CN210877176U - Full-automatic aluminum pipe riveting die mechanism - Google Patents

Abstract

The utility model provides a full-automatic aluminum pipe riveting die mechanism, include: the lower die assembly comprises a lower female die and a lower die, wherein the lower female die is used for fixing the substrate and a reducing aluminum pipe which is positioned in the mounting hole of the substrate, and the small-diameter end of the reducing aluminum pipe faces upwards and extends to a preset length above the substrate; go up the mould subassembly, be equipped with the drift, the drift includes drift body and spacing needle, the drift body is cylindrically, the terminal surface that spacing needle is located the drift body just outwards extends along the axial, the axis coincidence of drift body and reducing aluminum pipe goes up the mould subassembly and can drive the axial displacement of drift along the reducing aluminum pipe, and spacing needle can stretch into the inner chamber of reducing aluminum pipe, and the terminal surface of drift body can contact with the terminal surface of the little diameter end of reducing aluminum pipe. The utility model discloses realize automated processing, improve work efficiency, and press and rivet fixed effectual.

Description

Full-automatic aluminum pipe riveting die mechanism

Technical Field

The utility model particularly relates to a full-automatic aluminum pipe riveting die mechanism.

Background

As shown in fig. 1, the fixing frame of the air conditioner compressor comprises a substrate 01 and a reducing aluminum pipe 03, during assembly, the reducing aluminum pipe 03 needs to be riveted on the substrate 01, as shown in fig. 2, during assembly, a small-diameter end of the reducing aluminum pipe 03 is inserted into a mounting hole 02 of the substrate 01, and then an end of the small-diameter end of the reducing aluminum pipe 03 is riveted, so that fixation is achieved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a full-automatic aluminum pipe riveting die mechanism realizes automated processing, improves work efficiency, and presses to rivet fixed effectual.

The utility model adopts the following technical scheme:

the utility model provides a full-automatic aluminum pipe riveting die mechanism, includes:

the lower die assembly comprises a lower female die and a lower die, wherein the lower female die is used for fixing the substrate and a reducing aluminum pipe which is positioned in the mounting hole of the substrate, and the small-diameter end of the reducing aluminum pipe faces upwards and extends to a preset length above the substrate;

go up the mould subassembly, be equipped with the drift, the drift includes drift body and spacing needle, the drift body is cylindrically, the terminal surface that spacing needle is located the drift body just outwards extends along the axial, the axis coincidence of drift body and reducing aluminum pipe goes up the mould subassembly and can drive the axial displacement of drift along the reducing aluminum pipe, and spacing needle can stretch into the inner chamber of reducing aluminum pipe, and the terminal surface of drift body can contact with the terminal surface of the little diameter end of reducing aluminum pipe.

Preferably, the diameter of the limiting needle is matched with the inner diameter of the reducing aluminum pipe, the axial length of the limiting needle is not less than the length of the small-diameter end of the reducing aluminum pipe, and a conical head which contracts downwards is further arranged at the end of the limiting needle.

Preferably, the cavity is placed to the base plate standing groove and the reducing aluminum pipe that are equipped with the indent on the lower die, the shape phase-match of base plate standing groove and base plate, the reducing aluminum pipe is placed the cavity and is seted up in the below of base plate standing groove for the mounting hole department of base plate, and the internal diameter that the cavity was placed to the reducing aluminum pipe matches with the external diameter of the big diameter end of reducing aluminum pipe, and when the big diameter end of reducing aluminum pipe was located the reducing aluminum pipe and is placed the cavity, the minor diameter end of reducing aluminum pipe stretched out to the top of base plate predetermined length.

Preferably, the lower die is provided with a mounting cavity below the substrate placing groove, a replaceable part is arranged in the mounting cavity, the upper end face of the replaceable part is not higher than the bottom face of the substrate placing groove, and the reducing aluminum pipe placing cavity is located in the replaceable part.

Preferably, the upper die assembly comprises an upper die plate, an upper backing plate, a punch fixing plate and a stripper plate which are sequentially arranged from top to bottom, the punch is fixed on the punch fixing plate, the stripper plate is connected with a bolt arranged parallel to the punch, the upper backing plate is provided with a slide hole matched with a screw rod of the bolt, the upper die plate is provided with a stop hole matched with a nut of the bolt, the stripper plate slides in the upper backing plate through the bolt, and the bolt is sleeved with a reset spring for resetting; and a punch hole for the punch to pass through is formed in the stripper plate, and when the punch moves along the axial direction of the reducing aluminum pipe, the stripper plate can compress the substrate in the substrate placing groove.

Preferably, the punch fixing plate is further provided with an inner guide pillar parallel to the punch, the stripper plate is provided with a guide pillar hole through which the inner guide pillar passes, the lower female die is provided with an inner guide sleeve corresponding to the inner guide pillar, and the inner guide sleeve is embedded in the lower female die.

Preferably, the lower die assembly further comprises a lower die plate, the lower female die is fixed on the lower die plate, the lower die plate is further provided with a die guide pillar and a die limiting pillar, and the upper die plate is further provided with a die guide sleeve capable of being matched with the die guide pillar and a die moving pillar matched with the die limiting pillar; when the punch moves along the axial direction of the reducing aluminum pipe, the die guide sleeve can be sleeved outside the die guide pillar, and the die moving pillar can be contacted with the die limiting pillar.

Preferably, the die limiting column is also movably connected with a blocking piece, and when the blocking piece is positioned between the die moving column and the die limiting column, a certain gap is reserved between the stripper plate and the lower female die.

Preferably, the upper die assembly is further connected with a driving mechanism, the driving mechanism comprises a fixed top plate, a movable plate, a supporting guide pillar and an air cylinder, the supporting guide pillar is parallel to the punch and is supported and fixed by the supporting guide pillar, the movable plate is fixedly connected with the upper die plate, and the air cylinder is fixed on the fixed top plate and drives the movable plate to slide along the supporting guide pillar.

Preferably, the lower die assembly is further connected with a moving mechanism, the moving mechanism comprises a base, a slide rail, a slide block and a linear motor, the slide rail is arranged on the base along the direction vertical to the punch, the linear motor drives the lower die plate to slide along the slide rail through the slide block, a limiting block is further arranged on the slide rail, and when the slide block is in contact with the limiting block, the lower die assembly is located right below the upper die assembly; the supporting guide pillar is fixed on the base.

The utility model has the advantages that: the utility model discloses a lower fixed base plate of lower die and the reducing aluminum pipe that is located the mounting hole of base plate, the drift pushes down, the axial displacement of drift along the reducing aluminum pipe, spacing needle stretches into the inner chamber of reducing aluminum pipe, prevent that the reducing aluminum pipe from riveting the in-process deformation in the pressure, the terminal surface of drift body contacts and continues to push down with the terminal surface of the little diameter end of reducing aluminum pipe, the terminal surface of drift body makes the upper end of reserving the reducing aluminum pipe of certain length to radial deformation, until compressing tightly to the substrate surface, form the riveting, accomplish the pressure and rivet the operation, thereby realize automated processing, and the work efficiency is improved.

Drawings

The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a riveted joint product in the background art;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a schematic structural view of a limiting block of the slide rail shown in FIG. 3;

FIG. 5 is a schematic diagram of the relative positions of the upper mold assembly and the lower mold assembly of the present invention;

FIG. 6 is an axial cross-sectional view of the punch, inner guide post and bolt of FIG. 5;

FIG. 7 is a schematic view of the punch of FIG. 6 extending into the inner cavity of a reducing aluminum tube;

fig. 8 is a schematic perspective view of the lower female die of the present invention.

Labeled as: 01. a substrate; 02. mounting holes; 03. a variable diameter aluminum tube; 100. a lower die assembly; 110. a lower concave die; 111. a substrate placement groove; 112. a reducing aluminum tube placing cavity; 113. a replaceable member; 114. an inner guide sleeve; 120. a lower template; 130. a die guide post; 140. a die spacing post; 150. a barrier; 200. an upper die assembly; 210. a punch; 211. a punch body; 212. a limit needle; 213. a conical head; 220. mounting a template; 230. an upper base plate; 240. a punch fixing plate; 241. an inner guide post; 250. a stripper plate; 251. a bolt; 260. a return spring; 270. a die guide sleeve; 280. a mold moving column; 300. a drive mechanism; 310. fixing a top plate; 320. a movable plate; 330. supporting the guide post; 340. a cylinder; 400. a moving mechanism; 410. a base; 420. a slide rail; 430. a slider; 440. a linear motor; 450. and a limiting block.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 3 to 8, the full-automatic aluminum pipe riveting die mechanism of the present embodiment includes a lower die assembly 100, an upper die assembly 200, a driving mechanism 300 and a moving mechanism 400;

the lower die assembly 100 comprises a lower female die 110 and a lower template 120, the lower female die 110 is fixed on the lower template 120, an inwards concave substrate placing groove 111 and a reducing aluminum tube placing cavity 112 are arranged on the lower female die 110, and the substrate placing groove 111 is matched with the substrate 01 in shape and used for fixing the substrate 01; the reducing aluminum pipe placing cavity 112 is arranged below the substrate placing groove 111 relative to the mounting hole 02 of the substrate 01, the inner diameter of the reducing aluminum pipe placing cavity 112 is matched with the outer diameter of the large-diameter end of the reducing aluminum pipe 03 and used for placing the reducing aluminum pipe 03, and when the large-diameter end of the reducing aluminum pipe 03 is located in the reducing aluminum pipe placing cavity 112, the small-diameter end of the reducing aluminum pipe 03 extends upwards to a preset length above the substrate 01; during operation, the large-diameter end of the reducing aluminum pipe 03 is placed in the reducing aluminum pipe placing cavity 112, the substrate 01 is sleeved on the small-diameter end of the reducing aluminum pipe 03 through the mounting hole 02 and placed in the substrate placing groove 111, and a certain length is reserved at the upper end of the reducing aluminum pipe 03 for pressure riveting deformation;

the lower die 110 is also provided with a mounting cavity below the substrate placing groove 111, the mounting cavity is internally provided with a replaceable part 113, the upper end face of the replaceable part 113 is not higher than the bottom face of the substrate placing groove 111, the reducing aluminum tube placing cavity 112 is positioned in the replaceable part 113, the reducing aluminum tube placing cavity 112 is a main stressed part and is easy to damage, the maintenance is facilitated by the arrangement of the replaceable part 113, and meanwhile, the proper replaceable part 113 can be selected according to the specific size of the large-diameter end of the reducing aluminum tube 03; the lower template 120 is further provided with a mold guide pillar 130 and a mold limiting pillar 140, the lower template 120 is rectangular, and the mold guide pillar 130 and the mold limiting pillar 140 are respectively and symmetrically distributed on two sides of the lower template 120;

the upper die assembly 200 comprises an upper die plate 220, an upper backing plate 230, a punch fixing plate 240 and a stripper plate 250 which are sequentially arranged from top to bottom, wherein the punch fixing plate 240 is provided with a punch 210 and an inner guide post 241 parallel to the punch 210, and the upper die assembly 200 can drive the punch 210 to axially move along the diameter-variable aluminum pipe 03; the punch 210 comprises a punch body 211 and a limiting needle 212, the punch body 211 is cylindrical, the limiting needle 212 is located on the end face of the punch body 211 and extends outwards along the axial direction, the axis of the punch body 211 coincides with that of the reducing aluminum pipe 03, when the punch 210 moves along the axial direction of the reducing aluminum pipe 03, the limiting needle 212 can extend into the inner cavity of the reducing aluminum pipe 03, and the end face of the punch body 211 can be in contact with the end face of the small-diameter end of the reducing aluminum pipe 03; the diameter of the limiting needle 212 is matched with the inner diameter of the reducing aluminum pipe 03, the axial length of the limiting needle 212 is not less than the length of the small-diameter end of the reducing aluminum pipe 03, and a conical head 213 which contracts downwards is further arranged at the end part of the limiting needle 212; after the substrate 01 and the reducing aluminum pipe 03 are fixed in position, the punch 210 moves along the axial direction of the reducing aluminum pipe 03, the limiting needle 212 extends into the inner cavity of the reducing aluminum pipe 03 to prevent the reducing aluminum pipe 03 from deforming in the press riveting process, the end face of the punch body 211 is contacted with the end face of the small-diameter end of the reducing aluminum pipe 03 and continues to press downwards, the end face of the punch body 211 enables the upper end of the reducing aluminum pipe 03 reserved with a certain length to deform radially until the upper end is pressed to the surface of the substrate 01 to form riveting, and the press riveting operation is completed;

the upper die plate 220 is provided with a die guide sleeve 270 capable of being matched with the die guide post 130 and a die moving post 280 matched with the die limiting post 140; when the punch 210 moves along the axial direction of the reducing aluminum pipe 03, the die guide sleeve 270 can be sleeved outside the die guide post 130, and the guide is realized by the sliding of the die guide sleeve 270 along the die guide post 130; the mold moving column 280 can contact with the mold limiting column 140, and when the mold moving column 280 and the mold limiting column are contacted, the upper mold assembly 200 cannot move downwards continuously, so that the limiting effect is realized; the die limiting column 140 is also movably connected with a blocking piece 150, when the blocking piece 150 is positioned between the die moving column 280 and the die limiting column 140, a certain gap is left between the stripper plate 250 and the lower female die 110, the blocking piece 150 is used for separating the lower die assembly 100 from the upper die assembly 200, and the blocking piece 150 is used when the whole mechanism does not work, so that the mutual stress influence between the lower die assembly 100 and the upper die assembly 200 is avoided when the whole mechanism does not work;

a bolt 251 arranged parallel to the punch 210 is connected to the discharging plate 250, a sliding hole matched with a screw of the bolt 251 is formed in the upper backing plate 230, a stop hole matched with a nut of the bolt 251 is formed in the upper die plate 220, and the discharging plate 250 slides in the upper backing plate 230 through the bolt 251; a return spring 260 connected between the discharging plate 250 and the upper backing plate 230 is sleeved outside the bolt 251, and an accommodating cavity for accommodating the return spring 260 is formed in the punch fixing plate 240; the discharging plate 250 is provided with a punch hole for the punch 210 to pass through and a guide post hole for the inner guide post 241 to pass through, the lower female die 110 is provided with an inner guide sleeve 114 corresponding to the position of the inner guide post 241, the inner guide sleeve 114 is embedded in the lower female die 110, when the punch 210 moves along the axial direction of the reducing aluminum tube 03, the inner guide post 241 extends into the inner guide sleeve 114 to move and guide, the discharging plate 250 contacts the substrate 01 and continues to press downwards, the discharging plate 250 slides through a bolt 251, the substrate 01 is pressed in the substrate placing groove 111 by overcoming the elasticity of a return spring 260 and continues to press downwards, the punch 210 extends out, the limit needle 212 extends into the inner cavity of the reducing aluminum tube 03, the end face of the punch body 211 contacts with the end face of the small-diameter end of the reducing aluminum tube 03 and continues to press downwards, and the end face of the punch body 211 enables the upper end of the reducing aluminum tube; after the squeeze riveting is finished, the upper die assembly 200 retracts, the punch 210 leaves the reducing aluminum pipe 03 firstly, the reset spring 260 still compresses the substrate 01 through the discharging plate 250 under the action of elastic force and continues to retract, and the discharging plate 250 leaves the substrate 01 until the inner guide post 241 leaves the inner guide sleeve 114;

the driving mechanism 300 includes a fixed top plate 310, a movable plate 320, a supporting guide pillar 330 and a cylinder 340, the supporting guide pillar 330 is disposed parallel to the punch 210, the fixed top plate 310 is supported and fixed by the supporting guide pillar 330, the movable plate 320 is fixedly connected with the upper plate 220, the cylinder 340 is fixed on the fixed top plate 310 and drives the movable plate 320 to slide along the supporting guide pillar 330; the moving mechanism 400 comprises a base 410, a slide rail 420, a slide block 430 and a linear motor 440, wherein the slide rail 420 is arranged on the base 410 along a direction vertical to the punch 210, the linear motor 440 drives the lower template 120 to slide along the slide rail 420 through the slide block 420, a limit block 450 is further arranged on the slide rail 420, and when the slide block 430 contacts with the limit block 450, the lower die assembly 100 is positioned right below the upper die assembly 200; the supporting guide pillar 330 is fixed on the base 410; after the substrate 01 and the reducing aluminum pipe 03 are fixed in the lower female die 110, the button is started, the linear motor 440 drives the lower die plate 120 to slide along the slide rail 420 through the slider 420 until the limiting block 450 is located, the lower die assembly 100 is located right below the upper die assembly 200, the air cylinder 340 is started at the moment, the movable plate 320 is pushed to slide downwards along the support guide pillar 330 to drive the upper die assembly 200 to move towards the lower die assembly 100, after the riveting operation is completed, the air cylinder 340 returns to the highest point, the upper die assembly 200 is separated from the lower die assembly 100, and the linear motor 440 drives the lower die assembly 100 to slide and return along the slide rail 420, so that the automatic operation is completed in a circulating.

The utility model discloses a theory of operation:

firstly, placing the large-diameter end of the reducing aluminum pipe 03 in the reducing aluminum pipe placing cavity 112, sleeving the substrate 01 on the small-diameter end of the reducing aluminum pipe 03 through the mounting hole 02, and placing the substrate in the substrate placing groove 111, wherein a certain length is reserved at the upper end of the reducing aluminum pipe 03;

when the button is started, the linear motor 440 drives the lower template 120 to slide along the slide rail 420 through the slider 420 until the position of the limit block 450, the lower die assembly 100 is located right below the upper die assembly 200, and at this time, the cylinder 340 is started to push the movable plate 320 to slide downwards along the support guide post 330, so as to drive the upper die assembly 200 to move towards the lower die assembly 100, and the guiding is realized through the sliding of the die guide sleeve 270 along the die guide post 130;

the inner guide post 241 extends into the inner guide sleeve 114 to move and guide, the discharging plate 250 contacts the substrate 01 and continues to press downwards, the discharging plate 250 slides through the bolt 251, the substrate 01 is pressed in the substrate placing groove 111 by overcoming the elasticity of the return spring 260 and continues to press downwards, the punch 210 extends out, the limiting pin 212 extends into the inner cavity of the reducing aluminum pipe 03, the end face of the punch body 211 contacts with the end face of the small-diameter end of the reducing aluminum pipe 03 and continues to press downwards, and the end face of the punch body 211 enables the upper end of the reducing aluminum pipe 03 reserved with a certain length to deform radially to complete pressure riveting;

after the squeeze riveting is finished, the air cylinder 340 drives the upper die assembly 200 to retreat to the highest point, the upper die assembly 200 is separated from the lower die assembly 100, and the linear motor 440 drives the lower die assembly 100 to retreat along the sliding rail 420, so that the automatic operation is completed circularly.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a full-automatic aluminum pipe riveting die mechanism which characterized in that includes:

the lower die assembly comprises a lower female die and a lower die, wherein the lower female die is used for fixing the substrate and a reducing aluminum pipe which is positioned in the mounting hole of the substrate, and the small-diameter end of the reducing aluminum pipe faces upwards and extends to a preset length above the substrate;

go up the mould subassembly, be equipped with the drift, the drift includes drift body and spacing needle, the drift body is cylindrically, the terminal surface that spacing needle is located the drift body just outwards extends along the axial, the axis coincidence of drift body and reducing aluminum pipe goes up the mould subassembly and can drive the axial displacement of drift along the reducing aluminum pipe, and spacing needle can stretch into the inner chamber of reducing aluminum pipe, and the terminal surface of drift body can contact with the terminal surface of the little diameter end of reducing aluminum pipe.

2. The full-automatic aluminum pipe riveting die mechanism according to claim 1, wherein the diameter of the limiting needle is matched with the inner diameter of the reducing aluminum pipe, the axial length of the limiting needle is not less than the length of the small-diameter end of the reducing aluminum pipe, and a tapered head which contracts downwards is further arranged at the end of the limiting needle.

3. The full-automatic aluminum pipe riveting die mechanism according to claim 1 or 2, wherein the lower female die is provided with an inwards concave base plate placing groove and a reducing aluminum pipe placing cavity, the base plate placing groove is matched with the base plate in shape, the reducing aluminum pipe placing cavity is arranged below the base plate placing groove relative to the mounting hole of the base plate, the inner diameter of the reducing aluminum pipe placing cavity is matched with the outer diameter of the large-diameter end of the reducing aluminum pipe, and when the large-diameter end of the reducing aluminum pipe is located in the reducing aluminum pipe placing cavity, the small-diameter end of the reducing aluminum pipe extends out to the preset length above the base plate.

4. The full-automatic aluminum pipe riveting die mechanism according to claim 3, wherein a mounting cavity is further formed in the lower die below the substrate placing groove, a replaceable part is arranged in the mounting cavity, the upper end face of the replaceable part is not higher than the bottom face of the substrate placing groove, and the reducing aluminum pipe placing cavity is located in the replaceable part.

5. The full-automatic aluminum pipe riveting die mechanism according to claim 3, wherein the upper die assembly comprises an upper die plate, an upper backing plate, a punch fixing plate and a stripper plate which are sequentially arranged from top to bottom, the punch is fixed on the punch fixing plate, the stripper plate is connected with a bolt arranged in parallel with the punch, the upper backing plate is provided with a slide hole matched with a screw rod of the bolt, the upper die plate is provided with a stop hole matched with a nut of the bolt, the stripper plate slides in the upper backing plate through the bolt, and the bolt is sleeved with a reset spring for resetting; and a punch hole for the punch to pass through is formed in the stripper plate, and when the punch moves along the axial direction of the reducing aluminum pipe, the stripper plate can compress the substrate in the substrate placing groove.

6. The mechanism of claim 5, wherein the punch fixing plate is further provided with an inner guide post parallel to the punch, the stripper plate is provided with a guide post hole for the inner guide post to pass through, the lower die is provided with an inner guide sleeve corresponding to the inner guide post, and the inner guide sleeve is embedded in the lower die.

7. The full-automatic aluminum pipe riveting die mechanism according to claim 6, wherein the lower die assembly further comprises a lower die plate, the lower female die is fixed on the lower die plate, the lower die plate is further provided with a die guide post and a die limiting post, and the upper die plate is further provided with a die guide sleeve capable of being matched with the die guide post and a die moving post matched with the die limiting post; when the punch moves along the axial direction of the reducing aluminum pipe, the die guide sleeve can be sleeved outside the die guide pillar, and the die moving pillar can be contacted with the die limiting pillar.

8. The full-automatic aluminum pipe riveting die mechanism as recited in claim 7, wherein the die limit column is movably connected with a blocking member, and when the blocking member is positioned between the die moving column and the die limit column, a certain gap is left between the stripper plate and the lower female die.

9. The mechanism of any one of claims 5 to 8, wherein a driving mechanism is further connected to the upper die assembly, the driving mechanism includes a fixed top plate, a movable plate, a supporting guide pillar and a cylinder, the supporting guide pillar is disposed parallel to the punch, the fixed top plate is supported and fixed by the supporting guide pillar, the movable plate is fixedly connected to the upper die plate, and the cylinder is fixed to the fixed top plate and drives the movable plate to slide along the supporting guide pillar.

10. The full-automatic aluminum pipe riveting die mechanism according to claim 9, wherein the lower die assembly is further connected with a moving mechanism, the moving mechanism comprises a base, a slide rail, a slide block and a linear motor, the slide rail is arranged on the base along a direction perpendicular to the punch, the linear motor drives the lower die plate to slide along the slide rail through the slide block, a limit block is further arranged on the slide rail, and when the slide block is in contact with the limit block, the lower die assembly is positioned right below the upper die assembly; the supporting guide pillar is fixed on the base.

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