CN217413195U - Numerical control finish turning clamping device suitable for production of piston rod with flat part - Google Patents
Numerical control finish turning clamping device suitable for production of piston rod with flat part Download PDFInfo
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- CN217413195U CN217413195U CN202220243491.2U CN202220243491U CN217413195U CN 217413195 U CN217413195 U CN 217413195U CN 202220243491 U CN202220243491 U CN 202220243491U CN 217413195 U CN217413195 U CN 217413195U
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- flat part
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Abstract
The utility model relates to a numerical control finish turning clamping device suitable for take flat piston rod production, including work piece and clamping frock, press from both sides the frock and be discoid structure, the clamping frock includes the disc body and fixing bolt spare, and the center department of the disc body is provided with the centre bore, is provided with the locating hole of a plurality of different positions with the outside radiation of centre bore on the disc body, and fixing bolt spare is installed in centre bore and locating hole to with the fixed chucking of the flat piston rod of taking of work piece. The utility model relates to an ingenious, simple structure, low cost, convenient operation realizes "a calorie of one" clamping location of work piece, guarantees the concentricity of work piece, satisfies the purpose of different rod footpaths clamping, to prior art, has fine market prospect and development space.
Description
Technical Field
The utility model relates to a hydraulic support piston rod clamping frock field, concretely relates to numerical control finish turning clamping device suitable for take flat piston rod production.
Background
The telescopic jack realizes the movement of the hydraulic support by depending on the lifting of the piston rod, the flat part joint of the piston rod at the upper part of the jack is connected with the column cap by a pin shaft, the cylinder bottom at the lower part of the jack is connected with the column nest by a pin shaft, and the upper part and the lower part are connected and fixed and then are pressurized to realize the telescopic movement of the piston rod. The piston rod with the flat part is used for finish machining by a CKA6163 (four-cutter-position) numerical control horizontal lathe in the machining process, one end of a workpiece is clamped by a head three-jaw chuck of the lathe, a workpiece center hole is pushed by a lathe tailstock center, the concentricity of the workpiece is ensured by one clamping and one pushing, and the clamping and positioning mode cannot be used for directly and effectively clamping and pushing the workpiece with the flat part, and the section of one end of the workpiece is a non-revolving body. The non-revolving body with the flat piston rod end section is shown in figure 1, the requirement to be met by the processing according to the working procedure is required to be at the clamping end of the chuck of the machine head, and the chuck cannot directly clamp the large-head flat part of the movable part.
How to design a design benefit, simple structure, low cost, convenient operation realizes "one card one top" clamping location of work piece, guarantees the concentricity of work piece, satisfies the numerical control finish turning clamping device who is applicable to the production of taking flat piston rod of different rod footpaths clamping and is the problem that needs to solve at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the piston rod that has the current flat portion of taking and to have in the course of working the piston rod of unable flat portion of taking, the work piece that the one end cross-section is the non-solid of revolution carries out direct effectual card, top fixed, technical problem such as concentricity of the unable work piece of guaranteeing, the utility model provides a numerical control finish turning clamping device suitable for take flat portion piston rod production realizes design benefit, simple structure, low cost, and convenient operation realizes "one card one" clamping location of work piece, guarantees the concentricity of work piece, satisfies the purpose of different rod footpath clamping.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the numerical control finish turning clamping device suitable for production of the piston rod with the flat part comprises a workpiece and a clamping tool matched with the workpiece for use, wherein the clamping tool is of a disc-shaped structure and comprises a disc body and a fixing bolt part used for fixing the clamping workpiece, a center hole is formed in the center of the disc body, a plurality of positioning holes in different positions are formed in the disc body in a mode that the center hole radiates outwards, and the fixing bolt part is installed in the center hole and the positioning holes to fix and clamp the piston rod with the flat part of the workpiece.
The fixing bolt member includes a center bolt member installed at the center hole and an eccentric set bolt member installed at the set hole.
The tail end of the bolt of the central bolt piece is processed in a conical shape, the conical tip is inserted into the side part of the piston rod with the flat part so as to tightly push one end of the piston rod with the flat part, and the other end of the piston rod with the flat part is tightly pushed through the tip of the tailstock of the numerical control lathe.
The bolt head of the eccentric positioning bolt piece is clamped below the piston rod with the flat part.
The central bolt piece and the eccentric positioning bolt piece are both inner hexagonal bolt pieces.
The number of the positioning holes is four to eight.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model discloses a work piece and the clamping frock that matches with it and use, the clamping frock includes the disc body and is used for the fixed bolt spare of fixed chucking work piece, the center department of the disc body is provided with the centre bore, be provided with the locating hole of a plurality of different positions with the centre bore external radiation on the disc body, the fixed bolt spare is installed in centre bore and locating hole, in order to fix the chucking with the band flat portion piston rod of work piece, adopt the fixed bolt spare clamping location in different positions, the effectual piston rod of taking the flat portion is blocked, the top is fixed, and the concentricity of work piece has been guaranteed;
2) the tail end of the bolt of the central bolt part is processed in a conical shape, a conical tip is inserted into the side part of the piston rod with the flat part so as to tightly push one end of the piston rod with the flat part, and the other end of the piston rod with the flat part is tightly pushed through a tip of a tailstock of a numerical control lathe;
3) the piston rod with the flat part is suitable for piston rods with different rod diameters by changing the position and the size of the hexagon head bolt on the disc body;
4) the clamping tool provided by the invention is used for practically and effectively clamping and fixing the piston rod with the flat part in the actual production and processing process, ensures the concentricity of workpieces, has obvious effect and generates positive economic benefit.
Drawings
FIG. 1 is a schematic view of a prior art piston rod workpiece with flats;
FIG. 2 is a schematic view of the disk body of the present invention;
FIG. 3 is a schematic view of the clamping state of the present invention;
the labels in the figure are: 1. the numerical control lathe tailstock comprises a circular disc body, a central hole, a positioning hole, a central bolt part, an eccentric positioning bolt part, a numerical control lathe tailstock center, a workpiece and a positioning hole, wherein the central bolt part is 2, the central hole is 3, the positioning hole is 4, the central bolt part is 5, the eccentric positioning bolt part is 6, and the numerical control lathe tailstock center is 7.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in the figure, the numerical control finish turning clamping device suitable for production of the piston rod with the flat part comprises a workpiece 7 and a clamping tool matched with the workpiece 7, wherein the clamping tool is of a disc-shaped structure and comprises a disc body 1 and a fixing bolt part for fixing and clamping the workpiece 7, a central hole 2 is formed in the center of the disc body 1, a plurality of positioning holes 3 in different positions are formed in the disc body 1 in a manner that the central hole 2 is radiated outwards, and the number of the positioning holes 3 is four to eight; the fixing bolt pieces comprise a central bolt piece 4 arranged at the central hole 2 and an eccentric positioning bolt piece 5 arranged at the positioning hole 3; the fixing bolt pieces are arranged in the central hole 2 and the positioning hole 3 so as to fixedly clamp the piston rod with the flat part of the workpiece 7.
The tail end of the bolt of the central bolt part 4 is processed in a conical shape, a conical tip is inserted into the side part of the piston rod with the flat part so as to tightly push one end of the piston rod with the flat part, and the other end of the piston rod with the flat part is tightly pushed through a tailstock tip 6 of a numerical control lathe; the bolt head of the eccentric positioning bolt piece 5 is clamped below the piston rod with the flat part.
The central bolt piece 4 and the eccentric positioning bolt piece 5 are both inner hexagonal bolt pieces.
As shown in fig. 1, fig. 1 is a schematic view of a conventional piston rod workpiece with a flat part, a CKA6163 (four tool positions) numerical control horizontal lathe is used for performing a finish machining process on the piston rod with the flat part in a machining process, one end of the workpiece is clamped by a headstock three-jaw chuck of the lathe, a center hole of the workpiece is pushed by a tip of a lathe tailstock, and the concentricity of the workpiece is ensured by one clamping and one pushing. The utility model discloses reform transform current clamping frock, as shown after reforming transform in fig. 2 the utility model discloses circle disk body schematic diagram, fig. 3 is the utility model discloses clamping state schematic diagram.
In practical application, the disk body 1 in fig. 3 is mainly used for clamping a disk by a three-jaw chuck at the head of a numerically controlled lathe, and a machined M24 x 100 hexagon head bolt tightly pushes and positions the flat part of the piston rod through the center of the disk body; the piston rod with the flat part can be suitable for different rod diameters by changing the position and the size of the M20 x 80 hexagon head bolt on the disk hole; and a tailstock centre 6 of the numerical control lathe directly props against the central hole of the workpiece. Thus, the workpiece is clamped and positioned one by one through the disc body 1 and the numerical control lathe tailstock center 6 in the sequence 1, and the concentricity of the workpiece is ensured; the disc body 1 is made of a 27SiMn bar stock, and is processed by quenching and tempering to have the thickness of 25mm, the excircle diameter phi of 210mm and sufficient strength; m24 x 100 hexagon head bolts of the central bolt piece 4 are subjected to proper processing and correction at variable time to meet the requirement of tightly propping the central hole of the end face of the flat part of the piston rod; the size of the disc body phi 210 meets the clamping requirement of a three-jaw chuck of a lathe; the center M24 of the disk body is provided with a threaded through hole which meets the requirement that an M24 x 100 hexagon head bolt penetrates through the middle part to tightly push the flat part of the piston rod; the 6M 20 threaded through holes distributed on the disc body 1 meet the requirement that a hexagonal head bolt with the size of M20 penetrates through the flat part of the rod of the auxiliary positioning piston, and different positions are adjusted to meet different rod diameters.
The utility model relates to an ingenious, moreover, the steam generator is simple in structure, low cost, high durability and convenient operation, realize that "one calorie of one top" clamping of work piece fixes a position, guarantee the concentricity of work piece, satisfy the purpose of different rod footpath clamping, solve present piston rod of taking the flat portion and have the piston rod that can't take the flat portion in the in-process, the one end cross-section carries out direct effectual card, the top is fixed for the work piece of the non-solid of revolution, technical problem such as concentricity of work piece can't be guaranteed, to prior art, fine market prospect and development space have.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples, and various changes can be made without departing from the concept of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. Numerical control finish turning clamping device suitable for production of piston rod with flat portion, including work piece (7) and the clamping frock that matches and use with it, its characterized in that: the clamping tool is of a disc-shaped structure and comprises a disc body (1) and a fixing bolt piece for fixing a clamping workpiece (7), a center hole (2) is formed in the center of the disc body (1), a plurality of positioning holes (3) in different positions are formed in the disc body (1) in a mode that the center hole (2) radiates outwards, and the fixing bolt piece is installed in the center hole (2) and the positioning holes (3) to fix and clamp the piston rod with the flat part of the workpiece (7).
2. The numerical control finish turning clamping device suitable for production of the piston rod with the flat part according to claim 1, characterized in that: the fixing bolt piece comprises a central bolt piece (4) arranged at the central hole (2) and an eccentric positioning bolt piece (5) arranged at the positioning hole (3).
3. The numerical control finish turning clamping device suitable for production of the piston rod with the flat part as claimed in claim 2, characterized in that: the tail end of the bolt of the central bolt piece (4) is processed in a conical shape, the conical tip is inserted into the side part of the piston rod with the flat part so as to tightly push one end of the piston rod with the flat part, and the other end of the piston rod with the flat part is tightly pushed through a tailstock tip (6) of a numerical control lathe.
4. The numerical control finish turning clamping device suitable for production of the piston rod with the flat part as claimed in claim 2, characterized in that: the bolt head of the eccentric positioning bolt piece (5) is clamped below the piston rod with the flat part.
5. The numerical control finish turning clamping device suitable for production of the piston rod with the flat part as claimed in claim 2, characterized in that: the central bolt piece (4) and the eccentric positioning bolt piece (5) both adopt inner hexagonal bolt pieces.
6. The numerical control finish turning clamping device suitable for production of the piston rod with the flat part according to claim 1, characterized in that: the number of the positioning holes (3) is four to eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220243491.2U CN217413195U (en) | 2022-01-29 | 2022-01-29 | Numerical control finish turning clamping device suitable for production of piston rod with flat part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220243491.2U CN217413195U (en) | 2022-01-29 | 2022-01-29 | Numerical control finish turning clamping device suitable for production of piston rod with flat part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217413195U true CN217413195U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220243491.2U Active CN217413195U (en) | 2022-01-29 | 2022-01-29 | Numerical control finish turning clamping device suitable for production of piston rod with flat part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217413195U (en) |
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2022
- 2022-01-29 CN CN202220243491.2U patent/CN217413195U/en active Active
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