CN219372501U - Pressure testing device - Google Patents

Abstract

The utility model relates to a pressure testing device, which comprises a base, a positioning mechanism, a pressure measuring instrument and a pressure applying assembly, wherein the positioning mechanism is arranged on the base; the positioning mechanism is provided with a clamping part for clamping the camera module to be tested; the pressure measuring instrument is provided with a measuring part facing the clamping part and is used for recording the bearing pressure value of the camera module to be tested; the pressure application assembly is arranged on the base and connected with the pressure measuring instrument, the pressure application assembly is used for applying pressure to the pressure measuring instrument and comprises an adjusting piece and a spring, the adjusting piece is movably arranged on the base, two ends of the spring are respectively connected with the pressure measuring instrument and the adjusting piece, and the pressure measuring instrument can slide towards the clamping part under the action of the spring. According to the pressure testing device, the compression amount of the spring is controllably adjusted through the adjusting piece, so that the force of the pressure measuring instrument on the camera module is finer, the performance of the camera module under a specified load can be accurately tested, the measuring precision is high, the testing range is wide, the requirement on manual skills is low, and the testing efficiency is high.

Description

Pressure testing device

Technical Field

The utility model relates to the technical field of camera modules, in particular to a pressure testing device.

Background

In recent years, camera modules have been widely used in various fields such as medical treatment, security, industrial production, life, and the like. When the camera module is assembled to the whole machine, the camera module can be subjected to pressure in all directions, so that the imaging effect and the function of the camera module are affected, and therefore, the camera module is required to be tested under different pressures after the camera module is assembled. In the prior art, a common driving piece directly drives the pressure measuring instrument to be abutted with the camera module. But the adjustability of the driving piece is poor, if the load is too large, the camera module is easy to damage.

Disclosure of Invention

The aim of the embodiment of the utility model is that: the pressure testing device is simple in structure and high in measurement accuracy.

To achieve the purpose, the embodiment of the utility model adopts the following technical scheme:

the pressure testing device comprises a base, a positioning mechanism, a pressure measuring instrument and a pressure applying assembly; the positioning mechanism is arranged on the base, and a clamping part for clamping the camera module to be tested is arranged on the positioning mechanism; the pressure measuring instrument is slidably arranged on the base, the pressure measuring instrument is provided with a measuring part facing the clamping part, the pressure measuring instrument can be abutted with the camera module to be tested in the sliding process, and the pressure measuring instrument is used for recording the bearing pressure value of the camera module to be tested; the pressure application assembly is arranged on the base and is connected with the pressure measurement instrument, the pressure application assembly is used for applying pressure to the pressure measurement instrument, the pressure application assembly comprises an adjusting piece and a spring, the adjusting piece is movably arranged on the base, two ends of the spring are respectively connected with the pressure measurement instrument and the adjusting piece directly or indirectly, and the pressure measurement instrument can slide towards the clamping part under the action of the spring.

As a preferable scheme of the pressure testing device, the pressure applying assembly further comprises an outer cylinder and an inner cylinder which is in sliding connection with the outer cylinder, the inner cylinder and the outer cylinder are respectively connected with the pressure measuring instrument and the adjusting piece, the spring is arranged in the outer cylinder and the inner cylinder, and two ends of the spring are respectively connected with the outer cylinder and the inner cylinder.

As a preferable scheme of the pressure testing device, a first sliding component is connected to the base in a sliding manner, the pressure measuring instrument is connected with the base in a sliding manner through the first sliding component, the first sliding component comprises a first sliding seat and a first guide rail, the first guide rail is arranged on the base, and the pressure measuring instrument is connected with the first guide rail in a sliding manner through the first sliding seat.

As a preferable scheme of the pressure testing device, the pressure applying assembly further comprises a limiting piece, a strip-shaped limiting hole is formed in the side wall of the outer periphery of the outer cylinder, the length direction of the strip-shaped limiting hole is consistent with the sliding direction of the outer cylinder and the inner cylinder, and the limiting piece is inserted into the strip-shaped limiting hole and is connected with the inner cylinder.

As a preferable scheme of the pressure testing device, the pressure testing device further comprises a mounting plate, the adjusting piece is a moving rod provided with a threaded structure, a first threaded hole is formed in the mounting plate, the moving rod is in threaded connection with the first threaded hole, and one end of the moving rod, penetrating through the first threaded hole, is connected with the inner cylinder or the outer cylinder.

As a preferable scheme of the pressure testing device, the positioning mechanism comprises a clamping component and a positioning component, the clamping component and the positioning component are arranged at intervals along a first direction, the clamping component comprises a first supporting seat, a first driving mechanism arranged on the first supporting seat and at least two clamping jaws connected to the first driving mechanism, and the clamping part is formed by splicing all the clamping jaws; the positioning assembly comprises a second supporting seat, a second driving mechanism arranged on the second supporting seat and at least two centering claws connected to the second driving mechanism; the first driving mechanism drives the clamping jaw to move along the direction perpendicular to the first direction so as to clamp the camera module to be tested; the second driving mechanism drives the centering claw to move to act on the camera module to be tested, so that when external force along the first direction acts on the camera module to be tested, the centering claw can limit the position of the camera module to be tested in the first direction.

As a preferable scheme of the pressure testing device, the first driving mechanism comprises a plurality of transmission gears and a driving ring, the transmission gears and the driving ring are rotatably arranged on the first supporting seat, the clamping jaws are slidably arranged on the first supporting seat, racks are arranged on the clamping jaws, the driving ring is a ring-shaped internal gear or a ring-shaped external gear, at least one transmission gear is meshed with the driving ring and the racks of the clamping jaws, and the two clamping jaws can be driven to move oppositely or reversely in the rotation process of the driving ring.

As a preferable scheme of the pressure testing device, the first supporting seat is provided with a through hole, the center of the clamping part is concentrically arranged with the through hole, the measuring part of the pressure measuring instrument can penetrate through the through hole and face the center of the clamping part, and during testing, the measuring part of the pressure measuring instrument is abutted with the camera module to be tested clamped by the positioning component.

As a preferable scheme of the pressure testing device, the second driving mechanism comprises a threaded disc, a spiral protrusion is arranged on one side of the threaded disc, the threaded disc is rotatably mounted on the second supporting seat, one side of the threaded disc, which is provided with the spiral protrusion, forms a spiral channel with the second supporting seat, four centering claws are provided with protruding parts, the centering claws are slidably mounted on the second supporting seat, the protruding parts are slidably mounted in the spiral channel, one ends of the four centering claws are spliced to form supporting parts, the four centering claws can be driven to be close to or far away from each other by rotation of the threaded disc, and the supporting parts and the measuring parts are respectively positioned on two sides of the clamping parts.

As a preferable scheme of the pressure testing device, the base is slidably connected with a mounting seat, the pressure measuring instrument and the pressing assembly are both arranged on the mounting seat, the mounting seat is slidably connected with the base through a second sliding assembly, the second sliding assembly comprises a second guide rail and a second sliding seat, the second guide rail is mounted on the base, the mounting seat is slidably connected with the second guide rail through the second sliding seat, a locking piece is arranged on the second sliding seat, and the locking piece can be used for fixing the second sliding seat and the second guide rail.

The embodiment of the utility model has the beneficial effects that: the camera module to be tested is clamped by arranging the positioning mechanism on the base, so that the follow-up pressing assembly is accurately aligned with the camera module to be tested through the pressure measuring instrument, and the stability and accuracy of the pressure test of the camera module to be tested are improved; the pressure application assembly consisting of the adjusting piece and the spring is used for applying pressure to the camera module to be tested through the pressure measuring instrument, and the spring can be used for effectively preventing the adjusting piece from being directly and rigidly contacted with the camera module to be tested through the pressure measuring instrument, so that the camera module to be tested is prevented from being damaged; after the pressure measuring instrument is abutted to the camera module to be tested, the adjusting piece is movably arranged on the base, and the position of the adjusting piece is adjusted, so that the compression amount of the spring is controllably adjusted, the force, which is transmitted to the pressure measuring instrument and acts on the camera module to be tested, of the adjusting piece is finer, the performance of the camera module to be tested under the specified load can be repeatedly and accurately tested, the measuring precision is high, the testing range is wide, the requirement on the manual skill is low, and the testing efficiency is high.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

Fig. 1 is a schematic diagram of an overall structure of a pressure testing device according to an embodiment of the utility model.

Fig. 2 is a cross-sectional view of a pressure testing apparatus according to an embodiment of the present utility model.

Fig. 3 is an exploded view of a pressing assembly according to an embodiment of the present utility model.

Fig. 4 is an exploded view of a clamping assembly according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a limiting plate according to an embodiment of the utility model.

Fig. 6 is an exploded view of a positioning assembly according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of a screw plate according to an embodiment of the present utility model.

In the figure:

1. a base; 11. a mounting plate; 111. a first threaded hole; 2. a positioning mechanism; 21. a clamping assembly; 211. a first support base; 2111. a circular groove; 2112. an arc opening; 212. a limiting plate; 2121. a first chute; 213. a clamping jaw; 214. a drive ring; 215. a transmission gear; 216. a rack; 217. a handle; 218. a through hole; 22. a positioning assembly; 221. a second support base; 2211. a second chute; 222. a threaded disc; 2221. spiral bulges; 223. centering claws; 2231. a boss; 224. a support part; 3. a pressure gauge; 4. a pressing assembly; 41. an adjusting member; 42. a spring; 43. an inner cylinder; 431. a second groove; 432. a second threaded hole; 44. an outer cylinder; 441. a first groove; 442. a bar-shaped limiting hole; 5. a first slide assembly; 51. a first slider; 52. a first guide rail; 6. a mounting base; 7. a second slide assembly; 71. a second guide rail; 72. and a second slide.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

As shown in fig. 1 and 2, the pressure testing device according to the embodiment of the present utility model includes a base 1, a positioning mechanism 2, a pressure gauge 3, and a pressing assembly 4; the positioning mechanism 2 is arranged on the base 1, and a clamping part for clamping the camera module to be tested is arranged on the positioning mechanism 2; the pressure measuring instrument 3 is slidably arranged on the base 1, the pressure measuring instrument 3 is provided with a measuring part facing the clamping part, the pressure measuring instrument 3 can be abutted with the camera module to be tested in the sliding process, and the pressure measuring instrument 3 is used for recording the bearing pressure value of the camera module to be tested; the pressure applying component 4 is arranged on the base 1 and is connected with the pressure measuring instrument 3, the pressure applying component 4 is used for applying pressure to the pressure measuring instrument 3, the pressure applying component 4 comprises an adjusting piece 41 and a spring 42, the adjusting piece 41 is movably arranged on the base 1, two ends of the spring 42 are respectively connected with the pressure measuring instrument 3 and the adjusting piece 41 directly or indirectly, and the pressure measuring instrument 3 can slide towards the clamping part under the action of the driving spring 42 of the adjusting piece 41. The camera module to be tested is clamped by the positioning mechanism 2 arranged on the base 1, so that the follow-up pressing assembly 4 is accurately aligned with the camera module to be tested through the pressure measuring instrument 3, and the stability and accuracy of the pressure test of the camera module to be tested are improved. The pressure application assembly 4 composed of the adjusting piece 41 and the spring 42 applies pressure to the camera module to be tested through the pressure measuring instrument 3, and the spring 42 can effectively prevent the adjusting piece 41 from directly and rigidly contacting with the camera module to be tested through the pressure measuring instrument 3, so that the camera module to be tested is prevented from being damaged. After the pressure measuring instrument 3 is abutted to the camera module to be tested, as the adjusting piece 41 is movably arranged on the base 1, the compression amount of the spring 42 is adjusted by adjusting the position of the adjusting piece 41, so that the force of the adjusting piece 41 transmitted to the pressure measuring instrument 3 on the camera module to be tested is finer, the performance of the camera module to be tested under the specified load can be accurately tested, the measuring precision is high, the testing range is wide, the requirement on the manual skill is low, and the testing efficiency is high.

In an alternative embodiment, as shown in fig. 1, a first sliding assembly 5 is slidably connected to the base 1, the pressure gauge 3 is slidably connected to the base 1 through the first sliding assembly 5, the first sliding assembly 5 includes a first sliding seat 51 and a first guide rail 52, the first guide rail 52 is disposed on the base 1, and the pressure gauge 3 is slidably connected to the first guide rail 52 through the first sliding seat 51. The length direction of the first guide rail 52 is consistent with the force application direction of the adjusting piece 41, the pressure measuring instrument 3 is prevented from being connected with the spring 42 and inclining downwards due to the fact that the weight of the pressure measuring instrument 3 is unstable, the first sliding seat 51 is matched with the first guide rail 52, the movement guide of the pressure measuring instrument 3 is enhanced, the follow-up accurate alignment of the pressure measuring instrument 3 and a camera module is facilitated, and the measurement accuracy of the pressure measuring instrument 3 is improved.

In an alternative embodiment, as shown in fig. 1 and 3, the pressing assembly 4 further includes an outer cylinder 44, and an inner cylinder 43 slidably connected to the outer cylinder 44, where the inner cylinder 43 and the outer cylinder 44 are connected to the pressure gauge 3 and the adjusting member 41, respectively, in this embodiment, the inner cylinder 43 is connected to the pressure gauge 3, the outer cylinder 44 is connected to the adjusting member 41, in other embodiments, the inner cylinder 43 is connected to the adjusting member 41, the outer cylinder 44 is connected to the pressure gauge 3, the spring 42 is disposed in the outer cylinder 44 and the inner cylinder 43, and two ends of the spring 42 are connected to the outer cylinder 44 and the inner cylinder 43, respectively. The outer cylinder 44 is provided with a first groove 441, the inner cylinder 43 is inserted into the first groove 441, one end of the spring 42 is connected with the inner cylinder 43, and the other end of the spring 42 is connected with the bottom of the first groove 441. The sliding fit of the inner cylinder 43 and the outer cylinder 44 is utilized to limit the driving direction of the spring 42 inserted in the first groove 441 of the outer cylinder 44, so that the stability of the spring 42 in the compression process and the recovery process is ensured, the stability of the force transmitted to the camera module by the adjusting piece 41 is ensured, and the measurement error caused by unbalance of the spring 42 is reduced. Preferably, as shown in fig. 3, the inner cylinder 43 is provided with a second groove 431, and one end of the spring 42 away from the bottom of the first groove 441 is connected with the bottom of the second groove 431. The second groove 431 is formed in the inner cylinder 43, the spring 42 is inserted into the second groove 431, the occupied space of the inner cylinder 43 and the outer cylinder 44 in a sliding connection mode is reduced, the occupied space of the whole device is reduced, and the space utilization rate is improved. Optionally, the spring 42 may be connected to the first groove 441 and the second groove 431 in an abutting manner, or may be connected in a fixed connection (such as welding, fixing a limiting member, etc.), so that when the spring 42 is connected to the first groove 441 and the second groove 431 in an abutting manner, the spring 42 is convenient to detach and replace. Further, by replacing the springs 42, the pressure test of different fine degrees can be satisfied according to the elastic coefficients of different springs 42, and the test range is wider.

Further, as shown in fig. 3, the pressing assembly further includes a limiting member, a strip-shaped limiting hole 442 is formed in the outer peripheral side wall of the outer cylinder 44, the length direction of the strip-shaped limiting hole 442 is consistent with the sliding direction of the outer cylinder 44 and the inner cylinder 43, and the limiting member is inserted into the strip-shaped limiting hole 442 and connected with the inner cylinder 43. The outer cylinder 44 is connected with the inner cylinder 43 by passing through the bar-shaped limiting hole 442 by the limiting piece, so that the outer cylinder 44 is effectively prevented from being separated from the inner cylinder 43 under the driving of the restoring force of the spring 42 when the spring 42 is abutted with the first groove 441 and/or the second groove 431. Specifically, the limiting piece is in sliding connection with the bar-shaped limiting hole 442, the second threaded hole 432 is formed in the outer peripheral side wall of the inner cylinder 43, the limiting piece is a screw, and the screw penetrates through the bar-shaped limiting hole 442 to be screwed into the second threaded hole 432 so as to limit the outer cylinder 44 to be separated from the inner cylinder 43 under the driving of the restoring force of the spring 42, and the screw-thread fit connection is convenient, the disassembly is realized, the reuse rate is high, and the maintenance is convenient. In other embodiments, the stop member may be welded directly to the inner barrel.

In this embodiment, as shown in fig. 3, the pressure testing device further includes a mounting plate 11, the adjusting member 41 is a moving rod with a threaded structure, the mounting plate 11 is directly or indirectly mounted on the base 1, the mounting plate 11 is provided with a first threaded hole 111, the moving rod is in threaded connection with the first threaded hole 111, and one end of the moving rod passing through the first threaded hole 111 is connected with the outer cylinder 44. The feeding amount of the adjusting piece 41 can be controlled by screwing the moving rod, the outer cylinder 44 is pressed against, the spring 42 is compressed, the applied pressure of the camera module to be tested is regulated and controlled, and the camera module to be tested is simple in structure and convenient to produce and use. Alternatively, the moving rod may be connected to the outer cylinder 44 in an abutting manner, or may be connected in a fixed manner (such as welding, fixing a limiting member, etc.), so that screwing of the moving rod is facilitated when the moving rod is connected to the outer cylinder 44 in an abutting manner. In other embodiments, the adjusting member 41 may also have a differential head, an electric cylinder, or the like.

In other embodiments, the inner cylinder 43 is not limited to be fixedly connected to the side, away from the camera module to be tested, of the pressure measuring instrument 3, the outer cylinder 44 is abutted to the adjusting member 41, and the inner cylinder 43 may be abutted to the adjusting member 41, so that the outer cylinder 44 and the side, away from the camera module to be tested, of the pressure measuring instrument 3 may be fixedly connected.

In an alternative embodiment, as shown in fig. 1, 4 and 6, the positioning mechanism 2 includes a clamping assembly 21 and a positioning assembly 22, where the clamping assembly 21 and the positioning assembly 22 are disposed at intervals along a first direction (the first direction is an X direction in fig. 1), and each of the clamping assembly 21 and the positioning assembly 22 includes a first supporting seat 211, a first driving mechanism disposed on the first supporting seat 211, and at least two clamping jaws 213 connected to the first driving mechanism, and the clamping portion is formed by splicing all the clamping jaws 213; the positioning assembly 22 comprises a second supporting seat 221, a second driving mechanism arranged on the second supporting seat 221 and at least two centering claws 223 connected to the second driving mechanism; the first driving mechanism drives the clamping jaws 213 to move along the direction perpendicular to the X direction to clamp the camera module to be tested, and the wall surface clamped by each clamping jaw 213 contacts with the outer surface of the camera module to be tested, for example, is attached to or abutted against the outer surface of the camera module to be tested, so as to prevent the camera module to be tested from moving in the direction perpendicular to the X direction; the second driving mechanism drives the centering claw 223 to move to act on the camera module to be tested, so that when external force along the X direction acts on the camera module to be tested, the centering claw 223 can limit the position of the camera module to be tested in the X direction. The clamping assembly 21 and the positioning assembly 22 are matched to act on the camera module to be tested, so that the pressure applying module can perform pressure test on the camera module to be tested in the X direction through the pressure measuring instrument 3.

Alternatively, as shown in fig. 4 and 5, the first driving mechanism includes a plurality of transmission gears 215 and a driving ring 214, the transmission gears 215 and the driving ring 214 are rotatably mounted on the first supporting seat 211, the clamping jaws 213 are slidably mounted on the first supporting seat 211, the clamping jaws 213 are provided with racks 216, the driving ring 214 is a ring-shaped internal gear or a ring-shaped external gear, at least one transmission gear 215 is meshed with the driving ring 214 and the racks 216 of the clamping jaws 213, and during the rotation of the driving ring 214, the two clamping jaws 213 can be driven to move in opposite directions or opposite directions. Specifically, the first supporting seat 211 includes a first supporting plate and a limiting plate 212 disposed on the first supporting plate, a circular groove 2111 is concavely disposed on a side surface of the first supporting plate facing the limiting plate 212, an outer side wall of the driving ring 214 is slidably connected with a groove wall of the circular groove 2111, a transmission gear 215 is rotatably connected to the circular groove 2111, the transmission gear 215 is meshed with the driving ring 214, a first sliding groove 2121 communicated with the circular groove 2111 is formed in the limiting plate 212, a rack 216 is slidably connected with the first sliding groove 2121, the rack 216 is meshed with the transmission gear 215, and the driving ring 214 is rotated to drive the transmission gear 215 to rotate so as to drive the rack 216 to drive the two clamping jaws 213 to approach or separate from each other. The clamping jaw 213 can be effectively controlled to clamp the camera module to be tested in a manual driving mode, so that the damage to the camera module to be tested is reduced.

Preferably, as shown in fig. 4, an arc opening 2112 is formed in the groove wall of the circular groove 2111, and a handle 217 is provided on the driving ring 214, and the handle 217 extends out of the first support plate through the arc opening 2112. The driving ring 214 is conveniently rotated by an operator through the handle 217, and the operation is convenient.

Specifically, as shown in fig. 6 and 7, the second driving mechanism includes a threaded disc 222, a spiral protrusion 2221 is disposed on one side of the threaded disc 222, the threaded disc 222 is rotatably mounted on the second supporting seat 221, a spiral channel is formed between one side of the threaded disc 222 with the spiral protrusion 2221 and the second supporting seat 221, the four centering claws 223 are respectively provided with a protrusion 2231, the centering claws 223 are slidably mounted on the second supporting seat 221, the protrusions 2231 are slidably mounted in the spiral channel, one ends of the four centering claws 223 are spliced to form a supporting portion, the rotation of the threaded disc 222 can drive the four centering claws 223 to approach or separate from each other, and the supporting portion 224 and the measuring portion are respectively located on two sides of the clamping portion. The second supporting seat 221 is installed on the base 1, four second sliding grooves 2211 are concavely arranged on the second supporting seat 221, the four second sliding grooves 2211 are symmetrically arranged in a central mode along the clamping center of the clamping assembly 21, the centering claws 223 are slidably connected with the sliding grooves, the clamping assembly 21 clamps the main body part, equal included angle intervals among the four centering claws 223 are arranged on the second supporting seat 221, namely, one side face, facing the clamping center, of the four centering claws 223 is enclosed to form a supporting part 224. Taking a conventional camera module as an example, the camera module comprises a lens and a board card, the lens is arranged on the board card, and during testing, the supporting parts 224 are abutted with four corners of the board card, and the clamping claws 213 form clamping parts, so that the camera module is clamped in the clamping parts. The measuring part is abutted with the lens and applies pressure to the lens, so that the pressure resistance of the camera module is tested.

The rotation center axis of the screw disc 222 is parallel to the X direction, that is, the screw disc 222 is rotated, the spiral protrusion 2221 drives the protrusion 2231, so that each centering claw 223 moves along the direction perpendicular to the center axis of the screw disc 222, one side surface of the camera module to be tested, which is far away from the pressure measuring instrument 3, is abutted against the supporting part 224 formed by the centering claws 223, so as to limit the position of the camera module to be tested in the X direction, and meanwhile, the limitation of the lens module in the X direction is effectively enhanced through the positioning of the supporting part 224, in this embodiment, the screw disc 222 is of a circular ring structure, and a circular ring center hole is used for the camera module to be tested to pass through and be clamped in the centering claws 223. The operator can adjust the centering claw 223 through controlling the rotation of the thread disc 222 to limit the camera shooting module to be tested, and the structure is simple and the operation is convenient.

In this embodiment, as shown in fig. 1 and 4, the first supporting seat 211 is disposed perpendicular to the X direction, a through hole 218 is formed on a side surface of the first supporting seat 211 facing the pressure measuring instrument 3, a clamping center of the clamping portion is disposed concentrically with the through hole 218, a measuring portion of the pressure measuring instrument 3 can pass through the through hole 218 and face the center of the clamping portion, and during testing, the measuring portion of the pressure measuring instrument 3 abuts against the camera module to be tested clamped by the positioning component 22. The first supporting seat 211 is perpendicular to the X direction, so that the occupied space of the clamping assembly 21 is effectively reduced, and the space utilization rate of the device is improved. In other embodiments, the first supporting base 211 is not limited to be disposed perpendicular to the X direction, and the first supporting base 211 may be disposed parallel to the X direction.

Further, as shown in fig. 1, the base 1 is slidably connected with a mounting seat 6, the pressure measuring instrument 3 and the pressure applying component 4 are both disposed on the mounting seat 6, the mounting seat 6 is slidably connected with the base 1 through a second sliding component 7, the second sliding component 7 includes a second guide rail 71 and a second sliding seat 72, the second guide rail 71 is mounted on the base 1, the mounting seat 6 is slidably connected with the second guide rail 71 through the second sliding seat 72, the mounting plate 11 is disposed on the mounting seat 6, and the second sliding seat 72 is fixed with the second guide rail 71 through a locking member. In this embodiment, the locking member is a bolt, and the second slide 72 is provided with a third threaded hole, and the second slide 72 is screwed through the third threaded hole to abut against the second rail 71, so as to limit the movement of the second slide 72. The positioning mechanism 2 can position various camera modules with different models and different sizes, the pressure measuring instrument 3 and the pressing assembly 4 are arranged on the mounting seat 6, the pressure measuring instrument 3 is attached to the camera module to be tested by sliding the second sliding assembly 7, and compatibility of the testing device is improved.

In the description herein, it should be understood that the terms "upper," "lower," and the like are used for convenience in description and simplicity of operation only, and are not necessarily indicative or implying any particular orientation, configuration or operation of such apparatus or elements herein, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the term "an embodiment" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (10)

1. A pressure testing device, comprising:

a base;

the positioning mechanism is arranged on the base and is provided with a clamping part for clamping the camera module to be tested;

the pressure measuring instrument can be slidably arranged on the base, the pressure measuring instrument is provided with a measuring part facing the clamping part, the pressure measuring instrument can be abutted with the camera module to be tested in the sliding process, and the pressure measuring instrument is used for recording the bearing pressure value of the camera module to be tested;

the pressure application assembly is arranged on the base and is connected with the pressure measuring instrument, the pressure application assembly is used for applying pressure to the pressure measuring instrument, the pressure application assembly comprises an adjusting piece and a spring, the adjusting piece is movably arranged on the base, two ends of the spring are respectively connected with the pressure measuring instrument and the adjusting piece directly or indirectly, and the pressure measuring instrument can slide towards the clamping part under the action of the spring.

2. The pressure testing device according to claim 1, wherein the pressure applying assembly further comprises an outer cylinder and an inner cylinder slidably connected with the outer cylinder, the inner cylinder and the outer cylinder are respectively connected with the pressure measuring instrument and the adjusting piece, the spring is arranged in the outer cylinder and the inner cylinder, and two ends of the spring are respectively connected with the outer cylinder and the inner cylinder.

3. The pressure testing device of claim 2, wherein the base is slidably connected with a first sliding assembly, the pressure gauge is slidably connected with the base through the first sliding assembly, the first sliding assembly comprises a first sliding seat and a first guide rail, the first guide rail is disposed on the base, and the pressure gauge is slidably connected with the first guide rail through the first sliding seat.

4. The pressure testing device according to claim 3, wherein the pressing assembly further comprises a limiting member, a strip-shaped limiting hole is formed in the outer circumferential side wall of the outer cylinder, the length direction of the strip-shaped limiting hole is consistent with the sliding direction of the outer cylinder and the inner cylinder, and the limiting member is inserted into the strip-shaped limiting hole and connected with the inner cylinder.

5. The pressure testing device according to any one of claims 2 to 4, further comprising a mounting plate, wherein the adjusting member is a moving rod provided with a threaded structure, a first threaded hole is formed in the mounting plate, the moving rod is in threaded connection with the first threaded hole, and one end of the moving rod passing through the first threaded hole is connected with the inner cylinder or the outer cylinder.

6. The pressure testing device of any one of claims 1 to 4, wherein the positioning mechanism comprises a clamping assembly and a positioning assembly, the clamping assembly and the positioning assembly are arranged at intervals along a first direction, the clamping assembly comprises a first supporting seat, a first driving mechanism arranged on the first supporting seat and at least two clamping jaws connected to the first driving mechanism, and the clamping portion is formed by splicing all clamping jaws; the positioning assembly comprises a second supporting seat, a second driving mechanism arranged on the second supporting seat and at least two centering claws connected to the second driving mechanism;

the first driving mechanism drives the clamping jaw to move along the direction perpendicular to the first direction so as to clamp the camera module to be tested; the second driving mechanism drives the centering claw to move to act on the camera module to be tested, so that when external force along the first direction acts on the camera module to be tested, the centering claw can limit the position of the camera module to be tested in the first direction.

7. The pressure testing device according to claim 6, wherein the first driving mechanism comprises a plurality of transmission gears and a driving ring, the transmission gears and the driving ring are rotatably mounted on the first supporting seat, the clamping jaw is slidably mounted on the first supporting seat, a rack is arranged on the clamping jaw, the driving ring is a ring-shaped internal gear or a ring-shaped external gear, at least one transmission gear is meshed with the driving ring and the rack of the clamping jaw, and the two clamping jaws can be driven to move in opposite directions or in opposite directions during rotation of the driving ring.

8. The pressure testing device according to claim 7, wherein the first support base is provided with a through hole, the center of the clamping portion is concentric with the through hole, the measuring portion of the pressure measuring instrument can pass through the through hole and face the center of the clamping portion, and during testing, the measuring portion of the pressure measuring instrument abuts against the camera module to be tested clamped by the positioning assembly.

9. The pressure testing device according to claim 6, wherein the second driving mechanism comprises a threaded disc, a spiral protrusion is arranged on one side of the threaded disc, the threaded disc is rotatably mounted on the second supporting seat, a spiral channel is formed between one side of the threaded disc with the spiral protrusion and the second supporting seat, four centering claws are arranged, protruding portions are arranged on the four centering claws, the centering claws are slidably mounted on the second supporting seat, the protruding portions are slidably mounted in the spiral channel, one ends of the four centering claws are spliced to form supporting portions, the four centering claws can be driven to be close to or far away from each other by rotation of the threaded disc, and the supporting portions and the measuring portions are respectively located on two sides of the clamping portions.

10. The pressure testing device according to any one of claims 1 to 4, wherein a mounting seat is slidably connected to the base, the pressure measuring instrument and the pressing component are both disposed on the mounting seat, the mounting seat is slidably connected to the base through a second sliding component, the second sliding component comprises a second guide rail and a second slide seat, the second guide rail is mounted on the base, the mounting seat is slidably connected to the second guide rail through the second slide seat, and a locking member is further disposed on the second slide seat, and the locking member is used to fix the second slide seat to the second guide rail.