Loading and unloading positioning table of bearing ring phosphating production line

Abstract

The invention discloses a feeding and discharging positioning table of a bearing ring phosphating production line. The feeding and discharging positioning table comprises a correcting table and an induction table. The correcting table comprises a correcting table base, a platform support, a platform plate, two transverse supporting plates, a longitudinal supporting plate, a transverse correcting mechanism, a longitudinal correcting mechanism and a correcting driving mechanism. The induction table comprises an induction table base, four pressure sensors and a bearing frame; the two long edges of the induction table base are higher than the two short edges of the induction table base; the four pressure sensors are installed on the top faces of the two heads of the two short edges of the induction table base in a one-to-one correspondence mode. The bearing frame is placed on the top faces of the four pressure sensors and arranged at the bottom of the correcting table, so that the four supporting columns of the correcting table base are suspended. The position of the phosphating material frame in the feeding and discharging area can be corrected, the loading state of the phosphating material frame can be recognized and fed back, and therefore the transmission speed and the phosphating treatment process of the phosphating material frame are automatically adjusted.

Description

Technical Field

[0001] This invention relates to a loading and unloading positioning table for a bearing ring phosphating production line. Background Technology

[0002] Phosphating is a common surface treatment method in the machinery manufacturing industry and an indispensable part of bearing manufacturing. It involves a chemical reaction to form a phosphate film on the metal surface, improving the metal's corrosion resistance and adhesion. In traditional bearing phosphating production lines, the fixture 10A, which carries the bearing races 1 for phosphating, cannot be removed from the production line. When the gantry crane moves the fixture 10A to the loading / unloading area, on-site workers are responsible for placing and removing the bearing races 1 one by one onto the fixture 10A. This production method requires multiple workers to complete the loading and unloading, resulting in high labor intensity, and production efficiency is limited by the speed of manual loading and unloading.

[0003] To reduce labor intensity, save manpower, and improve production efficiency, the phosphating process needs to be optimized so that the hanger 10A can be detached from the phosphating production line and moved around using the hanger transport trolley 10B (see Chinese Invention Patent Application No. 202411779536.8). Currently, the phosphating process is handled by AGV forklifts that place and retrieve the hanger transport trolley 10B in the loading and unloading area. Positional errors are easily generated when placing the hanger transport trolley 10B. Therefore, whenever the AGV forklift moves the hanger transport trolley 10B to the loading and unloading area, its position needs to be readjusted so that the overhead crane above the phosphating tank can accurately grab and place the hanger 10A. Furthermore, when the phosphating production line is in automatic mode, it is also necessary to confirm the product model and loading capacity carried by the hanger 10A and adjust the relevant phosphating process accordingly. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a loading and unloading positioning platform for a bearing ring phosphating production line. It can correct the position of the hanger transport trolley in the loading and unloading area and can identify and provide feedback on the loading status of the hanger transport trolley, thereby automatically adjusting the transmission speed of the hanger transport trolley and the phosphating process.

[0005] The objective of this invention is achieved as follows: a loading and unloading positioning platform for a bearing ring phosphating production line, comprising a straightening platform and an induction platform; wherein, The correction table includes a correction table base, a platform support, a platform plate, two transverse support plates, a longitudinal support plate, a transverse correction mechanism, a longitudinal correction mechanism, and a correction drive mechanism; The correction table base includes a rectangular base frame, two side columns fixed to the middle of the top surface of the two longitudinal beams of the base frame, and front left and front right columns fixed to the left and right sides of the top surface of the front crossbeam of the base frame, respectively. The height of the two side columns is greater than the height of the front left column and the front right column. The height of the front left column and the front right column are the same. A support column is connected to the bottom surface of each of the four corners of the base frame. The platform support includes a front column, an H-shaped frame, two side crossbars, and a rear column. The front column is fixed to the middle of the top surface of the front crossbeam of the correction table base. The front ends of the two longitudinal bars of the H-shaped frame are fixed to the top surfaces of the front left column and the front right column of the correction table base, respectively. The two side crossbars are connected between the outer rear ends of the two longitudinal bars of the H-shaped frame and the inner sides of the two side columns of the correction table base. The rear column is fixed to the middle of the top surface of the rear crossbeam of the correction table base. The top surfaces of the front column, the H-shaped frame, the two side crossbars, and the rear column are all on the same horizontal plane. The platform plate includes a rectangular main plate and two flange plates that extend laterally from the rear sides of the main plate, forming a U-shape. A tail plate extends longitudinally from the middle of the rear end of the main plate. Each of the two flange plates has a groove at its outer end, the width of which matches the width of the side column of the correction table base. The platform plate is fixed to the platform support by means of the grooves of the two flange plates fitting onto the two side columns of the correction table base, and the rear part of the tail plate being located on the top surface of the rear column. Two horizontal support plates are fixed horizontally to the top surfaces of the two side columns of the base of the correction table, corresponding one to one. The longitudinal support plate is longitudinally fixed to the middle of the platform plate at the same height by four vertical plates and two horizontal support plates; The lateral correction mechanism includes two pairs of lateral slide rails and two pairs of lateral correction frames; the two pairs of lateral slide rails are laterally fixed to the two flange plates of the platform plate in a one-to-one correspondence, and each pair of lateral slide rails is symmetrically located on the front and rear sides of the side column; the two pairs of lateral correction frames are installed on the sliders of the two pairs of lateral slide rails in a one-to-one correspondence; each of the lateral correction frames includes an L-shaped steel frame and a bearing wheel installed on the top surface of the L-shaped steel frame. The longitudinal correction mechanism includes two longitudinal main slide rails that are fixed longitudinally to the front sides of the main platform of the platform plate and two longitudinal correction frames that are mounted on the sliders of the two longitudinal main slide rails; the structure of the longitudinal correction frame is the same as that of the transverse correction frame. The correction drive mechanism includes a drive motor, a hinge core plate, two transverse hinge connecting frames, and a longitudinal hinge connecting frame. The drive motor is vertically mounted on the bottom surface of the platform plate and located behind the web member of the H-shaped frame of the platform support. The hinge core plate has a T-shaped plane and is mounted on the shaft of the drive motor that passes through the platform plate. Each transverse hinge connecting frame includes a transverse slider connecting plate spanning between the sliders of each pair of transverse slide rails and a transverse connecting rod hinged to the middle of the transverse slider connecting plate and one end of the transverse portion of the hinge core plate. The longitudinal hinge connecting frame includes a longitudinal slider connecting plate spanning between the sliders of two longitudinal main slide rails and a longitudinal connecting rod hinged to the middle of the longitudinal slider connecting plate and the tail end of the longitudinal portion of the hinge core plate. The sensing platform includes a base, four pressure sensors, and a support frame; wherein... The plane of the sensing table base is rectangular, and the length of the sensing table base is less than the length of the correction table base. The width of the sensing table base is the same as the width of the correction table base, and the height of the two long sides of the sensing table base is higher than the height of the two short sides. Four pressure sensors are installed one-to-one on the top surfaces of the two short sides of the base of the sensing platform; The plane of the support frame is a rectangle with the same plane shape and size as the base of the sensing table. The support frame is placed on the top surface of the four pressure sensors and located at the bottom of the base of the correction table, so that the four support columns of the base of the correction table are suspended in the air.

[0006] In the aforementioned bearing ring phosphate production line, the loading and unloading positioning platform has multiple steel balls evenly distributed on the top surface of the transverse support plate and the top surface of the longitudinal support plate.

[0007] The loading and unloading positioning table of the bearing ring phosphate production line mentioned above, wherein the longitudinal straightening mechanism of the straightening table also includes two longitudinal auxiliary slide rails fixed on the platform plate and located between the two longitudinal main slide rails; the longitudinal slider connecting plate is also fixed on the top surface of the sliders of the two longitudinal auxiliary slide rails.

[0008] The loading and unloading positioning platform of the aforementioned bearing ring phosphating production line has a foot installed on each of the two short sides of the base of the induction platform.

[0009] The loading and unloading positioning table of the bearing ring phosphating production line of the present invention has the following characteristics: 1. This invention can meet the automated production needs of phosphating production lines, is easy to operate, solves the problem of position correction of the hanging fixture transport trolley, and can better connect the preceding and following processes of phosphating treatment, so that the phosphating process can be completed more smoothly; 2. This invention can sense the load-bearing capacity of the hanger transport trolley and indirectly identify the load-bearing status of the hanger. Based on this, the transmission of the hanger transport trolley and the phosphating process of the workpiece can be optimized to improve production efficiency and save costs. 3. This invention is powerful, structurally stable, and not prone to tipping over, thus ensuring safety during the loading and unloading process and optimizing the production process; 4. It can adapt to all scenarios involving the positioning of objects. Attached Figure Description

[0010] Figure 1 This is a front view of the phosphate material rack involved in the loading and unloading positioning table of the bearing ring phosphate production line of the present invention. Figure 2 yes Figure 1 Side view; Figure 3 This is a perspective view of the loading and unloading positioning table of the bearing ring phosphating production line of the present invention. Figure 3a This is a top view of the loading and unloading positioning table of the bearing ring phosphating production line of the present invention. Figure 4 This is a perspective view of the straightening table in the loading and unloading positioning table of the present invention; Figure 5 This is a perspective view of the straightening table base and platform support in the loading and unloading positioning table of the present invention; Figure 6 This is a perspective view of the straightening table base, platform support, and platform plate in the loading and unloading positioning table of the present invention. Figure 7 This is a perspective view of the straightening table base, platform bracket, platform plate, two horizontal support plates and a vertical support plate in the loading and unloading positioning table of the present invention. Figure 8 This is a perspective view of the straightening table base, platform bracket, platform plate, two horizontal support plates and a vertical support plate in the loading and unloading positioning table of the present invention, as well as a perspective view of the horizontal slide rail and the vertical slide rail. Figure 9 This is a perspective view of the induction table in the loading and unloading positioning table of the present invention; Figure 10 This is a front view of the loading and unloading positioning table of the present invention in use. Detailed Implementation

[0011] The invention will now be further described with reference to the accompanying drawings.

[0012] Please see Figures 1 to 10 The bearing ring phosphating production line of the present invention includes a loading and unloading positioning table, comprising a straightening table 100 and an induction table 200.

[0013] The correction table 100 includes a correction table base 2A, a platform support 2B, a platform plate 2C, two transverse support plates 3A, a longitudinal support plate 3B, a transverse correction mechanism, a longitudinal correction mechanism, and a correction drive mechanism.

[0014] The base of the correction table is made of square steel and includes a rectangular base frame 2A with a length greater than that of the hanging transport trolley 1B, two side columns 21 fixed to the top surface of the two longitudinal beams of the base frame 2A, and front left columns 22 and front right columns 23 fixed to the top surface of the front crossbeam of the base frame 2A, respectively. The height of the two side columns 21 is greater than the height of the front left column 22 and the front right column 23. The height of the front left column 22 and the front right column 23 are the same. A support column 20 is connected to each of the four corners of the bottom surface of the base frame 2A. The platform support 2B is made of square steel and includes a front column 24, an H-shaped frame 25, two side crossbars 26, and a rear column 27. The front column 24 is fixed to the middle of the top surface of the front crossbeam of the straightening table base 2A. The front ends of the two longitudinal bars of the H-shaped frame 25 are fixed to the top surfaces of the front left column and the front right column of the straightening table base 2A respectively. The two side crossbars are connected between the outer rear ends of the two longitudinal bars of the H-shaped frame 25 and the inner sides of the two side columns 21 of the straightening table base 2A respectively. The rear column 27 is fixed to the middle of the top surface of the rear crossbeam of the straightening table base 2A. The top surfaces of the front column 24, the H-shaped frame 25, the two side crossbars 26, and the rear column 27 are on the same horizontal plane. Platform plate 2C includes a rectangular main plate and two flange plates that extend laterally from the rear sides of the main plate, forming a U-shape. The length of the main plate is less than the length of the hanger transport trolley 1B, and a tail plate extends longitudinally from the middle of the rear end of the main plate. The width of the flange plates is greater than the width of the side columns 21 of the straightening table base 2A, and each of the two flange plates has a groove at its outer end that matches the width of the side columns 21 of the straightening table base 2A. Platform plate 2C is fixed to platform bracket 2B by means of the grooves of the two flange plates fitting onto the two side columns 21 of the straightening table base 2A, and the rear part of the tail plate being located on the top surface of the rear column 27. The front part of the main plate of platform plate 2C extends beyond the front crossbeam of the straightening table base 2A. Two horizontal support plates 3A are fixed horizontally on the top surfaces of the two side columns 21 of the base of the correction table 2A, corresponding one to one. Multiple steel balls 30 are evenly distributed on the top surface of each horizontal support plate 3A. The longitudinal support plate 3B is longitudinally fixed to the middle of the platform plate 2C at the same height as the two transverse support plates 3A by four upright plates 31; the four upright plates 31 are longitudinally fixed at intervals on the top surface of the platform plate 2C, with the foremost upright plate 31 and the last upright plate 31 corresponding to each other at the front and rear ends of the platform plate 2C, so that the length of the longitudinal support plate 3B is greater than the width of the hanging transport trolley 1B, and multiple steel balls 30 are also evenly distributed on the top surface of the longitudinal support plate 3B. Two transverse support plates 3A and one longitudinal support plate 3B form an "I"-shaped support frame for the hanger transport trolley. The steel ball 30 is fixed to the top surface of the transverse support plate 3A and the top surface of the longitudinal support plate 3B by a ring sleeve, so that the steel ball 30 can rotate freely and directly contact the bottom surface of the hanger transport trolley 1B. This converts the sliding friction between the hanger transport trolley 1B and the hanger transport trolley support frame when the hanger transport trolley 1B moves into rolling friction, making it easier for the hanger transport trolley 1B to complete position correction without damaging the contact surfaces. The lateral correction mechanism includes two pairs of lateral slide rails 4A and two pairs of lateral correction frames 4B. The two pairs of lateral slide rails 4A are fixed laterally on the two flange plates of the platform plate 2C in a one-to-one correspondence. Each pair of lateral slide rails 4A is symmetrically located on the front and rear sides of the side column 21. The two pairs of lateral correction frames 4B are installed on the sliders of the two pairs of lateral slide rails 4A in a one-to-one correspondence. Each lateral correction frame 4B includes an L-shaped steel frame and a bearing wheel 40 installed on the top surface of the L-shaped steel frame. The outer circumference of the bearing wheel 40 is covered with a rubber protective sleeve. The bearing wheel 40 is positioned higher than the top surface of the phosphate material frame of the hanger transport trolley support frame. The bearing wheel 40 is used to contact the side of the bottom plate of the hanger transport trolley 1B and push the hanger transport trolley 1B to perform position correction. The longitudinal correction mechanism includes two longitudinal main slide rails 4C that are longitudinally fixed to the front sides of the main platform of the platform plate 2C, two longitudinal auxiliary slide rails 4D that are longitudinally fixed to the front of the main platform of the platform plate 2C and located between the two longitudinal main slide rails 4C, and two longitudinal correction frames 4E that are longitudinally fixed to the sliders of the two longitudinal main slide rails 4C; the structure of the longitudinal correction frame 4E is the same as the structure of the transverse correction frame 4B. The correction drive mechanism includes a drive motor 5A, a hinge core plate 5B, two transverse hinge connecting frames, and a longitudinal hinge connecting frame; the drive motor 5A is vertically mounted on the bottom surface of the platform plate 2C and located behind the web of the H-shaped frame 25 of the platform support; the hinge core plate 5B has a T-shaped plane and is mounted on the rotating shaft of the drive motor 5A that passes through the platform plate 2C; each transverse hinge connecting frame includes a transverse slider connecting plate 51 spanning between the sliders of each pair of transverse slide rails 4A and a transverse connecting rod 52 hinged to the middle of the transverse slider connecting plate 51 and one end of the transverse portion of the hinge core plate 5B; the transverse slide rails of the two transverse hinge connecting frames... Each of the connecting plates 51 is located inside the corresponding side column 21, and the two side columns 21 also restrict the two transverse slider connecting plates 51 from sliding out of the two sides of the platform plate 2C. The longitudinal hinge connecting frame includes a longitudinal slider connecting plate 53 that spans the sliders of the two longitudinal main slide rails 4C and the sliders of the two longitudinal secondary slide rails 4D, and a longitudinal connecting rod 54 that is hinged to the middle of the longitudinal slider connecting plate 53 and the tail end of the longitudinal part of the hinge core plate 5B. The longitudinal slider connecting plate 53 is located behind the foremost upright plate 31, and the foremost upright plate 31 also restricts the longitudinal slider connecting plate 53 from sliding out of the front end of the platform plate 2C.

[0015] The correction drive mechanism uses a drive motor 5A to control the transverse correction frame 4B and the longitudinal correction frame 4E to move one-to-one on the transverse slide rail 4A and the longitudinal main slide rail 4C / longitudinal auxiliary slide rail 4D through the hinge core plate 5B. This ensures that the position of the hanger transport trolley 1B is corrected simultaneously in the transverse and longitudinal directions, avoiding incomplete position correction of the hanger transport trolley 1B due to different start times.

[0016] The sensing platform 200 includes a sensing platform base 6A, four pressure sensors 6, and a support frame 6B; wherein, The sensor base 6A is made of square steel and has a rectangular frame shape. The length of the sensor base 6A is less than the length of the correction base 1A. The width of the sensor base 6A is the same as the width of the correction base 1A. The height of the two long sides of the sensor base 6A is higher than the height of the two short sides. A foot 60 is installed on the bottom surface of each of the two short sides of the sensor base 6A. Four pressure sensors 6 are installed one-to-one on the top surfaces of the two short sides of the induction stage base 6A; the pressure sensors 6 are used to identify and feedback the mass changes of the components above. The support frame 6B is made of square steel and has a rectangular shape and size that are the same as those of the induction table base 6A. The support frame 6B is placed on the top surface of the four pressure sensors 6. The sensing table 200 is located at the bottom of the correction table 100, that is, the sensing table is located at the bottom of the correction table base 1A, so that the four support columns 20 of the correction table base 1A are suspended in the air.

[0017] The loading and unloading positioning table of the bearing ring phosphating production line of the present invention includes the following steps during use: Step 1: First, the crane grabber grabs the two pairs of hook shafts 11 on the top of the hanger 10A, lifting the hanger 10A above the hanger transport trolley 10B. Then, the hanger 10A is inserted into the hanger transport trolley 10B, so that the two pairs of positioning shafts 12 on the top of the hanger 1A are positioned one-to-one in the two pairs of limiting frames 13 fixed on both sides of the top of the hanger transport trolley 10B, thus completing the assembly of the hanger 10A and the hanger transport trolley 10B to form the phosphate material rack. Step 2: The forklift-type AGV trolley lifts the hanging transport trolley 10B and transports the entire phosphate material rack to the phosphate workshop. Step 3: The forklift-type AGV trolley places the phosphate material rack above the loading / unloading positioning platform of the present invention. The two insert rods of the forklift-type AGV trolley are located above the platform plate 2C and correspondingly positioned on both sides of the longitudinal support plate 3B. The two rear wheels of the hanging device transport trolley 10B are located in the gap between the two sides of the tail plate of the platform plate 2C and the rear crossbeam of the bottom frame 2A of the straightening table base. The two front wheels of the hanging device transport trolley 10B are correspondingly positioned in the gap between the two front sides of the main platform plate 2C of the platform plate 2C and the two longitudinal beams at the front of the bottom frame 2A of the straightening table base. Then, the two insert rods of the forklift-type AGV trolley descend and exit the loading / unloading positioning platform of the present invention, so that the phosphate material rack sits on the hanging device transport trolley support frame, which is composed of two transverse support plates 3A and one longitudinal support plate 3B of the straightening table 100 and is in the shape of an "I" (see...). Figure 10 The four pressure sensors 6 on the sensing table 100 sense the entire weight of the phosphate rack, thereby identifying the state of the phosphate workpiece carried by the hanger 10A and feeding the information back to the control system of the phosphate production line. The automatic control system then automatically adjusts the transmission speed of the phosphate rack and optimizes the phosphate process. Step 4: The drive motor 5A of the correction drive mechanism starts, driving the hinge core plate 5B to rotate. This causes the two transverse hinge connecting frames to move the two pairs of transverse correction frames 4B along the two pairs of transverse slide rails 4A in the left and right directions, and causes the longitudinal hinge connecting frame to move the longitudinal correction frame 4E along the two longitudinal main slide rails 4C and the two longitudinal secondary slide rails 4D in the forward and backward directions, until the two sides of the bottom plate of the hanging device transport trolley 10B contact the bearing wheels 40 on the two pairs of transverse correction frames 4B in the left and right directions, and the front end of the bottom plate of the hanging device transport trolley 10B contacts the two pairs of transverse correction frames 4B. The bearing wheel 40 on the longitudinal straightening frame 4E positions the entire phosphate material rack to the position determined by the crane gripper. Then, the crane gripper grabs the two pairs of hook shafts 11 on the hanger 10A and lifts the hanger 10A upward, separating the hanger 10A from the hanger transport trolley 10B. Then, the hanger 10A with the phosphated workpiece is sent to the top of the phosphate tank and lowered until the two pairs of positioning shafts 12 on the hanger 10A rest on the top surface of the two side walls of the phosphate tank, allowing the lower part of the hanging plate on the hanger 10A to be immersed in the phosphate solution in the phosphate tank. After the phosphating process is completed, the forklift-type AGV trolley places the hanger transport trolley 1B on the loading and unloading positioning platform of this invention in advance, and positions the hanger transport trolley 1B at the position identified by the crane gripper. Then, the crane gripper grabs the two pairs of hook shafts 11 of the hanger 10A located on the phosphating tank, lifts the hanger 10A with the phosphated workpiece out of the phosphating tank, and moves the hanger 10A to directly above the hanger transport trolley 10B. Then, the hanger 10A is lowered and installed on the hanger transport trolley 1B to form a phosphating rack again. Finally, the forklift-type AGV trolley transports away the phosphating rack to complete one phosphating process.

[0018] The above embodiments are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the invention. Therefore, all equivalent technical solutions should also fall within the scope of the invention and should be defined by the claims.

Claims

1. A feeding and positioning table for a bearing ring phosphating production line, comprising a straightening table and an induction table; characterized in that the straightening table comprises a straightening table base, a platform support, a platform plate, two lateral support plates, a longitudinal support plate, a lateral straightening mechanism, a longitudinal straightening mechanism and a straightening driving mechanism; the straightening table base comprises a rectangular bottom frame, two side columns fixed in the middle of the top surface of the two longitudinal beams of the bottom frame, and a front left column and a front right column fixed on the left and right sides of the top surface of the front cross beam of the bottom frame; the height of the two side columns is greater than the height of the front left column and the height of the front right column; the height of the front left column and the height of the front right column are the same; a support column is connected to the bottom surface of each corner of the bottom frame; the platform support comprises a front column, an H-shaped frame, two side cross bars and a rear column, the front column is fixed in the middle of the top surface of the front cross beam of the straightening table base; the front end surfaces of the two longitudinal bars of the H-shaped frame are fixed on the top surfaces of the front left column and the front right column of the straightening table base; the two side cross bars are connected between the rear end outer side surfaces of the two longitudinal bars of the H-shaped frame and the inner side surfaces of the two side columns of the straightening table base; the rear column is fixed in the middle of the top surface of the rear cross beam of the straightening table base; the top surfaces of the front column, the H-shaped frame, the two side cross bars and the rear column are located on the same horizontal plane; the platform plate comprises a rectangular main plate and two flange plates extending out from the two side rear parts of the main plate in a convex shape, and a tail plate extending longitudinally in the middle of the rear end of the main plate; a groove with a width matching the width of the side column of the straightening table base is formed in the outer side end of each flange plate; the platform plate is fixed on the platform support in a manner that the grooves of the two side flange plates are sleeved on the two side columns of the straightening table base, and the rear part of the tail plate is seated on the top surface of the rear column; two lateral support plates are fixed on the top surfaces of the two side columns of the straightening table base; the longitudinal support plate is fixed on the middle part of the platform plate in the same height as the two lateral support plates through four vertical plates; the lateral straightening mechanism comprises two pairs of lateral sliding rails and two pairs of lateral straightening frames; each pair of lateral sliding rails is fixed on the two flange plates of the platform plate in a symmetrical manner on the front and rear sides of the side column; each pair of lateral straightening frames is installed on the sliding block of each pair of lateral sliding rails; each lateral straightening frame comprises an L-shaped steel frame and a bearing wheel installed on the top surface of the L-shaped steel frame; the longitudinal straightening mechanism comprises two longitudinal main sliding rails fixed on the front part of the main plate of the platform plate in a longitudinal manner, and two longitudinal straightening frames installed on the sliding blocks of the two longitudinal main sliding rails; the structure of the longitudinal straightening frame is the same as that of the lateral straightening frame. ​ The correction driving mechanism comprises a driving motor, a hinge core plate, two transverse hinge connecting frames and a longitudinal hinge connecting frame; the driving motor is vertically installed on the bottom surface of the platform plate and located at the rear side of the web of the H-shaped frame of the platform support; the plane of the hinge core plate is T-shaped and installed on the rotating shaft of the driving motor penetrating the platform plate; each transverse hinge connecting frame comprises a transverse slider connecting plate bridging between the sliders of each pair of transverse slide rails and a transverse connecting rod hinged at the middle part of the transverse slider connecting plate and one end of the transverse part of the hinge core plate; the longitudinal hinge connecting frame comprises a longitudinal slider connecting plate bridging between the sliders of the two longitudinal main slide rails and a longitudinal connecting rod hinged at the middle part of the longitudinal slider connecting plate and the tail end of the longitudinal part of the hinge core plate; The induction table comprises an induction table base, four pressure sensors and a bearing frame; wherein, The plane of the induction table base is a rectangular frame, and the length of the induction table base is less than the length of the correction table base, the width of the induction table base is the same as the width of the correction table base, and the height of the two long edges of the induction table base is higher than the height of the two short edges; The four pressure sensors are one-to-one corresponding installed on the top surfaces of the two short edges of the induction table base; The plane of the bearing frame is a rectangle with the same shape and size as the plane of the induction table base, the bearing frame is placed on the top surface of the four pressure sensors and arranged at the bottom of the correction table base of the correction table, so that the four support columns of the correction table base are suspended.

2. The feeding and discharging positioning table of the phosphorizing production line of bearing ring as claimed in claim 1, wherein, A plurality of steel balls are installed on the top surface of the transverse support plate and the top surface of the longitudinal support plate, respectively.

3. The loading and unloading positioning table of the phosphorizing production line of bearing rings according to claim 1, characterized in that, The longitudinal correction mechanism of the correction table further comprises two longitudinal auxiliary slide rails fixed on the platform plate and located between the two longitudinal main slide rails; the longitudinal slider connecting plate is also fixed on the top surface of the sliders of the two longitudinal auxiliary slide rails.

4. The loading and unloading positioning table of the phosphorizing production line of bearing rings according to claim 1, characterized in that, One footing is respectively installed on the bottom surface of each of the two short edges of the induction table base of the induction table.

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