CN213969968U - Floating centering fixture for rough machining of engine cylinder body - Google Patents
Floating centering fixture for rough machining of engine cylinder body Download PDFInfo
- Publication number
- CN213969968U CN213969968U CN202022470419.7U CN202022470419U CN213969968U CN 213969968 U CN213969968 U CN 213969968U CN 202022470419 U CN202022470419 U CN 202022470419U CN 213969968 U CN213969968 U CN 213969968U
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- base
- engine cylinder
- ejector rods
- cylinder body
- swing block
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Abstract
The utility model discloses an engine cylinder block rough machining is with floating centering anchor clamps, anchor clamps include base (1), be provided with two ejector pins (2) in base (1) symmetrically, ejector pin (2) sliding connection is in base (1), still be provided with in base (1) with spring (3) that ejector pin (2) bottom contacted, still be provided with in base (1) and cup joint in the armful of ejector pin (2) outside cover (4), still set up on base (1) and embrace the hydraulic line that the inner chamber that set (4) was located is linked together, anchor clamps still include first location pendulum piece (6) and second location pendulum piece (7) of being connected as an organic whole structure through connecting pin (5), first location pendulum piece (6) and second location pendulum piece (7) can use connecting pin (5) as the axle relative swing to the bottom face of first location pendulum piece (6) and second location pendulum piece (7) respectively with the bottom of two ejector pins (2) The top end faces are contacted.
Description
Technical Field
The utility model relates to a frock clamp, especially an engine cylinder block rough machining is with floating centering fixture.
Background
In an engine cylinder block machining automatic line, because a blank of a cylinder block is rough, a clamp rough machining datum plane process is particularly important, a rough machining machine tool clamp is a main component for determining the machining precision of a workpiece, the distance from the center of the workpiece to the machined datum plane needs to be determined firstly in machining and positioning, and therefore a positioning and centering mechanism of the clamp is very important. And traditional anchor clamps are mostly fixed, consequently often can appear the great problem of positioning error in the course of the work, influence the precision and the work efficiency of processing. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, the atress is even, can make the floating centering fixture of adaptability action along with engine cylinder body centering operation.
The technical solution of the utility model is that: the utility model provides an engine cylinder block rough machining is with floating centering fixture which characterized in that: the clamp comprises a base 1, two ejector rods 2 are symmetrically arranged in the base 1, the ejector rods 2 are connected in the base 1 in a sliding manner, a spring 3 which is contacted with the bottom ends of the ejector rods 2 is also arranged in the base 1, a holding sleeve 4 which is sleeved outside the ejector rods 2 is also arranged in the base 1, a hydraulic pipeline which is communicated with an inner cavity where the holding sleeve 4 is arranged is also arranged on the base 1,
the fixture further comprises a first positioning swing block 6 and a second positioning swing block 7 which are connected into a whole through a connecting pin 5, wherein the first positioning swing block 6 and the second positioning swing block 7 can swing relatively by taking the connecting pin 5 as an axis, and the bottom end surfaces of the first positioning swing block 6 and the second positioning swing block 7 are respectively in contact with the top end surfaces of the two ejector rods 2.
Compared with the prior art, the utility model, have following advantage:
the floating type centering fixture for rough machining of the engine cylinder body in the structural form is simple in structure, ingenious in design and reasonable in layout, and is designed to be of a special structure aiming at various problems existing in the use process of the traditional centering fixture during fixing. The positioning swing blocks directly contacted with the engine cylinder body are supported by two ejector rods which are symmetrically distributed, the two ejector rods can float in the longitudinal direction, and meanwhile, the two positioning swing blocks can also swing relatively, so that the centering operation of the cylinder body is adapted; after the axle center of the opening of the cylinder body is found, the two ejector rods can be tightly embraced by the clasping sleeve under the action of hydraulic pressure, and therefore the two ejector rods are converted into rigid supports for the cylinder body. Therefore, the precision of the engine cylinder body during centering operation can be effectively improved, the working efficiency is improved, and the labor amount of operators is reduced. And the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a side view (in cross-section) of an embodiment of the invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1 and 2: a floating type centering fixture for rough machining of an engine cylinder body comprises a base 1, wherein two ejector rods 2 are symmetrically arranged in the base 1, the ejector rods 2 are connected in the base 1 in a sliding manner, a spring 3 which is contacted with the bottom ends of the ejector rods 2 is also arranged in the base 1, a clasping sleeve 4 which is sleeved outside the ejector rods 2 is also arranged in the base 1, a hydraulic pipeline which is communicated with an inner cavity where the clasping sleeve 4 is arranged is also arranged on the base 1,
the fixture further comprises a first positioning swing block 6 and a second positioning swing block 7 which are connected into a whole through a connecting pin 5, wherein the first positioning swing block 6 and the second positioning swing block 7 can swing relatively by taking the connecting pin 5 as an axis, and the bottom end surfaces of the first positioning swing block 6 and the second positioning swing block 7 are respectively in contact with the top end surfaces of the two ejector rods 2.
The utility model discloses floating centering fixture's for rough machining of engine cylinder block working process as follows: firstly, an engine cylinder body needing centering operation is placed on the clamp, at the moment, a first positioning swing block 6 and a second positioning swing block 7 are directly contacted with the engine cylinder body, and after the engine cylinder body is contacted with the first positioning swing block 6 and the second positioning swing block 7, if the engine cylinder body has certain casting deviation, the two positioning swing blocks can relatively swing by taking a connecting pin 5 as an axis, so that the clamp is suitable for the specific size of the engine cylinder body, and therefore the first positioning swing block 6 and the second positioning swing block 7 can be simultaneously contacted with the engine cylinder body and can be well supported; then an operator can perform centering adjustment on the cylinder body, the two ejector rods 2 can longitudinally move along with the position change of the engine cylinder body in the adjusting process, after the adjustment is finished, hydraulic oil is filled into an inner cavity where the clasping sleeve 4 is located through a hydraulic pipeline, the clasping sleeve 4 clasps the ejector rods 2 from the outer side, at the moment, the two ejector rods 2 and the base 1 are relatively fixed, and the engine cylinder body is rigidly supported;
after the subsequent procedures of centering operation are finished, the hydraulic oil is decompressed, and the ejector rod 2 recovers the degree of freedom; after the engine cylinder body is removed, the mandril 2 is restored to the initial position under the action of the spring 3 to wait for the next centering and clamping operation.
Claims (1)
1. The utility model provides an engine cylinder block rough machining is with floating centering fixture which characterized in that: the clamp comprises a base (1), two ejector rods (2) are symmetrically arranged in the base (1), the ejector rods (2) are slidably connected in the base (1), a spring (3) which is contacted with the bottom ends of the ejector rods (2) is also arranged in the base (1), a clamping sleeve (4) which is sleeved outside the ejector rods (2) is also arranged in the base (1), a hydraulic pipeline which is communicated with an inner cavity where the clamping sleeve (4) is positioned is also arranged on the base (1),
the fixture further comprises a first positioning swing block (6) and a second positioning swing block (7) which are connected into a whole through a connecting pin (5), the first positioning swing block (6) and the second positioning swing block (7) can swing relatively by taking the connecting pin (5) as a shaft, and the bottom end faces of the first positioning swing block (6) and the second positioning swing block (7) are in contact with the top end faces of the two ejector rods (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022470419.7U CN213969968U (en) | 2020-10-30 | 2020-10-30 | Floating centering fixture for rough machining of engine cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022470419.7U CN213969968U (en) | 2020-10-30 | 2020-10-30 | Floating centering fixture for rough machining of engine cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213969968U true CN213969968U (en) | 2021-08-17 |
Family
ID=77259697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022470419.7U Active CN213969968U (en) | 2020-10-30 | 2020-10-30 | Floating centering fixture for rough machining of engine cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213969968U (en) |
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2020
- 2020-10-30 CN CN202022470419.7U patent/CN213969968U/en active Active
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