阅读说明：本技术 一种用于刮除铜导体基材表面杂质的专用工作台 (Special workbench for scraping impurities on surface of copper conductor substrate ) 是由 王立国 于 2021-09-13 设计创作，主要内容包括：一种用于刮除铜导体基材表面杂质的专用工作台,目的是刮除铜导体基材表面杂质以适宜超声波焊接；本发明包括底板、拨动机构、支撑架、传动齿条、刀片、刀头、工装及工装底板；拨动机构包括拨动杆、传动轮、定位销一和定位销二；拨动杆一端过盈装入传动轮上圆孔内；传动轮为圆形齿轮结构,三分之二外边缘为齿轮结构,三分之一外边缘为圆弧结构；传动轮圆弧结构侧面有一个用于固定拨动杆的圆孔；支撑架包含支撑架一、支撑架二；支撑架一和支撑架二均固定在底板上,支撑架一中间位置有一个方型槽结构；支撑架二中间有一个用于固定传动轮的圆孔；传动齿条一端为正方体截面,另一端为长方体带U型槽结构,刀头通过U型槽一边的螺纹孔固定在U型槽内。(A special worktable for scraping impurities on the surface of a copper conductor substrate aims at scraping the impurities on the surface of the copper conductor substrate to be suitable for ultrasonic welding; the tool comprises a bottom plate, a shifting mechanism, a supporting frame, a transmission rack, a blade, a tool bit, a tool and a tool bottom plate; the poking mechanism comprises a poking rod, a driving wheel, a first positioning pin and a second positioning pin; one end of the poke rod is arranged in the round hole on the driving wheel in an interference manner; the driving wheel is of a circular gear structure, two thirds of the outer edge of the driving wheel is of a gear structure, and one third of the outer edge of the driving wheel is of an arc structure; a circular hole for fixing the poke rod is arranged on the side surface of the circular arc structure of the driving wheel; the support frame comprises a first support frame and a second support frame; the first support frame and the second support frame are both fixed on the bottom plate, and a square groove structure is arranged in the middle of the first support frame; a round hole for fixing the driving wheel is arranged in the middle of the second support frame; one end of the transmission rack is a cube section, the other end of the transmission rack is a cuboid structure with a U-shaped groove, and the cutter head is fixed in the U-shaped groove through a threaded hole on one side of the U-shaped groove.)

1. A special workbench for scraping impurities on the surface of a copper conductor substrate is characterized by comprising a bottom plate, a shifting mechanism, a supporting frame, a transmission rack, a blade, a tool bit, a tool and a tool bottom plate; one side of the bottom plate is provided with a fixing hole and an adjusting groove, and the other side of the bottom plate is provided with a counter bore structure corresponding to the position of the hole groove; the poking mechanism comprises a poking rod, a driving wheel, a first positioning pin and a second positioning pin; one end of the poke rod is arranged in the round hole on the driving wheel in an interference fit manner, and the other end of the poke rod is suspended as a handheld holding part; the driving wheel is of a circular gear structure, two thirds of outer edges of the driving wheel are of gear structures, and the other third of outer edges of the driving wheel are of arc structures; the gear on the driving wheel is meshed with the driving rack; the center of the driving wheel is a circular through hole, the side surface of the circular arc structure of the driving wheel is provided with a circular hole for fixing the poking rod, and one end of the poking rod is assembled on the hole in an interference fit manner; the support frame comprises a first support frame and a second support frame; the first support frame and the second support frame are both fixed on the bottom plate through lower threaded holes, and a square groove structure is arranged in the middle of the first support frame; a round hole for fixing the driving wheel is arranged in the middle of the second support frame; a small cylindrical structure at the top end of the first positioning pin penetrates through a round hole in the front center of the driving wheel and round holes in two side faces of the support frame, and finally a round hole in the front center of the second positioning pin is arranged; one end of the transmission rack is a cube section, the whole upper end face of the transmission rack is of a rack structure, the other end of the transmission rack is of a cuboid structure with a U-shaped groove, one side of the U-shaped groove is provided with a threaded hole, and the cutter head is fixed in the U-shaped groove through the threaded hole and a bolt; the side surface of the rear end of the cutter head is provided with a circular hole, the lower part of the front end of the cutter head is provided with a square through groove structure, and the blade is installed in the square groove through a bolt and fixed; the tool is in a square aluminum block structure, and the lower plane of the tool is provided with two U-shaped groove structures for limiting the tool on a tool bottom plate; there are two square boss structures that carry on spacingly to the frock on one side of the frock bottom plate, and the frock bottom plate passes through the below screw hole to be fixed on the bottom plate.

2. The special worktable for scraping the impurities on the surface of the copper conductor substrate as claimed in claim 1, wherein the first positioning pin is a structure of a large cylinder connected with a small cylinder, and the side wall of the top end of the small cylinder is provided with a threaded hole; the second positioning pin is of a cylindrical structure, the center of the front surface of the cylinder is of a through hole structure, and a threaded hole is reserved in the side surface of the cylinder.

3. The special worktable for scraping off impurities on the surface of a copper conductor substrate as claimed in claim 1 or 2, wherein the transmission rack is of a cuboid structure, and a distance for enabling the transmission rack to axially slide is reserved between the transmission rack and the through groove of the first support frame; the front end of the cuboid transmission rack is of a U-shaped groove structure, and a gap for finely adjusting the angle of the tool bit is reserved between the U-shaped groove and the tool bit.

4. The special worktable for scraping the impurities on the surface of the copper conductor substrate as claimed in claim 1 or 2, wherein the upper part of the front end of the tool bit is provided with a C10 chamfer structure; a square through groove which penetrates through the whole structure to form a 135-degree angle downwards is formed in the lower side of the front end of the cutter head, and two threaded holes for screwing in bolts to fix the blades are formed in two sides of the square through groove respectively; and two boss structures for protecting the blades from being broken are arranged at the upper and lower edges of the two sides of the extension groove at the lower end port of the square through groove.

5. The special worktable for scraping off impurities on the surface of a copper conductor substrate as claimed in claim 1 or 2, wherein the blade is of a cuboid structure and is made of hard alloy steel. The two end surfaces of the blade are inclined surfaces forming an angle of 135 degrees with the bottom surface.

6. The special worktable for scraping the impurities on the surface of the copper conductor substrate as claimed in claim 1 or 2, wherein the upper plane of the tooling is a profiling structure corresponding to the product, and a 0.1mm gap is left between the upper plane of the tooling and the product.

7. A special worktable for scraping off impurities on the surface of a copper conductor substrate as claimed in claim 1 or 2, wherein the size of the through groove of the first supporting frame is 0.1mm larger than the square edge of the transmission rack.

8. The special worktable for scraping off impurities on the surface of a copper conductor substrate as claimed in claim 1 or 2, wherein the upper and lower positions of the edge of the through groove at one end of the tool bit are provided with diamond-shaped boss structures capable of preventing tool breakage.

9. The special worktable for scraping the impurities on the surface of the copper conductor substrate as claimed in claim 1 or 2, wherein the whole position of the blade forms an angle of 45 degrees with the tool bottom plate.

Technical Field

The invention relates to a special workbench for scraping impurities on the surface of a copper conductor substrate, which is particularly suitable for scraping a layer of impurities such as oxides and the like on the surface of a connector copper conductor on a clock spring so as to ensure that the ultrasonic welding quality of the surface of the copper conductor is better.

Background

The clock spring is a connector which is connected with a circuit on the automobile steering wheel and is used for connecting each functional circuit on the steering wheel, wherein the ultrasonic welding of a copper conductor (general specification: 1.6 x 0.6mm copper sheet) of a connector and a flat cable is a key process; and oil stains remained on the surface of the connector copper conductor after electroplating and impurities such as an oxide layer and the like caused by long-term storage bring serious adverse effects to the stability of ultrasonic welding, often cause the problems of difficult welding, insufficient soldering, solder fracture and the like, and finally cause the problems of unstable product function, short product service life and the like. The traditional method for cleaning the surface layer defects of oil stains, oxidation layers and the like on the surface of the copper conductor of the connector is chemical liquid cleaning, and after the treatment by the chemical method is finished, if the product cannot be used up in a short time, new problems such as stains, oxidation, overflow of chemical liquid immersed in the material and the like can be generated on the surface of the copper conductor of the connector for the second time; when the copper conductor ultrasonic welding device is used in daily life, a supplement tool is urgently needed to scrape off impurities such as oil stains and oxide layers on the surface of a copper sheet and leak out of a base material, so that the copper conductor ultrasonic welding device is beneficial to ultrasonic welding of a copper conductor.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a special workbench which can scrape impurities on the surface of a copper conductor substrate, can ensure that the surface of the copper conductor is smooth and not rough and is suitable for ultrasonic welding.

The tool comprises a bottom plate, a supporting frame, a transmission rack, a shifting mechanism, a blade, a tool bit, a tool and a tool bottom plate. The tool bottom plate is of a smooth cuboid structure, a fixing hole and an adjusting groove are formed in the upper portion of the tool bottom plate, and a countersunk structure is formed in the lower portion of the tool bottom plate corresponding to the position of the hole groove. The support frame and the tooling bottom plate are fixed through bolts. The adjusting groove enables the position of the tool bottom plate to be finely adjusted by moving the position of the bolt in the groove.

The poking mechanism comprises a poking rod, a driving wheel, a first positioning pin and a second positioning pin. The poke rod is integrally of a cylindrical structure, one end of the poke rod is arranged in a round hole in the side surface of the transmission wheel in an interference fit mode, and when the poke rod is used, the transmission wheel is controlled through the poke rod to drive the transmission rack to move back and forth; the other end is suspended by the holding part; the driving wheel is of a circular gear structure, wherein two thirds of outer edges of the driving wheel are of gear structures, and the other one third of outer edges of the driving wheel are of arc structures; the gear on the driving wheel is meshed with the driving rack; the center of the driving wheel is provided with a circular through hole structure, and the first positioning pin penetrates through a circular hole in the center of the driving wheel to fix the driving wheel on the second support frame. The side surface of the arc structure of the driving wheel is provided with a round hole for fixing the poke rod. The first positioning pin is in a structure that a large cylinder is connected with a small cylinder, and a threaded hole is formed in the side wall of the top end of the small cylinder; the positioning pin II is of a cylindrical structure, a through hole is formed in the center of the front face of the cylinder, and a threaded hole is formed in the side face of the cylinder; the support frame comprises a first support frame and a second support frame, the first support frame and the second support frame are fixed on the tool bottom plate through bottom threaded holes, a square groove structure is arranged in the middle of the first support frame, the square structure of the transmission rack is arranged in the groove and can slide back and forth, and the edge of the periphery of the square groove is chamfered with a C angle. A round hole for fixing the driving wheel is arranged in the middle of the second support frame, so that the driving wheel rotates in the radial direction of the hole by taking the first positioning pin as a shaft; and when the centers of the threaded holes on the small cylindrical structure at the top end of the first positioning pin and the threaded holes on the side surfaces of the circular arc structures of the second positioning pin coincide, the first positioning pin and the second positioning pin are fixed in the two threaded holes by screwing the jackscrews. The support frame II is fixed on the bottom plate through a threaded hole by a bolt. The transmission rack is of a long strip structure with a smooth surface; the rear end is a square section, the whole upper end face is of a rack structure, and the rack is correspondingly meshed with the tooth structure of the transmission wheel to provide forward force; a gap of 0.1mm is formed between the rear-end square body structure and the through groove of the first support frame, so that the transmission rack can easily slide in the axial direction; the front end is a cuboid structure with a U-shaped groove, and one side of the U-shaped groove is provided with a threaded hole.

The cutter head is of a cuboid structure, a round hole is formed in the side face of the rear end of the cutter head and is matched with a threaded hole in a U-shaped groove of the transmission rack, and a bolt penetrates through the round hole to fix the cutter head on the transmission rack; certain clearance is left between the shape structure of the rear end and the U-shaped groove, so that the cutter head can be finely adjusted by a certain angle through the bolt. The upper part of the front end is provided with a C10 chamfer structure; a square through groove which penetrates through the integral structure to form a 135-degree angle downwards is formed in the lower side of the front end, and two threaded holes for fixing blades are formed in one side of the square through groove; at the lower end of the square through groove, the upper side and the lower side of the groove are provided with two rhombic boss structures for protecting the blades from being broken off. The blade is of a cuboid structure and is made of hard imported alloy steel, and two ends of the blade are inclined planes forming an angle of 135 degrees with the bottom surface.

The frock is square aluminium block structure, and the last plane of frock is the profile modeling structure that corresponds with the product, and there is 0.1mm clearance with product overall dimension. The lower plane of the tool is provided with two U-shaped groove structures for limiting the tool on a tool bottom plate; the tool bottom plate is of a square boss structure and is fixed on the bottom plate through a threaded hole below the tool bottom plate. Two square boss structures are arranged on one side of the tool bottom plate, the bosses are oppositely arranged with the grooves at the bottom of the tool, and the tool can freely slide on the bosses.

The method adopts a physical mode to remove oxides, dirt and the like on the surface of the copper conductor, can solve the problems of unstable welding quality and the like after the traditional surface treatment, and is suitable for ultrasonic welding because the surface of the copper conductor is flat and not rough after the treatment.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a tool tip configuration;

FIG. 3 is a schematic view of a toggle mechanism;

FIG. 4 is a schematic structural view of a tooling bottom plate;

FIG. 5 is a schematic view of the tooling structure;

in the figure: 1. a base plate; 2. a first support frame; 3. a drive rack; 4. a driving wheel; 5. a poke rod; 6. a first positioning pin; 7. a cutter head; 8. a blade; 9. a tooling bottom plate; 10. assembling; 11. a second support frame; 12. and a second positioning pin.

Detailed Description

This patent is described in further detail below with reference to the accompanying drawings:

the bottom plate 1 is the foundation of the workbench and is made of 45 steel materials, and the appearance has certain hardness and smoothness. The connecting device is connected with the first support frame 2, the second support frame 11 and the tooling bottom plate 9 through bolts and is a main frame of the workbench. The first support frame 2 provides support for the transmission rack 3, is made of No. 45 steel, has a smooth and flat surface, and is provided with a square through groove in the middle. The square structure part of the transmission rack 3 is arranged in the square groove of the first support frame 2, and a certain gap is reserved between the square structure part and the first support frame, so that the square structure part can freely slide along the edge of the crossheading. The transmission rack 3 is made of 45 steel materials, the rear end face of the transmission rack is of a square solid structure, the upper portion of the rear end of the transmission rack is of a rack structure, the rack structure occupies about two thirds of the total length, and the rack structure is arranged in a square groove of the support frame I2 and slides in the axial direction of the transmission rack 3; the front end of the transmission rack 3 is of a relatively large cuboid structure, a U-shaped groove structure is arranged on the side face of the cuboid, and a threaded hole for fixing the cutter head 7 is formed in one side of the groove. When the cutter head 7 is arranged in the groove, a certain gap is left between the periphery of the groove and the cutter head 7. When the square structure moves axially, the first support frame 2 limits the square structure. The size of the through groove of the first support frame 2 is 0.1mm larger than the square edge of the transmission rack 3, and the transmission rack 3 can easily slide in the axial direction.

The driving wheel 4, the poke rod 5, the first positioning pin 6 and the second positioning pin 12 are assembled together to form a poking mechanism of the workbench. The cylindrical structure of the first positioning pin 6 penetrates through an inner circular hole of the transmission rack 3, a circular hole of the second support frame 11 and a circular hole of the second positioning pin 12, a threaded hole in the top end of the first positioning pin 6 is overlapped with the circular hole in the side face of the second positioning pin 12, and a jackscrew is screwed into the threaded hole to fix the driving wheel 4, the first positioning pin 6 and the second positioning pin 12. The poke rod 5 is made of 45 steel materials, is integrally of a cylindrical structure, and one end of the poke rod is arranged in a round hole in the side surface of the driving wheel 4 in an interference fit mode for fixing. When the tool is used, the poke rod 5 is moved, the positioning pin I6 is used as an axis, the gear on the driving wheel 4 is driven to be meshed with the driving rack 3, and the tool bit 7 and the blade 8 are driven to work. The tool bit 7 is made of 45 steel, has a smooth and flat surface, is connected with a U-shaped groove at the head part of the transmission rack 3, passes through a round hole of the tool bit 7 by a bolt, and is screwed into a thread of the U-shaped groove of the transmission rack 3 for fixing. A square through groove is formed in the lower end face of the cutter head 7, and when the blade 8 is installed in the through groove, a bolt is screwed into a threaded hole in the side face of the cutter head 7 to tightly push and fix the cutter head 7. Two protruding rhombic boss-shaped structures are arranged at the upper and lower positions of the through groove of the tool bit 7, and when the blade 8 is arranged in the through groove, the two bosses are used for protecting the blade 8 from deformation generated during working stress, so that the blade is prevented from being broken. The blade 8 is of a cuboid structure and is manufactured by processing imported alloy steel. The end face of the blade 8 is an inclined end face forming an angle of 135 degrees with the two side faces. The blade 8 is connected with the cutter head 7, is arranged in the through groove of the cutter head 7 and is fixed together by bolts. The upper and lower positions of the edge of the through groove at one end of the cutter head 7 are provided with rhombic boss structures, and when the blade 8 is stressed, the upper and lower positions of the blade 8 are supported to prevent cutter breakage. The integral position of the blade 8 and the tool bottom plate 9 form an angle of 135 degrees. The tool bottom plate 9 is of a cuboid structure and is made of hard aluminum. The tool bottom plate 9 is provided with four threaded holes which are connected and fixed with the bottom plate 1 through bolts. One end of the tool bottom plate 9 is of a step surface structure, two cuboid bosses are arranged on the step surface, and the bosses are assembled with the grooves of the tool 10 in an opposite mode. The tool 10 is of a square aluminum block structure and is made of hard aluminum in a machining mode, the upper portion of the tool is of a groove structure which is formed in a shape similar to a product and used for fixing the product, and a 0.1mm gap is reserved between the tool and the product. The lower part is provided with two groove structures, and the grooves are connected with the bosses of the tool bottom plate 9 and can freely slide on the bosses.

The product is placed on the tool 10, the tool 10 slides along the boss of the tool bottom plate 9 to adjust the position, finally, the copper conductor on the product is aligned with the blade 8, and then the poke rod 5 is moved to drive the transmission rack 3 and the blade 8 to move forwards. While the blade 8 is moving forward, the head of the blade 8 scrapes off a thin layer of oil stains, impurities and the like on the surface of the copper conductor of the product. After impurities, oil stains and the like are scraped, the base material on the surface of the product is clean and flat; is beneficial to ultrasonic welding.