Mud guard and sound-absorbing cotton welding device

Abstract

The utility model discloses a mudguard and sound-absorbing cotton welding device which comprises a machine frame, a welding mechanism arranged on the machine frame, a jig arranged on the machine frame and a positioning mechanism arranged on the machine frame and used for positioning the jig. The jig comprises a plate body, a profiling supporting part arranged on the plate body, a plurality of suction cups arranged on the plate body and located on the outer side of the profiling supporting part, and a plurality of pre-pressing assemblies arranged on the plate body. The pre-pressing assembly comprises a seat body arranged on the plate body, a spur rack vertically arranged on the seat body in a sliding mode, a first air cylinder arranged on the seat body and used for driving the spur rack to ascend and descend, a gear rotationally arranged on the seat body and engaged with the spur rack, a connecting column coaxially and fixedly connected with the gear and a pressing piece arranged on the connecting column. The pressing device has the advantages that the structural design of the pressing piece is simple and compact, the sound-absorbing cotton can be effectively pre-pressed through the pressing mode of the sound-absorbing cotton, the stroke of the pressing piece can be conveniently controlled by adjusting the initial position of the gear, and the pre-pressing precision of the sound-absorbing cotton is ensured.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, in particular to a fender and sound-absorbing cotton welding device. Background Art

[0002] Sound-absorbing cotton is provided on the car fender to ensure that it can also have a noise reduction function during the mud-blocking process. In order to ensure a stable connection between the sound-absorbing cotton and the fender, the sound-absorbing cotton and the fender are usually welded by ultrasonic welding technology. When the traditional welding tooling is used to weld and position the sound-absorbing cotton and the fender, the sound-absorbing cotton needs to be pressed to reduce the deformation of the sound-absorbing cotton during the welding process. The traditional clamping assembly uses a cylinder or a screw to drive the clamping block for clamping, but the stroke adjustment of the cylinder or the screw is inconvenient, and the sound-absorbing cotton has a very strong foaming property, resulting in high requirements for the clamping accuracy. Therefore, the existing clamping assembly is difficult to control the accuracy when clamping the sound-absorbing cotton.

[0003] In view of this, it is necessary to provide a fender and sound-absorbing cotton welding device. Summary of the invention

[0004] The utility model provides a fender and sound-absorbing cotton welding device which effectively solves the existing

[0005] The technical solution adopted by the utility model is

[0006] A fender and sound-absorbing cotton welding device comprises a frame, a welding mechanism arranged on the frame, a jig arranged on the frame, and a positioning mechanism arranged on the frame for positioning the jig, wherein the jig comprises a plate body, a contour support portion arranged on the plate body, a plurality of suction cups arranged on the plate body and located outside the contour support portion, and a plurality of pre-pressing components arranged on the plate body, wherein the pre-pressing components comprise a seat body arranged on the plate body, a spur rack vertically slidably arranged on the seat body, a No. 1 cylinder arranged on the seat body for driving the spur rack to rise and fall, a gear rotatably arranged on the seat body and meshing with the spur rack, a connecting column coaxially fixedly connected to the gear, and a pressing piece arranged on the connecting column.

[0007] Furthermore, the welding mechanism includes a No. 1 linear module fixedly arranged on the frame along the Y direction, a No. 2 linear module fixedly arranged at the output end of the No. 1 linear module along the X direction, a No. 3 linear module fixedly arranged at the output end of the No. 2 linear module along the Z direction, a No. 2 cylinder vertically arranged at the output end of the No. 3 linear module, a connecting plate arranged at the output end of the No. 2 cylinder, and an ultrasonic welding head arranged on the connecting plate.

[0008] Furthermore, the welding mechanism further comprises a pre-pressure buffer arranged at the lower end of the connecting plate, and the lower end of the pre-pressure buffer protrudes from the lower end of the ultrasonic welding head.

[0009] Furthermore, the positioning mechanism includes positioning columns arranged on the frame along the X direction for blocking the front side of the jig, a plurality of No. 1 rollers arranged on the frame along the Y direction, a plurality of No. 2 rollers arranged on the frame along the Y direction, a No. 1 guide bar arranged on the frame and docking with the No. 1 roller, and a No. 2 guide bar arranged on the frame and docking with the No. 2 roller, the No. 1 guide bar and the No. 2 guide bar are arranged opposite to each other, the No. 1 roller is used to abut against one side of the jig, and the No. 2 roller is used to abut against the other side of the jig, a locking piece is arranged on the jig, a locking hole matching the locking piece is arranged on the jig, and a handle is also arranged on the plate body.

[0010] Furthermore, the pressing member includes a first rod and a second rod respectively fixedly connected to the two ends of the connecting column, a third rod connecting the first rod and the second rod, and a vertical pressing plate arranged at the lower end of the third rod.

[0011] Beneficial effects of the utility model: the structural design of the pressing piece is simple and compact, and the pressing method of the sound-absorbing cotton can effectively realize the pre-pressing of the sound-absorbing cotton. It is convenient to control the stroke of the pressing piece by adjusting the initial position of the gear to ensure the pre-pressing accuracy of the sound-absorbing cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 An overall schematic diagram of a fender and sound-absorbing cotton welding device provided in an embodiment of the present application.

[0013] Figure 2 A schematic diagram of the frame, positioning mechanism, and fixture of the fender and sound-absorbing cotton welding device provided in an embodiment of the present application.

[0014] Figure 3 A schematic diagram of a pre-pressing assembly of a fender and sound-absorbing cotton welding device provided in an embodiment of the present application.

[0015] Figure 4 A schematic diagram of the No. 2 cylinder, connecting plate, ultrasonic welding head and pre-load buffer of the fender and sound-absorbing cotton welding device provided in an embodiment of the present application.

[0016] The markings in the figure are: 1, frame; 2, welding mechanism; 3, fixture; 4, positioning mechanism; 31, plate body; 32, contour support; 33, suction cup; 34, pre-pressing assembly; 35, locking piece; 36, handle; 341, seat; 342, spur rack; 343, cylinder No. 1; 344, gear; 345, connecting column; 346, pressing piece; 21, linear module No. 1; 22, linear module No. 2 Module; 23, linear module No. 3; 24, cylinder No. 2; 25, connecting plate; 26, ultrasonic welding head; 27, pre-load buffer; 41, positioning column; 42, roller No. 1; 43, roller No. 2; 44, guide strip No. 1; 45, guide strip No. 2; 301, rod No. 1; 302, rod No. 2; 303, rod No. 3; 304, vertical pressure plate; 100, mudguard; 200, sound-absorbing cotton. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, the mudguard and sound-absorbing cotton welding device provided in the embodiment of the present application has a structure including a frame 1, a welding mechanism 2 arranged on the frame 1, a jig 3 arranged on the frame 1, and a positioning mechanism 4 arranged on the frame 1 for positioning the jig 3, wherein the jig 3 includes a plate body 31, a contour support portion 32 arranged on the plate body 31, a plurality of suction cups 33 arranged on the plate body 31 and located outside the contour support portion 32, and a plurality of pre-pressing components 34 arranged on the plate body 31, wherein the pre-pressing components 34 include a seat body 341 arranged on the plate body, a spur rack 342 vertically slidably arranged on the seat body 341, a No. 1 cylinder 343 arranged on the seat body 341 for driving the spur rack 342 to rise and fall, a gear 344 rotatably arranged on the seat body 341 and meshing with the spur rack 342, a connecting column 345 coaxially fixedly connected to the gear 344, and a pressing member 346 arranged on the connecting column 345.

[0019] In actual use, the fixture 3 is fixed by the positioning mechanism 4. The fender 100 is adsorbed from below by the suction cup 33, and then the sound-absorbing cotton 200 is pre-pressed from above by the pre-pressing component 34, and then the sound-absorbing cotton 200 and the fender 100 are welded by the welding mechanism 2. The pressing principle of the pre-pressing component 34 is: the straight rack 342 is driven to rise by the No. 1 cylinder 343, so that the gear 344 rotates to drive the connecting column 345 to rotate synchronously, and the connecting column 345 drives the pressing piece 346 to swing and press the suction cotton.

[0020] In the above design, the structural design of the pressing member 346 is simple and compact, and the pressing method of the sound-absorbing cotton 200 can effectively realize the pre-compression of the sound-absorbing cotton 200, and it is convenient to control the stroke of the pressing member 346 by adjusting the initial position of the gear 344 to ensure the pre-compression accuracy of the sound-absorbing cotton 200.

[0021] Specifically: Figure 1 and Figure 4 As shown, the welding mechanism 2 includes a No. 1 linear module 21 fixedly arranged on the frame 1 along the Y direction, a No. 2 linear module 22 fixedly arranged at the output end of the No. 1 linear module 21 along the X direction, a No. 3 linear module 23 fixedly arranged at the output end of the No. 2 linear module 22 along the Z direction, a No. 2 cylinder 24 vertically arranged at the output end of the No. 3 linear module 23, a connecting plate 25 arranged at the output end of the No. 2 cylinder 24, and an ultrasonic welding head 26 arranged on the connecting plate 25.

[0022] In the above design, the No. 1 linear module 21 drives the No. 2 linear module 22 to move in the Y direction, the No. 2 linear module 22 drives the No. 3 linear module 23 to move in the Z direction, the No. 2 cylinder 24 is driven downward by the No. 3 linear module 23, and the No. 2 cylinder 24 drives the ultrasonic welding head 26 downward to achieve welding of the sound-absorbing cotton 200 and the fender 100.

[0023] In the above design, the structural design and specific implementation method of the welding mechanism 2 facilitate rapid welding of the sound-absorbing cotton 200 and the fender 100.

[0024] Specifically: Figure 4 As shown, the welding mechanism 2 further includes a pre-pressure buffer 27 disposed at the lower end of the connecting plate 25 , and the lower end of the pre-pressure buffer 27 protrudes beyond the lower end of the ultrasonic welding head 26 .

[0025] In actual use, the pre-pressure buffer 27 will contact the sound-absorbing cotton 200 earlier than the ultrasonic welding head 26, and will be separated from the sound-absorbing cotton 200 one step later than the ultrasonic welding head 26 after welding is completed.

[0026] In the above design, the structural design and specific implementation of the pre-pressure buffer 27 can effectively prevent the ultrasonic welding head 26 from bringing the sound-absorbing cotton 200 upward after welding.

[0027] Specifically: Figure 2As shown, the positioning mechanism 4 includes a positioning column 41 arranged on the frame 1 along the X direction for blocking the front side of the fixture 3, a plurality of No. 1 rollers 42 arranged on the frame 1 along the Y direction, a plurality of No. 2 rollers 43 arranged on the frame 1 along the Y direction, a No. 1 guide bar 44 arranged on the frame 1 and docking with the No. 1 roller 42, and a No. 2 guide bar 45 arranged on the frame 1 and docking with the No. 2 roller 43. The No. 1 guide bar 44 and the No. 2 guide bar 45 are arranged opposite to each other, the No. 1 roller 42 is used to abut against one side of the fixture 3, and the No. 2 roller 43 is used to abut against the other side of the fixture 3. A locking piece 35 is provided on the fixture 3, and a locking hole matching the locking piece 35 is provided on the fixture 3. A handle 36 is also provided on the plate body 31.

[0028] In actual use, when the jig 3 needs to be replaced, the locking member 35 and the locking hole are unlocked, and then the handle 36 is pulled to pull the jig 3 out of the frame 1. When the jig 3 needs to be assembled with the frame 1, the handle 36 is pushed to move the jig 3 from between the No. 1 guide bar and the No. 2 guide bar 45 along the No. 1 roller 42 and the No. 2 roller 43 toward the side of the positioning column 41, and finally the positioning column 41 is abutted against the jig 3, the locking hole is aligned with the locking member 35, and then the locking member 35 is locked with the locking hole.

[0029] In the above design, the structural design and specific implementation of the positioning mechanism 4 facilitate the transfer and fixation of the fixture 3.

[0030] Specifically: Figure 3 As shown, the pressing member 346 includes a No. 1 rod 301 and a No. 2 rod 302 respectively fixedly connected to the two ends of the connecting column 345, a No. 3 rod 303 connecting the No. 1 rod 301 and the No. 2 rod 302, and a vertical pressing plate 304 arranged at the lower end of the No. 3 rod 303.

[0031] In actual use, the first rod 301, the second rod 302, the third rod 303 and the vertical pressure plate 304 swing synchronously.

[0032] In the above design, the structural design and specific implementation method of the pressing member 346 can effectively achieve rapid pre-compression of the sound-absorbing cotton 200.

[0033] To further explain in detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fender and sound-absorbing cotton welding device, comprising a frame (1), a welding mechanism (2) arranged on the frame (1), a jig (3) arranged on the frame (1), and a positioning mechanism (4) arranged on the frame (1) for positioning the jig (3), characterized in that: The jig (3) comprises a plate body (31), a contour support portion (32) arranged on the plate body (31), a plurality of suction cups (33) arranged on the plate body (31) and located outside the contour support portion (32), and a plurality of pre-pressing components (34) arranged on the plate body (31); the pre-pressing components (34) comprise a seat body (341) arranged on the plate body, a spur rack (342) vertically slidably arranged on the seat body (341), a No. 1 cylinder (343) arranged on the seat body (341) for driving the spur rack (342) to rise and fall, a gear (344) rotatably arranged on the seat body (341) and meshing with the spur rack (342), a connecting column (345) coaxially fixedly connected to the gear (344), and a pressing member (346) arranged on the connecting column (345).

2. The fender and sound-absorbing cotton welding device according to claim 1 is characterized in that: The welding mechanism (2) comprises a No. 1 linear module (21) fixedly arranged on a frame (1) along the Y direction, a No. 2 linear module (22) fixedly arranged at the output end of the No. 1 linear module (21) along the X direction, a No. 3 linear module (23) fixedly arranged at the output end of the No. 2 linear module (22) along the Z direction, a No. 2 cylinder (24) vertically arranged at the output end of the No. 3 linear module (23), a connecting plate (25) arranged at the output end of the No. 2 cylinder (24), and an ultrasonic welding head (26) arranged on the connecting plate (25).

3. The fender and sound-absorbing cotton welding device according to claim 2 is characterized in that: The welding mechanism (2) further comprises a pre-pressure buffer (27) arranged at the lower end of the connecting plate (25), wherein the lower end of the pre-pressure buffer (27) protrudes beyond the lower end of the ultrasonic welding head (26).

4. The fender and sound-absorbing cotton welding device according to claim 1 is characterized in that: The positioning mechanism (4) comprises a positioning column (41) arranged on the frame (1) along the X direction for blocking the front side of the jig (3), a plurality of No. 1 rollers (42) arranged on the frame (1) along the Y direction, a plurality of No. 2 rollers (43) arranged on the frame (1) along the Y direction, a No. 1 guide bar (44) arranged on the frame (1) and connected to the No. 1 roller (42), and a No. 2 guide bar (45) arranged on the frame (1) and connected to the No. 2 roller (43), wherein the No. 1 guide bar (44) and the No. 2 guide bar (45) are arranged opposite to each other, the No. 1 roller (42) is used to abut against one side of the jig (3), and the No. 2 roller (43) is used to abut against the other side of the jig (3), a locking piece (35) is arranged on the jig (3), and a locking hole matched with the locking piece (35) is arranged on the jig (3), and a handle (36) is also arranged on the plate body (31).

5. The fender and sound-absorbing cotton welding device according to claim 1 is characterized in that: The pressing member (346) comprises a first rod (301) and a second rod (302) respectively fixedly connected to two ends of a connecting column (345), a third rod (303) connecting the first rod (301) and the second rod (302), and a vertical pressing plate (304) arranged at the lower end of the third rod (303).

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