Welding jig and welding equipment

Abstract

The utility model discloses a welding jig and welding equipment, and relates to the technical field of welding. The welding jig comprises a clamping mechanism, and the clamping mechanism is provided with a containing space used for containing a workpiece to be welded, a receding part, a welding part and an air blowing part, wherein the receding part, the welding part and the air blowing part communicate with the containing space. The blowing part is communicated with the clearance part and / or the welding part; the receding part and the welding part are arranged corresponding to the inner side and the outer side of the to-be-welded position of the to-be-welded workpiece correspondingly. The welding jig solves the technical problem that the welding quality is poor due to the fact that an existing welding jig cannot blow shielding gas.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding jig and welding equipment. Background Art

[0002] Welding is often used in mechanical manufacturing and engineering construction. The shapes of the workpieces to be welded are different. Therefore, in order to fix the workpieces to be welded during the welding process, it is generally necessary to use a welding jig to clamp and fix the workpieces to be welded. In the welding process, in order to improve the welding quality, it is generally necessary to blow protective gas while welding. The existing blowing mechanism is generally independently arranged outside the welding jig. When encountering some more complex workpieces to be welded and welding jigs, it cannot be adapted. As a result, this part of the welding jig has the problem of poor welding quality due to the inability to adapt to the independent blowing structure. Utility Model Content

[0003] In view of this, the utility model provides a welding jig and a welding device, which are used to solve the technical problem that the existing welding jig cannot blow shielding gas, resulting in poor welding quality.

[0004] In order to solve the above technical problems, the first technical solution adopted by the utility model is:

[0005] A welding jig comprises a clamping mechanism, wherein the clamping mechanism is provided with a receiving space for receiving a workpiece to be welded, and a voiding portion, a welding portion and an air blowing portion connected to the receiving space; the air blowing portion is connected to the voiding portion and / or the welding portion; the voiding portion and the welding portion are respectively arranged corresponding to the inner and outer sides of a location to be welded of the workpiece to be welded.

[0006] In some embodiments of the welding jig, the clamping mechanism includes a fixing member and a pressure assembly, the pressure assembly is spaced apart from the fixing member to form the accommodating space, the pressure assembly can approach or move away from the fixing member, and is used to clamp or release the inner and outer sides of the workpiece to be welded.

[0007] In some embodiments of the welding jig, the air avoidance portion includes an air avoidance groove provided on the fixing member; the welding portion includes a weld provided on the pressure-applying assembly; and the blowing portion includes an air blowing hole connected to the air avoidance groove and / or the weld.

[0008] In some embodiments of the welding jig, the pressure assembly includes a clamping plate and a plurality of first pressure modules, each of the first pressure modules includes a first driving member and a first pressure plate, the first driving member is installed on the clamping plate, the output end of the first driving member is connected to the first pressure plate, and the first driving member is used to drive the first pressure plate to approach or move away from the side wall of the fixing member so as to enable the side edge of the workpiece to be welded to be close to the side wall of the fixing member.

[0009] In some embodiments of the welding jig, the pressure assembly also includes a second pressure module, the second pressure module includes a second driving member and a second pressure plate, the second driving member is installed on the clamping plate, the output end of the second driving member is connected to the second pressure plate, and the second driving member is used to drive the second pressure plate to move closer to or away from the side of the fixing member relative to the clamping plate.

[0010] In some embodiments of the welding jig, the second pressure module further includes a pin rod and an elastic member, the pin rod passes through the clamping plate and is connected to the second pressure plate, the elastic member is sleeved on the pin rod, one end of the elastic member is connected to the second pressure plate, and the other end is connected to the clamping plate.

[0011] In some embodiments of the welding jig, the number of the pressure assemblies is two, the fixing member is disposed between the two pressure assemblies, and the cooperation between each of the pressure assemblies and the fixing member can clamp the workpiece to be welded.

[0012] In some embodiments of the welding jig, a side wall of the fixing member is provided with a notch.

[0013] In some embodiments of the welding jig, the welding jig further includes a driving mechanism, the clamping mechanism further includes a connecting piece, the fixing piece and the pressure-applying assembly are both connected to the connecting plate, and a plurality of the welding parts are provided on the clamping mechanism; the output end of the driving mechanism is connected to the connecting plate, and the driving mechanism is used to drive the connecting plate to rotate so as to enable each of the welding parts to rotate to a preset position.

[0014] In order to solve the above technical problems, the second technical solution adopted by the utility model is:

[0015] A welding device comprises a welding mechanism and the welding jig described in the above embodiment, wherein the welding mechanism is used for welding a workpiece to be welded on the welding jig.

[0016] Implementing the embodiments of the present utility model will have at least the following beneficial effects:

[0017] The above-mentioned welding jig is applied to welding equipment, which can make itself and the welding equipment have the technical effect of good welding quality. Specifically, the welding jig of the utility model is provided with a blowing part, and the blowing part can be connected with the air avoidance part and / or the welding part, so that protective gas can be blown to the welding part during the welding process, thereby improving the welding quality and solving the technical problem that the existing welding jig cannot blow protective gas and thus leads to poor welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a welding jig in one embodiment;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the clamping mechanism;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the fixing parts;

[0022] Figure 4 FIG. 1 is a schematic diagram of a driving mechanism in an embodiment.

[0023] in:

[0024] 1. Clamping mechanism; 11. Connecting member; 12. Fixing member; 121. Blowing hole; 122. Notch; 123. Air avoidance groove; 13. Pressing assembly; 131. Clamping plate; 132. First pressing module; 1321. First driving member; 1322. First pressing plate; 133. Second pressing module; 1331. Second driving member; 1332. Second pressing plate; 1333. Pin rod; 1334. Elastic member; 1335. Linear bearing; 14. Welding seam;

[0025] 2. Driving mechanism; 21. Servo motor; 22. Planetary reducer; 23. Support seat; 24. Hollow rotating platform; 3. Workpiece to be welded. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] like Figure 1-4 As shown, in an embodiment of a welding jig, the welding jig includes a clamping mechanism 1, and the clamping mechanism 1 is provided with a receiving space for receiving a workpiece 3 to be welded, and a evacuation portion, a welding portion, and an air blowing portion connected to the receiving space. The air blowing portion is connected to the evacuation portion and / or the welding portion. The evacuation portion and the welding portion are respectively arranged on the inner and outer sides of the welded portion of the workpiece 3 to be welded.

[0030] In this embodiment, a blowing part is provided on the welding jig, and the blowing part can be connected to the air-shielding part and / or the welding part, so that a shielding gas can be blown toward the welding part during the welding process, thereby improving the welding quality and solving the technical problem that the existing welding jig cannot blow shielding gas, resulting in poor welding quality.

[0031] In an embodiment of a welding jig, the clamping mechanism 1 includes a fixing member 12 and a pressure assembly 13. The pressure assembly 13 is spaced apart from the fixing member 12 to form the accommodating space. The pressure assembly 13 can approach or move away from the fixing member 12 and is used to clamp or release the inner and outer sides of the workpiece 3 to be welded.

[0032] In this embodiment, the receiving space is mainly formed by the interval between the fixing member 12 and the pressure component 13. The staff can put the workpiece 3 to be welded between the fixing member 12 and the pressure component 13, and then the pressure component 13 is close to the fixing member 12 to press the workpiece to be welded. It should be noted that the pressure component 13 close to the fixing member 12 can be a part of the pressure component 13 close to the fixing member 12.

[0033] In one embodiment of a welding jig, Figure 2 and 3 As shown, the air-avoiding portion includes an air-avoiding groove 123 provided on the fixing member 12. The welding portion includes a welding seam 14 provided on the pressure-applying assembly 13. The air-blowing portion includes an air-blowing hole 121 communicating with the air-avoiding groove 123 and / or the welding seam 14.

[0034] Specifically, the air blowing hole 121 may be arranged through the fixing member 12 , and the air avoiding groove 123 is connected with the air blowing hole 121 by opening a connecting hole at the bottom of the groove, thereby realizing the connection between the air avoiding groove 123 and the air blowing hole 121 .

[0035] Preferably, under the clamping of the pressure-applying component 13 and the fixing member 12, the workpiece 3 to be welded is connected to the outside world only at the position of the weld 14, and other positions can be clamped and fixed. This can not only meet the welding requirements, but also help to improve the clamping performance and reduce the welding deformation of the workpiece 3 to be welded during the welding process, thereby improving the welding quality.

[0036] In an embodiment of a welding jig, the pressure assembly 13 includes a clamping plate 131 and a plurality of first pressure modules 132, each first pressure module 132 includes a first driving member 1321 and a first pressure plate 1322, the first driving member 1321 is installed on the clamping plate 131, the output end of the first driving member 1321 is connected to the first pressure plate 1322, and the first driving member 1321 is used to drive the first pressure plate 1322 to approach or move away from the side wall of the fixing member 12.

[0037] In this embodiment, specifically, the first driving member 1321 can be a linear driving member such as a cylinder or an oil cylinder, and the first pressure plate 1322 can be a rectangular plate-like structure. The first driving member 1321 can drive the first pressure plate 1322 to move linearly, so that the first pressure plate 1322 can be close to or away from the side wall of the fixing member 12, so that the short sides of the L-shaped workpiece 3 to be welded and the U-shaped workpiece 3 to be welded can be conveniently placed close to the side wall of the fixing member 12. If the two relative pressure components 13 are operated in this way, the short sides of the two workpieces 3 to be welded can be aligned, thereby preventing the two workpieces 3 to be welded from having a height difference at the welding point, and improving the welding quality.

[0038] In addition, in this embodiment, the blowing hole 121 can also be set on the first pressing plate 1322. Combined with the previous embodiment, the blowing hole 121 can be set on both the fixing member 12 and the first pressing plate 1322 of the pressure applying assembly 13.

[0039] Specifically, Figure 1-2 As shown, two first pressure modules 132 can be set on a pressure component 13. In this solution, the driving directions of the two first pressure modules 132 are parallel, so that both end sides of a U-shaped workpiece 3 to be welded can be pressed against the side wall of the fixing member 12. In this solution, the extension length of the first pressure plate 1322 can press multiple workpieces 3 to be welded at one time, and multiple groups of first pressure modules 132 can be set, two first pressure modules 132 are a group, arranged in a matrix, and one first pressure module 132 only corresponds to pressuring one workpiece 3 to be welded.

[0040] In an embodiment of a welding jig, the pressure assembly 13 also includes a second pressure module 133, the second pressure module 133 includes a second driving member 1331 and a second pressure plate 1332, the second driving member 1331 is installed on the clamping plate 131, the output end of the second driving member 1331 is connected to the second pressure plate 1332, and the second driving member 1331 is used to drive the second pressure plate 1332 to move closer to or away from the side of the fixing member 12 relative to the clamping plate 131.

[0041] In this embodiment, unlike the first pressure module 132, the second pressure module 133 is pressed on the long side of the workpiece 3 to be welded. The two opposite second pressure modules 133 respectively apply pressure to the workpiece 3 to be welded. How to further adjust the relative positions of the workpieces 3 to be welded so that the two workpieces 3 to be welded are close to each other and abut against each other, further reduce manual participation, and improve the level of automated welding.

[0042] Specifically, the second driving member 1331 may also be a linear driving member such as a cylinder or an oil cylinder.

[0043] Preferably, the above embodiment is combined with the attached Figure 1-2 As shown, the first driving member 1321 is arranged in the middle of the clamping plate 131, and the second driving member 1331 is arranged at the end of the clamping plate 131. The first driving member 1321 can be connected to the first pressure plate 1322 through a plate with an avoidance hole, and the second driving member 1331 passes through the avoidance hole to avoid interference and collision between the first driving member 1321 and the second driving member 1331.

[0044] In combination with the previous embodiment, the number of the second pressure modules 133 can also be the same as that of the first pressure modules 132, that is, one or more second pressure modules 133 are respectively provided at both ends of a pressure mechanism. When there are multiple sets of second pressure modules 133, both ends of the workpiece 3 to be welded can be back-pressed at the same time, which can solve the problem of the same welding position.

[0045] In an embodiment of a welding jig, the second pressure module 133 also includes a pin rod 1333 and an elastic member 1334. The pin rod 1333 passes through the clamping plate 131 and is connected to the second pressure plate 1332. The elastic member 1334 is sleeved on the pin rod 1333. One end of the elastic member 1334 is connected to the second pressure plate 1332, and the other end is connected to the clamping plate 131.

[0046] In this embodiment, the axial direction of the pin rod 1333 is parallel to the driving direction of the second driving member 1331. The pin rod 1333 can guide the movement of the second pressure plate 1332 and maintain the stability of the movement of the second pressure plate 1332. The elastic member 1334 can be a spring. By adopting the elastic member 1334, the workpiece 3 to be welded can be elastically pressed, so that the force on the surface of the workpiece 3 to be welded is balanced, which is conducive to the workpiece 3 to be welded being completely flattened.

[0047] In an embodiment of the welding jig, the second pressure module 133 further includes a linear bearing 1335, which is mounted on the side of the clamping plate 131 away from the fixing member 12, and the linear bearing 1335 is sleeved on the pin 1333. In this embodiment, by providing the linear bearing 1335, a more stable linear guide can be provided, further improving the accuracy of the welding jig.

[0048] In an embodiment of a welding fixture, there are two pressure assemblies 13 , and the fixing member 12 is disposed between the two pressure assemblies 13 . The cooperation between each pressure assembly 13 and the fixing member 12 can clamp the workpiece 3 to be welded.

[0049] In this embodiment, a structural composition mode of the clamping mechanism 1 is applicable to various shapes of workpieces 3 to be welded, such as two L-shaped workpieces 3 to be welded forming a U-shaped workpiece, or two U-shaped workpieces 3 to be welded forming a ring-shaped workpiece. In this embodiment, two relative pressure components 13 are provided in combination with a fixing member 12 located between the two pressure components 13, so that a plurality of workpieces 3 to be welded can be clamped and fixed to facilitate welding.

[0050] Here, in combination with the previous embodiment, it can be understood that the place to be welded can be formed by abutting or overlapping two workpieces 3 to be welded, and the abutting or overlapping place of the two workpieces 3 to be welded is the place to be welded. In addition, the two first pressing plates 1322 of the two pressure applying assemblies 13 are arranged opposite to each other at intervals to form a weld 14.

[0051] In addition, in combination with the previous embodiment, the space between the two first pressing plates 1322 that forms the weld 14 in the two pressure components 13 can be chamfered at the end of each first pressing plate 1322 that is close to the other pressure component 13 and is opposite to the first pressing plate 1322, so as to avoid collision with the welding mechanism. In addition, by providing the weld 14 to correspond to the welded part, deformation caused by thermal stress during welding can be prevented.

[0052] Specifically, the air-avoiding groove 123 is provided at two opposite ends of the fixing member 12 , and the axial direction of the air-avoiding groove 121 is parallel to the extending direction of the bottom of the air-avoiding groove 123 and penetrates the fixing member 12 .

[0053] In an embodiment of the welding fixture, a notch 122 is formed on the side wall of the fixing member 12 .

[0054] In this embodiment, the fixing member 12 is U-shaped after the notch 122 is opened. The workpiece 3 to be welded crosses the notch 122. The notch 122 forms a hand-free position, which can facilitate the staff to manually put the workpiece 3 to be welded into the corresponding position in the welding fixture. In addition, a hollow structure can be set on the fixing member 12. The notch 122 and the hollow structure can reduce the weight and material usage of the fixing member 12, thereby facilitating use and reducing costs.

[0055] In an embodiment of a welding jig, the welding jig also includes a driving mechanism 2, the clamping mechanism 1 also includes a connecting member 11, the fixing member 12 and the pressure-applying assembly 13 are both connected to the connecting member 11, the output end of the driving mechanism 2 is connected to the connecting member 11, and a plurality of welding parts are provided on the clamping mechanism 1. The driving mechanism 2 is used to drive the connecting member 11 to rotate so as to enable each weld 14 to rotate to a preset position.

[0056] In this embodiment, by setting up a driving mechanism 2, manual participation can be further reduced and the level of automation can be improved. Under the drive of the driving mechanism 2, the welding jig can rotate, so that each welded point can be relative to the welding mechanism, which is convenient for the welding mechanism to quickly complete the welding of multiple welded points on the same workpiece 3 to be welded, and there is no need to perform multiple assembly and disassembly operations on the workpiece 3 to be welded, thereby avoiding the occurrence of deviation in each welding point, which is beneficial to improving the welding quality and welding efficiency.

[0057] In combination with the above embodiments, the connecting member 11 and the fixing member 12 can both be plate-shaped structural members, and the connecting member 11 and the fixing member 12 are preferably arranged vertically. In addition, the notch 122 is provided on a side of the fixing member 12 away from the connecting member 11 .

[0058] In an embodiment of the welding fixture, the driving mechanism 2 includes a servo motor 21 and a planetary reducer 22 , and the output end of the servo motor 21 is connected to the planetary reducer 22 , and is connected to the clamping mechanism 1 through the planetary reducer 22 .

[0059] In this embodiment, the servo motor 21 is used to facilitate control and has the advantage of high precision, and the planetary reducer 22 can better rotate the clamping mechanism 1. Specifically, the driving mechanism 2 also includes a support seat 23 and a hollow rotating platform 24. The support seat 23 is T-shaped and inverted, and a hole is opened on it for the hollow rotating platform 24 to be clamped. The hollow rotating platform 24 is connected to the output end of the planetary reducer 22 and is used to drive the clamping mechanism 1 to rotate.

[0060] The utility model also relates to a welding device, comprising a welding mechanism and the welding fixture in the foregoing embodiment, wherein the welding mechanism is used for welding a workpiece 3 to be welded on the welding fixture.

[0061] By adopting the welding fixture in the above embodiment, manual intervention can be reduced, and welding can be automatically completed by rotating the clamping mechanism 1 during the welding process. In addition, a blowing hole 121 is provided to blow protective gas, thereby improving welding quality.

[0062] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A welding jig, characterized in that: The welding jig comprises a clamping mechanism (1), the clamping mechanism (1) being provided with a receiving space for receiving a workpiece (3) to be welded, and a evacuation portion, a welding portion and an air blowing portion connected to the receiving space; the air blowing portion being connected to the evacuation portion and / or the welding portion; the evacuation portion and the welding portion being arranged corresponding to the inner and outer sides of a location to be welded of the workpiece (3) to be welded, respectively.

2. The welding jig according to claim 1, characterized in that: The clamping mechanism (1) comprises a fixing member (12) and a pressure component (13), wherein the pressure component (13) is spaced apart from the fixing member (12) to form the receiving space, and the pressure component (13) can be moved close to or away from the fixing member (12) and is used to clamp or release the inner and outer sides of the workpiece (3) to be welded.

3. The welding jig according to claim 2, characterized in that: The air avoidance portion comprises an air avoidance groove (123) provided on the fixing member (12); the welding portion comprises a welding seam (14) provided on the pressure-applying assembly (13); and the air blowing portion comprises an air blowing hole (121) connected to the air avoidance groove (123) and / or the welding seam (14).

4. The welding jig according to claim 2, characterized in that: The pressure-applying assembly (13) includes a clamping plate (131) and a plurality of first pressure-applying modules (132), each of the first pressure-applying modules (132) includes a first driving member (1321) and a first pressing plate (1322), the first driving member (1321) is mounted on the clamping plate (131), the output end of the first driving member (1321) is connected to the first pressing plate (1322), and the first driving member (1321) is used to drive the first pressing plate (1322) to move closer to or away from the side wall of the fixing member (12).

5. The welding jig according to claim 4, characterized in that: The pressure-applying assembly (13) also includes a second pressure-applying module (133), the second pressure-applying module (133) includes a second driving member (1331) and a second pressure plate (1332), the second driving member (1331) is installed on the clamping plate (131), the output end of the second driving member (1331) is connected to the second pressure plate (1332), and the second driving member (1331) is used to drive the second pressure plate (1332) to move closer to or away from the side of the fixing member (12) relative to the clamping plate (131).

6. The welding jig according to claim 5, characterized in that: The second pressure-applying module (133) further includes a pin rod (1333) and an elastic member (1334), wherein the pin rod (1333) passes through the clamping plate (131) and is connected to the second pressure plate (1332), and the elastic member (1334) is sleeved on the pin rod (1333), and one end of the elastic member (1334) is connected to the second pressure plate (1332), and the other end is connected to the clamping plate (131).

7. The welding jig according to any one of claims 3 to 6, characterized in that: The number of the pressure components (13) is two, and the fixing member (12) is arranged between the two pressure components (13). The cooperation between each pressure component (13) and the fixing member (12) can clamp the workpiece (3) to be welded.

8. The welding jig according to claim 3, characterized in that: A notch (122) is formed on the side wall of the fixing member (12).

9. The welding jig according to claim 2, characterized in that: The welding jig further comprises a driving mechanism (2); the clamping mechanism (1) further comprises a connecting member (11); the fixing member (12) and the pressure-applying assembly (13) are both connected to the connecting member (11); and a plurality of welding portions are provided on the clamping mechanism (1); an output end of the driving mechanism (2) is connected to the connecting member (11); the driving mechanism (2) is used to drive the connecting member (11) to rotate so as to enable each welding portion to rotate to a preset position.

10. A welding device, characterized in that: The welding equipment comprises a welding mechanism and a welding jig as claimed in any one of claims 1 to 9, wherein the welding mechanism is used for welding a workpiece (3) to be welded on the welding jig.

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