Machine tool inner hole machining device

Abstract

The utility model belongs to the technical field of machine tools, and particularly relates to a machine tool inner hole machining device which comprises a tool bar, a tool rest connected to the tool bar and an installation body, the tool bar is connected to the installation body in a sliding mode, and a sliding inner hole matched with the tool bar in a sliding mode is formed in the installation body. A sliding guide limiting assembly is arranged between the installation body and the cutter bar, the cutter bar is driven by a driving assembly to move in a reciprocating mode along the sliding inner hole so as to drive a cutter on the cutter rest to achieve cutter setting, cutter setting is convenient, operation is convenient, the automatic cutter rest can be installed, and machining efficiency is improved. Multiple cutters are mounted and are convenient to replace, the machining efficiency is high, and the defects of a common structure are effectively overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lathe technical field, especially related to a lathe inner hole processing device. BACKGROUND

[0002] The workpiece inner hole has great particularity in processing scene compared with the outer circle, the inner hole operation space is limited, and the installation and operation of complex structure are not facilitated.

[0003] The tool bar overhanging processing is a common processing mode.

[0004] 1. Low processing efficiency:

[0005] The common tool bar front end can only install a tool, and the tool needs to be replaced when the tool wears or processes different profiles. At this time, the tool holder can only be withdrawn to the workpiece outside, and the tool is manually replaced, which is relatively troublesome, and this is the main reason for low processing efficiency.

[0006] 2. It is inconvenient to align the tool:

[0007] The common tool bar is a fixed structure after being installed on the tool holder, and cannot be fine-tuned, especially after replacing the tool, and the operation is inconvenient. INVENTION CONTENTS

[0008] The utility model provides a lathe inner hole processing device, which can solve the problems pointed out in the background art.

[0009] A lathe inner hole processing device, comprising a tool bar, a tool holder connected to the tool bar, and a mounting body, the tool bar is slidingly connected to the mounting body, the mounting body is provided with a sliding inner hole matched with the tool bar, the mounting body is provided with a sliding guide limiting assembly between the tool bar, the tool bar is driven to reciprocate along the sliding inner hole by a driving assembly, so as to drive the tool on the tool holder to realize tool alignment.

[0010] Preferably, the mounting body comprises a base and a gland, the base and the gland are correspondingly provided with a limiting guide groove, the base and the gland are detachably connected, and the sliding inner hole is formed after the two corresponding joints.

[0011] Preferably, the two sides of the gland are detachably connected to the base through bolts.

[0012] Preferably, the sliding guide limiting assembly is arranged between the gland and the tool bar.

[0013] Preferably, the sliding guide limiting assembly comprises a guide positioning key arranged on the gland and a positioning guide groove arranged on the tool bar.

[0014] Preferably, the pressing cover is provided with a pressing member for pressing the cutter bar.

[0015] Preferably, the pressing member is a pressing screw rod arranged in the threaded hole of the pressing cover.

[0016] Preferably, one end of the cutter bar is fixed with the tool holder, and the other end of the cutter bar is connected with the driving assembly.

[0017] Preferably, the driving assembly comprises a connecting frame, a screw rod and a screw nut, the screw nut is arranged at the center of the cutter bar, the screw rod and the screw nut are rotationally matched, and the connecting frame is connected to the mounting body to provide rotational support for the screw rod.

[0018] Preferably, the other end of the cutter bar is provided with a flange plate, and the screw nut is arranged at the center of the flange plate.

[0019] Beneficial effects: the machine tool inner hole machining device is convenient to tool, easy to operate, can install automatic tool holder, installs many cutters and is convenient to change tool, and machining efficiency is high, and the deficiency of common structure is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model,

[0021] Figure 2 is a sectional schematic view of the utility model,

[0022] Figure 3 is a structural schematic view of the cutter bar of the utility model,

[0023] Figure 4 is a structural schematic view of the base of the utility model,

[0024] Figure 5 is a structural schematic view of the pressing cover of the utility model,

[0025] Figure 6 is a use schematic view of the utility model,

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] Marked in the figure: cutter bar 1, tool holder 2, mounting body 3, base 31, pressing cover 32, pressing member 33, guide positioning key 41, positioning guide slot 42, connecting frame 51, screw rod 52, screw nut 53, flange plate 54. DETAILED DESCRIPTION

[0028] One specific embodiment of the utility model will be described in detail in combination with the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.

[0029] Embodiment 1:

[0030] As Figures 1-5 shown, a machine tool inner hole processing device, including a tool bar 1, connected to the tool bar 1 tool holder 2 and installation body 3 ， Tool holder 2 can be an electric tool holder, such as a common electric four-station tool holder, tool bar 1 is slidingly connected to the installation body 3, the installation body 3 is provided with a sliding inner hole matched with the tool bar 1, the installation body 3 is provided with a sliding guide limiting component between the tool bar 1, the tool bar 1 is driven by the driving assembly to reciprocate along the sliding inner hole, so as to drive the tool on the tool holder 2 to realize the alignment.

[0031] Specifically, the installation body 3 includes a base 31 and a gland 32, and the base 31 and the gland 32 are correspondingly provided with a limiting guide groove, and the base 31 and the gland 32 are detachably connected, and the two are correspondingly matched to form a sliding inner hole, and the two sides of the gland 32 are detachably connected on the base 31 through bolts.

[0032] Specifically, one end of the tool bar 1 is fixed with the tool holder 2, and the other end is connected with the driving assembly, the driving assembly includes a connecting frame 51, a lead screw 52 and a lead screw nut 53, the tool bar 1 is provided with the lead screw nut 53 at the center, the lead screw 52 and the lead screw nut 53 are rotationally matched, the connecting frame 51 is connected to the installation body 3 to provide rotational support for the lead screw 52, and the other end of the tool bar 1 is provided with a flange 54, and the lead screw nut 53 is arranged at the center of the flange 54.

[0033] In some embodiments, a sliding guide limiting component is arranged between the gland 32 and the tool bar 1, which is used for installing, assembling, positioning and adjusting the sliding guide limiting of the tool bar 1.

[0034] Specifically, the sliding guide limiting component includes a guide positioning key 41 arranged on the gland 32 and a positioning guide groove 42 arranged on the tool bar 1.

[0035] In some embodiments, the gland 32 is provided with a pressing piece 33 for pressing the tool bar 1, and the pressing piece 33 can be arranged to press the tool bar 1 to eliminate the gap and avoid vibration; specifically, the pressing piece 33 is a pressing screw arranged in the threaded hole of the gland 32.

[0036] The working principle or operation method of the utility model:

[0037] Before inner hole processing, the device is installed on the machine tool tool holder seat position, the pressing piece 33 is loosened, the machine tool tool holder seat is adjusted, the tool tip is roughly aligned with the part to be processed, the fine adjustment lead screw 52 is adjusted, the tool tip is accurately aligned with the part to be processed, the pressing piece 33 is locked, and the processing is started. When the tool needs to be changed, the electric tool holder automatically changes the tool.

[0038] The above disclosed are only several specific embodiments of the present application, but the embodiments of the present application are not limited to this, and any changes that can be thought of by any person skilled in the art shall fall into the protection scope of the present application.

Claims

1. A machine tool internal hole machining device comprising a tool bar (1), a tool holder (2) connected to the tool bar (1), and a mounting body (3) ， characterized in that The cutter bar (1) is slidingly connected to the mounting body (3), the mounting body (3) is provided with a sliding inner hole matched with the cutter bar (1), the mounting body (3) is provided with a sliding guide limiting assembly between the cutter bar (1), the cutter bar (1) is driven to reciprocate along the sliding inner hole by the driving assembly, so as to drive the cutter on the tool holder (2) to realize tool setting.

2. A machine tool bore machining device according to claim 1, characterized in that: The mounting body (3) comprises a base (31) and a gland (32), the base (31) and the gland (32) are provided with corresponding limiting guide grooves, and the base (31) and the gland (32) are detachably connected, and the corresponding fitting forms the sliding inner hole.

3. A machine tool bore machining device according to claim 2, characterised in that: The two sides of the gland (32) are detachably connected to the base (31) by bolts.

4. A machine tool bore machining device according to claim 2, characterized in that: The sliding guide limiting assembly is provided between the gland (32) and the cutter bar (1).

5. A machine tool bore machining device according to claim 4, characterised in that: The sliding guide limiting assembly comprises a guide positioning key (41) provided on the gland (32) and a positioning guide groove (42) provided on the cutter bar (1).

6. A machine tool bore machining device according to claim 2, characterized in that: The gland (32) is provided with a pressing member (33) for pressing the cutter bar (1).

7. A machine tool bore machining device according to claim 6, characterised in that: The pressing member (33) is a pressing screw provided in the threaded hole of the gland (32).

8. A machine tool bore machining device according to any one of claims 1 to 7, characterized in that: One end of the cutter bar (1) is fixed with the tool holder (2), and the other end is connected with the driving assembly.

9. A machine tool bore machining apparatus according to claim 8, characterised in that: The driving assembly comprises a connecting frame (51), a lead screw (52) and a lead screw nut (53), the cutter bar (1) is provided with the lead screw nut (53) at the center, the lead screw (52) and the lead screw nut (53) are rotationally matched, and the connecting frame (51) is connected to the mounting body (3) to provide rotational support for the lead screw (52).

10. A machine tool bore machining apparatus according to claim 9, characterised in that: The other end of the cutter bar (1) is provided with a flange plate (54), and the lead screw nut (53) is arranged at the center of the flange plate (54).

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