CN218284634U

CN218284634U - Clamping device for turning crankshaft

Info

Publication number: CN218284634U
Application number: CN202222758523.5U
Authority: CN
Inventors: 林素伟; 张福英; 黄正钱; 苏德华
Original assignee: Zhejiang Weilin Mechanical Co ltd
Current assignee: Zhejiang Weilin Mechanical Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-13
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a clamping device for lathe work of bent axle, including bearing structure, bearing structure one end is connected with adjusts the structure, it is connected with clamping structure on the structure to adjust, clamping structure includes pivot, spout, fixed plate, slide, positive and negative screw rod, fixation nut, punch holder, installation slot, lower plate, fixed strip, gag lever post, round pad, rubber pad, cutting, pivot one end is fixed with the fixed plate, be connected with on the fixed plate the punch holder with the lower plate designs through to the clamping structure in this device, can conveniently carry out the centre gripping to the bent axle both ends through rotating positive and negative screw rod control punch holder and lower plate closure, and easy operation is fixed with the rubber pad simultaneously and can carries out fine protection when the bent axle centre gripping on punch holder and the lower plate inner wall, avoids exerting very big pretension clamping-force to the bent axle, causes the problem that the bent axle surface caused hard damage in the centre gripping process.

Description

Clamping device for turning crankshaft

Technical Field

The utility model relates to a bent axle technical field specifically is a clamping device is used in lathe work crankshaft.

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 the crankshaft is subjected to the combined action of centrifugal force of rotating mass, gas inertia force with periodic change and reciprocating inertia force to bear the action of bending and twisting load, so that the crankshaft is required to have enough strength and rigidity, and the surface of a journal needs to be wear-resistant, work uniformly and balance well.

In the process of processing the crankshaft, the crankshaft needs to be clamped, in the prior art, the crankshaft is clamped in a sleeve clamping or chuck mode, so that a large pre-tightening clamping force is often required to be applied to the crankshaft to achieve the purpose of firm clamping, and meanwhile, the surface of the crankshaft is subjected to hard damage in the clamping process; carry out the centre gripping through above mode, it is inconvenient to use, and operating procedure is complicated, and the not convenient to popularize and use, for this reason, we provide a clamping device for crankshaft machining and solve above-mentioned problem, for this reason, provide a clamping device for crankshaft machining of turning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device is used in lathe work to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a clamping device is used in lathe work of bent axle, includes bearing structure, bearing structure one end is connected with adjusts the structure, it is connected with clamping structure on the structure to adjust, clamping structure includes pivot, spout, fixed plate, slide, positive and negative screw rod, fixation nut, punch holder, installation slot, lower plate, fixed strip, gag lever post, round pad, rubber pad, cutting, pivot one end is fixed with the fixed plate, be connected with on the fixed plate the punch holder with the lower plate.

As further preferable in the present technical solution: the sliding grooves are formed in the two ends of the fixing plate, the sliding plates are fixed to one ends of the upper clamping plate and the lower clamping plate, and the sliding plates are movably inserted into the fixing plate.

As further preferable in the present technical solution: the mounting slots are formed in the upper clamping plate and the lower clamping plate, the rubber pads are connected to the inner portions of the upper clamping plate and the lower clamping plate, the inserting strips are fixed on the rubber pads, and the inserting strips are movably inserted into the mounting slots.

As a further preferred aspect of the present invention: the fixing nuts are fixed at one ends of the upper clamp plate and the lower clamp plate, the positive and negative screws are in threaded connection with the inner portions of the fixing nuts, fixing strips are fixed on two sides of the upper clamp plate and the lower clamp plate, the limiting rods are movably inserted into the fixing strips, and the round pads are fixed at two ends of the limiting rods.

As a further preferred aspect of the present invention: the adjusting structure comprises a crank screw, a limiting pad, a sliding rod, a fixing column and a sliding block, wherein the rotating shaft is connected with the sliding block in a limiting rotating mode, the fixing column is fixed on one side of the sliding block, the fixing column is connected with the crank screw in a limiting rotating mode through the limiting pad, and the sliding block is movably sleeved on the outer side of the sliding rod.

As further preferable in the present technical solution: the supporting structure comprises an operating table, supporting legs, supporting blocks, fixing blocks and a supporting plate, wherein the supporting legs are fixed at the bottom of the operating table, the supporting blocks are fixed at the top of one end of the operating table, a motor is fixed on the supporting blocks, the output shaft of the motor is fixedly connected with the clamping structure, the clamping structure is connected to one side of the motor and passes through the fixing blocks to be supported and fixed, the supporting plate is fixed at the top of the other end of the operating table, and the crank screw is connected to the inside of the supporting plate through threads.

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

through designing the clamping structure in this device, can conveniently carry out the centre gripping to the bent axle both ends through rotating positive and negative screw control punch holder and lower plate closure, easy operation is fixed with the rubber pad simultaneously and can carries out fine protection when can be to the bent axle centre gripping on punch holder and the lower plate inner wall, avoids exerting very big pretension clamping-force to the bent axle, causes the problem that the centre gripping in-process bent axle surface caused hard damage.

This device drives the slider and removes on the slide bar through rotating the crank screw rod through setting up the regulation structure, can conveniently adjust the centre gripping according to the length of processing bent axle, uses more in a flexible way.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the adjusting structure of the present invention;

FIG. 3 is a schematic view of the clamping structure of the present invention;

fig. 4 is a schematic view of the clamping structure according to the present invention.

In the figure: 1. a support structure; 10. an operation table; 11. supporting legs; 12. a support block; 13. a fixed block; 14. a support plate;

2. an adjustment structure; 20. a crank screw; 21. a limiting pad; 22. a slide bar; 23. fixing a column; 24. a slider;

3. a clamping structure; 30. a rotating shaft; 31. a chute; 32. a fixing plate; 33. a slide plate; 34. a positive and negative screw; 340. fixing a nut; 35. an upper splint; 350. installing a slot; 36. a lower splint; 37. a fixing strip; 38. a limiting rod; 380. a round pad; 39. a rubber pad; 390. cutting; 4. an electric motor.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Examples

Please refer to fig. 1-4, the utility model provides a technical scheme clamping device for lathe work, including bearing structure 1, bearing structure 1 includes operation panel 10, supporting leg 11, supporting shoe 12, fixed block 13, backup pad 14, operation panel 10 bottom is fixed with supporting leg 11, operation panel 10 one end top is fixed with supporting shoe 12, be fixed with motor 4 on the supporting shoe 12, motor 4's output shaft fixedly connected with clamping structure 3, clamping structure 3 that motor 4 one side is connected supports fixedly through fixed block 13, operation panel 10 other end top is fixed with

backup pad

14, 14 internal thread of backup pad has crank screw rod 20, it rotates to drive clamping structure 3 through pivot 30 through motor 4, and then carry out lathe work to the bent axle.

1 one end of bearing structure is connected with adjusts structure 2, adjust structure 2 and include crank screw 20, spacing pad 21, slide bar 22, fixed column 23, slider 24, the inside spacing rotation of slider 24 is connected with pivot 30, slider 24 one side is fixed with fixed column 23, fixed column 23 is inside to be connected with crank screw 20 through the spacing rotation of

spacing pad

21, 24 activities of slide block cup joint in the slide bar 22 outside, when needs carry out the centre gripping adjustment according to the length of processing bent axle, carry out position removal through rotating crank screw 20 and driving slider 24 through slide bar 22 through crank screw 20, afterwards carry out the centre gripping through clamping structure 3 with the bent axle both ends can.

Be connected with clamping structure 3 on adjusting structure 2, clamping structure 3 includes pivot 30, spout 31, fixed plate 32, slide 33, positive and negative screw rod 34, fixation nut 340, punch holder 35, installation slot 350, lower plate 36, fixed strip 37, gag lever post 38, round pad 380, rubber pad 39, cutting 390, pivot 30 one end is fixed with fixed plate 32, spout 31 has all been seted up to fixed plate 32 both ends inside, punch holder 35 all is fixed with slide 33 with 36 one end of lower plate, slide 33 activity is pegged graft inside fixed plate 32, punch holder 35 and lower plate 36 pass through slide 33 activity and peg graft inside fixed plate 32, can be spacing inside fixed plate 32 with punch holder 35 and lower plate 36, increase the stability of punch holder 35 and lower plate 36, be convenient for adjust punch holder 35 and lower plate 36 and slide on fixed plate 32 simultaneously, be convenient for carry out the centre gripping to the bent axle.

Installation slot 350 has all been seted up to punch holder 35 and lower plate 36 inside, punch holder 35 and the inside rubber pad 39 that all is connected with of lower plate 36, be fixed with cutting 390 on the rubber pad 39, the inside activity of installation slot 350 is pegged graft and is had cutting 390, frictional force when guaranteeing the bent axle centre gripping through the inside rubber pad 39 that sets up of punch holder 35 and lower plate 36 is simultaneously, cause the problem that bent axle both ends centre gripping department caused the damage under outer prestressing force when also can avoiding the centre gripping through rubber pad 39, connect on punch holder 35 and lower plate 36 inner wall through the mode of adopting the grafting with rubber pad 39, be convenient for change rubber pad 39, increase the life of rubber pad 39.

Upper plate 35 and lower plate 36 one end all are fixed with fixation nut 340, the inside threaded connection of fixation nut 340 has positive and negative screw rod 34, upper plate 35 and lower plate 36 both sides all are fixed with fixed strip 37, the inside activity of fixed strip 37 is pegged graft and is had gag lever post 38, gag lever post 38 both ends are fixed with round pad 380, can carry out synchronous to or move to the back with upper plate 35 and lower plate 36 through fixed fixation nut 340 on rotating positive and negative screw rod 34 through upper plate 35 and lower plate 36, conveniently carry out the centre gripping to the bent axle, peg graft inside fixed strip 37 through gag lever post 38 activity, can carry out further spacingly to upper plate 35 and lower plate 36, stability when guaranteeing upper plate 35 and lower plate 36 centre gripping.

Working principle or structural principle:

clamping the crankshaft: the upper clamping plate 35 and the lower clamping plate 36 can synchronously move towards (clamping a crankshaft) or back (disassembling the crankshaft) by rotating the positive and negative screw rods 34 through the fixing nuts 340 fixed on the upper clamping plate 35 and the lower clamping plate 36, then the crankshaft is placed between the upper clamping plate 35 and the lower clamping plate 36 for clamping, the fixing strips 37 fixed on the upper clamping plate 35 and the lower clamping plate 36 are movably inserted into the fixing strips 37 through the limiting rods 38, the upper clamping plate 35 and the lower clamping plate 36 can be further limited, the stability of the upper clamping plate 35 and the lower clamping plate 36 during clamping is ensured, the rubber pads 39 are arranged in the upper clamping plate 35 and the lower clamping plate 36 to ensure the friction force during clamping the crankshaft, and meanwhile, the problem that the clamping positions at two ends of the crankshaft are damaged under external prestress during clamping can be avoided through the rubber pads 39;

adjusting the clamping distance according to the length of the crankshaft: by rotating the crank screw 20, the crank screw 20 drives the slider 24 to move through the slide rod 22, the slider 24 drives the clamping structure 3 to move, and therefore good clamping can be achieved according to crankshafts with different lengths, and the crank clamping device is convenient to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a clamping device for lathe work of crankshaft, includes bearing structure (1), its characterized in that: bearing structure (1) one end is connected with regulation structure (2), be connected with clamping structure (3) on regulation structure (2), clamping structure (3) are including pivot (30), spout (31), fixed plate (32), slide (33), positive and negative screw rod (34), fixation nut (340), punch holder (35), installation slot (350), lower plate (36), fixed strip (37), gag lever post (38), round pad (380), rubber pad (39), cutting (390), pivot (30) one end is fixed with fixed plate (32), be connected with on fixed plate (32) punch holder (35) with lower plate (36).

2. The clamping device for lathe crankshaft machining according to claim 1, characterized in that: the sliding grooves (31) are formed in the two ends of the fixing plate (32), the sliding plates (33) are fixed to one ends of the upper clamping plate (35) and the lower clamping plate (36), and the sliding plates (33) are movably inserted into the fixing plate (32).

3. The clamping device for lathe crankshaft machining according to claim 1, characterized in that: the mounting slots (350) are formed in the upper clamping plate (35) and the lower clamping plate (36), the rubber pads (39) are connected to the inner portions of the upper clamping plate (35) and the lower clamping plate (36), the inserting strips (390) are fixed on the rubber pads (39), and the inserting strips (390) are movably inserted into the mounting slots (350).

4. The clamping device for lathe crankshaft machining according to claim 1, characterized in that: the upper clamp plate (35) and one end of the lower clamp plate (36) are both fixed with the fixing nut (340), the internal thread of the fixing nut (340) is connected with the positive and negative screw rods (34), the two sides of the upper clamp plate (35) and the lower clamp plate (36) are both fixed with the fixing strips (37), the limiting rods (38) are movably inserted in the fixing strips (37), and the round pads (380) are fixed at the two ends of the limiting rods (38).

5. The clamping device for lathe crankshaft machining according to claim 1, characterized in that: the adjusting structure (2) comprises a crank screw (20), a limiting cushion (21), a sliding rod (22), a fixing column (23) and a sliding block (24), wherein the rotating shaft (30) is connected to the inside of the sliding block (24) in a limiting rotating mode, the fixing column (23) is fixed to one side of the sliding block (24), the crank screw (20) is connected to the inside of the fixing column (23) in a limiting rotating mode through the limiting cushion (21), and the sliding block (24) is movably sleeved on the outer side of the sliding rod (22).

6. The clamping device for lathe crankshaft machining according to claim 5, characterized in that: supporting structure (1) includes operation panel (10), supporting leg (11), supporting shoe (12), fixed block (13), backup pad (14), operation panel (10) bottom is fixed with supporting leg (11), operation panel (10) one end top is fixed with supporting shoe (12), be fixed with motor (4) on supporting shoe (12), the output shaft fixedly connected with of motor (4) clamping structure (3), motor (4) one side is connected clamping structure (3) pass through fixed block (13) support is fixed, operation panel (10) other end top is fixed with backup pad (14), backup pad (14) internal thread is connected with crank screw rod (20).