Automobile door lock detection device and detection method

Abstract

The application discloses a car door lock detection device and a detection method, and belongs to the technical field of detection devices. The detection device comprises a positioning device, a length detection device, an electrical detection device, a blanking device, a turnover device, a length detection docking device and an electrical detection docking device. The positioning device is installed on the turnover device. The turnover device is provided with a plurality of stations. The length detection docking device, the electrical detection docking device and the blanking device are arranged at the station matching positions of the turnover device. The length detection device detects the length data of the PIN needle by matching with the length detection docking device. The electrical detection device detects the electrical characteristics of the PIN needle by matching with the electrical detection docking device. The turnover device enables the car door lock to turnover between the length detection device and the electrical detection device, integrates the length detection and the electrical characteristic detection in the same device, and improves the detection efficiency.

Description

Technical Field

[0001] This invention belongs to the field of testing equipment technology, specifically to automotive door lock testing equipment and testing methods. Background Technology

[0002] Car door locks are electronic locks commonly used in automobiles and new energy electric vehicles. They contain PIN pins for signal transmission and connection. During the production process, the length and electrical characteristics of the PIN pins need to be tested.

[0003] Currently, the industry typically uses two independent testing devices to complete the aforementioned dimensional and electrical characteristic tests separately, which requires two loading, positioning, and unloading processes, resulting in low testing efficiency. Summary of the Invention

[0004] Purpose of the invention: To provide an automotive door lock testing device and method that can complete length and electrical characteristic testing in one loading and positioning process, thereby improving testing efficiency.

[0005] The technical solution of the present invention is as follows: the automobile door lock testing equipment includes: a positioning device, a length detection device, an electrical testing device, a material unloading device, a turnover device, a length detection docking device, and an electrical testing docking device.

[0006] The positioning device is installed on the turnover device, which has multiple workstations.

[0007] The length detection docking device, electrical testing docking device, and unloading device are positioned in conjunction with the workstation of the turnover device.

[0008] The length detection docking device is used to dock with the PIN pin of the car door lock. The length detection device detects the length data of the PIN pin by cooperating with the length detection docking device.

[0009] The electrical testing docking device is used to connect with the PIN pin of the car door lock. The electrical testing device detects the electrical characteristics of the PIN pin by cooperating with the electrical testing docking device.

[0010] In a further embodiment, the detection device also includes a marking device.

[0011] The marking device is located between the turnover device and the unloading device. The marking device is used to mark the corresponding car door lock. By marking the qualified car door lock, the marking device can reduce the confusion rate between qualified and unqualified car door locks.

[0012] In a further embodiment, the detection device further includes a visual inspection device.

[0013] The visual inspection device is located between the turnover device and the unloading device. The visual inspection device can detect whether the pin on the car door lock is installed backwards, and it can also detect whether other shape parameters of the car door lock are qualified.

[0014] In a further embodiment, the length detection docking device includes: a first displacement mechanism, a first docking seat, and a first docking pin.

[0015] The first docking seat is mounted on the first displacement mechanism, and the first docking pin is mounted on the first docking seat. The first displacement mechanism is used to drive the first docking seat to move along the extension direction of the corresponding PIN pin to the position where the first docking pin and the PIN pin are connected, so that the first docking pin and the first docking seat move relative to each other.

[0016] The length detection device obtains the length data of the PIN pin by detecting the length data of the first mating pin, enabling the first mating pin to connect with the PIN pin in the hole, and converting the length data of the PIN pin in the hole into the movement length data of the first mating pin. This solves the problem that existing length detection devices are difficult to insert into the hole to detect the length data of the PIN pin.

[0017] In a further embodiment, the length detection docking device further includes a reset structure, which is installed on the first docking seat. The reset structure is used to apply a force to the first docking pin in the direction of the PIN pin, so that the first docking seat can automatically reset to the initial position and prepare for the next docking operation.

[0018] In a further embodiment, the first mating seat is provided with a first boss, the shape of which matches the shape of the hole for the PIN pin in the car door lock, and the first boss and the hole in the car door lock are in a concave-convex fit.

[0019] The first mating pin is located in the first boss at one end, and the first mating pin extends from the first mating seat to the outside at the other end. The first boss engages with the hole of the car door lock to ensure the mating accuracy of the first mating pin and the PIN pin.

[0020] In a further embodiment, the electrical testing and docking device includes: a second displacement mechanism, a second docking seat, and a second docking pin.

[0021] The second docking seat is mounted on the second displacement mechanism, and the second docking pin is mounted on the second docking seat. The second displacement mechanism is used to drive the second docking seat to move along the extension direction of the corresponding PIN pin to the position where the second docking pin and the PIN pin are connected.

[0022] The electrical testing device is connected to the second mating pin to detect the electrical characteristics of the PIN pin.

[0023] In a further embodiment, each station on the turnover device is equipped with two sets of positioning devices, length detection docking devices, and electrical testing docking devices.

[0024] The two car door locks are a pair, and the two sets of positioning devices are used to position the pair of car door locks.

[0025] The two sets of length detection docking devices and electrical testing docking devices are used to dock with the PIN pins of a pair of car door locks.

[0026] In a further embodiment, each pair of car door locks is arranged parallel to each other along its length.

[0027] The feeding device includes: a three-axis displacement mechanism, two sets of material handling mechanisms, a good product channel and a bad product channel.

[0028] The two sets of material handling mechanisms are mounted on the three-axis displacement mechanism.

[0029] The good product channel has a first channel and a second channel, and the number of the first channels is at least twice the number of the second channels.

[0030] The first channel extends along the length of the car door lock, and the sum of the lengths of the first channel = N × the length of the car door lock + the first allowance length.

[0031] The second channel extends along the width of the car door lock, and the length of the second channel = N × car door lock width + second allowance length, N ≥ 2, where N is a positive integer. The ratio of the number of the first channel and the second channel can be adjusted according to the length-to-width ratio of the car door lock. Compared with the existing technology of continuously extending the first channel, the footprint of the detection equipment is optimized. Compared with the existing technology of driving one of the two sets of material picking mechanisms to rotate through a rotating mechanism, not only is the rotating mechanism reduced in terms of structure and cost, but also the rotating steps are reduced in terms of process, thus optimizing both structure and process.

[0032] The PIN detection method for car door locks includes: S1, placing the car door lock on the workstation of the turnover device, and positioning the car door lock on the workstation by the positioning device.

[0033] S2, the turnover device allows the car door lock on the workstation to rotate between the mating positions with the length detection docking device and the electrical measurement docking device.

[0034] S3. When the car door lock moves to the position where it engages with the length detection docking device, the length detection docking device engages with the PIN pin of the car door lock on the workstation, so that the length detection device can detect the length data of the PIN pin through the engagement with the length detection docking device.

[0035] When the car door lock moves to the position where it engages with the electrical testing docking device, the electrical testing docking device engages with the PIN pin of the car door lock at the workstation, allowing the electrical testing device to detect the electrical characteristics of the PIN pin through its engagement with the electrical testing docking device.

[0036] S4. The unloading device removes the car door lock from the turnover device station.

[0037] The beneficial effects of this invention are: by using a turnover device, the car door lock can be rotated between the length detection device and the electrical testing device, so that the length detection and electrical characteristic detection are integrated into the same device. After the loading is completed, the positioning, detection and unloading can be automated, which reduces the number of devices, the number of loading, positioning and unloading, and improves the detection efficiency. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall isometric structure of the present invention.

[0039] Figure 2 This is an isometric structural diagram of the turnover device and positioning device of the present invention.

[0040] Figure 3 This is an isometric structural diagram of the cooperation between the length detection device and the length detection docking device of the present invention.

[0041] Figure 4 This is a schematic diagram of the isometric structure of the length detection docking device of the present invention.

[0042] Figure 5 This is a cross-sectional view of the first docking seat, the first docking pin, and the reset structure of the present invention.

[0043] Figure 6 This is an isometric structural schematic diagram of the electrical measurement docking device of the present invention.

[0044] Figure 7 This is a bottom view structural schematic diagram of the length detection docking device and the electrical measurement docking device of the present invention.

[0045] Figure 8 This is an isometric structural diagram of the marking device and vision inspection device of the present invention.

[0046] Figure 9 This is an isometric structural diagram of the feeding device of the present invention.

[0047] The attached figures are labeled as follows: turnover device 1, length detection device 2, electrical testing device 3, unloading device 4, length detection docking device 5, first displacement mechanism 51, first docking seat 52, first boss 521, first docking pin 53, reference pin 54, reset structure 55, visual inspection device 6, positioning device 7, second displacement mechanism 81, second docking seat 82, marking power component 91, marking pin 92, three-axis displacement mechanism 41, material picking mechanism 42, first channel 43, second channel 44, defective channel 45. Detailed Implementation

[0048] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0049] This invention discloses an automotive door lock testing device and testing method, which is equipped with a PLC and other control devices. Its components such as motors, cylinders, solenoid valves, and sensors are connected to the control devices. The control devices control the operation of each component to realize the automated positioning, testing, and unloading of automotive door locks.

[0050] like Figure 1 and 2 The automotive door lock testing equipment shown includes: a positioning device 7, a length detection device 2, an electrical testing device 3, a material unloading device 4, a turnover device 1, a length detection docking device 5, an electrical testing docking device, a marking device, and a vision inspection device 6.

[0051] The positioning device 7 is installed on the turnover device 1, which has multiple workstations.

[0052] The length detection docking device 5, the electrical testing docking device, and the unloading device 4 are positioned in conjunction with the workstation of the turnover device 1.

[0053] The length detection docking device 5 is used to dock with the PIN pin of the car door lock. The length detection device 2 detects the length data of the PIN pin by cooperating with the length detection docking device 5.

[0054] The electrical testing docking device is used to connect with the PIN pin of the car door lock. The electrical testing device 3 detects the electrical characteristics of the PIN pin by cooperating with the electrical testing docking device.

[0055] The marking device is located between the turnover device 1 and the unloading device 4. The marking device is used to mark the corresponding car door locks, such as... Figure 8The marking device shown includes a marking power component 91 and a marking needle 92. A positioning device 7 is also provided at the corresponding position of the marking device. The marking power component 91 can be a cylinder or a cam mechanism, etc. In other embodiments, the marking device can also be a laser marking device, and is not limited thereto.

[0056] The visual inspection device 6 is positioned between the turnover device 1 and the unloading device 4. It can be configured to coordinate its inspection area with a workstation on the turnover device 1, or a workstation can be positioned between the turnover device 1 and the unloading device 4, allowing the visual inspection device 6 to coordinate with that workstation. Figure 8 The visual inspection device 6 is positioned to match the marking device. The visual inspection device 6 is a visual camera or other existing technology, which will not be described in detail here.

[0057] Regarding positioning device 7, such as Figure 2 The positioning device 7 shown includes a positioning seat and a cylinder mounted on the turnover device 1, and a pressure head mounted on the cylinder, such as... Figure 2 The positioning seat shown has contoured structures on both sides that cooperate with the car door lock. The car door lock can be fixed between the positioning seat and the pressure head through the cooperation of the positioning seat, cylinder and pressure head.

[0058] Regarding the length detection device 2 and the electrical testing device 3, in this embodiment, the length detection device 2 is a laser sensor that can measure the length of the first mating pin 53 after it is displaced by the PIN pin. It is in non-contact cooperation with the first mating pin 53. The electrical testing device 3 is an electrical testing instrument that can measure electrical characteristics such as resistance, withstand voltage, and continuity. The length detection device 2 and the electrical testing device 3 are existing technologies and are not limited thereto.

[0059] In this embodiment, the length detection device 2 can be installed on the detection displacement mechanism. The detection displacement mechanism drives the length detection device 2 to rotate among multiple first docking pins 53, so that one length detection device 2 can engage with the first docking pins 53 at different positions without contact. The detection displacement mechanism can be an electric cylinder or a two-axis displacement mechanism with two electric cylinders working together. When changing the position of the first docking pin 53, it is not necessary to adjust the position of the length detection device 2 by disassembly and assembly. The form of the detection displacement mechanism is not limited to this.

[0060] Regarding the turnover device 1, such as Figure 2 The turnover device 1 shown includes an indexing plate and a pneumatic-electric integrated slip ring to prevent the air pipes and wires of the cylinders and electronic devices on the indexing plate from getting tangled. In other embodiments, the turnover device 1 may also include a belt conveyor, a ring conveyor, or other mechanisms to enable the positioning device to rotate between the length detection docking device 5 and the electrical measurement docking device, and is not limited thereto.

[0061] Regarding the length detection docking device 5, such as Figure 3-5The length detection docking device 5 shown includes: a first displacement mechanism 51, a first docking seat 52, a first docking pin 53, a reference pin 54, and a reference spring.

[0062] The first docking seat 52 is installed on the first displacement mechanism 51. The first docking pin 53, the reference pin 54 and the reference spring are installed on the first docking seat 52. The first displacement mechanism 51 is used to drive the first docking seat 52 to move along the extension direction of the corresponding PIN pin to the position where the first docking pin 53 is connected to the PIN pin. During this process, the reference pin 54 is connected to the car door lock, so that the reference pin 54, the first docking pin 53 and the first docking seat 52 move relative to each other.

[0063] The length detection device 2 obtains the position data of the PIN pin by detecting the position data of the reference pin 54 and the first mating pin 53 and by comparing the position data of the reference pin 54 and the first mating pin 53. In other embodiments, the length data of the PIN pin can also be obtained by comparing the position data of the first mating pin 53 and the first mating seat 52, and is not limited thereto.

[0064] When the reference pin 54 is separated from the car door lock, the reference spring is used to drive the reference pin to reset.

[0065] For some PIN pins not located inside the hole, or where the hole containing the PIN pin is relatively shallow, both ends of the first mating pin 53 can extend from the first mating seat 52 to the outside, or as follows: Figure 4 As shown, the first docking seat 52 is provided with a first protrusion 521. The shape of the first protrusion 521 matches the shape of the hole for the PIN pin of the car door lock, and the first protrusion 521 is in concave-convex fit with the hole of the car door lock.

[0066] The first mating pin 53 is located at one end near the PIN pin within the first protrusion 521, and the other end of the first mating pin 53 away from the PIN pin extends from the first mating seat 52 to the outside.

[0067] For some first mating seats 52 whose shape and size can match the concave and convex of the hole, the end of the first mating pin 53 near the PIN pin can be directly set inside the first mating seat 52.

[0068] The number and position of the first displacement mechanism 51, the first docking seat 52 and the first docking pin 53 of each set of length detection docking devices 5 are matched with the number and position of the PIN pins of the car door lock. The first docking seat 52 and the first displacement mechanism 51 can be detachably connected, which makes it convenient to replace the corresponding first docking seat 52 and the first docking pin 53 according to the PIN pin.

[0069] In a further embodiment, the length detection docking device 5 further includes a reset structure 55, which is mounted on the first docking seat 52 and is used to apply a force to the first docking pin 53 to move in the direction of the PIN pin.

[0070] like Figure 5 The reset structure 55 shown includes a docking spring disposed between the first docking pin 53 and the first docking seat 52. The first docking seat 52 has a receiving cavity, and the first docking pin 53 has a boss and a docking rod. The docking rod is disposed on both sides of the boss. The receiving cavity houses the docking spring and the first docking pin 53. The receiving cavity is also used to guide the first docking pin 53. The docking spring is sleeved on the docking rod of the first docking pin. The docking spring is connected to the boss of the first docking seat 52 and the first docking pin 53. This allows the diameter of the PIN pin to be less than the diameter of the docking rod, and the diameter difference between the docking rod and the PIN pin to be ≤1mm. In other embodiments, the reset structure 55 can also be a cylinder that pushes the first docking pin 53 to reset from the end of the first docking pin 53 away from the PIN pin, as long as the first docking pin 53 can be automatically reset. This is not a limitation.

[0071] Regarding the electrical testing and docking device, the electrical testing and docking device includes: a second displacement mechanism 81, a second docking seat 82, and a second docking pin.

[0072] The second docking seat 82 is installed on the second displacement mechanism 81, and the second docking pin is installed on the second docking seat 82. The second displacement mechanism 81 is used to drive the second docking seat 82 and the second docking pin to the position where the second docking pin and the PIN pin are connected.

[0073] The electrical testing device 3 is connected to the second mating pin to test the electrical characteristics of the PIN pin.

[0074] The second docking seat 82 is provided with a second protrusion. The shape of the second protrusion matches the shape of the hole for the PIN pin of the car door lock. The second protrusion and the hole of the car door lock are in concave-convex fit. In this embodiment, the second docking pin is a probe.

[0075] The number and position of the second displacement mechanism 81, the second docking seat 82, and the second docking pin of each electrical testing docking device are matched with the number and position of the PIN pins of the car door lock. The second docking seat 82 and the second displacement mechanism 81 are detachably connected, which makes it convenient to replace the corresponding second docking pin according to the PIN pin.

[0076] like Figure 3 and 6The length detection docking device 5 and the electrical testing docking device shown are mounted on the same frame. The length detection docking device 5 and the electrical testing docking device include: a first displacement mechanism 51, a first docking pin 53, a second displacement mechanism 81 and a second docking pin along the vertical, longitudinal and transverse extension directions. The first displacement mechanism 51 and the second displacement mechanism 81 in the vertical direction are provided with a mounting frame. The first displacement mechanism 51 and the second displacement mechanism 81 in the longitudinal and transverse extension directions are mounted on the mounting frame.

[0077] like Figure 3 and 6 The vertical first displacement mechanism 51 and the second displacement mechanism 81 shown are electric cylinders, while the horizontal and vertical first displacement mechanism 51 and the second displacement mechanism 81 are pneumatic cylinders, but not limited to these.

[0078] The mounting frame is equipped with a guide shaft, and the turnover device 1 is equipped with a linear bearing. The mounting frame and the turnover device 1 are guided and cooperated through the guide shaft and the linear bearing, and the guiding structure is not limited to this.

[0079] like Figure 7 The first docking seat 52 of the length detection docking device 5 and the second docking seat 82 of the electrical testing docking device are symmetrically positioned.

[0080] In such Figure 2 In the embodiment shown, each station on the turnover device 1 is equipped with two sets of positioning devices 7, length detection docking devices 5, and electrical testing docking devices.

[0081] Two car door locks form a pair. Two sets of positioning devices 7 are used to position a pair of car door locks. Two sets of length detection docking devices 5 and electrical testing docking devices are used to dock with the PIN pins of a pair of car door locks. Each pair of car door locks is set parallel to each other along its length direction.

[0082] The feeding device 4 includes: a three-axis displacement mechanism 41, two sets of material handling mechanisms 42, a good product channel and a bad product channel 45.

[0083] Two sets of material handling mechanisms 42 are mounted on a three-axis displacement mechanism 41. The three-axis displacement mechanism 41 is existing technology, while the material handling mechanisms 42 can be existing technologies such as grippers or suction cups. Figure 9 The material handling mechanism 42 shown is a suction cup, but it is not limited to this.

[0084] The good product channel is provided with a first channel 43 and a second channel 44. The number of first channels 43 is at least twice the number of second channels 44. The first channel 43 and the second channel 44 are provided with a material box of the same volume at the end away from the three-axis displacement mechanism 41.

[0085] The first channel 43 extends along the length of the car door lock, and the sum of the lengths of the first channel 43 = N × the length of the car door lock + the first allowance length.

[0086] The second channel 44 extends along the width of the car door lock, and the length of the second channel 44 = N × car door lock width + second allowance length, N ≥ 2, where N is a positive integer. The first allowance length and the second allowance length can be adjusted as needed during the design. In this embodiment, the first allowance length < car door lock length and the second allowance length < car door lock width.

[0087] like Figure 9 The diagram shows two first channels 43 and one second channel 44.

[0088] The PIN detection method for car door locks includes: S1, placing the car door lock on the workstation of the turnover device 1, and positioning device 7 positioning the car door lock on the workstation.

[0089] S2, the turnover device 1 makes the car door lock on the workstation rotate between the length detection docking device 5 and the electrical measurement docking device.

[0090] S3. When the car door lock moves to the position where it engages with the length detection docking device 5, the length detection docking device 5 engages with the PIN pin of the car door lock at the workstation, so that the length detection device 2 detects the length data of the PIN pin through the engagement with the length detection docking device 5. In this embodiment, after the first docking pin 53 engages with the PIN pin and the reference pin 54 engages with the car door lock, the first docking seat 52 continues to move towards the PIN pin. The detection displacement mechanism drives the length detection device 2 to rotate among multiple first docking pins 53. The length detection device 2 obtains the position data of the PIN pin by detecting and comparing the position data of the reference pin 54 and the first docking pin 53 at each position corresponding to a set of first docking pins 53.

[0091] When the car door lock moves to the position where it engages with the electrical testing docking device, the electrical testing docking device engages with the PIN pin of the car door lock at the workstation, allowing the electrical testing device 3 to detect the electrical characteristics of the PIN pin through its engagement with the electrical testing docking device.

[0092] When the car door lock moves to a position that aligns with the vision inspection device 6, the vision inspection device 6 performs visual inspection on the car door lock.

[0093] S4, the unloading device 4 removes the car door lock from the turnover device 1 station.

[0094] S5. After the unloading device 4 takes out the car door lock, it can be placed in the position corresponding to the marking device. The vision inspection device 6 detects whether the pin on the car door lock is installed backwards.

[0095] S6. When the inspection of S3-S5 is qualified, the marking power component 91 of the marking device drives the marking needle 92 to mark the qualified car door lock, and then the unloading device 4 moves the qualified car door lock into the good product channel.

[0096] S7. If any of the tests in S3-S5 fails, the marking device will not mark the car door lock, and the unloading device 4 will move the qualified car door lock into the defective channel 45.

[0097] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. Car door lock testing equipment, including: Positioning device, length detection device, electrical testing device, and material unloading device; Its features include: a turnover device, a length detection docking device, and an electrical testing docking device; The positioning device is installed on the turnover device, which has multiple workstations. The length detection docking device, the electrical testing docking device, and the unloading device are located at the workstations that cooperate with the turnover device. The length detection docking device and the electrical testing docking device are mounted on the same frame and are symmetrically positioned. The length detection docking device is used to dock with the PIN pin of the car door lock. The length detection device detects the length data of the PIN pin by cooperating with the length detection docking device. The electrical testing docking device is used to connect with the PIN pin of the car door lock. The electrical testing device detects the electrical characteristics of the PIN pin by cooperating with the electrical testing docking device. Each station on the turnover device is equipped with two sets of positioning devices, length detection docking devices, and electrical testing docking devices. The two car door locks are a pair, and the two sets of positioning devices are used to position the pair of car door locks; The two sets of length detection docking devices and electrical testing docking devices are used to dock with a pair of PIN pins of a car door lock; Each pair of the car door locks is arranged parallel to each other along its length; The feeding device includes: a three-axis displacement mechanism, two sets of material handling mechanisms, a good product channel and a defective product channel; The two sets of material handling mechanisms are mounted on the three-axis displacement mechanism; The good product channel is provided with a first channel and a second channel. The ratio of the number of the first channel and the second channel is adjusted according to the length-to-width ratio of the car door lock, so that the number of the first channel is at least twice the number of the second channel. The ends of the first channel and the second channel away from the three-axis displacement mechanism are provided with material boxes of the same volume. The first channel extends along the length of the car door lock, and the sum of the lengths of the first channel = N × car door lock length + first allowance length, where the first allowance length < car door lock length; The second channel extends along the width of the car door lock, and the length of the second channel = N × car door lock width + second allowance length, the second allowance length < car door lock width, N ≥ 2, and N is a positive integer.

2. The automotive door lock testing equipment according to claim 1, characterized in that, Also includes: Marking device; The marking device is located between the turnover device and the unloading device, and is used to mark the corresponding car door lock.

3. The automotive door lock testing equipment according to claim 1, characterized in that, Also includes: Visual inspection device; The visual inspection device is located between the turnover device and the unloading device.

4. The automotive door lock testing equipment according to claim 1, characterized in that, The length detection docking device includes: a first displacement mechanism, a first docking seat, and a first docking pin; The first docking seat is mounted on the first displacement mechanism, and the first docking pin is mounted on the first docking seat. The first displacement mechanism is used to drive the first docking seat to move along the extension direction of the corresponding PIN pin to the position where the first docking pin and the PIN pin are connected, so that the first docking pin and the first docking seat move relative to each other. The length detection device obtains the length data of the PIN by detecting the length data of the first connecting pin.

5. The automotive door lock testing equipment according to claim 4, characterized in that, The length detection docking device further includes a reset structure, which is installed on the first docking seat and is used to apply a force to the first docking pin to move in the direction of the PIN pin.

6. The automotive door lock testing equipment according to claim 4, characterized in that, The first docking seat is provided with a first protrusion, the shape of which matches the shape of the hole for the PIN pin in the car door lock, and the first protrusion and the hole in the car door lock are in a concave-convex fit. The end of the first mating pin near the PIN pin is located inside the first protrusion, and the end of the first mating pin away from the PIN pin extends from the first mating seat to the outside.

7. The automotive door lock testing equipment according to claim 1, characterized in that, The electrical testing docking device includes: a second displacement mechanism, a second docking seat, and a second docking pin; The second docking seat is mounted on the second displacement mechanism, and the second docking pin is mounted on the second docking seat. The second displacement mechanism is used to drive the second docking seat to move along the extension direction of the corresponding PIN pin to the position where the second docking pin and the PIN pin are connected. The electrical testing device is connected to the second mating pin to detect the electrical characteristics of the PIN pin.

8. A PIN pin detection method using the automotive door lock detection equipment according to any one of claims 1-7, characterized in that, include: S1. Place the car door lock on the workstation of the turnover device, and the positioning device positions the car door lock on the workstation. S2. The turnover device allows the car door lock on the workstation to rotate between the positions where it is connected to the length detection docking device and the electrical measurement docking device. S3. When the car door lock moves to the position where it is engaged with the length detection docking device, the length detection docking device is engaged with the PIN pin of the car door lock on the workstation, so that the length detection device can detect the length data of the PIN pin through the engagement with the length detection docking device. When the car door lock moves to the position where it engages with the electrical testing docking device, the electrical testing docking device engages with the PIN pin of the car door lock at the workstation, allowing the electrical testing device to detect the electrical characteristics of the PIN pin through its engagement with the electrical testing docking device. S4. The unloading device removes the car door lock from the turnover device station.

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