CN109571261B - Frock of bent axle correct grinding automated inspection, correction, processing - Google Patents
Frock of bent axle correct grinding automated inspection, correction, processing Download PDFInfo
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- CN109571261B CN109571261B CN201910076775.XA CN201910076775A CN109571261B CN 109571261 B CN109571261 B CN 109571261B CN 201910076775 A CN201910076775 A CN 201910076775A CN 109571261 B CN109571261 B CN 109571261B
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- crankshaft
- eccentric
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- fixing device
- tool
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- 238000012545 processing Methods 0.000 title claims abstract description 14
- 238000012937 correction Methods 0.000 title claims description 7
- 238000007689 inspection Methods 0.000 title description 2
- 238000003825 pressing Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a tool for automatically detecting, correcting and processing accurate grinding of a crankshaft, which comprises a crankshaft fixing device for placing a double-eccentric crankshaft, a side pressure tool for clamping the double-eccentric crankshaft, an eccentric positioning device for positioning the double-eccentric crankshaft, a rotating mechanism for rotating the double-eccentric crankshaft and a detecting device for detecting the outer diameter size of an eccentric part in the double-eccentric crankshaft, wherein the side pressure tool is used for fixing the double-eccentric crankshaft; the crankshaft fixing device, the eccentric positioning device and the rotating mechanism are sequentially arranged from left to right, the side pressure tool is arranged above the crankshaft fixing device, and the detecting device is arranged on one side of the crankshaft fixing device. The invention can be matched with a mechanical arm to realize automatic production, and the included angle after the double eccentric cores are accurately ground is controlled within 0.07mm, so that the reject ratio of the product is reduced; the stability of the product during production is improved, the equipment can be ensured to run stably, and the CPK value is improved; the use difficulty of operators and equipment maintenance personnel is reduced.
Description
Technical Field
The invention relates to a tool for automatically detecting, correcting and processing accurate grinding of a crankshaft, and belongs to the technical field of accurate machining of crankshafts.
Background
As shown in fig. 1, the double-eccentric crankshaft 1 mainly comprises five parts, namely a crankshaft tail 11, a crankshaft main shaft 12, a crankshaft first eccentric 13, a crankshaft second eccentric 14 and a crankshaft auxiliary shaft 15. Because the two eccentric cores of the crankshaft can generate an included angle due to various factors in the processing process, in order to ensure the use effect of the crankshaft, the left and right deflection distance of the included angle reflected on the maximum outer diameter of the eccentric cores is required to be not more than 0.07mm.
At present, in the existing double eccentric crankshaft finish machining automatic production development process, the reject ratio of products is more than 8% because the eccentric included angle does not meet the interval requirement of less than 0.07mm, the CPK value of the process capability index is extremely unstable, the quality control of the whole production is very difficult, the flattening cost is high, the waste is large, and the employee's enthusiasm is low.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a tool for automatically detecting, correcting and processing the accurate grinding of a crankshaft, which can be matched with a mechanical arm to realize automatic production, and the included angle of the accurate grinding of a double eccentric core is controlled within 0.07mm, so that the reject ratio of the product is reduced to 0.4%; the stability of the product during production is improved, the equipment can be ensured to run stably, and the CPK value is improved; the use difficulty of maintenance and repair of operators and equipment is reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a tool for automatically detecting, correcting and processing a crankshaft in accurate grinding comprises a crankshaft fixing device for placing a double-eccentric crankshaft, a side pressure tool for clamping the double-eccentric crankshaft, an eccentric positioning device for positioning the double-eccentric crankshaft, a rotating mechanism for rotating the double-eccentric crankshaft and a detecting device for detecting the outer diameter size of an eccentric part in the double-eccentric crankshaft; the crankshaft fixing device, the eccentric positioning device and the rotating mechanism are sequentially arranged from left to right, the side pressure tool is arranged above the crankshaft fixing device, and the detecting device is arranged on one side of the crankshaft fixing device.
Further, the crankshaft fixing device comprises a base, a V-shaped seat, a top tail seat and a limiting block, wherein the V-shaped seat is arranged on the base and used for placing a double-eccentric crankshaft, the top tail seat is arranged at the left end of the V-shaped seat, the limiting block is arranged at the right end of the V-shaped seat, a transversely arranged mounting hole is formed in the top tail seat, a headless bolt is connected with the left end of the mounting hole in a threaded manner, a top tail sliding block capable of sliding left and right and used for supporting the tail of the crankshaft is arranged on the right side of the headless bolt in the mounting hole, and a spring is arranged between the headless bolt and the top tail sliding block; alloy is symmetrically inlaid on two sides in the V-shaped groove of the V-shaped seat.
Further, the side pressure frock includes the mount pad and installs the copper briquetting in mount pad one end bottom.
Further, the eccentric positioning device comprises a bottom plate, a lower pressing cylinder and an eccentric positioning block which are arranged on the bottom plate in parallel, a main shaft pressing rod component which is arranged at the telescopic end of the lower pressing cylinder and used for pressing a main shaft of the crankshaft, and a tool setting gauge which is arranged on the eccentric positioning block, wherein the eccentric positioning block is of a U-shaped structure with an opening right opposite to the right end of the crankshaft fixing device, the tool setting gauge can be arranged on the rear side wall of the eccentric positioning block in an up-down adjusting manner, an induction head of the tool setting gauge right opposite to the first eccentric of the crankshaft, a notch for placing a auxiliary shaft of the crankshaft is formed in the right side wall of the eccentric positioning block, an airtight hole is formed below the notch in the right side wall of the eccentric positioning block, and an airtight access port connector communicated with the airtight hole is arranged below the bottom plate.
Further, the main shaft pressure bar assembly comprises an L-shaped connecting rod which is horizontally arranged, a pressure bar which is vertically arranged and a supporting spring, wherein the lower end of the pressure bar is provided with a pressing block, and the upper end of the pressure bar passes through the supporting spring to be connected with one end of the L-shaped connecting rod; the other end of the L-shaped connecting rod is connected with the telescopic end of the lower pressure cylinder.
Further, the rotating mechanism comprises a vertically arranged mounting plate, a three-jaw cylinder mounted on the mounting plate and used for clamping a crankshaft auxiliary shaft, and a servo motor driving the three-jaw cylinder to rotate.
Further, the servo motor and the three-jaw cylinder are arranged on the left side of the mounting plate up and down, and the output end of the servo motor penetrates through the mounting plate and is connected with the right end of the three-jaw cylinder through a transmission belt.
Further, the detection device is a Marbs detector.
Compared with the prior art, the automatic production device mainly comprises a crankshaft fixing device for placing the double-eccentric crankshaft, a side pressure tool for clamping the double-eccentric crankshaft, an eccentric positioning device for positioning the double-eccentric crankshaft, a rotating mechanism for rotating the double-eccentric crankshaft and a detecting device for detecting the outer diameter of the eccentric part in the double-eccentric crankshaft, and can be matched with a mechanical arm to be used, so that automatic production is realized, the included angle after fine grinding of the double-eccentric is controlled within 0.07mm, and the reject ratio of the product is reduced; the stability of the product in production is improved, and the equipment can be ensured to run stably and the CPK value is improved; the use difficulty of operators and equipment maintenance personnel is reduced. The eccentric positioning block adopts the mode of combining electric induction and positioning of a fixing surface, double guarantees that the induction precision of an electric inductor is 0.002mm, the installation position can be adjusted up and down and front and back conveniently, and the fixing surface adopts an alloy-inlaid mode, so that the size is more stable and the wear-resistant.
Drawings
FIG. 1 is a schematic diagram of a dual eccentric crankshaft;
FIG. 2 is a schematic diagram of a core shift positioning device according to the present invention;
FIG. 3 is a schematic structural view of the crankshaft fixing device and the side pressure tool of the present invention;
FIG. 4 is a schematic view of the crankshaft fixing device of the present invention after a double eccentric crankshaft is placed thereon;
FIG. 5 is a schematic view of the core shift positioning device of FIG. 4;
FIG. 6 is a schematic diagram of a eccentric positioning device compressing a crankshaft spindle;
FIG. 7 is a schematic view of the rotary mechanism of FIG. 6;
FIG. 8 is a schematic diagram of the structure of the present invention;
FIG. 9 is a schematic view of the present invention for detecting the outer diameter of a core shift portion;
FIG. 10 is a cross-sectional view of the pressure tool compressing a dual eccentric crankshaft.
Detailed Description
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 10, the tooling for automatic detection, correction and processing of crankshaft finish grinding provided by the embodiment of the invention comprises a crankshaft fixing device 6 for placing a double-eccentric crankshaft 1, a side pressure tooling 2 for clamping the double-eccentric crankshaft 1, a eccentric positioning device 4 for positioning the double-eccentric crankshaft 1, a rotating mechanism 3 for rotating the double-eccentric crankshaft 1 and a detecting device 5 for detecting the outer diameter size of the eccentric part in the double-eccentric crankshaft 1; the crankshaft fixing device 6, the eccentric positioning device 4 and the rotating mechanism 3 are sequentially arranged from left to right, the side pressure tool 2 is arranged above the crankshaft fixing device 6, and the detecting device 5 is vertically arranged on one side of the crankshaft fixing device 6. The rotating mechanism 3 rotates the whole double-eccentric crankshaft 1 by clamping a crankshaft auxiliary shaft 15 part, and drags the whole double-eccentric crankshaft 1 to a direction away from the crankshaft fixing device 6 after the whole double-eccentric crankshaft 1 rotates in place, so that the right end face of the second eccentric 14 (namely, a crankshaft thrust end face 16) is clung to the right side wall of the eccentric positioning device 4.
Further, the crankshaft fixing device 6 comprises a base 61, a V-shaped seat 62 installed on the base 61 and used for placing the double-eccentric crankshaft 1 to be processed, a top tail seat 63 installed at the left end of the V-shaped seat 62 and a limiting block 68 installed at the right end of the V-shaped seat 62, wherein the top tail seat 63 is provided with a transversely arranged installation hole, the left end in the installation hole is in threaded connection with a headless bolt 64, the right side of the headless bolt 64 in the installation hole is provided with a top tail sliding block 66 capable of sliding left and right and used for supporting the crankshaft tail 11, and a spring 65 is installed between the headless bolt 64 and the top tail sliding block 66; alloy is symmetrically inlaid on two sides of the V-shaped groove of the V-shaped seat 62. The V-shaped seat 62 is used for placing a part of the crankshaft main shaft 12, the headless bolt 64 compresses the spring 65, the elastic force of the spring 65 presses the tail pushing sliding block 66 tightly, the force and trend of pushing the tail pushing sliding block 66 outwards are kept, and the tail pushing sliding block 66 is ensured to prop against the crankshaft tail 11; the cooperation of the headless bolt 64, spring 65 and tail-ejection slider 66 provides a cushioning and limiting effect as the workpiece advances. The relative position of the workpiece can be adjusted by adjusting the depth to which the headless bolt 64 is threaded into the mounting hole.
Further, the side pressure tool 2 comprises a mounting seat 21 and a copper pressing block 22 arranged at the bottom of one end of the mounting seat 21. The copper pressing block 22 can prevent the main shaft 12 of the crankshaft from being damaged while pressing the crankshaft 1.
Further, the core setting device 4 includes a bottom plate 41, a lower pressing cylinder 42 and a core setting block 44 which are installed on the bottom plate 41 and are arranged in parallel, a main shaft pressing rod assembly 43 installed at the telescopic end of the lower pressing cylinder 42 and used for pressing the main shaft 12 of the crankshaft, and a tool setting gauge 45 installed on the core setting block 44, the core setting block 44 is of a U-shaped structure with an opening facing the right end of the crankshaft fixing device 6, the tool setting gauge 45 can be installed on the rear side wall of the core setting block 44 in an up-down adjusting manner, a sensing head 451 of the tool setting gauge 45 faces the first core setting 13 of the crankshaft, a notch for placing the auxiliary shaft 15 of the crankshaft is formed on the right side wall of the core setting block 44, an airtight hole 48 is formed below the notch on the right side wall of the core setting block 44, and an airtight access connector 49 communicated with the airtight hole 48 is installed below the bottom plate 41. Wherein, the space enclosed by the U-shaped eccentric core positioning block 44 and the right end of the crankshaft fixing device 6 is used for placing the first eccentric core 13 and the second eccentric core 14 of the crankshaft; the airtight hole 48 is used for detecting whether the workpiece is installed in place in the axial direction during clamping, and preventing the situation that the workpiece is collided with a grinding wheel or cannot be ground. A clamping groove which is perpendicular to the tool setting gauge 45 can be formed in the rear side wall of the core setting block 44, a kidney-shaped mounting hole 47 which penetrates through the clamping groove and penetrates through the rear side wall of the core setting block 44 is formed in the rear side wall of the core setting block 44, namely, the clamping groove divides the kidney-shaped mounting hole in the rear side wall into two parts, namely an inner kidney-shaped mounting hole and an outer kidney-shaped mounting hole; an inner nut is arranged in the clamping groove and opposite to the kidney-shaped mounting hole, an outer nut 46 is arranged on the outer side of the rear side wall of the eccentric positioning block 44 and opposite to the inner nut, and one end of the tool setting gauge 45 sequentially penetrates through the outer nut, the outer kidney-shaped mounting hole, the inner nut and the inner kidney-shaped mounting hole to be mounted and fixed. The up and down positions of the tool setting gauge 45 in the kidney-shaped mounting holes are adjusted, so that the tool setting gauge can conveniently adjust the detection position up and down, and the tool setting gauge is suitable for various products; the positioning of tool setting gauge 45 can be realized by the inner and outer nuts, and the extension length of the inside of sensing head 451 of tool setting gauge 45 can be adjusted. The eccentric positioning block adopts a mode of combining electric induction and positioning of a fixing surface, the induction precision of the electric inductor is 0.002mm, the installation position can be adjusted up and down and front and back, and the fixing surface adopts an alloy-inlaid mode, so that the size is more stable and the wear-resistant.
Further, the main shaft compression bar assembly 43 comprises a horizontally arranged L-shaped connection rod 431, a vertically arranged compression bar 432 and a supporting spring 433, wherein the lower end of the compression bar 432 is provided with a pressing block, and the upper end of the compression bar 432 passes through the supporting spring 433 to be connected with one end of the L-shaped connection rod 431; the other end of the L-shaped connecting rod 431 is connected to the telescopic end of the pressing cylinder 42. The mounting hole has been seted up to the one end that keeps away from down-pressure cylinder 42 on the L type connecting rod 431, the upper end of depression bar 432 is equipped with the external screw thread, and supporting spring 433 cover is on depression bar 432, and the upper end of depression bar 432 passes the mounting hole threaded connection and has the nut. The pressing rod 432 is located right above the crankshaft main shaft 12, and the pressing block at the lower end of the pressing rod 432 is made of copper, so that the crankshaft main shaft 12 can be prevented from being crushed. Meanwhile, the supporting spring 433 can prevent the condition that the whole crankshaft cannot rotate due to overlarge force of the pressing cylinder, so that the whole crankshaft can be ensured to normally rotate under the drive of the rotating mechanism.
Further, the rotation mechanism 3 includes a vertically arranged mounting plate 31, and a three-jaw cylinder 32 and a servo motor 33 mounted on the mounting plate 31 for clamping the crankshaft auxiliary shaft 15 and driving the three-jaw cylinder 32 to rotate.
Further, the servo motor 33 and the three-jaw cylinder 32 are disposed up and down on the left side of the mounting plate 31, and an output end of the servo motor 33 passes through the mounting plate 31 and is connected with a right end of the three-jaw cylinder 32 through a driving belt 34.
Further, the detection device 5 is a marbuss detector. Ma Busi detector can be according to actual processing demand real-time detection current to wait to process the external diameter size of eccentric periphery.
Before use, each component is mounted on the machine tool in the direction shown in fig. 8, the axial direction of the double eccentric crankshaft 1 to be processed is taken as the Z direction of the machine tool, and the mounting direction of the detection device 5 (perpendicular to the double eccentric crankshaft 1 to be processed) is taken as the X direction of the machine tool.
In use, as shown in fig. 3, the side press tooling 2 is released to give a signal to a machine tool or manipulator to prepare for adding a workpiece to be machined (the workpiece refers to a double eccentric crankshaft 1, the same applies hereinafter). Next, the workpiece to be machined is put on the crankshaft fixing device 6 as shown in fig. 4. Then, a discharging completion signal is given manually or automatically, the machine tool spindle Z moves forward, so that the double eccentric part of the workpiece moves into the groove of the eccentric positioning block 44 (the action is a set fixed stroke, and a signal is given to start the next action after the workpiece is completely moved), as shown in fig. 5. At this time, the depressing cylinder 42 is in an open state. After the double eccentric portion of the work is moved into the eccentric positioning block, the lower pressure cylinder 42 is moved down, and the crankshaft main shaft 12 is pressed by the force of the support spring 433, as shown in fig. 6.
Then, as shown in fig. 7, the rotating mechanism 3 mounted on the robot advances and clamps the crankshaft auxiliary shaft 15, and rotates by the servo motor 33, so that the first core shift 13 is turned to the tool setting gauge 45. When the manipulator receives the in-place detection signal of the tool setting gauge 45, the manipulator clamps the workpiece and drags the workpiece in a direction away from the crankshaft fixing device 6, so that the crankshaft thrust end face 16 is attached to the airtight hole 48, at the moment, the airtight detection instrument can send a signal to the machine tool to indicate that the workpiece is completely in place, at the moment, the three-jaw air cylinder 32 is loosened, and the pressure measuring tool 2 is controlled to clamp the workpiece.
When the workpiece clamping and core-shifting positioning device 4 is completely withdrawn, the Ma Busi detector moves to the upper part of the core shifting to be processed (the first crankshaft core shifting 13 or the second crankshaft core shifting 14) under the action of the machine tool X-direction guide rail and lightly presses the core shifting surface, at the moment, the workpiece can rotate 360 degrees under the rotation of the machine tool spindle, meanwhile, the Mabs detector detects the maximum outer diameter and feeds back data, and the machine tool automatically adjusts the grinding quantity of the grinding wheel arranged in the X-direction, so that correction or processing is realized. Specifically, when the workpiece rotates with the main shaft of the machine tool in a clamping state, the detection probe of the Ma Busi detector can detect outer diameter data in real time, and when the outer diameter data is transmitted to the control center of the machine tool, the grinding wheel can automatically adjust the stroke (also called tool compensation) in the X direction.
In conclusion, the invention can be matched with a mechanical arm to realize automatic production by matching all the components, the included angle of the double eccentric cores after accurate grinding is controlled within 0.07mm, the reject ratio of the product is reduced, and the reject ratio can be reduced to 0.4 percent through test; the stability of the product in production is improved, and the equipment can be ensured to run stably and the CPK value is improved; the use difficulty of operators and equipment maintenance personnel is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The tooling for automatically detecting, correcting and processing the accurate grinding of the crankshaft is characterized by comprising a crankshaft fixing device (6) for placing the double-eccentric crankshaft (1), a side pressure tooling (2) for clamping the double-eccentric crankshaft (1), a eccentric positioning device (4) for positioning the double-eccentric crankshaft (1), a rotating mechanism (3) for rotating the double-eccentric crankshaft (1) and a detecting device (5) for detecting the outer diameter size of an eccentric part in the double-eccentric crankshaft (1); the crankshaft fixing device (6), the eccentric positioning device (4) and the rotating mechanism (3) are sequentially arranged from left to right, the side pressure tool (2) is arranged above the crankshaft fixing device (6), and the detecting device (5) is arranged on one side of the crankshaft fixing device (6);
the crankshaft fixing device (6) comprises a base (61), a V-shaped seat (62) arranged on the base (61) and used for placing a double-eccentric crankshaft (1), a top tail seat (63) arranged at the left end of the V-shaped seat (62) and a limiting block (68) arranged at the right end of the V-shaped seat (62), wherein a transversely arranged mounting hole is formed in the top tail seat (63), a headless bolt (64) is connected with the left end of the mounting hole in a threaded manner, a top tail slider (66) capable of sliding left and right and used for supporting the tail part (11) of the crankshaft is arranged on the right side of the headless bolt (64), and a spring (65) is arranged between the headless bolt (64) and the top tail slider (66); alloy is symmetrically inlaid on two sides in a V-shaped groove of the V-shaped seat (62);
the side pressure tool (2) comprises a mounting seat (21) and a copper pressing block (22) arranged at the bottom of one end of the mounting seat (21);
the eccentric positioning device (4) comprises a bottom plate (41), a lower pressing cylinder (42) and an eccentric positioning block (44) which are arranged on the bottom plate (41) in parallel, a main shaft pressing rod assembly (43) which is arranged at the telescopic end of the lower pressing cylinder (42) and used for pressing a main shaft (12) of the crankshaft, and a tool setting gauge (45) which is arranged on the eccentric positioning block (44), wherein the eccentric positioning block (44) is of a U-shaped structure with an opening right opposite to the right end of the crankshaft fixing device (6), the tool setting gauge (45) can be arranged on the rear side wall of the eccentric positioning block (44) in an up-down adjusting way, a sensing head (451) of the tool setting gauge (45) is opposite to the first eccentric (13) of the crankshaft, an opening used for placing a secondary shaft (15) of the crankshaft is formed in the right side wall of the eccentric positioning block (44), an air tight hole (48) is formed below the opening in the right side wall of the eccentric positioning block (44), and an air tight access port joint (49) communicated with the air tight hole (48) is arranged below the bottom plate (41);
the rotating mechanism (3) comprises a vertically arranged mounting plate (31), a three-jaw cylinder (32) mounted on the mounting plate (31) and used for clamping a crankshaft auxiliary shaft (15), and a servo motor (33) driving the three-jaw cylinder (32) to rotate.
2. The tooling for automatic detection, correction and processing of crankshaft finish grinding according to claim 1, characterized in that the main shaft compression bar assembly (43) comprises a horizontally arranged L-shaped connecting rod (431), a vertically arranged compression bar (432) and a supporting spring (433), wherein a pressing block is arranged at the lower end of the compression bar (432), and the upper end of the compression bar passes through the supporting spring (433) to be connected with one end of the L-shaped connecting rod (431); the other end of the L-shaped connecting rod (431) is connected with the telescopic end of the pressing cylinder (42).
3. The tool for automatic detection, correction and processing of crankshaft finish grinding according to claim 1, wherein the servo motor (33) and the three-jaw cylinder (32) are arranged on the left side of the mounting plate (31) up and down, and the output end of the servo motor (33) penetrates through the mounting plate (31) and is connected with the right end of the three-jaw cylinder (32) through a transmission belt.
4. The tooling for automatic detection, correction and processing of crankshaft finish grinding according to claim 1, wherein the detection device (5) is a Ma Busi detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076775.XA CN109571261B (en) | 2019-01-27 | 2019-01-27 | Frock of bent axle correct grinding automated inspection, correction, processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076775.XA CN109571261B (en) | 2019-01-27 | 2019-01-27 | Frock of bent axle correct grinding automated inspection, correction, processing |
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| Publication Number | Publication Date |
|---|---|
| CN109571261A CN109571261A (en) | 2019-04-05 |
| CN109571261B true CN109571261B (en) | 2024-04-09 |
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| CN201910076775.XA Active CN109571261B (en) | 2019-01-27 | 2019-01-27 | Frock of bent axle correct grinding automated inspection, correction, processing |
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| CN114473662B (en) * | 2022-01-24 | 2023-08-08 | 库卡机器人(广东)有限公司 | Crankshaft machining mechanism and crankshaft machining equipment |
| CN117961653B (en) * | 2024-02-04 | 2024-07-05 | 广州市德善数控科技有限公司 | Preparation method of rotary compressor pump body assembly |
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