An automatic chip changing device for LED hot and cold impact machine

Abstract

The invention discloses an automatic chip changing device for an LED hot and cold impact machine, which at least comprises a platform base, a fixed plate, a rotating shaft, a rotating disk, a large synchronous pulley, a light-through tube, a stepping motor, a small synchronous pulley and a synchronous belt. The platform base is connected to the fixed plate through a screw connecting column, and the upper part of the rotating shaft is connected to the rotating disk. A large synchronous pulley is arranged above the rotating disk, and the large synchronous pulley is fixed to the rotating shaft; the fixed plate and the light-through tube are welded together, a stepping motor is installed on the fixed plate, a small synchronous pulley is installed on the stepping motor, and the small synchronous pulley is connected to the large synchronous pulley through a synchronous belt; the rotating disk is provided with 5 groups of LED chip slots evenly distributed along the circumferential direction, and each LED chip slot is provided with 2 contacts and 2 spring pressure sheets; the spring sheet block is fixed on the fixed plate, and when the rotating disk rotates, the contact contacts the spring sheet block, and the two ends of the spring sheet block are connected, and the rotating disk stops rotating. After a group of data is tested, the rotating disk rotates to the next LED chip slot.

Description

Technical Field

[0001] The invention relates to the field of LED chip fluorescence hot and cold shock testing, and in particular to an automatic chip changing device for an LED hot and cold shock machine. Background Art

[0002] At present, in the existing LED chip fluorescence hot and cold shock test process, only one chip can be tested at a time. The specific operation is as follows:

[0003] Step 1: Open the LED chip cover and place the LED chip in the corresponding test slot;

[0004] Step 2: Solder the LED chip power line, put on the LED chip cover, and tighten the two screws on the chip cover;

[0005] Step 3: Adjust the temperature to test the performance of LED chips at different temperatures;

[0006] Step 4: Open the cover, take out the LED chip, and solder the chip power supply;

[0007] Step 5: Perform comparative experiments on different LED chips and repeat the above four steps. Generally, to ensure the accuracy of the experiment, test at least 5 to 10 times.

[0008] As can be seen from the above, the process of conducting comparative experiments in the existing LED chip fluorescence thermal shock test is cumbersome and complicated, which greatly reduces the test efficiency of the experiment. Summary of the invention

[0009] In order to overcome the deficiencies in the prior art, the present invention provides an automatic chip changing device for an LED hot and cold shock machine, which can perform 5 groups of comparative experiments in a single experiment without welding, thereby improving the test efficiency and reducing unnecessary troubles for LED chip testers.

[0010] In order to achieve the above-mentioned invention object, the technical solution adopted to solve the technical problem is as follows:

[0011] An automatic chip changing device for an LED hot and cold impact machine includes a platform base, a screw connecting column, a fixing plate, a deep groove ball bearing, a rotating shaft, a rotating disk, a large synchronous pulley, a light-passing cylinder, a stepping motor, a small synchronous pulley and a synchronous belt, wherein:

[0012] The platform base is connected to the fixed plate through the screw connecting column, and a deep groove ball bearing groove is provided at the lower end of the fixed plate, and a deep groove ball bearing is placed in the deep groove ball bearing groove, and the deep groove ball bearing cooperates with the rotating shaft, and the deep groove ball bearing is fixed in the deep groove ball bearing groove by a nut below the rotating shaft, and a keyway is provided above the rotating shaft and connected to the rotating disk, and a large synchronous pulley is installed above the rotating disk, and the large synchronous pulley is fixed to the rotating shaft through a key; the fixed plate and the light-through cylinder are welded together, and the fixed plate is provided with a motor mounting hole, and a stepping motor is installed in the motor mounting hole, and the stepping motor A small synchronous pulley is installed on the motor, and the small synchronous pulley is connected to the large synchronous pulley through a synchronous belt; the rotating disk includes an LED chip slot, a contact, a spring pressure piece and a spring sheet block, and the rotating disk is provided with 5 groups of LED chip slots evenly distributed along the circumferential direction, and each LED chip slot is provided with 2 contacts and 2 spring pressure pieces; the spring sheet block is fixed to the fixed plate by screws, and when the rotating disk rotates, the contact contacts the spring sheet block, the two ends of the spring sheet block are connected, and the rotating disk stops rotating. After testing a set of data, the rotating disk starts first and rotates to the next LED chip slot.

[0013] Furthermore, the light-through tube passes through the fixing plate and is welded to the fixing plate, and a flange is welded below the light-through tube.

[0014] Furthermore, a probe tube is welded on the side of the light-transmitting tube, and a stepped slot is provided at the outer opening of the probe tube.

[0015] Furthermore, a shell is provided above the platform base, and the shell includes a left baffle, a right baffle, a front baffle, a rear baffle and an upper cover, wherein:

[0016] The left baffle, the right baffle, the front baffle and the rear baffle are fixed on the platform base, and adjacent baffles are bonded together;

[0017] The upper cover plate is connected to the front baffle plate through two hinges.

[0018] Furthermore, a probe hole is provided on the front baffle, and the position of the probe hole corresponds to the position of the probe tube, and is used for placing a spectrum probe during testing.

[0019] Preferably, two screw connecting columns are connected between the platform base and the fixing plate and are fixed in a diagonally distributed manner.

[0020] Furthermore, the rotating disk is connected to the fixed plate through the rotating shaft, the rotating shaft is provided with a shoulder and a keyway, the shoulder is connected to the fixed plate, the keyway is provided with two upper and lower keyways, namely an upper keyway and a lower keyway, the upper keyway cooperates with the large synchronous pulley, and the lower keyway cooperates with the rotating disk.

[0021] Furthermore, the rotating disk is provided with 5 groups of contacts evenly distributed along the circumferential direction, a wiring groove is provided in the middle of each group of contacts, and the contacts are connected to the spring pressing sheet through the wiring groove.

[0022] Furthermore, the spring sheet block includes a spring sheet and a fixed block. The shape of the spring sheet is set to be trapezoidal. The spring sheet is fixed to a side of the fixed block facing the rotating disk.

[0023] Preferably, the spring pressing sheet is made of copper.

[0024] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0025] An automatic chip changing device for a LED hot and cold impact machine using the above solution can automatically align the LED chip to the light tube, thereby increasing the number of single experimental groups in comparative experiments and greatly improving experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0027] Figure 1 It is a stereoscopic diagram of the overall assembly of an automatic chip changing device for an LED hot and cold impact machine of the present invention;

[0028] Figure 2 This is the overall assembly front view of an automatic chip changing device for an LED hot and cold impact machine of the present invention;

[0029] Figure 3 It is the overall assembly right view of an automatic chip changing device for an LED hot and cold impact machine of the present invention;

[0030] Figure 4 It is a top view of the overall assembly of an automatic chip changing device for an LED hot and cold impact machine of the present invention;

[0031] Figure 5 It is a three-dimensional diagram of the internal structure of an automatic chip changing device of an LED hot and cold impact machine of the present invention;

[0032] Figure 6 This is a front view of the internal structure of an automatic chip changing device for an LED hot and cold impact machine of the present invention;

[0033] Figure 7It is a right view of the internal structure of an automatic chip changing device of an LED hot and cold impact machine of the present invention;

[0034] Figure 8 It is a top view of the internal structure of an automatic chip changing device of an LED hot and cold impact machine of the present invention;

[0035] Fig. 9 It is a partial cross-sectional view of an automatic chip changing device of an LED hot and cold impact machine of the present invention.

[0036]

Explanation of main symbols

[0037] 1- platform base; 2- screw connecting column; 3- fixing plate; 4- deep groove ball bearing groove; 5- deep groove ball bearing; 6- rotating shaft; 7- nut; 8- rotating disk; 9- large synchronous pulley; 10- light tube; 11- stepping motor; 12- small synchronous pulley; 13- synchronous belt; 14- LED chip slot; 15- contact; 16- spring pressure plate; 17- spring sheet block; 18- flange; 19- probe tube; 20- left baffle; 21- right baffle; 22- front baffle; 23- rear baffle; 24- upper cover; 25- hinge; 26- probe hole. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings of the present invention to clearly and completely describe and discuss the technical solutions in the embodiments of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all of the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, not to limit the present invention. In the figures, units with similar structures are represented by the same reference numerals.

[0039] like Figure 1-9 As shown, the present invention discloses an automatic chip changing device for an LED hot and cold impact machine, comprising a platform base 1, a screw connecting column 2, a fixing plate 3, a deep groove ball bearing 5, a rotating shaft 6, a rotating disk 8, a large synchronous pulley 9, a light-passing cylinder 10, a stepping motor 11, a small synchronous pulley 12 and a synchronous belt 13, wherein:

[0040] The platform base 1 is connected to the fixed plate 3 through the screw connecting column 2. A deep groove ball bearing groove 4 is provided at the lower end of the fixed plate 3. A deep groove ball bearing 5 is placed in the deep groove ball bearing groove 4. The deep groove ball bearing 5 cooperates with the rotating shaft 6. The deep groove ball bearing 5 is fixed in the deep groove ball bearing groove 4 by a nut 7 below the rotating shaft 6. A keyway is provided on the top and is connected to the rotating disk 8. A large synchronous pulley 9 is installed on the rotating disk 8, and the large synchronous pulley 9 is fixed to the rotating shaft 6 through a key; the fixed plate 3 and the light-transmitting tube 10 are welded together, and the fixed plate 3 is provided with a motor mounting hole (not shown in the figure), and a stepper motor 11 is installed in the motor mounting hole. A small synchronous pulley 12 is installed, and the small synchronous pulley 12 is connected to the large synchronous pulley 9 through a synchronous belt 13; the rotating disk 8 includes an LED chip slot 14, a contact 15, a spring pressure piece 16 and a spring piece block 17, and the rotating disk 8 is provided with 5 groups of LED chip slots 14 evenly distributed along the circumferential direction, and each LED chip slot 14 is provided with 2 contacts 15 and 2 spring pressure pieces 16; the spring piece block 17 is fixed to the fixed plate 3 by screws, and when the rotating disk 8 rotates, the contact 15 contacts the spring piece block 17, and the two ends of the spring piece block 17 are connected, and the rotating disk 8 stops rotating. After testing a set of data, the rotating disk 8 starts first and rotates to the next LED chip slot 14. In this embodiment, the material of the spring pressure piece 16 is copper.

[0041] Specifically, in Fig. 9 In the figure, the upper side of the rotating disk 8 is connected to the large synchronous pulley 9 through the key of the rotating shaft 6, the lower end of the rotating shaft 6 passes through the deep groove ball bearing 5 and forms a revolving pair with the fixed plate 3, and the lower end of the rotating shaft 6 is fixed to the rotating shaft 6 by a nut 7.

[0042] Furthermore, the light tube 10 passes through the fixing plate 3 and is welded to the fixing plate 3, and a flange 18 is welded below the light tube 10. A probe tube 19 is welded to the side of the light tube 10, and a stepped slot (not shown) is provided at the outer opening of the probe tube 19.

[0043] refer to Figure 1-4 A housing is disposed above the platform base 1, and the housing includes a left baffle 20, a right baffle 21, a front baffle 22, a rear baffle 23 and an upper cover 24. The left baffle 20, the right baffle 21, the front baffle 22 and the rear baffle 23 are fixed on the platform base 1, and adjacent baffles are bonded together; the upper cover 24 is connected to the front baffle 22 via two hinges 25. In this embodiment, the housing is provided to prevent dust from affecting the machine on the one hand, and to prevent light leakage on the other hand, and the upper cover 24 is provided to facilitate the placement of LED chips and improve the test efficiency.

[0044] Furthermore, a probe hole 26 is provided on the front baffle 22 . The position of the probe hole 26 corresponds to the position of the probe tube 19 , and is used for placing a spectrum probe during testing.

[0045] Preferably, two screw connection columns 2 are connected between the platform base 1 and the fixing plate 3 and are fixed in a diagonally distributed manner.

[0046] In this embodiment, the rotating disk 8 is connected to the fixed plate 3 through the rotating shaft 6. The rotating shaft 6 is provided with a shoulder (not shown) and a keyway (not shown). The shoulder is connected to the fixed plate 3. The keyway is provided with two upper and lower keyways, namely an upper keyway and a lower keyway. The upper keyway cooperates with the large synchronous pulley 9, and the lower keyway cooperates with the rotating disk 8.

[0047] Combination Figure 5 and 8 The rotating disk 8 is provided with 5 groups of contacts 15 evenly distributed along the circumferential direction, and a wiring groove (not shown) is provided in the middle of each group of contacts 15. The contacts 15 are connected to the spring pressing plate 16 through the wiring groove.

[0048] Figure 8 In the figure, the spring sheet block 17 includes a spring sheet (not marked) and a fixed block (not marked), the shape of the spring sheet is set to be trapezoidal, and the spring sheet is fixed to the side of the fixed block facing the rotating disk 8.

[0049] Specific installation method:

[0050] like Figure 5-8 This is the internal structure diagram of the automatic chip changing device of the LED hot and cold impact machine. The whole can be divided into 4 parts from bottom to top. The lowest part is the platform base 1, followed by the upper part of the light tube 10 and the fixed plate 3, above the fixed plate 3 is the rotating disk 8, above the rotating disk 8 are two synchronous pulleys, and finally the stepping motor 11. The platform base 1 is fixed diagonally to the fixed plate 3 by a screw connecting column 2, and the stepper motor 11 is installed on the fixed plate 3. A small synchronous pulley 12 is installed on the stepper motor 11. The small synchronous pulley 12 is connected to the large synchronous pulley 9 through a synchronous belt 13 for transmission. The large synchronous pulley 9 drives the rotating disk 8 through the rotating shaft 6. The spring sheet 17 is fixed to the fixed plate 3 by two screws. The rotating disk 8 is provided with 5 groups of LED chip test stations evenly distributed around the circumference. Each test station has two spring pressing sheets 16. The spring pressing sheet 16 is pressed on two pins of the LED chip. The contact 15 is connected to the spring pressing sheet 16 through a wiring groove. When the rotating disk 8 rotates, the contact 15 contacts the spring sheet 17, and the two ends of the spring sheet 17 are connected. The rotating disk 8 stops rotating. After testing a set of data, the first turntable starts and rotates to the next LED chip test station.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic chip changing device for a LED hot and cold impact machine, characterized in that: It includes a platform base, a screw connecting column, a fixing plate, a deep groove ball bearing, a rotating shaft, a rotating disk, a large synchronous pulley, a light-passing cylinder, a stepping motor, a small synchronous pulley and a synchronous belt, among which: The platform base is connected to the fixed plate through the screw connecting column, and a deep groove ball bearing groove is provided at the lower end of the fixed plate, and a deep groove ball bearing is placed in the deep groove ball bearing groove, and the deep groove ball bearing cooperates with the rotating shaft, and the deep groove ball bearing is fixed in the deep groove ball bearing groove by a nut below the rotating shaft, and a keyway is provided above the rotating shaft and connected to the rotating disk, and a large synchronous pulley is installed above the rotating disk, and the large synchronous pulley is fixed to the rotating shaft through a key; the fixed plate and the light-through cylinder are welded together, and the fixed plate is provided with a motor mounting hole, and a stepping motor is installed in the motor mounting hole, and the stepping motor A small synchronous pulley is installed on the motor, and the small synchronous pulley is connected to the large synchronous pulley through a synchronous belt; the rotating disk includes an LED chip slot, a contact, a spring pressure piece and a spring piece block, and the rotating disk is provided with 5 groups of LED chip slots evenly distributed along the circumferential direction, and each LED chip slot is provided with 2 contacts and 2 spring pressure pieces; the spring piece block is fixed to the fixed plate by screws, and when the rotating disk rotates, the contact contacts the spring piece block, and the two ends of the spring piece block are connected, and the rotating disk stops rotating. After testing a set of data, the rotating disk starts first and rotates to the next LED chip slot; The rotating disk is connected to the fixed plate through the rotating shaft, the rotating shaft is provided with a shaft shoulder and a keyway, the shaft shoulder is connected to the fixed plate, the keyway is provided with two upper and lower keyways, namely an upper keyway and a lower keyway, the upper keyway cooperates with the large synchronous pulley, and the lower keyway cooperates with the rotating disk; The rotating disk is provided with 5 groups of contacts evenly distributed along the circumferential direction, and a wiring groove is provided in the middle of each group of contacts, and the contacts are connected to the spring pressing sheet through the wiring groove.

2. The automatic chip changing device for LED hot and cold impact machine according to claim 1, characterized in that: The light-through cylinder passes through the fixing plate and is welded to the fixing plate, and a flange is welded below the light-through cylinder.

3. The automatic chip changing device for LED hot and cold impact machine according to claim 2, characterized in that: A probe tube is welded on the side of the light-transmitting tube, and a stepped slot is arranged at the outer opening of the probe tube.

4. The automatic chip changing device for LED hot and cold impact machine according to claim 3, characterized in that: A shell is arranged above the platform base, and the shell includes a left baffle, a right baffle, a front baffle, a rear baffle and an upper cover plate, wherein: The left baffle, the right baffle, the front baffle and the rear baffle are fixed on the platform base, and adjacent baffles are bonded together; The upper cover plate is connected to the front baffle plate through two hinges.

5. The automatic chip changing device for LED hot and cold impact machine according to claim 4, characterized in that: The front baffle is provided with a probe hole, the position of which corresponds to the position of the probe tube, and is used for placing a spectrum probe during testing.

6. The automatic chip changing device for LED hot and cold impact machine according to claim 1, characterized in that: Two screw connecting columns are connected between the platform base and the fixing plate and are fixed in a diagonally distributed manner.

7. The automatic chip changing device for LED hot and cold impact machine according to claim 1, characterized in that: The spring sheet block comprises a spring sheet and a fixed block. The shape of the spring sheet is set to be trapezoidal. The spring sheet is fixed to a side of the fixed block facing the rotating disk.

8. The automatic chip changing device for LED hot and cold impact machine according to claim 1, characterized in that: The material of the spring pressing sheet is copper.

Images