Deep hole machining device

Abstract

The utility model discloses a deep hole machining device, relates to the technical field of machining, and aims to provide a deep hole machining device which can better adapt to deep hole machining of long-size workpieces and improve machining stability. The deep hole machining device comprises a working table and a drilling mechanism, a drilling machine base and a chuck machine base are arranged on the working table, and the drilling mechanism is fixed to the drilling machine base; the drilling machine has the advantages that the mode that one half of the depth of a hole is drilled from one end of a workpiece, and then the other half of the depth of the hole is drilled from the other end of the workpiece is adopted, the deep distance of a long-rod drill bit is shortened, the service life of the drill bit is prolonged, and the drilling machine is simple in structure, convenient to use and high in practicability. The device is suitable for more long workpieces; the clamping mechanism is arranged on the rotating disc, a clamped workpiece can rotate front and back, the rotating disc in the rotating mechanism stably rotates by 180 degrees due to limitation of the clamping groove and the clamping block, a front hole and a rear hole are kept horizontal, and the deep hole drilling precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, and more specifically, to a deep hole processing device. Background Art

[0002] Deep hole processing is an important part of mechanical manufacturing technology. It refers to a hole with a length-to-diameter ratio greater than 6. It was first used in the production of military equipment, such as gun barrels and cannon barrels. With the continuous development of economy and technology, deep hole processing technology has gradually turned to civilian use and is mainly used in energy mining, automobile manufacturing, machine tool manufacturing, aerospace and other industries.

[0003] At present, a Chinese patent with application number CN201920500689.2 discloses a deep hole processing machine tool, which includes a mounting base, a deep hole processing mechanism, a fixture and a placement box assembly. The deep hole processing mechanism moves and the spindle rotates to perform deep hole processing on the workpiece. However, when drilling deep holes, the drill bit used is relatively long, and the drill bit is prone to deformation and shaking during operation. In addition, the long-rod drill bit penetrates deep holes for processing, and drilling debris is not easy to clear out, thereby affecting the working efficiency of the drill bit. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a deep hole processing device that can better adapt to deep hole processing of long-sized workpieces, improve processing stability and extend the service life of a long-shank drill bit.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The working table is provided with a drilling machine base and a chuck machine base, the drilling mechanism is fixed on the drilling machine base, the chuck machine base is fixed on the working table, a three-jaw chuck is fixed on one side of the chuck machine base, and a sliding cavity is opened on the working table, the bottom end of the drilling machine base is placed in the sliding cavity, and a cylinder is fixed at one end of the sliding cavity, and the output end of the cylinder is fixedly connected to the drilling machine base, the sliding cavity is provided with a sliding seat and a guide rod, the sliding seat is slidably connected to the sliding cavity, the guide rod is fixed to the sliding cavity, and a through hole slidably connected to the guide rod is provided on the sliding seat, and the sliding seat is provided with a turntable mechanism, the turntable mechanism comprises a rotating shaft, a connecting plate and a rotating plate, the connecting plate is fixed on the sliding seat, and the connecting plate and the rotating plate are both provided with movable grooves for the rotating shaft to pass through, the rotating shaft passes through the movable grooves on the connecting plate and the rotating plate respectively, and protrusions are fixed at both ends of the rotating shaft, the rotating plate is rotatably connected to the top end of the rotating shaft, the connecting plate is provided with a card slot, and a card block adapted to the card slot is fixed at the bottom of the rotating plate.

[0007] It is further configured that a clamping mechanism is provided on the rotating disk, the clamping mechanism includes a screw, a sliding rod, two arc-shaped limit plates and two sliders, a sliding groove is opened on the rotating disk, the two sliders are placed in the sliding groove, the two sliders are slidably connected to the sliding groove, the two arc-shaped limit plates are respectively fixedly connected to the two sliders, and the arc centers of the two arc-shaped limit plates are opposite, the two sliders are provided with threaded holes and openings, the sliding rod passes through the openings of the two sliders and is slidably connected to the openings, the screw is provided with a left threaded section and a right threaded section, the threads of the left threaded section and the right threaded section are opposite, the left threaded section passes through the threaded hole of one slider and is threadedly connected to the threaded hole, and the right threaded section passes through the threaded hole of the other slider and is threadedly connected to the threaded hole.

[0008] It is further configured that the drilling mechanism includes a driving motor and a long-rod drill bit, a mounting groove is provided on the drilling machine base, the driving motor is fixedly connected to the mounting groove, and one end of the long-rod drill bit is fixedly connected to the output end of the driving motor.

[0009] It is further configured that the sliding seat is provided with a space for accommodating the bottom end of the rotating shaft and the protrusion.

[0010] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: by clamping one end of the workpiece in the three-jaw chuck and then locking the middle of the workpiece through two arc-shaped limit plates, the workpiece is clamped stably; by drilling half of the hole depth from one end of the workpiece and then drilling the other half of the hole depth from the other end, the penetration distance of the long-rod drill bit is reduced, the service life of the long-rod drill bit is increased, and it is suitable for more workpieces with longer lengths; by arranging the clamping mechanism on a turntable, the clamped workpiece can be rotated back and forth, and the rotating disk in the rotating mechanism can stably rotate 180 degrees due to the limitation of the slot and the block, so that the front hole and the rear hole remain level, thereby ensuring the accuracy of deep hole drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0012] Figure 2 It is a schematic diagram of the side section structure of the sliding seat according to an embodiment of the utility model.

[0013] Figure 3 It is a structural schematic diagram of the turntable mechanism of an embodiment of the utility model.

[0014] Figure 4 It is a schematic cross-sectional structure diagram of the turntable mechanism of the embodiment of the utility model.

[0015] Figure numerals: 1 workbench, 2 drilling machine base, 21 mounting groove, 3 chuck base, 31 three-jaw chuck, 4 sliding chamber, 5 sliding seat, 6 guide rod, 7 cylinder, 8 connecting plate, 81 slot, 9 rotating plate, 91 block, 92 slide groove, 10 rotating shaft, 101 bump, 11 screw, 111 left thread segment, 112 right thread segment, 12 slide rod, 13 arc-shaped limit plate, 14 slider, 15 drive motor, 16 long rod drill bit, 17 movable groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Reference Figures 1 to 4 The utility model is further described in detail.

[0018] A deep hole processing device comprises a workbench 1 and a drilling mechanism. A drilling machine base 2 and a chuck machine base 3 are provided on the workbench 1. The drilling mechanism is fixed on the drilling machine base 3. The drilling mechanism comprises a driving motor 15 and a long-shank drill bit 16. A mounting groove 21 is provided on the drilling machine base. The driving motor 15 is placed in the mounting groove 21 and is fixedly connected to the mounting groove 21. The long-shank drill bit 16 is fixedly connected to the output end of the driving motor 15. The chuck machine base 3 is fixed on the workbench 1. A three-jaw chuck 31 for clamping a workpiece is fixed on one side of the chuck machine base 3.

[0019] A sliding cavity 4 is opened on the workbench 1, and the bottom end of the drilling machine base 2 is placed in the sliding cavity 4. A cylinder 7 is fixed at one end of the sliding cavity 4, and the output end of the cylinder 7 is fixedly connected to one side of the bottom end of the drilling machine base 2. A sliding seat 5 and a guide rod are provided in the sliding cavity 4. The sliding seat 5 is slidably connected to the sliding cavity 4, and the guide rod 6 is fixed in the sliding cavity 4. A through hole is provided on the sliding seat 5 that is slidably connected to the guide rod 6. The sliding seat 5 slides through the guide rod 6 and can move smoothly in the sliding cavity 4.

[0020] The sliding seat 5 is provided with a turntable mechanism, which includes a connecting plate 8, a rotating plate 9 and a rotating shaft 10. The connecting plate 8 is fixed to the sliding seat 5. Both the connecting plate 8 and the rotating plate 9 are provided with movable grooves. The rotating shaft 10 passes through the movable grooves of the connecting plate 8 and the rotating plate 9. Both ends of the rotating shaft are fixed with protrusions 101 to prevent falling off. The size of the protrusion 101 is larger than the diameter of the movable groove. The sliding seat 5 is provided with a space for the bottom end of the rotating shaft 10 and the protrusion 101. The rotating plate 9 is rotatably connected to the top of the rotating shaft 10 and the protrusion 101. The connecting plate 8 is provided with a clamping groove 81. A clamping block 91 is fixed at the bottom of the rotating plate 9. The clamping groove 81 and the clamping block 10 are rectangular matching each other. The rotating plate 9 can be rotated on the connecting plate 8 by the rotating shaft 10, and due to the restriction of the clamping block 81 and the clamping groove 91, it can be rotated 180 degrees before it can be clamped and fixed again, so that the front hole of the workpiece can be stably turned over after processing, ensuring that the rear hole of the workpiece is on the same horizontal line as the front hole.

[0021] The clamping mechanism is fixed on the rotating disk 9, and the clamping mechanism includes a screw rod 11, a slide rod 12, two arc-shaped limit plates 13 and two sliders 14. The two sliders 14 are both placed in the slide groove 92, and the sliders 14 are slidably connected to the slide groove 92. The two arc-shaped limit plates 13 are respectively fixed on the two sliders 14, and the arc centers of the two arc-shaped limit plates 13 are opposite. The screw rod 11 is provided with a left thread segment 111 and a right thread segment 112. The left thread segment 111 and the right thread segment 112 have opposite threads. The two sliders 14 are provided with threaded holes and openings. The threaded holes of the two sliders 14 are respectively arranged on the left threaded section and the right threaded section, the slide rod 12 passes through the openings of the two sliders 14 and is slidably connected with the openings, the left threaded section 111 passes through the threaded hole of one slider 14 and is threadedly connected with the threaded hole, the right threaded section 112 passes through the threaded hole of the other slider 14 and is threadedly connected with the threaded hole, rotating the screw rod 11 can make the two sliders 14 move relative to each other along the guide rod 6, and the arc-shaped limit plates 13 respectively fixed on the two sliders 14 also move relative to each other to lock the workpiece placed therein.

[0022] The working principle of the utility model is as follows: the workpiece to be processed is placed on the clamping mechanism, one end of the workpiece is inserted into the three-jaw chuck 31 on the left side for clamping, the screw rod 11 is rotated to make the two arc-shaped limit plates 13 in the clamping mechanism move closer to each other until the workpiece is locked between the two arc-shaped limit plates 13; the long-rod drill bit 16 is aligned with the deep hole processing part of the workpiece, the cylinder 7 is started, so that the output end of the cylinder 7 drives the drilling machine base 2 to move toward the workpiece, and the driving motor 15 is started at the same time, and the long-rod drill bit 16 rotates rapidly to drill into the deep hole processing part of the workpiece, and the driving motor 15 is stopped after the deep hole of the workpiece is drilled more than half. The machine 15 is moved back to the left to make the other end of the workpiece be engaged with the three-jaw chuck 31, and the driving motor 15 and the cylinder 7 are started again to complete the processing of the other half of the deep hole of the workpiece. There is no need to disassemble the workpiece and reinstall it, so as to avoid the deviation of the drilling hole and affect the accuracy of the deep hole processing.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A deep hole processing device, comprising a workbench and a drilling mechanism, characterized in that: The workbench is provided with a drilling machine base and a chuck machine base, the drilling mechanism is fixed on the drilling machine base, the chuck machine base is fixed on the workbench, and a three-jaw chuck is fixed on one side of the chuck machine base. The workbench is provided with a sliding cavity, the bottom end of the drilling machine base is placed in the sliding cavity, a cylinder is fixed at one end of the sliding cavity, the output end of the cylinder is fixedly connected to the drilling machine base, a sliding seat and a guide rod are provided in the sliding cavity, the sliding seat is slidably connected to the sliding cavity, the guide rod is fixed in the sliding cavity, and a through hole is provided on the sliding seat that is slidably connected to the guide rod. The sliding seat is provided with a turntable mechanism, which includes a rotating shaft, a connecting plate and a rotating plate. The connecting plate is fixed on the sliding seat. Both the connecting plate and the rotating plate are provided with movable grooves for the rotating shaft to pass through. The rotating shaft passes through the movable grooves on the connecting plate and the rotating plate respectively, and protrusions are fixed at both ends of the rotating shaft. The rotating plate is rotatably connected to the top end of the rotating shaft. The connecting plate is provided with a clamping groove, and a clamping block adapted to the clamping groove is fixed to the bottom of the rotating plate.

2. A deep hole processing device according to claim 1, characterized in that: The rotating disk is provided with a clamping mechanism, which includes a screw, a sliding rod, two arc-shaped limit plates and two sliders. A sliding groove is opened on the rotating disk, and the two sliders are placed in the sliding groove. The two sliders are slidably connected to the sliding groove. The two arc-shaped limit plates are respectively fixedly connected to the two sliders, and the arc centers of the two arc-shaped limit plates are opposite. Threaded holes and openings are provided on the two sliders. The sliding rod passes through the openings of the two sliders and is slidably connected to the openings. A left threaded section and a right threaded section are provided on the screw. The threads of the left threaded section and the right threaded section are opposite. The left threaded section passes through the threaded hole of one slider and is threadedly connected to the threaded hole, and the right threaded section passes through the threaded hole of the other slider and is threadedly connected to the threaded hole.

3. A deep hole processing device according to claim 1, characterized in that: The drilling mechanism comprises a driving motor and a long-rod drill bit. A mounting groove is arranged on the drilling machine base. The driving motor is fixedly connected to the mounting groove. One end of the long-rod drill bit is fixedly connected to the output end of the driving motor.

4. A deep hole processing device according to claim 2, characterized in that: The sliding seat is provided with a space for accommodating the bottom end of the rotating shaft and the protrusion.

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