CN112872572A - Welding head device capable of rotating spot welding - Google Patents
Welding head device capable of rotating spot welding Download PDFInfo
- Publication number
- CN112872572A CN112872572A CN202110285019.5A CN202110285019A CN112872572A CN 112872572 A CN112872572 A CN 112872572A CN 202110285019 A CN202110285019 A CN 202110285019A CN 112872572 A CN112872572 A CN 112872572A
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- rear end
- spot welding
- welding
- bearing
- rotary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/314—Spot welding guns, e.g. mounted on robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses a welding head device capable of rotating spot welding, which comprises a driving mechanism and a spot welding mechanism in sliding connection with the driving mechanism, wherein the spot welding mechanism comprises a machine base, a bearing connecting rod arranged in the machine base, a rotary driving assembly connected with the rear end of the bearing connecting rod and a rotary assembly; the rotating assembly comprises a guide rod part, a pressure sensing adjusting module and a welding head part; the front end of the welding head part is provided with a welding pin; the front end of the guide rod part is connected with the rear end of the welding head part, and the rear end of the guide rod part is connected with the front end of the bearing connecting rod; the front end of the pressure sensing adjusting module is connected with the rear end of the welding head part, and the rear end of the pressure sensing adjusting module is connected with the front end of the bearing connecting rod. The invention utilizes the pressure sensing adjusting module to detect spot welding pressure so as to realize real-time feedback of pressure data, and spot welding pressure adjustment is carried out according to the feedback pressure data, so that the whole mechanism can realize accurate positioning spot welding of different angles of the special-shaped battery pack.
Description
Technical Field
The invention relates to the technical field of resistance welding devices, in particular to a welding head device capable of rotating for spot welding.
Background
The welding head of the existing resistance welding generally cannot feed back pressure value data in real time, and the welding pressure value cannot ensure the consistency in the welding process. In the welding process of the special-shaped battery pack, the welding head cannot adapt to the welding pressure consistency requirements of different spot-welded articles for spot welding at various angles, and the conditions of over-welding, insufficient welding and infirm welding are easily caused.
Disclosure of Invention
The invention aims to provide a rotatable spot welding head device capable of feeding back pressure data in real time.
In order to solve the technical problems, the invention adopts the following technical scheme:
a welding head device capable of rotating spot welding comprises a driving mechanism and a spot welding mechanism connected with the driving mechanism in a sliding mode, wherein the spot welding mechanism comprises a base, a bearing connecting rod arranged in the base, a rotating driving assembly connected with the rear end of the bearing connecting rod and a rotating assembly; the rotating assembly comprises a guide rod part, a pressure sensing adjusting module and a welding head part; the front end of the welding head part is provided with a welding pin; the front end of the guide rod part is connected with the rear end of the welding head part, and the rear end of the guide rod part is connected with the front end of the bearing connecting rod; the front end of the pressure sensing adjusting module is connected with the rear end of the welding head part, and the rear end of the pressure sensing adjusting module is connected with the front end of the bearing connecting rod.
Preferably, the rotating assembly further comprises a rotating housing, a first rotating cover plate arranged at the front end of the rotating housing, and a second rotating cover plate arranged at the rear end of the rotating housing, the second rotating cover plate is respectively connected with the front end of the bearing connecting rod, the rear end of the guide rod part and the rear end of the pressure sensing adjusting module, and the front end of the guide rod part and the front end of the pressure sensing adjusting module penetrate through the first rotating cover plate to be connected with the rear end of the welding head part.
Preferably, the pressure sensing adjusting module comprises a connecting shaft, a pressure spring and a pressure sensor, the front end of the connecting shaft penetrates through the first rotary cover plate and is connected with the rear end of the welding head part, the rear end of the connecting shaft is connected with the front end of the pressure spring, the rear end of the pressure spring is connected with the front end of the pressure sensor, and the rear end of the pressure sensor is connected with the second rotary cover plate.
Preferably, the pressure sensing and adjusting module further comprises a first shaft sleeve and a second shaft sleeve, the rear end of the pressure spring is connected with the front end of the first shaft sleeve, the rear end of the first shaft sleeve is connected with the front end of the pressure sensor, the rear end of the pressure sensor is connected with the front end of the second shaft sleeve, and the rear end of the second shaft sleeve is connected with the second rotary cover plate.
Preferably, the pressure sensing adjustment module further comprises an adjustment nut, and the adjustment nut is arranged at the rear end of the connecting shaft and used for adjusting the pressure of the pressure spring.
Preferably, the guide rod part comprises a guide shaft, the guide shaft is slidably connected with a linear bearing arranged on the second rotary cover plate, and the front end of the guide shaft penetrates through the first rotary cover plate and is connected with the welding head part.
Preferably, the front end of the guide shaft is sleeved with a glass fiber shaft sleeve, and the rear end of the guide shaft is sleeved with a resin gasket.
Preferably, the rotary driving assembly comprises a motor and a coupling connected with the motor; the rear end of frame is equipped with and is used for placing the cavity of shaft coupling, the rear end of cavity is equipped with first through-hole, the transmission shaft of motor passes first through-hole with the shaft coupling transmission is connected, the shaft coupling with the rear end transmission of bearing connecting rod is connected.
Preferably, still be equipped with the bearing on the bearing connecting rod, the front end of frame corresponds to the position of bearing is equipped with and is used for placing the logical chamber of bearing, the front end of frame is connected with the bearing end cover, be equipped with the second through-hole on the bearing end cover, the front end of bearing connecting rod passes the second through-hole with rotating assembly connects.
Preferably, the bearing connecting rod is located the rear end of bearing still is equipped with lock nut and response piece, the response piece is located lock nut's rear end, still be equipped with in the frame with response piece matched with fibre inductor and be used for the installation the inductor base of fibre inductor, the inductor base with the frame is connected.
The invention has the beneficial technical effects that: according to the welding head device capable of rotating spot welding, the driving mechanism is used for driving the spot welding mechanism to move linearly, and the rotary driving assembly drives the rotary assembly to realize different-angle rotation of the spot welding head; meanwhile, the pressure sensing and adjusting module is used for carrying out spot welding pressure detection to realize real-time feedback of pressure data, and spot welding pressure adjustment is carried out according to the feedback pressure data, so that the whole mechanism can realize accurate positioning spot welding of the special-shaped battery pack at different angles. And the spot welding pressure is fed back in real time, so that an operator can accurately adjust the welding pressure, the consistency requirement of the welding pressure of different spot-welded objects and the spot welding requirements of various angles are met, the problem of needle sticking in the pure nickel sheet welding is solved, and the quality and the efficiency of spot welding are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of a rotary spot welding horn assembly of the present invention;
FIG. 2 is a schematic structural view of a spot welding mechanism;
FIG. 3 is a cross-sectional view of the spot welding mechanism;
FIG. 4 is an exploded view of the spot welding mechanism;
FIG. 5 is a schematic view of the driving mechanism;
fig. 6 is an exploded view of the drive mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
As shown in fig. 1 to 6, in an embodiment of the present invention, a welding head device for rotatable spot welding includes a driving mechanism 10 and a spot welding mechanism 20 slidably connected to the driving mechanism 10, wherein the spot welding mechanism 20 includes a base 21, a bearing connecting rod 22 disposed in the base 21, a rotary driving assembly 23 connected to a rear end of the bearing connecting rod 22, and a rotary assembly 24. The rotating assembly 24 comprises a guide rod part 244, a pressure sensing and adjusting module 243 and a welding head part 245; the front end of the welding head part 245 is provided with a welding pin 30; the front end of the guide rod part 244 is connected with the rear end of the welding head part 245, and the rear end is connected with the front end of the bearing connecting rod 22; the front end of the pressure sensing adjustment module 243 is connected with the rear end of the welding head portion 245, and the rear end is connected with the front end of the bearing connecting rod 22.
According to the welding head device capable of rotating spot welding, the driving mechanism 10 is used for driving the spot welding mechanism 20 to move linearly, and the rotating driving assembly 23 is used for driving the rotating assembly 24 to rotate at different angles; meanwhile, the pressure sensing and adjusting module 243 is used for spot welding pressure detection to realize real-time feedback of pressure data, and spot welding pressure adjustment is carried out according to the feedback pressure data, so that the whole mechanism can realize accurate positioning spot welding of the special-shaped battery pack at different angles. And the spot welding pressure is fed back in real time, so that an operator can accurately adjust the welding pressure, the consistency requirement of the welding pressure of different spot-welded objects and the spot welding requirements of various angles are met, the problem of needle sticking in the pure nickel sheet welding is solved, and the quality and the efficiency of spot welding are greatly improved.
As shown in fig. 4, in a preferred embodiment of the present invention, the rotating assembly 24 further includes a rotating housing 241, a first rotating cover 2421 disposed at the front end of the rotating housing 241, and a second rotating cover 2422 disposed at the rear end of the rotating housing 241, the second rotating cover 2422 is respectively connected to the front end of the bearing connecting rod 22, the rear end of the rod part 244, and the rear end of the pressure sensing and adjusting module 243, and the front end of the rod part 244 and the front end of the pressure sensing and adjusting module 243 pass through the first rotating cover 2421 and are connected to the rear end of the welding head part 245.
In the embodiment, the second rotating cover plate 2422 is connected with the bearing connecting rod 22 through a screw, so that the connection is firm and the assembly and disassembly are convenient; the first rotating cover plate 2421 and the second rotating cover plate 2422 are connected with the rotating shell 241 through screws, so that the connection is firm and the disassembly and assembly are convenient.
As shown in fig. 4, in a preferred embodiment of the present invention, the pressure sensing adjustment module 243 includes a connection shaft 2431, a pressure spring 2432 and a pressure sensor 2433, a front end of the connection shaft 2431 passes through the first rotating cover plate 2421 to be connected to a rear end of the welding head portion 245, a rear end of the connection shaft 2431 is connected to a front end of the pressure spring 2432, a rear end of the pressure spring 2432 is connected to a front end of the pressure sensor 2433, and a rear end of the pressure sensor 2433 is connected to the second rotating cover plate 2422.
The pressure sensing adjustment module 243 further includes a first shaft sleeve 2434 and a second shaft sleeve 2435, a rear end of the pressure spring 2432 is connected to a front end of the first shaft sleeve 2434, a rear end of the first shaft sleeve 2434 is connected to a front end of the pressure sensor 2433, a rear end of the pressure sensor 2433 is connected to a front end of the second shaft sleeve 2435, and a rear end of the second shaft sleeve 2435 is connected to the second rotating cover 2422.
In this embodiment, when the spot welding operation is started, the angle required for spot welding is adjusted, the whole welding head device descends vertically, then the welding needle 30 contacts the surfaces of the battery core and the nickel plate, the pressure spring 2432 is compressed, an elastic force is generated in the compression process, the elastic force is sequentially transmitted to the first shaft sleeve 2434, the pressure sensor 2433 and the second shaft sleeve 2435 through the pressure spring 2432, and when the first shaft sleeve 2434 and the second shaft sleeve 2435 are simultaneously stressed, the pressure sensor 2433 feeds the stressed value back to the control system through the signal amplifier. The control system can form data feedback with the pressure value and send the data feedback to the operation interface, and an operator can visually see whether the pressure value is in a unified set range value or not in the process of spot welding of the battery core through interface data so as to ensure the consistency of the spot welding process and avoid the occurrence of poor conditions such as over-welding, insufficient welding and the like and resource waste.
As shown in fig. 4, in a preferred embodiment of the present invention, the pressure sensing adjustment module 243 further includes an adjustment nut 2436, and the adjustment nut 2436 is disposed at the rear end of the connection shaft 2431 for adjusting the pressure of the pressure spring 2432.
As shown in fig. 4, in a preferred embodiment of the present invention, the guide rod 244 includes a guide shaft 2441, the guide shaft 2441 is connected to a linear bearing 2442 provided on the second rotating cover 2422, and a front end of the guide shaft 2441 passes through the first rotating cover 2421 and is connected to the welding head 245. The guide shaft 2441 is slidably connected to a linear bearing 2442, thereby guiding the welding head 245.
As shown in fig. 4, in a preferred embodiment of the present invention, a fiberglass sleeve 2443 is sleeved on the front end of the guide shaft 2441, so as to electrically insulate the guide rod part 244 from the welding head part 245; the rear end of the guide shaft 2441 is sleeved with a resin washer 2444, so that an anti-collision effect is achieved, and the welding head device is prevented from being damaged due to collision of the guide shaft 2441 and the machine base 21 in the spot welding process.
As shown in fig. 4, in a preferred embodiment of the present invention, the rotating assembly 24 includes 4 guide rods 244 and 2 pressure sensing and adjusting modules 243, so that the guiding is more stable, the pressure detection is more accurate, and thus, the precise spot welding of the profiled battery pack at different angles is better achieved.
As shown in fig. 4, in a preferred embodiment of the present invention, the rotary driving assembly 23 includes a motor 231 and a coupling 232 connected to the motor 231; the rear end of frame 21 is equipped with and is used for placing shaft coupling 232's cavity 211, the rear end of cavity 211 is equipped with first through-hole 212, the transmission shaft of motor 231 passes first through-hole 212 with shaft coupling 232 transmission is connected, shaft coupling 232 with bearing connecting rod 22's rear end transmission is connected, and the transmission is stable and high-efficient.
As shown in fig. 4, in a preferred embodiment of the present invention, a bearing 221 is further disposed on the bearing connecting rod 22, a through cavity 213 for placing the bearing 221 is disposed at a position corresponding to the bearing 221 at the front end of the housing 21, a bearing end cap 217 is connected to the front end of the housing 21, a second through hole 214 is disposed on the bearing end cap 217, and the front end of the bearing connecting rod 22 passes through the second through hole 214 to be connected to the rotating assembly 24, so that the structure is compact, the space is saved, and the transmission is stable.
As shown in fig. 4, in a preferred embodiment of the present invention, the bearing connecting rod 22 is further provided with a locking nut 222 and an induction plate 223 at the rear end of the bearing 221, the induction plate 223 is located at the rear end of the locking nut 222, the base 21 is further provided with a fiber inductor 215 matching with the induction plate 223 and an inductor base 216 for mounting the fiber inductor 215, and the inductor base 216 is fixedly connected to the base 21.
As shown in fig. 4, in a preferred embodiment of the present invention, the housing 21 is further provided with a cover 218, which enhances the sealing effect of the housing 21 and protects the components inside the housing 21.
As shown in fig. 4, in a preferred embodiment of the present invention, the welding head 245 includes a welding pin guide base plate 2451 connected to the guide rod 244 and a welding pin collet 2452 disposed at a front end of the welding pin guide base plate 2451; the needle collet 2452 is coupled to the welding needle 30.
As shown in fig. 5 and 6, in a preferred embodiment of the present invention, the driving mechanism 10 includes a bottom plate 11, a screw rod upper mounting block 12 connected to the bottom plate 11, a screw rod lower mounting block 13 connected to the bottom plate 11, a screw rod 14 disposed between the screw rod upper mounting block 12 and the screw rod lower mounting block 13, a servo motor assembly 15 disposed at an upper end of the screw rod 14, and a lifting movable sleeve 16 sleeved on the screw rod 14; side sealing plates 111 are arranged on two sides of the bottom plate 11, end sealing plates 112 are arranged on two ends of the bottom plate 11, and an upper sealing plate 113 is arranged on the top of the bottom plate 11, so that the sealing performance is strong; an opening 1131 is formed in the upper sealing plate 113, the top of the lifting movable sleeve 16 penetrates through the opening 1131 and is connected with a spot welding connecting plate 17, and the spot welding connecting plate 17 is connected with the machine base 21.
According to the welding head device capable of rotating spot welding, the servo motor assembly 15 drives the screw rod 14 to move, so that the lifting movable sleeve 16 is driven to move linearly, the spot welding connecting plate 17 is driven to move linearly, the spot welding mechanism 20 is driven to move linearly in a reciprocating mode, and the transmission effect is stable and reliable.
As shown in fig. 5 and 6, in a preferred embodiment of the present invention, the servo motor assembly 15 includes a servo motor 151 and a screw coupling 152; the servo motor 151 penetrates through the end sealing plate 112 to be connected with a screw rod coupler 152, and the screw rod coupler 152 is in transmission connection with the screw rod 14; go up still to be equipped with slide rail 1132 on the shrouding 113, spot welding connecting plate 17 corresponds slide rail 1132's position is equipped with spout 171, spout 171 and slide rail 1132 sliding connection for spot welding connecting plate 17 motion is more laborsaving, and more stable.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Various equivalent changes and modifications can be made by those skilled in the art based on the above embodiments, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a welding head device of rotatable spot welding, including actuating mechanism and with actuating mechanism sliding connection's spot welding mechanism, spot welding mechanism includes the frame, locates bearing connecting rod in the frame, with rotary driving subassembly and the rotating assembly that bearing connecting rod rear end is connected, its characterized in that, the rotating assembly including:
the front end of the welding head part is provided with a welding pin;
the front end of the guide rod part is connected with the rear end of the welding head part, and the rear end of the guide rod part is connected with the front end of the bearing connecting rod;
and the front end of the pressure sensing adjusting module is connected with the rear end of the welding head part, and the rear end of the pressure sensing adjusting module is connected with the front end of the bearing connecting rod.
2. A welding head assembly for rotary spot welding according to claim 1, wherein said rotary assembly further comprises a rotary housing, a first rotary cover plate disposed at a front end of said rotary housing, and a second rotary cover plate disposed at a rear end of said rotary housing, said second rotary cover plate being respectively connected to a front end of said bearing connecting rod, a rear end of said guide rod portion, and a rear end of said pressure sensing adjustment module, said front end of said guide rod portion and said front end of said pressure sensing adjustment module being connected to a rear end of said welding head portion through said first rotary cover plate.
3. A welding head assembly for rotary spot welding according to claim 2 wherein said pressure sensing adjustment module includes a connecting shaft, a compression spring and a pressure sensor, wherein a front end of said connecting shaft passes through said first rotary cover plate and is connected to a rear end of said welding head portion, a rear end of said connecting shaft is connected to a front end of said compression spring, a rear end of said compression spring is connected to a front end of said pressure sensor, and a rear end of said pressure sensor is connected to said second rotary cover plate.
4. A rotatable spot welding horn assembly of claim 3 wherein said pressure sensing adjustment module further comprises a first sleeve and a second sleeve, said pressure spring having a rear end connected to a front end of said first sleeve, said first sleeve having a rear end connected to a front end of said pressure sensor, said pressure sensor having a rear end connected to a front end of said second sleeve, said second sleeve having a rear end connected to said second rotatable cap.
5. A rotatable spot welding horn assembly of claim 3 wherein said pressure sensing adjustment module further includes an adjustment nut disposed at a rear end of said connecting shaft for adjusting the pressure of said pressure spring.
6. A rotary spot welding horn assembly of claim 2 wherein said pilot shaft includes a pilot shaft slidably connected to a linear bearing disposed on said second rotating cover plate, said pilot shaft having a forward end connected to said horn portion through said first rotating cover plate.
7. A rotary spot welding horn assembly of claim 6 wherein said pilot shaft has a fiberglass sleeve received at a forward end thereof and a resin washer received at a rearward end thereof.
8. The rotatable spot welding horn assembly of claim 1 wherein said rotary drive assembly comprises a motor and a coupling connected to said motor; the rear end of frame is equipped with and is used for placing the cavity of shaft coupling, the rear end of cavity is equipped with first through-hole, the transmission shaft of motor passes first through-hole with the shaft coupling transmission is connected, the shaft coupling with the rear end transmission of bearing connecting rod is connected.
9. The welding head device for the rotatable spot welding according to claim 8, wherein a bearing is further disposed on the bearing connecting rod, a through cavity for placing the bearing is disposed at a position, corresponding to the bearing, of the front end of the base, a bearing end cap is connected to the front end of the base, a second through hole is disposed on the bearing end cap, and the front end of the bearing connecting rod passes through the second through hole to be connected with the rotating assembly.
10. The welding head device of the rotatable spot welding according to claim 9, wherein the bearing connecting rod is further provided with a locking nut and an induction sheet at the rear end of the bearing, the induction sheet is located at the rear end of the locking nut, the base is further provided with a fiber inductor matched with the induction sheet and an inductor base used for mounting the fiber inductor, and the inductor base is connected with the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110285019.5A CN112872572A (en) | 2021-03-17 | 2021-03-17 | Welding head device capable of rotating spot welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110285019.5A CN112872572A (en) | 2021-03-17 | 2021-03-17 | Welding head device capable of rotating spot welding |
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| Publication Number | Publication Date |
|---|---|
| CN112872572A true CN112872572A (en) | 2021-06-01 |
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ID=76041109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110285019.5A Pending CN112872572A (en) | 2021-03-17 | 2021-03-17 | Welding head device capable of rotating spot welding |
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| CN (1) | CN112872572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944766A (en) * | 2023-09-19 | 2023-10-27 | 津上智造智能科技江苏有限公司 | High-precision welding pin mechanism |
-
2021
- 2021-03-17 CN CN202110285019.5A patent/CN112872572A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116944766A (en) * | 2023-09-19 | 2023-10-27 | 津上智造智能科技江苏有限公司 | High-precision welding pin mechanism |
| CN116944766B (en) * | 2023-09-19 | 2024-03-29 | 津上智造智能科技江苏有限公司 | High-precision welding pin mechanism |
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