A transmission shaft mechanism positioning and punching tool

Abstract

The utility model belongs to mechanical processing fixture technical field discloses a kind of positioning punching tool for transmission shaft mechanism, and the tool is the technology of multiple-point cooperative positioning clamping workpiece;It is mainly composed of tool base, tool center positioning body, radial bottom shaft positioning block and V-shaped corner clamp and constitutes: tool base center is equipped with cylindrical tool center positioning body, its top is provided with cross-fan blade clamping groove;Four bottom shaft positioning blocks are radially distributed in base, and four platforms are formed by division, and mechanism base positioning block is arranged in opposite platform;V-shaped corner clamp is fixed in the corner face of tool center positioning body by corner screw hole.Corresponding to the utility model, when clamping, the frame body cavity of mechanism workpiece is connected with center positioning body, bottom shaft is embedded in bottom shaft positioning block, fan blade is inserted into fan blade clamping groove, mechanism base plate is limited by positioning block, finally, V-shaped corner clamp is locked fan blade pressure plate;The tool is positioned by frame body-bottom shaft-fan blade three-level positioning system, improves the accuracy of workpiece mechanism precision clamping and fixed hole precision machining, supports batch production.

Description

Technical Field

[0001] The utility model relates to the technical field of machining tooling, in particular to a positioning and drilling tooling for a transmission shaft mechanism. Background Art

[0002] At present, for existing conventional machining, parts are generally clamped and fixed on common tooling, and common clamping tooling cannot clamp the entire transmission mechanism. Due to the complex shape of the overall transmission mechanism, multiple components of the transmission mechanism, and complex positions and angles of each component, for small-batch production, the transmission mechanism is generally fixed and clamped by means of cushioning with support blocks, which makes clamping and calibration difficult, and it is hard to ensure the accuracy of the fixed clamping position of the transmission mechanism. After general fixed clamping, positioning

[0003] during the drilling process, the mechanism is prone to loosening, the machining error cannot be controlled, and the machining requirements cannot be met; due to the lack of special clamping tooling, mass production cannot be satisfied; in view of the above reasons, a positioning and drilling tooling for a transmission shaft mechanism is provided. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems that when the transmission mechanism is generally fixed and clamped by means of cushioning with support blocks, it is hard to ensure the accuracy of the fixed clamping position of the transmission mechanism, the mechanism is prone to loosening during positioning and drilling, the machining error cannot be controlled, the machining requirements cannot be met, and mass production cannot be satisfied due to the lack of special clamping tooling; through reasonable design, a positioning and drilling tooling for a transmission shaft mechanism is provided. The utility model is a special clamping tooling for mechanism workpieces, and is a tooling matched with the supporting points of mechanism workpieces. The matched tooling respectively comprises a tooling center positioning body, a bottom shaft positioning block and a mechanism base positioning block, which support the fixed-point positions of a to-be-processed mechanism workpiece. The tooling center positioning body serves as a supporting main body, the supporting main body supports a workpiece frame body, fan blade clamping grooves are reserved at the upper end of the supporting main body respectively, the fan blade clamping grooves, the bottom shaft positioning block and the mechanism base positioning block position the mechanism workpiece, and the mechanism workpiece is fixed through V-shaped clamping corners. The utility model can ensure accurate and correct clamping and fixing of the mechanism workpiece, achieve firm and stable clamping, ensure accurate machining of the mechanism workpiece, and satisfy mass production of mechanism workpieces.

[0005] 动机构固定装夹位置的精确度,定位打孔加工过程中,容易出现机构松动,加工误差无法控制的情况,达不到加工的要求;由于缺少专用的装夹工装,无法满足批量生产的问题;通过合理的设计,提供一种用于传动轴机构定位打孔工装;本实用新型为机构工件专用的装夹工装,与机构工件支撑点位配套的工装;配套的工装分别为:工装中心定位体、底轴定位块、机构底座定位块对待加工机构工件的定点位置进行支撑,工装中心定位体为支撑主体,支撑主体对工件框架体,支撑主体上端分别预留扇叶卡槽,扇叶卡槽、底轴定位块、机构底座定位块对机构工件进行定位,通过V型卡角对机构工件进行固定;能够保证机构工件装夹固定精确无误,装夹牢固稳定,确保机构工件的机加工精确,能够满足机构工件的批量生产。

[0006] To achieve the above objectives, this utility model adopts the following technical solution: A positioning and drilling fixture for a transmission shaft mechanism comprises: a fixture base, a fixture center positioning body, a fan blade slot, a bottom shaft positioning block, a mechanism base platform, a mechanism base positioning block, a V-shaped retaining angle, retaining angle screw holes, a mechanism workpiece, a mechanism bottom shaft seat, a bottom shaft, a workpiece frame, a fan blade, a mechanism base plate, connecting rod holes, a shaft coupling, and a transmission shaft hole. The fixture base has a fixture center positioning body located in the center. Four bottom shaft positioning blocks are radially arranged around the fixture center positioning body. The fixture base is divided into four platforms by the four bottom shaft positioning blocks. Two opposing platforms form a pair of mechanism base platforms, and a pair of mechanism base positioning blocks are symmetrically arranged on both sides of each pair of mechanism base platforms. A screw hole is pre-drilled in the center of each mechanism base positioning block for fastening bolts.

[0007] The lower part of the tooling center positioning body is cylindrical. The upper part of the tooling center positioning body has four pressure plate planes reserved on one side corresponding to the four bottom shaft positioning blocks. The center of the four pressure plate planes on the upper part of the tooling center positioning body has four fan blade slots reserved. The four fan blade slots are cross-shaped. The four pressure plate planes are reserved with corner surfaces at intervals. V-shaped corners are set on the outer side of the corners. Corner screw holes are reserved on the corners of the V-shaped corners. Corner screw holes are reserved on the upper part of the corner surfaces. The corner screw holes are set in correspondence with the corner screw holes. Fastening bolts are set in the corner screw holes.

[0008] The tooling base is equipped with a workpiece, and a workpiece frame is set in the middle of the workpiece. A cylindrical cavity is reserved in the middle of the workpiece frame, and a tooling center positioning body is set in the cavity. Four mechanism bottom shaft seats are arranged around the outer side of the upper end of the workpiece frame. Bottom shaft positioning blocks are set below the mechanism bottom shaft seats respectively, and bottom shafts are axially set below the mechanism bottom shaft seats. The lower end of the workpiece frame is set on the upper part of the tooling base, and two pairs of mechanism base plates are set on both sides of the lower end of the workpiece frame.

[0009] A positioning groove is reserved under the bottom shaft, and a bottom shaft positioning block is set in the positioning groove. The bottom shaft positioning block is used to position the bottom shaft and the bottom shaft seat of the mechanism.

[0010] Two pairs of mechanism base plates are set on top of a pair of mechanism base platforms. The front end of each pair of mechanism base plates is reserved with mechanism base positioning holes, and mechanism base positioning blocks are set in the holes. The mechanism base positioning blocks are used to limit the movement of the mechanism base plates.

[0011] The mechanism's bottom shaft seat is equipped with the shaft coupling of the workpiece. The shaft coupling has axially arranged connecting rod holes and transmission shaft holes. A fan blade is installed at one end of the inner side of the shaft coupling, with the fan blade aligned with the direction of the fan blade slot. The fan blade is installed in the fan blade slot. A pressure plate is installed at the rear end of the fan blade. The pressure plate of the fan blade is installed on the outer side of the pressure plate plane on the upper part of the tooling center positioning body. Two adjacent fan blade pressure plates are set as a 90° corner. A V-shaped corner is set on the outer side of the corner. Fastening bolts are installed in the corner screw holes. The corner screw holes are used to fix the fan blade pressure plate.

[0012] Beneficial effects: This utility model is a clamping fixture specifically for mechanical workpieces, and a fixture that matches the support points of the mechanical workpieces. The matching fixtures are: a fixture center positioning body, a bottom shaft positioning block, and a mechanism base positioning block, which support the fixed position of the mechanical workpiece to be processed. The fixture center positioning body is the main support body, which supports the workpiece frame. The upper end of the main support body is reserved with fan blade slots. The fan blade slots, the bottom shaft positioning block, and the mechanism base positioning block position the mechanical workpiece and fix it with a V-shaped clamping angle. It can ensure that the mechanical workpiece is clamped and fixed accurately and firmly, ensuring the precision of machining of the mechanical workpiece and meeting the needs of mass production of mechanical workpieces. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the overall assembly structure;

[0015] Figure 2 yes Figure 1 A schematic diagram of the V-shaped locking angle structure of the supporting components;

[0016] Figure 3 yes Figure 1 A partial structural diagram showing the assembly and workpiece clamping state;

[0017] Figure 1 , 2 1. Tooling base 1, tooling center positioning body 2, fan blade slot 3, bottom shaft positioning block 4, mechanism base platform 5, mechanism base positioning block 6, V-shaped corner 7, corner screw hole 7-1, mechanism workpiece 8, mechanism bottom shaft seat 9, bottom shaft 10, workpiece frame 11, fan blade 12, mechanism base plate 13, connecting rod hole 14, shaft coupling 15, transmission shaft hole 15-1. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] A tooling center positioning body 2 is set in the middle of the tooling base 1. Four bottom shaft positioning blocks 4 are radially arranged around the tooling center positioning body 2. The tooling base 1 is divided into four platforms by the four bottom shaft positioning blocks 4. Two opposite platforms are set as a pair of mechanism base platforms 5. A pair of mechanism base positioning blocks 6 are symmetrically arranged on both sides of the pair of mechanism base platforms 5. The mechanism base positioning blocks 6 have a pre-drilled screw hole in the center for fastening bolts.

[0020] The lower part of the tooling center positioning body 2 is cylindrical. The upper part of the tooling center positioning body 2 has four pressure plate planes reserved on one side corresponding to the four bottom shaft positioning blocks 4. The center of the four pressure plate planes on the upper part of the tooling center positioning body 2 has four fan blade slots 3 reserved. The four fan blade slots 3 are cross-shaped. The four pressure plate planes are reserved with corner surfaces at intervals. V-shaped corners 7 are set on the outer side of the corners. Corner screw holes 7-1 are reserved on the corners of the V-shaped corners 7. Corner screw holes are reserved on the upper part of the corner surfaces. The corner screw holes and corner screw holes 7-1 are set in correspondence. Fastening bolts are set in the corner screw holes and corner screw holes 7-1.

[0021] The tooling base 1 is equipped with a mechanism workpiece 8, and a workpiece frame body 11 is set in the middle of the mechanism workpiece 8. A cylindrical cavity is reserved in the middle of the workpiece frame body 11, and a tooling center positioning body 2 is set in the cavity. Four mechanism bottom shaft seats 9 are arranged around the outer side of the upper end of the workpiece frame body 11. Bottom shaft positioning blocks 4 are respectively set below the mechanism bottom shaft seats 9. Bottom shafts 10 are axially set below the mechanism bottom shaft seats 9. The lower end of the workpiece frame body 11 is set above the tooling base 1, and two pairs of mechanism base plates 13 are set on both sides of the lower end of the workpiece frame body 11.

[0022] A positioning groove is reserved under the bottom shaft 10, and a bottom shaft positioning block 4 is set in the positioning groove. The bottom shaft positioning block 4 is used to position the bottom shaft 10 and the mechanism bottom shaft seat 9.

[0023] Two pairs of mechanism base plates 13 are set on the top of a pair of mechanism base platforms 5. The front ends of the two pairs of mechanism base plates 13 are reserved with mechanism base positioning holes, and mechanism base positioning blocks 6 are set in the holes respectively. The mechanism base positioning blocks 6 are used to limit the position of the mechanism base plates 13.

[0024] The mechanism's bottom shaft seat 9 is equipped with a shaft coupling 15 for the mechanism's workpiece 8. The shaft coupling 15 is axially provided with connecting rod holes 14 and transmission shaft holes 15-1. A fan blade 12 is provided at one end of the inner side of the shaft coupling 15. The fan blade 12 is positioned in the direction of the fan blade slot 3. The fan blade 12 is placed in the fan blade slot 3. A pressure plate is provided at the rear end of the fan blade 12. The pressure plate of the fan blade 12 is provided on the outer side of the pressure plate plane on the upper part of the tooling center positioning body 2. The pressure plates of two adjacent fan blades 12 are set as a 90° corner. A V-shaped corner 7 is provided on the outer side of the corner. Fastening bolts are provided in the corner screw hole 7-1 and the corner screw hole respectively. The corner screw hole 7-1 is used to fix the pressure plate of the fan blade 12.

Claims

1. A transmission shaft mechanism positioning punching tool, comprising a tool base (1), a tool center positioning body (2), a fan blade clamping groove (3), a bottom shaft positioning block (4), a mechanism base platform (5), a mechanism base positioning block (6), a V-shaped clamping corner (7), a clamping corner screw hole (7-1), a mechanism workpiece (8), a mechanism bottom shaft seat (9), a bottom shaft (10), a workpiece frame body (11), a fan blade (12), a mechanism base plate (13), a connecting rod hole (14), a shaft coupling (15), and a transmission shaft hole (15-1); characterized in that: A tooling center positioning body (2) is set in the middle of the tooling base (1). Four bottom shaft positioning blocks (4) are radially arranged around the tooling center positioning body (2). The tooling base (1) is divided into four platforms by the four bottom shaft positioning blocks (4). Two opposite platforms are set as a pair of mechanism base platforms (5). A pair of mechanism base positioning blocks (6) are symmetrically arranged on both sides of the pair of mechanism base platforms (5). The mechanism base positioning blocks (6) have a pre-drilled screw hole in the center for fastening bolts. ​ The lower part of the tooling center positioning body (2) is cylindrical. The upper part of the tooling center positioning body (2) is reserved with four pressure plate planes corresponding to four bottom shaft positioning blocks (4). The center of the upper four pressure plate planes of the tooling center positioning body (2) is reserved with four fan blade slots (3). The four fan blade slots (3) are set in a cross shape. The four pressure plate planes are reserved with corner surfaces at intervals. V-shaped corners (7) are set on the outside of the corners. Corner screw holes (7-1) are reserved on the corners of the V-shaped corners (7). Corner screw holes are reserved on the upper part of the corner surfaces. The corner screw holes and corner screw holes (7-1) are set in correspondence. Fastening bolts are set in the corner screw holes and corner screw holes (7-1).

2. The tooling apparatus for positioning and punching of a propeller shaft mechanism according to claim 1, wherein: The tooling base (1) is provided with a mechanism workpiece (8), and a workpiece frame body (11) is provided in the middle of the mechanism workpiece (8). A cylindrical cavity is reserved in the middle of the workpiece frame body (11), and a tooling center positioning body (2) is provided in the cavity. Four mechanism bottom shaft seats (9) are arranged around the outer side of the upper end of the workpiece frame body (11). The bottom shaft positioning block (4) is set below the mechanism bottom shaft seat (9) respectively, and the bottom shaft (10) is axially set below the mechanism bottom shaft seat (9). The lower end of the workpiece frame body (11) is set on the upper part of the tooling base (1), and two pairs of mechanism base plates (13) are set on both sides of the lower end of the workpiece frame body (11).

3. The tooling apparatus of claim 1, wherein: The bottom shaft (10) has a reserved positioning groove, and a bottom shaft positioning block (4) is set in the positioning groove. The bottom shaft positioning block (4) is used to position the bottom shaft (10) and the mechanism bottom shaft seat (9).

4. The tooling apparatus of claim 1, wherein: The two pairs of mechanism base plates (13) are set on the top of a pair of mechanism base platforms (5). The front ends of the two pairs of mechanism base plates (13) are reserved with mechanism base positioning holes, and mechanism base positioning blocks (6) are set in the holes respectively. The mechanism base positioning blocks (6) are used to limit the position of the mechanism base plates (13).

5. The tooling apparatus of claim 1, wherein: The mechanism bottom shaft seat (9) is provided with a shaft coupling (15) for the mechanism workpiece (8). The shaft coupling (15) is provided with a connecting rod hole (14) and a transmission shaft hole (15-1) on the shaft coupling (15) respectively. A fan blade (12) is provided at one end of the inner side of the shaft coupling (15). The fan blade (12) is set in the direction of the fan blade slot (3). The fan blade (12) is set in the fan blade slot (3). A pressure plate is provided at the rear end of the fan blade (12). The pressure plate of the fan blade (12) is set on the outer side of the pressure plate plane on the upper part of the tooling center positioning body (2). The pressure plates of two adjacent fan blades (12) are set as a 90° corner. A V-shaped corner (7) is set on the outer side of the corner. The corner screw hole (7-1) and the corner screw hole are respectively provided with fastening bolts. The corner screw hole (7-1) is used to fix the pressure plate of the fan blade (12).

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