Pressure sensor clamping and positioning mechanism for automatic welding machine

Abstract

The utility model discloses a pressure sensor clamping and positioning mechanism for an automatic welding machine, the clamping and positioning mechanism comprises a base and a socket arranged on the base, and a pressure sensor comprises an end button and a core body; the socket is provided with a slot, the slot is a semi-open slot body extending vertically, the core body is vertically placed in the slot in a vertical posture, and the bottom surface of the core body is exposed towards the open side of the slot; a bottom groove is formed in the base and located in the opening side of the inserting groove, the end button is horizontally placed in the bottom groove, and one side of the end button abuts against the bottom face of the core body. The base is further provided with a movable pressing plate, and the pressing plate can move to press the flat end button. The pressure sensor can be clamped and positioned, and welding of the pressure sensor is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of pressure sensor production and manufacturing, in particular to a pressure sensor clamping and positioning mechanism for an automatic welding machine. Background Art

[0002] Currently, in the pressure sensor industry, the soldering between flexible circuit boards and terminals as well as the pins of ceramic cores is mostly done by manual soldering with a soldering iron. The quality of manual soldering depends on the proficiency of the employees, so it is difficult to ensure product consistency and improve production efficiency. Therefore, automatic soldering machines are used to solder pressure sensors. For this purpose, a suitable clamping and positioning mechanism is required to fix the pressure sensor. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a pressure sensor clamping and positioning mechanism for an automatic welding machine, which clamps and positions the pressure sensor to facilitate welding of the pressure sensor.

[0004] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a clamping and positioning mechanism for a pressure sensor of an automatic welding machine, the clamping and positioning mechanism includes a base and a socket arranged on the base, and the pressure sensor includes a terminal button and a core body; a slot is provided on the socket, and the slot is a semi-open slot extending vertically, and the core body is placed upright in the slot in an upright posture, and the bottom surface of the core body is exposed toward the open side of the slot; a bottom slot is provided on the base, and the bottom slot is located on the open side of the slot, and the terminal button is placed flat in the bottom slot in a horizontal posture, and one side of the terminal button is against the bottom surface of the core body; a movable pressure plate is also provided on the base, and the pressure plate can be moved to press on the flat terminal button.

[0005] Furthermore, the terminal button has an inner cavity with an opening facing upward, and a first circuit board is located in the inner cavity of the terminal button; a second circuit board is located on the side of the core body facing the slot, and the second circuit board is connected to the first circuit board; the front end of the pressure plate has a downward-bent claw, which extends into the inner cavity of the terminal button and presses on the first circuit board.

[0006] Furthermore, the first circuit board is a flexible board, and an elastic pad is provided at the bottom end of the clamping claw, and the clamping claw is pressed onto the first circuit board through the elastic pad.

[0007] Furthermore, there is a solder point on the first circuit board, and the clamping claw is bifurcated into two sub-claw bodies, and the two sub-claw bodies are respectively connected to the two side walls of the terminal cavity.

[0008] Furthermore, the pressure plate is hingedly arranged on the base, and the pressure plate can be turned over to press on the flat end button.

[0009] Furthermore, the pressing plate is made of ferromagnetic material, and the base is an electromagnet; when the pressing plate is pressed on the end button, the base is energized to generate magnetic attraction, which sticks the pressing plate to the base.

[0010] Beneficial effects: The utility model is a pressure sensor clamping and positioning mechanism for an automatic welding machine, and the pressure sensor includes a terminal button and a core body. The core body is limitedly inserted into the slot in an upright posture, so that the bottom surface of the core body faces forward, which is convenient for welding the core body and the second circuit board; the terminal button is limitedly placed in the bottom groove in a flat posture, and the terminal button is pressed by a pressure plate, which is convenient for welding the terminal button and the first circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attachment Figure 1 It is a structural schematic diagram of the clamping and positioning mechanism of the present utility model. DETAILED DESCRIPTION

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] As attached Figure 1 The pressure sensor clamping and positioning mechanism for an automatic welding machine includes a clamping and positioning mechanism and a pressure sensor. The clamping and positioning mechanism includes a base 1, on which a socket 2 is provided. The pressure sensor includes a terminal 3 and a core 4. Specifically, the pressure sensor is a ceramic pressure sensor. A flexible first circuit board 9 is provided within the terminal 3. The core 4 is a ceramic core. A second circuit board 11 is connected to the bottom surface of the core 4. There is a solder joint between the first circuit board 9 and the terminal 3, and there is a solder joint between the second circuit board 11 and the core 4. Soldering is required, and the first circuit board 9 and the second circuit board 11 are connected by a flexible ribbon harness.

[0014] Socket 2 is provided with a slot 5, a vertically extending, semi-open slot. Core 4 is placed upright within slot 5, fitting snugly against socket 2. The bottom surface of core 4 is exposed toward the open side of slot 5, allowing an automatic soldering machine to solder the pins of first and second circuit boards 9, 11. The lower portion of slot 5 is curved to conform to the outer contour of core 4, while the upper portion is square, facilitating insertion of core 4.

[0015] A bottom groove 6 is provided on the base 1. The bottom groove 6 is adjacent to the slot 5 and is located on the open side of the slot 5. When the core 4 is inserted into the slot 5, the bottom surface of the core 4 faces the bottom groove 6. The terminal button 3 is placed horizontally in the bottom groove 6, and the bottom of the terminal button 3 is correspondingly sunken in the bottom groove 6. One side of the terminal button 3 is against the bottom surface of the core 4, thereby limiting the core 4 and preventing the core 4 from falling out of the slot 5. A second circuit board 11 is provided on the side of the core 4 facing the slot 5. The second circuit board 11 is connected to the first circuit board 9; a movable pressing plate 7 is also provided on the base 1. The pressing plate 7 can be moved to press on the flat terminal button 3, thereby fixing the terminal button 3.

[0016] The terminal button 3 has an upward-opening terminal button cavity 8, and a first circuit board 9 is located in the terminal button cavity 8. The front end of the pressure plate 7 has a downward-bent claw 10, which extends into the terminal button cavity 8 and presses on the first circuit board 9. A second circuit board 11 is provided on the side of the core body 4 facing the slot 5, and the second circuit board 11 is connected to the first circuit board 9. The first circuit board 9 is difficult to position before welding, so the clamping claw presses on the first circuit board 9 to fix the first circuit board 9 and ensure the stability of the first circuit board 9 during the welding process.

[0017] The first circuit board 9 is a flexible board, and an elastic pad is provided at the bottom end of the clamping claw 10. The clamping claw 10 is pressed against the first circuit board 9 via the elastic pad to prevent the clamping claw 10 from damaging the first circuit board 9. When the clamping claw 10 is pressed against the first circuit board 9, the elastic pad is elastically compressed.

[0018] As attached Figure 1 As shown in FIG, the socket 2 has multiple slots 5, and the bottom slot 6 is a groove-shaped slot. The width of the bottom slot 6 is adapted to the bottom shape of the terminal button 3, so that multiple pressure sensors can be placed simultaneously on the clamping and positioning mechanism. The claws 10 are connected to the two side walls of the terminal button cavity 8 to limit the position of the terminal button 3 within the bottom slot 6, that is, the claws 10 are used to assist in limiting the position of the terminal button 3. In another embodiment, a socket is provided in the bottom slot 6. The socket has the same shape as the bottom of the terminal button 3, and the terminal button 3 can also be limited by inserting the socket.

[0019] There are solder points on the first circuit board 9, and the clamping claw 10 is forked into two sub-claw bodies, which are respectively connected to the two side walls of the terminal cavity 8 to avoid the solder points on the first circuit board 9, making it convenient for the automatic welding machine to perform welding operations on the first circuit board 9.

[0020] The rear end of the pressing plate 7 is hingedly arranged on the base 1 so that the pressing plate 7 can be turned over on the base 1. After the terminal button 3 is placed flat in the base 1, the pressing plate 7 can be turned over to press on the flat terminal button 3 to limit the vertical displacement of the terminal button 3.

[0021] In one embodiment, the pressure plate 7 is made of ferromagnetic material, and the base 1 is an electromagnet. When the pressure plate 7 presses against the terminal button 3, the base 1 is energized to generate a magnetic attraction, which attracts the pressure plate 7 to the base 1, thereby stably pressing the terminal button 3. In another embodiment, a locking bolt can be provided between the base 1 and the pressure plate 7 to secure the pressure plate 7 to the base 1.

[0022] When the present invention is working: the core body 4 is placed upright in the slot 5 in an upright posture, and then the terminal button 3 is placed horizontally in the bottom slot 6. At this time, one side of the terminal button 3 will abut the lower part of the bottom surface of the core body 4, thereby restricting the core body 4 in the slot 5 to prevent the core body 4 from falling out of the slot 5; then the pressure plate 7 is turned over so that the pressure plate 7 is pressed on the terminal button 3. The lower plate surface of the pressure plate 7 is stepped. When one of the step surfaces is pressed on the terminal button 3, the other step surface will be attached to the base 1, and the base 1 is energized to generate a magnetic force to tightly absorb the pressure plate 7; in addition, the downward-bent claw 10 at the front end of the pressure plate 7 will extend into the terminal button cavity 8, press the first circuit board 9, and abut against the inner wall of the terminal button cavity 8 to limit the position of the terminal button 3 in the bottom slot 6.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A pressure sensor clamping and positioning mechanism for an automatic welding machine, characterized by: The clamping and positioning mechanism comprises a base (1) and a socket (2) arranged on the base (1); the pressure sensor comprises a terminal button (3) and a core body (4); a slot (5) is arranged on the socket (2), the slot (5) is a semi-open slot body extending vertically, the core body (4) is vertically placed in the slot (5) in an upright position, and the bottom surface of the core body (4) is exposed toward the open side of the slot (5); a bottom groove (6) is arranged on the base (1), the bottom groove (6) is located on the open side of the slot (5), the terminal button (3) is horizontally placed in the bottom groove (6), and one side of the terminal button (3) is against the bottom surface of the core body (4); a movable pressing plate (7) is also arranged on the base (1), and the pressing plate (7) can be moved to press on the flat terminal button (3).

2. The pressure sensor clamping and positioning mechanism for an automatic welding machine according to claim 1, characterized in that: The terminal button (3) has an upwardly opening terminal button cavity (8), and a first circuit board (9) is arranged in the terminal button cavity (8); a second circuit board (11) is arranged on the side of the core body (4) facing the slot (5), and the second circuit board (11) is connected to the first circuit board (9); the front end of the pressure plate (7) has a downwardly bent claw (10), and the claw (10) extends into the terminal button cavity (8) and presses on the first circuit board (9).

3. The pressure sensor clamping and positioning mechanism for an automatic welding machine according to claim 2, characterized in that: The first circuit board (9) is a flexible board, and an elastic pad is provided at the bottom end of the clamping claw (10), and the clamping claw (10) is pressed onto the first circuit board (9) through the elastic pad.

4. The pressure sensor clamping and positioning mechanism for an automatic welding machine according to claim 3, characterized in that: There is a soldering point on the first circuit board (9), and the clamping claw (10) is bifurcated into two sub-claw bodies, and the two sub-claw bodies are respectively connected to the two side walls of the terminal inner cavity (8).

5. The pressure sensor clamping and positioning mechanism for an automatic welding machine according to claim 1, characterized in that: The pressing plate (7) is hingedly arranged on the base (1), and the pressing plate (7) can be turned over to press on the flat end button (3).

6. The pressure sensor clamping and positioning mechanism for an automatic welding machine according to claim 5, characterized in that: The pressing plate (7) is made of ferromagnetic material, and the base (1) is an electromagnet; when the pressing plate (7) is pressed on the end button (3), the base (1) is energized to generate a magnetic attraction force, which sticks the pressing plate (7) to the base (1).

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