Quick positioning tool for machining crankshaft of automobile engine

Abstract

The utility model relates to the technical field of automobile engine crankshaft machining, especially to a quick positioning automobile engine crankshaft machining tool. Its technical scheme includes the vertical seat, one side of the vertical seat is provided with the recess, the inside of the recess is provided with the clamping mechanism, the clamping mechanism includes the connecting seat no.

Description

Technical Field

[0001] This utility model relates to the field of automobile engine crankshaft machining technology, and in particular to a tooling for quickly positioning automobile engine crankshaft machining. Background Technology

[0002] The crankshaft is the most important component in an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. The crankshaft is subjected to the combined effects of centrifugal force from the rotating mass, periodically changing gas inertial force, and reciprocating inertial force, resulting in bending and torsional loads. Therefore, the crankshaft requires sufficient strength and rigidity, and the journal surface must be wear-resistant, have uniform operation, and good balance. During machining, it requires tooling for positioning. However, existing crankshaft machining tooling clamping methods are too simplistic, requiring different clamping tooling for crankshafts of different heights, thus affecting machining efficiency and reducing production efficiency. Therefore, this application proposes a rapid positioning tooling for machining automotive engine crankshafts. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art that there is only one clamping method and that different clamping fixtures need to be changed for crankshafts of different heights, and to propose a quick positioning machining fixture for automobile engine crankshafts.

[0004] The technical solution of this utility model is as follows: a tooling for quickly positioning the crankshaft of an automobile engine, including a stand with a groove on one side and a clamping mechanism inside the groove. The clamping mechanism includes a connecting seat, a cylinder connected to the top of the connecting seat, a motor on one side of the connecting seat, a bidirectional lead screw connected to the output end of the motor, a sliding seat sleeved on the outer ring of the bidirectional lead screw, and a clamping seat connected to one side of the sliding seat.

[0005] Optionally, the clamping mechanism further includes a second connecting seat, a groove is provided on one side of the second connecting seat, a sliding rod is connected inside the groove, a slider is sleeved on the outer ring of the sliding rod, and a clamping seat is connected to one side of the slider.

[0006] Optionally, a limiting plate is connected between the clamping seats, and a telescopic rod is connected between the limiting plates.

[0007] Optionally, a fixing seat is connected to one side of the inner side of the groove, and a through groove is provided on one side of the fixing seat.

[0008] Optionally, a telescopic column is connected through a through groove between the first connecting seat and the second connecting seat, and a limit rod is connected through the inside of the groove to the first connecting seat and the second connecting seat.

[0009] Optionally, a base plate is connected to one side of the stand, a positioning cone one is connected to the top of the base plate, an installation head is connected to one side of the top of the connecting seat one, and a positioning cone two is connected to one side of the installation head.

[0010] Optionally, a spring telescopic rod is connected to the inner bottom of the groove, and a buffer plate is connected to the top of the spring telescopic rod.

[0011] Compared with the prior art, this application includes at least one of the following beneficial technical effects: The device is easy to operate and control, has high clamping stability and better flexibility through the bidirectional screw clamping structure. At the same time, the entire structure is on the same horizontal plane, resulting in higher clamping accuracy and smoother overall height adjustment limit. Furthermore, the buffer structure at its bottom can buffer pressure after height adjustment. It also utilizes two positioning cones at the top and bottom to make the crankshaft positioning more stable. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of a tooling for quickly positioning and machining automobile engine crankshafts;

[0013] Figure 2 A schematic diagram of the limiting plate connection structure of a tooling for quickly positioning the crankshaft of an automobile engine;

[0014] Figure 3 A schematic diagram of a spring telescopic rod connection structure for a quick-positioning automotive engine crankshaft machining tooling;

[0015] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.

[0016] Reference numerals in the attached drawings: 1. Stand; 2. Clamping mechanism; 21. Connecting seat one; 22. Motor; 23. Two-way lead screw; 24. Sliding seat; 25. Clamping seat; 26. Limiting plate; 27. Telescopic rod; 28. Telescopic column; 29. ​​Connecting seat two; 210. Slide groove; 211. Slide rod; 212. Slider; 3. Groove; 4. Cylinder; 5. Fixed seat; 6. Through groove; 7. Limiting rod; 8. Buffer plate; 9. Base plate; 10. Positioning cone one; 11. Spring telescopic rod; 12. Mounting head; 13. Positioning cone two. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1

[0024] like Figure 1 , Figure 2 and Figure 4As shown, this utility model proposes a quick-positioning machining fixture for automobile engine crankshafts, including a stand 1. A groove 3 is provided on one side of the stand 1, and a clamping mechanism 2 is disposed inside the groove 3. The clamping mechanism 2 includes a connecting seat 21, with a cylinder 4 connected to the top of the connecting seat 21. A motor 22 is disposed on one side of the connecting seat 21, and a bidirectional lead screw 23 is connected to the output end of the motor 22. A sliding seat 24 is fitted around the outer ring of the bidirectional lead screw 23, and a clamping seat 25 is connected to one side of the sliding seat 24. The groove 3 serves as the main adjustment space. The cylinder 4 is fixedly connected to the connecting seat 21 by bolts, and the motor 22 is fixedly connected to the connecting seat 21 by bolts. The bidirectional lead screw 23 is connected to the motor 22 by a key, the sliding seat 24 is connected to the bidirectional lead screw 23 by screws, and the clamping seat 25 is connected to the sliding seat 24 by welding. This serves as the main clamping driving force, achieving the clamping purpose through relative motion.

[0025] Additionally, it should be noted that, for example Figures 1 to 4As shown, the clamping mechanism 2 also includes a second connecting seat 29. A groove 210 is provided on one side of the second connecting seat 29. A sliding rod 211 is connected inside the groove 210. A slider 212 is fitted around the outer ring of the sliding rod 211. A clamping seat 25 is connected to one side of the slider 212. Limiting plates 26 are connected between the clamping seats 25. A telescopic rod 27 is connected between the limiting plates 26. A fixing seat 5 is connected to one side of the groove 3. A through groove 6 is provided on one side of the fixing seat 5. The first connecting seat 21 and the second connecting seat 29 pass through each other. The through groove 6 is connected to the telescopic column 28. A limit rod 7 is connected to one side of the inner groove 3, passing through connecting seat 1 21 and connecting seat 29. A base plate 9 is connected to one side of the upright 1. A positioning cone 10 is connected to the top of the base plate 9. An installation head 12 is connected to one side of the top of connecting seat 1 21. A positioning cone 2 13 is connected to one side of the installation head 12. A spring telescopic rod 11 is connected to the bottom of the inner groove 3. A buffer plate 8 is connected to the top of the spring telescopic rod 11. The sliding rod 211 is welded to the inside of the sliding groove 210. The slider 212 is fitted onto the outer ring of the slide rod 211. A clamping seat 25 is also welded to one side of the slider 212 for clamping the crankshaft at the second location. The limiting plate 26 is welded to the clamping seat 25. The telescopic rod 27 is embedded in the surface of a limiting plate 26 for limiting adjustment. The fixed seat 5 is welded to the inside of the groove 3. There are two through slots 6 to provide installation space. The telescopic column 28 is used to assist in the height adjustment of the second connecting seat 29. The limiting rod 7 is used to limit the height adjustment of the first connecting seat 21 and the second connecting seat 29. The base plate 9 is welded to the upright 1. The positioning cone 10 is welded to the base plate 9. The mounting head 12 is fixed to the first connecting seat 21 by bolts. The positioning cone 13 is welded to the mounting head 12 for simple positioning of both ends when the crankshaft is placed. The spring telescopic rod 11 is welded to the inner bottom of the groove 3. The top is fixed to the buffer plate 8 by bolts for auxiliary buffering after the height of the second connecting seat 29 is adjusted.

[0026] In this embodiment, when positioning the crankshaft, the actual height of the crankshaft is first measured, and then the height of the clamping seat 25 is adjusted according to the actual height. During this process, the cylinder 4 can be started to adjust upward or downward. After the adjustment is completed, the two ends of the crankshaft are clamped between the positioning cone 10 and the positioning cone 23. Then, the motor 22 is started to drive the bidirectional lead screw 23 to rotate, so that the sliding seats 24 on both sides will move inward at the same time. At the same time, the two sliders 212 inside the slide groove 210 will also move inward at the same time. Then, the clamping seats 25 at both places will clamp and position the outer wall of the crankshaft until the clamping is stable.

[0027] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A rapid positioning machining tool for automobile engine crankshaft, comprising a vertical seat (1), wherein a recess (3) is formed on one side of the vertical seat (1), and a clamping mechanism (2) is arranged in the recess (3). The clamping mechanism (2) includes a connecting seat (21), a cylinder (4) is connected to the top of the connecting seat (21), a motor (22) is provided on one side of the connecting seat (21), a bidirectional lead screw (23) is connected to the output end of the motor (22), a sliding seat (24) is sleeved on the outer ring of the bidirectional lead screw (23), and a clamping seat (25) is connected to one side of the sliding seat (24).

2. The quick positioning machining tool for automobile engine crankshaft according to claim 1, characterized in that, The clamping mechanism (2) further includes a connecting seat two (29), a sliding groove (210) is provided on one side of the connecting seat two (29), a sliding rod (211) is connected inside the sliding groove (210), a slider (212) is sleeved on the outer ring of the sliding rod (211), and a clamping seat (25) is connected to one side of the slider (212).

3. The quick positioning machining tool for the crankshaft of the automobile engine according to claim 2, characterized in that, Limiting plates (26) are connected between the clamping seats (25), and telescopic rods (27) are connected between the limiting plates (26).

4. The quick positioning machining tool for automobile engine crankshaft according to claim 1, characterized in that, A fixing seat (5) is connected to one side of the inside of the groove (3), and a through groove (6) is provided on one side of the fixing seat (5).

5. The quick positioning machining tool for automobile engine crankshaft according to claim 1, characterized in that, A telescopic column (28) is connected between the connecting seat one (21) and the connecting seat two (29) through the through groove (6), and a limit rod (7) is connected through the connecting seat one (21) and the connecting seat two (29) on one side of the groove (3).

6. The quick positioning machining tool for automobile engine crankshaft according to claim 1, characterized in that, One side of the stand (1) is connected to a base plate (9), the top of the base plate (9) is connected to a positioning cone one (10), one side of the top of the connecting seat one (21) is connected to an mounting head (12), and one side of the mounting head (12) is connected to a positioning cone two (13).

7. The quick positioning machining tool for automobile engine crankshaft according to claim 1, characterized in that, A spring telescopic rod (11) is connected to the inner bottom of the groove (3), and a buffer plate (8) is connected to the top of the spring telescopic rod (11).

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