High-precision spherical position degree and profile degree detection device

Abstract

The utility model belongs to the technical field of automobile engine part detection, and particularly discloses a high-precision spherical position degree and profile degree detection device, which is characterized in that a positioning seat, a turnover measuring assembly and an angular positioning assembly are arranged on a detection tool base, and a rotary positioning shaft is arranged in the middle of the positioning seat; the top of the rotation positioning shaft is rotatably connected with a rotation positioning seat, the rotation positioning seat is sleeved with the ball position measuring assembly, in the working process, a product to be measured is placed on the positioning seat, the positioning seat and the angular positioning assembly are matched to achieve positioning of the product to be measured, and the overturning measuring assembly is used for detecting the surface hole position and the end face profile tolerance of the product to be measured. According to the device, the axial and radial rotation positioning precision of the ball position measuring assembly is effectively ensured, the ball position measuring assembly rotates around the rotation positioning shaft smoothly, is wear-resistant, stable and efficient, the detection efficiency is greatly improved, and the service life of the detection tool is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile engine parts detection, and specifically discloses a high-precision spherical surface position and contour detection device. Background Art

[0002] At present, in the field of automobile engine parts detection technology, a spherical position detection device is used to detect the spherical position of the flange cone tube supporting the automobile engine. The existing spherical position detection device includes a movable detection pin, a guide sleeve and a gauge body. The guide part of the detection pin moves or rotates in the guide sleeve to achieve detection. For the spherical position detection of the flange cone tube, due to the special spherical structure, in order to reduce the difficulty of making the gauge, the detection end of the detection pin often takes a part of the spherical surface, and then rotates in the guide sleeve through the guide part to achieve full spherical detection. In this way, wear will be generated between the guide part of the detection pin and the guide sleeve due to rotational friction; and because the spherical position detection device needs to be positioned by a positioning block in the direction of the spherical center axis when performing spherical detection, therefore, the flange cone tube spherical position detection device will face axial and radial bidirectional wear during rotation detection, resulting in a low service life of the conventional detection mechanism, which cannot meet the requirements of long-term use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a high-precision spherical position and contour detection device. The ball position measurement component is rotatably connected to the top of the rotary positioning shaft. Through axial bearing end face positioning and radial interference rolling fit positioning, high-precision rotary positioning is achieved, the friction coefficient is reduced, and the service life of the inspection fixture is improved.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A high-precision spherical position and contour detection device comprises a gauge base, on which a positioning seat, a flip measurement component and an angular positioning component are arranged, the flip measurement component and the angular positioning component are arranged at intervals on the periphery of the positioning seat, a rotary positioning shaft is provided in the middle of the positioning seat, a rotary positioning seat is rotatably connected to the top of the rotary positioning shaft, and the ball position measurement component is sleeved on the rotary positioning seat. When working, the product to be tested is placed on the positioning seat, and the positioning seat and the angular positioning component cooperate to realize the positioning of the product to be tested, the flip measurement component is used to detect the surface hole position and end face contour of the product to be tested, and the ball position measurement component is used to detect whether the size, position and contour of the spherical diameter of the product to be tested are qualified.

[0006] Furthermore, in the high-precision spherical position and contour detection device, the ball position measurement component includes a strip detection block, the center of the bottom of the detection block is sleeved on the swivel positioning seat and is gap-matched with the swivel positioning seat, and downwardly extending detection heads are respectively provided at both ends of the bottom of the detection block, and the two detection heads are symmetrically arranged, and the opposing surfaces of the two detection heads are spherical structures that match the spherical surface of the product to be tested, and a number of T-shaped drilled holes penetrating the upper and lower end surfaces of the detection block are arranged at intervals on the detection block, and limit pins are correspondingly arranged in the drilled holes, and the upper end of the limit pin is connected to one end of the compression spring, and the other end of the compression spring is connected to the stop block.

[0007] Furthermore, in the high-precision spherical position and contour detection device, the bottom of the rotary positioning shaft is fixedly connected to the positioning seat, the top of the rotary positioning shaft is a reduced diameter structure, and a thrust bearing B, a steel ball bushing and a thrust bearing A are arranged in sequence from top to bottom between the rotary positioning seat and the top of the rotary positioning shaft, the steel ball bushing is interference fit with the rotary positioning shaft body, and a step extending radially outward along the rotary positioning shaft is provided at the lower end of the rotary positioning seat, and a positioning block is fixedly connected to the step, the upper end face of the positioning block contacts the lower end face of the detection block, and a plurality of slots are arranged at intervals along the circumference of the top of the positioning block, and the slots are matched with limit pins. When the detection block drives the limit pin to rotate above the slot, the limit pin is inserted into the slot arranged on the top of the positioning block under the action of the compression spring, so as to realize the rotation limit of the detection block on the rotary positioning seat, avoid the rotation friction between the detection block and the rotary positioning seat, and improve the service life of the detection block.

[0008] Furthermore, in the high-precision spherical position and contour detection device, the positioning seat is horizontally arranged on the inspection fixture base, and a plurality of arc-shaped ribs with protrusions are arranged at intervals on the top edge of the positioning seat, and the arc-shaped ribs and the connecting line between the arc-shaped ribs together enclose a circular ring, the circular ring is concentrically arranged with the rotary positioning axis, and the inner diameter of the circular ring is equal to the outer diameter of the inner edge of the bottom of the product to be tested, and a plurality of circular protrusions are evenly arranged on the upper end surface of the arc-shaped rib, preferably 3 evenly arranged protrusions, and the protrusions are 0.5 mm higher than the upper end surface of the circular ring, which are used for axial positioning of the product to be tested, and an angular positioning component and two flip measurement components are arranged at intervals along the circumference of the positioning seat, and the flip measurement component and the angular positioning component are respectively fixed on the inspection fixture base.

[0009] Furthermore, the high-precision spherical position and contour detection device, the flip measurement component includes a flip plate A, and a surface height detection positioning seat A and a movable latch A are arranged at the bottom of one end of the flip plate A adjacent to the positioning seat, and the other end of the flip plate A is rotatably connected to the vertically arranged bracket A through a rotating shaft A. When working, the flip plate A can drive the surface height detection positioning seat A and the movable latch A to rotate, and the surface height detection positioning seat A and the movable latch A are inserted into the threaded hole of the product to be tested to detect the hole position and the end face contour.

[0010] Furthermore, the high-precision spherical position and contour detection device, the angular positioning assembly includes a flip plate B, and a rotation limiting positioning seat and a movable pin B are arranged at the bottom of one end of the flip plate B adjacent to the positioning seat, and the other end of the flip plate B is rotatably connected to the vertically arranged bracket B through a rotating shaft B. When working, the flip plate B can drive the rotation limiting positioning seat and the movable pin B to rotate, and the rotation limiting positioning seat and the movable pin B are inserted into the surface hole of the product to be tested to realize angular positioning.

[0011] Furthermore, the high-precision spherical position and contour detection device is provided with a U-shaped first axis groove on the top of the bracket A, the rotating shaft A is arranged at the end of the first axis groove away from the positioning seat, the rotating shaft A passes through one end of the flip plate A and is rotatably connected to the flip plate A, and limit blocks for limiting the rotation angle of the flip plate A around the rotating shaft A are respectively provided at both ends of the first axis groove.

[0012] Furthermore, the high-precision spherical position and contour detection device is provided with a U-shaped second axis groove on the top of the bracket B, the rotating shaft B is arranged at the end of the second axis groove away from the positioning seat, the rotating shaft B passes through one end of the flip plate B and is rotatably connected to the flip plate B, and limit blocks for limiting the rotation angle of the flip plate B around the rotating shaft B are respectively provided at both ends of the second axis groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model discloses a high-precision spherical surface position and contour detection device. A positioning seat, a flip measuring component and an angular positioning component are arranged on a gauge base. The flip measuring component and the angular positioning component are arranged at intervals on the periphery of the positioning seat. A rotary positioning shaft is arranged in the middle of the positioning seat. The top of the rotary positioning shaft is rotatably connected with the rotary positioning seat. The ball position measurement component is sleeved on the rotary positioning seat. The top of the rotary positioning shaft is a reduced diameter structure. A thrust bearing B, a steel ball bushing and a thrust bearing A are arranged in sequence from top to bottom between the rotary positioning seat and the top of the rotary positioning shaft. The steel ball bushing is interference fit with the rotary positioning shaft. Through axial bearing end face positioning and radial interference rolling fit positioning, high-precision axial and radial positioning of the ball position measurement component in the device is achieved, rotational friction between the detection block and the rotary positioning seat is avoided, and the service life of the detection block is improved.

[0015] The utility model discloses a high-precision spherical surface position and contour detection device, which integrates the detection of the size, position and contour of the relevant hole system position and end face contour of the product to be tested, and the spherical surface diameter, so as to facilitate the installation and removal of the ball position measurement component and effectively improve the detection efficiency of the product to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model high-precision spherical position and contour detection device;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the flip measurement component in the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the angular positioning assembly in the utility model;

[0020] Figure 4 It is a side view of the working state of the high-precision spherical position and contour detection device of the utility model;

[0021] Figure 5 It is a top view of the working state of the high-precision spherical position and contour detection device of the utility model;

[0022] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of the EE section;

[0023] Figure 7 yes Figure 6 A schematic diagram of the enlarged structure of the local A in the middle;

[0024] In the above figure: 1-gauge base; 2-positioning seat; 3-flip measurement assembly; 3.1-bracket A; 3.2-flip limit block A; 3.3-rotating shaft A; 3.4-pressing support A; 3.5-flip plate A; 3.6-handle A; 3.7-reset spring; 3.8-guide sleeve A; 3.9-surface height detection positioning seat A; 3.10-movable latch A; 4-bottom foot; 5-angular positioning assembly; 5.1-bracket B; 5.2-rotating shaft B; 5.3-flip limit block B; 5.4-pressure Tight support B; 5.5-flip plate B; 5.6-handle B; 5.7-guide sleeve B; 5.8-restricted rotation positioning seat; 5.9-movable latch B; 6-rotation positioning shaft; 7-ball position measurement assembly; 7.1-handle; 7.2-detection block; 7.3-bushing; 7.4-stopper; 7.5-compression spring; 7.6-limit pin; 8-product to be tested; 9-thrust bearing A; 10-rotation positioning seat; 11-positioning block; 12-steel ball bushing; 13-thrust bearing B; 14-baffle. DETAILED DESCRIPTION

[0025] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0026] Combined with Figure 1-7 The utility model of high-precision spherical position and contour detection device is described in detail, including a gauge base 1, at the bottom four corners of the gauge base 1 are respectively provided with feet 4, a positioning seat 2, a flip measurement component 3 and an angular positioning component 5 are arranged on the gauge base 1, the flip measurement component 3 and the angular positioning component 5 are arranged at intervals on the periphery of the positioning seat 2, a rotary positioning shaft 6 is provided in the middle of the positioning seat 2, a rotary positioning seat 10 is rotatably connected to the top of the rotary positioning shaft 6, and the ball position measurement component 7 is sleeved on the rotary positioning seat 10 On the top, the rotary positioning seat 10 is detachably connected to the ball position measuring component 7. When working, the product 8 to be tested is placed on the positioning seat 2, and the positioning seat 2 and the angular positioning component 5 cooperate to realize the positioning of the product 8 to be tested. The flip measuring component 3 is used to detect the surface hole position and end face contour of the product 8 to be tested. The rotary positioning seat 10 drives the ball position measuring component 7 to rotate around the rotary positioning axis 6. The size, position and contour of the spherical surface of the product 8 to be tested are judged by whether the ball position measuring component 7 is in contact with the spherical surface of the product to be tested.

[0027] As an optional design, the high-precision spherical position and contour detection device is preferred, and the ball position measurement component 7 includes a strip detection block 7.2, a handle 7.1 is provided on the top of the detection block 7.2, and a bushing 7.3 is provided at the bottom center of the detection block 7.2. The bushing 7.3 is sleeved on the rotary positioning seat 10 and is rotatably connected to the rotary positioning shaft 6. There is a clearance fit between the bushing 7.3 and the rotary positioning seat 10. Downward extending detection heads are respectively provided at both ends of the bottom of the detection block 7.2. The two detection heads are symmetrically arranged, and the opposite surfaces of the two detection heads are spherical structures matching the spherical surface of the product 8 to be tested. A number of T-shaped drilled holes penetrating the upper and lower end surfaces of the detection block 7.2 are arranged at intervals on the detection block 7.2, and a limit pin 7.6 is correspondingly arranged in the drilled hole, and the upper end of the limit pin 7.6 is connected to one end of the compression spring 7.5, and the other end of the compression spring 7.5 is connected to the stop block 7.4.

[0028] As an optional design, the high-precision spherical position and contour detection device is preferred, the bottom of the rotary positioning shaft 6 is fixedly connected to the positioning seat 2, the top of the rotary positioning shaft 6 is a reduced diameter structure, a rotary positioning seat 10 is sleeved on the top of the rotary positioning shaft 6, and a thrust bearing B13, a steel ball bushing 12 and a thrust bearing A9 are arranged from top to bottom between the rotary positioning seat 10 and the rotary positioning shaft 6, the steel ball bushing 12 is interference fit with the rotary positioning shaft 6, and a baffle 14 is installed above the rotary positioning seat 10 and between the top of the rotary positioning shaft 6, the baffle 14 is used to realize the axial positioning of the rotary positioning seat 10, the rotary positioning seat 10 is rotatably connected to the rotary positioning shaft 6, and a step extending radially outward along the rotary positioning shaft 6 is provided at the lower end of the rotary positioning seat 10, and on the step A positioning block 11 is fixedly connected, and the upper end surface of the positioning block 11 contacts the lower end surface of the detection block 7.2. A plurality of slots are arranged at intervals along the circumference of the top of the positioning block 11, and the slots are matched with the limit pins 7.6. When the detection block 7.2 rotates around the rotary positioning shaft 6, the limit pin 7.6 can be driven to rotate. When the limit pin 7.6 rotates to the top of the slot, the compression spring 7.5 accumulates potential energy and releases a downward force to the limit pin 7.6, pushing the limit pin 7.6 to insert into the slot, thereby realizing the rotation limit of the detection block 7.2 on the rotary positioning seat 10, realizing high-precision rotary positioning, avoiding the rotation friction between the detection block 7.2 and the rotary positioning seat 10, and improving the service life of the detection block 7.2 and the service life of the detection device.

[0029] As an optional design, the high-precision spherical position and contour detection device is preferably provided, the positioning seat 2 is horizontally arranged on the inspection fixture base 1, and a plurality of raised arc-shaped ribs are arranged at intervals on the top edge of the positioning seat 2, and the arc-shaped ribs and the connecting line between the arc-shaped ribs jointly surround a circular ring, the circular ring is arranged concentrically with the rotary positioning axis, and the inner diameter of the circular ring is equal to the outer diameter of the inner edge of the bottom of the product to be tested 8, and at the same time, a plurality of circular ribs are evenly arranged on the upper end surface of the arc-shaped rib. In this case, it is preferred that the upper end surface of the arc-shaped rib is evenly divided. Three circular protrusions are provided, and the protrusions are 0.5 mm higher than the upper end surface of the circular ring, and are used for axial positioning of the tested piece. During operation, the tested product 8 is placed on the positioning seat 2, and the inner edge of the bottom of the tested product 8 contacts the arc-shaped rib to achieve radial positioning, and the outer edge of the bottom of the tested product 8 contacts the protrusion on the arc-shaped rib to achieve axial height positioning. An angular positioning component 5 and two flip measurement components 3 are provided at intervals along the circumference of the positioning seat 2, and the flip measurement component 3 and the angular positioning component 5 are respectively fixed on the inspection fixture base 1.

[0030] As an optional design, the high-precision spherical position and contour detection device is preferably used. The flip measurement component 3 includes a flip plate A3.5. A surface height detection positioning seat A3.9 and a movable latch A3.10 are arranged at the bottom of one end of the flip plate A3.5 adjacent to the positioning seat 2. A handle A3.6 is arranged at the top of the flip plate A3.5 at a position corresponding to the height detection positioning seat A3.9. A reset spring 3.7 is sleeved on the lower part of the handle B3.6. The two ends of the reset spring 3.7 are respectively connected to the handle B3.6 and the guide sleeve A3.8. The lower end of the handle A3.6 passes through the guide sleeve A3.8 and the flip plate A3.5 in turn and is connected to the height detection positioning seat A3.9 and the movable latch A3.10. During detection, the surface height detection positioning seat A3.9 and the movable latch A3.10 can be pressed downward by pressing the handle A3.6. After releasing the handle A3.6, the potential energy accumulated by the reset spring 3.7 is released to apply an upward force to the handle 3.6. The handle A3.6 drives the surface height detection positioning seat A3.9 and the movable latch A3.10 to move upward and return to their original positions. The other end of the flip plate A3.5 is rotatably connected to the vertically arranged bracket A3.1 through the rotating shaft A3.3. A clamping support A3.4 is also arranged on the top of the flip plate A3.5. When working, the flip plate A3.5 drives the movable height detection positioning seat A3.9 and the movable latch A3.10 to rotate. When the flip plate A3.5 rotates to a horizontal position, the clamping device clamps the flip plate A3.5 through the clamping support A3.4. The height detection positioning seat A3.9 and the movable latch A3.10 are inserted into the threaded hole on the surface of the product 8 to be tested. The outer surface of the height detection positioning seat A3.9 is a reducing structure matched with the end face of the standard threaded hole. The depth of the latch A3.10 inserted into the threaded hole is used to detect whether the hole position is qualified. The contour of the threaded hole end face is detected by whether the inner wall of the threaded hole end face is completely fitted with the height detection positioning seat A3.9.

[0031] As an optional design, the high-precision spherical position and contour detection device is preferred, and the angular positioning component 5 includes a flip plate B5.5. A rotation limiting positioning seat 5.8 and a movable latch B5.9 are arranged at the bottom of one end of the flip plate B5.5 adjacent to the positioning seat 2. A handle B5.6 is arranged at the top of the flip plate B5.5 at a position corresponding to the rotation limiting positioning seat B5.8. The lower end of the handle B5.6 passes through the guide sleeve B5.7 and the flip plate A3.5 in turn and is connected to the rotation limiting positioning seat B5.8 and the movable latch B5.9. A clamping support B5.4 is also arranged on the top of the flip plate B5.5. The other end of the flip plate B5.5 is rotatably connected to the vertically arranged bracket B5.1 through a rotating shaft B5.2. When working, the flip plate B5.5 can drive the limited rotation positioning seat 5.8 and the movable latch B5.9 to rotate. When the flip plate B5.5 rotates to a horizontal position, the limited rotation positioning seat 5.8 and the movable latch B5.9 are pressed by the handle B5.6 to insert into the threaded hole of the product to be tested 8. The clamping device clamps the flip plate B5.5 through the clamping support B5.4 to achieve angular positioning of the product to be tested. At the same time, the outer surface of the limited rotation positioning seat B5.8 is a variable diameter structure matched with the end face of the standard threaded hole. The depth of the movable latch B5.9 inserted into the threaded hole is used to detect whether the hole position is qualified. The contour of the threaded hole end face is detected by whether the inner wall of the threaded hole end face is completely fitted with the limited rotation positioning seat 5.8.

[0032] As an optional design, the high-precision spherical position and contour detection device is preferably provided with a U-shaped first axis groove opening facing upward at the top of the bracket A3.1, and a rotating shaft A3.3 is provided at the end of the first axis groove away from the positioning seat 2. The rotating shaft A3.3 passes through one end of the flip plate A3.5 and is rotatably connected to the flip plate A3.5. At both ends of the first axis groove, a flip limit block A3.2 and a flip positioning block A (not shown in the figure) for limiting the rotation angle of the flip plate A3.5 around the rotating shaft A are correspondingly provided. The flip limit block A3.2 is used to limit the maximum angle of the flip plate A3.5 when it is rotated upward around the rotating shaft A3.3, and the flip positioning block A limits the flip plate A3.5 to rotate downward around the rotating shaft A3.3 and can only rotate to a horizontal position, that is, the position where the flip plate A3.5 is parallel to the positioning seat 2.

[0033] As an optional design, the high-precision spherical position and contour detection device is preferably provided with a U-shaped second axial groove with an opening facing upward at the top of the bracket B5.1, and a rotating shaft B5.2 is provided at the end of the second axial groove away from the positioning seat 2. The rotating shaft B5.2 passes through one end of the flip plate B5.5 and is rotatably connected to the flip plate B5.5. At both ends of the second axial groove, there are correspondingly provided limit blocks for limiting the rotation angle of the flip plate B5.5 around the rotating shaft B5.2, a flip limit block B5.3 and a flip positioning block B (not shown in the figure), the flip limit block B5.3 is used to limit the maximum angle of the flip plate B5.5 when it is rotated upward around the rotating shaft B5.2, and the flip positioning block B limits the flip plate B5.5 to rotate downward around the rotating shaft B5.2 and can only rotate to a horizontal position, that is, the position where the flip plate B5.5 is parallel to the positioning seat 2.

[0034] The working process of the utility model high-precision spherical position and contour detection device is as follows:

[0035] The flip measurement assembly 3 and the angular positioning assembly 5 are in the initial loosened state, that is, the flip plate A3.5 drives the movable height detection positioning seat A3.9 and the movable latch A3.10 to rotate upward to the limit position of the flip limit block A3.2, and the flip plate B5.5 drives the limited rotation positioning seat 5.8 and the movable latch B5.9 to rotate upward to the limit position of the flip limit block B5.3.

[0036] 1. First, place the product 8 to be tested into the positioning seat 2. The inner edge of the bottom of the product 8 to be tested contacts the arc-shaped rib to achieve radial positioning, and the outer edge of the bottom of the product 8 to be tested contacts the protrusion on the arc-shaped rib to achieve axial positioning;

[0037] 2. Pull down the flip plate B5.5 of the angular positioning assembly 5 to a horizontal position, that is, the flip plate B5.5 is parallel to the positioning seat 2, and the clamping device clamps the flip plate B5.5 through the clamping support B5.4, and the rotation limiting positioning seat 5.8 and the movable latch B5.9 are inserted into the threaded hole of the product to be tested 8 to achieve angular positioning of the product to be tested;

[0038] 3. Pull down the flip plates A3.5 of the two flip measurement assemblies 3 to the horizontal position in sequence, that is, the flip plates A3.5 are parallel to the positioning seat 2, and the clamping device clamps the flip plates A3.5 through the clamping support A3.4, and insert the two sets of high and low detection positioning seats A3.9 and the movable latch A3.10 into the two threaded holes on the surface of the product to be tested 8, respectively, to detect the hole position and end face profile;

[0039] Fourth, place the ball position measuring assembly 7 on the rotary positioning shaft 6: put the bushing 7.3 of the ball position measuring assembly on the rotary positioning seat 10, the detection block 7.2 rotates around the rotary positioning shaft 6, driving the limit pin 7.6 to rotate, when the limit pin 7.6 rotates to the top of the slot, the compression spring 7.5 releases the accumulated potential energy to apply downward pressure to the limit pin 7.6, and the limit pin 7.6 is inserted into the slot of the positioning block 11, so as to realize the rotation limit of the detection block 7.2 on the rotary positioning seat 10, and avoid the rotation friction between the detection block 7.2 and the rotary positioning seat 10. The lower end surface of the detection block 7.2 is firmly attached to the positioning block 11, and the rotary positioning seat 10 drives the detection block 7.2 to rotate around the rotary positioning shaft 6 for one circle, and observe whether the spherical surfaces of the two detection heads at both ends of the detection block 7.2 are in contact with the spherical surface of the product to be measured. If the spherical surfaces of the detection heads at both ends of the detection block 7.2 are in contact with the spherical surface of the product to be measured, it is determined that the size, position and contour of the spherical surface diameter of the product to be measured are unqualified, otherwise, they are qualified;

[0040] 5. After the measurement is completed, the ball position measurement component 7 is placed on the mounting frame, and the flip plates of the two flip measurement components 3 and the one angular positioning component 5 are pulled up to the loose state in turn, and the product to be measured is manually removed to complete the single product measurement.

[0041] The utility model discloses a high-precision spherical position and contour detection device, a combination of thrust bearing + steel ball bushing is adopted between the rotary positioning shaft 6 and the rotary positioning seat 10, and the limit pin 7.6 cooperates with the slot of the positioning block 11 to realize the rotation limit of the ball position measuring component 7, thereby effectively ensuring the axial and radial rotary positioning accuracy of the ball position measuring component 7. The rotary positioning shaft 6 rotates smoothly, wear-resistant, stable and efficient, which greatly improves the detection efficiency and the service life of the inspection fixture.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A high-precision spherical position and profile detection device, characterized in that: It includes a gauge base, on which a positioning seat, a flip measuring assembly and an angular positioning assembly are arranged, the flip measuring assembly and the angular positioning assembly are arranged at intervals on the periphery of the positioning seat, a rotary positioning shaft is provided in the middle of the positioning seat, and a rotary positioning seat is rotatably connected to the top of the rotary positioning shaft, and the ball position measuring assembly is sleeved on the rotary positioning seat. When working, the product to be tested is placed on the positioning seat, and the positioning seat and the angular positioning assembly cooperate to realize the positioning of the product to be tested, the flip measuring assembly is used to detect the surface hole position and end face contour of the product to be tested, and the ball position measuring assembly is used to detect whether the size, position and contour of the spherical diameter of the product to be tested are qualified.

2. The high-precision spherical position and contour detection device according to claim 1 is characterized in that: The ball position measurement component includes a strip-shaped detection block, the center of the bottom of the detection block is sleeved on the rotary positioning seat and is gap-matched with the rotary positioning seat, and downwardly extending detection heads are respectively arranged at both ends of the bottom of the detection block. The two detection heads are symmetrically arranged, and the opposite surfaces of the two detection heads are spherical structures that match the spherical surface of the product to be tested. A number of drill holes penetrating the upper and lower end surfaces of the detection block are arranged at intervals on the detection block, and limit pins are correspondingly arranged in the drill holes, and the upper end of the limit pin is connected to one end of the compression spring, and the other end of the compression spring is connected to the stop block.

3. The high-precision spherical position and contour detection device according to claim 2 is characterized in that: The bottom of the rotary positioning shaft is fixedly connected to the positioning seat, and the top of the rotary positioning shaft is a reduced diameter structure. A thrust bearing B, a steel ball bushing and a thrust bearing A are arranged in sequence from top to bottom between the top of the rotary positioning shaft and the rotary positioning seat. The steel ball bushing is interference fit with the rotary positioning shaft. A step extending radially outward along the rotary positioning shaft is provided at the lower end of the rotary positioning seat. A positioning block is fixedly connected to the step. The upper end face of the positioning block contacts the lower end face of the detection block. A plurality of slots are arranged at intervals along the circumference of the top of the positioning block. The slots are matched with the limit pins. When the detection block drives the limit pin to rotate above the slots, the limit pins can be inserted into the slots to realize the rotation limit of the detection block on the rotary positioning seat.

4. The high-precision spherical position and contour detection device according to claim 3 is characterized in that: The positioning seat is horizontally arranged on the inspection fixture base, and a plurality of raised arc-shaped ribs are arranged at intervals on the top edge of the positioning seat. The arc-shaped ribs and the connecting lines between the arc-shaped ribs together enclose a circular ring, and the circular ring is concentrically arranged with the rotary positioning shaft, and the inner diameter of the circular ring is equal to the outer diameter of the inner edge of the bottom of the product to be tested. An angular positioning component and two flip measurement components are arranged at intervals along the circumference of the positioning seat, and the flip measurement component and the angular positioning component are respectively fixed on the inspection fixture base.

5. The high-precision spherical position and contour detection device according to claim 3 is characterized in that: The measuring assembly includes a flip plate A. A surface height detection positioning seat A and a movable latch A are arranged at the bottom of one end of the flip plate A adjacent to the positioning seat. The other end of the flip plate A is rotatably connected to a vertically arranged bracket A through a rotating shaft A. When working, the flip plate A can drive the surface height detection positioning seat A and the movable latch A to rotate. The height detection positioning seat A and the movable latch A are inserted into the threaded hole of the product to be tested to detect the hole position and end face contour.

6. The high-precision spherical position and contour detection device according to claim 3 is characterized in that: The angular positioning assembly includes a flip plate B. A rotation limiting positioning seat and a movable latch B are arranged at the bottom of one end of the flip plate B adjacent to the positioning seat. The other end of the flip plate B is rotatably connected to a vertically arranged bracket B through a rotating shaft B. When working, the flip plate B can drive the rotation limiting positioning seat and the movable latch B to rotate, and the rotation limiting positioning seat and the movable latch B are inserted into the surface hole of the product to be tested to realize angular positioning.

7. The high-precision spherical position and contour detection device according to claim 5 is characterized in that: A U-shaped first axis groove is provided at the top of the bracket A, and the rotating shaft A is provided at one end of the first axis groove away from the positioning seat. The rotating shaft A passes through one end of the flip plate A and is rotatably connected to the flip plate A. Limit blocks for limiting the rotation angle of the flip plate A around the rotating shaft A are respectively provided at both ends of the first axis groove.

8. The high-precision spherical position and contour detection device according to claim 6 is characterized in that: A U-shaped second axis groove is provided on the top of the bracket B, and the rotating shaft B is provided at one end of the second axis groove away from the positioning seat. The rotating shaft B passes through one end of the flip plate B and is rotatably connected to the flip plate B. Limit blocks for limiting the rotation angle of the flip plate B around the rotating shaft B are respectively provided at both ends of the second axis groove.

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