NTC temperature sensor welding mechanism

Abstract

The NTC temperature sensor welding mechanism comprises a mechanism body, a first positioning seat, a welding seat, a second positioning seat and a center welding rod, the welding seat is fixed below the mechanism body, the center welding rod is installed at the top of the welding seat, welding grooves are formed in the positions, on the two sides of the center welding rod, of the top of the welding seat, and the second positioning seat is installed in the welding grooves. A first air cylinder is installed at the position, on one side of the welding groove, of the top of the welding base, a side welding rod is installed at the output end of the first air cylinder, a cross arm is arranged above the welding base, a first pressing plate is arranged on one side of the bottom end of the cross arm, pressing blocks are fixed to the bottom ends of the first pressing plate, and a second pressing plate is arranged on the other side of the bottom end of the cross arm. And upper welding rods are mounted at the bottom ends of the second pressing plates. According to the utility model, two cables and pins can be welded at one time, the welding efficiency is improved, the cables and the pins can be conveniently concentrated together and shaped, the cables and the pins are prevented from tilting, and the welding is tight and firm.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding mechanism technical field, concretely is NTC temperature sensor welding mechanism. BACKGROUND

[0002] ‌NTC temperature sensor is a kind of sensor using negative temperature coefficient thermistor (NTC) to perceive temperature change, its working principle is based on the resistance value of NTC thermistor changes with temperature, specifically shows that resistance value drops when temperature rises, resistance value rises when temperature drops, this characteristic makes NTC temperature sensor can indirectly obtain temperature information by measuring the change of resistance value.‌NTC temperature sensor needs to carry out square welding to resistor pin and wiring harness when producing, thus needs to use welding structure.

[0003] The Chinese patent with number CN 214641271 U discloses an NTC temperature sensor welding machine with a fixing device, relating to the field of welding equipment for temperature sensors, which comprises a rack, the rack is provided with a workbench, the upper surface of the workbench is provided with a lower electrode column; the rack is slidably provided with an upper electrode column along the up-down direction, which can abut against the upper end wall of the lower electrode column; the upper end wall of the lower electrode column is provided downward with an embedding groove for embedding the pins and cables simultaneously, the embedding groove is provided at both ends; the upper electrode column is provided with an abutting rod which can abut against the bottom wall of the embedding groove; the upper surface of the workbench at both ends of the embedding groove is provided with an elastic pressing sheet for pressing the cables or pins; one end of the elastic pressing sheet is fixedly connected with the workbench.

[0004] The above-mentioned NTC temperature sensor welding machine, although the embedding groove and the elastic pressing sheet cooperate to make the pins and cables fully contact each other, which is beneficial to improve the welding quality, but it is inconvenient to weld two cables and pins at one time during welding, and the welding efficiency is not high, and since there is still space in the embedding groove, the cables and pins cannot be concentrated together in the embedding groove, and the cables and pins are easy to be raised, which leads to loose and unfirm welding, therefore we propose the NTC temperature sensor welding mechanism. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing NTC temperature sensor welding mechanism to solve the problems proposed in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: NTC temperature sensor welding mechanism, including mechanism main part, first locating seat, welding seat, second locating seat and center electrode, welding seat is fixed below mechanism main part, center electrode is installed at the top of welding seat, and the top of welding seat on both sides of center electrode is provided with welding groove, the top of welding seat on one side of welding groove is installed with first air cylinder, and the output end of first air cylinder is installed with side electrode, the top of welding seat is provided with cross arm, one side of cross arm bottom is provided with first pressing plate, and the bottom of first pressing plate is fixed with pressing block, and pressing block corresponds to welding groove one by one, the other side of cross arm bottom is provided with second pressing plate, and the bottom of second pressing plate is installed with upper electrode, second locating seat is fixed on one side of welding seat, and the top of second locating seat is provided with second locating groove.

[0007] Preferably, the first locating seat is fixed on the other side of the welding seat, and the top of the first locating seat is provided with a first locating groove, which facilitates the limiting of the pin.

[0008] Preferably, the second locating groove is provided with a small motor inside the second locating seat below the second locating groove, and the output end of the small motor is provided with a bidirectional screw rod, and the outer wall on both sides of the bidirectional screw rod is sleeved with a sliding block, and the sliding block is in threaded engagement with the bidirectional screw rod.

[0009] Preferably, the second locating groove at the position of the sliding block is provided with a clamping plate inside the second locating groove, and the bottom end of the clamping plate is welded with the top end of the sliding block. The small motor drives the bidirectional screw rod to rotate, so that the sliding block drives the clamping plate to simultaneously translate towards the center and clamp and fix the wire harness, preventing it from deviating.

[0010] Preferably, the top end of the cross arm at the position of the first pressing plate is provided with a second air cylinder, and the output end of the second air cylinder is fixedly connected with the first pressing plate, facilitating the lifting of the first pressing plate.

[0011] Preferably, the top end of the cross arm at the position of the second pressing plate is provided with a third air cylinder, and the output end of the third air cylinder is fixedly connected with the second pressing plate, facilitating the lifting of the second pressing plate.

[0012] Preferably, one side of the top end of the mechanism main part is provided with a stepping motor, and the output end of the stepping motor is connected with the cross arm through a rotating shaft, facilitating the rotation of the cross arm.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The wire harness is placed in the second positioning groove at the top of the second positioning seat, and two cables of the wire harness are respectively extended into the welding grooves inside the welding seat, a small motor drives the bidirectional screw rod to rotate, so that the sliding block drives the clamping plate to simultaneously translate to the center and clamp and fix the wire harness to prevent it from deviating, two pins are respectively placed in the first positioning groove at the top of the first positioning seat, and the pins are respectively extended into the cables in the welding grooves, and the pins are in full contact with the cables, the welding mechanism is provided with two groups of welding grooves, so that two cables and pins can be welded at one time, and the welding efficiency is improved;

[0015] The first cylinder driving side electrode pushes the cable and the pin to one side inside the welding groove and tightly abuts against the center electrode, so that the cable and the pin are conveniently concentrated together, the second cylinder drives the first pressing plate to move downward, the first pressing plate drives the pressing block to press downward into the welding groove, the cable and the pin are pressed and shaped to prevent them from being warped, so that subsequent welding is close and firm, the second cylinder drives the first pressing plate and the pressing block to move upward, the stepping motor drives the cross arm to rotate one hundred and eighty degrees through the rotating shaft, so that the second pressing plate is rotated to above the welding seat, the third cylinder drives the second pressing plate to move downward, so that the upper electrode extends into the welding groove and presses downward the cable and the pin, at the same time, the upper electrode, the center electrode and the side electrode simultaneously heat the cable and the pin, so that the solid tin on the cable is melted and welded with the pin, the cable and the pin are heated from two sides and above, so that the welding is uniform and good in effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structure schematic view of the utility model;

[0017] Figure 2 It is a top view cross-sectional structure schematic view of the utility model;

[0018] Figure 3 It is a second positioning seat side view cross-sectional enlarged structure schematic view of the utility model;

[0019] Figure 4 It is a cross arm bottom view enlarged structure schematic view of the utility model;

[0020] Figure 5 It is a cross arm top view enlarged structure schematic view of the utility model.

[0021] In the drawing: 1, mechanism main body; 2, first positioning seat; 3, welding seat; 4, second positioning seat; 5, stepping motor; 6, rotating shaft; 7, cross arm; 8, first pressing plate; 9, pressing block; 10, welding groove; 11, center electrode; 12, second positioning groove; 13, clamping plate; 14, first cylinder; 15, side electrode; 16, first positioning groove; 17, small motor; 18, bidirectional screw rod; 19, sliding block; 20, second pressing plate; 21, upper electrode; 22, second cylinder; 23, third cylinder. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model protection.

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model protection.

[0024] Please refer to Figures 1-5 The utility model provides an embodiment: NTC temperature sensor welding mechanism, including mechanism main body 1, first locating seat 2, welding seat 3, second locating seat 4 and center electrode 11, welding seat 3 is fixed below mechanism main body 1, center electrode 11 is installed at the top of welding seat 3, and the top of welding seat 3 on both sides of center electrode 11 is provided with welding groove 10, the top of welding seat 3 on one side of welding groove 10 is installed with first cylinder 14, and the output end of first cylinder 14 is installed with side electrode 15;

[0025] Specifically, first cylinder 14 drives side electrode 15 to push cable and pin to one side inside welding groove 10, one side of cable and pin is in full contact with center electrode 11, and the other side is in full contact with side electrode 15, so as to facilitate the concentration of cable and pin, then control second cylinder 22 to drive first pressing plate 8 to move down, first pressing plate 8 drives pressing block 9 to press down into welding groove 10, and cable and pin are pressed and shaped, which prevents them from being raised, so that subsequent welding is tight and firm;

[0026] The top of welding seat 3 is provided with cross arm 7, one side of the bottom end of cross arm 7 is provided with first pressing plate 8, and the bottom end of first pressing plate 8 is fixed with pressing block 9, and pressing block 9 corresponds to welding groove 10 one by one, the other side of the bottom end of cross arm 7 is provided with second pressing plate 20, and the bottom end of second pressing plate 20 is installed with upper electrode 21, second locating seat 4 is fixed on one side of welding seat 3, and the top of second locating seat 4 is provided with second locating groove 12;

[0027] First locating seat 2 is fixed on the other side of welding seat 3, and the top of first locating seat 2 is provided with first locating groove 16;

[0028] Specifically, refer to the accompanying drawings Figure 2 The wire harness is placed in the second positioning groove 12 at the top end of the second positioning seat 4, and two cables of the wire harness are respectively inserted into the welding grooves 10 inside the welding seat 3, at this time, the small motor 17 is controlled to drive the bidirectional screw rod 18 to rotate, so that the sliding block 19 drives the clamping plate 13 to simultaneously translate to the center and clamp and fix the wire harness, preventing it from deviating, secondly, two pins are respectively placed in the first positioning groove 16 at the top end of the first positioning seat 2, and the pins are respectively inserted into the cables in the welding grooves 10, and the pins are in full contact with the cables;

[0029] The small motor 17 is installed inside the second positioning seat 4 below the second positioning groove 12, and the output end of the small motor 17 is installed with the bidirectional screw rod 18, and the outer walls on both sides of the bidirectional screw rod 18 are both sleeved with the sliding block 19, which is in threaded engagement with the bidirectional screw rod 18;

[0030] The clamping plate 13 is arranged inside the second positioning groove 12 at the position of the sliding block 19, and the bottom end of the clamping plate 13 is welded with the top end of the sliding block 19;

[0031] The second air cylinder 22 is installed at the top end of the cross arm 7 at the position of the first pressing plate 8, and the output end of the second air cylinder 22 is fixedly connected with the first pressing plate 8;

[0032] The third air cylinder 23 is installed at the top end of the cross arm 7 at the position of the second pressing plate 20, and the output end of the third air cylinder 23 is fixedly connected with the second pressing plate 20;

[0033] Specifically, the second air cylinder 22 drives the first pressing plate 8 and the pressing block 9 to move upwards, the step motor 5 drives the cross arm 7 to rotate one hundred and eighty degrees through the rotating shaft 6, so that the second pressing plate 20 is rotated to above the welding seat 3, the third air cylinder 23 drives the second pressing plate 20 to move downwards, so that the upper electrode 21 is inserted into the welding groove 10 and presses downwards on the cables and the pins, at the same time, the upper electrode 21, the center electrode 11 and the side electrode 15 simultaneously heat the cables and the pins, so that the solid tin on the cables is melted and welded with the pins, and through the simultaneous heating from both sides and above of the pins of the cables, the welding is uniform and good, the welding mechanism is provided with two groups of welding grooves 10, so that two cables and pins can be welded at one time, and the welding efficiency is improved;

[0034] The step motor 5 is installed at one side of the top end of the mechanism main body 1, and the output end of the step motor 5 is connected with the cross arm 7 through the rotating shaft 6.

[0035] In use, the embodiment of the application first refers to the accompanying drawings Figure 2The wire harness is placed in the second positioning groove 12 at the top end of the second positioning seat 4, and two cables of the wire harness are respectively inserted into the welding grooves 10 inside the welding seat 3, at this time, the small motor 17 is controlled to drive the bidirectional screw rod 18 to rotate, so that the sliding block 19 drives the clamping plate 13 to simultaneously translate to the center and clamp and fix the wire harness to prevent it from deviating, then, two pins are respectively placed in the first positioning groove 16 at the top end of the first positioning seat 2, and the pins are respectively inserted into the cables in the welding grooves 10, the pins are in full contact with the cables, then the first cylinder 14 drives the side electrode 15 to push the cables and the pins to one side inside the welding grooves 10, one side of the cables and the pins is in full contact with the center electrode 11, and the other side is in full contact with the side electrode 15, so as to facilitate the cables and the pins to be concentrated together, then the second cylinder 22 is controlled to drive the first pressing plate 8 to move downward, the first pressing plate 8 drives the pressing block 9 to press downward into the welding grooves 10, the cables and the pins are pressed and shaped to prevent them from being buckled, so that the subsequent welding is tight and firm, then the second cylinder 22 drives the first pressing plate 8 and the pressing block 9 to move upward, the stepping motor 5 drives the cross arm 7 to rotate one hundred and eighty degrees through the rotating shaft 6, so that the second pressing plate 20 is rotated to above the welding seat 3, the third cylinder 23 drives the second pressing plate 20 to move downward, so that the upper electrode 21 is inserted into the welding grooves 10 and presses the cables and the pins downward, at the same time, the upper electrode 21, the center electrode 11 and the side electrode 15 simultaneously heat the cables and the pins, so that the solid tin on the cables is melted and welded with the pins, through the simultaneous heating from both sides and above of the pins of the cables, the welding is uniform and good, the welding mechanism is provided with two groups of welding grooves 10, so that two cables and pins can be welded at one time, and the welding efficiency is improved.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

Claims

1. NTC temperature sensor welding mechanism, characterized by, Including mechanism body (1), first positioning seat (2), welding seat (3), second positioning seat (4) and center electrode (11), welding seat (3) is fixed below mechanism body (1), center electrode (11) is installed at the top of welding seat (3), and welding groove (10) is arranged at the top of welding seat (3) on both sides of center electrode (11), first cylinder (14) is installed at the top of welding seat (3) on one side of welding groove (10), and side electrode (15) is installed at the output end of first cylinder (14), horizontal arm (7) is arranged above welding seat (3), first pressing plate (8) is arranged at the bottom end of one side of horizontal arm (7), and pressing block (9) is fixed at the bottom end of first pressing plate (8), pressing block (9) corresponds to welding groove (10), second pressing plate (20) is arranged at the bottom end of the other side of horizontal arm (7), and upper electrode (21) is installed at the bottom end of second pressing plate (20), second positioning seat (4) is fixed on one side of welding seat (3), and second positioning groove (12) is arranged at the top end of second positioning seat (4).

2. The NTC temperature sensor welding mechanism of claim 1, wherein: The first positioning seat (2) is fixed on the other side of the welding seat (3), and the first positioning groove (16) is arranged at the top end of the first positioning seat (2).

3. The NTC temperature sensor welding mechanism of claim 1, wherein: The small motor (17) is installed in the second positioning seat (4) below the second positioning groove (12), the output end of the small motor (17) is provided with a bidirectional screw rod (18), and the outer wall on both sides of the bidirectional screw rod (18) is provided with a sliding block (19), and the sliding block (19) is in threaded engagement with the bidirectional screw rod (18).

4. The NTC temperature sensor welding mechanism of claim 3, wherein: The clamping plate (13) is arranged in the second positioning groove (12) at the position of the sliding block (19), and the bottom end of the clamping plate (13) is welded with the top end of the sliding block (19).

5. The NTC temperature sensor welding mechanism of claim 1, wherein: The second cylinder (22) is installed at the top end of the horizontal arm (7) at the position of the first pressing plate (8), and the output end of the second cylinder (22) is fixedly connected with the first pressing plate (8).

6. The NTC temperature sensor welding mechanism of claim 1, wherein: The third cylinder (23) is installed at the top end of the horizontal arm (7) at the position of the second pressing plate (20), and the output end of the third cylinder (23) is fixedly connected with the second pressing plate (20).

7. The NTC temperature sensor welding mechanism of claim 1, wherein: The stepper motor (5) is installed at one side of the top end of the mechanism body (1), and the output end of the stepper motor (5) is connected with the horizontal arm (7) through the rotating shaft (6).

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