WO2021253568A1 - Falling ball testing machine - Google Patents

Abstract

A falling ball testing machine (100), comprising: a machine base (1), a pickup mechanism (2), a protective structure (3) and a controller (4), wherein the machine base (1) is provided with a testing station (11) for placing a product to be tested for a falling ball test. The pickup mechanism (2) is movably arranged to pick up a falling ball to a set position above the testing station (11). The protective structure (3) comprises a movably arranged protective cover (31) and a drive device, wherein the protective cover (31) is provided with a cover position to move above the testing station (11) to cover the testing station (11), and a yielding position to move to one side of the testing station (11) to yield the testing station (11). The controller (4) is electrically connected to the drive device so as to control the drive device to work. The falling ball is picked up by the pickup mechanism (2) and is released after being lifted to the set position, such that the falling ball falls down and collides with the product to be tested on the testing station (11), and a collision operation is completed. After the falling ball falls down and collides with the product to be tested, the controller (4) controls the drive device to drive the protective cover (31) to move to the cover position, preventing the falling ball from bouncing and colliding again with the product to be tested.

Description

Falling ball test machine Technical field

The invention relates to the technical field of product reliability test equipment, in particular to a falling ball test machine.

Background technique

With the development of science and technology, people have stricter and stricter requirements on product reliability. Among the many reliability tests carried out on the product, including the use of falling balls to carry out a collision test on the product under test. The current product drop ball test operations are basically carried out manually. This method has slow test efficiency, high labor costs, and there is a risk of improper test operation, and the drop point cannot be guaranteed; in addition, the existing test methods are prone to falling balls. And the product bounces after collision, and the problem of secondary collision of the product to be tested affects the accuracy of the test result.

Summary of the invention

The main purpose of the present invention is to provide a falling ball test machine, which aims to solve the problem that the traditional falling ball test relies on manual labor and is prone to secondary collisions.

In order to achieve the above objective, a falling ball testing machine provided by the present invention includes:

The machine base has a test station for placing the product to be tested for falling ball test;

The picking mechanism can be movably arranged on the machine base to pick up the falling ball to a set position directly above the test station;

The protective structure is arranged on the machine base, and the protective structure includes a protective cover that can be movably arranged, and a driving device for driving the protective cover to move, and the protective cover is movable above the test station to cover The cover position of the test station, and the position that moves to the side of the test station to make way for the test station; and,

The controller is electrically connected to the driving device for controlling the operation of the driving device.

Optionally, the protective cover includes two protective plates separately arranged on opposite sides of the test station;

The two protective plates are movably arranged above the test station, and are driven by the driving device to have movable strokes that are close to and away from each other. When they are close to each other, the protective cover is in the cover position , When moving away from each other, the protective cover is in the retreat position.

Optionally, the falling ball testing machine further includes a transfer mechanism for transferring the falling ball to the picking station of the picking mechanism, and for transferring the product to be tested to the testing station.

Optionally, the reclaiming station and the testing station are arranged to coincide with each other;

The transfer mechanism includes:

An object carrier board for placing the falling ball and the product to be tested, the object carrier board can be movably set on the machine base in the transfer direction close to and away from the test station; and,

The first driver is arranged on the machine base and is drivingly connected to the object carrier.

Optionally, the carrier board defines a first fixing position for placing the falling ball and a second fixing position for fixing the product to be tested;

The first fixed position and the second fixed position are arranged at intervals along the transfer direction.

Optionally, the carrier board is provided with a first limiting slot for retaining and limiting the falling ball, and the first limiting slot defines the first fixed position; and/or,

The carrier board is provided with a second limiting slot for clamping and fixing the product to be tested, and the second limiting slot defines the second fixing position.

Optionally, the peripheral edge of the first limiting groove is gradually inclined downward in a direction close to the first limiting groove; and/or,

At least two of the first limiting grooves are provided on opposite sides corresponding to the second fixing position.

Optionally, the transfer mechanism further includes a limit plate arranged around the periphery of the load board.

Optionally, the falling ball testing machine further includes a first sensor, the first sensor is arranged on the base, and when the falling ball is placed in the first fixed position and the product to be tested is placed Triggered when the second fixed position;

The controller is electrically connected to the first sensor and the first driver, so as to control the operation of the first driver when receiving a sensing signal triggered by the second sensor.

Optionally, the falling ball testing machine further includes a second sensor arranged at a preset position in the falling and rising strokes of the falling ball, the preset position being set close to the testing station, and the second sensor The sensor is used to be triggered when the falling ball falls to the preset position;

The controller is electrically connected to the second sensor and the driving device, so as to control the operation of the driving device when receiving a sensing signal triggered by the second sensor.

Optionally, the pickup mechanism includes:

The picking part is movably arranged on the machine base along the up and down direction, and can pick up and release the falling ball setting;

A second driver for driving the pickup part to pick up and release the falling ball; and,

The third driver is used to drive the pickup part to move up and down.

In the technical solution provided by the present invention, the picking mechanism picks up the falling ball and lifts it to a set position and releases it, so that the falling ball falls and collides with the product to be tested on the test station to complete a collision operation; After the product is tested, the controller controls the driving device to drive the protective cover to the cover position to protect the product under test to prevent the falling ball from bouncing and colliding with the product under test again.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.

Fig. 1 is a schematic top view of an embodiment of the falling ball testing machine provided by the present invention;

Figure 2 is a schematic front view of the falling ball testing machine in Figure 1;

Figure 3 is a schematic top view of the protective structure and transfer mechanism in Figure 1;

Figure 4 is a schematic front view of the protective structure and transfer mechanism in Figure 1;

Fig. 5 is a schematic top view of a partial structure of the transfer mechanism in Fig. 1;

Fig. 6 is a schematic front view of a partial structure of the transfer mechanism in Fig. 1;

Fig. 7 is a schematic top view of the pallet structure in Fig. 1;

Fig. 8 is a schematic front view of the pickup mechanism in Fig. 1.

Attached icon number description:

Label	name	Label		name
100	Falling ball test machine	31	safety mask
1	Machine base	311	Fenders
11	Test station	4	Controller
12	Enclosure structure	5	Transfer mechanism

13	Pallet structure	51	Loading board
2	Picking mechanism	511	The first limit slot
twenty one	Picking Department	512	Second limit slot
twenty two	Second drive	52	First drive
twenty three	Third drive	53	Limit plate
3	Protective structure	6	sensor

The realization of the objectives, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as instructions or implications Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. , Is not within the protection scope of the present invention.

With the development of science and technology, people have stricter and stricter requirements on product reliability. Among the many reliability tests carried out on the product, including the use of falling balls to carry out a collision test on the product under test. The current product drop ball test operations are basically carried out manually. This method has slow test efficiency, high labor costs, and there is a risk of improper test operation, and the drop point cannot be guaranteed; in addition, the existing test methods are prone to falling balls. And the product bounces after collision, and the problem of secondary collision of the product to be tested affects the accuracy of the test result.

In view of the above, the present invention also provides a falling ball testing machine. FIGS. 1 to 8 are specific embodiments of the falling ball testing machine provided by the present invention.

The falling ball test machine 100 provided by the present invention is suitable for various types of falling ball tests in which a sphere or a sphere-like body collides with a product to be tested. 1 to 3, the falling ball testing machine 100 includes a base 1, a pick-up mechanism 2, a protective structure 3, and a controller 4, wherein the base 1 is provided for placing the product to be tested for performing the falling ball test The test station 11; the pick-up mechanism 2 can be movably set on the base 1 to pick up the falling ball to a set position directly above the test station 11; the protective structure 3 is set in the In the base 1, the protective structure 3 includes a protective cover 31 that can be movably arranged, and a driving device that drives the protective cover 31 to move. The protective cover 31 is movable above the testing station 11 to cover The cover position of the test station 11 and the position that moves to the side of the test station 11 to make way for the test station 11; the controller 4 is electrically connected to the driving device , Used to control the operation of the driving device.

In the technical solution provided by the present invention, the pickup mechanism 2 picks up the falling ball and lifts it to a set position and releases it, so that the falling ball falls and collides with the product to be tested on the test station 11 to complete a collision operation; After falling and colliding with the product under test, the controller 4 controls the driving device to drive the protective cover 31 to move to the cover position to protect the product under test and prevent the falling ball from bouncing and colliding with the product under test again.

This design does not limit the specific manifestation of the base 1. For example, the base 1 can be configured to have a base and a plurality of uprights erected on the base; the shape and size of the base 1 are the same as those of the base. The pick-up mechanism 2, the protective structure 3, etc. at the corresponding positions are adapted; it can be understood that the base 1 has an upwardly arranged work surface, and the test station 11 may be formed on the surface of the work surface. At any position; the picking mechanism 2 has a reclaiming station, the reclaiming station and the testing station can be set to be spaced apart or coincident with each other, and based on the consideration of reducing the movement stroke of the picking mechanism 2, so The reclaiming station may optionally coincide with the testing station 11; the testing station 11 may be defined by the pickup mechanism 2, marked by various identifiers, or passed on the work surface of the machine base 1. The concave or convex setting is exposed.

The outer peripheral side of the base 1 may be provided with an enclosure structure 12, the enclosure structure 12 is used to define a complete test space for the falling ball test, and to prevent the falling ball or the product to be tested in the test process External objects interfere with each other; the enclosure structure 12 includes a keel and a fence mounted on the keel; the keel can be integrated with the base 1 or separately; the fence can be set as A plurality of blocks, and a plurality of the enclosure baffles are sequentially spliced to enclose the test space; at least two adjacent enclosure baffles of the plurality of enclosure baffles are arranged to be able to open and close the test space. , In order to facilitate the disassembly and assembly of the operator to replace the components of the falling ball testing machine 100, for example, it is set as a door structure, which will not be described in detail here; the baffle can be set to be transparent or partially transparent, so as Conducive to visual monitoring by operators.

The controller 4 is used for determining that the falling ball collides with the product to be tested, and then controlling the protective cover 31 to move to the cover position through the driving device. There are many solutions for the determination, such as direct measurement by a photoelectric sensor, or indirect determination by calculating the falling time of the falling ball after the pickup mechanism 2 releases the falling ball. The controller 4 may be a control circuit composed of components such as relays, or a programmable control chip, both of which are in the prior art and will not be repeated here.

The protective structure 3 is provided on the work surface of the machine base 1; driven by the driving device, the protective cover 31 is switched between the cover position and the retreat position, and the The protective cover 31 can have multiple specific movement modes, such as linear displacement, axis rotation or any other form; the driving device is adapted to different movement modes of the protective cover 31, for example, the protective cover 31 When switching between the cover position and the retreat position is realized by linear displacement movement, the driving device may be configured as a linear cylinder or a driving motor combined with a transmission assembly.

Please refer to Figures 3 and 4, in one embodiment, the protective cover 31 includes two protective plates 311 arranged on opposite sides of the test station 11; the two protective plates 311 are movably arranged on the The test station 11 is above the test station 11 and is driven by the driving device to have a movable stroke that is close to and away from each other. When the two protective plates 311 are close to each other, the protective cover 31 is at the cover position. When the two protective plates 311 are far away from each other, the protective cover 31 is in the retreat position.

The two protective plates 311 are approximately the same in shape, and can be arranged in a straight plate shape or can be arranged in an arc plate shape. Wherein, when the two protective plates 311 are arranged as arc-shaped plates, it is helpful to increase the range of the protective area of the product to be tested, thereby enhancing the protective effect of the product to be tested; the two protective plates The installation height of 311 is approximately the same, and may be slightly higher than the maximum height of the product to be tested on the test station 11; the driving device can simultaneously drive the two protective plates 311 to move, for example, the driving The device is a drive motor and a lead screw, and the two protective plates 311 are screwed to the lead screw through two nuts with opposite spiral directions; of course, the drive device can be set to two corresponding to the two protective plates 311. , For example, set to two linear cylinders and so on. The arrangement of the two protective plates 311 helps to reduce the movable stroke of the protective cover 31 when the protective cover 31 is switched from the retreat position to the cover position, so as to be faster In addition, the arrangement of the two protective plates 311 is equivalent to forming supports on opposite sides of the protective cover 31, which helps to enhance the overall pressure-bearing strength of the protective cover 31. It should be noted that when the protective cover 31 is in the cover position, it is not restricted that the sides of the two protective plates 311 close to each other need to keep abutting, so as to ensure that the two protective plates 311 are in contact with each other. The distance should be at least smaller than the diameter of the falling ball.

In view of the above, in a falling ball test, it is necessary to first place the falling ball in the picking station of the picking mechanism 2 and place the product to be tested on the test station 11. This action can be performed manually The operation is completed, but in order to realize the intelligent automation of the falling ball testing machine 100, please refer to FIG. 3, FIG. 5 and FIG. 6. In one embodiment, the falling ball testing machine 100 further includes a transfer mechanism 5. The mechanism 5 can be movably arranged on the machine base 1 for transferring the falling ball to the picking station of the picking mechanism 2 and for transferring the product to be tested to the testing station 11. When the picking station of the picking mechanism 2 coincides with the testing station 11: first, the transfer mechanism 5 transfers the falling ball to the testing station 11, and the picking mechanism 2 picks up The falling ball is lifted to a set position; then, the transfer mechanism 5 transfers the product to be tested to the test station 11, and the picking mechanism 2 releases the falling ball for The falling ball falls freely and collides with the product to be tested, completing a falling ball test.

Of course, there are many specific technical solutions for the transfer mechanism 5, for example, the transfer mechanism 5 can be set to two, and the two transfer mechanisms 5 are respectively used to transfer the falling ball and the waiting Test products; or, in one embodiment, the transfer mechanism 5 is set to one, and the reclaiming station and the testing station 11 are arranged to overlap, based on this, the transfer mechanism 5 includes a load The board 51 and the first driver 52. The carrier board 51 is used for placing the falling ball and the product to be tested. The first driver 52 is movably arranged on the base 1; the first driver 52 is arranged on the base 1 and is drivingly connected to the carrier board 51. In the same way as described above, the first driver 52 is suitable for the different movement modes of the carrier board 51; the carrier board 51 is driven to move twice by the first driver 52, and the carrier board 51 can be moved and loaded separately. The falling ball and the product to be tested are placed in the testing station 11, and there is no need to set too many transfer mechanisms 5, which helps to simplify the overall structure of the falling ball testing machine 100.

Further, in this embodiment, the carrier board 51 defines a first fixing position for placing the falling ball and a second fixing position for fixing the product to be tested; the first fixing The positions and the second fixed positions are arranged at intervals along the transfer direction. In this way, it is only necessary to set the transfer mechanism 5 to have a movable stroke along the transfer direction, and then the falling ball on the first fixed position and the waiting position on the second fixed position can be completed. The purpose of transferring the test products to the test station 11 is helpful for the convenience of the whole operation of the falling ball testing machine 100.

Furthermore, in this embodiment, the carrier board 51 is provided with a first limiting slot 511 for retaining and limiting the falling ball, and the first limiting slot 511 defines the first fixed position . The inner shape of the first limiting groove 511 is adapted to the contour of the falling ball, so as to restrict the movement of the falling ball relative to the carrier board 51. And/or, the carrier board 51 is provided with a second limiting slot 512 for clamping and fixing the product to be tested, and the second limiting slot 512 defines the second fixing position. In the same way, the shape of the second limiting slot 512 fits the contour of the product to be tested, and the second limiting slot 512 fixes the product to be tested by clamping, restricting the The product to be tested moves relative to the carrier board 51, so that when the carrier board 51 is driven by the first driver 52, moves to the second fixed position on the test station 11, The accurate positioning of the product to be tested at the fixed point position on the testing station 11 ensures that the position of the product to be tested is basically unchanged during multiple falling ball tests, thereby helping to improve the accuracy of the falling ball test.

Next, in this embodiment, the peripheral edge of the first limiting groove 511 is gradually inclined downward in a direction approaching the first limiting groove 511. In this way, the falling ball is released by the picking mechanism 2, and after colliding with the product to be tested, it rolls on the carrier board 51, and can automatically roll back to the first limit position along the above-mentioned inclined setting. Slot 511, so that no manual operation or additional correction structure is required to put the falling ball back, and the steps of the first falling ball test can be repeated to perform the second falling ball test.

And/or, in this embodiment, at least two of the first limiting grooves 511 are provided on opposite sides corresponding to the second fixing position. It can be understood that at least two of the first limiting slots 511 and the second limiting slots 512 are collinear along the transfer direction; by providing at least two of the first limiting slots 511, After the second falling ball test, you can start the second falling ball test by transferring the other first limiting slot 511 to the picking mechanism 2 for the picking mechanism 2 to pick up without waiting for the falling ball to be fully returned. , Cycle in turn, helps to speed up the process of the falling ball test, thereby improving the efficiency of the falling ball test. Similarly, the number of second limiting slots 512 can also be set to at least two.

Please refer to FIGS. 3 and 4. In one embodiment, the transfer mechanism 5 further includes a limit plate 53 surrounding the side of the carrier plate 51. The limiting plate 53 is arranged around the entire circumference side of the carrying plate 51 to limit the falling ball and the product to be tested, and restrict the falling ball and the product to be tested from the load The board 51 falls off, so as to prevent the falling ball and the product to be tested from being damaged.

In addition, please refer to FIGS. 1 and 7. In one embodiment, the falling ball testing machine 100 further includes a first sensor. The first fixing position and the product to be tested are triggered when they are placed in the second fixing position; the controller 4 is electrically connected to the first sensor and the first driver 52 to receive When the sensing signal is triggered by the first sensor, the first driver 52 is controlled to work. The first sensor is, for example, an optical fiber sensor, which is used to sense the placement of the falling ball and the product to be tested on the object carrier 51; when the first sensor determines that the object carrier 51 is on When both the falling ball and the product to be tested are placed, an induction signal is triggered; the controller 4 receives the induction signal, that is, controls the first driver 52 to drive the object carrier 51 to move, so that the carrier The object board 51 successively sends the first fixed position and the second fixed displacement to the test station 11 to complete a falling ball test.

Then, in an embodiment, the falling ball testing machine 100 further includes a second sensor set at a predetermined position in the falling and rising strokes of the falling ball, and the predetermined position is set close to the testing station. , The second sensor is used to be triggered when the falling ball falls to the preset position; the controller 4 is electrically connected to the second sensor and the driving device, so as to receive the first When the sensing signal is triggered by the two sensors, the driving device is controlled to work. The second sensor is used to determine whether the falling ball collides with the product to be tested under the action of the pick-up mechanism 2; because the second sensor is provided in the falling and rising strokes of the falling ball. Set the position, that is, the rising and falling of the falling ball can be sensed by the second sensor. The rising and falling of the falling ball appear in pairs. At this time, the sensing signal triggered when the falling ball rises is filtered out , That is, it is possible to implement the second sensor to be triggered when the falling ball falls to the preset position, and send the sensing signal triggered at that time to the controller 4.

It can be understood that the first sensor and the second sensor can be configured differently or the same. In this embodiment, the first sensor and the second sensor are configured the same, based on Therefore, for ease of understanding, the first sensor and the second sensor are collectively referred to as the sensor 6 hereinafter, and the sensor 6 may be any form of position sensor, such as a light sensor, an imaging device, etc.; The specific location of the sensor 6 on the base 1 is not limited. In one embodiment, the falling ball testing machine 100 further includes a pallet structure 13 which is provided on the base 1 Between the work surface and the carrier board 51, and corresponding to the first limit slot 511 and the second limit slot 512 can be provided with respective relief slots, which can further realize the falling ball and the to-be-tested The product’s clamping and limiting position also facilitates the installation and fixation of the sensor 6; when the sensor 6 is configured as the above-mentioned optical fiber sensor and other structures, it can correspond to the first limiting slot 511 and the first limiting slot 511 and the first limiting slot 511 At least two of the two limiting slots 512 are provided to sense the falling ball in each of the first limiting slots 511 and the product to be tested in each of the second limiting slots 512.

Referring to FIG. 8, in an embodiment, the pickup mechanism 2 includes a pickup portion 21, a second driver 22, and a third driver 23, wherein the pickup portion 21 is movably disposed on the base 1 in the vertical direction. , And capable of picking up and releasing the falling ball setting; the second driver 22 is used to drive the picking portion 21 to pick up and release the falling ball; the third driver 23 is used to drive the picking portion 21 to move up and down . Specifically, a sliding rail can be provided on the base 1 along the vertical direction, and the picking part 21 is slidably connected to the sliding rail; the picking part 21 includes a suction nozzle arranged downward, and the suction nozzle has The lower suction surface, the suction surface is set in an arc shape to fit the contour of the falling ball; correspondingly, the second driver 22 is set as a vacuum generator, and the vacuum generator passes through a conduit Connected with the suction nozzle to form a negative pressure in the suction nozzle to realize the pickup of the falling ball; and when the negative pressure is reduced, realize the release of the falling ball; the third driver 23 is, for example, an electric cylinder .

It should be noted that the controller 4 can also be electrically connected with the first driver 52, the second driver 22, and the third driver 23 to realize intelligent automation of the whole machine of the falling ball testing machine 100. Based on this, in an application example, the operator manually places the falling ball and the product to be tested in the first limiting slot 511 and the second limiting slot 512 of the carrier board 51; The sensor 6 triggers a sensing signal when it senses the falling ball and the product to be tested; the controller 4 receives the sensing signal, and controls the object carrying board 51 through the first driver 52 to The falling ball is transferred to the testing station 11; the controller 4 controls the pick-up part 21 to move down close to the falling ball through the third driver 23, and then controls the suction through the second driver 22 Part picks up the falling ball, and then controls the pick-up part 21 to move up to the set position through the third driver 23; the controller 4 controls the object carrier 51 through the first driver 52 to move the The product to be tested is transferred to the test station 11; the controller 4 controls the picking part 21 to release the falling ball through the second driver 22, and after the falling ball falls and collides with the product to be tested, The sensor 6 triggers the sensing signal to the controller 4, and the controller 4 controls the protective cover 31 to move from the retreat position to the cover position through the driving device to prevent the ball from falling twice After hitting the product to be tested, a falling ball test is completed so far; the above-mentioned falling ball test steps are repeated until the end of the test.

The above are only the preferred embodiments of the present invention, and do not limit the scope of the present invention. Under the inventive concept of the present invention, equivalent structural transformations made by using the contents of the description and drawings of the present invention, or direct/indirect use All other related technical fields are included in the scope of patent protection of the present invention.

Claims (11)

1. A falling ball testing machine, characterized in that it comprises:

   The machine base has a test station for placing the product to be tested for falling ball test;

   The picking mechanism can be movably arranged on the machine base to pick up the falling ball to a set position directly above the test station;

   The protective structure is arranged on the machine base, and the protective structure includes a protective cover that can be movably arranged, and a driving device for driving the protective cover to move, and the protective cover is movable above the test station to cover The cover position of the test station, and the position that moves to the side of the test station to make way for the test station; and,

   The controller is electrically connected to the driving device for controlling the operation of the driving device.
2. 4. The falling ball testing machine according to claim 1, wherein the protective cover comprises two protective plates arranged on opposite sides of the test station;

   The two protective plates are movably arranged above the test station, and are driven by the driving device to have movable strokes that are close to and away from each other. When they are close to each other, the protective cover is in the cover position , When moving away from each other, the protective cover is in the retreat position.
3. The falling ball testing machine according to claim 1, wherein the falling ball testing machine further comprises a transfer mechanism for transferring the falling ball to the picking station of the picking mechanism, and for transferring the The product to be tested is transferred to the testing station.
4. The falling ball testing machine according to claim 3, wherein the reclaiming station and the testing station are arranged to coincide with each other;

   The transfer mechanism includes:

   An object carrier board for placing the falling ball and the product to be tested, the object carrier board can be movably set on the machine base in the transfer direction close to and away from the test station; and,

   The first driver is arranged on the machine base and is drivingly connected to the carrier board.
5. The falling ball testing machine according to claim 4, wherein the carrier plate defines a first fixing position for placing the falling ball and a second fixing position for fixing the product to be tested;

   The first fixed position and the second fixed position are arranged at intervals along the transfer direction.
6. The falling ball testing machine of claim 5, wherein the carrier plate is provided with a first limiting slot for retaining and limiting the falling ball, and the first limiting slot defines the first limiting slot. Fixed position; and/or,

   The carrier board is provided with a second limiting slot for clamping and fixing the product to be tested, and the second limiting slot defines the second fixing position.
7. The falling ball testing machine according to claim 6, wherein the peripheral edge of the first limiting groove is gradually inclined downward in a direction close to the first limiting groove; and/or,

   At least two of the first limiting grooves are provided on opposite sides corresponding to the second fixing position.
8. 4. The falling ball testing machine according to claim 4, wherein the transfer mechanism further comprises a limit plate arranged on a peripheral side of the carrier plate.
9. The falling ball testing machine according to any one of claims 4 to 8, wherein the falling ball testing machine further comprises a first sensor, and the first sensor is arranged on the base and is positioned on the falling ball. It is triggered when it is placed in the first fixed position and the product to be tested is placed in the second fixed position;

   The controller is electrically connected to the first sensor and the first driver, so as to control the operation of the first driver when receiving a sensing signal triggered by the second sensor.
10. The falling ball testing machine according to any one of claims 1 to 8, wherein the falling ball testing machine further comprises a second sensor arranged at a predetermined position in the falling and rising strokes of the falling ball, so The preset position is set close to the test station, and the second sensor is used to be triggered when the falling ball falls to the preset position;

    The controller is electrically connected to the second sensor and the driving device, so as to control the operation of the driving device when receiving a sensing signal triggered by the second sensor.
11. The falling ball testing machine according to any one of claims 4 to 8, wherein the picking mechanism comprises:

    The picking part is movably arranged on the machine base along the up and down direction, and can pick up and release the falling ball setting;

    A second driver for driving the pickup part to pick up and release the falling ball; and,

    The third driver is used to drive the pickup part to move up and down.

Images