Camera module test fixture

Abstract

The utility model discloses a camera module test fixture, which comprises a base and a cover plate, the base is provided with an ejector pin and a placing groove for placing a camera module, the cover plate is provided with a fixing block for fixing the camera module, and the cover plate covers the base through a driving mechanism so that the fixing block is matched with the placing groove. The driving mechanism comprises a horizontal driving motor for driving the cover plate to horizontally move and a lifting driving motor for driving the cover plate to lift. According to the technical scheme, on one hand, the ejector pins are stressed in the covering process of the cover plate, the problem that local ejector pins are abraded is avoided, and the problem that energization and testing cannot be carried out due to the fact that the ejector pins which are seriously abraded cannot make contact with a camera module connector or a golden finger after long-term use is solved; and on the other hand, the camera module is stressed in the covering process of the cover plate, the cover plate moves stably, the camera module is prevented from being damaged by pressing of the cover plate, and the appearance and shape integrity of the module are effectively protected.

Description

Technical Field

[0001] The utility model relates to the field of camera module testing, in particular to a camera module testing fixture. Background Art

[0002] A camera module primarily consists of a lens and a flexible printed circuit board (FPCB). The lens, in turn, consists of a lens, mounting base, base plate, filter, and sensor. The FPCB is a patterned printed circuit board made of a flexible substrate. It consists of an insulating base and a conductive layer, optionally with an adhesive between them. The lens is connected to the FPCB using an ACF (Adhesive Conductive Fiber). After manufacture, the camera module needs to be placed in a fixture and powered on to test whether various optical performance indicators meet requirements. Existing camera module test jigs consist of a hinged base and cover, with a spring between the base and cover. When the jig is open, the cover is held upright. Once the cover is closed, it is secured to the base, and the module's connector or gold finger contacts the metal pins in the jig. When the cover is pressed down, all the metal pins are unable to bear force simultaneously. The pins closest to the spring wear the most. After prolonged use, severely worn pins lose contact with the camera module connector or gold finger, preventing power on and testing.

[0003] For example, Chinese patent publication number CN208079281U, published on November 19, 2018, is titled "A New Camera Module Test Fixture", which includes a cover plate, a base plate, a rotating shaft, a return spring, a rotary damper and a lock. The cover plate and the base plate are hingedly connected on one side by a rotating shaft. The rotating shaft penetrates the cover plate and the base plate from the outside to the inside. A return spring is installed at the center of the rotating shaft. One end of the return spring contacts the cover plate; the other end contacts the base plate. Damper mounting positions are symmetrically provided on the left and right sides of the base plate. Damper fixing columns are provided on the side of the damper mounting position. The rotary damper is installed in the damper mounting position through the damper fixing column. The output shaft of the rotary damper is inserted into the cover plate to control the smooth movement of the cover plate. A lock is installed in the front of the base plate, and the cover plate is provided with a lock groove corresponding to the lock position. The rotary dampers on the left and right sides of the base plate effectively control the closing or opening speed of the cover plate, so that the cover plate moves smoothly, avoiding the cover plate's kinetic energy from being too large to damage the camera module, and effectively protecting the module's appearance and shape integrity.

[0004] The disadvantage of the existing patent is that when the cover of the existing camera module test fixture is pressed down, all the pins cannot be subjected to force at the same time, and the local pins are more severely worn. After long-term use, the severely worn pins cannot contact the camera module connector or gold fingers, resulting in failure to power on and test. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the existing camera module test fixture, all the ejector pins cannot be subjected to force at the same time during the cover pressing process, and the local ejector pins are more severely worn, resulting in the inability to power on and test. A camera module test fixture is provided, which can simultaneously apply force to the ejector pins and reduce the local wear of the ejector pins.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A camera module test jig includes a base and a cover plate. The base is provided with an ejector pin and a placement slot for placing the camera module. The cover plate is provided with a fixed block for fixing the camera module. The cover plate is covered on the base by a driving mechanism so that the fixed block and the placement slot cooperate. The driving mechanism includes a horizontal driving motor for driving the cover plate to move horizontally and a lifting driving motor for driving the cover plate to move up and down. The camera module test jig described in this technical solution is used to power on and test the camera module. The base is provided with a vertical ejector pin and a placement slot for placing the camera module. The cover plate is provided with a fixed block for fixing the camera module. The camera module is placed in the placement slot. The driving mechanism drives the cover plate to cover the bottom plate so that the fixed block presses the camera module vertically into the placement slot, and the connector or gold finger of the camera module is vertically connected to the ejector pin and powered on. On the one hand, this technical solution enables the ejector pins to be subjected to force simultaneously during the closing process of the cover, thereby avoiding wear problems on local ejector pins and preventing the ejector pins from being severely worn after long-term use from being unable to contact the camera module connector or gold fingers, resulting in failure to power on and test; on the other hand, the camera module is subjected to force simultaneously during the closing process of the cover, and the cover moves smoothly, thereby avoiding damage to the camera module by the cover, and effectively protecting the appearance and shape integrity of the module.

[0008] Preferably, a guide plate is provided on the outside of the base, the guide plate having a guide groove formed thereon, and a guide member is provided on the side wall of the cover plate to slideably engage with the guide groove, wherein the guide groove includes a horizontal guide groove and a vertical guide groove. The guide groove on the guide plate limits the range of movement of the drive mechanism. The horizontal guide groove limits the horizontal movement distance of the cover plate, and the vertical guide groove limits the vertical movement distance of the cover plate.

[0009] Preferably, there are two guide plates, one located on each side of the base, and two guide members, one located on each side of the cover, with each guide member corresponding to each guide plate. The two guide plates ensure smooth operation of the cover.

[0010] Preferably, the upper end of the vertical guide groove is connected to the end of the horizontal guide groove facing the ejector pin, so that the cover plate is first moved horizontally to the top of the base and then vertically covered on the base downward.

[0011] Preferably, the inner walls of the connection between the horizontal guide groove and the vertical guide groove are connected via an arcuate surface, which prevents the guide member from being worn and damaged when sliding in the guide groove.

[0012] Preferably, the placement grooves and ejector pins are distributed along the horizontal movement direction of the cover plate, and the horizontal guide grooves extend along the horizontal movement direction of the cover plate.

[0013] Preferably, the base is provided with two first limiting steps, and the cover is provided with two second limiting steps. The two first limiting steps are distributed along the horizontal movement direction of the cover, and the ejector pin and placement slot are located between the two first limiting steps. The cover covers the base so that the first limiting steps and the second limiting steps correspond one to one. The first limiting steps and the second limiting steps are used to cooperate with the camera module to prevent the camera module from being damaged by pressure.

[0014] Preferably, a buckle is rotatably mounted on the base, and a buckle groove is provided on the cover, with the buckle and the buckle groove interlocking. When the cover is placed on the base, the buckle engages with the buckle groove, ensuring that the cover is completely covered on the base. Preferably, a pressure sensor or infrared sensor is provided within the buckle groove. Upon detecting the buckle, the sensor deactivates the drive mechanism, preventing accidental activation during camera module testing. This also improves the accuracy of the cover-base connection.

[0015] Preferably, the buckles are located at both ends of the base along the horizontal movement direction of the cover. The cover is provided with two buckle grooves corresponding to the buckles one by one, and a clearance opening is provided on the cover, one buckle groove is located in the clearance opening, and the other buckle groove is located at the end of the cover. One buckle passes through the cover and is buckled with the buckle groove in the clearance opening, and the other buckle is buckled with the buckle groove at the end of the cover.

[0016] Preferably, it further includes a bottom plate, and the base, guide plate and driving mechanism are all arranged on the bottom plate.

[0017] Therefore, the utility model has the following beneficial effects: on the one hand, the ejector pins are simultaneously stressed during the closing process of the cover, thereby avoiding the problem of wear of local ejector pins and the problem that the severely worn ejector pins cannot contact the camera module connector or gold fingers after long-term use, resulting in the inability to power on and test; on the other hand, the camera module is simultaneously stressed during the closing process of the cover, and the cover moves smoothly, thereby avoiding the cover from damaging the camera module and effectively protecting the appearance and shape integrity of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the second embodiment of the present utility model in the open state.

[0019] Figure 2 This is a structural diagram of the closed state of the second embodiment of the present invention.

[0020] Figure 3 This is a structural diagram of the cover plate in the second embodiment of the present utility model.

[0021] Figure 4 This is a structural diagram of the second embodiment of the present invention without the cover plate.

[0022] Figure 5 This is a structural diagram of the third embodiment of the present invention.

[0023] As shown in the picture:

[0024] Base 1, ejector pin 1.1, placement slot 1.2, first limiting step 1.3,

[0025] Cover plate 2, fixing block 2.1, guide piece 2.2, second limiting step 2.3, buckle groove 2.4,

[0026] Horizontal drive motor 3, lifting drive motor 4,

[0027] Guide plate 5, guide groove 5.1, horizontal guide groove 5.1.1, vertical guide groove 5.1.2, curved surface 5.1.3,

[0028] Buckle 6, bottom plate 7. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the technical solution of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Embodiment 1, a camera module test fixture, includes a base 1 and a cover 2, the base 1 is provided with a pin 1.1 and a placement slot 1.2 for placing the camera module, the cover 2 is provided with a fixing block 2.1 for fixing the camera module, the cover 2 is covered on the base 1 through a driving mechanism so that the fixing block 2.1 and the placement slot 1.2 cooperate, the driving mechanism includes a horizontal driving motor 3 for driving the cover 2 to move horizontally and a lifting driving motor 4 for driving the cover 2 to move up and down.

[0031] The camera module is mainly composed of a lens part and an FPCB board part. The lens is composed of a lens, a fixing seat, a substrate, a filter, and a sensor. The FPCB board is a printed circuit board with a pattern made of a flexible substrate. It is composed of an insulating substrate and a conductive layer. There may be an adhesive between the insulating substrate and the conductive layer. The lens part is connected to the FPCB board via ACF conductive glue. After the camera module is manufactured, it needs to be placed in a fixed fixture and powered on to test whether the various optical performance indicators meet the requirements. The existing camera module test fixture is composed of a base plate 7 and a cover plate 2 that are hinged to each other. There is a spring between the base plate 7 and the cover plate 2 of the fixture. When the fixture is opened, the cover plate 2 is in an upright state. After the cover plate 2 is covered, it is fixed to the base plate 7. At the same time, the connector or gold finger of the module is in contact with the metal pin 1.1 in the fixture. When the cover 2 of the camera module test fixture is pressed down, all the metal pins 1.1 cannot be subjected to force at the same time. The metal pins 1.1 closer to the spring are more severely worn. After long-term use, the severely worn metal pins 1.1 cannot contact the camera module connector or gold fingers, resulting in failure to power on and test.

[0032] In order to solve the problem that in the existing camera module test fixture, when the cover plate 2 is pressed down, all the ejector pins 1.1 cannot be subjected to force at the same time, and the local ejector pins 1.1 are more seriously worn, resulting in the inability to power on and test, a camera module test fixture is provided, which can simultaneously apply force to the ejector pins 1.1 and reduce the local wear of the ejector pins 1.1.

[0033] A camera module test fixture in the above embodiment is used to power on and test the camera module. A vertical ejector pin 1.1 and a placement slot 1.2 for placing the camera module are provided on the base 1, and a fixing block 2.1 for fixing the camera module is provided on the cover 2. The camera module is placed in the placement slot 1.2. The driving mechanism drives the cover 2 to cover the bottom plate 7 so that the fixing block 2.1 presses the camera module vertically in the placement slot 1.2, and the connector or gold finger of the camera module is vertically connected to the ejector pin 1.1 and powered on. On the one hand, this technical solution enables the ejector pin 1.1 to be subjected to force at the same time during the covering process of the cover 2, thereby avoiding the problem of wear of the local ejector pin 1.1 and avoiding the problem that the ejector pin 1.1 that is severely worn after long-term use cannot contact the camera module connector or gold finger, resulting in the inability to power on and test; on the other hand, the camera module is subjected to force at the same time during the covering process of the cover 2, and the cover 2 moves smoothly, thereby avoiding the cover 2 from damaging the camera module, and effectively protecting the appearance and shape integrity of the module.

[0034] The cover plate 2 and base 1 are further optimized. Base 1 is provided with two first limiting steps 1.3, and cover 2 is provided with two second limiting steps 2.3. The two first limiting steps 1.3 are distributed along the horizontal movement direction of the cover plate 2. The ejector pin 1.1 and placement slot 1.2 are located between the two first limiting steps 1.3. The cover plate 2 covers the base 1 so that the first limiting steps 1.3 and the second limiting steps 2.3 correspond one-to-one. The first limiting steps 1.3 and the second limiting steps 2.3 are used to cooperate with the camera module to prevent pressure damage to the camera module.

[0035] Furthermore, it also includes a bottom plate 7, and the base 1, the guide plate 5 and the driving mechanism are all arranged on the bottom plate 7.

[0036] Example 2, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The camera module test fixture shown includes a base 1 and a cover plate 2. The base 1 is provided with a pin 1.1 and a placement slot 1.2 for the camera module. The cover plate 2 is provided with a fixing block 2.1 for securing the camera module. The cover plate 2 is attached to the base 1 via a drive mechanism to mate the fixing block 2.1 with the placement slot 1.2. The drive mechanism includes a horizontal drive motor 3 for driving the horizontal movement of the cover plate 2 and a lift drive motor 4 for driving the cover plate 2 up and down. A guide plate 5 is provided on the outside of the base 1. The guide plate 5 is provided with horizontal and vertical guide grooves 5.1.2.1. The side walls of the cover plate 2 are provided with guide members 2.2 that slidably engage with the horizontal and vertical guide grooves 5.1.2.1. The horizontal and vertical guide grooves 5.1.2.1 include horizontal and vertical guide grooves 5.1.2.1. The horizontal and vertical guide grooves 5.1.2.1 on the guide plate 5 limit the range of movement of the drive mechanism. The horizontal and vertical guide grooves 5.1.2.1 limit the horizontal movement distance of the cover plate 2, and the vertical and horizontal guide grooves 5.1.2.1 limit the vertical movement distance of the cover plate 2.

[0037] Further optimize the guide plate 5, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, there are two guide plates 5, one on each side of the base 1, and two guide members 2.2, one on each side of the cover 2. There is a one-to-one correspondence between the guide members 2.2 and the guide plates 5. The two guide plates 5 ensure smooth operation of the cover 2.

[0038] Further optimize the horizontal vertical guide groove 5.1.2.1, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the upper end of the vertical guide groove 5.1.2.1 is connected to the end of the horizontal guide groove 5.1.2.1 facing the ejector pin 1.1, so that the cover plate 2 is first moved horizontally to the top of the base 1 and then vertically covered on the base 1 downward.

[0039] Further optimize the horizontal vertical guide groove 5.1.2.1, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the inner walls of the connection between the horizontal vertical guide groove 5.1.2.1 and the vertical horizontal vertical guide groove 5.1.2.1 are connected through an arcuate surface 5.1.3. The arcuate surface 5.1.3 prevents the guide member 2.2 from being worn and damaged when sliding in the horizontal vertical guide groove 5.1.2.1.

[0040] Further, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the placement grooves 1.2 and the ejector pins 1.1 are distributed along the horizontal movement direction of the cover plate 2, and the horizontal vertical guide grooves 5.1.2.1 extend along the horizontal movement direction of the cover plate 2.

[0041] Further optimize the cover 2 and the base 1, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the base 1 is provided with two first limiting steps 1.3, and the cover 2 is provided with two second limiting steps 2.3. The two first limiting steps 1.3 are distributed along the horizontal movement direction of the cover 2. The ejector pin 1.1 and the placement groove 1.2 are located between the two first limiting steps 1.3. The cover 2 covers the base 1 so that the first limiting steps 1.3 and the second limiting steps 2.3 correspond one to one. The first limiting steps 1.3 and the second limiting steps 2.3 are used to cooperate with the camera module to prevent the camera module from being damaged by pressure.

[0042] Further, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, it also includes a bottom plate 7, and the base 1, the guide plate 5 and the driving mechanism are all arranged on the bottom plate 7.

[0043] In order to solve the problem that in the existing camera module test fixture, when the cover plate 2 is pressed down, all the ejector pins 1.1 cannot be stressed at the same time, and the local ejector pins 1.1 are more severely worn, resulting in the inability to power on and test, a camera module test fixture is provided in which the ejector pins 1.1 are stressed at the same time and the local wear of the ejector pins 1.1 is reduced. On the one hand, the above embodiment allows the ejector pins 1.1 to be stressed at the same time during the closing process of the cover plate 2, thereby avoiding the wear problem of local ejector pins 1.1 and the problem that the ejector pins 1.1 that are severely worn after long-term use cannot contact with the camera module connector or gold finger, resulting in the inability to power on and test; on the other hand, the camera module is stressed at the same time during the closing process of the cover plate 2, and the cover plate 2 moves smoothly, thereby avoiding the cover plate 2 from damaging the camera module, and effectively protecting the appearance and shape integrity of the module.

[0044] Example 3, as Figure 5 The camera module test fixture shown includes a base 1 and a cover 2. The base 1 is provided with a pin 1.1 and a placement slot 1.2 for placing the camera module. The cover 2 is provided with a fixing block 2.1 for fixing the camera module. The cover 2 is covered on the base 1 by a driving mechanism so that the fixing block 2.1 and the placement slot 1.2 cooperate. The driving mechanism includes a horizontal driving motor 3 that drives the cover 2 to move horizontally and a lifting driving motor 4 that drives the cover 2 to move up and down. A buckle 6 is rotatably provided on the base 1, and a buckle slot 2.4 is provided on the cover 2. The buckle 6 and the buckle slot 2.4 are buckled with each other. After the cover 2 is covered on the base 1, the buckle 6 is buckled with the buckle slot 2.4, so that the cover 2 is completely covered on the base 1. Furthermore, a pressure sensor or an infrared sensor is provided in the buckle slot 2.4. After the sensor detects the buckle 6, the driving mechanism is turned off to prevent accidental opening during the camera module detection process. At the same time, the covering accuracy of the cover 2 and the base 1 is improved.

[0045] Further optimize the buckle 6 and the buckle slot 2.4, such as Figure 5 As shown, the buckles 6 are located at both ends of the base 1 along the horizontal movement direction of the cover plate 2. The cover plate 2 is provided with two buckle grooves 2.4 corresponding one to each buckle 6. The cover plate 2 is provided with an escape opening, one of the buckle grooves 2.4 being located within the escape opening, and the other buckle groove 2.4 being located at the end of the cover plate 2. One buckle 6 passes through the cover plate 2 and engages with the buckle groove 2.4 within the escape opening, while the other buckle 6 engages with the buckle groove 2.4 at the end of the cover plate 2.

[0046] Furthermore, a guide plate 5 is provided on the outside of the base 1, and a horizontal and vertical guide groove 5.1.2.1 is provided on the guide plate 5. A guide member 2.2 is provided on the side wall of the cover plate 2, and the horizontal and vertical guide groove 5.1.2.1 is slidably engaged with the horizontal and vertical guide grooves 5.1.2.1. The horizontal and vertical guide grooves 5.1.2.1 include a horizontal guide groove 5.1.2.1 and a vertical guide groove 5.1.2.1. The horizontal and vertical guide grooves 5.1.2.1 on the guide plate 5 limit the range of movement of the drive mechanism. The horizontal guide grooves 5.1.2.1 limit the horizontal movement distance of the cover plate 2, while the vertical guide grooves 5.1.2.1 limit the vertical movement distance of the cover plate 2.

[0047] The guide plates 5 are further optimized. Two guide plates 5 are provided, one on each side of the base 1. Two guide members 2.2 are provided, one on each side of the cover 2. There is a one-to-one correspondence between the guide members 2.2 and the guide plates 5. The two guide plates 5 ensure smooth operation of the cover 2.

[0048] The horizontal vertical guide groove 5.1.2.1 is further optimized, and the upper end of the vertical horizontal guide groove 5.1.2.1 is connected to the end of the horizontal horizontal vertical guide groove 5.1.2.1 facing the ejector pin 1.1, so that the cover plate 2 is first moved horizontally to the top of the base 1 and then vertically downwardly covered on the base 1.

[0049] The horizontal vertical guide groove 5.1.2.1 is further optimized, and the inner wall of the connection between the horizontal horizontal vertical guide groove 5.1.2.1 and the vertical horizontal vertical guide groove 5.1.2.1 is connected through a curved surface 5.1.3. The curved surface 5.1.3 prevents the guide member 2.2 from being worn and damaged when sliding in the horizontal vertical guide groove 5.1.2.1.

[0050] Further, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, the placement grooves 1.2 and the ejector pins 1.1 are distributed along the horizontal movement direction of the cover plate 2, and the horizontal vertical guide grooves 5.1.2.1 extend along the horizontal movement direction of the cover plate 2.

[0051] The cover plate 2 and base 1 are further optimized. Base 1 is provided with two first limiting steps 1.3, and cover 2 is provided with two second limiting steps 2.3. The two first limiting steps 1.3 are distributed along the horizontal movement direction of the cover plate 2. The ejector pin 1.1 and placement slot 1.2 are located between the two first limiting steps 1.3. The cover plate 2 covers the base 1 so that the first limiting steps 1.3 and the second limiting steps 2.3 correspond one-to-one. The first limiting steps 1.3 and the second limiting steps 2.3 are used to cooperate with the camera module to prevent pressure damage to the camera module.

[0052] Furthermore, it also includes a bottom plate 7, and the base 1, the guide plate 5 and the driving mechanism are all arranged on the bottom plate 7.

[0053] In order to solve the problem that in the existing camera module test fixture, when the cover plate 2 is pressed down, all the ejector pins 1.1 cannot be stressed at the same time, and the local ejector pins 1.1 are more severely worn, resulting in the inability to power on and test, a camera module test fixture is provided in which the ejector pins 1.1 are stressed at the same time and the local wear of the ejector pins 1.1 is reduced. On the one hand, the above embodiment allows the ejector pins 1.1 to be stressed at the same time during the closing process of the cover plate 2, thereby avoiding the wear problem of local ejector pins 1.1 and the problem that the ejector pins 1.1 that are severely worn after long-term use cannot contact with the camera module connector or gold finger, resulting in the inability to power on and test; on the other hand, the camera module is stressed at the same time during the closing process of the cover plate 2, and the cover plate 2 moves smoothly, thereby avoiding the cover plate 2 from damaging the camera module, and effectively protecting the appearance and shape integrity of the module.

[0054] The specific embodiments described above are only preferred implementations of the present invention and are not intended to limit the specific scope of implementation of the present invention. All equivalent changes made to the shape and structure of the present invention should be included in the scope of protection of the present invention.

Claims

1. A camera module test fixture, characterized in that: It includes a base and a cover plate. The base is provided with a pin and a placement slot for placing the camera module. The cover plate is provided with a fixing block for fixing the camera module. The cover plate is covered on the base through a driving mechanism so that the fixing block and the placement slot are matched. The driving mechanism includes a horizontal driving motor for driving the cover plate to move horizontally and a lifting driving motor for driving the cover plate to move up and down.

2. A camera module test fixture according to claim 1, characterized in that: A guide plate is provided on the outside of the base, a guide groove is provided on the guide plate, and a guide piece that slides with the guide groove is provided on the side wall of the cover plate, and the guide groove includes a horizontal guide groove and a vertical guide groove.

3. A camera module test fixture according to claim 2, characterized in that: There are two guide plates, which are respectively located on both sides of the base; there are two guide members, which are respectively located on both sides of the cover plate; and the guide members correspond to the guide plates one by one.

4. A camera module test fixture according to claim 2 or 3, characterized in that: The upper end of the vertical guide groove is communicated with an end of the horizontal guide groove facing the ejector pin.

5. A camera module test fixture according to claim 4, characterized in that: The inner walls of the connection between the horizontal guide groove and the vertical guide groove are connected through an arc surface.

6. A camera module test fixture according to claim 2 or 3, characterized in that: The placement grooves and ejector pins are distributed along the horizontal moving direction of the cover plate, and the horizontal guide grooves extend along the horizontal moving direction of the cover plate.

7. A camera module test fixture according to claim 1, 2 or 3, characterized in that: The base is provided with two first limit steps, and the cover is provided with two second limit steps. The two first limit steps are distributed along the horizontal movement direction of the cover. The ejector pin and the placement groove are located between the two first limit steps. The cover covers the base so that the first limit steps and the second limit steps correspond one to one.

8. A camera module test fixture according to claim 1, 2 or 3, characterized in that: A buckle is rotatably provided on the base, and a buckle groove is provided on the cover plate, and the buckle and the buckle groove are buckled with each other.

9. The camera module test fixture according to claim 8, characterized in that: The buckles are located at two ends of the base along the horizontal movement direction of the cover plate.

10. A camera module test fixture according to claim 1, 2 or 3, characterized in that: It also includes a bottom plate, on which the base, guide plate and driving mechanism are all arranged.

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