CN112593272B

CN112593272B - Clamping tool

Info

Publication number: CN112593272B
Application number: CN202011380853.4A
Authority: CN
Inventors: 李鹏; 杨树立; 李尤贵; 王琳; 申健; 姚红卫; 葛向阳; 焦明
Original assignee: AECC Aviation Power Co Ltd
Current assignee: AECC Aviation Power Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-21
Anticipated expiration: 2040-11-30
Also published as: CN112593272A

Abstract

The invention discloses a clamping tool, wherein two ends of a connecting cross beam are respectively connected with the upper ends of a first vertical connecting piece and a second vertical connecting piece, the lower ends of the first vertical connecting piece and the second vertical connecting piece are respectively connected with a first pin mounting seat and a second pin mounting seat, a first pin and a second pin are respectively mounted on the first pin mounting seat and the second pin mounting seat through elastic mechanisms, a ventilator supporting seat is positioned below the first pin and the second pin, the ventilator supporting seat is connected with the first pin mounting seat and the second pin mounting seat, the first pin and the second pin can respectively press two ends of a ventilator on the ventilator supporting seat, and the connecting cross beam, the first vertical connecting piece, the second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin and the second pin are conductors. The invention improves the efficiency and quality of the ventilator anodization treatment.

Description

Clamping tool

Technical Field

The invention belongs to the field of surface treatment of key parts of an aircraft engine, and particularly relates to a clamping tool.

Background

At present, the ventilator for the aeroengine needs to carry out anodization before the assembly in order to promote its performance, adopts artifical mode preparation interim aluminium silk frock to realize the clamping of part and guarantee the electricity to connect more in actual production, treats to demolish aluminium silk scrapping after ventilator surface treatment accomplishes again. The manual preparation temporary tool is complex in operation flow, large in clamping quality difference, low in efficiency, prone to generating common anodization defects such as electric beating and air bags due to the fact that a large number of aluminum wires are wasted and manual cost is wasted when the tool is made manually, production requirements in the current stage are difficult to meet, the bottleneck problem in the preparation of engine parts is solved, and a new tool for clamping is urgently needed to guarantee the efficiency and quality of anodization of the parts.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a clamping tool to improve and ensure the efficiency and quality of anodizing of a ventilator for an aeroengine.

The technical scheme adopted by the invention is as follows:

the clamping tool comprises a connecting cross beam, a first vertical connecting piece, a second vertical connecting piece, a first pin mounting seat, a second pin mounting seat, a first pin, a second pin and a ventilator supporting seat, wherein two ends of the connecting cross beam are respectively connected with the upper ends of the first vertical connecting piece and the second vertical connecting piece, the lower ends of the first vertical connecting piece and the second vertical connecting piece are respectively connected with the first pin mounting seat and the second pin mounting seat, the first pin and the second pin are respectively mounted on the first pin mounting seat and the second pin mounting seat through elastic mechanisms, the ventilator supporting seat is positioned below the first pin and the second pin, the ventilator supporting seat is connected with the first pin mounting seat and the second pin mounting seat, the first pin and the second pin can respectively press two ends of a ventilator on the ventilator supporting seat, and the connecting cross beam, the first vertical connecting piece, the second pin mounting seat and the ventilator supporting seat are respectively connected with the two ends of the ventilator, The second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin and the second pin are conductors.

Preferably, the clamping tool further comprises a connecting plate, the upper end of the connecting plate is located between the first pin mounting seat and the second pin mounting seat and is connected with the first pin mounting seat and the second pin mounting seat, the lower end of the connecting plate extends to the lower portions of the first pin and the second pin, the ventilator supporting seat is mounted at the lower end of the connecting plate, and the lower end of the connecting plate is provided with a liquid flowing port.

Preferably, the ventilator support base is provided with a positioning groove for positioning the ventilator.

Preferably, the edge of the positioning groove on the side supporting the ventilator is provided with an inclined positioning inclined surface.

Preferably, the lower ends of the first vertical connecting piece and the second vertical connecting piece are vertically connected with the upper wing edge of the U-shaped mounting seat, the upper ends of the first pin and the second pin vertically penetrate through the upper wing edge and the lower wing edge of the U-shaped mounting seat, a spring is sleeved on the part, located between the upper wing edge and the lower wing edge of the U-shaped mounting seat, of the first pin and the second pin, a first limiting pin is arranged above the upper wing edge of the U-shaped mounting seat of the first pin and the second pin, second limiting pins are arranged above the lower wing edge of the U-shaped mounting seat of the first pin and the second pin and at the lower end of the spring, and the spring is in an original length state or a compressed state.

Preferably, the U-shaped mounting seat is provided with an anti-rotation piece on one side of the first pin and one side of the second pin, the anti-rotation piece is in contact with the first pin and the second pin, the contact surfaces of the anti-rotation piece and the first pin and the second pin are planes, and one sides of the first pin and the second pin in contact with the anti-rotation piece are provided with a section of plane.

Preferably, the lower ends of the first pin and the second pin are arranged in a wedge shape.

Preferably, the middle parts of the lower ends of the first pin and the second pin are provided with groove shapes.

Preferably, the middle part of the connecting beam is provided with a through hole.

Preferably, the connecting cross beam is made of the same material, the first vertical connecting piece, the second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin, the second pin and the elastic mechanism are made of titanium alloy materials, and the ventilator support seat base is made of wood or PVC materials.

The invention has the following beneficial effects:

according to the invention, the ventilator supporting seat, the elastic mechanism, the first pin and the second pin are arranged, the elastic mechanism can enable the lower ends of the first pin and the second pin to tightly press the two ends of the ventilator on the ventilator supporting seat, so that the state of the ventilator is stable, the stirring of the stirrer can be resisted in the anodic oxidation process, the electric connection between the first pin and the ventilator and the electric connection between the second pin and the ventilator can be ensured, and the anodizing effect of the ventilator can be further ensured. The first pin and the second pin are horizontally combined with the ventilator, so that the generation of electric shock defects can be reduced; the ventilator is tightly clamped through the ventilator supporting seat, the elastic mechanism, the first pin and the second pin, so that bath solution can be stirred greatly, and the generation of air bag defects is reduced; when the clamping tool is used for clamping the ventilator, the first pin and the second pin are pushed upwards, then the ventilator is placed on the ventilator supporting seat, and after the first pin and the second pin are released, the first pin and the second pin respectively press two ends of the ventilator on the ventilator supporting seat, so that the clamping tool also improves the production efficiency.

Furthermore, a positioning groove used for positioning the ventilator is formed in the ventilator support base, so that the ventilator can be stably placed on the ventilator support base.

Furthermore, the edge of one side of the positioning groove, which supports the ventilator, is provided with an inclined positioning inclined surface, and the ventilator can perform axial limiting on two ends of the ventilator through the positioning inclined surfaces at the two ends of the ventilator, so that the stability of the state of the ventilator in the anodic oxidation process is ensured.

Furthermore, prevent changeing the piece through setting up, can prevent that first pin and second pin from taking place to pass by certainly, guarantee the clamping state of ventilator unstably, influence the surperficial oxidation effect of ventilator.

Furthermore, the lower ends of the first pin and the second pin are arranged in a wedge shape, the structure can reduce the contact area of the first pin and the second pin with the ventilator, and the surface quality of anodic oxidation of the ventilator is improved.

Furthermore, the middle parts of the lower ends of the first pin and the second pin are arranged in a groove shape, and the structure can further reduce the contact area of the first pin and the second pin and the ventilator.

Furthermore, a through hole is formed in the middle of the connecting cross beam, and the whole clamping tool is convenient to mount and fix during anodic oxidation by means of the through hole.

Drawings

FIG. 1 is a front view of a clamping tool (when clamping a ventilator) according to the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a perspective view of the clamping tool (when clamping the ventilator) according to the present invention;

fig. 4 is a schematic structural diagram of a positioning groove in an embodiment of the invention.

In the figure, 1-connecting beam, 2-through hole, 3-vertical connecting piece, 4-pin mounting seat, 5-first pin, 6-second pin, 7-spring, 8-first limiting pin, 9-second limiting pin, 10-anti-rotation piece, 11-notch, 12-connecting plate, 12-1-liquid flow port, 13-ventilator supporting seat, 13-1-positioning groove, 13-1-1-positioning inclined surface, 14-ventilator, 14-1-big end, 14-2-small end and 15-positioning plane.

Detailed Description

The invention is further described below with reference to the figures and examples.

Referring to fig. 1-3, the clamping tool of the invention comprises a connecting crossbeam 1, a vertical connecting piece 3, a pin mounting seat 4, a first pin 5, a second pin 6 and a ventilator supporting seat 13, wherein the vertical connecting piece 3 comprises a first vertical connecting piece and a second vertical connecting piece, the pin mounting seat 4 comprises a first pin mounting seat and a second pin mounting seat, two ends of the connecting crossbeam 1 are respectively connected with the upper ends of the first vertical connecting piece and the second vertical connecting piece, the lower ends of the first vertical connecting piece and the second vertical connecting piece are respectively connected with the first pin mounting seat and the second pin mounting seat, the first pin 5 and the second pin 6 are respectively mounted on the first pin mounting seat and the second pin mounting seat through elastic mechanisms, the ventilator supporting seat 13 is positioned below the first pin 5 and the second pin 6, the ventilator 13 is connected with the first pin mounting seat and the second pin mounting seat, the first pin 5 and the second pin 6 can respectively press two ends of the ventilator 14 on the ventilator support base 13, and the connecting crossbeam 1, the first vertical connecting piece, the second vertical connecting piece, the first pin mounting base, the second pin mounting base, the first pin 5 and the second pin 6 are conductors.

As a preferable embodiment of the invention, the clamping tool further comprises a connecting plate 12, the upper end of the connecting plate 12 is positioned between the first pin mounting seat and the second pin mounting seat and is connected with the first pin mounting seat and the second pin mounting seat, the lower end of the connecting plate 12 extends to the lower parts of the first pin 5 and the second pin 6, the ventilator support seat 13 is installed at the lower end of the connecting plate 12, and the lower end of the connecting plate 12 is provided with a liquid flow port 12-1.

As a preferred embodiment of the present invention, referring to FIGS. 1-4, the ventilator support base 13 is provided with a positioning groove 13-1 for positioning the ventilator 14.

As a preferred embodiment of the present invention, referring to FIG. 4, the edge of the positioning groove 13-1 on the side of the support ventilator 14 is provided with an inclined positioning inclined surface 13-1-1.

As a preferred embodiment of the invention, the lower ends of the first vertical connecting piece and the second vertical connecting piece are vertically connected with the upper wing edge of the U-shaped mounting seat, the upper ends of the first pin 5 and the second pin 6 vertically penetrate through the upper wing edge and the lower wing edge of the U-shaped mounting seat, a spring 7 is sleeved on the part, between the upper wing edge and the lower wing edge of the U-shaped mounting seat, of the first pin 5 and the second pin 6, a first limit pin 8 is arranged above the upper wing edge of the U-shaped mounting seat by the first pin 5 and the second pin 6, a second limit pin 9 is arranged above the lower wing edge of the U-shaped mounting seat and at the lower end of the spring 7 by the first pin 5 and the second pin 6, the spring 7 is in an original length or a compressed state, and the spring 7, the first limit pin 8 and the second limit pin 9 are used as the elastic mechanism.

As a preferred embodiment of the invention, the U-shaped mounting seat is provided with the anti-rotation piece 10 on one side of the first pin 5 and one side of the second pin 6, the anti-rotation piece 10 is in contact with the first pin 5 and the second pin 6, the contact surfaces of the anti-rotation piece 10 and the first pin 5 and the second pin 6 are planes, and one side of the first pin 5 and one side of the second pin 6 in contact with the anti-rotation piece 10 are set to be a section of plane.

As a preferred embodiment of the present invention, the lower ends of the first pin 5 and the second pin 6 are provided in a tapered wedge shape.

In a preferred embodiment of the present invention, the lower middle portions of the first pin 5 and the second pin 6 are formed in a groove shape.

As a preferred embodiment of the present invention, the connecting beam 1 is provided with a through hole 2 at the middle thereof.

As a preferred embodiment of the invention, the connecting beam 1 is made of the same material, the first vertical connecting piece, the second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin 5, the second pin 6 and the elastic mechanism are made of titanium alloy materials, and the base of the ventilator supporting seat 13 is made of wood or PVC materials.

The clamping tool can enable ventilator parts to keep point contact, and horizontally clamps the ventilator 14 through 8 point contacts. In actual operation, a certain pretightening force is applied to the spring on the titanium alloy main body to realize the tight combination of the part and the clamp, the tight combination mode can ensure that the part can effectively resist the impact force from stirring during the anodizing treatment in the electrolyte solution, and the probability of defect generation is fully reduced by the horizontal clamping of the part and the solution stirring, so that the finished product rate of the surface treatment of the part is improved.

The use method of the clamping tool comprises the following steps:

when the ventilator is clamped before being anodized, any one of the first pin 5 and the second pin 6 is lifted to be matched with the positioning groove 13-1 on the corresponding ventilator supporting seat 13 so as to clamp the ventilator, and the clamping mode of the ventilator has directional uniqueness according to the outline of the ventilator supporting seat 13. And lifting the other one of the first pin 5 and the second pin 6 to be matched with the corresponding ventilator support base 13 to clamp the ventilator, shaking the clamp which clamps the ventilator to ensure that whether the part is shaken is observed, and if the ventilator shakes, checking the condition that the part is clamped into the first pin 5 and the second pin 6 and the tightness degree of the spring, and removing faults. And placing the clamped clamping tool into an electrolyte tank and connecting the clamping tool with a power supply. The anode of the power supply is now in good electrical contact with the copper connection beam 1 through the through-hole in the connection beam 1 and conducts the current to the connection piece, the pin mount, the first pin 5, the second pin 6 and on to the two ends of the ventilator. Ventilator supporting seat 13 has played the supporting role at whole clamping in-process, guarantees that whole clamping frock clamp and the whole stirring that can resist the agitator of ventilator.

The invention has the advantages that:

1: in terms of material selection, the clamp design fully considers the complexity of anodization reaction and reduces the manufacturing cost, and a connecting beam 1 made of copper materials is selected to connect an external power supply and the clamp so as to ensure the conductivity of the clamp; titanium alloy materials are selected from the first vertical connecting piece, the second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin 5 and the second pin 6 to ensure the middle clamp in actual production; the connecting plate 12 is made of PVC materials, so that the stability of the clamp and the non-reactivity with the solution are guaranteed; the ventilator support base 13 is of a wood material to facilitate manufacture and replacement.

2: from the view of tool clamping, the lower ends of the first pin 5 and the second pin 6 are arranged to be in an inclined wedge shape, the middle parts of the lower ends of the first pin 5 and the second pin 6 are arranged to be in a groove shape, so that clamping of ventilator parts with different sizes is facilitated, the middle parts of the lower ends of the first pin 5 and the second pin 6 are arranged to be in a groove shape, the edge of one side of the positioning groove 13-1, which is similar to the horn mouth, of the positioning inclined surface 13-1-1, the width of the bottom of the horn mouth is different, so that the clamping sequence of the parts is limited, and the standard management of part clamping is guaranteed.

3: the spring is arranged and positioned by side clamping, and the arrangement of the spring can provide enough pretightening force for clamping parts, so that the tight clamping is ensured, and the parts can be ensured to be always kept in good electric connection in the reaction; the anti-rotation piece 10 can limit the positions of the first pin and the second pin, so that the pins can only lift in a preset direction, and the clamping quality and efficiency are guaranteed.

4: as shown in fig. 4, the shape of the ventilator support 13 and the first and second pins (recessed in the middle of the lower end) ensures point contact (contact between the cylinder and the flared edge) between the component and the fixture, which does not hinder film growth by excessive contact while maintaining electrical contact, thereby ensuring film continuity after anodization of the component.

5: in actual production, the clamping tool and the ventilator part are horizontally combined, so that the generation of electric shock defects is reduced; the tight clamping can ensure that the bath solution is stirred greatly, thereby reducing the generation of air bag defects; the clamp clamping improves the production efficiency.

Claims

1. The clamping tool is characterized by comprising a connecting cross beam (1), a first vertical connecting piece, a second vertical connecting piece, a first pin mounting seat, a second pin mounting seat, a first pin (5), a second pin (6) and a ventilator supporting seat (13), wherein two ends of the connecting cross beam (1) are respectively connected with the upper ends of the first vertical connecting piece and the second vertical connecting piece, the lower ends of the first vertical connecting piece and the second vertical connecting piece are respectively connected with the first pin mounting seat and the second pin mounting seat, the first pin (5) and the second pin (6) are respectively mounted on the first pin mounting seat and the second pin mounting seat through elastic mechanisms, the ventilator supporting seat (13) is located below the first pin (5) and the second pin (6), the ventilator supporting seat (13) is connected with the first pin mounting seat and the second pin mounting seat, two ends of the ventilator (14) can be respectively compressed tightly at two ends of the ventilator (5) and the second pin (6) On the air blower supporting seat (13), the connecting crossbeam (1), the first vertical connecting piece, the second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin (5) and the second pin (6) are all conductors;

the lower ends of the first vertical connecting piece and the second vertical connecting piece are vertically connected with the upper wing edge of the U-shaped mounting seat, the upper ends of the first pin (5) and the second pin (6) vertically penetrate through the upper wing edge and the lower wing edge of the U-shaped mounting seat, a spring (7) is sleeved on the part, located between the upper wing edge and the lower wing edge of the U-shaped mounting seat, of the first pin (5) and the second pin (6), a first limiting pin (8) is arranged above the upper wing edge of the U-shaped mounting seat of the first pin (5) and the second pin (6), a second limiting pin (9) is arranged above the lower wing edge of the U-shaped mounting seat and at the lower end of the spring (7), and the spring (7) is in an original length or in a compressed state.

2. The clamping tool according to claim 1, further comprising a connecting plate (12), wherein the upper end of the connecting plate (12) is located between the first pin mounting seat and the second pin mounting seat and connected with the first pin mounting seat and the second pin mounting seat, the lower end of the connecting plate (12) extends to the lower portions of the first pin (5) and the second pin (6), the ventilator support base (13) is mounted at the lower end of the connecting plate (12), and the lower end of the connecting plate (12) is provided with a liquid flow port (12-1).

3. The clamping tool according to claim 1, wherein the ventilator support base (13) is provided with a positioning groove (13-1) for positioning the ventilator (14).

4. A clamping tool according to claim 3, characterized in that the edge of the positioning groove (13-1) on the side supporting the ventilator (14) is provided with an inclined positioning inclined surface (13-1-1).

5. The clamping tool according to claim 1, wherein the U-shaped mounting seat is provided with a rotation preventing piece (10) on one side of the first pin (5) and one side of the second pin (6), the rotation preventing piece (10) is in contact with the first pin (5) and the second pin (6), the contact surfaces of the rotation preventing piece (10) and the first pin (5) and the second pin (6) are planes, and one side of the first pin (5) and one side of the second pin (6) in contact with the rotation preventing piece (10) are provided with a section of plane.

6. The clamping tool according to claim 1, wherein the lower ends of the first pin (5) and the second pin (6) are wedge-shaped.

7. A clamping tool according to claim 6, characterized in that the middle parts of the lower ends of the first pin (5) and the second pin (6) are provided with grooves.

8. The clamping tool according to claim 1, wherein a through hole (2) is formed in the middle of the connecting cross beam (1).

9. The clamping tool according to claim 1, wherein the connecting beam (1) is made of the same material, the first vertical connecting piece, the second vertical connecting piece, the first pin mounting seat, the second pin mounting seat, the first pin (5), the second pin (6) and the elastic mechanism are made of titanium alloy materials, and the base of the ventilator supporting seat (13) is made of wood or PVC materials.