A pin bending device for producing temperature sensor resistors

Abstract

This invention discloses a pin bending device for producing temperature sensor resistors, including a support base and an inclined guide platform connected to the support base. A position adjustment component is mounted on the inclined guide platform. When the sensor resistor element is placed on the inclined guide platform, the portion of the metal pin to be bent can be clamped by a first bending plate and a second bending plate. Simultaneously, while the first and second bending plates are clamping the metal pin, a first fixing plate and a second fixing plate move in tandem with the first and second bending plates to clamp the remaining portion of the metal pin. This facilitates effective bending of the portion of the metal pin to be bent, avoiding interference with the remaining parts. Furthermore, it eliminates the need for separate limiting and fixing operations on the sensor assembly, saving operation time and improving operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of temperature sensor processing technology, and more specifically to a pin bending device for producing temperature sensor resistors. Background Technology

[0002] Temperature sensors are sensors that can sense temperature and convert it into a usable output signal. Based on the sensor materials and electronic component characteristics, they are divided into two categories: resistance temperature detectors (RTDs) and thermocouples. The resistance of a temperature sensor is connected to the circuit board via pins. Previously, the pins were mostly formed by manual bending, a process where workers used needle-nose pliers to bend the pins. This manual forming process was inefficient. The following improvement schemes exist:

[0003] Chinese Patent Publication No. CN114289633B, entitled "A Lead Bending Device for Temperature Sensor Resistor Production," includes a clamping platform. The clamping platform includes a support platform rotatably mounted on a base. A driving mechanism is provided on the support platform. The support platform also has at least two placement slots, each corresponding to a clamping assembly group. The clamping assembly group includes a first clamping assembly and a second clamping assembly. The leads of the resistor to be processed, after being positioned and fixed by the first and second clamping assemblies, extend from the support platform. A forming mechanism is then used to shape the leads of the resistor extending from the support platform.

[0004] The shortcomings of the existing technical solution are as follows: When processing the resistor pin, it is necessary to first limit one side of the resistor and then limit the other side. The position of the resistor is fixed by limiting both sides of the resistor. Finally, the bending device is operated to move it. The whole bending operation is cumbersome, takes a long time, is not convenient, and results in low efficiency. Although the length of the pin extending out of the support platform can be adjusted, the pin part inside the support platform is not fixed relative to the resistor. When bending, the pin is easy to bend from the root, which cannot meet the processing requirements. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide a pin bending device for producing temperature sensor resistors.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A lead bending device for producing temperature sensor resistors includes a support base, and the lead bending device for producing temperature sensor resistors further includes:

[0008] An inclined guide platform is connected to the support base, and a position adjustment component is provided on the inclined guide platform;

[0009] A first bending plate is disposed on one side of the inclined guide platform. A second electric guide rail is connected to the inclined guide platform. A drive motor is slidably disposed on the second electric guide rail. The main shaft end of the drive motor is connected to one end of the first bending plate. An electric telescopic rod is connected to the other end of the first bending plate. The telescopic end of the electric telescopic rod is connected to the second bending plate. A pressure sensing switch is disposed on the first bending plate. A push-button switch is disposed on the second bending plate.

[0010] A linkage fixing component is disposed on the inclined guide platform and cooperates with the second bending plate.

[0011] As a further aspect of the present invention: the position adjustment component includes a sliding U-shaped frame, the sliding U-shaped frame being arranged parallel to one side of the fixed U-shaped frame, and a first electric guide rail being connected in pairs at both sides of the inclined guide platform, the sliding U-shaped frame being slidably connected to the first electric guide rail.

[0012] As a further aspect of the present invention: a docking cylinder is slidably disposed on the first electric guide rail, and the two ends of the sliding U-shaped frame are respectively inserted into the corresponding docking cylinder.

[0013] As a further embodiment of the present invention: the linkage fixing component includes a fixed U-shaped frame, the fixed U-shaped frame is disposed on the inclined guide platform, the inner bottom of the fixed U-shaped frame is provided with a first fixing clamp plate flush with the first bending plate, the first fixing clamp plate is connected to the housing of the drive motor, a sliding top rod is slidably inserted at the top of the fixed U-shaped frame, the bottom end of the sliding top rod is connected to a second fixing clamp plate aligned with the first fixing clamp plate, an iron block is disposed at the top of the sliding top rod, a magnet block cooperating with the iron block is connected to the second bending plate, and a locking mechanism cooperating with the sliding top rod is disposed on the fixed U-shaped frame.

[0014] As a further aspect of the present invention: the inclined guide platform is provided with slots in pairs, and the two ends of the fixed U-shaped frame are respectively inserted into the corresponding slots.

[0015] As a further aspect of the present invention: the iron block is slidably connected to the sliding top rod, and a first spring is connected between the iron block and the sliding top rod.

[0016] As a further embodiment of the present invention: the locking mechanism includes a mounting groove, the mounting groove being formed on the top of the fixed U-shaped frame, an electromagnet electrically connected to a push-button switch being slidably disposed in the mounting groove, a second spring being connected between the electromagnet and the mounting groove, and the sliding top rod being an iron rod.

[0017] As a further aspect of the present invention: the electromagnet has multiple protrusions distributed on the side near the sliding top rod, and the sliding top rod has multiple fixing grooves that cooperate with the protrusions.

[0018] The beneficial effects of this invention are:

[0019] 1. When the sensor resistive element of the present invention is placed on the inclined guide platform, the part of the metal pin that needs to be bent can be clamped by the first bending plate and the second bending plate. At the same time, during the process of the first bending plate and the second bending plate clamping the metal pin, the first fixing plate and the second fixing plate can move together with the first bending plate and the second bending plate to clamp the remaining part of the metal pin, so that the part of the metal pin that needs to be bent can be effectively bent, avoiding affecting the rest. At the same time, there is no need to perform a separate limiting and fixing operation on the sensor assembly, saving operation time and improving operation efficiency.

[0020] 2. After the sensor resistor element of the present invention is placed on the inclined guide platform, it can slide down the inclined surface of the inclined guide platform to the position of the sliding U-shaped frame, and obtain limiting support. The metal pin can pass through the sliding U-shaped frame to facilitate subsequent bending. At the same time, the sliding U-shaped frame can be moved and adjusted by the first electric guide rail to adjust the length of the metal pin between the first bending plate and the second bending plate, thereby realizing the adjustment of the bending length of the metal pin. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This is a left-view structural schematic diagram showing the relative positional distribution of the second electric guide rail, the first fixed clamping plate, and the fixed U-shaped frame in this invention.

[0025] Figure 4 This is a top view of the structure in which the first bending plate, the first fixing clamp, and the drive motor are connected in this invention.

[0026] Figure 5 This is a top view of the structure in which the sliding U-shaped frame and the first electric guide rail are connected in this invention.

[0027] Figure 6 This is a right-side view of the structure in which the sliding U-shaped frame and the first electric guide rail are connected in this invention.

[0028] In the diagram: 1. Support base; 2. Inclined guide platform; 3. Sensor resistor element; 4. Sliding U-shaped frame; 5. Fixed U-shaped frame; 6. Electric telescopic rod; 7. First bending plate; 8. Pressure sensing switch; 9. Metal pin; 10. Second bending plate; 11. Push button switch; 12. Magnet block; 13. Iron block; 14. First spring; 15. Sliding top rod; 16. Second electric guide rail; 17. Mounting groove; 18. Second spring; 19. Electromagnet; 20. Protruding rod; 21. Fixing groove; 22. Second fixing clamp; 23. Slot; 24. Drive motor; 25. First electric guide rail; 26. Connecting cylinder; 27. First fixing clamp. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-6 As shown, a pin bending device for producing temperature sensor resistors includes a support base 1, an inclined guide platform 2 fixedly connected to the support base 1, a position adjustment component on the inclined guide platform 2, and a sliding U-shaped frame 4. The sliding U-shaped frame 4 is arranged parallel to one side of the fixed U-shaped frame 5. The two sides of the inclined guide platform 2 are connected in pairs to the first electric guide rails 25. The sliding U-shaped frame 4 is slidably connected to the first electric guide rails 25. Specifically, a docking cylinder 26 is slidably arranged on the first electric guide rail 25, and the two ends of the sliding U-shaped frame 4 are respectively inserted into the corresponding docking cylinders 26.

[0031] When it is necessary to bend the metal pins 9 of multiple sensor resistor elements 3, the metal pins 9 of the multiple sensor resistor elements 3 are directly directed toward the lower end of the inclined guide platform 2, and then the sensor resistor elements 3 slide down the inclined surface of the inclined guide platform 2. In this way, the sensor resistor elements 3 are finally blocked by the sliding U-shaped frame 4, and the metal pins 9 pass through the sliding U-shaped frame 4. When it is necessary to adjust the length of the metal pins 9 passing through the sliding U-shaped frame 4, the first electric guide rail 25 is activated, so that the first electric guide rail 25 drives the sliding U-shaped frame 4 to slide a certain distance in the higher direction of the inclined guide platform 2.

[0032] A first bending plate 7 is provided on one side of the lower end of the inclined guide table 2. The first bending plate 7 is flush with the inclined surface of the inclined guide table 2. A second electric guide rail 16 is also fixedly connected to the lower end of the inclined guide table 2. A drive motor 24 is slidably mounted on the second electric guide rail 16. The main shaft end of the drive motor 24 is connected to one end of the first bending plate 7. An electric telescopic rod 6 is fixedly connected to the other end of the first bending plate 7. The telescopic end of the electric telescopic rod 6 passes through the first bending plate 7 and is connected to a second bending plate 10 that is parallel to the first bending plate 7. A pressure sensing switch 8 is installed on the upper end face of the first bending plate 7 and is electrically connected to the retraction control circuit of the electric telescopic rod 6. The pressure sensing switch 8 is also electrically connected to the stop control circuit of the second electric guide rail 16. A push-button switch 11 is installed on the lower end face of the second bending plate 10 and is electrically connected to the drive motor 24. Here, the push-button switch 11 is a type of switch that closes after being pressed and opens after being pressed again. Each press only needs to be pressed once and does not need to be pressed for a long time.

[0033] When it is necessary to bend the metal pin 9, the second electric guide rail 16 is first controlled to run, so that the drive motor 24 slides up. The drive motor 24 then drives the first bending plate 7 to slide up. When the first bending plate 7 is attached to the metal pin 9, the pressure sensing switch 8 contacts the metal pin 9 and generates a sense, so that the electric telescopic rod 6 retracts. The electric telescopic rod 6 then drives the second bending plate 10 to approach the first bending plate 7. Finally, the second bending plate 10 and the first bending plate 7 together clamp the part of the metal pin 9 that needs to be bent. At this time, the push-button switch 11 on the second bending plate 10 contacts the metal pin 9 and is squeezed. The switch closes, so that the drive motor 24 runs. The drive motor 24 then drives the first bending plate 7 to rotate counterclockwise. In this way, the second bending plate 10 and the first bending plate 7 rotate together, bending the clamped part of the metal pin 9.

[0034] The lower end of the inclined guide table 2 is provided with a linkage fixing assembly that cooperates with the second bending plate 10. The linkage fixing assembly includes a fixed U-shaped frame 5, which is located at the lower end of the inclined guide table 2. The lower end of the inclined guide table 2 has a pair of slots 23. The two ends of the fixed U-shaped frame 5 are respectively inserted into the corresponding slots 23. The fixed U-shaped frame 5 is parallel to the sliding U-shaped frame 4 and can be disassembled. The inner bottom of the fixed U-shaped frame 5 is provided with a first fixing clamp 27 that is flush with the first bending plate 7. The first fixing clamp 27 is fixedly connected to the housing of the drive motor 24 through a rod. A sliding top rod 15 is slidably inserted at the top of the fixed U-shaped frame 5. The bottom end of the sliding top rod 15 is connected to a second fixing clamp 22 that is aligned with the first fixing clamp 27. An iron block 13 is provided at the top of the sliding top rod 15. The iron block 13 and the sliding top rod 15 are connected to each other. 5. A sliding connection is provided, and a first spring 14 is connected between the iron block 13 and the sliding top rod 15. A magnet 12 that cooperates with the iron block 13 is connected to the second bending plate 10 through a rod. The magnet 12 and the iron block 13 are attracted together. A locking mechanism that cooperates with the sliding top rod 15 is provided on the fixed U-shaped frame 5. The locking mechanism includes a mounting groove 17. The mounting groove 17 is opened at the top of the fixed U-shaped frame 5. The sliding top rod 15 passes through the fixed U-shaped frame 5 and communicates with the mounting groove 17. An electromagnet 19 that is electrically connected to the push button switch 11 is slidably arranged in the mounting groove 17. A second spring 18 is connected between the electromagnet 19 and the mounting groove 17. The sliding top rod 15 is an iron rod. Multiple protrusions 20 are distributed on the side of the electromagnet 19 near the sliding top rod 15. Multiple fixing grooves 21 that cooperate with the protrusions 20 are opened on the sliding top rod 15.

[0035] When the second electric guide rail 16 drives the first bending plate 7 to rise, the first fixed clamping plate 27 rises synchronously. When the first bending plate 7 touches the bottom of the metal pin 9, the first fixed clamping plate 27 also touches the bottom of the metal pin 9. When the first bending plate 7 touches the metal pin 9, the second bending plate 10 descends under the action of the electric telescopic rod 6. Since the magnet 12 on the second bending plate 10 is attracted to the iron block 13, when the second bending plate 10 descends and approaches the metal pin 9, the attracted magnet 12 and iron block 13 drive the sliding top rod 15 to slide down. Thus, the sliding top rod 15 drives the second fixed clamping plate 22 to descend. When the second fixed clamping plate 22 touches the metal pin 9, but the second bending plate 10 has not yet made contact, the iron block 13 slides down along the sliding top rod 15, compressing the first spring 14. When the second bending plate 10 contacts the metal pin 9, the button is pressed. When the switch 11 is pressed, the drive motor 24 is activated, which also energizes the electromagnet 19 and generates magnetic force. The electromagnet 19 then exerts a magnetic attraction on the sliding top rod 15. Since the electromagnet 19 is slidably disposed in the mounting groove 17, it slides along the mounting groove 17 under the magnetic reaction force, approaching the sliding top rod 15. Finally, the protrusion 20 on the electromagnet 19 abuts against the fixing groove 21 on the sliding top rod 15, thus locking the sliding top rod 15 relative to the fixed U-shaped frame 5. At this time, when the drive motor 24 drives the first bending plate 7 and the second bending plate 10 to rotate and bend the metal pin 9, the remaining part of the metal pin 9 near the sensor resistor element 3 is firmly clamped by the first fixing plate 27 and the second fixing plate 22 to prevent it from lifting. This ensures that the metal pin 9 clamped by the first bending plate 7 and the second bending plate 10 is effectively bent.

[0036] The working principle of this invention is as follows: When it is necessary to bend the metal pins 9 of multiple sensor resistor elements 3, the metal pins 9 of the multiple sensor resistor elements 3 are directly directed toward the lower end of the inclined guide platform 2, and then the sensor resistor elements 3 slide down the inclined surface of the inclined guide platform 2. In this way, the sensor resistor elements 3 are finally blocked by the sliding U-shaped frame 4. At the same time, the metal pins 9 pass through the sliding U-shaped frame 4 and the fixed U-shaped frame 5, and are located between the first bending plate 7 and the second bending plate 10. When it is necessary to adjust the bending length of the metal pins 9, the first electric guide rail 25 is activated, so that the first electric guide rail 25 drives the sliding U-shaped frame 4 to slide a certain distance in the higher direction of the inclined guide platform 2, thereby adjusting the length of the usable metal pins 9 located between the first bending plate 7 and the second bending plate 10.

[0037] Then, the second electric guide rail 16 is controlled to run, so that the drive motor 24 slides up. The drive motor 24 then drives the first bending plate 7 to slide up. When the first bending plate 7 is attached to the metal pin 9, the pressure sensing switch 8 contacts the metal pin 9 and generates a sense, causing the electric telescopic rod 6 to retract. The electric telescopic rod 6 drives the second bending plate 10 to approach the first bending plate 7. Finally, the second bending plate 10 and the first bending plate 7 together clamp the part of the metal pin 9 that needs to be bent.

[0038] Simultaneously, as the first bending plate 7 rises, the first fixed clamping plate 27 rises synchronously. When the first bending plate 7 touches the bottom of the metal pin 9, the first fixed clamping plate 27 also touches the bottom of the metal pin 9. When the second bending plate 10 descends under the action of the electric telescopic rod 6, the magnet 12 on the second bending plate 10 is attracted to the iron block 13. Therefore, when the second bending plate 10 descends close to the metal pin 9, the attracted magnet 12 and iron block 13 drive the sliding top rod 15 down. Thus, the sliding top rod 15 drives the second fixed clamping plate 22 down. When the second fixed clamping plate 22 touches the metal pin 9, but the second bending plate 10 has not yet made contact, the iron block 13 slides down along the sliding top rod 15, compressing the first spring 14. When the second bending plate 10 contacts the metal pin 9, the push-button switch 11 is pressed, closing the switch and starting the drive motor 24. This also energizes the electromagnet 19, generating magnetic force. 9 then generates a magnetic attraction to the sliding top rod 15. Since the electromagnet 19 is slidably set in the mounting groove 17, the electromagnet 19 slides along the mounting groove 17 under the magnetic reaction and approaches the sliding top rod 15. Finally, the protrusion 20 on the electromagnet 19 abuts against the fixing groove 21 on the sliding top rod 15, so that the sliding top rod 15 can be locked relative to the fixed U-shaped frame 5. At the same time, the start of the drive motor 24 drives the first bending plate 7 to rotate counterclockwise. Thus, the second bending plate 10 and the first bending plate 7 rotate together, bending the clamped metal pin 9. During the rotation of the second bending plate 10, the magnet block 12 separates from the iron block body 13. The remaining part of the metal pin 9 near the sensor resistor element 3 is firmly clamped by the first fixing plate 27 and the second fixing plate 22, and remains fixed relative to the inclined guide platform 2 to prevent it from tilting. This ensures that the metal pin 9 clamped by the first bending plate 7 and the second bending plate 10 is effectively bent.

[0039] After bending is completed, the fixed U-shaped frame 5 can be removed from the slot 23, and the sliding U-shaped frame 4 can be removed from the docking cylinder 25 to facilitate the removal of the sensor resistor element 3 with the metal pin 9 bent.

[0040] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A pin bending device for temperature sensor resistance production, comprising a support base (1), characterized in that, Also includes: The inclined guide table (2) is connected on the support base (1), and the position adjusting assembly is arranged on the inclined guide table (2); The first bending plate (7) is arranged on one side of the inclined guide table (2), the second electric guide rail (16) is connected on the inclined guide table (2), the driving motor (24) is slidably arranged on the second electric guide rail (16), the main shaft end of the driving motor (24) is connected with one end of the first bending plate (7), the other end of the first bending plate (7) is connected with the electric telescopic rod (6), the telescopic end of the electric telescopic rod (6) is connected with the second bending plate (10), the pressure sensitive switch (8) is arranged on the first bending plate (7), and the key switch (11) is arranged on the second bending plate (10); The linkage fixing assembly is arranged on the inclined guide table (2) and matched with the second bending plate (10); The linkage fixing assembly includes a fixed U-shaped frame (5) arranged on the inclined guide table (2), a first fixed clamping plate (27) flush with the first bending plate (7) arranged on the inner bottom of the fixed U-shaped frame (5), the first fixed clamping plate (27) is connected with the shell of the driving motor (24), a sliding top rod (15) is slidably inserted into the top of the fixed U-shaped frame (5), the bottom end of the sliding top rod (15) is connected with a second fixed clamping plate (22) aligned with the first fixed clamping plate (27), an iron block (13) is arranged on the top of the sliding top rod (15), a magnet block (12) matched with the iron block (13) is connected on the second bending plate (10), and a locking mechanism matched with the sliding top rod (15) is arranged on the fixed U-shaped frame (5).

2. The pin bending device for temperature sensor resistance production according to claim 1, characterized in that, The position adjusting assembly includes a sliding U-shaped frame (4) arranged in parallel on one side of the fixed U-shaped frame (5), and a first electric guide rail (25) is connected in pairs on the two side edges of the inclined guide table (2), and the sliding U-shaped frame (4) is slidably connected with the first electric guide rail (25).

3. The pin bending device for temperature sensor resistance production according to claim 2, characterized in that, The first electric guide rail (25) is slidably provided with a butt joint cylinder (26), and the two ends of the sliding U-shaped frame (4) are respectively inserted into the corresponding butt joint cylinder (26).

4. The pin bending device for temperature sensor resistance production according to claim 1, characterized in that, A clamping groove (23) is formed in pairs on the inclined guide table (2), and the two ends of the fixed U-shaped frame (5) are respectively inserted into the corresponding clamping groove (23).

5. The pin bending device for temperature sensor resistance production according to claim 1, characterized in that, The iron block (13) is slidably connected with the sliding top rod (15), and a first spring (14) is connected between the iron block (13) and the sliding top rod (15).

6. The pin bending device for temperature sensor resistance production according to claim 1, characterized in that, The locking mechanism includes a mounting groove (17) formed in the top of the fixed U-shaped frame (5), an electromagnet (19) electrically connected with the key switch (11) is slidably arranged in the mounting groove (17), a second spring (18) is connected between the electromagnet (19) and the mounting groove (17), and the sliding top rod (15) is an iron rod.

7. The pin bending device for temperature sensor resistance production according to claim 6, characterized in that, The electromagnet (19) is distributed with multiple convex rods (20) near one side of the sliding ejector rod (15), and multiple fixed grooves (21) are arranged on the sliding ejector rod (15) and matched with the convex rods (20).

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