CN222625941U - Chamfering die for spoke wind holes - Google Patents

Abstract

The utility model discloses a spoke air hole chamfering die, comprising: an upper die, an upper punch, a protective cover, a lower die, a lower punch and a spoke mounting assembly; the upper punch is detachably mounted on the bottom end of the upper die, the protective cover is detachably mounted on the bottom end of the upper punch, and the protective cover is made of a metal with a hardness lower than that of steel; the lower punch is mounted on the lower die, and the lower punch is arranged directly below the upper punch, and the top peripheral side of the lower punch is arranged to be an arc for forming the air hole chamfer; the spoke mounting assembly is mounted on the lower die, and the spoke mounting assembly is used to install and position the spoke so that the air hole of the spoke is located between the upper punch and the lower punch. The advantage of the utility model is that a protective cover made of a metal material with a relatively low hardness is arranged at the bottom end of the upper punch, and the protective cover is driven downward by the upper punch and abuts against the surface of the spoke, so that no imprint is produced on the surface of the spoke when the air hole chamfering process is performed on the spoke.

Description

Chamfering die for spoke wind holes

Technical Field

The utility model relates to the technical field of wheel production, in particular to a spoke wind hole chamfering die.

Background

With the rapid development of the automobile industry, the product quality of the spoke is also of great concern, and a spoke wind hole is an important factor influencing the service performance of the spoke. At present, each wheel factory processes a spoke wind hole, firstly, a middle hole of a wheel spoke is fixed on a positioning bulge of a blanking die, and then single or double hole blanking processing is carried out on the spoke through a punch, but in order to ensure the smoothness and the aesthetic property of the surface of the spoke and improve the fatigue mechanical property of the wheel, the wind hole edge on the spoke is required to be ground flat or chamfered.

The upper punch of the existing spoke wind hole chamfering die is made of steel materials, and the upper punch is used for directly chamfering the surface of the spoke, so that stamping can be generated on the surface of the spoke during chamfering, and improvement is needed.

Disclosure of utility model

The utility model aims to provide a wind hole chamfering die which does not generate imprinting on the surface of a spoke when chamfering the wind hole of the spoke.

The utility model provides a spoke wind hole chamfering die which comprises an upper die, an upper punch, a protective sleeve, a lower die, a lower punch and a spoke mounting assembly, wherein the upper punch is detachably arranged at the bottom end of the upper die, the protective sleeve is detachably arranged at the bottom end of the upper punch, the protective sleeve is made of metal with hardness smaller than that of steel materials, the lower punch is arranged on the lower die and is arranged under the upper punch, the periphery of the top end of the lower punch is provided with an arc for forming a wind hole chamfer, the spoke mounting assembly is arranged on the lower die, and the spoke mounting assembly is used for mounting and positioning spokes, so that wind holes of the spokes are located between the upper punch and the lower punch.

Preferably, the protective sleeve is made of brass material, and the bottom end of the protective sleeve is provided with a curved surface which is adaptive to the shape of the spoke.

Preferably, the upper die comprises an upper die plate and an upper die fixing piece, wherein the upper die fixing piece is fixed below the upper die plate, an upper mounting through hole with two open ends is formed in the upper die fixing piece in the vertical direction, and the upper part of the upper punch is arranged in the upper mounting through hole in a penetrating mode and is fixed with the upper punch through a fastener.

Preferably, the lower die comprises a lower die plate, a lower die seat, a lower die fixing piece and a rebound spring;

The lower die holder is fixed on the lower die plate, the lower die fixing piece is fixedly arranged on the lower die holder, and the lower die fixing piece is provided with lower mounting through holes with two open ends in the vertical direction;

The lower part of the lower punch is arranged in the lower mounting through hole in a penetrating mode, the bottom end of the lower punch is provided with a containing groove, and the rebound spring is arranged in the containing groove.

Preferably, the upper die further comprises an upper die cushion plate, and the upper die cushion plate is fixedly arranged between the upper die plate and the upper die fixing piece;

the lower die further comprises a lower die cushion plate, and the lower die cushion plate is fixed between the lower die fixing piece and the lower die base.

Preferably, the spoke mounting assembly includes:

The sliding seat is positioned at one side of the lower die holder and can slide up and down along the side end of the lower die holder;

The rotary table is rotationally connected with the sliding seat, a positioning protrusion is arranged at the upper center position of the rotary table, and a positioning pin is formed on the periphery of the upper surface of the rotary table;

And the reset spring is connected between the bottom end of the sliding seat and the lower die plate, and compresses the reset spring when the sliding seat slides downwards along the side end of the lower die seat.

Preferably, a sliding pressing plate is fixedly arranged on one side, facing the lower die holder, of the sliding base, a sliding groove is formed in the surface, facing the sliding base, of the lower die holder, the height dimension of the sliding groove is larger than that of the sliding pressing plate, the sliding pressing plate is clamped in the sliding groove, limiting plates are fixedly arranged on two sides of the sliding groove, and the sliding pressing plate is limited between the lower die holder and the limiting plates.

Preferably, the top end of the sliding seat is provided with an inclined surface which is inclined downwards from outside to inside.

Preferably, an installation groove is formed in the upper portion of the protective sleeve, a second installation hole is formed in the side wall of the protective sleeve, and the second installation hole is communicated with the installation groove;

the lower part of the upper punch is provided with a first mounting hole, the lower part of the upper punch is arranged in the mounting groove in a penetrating mode, and mounting bolts are screwed in the first mounting hole and the second mounting hole to connect the upper punch with the protective sleeve.

Preferably, a first rotation stopping surface is arranged in the upper mounting through hole, and a second rotation stopping surface matched with the first rotation stopping surface is arranged at the upper part of the upper punch;

The lower mounting through hole in be provided with the third and stop the face of changeing, the lower part of lower drift is provided with the fourth that is fit with the face of changeing that ends of third.

From the above description of the utility model, the utility model has the following advantages:

1. The bottom demountable installation of last drift is provided with the brass head, and the hardness of brass head is less than steel material, and when last drift descends with this carries out wind hole chamfer processing to the spoke, has guaranteed that the spoke surface does not have the impression.

2. The center position on the carousel is formed with the location arch, is provided with the locating pin on protruding one side of location on the carousel simultaneously, and the spoke is located the protruding inlay card of location when the installation in the mesopore of spoke, and the locating pin inlay card is in the screw of spoke, and not only the location is accurate to the spoke location installation of applicable multiple model.

3. The bottom of slide and sliding block is provided with reset spring, and after the wind hole chamfer processing was accomplished, slide and sliding clamp plate rise under reset spring's effect to this makes the lower drift break away from in the wind hole of spoke, so that dismantle the spoke.

4. A rebound spring is arranged in the accommodating groove of the lower punch, and rebounds after chamfering each time, so that workers can know whether the wind orifice is clamped into the lower punch or not by virtue of hand feeling, the chamfering efficiency of the workers is improved, and the labor intensity is reduced.

Drawings

FIG. 1 is a schematic view showing the overall structure of a chamfering die for spoke wind holes according to an embodiment;

FIG. 2 is a rear view of a spoke wind hole chamfering die according to an embodiment;

FIG. 3 is a top view of a spoke wind hole chamfering mold according to an embodiment;

FIG. 4 is a cross-sectional view A-A of the embodiment of FIG. 3;

FIG. 5 is a cross-sectional view B-B of the embodiment of FIG. 3;

FIG. 6 is a schematic view of the structure of the upper die fixing member according to the embodiment;

FIG. 7 is a schematic view of the structure of the upper punch of the embodiment;

FIG. 8 is a schematic view of the structure of a lower die holder according to an embodiment;

FIG. 9 is a schematic view of the structure of the lower punch of the embodiment;

FIG. 10 is a schematic view of the structure of the embodiment carriage and turntable;

FIG. 11 is a schematic illustration of an embodiment after installation of a workpiece;

FIG. 12 is a schematic view of the structure of the upper punch, brass head and mounting bolts of the embodiment;

FIG. 13 is a schematic view of the structure of the lower die holder and the sliding groove according to the embodiment;

fig. 14 is a schematic view of the structure of the embodiment carriage, the slipping platen and the return spring.

The numerical control device comprises the following components of 1, an upper punch, 11, a first mounting hole, 12, a protective sleeve, 121, a second mounting hole, 122, a mounting groove, 13, a mounting bolt, 14, a second rotation stopping surface, 2, an upper die 2, 21, an upper die cushion plate, 22, an upper die fixing piece, 221, a fastener, 222, an upper mounting through hole, 223, a first rotation stopping surface, 3, an upper die plate, 4, a lower punch, 41, a containing groove, 42, a fourth rotation stopping surface, 5, a lower die, 51, a lower die cushion plate, 511, a rebound spring, 52, a lower die fixing piece, 521, a lower mounting through hole, 522, a third rotation stopping surface, 6, a lower die seat, 61, a sliding groove, 62, a limiting plate, 7, a lower die plate, 8, a spoke mounting assembly, 81, a turntable, 811, a positioning protrusion, 812, a positioning pin, 82, a sliding seat, 83, a reset spring, 84 and a sliding pressing plate.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the utility model is further described in detail below with reference to fig. 1-14 and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-9, a spoke wind hole chamfering die comprises an upper punch 1 and an upper die 2, wherein the upper die 2 comprises an upper die base plate 21, an upper die fixing piece 22 and an upper die plate 3, the upper die base plate 21 is fixedly arranged at the center of the bottom end of the upper die plate 3, the upper die fixing piece 22 is fixedly arranged at the bottom end of the upper die base plate 21, a through upper mounting through hole 222 is formed in the upper die fixing piece 22 in the vertical direction, and one end of the upper punch 1 is penetrated into the upper mounting through hole 222 of the upper die fixing piece 22. In order to avoid relative rotation between the upper punch 1 and the upper die fixing piece 22, a first rotation stopping surface 223 is arranged in the upper mounting through hole 222, a second rotation stopping surface 14 matched with the first rotation stopping surface 223 is arranged at the upper part of the upper punch 1, after the upper punch is penetrated into the upper mounting through hole 222 of the upper die fixing piece 22, a fastener 221 is screwed on the side surface of the upper die fixing piece 22, so that the fastener 221 is tightly abutted against and fixed with the upper punch 1, and the fastener 221 can be arranged as a bolt, thereby ensuring that the upper punch 1 is firmly mounted in the upper die fixing piece 22 and convenient to detach and replace.

The lower die 5 comprises a lower die pad 51, a lower die fixing piece 52, a lower die holder 6 and a lower die plate 7, wherein the lower die holder 6 is fixedly arranged at the central position of the lower die plate 7, the lower die pad 51 is fixedly arranged on the lower die holder 6, and the lower die fixing piece 52 is fixedly arranged on the lower die pad 51 and is provided with a through lower mounting through hole 521 in the vertical direction of the lower die fixing piece 52. A third rotation stopping surface 522 is provided in the lower mounting through hole 521, a fourth rotation stopping surface 42 adapted to the third rotation stopping surface 521 is provided at the lower portion of the lower punch 4 to prevent relative rotation between the lower punch 4 and the lower die holder 52, and the lower punch 4 is inserted into the lower mounting through hole 521 of the lower die holder 52 and the top peripheral side of the lower punch 4 is provided in an arc shape to facilitate chamfering of the spoke.

Referring to fig. 10 and 11, in order to enable precise chamfering of the wind hole of the spoke, a spoke mounting assembly 8 is provided at one side of the lower die holder 6, the spoke mounting assembly 8 includes a slider 82 and a rotary table 81, wherein the slider 82 is provided above the lower die plate 7, the top surface of the slider 82 is provided as an inclined surface inclined to the lower die direction, the rotary table 81 is rotatably connected to the top end of the slider 82, a positioning protrusion 811 corresponding to the spoke middle hole is formed at the center of the rotary table 81, and a positioning pin 812 corresponding to the spoke screw hole is provided at the surface circumference side of the rotary table 81. When the wind hole chamfering is needed to be carried out on the spoke, the spoke is arranged on the rotary table 81, the positioning protrusion 811 on the rotary table 81 is clamped in the middle hole of the spoke, and the positioning pin 812 on the rotary table 81 is clamped in the screw hole of the spoke, so that the spoke is positioned accurately on the rotary table 81.

Referring to fig. 5, 9 and 12, after the spoke is positioned and mounted on the turntable 81 such that one side of the spoke is located between the upper punch 1 and the lower punch 4, the spoke is wind hole chamfered by the upper punch 1 and the lower punch 4 being clamped with each other. In order to enable the upper punch 1 and the lower punch 4 to chamfer the air hole of the spoke accurately, a rebound spring 511 is fixedly arranged on the lower die base plate 51, a containing groove 41 is formed in the bottom end of the lower punch 4 corresponding to the rebound spring, when the lower punch 4 is clamped in the lower die fixing piece 52, one end, far away from the lower die base plate 51, of the rebound spring 511 is penetrated into the containing groove 41 and fixed with the lower punch 4, and the lower punch 4 penetrates into the air hole on one side of the spoke under the action of the rebound spring 511, so that the air hole of the spoke is positioned accurately with the lower punch 4 and the upper punch 1.

When chamfering the wind hole of the spoke, the upper punch 1 descends into the wind hole of the spoke and closes the lower punch 4 with each other, and the upper punch 1 chamfering the wind hole of the spoke and simultaneously drives the lower punch 4 to press the rebound spring 511. In order to prevent the surface of the spoke from being stamped when the upper punch 1 is used for chamfering the wind hole of the spoke, the bottom end of the lower punch 1 is provided with the protective sleeve 12, the protective sleeve 12 can be a brass head with hardness smaller than that of steel materials, and the bottom end of the brass head is curved. The mounting groove 122 is formed in the protective cover 12, the bottom end of the lower punch 1 is penetrated into the mounting groove 122 of the protective cover 12, the first mounting hole 11 is formed in the side surface of the upper punch 1, the second mounting hole 121 is formed in the side surface of the upper punch 1, and the mounting bolt 13 is screwed into the first mounting hole 11 and the second mounting hole 121 after the brass is sleeved on the periphery of the upper punch 1, so that the brass body and the upper punch 1 are not only firmly fixed, but also convenient to detach.

Referring to fig. 13 and 14, after the wind hole chamfering is completed on the spoke by the wind hole chamfering die, in order to facilitate the separation of the lower punch 4 from the wind hole of the spoke to detach the spoke, the spoke mounting assembly 8 further comprises a plurality of return springs 83, a sliding pressing plate 84 is fixedly arranged on one side of the sliding seat 82 facing the lower die holder 6, the bottom end of the sliding pressing plate 84 is flush with the bottom end of the sliding seat 82, and the plurality of return springs 83 are respectively arranged between the lower die plate 7 and the sliding seat 82 or between the lower die plate 7 and the sliding pressing plate 84. In order to keep the sliding seat 82 stable in the lifting process, a sliding groove 61 is correspondingly formed on the side of the lower die holder 6 facing the sliding seat 82. The height dimension of the sliding groove 61 is set to "H", and the height dimension of the sliding platen 84 is set to "D", and the height dimension "H" of the sliding groove 61 is made larger than the height dimension "D" of the sliding platen 84. The sliding pressing plate 84 is clamped in the sliding groove 61, and a limiting plate 62 is fixedly arranged on one side of the lower die holder 6 facing the sliding seat 82, and the limiting plate 62 is positioned on two sides of the sliding groove 61 so as to limit the limiting plate 62 between the lower die holder 6 and the limiting plate 62. The upper punch 1 descends to drive the spoke and the sliding seat 82 to descend so as to compress the reset spring 83, after the wind hole chamfering of the spoke is completed, the sliding seat 82 and the spoke are lifted under the action of the elastic force of the reset spring 83, and the wind hole of the spoke is separated from the lower punch 4 in the lifting process, so that the spoke is conveniently detached from the wind hole chamfering die.

When the spoke needs to be subjected to wind hole chamfering, an upper punch 1 corresponding to the wind hole type of the spoke to be processed is selected, the selected upper punch 1 is penetrated into an upper die fixing piece 22 and is fixedly installed with the upper die fixing piece 22, a brass head corresponding to the type of the upper punch 1 is selected to be sleeved on the periphery of the bottom end of the upper punch 1, and a mounting bolt 13 is screwed into a second mounting hole 121 penetrating into the brass head and a first mounting hole 11 of the upper punch 1, so that the brass head and the upper punch 1 are fixedly installed.

The spoke to be processed is arranged on the rotary table 81, so that the positioning protrusion 811 is clamped into the middle hole of the spoke, the positioning pin 812 on the rotary table 81 is clamped into the screw hole of the spoke, the spoke is accurately positioned and arranged on the rotary table 81, and the top end part of the lower punch 4 is ensured to penetrate into the wind hole of the spoke under the action of the rebound spring 511. As the upper punch 1 descends to make the brass head abut against the surface of the spoke and press down the spoke, the lower punch 4 is made to penetrate completely into the wind hole of the spoke, thereby completing chamfering of the wind hole of the spoke, and the slider 82 compresses the return spring 83 while pressing down the spoke. Then the upper punch 1 moves upwards, the slide seat 82 drives the spoke to move upwards under the action of the elastic force of the return spring 83, and the sliding pressing plate 84 fixed with the slide seat 82 slides upwards in the sliding groove 61 of the lower die holder 6 at this time, so that the spoke and the lower punch 4 are separated from each other, and the spoke is conveniently taken down from the rotary table 81.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to cover various insubstantial modifications, either as applying the inventive concepts and technical solutions to the method or as applying them directly to other applications without modification, as well as all coming within the true scope of the utility model.

Claims (10)

1. The spoke wind hole chamfering die is characterized by comprising an upper die, an upper punch, a protective sleeve, a lower die, a lower punch and a spoke mounting assembly;

The upper punch is detachably arranged at the bottom end of the upper die, the protective sleeve is detachably arranged at the bottom end of the upper punch, and the protective sleeve is made of metal with hardness smaller than that of steel materials;

The lower punch is arranged on the lower die, the lower punch is arranged right below the upper punch, and the top circumferential side of the lower punch is provided with an arc for forming a wind hole chamfer;

The spoke mounting assembly is arranged on the lower die and is used for mounting and positioning the spoke, so that a wind hole of the spoke is positioned between the upper punch and the lower punch.

2. The spoke wind hole chamfering mold as set forth in claim 1, wherein the protective sleeve is made of brass material, and a bottom end of the protective sleeve is provided with a curved surface which is adapted to a spoke shape.

3. The spoke wind hole chamfering die as set forth in claim 1, wherein the upper die comprises an upper die plate and an upper die fixing piece, wherein the upper die fixing piece is fixed below the upper die plate, an upper mounting through hole with two open ends is formed in the upper die fixing piece in the vertical direction, and the upper portion of the upper punch is arranged in the upper mounting through hole in a penetrating mode and is fixed with the upper punch through a fastening piece.

4. The spoke wind hole chamfering die as set forth in claim 3, wherein said lower die comprises a lower die plate, a lower die holder, a lower die fixing piece and a rebound spring;

The lower die holder is fixed on the lower die plate, the lower die fixing piece is fixedly arranged on the lower die holder, and the lower die fixing piece is provided with lower mounting through holes with two open ends in the vertical direction;

The lower part of the lower punch is arranged in the lower mounting through hole in a penetrating mode, the bottom end of the lower punch is provided with a containing groove, and the rebound spring is arranged in the containing groove.

5. The wind hole chamfering die for spoke of claim 4, wherein said upper die further comprises an upper die pad fixedly disposed between the upper die plate and the upper die fixing member;

the lower die further comprises a lower die cushion plate, and the lower die cushion plate is fixed between the lower die fixing piece and the lower die base.

6. The spoke wind hole chamfering mold as set forth in claim 4, wherein said spoke mounting assembly comprises:

The sliding seat is positioned at one side of the lower die holder and can slide up and down along the side end of the lower die holder;

The rotary table is rotationally connected with the sliding seat, a positioning protrusion is arranged at the upper center position of the rotary table, and a positioning pin is formed on the periphery of the upper surface of the rotary table;

And the reset spring is connected between the bottom end of the sliding seat and the lower die plate, and compresses the reset spring when the sliding seat slides downwards along the side end of the lower die seat.

7. The spoke wind hole chamfering die set forth in claim 6, wherein a sliding pressing plate is fixedly arranged on one side of the sliding seat facing the lower die holder, a sliding groove is formed in the surface of the lower die holder facing the sliding seat, the height dimension of the sliding groove is larger than that of the sliding pressing plate, the sliding pressing plate is clamped in the sliding groove, limiting plates are fixedly arranged on two sides of the sliding groove, and the sliding pressing plate is limited between the lower die holder and the limiting plates.

8. The wind hole chamfering die for spokes according to claim 7, wherein the top end of the slide is provided as an inclined surface inclined downward from outside to inside.

9. The spoke wind hole chamfering die as set forth in claim 1, wherein a mounting groove is formed in the upper portion of the protective sleeve, a second mounting hole is formed in the side wall of the protective sleeve, and the second mounting hole is communicated with the mounting groove;

the lower part of the upper punch is provided with a first mounting hole, the lower part of the upper punch is arranged in the mounting groove in a penetrating mode, and mounting bolts are screwed in the first mounting hole and the second mounting hole to connect the upper punch with the protective sleeve.

10. The wind hole chamfering die for spoke of claim 4, wherein a first rotation stopping surface is arranged in the upper mounting through hole, and a second rotation stopping surface matched with the first rotation stopping surface is arranged at the upper part of the upper punch;

The lower mounting through hole in be provided with the third and stop the face of changeing, the lower part of lower drift is provided with the fourth that is fit with the face of changeing that ends of third.