Pulley size detection device

Abstract

The invention discloses a pulley size detection device, including a support frame, a pulley fixing device to be measured and a size measuring device are arranged on the support frame, the pulley fixing device to be measured includes a base with a rotating flange and an elastic push rod clamping the outer edge of the pulley to be measured and sticking to the inner diameter of the pulley to be measured, the center hole of the pulley to be measured is sleeved on the flange, and the flange is connected to the base rotating pair; the size measuring device includes a size measuring set unit composed of each elastic push rod and a sensor arranged on the elastic push rod, the sensor is in contact with the pulley to be measured part and is externally connected to a data converter, and the data converter is connected to an electronic display. The structure is simple, the cost is low, the pulley size index can be quickly detected, the pulley processing accuracy is improved, the efficiency is high, and the requirements for supporting the production of automotive parts can be met.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to a pulley size detection device. Background Art

[0002] With the rapid development of industrial manufacturing and the advancement of mechanical technology in my country, competition in the processing field has become increasingly fierce. The processing industry has entered an era of low profits. This situation forces the processing industry to continuously innovate and improve. Producing high-quality products has become a trend of industrial development. However, the production of these fine products must have more detection technologies and control methods to ensure product quality. This important method must start from the raw materials to strictly control the geometric accuracy of parts, so as to ensure the quality of finished products and improve the competitiveness of enterprises in the market. In the production process of automobile engine pulleys, in order to control product quality, precision testing must be carried out. Professional outsourced inspection equipment is expensive. For this reason, various inspection fixtures need to be specially designed to be able to quickly check the various precisions of pulleys. Wheel-shaped and disc-shaped workpieces are widely used in mechanical equipment. In equipment with higher precision requirements, the processing accuracy of such workpieces is often required to be high, especially when it comes to transmission accuracy and the runout accuracy of mating surfaces. See Figure 1 and Figure 2 As shown, the pulley generally includes an input end 1 and a pulley 2. The input end 1 is arranged at the lower end of the pulley 2. The upper surface of the pulley is a conical structure, namely, a pulley conical surface 3. The side surface of the pulley is two cylindrical surfaces with increasing outer diameters. A first groove 4 is arranged between the two cylindrical surfaces. The lower end surface of the pulley is provided with an upward second circular groove 5. The groove bottom of the second circular groove is the pulley groove bottom surface 6. The lower end surface of the input end 1 is the input end surface 7. The center of the input end 1 and the pulley 2 is a communicating center hole 8. The inert pulley is one of the common transmission parts. When the equipment is used, the end face runout accuracy and radial runout accuracy are required to be high. In the prior art, the end face runout and radial runout of the pulley cannot be detected at the same time, so that the detection process is complicated and the detection cycle is long. The State Intellectual Property Office also disclosed an inert pulley jump detection device (CN106595544A), including a support frame and a loading device, a lifting device, a rotating device and a measuring device installed on the support frame, wherein: the loading device includes a motor, a transmission wheel, a driven wheel, a transmission belt and a limit part, the transmission belts are arranged in two parallel rows, and the parallel spacing is greater than the diameter of the pulley hole to be detected; the limit part is a feed limit part and a discharge limit part, and the feed limit part and the discharge limit part include two groups of limit cylinders that are respectively arranged on the two rows of transmission belts and are linearly opposite to each other. Summary of the invention

[0003] The invention provides a pulley size detection device which has a simple structure, low cost, can quickly detect multiple size indicators of a pulley, and improves the processing accuracy of the pulley.

[0004] The present invention is achieved through the following technical solutions:

[0005] The pulley size detection device comprises a support frame, on which a pulley fixing device to be measured and a size measuring device are arranged, the pulley fixing device to be measured comprises a base with a rotating flange and an elastic push rod which clamps the outer edge of the pulley to be measured inside and sticks to the inner diameter of the pulley to be measured outside, the center hole of the pulley to be measured is sleeved on the flange, and the flange is connected to the rotating pair of the base; the size measuring device comprises a size measuring set unit composed of each elastic push rod and a sensor arranged on the elastic push rod, the sensor is in contact with the part of the pulley to be measured and is externally connected to a data converter, and the data converter is connected to an electronic display.

[0006] The support frame is also provided with a limit block and a slide rail, the slide rail is provided with a sliding plate, the sliding plate is connected to a connecting rod handle, the sliding plate is provided with a longitudinal extension arm, the longitudinal extension arm is provided with a dimension measurement set unit, and the limit block limits the maximum displacement of the sliding plate on the slide rail.

[0007] The longitudinal extension arm is provided with three sets of dimension measuring units, wherein the sensors in one set of dimension measuring units can contact the end face of the input end, and the sensors in the other two sets of dimension measuring units can contact two selected points on the conical surface of the pulley.

[0008] The support frame is provided with two sets of dimension measuring complete sets of units, two elastic push rods are arranged facing each other and clamp the outer edge of the side of the pulley, and the sensor arranged on the elastic push rod is in contact with the maximum outer diameter of the side of the pulley.

[0009] The support frame is provided with two sets of dimension measuring complete sets of units, two elastic push rods are arranged facing each other and clamp the outer edge of the input end, and the sensor arranged on the elastic push rod is in contact with the outer diameter of the input end.

[0010] The support frame is provided with two sets of dimension measuring complete sets of units, two elastic push rods are arranged back to back and attached to the inner wall of the second circular groove, and the sensors arranged on the elastic push rods are in contact with the inner wall of the second circular groove.

[0011] The base is provided with a size measuring set unit, the elastic push rod is an elastic telescopic rod vertically arranged on the base and installed in the sleeve, and the sensor arranged on the elastic telescopic rod contacts the bottom surface of the pulley groove.

[0012] The elastic telescopic rods are evenly distributed relative to the bottom surface of the pulley groove, and the number of the elastic telescopic rods is 1-3.

[0013] Two sets of dimension measuring units are arranged in the rotating flange, two elastic push rods are arranged back to back and attached to the inner wall of the center hole, and sensors arranged on the elastic push rods are in contact with the inner wall of the center hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention can detect a certain dimension index of the pulley alone, or can detect multiple dimension indexes of the pulley at the same time;

[0016] 2. The center hole of the pulley to be tested of the present invention is sleeved on the flange, and the flange is connected to the base rotating pair so that the pulley to be tested is vertically arranged and can be manually rotated along the pulley axis, so that the multi-point dynamic detection of the pulley conical surface can be quickly performed to improve the conical surface processing accuracy;

[0017] 3. The present invention has a simple structure, low cost, can quickly detect pulley size indicators, improve pulley processing accuracy, has high efficiency, and can meet the supporting requirements of automobile parts production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a pulley to be tested in an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A cross-sectional view of

[0020] Figure 3 is a schematic structural diagram of a pulley size detection device according to an embodiment of the present invention;

[0021] Figure 4 It is a partial perspective enlarged structural schematic diagram of a pulley size detection device according to an embodiment of the present invention.

[0022] Serial numbers in the figure: 1, input end, 2, pulley, 3, pulley cone, 4, first groove, 5, second circular groove, 6, pulley groove bottom, 7, input end face, 8, center hole, 9, support frame, 10, flange, 11, base, 12, elastic push rod, 13, sensor, 14, data converter, 15, electronic display, 16, slide rail, 17, slide plate, 18, connecting rod handle, 19, longitudinal extension arm, 20, elastic telescopic rod, 21, sleeve. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0024] Example:

[0025] See also Figure 3 and Figure 4As shown, a pulley size detection device comprises a support frame 9, on which a pulley fixing device to be measured, a size measuring device, a limit block and a slide rail 16 are arranged, the pulley fixing device to be measured comprises a base 11 with a rotating flange 10 and an elastic push rod 12 which clamps the outer edge of the pulley to be measured and is attached to the inner diameter of the pulley to be measured, the center hole 8 of the pulley to be measured is sleeved on the flange 10, and the flange 10 is connected to the base 11 in a rotating pair; the size measuring device comprises a size measuring set unit composed of each elastic push rod 12 and a sensor 13 arranged on the elastic push rod 12, and the sensor 13 is connected to the pulley to be measured. The data converter 14 is connected to an electronic display 15; the slide rail 16 is provided with a sliding plate 17, the sliding plate 17 is connected to a connecting rod handle 18, the sliding plate 17 is provided with a longitudinal extension arm 19, and the longitudinal extension arm 19 is provided with three sets of dimension measurement units, one of which has a sensor 13 in a set of dimension measurement units that can contact the input end face 7, and the other two sets of sensors 13 in the set of dimension measurement units that can contact two selected points on the pulley cone surface 3, and the limit block limits the maximum displacement of the sliding plate 17 on the slide rail 16; Six sets of dimension measurement complete units are arranged on the support frame 9, wherein the two elastic push rods 12 in two sets of dimension measurement complete units are arranged facing each other and clamp the outer edge of the side of the pulley, and the sensor 13 arranged on the elastic push rod 12 is in contact with the maximum outer diameter of the side of the pulley, and the two elastic push rods 12 in two sets of dimension measurement complete units are arranged facing each other and clamp the outer edge of the input end 1, and the sensor 13 arranged on the elastic push rod 12 is in contact with the outer diameter of the input end 1, and the two elastic push rods 12 in the other two sets of dimension measurement complete units are arranged back to back and adhere to the inner wall of the second circular groove 5, and the sensor 13 arranged on the elastic push rod 12 The sensor 13 is in contact with the inner wall of the second circular groove 5; two sets of dimension measurement units are arranged on the base 11, and the elastic push rod is an elastic telescopic rod 20 vertically arranged on the base 11 and installed in the sleeve 21, and the elastic telescopic rod 20 is evenly arranged relative to the bottom surface 6 of the pulley groove, and the sensor 13 arranged on the elastic telescopic rod 20 is in contact with the bottom surface 6 of the pulley groove; two sets of dimension measurement units are arranged in the rotating flange 10, and the two elastic push rods 12 are arranged back to back and attached to the inner wall of the center hole 8, and the sensor 13 arranged on the elastic push rod 12 is in contact with the inner wall of the center hole 8.

[0026] The present invention can detect a certain dimension index of the pulley separately, and can also detect multiple dimension indexes of the pulley at the same time. It can detect the outer diameter of the input end 1, the outer edge of the pulley side, the inner diameter of the second circular groove 5 and the inner diameter of the center hole 8; it can detect relevant height indicators based on the input end face 7, the bottom surface 6 of the pulley groove and the selected points on the pulley cone surface 3; the center hole of the pulley to be tested of the present invention is sleeved on the flange, and the flange is connected to the base rotation pair so that the pulley to be tested is vertically arranged and can be manually rotated along the axis of the pulley, and can quickly perform multi-point dynamic detection on the pulley cone surface to improve the cone surface processing accuracy; the present invention has a simple structure, low cost, can quickly detect the pulley size index, improve the pulley processing accuracy, has high efficiency, and can meet the supporting requirements of automobile parts production.

[0027] The embodiments are only for facilitating the understanding of the technical solutions of the present invention and do not constitute a limitation on the protection scope of the present invention. Any simple modification, equivalent changes and modifications made to the above solutions without departing from the contents of the technical solutions of the present invention or based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A pulley size detection device, the pulley comprising an input end (1), the input end (1) being arranged at the lower end of the pulley, the upper surface of the pulley being a pulley conical surface (3), the side surface of the pulley being two cylindrical surfaces with increasing outer diameters, a first groove (4) being arranged between the two cylindrical surfaces, the lower end surface of the pulley being provided with an upward second circular groove (5), the groove bottom of the second circular groove (5) being the pulley groove bottom surface (6), the lower end surface of the input end (1) being the input end end surface (7), the center of the input end (1) and the pulley being a communicating center hole (8), the pulley size detection device comprising a support frame (9), the support frame being provided with a pulley fixing device to be measured and a size measuring device, characterized in that The pulley fixing device to be measured comprises a base (11) with a rotating flange (10) and an elastic push rod (12) which clamps the outer edge of the pulley to be measured and is attached to the inner diameter of the pulley to be measured. The center hole (8) of the pulley to be measured is sleeved on the flange (10). The flange (10) is connected to the base (11) by a rotating pair. The size measuring device comprises a size measuring set consisting of each elastic push rod (12) and a sensor (13) arranged on the elastic push rod (12). The sensor (13) contacts the part of the pulley to be measured and is externally connected to a data converter (14). The data converter (14) is connected to an electronic display (15). The support frame (9) is also provided with a limit block and a slide rail (16). The slide rail (16) is provided with a sliding plate (17). The sliding plate (17) is connected to a connecting rod handle (18). The sliding plate (17) is provided with a longitudinal extension arm (19). The longitudinal extension arm (19) is provided with a size measuring set. The limit block limits the maximum displacement of the sliding plate (17) on the slide rail (16); The longitudinal extension arm (19) is provided with three sets of dimension measuring units, wherein the sensor (13) in one set of dimension measuring units contacts the input end face (7), and the sensors (13) in the other two sets of dimension measuring units contact two selected points on the pulley conical surface (3); The support frame (9) is provided with two sets of dimension measuring complete units, wherein two elastic push rods (12) of the two sets of dimension measuring complete units are arranged facing each other and clamp the outer edge of the side of the pulley, and the sensor (13) arranged on the elastic push rod (12) is in contact with the maximum outer diameter of the side of the pulley; The base (11) is provided with a dimension measurement unit, the elastic push rod is an elastic telescopic rod (20) vertically arranged on the base (11) and installed in a sleeve (21), and the sensor (13) arranged on the elastic telescopic rod (20) is in contact with the bottom surface (6) of the pulley groove; Two sets of dimension measuring units are arranged in the rotating flange (10), two elastic push rods (12) are arranged in back to back and are attached to the inner wall of the center hole (8), and the sensor (13) arranged on the elastic push rod (12) is in contact with the inner wall of the center hole (8).

2. The pulley size detection device according to claim 1, characterized in that The support frame (9) is also provided with two sets of dimension measurement units, two elastic push rods (12) are arranged facing each other and clamp the outer edge of the input end (1), and the sensor (13) arranged on the elastic push rod (12) is in contact with the outer diameter of the input end (1).

3. The pulley size detection device according to claim 1 or 2, characterized in that The support frame (9) is also provided with two sets of dimension measuring units, the two elastic push rods (12) are arranged in back-to-back relation and are attached to the inner wall of the second circular groove (5), and the sensor (13) arranged on the elastic push rod (12) is in contact with the inner wall of the second circular groove (5).

4. The pulley size detection device according to claim 1, characterized in that The elastic telescopic rods (20) are evenly distributed relative to the bottom surface (6) of the pulley groove, and the number of the elastic telescopic rods (20) is 1-3.

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