CN211331800U

CN211331800U - Observation device of laser spot welding machine

Info

Publication number: CN211331800U
Application number: CN201922499583.8U
Authority: CN
Inventors: 罗丹丹; 黄超年; 蒋英; 易智能; 林红
Original assignee: Shaoxing Elio Kitchenware Co ltd
Current assignee: Shaoxing Elio Kitchenware Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-25
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to an observation device of laser spot welder relates to laser spot welder's technical field, which comprises a frame, be provided with the laser instrument in the frame, install horizontal alignment jig in the frame, slide on the horizontal alignment jig and be provided with vertical alignment jig, slide on the vertical alignment jig and be provided with the workstation that is used for placing the weldment, the workstation is located the below of laser instrument, horizontal alignment jig is provided with the support that is L shape, is provided with the display screen on the support, the laser instrument is provided with and is used for taking a photograph to the welding department and the camera of being connected with the display screen electricity, and still is provided with the lamp of illumination to the welding department on the laser instrument. The utility model discloses a camera makes a video recording to laser instrument welded position, feeds back the image to the display screen on to make the staff can see welded position, can in time adjust when the skew appears, thereby can reduce the defective percentage, improve welded efficiency.

Description

Observation device of laser spot welding machine

Technical Field

The utility model belongs to the technical field of the technique of laser spot welder and specifically relates to an observation device of laser spot welder is related to.

Background

Laser spot welding is the localized heating of materials in small areas by high energy laser pulses, the energy of the laser radiation diffusing through heat transfer into the material to melt the material and form a specific melt pool, thereby welding the same or different materials together.

As shown in fig. 1, the conventional laser spot welding machine includes a frame 1, wherein a transverse adjusting frame 41 is arranged on the frame 1, a longitudinal adjusting frame 42 is slidably arranged on the transverse adjusting frame 41, and a workbench 3 is slidably arranged on the longitudinal adjusting frame 42; a screw motor is arranged in the transverse adjusting frame 41, and a connecting block connected with a screw of the screw motor is arranged at the bottom of the longitudinal adjusting frame 42, so that the screw motor drives the connecting block to move, the process that the longitudinal adjusting frame 42 slides on the transverse adjusting frame 41 is realized, and the workbench 3 slides on the longitudinal adjusting frame 42 in the same structure; the upper surface of the workbench 3 is provided with a square limiting frame 36, and the rack 1 above the limiting frame 36 is provided with a laser 2. In the actual use process, the metal frame and the metal plate are attached to one side of the limiting frame 36, and then the metal frame and the metal plate are attached to one side of the limiting frame 36 by other objects, so that simple fixation is realized, and the attachment part of the metal frame and the limiting frame is welded by the laser 2.

The technical scheme has the following defects: in the welding process, the observation of the welding line can be carried out only after the laser is welded, and the corresponding position adjustment cannot be timely carried out when the deviation of the welding line position occurs in the laser welding process, so that the welding defective rate is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a laser spot welder's viewing device, make the staff can see welded position, in time adjust when the skew appears to can reduce the defective percentage, improve welded efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an observation device of laser spot welder, includes the frame, be provided with the laser instrument in the frame, install the horizontal alignment jig in the frame, it is provided with vertical alignment jig to slide on the horizontal alignment jig, it is provided with the workstation that is used for placing the weldment to slide on the vertical alignment jig, the workstation is located the below of laser instrument, the horizontal alignment jig is provided with the support that is L shape, be provided with the display screen on the support, the laser instrument be provided with be used for taking a photograph to the welding spot and with the camera that the display screen electricity is connected, just still be provided with the lamp of illumination to the welding spot on the laser instrument.

Through adopting above-mentioned technical scheme, the lamp shines at the welded position, and the camera makes a video recording to laser instrument welded position, feeds back the image to the display screen on to make the staff can see welded position, can in time adjust when the skew appears, thereby can reduce the defective percentage, improve welded efficiency.

The utility model discloses can further configure to in a preferred example, the laser instrument outer wall still is provided with the fan, the fan blows to the welding department.

Through adopting above-mentioned technical scheme, the fan can be with the dust clearance of welding, improves the quality of welding, can play radiating effect simultaneously.

The present invention may be further configured in a preferred example such that the lamp is located on a path of the blower to the welding location.

Through adopting above-mentioned technical scheme, the fan can blow the cooling to the lamp, reduces because of the long-time use of lamp is sent out the probability that scalds and life-span reduces, increase of service life.

The utility model discloses can further configure to in a preferred example, still be provided with the water tank on the laser instrument, fill water in the water tank, water is not full of the water tank, the roof of water tank with the air intake connection of fan has the air feed pipe, the roof of water tank still is provided with the intake pipe, the intake pipe extends below the surface of water just.

Through adopting above-mentioned technical scheme, because there is the dust in the air, if the fan will take the wind of dust to directly blow to the welding department, probably can make the welding department contain impurity to reduce the quality of welding. Through the setting of water tank for the air of the air inlet of fan can be through the filtration of water, thereby reduces the probability that the department of welding receives the dust influence, improves welding quality.

The utility model discloses can further configure to in a preferred example, the water tank includes that one sets up on the laser instrument and opening under casing, screw thread seal up install top cap on the under casing, the air supply pipe with the intake pipe all sets up on the top cap.

Through adopting above-mentioned technical scheme, after using a period, there are more impurity in the aquatic, need clear up. Through the screw-thread fit of under casing and top cap, open the top cap when needs clearance, with the water in the under casing pour the change can, realize the change to water.

The utility model discloses can further configure to in a preferred example, vertical alignment jig rotates along its length direction and is provided with the second threaded rod, the workstation be provided with second threaded rod screw-thread fit's second installation piece, the second threaded rod is worn out vertical alignment jig one end is provided with the second worm wheel, the support rotates install length direction be on a parallel with vertical alignment jig sliding direction's bull stick, sliding sleeve on the bull stick be equipped with second worm wheel meshed's second worm cover, the second worm cover with bull stick circumference is fixed.

Through adopting above-mentioned technical scheme, because the skew through lead screw motor regulation workstation is comparatively troublesome, after the staff sees the welding department skew from the display screen, control lead screw motor and drive the workstation and slide, the distance and the dead time of sliding are difficult to master, lead to adjusting the effect relatively poor. Through the setting of second threaded rod, second installation piece, second worm wheel, second worm cover, bull stick, when needs adjust, the staff rotates the bull stick, and the bull stick drives second worm cover and rotates, and second worm cover drives the second worm wheel and rotates, and second threaded rod and the synchronous rotation of second worm wheel, second threaded rod drive the motion of second installation piece, realize sliding of workstation. And because the staff can rotate the bull stick according to the image that sees from the display screen, and rotate the number of turns and can accurate control, stop also can be comparatively accurate to precision when can improving the welding greatly improves welding quality.

The utility model discloses can further configure to in a preferred example, the transverse adjustment frame is provided with the stop collar, the bull stick is followed the stop collar rotates.

By adopting the technical scheme, because the length of the rotating rod is longer than the sliding length of the longitudinal adjusting bracket, the second worm sleeve and the second worm wheel can be separated due to relative acting force when being matched, so that the second worm sleeve and the second worm wheel can slip. Through the setting of stop collar, can inject the position of bull stick in second worm wheel both sides to improve second worm cover and second worm wheel complex stability, reduce the probability that relative skidding appears in both.

The utility model discloses can further configure to in a preferred example, still be provided with on the support with the parallel action bars of bull stick, action bars one end is rotated and is connected on the support, just the action bars with the bull stick passes through gear drive and connects, the action bars other end is located one side of display screen is provided with the commentaries on classics piece.

Through adopting above-mentioned technical scheme, rotate the commentaries on classics piece and drive the action bars and rotate, the action bars rotates and drives the commentaries on classics pole and rotate, can make the staff see the display screen while the hand can be put on the commentaries on classics piece, in time rotate the adjustment, and need not to go to rotate the position at the both ends of commentaries on classics pole, and is comparatively convenient.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the welding position of the laser is shot by the camera, and an image is fed back to the display screen, so that a worker can see the welding position and can adjust the welding position in time when deviation occurs, the defective rate can be reduced, and the welding efficiency is improved;

2. through the arrangement of the fan, dust at the welding position can be cleaned, the quality of the welding position is improved, and meanwhile, a heat dissipation effect can be achieved;

3. through the setting of second threaded rod, second installation piece, second worm wheel, second worm cover, bull stick, when needs adjust, the staff rotates the bull stick, and the bull stick drives second worm cover and rotates, and second worm cover drives the second worm wheel and rotates, and second threaded rod and the synchronous rotation of second worm wheel, second threaded rod drive the motion of second installation piece, realize sliding of workstation. And because the staff can rotate the bull stick according to the image that sees from the display screen, and rotate the number of turns and can accurate control, stop also can be comparatively accurate to precision when can improving the welding greatly improves welding quality.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a conventional laser spot welder;

fig. 2 is a schematic view of the three-dimensional structure of the present invention;

fig. 3 is a schematic view of a partial three-dimensional structure of the moving mechanism of the present invention;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is an enlarged schematic view of section B of FIG. 2;

fig. 6 is a schematic view of a partial three-dimensional structure of the observation mechanism of the present invention;

FIG. 7 is an enlarged schematic view of section C of FIG. 2;

fig. 8 is an enlarged schematic view of a portion D in fig. 2.

Reference numerals: 1. a frame; 2. a laser; 21. a fan; 22. a water tank; 221. a bottom box; 222. a top cover; 223. an air supply pipe; 224. an air inlet pipe; 3. a work table; 31. a fixing frame; 311. a movable seat; 312. moving the column; 313. a first linkage rod; 314. a first bevel gear; 315. a second bevel gear; 317. a second cylinder; 322. a second motor; 323. a second gear; 33. a lifting block; 331. a first clamping block; 332. a second clamping block; 333. a rubber cushion layer; 34. a third drive assembly; 341. a third screw; 342. a first worm housing; 343. a first worm gear; 344. a second linkage rod; 345. a first gear; 35. a first drive assembly; 351. a first cylinder; 352. connecting blocks; 36. a limiting frame; 41. a transverse adjusting bracket; 411. a first sink tank; 412. a first kidney channel; 42. a longitudinal adjusting bracket; 421. a second sink tank; 422. a second kidney channel; 432. a first mounting block; 433. a first rotating shaft; 434. a first fixing frame; 435. a first support wheel; 436. a first drive motor; 441. a second threaded rod; 442. a second mounting block; 443. a second rotating shaft; 444. a second fixing frame; 445. a second support wheel; 451. a ring gear; 452. a rack; 453. an annular groove; 454. a limiting band; 46. a dust collection pipe; 471. an extension rod; 473. a sponge wheel; 474. a drive member; 475. an oil storage tank; 48. a limiting sleeve; 5. a support; 51. a display screen; 53. a lamp; 541. a second worm gear; 542. a second worm housing; 55. a rotating rod; 56. an operating lever; 57. and (6) turning the block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, an observation device of laser spot welder, including frame 1, be provided with laser instrument 2, observation mechanism, moving mechanism on the frame 1, the last workstation 3 that is provided with of moving mechanism, laser instrument 2 are used for welding the weldment, and observation mechanism supplies the staff to look over the condition of welding position, and moving mechanism drives the 3 removal of workstation and realizes the welding of laser instrument 2 butt welding, is provided with the fixture who is used for centre gripping weldment on the workstation 3.

Referring to fig. 2 and 3, the moving mechanism includes a transverse adjusting frame 41 and a longitudinal adjusting frame 42, the transverse adjusting frame 41 is fixedly disposed on the frame 1, the longitudinal adjusting frame 42 is slidably disposed on the transverse adjusting frame 41, a fourth driving assembly connected to the longitudinal adjusting frame 42 is disposed on the transverse adjusting frame 41, the workbench 3 is disposed on the longitudinal adjusting frame 42, and a fifth driving assembly connected to the workbench 3 is disposed on the longitudinal adjusting frame 42.

The transverse adjusting frame 41 is concavely provided with first sinking grooves 411 along two sides of the length direction, a first waist-shaped channel 412 is formed in the bottom of each first sinking groove 411, the length direction of each first waist-shaped channel 412 is parallel to the length direction of each first sinking groove 411, each fourth driving component comprises a first threaded rod (not shown in the figure), a first mounting block 432, a first rotating shaft 433, a first fixing frame 434, a first supporting wheel 435 and a first driving motor 436, the first threaded rods are rotatably mounted at two ends of the length direction of the transverse adjusting frame 41, and the axis direction of the first threaded rods is parallel to the length direction of the transverse adjusting frame 41; two first mounting blocks 432 are arranged, and spaced threads are arranged on the first threaded rod; the first rotating shaft 433 is rotatably installed on the first installation block 432, two ends of the first rotating shaft extend out of the first kidney-shaped channel 412, and the axial direction of the first rotating shaft 433 is perpendicular to the axial direction of the first threaded rod.

Two first fixing frames 434 are arranged and correspond to the two first mounting blocks 432 in a one-to-one manner, the first fixing frames 434 are fixedly mounted on the lower surface of the longitudinal adjusting frame 42 and are rotatably connected with the first rotating shafts 433 on the corresponding first mounting blocks 432, and the lower surface of the longitudinal adjusting frame 42 is not in contact with the upper surface of the transverse adjusting frame 41, so that a gap is formed between the lower surface of the longitudinal adjusting frame 42 and the upper surface of the transverse adjusting frame 41, and friction force and abrasion are reduced; four first supporting wheels 435 are provided, one first rotating shaft 433 corresponds to two first supporting wheels 435, the two corresponding first supporting wheels 435 are respectively installed at two ends of the first rotating shaft 433 extending out of the first kidney-shaped channel 412, and the first supporting wheels 435 roll on the side wall of the first sinking groove 411; the first driving motor 436 is fixedly installed on an outer wall of one end of the transverse adjusting frame 41 in the length direction, one end of the first threaded rod extends out of the transverse adjusting frame 41, and the first driving motor 436 is connected with the extended end of the first threaded rod.

The first driving motor 436 drives the first threaded rod to rotate, the first threaded rod drives the first mounting block 432 to move, the first rotating shaft 433, the first fixing frame 434, the longitudinal adjusting frame 42 and the first mounting block 432 synchronously move, and the first supporting wheel 435 rolls when the first rotating shaft 433 moves, so that the sliding adjustment of the longitudinal adjusting frame 42 is realized.

The length direction of the longitudinal adjusting frame 42 is perpendicular to the length direction of the transverse adjusting frame 41, second sinking grooves 421 are concavely arranged on two sides of the longitudinal adjusting frame 42 along the length direction, and second waist-shaped channels 422 are formed at the bottoms of the second sinking grooves 421. The fifth driving assembly comprises a second threaded rod 441, a second mounting block 442, a second rotating shaft 443, a second fixing frame 444 and a second supporting wheel 445, the second threaded rod 441 is rotatably mounted at two ends of the longitudinal adjusting frame 42 in the length direction, the axial direction of the second threaded rod 441 is parallel to the length direction of the longitudinal adjusting frame 42, and one end of the second threaded rod 441 penetrates out of the longitudinal adjusting frame 42; two second mounting blocks 442 are provided, and are mounted on the second threaded rod 441 at intervals; the second rotating shaft 443 is rotatably installed on the second installation block 442 and has both ends extending out of the second kidney passage 422, and the axial direction of the second rotating shaft 443 is perpendicular to the axial direction of the second threaded rod 441.

Two second fixing frames 444 are in one-to-one correspondence with the two second mounting blocks 442, the second fixing frames 444 are fixedly mounted on the lower surface of the workbench 3 and are rotatably connected with the second rotating shafts 443 on the corresponding second mounting blocks 442, and the lower surface of the longitudinal workbench 3 is not in contact with the upper surface of the longitudinal adjusting frame 42, so that a gap is formed, friction force is reduced, and abrasion is reduced; there are four second support wheels 445, one second rotation axis 443 corresponds to two second support wheels 445, the corresponding two second support wheels 445 are respectively installed at both ends of the second rotation axis 443 extending out of the second kidney passage 422, and the second support wheels 445 roll on the side walls of the second sinking groove 421.

When the adjustment is needed, the worker rotates the second threaded rod 441, the second threaded rod 441 drives the second mounting block 442 to move, the second rotating shaft 443, the second fixing frame 444, the workbench 3 and the second mounting block 442 move synchronously, and the second supporting wheel 445 rolls while the second rotating shaft 443 moves, so that the sliding adjustment of the workbench 3 is realized.

Referring to fig. 3 and 4, in consideration of the fact that slippage may occur between the first supporting wheel 435 and the side wall of the first sinking groove 411 and between the second supporting wheel 445 and the side wall of the second sinking groove 421, gear rings 451 are integrally formed on the outer walls of the first supporting wheel 435 and the second supporting wheel 445, racks 452 (see fig. 5) are integrally formed on the side wall of the first sinking groove 411 in contact with the first supporting wheel 435 and the side wall of the second sinking groove 421 in contact with the second supporting wheel 445, and the gear rings 451 are engaged with the racks 452, so that slippage does not occur when rolling.

Referring to fig. 4 and 5, an annular groove 453 having a triangular cross section is formed in the ring gear 451 along the circumferential direction thereof, a stopper belt 454 is integrally provided on the rack 452 along the length direction thereof to be engaged with the annular groove 453, and the stopper belt 454 restricts the rolling path of the ring gear 451, so that the possibility of lateral deviation when the first support wheel 435 and the second support wheel 445 roll can be greatly reduced, and the stability of the work table 3 can be improved.

Referring to fig. 3 and 4, after a period of use, dust particles may accumulate on the rack 452, and the ring gear 451 may jolt when rotated, affecting the stability of the table 3. Therefore, the first fixing frame 434 is fixedly provided with the dust suction pipes 46 aligned with the upper surface of the rack 452, the dust suction pipes 46 are connected to the dust collector, and one first fixing frame 434 is provided with two dust suction pipes 46, the two dust suction pipes 46 are respectively located at two sides of the rolling direction of the first supporting wheel 435, and when the moving directions are different, the two dust suction pipes 46 suck air according to the specific moving direction to suck away dust particles. Similarly, the second fixing frame 444 is also provided with the dust suction pipes 46, and the two aligned racks 452 are also provided, and are respectively located on both sides of the rolling direction of the second support wheel 445.

Referring to fig. 4, in order to reduce the wear of the gear ring 451 and the rack 452, a driving member 474 is disposed on the first fixing frame 434, the driving member 474 employs a third cylinder, the third cylinder is fixedly mounted on the first fixing frame 434, a piston rod of the third cylinder moves vertically, an extension rod 471 is fixedly disposed on the piston rod of the third cylinder, and a sponge wheel 473 soaked with lubricating oil is rotatably mounted on the extension rod 471. The piston rod of the third cylinder extends and retracts to drive the sponge wheel 473 to ascend and descend, so that the sponge wheel 473 is in contact with the gear ring 451, and the gear ring 451 is lubricated.

In order to supplement the lubricating fluid in the sponge wheel 473, an oil storage groove 475 is fixedly arranged on the sliding rod, the lubricating oil is contained in the oil storage groove 475, the oil storage groove 475 is positioned below the sponge wheel 473, the part of the lower end of the sponge wheel 473 is immersed in the lubricating oil in the oil storage groove 475, and the side, close to the first support wheel 435, of the sponge wheel 473 is in contact with the gear ring 451. Similarly, an extension rod 471, a sponge wheel 473, a driving member 474, and an oil reservoir 475 are also provided on the second fixing frame 444 to lubricate the gear ring 451 on the longitudinal adjustment frame 42.

Referring to fig. 2, the observation mechanism includes a bracket 5, the bracket 5 is L-shaped and is fixedly disposed on the transverse adjusting bracket 41, and the length of the horizontal side of the bracket 5 is greater than the length of the longitudinal adjusting bracket 42 exceeding the transverse adjusting bracket 41, so that the longitudinal adjusting bracket 42 does not touch the vertical side of the bracket 5 when sliding. A display screen 51 is fixedly arranged at the middle position of one end, far away from the transverse adjusting frame 41, of the horizontal edge of the support 5, a camera (not shown in the figure) which is used for shooting towards the welding position and is electrically connected with the display screen 51 is fixedly arranged on the laser 2, and a lamp 53 which irradiates towards the welding position is also fixedly arranged on the laser 2. The lamp 53 is used to illuminate the weld and the camera transmits the image to the display screen 51 for viewing by the operator.

Referring to fig. 2 and 6, at the same time, since the second threaded rod 441 moves along the lateral adjustment frame 41 together with the longitudinal adjustment frame 42, it is inconvenient for a worker to adjust. In order to facilitate the adjustment of the second threaded rod 441, a second worm gear 541 is fixedly arranged at one end of the second threaded rod 441, which penetrates through the longitudinal adjusting frame 42, the end of the second threaded rod 441, which penetrates through the longitudinal adjusting frame 42, is close to the display screen 51, the bracket 5 is rotatably provided with a rotating rod 55, the length direction of which is parallel to the sliding direction of the longitudinal adjusting frame 42, the length of the rotating rod 55 is greater than that of the transverse adjusting frame 41, the peripheral surface of the rotating rod 55 is integrally provided with a flange along the length direction thereof, a second worm sleeve 542 meshed with the second worm gear 541 is slidably sleeved on the rotating rod 55, and the second worm sleeve 542 is circumferentially fixed with the rotating rod 55. The rotating rod 55 rotates to drive the second worm sleeve 542 to rotate, the second worm sleeve 542 rotates to drive the second worm wheel 541 to rotate, and the second threaded rod 441 and the second worm wheel 541 rotate synchronously to realize the rotation of the second threaded rod 441. Meanwhile, a limiting sleeve 48 is fixedly arranged at one end of the longitudinal adjusting frame 42 close to the display screen 51, and the rotating rod 55 rotates to penetrate through the limiting sleeve 48, so that the matching between the second threaded rod 441 and the second worm gear 541 is stable.

Referring to fig. 6, in order to facilitate the rotation of the rotating rod 55, an operating rod 56 parallel to the rotating rod 55 is further disposed on the bracket 5, one end of the operating rod 56 is rotatably connected to the bracket 5, the operating rod 56 is in gear transmission connection with the rotating rod 55, and the other end of the operating rod 56 is located on one side of the display screen 51 and is fixedly provided with a rotating block 57. The rotating rod 55 can be driven to rotate by rotating the rotating block 57, the rotating block 57 is closer to the display screen 51, and the position deviation of electric welding can be timely adjusted when the position deviation is seen.

Referring to fig. 2, the worktable 3 has a square plate shape, the clamping mechanism includes a fixed frame 31, the fixed frame 31 is vertically installed on the worktable 3 and is located at one end close to the display screen 51, and one of the long sides of the fixed frame 31 is fixed on the worktable 3 and is parallel to the length direction of the transverse adjusting bracket 41.

Referring to fig. 2 and 7, each long side of the fixed frame 31 is provided with two moving seats 311 horizontally and slidably at an interval, the two moving seats 311 vertically corresponding to each other form a group, the two moving seats 311 vertically corresponding to each other are fixedly connected to form a vertical moving column 312, and the moving column 312 enables the two moving seats 311 connected to each other to move on the fixed frame 31 synchronously.

The fixed frame 31 is provided with a second driving assembly connected with the moving base 311, the second driving assembly comprises two second screws (not shown in the figure) and a second motor 322, the two second screws are respectively rotatably mounted on the two long sides of the fixed frame 31, and the length direction of the second screws is parallel to the length direction of the long sides of the fixed frame 31; the second screw has two opposite screw sections, and the two moving bases 311 on the long side of the same fixing frame 31 are respectively in threaded fit with the two screw sections, so that the second screw can drive the two moving bases 311 on the long side of the same fixing frame 31 to move relatively.

The two second screws penetrate through the fixed frame 31, the first linkage rod 313 is rotatably installed on the vertical wide side of the fixed frame 31, and two ends of the first linkage rod 313 are respectively meshed and connected with the penetrating ends of the two second screws through the first bevel gear 314, so that the two second screws can synchronously rotate. The second motor 322 is disposed on the vertical wide side of the fixed frame 31, and the output shaft of the second motor 322 is provided with a second bevel gear 315 engaged with the first bevel gear 314. The second motor 322 drives the two second screws to rotate through the engagement of the first bevel gear 314 and the second bevel gear 315, and the second screws drive the moving base 311 to move, so that the two moving columns 312 move.

Referring to fig. 2 and 7, the lifting block 33 is slidably disposed on the moving column 312 along the vertical direction, the fixed frame 31 is provided with a third driving assembly 34 connected to the two lifting blocks 33 and connected to the second motor 322, the third driving assembly 34 includes a third screw 341, a first worm sleeve 342, a first worm wheel 343, and a second link rod 344, two third screws 341 are rotatably mounted on the two corresponding moving seats 311, and the third screws 341 are parallel to the moving column 312 and are in threaded engagement with the lifting blocks 33; the number of the first worm gears 343 is two, and the first worm gears 343 and the third screw rods 341 are coaxially and fixedly mounted at the lower ends of the two third screw rods 341, respectively, and rotate synchronously; the first worm wheel 342 is rotatably mounted on two movable bases 311 on the long side of the lower part of the fixed frame 31, and the first worm wheel 342 is engaged with the first worm wheel 343, and the axial direction of the first worm wheel 342 is parallel to the longitudinal direction of the long side of the fixed frame 31.

Two ends of the second link rod 344 are rotatably mounted on two vertical side wide edges of the fixed frame 31, the second link rod 344 coaxially penetrates through the two first worm sleeves 342, and protrusions are also arranged on the peripheral side of the second link rod 344 along the length direction, so that the second link rod 344 and the first worm sleeves 342 are fixed in the peripheral direction and slide axially. One end of the second linkage rod 344, which is close to the second motor 322, penetrates through the fixed frame 31, a first gear 345 is fixedly installed at one end of the second linkage rod 344, which penetrates through the fixed frame 31, and a second gear 323, which is meshed with the first gear 345, is fixed on an output shaft of the second motor 322.

Referring to fig. 7, a second cylinder 317 is fixedly installed on the table 3, a piston rod of the second cylinder 317 extends in a direction parallel to a longitudinal direction of a long side of the fixed frame 31, and a second motor 322 is fixedly installed on the piston rod of the second cylinder 317. The second gear 323 and the second bevel gear 315 are installed on the output shaft of the second motor 322 at intervals, and the second gear 323 and the second bevel gear 315 are located between the first gear 345 and the first bevel gear 314, and the engagement of the second gear 323 and the first gear 345 on the second motor 322 and the engagement of the first bevel gear 314 and the second bevel gear 315 are controlled by the extension and contraction of the piston rod of the second cylinder 317. Chamfers are provided at both ends of the teeth of the first gear 345 and both ends of the teeth of the second gear 323 to facilitate the insertion of the teeth of the first gear 345 into the teeth of the second gear 323.

Referring to fig. 2 and 8, an L-shaped first clamping block 331 is fixedly arranged on the side of the lifting block 33 away from the display screen 51, the long side of the first clamping block 331 is fixed on the lifting block 33, and the short side of the first clamping block 331 faces to another first clamping block 331; the horizontal side wall of the lifting block 33 is provided with a second clamping block 332 in an L shape in a sliding manner, the second clamping block 332 is arranged on one side of the two lifting blocks 33, the sliding direction of the second clamping block 332 is parallel to the sliding direction of the workbench 3, the long side of the second clamping block 332 is in dovetail fit with the lifting block 33, and the short side of the second clamping block 332 faces the long side of the first clamping block 331 on the same lifting block 33.

The short side of the first clamping block 331 and the short side of the second clamping block 332 form a welding part clamping area, a first driving assembly 35 connected with the second clamping block 332 is arranged on the lifting block 33, the first driving assembly 35 comprises a first air cylinder 351 and a connecting block 352, the first air cylinder 351 is fixedly installed on one side, facing the display screen 51, of the lifting block 33, the expansion direction of a piston rod of the first air cylinder 351 is parallel to the sliding direction of the second clamping block 332, and the connecting block 352 connects the piston rod of the first air cylinder 351 and one end, close to the display screen 51, of the second clamping block 332. The piston rod of the first cylinder 351 stretches and retracts to drive the second clamping block 332 to slide, so that the butt welding piece is clamped. In order to increase the clamping force, rubber cushions 333 are fixed to both the short sides of the first clamping block 331 and the short sides of the second clamping block 332, so that the friction force is increased.

Referring to fig. 2, a fan 21 is also fixedly arranged on the outer wall of the laser 2, and the fan 21 blows to the welding position to play a role in cooling and cleaning dust; and the lamp 53 is located on the path of the blower 21 blowing toward the welding site, the temperature of the lamp 53 can be lowered, and the possibility that the life of the lamp 53 is reduced due to a high temperature for a long time is reduced.

In order to improve the cleanliness of the air blown by the fan 21, the laser 2 is further provided with a water tank 22, the water tank 22 comprises a bottom box 221 and a top cover 222, the bottom box 221 is fixed on the laser 2, the opening of the bottom box 221 faces upwards, and the bottom box 221 is filled with water; the top cover 222 is screwed on the bottom case 221 and covers and seals the opening of the bottom case 221. An air supply pipe 223 is connected to the top cover 222 and the air inlet of the fan 21, and an air inlet pipe 224 is further arranged on the top cover 222, and the air inlet pipe 224 extends to just below the water surface. The air of the blower 21 is drawn from the water tank 22, the air in the water tank 22 is replenished through the air intake pipe 224, and the water filters the introduced air while passing through the water.

The working principle of the embodiment is as follows:

when the device is used, a weldment is placed on the workbench 3, the second motor 322 drives the second screw rod to rotate through the second air cylinder 317, and the weldment is enabled to lean against the short edges of the two first clamping blocks 331; according to the height of the weldment, the second motor 322 drives the first gear 345 to rotate through the second cylinder 317, so that the third screw 341 rotates, and the lifting of the lifting block 33 is realized; then start first cylinder 351, first cylinder 351 drives second grip block 332 and makes second grip block 332 support tightly to the weldment, realizes the centre gripping of butt welding spare.

The first drive motor 436 is then activated to move the longitudinal adjustment bracket 42 and rotate the rotary block 57 to move the table 3 until the end of the edge of the weldment to be welded is directly below the laser 2, and welding can begin.

In the welding process, fan 21, lamp 53, display screen 51, camera, dust absorption pipe 46 all are in operating condition, and the staff is according to the welding position that display screen 51 saw, if there is the deviation, then rotates commentaries on classics piece 57 for workstation 3 removes, guarantees welding position's accuracy.

When lubricating oil needs to be added, the third cylinder drives the extension rod 471 to descend to the point that the sponge wheel 473 contacts the gear ring 451, and the sponge wheel 473 is driven by the gear ring 451 to rotate, so that the lubricating oil on the sponge wheel 473 is coated on the gear ring 451, and the purpose of adding the lubricating oil is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an observation device of laser spot welder, includes frame (1), be provided with laser instrument (2) on frame (1), install horizontal alignment jig (41) on frame (1), it is provided with vertical alignment jig (42) to slide on horizontal alignment jig (41), it is provided with workstation (3) that are used for placing the weldment to slide on vertical alignment jig (42), workstation (3) are located the below of laser instrument (2), its characterized in that: horizontal alignment jig (41) are provided with support (5) that are L shape, be provided with display screen (51) on support (5), laser instrument (2) be provided with be used for taking a photograph to the welding department and with the camera that display screen (51) electricity is connected, just still be provided with lamp (53) of shining to the welding department on laser instrument (2).

2. The observation device of a laser spot welder according to claim 1, characterized in that: the outer wall of the laser (2) is further provided with a fan (21), and the fan (21) blows towards the welding position.

3. An observation apparatus of a laser spot welder according to claim 2, characterized in that: the lamp (53) is located on the path of the blower (21) towards the weld.

4. An observation apparatus of a laser spot welder according to claim 2, characterized in that: still be provided with water tank (22) on laser instrument (2), water is contained in water tank (22), and water is not full of water tank (22), the roof of water tank (22) with the air intake connection of fan (21) has air feed pipe (223), the roof of water tank (22) still is provided with intake pipe (224), intake pipe (224) extend just below the surface of water.

5. An observation apparatus of a laser spot welder according to claim 4, characterized in that: the water tank (22) comprises a bottom box (221) with an upward opening, a top cover (222) and an air supply pipe (223), wherein the bottom box (221) is arranged on the laser (2), the top cover (222) is installed on the bottom box (221) in a sealing mode through threads, and the air supply pipe (224) and the air inlet pipe (224) are arranged on the top cover (222).

6. The observation device of a laser spot welder according to claim 1, characterized in that: vertical alignment jig (42) is provided with second threaded rod (441) along its length direction rotation, workstation (3) be provided with second threaded rod (441) screw-thread fit's second installation piece (442), second threaded rod (441) are worn out vertical alignment jig (42) one end is provided with second worm wheel (541), support (5) are rotated and are installed length direction and be on a parallel with bull stick (55) of vertical alignment jig (42) slip direction, slide on bull stick (55) and overlap be equipped with second worm cover (542) of second worm wheel (541) meshing, second worm cover (542) with bull stick (55) circumference is fixed.

7. An observation apparatus of a laser spot welder according to claim 6, characterized in that: the transverse adjusting frame (41) is provided with a limiting sleeve (48), and the rotating rod (55) rotates along the limiting sleeve (48).

8. An observation apparatus of a laser spot welder according to claim 6, characterized in that: still be provided with on support (5) with bull stick (55) parallel action bars (56), action bars (56) one end is rotated and is connected on support (5), just action bars (56) with bull stick (55) are connected through gear drive, action bars (56) other end is located one side of display screen (51) and be provided with commentaries on classics piece (57).