Knife rest device with double turning tools

Abstract

The utility model relates to a double-turning-tool rest device which comprises a gang tool rest used for being fixedly connected to an X-axis dovetail groove sliding rail of a machine tool, a multi-stage tool rest is fixedly connected to the gang tool rest, a front turning tool and a rear turning tool are installed on the multi-stage tool rest, and the connecting line of tool noses of the front turning tool and the rear turning tool is parallel to the axis of a main shaft of the machine tool. Or the tool noses of the front turning tool and the rear turning tool are staggered in the radial direction of the machine tool spindle. The gang tool rest is fixed on an X-axis dovetail groove sliding rail of the machine tool and moves along with the X / Z axis of the machine tool; the installation mode of the front turning tool and the rear turning tool is that the connecting line of tool noses of the front turning tool and the rear turning tool is parallel to the axis of the machine tool spindle, or the tool noses of the front turning tool and the rear turning tool are arranged in a staggered mode in the radial direction of the machine tool spindle. Under the condition that the turning tool does not need to be replaced, the turning tool is more suitable for centering turning of the lens. The double-turning-tool rest device is compact in structure, easy to operate, stable in work and beneficial to improvement of machining efficiency.

Description

Technical Field

[0001] The utility model relates to a double-turning tool rest device and relates to the field of lens centering turning processing. Background Art

[0002] In the field of optical component processing and manufacturing systems, especially lens centering turning, this processing belongs to dry cutting and light cutting, which requires high efficiency and high precision. At present, the tool arrangement of the CNC lathe is installed on the X-axis slide rail, which belongs to one tool holder with one tool, or a rotating tool holder with multiple tools. However, in the process of processing the lens metal seat, it is not possible to form it in one time and the tool needs to be replaced, which makes the efficiency of processing the lens metal seat low; at the same time, installing too many tool holders and tools makes the already limited space more crowded, which is not conducive to the detection of lens eccentricity by the autocollimator detection device. The above reasons are not conducive to improving the processing quality and efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a double turning tool holder device.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a double turning tool holder device, including a tool holder for being fixedly connected to the dovetail groove slide rail of the machine tool X-axis, the tool holder is fixedly connected to a multi-stage tool holder, and a front turning tool and a rear turning tool are installed on the multi-stage tool holder, the connecting line of the tool tips of the front turning tool and the rear turning tool is parallel to the axis of the machine tool spindle, or the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle.

[0005] Preferably, the tool holder is provided with a slide groove for slidingly cooperating with the dovetail groove slide rail of the X-axis of the machine tool, and the side of the slide groove is provided with an internal threaded hole for threading the first fixing screw.

[0006] Preferably, a mounting groove is provided on the tool rack, and the non-turning tool end side of the multi-stage tool rack is inserted into the mounting groove and is tightened in the mounting groove by a second set screw threaded on the tool rack.

[0007] Preferably, the front turning tool is arranged on a front tool handle, and the rear turning tool is arranged on a rear tool handle.

[0008] Preferably, the front turning tool and the rear turning tool are arranged on the same double-ended tool handle.

[0009] Preferably, a front turning tool profiling installation groove adapted to the shape of the front turning tool and a rear turning tool profiling installation groove adapted to the shape of the rear turning tool are provided on one end side of the double-ended tool handle, the front turning tool is embedded in the front turning tool profiling installation groove with the tool tip exposed, the rear turning tool is embedded in the rear turning tool profiling installation groove with the tool tip exposed, and a tool pressing block for respectively pressing the front turning tool and the rear turning tool is provided on the double-ended tool handle via screw locking.

[0010] Preferably, the multi-stage tool holder is provided with a front tool handle mounting groove and a rear tool handle mounting groove, and the front tool handle mounting groove and the rear tool handle mounting groove are both composed of a through-slot groove and a clamping groove that penetrate each other, and a clamping wedge block is provided in the clamping groove, and the clamping wedge block and the clamping groove are both fitted with each other via a wedge-shaped surface.

[0011] Preferably, the clamping grooves of the front and rear tool holder mounting grooves are fixedly connected with screws, and the screws pass through the clearance openings opened on the corresponding clamping wedge blocks. The screws are threaded with locking knurled nuts, and the axial direction of the screws is the radial direction of the machine tool spindle, and the screws are clearance-matched with the clearance openings.

[0012] Preferably, the clamping groove and the clamping wedge are both in the shape of a right triangle, wherein one of the right-angled sides of the clamping wedge is the clamping edge of the clamping tool handle.

[0013] Preferably, a pressure plate mounting groove is provided on one of the side surfaces of the multi-stage tool holder, and the pressure plate mounting groove penetrates the side portions of the front and rear tool handle mounting grooves at positions corresponding to the front and rear tool handle mounting grooves, and a pressure plate is provided on the pressure plate mounting groove, and the pressure plate is locked on the multi-stage tool holder by screws, and a third fixing screw is also screwed on the pressure plate for tightening the tool handle inserted into the through-slot slot.

[0014] Compared with the prior art, the utility model has the following beneficial effects: a double turning tool holder device, the tool holder is fixed on the dovetail groove slide rail of the machine tool X axis, and moves with the X / Z axis of the machine tool; the front turning tool and the rear turning tool are installed in such a way that the tool tip connecting line of the front turning tool and the rear turning tool is parallel to the axis of the machine tool spindle, or the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle; it can be more suitable for lens centering turning without changing the turning tool. The double turning tool holder device provided by the utility model is not only compact in structure and simple in operation, but also stable in operation, which is conducive to improving processing efficiency.

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model.

[0017] Figure 2This is a schematic diagram of the working status of Example 1 of the utility model.

[0018] Figure 3 The working state of the second embodiment of the utility model is shown in FIG. Figure 1 (Forward double-ended turning tool).

[0019] Figure 4 The working state of the second embodiment of the utility model is shown in FIG. Figure 2 (Forward double-ended turning tool).

[0020] Figure 5 This is a schematic diagram of the positioning of the double-ended tool holder of Example 2 of the utility model (positive double-ended turning tool).

[0021] Figure 6 This is a schematic diagram of the double-ended tool handle structure of Example 2 of the utility model (positive double-ended turning tool).

[0022] Figure 7 It is a schematic diagram of the partial structure of Example 2 of the utility model (forward double-ended turning tool).

[0023] Figure 8 It is a schematic diagram of the partial structure of Example 2 of the utility model (reverse double-ended turning tool).

[0024] Fig. 9 Schematic diagram of the structure of the multi-stage tool holder. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] like Figure 1~2As shown, this embodiment 1 provides a double turning tool holder device, including a tool holder 1 for being fixedly connected to the dovetail groove slide rail of the machine tool X-axis, the tool holder is fixedly connected to a multi-stage tool holder 2, a front turning tool 3 and a rear turning tool 4 are installed on the multi-stage tool holder, the tool tip connection line of the front turning tool and the rear turning tool is parallel to the axis of the machine tool spindle, or the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle.

[0029] The tool rest is fixed on the dovetail groove slide rail of the X-axis of the machine tool and moves with the X / Z-axis of the machine tool; the front turning tool and the rear turning tool are installed in such a way that the tool tip connecting line of the front turning tool and the rear turning tool is parallel to the axis of the machine tool spindle, or the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle; it can be more suitable for lens centering turning without changing the turning tool. The double turning tool rest device provided by the utility model is not only compact in structure and simple in operation, but also stable in operation, which is conducive to improving processing efficiency.

[0030] In Example 1 of the utility model, the tool holder is provided with a slide groove 5 for slidingly cooperating with the dovetail groove slide rail of the machine tool X-axis, and the side of the slide groove is provided with an internal threaded hole 6 for threading the first fixing screw.

[0031] The position of the tool holder on the dovetail groove slideway of the X-axis of the machine tool can be appropriately adjusted according to product specifications, and the tool holder is tightened on the dovetail groove slideway by the first set screw.

[0032] In Example 1 of the utility model, a mounting groove 7 is provided on the tool rack, and the non-turning tool end side of the multi-stage tool rack is inserted into the mounting groove and is tightened in the mounting groove by a second fixing screw 8 threaded on the tool rack.

[0033] The position of the multi-stage tool rest in the mounting groove can be adjusted by loosening or tightening the second set screw, and the adjustment direction is parallel to the axis direction of the machine tool spindle.

[0034] In Example 1 of the utility model, a front handle mounting groove 9 and a rear handle mounting groove 10 are provided on the multi-stage tool holder, and the front handle mounting groove and the rear handle mounting groove are both composed of a through-hole groove 11 and a clamping groove 12 that penetrate each other, and a clamping wedge block 13 is provided in the clamping groove, and the clamping wedge block and the clamping groove are both fitted with each other via a wedge-shaped surface 14.

[0035] The clamping grooves of the front and rear tool holder mounting grooves are fixedly connected with screws 15, and the screws pass through the clearance openings provided on the corresponding clamping wedge blocks. The screws are threaded with locking knurled nuts 16, and the axial directions of the screws are radial directions of the machine tool spindle, and the screws are clearance-matched with the clearance openings.

[0036] The shapes of the clamping groove and the clamping wedge block are both right-angled triangles, wherein one of the right-angled sides of the clamping wedge block is the clamping edge of the clamping tool handle.

[0037] The shape of the through slot and the tool handle are both quadrilaterals. The tool handle is inserted into the through slot. By rotating the locking knurled nut, the locking knurled nut is pressed against the other right-angled side of the clamping wedge. Under the oblique guidance of the wedge surface, the pressing edge of the clamping wedge is squeezed toward the tool handle side to achieve the positioning of the tool handle in the through slot.

[0038] In Example 1 of the utility model, a pressure plate mounting groove 17 is provided on one side surface of the multi-stage tool holder, and the pressure plate mounting groove is connected with the side portions of the front and rear tool handle mounting grooves at positions corresponding to the front and rear tool handle mounting grooves. A pressure plate 18 is provided on the pressure plate mounting groove, and the pressure plate is locked on the pressure plate mounting groove of the multi-stage tool holder by screws. A third fixing screw 19 is also screwed on the pressure plate for tightening the tool handle inserted into the through slot.

[0039] In Example 1 of the utility model, the front turning tool is arranged on the front tool handle 25 , and the rear turning tool is arranged on the rear tool handle 26 .

[0040] The front turning tool is fixed to the end of the front tool handle, and the rear turning tool is fixed to the end of the rear tool handle. The front tool handle is installed in the front tool handle installation groove, and the rear tool handle is installed in the rear tool handle installation groove. Preferably, the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle.

[0041] The working principle of the embodiment 1 of the utility model is:

[0042] The movable X / Z axis on the machine tool is used as the moving mechanism of the device on the machine tool, and the tool holder is fixed on the dovetail groove slide of the X axis of the machine tool, so that the device can perform precision turning according to the shape of the lens metal seat.

[0043] When turning the front and rear end faces and outer diameter of the lens metal seat, you can choose the appropriate turning tool according to the technical accuracy requirements of the drawing. Figure 2 As shown:

[0044] A: If the front end face and the outer circle have verticality requirements, the front end face and the outer circle are processed by the front turning tool, and the rear end face is processed by the rear turning tool;

[0045] B: If the rear end face and the outer circle have verticality requirements, the rear end face and the outer circle are processed by the rear turning tool, and the front end face is processed by the front turning tool.

[0046] like Figures 3~9 As shown, in Example 2 of the present utility model, unlike Example 1, the front turning tool and the rear turning tool are arranged on the same double-ended tool handle 20, rather than on the front and rear tool handles.

[0047] In Example 2 of the utility model, one end side of the double-ended tool handle is provided with a front turning tool profiling installation groove 21 adapted to the shape of the front turning tool and a rear turning tool profiling installation groove 22 adapted to the shape of the rear turning tool. The front turning tool is embedded in the front turning tool profiling installation groove with the tool tip exposed, and the rear turning tool is embedded in the rear turning tool profiling installation groove with the tool tip exposed. The double-ended tool handle is tightened by screws with a tool pressing block 23 for respectively pressing the front turning tool and the rear turning tool.

[0048] In the second embodiment of the utility model, the front turning tool is locked in the front turning tool profiling installation groove by screws, and the rear turning tool is locked in the rear turning tool profiling installation groove by screws. The turning tool pressing block ensures the stability of the turning tool.

[0049] In Example 2 of the utility model, the front and rear turning tool contoured installation grooves are generally distributed in a "Y" shape, and the "Y" shape distribution can be symmetrical or asymmetrical.

[0050] In Example 2 of the utility model, when the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle: if the tool tip of the rear turning tool protrudes more than the tool tip of the front turning tool, it is a forward double-ended turning tool; if the tool tip of the front turning tool protrudes more than the tool tip of the rear turning tool, it is a reverse double-ended turning tool.

[0051] The working principle of the second embodiment of the present utility model is as follows:

[0052] The movable X / Z axis on the machine tool is used as the moving mechanism of the device on the machine tool, and the tool holder is fixed on the dovetail groove slide of the X axis of the machine tool, so that the device can perform precision turning according to the shape of the lens metal seat.

[0053] When turning the front and rear end surfaces and the outer diameter of the lens metal seat 24, you can choose an appropriate turning tool according to the technical accuracy requirements of the drawing. For example:

[0054] A; If the front end face and the outer circle have verticality requirements, a positive double-ended turning tool is selected. The protruding end turning blade (rear turning tool) of the positive double-ended turning tool first turns the front end face and outer circle of the lens metal seat, and the other turning blade (front turning tool) turns the rear end face. Figure 3-Figure 4 shown.

[0055] B: If the rear end face and the outer circle have verticality requirements, a reverse double-ended turning tool is selected. The protruding end turning blade (front turning tool) of the reverse double-ended turning tool is used to process the rear end face and the outer circle, and the other turning blade (rear turning tool) is used to turn the front end face.

[0056] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A double turning tool holder device, characterized in that: It comprises a tool rack for being fixedly connected to the dovetail groove slide rail of the X-axis of the machine tool, the tool rack is fixedly connected to a multi-stage tool rack, the multi-stage tool rack is equipped with a front turning tool and a rear turning tool, the connecting line of the tool tips of the front turning tool and the rear turning tool is parallel to the axis of the machine tool spindle, or the tool tips of the front turning tool and the rear turning tool are staggered along the radial direction of the machine tool spindle.

2. The double turning tool holder device according to claim 1, characterized in that: The tool rack is provided with a slide groove for slidingly cooperating with the dovetail groove slide rail of the X-axis of the machine tool, and the side of the slide groove is provided with an internal threaded hole for screwing the first set screw.

3. The double turning tool holder device according to claim 1, characterized in that: The tool rack is provided with a mounting groove, the non-turning tool end side of the multi-stage tool rack is inserted into the mounting groove, and is tightened in the mounting groove by a second fixing screw threaded on the tool rack.

4. The double turning tool holder device according to claim 1, characterized in that: The front turning tool is arranged on the front tool handle, and the rear turning tool is arranged on the rear tool handle.

5. The double turning tool holder device according to claim 1, characterized in that: The front turning tool and the rear turning tool are arranged on the same double-ended tool handle.

6. The double turning tool holder device according to claim 5, characterized in that: One end side of the double-ended tool handle is provided with a front turning tool profiling installation groove adapted to the shape of the front turning tool and a rear turning tool profiling installation groove adapted to the shape of the rear turning tool. The front turning tool is embedded in the front turning tool profiling installation groove with the tool tip exposed, and the rear turning tool is embedded in the rear turning tool profiling installation groove with the tool tip exposed. The double-ended tool handle is locked with a tool pressing block for respectively pressing the front turning tool and the rear turning tool.

7. The double turning tool holder device according to claim 4, characterized in that: The multi-stage tool holder is provided with a front tool handle mounting groove and a rear tool handle mounting groove, and the front tool handle mounting groove and the rear tool handle mounting groove are both composed of a through-slot groove and a clamping groove that penetrate each other, and a clamping wedge block is provided in the clamping groove, and the clamping wedge block and the clamping groove are both fitted to each other via a wedge-shaped surface.

8. The double turning tool holder device according to claim 7, characterized in that: The clamping grooves of the front and rear tool holder mounting grooves are fixedly connected with screw rods, and the screw rods pass through the clearance openings provided on the corresponding clamping wedge blocks. The screw rods are threaded with locking knurled nuts, and the axial direction of the screw rods is the radial direction of the machine tool spindle, and the screw rods are clearance-matched with the clearance openings.

9. The double turning tool holder device according to claim 7, characterized in that: The shapes of the clamping groove and the clamping wedge block are both right-angled triangles, wherein one of the right-angled sides of the clamping wedge block is the clamping edge of the clamping tool handle.

10. The double turning tool holder device according to claim 7, characterized in that: A pressure plate mounting groove is provided on one side of the multi-stage tool holder, and the pressure plate mounting groove is connected with the side parts of the front and rear tool handle mounting grooves at positions corresponding to the front and rear tool handle mounting grooves. A pressure plate is provided on the pressure plate mounting groove, and the pressure plate is locked on the multi-stage tool holder by screws. A third fixing screw is also screwed on the pressure plate to tighten the tool handle inserted into the through-slot slot.

Images