A chip resistor testing device

Abstract

This utility model relates to a chip resistor testing device, comprising a first conveying device, multiple chip resistor frames distributed in front of the first conveying device, a second conveying device located to the right of the first conveying device, two motors driving the first conveying device, a first U-shaped plate fixed to the left and right sides of the first conveying device, a first electric push rod fixed to the front of the first U-shaped plate, and a collection box placed to the right of the second conveying device. In this chip resistor testing device, the chip resistor frames are conveyed to the collection box. The first chip resistor frame moves to the surface of a tray, lowering the tray and facilitating the collection of subsequent chip resistor frames. When a certain number of chip resistor frames have been collected, an infrared ranging sensor transmits a signal to the main controller, triggering an alarm to remind personnel to remove the chip resistor frames. Stable stacking of the chip resistor frames prevents damage to the chip resistors during recycling, reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of chip resistor testing technology, specifically to a chip resistor testing device. Background Technology

[0002] Surface mount resistors, also known as chip resistors, are a type of metal-glass enamel resistor. They are made by mixing metal powder and glass enamel powder and then screen printing the mixture onto a substrate. In current chip resistor manufacturing processes, the resistance value is typically tested by clamping wires between the two ends of the resistor to verify its quality. However, this testing method is prone to errors due to human factors, resulting in extremely low testing efficiency and impacting production capacity.

[0003] For example, Chinese patent CN219201769U discloses a chip resistor testing device. The chip resistor testing device includes a frame, a conveyor belt at the top of the frame, one end of the conveyor belt as a feeding end, and the other end of the frame as a discharging end. A placement seat is provided on the conveyor belt, and a placement groove is opened on the inner side of the placement seat. A pin seat is provided at the top of the middle part of the frame, and a test pin is provided on the pin seat. A push plate is provided on the side of the frame near the discharging end, and a storage box is provided on the other side of the frame near the discharging end, and a storage groove is opened on the storage box.

[0004] The aforementioned chip resistor testing equipment still has certain shortcomings. While it shortens the conveying time and improves the overall production efficiency of chip resistors by integrating the conveying of qualified chip resistors to the next process, it is easy for unqualified chip resistors to tilt and fall into the storage box when pushing them. If there are multiple chip resistors, they may collide with each other and be damaged, resulting in cost losses. Therefore, this application proposes a chip resistor testing equipment to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a chip resistor testing device that has advantages such as improving the stability of chip resistor collection and solving the problem that multiple chip resistors may collide with each other and thus damage the chip resistors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chip resistor testing device, comprising a first conveying device, a plurality of chip resistor frames distributed on the front side of the first conveying device, a second conveying device located on the right side of the first conveying device, two motors driving the first conveying device, a first U-shaped plate fixed on the left and right sides of the first conveying device, a first electric push rod fixed on the front side of the first U-shaped plate, and a collection box placed on the right side of the second conveying device. The right side of the first conveying device is provided with a transmission mechanism, and the transmission mechanism includes a transmission component, a positioning component, and a collection component. A test pin device is fixed on the outside of the output shaft of the first electric push rod, and a push plate is fixed on the outside of the output shaft of the second electric push rod.

[0007] The collection assembly includes a bent plate disposed on the front side of the collection box, a third electric push rod fixed to the front side of the bent plate, an extension rod fixed to the outer side of the output shaft of the third electric push rod, a connecting plate fixed to the back side of the extension rod, a tray for stacking multiple surface mount resistor frames fixed to the left side of the connecting plate, an alarm fixed to the front side of the bent plate, and a box door hinged to the bottom of the collection box.

[0008] Furthermore, the pusher plate is located in front of the first conveying device, the left side of the collection box is provided with a recycling groove for conveying the patch resistor frame into it, the right side of the collection box is provided with a positioning groove for the connecting plate to move back and forth, and an infrared ranging sensor is provided on the front side wall of the inner cavity of the collection box.

[0009] Furthermore, the transmission assembly includes a connecting rod fixed to the outside of the upper motor output shaft, a first gear fixed to the outside of the connecting rod, a second gear meshing with the outside of the first gear, a connecting rod fixed inside the second gear, and a chain sleeved on the outside of the connecting rod;

[0010] The positioning assembly includes a second U-shaped plate fixed to the front and rear sides of the second conveying device. Two mounting plates are fixed to the front side of the second U-shaped plate and near its upper and lower sides. Mounting rods are rotatably connected to the opposite sides of the two mounting plates. Reciprocating screws are fixed to the opposite ends of the two mounting rods. The same connecting rod is fixed to the opposite ends of the two reciprocating screws. Movable sleeves are threaded to the outer sides of the two reciprocating screws. Positioning plates are connected to the back sides of the two movable sleeves.

[0011] Furthermore, the front side of the second U-shaped plate is provided with a limiting groove for the two movable sleeves to move vertically up and down, and the two positioning plates are arranged horizontally and parallel to each other.

[0012] Furthermore, a connecting seat is fixed to the right side of the first U-shaped plate, and the connecting rod is rotatably connected inside the connecting seat via a bearing.

[0013] Furthermore, sprockets are fixed to the outer sides of both the connecting rod and the upper mounting rod, and the chain drive is connected to the outer sides of the two sprockets.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] In this surface mount resistor testing device, when the surface mount resistor frames are transferred to the collection box, the first frame moves to the surface of the tray. At this time, the third electric push rod extends its output shaft, lowering the tray to reduce the height of the surface mount resistor frames, facilitating the collection of subsequent frames. Once a certain number of frames have been collected, an infrared ranging sensor transmits a signal to the main controller, triggering an alarm to remind staff to remove the frames. By stably stacking the frames, damage to the surface mount resistors during recycling can be avoided, reducing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 A bottom view of the collecting components in the transmission mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the transmission component and positioning component in the transmission mechanism of this utility model.

[0019] In the diagram: 1 First conveying device, 2 Transmission mechanism, 201 Connecting rod, 202 First gear, 203 Second gear, 204 Connecting rod, 205 Chain, 206 Second U-shaped plate, 207 Mounting plate, 208 Mounting rod, 209 Reciprocating screw, 210 Movable sleeve, 211 Linking rod, 212 Positioning plate, 213 Alarm, 214 Bending plate, 215 Third electric push rod, 216 Extension rod, 217 Connecting plate, 218 Support plate, 3 Collection box, 4 Motor, 5 First U-shaped plate, 6 First electric push rod, 7 Second electric push rod, 8 Push plate, 9 Patch resistor frame, 10 Second conveying device. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1A chip resistor testing device in this embodiment includes a first conveying device 1, multiple chip resistor frames 9 distributed on the front side of the first conveying device 1, a second conveying device 10 located on the right side of the first conveying device 1, two motors 4 driving the first conveying device 1, a first U-shaped plate 5 fixed on the left and right sides of the first conveying device 1, a first electric push rod 6 fixed on the front side of the first U-shaped plate 5, and a collection box 3 placed on the right side of the second conveying device 10. A transmission mechanism 2 is provided on the right side of the first conveying device 1, and the transmission mechanism 2 includes a transmission component, a positioning component, and a collection component. A test pin device is fixed on the outside of the output shaft of the first electric push rod 6, and a push plate 8 is fixed on the outside of the output shaft of the second electric push rod 7.

[0022] The push plate 8 is located in front of the first conveying device 1, and a recycling trough is provided on the left side of the collection box 3 for conveying the patch resistor frame 9 into it.

[0023] It is understandable that multiple chip resistors are placed inside multiple chip resistor frames 9 and placed on the surface of the first conveying device 1, and conveyed at certain intervals. When the chip resistors move to the test area of ​​the test pin device, the test pin device tests the chip resistors. When the chip resistors that fail the test are pushed to the surface of the second conveying device 10 by the second electric push rod 7.

[0024] Please see Figures 2 to 3 In this embodiment, the collection assembly includes a bent plate 214 disposed on the front side of the collection box 3, a third electric push rod 215 fixed on the front side of the bent plate 214, an extension rod 216 fixed on the outer side of the output shaft of the third electric push rod 215, a connecting plate 217 fixed on the back side of the extension rod 216, a tray 218 for stacking multiple patch resistor frames 9 fixed on the left side of the connecting plate 217, an alarm 213 fixed on the front side of the bent plate 214, and a box door hinged to the bottom of the collection box 3.

[0025] The transmission assembly includes a connecting rod 201 fixed to the outside of the output shaft of the upper motor 4, a first gear 202 fixed to the outside of the connecting rod 201, a second gear 203 meshing with the outside of the first gear 202, a connecting rod 204 fixed inside the second gear 203, and a chain 205 sleeved on the outside of the connecting rod 204.

[0026] The positioning assembly includes a second U-shaped plate 206 fixed to the front and rear sides of the second conveying device 10. Two mounting plates 207 are fixed to the front side of the second U-shaped plate 206 and near its upper and lower sides. Mounting rods 208 are rotatably connected to opposite sides of each mounting plate 207. Reciprocating screws 209 are fixed to opposite ends of each mounting rod 208. A common connecting rod 211 is fixed to opposite ends of each reciprocating screw 209. Movable sleeves 21 are threaded onto the outer sides of each reciprocating screw 209. 0. The threads of the two reciprocating lead screws 209 are opposite. When they are driven to move, the movable sleeves 210 on the outer sides of the two reciprocating lead screws 209 will move relative to each other or away from each other. The back side of each movable sleeve 210 is connected to a positioning plate 212. Through the transmission of the first gear 202, the second gear 203 and the chain 205, the two reciprocating lead screws 209 start to move away from each other. When they move to the farthest point, they move relative to each other. The positioning plate 212 is used to correct the position of the chip resistor frame 9.

[0027] The right side of the collection box 3 has a positioning groove for the connecting plate 217 to move back and forth. An infrared ranging sensor is installed on the front side wall of the inner cavity of the collection box 3. The front side of the second U-shaped plate 206 has a limiting groove for the two movable sleeves 210 to move vertically up and down. The two positioning plates 212 are horizontal and parallel to each other. When the chip resistor frame 9 is transferred into the collection box 3, the first chip resistor frame 9 will move to the surface of the tray 218. At this time, the third electric push rod 215 will extend its output shaft, so that the position of the tray 218 is lowered by the height of the chip resistor frame 9, which facilitates subsequent chip placement. The collection of resistor frames 9 involves a connecting seat fixed to the right side of the first U-shaped plate 5. The connecting rod 204 is rotatably connected to the inside of the connecting seat via a bearing. Both the connecting rod 204 and the outer side of the upper mounting rod 208 are fixed with sprockets. The chain 205 is connected to the outer side of the two sprockets. When a certain number of surface mount resistor frames 9 are collected, the infrared ranging sensor transmits a signal to the main controller, causing the alarm 213 to sound an alarm to remind the staff to remove the surface mount resistor frames 9. By stably stacking the surface mount resistor frames 9, damage to the surface mount resistors during recycling can be avoided, reducing cost losses.

[0028] Understandably, when the surface mount resistor frame 9 is transferred to the collection box 3, the first surface mount resistor frame 9 will move to the surface of the tray 218. At this time, the third electric push rod 215 will extend its output shaft, so that the position of the tray 218 is lowered by the height of the surface mount resistor frame 9, which facilitates the collection of subsequent surface mount resistor frames 9. When a certain number of surface mount resistor frames 9 are collected, the infrared ranging sensor transmits a signal to the main controller, causing the alarm 213 to sound an alarm to remind the staff to take out the surface mount resistor frames 9. By stably stacking the surface mount resistor frames 9, damage to the surface mount resistors can be avoided during recycling, reducing cost losses.

[0029] The working principle of the above embodiments is as follows:

[0030] When the chip resistor testing equipment is needed, multiple chip resistors are placed inside multiple chip resistor frames 9 and placed on the surface of the first conveying device 1, and conveyed at certain intervals. When the chip resistors move to the testing area of ​​the testing pin device, the testing pin device tests the chip resistors. When a chip resistor fails the test, it is pushed to the surface of the second conveying device 10 by the second electric push rod 7. At the same time, the transmission of the first gear 202, the second gear 203 and the chain 205 causes the two reciprocating screws 209 to start moving in opposite directions. When they move to their farthest points, they move relative to each other, using the positioning plate 2. 12. The position of the surface mount resistor frame 9 is corrected. When the surface mount resistor frame 9 is transferred to the collection box 3, the first surface mount resistor frame 9 will move to the surface of the tray 218. At this time, the third electric push rod 215 will extend its output shaft, so that the position of the tray 218 is lowered by the height of the surface mount resistor frame 9, which facilitates the collection of subsequent surface mount resistor frames 9. When a certain number of surface mount resistor frames 9 are collected, the infrared ranging sensor transmits a signal to the main controller, so that the alarm 213 alarms to remind the staff to take out the surface mount resistor frames 9. By stably stacking the surface mount resistor frames 9, damage to the surface mount resistors can be avoided during recycling, reducing cost losses.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chip resistor testing device, comprising a first conveying device (1), a second electric push rod (7), a plurality of chip resistor frames (9) distributed on the front side of the first conveying device (1), a second conveying device (10) located on the right side of the first conveying device (1), two motors (4) driving the first conveying device (1), a first U-shaped plate (5) fixed on the left and right sides of the first conveying device (1), a first electric push rod (6) fixed on the front side of the first U-shaped plate (5), and a collection box (3) placed on the right side of the second conveying device (10), characterized in that: The first conveying device (1) is provided with a transmission mechanism (2) on the right side, and the transmission mechanism (2) includes a transmission component, a positioning component and a collection component. The outer side of the output shaft of the first electric push rod (6) is fixed with a test pin device, and the outer side of the output shaft of the second electric push rod (7) is fixed with a push plate (8). The collection assembly includes a bent plate (214) disposed on the front side of the collection box (3), a third electric push rod (215) fixed on the front side of the bent plate (214), an extension rod (216) fixed on the outer side of the output shaft of the third electric push rod (215), a connecting plate (217) fixed on the back side of the extension rod (216), a tray (218) for stacking multiple chip resistor frames (9) fixed on the left side of the connecting plate (217), an alarm (213) fixed on the front side of the bent plate (214), and a box door hinged to the bottom of the collection box (3).

2. The chip resistor testing device according to claim 1, characterized in that: The push plate (8) is located in front of the first conveying device (1). The left side of the collection box (3) is provided with a recycling groove for conveying the patch resistor frame (9) into its interior. The right side of the collection box (3) is provided with a positioning groove for the connecting plate (217) to move back and forth. An infrared ranging sensor is provided on the front side wall of the inner cavity of the collection box (3).

3. The chip resistor testing device according to claim 1, characterized in that: The transmission assembly includes a connecting rod (201) fixed to the outside of the output shaft of the upper motor (4), a first gear (202) fixed to the outside of the connecting rod (201), a second gear (203) meshing with the outside of the first gear (202), a connecting rod (204) fixed inside the second gear (203), and a chain (205) sleeved on the outside of the connecting rod (204). The positioning assembly includes a second U-shaped plate (206) fixed to the front and rear sides of the second conveying device (10). Two mounting plates (207) are fixed to the front side of the second U-shaped plate (206) and near its upper and lower sides. Mounting rods (208) are rotatably connected to the opposite side of the two mounting plates (207). Reciprocating screws (209) are fixed to the opposite ends of the two mounting rods (208). The same connecting rod (211) is fixed to the opposite ends of the two reciprocating screws (209). Movable sleeves (210) are threaded to the outer sides of the two reciprocating screws (209). Positioning plates (212) are connected to the back sides of the two movable sleeves (210).

4. The chip resistor testing device according to claim 3, characterized in that: The front side of the second U-shaped plate (206) is provided with a limiting groove for the two movable sleeves (210) to move vertically up and down, and the two positioning plates (212) are arranged horizontally and parallel to each other.

5. The chip resistor testing device according to claim 3, characterized in that: A connecting seat is fixed on the right side of the first U-shaped plate (5), and the connecting rod (204) is rotatably connected to the inside of the connecting seat through a bearing.

6. The chip resistor testing device according to claim 3, characterized in that: Both the connecting rod (204) and the upper mounting rod (208) are fixed with sprockets on their outer sides, and the chain (205) is driven to be connected to the outer sides of the two sprockets.

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