Locking tool for notebook computer rotating shaft machining

Abstract

The utility model relates to the field of rotating shaft processing, and discloses a locking tool for processing a rotating shaft of a notebook computer, which comprises a lower fixed seat, an upper fixed seat, a lifting cylinder and a mounting bottom plate, and the upper fixed seat and the lower fixed seat are in threaded connection with two positive and negative double-thread screws through screw caps on the left and right sides; a lower penetrating hole is formed in the middle of the surface of the upper end of the mounting bottom plate in a downward penetrating mode, the lifting air cylinder is mounted below the mounting bottom plate, and a push rod of the lifting air cylinder penetrates through the lower penetrating hole to be arranged above the mounting bottom plate and is connected with the lower surface of the lower fixing base. The upper fixing base and the lower fixing base are both installed on the two positive and negative double-thread screws through nuts, the matched lifting air cylinder can enable the upper fixing base and the lower fixing base to move outwards or inwards at the same time, then the rotating shaft located between the upper fixing base and the lower fixing base can be locked and fixed, the axis of the rotating shaft and the axis of the reaming shaft are always collinear, and follow-up reaming operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of shaft processing, in particular to a locking tool for processing a notebook computer shaft. Background Art

[0002] The hinge of the laptop is installed at the connection between the computer screen and the keyboard, mainly to facilitate the smooth opening and closing of the laptop. The hinge processing fixture is mainly used to expand the hole structure of the laptop hinge base to ensure that the hinge can function normally.

[0003] Chinese patent number CN218746326U records a laptop computer shaft processing jig, which makes the air flow inside the shaft smoother and allows the dust collection position to be adjusted according to the expansion hole position, reducing the problem of debris leakage and further improving the dust collection effect of the dust collection device.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the following defects exist: in the above-mentioned structure, the rotating shaft needs to be fixed before the corresponding hole expansion operation can be performed. The rotating shaft is fixed between the lower clamping block and the upper clamping block, wherein the lower clamping block is fixed, and the upper clamping block can move up and down under the action of the cylinder, thereby being able to fix a variety of rotating shafts of different sizes. When the rotating shafts of different sizes are fixed, the position of their axes will also change accordingly, which results in the axis of the rotating shaft being unable to be colinear with the axis of the hole expansion shaft. When the hole expansion shaft enters the rotating shaft hole, the axis will be offset, resulting in the hole expansion being not a circular structure. For this reason, we designed a locking tool for processing the rotating shaft of a laptop computer. Utility Model Content

[0005] In order to solve the technical problem that the axis of the rotating shaft cannot be colinear with the axis of the reaming shaft, the utility model provides a locking tool for processing the rotating shaft of a notebook computer.

[0006] The utility model is implemented by the following technical scheme: a locking tool for processing a laptop computer shaft, comprising a lower fixing seat, an upper fixing seat, a lifting cylinder and a mounting base, the upper end surface of the mounting base is symmetrical on both sides and two positive and negative double-threaded screws are rotatably mounted through bearings, nuts are arranged below the left and right sides of the lower fixing seat, nuts are arranged above the left and right sides of the upper fixing seat, and the upper fixing seat and the lower fixing seat are threadedly connected to the two positive and negative double-threaded screws through the nuts on the left and right sides;

[0007] A lower through hole is formed downwardly through the middle of the upper surface of the mounting base plate, the lifting cylinder is installed below the mounting base plate, and the push rod of the lifting cylinder passes through the lower through hole and is placed above the mounting base plate and connected to the lower surface of the lower fixing seat.

[0008] As a further improvement of the above scheme, the lower fixing seat includes a supporting arc plate and an extension plate, the left and right sides of the supporting arc plate are horizontally extended outward to form an extension plate, and the connection between the extension plate and the supporting arc plate is rounded to form a contact arc surface, when the outer diameter of the rotating shaft is larger than the inner diameter of the supporting arc plate, the outer ring surface of the rotating shaft will contact the inner wall portion of the supporting arc plate, and the contact arc surface with rounded corners prevents the rotating shaft from being scratched when the two are in contact;

[0009] The structure of the upper fixing seat is consistent with that of the lower fixing seat, and the supporting arc plates of the upper fixing seat and the lower fixing seat form a complete circular structure. When the two supporting arc plates overlap and dock, they form a circular structure that can completely clamp the rotating shaft.

[0010] As a further improvement of the above scheme, circular holes are formed through the upper and lower surfaces of the left and right sides of the upper fixing seat and the lower fixing seat, and nuts are fixed in the circular holes. The lower surface of the nut placed on the upper fixing seat is flush with the lower surface of its extension plate, and the upper surface of the nut placed on the lower fixing seat is flush with the upper surface of its extension plate. The upper fixing seat and the lower fixing seat can be close to each other and fit together without being interfered by the nuts.

[0011] As a further improvement of the above scheme, the thread rotation direction of the two nuts on the upper fixed seat is opposite to the thread rotation direction of the two nuts on the lower fixed seat. When the positive and negative double-threaded screw is rotated, the upper fixed seat and the lower fixed seat can move in opposite directions at the same time, thereby making them move away from or close to each other at the same time. The positive and negative double-threaded screw is a screw that combines positive and negative threads in one, and its self-locking performance is extremely poor. When the nut is placed above the positive and negative double-threaded screw and the rotation of the positive and negative double-threaded screw is restricted, the nut can rotate and slide down under the action of its own gravity, and when the nut is pinched to restrict its rotation and pulled, the positive and negative double-threaded screw can rotate accordingly.

[0012] As a further improvement of the above scheme, support columns are fixed with screws at the four corners of the upper surface of the mounting base plate, and the mounting top plate is fixed above the four support columns by screws, and the top end of the forward and reverse double-threaded screw is rotatably connected to the mounting top plate by a bearing, which is convenient for the subsequent installation of the guide rod and can support the forward and reverse double-threaded screw, thereby facilitating the rotation of the forward and reverse double-threaded screw.

[0013] As a further improvement of the above scheme, an upper through hole is formed downwardly through the center of the upper end surface of the mounting top plate, a guide rod is slidably sleeved in the upper through hole, and the lower end of the guide rod is fixed above the upper fixed seat. The design of the guide rod can play a guiding and limiting role in the up and down movement of the upper fixed seat, thereby facilitating its up and down movement.

[0014] As a further improvement of the above solution, a connecting column is provided below the supporting arc plate of the lower fixing seat, and the connecting column is connected to the push rod of the lifting cylinder through screws to facilitate the connection between the lower fixing seat and the lifting cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model provides an upper fixing seat and a lower fixing seat, both of which are installed on two positive and negative double-threaded screws through nuts, and cooperates with the provided lifting cylinder to enable the upper fixing seat and the lower fixing seat to move outward or inward at the same time, thereby locking and fixing the rotating shaft between the two, and also making the axis of the rotating shaft and the axis of the reaming shaft always colinear, which is convenient for subsequent reaming operations;

[0017] 2. By separating the supporting arc plates of the upper fixed seat and the lower fixed seat into two semicircular structures, and the two can move outward or inward at the same time, it is possible to lock a variety of rotating shafts of different sizes. With the provided contact arc surface, a rotating shaft of a larger size will not be scratched when locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a locking tool for processing a notebook computer shaft provided by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure without installing the guide rod and lifting cylinder;

[0020] Figure 3 for Figure 1 Schematic diagram of the connection between the upper and lower fixing seats and the positive and negative double-threaded screws;

[0021] Figure 4 It is a schematic diagram of the structure of the upper fixing seat and the lower fixing seat.

[0022] Description of main symbols:

[0023] 1. Lifting cylinder; 2. Installing base plate; 21. Lower connecting hole; 3. Support column; 4. Positive and negative double-threaded screw; 5. Lower fixing seat; 51. Support arc plate; 52. Connecting column; 53. Extension plate; 54. Contact arc surface; 6. Upper fixing seat; 7. Installing top plate; 8. Guide rod; 9. Nut. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Example:

[0026] Please combine Figure 1-Figure 4 The locking tool for processing the rotating shaft of a laptop computer of the present embodiment comprises a lower fixing seat 5, an upper fixing seat 6, a lifting cylinder 1 and a mounting base plate 2. The upper end surface of the mounting base plate 2 is symmetrically mounted with two positive and negative double-threaded screws 4 on both sides and rotatably mounted through bearings. Nuts 9 are arranged below the left and right sides of the lower fixing seat 5, and nuts 9 are arranged above the left and right sides of the upper fixing seat 6. The upper fixing seat 6 and the lower fixing seat 5 are both threadedly connected to the two positive and negative double-threaded screws 4 through the nuts 9 on the left and right sides.

[0027] A lower through hole 21 is formed downwardly through the middle of the upper end surface of the mounting base plate 2, and the lifting cylinder 1 is installed below the mounting base plate 2. The push rod of the lifting cylinder 1 passes through the lower through hole 21 and is placed above the mounting base plate 2 and connected to the lower surface of the lower fixing seat 5.

[0028] The lower fixing seat 5 includes a supporting arc plate 51 and an extension plate 53. The left and right sides of the supporting arc plate 51 are horizontally extended outward to form the extension plate 53, and the connection between the extension plate 53 and the supporting arc plate 51 is rounded to form a contact arc surface 54. When the outer diameter of the rotating shaft is larger than the inner diameter of the supporting arc plate 51, the outer ring surface of the rotating shaft will contact the inner wall portion of the supporting arc plate 51. The contact arc surface 54 with rounded corners prevents the rotating shaft from being scratched when the two contact.

[0029] The structure of the upper fixing seat 6 is consistent with that of the lower fixing seat 5, and the supporting arc plates 51 of the upper fixing seat 6 and the lower fixing seat 5 form a complete circular structure. When the two supporting arc plates 51 overlap and dock, they form a circular structure that can completely clamp the rotating shaft.

[0030] Circular holes are formed through the upper and lower surfaces of the left and right sides of the upper fixing seat 6 and the lower fixing seat 5, and nuts 9 are fixed in the circular holes. The lower surface of the nut 9 placed on the upper fixing seat 6 is flush with the lower surface of its extension plate 53, and the upper surface of the nut 9 placed on the lower fixing seat 5 is flush with the upper surface of its extension plate 53. The upper fixing seat 6 and the lower fixing seat 5 can be close to each other and fit together without being interfered by the nut 9.

[0031] The thread rotation direction of the two nuts 9 on the upper fixing seat 6 is opposite to that of the two nuts 9 on the lower fixing seat 5. When the positive and negative double-threaded screw 4 is rotated, the upper fixing seat 6 and the lower fixing seat 5 can be moved in opposite directions at the same time, so that they can be moved away from or close to each other at the same time. The positive and negative double-threaded screw 4 is a screw that combines positive and negative threads. Its own self-locking performance is extremely poor. When the nut 9 is placed above the positive and negative double-threaded screw 4 and the rotation of the positive and negative double-threaded screw 4 is restricted, the nut 9 can rotate and slide down under the action of its own gravity. When the nut 9 is pinched to restrict its rotation and pulled, the positive and negative double-threaded screw 4 can rotate accordingly.

[0032] Support columns 3 are fixed with screws at the four corners of the upper surface of the mounting base plate 2, and the mounting top plate 7 is fixed above the four support columns 3 by screws, and the top end of the forward and reverse double-threaded screw 4 is rotatably connected to the mounting top plate 7 through a bearing, which is convenient for the subsequent installation of the guide rod 8 and can support the forward and reverse double-threaded screw 4, thereby facilitating the rotation of the forward and reverse double-threaded screw 4.

[0033] An upper through hole is formed downwardly through the center of the upper end surface of the mounting top plate 7, and a guide rod 8 is slidably sleeved in the upper through hole, and the lower end of the guide rod 8 is fixed above the upper fixed seat 6. The design of the guide rod 8 can play a guiding and limiting role in the up and down movement of the upper fixed seat 6, thereby facilitating its up and down movement.

[0034] A connecting column 52 is provided below the supporting arc plate 51 of the lower fixing seat 5 , and the connecting column 52 is connected to the push rod of the lifting cylinder 1 by screws, so as to facilitate the connection between the lower fixing seat 5 and the lifting cylinder 1 .

[0035] The implementation principle of a locking tool for processing a laptop computer shaft in the embodiment of the present application is as follows: when the upper fixing seat 6 and the lower fixing seat 5 are overlapped and docked, a complete circular structure is formed, and the axis of the reaming shaft is in line with the center of the circular structure. When the shaft is locked and fixed, the push rod of the lifting cylinder 1 moves downward, and the lower fixing seat 5 will also move downward at this time. Since the nut 9 is threadedly connected with the positive and negative double-threaded screw 4, and the self-locking performance between the two is poor, the positive and negative double-threaded screw 4 will also rotate accordingly at this time, because the upper fixing seat 6 is provided with The nut 9 is provided, and the screw threads of the nut 9 on the upper fixing seat 6 and the nut 9 on the lower fixing seat 5 are opposite. The rotation of the positive and negative double-threaded screw 4 will cause the upper fixing seat 6 to move upward at the same time, and the distance between the upper fixing seat 6 and the lower fixing seat 5 will increase. At this time, the rotating shaft can be placed in the gap between the two, and the push rod of the lifting cylinder 1 is moved upward again. The upper fixing seat 6 and the lower fixing seat 5 will also move inward at the same time to clamp the rotating shaft. At this time, the axis of the rotating shaft is collinear with the center of the original circular structure, that is, the axis of the rotating shaft is collinear with the axis of the reaming shaft, which is convenient for the subsequent reaming operation.

[0036] By providing an upper fixing seat 6 and a lower fixing seat 5, both of which are installed on two positive and negative double-threaded screws 4 through nuts 9, and cooperating with the provided lifting cylinder 1, the upper fixing seat 6 and the lower fixing seat 5 can be moved outward or inward at the same time, so that the rotating shaft between the two can be locked and fixed, and the axis of the rotating shaft and the axis of the reaming shaft are always in line, which is convenient for subsequent reaming operations;

[0037] By separating the upper fixing seat 6 and the supporting arc plate 51 of the lower fixing seat 5 into two semicircular structures, and the two can move outward or inward at the same time, it is possible to lock a plurality of rotating shafts of different sizes, and by cooperating with the provided contact arc surface 54, a rotating shaft of a larger size will not be scratched when locked.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A locking tool for processing a notebook computer shaft, comprising a lower fixing seat (5), an upper fixing seat (6), a lifting cylinder (1) and a mounting base (2), characterized in that: Two positive and negative double-threaded screws (4) are symmetrically mounted on the upper end surface of the mounting base (2) and are rotatably mounted via bearings; nuts (9) are disposed below the left and right sides of the lower fixing seat (5); nuts (9) are disposed above the left and right sides of the upper fixing seat (6); and the upper fixing seat (6) and the lower fixing seat (5) are both threadedly connected to the two positive and negative double-threaded screws (4) via the nuts (9) on the left and right sides; A lower through hole (21) is formed through the middle of the upper surface of the mounting base plate (2) and extends downwards; the lifting cylinder (1) is mounted below the mounting base plate (2); a push rod of the lifting cylinder (1) passes through the lower through hole (21) and is placed above the mounting base plate (2) and connected to the lower surface of the lower fixing seat (5).

2. The locking tool for processing a notebook computer shaft as claimed in claim 1, characterized in that: The lower fixing seat (5) comprises a supporting arc plate (51) and an extension plate (53), the left and right sides of the supporting arc plate (51) are both horizontally extended outward to form the extension plate (53), and the connection between the extension plate (53) and the supporting arc plate (51) is rounded to form a contact arc surface (54); The structure of the upper fixing seat (6) is consistent with that of the lower fixing seat (5), and the supporting arc plates (51) of the upper fixing seat (6) and the lower fixing seat (5) form a complete circular structure.

3. The locking tool for processing a notebook computer shaft as claimed in claim 2, characterized in that: Circular holes are formed through the upper and lower surfaces of the left and right sides of the upper fixing seat (6) and the lower fixing seat (5), and nuts (9) are fixed in the circular holes. The lower surface of the nut (9) placed on the upper fixing seat (6) is flush with the lower surface of its extension plate (53), and the upper surface of the nut (9) placed on the lower fixing seat (5) is flush with the upper surface of its extension plate (53).

4. The locking tool for processing a notebook computer shaft as claimed in claim 3, characterized in that: The thread rotation direction of the two nuts (9) on the upper fixing seat (6) is opposite to the thread rotation direction of the two nuts (9) on the lower fixing seat (5).

5. The locking tool for processing a notebook computer shaft as claimed in claim 1, characterized in that: Support columns (3) are fixed by screws at four corners of the upper end surface of the mounting base plate (2), the mounting top plate (7) is fixed above the four support columns (3) by screws, and the top end of the forward and reverse double-threaded screw (4) is rotatably connected to the mounting top plate (7) by a bearing.

6. The locking tool for processing a notebook computer shaft as claimed in claim 5, characterized in that: An upper through hole is formed downwardly through the center of the upper surface of the mounting top plate (7), a guide rod (8) is slidably sleeved in the upper through hole, and the lower end of the guide rod (8) is fixed above the upper fixing seat (6).

7. The locking tool for processing a notebook computer shaft as claimed in claim 2, characterized in that: A connecting column (52) is provided below the supporting arc plate (51) of the lower fixing seat (5), and the connecting column (52) is connected to the push rod of the lifting cylinder (1) via a screw.

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