient to carry, transport, store.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a tooling for detecting battery pack mounting holes. Background Technology

[0002] Currently, there are various types of battery swapping equipment, and the methods of fixing the power battery to the vehicle body also differ. For charging vehicles, the power battery is generally not removed after being connected to the vehicle body. However, the situation is quite different for battery swapping vehicles. Due to the need for battery swapping, there is a lot of repetitive assembly between the power battery and the vehicle body. Therefore, the dimensional accuracy requirements for the power battery mounting holes at the bottom of the vehicle body are relatively high. Currently, mounting holes are pre-drilled at the bottom of the vehicle body, and the female locking head of the power battery (the battery locking head has male and female heads) needs to be fixed in these holes. The positional accuracy of the female head installation directly affects the subsequent installation accuracy of the power battery. Once there is a deviation or displacement, the power battery will not be able to be installed, and in serious cases, it will cause a safety accident. The best way to detect deviations is currently to use a tape measure or a portable coordinate measuring machine. The former has poor accuracy, while the latter, although highly accurate, has a long testing cycle, which is not conducive to operation and affects troubleshooting efficiency. Utility Model Content

[0003] In view of this, the present invention provides a battery pack mounting hole inspection fixture, which can meet the bidirectional inspection of mounting holes on the vehicle body and power battery, and is simple to operate and has high inspection efficiency.

[0004] This utility model provides a battery pack mounting hole inspection fixture, including an inspection arm, a connecting arm, a positioning device, an inspection device, and a marking device. The connecting arm is rotatably connected to the inspection arm, allowing the inspection arm to move closer to and further away from the inspection arm. The positioning device and the inspection device are detachably mounted on the inspection arm. The marking device can pass through the inspection device and can rotate relative to the inspection device inside the inspection device.

[0005] Furthermore, when the connecting arm and the detection arm are perpendicular to each other, a reinforcing arm is also included, one end of which is detachably connected to the detection arm, and the other end of which is detachably connected to the connecting arm.

[0006] Furthermore, the detection arm is provided with a positioning hole and a detection hole. The positioning device is detachably mounted on the detection arm through the positioning hole, and the detection device is detachably mounted on the detection arm through the detection hole.

[0007] Furthermore, the positioning device includes a positioning pin, the detection device includes a first detection sleeve, and the marking device includes a first serrated pin. The positioning pin is installed in the positioning hole, the first detection sleeve is installed in the detection hole, and the first serrated pin can pass through the first detection sleeve from bottom to top and can rotate relative to the first detection sleeve inside the first detection sleeve.

[0008] Furthermore, the positioning device includes a positioning sleeve, the detection device includes a second detection bushing, and the marking device includes a second serrated pin. The positioning sleeve is installed in the positioning hole, the second detection bushing is installed in the detection hole, and the second serrated pin can pass through the second detection bushing from top to bottom and can rotate relative to the second detection bushing inside the second detection bushing.

[0009] Furthermore, the detection arm includes a first detection arm and a second detection arm, and the connecting arm includes a first connecting arm and a second connecting arm. One end of the first connecting arm is rotatably connected to the first detection arm via a first rotating device, and the other end of the first connecting arm is rotatably connected to one end of the second connecting arm via a second rotating device. The other end of the second connecting arm is rotatably connected to the second detection arm via the first rotating device.

[0010] Furthermore, a first mounting block and a second mounting block are protruding from the inner sides of the ends of the first detection arm and the second detection arm. The first mounting block and the second mounting block are arranged parallel to each other vertically, and there is a gap between the first mounting block and the second mounting block. A third mounting block is protruding from one end of the first connecting arm and the other end of the second connecting arm. The third mounting block is inserted into the gap. The first mounting block, the second mounting block, and the third mounting block are all provided with corresponding first mounting holes. The first rotating device is installed in the first mounting hole.

[0011] Furthermore, the first rotating device includes a first connecting shaft, a first bushing, and a first axle stop. The first bushing is inserted into the first mounting hole, the first connecting shaft is inserted into the first bushing, and the first axle stop is located at the bottom of the second mounting block and connected to the first connecting shaft.

[0012] Furthermore, a fourth mounting block and a fifth mounting block are protruding on the outer side of the other end of the first connecting arm. The fourth mounting block and the fifth mounting block are arranged parallel to each other vertically, and there is a gap between the fourth mounting block and the fifth mounting block. A sixth mounting block is protruding on the outer side of one end of the second connecting arm. The sixth mounting block is inserted into the gap. The fourth mounting block, the fifth mounting block, and the sixth mounting block are all provided with corresponding second mounting holes. The second rotating device is installed in the second mounting holes.

[0013] Furthermore, the second rotating device includes a second connecting shaft, a second bushing, and a second axle stop. The second bushing is inserted into the second mounting hole, the second connecting shaft is inserted into the second bushing, and the second axle stop is located at the bottom of the fifth mounting block and connected to the second connecting shaft.

[0014] Compared with existing technologies, this utility model has the following beneficial technical effects: This utility model provides a battery pack mounting hole inspection fixture. The fixture is designed to meet the bidirectional inspection of mounting holes on the vehicle body and the power battery. During inspection, by assembling different positioning devices, inspection devices and marking devices, the fixture can detect the position of the female connector of the power battery lock body on the vehicle body and the male connector of the power battery on the battery pack. In addition, the inspection arm and connecting arm of the inspection fixture can be rotatably connected, which makes the inspection fixture foldable, easy to carry, transport and store, convenient to operate and highly efficient in inspection. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a battery pack mounting hole inspection fixture provided by this utility model. Figure 1 .

[0016] Figure 2 A schematic diagram of the structure of a battery pack mounting hole inspection fixture provided by this utility model. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the structure of the first rotating device in this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the second rotating device in this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0021] Wherein: 10-Detection arm; 10a-First detection arm; 10b-Second detection arm; 11-Positioning hole; 12-Detection hole; 20-Connecting arm; 21-First connecting arm; 22-Second connecting arm; 30-Reinforcing arm; 41-Positioning pin; 42-Positioning sleeve; 51-First detection bushing; 52-Second detection bushing; 61-First marking pin; 62-Second marking pin; 70-First rotating device; 71-First connecting shaft; 72-First bushing; 73-First shaft stop; 80-Second rotating device; 81-Second connecting shaft; 82-Second bushing; 83-Second shaft stop; 91-First mounting block; 92-Second mounting block; 93-Third mounting block; 95-Fourth mounting block; 96-Fifth mounting block; 97-Sixth mounting block. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0023] In the description of this utility model, it should be noted that the orientation or positional relationship indicated in this description is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the parts or elements 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.

[0024] Please see Figure 1 This utility model provides a battery pack mounting hole inspection fixture, including an inspection arm 10, a connecting arm 20, a positioning device, an inspection device, and a marking device. The connecting arm 20 is rotatably connected to the inspection arm 10, allowing the inspection arm 10 to move closer and further away, making the entire fixture foldable for easy carrying, transportation, and storage. The positioning device and the inspection device are detachably mounted on the inspection arm 10. The positioning device is used for positioning the fixture, and the inspection device is used to check whether the mounting holes of the female battery lock body on the vehicle body and the male battery lock body on the battery pack are accurate. The marking device can pass through the inspection device and can rotate relative to the inspection device inside the inspection device. After the inspection device completes the inspection, the marking device can leave a mark on the female and male battery lock bodies. After marking, the fixture is removed, and the marking marks are measured and compared with the center of the mounting holes of the female and male battery lock bodies to confirm the deviation and make adjustments accordingly. The testing fixture provided by this utility model has a simple structure, is easy to assemble, carry, and test, and can meet the bidirectional testing of vehicle body and power battery. It is easy to operate and has high testing efficiency.

[0025] Furthermore, the detection fixture provided by this utility model has two detection arms 10, including a first detection arm 10a and a second detection arm 10b, which are arranged parallel to each other. A connecting arm 20 is arranged between the two detection arms 10, and there are also two connecting arms 20. The two ends of the two connecting arms 20 are rotatably connected to the two ends of the detection arms 10, respectively, so that the first detection arm 10a and the second detection arm 10b can continuously move closer and further away. When the first detection arm 10a and the second detection arm 10b continuously move closer together, it means that the detection fixture is retracted. When the first detection arm 10a and the second detection arm 10b continuously move further away until the detection arm 10 is perpendicular to the connecting arm 20, it means that the detection fixture is fully opened and can be used for detection work.

[0026] Furthermore, the testing fixture provided by this utility model also includes a reinforcing arm 30. When the connecting arm 20 and the testing arm 10 are rotated to be perpendicular to each other, that is, when the testing fixture is fully opened, the reinforcing arm 30 can be installed. Specifically, one end of the reinforcing arm 30 is detachably installed on the testing arm 10, and the other end of the reinforcing arm 30 is detachably installed on the connecting arm 20. The setting of the reinforcing arm 30 can improve the stability of the testing fixture and facilitate testing. After the testing is completed, when it is necessary to retract the testing fixture, both ends of the reinforcing arm 30 can be removed from the testing arm 10 and the connecting arm 20 respectively, and the fixture can be retracted. The assembly is simple and it is easy to carry and transport.

[0027] Specifically, each connecting arm 20 includes a first connecting arm 21 and a second connecting arm 22. One end of the first connecting arm 21 is rotatably connected to the first detection arm 10a via a first rotating device 70. The other end of the first connecting arm 21 is rotatably connected to one end of the second connecting arm 22 via a second rotating device 80. The other end of the second connecting arm 22 is rotatably connected to the second detection arm 10b via the first rotating device 70. The first rotating device 70 facilitates the movement between the first connecting arm 21 and the second connecting arm 22 and the first detection arm 10a and the second detection arm 10b. The second rotating device 80 facilitates the rotation between the first connecting arm 21 and the second connecting arm 22, allowing the first detection arm 10a and the second detection arm 10b to move closer and further apart, facilitating the retraction and opening of the detection fixture.

[0028] Please refer to the following: Figure 2The inner sides of the ends of the first detection arm 10a and the second detection arm 10b are provided with a first mounting block 91 and a second mounting block 92, which are arranged parallel vertically with a gap between them. A third mounting block 93 protrudes from one end of the first connecting arm 21 and the other end of the second connecting arm 22, and is inserted into the gap. Each of the first mounting block 91, the second mounting block 92, and the third mounting block 93 has a corresponding first mounting hole, and a first rotating device 70 is installed in the first mounting hole. The arrangement of the first mounting block 91, the second mounting block 92, and the third mounting block 93 facilitates rotation between the ends of the first detection arm 10a and the second detection arm 10b and the first connecting arm 21 and the second connecting arm 22. The first rotating device 70 not only connects the detection arm 10 and the connecting arm 20 but also further facilitates rotation between them.

[0029] Please refer to the following: Figure 3 The first rotating device 70 includes a first connecting shaft 71, a first bushing 72, and a first axle stop 73. The first bushing 72 is inserted into a first mounting hole, the first connecting shaft 71 is inserted into the first bushing 72, and the first axle stop 73 is located at the bottom of the second mounting block 92 and is screwed to the first connecting shaft 71. The first connecting shaft 71 and the first axle stop 73 enable the detection arm 10 and the connecting arm 20 to be connected. The first bushing 72 can rotate around the first connecting shaft 71, thereby allowing rotation between the detection arm 10 and the connecting arm 20.

[0030] Please refer to it again. Figure 2 The outer side of the other end of the first connecting arm 21 is provided with a fourth mounting block 95 and a fifth mounting block 96, which are arranged parallel vertically and have a gap between them. The outer side of one end of the second connecting arm 22 is provided with a sixth mounting block 94, which is inserted into the gap. Each of the fourth, fifth, and sixth mounting blocks has a corresponding second mounting hole, and the second rotating device 80 is installed in the second mounting hole. The arrangement of the fourth, fifth, and sixth mounting blocks 95, 96, and 94 facilitates the rotation between the ends of the first connecting arm 21 and the second connecting arm 22. The arrangement of the second rotating device 80 not only connects the first connecting arm 21 and the second connecting arm 22, but also further facilitates the rotation between the first connecting arm 21 and the second connecting arm 22.

[0031] Please refer to the following: Figure 4The second rotating device 50 includes a second connecting shaft 81, a second bushing 82, and a second axle stop 83. The second bushing 82 is inserted into a second mounting hole, and the second connecting shaft 81 is inserted into the second bushing 82. The second axle stop 83 is located at the bottom of the fifth mounting block 96 and is screwed to the second connecting shaft 81. The arrangement of the second connecting shaft 81 and the second axle stop 83 enables the first connecting arm 21 and the second connecting arm 22 to be connected. The second bushing 82 can rotate around the second connecting shaft 81, thereby allowing rotation between the first connecting arm 21 and the second connecting arm 22.

[0032] Please refer to it again. Figure 1 The detection arm 10 is provided with positioning holes 11 and detection holes 12. The positioning device is detachably mounted on the detection arm 10 through the positioning holes 11, and the detection device is detachably mounted on the detection arm 10 through the detection holes 12. It should be noted that the positioning holes 11 and detection holes 12 can be set according to the number of female battery lock heads on the vehicle body and male battery lock heads on the battery pack. In this embodiment, a total of 2 positioning holes 11 and 10 detection holes 12 are provided. The two positioning holes 11 are respectively provided on the first detection arm 11 and the second detection arm 12, while the 10 detection holes 12 are evenly provided on the first detection arm 11 and the second detection arm 12. That is, 5 detection holes 12 are provided on each of the first detection arm 11 and the second detection arm 12.

[0033] Please refer to the following: Figures 5-6 The testing fixture provided by this utility model can meet the bidirectional testing of the vehicle body and the power battery. Specifically, it can test whether the mounting holes of the female battery lock body on the vehicle body and the male battery lock body on the battery pack are accurate. During the testing process, it is only necessary to change different devices in the positioning device, the testing device, and the marking device.

[0034] Please see Figure 5If the position of the mounting hole on the battery lock body female on the vehicle body is to be checked for accuracy, the positioning device includes a positioning pin 41, the detection device includes a first detection bushing 51, and the marking device includes a first wire-pin 61. The positioning pin 41 is installed in the positioning hole 11 on the detection arm 10. Since the vehicle body also has positioning holes for the battery pack, the installed positioning pin 41 is used to cooperate with the positioning holes on the vehicle body to position the detection fixture. The first detection bushing 51 is installed in the detection hole 12 on the detection arm 10. Each first detection bushing 51 is in contact with the battery lock body female on the vehicle body. The first wire-pin 61 can pass through the first detection bushing 12 from bottom to top. The measuring sleeve 51 can rotate inside the first measuring sleeve 51 relative to the first measuring sleeve 51. During the rotation, it can leave a mark on the battery lock body female head. After the mark is marked, the tooling is removed, and the center of the mark is measured and compared with the center of the mounting hole on the battery lock body female head to confirm the deviation. Adjustment is made according to the deviation. Due to the long-term driving of the vehicle, battery replacement, vibration, and impact during battery replacement, the accuracy will have a certain deviation, and the position of the mounting hole will be offset. In this case, the measuring tooling can be detected and adjusted in time, or the equipment can be replaced to avoid safety accidents.

[0035] Please see Figure 6 If the position of the mounting hole on the male connector of the battery lock body on the battery pack is to be checked for accuracy, the positioning device includes a positioning sleeve 42, the detection device includes a second detection bushing 52, and the marking device includes a second wire pin 62. The positioning sleeve 42 is installed in the positioning hole 11 of the detection arm 10. Since the battery pack has a positioning pin that matches the positioning hole on the vehicle body, the positioning sleeve 42 is used to cooperate with the positioning pin on the battery pack to position the detection fixture. The second detection bushing 52 is installed in the detection hole 12 on the detection arm 10. Each second detection bushing 52 is in contact with the male connector of the battery lock body on the battery pack. The second wire pin... The 62 can pass through the second detection sleeve 52 from top to bottom and rotate relative to the second detection sleeve 52 inside the second detection sleeve 52. During the rotation, it can leave a mark on the male end of the battery lock body. After the mark is marked, the fixture is removed, and the center of the mark is measured and compared with the center of the mounting hole on the male end of the battery lock body to confirm the deviation. Adjustments are made according to the deviation. Due to the impact during battery replacement, the accuracy will have a certain deviation, and the position of the mounting hole will be offset. If this happens, the detection fixture can be adjusted in time or the equipment can be replaced to avoid safety accidents.

[0036] As described above, the present invention provides a battery pack mounting hole inspection fixture. The fixture is designed to meet the bidirectional inspection of the vehicle body and the power battery. During inspection, by assembling different positioning devices, inspection devices, and marking devices, the fixture can detect the position of the female connector of the power battery lock body on the vehicle body and the male connector of the power battery on the battery pack. In addition, the inspection arm 10 and the connecting arm 20 in the inspection fixture are rotatably connected, which makes the inspection fixture foldable, easy to carry, transport, and store, convenient to operate, and highly efficient in inspection.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tooling for inspecting battery pack mounting holes, characterized in that: It includes a detection arm (10), a connecting arm (20), a positioning device, a detection device, and a marking device. The connecting arm (20) is rotatably connected to the detection arm (10) and can move the detection arm (10) closer to or further away from it. The positioning device and the detection device are detachably mounted on the detection arm (10). The marking device can pass through the detection device and can rotate relative to the detection device inside the detection device.

2. The battery pack mounting hole inspection fixture according to claim 1, characterized in that: When the connecting arm (20) is perpendicular to the detection arm (10), a reinforcing arm (30) is also included. One end of the reinforcing arm (30) is detachably connected to the detection arm (10), and the other end of the reinforcing arm (30) is detachably connected to the connecting arm (20).

3. The battery pack mounting hole inspection fixture according to claim 1, characterized in that: The detection arm (10) is provided with a positioning hole (11) and a detection hole (12). The positioning device is detachably installed on the detection arm (10) through the positioning hole (11), and the detection device is detachably installed on the detection arm (10) through the detection hole (12).

4. The battery pack mounting hole inspection fixture according to claim 3, characterized in that: The positioning device includes a positioning pin (41), the detection device includes a first detection bushing (51), and the marking device includes a first stencil pin (61). The positioning pin (41) is installed in the positioning hole (11), and the first detection bushing (51) is installed in the detection hole (12). The first stencil pin (61) can pass through the first detection bushing (51) from bottom to top and can rotate relative to the first detection bushing (51) inside the first detection bushing (51).

5. The battery pack mounting hole inspection fixture according to claim 3, characterized in that: The positioning device includes a positioning sleeve (42), the detection device includes a second detection bushing (52), and the marking device includes a second semaphore pin (62). The positioning sleeve (42) is installed in the positioning hole (11), and the second detection bushing (52) is installed in the detection hole (12). The second semaphore pin (62) can pass through the second detection bushing (52) from top to bottom and can rotate relative to the second detection bushing (52) inside the second detection bushing (52).

6. The battery pack mounting hole inspection fixture according to claim 1, characterized in that: The detection arm (10) includes a first detection arm (10a) and a second detection arm (10b), and the connecting arm (20) includes a first connecting arm (21) and a second connecting arm (22). One end of the first connecting arm (21) is rotatably connected to the first detection arm (10a) through a first rotating device (70), and the other end of the first connecting arm (21) is rotatably connected to one end of the second connecting arm (22) through a second rotating device (80). The other end of the second connecting arm (22) is rotatably connected to the second detection arm (10b) through the first rotating device (70).

7. The battery pack mounting hole inspection fixture according to claim 6, characterized in that: The inner sides of the ends of the first detection arm (10a) and the second detection arm (10b) are provided with a first mounting block (91) and a second mounting block (92). The first mounting block (91) and the second mounting block (92) are arranged parallel to each other, and there is a gap between the first mounting block (91) and the second mounting block (92). One end of the first connecting arm (21) and the other end of the second connecting arm (22) are provided with a third mounting block (93). The third mounting block (93) is inserted into the gap. The first mounting block (91), the second mounting block (92) and the third mounting block (93) are all provided with corresponding first mounting holes. The first rotating device (70) is installed in the first mounting hole.

8. The battery pack mounting hole inspection fixture according to claim 7, characterized in that: The first rotating device (70) includes a first connecting shaft (71), a first bushing (72), and a first axle stop (73). The first bushing (72) is inserted into the first mounting hole (94), the first connecting shaft (71) is inserted into the first bushing (72), and the first axle stop (73) is located at the bottom of the second mounting block (92) and connected to the first connecting shaft (71).

9. The battery pack mounting hole inspection fixture according to claim 6, characterized in that: A fourth mounting block (95) and a fifth mounting block (96) are protruding on the outer side of the other end of the first connecting arm (21). The fourth mounting block (95) and the fifth mounting block (96) are arranged parallel to each other vertically, and there is a gap between the fourth mounting block (95) and the fifth mounting block (96). A sixth mounting block (97) is protruding on the outer side of one end of the second connecting arm (22). The sixth mounting block (97) is inserted into the gap. The fourth mounting block (95), the fifth mounting block (96), and the sixth mounting block (97) are all provided with corresponding second mounting holes. The second rotating device (80) is installed in the second mounting hole.

10. The battery pack mounting hole inspection fixture according to claim 9, characterized in that: The second rotating device (80) includes a second connecting shaft (81), a second bushing (82), and a second shaft stop (83). The second bushing (82) is inserted into the second mounting hole (98), the second connecting shaft (81) is inserted into the second bushing (82), and the second shaft stop (83) is located at the bottom of the fifth mounting block (96) and connected to the second connecting shaft (81).

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