Lead frame surface oxidation-resistant and corrosion-resistant coating treatment device

Abstract

The invention relates to the technical field of lead frame surface treatment, in particular to a lead frame surface oxidation-resistant and corrosion-resistant coating treatment device. Comprising a machining platform, and a driving mechanism is arranged on the edge of one side of the top of the machining platform; and the output end of the driving mechanism is in transmission connection with a clamping turnover mechanism. The positioning camera is used for scanning the placement state and the shape structure of the lead frame, the clamping turnover mechanism is controlled to adjust the position, and then a plurality of groups of fifth electric push rods are controlled to drive a plurality of groups of limiting assemblies to independently adjust so as to adapt to the shape of the lead frame; then a plurality of groups of limiting assemblies are controlled to be clamped on the two sides of the lead frame, so that when a worker places the lead frame, the position does not need to be kept consistent every time, the labor intensity of the worker is reduced, meanwhile, it can be guaranteed that the lead frame is kept stable during spraying, displacement generated under high-speed impact of a detergent is avoided, and the working efficiency is improved. And the working quality of the treatment device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of lead frame surface treatment, and particularly relates to a lead frame surface oxidation-resistant and corrosion-resistant coating treatment device. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials (gold wire, aluminum wire, copper wire) to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. In order to improve the oxidation and corrosion resistance of the lead frame, it is necessary to use electroplating to coat the lead frame. The first step of the electroplating method is to clean the surface of the lead frame.

[0003] After searching, in the prior art, Chinese patent announcement number: CN114171487B, announcement date: 2022-07-12, discloses a surface treatment device for an integrated circuit lead frame, including a shell, and spraying mechanisms for spraying the surface of the lead frame are symmetrically arranged on both sides of the shell, and a conveying mechanism for clamping the lead frame and moving it inside the shell is arranged on the inner wall of the shell, and a guide plate is fixed on the inner wall of the shell, and the top surface of the guide plate is inclined. A connecting groove is provided at the lowest position of the guide plate of the shell, and a drain box is fixed on the outer wall of the shell, and the drain box is connected with the interior of the shell through the connecting groove. A filter port is provided on the top surface of the guide plate near the drain box, and a first filter net is fixed inside the filter port; the invention sprays medicine on the lead frame through the spraying mechanism, and filters the medicine in time to prevent impurities from sticking to the surface of the lead frame, which is beneficial to the subsequent processing of the lead frame.

[0004] However, the processing device still has the following defects: The lead frame surface treatment device in the prior art usually treats the lead frame surface by immersion and spraying. However, when fixing an irregularly shaped lead frame, the lead frame is easily displaced under high pressure spraying, thereby reducing the working quality of the treatment device. Summary of the invention

[0005] In view of the above problems, the present invention provides a device for processing oxidation-resistant and corrosion-resistant coating on the surface of a lead frame, comprising a processing platform, a driving mechanism is provided at one edge of the top of the processing platform; a clamping and flipping mechanism is connected to the output end of the driving mechanism; a cleaning groove is provided on the top of the processing platform; a cleaning mechanism is movably penetrated in the cleaning groove; The clamping and flipping mechanism comprises a first shell; a positioning camera is provided at the bottom center of the first shell; and two sets of second mounting plates are symmetrically provided below the first shell; A plurality of fifth electric push rods are evenly spaced on the side walls opposite to the two groups of the second mounting plates; a set of limiter components is transmission-connected to the output end of each group of the fifth electric push rods; The positioning camera scans the placement status and shape of the lead frame, and then controls the clamping and flipping mechanism to make corresponding adjustments and clamp the lead frame for transfer.

[0006] Furthermore, a positioning plate is provided on the top of the processing platform; an adjustment mechanism is provided on the bottom of the processing platform; a control panel is provided on one side wall of the processing platform; a liquid storage chamber is provided in the processing platform; an installation chamber is provided above the liquid storage chamber; a plurality of groups of nozzles are provided at equal intervals on the inner wall of one side of the installation chamber close to the cleaning tank; and each group of nozzles is movable throughout the cleaning mechanism.

[0007] Furthermore, a high-pressure pump is provided in the installation chamber; the input end of the high-pressure pump is connected to the liquid storage chamber, and the output end is connected to a plurality of groups of nozzles; a telescopic chamber is provided above the liquid storage chamber; the top of the telescopic chamber is connected to the cleaning mechanism, and the bottom is connected to the liquid storage chamber; a filter box is movably penetrated on the inner wall of one side of the telescopic chamber.

[0008] Furthermore, the adjustment mechanism includes a base; a storage groove is provided at the bottom of the base; a support plate is slidably connected in the storage groove along the vertical direction; a plurality of groups of universal wheels are provided at the bottom edge of the support plate; a horizontal sensor is provided at the bottom center of the support plate; a second electric push rod is provided at the top center of the storage groove; the output end of the second electric push rod is transmission-connected to the support plate; a group of third electric push rods are respectively provided at the top corners of the support plate; the output end of each group of the third electric push rods extends to the bottom of the support plate, and is ball-connected with a group of pads.

[0009] Furthermore, several groups of transmission rods are symmetrically and movably penetrated on both side walls of the first shell; several groups of the transmission rods on the same side are each provided with a group of first mounting plates at one end away from the first shell; two groups of fourth electric push rods are symmetrically installed on the two groups of the first mounting plates; two groups of flip motors are symmetrically connected to the output ends of the two groups of the fourth electric push rods; each group of the flip motors is connected to the corresponding group of second mounting plates.

[0010] Furthermore, an adjusting chamber is provided in the first shell; an adjusting motor is provided on an inner wall of one side of the adjusting chamber; two groups of screw rods are transmission-connected to the output end of the adjusting motor; the thread directions of the two groups of screw rods are opposite, and the central axis coincides with the central axis of the output end of the adjusting motor; two groups of transmission plates are slidingly connected to the top inner wall of the adjusting chamber; the two groups of transmission plates are respectively threadedly connected to a group of screw rods; the two groups of transmission plates are respectively transmission-connected to several groups of transmission rods on the corresponding side.

[0011] Furthermore, the cleaning mechanism includes a second shell; two sets of handles are symmetrically provided at the two side edges of the top of the second shell; a groove is provided at the top of the second shell; the bottom of the groove is set as an inclined surface; an installation groove is provided at the bottom of the groove; and the installation groove is connected to the telescopic cavity.

[0012] Furthermore, two groups of transmission rollers are provided in the installation groove; a cleaning belt is provided in the installation groove; the cleaning belt is sleeved on the outer walls of the two groups of transmission rollers; a plurality of groups of scrapers are provided at equal intervals at the bottom of the installation groove; each group of scrapers is movably in contact with the outer wall of the cleaning belt.

[0013] Furthermore, the limiting assembly includes a clamping plate; a pressure sensor is provided at the center of one side wall of the clamping plate; two groups of fixing plates are symmetrically provided at the top and bottom of one side wall of the clamping plate; and a plurality of groups of springs are evenly spaced on the opposite side walls of the two groups of fixing plates.

[0014] Furthermore, a group of electromagnets are provided at one end of several groups of springs on the same side close to the pressure sensor; a group of limiting rollers are provided on the side walls opposite to the two groups of electromagnets; a group of dampers are provided in each group of springs; and the two ends of each group of dampers are respectively connected to a corresponding group of fixed plates and electromagnets.

[0015] The beneficial effects of the present invention are: 1. By using a positioning camera to scan the placement state and shape structure of the lead frame, and controlling the clamping and flipping mechanism to adjust the position, then controlling several groups of fifth electric push rods to drive several groups of limit assemblies to adjust separately to adapt to the shape of the lead frame, and then controlling several groups of limit assemblies to clamp on both sides of the lead frame, it is unnecessary for the staff to keep the position consistent every time when placing the lead frame, thereby reducing the labor intensity of the staff, and at the same time ensuring that the lead frame remains stable during spraying, avoiding displacement under the high-speed impact of the detergent, and improving the working quality of the processing device.

[0016] 2. When several groups of limit assemblies clamp the lead frame, both sides of the lead frame contact the pressure sensor of the clamping plate. The pressure sensor senses the pressure and energizes the two groups of electromagnets. After being energized, the two groups of electromagnets generate magnetism and adsorb each other, so that the two groups of limit rollers contact the top and bottom of the lead frame respectively. The damper can limit the two groups of electromagnets to prevent the adsorption speed from being too fast and hitting the lead frame. After ensuring the stability of the lead frame, the two groups of flip motors can be used to drive the lead frame to rotate at high speed, and the centrifugal force can be used to shake off the detergent attached to the surface of the lead frame, avoiding the need for drying work and improving the working efficiency of the processing device.

[0017] 3. The inclination angle of the lead frame is adjusted by controlling the clamping and flipping mechanism, and then the lead frame is driven down so that one side of the lead frame is attached to the surface of the cleaning belt. The cleaning belt rotates to clean the surface of the lead frame and removes tightly adhered impurities. At the same time, several groups of scrapers at the bottom of the mounting groove can scrape off the impurities on the surface of the cleaning belt. After cleaning both sides of the lead frame, spraying is performed again. The sprayed detergent can flush the scraped impurities into the filter box along the bottom slope of the mounting groove for filtration, and then re-enter the liquid storage chamber to avoid secondary pollution.

[0018] 4. By controlling the second electric push rod to drive the support plate to descend, several groups of universal wheels are in contact with the ground to lift the processing device. At this time, the processing device can be moved. After moving to a suitable position, several groups of universal wheels can be controlled to be re-stored into the storage groove, and then several groups of third electric push rods are controlled to drive the pad to descend and contact with the ground. The height of the processing device can be adjusted according to usage requirements, and when the ground is uneven, the horizontal sensor can detect the horizontal state of the processing device, and keep the processing device level by individually controlling the extension and retraction of several groups of third electric push rods, thereby improving the convenience of using the processing device.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a processing device according to an embodiment of the present invention is shown; Figure 2 shows an exploded schematic diagram of a processing device according to an embodiment of the present invention; Figure 3 A schematic left sectional view of a processing platform according to an embodiment of the present invention is shown; Figure 4 It shows a schematic structural diagram of a clamping and flipping mechanism according to an embodiment of the present invention; Figure 5 A schematic top cross-sectional view of a clamping and flipping mechanism according to an embodiment of the present invention is shown; Figure 6A schematic structural diagram of a cleaning mechanism according to an embodiment of the present invention is shown; Figure 7 A schematic left sectional view of a cleaning mechanism according to an embodiment of the present invention is shown; Figure 8 A schematic structural diagram of a position limiting assembly according to an embodiment of the present invention is shown.

[0022] In the figure: 1. Processing platform; 2. Driving mechanism; 3. Adjusting mechanism; 4. Clamping and flipping mechanism; 5. Cleaning mechanism; 6. Positioning and placing plate; 7. Control panel; 8. Cleaning tank; 9. Liquid storage chamber; 10. Installation chamber; 11. Slide; 12. Sliding block; 13. Nozzle; 14. High-pressure pump; 15. Telescopic chamber; 16. Filter box; 201. First electric slide; 202. Support column; 203. Horizontal plate; 204. Second electric slide; 205. First electric push rod; 206. Electric turntable; 301. Base; 302. Storage tank; 303. Support plate; 304. Universal wheel; 305. Second electric push rod; 306. Third electric push rod; 307. Level sensor; 308. Pad Plate; 401, first shell; 402, transmission rod; 403, first mounting plate; 404, fourth electric push rod; 405, flip motor; 406, second mounting plate; 407, fifth electric push rod; 408, limit assembly; 409, adjustment chamber; 410, adjustment motor; 411, lead screw; 412, transmission plate; 413, positioning camera; 501, second shell; 502, handle; 503, groove; 504, mounting groove; 505, cleaning belt; 506, transmission roller; 507, scraper; 4081, clamping plate; 4082, pressure sensor; 4083, fixing plate; 4084, spring; 4085, electromagnet; 4086, limit roller; 4087, damper. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The embodiment of the present invention provides a device for processing oxidation-resistant and corrosion-resistant coating on the surface of a lead frame, comprising a processing platform 1. For example, Figure 1 and Figure 3As shown, an adjustment mechanism 3 is provided at the bottom of the processing platform 1; a driving mechanism 2 is provided at one edge of the top side of the processing platform 1; a clamping and flipping mechanism 4 is connected to the output end of the driving mechanism 2; a control panel 7 is provided on one side wall of the processing platform 1; a positioning plate 6 is provided on the top of the processing platform 1; a cleaning groove 8 is provided on the top of the processing platform 1; a cleaning mechanism 5 is movably penetrated in the cleaning groove 8; a liquid storage chamber 9 is provided in the processing platform 1; an installation chamber 10 is provided above the liquid storage chamber 9; a plurality of groups of nozzles 13 are provided at equal intervals on the inner wall of the installation chamber 10 on one side close to the cleaning groove 8; each group The nozzles 13 are all movable and penetrate the cleaning mechanism 5; a slide groove 11 is opened on the top of the processing platform 1; a slider 12 is connected with a damping sliding in the slide groove 11; the bottom end of the slider 12 extends into the installation chamber 10 and is transmission-connected with a plurality of groups of nozzles 13; a high-pressure pump 14 is provided in the installation chamber 10; the input end of the high-pressure pump 14 is connected with the liquid storage chamber 9, and the output end is connected with a plurality of groups of nozzles 13; a telescopic chamber 15 is provided above the liquid storage chamber 9; the top of the telescopic chamber 15 is connected with the cleaning mechanism 5, and the bottom is connected with the liquid storage chamber 9; a filter box 16 is movably penetrated on the inner wall of one side of the telescopic chamber 15.

[0025] When the lead frame is plated, the personnel place the lead frame on the top of the positioning plate 6, and then control the driving mechanism 2 to drive the clamping and flipping mechanism 4 to clamp and transfer the lead frame to the cleaning mechanism 5. The high-pressure pump 14 extracts the detergent in the liquid storage chamber 9 and sprays it through a plurality of nozzles 13 to spray the lead frame. After spraying, the clamping and flipping mechanism 4 is controlled to adjust the angle of the lead frame and clean the single side of the lead frame through the cleaning mechanism 5. After the single-side cleaning is completed, the clamping and flipping mechanism 4 is controlled to flip the lead frame to clean the other side. The detergent passes through the cleaning mechanism 5 and enters the telescopic cavity 15 to be filtered by the filter box 16. The impurities in the detergent are filtered and flow back into the liquid storage chamber 9 to form a cycle. After the processing device has worked for a period of time, the filter box 16 can be extracted to process the impurities. The cleaning mechanism 5 can be taken out by driving a plurality of nozzles 13 to retract into the installation chamber 10 through the sliding slider 12, so as to facilitate maintenance.

[0026] For example, Figure 2As shown, the driving mechanism 2 includes a first electric slide 201; the first electric slide 201 is installed at the top side edge of the processing platform 1; the output end of the first electric slide 201 is transmission-connected with a support column 202; the top of the support column 202 is provided with a cross plate 203; the bottom of the cross plate 203 is provided with a second electric slide 204; the output end of the second electric slide 204 is transmission-connected with a first electric push rod 205; the output end of the first electric push rod 205 is transmission-connected with an electric turntable 206; the bottom of the electric turntable 206 is transmission-connected with the top of the clamping and flipping mechanism 4.

[0027] When transferring the lead frame, the cooperation between the first electric slide 201 and the second electric slide 204 can drive the clamping and flipping mechanism 4 to move in the horizontal direction, the first electric push rod 205 can drive the clamping and flipping mechanism 4 to move in the vertical direction, and the electric turntable 206 can drive the clamping and flipping mechanism 4 to rotate horizontally.

[0028] For example, Figure 3 As shown, the adjustment mechanism 3 includes a base 301; a storage groove 302 is provided at the bottom of the base 301; a support plate 303 is slidably connected in the vertical direction in the storage groove 302; a plurality of groups of universal wheels 304 are provided at the bottom edge of the support plate 303; a horizontal sensor 307 is provided at the bottom center of the support plate 303; a second electric push rod 305 is provided at the top center of the storage groove 302; the output end of the second electric push rod 305 is transmission-connected with the support plate 303; a group of third electric push rods 306 are respectively provided at the top corners of the support plate 303; the output end of each group of the third electric push rods 306 extends to the bottom of the support plate 303, and is ball-connected with a group of pads 308.

[0029] Before the processing device works, the second electric push rod 305 is controlled to drive the support plate 303 to descend, so that several groups of universal wheels 304 are in contact with the ground to lift the processing device. At this time, the processing device can be moved. After moving to a suitable position, several groups of universal wheels 304 can be controlled to be re-stored in the storage groove 302, and then several groups of third electric push rods 306 are controlled to drive the pad 308 to descend and contact with the ground. The height of the processing device can be adjusted according to usage requirements, and when the ground is uneven, the horizontal sensor 307 can detect the horizontal state of the processing device, and keep the processing device level by individually controlling the extension and retraction of several groups of third electric push rods 306, thereby improving the convenience of using the processing device.

[0030] For example, Figure 4 and Figure 5As shown, the clamping and flipping mechanism 4 includes a first shell 401; a positioning camera 413 is provided at the bottom center of the first shell 401; a plurality of groups of transmission rods 402 are symmetrically and movably penetrated on both side walls of the first shell 401; a group of first mounting plates 403 are provided at one end of the plurality of groups of transmission rods 402 on the same side away from the first shell 401; two groups of fourth electric push rods 404 are symmetrically installed on the two groups of the first mounting plates 403; two groups of flipping motors 405 are symmetrically connected to the output ends of the two groups of the fourth electric push rods 404; a group of second mounting plates 406 are connected to the output end of each group of the flipping motors 405; each group of the second mounting plates 406 is connected to a side wall away from the corresponding group of flipping motors 405 A plurality of fifth electric push rods 407 are evenly spaced on the top; a group of limit assemblies 408 are transmission-connected to the output end of each group of the fifth electric push rods 407; an adjusting cavity 409 is provided in the first shell 401; an adjusting motor 410 is provided on the inner wall of one side of the adjusting cavity 409; two groups of screw rods 411 are transmission-connected to the output end of the adjusting motor 410; the thread directions of the two groups of screw rods 411 are opposite, and the central axis coincides with the central axis of the output end of the adjusting motor 410; two groups of transmission plates 412 are slidably connected to the top inner wall of the adjusting cavity 409; the two groups of transmission plates 412 are respectively threadedly connected to a group of screw rods 411; the two groups of transmission plates 412 are respectively transmission-connected to a plurality of groups of transmission rods 402 on the corresponding side.

[0031] When the lead frame is transferred, the lead frame is placed on the top of the positioning and placement plate 6, and then the driving mechanism 2 drives the clamping and flipping mechanism 4 to move to the top of the positioning and placement plate 6. The positioning camera 413 can scan the placement state and shape structure of the lead frame, and control the driving mechanism 2 to adjust the position of the clamping and flipping mechanism 4, and then control several groups of fifth electric push rods 407 to drive several groups of limit assemblies 408 to adjust separately to adapt to the shape of the lead frame, and then control the adjustment motor 410 to drive two groups of screw rods 411 to rotate. Under the threaded connection relationship between the two groups of screw rods 411 and the two groups of transmission plates 412, the two groups of transmission plates 412 drive the two groups of first mounting plates 403 to move toward the opposite side through the several groups of transmission rods 402, so that the several groups of limit assemblies 408 are clamped on both sides of the lead frame, and no matter what the shape of the lead frame is, the clamping and flipping mechanism 4 can complete the clamping and fixing work of the lead frame, avoiding the displacement of the lead frame during high-pressure spraying, and improving the working quality of the processing device. After completing the surface cleaning of the lead frame, two groups of fourth electric push rods 404 can be controlled to drive the lead frame down to make room for flipping or angle adjustment. Several groups of limit assemblies 408 can enhance the fixing effect of the lead frame. Then, two groups of flip motors 405 are controlled to drive the lead frame to rotate, and the residual detergent is thrown off by centrifugal force, thereby avoiding the need for drying and improving the working efficiency of the processing device.

[0032] For example, Figure 6 and Figure 7 As shown, the cleaning mechanism 5 includes a second shell 501; two groups of handles 502 are symmetrically provided at the edges of the top two sides of the second shell 501; a groove 503 is provided at the top of the second shell 501; the bottom of the groove 503 is set as an inclined surface; a mounting groove 504 is provided at the bottom of the groove 503; the mounting groove 504 is connected with the telescopic cavity 15; two groups of transmission rollers 506 are provided in the mounting groove 504; a cleaning belt 505 is provided in the mounting groove 504; the cleaning belt 505 is sleeved on the outer walls of the two groups of transmission rollers 506; a plurality of groups of scrapers 507 are evenly spaced at the bottom of the mounting groove 504; each group of scrapers 507 is movably abutted against the outer wall of the cleaning belt 505.

[0033] When performing surface treatment on the lead frame, the clamping and flipping mechanism 4 adjusts the inclination angle of the lead frame, and then drives the lead frame down so that one side of the lead frame is in contact with the surface of the cleaning belt 505. The two sets of drive rollers 506 are controlled to drive the cleaning belt 505 to rotate to clean the surface of the lead frame and remove tightly adhered impurities. After cleaning both sides of the lead frame, spraying is performed again. At the same time, several sets of scrapers 507 at the bottom of the mounting groove 504 can scrape off impurities on the surface of the cleaning belt 505. The detergent flushes the scraped impurities into the filter box 16 along the inclined surface for filtering to avoid secondary pollution.

[0034] For example, Figure 8 As shown, the limiting assembly 408 includes a clamping plate 4081; a pressure sensor 4082 is provided at the center of one side wall of the clamping plate 4081; two groups of fixing plates 4083 are symmetrically provided at the top and bottom of one side wall of the clamping plate 4081; a plurality of groups of springs 4084 are evenly spaced on opposite side walls of the two groups of fixing plates 4083; a group of electromagnets 4085 are provided at one end of the plurality of groups of springs 4084 on the same side close to the pressure sensor 4082; a group of limiting rollers 4086 are provided on opposite side walls of the two groups of electromagnets 4085; a group of dampers 4087 are provided in each group of springs 4084; and the two ends of each group of dampers 4087 are respectively connected to a corresponding group of fixing plates 4083 and electromagnets 4085.

[0035] When the plurality of groups of limiting components 408 clamp the lead frame, the two sides of the lead frame contact the pressure sensor 4082 of the clamping plate 4081, and the pressure sensor 4082 senses the pressure and energizes the two groups of electromagnets 4085. After being energized, the two groups of electromagnets 4085 generate magnetism and adsorb each other, so that the two groups of limiting rollers 4086 respectively contact the top and bottom of the lead frame, and the damper 4087 can limit the two groups of electromagnets 4085 to prevent the adsorption speed from hitting the lead frame too fast. The two groups of limiting rollers 4086 can limit the lead frame to prevent the lead frame from escaping from the clamping and flipping mechanism 4 during rotation and drying, and when the plurality of groups of limiting components 408 contact the clamping of the lead frame, the limiting rollers 4086 can reduce the damage of the friction to the lead frame. When the lead frame is separated from the pressure sensor 4082, the two groups of electromagnets 4085 are powered off and demagnetized and reset under the elastic force of the spring 4084.

[0036] By controlling the clamping and flipping mechanism 4 to move to the top of the lead frame, the positioning camera 413 scans the placement state and shape structure of the lead frame, and the driving mechanism 2 is controlled to adjust the position of the clamping and flipping mechanism 4, and then controlling several groups of fifth electric push rods 407 to drive several groups of limit assemblies 408 to adjust separately to adapt to the shape of the lead frame, and then controlling several groups of limit assemblies 408 to clamp on both sides of the lead frame, it is possible for the staff to place the lead frame without having to keep the position consistent every time, thereby reducing the labor intensity of the staff. At the same time, no matter what the shape of the lead frame is, the clamping and flipping mechanism 4 can complete the clamping and fixing work of the lead frame, thereby avoiding displacement of the lead frame during high-pressure spraying, and improving the working quality of the processing device.

[0037] When several groups of limiting components 408 clamp the lead frame, both sides of the lead frame abut against the pressure sensor 4082 of the clamping plate 4081. The pressure sensor 4082 senses the pressure and energizes the two groups of electromagnets 4085. After being energized, the two groups of electromagnets 4085 generate magnetism and attract each other, so that the two groups of limiting rollers 4086 respectively abut against the top and bottom of the lead frame. The damper 4087 can limit the two groups of electromagnets 4085 to prevent the adsorption speed from being too fast and hitting the lead frame. After ensuring the stability of the lead frame, the two groups of flip motors 405 can be used to drive the lead frame to rotate at a high speed, and the centrifugal force can be used to shake off the detergent attached to the surface of the lead frame, thereby avoiding the need for drying work and improving the working efficiency of the processing device.

[0038] The inclination angle of the lead frame is adjusted by controlling the clamping and flipping mechanism 4, and then the lead frame is driven to descend so that one side of the lead frame is attached to the surface of the cleaning belt 505. The cleaning belt 505 rotates to clean the surface of the lead frame and removes tightly adhered impurities. At the same time, several groups of scrapers 507 at the bottom of the mounting groove 504 can scrape off the impurities on the surface of the cleaning belt 505. After cleaning both sides of the lead frame, the spraying operation is performed again. The sprayed detergent can flush the scraped impurities into the filter box 16 along the bottom slope of the mounting groove 504 for filtration, and then re-enter the liquid storage chamber 9, so as to avoid secondary contamination.

[0039] By controlling the second electric push rod 305 to drive the support plate 303 to descend, several groups of universal wheels 304 are made to contact the ground to lift the processing device. At this time, the processing device can be moved. After moving to a suitable position, several groups of universal wheels 304 can be controlled to be re-stored into the storage groove 302, and then several groups of third electric push rods 306 are controlled to drive the pad 308 to descend and contact the ground. The height of the processing device can be adjusted according to usage requirements, and when the ground is uneven, the horizontal sensor 307 can detect the horizontal state of the processing device, and keep the processing device level by individually controlling the extension and retraction of several groups of third electric push rods 306, thereby improving the convenience of using the processing device.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for processing oxidation-resistant and corrosion-resistant coating on the surface of a lead frame, comprising a processing platform (1), characterized in that: A driving mechanism (2) is provided at one edge of the top of the processing platform (1); a clamping and flipping mechanism (4) is transmission-connected to the output end of the driving mechanism (2); a cleaning groove (8) is provided at the top of the processing platform (1); a cleaning mechanism (5) is movably penetrated in the cleaning groove (8); The clamping and flipping mechanism (4) comprises a first shell (401); a positioning camera (413) is provided at the bottom center of the first shell (401); and two sets of second mounting plates (406) are symmetrically provided below the first shell (401); A plurality of groups of fifth electric push rods (407) are evenly spaced on opposite side walls of the two groups of the second mounting plates (406); a group of limiter components (408) are transmission-connected to the output end of each group of the fifth electric push rods (407); The positioning camera (413) scans the placement state and shape of the lead frame, and then controls the clamping and flipping mechanism (4) to make corresponding adjustments and clamp the lead frame to perform transfer work.

2. The lead frame surface oxidation-resistant and corrosion-resistant coating treatment device according to claim 1, characterized in that: A positioning plate (6) is provided on the top of the processing platform (1); an adjustment mechanism (3) is provided on the bottom of the processing platform (1); a control panel (7) is provided on one side wall of the processing platform (1); a liquid storage chamber (9) is provided inside the processing platform (1); an installation chamber (10) is provided above the liquid storage chamber (9); a plurality of groups of nozzles (13) are provided at equal intervals on an inner wall of a side of the installation chamber (10) close to the cleaning tank (8); each group of nozzles (13) is movable and runs through the cleaning mechanism (5).

3. The lead frame surface oxidation-resistant and corrosion-resistant coating treatment device according to claim 2, characterized in that: A high-pressure pump (14) is provided in the installation chamber (10); an input end of the high-pressure pump (14) is in communication with a liquid storage chamber (9), and an output end is in communication with a plurality of groups of nozzles (13); a telescopic chamber (15) is provided above the liquid storage chamber (9); a top of the telescopic chamber (15) is in communication with a cleaning mechanism (5), and a bottom of the telescopic chamber (15) is in communication with the liquid storage chamber (9); a filter box (16) is movably penetrated through an inner wall of one side of the telescopic chamber (15).

4. The lead frame surface oxidation-resistant and corrosion-resistant coating treatment device according to claim 2, characterized in that: The adjustment mechanism (3) comprises a base (301); a receiving groove (302) is provided at the bottom of the base (301); a support plate (303) is slidably connected in a vertical direction in the receiving groove (302); a plurality of groups of universal wheels (304) are provided at the bottom edge of the support plate (303); a level sensor (307) is provided at the bottom center of the support plate (303); a second electric push rod (305) is provided at the top center of the receiving groove (302); an output end of the second electric push rod (305) is transmission-connected to the support plate (303); a group of third electric push rods (306) are respectively provided at the top corners of the support plate (303); the output end of each group of the third electric push rods (306) extends to the bottom of the support plate (303) and is ball-connected to a group of pads (308).

5. The lead frame surface oxidation-resistant and corrosion-resistant coating treatment device according to claim 1, characterized in that: A plurality of groups of transmission rods (402) are symmetrically and movably penetrated on both side walls of the first shell (401); a group of first mounting plates (403) are provided at the ends of the plurality of groups of transmission rods (402) on the same side away from the first shell (401); two groups of fourth electric push rods (404) are symmetrically mounted on the two groups of the first mounting plates (403); two groups of flip motors (405) are symmetrically and transmission-connected on the output ends of the two groups of the fourth electric push rods (404); and each group of the flip motors (405) is transmission-connected to a corresponding group of second mounting plates (406).

6. The device for treating the surface of a lead frame with an oxidation-resistant and corrosion-resistant coating according to claim 5, characterized in that: An adjusting chamber (409) is provided in the first shell (401); an adjusting motor (410) is provided on an inner wall of one side of the adjusting chamber (409); two groups of screw rods (411) are drivingly connected to the output end of the adjusting motor (410); the thread directions of the two groups of screw rods (411) are opposite, and the central axis coincides with the central axis of the output end of the adjusting motor (410); two groups of transmission plates (412) are slidably connected to the top inner wall of the adjusting chamber (409); the two groups of transmission plates (412) are respectively threadedly connected to a group of screw rods (411); and the two groups of transmission plates (412) are respectively drivingly connected to a plurality of groups of transmission rods (402) on the corresponding side.

7. The device for treating the surface of a lead frame with an oxidation-resistant and corrosion-resistant coating according to claim 1, characterized in that: The cleaning mechanism (5) comprises a second shell (501); two sets of handles (502) are symmetrically provided at the edges of both sides of the top of the second shell (501); a groove (503) is provided at the top of the second shell (501); the bottom of the groove (503) is arranged as an inclined surface; a mounting groove (504) is provided at the bottom of the groove (503); and the mounting groove (504) is communicated with the telescopic cavity (15).

8. The device for treating the surface of a lead frame with an oxidation-resistant and corrosion-resistant coating according to claim 7, characterized in that: Two groups of transmission rollers (506) are arranged in the installation groove (504); a cleaning belt (505) is arranged in the installation groove (504); the cleaning belt (505) is sleeved on the outer walls of the two groups of transmission rollers (506); a plurality of groups of scrapers (507) are arranged at equal intervals at the bottom of the installation groove (504); each group of scrapers (507) is movably in contact with the outer wall of the cleaning belt (505).

9. The device for treating the surface of a lead frame with an oxidation-resistant and corrosion-resistant coating according to claim 1, characterized in that: The limit assembly (408) comprises a clamping plate (4081); a pressure sensor (4082) is provided at the center of a side wall of the clamping plate (4081); two groups of fixing plates (4083) are symmetrically provided at the top and bottom of a side wall of the clamping plate (4081); and a plurality of groups of springs (4084) are evenly spaced on opposite side walls of the two groups of fixing plates (4083).

10. The device for treating the surface of a lead frame with an oxidation-resistant and corrosion-resistant coating according to claim 9, characterized in that: A group of electromagnets (4085) are provided at one end of the plurality of groups of springs (4084) on the same side close to the pressure sensor (4082); a group of limiting rollers (4086) are provided on the opposite side walls of the two groups of electromagnets (4085); a group of dampers (4087) are provided in each group of springs (4084); and both ends of each group of dampers (4087) are respectively connected to a corresponding group of fixing plates (4083) and electromagnets (4085).

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