Digital machining device for water pump rotor

Abstract

The utility model relates to the technical field of water pump rotor machining, in particular to a digital machining device for a water pump rotor. A truss with a mechanical arm is arranged, the mechanical arm conveys a workpiece to be machined from a double-end lathe, a first numerical control lathe, a press and a numerical control grinding machine to a second numerical control lathe in sequence in the machining sequence, and digital machining is completed; and one end of the double-end lathe is changed into a central positioning groove, and the other end of the double-end lathe is in an end clamping mode, so that the clamping stability of the first numerical control lathe during machining is improved, and the machining precision of the first numerical control lathe is improved. Original one-time downward pressing is divided into multiple times of downward pressing at the position of a pressing machine, and a corresponding rotating angle is rotated in each time of downward pressing, so that downward pressing stress is balanced, the rotating shaft is effectively prevented from being bent and deformed, and the product quality is ensured. The numerical control grinding machine can grind the rotating shaft at different output rotating speeds according to different materials of the rotating shaft, the outer diameter of the rotating shaft is detected through the detection assembly, and control over grinding precision can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump rotor processing technical field especially relates to a water pump rotor digitization processing device. BACKGROUND

[0002] The existing water pump rotor processing is mostly single process processing mode, cannot form automatic production, and the processing time of single water pump rotor needs to reach 2 minutes or more, greatly influences the mass production of products. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model discloses the purpose at to provide a water pump rotor digitization processing device.

[0004] In order to realize above-mentioned purpose, the technical scheme that the utility model adopts is:

[0005] A water pump rotor digitization processing device, including the truss with manipulator and the double -end lathe, first numerical control lathe, press, numerical control grinding machine and second numerical control lathe that are sequentially arranged along the processing sequence, the manipulator is used to sequentially convey the water pump rotor to be processed from double -end lathe, first numerical control lathe, press, numerical control grinding machine to second numerical control lathe,

[0006] The double -end lathe is used to process the center hole of the one end surface of the spindle to be processed and the outside clamping position of the other end surface, so as to facilitate the clamping and fixing of first numerical control lathe,

[0007] The first numerical control lathe is used for the outer thread processing of the middle part of the spindle after double -end lathe processing,

[0008] The press is used to press the spindle after first numerical control lathe processing into the water pump rotor, and the water pump rotor with the spindle is obtained,

[0009] The numerical control grinding machine is used for the polishing processing of the bearing file and stainless steel section of the water pump rotor after press processing,

[0010] The second numerical control lathe is used for the outer ring and knurl of the water pump rotor after numerical control grinding machine processing, and the processed water pump rotor is obtained.

[0011] Further, it further includes the special machine that is located at the rear end of second numerical control lathe along the processing sequence, and the special machine is used for drilling and tapping the one end surface of the spindle of the water pump rotor after second numerical control lathe processing and milling the other end surface one -character groove.

[0012] Further, it further includes the marking machine that is located at the rear end of special machine along the processing sequence, and the marking machine is used for marking processing on the marking position of the water pump rotor after special machine processing.

[0013] Further, the first numerical control lathe comprises a first clamping assembly and a first machining tool arranged on one side of the first clamping assembly, the first clamping assembly comprises oppositely arranged first clamping parts and top abutting parts, the first clamping parts and the top abutting parts jointly clamp the double-end lathe processed rotating shaft, the first machining tool is used for machining operation on the outer surface of the side wall of the rotating shaft, the double-end lathe comprises a second clamping assembly and two second machining tools and third machining tools respectively arranged on the horizontal two sides of the second clamping assembly, the second machining tool is used for machining on the outer surface of the side wall of one end of the rotating shaft, and the third machining tool is used for machining on the central position of the other end surface of the rotating shaft; the second clamping assembly is in the form of a vertically arranged annular body, and a plurality of movable blocks capable of being inwards contracted to form second clamping parts are arranged in the annular body.

[0014] Further, the first numerical control lathe further comprises a first movable base capable of moving horizontally and vertically, the first machining tool is installed on the first movable base and located above the first clamping assembly; the double-end lathe further comprises a second movable base and a third movable base, both of which can move horizontally and vertically, the second machining tool is installed on the second movable base, and the third machining tool is installed on the third movable base.

[0015] Further, the press comprises a rotating disc capable of rotating horizontally, a correction mechanism, a driving mechanism and a pressing mechanism respectively arranged on one side of the rotating disc; the rotating disc is provided with a containing body for placing the water pump rotor to be assembled, and the containing body is rotatably connected with the rotating disc, a driven gear is sleeved on the outer side wall of the containing body, the driving mechanism comprises a first driving motor and a driving gear in transmission connection with the output shaft of the first driving motor, the driving gear is in meshing connection with the driven gear, the correction mechanism is located directly above the containing body and is used for correcting the water pump rotor to be assembled and the rotating shaft, and the pressing mechanism is located directly above the containing body and is used for pressing the corrected rotating shaft into the water pump rotor; the correction mechanism comprises first clamping jaws and second clamping jaws capable of being opened and closed, the first clamping jaws are located above the second clamping jaws, a first limiting groove matched with the outer diameter of the rotating shaft is arranged on the inner side wall of the first clamping jaws, and a second limiting groove matched with the outer diameter of the water pump rotor is arranged on the inner side wall of the second clamping jaws.

[0016] Further, the pressing mechanism comprises a mounting bracket and a pressing rod arranged on the mounting bracket and capable of moving in the vertical direction, the area of the lower end surface of the pressing rod is matched with the area of the end surface of the rotating shaft; the pressing mechanism further comprises a movable plate, vertical standing rods are arranged on the mounting bracket, a first through hole matched with the standing rods and a second through hole matched with the pressing rod are arranged on the movable plate; the number of the standing rods is two, the two standing rods are arranged at intervals, and the pressing rod is arranged between the two standing rods and located on the symmetry axis of the two standing rods.

[0017] Further, the numerical control grinding machine comprises a rotatable third clamping assembly, a grinding wheel assembly and a detection assembly arranged respectively on the horizontal two sides of the third clamping assembly, the third clamping assembly comprises two clamping parts oppositely arranged and clamping a rotating shaft together, the rotating shaft comprises two different materials, the grinding wheel assembly comprises a servo motor and a grinding disc in transmission connection with an output shaft of the servo motor, the servo motor comprises two different output rotating speeds and is matched with the different materials of the rotating shaft, the detection assembly is used for detecting the outer diameter of the rotating shaft, and the detection assembly and the servo motor are electrically connected with an external controller respectively; the numerical control grinding machine further comprises a cylinder assembly, the detection assembly is installed on the cylinder assembly, and the movement direction of the cylinder assembly is towards the clamping position of the rotating shaft; the number of the detection assembly is two, and the two detection assemblies are arranged respectively at the positions of the two different materials of the rotating shaft.

[0018] The clamping part is a taper top joint, and the top joint is installed on a mounting part which can rotate along a vertical plane.

[0019] The grinding wheel assembly further comprises a detection rod and an angle measurer used for measuring the inclination angle of the detection rod, and one end of the detection rod is overlapped on the grinding disc; the number of the detection rod is three, and the detection rod is arranged respectively at the positions close to the side end face, the middle position and the position close to the other side end face of the grinding disc.

[0020] The numerical control grinding machine has the following beneficial effects:

[0021] The utility model provides a kind of water pump rotor digitization processing device, by being provided with truss with manipulator, workpiece is sequentially conveyed from double-end lathe, first numerical control lathe, press, numerical control grinding machine to second numerical control lathe along processing order by manipulator, complete digitization processing;And the original center positioning groove is machined to the both end surfaces of the rotating shaft of water pump rotor at double-end lathe, and the way of first numerical control lathe clamping fixation is improved, and the one end is changed into center positioning groove, and the other end is changed into end clamping, so the cutter of one end in double-end lathe is changed into the processing cutter for machining the lateral outer surface of the one end of rotating shaft, and the cutter of the other end is unchanged, to improve the clamping stability when first numerical control lathe processes, and then improve its machining precision.When water pump rotor and rotating shaft to be assembled are placed on containing body at press, water pump rotor and rotating shaft are corrected and aligned by correction mechanism, and then rotating shaft part after correction is pressed into water pump rotor by pressing mechanism, and then the containing body is rotated horizontally by a certain angle by driving mechanism, and then rotating shaft is further pressed into water pump rotor by pressing mechanism, and then the containing body is rotated horizontally again by a certain angle by driving mechanism, and then rotating shaft is further pressed into water pump rotor by pressing mechanism, and after repeated operation, rotating shaft and water pump rotor are assembled, and the stress balance of rotating shaft during pressing process can be ensured, and bending deformation and other adverse effects are not easy to occur, to improve the quality of water pump rotor.The numerical control grinding machine adopts grinding wheel assembly composed of servo motor and grinding disc transmission connected with servo motor output shaft, and the servo motor includes at least two different output speeds, and is matched with different materials of rotating shaft, that is, different output speeds are used for grinding according to different materials of rotating shaft, and the outer diameter of rotating shaft is detected by detection assembly, and when the outer diameter of rotating shaft reaches the target requirement, feedback is given to controller, and controller controls servo motor to stop grinding, and servo motor with high control precision and stability is used, to improve the control of grinding precision.The improvement and combination of the above-mentioned multiple structures improve the machining precision of water pump rotor as a whole, improve the product quality of water pump rotor, and are beneficial to mass production.In particular, the processing time of single water pump rotor can be shortened to 43 seconds by using the water pump rotor digitization processing device, and the processing efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of double-end lathe of the utility model's water pump rotor digitization processing device.

[0023] Figure 2 It is the front view of double-end lathe of the utility model's water pump rotor digitization processing device.

[0024] Figure 3It is the first numerical control lathe's structure schematic drawing of a water pump rotor digitization processing device of the utility model;

[0025] Figure 4 It is the first numerical control lathe's main view of a water pump rotor digitization processing device of the utility model;

[0026] Figure 5 It is the structure schematic drawing of one angle of the press of a water pump rotor digitization processing device of the utility model;

[0027] Figure 6 It is the structure schematic drawing of another angle of the press of a water pump rotor digitization processing device of the utility model;

[0028] Figure 7 It is the main view of the press of a water pump rotor digitization processing device of the utility model;

[0029] Figure 8 It is the side view of the press of a water pump rotor digitization processing device of the utility model;

[0030] Figure 9 It is the plan view of the press of a water pump rotor digitization processing device of the utility model;

[0031] Figure 10 It is the structure schematic drawing of numerical control grinding machine of a water pump rotor digitization processing device of the utility model;

[0032] Figure 11 It is the main view of numerical control grinding machine of a water pump rotor digitization processing device of the utility model;

[0033] Figure 12 It is the side view of numerical control grinding machine of a water pump rotor digitization processing device of the utility model;

[0034] Figure 13 It is the plan view of numerical control grinding machine of a water pump rotor digitization processing device of the utility model;

[0035] Explanation of drawing reference numeral:

[0036] 1-double head lathe;11-second mobile base;12-third mobile base;13-second clamping assembly;14-second processing cutter;15-third processing cutter;

[0037] 2-first numerical control lathe;21-first mobile base;22-first clamping assembly;23-first processing cutter;221-first clamping part;222-top interface part;

[0038] 3-rotating shaft;

[0039] 4-press; 41-rotary table; 411-holding body; 4111-driven gear; 4112-holding groove; 412-second driving motor; 42-correction mechanism; 421-first clamping jaw; 4211-first limiting groove; 422-second clamping jaw; 4221-second limiting groove; 43-driving mechanism; 431-driving gear; 44-pressing mechanism; 441-mounting bracket; 4411-vertical rod; 442-moving plate; 443-pressing rod;

[0040] 5-CNC grinding machine; 51-clamping assembly; 511-clamping part; 52-grinding wheel assembly; 521-servo motor; 522-grinding disc; 523-detection rod; 524-moving mechanism; 53-detection assembly; 531-cylinder assembly; 532-top part. DETAILED DESCRIPTION

[0041] The utility model makes further explanation as follows in connection with the drawings and specific embodiments:

[0042] As Figures 1 to 13 shown, the utility model provides a kind of water pump rotor digitization processing device, including truss with manipulator and double-end lathe, first CNC lathe, press, CNC grinding machine and second CNC lathe sequentially arranged along processing sequence;The manipulator is used to sequentially convey the water pump rotor to be processed from double-end lathe, first CNC lathe, press, CNC grinding machine to second CNC lathe;

[0043] The double-end lathe is used to process the center hole of the end face of the shaft to be processed and the outer side clamping position of the other end face, to facilitate the clamping and fixing of first CNC lathe;

[0044] The first CNC lathe is used for external thread processing to the middle part of the shaft after double-end lathe processing;

[0045] The first CNC lathe includes first clamping assembly and first machining tool arranged on one side of first clamping assembly, and the first clamping assembly includes oppositely arranged first clamping part and top part, and the first clamping part and top part clamp the shaft after double-end lathe processing, and the first machining tool is used for processing operation to the side wall outer surface of the shaft, and the double-end lathe includes second clamping assembly and two second machining tools and third machining tools respectively arranged on the horizontal two sides of second clamping assembly, and the second machining tool is used for processing the side wall outer surface of one end of the shaft, and the third machining tool is used for processing the center position of the other end face of the shaft;

[0046] The press is used to press the shaft after first CNC lathe processing into water pump rotor, to obtain water pump rotor with shaft;

[0047] The press machine comprises a horizontally rotatable rotating disc, a correction mechanism, a driving mechanism and a pressing mechanism arranged on the one side of the rotating disc respectively; the rotating disc is provided with a containing body for placing the water pump rotor to be assembled, and the containing body is rotatably connected with the rotating disc; a driven gear is sleeved on the outer side wall of the containing body; the driving mechanism comprises a first driving motor and a driving gear in transmission connection with the output shaft of the first driving motor, and the driving gear is in engagement with the driven gear; the correction mechanism is located right above the containing body and is used for correcting the water pump rotor to be assembled and the rotating shaft; the pressing mechanism is located right above the containing body and is used for pressing the corrected rotating shaft into the water pump rotor;

[0048] The numerical control grinding machine is used for grinding the bearing flange and the stainless steel section of the water pump rotor machined by the press machine.

[0049] The numerical control grinding machine comprises a rotatable third clamping assembly, a grinding wheel assembly and a detection assembly arranged on the horizontal two sides of the third clamping assembly respectively; the third clamping assembly comprises two clamping parts oppositely arranged and clamping a rotating shaft together; the rotating shaft comprises two different materials; the grinding wheel assembly comprises a servo motor and a grinding disc in transmission connection with the output shaft of the servo motor; the servo motor comprises two different output rotating speeds and is matched with the different materials of the rotating shaft; the detection assembly is used for detecting the outer diameter of the rotating shaft; and the detection assembly and the servo motor are electrically connected with an external controller respectively.

[0050] The second numerical control lathe is used for grinding the outer ring and the knurl of the water pump rotor machined by the numerical control grinding machine, so as to obtain the machined water pump rotor.

[0051] From the above description, the utility model has the following beneficial effects:

[0052] The utility model provides a kind of water pump rotor digitization processing device, by being provided with truss with manipulator, workpiece is sequentially conveyed from double-end lathe, first numerical control lathe, press, numerical control grinding machine to second numerical control lathe along processing order by manipulator, complete digitization processing;And the improvement of the mode that the center positioning groove is machined to the both end surfaces of the rotating shaft of water pump rotor in double-end lathe is improved, to the mode that one end is center positioning groove, the other end is end clamping, so the cutter of one end in double-end lathe is changed into the machining cutter for machining the lateral wall outer surface of the one end of rotating shaft, the cutter of the other end is unchanged, to improve the clamping stability when first numerical control lathe processes, to further improve its machining precision.In press, when water pump rotor and rotating shaft to be assembled are placed on containing body, water pump rotor and rotating shaft are corrected and aligned by correction mechanism, then rotating shaft part after correction is pressed into water pump rotor by lower pressing mechanism, then the containing body is rotated horizontally by a certain angle by driving mechanism, then rotating shaft is further pressed into water pump rotor by lower pressing mechanism, then the containing body is rotated horizontally again by a certain angle by driving mechanism, then rotating shaft is further pressed into water pump rotor by lower pressing mechanism, after repeated operation multiple times, until rotating shaft and water pump rotor complete assembly, can ensure that rotating shaft is balanced in the process of pressing, is not prone to bending deformation and other bad, to improve the quality of water pump rotor.The numerical control grinding machine adopts grinding wheel assembly composed of servo motor and grinding disc transmission connection with servo motor output shaft, and the servo motor includes at least two different output speeds, and is matched with different materials of rotating shaft, that is, different output speeds are used for grinding and processing according to different materials of rotating shaft, and the outer diameter of rotating shaft is detected by detection assembly, when the outer diameter of rotating shaft reaches the target requirement, feedback to controller, and controller controls servo motor to stop grinding, using servo motor with high control precision and high stability, is conducive to improving the control of grinding precision.The improvement combination of the above multiple structures improves water pump rotor machining precision as a whole, improves the product quality of water pump rotor, and is also beneficial to mass production.Specifically, the processing time of a single water pump rotor can be shortened to 43 seconds using the water pump rotor digitization processing device, which greatly improves the processing efficiency.

[0053] Further, a special machine is arranged behind the second numerical control lathe in the processing order, and the special machine is used for drilling and tapping the one end surface of the rotating shaft of the water pump rotor processed by the second numerical control lathe and milling a slot on the other end surface.

[0054] From the above description, the special machine is arranged to further process the rotating shaft.

[0055] Further, a marking machine is arranged behind the special machine in the processing order, and the marking machine is used for marking the marking position on the water pump rotor processed by the special machine.

[0056] From the above description, the marking machine is arranged, and the marking position on the water pump rotor can be marked.

[0057] Further, the second clamping assembly is a vertically arranged annular body, and a plurality of movable blocks capable of being inwards contracted to form a second clamping part are arranged in the annular body.

[0058] From the above description, through the above structural design, the middle part of the rotating shaft is fixed, and the processing of the two ends is facilitated.

[0059] Further, the first numerical control lathe is further provided with a first moving base capable of moving horizontally and vertically, the first processing tool is installed on the first moving base and located above the first clamping assembly, and the double-head lathe is further provided with a second moving base and a third moving base, both of which can move horizontally and vertically, the second processing tool is installed on the second moving base, and the third processing tool is installed on the third moving base.

[0060] From the above description, through the above structural design, the first processing tool, the second processing tool and the third processing tool can be moved arbitrarily, and more refined processing is facilitated.

[0061] Further, the correction mechanism comprises first and second clamping jaws capable of being opened and closed, the first clamping jaw is located above the second clamping jaw, a first limiting groove matched with the outer diameter of the rotating shaft is arranged on the inner side wall of the first clamping jaw, and a second limiting groove matched with the outer diameter of the water pump rotor is arranged on the inner side wall of the second clamping jaw.

[0062] From the above description, through the above structural design, the water pump rotor and the rotating shaft can be corrected and aligned, the stress balance in the subsequent pressing process is facilitated, and through the arrangement of the first and second limiting grooves, the accuracy of the correction and alignment can be ensured.

[0063] Further, a second driving motor is arranged below the rotating disc, and the output shaft of the second driving motor is in transmission connection with the central position of the lower end of the rotating disc.

[0064] From the above description, through the above structural design, the rotating disc can be horizontally rotated, and the switching of assembly and material taking is facilitated.

[0065] Further, two or more accommodating bodies are arranged on the rotating disc and uniformly distributed along the circumferential edge of the rotating disc, and the upper end surface of the accommodating body has an accommodating groove matched with the water pump rotor.

[0066] From the above description, through the above structural design, the assembly efficiency can be improved. The accommodating groove plays a limiting role, and preliminary positioning is facilitated.

[0067] Further, the downward pressing mechanism comprises a mounting bracket and a downward pressing rod arranged on the mounting bracket and movable in the vertical direction, an area of a lower end surface of the downward pressing rod is adapted to an area of an end surface of the rotating shaft; the downward pressing mechanism further comprises a movable plate, the mounting bracket is provided with vertical standing rods, the movable plate is provided with first through holes matched with the standing rods and second through holes matched with the downward pressing rod; the number of the standing rods is two, the two standing rods are arranged at intervals, and the downward pressing rod is arranged between the two standing rods and on a symmetry axis of the two standing rods.

[0068] From the above description, it can be known that, through the above structural design, the contact surface between the downward pressing rod and the rotating shaft is adapted, so that the force balance of the rotating shaft is further improved. The movable plate limits the activity track of the downward pressing rod, so that the downward pressing rod is prevented from deviating and causing uneven force of the rotating shaft. Through the above structural design, the limiting precision of the activity track of the downward pressing rod is further improved.

[0069] Further, the detection assembly is arranged on the cylinder assembly, and a movement direction of the cylinder assembly is towards the clamping position of the rotating shaft; the number of the detection assemblies is two, and the two detection assemblies are arranged at positions corresponding to two different materials of the rotating shaft respectively.

[0070] The clamping part is a tapered top joint, and the top joint is arranged on a mounting part rotatable in the vertical plane.

[0071] The grinding wheel assembly further comprises a detection rod and an angle measurer for measuring an inclination angle of the detection rod, one end of the detection rod is overlapped on the grinding disc; the number of the detection rods is three, and the three detection rods are arranged at positions corresponding to a side end surface position close to one side, a middle position and a side end surface position close to the other side of the grinding disc respectively.

[0072] From the above description, it can be known that, two detection assemblies are adopted to detect two different material positions of the rotating shaft respectively, so that the processing efficiency is improved and only the movement of the grinding disc is needed. Through the cylinder assembly, the positions of the detection assemblies can be adjusted, so that the detection assemblies are applicable to rotating shafts of different sizes. Through the above structural design, the top of the rotating shaft is clamped, and the rotating shaft can be rotated in the vertical plane. The detection rod and the angle measurer are matched to detect the wear degree of the grinding disc, so that the grinding disc can be replaced or repaired in time. The three detection rods correspond to the side end surface position close to one side, the middle position and the side end surface position close to the other side of the grinding disc, so that different positions are detected, and the grinding processing precision is ensured.

[0073] The following preferred embodiments or application embodiments are listed to help those skilled in the art better understand the technical content of the utility model and the technical contribution of the utility model compared with the prior art:

[0074] Preferred embodiment one:

[0075] As Figures 1 to 13 The utility model provides a kind of water pump rotor digitization processing device, including truss with manipulator and double-end lathe, first numerical control lathe, press, numerical control grinding machine and second numerical control lathe sequentially arranged along processing sequence;The manipulator is used to sequentially convey the water pump rotor to be processed from double-end lathe 1, first numerical control lathe 2, press, numerical control grinding machine to second numerical control lathe;

[0076] Double-end lathe 1 is used to process the center hole of the end face of the shaft to be processed and the outer side clamping position of the other end face, to facilitate the clamping and fixing of first numerical control lathe;

[0077] First numerical control lathe 2 is used for external thread processing of the middle part of the shaft processed by double-end lathe;

[0078] Double-end lathe 1 is arranged at the front end of first numerical control lathe 2, and a mechanical arm (not shown in the figure) is arranged between the double-end lathe and the first numerical control lathe, which is used to move the shaft processed by the double-end lathe to the first numerical control lathe. By arranging the mechanical arm, the shaft processed by the double-end lathe is moved to the first numerical control lathe for machining of the shaft and external thread, which is convenient to operate and does not need manual intervention.

[0079] First numerical control lathe 2 includes a first moving base 21 that can move horizontally and vertically, a first clamping assembly 22, and a first machining tool 23 arranged on one side of the first clamping assembly. The first machining tool 23 is installed on the first moving base 21 and located above the first clamping assembly 22. The first clamping assembly 22 includes a first clamping part 221 and a top part 222 arranged oppositely, which together clamp a shaft 3 of a water pump rotor. The first machining tool 23 is used for machining operation on the outer surface of the side wall of the shaft.

[0080] Double-end lathe 1 includes a second moving base 11 and a third moving base 12 that can move horizontally and vertically, a second clamping assembly 13, and two second machining tools 14 and third machining tools 15 arranged on the horizontal sides of the second clamping assembly respectively. The second machining tool 14 is installed on the second moving base 11, and the third machining tool 15 is installed on the third moving base 12, so that the second machining tool and the third machining tool can move arbitrarily, which facilitates more precise processing.

[0081] The second clamping assembly 13 is in the form of a vertically arranged annular body, and a plurality of movable blocks that can be retracted inward to form a second clamping part are arranged in the annular body, which realizes the fixation of the middle part of the shaft and facilitates the processing of the two ends thereof. The second machining tool is used for machining the outer surface of the side wall of one end of the shaft, and the third machining tool is used for machining the central position of the other end face of the shaft. The shaft is a stainless steel welded rotor.

[0082] The press 4 is used for pressing the rotating shaft processed by the first numerical control lathe into the water pump rotor to obtain the water pump rotor with the rotating shaft;

[0083] The press 4 comprises a rotating disc 41 which can rotate horizontally and a correction mechanism 42, a driving mechanism 43 and a pressing mechanism 44 which are arranged on one side of the rotating disc 41 respectively; the rotating disc 41 is provided with a containing body 411 for placing the water pump rotor to be assembled, and the containing body 411 is rotatably connected with the rotating disc 41; a driven gear 4111 is sleeved on the outer side wall of the containing body 411; the driving mechanism 43 comprises a first driving motor and a driving gear 431 which is in transmission connection with the output shaft of the first driving motor; the driving gear 431 is in engagement with the driven gear 4111; the correction mechanism 42 is located directly above the containing body 411 and is used for correcting the water pump rotor to be assembled and the rotating shaft; and the pressing mechanism 44 is located directly above the containing body and is used for pressing the corrected rotating shaft into the water pump rotor.

[0084] The correction mechanism 42 comprises first and second clamping jaws 421 and 422 which can be opened and closed; the first clamping jaw 421 is located above the second clamping jaw 422; the inner side wall of the first clamping jaw 421 is provided with a first limiting groove 4211 which is matched with the outer diameter of the rotating shaft; and the inner side wall of the second clamping jaw 422 is provided with a second limiting groove 4221 which is matched with the outer diameter of the water pump rotor. By arranging the first and second limiting grooves, the accuracy of correction alignment can be ensured; the water pump rotor and the rotating shaft can be corrected and aligned during operation, and the stress balance during the subsequent pressing process is facilitated.

[0085] A second driving motor 412 is arranged below the rotating disc 41; the output shaft of the second driving motor 412 is in transmission connection with the central position of the lower end of the rotating disc 41, so that the rotating disc can rotate horizontally, and the switching between assembly and material taking is facilitated. The rotating disc 41 is provided with two or more containing bodies 411 which are uniformly distributed along the circumferential edge of the rotating disc. In this embodiment, the number of the containing bodies is two. The upper end face of each containing body 411 is provided with a containing groove 4112 which is matched with the water pump rotor. The containing groove plays a limiting role and facilitates preliminary positioning.

[0086] The lower pressing mechanism 44 comprises a mounting bracket 441, a movable plate 442 and a lower pressing rod 443 arranged on the mounting bracket 441 and movable in the vertical direction, the mounting bracket 441 is provided with vertical standing rods 4411, the number of the standing rods 4411 is two, the two standing rods 4411 are arranged at intervals, and the lower pressing rod 443 is arranged between the two standing rods 4411 and on the symmetry axis of the two standing rods 4411. The movable plate 442 is provided with a first through hole matched with the standing rod and a second through hole matched with the lower pressing rod. The area of the lower end surface of the lower pressing rod is matched with the area of the end surface of the rotating shaft, so that the contact surface between the lower pressing rod and the rotating shaft is matched, thereby further improving the force balance of the rotating shaft. The movable plate limits the movement track of the lower pressing rod, avoids the deviation of the lower pressing rod, and causes the uneven force of the rotating shaft.

[0087] The control method of the above-mentioned press is:

[0088] The preset number of times of pressing is used to calculate the single rotation angle of the accommodating body and the corresponding pressing stroke of each pressing;

[0089] The single output of the first driving motor is obtained according to the single rotation angle of the accommodating body;

[0090] The pressure value of the pressing of the pressing mechanism is preset;

[0091] When the accommodating body is located directly below the pressing mechanism, the rotating shaft is placed on the water pump rotor to be assembled, and the controller controls the pressing mechanism to press down to the corresponding pressing stroke at the pressure value and then lifts up;

[0092] The controller controls the first driving motor to drive the accommodating body to rotate according to the single rotation angle and then stops;

[0093] It is judged whether the preset number of times of pressing is reached, if not, the pressing mechanism is controlled to press down again at the pressure value, until the preset number of times of pressing is reached, and the assembly operation is completed. In this embodiment, the number of times of pressing is three, and the single rotation angle is 120°. Through the above-mentioned mode, the assembly efficiency can be ensured under the condition of meeting the force balance. Of course, the number of times of pressing can be set to four, and the corresponding single rotation angle is 90°.

[0094] The numerical control grinding machine 5 is used for grinding the bearing groove and the stainless steel section of the water pump rotor machined by the press;

[0095] The numerical control grinding machine 5 comprises a rotatable third clamping assembly 51, a grinding wheel assembly 52 and a detection assembly 53 arranged respectively on the horizontal two sides of the third clamping assembly 51, the third clamping assembly 51 comprises two clamping portions 511 oppositely arranged and clamping a rotating shaft together, the clamping portion 511 is a tapered top joint, and the top joint is installed on a mounting portion rotatable along a vertical plane. Through the structural design, the top of the rotating shaft is clamped, and rotation along the vertical plane can be realized.

[0096] The rotating shaft comprises two different materials, the grinding wheel assembly 52 comprises a servo motor 521 and a grinding disc 522 in transmission connection with the output shaft of the servo motor, the servo motor 521 comprises two different output rotating speeds, and is matched with the different materials of the rotating shaft; the grinding wheel assembly 52 further comprises a detection rod 523 and an angle measurer for measuring the inclination angle of the detection rod, one end of the detection rod 523 is overlapped on the grinding disc 522, and the wear degree of the grinding disc is detected through the cooperation of the detection rod and the angle measurer, so as to facilitate timely replacement or maintenance, etc. In the embodiment, the number of the detection rods 523 is three, and the detection rods are arranged respectively at positions close to the side end surface, the middle position and the position close to the other side end surface of the grinding disc. The three detection rods can correspond to the positions close to the side end surface, the middle position and the position close to the other side end surface of the grinding disc, that is, the detection of different positions is realized, and the grinding precision is ensured.

[0097] The grinding wheel assembly 52 further comprises a moving mechanism 524, and the servo motor 521 is installed on the moving mechanism 524. Through the structural design, the synchronous movement of the servo motor and the grinding disc is realized. The moving mechanism 524 can be realized by using the existing mechanical structure.

[0098] The detection assembly 53 is installed on a cylinder assembly 531, and the movement direction of the cylinder assembly 531 is towards the clamping position of the rotating shaft. Through the cylinder assembly, the position of the detection assembly can be adjusted, and the rotating shafts of different sizes can be applied. The detection assembly 53 is used for detecting the outer diameter of the rotating shaft, and the existing product structure can be used, that is, there is a spring inside, the two top pins 532 outside are tightly close to the surface of the rotating shaft under the action of the spring, when the diameter of the rotating shaft is ground smaller, the distance between the two top pins is also synchronously smaller, at this time, the smaller value can be detected, that is, whether the diameter parameter required by grinding can be judged. The detection assembly and the servo motor are respectively electrically connected with the controller of the external device. That is, when the outer diameter of the rotating shaft reaches the target requirement, it is fed back to the controller, and the controller controls the servo motor to stop grinding.

[0099] The number of the detection assemblies 53 is two, and the two detection assemblies 53 are arranged respectively at positions of the two different materials of the rotating shaft. Two detection assemblies are used to detect the positions of the two different materials of the rotating shaft, which can improve the processing efficiency, and only the movement of the grinding disc is required.

[0100] The second numerical control lathe is used for processing the outer ring and knurling of the water pump rotor processed by the numerical control grinding machine, so as to obtain the processed water pump rotor.

[0101] The water pump rotor digital processing device further comprises a special machine arranged at the rear end of the second numerical control lathe in the processing sequence and a marking machine arranged at the rear end of the special machine, the special machine is used for drilling and tapping the one end face of the rotating shaft of the water pump rotor processed by the second numerical control lathe and milling a slot on the other end face, and the marking machine is used for marking the marking position on the water pump rotor processed by the special machine.

[0102] The utility model has been described by the above related embodiments and drawings, however the above embodiment is only the example of implementation of the utility model. It must be pointed out that the disclosed embodiment does not limit the scope of the utility model. On the contrary, the modification and equivalent arrangement included in the spirit and scope of the claims are included in the scope of the utility model.

Claims

1. A digital machining device for water pump rotors, characterized in that, It includes a truss with a robotic arm and a double-headed lathe, a first CNC lathe, a press, a CNC grinding machine and a second CNC lathe arranged in sequence along the processing order; the robotic arm is used to transfer the water pump rotor to be processed from the double-headed lathe, the first CNC lathe, the press and the CNC grinding machine to the second CNC lathe in sequence; The double-headed lathe is used to process the center hole on one end face of the shaft to be machined and the outer clamping position on the other end face, so that the first CNC lathe can clamp and fix it. The first CNC lathe is used to perform external thread machining on the middle part of the shaft after it has been machined by a double-headed lathe; The press is used to press the rotating shaft processed by the first CNC lathe into the water pump rotor to obtain a water pump rotor with a rotating shaft. The CNC grinding machine is used to grind the bearing section and stainless steel section of the water pump rotor after it has been processed by the press. The second CNC lathe is used to knurl the outer ring of the water pump rotor after it has been machined by the CNC grinding machine, so as to obtain the machined water pump rotor.

2. The digital processing device for a water pump rotor according to claim 1, characterized in that, It also includes a special machine located at the rear end of the second CNC lathe along the processing sequence. The special machine is used to drill and tap one end face of the water pump rotor shaft after it has been processed by the second CNC lathe, and to mill a slot on the other end face.

3. The digital processing device for a water pump rotor according to claim 2, characterized in that, It also includes a marking machine located at the rear end of the special machine along the processing sequence, the marking machine being used to mark the marking positions on the water pump rotor after processing by the special machine.

4. The digital processing device for a water pump rotor according to claim 1, characterized in that, The first CNC lathe includes a first clamping assembly and a first machining tool disposed on one side of the first clamping assembly. The first clamping assembly includes a first clamping part and a top contact part disposed opposite to each other. The first clamping part and the top contact part jointly clamp the rotating shaft after machining by the double-headed lathe. The first machining tool is used to perform machining operations on the outer surface of the side wall of the rotating shaft. The double-headed lathe includes a second clamping assembly and two second machining tools and a third machining tool disposed on the horizontal sides of the second clamping assembly respectively. The second machining tool is used to machine the outer surface of the side wall at one end of the rotating shaft, and the third machining tool is used to machine the center position of the other end face of the rotating shaft. The second clamping assembly is a vertically arranged annular body. The annular body is provided with a plurality of movable blocks that can retract inward to form a second clamping part.

5. The digital processing device for a water pump rotor according to claim 4, characterized in that, The first CNC lathe is also provided with a first movable base that can move horizontally and vertically, and the first machining tool is mounted on the first movable base and located above the first clamping assembly; the double-headed lathe is also provided with a second movable base and a third movable base that can move horizontally and vertically, the second machining tool is mounted on the second movable base, and the third machining tool is mounted on the third movable base.

6. The digital processing device for a water pump rotor according to claim 1, characterized in that, The press includes a horizontally rotatable turntable and a correction mechanism, a drive mechanism, and a pressing mechanism respectively disposed on one side of the turntable. The turntable has a housing for placing the water pump rotor to be assembled, and the housing is rotatably connected to the turntable. A driven gear is sleeved on the outer wall of the housing. The drive mechanism includes a first drive motor and a drive gear that is kinetically connected to the output shaft of the first drive motor. The drive gear meshes with the driven gear. The correction mechanism is located directly above the housing and is used to correct the water pump rotor and shaft placed to be assembled. The pressing mechanism is located directly above the housing and is used to press the corrected shaft down into the water pump rotor. The correction mechanism includes an openable first gripper and a second gripper. The first gripper is located above the second gripper. The inner wall of the first gripper has a first limiting groove that matches the outer diameter of the shaft. The inner wall of the second gripper has a second limiting groove that matches the outer diameter of the water pump rotor.

7. The digital processing device for a water pump rotor according to claim 6, characterized in that, The pressing mechanism includes a mounting bracket and a pressing rod mounted on the mounting bracket and movable in a vertical direction. The area of ​​the lower end face of the pressing rod is adapted to the area of ​​the end face of the rotating shaft. The pressing mechanism also includes a movable plate. The mounting bracket is provided with vertically arranged uprights. The movable plate is provided with a first through hole adapted to the uprights and a second through hole adapted to the pressing rod. There are two uprights, which are spaced apart from each other. The pressing rod is located between the two uprights and on the axis of symmetry of the two uprights.

8. The digital processing device for a water pump rotor according to claim 1, characterized in that, The CNC grinding machine includes a rotatable third clamping assembly and grinding wheel assemblies and a detection assembly respectively disposed on both horizontal sides of the third clamping assembly. The third clamping assembly includes two clamping parts arranged opposite each other and jointly clamping a rotating shaft. The rotating shaft is made of two different materials. The grinding wheel assembly includes a servo motor and a grinding disc drivenly connected to the output shaft of the servo motor. The servo motor has two different output speeds, which are matched to the different materials of the rotating shaft. The detection assembly is used to detect the outer diameter of the rotating shaft. The detection assembly and the servo motor are electrically connected to an external controller. The CNC grinding machine also includes a cylinder assembly. The detection assembly is mounted on the cylinder assembly, and the movement direction of the cylinder assembly is towards the clamping position of the rotating shaft. There are two detection assemblies, and the two detection assemblies are respectively arranged corresponding to the two different material positions of the rotating shaft. The clamping part is a conical top connector, which is mounted on a mounting part that can rotate along a vertical plane; The grinding wheel assembly also includes a detection rod and an angle measuring device for measuring the tilt angle of the detection rod. One end of the detection rod is attached to the grinding disc. There are three detection rods, which are respectively set at the position near one side end face, the middle position and the position near the other side end face of the grinding disc.

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