Hard disk substrate inner diameter annealing tool structure

Abstract

The application discloses a hard disk substrate inner diameter annealing tool, which comprises a hanging rod carrier, a hanging rack left side plate and a hanging rack right side plate which are welded on the left and right sides of the hanging rod carrier and are perpendicular to the carrier, four plug pin assemblies which are inserted into four plug-in slots on the top wall of the carrier, a part of a hanging rod assembly which is inserted into the inner cavity of the plug pin assembly, another part of the hanging rod assembly which is provided with three strip-shaped slots which are perpendicular to the hanging rod carrier, a hanging piece assembly which is inserted into the strip-shaped slots, and multiple hard disk substrates which are clamped in the clamping slots of the hanging piece assembly. The application has high practicability, and the physical tool which is designed by using the inner diameter annealing scheme can complete the flatness which cannot be achieved by the outer diameter tray substrate annealing tool in the process of producing the thinner 97Y disk substrate on site, thereby providing the process technical support for the future production of 97Y and other thin products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disc clamping heat treatment, in particular to a hard disk substrate inner diameter annealing tool. BACKGROUND

[0002] At present, the bearing mode of hard disk substrate annealing treatment is three supporting points of outer diameter, the supporting points are 60 degrees from the center of the disc, and are distributed at three points of the outer diameter. In order to ensure the flatness of the disc and prevent the supporting points from clamping out of the same plane to cause deformation of the disc, the middle supporting point is less than the two side supporting points from the center, the disc is supported by two points at any time, and the other supporting point is in a supporting state, so as to prevent the deformation of the disc substrate supporting points under multi-point stress;

[0003] This mode better solves the problem of heat treatment deformation of products with a thickness of >0.6. With the development and improvement of the capacity of hard disks, the disc substrate is becoming thinner and thinner. During the heat treatment process, the disc will be subjected to the thrust of the tunnel furnace hot air. The supporting point in the loose and stress-free state will become a stress point, and the flatness of the disc cannot be guaranteed.

[0004] At present, three-point supporting is used to support the outer diameter for heat treatment, which objectively emphasizes two-point stress, but in actual application, the disc exists in different degrees of tilting, and the three points of the outer diameter of the disc will be stressed at the same time. Due to the large distance span of the supporting points relative to the disc specifications, the influence of the clearance on the tilting angle needs to be considered during the design of the supporting points. Small clearance is beneficial to the control of the tilting angle, but the disc will be deformed by external force during the heat treatment process, and the flatness of the disc will change, which will have a fatal impact on the product quality. Therefore, how to solve the problem of large supporting point span has become the focus of new design. SUMMARY

[0005] The present application aims to provide a hard disk substrate inner diameter annealing tool to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a hard disk substrate inner diameter annealing tool, comprising a hanging rod carrier, a hanging rack left side plate and a hanging rack right side plate welded on the left and right sides of the hanging rod carrier and perpendicular to the carrier, four plug-in assemblies inserted into four plug-in slots in the top wall of the carrier, a part of the hanging rod assembly inserted into the inner cavity of the plug-in assembly, and another part of the hanging rod assembly provided with three strip-shaped slots perpendicular to the hanging rod carrier, the hanging piece assembly inserted into the strip-shaped slots, and a plurality of hard disk substrates clamped in the clamping slots of the hanging piece assembly.

[0007] Preferably, the hanging rod carrier comprises a frame body, and four plug-in slots one are formed in the top wall of the frame body, the bottom end of the plug-in slot one is communicated with the plug-in slot two, and a transition arc-shaped slot is formed at the connection between the plug-in slot two and the plug-in slot one.

[0008] Preferably, the plug-in assembly comprises a plug-in block, a hole is formed in the inner wall of the plug-in block, the hole is hexagonal, and an arc-shaped block and a plug-in rod are integrally formed at the bottom end of the plug-in block.

[0009] Preferably, the hanging rod assembly comprises a fixing block which is integrally formed with the hanging rod, the hanging rod is hexagonal, three clamping grooves are formed in the outer wall of the hanging rod, one clamping groove is vertically arranged, and the other two clamping grooves are obliquely arranged, the center lines of the three clamping grooves converge at a point, and the fixing block is inserted into the hole.

[0010] Preferably, the hanging piece assembly is inserted into the clamping groove, the hanging piece is clamped and fixed between the clamping die one and the clamping die two, the bottom ends of the clamping die one and the clamping die two are fixed by bolts, a plurality of clamping grooves two are formed in the top wall of the hanging piece, the clamping groove two is a trumpet-shaped slot, the clamping piece one is installed at the top end of the clamping die one, a plurality of clamping grooves three are formed in the top wall of the clamping piece one, the clamping piece two is installed at the top end of the clamping die two, and a plurality of clamping grooves four are formed in the top end of the clamping piece two; the clamping die one is a type, the clamping die two is an inverted type, and the clamping die one and the clamping die two are fixed together in a staggered manner.

[0011] The hard disk substrate inner diameter annealing tool provided by the application has the advantages that the tool designed by using the inner diameter annealing scheme can complete the flatness that the outer diameter tray substrate annealing tool cannot achieve in the process of producing the 97Y disk substrate, thereby providing process technical support for the production of 97Y and other thin products in the future. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a top view of the whole application;

[0013] Figure 2 It is a rear view of the whole application;

[0014] Figure 3 It is a left view of the whole application;

[0015] Figure 4 It is a sectional view of the hanging rod carrier of the application;

[0016] Figure 5 It is a front view of the latch assembly of the application;

[0017] Figure 6 It is a top view of the plug block of the application;

[0018] Figure 7 It is a side view of the hanging rod assembly of the application;

[0019] Figure 8 It is a left view of the hanging rod assembly of the application;

[0020] Figure 9 It is a side view of the hanging piece of the application;

[0021] Figure 10 It is a side view of the clamping die one of the application;

[0022] Figure 11 Figure 2 is a two-side view of the clamp mold two of the present application;

[0023] Figure 12 Figure 3 is an assembly drawing of the clamp mold one and the clamp mold two of the present application;

[0024] Figure 13 Figure 4 is a schematic diagram of the prior art three-point support of the outer diameter;

[0025] Figure 14 Figure 5 is a schematic diagram of the improved three-point support of the inner diameter of the present application.

[0026] In the figure: 1, hanging rod carrier, 1a, frame body, 1b, insertion slot one, 1c, insertion slot two, 1d, arc-shaped slot, 2, left side plate of the hanging frame, 3, right side plate of the hanging frame, 4, hanging rod assembly, 4a, fixed block, 4b, hanging rod, 4c, slot one, 5, plug assembly, 5a, plug block, 5b, hole, 5c, plug rod, 5d, arc-shaped block, 6, hanging piece assembly, 6a, hanging piece, 6b, slot two, 6c, clamp mold one, 6d, clamp piece one, 6e, slot three, 6f, clamp mold two, 6g, clamp piece two, 6h, slot four. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-3 The present application provides a technical solution: a hard disk substrate inner diameter annealing tool, which comprises a hanging rod carrier 1, a left side plate 2 and a right side plate 3 of the hanging frame which are welded on the left and right sides of the hanging rod carrier 1 and are perpendicular to the carrier 1, four plug assemblies 5 which are inserted into four insertion slots in the top wall of the carrier 1, a hanging rod assembly 4 which is partially inserted into the inner cavity of the plug assembly 5 and has another part which is provided with three strip-shaped slots which are perpendicular to the hanging rod carrier 1, and a hanging piece assembly 6 which is inserted into the strip-shaped slots, and a plurality of hard disk substrates which are clamped in the slot of the hanging piece assembly 6;

[0029] Please refer to Figure 4 Figure 2 is a two-side view of the clamp mold two of the present application;

[0030] Please refer to Figures 5-6 Figure 3 is an assembly drawing of the clamp mold one and the clamp mold two of the present application;

[0031] The shape of the insertion groove one 1b is matched with the insertion block 5a, the insertion block 5a is inserted in the insertion groove one 1b, the insertion block 5a is composed of a large rectangle and two small rectangles, the insertion block 5a is limited, the position is prevented from deviating, the arc block 5d is inserted in the arc-shaped groove 1d, and the insertion rod 5c is inserted in the insertion groove two 1c;

[0032] Please refer to Figures 7-8 , it is a schematic view of the hanging rod assembly 4, the fixed block 4a is integrally formed with the hanging rod 4b, the hanging rod 4b is hexagonal, three clamping grooves one 4c are formed in the outer wall of the hanging rod 4b, one clamping groove one 4c is vertically arranged, and the other two clamping grooves one 4c are obliquely arranged, the center lines of the three clamping grooves one 4c converge at a point, and the fixed block 4a is inserted in the hole 5b;

[0033] Please refer to Figures 9-12 , it is a schematic view of the hanging piece assembly 6, the bottom of the hanging piece assembly 6 is inserted in the clamping groove one 4c, the hanging piece 6a is clamped and fixed between the clamping die one 6c and the clamping die two 6f, the bottom ends of the clamping die one 6c and the clamping die two 6f are fixed by bolts, a plurality of clamping grooves two 6b are formed in the top wall of the hanging piece 6a, the clamping grooves two 6b are trumpet-shaped U-shaped grooves, the clamping piece one 6d is installed at the top end of the clamping die one 6c, a plurality of clamping grooves three 6e are formed in the top wall of the clamping piece one 6d, the clamping piece two 6g is installed at the top end of the clamping die two 6f, and a plurality of clamping grooves four 6h are formed in the top end of the clamping piece two 6g; the clamping die one 6c is L-shaped, the clamping die two 6f is inverted L-shaped, and the clamping die one 6c and the clamping die two 6f are fixed together in a staggered manner.

[0034] The disc is composed of an outer diameter circle and an inner diameter circle, and the disc material is currently supported by the outer diameter, and the inner diameter of the disc substrate center can improve the problem of large support span. The key points are to design the support point position, support shape and control the gap. The disc substrate can be conveniently introduced into the U-shaped bottom support by designing the PI trumpet-shaped U-shaped groove. The clearance gap is reserved to control the disc substrate inclination angle to prevent adjacent disc substrates from touching. One support point and two supporting points are arranged in the disc substrate center hole inner diameter, and the three points are all PI trumpet-shaped U-shaped groove structures. The middle groove is responsible for bearing the weight of the disc substrate and plays a major supporting role. The double-sided groove is responsible for supporting the disc substrate and controlling the Z direction and X direction inclination angle of the disc substrate. The three U-shaped grooves are arranged in the inner diameter, the support span is 8.56mm, and when the disc substrate is hung in the U-shaped groove with clearance, only the middle support point is stressed, and the other two support points are loose. In this way, it is ensured that the disc substrate does not exist in the multi-point stress condition under the hot air thrust of the tunnel furnace, thereby preventing the disc substrate from being deformed due to external force.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hard disk substrate inner diameter annealing tooling, comprising a hanging rod carrier and a hanging rack left side plate and a hanging rack right side plate installed on the left and right sides of the hanging rod carrier, characterized in that: The hanging rod carrier, the hanging rack left side plate and the hanging rack right side plate form a U-shaped frame, one end of the plurality of plug-in assemblies is plugged into the plurality of plug-in slots in the top wall of the hanging rod carrier, and the other end is plugged into the hanging rod assembly, the hanging rod assembly and the plug-in assembly are in a vertical state, the hanging rod assembly comprises a fixed block, the fixed block and the hanging rod are integrally formed, the hanging rod is hexagonal, three clamping grooves one are formed in the outer wall of the hanging rod, one clamping groove one is vertically arranged, and the other two clamping grooves one are obliquely arranged, the center lines of the three clamping grooves one converge at a point, the bottom of the hanging piece assembly is inserted into the clamping groove one, the hanging piece assembly comprises a hanging piece and two clamping dies arranged alternately on the sides, the clamping die comprises a clamping die one and a clamping die two, the hanging piece is clamped and fixed between the clamping die one and the clamping die two, and the hanging piece assembly supports the hard disk substrate.

2. The hard disk substrate inner diameter annealing tooling of claim 1, wherein: The top wall of the hanging rod carrier is provided with a plurality of plug-in slots one, the bottom of the plug-in slot one is communicated with a plug-in slot two, the plug-in slot one is a polygon containing a plurality of corners, and the plug-in slot two is a through slot.

3. The hard disk substrate inner diameter annealing tooling of claim 2, wherein: The plug-in assembly comprises a plug-in block, a plug-in rod is installed at the bottom end of the plug-in block, and a polygonal hole is formed in the inner wall of the plug-in block.

4. The hard disk substrate inner diameter annealing tooling of claim 3, wherein: A plurality of clamping grooves two are formed in the top end of the hanging piece, and the clamping grooves two are trumpet-shaped U-shaped grooves.

5. The hard disk substrate inner diameter annealing tooling of claim 4, wherein: The top end of the clamping die one and the clamping die two is respectively provided with a clamping piece one and a clamping piece two, and the top wall of the clamping piece one and the clamping piece two is provided with a plurality of clamping grooves three and clamping grooves four matched with the clamping grooves two.

6. The hard disk substrate inner diameter annealing tooling of claim 5, wherein: The clamping die one is L-shaped, the clamping die two is inverted L-shaped, and the clamping die one and the clamping die two are fixed together alternately.

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