Thermistor pin bending tool

Abstract

The utility model relates to the technical field of thermistor pin machining, and discloses a thermistor pin bending tool which comprises a workbench, a mounting frame is fixed on the workbench, an electric telescopic rod is mounted on the mounting frame, the telescopic end of the electric telescopic rod extends into the mounting frame, and the telescopic rod is fixed on the workbench. An electric telescopic rod is arranged on the workbench, a movable plate is fixed to the telescopic end of the electric telescopic rod, two pressing blocks are fixed to the lower surface of the movable plate, two matching blocks are installed on the workbench and correspond to the two pressing blocks respectively, a positioning frame used for placing a resistor is installed on the workbench, two fixing blocks are further fixed to the workbench, and the two fixing blocks correspond to the two pressing blocks respectively. The two fixing blocks are both provided with fixing assemblies used for fixing resistor pins. When the thermistor pin bending tool provided by the utility model is applied, the pin part which does not need to be bent in the bending process can be fixed, the transverse pulling force at the joint of the thermistor can be reduced, and a larger acting force is only generated in a bending area, so that welding spots are prevented from loosening, and the stability and the reliability of connection are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of thermistor pin processing, in particular to a thermistor pin bending tool. Background Art

[0002] Thermistors are a special type of resistor whose resistance value changes with temperature. They are often used to measure and control temperature and are widely used in many electronic devices and systems. When processing thermistors, it is generally necessary to bend the thermistor pins to adapt to the circuit layout or component arrangement. Bending can ensure that the thermistor maintains an appropriate distance from other electronic components and meets the space and position requirements of the circuit board design.

[0003] When the thermistor pin bending device in the prior art is in operation, the staff first places the resistor body in the fixed assembly, starts the electric telescopic rod and drives the pressure block to move, and then squeezes and bends the resistor pins. During the bending, the pressure block will generate a lateral pulling force on the pins during the downward pressing process. Since the pins and the resistor body are generally fixed by welding, and the unbent parts of the pins are not fixed, when the lateral pulling force is too large, the solder joints may be subjected to unnecessary stress, which may reduce the mechanical stability and reliability of the solder joints, making the solder joints easy to loosen or break, thereby affecting the performance of the thermistor.

[0004] Therefore, it is necessary to design a thermistor pin bending tool to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a thermistor pin bending tool.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A thermistor pin bending tool comprises a workbench, a mounting frame is fixed on the workbench, an electric telescopic rod is installed on the mounting frame, and the telescopic end of the electric telescopic rod extends to the inside of the mounting frame, a movable plate is fixed to the telescopic end of the electric telescopic rod, two pressing blocks are fixed to the lower surface of the movable plate, two matching blocks are installed on the workbench, and the two matching blocks correspond to the two pressing blocks respectively, a positioning frame for placing resistors is installed on the workbench, and two fixed blocks are also fixed on the workbench, and both of the fixed blocks are provided with fixing components for fixing the resistor pins.

[0008] As a preferred technical solution of the utility model, the fixing component includes a slide groove arranged on the fixing block, the slide groove passes through the two opposite side walls of the fixing block, a plurality of card grooves are provided on the two opposite inner sides of the slide groove, and the card grooves on both sides are opposite to each other, an airbag is fixed inside the card groove, and the fixing component also includes a driving member, which is used to control the flow of air inside the airbag.

[0009] As a preferred technical solution of the utility model, the driving member includes a sleeve fixedly connected to the workbench, the internal sealing sliding connection of the sleeve is provided with a sliding plug, the upper surface of the sliding plug is fixed with a sliding rod, the top end of the sliding rod extends to the top of the sleeve, and the top end of the sliding rod is fixed to the lower surface of the movable plate, the bottom end of the side wall of the sleeve is connected with a connecting pipe, and the connecting pipe is connected to all the airbags.

[0010] As a preferred technical solution of the utility model, the longitudinal section of the airbag is a fan-shaped structure.

[0011] As a preferred technical solution of the utility model, the fixing block is provided with a slot, and the longitudinal section of the slot is a trapezoidal structure, and the slot is connected to the sliding slot.

[0012] As a preferred technical solution of the utility model, anti-slip grooves are provided on the side wall of the airbag facing the thermistor pins.

[0013] The utility model has the following beneficial effects:

[0014] 1. Pin positioning and fixation: Through the design of the positioning frame and the slide slot, the pins of the thermistor can be ensured to be in the appropriate position, and the airbag can firmly fix the pins after inflation, ensuring that the vibration of the machine during the bending process will not cause the position of the pins to deviate, thereby improving the position stability of the pins;

[0015] 2. Reduce lateral pulling force: fix the pin part that does not need to be bent during bending, reduce the lateral pulling force at the connection with the thermistor, and only generate a large force in the bending area, thereby preventing the solder joint from loosening and maintaining the stability and reliability of the connection;

[0016] 3. Applicability and flexibility: The card slot design in the slideway matches the common thermistor pin height on the market, making the equipment suitable for products of different specifications, with strong flexibility and reduced production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a thermistor pin bending tool proposed by the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the structure at A;

[0019] Figure 3 Schematic diagram of the structure inside the sleeve.

[0020] In the figure: 1 workbench, 2 mounting frame, 3 matching block, 4 electric telescopic rod, 5 moving plate, 6 pressing block, 7 positioning frame, 8 fixing block, 9 sliding groove, 10 card groove, 11 airbag, 12 sleeve, 13 sliding rod, 14 sliding plug, 15 connecting pipe, 16 slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3 A thermistor pin bending tool comprises a workbench 1, a mounting frame 2 is fixed on the workbench 1, an electric telescopic rod 4 is installed on the mounting frame 2, and the telescopic end of the electric telescopic rod 4 extends to the inside of the mounting frame 2, a movable plate 5 is fixed to the telescopic end of the electric telescopic rod 4, and two pressing blocks 6 are fixed to the lower surface of the movable plate 5, two matching blocks 3 are installed on the workbench 1, and the two matching blocks 3 correspond to the two pressing blocks 6 respectively, a positioning frame 7 for placing resistors is installed on the workbench 1, the positioning frame 7, the pressing block 6 and the matching block 3 are all fixed to the device by bolts, when the pins of thermistors of different sizes are bent, the staff can replace the positioning frame 7, the pressing block 6 and the matching block 3 that are compatible with them, the scheme is a prior art, and no further elaboration is made here, two fixing blocks 8 are also fixed on the workbench 1, and the two fixing blocks 8 are provided with fixing components for fixing the resistor pins.

[0023] Reference Figure 2 The fixing assembly includes a slide groove 9 arranged on the fixing block 8, the slide groove 9 passes through the two opposite side walls of the fixing block 8, a plurality of card grooves 10 are arranged on the two opposite inner sides of the slide groove 9, and the card grooves 10 on both sides are opposite to each other, and an air bag 11 is fixed inside the card groove 10, and the height of the card groove 10 is adapted to the model of the common thermistor pin. When the thermistor body is placed in the positioning frame 7, the pin of the resistor is just located between the two opposite air bags 11, which increases the applicability and flexibility of the device. The fixing assembly also includes a driving member, which is used to control the flow of air inside the air bag 11.

[0024] Reference Figure 1 and Figure 3The driving member includes a sleeve 12 fixedly connected to the workbench 1, and the internal sealing sliding connection of the sleeve 12 is connected with a sliding plug 14, and a sliding rod 13 is fixed to the upper surface of the sliding plug 14. The top of the sliding rod 13 extends to the top of the sleeve 12, and the top of the sliding rod 13 is fixed to the lower surface of the movable plate 5. The bottom end of the side wall of the sleeve 12 is connected with a connecting pipe 15, and the connecting pipe 15 is connected to all the airbags 11. By setting the driving member, the electric telescopic rod 4 will drive the air in the sleeve 12 into the airbag 11 during the bending operation, thereby fixing the thermistor pin. This design saves production costs and does not require manual driving by staff, thereby reducing labor.

[0025] Reference Figure 2 The longitudinal section of the airbag 11 is fan-shaped, and the cross-section of the pin of the thermistor is circular. The fan-shaped airbag 11 can increase the contact area between the airbag 11 and the pin, thereby improving the stability of the device in fixing the pin.

[0026] Reference Figure 2 A slot 16 is provided on the fixing block 8, and the longitudinal section of the slot 16 is a trapezoidal structure. The slot 16 is connected to the slide slot 9. The slot 16 increases the range of the pin entering the slide slot 9, so that the staff does not need to align the pin with the slide slot 9 when placing the resistor, which simplifies the operation steps and improves the bending efficiency of the thermistor pin.

[0027] Reference Figure 2 The side wall of the airbag 11 facing the thermistor pin is provided with anti-slip grooves, which increases the friction between the airbag 11 and the thermistor pin and ensures the stability and reliability of the device fixing the pin.

[0028] The specific working principle of the utility model is as follows:

[0029] When bending, the staff first places the thermistor body into the positioning frame 7, and at the same time makes the pins on both sides of the resistor be located in the slide groove 9 and move downward. After the resistor is placed, the pins are located between the two air bags 11, and then the electric telescopic rod 4 is started. The extension of the telescopic end of the electric telescopic rod 4 can drive the moving plate 5 to move downward, thereby making the pressing block 6 and the sliding rod 13 move downward together. The sliding rod 13 will squeeze the sliding plug 14 downward, so that the air at the bottom of the sliding plug 14 is squeezed into the connecting tube 15 and then enters the air bag 11. The inflation of the air bag 11 will squeeze the pins, thereby fixing the pins. Then the pressing block 6 moves downward and cooperates with the matching block 3 to squeeze and bend the thermistor pins. Conversely, after the bending is completed The electric telescopic rod 4 drives the sliding rod 13 and the sliding plug 14 to move upward, and then sucks the air in the airbag 11 back into the sleeve 12, thereby loosening the resistor pin. Since the part of the pin that does not need to be bent is fixed during the bending process, the lateral pulling force on the connection between the pin and the thermistor body will be reduced during the bending operation, and only a large force will be generated at the part where the pin is bent. This can prevent the solder joint at the connection between the pin and the thermistor from loosening, thereby ensuring the stability and reliability of the connection between the two. It is worth mentioning that a number of card slots 10 are arranged in the slide groove 9, and the height of these card slots 10 is adapted to the height of the common thermistor pins on the market, which increases the applicability and flexibility of the device and reduces the production cost.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thermistor pin bending tool, comprising a workbench (1), characterized in that: The workbench (1) is fixed with a mounting frame (2), an electric telescopic rod (4) is mounted on the mounting frame (2), and the telescopic end of the electric telescopic rod (4) extends into the interior of the mounting frame (2), a movable plate (5) is fixed to the telescopic end of the electric telescopic rod (4), two pressing blocks (6) are fixed to the lower surface of the movable plate (5), two matching blocks (3) are mounted on the workbench (1), and the two matching blocks (3) correspond to the two pressing blocks (6) respectively, a positioning frame (7) for placing resistors is mounted on the workbench (1), and two fixing blocks (8) are also fixed on the workbench (1), and both fixing blocks (8) are provided with fixing components for fixing resistor pins.

2. The thermistor pin bending tool according to claim 1, characterized in that: The fixing assembly comprises a slide groove (9) arranged on the fixing block (8), the slide groove (9) passes through two opposite side walls of the fixing block (8), a plurality of clamping grooves (10) are arranged on two opposite inner sides of the slide groove (9), and the clamping grooves (10) on both sides are opposite to each other, an air bag (11) is fixed inside the clamping groove (10), and the fixing assembly also comprises a driving member, and the driving member is used to control the flow of air inside the air bag (11).

3. The thermistor pin bending tool according to claim 2, characterized in that: The driving member comprises a sleeve (12) fixedly connected to the workbench (1), the sleeve (12) is sealed and slidably connected to a sliding plug (14) inside, a sliding rod (13) is fixed to the upper surface of the sliding plug (14), the top end of the sliding rod (13) extends above the sleeve (12), and the top end of the sliding rod (13) is fixed to the lower surface of the movable plate (5), and the bottom end of the side wall of the sleeve (12) is connected to a connecting pipe (15), and the connecting pipe (15) is connected to all the air bags (11).

4. The thermistor pin bending tool according to claim 3, characterized in that: The longitudinal section of the airbag (11) is a fan-shaped structure.

5. The thermistor pin bending tool according to claim 2, characterized in that: The fixing block (8) is provided with a slot (16), and the longitudinal section of the slot (16) is a trapezoidal structure, and the slot (16) is connected to the slide slot (9).

6. The thermistor pin bending tool according to claim 3, characterized in that: Anti-slip grooves are provided on the side wall of the air bag (11) facing the direction of the thermistor pins.

Images