CN215092100U - Clamp for machining inner hole of large diesel engine bushing - Google Patents
Clamp for machining inner hole of large diesel engine bushing Download PDFInfo
- Publication number
- CN215092100U CN215092100U CN202023178941.4U CN202023178941U CN215092100U CN 215092100 U CN215092100 U CN 215092100U CN 202023178941 U CN202023178941 U CN 202023178941U CN 215092100 U CN215092100 U CN 215092100U
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- clamping arm
- upper clamping
- bush
- clamp
- cavity
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Abstract
The utility model relates to an anchor clamps are used in processing of large-scale diesel engine bush hole belongs to the lathe machining field. It includes: the clamping part, the combining handle and the locking part; the clamping part comprises an upper clamping arm and a lower clamping arm, the upper clamping arm and the lower clamping arm are semi-arc rings with the same diameter, and clamping heads extending outwards are arranged on two sides of the upper clamping arm and the lower clamping arm; the combining handle is a cylinder, and the diameter of the end surface of the combining handle is the same as the inner diameter of the upper clamping wall. The utility model discloses make bush hole processing back, easily dismantle, reduce economic loss, improve scientific research test efficiency.
Description
Technical Field
The utility model belongs to the lathe machining field, concretely relates to anchor clamps are used in processing of large-scale diesel engine bush hole.
Background
The general material of large-scale diesel engine bush is tin bronze, belong to alloy material, the wall thickness is thinner, the material is softer, the processing technical scheme of original bush hole in the scientific research test process is, cool the bush in the liquid nitrogen, after pressing into the connecting rod aperture through the special frock, process the bush hole. After the processing of bush hole, need carry out scientific research test and detect the surface index of its hole, need carry out the destructive mode of getting, be about to the bush and extrude by force from the connecting rod bottom outlet, because of connecting rod bottom outlet and bush are interference fit, at the extrusion in-process, connecting rod and bush all have certain destruction to be out of shape, cause part irreversible destruction, arouse unnecessary economic loss.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The to-be-solved technical problem of the utility model is: how to provide a large-scale diesel engine anchor clamps for bush hole processing to solve when the bush hole processing back, easily dismantle, reduce economic loss, improve scientific research test efficiency.
(II) technical scheme
In order to solve the technical problem, the utility model provides a large-scale diesel engine bush hole processing clamp, which comprises a clamping part, a combining handle 2 and a locking part 3;
the clamping part comprises an upper clamping arm 11 and a lower clamping arm 12, the upper clamping arm 11 and the lower clamping arm 12 are semicircular rings with the same diameter, and two sides of an opening of the upper clamping arm 11 and two sides of an opening of the lower clamping arm 12 are provided with clamping heads extending outwards;
when a bush is machined, the upper clamping arm 11 is in butt joint with the lower clamping arm 12, a columnar cavity is formed inside the upper clamping arm and the lower clamping arm, a bush to be machined is arranged at one end of the cavity, the other end of the cavity is connected with the combination handle 2, and the clamping part is arranged on a lathe through the combination handle 2; the locking part 3 penetrates through the clamping head to fix the upper clamping arm 11 and the lower clamping arm 12.
Two oil holes 4 are formed in the arc of the upper clamping arm 11, the central shaft of each oil hole 4 is in the radial direction, and the positions of the two oil holes 4 correspond to the positions of the oil holes in the to-be-machined bushing.
Wherein, the locking part 3 is a socket head cap screw.
The combined handle 2 is a cylinder, the diameter of the end face of the combined handle is the same as the inner diameter of the cylindrical cavity, and one end of the combined handle 2 is arranged in the cavity.
(III) advantageous effects
Compared with the prior art, the utility model discloses possess following beneficial effect:
(1) the utility model discloses a direct clamping of anchor clamps bulge position is to the three-jaw chuck of lathe to adopt the firm mode of centering to carry out the clamping, rather than direct action work piece department, both stabilized the center, increased thin wall parts's resistant processing intensity again, and reduced the clamping power, by a wide margin reduced the deformation problem of course of working.
(2) The utility model discloses an anchor clamps are constituteed by detachable two parts in clamping bush part department, have solved the dismantlement problem after the processing of bush hole, have improved scientific research test's efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a bushing clamp;
FIG. 3 is a schematic view of a bushing clamp;
fig. 4 is a perspective view of a bushing clamp.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings and examples.
In order to solve the above problems, the utility model provides a large diesel engine bush inner hole machining fixture, as shown in fig. 1 to 4, comprising a clamping part, a combining handle 2 and a locking part 3;
the clamping part comprises an upper clamping arm 11 and a lower clamping arm 12, the upper clamping arm 11 and the lower clamping arm 12 are semicircular rings with the same diameter, and two sides of an opening of the upper clamping arm 11 and two sides of an opening of the lower clamping arm 12 are provided with clamping heads extending outwards;
when a bush is machined, the upper clamping arm 11 is in butt joint with the lower clamping arm 12, a columnar cavity is formed inside the upper clamping arm and the lower clamping arm, a bush to be machined is arranged at one end of the cavity, the other end of the cavity is connected with the combination handle 2, and the clamping part is arranged on a lathe through the combination handle 2; the locking part 3 penetrates through the clamping head to fix the upper clamping arm 11 and the lower clamping arm 12.
Two oil holes 4 are formed in the arc of the upper clamping arm 11, the central shaft of each oil hole 4 is in the radial direction, and the positions of the two oil holes 4 correspond to the positions of the oil holes in the to-be-machined bushing.
Wherein, the locking part 3 is a socket head cap screw.
The combined handle 2 is a cylinder, the diameter of the end face of the combined handle is the same as the inner diameter of the cylindrical cavity, and one end of the combined handle 2 is arranged in the cavity.
And clamping the clamp combined handle on a three-jaw chuck of a lathe, and manually adjusting to be coaxial with a lathe spindle. And (3) placing the bush to be machined into the inner cavity of the clamp, enabling the bottom surface of the part to be tightly attached to the bottom surface of the inner cavity of the clamp, aligning the oil hole of the bush with the oil hole of the clamping head, locking screws at two ends of the clamp, and screwing the two ends in a matched manner during locking, so that the inner hole of the bush can be machined.
The clamp is manufactured by selecting 40Cr as raw materials, machining round bars, turning the shapes, welding the joint of the protruding screws at two ends, reserving the machining amount of 0.1mm for rough turning of an inner hole, carrying out heat treatment on HRC45-55 degrees, finely turning the inner hole to the required size, ensuring the surface roughness Ra1.6 of the inner cavity of the clamp, ensuring the reliable strength of the locking part of the screw, and finally linearly cutting an opening gap to finish the clamp machining.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (4)
1. The clamp for processing the inner hole of the large diesel engine bushing is characterized by comprising a clamping part, a combination handle (2) and a locking part (3);
the clamping part comprises an upper clamping arm (11) and a lower clamping arm (12), the upper clamping arm (11) and the lower clamping arm (12) are semicircular rings with the same diameter, and two sides of an opening of the upper clamping arm (11) and two sides of an opening of the lower clamping arm (12) are respectively provided with an outwardly extending clamping head;
when the bush is machined, the upper clamping arm (11) is in butt joint with the opening of the lower clamping arm (12), a columnar cavity is formed inside the bush, one end of the cavity is filled with the bush to be machined, the other end of the cavity is connected with the combination handle (2), and the clamping part is arranged on a lathe through the combination handle (2); the locking part (3) penetrates through the clamping head to fix the upper clamping arm (11) and the lower clamping arm (12).
2. The clamp according to claim 1, characterized in that the upper clamping arm (11) is provided with two oil holes (4) on its circular arc, the central axes of the oil holes (4) are along the radial direction, and the positions of the two oil holes (4) correspond to the positions of the oil holes on the bush to be machined.
3. A clamp as claimed in claim 1, characterized in that said locking portion (3) is a socket head cap screw.
4. The clamp according to claim 1, characterized in that the coupling shank (2) is a cylinder with an end surface diameter equal to the inner diameter of the cylindrical cavity, and one end of the coupling shank (2) is fitted into the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023178941.4U CN215092100U (en) | 2020-12-25 | 2020-12-25 | Clamp for machining inner hole of large diesel engine bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023178941.4U CN215092100U (en) | 2020-12-25 | 2020-12-25 | Clamp for machining inner hole of large diesel engine bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215092100U true CN215092100U (en) | 2021-12-10 |
Family
ID=79308321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023178941.4U Active CN215092100U (en) | 2020-12-25 | 2020-12-25 | Clamp for machining inner hole of large diesel engine bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215092100U (en) |
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2020
- 2020-12-25 CN CN202023178941.4U patent/CN215092100U/en active Active
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