Vertical testing fixture for detecting multi-point coaxiality of outer ball cage bell housing

Abstract

The utility model relates to a vertical testing fixture for multi-point coaxiality detection of an outer ball cage bell housing, which comprises a base, a vertical support, a chuck, a measuring arm, an ejector pin, horizontal adjusting mechanisms and an axial adjusting mechanism, the vertical support and the chuck are parallelly arranged at the top of the base, the horizontal adjusting mechanisms are sequentially arranged on the vertical support from top to bottom, and the measuring arm is arranged on the vertical support. The measuring arm is in sliding connection with the horizontal adjusting mechanism, the axial adjusting mechanism is hinged to the top of the vertical support, and the ejector pin is in sliding fit with the top of the vertical support, driven by the axial adjusting mechanism and vertically opposite to the chuck. According to the technical scheme, the detection tool can detect the coaxiality of a plurality of positions on the outer surface of the outer ball cage bell housing at the same time, so that repeated operation is not needed, the consumed time is short, the efficiency is higher, and the detection precision can also be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of outer ball cage detection device, more specifically to a kind of vertical gauge for outer ball cage bell housing multi-point coaxial degree detection. BACKGROUND

[0002] The full name of outer ball cage is constant velocity joint outer ball cage, it is an important component in automobile transmission system, it is usually composed of bell housing, steel ball, retainer and star-shaped sleeve, among them, bell housing is made of high-strength metal, it plays the role of protecting internal parts and transmitting torque, its design shape can accommodate other key components, and it is connected with the transmission system of vehicle, therefore, the quality of bell housing will directly affect the stability of power transmission, and the detection of the surface coaxiality of bell housing is an important link in quality detection process, which uses coaxiality detector device.

[0003] The utility model discloses a kind of outer ball cage coaxiality detection devices, it includes base, three-jaw chuck and protractor disc are equipped on base, protractor disc is fixed on base, three-jaw chuck is fixed on the upper end surface of protractor disc, three-jaw chuck is used to chuck outer ball cage, protractor disc is used to support and drive three-jaw chuck, protractor disc is equipped with dial, when protractor disc drives three-jaw chuck and drives outer ball cage to rotate, the number indicated on dial is the angle of rotation of outer ball cage, fixed frame and dial gauge are equipped on the side of protractor disc, fixed frame is fixed on base, dial gauge is fixedly installed on fixed frame, the contact of dial gauge is pressed against the outer surface of outer ball cage.

[0004] The coaxiality detection device of the above structure has the following deficiencies in actual detection process, since bell housing is formed after production, head shell outer surface, tail shaft outer surface and other multiple positions need to be detected for coaxiality to ensure overall quality, and the device can only detect the coaxiality of single position in unit time, therefore, it needs to be operated repeatedly by operating personnel to complete all detection, a lot of time and energy are consumed in the whole detection process, resulting in low detection efficiency, and detection accuracy is also affected. UTILITY MODEL CONTENTS

[0005] In view of the above situation, in order to overcome the problem that the existing outer ball cage bell housing outer surface coaxiality detection device can only detect the coaxiality of single position in unit time, so that it needs to be operated repeatedly by operating personnel to complete all detection, thus time-consuming and labor-consuming, detection efficiency is low, and detection accuracy is also affected, the purpose of the utility model is to provide a detection device which can detect the coaxiality of multiple positions on the outer surface of outer ball cage bell housing simultaneously, so that it does not need to be operated repeatedly, time-consuming is shorter, efficiency is higher, and detection accuracy can also be significantly improved.

[0006] To achieve the above objectives, the technical solution of this utility model is:

[0007] A vertical fixture for multi-point coaxiality testing of an outer ball cage bell shell includes a base, a vertical support, a chuck, a measuring arm, a ejector pin, a horizontal adjustment mechanism, and an axial adjustment mechanism. The vertical support and the chuck are arranged side by side on the top of the base. The horizontal adjustment mechanism is arranged sequentially from top to bottom on the vertical support and is opposite to the chuck. The measuring arm is slidably connected to the horizontal adjustment mechanism. The axial adjustment mechanism is hinged to the top of the vertical support, and the ejector pin is slidably engaged with the top of the vertical support and driven by the axial adjustment mechanism, and is vertically opposite to the chuck.

[0008] Preferably, the leveling mechanism includes a guide block and a slider. The guide block is connected to the vertical support, and a slide rail is provided on the guide block. The slider slides in the slide rail, and the measuring arm is connected to the slider.

[0009] Preferably, the horizontal adjustment mechanism further includes a first fastening bolt and a first washer. The slider has an adjustment groove that is opposite to the slide rail. The first fastening bolt passes through the adjustment groove into the slide rail and is threaded into the slide rail. The first washer is fitted onto the first fastening bolt and abuts against the circumferential direction of the adjustment groove.

[0010] Preferably, the axial adjustment mechanism includes a handle, a rotating shaft, and a limiting block. The handle is hinged to a vertical support via the rotating shaft, the limiting block is located on the outer wall of the ejector pin, and a push block is formed on the handle, which is embedded below the limiting block.

[0011] Preferably, the axial adjustment mechanism further includes a pad, which is fitted onto the ejector pin and supported by a vertical bracket, and the push block of the handle is embedded between the limit block and the pad.

[0012] Preferably, the measuring arm has a clamping block, which has two sets, with the two clamping blocks spaced apart from each other and a clamping hole formed between the two clamping blocks. The two clamping blocks are also threaded with a second fastening bolt, which passes through the clamping hole and has a second washer fitted on its outer wall, with the second washer abutting against the outer wall of the clamping block.

[0013] Preferably, the number of measuring arms and corresponding leveling mechanisms is three sets.

[0014] Preferably, the vertical support includes a support frame and a flat plate frame. The bottom of the support frame is connected to the base, the flat plate frame is located on the top of the support frame and is vertically opposite to the chuck. A horizontal adjustment mechanism is provided on the side wall of the support frame. A rotating seat is formed on the top of the flat plate frame and a guide hole is provided. An axial adjustment mechanism is hinged to the rotating seat, and the ejector pin slides in cooperation with the guide hole.

[0015] Compared with the prior art, the utility model has the advantages of

[0016] The utility model discloses after the positioning of outer ball cage is completed, through the control horizontal adjusting mechanism removes the measurement arm and the connected protractor, makes the protractor and the outer surface contact of outer ball cage clock -shaped shell, and different height's protractor will be able to carry out coaxial degree detection to different positions in unit time, and the whole detection process does not need operating personnel repeatedly to adjust the position of outer ball cage and the percentage table, thereby greatly simplifying the detection procedure, shortening the detection time -consuming, and promote the surveying efficiency, can also reduce the detection error simultaneously, obtain more accurate detection data. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model gauge;

[0018] Figure 2 It is the A part enlarged structure schematic diagram of the utility model Figure 1 ;

[0019] Figure 3 It is the B part enlarged structure schematic diagram of the utility model Figure 1 ;

[0020] Figure 4 It is the overall structure schematic diagram of another view of the utility model gauge;

[0021] Figure 5 It is the cross section structure schematic diagram of the utility model gauge.

[0022] As shown in the figure:

[0023] 1, base;2, vertical support;201, support frame body;202, flat plate frame body;202a, rotating seat;202b, guide hole;3, chuck;4, measurement arm;401, clamping block;402, clamping hole;403, second fastening bolt;404, second washer;5, thimble;6, horizontal adjusting mechanism;601, guide block;601a, slide;602, sliding block;602a, adjusting groove;603, first fastening bolt;604, first washer;7, axial adjusting mechanism;701, handle;701a, push block;702, rotating shaft;703, limit block;704, pad. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0025] In the description of the utility model, it needs to explain, the terms "upper", "lower", "left", "right", "inner", "outer" and so on indicate the position relation or position relation based on the position relation shown in the drawing, or the position relation or position relation of the utility model product when using the usual place, just is for the convenience of simplifying the description, and is not indicate or imply that the position is the specific position and the specific position structure and operation that must have, therefore cannot be understood as the limitation to the utility model.

[0026] As Figure 1 And Figure 4 The utility model relates to a kind of vertical gauge for outer ball cage clock housing multi-point coaxiality detection, it includes base 1, vertical support 2, chuck 3, measuring arm 4, top pin 5, horizontal adjusting mechanism 6 and axial adjusting mechanism 7, wherein, vertical support 2 and chuck 3 are arranged in parallel at the top of base 1, chuck 3 is used to with the inner cavity of outer ball cage clock housing sleeve joint cooperation, make the whole outer ball cage with upside-down orientation to be supported, horizontal adjusting mechanism 6 has multiple groups, each group horizontal adjusting mechanism 6 is sequentially arranged on vertical support 2 from top to bottom, more specifically, horizontal adjusting mechanism 6 is located on the side of vertical support 2 close to chuck 3, to form front and back relative with chuck 3, measuring arm 4 is used to install dial gauge, dial gauge etc., measuring arm 4 is slidably connected with horizontal adjusting mechanism 6, the horizontal position of measuring arm 4 and the connected dial gauge can be adjusted moderately by horizontal adjusting mechanism 6, axial adjusting mechanism 7 is hinged at the top of vertical support 2, and top pin 5 is slidably fitted at the top of vertical support 2, top pin 5 can slide up and down relative to vertical support 2, and the sliding of top pin 5 is driven to realize by the rotation of axial adjusting mechanism 7, and top pin 5 is opposite up and down with chuck 3, when top pin 5 slides, it is close to or away from chuck 3, when the outer ball cage to be detected is placed on chuck 3, top pin 5 is driven to move down by axial adjusting mechanism 7, so that top pin 5 is embedded in the tail shaft of outer ball cage clock housing, and forms plug-in cooperation with tail shaft, simultaneously, the outer ball cage is pressed on chuck 3, so that the outer ball cage will be clamped up and down with chuck 3, to stably keep upside-down placement state, avoid displacement such as moving, deflection during coaxiality detection process, after the positioning of outer ball cage is completed, the dial gauge is contacted with the outer surface of outer ball cage clock housing by controlling horizontal adjusting mechanism 6 to move measuring arm 4 and the connected dial gauge, so that the dial gauge can be contacted with the outer surface of outer ball cage clock housing by controlling horizontal adjusting mechanism 6 to move measuring arm 4 and the connected dial gauge, so that the dial gauge at each different height will be able to carry out coaxiality detection at different positions in unit time, the whole detection process does not need to repeatedly adjust the position of outer ball cage and dial gauge by operating personnel, to greatly simplify detection process, shorten detection time consumption, and improve calibration efficiency, simultaneously, detection error can also be reduced, and more accurate detection data is obtained.

[0027] As Figure 3As shown, the horizontal adjustment mechanism 6 comprises a guide block 601 and a sliding block 602, the guide block 601 is connected with the vertical support 2, a sliding channel 601a is formed on the guide block 601 and arranged along the length direction of the guide block 601, the sliding block 602 is slidingly fitted in the sliding channel 601a, and the measuring arm 4 is connected with the sliding block 602, so that the horizontal position can be adjusted by moving the measuring arm 4 and the connected protractor along the sliding channel 601a through the sliding block 602.

[0028] As shown in Figure 3 , the horizontal adjustment mechanism 6 further comprises a first fastening bolt 603 and a first washer 604, an adjustment groove 602a is formed on the sliding block 602 and opposite to the sliding channel 601a, the adjustment groove 602a has the same running direction as the sliding channel 601a, the first fastening bolt 603 passes through the adjustment groove 602a to the sliding channel 601a from outside and is threadedly connected in the sliding channel 601a, and the first washer 604 is sleeved on the first fastening bolt 603, when the first fastening bolt 603 is locked, the first washer 604 will be pressed on the circumference of the adjustment groove 602a and tightly abut against the sliding block 602, so that the sliding of the sliding block 602 is limited and the sliding block 602 is kept at the adjusted position, and the measuring arm 4 and the protractor are kept at the adjusted position, and the first washer 604 can reduce the pressure on the sliding block 602 when the first fastening bolt 603 is locked, thereby protecting the sliding block 602, when the position of the protractor needs to be changed, the first fastening bolt 603 is rotated to make the first washer 604 loose, after the pressure applied by the first washer 604 is removed, the sliding block 602 can slide along the sliding channel 601a to change the position, it is to be noted that the moving distance of the sliding block 602 is determined by the length of the adjustment groove 602a, when the first fastening bolt 603 abuts against any one end of the adjustment groove 602a, the maximum moving distance will be reached, thereby preventing overtravel.

[0029] As shown in Figure 4 and Figure 5 , the axial adjustment mechanism 7 comprises a handle 701, a rotating shaft 702 and a limiting block 703, the handle 701 is hinged to the vertical support 2 through the rotating shaft 702, the limiting block 703 is arranged on the outer side wall of the plunger 5, thereby forming a stepped position with the outer side wall of the plunger 5, a push block 701a is formed on the handle 701 and embedded below the limiting block 703 and abuts against the limiting block 703, when the handle 701 is rotated, the push block 701a is synchronously rotated, when the push block 701a swings upward, the limiting block 703 will be lifted, so that the limiting block 703 will drive the plunger 5 to slide upward relative to the chuck 3, thereby increasing the distance between the plunger 5 and the chuck 3, ensuring that there is sufficient space for the outer ball cage to be detected to be placed on the chuck 3, after the placement is completed, the push block 701a is swung downward through the handle 701, and the limiting block 703 and the plunger 5 will move downward under the action of gravity, thereby being embedded with the tail shaft of the outer ball cage bell housing, so that the outer ball cage is fixed on the chuck 3.

[0030] As shown in Figure 1 , Figure 4 and Figure 5 , the axial adjusting mechanism 7 further comprises a pad 704 sleeved on the ejector pin 5 and supported by the vertical support 2, and the push block 701a of the handle 701 is embedded between the limiting block 703 and the pad 704, and the pad 704 is arranged to avoid the push block 701a directly contacting the vertical support 2, thereby avoiding abrasion of the vertical support 2 when the vertical support 2 reciprocates, so as to protect the vertical support 2.

[0031] As shown in Figure 2 , the measuring arm 4 is formed with clamping blocks 401, the clamping blocks 401 have two groups, the two clamping blocks 401 are opposite and spaced, and are allowed to be closed when subjected to pressure, the clamping blocks 401 are formed with clamping holes 402 therebetween, the clamping holes 402 are used for fixing the protractor, and the second fastening bolts 403 are threadedly connected to the clamping blocks 401, the second fastening bolts 403 pass through the clamping holes 402, the two clamping blocks 401 are pressed when the second fastening bolts 403 are tightened, so that the two clamping blocks 401 are closed, thereby reducing the diameter of the clamping holes 402, the protractor installed in the clamping holes 402 is clamped by the clamping blocks 401, and stable connection with the measuring arm 4 is achieved, and the second gasket 404 is sleeved on the second outer wall and abuts against the outer wall of the clamping block 401, so that the second gasket 404 can reduce the pressure of the clamping block 401 caused by locking of the second fastening bolt 403, thereby protecting the measuring arm 4.

[0032] Further, the number of the measuring arms 4 and the corresponding horizontal adjusting mechanisms 6 is three groups, that is, the gauge of the utility model can simultaneously detect three different positions on the outer surface of the outer ball cage bell housing in unit time, so as to further shorten the detection time and improve the detection efficiency.

[0033] As shown in Figure 1 , Figure 4 and Figure 5 , the vertical support 2 is composed of a support frame body 201 and a flat plate frame body 202, the support frame body 201 stands on the base 1, the bottom of the support frame body 201 is connected with the base 1, the flat plate frame body 202 is integrally formed with the support frame body 201, the flat plate frame body 202 is located at the top of the support frame body 201 and is opposite to the chuck 3, the horizontal adjusting mechanism 6 is fixed on the side wall of the support frame body 201 through the guide block 601, the top of the flat plate frame body 202 is formed with a rotating seat 202a and is provided with a guide hole 202b, the axial adjusting mechanism 7 is hinged to the rotating seat 202a, and the ejector pin 5 is in sliding fit with the guide hole 202b.

[0034] In combination with Figures 1 to 5When the utility model detects the coaxiality of the outer surface of the outer ball cage bell housing, first, install the protractor, the operator inserts the protractor into the clamping hole 402 of the measuring arm 4, and then tightens the second fastening bolt 403, the two clamping blocks 401 are pressed by the second fastening bolt 403, so that the two clamping blocks 401 are folded, thereby reducing the drift diameter of the clamping hole 402, the protractor installed in the clamping hole 402 will be clamped by the two clamping blocks 401, realizing stable connection with the measuring arm 4, then install the outer ball cage, the operator rotates the handle 701 of the axial adjusting mechanism 7 upwards, the push block 701a drives the limiting block 703 and the connected thimble 5 to move upwards, increasing the distance between the thimble 5 and the chuck 3, so that the outer ball cage can be placed in an inverted state on the chuck 3, and the chuck 3 is matched with the bell housing, then the handle 701 of the axial adjusting mechanism 7 is moved downwards, so that the thimble 5 moves downwards and is embedded in the tail shaft of the outer ball cage bell housing, forming a plug-in fit with the tail shaft, and the outer ball cage is pressed on the chuck 3, finally, adjust the position of the measuring arm 4, move the slider 602 along the slide 601a on the guide block 601 by controlling the horizontal adjusting mechanism 6, drive the measuring arm 4 and the connected protractor to move synchronously, until the protractor can contact the outer surface of the outer ball cage bell housing, then tighten the first fastening bolt 603, so that the slider 602 is fixed, and the measuring arm 4 and the protractor can be kept at the adjusted position, so that the protractors on the three measuring arms 4 can simultaneously detect the coaxiality in unit time.

[0035] The above embodiments and descriptions described in the specification are only to illustrate the principles and best embodiments of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A vertical testing fixture for outer ball cage bell multi-point coaxiality detection, characterized in that, It includes base (1), vertical support (2), chuck (3), measuring arm (4), top pin (5), horizontal adjustment mechanism (6) and axial adjustment mechanism (7), the vertical support (2) and chuck (3) are arranged side by side on the top of base (1), the horizontal adjustment mechanism (6) is sequentially arranged on the vertical support (2) from top to bottom, and is opposite to the chuck (3) front and back, the measuring arm (4) is slidably connected with the horizontal adjustment mechanism (6), the axial adjustment mechanism (7) is hinged on the top of vertical support (2), and the top pin (5) is slidably connected with the top of vertical support (2) and is driven by the axial adjustment mechanism (7), and is opposite to the chuck (3) up and down.

2. The vertical testing fixture for multipoint coaxiality detection of outer ball cage clock shell according to claim 1, characterized in that, The horizontal adjustment mechanism (6) includes guide block (601) and sliding block (602), the guide block (601) is connected with the vertical support (2), the guide block (601) is provided with a slide (601a), and the sliding block (602) is slidably connected in the slide (601a), and the measuring arm (4) is connected with the sliding block (602).

3. The vertical testing fixture for multipoint coaxiality detection of outer ball cage clock shell according to claim 2, characterized in that, The horizontal adjustment mechanism (6) further includes first fastening bolt (603) and first washer (604), the sliding block (602) is provided with an adjusting groove (602a), the adjusting groove (602a) is opposite to the slide (601a), the first fastening bolt (603) passes through the adjusting groove (602a) into the slide (601a) and is threadedly connected in the slide (601a), and the first washer (604) is sleeved on the first fastening bolt (603) and abuts against the circumference of the adjusting groove (602a).

4. A vertical testing fixture for multipoint coaxiality testing of an outer ball cage clock shell according to any one of claims 1 to 3, characterized in that The axial adjustment mechanism (7) includes handle (701), pivot (702) and limiting block (703), the handle (701) is hinged on the vertical support (2) through the pivot (702), the limiting block (703) is arranged on the outer side wall of the top pin (5), the handle (701) is formed with a push block (701a), and the push block (701a) is embedded below the limiting block (703).

5. A vertical testing fixture for multipoint coaxiality testing of an outer ball cage clock shell according to claim 4, characterized in that, The axial adjustment mechanism (7) further includes pad block (704), the pad block (704) is sleeved on the top pin (5) and supported by the vertical support (2), and the push block (701a) of the handle (701) is embedded between the limiting block (703) and the pad block (704).

6. A vertical testing fixture for multipoint coaxiality testing of an outer ball cage clock shell according to any one of claims 1, 2, 3 or 5, characterized in that, The measuring arm (4) is formed with clamping blocks (401), the clamping blocks (401) have two groups, the two clamping blocks (401) are spaced from each other, the clamping holes (402) are formed between the two clamping blocks (401), and the second fastening bolts (403) are threadedly connected on the two clamping blocks (401), the second fastening bolts (403) pass through the clamping holes (402), and the second washers (404) are sleeved on the outer walls of the second fastening bolts (403) and abut against the outer walls of the clamping blocks (401).

7. A vertical testing fixture for multipoint coaxiality testing of an outer ball cage clock shell according to claim 6, characterized in that, The number of the measuring arm (4) and the corresponding horizontal adjustment mechanism (6) is three groups.

8. A vertical testing fixture for multipoint coaxiality testing of an outer ball cage clock shell according to any one of claims 1, 2, 3, 5 or 7, characterized in that, The vertical support (2) comprises a support frame body (201) and a flat plate frame body (202), the bottom of the support frame body (201) is connected with the base (1), the flat plate frame body (202) is located on the top of the support frame body (201) and is opposite to the chuck (3) up and down, the horizontal adjusting mechanism (6) is arranged on the side wall of the support frame body (201), the top of the flat plate frame body (202) is formed with a rotating seat (202a) and is provided with a guide hole (202b), the axial adjusting mechanism (7) is hinged on the rotating seat (202a), and the thimble (5) is in sliding fit with the guide hole (202b).

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