Shell grinding equipment for magnetic head production

Abstract

The invention relates to the technical field of magnetic head polishing, in particular to shell polishing equipment for magnetic head production, which comprises a machine table, a telescopic driving part I, a fixed table, a loading disc, a fixed assembly, a movable frame, a telescopic driving part II and the like, two first telescopic driving pieces are fixedly connected to the machine table. The telescopic ends of all the first telescopic driving pieces are jointly and fixedly connected with a fixed table. The fixed table is connected with a loading disc for loading a magnetic head shell; the loading disc is provided with a fixing assembly used for fixing a magnetic head shell. The loading disc is slidably connected with a movable frame used for pushing the magnetic head shell. A plurality of telescopic driving pieces II are arranged on the loading disc; the telescopic end of each second telescopic driving piece is fixedly connected with the movable frame. The movable frame pushes the magnetic head shell to move, so that the contact part of the fixed part and the magnetic head shell is exposed for grinding, a grinding blind area of the magnetic head shell is prevented, and the grinding effect of the contact part of the fixed part and the magnetic head shell is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic head grinding, and in particular to a shell grinding device used for magnetic head production. Background Art

[0002] During the production process of the magnetic head shell of the money counter, some burrs are often formed on the surface of the magnetic head shell. These burrs will affect the assembly accuracy of the magnetic head and other components, so they need to be removed by grinding. Since the magnetic head shell of the money counter is in the shape of a cover, the prior art usually uses a manual method of grinding the magnetic head shell by contacting the magnetic head shell with a high-speed rotating grinding brush. However, this grinding method cannot grind the concave and convex surfaces of the cover-shaped magnetic head shell at the same time, and can only grind one side before grinding the other side, resulting in low grinding efficiency and reducing the production efficiency of the magnetic head shell.

[0003] Furthermore, when the polishing brush is used to polish the magnetic head housing, the polishing debris adheres to the polishing bristles, so that the polishing bristles carry the debris to polish the housing, resulting in over-polishing, which reduces the polishing effect of the magnetic head housing. Summary of the invention

[0004] In order to overcome the shortcomings that the existing grinding brush cannot grind the concave and convex surfaces of a cover-shaped magnetic head shell at the same time, the grinding efficiency is low, and at the same time, the grinding brush bristles carry debris to grind the shell, resulting in over-grinding, which reduces the grinding effect of the magnetic head shell, the present invention provides a shell grinding device for magnetic head production.

[0005] The technical scheme of the present invention is: a shell polishing device for magnetic head production, comprising a machine table, a telescopic driving member 1 and a fixed table; two telescopic driving members 1 are fixedly connected to the machine table; a fixed table is fixedly connected to the telescopic ends of all the telescopic driving members 1; it also includes a loading plate, a fixed component, a movable frame, a telescopic driving member 2, an external polishing component, an internal polishing component and a suction pipe; a loading plate for loading the magnetic head shell is connected to the fixed table; a cavity is formed between the lower side of the loading plate and the upper side of the fixed table; a plurality of through grooves in a rectangular array are opened on the loading plate, and the through grooves are connected to the cavity; a fixed plate for fixing the magnetic head shell is provided on the loading plate A fixed component; a movable frame for pushing the magnetic head shell is slidably connected to the loading disk; a plurality of shifting blocks are arranged on the movable frame, and each shifting block is directly opposite to a through slot; a hollow slot is opened in the middle of each shifting block; a plurality of telescopic driving members 2 are arranged on the loading disk; the telescopic end of each telescopic driving member 2 is fixedly connected to the movable frame; an external polishing component for polishing the magnetic head shell is arranged on the machine table; an internal polishing component for polishing the inner wall of the magnetic head shell is arranged on the loading disk; a suction pipe for sucking polishing debris is connected to the machine table; the suction pipe is connected to an external suction device; the suction pipe is communicated with the cavity between the fixed table and the loading disk.

[0006] As a preferred technical solution of the present invention, the fixing assembly includes a fixing rod and an elastic member; a plurality of sliding grooves are provided on the loading disk; a fixing rod for fixing the head housing is slidably connected in each sliding groove; a plurality of fixing parts are provided on each fixing rod; the upper end of each fixing part penetrates upwardly through the upper side of the loading disk; every four adjacent fixing parts form a group; a plurality of elastic members are fixedly connected to each fixing rod; and each elastic member is fixedly connected to the corresponding sliding groove.

[0007] As a preferred technical solution of the present invention, the external grinding component includes a slide rail, an electric slider, a fixed frame, a grinding brush and a servo motor; two slide rails are fixedly connected to the machine platform; each slide rail is slidably connected to an electric slider; all the electric sliders are commonly fixed to a fixed frame; a number of grinding brushes for grinding the head shell are rotatably connected to the fixed frame; a servo motor is fixedly connected to the fixed frame; each grinding brush is fixedly connected to the output end of the servo motor.

[0008] As a preferred technical solution of the present invention, the grinding brush is set in an I-shape, and each grinding brush is provided with a plurality of side grinding parts for grinding the side of the head shell, and the side grinding parts are located on the two sides of the inner side of the I-shaped grinding brush facing each other.

[0009] As a preferred technical solution of the present invention, the internal grinding component includes a fixed block, a direct-drive motor, a rotating shaft, two grinding brushes, gears and a synchronous belt; a fixed block is fixedly connected to the loading disk; a direct-drive motor is fixedly connected to the fixed block; a number of rotating shafts are rotatably connected to the loading disk; each rotating shaft is fixedly connected to a number of two grinding brushes for grinding the inner wall of the magnetic head housing; each of the two grinding brushes is located in a corresponding through groove; a gear is fixedly connected to each rotating shaft; the output end of the direct-drive motor is fixedly connected to one of the gears; and a synchronous belt is commonly connected to all the gears.

[0010] As a preferred technical solution of the present invention, the upper end of each fixing portion is configured as an inclined surface.

[0011] As a preferred technical solution of the present invention, each shift block is made of high-strength material.

[0012] As a preferred technical solution of the present invention, each shift block is provided with a plurality of combing rods for combing the polishing brush, and the combing rods on each shift block are arranged in a comb teeth shape.

[0013] As a preferred technical solution of the present invention, it also includes a lever; a lever for pushing apart the two grinding brushes is fixedly connected to the lower part of each through slot.

[0014] As a preferred technical solution of the present invention, it also includes a tilting block; except for the last row of shifting blocks, the rear side of each of the remaining shifting blocks is fixed with a plurality of tilting blocks for tilting the head shell for unloading; the position of each tilting block is directly opposite to the adjacent fixed part; the rear end of each tilting block is provided with a wedge surface that cooperates with the inclined surface of the upper end of the fixed part.

[0015] The beneficial effects are as follows: the present invention realizes that the movable frame is used to push the magnetic head shell to move, thereby exposing the contact portion between the fixed portion and the magnetic head shell for polishing, thereby preventing the magnetic head shell from having a polishing blind area, and ensuring the polishing effect of the contact portion between the fixed portion and the magnetic head shell; The inner wall of the magnetic head shell is polished in a targeted manner by the second polishing brush, so that the outer surface and the inner wall of the magnetic head shell are polished synchronously, thereby improving the polishing efficiency of the magnetic head shell; The suction tube is helpful for sucking and collecting the grinding debris. At the same time, the suction force through the through groove is used to adsorb and reinforce the head shell, so as to prevent the head shell from abnormally shifting during the grinding process and ensure the fixing effect of the head shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the shell polishing equipment for magnetic head production of the present invention; Figure 2 It is a schematic diagram of the combined three-dimensional structure of the telescopic driving member 1, the fixing platform, the loading plate, the external grinding assembly and the suction pipe of the present invention; Figure 3 It is a schematic diagram of the combined three-dimensional structure of the loading plate, the movable frame and the external grinding assembly of the present invention; Figure 4 A combined cross-sectional view of a loading tray and a fixing table of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the shifting block of the movable frame of the present invention; Figure 6 For the present invention Figure 5 A magnified image of the area in the middle; Figure 7 It is a schematic diagram of the combined three-dimensional structure of the loading plate, the movable frame, the outer grinding component and the inner grinding component of the present invention; Figure 8 It is a schematic diagram of the combined three-dimensional structure of the loading plate, the movable frame, the fixed table, the external grinding component and the internal grinding component of the present invention; Fig. 9 It is a schematic diagram of the combined three-dimensional structure of the loading tray, the movable frame, the fixing assembly and the tilting block of the present invention; Fig.10 It is a schematic diagram of the combined three-dimensional structure of the loading plate, the movable frame, the fixed table, the inner grinding assembly and the tilting block of the present invention; Fig.11It is a schematic diagram of the combined three-dimensional structure of the loading plate, the movable frame, the second grinding brush, the lever and the tilting block of the present invention.

[0017] Among them: 1-machine table, 2-loading plate, 2001-sliding groove, 2002-through groove, 3-movable frame, 3001-shift block, 3002-combing rod, 3003-hollow groove, 4-telescopic driving member 2, 5-head housing, 101-telescopic driving member 1, 102-fixed table, 103-fixed rod, 10301-fixed part, 104-elastic part, 201-slide rail, 202-electric slider, 203-fixed frame, 204-grinding brush 1, 20401-side grinding part, 205-servo motor, 301-fixed block, 302-direct drive motor, 303-rotating shaft, 304-grinding brush 2, 305-gear, 306-synchronous belt, 401-suction tube, 402-shift rod, 501-tilting block. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0019] Example 1 like Figure 1-Figure 10 As shown, a shell polishing device for magnetic head production includes a machine table 1, a telescopic driving member 101 and a fixed table 102; two symmetrically arranged telescopic driving members 101 are fixedly connected to the machine table 1, and the telescopic driving members 101 are electric push rods; a fixed table 102 is commonly fixedly connected to the telescopic ends of all the telescopic driving members 101; It also includes a loading tray 2, a fixed component, a movable frame 3, a telescopic driving member 24, an outer grinding component, an inner grinding component and a suction pipe 401; the loading tray 2 is detachably connected to the fixed table 102; the lower side of the loading tray 2 and the upper side of the fixed table 102 form a cavity; the loading tray 2 is provided with a plurality of through slots 2002 in a rectangular array, and the through slots 2002 are connected to the cavity; a fixed component is provided on the loading tray 2; a movable frame 3 is slidably connected to the loading tray 2; the movable frame 3 is composed of an outer frame and a plurality of equidistantly arranged horizontal plates, each of which is provided with a plurality of shifting blocks 3001, and each shifting block 3001 is It is directly opposite to a through slot 2002; a hollow slot 3003 is provided in the middle of each shift block 3001; two symmetrically arranged telescopic driving members 24 are provided on the loading tray 2, and the telescopic driving members 24 are electric push rods; the telescopic end of each telescopic driving member 24 is fixedly connected to the outer frame of the movable frame 3; the telescopic end of each telescopic driving member 24 is facing the rear side; an external grinding component is provided on the machine 1; an internal grinding component is provided on the loading tray 2; a suction pipe 401 is connected to the machine 1; the suction pipe 401 is connected to an external suction device; the suction pipe 401 is connected to the cavity between the fixed table 102 and the loading tray 2.

[0020] The fixing assembly includes a fixing rod 103 and an elastic member 104; a plurality of sliding grooves 2001 are provided on the loading plate 2; a fixing rod 103 is slidably connected in each sliding groove 2001; a plurality of fixing parts 10301 are provided on each fixing rod 103; the upper end of each fixing part 10301 penetrates upwardly through the upper side of the loading plate 2; every four adjacent fixing parts 10301 form a group; a plurality of elastic members 104 are fixedly connected to each fixing rod 103, and the elastic member 104 is a spring; each elastic member 104 is fixedly connected to the corresponding sliding groove 2001.

[0021] The external grinding assembly includes a slide rail 201, an electric slider 202, a fixed frame 203, a grinding brush 204 and a servo motor 205; two symmetrically arranged slide rails 201 are fixedly connected to the machine 1; each slide rail 201 is slidably connected to an electric slider 202; all the electric sliders 202 are commonly fixedly connected to a fixed frame 203; a number of grinding brushes 204 are rotatably connected to the fixed frame 203; a servo motor 205 is fixedly connected to the fixed frame 203; each grinding brush 204 is fixedly connected to the output end of the servo motor 205.

[0022] The grinding brush 204 is arranged in an I-shape, and each grinding brush 204 is provided with two symmetrically arranged side grinding parts 20401 , and the side grinding parts 20401 are located on two opposite inner sides of the I-shaped grinding brush 204 .

[0023] The internal grinding assembly includes a fixed block 301, a direct drive motor 302, a rotating shaft 303, a grinding brush 304, a gear 305 and a synchronous belt 306; the fixed block 301 is fixedly connected to the loading plate 2; the direct drive motor 302 is fixedly connected to the fixed block 301; a number of rotating shafts 303 are rotatably connected to the loading plate 2; a number of grinding brushes 304 are fixedly connected to each rotating shaft 303; each grinding brush 304 is located in a corresponding through groove 2002; a gear 305 is fixedly connected to each rotating shaft 303; the output end of the direct drive motor 302 is fixedly connected to one of the gears 305; and a synchronous belt 306 is commonly connected to all the gears 305.

[0024] The upper end of each fixing portion 10301 is configured as an inclined surface, which is helpful for guiding the bottom of the head shell 5 when the head shell 5 is loaded, so that the head shell 5 can be easily inserted into each set of fixing portions 10301.

[0025] Each shift block 3001 is made of high-strength material, so that when the grinding brush 204 passes through the shift block 3001 , the grinding brush 204 is prevented from causing a lot of wear to the shift block 3001 .

[0026] A plurality of combing rods 3002 are disposed on each shifting block 3001 , and the combing rods 3002 on each shifting block 3001 are arranged in a comb teeth shape.

[0027] It also includes a lever 402; a lever 402 is fixedly connected to the lower part of each through slot 2002.

[0028] Before grinding the magnetic head shell 5, the produced magnetic head shell 5 is clamped by the external loading robot and placed on the loading plate 2, so that each magnetic head shell 5 is inserted into each group of fixing parts 10301, and the magnetic head shell 5 moves downward along the inclined surface of the upper end of the fixing part 10301, pushing the fixing part 10301 outward, so that the fixing part 10301 drives the fixing rod 103 to move away from the through groove 2002, so that the fixing rod 103 slides in the sliding groove 2001, and compresses The elastic member 104 utilizes the rebound restoring force of the elastic member 104 to make the fixing rod 103 drive the fixing part 10301 to squeeze and fix the magnetic head housing 5. When the magnetic head housing 5 is inserted into each set of fixing parts 10301, the inner wall of the magnetic head housing 5 contacts the grinding brush 2 304. After the magnetic head housing 5 is placed on the loading tray 2, the staff places the loading tray 2 loaded with the magnetic head housing 5 on the fixing platform 102, and then controls the telescopic driving member 101 to drive the fixing platform 102 to rise. The fixed table 102 drives the loading plate 2 to rise and approach the grinding brush 1 204. At this time, the servo motor 205 is controlled to drive the grinding brush 1 204 to rotate. At the same time, the electric slider 202 is controlled to drive the fixed frame 203 to slide forward on the slide rail 201, so that the fixed frame 203 drives the grinding brush 1 204 to fit the magnetic head housing 5 and move forward. The magnetic head housing 5 is polished by the high-speed rotating grinding brush 1 204. At the same time, the left and right sides of the magnetic head housing 5 are polished by the side polishing part 20401. Targeted grinding is performed on the right side to ensure the grinding effect of the head shell 5. When the grinding brush 204 passes through the head shell 5, the operator sets the telescopic data of the telescopic driving member 101 in advance according to the convex arc surface contour on the upper side of the head shell 5, and adaptively controls the telescopic driving member 101 to drive the fixed platform 102 to rise and fall, so that the distance between each part of the convex arc surface on the upper side of the head shell 5 and the grinding brush 204 remains unchanged, thereby ensuring the grinding effect of the convex arc surface of the head shell 5.

[0029] When the grinding brush 204 is grinding the head housing 5, the output end of the direct drive motor 302 is controlled to drive the corresponding gear 305 to rotate, so that the gear 305 connected to the direct drive motor 302 drives other gears 305 to rotate together through the synchronous belt 306, and then the gear 305 drives the rotating shaft 303 to rotate. While the rotating shaft 303 rotates, it drives the grinding brush 2 304 to fit the inner wall of the head housing 5 and rotate at high speed, so as to grind the inner wall of the head housing 5 in a targeted manner, thereby realizing synchronous grinding of the outer surface and inner wall of the head housing 5, and improving the grinding efficiency of the head housing 5.

[0030] When the polishing brush 1 204 moves forward to polish the head shell 5, the telescopic driving member 2 4 is first controlled to drive the movable frame 3 to move backward, so that the shifting block 3001 of the movable frame 3 pushes each head shell 5 to move backward, and then the contact part between the fixed part 10301 and the head shell 5 is exposed for polishing, thereby preventing the head shell 5 from having a polishing blind area, thereby ensuring the polishing effect of the contact part between the fixed part 10301 and the head shell 5.

[0031] During the grinding process of the magnetic head shell 5, the magnetic head shell 5 is pushed by the shifting block 3001 of the movable frame 3 to form a gap between it and the through slot 2002, and the hollow slot 3003 of the shifting block 3001 is moved to the upper side of the gap. At the same time, the external suction device is controlled to suck the cavity between the fixed table 102 and the loading disk 2 by the suction tube 401, so that the suction force is transmitted to the gap between the magnetic head shell 5 and the through slot 2002 through the through slot 2002, and then the hollow slot 3003 of the shifting block 3001 sucks the upper side of the loading disk 2, which is beneficial to the suction and collection of the debris polished by the grinding brush 1 204 and the grinding brush 2 304.

[0032] When the grinding brush 204 rotates and passes through the shifting block 3001, the bristles of the grinding brush 204 are shifted apart by the shifting block 3001 to expose the roots of the bristles, thereby causing the suction force to suck the roots of the bristles of the grinding brush 204, thereby enhancing the suction and collection effect of the debris adhering to the grinding brush 204, and preventing the grinding brush 204 from carrying the debris to grind the magnetic head housing 5. When the bristles of the grinding brush 204 pass through the combing rod 3002, the combing rod 3002 is inserted into the bristles to comb the bristles of the grinding brush 204. The brush 204 is effectively polished by the polishing brush 1 204, and the bristles are prevented from being tangled. At the same time, the lever 402 is inserted into the bristles of the polishing brush 2 304 to squeeze and bend the bristles so that the roots of the bristles on the polishing brush 2 304 are exposed, so that the suction force in the cavity between the fixed table 102 and the loading plate 2 directly sucks the bristles on the polishing brush 2 304, preventing the bristles on the polishing brush 2 304 from carrying debris to polish the inner wall of the magnetic head housing 5, thereby ensuring the polishing effect on the magnetic head housing 5.

[0033] When the polishing of the head shell 5 is completed, the external suction device is controlled to stop working, so that the suction tube 401 stops suction, and then the telescopic driving member 101 is controlled to drive the fixed table 102 to descend, so that the fixed table 102 drives the loading disk 2 to descend, and the staff removes the loading disk 2 from the fixed table 102, and then removes the polished head shell 5 from the loading disk 2, completing the polishing of the head shell 5.

[0034] Example 2 On the basis of Example 1, Figure 8-Figure 11As shown, it also includes a tilting block 501; except for the last row of shifting blocks 3001, each of the remaining shifting blocks 3001 is fixedly connected to two symmetrically arranged tilting blocks 501 on the rear side; the position of each tilting block 501 is directly opposite to the adjacent fixing part 10301; and the rear end of each tilting block 501 is provided with a wedge-shaped surface that cooperates with the inclined surface of the upper end of the fixing part 10301.

[0035] When the grinding of the head shell 5 is completed, the telescopic driving member 24 is controlled to drive the movable frame 3 to move backward, so that the movable frame 3 drives the tilting block 501 to move forward, and then the wedge-shaped surface of the tilting block 501 pushes the inclined surface of the upper end of the fixed part 10301 behind it, and pushes the fixed part 10301 outward, so that the fixed part 10301 drives the fixing rod 103 to move away from the head shell 5, and at the same time compresses the elastic member 104, so that the fixing rod 103 releases the fixation of the head shell 5, and then the staff removes the loading tray 2 from the fixing table 102, and then pours all the head shells 5 on the loading tray 2 into the external collection frame, so as to complete the quick unloading of the polished head shell 5 and improve the overall grinding efficiency of the head shell 5.

[0036] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A shell polishing device for magnetic head production, comprising a machine table (1); two telescopic driving members (101) are fixedly connected to the machine table (1); a fixed table (102) is commonly fixedly connected to the telescopic ends of all the telescopic driving members (101); wherein: The device also comprises a loading disk (2); a loading disk (2) for loading a magnetic head housing (5) is connected to the fixing table (102); a cavity is formed between the lower side of the loading disk (2) and the upper side of the fixing table (102); a plurality of through slots (2002) in a rectangular array are provided on the loading disk (2), and the through slots (2002) are connected to the cavity; a fixing component for fixing the magnetic head housing (5) is provided on the loading disk (2); a movable frame (3) for pushing the magnetic head housing (5) is slidably connected to the loading disk (2); a plurality of shifting blocks (3001) are provided on the movable frame (3), and each shifting block (3001) is positioned in the through slot (2002). The movable frame (3) is provided with a plurality of telescopic drive members (4) on the loading plate (2); the telescopic end of each telescopic drive member (4) is fixedly connected to the movable frame (3); the machine table (1) is provided with an external grinding component for grinding the magnetic head housing (5); the loading plate (2) is provided with an internal grinding component for grinding the inner wall of the magnetic head housing (5); the machine table (1) is connected with a suction pipe (401) for sucking grinding debris; the suction pipe (401) is connected to an external suction device; the suction pipe (401) is connected to the cavity between the fixed table (102) and the loading plate (2).

2. A shell polishing device for magnetic head production according to claim 1, characterized in that: The fixing assembly comprises a fixing rod (103) and an elastic member (104); a plurality of sliding grooves (2001) are provided on the loading disk (2); a fixing rod (103) for fixing the magnetic head housing (5) is slidably connected in each sliding groove (2001); a plurality of fixing parts (10301) are provided on each fixing rod (103); the upper end of each fixing part (10301) penetrates upwardly through the upper side of the loading disk (2); every four adjacent fixing parts (10301) form a group; a plurality of elastic members (104) are fixedly connected to each fixing rod (103); and each elastic member (104) is fixedly connected to the corresponding sliding groove (2001).

3. A shell polishing device for magnetic head production according to claim 1, characterized in that: The external grinding component comprises a slide rail (201), an electric slider (202), a fixed frame (203), a grinding brush (204) and a servo motor (205); two slide rails (201) are fixedly connected to the machine platform (1); each slide rail (201) is slidably connected to an electric slider (202); all the electric sliders (202) are commonly fixedly connected to a fixed frame (203); a plurality of grinding brushes (204) for grinding the magnetic head housing (5) are rotatably connected to the fixed frame (203); a servo motor (205) is fixedly connected to the fixed frame (203); each grinding brush (204) is fixedly connected to the output end of the servo motor (205).

4. A shell polishing device for magnetic head production according to claim 3, characterized in that: The grinding brush 1 (204) is arranged in an I-shape, and each grinding brush 1 (204) is provided with a plurality of side grinding portions (20401) for grinding the side surfaces of the magnetic head housing (5), and the side grinding portions (20401) are located on two opposite sides of the inner side of the I-shaped grinding brush 1 (204).

5. A shell polishing device for magnetic head production according to claim 2, characterized in that the inner The polishing assembly comprises a fixed block (301), a direct drive motor (302), a rotating shaft (303), a second polishing brush (304), a gear (305) and a synchronous belt (306); the loading plate (2) is fixedly connected with the fixed block (301); the direct drive motor (302) is fixedly connected with the fixed block (301); a plurality of rotating shafts (303) are rotatably connected with the loading plate (2); a plurality of second polishing brushes (304) for polishing the inner wall of the magnetic head housing (5) are fixedly connected with each rotating shaft (303); each second polishing brush (304) is located in a corresponding through slot (2002); a gear (305) is fixedly connected with each rotating shaft (303); the output end of the direct drive motor (302) is fixedly connected with one of the gears (305); and a synchronous belt (306) is commonly connected with all the gears (305).

6. A shell polishing device for magnetic head production according to claim 2, characterized in that: The upper end of each fixing portion (10301) is configured as an inclined surface.

7. A shell polishing device for magnetic head production according to claim 1, characterized in that: Each shift block (3001) is made of high-strength material.

8. A shell polishing device for magnetic head production according to claim 7, characterized in that: Each shifting block (3001) is provided with a plurality of combing rods (3002) for combing the grinding brush 1 (204), and the combing rods (3002) on each shifting block (3001) are arranged in the shape of comb teeth.

9. A shell polishing device for magnetic head production according to claim 5, characterized in that: It also includes a lever (402); a lever (402) for pushing away the second grinding brush (304) is fixedly connected to the lower part of each through slot (2002).

10. The housing polishing device for magnetic head production according to claim 8, characterized in that: It also includes a tilting block (501); except for the last row of shifting blocks (3001), the rear side of each of the remaining shifting blocks (3001) is fixed with a plurality of tilting blocks (501) for tilting the magnetic head housing (5) for cutting; the position of each tilting block (501) is directly opposite to the adjacent fixing portion (10301); and the rear end of each tilting block (501) is provided with a wedge-shaped surface that matches the inclined surface of the upper end of the fixing portion (10301).

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