Distance sensing type metal part electron beam welding device

Abstract

The invention belongs to the technical field of electron beam welding devices, and particularly relates to a distance sensing type metal part electron beam welding device which comprises a linkage assembly which is in transmission connection with the bottom of a driving assembly and used for electron beam welding. The bottom of the linkage assembly is in transmission connection with an auxiliary assembly used for positioning the offset end of a part in the electron beam welding process, and when the output end of the driving assembly works, welding heads at the bottom of the driving assembly are connected to different positions in the linkage assembly in a sliding mode so that the welding heads can be adjusted and used under different working conditions. And before the welding head makes contact with the part, the auxiliary assembly can be used for positioning and correcting the deviated end of the part in time, the deviated part is adjusted to the bottom of the welding head, precise welding treatment is conducted, the bottom of the linkage assembly can be used for conducting frosted trimming on the edge of the welded part, and the welding precision is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electron beam welding devices, and in particular relates to a distance sensing type metal parts electron beam welding device. Background Art

[0002] Electron beam welding is a process technology that uses a high-voltage electrostatic field to converge the electrons emitted by a hot cathode into an electron beam, which is then electromagnetically focused into a small spot with extremely high energy density (generally up to 105-8W / cm2) to bombard the workpiece to melt the metal on both sides of the weld quickly, thereby achieving the welding purpose.

[0003] After searching, in the prior art, Chinese patent publication number CN203156226U, authorization announcement date: 2013-08-28, discloses a high-efficiency electron beam welding device, which includes an electron gun, characterized in that the electron gun is movably arranged on a pre-vacuum chamber, the pre-vacuum chamber is connected to at least two welding chambers, and opening and closing doors are respectively arranged between the welding chamber and the pre-vacuum chamber. In a working state, the electron gun is in a welding position of a workpiece to be welded in a welding chamber, the opening and closing door of the welding chamber is opened, and the opening and closing doors of the other welding chambers are closed. The high-efficiency electron beam welding device effectively utilizes the auxiliary waiting time for replacing parts and obtaining vacuum, etc., greatly improves the working efficiency of the electron beam welding device, and has obvious technical advantages and significant economic benefits.

[0004] However, the device still has the following defects: although it can greatly improve the working efficiency of the electron beam welding device, it is unable to locate and correct the offset parts during the welding process, resulting in relatively poor welding accuracy. Summary of the invention

[0005] In response to the above problems, the present invention provides a distance sensing metal part electron beam welding device, including a drive assembly, the bottom transmission connection of the drive assembly is connected with a linkage assembly for electron beam welding, and the bottom transmission connection of the linkage assembly is connected with an auxiliary assembly for positioning the offset end of the part during electron beam welding.

[0006] Furthermore, the driving assembly includes a positioning plate; a mounting bracket is fixedly connected to the top of the positioning plate, and the central axis of the mounting bracket coincides with the central axis of the positioning plate, a first motor is embedded in the top of the mounting bracket, and a linkage arm is connected through the center of the central axis of the positioning plate.

[0007] Furthermore, a screw rod is threadedly connected to the top of the linkage arm, and the top of the screw rod is transmission-connected to the output end of the first motor, a welding head is fixedly installed on the bottom of the linkage arm, a second motor is embedded and installed on the top of the positioning plate and on the side away from the central axis, and the bottom of the second motor is transmission-connected to a driving gear.

[0008] Furthermore, the linkage assembly includes a first linkage cylinder and a second linkage cylinder; the top of the first linkage cylinder is a closed structure, and the bottom of the first linkage cylinder is an open structure, a guide hole is provided at the top of the first linkage cylinder, and the guide hole is sleeved on the outer wall of the linkage arm, and the top of the first linkage cylinder is rotatably connected to the bottom of the positioning plate.

[0009] Furthermore, an outer gear ring is fixedly connected to the outer wall of the first linkage cylinder, and the outer gear ring is meshingly connected to the driving gear. A plurality of linkage grooves are opened on the outer wall of the first linkage cylinder, and the inner walls of the plurality of linkage grooves are rotatably connected to threaded rods. A third motor is embedded and installed at the top end of the inner wall of each group of linkage grooves, and the output end of the third motor is transmission-connected to the threaded rod.

[0010] Furthermore, both ends of the second linkage cylinder are open structures, and the top opening of the second linkage cylinder is fixedly connected to the top opening of the first linkage cylinder. An embedded groove is provided at the bottom end of the inner wall of the second linkage cylinder, and a plurality of groups of hinge seats are fixedly connected to the bottom end of the inner wall of the embedded groove. A linkage plate is rotatably connected to each group of hinge seats, and a plurality of groups of electric push rods are embedded and installed at the top end of the inner wall of the embedded groove, and the output ends of the plurality of groups of electric push rods are movably connected to a side wall of the linkage plate.

[0011] Furthermore, several groups of the electric push rods are fixedly connected to an extension plate on the side away from the output end, a tension spring is arranged between one side wall of the extension plate and one side wall of the linkage plate, the tension spring is vertically arranged at the bottom of each group of electric push rods, and several groups of frosted protrusions are arranged on the outer wall of the linkage plate and on the side away from the electric push rods.

[0012] Furthermore, the auxiliary component includes a positioning cover; the top of the positioning cover is a ring-shaped opening, and the bottom of the positioning cover is an open structure, a plurality of groups of linkage rods are fixedly connected to the top of the positioning cover, and the cross-sections of the plurality of linkage rods are L-shaped, and the plurality of linkage rods are provided with internal threaded holes near the corners, and the internal threaded holes are threadedly connected to the threaded rods.

[0013] Furthermore, a plurality of groups of limiting holes are provided on the top of the positioning cover, and the inner walls of the plurality of groups of limiting holes are slidably connected with sliding rods, the top of the sliding rod is fixedly connected with a limiting block, the bottom of the sliding rod is fixedly connected with a part positioning plate, and a compression spring is sleeved on the sliding rod.

[0014] Furthermore, the part positioning plate is a fan-shaped structure, and the surface of the part positioning plate is rotatably connected to two groups of linked rollers, one end of the two groups of linked rollers is transmission-connected to a servo motor, and the servo motor is embedded and installed on the part positioning plate, and a pressure sensor is embedded and installed on the top of the part positioning plate, and the pressure sensor is movably contact-connected to the bottom of the compression spring.

[0015] The beneficial effects of the present invention are:

[0016] 1. When the output end of the driving component is working, the welding head at its bottom is slidably connected to different positions in the linkage component to meet the adjustment and use of the welding head under different working conditions. The auxiliary component can be used to timely locate and correct the offset end of the part before the welding head contacts the part, and the offset part can be adjusted to the bottom of the welding head for precise welding. The bottom of the linkage component can also be used to frosted and trim the edges of the welded parts to improve the accuracy of welding.

[0017] 2. After several sets of part positioning plates fall down and contact the parts, the several sets of part positioning plates are adjusted up and down according to the different concave and convex surfaces on the top of the parts. When one set of part positioning plates rises, it can squeeze the compression spring and detect through the pressure sensor that the part is located at the bottom of a certain part positioning plate. Then, the output end of the second motor is used to drive the driving gear to rotate, so that the meshing outer gear ring and the first linkage cylinder rotate synchronously, so that the gaps between the several sets of part positioning plates are used to clamp the parts, which is used to fix the position of the parts before welding;

[0018] 3. The output end of the first motor drives the screw rod to rotate, so that the linkage arm drives the welding head to fall and approach the fixed part. The parts are welded while the welding head is working continuously. If the position of the parts needs to be adjusted, the output end of the third motor only needs to drive the threaded rod to rotate, so that the linkage rod threaded on the threaded rod drives the positioning cover to move up, slowing down the tightening force of the parts, and using the output end of the servo motor to drive the two sets of linkage rollers to rotate, drive the parts at the bottom of the part positioning plate, so that the driven parts move toward the position of the welding head, and continue to weld the parts after the position adjustment;

[0019] 4. The parts moved to the bottom of the welding head can be sleeved through the second linkage cylinder, and the linkage plate is pushed by the output end of the electric push rod. After the linkage plate rotates around the hinge seat, the frosted protrusions on one side wall of several groups of linkage plates form a conical frosting cavity. When the second motor continuously drives the driving gear to rotate, the formed frosting cavity can be used to evenly frost the top and side walls of the welded parts.

[0020] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of an electron beam welding device according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram showing the structure of the linkage component and the auxiliary component according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the structure of a driving component according to an embodiment of the present invention is shown;

[0025] Figure 4 The structure of the linkage component of the embodiment of the present invention is shown Figure 1 ;

[0026] Figure 5 The structure of the linkage component of the embodiment of the present invention is shown Figure 2 ;

[0027] Figure 6 The structure of the auxiliary components of the embodiment of the present invention is shown Figure 1 ;

[0028] Figure 7 The structure of the auxiliary components of the embodiment of the present invention is shown Figure 2 .

[0029] In the figure: 1. driving assembly; 11. positioning plate; 12. mounting bracket; 13. first motor; 14. linkage arm; 15. lead screw; 16. welding head; 17. second motor; 18. driving gear; 2. linkage assembly; 21. first linkage cylinder; 22. guide hole; 23. outer gear ring; 24. linkage groove; 25. threaded rod; 26. second linkage cylinder; 27. embedded groove; 28. hinge seat; 29. ​​linkage plate; 210. electric push rod; 211. extension plate; 212. tension spring; 3. auxiliary assembly; 31. positioning cover; 32. linkage rod; 33. internal threaded hole; 34. limiting hole; 35. sliding rod; 36. limiting block; 37. part positioning plate; 38. compression spring; 39. linkage roller. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The embodiment of the present invention provides a distance sensing type metal parts electron beam welding device, including a driving component 1; illustratively, as Figure 1 and Figure 2 shown.

[0032] The bottom transmission connection of the driving component 1 is connected with a linkage component 2 for electron beam welding, and the bottom transmission connection of the linkage component 2 is connected with an auxiliary component 3 for positioning the offset end of the part during electron beam welding.

[0033] Specifically, when the output end of the driving component 1 is working, the welding head at its bottom is slidably connected to different positions in the linkage component 2, so as to meet the adjustment and use of the welding head under different working conditions, and the auxiliary component 3 can be used to timely locate and correct the offset end of the part before the welding head contacts the part, and the offset part can be adjusted to the bottom of the welding head for precise welding processing, and the bottom of the linkage component 2 can also be used to frosted and trim the edges of the welded parts.

[0034] The drive assembly 1 includes a positioning plate 11; illustratively, as Figure 3 shown.

[0035] A mounting bracket 12 is fixedly connected to the top of the positioning plate 11, and the central axis of the mounting bracket 12 coincides with the central axis of the positioning plate 11. A first motor 13 is embedded in the top of the mounting bracket 12. A linkage arm 14 is connected through the center of the central axis of the positioning plate 11. A screw rod 15 is threadedly connected to the top of the linkage arm 14, and the top of the screw rod 15 is transmission-connected to the output end of the first motor 13. A welding head 16 is fixedly installed at the bottom of the linkage arm 14. A second motor 17 is embedded in the top of the positioning plate 11 and on the side away from the central axis, and a driving gear 18 is transmission-connected to the bottom of the second motor 17.

[0036] The linkage assembly 2 includes a first linkage cylinder 21 and a second linkage cylinder 26; for example, Figure 4 and Figure 5 shown.

[0037] The top of the first linkage cylinder 21 is a closed structure, and the bottom of the first linkage cylinder 21 is an open structure. A guide hole 22 is provided at the top of the first linkage cylinder 21, and the guide hole 22 is sleeved on the outer wall of the linkage arm 14. The top of the first linkage cylinder 21 is rotatably connected to the bottom of the positioning plate 11. The outer wall of the first linkage cylinder 21 is fixedly connected with an outer gear ring 23, and the outer gear ring 23 is meshed with the driving gear 18. The outer wall of the first linkage cylinder 21 is provided with a plurality of linkage grooves 24, and the inner walls of the plurality of linkage grooves 24 are rotatably connected with threaded rods 25. The top of the inner wall of each group of linkage grooves 24 is embedded with a third motor, and the output end of the third motor is transmission-connected with the threaded rod 25.

[0038] Both ends of the second linkage cylinder 26 are open structures, and the top opening of the second linkage cylinder 26 is fixedly connected to the top opening of the first linkage cylinder 21. An embedded groove 27 is provided at the bottom end of the inner wall of the second linkage cylinder 26, and a plurality of hinge seats 28 are fixedly connected to the bottom end of the inner wall of the embedded groove 27. A linkage plate 29 is rotatably connected to each group of hinge seats 28. A plurality of electric push rods 210 are embedded and installed at the top end of the inner wall of the embedded groove 27, and the output ends of the plurality of electric push rods 210 are movably connected to a side wall of the linkage plate 29. An extension plate 211 is fixedly connected to the side away from the output end of the plurality of electric push rods 210. A tension spring 212 is provided between one side wall of the extension plate 211 and one side wall of the linkage plate 29. The tension spring 212 is vertically arranged at the bottom of each group of electric push rods 210, and a plurality of frosted protrusions are provided on the outer wall of the linkage plate 29 and on the side away from the electric push rod 210.

[0039] The auxiliary component 3 includes a positioning cover 31; illustratively, as Figure 6 and Figure 7 shown.

[0040] The top of the positioning cover 31 is an annular opening, and the bottom of the positioning cover 31 is an open structure. The top of the positioning cover 31 is fixedly connected with a plurality of linkage rods 32, and the cross-sections of the plurality of linkage rods 32 are L-shaped. The plurality of linkage rods 32 are provided with internal threaded holes 33 near the corners, and the internal threaded holes 33 are threadedly connected with the threaded rods 25. The top of the positioning cover 31 is also provided with a plurality of limiting holes 34, and the inner walls of the plurality of limiting holes 34 are slidably fitted with sliding rods 35. The tops of the sliding rods 35 are A fixedly connected limiting block 36 is provided, and a part positioning plate 37 is fixedly connected to the bottom of the sliding rod 35, and a compression spring 38 is sleeved on the sliding rod 35. The part positioning plate 37 is a fan-shaped structure, and two groups of interlocking rollers 39 are rotatably connected to the surface of the part positioning plate 37, and one end of the two groups of interlocking rollers 39 is transmission-connected to a servo motor, and the servo motor is embedded and installed on the part positioning plate 37, and a pressure sensor is embedded and installed on the top of the part positioning plate 37, and the pressure sensor is movably contact-connected to the bottom of the compression spring 38.

[0041] Specifically, after a plurality of groups of the part positioning plates 37 fall and contact the parts, the plurality of groups of the part positioning plates 37 are raised and lowered according to the different concave and convex surfaces on the top of the parts. When a group of the part positioning plates 37 rises, the compression spring 38 can be squeezed and the pressure sensor can be used to detect that the part is located at the bottom of a certain part positioning plate 37. Then, the output end of the second motor 17 is used to drive the driving gear 18 to rotate, so that the meshing outer gear ring 23 and the first linkage cylinder 21 rotate synchronously, so that the gaps between the plurality of groups of the part positioning plates 37 are used to clamp the parts, which is used to fix the position of the parts before welding.

[0042] The output end of the first motor 13 drives the screw rod 15 to rotate, so that the linkage arm 14 drives the welding head 16 to fall and approach the part whose position is fixed, and the part is welded while the welding head 16 is continuously working. If the position of the part needs to be adjusted, the output end of the third motor only needs to drive the threaded rod 25 to rotate, so that the linkage rod 32 threadedly connected to the threaded rod 25 drives the positioning cover 31 to move up, slowing down the tightening force on the part, and using the output end of the servo motor to drive the two sets of linkage rollers 39 to rotate, drive the part at the bottom of the part positioning plate 37, so that the driven part moves toward the position of the welding head 16, and is used to continue welding the part whose position is adjusted;

[0043] The second linkage cylinder 26 can be used to socket the parts moved to the bottom of the welding head 16, and the linkage plate 29 is pushed by the output end of the electric push rod 210, so that the linkage plate 29 rotates around the hinge seat 28, and the frosted protrusions on one side wall of several groups of linkage plates 29 are formed into a conical frosting cavity. When the second motor 17 continues to drive the driving gear 18 to rotate, the formed frosting cavity can be used to evenly frost the top and side walls of the welded parts.

[0044] The working principle of the distance sensing type metal parts electron beam welding device proposed by the embodiment of the present invention is as follows:

[0045] After a plurality of sets of part positioning plates 37 fall and contact the parts, the plurality of sets of part positioning plates 37 are adjusted up and down according to the different concave and convex surfaces on the top of the parts. When a set of part positioning plates 37 rises, the compression spring 38 can be squeezed and the pressure sensor can be used to detect that the part is located at the bottom of a certain part positioning plate 37. Then, the output end of the second motor 17 is used to drive the driving gear 18 to rotate, so that the meshing outer gear ring 23 and the first linkage cylinder 21 rotate synchronously, so that the gaps between the plurality of sets of part positioning plates 37 are used to clamp the parts, which is used to fix the position of the parts before welding, and can timely locate the offset end of the parts.

[0046] The output end of the first motor 13 drives the screw rod 15 to rotate, so that the linkage arm 14 drives the welding head 16 to fall and approach the fixed part, and the part is welded while the welding head 16 is working continuously. If the position of the part needs to be adjusted, the output end of the third motor only needs to drive the threaded rod 25 to rotate, so that the linkage rod 32 threadedly connected to the threaded rod 25 drives the positioning cover 31 to move up, slowing down the tightening force on the part, and using the output end of the servo motor to drive the two sets of linkage rollers 39 to rotate, drive the part at the bottom of the part positioning plate 37, and promptly correct the offset end of the part, so that the driven part moves toward the position of the welding head 16, and is used to continue welding the part after the position adjustment;

[0047] The parts moved to the bottom of the welding head 16 can be sleeved through the second linkage cylinder 26, and the linkage plate 29 is pushed by the output end of the electric push rod 210. After the linkage plate 29 rotates around the hinge seat 28, several groups of frosted protrusions on the side wall of the linkage plate 29 form a conical frosting cavity. When the second motor 17 continues to drive the driving gear 18 to rotate, the formed frosting cavity can be used to evenly frost the top and side walls of the welded parts.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A distance sensing type metal parts electron beam welding device, characterized in that: The invention comprises a driving component, the bottom of which is transmission-connected with a linkage component for electron beam welding, and the bottom of which is transmission-connected with an auxiliary component for positioning the offset end of a part during electron beam welding.

2. The distance sensing type metal parts electron beam welding device according to claim 1, characterized in that: The driving assembly includes a positioning plate; a mounting bracket is fixedly connected to the top of the positioning plate, and the central axis of the mounting bracket coincides with the central axis of the positioning plate; a first motor is embedded in the top of the mounting bracket, and a linkage arm is connected through the center of the central axis of the positioning plate.

3. The distance sensing type metal parts electron beam welding device according to claim 2, characterized in that: A screw rod is threadedly connected to the top of the linkage arm, and the top of the screw rod is transmission-connected to the output end of the first motor. A welding head is fixedly installed on the bottom of the linkage arm. A second motor is embedded and installed on the top of the positioning plate and on the side away from the central axis. The bottom of the second motor is transmission-connected to a driving gear.

4. The distance sensing type metal parts electron beam welding device according to claim 1, characterized in that: The linkage assembly includes a first linkage cylinder and a second linkage cylinder; the top of the first linkage cylinder is a closed structure, and the bottom of the first linkage cylinder is an open structure, a guide hole is provided at the top of the first linkage cylinder, and the guide hole is sleeved on the outer wall of the linkage arm, and the top of the first linkage cylinder is rotatably connected to the bottom of the positioning plate.

5. The distance sensing type metal parts electron beam welding device according to claim 4, characterized in that: The outer wall of the first linkage cylinder is fixedly connected with an outer gear ring, and the outer gear ring is meshed with the driving gear. The outer wall of the first linkage cylinder is provided with a plurality of linkage grooves, and the inner walls of the plurality of linkage grooves are rotatably connected with threaded rods. A third motor is embedded and installed at the top end of the inner wall of each group of linkage grooves, and the output end of the third motor is transmission-connected with the threaded rod.

6. The distance sensing type metal parts electron beam welding device according to claim 4, characterized in that: Both ends of the second linkage cylinder are open structures, and the top opening of the second linkage cylinder is fixedly connected to the top opening of the first linkage cylinder. An embedded groove is provided at the bottom end of the inner wall of the second linkage cylinder, and a plurality of groups of hinge seats are fixedly connected to the bottom end of the inner wall of the embedded groove. A linkage plate is rotatably connected to each group of hinge seats, and a plurality of groups of electric push rods are embedded and installed at the top end of the inner wall of the embedded groove, and the output ends of the plurality of groups of electric push rods are movably contacted and connected to one side wall of the linkage plate.

7. The distance sensing type metal parts electron beam welding device according to claim 6, characterized in that: Several groups of electric push rods are fixedly connected to an extension plate on one side away from the output end, a tension spring is arranged between one side wall of the extension plate and one side wall of the linkage plate, the tension spring is vertically arranged at the bottom of each group of electric push rods, and several groups of frosted protrusions are arranged on the outer wall of the linkage plate and on the side away from the electric push rods.

8. The distance sensing type metal parts electron beam welding device according to claim 1, characterized in that: The auxiliary component includes a positioning cover; the top of the positioning cover is an annular opening shape, and the bottom of the positioning cover is an open structure, a plurality of groups of linkage rods are fixedly connected to the top of the positioning cover, and the cross-sections of the plurality of linkage rods are L-shaped, and the plurality of linkage rods are provided with internal threaded holes near the corners, and the internal threaded holes are threadedly connected to the threaded rods.

9. The distance sensing type metal parts electron beam welding device according to claim 8, characterized in that: The top of the positioning cover is also provided with several groups of limiting holes, the inner walls of the several groups of limiting holes are slidably connected with sliding rods, the top of the sliding rod is fixedly connected with a limiting block, the bottom of the sliding rod is fixedly connected with a part positioning plate, and a compression spring is sleeved on the sliding rod.

10. The distance sensing type metal parts electron beam welding device according to claim 9, characterized in that: The part positioning plate is a fan-shaped structure, and the surface of the part positioning plate is rotatably connected with two groups of linked rollers, one end of the two groups of linked rollers is transmission-connected with a servo motor, and the servo motor is embedded and installed on the part positioning plate, and a pressure sensor is embedded and installed on the top of the part positioning plate, and the pressure sensor is movably contact-connected with the bottom of the compression spring.

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