A device for machining holes in the inner wall of a cavity

Abstract

The utility model provides a device of processing cavity inner wall hole belongs to workpiece cavity inner wall drilling technical field, including clamping crossbeam and setting in its far away from the clamping department one end downside's vertical roof, the lower end of vertical roof rotatory connection has telescopic spare, vertical roof is close to clamping crossbeam clamping department's one side lower extreme and is equipped with the fixed crossbeam, the inside lower extreme between telescopic spare and the outside end of fixed crossbeam rotatory connection has metal universal flexible axle, the lower extreme of telescopic spare is installed right angle corner ware, the input of right angle corner ware is fixedly connected with the lower side connecting end of metal universal flexible axle through six party adapter, and the output head department of right angle corner ware is installed drill chuck, and the lower extreme of drill chuck is installed tool. The utility model passes through the synergetic effect of structure, has solved the problem that small and medium workpiece cavity inner wall is difficult to process hole in practical work, has broken the restriction that bench drill cannot accurately process cavity inner wall hole.

Description

Technical Field

[0001] This utility model belongs to the field of drilling technology for the inner wall of a workpiece cavity, and specifically relates to a device for machining holes in the inner wall of a cavity. Background Technology

[0002] In the field of machining, drilling operations on workpieces can generally be divided into two process scenarios: conventional external drilling and internal wall drilling. Traditional processing methods mainly rely on two technical paths: For external drilling operations, although standardized processing can be achieved through bench drills, whose mechanical positioning systems can ensure basic processing accuracy, when facing drilling requirements inside cavities, existing processes generally rely on manual operation of handheld electric drills for positioning and processing. This processing method itself has problems such as inaccurate positioning and poor accuracy. Utility Model Content

[0003] In view of this, the present invention provides a device for machining holes in the inner wall of a cavity. Through the synergistic effect of the structure, it solves the problem of difficult machining holes in the inner wall of small and medium-sized workpiece cavities in actual work, breaks the limitation of bench drills being unable to accurately machine holes in the inner wall of cavities, abandons the traditional manual machining method, and ensures machining accuracy and efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides a device for machining holes in the inner wall of a cavity, including a clamping crossbeam and a vertical beam disposed on the lower side of the end away from the clamping part. The lower end of the vertical beam is rotatably connected to a telescopic component. A fixed crossbeam is provided on the lower side of the vertical beam near the clamping part of the clamping crossbeam. A metal universal joint is rotatably connected between the lower inner end of the telescopic component and the outer end of the fixed crossbeam. A right-angle bend is installed at the lower end of the telescopic component. The lower connecting end of the metal universal joint is fixedly connected to the input end of the right-angle bend through a hexagonal adapter. A drill chuck is installed at the output head of the right-angle bend. A cutting tool is installed at the lower end of the drill chuck. An adjustment component for adjusting the tilt angle of the telescopic component is provided at the lower end of the vertical beam. That is, through the synergistic effect of the structure, the problem of difficult machining holes in the inner wall of small and medium-sized workpiece cavities in actual work is solved, breaking the limitation of bench drills being unable to accurately machine holes in the inner wall of cavities, abandoning the traditional manual machining method, and ensuring machining accuracy and efficiency. The telescopic component includes a rotating plate and a telescopic plate. The rotating plate is rotatably connected to the lower end of the vertical beam, and the telescopic plate is slidably connected to the lower end of the rotating plate. The lower inner side of the telescopic plate is rotatably connected to the lower end of the metal universal flexible shaft. A drive assembly is provided between the inner sides of the rotating plate and the telescopic plate, which serves the purpose of adjustment.

[0005] The adjustment assembly includes a worm gear ring located at one end of the rotating plate. Symmetrically distributed fixing blocks are provided on the lower side of the vertical beam near the worm gear ring. A worm is rotatably connected between the two fixing blocks. The worm meshes with the worm gear ring, which can achieve both rapid adjustment and self-locking.

[0006] The drive assembly includes a fixed cylinder located on the inner side of the telescopic plate, and a mounting block located on the inner side of the rotating plate. A lead screw is rotatably connected to a rotating hole in the center of the mounting block. The lead screw is threadedly connected to the fixed cylinder, thus achieving the function of rapid drive.

[0007] The drive assembly also includes a locking bolt threaded to the upper end of the outer arc surface of the fixed cylinder. The locking bolt moves in contact with the lead screw, thus quickly locking the lead screw.

[0008] The drive assembly also includes a top block rotatably connected to the inner end of the locking bolt. The inner arc surface of the fixed cylinder is provided with a receiving groove that matches the top block. The top block abuts against the outer arc surface of the lead screw, thereby increasing the contact area with the lead screw and preventing damage to it.

[0009] The lower end of the vertical beam is equipped with a protective cover. The worm gear ring, the fixing block and the worm are all located inside the protective cover. Both sides of the protective cover are provided with installation openings that are compatible with the fixing block, which serves as a safety protection function.

[0010] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: 1. The entire device is fixed to the spindle of a vertical drilling machine by a clamping beam, and the spindle body of the vertical drilling machine is connected to a metal universal flexible shaft. The power provided by the vertical drilling machine spindle is transmitted through the metal universal flexible shaft, and then through a hexagonal adapter and a right-angle bend, and finally the drill chuck drives the tool to rotate, thereby realizing the machining of holes on the inner wall of the cavity. Through the synergistic effect of the above structure, the problem of difficult machining of holes on the inner wall of small and medium-sized workpiece cavities in actual work is solved. It breaks the limitation of bench drills being unable to accurately machine holes on the inner wall of cavities, abandons the traditional manual machining method, and ensures machining accuracy and efficiency.

[0011] 2. Depending on the machining position of the workpiece cavity, the operator can adjust the tilt angle of the telescopic component through the meshing transmission of the worm and worm wheel ring, so that the tool can adapt to the machining requirements of different angles of the inner wall of the cavity.

[0012] 3. The threaded engagement between the lead screw and the fixed cylinder drives the telescopic plate to slide, which can adjust the length of the telescopic component and thus control the machining depth of the tool.

[0013] 4. Tighten the locking bolts to make the top block and the outer arc surface of the lead screw come into tight contact, thereby locking the lead screw to prevent it from loosening and ensuring stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a device for processing holes in the inner wall of a cavity according to the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of point A in this utility model; Figure 4 This is a partial planar structural schematic diagram of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 100, clamping crossbeam; 101, vertical beam; 102, telescopic component; 103, fixed crossbeam; 104, metal universal flexible shaft; 105, right-angle bend; 106, drill chuck; 107, cutting tool; 200, worm gear ring; 201, fixing block; 202, worm; 300, fixing cylinder; 301, mounting block; 302, lead screw; 303, locking bolt; 304, top block; 400, protective cover. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figures 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0017] This embodiment provides a device for machining holes in the inner wall of a cavity, such as... Figures 1-4The structure includes a clamping crossbeam 100 and a vertical beam 101 located on the lower side of the end away from the clamping part. A telescopic member 102 is rotatably connected to the lower end of the vertical beam 101. A fixed crossbeam 103 is located on the lower side of the vertical beam 101 near the clamping part of the clamping crossbeam 100. A metal universal joint 104 is rotatably connected between the lower inner end of the telescopic member 102 and the outer end of the fixed crossbeam 103. A right-angle bend 105 is installed at the lower end of the telescopic member 102. The lower connecting end of the metal universal joint 104 is fixedly connected to the input end of the right-angle bend 105 via a hexagonal adapter. A drill chuck 106 is installed at the output head of the right-angle bender 105. A cutting tool 107 is installed at the lower end of the drill chuck 106. An adjustment assembly for adjusting the tilt angle of the telescopic component 102 is provided at the lower end of the vertical beam 101. The telescopic component 102 includes a rotating plate and a telescopic plate. The rotating plate is rotatably connected to the lower end of the vertical beam 101, and the telescopic plate is slidably connected to the lower end of the rotating plate. The lower inner side of the telescopic plate is rotatably connected to the lower end of the metal universal flexible shaft 104. A drive assembly is provided between the inner sides of the rotating plate and the telescopic plate to clamp the horizontal beam 100, the vertical beam 101, and the telescopic component 102. The fixed crossbeam 103 is made of 40Cr alloy structural steel and has undergone quenching and tempering treatment. The drill chuck 106, the metal universal flexible shaft 104, and the cutting tool 107 are all standard parts. The right-angle bend 105 is made of S2 tool steel. The hexagonal adapter is made of 40Cr. The adjustment assembly includes a worm gear ring 200 set at one end of the rotating plate. The lower side of the vertical beam 101 near the worm gear ring 200 is provided with symmetrically distributed fixing blocks 201. A worm 202 is rotatably connected between the two fixing blocks 201. The worm 202 is meshed with the worm gear ring 200.

[0018] The entire device is fixed to the spindle of a vertical drilling machine by clamping beam 100, and the spindle body of the vertical drilling machine is connected to the metal universal flexible shaft 104. The power provided by the vertical drilling machine spindle is transmitted through the metal universal flexible shaft 104, through a hexagonal adapter and a right-angle bend 105, and then driven by the drill chuck 106 to rotate the tool 107, thereby realizing the hole machining on the inner wall of the cavity. Before machining, according to the machining position of the workpiece cavity, the operator can adjust the tilt angle of the telescopic component 102 through the meshing transmission of the worm gear 202 and the worm wheel ring 200, so that the tool 107 can adapt to the machining requirements of different angles on the inner wall of the cavity. At the same time, the drive component can adjust the length of the telescopic component 102, thereby controlling the machining depth of the tool 107. Through the synergistic effect of the above structures, the tool 107 is accurately positioned and efficiently operated when machining holes on the inner wall of the cavity, eliminating the traditional manual machining method and ensuring machining accuracy and efficiency.

[0019] like Figures 2-4As shown, the drive assembly includes a fixed cylinder 300 disposed on the inner side of the telescopic plate, and a mounting block 301 disposed on the inner side of the rotating plate. A lead screw 302 is rotatably connected in a rotating hole disposed in the middle of the mounting block 301. The lead screw 302 is threadedly connected to the fixed cylinder 300. The drive assembly also includes a locking bolt 303 threadedly connected to the upper end of the outer arc surface of the fixed cylinder 300. The locking bolt 303 and the lead screw 302 are in movable contact. The drive assembly also includes a top block 304 rotatably connected to the inner end of the locking bolt 303. The inner arc surface of the fixed cylinder 300 is provided with a receiving groove adapted to the top block 304. The top block 304 and the outer arc surface of the lead screw 302 are in contact. The threaded engagement between the lead screw 302 and the fixed cylinder 300 drives the telescopic plate to slide, thereby adjusting the length of the telescopic component 102 and controlling the machining depth of the tool 107.

[0020] like Figure 1 As shown, a protective cover 400 is installed at the lower end of the vertical beam 101. The worm gear ring 200, the fixing block 201 and the worm 202 are all located inside the protective cover 400. Both sides of the protective cover 400 are provided with installation openings that are compatible with the fixing block 201. The protective cover 400 plays a role in protecting the internal structure.

[0021] The working principle of the device for machining holes in the inner wall of a cavity provided by this utility model is as follows: The device is fixed to the spindle of a vertical drilling machine by a clamping beam 100, and the spindle body of the vertical drilling machine is connected to a metal universal joint 104. The power provided by the vertical drilling machine spindle is transmitted through the metal universal joint 104, through a hexagonal adapter and a right-angle bend 105, and then the drill chuck 106 drives the tool 107 to rotate, thereby machining the hole in the inner wall of the cavity. Before machining, according to the machining position of the workpiece cavity, the operator can adjust the tilt angle of the telescopic member 102 through the meshing transmission of the worm gear 202 and the worm wheel ring 200, so that the tool 107 can be adapted to the machining position. To meet the machining requirements of different angles on the inner wall of the cavity, the threaded engagement between the lead screw 302 and the fixed cylinder 300 drives the sliding plate to adjust the length of the telescopic component 102, thereby controlling the machining depth of the tool 107. After adjustment, tighten the locking bolt 303 so that the top block 304 and the outer arc surface of the lead screw 302 are in tight contact, thereby locking the lead screw 302 and preventing it from loosening. Through the synergistic effect of the above structure, the problem of difficult machining holes on the inner wall of the cavity of small and medium-sized workpieces in actual work is solved. It breaks the limitation that bench drills cannot accurately machine holes on the inner wall of the cavity, abandons the traditional manual machining method, and ensures machining accuracy and efficiency.

[0022] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An apparatus for machining holes in the inner wall of a cavity, characterized in that: The device includes a clamping crossbeam (100) and a vertical beam (101) located on the lower side of the end away from the clamping part. A telescopic member (102) is rotatably connected to the lower end of the vertical beam (101). A fixed crossbeam (103) is provided on the lower side of the vertical beam (101) near the clamping part of the clamping crossbeam (100). A metal universal joint (104) is rotatably connected between the lower inner end of the telescopic member (102) and the outer end of the fixed crossbeam (103). A right-angle bend (105) is installed at the lower end of (102). The lower connecting end of the metal universal flexible shaft (104) is fixedly connected to the input end of the right-angle bend (105) through a hexagonal adapter. A drill chuck (106) is installed at the output head of the right-angle bend (105). A cutting tool (107) is installed at the lower end of the drill chuck (106). An adjustment component for adjusting the tilt angle of the telescopic component (102) is provided at the lower end of the vertical beam (101).

2. The apparatus for processing holes in the inner wall of a cavity as described in claim 1, characterized in that: The telescopic component (102) includes a rotating plate and a telescopic plate. The rotating plate is rotatably connected to the lower end of the vertical beam (101). The lower end of the rotating plate is slidably connected to the telescopic plate. The lower inner end of the telescopic plate is rotatably connected to the lower end of the metal universal flexible shaft (104). A drive assembly is provided between the inner sides of the rotating plate and the telescopic plate.

3. The apparatus for processing holes in the inner wall of a cavity as described in claim 1, characterized in that: The adjustment assembly includes a worm gear ring (200) disposed at one end of the rotating plate. The lower side of the vertical beam (101) near the worm gear ring (200) is provided with symmetrically distributed fixing blocks (201). A worm (202) is rotatably connected between the two fixing blocks (201), and the worm (202) meshes with the worm gear ring (200).

4. The apparatus for processing holes in the inner wall of a cavity as described in claim 2, characterized in that: The drive assembly includes a fixed cylinder (300) disposed on the inner side of the telescopic plate, and an mounting block (301) disposed on the inner side of the rotating plate. A lead screw (302) is rotatably connected in the rotating hole disposed in the middle of the mounting block (301), and the lead screw (302) is threadedly connected to the fixed cylinder (300).

5. The apparatus for processing holes in the inner wall of a cavity as described in claim 4, characterized in that: The drive assembly also includes a locking bolt (303) threaded to the upper end of the outer arc surface of the fixed cylinder (300), the locking bolt (303) being in contact with the lead screw (302).

6. The apparatus for processing holes in the inner wall of a cavity as described in claim 5, characterized in that: The drive assembly also includes a top block (304) rotatably connected to the inner end of the locking bolt (303). The inner arc surface of the fixed cylinder (300) is provided with a receiving groove that matches the top block (304). The top block (304) abuts against the outer arc surface of the lead screw (302).

7. The apparatus for processing holes in the inner wall of a cavity as described in claim 3, characterized in that: The lower end of the vertical beam (101) is equipped with a protective cover (400). The worm gear ring (200), the fixing block (201) and the worm (202) are all located inside the protective cover (400). The protective cover (400) has installation openings on both sides that are compatible with the fixing block (201).

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