CN109514109B - Flexible clamping device and flexible clamping method for ceramic core - Google Patents
Flexible clamping device and flexible clamping method for ceramic core Download PDFInfo
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- CN109514109B CN109514109B CN201811624467.8A CN201811624467A CN109514109B CN 109514109 B CN109514109 B CN 109514109B CN 201811624467 A CN201811624467 A CN 201811624467A CN 109514109 B CN109514109 B CN 109514109B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 12
- 230000008439 repair process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a ceramic core flexible clamping device and a flexible clamping method, wherein the device comprises a lower clamping device and a taper shank seat arranged on the lower clamping device, a taper shank is sleeved in the taper shank seat, an elbow clamping assembly, a taper shank cutter pad and a core positioning pin are arranged on the upper surface of the taper shank, and a taper shank upper cover is covered on the taper shank; the top of the taper shank is provided with an upper clamping device; the upper end of the ceramic core is locked through the upper clamping device, and the lower end of the ceramic core is restrained and positioned through the elbow clamp assembly, the taper shank cutter pad block and the core positioning pin, so that the flexible clamping of the ceramic core is realized. The adjustable link ensures the flexibility of ceramic core assembly and avoids the damage and breakage of the ceramic core caused by improper stress in the clamping process; the degree of freedom of the ceramic core in all directions is restrained, and the repeatability precision of the core is ensured; the coaxiality and the axial matching precision of the whole assembly are ensured, and the taper shank seat are prevented from loosening in the movement process.
Description
Technical Field
The invention belongs to the technical field of flexible clamping, and particularly relates to a ceramic core flexible clamping device and a flexible clamping method.
Background
The ceramic core is mainly applied to aeroengine blades and belongs to high-precision complex parts. Because gaps exist between blank core dies after compression molding, the edges of the blank core have the characteristics of flashing, salient points and the like with different shapes, and meanwhile, the positions where openings are formed possibly are filled with ceramic oxide due to the fact that the gaps are large, so that the openings are blocked, and the problems all need to be repaired secondarily. The existing manual repair has high operation level requirement on process personnel, and is easy to cause core collapse and blank scrapping. At present, most of the ceramic mold is repaired by laser processing, but the molded ceramic mold core needs to be clamped quickly in the repairing process, and the clamping force of the clamping mechanism is controlled strictly, so that the ceramic mold core is prevented from being cracked in the clamping process or the mold core is prevented from loosening due to too small clamping force. Therefore, aiming at the ceramic core laser repair process, the development of the ceramic core flexible clamping device is particularly important.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the flexible clamping device and the flexible clamping method for the ceramic core, which can conveniently repair the molded ceramic core by laser and have strong structural universality.
The invention is realized by the following technical scheme.
The ceramic core flexible clamping device comprises a lower clamping device and a taper shank seat arranged on the lower clamping device, wherein a taper shank is sleeved in the taper shank seat, an elbow clamp assembly, a taper shank cutter pad and a core positioning pin are arranged on the upper surface of the taper shank, and a taper shank upper cover is covered on the taper shank; the top of the taper shank is provided with an upper clamping device; the upper end of the ceramic core is locked through the upper clamping device, and the lower end of the ceramic core is restrained and positioned through the elbow clamp assembly, the taper shank cutter pad block and the core positioning pin, so that the flexible clamping of the ceramic core is realized.
For the above technical solution, the present invention is further preferred:
further, the upper clamping device comprises an upper clamping upright post, a lateral locking ring and an upper clamping bottom plate, wherein the lateral locking ring and the upper clamping bottom plate are respectively sleeved at the top of the upper clamping upright post; the upper clamping bottom plate is connected with an upper clamping plate, torsion springs positioned by positioning pins are arranged in slots of the upper clamping bottom plate and the upper clamping plate, and a lower pressing block connected through knurled nuts is arranged at the end part of the upper clamping plate; a top end cushion block is arranged at the end part of the lateral locking ring; the top cushion block is abutted against the side surface of the ceramic core, and the lower pressing block is abutted against the groove at the top of the ceramic core, so that the flexible clamping of the upper part of the ceramic core is realized.
Further, the elbow clamp assembly comprises an elbow clamp seat fixed on the upper surface of the taper shank, an elbow clamp cap is arranged on one side of the elbow clamp seat, a metal fitting at the front end of the elbow clamp is screwed in the elbow clamp cap, and an adjusting nut is arranged on the metal fitting at the front end of the elbow clamp; the jacking pin is connected to the elbow clamping seat in a sliding manner and is connected with a pin connecting rod, and the pin connecting rod is connected with an elbow clamping wrench with a crank arm structure through a locating pin and a special-shaped clamp spring.
Further, a taper shank cutter pad block fixed on the upper surface of the taper shank is arranged between the pin holes of the elbow clamp seat, and a core positioning pin corresponding to the end face of the metal fitting at the front end of the elbow clamp is arranged on the taper shank cutter pad block; the front taper shank adjacent to the taper shank cutter pad is provided with a side taper shank cutter pad.
Further, a 1# die steel cushion block is arranged on the side taper shank cushion block on the same side as the core positioning pin, a pair of 2# die steel cushion blocks are arranged on the taper shank cushion block, and clamping of the bottom of the ceramic core is achieved through the elbow clamp front end metal fitting, the core positioning pin, the pair of 2# die steel cushion blocks and the 1# die steel cushion block.
Further, the lower clamping device comprises a bottom fixing seat, a quick clamping pressure ring is sleeved on the outer wall between the bottom fixing seat and the taper shank seat, the quick clamping pressure ring is connected with a quick clamping locking sleeve of an inner cavity of the bottom fixing seat, and the quick clamping locking sleeve is connected with a quick locking sleeve of a quick clamping mandrel; the quick clamping mandrel is internally provided with a blind rivet which is connected below the taper shank through threads, and the quick clamping mandrel is fixed on the bottom fixing seat through threads.
Further, the top of the bottom fixing seat is fixed with the taper shank seat through a screw and is locked through a quick clamping pressing ring; the bottom fixing seat is provided with a rear cover.
Further, a quick clamping spring is sleeved on the quick clamping mandrel.
Further, the upper part of the quick clamping mandrel is provided with a circular groove, uniformly distributed steel balls are arranged in the groove, and the steel balls are limited through a clamping ring.
The invention further provides a ceramic core flexible clamping method of the device, which comprises the following steps:
step 1, a quick clamping press ring of a taper shank seat outer sleeve is pressed down, a taper shank and a fixedly connected blind rivet are put into a taper surface of the taper shank seat together, and the blind rivet is locked by loosening the quick clamping press ring and self-resetting by means of balls and a quick clamping spring;
step 2, pulling open the elbow clamp wrench of the elbow clamp assembly, at the moment, moving the elbow clamp cap backwards along with the elbow clamp, aligning the middle slotted hole of the ceramic core with the positioning pin leaning reference surface of the core, pressing the bottom surface of the core on the die steel cushion block, leaning the rear side surface on the 2# die steel cushion block, withdrawing the elbow clamp wrench, and tightly pressing the front end surface of the ceramic core by the elbow clamp cap, thereby ensuring all the restraint of each degree of freedom;
step 3, moving a top cushion block of the upper clamping device to lean against the side surface of the ceramic core, leaning against a lower pressing block in a groove at the top of the ceramic core, applying slight pressing force, and locking a knurled nut on the upper clamping bottom plate;
step 4, when a new ceramic core needs to be replaced, loosening the knurled nut on the upper clamping bottom plate, and loosening the elbow clamping wrench, so that the ceramic core can be taken down; when the taper shank needs to be replaced, the quick clamping compression ring is pressed downwards, and the taper shank can be taken down for replacement.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the invention ensures the flexibility of the ceramic core assembly through the upper clamping device, the spring, the torsion spring and the adjustable link in the elbow clamping assembly, and avoids the damage and the breakage of the ceramic core caused by improper stress in the clamping process.
2. The invention restrains the freedom degrees of all directions of the die steel cushion block 10, the die steel cushion block 1 and the core positioning pin 12 by adjusting the die steel cushion block and ensures the repeatability precision of the core.
3. According to the invention, through the conical surface matching of the taper shank and the taper shank seat, the coaxiality and the axial matching precision of the whole assembly are ensured, and the circumferential positioning precision of the taper shank seat is ensured through the shaft shoulder on the taper shank seat.
4. The invention ensures that the taper shank is tightly attached to the taper shank seat by the lower clamping device, and ensures that the taper shank and the taper shank seat cannot loosen in the movement process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate and do not limit the invention, and together with the description serve to explain the principle of the invention:
FIG. 1 is a schematic diagram of the overall structure of a ceramic core flexible clamping device of the invention;
FIG. 2 is a schematic diagram of the internal structure of the flexible clamping device for the ceramic core;
FIG. 3 is a schematic view of the upper clamping device of the present invention;
FIG. 4 is a schematic view of an elbow clip assembly according to the present invention;
FIG. 5 is a schematic view of the installation of the upper clamping device and toggle clamp assembly of the present invention;
FIG. 6 is a schematic view of the internal structure of the lower clamping device of the present invention.
In the figure: 1-upper clamping means; 2-a taper shank cutter pad block; 3-taper shank; 4-taper shank base; 5-a lower clamping device; 6, a taper shank upper cover; 7-an elbow clip assembly; 8-ceramic cores; 9-a cutter pad of the side taper shank; 10-1# die steel cushion block; 11-2# die steel cushion block; 12-core locating pins; 13-upper clamping posts; 14-a lateral locking ring; 45-upper clamping base plate; 16-torsion spring; 17-upper clamping locating pins; 18-upper clamping plate; 19-pressing down the block; 20-top pad block; 21-blind rivet; 22-quick clamping press ring; 23-a collar; 24-a bottom fixing seat; 25-a rear cover; 26-quick clamp spring; 27-rapidly clamping the mandrel; 28-quick lock sleeve; 29-quick clamp locking sleeve; 30-rapidly clamping the compression ring; 31-elbow clip front end fitting; 32-1# locating pin; 33-pin links; 34-2# locating pin; 35-3# locating pin; 36-elbow clamp wrench; 37-elbow holder; 38-pushing up the pin; 39-adjusting the nut; 40-elbow clip cap.
Detailed Description
The present invention will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the exemplary embodiments and descriptions of the present invention are provided for illustration of the invention and are not intended to be limiting.
As shown in fig. 1 and 2, the flexible clamping device for the ceramic core of the invention comprises: the taper shank clamping device comprises an upper clamping device 1, a taper shank cutter pad 2, a taper shank 3, a taper shank seat 4, a lower clamping device 5, a taper shank upper cover 6, an elbow clamp assembly 7, a ceramic core 8, a side taper shank cutter pad 9, a No. 1 die steel cushion block 10, a No. 2 die steel cushion block 11 and a core positioning pin 12; the lower clamping device 5 is provided with a taper shank seat 4, a taper shank 3 is sleeved in the taper shank seat 4, the upper surface of the taper shank 3 is provided with an elbow clamp assembly 7, a taper shank cutter pad block 2 and a core positioning pin 12, and the taper shank 3 is covered with a taper shank upper cover 6; the top of the taper shank 3 is provided with an upper clamping device 1; the upper end of the ceramic core 8 is locked through the upper clamping device 1, and the lower end of the ceramic core 8 is restrained and positioned through the elbow clamp assembly 7, the taper shank cutter pad block 2 and the core positioning pin 12, so that the flexible clamping of the ceramic core is realized.
As shown in fig. 3, the upper clamping device 1 is screwed in a threaded hole of the taper shank 3, and the upper clamping device 1 comprises an upper clamping upright post 13, a lateral locking ring 14 respectively sleeved on the top of the upper clamping upright post 13 and an upper clamping bottom plate 15; the upper clamping bottom plate 15 is connected with an upper clamping plate 18, torsion springs 16 positioned by positioning pins 2 are arranged in slotted holes of the upper clamping bottom plate 15 and the upper clamping plate 18, and a lower pressing block 19 connected through knurled nuts is arranged at the end part of the upper clamping plate 18; a top end spacer 20 is provided at the end of the lateral locking ring 14.
The upper clamping upright post 13 is fixed with the top of the taper shank 3, the lateral locking ring 14 is fixed with the upper clamping upright post 13 through jackscrews, the top end cushion block 20 is guaranteed to lean against the ceramic core through circumferential adjustment, the upper clamping bottom plate 15 is tightly pressed through top knurled nuts, the torsion spring 16 is arranged in slotted holes of the upper clamping bottom plate 15 and the upper clamping plate 18 and sleeved on the upper clamping positioning pin 17, the lower pressing block 19 is tightly pressed through the top knurled nuts, the upper clamping plate 18 is slightly tightly pressed against the ceramic core through stirring, a horizontal downward force and a vertical downward force are applied to the ceramic core 8 through a cone at the bottom of the lower pressing block 19, the top end cushion block 20 is screwed into the lateral locking ring 14 and tightly pressed through the knurled nuts, and the ceramic core is tightly pressed from the rear part. The top cushion block 20 is abutted against the side surface of the ceramic core 8, and the lower pressing block 19 is abutted against the groove at the top of the ceramic core 8, so that the upper part of the ceramic core 8 is flexibly held. The upper clamping means clamps the ceramic core 8 from the top, avoiding breakage due to the weaker top.
As shown in fig. 4, the elbow clamp assembly 7 comprises an elbow clamp seat 37 fixed on the upper surface of the taper shank 3, one side of the elbow clamp seat 37 is provided with an elbow clamp cap 40, the elbow clamp cap 40 is internally screwed with an elbow clamp front end metal fitting 31 through threads, and an adjusting nut 39 is arranged on the elbow clamp front end metal fitting 31; the propping pin 38 is connected to the elbow clamping seat 37 in a sliding manner through the 1# locating pin 32 and is connected with a pin connecting rod 33, the pin connecting rod 33 is connected with an elbow clamping wrench 36 of a crank arm structure through the 2# locating pin 34 and is fixed through a special-shaped clamp spring, the elbow clamping wrench 36 is connected with the elbow clamping seat 37 through the 3# locating pin 35 and is fixed through the special-shaped clamp spring, and the propping pin 38 penetrates through a round hole in the elbow clamping seat 37, so that the ceramic core 8 is ensured to be tightly pressed and not loosened by integrally utilizing the four-connecting rod and dead point working principle.
As shown in fig. 5, a taper shank cutter pad 2 fixed on the upper surface of a taper shank 3 is arranged between pin holes of an elbow clamp seat 37, and a core positioning pin 12 corresponding to the end surface of a metal fitting 31 at the front end of the elbow clamp is arranged on the taper shank cutter pad 2; a side taper shank cutter pad 9 is arranged on the front taper shank 3 adjacent to the taper shank cutter pad 2. The side taper shank cutter pad 9 on the same side as the core positioning pin 12 is provided with a No. 1 die steel cushion block 10, the taper shank cutter pad 2 is provided with a pair of No. 2 die steel cushion blocks 11, and the clamping of the bottom of the ceramic core 8 is realized through the elbow clamp front end metal fitting 31, the core positioning pin 12, the pair of No. 2 die steel cushion blocks 11 and the No. 1 die steel cushion block 10.
The taper shank cutter pad block 2 is fixed on the upper part of the taper shank 3, the left and right 2# die steel cushion blocks 11 are laterally locked on the taper shank cutter pad block 2 through pins, the front and rear sides of the taper shank cutter pad block are positioned, the core positioning pin 12 is fixed on the taper shank cutter pad block 2 through screws, the left and right directions of the taper shank are positioned, and the taper shank 3 and the taper shank seat 4 guarantee the positioning accuracy through conical surface matching. The bottom of the taper shank 3 is tensioned through the lower clamping device 5, so that the taper shank is tightly matched with the taper shank seat 4. The upper cover 6 of the taper shank is fixed with the upper part of the taper shank 3 through screws, and the internal structure of the elbow clamp assembly is protected. The elbow clamp assembly 7 is fixed on the taper shank 3, the ceramic core 8 is pressed at the front end, the side taper shank cutter pad 9 is fixed at the top of the taper shank 3, and the No. 1 die steel cushion block 10 is fastened on the side taper shank cutter pad 9 through a side jackscrew lock to position the side taper shank cutter pad in the up-down direction.
As shown in fig. 6, the lower clamping device 5 includes: the bottom fixing seat 24, the quick clamping pressure ring 30 is sleeved on the outer wall between the bottom fixing seat 24 and the taper shank seat 4, the quick clamping pressure ring 30 is connected with a quick clamping locking sleeve 29 in the inner cavity of the bottom fixing seat 24, and the quick clamping locking sleeve 29 is connected with a quick locking sleeve 28 on the quick clamping mandrel 27 in a connecting mode; in the quick clamp mandrel 27 is provided a BT40 blind rivet 21 attached below the shank 3, the BT40 blind rivet 21 being screwed onto the shank 3. The quick clamp spindle 27 is threadably secured to the bottom anchor block 24. The top of the bottom fixing seat 24 is fixed with the taper shank seat 4 through a screw and is locked through the quick clamping pressing ring 22. The quick clamp press 22 is capable of adjusting the height of the quick clamp mandrel 27. The quick clamping mandrel 27 is sleeved with a quick clamping spring 26. The bottom fixing base 24 is provided with a rear cover 25.
The quick locking sleeve 28 is sleeved on the quick clamping mandrel 27, uniformly distributed steel balls are arranged in a circular groove on the quick clamping mandrel 27, the steel balls are limited by the clamping ring 23, the quick clamping spring 26 and the steel balls are prevented from falling off, the BT40 blind rivet 21 is clamped by the balls, the quick clamping spring 26 is prevented from locking and loosening, the rear cover 25 is screwed into the bottom of the bottom fixing seat 24, and dust and foreign matters are prevented from entering the lower clamping device. The quick clamp locking sleeve 29 is secured to the quick clamp sleeve 28 and the quick clamp press ring 30, respectively.
The flexible clamping method for the ceramic core of the device comprises the following steps:
step 1, a quick clamping ring 30 sleeved outside a taper shank seat 4 is pressed down, a taper shank 3 and a fixedly connected BT40 blind rivet 21 are put into a taper surface of the taper shank seat 4 together, and the blind rivet 21 is locked by loosening the quick clamping ring 30 and self-resetting by means of balls and a quick clamping spring;
step 2, the elbow clamp spanner 36 of the elbow clamp assembly 7 is pulled open, at the moment, the elbow clamp cap 40 moves backwards along with the elbow clamp, the middle slotted hole of the ceramic core 8 is aligned with the leaning reference surface of the core positioning pin 12, the bottom surface of the core is pressed on the No. 1 die steel cushion block 10, the rear side surface of the core is leaned against the No. 2 die steel cushion block 11, the elbow clamp spanner 36 is retracted, the elbow clamp cap 40 compresses the front end surface of the ceramic core 8, and all constraint of all degrees of freedom are ensured;
step 3, the top cushion block 20 of the upper clamping device 1 is moved to be abutted against the side surface of the ceramic core 8, the lower pressing block 19 is abutted against the groove at the top of the ceramic core 8, and a slight pressing force is applied to lock the knurled nut on the upper clamping bottom plate 15;
step 4, when a new ceramic core needs to be replaced, loosening the knurled nuts on the upper clamping bottom plate 15, and loosening the elbow clamping wrench 36, so that the ceramic core 8 can be removed; when the taper shank 3 needs to be replaced, the taper shank can be removed and replaced by pressing the quick clamping pressure ring 30 downwards.
The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.
Claims (7)
1. The ceramic core flexible clamping device is characterized by comprising a lower clamping device (5) and a taper shank seat (4) arranged on the lower clamping device (5), wherein a taper shank (3) is sleeved in the taper shank seat (4), an elbow clamping assembly (7), a taper shank cutter pad (2) and a core positioning pin (12) are arranged on the upper surface of the taper shank (3), and a taper shank upper cover (6) is covered on the taper shank (3); an upper clamping device (1) is arranged at the top of the taper shank (3); the upper end of the ceramic core (8) is locked through the upper clamping device (1), and the lower end of the ceramic core (8) is restrained and positioned through the elbow clamp assembly (7), the taper shank cutter pad block (2) and the core positioning pin (12), so that the ceramic core is flexibly clamped;
the upper clamping device (1) comprises an upper clamping upright post (13), a lateral locking ring (14) respectively sleeved at the top of the upper clamping upright post (13) and an upper clamping bottom plate (15); the upper clamping bottom plate (15) is connected with an upper clamping plate (18), torsion springs (16) positioned by core positioning pins (12) are arranged in slots of the upper clamping bottom plate (15) and the upper clamping plate (18), and a lower pressing block (19) connected through knurled nuts is arranged at the end part of the upper clamping plate (18); a top end cushion block (20) is arranged at the end part of the lateral locking ring (14); the top cushion block (20) is abutted against the side surface of the ceramic core (8), and the lower pressing block (19) is abutted against the groove at the top of the ceramic core (8), so that the upper part of the ceramic core (8) is flexibly held;
the elbow clamp assembly (7) comprises an elbow clamp seat (37) fixed on the upper surface of the taper shank (3), an elbow clamp cap (40) is arranged on one side of the elbow clamp seat (37), an elbow clamp front end metal fitting (31) is screwed in the elbow clamp cap (40), and an adjusting nut (39) is arranged on the elbow clamp front end metal fitting (31); the jacking pin (38) is connected to the elbow clamping seat (37) in a sliding manner and is connected with a pin connecting rod (33), and the pin connecting rod (33) is connected with an elbow clamping wrench (36) with a crank arm structure through a core positioning pin and a special-shaped clamp spring;
the lower clamping device (5) comprises a bottom fixing seat (24), a quick clamping press ring (30) is sleeved on the outer wall between the bottom fixing seat (24) and the taper shank seat (4), the quick clamping press ring (30) is connected with a quick clamping locking sleeve (29) of an inner cavity of the bottom fixing seat (24), and a quick locking sleeve (28) of the quick clamping mandrel (27) is connected with the quick clamping locking sleeve (29); a blind rivet (21) which is connected below the taper shank (3) through threads is arranged in the quick clamping mandrel (27), and the quick clamping mandrel (27) is fixed on the bottom fixing seat (24) through threads.
2. The flexible clamping device for the ceramic core according to claim 1, wherein a taper shank cutter pad (2) fixed on the upper surface of the taper shank (3) is arranged between pin holes of the elbow clamp seat (37), and a core positioning pin (12) opposite to the end face of a metal fitting (31) at the front end of the elbow clamp is arranged on the taper shank cutter pad (2); a side taper shank cutter pad block (9) is arranged on the front taper shank (3) adjacent to the taper shank cutter pad block (2).
3. The flexible clamping device for the ceramic core according to claim 2, wherein a 1# die steel cushion block (10) is arranged on a side taper shank cushion block (9) on the same side as the core positioning pin (12), a pair of 2# die steel cushion blocks (11) are arranged on the taper shank cushion block (2), and clamping of the bottom of the ceramic core (8) is achieved through an elbow clamp front end metal fitting (31), the core positioning pin (12), the pair of 2# die steel cushion blocks (11) and the 1# die steel cushion block (10).
4. The flexible clamping device for the ceramic core according to claim 1, wherein the top of the bottom fixing seat (24) is fixed with the taper shank seat (4) through a screw and is locked through a quick clamping pressing ring (22); the bottom fixing seat (24) is provided with a rear cover (25).
5. A flexible clamping device for ceramic cores according to claim 1, characterized in that said quick clamping mandrel (27) is sleeved with a quick clamping spring (26).
6. The flexible clamping device for the ceramic core according to claim 1, wherein a circular groove is formed in the upper portion of the quick clamping mandrel (27), uniformly distributed steel balls are arranged in the groove, and the steel balls are limited through a clamping ring (23).
7. A method of flexibly clamping a ceramic core according to any one of claims 1 to 6, comprising the steps of:
step 1, a quick clamping press ring (30) sleeved on a taper shank seat (4) is pressed down, a taper shank (3) and a fixedly connected blind rivet (21) are put into a conical surface of the taper shank seat (4) together, and the blind rivet (21) is locked by loosening the quick clamping press ring (30) and self-resetting by means of a ball and a quick clamping spring;
step 2, pulling open an elbow clamp spanner (36) of the elbow clamp assembly (7), at the moment, moving an elbow clamp cap (40) backwards along with the elbow clamp, aligning a middle slotted hole of the ceramic core (8) with a core positioning pin (12) to a leaning reference surface, pressing the bottom surface of the core on a die steel cushion block (10), leaning the rear side surface on a No. 2 die steel cushion block (11), retracting the elbow clamp spanner (36), and tightly pressing the front end surface of the ceramic core (8) by the elbow clamp cap (40), so as to ensure all constraint of all degrees of freedom;
step 3, a top end cushion block (20) of the upper clamping device (1) is moved to be abutted against the side surface of the ceramic core (8), a lower pressing block (19) is abutted against a groove at the top of the ceramic core (8), and a slight pressing force is applied to lock a knurled nut on the upper clamping bottom plate (15);
step 4, when a new ceramic core needs to be replaced, loosening the knurled nut on the upper clamping bottom plate (15), and loosening the elbow clamping spanner (36), so that the ceramic core (8) can be removed; when the taper shank (3) needs to be replaced, the quick clamping pressure ring (30) is pressed downwards, and the taper shank can be removed and replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624467.8A CN109514109B (en) | 2018-12-28 | 2018-12-28 | Flexible clamping device and flexible clamping method for ceramic core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624467.8A CN109514109B (en) | 2018-12-28 | 2018-12-28 | Flexible clamping device and flexible clamping method for ceramic core |
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| Publication Number | Publication Date |
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| CN109514109A CN109514109A (en) | 2019-03-26 |
| CN109514109B true CN109514109B (en) | 2024-02-20 |
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| CN104985370A (en) * | 2015-06-19 | 2015-10-21 | 湖南湖大艾盛汽车技术开发有限公司 | Flexible automobile body welding and clamping platform |
| CN106563880A (en) * | 2016-10-21 | 2017-04-19 | 华中科技大学 | Multi-light source, multi-function and multi-axis laser processing head and apparatus |
| CN209407706U (en) * | 2018-12-28 | 2019-09-20 | 西安中科光电精密工程有限公司 | A kind of ceramic core flexible clamping device |
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2018
- 2018-12-28 CN CN201811624467.8A patent/CN109514109B/en active Active
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| JP2002192433A (en) * | 2000-12-26 | 2002-07-10 | Seiwa Seiki Kk | Pull stud mounting device |
| CN102114568A (en) * | 2009-12-31 | 2011-07-06 | 南京理工大学 | Stud flexible welding device and method |
| CN104985370A (en) * | 2015-06-19 | 2015-10-21 | 湖南湖大艾盛汽车技术开发有限公司 | Flexible automobile body welding and clamping platform |
| CN106563880A (en) * | 2016-10-21 | 2017-04-19 | 华中科技大学 | Multi-light source, multi-function and multi-axis laser processing head and apparatus |
| CN209407706U (en) * | 2018-12-28 | 2019-09-20 | 西安中科光电精密工程有限公司 | A kind of ceramic core flexible clamping device |
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