Weld joint mechanical tracking device for mechanical part welding

Abstract

The invention discloses a mechanical welding seam tracking device for mechanical part welding, relates to the technical field of automatic welding, and provides the following technical scheme for achieving the purpose that the mechanical welding seam tracking device for mechanical part welding comprises a movable seat arranged on a cantilever mechanism and further comprises a transmission shaft arranged on the movable seat; the connecting seat is arranged at the lower part of the transmission shaft; the welding part is fixed on the connecting seat, and the tank body and the reinforcing ring are welded through the welding part; the image acquisition system is mounted on the connecting seat and is used for acquiring an image picture of the welding part in real time; the cleaning mechanism is arranged on the welding part and comprises a cleaning brush, a driving part and a transmission part, in the welding process, the cleaning brush is passively driven to rotate in a clearance mode through rotation of the tank body, and the influence of the cleaning brush on collected images is minimized and reduced while the image collecting system is cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of automated welding, in particular to a weld seam mechanical tracking device for welding mechanical parts. Background Art

[0002] The tank container needs to be welded with a reinforcement ring. The reinforcement ring is generally a ring structure and is installed on the outside or inside of the tank to enhance the strength and stability of the tank and prevent the tank from deformation or rupture. When welding a tank with a large depth, automatic welding equipment is generally used. Automated welding equipment includes core parts such as cantilever system, welding system, tracking system and human-computer interaction system. During the welding process, the image acquisition device in the tracking system collects welding images in real time and transmits them to the human-computer interaction system for the staff to monitor the welding status in real time. Smoke will be generated during continuous welding. The components of welding fumes usually include metal oxides, ozone, carbon monoxide, etc. Most of these will be collected and filtered by the dust removal system and discharged into the atmosphere, but some will escape. Since the image acquisition device is always aimed at the welding gun, the escaped smoke will pollute the image acquisition device. Summary of the invention

[0003] The purpose of the present invention is to provide a weld seam mechanical tracking device for mechanical parts welding to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a weld seam mechanical tracking device for mechanical parts welding, comprising a movable seat arranged on a cantilever mechanism, and also comprising: A transmission shaft is arranged on the movable seat; A connecting seat installed at the lower part of the transmission shaft; A welding part fixed on the connecting seat, through which the tank body and the reinforcing ring are welded; An image acquisition system installed on the connection base, which is used to acquire images of the welding part in real time; A cleaning mechanism is arranged on the welding part, and comprises a cleaning brush, a driving part and a transmission part, wherein the driving part and the reinforcing ring are connected to each other through the transmission part; During the welding process, the reinforcing ring rotates so that the driving part drives the cleaning brush to intermittently clean the collection welding part.

[0005] Preferably, it comprises a column, and the column is fixed on the connecting seat.

[0006] Preferably, the transmission part comprises a central shaft and a contact roller, wherein the central shaft is rotatably connected to the bottom of the column, and the contact roller is fixedly sleeved on the outside of the central shaft.

[0007] Preferably, the driving part includes a driving gear, a driven gear, a torsion spring, a rotating seat, and a rotation delay member, the driving gear is fixedly mounted on the central axis, the driven gear is rotatably connected to the outside of the column, the rotating seat is rotatably connected to the column, the cleaning brush is mounted on the rotating seat, the rotating seat and the driven gear are connected by a torsion spring, and the rotation delay member is used to hinder the continuous rotation of the rotating seat.

[0008] Preferably, the rotating member includes a fixed seat, a telescopic column, a ball, and an elastic member. The rotating seat is provided with a concave hole, the fixed seat is fixedly installed on the upper part of the column, the telescopic column is slidably inserted on the fixed seat, the ball is rotatably connected to the lower part of the telescopic column, and the elastic member is movably sleeved on the outside of the telescopic column.

[0009] Preferably, the lower end of the torsion spring is fixedly mounted on the upper portion of the passive gear, and the upper end of the torsion spring is fixed on the lower portion of the rotating seat.

[0010] Preferably, the upper portion of the column is configured to be rectangular, and the position of the column relative to the connecting seat is adjustable.

[0011] Preferably, a flip motor is included, which is used to drive the transmission shaft to rotate 180 degrees.

[0012] Preferably, the cantilever mechanism can drive the movable seat to move in the horizontal direction and the vertical direction.

[0013] In the above technical scheme, the present invention provides a weld mechanical tracking device for mechanical parts welding. During the welding process, the rotation of the tank body is used to passively drive the cleaning brush to rotate intermittently, thereby minimizing the impact of the cleaning brush on the captured image while cleaning the image acquisition system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is an overall schematic diagram of a weld seam mechanical tracking device for mechanical parts welding of the present invention; Figure 2 It is a partial structural schematic diagram of a weld seam mechanical tracking device for mechanical parts welding of the present invention; Figure 3 A schematic diagram of a cleaning mechanism of a weld seam mechanical tracking device for mechanical parts welding according to the present invention; Figure 4It is a structural schematic diagram of a cleaning brush of a weld seam mechanical tracking device for mechanical parts welding according to the present invention when it rotates; Figure 5 A side view of a weld seam mechanical tracking device for mechanical parts welding according to the present invention; Figure 6 It is a front cross-sectional view of a weld seam mechanical tracking device for mechanical parts welding of the present invention; Figure 7 It is a structural schematic diagram of a welding part and a cleaning part of a weld seam mechanical tracking device for mechanical parts welding according to the present invention; Figure 8 The invention is an attachment of a weld seam mechanical tracking device for mechanical parts welding. Figure 7 A in the middle is an enlarged schematic diagram.

[0016] Explanation of the reference numerals in the accompanying drawings: 1. cantilever mechanism; 3. movable seat; 4. transmission shaft; 5. flip motor; 6. connecting seat; 7. welding part; 8. image acquisition system; 9. cleaning mechanism; 91. column; 92. transmission part; 921. central axis; 922. contact roller; 93. driving part; 930. cleaning brush; 931. driving gear; 932. driven gear; 934. torsion spring; 935. rotating seat; 9351. recessed hole; 936. fixed seat; 937. telescopic column; 938. ball bearing; 939. elastic member; 10. tank body; 11. reinforcement ring. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] See also Figure 1-8 The embodiment of the present invention provides a weld seam mechanical tracking device for mechanical parts welding, comprising a movable seat 3 arranged on a cantilever mechanism 1, and further comprising: A transmission shaft 4 is arranged on the movable seat 3; A connecting seat 6 mounted at the lower part of the transmission shaft 4; A welding portion 7 fixed on the connecting seat 6, through which the tank body 10 and the reinforcement ring 11 are welded; An image acquisition system 8 installed on the connection base 6 is used to acquire images of the welding part 7 in real time; The cleaning mechanism 9 is arranged on the welding part 7, and comprises a cleaning brush 930, a driving part 93 and a transmission part 92, and the driving part 93 and the reinforcing ring 11 are connected to each other through the transmission part 92; During the welding process, the reinforcing ring 11 rotates, so that the driving part 93 drives the cleaning brush 930 to intermittently clean the collection welding part 7.

[0019] In the embodiment of the present invention, the invention is applicable to welding the tank reinforcement ring, wherein the cantilever mechanism 1 is an existing device, and its function is to drive the movable seat 3 to move in the vertical direction and the horizontal direction. Therefore, the specific structure of the cantilever mechanism 1 as a known technology is not drawn in the attached drawings, and will not be described in detail here; The image acquisition system 8 is a well-known technology, and its purpose is to collect image data and transmit it to the display, and its working principle will not be described in detail here; During the welding process, the tank body 10 will rotate under the action of an external driving source. The tank body 10 is generally supported and transported by an AGV trolley. The AGV trolley is provided with a corresponding driving source to drive the tank body 10 to rotate. This technology is a well-known technology and is not drawn in the drawings, so it will not be described here. Before welding, the image acquisition system 8 acquires the position of the welding part 7 in real time, and the operator adjusts the position of the welding part 7 in real time so that the welding gun of the welding part 7 is aligned with the contact position of the tank body 10 and the reinforcement ring 11, which is the welding position. After the gun is aligned, the tank body 10 is rotated, and the welding gun welds the tank body 10 and the reinforcement ring 11 in real time; During the welding process, a large amount of smoke and dust will be generated, and part of the smoke and dust will adhere to the lens of the image acquisition system 8, causing the image captured by the image acquisition system 8 to be blurred. The driving part 93 and the reinforcing ring 11 are connected in transmission. Through the rotation of the reinforcing ring 11, the driving part 93 will synchronously drive the cleaning brush 930 to rotate. The cleaning brush 930 can clean the attachments on the lens to ensure that the image captured by the lens is clear, and under the transmission action of the driving part 93, the cleaning brush 930 does not rotate all the time, but is cleaned intermittently. In this way, during the welding process, the residence time of the cleaning brush in front of the lens is greatly reduced. While cleaning the image acquisition system 8, the impact of the cleaning brush 930 on the captured image is minimized, and the cleaning brush 930 will not block the lens when welding is completed at any time.

[0020] In the embodiments of the present invention, please refer to Figure 2 , including a column 91, the column 91 is fixed on the connecting seat 6. The upper part of the column 91 is set in a rectangular shape, and the position of the column 91 relative to the connecting seat 6 is adjustable.

[0021] The column 91 is fixed to the connection seat 6 by bolts, and the upper part of the column 91 is set to a rectangle to ensure that the column 91 can only change its height in the vertical direction. The height of the column 91 can be adjusted manually; In the embodiments of the present invention, please refer to Figure 2 , Figure 3The transmission part 92 includes a central shaft 921 and a contact roller 922 . The central shaft 921 is rotatably connected to the bottom of the column 91 , and the contact roller 922 is fixedly sleeved on the outside of the central shaft 921 .

[0022] The area where the contact roller 922 contacts the reinforcement ring 11 is made of nylon. When the reinforcement ring 11 rotates, the contact roller 922 and the reinforcement ring 11 are rollingly connected. Therefore, during the welding process, the contact roller 922 will rotate synchronously with the reinforcement ring 11.

[0023] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 4 The driving part 93 includes a driving gear 931, a driven gear 932, a torsion spring 934, a rotating seat 935, and a rotation delay member. The driving gear 931 is fixedly mounted on the central shaft 921, the driven gear 932 is rotatably connected to the outside of the column 91, the rotating seat 935 is rotatably connected to the column 91, the cleaning brush 930 is mounted on the rotating seat 935, the rotating seat 935 and the driven gear 932 are connected by a torsion spring 934, and the rotation delay member is used to hinder the continuous rotation of the rotating seat 935.

[0024] When the contact roller 922 rotates, it will synchronously drive the active gear 931 to rotate. The active gear 931 and the passive gear 932 are meshed, and the passive gear 932 is rotatably connected to the lower part of the column 91. Therefore, the passive gear 932 will rotate synchronously. When the passive gear 932 rotates, it will twist the torsion spring 934. When the torsion spring 934 is twisted, it will generate a torque on the rotating seat 935. However, due to the setting of the delay member, the rotating seat 935 does not rotate. As the passive gear 932 continues to rotate, the rotating seat 935 will overcome the resistance of the delay member and rotate rapidly. During the rotation of the rotating seat 935, the cleaning brush 930 will clean the image acquisition system 8.

[0025] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 4 The rotating part includes a fixed seat 936, a telescopic column 937, a ball 938, and an elastic member 939. A recessed hole 9351 is provided on the rotating seat 935. The fixed seat 936 is fixedly installed on the upper part of the column 91. The telescopic column 937 is slidably inserted on the fixed seat 936. The ball 938 is rotatably connected to the lower part of the telescopic column 937. The elastic member 939 is movably sleeved on the outside of the telescopic column 937.

[0026] Under the pressure of the elastic member 939, the ball 938 will be embedded in the recessed hole 9351, and the rotation of the rotating seat 935 will be limited by the ball 938. As the torque applied by the torsion spring 934 to the rotating seat 935 continues to increase, the ball 938 will be squeezed by the recessed hole 9351 and will overcome the elastic force of the elastic member 939 to move upward, so that the ball 938 will be separated from the recessed hole 9351, and the rotating seat 935 will rotate rapidly. In this way, during the welding process, the cleaning brush 930 can intermittently clean the image acquisition system 8, and each time the cleaning is carried out, the cleaning brush quickly passes in front of the lens of the image acquisition system 8, which greatly reduces the residence time of the cleaning brush in front of the lens. While cleaning the image acquisition system, the impact of the cleaning brush 930 on the acquisition screen is minimized.

[0027] In the embodiments of the present invention, please refer to Figure 3 The lower end of the torsion spring 934 is fixedly mounted on the upper part of the passive gear 932, and the upper end of the torsion spring 934 is fixed on the lower part of the rotating seat 935. The torsion spring 934 can realize the connection between the rotating seat 935 and the passive gear 932 to realize the rotation of the two.

[0028] In the embodiments of the present invention, please refer to Figure 5 , Figure 6 , Figure 7 as well as Figure 8 , including a flip motor 5, which is used to drive the transmission shaft 4 to rotate 180 degrees. The cantilever mechanism 1 can drive the movable seat 3 to move in the horizontal direction and the vertical direction.

[0029] The setting of the flip motor 5 can be used to change the position of the welding part 7. The extension line of the transmission shaft 4 coincides with the center of the reinforcement ring 11. After the single-sided welding of the reinforcement ring 11 is completed, the movable seat 3 is controlled to move up X through the cantilever mechanism 1, and then the transmission shaft 4 is controlled to flip 180 degrees through the flip motor 5, and then the movable seat 3 is controlled to move down X. In this way, the welding part 7 is realigned with the welding position on the other side, so that the welding part 7 is quickly aligned with the gun.

[0030] In another embodiment of the present invention, see Figure 7 and Figure 8 ,exist Figure 8 In the figure, one side of the driving gear 931 is in contact with the side of the reinforcing ring 11, so that the driving gear 931 and the contact roller 922 cooperate with each other to assist in positioning the reinforcing ring 11 during the welding process. In the initial stage of welding, when the welding is not strong enough, the driving gear 931 and the contact roller 922 are squeezed and positioned to stably fix the reinforcing ring 11 to the inner wall of the tank body 10, thereby further improving the welding quality.

[0031] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A weld seam mechanical tracking device for welding mechanical parts, comprising a movable seat (3) arranged on a cantilever mechanism (1), characterized in that: Also includes: A transmission shaft (4) is arranged on the movable seat (3); A connecting seat (6) mounted on the lower part of the transmission shaft (4); A welding portion (7) fixed on the connecting seat (6), wherein the tank body (10) and the reinforcing ring (11) are welded via the welding portion (7); An image acquisition system (8) mounted on the connection base (6), which is used to acquire an image of the welding portion (7) in real time; A cleaning mechanism (9) is arranged on the welding portion (7), comprising a cleaning brush (930), a driving portion (93) and a transmission portion (92), wherein the driving portion (93) and the reinforcing ring (11) are in transmission connection via the transmission portion (92); During the welding process, the reinforcing ring (11) rotates, so that the driving part (93) drives the cleaning brush (930) to intermittently clean the collection welding part (7).

2. A weld seam mechanical tracking device for mechanical parts welding according to claim 1, characterized in that: It comprises a column (91), wherein the column (91) is fixed on the connecting seat (6).

3. A weld seam mechanical tracking device for mechanical parts welding according to claim 2, characterized in that: The transmission part (92) comprises a central shaft (921) and a contact roller (922); the central shaft (921) is rotatably connected to the bottom of the column (91); and the contact roller (922) is fixedly sleeved on the outside of the central shaft (921).

4. A weld seam mechanical tracking device for mechanical parts welding according to claim 3, characterized in that: The driving part (93) comprises a driving gear (931), a driven gear (932), a torsion spring (934), a rotating seat (935), and a rotation delay member. The driving gear (931) is fixedly mounted on the central shaft (921), the driven gear (932) is rotationally connected to the outside of the column (91), the rotating seat (935) is rotationally connected to the column (91), the cleaning brush (930) is mounted on the rotating seat (935), the rotating seat (935) and the driven gear (932) are connected via a torsion spring (934), and the rotation delay member is used to prevent the rotating seat (935) from continuously rotating.

5. A weld seam mechanical tracking device for mechanical parts welding according to claim 4, characterized in that: The rotation extension member comprises a fixed seat (936), a telescopic column (937), a ball bearing (938), and an elastic member (939); a concave hole (9351) is provided on the rotating seat (935); the fixed seat (936) is fixedly mounted on the upper part of the column (91); the telescopic column (937) is slidably plugged into the fixed seat (936); the ball bearing (938) is rotatably connected to the lower part of the telescopic column (937); and the elastic member (939) is movably sleeved on the outside of the telescopic column (937).

6. A weld seam mechanical tracking device for mechanical parts welding according to claim 5, characterized in that: The lower end of the torsion spring (934) is fixedly mounted on the upper part of the driven gear (932), and the upper end of the torsion spring (934) is fixed on the lower part of the rotating seat (935).

7. A weld seam mechanical tracking device for mechanical parts welding according to claim 2, characterized in that: The upper portion of the column (91) is arranged in a rectangular shape, and the position of the column (91) relative to the connecting seat (6) is adjustable.

8. A weld seam mechanical tracking device for mechanical parts welding according to claim 1, characterized in that: It comprises a turning motor (5) which is used to drive the transmission shaft (4) to rotate 180 degrees.

9. A weld seam mechanical tracking device for mechanical parts welding according to claim 1, characterized in that: The cantilever mechanism (1) can drive the movable seat (3) to move in the horizontal direction and the vertical direction.

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