A device for detecting the taper of a conical surface

Abstract

The application discloses a conical surface taper detection device, and relates to the technical field of taper detection equipment. The conical surface taper detection device comprises a base, a fixing assembly, a standard block, a first detection assembly and a second detection assembly. The fixing assembly is used for fixing a workpiece and comprises a first sliding rail and two oppositely arranged ejector pins. The two ejector pins are slidably arranged on the first sliding rail, and the first sliding rail is provided with a scale along the connecting direction of the two ejector pins. The standard block is sleeved on the outside of one ejector pin. The first detection assembly is used for detecting the taper of the workpiece and comprises a second sliding rail, a supporting piece and two micrometers. One end of the second sliding rail is rotatably arranged on the base, the supporting piece is slidably arranged on the second sliding rail, and the micrometers are adjustably arranged on the supporting piece and used for detecting the taper angle of the workpiece. The second detection assembly is used for reading the rotation angle of the second sliding rail. The fixing assembly and the supporting piece are arranged on the base. The detection device is simple to operate, the detection result is accurate, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of taper detection equipment, and more particularly to a conical surface taper detection device. BACKGROUND

[0002] After the production of a workpiece is completed, it is usually necessary to measure whether the conical surface of the workpiece meets the tolerance requirement. A common method is to use a calibration ring gauge to apply red paint on the conical surface to be measured of the workpiece, and then to determine whether the taper is qualified by observing and calculating the proportion of the colored area after the calibration ring gauge is removed. This method is prone to cause uneven thickness when applying the red paint, and the calculation result of the proportion of the colored area has a large error, resulting in low precision of the detection method.

[0003] In view of the above, how to reduce the measurement error is a problem to be solved by the technical personnel in the field. SUMMARY

[0004] Therefore, the present application aims to provide a conical surface taper detection device which is simple to operate, accurate in detection result, and suitable for detecting the conical surface of a workpiece such as a cone or a circular truncated cone.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions.

[0006] A conical surface taper detection device comprises:

[0007] a base;

[0008] a first fixing assembly for fixing a workpiece, comprising a first sliding rail and two oppositely arranged thimbles, the two thimbles being slidably arranged on the first sliding rail, and the first sliding rail being provided with a scale along the direction of the line connecting the two thimbles;

[0009] a standard block which is sleeved on the outside of one of the thimbles;

[0010] a first detection assembly for detecting the taper of the workpiece, comprising a second sliding rail, a support and two micrometers, one end of the second sliding rail being rotatably arranged on the base, the support being slidably arranged on the second sliding rail, and the micrometers being adjustably arranged on the support for detecting the taper angle of the workpiece;

[0011] a second detection assembly for reading the rotation angle of the second sliding rail;

[0012] The first fixing assembly and the first detection assembly are both arranged on the base.

[0013] Preferably, the first fixing assembly further comprises two mounting members and two first lead screws, the two top pins are fixed to the corresponding mounting members, the mounting members are slidably arranged on the first sliding rail, and the first lead screws are movably arranged on the mounting members and used for fixing or loosening the mounting members.

[0014] Preferably, the second detection assembly is a digital angle gauge, and the digital angle gauge is arranged on the second sliding rail.

[0015] Preferably, the first detection assembly further comprises a rotating shaft and a second lead screw, one end of the second sliding rail is rotatably arranged on the base through the rotating shaft, and the second lead screw is movably arranged at the end of the second sliding rail to make the second lead screw abut or move away from the rotating shaft.

[0016] Preferably, the first detection assembly further comprises two support rods and a second fixing assembly used for fixing the support rods.

[0017] One end of each of the two support rods is slidably arranged on the support member, and the sliding direction of the support rod is the length direction of the second sliding rail and a direction perpendicular to the length direction of the second sliding rail.

[0018] The other end of the support rod is fixedly connected with the tail part of the corresponding micrometer.

[0019] Preferably, the support member has a through slot in the length direction of the second sliding rail, and the support member is provided with a plurality of first through holes penetrating through the through slot.

[0020] The support rod is provided with a plurality of second through holes in the length direction.

[0021] The second fixing assembly is two rod-shaped structures, and the rod-shaped structures can be inserted into the corresponding first through holes and the corresponding second through holes.

[0022] Preferably, the support member comprises a base in sliding cooperation with the second sliding rail and a mounting seat used for supporting the micrometer, the mounting seat is detachably connected with the base, at least two mounting seats are arranged on the base in a replaceable manner, and the micrometers arranged on different mounting seats have different heights.

[0023] Preferably, the top surface of the base has an arc-shaped sliding groove, and the bottom of the other end of the second sliding rail has a convex structure capable of sliding in cooperation with the sliding groove.

[0024] Preferably, the bottom of the convex structure is provided with rotatable balls.

[0025] Preferably, the micrometer is a dial gauge.

[0026] The base supports a first fixing assembly, a first detection assembly, a second detection assembly, etc. The needle heads of the two top pins in the first fixing assembly are opposite, so that the workpiece can be fixed by being clamped at both ends. The two top pins can slide along the length direction of the first slide rail, so that the distance between the two top pins can be adjusted to enable the workpiece to be fixed between the two top pins. The first slide rail is provided with a scale along the length direction, so that the length of the workpiece can be read by an operator. The standard block is a cylindrical structure, and the hole or groove in the middle of the standard block can accommodate the insertion of the needle head of the top pin. The standard block with a diameter equal to the diameter of the outer circle of the small-diameter end of the workpiece is selected. The second slide rail in the first detection assembly can be in a parallel position with the first slide rail when rotating around one end. A support is arranged on the second slide rail, and the support is used to support and fix the micrometer. The relative position between the micrometer and the support can be adjusted, so that the head of the micrometer can be in contact with the circumferential surface of the workpiece while the micrometer moves along the rotatable second slide rail with the support, and the axis of the head of the micrometer is perpendicular to the axis of the workpiece. The second detection assembly is used to detect the rotation angle of the second slide rail.

[0027] In use, a standard block is sleeved on one of the two jacks, the positions of the two jacks are adjusted in advance, the workpiece is placed between the two jacks, the two jacks are adjusted again to be close to each other, until the jacks and the standard block abut against the centers of the two ends of the workpiece, and the small-diameter end of the workpiece is close to the standard block, so as to clamp the workpiece; first, the axial length L of the conical surface of the workpiece can be read through the scale; second, the second slide rail is rotated to be parallel to the first slide rail, the heads of the two micrometers are adjusted again to abut against the peripheral surface of the standard block, and the two micrometers are zero-set to keep the distance between the heads of the two micrometers and the standard block unchanged; the support member drives the two micrometers to slide along the second slide rail, so that the needle head of the left micrometer abuts against the small-diameter end of the conical surface of the workpiece, and the right micrometer keeps abutting against the peripheral surface of the standard block; the deflection value of the head of the left micrometer is read, and the deflection value and the diameter of the standard block are used for calculation, so as to obtain the radial outside diameter of the small-diameter end of the workpiece; compared with the tolerance range required by the drawing, whether the radial outside diameter of the small-diameter end of the conical surface of the workpiece is qualified can be determined; finally, the second detection assembly is zero-set or the initial value thereof is read, the support member is adjusted again to drive the two micrometers to slide along the second slide rail, so that the needle heads of the two micrometers abut against the conical surface of the workpiece, the second slide rail is rotated, until the readings of the heads of the two micrometers are equal, that is, the rotation of the second slide rail is stopped, and the value of the second detection assembly is read; the above-mentioned operations of adjusting the support member, rotating the second slide rail and reading the value of the second detection assembly can be repeated for multiple times; in addition, the workpiece can be adjusted to rotate around the rotation shaft thereof, and the above-mentioned operations of adjusting the support member, rotating the second slide rail and reading the value of the second detection assembly can be performed for multiple times, so as to obtain multiple sets of angle values of the second slide rail, that is, the taper angle of the conical surface of the workpiece; the value is compared with the inverse tangent value corresponding to half of the taper of the conical surface calculated according to the drawing, to determine whether the taper angle of the workpiece is qualified. The detection device compares the axial length L of the conical surface of the workpiece read by the scale, the small-diameter size of the conical surface of the workpiece read by the dial gauge, and the taper angle of the conical surface of the workpiece obtained according to the second detection assembly with the standard size required by the drawing, and whether the taper of the conical surface of the workpiece is qualified can be determined according to whether the above-mentioned three parameters are qualified, the operation is simple, the detection result is accurate, and the detection device is suitable for detecting the conical surface of a workpiece such as a cone or a circular truncated cone. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, below will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without any creative effort.

[0029] Figure 1 The structural schematic diagram of the specific embodiment provided by the present application;

[0030] Figure 2 A top view of a specific embodiment provided by the present application;

[0031] Figure 3 A partial enlarged schematic view of a specific embodiment provided by the present application;

[0032] Figure 4 A schematic view of a convex structure and a ball provided by a specific embodiment of the present application;

[0033] Figure 5 A schematic view of a workpiece conical section provided by a specific embodiment of the present application.

[0034] Figures 1-5 In the drawings, reference signs include:

[0035] 1 is a base, 11 is a sliding groove, 2 is a first fixing assembly, 21 is a first sliding rail, 22 is a thimble, 23 is a mounting piece, 24 is a first lead screw, 3 is a standard block, 4 is a first detection assembly, 41 is a second sliding rail, 411 is a convex structure, 412 is a ball, 42 is a support piece, 421 is a through slot, 422 is a first through hole, 423 is a base, 424 is a mounting seat, 43 is a micrometer, 44 is a rotating shaft, 45 is a second lead screw, 46 is a support rod, 461 is a second through hole, 47 is a second fixing assembly, 5 is a second detection assembly, 6 is a scale, and 7 is a workpiece. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] The core of the present application is to provide a conical surface taper detection device, which is simple to operate, accurate in detection result, and suitable for detecting the conical surface of a workpiece such as a cone and a truncated cone.

[0038] Please refer to Figures 1 to 5This invention provides a device for detecting the taper of a conical surface, comprising a base 1, a first fixing component 2, a standard block 3, a first detection component 4, and a second detection component 5. The first fixing component 2 is used to fix a workpiece 7, including a first slide rail 21 and two opposing ejector pins 22. The two ejector pins 22 are slidably mounted on the first slide rail 21, and a scale 6 is provided on the first slide rail 21 along the line connecting the two ejector pins 22. The standard block 3 is sleeved on the outside of one ejector pin 22. The first detection component 4 is used to detect the taper of the workpiece 7, including a second slide rail 41, a support member 42, and two micrometers 43. One end of the second slide rail 41 is rotatably mounted on the base 1, the support member 42 is slidably mounted on the second slide rail 41, and the micrometers 43 are adjustablely mounted on the support member 42 for detecting the taper angle of the workpiece 7. The second detection component 5 is used to read the rotation angle of the second slide rail 41. Both the first fixing component 2 and the first detection component 4 are mounted on the base 1.

[0039] Specifically, such as Figure 1 As shown, the base 1 supports the first fixing component 2, the first detection component 4, the second detection component 5, etc.; the needles of the two ejector pins 22 in the first fixing component 2 are opposite each other, so that they can be pressed against the two ends of the workpiece 7 to fix it. The two ejector pins 22 can slide along the length direction of the first slide rail 21, so the distance between the two ejector pins 22 can be adjusted to fix the workpiece between the two ejector pins 22. The first slide rail 21 is provided with a scale 6 along its length direction. Optionally, the scale can be evenly drawn on the side of the first slide rail 21 as the scale 6, or a sticker with the scale 6 can be pasted on the first slide rail 21, so that the operator can read the length of the workpiece 7; the standard block 3 is a cylindrical structure. The hole or groove in the middle of the standard block 3 can accommodate the insertion of the needle of the ejector pin 22. The standard block 3 is selected with the same radial outer diameter as the small diameter end of the workpiece 7.

[0040] The second slide rail 41 in the first detection component 4 can be parallel to the first slide rail 21 when rotating around one end. A support member 42 is provided on the second slide rail 41. The support member 42 can be a support with its bottom embedded in the second slide rail 41, or a support with a bottom groove that can fit against the side of the second slide rail 41. The support member 42 is used to support and fix the micrometer 43, and the relative position between the micrometer 43 and the support member 42 can be adjusted so that the head of the micrometer 43 can contact the circumferential surface of the workpiece 7 while the micrometer 43 moves along the rotatable second slide rail 41 with the support member 42. By adjustment, the heads of the two micrometers 43 can always be coplanar, and the plane on which the two micrometers 43 are located is a horizontal plane. The second detection component 5 is used to detect the rotation angle of the second slide rail 41. It can be realized that an arc-shaped scale 6 is drawn on the base 1 near the other movable end of the second slide rail 41.

[0041] In use, a standard block 3 is sleeved on one of the two pins 22, the positions of the two pins 22 are adjusted in advance, the workpiece 7 is placed between the two pins 22, the two pins 22 are adjusted again to be close to each other, until the pins 22 and the standard block 3 abut against the centers of the two ends of the workpiece 7, and the small-diameter end of the workpiece 7 is close to the standard block 3, so as to clamp the workpiece 7; first, the axial length L of the conical surface of the workpiece 7 can be read through the scale 6; second, the second slide rail 41 is rotated to be parallel to the first slide rail 21, the heads of the two micrometers 43 are adjusted to abut against the peripheral surface of the standard block 3, and the two micrometers 43 are zero-set, so that the distances between the heads of the two micrometers 43 and the standard block 3 remain unchanged, the support 42 drives the two micrometers 43 to slide along the second slide rail 41, so that the needle head of the left micrometer 43 abuts against the small-diameter end of the conical surface of the workpiece 7, and the right micrometer 43 remains abutting against the peripheral surface of the standard block 3, the deflection value of the head of the left micrometer 43 is read, and the deflection value and the diameter of the standard block are used for calculation, so as to obtain the radial outside diameter of the small-diameter end of the workpiece 7, and the radial outside diameter of the small-diameter end of the workpiece 7 is compared with the tolerance range required by the drawing, so as to determine whether the radial outside diameter of the small-diameter end of the workpiece 7 is qualified; finally, the second detection assembly 5 is zero-set or the initial value thereof is read, the support 42 is adjusted to drive the two micrometers 43 to slide along the second slide rail 41, so that the needle heads of the two micrometers 43 abut against the conical surface of the workpiece 7, the second slide rail 41 is rotated until the readings of the heads of the two micrometers 43 are equal, that is, the rotation of the second slide rail 41 is stopped, the value of the second detection assembly 5 is read, and the above-mentioned operations of adjusting the support 42, rotating the second slide rail 41 and reading the value of the second detection assembly 5 can be repeated multiple times, and the workpiece 7 can be adjusted to rotate around the rotation shaft thereof, and the above-mentioned operations of adjusting the support 42, rotating the second slide rail 41 and reading the value of the second detection assembly 5 can be performed multiple times, so as to obtain multiple sets of angle values of the second slide rail 41, that is, the taper angle of the conical surface of the workpiece 7, and the taper angle of the workpiece 7 is compared with the inverse tangent value corresponding to half of the taper of the conical surface calculated according to the drawing, so as to determine whether the taper angle of the workpiece 7 is qualified.

[0042] It should be noted that the calculation formula of the inverse tangent value corresponding to half of the taper of the conical surface calculated according to the drawing is Y=arctan(D-d) / 2L1, wherein D refers to the large-diameter size of the conical surface of the workpiece 7, d refers to the small-diameter size of the conical surface of the workpiece 7, and L1 refers to the generatrix length of the conical surface of the workpiece 7; according to the large-diameter tolerance size [D1, D2] of the conical surface of the workpiece 7 given in the drawing and the small-diameter tolerance size [d1, d2] of the conical surface of the workpiece 7 given in the drawing, the tolerance value [Y1, Y2] of Y can be calculated.

[0043] The detection device compares the axial length L of the conical surface of the workpiece 7 read according to the scale 6, the small diameter size of the conical surface of the workpiece 7 read by the dial gauge, and the taper angle of the conical surface of the workpiece 7 obtained according to the second detection assembly 5 with the standard size required by the drawing, and the workpiece 7 is determined to be qualified if the above three parameters are qualified. The operation is simple, the detection result is accurate, and the device is suitable for detecting the conical surface of the workpiece 7 such as a cone and a truncated cone.

[0044] On the basis of the above embodiment, the first fixing assembly 2 further comprises two mounting members 23 and two first lead screws 24, the two ejector pins 22 are fixed to the corresponding mounting members 23, the mounting members 23 are slidably arranged on the first sliding rail 21, and the first lead screws 24 are movably arranged on the mounting members 23 and used for fixing or loosening the mounting members 23.

[0045] Specifically, as shown in Figure 1 and Figure 2 , the mounting member 23 is used for supporting the ejector pin 22, and the first lead screw 24 is used for fixing the position of the mounting member 23, i.e., fixing the position of the ejector pin 22. Optionally, the support member 42 can adopt a support with a bottom capable of being embedded in the first sliding rail 21, or a support with a bottom groove capable of being attached to the side surface of the first sliding rail 21, etc. The ejector pin 22 is located on the opposite side of the two support members 42. The other side of the support member 42 is provided with a through hole, and the inner wall of the through hole has an internal thread capable of cooperating with the external thread of the first lead screw 24. Thus, after the first lead screw 24 is inserted into the through hole, it can abut against the side surface of the first sliding rail 21, so as to fix the mounting member 23. When the position of the mounting member 23 needs to be adjusted, the first lead screw 24 can be loosened. In this way, the structure is simple, the position of the ejector pin 22 can be effectively prevented from moving randomly, and the adjustment is convenient.

[0046] On the basis of the above embodiment, the second detection assembly is a digital angle gauge, and the digital angle gauge is arranged on the second sliding rail 41. Specifically, as shown in Figure 1 and Figure 2 , the digital angle gauge is arranged on the second sliding rail 41 as the second detection assembly, so as to make the detection result more accurate and convenient to read.

[0047] On the basis of the above embodiment, the first detection assembly 4 further comprises a rotating shaft 44 and a second lead screw 45. One end of the second sliding rail 41 is rotatably arranged on the base 1 through the rotating shaft 44, and the second lead screw 45 is movably arranged at the end of the second sliding rail 41, so as to abut against or move away from the rotating shaft 44.

[0048] Specifically, as shown in Figure 1 and Figure 2As shown, the rotating shaft 44 is a cylindrical structure, and has a through hole at the end of the second sliding rail 41 where rotation is needed, which can accommodate the rotating shaft 44. The rotating shaft 44 is in clearance fit or transition fit with the second sliding rail 41, so that the second sliding rail 41 can rotate relative to the rotating shaft 44, and the bottom of the rotating shaft 44 is fixedly connected with the base 1. The second sliding rail 41 has another through hole at the end where the rotating shaft 44 is arranged, which is in communication with the through hole accommodating the rotating shaft 44. The second screw rod 45 is inserted into the through hole and is in threaded connection with the through hole, until the second screw rod 45 abuts against the rotating shaft 44. At this time, the center line of the second screw rod 45 and the center line of the rotating shaft 44 have a non-zero included angle, so that the second sliding rail 41 is fixed. When the second sliding rail 41 needs to rotate, the second screw rod 45 is loosened to move away from the rotating shaft 44. In this way, the structure is simple, the position of the second sliding rail 41 is effectively prevented from moving at will, and adjustment is facilitated.

[0049] On the basis of the above embodiment, the first detection assembly 4 further comprises two support rods 46 and a second fixing assembly 47 for fixing the support rods 46. One end of each of the two support rods 46 is slidably arranged on the support member 42, and the sliding direction of the support rod 46 is the length direction of the second sliding rail 41 and the direction perpendicular to the length direction of the second sliding rail 41. The other end of the support rod 46 is fixedly connected with the tail end of the corresponding micrometer 43, and the support rod 46 is arranged in line with the micrometer 43, and the length direction of the support rod 46 is perpendicular to the length direction of the second sliding rail 41.

[0050] Specifically, the support rod 46 of the first detection assembly 4 is a straight rod structure, and one end of the support rod 46 is fixedly connected with the tail end of the micrometer 43, which can be connected by welding or any other connection method, so that the needle of the micrometer 43 is in line with the support rod 46. A guide rail is arranged on the support member 42 to guide the sliding of the other end of the support rod 46. It can be achieved that the support member 42 is provided with a fence type guide rail, and a vertical guide rail is arranged to pass through the horizontal guide rail at different positions. The sliding direction of the horizontal guide rail is the same as the length direction of the second sliding rail 41. In this way, the position of the support rod 46 can be adjusted at will, so that the micrometer 43 connected with the support rod 46 can abut against the workpiece 7 circumferential surface of any radial outer circle diameter.

[0051] On the basis of the above embodiment, the support member 42 has a through slot 421 along the length direction of the second sliding rail 41, and the support member 42 is provided with a plurality of first through holes 422 penetrating through the through slot 421. The support rod 46 is provided with a plurality of second through holes 461 along the length direction. The second fixing assembly 47 is in the form of two rod structures, which can be inserted into the corresponding first through holes 422 and the corresponding second through holes 461.

[0052] Specifically, as shown in FIG. 6, the first detection assembly 4 further comprises a second fixing assembly 47 for fixing the support rod 46. The second fixing assembly 47 is in the form of two rod structures, which can be inserted into the corresponding first through holes 422 and the corresponding second through holes 461. Figure 1 and Figure 2As shown, the guide rail is a through groove 421 located in the middle of the support member 42. The through groove 421 extends along the width direction of the support member 42, and the length direction of the through groove 421 is the straight direction of the second slide rail 41. The end of the support rod 46 that slides on the support member 42 can be inserted into and protrude from the through groove 421. A first through hole 422 communicating with the through groove 421 is provided on the support member 42 from top to bottom. Several first through holes 422 are arranged in the same direction as the length direction of the through groove 421. The first through holes 422 penetrate the top wall of the through groove 421, and the first through holes 422 can... Extending to the bottom wall of the through groove 421, the first through hole 422 can be a round or square hole, etc., into which the rod-like structure can be inserted. The length of the rod-like structure allows it to be inserted below the through groove 421, making the fixation more stable. Several second through holes 461 are provided along a direction with a non-zero angle to the length of the support rod 46. The second through holes 461 face the same direction as the first through holes 422. It should be noted that the shapes of the first through holes 422 and the second through holes 461 can be the same or different, as long as they can be inserted into the rod-like structure at the same time. In use, after pulling out the two rod-like structures and adjusting the position of the support rod 46, the first through holes 422 and the second through holes 461 are aligned. The two rod-like structures are then inserted into the two first through holes 422 respectively, and the two rod-like structures pass through the first through holes 461 of the support rod 46, thus fixing the two support rods 46 connected to the micrometer 43. With this configuration, the detection device is easy to manufacture, has a low cost, and is easy to operate.

[0053] Based on the above embodiment, the support member 42 includes a base 423 that slides with the second slide rail 41 and a mounting base 424 for supporting the micrometer 43. The mounting base 424 is detachably connected to the base 423. There are at least two mounting bases 424 for interchangeably mounted on the base 423. The micrometer 43 mounted on different mounting bases has a different height.

[0054] like Figure 3 As shown, the base 423 and the mounting base 424 are detachably connected, such as by pins or bolts. Specifically, the mounting bases 424 of different heights are used to mount the micrometer 43 at different heights. The mounting base 424 of the preset height can be selected as needed. After fixing the mounting base 424, the parameters of the micrometer 43 are read. This detection device can adjust the height of the micrometer 43 to facilitate the measurement of workpieces 7 of different diameters.

[0055] Optionally, the through slots 421 are located at different heights of the support member 42, and the support member 42 is detachably connected to the second slide rail 41, so that the support member 42 with through slots 421 of different heights is provided on the second slide rail 41, thereby adjusting the height of the micrometer 43.

[0056] On the basis of the above-mentioned embodiments, the top surface of the base 1 has an arc-shaped sliding groove 11, and the bottom of the other end of the second sliding rail 41 has a protruding structure 411 which can slide with the sliding groove 11.

[0057] Specifically, as shown in Figure 1 and Figure 2 , the free end of the second sliding rail 41 is provided with an arc-shaped sliding groove 11 at the top of the corresponding position of the base 1, and the radius of the sliding groove 11 is the straight-line distance from the rotating shaft of the second sliding rail 41 to the position; the bottom of the second sliding rail 41 has a protruding structure 411, which can be a cylinder or a square column, as long as the protruding structure 411 can be inserted into the sliding groove 11 and slide. In this way, it is beneficial to avoid the sliding derailment of the second sliding rail 41, and effectively ensure the accuracy of the detection results.

[0058] On the basis of the above-mentioned embodiments, the bottom of the protruding structure 411 is provided with a rotatable ball 412.

[0059] Specifically, as shown in Figure 5 , a rotatable spherical ball 412 is arranged at the bottom of the protruding structure 411, which can be realized by opening a groove with the same shape as the peripheral surface of the ball 412 at the bottom of the protruding structure 411, and arranging a cylindrical small protrusion as the rotating shaft of the ball 412 on the side wall of the groove. In this way, when the second sliding rail 41 rotates, the ball 412 at the bottom of the protruding structure 411 rolls in contact with the base 1, effectively reducing the frictional resistance, and being beneficial to simplify the use of the detection device.

[0060] On the basis of the above-mentioned embodiments, the micrometer 43 is a micrometer. The accuracy of the micrometer is higher, and the results obtained by using the micrometer are more accurate.

[0061] It should be noted that the relationship terms such as "first" and "second" described above are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between the entities; the "upper surface, lower surface, top, bottom" described above and the orientation words "up, down, left, right" are defined based on the drawings.

[0062] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0063] The conical surface taper detection device provided by the application is described in detail. The principle and implementation mode of the application are described by applying specific examples. The above description of the examples is only used to help understand the method of the application and the core idea. It should be pointed out that the ordinary skilled in the art can make some improvements and modifications to the application without departing from the principle of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A device for detecting the taper of a conical surface, characterized in that, include: Base (1); The first fixing component (2) is used to fix the workpiece (7), including a first slide rail (21) and two opposing ejector pins (22). The two ejector pins (22) are slidably disposed on the first slide rail (21). The first slide rail (21) is provided with a scale (6) along the line connecting the two ejector pins (22). A standard block (3) is fitted onto the outside of one of the ejector pins (22); The first detection component (4), used to detect the taper of the workpiece (7), includes a second slide rail (41), a support member (42) and two micrometers (43). One end of the second slide rail (41) is rotatably disposed on the base (1), the support member (42) is slidably disposed on the second slide rail (41), and the micrometers (43) are adjustablely disposed on the support member (42) for detecting the taper angle of the workpiece (7). The second detection component (5) is used to read the rotation angle of the second slide rail (41); The first fixing component (2) and the first detection component (4) are both disposed on the base (1); The second detection group is a digital angle display meter, which is installed on the second slide rail (41). The first detection component (4) further includes two support rods (46) and a second fixing component (47) for fixing the support rods (46). One end of each of the two support rods (46) is slidably disposed on the support member (42). The sliding direction of the support rods (46) is the length direction of the second slide rail (41) and the direction perpendicular to the length direction of the second slide rail (41). The other end of the support rod (46) is fixedly connected to the tail of the corresponding micrometer (43). The support rod (46) and the micrometer (43) are arranged in the same line, and the length direction of the support rod (46) is perpendicular to the length direction of the second slide rail (41). The support member (42) includes a base (423) that slides with the second slide rail (41) and a mounting base (424) for supporting the micrometer (43), wherein the mounting base (424) is detachably connected to the base (423); At least two of the mounting bases (424) are provided for interchangeable mounting on the base (423), and the micrometers (43) mounted on different mounting bases have different heights.

2. The conical surface taper detection device according to claim 1, characterized in that, The first fixing component (2) further includes two mounting parts (23) and two first lead screws (24). The two pins (22) are fixed to the corresponding mounting parts (23). The mounting parts (23) are slidably disposed on the first slide rail (21). The first lead screws (24) are movably disposed on the mounting parts (23) for fixing or loosening the mounting parts (23).

3. The conical surface taper detection device according to claim 1, characterized in that, The first detection component (4) further includes a rotating shaft (44) and a second lead screw (45). One end of the second slide rail (41) is rotatably disposed on the base (1) via the rotating shaft (44), and the second lead screw (45) is movably disposed at the end of the second slide rail (41) so that the second lead screw (45) abuts against or moves away from the rotating shaft (44).

4. The conical surface taper detection device according to claim 1, characterized in that, The support member (42) has a through groove (421) along the length direction of the second slide rail (41), and the support member (42) is provided with a plurality of first through holes (422) penetrating the through groove (421). The support rod (46) is provided with a plurality of second through holes (461) along its length. The second fixing component (47) consists of two rod-shaped structures, which can be inserted into the corresponding first through hole (422) and the corresponding second through hole (461).

5. The conical surface taper detection device according to any one of claims 1 to 4, characterized in that, The top surface of the base (1) has an arc-shaped groove (11), and the bottom of the other end of the second slide rail (41) has a protrusion (411) that can slide in conjunction with the groove (11).

6. The conical surface taper detection device according to claim 5, characterized in that, The bottom of the protruding structure (411) is provided with a rotatable ball (412).

7. The conical surface taper detection device according to any one of claims 1 to 6, characterized in that, The micrometer (43) is a dial gauge.

Images