Inclined shaft type shell inner hole multi-lathe machining clamp

Abstract

The utility model discloses an inclined shaft type shell inner hole number turning clamp which comprises a bottom plate, a first fixing seat and a second fixing seat, the first fixing seat and the second fixing seat are oppositely fixed on the upper end face of the bottom plate, and a shell to be machined is placed between the first fixing seat and the second fixing seat. The shell comprises an upper section and a lower section, a preset angle is formed between the upper section and the lower section, and the lower end of the upper section is connected with the upper end of the lower section; the first fixing seat comprises a first fixing plate, a plurality of limiting blocks used for limiting the Z direction and the X direction of the upper section of the shell are arranged on the first fixing plate, the second fixing seat comprises a second fixing plate, and a plurality of movable rods used for limiting the X direction and the Y direction of the upper section of the shell and fixing claws used for limiting the Z direction and the X direction of the lower section of the shell are movably arranged on the second fixing plate in a penetrating mode. Profiling through grooves in the outer side face of the shell are formed in the connecting faces of the fixing claws and the shell.

Description

Technical Field

[0001] The utility model relates to a numerical control lathe machining fixture for the inner hole of an inclined shaft type housing. Background Art

[0002] In the field of machining, the use of fixtures is crucial. Especially in the machining of the inner hole of a housing, due to its complex structure, it is necessary to design a numerical control lathe machining fixture for the inner hole of an inclined shaft type housing to ensure the machining accuracy and efficiency.

[0003] The traditional machining method is to position and machine with the blank plane and inner hole. Due to the unevenness of the blank surface and the non-adjustability of the tooling, the housing is unevenly stressed during machining, the machine tool speed (S300) cannot be increased, and machining deformation occurs, resulting in low production efficiency, unstable product quality and other factors. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art and provide a numerical control lathe machining fixture for the inner hole of an inclined shaft type housing.

[0005] A numerical control lathe machining fixture for the inner hole of an inclined shaft type housing includes a base plate, a first fixing seat and a second fixing seat. The first fixing seat and the second tooling fixing seat are relatively fixed to the upper end surface of the base plate. A housing to be machined is placed between the first fixing seat and the second fixing seat. The housing includes an upper section and a lower section. There is a predetermined angle between the upper section and the lower section. The lower end of the upper section is connected to the upper end of the lower section.

[0006] The first fixing seat includes a first fixing plate. A plurality of limiting blocks for restricting the Z-direction and X-direction of the upper section of the housing are arranged on the first fixing plate. The second fixing seat includes a second fixing plate. A plurality of movable rods for restricting the X-direction and Y-direction of the upper section of the housing and a fixed claw for restricting the Z-direction and X-direction of the lower section of the housing are movably penetrated through the second fixing plate. A profiling through groove of the outer side surface of the housing is arranged on the connection surface between the fixed claw and the housing.

[0007] The limiting blocks include two first limiting blocks and a second limiting block. A flange is arranged on the outer side of the upper end of the housing. The two first limiting blocks are respectively located on both sides of the housing flange. The inner side surface of the first limiting block is connected to the outer side surface of the flange. The second limiting block is located below the housing flange, and its upper end surface is connected to the lower end surface of the flange.

[0008] Preferably, the movable rod is horizontally and obliquely penetrated through the mounting block. The front end of the movable rod faces the housing. The mounting block is fixedly connected to the second mounting plate.

[0009] Preferably, the movable rod is a long bolt, and an oblique threaded hole is arranged on the mounting block.

[0010] Preferably, a threaded hole is provided on the rear end face of the fixed claw, and a profiling through groove penetrating the upper end face and the lower end face is provided on the front end face of the fixed claw. The fixed claw is fixed by bolts passing through the second fixing plate and the threaded hole in sequence.

[0011] Preferably, positioning posts are provided at the bottoms of the first fixing plate and the second fixing plate, and positioning holes are provided on the bottom plate.

[0012] Preferably, a connecting column is provided between the first fixing seat and the second fixing seat, and both ends of the connecting column are welded to the first fixing seat and the second fixing seat respectively.

[0013] Beneficial effects: Compared with the prior art, in the present utility model, the inclined shaft type housing is fixed between the first fixing seat and the second fixing seat through the limiting block, the long bolt and the fixed claw. The overall method of balancing is adopted to overcome the eccentricity, and the radial runout is controlled within 0.01 mm. After improvement, this lathe processing tooling effectively solves problems such as out-of-balance tolerance and runout tolerance, and at the same time reduces the processing cost. Description of the Drawings

[0014] Figure 1 is a schematic diagram of a boring and turning fixture for the inner hole of an inclined shaft type housing;

[0015] Figure 2 is a schematic diagram of the first fixing seat;

[0016] Figure 3 is a schematic diagram of the second fixing seat;

[0017] Figure 4 is a schematic diagram of the housing;

[0018] In the figure, 1 is the bottom plate, 2 is the first fixing seat, 3 is the second fixing seat, 4 is the housing, 5 is the first limiting block, 6 is the second limiting block, 7 is the stop block, 8 is the mounting block, 9 is the long bolt, 10 is the fixed claw, and 11 is the flange. Detailed Embodiments

[0019] In order to deepen the understanding of the present utility model, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

[0020] As Figures 1-4 shown, 1 is the bottom plate, 2 is the first fixing seat, 3 is the second fixing seat, 4 is the housing, 5 is the first limiting block, 6 is the second limiting block, 7 is the stop block, 8 is the mounting block, 9 is the long bolt, 10 is the fixed claw, and 11 is the flange;

[0021] A bevel axis type shell inner hole machining fixture comprises a base plate 1, a first fixed seat 2, and a second fixed seat 3. The first fixed seat 2 and the second fixture are fixed relative to each other on the upper end surface of the base plate 1. The bottoms of the first fixed plate and the second fixed plate are both provided with positioning columns. The base plate 1 is provided with positioning holes. A connecting column is provided between the first fixed seat 2 and the second fixed seat 3. The two ends of the connecting column are respectively welded to the first fixed seat 2 and the second fixed seat 3.

[0022] The first fixed seat 2 and the second fixed seat 3 are used to place the shell 4 to be processed, the shell 4 includes an upper section and a lower section, a predetermined angle is set between the upper section and the lower section, and the lower end of the upper section is connected to the upper end of the lower section;

[0023] The first fixed seat 2 includes a first fixed plate, on which are provided a plurality of limit blocks for limiting the upper section of the shell 4 in the Z direction and the X direction, the limit blocks including two first limit blocks 5 and a second limit block 6, a flange 11 is provided on the outer side of the upper end of the shell 4, the two first limit blocks 5 are respectively located on both sides of the flange 11 of the shell 4, the inner side surface of the first limit block 5 is connected to the outer side surface of the flange 11, the second limit block 6 is located below the flange 11 of the shell 4, and its upper end surface is connected to the lower end surface of the flange 11.

[0024] The second fixing seat 3 includes a second fixing plate, on which a plurality of movable rods for limiting the upper section of the shell 4 in the X and Y directions and a fixing claw 10 for limiting the lower section of the shell 4 in the Z and X directions are movably penetrated, the movable rods are horizontally and obliquely penetrated in the mounting block 8, the front end of the movable rods faces the shell 4, the mounting block 8 is fixedly connected to the second mounting plate, the movable rods are long bolts 9, the number of long bolts 9 is two, the mounting block 8 is provided with oblique threaded holes, the front end surface of the fixing claw 10 and the shell 4 is provided with a profiled through groove on the outer side of the shell 4, the rear end surface of the fixing claw 10 is provided with a threaded hole, and the fixing claw 10 is fixed by bolts passing through the second fixing plate and the threaded hole in sequence. The first fixing plate is also provided with a stopper 7 matched with the fixing claw 10, and the stopper 7 cooperates with the fixing claw 10 to clamp the shell 4.

[0025] Instructions for use: When clamping the shell 4, place the shell 4 between the two fixing seats so that the flange 11 of the upper section of the shell 4 is located between the two first limit blocks 5, and at the same time supported on the second limit block 6, and the shell 4 is placed against the stop block 7. Use one hand to straighten the shell 4, screw in the long bolt 9 until it fits with the flange 11 of the shell 4, then use one hand to straighten the fixing claw 10 so that the contoured groove of the fixing claw 10 fits with the outer side surface of the shell 4, and use bolts to pass through the threaded holes on the second fixing plate and the rear end surface of the fixing claw 10 in turn to fix it.

[0026] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixture for machining inner holes of an inclined shaft housing, characterized in that: It includes a bottom plate, a first fixing seat, and a second fixing seat, wherein the first fixing seat and the second tool are fixed relative to each other on the upper end surface of the bottom plate, and a shell to be processed is placed between the first fixing seat and the second fixing seat, wherein the shell includes an upper section and a lower section, a predetermined angle is provided between the upper section and the lower section, and the lower end of the upper section is connected to the upper end of the lower section; The first fixed seat comprises a first fixed plate, on which are provided a plurality of limit blocks for limiting the upper section of the shell in the Z and X directions; the second fixed seat comprises a second fixed plate, on which are movably provided a plurality of movable rods for limiting the upper section of the shell in the X and Y directions, and a fixing claw for limiting the lower section of the shell in the Z and X directions; the connecting surface between the fixing claw and the shell is provided with a contoured through groove on the outer side surface of the shell.

2. The fixture for machining inner hole of an inclined shaft housing according to claim 1 is characterized in that: The limit block includes two first limit blocks and a second limit block. A flange is provided on the outer side of the upper end of the shell. The two first limit blocks are respectively located on both sides of the shell flange. The inner side surface of the first limit block is connected to the outer side surface of the flange. The second limit block is located below the shell flange, and its upper end surface is connected to the lower end surface of the flange.

3. The fixture for machining inner hole of an inclined shaft housing according to claim 1 is characterized in that: The movable rod is horizontally and obliquely inserted into the mounting block, the front end of the movable rod faces the housing, and the mounting block is fixedly connected to the second mounting plate.

4. The fixture for machining inner hole of an inclined shaft housing according to claim 3 is characterized in that: The movable rod is a long bolt, and the mounting block is provided with an oblique threaded hole.

5. The fixture for machining inner hole of an inclined shaft housing according to claim 1 is characterized in that: The rear end face of the fixing claw is provided with a threaded hole, the front end face of the fixing claw is provided with a contoured through groove penetrating the upper end face and the lower end face, and the fixing claw is fixed by bolts passing through the second fixing plate and the threaded hole in sequence.

6. The fixture for machining inner hole of an inclined shaft housing according to claim 1, characterized in that: The bottoms of the first fixing plate and the second fixing plate are both provided with positioning columns, and the bottom plate is provided with positioning holes.

7. The fixture for machining inner hole of an inclined shaft housing according to claim 1 is characterized in that: A connecting column is provided between the first fixing seat and the second fixing seat, and two ends of the connecting column are respectively welded to the first fixing seat and the second fixing seat.

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