Anti-reversing device for pressing and riveting metal shaft
By designing an anti-reverse device, the correct installation of the metal shaft is achieved by utilizing the shape difference and conductivity characteristics of the metal shaft, thus solving the problem of reverse placement of the metal shaft, improving production efficiency and yield, and reducing costs.
Patent Information
- Application Number
- CN202423090402.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In traditional mold installation, metal shafts are easily placed in the wrong direction, leading to defective products and affecting production efficiency and costs.
Design an anti-reverse device that utilizes the shape difference and conductivity of the two ends of a metal shaft. By connecting the limit stop pin assembly in series with the machine control switch, it prevents the metal shaft from being installed in the correct direction. This ensures that the circuit is open. When the metal shaft is installed in the correct direction, the top of the metal shaft contacts the spring pin to form a control circuit. When the machine tool start switch is pressed, the machine tool descends and the riveting is completed.
It effectively prevents human error, improves the yield of finished products, ensures installation accuracy, reduces costs, and enhances safety.
Smart Images
Figure CN223670607U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould processing technical field especially a device for preventing reverse for the rivet metal axle and device. BACKGROUND
[0002] The installation of the mould in the traditional production assembly process mainly relies on manual naked eye identification of the axle clamping bad end downward (normal) and is put into the rivet mould, if the operator puts the axle clamping bad end upward (reverse) into the rivet mould, it is difficult to find, the next work station produces the finished product and flows into the customer end, causes the customer to be unable to assemble, in order to avoid this kind of phenomenon, through the analysis of the physical characteristics and the appearance characteristics of the axle, the key feature elements are utilized, and the best improvement effect is realized with the minimum manufacturing cost.
[0003] Therefore, it is necessary to design a reverse prevention structure that can improve the accuracy of mould installation, improve work efficiency and reduce production cost CONTENT OF THE UTILITY MODEL
[0004] In order to solve the existing problems, the utility model provides a device for preventing reverse for the rivet metal axle.
[0005] In order to realize the purpose of the utility model, the specific technical scheme of the utility model is as follows:
[0006] A device for preventing reverse for the rivet metal axle, including spacing needle assembly, metal axle assembly, upper die plate assembly and lower die plate assembly, the upper die plate assembly is arranged directly above the lower die plate assembly, the metal axle assembly includes the metal axle installed above the lower die plate assembly, the spacing needle assembly includes the first protective shell, the first insulating sleeve and the elastic needle, the first protective shell is internally provided with the first insulating sleeve, the elastic needle is installed in the first insulating sleeve, the metal axle is arranged directly above the elastic needle, and the wire is arranged in the elastic needle; when the metal axle is installed in the normal direction, the bottom of the metal axle is in contact with the wire in the elastic needle, and the circuit is conducted at this time; when the metal axle is installed in the reverse direction, the bottom of the metal axle is not in contact with the wire in the elastic needle, and the circuit is not conducted at this time.
[0007] Based on the above technical scheme, further, the spacing needle assembly further includes the second protective shell and the second insulating sleeve, the second protective shell is internally provided with the second insulating sleeve, and the first protective shell and the second protective shell are connected, and the bottom of the first insulating sleeve abuts against the top of the second insulating sleeve.
[0008] Based on the above technical scheme, further, the spacing needle assembly further includes the first spring and the second spring, the first spring is sleeved outside the first protective shell and the second protective shell, the second spring is arranged in the second insulating sleeve, one end of the second spring abuts against the bottom of the elastic needle, and the other end of the second spring abuts against the bottom of the second insulating sleeve.
[0009] Based on the above technical scheme, further, the upper die plate assembly comprises an upper die plate, an upper fixed plate and a punch; wherein the upper fixed plate is installed on the upper die plate, and the punch is installed on the upper fixed plate.
[0010] Based on the above technical scheme, further, the lower die plate assembly comprises a lower die positioning plate, a lower die seat, a second lower die backing plate and an insulation plate; wherein the lower die positioning plate, the lower die seat, the second lower die backing plate and the insulation plate are installed in sequence from top to bottom.
[0011] Based on the above technical scheme, further, the second lower die backing plate is provided with a positioning groove, the bottom of the second protective shell is provided with a positioning convex piece, and the positioning convex piece is installed in the positioning groove.
[0012] Based on the above technical scheme, further, the lower die plate assembly further comprises a lower die plate and a first lower die backing plate, the lower die positioning plate is provided with a positioning groove, the first lower die backing plate is installed in the positioning groove, and the lower die plate is installed at the upper end of the first lower die backing plate.
[0013] Based on the above technical scheme, further, the upper die plate in the upper die plate assembly and the lower die seat in the lower die plate assembly are fixedly connected through a supporting column, and the upper die plate is located directly above the lower die seat.
[0014] Based on the above technical scheme, further, the metal shaft assembly further comprises a shaft bushing, and the shaft bushing is sleeved on the metal shaft; and the lower die plate assembly further comprises a press-in metal piece, and the press-in metal piece is sleeved on the shaft bushing.
[0015] Based on the above technical scheme, further, the top end of the first protective shell is provided with a first limiting through hole and a second limiting through hole, wherein the first limiting through hole is a trapezoidal section, the second limiting through hole is a rectangular section, and the first limiting through hole and the second limiting through hole are communicated.
[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0017] The utility model discloses a metal shaft two ends shape difference (metal shaft one end has the inclination feature, one end is the circular arc structure feature), through its metal conductive characteristic, with machine tool downlink control switch series connection to realize the function of preventing the metal shaft from being installed reversely. When installing forward, the top end of the metal shaft contacts the elastic ejector pin to form a control circuit, and the machine tool is pressed down to complete the press-in. When installing reversely, the top end of the metal shaft cannot contact the elastic ejector pin, and the control circuit cannot be formed, so that the machine tool cannot be pressed down. The utility model can effectively intercept the personnel misoperation to lead to the production of defective products, improve the production of good product rate, and has the advantages of safe and reliable use, stable structure, simple structure, low cost, convenient maintenance and the like. The machining precision can reach within 0.01mm. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of the device of the present application;
[0019] Figure 2 is a schematic diagram of the partial structure of the device of the present application without the upper die plate and the lower die positioning plate;
[0020] Figure 3 is a first perspective view of the device of the present application omitting part of the structure;
[0021] Figure 4 is a second perspective view of the device of the present application omitting part of the structure;
[0022] Figure 5 is a third perspective view of the device of the present application omitting part of the structure;
[0023] Figure 6 is a fourth perspective view of the device of the present application omitting part of the structure;
[0024] Figure 7 is a schematic diagram of the partial structure of the device of the present application when the metal shaft is installed in the forward direction;
[0025] Figure 8 is a schematic diagram of the partial structure of the device of the present application when the metal shaft is installed in the reverse direction.
[0026] REFERENCE NUMERALS:
[0027] 1, upper die plate; 2, upper fixed plate; 3, male die; 4, press riveting metal piece; 5, shaft bushing; 6, metal shaft; 7, lower die plate; 8, lower die positioning plate; 9, first lower die backing plate; 10, first spring; 11, lower die seat; 12, second lower die backing plate; 13, insulating plate; 14, support column; 15, first protective shell; 16, second protective shell; 17, first insulating sleeve; 18, second insulating sleeve; 19, spring ejector pin; 20, second spring; 21, positioning protrusion; 22, wire; 23, first limiting through hole; 24, second limiting through hole; 25, bolt. DETAILED DESCRIPTION
[0028] The present application will be further described and explained with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment in the present application can be combined accordingly without conflict.
[0029] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below. The technical features in each embodiment of the present application can be combined accordingly without conflict, provided that there is no conflict.
[0030] In the description of the present application, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, that is, there is an intermediate element. In contrast, when an element is referred to as being "directly" connected to another element, there is no intermediate element.
[0031] In the description of the present application, it should be understood that the terms "first", "second" are only used for distinguishing purposes of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.
[0032] Embodiment
[0033] In combination Figures 1-8 As shown in the drawings, the present application provides a kind of for the anti-reverse device of metal shaft 6 of pressure riveting, including limiting needle blocking component, metal shaft 6 component, upper die plate component and lower die plate component, upper die plate component is located in the upper of lower die plate component, metal shaft 6 component and limiting needle blocking component are all installed on lower die plate component, and metal shaft 6 component and limiting needle blocking component are butt joint installation.
[0034] In the embodiment, the upper die plate component includes upper die plate 1, upper fixed plate 2 and male die 3;Wherein, at least one fixed groove is arranged on the lower end surface of upper die plate 1, one upper fixed plate 2 is installed in each fixed groove, one mounting hole is arranged on each upper fixed plate 2, and one male die 3 is installed in each mounting hole.
[0035] In this embodiment, the lower die plate assembly includes a lower die plate 7, a lower die positioning plate 8, a first lower die backing plate 9, a lower die seat 11, a second lower die backing plate 12, an insulating plate 13 and a press-in metal piece 4; wherein the lower die positioning plate 8, the lower die seat 11, the second lower die backing plate 12 and the insulating plate 13 are placed in order from top to bottom, the lower die seat 11 is provided with a first mounting groove, and the lower die positioning plate 8 can be fixed in the first mounting groove of the lower die seat 11 by using common structures such as bolts 25; the second lower die backing plate 12 is provided with a second mounting groove, and the lower die seat 11 can be fixed in the second mounting groove of the second lower die backing plate 12 by using common structures such as bolts 25, or the second lower die backing plate 12 can be fixed on the insulating plate 13 by using common structures such as bolts 25. It should be noted that the press-in metal piece 4 can be a metal cup.
[0036] Further, the upper die plate 1 in the upper die plate assembly and the lower die seat 11 in the lower die plate assembly are fixedly connected through the support column 14, the upper die plate 1 is located directly above the lower die seat 11, and the punch 3, the press-in metal piece 4 and the lower die plate 7 are installed between the upper die plate 1 and the lower die seat 11.
[0037] Still further, the lower die positioning plate 8 is provided with a positioning groove, and the first lower die backing plate 9 is installed in the positioning groove, wherein the lower die plate 7 is installed at the upper end of the first lower die backing plate 9.
[0038] In this embodiment, the metal shaft 6 assembly includes a metal shaft 6 and a shaft bushing 5, the metal shaft 6 is externally sleeved with the shaft bushing 5, and the shaft bushing 5 is externally sleeved with the lower die plate 7. The first lower die backing plate 9 is provided with a through hole, the lower end of the metal shaft 6 extends into the through hole of the first lower die backing plate 9, and the bottom end of the shaft bushing 5 externally sleeved with the metal shaft 6 abuts against the upper end of the first lower die backing plate 9; the shaft bushing 5 is externally sleeved with the press-in metal piece 4.
[0039] In this embodiment, the limiting needle blocking assembly includes a first protective shell 15, a second protective shell 16, a first insulating sleeve 17, a second insulating sleeve 18, a spring-loaded needle 19, a first spring 10 and a second spring 20; wherein the bottom of the first protective shell 15 is provided with an external thread structure, the inner wall of the upper part of the second protective shell 16 is provided with an internal thread structure, the first protective shell 15 and the second protective shell 16 are threadedly connected through the corresponding internal and external thread structures, the first protective shell 15 and the second protective shell 16 are externally provided with the first spring 10, the upper end of the first spring 10 is connected to the first lower die backing plate 9, and the lower end of the first spring 10 is connected to the lower die seat 11.
[0040] Further, the first protective shell 15 is provided with a first insulation sleeve 17, and the second protective shell 16 is provided with a second insulation sleeve 18; the bottom of the first insulation sleeve 17 abuts the top of the second insulation sleeve 18. The first insulation sleeve 17 is provided with a first limiting cavity, and the second insulation sleeve 18 is provided with a second limiting cavity, and the first limiting cavity and the second limiting cavity are communicated, a spring needle 19 is installed in the first limiting cavity, and a second spring 20 is installed in the second limiting cavity, and one end of the second spring 20 abuts the bottom of the spring needle 19, and the other end of the second spring 20 abuts the bottom of the second insulation sleeve 18. The bottom of the second insulation sleeve 18 is provided with a through hole, and the through hole is communicated with the second limiting cavity in the second insulation sleeve 18. In some embodiments, the second lower die base plate 12 can also be provided with a positioning groove, and the bottom of the second protective shell 16 is provided with a positioning convex piece 21, and the positioning convex piece 21 is fitted and installed in the positioning groove. It should be noted that the positioning convex piece 21 can be a positioning structure composed of a plurality of positioning rings or a plurality of positioning rings.
[0041] In the embodiment, the second lower die base plate 12 is provided with a through hole, one end of a wire 22 enters the through hole from the outside of the second lower die base plate 12 and sequentially passes through the second protective shell 16, the second insulation sleeve 18, the second spring 20, the spring needle 19 inside and extends to the top end of the first protective shell 15, and a metal shaft 6 is provided above the top end of the first protective shell 15, and the other wire 22 passes through any position of the second lower die base plate 12. Specifically, the top end of the first protective shell 15 is provided with a first limiting through hole 23 and a second limiting through hole 24, wherein the first limiting through hole 23 is a trapezoidal section, the second limiting through hole 24 is a rectangular section, and the first limiting through hole 23 and the second limiting through hole 24 are communicated. The bottom of the metal shaft 6 is provided with a first limiting part and a second limiting part which are adapted to the shape of the first limiting through hole 23 and the second limiting through hole 24, that is, the first limiting part is trapezoidal, the second limiting part is rectangular, and the first limiting part and the second limiting part are integrally formed, and the other end of the metal shaft 6 is provided with a structure with a circular arc R angle feature, which means that the adjacent two corners of the rectangle are provided with a circular arc structure.
[0042] In this embodiment, the part extending into the first limiting through hole 23 is used to verify whether the metal shaft 6 is installed accurately, when the installation is accurate, the metal shaft 6 is just fitted with the first limiting through hole 23, that is, the bottom of the metal shaft 6 contacts the top of the extended spring ejector pin 19 to form a circuit conduction, so that the machine works normally, specifically, when the circuit is conducted, the current starts from the wire 22 current input end installed on the second lower die base plate 12, and then passes through the lower die seat 11, the lower die positioning plate 8, the lower die plate 7, the shaft bushing 5 and the metal shaft 6, since the bottom of the metal shaft 6 contacts the top of the spring ejector pin 19 when the circuit is conducted, the current flowing through the metal shaft 6 is transmitted to the wire 22 passing through the spring ejector pin 19 and then is led out to the outside; when the installation is incorrect (the metal shaft 6 is installed reversely), since the other end of the metal shaft 6 with the circular arc structure is not fitted with the shape of the first limiting through hole 23, the other end of the metal shaft 6 cannot contact the top of the extended spring ejector pin 19, and thus a closed conduction circuit cannot be formed, that is, the circuit is in an open circuit state, and thus the machine cannot be started to work. Figure 1 As shown, the arrow direction is the circuit conduction state.
[0043] The working principle of the structure is as follows:
[0044] First, the metal shaft 6 is installed in the forward direction, that is, the end of the metal shaft 6 with the trapezoidal shape is downward, at this time, the lower end of the metal shaft 6 contacts the head of the spring ejector pin 19, and the wire 22 of the machine starting control line is connected, the starting switch is pressed, the machine works to press the metal shaft 6 into the hole in the middle of the press-in metal part 4, and the press-in is completed. When the metal shaft 6 is installed reversely, that is, the end of the metal shaft 6 with the circular arc feature is downward, since the first limiting part on the spring ejector pin 19 makes the metal shaft 6 unable to contact the spring ejector pin 19, a closed path cannot be formed, and thus the machine cannot be started to descend.
[0045] The above is only an embodiment of the present application, which is described in detail, but it cannot be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.
Claims
1. An anti-reverse device for swaging a metal shaft, the device comprising: The injection molding machine comprises a limiting needle blocking assembly, a metal shaft assembly, an upper mold plate assembly and a lower mold plate assembly, the upper mold plate assembly is arranged directly above the lower mold plate assembly; The metal shaft assembly comprises a metal shaft which is arranged above the lower mold plate assembly, The limiting needle blocking assembly comprises a first protective shell, a first insulating sleeve and a spring needle, the first insulating sleeve is arranged in the first protective shell, the spring needle is arranged in the first insulating sleeve, a metal shaft is arranged directly above the spring needle, and a wire is arranged in the spring needle; When the metal shaft is installed in a forward direction, the bottom of the metal shaft is in contact with the wire in the spring needle, and at this time, the circuit is in conduction; when the metal shaft is installed in a reverse direction, the bottom of the metal shaft is not in contact with the wire in the spring needle, and at this time, the circuit is not in conduction.
2. A back-off device for use in swaging a metal shaft as defined in claim 1, wherein The limiting needle blocking assembly further comprises a second protective shell and a second insulating sleeve, the second insulating sleeve is arranged in the second protective shell, and the first protective shell and the second protective shell are connected, the bottom of the first insulating sleeve abuts against the top of the second insulating sleeve.
3. A back-off device for use in swaging a metal shaft as defined in claim 2, wherein The limiting needle blocking assembly further comprises a first spring and a second spring, the first spring is arranged outside the first protective shell and the second protective shell, the second spring is arranged inside the second insulating sleeve, one end of the second spring abuts against the bottom of the spring needle, and the other end of the second spring abuts against the bottom of the second insulating sleeve.
4. A back-off device for use in swaging a metal shaft as defined in claim 3, wherein The upper mold plate assembly comprises an upper mold plate, an upper fixed plate and a male die, the upper fixed plate is arranged on the upper mold plate, and the male die is arranged on the upper fixed plate.
5. A back-off device for use in swaging a metal shaft as defined in claim 4, wherein The lower mold plate assembly comprises a lower mold positioning plate, a lower mold base, a second lower mold gasket and an insulating plate, the lower mold positioning plate, the lower mold base, the second lower mold gasket and the insulating plate are arranged in sequence from top to bottom.
6. A back-off device for use in swaging a metal shaft as defined in claim 5, wherein A positioning groove is arranged on the second lower mold gasket, the bottom of the second protective shell is sleeved with a positioning protrusion, and the positioning protrusion is arranged in the positioning groove.
7. A back-off device for use in swaging a metal shaft as defined in claim 5, wherein The lower mold plate assembly further comprises a lower mold plate and a first lower mold gasket, a positioning groove is arranged on the lower mold positioning plate, the first lower mold gasket is arranged in the positioning groove, and the upper end of the first lower mold gasket is arranged with the lower mold plate.
8. A back-off device for use in swaging a metal shaft as defined in claim 7, wherein The upper mold plate in the upper mold plate assembly and the lower mold base in the lower mold plate assembly are fixedly connected through a supporting column, and the upper mold plate is arranged directly above the lower mold base.
9. A back-off device for use in swaging a metal shaft as defined in claim 7, wherein The metal shaft assembly further comprises a shaft bushing which is sleeved on the metal shaft, and the lower mold plate assembly further comprises a press-in metal piece which is sleeved on the shaft bushing.
10. A back-off device for use in swaging a metal shaft as defined in claim 1, wherein A first limiting through hole and a second limiting through hole are arranged at the top end of the first protective shell, the first limiting through hole is in a trapezoidal cross section, the second limiting through hole is in a rectangular cross section, and the first limiting through hole and the second limiting through hole are in communication.