CN211804190U - Connecting rod cracking tool based on diesel engine prototype manufacturing process - Google Patents
Connecting rod cracking tool based on diesel engine prototype manufacturing process Download PDFInfo
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- CN211804190U CN211804190U CN202020016666.7U CN202020016666U CN211804190U CN 211804190 U CN211804190 U CN 211804190U CN 202020016666 U CN202020016666 U CN 202020016666U CN 211804190 U CN211804190 U CN 211804190U
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Abstract
The utility model relates to the technical field of diesel engine manufacturing, and discloses a connecting rod cracking tool based on a diesel engine prototype manufacturing process, which comprises a fixed bottom plate, wherein a sliding bottom plate is connected to the fixed bottom plate in a sliding manner, the lower part of the sliding bottom plate is pressed on a first positioning pin, the first positioning pin is fixed on the fixed bottom plate, a second positioning pin is arranged right above the first positioning pin, and the second positioning pin is fixed on the sliding bottom plate; a T-shaped plate is formed above the sliding bottom plate, two shoulders of the T-shaped plate are respectively pressed against two cams symmetrically arranged left and right, the cams are hinged on cam supporting shafts, and the cam supporting shafts are fixed on the fixed bottom plate; and a handle is fixed on the outer wall of the cam. The connecting rod is broken by the eccentric action of the cam to be divided into a connecting rod body and a cover head; the novel adjustable clamp is simple and reasonable in structure, convenient to use, easy to process and suitable for assembling and using small-batch products.
Description
The technical field is as follows:
the utility model relates to a diesel engine makes technical field, concretely relates to connecting rod rises disconnected frock based on in diesel engine model machine manufacturing process.
Background art:
with the development of connecting rod production technology, the engine connecting rod cracking technology gradually becomes the mainstream technology of industrial processing. The separation of the connecting rod body and the cover does not adopt the traditional cutting processing methods such as cutting, pulling, sawing and the like any more, the whole processing of the cracking technology replaces the split processing, the pre-crack is manufactured by the technologies such as machinery or laser and the like, and the notch is broken by external force during the assembly, thereby achieving an advanced technology of seamless matching. The matching of the connecting rod and the crankshaft of the diesel engine can be ensured to meet the requirements of the assembly process, and the reliability of the whole diesel engine is improved. In the process of trial production of a new product, various assembling tools are required to be matched for use in order to ensure the assembling quality. The original products are the connecting rod body and the cover head which are pre-assembled and disassembled, expansion and breaking tools are not needed, and the cost of the connecting rod expansion and breaking machine for mass production is high, so that the expansion and breaking tool which is suitable for small batches in the trial production stage of new products is urgently needed.
The utility model has the following contents:
the utility model aims to overcome the defects of the prior art and provide a connecting rod cracking tool based on the manufacturing process of a diesel prototype, which divides the connecting rod cracking into a connecting rod body and a cover head through the eccentric action of a cam; the novel adjustable clamp is simple and reasonable in structure, convenient to use, easy to process and suitable for assembling and using small-batch products.
The utility model provides a technical problem's scheme is:
a connecting rod cracking tool based on a diesel engine prototype manufacturing process comprises a fixed bottom plate, wherein a sliding bottom plate is connected to the fixed bottom plate in a sliding mode, the lower portion of the sliding bottom plate is pressed against a first positioning pin, the first positioning pin is fixed to the fixed bottom plate, a second positioning pin is arranged right above the first positioning pin, and the second positioning pin is fixed to the sliding bottom plate;
a T-shaped plate is formed above the sliding bottom plate, two shoulders of the T-shaped plate are respectively pressed against two cams symmetrically arranged left and right, the cams are hinged on cam supporting shafts, and the cam supporting shafts are fixed on the fixed bottom plate; and a handle is fixed on the outer wall of the cam.
The fixed bottom plate is fixed with two linear guide rails which are arranged in the vertical direction, each linear guide rail is connected with two slide blocks which are arranged up and down in a sliding mode, and the sliding bottom plate is fixed on the four slide blocks.
The upper end of the sliding bottom plate is fixedly provided with two guide pins arranged on the left and right, each guide pin is inserted in a corresponding guide sleeve, the guide sleeves are fixed on the mounting plate, and the mounting plate is fixed at the upper end of the fixed bottom plate;
a convex ring is formed on the outer wall of the guide pin, and a pressure spring is clamped between the convex ring and the guide sleeve.
The first positioning pin comprises a small semicircular block and a large semicircular block which are integrally formed and coaxially arranged;
the second positioning pin is a prismatic pin.
And a third positioning pin is arranged above the small semicircular block, the third positioning pin is a semicircular block with the radius consistent with that of the small semicircular block, and the third positioning pin is fixed at the lower end of the sliding bottom plate.
Two cam supporting blocks arranged on the left and right are fixed on the rear side wall of the sliding bottom plate, and the two cams are pressed on the corresponding cam supporting blocks respectively.
The handle comprises a fixed rod fixedly connected with the cam, a screw rod is fixed at the end part of the fixed rod far away from the cam, and a lengthened sleeve is screwed on the screw rod.
The utility model discloses an outstanding effect is:
compared with the prior art, the connecting rod is broken into a connecting rod body and a cover head through the eccentric action of the cam; the novel adjustable clamp is simple and reasonable in structure, convenient to use, easy to process and suitable for assembling and using small-batch products.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a schematic structural view of the hidden portion of the present invention.
The specific implementation mode is as follows:
in an embodiment, as shown in fig. 1 to 3, a connecting rod cracking tool in a manufacturing process based on a diesel prototype comprises a fixed base plate 1, wherein a sliding base plate 2 is connected to the fixed base plate 1 in a sliding manner, the lower part of the sliding base plate 2 is pressed against a first positioning pin 3, the first positioning pin 3 is fixed on the fixed base plate 1, a second positioning pin 4 is arranged right above the first positioning pin 3, and the second positioning pin 4 is fixed on the sliding base plate 2;
a T-shaped plate 201 is formed above the sliding bottom plate 2, two shoulders of the T-shaped plate 201 are respectively pressed against two cams 5 which are symmetrically arranged left and right, the cams 5 are hinged on a cam supporting shaft 6, and the cam supporting shaft 6 is fixed on the fixed bottom plate 1; a handle 7 is fixed on the outer wall of the cam 5.
Furthermore, two linear guide rails 8 arranged in the vertical direction are fixed on the fixed bottom plate 1, two sliding blocks 9 arranged up and down are connected on each linear guide rail 8 in a sliding manner, and the sliding bottom plate 2 is fixed on the four sliding blocks 9.
Furthermore, two guide pins 10 arranged on the left and right are fixed at the upper end of the sliding bottom plate 2, each guide pin 10 is inserted into a corresponding guide sleeve 11, the guide sleeves 11 are fixed on a mounting plate 12, and the mounting plate 12 is fixed at the upper end of the fixed bottom plate 1;
a convex ring 101 is formed on the outer wall of the guide pin 10, and a pressure spring 13 is clamped between the convex ring 101 and the guide sleeve 11.
Furthermore, the first positioning pin 3 comprises a small semicircular block 301 and a large semicircular block 302 which are integrally formed and coaxially arranged;
the second positioning pin 4 is a prismatic pin, so that a piston pin hole of the connecting rod can be conveniently sleeved.
Furthermore, a third positioning pin 14 is disposed above the small semicircular block 301, the third positioning pin 14 is a semicircular block with a radius consistent with that of the small semicircular block 301, and the third positioning pin 14 is fixed at the lower end of the sliding bottom plate 2.
Furthermore, two cam support blocks 15 are fixed on the rear side wall of the sliding bottom plate 2, and the two cams 5 are respectively pressed against the corresponding cam support blocks 15.
Furthermore, the handle 7 comprises a fixing rod 701 fixedly connected with the cam 5, a screw 702 is fixed at the end of the fixing rod 701 far away from the cam 5, and an elongated sleeve 703 is screwed on the screw 702.
The working principle is as follows: firstly, a crankshaft hole of a connecting rod is inserted and sleeved on a cylinder formed by a first locating pin 3 and a second locating pin 14, and a piston pin hole of the connecting rod is inserted and sleeved on a second locating pin 4;
secondly, the arm 7 is rotated by two hands, the handle 7 drives the cam 5 to rotate, the cam 5 drives the sliding bottom plate 2 to move upwards, the sliding bottom plate 2 drives the second positioning pin 2 and the third positioning pin 14 to move upwards, the second positioning pin 2 and the third positioning pin 14 provide an upward force for the connecting rod, and the first positioning pin 3 provides a downward force for the connecting rod relatively, so that the connecting rod is broken;
thirdly, the clamping sleeve 703 is rotated, and the lengthening sleeve 703 can move on the screw 702, so that the length of the handle 7 is changed, the length of the force arm is changed, and labor can be saved when the connecting rod is broken.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides a connecting rod rises disconnected frock based on in diesel engine model machine manufacturing process, includes PMKD (1), its characterized in that: the fixed base plate (1) is connected with a sliding base plate (2) in a sliding mode, the lower portion of the sliding base plate (2) is pressed against a first positioning pin (3), the first positioning pin (3) is fixed on the fixed base plate (1), a second positioning pin (4) is arranged right above the first positioning pin (3), and the second positioning pin (4) is fixed on the sliding base plate (2);
a T-shaped plate (201) is formed above the sliding bottom plate (2), two shoulders of the T-shaped plate (201) are pressed against two cams (5) which are symmetrically arranged left and right respectively, the cams (5) are hinged on a cam supporting shaft (6), and the cam supporting shaft (6) is fixed on the fixed bottom plate (1); a handle (7) is fixed on the outer wall of the cam (5).
2. The connecting rod cracking tool in the diesel engine prototype-based manufacturing process according to claim 1, characterized in that: the fixed base plate (1) is fixed with two linear guide rails (8) arranged in the vertical direction, each linear guide rail (8) is connected with two sliding blocks (9) arranged up and down in a sliding mode, and the sliding base plate (2) is fixed on the four sliding blocks (9).
3. The connecting rod cracking tool in the diesel engine prototype-based manufacturing process according to claim 1, characterized in that: the upper end of the sliding bottom plate (2) is fixedly provided with two guide pins (10) which are arranged left and right, each guide pin (10) is inserted in a corresponding guide sleeve (11), the guide sleeves (11) are fixed on the mounting plate (12), and the mounting plate (12) is fixed at the upper end of the fixed bottom plate (1);
a convex ring (101) is formed on the outer wall of the guide pin (10), and a pressure spring (13) is clamped between the convex ring (101) and the guide sleeve (11).
4. The connecting rod cracking tool in the diesel engine prototype-based manufacturing process according to claim 1, characterized in that: the first positioning pin (3) comprises a small semicircular block (301) and a large semicircular block (302) which are integrally formed and coaxially arranged;
the second positioning pin (4) is a prismatic pin.
5. The connecting rod cracking tool in the diesel engine prototype-based manufacturing process according to claim 4, wherein: and a third positioning pin (14) is arranged above the small semicircular block (301), the third positioning pin (14) is a semicircular block with the radius consistent with that of the small semicircular block (301), and the third positioning pin (14) is fixed at the lower end of the sliding bottom plate (2).
6. The connecting rod cracking tool in the diesel engine prototype-based manufacturing process according to claim 1, characterized in that: two cam supporting blocks (15) arranged left and right are fixed on the rear side wall of the sliding bottom plate (2), and the two cams (5) are pressed on the corresponding cam supporting blocks (15) respectively.
7. The connecting rod cracking tool in the diesel engine prototype-based manufacturing process according to claim 1, characterized in that: the handle (7) comprises a fixing rod (701) fixedly connected with the cam (5), a screw rod (702) is fixed at the end part of the fixing rod (701) far away from the cam (5), and a lengthened sleeve (703) is screwed on the screw rod (702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020016666.7U CN211804190U (en) | 2020-01-06 | 2020-01-06 | Connecting rod cracking tool based on diesel engine prototype manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020016666.7U CN211804190U (en) | 2020-01-06 | 2020-01-06 | Connecting rod cracking tool based on diesel engine prototype manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211804190U true CN211804190U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020016666.7U Active CN211804190U (en) | 2020-01-06 | 2020-01-06 | Connecting rod cracking tool based on diesel engine prototype manufacturing process |
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| CN (1) | CN211804190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833736A (en) * | 2021-02-26 | 2021-05-25 | 上汽大众汽车有限公司 | Checking tool for checking cracking position of connecting rod |
-
2020
- 2020-01-06 CN CN202020016666.7U patent/CN211804190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833736A (en) * | 2021-02-26 | 2021-05-25 | 上汽大众汽车有限公司 | Checking tool for checking cracking position of connecting rod |
| CN112833736B (en) * | 2021-02-26 | 2023-04-11 | 上汽大众汽车有限公司 | Checking tool for checking cracking position of connecting rod |
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