A head selection flip structure for PCB tool welding machine

Abstract

The utility model relates to the technical field of welding machines, and in particular to a head selection flipping structure for a PCB tool welding machine, comprising a mechanical arm, a mounting opening is provided on the surface of the mechanical arm, a rotating shaft is horizontally rotatably installed in the mounting opening, a rotating rod is horizontally rotatably installed in the mounting opening, sprockets are fixedly sleeved on the rotating rod and the rotating shaft, chains are meshed and wound on the two sprockets, a hollow rod is fixedly installed on the left and right walls of the mounting opening through a mounting assembly, a piston rod is inserted in a sliding seal in the hollow rod, a nozzle is fixedly installed on the bottom end of the hollow rod through a water outlet pipe, a water inlet pipe is fixedly installed on the surface of the hollow rod, a mounting plate is fixedly sleeved in the middle of the rotating rod, a plurality of hemispheres are fixedly installed on the left and right surfaces of the mounting plate in a circumferential shape, and a pressing block is fixedly installed on the top of the piston rod. The cooling of the welding cutter head can be achieved without an additional electric drive device, thereby reducing electricity costs.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a head selection flip structure for a PCB cutter welding machine. Background Art

[0002] Different welding tasks may require different types of welding heads, that is, welding heads of different shapes, sizes and materials may need to be selected according to the size, shape and material of the welding point, so that the welding machine can adapt to different welding requirements and improve welding quality and efficiency.

[0003] A Chinese patent with publication number CN220498200U discloses a head selection flip structure for a PCB tool welding machine. The water tank nozzle can be used to physically cool down the welding head with excessively high temperature after work, thereby avoiding damage to the internal structure of the equipment due to high temperature, thereby extending the life of the equipment and increasing the use time.

[0004] In the above patent document, the high temperature welding head is cooled by driving the water tank nozzle to spray water through an electric drive device, that is, the spraying of cooling water requires an additional electric drive device, which leads to higher electricity costs. Utility Model Content

[0005] The purpose of the utility model is to solve the following shortcomings in the prior art: for cooling the high-temperature welding head, an electric drive device is used to drive a water tank nozzle to spray water, that is, the spraying of cooling water requires an additional electric drive device, which leads to higher electricity costs, and a head selection flip structure for a PCB tool welding machine is proposed.

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

[0007] A head selection flipping structure for a PCB tool welding machine comprises a mechanical arm, a mounting opening is provided on the surface of the mechanical arm, a rotating shaft is horizontally mounted in the mounting opening, a round block is fixedly sleeved on the rotating shaft, a plurality of welding tool heads are fixedly mounted on the surface of the round block in a circular shape, and the rotating shaft is controlled to rotate by a driving component;

[0008] A rotating rod is installed in the installation mouth for horizontal rotation, and sprockets are fixedly sleeved on the rotating rod and the rotating shaft, and chains are meshed and wound on the two sprockets, and the left and right walls of the installation mouth are fixedly installed with a hollow rod with a closed bottom end through an installation component, a piston rod is inserted in the sliding seal in the hollow rod, a telescopic component is provided in the hollow rod, water tanks are fixedly installed on the left and right side walls of the mechanical arm, a spray head is fixedly installed on the bottom end of the hollow rod through a water outlet pipe, a water inlet pipe is fixedly installed on the surface of the hollow rod, and a one-way valve is provided in the water inlet pipe and the water outlet pipe, and the two water inlet pipes are respectively connected with the two water tanks, an installation disk is fixedly sleeved on the middle part of the rotating rod, and multiple hemispheres are fixedly installed on the left and right surfaces of the installation disk in a circular shape, and a pressure block is fixedly installed on the top of the piston rod, and the top of the pressure block is arc-shaped, and the two pressure blocks are respectively located on the rotation paths of the multiple hemispheres.

[0009] Preferably, the driving assembly includes a driving motor fixedly mounted on a side wall of the robotic arm, and an output shaft of the driving motor is fixedly connected to a rotating shaft.

[0010] Preferably, the mounting assembly comprises a support rod fixedly mounted on the wall of the mounting opening and a mounting ring fixedly mounted on one end of the support rod, and the hollow rod is fixedly mounted in the mounting ring.

[0011] Preferably, the telescopic component comprises a telescopic spring, and two ends of the telescopic spring are respectively fixedly connected to the inner bottom wall of the hollow rod and the top end of the piston rod.

[0012] Preferably, a plurality of hemispheres respectively located on the left and right surfaces of the mounting plate are arranged in a staggered manner.

[0013] Preferably, the conducting direction of the one-way valve in the water outlet pipe is from the inside of the hollow rod to the inside of the nozzle, and the conducting direction of the one-way valve in the water inlet pipe is from the inside of the water storage tank to the inside of the hollow rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the welding cutter head is replaced by rotating the round block, with the cooperation between the telescopic component, the hemisphere, the pressure block, the piston rod and the hollow rod, the cooling water in the two water tanks will be sprayed out from the nozzle in a mist form and act on the surface of multiple welding cutter heads, thereby achieving the effect of cooling the welding cutter heads, and the cooling is relatively timely. At the same time, it can be achieved without the need for an additional electric drive device, thereby reducing electricity costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front three-dimensional structural schematic diagram of a head selection flip structure for a PCB tool welding machine proposed by the utility model;

[0017] Figure 2This is a partial three-dimensional structural schematic diagram of a transfer rod and a hollow rod in a head selection flip structure for a PCB tool welding machine proposed by the utility model;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center;

[0019] Figure 4 for Figure 2 Enlarged view of the structure at point B in the middle.

[0020] In the figure: 1 mechanical arm, 2 round block, 3 welding cutter head, 4 rotating rod, 5 sprocket, 6 chain, 7 hollow rod, 8 piston rod, 9 water storage tank, 10 water outlet pipe, 11 nozzle, 12 water inlet pipe, 13 mounting plate, 14 hemisphere, 15 pressure block, 16 driving motor, 17 support rod, 18 mounting ring, 19 telescopic spring. 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] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0023] Reference Figure 1-Figure 4 A head selection flipping structure for a PCB tool welding machine includes a mechanical arm 1, a mounting opening is opened on the surface of the mechanical arm 1, a rotating shaft is horizontally rotatably installed in the mounting opening, a round block 2 is fixedly sleeved on the rotating shaft, and a plurality of welding tool heads 3 are fixedly installed on the surface of the round block 2 in a circular shape. The rotating shaft is controlled to rotate by a driving component, and the driving component includes a driving motor 16 fixedly installed on the side wall of the mechanical arm 1, and the output shaft of the driving motor 16 is fixedly connected to the rotating shaft;

[0024] A rotating rod 4 is installed in the installation mouth for horizontal rotation. A sprocket 5 is fixedly sleeved on the rotating rod 4 and the rotating shaft. A chain 6 is meshed and wound on the two sprockets 5. A hollow rod 7 with a closed bottom end is fixedly installed on the left and right walls of the installation mouth through a mounting assembly. The mounting assembly includes a support rod 17 fixedly installed on the wall of the installation mouth and a mounting ring 18 fixedly installed at one end of the support rod 17. The hollow rod 7 is fixedly installed in the mounting ring 18. A piston rod 8 is inserted in a sliding seal in the hollow rod 7. A telescopic component is provided in the hollow rod 7. The telescopic component includes a telescopic spring 19. The two ends of the telescopic spring 19 are fixedly connected to the bottom wall of the hollow rod 7 and the top of the piston rod 8 respectively. A water tank 9 is fixedly installed on the left and right side walls of the mechanical arm 1. A nozzle 11 is fixedly installed at the bottom end of the rod 7 through the water outlet pipe 10, and a water inlet pipe 12 is fixedly installed on the surface of the hollow rod 7. Both the water inlet pipe 12 and the water outlet pipe 10 are provided with a one-way valve. The conducting direction of the one-way valve in the water outlet pipe 10 is from the inside of the hollow rod 7 to the nozzle 11, and the conducting direction of the one-way valve in the water inlet pipe 12 is from the inside of the water storage tank 9 to the inside of the hollow rod 7. The two water inlet pipes 12 are respectively connected to the two water storage tanks 9. A mounting plate 13 is fixedly sleeved in the middle of the rotating rod 4. The left and right surfaces of the mounting plate 13 are both circumferentially fixedly installed with a plurality of hemispherical bodies 14. A pressing block 15 is fixedly installed at the top of the piston rod 8. The top of the pressing block 15 is arc-shaped, and the two pressing blocks 15 are respectively located on the rotation paths of the plurality of hemispherical bodies 14.

[0025] When the welding cutter head 3 needs to be replaced, the driving motor 16 needs to be started to control the rotating shaft to rotate the round block 2, so that the multiple welding cutter heads 3 fixedly mounted on the surface of the round block 2 will also rotate together until the required welding cutter head 3 is rotated to a suitable processing position;

[0026] When the rotating shaft is rotating, under the transmission action of the two sprocket wheels 5 and the chain 6, the rotating rod 4 will also rotate together, so that the mounting plate 13 fixedly sleeved on the rotating rod 4 will also rotate with the multiple hemispheres 14. When the multiple hemispheres 14 are rotating, they will intermittently abut against the two pressure blocks 15 respectively. When the hemispheres 14 abut against the pressure blocks 15, the pressure blocks 15 will move the piston rod 8 downward due to the pressure. At this time, the volume inside the hollow rod 7 becomes smaller and the pressure increases. The cooling water in the hollow rod 7 will enter the nozzle 11 from the water outlet pipe 10 and be sprayed out in the form of mist, and then act on the multiple welding cutter heads 3 below, so as to achieve the effect of cooling the welding cutter heads 3, and the cooling is more timely. At the same time, it can be achieved without an additional electric drive device, reducing the electricity cost.

[0027] When the hemispherical body 14 no longer abuts against the pressing block 15, the pressing force exerted by the hemispherical body 14 on the pressing block 15 disappears, and the pressing block 15 and the piston rod 8 will quickly move up and reset under the elastic potential energy of the telescopic spring 19. At this time, the volume inside the hollow rod 7 becomes larger and the pressure decreases. The cooling water in the water tank 9 will enter the hollow rod 7 from the water inlet pipe 12. When the pressing block 15 is pressed by the hemispherical body 14 next time, the cooling water in the hollow rod 7 will be sprayed out from the nozzle 11.

[0028] A plurality of hemispherical bodies 14 respectively located on the left and right surfaces of the mounting plate 13 are staggered, that is, among the plurality of hemispherical bodies 14, there are no hemispherical bodies 14 on the same horizontal line. The staggered hemispherical bodies 14 can make the two nozzles 11 work alternately, that is, when one of the pressing blocks 15 is pressed by the hemispherical body 14, the other pressing block 15 will not be pressed by the hemispherical body 14, which can ensure that when the welding cutter head 3 is replaced, the cooling work of the plurality of welding cutter heads 3 will not be interrupted.

[0029] In the utility model, when the rotating shaft is controlled to rotate and the welding cutter head 3 is replaced, the rotating rod 4 will also rotate together under the transmission action of the two sprocket wheels 5 and the chain 6, so that the mounting plate 13 fixedly sleeved on the rotating rod 4 will also rotate with the multiple hemispheres 14. When the multiple hemispheres 14 are rotating, they will intermittently abut against the two pressure blocks 15 respectively. When the hemispheres 14 abut against the pressure blocks 15, the pressure blocks 15 will move the piston rod 8 downward due to the pressure force. At this time, the volume inside the hollow rod 7 becomes smaller and the pressure increases. The cooling water inside the hollow rod 7 will enter the nozzle 11 from the water outlet pipe 10 and be sprayed out in the form of mist, and then act on the multiple welding cutter heads 3 below, so as to achieve the effect of cooling the welding cutter heads 3, and the cooling is relatively timely. At the same time, it can be achieved without an additional electric drive device, thereby reducing the electricity cost.

[0030] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0031] 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 head selection flipping structure for a PCB tool welding machine, comprising a mechanical arm (1), characterized in that: The surface of the mechanical arm (1) is provided with an installation opening, a rotating shaft is installed in the installation opening for horizontal rotation, a round block (2) is fixedly sleeved on the rotating shaft, a plurality of welding cutter heads (3) are fixedly installed on the surface of the round block (2) in a circular shape, and the rotating shaft is controlled to rotate by a driving component; A rotating rod (4) is installed in the installation opening for horizontal rotation. A sprocket (5) is fixedly sleeved on the rotating rod (4) and the rotating shaft. A chain (6) is meshed and wound on the two sprockets (5). A hollow rod (7) with a closed bottom is fixedly installed on the left and right walls of the installation opening through a mounting assembly. A piston rod (8) is inserted in a sliding seal in the hollow rod (7). A telescopic component is provided in the hollow rod (7). A water storage tank (9) is fixedly installed on the left and right side walls of the mechanical arm (1). A nozzle (11) is fixedly installed on the bottom of the hollow rod (7) through a water outlet pipe (10). A water inlet pipe (12) is fixedly mounted on the surface of the hollow rod (7), and one-way valves are arranged inside the water inlet pipe (12) and the water outlet pipe (10). The two water inlet pipes (12) are respectively connected to the two water storage tanks (9). A mounting plate (13) is fixedly sleeved on the middle of the rotating rod (4), and a plurality of hemispherical bodies (14) are fixedly mounted on the left and right surfaces of the mounting plate (13) in a circular shape. A pressing block (15) is fixedly mounted on the top end of the piston rod (8), and the top end of the pressing block (15) is in an arc shape. The two pressing blocks (15) are respectively located on the rotation paths of the plurality of hemispherical bodies (14).

2. The head selection flipping structure for a PCB tool welding machine according to claim 1 is characterized in that: The driving assembly comprises a driving motor (16) fixedly mounted on a side wall of the mechanical arm (1), and an output shaft of the driving motor (16) is fixedly connected to a rotating shaft.

3. The head selection flipping structure for a PCB tool welding machine according to claim 1 is characterized in that: The mounting assembly comprises a support rod (17) fixedly mounted on the wall of the mounting opening and a mounting ring (18) fixedly mounted on one end of the support rod (17); the hollow rod (7) is fixedly mounted in the mounting ring (18).

4. The head selection flipping structure for a PCB tool welding machine according to claim 1, characterized in that: The telescopic component comprises a telescopic spring (19), and two ends of the telescopic spring (19) are respectively fixedly connected to the inner bottom wall of the hollow rod (7) and the top end of the piston rod (8).

5. The head selection flipping structure for a PCB tool welding machine according to claim 1, characterized in that: A plurality of hemispherical bodies (14) respectively located on the left and right surfaces of the mounting plate (13) are arranged in a staggered manner.

6. The head selection flipping structure for a PCB tool welding machine according to claim 1, characterized in that: The conducting direction of the one-way valve in the water outlet pipe (10) is from the inside of the hollow rod (7) to the inside of the nozzle (11), and the conducting direction of the one-way valve in the water inlet pipe (12) is from the inside of the water storage tank (9) to the inside of the hollow rod (7).

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