A welding tool for machining a thin-walled workpiece

Abstract

This utility model discloses a welding fixture for processing thin-walled workpieces, including a base with a narrow groove in the middle. A pair of workpieces are clamped on the surface of the base, with the edges of the workpieces extending into the groove opening. A channel is provided inside the base, and a fan is connected to the side of the base. The inlet of the fan is connected to the bottom of the groove via a clamping part, and the outlet is connected to an exhaust pipe. Welding is performed at the groove opening because of the narrow groove in the middle of the base, with the edges of the workpieces extending into the groove opening. When the fan is activated, the fumes at the groove opening pass through the groove, the channel, the fan, and the exhaust pipe, and are output to an air purification device or the outside environment. This reduces fumes in the welding workshop and lowers the risk of health hazards caused by fumes.

Description

Technical Field

[0001] This utility model relates to a welding fixture for processing thin-walled workpieces, belonging to the field of welding auxiliary devices. Background Technology

[0002] In production, welding workpieces on thin plates is frequently required. Welding generates a large amount of smoke, which permeates the welding area. If this heat cannot be dissipated in time, it leads to environmental pollution and harms the health of those nearby. The health hazards of welding fumes include respiratory damage, eye irritation and damage, skin damage, nervous system effects, and immune system suppression. Generally, people take protective measures, such as wearing protective equipment and undergoing regular medical checkups. However, wearing protective equipment only prevents direct contact between the fumes and the body. Without timely fume removal, the risk of fume-related harm remains. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a welding fixture for processing thin-walled workpieces.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a welding fixture for processing thin-walled workpieces, including a base, a narrow groove in the middle of the base, a pair of workpieces clamped on the surface of the base, the edges of the pair of workpieces extending into the groove opening; a channel is provided inside the base, a fan is connected to the side of the base, the inlet of the fan is connected to the bottom of the groove through a clamping part, and an exhaust pipe is connected to the outlet.

[0005] The present invention is further configured such that: a plurality of magnets are embedded on the surface of the base, the workpiece is made of iron, and the magnets attract the workpiece.

[0006] The present invention is further configured such that: a pressing part is provided on the upper surface of the base, and the pressing part applies downward pressure on the upper surface of the workpiece.

[0007] The present invention is further configured such that: the pressing part includes a hinge column, a rotating shaft, a torsion spring, a rocker arm, a pressure plate, and an adjusting bolt; the hinge column is fixedly connected to the base; the hinge column is hinged to one end of the rocker arm via the rotating shaft; the torsion spring is sleeved on the rotating shaft to drive the rocker arm to rotate; the other end of the rocker arm is connected to the pressure plate; the center line of the pressure plate is aligned with the edge of the groove; a threaded hole is provided on the left half of the plate, and an adjusting bolt is screwed into the threaded hole; the adjusting bolt is located above the groove opening.

[0008] A further feature of this invention is that the swing arm is in the shape of an arc.

[0009] The present invention is further configured such that: the upper surface of the base is provided with a plurality of positioning parts, and the other edge of the workpiece abuts against the positioning parts.

[0010] The present invention is further configured such that: the upper surface of the base is provided with a plurality of clearance grooves; the positioning part includes a positioning screw, a handwheel, a support base, a nut and a push plate, the support base is fixedly connected to the upper surface of the base, the nut is fixedly connected to the support base, the middle part of the positioning screw is screwed to the nut, the handwheel is connected to one end of the positioning screw, and the push plate is connected to the other end of the positioning screw; the lower part of the push plate is in the clearance groove, and the upper part abuts against the other edge of the workpiece.

[0011] This utility model also provides a welding fixture for processing thin-walled workpieces, including a base. The base has a narrow groove in the middle, and several magnets are embedded on the surface of the base. The magnets attract and connect to workpieces made of iron. A hinge post is provided on the upper surface of the base. A rotating shaft is connected to the top of the hinge post. A rocker arm is hinged to the rotating shaft. A torsion spring is sleeved on the rotating shaft to drive the rocker arm to rotate. The other end of the rocker arm is connected to a pressure plate. The center line of the pressure plate is aligned with the edge of the groove. A threaded hole is provided on the left half of the plate, and an adjusting bolt is screwed into the threaded hole. The adjusting bolt is located above the opening of the groove.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: A narrow groove is provided in the middle of the base, and the edges of a pair of workpieces extend into the groove opening; welding is then performed at the groove opening. The base has an internal channel, and a fan is connected to the side of the base. The fan inlet is connected to the bottom of the groove via a clamping part, and the outlet is connected to an exhaust pipe. When the fan is started, the smoke at the groove opening passes through the groove, the channel, the fan, and the exhaust pipe, and is output to air purification equipment or the outside environment. This reduces the amount of smoke in the welding workshop and lowers the risk of health damage caused by smoke. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a welding fixture for machining thin-walled workpieces according to a preferred embodiment of the present invention;

[0014] Figure 2 for Figure 1 Schematic diagram of the central positioning part;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of the middle clamping part.

[0016] In the diagram: 1. Base; 2. Groove; 3. Workpiece; 4. Magnet; 5. Positioning part; 6. Pressing part; 7. Fan; 8. Exhaust pipe; 9. Channel; 51. Positioning screw; 52. Handwheel; 53. Support base; 54. Nut; 55. Clearance groove; 56. Push plate; 61. Hinge column; 62. Rotating shaft; 63. Torsion spring; 64. Swing rod; 65. Pressure plate; 66. Adjusting bolt; 67. Threaded hole. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] Example 1: See Appendix Figures 1-3 As shown, a welding fixture for processing thin-walled workpieces in this embodiment includes a base 1. A narrow groove 2 is provided in the middle of the base 1. A pair of workpieces 3 are clamped on the surface of the base 1, and the edges of the pair of workpieces 3 extend into the groove opening of the groove 2. A channel 9 is provided inside the base 1. A fan 7 is connected to the side of the base 1. The inlet of the fan 7 is connected to the bottom of the groove 2 through a clamping part 6, and the outlet is connected to an exhaust pipe 8.

[0019] A narrow groove 2 is provided in the middle of the base 1, and the edges of a pair of workpieces 3 extend into the groove 2; welding is performed at the groove 2 opening. A channel 9 is provided inside the base 1, and a fan 7 is connected to the side of the base 1. The inlet of the fan 7 is connected to the bottom of the groove 2 via a clamping part 6, and the outlet is connected to an exhaust pipe 8. When the fan 7 is started, the smoke at the groove 2 opening passes through the groove 2, and is output to air purification equipment or the outside through the channel 9, the fan 7, and the exhaust pipe 8. This reduces the amount of smoke in the welding workshop, lowering the risk of health hazards caused by smoke. Furthermore, the airflow generated by the fan carries away the heat generated by the welded workpieces 3, preventing the temperature of the base 1 and workpieces 3 from rising further. Maintaining a suitable temperature is beneficial for continuous welding operations.

[0020] To facilitate clamping of workpieces 3 and align the edges of a pair of workpieces 3 within the groove of the recess 2, this invention is further configured such that: a plurality of magnets 4 are embedded in the surface of the base 1, and the workpieces 3 are made of iron; the magnets 4 attract the workpieces 3. A clamping part 6 is provided on the upper surface of the base 1, applying downward pressure to the upper surface of the workpieces 3. By applying force to the workpieces 3 through the magnets 4 and the clamping part 6, the workpieces 3 are clamped onto the base 1.

[0021] The present invention is further configured such that: the pressing part 6 includes a hinge post 61, a rotating shaft 62, a torsion spring 63, a rocker arm 64, a pressure plate 65, and an adjusting bolt 66. The hinge post 61 is fixedly connected to the base 1. The hinge post 61 is hinged to one end of the rocker arm 64 through the rotating shaft 62. The torsion spring 63 is sleeved on the rotating shaft 62, driving the rocker arm 64 to rotate. The other end of the rocker arm 64 is connected to the pressure plate 65. The center line of the pressure plate 65 is aligned with the edge of the groove 2. A threaded hole 67 is provided on the left half, and the adjusting bolt 66 is screwed into the threaded hole 67. The adjusting bolt 66 is located above the groove opening of the groove 2. The rocker arm 64 is arc-shaped.

[0022] Holding the lever 64, with the pivot 62 as the axis, the lever 64 rotates on the hinge column 61, thus unfolding and exposing the upper surface of the base 1, so that the workpiece 3 can be placed on the upper surface of the base 1. After releasing the lever, the torsion spring 63 drives the lever 64 to rotate in the opposite direction until the pressure plate 65 presses on the workpiece 3. The right half of the torsion spring 63 and the base 1 together clamp the workpiece 3. By rotating the adjusting bolt 66, the lower end of the adjusting bolt 66 abuts against the workpiece 3, slightly bending the workpiece 3 and pressing down its edges until the edges of a pair of workpieces 3 are aligned.

[0023] To position the workpiece 3 and prevent it from shifting, this invention further comprises: a plurality of positioning parts 5 on the upper surface of the base 1, with the other edge of the workpiece 3 abutting against the positioning parts 5. The upper surface of the base 1 is provided with a plurality of clearance grooves 55; each positioning part 5 includes a positioning screw 51, a handwheel 52, a support base 53, a nut 54, and a push plate 56. The support base 53 is fixedly connected to the upper surface of the base 1, the nut 54 is fixedly connected to the support base 53, the middle part of the positioning screw 51 is screwed to the nut 54, the handwheel 52 is connected to one end of the positioning screw 51, and the push plate 56 is connected to the other end of the positioning screw 51; the lower part of the push plate 56 is in the clearance groove 55, and the upper part abuts against the other edge of the workpiece 3. By rotating the handwheel 52, the positioning screw 51 advances axially in the nut 54, pushing the push plate 56 to abut against the edge of the workpiece 3, thus limiting the position of the workpiece 3. Preferably, the push plate 56 is a circular plate, fixedly connected to the positioning screw 51.

[0024] Example 2: See Appendix Figures 1-3As shown, to facilitate clamping and fixing thin-walled workpieces, this utility model also provides a welding fixture for processing thin-walled workpieces, including a base 1. A narrow groove 2 is provided in the middle of the base 1. Several magnets 4 are embedded in the surface of the base 1, attracting and connecting workpieces 3 made of iron. A hinge post 61 is provided on the upper surface of the base 1. A rotating shaft 62 is connected to the top of the hinge post 61. A rocker arm 64 is hinged to the rotating shaft 62. A torsion spring 63 is sleeved on the rotating shaft 62, driving the rocker arm 64 to rotate. A pressure plate 65 is connected to the other end of the rocker arm 64. The centerline of the pressure plate 65 is aligned with the edge of the groove 2. A threaded hole 67 is provided on the left half of the pressure plate 65, and an adjusting bolt 66 is screwed into the threaded hole 67. The adjusting bolt 66 is located above the opening of the groove 2. The usage method of Embodiment 2 is the same as that of Embodiment 1. First, hold the lever 64 and rotate it on the hinge post 61 around the pivot 62, thus unfolding it to expose the upper surface of the base 1, facilitating the placement of the workpiece 3 on the upper surface of the base 1. The magnet 4 attracts the workpiece 3. Upon release, the torsion spring 63 drives the lever 64 to rotate in the opposite direction until the pressure plate 65 presses onto the workpiece 3. The right half of the torsion spring 63, together with the base 1, clamps the workpiece 3. By rotating the adjusting bolt 66, the lower end of the adjusting bolt 66 abuts against the workpiece 3, slightly bending the workpiece 3 and pressing down its edges until the edges of a pair of workpieces 3 are aligned. Finally, welding is performed.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A welding fixture for machining thin-walled workpieces, comprising a base (1), characterized in that, The base (1) has a narrow groove (2) in the middle. A pair of workpieces (3) are clamped on the surface of the base (1). The edges of the pair of workpieces (3) extend into the groove (2). The base (1) has a channel (9) inside. A fan (7) is connected to the side of the base (1). The inlet of the fan (7) is connected to the bottom of the groove (2) through the pressing part (6). The outlet is connected to an exhaust pipe (8).

2. The welding fixture for machining thin-walled workpieces according to claim 1, characterized in that, The base (1) has several magnets (4) embedded on its surface. The workpiece (3) is made of iron. The magnets (4) attract the workpiece (3).

3. The welding fixture for machining thin-walled workpieces according to claim 1, characterized in that, The upper surface of the base (1) is provided with a pressing part (6), which applies downward pressure to the upper surface of the workpiece (3).

4. The welding fixture for machining thin-walled workpieces according to claim 3, characterized in that, The clamping part (6) includes a hinge column (61), a rotating shaft (62), a torsion spring (63), a rocker arm (64), a pressure plate (65), and an adjusting bolt (66). The hinge column (61) is fixedly connected to the base (1). The hinge column (61) is hinged to one end of the rocker arm (64) through the rotating shaft (62). The torsion spring (63) is sleeved on the rotating shaft (62) to drive the rocker arm (64) to rotate. The other end of the rocker arm (64) is connected to the pressure plate (65). The center line of the pressure plate (65) is aligned with the edge of the groove (2). A threaded hole (67) is provided on the left half. The adjusting bolt (66) is screwed into the threaded hole (67). The adjusting bolt (66) is located above the groove opening of the groove (2).

5. The welding fixture for machining thin-walled workpieces according to claim 4, characterized in that, The swing arm (64) is in the shape of an arc.

6. The welding fixture for machining thin-walled workpieces according to claim 1, characterized in that, The upper surface of the base (1) is also provided with several positioning parts (5), and the other edge of the workpiece (3) abuts against the positioning part (5).

7. The welding fixture for machining thin-walled workpieces according to claim 6, characterized in that, The upper surface of the base (1) is provided with several clearance grooves (55); the positioning part (5) includes a positioning screw (51), a handwheel (52), a support seat (53), a nut (54) and a push plate (56). The support seat (53) is fixedly connected to the upper surface of the base (1), the nut (54) is fixedly connected to the support seat (53), the middle part of the positioning screw (51) is screwed to the nut (54), the handwheel (52) is connected to one end of the positioning screw (51), and the push plate (56) is connected to the other end of the positioning screw (51). The lower part of the push plate (56) is in the clearance groove (55), and the upper part abuts against the other edge of the workpiece (3).

8. A welding fixture for machining thin-walled workpieces, comprising a base (1), characterized in that, The base (1) has a narrow groove (2) in the middle. Several magnets (4) are embedded on the surface of the base (1). The magnets (4) attract and connect to the workpiece (3) made of iron. The upper surface of the base (1) has a hinge column (61). The top of the hinge column (61) is connected to a rotating shaft (62). A rocker arm (64) is hinged to the rotating shaft (62). A torsion spring (63) is sleeved on the rotating shaft (62) to drive the rocker arm (64) to rotate. The other end of the rocker arm (64) is connected to a pressure plate (65). The center line of the pressure plate (65) is aligned with the edge of the groove (2). A threaded hole (67) is provided on the left half. An adjusting bolt (66) is screwed into the threaded hole (67). The adjusting bolt (66) is located above the groove opening of the groove (2).

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