Tool for detecting runout and coaxiality of taper hole of main shaft

Abstract

The utility model relates to the technical field of detection tools, in particular to a spindle taper hole run-out and coaxiality detection tool which comprises a base, a vertical plate is horizontally and slidably connected to the top of the base, a rotating shaft is rotatably connected to the vertical plate, a rotating seat is fixedly connected to one end of the rotating shaft, and a first motor used for driving the rotating seat to rotate is fixedly connected to the vertical plate. A pair of arc-shaped plates is arranged on the rotating seat; the driving assembly is arranged on the rotating seat and drives the two arc-shaped plates to synchronously move to clamp the main shaft, a fixing plate is fixedly connected to the top of the base, an air cylinder is fixedly connected to the end, close to the vertical plate, of the fixing plate, and the output end of the air cylinder is fixedly connected with the vertical plate. Compared with detection in the prior art, through arrangement of the rotating seat, the motor I and other components, the stability of the main shaft in the rotating process is ensured, the problems of axial deviation and radial swing caused by manual operation are effectively avoided, and thus the accuracy and repeatability of taper hole precision detection are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection frock technical field especially relates to a main shaft taper hole runout and coaxality detection frock. BACKGROUND

[0002] The main shaft is the core component of precision machinery, and its taper hole runout and rotation coaxality directly affect the machining precision. In the automobile, electronic, mechanical and other industries, it is necessary to strictly detect these two key indicators to ensure product quality and service life. High-precision detection is a necessary link to ensure the performance of the main shaft.

[0003] The prior art such as the announcement number CN216770391U discloses a main shaft taper hole runout and coaxality detection frock, which comprises a base, three sliding plates and a support structure. The base is provided with a sliding groove, the first sliding plate drives the first support plate (containing a first V-shaped groove) to be adjustable positioning; the second sliding plate is connected with the second support plate with left / right clamping blocks, forming an adjustable second V-shaped groove; the third sliding plate is provided with a detection steel ball baffle, which is contacted and detected through the high-low V-shaped groove and the steel ball. The structure is simple, convenient to operate and low in cost, and can accurately measure the main shaft taper hole runout and coaxality.

[0004] However, the technical scheme has the following problems in actual use:

[0005] The main shaft is in full contact with the detection steel ball under the action of its own weight, and the operator can measure the taper hole precision of the main shaft and the rotation precision of the main shaft by manually rotating the main shaft. Since the main shaft is manually rotated, axial deviation and radial swing are easy to occur, it is difficult to maintain stable rotation, the accuracy of the data during measurement is reduced, and the high-precision taper hole detection requirement cannot be met. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problem that the main shaft is manually rotated, axial deviation and radial swing are easy to occur, and it is difficult to maintain stable rotation in the prior art, and provides a main shaft taper hole runout and coaxality detection frock.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A main shaft taper hole runout and coaxality detection frock, comprising a base, the top of the base is horizontally and slidably connected with a vertical plate, the vertical plate is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a rotating seat, the vertical plate is fixedly connected with a motor one for driving the rotating seat to rotate, and a pair of arc-shaped plates are arranged on the rotating seat;

[0009] Further comprising:

[0010] A driving assembly is arranged on the rotating seat, and the driving assembly drives the two arc-shaped plates to move synchronously and clamp the main shaft.

[0011] Preferably, a fixed plate is fixedly connected to the top of the base, a cylinder is fixedly connected to one end of the vertical plate close to the fixed plate, and an output end of the cylinder is fixedly connected to the vertical plate.

[0012] Preferably, a limiting groove is formed in the top of the base, and the vertical plate and the limiting groove are horizontally and slidably connected.

[0013] Preferably, the driving assembly comprises a pair of connecting ears fixedly connected to the rotating seat away from the side wall of the rotating shaft, a same bidirectional lead screw is rotatably connected to the opposite side walls of the two connecting ears, a pair of moving seats are threadedly connected to the bidirectional lead screw, and a second motor for driving the bidirectional lead screw to rotate is fixed to the connecting ears.

[0014] Preferably, an L-shaped rod is horizontally inserted into the moving seat, one end of the L-shaped rod is fixedly connected to the arc-shaped plate, a cross plate is fixedly connected to the moving seat, and the cross plate and the L-shaped rod are threadedly connected with a same anti-disengagement rod.

[0015] Preferably, a sliding groove is formed in the rotating seat, and the two moving seats are slidably connected to the sliding groove.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a rotating seat and motor one etc. setting are driven by the cylinder and are driven by two arc-shaped plates precision clamping main shaft in detection, and then motor one drives rotating seat and main shaft synchronous rotation through rotating shaft, and this electric drive mode ensures the stability of the rotation process of the main shaft, effectively avoids the axial deviation and radial swing problem caused by manual operation, thereby improve the accuracy and repeatability of taper hole precision detection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model discloses a main shaft taper hole runout and coaxiality detection frock;

[0019] Figure 2 It is Figure 1 The enlarged view of A in the middle;

[0020] Figure 3 It is the schematic diagram that L-shaped rod is far away from moving seat in the utility model discloses a main shaft taper hole runout and coaxiality detection frock.

[0021] In the drawing:

[0022] 1, base;

[0023] 2, vertical plate;21, fixed plate;22, cylinder;23, limiting groove;

[0024] 3, rotating shaft;

[0025] 4, transfer seat; 41, connecting lug; 42, bidirectional screw; 43, moving seat; 44, sliding groove; 45, motor two; 46, cross plate; 47, anti-off rod; 48, L-shaped rod;

[0026] 5, motor one; 6, arc plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0028] Referring to Figures 1-3 A main shaft taper hole runout and coaxiality detection tool, including base 1, base 1 top horizontal sliding connection has vertical plate 2, vertical plate 2 on the rotating shaft 3 is rotatably connected, rotating shaft 3 one end fixedly connected with transfer seat 4, rotating shaft 3 and transfer seat 4 under the action of motor one 5 synchronous rotation, drive the clamped fixed main shaft to rotate and detect. Vertical plate 2 is fixedly connected with motor one 5 for driving transfer seat 4 to rotate, transfer seat 4 is provided with a pair of arc plate 6;

[0029] Also includes:

[0030] Drive assembly, drive assembly is arranged on transfer seat 4, drive assembly drives two arc plate 6 synchronous movement clamping main shaft.

[0031] Base 1 top fixedly connected with fixed plate 21, fixed plate 21 is fixedly connected with cylinder 22 near one end of vertical plate 2, the output end of cylinder 22 and vertical plate 2 are fixedly connected.

[0032] Base 1 top is provided with a limiting slot 23, vertical plate 2 and limiting slot 23 horizontal sliding connection. The cooperation of limiting slot 23 and cylinder 22 can make arc plate 6 horizontally flexible to move to the appropriate position to clamp and fix the main shaft.

[0033] Drive assembly includes a pair of connecting lug 41 fixedly connected on the side wall of transfer seat 4 away from rotating shaft 3, two connecting lug 41 opposite side wall is rotatably connected with the same bidirectional screw 42, the bidirectional screw 42 is screw connected with a pair of moving seat 43, connecting lug 41 is fixedly connected with motor two 45 for driving bidirectional screw 42 to rotate. The cooperation of bidirectional screw 42 and motor two 45 drive makes two moving seat 43 synchronous relative movement, realizes the clamping of arc plate 6 to the main shaft.

[0034] The L-shaped rod 48 is horizontally inserted on the moving seat 43, one end of the L-shaped rod 48 is fixedly connected with the arc-shaped plate 6, the moving seat 43 is fixedly connected with a horizontal plate 46, and the horizontal plate 46 is threadedly connected with the same anti-disengagement rod 47 as the L-shaped rod 48. The anti-disengagement rod 47 is arranged to facilitate subsequent quick replacement of the arc-shaped plate 6.

[0035] The sliding groove 44 is arranged on the rotating seat 4, and the two moving seats 43 are slidingly connected with the sliding groove 44. The sliding groove 44 is arranged to enable the moving seat 43 to stably move along the axial direction of the bidirectional lead screw 42.

[0036] The first support plate, the first support part, the first mounting block and the first support steel pipe in the prior art are arranged on the base 1, and the second sliding plate, the second support plate, the second support part, the second mounting block, the second support steel pipe, the third sliding plate, the baffle, the detection steel ball, the left clamping block, the right clamping block and the main shaft are arranged on the base 1. The working principle of the above-mentioned components in the prior art is disclosed in the main shaft taper hole runout and coaxiality detection tool with the announcement number CN216770391U, which is the prior art and will not be described in detail here.

[0037] The function principle of the utility model can be described by the following operation modes:

[0038] Positioning main shaft: place the main shaft to be measured horizontally on the first support plate and the second support plate on the base 1.

[0039] Start the air cylinder 22 to push the vertical plate 2 to slide horizontally along the limiting groove 23 until one end of the main shaft is located on the opposite side of the two arc-shaped plates 6.

[0040] Start the motor two 45 to drive the bidirectional lead screw 42 to rotate, drive the two moving seats 43 to move synchronously and oppositely along the sliding groove 44, and drive the L-shaped rod 48 to push the arc-shaped plate 6 to close, so as to clamp the outer wall of the main shaft in the radial direction.

[0041] When rotating detection is performed, start the motor one 5 to drive the rotating shaft 3 to drive the rotating seat 4 and the main shaft to rotate at a constant speed. Without manual operation, the radial runout (reflecting the coaxiality) of the inner wall of the taper hole and the end face runout data are detected.

[0042] When it is necessary to select the arc-shaped plate 6 according to the size of the main shaft (in order to ensure close fitting when clamping and fixing), the operator unscrews the anti-disengagement rod 47, and takes off the L-shaped rod 48 and the arc-shaped plate 6 from the moving seat 43 at the same time to replace them.

[0043] The above is only a preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A fixture for detecting spindle taper hole runout and coaxiality, comprising a base (1), characterized in that, The base (1) has a vertical plate (2) horizontally slidably connected to the top. A rotating shaft (3) is rotatably connected to the vertical plate (2). A rotating seat (4) is fixedly connected to one end of the rotating shaft (3). A motor (5) for driving the rotating seat (4) to rotate is fixedly connected to the vertical plate (2). A pair of arc plates (6) are provided on the rotating seat (4). Also includes: A drive assembly is disposed on the rotary table (4) and drives the two arc plates (6) to move synchronously to clamp the spindle.

2. The spindle taper hole runout and coaxiality detection fixture according to claim 1, characterized in that, A fixing plate (21) is fixedly connected to the top of the base (1), and a cylinder (22) is fixedly connected to one end of the fixing plate (21) near the vertical plate (2). The output end of the cylinder (22) is fixedly connected to the vertical plate (2).

3. The fixture for detecting spindle taper hole runout and coaxiality according to claim 1, characterized in that, The base (1) has a limiting groove (23) on its top, and the vertical plate (2) and the limiting groove (23) are horizontally slidably connected.

4. The spindle taper hole runout and coaxiality detection fixture according to claim 1, characterized in that, The drive assembly includes a pair of connecting ears (41) fixedly connected to the side wall of the rotary seat (4) away from the rotating shaft (3). The two connecting ears (41) are rotatably connected to the same bidirectional lead screw (42) on opposite side walls. A pair of movable seats (43) are threaded onto the bidirectional lead screw (42). A second motor (45) for driving the bidirectional lead screw (42) to rotate is fixed on the connecting ears (41).

5. The spindle taper hole runout and coaxiality detection fixture according to claim 4, characterized in that, An L-shaped rod (48) is horizontally inserted into the movable seat (43). One end of the L-shaped rod (48) is fixedly connected to the arc plate (6). A horizontal plate (46) is fixedly connected to the movable seat (43). The horizontal plate (46) and the L-shaped rod (48) are threaded together with the same anti-detachment rod (47).

6. The spindle taper hole runout and coaxiality detection fixture according to claim 4, characterized in that, The rotating base (4) is provided with a sliding groove (44), and the two movable bases (43) and the sliding groove (44) are slidably connected.

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