CN211361925U

CN211361925U - Fixing structure of automobile engine crankshaft

Info

Publication number: CN211361925U
Application number: CN201922431930.3U
Authority: CN
Inventors: 桑元润
Original assignee: Shanghai Jijia Machinery Co ltd
Current assignee: Shanghai Jijia Machinery Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-28
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a fixed knot of automobile engine bent axle constructs, including two bracing pieces, two bracing piece sliding connection has the workstation, be equipped with elevating system in the workstation, the upper end lateral wall of workstation seted up with bracing piece assorted slide opening, the lower extreme of bracing piece run through the slide opening and with elevating system's output fixed connection, two the upper end of bracing piece is all rotated and is connected with first fixed block, and the upper end lateral wall of first fixed block has seted up first arc wall, the last fixed surface of workstation is connected with the spill linking arm, and is provided with two cylinders, two on the spill linking arm the equal fixedly connected with of output and the second fixed block of first fixed block assorted of cylinder. The utility model relates to the field of automotive technology, through the cooperation of arc briquetting and first arc wall, can fix the bent axle, and the extrusion force that produces can offset through reset spring and compression spring's bidirectional action, guarantees the integrality of bent axle.

Description

Fixing structure of automobile engine crankshaft

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a fixed knot of automobile engine bent axle constructs.

Background

The crankshaft is the most important part in the engine, bears the force transmitted by the connecting rod, converts the force into torque, outputs the torque through the crankshaft and drives other accessories on the engine to work, and is an important transmission part on the automobile.

In the production process of the crankshaft, the crankshaft is often required to be fixed so as to be convenient for processing, cleaning and the like, but in a general fixing structure, the clamping plates on two sides are abutted against two ends of the crankshaft to realize fixing, the extrusion force is transmitted to the whole crankshaft, the crankshaft is easy to deform, and the position of the crankshaft cannot be adjusted due to the fact that a general crankshaft fixing device is fixed on a workbench, so that inconvenience is brought to the user.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the bent axle is damaged easily by a bent axle fixing structure in the existing bent axle production technology, and providing a fixed structure of a bent axle of an automobile engine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a fixing structure of a crankshaft of an automobile engine comprises two supporting rods, wherein the two supporting rods are connected with a workbench in a sliding way, a lifting mechanism is arranged in the workbench, the side wall of the upper end of the workbench is provided with a sliding hole matched with the support rod, the lower ends of the supporting rods penetrate through the sliding hole and are fixedly connected with the output end of the lifting mechanism, the upper ends of the two supporting rods are rotatably connected with a first fixing block, and the side wall of the upper end of the first fixed block is provided with a first arc-shaped groove, the upper surface of the workbench is fixedly connected with a concave connecting arm, two cylinders are arranged on the concave connecting arm, the output ends of the two cylinders are fixedly connected with second fixing blocks matched with the first fixing blocks, and a second arc-shaped groove is formed in the side wall of the lower end of the second fixing block, and the second arc-shaped groove is fixedly connected with an arc-shaped pressing block through a plurality of reset springs.

Preferably, elevating system includes two slide rails, slide and push rod motor, two the slide rail symmetry sets up in the workstation, slide sliding connection is in the slide rail, the output of push rod motor and the lower fixed connection of the lower surface of slide, and the upper surface of slide and the lower extreme fixed connection of bracing piece.

Preferably, two slots are symmetrically formed in the side wall of the upper end of the first fixing block, a sliding block is connected to each slot in a sliding mode, a compression spring is connected between each sliding block and each slot, and two insertion blocks matched with the slots are fixedly connected to the side wall of the lower end of the second fixing block.

Preferably, the diameter of the first arc-shaped groove is larger than that of the second arc-shaped groove, and the second arc-shaped groove is positioned right above the first arc-shaped groove.

Preferably, rubber pads are bonded on the outer side walls of the first arc-shaped groove and the arc-shaped pressing block.

Preferably, the concave connecting arm is welded to the table.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the cooperation of first arc wall and arc briquetting, be convenient for compress tightly the one end of bent axle through cylinder control arc briquetting, with the pressure control that produces in bent axle tip, avoid making the bent axle take place to warp, and the reset spring who sets up can offset the pressure that produces through the effort, puts the tip of bent axle impaired, guarantees the integrality of bent axle.

2. The first fixing block and the second fixing block can be controlled to be close to and separated from each other through the control of the air cylinder, so that the first arc-shaped groove and the arc-shaped pressing block can be matched with each other, crankshafts of various sizes can be locked, and the application range of the fixing structure is widened.

3. Set up elevating system, be convenient for through the bent axle rising certain distance of placing in the control push rod motor with first arc wall, make the bottom surface and the workstation of bent axle form certain workspace, convenient to use person polishes, operations such as cleaning the bottom surface of bent axle, and first fixed block rotates and connects on the bracing piece, is convenient for rotate bent axle 180 degrees, processes the opposite side, has improved fixed knot and has constructed's practicality.

Drawings

Fig. 1 is a schematic front perspective structural view of a fixing structure of an automobile engine crankshaft provided by the present invention;

fig. 2 is a schematic side view perspective structure view of a fixing structure of an automobile engine crankshaft provided by the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure: the device comprises a supporting rod 1, a workbench 2, a lifting mechanism 3, a sliding rail 31, a sliding plate 32, a push rod motor 33, a first fixing block 4, a first arc-shaped groove 5, a concave connecting arm 6, a cylinder 7, a second fixing block 8, a second arc-shaped groove 9, a return spring 10, an arc-shaped pressing block 11, a slot 12, a sliding block 13, a compression spring 14, an insertion block 15, a rubber pad 16 and a crankshaft 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a fixed knot of automobile engine bent axle constructs, including two bracing pieces 1, two bracing pieces 1 sliding connection have workstation 2, be equipped with elevating system 3 in the workstation 2, elevating system 3 includes two slide rails 31, slide 32 and push rod motor 33, the model of push rod motor 33 is U7, two slide rails 31 symmetry set up in workstation 2, slide 32 sliding connection is in slide rail 31, the output of push rod motor 33 and the lower fixed surface of slide 32 are connected, and the upper surface of slide 32 and the lower extreme fixed connection of bracing piece 1, the lift of slide 33 is controlled through the convenient to use person of push rod motor 33, realize the lift of bent axle 17.

The upper end lateral wall of workstation 2 seted up with bracing piece 1 assorted slide opening, the lower extreme of bracing piece 1 run through the slide opening and with elevating system 3's output end fixed connection, the upper end of two bracing pieces 1 is all rotated and is connected with first fixed block 4, and the upper end lateral wall of first fixed block 4 has seted up first arc wall 5, the last fixed surface of workstation 2 is connected with spill linking arm 6, and be provided with two cylinders 7 on the spill linking arm 6, the model of cylinder 7 is SC32-50, spill linking arm 6 welds on workstation 2, the welding can increase the steadiness of spill linking arm 6.

The equal fixedly connected with of output of two cylinders 7 and 4 assorted second fixed block 8 of first fixed block, second arc wall 9 has been seted up to the lower extreme lateral wall of second fixed block 8, second arc wall 9 is through a plurality of reset spring 10 fixedly connected with arc briquetting 11, two slots 12 have been seted up to the upper end lateral wall symmetry of first fixed block 4, and sliding connection has slider 13 in slot 12, be connected with compression spring 14 between slider 13 and the slot 12, two and slot 12 assorted inserts 15 of the lower extreme lateral wall fixedly connected with of second fixed block 8, the cooperation of inserts 15 and slot 12 is convenient for arc briquetting 11 and is fixed a position when pushing down, and slider 13 and compression spring 14's cooperation, can offset the pressure that produces between first fixed block 4 and the second fixed block 8, avoid haring bent axle 17.

The diameter of first arc wall 5 is greater than the diameter of second arc wall 9, and first arc wall 5 provides certain space of stepping down for second arc wall 9, is convenient for arc briquetting 11 pressfitting bent axle 17, and second arc wall 9 is located first arc wall 5 directly over, improves the precision machine stability of arc briquetting 11 pressfitting bent axle 17, and the lateral wall of first arc wall 5 and arc briquetting 11 all bonds there is rubber pad 16, and rubber pad 16 can play the guard action to bent axle 17, avoids bent axle 17 to receive wearing and tearing.

When the crankshaft 17 needs to be fixed, two ends of the crankshaft 17 are placed in the first arc-shaped groove 5, the output end of the cylinder 7 drives the second fixing block 8 to press downwards by starting the cylinder 7, the second fixing block 8 drives the arc-shaped pressing block 11 to press towards the crankshaft 17 until the arc-shaped pressing block 11 presses the crankshaft 17 tightly, the cylinder 7 is closed, when the other side of the crankshaft 17 needs to be operated, the cylinder 7 is started, the second fixing block 8 is far away from the first fixing block 4, the crankshaft 17 is unlocked, the first fixing block 8 is rotated, the other side of the crankshaft 17 is opposite to an operator, the cylinder 7 is started, the arc-shaped pressing block 11 locks the crankshaft 17, the rotation of the first fixing block 4 is limited, the other side of the crankshaft 17 can be operated, when the bottom surface of the crankshaft 17 needs to be operated, the cylinder 7 is started, the second fixing block 8 is far away from the first fixing block 4, the push rod motor 33 is started, the, slide 32 can drive bracing piece 1 upward movement, and then the bracing piece drives bent axle 17 upward movement, when bent axle 17 upward movement was during suitable distance, close push rod motor 33, start cylinder 7 makes arc briquetting 11 locking bent axle 17, can operate bent axle 17's bottom surface, through this kind of fixed knot structure, can be when fixed bent axle 17, avoid bent axle 17 to receive the damage, guarantee bent axle 17's integrality, and adjustable bent axle 17's position, improve fixed knot structure's practicality.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The fixing structure of the automobile engine crankshaft comprises two supporting rods (1) and is characterized in that the two supporting rods (1) are connected with a workbench (2) in a sliding mode, a lifting mechanism (3) is arranged in the workbench (2), a sliding hole matched with the supporting rods (1) is formed in the upper end side wall of the workbench (2), the lower ends of the supporting rods (1) penetrate through the sliding hole and are fixedly connected with the output end of the lifting mechanism (3), the upper ends of the two supporting rods (1) are connected with a first fixing block (4) in a rotating mode, a first arc-shaped groove (5) is formed in the upper end side wall of the first fixing block (4), a concave connecting arm (6) is fixedly connected to the upper surface of the workbench (2), two air cylinders (7) are arranged on the concave connecting arm (6), and a second fixing block (8) matched with the first fixing block (4) is fixedly connected to the output ends of the two air cylinders (7), and a second arc-shaped groove (9) is formed in the side wall of the lower end of the second fixing block (8), and the second arc-shaped groove (9) is fixedly connected with an arc-shaped pressing block (11) through a plurality of reset springs (10).

2. The fixed knot of car engine crankshaft constructs according to claim 1, characterized in that, elevating system (3) includes two slide rails (31), slide (32) and push rod motor (33), two slide rails (31) symmetry sets up in workstation (2), slide (32) sliding connection is in slide rail (31), the output of push rod motor (33) and the lower surface fixed connection of slide (32), and the upper surface of slide (32) and the lower extreme fixed connection of bracing piece (1).

3. The fixing structure of the automobile engine crankshaft according to claim 1, characterized in that two slots (12) are symmetrically formed in the upper end side wall of the first fixing block (4), a sliding block (13) is slidably connected in each slot (12), a compression spring (14) is connected between each sliding block (13) and each slot (12), and two insertion blocks (15) matched with the slots (12) are fixedly connected to the lower end side wall of the second fixing block (8).

4. The fixing structure of the crankshaft of the automobile engine according to claim 1, wherein the diameter of the first arc-shaped groove (5) is larger than that of the second arc-shaped groove (9), and the second arc-shaped groove (9) is positioned right above the first arc-shaped groove (5).

5. The fixing structure of the crankshaft of the automobile engine as claimed in claim 1, wherein the outer side walls of the first arc-shaped groove (5) and the arc-shaped pressing block (11) are bonded with rubber pads (16).

6. The fixing structure of the crankshaft of the automobile engine according to claim 1, characterized in that the concave connecting arm (6) is welded on the work table (2).