CN115301979B - Piston pin drilling tool - Google Patents
Piston pin drilling tool Download PDFInfo
- Publication number
- CN115301979B CN115301979B CN202210882275.7A CN202210882275A CN115301979B CN 115301979 B CN115301979 B CN 115301979B CN 202210882275 A CN202210882275 A CN 202210882275A CN 115301979 B CN115301979 B CN 115301979B
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- CN
- China
- Prior art keywords
- pin
- gland
- left end
- piston pin
- plate
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
Abstract
The invention provides a piston pin drilling tool which comprises a V-shaped supporting component, a gland component, a workpiece positioning pin, a die supporting plate and a die plate seat, wherein the V-shaped supporting component is arranged on the die supporting plate; the piston pin is placed on the V-shaped supporting component, and the gland component and the workpiece positioning pin are matched and positioned on the V-shaped supporting component; the die supporting plate is matched with the gland assembly through a shaft pin and is connected with the die plate seat through a rotating shaft; the template seat is provided with a plurality of drill sleeves which are arranged in a straight line, and when the drilling tool works, the piston pin is drilled through the drill sleeves. By adopting the tool, the working procedures of scribing, proofing, punching nest and the like during drilling are omitted, and the problem of low production efficiency is solved. The drilling work of 80 piston pins can be processed per shift by using the tool, and the production cost is reduced. Through gland subassembly, work piece locating pin, mould backup pad cooperation, can realize the quick rotational positioning of wrist pin, improve production efficiency.
Description
Technical Field
The invention relates to the technical field of tool fixtures, in particular to a piston pin drilling tool.
Background
In the industry of ship manufacture, the engine is provided with a part called a piston pin, which is a cylindrical pin arranged on the piston group part, and the middle part of the pin penetrates through a small end hole of a connecting rod to be used for connecting the piston and the connecting rod, so that the gas acting force born by the piston is transmitted to the connecting rod through the piston pin. As shown in fig. 1 and 2, a piston pin of a certain type of engine is shown. The three buses of the piston pin are respectively provided with three holes for enabling the piston pin and the connecting rod to be sufficiently lubricated through lubricating oil. How to machine these 9 holes quickly is the first problem to be solved.
In the prior art, when the piston pin is used for processing 9 holes, the processes of scribing, proofing, punching and drilling are adopted. By adopting the process for processing, only 10 pieces can be produced per shift, the production efficiency is very low, and the process has no competitiveness.
Disclosure of Invention
The invention provides a piston pin drilling tool which is used for solving the problem of low production efficiency in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a piston pin drilling tool, which comprises a V-shaped supporting component, a gland component, a workpiece positioning pin, a die supporting plate and a template seat;
the piston pin is placed on the V-shaped supporting component, and the gland component and the workpiece positioning pin are matched and positioned on the V-shaped supporting component;
the die supporting plate is matched with the gland assembly through a shaft pin and is connected with the die plate seat through a rotating shaft;
the template seat is provided with a plurality of drill sleeves which are arranged in a straight line, and when the drilling tool works, the piston pin is drilled through the drill sleeves.
Further, the V-shaped supporting component comprises a bottom plate and pressing strips, two pressing strips are arranged on the bottom plate, and the pressing strips and the bottom plate form the V-shaped supporting component for supporting the piston pin.
Further, the gland assembly comprises a left end gland, a right end gland, a short stud, a long stud, a handle and an opening gasket;
the die supporting plate is tightly attached to the left end pressing cover, a hole for connecting the short stud is formed in the middle of the die supporting plate, and the right end of the short stud is screwed into a threaded hole formed in the center of the left end pressing cover;
one end of the handle is fixed with the die supporting plate, and the other end of the handle is provided with an opening gasket which is screwed and fixed by a nut;
the left end of the long stud bolt penetrates through the center hole of the piston pin and then is screwed into the left end gland threaded hole, and the right end of the long stud bolt is connected with the right end gland, the handle, the opening gasket and the nut;
the left end gland and the right end cover plate are clamped at two ends of the piston pin.
Further, the left end gland is circular plate-shaped, a threaded hole is formed in the center of the left end gland, a plurality of positioning holes are formed in the left end gland, a plurality of positioning notches for indexing and positioning are formed in the circumferential direction of the outer circle, and at least one positioning notch is matched with the workpiece positioning pin for positioning.
Further, a convex navel is arranged on one end face of the left end gland, and the convex navel is matched and positioned with the left end of the central hole of the piston pin.
Further, a through hole is formed in the center of the die supporting plate, at least two pin holes matched with the positioning holes in the left end pressing cover are formed in the die supporting plate, and the pin holes are matched with the positioning holes through shaft pins; the shaft pin is fixed in the pin hole and the positioning hole through a set screw.
Further, a convex navel is arranged on one end face of the right end gland, and the convex navel is matched and positioned with the right end of the central hole of the piston pin.
Further, a reinforcing seat is fixed on the side surface of the top of the die supporting plate, and the reinforcing seat is fixed with the die plate seat through a taper pin.
Further, the drill bushing is fixed in the template seat in an auxiliary mode through screws.
Further, one of the pressing strips is fixed on the bottom plate through bolts, and the other pressing strip is fixed on the bottom plate through taper pins.
The effects provided in the summary of the invention are merely effects of embodiments, not all effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
1. by adopting the tool, the working procedures of scribing, proofing, punching nest and the like during drilling are omitted, and the problem of low production efficiency is solved. The drilling work of 80 piston pins can be processed per shift by using the tool, and the production cost is reduced.
2. Through gland subassembly, work piece locating pin, mould backup pad cooperation, can realize the quick rotational positioning of wrist pin, improve production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is an axial cross-sectional view of a piston pin.
Fig. 2 is a radial cross-sectional view of the wrist pin.
Fig. 3 is a view showing the overall structure of the present invention.
Fig. 4 is a left side view (partially cut away) of the present invention.
Fig. 5 is a partial enlarged view of a in fig. 3.
Fig. 6 is a partial enlarged view of B in fig. 3.
Fig. 7 is a top view of the V-shaped support member.
Fig. 8 is a stepped cross-sectional view of fig. 7.
Fig. 9 is a top view of the molding.
Fig. 10 is a sectional view of the molding.
Fig. 11 is a structural view of the connection of the mold support plate and the reinforcing plate.
Fig. 12 is a left side view of fig. 11.
Fig. 13 is a left side view of the left end gland.
Fig. 14 is a cross-sectional view of the left end gland.
Fig. 15 is a structural view of a short stud bolt.
Fig. 16 is a structural view of a long stud bolt.
Fig. 17 is a left side view of the right end gland.
Fig. 18 is a half cross-sectional view of the right end gland.
Fig. 19 is a structural view of the template holder.
Fig. 20 is a top view of the drill sleeve.
Fig. 21 is a cross-sectional view of the drill bit.
Fig. 22 is a structural view of the handle.
Fig. 23 is a structural view of the taper pin.
Fig. 24 is a structural view of the workpiece positioning pin.
01. A positioning pin; 02. a bottom plate; 03. a workpiece positioning pin; 04. pressing strips; 05. a short stud; 06. an opening gasket; 07. a handle; 08. a mold support plate; 09. a shaft pin; 10. a reinforcing seat; 11. a rotating shaft; 12. a left end gland; 13. a template seat; 14. a long stud; 15. a drill sleeve; 16. a right end gland; 17. a set screw; 18. a screw; 19. a piston pin; a 20 nut; 21 taper pins; a 22 conical pin; 23 countersunk bolts; 24 positioning holes, 25 positioning openings and 26 convex umbilicus.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present invention.
The piston pin drilling tool comprises a V-shaped supporting component, a gland component, a workpiece positioning pin, a die supporting plate 08 and a template seat 13.
As shown in fig. 3 and 4, specifically, a piston pin 19 is placed on the V-shaped support assembly, and the gland assembly is positioned on the V-shaped support assembly in cooperation with the workpiece positioning pin. Two pressing strips are arranged on the bottom plate, and the pressing strips and the bottom plate form a V-shaped supporting component for supporting the piston pin 19.
As shown in fig. 7 and 8, the V-shaped support assembly comprises a bottom plate 02 and a pressing bar 04, wherein the bottom plate 02 is a long flat plate, and a hole for installing a positioning pin 01 and a hole for installing a workpiece positioning pin 03 (fig. 24) are formed in the center position of the bottom plate 02. At least one row of threaded holes for installing the pressing strips 04 are correspondingly arranged on the front side or the rear side of the bottom plate 02, at least one pressing strip 04 is installed on the bottom plate 02 through bolts, and the pressing strip 04 on the other side is installed on the bottom plate 02 through bolts or taper pins 22. For example, the first installation mode: the back side of the bottom plate 02 is provided with a row of threaded holes, the front side of the bottom plate 02 is provided with a row of taper holes, one pressing strip 04 is arranged on the bottom plate 02 through a bolt matched threaded hole, and the other pressing strip 04 is arranged on the bottom plate 02 through a taper pin 22. In the second installation mode, threaded holes are formed in the front side and the rear side of the bottom plate 02, and then two pressing strips 04 can be installed through bolt holes. The first mounting mode of the batten strip 04 is quicker to mount and dismount relative to the second mounting mode. Corresponding to the first installation mode, a stepped hole for installing a bolt is formed in one pressing strip 04 at a position corresponding to a threaded hole in the bottom plate 02, and a countersunk bolt 23 is buried in the stepped hole; the other pressing strip 04 is provided with a taper hole for installing a taper pin 22 corresponding to the taper hole on the bottom plate 02. Corresponding to the second installation mode, stepped holes for installing bolts are formed in positions, corresponding to threaded holes in the bottom plate 02, of the two pressing strips 04, and countersunk bolts 23 are buried in the stepped holes.
As shown in fig. 9 and 10, one surface of the bead 04 is an inclined surface, and after the two beads 04 are mounted on the bottom plate 02, the two inclined surfaces are opposed to each other to form a V-shaped support system for supporting the piston pin 19.
As shown in fig. 11 and 12, the die support plate 08 is engaged with the capping assembly through a shaft pin 09 and connected with the die plate holder 13 through a rotation shaft 11. The gland assembly includes a left end gland 12, a right end gland 16, a short stud 05, a long stud 14, a handle 07 and a split washer 06. The die supporting plate 08 is a long strip plate which is tightly attached to the outer side (left side) of the left end gland 12, and a hole for connecting the short stud is formed in the middle of the die supporting plate 08, the hole is a through hole, and the short stud 05 passes through the through hole. The right end of the short stud is screwed into a threaded hole formed in the center of the left end press cover 12 after passing through the die supporting plate 08. The left end of the short stud 05 passes through the die supporting plate 08 and the handle 07 and is then screwed and fixed by the nut 20 and the split washer 06.
The right end of the handle 07 is welded to the die supporting plate 08, and the other end of the handle 07 is screwed and fastened to the left end of the short stud 05 (fig. 15) by a nut 20 and a split washer 06. That is, the handle 07 is fixed integrally with the mold support plate 08 while tightly abutting against the left side face of the left end press cover 12 by the nut 20 and the short stud 05 fitted with the split washer 06.
As shown in fig. 13 and 14, the left end gland 12 has a circular plate shape, and a threaded hole is formed in the center of the left end gland 12, and the threaded hole is used for connecting the right end of the end stud bolt and the left end of the long stud bolt 14 (fig. 16). The left end gland 12 is provided with a plurality of positioning holes 24 matched with the die supporting plate 08; the center of the die supporting plate 08 is provided with a through hole, the die supporting plate 08 is provided with two pin holes matched with the positioning holes 24 on the left end gland 12, and the pin holes on the die supporting plate 08 are aligned with the positioning holes 24 on the left end gland 12 and then inserted into the shaft pins 09. The shaft pin 09 is fixed in the pin hole and the positioning hole 24 by a set screw 17.
The left end gland 12 is provided with a plurality of positioning notches 25 for indexing and positioning along the circumferential direction of the outer circle, and the number of the social positioning notches 25 and the included angle between two adjacent positioning notches 25 are required according to the processing requirements of the processed workpiece, namely the hole of the piston pin 19. In specific use, at least one of the positioning notches 25 is positioned in cooperation with the workpiece positioning pin. The bottom of the workpiece locating pin is arranged on the bottom plate 02, and the top of the workpiece locating pin is matched with the locating notch 25 to locate the left end gland 12.
A boss 26 is provided on one end face of the left end gland 12, and the boss 26 is positioned in cooperation with the left end of the central hole of the piston pin 19, with a small gap therebetween.
The left end of the long stud bolt 14 passes through the center hole of the piston pin 19 and is screwed into the threaded hole of the left end gland 12, and the right end of the long stud bolt 14 is connected with the right end gland 16, the handle 07 (fig. 22), the opening washer 06 and the nut.
As shown in fig. 17 and 18, the right end gland 16 also has a boss 26, and the boss 26 is positioned in cooperation with the right end of the central bore of the piston pin 19 with a small gap therebetween. The center of the right end gland 16 is provided with a through hole for passing through the long stud 14. The same right-hand gland 16 is screwed down against the right-hand face of the piston pin 19 by means of the handle 07, the split washer 06 and the nut. This results in an arrangement in which the left end press cap 12 and the right end cap plate are clamped at both ends of the piston pin 19. The right-hand component of the long stud 14 is a wrist pin 19 which is held together by the left-hand press cap 12 before drilling. After all the left and right side accessories are installed, the piston pin 19 can be placed on the V-shaped supporting component to wait for drilling.
As shown in fig. 19, the template base 13 is in a long strip shape, on which a plurality of drill bushings 15 (fig. 20 and 21) are mounted in a straight line, and the drill bushings 15 are fixed in the template base 13 with assistance of screws 18. That is, the screw 18 compresses the drill bushing 15 (fig. 6), ensuring that it is securely mounted within the template holder 13.
In operation, the drilling tool drills a piston pin 19 through the drill sleeve 15. Which is mounted on a mold support plate 08, the mold support plate 08 being connected to a mold plate holder 13 through a rotation shaft 11. When in use, the template seat 13 is positioned above the piston pin 19, and the installation position of the drill bushing 15 corresponds to the position of a hole to be machined on the piston pin 19.
For stability, a reinforcing seat 10 is fixed to the top side of the mold support plate 08, and the reinforcing seat 10 is fixed to the mold plate seat 13 by means of a taper pin 21 (fig. 23) (fig. 5). The reinforcing seat 10 can be welded on the left side surface of the top of the die supporting plate 08, taper holes are formed in the reinforcing seat 10 and the die plate seat 13, and taper pins 21 are inserted into the taper holes to connect the reinforcing seat 10 and the die plate seat 13, so that the die plate seat is convenient to install and detach.
Working principle:
the bottom plate 02 is fixed on a drilling machine workbench, the positioning pins and the drilling machine trapezoid grooves can be used for positioning, the piston pin 19 is fixed by the left end press cover 12, the long stud 14, the short stud 05, the handle 07, the nut, the die supporting plate 08, the template seat 13 and the like, three holes of the same bus of the piston pin 19 are drilled on the V-shaped supporting component, after drilling is finished, the nut at the left end of the left end press cover 12 is loosened, the split washer 06 is pulled out, the die supporting plate 08 is pulled out, the shaft pin 09 is taken out, the die supporting plate 08, the handle 07 and the shaft pin 120 degrees are rotated, the shaft pin 09 on the die supporting plate 08 is inserted into the other two positioning holes 24 of the left end press cover 12 again, 120 degrees are spaced from the last positioning hole 24, the split washer 06 is in place, the nut is screwed, the handle 07 is held by the left hand and the right hand, the workpiece positioning pin is separated from the opening on the outer circle of the left end press cover 12, the piston pin 19 is moved left after rotating 120 degrees, the workpiece positioning pin is inserted into the opening on the outer circle of the left end 12 until the opening is consistent in left and right position. Drilling of three holes of the other upper generatrix of the piston pin 19 continues to be completed. The above-described operation is repeated in this way until all the holes in the piston pin 19 have been drilled, the nuts on the right-hand grip 07 are loosened, the split washer 06 and the right-hand press cover 16 are removed, the left-hand grip 07 is held by the left hand, the parts are pulled out to the left from the center hole of the piston pin 19, the piston pin 19 with the holes drilled is removed, the next piece is replaced, and the above-described operation is repeated.
The tool is applicable to whether three rows of through holes or blind holes are uniformly distributed on the outer circle of the piston pin 19. When four rows of radial holes are distributed on the outer circle of the piston pin 19, the number of the pin holes of the left end pressing cover 12 and the number of the openings on the outer circle are changed into four.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (6)
1. A piston pin drilling tool is characterized by comprising a V-shaped supporting component, a gland component, a workpiece positioning pin, a die supporting plate and a die plate seat;
the piston pin is placed on the V-shaped supporting component, and the gland component and the workpiece positioning pin are matched and positioned on the V-shaped supporting component;
the die supporting plate is matched with the gland assembly through a shaft pin and is connected with the die plate seat through a rotating shaft;
the template seat is provided with a plurality of drill sleeves which are arranged in a straight line, and when the drilling tool works, the drilling tool drills a piston pin through the drill sleeves;
the V-shaped supporting component comprises a bottom plate and pressing strips, wherein two pressing strips are arranged on the bottom plate, and the pressing strips and the bottom plate form a V-shaped supporting component for supporting a piston pin;
the gland assembly comprises a left end gland, a right end gland, a short stud, a long stud, a handle and an opening gasket;
the die supporting plate is tightly attached to the left end pressing cover, a hole for connecting the short stud is formed in the middle of the die supporting plate, and the right end of the short stud is screwed into a threaded hole formed in the center of the left end pressing cover;
one end of the handle is fixed with the die supporting plate, and the other end of the handle is provided with an opening gasket which is screwed and fixed by a nut;
the left end of the long stud bolt penetrates through the center hole of the piston pin and then is screwed into the left end gland threaded hole, and the right end of the long stud bolt is connected with the right end gland, the handle, the opening gasket and the nut;
the left end gland and the right end cover plate are clamped at two ends of the piston pin;
the left end gland is circular plate-shaped, a threaded hole is formed in the center of the left end gland, a plurality of positioning holes are formed in the left end gland, a plurality of positioning openings for indexing and positioning are formed in the circumferential direction of the outer circle, and at least one positioning opening is matched with the workpiece positioning pin for positioning;
one end face of the left end gland is provided with a convex navel, and the convex navel is matched and positioned with the left end of the central hole of the piston pin.
2. The piston pin drilling tool as claimed in claim 1, wherein a through hole is formed in the center of the die supporting plate, at least two pin holes matched with the positioning holes in the left end pressing cover are formed in the die supporting plate, and the pin holes are matched with the positioning holes through shaft pins; the shaft pin is fixed in the pin hole and the positioning hole through a set screw.
3. The piston pin drilling tool of claim 1, wherein a boss is provided on one end face of the right end gland, and the boss is positioned in cooperation with the right end of the central hole of the piston pin.
4. The piston pin drilling tool of claim 1, wherein a reinforcing seat is fixed on the side surface of the top of the mold supporting plate, and the reinforcing seat is fixed with the template seat through a taper pin.
5. The wrist pin drilling tool of claim 1, wherein the drill sleeve is fixed in the template seat with the aid of screws.
6. The wrist pin drilling tool of claim 1, wherein one of the battens is fixed to the base plate by bolts and the other batten is fixed to the base plate by taper pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210882275.7A CN115301979B (en) | 2022-07-25 | 2022-07-25 | Piston pin drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210882275.7A CN115301979B (en) | 2022-07-25 | 2022-07-25 | Piston pin drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115301979A CN115301979A (en) | 2022-11-08 |
| CN115301979B true CN115301979B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210882275.7A Active CN115301979B (en) | 2022-07-25 | 2022-07-25 | Piston pin drilling tool |
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| CN (1) | CN115301979B (en) |
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| CN106166623A (en) * | 2016-09-13 | 2016-11-30 | 安徽工程大学机电学院 | Split plain bearing seat bolt hole processing clamping device |
| CN106624068A (en) * | 2016-12-30 | 2017-05-10 | 苏州市职业大学 | Drill jig with auxiliary supporting device |
| CN107262782A (en) * | 2017-07-27 | 2017-10-20 | 中国航天科技集团公司长征机械厂 | Advanceable cylinder side strip wing boring grab |
| CN107552843A (en) * | 2017-08-25 | 2018-01-09 | 安徽信息工程学院 | Connection rod of automobile engine bush hole, which drills and reams, processes clamping device |
| CN110052875A (en) * | 2019-05-17 | 2019-07-26 | 沈阳航空航天大学 | A kind of indexing drill jig and its application method |
| CN110064779A (en) * | 2019-06-01 | 2019-07-30 | 湖北金力液压件有限公司 | A kind of checking cylinder guide sleeve drilling jig for drilling |
| CN212239309U (en) * | 2020-06-03 | 2020-12-29 | 杭州职业技术学院 | Special device for drilling |
| CN212495464U (en) * | 2020-06-05 | 2021-02-09 | 绵阳通力达精工科技有限公司 | Machine tool clamp |
| CN214443309U (en) * | 2021-01-13 | 2021-10-22 | 安徽工业大学 | Pin-jointed chain bent chain plate drilling clamp |
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| CN115301979A (en) | 2022-11-08 |
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