Edge and corner smoothing device for lead-free tin bar processing

Abstract

The utility model discloses an edge and corner grinding device for lead-free tin bar processing, which relates to the technical field of lead-free tin bar processing and comprises a base, two baffles are fixedly mounted on the top surface of the base, a movable support frame is mounted between the two baffles, and a mounting block is slidably connected in the support frame. Through mutual cooperation of the base, the first hydraulic cylinder, the first grinding wheel and the second grinding wheel, the first grinding wheel can be flush with the corner angle of the top face of the lead-free tin bar, and through mutual cooperation of the mounting rod, the movable ring, the spring, the top plate, the supporting plate, the clamping hole and the connecting frame, the second grinding wheel can be flush with the corner angle of the bottom face of the lead-free tin bar. And through mutual cooperation of a second driving motor, a first grinding wheel and a second grinding wheel, the edges and corners of the top face and the bottom face of the lead-free tin bar can be ground at the same time, the grinding effect on the edges and corners of the lead-free tin bar is achieved, and workers can conveniently use the lead-free tin bar subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-free tin bar processing, in particular to an edge and corner grinding device for lead-free tin bar processing. Background Art

[0002] Lead-free tin bar refers to a tin alloy product that does not contain lead and other harmful metal elements, and does not use lead metal in the production process. Lead-free tin bar usually contains other elements, such as copper, silver, antimony, etc. Among them, Sn-0.7Cu is a common lead-free tin bar component. Because it does not contain lead, lead-free tin bar is more friendly to the environment and human health. After melting, the lead-free tin bar has excellent fluidity and wettability, the solder joints are bright, and there is very little oxide slag residue. Lead-free tin bar has strong antioxidant ability, which can reduce the generation of tin slag to a certain extent and reduce waste. It is widely used in electronics, life sciences, food, medicine, cosmetics and other industries, especially suitable for various wave soldering and manual soldering with high quality requirements.

[0003] After searching, it was found that the Chinese patent with the prior art publication number CN214979831U discloses an edge grinding device for tin bar production. The patent sets a grinding sheet and a carrying box, starts a first motor and a second motor, and the output shaft of the second motor drives the grinding sheet to grind the tin bar. At the same time, the output shaft of the first motor drives the reciprocating screw to rotate, and the reciprocating screw drives the sliding body to slide at the first groove of the carrying plate through the threaded sleeve, so that it can cooperate with the carrying box to drive the grinding sheet to grind the tin bar back and forth. At the same time, the nozzle sprays water to cool the grinding sheet, so that the tin bar can be well polished. However, in this scheme, since there are edges and corners on the top and bottom surfaces of the lead-free tin bar, and the grinding sheet is arranged above the lead-free tin bar, it is difficult for the grinding sheet to grind the edges and corners of the top and bottom surfaces of the lead-free tin bar at the same time, which increases the time for grinding the lead-free tin bar and affects the grinding effect of the lead-free tin bar. Therefore, based on the above search and combined with the prior art, a device for grinding edges and corners for lead-free tin bar processing is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an edge and corner grinding device for processing lead-free solder bars to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for grinding edges and corners for processing lead-free tin bars comprises a base, two baffles are fixedly mounted on the top surface of the base, a movable support frame is mounted between the two baffles, a mounting block is slidably connected to the interior of the support frame, a first hydraulic cylinder is fixedly mounted on the bottom surface of the mounting block, a grinding mechanism for grinding the edges and corners of the lead-free tin bar is arranged on the top surface of the base, and a flipping mechanism for flipping the lead-free tin bar is arranged on one side of the baffle.

[0007] Further, the grinding mechanism includes a first grinding wheel, a movable second grinding wheel is provided on the bottom surface of the first grinding wheel, a connecting frame is fixedly installed on the bottom surface of the first grinding wheel, a support plate is fixedly installed on the top surface of the second grinding wheel, the support plate is slidably connected to the connecting frame, a mounting hole is opened on one side of the support plate, a mounting rod is slidably connected to one side of the connecting frame, a top plate is fixedly installed on one end of the mounting rod, a plurality of clamping columns are fixedly installed on one side of the support plate, the top plate is movably clamped with the clamping columns, a movable ring is movably sleeved on the outer circular wall surface of the mounting rod, the movable ring is elastically connected to the mounting rod, and a second driving motor for driving the first grinding wheel to rotate is fixedly installed on the bottom surface of the telescopic shaft of the first hydraulic cylinder.

[0008] Furthermore, a screw rod is rotatably connected inside the support frame, a servo motor for driving the screw rod to rotate is fixedly installed on one side of the interior of the support frame, and one end of the screw rod is rotatably connected to the inner side of the support frame through a bearing.

[0009] Furthermore, the flipping mechanism includes two limit frames, and the two limit frames are both arranged on one side of the two baffles. One side of the baffle is provided with an electric push rod for driving the limit frames to move, and one side of the baffle is fixedly installed with a first drive motor for driving the electric push rod to rotate.

[0010] Furthermore, sliding holes are provided on both sides of the baffle, sliding blocks are fixedly installed on both sides of the support frame, the sliding blocks are slidably connected to the sliding holes, and a second hydraulic cylinder for driving the support frame to move is fixedly installed on one side of the baffle.

[0011] Furthermore, threaded rods are threadedly connected to both sides of the limiting frame, and one end of the threaded rod is connected to a clamping block via a bearing.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The first grinding wheel can be made flush with the edges and corners of the top surface of the lead-free tin bar by cooperating with the provided base, the first hydraulic cylinder, the first grinding wheel and the second grinding wheel. The second grinding wheel can be made flush with the edges and corners of the bottom surface of the lead-free tin bar by cooperating with the provided mounting rod, the movable ring, the spring, the top plate, the support plate, the clamping hole and the connecting frame. The second driving motor, the first grinding wheel and the second grinding wheel can be used to grind the edges and corners of the top and bottom surfaces of the lead-free tin bar at the same time, thereby achieving the grinding effect of the edges and corners of the lead-free tin bar, which is convenient for the staff to use the lead-free tin bar later.

[0014] 2. The lead-free tin bar can be clamped by cooperating with the base, the limit frame and the electric push rod. After the staff polishes the edges and corners on one side of the lead-free tin bar, the staff uses the first drive motor to rotate the lead-free tin bar 180 degrees, thereby turning the lead-free tin bar over, and then polishing the edges and corners on the other side of the lead-free tin bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the support frame structure of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the local structure of A;

[0018] Figure 4 It is a rear view schematic diagram of the support frame structure of the utility model;

[0019] Figure 5 for Figure 4 Schematic diagram of the local structure of B.

[0020] In the figure: 1. base; 2. baffle; 3. limiting hole; 4. support frame; 5. mounting block; 6. grinding mechanism; 7. turning mechanism; 8. first drive motor; 9. electric push rod; 10. limit frame; 11. second drive motor; 12. first hydraulic cylinder; 13. second hydraulic cylinder; 14. first grinding wheel; 15. second grinding wheel; 16. sliding hole; 17. sliding block; 18. connecting frame; 19. support plate; 20. support hole; 21. support block; 22. mounting rod; 23. movable ring; 24. spring; 25. threaded rod; 26. clamping block; 27. screw rod; 28. servo motor; 29. ​​mounting hole; 30. top plate; 31. clamping hole; 32. clamping column; 33. positioning block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In a typical implementation of this application, please refer to Figure 1 to Figure 5 , an edge and corner grinding device for processing lead-free tin bars, comprising a base 1, two baffles 2 are fixedly installed on the top surface of the base 1, a movable support frame 4 is installed between the two baffles 2, a mounting block 5 is slidably connected inside the support frame 4, a first hydraulic cylinder 12 is fixedly installed on the bottom surface of the mounting block 5, a grinding mechanism 6 for grinding the edges and corners of the lead-free tin bar is arranged on the top surface of the base 1, and a flipping mechanism 7 for flipping the lead-free tin bar is arranged on one side of the baffle 2;

[0023] The grinding mechanism 6 includes a first grinding wheel 14, which is arranged on the top surface of the base 1, and a movable second grinding wheel 15 is arranged on the bottom surface of the first grinding wheel 14. The first grinding wheel 14 and the second grinding wheel 15 can grind the edges and corners of the lead-free tin strip. A connecting frame 18 is fixedly installed on the bottom surface of the first grinding wheel 14, and the connecting frame 18 is a U-shaped structure. A support plate 19 is fixedly installed on the top surface of the second grinding wheel 15. The support plate 19 is slidably connected to the connecting frame 18. The connecting frame 18 is provided with a support hole 20. Support blocks 21 are fixedly installed on both sides of the support plate 19. The support block 21 is slidably connected to the support hole 20. The support plate 19 moves inside the connecting frame 18 to drive the support block 21 to slide inside the support hole 20. The support block 21 can limit the movement of the support plate 19;

[0024] A mounting hole 29 is provided on one side of the support plate 19, and a mounting rod 22 is slidably connected to one side of the connecting frame 18. One end of the mounting rod 22 passes through the connecting frame 18 and extends to the inside of the mounting hole 29. A top plate 30 is fixedly installed on one end of the mounting rod 22. When the top plate 30 is placed horizontally on one side of the support plate 19, the position of the support plate 19 can be limited. When the top plate 30 is in a vertical state, the support plate 19 can slide upward along the mounting rod 22. A plurality of clamping columns 32 are fixedly installed on one side of the support plate 19. The top plate 30 is movably clamped with the clamping columns 32. Two clamping holes 31 cooperating with the clamping columns 32 are provided on one side of the top plate 30. The inner circular wall surface of the clamping hole 31 is aligned with the outer circular wall surface of the clamping column 32. The wall surface is movably clamped, and the outer circular wall surface of the mounting rod 22 is movably sleeved with a movable ring 23, and the movable ring 23 is elastically connected to the mounting rod 22. The outer circular wall surface of the mounting rod 22 is movably sleeved with a spring 24, and one end of the spring 24 is fixedly connected to one end of the mounting rod 22, and the other end of the spring 24 is fixedly connected to one end of the movable ring 23. The bottom surface of the telescopic shaft of the first hydraulic cylinder 12 is fixedly installed with a second drive motor 11 for driving the first grinding wheel 14 to rotate, and the bottom surface of the drive shaft of the second drive motor 11 is fixedly connected to the top surface of the first grinding wheel 14. A PLC controller is fixedly installed on one side of the left baffle 2, and the second drive motor 11 and the first hydraulic cylinder 12 are both electrically connected to the PLC controller;

[0025] Through the provided base 1, when the lead-free tin strip on the base 1 is being polished, the staff starts the first hydraulic cylinder 12, and the telescopic shaft of the first hydraulic cylinder 12 moves downward to drive the first polishing wheel 14 and the second polishing wheel 15 to move downward until the first polishing wheel 14 is flush with the corners of the top surface of the lead-free tin strip, and the staff adjusts the position of the second polishing wheel 15 according to the thickness of the lead-free tin strip, and the staff moves the mounting rod 22 outward so that the mounting rod 22 moves forward inside the movable ring 23 and the spring 24 is compressed at the same time, and the outward movement of the mounting rod 22 also drives The top plate 30 moves outward, and the top plate 30 moves outward so that the clamping column 32 on the support plate 19 is separated from the clamping hole 31 on the top plate 30. Without the restriction of the clamping column 32, the staff rotates the mounting rod 22 to drive the top plate 30 to rotate so that the top plate 30 is vertically on one side of the support plate 19, and then the staff moves the support plate 19 upward, so that the support plate 19 moves upward inside the connecting frame 18 and drives the second grinding wheel 15 to move upward at the same time. The staff moves the support plate 19 upward until the second grinding wheel 15 is flush with the corners of the bottom surface of the lead-free solder bar;

[0026] The staff pushes the mounting rod 22 to drive the top plate 30 to move outward and rotates the mounting rod 22 so that the top plate 30 is placed horizontally on one side of the support plate 19. The staff loosens the mounting rod 22. The force of the spring 24 causes the mounting rod 22 to drive the top plate 30 to move backward. The top plate 30 moves backward so that the clamping column 32 on the support plate 19 enters the inside of the clamping hole 31 on the top plate 30, thereby determining the position of the support plate 19 and then determining the position of the second grinding wheel 15. The staff starts the second drive motor 11. The drive shaft of the second drive motor 11 rotates to drive the first grinding wheel 14 and the second grinding wheel 15 to rotate. The first grinding wheel 14 and the second grinding wheel 15 rotate and grind the edges and corners of the top and bottom surfaces of the lead-free tin bar at the same time, shortening the time for grinding the lead-free tin bar and achieving the grinding effect of the edges and corners of the lead-free tin bar, which is convenient for the staff to use the lead-free tin bar later.

[0027] The support frame 4 is internally rotatably connected with a screw rod 27, and a servo motor 28 for driving the screw rod 27 to rotate is fixedly installed on one side of the support frame 4. One end of the screw rod 27 is rotatably connected to the inner side of the support frame 4 through a bearing, and the mounting block 5 is threadedly connected to the screw rod 27. Restriction holes 3 are provided on both sides of the support frame 4, and positioning blocks 33 are fixedly installed on both sides of the mounting block 5. The positioning blocks 33 are slidably connected to the restriction holes 3, and the servo motor 28 is electrically connected to the PLC controller;

[0028] By setting the first grinding wheel 14 and the second grinding wheel 15, when the first grinding wheel 14 and the second grinding wheel 15 grind the edges and corners of the lead-free tin bar, the staff starts the servo motor 28, and the driving shaft of the servo motor 28 rotates to drive the screw rod 27 to rotate. The rotation of the screw rod 27 causes the mounting block 5 to move forward along the screw rod 27 inside the support frame 4. The movement of the mounting block 5 drives the first hydraulic cylinder 12 and the second drive motor 11 to move, and at the same time causes the positioning block 33 to move inside the limiting hole 3. The positioning block 33 can limit the movement of the mounting block 5. The movement of the second drive motor 11 drives the first grinding wheel 14 and the second grinding wheel 15 to move along the edges and corners of the lead-free tin bar, thereby comprehensively grinding the edges and corners of the lead-free tin bar.

[0029] As a preferred implementation in this embodiment, please refer to Figure 1 to Figure 4 The flipping mechanism 7 includes two limit frames 10, both of which are arranged on one side of the two baffles 2. The limit frames 10 are U-shaped structures for clamping lead-free tin bars. One side of the baffle 2 is provided with a limit frame 10 for adjusting the position of the limit frame 10. One end of the telescopic shaft of the electric push rod 9 is fixedly connected to one side of the limit frame 10. One side of the baffle 2 is fixedly installed with a first drive motor 8 for driving the electric push rod 9 to rotate. One end of the drive shaft of the first drive motor 8 passes through the baffle 2 and is fixedly connected to one end of the electric push rod 9. The electric push rod 9 and the limit frame 10 are both electrically connected to the PLC controller;

[0030] Through the provided base 1, the staff places the lead-free tin bar on the top of the base 1, and the staff starts the electric push rod 9, and the telescopic shaft of the electric push rod 9 moves forward to drive the limit frame 10 to move forward until the inner side of the limit frame 10 abuts against the side of the lead-free tin bar, thereby clamping the lead-free tin bar. After the staff polishes the edges and corners of one side of the lead-free tin bar, the staff starts the first drive motor 8, and the drive of the first drive motor 8 drives the electric push rod 9 and the limit frame 10 to rotate, and the rotation of the limit frame 10 drives the lead-free tin bar to rotate 180 degrees, thereby turning the lead-free tin bar over, and then polishing the edges and corners of the other side of the lead-free tin bar;

[0031] Sliding holes 16 are provided on both sides of the baffle 2, sliding blocks 17 are fixedly installed on both sides of the support frame 4, the sliding blocks 17 are slidably connected to the sliding holes 16, and a second hydraulic cylinder 13 for driving the support frame 4 to move is fixedly installed on one side of the baffle 2, and the second hydraulic cylinder 13 is electrically connected to the PLC controller.

[0032] By setting the base 1, the width of the lead-free tin strip on the base 1 is relatively wide, and the staff starts the second hydraulic cylinder 13, and the telescopic shaft of the second hydraulic cylinder 13 moves outward to drive the support frame 4 and the mounting block 5 to move outward, and the support frame 4 moves outward to drive the sliding block 17 to move inside the sliding hole 16 on the baffle 2, and the sliding block 17 can limit the movement of the support frame 4, and the mounting block 5 moves outward through the second drive motor 11 and the first hydraulic cylinder 12 to drive the first grinding wheel 14 and the second grinding wheel 15 to move outward, so as to adjust the positions of the first grinding wheel 14 and the second grinding wheel 15 according to the width of the lead-free tin strip;

[0033] The two sides of the limit frame 10 are threadedly connected with threaded rods 25, and one end of the threaded rod 25 is connected with a clamping block 26 through a bearing. The clamping block 26 is a cylindrical rubber block used to abut against the lead-free tin bar;

[0034] By setting up the limit frame 10, after using the limit frame 10 to clamp the lead-free tin bar, the staff rotates the threaded rod 25. The rotation of the threaded rod 25 drives the inner ring of the bearing to rotate while the clamping block 26 does not rotate. The rotation of the threaded rod 25 also causes the threaded rod 25 to drive the clamping block 26 to move inward until one end of the clamping block 26 abuts against one side of the lead-free tin bar, thereby improving the stability of the limit frame 10 in clamping the lead-free tin bar.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An edge and corner grinding device for processing lead-free tin bars, comprising a base (1), characterized in that: Two baffles (2) are fixedly mounted on the top surface of the base (1); a movable support frame (4) is mounted between the two baffles (2); a mounting block (5) is slidably connected to the interior of the support frame (4); a first hydraulic cylinder (12) is fixedly mounted on the bottom surface of the mounting block (5); a grinding mechanism (6) for grinding the edges of the lead-free tin strip is disposed on the top surface of the base (1); and a flipping mechanism (7) for flipping the lead-free tin strip is disposed on one side of the baffle (2).

2. The device for grinding edges and corners for processing lead-free solder bars according to claim 1, characterized in that: The grinding mechanism (6) comprises a first grinding wheel (14), a movable second grinding wheel (15) is arranged on the bottom surface of the first grinding wheel (14), a connecting frame (18) is fixedly installed on the bottom surface of the first grinding wheel (14), a supporting plate (19) is fixedly installed on the top surface of the second grinding wheel (15), the supporting plate (19) is slidably connected to the connecting frame (18), a mounting hole (29) is opened on one side of the supporting plate (19), and a mounting rod (22) is slidably connected to one side of the connecting frame (18). A top plate (30) is fixedly mounted on one end of the mounting rod (22); a plurality of clamping columns (32) are fixedly mounted on one side of the support plate (19); the top plate (30) is movably clamped with the clamping columns (32); a movable ring (23) is movably sleeved on the outer circular wall surface of the mounting rod (22); the movable ring (23) is elastically connected to the mounting rod (22); and a second driving motor (11) for driving the first grinding wheel (14) to rotate is fixedly mounted on the bottom surface of the telescopic shaft of the first hydraulic cylinder (12).

3. The edge and corner grinding device for lead-free solder bar processing according to claim 1, characterized in that: A screw rod (27) is rotatably connected inside the support frame (4), a servo motor (28) for driving the screw rod (27) to rotate is fixedly installed on one side of the interior of the support frame (4), and one end of the screw rod (27) is rotatably connected to the inner side of the support frame (4) via a bearing.

4. The edge and corner grinding device for processing lead-free solder bars according to claim 1, characterized in that: The flipping mechanism (7) comprises two limit frames (10), the two limit frames (10) are arranged on one side of the two baffles (2), one side of the baffle (2) is provided with an electric push rod (9) for driving the limit frame (10) to move, and one side of the baffle (2) is fixedly mounted with a first drive motor (8) for driving the electric push rod (9) to rotate.

5. The edge and corner grinding device for lead-free solder bar processing according to claim 1, characterized in that: Sliding holes (16) are provided on both sides of the baffle (2), sliding blocks (17) are fixedly installed on both sides of the support frame (4), the sliding blocks (17) are slidably connected to the sliding holes (16), and a second hydraulic cylinder (13) for driving the support frame (4) to move is fixedly installed on one side of the baffle (2).

6. The edge and corner grinding device for processing lead-free solder bars according to claim 4, characterized in that: Threaded rods (25) are threadedly connected to both sides of the limiting frame (10), and one end of the threaded rod (25) is connected to a clamping block (26) via a bearing.

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