Nozzle monitoring mechanism and welding gun assembly

Abstract

The present application provides a nozzle monitoring mechanism and a welding gun assembly, wherein the nozzle monitoring mechanism includes a shell, a positioning column and a camera body that are slidably mounted on the straight part of the gun neck; the shell has two vertical plates, the positioning column is slidably arranged between the two vertical plates, and the positioning column can rotate around its own central axis; the positioning column has a reserved hole, and a locking structure is provided between the positioning column and the vertical plate; the camera body is fixedly inserted in the reserved hole, and a lens connected to the positioning column through a linkage structure is provided between the camera body and the nozzle. The lens can ensure that the camera body can accurately observe the nozzle in use at a close distance, and ensure the observation effect. The welding gun assembly includes the aforementioned nozzle monitoring mechanism, and the beneficial effects of the two are the same. The nozzle monitoring mechanism and welding gun assembly provided by the present application can effectively shorten the distance between the monitoring mechanism and the nozzle, so that the staff can observe the nozzle clearly and accurately.

Description

Technical Field

[0001] The present application belongs to the field of intelligent welding technology, and specifically relates to a nozzle monitoring mechanism and a welding gun assembly. Background Art

[0002] With the rapid development of welding equipment and welding industry, the welding process has been greatly improved, but a large amount of smoke and dust will still be generated during the welding process, which will pollute the air and cause serious harm to the environment and operators. In order to reduce the harm of the gas generated by welding to the operators and facilitate the centralized recovery of smoke and dust, a fully automatic welding system implemented in a confined space is proposed in the prior art.

[0003] Common fully automatic welding systems include a monitoring mechanism for monitoring the nozzle, and the monitoring mechanism usually refers to a camera fixed in a confined space. Workers outside the confined space observe the image information transmitted by the camera to remotely control the direction of the nozzle, the timing and duration of the nozzle activation.

[0004] The inventors found that the existing monitoring mechanism is far away from the nozzle and the clarity of the camera is limited, which makes it difficult for the staff to accurately observe the nozzle; especially when the nozzle is operating, a large number of sparks will be generated on the surface of the welding object, which will further affect the staff's observation. Utility Model Content

[0005] The embodiment of the present application provides a nozzle monitoring mechanism and a welding gun assembly, which are intended to shorten the distance between the monitoring mechanism and the nozzle, so as to enable the staff to observe the nozzle clearly and accurately.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] A nozzle monitoring mechanism is provided, wherein the nozzle is connected to the bent end of a gun neck, the length direction of the straight part of the gun neck is defined as the front-to-back direction, and the bent end is located at the front end of the gun neck and tilted downward; the nozzle monitoring mechanism comprises:

[0008] The housing is slidably mounted on the straight portion of the gun neck in the front-rear direction, and has two vertical plates extending upward and arranged in parallel in the left-right direction on its outer peripheral wall;

[0009] A positioning column is slidably disposed between the two vertical plates in the up-down direction, its axial direction is parallel to the left-right direction, and it is suitable for rotating around its own central axis; the positioning column has a reserved hole penetrating along its radial direction, and a locking structure is provided between the positioning column and the vertical plate; and

[0010] The camera body is fixedly inserted in the reserved hole and is used to be set toward the nozzle; and a lens is provided between the camera body and the nozzle, and the lens is connected to the positioning column through a linkage structure.

[0011] In one possible implementation, each of the vertical plates has a strip hole that penetrates in the left-right direction and extends in the up-down direction; both ends of the positioning column have connecting rod portions that are suitable for being inserted into the strip holes on the same side, and each end of the connecting rod portion that is away from the positioning column has an anti-slip disk that extends radially outward.

[0012] In a possible implementation, the locking structure includes:

[0013] A plurality of positioning holes are provided on the anti-slip disk, and penetrate the anti-slip disk in the left-right direction, and are arranged around the connecting rod at intervals;

[0014] A plurality of alignment holes are provided on the side of the vertical plate facing away from the positioning column, and are arranged at intervals in the vertical direction; wherein any of the alignment holes is suitable for communicating with any of the positioning holes; and

[0015] The stop rod is inserted into the mutually connected positioning hole and the alignment hole to limit the movement of the positioning column in the up and down directions and the rotation around its own central axis.

[0016] In one possible implementation, both ends of the positioning column have multiple sinking grooves corresponding one-to-one to the multiple positioning holes on the same side, and the corresponding positioning holes and the sinking grooves are coaxially arranged so that the stop rod inserted into the positioning hole is suitable for inserting into the sinking groove.

[0017] In a possible implementation, the linkage structure includes:

[0018] Two slots are respectively arranged on the sides of the two anti-slip disks facing away from the positioning column; and

[0019] Two swing arms correspond to the two slots one by one, and the two swing arms are connected by a plurality of connecting plates; each swing arm is arranged on a side facing the corresponding slot, and the swing arm has an insertion rod suitable for being inserted into the slot; and the adjacent sides of the two swing arms each have two clamping parts;

[0020] Wherein, when the insertion rod is inserted into the slot, the outer wall of the insertion rod abuts against the inner wall of the slot to limit the rotation of the swing arm around the insertion rod; and the lens adopts a structure with a quadrilateral cross-section, and the four clamping parts corresponding to the two swing arms are respectively suitable for connecting with the four corner ends of the lens.

[0021] In a possible implementation, the inner wall of the slot has a groove, and the groove passes through the side of the anti-slip disk facing away from the positioning column; the insertion rod has a protrusion extending radially outward and suitable for being inserted into the groove;

[0022] When the insertion rod is inserted into the slot, the protrusion is inserted into the groove, and the outer wall of the protrusion abuts against the inner wall of the groove.

[0023] In a possible implementation, the housing includes:

[0024] A bottom shell is slidably disposed on the straight portion of the gun neck in the front-rear direction and is located at the lower side of the gun neck; and

[0025] The top shell is slidably arranged on the straight part of the gun neck along the front-rear direction, is located on the upper side of the gun neck, and is connected to the bottom shell through a plurality of sets of threaded structures to form a cylindrical structure suitable for slidingly sleeved on the gun neck; and the vertical plate is fixed on the outer side of the top shell.

[0026] In a possible implementation, a plurality of counterweights are fixedly connected to the outer wall of the bottom shell.

[0027] In a possible implementation, an anti-slip sleeve made of elastic material is provided between the shell and the gun neck; wherein the anti-slip sleeve is suitable for being sleeved on the gun neck, and an outer peripheral wall thereof is interference fit with an inner peripheral wall of the shell.

[0028] In the embodiment of the present application, the distance between the camera body and the nozzle can be adjusted by moving the position of the housing; on this basis, the position and orientation of the camera body can be further changed by moving and rotating the positioning column to ensure effective monitoring of the nozzle. At the same time, since there is a lens between the nozzle and the camera body, and the lens moves synchronously with the movement and rotation of the positioning column, the nozzle in use can be effectively monitored.

[0029] Compared with the prior art, the nozzle monitoring mechanism provided in this embodiment can effectively shorten the distance between the monitoring mechanism and the nozzle, adjust the direction of the nozzle, and thus enable the staff to observe the nozzle clearly and accurately.

[0030] The technical solution adopted in the present application also provides a welding gun assembly, including the nozzle monitoring mechanism proposed in any of the above items.

[0031] The beneficial effects of the welding gun assembly provided in this embodiment are the same as the beneficial effects of the aforementioned nozzle monitoring mechanism, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1One of the three-dimensional structural schematic diagrams of the nozzle monitoring mechanism provided in the embodiment of the present application;

[0033] Figure 2 The second schematic diagram of the three-dimensional structure of the nozzle monitoring mechanism provided in the embodiment of the present application;

[0034] Figure 3 for Figure 2 A partial enlarged schematic diagram of the upper circle A;

[0035] Figure 4 This is a schematic diagram of the exploded structure of the shell used in the embodiment of the present application;

[0036] Figure 5 A schematic diagram of the combined structure of the positioning column and the lens used in the embodiment of the present application;

[0037] Figure 6 A schematic diagram of the three-dimensional structure of the swing arm used in the embodiment of the present application;

[0038] Figure 7 A schematic diagram of the three-dimensional structure of a positioning column used in an embodiment of the present application;

[0039] Figure 8 A partially enlarged schematic diagram of a positioning column and a swing arm used in an embodiment of the present application in a cross-sectional perspective;

[0040] Explanation of the accompanying drawings: 1. Shell; 11. Bottom shell; 111. Counterweight; 12. Top shell; 2. Positioning column; 21. Reserved hole; 22. Connecting rod; 23. Anti-slip disk; 24. Sinking groove; 3. Camera body; 4. Vertical plate; 41. Strip hole; 5. Locking structure; 51. Positioning hole; 52. Alignment hole; 53. Stop rod; 6. Lens; 7. Linkage structure; 71. Slot; 711. Groove; 72. Swing arm; 721. Insert rod; 7211. Bump; 722. Clamping part; 723. Connecting plate; 8. Threaded structure; 9. Anti-slip sleeve; 100. Nozzle; 200. Gun neck. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] Please also read Figures 1 to 8 The nozzle monitoring mechanism provided in the present application is now described. The nozzle monitoring mechanism proposed in the present application includes a housing 1, a positioning column 2 and a camera body 3.

[0043] It should be noted that in this embodiment, the aforementioned nozzle 100 is connected to the curved end of the gun neck 200, the length direction of the straight part of the gun neck 200 is defined as the front-to-back direction, and the curved end is at the front end of the gun neck 200 and tilted downward.

[0044] The housing 1 is slidably mounted on the straight portion of the gun neck 200 in the front-rear direction, and has two vertical plates 4 extending upward and arranged in parallel in the left-right direction on its outer peripheral wall, and each vertical plate 4 is fixedly connected to the housing 1 .

[0045] The positioning column 2 is slidably set between the two vertical plates 4 along the up and down direction. It adopts a cylindrical structure, and its axial direction is parallel to the left and right direction. In actual use, this positioning column 2 can move along the up and down direction, and it is suitable for rotating relative to the vertical plate 4 with its own central axis as the axis.

[0046] The positioning column 2 has a reserved hole 21 that penetrates along its radial direction and is compatible with the camera body 3, and there is a locking structure 5 between the positioning column 2 and the vertical plate 4; the positioning column 2 and the vertical plate 4 can be connected through this locking structure 5 to limit the movement and rotation of the positioning column 2 relative to the vertical plate 4.

[0047] The camera body 3 is fixedly inserted into the aforementioned reserved hole 21 ; by adjusting the height and angle of the positioning column 2 , the monitoring end of the camera body 3 can be set toward the working end of the nozzle 100 .

[0048] In this embodiment, there is a lens 6 between the camera body 3 and the nozzle 100. This lens 6 can effectively avoid the influence of welding sparks and is usually made of the same material as welding glasses. The lens 6 is connected to the positioning column 2 through a linkage structure 7; when the positioning column 2 moves and rotates, under the action of this linkage structure 7, the lens 6 can move and swing synchronously.

[0049] In the embodiment of the present application, the distance between the camera body 3 and the nozzle 100 can be adjusted by moving the position of the housing 1; on this basis, the position and orientation of the camera body 3 can be further changed by moving and rotating the positioning column 2 to ensure effective monitoring of the nozzle 100. At the same time, since there is a lens 6 between the nozzle 100 and the camera body 3, and the lens 6 moves synchronously with the movement and rotation of the positioning column 2, the nozzle 100 in use can be effectively monitored.

[0050] Compared with the prior art, the nozzle monitoring mechanism provided in this embodiment can effectively shorten the distance between the monitoring mechanism and the nozzle 100 and adjust the direction of the nozzle 100, thereby enabling the staff to observe the nozzle 100 clearly and accurately.

[0051] In some embodiments, Figure 1 , Figure 4and Figure 5 As shown, each vertical plate 4 has a strip hole 41 that penetrates in the left-right direction and extends in the up-down direction; both ends of the positioning column 2 have a connecting rod portion 22 that is suitable for being inserted into the strip hole 41 on the same side, and each connecting rod portion 22 has an anti-slip disc 23 that extends radially outward at one end facing away from the positioning column 2. The connecting rod portion 22 adopts a circular structure in vertical cross section, so as to enable the positioning column 2 to rotate relative to the vertical plate 4.

[0052] In some embodiments, Figure 3 As shown, the locking structure 5 includes a plurality of positioning holes 51 , a plurality of alignment holes 52 and a stop rod 53 .

[0053] Multiple positioning holes 51 are opened on the anti-slip disk 23, and they all penetrate the anti-slip disk 23 in the left-right direction, and are arranged at intervals along the circumference of the anti-slip disk 23 on the outside of the connecting rod part 22, that is, multiple positioning holes 51 are arranged around the connecting rod part 22.

[0054] The plurality of alignment holes 52 are all formed on the side of the vertical plate 4 facing away from the positioning column 2 , and are spaced apart in the vertical direction; as the positioning column 2 moves and rotates, any alignment hole 52 is suitable for communicating with any positioning hole 51 .

[0055] The stop rod 53 is inserted into the mutually communicating positioning hole 51 and alignment hole 52 to limit the movement of the positioning column 2 in the up-down direction and the rotation around its own central axis.

[0056] In some embodiments, Figure 7 As shown, both ends of the positioning column 2 have multiple sinking grooves 24 corresponding to the multiple positioning holes 51 on the same side, and the corresponding positioning holes 51 and sinking grooves 24 are coaxially arranged so that the stop rod 53 inserted into the positioning hole 51 is suitable for inserting into the sinking groove 24, thereby improving the structural stability of the device.

[0057] In some embodiments, Figure 8 As shown, the linkage structure 7 includes two slots 71 and two swing arms 72 .

[0058] The two slots 71 are respectively arranged on the side surfaces of the two anti-slip disks 23 facing away from the positioning column 2 .

[0059] The two swing arms 72 are connected by a plurality of connecting plates 723, and the two swing arms 72 correspond to the two slots 71 one by one; each swing arm 72 is arranged on the side facing the corresponding slot 71, and the swing arm 72 has an insertion rod 721 suitable for being inserted into the slot 71; the adjacent sides of the two swing arms 72 have two clamping parts 722.

[0060] Among them, when the insertion rod 721 is inserted into the slot 71, the outer wall of the insertion rod 721 abuts against the inner wall of the slot 71 to limit the rotation of the swing arm 72 with the insertion rod 721 as the axis; and, the lens 6 adopts a structure with a quadrilateral cross-section, and the four clamping parts 722 corresponding to the two swing arms 72 are respectively suitable for connecting with the four corner ends of the lens 6 to achieve fixation of the lens 6.

[0061] Specifically, each of the clamping portions 722 has a notch that is open toward the area between the two swing arms 72 and is suitable for the end of the lens 6 to be embedded.

[0062] In some embodiments, Figure 8 As shown, a groove 711 is provided on the inner wall of the slot 71, and the groove 711 passes through the side of the anti-slip disk 23 facing away from the positioning column 2; in this embodiment, the insertion rod 721 has a protrusion 7211 extending radially outward and suitable for being inserted into the groove 711.

[0063] By adopting the above technical solution, when the insertion rod 721 is inserted into the slot 71 , the protrusion 7211 is inserted into the groove 711 , and the outer wall of the protrusion 7211 abuts against the inner wall of the groove 711 to limit the rotation of the insertion rod 721 relative to the slot 71 .

[0064] In some embodiments, Figure 4 As shown, the housing 1 includes a bottom shell 11 and a top shell 12 .

[0065] The bottom shell 11 is slidably disposed on the straight portion of the gun neck 200 along the front-rear direction. The main body of the bottom shell 11 adopts a semicircular ring structure and is located at the lower side of the gun neck 200 .

[0066] The top shell 12 is slidably disposed on the straight portion of the gun neck 200 along the front-back direction, and its main body also adopts a semicircular ring structure, and is located on the upper side of the gun neck 200, and is connected to the bottom shell 11 through a plurality of sets of thread structures 8 to form a cylindrical structure suitable for slidingly sleeved on the gun neck 200. In addition, the aforementioned vertical plate 4 is fixed on the outer wall of the top shell 12.

[0067] Specifically, both the bottom shell 11 and the top shell 12 have a flat plate structure extending outward, and the flat plate structure has a through hole that penetrates in the up and down directions, and the two through holes corresponding to the bottom shell 11 and the top shell 12 are suitable for being connected to each other for the bolt to pass through; and, the protruding end of the bolt is threadedly connected to a nut, and the nut cooperates with the head of the bolt to clamp the two flat plate structures and limit the relative movement between the bottom shell 11 and the top shell 12.

[0068] In some embodiments, Figure 4As shown, a plurality of counterweight blocks 111 are fixedly connected to the outer wall of the bottom shell 11; when there is one counterweight block 111, this counterweight block 111 is fixed at the center of the outer side surface of the bottom shell 11; when there are multiple counterweight blocks 111, the multiple counterweight blocks 111 are in two groups, and the two groups of counterweight blocks 111 are symmetrically arranged with the vertical section where the central axis of the bottom shell 11 is located as the symmetry plane.

[0069] By adopting the above technical solution, the counterweight 111 can drive the bottom shell 11 to rotate with the gun neck 200 as the rotation axis, thereby ensuring that the bottom shell 11 is located at the lower side of the top shell 12 and the camera body 3 is located at the upper side of the gun neck 200 .

[0070] In some embodiments, Figure 1 and Figure 4 As shown, there is an anti-slip cover 9 made of elastic material between the shell 1 and the gun neck 200; wherein, the anti-slip cover 9 is suitable for being placed on the gun neck 200, and its outer peripheral wall is interference fit with the inner peripheral wall of the shell 1 to limit the translational movement of the shell 1 relative to the gun neck 200 under non-human force, thereby improving the structural stability of the device.

[0071] Based on the same inventive concept, an embodiment of the present application further provides a welding gun assembly, comprising the nozzle monitoring mechanism proposed in any of the aforementioned items.

[0072] The beneficial effects of the welding gun assembly provided in this embodiment are the same as the beneficial effects of the aforementioned nozzle monitoring mechanism, and will not be repeated here.

[0073] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A nozzle monitoring mechanism, wherein the nozzle is connected to the curved end of the gun neck, the length direction of the straight part of the gun neck is defined as the front-to-back direction, and the curved end is located at the front end of the gun neck and tilted downward; characterized in that: The nozzle monitoring mechanism comprises: The housing is slidably mounted on the straight portion of the gun neck in the front-rear direction, and has two vertical plates extending upward and arranged in parallel in the left-right direction on its outer peripheral wall; A positioning column is slidably disposed between the two vertical plates in the up-down direction, its axial direction is parallel to the left-right direction, and it is suitable for rotating around its own central axis; the positioning column has a reserved hole penetrating along its radial direction, and a locking structure is provided between the positioning column and the vertical plate; and The camera body is fixedly inserted in the reserved hole and is used to be set toward the nozzle; and a lens is provided between the camera body and the nozzle, and the lens is connected to the positioning column through a linkage structure.

2. The nozzle monitoring mechanism according to claim 1, characterized in that: Each of the vertical plates has a strip hole that penetrates in the left-right direction and extends in the up-down direction; both ends of the positioning column have connecting rod parts that are suitable for being inserted into the strip holes on the same side, and each end of the connecting rod part that is away from the positioning column has an anti-slip disk that extends radially outward.

3. The nozzle monitoring mechanism according to claim 2, characterized in that: The locking structure comprises: A plurality of positioning holes are provided on the anti-slip disk, and penetrate the anti-slip disk in the left-right direction, and are arranged around the connecting rod at intervals; A plurality of alignment holes are provided on the side of the vertical plate facing away from the positioning column, and are arranged at intervals in the vertical direction; wherein any of the alignment holes is suitable for communicating with any of the positioning holes; and The stop rod is inserted into the mutually connected positioning hole and the alignment hole to limit the movement of the positioning column in the up and down directions and the rotation around its own central axis.

4. The nozzle monitoring mechanism according to claim 3, characterized in that: Both ends of the positioning column have a plurality of sinking grooves corresponding one to one with the plurality of positioning holes on the same side, and the corresponding positioning holes and the sinking grooves are coaxially arranged so that the stop rod inserted into the positioning hole is suitable for being inserted into the sinking groove.

5. The nozzle monitoring mechanism according to claim 2, characterized in that: The linkage structure includes: Two slots are respectively arranged on the sides of the two anti-slip disks facing away from the positioning column; and Two swing arms correspond to the two slots one by one, and the two swing arms are connected by a plurality of connecting plates; each swing arm is arranged on a side facing the corresponding slot, and the swing arm has an insertion rod suitable for being inserted into the slot; and the adjacent sides of the two swing arms each have two clamping parts; Wherein, when the insertion rod is inserted into the slot, the outer wall of the insertion rod abuts against the inner wall of the slot to limit the rotation of the swing arm around the insertion rod; and the lens adopts a structure with a quadrilateral cross-section, and the four clamping parts corresponding to the two swing arms are respectively suitable for connecting with the four corner ends of the lens.

6. The nozzle monitoring mechanism according to claim 5, characterized in that: The inner wall of the slot is provided with a groove, and the groove passes through the side of the anti-slip disk facing away from the positioning column; the insertion rod is provided with a protrusion extending radially outward and suitable for being inserted into the groove; When the insertion rod is inserted into the slot, the protrusion is inserted into the groove, and the outer wall of the protrusion abuts against the inner wall of the groove.

7. The nozzle monitoring mechanism according to claim 1, characterized in that: The housing comprises: A bottom shell is slidably disposed on the straight portion of the gun neck in the front-rear direction and is located at the lower side of the gun neck; and The top shell is slidably arranged on the straight part of the gun neck along the front-rear direction, is located on the upper side of the gun neck, and is connected to the bottom shell through a plurality of sets of threaded structures to form a cylindrical structure suitable for slidingly sleeved on the gun neck; and the vertical plate is fixed on the outer side of the top shell.

8. The nozzle monitoring mechanism according to claim 7, characterized in that: A plurality of counterweight blocks are fixedly connected to the outer wall of the bottom shell.

9. The nozzle monitoring mechanism according to any one of claims 1 to 8, characterized in that: An anti-slip sleeve made of elastic material is arranged between the shell and the gun neck; wherein the anti-slip sleeve is suitable for being sleeved on the gun neck, and the outer peripheral wall thereof is interference-fitted with the inner peripheral wall of the shell.

10. A welding gun assembly, characterized in that: The nozzle monitoring mechanism comprises the nozzle monitoring mechanism described in any one of claims 1 to 9.

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