Coaxiality detection tool

Abstract

The utility model provides a coaxiality detection tool, which relates to the technical field of detection tools and comprises a lifting plate, the top of the lifting plate is provided with a workpiece, the outer wall of the lifting plate is fixedly provided with a hydraulic cylinder, and the output end of the hydraulic cylinder penetrates through the lifting plate and is fixedly provided with an adjusting seat; in use, a worker places one end, which does not need to be detected, of a workpiece on the top of the sliding plate, then starts a second motor, the two clamping plates get close to each other until the two ends of the workpiece are clamped, then the worker starts an air cylinder, a pressing plate descends until the pressing plate makes contact with the top of the workpiece, the workpiece is fixed at the moment, and then the worker starts a hydraulic cylinder. The output end of the hydraulic cylinder retracts to drive the end, needing to be detected, of the workpiece to move to the position above the lifting plate, finally, a worker starts the first motor, the sliding plate descends till the bottom of the workpiece makes contact with the lifting plate, in this way, the workpieces with different diameters can be placed and fixed, and the detection precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection frock technical field especially relates to coaxality detection frock. BACKGROUND

[0002] Coaxality refers to the coaxial degree of the measured axis relative to the reference axis, and from the geometric meaning, it is the coincidence degree between two axes. It is a kind of position tolerance, and is used for controlling the coaxial relationship between the axis of shaft parts and the reference axis. In the ideal state, the measured axis and the reference axis should be completely coincident, and at this time, the coaxial error is zero. But in actual production, due to the influence of various factors such as processing technology and equipment precision, it is difficult to achieve complete coaxial, and there will be a certain coaxial error.

[0003] In the prior art, the traditional partial coaxality detection frock is usually provided with a clamping device for fixing the workpiece to be detected to prevent it from shaking during detection and affecting the detection. However, the diameters of the two ends of some workpieces are not the same, so during detection, it is difficult to adjust the height of some clamping devices, so it is difficult to fix the other end of the workpiece, which may cause unstable fixation and affect the detection precision. UTILITY MODEL CONTENTS

[0004] The utility model mainly provides a coaxality detection frock convenient for improving the fixing efficiency and preventing the detection precision from being reduced.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: the coaxality detection frock comprises: a lifting plate, a workpiece is arranged on the top of the lifting plate, a hydraulic cylinder is fixedly installed on the outer wall of the lifting plate, the output end of the hydraulic cylinder penetrates through the lifting plate and is fixedly installed with an adjusting seat, a first threaded rod is rotatably installed in the adjusting seat, a first motor is fixedly installed on the top of the adjusting seat, the output end of the first motor is fixedly connected with one end of the first threaded rod, a sliding plate is threadedly connected with the outer wall of the first threaded rod, a storage groove is formed in the top of the sliding plate, a second motor is fixedly installed on the bottom of the sliding plate, the output end of the second motor penetrates into the storage groove and is fixedly installed with a gear, two racks are slidably installed in the storage groove, the two racks are meshingly connected with the gear, a clamping plate is fixedly installed on the top of the rack, an L-shaped plate is fixedly installed on the outer wall of the sliding plate, a gas cylinder is fixedly installed on the top of the L-shaped plate, and a pressing plate is fixedly installed on the output end of the gas cylinder.

[0006] Preferably, the bottom of the lifting plate is provided with a bottom plate, the top of the bottom plate is fixedly installed with a supporting rod, the top of the supporting rod is fixedly installed with a measuring seat, the inside of the measuring seat is rotatably installed with a second threaded rod, the top of the measuring seat is fixedly installed with a third motor, the output end of the third motor is fixedly connected with one end of the second threaded rod, the outer wall of the second threaded rod is threadedly connected with a first sliding block and a second sliding block, the outer wall of the first sliding block is fixedly connected with the lifting plate, the staff starts the third motor, the second threaded rod rotates, and the first sliding block and the second sliding block approach each other.

[0007] Preferably, the outer wall of the second sliding block is fixedly installed with a top plate, the outer wall of the top plate is fixedly installed with a positioning plate, and the outer wall of the measuring seat is provided with a scale groove, when the top plate is in contact with the top of the workpiece, the scale on the scale groove at the bottom of the positioning plate is the outer diameter of the workpiece.

[0008] Preferably, the outer wall of the measuring seat is fixedly installed with a fixed plate, the bottom of the fixed plate is fixedly installed with an electric telescopic rod, the telescopic end of the electric telescopic rod penetrates through the fixed plate and is fixedly installed with a U-shaped plate, one end of the U-shaped plate penetrates and is provided with a threaded hole, the threaded hole is threadedly connected with a third threaded rod, one end of the third threaded rod is fixedly installed with a handle, one end of the third threaded rod is movably connected with a connecting plate, and the outer wall of the connecting plate is fixedly installed with a thimble, the staff rotates the handle, the third threaded rod rotates, the connecting plate moves, the thimble enters the inside of the workpiece, and finally the staff starts the electric telescopic rod, the U-shaped plate rises until the top of the thimble is in contact with the top surface in the inside of the workpiece, and the scale on the scale groove at the top of the U-shaped plate is the inner diameter of the workpiece.

[0009] Preferably, the outer wall of the connecting plate is fixedly installed with a limiting rod, one end of the limiting rod is slidably inserted with the U-shaped plate, the connecting plate is limited, and the connecting plate is prevented from rotating when the third threaded rod rotates.

[0010] Preferably, the inside of the storage groove is provided with T-shaped grooves on the two sides, the two ratchets are fixedly installed with T-shaped plates on the opposite sides, and the two T-shaped plates are slidably connected with the two T-shaped grooves respectively, so that the ratchets are prevented from tilting.

[0011] Preferably, the top of the lifting plate is fixedly installed with a baffle, the workpiece is placed on one side of the baffle, and collision between the workpiece and the thimble when the workpiece rises can be prevented.

[0012] Preferably, the second threaded rod is provided with two threads with opposite textures, the second threaded rod is connected with the first sliding block and the second sliding block through the two threads with opposite textures, and the first sliding block and the second sliding block approach or move away from each other when the second threaded rod rotates.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1. The utility model discloses, when using, the staff places the one end of work piece without needing detection at the top of slide plate, then starts second motor, gear rotates, and then drives two ratchets to move, two clamping plates are close to each other, until clamping the both ends of work piece, then the staff starts pneumatic cylinder, and the output of pneumatic cylinder stretches, pushes down the pressing plate, until the pressing plate and work piece top contact, work piece is fixed at this moment, then the staff starts hydraulic cylinder, and the output of hydraulic cylinder retracts, drives the one end of work piece needing detection to move above lifting plate, finally the staff starts first motor, and first threaded rod rotates, and slide plate drops, until work piece bottom and lifting plate contact, so that the work piece of different diameters is placed and fixed, improves the detection accuracy.

[0015] 2. The utility model discloses, when detecting, the staff starts third motor, and second threaded rod rotates, and first sliding block and second sliding block are close to each other, when top plate and work piece top contact, the scale of positioning plate bottom on scale groove at this moment is work piece outer diameter, when the staff rotates handle, third threaded rod rotates, and connecting plate moves, so that thimble enters work piece inside, finally the staff starts electric telescopic link, and U type board rises, until thimble top and work piece inside top surface contact, the scale of U type board top on scale groove at this moment is work piece inner diameter, so that the work piece inner and outer diameter can be detected simultaneously, improves the detection speed. ACCURACY

[0016] Figure 1 Propose the overall perspective drawing of coaxiality detection frock for the utility model;

[0017] Figure 2 Propose the adjusting seat solid drawing of coaxiality detection frock for the utility model;

[0018] Figure 3 Propose the slide plate sectional view of coaxiality detection frock for the utility model;

[0019] Figure 4 Propose the measuring seat solid drawing of coaxiality detection frock for the utility model;

[0020] Figure 5 Propose the U type board sectional view of coaxiality detection frock for the utility model.

[0021] Legend: 1, base plate; 2, support rod; 3, measuring seat; 4, lifting plate; 5, workpiece; 6, adjusting seat; 7, sliding plate; 8, L-shaped plate; 9, hydraulic cylinder; 10, first threaded rod; 11, first motor; 12, air cylinder; 13, pressing plate; 14, baffle; 15, storage groove; 16, second motor; 17, gear; 18, rack; 19, clamping plate; 20, T-shaped groove; 21, T-shaped plate; 22, second threaded rod; 23, third motor; 24, first sliding block; 25, second sliding block; 26, top plate; 27, positioning plate; 28, scale groove; 29, U-shaped plate; 30, fixed plate; 31, electric telescopic rod; 32, threaded hole; 33, third threaded rod; 34, handle; 35, connecting plate; 36, thimble; 37, limiting rod. DETAILED DESCRIPTION

[0022] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0024] Please refer to Figures 1-5 The present application provides a technical scheme: coaxiality detection tool, comprising: lifting plate 4, the top of lifting plate 4 is provided with workpiece 5, the outer wall of lifting plate 4 is fixedly installed with hydraulic cylinder 9, the output end of hydraulic cylinder 9 penetrates lifting plate 4 and is fixedly installed with adjusting seat 6, the inside of adjusting seat 6 is rotatably installed with first threaded rod 10, the top of adjusting seat 6 is fixedly installed with first motor 11, the output end of first motor 11 is fixedly connected with one end of first threaded rod 10, the outer wall of first threaded rod 10 is threadedly connected with sliding plate 7, the top of sliding plate 7 is provided with storage groove 15, the bottom of sliding plate 7 is fixedly installed with second motor 16, the output end of second motor 16 enters storage groove 15 and is fixedly installed with gear 17, two racks 18 are slidably installed in storage groove 15, the two racks 18 are meshingly connected with gear 17, the top of rack 18 is fixedly installed with clamping plate 19, the outer wall of sliding plate 7 is fixedly installed with L-shaped plate 8, the top of L-shaped plate 8 is fixedly installed with air cylinder 12, the output end of air cylinder 12 penetrates L-shaped plate 8 and is fixedly installed with pressing plate 13.

[0025] As Figure 1 With Figure 3As shown, the bottom of the lifting plate 4 is provided with the bottom plate 1, the top of the bottom plate 1 is fixedly installed with the support rod 2, the top of the support rod 2 is fixedly installed with the measuring seat 3, the inside of the measuring seat 3 is rotatably installed with the second threaded rod 22, the top of the measuring seat 3 is fixedly installed with the third motor 23, the output end of the third motor 23 is fixedly connected with one end of the second threaded rod 22, the outer wall of the second threaded rod 22 is threadedly connected with the first sliding block 24 and the second sliding block 25, the outer wall of the first sliding block 24 is fixedly connected with the lifting plate 4, the staff starts the third motor 23, the second threaded rod 22 rotates, and the first sliding block 24 and the second sliding block 25 approach each other.

[0026] As shown in Figure 3 , the outer wall of the second sliding block 25 is fixedly installed with the top plate 26, the outer wall of the top plate 26 is fixedly installed with the positioning plate 27, the outer wall of the measuring seat 3 is provided with the scale groove 28, when the top plate 26 is in contact with the top of the workpiece 5, the scale on the scale groove 28 at the bottom of the positioning plate 27 at this time is the outer diameter of the workpiece 5.

[0027] As shown in Figure 3 and Figure 5 , the outer wall of the measuring seat 3 is fixedly installed with the fixed plate 30, the bottom of the fixed plate 30 is fixedly installed with the electric telescopic rod 31, the telescopic end of the electric telescopic rod 31 penetrates through the fixed plate 30 and is fixedly installed with the U-shaped plate 29, one end of the U-shaped plate 29 penetrates through the threaded hole 32, the threaded hole 32 is threadedly connected with the third threaded rod 33, one end of the third threaded rod 33 is fixedly installed with the handle 34, one end of the third threaded rod 33 is movably connected with the connecting plate 35, the outer wall of the connecting plate 35 is fixedly installed with the thimble 36, the staff rotates the handle 34, the third threaded rod 33 rotates, the connecting plate 35 moves, so that the thimble 36 enters the inside of the workpiece 5, finally the staff starts the electric telescopic rod 31, the U-shaped plate 29 rises, until the top of the thimble 36 is in contact with the inside top surface of the workpiece 5, at this time the scale on the scale groove 28 at the top of the U-shaped plate 29 is the inside diameter of the workpiece 5.

[0028] As shown in Figure 5 , the outer wall of the connecting plate 35 is fixedly installed with the limiting rod 37, one end of the limiting rod 37 is slidably inserted with the U-shaped plate 29, the connecting plate 35 is limited, to prevent the connecting plate 35 from rotating when the third threaded rod 33 rotates.

[0029] As shown in Figure 3 , the inside of the storage groove 15 is provided with the T-shaped groove 20 on both sides, one side of the two racks 18 is fixedly installed with the T-shaped plate 21, the two T-shaped plates 21 are slidably connected with the two T-shaped grooves 20 respectively, to prevent the rack 18 from tilting.

[0030] As shown in Figure 2 , the top of the lifting plate 4 is fixedly installed with the baffle 14, the workpiece 5 is placed on one side of the baffle 14, which can prevent the workpiece 5 from colliding with the thimble 36 when it rises.

[0031] As Figure 4 shown, the second threaded rod 22 is provided with two sections of threads with opposite textures, the second threaded rod 22 is connected with the first slider 24 and the second slider 25 through the two sections of threads with opposite textures, when the second threaded rod 22 rotates, the first slider 24 and the second slider 25 are close to or away from each other.

[0032] The working principle and method of the device: when in use, the staff places the end of the workpiece 5 which does not need to be detected on the top of the sliding plate 7, and then starts the second motor 16, the gear 17 rotates, and then drives the two racks 18 to move, the two clamping plates 19 are close to each other, until the workpiece 5 is clamped at both ends, then the staff starts the air cylinder 12, the output end of the air cylinder 12 is stretched, and the pressure plate 13 is pushed down, until the pressure plate 13 contacts the top of the workpiece 5, at this time the workpiece 5 is fixed, then the staff starts the hydraulic cylinder 9, the output end of the hydraulic cylinder 9 is retracted, and the end of the workpiece 5 which needs to be detected is moved above the lifting plate 4, finally the staff starts the first motor 11, the first threaded rod 10 rotates, the sliding plate 7 descends, until the bottom of the workpiece 5 contacts the lifting plate 4, so that the workpiece 5 with different diameters can be placed and fixed, and the detection accuracy is improved. When detecting, the staff starts the third motor 23, the second threaded rod 22 rotates, the first slider 24 and the second slider 25 are close to each other, when the top plate 26 contacts the top of the workpiece 5, the scale on the bottom of the positioning plate 27 in the scale groove 28 at this time is the outer diameter of the workpiece 5, at this time the staff rotates the handle 34, the third threaded rod 33 rotates, the connecting plate 35 moves, so that the thimble 36 enters the inside of the workpiece 5, finally the staff starts the electric telescopic rod 31, the U-shaped plate 29 rises, until the top of the thimble 36 contacts the inner top surface of the workpiece 5, at this time the scale on the top of the U-shaped plate 29 in the scale groove 28 is the inner diameter of the workpiece 5, so that the inner and outer diameters of the workpiece 5 can be detected at the same time, and the detection speed is improved.

[0033] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical solution of the present application.

Claims

1. A coaxiality detection tool, characterized in that, Include: Lifting plate (4), the workpiece (5) is arranged on the top of the lifting plate (4), the outer wall of the lifting plate (4) is fixedly installed with a hydraulic cylinder (9), the output end of the hydraulic cylinder (9) penetrates the lifting plate (4) and is fixedly installed with an adjusting seat (6), the first threaded rod (10) is rotatably installed in the adjusting seat (6), the first motor (11) is fixedly installed on the top of the adjusting seat (6), the output end of the first motor (11) is fixedly connected with one end of the first threaded rod (10), the outer wall of the first threaded rod (10) is threadedly connected with a sliding plate (7), the top of the sliding plate (7) is provided with a storage groove (15), the second motor (16) is fixedly installed at the bottom of the sliding plate (7), the output end of the second motor (16) enters the storage groove (15) and is fixedly installed with a gear (17), two rack gears (18) are slidably installed in the storage groove (15), the two rack gears (18) are meshed with the gear (17), the clamping plate (19) is fixedly installed on the top of the rack gear (18), the L-shaped plate (8) is fixedly installed on the outer wall of the sliding plate (7), the air cylinder (12) is fixedly installed on the top of the L-shaped plate (8), the output end of the air cylinder (12) penetrates the L-shaped plate (8) and is fixedly installed with a pressing plate (13).

2. The coaxiality detection tool of claim 1, wherein: The bottom of the lifting plate (4) is provided with a bottom plate (1), the top of the bottom plate (1) is fixedly installed with a supporting rod (2), the top of the supporting rod (2) is fixedly installed with a measuring seat (3), the second threaded rod (22) is rotatably installed in the measuring seat (3), the third motor (23) is fixedly installed on the top of the measuring seat (3), the output end of the third motor (23) is fixedly connected with one end of the second threaded rod (22), the outer wall of the second threaded rod (22) is threadedly connected with a first sliding block (24) and a second sliding block (25), and the outer wall of the first sliding block (24) is fixedly connected with the lifting plate (4).

3. The coaxiality detection tool of claim 2, wherein: The outer wall of the second sliding block (25) is fixedly installed with a top plate (26), the outer wall of the top plate (26) is fixedly installed with a positioning plate (27), and the outer wall of the measuring seat (3) is provided with a scale groove (28).

4. The coaxiality detection tool of claim 2, wherein: The outer wall of the measuring seat (3) is fixedly installed with a fixed plate (30), the bottom of the fixed plate (30) is fixedly installed with an electric telescopic rod (31), the telescopic end of the electric telescopic rod (31) penetrates the fixed plate (30) and is fixedly installed with a U-shaped plate (29), one end of the U-shaped plate (29) penetrates and is provided with a threaded hole (32), the threaded hole (32) is threadedly connected with a third threaded rod (33), one end of the third threaded rod (33) is fixedly installed with a handle (34), one end of the third threaded rod (33) is movably connected with a connecting plate (35), and the outer wall of the connecting plate (35) is fixedly installed with a thimble (36).

5. The coaxiality detection tool of claim 4, wherein: The outer wall of the connecting plate (35) is fixedly installed with a limiting rod (37), and one end of the limiting rod (37) is slidably inserted into the U-shaped plate (29).

6. The coaxiality detection tool of claim 1, wherein: Both sides of the storage tank (15) are provided with T-shaped grooves (20), and the opposite sides of the two racks (18) are fixedly provided with T-shaped plates (21), and the two T-shaped plates (21) are slidably connected with the two T-shaped grooves (20) respectively.

7. The coaxiality detection tool of claim 1, wherein: The top of the lifting plate (4) is fixedly provided with a baffle (14).

8. The coaxiality detection tool of claim 2, wherein: The second threaded rod (22) is provided with two threads with opposite textures, and the second threaded rod (22) is connected with the first sliding block (24) and the second sliding block (25) through the two threads with opposite textures respectively.

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