A welding tool for a defrosting air duct

Abstract

This invention discloses a welding fixture for a defrosting duct, relating to the field of automotive defrosting duct welding technology. It includes a base plate, a mounting sleeve, and a support block. The mounting sleeve is fixedly connected to the base plate, and the support block is detachably inserted into the mounting sleeve. The support block has a locking groove that matches the defrosting duct workpiece. The base plate has a width adjustment mechanism, and a part-removal control mechanism is connected to the width adjustment mechanism. The part-removal control mechanism is equipped with a positioning component for positioning the defrosting duct workpiece. This invention, through the part-removal control mechanism and the positioning component, enables rapid and stable positioning and fixing of the defrosting duct workpiece, preventing displacement of the workpiece during hot riveting welding and affecting the welding effect. Furthermore, the part-removal control mechanism allows for quick and convenient removal of the welded defrosting duct workpiece, and it automatically adapts to changes in the spacing of the positioning component.

Description

Technical Field

[0001] This invention relates to the field of automotive defrosting duct welding technology, specifically to a welding fixture for a defrosting duct. Background Technology

[0002] The automotive defrosting duct component is manufactured by injection molding. After injection molding, two injection molded parts need to be fixed together by hot riveting. During hot riveting welding, a welding fixture is required to position and fix the injection molded parts. However, existing welding fixtures position the injection molded parts directly on a support block. When the hot melt head of the hot riveting welding equipment moves downward to press and melt the riveting point, it is easy to cause displacement of the injection molded parts, thus affecting the accuracy and effect of hot riveting welding. Furthermore, existing welding fixtures can only position specific models of automotive defrosting duct components, resulting in poor applicability and low efficiency when switching components. Therefore, a new welding fixture for defrosting ducts is needed to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a welding fixture for a defrosting air duct to solve the problems existing in the prior art mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A welding fixture for a defrosting duct includes a base plate, a mounting sleeve, and a support block. The mounting sleeve is fixedly connected to the base plate, and the support block is detachably inserted into the mounting sleeve. The support block has a locking groove that matches the workpiece of the defrosting duct. The base plate has a width adjustment mechanism, and a part-removal control mechanism is connected to the width adjustment mechanism. The part-removal control mechanism is equipped with a positioning component for positioning the workpiece of the defrosting duct. The width adjustment mechanism is used to adjust the spacing of the positioning component. The part-removal control mechanism is used to control the positioning component to disengage from the workpiece of the defrosting duct. The part-removal control mechanism also has a height adjustment mechanism for adjusting the height of the positioning component.

[0006] Preferably, the width adjustment mechanism includes a first slide rail, a slider, and a lead screw. The first slide rail is connected to the base plate, the slider is slidably connected to both sides of the first slide rail, and the lead screw is rotatably connected to the first slide rail. The threads on both sides of the lead screw are arranged in opposite directions. The slider and the lead screw are threadedly connected, and a handwheel is keyed to one end of the lead screw.

[0007] Preferably, the part-retrieving control mechanism includes a second slide rail, a sliding sleeve, and a return spring. The second slide rail is connected to the slider, and the sliding sleeve is slidably connected to the second slide rail. A return spring for the return movement of the sliding sleeve is also provided inside the second slide rail. A guide ring is connected to the sliding sleeve on one side of the first slide rail, and a drive rod is rotatably connected to the sliding sleeve on the other side of the first slide rail. A sliding column that slides inside the guide ring is connected to the side wall of the drive rod.

[0008] Preferably, the positioning component includes a lifting column and a positioning block, the lifting column is slidably connected to the sliding sleeve, and the positioning block for positioning the defrosting air duct workpiece is connected to the lifting column.

[0009] Preferably, the height adjustment mechanism includes an adjusting screw, a worm gear, and a worm. The adjusting screw is rotatably connected to a sliding sleeve and is threadedly connected to a positioning component. The worm gear is keyed to the adjusting screw. A worm gear meshing with the worm gear is rotatably connected to the sliding sleeve, and a crank is connected to the worm gear.

[0010] Preferably, the guide ring is configured with an arc shape.

[0011] Preferably, the support block and the mounting sleeve are connected by an interference fit.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The present invention enables the rapid and stable positioning and fixing of the defrosting duct workpiece through the setting of the part removal control mechanism and the positioning component, preventing the defrosting duct workpiece from shifting during hot riveting welding, which would affect the welding accuracy and effect. Furthermore, the part removal control mechanism enables the quick and convenient removal of the welded defrosting duct workpiece, and the part removal control mechanism can automatically adapt to changes in the spacing of the positioning component.

[0014] 2. The present invention can comprehensively adjust the position of the positioning component by setting the width adjustment mechanism and the height adjustment mechanism, and the support block can be quickly replaced by connecting the support block and the mounting sleeve. This allows the welding fixture to be quickly switched between models, improves the applicability of the welding fixture, and improves the efficiency of switching processing of different models of defrosting air duct workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of removing the defrosting duct workpiece according to the present invention.

[0017] Figure 3 and Figure 4These are schematic diagrams of the width adjustment mechanism and the part-picking control mechanism of the present invention from different perspectives.

[0018] Figure 5 This is a cross-sectional structural diagram of the sliding sleeve and lifting column of the present invention.

[0019] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Base plate; 2. Mounting sleeve; 3. Support block; 4. Engaging groove; 5. Defrosting air duct workpiece; 6. Width adjustment mechanism; 61. First slide rail; 62. Slider; 63. Lead screw; 64. Handwheel; 7. Part picking control mechanism; 71. Second slide rail; 72. Sliding sleeve; 73. Return spring; 74. Guide ring; 75. Drive rod; 76. Sliding column; 8. Positioning assembly; 81. Lifting column; 82. Positioning block; 9. Height adjustment mechanism; 91. Adjusting screw; 92. Worm gear; 93. Worm; 94. Handle. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1-6 The present invention provides a technical solution:

[0023] A welding fixture for a defrosting duct includes a base plate 1, a mounting sleeve 2, and a support block 3. The mounting sleeve 2 is fixedly connected to the base plate 1, and the support block 3 is detachably inserted into the mounting sleeve 2. The support block 3 and the mounting sleeve 2 are connected by an interference fit. The support block 3 is provided with a locking groove 4 that matches the defrosting duct workpiece 5. The base plate 1 is provided with a width adjustment mechanism 6, which is used to adjust the spacing of the positioning components 8. The width adjustment mechanism 6 includes a first slide rail 61 and a sliding... The first slide rail 61 is connected to the base plate 1. The slider 62 is slidably connected to both sides of the first slide rail 61. The first slide rail 61 is rotatably connected to the lead screw 63. The threads on both sides of the lead screw 63 are arranged in opposite directions. The slider 62 and the lead screw 63 are threadedly connected. One end of the lead screw 63 is keyed to a handwheel 64. The spacing of the positioning components 8 can be adjusted by the width adjustment mechanism 6, so that the welding fixture can position defrosting air duct workpieces 5 of different widths.

[0024] The width adjustment mechanism 6 is connected to a part-removal control mechanism 7. The part-removal control mechanism 7 is used to control the positioning component 8 to disengage from the defrosting air duct workpiece 5. The part-removal control mechanism 7 includes a second slide rail 71, a sliding sleeve 72, and a return spring 73. The second slide rail 71 is connected to the slider 62, and the sliding sleeve 72 is slidably connected to the second slide rail 71. The second slide rail 71 is also provided with a return spring 73 for the return movement of the sliding sleeve 72. A guide ring 74 is connected to the sliding sleeve 72 on one side of the first slide rail 61, and a drive rod 75 is rotatably connected to the sliding sleeve 72 on the other side of the first slide rail 61. A sliding column 76 that slides in the guide ring 74 is connected to the side wall of the drive rod 75. The guide ring 74 is designed with an arc shape. The part-removal control mechanism 7 can quickly and conveniently remove the defrosting air duct workpiece 5 that has been hot-riveted and welded from the welding fixture, and the part-removal control mechanism 7 can automatically adapt to changes in the spacing between the sliding sleeves 72.

[0025] The part-picking control mechanism 7 is equipped with a positioning component 8 for positioning the defrosting air duct workpiece 5. The positioning component 8 includes a lifting column 81 and a positioning block 82. The lifting column 81 is slidably connected to the sliding sleeve 72. The positioning block 82 for positioning the defrosting air duct workpiece 5 is connected to the lifting column 81. The positioning component 8 can stably fix the defrosting air duct workpiece 5 on the welding fixture.

[0026] The part-retrieving control mechanism 7 is also equipped with a height adjustment mechanism 9 for adjusting the height of the positioning component 8. The height adjustment mechanism 9 includes an adjusting screw 91, a worm gear 92, and a worm 93. The adjusting screw 91 is rotatably connected to the sliding sleeve 72 and is threadedly connected to the positioning component 8. The worm gear 92 is keyed to the adjusting screw 91. The worm 93, which meshes with the worm gear 92, is rotatably connected to the sliding sleeve 72. A crank 94 is connected to the worm 93. The height of each lifting column 81 can be adjusted by the height adjustment mechanism 9, so that the welding fixture is suitable for positioning workpieces 5 of different shapes of defrosting air ducts.

[0027] The working process of this invention is as follows:

[0028] When it is necessary to position the defrosting duct workpiece 5, the defrosting duct workpiece 5 is lifted above the support block 3 and pressed down, causing the defrosting duct workpiece 5 to squeeze the positioning block 82. The positioning block 82 drives the sliding sleeve 72 to slide in the second slide rail 71 through the lifting column 81, so that the two lifting columns 81 move away from each other. When the defrosting duct workpiece 5 moves down to the corresponding engaging groove 4 on the support block 3, the sliding sleeve 72, under the action of the return spring 73, drives the lifting column 81 and the positioning block 82 to engage the upper position of the defrosting duct workpiece 5, thereby achieving stable positioning of the defrosting duct workpiece 5. When it is necessary to remove the defrosting duct workpiece 5 after hot riveting and welding, the drive rod 75 is pressed down, and the drive rod 75 drives the sliding column 76 to slide in the guide ring 74, so that the two sliding sleeves 72 move away from each other, and the positioning block 82 disengages from the surface of the defrosting duct workpiece 5, so that the defrosting duct workpiece 5 can be quickly removed.

[0029] When hot riveting welding is required for different models of defrosting duct workpieces 5, the original support block 3 is pulled out from the mounting sleeve 2 and a corresponding model support block 3 is installed; the handwheel 64 is turned to drive the lead screw 63 to rotate, and the lead screw 63 drives the part picking control mechanism 7 and the positioning component 8 to move away from or towards each other through the slider 62, so as to match the width of the defrosting duct workpiece 5; the crank handle 94 is turned to drive the worm gear 93 to rotate, and the worm gear 93 drives the adjusting screw 91 to rotate through the worm wheel 92, and the adjusting screw 91 drives the lifting column 81 to move up and down within the sliding sleeve 72, so that the welding fixture can be used for different models of defrosting duct workpieces 5, thereby improving the applicability of the welding fixture.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for a defrosting air duct, characterized in that, The assembly includes a base plate (1), a mounting sleeve (2), and a support block (3). The mounting sleeve (2) is fixedly connected to the base plate (1). The support block (3) is detachably inserted into the mounting sleeve (2). The support block (3) is provided with a locking groove (4) that matches the defrosting duct workpiece (5). The base plate (1) is provided with a width adjustment mechanism (6). The width adjustment mechanism (6) is connected to a part-removal control mechanism (7). The part-removal control mechanism (7) is equipped with a positioning component (8) for positioning the defrosting duct workpiece (5). The width adjustment mechanism (6) is used to adjust the spacing of the positioning component (8). The part-removal control mechanism (7) is used to control the positioning component (8) to disengage from the defrosting duct workpiece (5). The part-removal control mechanism (7) is also provided with a height adjustment mechanism (9) for adjusting the height of the positioning component (8). The width adjustment mechanism (6) includes a first slide rail (61), a slider (62), and a lead screw (63). The first slide rail (61) is connected to the base plate (1). The slider (62) is slidably connected to both sides of the first slide rail (61). The lead screw (63) is rotatably connected to the first slide rail (61). The threads on both sides of the lead screw (63) are arranged in opposite directions. The slider (62) and the lead screw (63) are threadedly connected. A handwheel (64) is keyed to one end of the lead screw (63). The part-retrieving control mechanism (7) includes a second slide rail (71), a sliding sleeve (72), and a return spring (73). The second slide rail (71) is connected to the slider (62), and the sliding sleeve (72) is slidably connected to the second slide rail (71). The second slide rail (71) is also provided with a return spring (73) for the return movement of the sliding sleeve (72). A guide ring (74) is connected to the sliding sleeve (72) on one side of the first slide rail (61), and a drive rod (75) is rotatably connected to the sliding sleeve (72) on the other side of the first slide rail (61). A sliding column (76) that slides in the guide ring (74) is connected to the side wall of the drive rod (75). The guide ring (74) is designed to be arc-shaped. The part removal control mechanism (7) enables the defrosting air duct workpiece (5) that has been hot riveted and welded to be quickly and conveniently removed from the welding fixture, and the part removal control mechanism (7) can automatically adapt to the change in the distance between the sliding sleeves (72).

2. The welding fixture for a defrosting duct according to claim 1, characterized in that: The positioning component (8) includes a lifting column (81) and a positioning block (82). The lifting column (81) is slidably connected to the sliding sleeve (72) and the positioning block (82) is connected to the lifting column (81) for positioning the defrosting air duct workpiece (5).

3. The welding fixture for a defrosting duct according to claim 1, characterized in that: The height adjustment mechanism (9) includes an adjusting screw (91), a worm gear (92), and a worm (93). The adjusting screw (91) is rotatably connected to the sliding sleeve (72). The adjusting screw (91) is threadedly connected to the positioning assembly (8). The worm gear (92) is keyed to the adjusting screw (91). The sliding sleeve (72) is rotatably connected to the worm (93) that meshes with the worm gear (92). A crank (94) is connected to the worm (93).

4. The welding fixture for a defrosting duct according to claim 1, characterized in that: The support block (3) and the mounting sleeve (2) are connected by an interference fit.

Images