CN216359459U - Grinding machine center - Google Patents

Abstract

The utility model relates to the field of mechanical tooling, specifically disclose a grinding machine is top, including top body, seted up the oil groove on the top body, the edge of oil groove is the burnishing edge, and the burnishing edge contacts with the apical pore wall of work piece. This practicality can improve the grinding precision to the work piece excircle.

Description

Grinding machine center

Technical Field

The utility model belongs to the technical field of mechanical frock's technique and specifically relates to a grinding machine is top.

Background

When the cylindrical grinding is carried out on the rod-shaped workpiece, the two ends of the part are provided with center holes in advance for supporting and positioning centers, and then the grinding processing of the outer circle of the workpiece is completed through a machine tool.

Generally, after the center hole is formed, the center is directly jacked into the center hole, and then the outer circle of the workpiece is ground.

However, the hole wall of the center hole has the defects of burrs and the like, and is not smooth enough, so that the center hole is directly supported and positioned through the center, and the workpiece vibrates in the high-speed rotating process of the workpiece, so that the precision of the cylindrical grinding of the workpiece is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the grinding precision to the work piece excircle, this application provides a grinding machine top.

The application provides a pair of grinding machine is top, including top body, the oil groove has been seted up on top body, the edge of oil groove is the burnishing edge, the burnishing edge contacts with the apex hole pore wall of work piece.

By adopting the technical scheme, before the workpiece is subjected to cylindrical grinding processing, the center body is fixed on equipment, the center is inserted into the center hole, the burnishing edge is in contact with the hole wall of the center hole, the equipment drives the workpiece to rotate at high speed, and in the process of high-speed rotation of the workpiece, the hole wall of the center hole is cut under the action of the burnishing edge, so that the hole wall of the center hole is smooth, the coaxiality of the center hole and the workpiece is ensured, and the processing precision of the workpiece in the subsequent cylindrical grinding process is improved.

Optionally, the oil groove is provided with a plurality of oil grooves, and the plurality of oil grooves are uniformly arranged along the circumferential direction of the tip body.

Through adopting above-mentioned technical scheme, a plurality of oil grooves can form many smoothing sword, and many smoothing sword cut the pore wall of apical pore simultaneously, have further improved the cutting effect to apical pore wall.

Optionally, the tip body includes a cutting portion and a supporting portion, the cutting portion is made of cemented carbide, and the cutting portion is fixedly connected with the supporting portion.

Through adopting above-mentioned technical scheme, because carbide's hardness is high, it is better to the cutting effect in apex hole, but carbide's cost is expensive, when using apex body to cut the apex hole, only need the cutting portion with the apex hole contact can, the cutting portion adopts carbide to make alone, can practice thrift manufacturing cost greatly.

Optionally, the cutting portion is provided with a positioning column coaxial with the cutting portion, the supporting portion is provided with a positioning hole coaxial with the supporting portion, and the positioning column is in insertion fit with the positioning hole.

Through adopting above-mentioned technical scheme, when fixing cutting portion and supporting part, through the grafting cooperation of reference column and locating hole, guarantee the axiality of cutting portion and supporting part for cutting portion and supporting part remain coaxial throughout after fixed.

Optionally, a plurality of first liquid discharge tanks are uniformly arranged on the supporting part, and at least one first liquid discharge tank is communicated with the oil groove.

Through adopting above-mentioned technical scheme, carry out cutting process's in-process to the pore wall of apex hole, need constantly spray the coolant liquid, first drainage tank can play the water conservancy diversion effect to coolant liquid and smear metal, can make cutting fluid and smear metal discharge to first drainage tank from the oil groove more smoothly, and then outwards discharge in the first drainage tank of follow, reduced cutting fluid and smear metal and led to the fact the possibility of blockking up to the oil groove.

Optionally, a second liquid discharge groove is formed in the support portion, and the first liquid discharge groove is communicated with the second liquid discharge groove.

Through adopting above-mentioned technical scheme, the setting of second flowing back groove can further play the water conservancy diversion effect to smear metal and cutting fluid, further makes cutting fluid and smear metal outwards discharge.

Optionally, a plurality of mounting holes are formed in the supporting portion, a plurality of connecting pieces are arranged in the mounting holes, and the mounting holes are communicated with the first liquid discharging groove.

Through adopting above-mentioned technical scheme, the mounting hole is linked together with first drainage groove, and first drainage groove can dodge the connecting piece, makes the holistic structure of device compacter, and the setting up of connecting piece has made things convenient for top body and device to assemble simultaneously.

Optionally, the groove wall of the first liquid discharge groove is an arc surface, and the outer ring wall of the connecting piece is attached to the groove wall of the first liquid discharge groove.

Through adopting above-mentioned technical scheme, the cell wall in first drain groove sets up to the cambered surface, when convenient processing, can make the outer rampart of connecting piece laminate with the cell wall in first drain groove better mutually, makes the connection of connecting piece more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. before the workpiece is subjected to cylindrical grinding processing, a tip body is fixed on equipment, a tip is inserted into a tip hole, a smoothing edge is in contact with the hole wall of the tip hole, the equipment drives the workpiece to rotate at a high speed, and in the process of high-speed rotation of the workpiece, the hole wall of the tip hole is cut under the action of the smoothing edge, so that the hole wall of the tip hole is smooth, the coaxiality of the tip hole and the workpiece is ensured, and the processing precision of the workpiece in the subsequent cylindrical grinding process is improved;

2. because the hard alloy has high hardness, the cutting effect on the center hole is better, but the manufacturing cost of the hard alloy is high, when the center hole is cut by using the center body, only the cutting part is required to be contacted with the center hole, and the cutting part is made of the hard alloy independently, so that the production cost can be greatly saved;

3. when the cutting part cuts the hole wall of the tip hole, cutting fluid needs to be added in the cutting process for cooling, and the first fluid drainage groove is arranged to enable the cutting fluid and chips to be discharged from the oil groove more smoothly.

Drawings

Fig. 1 is a schematic diagram for embodying the overall structure of the present embodiment.

Fig. 2 is an exploded view for embodying the overall structure of the present embodiment.

Description of reference numerals:

1. a tip body; 2. a cutting portion; 21. a positioning column; 22. an oil sump; 221. smoothing the edge; 3. a support portion; 31. an installation table; 311. mounting holes; 32. a support pillar; 321. a first drain tank; 322. a second drain tank; 33. a connecting table; 331. positioning holes; 4. a connecting member.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a grinding machine tip.

Referring to fig. 1, a grinding machine center comprises a center body 1, wherein the center body 1 comprises a cutting part 2 and a supporting part 3, and the cutting part 2 and the supporting part 3 are fixedly connected through brazing; cutting part 2 is the frustum form, make by hard alloy, supporting part 3 includes mount table 31, support column 32 and connection platform 33, mount table 31 is the round platform form, support column 32 is cylindricly, support column 32 is extended by the one end orientation of mount table 31 and deviates from the direction of the other end, connection platform 33 is trapezoidal round platform, connection platform 33 deviates from the one end orientation of mount table 31 by support column 32 and extends from the direction of mount table 31, support column 32 and connection platform 33 are coaxial setting and be integrated into one piece, connection platform 33 deviates from the terminal surface diameter of support column 32 and is corresponding with the terminal surface diameter of cutting part 2, cutting part 2 forms the frustum of a completion with connection platform 33 mutual amalgamation is fixed after.

Referring to fig. 2, a positioning column 21 is coaxially disposed on an end surface of the cutting portion 2, the positioning column 21 and the cutting portion 2 are integrally formed, a positioning hole 331 corresponding to the positioning column 21 is coaxially disposed on an end surface of the mounting table 31, and the positioning column 21 is in insertion fit with the positioning hole 331.

Referring to fig. 2, the hardness of the hard alloy is high, so that the center hole can be better cut, when the center body 1 cuts the hole wall of the center hole, only the cutting part 2 needs to be in contact with the center hole, but the manufacturing cost of the hard alloy is high, only the cutting part 2 is made of the hard alloy, and the production cost can be greatly saved. Through the inserting and matching of the positioning column 21 and the positioning hole 331, the coaxiality of the cutting part 2 and the supporting part 3 is ensured, so that the cutting part 2 and the supporting part 3 are always kept coaxial after being fixed.

Referring to fig. 1 and 2, the cutting portion 2 and the outer annular wall of the connecting table 33 are jointly provided with two oil grooves 22, the oil grooves 22 are formed along the generatrix direction of the cutting portion 2, the oil grooves 22 extend from the vertex of the cutting portion 2 to the supporting column 32, the two oil grooves 22 are formed, the two oil grooves 22 are arranged oppositely, and the edge of the opening of each oil groove 22 is a smoothing blade 221 for cutting the hole wall of the vertex hole.

Referring to fig. 1 and fig. 2, the outer annular wall of the supporting column 32 is provided with first liquid discharge grooves 321, the first liquid discharge grooves 321 are straight grooves, and the groove walls of the first liquid discharge grooves 321 are arc surfaces, in this embodiment, the number of the first liquid discharge grooves 321 is four, four first liquid discharge grooves 321 are uniformly formed along the circumferential direction of the supporting column 32, the first liquid discharge grooves 321 are formed along the height direction of the supporting column 32, wherein two first liquid discharge grooves 321 and two oil grooves 22 which are oppositely arranged are in one-to-one correspondence, the first liquid discharge grooves 321 are communicated with the oil grooves 22, and the lower end of the first liquid discharge grooves 321 extends to the mounting platform 31.

Referring to fig. 1 and 2, a second liquid discharge groove 322 is formed at a connection portion of the mounting table 31 and the support column 32, the second liquid discharge groove 322 is an annular groove, and the second liquid discharge groove 322 is communicated with the first liquid discharge groove 321.

Referring to fig. 1 and 2, when the cutting portion 2 cuts the tip hole, the cutting fluid needs to be sprayed, and the first fluid discharge groove 321 and the second fluid discharge groove 322 are provided so that the cutting fluid and the cutting fluid can be smoothly discharged from the oil groove 22 to the outside, thereby reducing the possibility that the cutting fluid and the cutting fluid block the oil groove 22.

Referring to fig. 1 and 2, mounting holes 311 have been seted up on the terminal surface of mount table 31 near support column 32, the quantity of mounting holes 311 sets up to four in this embodiment, four mounting holes 311 evenly set up along the circumferencial direction of mount table 31, four mounting holes 311 and four first drainage grooves 321 one-to-one, mounting holes 311 is linked together with first drainage groove 321, mounting holes 311 is the counter bore, all be provided with connecting piece 4 in every mounting hole 311, connecting piece 4 adopts the bolt, the outer rampart of connecting piece 4 and the cell wall of first drainage groove 321 are laminated each other.

Referring to fig. 1 and 2, the mounting hole 311 is communicated with the first liquid discharge groove 321, the first liquid discharge groove 321 can avoid the connecting piece 4, so that the overall structure of the device is more compact, and meanwhile, the connecting piece 4 is arranged to facilitate the assembly of the tip body 1 and the device.

The implementation principle of the embodiment of the application is as follows: the center body 1 and the device are fixed, the cutting part 2 is inserted into the center hole, the trimming edge 221 is attached to the hole wall of the center hole, and the workpiece is driven to rotate at a high speed through equipment, so that the trimming edge 221 can cut and finish the hole wall of the center hole.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A grinding machine tip characterized by: the center comprises a center body (1), wherein an oil groove (22) is formed in the center body (1), a burnishing edge (221) is arranged at the edge of the oil groove (22), and the burnishing edge (221) is in contact with the wall of a center hole of a workpiece.

2. A grinding machine tip as claimed in claim 1, wherein: the oil groove (22) is provided with a plurality of oil grooves (22), and the plurality of oil grooves (22) are uniformly arranged along the circumferential direction of the tip body (1).

3. A grinding machine tip as claimed in claim 2, wherein: the tip body (1) comprises a cutting part (2) and a supporting part (3), the cutting part (2) is made of hard alloy, and the cutting part (2) is fixedly connected with the supporting part (3).

4. A grinding machine tip as claimed in claim 3, wherein: the cutting part (2) is provided with a positioning column (21) coaxial with the cutting part (2), the supporting part (3) is provided with a positioning hole (331) coaxial with the supporting part (3), and the positioning column (21) is in plug-in fit with the positioning hole (331).

5. A grinding machine tip as claimed in claim 4, wherein: a plurality of first liquid discharging grooves (321) are uniformly formed in the supporting portion (3), and at least one first liquid discharging groove (321) is communicated with the oil groove (22).

6. A grinding machine tip as claimed in claim 5, wherein: the supporting part (3) is provided with a second liquid discharging groove (322), and the first liquid discharging groove (321) is communicated with the second liquid discharging groove (322).

7. A grinding machine tip as claimed in claim 6, wherein: a plurality of mounting holes (311) are formed in the supporting portion (3), connecting pieces (4) are arranged in the mounting holes (311), and the mounting holes (311) are communicated with the first liquid discharging groove (321).

8. A grinding machine tip as claimed in claim 7, wherein: the groove wall of the first liquid discharge groove (321) is an arc surface, and the outer ring wall of the connecting piece (4) is attached to the groove wall of the first liquid discharge groove (321).

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