Booster base clamping tool for vertical lathe

Abstract

The utility model discloses a supercharger base clamping tool for a vertical lathe, which is simpler to process after clamping and saves the cost of a cutter. A supercharger base clamping tool for a vertical lathe machine tool comprises a tool frame, the tool frame comprises a square bottom plate, a mounting cylinder with a square cross section is arranged on the bottom plate, two layers of connecting plates are flatly arranged on the four inner walls of the mounting cylinder respectively, the two layers of connecting plates correspond to two parallel plates of a supercharger base, and the two layers of connecting plates correspond to the two parallel plates of the supercharger base. Vertical tool screw holes are respectively formed in the two layers of connecting plates, and tool pin holes are respectively formed in the outer side ends of the two layers of connecting plates; the two parallel plates of the supercharger base are provided with base screw holes, the base screw holes are fixedly connected with the tool screw holes in the corresponding connecting plates through screws, the four corners of the supercharger base are provided with base pin holes, the base pin holes are in pin connection with the tool pin holes in the outer side ends of the corresponding connecting plates, and vertical clamping of the supercharger base is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of superchargers, in particular to a clamping tool for a supercharger base used in a vertical lathe machine tool. Background Art

[0002] The bottom of a finished turbocharger is provided with a base, and the base plays a role in installation and support in the supercharger. There is an arc surface upward from the bottom of the base, and the arc surface cooperates with the gas exhaust housing assembly. The level of the cooperation degree determines the magnitude of the vibration generated when the turbocharger works, and the long-term vibration will affect the service life of the turbocharger.

[0003] The original processing structure diagram of the base is as Figure 2 shown. 1 is a diamond pin, 2 is a positioning block, and 3 is a positioning pin. When processing the base, this tooling is used. For the R356 arc surface with a width of 18 mm, the original process design is to process it on a five-axis machining center machine tool. The part is clamped at the center of the workbench, and the outer R356 arc surface is processed by rotating the workbench 180° and using a straight shank end mill with a diameter of 25; for the inner R405 arc surface, due to the interference of the outer R356 arc surface, a tool bar with a diameter of 85 and a cutter head with a diameter of 200 are customized for processing. Since the maximum clamping tool bar diameter of the in-plant five-axis machining center machine tool is 74, and the weight of the special tool exceeds the bearing range of the equipment, the R405 arc surface is processed on a numerically controlled boring machine.

[0004] Defect Analysis:

[0005] 1. The part is clamped twice, increasing the workload of the machine tool, reducing the production efficiency, and there is a deviation in zero concentricity.

[0006] 2. When processing the R405 arc on the boring machine, due to the large weight of the tool and the long length of the tool bar extending out, it is impossible to guarantee the dimensional tolerance and roughness.

[0007] 3. The cost of customizing the tool is high. Content of the Utility Model

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a clamping tool for a supercharger base used in a vertical lathe machine tool, which is simpler to process after clamping and saves the tool cost.

[0009] The purpose of the utility model is achieved as follows:

[0010] A clamping tool for a supercharger base used in a vertical lathe machine tool,

[0011] It includes a tooling frame, and the tooling frame includes a square bottom plate. An installation cylinder with a square cross-section is provided on the bottom plate. Two layers of connecting plates are respectively and horizontally provided on the four inner walls of the installation cylinder. The two layers of connecting plates correspond to the two parallel plates of the supercharger base. Vertical tool screw holes are respectively provided on the two layers of connecting plates, and tool pin holes are respectively provided at the outer ends of the two layers of connecting plates;

[0012] Base screw holes are provided on the two parallel plates of the supercharger base. The base screw holes and the tool screw holes on the corresponding connecting plates are fixedly connected by screws. Base pin holes are provided at the four corner positions of the supercharger base. The base pin holes and the tool pin holes at the outer ends of the corresponding connecting plates are pin-connected to realize the vertical clamping of the supercharger base.

[0013] Preferably, the tool pin holes at the outer ends of the upper connecting plates are positioned by circular positioning pins, and the tool pin holes at the outer ends of the lower connecting plates are positioned by diamond pins.

[0014] Preferably, a lifting hole is provided above the tooling frame.

[0015] Preferably, the edge part of the square bottom plate is fixed on the workbench of the vertical lathe by screws and pressing blocks.

[0016] Due to the adoption of the above technical solutions, the utility model has the following beneficial effects:

[0017] 1. Two or four parts can be processed at one time, improving the processing efficiency.

[0018] 2. Using a turning tool for processing, the turning tool is light in weight, the turning tool clamping is more stable, the clamping length of the turning tool is short, and the processing quality is better.

[0019] 3. Two arc surfaces can be processed simultaneously in one clamping, better ensuring concentricity.

[0020] 4. The processing is simpler, the tool cost is saved, and the labor intensity of the operator is reduced. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the supercharger base;

[0022] Figure 2 It is a schematic structural diagram of the utility model;

[0023] Figure 3 It is a schematic top view structural diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of tool processing;

[0025] Figure 5 It is a schematic diagram of the processing of the supercharger base. Detailed Implementation Modes

[0026] A clamping tool for a supercharger base of a vertical lathe machine tool, comprising a tooling frame 2. The tooling frame 2 includes a square base plate, and an installation cylinder with a square cross-section is provided on the base plate. A hoisting hole is provided above the tooling frame, and the edge part of the square base plate is fixed on the workbench of the vertical lathe machine tool by screws and pressing blocks. Two layers of connecting plates 4 are respectively and horizontally provided on the four inner walls of the installation cylinder. The two layers of connecting plates 4 correspond to the two parallel plates 7 of the supercharger base. Vertical tool screw holes 5 are respectively provided on the two layers of connecting plates 4, and tool pin holes 6 are respectively provided at the outer ends of the two layers of connecting plates 4.

[0027] Base screw holes 8 are provided on the two parallel plates 7 of the supercharger base. The base screw holes 8 are fixedly connected with the tool screw holes 5 on the corresponding connecting plates 4 by screws. Base pin holes 9 are provided at the four corner positions of the supercharger base. The base pin holes 9 are pin-connected with the tool pin holes 6 at the outer ends of the corresponding connecting plates 4 to realize the vertical clamping of the supercharger base. After the supercharger base is vertically clamped, its two R405 arc surfaces can be machined in different tool directions along the up and down directions, that is, the upper R405 arc surface is machined with a tool with the cutting edge facing up. In this embodiment, the tool pin holes 6 at the outer ends of the upper connecting plate are positioned by a circular positioning pin 3, and the tool pin holes 6 at the outer ends of the lower connecting plate are positioned by a diamond pin 1.

[0028] In this utility model, considering the actual processing conditions and equipment, a special turning tooling is designed to machine the two arc surfaces of the base in one clamping.

[0029] The detailed implementation steps are divided into the following three steps, and the specific content is as follows:

[0030] The first step: Tooling design. Clamp the tooling frame at the center of the workbench of the vertical lathe machine tool, fix the tooling with screws and pressing block parts on the steps around the frame, fix the base on the four tool pin holes 6 on each side of the tooling frame with pins, and then perform turning processing. According to Figure 1 , the distance from the bottom surface of the base to the center of the circle is 449.5 mm. Therefore, the side length of the inner square of the tooling frame is designed to be 449.5 * 2 mm, the outer side length is designed to be 1000, and the width of the step is designed to be 1200 mm according to the size of the workbench of the vertical lathe machine tool. The tool pin holes 6 around the tooling frame are designed according to the positions of the 4 Φ22 holes (base pin holes 9) of the part, and the pin hole positions are determined with the center 250 mm downward from the upper surface as the center of the circle. 8 M16 hoisting holes are designed above the tooling frame.

[0031] The second step: Clamp the part. Clamp and correct the base on the tooling, align the tool with the upper surface of the tooling frame, and then offset the zero point Z downward by 250. Before processing, the axial circular runout and the radial circular runout corrections are both within 0.005 - 0.01 mm.

[0032] Step 3: Machining. First, use an internal hole turning tool to rough machine the R356 arc surface, leaving a 0.2 mm allowance; as Figure 4 shown, the pointed end is the blank to be machined. Use a horizontally mounted external turning tool to machine the lower R405 arc surface, leaving a 0.2 mm allowance; then use another horizontally mounted external turning tool, install the tool in reverse, and machine the upper R405 arc surface; leave a 0.2 mm allowance; finally, perform finish machining.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in terms of form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A clamping tool for a supercharger base of a vertical lathe machine tool, characterized in that: It includes a tooling frame, the tooling frame includes a square bottom plate, and an installation cylinder with a square cross-section is provided on the bottom plate. Two layers of connecting plates are respectively and horizontally arranged on the four inner walls of the installation cylinder. The two layers of connecting plates correspond to the two parallel plates of the supercharger base. Vertical tool screw holes are respectively provided on the two layers of connecting plates, and tool pin holes are respectively provided at the outer ends of the two layers of connecting plates; Base screw holes are provided on the two parallel plates of the supercharger base. The base screw holes and the tool screw holes on the corresponding connecting plates are fixedly connected by screws. Base pin holes are provided at the four corner positions of the supercharger base. The base pin holes and the tool pin holes at the outer ends of the corresponding connecting plates are pin-connected to realize the vertical clamping of the supercharger base.

2. The clamping tool for a supercharger base of a vertical lathe machine tool according to claim 1, characterized in that: The tool pin holes at the outer ends of the upper connecting plates are positioned by circular positioning pins, and the tool pin holes at the outer ends of the lower connecting plates are positioned by diamond pins.

3. The clamping tool for the supercharger base of a vertical lathe machine tool according to claim 1, characterized in that: A lifting hole is provided above the tooling frame.

4. A clamping tool for a supercharger base of a vertical lathe machine tool according to claim 1, characterized in that: The edge part of the square bottom plate is fixed on the workbench of the vertical lathe machine tool by screws and pressing blocks.

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