Welding positioning device for processing NTC (Negative Temperature Coefficient) temperature sensor

Abstract

The utility model discloses a welding positioning device for NTC temperature sensor processing, which comprises a mounting frame, two groups of linear guide rail modules are mounted on the front side of the mounting frame, a mounting block is jointly mounted at the moving ends of the two groups of linear guide rail modules through supports, a first arc-shaped pressing block is mounted at the center of the bottom of the mounting block, and a second arc-shaped pressing block is mounted at the bottom of the mounting block. A first electric cylinder is mounted at one end of the top of the mounting block, and a fixing frame is mounted at the output end of the first electric cylinder. According to the utility model, the complementary arc-shaped pressing blocks are arranged, the grooves are formed in the arc-shaped pressing blocks, and the pressing plate is matched, so that the first arc-shaped pressing block moves and is attached to the second arc-shaped pressing block under the driving of the electric cylinder, the wire is clamped, and the pressing plate presses the rear end of the wire under the driving of the moving end of the second electric cylinder; therefore, the wire body and the non-welding end of the wire are fixed through the arc-shaped pressing block and the pressing plate, and positioning of the wire during welding is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sensor processing, in particular to a welding positioning device for processing an NTC temperature sensor. Background Art

[0002] NTC temperature sensors are thermistors and probes that can be as small as 0.010 inches or very small in diameter. Under a certain measurement power, the resistance value of NTC thermistors decreases rapidly as the temperature rises. Using this characteristic, the NTC thermistor can be used to determine the corresponding temperature by measuring its resistance value, thereby achieving the purpose of detecting and controlling temperature.

[0003] During the manufacturing process of the sensor, the thermistor and the wire need to be welded to ensure the normal use of the sensor. Therefore, in order to maintain a good weld between the thermistor and the wire, excessive solder is used during the welding operation, which not only causes waste, but also makes solder cleaning more troublesome if the welding position is misplaced, thereby increasing the scrap rate. Utility Model Content

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a welding positioning device for processing NTC temperature sensors, including a mounting frame, two groups of linear guide rail modules are installed on the front of the mounting frame, and the moving ends of the two groups of linear guide rail modules are jointly installed with a mounting block through a bracket, a first arc-shaped pressing block is installed at the bottom center of the mounting block, a first electric cylinder is installed at one end of the top of the mounting block, a fixing frame is installed at the output end of the first electric cylinder, the bottom end of the fixing frame extends to the bottom of the mounting block and is installed with a fixing plate, a placement groove is installed at the top of the fixing plate, a mounting box is installed at the bottom of the fixing plate, a third electric cylinder is installed at the bottom of the mounting box, the output end of the third electric cylinder extends to the inside of the mounting box and is installed with a top plate, an electric heating ring is installed on the top of the inner wall of the mounting box, a mounting groove is opened at one end of the top of the mounting block away from the first electric cylinder, a second electric cylinder is installed in the inside of the mounting groove, a pressing plate is installed at the output end of the second electric cylinder, and a second arc-shaped pressing block is installed at the bottom end of the front of the mounting frame through a bracket.

[0005] The utility model is further configured such that the shapes of the first arc-shaped pressing block and the second arc-shaped pressing block are complementary, and the contact surfaces of the first arc-shaped pressing block and the pressing plate are provided with grooves at the same position, and the provided grooves can effectively fix the wires welded to the components.

[0006] The utility model is further configured such that the placement slot is provided with interconnected and continuous trapezoidal through holes on the top of the fixing plate and the installation box, and a screen is provided in the trapezoidal through holes inside the placement slot, so that the melted solder can leak out through the screen and enter the interior of the placement slot.

[0007] The utility model is further configured that a through hole connected to the mounting groove is opened at one end of the top of the mounting block close to the mounting groove, and the non-welding end of the wire can pass through the provided through hole and be correctly pressed and fixed by the pressing plate.

[0008] The utility model is further configured such that two groups of sheet metal parts are symmetrically installed on the back side of the installation frame to facilitate installation of the installation frame on related equipment.

[0009] The utility model is further configured that a through hole with a cover plate is opened on the side of the installation box so that tin powder or tin block can be filled into the interior of the installation box.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model provides mutually complementary arc-shaped pressing blocks, and provides grooves on the arc-shaped pressing blocks, and cooperates with the pressing plate. Under the drive of the electric cylinder, the first arc-shaped pressing block moves and fits with the second arc-shaped pressing block, thereby clamping the wire. Under the drive of the moving end of the second electric cylinder, the pressing plate presses the rear end of the wire, thereby fixing the wire body and the non-welding end of the wire through the arc-shaped pressing block and the pressing plate, and realizing the positioning of the wire during welding;

[0012] 2. The utility model uses a component arranged on a fixed plate. When welding is performed, as the pressing plate is pushed, when the tin powder or tin block is heated and melted by the electric heating ring, the molten tin water leaks out through the opened through hole. When the welding requirements are met, the amount of solder can be controlled to achieve a saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0015] Figure 3 It is a structural side view of the utility model;

[0016] Figure 4 It is a cross-sectional view of the internal structure of the installation box of the utility model.

[0017] In the figure: 1. Installation frame; 2. Linear guide module; 3. Installation block; 4. First arc-shaped pressure block; 5. First electric cylinder; 6. Fixed frame; 7. Fixed plate; 8. Placement groove; 9. Installation box; 10. Third electric cylinder; 11. Top plate; 12. Installation groove; 13. Second electric cylinder; 14. Pressure plate; 15. Second arc-shaped pressure block; 16. Electric heating ring. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] See also Figures 1 to 4 A welding positioning device for processing an NTC temperature sensor comprises a mounting frame 1, two sets of linear guide rail modules 2 are mounted on the front of the mounting frame 1, the moving ends of the two sets of linear guide rail modules 2 are both mounted with a mounting block 3 through a bracket, a first arc-shaped pressing block 4 is mounted at the bottom center of the mounting block 3, a first electric cylinder 5 is mounted at one end of the top of the mounting block 3, a fixing frame 6 is mounted at the output end of the first electric cylinder 5, the bottom end of the fixing frame 6 extends to the bottom of the mounting block 3 and is mounted with a fixing plate 7, and a placing plate 7 is mounted on the top of the fixing plate 7 A mounting groove 8 is provided, and a mounting box 9 is installed at the bottom of the fixing plate 7. A third electric cylinder 10 is installed at the bottom of the mounting box 9. The output end of the third electric cylinder 10 extends to the inside of the mounting box 9 and is installed with a top plate 11. An electric heating ring 16 is installed on the top of the inner wall of the mounting box 9. A mounting groove 12 is provided at one end of the top of the mounting block 3 away from the first electric cylinder 5. A second electric cylinder 13 is installed inside the mounting groove 12. A pressure plate 14 is installed at the output end of the second electric cylinder 13. A second arc-shaped pressure block 15 is installed at the bottom end of the front side of the mounting frame 1 through a bracket.

[0020] like Figure 2 As shown, the shapes of the first arc-shaped pressing block 4 and the second arc-shaped pressing block 15 are complementary, and the contact surfaces of the first arc-shaped pressing block 4 and the pressure plate 14 are provided with grooves in the same position. Since the shapes of the two are complementary and combined with the grooves, when welding the sensor, the wires welded to the components can be effectively fixed.

[0021] like Figure 4 As shown, the placement slot 8 is provided with interconnected and continuous trapezoidal through holes at the top of the fixing plate 7 and the installation box 9, and a screen is provided in the trapezoidal through holes provided inside the placement slot 8. The setting of the trapezoidal through holes connects the placement slot 8 and the installation box 9, so that the melted solder can leak out through the screen and enter the interior of the placement slot 8.

[0022] like Figure 2 As shown, a through hole connected to the mounting groove 12 is provided at one end of the top of the mounting block 3 near the mounting groove 12. The setting of the through hole allows the non-welded end of the wire to pass through the set through hole when the wire is placed and be correctly pressed and fixed by the pressing plate 14.

[0023] like Figure 3 As shown, two groups of sheet metal parts are symmetrically installed on the back of the installation frame 1, and the installation frame 1 is conveniently installed on related equipment through the arranged sheet metal parts.

[0024] like Figure 1As shown, a through hole with a cover plate is opened on the side of the installation box 9, and soldering tin powder or tin block can be filled into the interior of the installation box 9 through the cover plate.

[0025] When the utility model is used, when welding, the thermistor is placed in the placement groove 8, and the wire is placed in the grooves opened on the two arc-shaped pressing blocks, and the first arc-shaped pressing block 4 is driven to move and fit with the second arc-shaped pressing block 15 by the moving ends of the two sets of linear guide rail modules 2, so as to clamp the wire, and at the same time, the pressing plate 14 is driven by the moving end of the second electric cylinder 13 to press the rear end of the wire and place the front end of the wire in the placement groove 8. When welding, the placement groove 8 is driven to rise by the output end of the first electric cylinder 5, and the placing groove 8 is driven to move. The slot 8 is close to the bottom of the mounting block 3. After the electric heating coil 16 is energized and heated to a sufficient temperature, the inside of the mounting box 9 is filled with tin blocks or tin powder. Driven by the output end of the third electric cylinder 10, the tin blocks or tin powder in the mounting box 9 are pushed toward the electric heating coil 16 through the top plate 11. After being heated by the electric heating coil 16, the molten tin water will be pushed to and leak out from the mesh of the set screen, thereby fusing with the thermistor and the wire. In addition, due to the shape of the through hole, the lower mouth is wide and the upper mouth is narrow, so that the amount of leaked tin water can meet the welding, thereby completing the welding.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A welding positioning device for processing an NTC temperature sensor, comprising a mounting frame (1), characterized in that: Two groups of linear guide rail modules (2) are installed on the front of the installation frame (1), and the movable ends of the two groups of linear guide rail modules (2) are both installed with a mounting block (3) through a bracket. A first arc-shaped pressure block (4) is installed at the bottom center of the mounting block (3), and a first electric cylinder (5) is installed at one end of the top of the mounting block (3). A fixing frame (6) is installed at the output end of the first electric cylinder (5). The bottom end of the fixing frame (6) extends to the bottom of the mounting block (3) and is installed with a fixing plate (7). The top of the fixing plate (7) is installed with a placement groove (8), and the bottom of the fixing plate (7) is installed with a A mounting box (9) is provided, wherein a third electric cylinder (10) is installed at the bottom of the mounting box (9), an output end of the third electric cylinder (10) extends into the interior of the mounting box (9) and is installed with a top plate (11), an electric heating coil (16) is installed at the top of the inner wall of the mounting box (9), a mounting groove (12) is provided at one end of the top of the mounting block (3) away from the first electric cylinder (5), a second electric cylinder (13) is installed inside the mounting groove (12), a pressure plate (14) is installed at the output end of the second electric cylinder (13), and a second arc-shaped pressure block (15) is installed at the bottom end of the front surface of the mounting frame (1) via a bracket.

2. The welding positioning device for NTC temperature sensor processing according to claim 1, characterized in that: The first arc-shaped pressing block (4) and the second arc-shaped pressing block (15) are complementary in shape, and the contact surfaces of the first arc-shaped pressing block (4) and the pressing plate (14) are provided with grooves at the same position.

3. The welding positioning device for NTC temperature sensor processing according to claim 1, characterized in that: The placement groove (8) is provided with interconnected and continuous trapezoidal through holes at the top of the fixing plate (7) and the installation box (9), and a screen is provided in the trapezoidal through hole provided inside the placement groove (8).

4. The welding positioning device for NTC temperature sensor processing according to claim 1, characterized in that: A through hole connected to the mounting groove (12) is provided at one end of the top of the mounting block (3) close to the mounting groove (12).

5. The welding positioning device for NTC temperature sensor processing according to claim 1, characterized in that: Two groups of sheet metal parts are symmetrically mounted on the back of the mounting frame (1).

6. The welding positioning device for NTC temperature sensor processing according to claim 1, characterized in that: A through hole with a cover plate is provided on the side of the installation box (9).

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