Manufacturing Method of the Limit Structure of the Copper Strip for the Socket with Stretching and Reverse Riveting

Abstract

The present invention discloses a stretching and reverse riveting limiting structure for a socket copper strip and a manufacturing method thereof. The stretching and reverse riveting limiting structure for the socket copper strip includes a connecting strip and at least two main body parts; the connecting strip includes a main strip plate and at least two fixing plates, the at least two fixing plates are bent and horizontally extended from the side edge of the main strip plate and are arranged at intervals along the extending direction of the main strip plate, and fixing holes are formed through the upper and lower surfaces of each fixing plate; the at least two main body parts are arranged at intervals along the extending direction of the main strip plate, and each main body part includes a connecting plate, and contact feet are bent and extended downward at both ends of the connecting plate. By providing fixing holes and connecting sleeves, and using the connecting sleeves to pass upward through the fixing holes and be reversely riveted and fixed on the upper surface of the fixing plates, the traditional way of locking screws is replaced, the product manufacturing and assembly are more convenient, the production efficiency is effectively improved, and the stability of the assembled product is better.

Description

Technical Field

[0001] The present invention relates to the technical field of socket strips, and in particular to a manufacturing method for a stretching and reverse riveting limit structure of a copper strip of a socket strip. Background Art

[0002] A socket strip is a multi - pin socket with a wire, commonly known as a power strip or socket strip, and scientifically named a wire lengthening component or an extension cord socket. A socket strip refers to a multi - pin socket with a power cord and a plug that can be moved. It can connect more than one power plug, saving both space and wiring.

[0003] Usually, each socket strip has multiple groups of contact pins. In order to enable the multiple groups of contact pins to be connected in parallel, a connecting strip is usually provided to connect the corresponding contact pins of each group of contact pins. In the prior art, the connecting strip and the contact pins are usually assembled and connected by screws. This assembly method first requires tapping the connecting strip or the contact pins, and then manually screwing the screws, which is very troublesome to assemble, has low efficiency, and the product assembly firmness is not good, and situations such as screw loosening are likely to occur. Therefore, it is necessary to improve the copper strip in the current socket strip. Summary of the Invention

[0004] In view of this, in view of the deficiencies existing in the prior art, the main purpose of the present invention is to provide a stretching and reverse riveting limit structure of a copper strip of a socket strip and its manufacturing method, which can effectively solve the problems of troublesome assembly, low efficiency, and poor firmness in the assembly of the contact pins and the connecting strip in the existing socket strip by using screw assembly.

[0005] To achieve the above - mentioned purpose, the present invention adopts the following technical solutions:

[0006] A stretching and reverse riveting limit structure of a copper strip of a socket strip includes a connecting strip and at least two main body parts; the connecting strip includes a main strip board and at least two fixing plates, the at least two fixing plates are bent and horizontally extended from the side edge of the main strip board and are arranged at intervals along the extending direction of the main strip board, and through - holes are formed through the upper and lower surfaces of each fixing plate; the at least two main body parts are arranged at intervals along the extending direction of the main strip board, each main body part includes a connecting board, contact pins are bent and extended downward at both ends of the connecting board, and a positioning hole is formed on the upper and lower surfaces of one end of the connecting board, and a connecting sleeve is formed by stretching the upper edge of the positioning hole upward, and the connecting sleeve passes upward through the through - hole and is reversely riveted and fixed on the upper surface of the fixing plate.

[0007] As a preferred solution, the through - hole is a round hole, a limiting notch is formed at the edge of the through - hole, the connecting sleeve is cylindrical before riveting, and after riveting, part of the connecting sleeve is pressed into the limiting notch for fixation.

[0008] As a preferred solution, there are three fixing plates arranged at intervals, and correspondingly, there are three main body parts arranged at intervals.

[0009] As a preferred solution, the bent connection between the contact feet and the connecting plate is concave on the outside and convex on the inside, and a reinforcing rib is formed on the inner side of the main body.

[0010] As a preferred solution, the main strip plate is concave on the outside and convex on the inside, and a reinforcing rib is formed on the inner side of the main strip plate, and the reinforcing rib extends along the extending direction of the main strip plate.

[0011] A manufacturing method of a stretching and reverse riveting limit structure for a socket copper strip. A riveting press is used to rivet the connecting sleeve. The riveting press includes a frame, a fixture, a punch device, a first driving device and a second driving device; the frame has a workbench, and a guide groove is arranged on the workbench; the fixture is arranged in the guide groove so as to be movable back and forth, and the fixture has a first positioning groove for positioning the connecting belt and a second positioning groove for positioning the main body; the punch device is arranged on the frame so as to be movable up and down, and the punch device is located directly above the rear end of the guide groove; the first driving device is arranged on the frame and drives the fixture to move back and forth; the second driving device is arranged on the frame and drives the punch device to move up and down; during work, the following steps are included:

[0012] (1) The first driving device moves the fixture forward to the front end of the guide groove. Then, the main body is placed in the second positioning groove for positioning, and then the connecting belt is placed in the first positioning groove for positioning, so that the connecting sleeve extends upward through the fixing hole.

[0013] (2) The first driving device moves the fixture backward to the rear end of the guide groove, so that the fixture is located directly below the punch device.

[0014] (3) The second driving device drives the punch device to move downward, so that the punch device performs reverse riveting on the connecting sleeve, and the connecting sleeve is fixed on the upper surface of the fixing plate.

[0015] (4) The second driving device drives the punch device to reset upward, and then the first driving device moves the fixture forward to the front end of the guide groove, and then the final product can be taken out.

[0016] As a preferred solution, the fixture includes a substrate, a plurality of front positioning seats and a plurality of rear positioning seats; the plurality of front positioning seats are arranged left and right and fixed on the substrate, and the front and rear end surfaces of each front positioning seat are recessed with the aforementioned second positioning groove, and the two contact feet of each main body are respectively inserted into the corresponding second positioning groove, and a positioning post adapted to the aforementioned positioning hole is arranged on each front positioning seat; the plurality of rear positioning seats are fixed on the substrate behind the front positioning seats, and the aforementioned first positioning groove is located on the rear positioning seats.

[0017] As a preferred solution, an active top block is provided on the front side of each front positioning seat. The active top block is located in the second positioning groove on the front side, and the active top block is driven by a spring to press against the contact feet on the front side.

[0018] As a preferred solution, the punch device includes a movable seat, a plurality of positioning sleeves, a plurality of main punches and a plurality of sub-punches; the movable seat is arranged on the frame so as to be movable up and down; the plurality of positioning sleeves are arranged at intervals and fixed on the bottom surface of the movable seat; the plurality of main punches are respectively located in the corresponding positioning sleeves and fixedly connected to the movable seat, and the lower end of each main punch protrudes from the lower end surface of the positioning sleeve; the plurality of sub-punches are respectively located in the corresponding positioning sleeves and fixedly connected to the movable seat, each sub-punch is combined with the corresponding main punch, and the lower end of the sub-punch does not protrude from the lower end surface of the positioning sleeve.

[0019] As a preferred solution, the first driving device is a cylinder, and the second driving device is a hydraulic cylinder.

[0020] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0021] First, by providing a fixing hole and a connecting sleeve, and using the connecting sleeve to pass upward through the fixing hole and be reversely riveted and fixed on the upper surface of the fixing plate, the traditional method of locking screws is replaced, the product manufacturing and assembly are more convenient, the production efficiency is effectively improved, and the stability of the product after assembly is better.

[0022] Second, by providing a limiting notch at the edge of the fixing hole, and using the fact that part of the connecting sleeve is pressed into the limiting notch after riveting for fixation, the connecting belt and the main body part cannot rotate, so that the product structure is more stable.

[0023] To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional assembly schematic diagram of the product in the preferred embodiment of the present invention;

[0025] Figure 2 is an exploded view of the product in the preferred embodiment of the present invention;

[0026] Figure 3 is a three-dimensional schematic diagram of the riveting device in the preferred embodiment of the present invention;

[0027] Figure 4 is a cross-sectional schematic diagram of the riveting device in the preferred embodiment of the present invention;

[0028] Figure 5 is Figure 4Enlarged schematic view;

[0029] Figure 6 It is a three-dimensional schematic view of the product not installed on the fixture in the preferred embodiment of the present invention;

[0030] Figure 7 It is a three-dimensional schematic view of the product installed on the fixture in the preferred embodiment of the present invention;

[0031] Figure 8 It is a cross-sectional schematic view of the product installed on the fixture in the preferred embodiment of the present invention.

[0032] Explanation of the attached drawing reference numerals:

[0033] 10. Connecting belt 11. Main belt plate

[0034] 12. Fixed plate 101. Fixed hole

[0035] 102. Limiting notch 103. Reinforcing rib

[0036] 20. Main body part 21. Connecting plate

[0037] 22. Contact foot 23. Connecting sleeve

[0038] 201. Positioning hole 202. Reinforcing rib

[0039] 30. Frame 31. Workbench

[0040] 301. Guide groove 40. Fixture

[0041] 41. Substrate 42. Front positioning seat

[0042] 43. Rear positioning seat 44. Positioning column

[0043] 45. Movable top block 46. Spring

[0044] 401. First positioning groove 402. Second positioning groove

[0045] 50. Punch device 51. Movable seat

[0046] 52. Positioning sleeve 53. Main punch

[0047] 54. Sub-punch 60. First driving device

[0048] 70. Second driving device. Detailed implementation manners

[0049] Please refer to Figures 1 to 8 shown, which shows the specific structure of a pull and reverse rivet limiting structure for a socket copper strip in a preferred embodiment of the present invention, including a connecting belt 10 and at least two main body parts 20.

[0050] The connecting belt 10 is made of copper. It includes a main belt plate 11 and at least two fixing plates 12. The at least two fixing plates 12 are bent and horizontally extended from the side edge of the main belt plate 11 and are arranged at intervals along the extending direction of the main belt plate 11. Fixing holes 101 are formed through the upper and lower surfaces of each fixing plate 12; in this embodiment, there are three fixing plates 12 arranged at intervals, which is not limited; the fixing holes 101 are round holes, and limiting notches 102 are formed at the edges of the fixing holes 101; in addition, the main belt plate 11 is concave outward and convex inward, and reinforcing ribs 103 are formed on the inner side surface of the main belt plate 11. The reinforcing ribs 103 extend along the extending direction of the main belt plate 11 to enhance the structure of the connecting belt 10.

[0051] The at least two main bodies 20 are made of copper and are arranged at intervals along the extending direction of the main belt plate 11. Each main body 20 includes a connecting plate 21. Contact feet 22 are bent and extended downward at both ends of the connecting plate 21. A positioning hole 201 is formed through the upper and lower surfaces at one end of the connecting plate 21. A connecting sleeve 23 is formed by stretching the upper edge of the positioning hole 201 upward. The connecting sleeve 23 passes upward through the fixing hole 101 and is reversely riveted and fixed on the upper surface of the fixing plate 12. In this embodiment, there are three main bodies 20 arranged at intervals. The bent connection part between the contact feet 22 and the connecting plate 21 is concave outward and convex inward, and reinforcing ribs 202 are formed on the inner side surface of the main body 20. Before riveting, the connecting sleeve 23 is cylindrical, and after riveting, part of the connecting sleeve 23 is pressed into the limiting notch 102 for fixation.

[0052] The present invention also discloses a manufacturing method of the above-mentioned socket copper strip stretching and reverse riveting limiting structure. A riveting device is used to rivet the connecting sleeve 23. The riveting device includes a machine frame 30, a fixture 40, a punch device 50, a first driving device 60, and a second driving device 70.

[0053] The machine frame 30 has a workbench 31, and a guide groove 301 is provided on the workbench 31.

[0054] The jig 40 is disposed in the guide groove 301 so as to be movable back and forth, and the jig 40 has a first positioning groove 401 for positioning the connecting belt 10 and a second positioning groove 402 for positioning the main body member 20; specifically, the jig 40 includes a substrate 41, a plurality of front positioning seats 42 and a plurality of rear positioning seats 43; the plurality of front positioning seats 41 are arranged left and right and fixed on the substrate 41, and the front and rear end surfaces of each front positioning seat 42 are recessed with the aforementioned second positioning groove 402, and the two contact feet 22 of each main body member 20 are respectively inserted into the corresponding second positioning groove 402, and a positioning post 44 adapted to the aforementioned positioning hole 201 is provided on each front positioning seat 42; the plurality of rear positioning seats 43 are fixed on the substrate 41 behind the front positioning seats 42, and the aforementioned first positioning groove 401 is located on the rear positioning seats 43. Moreover, an active ejector block 45 is provided on the front side of each front positioning seat 42, the active ejector block 45 is located in the second positioning groove 402 on the front side, and the active ejector block 45 is driven by a spring 46 to press against the contact foot 22 on the front side.

[0055] The punch device 50 is disposed on the frame 30 so as to be movable up and down, and the punch device 50 is directly above the rear end of the guide groove 301; specifically, the punch device 50 includes a movable seat 51, a plurality of positioning sleeves 52, a plurality of main punches 53 and a plurality of sub-punches 54; the movable seat 51 is disposed on the frame 30 so as to be movable up and down; the plurality of positioning sleeves 52 are arranged at intervals and fixed on the bottom surface of the movable seat 51; the plurality of main punches 53 are respectively located in the corresponding positioning sleeves 52 and fixedly connected to the movable seat 51, and the lower end of each main punch 53 protrudes from the lower end surface of the positioning sleeve 52; the plurality of sub-punches 54 are respectively located in the corresponding positioning sleeves 52 and fixedly connected to the movable seat 51, each sub-punch 54 is combined with the corresponding main punch 53, and the lower end of the sub-punch 54 does not protrude from the lower end surface of the positioning sleeve 52.

[0056] The first driving device 60 is disposed on the frame 30 and drives the jig 40 to move back and forth; the second driving device 70 is disposed on the frame 30 and drives the punch device 50 to move up and down; in this embodiment, the first driving device 60 is a cylinder, the first driving device 60 is fixed to the rear side of the frame 30, and the second driving device 70 is a hydraulic cylinder.

[0057] During operation, the following steps are included:

[0058] (1) The first driving device 60 moves the jig 40 forward to the front end of the guide groove 301, then, the main body member 20 is placed in the second positioning groove 402 for positioning, and then the connecting belt 10 is placed in the first positioning groove 401 for positioning, so that the connecting sleeve 23 extends upward through the fixing hole 101.

[0059] (2)The first driving device 60 moves the jig 40 backward to the rear end of the guide groove 301, so that the jig 40 is located directly below the punch device 50.

[0060] (3)The second driving device 70 drives the punch device 50 to move downward, so that the punch device 50 performs reverse riveting on the connecting sleeve 23. During the downward movement of the punch device 50, the lower end of the main punch 53 first extends into the connecting sleeve 23, and then the lower end of the positioning sleeve 52 presses against and positions on the fixing plate 12 and the connecting plate 21. When the punch device 50 is pressed down in place, the lower end of the sub-punch 54 presses a part of the connecting sleeve 23 into the limiting notch 102, so that the connecting sleeve 23 is fixed on the upper surface of the fixing plate 12 and cannot rotate.

[0061] (4)The second driving device 70 drives the punch device 50 to reset upward, and then the first driving device 60 moves the jig 40 forward to the front end of the guide groove 301, and then the final product can be taken out.

[0062] The design focus of the present invention is as follows: First, by providing a fixing hole and a connecting sleeve, the connecting sleeve passes upward through the fixing hole and is fixed on the upper surface of the fixing plate by reverse riveting, replacing the traditional method of screwing. The product manufacturing and assembly are more convenient, effectively improving the production efficiency, and the stability of the product after assembly is better. Second, by providing a limiting notch at the edge of the fixing hole, and fixing the connecting sleeve by pressing a part of it into the limiting notch after riveting, the connecting belt and the main body part cannot rotate, so that the product structure is more stable.

[0063] The above are only the preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A manufacturing method of a stretching and reverse riveting limit structure for a socket copper strip, characterized in that: The copper strip stretching and reverse riveting limit structure of the socket strip includes a connecting strip and at least two main components; the connecting strip includes a main strip board and at least two fixing plates, the at least two fixing plates are bent and horizontally extended from the side edge of the main strip board and are arranged at intervals along the extending direction of the main strip board, and fixing holes are formed through the upper and lower surfaces of each fixing plate; the at least two main components are arranged at intervals along the extending direction of the main strip board, each main component includes a connecting board, contact feet are bent and extended downward at both ends of the connecting board, and a positioning hole is formed in the upper and lower surfaces of one end of the connecting board, and a connecting sleeve is formed by stretching the upper edge of the positioning hole upward, and the connecting sleeve passes through the fixing hole upward and is reversely riveted and fixed on the upper surface of the fixing plate; the bent connection part between the contact foot and the connecting board is concave-convex, and a reinforcing rib is formed on the inner side surface of the main component; the main strip board is concave-convex, and a reinforcing rib is formed on the inner side surface of the main strip board, and the reinforcing rib extends along the extending direction of the main strip board; During production, a riveting device is used to rivet the connecting sleeve. The riveting device includes a machine frame, a fixture, a punch device, a first driving device and a second driving device; the machine frame has a workbench, and a guide groove is arranged on the workbench; the fixture is arranged in the guide groove so as to be movable back and forth, and the fixture has a first positioning groove for positioning the connecting strip and a second positioning groove for positioning the main component; the punch device is arranged on the machine frame so as to be movable up and down, and the punch device is located directly above the rear end of the guide groove; the first driving device is arranged on the machine frame and drives the fixture to move back and forth; the second driving device is arranged on the machine frame and drives the punch device to move up and down; during work, the following steps are included: (1) The first driving device moves the fixture forward to the front end of the guide groove. Then, the main component is placed in the second positioning groove for positioning, and then the connecting strip is placed in the first positioning groove for positioning, so that the connecting sleeve passes through the fixing hole upward and extends upward; (2) The first driving device moves the fixture backward to the rear end of the guide groove, so that the fixture is located directly below the punch device; (3) The second driving device drives the punch device to move downward, so that the punch device reversely rivets the connecting sleeve, and the connecting sleeve is fixed on the upper surface of the fixing plate; (4) The second driving device drives the punch device to reset upward, and then the first driving device moves the fixture forward to the front end of the guide groove, and then the final product can be taken out.

2. The manufacturing method of the socket copper strip stretching and reverse riveting limit structure according to claim 1, characterized in that: The fixing hole is a round hole, and a limiting notch is formed on the edge of the fixing hole. Before riveting, the connecting sleeve is cylindrical, and after riveting, part of the connecting sleeve is pressed into the limiting notch for fixation.

3. The manufacturing method of the socket copper strip stretching and reverse riveting limit structure according to claim 1, characterized in that: There are three fixing plates arranged at intervals, and correspondingly, there are three main components arranged at intervals.

4. The manufacturing method of the socket copper strip stretching and reverse riveting limit structure according to claim 1, characterized in that: The fixture includes a substrate, a plurality of front positioning seats and a plurality of rear positioning seats; the plurality of front positioning seats are arranged left and right and fixed on the substrate, and the second positioning grooves are recessed on the front and rear end surfaces of each front positioning seat, and the two contact feet of each main component are respectively inserted into the corresponding second positioning grooves, and a positioning post adapted to the positioning hole is arranged on each front positioning seat; the plurality of rear positioning seats are fixed on the substrate behind the front positioning seats, and the first positioning groove is located on the rear positioning seats.

5. The manufacturing method of the socket copper strip stretching and reverse riveting limit structure according to claim 4, characterized in that: A movable ejector block is provided on the front side of each front positioning seat. The movable ejector block is located in the second positioning groove on the front side, and the movable ejector block is driven by a spring to press against the contact feet on the front side.

6. The manufacturing method of the socket copper strip stretching and reverse riveting limit structure according to claim 1, characterized in that: The punch device includes a movable seat, a plurality of positioning sleeves, a plurality of main punches, and a plurality of sub-punches; the movable seat is arranged on the frame so as to be movable up and down; the plurality of positioning sleeves are arranged at intervals and fixed on the bottom surface of the movable seat; the plurality of main punches are respectively located in the corresponding positioning sleeves and fixedly connected to the movable seat, and the lower end of each main punch protrudes from the lower end surface of the positioning sleeve; the plurality of sub-punches are respectively located in the corresponding positioning sleeves and fixedly connected to the movable seat, each sub-punch is combined with the corresponding main punch, and the lower end of the sub-punch does not protrude from the lower end surface of the positioning sleeve.

7. The manufacturing method of the socket copper strip stretching and reverse riveting limit structure according to claim 1, characterized in that: The first driving device is a cylinder, and the second driving device is a hydraulic cylinder.

Images