Full-automatic plane bearing part size measuring machine

Abstract

The invention relates to the technical field of bearing processing, in particular to a full-automatic plane bearing part size measuring machine which comprises a rack, a retainer size measuring device and a thrust piece size measuring device, the retainer size measuring device or the thrust piece size measuring device comprises a stock bin, a feeding mechanism, a carrying mechanism, a size measuring mechanism, a flatness measuring mechanism and a discharging conveying mechanism. Through cooperation of the stock bin, the feeding mechanism, the carrying mechanism, the size measuring mechanism, the flatness measuring mechanism and the discharging conveying mechanism, size detection and flatness detection of workpieces of various different specifications can be achieved, so that the precision of follow-up products after assembly is guaranteed, the yield and the production efficiency are greatly improved, and the product quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of bearing processing, and in particular to a full-automatic plane bearing part dimension measuring machine. Background Art

[0002] Existing plane bearings are generally composed of cages, thrust plates, etc. Figure 1 As shown, the retainer A and the thrust plate B are both annular structures, and are generally assembled together using automated equipment in the prior art.

[0003] For example, the applicant previously applied for a fully automatic plane bearing assembly and component height measurement integrated machine (CN112160996A), which measures the height of the thrust plate of the plane bearing and then assembles it with the cage. However, the device did not take into account the flatness of the thrust plate and the cage at that time, resulting in the need for rework or even scrapping of the assembled product due to flatness issues, thus affecting processing efficiency and production costs. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a fully automatic plane bearing part dimension measuring machine which can adapt to the detection of various products and greatly improve product quality.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a fully automatic plane bearing part dimension measuring machine, comprising a frame and a retainer dimension measuring device and a thrust piece dimension measuring device arranged on the frame, wherein the retainer dimension measuring device or the thrust piece dimension measuring device comprises a silo, a feeding mechanism, a conveying mechanism, a dimension measuring mechanism, a flatness measuring mechanism and a discharging conveying mechanism;

[0007] The silo is used to store the retainer or the thrust piece, and includes a plurality of material rod assemblies capable of positioning the retainer or the thrust piece and a material rod drive connected to the material rod assemblies;

[0008] The feeding mechanism is used to grab the retaining frame or thrust plate in the silo and send it to the downstream workstation, including a feeding manipulator and a feeding drive connected to the feeding manipulator;

[0009] The transport mechanism is used to clamp the retaining frame or the thrust plate and transport it to the subsequent workstation, including a transport robot and a transport drive connected to the transport robot;

[0010] The dimension measuring mechanism is used to measure the outer diameter of the retaining frame or the thrust plate, and includes a positioning platform assembly and a camera system correspondingly arranged above the positioning platform assembly;

[0011] The flatness measuring mechanism is used to measure the flatness of the retaining frame or thrust piece, and includes a rotating platform, a rotating drive, a weight block, a lifting shaft, a lifting drive and a displacement sensor. The rotating platform can position the retaining frame or thrust piece, the rotating drive is connected to the rotating platform, and the lifting drive is connected to the lifting shaft. The weight block is sleeved on the bottom end of the lifting shaft, and the weight block can slide up and down along the lifting shaft. The displacement sensor is correspondingly arranged below the weight block and can contact the bottom end surface of the weight block. The lifting drive can drive the lifting shaft to descend, so that the bottom end of the weight block is sleeved with the retaining frame or thrust piece, and the displacement sensor is in contact with the bottom end surface of the weight block. The rotating drive can drive the rotating platform to rotate, thereby driving the retaining frame or thrust piece and the weight block to rotate. The displacement sensor can sense the jumping of the weight block to obtain the flatness of the retaining frame or thrust piece.

[0012] The discharging conveying mechanism is used to deliver the tested retaining frame or thrust piece, and comprises a discharging conveying belt.

[0013] In order to facilitate the all-round movement of the handling robot, the handling drive includes front and rear slide rails, front and rear moving support plates, front and rear moving servo motors, left and right slide rails, left and right moving support plates and left and right moving electric cylinders. The front and rear moving support plates are slidably connected to the front and rear slide rails, the front and rear moving servo motor is connected to the front and rear moving support plates, the front and rear moving servo motor can drive the front and rear moving support plates to move forward and backward along the front and rear slide rails, the left and right slide rails are fixed on the front and rear moving support plates, the left and right moving support plates are slidably connected to the left and right slide rails, the left and right moving electric cylinders are connected to the left and right moving support plates, the left and right moving electric cylinders can drive the left and right moving support plates to move left and right along the left and right slide rails, and the handling robot is fixed on the left and right moving support plates.

[0014] In order to achieve simultaneous switching between different workstations to improve handling efficiency, the handling robot has multiple sets, including a handling clamping cylinder and a group of handling claws. The top surfaces of the two handling claws are provided with arc grooves that can lift and position the retaining frame or thrust plate.

[0015] In order to facilitate the dimensional measurement, the positioning platform assembly includes a positioning platform, a pallet and a pallet lifting cylinder. The pallet lifting cylinder is connected to the pallet and can drive the pallet to move up and down. The positioning platform is fixed on the pallet.

[0016] In order to facilitate the rotation of the workpiece, the rotary drive includes a rotary servo motor, a gear set and a rotary shaft. The rotary servo motor is connected to the rotary shaft through the gear set, and the rotary platform is fixed to the top of the rotary shaft.

[0017] In order to accurately sense whether the weight block is rotated into place, a positioning screw is fixed on the top of the weight block, and a photoelectric switch capable of sensing the positioning screw is fixed on one side of the lifting shaft.

[0018] In order to realize orderly discharging of workpieces and facilitate subsequent grabbing by the robot, at least one set of material blocking components is arranged on the discharging conveyor belt, and the material blocking component includes a material blocking cylinder, a material blocking block and an induction switch. The material blocking cylinder is connected to the material blocking block, and the material blocking cylinder can drive the material blocking block to move forward and backward to block the retaining frame or thrust plate, and the induction switch is arranged on one side of the material blocking block.

[0019] In order to send out and collect unqualified workpieces, an NG discharge mechanism is also provided at the inlet end of the discharging conveying mechanism, which is used to send out unqualified retaining frames or thrust plates, including a support plate, a pushing cylinder, a pushing plate, a baffle and a material box. The pushing plate is slidably connected to the support plate and is correspondingly arranged at the feed port of the material box. The baffle is fixed to the top of the support plate. The pushing cylinder is connected to the pushing plate. The pushing cylinder can drive the pushing plate to move forward and backward along the support plate so that the unqualified retaining frame or thrust plate falls into the material box.

[0020] The beneficial effects of the present invention are as follows: the fully automatic plane bearing part dimension measuring machine can realize dimension detection and flatness detection of workpieces of various specifications through the coordination of a silo, a feeding mechanism, a handling mechanism, a dimension measuring mechanism, a flatness measuring mechanism and a discharging conveying mechanism, thereby ensuring the accuracy of subsequent product assembly, greatly improving the yield and production efficiency, and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the retaining frame and the thrust plate of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the fully automatic plane bearing part dimension measuring machine of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the silo of the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the feeding mechanism of the present invention;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the transport mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the dimension measuring mechanism of the present invention;

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the flatness measuring mechanism of the present invention;

[0028] Figure 8 is a cross-sectional view of the flatness measuring mechanism of the present invention;

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the NG discharge mechanism of the present invention;

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the discharging and conveying mechanism of the present invention. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0032] like Figure 2 A fully automatic plane bearing part dimension measuring machine shown in the figure includes a frame and a retainer dimension measuring device and a thrust plate dimension measuring device arranged on the frame. Since the retainer and the thrust plate are both annular structures, the structures of the various stations of the retainer dimension measuring device and the thrust plate dimension measuring device are basically the same, and both include a silo 2, a loading mechanism 3, a conveying mechanism 4, a dimension measuring mechanism 5, a flatness measuring mechanism 6 and a discharging conveying mechanism 8. In addition, an NG discharge mechanism 7 is also provided at the inlet end of the discharging conveying mechanism.

[0033] Specifically, combined Figure 3 As shown, the silo is used to store a retainer or a thrust piece, and includes a plurality of material rod assemblies 201 capable of positioning the retainer or the thrust piece and a material rod drive connected to the material rod assembly 201. The retainer or the thrust piece is sleeved on the material rod assembly 201. The material rod drive includes a rotating motor 203, a rotating disk 202 and a lifting motor 204. Each material rod assembly 201 is fixed on the rotating disk 202. The rotating motor 203 can drive the rotating disk 202 to rotate. The lifting motor 204 drives the retainer or the thrust piece on the material rod assembly 201 to move upward through the lifting seat, so as to facilitate the subsequent robot grasping. It should be noted that the structure of the silo is basically the same as that of the silo in the previous application.

[0034] Specifically, combined Figure 4 As shown, the feeding mechanism is used to grab the retaining frame or thrust piece in the silo and send it to the downstream workstation, including a feeding manipulator 301 and a feeding drive connected to the feeding manipulator 301, and the feeding drive includes a lifting cylinder 302 and a translation cylinder 303. The lifting cylinder 302 can drive the feeding manipulator 301 to lift up and down, and the translation cylinder 303 can drive the lifting cylinder 302 and the feeding manipulator 301 to translate up and down, and the feeding manipulator 301 can grab the retaining frame or thrust piece. It should be noted that the structure of the feeding mechanism is basically the same as that of the feeding mechanism in the prior application.

[0035] Specifically, combined Figure 5As shown, the transport mechanism is used to clamp the retaining frame or the thrust plate and send it to the back-end workstation, including a transport robot and a transport drive connected to the transport robot, the transport drive includes a front and rear slide rail 401, a front and rear movable support plate 402, a front and rear movable servo motor 408, a left and right slide rail 404, a left and right movable support plate 405 and a left and right movable electric cylinder 403, the front and rear movable support plate 402 is slidably connected to the front and rear slide rail 401, the front and rear movable servo motor 408 is connected to the front and rear movable support plate 402, the front and rear movable servo motor 408 can drive the front and rear movable support plate 402 to move forward and backward along the front and rear slide rail 401, and the left and right slide rails 404 are fixed to the front and rear movable support plate 405. The top surface of the support plate 402, the left-right movable support plate 405 is slidably connected to the left-right slide rails 404, the left-right movable electric cylinder 403 is connected to the left-right movable support plate 405, the left-right movable electric cylinder 403 can drive the left-right movable support plate 405 to move left and right along the left-right slide rails 404, the handling robot has multiple sets, fixed on the top surface of the left-right movable support plate 405, including a handling clamping cylinder 406 and a group of handling jaws 407, the top surfaces of the two handling jaws 407 are provided with arc grooves that can lift and position the retaining frame or thrust plate, in addition, the left-right movable support plate 405 is also provided with a push rod 409, which is used to push the retaining frame or thrust plate after the test is completed to the discharge conveying mechanism.

[0036] Specifically, combined Figure 6 As shown, the dimension measuring mechanism is used to measure the outer diameter of the retaining frame or the thrust plate, and includes a positioning table assembly and a camera system 501 correspondingly arranged above the positioning table assembly. The positioning table assembly includes a positioning table 504, a pallet 503 and a pallet lifting cylinder 502. The pallet lifting cylinder 502 is connected to the pallet 503. The positioning table 504 is fixed to the top surface of the pallet 503. The pallet lifting cylinder 502 can drive the pallet 503 to move up and down. The camera system 501 is correspondingly arranged above the positioning table 504.

[0037] Specifically, combined Figure 7 , Figure 8As shown, the flatness measuring mechanism is used to measure the flatness of the retaining frame or thrust piece, including a rotating platform 610, a rotating drive, a weight block 604, a lifting shaft 605, a lifting drive and a displacement sensor 607. The top of the rotating platform 610 can position the retaining frame or thrust piece. The rotating drive includes a rotating servo motor 601, a gear set 602 and a rotating shaft 603. The rotating servo motor 601 is connected to the rotating shaft 603 through the gear set 602. The rotating platform 610 is fixed to the top of the rotating shaft 603. The rotating servo motor 601 can drive the rotating platform 610 to rotate axially. The lifting drive includes a lifting cylinder 606, which is connected to the lifting shaft 605. The weight block 604 is sleeved on the bottom end of the lifting shaft 605. The weight block 604 can slide up and down along the lifting shaft 605. The bottom of the lifting shaft 605 It has a retaining spring that can limit the weight block 604. The bottom of the weight block 604 is conical, which is convenient for being socketed with a retaining frame or a thrust piece. A positioning screw 609 is fixed on the top of the weight block 604. A photoelectric switch 608 that can sense the positioning screw 609 is fixed on one side of the lifting shaft 605. The displacement sensor 607 is correspondingly arranged below the weight block 604 and can contact with the bottom end surface of the weight block 604. The lifting cylinder 606 can drive the lifting shaft 605 to descend, so that the bottom end of the weight block 604 is socketed with the retaining frame or the thrust piece, and the top contact of the displacement sensor 607 is in contact with the bottom end surface of the weight block 604. The rotary servo motor 601 can drive the rotating platform 604 to rotate, thereby driving the retaining frame or the thrust piece and the weight block 604 to rotate. The displacement sensor 607 can sense the vibration of the weight block 604 to obtain the flatness of the retaining frame or the thrust piece.

[0038] Specifically, combined Fig. 9 As shown, the NG discharge mechanism is used to send out unqualified retaining frames or thrust pieces, including a support plate 701, a pushing cylinder 704, a pushing plate 702, a baffle 703 and a material box 705. The pushing plate 702 is slidably connected to the top surface of the support plate 701 and is correspondingly arranged above the feed port of the material box 705. The baffle 703 is fixed to the top of the support plate 701. The pushing cylinder 704 is connected to the pushing plate 702. The pushing cylinder 704 can drive the pushing plate 702 to move forward and backward along the support plate 701 so that the unqualified retaining frames or thrust pieces fall into the material box 705.

[0039] Specifically, combined Fig.10As shown, the discharging conveying mechanism is used to deliver the tested retaining frame or thrust piece, including a discharging conveying belt 801, which is driven by a motor 802. A group of guide plates 803 are arranged on the discharging conveying belt 801, and the guide plates 803 can guide the discharging material. At least one set of material blocking components is arranged on the guide plates 803, and the material blocking components include a material blocking cylinder 804, a material blocking block 805 and an induction switch 806. The material blocking cylinder 804 is connected to the material blocking block 805, and the material blocking cylinder 804 can drive the material blocking block 805 to move forward and backward to block the retaining frame or thrust piece, and the induction switch 806 is arranged on one side of the material blocking block 805.

[0040] During processing, the cages and thrust pieces processed by the upper station are stacked on their respective rod assemblies 201 (the sizes or models of the cages and thrust pieces may vary according to actual conditions). The lifting motor 204 drives the cages and thrust pieces on the rod assembly 201 to move upward through the lifting seat. The loading manipulator 301 of the loading mechanism grabs the cages and thrust pieces and sends them to the subsequent station; the handling manipulator of the handling mechanism lifts the cages and thrust pieces and sends them to the positioning table 504 of the size measuring mechanism. The camera system 501 sends the photos of the retaining frame and the thrust piece to the system for matching, and measures the inner diameter and outer diameter of the retaining frame and the thrust piece. After the size measurement is completed, the handling manipulator of the handling mechanism lifts the retaining frame and the thrust piece and sends them to the rotating platform 610 of the flatness measuring mechanism. The lifting cylinder 606 drives the lifting shaft 605 to descend, so that the bottom end of the load block 604 is connected with the retaining frame or the thrust piece. At this time, the top contact of the displacement sensor 607 contacts the bottom end surface of the load block 604, that is, the load block 604 has There is a certain pressure, supported by the displacement sensor 607, the rotating servo motor 601 drives the rotating platform 604 to rotate, driving the retaining frame or thrust piece and the load block 604 to rotate. If the flatness of the retaining frame or thrust piece does not meet the standard, the displacement sensor 607 can sense the beating of the load block 604 to obtain the flatness of the retaining frame or thrust piece; after the flatness test is completed, the handling robot of the handling mechanism lifts the retaining frame and thrust piece and sends them to the pushing plate 702 of the NG discharge mechanism. If it is not up to standard, the displacement sensor 607 can sense the jumping of the load block 604 to obtain the flatness of the retaining frame or thrust piece. For qualified products, the push cylinder 704 drives the push plate 702 to move backward along the support plate 701. Under the action of the baffle 703, the unqualified retaining frame or thrust piece falls into the material box 705. If it is a qualified product, the push rod 409 on the handling mechanism pushes the qualified retaining frame or thrust piece to the discharge conveying mechanism; under the action of the discharge conveyor belt 801 and the guide plate 803, the qualified retaining frame and thrust piece are sent to the rear one by one in an orderly manner for the subsequent robot to grab and send to the subsequent equipment (fitting) for assembly.

[0041] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "between", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0042] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fully automatic plane bearing parts dimension measuring machine, characterized by: It includes a frame and a retainer size measuring device and a thrust piece size measuring device arranged on the frame, wherein the retainer size measuring device or the thrust piece size measuring device includes a silo, a feeding mechanism, a conveying mechanism, a size measuring mechanism, a flatness measuring mechanism and a discharging conveying mechanism; The silo is used to store the retainer or thrust piece, and includes a plurality of material rod assemblies capable of positioning the retainer or thrust piece and a material rod drive connected to the material rod assemblies; The feeding mechanism is used to grab the retaining frame or thrust plate in the silo and send it to the downstream workstation, including a feeding manipulator and a feeding drive connected to the feeding manipulator; The transport mechanism is used to clamp the retaining frame or the thrust plate and transport it to the subsequent workstation, including a transport robot and a transport drive connected to the transport robot; The dimension measuring mechanism is used to measure the outer diameter of the retaining frame or the thrust plate, and includes a positioning platform assembly and a camera system correspondingly arranged above the positioning platform assembly; The flatness measuring mechanism is used to measure the flatness of the retaining frame or thrust piece, and includes a rotating platform, a rotating drive, a weight block, a lifting shaft, a lifting drive and a displacement sensor. The rotating platform can position the retaining frame or thrust piece, the rotating drive is connected to the rotating platform, and the lifting drive is connected to the lifting shaft. The weight block is sleeved on the bottom end of the lifting shaft, and the weight block can slide up and down along the lifting shaft. The displacement sensor is correspondingly arranged below the weight block and can contact the bottom end surface of the weight block. The lifting drive can drive the lifting shaft to descend, so that the bottom end of the weight block is sleeved with the retaining frame or thrust piece, and the displacement sensor is in contact with the bottom end surface of the weight block. The rotating drive can drive the rotating platform to rotate, thereby driving the retaining frame or thrust piece and the weight block to rotate. The displacement sensor can sense the jumping of the weight block to obtain the flatness of the retaining frame or thrust piece. The discharging conveying mechanism is used to deliver the tested retaining frame or thrust piece, and comprises a discharging conveying belt.

2. The fully automatic plane bearing part dimension measuring machine according to claim 1 is characterized in that: The transport drive includes front and rear slide rails, front and rear moving support plates, front and rear moving servo motors, left and right slide rails, left and right moving support plates and left and right moving electric cylinders. The front and rear moving support plates are slidably connected to the front and rear slide rails, the front and rear moving servo motor is connected to the front and rear moving support plates, the front and rear moving servo motor can drive the front and rear moving support plates to move forward and backward along the front and rear slide rails, the left and right slide rails are fixed to the front and rear moving support plates, the left and right moving support plates are slidably connected to the left and right slide rails, the left and right moving electric cylinders are connected to the left and right moving support plates, the left and right moving electric cylinders can drive the left and right moving support plates to move left and right along the left and right slide rails, and the transport robot is fixed on the left and right moving support plates.

3. The fully automatic plane bearing part dimension measuring machine according to claim 2 is characterized in that: The transport manipulator has multiple sets, including a transport clamping cylinder and a group of transport clamping claws. The top surfaces of the two transport clamping claws are provided with arc grooves that can lift and position the retaining frame or the thrust plate.

4. The fully automatic plane bearing part dimension measuring machine according to claim 1 is characterized in that: The positioning platform assembly includes a positioning platform, a pallet and a pallet lifting cylinder. The pallet lifting cylinder is connected to the pallet and can drive the pallet to move up and down. The positioning platform is fixed on the pallet.

5. The fully automatic plane bearing part dimension measuring machine according to claim 1 is characterized in that: The rotary drive comprises a rotary servo motor, a gear set and a rotary shaft. The rotary servo motor is connected to the rotary shaft through the gear set, and the rotary platform is fixed to the top of the rotary shaft.

6. The fully automatic plane bearing part dimension measuring machine according to claim 5 is characterized in that: A positioning screw is fixed on the top of the weight block, and a photoelectric switch capable of sensing the positioning screw is fixed on one side of the lifting shaft.

7. The fully automatic plane bearing part dimension measuring machine according to claim 1 is characterized in that: At least one set of material blocking components is arranged on the discharging conveyor belt, and the material blocking component includes a material blocking cylinder, a material blocking block and an induction switch. The material blocking cylinder is connected to the material blocking block, and the material blocking cylinder can drive the material blocking block to move forward and backward to block the retaining frame or the thrust plate. The induction switch is arranged correspondingly on one side of the material blocking block.

8. The fully automatic plane bearing part dimension measuring machine according to claim 1 is characterized in that: The inlet end of the discharging conveying mechanism is also provided with an NG discharging mechanism for sending out unqualified retainers or thrust pieces, including a support plate, a pushing cylinder, a pushing plate, a baffle and a material box. The pushing plate is slidably connected to the support plate and is correspondingly arranged at the material box feed port. The baffle is fixed to the top of the support plate. The pushing cylinder is connected to the pushing plate. The pushing cylinder can drive the pushing plate to move forward and backward along the support plate so that the unqualified retainer or thrust piece falls into the material box.

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