CN114571388A - Machining fixing device for shaft parts and debugging method of machining fixing device - Google Patents
Machining fixing device for shaft parts and debugging method of machining fixing device Download PDFInfo
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- CN114571388A CN114571388A CN202210301530.4A CN202210301530A CN114571388A CN 114571388 A CN114571388 A CN 114571388A CN 202210301530 A CN202210301530 A CN 202210301530A CN 114571388 A CN114571388 A CN 114571388A
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- 238000003754 machining Methods 0.000 title claims description 16
- 238000003825 pressing Methods 0.000 claims abstract description 61
- 238000012545 processing Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
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- 238000013461 design Methods 0.000 description 1
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- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
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Abstract
The invention relates to a processing and fixing device for shaft parts and a debugging method thereof, and aims to solve the technical problems of complex operation, long time and low efficiency of the conventional shaft parts during horizontal positioning. The device comprises a base, an adjustable supporting component and a fixed supporting component, wherein the adjustable supporting component comprises an adjustable V-shaped block, a first adjustable pressing unit and an adjusting unit; the adjusting unit comprises a U-shaped frame, a cross beam arranged in the U-shaped frame, an adjusting screw rod and a locking screw, and the adjusting screw rod penetrates through the cross beam from the lower end and then is abutted to the lower end of the adjustable V-shaped block; the locking screw is abutted against the side face of the adjustable V-shaped block. The method comprises the steps of 1, installing a processing fixing device, and adjusting the straightness to be less than or equal to 0.02 through a cylindrical standard part; 2. selecting two positioning circles, and calculating the number of turns of the adjusting screw rod to be rotated according to the radius of the two positioning circles; 3. measuring the straightness of the upper end of the part to be processed after adjustment to enable the straightness to be less than or equal to 0.02; 4. and measuring and taking down the part to be processed.
Description
Technical Field
The invention relates to a processing fixing device and a debugging method thereof, in particular to a processing fixing device for shaft parts and a debugging method thereof.
Background
As is known, the combined clamp is simple to manufacture, low in cost, wide in use and various in combination form, so that the combined clamp becomes the earliest and most clamping element, is widely applied to a clamping and positioning structure of mechanical engineering and plays an important role in various fields of national economy. However, the assembling of the combined clamp is very tedious, and when the shaft parts are positioned, in order to ensure that the axes of the parts are in a horizontal state, proper cushion blocks need to be calculated and selected for height adjustment. Typically 3-4 pads are required for stacking. Therefore, how to conveniently level the axis of the shaft part is very important.
At present, in the trial production process of a new product, a combined clamp is generally used for fixing a part to be processed, and as shown in fig. 1, the combined clamp fixing device comprises a bottom plate 01, a V-shaped block 02, a pressure plate 03 and a series of cushion blocks 04 with different thicknesses; the lower part of the part to be processed is supported by a V-shaped block 02, the height of the part to be processed is adjusted by a cushion block 04 according to the difference of the corresponding diameters of a first positioning point and a second positioning point between the two pressing plates 03 and the part to be processed, and the upper part of the part to be processed is pressed and fixed by the pressing plates 03; because the height adjustment by using the cushion blocks 04 is discontinuous, the process of calculating the thickness of the cushion blocks 04, adjusting the number of the cushion blocks 04 and assembling the combined clamp can seriously influence the debugging time of parts.
Chinese patent with publication number CN207534420U discloses an axle type part fixing clamp that punches, and this fixing clamp can realize adjusting the height of the crankshaft to be processed that sets up on the V-shaped groove through the position of adjusting the layer board and the height of the V-shaped groove, and then realize punching different positions of the crankshaft. However, the height of the fixing clamp is mainly adjusted to realize the height adjustment of the crankshaft to be machined, and a specific leveling mode of the crankshaft to be machined on the V-shaped groove is not disclosed.
Chinese patent publication No. CN211192577U discloses a positioning device for processing shaft parts, which rotates a screw rod via a rotating wheel, so that the screw rod drives a threaded sleeve to move downward, and then an ejector rod pulls four sliding blocks fixed to clamping legs to move to the center of a circle, and the four clamping legs simultaneously act on the surface of the shaft part, so that the axis of the shaft part can coincide with the center of a circle of an upper chuck when the four clamping legs move synchronously. However, the positioning device provided by the patent positions one end of the shaft part to be processed, and does not relate to the problem of fixing and leveling the shaft part along the extending direction.
Disclosure of Invention
The invention aims to solve the technical problems of complex operation, long time and low efficiency of the existing shaft part during horizontal positioning, and provides a processing and fixing device for the shaft part and a debugging method thereof.
The technical scheme of the invention is as follows:
a processing fixing device for axle type part, its characterized in that: comprises a base, an adjustable supporting component and a fixed supporting component which are arranged on the base;
the adjustable supporting assembly comprises an adjustable V-shaped block, a first adjustable pressing unit arranged at the upper end of the adjustable V-shaped block and an adjusting unit arranged at the lower end of the adjustable V-shaped block;
the fixed support assembly comprises a fixed V-shaped block and a second adjustable pressing unit arranged on the fixed V-shaped block;
the first adjustable pressing unit and the second adjustable pressing unit are used for pressing and fixing a part to be processed;
the adjusting unit comprises a U-shaped frame, a cross beam arranged in the U-shaped frame, an adjusting screw rod and a locking screw, the cross beam is provided with a threaded through hole, and the adjusting screw rod penetrates through the threaded through hole from the lower end of the cross beam and then abuts against the lower end of the adjustable V-shaped block;
the locking screw penetrates through the outer side face of the U-shaped frame, can abut against the side face of the adjustable V-shaped block and is used for locking and fixing the adjustable V-shaped block after being adjusted to a proper position.
Furthermore, the first adjustable pressing unit comprises a first supporting rod arranged on the upper end surface of the adjustable V-shaped block, a first pressing plate rotatably connected with the first supporting rod and a first spiral pressing rod, a first internal thread hole is formed in the first pressing plate, a first external thread matched with the first internal thread hole is formed in the first spiral pressing rod, and a first pressing block is arranged at one end, close to the adjustable V-shaped block, of the first spiral pressing rod;
the second adjustable pressing unit comprises a second supporting rod arranged on the upper end face of the fixed V-shaped block, a second pressing plate and a second spiral pressing rod, wherein the second pressing plate is rotatably connected with the second supporting rod, a second internal thread hole is formed in the second pressing plate, a second external thread matched with the second internal thread hole is arranged on the second spiral pressing rod, and a second pressing block is arranged at one end, close to the fixed V-shaped block, of the second spiral pressing rod.
Furthermore, the lower end of the adjustable V-shaped block is provided with a blind hole, and the adjusting screw penetrates through the threaded through hole from the lower end of the cross beam and then is inserted into the blind hole.
Furthermore, the included angle between the two inclined planes of the V-shaped groove of the adjustable V-shaped block and the V-shaped groove of the fixed V-shaped block ranges from 60 degrees to 120 degrees.
Furthermore, the adjustable supporting component and the fixed supporting component are fixedly connected with the base through fixing screws and nuts;
the base is provided with a plurality of sliding grooves, and the end caps of the fixing screws are matched with the sliding grooves and used for realizing the free sliding of the end caps of the fixing screws in the sliding grooves;
the sliding grooves comprise a plurality of long sliding grooves parallel to the extending direction of the part to be processed and a plurality of short sliding grooves which are perpendicular to the extending direction of the part to be processed and are intersected with the long sliding grooves 11.
Meanwhile, the invention also provides a debugging method of the processing and fixing device for the shaft parts, which is characterized by comprising the following steps of:
s1, installing a processing fixing device, installing a cylindrical standard part between the adjustable V-shaped block and the fixed V-shaped block, and screwing a locking screw; respectively carrying out straightness detection on the upper end and the side end of the cylindrical standard component along the extension direction of the cylindrical standard component, and measuring to obtain the straightness F1 of the upper end of the cylindrical standard component and the straightness F2 of the side end of the cylindrical standard component, wherein if F1 is less than or equal to 0.02 and F2 is less than or equal to 0.02, the processing and fixing device is leveled; if F1 is greater than 0.02, fine adjustment is carried out on an adjusting screw rod at the lower end of the adjustable V-shaped block; if F2 is greater than 0.02, fine adjustment is carried out on the bottom plate; until the straightness of the cylindrical standard component meets the requirement;
s2, taking down the cylindrical standard part, selecting a first positioning circle and a second positioning circle on the part to be processed, and measuring the diameters of the first positioning circle and the second positioning circle respectively; moving the adjustable support assembly and the fixed support assembly which are leveled in the step S1 to proper positions, enabling the first positioning circle to be abutted with the adjustable V-shaped block and the second positioning circle to be abutted with the fixed V-shaped block;
s3, according to the formula
And a formula N is H/P, and the number of turns of the adjusting screw rod needing to rotate is calculated, wherein H is the height needing to be adjusted, R1 is the radius of the first positioning circle, R2 is the radius of the second positioning circle, alpha is the included angle between two inclined planes of the V-shaped groove on the adjustable V-shaped block and the fixed V-shaped block, N is the number of turns of the adjusting screw rod needing to rotate, and P is the screw pitch of the adjusting screw rod; loosening the locking screw according to the calculation result, rotating the N circles of adjusting screws to adjust the height of the adjustable V-shaped block, and tightening the locking screw;
s4, measuring the straightness F 'of the upper end of the part to be machined adjusted in the step S3, and if the straightness F' is less than or equal to 0.02, leveling the machining fixing device; if F' is more than 0.02, fine adjustment is carried out on an adjusting screw at the lower end of the adjustable V-shaped block until the straightness of the part to be processed meets the requirement;
and S5, downwards rotating the first spiral pressure lever and the second spiral pressure lever, fixing the part to be processed on the adjusted adjustable V-shaped block and the fixed V-shaped block, upwards rotating the first spiral pressure lever and the second spiral pressure lever after the processing is finished, and taking down the processed shaft part.
Further, in step S1, the angle between the V-shaped groove of the adjustable V-shaped block and the V-shaped groove of the fixed V-shaped block is 90 °, and correspondingly, the calculation in step S3Is given by the formula
N＝H/P。
Further, the parts of the same batch are processed, in step S2, before the first positioning circle and the second positioning circle are selected on the parts to be processed, the parts to be processed are placed on the adjustable supporting component and the fixed supporting component, so that the designated step of the parts to be processed is abutted against the inner side surface of the adjustable supporting component or the fixed supporting component, and the positions where the parts to be processed are connected with the inclined surfaces of the V-shaped grooves of the adjustable V-shaped block and the fixed V-shaped block are selected as the first positioning circle and the second positioning circle, so as to facilitate axial positioning of the parts of the same batch when being processed.
Further, in step S1, the straightness F of the measuring cylinder standard component is measured by using a dial indicator.
The invention has the beneficial effects that:
1. the shaft part processing and fixing device provided by the invention can realize continuous adjustment of the height of the adjustable V-shaped block through the adjusting screw rod, further realize stepless leveling of the shaft part, overcome the defect of discontinuous cushion block adjustment of the existing combined clamp, and has the advantages of higher adjusting precision and more convenience in use.
2. In the debugging method provided by the invention, the proper first positioning circle and the proper second positioning circle can be selected, various assembling modes can be provided for the same shaft part, the fixation of most shaft parts can be realized, and the universality is high.
Drawings
FIG. 1 is a schematic view of a conventional fixing device for a combination clamp;
the reference numerals in fig. 1 are as follows:
01-bottom plate, 02-V-shaped block, 03-pressing plate and 04-cushion block;
FIG. 2 is a schematic perspective view of an embodiment of a fixing device for processing shaft parts according to the present invention;
FIG. 3 is a front view of an embodiment of the present invention for a machining fixture for shaft parts;
FIG. 4 is a left side view of an embodiment of the fixing device for machining shaft parts according to the present invention;
FIG. 5 is a cross-sectional view of an adjustable support assembly in an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a stationary support assembly in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of the straightness of the upper end of a measuring cylinder standard in an embodiment of the debugging method for the machining fixing device of the shaft parts of the present invention;
FIG. 8 is a schematic view of measuring the straightness of the side end of the cylindrical standard part in the embodiment of the debugging method of the fixing device for processing shaft parts of the present invention;
fig. 9 is a schematic view of height adjustment in an embodiment of the debugging method of the fixing device for processing shaft parts of the present invention.
The reference numerals in fig. 2-9 are as follows:
1-base, 11-long sliding groove, 12-short sliding groove, 2-adjustable supporting component, 21-adjustable V-shaped block, 22-first spiral pressure rod, 23-first pressure plate, 24-first pressure block, 25-first supporting rod, 26-adjusting unit, 261-locking screw, 262-U-shaped frame, 263-cross beam, 264-adjusting screw, 27-first nut, 28-first fixing screw, 3-fixed supporting component, 31-fixed V-shaped block, 32-second spiral pressure rod, 33-second pressure plate, 34-second pressure block, 35-second supporting rod, 36-second nut, 37-second fixing screw, 4-part to be processed, 5-cylindrical standard part and 6-dial indicator.
Detailed Description
In this example, "up" and "down" are directions perpendicular to the base 1, the base 1 is down, and the adjustable V-block 21 and the fixed V-block 31 are up.
Referring to fig. 2 to 6, the present embodiment discloses a processing fixing device for shaft parts, which includes a base 1, and an adjustable supporting component 2 and a fixed supporting component 3 disposed on the base 1;
the adjustable supporting assembly 2 comprises an adjustable V-shaped block 21, a first adjustable pressing unit arranged at the upper end of the adjustable V-shaped block 21 and an adjusting unit 26 arranged at the lower end of the adjustable V-shaped block 21.
Specifically, the first adjustable pressing unit is used for pressing and fixing the part 4 to be processed, and includes a first supporting rod 25 arranged on the upper end surface of the adjustable V-shaped block 21, a first pressing plate 23 rotatably connected with the first supporting rod 25, and a first spiral pressing rod 22, wherein a first internal threaded hole is formed in the first pressing plate 23, a first external thread matched with the first internal threaded hole is formed in the first spiral pressing rod 22, and a first pressing block 24 is arranged at one end of the first spiral pressing rod 22 close to the adjustable V-shaped block 21.
The adjusting unit 26 comprises a U-shaped frame 262, a cross beam 263 arranged in the U-shaped frame 262, an adjusting screw 264 and a locking screw 261, wherein the cross beam 263 is provided with a threaded through hole, the adjusting screw 264 passes through the threaded through hole from the lower end of the cross beam 263 and then abuts against the lower end surface of the adjustable V-shaped block 21, specifically, the lower end of the adjustable V-shaped block 21 is provided with a blind hole, and the adjusting screw 264 passes through the threaded through hole from the lower end of the cross beam 263 and then is inserted into the blind hole; the locking screw 261 penetrates through the outer side face of the U-shaped frame 262, can be abutted against the side face of the adjustable V-shaped block 21 and is used for locking and fixing the adjustable V-shaped block 21 after being adjusted to a proper position; the lower end of the U-shaped frame 262 is fixed to the base 1 by a first fixing screw 28 and a first nut 27.
The fixed supporting component 3 comprises a fixed V-shaped block 31 and a second adjustable pressing unit arranged on the fixed V-shaped block 31; specifically, the fixing V-shaped block 31 is fixed on the base 1 by a second fixing screw 37 and a second nut 36; the second adjustable pressing unit is used for pressing and fixing the part 4 to be processed and comprises a second supporting rod 35 arranged on the upper end face of the fixed V-shaped block 31, a second pressing plate 33 rotatably connected with the second supporting rod 35 and a second spiral pressing rod 32, a second internal threaded hole is formed in the second pressing plate 33, a second external thread matched with the second internal threaded hole is formed in the second spiral pressing rod 32, and a second pressing block 34 is arranged at one end, close to the fixed V-shaped block 31, of the second spiral pressing rod 32.
The included angle of the two inclined planes of the V-shaped groove of the adjustable V-shaped block 21 and the fixed V-shaped block 31 ranges from 60 degrees to 120 degrees; preferably, the included angle of the two inclined surfaces of the V-shaped groove ranges from 90 degrees.
The base 1 is provided with a plurality of sliding grooves, and the end caps of the fixing screws are matched with the sliding grooves and used for realizing the free sliding of the end caps of the fixing screws in the sliding grooves; the sliding grooves comprise a plurality of long sliding grooves 11 parallel to the extending direction of the part 4 to be processed and a plurality of short sliding grooves 12 which are vertical to the extending direction of the part 4 to be processed and are crossed with the long sliding grooves 11; when the part 4 to be processed is horizontally adjusted, the device can be suitable for parts with various lengths by the sliding of the adjustable supporting component 2 and the fixed supporting component 3 in the long sliding groove 11; the adjustable supporting component 2 and the fixed supporting component 3 can be switched between different long sliding grooves 11 at the intersection of the sliding groove 12 and the long sliding groove 11, and are suitable for parts with different radial lengths.
The debugging method of the processing and fixing device for the shaft parts comprises the following steps:
s1, installing a processing fixing device, installing the cylindrical standard component 5 between the adjustable V-shaped block 21 and the fixed V-shaped block 31, and screwing the locking screw 261 of the adjusting unit 26; measuring the straightness F of the cylindrical standard component 5 by using a dial indicator 6, specifically, when the dial indicator 6 is used for measuring the straightness of the cylindrical standard component 5, respectively carrying out straightness detection on the upper end and the side end of the cylindrical standard component 5 along the extension direction of the cylindrical standard component 5, and measuring to obtain the straightness F1 of the upper end of the cylindrical standard component 5 and the straightness F2 of the side end of the cylindrical standard component 5, wherein if F1 is less than or equal to 0.02 and F2 is less than or equal to 0.02, the processing and fixing device is leveled; if F1 is more than 0.02, fine adjustment is carried out on the adjusting screw rod 264 at the lower end of the adjustable V-shaped block 21; if F2 is more than 0.02, fine adjustment is carried out on the bottom plate 1; until the straightness of the cylindrical standard 5 is satisfactory, see fig. 7 and 8.
S2, taking down the cylindrical standard part 5, selecting a first positioning circle and a second positioning circle on the part to be processed, and measuring the diameters of the first positioning circle and the second positioning circle respectively; moving the adjustable support component 2 and the fixed support component 3 which are leveled in the step S1 to proper positions, enabling the first positioning circle to be abutted against the adjustable V-shaped block 21, and enabling the second positioning circle to be abutted against the fixed V-shaped block 31; specifically, if the diameters of the two positioning circles are the same, the adjustable supporting component 2 and the fixed supporting component 3 which are leveled in the step S1 are moved to appropriate positions, and the parts to be machined are arranged on the adjustable supporting component 2 and the fixed supporting component 3; if the diameters of the two positioning circles are different, the positioning circle with the larger diameter is abutted to the fixed V-shaped block 31, the positioning circle with the smaller diameter is abutted to the adjustable V-shaped block 21, the adjusting screw 264 needs to be screwed upwards during adjustment to enable the adjustable V-shaped block 21 to move upwards, the design length of the adjusting screw 264 can be shortened by the method for placing the part to be processed, and the structure of the processing and fixing device is more compact.
When parts in the same batch are machined, the parts 4 to be machined are placed on the adjustable supporting component 2 and the fixed supporting component 3, the designated steps of the parts 4 to be machined are abutted against the inner side faces of the adjustable supporting component 2 or the fixed supporting component 3, and the positions of the parts 4 to be machined, which are connected with the inclined faces of the V-shaped grooves of the adjustable V-shaped block 21 and the fixed V-shaped block 31, are selected as a first positioning circle and a second positioning circle, so that the parts in the same batch can be axially positioned when machined.
S3, see FIG. 9, according to the formula
And a formula N is H/P, the number of turns of the adjusting screw rod 264 needing to rotate is calculated, wherein H is the height needing to be adjusted, R1 is the radius of the positioning circle with a smaller diameter, R2 is the radius of the positioning circle with a larger diameter, alpha is an included angle between two inclined planes of the V-shaped groove on the adjustable V-shaped block 21 and the fixed V-shaped block 31, N is the number of turns of the adjusting screw rod 264 needing to rotate, and P is the screw pitch of the adjusting screw rod 264; according to the calculation result, the locking screw 261 is unscrewed, the N-ring adjusting screw 264 is rotated to adjust the height of the adjustable V-shaped block 21, the locking screw 261 is screwed down, the connecting line of the centers of the two positioning circles is horizontal, and the axis of the part is in a horizontal state at the moment;
s4, measuring the straightness F 'of the upper end of the part 4 to be machined adjusted in the step S3, and if the straightness F' is less than or equal to 0.02, leveling the machining fixing device; if F' is more than 0.02, fine adjustment is carried out on the adjusting screw rod 264 at the lower end of the adjustable V-shaped block 21 until the straightness of the part 4 to be processed meets the requirement; for the same batch of parts to be machined, only the measurement of the straightness F' of the first part to be machined 4 is required.
In this embodiment, the angle between the V-shaped groove of the adjustable V-shaped block 21 and the V-shaped groove of the fixed V-shaped block 31 is 90 °, that is, α is 90 °
N＝H/P。
S5, rotating the first spiral compression bar 22 and the second spiral compression bar 32 downwards, fixing the parts to be processed on the adjusted adjustable V-shaped block 21 and the fixed V-shaped block 31, rotating the first spiral compression bar 22 and the second spiral compression bar 32 upwards after the processing is finished, and taking down the processed shaft parts.
The processing fixing device for the shaft parts in the embodiment is subjected to field debugging and verification, the debugging time is within 30min, and compared with the traditional combined clamp assembly which needs about 4-5 hours for debugging, the efficiency is improved by 8-9 times after the processing fixing device provided by the embodiment is used.
Claims (9)
1. The utility model provides a processing fixing device for axle type part which characterized in that: comprises a base (1), an adjustable supporting component (2) and a fixed supporting component (3) which are arranged on the base (1);
the adjustable supporting component (2) comprises an adjustable V-shaped block (21), a first adjustable pressing unit arranged at the upper end of the adjustable V-shaped block (21) and an adjusting unit (26) arranged at the lower end of the adjustable V-shaped block (21);
the fixed supporting assembly (3) comprises a fixed V-shaped block (31) and a second adjustable pressing unit arranged on the fixed V-shaped block (31);
the first adjustable pressing unit and the second adjustable pressing unit are used for pressing and fixing a part (4) to be processed;
the adjusting unit (26) comprises a U-shaped frame (262), a cross beam (263) arranged in the U-shaped frame (262), an adjusting screw rod (264) and a locking screw (261), the cross beam (263) is provided with a threaded through hole, and the adjusting screw rod (264) passes through the threaded through hole from the lower end of the cross beam (263) and then abuts against the lower end of the adjustable V-shaped block (21);
the locking screw (261) penetrates through the outer side face of the U-shaped frame (262), can be abutted against the side face of the adjustable V-shaped block (21), and is used for locking and fixing the adjustable V-shaped block (21) after being adjusted to a proper position.
2. The machining fixing device for the shaft parts as claimed in claim 1, wherein:
the first adjustable pressing unit comprises a first supporting rod (25) arranged on the upper end face of the adjustable V-shaped block (21), a first pressing plate (23) rotatably connected with the first supporting rod (25) and a first spiral pressing rod (22), a first internal threaded hole is formed in the first pressing plate (23), a first external thread matched with the first internal threaded hole is formed in the first spiral pressing rod (22), and a first pressing block (24) is arranged at one end, close to the adjustable V-shaped block (21), of the first spiral pressing rod (22);
the second adjustable pressing unit comprises a second supporting rod (35) arranged on the upper end face of the fixed V-shaped block (31), a second pressing plate (33) rotatably connected with the second supporting rod (35) and a second spiral pressing rod (32), a second internal thread hole is formed in the second pressing plate (33), a second external thread matched with the second internal thread hole is arranged on the second spiral pressing rod (32), and a second pressing block (34) is arranged at one end, close to the fixed V-shaped block (31), of the second spiral pressing rod (32).
3. The machining fixing device for the shaft parts as claimed in claim 2, wherein:
the lower end of the adjustable V-shaped block (21) is provided with a blind hole, and the adjusting screw rod (264) penetrates through the threaded through hole from the lower end of the cross beam (263) and then is inserted into the blind hole.
4. A machining fixture for shaft parts as claimed in claim 1, 2 or 3, wherein:
the included angle of the two inclined surfaces of the V-shaped groove of the adjustable V-shaped block (21) and the V-shaped groove of the fixed V-shaped block (31) ranges from 60 degrees to 120 degrees.
5. The processing and fixing device for the shaft parts as claimed in claim 4, wherein:
the adjustable supporting component (2) and the fixed supporting component (3) are fixedly connected with the base (1) through a fixing screw and a nut,
the base (1) is provided with a plurality of sliding grooves, and the end caps of the fixing screws are matched with the sliding grooves and used for realizing the free sliding of the end caps of the fixing screws in the sliding grooves;
the sliding grooves comprise a plurality of long sliding grooves (11) parallel to the extending direction of the part (4) to be processed and a plurality of short sliding grooves (12) which are perpendicular to the extending direction of the part (4) to be processed and are intersected with the long sliding grooves (11).
6. A debugging method for a machining fixing device of shaft parts as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
s1, installing a processing fixing device, installing a cylindrical standard part (5) between the adjustable V-shaped block (21) and the fixed V-shaped block (31), and screwing a locking screw (261); respectively carrying out straightness detection on the upper end and the side end of the cylindrical standard component (5) along the extension direction of the cylindrical standard component (5), measuring to obtain the straightness F1 of the upper end of the cylindrical standard component (5) and the straightness F2 of the side end of the cylindrical standard component (5), and if F1 is less than or equal to 0.02 and F2 is less than or equal to 0.02, leveling the processing and fixing device; if F1 is greater than 0.02, fine adjustment is carried out on an adjusting screw rod (264) at the lower end of the adjustable V-shaped block (21); if F2 is greater than 0.02, fine adjustment is carried out on the bottom plate (1); until the straightness of the cylindrical standard part (5) meets the requirement;
s2, taking down the cylindrical standard part (5), selecting a first positioning circle and a second positioning circle on the part (4) to be processed, and measuring the diameters of the first positioning circle and the second positioning circle respectively; moving the adjustable support component (2) and the fixed support component (3) which are leveled in the step S1 to proper positions, enabling the first positioning circle to be abutted against the adjustable V-shaped block (21), and enabling the second positioning circle to be abutted against the fixed V-shaped block (31);
s3, according to the formula
And a formula N is H/P, the number of turns of the adjusting screw rod (264) needing to rotate is calculated, wherein H is the height needing to be adjusted, R1 is the radius of the first positioning circle, R2 is the radius of the second positioning circle, alpha is the included angle between two inclined planes of the V-shaped groove on the adjustable V-shaped block (21) and the fixed V-shaped block (31), N is the number of turns of the adjusting screw rod (264) needing to rotate, and P is the screw pitch of the adjusting screw rod (264); according to the calculation result, the locking screw (261) is unscrewed, the height of the adjustable V-shaped block (21) is adjusted by rotating the N-ring adjusting screw (264), and the locking screw (261) is screwed down)；
S4, measuring the straightness F 'of the upper end of the part (4) to be processed after being adjusted in the step S3, and if the F' is less than or equal to 0.02, leveling the processing and fixing device; if F' is more than 0.02, fine adjustment is carried out on an adjusting screw rod (264) at the lower end of the adjustable V-shaped block (21) until the straightness of the part (4) to be processed meets the requirement;
s5, rotating the first spiral compression bar (22) and the second spiral compression bar (32) downwards, fixing the part (4) to be processed on the adjusted adjustable V-shaped block (21) and the fixed V-shaped block (31), rotating the first spiral compression bar (22) and the second spiral compression bar (32) upwards after processing is finished, and taking down the processed shaft part.
7. The debugging method for the machining fixing device for the shaft parts as claimed in claim 6, wherein:
in the step S1, the included angle between the adjustable V-shaped block (21) and the V-shaped groove of the fixed V-shaped block (31) is 90 degrees, and correspondingly, the calculation formula in the step S3 is
N＝H/P。
8. The debugging method for the machining fixing device for the shaft parts as claimed in claim 6 or 7, wherein:
when parts in the same batch are processed, in step S2, before a first positioning circle and a second positioning circle are selected on the parts (4) to be processed, the parts (4) to be processed are placed on the adjustable supporting component (2) and the fixed supporting component (3), so that the designated steps of the parts (4) to be processed are abutted against the inner side surfaces of the adjustable supporting component (2) or the fixed supporting component (3), and positions where the parts (4) to be processed are connected with the V-shaped groove inclined surfaces of the adjustable V-shaped block (21) and the fixed V-shaped block (31) are selected as the first positioning circle and the second positioning circle, so as to facilitate axial positioning of the parts in the same batch during processing.
9. The debugging method for the machining fixing device for the shaft parts as claimed in claim 8, wherein:
in step S1, the straightness F of the measuring cylindrical standard component (5) is measured by using a dial indicator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210301530.4A CN114571388A (en) | 2022-03-24 | 2022-03-24 | Machining fixing device for shaft parts and debugging method of machining fixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118463878A (en) * | 2024-07-11 | 2024-08-09 | 四川航天职业技术学院(四川航天高级技工学校) | Multifunctional combined clamp for three-coordinate inspection |
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| US20160031053A1 (en) * | 2014-07-31 | 2016-02-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Rotor v-block fixture and method |
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| CN118463878A (en) * | 2024-07-11 | 2024-08-09 | 四川航天职业技术学院(四川航天高级技工学校) | Multifunctional combined clamp for three-coordinate inspection |
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