Shrapnel assembly jig

Abstract

A shrapnel assembly jig is composed of a control mechanism, an actuator and a safety protector, wherein the actuator is a core component, and is composed of a driving device, a contour positioning block and a shrapnel insert block. The two ends of the contour positioning block are fixed to a bracket by elastic components. The contour positioning block is provided with a channel for inserting shrapnel. A plane and an inclined surface are provided on the inner side of the channel. The plane and the inclined surface are opposite to each other. The shrapnel insert block is fixed to the bottom of the driving device. The driving device is used to drive the shrapnel insert block and the contour positioning block to move downward until the shrapnel is compressed into the plastic shell slot. The specially designed inclined surface and plane of the contour positioning block of the present invention ensure that the shrapnel can be automatically compressed to a shape that can be normally assembled. The assembly process takes about 1 second, which ensures the service life of the shrapnel. Therefore, the present invention solves the problem of low yield rate and production efficiency of manually assembled shrapnel in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of assembly jigs, and in particular to a spring assembly jig. The present invention is particularly suitable for assembling springs dedicated to remote controllers, and during assembly, the springs can be automatically pressed into a plastic shell slot, which is convenient for operation. Background Art

[0002] With the continuous development of modern technology, the application of industrial automation control technology in my country has become more and more popular, and great progress has been made in the application of automation. The difference between industrial automation technology and traditional manual machinery is that it liberates labor, improves production efficiency, and promotes the improvement of production quality.

[0003] There is a flip-top design in the remote control plastic shell. Figure 5-7 As shown, the flip cover 9 and the plastic shell 10 are connected in a flip-cover type by two rotating shafts 19 and a spring 11. However, at present, the assembly of the plastic shell of this flip-cover remote control is completed by manual assembly. First, the two rotating shafts 19 need to be installed at the hinge point 22 of the plastic shell 10 and the flip cover 9, and then the spring 11 is clamped with tweezers and aligned with the slot 23 on the plastic shell 10 (see Figure 7 ), and use a special "C"-shaped tool (not shown) to compress the elastic arm 21 of the spring piece 11 and insert it into the slot 23 (see Figure 5 When the flip cover 9 is opened, the flip cover 9 is manually turned over and the spring sheet 11 is compressed through all the tangent planes on the rotating shaft 19; when the flip cover 9 is closed, the spring sheet 11 provides an elastic force for automatic closing to the flip cover 9 through the tangent planes on the rotating shaft 19 (see Figure 5 , Figure 6 ).

[0004] In the assembly of the plastic shell of a flip-top remote control, high efficiency and high yield are important indicators to support the profitability of enterprises. However, the current manual assembly process of the shrapnel is not only inefficient and labor-intensive in industrial mass production, but also extremely difficult due to the small size of the shrapnel 11 and the narrow assembly space. The elastic arm 21 of the shrapnel 11 needs to be compressed during assembly, which ultimately leads to the fact that this work has not been automatically or semi-automatically assembled. In the manual assembly process, the elastic arm 21 of the shrapnel 11 is often plastically deformed due to excessive force applied to clamp the shrapnel 11, which weakens the elastic force of the shrapnel 11 and causes the performance of the product to decline. In addition, in order to increase the assembly speed, some workers in the manual assembly deliberately compress the elastic arm 21 of the shrapnel 11 into plastic deformation before assembly, which also greatly reduces the elastic force of the shrapnel 11.

[0005] In view of this, how to design a fixture suitable for automatic or semi-automatic assembly of flip-type remote control plastic shell shrapnel is the research topic of the present invention. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a spring piece assembly jig, which solves the problems of high defective product rate and low production efficiency caused by manual operation.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a spring assembly fixture, including three major parts: a control mechanism, an actuator and a safety protector.

[0008] The safety protector comprises a photoelectric sensor switch.

[0009] The control structure includes a power supply, a push button switch, a relay and a solenoid valve.

[0010] The actuator mainly comprises a contour positioning block, a spring insert block and a driving device.

[0011] The innovation lies in that: a station for positioning the groove is provided on the fixture bracket, and a linear sliding track is provided on the bracket corresponding to the station; the actuator is composed of a profiling positioning block, a spring piece inserting block and a driving device, the profiling positioning block is a guide component for placing the spring piece, the guide component is slidably positioned on the linear sliding track, a first elastic component is provided between the profiling positioning block and the bracket, the elastic component forces the profiling positioning block to leave the station; the profiling positioning block is provided with a channel for inserting the spring piece, and from the effective longitudinal section of the channel, one side of the channel is a first plane, and the other side is an inclined surface connected to the second plane, thereby forming A combination of a wedge-shaped channel and a parallel channel, and the small end of the wedge-shaped channel is directly connected to one end of the parallel channel, and the other end of the parallel channel is facing the workstation; the spring piece plug block is a pressing component used to push the spring piece placed in the channel, and the pressing component is slidably positioned on the linear sliding track, and a second elastic component is provided between the spring piece plug block and the contoured positioning block or the bracket, and the spring piece plug block is provided with a plug for the channel and the spring piece, and the plug is located at the large end of the wedge-shaped channel; the driving device is a manual or electric or pneumatic or hydraulic driving mechanism, and the driving mechanism has a driving end, and the driving end acts on the spring piece plug block.

[0012] There are two stages in the assembly process:

[0013] In the first stage, the spring piece is first placed at the large end of the wedge-shaped channel of the profiling positioning block, and the spring arm of the spring piece is fitted to one side of the inclined surface of the profiling positioning block. Two rotating shafts are respectively inserted into the two hinge points of the plastic shell and the flip cover so that the flip cover can be opened and closed normally, and then the plastic shell is placed in the groove of the bracket base;

[0014] In the second stage, a driving device is used to press the spring insert block and the contoured positioning block equipped with the spring downward together. When pressed to the lowest point, the spring is installed in the slot of the plastic shell. Then the spring insert block and the contoured positioning block return to their initial positions when not working. The spring arm of the spring is placed between the rotating shaft and the slot, so that there is elastic force between the flip cover and the plastic shell and it can be closed automatically.

[0015] The relevant contents of the present invention are explained as follows:

[0016] 1. In the above scheme, the first elastic component and the second elastic component can be one of a spring, a spring, an airbag, rubber, and a sponge. The elastic component here mainly plays the role of restoring the contoured positioning block pressed to the bottom to its initial position when not working. Any component that can play this role is applicable to the present invention.

[0017] 2. In the above scheme, the rotating shaft mainly plays the role of hinged connection between the plastic shell and the flip cover. The plastic shell and the flip cover have two hinge points. The first part of the rotating shaft faces outward, and the fifth part faces the inside of the plastic shell. One side of the first part of the rotating shaft is a cylindrical surface and the other side is a plane. It is mainly used to fit the flip cover so that the flip angle of the flip cover can reach a maximum of 180°; the two sides of the third part are designed as tangent planes to fit the spring sheet. When the flip cover is opened, the rotating shaft is driven to rotate, and the rotating shaft squeezes the spring sheet and has elastic force; the fourth part is a cone, and the fifth part is a cylinder. The main purpose of these two parts is to fix the rotating shaft and prevent the rotating shaft from moving left and right in the plastic shell.

[0018] 3. In the above scheme, a connecting piece extending outward perpendicularly to the spring piece is provided in the middle of the spring piece, and a mounting hole is provided on the connecting piece, the purpose of which is to fix the spring piece on the plastic shell.

[0019] 4. In the above scheme, the groove is located at the base of the bracket, and the groove fits with the plastic shell, which can play a role in positioning the plastic shell.

[0020] 5. In the above scheme, the driving device can be a pneumatic cylinder or an electric cylinder, which mainly plays the role of driving the spring piece plug-in block to move downward to the lowest point and then pulling the spring piece plug-in block back to the initial position. Any component that can play this role is suitable for the present invention.

[0021] 6. In the above scheme, the longitudinal section refers to the section taken along the length direction of the channel.

[0022] The design principle and technical conception of the present invention are as follows: in order to solve the problem of high defective rate and low production efficiency caused by manual installation of spring pieces, the present invention designs a jig for fully automatic installation of spring pieces, the core components of which mainly include a spring piece plug-in block and a contour positioning block, elastic components are provided at both ends of the contour positioning block and the bracket, the elastic components force the contour positioning block to leave the work station, the contour positioning block is provided with a channel for inserting spring pieces, from the longitudinal cross-section of the channel, one side of the channel is a first plane, and the other side is an inclined surface connected to the second plane, thereby forming a combination of a wedge-shaped channel and a parallel channel, and the small end of the wedge-shaped channel is directly connected to one end of the parallel channel, and the other end of the parallel channel is directly facing the work station; the spring piece plug-in block is a top pressing component used to push the spring piece placed in the channel, the top pressing component is slidably positioned on the linear sliding track, a second elastic component is provided between the spring piece plug-in block and the contour positioning block or the bracket, and a plug for the channel and the spring piece is provided on the spring piece plug-in block, and the plug is located at the large end of the wedge-shaped channel. The assembly process presents the following two stages: in the first stage, the spring clip is first placed at the large end of the wedge-shaped channel of the contoured positioning block, the spring arm of the spring clip fits on one side of the inclined surface of the contoured positioning block, and two rotating shafts are respectively inserted at the two hinge points of the plastic shell and the flip cover, so that the flip cover can be opened and closed normally, and then the plastic shell is placed in the groove of the bracket base; in the second stage, the driving device is used to press the spring clip block and the contoured positioning block with the spring clip downward together, and when it is pressed to the lowest point, the spring clip is installed in the slot of the plastic shell, and then the spring clip block and the contoured positioning block are restored to their initial positions when not working, and the spring arm of the spring clip is placed between the rotating shaft and the slot, so that there is elastic force between the flip cover and the plastic shell and it can be closed automatically.

[0023] Due to the application of the above scheme, the present invention has the following advantages and effects compared with the prior art:

[0024] During the assembly process of the plastic shell, installing the spring clip is a routine operation. In the prior art, the installation of the spring clip is often achieved manually with the help of tweezers and wrenches. Manual installation, on the one hand, may cause the elasticity of the spring clip to deteriorate or even be damaged due to excessive operating force, and on the other hand, it is too inefficient. The present invention uses the combined use of the contoured positioning block and the spring clip insert block in the core component to automatically compress the spring clip to a shape that can be assembled normally during the action process, and the entire action process takes about 1 second. Through reasonable structural design, the number of actuating cylinders used is reduced, the formation time is shortened, and the loss of elastic force caused by long-term compression of the spring clip is avoided. In short, the present invention has played a positive role in production efficiency and yield rate in the field of assembly of spring clips specifically for plastic shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attached Figure 1 This is a stereoscopic diagram of Embodiment 1 of the shrapnel assembly jig of the present invention;

[0026] Attached Figure 2This is a three-dimensional diagram of the shrapnel assembly jig embodiment 1 of the present invention after the shrapnel is assembled;

[0027] Attached Figure 3 This is a schematic diagram of Embodiment 1 of the shrapnel assembly jig of the present invention;

[0028] Attached Figure 4 This is a schematic diagram of a contour positioning block of Example 1 of a spring assembly jig of the present invention;

[0029] Attached Figure 5 This is a state diagram of the shrapnel assembly jig embodiment 1 of the present invention after the plastic shell is assembled;

[0030] Attached Figure 6 This is a three-dimensional diagram of the shrapnel assembly jig embodiment 1 of the present invention after the plastic shell is assembled;

[0031] Attached Figure 7 This is a schematic diagram of the shrapnel assembly jig embodiment 1 of the present invention after the plastic shell is assembled;

[0032] In the above drawings: 1. driving device; 2. push button switch; 3. photoelectric induction switch; 4. solenoid valve; 5. relay; 6. power supply; 7. bracket; 8. base; 9. flip cover; 10. plastic shell; 11. spring; 12. contoured positioning block; 13. spring insert block; 14. first plane; 15. inclined plane; 16. notch; 17. second plane; 18. channel; 19. rotating shaft; 20. mounting hole; 21. spring arm; 22. hinge point; 23. slot; 24. groove. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0034] Embodiment 1: A shrapnel assembly fixture

[0035] like Figure 1-Figure 4 As shown, the shrapnel assembly jig includes three parts: a control mechanism, an actuator and a safety protector. For the assembled shrapnel 11 and the groove 24, the shrapnel assembly jig includes a bracket 7 and an actuator, wherein the bracket 7 is provided with a station for positioning the groove 24, and a linear sliding track is provided on the bracket 7 corresponding to the station;

[0036] The actuator is composed of a profiling positioning block 12, a spring piece inserting block 13 and a driving device 1. The profiling positioning block 12 is a guide component for placing the spring piece 11, and the guide component is slidably positioned on the linear sliding track. A first elastic component is provided between the profiling positioning block 12 and the bracket 7, and the elastic component forces the profiling positioning block 12 to leave the station; the profiling positioning block 12 is provided with a channel 18 for inserting the spring piece 11. From the longitudinal section of the channel 18, one side of the channel 18 is a first plane 14, and the other side is an inclined surface 15 connected to the second plane 17, thereby forming a combination of a wedge-shaped channel and a parallel channel, and the wedge The small end of the wedge-shaped channel is directly connected to one end of the parallel channel, and the other end of the parallel channel is opposite to the workstation; the spring piece plug block 13 is a pressing component for pushing the spring piece 11 placed in the channel 18, and the pressing component is slidably positioned on the linear sliding track. A second elastic component is provided between the spring piece plug block 13 and the contoured positioning block 12 or the bracket 7. The spring piece plug block 13 is provided with a plug for the channel 18 and the spring piece 11, and the plug is located at the large end of the wedge-shaped channel; the driving device 1 is a manual, electric, pneumatic or hydraulic driving mechanism, which has a driving end, and the driving end acts on the spring piece plug block 13.

[0037] There are two stages in the plastic shell assembly process:

[0038] In the first stage, the spring piece 11 is first placed at the upper end of the wedge-shaped channel 18 of the profiling positioning block, and the spring arm 21 of the spring piece 11 is attached to one side of the inclined surface 15 of the profiling positioning block. Two rotating shafts 19 are respectively inserted into the two hinge points 22 of the plastic shell 10 and the flip cover 9 so that the flip cover 9 can be opened and closed normally. Then, the assembled plastic shell 10, flip cover 9 and rotating shaft 19 are placed in the groove 24 of the base 8;

[0039] In the second stage, the driving device 1 is used to press the spring insert block 13 and the contoured positioning block 12 equipped with the spring 11 downward together. When pressed to the lowest point, the spring 11 is installed in the slot 23 of the plastic shell 10. Then the spring insert block 13 and the contoured positioning block 12 are restored to their initial positions when not working. The spring arm 21 of the spring is placed between the rotating shaft 19 and the slot 23, so that there is elastic force between the flip cover 9 and the plastic shell 10 and it can be automatically closed.

[0040] The state after the plastic shell 10 and the flip cover 9 are assembled is as follows Figure 5 and Figure 6 When using the remote controller, the flip cover 9 is manually flipped 180° to make it in the same plane as the plastic shell 10. After use, due to the elastic force of the spring sheet 11, the flip cover 9 is moved and automatically closed.

[0041] The first elastic component and the second elastic component are components with compressibility and resilience, such as springs, shrapnel, airbags, rubber or sponges. One end of the elastic component acts on the bracket, and the other end acts on the profiling positioning block 12, and the profiling positioning block 12 can be suspended at 1 / 3 of the bottom of the bracket (see Figure 2 ).

[0042] The rotating shaft 19 is composed of five parts, such as Figure 7 As shown, one side of the first part is a cylindrical surface and the other side is a plane, the second part is a cylindrical surface, and both sides of the third part are tangent planes; the fourth part is a cone; the fifth part is a cylinder; the first part of the rotating shaft 19 is engaged with the hinge point 22 of the flip cover 9, so that the flip cover 9 can be turned up to 180°. The spring piece 11 is integrally formed, with "U"-shaped corners at both ends, and a connecting piece extending outward perpendicularly to the spring piece is provided in the middle of the spring piece, and a mounting hole 20 is provided on the connecting piece; the notch 16 in the middle of the plane 14 of the profiling positioning block is used to squeeze the spring piece 11 downward, and the spring piece mounting hole 20 can smoothly pass through the profiling positioning block 12, the groove 24 of the bracket base 8 is in contact with the front cover 9, and the bracket 7 is fixed on the base 8. The driving device 1 is a cylinder or an electric cylinder or other power device, which is mainly used to drive the spring piece plug block 13 to press the spring piece 11 at the channel 18 of the profiling positioning block 12 downward, so as to automatically compress the spring piece 11 into the card slot 23 of the plastic shell 10. In this embodiment, the driving device 1 is a cylinder. The control structure includes a power supply 6, a button switch 2, a relay 5 and a solenoid valve 4. The safety protector is a photoelectric sensor switch 3 (see Figure 1 ), or can be replaced by other substitutes that can play the same role.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A shrapnel assembly jig, characterized in that: With respect to the assembled spring piece (11) and the slot (23), the spring piece assembly jig comprises a bracket (7) and an actuator, wherein: The support (7) is provided with a station for positioning the slot (23), and a linear sliding track is provided on the support (7) corresponding to the station; The actuator comprises a profiling positioning block (12), a spring piece inserting block (13) and a driving device (1); the profiling positioning block (12) is a guide component for placing the spring piece (11); the guide component is slidably positioned on the linear sliding track; a first elastic component is provided between the profiling positioning block (12) and the bracket (7); the elastic component forces the profiling positioning block (12) to leave the working position; the profiling positioning block (12) is provided with a channel (18) for inserting the spring piece (11); from the longitudinal cross section of the channel (18), one side of the channel (18) is a first plane (14), and the other side is an inclined surface (15) connected to the second plane (17), thereby forming a wedge-shaped channel and a parallel channel. The combination comprises a wedge-shaped channel with a small end directly connected to one end of a parallel channel, and the other end of the parallel channel faces the workstation; the spring piece plug block (13) is a pressing component for pushing the spring piece (11) placed in the channel (18), and the pressing component is slidably positioned on the linear sliding track; a second elastic component is provided between the spring piece plug block (13) and the contoured positioning block (12) or the bracket (7); a plug for the channel (18) and the spring piece (11) is provided on the spring piece plug block (13), and the plug is located at the large end of the wedge-shaped channel; the driving device (1) is a manual, electric, pneumatic or hydraulic driving mechanism, and the driving mechanism has a driving end, and the driving end acts on the spring piece plug block (13); The first elastic component and the second elastic component are springs, leaf springs, air bags, rubber or sponges; one end of the first elastic component acts on the contour positioning block (12), and the other end acts on the bracket (7); one end of the second elastic component acts on the leaf spring insert block (13), and the other end acts on the contour positioning block (12) or the bracket (7); The first plane (14) is provided with a notch (16), and the notch (16) is used to enable the mounting hole (20) of the spring sheet (11) to smoothly pass through the contoured positioning block (12) when the spring sheet (11) is pushed downward.

2. The spring assembly jig according to claim 1, characterized in that: The bracket (7) comprises a base (8), the base (8) being provided with a groove (24), the groove (24) being fitted with the flip cover (9).

3. The spring assembly jig according to claim 1, characterized in that: It also includes a control structure, which includes a power supply (6), a button switch (2), a relay (5) and a solenoid valve (4).

4. The spring assembly jig according to claim 1, characterized in that: It also includes a safety protector, which includes a photoelectric sensor switch (3).

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