Crankshaft numerical control lathe clamp

By designing a crankshaft CNC lathe fixture with a rotary motor drive, the problem of difficulty in adjusting the clamping force of traditional fixtures was solved, achieving stable clamping of the crankshaft and improving the machining quality.

CN224043144UActive Publication Date: 2026-03-27HUIZHOU KAILIJIE MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional crankshaft CNC lathe fixtures are difficult to adjust the clamping force, which can cause the workpiece to detach or deform during processing, affecting processing quality and equipment safety.

Method used

A clamping structure including a base, a fixing block, a rotating shaft, a fixing caliper, and a clamping disk is designed. The rotating motor controls the drive gear to drive the rotating gear disk, so that the clamping block can move in the vortex groove, adjust the clamping force, and fix the crankshaft using a quick-release structure.

Benefits of technology

This achieves stable clamping of the crankshaft, avoiding relative displacement and deformation of the workpiece during processing, thus improving processing quality and equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crankshaft numerical control lathe clamp, relates to the technical field of crankshaft clamp equipment, and aims to solve the problems that when an existing crankshaft numerical control lathe clamp is used, the clamping force is difficult to adjust, and relative displacement is prone to occurring during machining and rotating to damage a lathe, the crankshaft numerical control lathe clamp comprises a base, and fixing blocks are arranged on the two sides of the base; a supporting column is installed on one side of the fixing block, a first fixing caliper and a second fixing caliper are arranged at the top of the supporting column, a rotating shaft is arranged in the first fixing caliper, a fixing disc is arranged on one side of the top of the fixing block, a clamp disc is clamped in the fixing disc, a rotating fluted disc is arranged on one side of the clamp disc, and a driving gear is arranged on the inner side of the rotating fluted disc. A moving groove is formed in the other side of the clamp disc, and a clamping block is clamped in the moving groove. The crankshaft clamping device is novel in structure, the clamping force of the rotating shaft can be flexibly adjusted, meanwhile, the rotating shaft of a crankshaft is further fixed through the fixing calipers, and relative movement is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a crankshaft fixture equipment technical field especially relates to a kind of crankshaft numerical control lathe fixture. BACKGROUND

[0002] Crankshaft is the most important component in engine, it bears the force from connecting rod, through rough machining, crankshaft is widely used in numerical control machine tool and other fields.In the use of numerical control lathe machining crankshaft, lathe fixture is needed, lathe fixture is used to fix product in the machining process, traditional crankshaft numerical control lathe fixture is difficult to adjust clamping force when using, when machining crankshaft, lathe fixture is too loose can cause workpiece to separate from fixture, too tight can make workpiece deformation, relative displacement occurs when processing rotation, it is easy to damage lathe, present and propose a kind of crankshaft numerical control lathe fixture, can be flexibly clamped according to the size of the rotating shaft of crankshaft, while adjusting the clamping force of rotating shaft of lathe fixture by rotating motor, while setting up the fixed caliper of quick-release structure fixes the rotating shaft of crankshaft, prevents relative movement, improves the processing quality of product. SUMMARY

[0003] The utility model provides a kind of crankshaft numerical control lathe fixture, solve the existing problem.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of crankshaft numerical control lathe fixture, including base, the base both sides are provided with fixed block, and the fixed block side is installed with pillar, the pillar top is provided with first fixed caliper, and the first fixed caliper top is provided with rotating shaft, the rotating shaft side is connected with second fixed caliper, the fixed block top side is provided with fixed disc, and the fixed disc is clamped with fixture disc inside, the fixture disc side is provided with rotating toothed disc, and the rotating toothed disc inside is provided with driving gear, the other side of the fixture disc is provided with moving groove, and the moving groove is clamped with clamping block inside, the clamping block side is provided with clamping block.

[0006] Preferably, the fixed block and pillar are symmetrically arranged on the top of the base, and the first fixed caliper is rotatably connected with the second fixed caliper around the rotating shaft.

[0007] Preferably, the rotating toothed disc is fixedly installed between the rotating toothed disc and the fixture disc, and the rotating toothed disc rotates inside the fixed disc, and the rotating toothed disc and the driving gear are matched in shape and size.

[0008] Preferably, the driving gear side is provided with rotating motor, and the fixed disc inside is provided with motor slot, and the rotating motor is arranged in the motor slot.

[0009] Preferably, the moving groove circumferential array is distributed on one side of the clamp disc, and the clamping block is matched with the moving groove in shape and size, and the clamping block moves along the moving groove.

[0010] Preferably, the side where the first fixed clamp and the second fixed clamp contact is provided with a fixed bolt, and the fixed bolt is symmetrically arranged at the corner inside the first fixed clamp and the second fixed clamp.

[0011] The utility model discloses the beneficial effect that:

[0012] 1, drive gear and rotating gear plate interlock, through rotating motor control drive gear rotation, make clamp disc follow rotating gear plate and rotate in fixed disc inside, and moving groove is a vortex structure, and clamping block moves along moving groove through the rotation of clamp disc, and is retracted and expands, and the rotating shaft that penetrates in the inside of clamp disc is clamped and fixed, and the clamping force of rotating shaft can be adjusted quickly, and the stability during processing is guaranteed.

[0013] 2, the first fixed clamp is rotatably connected with the second fixed clamp, and the side where the first fixed clamp and the second fixed clamp contact is provided with a fixed bolt, and a kind of quick crankshaft rotating shaft fixing mode is formed.

[0014] As described above, after adopting the utility model structure, the problem that traditional crankshaft numerical control lathe clamp is difficult to adjust clamping force during use, and workpiece is separated from clamp when lathe clamp is too loose during processing crankshaft, and workpiece is deformed when lathe clamp is too tight, and relative displacement occurs during processing rotation, and lathe is easily damaged can be better solved. DRAWINGS

[0015] Fig. 1 It is the structure schematic view of the utility model crankshaft numerical control lathe clamp;

[0016] Fig. 2 It is the fixed clamp structure schematic view of the utility model;

[0017] Fig. 3 It is the crankshaft structure schematic view of the utility model;

[0018] Fig. 4 It is the clamp disc structure schematic view of the utility model;

[0019] Fig. 5 It is the clamp disc another angle inside structure schematic view of the utility model;

[0020] Fig. 6 It is the clamp disc inside structure schematic view of the utility model.

[0021] The figure mark: 1, base; 2, fixed block; 3, support column; 4, first fixed clamp; 5, rotating shaft; 6, second fixed clamp; 7, fixed bolt; 8, connecting rod journal; 9, crank; 10, rotating shaft; 11, fixed disc; 12, clamp disc; 13, rotating gear disc; 14, driving gear; 15, rotating motor; 16, motor slot; 17, moving slot; 18, clamping block; 19, clamping block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Referring to Figs. 1-6 A crankshaft numerical control lathe clamp, including base 1, base 1 both sides are provided with fixed block 2, and fixed block 2 side is installed with support column 3, support column 3 top is provided with first fixed clamp 4, and first fixed clamp 4 top is provided with rotating shaft 5, rotating shaft 5 side is connected with second fixed clamp 6, support column 3 is used for fixing first fixed clamp 4, and first fixed clamp 4 is provided with rotating shaft 10 in, fixed block 2 top side is provided with fixed disc 11, and fixed disc 11 is clamped with clamp disc 12 in, clamp disc 12 side is provided with rotating gear disc 13, and rotating gear disc 13 inside is provided with driving gear 14, clamp disc 12 other side is provided with moving slot 17, moving slot 17 is a kind of vortex structure, and moving slot 17 is clamped with clamping block 19 in, clamping block 19 side is provided with clamping block 18.

[0024] Referring to Figs. 1-3 Fixed block 2 and support column 3 are symmetrically arranged on the top of base 1, and first fixed clamp 4 is rotatably connected with second fixed clamp 6 around rotating shaft 5, the shape and size between first fixed clamp 4 and second fixed clamp 6 are matched with rotating shaft 10, rotating shaft 10 rotates inside first fixed clamp 4 and second fixed clamp 6, one side of first fixed clamp 4 and second fixed clamp 6 is provided with fixed bolt 7, and fixed bolt 7 is symmetrically arranged at the corner inside first fixed clamp 4 and second fixed clamp 6, rotating shaft 10 is connected with crank 9 outside, and connecting rod journal 8 is connected with crank 9 inside, rotating shaft 10 and connecting rod journal 8 are parallel to each other.

[0025] Referring to Figs. 4-6The rotating tooth disc 13 is fixedly installed between the clamp disc 12 and the fixed disc 11, and rotates inside the fixed disc 11; the rotating tooth disc 13 is matched in shape and size with the driving gear 14; the driving gear 14 is provided with a rotating motor 15 on one side; the fixed disc 11 is provided with a motor groove 16 inside; the rotating motor 15 is arranged inside the motor groove 16; the driving gear 14 is engaged with the rotating tooth disc 13; the rotating motor 15 controls the rotation of the driving gear 14, so that the clamp disc 12 rotates inside the fixed disc 11 along with the rotating tooth disc 13; the moving grooves 17 are circumferentially arranged on one side of the clamp disc 12; the clamping blocks 18 are matched in shape and size with the moving grooves 17; the clamping blocks 18 move along the moving grooves 17; the clamping blocks 18 are matched in shape and size with the rotating shaft 10; the clamping blocks 18 move along the moving grooves 17 through the rotation of the clamp disc 12, so as to be contracted and expanded, and clamp and fix the rotating shaft 10 penetrating the clamp disc 12.

[0026] Working principle: firstly, in use, the fixed bolt 7 is loosened, the second fixed clamp 6 is opened, the rotating shaft 10 is installed in the holes in the first fixed clamp 4, the fixed disc 11 and the clamp disc 12, after confirming that the installation is stable, the second fixed clamp 6 is closed, and the fixed bolt 7 is tightened, so as to preliminarily fix the crankshaft, ensure the fixing effect of the crankshaft, then the rotating motor 15 controls the driving gear 14 to drive the rotating tooth disc 13 to rotate, the clamp disc 12 rotates along with the rotating tooth disc 13, the clamping blocks 18 move along the moving grooves 17 through the rotation of the clamp disc 12, the moving grooves 17 are a vortex structure, the clamping blocks 18 are contracted and expanded in the moving process, and clamp and fix the rotating shaft 10 penetrating the clamp disc 12; in the working process of the crankshaft numerical control lathe, the rotating motor 15 is controlled to adjust the clamping force of the clamping blocks 18 on the rotating shaft 10 according to different machining needs, so as to ensure the stability in machining.

[0027] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A crankshaft NC lathe fixture comprising a base (1), characterized in that, The base (1) both sides are provided with fixed block (2), and the fixed block (2) one side is installed with support column (3), the support column (3) top is provided with first fixed calipers (4), and the first fixed calipers (4) top is provided with rotating shaft (5), the rotating shaft (5) one side is connected with second fixed calipers (6), the fixed block (2) top one side is provided with fixed disc (11), and the fixed disc (11) inside is clamped with fixture disc (12), the fixture disc (12) one side is provided with rotating gear (13), and the rotating gear (13) inside is provided with drive gear (14), the fixture disc (12) other side is provided with moving groove (17), and the moving groove (17) inside is clamped with clamping block (19), the clamping block (19) one side is provided with clamping block (18).

2. The crankshaft CNC lathe fixture according to claim 1, wherein, The fixed block (2) and support column (3) are symmetrically arranged on the top of the base (1), and the first fixed calipers (4) are rotatably connected with the second fixed calipers (6) around the rotating shaft (5).

3. The crankshaft CNC lathe fixture of claim 1, wherein, The rotating gear (13) and the fixture disc (12) are fixedly installed, and the rotating gear (13) rotates in the fixed disc (11).

4. The crankshaft CNC lathe fixture of claim 1, wherein, The drive gear (14) one side is provided with rotating motor (15), and the fixed disc (11) inside is provided with motor slot (16), the rotating motor (15) is arranged in the motor slot (16) inside.

5. The crankshaft CNC lathe fixture of claim 1, wherein, The moving groove (17) is circumferentially arranged on one side of the fixture disc (12), and the clamping block (19) is matched with the moving groove (17) in size, and the clamping block (18) moves along the moving groove (17).

6. The crankshaft CNC lathe fixture of claim 1, wherein, The first fixed calipers (4) and the second fixed calipers (6) are provided with fixed bolts (7) on one side, and the fixed bolts (7) are symmetrically arranged at the corners inside the first fixed calipers (4) and the second fixed calipers (6).