CN117161495A - Clamping tool for electric spark cutting of crankshaft - Google Patents
Clamping tool for electric spark cutting of crankshaft Download PDFInfo
- Publication number
- CN117161495A CN117161495A CN202311128975.8A CN202311128975A CN117161495A CN 117161495 A CN117161495 A CN 117161495A CN 202311128975 A CN202311128975 A CN 202311128975A CN 117161495 A CN117161495 A CN 117161495A
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- China
- Prior art keywords
- crankshaft
- base
- electric spark
- spring chuck
- gear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000005520 cutting process Methods 0.000 title claims abstract description 29
- 238000010892 electric spark Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000009760 electrical discharge machining Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
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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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- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a clamping tool for an electric spark cutting crankshaft, which relates to the field of engine crankshaft machining equipment, and comprises the following components: the crankshaft clamping device comprises a base, a connecting rod, a V-shaped block, a locking mechanism, a positioning rod, a spring chuck positioning gear, a driving gear and a height adjusting and positioning device, wherein the height adjusting and positioning device enables a crankshaft to be more stable in clamping, fully limits the degree of freedom, solves the problems that the crankshaft cannot be positioned and is underpositioned, prevents the problems of crankshaft deviation and the like caused in the machining process, and improves the safety coefficient and quality; the locking mechanism can assist in supporting the crankshaft in the machining process, after machining is completed, the workpiece can be clamped, the workpiece is prevented from falling, and through reasonable design of the overall structure of the lifting structure and the tool, linear cutting can be directly machined in one-time programming, so that time is saved, and efficiency is improved.
Description
Technical Field
The invention relates to the field of engine crankshaft machining equipment, in particular to a clamping tool for spark cutting of a crankshaft.
Background
The crankshaft is the most important component of the engine, and it takes the forces from the connecting rod and converts it into torque output and drives other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending torsion load. In the trial manufacturing process of the crankshaft, the crankshaft is required to be subjected to a bending fatigue test and metallographic structure analysis before and after heat treatment, and the existing processing method is mainly realized by cutting and sectioning the crankshaft through linear cutting. At present, no special tool is used for clamping the linear cutting crankshaft, and the conventional method is as follows: two flat plates capable of moving in the Y direction are placed on a main body workbench for online cutting, the distance between the two flat plates is adjusted to form a proper gap, and the outer contour of a crank arm is utilized to support and fix the flat plates.
1. The outer end of a crank arm of the crank is a blank surface and a rough machining surface, and the flatness of the cut section cannot be ensured by taking the blank surface and the rough machining surface as the reference;
2. the machining method belongs to underpositioning, does not accord with the positioning principle of mechanical machining, has insufficient limited freedom degree, is easy to cause the falling off and the deviation of a crankshaft, and causes certain potential safety hazard;
3. the mass of the bent axle part that drops after the cutting is accomplished is great, when carrying out free falling body motion, smashes easily and hurts the workstation, and great impact force probably causes the bent axle to take place to warp, causes certain error to follow-up experimental result.
Disclosure of Invention
Aiming at the problems in the prior art, the invention designs the clamping tool for the electric spark cutting crankshaft, the crankshaft is more stable in clamping and the degree of freedom is fully limited by the height adjusting and positioning device, and after the machining is finished, the workpiece can be clamped by the locking mechanism, so that the workpiece is prevented from falling off, the time is saved, and the efficiency is improved.
The technical scheme adopted for realizing the invention is as follows: a clamping frock for spark-erosion cutting bent axle, it includes: base 1, V type piece 3, characterized by, it still includes: connecting rod 2, locking mechanism 5, locating lever 6, high regulation positioner 9 set up the dovetail groove on the 1 upper surface of base set up the dovetail groove respectively on the 1 left and right sides of base the 3 lower part of V type piece sets up trapezoidal piece connecting rod 2 one end sets up trapezoidal piece, with two the same V type piece 3 set up respectively on 1 upper portion of base, the trapezoidal piece of V type piece 3 is connected with the dovetail groove cooperation of 1 upper surface of base, two the same V type piece 3 between set up high regulation positioner 9, high regulation positioner 9 can dismantle with base 1 and be connected, trapezoidal piece and the dovetail groove cooperation of 1 sides of base of connecting rod 2 be connected, connecting rod 2 and locking mechanism 5 pass through locating lever 6 and be connected, locking mechanism 5 set up two the same V type piece 3 between.
Further, it also includes: the spring chuck positioning gear 7, driving gear 8 and V type piece 3 swing joint set up the handle on the driving gear 8 outside, driving gear 8 and spring chuck positioning gear 7 meshing be connected, driving gear 8 and spring chuck positioning gear 7 pass through the center rest and are connected the inboard of spring chuck positioning gear 7 sets up the spring chuck, spring chuck positioning gear 7 and the center coincidence of spring chuck.
Further, the locking mechanism 5 is a handcuff.
Further, the base 1 is made of HT200.
Further, the V-shaped block 3 is made of No. 45 steel.
Further, the connecting rod 2 is made of Q235.
Further, the height adjusting and positioning device 9 is a screw lifter.
Further, the spiral lifter comprises a worm gear, a box body, a bearing and a screw rod.
The clamping tool for the electric spark cutting crankshaft has the beneficial effects that:
1. the clamping tool for the electric spark cutting crankshaft is characterized in that the height adjusting and positioning device enables the crankshaft to be more stable in clamping, fully limits the degree of freedom, enables the degree of freedom to be in accordance with the mechanical positioning and clamping principle, solves the problems that the crankshaft cannot be positioned and is underpositioned, prevents the problems of crankshaft deflection and the like caused in the machining process, and improves the safety coefficient and quality;
2. a clamping frock for spark-erosion cutting bent axle, locking mechanism can carry out auxiliary stay to the bent axle in the course of working, after processing is accomplished, can grasp the work piece, prevents that it from dropping, through the rational design to lifting structure and frock's overall structure, can make wire-electrode cutting carry out the direct processing completion of one-time programming, save time, raise the efficiency.
Drawings
FIG. 1 is a three-dimensional view of a clamping fixture for spark-cutting crankshafts;
FIG. 2 is a three-dimensional view of a clamping fixture for spark-cutting crankshafts at another angle;
FIG. 3 is an exploded view of a clamping fixture for spark-cutting crankshafts;
in the figure: 1. the device comprises a base, a connecting rod, a 3V-shaped block, a crank shaft, a locking mechanism, a positioning rod, a spring chuck positioning gear, a driving gear and a height adjusting positioning device.
Detailed Description
The present invention will be described in further detail below with reference to fig. 1 to 3 and the detailed description, and for the purpose of making the objects, technical solutions and advantages of the embodiments more clear, the technical solutions in the examples will be clearly and completely described with reference to the drawings in the examples, and the detailed description is only for explaining the present invention and not limiting the scope of the present invention.
As shown in fig. 1 to 3, a clamping tool for spark cutting a crankshaft includes: the device comprises a base 1, a connecting rod 2, V-shaped blocks 3, a locking mechanism 5, a positioning rod 6, a collet positioning gear 7, a driving gear 8 and a height adjusting and positioning device 9, wherein a trapezoid groove is arranged on the upper surface of the base 1, trapezoid grooves are respectively arranged on the left side surface and the right side surface of the base 1, a trapezoid block is arranged at the lower part of the V-shaped blocks 3, a trapezoid block is arranged at one end head of the connecting rod 2, two identical V-shaped blocks 3 are respectively arranged at the upper part of the base 1, the trapezoid blocks of the V-shaped blocks 3 are connected with the trapezoid grooves on the upper surface of the base 1 in a matching way, a height adjusting and positioning device 9 is arranged between the two identical V-shaped blocks 3, the height adjusting and positioning device 9 is detachably connected with the base 1, the trapezoid blocks of the connecting rod 2 are connected with the trapezoid grooves on the side surface of the base 1 in a matching way, the connecting rod 2 and the locking mechanism 5 are connected through a locating rod 6, the locking mechanism 5 is arranged between two identical V-shaped blocks 3, a driving gear 8 is movably connected with the V-shaped blocks 3, a handle is arranged on the outer side of the driving gear 8, the driving gear 8 is meshed with a collet locating gear 7, the driving gear 8 is connected with the collet locating gear 7 through a center frame, a collet is arranged on the inner side of the collet locating gear 7, the collet locating gear 7 is overlapped with the center of the collet, the locking mechanism 5 is handcuffs, a base 1 is made of HT200, the V-shaped blocks 3 are made of 45-number steel, the connecting rod 2 is made of Q235, and the height adjusting locating device 9 is a spiral lifter.
The clamping tool for the electric spark cutting crankshaft comprises the following specific operation steps of:
the base 1 is placed on a workbench for wire-cut electric discharge machining to serve as a support, two shaft heads of the crankshaft 4 are respectively positioned by the V-shaped blocks 3, one shaft head of the crankshaft 4 is clamped by a spring chuck, the handle on the outer side of the driving gear 8 is rocked, the height of a crank part of the crankshaft 4 is adjusted, the crank of the crankshaft 4 is supported and positioned by adjusting the height of the height adjusting and positioning device 9, after the crankshaft 4 is fixed, the position of the connecting rod 2 is adjusted, the height of the positioning rod 6 is positioned, the locking machine 5 locks the shaft diameter of the crankshaft 4, the angle of the connecting rod neck of the crankshaft 4 always faces one direction, and multiple wire adjustment can be reduced.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the invention, which are intended to be comprehended within the scope of the invention.
Claims (8)
1. A clamping frock for spark-erosion cutting bent axle, it includes: base (1), V type piece (3), characterized by, it still includes: connecting rod (2), locking mechanism (5), locating lever (6), high regulation positioner (9) set up the dovetail groove on base (1) upper surface set up the dovetail groove respectively on base (1) left and right sides the trapezoid groove of V type piece (3) lower part sets up the trapezoid block connecting rod (2) one end sets up the trapezoid block, will two the same V type piece (3) set up respectively on base (1) upper portion, the trapezoid block of V type piece (3) is connected with the dovetail groove cooperation of base (1) upper surface, two the same V type piece (3) between set up high regulation positioner (9), high regulation positioner (9) can dismantle with base (1) be connected, the trapezoid groove cooperation of the trapezoid block of connecting rod (2) and base (1) side be connected, connecting rod (2) and locking mechanism (5) pass through locating lever (6) and be connected, locking mechanism (5) set up two the same V type piece (3) between.
2. The clamping fixture for an electric spark cutting crankshaft as set forth in claim 1, further comprising: the spring chuck positioning device comprises a spring chuck positioning gear (7) and a driving gear (8), wherein the driving gear (8) is movably connected with a V-shaped block (3), a handle is arranged on the outer side of the driving gear (8), the driving gear (8) is connected with the spring chuck positioning gear (7) in a meshed mode, the driving gear (8) is connected with the spring chuck positioning gear (7) through a center frame, a spring chuck is arranged on the inner side of the spring chuck positioning gear (7), and the spring chuck positioning gear (7) coincides with the center of the spring chuck.
3. The clamping tool for the electric spark cutting crankshaft according to claim 1, wherein the locking mechanism (5) is a handcuff.
4. The clamping tool for the electric spark cutting of the crankshaft according to claim 1, wherein the base (1) is made of HT200.
5. The clamping tool for the electric spark cutting crankshaft according to claim 1, wherein the V-shaped block (3) is made of 45 # steel.
6. The clamping tool for the electric spark cutting crankshaft according to claim 1, wherein the connecting rod (2) is made of Q235.
7. The clamping tool for the electric spark cutting of the crankshaft according to claim 1, wherein the height adjusting and positioning device (9) is a screw lifter.
8. The clamping tool for the electric spark cutting crankshaft of claim 7, wherein the screw lifter comprises a worm gear, a box body, a bearing and a screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311128975.8A CN117161495A (en) | 2023-09-04 | 2023-09-04 | Clamping tool for electric spark cutting of crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311128975.8A CN117161495A (en) | 2023-09-04 | 2023-09-04 | Clamping tool for electric spark cutting of crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117161495A true CN117161495A (en) | 2023-12-05 |
Family
ID=88931274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311128975.8A Pending CN117161495A (en) | 2023-09-04 | 2023-09-04 | Clamping tool for electric spark cutting of crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117161495A (en) |
-
2023
- 2023-09-04 CN CN202311128975.8A patent/CN117161495A/en active Pending
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