CN202655668U - Compound tool for machining fisheye hole in prellmechanik - Google Patents
Compound tool for machining fisheye hole in prellmechanik Download PDFInfo
- Publication number
- CN202655668U CN202655668U CN 201220319987 CN201220319987U CN202655668U CN 202655668 U CN202655668 U CN 202655668U CN 201220319987 CN201220319987 CN 201220319987 CN 201220319987 U CN201220319987 U CN 201220319987U CN 202655668 U CN202655668 U CN 202655668U
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- China
- Prior art keywords
- hilt
- pin cutter
- compound tool
- locating slot
- cutter
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Abstract
The utility model relates to a compound tool for machining a fisheye hole in a prellmechanik, comprising a tool holder and a needle knife, wherein the needle knife is axially penetrated in the tool holder, and the head part of the needle knife is penetrated out of the head part of the tool holder; the compound tool also comprises a locking and locating dowel; and one end of the locking and locating dowel is provided with a locating groove, the depth of which is arranged along the axial direction, the tail part of the needle knife is arranged in the locating groove and used for expanding the locating groove, and the locking and locating dowel is screwed in the tail part of the tool holder and is in threaded connection with the tail part of the tool holder. The compound tool has the advantages of simple structure, convenience in installation, good clamping effect and suitability for clamping small needle knives, and belongs to the field of compound tools for machining pianos.
Description
Technical field
The utility model relates to a kind of compound tool for piano processing, specifically, relates to a kind of compound tool for the processing of hammered string instrument fish eyelet.
Background technology
In the hammered string instrument of piano, some part eyelet that need to cure fish is used for the mounted movable parts.As depicted in figs. 1 and 2, being shaped as of fish eyelet a: step cutting pattern of projection is arranged at the middle part of annular shrinkage pool, a small through hole that runs through is arranged at the middle part of step cutting pattern.Fish eyelet has single face and two-sided, and fish eyelet illustrated in figures 1 and 2 is two-sided.
Annular shrinkage pool and step cutting pattern are processed by hilt.Hilt comprises cutter head and is positioned at the cylindrical cutter body of cutter head afterbody, and cutter head is triangular prism shaped, and a side of triangular prism joins with the cylindrical bottom of cutter hub, is the edge of a knife for machining over against the incline of this side.Protrude on the both sides of the edge of a knife, is used for processing annular shrinkage pool, and the intermediate recess of the edge of a knife is used for the processing step cutting pattern.Hilt rotates around the axis of cutter hub, and to the workpiece feed, can finish the annular shrinkage pool of fish eyelet and the processing of step cutting pattern.Hilt is divided into left-handed cutter and dextrorotation cutter.For left-handed cutter, clockwise rotate processing, the sharp face of the edge of a knife is on the right; For the dextrorotation cutter, rotate counterclockwise processing, sharp on the left side of the edge of a knife.
Small through hole is processed by the pin cutter.Axis place at hilt reserves the cavity volume of placing the pin cutter, and when the pin cutter was locked in the hilt, the head of pin cutter stretched out from the edge of a knife (being the head of hilt), and the pin cutter can be finished the processing of the small through hole of fish eyelet synchronously with hilt rotation and feed.
Two-sided fish eyelet illustrated in figures 1 and 2, the two sides processes respectively, and wherein one side adopts the compound tool hilt of pin cutter (namely with) to process, and another side adopts hilt to process.
The existing structure that the pin cutter is locked on the hilt is: the side at hilt screws in screw, and the side of pin cutter is withstood in the end of screw, locks by the side pressure, prevents that the pin cutter shaft is to mobile or side rocking.There is following shortcoming in the compound tool of this locking mechanism: the clamping effect is bad, can't be used for diameter less than the clamping of 1.5 millimeters small-sized pin cutter.When small-sized pin cutter can't clamping, can only process step by step, process annular shrinkage pool and step cutting pattern with hilt first, again with pin cutter processing small through hole, complex steps, inefficiency.
The utility model content
For the technical problem that exists in the prior art, the purpose of this utility model is: provide a kind of simple in structure, and good clamping effect, and be applicable to the compound tool that is used for the processing of hammered string instrument fish eyelet that small-sized pin cutter holder is held.
In order to achieve the above object, the utility model adopts following technical scheme:
Be used for the compound tool of hammered string instrument fish eyelet processing, comprise hilt and pin cutter, the pin cutter shaft is to piercing into hilt, and the head of pin cutter passes from the head of hilt; Compound tool also comprises the locking positioning nail; One end of locking positioning nail is provided with the locating slot that the degree of depth arranges along axial direction, and the afterbody of pin cutter is inserted in the locating slot and with locating slot and strutted, and the locking positioning nail screws in the afterbody of hilt and is connected with the tailing screw flight of hilt.After adopting this structure, the afterbody of pin cutter with locating slot to around strut, when the locking positioning nail spins with hilt, the internal thread position of hilt inwardly compresses the external screw thread position of locking positioning nail, and locating slot is compacted to be resetted, thereby locating slot clamps the afterbody of pin cutter again, realize reliable clamping, prevent the pin cutter shaft to mobile or side rocking, good clamping effect realizes that effectively the clamping of thin small needle knife is installed.
The locking positioning nail comprises thread segment and head, and the diameter of head is greater than the diameter of thread segment; The locating slot that is positioned at the thread segment end is in-line, runs through thread segment at width.After adopting this structure, after being threaded, the head of locking positioning nail withstands on the afterbody of hilt, to the installation realization axial location of locking positioning nail.Locating slot runs through into in-line at width, can make locating slot folding on thickness direction, also is convenient to the processing of locating slot simultaneously.
The head of locking positioning nail is provided with cross recess or flat recess.After adopting this structure, can be by screwdriver installation or removal locking positioning nail, mounting or dismounting are convenient, screw effective.
The afterbody of pin cutter is provided with scarf; When the afterbody of pin cutter was inserted locating slot, the length of inserting was larger, and scarf is larger with the amplitude that locating slot struts.After adopting this structure, namely add scarf, so that the undersized of pin cutter tail end play the guiding role, be convenient to the pin cutter and insert locating slot; After inserting, along with the increase of inserting length, scarf struts locating slot along thickness direction; Simultaneously, because the existence of scarf, pin cutter and locking positioning nail improve the clamping effect without circumferentially rotating.
Scarf has two, is positioned at the relative both sides of outer wall of pin cutter.After adopting this structure, insert more convenient, the clamping better effects if.
The diameter of pin cutter is less than or equal to 1.5 millimeters.After adopting this structure, be particularly useful for the clamping of thin small needle knife, and the laterally and tightly propped structure of existing screw can't realize that diameter is less than or equal to the clamping of 1.5 millimeters pin cutter.
Hilt is left-handed cutter, and the screw thread of locking positioning nail is right-handed thread.After adopting this structure, thread rotary orientation is opposite with the hilt rotation direction, and screw connection point is difficult for unclamping when compound tool integral body is left-handed, is convenient to safeguard.
Hilt is the dextrorotation cutter, and the screw thread of locking positioning nail is left hand thread.After adopting this structure, thread rotary orientation is opposite with the hilt rotation direction, and screw connection point is difficult for unclamping when the whole dextrorotation of compound tool, is convenient to safeguard.
A kind of installation method of the compound tool for hammered string instrument fish eyelet processing, it comprises the steps: that a. inserts the afterbody of pin cutter in the locating slot of locking positioning nail, the afterbody of pin cutter struts locating slot; B. the pin cutter is axially inserted from the afterbody of hilt, the head of pin cutter passes from the head of hilt, and the locking positioning nail is connected with the tailing screw flight of hilt, when being threaded, hilt compresses the locking positioning nail, thereby the locating slot that struts is closed, the afterbody of locating slot clamping needle cutter.After adopting this method, assembling process is simple and convenient, and the good positioning effect of pin cutter.
Among the step a, when the afterbody of pin cutter was inserted the locating slot of in-line, the scarf of the afterbody of pin cutter was over against locating slot, and scarf struts the thickness direction of locating slot along locating slot.After adopting this method, contraposition is simple and convenient; The structure of the locating slot of in-line is particularly useful for and cooperating with the pin cutter of scarf.
Generally speaking, the utlity model has following advantage: simple in structure, easy for installation, good clamping effect, be applicable to the clamping of thin small needle knife.
Description of drawings
Fig. 1 is the top view of parts of eyelet of need curing fish in the hammered string instrument.
Fig. 2 is the front view of Fig. 1, and wherein the dotted line position is fish eyelet.
Fig. 3 is the cutaway view of the front view of compound tool.
Fig. 4 is the upward view of Fig. 3.
Fig. 5 is the front view of pin cutter.
Fig. 6 is the front view of locking positioning nail.
Fig. 7 is the cutaway view that the pin cutter is inserted the cross locating slot.
Fig. 8 is the cutaway view that the pin cutter is inserted the Y-shaped locating slot.
Wherein, 1 is that hilt, 2 is the pin cutter, and 3 are the locking positioning nail, and 11 is cutter head, and 12 is cutter hub, and 21 is scarf, and 31 is head, and 32 is thread segment, and 33 is locating slot.
The specific embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 3 is to shown in Figure 6, and the compound tool that is used for the processing of hammered string instrument fish eyelet comprises hilt 1, pin cutter 2 and locking positioning nail 3.
Hilt 1 comprises cutter head 11 and cutter hub 12.Cutter head 11 is triangular prism shaped, and side and the columniform cutter hub 12 of triangular prism join, over against the incline of this side for being used for the edge of a knife of machining, the namely head of hilt 1.Protrude on the both sides of the edge of a knife, is used for processing annular shrinkage pool, and the intermediate recess of the edge of a knife is used for the processing step cutting pattern.Be provided with the cavity volume of placing pin cutter 2 in the hilt 1, cavity volume axially runs through hilt 1, and the cavity volume shape of the head of close hilt is corresponding with the shape of pin cutter 2, thereby after pin cutter 2 is inserted, do not have too many circumferential space, pin cutter 2 is difficult for vacillating now to the left, now to the right, and also need not again centering; The inwall of the cavity volume of the afterbody of close hilt 1 is provided with internal thread.Hilt shown in Figure 3 is the dextrorotation cutter, and sharp side is at the upside (the two-wire bar part of the edge of a knife) on diagram plane; Accordingly, overleaf, sharp side is then at downside.
The diameter of pin cutter 2 is 1.5 millimeters, and the afterbody of pin cutter 2 is provided with the relative both sides that two scarves, 21, two scarves are positioned at the outer wall of pin cutter, Figure 3 shows that upper and lower both sides.
Locking positioning nail 3 comprises head 31 and thread segment 32.The diameter of head 31 is greater than the diameter of thread segment 32, and the diameter of thread segment 32 ends is more smaller than the diameter at middle part.Have flat recess on the head 31, be convenient to install and remove with straight screwdriver.Thread segment 32 is provided with external screw thread, be left hand thread, thereby the compound tool of dextrorotation adds man-hour herein, and locking positioning nail 3 can not unclamp from hilt 1 and come off.The end of thread segment 32 is provided with the locating slot 33 of in-line.Shown in Figure 6, the depth direction of locating slot 33 is left and right directions, and width is the direction perpendicular to paper, and thickness direction is above-below direction.On width, locating slot 33 runs through thread segment 32.
During installation, the scarf of the afterbody of pin cutter is inserted in the locating slot, scarf is over against the thickness direction of locating slot, and along with the afterbody of pin cutter is inserted deeplyer, scarf is larger with the amplitude that the locating slot of locking positioning nail struts up and down.Subsequently with the pin cutter from the afterbody of hilt along the cavity volume of axially putting into hilt, the head of pin cutter passes from the head of hilt, the locking positioning nail screws in the afterbody of hilt, the afterbody of hilt inwardly clamps thread segment, thereby the locating slot clamping is resetted, the afterbody of thread segment clamping needle cutter is realized reliable clamping.
Except the mode that the present embodiment is mentioned, locating slot can adopt cross shown in Figure 7, also can adopt the structures such as Y-shaped shown in Figure 8, as long as can be when inserting the afterbody of pin cutter, thread segment can slight elasticity distortion and strutting to the periphery, get final product thereby locating slot strutted; Accordingly, the afterbody of pin cutter can adopt taper or truncated cone-shaped etc. to be convenient to the structure that imports and thread segment can be strutted, and is that circumferential locating effect is not as arranging the good of scarf.These mapping modes are all in protection domain of the present utility model.
Claims (8)
1. be used for the compound tool of hammered string instrument fish eyelet processing, comprise hilt and pin cutter, the pin cutter shaft is to piercing into hilt, and the head of pin cutter passes from the head of hilt, it is characterized in that: described compound tool also comprises the locking positioning nail; One end of locking positioning nail is provided with the locating slot that the degree of depth arranges along axial direction, and the afterbody of pin cutter is inserted in the locating slot and with locating slot and strutted, and the locking positioning nail screws in the afterbody of hilt and is connected with the tailing screw flight of hilt.
2. according to the compound tool for the processing of hammered string instrument fish eyelet claimed in claim 1, it is characterized in that: described locking positioning nail comprises thread segment and head, and the diameter of head is greater than the diameter of thread segment; The locating slot that is positioned at the thread segment end is in-line, runs through thread segment at width.
3. according to the compound tool for the processing of hammered string instrument fish eyelet claimed in claim 2, it is characterized in that: the head of described locking positioning nail is provided with cross recess or flat recess.
4. according to the compound tool for the processing of hammered string instrument fish eyelet claimed in claim 2, it is characterized in that: the afterbody of described pin cutter is provided with scarf; When the afterbody of pin cutter was inserted locating slot, the length of inserting was larger, and scarf is larger with the amplitude that locating slot struts.
5. according to the compound tool for the processing of hammered string instrument fish eyelet claimed in claim 4, it is characterized in that: described scarf has two, is positioned at the relative both sides of outer wall of pin cutter.
6. according to the compound tool for the processing of hammered string instrument fish eyelet claimed in claim 1, it is characterized in that: the diameter of described pin cutter is less than or equal to 1.5 millimeters.
7. according to each described compound tool for the processing of hammered string instrument fish eyelet in the claim 1 to 6, it is characterized in that: described hilt is left-handed cutter, and the screw thread of locking positioning nail is right-handed thread.
8. according to each described compound tool for the processing of hammered string instrument fish eyelet in the claim 1 to 6, it is characterized in that: described hilt is the dextrorotation cutter, and the screw thread of locking positioning nail is left hand thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319987 CN202655668U (en) | 2012-07-03 | 2012-07-03 | Compound tool for machining fisheye hole in prellmechanik |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319987 CN202655668U (en) | 2012-07-03 | 2012-07-03 | Compound tool for machining fisheye hole in prellmechanik |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655668U true CN202655668U (en) | 2013-01-09 |
Family
ID=47450601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319987 Expired - Lifetime CN202655668U (en) | 2012-07-03 | 2012-07-03 | Compound tool for machining fisheye hole in prellmechanik |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202655668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728863A (en) * | 2012-07-03 | 2012-10-17 | 广州珠江钢琴集团股份有限公司 | Compound tool for processing spot-faced holes in piano string hitting machine and installation method of compound tool |
-
2012
- 2012-07-03 CN CN 201220319987 patent/CN202655668U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728863A (en) * | 2012-07-03 | 2012-10-17 | 广州珠江钢琴集团股份有限公司 | Compound tool for processing spot-faced holes in piano string hitting machine and installation method of compound tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |