CN215999888U - Positioning tool for grinding connecting rod - Google Patents
Positioning tool for grinding connecting rod Download PDFInfo
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- CN215999888U CN215999888U CN202122194110.4U CN202122194110U CN215999888U CN 215999888 U CN215999888 U CN 215999888U CN 202122194110 U CN202122194110 U CN 202122194110U CN 215999888 U CN215999888 U CN 215999888U
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- connecting rod
- hole
- positioning mechanism
- positioning
- grinding
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Abstract
The utility model discloses a location frock of connecting rod grinding, include with lathe complex transition seat, still include fixed plate, supporting seat, reference column, apply axial force's first positioning mechanism, to the global second positioning mechanism who applys radial effort of connecting rod one end to connecting rod one end, the fixed plate is fixed with transition seat, is equipped with the pilot hole at the middle part of fixed plate, the one end and the pilot hole cooperation of supporting seat, the one end and the fixed plate of reference column are fixed, the other end of reference column be with connecting rod other end hole complex free end, first positioning mechanism and second positioning mechanism set up the outside at the supporting seat respectively. The utility model has the advantages of promote positioning accuracy.
Description
Technical Field
The utility model relates to a location frock of connecting rod grinding.
Background
The crankshaft connecting rod is an important part on an engine, is one of the most typical and important parts in the engine, has the functions of converting gas pressure transmitted by a piston connecting rod into torque, serving as power to output and do work, drives other working mechanisms and drives auxiliary equipment of the internal combustion engine to work, is made of carbon structural steel or nodular cast iron, and has two important parts: the main journal, the connecting rod neck (still others), the main journal is installed on the cylinder body, the connecting rod neck is connected with the big end hole of the connecting rod, the small end hole of the connecting rod is connected with the cylinder piston, a typical crank connecting rod slider mechanism is provided, although the variety of the crankshaft connecting rod is more, the structure is different in some details, but the processing technique process is roughly the same, such as end face punching, blank on-line detection, cleaning, heat treatment, off-line detection, dynamic balance, polishing and other processing procedures, wherein polishing or grinding is called, the precision of the crankshaft connecting rod during grinding is generally very high, during grinding, in order to ensure the grinding precision, the crankshaft connecting rod is firstly positioned in a targeted manner, and the positioning precision of the existing positioning device is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can promote positioning accuracy's location frock of connecting rod grinding.
The positioning tool for grinding the connecting rod comprises a transition seat matched with a machine tool, and further comprises a fixed plate, a supporting seat, a positioning column, a first positioning mechanism applying axial force to one end of the connecting rod, and a second positioning mechanism applying radial acting force to the circumferential surface of one end of the connecting rod, wherein the fixed plate is fixed with the transition seat, an assembly hole is formed in the middle of the fixed plate, one end of the supporting seat is matched with the assembly hole, one end of the positioning column is fixed with the fixed plate, the other end of the positioning column is a free end matched with an inner hole of the other end of the connecting rod, and the first positioning mechanism and the second positioning mechanism are arranged on the outer side of the supporting seat respectively.
Further, the supporting seat comprises a supporting seat body, a conical positioning portion and a supporting portion for supporting the axial end face of one end of the connecting rod, the conical positioning portion is arranged at one end of the supporting seat body and matched with the assembling hole, the assembling hole is a conical hole, and the supporting portion is arranged at the other end of the supporting seat body.
Furthermore, the first positioning mechanism comprises a first stud, a first pressing plate with a first hole, a first nut and a first supporting rod, one end of the first stud is fixed with the fixing plate, the first pressing plate is sleeved on the first stud through the first hole, the first nut is in threaded connection with the other end of the first stud, and one end of the first pressing plate is matched with the first supporting rod.
Furthermore, the first positioning mechanism further comprises a spring, the spring is sleeved on the first stud, one end of the spring abuts against the first pressing plate, and the other end of the spring abuts against the fixing plate or the first stud.
Further, be equipped with the spout on the first clamp plate, first bracing piece and spout cooperation, the pilot hole is bar hole or waist shape hole, be equipped with the bellying on first clamp plate and the connecting rod complex terminal surface.
Further, the second positioning mechanism comprises a mounting seat, a movable block and a linear actuator, a guide groove is formed in the mounting seat, the movable block is in clearance fit with the guide groove, a fit groove matched with the peripheral surface of the connecting rod is formed in one end of the movable block, and the other end of the movable block) is connected with the linear actuator.
The utility model discloses in, before carrying out the grinding to the connecting rod, with the one end and the supporting seat cooperation of connecting rod, make the hole and the reference column cooperation of the connecting rod other end, the position of connecting rod obtains tentatively fixing a position like this. Then, the first positioning mechanism applies axial acting force to the axial end face of the connecting rod, so that the connecting rod is tightly pressed between the first positioning mechanism and the support. And finally, applying a thrust action to the circumferential surface of one end of the connecting rod through the second positioning mechanism to enable the connecting rod to be positioned between the positioning column and the second positioning mechanism. Through the operation, no matter make the connecting rod all obtain the location in axial direction still radially, avoided the connecting rod at grinding in-process displacement, thereby the utility model discloses submit and promoted positioning accuracy.
Drawings
FIG. 1 is a perspective view of a positioning tool for grinding a connecting rod;
FIG. 2 is a schematic view of FIG. 1 with parts hidden;
FIG. 3 is a perspective view of the support base;
FIG. 4 is a schematic view of a first platen;
reference numbers in the drawings:
the device comprises a connecting rod A, a transition seat 1, a fixing plate 2, a supporting seat 3, a supporting seat body 3a, a conical positioning portion 3b, a supporting portion 3c, a positioning column 4, a first stud 5, a first pressing plate 6, a first hole 6a, a sliding groove 6b, a protruding portion 6c, a first nut 7, a first supporting rod 8, a spring 9, an installation seat 10, a movable block 11, a matching groove 11a and a linear actuator 12.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4 and the specific embodiments.
The utility model discloses a location frock of connecting rod grinding includes the base, include with lathe complex transition seat 1, still include fixed plate 2, supporting seat 3, reference column 4, apply axial force's first positioning mechanism, to the global second positioning mechanism who applys radial effort of connecting rod A one end to connecting rod A one end, fixed plate 2 is fixed with transition seat 1, is equipped with the pilot hole at the middle part of fixed plate 2, the one end and the pilot hole cooperation of supporting seat 3, reference column 4's one end is fixed with fixed plate 2, reference column 4's the other end be with connecting rod other end hole complex free end, first positioning mechanism and second positioning mechanism set up the outside at supporting seat 3 respectively.
The utility model discloses in, before carrying out the grinding to connecting rod A, with connecting rod A's one end and the cooperation of supporting seat 3, make the hole of the connecting rod A other end and the cooperation of reference column 4, connecting rod A's position obtains tentatively fixing a position like this. Then, the first positioning mechanism applies axial acting force to the axial end face of the connecting rod A, so that the connecting rod A is tightly pressed between the first positioning mechanism and the support 3. Finally, the second positioning mechanism applies a thrust action to the circumferential surface of one end of the connecting rod A, so that the connecting rod A is positioned between the positioning column 4 and the second positioning mechanism. Through the operation, the connecting rod A is positioned in the axial direction or the radial direction, and the displacement of the connecting rod A in the grinding process is avoided.
The supporting seat 3 comprises a supporting seat body 3a, a conical positioning portion 3b and a supporting portion 3c for supporting the axial end face of one end of the connecting rod, a through hole is formed in the supporting seat 3, the through hole penetrates through the supporting seat body 3a and the conical positioning portion 3b, a screw penetrates through the through hole, and the supporting seat 3 and the fixing plate 2 are fastened into a whole. Toper location portion 3b sets up the one end at supporting seat body 3a, toper location portion 3b and pilot hole cooperation, the pilot hole is the taper hole, and supporting part 3c sets up the other end at supporting seat body 3 a. The number of the support portions 3c is 3, and the support portions 3c are arranged at intervals along the same circumference. In this embodiment, adopt toper location portion 3b and pilot hole cooperation, be favorable to improving the cooperation precision of supporting seat 3 and fixed plate 2.
The first positioning mechanism comprises a first stud 5, a first pressing plate 6 with a first hole 6a, a first nut 7 and a first supporting rod 8, one end of the first stud 5 is fixed with the fixing plate 2, the first pressing plate 6 is sleeved on the first stud 5 through the first hole 5a, the first nut 7 is in threaded connection with the other end of the first stud 5, and one end of the first pressing plate 6 is matched with the first supporting rod 8.
When needing first positioning mechanism to produce pressure to connecting rod A's axial terminal surface, with the axial terminal surface cooperation of first clamp plate 6 with connecting rod A, rotatory first nut 7 makes first nut 7 to first clamp plate 6 formation pressure, because the one end of first clamp plate 6 is passed through first bracing piece 8 and is supported, and first nut 7 is located the other end of first clamp plate 6, consequently, the pressure effect of first nut 7 transmits connecting rod A's axial terminal surface through first clamp plate 6.
The first positioning mechanism further comprises a spring 9, the spring 9 is sleeved on the first stud 5, one end of the spring 9 abuts against the first pressing plate 6, and the other end of the spring 9 abuts against the fixing plate 2 or the first stud 5. The first pressing plate 6 is supported on one hand by the supporting action of the spring 9, and the first pressing plate 6 can better generate pressure on the connecting rod A in the process of pressing the connecting rod A by the first pressing plate 6.
Be equipped with spout 6b on the first clamp plate 6, first bracing piece 8 and the cooperation of spout 6b, the pilot hole is bar hole or waist shape hole, be equipped with bellying 6c on first clamp plate 6 and the connecting rod complex terminal surface. When the outer diameters of the ends of different connecting rods a are different, the first pressing plate 6 is moved to adjust the position where the sliding groove 6b is matched with the first supporting rod 8, so that the protruding portion 6c on the first pressing plate 6 is pressed on the connecting rod a.
The second positioning mechanism comprises a mounting seat 10, a movable block 11 and a linear actuator 12, a guide groove is formed in the mounting seat 10, the movable block 11 is in clearance fit with the guide groove, a matching groove 11a matched with the periphery of the connecting rod is formed in one end of the movable block 11, and the other end of the movable block 11 is connected with the linear actuator 12. The matching groove 11a is in a V shape, the linear actuator 12 can adopt an air cylinder, a hydraulic cylinder and an electric screw rod, and the linear actuator 12 in the embodiment preferentially adopts an air cylinder. When the linear actuator 12 works, the piston rod of the linear actuator 12 extends out to push the movable block 11 to move along the guide groove on the mounting seat 10, so that the wall surface of the matching groove 11a is abutted against the peripheral surface of the connecting rod a, and the connecting rod a is clamped between the movable block 11 and the positioning column 4.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit the technical solution, and the patent scope of the present invention is not limited; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; in addition, will the technical scheme of the utility model direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses an in the patent protection scope.
Claims (6)
1. Positioning tool of connecting rod grinding, include with lathe complex transition seat (1), its characterized in that still includes fixed plate (2), supporting seat (3), reference column (4), apply axial force's first positioning mechanism, apply the second positioning mechanism of radial effort to global of connecting rod one end to connecting rod one end, fixed plate (2) are fixed with transition seat (1), are equipped with the pilot hole at the middle part of fixed plate (2), the one end and the pilot hole cooperation of supporting seat (3), the one end and fixed plate (2) of reference column (4) are fixed, the other end of reference column (4) be with connecting rod other end hole complex free end, first positioning mechanism and second positioning mechanism set up respectively in the outside of supporting seat (3).
2. The connecting rod grinding positioning tool according to claim 1, wherein the support seat (3) comprises a support seat body (3a), a conical positioning portion (3b), and a support portion (3c) for supporting an axial end face of one end of the connecting rod, the conical positioning portion (3b) is arranged at one end of the support seat body (3a), the conical positioning portion (3b) is matched with an assembly hole, the assembly hole is a conical hole, and the support portion (3c) is arranged at the other end of the support seat body (3 a).
3. The positioning tool for grinding the connecting rod according to claim 1, wherein the first positioning mechanism comprises a first stud (5), a first pressing plate (6) with a first hole (6a), a first nut (7) and a first supporting rod (8), one end of the first stud (5) is fixed to the fixing plate (2), the first pressing plate (6) is sleeved on the first stud (5) through the first hole (6a), the first nut (7) is in threaded connection with the other end of the first stud (5), and one end of the first pressing plate (6) is matched with the first supporting rod (8).
4. The positioning tool for grinding the connecting rod according to claim 3, wherein the first positioning mechanism further comprises a spring (9), the spring (9) is sleeved on the first stud (5), one end of the spring (9) abuts against the first pressing plate (6), and the other end of the spring (9) abuts against the fixing plate (2) or the first stud (5).
5. The connecting rod grinding positioning tool according to claim 3, wherein a sliding groove (6b) is formed in the first pressing plate (6), the first supporting rod (8) is matched with the sliding groove (6b), the assembling hole is a strip-shaped hole or a waist-shaped hole, and a protruding portion (6c) is formed in the end face, matched with the connecting rod, of the first pressing plate (6).
6. The positioning tool for grinding the connecting rod according to claim 1, wherein the second positioning mechanism comprises an installation seat (10), a movable block (11) and a linear actuator (12), a guide groove is formed in the installation seat (10), the movable block (11) is in clearance fit with the guide groove, a fit groove (11a) matched with the peripheral surface of the connecting rod is formed in one end of the movable block (11), and the other end of the movable block (11) is connected with the linear actuator (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122194110.4U CN215999888U (en) | 2021-09-11 | 2021-09-11 | Positioning tool for grinding connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122194110.4U CN215999888U (en) | 2021-09-11 | 2021-09-11 | Positioning tool for grinding connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215999888U true CN215999888U (en) | 2022-03-11 |
Family
ID=80592517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122194110.4U Active CN215999888U (en) | 2021-09-11 | 2021-09-11 | Positioning tool for grinding connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215999888U (en) |
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2021
- 2021-09-11 CN CN202122194110.4U patent/CN215999888U/en active Active
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