Laser welding device for sensor housing

Abstract

The present invention discloses a laser welding device for a sensor housing, including a base, a column, and a welding mechanism; the outer side of the column is rotatably connected to a rotary table, the inner side of the U-shaped frame is rotatably connected to a rotating frame, a receiving platform is movably arranged above the base, and a first motor is installed on the rotating frame; a driving member is arranged on the frame, and a guide member and a connecting member are arranged on the outer side of the side extension shaft; a transmission member is arranged on the sleeve. In the present invention, firstly, after the shell parts are welded, the receiving platform first slides away from the mounting frame and rotates upward with the receiving platform, which is convenient for the staff to replace the sensor shell while ensuring the safety of the shell; secondly, the two shell parts can be docked only by controlling the horizontal movement of the sleeve, and after the welding process is completed, the shell parts are automatically separated from one of the mounting mechanisms, which is conducive to simplifying the operating procedures and improving the welding efficiency of the sensor shell.

Description

Technical Field

[0001] The invention relates to the technical field of sensor processing equipment, and in particular to a laser welding device for a sensor housing. Background Art

[0002] The sensor is a detection device and is the primary link in achieving automatic detection and automatic control.

[0003] A sensor generally consists of a sensitive element of an integrated sensor, a conversion element, a circuit element, and a shell of a numerical display instrument. The shell is usually made by welding a front shell and a rear shell with a hollow structure. In the prior art, when the sensor shell parts are welded by a laser welding device, in order to facilitate the docking of the two shell parts, the disassembly and assembly stations of the shell parts are located on the opposite sides of the two sets of mounting mechanisms, and the opposite sides of the mounting mechanisms are usually distributed vertically. After the welding mechanism completes the processing of the shell parts, as the mounting mechanism releases the clamping and fixing of the sensor shell, the shell parts will directly fall off the mounting mechanism in a falling manner, which can easily cause damage to the sensor shell.

[0004] Based on the above defects, a laser welding device for a sensor housing is provided. Summary of the invention

[0005] The object of the present invention is to provide a laser welding device for a sensor housing in order to solve the above-mentioned problem.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a laser welding device for a sensor housing comprises a base, a column fixed on the upper end of the base, and a welding mechanism installed on the column;

[0007] The outer side of the column is rotatably connected to a rotating platform, and a mounting rack distributed in an annular shape is fixed on the rotating platform. The mounting rack is matched with the sleeve of the sensor housing parts. A U-shaped frame is fixed on the base through a frame rod, and a rotating frame is rotatably connected to the inner side of the U-shaped frame. A receiving platform that matches the sensor housing parts is movably arranged above the base, and a shaft rod is rotatably connected to the rotating frame, and a sliding sleeve fixed to the receiving platform is slidably connected to the outer side of the shaft rod, and a first motor for controlling the rotation of the shaft rod is installed on the rotating frame;

[0008] Two vertical frames are fixed on the base, and the inner side of the vertical frame is rotatably connected with a side extension shaft coaxially fixed with the rotating frame, and the outer side of the side extension shaft is slidably sleeved with a sleeve, and a driving member for driving the sleeve to slide is arranged on the vertical frame, and a guide member and a linking member are arranged on the outer side of the side extension shaft. When the two sleeves slide in opposite directions, the side extension shaft first drives the rotating frame to rotate ninety degrees under the action of the guide member, and then the sliding sleeve drives the receiving platform to approach the mounting frame under the action of the linking member;

[0009] The sleeves are provided with transmission parts. When the two sleeves move in opposite directions, the rotary table rotates under the action of the transmission parts to switch the mounting rack at the welding station. When the two sleeves move in the opposite direction, the rotary table remains stationary relative to the base.

[0010] Preferably, a bending frame is fixed on the sleeve, the driving member includes a bidirectional screw rotatably connected between the two vertical frames, and the bidirectional screw is screwed together with the bending frame, and a second motor for controlling the rotation of the bidirectional screw is installed at the outer end of the vertical frame.

[0011] Preferably, a sector plate is fixedly provided on the inner side of the U-shaped frame, a sliding frame is fixedly provided on the side end of the sliding sleeve via a support rod, a sliding groove is penetrated through the sector plate to cooperate with the sliding of the support rod, and the sliding groove consists of an arc groove and a straight groove.

[0012] Preferably, the guide member comprises a protrusion fixed on the inner wall of the sliding sleeve, and a slide rail for slidingly cooperating with the protrusion is formed on the side wall of the lateral extension shaft, and the slide rail is composed of a spiral section and a straight section.

[0013] Preferably, the linkage comprises a slip ring slidably sleeved on the outside of the side extension shaft, a rotary arm is rotatably connected between the slip ring and the sliding frame, and a compression spring is sleeved on the outside of the side extension shaft for pressing the slip ring outward by abutting against the U-shaped frame.

[0014] Preferably, the transmission member includes a turntable rotatably connected to the outside of the frame rod, and a component that drives the turntable to rotate. Two shaft wheels are rotatably connected to the base, one of which is coaxially fixed to the turntable, and the other is coaxially fixed to the turntable. The outer sides of the two shaft wheels are provided with belts for matching transmission.

[0015] Preferably, the component driving the turntable to rotate includes a guide rod slidably connected to the bending frame, the guide rod is an umbrella-shaped structure, the inner end of the bending frame is fixed with a baffle that cooperates with the guide rod to slide through, and the bottom of the baffle abuts against a reset spring that acts downward on the guide rod.

[0016] Preferably, the turntable is formed with a first slide and a second slide that cooperate with the sliding of the guide rod. The first slide is arranged obliquely along the turntable, and the second slide is arranged radially along the turntable. A step surface that cooperates with the guide rod to bounce off is formed at the intersection of two adjacent second slides of the first slide, and the end surface of the second slide that cooperates with the sliding of the guide rod forms a slope surface that presses the guide rod upward.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In the present application, after the shell parts are welded, the two sleeves are controlled to move in the opposite direction so that the receiving platform first slides away from the mounting rack, and the shell parts that have been welded are first pulled out of the mounting rack. As the sleeves continue to move in the opposite direction, the shaft rotates to a vertical state, causing the receiving platform to rotate upward. While ensuring the safety of the shell, it is convenient for the staff to replace the sensor shell that has been welded.

[0019] 2. In the present application, the docking of the two shell parts can be achieved only by controlling the horizontal movement of the sleeve, and after the welding process is completed, the shell parts are automatically separated from one of the mounting mechanisms, which is conducive to simplifying the operating procedures and improving the welding processing efficiency of the device for the sensor shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a welding device provided according to an embodiment of the present invention is shown;

[0021] Figure 2 A cross-sectional view of a welding device provided according to an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram of the inner structure of a stand provided according to an embodiment of the present invention is shown;

[0023] Figure 4 A cross-sectional view of the inner structure of a stand provided according to an embodiment of the present invention is shown;

[0024] Figure 5 It is shown that according to the present invention Figure 4 A partial enlarged schematic diagram of point A is provided;

[0025] Figure 6 A schematic diagram of the top end surface of a turntable provided according to an embodiment of the present invention is shown.

[0026] Legend:

[0027] 1. Base; 2. Column; 3. Welding mechanism; 4. Rotary table; 5. Loading rack; 6. Rack rod; 7. Rotary disk; 701, first slideway; 702, second slideway; 8. Axle wheel; 9. Belt; 10. U-shaped frame; 11. Fan-shaped plate; 1101, slide groove; 12. Rotary frame; 13. Undertaking platform; 14. Sliding sleeve; 15. Axle rod; 16. First motor; 17. Frame; 18. Lateral shaft; 1801, Slide rail; 19. Slip ring; 20. Sliding frame; 21. Support rod; 22. Swivel arm; 23. Compression spring; 24. Sleeve; 25. Protrusion; 26. Bending frame; 27. Bidirectional screw; 28. Second motor; 29. ​​Guide rod; 30. Baffle; 31. Reset spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0029] See also Figure 1-6 The present invention provides a technical solution: a laser welding device for a sensor housing, comprising a base 1, a column 2 fixed on the upper end of the base 1, and a welding mechanism 3 installed on the column 2; the welding mechanism 3 is an existing laser welding method, which uses a high-energy-density laser beam as a heat source to perform precision welding processing on parts.

[0030] The outer side of the column 2 is rotatably connected with a rotary table 4, and a mounting frame 5 distributed in an annular shape is fixed on the rotary table 4. The mounting frame 5 is matched with the sleeve of the sensor housing parts. A U-shaped frame 10 is fixed on the base 1 through a frame rod 6. The inner side of the U-shaped frame 10 is rotatably connected with a rotating frame 12. A receiving platform 13 that matches the sensor housing parts is movably arranged above the base 1. A shaft rod 15 is rotatably connected to the rotating frame 12. A sliding sleeve 14 fixed to the receiving platform 13 is slidably connected to the outer side of the shaft rod 15. A first motor 16 for controlling the rotation of the shaft rod 15 is installed on the rotating frame 12;

[0031] The receiving platform 13 is used to mount the sensor housing, and the mounting frame 5 is used to mount the housing of the sensor connected instrument. The end face of the receiving platform 13 that contacts the sensor housing is an arc structure that matches it. A clamping plate that matches the sensor housing should be set on the receiving platform 13, and the clamping plate is controlled to be loose and tight on the sensor housing through the existing hydraulic telescopic mechanism; when the shaft rod 15 and the sliding sleeve 14 are in a vertical state, the receiving platform 13 lifts the end face of the sensor housing upward, which is convenient for the staff to replace the sensor housing that has been welded on the receiving platform 13; when the shaft rod 15 is in a horizontal mounting state with the rotation of the rotating frame 12, the sensor housing parts mounted on the receiving platform 13 are aligned with the housing parts on the corresponding mounting frame 5. When the sliding sleeve 14 slides along the shaft rod 15, the parts of the two sensor housings are connected, and the welding mechanism 3 is started to weld the joints of the two parts. At the same time, the first motor 16 will drive the shaft rod 15 to rotate, so that the welding mechanism 3 performs circumferential welding on the joints of the two parts.

[0032] Two vertical frames 17 are fixed on the base 1. The inner side of the vertical frame 17 is rotatably connected with a side extension shaft 18 coaxially fixed with the rotating frame 12. The outer side of the side extension shaft 18 is slidably sleeved with a sleeve 24. A driving member for driving the sleeve 24 to slide is provided on the vertical frame 17. A guide member and a linkage member are provided on the outer side of the side extension shaft 18. When the two sleeves 24 slide in opposite directions, the side extension shaft 18 first drives the rotating frame 12 to rotate ninety degrees under the action of the guide member, and then the sliding sleeve 14 drives the receiving platform 13 to approach the mounting frame 5 under the action of the linkage member.

[0033] When the staff completes the placement of the shell parts on the receiving platform 13, the two sleeves 24 are controlled by the driving member to move synchronously in opposite directions. The side extension shaft 18 will drive the rotating frame 12 to rotate under the action of the guide member, so that the sensor shell placed on the receiving platform 13 rotates toward the mounting frame 5. Subsequently, as the sleeve 24 continues to slide in opposite directions, the rotating frame 12 will remain stationary relative to the U-shaped frame 10, and the sliding sleeve 14 will drive the receiving platform 13 to slide under the action of the linkage member until the receiving platform 13 and the shell parts on the mounting frame 5 are aligned. After the welding process of the shell parts is completed, the two sleeves 24 are controlled by the driving member to move in the opposite direction synchronously, so that the receiving platform 13 first slides horizontally with the sliding sleeve 14 away from the mounting rack 5, and the shell parts that have completed the welding will be first pulled out of the mounting rack 5. As the sleeve 24 continues to move in the opposite direction, the shaft 15 will be in a vertical state with the rotation of the rotating frame 12, so that the receiving platform 13 fixed with the sliding sleeve 14 rotates upward, thereby facilitating the staff to replace the sensor shell that has completed the welding process.

[0034] A transmission member is provided on the sleeve 24. When the two sleeves 24 move in opposite directions, the rotary table 4 rotates under the action of the transmission member to switch the loading rack 5 at the welding station. When the two sleeves 24 move in the opposite direction, the rotary table 4 remains stationary relative to the base 1; when the two sleeves 24 are moving in opposite directions, the rotary table 4 will first rotate under the action of the transmission member to switch the loading rack 5 at the welding station until the shaft 15 rotates from the vertical state to the horizontal state, and the loading rack 5 will also be switched into place. At this time, as the sleeves 24 continue to move in opposite directions, the rotary table 4 will remain stationary, which is conducive to the smooth docking of the two shell parts; when the two sleeves 24 are moving in the opposite direction, the rotary table 4 will remain stationary, which is conducive to the shell parts that have completed the welding process to follow the receiving table 13 and slide off the loading rack 5. The two shell parts can be docked only by controlling the horizontal movement of the sleeve 24, and the shell parts can be automatically separated from one of the mounting mechanisms after the welding process is completed, which is beneficial to simplify the operating procedures and improve the welding process efficiency of the sensor shell.

[0035] Specifically, Figure 1-4As shown, a bending frame 26 is fixedly provided on the sleeve 24, and the driving member includes a bidirectional screw 27 rotatably connected between the two vertical frames 17, and the bidirectional screw 27 is screwed together with the bending frame 26, and a second motor 28 for controlling the rotation of the bidirectional screw 27 is installed at the outer end of the vertical frame 17; the second motor 28 is started to control the rotation of the bidirectional screw 27, so that the bending frame 26 screwed together with the bidirectional screw 27 drives the sleeve 24 to slide along the lateral extension shaft 18.

[0036] Specifically, Figure 1 and Figure 2 As shown, a sector plate 11 is fixedly provided on the inner side of the U-shaped frame 10, and a sliding frame 20 is fixedly provided on the side end of the sliding sleeve 14 through a support rod 21. A sliding groove 1101 is provided through the sector plate 11 to cooperate with the sliding of the support rod 21, and the sliding groove 1101 is composed of an arc groove and a straight groove; the sliding groove 1101 is used to limit the relative position of the sliding sleeve 14 and the shaft rod 15. When the two sleeves 24 move in opposite directions, the sliding sleeve 14 rotates with the shaft rod 15, and the support rod 21 will slide along the arc groove of the sliding groove 1101. During this process, the sliding sleeve 14 remains stationary relative to the support rod 21. As the shaft rod 15 rotates into place, the sliding frame 20 will drive the sliding sleeve 14 to slide out along the shaft rod 15 under the action of the guide member. During this process, the support rod 21 will slide along the straight groove of the sliding groove 1101.

[0037] The guide member includes a protrusion 25 fixed on the inner wall of the sliding sleeve 14, and a sliding rail 1801 is formed on the side wall of the side extension shaft 18 to slide with the protrusion 25, and the sliding rail 1801 is composed of a spiral section and a straight section; the connecting member includes a slip ring 19 slidably sleeved on the outside of the side extension shaft 18, and a rotary arm 22 is rotatably connected between the slip ring 19 and the sliding frame 20, and the outer side of the side extension shaft 18 is sleeved with a compression spring 23 that presses the slip ring 19 outward by abutting the U-shaped frame 10.

[0038] When the two sleeves 24 move in opposite directions, the protrusion 25 will first slide along the spiral section of the slide rail 1801, and through the compression transmission of the protrusion 25 on the slide rail 1801, the side extension shaft 18 will drive the rotating frame 12 to rotate along the U-shaped frame 10. When the protrusion 25 slides along the straight section of the slide rail 1801, the side extension shaft 18 will remain stationary relative to the U-shaped frame 10. At this time, the slip ring 19, under the push of the sleeve 24, drives the sliding sleeve 14 fixed to the sliding frame 20 to extend outward relative to the shaft 15 through the swing arm 22; when the two sleeves 24 move in opposite directions, the slip ring 19 will slide and reset in the direction away from the fan plate 11 under the action of the compression spring 23.

[0039] Specifically, Figure 1-6As shown, the transmission member includes a turntable 7 rotatably connected to the outside of the frame rod 6, and a component that drives the turntable 7 to rotate. Two shaft wheels 8 are rotatably connected to the base 1, one of which is coaxially fixed to the turntable 4, and the other is coaxially fixed to the turntable 7. The outer sides of the two shaft wheels 8 are provided with a belt 9 for matching transmission; when the turntable 7 drives the shaft wheel 8 coaxially fixed thereto to rotate, the two shaft wheels 8 will rotate synchronously under the action of the belt 9, thereby causing the turntable 4 to rotate synchronously with the turntable 7.

[0040] The components that drive the turntable 7 to rotate include a guide rod 29 that is slidably connected to the bending frame 26. The guide rod 29 is an umbrella-shaped structure. A baffle 30 that cooperates with the guide rod 29 to slide through is fixed at the inner end of the bending frame 26. The bottom of the baffle 30 abuts against a return spring 31 that acts downward on the guide rod 29; a first slide 701 and a second slide 702 that cooperate with the sliding of the guide rod 29 are formed in the turntable 7. The first slide 701 is arranged obliquely along the turntable 7, and the second slide 702 is arranged radially along the turntable 7. A step surface that cooperates with the guide rod 29 to bounce off is formed at the intersection of two adjacent second slides 702 of the first slide 701, and a slope surface that presses the guide rod 29 upward is formed on the end face of the second slide 702 that cooperates with the guide rod 29 to slide.

[0041] When the two sleeves 24 move in opposite directions, the guide rod 29 will first slide along the first slideway 701, and the guide rod 29 will compress the first slideway 701 to drive the turntable 7 to rotate. When the guide rod 29 slides out of the first slideway 701, the guide rod 29 will bounce into the second slideway 702 under the action of the return spring 31. As the sleeves 24 continue to move in opposite directions, the guide rod 29 will slide radially along the second slideway 702. During this process, the turntable 7 will remain stationary relative to the base 1. state; when the two sleeves 24 move in the opposite direction, the guide rod 29 will slide along the second slide 702. As the two sleeves 24 slide in the opposite direction to the position, the guide rod 29 will slide out of the second slide 702, and then bounce back into the first slide 701 under the action of the return spring 31. Through the coordinated setting of the first slide 701 and the second slide 702, the guide rod 29 slides back and forth with the sleeve 24, driving the turntable 7 to rotate unidirectionally, thereby satisfying the automatic switching of the shell parts that have completed the welding process.

[0042] When the two sleeves 24 move in opposite directions, the protrusion 25 first slides along the spiral section of the slide rail 1801. During this process, the support rod 21 slides along the arc groove of the slide groove 1101, and the guide rod 29 slides along the first slide track 701. When the protrusion 25 slides into the straight groove of the slide rail 1801, the support rod 21 will slide into the straight section of the slide groove 1101, and the guide rod 29 will slide along the second slide track 702; when the two sleeves 24 move in the opposite direction, the support rod 21 will continue to slide along the second slide track 702 until the sleeve 24 slides in the opposite direction into place, and the guide rod 29 pops into the first slide track 701.

[0043] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser welding device for a sensor housing, comprising a base (1), a column (2) fixed to the upper end of the base (1), and a welding mechanism (3) mounted on the column (2), Features : The outer side of the column (2) is rotatably connected to a rotary table (4), the rotary table (4) is fixedly provided with a mounting frame (5) distributed in an annular shape, the mounting frame (5) cooperates with the sleeve of the sensor housing parts, the base (1) is fixedly provided with a U-shaped frame (10) through a frame rod (6), the inner side of the U-shaped frame (10) is rotatably connected to a rotating frame (12), a receiving platform (13) cooperating with the sensor housing parts is movably arranged above the base (1), a shaft (15) is rotatably connected to the rotating frame (12), the outer side of the shaft (15) is slidably connected to a sliding sleeve (14) fixed to the receiving platform (13), and a first motor (16) for controlling the rotation of the shaft (15) is installed on the rotating frame (12); Two vertical frames (17) are fixedly arranged on the base (1), and a side extension shaft (18) coaxially fixed with the rotating frame (12) is rotatably connected to the inner side of the vertical frame (17), and a sleeve (24) is slidably sleeved on the outer side of the side extension shaft (18). A driving member for driving the sleeve (24) to slide is arranged on the vertical frame (17), and a guide member and a linkage member are arranged on the outer side of the side extension shaft (18). When the two sleeves (24) slide in opposite directions, the side extension shaft (18) first drives the rotating frame (12) to rotate ninety degrees under the action of the guide member, and then the sliding sleeve (14) drives the receiving platform (13) to approach the mounting frame (5) under the action of the linkage member; The sleeves (24) are provided with transmission members, and when the two sleeves (24) move in opposite directions, the rotary table (4) rotates under the action of the transmission member to switch the loading rack (5) at the welding station, and when the two sleeves (24) move in the opposite direction, the rotary table (4) remains stationary relative to the base (1); The guide member comprises a protrusion (25) fixedly mounted on the inner wall of the sliding sleeve (14); a slide rail (1801) for slidingly cooperating with the protrusion (25) is formed on the side wall of the side extension shaft (18); the slide rail (1801) is composed of a spiral segment and a straight segment; The linkage comprises a slip ring (19) slidably sleeved on the outside of the side extension shaft (18); a rotary arm (22) is rotatably connected between the slip ring (19) and the sliding frame (20); and a compression spring (23) is sleeved on the outside of the side extension shaft (18) for pressing the slip ring (19) outward by abutting against the U-shaped frame (10); The transmission member comprises a turntable (7) rotatably connected to the outside of the frame rod (6), and a component for driving the turntable (7) to rotate. The base (1) is rotatably connected to two shaft wheels (8), one of which is coaxially fixed to the turntable (4), and the other shaft wheel (8) is coaxially fixed to the turntable (7). The outer sides of the two shaft wheels (8) are provided with belts (9) for matching transmission.

2. The laser welding device for a sensor housing according to claim 1, It is characterized in that A bending frame (26) is fixedly provided on the sleeve (24), the driving member comprises a bidirectional screw (27) rotatably connected between the two vertical frames (17), and the bidirectional screw (27) is screwedly connected to the bending frame (26), and a second motor (28) for controlling the rotation of the bidirectional screw (27) is installed at the outer end of the vertical frame (17).

3. The laser welding device for a sensor housing according to claim 1, It is characterized in that A sector plate (11) is fixedly provided on the inner side of the U-shaped frame (10), a sliding frame (20) is fixedly provided on the side end of the sliding sleeve (14) via a support rod (21), a sliding groove (1101) is provided through the sector plate (11) and is adapted to slide with the support rod (21), and the sliding groove (1101) is composed of an arc groove and a straight groove.

4. The laser welding device for a sensor housing according to claim 3, It is characterized in that The component driving the rotating disk (7) to rotate comprises a guide rod (29) slidably connected to the bending frame (26); the guide rod (29) is an umbrella-shaped structure; a baffle (30) is fixedly provided at the inner end of the bending frame (26) and is slidably penetrated by the guide rod (29); a return spring (31) that acts downward on the guide rod (29) is abutted against the bottom of the baffle (30).

5. The laser welding device for a sensor housing according to claim 4, It is characterized in that The rotary disk (7) is formed with a first slideway (701) and a second slideway (702) for cooperating with the guide rod (29) to slide. The first slideway (701) is arranged obliquely along the rotary disk (7), and the second slideway (702) is arranged radially along the rotary disk (7). A step surface for cooperating with the guide rod (29) to bounce off is formed at the intersection of two adjacent second slideways (702) of the first slideway (701), and an end surface of the second slideway (702) for cooperating with the guide rod (29) to slide and fit is formed with a slope surface for pressing the guide rod (29) upwards.

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