Measuring tool for detecting outer circle run-out of end face of besides-star wheel

Abstract

The utility model provides a besides-star wheel end face excircle run-out detection measuring tool which comprises a base plate, a besides-star wheel placing seat is rotatably connected to the base plate, a back plate is vertically fixed on the rear side of the base plate, a horizontal support, an upper mounting plate and a lower mounting plate are connected to the surface of the back plate from top to bottom in an up-and-down adjustable mode, and a stand column cylinder is connected to the horizontal support in an inserted mode. A vertical sliding groove and a horizontal clamping groove are formed in the stand column cylinder, the vertical sliding groove and the horizontal clamping groove are communicated and communicated with a containing cavity penetrating through the bottom of the stand column cylinder in the stand column cylinder, a vertical ejector rod is tightly arranged in the containing cavity in a matched mode, and the lower end of the vertical ejector rod penetrates out of the containing cavity and extends out of the bottom face of the horizontal support. A handle located in the vertical sliding groove or the horizontal clamping groove is fixed to the upper end of the vertical ejector rod, the upper mounting plate is rotationally connected with a dial indicator through an upper connecting block and an upper supporting block, and a dial indicator is fixed to the lower mounting plate through a lower supporting block. The measuring tool can rapidly and accurately measure the flatness of the top end face of the besides-star wheel and the runout of the outer circle of the cup body.

Description

Technical Field

[0001] The utility model relates to the technical field of outer star wheels, in particular to an outer star wheel end face outer circle runout detection measuring tool. Background Art

[0002] A constant velocity joint is a universal joint with the same rotation speed for the driving shaft and the driven shaft, that is, a mechanism that connects two shafts with non-coincident axes and transmits motion at the same angular velocity. The constant velocity joint is an important component in the car transmission system. On front-wheel drive cars, the front axle is equipped with a constant velocity joint drive shaft. The constant velocity joint is used to transmit the engine power from the transmission to the car's drive wheels, meet the requirements of the outer end angle of the car's drive shaft, so as to smoothly and reliably transmit the engine power to the wheels, compensate for the bounce of the car's inner end suspension, and meet the needs of driving the car at high speed.

[0003] The outer star wheel is a main part in the constant velocity universal joint. It is a cup-shaped rotating body part with a connecting shaft. There are multiple ballways distributed on the inner wall. The function of the ballways is to complete the torque transmission with another part through steel balls. The outer star wheel is a key part in the constant velocity universal joint. The flatness of the top end face and the outer circumferential runout of the cup body are very high. If the relevant dimensions are not controlled, it will interfere with other parts during the subsequent assembly, and ultimately directly affect the assembly performance. However, the inventor of the utility model has found through research that there is currently no measuring tool that can meet the needs of the production site to measure the flatness of the top end face of the outer star wheel and the outer circumferential runout of the cup body, so there is an urgent need to solve this problem. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the utility model provides a measuring tool for detecting the outer circle runout of the end face of an outer star wheel, which can quickly and accurately measure the flatness of the top end face of the outer star wheel and the outer circle runout of the cup body.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A measuring tool for detecting the outer circle runout of an outer star wheel end face comprises a bottom plate, on which an outer star wheel placement seat can be rotatably connected, a back plate is vertically fixedly connected to the rear side of the bottom plate, the surface of the back plate can be adjusted up and down from top to bottom and is connected to a horizontal support, an upper mounting plate and a lower mounting plate, a column tube is fixedly plugged on the horizontal support, a vertical slide groove and a horizontal clamping groove are provided on the column tube, the vertical slide groove and the horizontal clamping groove are communicated and connected to a receiving cavity in the column tube that runs through the bottom of the column tube, a vertical push rod is tightly arranged in the receiving cavity, the lower end of the vertical push rod passes through the receiving cavity and extends out from the bottom surface of the horizontal support, and the lower end of the vertical push rod is provided with A pin is opposite to the central axis of the outer star wheel placement seat, and a handle is fixed to the upper end of the vertical push rod. The handle can be located in the vertical slide groove and the horizontal slot respectively as the vertical push rod moves axially or rotates horizontally in the accommodating cavity; an upper connecting block is fixed to the right side of the upper mounting plate, and the outer end of the upper connecting block is rotatably connected to the upper supporting block, and the outer end of the upper supporting block is rotatably connected to the dial indicator, and a lower supporting block is fixed to the right side of the lower mounting plate, and the outer end of the lower supporting block is movably connected to the dial indicator. In the initial state, the measuring rod head of the dial indicator is in contact with the top end face of the outer star wheel, and the measuring rod head of the dial indicator rests on the outer circular wall of the outer star wheel cup body.

[0007] Compared with the prior art, the outer circle runout detection gauge provided by the utility model, when measuring, first put the outer wheel to be measured on the outer wheel placement seat, then pull the handle in the vertical slide groove to make the vertical push rod move vertically in the accommodating cavity, let the ejector pin at the lower end of the vertical push rod hit the center of the top end face of the outer wheel, then pull the handle horizontally to make it stuck in the horizontal slot, so as to complete the placement and positioning of the outer wheel, then rotate and adjust the upper support block and the micrometer, let the measuring rod head of the micrometer hit the edge of the top end face of the outer wheel, and let the measuring rod head of the micrometer lean against the outer circular wall of the outer wheel cup body, finally manually rotate the outer wheel placement seat, read the reading on the micrometer to obtain the flatness of the top end face of the outer wheel, and at the same time subtract the maximum and minimum values ​​indicated on the micrometer to obtain the outer circle runout of the outer wheel cup body. Therefore, the outer circle runout detection gauge of the outer wheel end face is not only simple and quick to operate, but also has high measurement efficiency and measurement accuracy.

[0008] Furthermore, the outer star wheel placement seat includes a base plate fixed on the surface of the bottom plate, a support rod is fixed on the base plate, and a shelf plate is rotatably connected to the top end of the support rod.

[0009] Furthermore, two T-shaped grooves are provided on the surface of the back plate, and T-shaped sliders matching with the T-shaped grooves are provided at both ends of the bottom surfaces of the horizontal support, the upper mounting plate and the lower mounting plate. Threaded holes are provided on the horizontal support, the upper mounting plate and the lower mounting plate corresponding to the T-shaped sliders, and adjustment screws connected to the bottom of the T-shaped grooves are passed through the threaded holes.

[0010] Furthermore, a stepped hole that is larger at the top and smaller at the bottom is vertically opened on the horizontal support, the bottom of the column tube is inserted into the stepped plane of the stepped hole, and a locking screw that contacts the outer wall of the column tube is passed through the horizontal support. The diameter of the accommodating cavity in the column tube is equal to the diameter of the small hole in the stepped hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the structure of a measuring tool for detecting the outer circle runout of an outer star wheel end face.

[0012] In the figure, 1, bottom plate; 2, outer star wheel placement seat; 21, base plate; 22, support rod; 23, shelf plate; 3, back plate; 31, T-shaped slide groove; 4, horizontal support; 5, upper mounting plate; 6, lower mounting plate; 7, column tube; 71, vertical slide groove; 72, horizontal slot; 8, vertical ejector rod; 81, ejector pin; 9, handle; 10, upper connecting block; 11, upper support block; 12, micrometer; 13, lower support block; 14, dial indicator; 15, adjusting screw; 16, locking screw. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0014] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] Please refer to Figure 1As shown, the utility model provides a measuring tool for detecting the outer circle runout of the end face of an outer star wheel, comprising a base plate 1, on which an outer star wheel placement seat 2 can be rotatably connected, and a back plate 3 is vertically fixedly connected to the rear side of the base plate 1, and the surface of the back plate 3 can be adjusted up and down from top to bottom and is connected to a horizontal support 4, an upper mounting plate 5 and a lower mounting plate 6, and a column tube 7 is fixedly inserted on the horizontal support 4, and a vertical slide groove 71 and a horizontal clamping groove 72 are opened on the column tube 7, and the vertical slide groove 71 and the horizontal clamping groove 72 are communicated and connected with a receiving cavity that runs through the bottom of the column tube in the column tube 7, that is, the vertical slide groove 71 and the horizontal clamping groove 72 are not only connected to each other, but also connected with the receiving cavity inside the column tube 7, and a vertical push rod 8 is tightly arranged in the receiving cavity, and the lower end of the vertical push rod 8 passes through the receiving cavity and extends out from the bottom surface of the horizontal support 4, and the lower end of the vertical push rod 8 is arranged as if it is integrally formed with the outer star wheel placement seat 2 The central axis of the push pin 81 is relative to the central axis, and a handle 9 is fixed to the upper end of the vertical push rod 8. The handle 9 can be located in the vertical slide groove 71 and the horizontal slot 72 respectively as the vertical push rod 8 moves axially or rotates horizontally in the accommodating cavity. Specifically, when the vertical push rod 8 moves axially in the accommodating cavity, the handle 9 is located in the vertical slide groove 71, and when the vertical push rod 8 rotates horizontally in the accommodating cavity, the handle 9 is located in the horizontal slot 72; an upper connecting block 10 is fixed to the right side of the upper mounting plate 5, and the outer end of the upper connecting block 10 is rotatably connected to the upper supporting block 11, and the outer end of the upper supporting block 11 is rotatably connected to the micrometer 12, and a lower supporting block 13 is fixed to the right side of the lower mounting plate 6, and the outer end of the lower supporting block 13 is movably connected to the micrometer 14. In the initial state, the measuring rod head of the micrometer 12 is in contact with the top end face of the outer star wheel, and the measuring rod head of the micrometer 14 is against the outer circular wall of the outer star wheel cup body.

[0017] Compared with the prior art, the outer circle runout detection gauge provided by the utility model, when measuring, first put the outer wheel to be measured on the outer wheel placement seat, then pull the handle in the vertical slide groove to make the vertical push rod move vertically in the accommodating cavity, let the ejector pin at the lower end of the vertical push rod hit the center of the top end face of the outer wheel, then pull the handle horizontally to make it stuck in the horizontal slot, so as to complete the placement and positioning of the outer wheel, then rotate and adjust the upper support block and the micrometer, let the measuring rod head of the micrometer hit the edge of the top end face of the outer wheel, and let the measuring rod head of the micrometer lean against the outer circular wall of the outer wheel cup body, finally manually rotate the outer wheel placement seat, read the reading on the micrometer to obtain the flatness of the top end face of the outer wheel, and at the same time subtract the maximum and minimum values ​​indicated on the micrometer to obtain the outer circle runout of the outer wheel cup body. Therefore, the outer circle runout detection gauge of the outer wheel end face is not only simple and quick to operate, but also has high measurement efficiency and measurement accuracy.

[0018] As a specific example, please refer to Figure 1As shown, the outer planet wheel placement seat 2 includes a base plate 21 fixed on the surface of the bottom plate 1, a support rod 22 is fixed on the base plate 21, and a shelf plate 23 is rotatably connected to the top of the support rod 22. Specifically, a bearing can be fixed and inserted on the top of the support rod 22, and the center of the shelf plate 23 is sleeved on the outer ring of the bearing. Therefore, the shelf plate 23 can be rotated manually to rotate on the top of the support rod 22, thereby driving the outer planet wheel placed on the shelf plate 23 to rotate.

[0019] As a specific example, please refer to Figure 1 As shown, two T-shaped grooves 31 are provided on the surface of the back plate 3, and T-shaped sliders (not shown in the figure) matching the T-shaped grooves 31 are provided at both ends of the bottom surfaces of the horizontal support 4, the upper mounting plate 5 and the lower mounting plate 6. Threaded holes are provided on the horizontal support 4, the upper mounting plate 5 and the lower mounting plate 6 corresponding to the T-shaped sliders, and adjusting screws 15 connected to the bottom of the T-shaped grooves 31 are passed through the threaded holes. Therefore, the adjusting screws 15 are loosened, and the horizontal support 4, the upper mounting plate 5 and the lower mounting plate 6 are moved up and down to the appropriate positions, and then the adjusting screws 15 are locked, so that the horizontal support 4, the upper mounting plate 5 and the lower mounting plate 6 can be adjusted up and down on the surface of the back plate 3, thereby facilitating the measurement of the outer star wheels at different heights placed on the shelf plate 23, and the applicability is strong.

[0020] As a specific example, please refer to Figure 1 As shown, a stepped hole which is larger at the top and smaller at the bottom is vertically opened on the horizontal support 4, that is, a large hole and a small hole which are connected are opened inside the horizontal support 4 from top to bottom, and the large hole and the small hole constitute a stepped hole which is larger at the top and smaller at the bottom, and a stepped surface is formed at the connection between the large hole and the small hole, and the bottom of the column tube 7 is inserted on the stepped plane of the stepped hole, and a locking screw 16 which abuts against the outer wall of the column tube 7 is penetrated on the horizontal support 4, thereby realizing the fixed insertion of the column tube 7 on the horizontal support; the diameter of the accommodating cavity in the column tube 7 is equal to the diameter of the small hole in the stepped hole, thereby when the vertical push rod 8 moves vertically in the accommodating cavity, it can smoothly pass through the small hole and extend from the bottom surface of the horizontal support 4, effectively improving the operating feel of driving the vertical push rod 8 to move vertically by the handle 9.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A measuring tool for detecting the outer circle runout of the outer star wheel end face, characterized in that: The cam is an upright position member which is fixedly secured to the bottom of the base and has a plurality of camshafts which are adapted to engage with the upper and lower ends of the camshafts. The center axis is relative to the ejector pin, and a handle is fixed on the upper end of the vertical ejector rod, and the handle can be located in the vertical slide groove and the horizontal slot respectively as the vertical ejector rod moves axially or rotates horizontally in the accommodating cavity; an upper connecting block is fixed on the right side of the upper mounting plate, and the outer end of the upper connecting block is rotatably connected to the upper supporting block, and the outer end of the upper supporting block is rotatably connected to the dial indicator, and a lower supporting block is fixed on the right side of the lower mounting plate, and the outer end of the lower supporting block is movably connected to the dial indicator, and in the initial state, the measuring rod head of the dial indicator is in contact with the top end face of the outer star wheel, and the measuring rod head of the dial indicator rests on the outer circular wall of the outer star wheel cup body.

2. The outer planet wheel end face outer circle runout detection measuring tool according to claim 1, characterized in that: The outer star wheel placement seat comprises a base plate fixed on the surface of the bottom plate, a support rod is fixed on the base plate, and a shelf plate is rotatably connected to the top end of the support rod.

3. The outer planet wheel end face outer circle runout detection measuring tool according to claim 1, characterized in that: Two T-shaped slide grooves are provided on the surface of the back plate, and T-shaped sliders matching with the T-shaped slide grooves are provided at both ends of the bottom surfaces of the horizontal support, upper mounting plate and lower mounting plate. Threaded holes are provided on the horizontal support, upper mounting plate and lower mounting plate corresponding to the T-shaped sliders, and adjustment screws connected to the bottom of the T-shaped slide grooves are passed through the threaded holes.

4. The outer planet wheel end face outer circle runout detection measuring tool according to claim 1, characterized in that: A stepped hole with a larger top and a smaller bottom is vertically opened on the horizontal support, the bottom of the column tube is inserted into the stepped plane of the stepped hole, the horizontal support is penetrated by a locking screw that contacts the outer wall of the column tube, and the diameter of the accommodating cavity in the column tube is equal to the diameter of the small hole in the stepped hole.

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