Galvanized sheet stud welding back supporting tool

Abstract

The utility model provides a galvanized sheet stud welding back supporting tool, and relates to the technical field of tool clamps. The device comprises a cushion block and a base, the base is fixed to an external structure, the cushion block is connected to the base, one side of the back of a galvanized sheet welding area is attached to the side, away from the base, of the cushion block, and a powder storage hole is formed in the side, away from the base, of the cushion block. The zinc coating and the base metal are partially melted, generated welding dust can enter the powder storage holes, the welding dust formed every time is temporarily stored through the powder storage holes, the welding dust is prevented from remaining on the surface of the cushion block, subsequent stud welding is prevented from being affected, the reject ratio of stud welding is reduced, and the working efficiency is effectively guaranteed. And after a certain number of operation times, deposited dust in the dust storage holes can be regularly and intensively cleaned, manual cleaning is not needed after each time of operation is finished, and the working intensity of operators is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a back support tooling for stud welding of galvanized thin plates. Background Art

[0002] Stud welding is widely used in automobile body-in-white welding. Since the strength of galvanized sheet is low and the impact force of stud welding is large, in order to prevent the galvanized sheet from deforming and ensure the welding quality, a support fixture is usually provided, and the pad on the support fixture is directly fitted to the back side of the galvanized sheet welding area.

[0003] The applicant has found that there are at least the following technical problems in the prior art: for galvanized thin plates, due to the presence of the galvanized layer, it is necessary to increase the heat input of welding to melt and remove the coating to ensure welding strength. When the heat input of stud welding is large, the back side of the welding area of ​​the galvanized thin plate is heated, the galvanized layer and the parent material are partially melted, and welding dust is generated, which adheres to the pad of the supporting tooling. When welding the next machine, the galvanized thin plate parent material cannot be flat against the pad due to the presence of dust, and poor welding is easily generated during stud welding, which requires repair welding and low efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a galvanized sheet metal stud welding back support tooling to solve the technical problem that the back side of the galvanized sheet metal welding area is heated in the prior art, the galvanized layer and the base material are partially melted, welding dust is generated, and adheres to the pad of the support tooling. When welding the next machine, poor welding is easily generated during stud welding, and repair welding is required, which is inefficient. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the utility model are described in detail below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A back support tool for stud welding of galvanized thin plates comprises a pad and a base, wherein the pad is connected to the base, the back side of the welding area of ​​the galvanized thin plate is in contact with the side of the pad away from the base, and a powder storage hole is provided on the side of the pad away from the base.

[0007] Preferably, it also includes a blowing unit, the cushion block is provided with a blowing hole connected to the powder storage hole, the blowing hole is connected to the blowing unit, and the gas blown out by the blowing unit can blow out the dust deposited in the powder storage hole after passing through the blowing hole.

[0008] Preferably, the air blowing unit comprises an air blowing pipe and an air supply device, and two ends of the air blowing pipe are respectively connected to the air blowing hole and the air supply device.

[0009] Preferably, it also includes a connecting bolt, and the base is provided with a through hole for the rod of the connecting bolt to pass through. After the rod of the connecting bolt passes through the base, it is connected to the side of the cushion block away from the galvanized sheet metal, and the cushion block and the connecting bolt can move synchronously relative to the through hole.

[0010] Preferably, it further comprises an elastic unit, wherein the elastic unit is sleeved on the outside of the rod portion of the connecting bolt, and two ends of the elastic unit are in contact with the cushion block and the base respectively.

[0011] Preferably, the elastic unit is a spring.

[0012] Preferably, a limiting unit is further included, wherein the limiting unit is connected to the base, and the limiting unit can limit the relative rotation of the cushion block.

[0013] Preferably, the limiting unit comprises a limiting disc and a limiting bolt, and the limiting disc is connected to the base via the limiting bolt.

[0014] The beneficial effects of the utility model are as follows: the back support tooling for stud welding of galvanized sheet metal comprises a pad and a base, the base is fixed on the external structure, the pad is connected to the base, the back side of the welding area of ​​the galvanized sheet metal and the side of the pad away from the base are in contact with each other, and a powder storage hole is provided on the side of the pad away from the base;

[0015] By providing a powder storage hole, when the heat input of stud welding is large, the back side of the welding area of ​​the galvanized sheet is heated, the galvanized layer and the base material are partially melted, and the generated welding dust can enter the powder storage hole, and the powder storage hole temporarily stores the welding dust formed each time, so as to avoid the welding dust remaining on the surface of the pad, avoid affecting the subsequent stud welding, reduce the defective rate of stud welding, and effectively ensure work efficiency;

[0016] After a certain number of operations, the deposited dust inside the powder storage holes can be cleaned regularly and centrally, without the need for manual cleaning after each operation, thus reducing the workload of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2It is the exploded structure diagram of the utility model;

[0020] In the figure, 1 is a cushion block; 11 is a powder storage hole; 12 is an air blowing hole;

[0021] 2. Base;

[0022] 3. Blowing unit; 31. Blowing pipe;

[0023] 4. Connecting bolts;

[0024] 5. Elastic unit;

[0025] 6. Limit unit; 61. Limit disc; 62. Limit bolt. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] Reference Figure 1 to Figure 2The utility model provides a galvanized sheet metal stud welding back support tool, comprising a pad 1 and a base 2, the base 2 is fixed on the external structure, and becomes the fixed foundation of the whole tool, the pad 1 is connected to the base 2, the back side of the galvanized sheet metal welding area is in contact with the side of the pad 1 away from the base 2, and a powder storage hole 11 is provided on the side of the pad 1 away from the base 2;

[0030] By providing the powder storage hole 11, when the heat input of the stud welding is large, the back side of the welding area of ​​the galvanized sheet is heated, the galvanized layer and the base material are partially melted, and the generated welding dust can enter the powder storage hole 11. The powder storage hole 11 temporarily stores the welding dust formed each time, so as to avoid the welding dust remaining on the surface of the pad 1, avoid affecting the subsequent stud welding, reduce the defective rate of the stud welding, and effectively ensure the work efficiency;

[0031] After a certain number of operations, the deposited dust inside the powder storage hole 11 can be cleaned regularly and centrally, without the need for manual cleaning after each operation, thereby reducing the workload of the operator.

[0032] As an optional embodiment, it also includes a blowing unit 3. A blowing hole 12 connected to the powder storage hole 11 is opened on the pad 1. The blowing hole 12 is connected to the blowing unit 3. The blowing unit 3 can blow out gas. After welding a certain number of vehicles, the blowing unit 3 is turned on. The gas blown out by the blowing unit 3 can blow out the dust deposited in the powder storage hole 11 after passing through the blowing hole 12, and the powder storage hole 11 is emptied, thereby avoiding welding dust from remaining on the surface of the pad 1, avoiding affecting the subsequent stud welding, reducing the defective rate of stud welding, and effectively ensuring work efficiency.

[0033] As an optional embodiment, the blowing unit 3 includes a blowing pipe 31 and an air supply device. The two ends of the blowing pipe 31 are respectively connected to the blowing hole 12 and the air supply device. After the air supply device is started, it can supply air to the blowing pipe 31. The gas inside the blowing pipe 31 can enter the blowing hole 12, and after passing through the blowing hole 12, enter the powder storage hole 11, blow out the dust deposited in the powder storage hole 11 and empty the powder storage hole 11. The structure of the air supply device itself is a relatively conventional prior art, so it will not be further described.

[0034] As an optional embodiment, it further includes a connecting bolt 4, and a through hole is opened on the base 2 for the rod of the connecting bolt 4 to pass through. After the rod of the connecting bolt 4 passes through the base 2, it is connected to the side of the cushion block 1 away from the galvanized sheet. The cushion block 1 and the connecting bolt 4 can move synchronously relative to the through hole. The head of the connecting bolt 4 cooperates with the cushion block 1 to play a limiting role, thereby preventing the cushion block 1 from being completely separated from the base 2.

[0035] Preferably, a bolt hole is provided on the side of the cushion block 1 away from the galvanized sheet to form a threaded connection with the connecting bolt 4 .

[0036] As an optional implementation, it also includes an elastic unit 5, which is sleeved on the outside of the rod of the connecting bolt 4, and the two ends of the elastic unit 5 are respectively in contact with the cushion block 1 and the base 2. The elastic unit 5 has good elasticity and can cooperate with the cushion block 1. Through the elastic deformation of the elastic unit 5, the cushion block 1 can adaptively fit tightly with the galvanized sheet metal.

[0037] As an optional implementation, the elastic unit 5 is a spring, which has good elasticity and can cooperate with the cushion block 1. Through the elastic deformation of the spring, the cushion block 1 can be adaptively fitted tightly to the galvanized sheet.

[0038] As an optional implementation, it further includes a limiting unit 6 , which is connected to the base 2 and can limit the relative rotation of the cushion block 1 .

[0039] As an optional implementation, the limiting unit 6 includes a limiting disk 61 and a limiting bolt 62 , and the limiting disk 61 is connected to the base 2 via the limiting bolt 62 .

[0040] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A galvanized sheet metal stud welding back support tool, characterized in that: The invention comprises a pad (1) and a base (2), wherein the pad (1) is connected to the base (2), the back side of the galvanized sheet metal welding area is in contact with the side of the pad (1) away from the base (2), and a powder storage hole (11) is provided on the side of the pad (1) away from the base (2).

2. The galvanized sheet metal stud welding back support tooling according to claim 1, characterized in that: It also comprises an air blowing unit (3), wherein the cushion block (1) is provided with an air blowing hole (12) which is in communication with the powder storage hole (11), the air blowing hole (12) being in communication with the air blowing unit (3), and the gas blown out by the air blowing unit (3) can pass through the air blowing hole (12) and blow out the dust deposited in the powder storage hole (11).

3. The galvanized sheet metal stud welding back support tooling according to claim 2, characterized in that: The air blowing unit (3) comprises an air blowing pipe (31) and an air supply device, and two ends of the air blowing pipe (31) are respectively connected to the air blowing hole (12) and the air supply device.

4. The galvanized sheet metal stud welding back support tooling according to claim 1, characterized in that: It also includes a connecting bolt (4), and the base (2) is provided with a through hole for the rod of the connecting bolt (4) to pass through. After the rod of the connecting bolt (4) passes through the base (2), it is connected to the side of the cushion block (1) away from the galvanized sheet metal, and the cushion block (1) and the connecting bolt (4) can move synchronously relative to the through hole.

5. The galvanized sheet metal stud welding back support tooling according to claim 4, characterized in that: It also comprises an elastic unit (5), wherein the elastic unit (5) is sleeved on the outside of the rod of the connecting bolt (4), and the two ends of the elastic unit (5) are respectively in contact with the cushion block (1) and the base (2).

6. The galvanized sheet metal stud welding back support tooling according to claim 5, characterized in that: The elastic unit (5) is a spring.

7. The galvanized sheet metal stud welding back support tooling according to claim 1, characterized in that: It also comprises a limiting unit (6), wherein the limiting unit (6) is connected to the base (2), and the limiting unit (6) is capable of limiting the relative rotation of the cushion block (1).

8. The galvanized sheet metal stud welding back support tooling according to claim 7, characterized in that: The limiting unit (6) comprises a limiting disc (61) and a limiting bolt (62); the limiting disc (61) is connected to the base (2) via the limiting bolt (62).

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