Hole expanding clamp for notebook computer rotating shaft base body machining

Abstract

The invention discloses a chambering clamp for notebook computer rotating shaft base body machining, and relates to the field of part machining, the chambering clamp comprises a lower clamp and an upper clamp, a lower clamp body is detachably assembled above the front end of the lower clamp, a shaft groove perpendicular to the direction of the lower clamp is formed above the lower clamp body, the section of the shaft groove is semicircular, and the upper clamp is rotationally installed above the lower clamp. The upper clamp and the lower clamp form a scissor structure, an upper clamp body is installed at the front end of the upper clamp through a fixing plate frame, an inner supporting mechanism is arranged above the lower clamp body and located on the central axis of the shaft groove, and the inner supporting mechanism can be inserted into the shaft hole of the rotating shaft base body to support and position the rotating shaft base body outwards from the inner side of the shaft hole. The inner supporting mechanism is installed above the lower clamping body, so that when the reaming operation of the rotating shaft base body is carried out, due to the fact that the rotating shaft base body is positioned by the inner supporting mechanism, the rotating shaft base body is centered and aligned more accurately, the follow-up reaming operation is more accurate, and the machining quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of part hole, especially to a notebook shaft base machining reaming clamp. BACKGROUND

[0002] It is known that in the manufacturing process of a notebook computer, the shaft is an important component connecting the screen and the main machine, which has the function of bearing and supporting the screen, and the shaft base usually needs to be accurately reamed to ensure the good cooperation and stability of the shaft with other parts of the notebook. In order to realize high efficiency and high precision reaming, it is particularly important to design and use a special reaming clamp; In order to consider the overall lightness of the notebook, some notebook shaft bases adopt the structure of solid main body, hollow end or overall hollow, which can reduce the weight of the notebook. For these shafts, clamping and fixing are needed during machining and reaming. However, most of the current clamps directly clamp the shaft base from the outside at both ends. Since the shaft base is a cylindrical structure, eccentricity of the shaft base may occur during clamping, which may lead to position deviation during subsequent reaming, resulting in an increase in the rejection rate of the shaft base. In addition, since the shaft base has a hollow part, the clamping position may be deformed during clamping, which may also lead to a decrease in the quality of the shaft base. SUMMARY

[0003] (I) Invention purpose Therefore, the purpose of the present application is to provide a notebook shaft base machining reaming clamp. The inner support mechanism is installed above the lower clamp body of the clamp, and is inserted into the shaft hole of the shaft base when the clamp clamps the shaft base, and then supports and positions the shaft base from the inside of the shaft hole. Such a structure makes the shaft base more accurate in centering and positioning during reaming operation, and the subsequent reaming operation is more accurate, ensuring the processing quality.

[0004] (II) Technical scheme In order to achieve the above technical purposes, the application provides a notebook rotating shaft base machining and hole expanding clamp, which is used for clamping a rotating shaft base with shaft holes at two ends, and comprises a lower clamp and an upper clamp, wherein the lower clamp is fixed on a hole expanding device, a lower clamp body is detachably arranged above the front end of the lower clamp, an axial slot perpendicular to the direction of the lower clamp is arranged above the lower clamp body, the cross section of the axial slot is semicircular, the upper clamp is rotatably arranged above the lower clamp and forms a scissors structure with the lower clamp, an upper clamp body is arranged on the front end of the upper clamp through a fixed plate frame, the lower part of the upper clamp body is in a semicircular ring structure, the upper clamp can make the upper clamp body and the lower clamp body combined to form a ring-shaped cladding structure through rotation, and the rotating shaft base in the axial slot is clamped and fixed, an inner supporting mechanism is arranged above the lower clamp body on the central axis of the axial slot, and the inner supporting mechanism can be inserted into the shaft hole of the rotating shaft base to support and position the rotating shaft base from the inside of the shaft hole to the outside.

[0005] As a further description of the above technical solution, the inner supporting mechanism comprises a central shaft and inner clamping pieces, wherein the central shaft is fixed at one end of the lower clamp body, the central shaft is located on the central axis of the axial slot, and a plurality of inner clamping pieces are arranged in an annular array on the outside of the central shaft; when the rotating shaft base is placed in the axial slot, the shaft hole at one end of the rotating shaft base can be fitted on the central shaft, and the inner clamping pieces on the outside of the central shaft press against the inner wall of the shaft hole, thereby supporting the rotating shaft base.

[0006] As a further description of the above technical solution, the inner clamping pieces can move along the radial direction of the central shaft, a through hole is arranged on the surface of the central shaft at the position of the inner clamping pieces in the radial direction, a first wedge-shaped piece is arranged below the inner clamping pieces, the first wedge-shaped piece is movably inserted into the through hole, a pushing assembly is arranged in the central shaft for controlling the outward movement of the inner clamping pieces to clamp the rotating shaft base, before the rotating shaft base is installed, the inner clamping pieces are in a retracted state, i.e., the inner clamping pieces move along the radial direction of the central shaft to approach the central shaft, at this time, the rotating shaft base is installed, and there is a large gap between the inner wall of the rotating shaft base and the inner clamping pieces, which facilitates the installation of the rotating shaft base, after the installation is completed, the inner clamping pieces are controlled to move outwardly along the radial direction by the pushing assembly until the inner wall of the shaft hole of the rotating shaft base is tightly pressed, thereby achieving the self-outward support of the rotating shaft base.

[0007] As a further description of the above technical scheme: the inside of the middle shaft is provided with a through hole in the length direction, the pushing assembly comprises a core rod and a second cylinder, wherein the core rod is movably installed in the inside of the through hole in the length direction of the middle shaft, the surface of the core rod is provided with a second wedge at the position of the first wedge, the wedge surfaces of the first wedge and the second wedge are in contact, the second cylinder is fixedly installed at one end of the lower clamp body, the front end of the piston rod of the second cylinder is connected with one end of the core rod, and the core rod can be pushed to move forward and backward when the second cylinder is in operation; since the wedge surfaces of the first wedge and the second wedge are in contact and matched, under the cooperation of the first wedge and the second wedge, when the core rod is pushed forward, the second wedge pushes the first wedge outward, thereby achieving the pushing control of the inner clamping piece.

[0008] As a further description of the above technical scheme: the center of the first wedge is provided with an inner hole, the middle shaft is provided with a top piece at the center position of the through hole, a spring is arranged between the inner wall of the inner hole and the top piece, the spring can always provide a pulling force to the first wedge in the direction of the middle shaft axis, and the pulling force can pull the inner clamping piece to retreat when the core rod is controlled to shrink, thereby achieving the automatic reset effect.

[0009] As a further description of the above technical scheme: a support plate is fixedly installed on the free end of the core rod, the support plate is slidably installed in the through hole, and at least one limiting sliding convex is arranged on the edge of the support plate; a limiting sliding groove matched with the limiting sliding convex is formed in the inner wall of the through hole in the length direction, and the limiting sliding convex is slidably assembled in the limiting sliding groove; therefore, when the core rod moves, the stability of the core rod is higher under the limiting action of the limiting sliding convex and the limiting sliding groove.

[0010] As a further description of the above technical scheme: the bottom of the lower clamp body is provided with an insertion plate, the front end of the lower clamp is provided with a buckling groove, the center position of the buckling groove is provided with a socket, the lower clamp body is clamped in the buckling groove, the insertion plate is inserted into the socket from top to bottom, and a bolt for locking the insertion plate is inserted and installed at the front end of the lower clamp; based on this, the position of the lower clamp body can be accurately ensured when the lower clamp body is installed, and when the bolt locking the insertion plate is disassembled, the entire lower clamp body can be pulled out upward and taken off, thereby facilitating replacement.

[0011] As a further description of the above technical solution: the middle part of the two sides of the lower clamp is provided with a protruding part, the middle part of the upper clamp is rotatably installed between the two protruding parts through a rotating shaft, the rear end of the lower clamp is provided with a through opening, the rear end of the lower clamp is provided with a first air cylinder below, a movable connecting piece is movably installed on the piston rod of the first air cylinder, the rear end of the upper clamp is provided with an assembly groove, and one end of the movable connecting piece is rotatably installed in the assembly groove. Based on this, when the first air cylinder is stretched and retracted, the rear end of the upper clamp can be pulled or pushed to move, and through the lever principle, the front end of the upper clamp moves synchronously, so that the upper clamp body at the front end of the upper clamp realizes clamping and separation with the lower clamp body.

[0012] As a further description of the above technical solution: the lower part of the movable connecting piece is in an inverted U-shaped structure, and the upper part is in an I-shaped structure, the piston rod of the first air cylinder is rotatably installed on the inner side of the U-shaped structure below the movable connecting piece through a rotating shaft, and the upper part of the movable connecting piece is rotatably installed on the inner side of the assembly groove through a rotating shaft. Such a double-section movable structure can avoid the situation that the upper clamp is stuck when moving.

[0013] As a further description of the above technical solution: the fixed plate frame is fixed at the front end of the upper clamp through bolts, the front end of the fixed plate frame and the top of the upper clamp body are provided with fixed protrusions, the fixed protrusions are inserted between the two vertical ends of the H-shaped connecting piece, and are rotatably connected through a pin shaft, and the H-shaped connecting piece and the fixed plate frame are movably connected, and the upper clamp body and the H-shaped connecting piece are movably connected. Such a structure makes the fixed plate frame not be blocked by the rotating shaft base body when the upper clamp rotates upward or downward, ensuring smooth clamping.

[0014] In the technical scheme, the notebook shaft base machining and hole expanding clamp provided by the application is characterized in that the clamping structure of the clamp, namely the upper clamping body and the lower clamping body, is detachably installed, so that the upper clamping body and the lower clamping body can be replaced according to the type of the shaft base to be machined, thereby improving the applicability of the device; the lower clamping body of the clamp is provided with an inner supporting mechanism, which is inserted into the shaft hole of the shaft base when the clamp clamps the shaft base, and then supports and positions the shaft base from the inside to the outside of the shaft hole; the structure makes the shaft base more accurately centered and positioned during the hole expanding operation of the shaft base, so that the subsequent hole expanding operation is more accurate, thereby ensuring the machining quality; in addition, the inner supporting mechanism, the external shaft groove and the upper clamping body form the effect of "inner and outer supporting and bidirectional clamping", so that the shaft base is more stably fixed, and the clamping part of the shaft base is not easily deformed under pressure during clamping; and the structure of the inner supporting mechanism can not only support and clamp the shaft base from the inside, but also facilitate the installation of the shaft base. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute the embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0016] Figure 1 The overall structure schematic diagram of the notebook shaft base machining and hole expanding clamp provided by the application is shown in the figure. Figure 2 The structure schematic diagram of another perspective view of the notebook shaft base machining and hole expanding clamp provided by the application is shown in the figure. Figure 3 The bottom view of the notebook shaft base machining and hole expanding clamp provided by the application is shown in the figure. Figure 4 The structure schematic diagram of the notebook shaft base machining and hole expanding clamp when it is opened is shown in the figure. Figure 5 The installation structure schematic diagram of the upper clamping body in the notebook shaft base machining and hole expanding clamp provided by the application is shown in the figure. Figure 6 The installation structure schematic diagram of the middle shaft in the notebook shaft base machining and hole expanding clamp provided by the application is shown in the figure. Figure 7 The internal structure schematic diagram of the middle shaft in the notebook shaft base machining and hole expanding clamp provided by the application is shown in the figure. Figure 8A schematic diagram of an inner clamping piece mounting structure in a notebook shaft base machining reaming clamp is provided.

[0017] BRIEF DESCRIPTION OF DRAWINGS: 1, lower clamp; 10, buckling groove; 11, protruding part; 12, rotating shaft; 13, through port; 14, spigot; 2, upper clamp; 20, assembly groove; 3, lower clamp body; 30, shaft groove; 31, plugboard; 32, central shaft; 320, through hole; 321, limiting sliding groove; 322, through hole; 323, top piece; 33, inner clamping piece; 34, shaft sleeve; 35, core rod; 36, spring; 37, first wedge-shaped part; 370, inner hole; 38, second wedge-shaped part; 39, support plate; 390, limiting sliding convex; 4, fixed plate frame; 40, fixed convex head; 41, H-shaped connecting piece; 5, upper clamp body; 6, first air cylinder; 60, movable connecting piece; 7, second air cylinder. DETAILED DESCRIPTION

[0018] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application and uses. It should be understood that throughout the drawings, the same or similar reference numerals are used to designate the same or similar parts and features. The various drawings merely schematically represent the ideas and principles of the embodiments of the present disclosure and do not necessarily show the specific dimensions and their proportions of the various embodiments of the present disclosure. Certain parts in certain drawings can be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0019] As Figures 1-8 shown, the present embodiment provides a technical solution: a notebook shaft base machining reaming clamp, which is used for clamping a shaft base with shaft holes at both ends, and includes a lower clamp 1 and an upper clamp 2. The lower clamp 1 is fixed on a reaming device, and a lower clamp body 3 is detachably assembled above the front end of the lower clamp 1. A shaft groove 30 perpendicular to the direction of the lower clamp 1 is arranged above the lower clamp body 3, and the cross section of the shaft groove 30 is semicircular. The upper clamp 2 is rotationally installed above the lower clamp 1 to form a scissors structure with the lower clamp 1. An upper clamp body 5 is installed on the front end of the upper clamp 2 through a fixed plate frame 4, and the lower part of the upper clamp body 5 is in a semicircular ring structure. The upper clamp 2 can be rotated to make the upper clamp body 5 and the lower clamp body 3 combined to form a ring-shaped cladding structure, thereby clamping and fixing the shaft base in the shaft groove 30. An inner supporting mechanism is arranged above the lower clamp body 3 on the central axis of the shaft groove 30, and the inner supporting mechanism can be inserted into the shaft hole of the shaft base to support and position the shaft base from the inside of the shaft hole; Working principle: when the device is in use, the clamp is first fixed on the hole expanding equipment, at this time, the front end of the upper clamp 2 is in an open state, at this time, the end of the shaft base body is clamped above the shaft groove 30, and the inner supporting mechanism enters the shaft hole of the end of the shaft base body, after completion, the shaft base body is supported and positioned from the inside to the outside of the shaft hole through the inner supporting mechanism, after the support is completed, the upper clamp 2 is controlled to rotate, so that the upper clamp body 5 on the upper clamp 2 clamps and fixes the shaft base body in the shaft groove 30, that is, the clamping process is completed; In summary: the clamping structure of the clamp, that is, the upper clamp body 5 and the lower clamp body 3 are detachably installed, so that they can be replaced according to the specific shaft base body model to be processed, thereby improving the applicability of the device, and the inner supporting mechanism is installed above the lower clamp body 3 of the clamp, and the inner supporting mechanism is inserted into the shaft hole of the shaft base body when the clamp clamps the shaft base body, and then the shaft base body is supported and positioned from the inside to the outside of the shaft hole, such a structure makes the shaft base body centered and positioned more accurately when the hole expanding operation of the shaft base body is performed, so that the subsequent hole expanding operation is more accurate, thereby ensuring the processing quality, in addition, the inner supporting mechanism cooperates with the external shaft groove 30 and the upper clamp body 5 to form the effect of "inner and outer support, bidirectional clamping", which can make the fixation of the shaft base body more stable, and the clamping part of the shaft base body is not easy to be deformed under pressure.

[0020] Specifically, as shown in Figures 6-8 In order to realize the support and clamping of the shaft base body, in the embodiment, the inner supporting mechanism includes a middle shaft 32 and an inner clamping piece 33, wherein the middle shaft 32 is fixed at one end of the lower clamp body 3, the middle shaft 32 is located on the middle axis of the shaft groove 30, and the inner clamping piece 33 is arranged in an annular array on the outer side of the middle shaft 32. Based on this, when the shaft base body is placed inside the shaft groove 30, the shaft hole at one end of the shaft base body can be sleeved on the middle shaft 32, and the inner clamping piece 33 on the outer side of the middle shaft 32 presses against the inner wall of the shaft hole, thereby supporting the shaft base body.

[0021] Specifically, as shown in Figures 6-8As shown, in order to enable the inner support mechanism to support the rotating shaft base from inside to outside, and facilitate the installation of the rotating shaft base, in the embodiment, the inner clamping piece 33 can move along the radial direction of the central shaft 32, the surface of the central shaft 32 is provided with a through hole 322 at the position of the inner clamping piece 33, the lower side of the inner clamping piece 33 is provided with a first wedge 37, the first wedge 37 is movably inserted into the through hole 322, and the inside of the central shaft 32 is provided with a pushing assembly for controlling the outward movement of the inner clamping piece 33 to clamp the rotating shaft base. Based on this, before the rotating shaft base is installed, the inner clamping piece 33 is in a retracted state, that is, the inner clamping piece 33 moves along the radial direction of the central shaft 32 to make the inner clamping piece 33 close to the central shaft 32. At this time, the rotating shaft base is installed, and there is a large gap between the inner wall of the rotating shaft base and the inner clamping piece 33, which can facilitate the installation of the rotating shaft base. After the installation is completed, the inner clamping piece 33 is controlled to move outward along the radial direction by the pushing assembly until the inner clamping piece 33 is tightly pressed against the inner wall of the shaft hole of the rotating shaft base, thereby realizing the self-supporting of the rotating shaft base from inside to outside.

[0022] Specifically, as shown in Figures 6-8 in order to realize the pushing control of the inner clamping piece 33, in the embodiment, the inside of the central shaft 32 is provided with a through hole 320 along the length direction, and the pushing assembly includes a core rod 35 and a second cylinder 7. The core rod 35 is movably installed in the inside of the through hole 320 along the length direction of the central shaft 32, the surface of the core rod 35 is provided with a second wedge 38 which is matched with the first wedge 37 at the position of the first wedge 37, the wedge surfaces of the first wedge 37 and the second wedge 38 are in contact, and the second cylinder 7 is fixedly installed at one end of the lower clamping body 3. The front end of the piston rod of the second cylinder 7 is connected with one end of the core rod 35. Based on this, when the second cylinder 7 is running, it can push the core rod 35 to move forward and backward. Since the wedge surfaces of the first wedge 37 and the second wedge 38 are in contact and matched, under the cooperation of the first wedge 37 and the second wedge 38, when the core rod 35 is pushed forward, the second wedge 38 will push the first wedge 37 outward, thereby realizing the pushing control of the inner clamping piece 33.

[0023] Specifically, as shown in Figures 6-8 Since the pushing of the first wedge 37 and the second wedge 38 is one-way, the cooperation of the first wedge 37 and the second wedge 38 can only push the inner clamping piece 33 outward, and cannot make the inner clamping piece 33 retreat. In order to solve this problem, in the embodiment, the center of the first wedge 37 is provided with an inner hole 370, the central shaft 32 is provided with a top piece 323 at the central position of the through hole 322, and the inner wall of the inner hole 370 and the top piece 323 are provided with a spring 36. Based on this, the spring 36 can always provide a pulling force to the first wedge 37 in the direction of the central axis of the inner clamping piece 33. The pulling force can pull the inner clamping piece 33 to retreat when the core rod 35 is controlled to shrink by the second cylinder 7, thereby achieving the effect of automatic reset.

[0024] Specifically, as shown in Figures 6-8 To ensure the stability of the core rod 35, in the embodiment, a support plate 39 is fixedly installed on the free end of the core rod 35, the support plate 39 is slidingly installed in the through hole 320, and the edge of the support plate 39 is provided with at least one limiting sliding convex 390, the inner wall of the through hole 320 is provided with a limiting sliding groove 321 along the length direction, and the limiting sliding convex 390 is slidingly assembled in the limiting sliding groove 321. Therefore, when the core rod 35 moves, the stability of the core rod 35 is higher under the limiting action of the limiting sliding convex 390 and the limiting sliding groove 321. In addition, it should be noted that one end of the lower clamp body 3 is also provided with a shaft sleeve 34, and the shaft sleeve 34 and the shaft groove 30 form a circular ring structure. Through this structure, the shaft base body can be preliminarily clamped when the shaft base body is inserted, which is convenient for subsequent clamping of the shaft base body.

[0025] Specifically, as shown in Figures 1-4 To realize the detachable installation of the lower clamp body 3, in the embodiment, the bottom of the lower clamp body 3 is provided with an insertion plate 31, the front end of the lower clamp 1 is provided with a buckling groove 10, the center of the buckling groove 10 is provided with an insertion port 14, the lower clamp body 3 is clamped in the buckling groove 10, and the insertion plate 31 is inserted into the insertion port 14 from top to bottom. The front end of the lower clamp 1 is provided with a bolt for locking the insertion plate 31. Based on this, the position of the lower clamp body 3 can be ensured to be accurate during installation through the buckling groove 10. When the bolt locking the insertion plate 31 is disassembled, the entire lower clamp body 3 can be pulled out upward and removed, which is convenient for replacement.

[0026] Specifically, as shown in Figures 1-4 To realize the clamping control of the lower clamp 1 and the upper clamp 2, in the embodiment, the middle part of the two sides of the lower clamp 1 is provided with a protruding part 11, the middle part of the upper clamp 2 is rotatably installed between the two protruding parts 11 through a rotating shaft 12, the rear end of the lower clamp 1 is provided with a through port 13, the rear end of the lower clamp 1 is provided with a first air cylinder 6 below, a movable connecting piece 60 is movably installed on the piston rod of the first air cylinder 6, the rear end of the upper clamp 2 is provided with an assembly groove 20, and one end of the movable connecting piece 60 is rotatably installed in the assembly groove 20. Based on this, when the first air cylinder 6 is stretched and contracted, the rear end of the upper clamp 2 can be pulled or pushed to move. Through the lever principle, the front end of the upper clamp 2 moves synchronously, so that the front end of the upper clamp 2 and the lower clamp body 3 realize clamping and separation.

[0027] Specifically, as shown in Figures 1-4As shown, in order to avoid the situation of jamming when the upper fixture 2 is moving, in this embodiment, the lower part of the movable connecting member 60 is in an inverted U-shaped structure, and the upper part is in an I-shaped structure. The piston rod of the first cylinder 6 is rotatably installed inside the U-shaped structure at the lower part of the movable connecting member 60 through a rotating shaft, and the upper part of the movable connecting member 60 is rotatably installed inside the assembly groove 20 through a rotating shaft. Such a double-segment movable structure can avoid the situation of jamming when the upper fixture 2 is moving.

[0028] Specifically, as Figures 1-5 shown, in order to install the upper clamping body 5 and ensure that the upper clamping body 5 can cooperate with the lower clamping body 3 to clamp the rotating shaft base body, in this embodiment, the fixing plate frame 4 is fixed to the front end of the upper fixture 2 by bolts. Fixed convex heads 40 are provided below the front end of the fixing plate frame 4 and on the top of the upper clamping body 5. The fixed convex heads 40 on the fixing plate frame 4 and the upper clamping body 5 are movably connected by an H-shaped connecting member 41. Based on this, the fixed convex head 40 is inserted between the two vertical ends of the H-shaped connecting member 41 and is rotatably connected by a pin shaft. Both between the H-shaped connecting member 41 and the fixing plate frame 4 and between the upper clamping body 5 and the H-shaped connecting member 41 are movably connected. Such a structural setting makes it possible that when the fixing plate frame 4 rotates up or down following the upper fixture 2, it will not be blocked by the rotating shaft base body, ensuring the smoothness of clamping.

[0029] In the above text, the exemplary embodiments of the solution proposed by the present disclosure have been described in detail with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present disclosure can be made, without exceeding the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Claims

1. A notebook rotating shaft base machining reaming jig for clamping a rotating shaft base having shaft holes at both ends, characterized by, It includes: Lower clamp (1), which is fixed on the chambering device, the front end of the lower clamp (1) is detachably assembled with the lower clamp body (3), the upper side of the lower clamp body (3) is provided with an axial slot (30) perpendicular to the direction of the lower clamp (1), and the cross section of the axial slot (30) is semicircular; The upper clamp (2) is rotatably installed above the lower clamp (1) and forms a scissors structure with the lower clamp (1), the front end of the upper clamp (2) is provided with an upper clamp body (5) through a fixed plate frame (4), the lower side of the upper clamp body (5) is in a semicircular ring structure, and the upper clamp (2) can be combined with the lower clamp body (3) to form a ring-shaped cladding structure by rotating the upper clamp body (5), so as to clamp and fix the shaft base body in the axial slot. Wherein, the inner support mechanism is arranged on the central axis of the axial slot (30) on the upper side of the lower clamp body (3), and can be inserted into the shaft hole of the shaft base body to support and position the shaft base body from the inside of the shaft hole.

2. The machining reaming jig for a notebook rotating shaft base body according to claim 1, wherein The inner support mechanism comprises: A middle shaft (32) is fixed at one end of the lower clamp body (3), and the middle shaft (32) is located on the central axis of the axial slot (30); A plurality of inner clamping pieces (33) are arranged in a ring array on the outer side of the middle shaft (32).

3. The machining reaming jig for notebook rotating shaft base body according to claim 2, wherein The inner clamping piece (33) can move radially along the middle shaft (32), the surface of the middle shaft (32) is provided with a through hole (322) in the radial direction at the position of the inner clamping piece (33), the lower side of the inner clamping piece (33) is provided with a first wedge (37), the first wedge (37) is movably inserted into the through hole (322), and a pushing assembly is installed in the middle shaft (32) for controlling the outward movement of the inner clamping piece (33) to clamp the shaft base body.

4. The machining reaming jig for a notebook rotating shaft base body according to claim 3, wherein A through hole (320) is formed in the length direction of the middle shaft (32), and the pushing assembly comprises: A core rod (35) is movably installed in the through hole (320) in the length direction of the middle shaft (32), the surface of the core rod (35) is provided with a second wedge (38) matched with the first wedge (37) at the position of the first wedge (37), and the wedge surfaces of the first wedge (37) and the second wedge (38) are in contact; A second air cylinder (7) is fixedly installed at one end of the lower clamp body (3), and the front end of the piston rod of the second air cylinder (7) is connected with one end of the core rod (35).

5. The machining reaming jig for notebook rotating shaft base body according to claim 4, wherein A through hole (370) is formed in the center of the first wedge (37), a top piece (323) is arranged on the middle shaft (32) at the center position of the through hole (322), and a spring (36) is arranged between the inner wall of the through hole (370) and the top piece (323).

6. The machining reaming jig for notebook rotating shaft base body according to claim 5, wherein The free end of the core rod (35) is fixedly provided with a support plate (39), the support plate (39) is slidingly installed in the through hole (320), and the edge of the support plate (39) is provided with at least one limiting sliding convex (390), and the inner wall of the through hole (320) is provided with a limiting sliding groove (321) along the length direction, and the limiting sliding convex (390) is slidingly assembled in the limiting sliding groove (321).

7. The machining reaming jig for a notebook rotating shaft base body according to any one of claims 1 to 6, wherein The bottom of the lower clamp body (3) is provided with an insertion plate (31), the front end of the lower clamp (1) is provided with a buckling groove (10), the center of the buckling groove (10) is provided with an insertion port (14), the lower clamp body (3) is clamped in the buckling groove (10), the insertion plate (31) is inserted into the insertion port (14) from top to bottom, and the front end of the lower clamp (1) is provided with a bolt for locking the insertion plate (31).

8. The machining reaming jig for a notebook rotating shaft base body according to any one of claims 1 to 6, wherein The middle part of the lower clamp (1) is provided with a convex part (11), the middle part of the upper clamp (2) is rotatably installed between the two convex parts (11) through a rotating shaft (12), the rear end of the lower clamp (1) is provided with a through hole (13), the rear end of the lower clamp (1) is provided with a first air cylinder (6), the piston rod of the first air cylinder (6) is movably provided with a movable connecting piece (60), the rear end of the upper clamp (2) is provided with an assembly groove (20), and one end of the movable connecting piece (60) is rotatably installed in the assembly groove (20).

9. The machining reaming jig for a notebook rotating shaft base body according to claim 8, wherein The movable connecting piece (60) is in an inverted U-shaped structure at the lower part and in an I-shaped structure at the upper part, the piston rod of the first air cylinder (6) is rotatably installed in the inner side of the U-shaped structure at the lower part of the movable connecting piece (60), and the upper part of the movable connecting piece (60) is rotatably installed in the inner side of the assembly groove (20).

10. The machining reaming jig for a notebook rotating shaft base body according to any one of claims 1 to 6, wherein The fixed plate frame (4) is fixedly provided at the front end of the upper clamp (2), the front end of the fixed plate frame (4) and the top of the upper clamp body (5) are provided with fixed convex heads (40), and the fixed convex heads (40) on the fixed plate frame (4) and the upper clamp body (5) are movably connected through an H-shaped connecting piece (41).

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