Annular welding piece locking device

Abstract

The invention provides an annular welding part locking device. The annular welding part locking device comprises a reference cylinder; the locking mechanism comprises a positioning part, a guiding part and a first pressing part, the guiding part comprises a base and a guiding structure, the guiding structure is arranged on the base, the base can be arranged on the positioning part in the mode of moving in the radial direction of the reference cylinder, the base abuts against one side wall of the to-be-welded circular ring, and one side of the guiding structure is matched with the inner wall of the to-be-welded circular ring in a limiting mode; the first pressing part is arranged on the positioning part, and the first pressing part abuts against the other side wall of the to-be-welded circular ring; the number of the locking mechanisms is multiple, and the multiple locking mechanisms are distributed in the circumferential direction of the reference cylinder at intervals. By means of the technical scheme, the problems that in the prior art, an annular welding part locking device is complex in structure and difficult to adjust can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a locking device for an annular welding piece. Background Art

[0002] At present, the locking device of the annular welded parts in the prior art has a complex structure and unreliable locking, and is unable to meet the requirements of centering and aligning of large annular welded parts. Furthermore, due to the use of linkage adjustment and clamping, when there is an error in the cylindricity of the circular ring, it cannot be locked well, resulting in uneven force on the load-bearing parts of the locking device, affecting its service life. Among them, when the diameter of the annular welded part is very large, the linkage parts of the locking device will become very complicated and difficult to adjust. Summary of the invention

[0003] The present invention provides a locking device for an annular welding part, so as to at least solve the problems of complex structure and difficult adjustment of the locking device for annular welding part in the prior art.

[0004] In order to solve the above problems, the present invention provides a locking device for an annular welding part, comprising: a reference cylinder; a locking mechanism, the locking mechanism comprising a positioning part, a guide part and a first pressing part, the guide part comprising a base and a guide structure, the guide structure is arranged on the base, the base can be arranged on the positioning part radially movably along the reference cylinder, the base abuts against a side wall of the ring to be welded, and one side of the guide structure is limitedly matched with the inner wall of the ring to be welded; the first pressing part is arranged on the positioning part, and the first pressing part abuts against the other side wall of the ring to be welded; wherein, there are multiple locking mechanisms, and the multiple locking mechanisms are distributed at intervals along the circumference of the reference cylinder.

[0005] Furthermore, the guide structure includes a guide frame and a plurality of rolling elements. The guide frame is fixedly connected to the base. The plurality of rolling elements are arranged on the guide frame at intervals along the axial direction of the reference cylinder. The rolling elements abut against the inner wall of the ring to be welded.

[0006] Furthermore, the axis of the rolling element is perpendicular to the axis of the circular ring to be welded, and the surface of the rolling element is an arc surface, which fits the arc surface of the inner wall of the circular ring to be welded.

[0007] Furthermore, the guide frame includes a main board body, a first curved plate body, a second curved plate body and a connecting plate. The main board body is fixedly connected to the base, the first curved plate body and the second curved plate body are both connected to the main board body, the first curved plate body and the second curved plate body are spaced apart, the inclination directions of the first curved plate body and the second curved plate body are both toward the reference cylinder, the two ends of the rolling element are respectively rotatably connected to the first curved plate body and the second curved plate body, and the main board body, the first curved plate body and the second curved plate body are all connected to the connecting plate.

[0008] Furthermore, the positioning part includes a first reference member and a first fixed member connected to the reference cylinder, the base includes a fixed block, a guide slider and a first driving screw, one end of the fixed block is connected to the first reference member, one end of the guide slider is slidably matched with the other end of the fixed block, the other end of the guide slider is connected to the guide structure, the first driving screw is located in the fixed block, the first driving screw is drivingly connected to the guide slider, and the first driving screw is rotatably arranged to drive the guide slider to move radially along the reference cylinder.

[0009] Furthermore, the positioning part includes a second reference part connected to the reference cylinder, and the annular welding part locking device also includes a bearing part, which is located on the second reference part and supports the guide structure away from the side of the circular ring to be welded.

[0010] Furthermore, the bearing part includes a bearing seat and a bearing slider, the guide structure has an inclined surface, one end of the bearing seat is connected to the second reference member, one end of the bearing slider is slidingly matched with the other end of the bearing seat, the other end of the bearing slider is abutted against the inclined surface, and the bearing slider can be movably arranged along the axial direction of the reference cylinder to bear the force exerted on the guiding structure.

[0011] Furthermore, the bearing slider includes a main block body and an inclined block, and the bearing part also includes a second driving screw rod. One end of the main block body is slidingly matched with the other end of the bearing seat, the other end of the main block body is connected to the inclined block, the inclined block and the inclined surface are abutted, the second driving screw rod is located in the bearing seat, the second driving screw rod is drivingly connected to the bearing slider, and the second driving screw rod is rotatably arranged to drive the bearing slider to move axially along the reference cylinder.

[0012] Furthermore, the positioning part includes a first reference part and a first fixing part connected to the reference cylinder, and the first clamping part includes a connecting assembly, a sleeve and a pressure block. The two ends of the connecting assembly are respectively detachably connected to the first reference part and the first fixing part. The pressure block is rotatably mounted on the connecting assembly. The sleeve is mounted on the connecting assembly and abuts against one end of the pressure block. The other end of the pressure block abuts against the other side wall of the ring to be welded. The position of the sleeve on the connecting assembly is adjustable to adjust the position of the pressure block.

[0013] Furthermore, the positioning part also includes a second reference member connected to the reference cylinder, the connecting assembly includes a first positioning column, a connecting column and a second positioning column connected in sequence, the first clamping part also includes a first fastener, a second fastener and an adjusting member, the diameter of the connecting column is larger than the diameter of the first positioning column and the diameter of the second positioning column, the first positioning column is connected to the first fixing member through the first fastener, the second positioning column is connected to the second reference member through the second fastener, the pressure block is sleeved on the connecting column, the sleeve is sleeved on the connecting column, and the position of the sleeve on the connecting column is adjusted by the adjusting member.

[0014] Furthermore, the first fixing member has a first wedge-shaped groove, the second reference member has a second wedge-shaped groove, the connecting column has a limiting surface, the limiting surface and one end of the first fixing member facing the second reference member abut against each other, the first positioning column and the second positioning column both have wedge-shaped positioning surfaces, the first positioning column is inserted into the first wedge-shaped groove, the wedge-shaped positioning surface of the first positioning column abuts against the inner wall of the first wedge-shaped groove, the second positioning column is inserted into the second wedge-shaped groove, the wedge-shaped positioning surface of the second positioning column abuts against the inner wall of the second wedge-shaped groove.

[0015] Furthermore, the positioning portion includes a first reference member, a first fixing member, a second fixing member and a third fixing member arranged on the reference cylinder, and the annular welding member locking device also includes a spacer portion and a second clamping portion. The second fixing member and the third fixing member are arranged side by side with the first fixing member, and the second fixing member is located between the first fixing member and the third fixing member. The spacer portion is rotatably arranged on the guide portion, and the two ends of the spacer portion are respectively abutted against the side walls of the two circular rings to be welded, and the two ends of the second clamping portion are respectively detachably connected to the second fixing member and the third fixing member, and the second clamping portion is used to abut against the side wall of the circular ring to be welded away from the spacer portion.

[0016] Furthermore, the spacing part includes a spacing seat and a spacing plate, the spacing seat is connected to the guide structure, the spacing plate is rotatably arranged on the spacing seat, and the spacing plate is used to abut against the side wall of the circular ring to be welded.

[0017] Furthermore, the reference cylinder includes a central cylinder, an outer cylinder and a reinforcing assembly. The central cylinder is located in the cavity of the outer cylinder. The central cylinder is connected to the outer cylinder through the reinforcing assembly. The positioning portion is connected to the outer wall of the outer cylinder.

[0018] Furthermore, the annular welding part locking device also includes at least one adjusting gasket, the base has a groove, the adjusting gasket is located in the groove, the adjusting gasket abuts against a side wall of the circular ring to be welded, and the adjusting gasket is used to adjust the position of the circular ring to be welded.

[0019] By applying the technical solution of the present invention, a locking device for an annular welding part is provided, comprising: a reference cylinder; a locking mechanism, the locking mechanism comprising a positioning portion, a guide portion and a first pressing portion, the guide portion comprising a base and a guide structure, the guide structure is arranged on the base, the base can be arranged on the positioning portion radially movably along the reference cylinder, the base abuts against a side wall of the circular ring to be welded, one side of the guide structure is limitedly matched with the inner wall of the circular ring to be welded; one end of the first pressing portion is arranged on the first reference part, the first pressing portion is arranged on the positioning portion, the first pressing portion abuts against the other side wall of the circular ring to be welded; wherein, there are multiple locking mechanisms, and the multiple locking mechanisms are spaced apart along the circumference of the reference cylinder. With this solution, a guide structure is provided, which can play a guiding role when installing the circular ring to be welded, so that the circular ring to be welded can be abutted with the base more quickly; a positioning part is provided, and when one side wall of the circular ring to be welded abuts with the base, the positioning part can play a role of positioning and reference, and at the same time, the base can be arranged on the positioning part to be movable along the radial direction of the reference cylinder, so that it can adapt to circular rings of different sizes to be welded; the first clamping part is arranged on the positioning part, so that it can abut with the other side wall of the circular ring to be welded, thereby clamping the circular ring to be welded. In this solution, a plurality of locking mechanisms are distributed at intervals along the circumference of the reference cylinder, so that the stability and reliability of the circular part during welding can be ensured. With the annular welding part locking device in this solution, the positioning part, the guide part and the first clamping part are all arranged on the reference cylinder, which has a simple structure and is easy to adjust, and effectively solves the problem of complex structure and difficult adjustment of the annular welding part locking device in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic structural diagram of a ring-shaped welding piece locking device provided by an embodiment of the present invention is shown;

[0022] Figure 2 Shows Figure 1 A partial enlarged view of the locking device of the middle annular weldment;

[0023] Figure 3 Shows Figure 1 A schematic diagram of the partial structure of the locking device of the middle annular weldment;

[0024] Figure 4 Shows Figure 1 A schematic diagram of the structure of the middle guide portion, the bearing portion, the first pressing portion and the second pressing portion;

[0025] Figure 5 Shows Figure 4A schematic diagram of the structure of the middle guide portion, the bearing portion, the first pressing portion and the second pressing portion at another angle;

[0026] Figure 6 Shows Figure 1 A schematic diagram of the structure of the middle guide part, the spacing part and the bearing part;

[0027] Figure 7 Shows Figure 1 A schematic structural diagram of the first pressing part;

[0028] Figure 8 Shows Figure 7 Schematic diagram of the structure of the connected components.

[0029] The above drawings include the following reference numerals:

[0030] 10. Reference cylinder; 11. Center cylinder; 12. Outer cylinder; 13. Reinforcement assembly; 131. Edge reinforcement; 132. Middle reinforcement;

[0031] 20. Positioning part; 21. First reference member; 22. Second reference member; 221. Second wedge-shaped groove; 23. First fixing member; 231. First wedge-shaped groove; 24. Second fixing member; 25. Third fixing member;

[0032] 30. Guide portion; 31. Base; 311. Fixed block; 312. Guide slider; 313. First drive screw rod; 32. Guide structure; 321. Guide frame; 3211. Main plate; 3212. First arc plate; 3213. Second arc plate; 3214. Connecting plate; 322. Rolling element;

[0033] 40, bearing part; 41, bearing seat; 42, bearing slider; 421, main block; 422, inclined block; 43, second driving screw rod;

[0034] 50, first clamping part; 51, connecting assembly; 511, first positioning column; 5111, wedge-shaped positioning surface; 512, connecting column; 5121, limiting surface; 513, second positioning column; 52, sleeve; 53, pressing block; 54, first fastener; 55, second fastener; 56, adjusting member;

[0035] 60, spacer; 61, spacer seat; 611, first seat body; 612, second seat body; 613, fixed shaft; 62, spacer plate;

[0036] 70. second pressing portion;

[0037] 80. Ring to be welded;

[0038] 90. Adjust the gasket. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0040] like Figures 1 to 8 As shown, an embodiment of the present invention provides a locking device for an annular weldment, comprising: a reference cylinder 10; a locking mechanism, the locking mechanism comprising a positioning portion 20, a guide portion 30 and a first clamping portion 50, the guide portion 30 comprising a base 31 and a guide structure 32, the guide structure 32 is arranged on the base 31, the base 31 can be radially movably arranged on the positioning portion 20 along the reference cylinder 10, the base 31 abuts against a side wall of a circular ring 80 to be welded, one side of the guide structure 32 is limitedly matched with the inner wall of the circular ring 80 to be welded; the first clamping portion 50 is arranged on the positioning portion 20, the first clamping portion 50 abuts against another side wall of the circular ring 80 to be welded; wherein, there are multiple locking mechanisms, and the multiple locking mechanisms are distributed at intervals along the circumference of the reference cylinder 10.

[0041] In this solution, a guide structure 32 is provided, which can play a guiding role when installing the circular ring 80 to be welded, so that the circular ring 80 to be welded can be abutted with the base 31 more quickly; a positioning portion 20 is provided, and when one side wall of the circular ring 80 to be welded abuts with the base 31, the positioning portion 20 can play a role of positioning and reference, and at the same time, the base 31 can be arranged on the positioning portion 20 to be movable along the radial direction of the reference cylinder 10, so that the circular ring 80 to be welded of different sizes can be adapted; the first clamping portion 50 is arranged on the positioning portion 20, so that it can abut with the other side wall of the circular ring 80 to be welded, thereby clamping the circular ring 80 to be welded. In this solution, a plurality of locking mechanisms are distributed at intervals along the circumference of the reference cylinder 10, so that the stability and reliability of the circular parts during welding can be ensured. Utilizing the annular weld locking device in this solution, the positioning portion 20, the guide portion 30 and the first clamping portion 50 are all arranged on the reference cylinder 10, with a simple structure and convenient adjustment, which effectively solves the problem of complex structure and difficult adjustment of the annular weld locking device in the prior art.

[0042] Optionally, the positioning portion 20 further includes a reinforcing plate, two sides of which are respectively connected to the first reference member 21 and the outer wall of the reference cylinder 10 .

[0043] The guide structure 32 includes a guide frame 321 and a plurality of rolling elements 322 . The guide frame 321 is fixedly connected to the base 31 . The plurality of rolling elements 322 are arranged on the guide frame 321 at intervals along the axial direction of the reference cylinder 10 . The rolling elements 322 abut against the inner wall of the circular ring 80 to be welded.

[0044] By setting up a guide frame 321, it can be fixedly connected to the base 31; multiple rolling members 322 are set on the guide frame 321 at intervals along the axial direction of the reference cylinder 10, and the rolling members 322 are used to abut against the inner wall of the circular ring 80 to be welded, so that when the circular ring 80 to be welded is installed from top to bottom, it can smoothly abut against the base 31.

[0045] Furthermore, the axis of the rolling element 322 is perpendicular to the axis of the circular ring 80 to be welded, and the surface of the rolling element 322 is an arc surface, which fits the arc surface of the inner wall of the circular ring 80 to be welded.

[0046] The arc surface is fitted with the arc surface of the inner wall of the circular ring 80 to be welded, so that the circular ring 80 to be welded can slide down along the guide frame 321 more smoothly, thereby abutting against the base 31.

[0047] like Figure 4 and Figure 6 As shown, the guide frame 321 includes a main board body 3211, a first curved plate body 3212, a second curved plate body 3213 and a connecting plate 3214. The main board body 3211 is fixedly connected to the base 31, the first curved plate body 3212 and the second curved plate body 3213 are both connected to the main board body 3211, the first curved plate body 3212 and the second curved plate body 3213 are arranged at intervals, and the inclination directions of the first curved plate body 3212 and the second curved plate body 3213 are both toward the reference cylinder 10, the two ends of the rolling member 322 are rotatably connected to the first curved plate body 3212 and the second curved plate body 3213 respectively, and the main board body 3211, the first curved plate body 3212, and the second curved plate body 3213 are all connected to the connecting plate 3214.

[0048] The first arc-shaped plate body 3212 and the second arc-shaped plate body 3213 are arranged at intervals to facilitate the installation of the rolling member 322 ; the main plate body 3211 is arranged to be fixedly connected to the base 31 .

[0049] The first arc-shaped plate 3212 and the second arc-shaped plate 3213 are both inclined toward the reference cylinder 10 , so that the circular ring 80 to be welded can be smoothly inserted into the reference cylinder 10 and abut against the positioning portion 20 .

[0050] like Figure 3 and Figure 4As shown, the positioning portion 20 includes a first reference member 21 and a first fixed member 23 connected to the reference cylinder 10, the base 31 includes a fixed block 311, a guide slider 312 and a first driving screw 313, one end of the fixed block 311 is connected to the first reference member 21, one end of the guide slider 312 is slidably matched with the other end of the fixed block 311, the other end of the guide slider 312 is connected to the guide structure 32, the first driving screw 313 is located in the fixed block 311, the first driving screw 313 is drivingly connected to the guide slider 312, and the first driving screw 313 is rotatably arranged to drive the guide slider 312 to move radially along the reference cylinder 10.

[0051] A first driving screw 313 is provided to drive the guide slider 312 to move radially along the reference cylinder 10 , so as to adapt to the to-be-welded rings 80 of different sizes; a fixing block 311 is provided to be connected to the first reference member 21 .

[0052] In this embodiment, the positioning portion 20 includes a second reference member 22 connected to the reference cylinder 10, and the annular welding member locking device also includes a bearing portion 40, which is located on the second reference member 22 and supports the guide structure 32 away from the side of the circular ring 80 to be welded.

[0053] The bearing portion 40 is disposed on the second reference member 22 , so that the bearing portion 40 can support the side of the guide structure 32 away from the to-be-welded circular ring 80 , thereby supporting the guide structure 32 .

[0054] Specifically, the bearing portion 40 includes a bearing seat 41 and a bearing slider 42, the guide structure 32 has an inclined surface, one end of the bearing seat 41 is connected to the second reference member 22, one end of the bearing slider 42 is slidably matched with the other end of the bearing seat 41, and the other end of the bearing slider 42 abuts against the inclined surface, and the bearing slider 42 is movably arranged along the axial direction of the reference cylinder 10 to bear the force exerted on the guide structure 32. The bearing slider 42 is movably arranged along the axial direction of the reference cylinder 10, and the other end of the bearing slider 42 abuts against the inclined surface, so that the force exerted on the guide structure 32 can be transferred to the reference cylinder 10, which plays a role in unloading.

[0055] Among them, the bearing slider 42 includes a main block body 421 and an inclined block 422, and the bearing part 40 also includes a second driving screw rod 43. One end of the main block body 421 is slidably matched with the other end of the bearing seat 41, and the other end of the main block body 421 is connected to the inclined block 422. The inclined block 422 abuts against the inclined surface. The second driving screw rod 43 is located in the bearing seat 41, and the second driving screw rod 43 is drivingly connected to the bearing slider 42. The second driving screw rod 43 is rotatably arranged to drive the bearing slider 42 to move axially along the reference cylinder 10.

[0056] In this way, when the bearing sliding block 42 moves axially along the reference cylinder 10 , the inclined block 422 and the inclined surface are always in abutment with each other, so that the force exerted on the guide structure 32 can be better transferred to the reference cylinder 10 .

[0057] like Figure 3 , Figure 7 and Figure 8 As shown, the positioning portion 20 includes a first reference member 21 and a first fixing member 23 connected to the reference cylinder 10, and the first clamping portion 50 includes a connecting component 51, a sleeve 52 and a pressure block 53. The two ends of the connecting component 51 are detachably connected to the first reference member 21 and the first fixing member 23 respectively, and the pressure block 53 is rotatably sleeved on the connecting component 51. The sleeve 52 is sleeved on the connecting component 51 and abuts against one end of the pressure block 53. The other end of the pressure block 53 abuts against the other side wall of the ring 80 to be welded. The position of the sleeve 52 on the connecting component 51 is adjustable to adjust the position of the pressure block 53.

[0058] In this way, the connecting component 51 can be detachably connected to the first reference component 21 and the first fixing component 23, and the pressing block 53 can abut against the other side wall of the circular ring 80 to be welded to press the circular ring 80 to be welded; the position of the sleeve 52 on the connecting component 51 is adjustable, so that the position of the pressing block 53 can be adjusted to adapt to the circular rings 80 to be welded of different widths, thereby improving the versatility of the locking device of the annular welding part.

[0059] Among them, the positioning part 20 also includes a second reference member 22 connected to the reference cylinder 10, the connecting assembly 51 includes a first positioning column 511, a connecting column 512 and a second positioning column 513 connected in sequence, the first clamping part 50 also includes a first fastener 54, a second fastener 55 and an adjusting member 56, the diameter of the connecting column 512 is larger than the diameter of the first positioning column 511 and the diameter of the second positioning column 513, the first positioning column 511 is connected to the first fixing member 23 through the first fastener 54, the second positioning column 513 is connected to the second reference member 22 through the second fastener 55, the pressing block 53 is sleeved on the connecting column 512, the sleeve 52 is sleeved on the connecting column 512, and the position of the sleeve 52 on the connecting column 512 is adjusted by the adjusting member 56.

[0060] A first fastener 54 is provided to connect the first positioning column 511 and the first fixing member 23; a second fastener 55 is provided to connect the second positioning column 513 and the second reference member 22. The first fastener 54 and the second fastener 55 are both nuts, the first positioning column 511 and the second positioning column 513 have external threads, the first fastener 54 and the first positioning column 511 are threadedly connected, and the second fastener 55 and the second positioning column 513 are threadedly connected; the adjusting member 56 includes a first adjusting nut and a second adjusting nut abutting against each other, the first adjusting nut and the second adjusting nut are threadedly connected to the connecting column 512, and the second adjusting nut abuts against the sleeve 52, and the position of the sleeve 52 on the connecting column 512 can be adjusted by screwing the first adjusting nut and the second adjusting nut.

[0061] Among them, the first fixing member 23 has a first wedge-shaped groove 231, the second reference member 22 has a second wedge-shaped groove 221, the connecting column 512 has a limiting surface 5121, the limiting surface 5121 and the end of the first fixing member 23 facing the second reference member 22 abut each other, the first positioning column 511 and the second positioning column 513 both have a wedge-shaped positioning surface 5111, the first positioning column 511 is inserted into the first wedge-shaped groove 231, the wedge-shaped positioning surface 5111 of the first positioning column 511 abuts against the inner wall of the first wedge-shaped groove 231, the second positioning column 513 is inserted into the second wedge-shaped groove 221, the wedge-shaped positioning surface 5111 of the second positioning column 513 abuts against the inner wall of the second wedge-shaped groove 221.

[0062] The wedge-shaped positioning surface 5111 of the first positioning column 511 is abutted against the inner wall of the first wedge-shaped groove 231, which can increase the contact area between the first fixing member 23 and the first positioning column 511, so that the first fixing member 23 can withstand a larger force; the wedge-shaped positioning surface 5111 of the second positioning column 513 is abutted against the inner wall of the second wedge-shaped groove 221, which can increase the contact area between the second reference member 22 and the second positioning column 513, so that the second reference member 22 can withstand a larger force.

[0063] In this embodiment, the positioning portion 20 includes a first reference member 21, a first fixing member 23, a second fixing member 24 and a third fixing member 25 arranged on the reference cylinder 10, and the annular welding member locking device also includes a spacer portion 60 and a second clamping portion 70. The second fixing member 24 and the third fixing member 25 are arranged side by side with the first fixing member 23, and the second fixing member 24 is located between the first fixing member 23 and the third fixing member 25. The spacer portion 60 is rotatably arranged on the guide portion 30, and the two ends of the spacer portion 60 are respectively abutted against the side walls of the two circular rings 80 to be welded, and the two ends of the second clamping portion 70 are respectively detachably connected to the second fixing member 24 and the third fixing member 25, and the second clamping portion 70 is used to abut against the side wall of the circular ring 80 to be welded away from the spacer portion 60.

[0064] A spacer portion 60 is provided, and the two ends of the spacer portion 60 are respectively abutted against the side walls of the two circular rings 80 to be welded, so that the two circular rings 80 to be welded can be spaced apart; the two ends of the second clamping portion 70 are respectively detachably connected to the second fixing member 24 and the third fixing member 25, so that the second clamping portion 70 can abut against the side wall of the circular ring 80 to be welded away from the spacer portion 60, so that the two circular rings 80 to be welded can be locked, thereby improving the working efficiency of the annular welding part locking device.

[0065] Optionally, the first reference member 21 , the first fixing member 23 , the second fixing member 24 , and the third fixing member 25 are all perpendicular to the second reference member 22 .

[0066] like Figure 6 As shown, the spacer 60 includes a spacer seat 61 and a spacer plate 62. The spacer seat 61 is connected to the guide structure 32. The spacer plate 62 is rotatably arranged on the spacer seat 61. The spacer plate 62 is used to abut against the side wall of the circular ring 80 to be welded. The spacer plate 62 can abut against the side walls of the two circular rings 80 to be welded; the spacer seat 61 is arranged to facilitate fixing the spacer plate 62. The spacer plate 62 is rotatably arranged on the spacer seat 61, so that the spacer plate 62 can be rotated during installation to avoid the circular ring 80 to be welded.

[0067] Optionally, the spacer seat 61 includes a first seat body 611, a second seat body 612 and a fixed shaft 613, the first seat body 611 and the second seat body 612 are both connected to the guide structure 32, the first seat body 611 and the second seat body 612 are arranged at intervals, the two ends of the fixed shaft 613 are respectively connected to the first seat body 611 and the second seat body 612, and the spacer plate 62 is rotatably sleeved on the fixed shaft 613. In this way, the spacer plate 62 can be rotatably sleeved on the fixed shaft 613, so that the welding ring 80 can be avoided during installation.

[0068] Specifically, the reference cylinder 10 includes a central cylinder 11, an outer cylinder 12 and a reinforcing assembly 13. The central cylinder 11 is located in the cavity of the outer cylinder 12. The central cylinder 11 is connected to the outer cylinder 12 through the reinforcing assembly 13, and the positioning portion 20 is connected to the outer wall of the outer cylinder 12. The central cylinder 11 is connected to the outer cylinder 12 through the reinforcing assembly 13, so that the structural strength of the outer cylinder 12 can be enhanced and deformation is not easy to occur.

[0069] Optionally, the positioning portion 20 also includes a second reference member 22 connected to the reference cylinder 10, and the reinforcement assembly 13 includes an edge reinforcement member 131 and a middle reinforcement member 132. There are multiple edge reinforcement members 131 and multiple middle reinforcement members 132. The multiple edge reinforcement members 131 are distributed circumferentially along the end of the outer cylinder body 12, and the multiple middle reinforcement members 132 are distributed circumferentially along the middle of the outer cylinder body 12. The positions of the multiple middle reinforcement members 132 correspond to the positions of the multiple second reference members 22.

[0070] The positions of the middle reinforcement members 132 correspond to the positions of the second reference members 22, so that the second reference members 22 can withstand greater forces. The edge reinforcement members 131 are distributed circumferentially along the ends of the outer cylinder 12, so that the overall structural strength of the outer cylinder 12 can be enhanced.

[0071] Optionally, the annular weld locking device further comprises a plurality of hoisting holes provided on the edge reinforcement member 131, and the plurality of hoisting holes are provided in a one-to-one correspondence with the plurality of edge reinforcement members 131. The hoisting holes are provided to facilitate adjustment of the position of the annular weld locking device in practical application.

[0072] In this embodiment, the annular welding part locking device also includes at least one adjusting gasket 90. The base 31 has a groove. The adjusting gasket 90 is located in the groove. The adjusting gasket 90 abuts against a side wall of the circular ring 80 to be welded. The adjusting gasket 90 is used to adjust the position of the circular ring 80 to be welded.

[0073] In this way, when the circular ring 80 to be welded is in contact with the base 31 , if the outer surface of the circular ring 80 to be welded is uneven, it can be adjusted by adjusting the gasket 90 to ensure that the outer surface of the circular ring 80 to be welded is tightly fitted with the base 31 .

[0074] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0075] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0076] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0077] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0078] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A locking device for an annular welded part, characterized in that: include: Reference cylinder (10); A locking mechanism, the locking mechanism comprising a positioning portion (20), a guide portion (30) and a first pressing portion (50), the guide portion (30) comprising a base (31) and a guide structure (32), the guide structure (32) being arranged on the base (31), the base (31) being arranged on the positioning portion (20) so as to be movable along the radial direction of the reference cylinder (10), the base (31) being in contact with a side wall of a circular ring (80) to be welded, one side of the guide structure (32) being in position-limiting cooperation with an inner wall of the circular ring (80) to be welded; the first pressing portion (50) being arranged on the positioning portion (20), the first pressing portion (50) being in contact with another side wall of the circular ring (80) to be welded; There are multiple locking mechanisms, and the multiple locking mechanisms are distributed at intervals along the circumference of the reference cylinder (10).

2. The annular welding piece locking device according to claim 1, characterized in that: The guide structure (32) comprises a guide frame (321) and a plurality of rolling elements (322); the guide frame (321) and the base (31) are fixedly connected; the plurality of rolling elements (322) are arranged on the guide frame (321) at intervals along the axial direction of the reference cylinder (10); and the rolling elements (322) abut against the inner wall of the circular ring (80) to be welded.

3. The annular welding piece locking device according to claim 2, characterized in that: The axis of the rolling element (322) is perpendicular to the axis of the circular ring (80) to be welded, and the surface of the rolling element (322) is an arc surface, which fits the arc surface of the inner wall of the circular ring (80) to be welded.

4. The annular welding piece locking device according to claim 2, characterized in that: The guide frame (321) comprises a main body (3211), a first curved plate (3212), a second curved plate (3213) and a connecting plate (3214); the main body (3211) and the base (31) are fixedly connected; the first curved plate (3212) and the second curved plate (3213) are both connected to the main body (3211); the first curved plate (3212) and the second curved plate (3213) are connected to each other; The first arc-shaped plate (3212) and the second arc-shaped plate (3213) are arranged at intervals, the inclination directions of the first arc-shaped plate (3212) and the second arc-shaped plate (3213) are both toward the reference cylinder (10), the two ends of the rolling element (322) are rotatably connected to the first arc-shaped plate (3212) and the second arc-shaped plate (3213) respectively, and the main plate (3211), the first arc-shaped plate (3212), and the second arc-shaped plate (3213) are all connected to the connecting plate (3214).

5. The annular welding piece locking device according to claim 1, characterized in that: The positioning portion (20) comprises a first reference member (21) and a first fixing member (23) connected to the reference cylinder (10); the base (31) comprises a fixing block (311), a guide slider (312) and a first driving screw (313); one end of the fixing block (311) is connected to the first reference member (21); one end of the guide slider (312) is slidably matched with the other end of the fixing block (311); the other end of the guide slider (312) is connected to the guide structure (32); the first driving screw (313) is located in the fixing block (311); the first driving screw (313) and the guide slider (312) are drivingly connected; the first driving screw (313) is rotatably arranged to drive the guide slider (312) to move radially along the reference cylinder (10).

6. The annular welding piece locking device according to claim 1, characterized in that: The positioning portion (20) includes a second reference member (22) connected to the reference cylinder (10), and the annular welding member locking device also includes a bearing portion (40), the bearing portion (40) is located on the second reference member (22), and the bearing portion (40) supports the side of the guide structure (32) away from the circular ring (80) to be welded.

7. The annular welding piece locking device according to claim 6, characterized in that: The bearing portion (40) includes a bearing seat (41) and a bearing slider (42); the guide structure (32) has an inclined surface; one end of the bearing seat (41) is connected to the second reference member (22); one end of the bearing slider (42) is slidably matched with the other end of the bearing seat (41); the other end of the bearing slider (42) is in contact with the inclined surface; the bearing slider (42) can be axially movably arranged along the reference cylinder (10) to bear the force applied to the guide structure (32).

8. The annular welding piece locking device according to claim 7, characterized in that: The bearing slider (42) includes a main block body (421) and an inclined block (422), and the bearing portion (40) also includes a second driving screw rod (43). One end of the main block body (421) and the other end of the bearing seat (41) are slidably matched, and the other end of the main block body (421) is connected to the inclined block (422). The inclined block (422) and the inclined surface are abutted. The second driving screw rod (43) is located in the bearing seat (41), and the second driving screw rod (43) and the bearing slider (42) are drivingly connected. The second driving screw rod (43) is rotatably arranged to drive the bearing slider (42) to move axially along the reference cylinder (10).

9. The annular welding piece locking device according to claim 1, characterized in that: The positioning portion (20) comprises a first reference member (21) and a first fixing member (23) connected to the reference cylinder (10); the first pressing portion (50) comprises a connecting component (51), a sleeve (52) and a pressing block (53); the two ends of the connecting component (51) are detachably connected to the first reference member (21) and the first fixing member (23), respectively; the pressing block (53) is rotatably sleeved on the connecting component (51); the sleeve (52) is sleeved on the connecting component (51) and abuts against one end of the pressing block (53); the other end of the pressing block (53) abuts against another side wall of the circular ring (80) to be welded; the position of the sleeve (52) on the connecting component (51) is adjustable to adjust the position of the pressing block (53).

10. The annular welding piece locking device according to claim 9, characterized in that: The positioning part (20) further comprises a second reference member (22) connected to the reference cylinder (10); the connecting assembly (51) comprises a first positioning column (511), a connecting column (512) and a second positioning column (513) which are connected in sequence; the first pressing part (50) further comprises a first fastener (54), a second fastener (55) and an adjusting member (56); the diameter of the connecting column (512) is larger than the diameter of the first positioning column (511) and the diameter of the second positioning column (513); the first positioning column (511) is connected to the first fixing member (23) via the first fastener (54); the second positioning column (513) is connected to the second reference member (22) via the second fastener (55); the pressing block (53) is sleeved on the connecting column (512); the sleeve (52) is sleeved on the connecting column (512); the position of the sleeve (52) on the connecting column (512) is adjusted via the adjusting member (56).

11. The annular welding piece locking device according to claim 10, characterized in that: The first fixing member (23) has a first wedge-shaped groove (231), the second reference member (22) has a second wedge-shaped groove (221), the connecting column (512) has a limiting surface (5121), the limiting surface (5121) and an end of the first fixing member (23) facing the second reference member (22) abut against each other, the first positioning column (511) and the second positioning column (513) both have a wedge-shaped positioning surface (5111), the first positioning column (511) is inserted into the first wedge-shaped groove (231), the wedge-shaped positioning surface (5111) of the first positioning column (511) abuts against an inner wall of the first wedge-shaped groove (231), the second positioning column (513) is inserted into the second wedge-shaped groove (221), the wedge-shaped positioning surface (5111) of the second positioning column (513) abuts against an inner wall of the second wedge-shaped groove (221).

12. The annular welding piece locking device according to claim 1, characterized in that: The positioning part (20) comprises a first reference part (21), a first fixing part (23), a second fixing part (24) and a third fixing part (25) which are arranged on the reference cylinder (10); the annular welding part locking device further comprises a spacer part (60) and a second pressing part (70); the second fixing part (24) and the third fixing part (25) are arranged side by side with the first fixing part (23); the second fixing part (24) is located between the first fixing part (23) and the third fixing part (25); the spacer part (60) is rotatably arranged on the guide part (30); the two ends of the spacer part (60) are respectively in contact with the side walls of the two circular rings (80) to be welded; the two ends of the second pressing part (70) are respectively detachably connected with the second fixing part (24) and the third fixing part (25); the second pressing part (70) is used to be in contact with the side wall of the circular ring (80) to be welded which is away from the spacer part (60).

13. The annular welding piece locking device according to claim 12, characterized in that: The spacer portion (60) comprises a spacer seat (61) and a spacer plate (62); the spacer seat (61) is connected to the guide structure (32); the spacer plate (62) is rotatably arranged on the spacer seat (61); and the spacer plate (62) is used to abut against the side wall of the circular ring (80) to be welded.

14. The annular welding piece locking device according to claim 1, characterized in that: The reference cylinder (10) comprises a central cylinder (11), an outer cylinder (12) and a reinforcing assembly (13); the central cylinder (11) is located in the cavity of the outer cylinder (12); the central cylinder (11) is connected to the outer cylinder (12) via the reinforcing assembly (13); and the positioning portion (20) is connected to the outer wall of the outer cylinder (12).

15. The annular welding piece locking device according to claim 1, characterized in that: The annular welding piece locking device further comprises at least one adjusting gasket (90); the base (31) has a groove; the adjusting gasket (90) is located in the groove; the adjusting gasket (90) abuts against a side wall of the circular ring (80) to be welded; and the adjusting gasket (90) is used to adjust the position of the circular ring (80) to be welded.

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