CN114102212A - Combined clamp for milling end of crank and bent rod and drilling central hole - Google Patents
Combined clamp for milling end of crank and bent rod and drilling central hole Download PDFInfo
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- CN114102212A CN114102212A CN202111582402.3A CN202111582402A CN114102212A CN 114102212 A CN114102212 A CN 114102212A CN 202111582402 A CN202111582402 A CN 202111582402A CN 114102212 A CN114102212 A CN 114102212A
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- 238000003801 milling Methods 0.000 title claims abstract description 31
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 238000007667 floating Methods 0.000 claims abstract description 67
- 238000003825 pressing Methods 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 210000003127 knee Anatomy 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
In order to solve the problems of long processing time, unstable processing quality, serious production waste and the like existing in the crank and bent rod end milling and center hole drilling processing method in the prior art, the invention provides a combined clamp for crank and bent rod end milling and center hole drilling, which comprises a bottom plate, a crank disk part clamping mechanism and a bent rod positioning clamping mechanism; the bottom plate is rectangular, and a crank disc part clamping mechanism and a curved rod positioning clamping mechanism are respectively arranged on the bottom plate; the crank disc part clamping mechanism comprises a base plate, a V-shaped positioning block, a positioning column and a pressing clamping assembly; the crank rod positioning and clamping mechanism and the crank disk part clamping mechanism are fixedly arranged on the bottom plate in parallel and comprise a door-shaped base, a floating seat, a floating spring, a locking cylinder and a crank rod clamping assembly. The crank rod end milling machine has the beneficial technical effects of simple structure and convenience in use, and can ensure the quality of the end milling and the center hole drilling of the crank rod.
Description
Technical Field
The invention relates to a technology for milling and machining an end of a crank rod and a central hole drill, in particular to a combined clamp for milling and machining an end of a crank rod and a central hole drill.
Background
The crank is a main part of engine transmission torque, and is usually processed into a crank forging by free die forging, and then the crank forging is mechanically processed. Due to the adoption of the free die forging process, the size precision of the crank forging piece is low, and no datum line or datum plane is required for machining (see figure 1, wherein A is a curved rod, B is a crank disc part, and C is a central hole). Therefore, before machining the crank forging, central holes need to be machined in the end of the crank disc part and the end of the curved rod to form a datum line; and milling the end of the curved bar to form a datum plane.
In the prior art, the end of the crank and the curved rod are milled by adopting a traditional machine tool and a traditional clamp, and then the center holes of the end of the crank disk part and the end of the curved rod are respectively drilled on the machine tool. The processing method has the advantages of long processing time, multiple working procedures and unstable processing size, and greatly influences the processing quality and the processing efficiency. Meanwhile, the number of unqualified parts is large, and the production waste is serious.
Obviously, the method for milling the end of the crank rod and drilling the central hole in the prior art has the problems of long processing time, unstable processing quality, serious production waste and the like.
Disclosure of Invention
The invention provides a combined clamp for milling ends of crank levers and drilling center holes, aiming at solving the problems of long processing time, unstable processing quality, serious production waste and the like existing in the method for milling the ends of the crank levers and drilling center holes in the prior art.
The invention relates to a combined clamp for milling the end of a crank rod and drilling a central hole, which comprises a bottom plate, a crank disk part clamping mechanism and a crank rod positioning and clamping mechanism, wherein the bottom plate is provided with a crank disk part; the bottom plate is rectangular, and a crank disc part clamping mechanism and a curved rod positioning clamping mechanism are respectively arranged on the bottom plate; the crank disc part clamping mechanism comprises a base plate, a V-shaped positioning block, a positioning column and a pressing clamping assembly; the substrate is a rectangular plate and is vertically fixed on the bottom plate; the V-shaped positioning and fixing device is fixedly arranged at the middle lower part of the inner side surface of the base plate, the perpendicular bisector of the V-shaped positioning and fixing device is the perpendicular bisector of the base plate, and the size of the V-shaped surface of the V-shaped positioning and fixing device is matched with the crank disc part; the positioning columns are three and are fixedly arranged on the substrate on the inner side of the V-shaped surface at intervals in a semicircular arc shape; the two groups of pressure-applying clamping assemblies are symmetrically arranged on two sides of the V-shaped positioning block and comprise pressure rods, hinge seats, connecting rods, hinge joints and pressure-applying cylinders; the pressing rod is in a strip shape, a pressing foot is arranged at the front end of the pressing rod, a connecting rod is hinged to the middle of the pressing rod, and a hinge joint is hinged to the rear end of the pressing rod; the hinge base is arranged on the base plate outside the V-shaped positioning block; the connecting rod is in a strip shape, one end of the connecting rod is hinged with the middle part of the pressure rod, and the other end of the connecting rod is hinged with the hinge seat; the hinged joint is fixedly connected to the end head of the piston of the pressure cylinder and is hinged with the rear end of the pressure rod; the pressure cylinder is arranged on the back of the substrate, and a piston of the pressure cylinder penetrates through the substrate and is fixedly connected with the hinge joint; the crank rod positioning and clamping mechanism and the crank disk part clamping mechanism are fixedly arranged on the bottom plate in parallel and comprise a door-shaped base, a floating seat, a floating spring, a locking cylinder and a crank rod clamping assembly; the door-shaped base is fixedly arranged on the bottom plate, and a floating trapezoidal groove is formed in the surface of the cross beam of the door-shaped base; the floating seat is arranged in a floating trapezoidal groove of the door-shaped base in a sliding manner, a boss is arranged in the middle of the floating seat, and a clamping trapezoidal groove is arranged on the surface of the boss; the floating springs are four, one group of two springs are respectively arranged at two end heads of the floating seat, one end of each spring abuts against the end head of the floating seat, and the other end of each spring abuts against the inner side of the baffle plate at the end head of the door-shaped base; the two locking cylinders are respectively arranged on two sides of the boss of the floating seat and can lock the floating seat and the door-shaped base into a whole; the curved rod clamping assembly is a self-centering clamping mechanism and is arranged in the middle of the floating seat, and comprises a clamping head, a clamping connecting rod, a clamping seat and a clamping cylinder; the clamping head is provided with two clamping ends which are oppositely arranged in the clamping trapezoidal grooves at the two ends of the floating seat, and the center of the bottom of the clamping head is provided with a hinge hole seat; the clamping device comprises a clamping seat, a clamping head, two clamping connecting rods and a clamping base, wherein the clamping seat is provided with a plurality of parallel hinge holes; the clamping seat is fixed at the end of the piston of the clamping cylinder; and the clamping cylinder is fixedly arranged at the bottom of the door-shaped base.
Furthermore, the curved rod clamping assembly is an air cylinder clamping mechanism and is arranged in the middle of the floating seat, and comprises a clamping head II, a clamping seat II and a clamping air cylinder II; the two clamping heads II are arranged, and the clamping ends are oppositely arranged in the clamping trapezoidal grooves at the two ends of the floating seat; the two clamping seats II are respectively fixed on the outer sides of the clamping heads at the two ends of the floating seat; and the two clamping cylinders II are respectively fixed on the outer sides of the clamping seats at the two ends of the floating seat, and the end heads of the cylinder pistons of the two clamping cylinders penetrate through the clamping seats and are connected with the rear ends of the clamping heads.
Furthermore, a self-adaptive support assembly is further arranged on the front side of the floating seat at the curved rod clamping position of the curved rod positioning and clamping mechanism; the self-adaptive support assembly comprises a support plate, a torsion spring and a fixing bolt; the supporting plate is of an L-shaped sheet metal structure, and a fixing hole is formed in the root of the L shape; the fixing bolt penetrates through the fixing hole of the supporting plate and is rotatably fixed at the clamping position of the curved rod at the floating front side; the torsional spring is arranged at the fixing bolt and drives the supporting plate to rotate anticlockwise.
The combined clamp for milling the end of the crank rod and drilling the central hole has the advantages of simple structure and convenience in use, and can ensure the quality of milling the end of the crank rod and drilling the central hole.
Drawings
FIG. 1 is a schematic structural view of a crank;
FIG. 2 is a schematic structural view of a combined clamp for milling the end of a crank rod and drilling a central hole of the crank rod;
FIG. 3 is a schematic structural view of a crank disc portion clamping mechanism of the present invention;
FIG. 4 is a schematic structural view of a knee lever positioning and clamping mechanism of the present invention;
FIG. 5 is a schematic structural view of the self-centering clamping mechanism of the present invention;
FIG. 6 is a schematic view of a crank clamped by the combined clamp for milling the end of the crank and drilling the central hole of the crank;
fig. 7 is a schematic structural view of the cylinder clamping mechanism of the present invention.
The combined clamp for milling the crank rod end and drilling the central hole is further described with reference to the accompanying drawings and the detailed description.
Detailed Description
Fig. 2 is a schematic structural diagram of a combined clamp for milling the end of a crank rod and drilling a central hole, fig. 3 is a schematic structural diagram of a clamping mechanism of a crank disk, and fig. 4 is a schematic structural diagram of a positioning and clamping mechanism of a crank rod. FIG. 5 is a schematic structural view of a self-centering clamping assembly of the present invention, and FIG. 6 is a schematic structural view of a clamping crank of a combined clamp for milling the end of a crank crankshaft and drilling a central hole of the present invention; in the figure, 1 is a bottom plate, 2 is a crank disk portion clamping mechanism, 201 is a base plate, 202 is a V-shaped positioning block, 203 is a positioning column, 204 is a pressure rod surface, 205 is a hinged seat, 205 is a connecting rod, 207 is a hinged joint, 208 is a pressing air cylinder, 3 is a crank rod positioning clamping mechanism, 301 is a door-shaped base, 302 is a floating seat, 303 is a clamping head, 304 is a clamping connecting rod, 305 is a clamping seat, 306 is a clamping air cylinder, 307 is a floating spring, 308 is a locking air cylinder, 309 is a supporting plate, 310 is a torsion spring, 311 is a fixing bolt, A is a crank rod, B is a crank disk portion, and D is a center hole drill bit. The combined clamp for milling the end of the crank and the curved rod and drilling the central hole comprises a bottom plate 1, a crank disc part clamping mechanism 2 and a curved rod positioning clamping mechanism 3; the bottom plate 1 is rectangular, and a crank disc part clamping mechanism 2 and a curved rod positioning clamping mechanism 3 are respectively arranged on the bottom plate; the crank disc part clamping mechanism 2 comprises a base plate 201, a V-shaped positioning block 202, a positioning column 203 and a pressing clamping assembly; the substrate 201 is a rectangular plate and is vertically fixed on the bottom plate; the V-shaped positioning 202 is fixedly arranged at the middle lower part of the inner side surface of the base plate, the perpendicular bisector of the V-shape is the perpendicular bisector of the base plate, and the size of the V-shaped surface of the V-shaped positioning 202 is matched with that of the crank disc part; three positioning columns 203 are fixedly arranged on the substrate on the inner side of the V-shaped surface at intervals in a semicircular arc shape; the two groups of pressing clamping components are symmetrically arranged on two sides of the V-shaped positioning block and comprise a pressing rod 204, a hinge seat 205, a connecting rod 206, a hinge joint 207 and a pressing cylinder 208; the pressing rod 204 is in a strip shape, a pressing foot is arranged at the front end of the pressing rod, a connecting rod is hinged to the middle of the pressing rod, and a hinge head is hinged to the rear end of the pressing rod; the hinge base 205 is arranged on the base plate outside the V-shaped positioning block; the connecting rod 206 is in a strip shape, one end of the connecting rod is hinged with the middle part of the pressure rod, and the other end of the connecting rod is hinged with the hinge seat; the hinged joint 207 is fixedly connected to the end of the piston of the pressure cylinder and is hinged with the rear end of the pressure rod; the pressure cylinder 208 is arranged on the back of the base plate, and a piston of the pressure cylinder penetrates through the base plate and is fixedly connected with the hinge joint; the crank rod positioning and clamping mechanism 3 and the crank disk part clamping mechanism 2 are fixedly arranged on the bottom plate 1 in parallel and comprise a door-shaped base 301, a floating seat 302, a floating spring 307, a locking cylinder 308 and a crank rod clamping assembly; the door-shaped base 301 is fixedly arranged on the bottom plate, and a floating trapezoidal groove is formed in the surface of a cross beam of the door-shaped base; the floating seat 302 is arranged in a floating trapezoidal groove of the door-shaped base in a sliding manner, a boss is arranged in the middle of the floating seat, and a clamping trapezoidal groove is arranged on the surface of the boss; the floating springs 307 are four, one group of two springs are respectively arranged at two end heads of the floating seat, one end of each spring abuts against the end head of the floating seat, and the other end of each spring abuts against the inner side of the baffle plate at the end head of the door-shaped base; the two locking cylinders 308 are respectively arranged at two sides of the boss of the floating seat and can lock the floating seat and the door-shaped base into a whole; the curved rod clamping assembly is a self-centering clamping mechanism and is arranged in the middle of the floating seat, and comprises a clamping head 303, a clamping connecting rod 304, a clamping seat 305 and a clamping cylinder 306; the two clamping heads 303 are respectively arranged at two ends of the floating seat clamping dovetail groove in a sliding manner, and a hinge hole seat is arranged at the center of the bottom of each clamping head; the two clamping connecting rods 304 are respectively hinged at one end to the bottom of the clamping head and at the other end to two parallel hinge holes on the clamping seat; the clamping seat 305 is fixed at the end of a piston of a clamping cylinder; the clamping cylinder 306 is fixedly mounted at the bottom of the gate-shaped base. When the crank disc part is used, the crank disc part is placed on the V-shaped positioning block, and the axis of the crank disc part is close to the V-shaped perpendicular bisector from the moving direction due to the V-shaped structure, namely, the center is automatically found. When placing, the end face of the crank disk part is placed on the lower semicircle, so that the end face of the crank disk part is contacted with the positioning column to form axial positioning of the crank disk part. And the pressing cylinder is opened, the piston pushes the pressing rod to move upwards, and meanwhile, the pressing foot at the front end of the pressing rod is pressed against the end surface of the inner side of the crank disc part to press and clamp the crank disc part. And (4) starting the clamping cylinder, and moving the clamping heads in opposite directions to clamp the bent rod. It should be noted that the knee lever clamping assembly adopts a self-centering clamping mechanism without a fixed transverse center, and in the clamping process, the clamping center can be automatically adjusted left and right until the knee lever is clamped on the floating seat. The condition that the unilateral clamping head is pressed too early due to overlarge dimensional tolerance of the crank forging is avoided. At this time, if the crankshaft axis center is not coincident with the clamping center, the floating seat can be adjusted in the left-right direction. After the crank rod is completely clamped by the clamping cylinder, the locking cylinder is opened, and the floating seat and the door-shaped base are locked into a whole by the locking cylinder, so that the crank is completely fixed. According to the fixing process of the crank, the combined clamp for milling the end of the crank rod and drilling the central hole fixes the crank on the combined clamp under the condition that the size and the position error of a crank forging are considered as much as possible. The problem that inaccurate positioning or pressure applying interference is caused due to overlarge size and position errors of the crank forging is solved, and the fixed position of the crank is inaccurate or is not fixed and fastened is solved. It should be further noted that the combined clamp for milling the end of the crank rod and drilling the central hole fixes the crank under the condition of ensuring that the axis of the crank disk part and the axis of the crank rod are coincident as much as possible, thereby creating good conditions for milling the end of the crank rod and drilling the central hole on the end surface of the crank disk part and the end surface of the crank rod, and greatly ensuring the processing quality. In addition, the combined clamp for milling the end of the crank rod and drilling the central hole combines the milling of the end surface of the crank rod, the drilling of the central hole of the end surface of the crank rod and the drilling of the central hole of the end surface of the crank disk part, and finishes three processes by one-time clamping, thereby effectively improving the working efficiency.
Fig. 7 is a schematic structural diagram of the cylinder clamping mechanism of the present invention, in which 301 is a door-shaped base, 302 is a floating seat, 307 is a floating spring, 308 is a dead-lock cylinder, 309 is a supporting plate, 310 is a torsion spring, 311 is a fixing bolt, 312 is a clamping head ii, 313 is a clamping seat ii, and 314 is a clamping cylinder ii. As can be seen, in order to simplify the structure and reduce the manufacturing cost, the crank clamping assembly is a cylinder clamping mechanism and is arranged in the middle of the floating seat, and comprises a clamping head ii 312, a clamping seat ii 313 and a clamping cylinder ii 314; the two clamping heads II 312 are provided, and the clamping ends are oppositely arranged in the clamping trapezoidal grooves at the two ends of the floating seat; the two clamping seats II 313 are respectively fixed on the outer sides of the clamping heads at the two ends of the floating seat; and the two clamping cylinders II 314 are respectively fixed on the outer sides of the clamping seats at the two ends of the floating seat, and the ends of the cylinder pistons of the two clamping cylinders penetrate through the clamping seats to be connected with the rear ends of the clamping heads. The clamping mechanism is simple in structure and low in manufacturing cost. When the tolerance of the crank forging is overlarge, the clamping requirement can be met through the transverse movement of the floating seat.
In addition, in order to prevent the clamping instability or product deformation caused by the unilateral stress during the clamping of the curved bar, a self-adaptive support component is further arranged on the front side of the floating seat at the curved bar clamping position of the curved bar positioning and clamping mechanism (see fig. 4 and 7, wherein 309 is a support plate, 310 is a torsion spring, and 311 is a fixing bolt); the self-adaptive support assembly comprises a support plate 309, a torsion spring 310 and a fixing bolt 311; the supporting plate 309 is of an L-shaped sheet metal structure, and a fixing hole is formed in the root of the L shape; the fixing bolt 311 passes through the fixing hole of the support plate and is rotatably fixed at the clamping position of the curved rod at the floating front side; the torsion spring 310 is disposed at the fixing bolt to drive the support plate to rotate counterclockwise. In the curved bar clamping process, the curved bar one end is placed in the self-adaptation supporting component backup pad, because the upper and lower position of backup pad relies on the torsional spring drive, consequently, can be along with the luffing motion self-adaptation ground adjustment backup pad of clamping process curved bar tip the height, satisfy the wobbling demand of curved bar tip, and the hard phenomenon of supporting can not appear firmly.
Obviously, the combined clamp for milling the end of the crank rod and drilling the central hole has the advantages of simple structure and convenience in use, and can ensure the quality of milling the end of the crank rod and drilling the central hole.
Claims (3)
1. A combined clamp for milling ends of crank levers and drilling central holes is characterized by comprising a bottom plate, a crank disc part clamping mechanism and a crank lever positioning and clamping mechanism; the bottom plate is rectangular, and a crank disc part clamping mechanism and a curved rod positioning clamping mechanism are respectively arranged on the bottom plate; the crank disc part clamping mechanism comprises a base plate, a V-shaped positioning block, a positioning column and a pressing clamping assembly; the substrate is a rectangular plate and is vertically fixed on the bottom plate; the V-shaped positioning and fixing device is fixedly arranged at the middle lower part of the inner side surface of the base plate, the perpendicular bisector of the V-shaped positioning and fixing device is the perpendicular bisector of the base plate, and the size of the V-shaped surface of the V-shaped positioning and fixing device is matched with the crank disc part; the positioning columns are three and are fixedly arranged on the substrate on the inner side of the V-shaped surface at intervals in a semicircular arc shape; the two groups of pressure-applying clamping assemblies are symmetrically arranged on two sides of the V-shaped positioning block and comprise pressure rods, hinge seats, connecting rods, hinge joints and pressure-applying cylinders; the pressing rod is in a strip shape, a pressing foot is arranged at the front end of the pressing rod, a connecting rod is hinged to the middle of the pressing rod, and a hinge joint is hinged to the rear end of the pressing rod; the hinge base is arranged on the base plate outside the V-shaped positioning block; the connecting rod is in a strip shape, one end of the connecting rod is hinged with the middle part of the pressure rod, and the other end of the connecting rod is hinged with the hinge seat; the hinged joint is fixedly connected to the end head of the piston of the pressure cylinder and is hinged with the rear end of the pressure rod; the pressure cylinder is arranged on the back of the substrate, and a piston of the pressure cylinder penetrates through the substrate and is fixedly connected with the hinge joint; the crank rod positioning and clamping mechanism and the crank disk part clamping mechanism are fixedly arranged on the bottom plate in parallel and comprise a door-shaped base, a floating seat, a floating spring, a locking cylinder and a crank rod clamping assembly; the door-shaped base is fixedly arranged on the bottom plate, and a floating trapezoidal groove is formed in the surface of the cross beam of the door-shaped base; the floating seat is arranged in a floating trapezoidal groove of the door-shaped base in a sliding manner, a boss is arranged in the middle of the floating seat, and a clamping trapezoidal groove is arranged on the surface of the boss; the floating springs are four, one group of two springs are respectively arranged at two end heads of the floating seat, one end of each spring abuts against the end head of the floating seat, and the other end of each spring abuts against the inner side of the baffle plate at the end head of the door-shaped base; the two locking cylinders are respectively arranged on two sides of the boss of the floating seat and can lock the floating seat and the door-shaped base into a whole; the curved rod clamping assembly is a self-centering clamping mechanism and is arranged in the middle of the floating seat, and comprises a clamping head, a clamping connecting rod, a clamping seat and a clamping cylinder; the clamping head is provided with two clamping ends which are oppositely arranged in the clamping trapezoidal grooves at the two ends of the floating seat, and the center of the bottom of the clamping head is provided with a hinge hole seat; the clamping device comprises a clamping seat, a clamping head, two clamping connecting rods and a clamping base, wherein the clamping seat is provided with a plurality of parallel hinge holes; the clamping seat is fixed at the end of the piston of the clamping cylinder; and the clamping cylinder is fixedly arranged at the bottom of the door-shaped base.
2. The combined clamp for milling the end of the crank and the crank rod and drilling the central hole according to claim 1, wherein the crank rod clamping assembly is a cylinder clamping mechanism and is arranged in the middle of a floating seat, and comprises a clamping head II, a clamping seat II and a clamping cylinder II; the two clamping heads II are arranged, and the clamping ends are oppositely arranged in the clamping trapezoidal grooves at the two ends of the floating seat; the two clamping seats II are respectively fixed on the outer sides of the clamping heads at the two ends of the floating seat; and the two clamping cylinders II are respectively fixed on the outer sides of the clamping seats at the two ends of the floating seat, and the end heads of the cylinder pistons of the two clamping cylinders penetrate through the clamping seats and are connected with the rear ends of the clamping heads.
3. The combined clamp for milling the end of the crank and the curved rod and drilling the central hole according to claim 1 or 2, wherein a self-adaptive support assembly is further arranged on the front side of the floating seat at the curved rod clamping position of the curved rod positioning and clamping mechanism; the self-adaptive support assembly comprises a support plate, a torsion spring and a fixing bolt; the supporting plate is of an L-shaped sheet metal structure, and a fixing hole is formed in the root of the L shape; the fixing bolt penetrates through the fixing hole of the supporting plate and is rotatably fixed at the clamping position of the curved rod at the floating front side; the torsional spring is arranged at the fixing bolt and drives the supporting plate to rotate anticlockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582402.3A CN114102212A (en) | 2021-12-22 | 2021-12-22 | Combined clamp for milling end of crank and bent rod and drilling central hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582402.3A CN114102212A (en) | 2021-12-22 | 2021-12-22 | Combined clamp for milling end of crank and bent rod and drilling central hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114102212A true CN114102212A (en) | 2022-03-01 |
Family
ID=80361957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111582402.3A Pending CN114102212A (en) | 2021-12-22 | 2021-12-22 | Combined clamp for milling end of crank and bent rod and drilling central hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114102212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871506A (en) * | 2022-06-02 | 2022-08-09 | 重庆歇马机械曲轴有限公司 | Automatic cleaning device for burrs of crank oil duct |
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| CN216398868U (en) * | 2021-12-22 | 2022-04-29 | 重庆歇马机械曲轴有限公司 | Combined clamp for milling end of crank and bent rod and drilling central hole |
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2021
- 2021-12-22 CN CN202111582402.3A patent/CN114102212A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040150149A1 (en) * | 2003-01-31 | 2004-08-05 | Smc Corporation | Electric clamping device |
| CN204353847U (en) * | 2014-12-25 | 2015-05-27 | 重庆顺多利机车有限责任公司 | Bent axle right case inclined oil hole of air bores clamp for machining |
| CN209007155U (en) * | 2018-11-23 | 2019-06-21 | 重庆艾格润数控机床有限公司 | A kind of clamping device for motorcycle crank machining tool |
| CN110280814A (en) * | 2019-07-15 | 2019-09-27 | 德州德隆(集团)机床有限责任公司 | A kind of crankshaft milling makes machining center |
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| CN114871506B (en) * | 2022-06-02 | 2024-02-09 | 重庆歇马机械曲轴有限公司 | Automatic cleaning device for burrs of crank oil duct |
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