A parameter measuring device for a ruled surface structure part

Abstract

The application provides a parameter measuring device for a straight ruled surface structure part, which comprises a supporting assembly, a fixing assembly, a connecting assembly, a sector plate and a detecting assembly; the fixing assembly comprises a base, an axial positioning and clamping assembly and a lateral positioning and clamping assembly; the connecting assembly comprises a first rotating shaft and a second rotating shaft; the first rotating shaft and the second rotating shaft are used for rotatingly connecting the fixing assembly and the supporting assembly; the sector plate is fixedly connected with one end of the base and is sleeved on the first rotating shaft, and the edge of the sector plate is provided with a plurality of measuring grooves; the detecting assembly comprises a third base, a fourth base and an auxiliary gauge; the third base and the fourth base are both provided with a plurality of measuring holes, and each measuring groove can be aligned with any one measuring hole. The parameter detecting device designed by the application has the advantages of simple operation method, high detection efficiency, and is suitable for detecting single-piece and batch-produced parts; the problem of detecting space curved surfaces of special-shaped structure parts is solved, and the parameter detecting device has high detection efficiency and fast use efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of curved surface structure measurement, and particularly relates to a parameter measuring device for a part with a ruled surface structure. BACKGROUND

[0002] A kind of aviation product parts, such as Figure 1 As shown in the figure, the middle is a shaft section, and the two ends are irregular components with ruled surface structure, and the two irregular components are symmetrically arranged with the shaft section. The ruled surface structure of the irregular component is a twisted ruled surface, which is machined by a φ14 end mill in cooperation with a 4-axis numerical control machine tool according to the rotation angle and feed coordinate value, and the part rotates around the X-axis while the milling cutter feeds along the X-axis direction. The ruled surface structure has an important influence on the function of the part, and the rotation angle and feed coordinate value need to be detected.

[0003] Currently, there is no detection method and equipment for the rotation angle and feed coordinate value of the ruled surface structure, and conventional gauges cannot detect the ruled surface structure, and three-coordinate measuring equipment cannot correctly detect and evaluate, and the part is a special-shaped structure, which is difficult to position and detect. SUMMARY

[0004] The present application aims to solve the technical problem of the lack of special detection devices for ruled surface structures in the prior art, and provides a parameter measuring device for a part with a ruled surface structure.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the present application is:

[0006] The utility model provides a parameter measuring device of straight line curved surface structure part, and the part is the shaft section in the middle, and the two ends of shaft section are the irregular part with straight line curved surface structure, and two irregular parts are symmetrically arranged in the two ends of shaft section, and two irregular parts have the round hole with parallel but not collinear with the central axis of shaft section respectively, and the parameter measuring device is used for clamping part and detecting the parameter of straight line curved surface structure, and the parameter measuring device includes support assembly, fixed component, connecting component, sector plate and detection assembly, support assembly includes bottom plate and first support, second support installed on bottom plate, fixed component is located between first support and second support, including the base of part, axial positioning and clamping assembly to the axial positioning and clamping of part, and the lateral positioning and clamping assembly to the lateral positioning and clamping of part, and axial positioning and clamping assembly and lateral positioning and clamping assembly are installed on the base, connecting component includes first pivot, second pivot, first pivot is rotatably connected with first support, second pivot is rotatably connected with second support, and first pivot and second pivot are fixedly connected with the one end of same side bottom plate respectively, and are used to rotatably connect fixed component with support assembly, sector plate is sleeved on first pivot, and the edge of sector plate is equipped with three measuring grooves, detection assembly includes third support, fourth support, plug gauge on both sides of fixed component, and at least three auxiliary measuring tools, and the auxiliary measuring tool includes positioning block and the measuring cylinder on one side of positioning block, and the position of each measuring cylinder on the positioning block is different along the direction of central axis of shaft section, the upper end of third support and the upper end of fourth support are equipped with the guide hole for positioning positioning block respectively, the sidewall of third support near sector plate is equipped with a plurality of measuring holes, and each measuring groove can be aligned with any one measuring hole, and the straight line curved surface has at least three measuring surfaces, and one measuring surface is determined by inserting a first sample cylinder into one measuring groove and one measuring hole, and the auxiliary measuring tool is inserted into the guide hole, and the plug gauge is used to obtain the gap between the measuring cylinder and the measuring surface.

[0007] Further, the first base and the second base are arranged on the two ends of the base, the upper end of the first base is fixedly connected with the first pivot, and the upper end of the second base is fixedly connected with the second pivot.

[0008] Further, the lateral positioning and clamping assembly includes a plurality of first hook-shaped pressing plates, a first threaded rod, a reference block, and a first knob, the reference blocks are fixedly installed on the sidewalls of the base on the two sides, so that the shaft section abuts against the reference block on one side, and the straight line curved surface is close to the detection assembly, the lower end of the first hook-shaped pressing plate is provided with a first threaded hole matched with the first threaded rod, the base is provided with a first fixing groove and a first through hole for installing the first hook-shaped pressing plate, one end of the first threaded rod passes through the first through hole and the first threaded hole, the other end of the first threaded rod is fixedly connected with the first knob, and the diameter of the first knob is greater than the diameter of the first through hole, the first knob is rotated to enable the lower end of the first hook-shaped pressing plate to move in the first fixing groove, and the shaft section is clamped by the upper end of the first hook-shaped pressing plate and the reference block.

[0009] Further, the lower end of the irregular part is provided with a fixing surface perpendicular to the shaft section; the first rotating shaft and the second rotating shaft are both provided with a center hole; the axial positioning and clamping assembly comprises a second hook-shaped pressing plate, a second threaded rod and two second sample columns; one end of the two second sample columns respectively passes through the center hole on the same side, extends into the circular hole and makes the end surface of one of the circular holes abut against the first base; the lower end of the second hook-shaped pressing plate is provided with a second threaded hole matched with the second threaded rod; the second support is provided with an adjusting hole, the second base is provided with a second through hole, and the bottom plate provided with the second base is provided with a second fixing groove; one end of the second threaded rod passes through the adjusting hole, the second through hole and the second threaded hole in sequence, so that the lower end of the second hook-shaped pressing plate can move in the second fixing groove and the upper end of the second hook-shaped pressing plate can tightly press the fixing surface of the irregular part; the middle part of the second threaded rod close to the side of the second fixing groove is provided with a circular ring, and the diameter of the circular ring is greater than the diameter of the second through hole.

[0010] Further, the first rotating shaft and the second rotating shaft are both perpendicular to the first support; the upper end of the first support is provided with a first mounting hole for mounting the first rotating shaft; the upper end of the second support is provided with a second mounting hole for mounting the second rotating shaft, and the centers of the first mounting hole and the second mounting hole are coaxial.

[0011] Further, a gap of 1-2mm is reserved between the outer wall of the measuring cylinder and the initial measuring surface.

[0012] Further, the top surface of the guide hole is provided with a pin hole for mounting the first pin; the top surface and the bottom surface of the measuring seat are both provided with a sliding groove in the extension direction of the measuring cylinder, and the sliding groove is matched with the first pin and used for limiting the insertion direction of the auxiliary measuring tool in the guide hole.

[0013] Further, the positions of the measuring cylinders of the plurality of auxiliary measuring tools are arranged inconsistently, and the relative positions between the measuring cylinders and the sliding grooves gradually decrease.

[0014] Further, bearings are arranged between the first rotating shaft and the first mounting hole and between the second rotating shaft and the second mounting hole.

[0015] The advantages of the present application are:

[0016] The parameter detection device designed by the present application can position and clamp the part with a ruled surface structure through the arranged fixing assembly, can detect whether the ruled surface meets the processing requirements through the auxiliary measuring tool and the plug gauge, can rotate the part through the cooperation of the detection assembly and the sector plate, is convenient for switching the detection position, can detect the plurality of processing surfaces of the ruled surface of the part, and finally evaluates whether the ruled surface meets the requirements; the parameter detection device has the advantages of simple operation method, high detection efficiency, and is suitable for the detection of single-piece and batch-produced parts; solves the problem of detection of space curved surfaces of special-shaped structural parts, has high detection efficiency and fast use efficiency. Attached Figure Description

[0017] The features and advantages of the invention will become more readily apparent from the following description with reference to the accompanying drawings, which are not drawn to scale and some features are enlarged or reduced to show details of specific parts.

[0018] Figure 1 This is a schematic diagram of the structure of the part of the present invention;

[0019] Figure 2 This is an assembly diagram of the parts installed on the parameter measuring device in an embodiment of the present invention;

[0020] Figure 3 This is an assembly diagram of the auxiliary measuring tool being assembled on the fourth support in an embodiment of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the parameter measuring device in an embodiment of the present invention;

[0022] Figure 5 This is a side view of the parameter measuring device in an embodiment of the present invention;

[0023] Figure 6 This is a top view of the parameter measuring device in an embodiment of the present invention;

[0024] Figure 7 yes Figure 5 A schematic diagram of the CC direction in the diagram;

[0025] Figure 8 This is a schematic diagram of the structure of the sector plate in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram showing the positional relationship between the sector plate and the third support in an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram showing the positional relationship of the measuring holes on the third support in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the auxiliary measuring tool in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of the base plate in an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the structure of the second rotating shaft in an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of the structure of the first rotating shaft in an embodiment of the present invention;

[0032] Figure 15is a structural schematic view of a first base in an embodiment of the present application;

[0033] Figure 16 is a structural schematic view of a first hook-shaped pressing plate in an embodiment of the present application;

[0034] Figure 17 is a structural schematic view of a second hook-shaped pressing plate in an embodiment of the present application;

[0035] Figure 18 is a structural schematic view of a first threaded rod in an embodiment of the present application;

[0036] Figure 19 is a structural schematic view of a second threaded rod in an embodiment of the present application;

[0037] Figure 20 is a structural schematic view of a second sample column in an embodiment of the present application.

[0038] In the figure: 1 - base plate; 2 - first support; 3 - bushing; 4 - first hook-shaped pressing plate; 5 - first bolt; 6 - second hook-shaped pressing plate; 7 - base; 8 - second base; 9 - second support; 10 - second threaded rod; 11 - fixing pin; 12 - second knob; 13 - second rotating shaft; 14 - second washer; 15 - nut; 16 - first baffle; 17 - third support; 18 - sector plate; 19 - first base; 20 - first positioning pin; 21 - second bolt; 22 - first bearing; 23 - second bearing; 24 - first rotating shaft; 25 - first washer; 26 - cover; 27 - first screw; 28 - third washer; 29 - first sleeve; 30 - second sleeve; 31 - fourth support; 32 - second baffle; 33 - first bolt; 34 - second positioning pin; 35 - second screw; 36 - first threaded rod; 37 - first knob; 38 - second bolt; 39 - reference block; 40 - second sample column; 41 - auxiliary measuring tool. DETAILED DESCRIPTION

[0039] The present application will be described in detail below with reference to the accompanying drawings and exemplary embodiments thereof. It is to be noted that the following detailed description of the present application is merely for the purpose of illustration, and is not intended to limit the present application.

[0040] A parameter measuring device for a part with a ruled surface structure. As shown in Figure 1 the part with the ruled surface structure has a shaft section in the middle, and irregular portions with the ruled surface structure at both ends of the shaft section, and the two irregular portions are symmetrically arranged at both ends of the shaft section; the two irregular portions have through holes parallel to but not collinear with the central axis of the shaft section, and the parameter measuring device is used to clamp the part and detect the parameters of the ruled surface structure.

[0041] The twist ruled surface of the ruled surface structure is processed by a φ14 end mill in cooperation with a 4-axis numerical control machine tool according to a rotation angle and a feeding coordinate value, and the part rotates around the X axis while the end mill feeds along the X axis direction.

[0042] The detection method is that a plurality of measurement positions are selected and measured respectively, and at least three position measurements meet the requirements, which represents that the ruled surface meets the requirements.

[0043] As shown in Figure 2 , the parameter measurement device comprises a supporting assembly, a fixing assembly, a connecting assembly, a sector plate 18 and a detection assembly.

[0044] As shown in Figure 2 , 12 , the supporting assembly comprises a bottom plate 1 and first and second supports 2 and 9 mounted on the bottom plate 1. The bottom plate 1 is a mounting seat of the parameter measurement device, and the middle part is hollowed out for weight reduction. The lower ends of the first and second supports 2 and 9 are fixedly connected to the bottom plate 1 by second bolts 21.

[0045] As shown in Figure 5 , 6 , the fixing assembly is located between the first and second supports 2 and 9 and comprises a base 7 for placing a part, an axial positioning and clamping assembly for axially positioning and clamping the part, and a lateral positioning and clamping assembly for laterally positioning and clamping the part. The axial positioning and clamping assembly and the lateral positioning and clamping assembly are mounted on the base 7. The base 7 is a mounting seat of the part.

[0046] As shown in Figure 6 , 7 , 13 and 14, the connecting assembly comprises first and second rotating shafts 24 and 13. The first rotating shaft 24 is rotatably connected to the first support 2, and the second rotating shaft 13 is rotatably connected to the second support 9. The first and second rotating shafts 24 and 13 are fixedly connected to one end of the same side base 7, respectively, for rotatably connecting the fixing assembly and the supporting assembly. During assembly, the bottom plate 1 should be able to rotate flexibly relative to the supporting assembly.

[0047] As shown in Figure 4 , 8 , the sector plate 18 is sleeved on the first rotating shaft 24, and the edge of the sector plate 18 is provided with three measurement grooves. The sector plate 18 is positioned by a first positioning pin 20 and is detachably mounted on one end of the base 7 by a first bolt 5 and locked by a second washer 14 and a nut 15.

[0048] As shown in Figure 2 , 9As shown in Figure 11, the detection assembly includes a third support 17, a fourth support 31, a feeler gauge, and an auxiliary measuring tool 41 located on both sides of the fixed assembly. The auxiliary measuring tool 41 includes a positioning block and a measuring cylinder disposed on one side of the positioning block. The positions of each measuring cylinder on the positioning block along the central axis of the shaft segment are different. The third support 17 and the fourth support 31 are respectively mounted on the base plate 1. The upper ends of the third support 17 and the fourth support 31 are respectively provided with guide holes for positioning the positioning block, so that the measuring part of the auxiliary measuring tool 41 is located on the ruled surface and cooperates with the feeler gauge for measurement. The third support 17 and the fourth support 31 are both "H" shaped structures and are mounting seats into which the auxiliary measuring tool 41 is inserted, used to position and fix the rotation angle of the part.

[0049] like Figure 9 , 10 As shown, the third support 17 has three measuring holes on its side wall near the sector plate 18. Each measuring slot can be aligned with any of the measuring holes. A measuring slot and a measuring hole are inserted through the first prong, and the corresponding auxiliary measuring tool 41 is inserted into the guide hole. A feeler gauge is used to obtain the gap between the measuring cylinder and the measuring surface. By combining the three measuring holes and three measuring slots, ruled surfaces at nine locations can be measured. Corresponding angles are engraved around the measuring slots and holes for easy and quick adjustment. Bushings 3 can also be installed in the measuring holes for convenient subsequent dimensional adjustments.

[0050] The part is positioned on the fixed base using axial and lateral positioning clamping assemblies. First, the parameters of the ruled surface at the first end of the part are measured.

[0051] Since the measuring slot corresponds to the measuring hole, the rotation angle of the sector plate 18 can be adjusted so that the part is in different measuring positions. The rotation angle of the sector plate 18 is designed according to the rotation angle during part processing. The positions of the measuring cylinders of the multiple auxiliary measuring tools 41 are designed according to the feed coordinate values ​​during part processing. The rotation angle of the sector plate 18 in conjunction with the third support matches the positions of the measuring cylinders of the multiple auxiliary measuring tools 41.

[0052] This application's embodiments are illustrated by way of three detection locations: such as Figure 2 , 9 As shown, at the first measurement position, align the second measuring groove of the sector plate 18 with the second measuring hole, and insert the first measuring cylinder into both the measuring groove and the measuring hole simultaneously. Select the first auxiliary measuring tool 41 and insert it into the guide hole. Use a feeler gauge to detect the first gap value A1 between the measuring cylinder and the measuring surface.

[0053] In the second detection position, the first measuring slot of the sector plate 18 is aligned with the first measuring hole, and the first sample column is inserted into the measuring slot and the measuring hole at the same time, the second auxiliary gauge 41 is selected and inserted into the guide hole, and the feeler gauge is used to detect the second gap value A2 between the measuring cylinder and the measuring surface;

[0054] In the third detection position, the third measuring slot of the sector plate 18 is aligned with the second measuring hole, and the first sample column is inserted into the measuring slot and the measuring hole at the same time, the third auxiliary gauge 41 is selected and inserted into the guide hole, and the feeler gauge is used to detect the third gap value A3 between the measuring cylinder and the measuring surface;

[0055] When A1, A2, and A3 meet the gap requirements at the same time, the straight ruled surface at the first end meets the requirements. When measuring the straight ruled surface at the second end, the part is turned over, and then the measurement method of the straight ruled surface at the first end is used for measurement. In the same way, whether the straight ruled surface at the second end of the part meets the requirements can be detected, which is specifically:

[0056] As shown in Figure 3 、 9 When in the first measurement position, the second measuring slot of the sector plate 18 is aligned with the second measuring hole, and the first sample column is inserted into the measuring slot and the measuring hole at the same time, the first auxiliary gauge 41 is selected and inserted into the guide hole, and the feeler gauge is used to detect the first gap value B1 between the measuring cylinder and the measuring surface;

[0057] In the second detection position, the third measuring slot of the sector plate 18 is aligned with the third measuring hole, and the first sample column is inserted into the measuring slot and the measuring hole at the same time, the second auxiliary gauge 41 is selected and inserted into the guide hole, and the feeler gauge is used to detect the second gap value B2 between the measuring cylinder and the measuring surface;

[0058] In the third detection position, the first measuring slot of the sector plate 18 is aligned with the second measuring hole, and the first sample column is inserted into the measuring slot and the measuring hole at the same time, the third auxiliary gauge 41 is selected and inserted into the guide hole, and the feeler gauge is used to detect the third gap value B3 between the measuring cylinder and the measuring surface;

[0059] When B1, B2, and B3 meet the gap requirements at the same time, the straight ruled surface at the second end meets the requirements. When both straight ruled surfaces of the part are detected, both straight ruled surfaces meet the requirements, and then the part processing is qualified.

[0060] In other embodiments, detection positions can be increased according to detection requirements. The measurement methods of multiple detection positions are the same as the above-mentioned methods, and only need to be converted, and the auxiliary gauge 41 corresponding to the rotation angle of the part is selected to cooperate with the measurement.

[0061] The parameter measuring device of the embodiment is specially used for detecting the part with the twist straight line curved surface structure, and according to the processing principle, the auxiliary gauge 41 and the feeler gauge are used to detect whether the straight line curved surface of the part meets the requirements.

[0062] As shown in Figure 7 , 15 , the first base 19 and the second base 8 are arranged on the two ends of the base 7, the upper end of the first base 19 is fixedly connected with the first rotating shaft 24, and the upper end of the second base 8 is fixedly connected with the second rotating shaft 13. Among them, the first base 19 and the second base 8 are arranged in parallel with the first support 2; as shown in Figure 12 , 13 , the first rotating shaft 24 and the second rotating shaft 13 are provided with external threads at one end, the upper end of the first base 19 is fixedly connected with the first rotating shaft 24 through the threads, and the lower end is fixedly connected with one end of the base 7; the upper end of the second base 8 is fixedly connected with the second rotating shaft 13 through the threads, and the lower end is fixedly connected with the other end of the base 7; the U-shaped combination of the first base 19, the second base 8 and the base 7 is roughly similar to the structure of the part, which is convenient for the fixed installation of the part.

[0063] As shown in Figure 4 , 5 , 6, 16, the lateral positioning and clamping assembly includes two first hook-shaped pressing plates 4, a first threaded rod 36, a reference block 39 and a first knob 37.

[0064] As shown in Figure 6 , the reference block 39 is provided with four, which are fixedly installed on the two side walls of the base 7 in pairs, so that the shaft segment is abutted on the reference block 39 on one side, and then the straight line curved surface is close to the detection assembly.

[0065] As shown in Figure 4 , 6 , 16, 18, the first hook-shaped pressing plate 4, the first threaded rod 36 and the first knob 37 are provided with two, the lower end of the first hook-shaped pressing plate 4 is provided with a first threaded hole matched with the first threaded rod 36, as shown in Figure 13 , the middle of the base 7 is provided with two first fixed grooves for installing the two first hook-shaped pressing plates 4, and two first through holes, one end of the first threaded rod 36 passes through the first through hole and the first threaded hole, the other end of the first threaded rod 36 is fixedly connected with the first knob 37, and the diameter of the first knob 37 is greater than that of the first through hole; rotating the first knob 37 so that the lower end of the first hook-shaped pressing plate 4 can move in the first fixed groove, and the shaft segment is clamped by the upper end of the first hook-shaped pressing plate 4 and the reference block 39.

[0066] In the embodiment, the first knob 37 is fixedly connected with the first threaded rod 36 through the second pin 38. When the first knob 37 rotates, the first threaded rod 36 also rotates, keeping the upper end of the first hook-shaped pressing plate 4 on the first threaded rod 36 always in a vertical state. The first hook-shaped pressing plate 4 is controlled not to rotate with the first threaded rod 36, so that the first hook-shaped pressing plate 4 gradually approaches the shaft section in the first fixed groove, cooperates with the reference block 39 on the same side, and fixes and clamps the part. When the other side straight-line curved surface of the part is measured, the first threaded rod 36 on the same side is rotated by the first knob 37 on the same side, so that the part abuts against the reference block 39 on the other side, and is fixed and clamped by the hook-shaped pressing plate on the other side.

[0067] As shown in Figure 1 , 2 , the lower end of the irregular part is provided with a fixing surface perpendicular to the shaft section; the first rotating shaft 24 and the second rotating shaft 13 both have a center hole.

[0068] As shown in Figure 5 , 7 , 17, 19, 20, the axial positioning and clamping assembly includes a second hook-shaped pressing plate 6, a second threaded rod 10, and two second sample columns 40. One end of each of the two second sample columns 40 passes through the center hole on the same side, extends into the circular hole, and makes the end face of one of the circular holes abut against the first base 19. The lower end of the second hook-shaped pressing plate 6 is provided with a second threaded hole matched with the second threaded rod 10. The second support 9 is provided with an adjusting hole, the second base 8 is provided with a second through hole, and the bottom plate 1 on one side of the second base 8 is provided with a second fixed groove. One end of the second threaded rod 10 passes through the adjusting hole, the second through hole, and the second threaded hole in sequence, so that the lower end of the second hook-shaped pressing plate 6 can move in the second fixed groove and abut against the fixing surface of the irregular part through the upper end of the second hook-shaped pressing plate 6. The middle part of the second threaded rod 10 close to the side of the second fixed groove has a circular ring, and the diameter of the circular ring is greater than the diameter of the second through hole. The other end of the second threaded rod 10 is fixedly installed with a second knob 12 through a fixed pin 11, which is used to rotate the second threaded rod 10.

[0069] The first support 2 and the second support 9 are both installed with a protective cover 26 protecting the first bearing 22 and the second bearing 23, a third gasket 28, and a first screw 27 locking the protective cover 26. The protective cover 26 is provided with a through hole through which the second sample column 40 passes.

[0070] In this embodiment, the part is first aligned with the center holes of the first rotating shaft 24 and the second rotating shaft 13 through the two second sample columns 40, and is fixed in the axial direction; one end of the part abuts against the first base 19, and the part is fixed and locked in the axial direction through the second hook-shaped pressing plate 6. The middle part of the second threaded rod 10 is provided with a circular ring to limit the second threaded rod 10 to only rotate in the circumferential direction and cannot move in the axial direction. When the second threaded rod 10 rotates, the second hook-shaped pressing plate 6 is driven to move in the second fixed groove and lock the part.

[0071] As shown in Figure 4 , 7 , the first rotating shaft 24 and the second rotating shaft 13 are both perpendicular to the first support 2; the upper end of the first support 2 is provided with a first mounting hole for mounting the first rotating shaft 24; the upper end of the second support 9 is provided with a second mounting hole for mounting the second rotating shaft 13, and the centers of the first mounting hole and the second mounting hole are coaxial.

[0072] As shown in Figure 11 , the auxiliary measuring tool 41 includes a measuring column and a fixing seat; the fixing seat is placed in the guide hole to make the outer wall of the measuring column have a gap of 1-2 mm with the initial position of the ruled surface. The fixing seat is also provided with teeth at one end for anti-skid, facilitating taking and fixing.

[0073] As shown in Figure 6 , the top surface of the guide hole is provided with a pin hole for mounting the first pin 33; the top surface and the bottom surface of the measuring seat are both provided with a sliding groove along the extension direction of the measuring column, which cooperates with the first pin 33 to limit the insertion direction of the auxiliary measuring tool 41 in the guide hole. Among them, the guide hole on the third support 17 is composed of the guide groove on the third support 17 and the first baffle 16 mounted on the top surface of the guide groove; the guide hole on the fourth support 31 is composed of the guide groove on the fourth support 31 and the second baffle 32 mounted on the top surface of the guide groove; the installation of the first baffle 16 on the third support 17 and the second baffle 32 on the fourth support 31 are both positioned by the second positioning pin 34, and locked by the second screw 35.

[0074] In this embodiment, the auxiliary measuring tool 41 is designed according to the feed coordinate value when the ruled surface is processed, and is provided with multiple specifications. The positions of the measuring columns of each specification of the auxiliary measuring tool 41 are inconsistent, and the relative positions of the measuring columns and the sliding grooves gradually decrease.

[0075] As shown in Figure 7 , two bearings are provided between the first rotating shaft 24 and the first mounting hole, and between the second rotating shaft 13 and the second mounting hole, respectively, which are the first bearing 22 and the second bearing 23, and are locked by the first washer 25 and the nut 15. The first sleeve 29 and the second sleeve 30 are installed between the first bearing 22 and the second bearing 23, and the first sleeve 29 is sleeved outside the second sleeve 30.

[0076] The specific steps of assembling the parameter measuring device are as follows:

[0077] 1. The second hook-shaped pressing plate 6 is installed in the second fixed slot of the base 7, the second screw is screwed into the second threaded hole of the second hook-shaped pressing plate 6, the first base 19 and the second base 8 are installed on the base 7, positioned by the first positioning pin 20, and fastened by the first bolt 5.

[0078] 2. The reference block 39 is installed on both sides of the base 7, positioned by the first positioning pin 20, and fastened by the first bolt 5.

[0079] 3. The first hook-shaped pressing plate 4 is installed in the first fixed slot of the base 7, the first screw is screwed into the first threaded hole of the first hook-shaped pressing plate 4, the first knob 37 is installed at one end of the first threaded rod 36, and fixed by the second plug pin 38.

[0080] 4. The sector plate 18 is installed on the side of the first base 19 according to the angle, positioned by the first positioning pin 20, and fastened by the first bolt 5.

[0081] 5. The first bearing 22, the second bearing 23, the first sleeve 29, and the second sleeve 30 are respectively installed on the first rotating shaft 24 and the second rotating shaft 13, and the first washer 25 is placed, and fastened by the nut 15.

[0082] 6. The assembled first rotating shaft 24 and the second rotating shaft 13 are respectively installed in the bearing installation hole of the first support 2 and the second support 9, and the first washer 25 and the cover 26 are respectively installed.

[0083] 7. The assembled first support 2 and the second support 9 are installed on the bottom plate 1, the assembled base 7 is installed on the first support 2 and the second support 9, locked by the second washer 14 and the nut 15, and the center, coaxiality, and spacing of the first support 2 and the second support 9 are adjusted to ensure that the base 7 can rotate flexibly, positioned by the pin, and fastened on the bottom plate 1 by the second bolt 21.

[0084] 8. The second knob 12 is installed at one end of the second screw, and fastened by the fixed pin 11.

[0085] 9. The bushing 3 is installed in the measuring hole, and the third support 17 and the fourth support 31 are installed on the bottom plate 1 according to the size requirements, positioned by the first positioning pin 20, and fastened by the second bolt 21.

[0086] 10. The first baffle plate 16 is installed on the third support 17, positioned by the second positioning pin 34, fastened by the second screw 35, and the first plug pin 33 is installed in the pin hole of the first baffle plate 16.

[0087] 11. Install the second baffle 32 on the fourth support 31, position it with the second locating pin 34, tighten the second screw 35, and install the first pin 33 in the pin hole of the second baffle 32. The parameter detection device designed in this embodiment can fix parts with ruled curved surfaces through the set fixing components. By setting the detection components and using the auxiliary measuring tool 41 and feeler gauge, it can detect whether the ruled curved surface meets the processing requirements. The detection components and the sector plate 18 cooperate to rotate the part and detect multiple processed surfaces of the ruled curved surface of the part. Finally, the overall evaluation is performed to determine whether it meets the requirements. This parameter detection device has a simple operation method and high detection efficiency, and is suitable for the detection of single-piece and batch production parts. It solves the problem of spatial curved surface detection of irregularly shaped structural parts, and has high detection efficiency; using this invention to detect a part only takes 5 minutes.

[0088] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present invention can be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. These combined or substituted technical solutions should also be considered to be included within the scope of protection of the present invention.

Claims

1. A parameter measuring device for a part having a ruled curved surface structure, wherein the part has a shaft segment in the middle, and the two ends of the shaft segment are irregular portions with ruled curved surface structures, and the two irregular portions are symmetrically arranged at both ends of the shaft segment; each of the two irregular portions has a circular hole parallel to but not collinear with the central axis of the shaft segment, and the parameter measuring device is used to clamp the part and detect the parameters of the ruled curved surface structure; characterized in that, The parameter measuring device includes: The support assembly includes a base plate (1) and a first support (2) and a second support (9) mounted on the base plate (1); The fixing assembly, located between the first support (2) and the second support (9), includes a base (7) for placing the part, an axial positioning clamping assembly for axially positioning and clamping the part, and a lateral positioning clamping assembly for laterally positioning and clamping the part. The axial positioning clamping assembly and the lateral positioning clamping assembly are mounted on the base (7). The connecting component includes a first rotating shaft (24) and a second rotating shaft (13); the first rotating shaft (24) is rotatably connected to the first support (2); the second rotating shaft (13) is rotatably connected to the second support (9); the first rotating shaft (24) and the second rotating shaft (13) are respectively fixedly connected to one end of the base (7) on the same side, so as to make the fixing component rotatably connected to the supporting component; A sector plate (18) is sleeved on the first rotating shaft (24), and the edge of the sector plate (18) is provided with three measuring grooves; The detection assembly includes a third support (17), a fourth support (31), a feeler gauge, and at least three auxiliary measuring tools (41) located on both sides of the fixing assembly. Each auxiliary measuring tool (41) includes a positioning block and a measuring cylinder disposed on one side of the positioning block. The positions of each measuring cylinder on the positioning block along the central axis of the shaft segment are different. The third support (17) and the fourth support (31) are respectively mounted on the base plate (1). The upper ends of the third support (17) and the upper ends of the fourth support (31) are respectively provided with guide holes for positioning the positioning block. The third support (17) has a plurality of measuring holes on the side wall near the sector plate (18), and each measuring slot can be aligned with any one of the measuring holes; The ruled surface has at least three measuring surfaces. A measuring surface is determined by inserting a first cylindrical gauge into a measuring groove and a measuring hole, and the corresponding auxiliary gauge (41) is inserted into the guide hole. A feeler gauge is used to obtain the gap between the measuring cylinder and the measuring surface.

2. The parameter measuring device according to claim 1, characterized in that, The base (7) has a first base (19) and a second base (8) at both ends. The upper end of the first base (19) is fixedly connected to the first rotating shaft (24), and the upper end of the second base (8) is fixedly connected to the second rotating shaft (13).

3. The parameter measuring device according to claim 2, characterized in that, The lateral positioning clamping assembly includes multiple first hook-shaped pressure plates (4), a first threaded rod (36), a reference block (39), and a first knob (37); Multiple reference blocks (39) are fixedly installed on the side walls of the base (7) respectively, so that the shaft segment abuts against the reference block (39) on one side, thereby bringing the ruled surface closer to the detection component; The lower end of the first hook-shaped pressure plate (4) is provided with a first threaded hole that mates with the first threaded rod (36). The middle part of the base (7) is provided with a first fixing groove for mounting the first hook-shaped pressure plate (4) and a first through hole. One end of the first threaded rod (36) passes through the first through hole and the first threaded hole. The other end of the first threaded rod (36) is fixedly connected to the first knob (37). The diameter of the first knob (37) is larger than the diameter of the first through hole. Rotating the first knob (37) allows the lower end of the first hook-shaped pressure plate (4) to move in the first fixing groove. The upper end of the first hook-shaped pressure plate (4) clamps the shaft segment with the reference block (39).

4. The parameter measuring device according to claim 2, characterized in that, The lower end of the irregular portion is provided with a fixing surface perpendicular to the shaft segment; both the first rotating shaft (24) and the second rotating shaft (13) have a central hole; The axial positioning clamping assembly includes a second hook-shaped pressure plate (6), a second threaded rod (10), and two second sample posts (40); One end of each of the two second sample columns (40) passes through the central hole on the same side and extends into the circular hole, with the end face of one of the circular holes abutting against the first base (19); The lower end of the second hook-shaped pressure plate (6) is provided with a second threaded hole that mates with the second threaded rod (10); the second support (9) is provided with an adjustment hole, the second base (8) is provided with a second through hole, and the bottom plate (1) is provided with a second fixing groove on one side of the second base (8); one end of the second threaded rod (10) passes through the adjustment hole, the second through hole and the second threaded hole in sequence, so that the lower end of the second hook-shaped pressure plate (6) can move in the second fixing groove, and the upper end of the second hook-shaped pressure plate (6) presses against the fixing surface of the irregular part; The second threaded rod (10) has a ring on the side near the second fixing groove in the middle, and the diameter of the ring is larger than the diameter of the second through hole.

5. The parameter measuring device according to claim 1, characterized in that, The first rotating shaft (24) and the second rotating shaft (13) are both perpendicular to the first support (2); the upper end of the first support (2) is provided with a first mounting hole for mounting the first rotating shaft (24); the upper end of the second support (9) is provided with a second mounting hole for mounting the second rotating shaft (13), and the center of the first mounting hole and the center of the second mounting hole are coaxial.

6. The parameter measuring device according to claim 1, characterized in that, A gap of 1-2 mm is reserved between the outer wall of the measuring cylinder and the initial measuring surface.

7. The parameter measuring device according to claim 6, characterized in that, The top surface of the guide hole is provided with a pin hole for installing the first pin (33); The top and bottom surfaces of the measuring base are provided with grooves along the extension direction of the measuring cylinder. The grooves cooperate with the first pin (33) to limit the insertion direction of the auxiliary measuring tool (41) in the guide hole.

8. The parameter measuring device according to claim 7, characterized in that, The positions of the measuring cylinders of the multiple auxiliary measuring tools (41) are not consistent, and the relative position of the measuring cylinders and the slide grooves gradually decreases.

9. The parameter measuring device according to claim 5, characterized in that, Bearings are provided between the first rotating shaft (24) and the first mounting hole, and between the second rotating shaft (13) and the second mounting hole.

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