A roundness correcting machine

Abstract

The present invention discloses a circularity correcting machine, which comprises a supporting mechanism, a driving mechanism, a first detecting mechanism, a correcting mechanism and a controller; the supporting mechanism is adapted to support the first end face of the annular workpiece; the driving mechanism comprises a rotating assembly and a positioning assembly, the rotating assembly and the positioning assembly cooperate to support the annular workpiece, the rotating assembly is adapted to support the annular workpiece on one side of the inner ring of the annular workpiece and drive the annular workpiece to rotate on the supporting mechanism; the positioning assembly is adapted to be suspended on the other side of the inner ring of the annular workpiece by its own gravity; the controller is adapted to control the correcting mechanism to apply pressure to the annular workpiece according to the roundness of the inner ring of the annular workpiece detected by the first detecting mechanism, so that the roundness of the inner ring of the annular workpiece is qualified. Based on the support and positioning of the annular workpiece by the supporting mechanism, the rotating assembly and the positioning assembly, the rotating assembly, the first detecting mechanism and the correcting mechanism cooperate to enable the annular workpiece to rotate smoothly and effectively correct the roundness of the inner ring of the annular workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of calibration equipment, and particularly relates to a roundness calibrator. Background Art

[0002] In the prior art, during the manufacturing process of some annular workpieces, strict requirements are imposed on their roundness, especially for annular workpieces such as gears.

[0003] Gears are important components in various large-scale machines. They are prone to deformation during the gear shaping process, resulting in the inability to guarantee their roundness. Especially when the size of the gear is relatively large, the gear is more likely to deform during the gear shaping process. Such a gear ring cannot meet the requirements of the performance of large-scale machines. Therefore, it is necessary to calibrate its inner ring to ensure that the gear can meet the requirements of the performance of large-scale machines.

[0004] For gears with unqualified inner ring roundness, the existing devices cannot effectively drive the gears to rotate smoothly around their axes. That is, the existing devices cannot, on the premise that the gears rotate smoothly around their axes, further effectively detect the roundness of the inner rings of the gears and accurately calibrate them. Summary of the Invention

[0005] The present invention provides a roundness calibrator to ensure effective roundness detection and calibration of the inner ring of a gear on the premise that the gear rotates smoothly around its axis.

[0006] A roundness calibrator disclosed by the present invention is suitable for calibrating the inner ring of an annular workpiece; the roundness calibrator includes a support mechanism, a driving mechanism, a first detection mechanism, a calibration mechanism, and a controller;

[0007] The driving mechanism, the first detection mechanism, and the calibration mechanism are all arranged on the support mechanism;

[0008] The support mechanism is suitable for supporting the first end face of the annular workpiece;

[0009] The driving mechanism includes a rotating component and a positioning component;

[0010] The rotating component and the positioning component cooperate to support the annular workpiece. Among them, the rotating component is suitable for supporting the annular workpiece on one side of the inner ring of the annular workpiece and driving the annular workpiece to rotate on the support mechanism, and the positioning component is suitable for hanging on the other side of the inner ring of the annular workpiece by its own gravity;

[0011] The first detection mechanism is suitable for detecting the roundness of the inner ring of the annular workpiece;

[0012] The controller is adapted to control the correction mechanism to apply pressure to the annular workpiece according to the detection result of the first detection mechanism, so that the roundness of the inner ring of the annular workpiece is qualified. Based on the effective support and positioning of the annular workpiece by the support mechanism, the rotating assembly and the positioning assembly, the annular workpiece rotates smoothly around its axis through the cooperation of the rotating assembly, the first detection mechanism and the correction mechanism, and the roundness of the inner ring of the annular workpiece is effectively corrected according to the detection result of the first detection mechanism.

[0013] Optionally, the positioning assembly includes a slider, a mounting plate, a positioning bearing and a retaining plate;

[0014] The slider is slidably arranged on the support mechanism, and the slider is adapted to slide up and down along the radial direction of the annular workpiece;

[0015] One end of the mounting plate is connected to the slider, the other end of the mounting plate is provided with a mounting shaft, and the retaining plate is arranged on the mounting shaft;

[0016] The positioning bearing is rotatably sleeved on the mounting shaft, and the positioning bearing is located between the mounting plate and the retaining plate;

[0017] The mounting shaft is adapted to abut against the inner ring of the annular workpiece through the outer ring of the positioning bearing. With the above scheme, the positioning assembly is suspended on the other side of the inner ring of the annular workpiece by its own gravity, and the inner ring of the annular workpiece is in rolling contact through the positioning bearing.

[0018] Optionally, the positioning assembly is of a symmetrical structure; the positioning assembly includes at least two mounting shafts;

[0019] The at least two mounting shafts are symmetrically distributed, and each mounting shaft is sleeved with the positioning bearing. With the above scheme, the positioning assembly can effectively position the inner ring of the annular workpiece.

[0020] Optionally, the positioning assembly further includes a counterweight;

[0021] The counterweight is arranged on the mounting plate. With the above scheme, different counterweights can be selected and assembled on the mounting plate according to the specifications of the annular workpiece.

[0022] Optionally, the rotating assembly includes a rotating shaft, a rotating member, a driven wheel, a conveyor belt, a driving wheel and a rotation driving module;

[0023] The rotating shaft is rotatably arranged on the support mechanism;

[0024] The rotating member is made of POM material, and the rotating member is rotatably sleeved on the rotating shaft;

[0025] The driven wheel is fixed to the rotating shaft;

[0026] The rotation driving module is arranged on the support mechanism. The driving end of the rotation driving module is connected to the driving wheel, and the driving wheel is in transmission connection with the driven wheel through the conveyor belt;

[0027] The rotation driving module is adapted to indirectly drive the rotating member to rotate, so that the outer peripheral wall of the rotating member drives the annular workpiece to rotate through friction. With the above solution, the rotating member drives the annular workpiece to rotate on the support mechanism through friction.

[0028] Optionally, the rotating assembly includes at least two of the rotating shafts;

[0029] The at least two rotating shafts are symmetrically distributed, and each rotating shaft is sleeved with the rotating member;

[0030] The detection end of the first detection mechanism is located between the at least two rotating shafts;

[0031] The pressing end of the correction mechanism is located between the at least two rotating shafts;

[0032] The pressing end of the correction mechanism is arranged opposite to the detection end of the first detection mechanism:

[0033] The controller is adapted to control the pressing end of the correction mechanism to press on the outer side of the annular workpiece according to the detection result of the first detection mechanism. With the above solution, it is ensured that the annular workpiece rotates smoothly on the support mechanism.

[0034] Optionally, the rotating assembly further includes a limiting member and a shock damping;

[0035] The rotation driving module is slidably arranged on the support mechanism;

[0036] The limiting member is adapted to limit the sliding stroke of the rotation driving module;

[0037] The shock damping is adapted to provide buffering for the sliding of the rotation driving module. With the above solution, the rotation driving module and the driving wheel are effectively protected.

[0038] Optionally, the first detection mechanism includes a first detection module, a connecting seat and a roller;

[0039] The connecting seat is fixed to the detection end of the first detection module;

[0040] The roller is mounted on the connecting seat; the roller is adapted to rollingly contact the inner ring of the annular workpiece. With the above solution, the friction between the detection end of the first detection module and the inner ring of the annular workpiece is effectively reduced.

[0041] Optionally, the support mechanism includes a support base, a fixed block, and a support bearing;

[0042] The drive mechanism, the first detection mechanism, and the correction mechanism are all arranged on the support base;

[0043] The fixed block is fixed on the support base;

[0044] The support bearing is rotatably arranged on the fixed block; the outer side wall of the outer ring of the support bearing is adapted to support the first end face of the annular workpiece. With the above solution, it effectively avoids friction between the annular workpiece and the support base, reduces the wear generated between the support mechanism and the annular workpiece, and further effectively protects the annular workpiece, so that the annular workpiece rotates smoothly, and the first detection mechanism effectively detects the roundness of the inner circle of the annular workpiece.

[0045] Optionally, the roundness correcting machine further includes a second detection mechanism;

[0046] The second detection mechanism is arranged on the support mechanism;

[0047] The second detection mechanism is adapted to detect the flatness of the end face of the annular workpiece. With the above solution, the flatness of the end face of the annular workpiece is detected.

[0048] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0049] On the basis that the support mechanism, the rotating assembly, and the positioning assembly effectively support and position the annular workpiece, through the cooperation of the rotating assembly, the first detection mechanism, and the correction mechanism, the annular workpiece rotates smoothly around its axis and effectively corrects the roundness of the inner circle of the annular workpiece according to the detection result of the first detection mechanism.

[0050] Through the cooperation of the rotating assembly and the positioning assembly, the inner circle of the annular workpiece is effectively positioned and the annular workpiece is driven to rotate smoothly around its axis. Among them, the rotating assembly effectively fits one side of the inner circle of the annular workpiece; the positioning assembly always fits the other side of the inner circle of the annular workpiece by its own weight, so that the drive mechanism drives the annular workpiece to rotate smoothly around its axis, ensuring the accuracy of the first detection mechanism to detect the roundness of the inner circle of the annular workpiece, and further ensuring that the correction mechanism can effectively correct the roundness of the inner circle of the annular workpiece.

[0051] The above description of the disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The following will further describe in detail the specific embodiments of the present invention with reference to the drawings.

[0053] Figure 1 Schematic structural diagram of the circularity correcting machine in the present invention;

[0054] Figure 2 Partial structural diagram (I) of the circularity correcting machine in the present invention;

[0055] Figure 3 Partial structural diagram (II) of the circularity correcting machine in the present invention;

[0056] Figure 4 Partial structural diagram of the driving mechanism and the support base in the present invention;

[0057] Figure 5 Distribution diagram of the rotating shaft and the annular workpiece in the present invention;

[0058] Figure 6 Schematic structural diagram of the positioning component in the present invention;

[0059] Figure 7 Schematic structural diagram of the first detection mechanism in the present invention;

[0060] Figure 8 Schematic diagram of the correction mechanism in the present invention;

[0061] Figure 9 Schematic diagram of the second detection mechanism detecting the annular workpiece in the present invention;

[0062] Figure 10 Schematic diagram of the support mechanism in the present invention.

[0063] Explanation of the reference numerals in the attached drawings:

[0064] 10. Support mechanism; 11. Support base; 111. Long waist hole; 112. Wire groove; 113. Cover plate; 114. Support plate; 12. Fixed block; 13. Support bearing; 14. Workbench; 15. Outer protective cover; 16. Safety light curtain;

[0065] 20. Driving mechanism; 21. Rotating assembly; 211. Rotating shaft; 212. Rotating part; 213. Driven wheel; 214. Conveyor belt; 215. Driving wheel; 216. Rotating drive module; 2161. First mounting frame; 2162. First lifting cylinder; 2163. Driving motor; 217. Limiting part; 218. Shock damping; 22. Positioning component; 221. Slide block; 222. Mounting plate; 223. Positioning bearing; 224. Anti - detachment plate; 225. Counterweight;

[0066] 30. First detection mechanism; 31. First detection module; 32. Connecting seat; 33. Roller;

[0067] 40. Calibration mechanism; 41. Second mounting bracket; 42. Servo motor; 43. Lead screw; 44. Press head;

[0068] 50. Second detection mechanism; 51. Second lifting cylinder; 52. Second detection module;

[0069] 60. Ring workpiece. Detailed implementation mode

[0070] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0071] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0072] Terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0073] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, terms such as "provided with", "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0074] The present invention provides a circularity correcting machine suitable for correcting the inner ring of a ring workpiece 60. In this embodiment, the ring workpiece 60 is a gear. This gear is an external gear, and its inner ring is the inner hole of the gear. The ring workpiece 60 has a first end face and a second end face that are oppositely arranged.

[0075] Please refer to Figure 1 and Figure 2 As shown, the circularity correction machine includes a support mechanism 10, a driving mechanism 20, a first detection mechanism 30, a correction mechanism 40, and a controller. The driving mechanism 20, the first detection mechanism 30, and the correction mechanism 40 are all arranged on the support mechanism 10. The support mechanism 10 is adapted to support the first end face of the annular workpiece 60. The driving mechanism 20 includes a rotating assembly 21 and a positioning assembly 22. The rotating assembly 21 and the positioning assembly 22 cooperate to support the annular workpiece 60. Among them, the rotating assembly 21 is adapted to support the annular workpiece 60 on one side of the inner ring of the annular workpiece 60 and drive the annular workpiece 60 to rotate on the support mechanism 10. The positioning assembly 22 is adapted to hang on the other side of the inner ring of the annular workpiece 60 by its own gravity. The first detection mechanism 30 is adapted to detect the roundness of the inner ring of the annular workpiece 60. The controller is adapted to control the correction mechanism 40 to apply pressure to the annular workpiece 60 according to the detection result of the first detection mechanism 30, so that the roundness of the inner ring of the annular workpiece 60 is qualified.

[0076] In the present invention, through the cooperation of the rotating assembly 21 and the positioning assembly 22, the inner ring of the annular workpiece 60 is effectively positioned and the annular workpiece 60 is driven to rotate smoothly around its axis. Among them, the rotating assembly 21 effectively fits on one side of the inner ring of the annular workpiece 60; the positioning assembly 22 always fits on the other side of the inner ring of the annular workpiece 60 by its own weight, so that the driving mechanism 20 drives the annular workpiece 60 to rotate smoothly around its axis, ensuring the accuracy of the first detection mechanism 30 to detect the roundness of the inner ring of the annular workpiece 60, and further ensuring that the correction mechanism 40 can effectively correct the roundness of the inner ring of the annular workpiece 60.

[0077] Please refer to Figure 2 and Figure 3 As shown, the support mechanism 10 includes a support base 11, a fixing block 12, and a support bearing 13. Specifically, the driving mechanism 20, the first detection mechanism 30, and the correction mechanism 40 are all arranged on the support base 11. The fixing block 12 is fixed on the support plate 114 of the support base 11. The support bearing 13 is rotatably arranged on the fixing block 12. The outer side wall of the outer ring of the support bearing 13 is adapted to support the first end face of the annular workpiece 60. The second end face of the annular workpiece 60 is away from the support plate 114.

[0078] In this embodiment, the support plate 114 is inclined. Preferably, the included angle between the support plate 114 and the horizontal direction is 45° - 60°.

[0079] In this embodiment, there are four fixing blocks 12. A support bearing 13 is arranged on each fixing block 12. The support plate 114 has a first surface and a second surface that are oppositely arranged. The fixing blocks 12 are fixed on the second surface of the support plate 114. The support bearing 13 is placed above the second surface of the support plate 114, and the axis direction of the support bearing 13 is parallel to the support plate 114. When the driving mechanism 20 drives the annular workpiece 60 to rotate, the outer side wall of the outer ring of the support bearing 13 effectively supports the first end face of the annular workpiece 60, effectively avoiding friction between the annular workpiece 60 and the support seat 11, reducing the wear generated between the support mechanism 10 and the annular workpiece 60, and thus effectively protecting the annular workpiece 60 so that the annular workpiece 60 rotates smoothly and the first detection mechanism 30 effectively detects the roundness of the inner ring of the annular workpiece 60.

[0080] Please refer to Figures 2 to 4 As shown, the rotating assembly 21 includes a rotating shaft 211, a rotating member 212, a driven wheel 213, a conveyor belt 214, a driving wheel 215, and a rotation driving module 216. Specifically, the rotating shaft 211 is rotatably arranged on the support plate 114. The rotating member 212 is made of POM material. The rotating member 212 is rotatably sleeved on the rotating shaft 211. The rotating member 212 is placed above the second surface of the support plate 114, and the axis direction of the rotating member 212 is perpendicular to the support plate 114. The driven wheel 213 is fixed to the rotating shaft 211. The rotation driving module 216 is arranged on the support mechanism 10. The driving end of the rotation driving module 216 is connected to the driving wheel 215, and the driving wheel 215 is in transmission connection with the driven wheel 213 through the conveyor belt 214. The rotation driving module 216 is adapted to indirectly drive the rotating member 212 to rotate so that the outer peripheral wall of the rotating member 212 drives the annular workpiece 60 to rotate through friction.

[0081] Among them, POM material is a kind of polyoxymethylene engineering plastic, which has excellent mechanical strength, self-lubrication, anti-fatigue property, and geometric stability.

[0082] In this embodiment, the driven wheel 213 is located between the rotating member 212 and the support plate 114. The conveyor belt 214 is placed above the second surface of the support plate 114.

[0083] Furthermore, in order to ensure that the rotating assembly 21 can stably support the inner ring of the annular workpiece 60, the rotating assembly 21 includes at least two rotating shafts 211. The pressing end of the correction mechanism 40 is located between the at least two rotating shafts 211. The pressing end of the correction mechanism 40 is oppositely arranged with the detection end of the first detection mechanism 30. The controller is adapted to control the pressing end of the correction mechanism 40 to press on the outer side of the annular workpiece 60 according to the detection result of the first detection mechanism 30.

[0084] In this embodiment, there are two rotating shafts 211, two driven wheels 213, and one driving wheel 215. The two rotating shafts 211 are symmetrically distributed left and right and are adapted to support the upper middle part of the inner ring of the annular workpiece 60. The two driven wheels 213 and one driving wheel 215 are arranged in a triangle. The driving wheel 215 is located below the driven wheels 213. The positioning assembly 22 is located below the two rotating shafts 211 and is adapted to position the lower middle part of the inner ring of the annular workpiece 60. A rotating member 212 is sleeved on each rotating shaft 211. The detection end of the first detection mechanism 30 and the pressing end of the calibration mechanism 40 are both located between the two rotating shafts 211. Preferably, the two rotating shafts 211 are symmetrically distributed on the left and right sides of the detection end of the first detection mechanism 30; the detection end of the first detection mechanism 30 is arranged opposite to the pressing end of the calibration mechanism 40, that is, the detection end of the first detection mechanism 30 is located below the pressing end of the calibration mechanism 40.

[0085] In this embodiment, please refer to Figure 5 As shown, the axis of one rotating shaft 211 is perpendicular to the second surface of the support plate 114, and the intersection of this axis and the second surface of the support plate 114 is point A; the axis of the other rotating shaft 211 is perpendicular to the second surface of the support plate 114, and the intersection of this axis and the second surface of the support plate 114 is point B. When the annular workpiece 60 is installed on the circularity correcting machine, the axis of the annular workpiece 60 is perpendicular to the second surface of the support plate 114, and the intersection of this axis and the second surface of the support plate 114 is point C. Among them, the connection line between point A and point C is the first line AC, and the connection line between point B and point C is the second line BC; the included angle α between the first line AC and the second line BC is 79° to 90°.

[0086] Furthermore, in order to enable the rotating assembly 21 to adapt to annular workpieces 60 with different inner diameters, the rotation drive module 216 is slidably arranged on the support plate 114. Specifically, please refer to Figure 4As shown in the figure, the rotation drive module 216 includes a first mounting bracket 2161, a first lifting cylinder 2162, and a drive motor 2163. A long slot 111 is formed in the support plate 114. The driving wheel 215 is passed through the long slot 111. One end of the driving wheel 215 is located above the support plate 114 and is in transmission connection with the driven wheel 213 through a conveyor belt 214. The other end of the driving wheel 215 is located below the support plate 114 and is connected to the driving end of the drive motor 2163. The drive motor 2163 is adapted to drive the driving wheel 215 to rotate. The drive motor 2163 is slidably disposed on the first surface of the support plate 114 through the first mounting bracket 2161. The first lifting cylinder 2162 is fixed to the first surface of the support plate 114 and is adapted to drive the first mounting bracket 2161 to slide, so as to adjust the position of the drive motor 2163, and further adjust the distance between the driving wheel 215 and the rotating shaft 211. Therefore, the driving mechanism 20 can adjust the distance between the driving wheel 215 and the rotating shaft 211 and replace the conveyor belt 214 with a corresponding specification to adapt to annular workpieces 60 with different inner diameters.

[0087] In this embodiment, the two rotating shafts 211 are symmetrically distributed on the left and right sides of the long slot 111.

[0088] Further, in order to effectively protect the rotation drive module 216 and the driving wheel 215, please refer to Figure 4 As shown in the figure, the rotating assembly 21 further includes a limiting member 217 and a shock absorber 218. Specifically, the limiting member 217 is adapted to limit the sliding stroke of the first mounting bracket 2161. The shock absorber 218 is adapted to provide buffering for the sliding of the first mounting bracket 2161.

[0089] In this embodiment, there are two limiting members 217, which are arranged on the first surface of the support plate 114 and are adapted to limit the highest and lowest points of the sliding stroke of the first mounting bracket 2161. The sliding stroke of the first mounting bracket 2161 is limited by the two limiting members 217 to prevent the driving wheel 215 from colliding with the edge of the long slot 111, so as to protect the driving wheel 215. There are two shock absorbers 218, which are arranged on the first surface of the support plate 114 and are adapted to provide buffering for the highest and lowest points of the sliding stroke of the first mounting bracket 2161, effectively protecting the rotation drive module 216 and the driving wheel 215.

[0090] Please refer to Figure 3 and Figure 6As shown, the positioning assembly 22 includes a slider 221, a mounting plate 222, a positioning bearing 223, and an anti - detachment plate 224. The slider 221 is slidably disposed on the support plate 114, and the slider 221 is adapted to slide up and down in the radial direction of the annular workpiece 60. One end of the mounting plate 222 is connected to the slider 221, and the other end of the mounting plate 222 is provided with a mounting shaft. The anti - detachment plate 224 is disposed on the mounting shaft. The positioning bearing 223 is rotatably sleeved on the mounting shaft, and the positioning bearing 223 is located between the mounting plate 222 and the anti - detachment plate 224. The mounting shaft is adapted to abut against the inner ring of the annular workpiece 60 through the outer ring of the positioning bearing 223.

[0091] In this embodiment, the positioning assembly 22 is placed above the second surface of the support plate 114. The slider 221 is located between the two rotating shafts 211. The positioning assembly 22 slides in the radial direction of the annular workpiece 60, and the two rotating shafts 211 are always symmetrically distributed on the left and right sides of the slider 221. When the positioning assembly 22 is adapted to be suspended by its own gravity on the other side of the inner ring of the annular workpiece 60 (i.e., the middle and lower part of the inner ring of the annular workpiece 60), the anti - detachment plate 224 and the mounting plate 222 are distributed on the front and rear sides of the annular workpiece 60, the positioning bearing 223 abuts against the inner ring of the annular workpiece 60, and the positioning bearing 223 is in rolling contact with the inner ring of the annular workpiece 60.

[0092] In some embodiments, the support plate 114 is provided with a dovetail groove slidably connected to the slider 221 to prevent the slider 221 from accidentally detaching from the support plate 114.

[0093] Furthermore, the positioning assembly 22 is a symmetric structure. The positioning assembly 22 includes at least two mounting shafts. At least two mounting shafts are symmetrically distributed, and a positioning bearing 223 is sleeved on each mounting shaft. In this embodiment, the mounting plate 222 is in a Y - shape and is disposed below the driving wheel 215. The mounting plate 222 is parallel to the support plate 114. There are two mounting shafts.

[0094] Furthermore, the positioning assembly 22 further includes a counterweight 225. The counterweight 225 is disposed on the mounting plate 222 so that the positioning assembly 22 can be suspended by its own gravity on the other side of the inner ring of the annular workpiece 60. In this embodiment, the counterweight 225 is detachably disposed on the mounting plate 222. The staff can select different counterweights 225 according to the specifications of the annular workpiece 60 and assemble them on the mounting plate 222.

[0095] Please refer to Figure 2 and Figure 7As shown in the figure, the first detection mechanism 30 includes a first detection module 31, a connecting seat 32, and a roller 33. Specifically, the first detection module 31 is disposed on the second surface of the support plate 114. A connecting seat 32 is fixed to the detection end of the first detection module 31 (i.e., the detection end of the first detection mechanism 30). The roller 33 is mounted on the connecting seat 32. The roller 33 is adapted to rollingly contact the inner ring of the annular workpiece 60, effectively reducing the friction between the detection end of the first detection module 31 and the inner ring of the annular workpiece 60.

[0096] In this embodiment, the first detection module 31 is a displacement sensor. A first elastic probe (i.e., the detection end of the first detection module 31) is provided on the first detection module 31. Specifically, the controller performs coordinate transformation and data fusion according to the position parameters detected by the displacement detection sensor, and then uses the least squares fitting method to obtain the diameter of the fitting circle of the annular workpiece 60, and subtracts the minimum value from the maximum value to obtain the out-of-roundness of the annular workpiece 60. Among them, using a displacement sensor to detect the roundness / out-of-roundness of the inner ring of the annular workpiece 60 is a prior art, so it will not be elaborated here. Thereafter, the controller is adapted to control the correction mechanism 40 to apply pressure to the annular workpiece 60 according to the detection result of the first detection mechanism 30, so that the roundness of the inner ring of the annular workpiece 60 is qualified.

[0097] In this embodiment, the first detection module 31 is fixed to the support plate 114 through the connecting seat 32. A waist-shaped hole is provided on the connecting seat 32, and the connecting seat 32 is fixed to the support plate 114 through the cooperation of the bolt and the waist-shaped hole, so that the staff can adjust the relative position of the bolt and the waist-shaped hole according to different specifications of the annular workpiece 60, and further adjust the position of the detection end of the first detection module 31.

[0098] In this embodiment, please refer to Figure 3 As shown in the figure, a wire groove 112 is provided on the second surface of the support plate 114 for placing the cable of the first detection module 31. In addition, a cover plate 113 is covered on the wire groove 112 to prevent the cable of the first detection module 31 from interfering with the conveyor belt 214, effectively protecting the cable of the first detection module 31.

[0099] Please refer to Figure 1 and Figure 8 As shown in the figure, the correction mechanism 40 includes a second mounting bracket 41, a servo motor 42, a lead screw 43, and a pressing head 44 (i.e., the pressure application end of the correction mechanism 40). In this embodiment, the second mounting bracket 41 is fixed to the support base 11 and is located above the support plate 114. The servo motor 42 is disposed on the second mounting bracket 41. The lead screw 43 is rotatably mounted on the second mounting bracket 41, and one end of the lead screw 43 is connected to the driving end of the servo motor 42. The pressing head 44 is slidably disposed on the second mounting bracket 41 and is threadedly connected to the lead screw 43. The servo motor 42 is adapted to drive the pressing head 44 to slide on the second mounting bracket 41 through the lead screw 43.

[0100] In this embodiment, the indenter 44 is along the radial direction of the annular workpiece 60, and the two rotating shafts 211 are symmetrically distributed on the left and right sides of the indenter 44. The indenter 44 is adapted to apply pressure to the outer side of the annular workpiece 60 so that the roundness of the inner ring of the annular workpiece 60 is qualified.

[0101] Further, please refer to Figure 1 and Figure 9 As shown, the circularity correcting machine further includes a second detection mechanism 50. The second detection mechanism 50 is arranged on the support mechanism 10. The second detection mechanism 50 is adapted to detect the flatness of the end face of the annular workpiece 60. Specifically, the second detection mechanism 50 includes a second lifting cylinder 51 and a second detection module 52. The fixed end of the second lifting cylinder 51 is fixed on the second surface of the support plate 114. The second detection module 52 is arranged on the lifting end of the second lifting cylinder 51 through a connecting frame. The staff drives the second lifting cylinder 51 to lift according to different specifications of the annular workpiece 60 so that the second detection module 52 can effectively detect the flatness of the end face of the annular workpiece 60.

[0102] In this embodiment, the second detection module 52 is a displacement sensor. A second elastic probe is arranged on the second detection module 52 and is adapted to detect the second end face of the annular workpiece 60. Among them, using a displacement sensor to detect the flatness of the end face of the annular workpiece 60 is a prior art, so it will not be elaborated here.

[0103] In this embodiment, the controller is respectively connected to the first lifting cylinder 2162, the driving motor 2163, the first detection module 31, the servo motor 42, the second lifting cylinder 51 and the second detection module 52.

[0104] Further, in order to better improve the safety of the circularity correcting machine, please refer to Figure 10 As shown, the support mechanism 10 further includes a workbench 14, an outer protective cover 15, a safety grating 16 and a warning device. Among them, the outer protective cover 15 covers the top of the workbench 14. The support base 11 is arranged on the top of the workbench 14 and is located inside the outer protective cover 15. The driving mechanism 20, the first detection mechanism 30, the correction mechanism 40 and the second detection mechanism 50 are all placed inside the outer protective cover 15. An operation opening is formed in the side wall of the outer protective cover 15 close to the second surface of the support plate 114. The safety grating 16 is arranged at the edge of the operation opening. Both the safety grating 16 and the warning device are connected to the controller. When the circularity correcting machine corrects the inner ring of the annular workpiece 60, if the body or auxiliary tool of a staff member extends into the operation opening, the controller controls the warning device to give a warning according to the feedback of the safety grating 16.

[0105] The working principle of this embodiment is as follows:

[0106] Place the annular workpiece 60 on the driving mechanism 20; wherein, the two rotating shafts 211 support the upper middle part of the inner ring of the annular workpiece 60 through the corresponding rotating members 212. The positioning assembly 22 is suspended by its own gravity at the lower middle part of the inner ring of the annular workpiece 60 to position the annular workpiece 60.

[0107] The controller controls the driving motor 2163 to operate so that the rotating member 212 drives the inner ring of the annular workpiece 60 to rotate on the supporting mechanism 10 through friction;

[0108] During the rotation of the annular workpiece 60, the first detection mechanism 30 detects the roundness of the inner ring of the annular workpiece 60;

[0109] Thereafter, the controller is adapted to control the correction mechanism 40 to apply pressure to the annular workpiece 60 according to the detection result of the first detection mechanism 30, so that a part of the annular workpiece 60 deforms, and then the roundness of the inner ring of the annular workpiece 60 is qualified.

[0110] Based on the effective support and positioning of the annular workpiece by the supporting mechanism, the rotating assembly and the positioning assembly, the annular workpiece rotates smoothly around its axis through the cooperation of the rotating assembly, the first detection mechanism and the correction mechanism, and the roundness of the inner ring of the annular workpiece is effectively corrected according to the detection result of the first detection mechanism. Through the cooperation of the rotating assembly and the positioning assembly, the inner ring of the annular workpiece is effectively positioned and the annular workpiece is driven to rotate smoothly around its axis. Among them, the rotating assembly effectively fits one side of the inner ring of the annular workpiece; the positioning assembly always fits the other side of the inner ring of the annular workpiece by its own weight, so that the driving mechanism drives the annular workpiece to rotate smoothly around its axis, ensuring the accuracy of the first detection mechanism to detect the roundness of the inner ring of the annular workpiece, and further ensuring that the correction mechanism can effectively correct the roundness of the inner ring of the annular workpiece.

[0111] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A circularity correcting machine is adapted to correct the inner ring of an annular workpiece (60), characterized in that, The circularity correcting machine includes: a support mechanism (10), a driving mechanism (20), a first detection mechanism (30), a correction mechanism (40), and a controller; The driving mechanism (20), the first detection mechanism (30), and the correction mechanism (40) are all arranged on the support mechanism (10); The support mechanism (10) is adapted to support the first end face of the annular workpiece (60); The driving mechanism (20) includes: a rotating assembly (21) and a positioning assembly (22); The rotating assembly (21) and the positioning assembly (22) cooperate to support the annular workpiece (60). Among them, the rotating assembly (21) is adapted to support the annular workpiece (60) on one side of the inner ring of the annular workpiece (60) and drive the annular workpiece (60) to rotate on the support mechanism (10), and the positioning assembly (22) is adapted to hang on the other side of the inner ring of the annular workpiece (60) by its own gravity; The first detection mechanism (30) is adapted to detect the roundness of the inner ring of the annular workpiece (60); The controller is adapted to control the correction mechanism (40) to apply pressure to the annular workpiece (60) according to the detection result of the first detection mechanism (30), so that the roundness of the inner ring of the annular workpiece (60) is qualified.

2. The circularity correcting machine according to claim 1, wherein The positioning assembly (22) includes: a slider (221), a mounting plate (222), a positioning bearing (223), and an anti - detachment plate (224); The slider (221) is slidably arranged on the support mechanism (10), and the slider (221) is adapted to slide up and down along the radial direction of the annular workpiece (60); One end of the mounting plate (222) is connected to the slider (221), and the other end of the mounting plate (222) is provided with a mounting shaft, and the anti - detachment plate (224) is arranged on the mounting shaft; The positioning bearing (223) is rotatably sleeved on the mounting shaft, and the positioning bearing (223) is located between the mounting plate (222) and the anti - detachment plate (224); The mounting shaft is adapted to abut against the inner ring of the annular workpiece (60) through the outer ring of the positioning bearing (223).

3. The circularity correcting machine according to claim 2, characterized in that, The positioning assembly (22) is a symmetric structure; the positioning assembly (22) includes: at least two mounting shafts; The at least two mounting shafts are symmetrically distributed, and the positioning bearing (223) is sleeved on each mounting shaft.

4. The circularity correcting machine according to claim 2, wherein The positioning assembly (22) further includes: a counterweight (225); The counterweight (225) is arranged on the mounting plate (222).

5. The circularity correcting machine according to claim 2, characterized in that, The rotating assembly (21) includes: a rotating shaft (211), a rotating member (212), a driven wheel (213), a conveyor belt (214), a driving wheel (215), and a rotation driving module (216); The rotating shaft (211) is rotatably arranged on the support mechanism (10); The material of the rotating member (212) is POM material, and the rotating member (212) is rotatably sleeved on the rotating shaft (211); The driven wheel (213) is fixed to the rotating shaft (211); The rotation drive module (216) is arranged on the support mechanism (10), the drive end of the rotation drive module (216) is connected to the driving wheel (215), and the driving wheel (215) is in transmission connection with the driven wheel (213) through the conveyor belt (214); The rotation drive module (216) is adapted to indirectly drive the rotating member (212) to rotate, so that the outer peripheral wall of the rotating member (212) drives the annular workpiece (60) to rotate through friction.

6. The centering machine according to claim 5, characterized in that, The rotation assembly (21) includes: at least two of the rotation shafts (211); The at least two rotation shafts (211) are symmetrically distributed, and each rotation shaft (211) is sleeved with the rotating member (212); The detection end of the first detection mechanism (30) is located between the at least two rotation shafts (211); The pressing end of the correction mechanism (40) is located between the at least two rotation shafts (211); The pressing end of the correction mechanism (40) is arranged opposite to the detection end of the first detection mechanism (30): The controller is adapted to control the pressing end of the correction mechanism (40) to press on the outer side of the annular workpiece (60) according to the detection result of the first detection mechanism (30).

7. The circularity correcting machine according to claim 5, characterized in that, The rotation assembly (21) further includes: a limiting member (217) and a shock damper (218); The rotation drive module (216) is slidably arranged on the support mechanism (10); The limiting member (217) is adapted to limit the sliding stroke of the rotation drive module (216); The shock damper (218) is adapted to provide buffering for the sliding of the rotation drive module (216).

8. The roundness correcting machine according to claim 1, wherein The first detection mechanism (30) includes: a first detection module (31), a connecting seat (32) and a roller (33); The connecting seat (32) is fixed to the detection end of the first detection module (31); The roller (33) is mounted on the connecting seat (32); the roller (33) is adapted to rollingly contact the inner ring of the annular workpiece (60).

9. The circularity correcting machine according to claim 1, wherein, The support mechanism (10) includes: a support base (11), a fixing block (12) and a support bearing (13); The drive mechanism (20), the first detection mechanism (30) and the correction mechanism (40) are all arranged on the support base (11); The fixing block (12) is fixed on the support base (11); The support bearing (13) is rotatably arranged on the fixing block (12); the outer side wall of the outer ring of the support bearing (13) is adapted to support the first end face of the annular workpiece (60).

10. The circle correcting machine according to claim 1, wherein, Further included is: A second detection mechanism (50); The second detection mechanism (50) is arranged on the support mechanism (10); The second detection mechanism (50) is adapted to detect the flatness of the end face of the annular workpiece (60).

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