CN216096019U

CN216096019U - High-concentricity riveting device

Info

Publication number: CN216096019U
Application number: CN202121373556.7U
Authority: CN
Inventors: 王永琪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-03-22
Anticipated expiration: 2031-06-21

Abstract

A high-concentricity riveting device is characterized in that a fixed shaft is arranged in a mounting hole of a shell or on a copper sleeve in the mounting hole, the riveting device comprises an upper die, a lower die, a driving device, a shaft feeding device and a material pushing device, a discharge hole is formed in the material pushing device, a riveting shaft is arranged on the material pushing device, the upper die and the lower die are used for positioning and fixing a material belt during processing, the riveting shaft is pressed downwards, the riveting shaft ejects out the fixed shaft aligned with the feed hole, and the lower end of the ejected fixed shaft is arranged in the mounting hole of the shell or on the copper sleeve in the mounting hole. The utility model adopts the form that the material belt is matched with the die, and the positioning is carried out by combining the positioning hole and the conical positioning needle, so that the accurate alignment of the material belt during the processing is effectively ensured, and the matching of the pushing device and the shaft feeding device is matched, the concentricity between the fixed shaft and the shell of the processed product is high, the verticality is good, the zero-to-zero alignment matching is realized, the air tightness of the product is further ensured, the quality of the product is effectively improved, the whole processing process does not need manual participation, the automation degree is high, and the production efficiency is effectively improved.

Description

High-concentricity riveting device

Technical Field

The utility model relates to production equipment, in particular to a high-concentricity riveting device.

Background

For some types of precision devices, such as micro motors, microcomputers, micro cameras, laptops, etc., a stationary shaft is provided on the housing, which passes through the center of the housing and is fixed to the housing by welding, and other accessories can be fixed to the stationary shaft during subsequent assembly.

However, in the prior art, the fixing shaft is usually installed manually or by a machine, but both manual operation and equipment have the problems of insufficient concentricity and verticality of the fixing shaft and the shell, so that the air tightness of the shell is influenced, and the subsequent accessory installation precision is also greatly influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a high-concentricity riveting apparatus for overcoming the disadvantages of the prior art.

The utility model provides a high concentricity riveting device for fix the fixed axle on the shell, when fixed axle and shell cooperation, be 90 degrees cooperation installations, high concentricity riveting device includes mould, lower mould, drive arrangement, advancing axle device and blevile of push install in last mould, blevile of push locates into axle device top, it is equipped with the discharge gate to advance the axle device, the fixed axle is placed in advancing the axle device, blevile of push is equipped with the riveting axle, and when advancing the axle device and install on last mould, the riveting axle aligns with the discharge gate of advancing the axle device.

Furthermore, the material belt is provided with positioning holes distributed side by side, the upper die is provided with conical positioning needles distributed side by side, and the positioning holes and the conical needles can be used for auxiliary positioning before riveting.

Furthermore, the bottom of the upper die is provided with an upper die plate and a positioning block arranged at the bottom of the upper die plate, the shape of the positioning block is matched with the inner space of the shell, and the positioning block molds the shell and fixes the shell during die assembly.

Further, the locating piece is equipped with the feed port, the feed port runs through the locating piece in vertical direction to the discharge gate on the shaft feeding device aligns with the feed port on the locating piece, and the feed port can carry out accurate direction to fixed axle riveting direction.

Further, the shaft feeding device comprises a main body part and a material pushing spring, a movable space is arranged in the main body part, the material pushing spring is arranged in the movable space, the discharge port is arranged at one end, far away from the material pushing spring, of the main body part, and the discharge port is communicated with the movable space.

Furthermore, the shaft feeding device also comprises a material pushing piece, and two ends of the material pushing spring respectively abut against the material pushing piece and the inner wall of the movable space.

Furthermore, the shaft feeding device is arranged on the positioning block from the horizontal direction, and the shaft feeding device can be freely disassembled and assembled from the upper template.

Furthermore, the driving device is connected with the upper die and drives the upper die to move, so that the upper die and the lower die are closed or opened.

Furthermore, the upper die is further provided with a punching device, the lower die is provided with a material hole matched with the punching device, and the punching device is arranged at the upstream position of the shaft feeding device along the feeding direction.

Further, blevile of push still includes the cylinder, riveting hub connection is on the cylinder, the cylinder drives riveting shaft at the motion of vertical direction.

The high-concentricity riveting device has the beneficial effects that: through setting up shaft feeding device and blevile of push, the mould is gone up in the cooperation, the lower mould, blevile of push will be gone into the shaft feeding device on the fixed axle pushes installation shell, adopt the form of material area and mould, combine locating hole and toper pilot pin, it is accurate to add the counterpoint in man-hour effectively to guarantee the material area, and cooperation and the relative blevile of push of mounting hole center and shaft feeding device, the concentricity between the product fixed axle of processing and the shell is high, hang down straightness well, under the condition that need not to increase the mounting hole aperture, realize zero counterpoint cooperation to zero, guarantee the gas tightness of product, effectively improve the quality of product, whole course of working need not artifical the participation, the degree of automation is high, effectively improve production efficiency, therefore, the clothes hanger is strong in practicability, and has strong popularization meaning.

Drawings

Fig. 1 is a schematic structural view of the high-concentricity riveting device in processing.

Fig. 2 is a plan view of the high concentricity riveting apparatus shown in fig. 1 when it is processed.

Fig. 3 is a cross-sectional view of the housing engaged with the stationary shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 3, the present invention provides a high concentricity riveting apparatus for fixing a fixing shaft 200 on a housing 100, wherein the fixing shaft 200 is installed in a 90 degree fit when being fitted with the housing 100, the housing 100 includes a bottom cover 110 and an outer wall 120 connected to an outer edge of the bottom cover 110, a receiving space is formed between the bottom cover 110 and the outer wall 120, a mounting hole is formed at a center of the bottom cover 110, and the fixing shaft 200 is installed on the bottom cover 110 in a vertical direction.

The high-concentricity riveting device comprises an upper die 20, a lower die 10, a driving device, a shaft feeding device 40 and a material pushing device 30, wherein the driving device is connected with the upper die 20, the driving device drives the upper die 20 to move so as to enable the upper die 20 and the lower die 10 to carry out die assembly or die opening, the shaft feeding device 40 and the material pushing device 30 are arranged on the upper die 20, the material pushing device 30 is arranged above the shaft feeding device 40, the bottom of the upper die 20 is provided with an upper die plate 21 and a positioning block 22 arranged at the bottom of the upper die plate 21, the shape of the positioning block 22 is matched with the inner space of a shell 100, the positioning block 22 is provided with a feeding hole, the feeding hole penetrates through the positioning block 22 in the vertical direction, the shaft feeding device 40 is arranged on the positioning block 22 from the horizontal direction, the shaft feeding device 40 can be freely disassembled from the upper die plate 21, and the shaft feeding device 40 can be locked or fixed by a buckle structure, a bolt or other modes, the lower die 10 is provided with a lower die plate 11, the upper end surface of the lower die plate is provided with a die cavity, and the inner space of the die cavity is matched with the shell 100 of the shell 100.

The shaft advancing device 40 comprises a main body part 41, a pushing sheet and a pushing spring 42, a movable space 411 is arranged in the main body part 41, the pushing sheet and the pushing spring 42 are arranged in the movable space 411, two ends of the pushing spring 42 respectively abut against the inner walls of the pushing sheet and the movable space 411, two sides of one end, far away from the pushing spring 42, of the main body part 41 are respectively provided with a discharge port extending inwards, the discharge ports are communicated with the movable space 411, and the discharge ports arranged at two sides are aligned with each other. The fixing shafts 200 are arranged in the movable space 411 side by side, the pushing springs 42 push the fixing shaft 200 at the outermost side through the pushing sheet, so that two ends of the fixing shaft 200 are aligned with the discharge port, and the discharge port is aligned with the feed hole on the positioning block 22.

The pushing device 30 comprises an air cylinder and a riveting shaft 31 connected to the air cylinder, the air cylinder drives the riveting shaft 31 to move in the vertical direction, the riveting shaft 31 extends into the upper die 20, and when the shaft feeding device 40 is installed on the upper die 20, the riveting shaft 31 is aligned with a discharge hole of the shaft feeding device 40.

The upper die 20 is further provided with a punching device, the lower die 10 is provided with a material hole matched with the punching device, and the punching device is arranged at the upstream position of the shaft feeding device 40 along the feeding direction, so that when the material belt 300 is processed on the high-concentricity riveting device, a mounting hole is punched firstly, and the fixing shaft 200 is fixed on the mounting hole in subsequent processing.

When the shell 100 is processed, an external material clamping device drives the material belt 300 to intermittently feed, the material belt 300 is molded with a shell connected to the main body part 41 of the material belt 300, the upper die 20 and the lower die 10 are in a die opening state in the feeding process of the material belt 300, when the material belt 300 stops feeding, the driving device drives the upper die 20 and the lower die 10 to close the die, the perforating device processes a mounting hole, the material belt 300 is fed to a position where the mounting hole is aligned with the discharge hole of the shaft feeding device 40, the positioning block 22 fixes the shell in the die cavity, the cylinder of the material pushing device 30 drives the riveting shaft 31 to press down, the riveting shaft 31 extends from the upper feed inlet, the riveting shaft 31 ejects the fixing shaft 200 aligned with the feed inlet from the lower feed inlet, the feed hole can accurately guide the riveting direction of the fixing shaft 200, and the lower end of the ejected fixing shaft 200 is installed in the mounting hole of the shell 100, the fixed shaft 200 and the mounting hole are in interference fit, the cylinder of the pushing device 30 drives the riveting shaft 31 to lift up, the riveting shaft 31 extends out of the feeding hole above, the pushing spring 42 drives the fixed shafts 200 arranged inside to move forwards through the pushing sheet, and the driving device drives the upper die 20 and the lower die 10 to open the die. After the entire strip of material 300 is processed, the housing 100 is cut from the strip of material 300.

It can be understood that, in the embodiment, for a product with a sufficient thickness of the bottom cover 110, the fixing shaft 200 is directly mounted on the mounting hole of the bottom cover 110, and for a product with a relatively thin thickness of the bottom cover 110, in order to prevent the deformation of the mounting hole opening, a copper sleeve needs to be riveted into the mounting hole, and then the fixing shaft needs to be mounted on the copper sleeve in the mounting hole.

In addition, the material belt 300 is provided with positioning holes 310 distributed side by side, the upper die is provided with conical positioning needles distributed side by side, and the conical positioning needles are matched with the positioning holes 310 on the material belt 300 during die assembly to ensure the alignment precision.

The following table shows the unbalance testing comparison between the motor shell produced by the high-concentricity riveting device and other similar products:

the high-concentricity riveting device has the beneficial effects that: by arranging the shaft feeding device 40 and the material pushing device 30, matching with the upper die 20 and the lower die 10, forming the shell 100 by the upper die 20 and the lower die 10 and positioning the material belt 300, the material pushing device 30 pushes the fixing shaft 200 in the shaft feeding device 40 into and onto the shell 100, positioning is carried out by adopting the form of the material belt 100 and the die and combining the positioning hole and the conical positioning needle, accurate alignment of the material belt 100 during processing is effectively ensured, and the material pushing device 30 and the shaft feeding device 40 opposite to the hole center of the mounting hole are matched, the concentricity between the fixing shaft 200 of the processed product and the shell 100 is high, the verticality is good, under the condition that need not to increase the mounting hole aperture, realize the zero to zero cooperation of counterpointing, guarantee the gas tightness of product, effectively improve the quality of product, whole course of working need not artifical the participation, degree of automation is high, effectively improves production efficiency, and the practicality is strong, has stronger popularization meaning.

The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the utility model, and these are within the scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. The high-concentricity riveting device is used for fixing a fixed shaft on a shell, and the fixed shaft is installed in a 90-degree fit manner when being matched with the shell.

2. The high concentricity riveting apparatus of claim 1, wherein: the material belt is provided with positioning holes distributed side by side, the upper die is provided with conical positioning needles distributed side by side, and the positioning holes and the conical needles can be used for auxiliary positioning before riveting.

3. The high concentricity riveting apparatus of claim 1, wherein: the die comprises an upper die and a lower die, and is characterized in that an upper die plate and a positioning block arranged at the bottom of the upper die plate are arranged at the bottom of the upper die, the shape of the positioning block is matched with the inner space of the shell, and the positioning block is used for molding the shell and fixing the shell during die assembly.

4. The high concentricity riveting apparatus of claim 3, wherein: the locating piece is equipped with the feed port, the feed port runs through the locating piece in vertical direction to the discharge gate on the shaft feeding device aligns with the feed port on the locating piece, and the feed port can carry out accurate direction to fixed axle riveting direction.

5. The high concentricity riveting apparatus of claim 1, wherein: the feeding shaft device comprises a main body part and a pushing spring, wherein a movable space is arranged in the main body part, the pushing spring is arranged in the movable space, the discharging port is arranged at one end, far away from the pushing spring, of the main body part, and the discharging port is communicated with the movable space.

6. The high concentricity riveting apparatus of claim 5, wherein: the shaft feeding device also comprises a material pushing piece, and two ends of the material pushing spring respectively abut against the material pushing piece and the inner wall of the movable space.

7. The high concentricity riveting apparatus of claim 1, wherein: the shaft feeding device is arranged on the positioning block in the horizontal direction, and the shaft feeding device can be freely disassembled and assembled from the upper template.

8. The high concentricity riveting apparatus of claim 1, wherein: the driving device is connected with the upper die and drives the upper die to move so that the upper die and the lower die are matched or opened.

9. The high concentricity riveting apparatus of claim 1, wherein: the upper die is further provided with a punching device, the lower die is provided with a material hole matched with the punching device, and the punching device is arranged at the upstream position of the shaft feeding device along the feeding direction.

10. The high concentricity riveting apparatus of claim 1, wherein: the material pushing device further comprises an air cylinder, the riveting shaft is connected to the air cylinder, and the air cylinder drives the riveting shaft to move in the vertical direction.