CN220481003U - Axial positioning device of special crankshaft flange hole machining machine - Google Patents
Axial positioning device of special crankshaft flange hole machining machine Download PDFInfo
- Publication number
- CN220481003U CN220481003U CN202321522318.7U CN202321522318U CN220481003U CN 220481003 U CN220481003 U CN 220481003U CN 202321522318 U CN202321522318 U CN 202321522318U CN 220481003 U CN220481003 U CN 220481003U
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- CN
- China
- Prior art keywords
- crankshaft
- axial positioning
- oil cylinder
- swing rod
- positioning device
- Prior art date
- 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.)
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Links
- 238000003754 machining Methods 0.000 title claims abstract description 26
- 239000003921 oil Substances 0.000 claims abstract description 27
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Abstract
The utility model discloses an axial positioning device of a special crankshaft flange hole machining machine, wherein a T-shaped seat is arranged above a base and connected through a screw, a round hole is formed in the T-shaped seat, a double-piston rod oil cylinder is arranged in the round hole of the T-shaped seat through a screw, a pipe joint is arranged at the rear side of the T-shaped seat, and hydraulic oil enters an oil cylinder oil cavity through the pipe joint so as to realize front-back expansion of a hydraulic cylinder; the rear side piston rod of the oil cylinder is provided with a nut, a proximity switch is arranged below the nut, and the proximity switch is connected with the control center; the front side piston rod of the oil cylinder is provided with a single-lug ring which is connected with the rear end of the swing rod, the middle part of the swing rod is connected with a supporting seat in a shaft way, and the supporting seat is fixed on the base; the front end of the swing rod is abutted with the crankshaft; the utility model is used for solving the problems that the manual axial positioning position of the crankshaft on the tool is not in place in the crankshaft machining process of the crankshaft flange hole machining tool, a gap exists between the crankshaft and the positioning block, the axial movement and the like, realizing the automatic axial positioning of the crankshaft, replacing manual operation and improving the working efficiency.
Description
Technical Field
The utility model relates to the field of machining, in particular to a crankshaft axial positioning device.
Background
A special numerical control machine tool for machining a crankshaft flange hole adopts an integral casting oblique lathe bed, and two sets of three-coordinate units and 8-station turret are symmetrically arranged on the lathe bed left and right so as to realize the movement of X, Y, Z in three directions. Further, the crankshafts can be simultaneously processed, and the crankshafts can also be processed separately. The machine tool adopts three-axis linkage of the two ends X, Y, Z to finish the efficient machining of drilling, expanding, hinging, boring and tapping of holes at the two ends of the crankshaft, and the crankshaft on the tool is required to be manually pushed to the position of the positioning block before machining of the machine tool, so that the axial reference positioning of the crankshaft is realized, the machining size of the machine tool is accurate, but because part of types of crankshafts are heavier and manual, the crankshafts cannot be tightly abutted to the positioning block, a gap exists between the crankshafts and the positioning block, and the axial positioning position is not in place; in addition, the machine tool adopts bidirectional machining, and the crankshaft can only be axially positioned by leaning against one side of the positioning block, so that the problem of axial movement of the crankshaft to the side which is not leaning against the positioning block in the machining process of the machine tool is caused.
Disclosure of Invention
In order to solve the technical problems, the utility model designs an axial positioning device of a special crankshaft flange hole machining machine for realizing automatic axial positioning of a crankshaft of the special crankshaft flange hole machining machine, and when the special crankshaft flange hole machining machine is used for machining, the crankshaft is placed on a tool, and an oil cylinder of the device stretches back and forth to drive a swinging rod to swing left and right, so that the crankshaft on the tool is driven to abut against a positioning block, the axial positioning of the crankshaft is realized to replace manual operation, and the working efficiency is improved. The specific technical scheme is as follows:
an axial positioning device of a special crankshaft flange hole machining machine is characterized in that: the hydraulic cylinder comprises a base, wherein a T-shaped seat is arranged above the base and connected through a screw, a round hole is formed in the T-shaped seat, a double-piston rod oil cylinder is arranged in the round hole of the T-shaped seat through a screw, a pipe joint is arranged at the rear side of the T-shaped seat, and hydraulic oil enters an oil cavity of the oil cylinder through the pipe joint so as to realize front-back expansion of the hydraulic cylinder;
the rear side piston rod of the oil cylinder is provided with a nut, a proximity switch is arranged below the nut, and the proximity switch is connected with the control center; the front side piston rod of the oil cylinder is provided with a single-lug ring which is connected with the rear end of the swing rod, the middle part of the swing rod is connected with a supporting seat in a shaft way, and the supporting seat is fixed on the base; the front end of the swing rod is abutted with the crankshaft;
the axial positioning device is mounted on a machine tool, and a positioning block is further arranged on the machine tool.
The square hole is formed in the supporting seat, the swing rod is arranged in the square hole, the square hole and the strip pin hole are formed in the rear end of the swing rod, the square hole and the strip pin hole are connected with the single-ear ring of the piston rod at the front side of the oil cylinder through a pin shaft, and the pin hole is formed in the front end of the swing rod and is connected with the supporting seat through the pin shaft;
baffles are arranged on two sides of the supporting seat and used for limiting the swing range of the swing rod;
the base is formed by welding an upper bottom plate, a lower bottom plate and a middle partition plate;
the proximity switch is arranged on the switch frame, and the switch frame is connected with the base through screws.
The utility model has the advantages that: the crankshaft flange hole machining tool is used for solving the problems that a crankshaft is not positioned in place on a tool manually in the process of machining the crankshaft by the crankshaft flange hole machining tool, a gap exists between the crankshaft and a positioning block, axial movement exists, and the like, and an oil cylinder in the axial positioning device can drive a swinging rod to swing left and right in the machining process of the machine tool, so that the crankshaft is driven to abut against the positioning block, the axial positioning of the crankshaft is realized, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a bottom view of FIG. 1 with the crankshaft removed;
fig. 3 is a left side view of fig. 2.
Detailed Description
The utility model is specifically described below with reference to the accompanying drawings, and as shown in the drawings, the utility model comprises a T-shaped seat 1, a double-piston rod oil cylinder 2, a screw 3, a front side piston rod 4, a countersunk screw 5, a supporting seat 6, a baffle 7, a swinging rod axial positioning mechanism 8, a swinging rod 9, a pin shaft 13, a screw 3, a base 15, a switch frame 17, a proximity switch 18, a nut 19, a rear side piston rod 20, a tool 21, a crankshaft 22, a pin shaft 24, a positioning block 25, a pressing block 26, an upper bottom plate 27, a middle partition plate 28 and a lower bottom plate 29;
the base 15 is formed by welding an upper bottom plate 27, a lower bottom plate 29 and a middle partition plate 28, the upper side of the base 15 is connected with a T-shaped seat 1 through a screw 3, a round hole is formed in the T-shaped seat 1, a double-piston rod oil cylinder 2 is arranged in the round hole of the T-shaped seat 1 through the screw 3, a pipe joint is arranged at the rear side of the T-shaped seat 1, hydraulic oil enters an oil cavity of the double-piston rod oil cylinder 2 through the pipe joint so as to realize front and rear expansion of the hydraulic cylinder, a nut 19 is arranged on a piston rod 20 at the rear side of the double-piston rod oil cylinder 2, a proximity switch 18 is arranged below the nut 19, and the proximity switch is connected with a control center; the proximity switch 18 is arranged on the switch frame 17, and the switch frame 17 is connected with the base 15 through the screw 3; the piston rod 4 at the front side of the double-piston rod oil cylinder 2 is provided with a single-lug ring which is connected with the swing rod axial positioning mechanism 8; the swing rod axial positioning mechanism 8 consists of a supporting seat 6 and a swing rod 9, the supporting seat 6 is fixed on a base 15, a square hole is formed in the supporting seat 6, the swing rod 9 is arranged in the square hole, a long strip pin hole is formed in the rear end of the swing rod 9 and is connected with a single-lug ring of a piston rod 4 at the front side of the oil cylinder through a pin shaft 13, a pin hole is formed in the middle of the front end of the swing rod and is connected with the supporting seat 6 through a pin shaft 24, and the foremost end of the swing rod is abutted against a crankshaft 22; baffles 7 are arranged on two sides of the supporting seat 6 and used for limiting the swing range of the swing rod;
the principle of the utility model is that the axial positioning device is arranged on a machine tool 21, and the front piston rod 4 of the double piston rod oil cylinder 2 stretches back and forth to drive the swing rod 9 to swing left and right, so that the crankshaft 22 is pushed to lean against the positioning block 25, and the axial automatic positioning of the crankshaft is realized; the piston rods on the front side and the rear side synchronously run, and a nut 19 and a proximity switch 18 approach feedback position signal are arranged on a piston rod 20 on the rear side of the double-piston rod oil cylinder 2 and used for monitoring the position of a swing rod of the axial positioning device so as to realize the butt joint with a machine tool.
Claims (5)
1. An axial positioning device of a special crankshaft flange hole machining machine is characterized in that: the hydraulic cylinder comprises a base, wherein a T-shaped seat is arranged above the base and connected through a screw, a round hole is formed in the T-shaped seat, a double-piston rod oil cylinder is arranged in the round hole of the T-shaped seat through a screw, a pipe joint is arranged at the rear side of the T-shaped seat, and hydraulic oil enters an oil cavity of the oil cylinder through the pipe joint so as to realize front-back expansion of the hydraulic cylinder;
the rear side piston rod of the oil cylinder is provided with a nut, a proximity switch is arranged below the nut, and the proximity switch is connected with the control center; the front side piston rod of the oil cylinder is provided with a single-lug ring which is connected with the rear end of the swing rod, the middle part of the swing rod is connected with a supporting seat in a shaft way, and the supporting seat is fixed on the base; the front end of the swing rod is abutted with the crankshaft;
the axial positioning device is mounted on a machine tool, and a positioning block is further arranged on the machine tool.
2. The axial positioning device of the special crankshaft flange hole machining machine according to claim 1, wherein: the square hole is formed in the supporting seat, the swing rod is arranged in the square hole, the square hole and the strip pin hole are formed in the rear end of the swing rod, the single-lug ring of the piston rod at the front side of the oil cylinder is connected with the supporting seat through a pin shaft, and the pin hole is formed in the front end of the swing rod and is connected with the supporting seat through the pin shaft.
3. The axial positioning device of the special crankshaft flange hole machining machine according to claim 1, wherein: the baffles are arranged on two sides of the supporting seat and used for limiting the swing range of the swing rod.
4. The axial positioning device of the special crankshaft flange hole machining machine according to claim 1, wherein: the base is formed by welding an upper bottom plate, a lower bottom plate and a middle partition plate.
5. The axial positioning device of the special crankshaft flange hole machining machine according to claim 1, wherein: the proximity switch is arranged on the switch frame, and the switch frame is connected with the base through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321522318.7U CN220481003U (en) | 2023-06-15 | 2023-06-15 | Axial positioning device of special crankshaft flange hole machining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321522318.7U CN220481003U (en) | 2023-06-15 | 2023-06-15 | Axial positioning device of special crankshaft flange hole machining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220481003U true CN220481003U (en) | 2024-02-13 |
Family
ID=89840676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321522318.7U Active CN220481003U (en) | 2023-06-15 | 2023-06-15 | Axial positioning device of special crankshaft flange hole machining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220481003U (en) |
-
2023
- 2023-06-15 CN CN202321522318.7U patent/CN220481003U/en active Active
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