Automatic spot welding device for thermistor chip

Abstract

The application discloses an automatic spot welding device for a thermistor chip, which comprises a base, two vertical plates are fixedly connected to the upper surface of the base, a driving motor is fixedly installed on the back surface of one vertical plate, a group of first bearings are fixedly embedded on the side surface of each vertical plate which is close to the other, the clamps are synchronously pushed to be close to each other through the setting of the spot welding mechanism and the driving of two first electric push rods, then the chip can be clamped and fixed, the chip is prevented from deviating during the spot welding process, the chip is automatically spot welded, manual positioning and spot welding of the chip are not needed, the push plate is pushed to move rightwards through the setting of a second electric push rod, the two rotating rods and the conveying belt are rotated through the driving of the driving motor, the chip can be pushed onto the conveying belt, the chip which is completed with the spot welding is conveyed rightwards to be collected, and manual transfer of the chip is not needed.

Description

Technical Field

[0001] This application relates to the field of resistor chip spot welding technology, and in particular to an automatic spot welding device for thermistor chips. Background Technology

[0002] A thermistor chip is a semiconductor ceramic chip with temperature-sensitive characteristics. Its core function is to realize temperature detection, temperature compensation, and over-temperature protection by using the characteristic that its resistance value changes with temperature. It is a core temperature sensing element in electronic devices. It is a ceramic chip made of metal oxide as the main raw material, which is mixed, pressed and sintered at high temperature. It is small in size, has a large temperature coefficient of resistance, fast response speed, small size and strong stability.

[0003] Currently, the spot welding of thermistor chips requires manual positioning and spot welding of each chip, which is cumbersome and reduces the efficiency of chip spot welding. Furthermore, after spot welding, the transfer and collection of chips still require manual intervention, resulting in long process transitions and making continuous operation difficult. Therefore, those skilled in the art have provided an automatic spot welding device for thermistor chips to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an automatic spot welding device for thermistor chips to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic spot welding device for a thermistor chip includes a base. Two upright plates are fixedly connected to the upper surface of the base. A drive motor is fixedly installed on the back of one of the upright plates. A set of first bearings is fixedly embedded on the side of the two upright plates that are close to each other. Two rotating rods are fixedly connected to the inner rings of the two sets of first bearings. A conveyor belt is connected to the outer surfaces of the two rotating rods. The rear end of one rotating rod is fixedly installed to the output end of the drive motor. A housing is fixedly installed on the upper surface of the two upright plates. A spot welding mechanism is provided inside the housing. A carrier plate is fixedly installed on the inner wall of the housing. An inclined plate is fixedly connected to the right side of the carrier plate. Two first electric push rods are fixedly installed on the inner wall of the housing. Clamping plates are fixedly installed on the telescopic ends of the two first electric push rods. A connecting plate is fixedly installed on the left side of the housing. A second electric push rod is fixedly installed on the right side of the connecting plate. A push plate is fixedly installed on the telescopic end of the second electric push rod.

[0006] As a further embodiment of this utility model: the spot welding mechanism includes two mounting plates fixedly connected to the top wall of the housing, and a reduction motor is fixedly mounted on the right side of one of the mounting plates.

[0007] As a further embodiment of this utility model: a second bearing is fixedly embedded on one side of each of the two mounting plates that are close to each other, and a screw is fixedly connected to the inner ring of the two second bearings. The right end of the screw is fixedly installed to the output end of the geared motor.

[0008] As a further embodiment of this utility model: a screw block is threadedly connected to the outer surface of the screw, a third electric push rod is fixedly installed on the bottom surface of the screw block, and a welding machine body is fixedly installed on the telescopic end of the third electric push rod.

[0009] As a further improvement of this utility model: the inner top wall of the shell is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to the outer surface of the screw block.

[0010] As a further improvement of this utility model: a protective door is hinged to the front of the housing, and a PLC controller is fixedly installed on the front of the housing.

[0011] As a further improvement of this utility model: a collection hopper is placed on the upper surface of the base, and the bottom surface of the collection hopper is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This automatic spot welding device for thermistor chips, through the setting of the spot welding mechanism, uses two first electric push rods to synchronously push the clamping plates closer to each other, thereby clamping and fixing the chip to ensure that the chip does not shift during the spot welding process. At the same time, it performs automatic spot welding on the chip, eliminating the need for manual positioning and spot welding of each chip individually. The second electric push rod pushes the push plate to the right, and the drive motor drives two rotating rods and the conveyor belt to rotate, thereby pushing the chip onto the conveyor belt. Simultaneously, the spot-welded chips are transported to the right for collection, eliminating the need for manual chip transfer, avoiding long process connection waiting times, and improving the spot welding efficiency of the chip. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of an automatic spot welding device for thermistor chips. Figure 2 A top sectional view of an automatic spot welding device for thermistor chips; Figure 3 A front sectional view of an automatic spot welding device for thermistor chips; Figure 4 This is a side view of an automatic spot welding device for a thermistor chip.

[0014] In the diagram: 1. Base; 2. Vertical plate; 3. Drive motor; 4. First bearing; 5. Rotating rod; 6. Conveyor belt; 7. Housing; 8. Spot welding mechanism; 801. Mounting plate; 802. Gear motor; 803. Second bearing; 804. Screw block; 805. Third electric push rod; 806. Welding machine body; 807. Screw; 9. Carrier plate; 10. Inclined plate; 11. First electric push rod; 12. Clamping plate; 13. Connecting plate; 14. Second electric push rod; 15. Push plate; 16. Protective door; 17. Collection hopper; 18. PLC controller; 19. Slide chute. Detailed Implementation

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Please see Figures 1-4In this embodiment of the utility model, an automatic spot welding device for a thermistor chip includes a base 1. Two upright plates 2 are fixedly connected to the upper surface of the base 1. A drive motor 3 is fixedly installed on the back of one upright plate 2. A set of first bearings 4 are fixedly embedded on the side of the two upright plates 2 that are close to each other. Two rotating rods 5 are fixedly connected to the inner rings of the two sets of first bearings 4. A conveyor belt 6 is connected to the outer surface of the two rotating rods 5. The rear end of one rotating rod 5 is fixedly installed to the output end of the drive motor 3. A housing 7 is fixedly installed on the upper surface of the two upright plates 2. A spot welding mechanism 8 is provided inside the housing 7. A carrier plate 9 is fixedly installed on the inner wall of the housing 7. An inclined plate 10 is fixedly connected to the right side of the carrier plate 9. Two first electric push rods 11 are fixedly installed on the inner wall of the housing 7. Clamping plates 12 are fixedly installed on the telescopic ends of the two first electric push rods 11. Pressure sensors, such as thin-film pressure sensors, are provided inside the two clamping plates 12. The pressure sensors are connected to a PLC controller 18 through signal lines. When the two clamping plates 12 contact the workpiece, the pressure sensor... The force sensor feeds back the pressure value to the PLC controller 18 in real time. The PLC controller 18 controls the two first electric push rods 11 to stop moving according to the preset threshold, realizing closed-loop control of the clamping force. A connecting plate 13 is fixedly installed on the left side of the housing 7, and a second electric push rod 14 is fixedly installed on the right side of the connecting plate 13. A push plate 15 is fixedly installed on the telescopic end of the second electric push rod 14. Through the setting of the spot welding mechanism 8, and by using the two first electric push rods 11 to push the clamping plate 12 closer to each other, the chip can be clamped and fixed, ensuring that the chip does not shift during the spot welding process. At the same time, the chip is automatically spot welded, eliminating the need for manual positioning and spot welding of each chip. The second electric push rod 14 pushes the push plate 15 to move to the right, and the drive motor 3 drives the two rotating rods 5 and the conveyor belt 6 to rotate, which can push the chip onto the conveyor belt 6. At the same time, the spot-welded chip is transported to the right for collection, eliminating the need for manual transfer of the chip, avoiding long process connection waiting time, and improving the spot welding efficiency of the chip.

[0017] The spot welding mechanism 8 includes two mounting plates 801 fixedly connected to the top wall of the housing 7. A geared motor 802 is fixedly mounted on the right side of one mounting plate 801. Second bearings 803 are fixedly embedded on the side of the two mounting plates 801 that are close to each other. The inner rings of the two second bearings 803 are fixedly connected to a screw 807. The right end of the screw 807 is fixedly mounted to the output end of the geared motor 802. A screw block 804 is threadedly connected to the outer surface of the screw 807. A third electric push rod 805 is fixedly mounted on the bottom surface of the screw block 804. The extension end of the third electric push rod 805 is fixedly mounted to the welding machine body 806. With the setting of the spot welding mechanism 8, the geared motor 802 can be started to drive the screw 807 to rotate, which can drive the screw block 804 to move horizontally along the screw 807. When the welding machine body 806 moves to above the chip spot welding position, the third electric push rod 805 can be started to drive the welding machine body 806 to move downward, completing the automatic spot welding operation of the chip.

[0018] The inner top wall of the housing 7 is provided with a sliding groove 19, and the inner wall of the sliding groove 19 is slidably connected to the outer surface of the screw block 804. The front of the housing 7 is hinged with a protective door 16, and a PLC controller 18 is fixedly installed on the front of the housing 7. A collection hopper 17 is placed on the upper surface of the base 1, and the bottom surface of the collection hopper 17 is provided with anti-slip texture. The sliding groove 19 can limit the sliding of the screw block 804 and prevent the screw block 804 from rotating. The protective door 16 can provide protection. The PLC controller 18 can automatically control the device. The collection hopper 17 can collect the spot-welded chips. In addition, the electrical components of this application are all common electrical equipment in the prior art, and this application will not elaborate on their models or internal structures.

[0019] The working principle of this utility model is as follows: First, the thermistor chip is placed at a designated position on the carrier plate 9, and the two first electric push rods 11 are activated to simultaneously push the clamping plate 12 closer to each other to clamp and fix the chip, ensuring that the chip does not shift during the spot welding process. At the same time, the spot welding mechanism 8 is activated to perform automatic spot welding on the chip. After the spot welding is completed, the two first electric push rods 11 drive the clamping plate 12 to reset and release the chip. At the same time, the spot welding mechanism 8 is reset, and the second electric push rod 14 is activated to push the push plate 15 to push the chip onto the inclined plate 10. The chip slides down the inclined plate 10 onto the conveyor belt 6. Then, the drive motor 3 is activated to drive the two rotating rods 5 and the conveyor belt 6 to rotate, and the spot-welded chip is transported to the right until it slides into the collection hopper 17.

[0020] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic spot welding device for a thermistor chip, comprising a base (1), characterized in that, Two upright plates (2) are fixedly connected to the upper surface of the base (1). A drive motor (3) is fixedly installed on the back of one of the upright plates (2). A set of first bearings (4) is fixedly embedded on the side of the two upright plates (2) that are close to each other. Two rotating rods (5) are fixedly connected to the inner rings of the two sets of first bearings (4). A conveyor belt (6) is connected to the outer surface of the two rotating rods (5). The rear end of one of the rotating rods (5) is fixedly installed to the output end of the drive motor (3). A housing (7) is fixedly installed on the upper surface of the two upright plates (2). 7) is equipped with a spot welding mechanism (8). A carrier plate (9) is fixedly installed on the inner wall of the housing (7). An inclined plate (10) is fixedly connected to the right side of the carrier plate (9). Two first electric push rods (11) are fixedly installed on the inner wall of the housing (7). A clamping plate (12) is fixedly installed on the telescopic end of each of the two first electric push rods (11). A connecting plate (13) is fixedly installed on the left side of the housing (7). A second electric push rod (14) is fixedly installed on the right side of the connecting plate (13). A push plate (15) is fixedly installed on the telescopic end of the second electric push rod (14).

2. The automatic spot welding device for a thermistor chip according to claim 1, characterized in that, The spot welding mechanism (8) includes two mounting plates (801) fixedly connected to the top wall of the housing (7), and a geared motor (802) is fixedly mounted on the right side of one of the mounting plates (801).

3. The automatic spot welding device for a thermistor chip according to claim 2, characterized in that, The two mounting plates (801) are each fixedly inlaid with a second bearing (803) on one side that is close to each other. The inner rings of the two second bearings (803) are fixedly connected to a screw (807). The right end of the screw (807) is fixedly installed to the output end of the geared motor (802).

4. The automatic spot welding device for a thermistor chip according to claim 3, characterized in that, The screw (807) is threadedly connected to a screw block (804) on its outer surface. A third electric push rod (805) is fixedly installed on the bottom surface of the screw block (804). The telescopic end of the third electric push rod (805) is fixedly installed with a welding machine body (806).

5. The automatic spot welding device for a thermistor chip according to claim 1, characterized in that, The inner top wall of the housing (7) is provided with a sliding groove (19), and the inner wall of the sliding groove (19) is slidably connected to the outer surface of the screw block (804).

6. The automatic spot welding device for a thermistor chip according to claim 1, characterized in that, The front of the housing (7) is hinged with a protective door (16), and a PLC controller (18) is fixedly installed on the front of the housing (7).

7. The automatic spot welding device for a thermistor chip according to claim 1, characterized in that, A collection hopper (17) is placed on the upper surface of the base (1), and the bottom surface of the collection hopper (17) is provided with anti-slip texture.

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