CN220782294U - Boring device for processing long shaft hole of sliding block - Google Patents

Abstract

The utility model discloses a boring device for processing a long shaft hole of a sliding block, which comprises a first bracket supporting component and a second bracket supporting component which are arranged at the bottom of the sliding block in parallel at intervals, a first height adjusting unit arranged on the first bracket supporting component, a second height adjusting unit arranged on the second bracket supporting component, a first boring bar fixing component arranged on the first height adjusting unit and a second boring bar fixing component arranged on the second height adjusting unit; according to the utility model, the heights of the two boring bar fixing components are finely adjusted by adjusting the heights of the adjusting nuts on the two height adjusting units according to the shaft hole heights of the long shaft hole of the slider to be bored, so that the axis of the boring bar is aligned with the axis of the long shaft hole of the slider to be processed, the boring bar is jointly fixed by the two boring bar fixing components, the vibration phenomenon in the processing process of the long shaft hole of the slider is effectively reduced, and the processing size and tolerance precision of the shaft hole of the slider are improved.

Description

Boring device for processing long shaft hole of sliding block

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a boring device for machining a long shaft hole of a sliding block.

Background

The mechanical upper ejection of the screw press is an external upper ejection device of an oil cylinder, and a gear shaft in the device is installed and needs to be provided with a long shaft hole which penetrates through the bottom of a sliding block. In order to ensure the stability and the transmission efficiency of transmission, the machining of the shaft hole needs to ensure the precision of the dimension and the tolerance. At present, the long shaft hole is machined by self-made lengthened boring bars, the extending end of the simple lengthened boring bar is not fixed and is limited by the diameter of the shaft hole, the diameter of the lengthened boring bar is often smaller, the rigidity of the lengthened and extended boring bar is insufficient, and the phenomenon that the boring bar jumps and shakes the cutter can occur when the long shaft hole is machined. The phenomenon of boring bar runout and cutter vibration can cause the major axis hole precision of processing not enough, can appear going up the dead condition of liftout device during operation gear shaft card after the installation gear shaft to appear cutter vibration phenomenon can accelerate to damage the boring cutter when boring, delay the processing progress and cause unnecessary economic loss.

Therefore, a boring device for processing the long shaft hole of the slider is needed to effectively reduce the jump of the boring bar and the vibration knife during boring.

Disclosure of Invention

In order to meet the above defects or improvement demands of the prior art, the utility model provides a boring device for processing a long shaft hole of a sliding block, wherein a first bracket supporting component and a second bracket supporting component are arranged at the front end and the rear end of the sliding block, a first height adjusting unit is arranged on the first bracket supporting component, a second height adjusting unit is arranged on the second bracket supporting component, a first boring bar fixing component is arranged on the first height adjusting unit, a second boring bar fixing component is arranged on the second height adjusting unit, a boring bar penetrates through the long shaft hole on the sliding block, one end of the boring bar is fixed through the first boring bar fixing component, and the other end of the boring bar is fixed through the second boring bar fixing component; after the height position of the boring bar is adjusted through the first height adjusting unit and the second height adjusting unit, the long shaft Kong Tanggan of the sliding block is positioned together through the first bottom supporting bearing bush and the gland bearing bush of the first boring bar fixing assembly and the second bottom supporting bearing bush fixed by the second boring bar fixing assembly, and the boring bar gland is fixed with the first bearing bush bracket, so that the jumping of the lengthened boring bar can be effectively reduced during boring, the cutter vibration phenomenon in the processing process is effectively reduced, and the size and tolerance precision of the shaft hole are ensured; the boring machine can solve the problems that in the prior art, when a long shaft hole of a sliding block is machined, the boring rod is jumped and the cutter shakes to cause insufficient precision of the machined long shaft hole, and when boring, the cutter shakes to cause accelerated damage to the boring cutter, delay the machining progress and cause unnecessary economic loss.

In order to achieve the above object, the present utility model provides a boring device for processing a long shaft hole of a slider, comprising a first bracket supporting component and a second bracket supporting component which are arranged at the bottom of the slider, a first height adjusting unit arranged on the first bracket supporting component, a second height adjusting unit arranged on the second bracket supporting component, a first boring bar fixing component arranged on the first height adjusting unit, and a second boring bar fixing component arranged on the second height adjusting unit; the first bracket supporting component and the second bracket supporting component are arranged at intervals in parallel along the central axis direction of the long shaft hole on the sliding block; the boring bar passes through the long shaft hole on the sliding block, one end of the boring bar is fixed through the first boring bar fixing component, and the other end of the boring bar is fixed through the second boring bar fixing component.

Further, the first bracket support assembly and the second bracket support assembly have the same structure and comprise a support base, a cushion block arranged at the top of the support base and a bracket support arranged at the top of the cushion block.

Further, the first height adjusting unit and the second height adjusting unit have the same structure and comprise a bearing bush support adjusting rod arranged at the center of the top of the bracket support and an adjusting nut arranged on the bearing bush support adjusting rod;

the adjusting nut is screwed on the adjusting rod of the bearing bush support and supported on the top plate of the bracket support.

Further, the first boring bar fixing assembly comprises a first bearing bush support arranged at the top of the bearing bush support adjusting rod, a first bottom support bearing bush arranged on the upper surface of the first bearing bush support, a gland bush arranged at the top of the first bottom support bearing bush and a boring bar gland arranged at the top of the gland bush;

the first bottom support bearing bush and the gland bearing bush are oppositely arranged, and a hole for a boring bar to pass through is formed in the middle;

the second boring bar fixing assembly comprises a second bearing bush support arranged at the top of the bearing bush support adjusting rod and a second bottom supporting bearing bush arranged on the upper surface of the second bearing bush support.

Further, the bottom of the first bearing bush support is a plane, and the top of the first bearing bush support is a semicircular notch which is concave downwards; an arc-shaped clamping protrusion is arranged on the upper surface of the semicircular notch;

the second bearing bush support and the first bearing bush support have the same structure.

Further, the first bottom supporting bearing bush is a semi-arc block, an arc clamping groove matched with the arc clamping protrusion on the upper surface of the first bearing bush support is formed in the bottom of the first bottom supporting bearing bush, and the top of the first bottom supporting bearing bush is matched with the outer surface radian of the boring bar;

the first bottom supporting bearing bush is fixed with an arc-shaped clamping protrusion on the first bearing bush support;

the second bottom support bushing is identical in structure to the first bottom support bushing.

Further, the first boring bar fixing assembly further comprises a bearing bush support guide bar arranged between the bracket support and the first bearing bush support;

the second boring bar fixing assembly further comprises a second bearing bracket guide bar arranged between the bracket support and the second bearing bracket.

Further, the gland bush is a semi-arc block which is matched with the outer surface radian of the boring bar;

the outer cambered surface of the gland bush is provided with a groove consistent with the radian of the gland bush; the semi-arc pressing block is partially inlaid in the groove; the gland bush is fixed with the boring bar gland.

Further, the boring bar gland comprises a semi-arc-shaped pressing block with the same radian as the outer surface of the gland bush and fixing lugs arranged at two ends of the semi-arc-shaped pressing block;

the fixed lugs are fixed on the first bearing bush support.

Further, the boring bar comprises a first bar body and a second bar body which are manufactured in an integral mode, and a hole machining tool mounting position is arranged at the joint of the first bar body and the second bar body;

the cushion block and the boring bar are both replaceable parts, the dimensions of the cushion block and the boring bar are determined according to the size of the long shaft hole on the sliding block.

In general, the above technical solutions conceived by the present utility model, compared with the prior art, the following beneficial effects can be achieved:

(1) According to the boring device for processing the long shaft hole of the sliding block, the first bracket supporting component and the second bracket supporting component are arranged at the front end and the rear end of the sliding block, the first bracket supporting component is provided with the first height adjusting unit, the second bracket supporting component is provided with the second height adjusting unit, the first boring bar fixing component is arranged on the first height adjusting unit, the second boring bar fixing component is arranged on the second height adjusting unit, the first boring bar fixing component comprises the first bearing bush support, the first bottom supporting bearing bush arranged on the upper surface of the first bearing bush support, the gland bush arranged on the top of the first bottom supporting bearing bush and the boring bar gland arranged on the top of the gland bush and fixed with the first bearing bush support, the second boring bar fixing component comprises the second bearing bush support which is identical to the first bearing bush support in structure and the second bottom supporting bearing bush arranged on the upper surface of the second bearing bush support, after the boring bar height positions are adjusted through the first bottom supporting bearing bush, the gland bush and the second bottom supporting locating the long shaft hole is fixed through the first bottom supporting bush, the gland and the second bottom supporting boring bar, and the boring bar can effectively reduce the size of the boring bar and the boring bar in the boring device, and the tolerance in the boring process can be effectively reduced.

(2) The utility model relates to a boring device for processing a long shaft hole of a sliding block, which comprises a first height adjusting unit and a second height adjusting unit, wherein the first height adjusting unit and the second height adjusting unit are respectively provided with a bearing bush support adjusting rod arranged at the top center of a bracket support and an adjusting nut which is arranged on the bearing bush support adjusting rod in a screwing way; meanwhile, bearing bush support guide rods are respectively arranged between the bracket support and the first bearing bush support of the first boring bar fixing assembly and between the bracket support and the second bearing bush support of the second boring bar fixing assembly, fine adjustment of the height of the boring bar is achieved by adjusting the height of the adjusting nut, the axis of the boring bar is aligned with the axis of a long shaft hole which needs to be machined of the sliding block, the height position precision of the long shaft hole of the sliding block is effectively guaranteed, and accurate positioning of the boring bar is achieved.

(3) According to the boring device for processing the long shaft holes of the sliding blocks, the adopted cushion blocks and boring bars for boring are replaceable, and when the long shaft holes of the sliding blocks of different types are processed, the cushion blocks with corresponding heights and the boring bars with corresponding lengths can be used according to the sizes of the corresponding shaft holes, so that the boring device is convenient and quick to replace; and further, the processing tool for the long shaft holes of the sliding block can be used in processing scenes of long shaft holes with various sizes, and is simple and convenient to use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a boring device for processing a long shaft hole of a slider according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a part of the boring device for boring a long shaft hole of a slider in FIG. 1, which is far away from the boring machine;

FIG. 3 is an enlarged schematic view of a part of the boring device for boring a long shaft hole of a slider, which is close to the boring machine in FIG. 1, according to an embodiment of the present utility model;

FIG. 4 is a schematic side view of a boring machine for boring a long shaft hole of a slider according to an embodiment of the present utility model (A in FIG. 1);

FIG. 5 is a schematic side view of a boring machine for boring a long shaft hole of a slider according to an embodiment of the present utility model (B in FIG. 1);

FIG. 6 shows a method for machining a long shaft hole of a slider according to an embodiment of the utility model a three-dimensional structure schematic diagram of a boring device at the side far away from the boring machine;

FIG. 7 is a schematic view of a three-dimensional structure of a boring device for boring a long shaft hole of a slider near a boring machine according to an embodiment of the present utility model;

FIG. 8 is an enlarged schematic view of a cross-sectional structure of a hole machining installation position of a boring device for machining a long shaft hole of a slider (front view-direction perpendicular to a boring bar) according to an embodiment of the present utility model;

fig. 9 is a schematic cross-sectional view of a boring tool mounting position (side view-cross-sectional view of boring bar, consistent with the direction of the longitudinal central axis of the boring bar) of a boring device for boring a long axis hole of a slider according to an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular: 100-sliding blocks, 1-supporting bases, 2-cushion blocks, 3-bracket supports, 31-bottom plates, 32-supporting plates, 33-top plates, 4-bearing support adjusting rods, 5-adjusting nuts, 6-first bearing supports, 61-arc clamping protrusions, 7-bearing support guide rods, 8-first bottom supporting bearings, 9-gland bearings, 10-boring bar covers, 101-semi-arc pressing blocks, 102-fixed lugs, 11-second bearing supports, 12-second bottom supporting bearings, 13-boring bars, 131-first rod bodies, 132-second rod bodies, 133-hole machining tool mounting positions and 134-screws.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, it will be understood that when an element is referred to as being "mounted," "disposed," or "disposed" on another element, it can be directly on the other element or be indirectly on the other element unless explicitly stated and limited otherwise. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element; the terms "mounted," "connected," and "provided" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thereby the processing time of the product is reduced, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1 to 7, the boring device for processing the long shaft hole of the sliding block provided by the utility model is used for processing a long shaft hole penetrating through the bottom of a sliding block when a gear shaft is installed in a jacking device on a screw press machine, and comprises a first bracket supporting component and a second bracket supporting component which are arranged at the bottom of the sliding block 100 at intervals in parallel along the central axis direction of the long shaft hole on the sliding block 100, a first height adjusting unit arranged on the first bracket supporting component, a second height adjusting unit arranged on the second bracket supporting component, a first boring bar fixing component arranged on the first height adjusting unit and a second boring bar fixing component arranged on the second height adjusting unit; the first and second bracket support assemblies are located at front and rear sides of the slider 100; the front-back direction is the direction consistent with the central axis direction of the long shaft hole of the sliding block; the boring bar 13 passes through a long shaft hole on the sliding block 100, one end of the boring bar is fixed through a first boring bar fixing component, the other end of the boring bar is fixed through a second boring bar fixing component, and then the boring bar 13 is placed on a processing tool of the long shaft hole of the sliding block; during operation, the heights of the first boring bar fixing component and the second boring bar fixing component are adjusted according to the shaft hole height of the long shaft hole of the sliding block to be bored, the heights of the adjusting nuts 5 on the first height adjusting unit and the second height adjusting unit are adjusted, the axis of the boring bar 13 is aligned with the axis of the long shaft hole to be machined of the sliding block 100, the accurate positioning of the boring bar 13 is achieved, the boring bar is fixed through the first boring bar fixing component and the second boring bar fixing component, the cutter vibration phenomenon in the machining process of the long shaft hole of the sliding block is effectively reduced, and the machining size and tolerance precision of the long shaft hole of the sliding block are improved.

Further, as shown in fig. 1 to 7, the first bracket support assembly and the second bracket support assembly have the same structure and each include a support base 1, a cushion block 2 arranged at the top of the support base 1, and a bracket support 3 arranged at the top of the cushion block 2; the part of the support base 1, which is close to the sliding block 100, is positioned below the end part of the sliding block 100, and the cushion block 2 is arranged on one side, far away from the sliding block 100, of the upper surface of the support base 1; the bracket support 3 comprises a bottom plate 31, two support plates 32 vertically arranged on the top of the bottom plate 31, and a top plate 33 arranged on the top of the two support plates 32; the two support plates 32 are arranged in parallel at intervals; the bottom plate 31 and the top plate 33 are parallel to each other; the cushion block 2 is arranged below the bottom plate 31; the thickness of the cushion block 2 is determined according to the shaft hole height of the slide block long shaft hole required to be bored; the cushion blocks 2 are preferably 2 blocks, and are arranged at the bottom of the bottom plate 31 at intervals in parallel.

Further, as shown in fig. 1 to 7, the first height adjusting unit and the second height adjusting unit have the same structure and each include a bearing bush support adjusting rod 4 arranged at the top center of the bracket support 3 and an adjusting nut 5 arranged on the bearing bush support adjusting rod 4; the adjusting nut 5 is screwed on the bearing bush support adjusting rod 4 and supported on the bracket support 3.

Further, as shown in fig. 1 to 7, the first boring bar fixing assembly includes a first bearing bush support 6 disposed at the top of the bearing bush support adjusting rod 4, a bearing bush support guide rod 7 disposed between the bracket support 3 and the first bearing bush support 6, a first bottom supporting bearing bush 8 disposed on the upper surface of the first bearing bush support 6, a gland bush 9 disposed at the top of the first bottom supporting bearing bush 8, and a boring bar gland 10 disposed at the top of the gland bush 9; the first bottom support bearing bush 8 and the gland bearing bush 9 are oppositely arranged, and a hole for a boring bar 13 to pass through is formed in the middle; the two ends of the boring bar gland 10 are fixed with the first bearing bush support 6, so that the first bottom supporting bearing bush 8 and the gland bearing bush 9 are tightly pressed.

Further, as shown in fig. 1 to 7, the top plate 33 of the bracket support 3 is provided with a bearing bracket adjusting rod mounting hole and a bearing bracket guide rod mounting hole; the first bearing bush support 6 is provided with a bearing bush support adjusting rod mounting hole, a bearing bush support guide rod mounting hole and a boring bar gland fixing hole; the top of the bearing bush support adjusting rod 4 is arranged on the first bearing bush support 6, and the bottom of the bearing bush support adjusting rod penetrates through the top plate of the bracket support 3 to extend downwards; the bracket support 3 is connected with the first bearing bush support 6 through 4 bearing bush support guide rods 7; the two ends of the bearing bush support guide rod 7 are respectively fixed on the top plate 33 of the bracket support 3 and the first bearing bush support 6 through hexagonal nuts and spring washers.

Further, as shown in fig. 1-7, the bottom of the first bearing bush support 6 is a plane, and the top is a semicircular notch with a concave downward direction; an arc-shaped clamping protrusion 61 is arranged on the upper surface of the semicircular notch; the first bottom supporting bearing bush 8 is a semi-arc block, the bottom of the first bottom supporting bearing bush 8 is provided with an arc clamping groove matched with the arc clamping convex 61 on the upper surface of the first bearing bush bracket 6, and the top of the first bottom supporting bearing bush is matched with the outer surface radian of the boring bar 13; the first bottom supporting bearing bush 8 and the arc-shaped clamping convex 61 on the first bearing bush support 6 are fixed through hexagon socket head cap screws and spring washers.

Further, as shown in fig. 1-7, the gland bush 9 is a semi-arc block adapted to the outer surface radian of the boring bar 13; the boring bar gland 10 comprises a semi-arc-shaped pressing block 101 with the same radian as the outer surface of the gland bush 9 and fixing lugs 102 arranged at two ends of the semi-arc-shaped pressing block 101; the outer cambered surface of the gland bush 9 is provided with a groove with the radian consistent with that of the groove; the semi-arc pressing block 101 is partially inlaid in the groove; the fixing lug 102 is arranged on the first bearing bush support 6; the fixing lug 102 is provided with a fixing hole which is fixed with the first bearing bush bracket 6; the gland bush 9 is fixed with the boring bar gland 10 through a hexagon socket head cap screw and a spring washer; the two ends of the boring bar gland 10 are fixed on the first bearing bush bracket 6 by using hexagon socket head cap screws and spring washers.

Further, as shown in fig. 1 to 7, the second boring bar fixing assembly includes a second bearing bush support 11 disposed at the top of the bearing bush support adjusting rod 4, a bearing bush support guide rod 7 disposed between the bracket support 3 and the second bearing bush support 11, and a second bottom support bearing bush 12 disposed on the upper surface of the second bearing bush support 11; the second bearing bush support 11 has the same structure as the first bearing bush support 6; the bracket support 3 is connected with a second bearing bush support 11 through 2 bearing bush support guide rods 7; two ends of the bearing bush support guide rod 7 are fixed on the bracket support 3 and the second bearing bush support 11 through hexagonal nuts and spring washers; the second bottom support shell 12 is identical in construction to the first bottom support shell 8; the second bottom support bearing bush 12 is arranged on the second bearing bush bracket 11 through a hexagon socket head cap screw and a spring washer; the top of the bearing bush support adjusting rod 4 is mounted on the second bearing bush support 11 by using a hexagon socket head cap screw and a spring washer, and the bottom of the bearing bush support adjusting rod penetrates through the top plate 33 of the bracket support 3 to extend downwards; the adjusting nut 5 is screwed on the bearing bush support adjusting rod 4 and is supported on the top plate of the bracket support 3; according to the utility model, the boring bar 13 is positioned through the first bottom support bearing bush 8 and the gland bearing bush 9 on the first boring bar fixing assembly and the second bottom support bearing bush 12 on the second boring bar fixing assembly, so that the jumping of the lengthened boring bar is effectively reduced during boring, the cutter vibration phenomenon in the processing process is effectively reduced, and the size and tolerance precision of the shaft hole are ensured.

Further, as shown in fig. 1, 8 and 9, the boring bar 13 includes a first bar body 131 and a second bar body 132 that are integrally formed, and a hole processing tool mounting position 133 that is disposed at a connection portion between the first bar body 131 and the second bar body 132; the longitudinal central axes of the first rod body 131 and the second rod body 132 are on the same straight line; the diameter of the outer circle of the first rod body 131 is smaller than that of the outer circle of the second rod body 132; the first bottom supporting bearing bush 8, the inner surface of the gland bearing bush 9 and the outer circle of the first rod body 131 are matched in size; the inner surface of the second bottom support shell 12 is sized to match the outer circumference of the second rod 132; the hole machining tool is fixed on the hole machining tool mounting position 133 through a screw 134; the screw 134 is preferably a hexagon socket head cap screw; the boring bar 13 is a replaceable piece, and when the long shaft holes of the sliding blocks of different types are machined, the boring bar with the corresponding length is used according to the corresponding shaft hole size, so that the boring bar is convenient and quick to replace, and further the long shaft hole machining tool for the sliding blocks can be used in machining scenes of the long shaft holes of various sizes, and is simple and convenient to use.

The utility model provides a working principle of a boring device for processing a long shaft hole of a sliding block, which comprises the following steps: when the boring bar 13 is in operation, the boring bar 13 passes through a long shaft hole on the sliding block 100, one end of the boring bar passes through a hole formed by the first bottom support bearing bush 8 and the gland bearing bush 9, and the other end of the boring bar passes through the second bottom support bearing bush 12, so that the boring bar 13 is placed on a sliding block long shaft hole processing tool; when the boring machine is used, according to the shaft hole height of the long shaft hole of the sliding block, cushion blocks 2 with corresponding heights are respectively placed under bracket supports 3 of the first bracket support assembly and the second bracket support assembly, a boring bar 13 is placed in a processing tool of the long shaft hole of the sliding block, then a fixed inner hexagonal socket head cap screw of a boring bar gland 10 is tightened, the heights of a first bearing bush support 6 and a second bearing bush support 11 are finely adjusted by adjusting the heights of adjusting nuts 5 on a first height adjusting unit and a second height adjusting unit, so that the axis of the boring bar 13 is aligned with the axis of the long shaft hole to be processed of the sliding block 100, then hexagonal nuts at two ends of a guide rod of the bearing bush support are tightened, accurate positioning of the boring bar 13 is realized, the cutter vibration phenomenon in the processing process of the long shaft hole of the sliding block is effectively reduced, and the processing size and tolerance precision of the shaft hole of the sliding block are improved.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A bore hole device for processing of sliding block long shaft hole, its characterized in that: the boring machine comprises a first bracket supporting component and a second bracket supporting component which are arranged at the bottom of a sliding block (100), a first height adjusting unit arranged on the first bracket supporting component, a second height adjusting unit arranged on the second bracket supporting component, a first boring bar fixing component arranged on the first height adjusting unit, and a second boring bar fixing component arranged on the second height adjusting unit; the first bracket supporting component and the second bracket supporting component are arranged at intervals in parallel along the central axis direction of the long shaft hole on the sliding block (100); the boring bar (13) passes through a long shaft hole on the sliding block (100), one end of the boring bar (13) is fixed through a first boring bar fixing component, and the other end of the boring bar is fixed through a second boring bar fixing component.

2. The boring device for processing a long shaft hole of a slider according to claim 1, wherein: the first bracket support assembly and the second bracket support assembly are identical in structure and comprise a support base (1), a cushion block (2) arranged at the top of the support base (1) and a bracket support (3) arranged at the top of the cushion block (2).

3. A boring device for use in the machining of long shaft bores of sliders as claimed in claim 2, wherein: the first height adjusting unit and the second height adjusting unit have the same structure and comprise a bearing bush support adjusting rod (4) arranged at the center of the top of the bracket support (3) and an adjusting nut (5) arranged on the bearing bush support adjusting rod (4);

the adjusting nut (5) is screwed on the bearing bush support adjusting rod (4) and is supported on the top plate of the bracket support (3).

4. A boring device for use in the machining of a long shaft bore of a slider as claimed in claim 3, wherein: the first boring bar fixing assembly comprises a first bearing bush support (6) arranged at the top of the bearing bush support adjusting rod (4), a first bottom supporting bearing bush (8) arranged on the upper surface of the first bearing bush support (6), a gland bush (9) arranged at the top of the first bottom supporting bearing bush (8) and a boring bar gland (10) arranged at the top of the gland bush (9);

the first bottom supporting bearing bush (8) and the gland bearing bush (9) are oppositely arranged, and a hole for a boring bar (13) to pass through is formed in the middle;

the second boring bar fixing assembly comprises a second bearing bush support (11) arranged at the top of the bearing bush support adjusting rod (4) and a second bottom supporting bearing bush (12) arranged on the upper surface of the second bearing bush support (11).

5. The boring device for processing a long shaft hole of a slider according to claim 4, wherein: the bottom of the first bearing bush support (6) is a plane, and the top of the first bearing bush support is a semicircular notch which is concave downwards; an arc-shaped clamping convex (61) is arranged on the upper surface of the semicircular notch;

the second bearing bush support (11) has the same structure as the first bearing bush support (6).

6. The boring device for processing a long shaft hole of a slider according to claim 5, wherein: the first bottom supporting bearing bush (8) is a semi-arc block, an arc clamping groove matched with an arc clamping protrusion (61) on the upper surface of the first bearing bush support (6) is formed in the bottom of the first bottom supporting bearing bush, and the top of the first bottom supporting bearing bush is matched with the outer surface radian of the boring bar (13);

the first bottom supporting bearing bush (8) is fixed with an arc-shaped clamping convex (61) on the first bearing bush support (6);

the second bottom support bearing bush (12) and the first bottom support bearing bush (8) are identical in structure.

7. The boring device for processing a long shaft hole of a slider according to claim 6, wherein: the first boring bar fixing assembly further comprises a bearing bush bracket guide rod (7) arranged between the bracket support (3) and the first bearing bush bracket (6);

the second boring bar fixing assembly further comprises a second bearing bush support guide rod (7) arranged between the bracket support (3) and the second bearing bush support (11).

8. The boring device for processing a long shaft hole of a slider according to claim 7, wherein: the gland bush (9) is a semi-arc block which is matched with the outer surface radian of the boring bar (13);

the boring bar gland (10) comprises a semi-arc-shaped pressing block (101) consistent with the outer surface radian of the gland bush (9) and fixing lugs (102) arranged at two ends of the semi-arc-shaped pressing block (101);

the outer cambered surface of the gland bush (9) is provided with a groove with the radian consistent with that of the groove; the semi-arc pressing block (101) is partially inlaid in the groove; the gland bush (9) is fixed with the boring bar gland (10).

9. The boring device for processing a long shaft hole of a slider according to claim 8, wherein: the fixing lug (102) is fixed on the first bearing bush support (6).

10. The boring device for processing a long shaft hole of a slider according to claim 9, wherein: the boring bar (13) comprises a first bar body (131) and a second bar body (132) which are manufactured in an integral mode, and a hole machining tool mounting position (133) which is arranged at the joint of the first bar body (131) and the second bar body (132);

the cushion block (2) and the boring bar (13) are replaceable pieces, and the sizes of the cushion block (2) and the boring bar (13) are determined according to the sizes of long holes on the sliding block (100).