CN220984387U

CN220984387U - Pneumatic riveting tool for reed contact

Info

Publication number: CN220984387U
Application number: CN202322363979.6U
Authority: CN
Inventors: 朱靖彦; 张春豪
Original assignee: Shanghai Aerospace Electronics Co ltd
Current assignee: Shanghai Aerospace Electronics Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-05-17
Anticipated expiration: 2033-09-01

Abstract

The utility model provides a reed contact pneumatic riveting tool which is characterized by being used for riveting a reed contact combination, wherein the reed contact combination comprises a riveted reed (6) and a plurality of to-be-riveted contacts (3), the riveted reed (6) is a circular arc-shaped sheet, the to-be-riveted contacts (3) are respectively positioned at the ends of a plurality of long strips extending from one side of the circular arc, the pneumatic riveting tool comprises a clamp part of the reed provided with a reed special clamp (9) and a pneumatic tool part provided with an electromagnetic valve (11) and an air cylinder (12) which are arranged on a base (14), the to-be-riveted reed (6) and the to-be-riveted contacts (3) are fixed on the base (14) through the reed special clamp (9), and the electromagnetic valve (11) is used for controlling the air cylinder (12) to perform punching riveting. The utility model replaces the traditional manual riveting by the mechanized means, has quite high size consistency of finished products, and has the characteristics of simple structure, convenient operation, small processing error and the like.

Description

Pneumatic riveting tool for reed contact

Technical Field

The utility model relates to the field of materials and manufacturing processes, in particular to a pneumatic riveting tool for reed contacts.

Background

The reed is an important component part in a travel switch, and a silver contact on the reed is combined with the beryllium bronze reed in a riveting mode. The riveting state of the contacts and the quality of the finished product directly influence the electrical performance of the switch. According to the current scientific research production condition, hundreds of reeds in each batch of travel switches need to be riveted by contacts. According to the prior art, the spring leaf to-be-riveted contact riveting process is performed by a bench worker in a combined mode, the working efficiency is low, the yield of finished products is only about 80%, and the technical requirements on workers are high.

Disclosure of utility model

(1) Purpose(s)

The utility model mainly aims to solve the problems of low efficiency and low qualification rate of finished products during manual riveting.

(2) Technical proposal

The utility model provides a reed contact pneumatic riveting frock, its characterized in that is used for riveting reed contact combination, reed contact combination is including by riveting reed 6 and a plurality of contact 3 that wait to rivet, and by riveting the reed 6 and be circular arc piece, a plurality of contact 3 that wait to rivet are located the tip of a plurality of rectangular that stretch out from circular arc one side respectively, and it includes the anchor clamps part that sets up the reed that has reed special fixture 9 on base 14 and the pneumatic tool part that has solenoid valve 11 and cylinder 12, wait to rivet by reed 6 and wait to rivet contact 3 and fix on base 14 through reed special fixture 9, utilize solenoid valve 11 control cylinder 12 dashes and rivets.

Further, the electromagnetic valve 11 is a two-position three-way electromagnetic valve, and the cylinder 12 is a single-acting piston cylinder.

Further, the cylinder 12 and the electromagnetic valve 11 are fixed on a bracket 10 arranged on a cylinder of the base 14, the bracket 10 can move up and down on the cylinder of the base 14 to control the position of a punch below the cylinder 12 in the vertical direction, and can also rotate around the axis of the cylinder to finely adjust the projection position of the punch on the base 14.

Further, the riveting device further comprises a limiting block, and the lower limit of the movement of the cylinder 12 is adjusted by the limiting block before riveting of the bracket 10 so as to achieve the purpose of controlling the final height of the riveting head.

Further, the riveting tool further comprises a universal fixture combination 15, a tool plate 1 and a bracket 10, wherein the universal fixture combination 15 is movably arranged on the base 14 and used for fixing the tool plate 1 and the reed special fixture 9, and the tool plate 1, the reed special fixture 9 and the reed special fixture 9 are matched to form a special tool for fixing the riveted reed 6 and the contact 3 to be riveted.

Further, the circuit system comprises a solenoid valve 11, a foot switch 17 and a photoelectric switch 13 which are sequentially connected, when the solenoid valve is not in work, the foot switch 17 is normally open, the solenoid valve 11 is closed, the photoelectric switch 13 is arranged on the bracket 10, when no barrier exists below the photoelectric switch 13, the photoelectric switch 13 is normally closed, a high-level signal is output, the solenoid valve 11 can be transmitted by stepping down the foot switch 17, and otherwise, the solenoid valve 11 cannot work normally.

Further, the pneumatic circuit is composed of a cylinder 12, an electromagnetic valve 11 and a speed regulating valve 16 which are sequentially connected, when the electromagnetic valve 11 is positioned at the left position, an air source is communicated with the cylinder 12, and the cylinder 12 starts to work; when the electromagnetic valve 11 is positioned at the right position, the air cylinder 12 is connected with the atmosphere, and the spring in the air cylinder 12 automatically resets. The speed valve 16 is used to control the speed of the cylinder 12.

Further, the special clamp 9 for the spring plate comprises an elastic gasket 4, a supporting frame 5, a screw and a tail clamp 8, the riveted spring plate 6 is positioned by the supporting frame 5 and the tail clamp 8 and clamped by the tail screw, the upper cylinder of the supporting frame 5 is tangent to the inner wall of the riveted spring plate 6, the vertical direction position of the riveted spring plate 6 is fixed, the horizontal direction position of the riveted spring plate 6 is fixed by the tail clamp 8, the riveted spring plate 6 is wrapped and limited to axially rotate around the vertical paper surface, and the supporting frame 5 is fixed on the tooling plate 1 by the screw.

Further, the support frame 5 is limited with the tooling plate 1 through a dovetail groove structure, the displacement of the support frame 5 in the vertical direction is limited, an elastic gasket 4 is pressed between the support frame 5 and the tooling plate 1, the support frame 5 is tightly pressed through a screw, and the fine adjustment of the position of the support frame 5 in the horizontal direction is realized through adjusting the tightness of the screw.

Further, the universal fixture assembly 15 can randomly adjust the relative position of the horizontal plane of the flat tongs on the base 14, and the alignment of the punching and riveting points is completed in cooperation with the rotation of the bracket 10.

(3) Effects of

The utility model is applicable to the riveting process of the reed contact of the travel switch, replaces the traditional manual riveting by a mechanized means, has quite high consistency of finished product size, improves the qualification rate from 80% to about 98% and has the characteristics of simple structure, convenient operation, small processing error and the like.

Drawings

Figure 1 is a diagram of the external form of a reed contact combination of the present utility model;

FIG. 2 is an outline view of a contact to be riveted (not riveted) according to the present utility model;

FIG. 3 is a cross-sectional view of the rivet head profile of the contact to be riveted according to the present utility model;

Fig. 4 is an external view of the reed contact pneumatic riveting tool of the present utility model;

FIG. 5 is a schematic circuit diagram of the present utility model;

FIG. 6 is a pneumatic circuit diagram of the present utility model;

fig. 7 is an external view of a reed-dedicated jig of the present utility model;

Figure 8 is a diagram showing the assembly relationship of the reed-specific clamp of the present utility model.

Reference numerals illustrate:

1-a tooling plate; 2-hexagon socket head cap screw; 3-contact to be riveted; 4-an elastic gasket; 5-a support frame; 6-riveted reed; 7-slotted pan head screw; 8, tail clip; 9-a reed special clamp; 10-a bracket; 11-an electromagnetic valve; 12-an air cylinder; 13—a photoelectric switch 13; 14-a base; 15-universal clamp combination; 16-a speed regulating valve; 17-foot switch.

Detailed Description

The utility model provides a reed contact pneumatic riveting tool, and a specific embodiment of the utility model is further described in detail below with reference to the accompanying drawings.

The reed contact pneumatic riveting tool can replace manual operation, realizes single riveting, provides higher efficiency and qualification rate, and simultaneously has corresponding safety protection measures.

Figure 1 is a view of the reed contact assembly of the present utility model, the reed contact assembly being shown in figure 1. As shown in fig. 1, the reed contact combination of the present utility model includes a riveted reed 6 and a plurality of contacts 3 to be riveted, the riveted reed 6 being a circular arc-shaped piece, the plurality of contacts 3 to be riveted being respectively located at ends of a plurality of long strips extending from one side of the circular arc.

Fig. 2 is a profile view of a contact to be riveted (not riveted) according to the present utility model, and a profile view of a contact to be riveted 3 before riveting is shown in fig. 2. As shown in FIG. 2, the contact 3 to be riveted has a ball cone at the lower part, a height of 1.5 and a ball radius of 0.6, and a ball cone at the upper partA cylinder 0.8 high.

Fig. 3 is a cross-sectional view of the external shape of the rivet head of the contact to be riveted, and the cross-sectional view of the external shape of the finished product after the contact to be riveted 3 is shown in fig. 3. As shown in FIG. 3, the height of the rivet head cylinder is pressed to 0.45 + -0.02 mm after the completion of the riveting.

The pneumatic riveting tool for the reed contact is a set of combined tool, is reformed on the basis of the original manual riveting tool, and comprises a clamp part and a pneumatic tool part of the reed. The reed 6 to be riveted and the contact 3 to be riveted are fixed on the base 14 through the reed special clamp 9, and are supported by hands instead of hands. The electromagnetic valve 11 is used for controlling the cylinder 12 to punch and rivet, so that the action of hammering the punch and riveting during manual operation is replaced.

The tool comprises the following components:

Fig. 4 is an appearance diagram of the reed contact pneumatic riveting tool of the utility model, and the appearance diagram of the tool is shown in fig. 4. As shown in fig. 4, the reed contact pneumatic riveting tool mainly comprises a base 14, a universal fixture combination 15, a tool plate 1, a reed special fixture 9, a bracket 10, an electromagnetic valve 11, an air cylinder 12 and a photoelectric switch 13. Wherein, the universal fixture combination 15 is movably arranged on the base 14 and is used for fixing the tooling plate 1 and the reed special fixture 9. The tooling plate 1 is matched with the reed special fixture 9 to form a special tooling for fixing the riveted reed 6 and the contact 3 to be riveted. In a preferred embodiment, the electromagnetic valve 11 is a two-position three-way electromagnetic valve, the cylinder 12 is a single-acting piston cylinder, and the photoelectric switch 13 is a PNP photoelectric switch.

Specific assembly relation:

As shown in fig. 4, the upper half has the position of the cylinder 12, the solenoid valve 11, and the photoelectric switch 13 fixed by the bracket 10. The material of the bracket 10 is 1Cr18Ni9Ti. The bracket 10 and the cylinder 12 are connected by 4M 8 bolts. The bracket 10 is connected with the photoelectric switch 13 by two M3 screws. The bracket 10 is connected with the electromagnetic valve 11 by two M4 screws.

The support 10 is movable up and down on the cylinder of the base 14 to control the position of the punch below the cylinder 12 in the vertical direction, and is also rotatable about the cylinder axis to fine tune the projected position of the punch on the base 14. The bracket 10 and the base 14 are fastened by two M10 bolts.

The lower half part comprises a universal clamp combination 15 for clamping the combination of the tooling plate 1, the reed special clamp 9 and the part to be riveted (the riveted reed 6 and the contact 3 to be riveted). The universal fixture combination 15 can randomly adjust the relative position of the flat tongs on the horizontal plane of the base 14, and the calibration of the punching and riveting points is completed by matching with the rotation of the bracket 10.

The appearance diagram and the assembly relation diagram of the special clamp for the reed are shown in fig. 7 and 8.

Fig. 7 is an external view of a reed-dedicated jig according to the present utility model. As shown in fig. 7, the reed special clamp 9 of the present utility model is composed of an elastic spacer 4, a supporting frame 5, a screw and a tail clamp 8. In the embodiment of FIG. 7, the screws include slotted pan head screws 7 (M3×8 GB/T67-2000) and hexagon socket head cap screws 2 (M3×10 GB/T70.1-2000).

Figure 8 is a diagram showing the assembly relationship of the reed-specific clamp of the present utility model. As shown in fig. 8, the riveted reed 6 is positioned by the support 5 and the tail clip 8, and is clamped by the slotted pan head screw 7 with the tail portion M3 x 8. The supporting frame 5 and the tail clamp 8 are both made of polyimide YS-20 (Q/GHAE 19) material, and the tooling plate 1 is made of 45 steel. The upper cylinder of the supporting frame 5 is tangent to the inner wall of the riveted reed 6, the vertical position of the riveted reed 6 is fixed, and the tail clamp 8 fixes the horizontal position of the riveted reed 6 and wraps the riveted reed 6 to limit the axial rotation of the riveted reed around the vertical paper surface. The support frame 5 is fixed on the tooling plate 1 by the M3 multiplied by 10 hexagon socket head cap screw 2, and is limited with the tooling plate 1 by a dovetail groove structure, so that the displacement of the support frame 5 in the vertical and vertical paper surface directions is limited. An elastic gasket 4 is pressed between the support frame 5 and the tooling plate 1, the hexagonal cylindrical head screw 2 in the M3 is used for pressing, and the fine adjustment of the position of the support frame 5 in the horizontal direction is realized through the tightness of the adjusting screw, so that the horizontal position of the small hole on the riveted reed 6 on the tooling plate 1 is adjusted. The material of the elastic pad 4 is silicone rubber 6144 (HG 6-678-1974).

In addition, the reed contact pneumatic riveting tool also comprises a speed regulating valve 16, a foot switch 17, a photoelectric switch 13 and a limiting block. The height of the bracket 10 of the air cylinder 12 can be vertically adjusted on the base 14, and the bracket 10 utilizes a limiting block to adjust the lower limit of the movement of the air cylinder 12 before riveting so as to achieve the aim of controlling the final height of the riveting head.

The whole tool comprises a circuit system and a pneumatic loop system.

Fig. 5 is a schematic circuit diagram of the present utility model. As shown in fig. 6, the circuit system of the present utility model includes a solenoid valve 11, a foot switch 17, and a photo switch 13 connected in sequence. The optoelectronic switch 13 is preferably a PNP optoelectronic switch. The foot switch 17 in the whole circuit system is controlled by human beings, and when the circuit system does not work, the foot switch 17 is normally open, and the electromagnetic valve 11 is closed. The support 10 is provided with a photoelectric switch 13 to avoid injury to an operator caused by the start of the operation of the cylinder 12 when the hand of the operator is below the cylinder 12. When no obstacle exists below the photoelectric switch 13, the photoelectric switch 13 is normally closed, a high-level signal is output, and the pedal switch 17 can transmit an electric signal to the electromagnetic valve 11 when being stepped down. When an operator debugs the tool and the product, the hand blocks the detection signal of the photoelectric switch 13, 0V is output at the moment, the pedal switch 17 is stepped down and cannot transmit a high-level signal, and the electromagnetic valve 11 cannot work normally, so that the safety of the operator is protected.

Fig. 6 is a pneumatic circuit diagram of the present utility model. As shown in fig. 6, the pneumatic circuit of the utility model is composed of a cylinder 12, an electromagnetic valve 11 and a speed regulating valve 16 which are sequentially connected, when the electromagnetic valve 11 is positioned at the left position, an air source is communicated with the cylinder 12, and the cylinder 12 starts to work; when the electromagnetic valve 11 is positioned at the right position, the air cylinder 12 is connected with the atmosphere, and the spring in the air cylinder 12 automatically resets. The speed valve 16 is used to control the speed of the cylinder 12.

The specific operation mode is as follows:

The operator places the contact 3 to be riveted on the tooling plate 1, fixes the riveted reed 6 by the reed special clamp 9, the foot switch sends out a high level signal, the electromagnetic valve 11 is positioned at the left position, and the cylinder 12 starts the punching riveting action. After reaching the lower limit of the piston movement, the operator releases the switch, the electromagnetic valve 11 is positioned at the right position, and the spring in the cylinder 12 automatically returns.

After the riveting of one contact 3 to be riveted is completed, an operator unscrews an M3X 8 screw on the special clamp 9 for the reed, withdraws the tail clamp 8, rotates the riveted reed 6 and simultaneously places a new contact 3 to be riveted, and tightens the tail clamp 8 (the moment is not more than 0.8 Nm) after adjusting the position of the riveted reed 6 to continue the riveting work of the next contact 3 to be riveted.

It should be noted that the foregoing is merely illustrative and explanatory of the utility model, and that any modifications and substitutions of the utility model will be apparent to those skilled in the art, and are intended to be within the scope of the utility model.

Claims

1. The utility model provides a reed contact pneumatic riveting frock, its characterized in that is used for riveting reed contact combination, reed contact combination is including by riveting reed (6) and a plurality of piece of waiting to rivet contact (3), is riveted reed (6) and is convex piece, and a plurality of contact (3) of waiting to rivet are located respectively from the tip of a plurality of rectangular that stretches out of circular arc one side, and it includes the anchor clamps part that sets up the reed that has reed special fixture (9) on base (14) and has the pneumatic tool part of solenoid valve (11) and cylinder (12), by riveting reed (6) and waiting to rivet contact (3) pass through reed special fixture (9) are fixed on base (14), utilize solenoid valve (11) control cylinder (12) to dash and rivet.

2. The reed contact pneumatic riveting tool according to claim 1, wherein the electromagnetic valve (11) is a two-position three-way electromagnetic valve, and the cylinder (12) is a single-acting piston cylinder.

3. The reed contact pneumatic riveting tool according to claim 1, wherein the cylinder (12) and the electromagnetic valve (11) are fixed on a bracket (10) arranged on a cylinder of the base (14), the bracket (10) can move up and down on the cylinder of the base (14) to control the position of a punch below the cylinder (12) in the vertical direction, and can also rotate around the axis of the cylinder to finely adjust the projection position of the punch on the base (14).

4. A reed contact pneumatic riveting tool as claimed in claim 3, further characterised in that the stopper and the bracket (10) are arranged to control the final height of the rivet head by adjusting the lower limit of movement of the cylinder (12) with the stopper prior to riveting.

5. The reed contact pneumatic riveting tool according to claim 1, further comprising a universal fixture combination (15), a tool plate (1) and a bracket (10), wherein the universal fixture combination (15) is movably arranged on a base (14) and is used for fixing the tool plate (1) and the reed special fixture (9), and the tool plate (1), the reed special fixture (9) and the reed special fixture (9) are matched to form the special tool for fixing the riveted reed (6) and the contact (3) to be riveted.

6. The reed contact pneumatic riveting tool according to claim 1, wherein the circuit system comprises an electromagnetic valve (11), a foot switch (17) and a photoelectric switch (13) which are sequentially connected, the foot switch (17) is normally open when the electromagnetic valve is not in operation, the electromagnetic valve (11) is closed, the photoelectric switch (13) is arranged on the bracket (10), when no obstacle exists below the photoelectric switch (13), the photoelectric switch (13) is normally closed, a high-level signal is output, the electric signal can be transmitted to the electromagnetic valve (11) when the foot switch (17) is stepped down, and otherwise the electromagnetic valve (11) cannot normally operate.

7. The reed contact pneumatic riveting tool according to claim 1, wherein the pneumatic circuit is composed of a cylinder (12), an electromagnetic valve (11) and a speed regulating valve (16) which are sequentially connected, when the electromagnetic valve (11) is positioned at the left position, an air source is communicated with the cylinder (12), and the cylinder (12) starts to work; when the electromagnetic valve (11) is positioned at the right position, the air cylinder (12) is connected with the atmosphere, the spring in the air cylinder (12) automatically resets, and the speed regulating valve (16) is used for controlling the speed of the air cylinder (12).

8. The reed contact pneumatic riveting tool according to claim 1, wherein the reed special fixture (9) comprises an elastic gasket (4), a support frame (5), a screw and a tail clamp (8), the riveted reed (6) is positioned by the support frame (5) and the tail clamp (8) and clamped by the tail screw, a cylinder on the support frame (5) is tangent to the inner wall of the riveted reed (6), the vertical direction position of the riveted reed (6) is fixed, the horizontal direction position of the riveted reed (6) is fixed by the tail clamp (8) and the riveted reed (6) is wrapped to limit the axial rotation around a vertical paper surface, and the support frame (5) is fixed on the tool plate (1) by the screw.

9. The reed contact pneumatic riveting tool according to claim 8, wherein the support frame (5) and the tool plate (1) are limited through a dovetail groove structure, the displacement of the support frame (5) in the vertical direction is limited, an elastic gasket (4) is pressed between the support frame (5) and the tool plate (1), the support frame is tightly pressed through a screw, and fine adjustment of the position of the support frame (5) in the horizontal direction is realized through tightness of an adjusting screw.

10. A reed contact pneumatic riveting tool as described in claim 3 wherein the

The universal fixture combination (15) can randomly adjust the relative position of the horizontal plane of the flat tongs on the base (14),

And (5) matching with the rotation of the bracket (10) to finish the calibration of the punching and riveting point.