Fixing device for welding water tank

Abstract

The utility model provides a fixing device for water tank welding, the device comprises a corner clamping assembly, a first side edge clamping mechanism and a second side edge clamping mechanism, the corner clamping assembly is used for positioning and fixing the corner of a water tank step, the first side edge clamping mechanism is used for clamping the side wall of the water tank step extending in the width direction of the water tank, and the second side edge clamping mechanism is used for clamping the side wall of the water tank step extending in the width direction of the water tank. The first side edge clamping mechanism is used for clamping the side wall of the water tank step extending in the length direction of the water tank, the second side edge clamping mechanism is used for clamping the side wall of the water tank step extending in the length direction of the water tank, and therefore the side wall of the water tank step at the corners of the water tank step is stably fixed through the corner clamping assembly, and the side wall of the water tank step located between the corners of the water tank step is clamped through the first side edge clamping mechanism and the second side edge clamping mechanism. It is guaranteed that the fixed water tank step side walls are fixed stably and the fixing positions are accurate, so that it is guaranteed that the position of a welding vertical seam between every two adjacent water tank step side walls is accurate, and the welding accuracy, consistency and convenience of the water tank step vertical seams are improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of welding equipment, in particular to a fixing device for sink welding. BACKGROUND

[0002] The conventional manual sink step corner welding adopts manual spot welding and argon arc welding to perform vertical seam welding on the step corner, without the need for a tool to pre-clip the sink part; the sink step corner region is usually spliced with a rounded corner, and after manual spot welding and argon arc welding, the sink corner region is polished and wired, wherein the stability and consistency of manual spot welding and argon arc welding are poor, the operation requirements for the operator are high, and the polishing amount required for the sink step corner after welding is large. CONTENT OF THE UTILITY MODEL

[0003] In view of at least one of the above problems existing in the prior art, the present application provides a fixing device for sink welding.

[0004] The present disclosure provides a fixing device for sink welding, which comprises a corner clamping assembly, a first side edge clamping mechanism and a second side edge clamping mechanism;

[0005] The corner clamping assembly comprises a corner positioning block and two corner pressing parts, the corner positioning block is used for positioning at least part of the inner surface of the sink step corner, and the two corner pressing parts are used for respectively applying a pre-tightening force to the outer surfaces of the two side walls of the sink step corner;

[0006] The first side edge clamping mechanism is used for clamping the sink step side wall extending in the width direction of the sink, and the first side edge clamping mechanism is located between two adjacent corner clamping assemblies;

[0007] The second side edge clamping mechanism is used for clamping the sink step side wall extending in the length direction of the sink, and the first side edge clamping mechanism is located between two adjacent corner clamping assemblies.

[0008] Optionally, the corner positioning block comprises two corner positioning surfaces, and the two corner positioning surfaces are used for respectively abutting the end inner surfaces of two adjacent sink step side walls.

[0009] Optionally, the corner pressing part comprises a lifting driving assembly and a corner pressing piece, the lifting driving assembly is connected to a horizontal driving assembly, the lifting driving assembly is used for driving the corner pressing piece to move in the vertical direction, and the corner pressing piece comprises a first abutting surface for abutting the end outer surface of the sink step side wall and a second abutting surface for abutting the top panel of the sink.

[0010] Optionally, the first side clamping mechanism comprises at least one side clamping assembly, and the second side clamping mechanism comprises a plurality of side clamping assemblies.

[0011] The side clamping assembly comprises a side positioning block and a side pressing part corresponding to the side positioning block, the side positioning block is used for positioning the inner surface of the sink step side wall, and the side pressing part is used for applying a pre-tightening force to the outer surface of the sink step side wall.

[0012] Optionally, the side pressing part comprises a first pressing piece and a second pressing piece, the first pressing piece is used for being connected to the horizontal driving assembly, the second pressing piece is movably connected to the first pressing piece, and the second pressing piece is provided with a pressing abutting surface used for abutting against the outer surface of the sink step side wall.

[0013] Optionally, the fixing device further comprises a support body provided with a support surface, the support surface is used for supporting the sink, and the corner positioning block and the side positioning block are fixedly connected to the support body.

[0014] Optionally, the fixing device further comprises a gas supply part, the gas supply part is used for supplying protective gas to the inner side of the sink step corner side wall weld area.

[0015] Optionally, the fixing device further comprises a positioning column, the positioning column is provided with a cross-sectional shape matched with a through hole on the sink faucet panel, and the positioning column is used for positioning the through hole on the sink faucet panel.

[0016] Optionally, the fixing device further comprises a sink body positioning assembly, the sink body positioning assembly is used for positioning one sink body of the sink.

[0017] Optionally, the sink body positioning assembly is used for positioning the one sink body by respectively abutting against the inner surfaces of two sink body side walls of the one sink body arranged opposite in the length direction of the sink.

[0018] The sink body positioning assembly comprises a plurality of first sink body positioning pieces and a plurality of second sink body positioning pieces, the first sink body positioning pieces are used for abutting against the inner surface of one of the two sink body side walls, and the second sink body positioning pieces are used for abutting against the inner surface of the other of the two sink body side walls.

[0019] The present disclosure has the following beneficial effects:

[0020] The present disclosure provides a fixing device for sink welding, which comprises a corner clamping assembly, a first side edge clamping mechanism and a second side edge clamping mechanism, the corner clamping assembly comprises a corner positioning block and two corner pressing parts, the first side edge clamping mechanism is used for clamping the sink step side wall extending along the sink width direction, and the second side edge clamping mechanism is used for clamping the sink step side wall extending along the sink length direction, so that the sink step side wall at the sink step corner is stably fixed by the corner clamping assembly, the vertical seam welding of the sink step corner is facilitated, the sink step side wall between the sink step corners is clamped by the first side edge clamping mechanism and the second side edge clamping mechanism, the fixed sink step side wall is stably fixed, the fixed position is accurate, the welding vertical seam position between the adjacent two sink step side walls is accurate, and the welding accuracy, consistency and convenience of the sink step vertical seam are improved.

[0021] The protective gas is supplied to the inside of the sink step corner side wall welding seam area by the gas supply part, so that the metal droplet, the molten pool and the welding seam area are protected by the protective gas during the welding of the sink step vertical seam, the inner surface of the sink step corner welding seam is prevented from discoloring, and thus the inside surface of the sink step corner side wall welding seam area does not need to be polished after welding, and the processing procedure and processing cost of the sink are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present disclosure, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a sink structure schematic diagram in the embodiment of the present disclosure;

[0024] Figure 2 is a structure schematic diagram of the fixing device according to the present disclosure;

[0025] Figure 3 is a partial structure schematic diagram of the fixing device according to the present disclosure;

[0026] Figure 4 is an assembly structure schematic diagram of fixing the sink to the fixing device according to the present disclosure. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present disclosure.

[0028] As shown in Figures 1-4 , the present embodiment provides a fixing device for sink welding. The present embodiment is suitable for a sink for welding processing, as shown in Figure 1 , the sink comprises one or two sink bodies 11, the upper part of the sink body 11 is sequentially connected with a sink faucet panel 12, a step part 13 and a sink top panel 14, the sink faucet panel 12 is provided with 1-2 through holes 120 for installing a faucet, a water purifier faucet or a cleaning agent container, etc., the step part 13 comprises a plurality of sink step side walls 130 extending in the vertical direction, two adjacent sink step side walls 130 are connected by a welding vertical seam, the lower part of the sink step side wall 130 is connected with the sink body 11, and the upper part is connected with the sink top panel 14.

[0029] As shown in Figures 2-4 , the fixing device comprises a corner clamping assembly, a first side edge clamping mechanism and a second side edge clamping mechanism. The corner clamping assembly is used for positioning and fixing the sink step corner 131. In the present embodiment, the connection between the two adjacent sink step side walls 130 is a welding vertical seam connection structure, which is a side wall welding seam area. The connection is formed as a connection corner, and the connection corner and the part of the two sink step side walls 130 adjacent to the connection corner constitute the sink step corner 131. In other words, the sink step corner 131 comprises a part of the distance between the outer surfaces of any one of the two adjacent sink step side walls 130 and the other sink step side wall 130, which is less than or equal to a predetermined distance. The sink step corner 131 also comprises a connection structure between the two adjacent sink step side walls 130 or a region corresponding to the connection structure.

[0030] The corner clamping assembly comprises a corner positioning block 21 and two corner pressing parts 22. The corner positioning block 21 is used for positioning at least part of the inner surface of the sink step corner 131. The two corner pressing parts 22 are used for respectively applying a pre-tightening force to the outer surfaces of the two side walls of the sink step corner 131. Thus, by positioning and fixing the sink step corner 131 by the corner positioning block 21 and the two corner pressing parts 22, and fixing part of the sink step corner 131 between the corner positioning block 21 and the two corner pressing parts 22, the sink step side wall 130 at the sink step corner 131 can be stably fixed, and the vertical seam welding of the sink step corner 131 can be facilitated.

[0031] The first side edge clamping mechanism is used for clamping the water tank step side wall 130 extending along the water tank width direction, and is located between two adjacent corner clamping assemblies; the second side edge clamping mechanism is used for clamping the water tank step side wall 130 extending along the water tank length direction, and is located between two adjacent corner clamping assemblies. In this way, the water tank step side wall 130 between the water tank step corner 131 and extending along the water tank width direction is clamped by the first side edge clamping mechanism, and the water tank step side wall 130 between the water tank step corner 131 and extending along the water tank length direction is clamped by the second side edge clamping mechanism, so as to ensure that the fixed water tank step side wall 130 is fixed stably and accurately, thereby ensuring that the welding vertical seam position between the two adjacent water tank step side walls 130 is accurate, and improving the welding accuracy, consistency and convenience of the water tank step vertical seam.

[0032] In an optional embodiment, the corner positioning block 21 comprises two corner positioning faces 210, which are used for abutting against the end inner surfaces of two adjacent water tank step side walls 130. In this embodiment, the two adjacent water tank step side walls 130 of the step portion 13 are substantially perpendicular to each other, and the two corner positioning faces 210 are substantially perpendicular to each other, so as to support and position the two adjacent water tank step side walls 130 to extend substantially perpendicular to each other, thereby forming a vertical structure of the water tank step corner 131 and a welding vertical seam area between the two adjacent water tank step side walls 130.

[0033] In an optional embodiment, the corner pressing portion 22 comprises a lifting driving assembly 221 and a corner pressing piece 222, the lifting driving assembly 221 is connected to the corner pressing piece 222, and the lifting driving assembly 221 is connected to the horizontal driving assembly. The lifting driving assembly 221 and the corner pressing piece 222 can move away from or close to the water tank step side wall 130 along a preset direction under the driving of the horizontal driving assembly. The lifting driving assembly is used for driving the corner pressing piece to move along the vertical direction. The corner pressing piece comprises a first abutting face used for abutting against the end outer surface of the water tank step side wall 130 and a second abutting face used for abutting against the water tank top panel 14. After the horizontal driving assembly drives the corner pressing piece to move and abut against the outer surface of the water tank step side wall 130, the lifting driving assembly drives the corner pressing piece to move towards the water tank top panel 14 and abut the second abutting face against the water tank top panel 14, so as to clamp the water tank top panel 14 between the corner pressing piece and the supporting component on the other side of the water tank top panel 14, thereby facilitating the welding connection of the two adjacent water tank top panel bodies.

[0034] In an alternative embodiment, the corner pressing part 22 comprises a corner pressing piece 222 connected to the horizontal driving assembly, the corner pressing piece being capable of moving away from or approaching the sink step side wall 130 along a preset direction under the driving of the horizontal driving assembly, the corner pressing piece comprising a first abutting surface for abutting the end outer surface of the sink step side wall 130, the corner pressing piece being capable of abutting the end outer surface of the sink step side wall 130 through the first abutting surface and applying a pre-tightening force to the sink step side wall 130 under the driving of the horizontal driving assembly.

[0035] In an alternative embodiment, the first side edge clamping mechanism comprises at least one side edge clamping assembly, preferably 2-5 side edge clamping assemblies, for example 3 side edge clamping assemblies.

[0036] The second side edge clamping mechanism comprises a plurality of side edge clamping assemblies, preferably 2-6 side edge clamping assemblies, for example 3 or 4 side edge clamping assemblies.

[0037] The side edge clamping assembly comprises a side edge positioning block 31 and a side edge pressing part 32 corresponding to the side edge positioning block 31. The side edge positioning block 31 is used for positioning the inner surface of the sink step side wall 130, specifically, the side edge positioning block 31 comprises a side edge positioning surface, and the side edge positioning block 31 abuts the inner surface of the sink step side wall 130 through the side edge positioning surface to position the inner surface of the sink step side wall 130. The side edge pressing part 32 is arranged opposite to the side edge positioning block 31, and the side edge pressing part 32 is used for applying a pre-tightening force to the outer surface of the sink step side wall 130, so as to position and fix the sink step side wall 130 through the side edge positioning block 31 and the side edge pressing part 32, avoid bending deformation of the sink step side wall, and ensure the fixing stability and the fixed position accuracy of the sink step side wall.

[0038] In an alternative embodiment, the side edge pressing part 32 comprises a first pressing piece 321 and a second pressing piece 322, the first pressing piece 321 is used for connecting to the horizontal driving assembly, and the second pressing piece 322 is movably connected to the first pressing piece 321, the first pressing piece 321 and the second pressing piece 322 being capable of moving away from or approaching the sink step side wall 130 under the driving of the horizontal driving assembly. The second pressing piece 322 is provided with a pressing abutting surface for abutting the outer surface of the sink step side wall 130, and the second pressing piece 322 abuts the outer surface of the sink step side wall 130 through the pressing abutting surface and applies a pre-tightening force to the outer surface of the sink step side wall 130.

[0039] Optionally, the second pressing member 322 is movable relative to the first pressing member 321 in a direction perpendicular to the sink step side wall 130, preferably, the second pressing member 322 is connected with the first pressing member 321 through an elastic deformation structure such as a spring, air bag or pressure chamber, when the first pressing member 321 and the second pressing member 322 move towards the sink step side wall 130, the spring, air bag or pressure chamber is gradually compressed and deformed due to the reaction force of the sink step side wall 130, the reaction force between the second pressing member 322 and the sink step side wall 130 gradually increases, thereby, the elastic deformation structure and the second pressing member 322 are used for buffering, avoiding damage or irreversible deformation of the side pressing portion due to impact.

[0040] In an optional embodiment, the fixing device further comprises a support body 4 provided with a support surface, the support surface is used for supporting the sink, in particular, when the sink is invertedly buckled on the support body 4, the support surface abuts against and applies a support action to the sink top panel 14, thereby supporting the sink.

[0041] Optionally, the corner positioning block 21 and the side positioning block 31 are fixedly connected to the support body 4, thereby, the corner positioning block 21 and the side positioning block 31 have a fixed and accurate relative positional relationship, which can accurately position the sink.

[0042] For the embodiment in which the corner pressing portion 22 comprises a lifting driving assembly and a corner pressing member, the second abutting surface of the corner pressing member abuts against the sink top panel 14, thereby clamping the sink top panel between the corner pressing member and the support body 4, so as to weld connect the adjacent two sink top panel bodies.

[0043] In an optional embodiment, the fixing device further comprises a gas supply portion 51, the gas supply portion 51 can be connected to a protective gas source, the gas supply portion 51 is used for supplying protective gas to the inside of the sink step corner 131 side wall weld area, thereby, during the welding process of the sink step vertical seam, the metal droplet, molten pool and weld area are protected by the protective gas, avoiding the discoloration of the inside surface of the sink step corner 131 weld, so that the inside surface of the sink step corner side wall weld area does not need to be polished after welding, reducing the processing procedure and processing cost of the sink.

[0044] Optionally, the gas supply portion 51 comprises a plurality of gas outlets, the plurality of gas outlets are arranged, in particular, arranged into 1-3 rows, for example, 2 rows in the vertical direction, thereby, the protective gas is supplied to each part of the inside surface of the sink step corner side wall weld through the 1-3 rows of gas outlets of the gas supply portion, and the weld area is protected.

[0045] Optionally, the gas supply part 51 is connected to the corner positioning block 21, or the gas supply part is arranged in the corner positioning block 21.

[0046] Optionally, the fixing device further comprises a top panel gas supply part 52, the top panel gas supply part 52 is connectable to a protective gas source, and the top panel gas supply part 52 is used to supply the protective gas to the weld area between two adjacent top panels of the sink away from the side of the sink body 11, so that the metal droplet, the molten pool and the weld area are protected by the protective gas during the welding process of the weld area between the two adjacent top panels of the sink, and the weld side between the two adjacent top panels of the sink is prevented from discoloration, so that the weld side does not need to be polished after welding, and the processing procedure and cost of the sink are reduced.

[0047] Optionally, the top panel gas supply part 52 comprises a plurality of gas outlets, and the plurality of gas outlets are arranged, especially arranged in 1-3 rows, such as 2 rows, in the horizontal direction, so that the protective gas is supplied to each part of the weld side between the two adjacent top panels of the sink by the 1-3 rows of gas outlets of the top panel gas supply part, and the weld area is protected.

[0048] Optionally, the top panel gas supply part is connected to the support body 4, or at least part of the top panel gas supply part is arranged in the support body 4.

[0049] In an optional embodiment, the fixing device further comprises a positioning column 61, the cross-sectional shape of the positioning column 61 is adapted to the through hole 120 on the sink faucet panel 12, and the cross-sectional shape is the shape of the cross section of the positioning column perpendicular to the axial direction of the positioning column. The positioning column 61 is used to position the through hole 120 on the sink faucet panel 12, specifically, the positioning column 61 can pass through the through hole 120, so as to define the fixed position of the through hole 120, and facilitate accurate positioning of the sink.

[0050] Optionally, the positioning column 61 is fixedly arranged on the support body 4, and optionally, the positioning column 61 is detachably or non-detachably connected to the support body 4.

[0051] In an optional embodiment, the fixing device further comprises a sink body positioning assembly, and the sink body positioning assembly is used to position one sink body 11 of the sink. Specifically, the sink body positioning assembly positions the one sink body 11 by positioning the inner surface of the sink body side wall of the one sink body 11, so as to realize positioning of the sink.

[0052] In an optional example, the through hole 120 on the sink faucet panel 12 is positioned by the positioning column first, and then one sink body 11 is positioned by the sink body positioning assembly, so that the sink can be quickly positioned and accurately positioned.

[0053] In an optional embodiment, the sink body positioning assembly is configured to position the one sink body 11 by abutting the inner surfaces of two sink side walls of the one sink body 11 arranged opposite to each other in the length direction of the sink. Optionally, the sink body positioning assembly includes a plurality of first sink body positioning members 62 and a plurality of second sink body positioning members 63, for example, 2-4 first sink body positioning members 62 and 2-4 second sink body positioning members. The plurality of first sink body positioning members 62 abut the inner surface of one of the two sink side walls arranged opposite to each other to position the sink side wall, and the plurality of second sink body positioning members 63 abut the inner surface of the other of the two sink side walls arranged opposite to each other to position the sink side wall. Thus, by positioning the two sink side walls arranged opposite to each other respectively, the sink body including the two sink side walls is positioned, which is beneficial to accurately positioning the relative positions between the sink body, the step part 13 and the sink top panel.

[0054] Optionally, the fixing device includes a plurality of horizontal driving assemblies, and the horizontal driving assemblies are configured to drive the corner pressing part 22 and the side edge pressing part 32 corresponding to the same sink step side wall 130. Specifically, the horizontal driving assembly includes a driving power source and a driving connecting member. The driving power source can be a pneumatic cylinder or a hydraulic cylinder. The driving connecting member is connected to the driving power source. The driving connecting member includes a driving plate 7 extending in the horizontal direction. The corner pressing part 22 and the side edge pressing part 32 corresponding to the same sink step side wall 130 are fixedly connected to the driving plate 7, respectively. The driving power source drives the corner pressing part 22 and the side edge pressing part 32 corresponding to the same sink step side wall 130 to move through the driving connecting member.

[0055] Optionally, the driving power source is fixedly connected to the support body.

[0056] The above disclosure is only a few preferred embodiments of the present disclosure, and of course cannot limit the scope of the present disclosure. Therefore, equivalent changes made according to the claims of the present disclosure are still within the scope of the present disclosure.

Claims

1. A fixture for sink welding, characterized by, The device comprises a corner clamping assembly, a first side edge clamping mechanism and a second side edge clamping mechanism; The corner clamping assembly comprises a corner positioning block (21) for positioning at least part of the inner surface of the sink step corner and two corner pressing portions (22) for respectively applying pre-tightening force to the outer surfaces of the two side walls of the sink step corner; The first side edge clamping mechanism is used for clamping the sink step side wall (130) extending along the width direction of the sink, and is located between two adjacent corner clamping assemblies; The second side edge clamping mechanism is used for clamping the sink step side wall (130) extending along the length direction of the sink, and is located between two adjacent corner clamping assemblies.

2. The fixture of claim 1, wherein The corner positioning block (21) comprises two corner positioning surfaces for respectively abutting the end inner surfaces of two adjacent sink step side walls.

3. A fixture according to claim 1 or 2, characterized in that The corner pressing portion (22) comprises a lifting driving assembly (221) connected to a horizontal driving assembly and a corner pressing piece (222), the lifting driving assembly (221) is used for moving the corner pressing piece (222) in the vertical direction, and the corner pressing piece (222) comprises a first abutting surface for abutting the end outer surface of the sink step side wall and a second abutting surface for abutting the sink top panel.

4. The fixture of claim 1 or 2, wherein The first side edge clamping mechanism comprises at least one side edge clamping assembly, and the second side edge clamping mechanism comprises a plurality of side edge clamping assemblies; The side edge clamping assembly comprises a side edge positioning block (31) for positioning the inner surface of the sink step side wall and a side edge pressing portion (32) corresponding to the side edge positioning block, and the side edge pressing portion (32) is used for applying pre-tightening force to the outer surface of the sink step side wall.

5. The fixture of claim 4, wherein The side edge pressing portion (32) comprises a first pressing piece (321) connected to a horizontal driving assembly and a second pressing piece (322) movably connected to the first pressing piece (321), and the second pressing piece (322) is provided with a pressing abutting surface for abutting the outer surface of the sink step side wall.

6. The fixture of claim 4, wherein Further comprising a support body (4) provided with a support surface for supporting the sink, and the corner positioning block (21) and the side edge positioning block are fixedly connected to the support body (4).

7. The fixture of claim 1 or 2, wherein Further comprising a gas supply portion (51) for supplying protective gas to the inside of the sink step corner side wall weld area.

8. The fixture of claim 1 or 2, wherein Further comprising a positioning column (61) with a cross-sectional shape matched with a through hole on the sink faucet panel (12), and the positioning column (61) is used for positioning the through hole on the sink faucet panel.

9. The fixture of claim 1 or 2, wherein Further comprising a tank positioning assembly for positioning one tank (11) of the sink.

10. The fixture of claim 9, wherein The sink positioning assembly is used for positioning the one sink (11) by abutting the inner surfaces of the two sink side walls arranged opposite in the length direction of the sink; The sink positioning assembly comprises a plurality of first sink positioning members (62) and a plurality of second sink positioning members (63), the first sink positioning members (62) are used for abutting the inner surface of one of the two sink side walls, and the second sink positioning members (63) are used for abutting the inner surface of the other of the two sink side walls.

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