CN119328558B - Modularized sectional type retainer precision machining tool - Google Patents
Modularized sectional type retainer precision machining tool Download PDFInfo
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- CN119328558B CN119328558B CN202411873874.8A CN202411873874A CN119328558B CN 119328558 B CN119328558 B CN 119328558B CN 202411873874 A CN202411873874 A CN 202411873874A CN 119328558 B CN119328558 B CN 119328558B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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Abstract
The invention discloses a modular sectional type retainer precision machining tool which comprises a base, wherein a retainer blank is placed on the base, a moving module is arranged on the base, and a movable clamping module for fixing the retainer blank is arranged at the moving end of the moving module. When a certain pocket roller contact surface is machined, the movable clamping module can move to the adjacent pocket roller contact surface through the moving module in the state of clamping the retainer blank. The invention relates to the technical field of bearing processing equipment, which can be used for moving and clamping the contact surfaces of two adjacent pocket rollers so as to avoid the contact surfaces of the pocket rollers processed by a boring cutter. Restoring clamping force when moving to the contact surface of the adjacent pocket rollers, and improving the clamping and fixing effect on the contact surface of the pocket rollers processed by the retainer blank. The movable dynamic clamping capable of adjusting clamping force during and after movement is formed, and the overall machining efficiency is improved.
Description
Technical Field
The invention relates to the technical field of bearing machining equipment, in particular to a modular sectional type retainer precision machining tool.
Background
With the continuous rise of the domestic engineering machinery industry, the demand of the market for the bearing is increased year by year, and compared with the typical industry, namely the shield machine industry, the bearing has the characteristics of simple structure, large size and high processing difficulty. Particularly, the retainer needs a plurality of working procedures for processing, and has very high requirements on equipment and tools.
The existing bearing retainer for the large shield machine adopts a sectional design, a blank is sand casting, and a pocket roller contact surface and an inner diameter guide surface are subjected to subsequent finish machining. The machining size and machining precision of the casting surface of the bearing retainer are unstable, and the installation and positioning effects on subsequent machining are very large, so that the design of the tool is particularly important.
During actual processing, when finishing the pocket roller contact surface, the existing milling boring cutter can collide with the pressing plate during processing, the pressing plate part is avoided during processing in the prior art, the pressing position of the pressing plate is changed after the processing is finished to press again, and then the avoided part is reprocessed, so that the overall processing efficiency is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a modular sectional type retainer precision machining tool, which solves the problem that when the existing bearing retainer contacts with a finish machining pocket roller, the pressing position of a pressing plate needs to be changed in the machining process to press again, and then the boring cutter reprocesss the avoided part, so that the overall machining efficiency is reduced.
The modular sectional type retainer precision machining tool comprises a base, wherein a retainer blank is placed on the base, a positioning piece for clamping the retainer blank is arranged on the base, the retainer blank is provided with a retainer type region and a pocket roller contact surface, a moving module is arranged on the base, a movable clamping module for fixing the retainer blank is arranged at the moving end of the moving module, and the movable clamping module comprises:
the upper clamping table and the lower clamping table are arranged up and down oppositely, and rotatable rollers are arranged on the inner sides of the upper clamping table and the lower clamping table;
the upper support rod is connected to the upper clamping table, and the lower support rod is connected to the lower clamping table;
the height adjusting assembly is arranged on the upper supporting rod and the lower supporting rod so as to adjust the relative distance between the upper clamping table and the lower clamping table;
The bottom end of the main support rod is fixed at the moving end of the moving module, and the top end of the main support rod is fixed on the outer wall surface of the bottom of the lower support rod;
the clamping degree adjusting mechanism is arranged on the lower supporting rod and used for adjusting the height position of the horizontal plane of the lower clamping table;
When a certain pocket roller contact surface is machined, the movable clamping module can move to the adjacent pocket roller contact surface through the moving module in the state of clamping the retainer blank.
Preferably, the height adjusting assembly comprises:
The first motor is fixed at the top of the upper supporting rod;
the first main shaft penetrates through the upper supporting rod, and the top end of the first main shaft is connected with the output end of the first motor in a matched mode;
The upper support rod is inserted into the cavity at the top of the lower support rod;
the connecting table is fixed in the accommodating cavity, and a screw nut of the ball screw is fixed with the connecting table.
Preferably, the top view of the accommodating cavity is polygonal, and the cross section of the upper supporting rod is matched with the accommodating cavity.
Preferably, the clamping degree adjusting mechanism comprises a cavity formed at the bottom of the lower supporting rod, an end cover and a table frame body, wherein the bottom of the cavity is fixedly provided with the end cover;
the sliding rod is fixed at the upper end and the lower end of the table frame body;
The slot is fixed at the upper end and the lower end in the cavity, and the slide bar is inserted into the slot;
The output end of the second motor is connected with a second main shaft in a matched mode, an inclined surface wheel is fixed on the second main shaft, and the outer edge of the inclined surface wheel is abutted against the ball.
Preferably, the mobile module includes:
The grooves are formed at the front end and the rear end of the upper surface of the base;
the guide rail is fixed on the inner wall of the slot and is connected with a rack in a sliding manner; the main support rod is fixed on the rack;
the third motor is fixed on the base, a driving gear is fixed at the output end of the third motor, and the driving gear is meshed with the rack.
Preferably, the positioning piece comprises a left positioning piece and a right positioning piece which are clamped at the left end and the right end of the retainer blank;
the left positioning piece comprises a fixed positioning piece and is fixedly connected with the base;
The right positioning member includes:
the positioning table is fixedly connected with the base;
The movable positioning piece is arranged on the front side of the positioning table, a jacking bolt is connected to the movable positioning piece in a threaded mode, and the end portion of the jacking bolt abuts against the movable positioning piece.
The bottom of the base is provided with an inner bottom plate, an adjusting bolt is connected to the inner bottom plate in a threaded mode, the top end of the adjusting bolt is connected with the base in a rotating mode, guide rods are fixed to two sides of the base and penetrate through the inner bottom plate to enable the inner bottom plate to slide up and down on the wall surface of the guide rods, and supporting rods are fixed to the inner bottom plate and abut against the bottom of a retainer blank after penetrating through the base.
Preferably, grooves are formed in the bottoms of two sides of the base, a pedestal is fixed in the grooves, a positioning device is arranged on the pedestal, and the positioning device is abutted against the retainer type area after penetrating through the grooves;
the positioning device comprises a first supporting piece and a second supporting piece, the tops of the first supporting piece and the second supporting piece are hinged, the bottoms of the first supporting piece and the second supporting piece are fixed on the pedestal through bolts, and a plurality of bolt holes are pre-formed in the pedestal.
Preferably, the outer wall surfaces of the first supporting piece and the second supporting piece are arc-shaped outer wall surfaces, protruding supporting points are arranged at the tops of the first supporting piece and the second supporting piece, and the arc-shaped outer wall surfaces and the protruding supporting points are abutted to the retainer type area.
Preferably, the pedestal is provided with a boss, and the bottoms of the first support piece and the second support piece are provided with sliding grooves which are matched with the boss.
Compared with the prior art, the modular sectional type retainer precision machining tool has the advantages that when each movable clamping module is clamped on the frame part of the retainer blank, the movable clamping module can movably clamp the contact surfaces of two adjacent pocket rollers, so that the contact surfaces of the pocket rollers machined by the boring cutter are avoided, and the machined pocket roller contact surfaces are machined at one time. And when the adjacent pocket roller contact surfaces are processed, the clamping force of the lower clamping table is finely adjusted by the clamping adjusting mechanism, so that the movable clamping modules can be conveniently moved. Restoring clamping force when moving to the contact surface of the adjacent pocket rollers, and improving the clamping and fixing effect on the contact surface of the pocket rollers processed by the retainer blank. The movable dynamic clamping capable of adjusting clamping force during and after movement is formed, and the overall machining efficiency is improved.
Drawings
FIG. 1 is a view of a retainer blank of the present invention secured to a base;
FIG. 2 is a top view of a mobile module according to the present invention;
FIG. 3 is a schematic perspective view of a movable clamping module according to the present invention;
FIG. 4 is a front view of the movable clamp module of the present invention;
FIG. 5 is a schematic view of the clamping degree adjusting mechanism of the present invention;
FIG. 6 is a front view of the base of the present invention;
FIG. 7 is a top view of the positioning device of the present invention;
FIG. 8 is a front view of the positioning device of the present invention;
FIG. 9 is a schematic view of a bevel wheel construction according to the present invention;
Fig. 10 is an enlarged view of the structure of fig. 5a in accordance with the present invention.
Reference numerals in the drawings illustrate
1. The device comprises a base, 2, a retainer blank, 21, a retainer V-shaped area, 22, a pocket roller contact surface, 3, a positioning device, 31, a first supporting piece, 32, a second supporting piece, 33, an arc-shaped outer wall surface, 34, a convex supporting point, 4, a fixed positioning piece, 5, a movable clamping module, 51, an upper clamping table, 52, a roller, 53, a lower clamping table, 54, a first motor, 55, an upper supporting rod, 56, a lower supporting rod, 57, a main supporting rod, 58, a first main shaft, 59, a connecting table, 510, a ball screw, 511, a table frame, 512, a second main shaft, 513, an inclined surface wheel, 514, a second motor, 515, a ball, 516, a slide bar, 517, a slot, 6, a slot, 7, a supporting rod, 8, a rack, 9, a guide rail, 10, a driving gear, 11, a third motor, 12, an inner bottom plate, 13, an adjusting bolt, 14, a movable positioning piece, 15, a positioning table, 16, a top bolt, 17, a guide bar, 18, a groove, 19 and a pedestal.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Various modifications can be made to the embodiments as long as the effects of the present invention can be exerted.
The components in the present case are sequentially connected by a person skilled in the art, and specific connection and operation sequence should be referred to the following working principle, and the detailed connection means thereof are known in the art, and the following working principle and process are mainly described.
A modular segment type cage precision tooling of this embodiment will be described with reference to fig. 1-9.
The fixture comprises a base 1, wherein a retainer blank 2 is placed on the base 1, a positioning piece for clamping the retainer blank 2 is arranged on the base 1, and the retainer blank 2 is provided with a retainer V-shaped area 21 and a pocket roller contact surface 22.
In the present embodiment, as shown in fig. 1, a movable module is provided on a base 1, and a movable clamping module 5 for fixing a holder blank 2 is provided at a movable end of the movable module. The movable clamping module 5 is clamped on the frame of the retainer blank 2, and the movable clamping module 5 is driven to move on the contact surfaces 22 of two adjacent pocket rollers in a clamping state so as to avoid the pocket roller contact surfaces 22 processed by the boring cutter, so that the processed pocket roller contact surfaces 22 are processed at one time.
As shown in fig. 3, 4 and 5, the movable clamping module 5 includes an upper clamping table 51, a lower clamping table 53, and upper and lower support bars 55, 56 and height adjustment assemblies, a main support bar 57 and a clamping degree adjustment mechanism. The upper supporting rod 55 is inserted into the accommodating cavity at the top of the lower supporting rod 56;
Specifically, the upper and lower clamping tables 51 and 53 are disposed opposite to each other up and down, and rotatable rollers 52 are disposed inside the upper and lower clamping tables 51 and 53, the rollers 52 being rigid and maintaining a clamping force during movement. An upper support bar 55 is connected to the upper clamping table 51, and a lower support bar 56 is connected to the lower clamping table 53. The height adjusting components are arranged on the upper supporting rod 55 and the lower supporting rod 56 to adjust the relative distance between the upper clamping table 51 and the lower clamping table 53, the disassembly and assembly process of the retainer blank 2 are convenient when the opening and closing degree is maximum, and the height adjusting components adjust the upper clamping table 51 to descend so that the two rollers 52 are clamped on the frame of the retainer blank 2 to achieve fixation.
The bottom end of the main supporting rod 57 is fixed at the moving end of the moving module, and the top end of the main supporting rod 57 is fixed on the bottom outer wall surface of the lower supporting rod 56. The clamping degree adjusting mechanism is provided on the lower support rod 56 for adjusting the level position of the lower clamping table 53. When a certain pocket roller contact surface 22 is processed, the movable clamping module 5 can move to the adjacent pocket roller contact surface 22 through the moving module in the state of clamping the retainer blank 2, and when the movable clamping module moves, the clamping force of the two rollers 52 can be finely adjusted through the clamping degree adjusting mechanism so as to facilitate movement. Meanwhile, when the boring cutter processes the pocket roller contact surface 22, the lower clamping table 53 in the adjacent movable clamping modules 5 is adjusted by the clamping degree adjusting mechanism to move upwards, so that the clamping force is improved, the clamping stability of the retainer blank 2 is enhanced, and the machined retainer blank 2 is ensured to have high precision.
As shown in fig. 4, the height adjustment assembly includes a first motor 54, a first spindle 58, a cavity, and a connecting table 59. The first motor 54 is fixed at the top of the upper supporting rod 55, the first main shaft 58 penetrates through the upper supporting rod 55, the top end of the first main shaft 58 is connected with the output end of the first motor 54 in a matched mode, a ball screw 510 is fixed at the bottom of the first main shaft 58, a containing cavity is formed at the top of the lower supporting rod 56, a connecting table 59 is fixed in the containing cavity, and a screw nut of the ball screw 510 is fixed with the connecting table 59. The first motor 54 drives the first spindle 58 and the ball screw 510 to rotate, and nuts on the ball screw 510 are arranged on the connecting table 59, and when the ball screw 510 rotates, the connecting table 59 drives the lower supporting rod 56 and the upper supporting rod 55 to move relatively, so that the upper clamping table 51 and the lower clamping table 53 move relatively, and the rollers 52 are abutted against or far away from the frame of the clamping holder blank 2.
The height adjusting assembly is further described in terms of being capable of driving the fixed object to move along the length direction of the roller screw 510 as the screw nut moves on the roller screw 510 when both ends of the roller screw 510 are fixed and the screw nut is fixed on a fixed object, and moving up and down in the screw nut when the screw nut 510 rotates when both ends of the roller screw 510 are not fixed and the screw nut is fixed on a fixed object. In combination with this, since the first spindle 58 rotates in the upper support rod 55, the roller screw 510 is fixed on the first spindle 58, and when the first motor 54 drives the first spindle 58 and the roller screw 510 to rotate, the roller screw 510 moves up and down in the screw nut, thereby driving the upper support rod 55 to move up and down in the cavity at the top of the lower support rod 56.
In one embodiment, the top view of the cavity is polygonal, and the cross section of the upper support rod 55 is adapted to the cavity.
As shown in fig. 5, the clamping degree adjusting mechanism comprises a cavity formed at the bottom of the lower support rod 56, an end cover fixed at the bottom of the cavity, a strip-shaped slot formed at one side of the cavity close to the lower clamping table 53, a table frame 511, a slide bar 516, a slot 517 and a second motor 514. One end of the table frame 511 is fixed to the lower clamping table 53, and the other end is inserted into the cavity through a bar-shaped slot, the height of which is larger than that of the table frame 511. The end face of the table frame body 511 inserted into the cavity is provided with a groove, the upper end and the lower end of the groove are rotatably provided with balls 515, a slide bar 516 is fixed at the upper end and the lower end of the table frame body 511, a slot 517 is fixed at the upper end and the lower end in the cavity, the slide bar 516 is inserted into the slot 517, the table frame body 511 drives the slide bar 516 to slide up and down in the slot 517 when moving up and down, a second motor 514 is fixed on an end cover, the output end of the second motor 514 is connected with a second main shaft 512 in a matched mode, an inclined surface wheel 513 is fixed on the second main shaft 512, and the outer edge of the inclined surface wheel 513 is abutted against the balls 515. When the clamping force needs to be adjusted, the second motor 514 works to drive the second main shaft 512 and the bevel wheel 513 to rotate, and when the bevel wheel 513 rotates, the table frame 511 is shifted up and down through the bevel design, and when the table frame 511 moves up and down, the sliding rods 516 at the two ends of the table frame 511 slide in the slots 517. The table frame 511 moves up and down to drive the lower holding table 53 to fine-adjust up and down.
As shown in fig. 1 and 2, the mobile module comprises a slot 6, a guide rail 9 and a third motor 11. The slot 6 is formed at the front and rear ends of the upper surface of the base 1, the guide rail 9 is fixed on the inner wall of the slot 6, the rack 8 is connected on the guide rail 9 in a sliding manner, the main supporting rod 57 is fixed on the rack 8, the third motor 11 is fixed on the base 1, the driving gear 10 is fixed at the output end of the third motor 11, and the driving gear 10 is meshed with the rack 8. As shown in fig. 2, in the initial state, the rack bar 8 is positioned at the left side of the guide rail 9, and the main support bar 57 is fixed at the right end position of the rack bar 8. When the movable clamping module is in operation, the third motor 11 works to drive the driving gear 10 to rotate, the driving rack 8 transversely moves on the guide rail 9, and the driving rack 8 drives the movable clamping module 5 to transversely move, so that the movable clamping module 5 moves from the pocket roller contact surface 22 of the pressed retainer blank 2 to the pocket roller contact surface 22 on the right side.
As shown in fig. 1 and 6, the positioning members include left positioning members and right positioning members clamped at the left and right ends of the retainer blank 2, and are used for fixedly clamping the left and right sides of the retainer blank 2, and the positioning members and the movable clamping modules 5 cooperate to fix the retainer blank 2 circumferentially. The left positioning piece comprises a fixed positioning piece 4 fixedly connected with the base 1, the left side wall surface of the retainer blank 2 is attached to the fixed positioning piece 4, the right positioning piece comprises a positioning table 15 and a movable positioning piece 14, the positioning table 15 is fixedly connected with the base 1, the movable positioning piece 14 is arranged on the front side of the positioning table 15, the movable positioning piece 14 is in threaded connection with a jacking bolt 16, and the end part of the jacking bolt 16 is abutted against the movable positioning piece 14. The movable positioning piece 14 is driven to transversely move through adjustment of the jacking bolts 16, so that the movable positioning piece 14 is attached to the right side wall surface of the retainer blank 2, and positioning and fixing of the two ends of the retainer blank 2 are completed.
As shown in fig. 6, a bottom support module is arranged at the bottom of the base 1, the bottom support module comprises an inner bottom plate 12, an adjusting bolt 13 is connected to the inner bottom plate 12 in a threaded manner, the top end of the adjusting bolt 13 is rotatably connected with the base 1, guide rods 17 are fixed to two sides of the base 1, the guide rods 17 penetrate through the inner bottom plate 12 to enable the inner bottom plate 12 to slide up and down on the wall surface of the guide rods 17, a supporting rod 7 is fixed to the inner bottom plate 12, and the supporting rod 7 penetrates through the base 1 and then abuts against the bottom of the retainer blank 2. When in operation, the adjusting bolt 13 is rotated to drive the inner bottom plate 12 to move up and down. The guide rod 17 guides the up-and-down movement of the inner bottom plate 12 when the inner bottom plate 12 moves up and down, drives the support rod 7 to move up and down when the inner bottom plate 12 moves up and down, and supports the retainer blank 2 by abutting against the bottom of the retainer blank 2 when the support rod 7 moves up. The supporting rods 7 are arranged on the inner bottom plate 12, and all the supporting rods 7 are enabled to synchronously lift up and down along with the inner bottom plate 12 through the cooperation of the adjusting bolts 13 and the guide rods 17, so that the adjusting time of each supporting rod 7 can be greatly reduced, the working time is saved, and the efficiency is improved.
As shown in fig. 6 and 7, grooves 18 are formed in the bottoms of the two sides of the base 1, a pedestal 19 is fixed in the grooves 18, and a boss is formed on the pedestal 19. The pedestal 19 is provided with a positioning device 3 which is abutted against the V-shaped area 21 of the retainer after penetrating through the base 1 to radially position the retainer blank 2. As shown in fig. 8, the positioning device 3 comprises a first supporting plate 31 and a second supporting plate 32, wherein the top parts of the first supporting plate 31 and the second supporting plate 32 are hinged, the bottom parts of the first supporting plate 31 and the second supporting plate 32 are fixed on a pedestal 19 through bolts, and a plurality of bolt holes are pre-formed on the pedestal 19. The bottoms of the first supporting piece 31 and the second supporting piece 32 are provided with sliding grooves which are matched with the bosses. The opening angle of the first support piece 31 and the second support piece 32 is adjusted by fixing bolts in different bolt holes so as to be matched with the retainer V-shaped areas 21 of retainer blanks 2 of different types.
The outer wall surfaces of the first supporting piece 31 and the second supporting piece 32 are arc-shaped outer wall surfaces 33, and the arc-shaped outer wall surfaces 33 are abutted against the side wall surfaces of the retainer V-shaped area 21 to form a first contact supporting point. The top of the first supporting piece 31 and the second supporting piece 32 are provided with protruding supporting points 34 in a protruding mode, and the protruding supporting points 34 are abutted against the upper wall surface of the V-shaped area 21 of the retainer to form second contact supporting points.
In the preparation stage, bolts at the bottoms of the first supporting piece 31 and the second supporting piece 32 are firstly fixed in corresponding bolt holes according to the type of the retainer blank 2, and the opening angle of the first supporting piece 31 and the second supporting piece 32 is adjusted to be matched with the type of the V-shaped area 21 of the retainer of the machined retainer blank 2. The base 1 is mounted on a machine tool. The holder blank 2 is placed on the base 1 and is lapped over the lower clamping table 53. The left side of the retainer blank 2 is abutted against the fixed locating piece 4, and the right side of the retainer blank is adjusted through the jacking bolts 16 to drive the movable locating piece 14 to transversely move, so that the movable locating piece 14 is attached to the right side wall surface of the retainer blank 2, and the retainer blank 2 is matched with the fixed locating piece 4 to fix the two ends of the retainer blank 2.
The first motor 54 drives the first spindle 58 and the ball screw 510 to rotate, and the ball screw 510 drives the lower support rod 56 and the upper support rod 55 to move relatively through the connecting table 59 when rotating, so that the upper clamping table 51 and the lower clamping table 53 move relatively, and the two rollers 52 are abutted against the frame of the retainer blank 2.
The adjusting bolts 13 are rotated to enable the inner bottom plate 12 to move upwards, so that all the supporting rods 7 synchronously lift along with the inner bottom plate 12 to collide with the bottom of the frame of the retainer blank 2. The first support piece 31 and the second support piece 32 abut against the cage V-shaped area 21.
In the machining stage, the boring cutter penetrates into the pocket roller contact surface 22, and the inner wall surface of the pocket roller contact surface 22 is machined. When an adjacent pocket roller contact surface 22 is machined, the third motor 11 works to drive the driving gear 10 to rotate, the driving rack 8 transversely moves on the guide rail 9, and the driving rack 8 drives the movable clamping module 5 to transversely move, so that the movable clamping module 5 is kept away from the pocket roller contact surface 22 to be machined. Before the movable clamping module 5 transversely moves, the second motor 514 is operated to drive the second main shaft 512 and the inclined surface wheel 513 to rotate 180 degrees, when the inclined surface wheel 513 rotates and the inclined surface wheel rotates to contact the balls 515 from the lower end surface through the inclined surface of the inclined surface wheel 513, the stirring table frame 511 moves downwards to drive the lower clamping table 53 to downwards, clamping force of the two rollers 52 is relieved, at the moment, the two rollers 52 clamp the frame of the retainer blank 2 to transversely move, when the movable clamping module 5 moves to the adjacent pocket roller contact surface 22, the second motor 514 is operated to drive the second main shaft 512 and the inclined surface wheel 513 to continuously rotate 180 degrees, when the inclined surface wheel 513 rotates and the inclined surface wheel 513 rotates to contact the balls 515 from the upper end surface of the inclined surface wheel through the inclined surface of the inclined surface wheel 513, the stirring table frame 511 moves upwards to drive the lower clamping table 53 to upwards, the clamping force of the lower clamping table 53 is adjusted, and the clamping fixing effect on the pocket roller contact surface 22 machined by the retainer blank 2 is improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The modularized sectional type retainer precision machining tool comprises a base (1), wherein a retainer blank (2) is placed on the base (1), a positioning piece for clamping the retainer blank (2) is arranged on the base (1), the retainer blank (2) is provided with a retainer V-shaped area (21) and a pocket roller contact surface (22), and the tool is characterized in that a movable module is arranged on the base (1), a movable clamping module (5) for fixing the retainer blank (2) is arranged at the movable end of the movable module, and the movable clamping module (5) comprises:
An upper clamping table (51) and a lower clamping table (53) which are arranged vertically opposite to each other, wherein rotatable rollers (52) are arranged on the inner sides of the upper clamping table (51) and the lower clamping table (53);
An upper supporting rod (55) and a lower supporting rod (56), wherein the upper supporting rod (55) is connected to the upper clamping table (51), and the lower supporting rod (56) is connected to the lower clamping table (53);
the height adjusting component is arranged on the upper supporting rod (55) and the lower supporting rod (56) to adjust the relative distance between the upper clamping table (51) and the lower clamping table (53), and comprises:
The first motor (54) is fixed at the top of the upper supporting rod (55);
The first main shaft (58) penetrates through the upper supporting rod (55), and the top end of the first main shaft is connected with the output end of the first motor (54) in a matched mode, and a ball screw (510) is fixed at the bottom of the first main shaft (58);
The upper support rod (55) is inserted into the cavity at the top of the lower support rod (56);
The connecting table (59) is fixed in the accommodating cavity, and a screw nut of the ball screw (510) is fixed with the connecting table (59);
The bottom end of the main support rod (57) is fixed at the moving end of the moving module, and the top end of the main support rod (57) is fixed on the outer wall surface of the bottom of the lower support rod (56);
The clamping degree adjusting mechanism is arranged on the lower supporting rod (56) and is used for adjusting the horizontal plane height position of the lower clamping table (53);
When one pocket roller contact surface (22) is processed, the movable clamping module (5) can move to the adjacent pocket roller contact surface (22) through the moving module in the state of clamping the retainer blank (2).
2. The modular segmented cage precision machining tool of claim 1, wherein the top view of the cavity is polygonal, and the cross section of the upper support rod (55) is matched with the cavity.
3. The modular segmented cage finishing tool of claim 1, wherein the clamping degree adjustment mechanism comprises a cavity formed in the bottom of the lower support bar (56), an end cap secured to the bottom of the cavity, and
A table frame body (511), one end of which is fixed with the lower clamping table (53) and the other end of which is inserted into the cavity, wherein a groove is formed on the end surface of the table frame body (511) inserted into the cavity, and balls (515) are rotatably arranged at the upper end and the lower end of the groove;
Slide bars (516) fixed at the upper and lower ends of the table frame body (511);
The slot (517) is fixed at the upper end and the lower end in the cavity, and the slide bar (516) is inserted into the slot (517), and the table frame body (511) drives the slide bar (516) to slide up and down in the slot (517);
The second motor (514) is fixed on the end cover, the output end of the second motor (514) is connected with a second main shaft (512) in a matched mode, an inclined surface wheel (513) is fixed on the second main shaft (512), and the outer edge of the inclined surface wheel (513) is abutted against the ball (515).
4. The modular segmented cage finishing tool of claim 1, wherein said mobile module comprises:
slots (6) formed at front and rear ends of the upper surface of the base (1);
The guide rail (9) is fixed on the inner wall of the slot (6), and the guide rail (9) is connected with the rack (8) in a sliding way;
The third motor (11) is fixed on the base (1), a driving gear (10) is fixed at the output end of the third motor (11), and the driving gear (10) is meshed with the rack (8).
5. The modular segmented cage precision machining tool of claim 1, wherein the positioning pieces comprise left positioning pieces and right positioning pieces clamped at left and right ends of a cage blank (2);
the left positioning piece comprises a fixed positioning piece (4) which is fixedly connected with the base (1);
The right positioning member includes:
the positioning table (15) is fixedly connected with the base (1);
The movable positioning piece (14) is arranged on the front side of the positioning table (15), the movable positioning piece (14) is connected with a jacking bolt (16) in a threaded mode, and the end portion of the jacking bolt (16) abuts against the movable positioning piece (14).
6. The modularized sectional type retainer precision machining tool disclosed by claim 1 is characterized in that an inner bottom plate (12) is arranged at the bottom of a base (1), an adjusting bolt (13) is connected to the inner bottom plate (12) in a threaded mode, the top end of the adjusting bolt (13) is rotationally connected with the base (1), guide rods (17) are fixed to two sides of the base (1), the guide rods (17) penetrate through the inner bottom plate (12) to enable the inner bottom plate (12) to slide up and down on the wall surface of the guide rods (17), support rods (7) are fixed to the inner bottom plate (12), and the support rods (7) penetrate through the base (1) and then abut against the bottom of a retainer blank (2).
7. The modular segmented cage precision machining tool according to claim 1, wherein grooves (18) are formed in the bottoms of two sides of the base (1), a pedestal (19) is fixed in the grooves (18), a positioning device (3) is arranged on the pedestal (19), and the positioning device abuts against a V-shaped area (21) of the cage after penetrating through the grooves (18);
The positioning device (3) comprises a first supporting plate (31) and a second supporting plate (32), the tops of the first supporting plate (31) and the second supporting plate (32) are hinged, the bottoms of the first supporting plate and the second supporting plate are fixed on the pedestal (19) through bolts, and a plurality of bolt holes are pre-formed in the pedestal (19).
8. The modular segment type retainer precision machining tool of claim 7, wherein the outer wall surfaces of the first supporting plate (31) and the second supporting plate (32) are arc-shaped outer wall surfaces (33), protruding supporting points (34) are arranged on the tops of the first supporting plate (31) and the second supporting plate (32) in a protruding mode, and the arc-shaped outer wall surfaces (33) and the protruding supporting points (34) are abutted to the retainer V-shaped area (21).
9. The modular segment type retainer precision machining tool of claim 7, wherein the pedestal (19) is provided with a boss, and the bottoms of the first supporting piece (31) and the second supporting piece (32) are provided with sliding grooves which are matched with the boss.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110465817A (en) * | 2019-09-25 | 2019-11-19 | 中国航发哈尔滨轴承有限公司 | The frock clamp and retainer pocket hole fore shaft processing method of retainer mill outer step pawl |
| CN112404911A (en) * | 2020-12-07 | 2021-02-26 | 大连瑞谷科技有限公司 | Processing technology for pocket hole of spherical roller bearing retainer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007120766A (en) * | 1999-04-28 | 2007-05-17 | Nsk Ltd | Cage for rolling bearing |
| CN211867171U (en) * | 2019-12-27 | 2020-11-06 | 洛阳轴承研究所有限公司 | Frock clamp of bearing retainer |
| CN218396057U (en) * | 2022-10-19 | 2023-01-31 | 石家庄凯普特动力传输机械有限责任公司 | Rotatable inclined hole processing tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465817A (en) * | 2019-09-25 | 2019-11-19 | 中国航发哈尔滨轴承有限公司 | The frock clamp and retainer pocket hole fore shaft processing method of retainer mill outer step pawl |
| CN112404911A (en) * | 2020-12-07 | 2021-02-26 | 大连瑞谷科技有限公司 | Processing technology for pocket hole of spherical roller bearing retainer |
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