CN201702543U

CN201702543U - Rolling tool of headrest rod open slot

Info

Publication number: CN201702543U
Application number: CN201020217264XU
Authority: CN
Inventors: 吕国池; 张维生; 吕德苓
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-07
Filing date: 2010-06-07
Publication date: 2011-01-12
Anticipated expiration: 2020-06-07

Abstract

The utility model discloses a rolling tool of a headrest rod open slot, and relates to a special tool for roll finishing a headrest rod open slot. The utility model aims to provide the rolling tool of the headrest rod open slot, which has good processing quality and high production efficiency. The utility model comprises a guide block, a compression block, idler wheels and an idler wheel support, wherein a guide hole which is penetrated from left to right is arranged in the middle part of the guide block, a plurality of workpiece lower locating slots which are vertical to the guide hole are arranged on the upper surface of the guide block, a plurality of hob holes are arranged on each workpiece lower locating slot and is communicated with the guide hole, a plurality of idler wheel guideways which are penetrated from left to right are arranged on the upper surface of the guide hole, a plurality of workpiece upper locating slots are arranged on the lower surface of the compression block, a plurality of idler wheel slots and shaft holes are arranged on the upper surface of the idler wheel support, the idler wheels are arranged in the idler wheel slots, the idler wheels can rotate in the idler wheel slots, the idler wheels correspond to the positions of the idler wheel guideways, and the height of the idler wheel in each idler wheel guideway is uniformly reduced from left to right.

Description

Chair headrest bar open slot roll extrusion frock

Technical field

The utility model relates to a kind of roll extrusion frock, particularly relates to a kind of specific purpose tool of rolling and processing chair headrest bar open slot.

Background technology

As shown in Figure 1, automotive seat of today all includes cushion 1, backrest 2 and rests the head on 3, headrest 3 all is the top that is installed in backrest 2 by its inner head rest pole 4, for the passenger who makes different heights can both be comfortable head is leaned against the headrest 3 on, usually all be that head rest pole 4 is designed to the adjustable height type, on the montant 5 of head rest pole 4, vertically be processed with some open slots 6, in conjunction with shown in Figure 2, cutting ferrule 7 is installed on backrest 2, utilizes the bayonet lock 8 in the cutting ferrule 7 head rest pole 4 to be may be limited on the different height with the cooperation of open slot 6.At present; open slot 6 on processing head rest pole 4 mainly is a mode of utilizing machining; remove unnecessary material on the rod member; obtain the head rest pole open slot shown in Fig. 3 a and Fig. 3 b; the wall thickness of open slot 6 obviously diminishes; the intensity of head rest pole 4 is obviously reduced, and rest the head on 3 be in the automobile protection head of passenger vitals, the reduction of head rest pole semi-finals degree also brings great potential safety hazard to the passenger.Simultaneously, the surface quality of the open slot of machining is lower, and roughness is higher, will polish to open slot before electroplating, thereby also reduce production efficiency.

The utility model content

It is good that the technical problems to be solved in the utility model provides a kind of crudy, the chair headrest bar open slot roll extrusion frock that production efficiency is high.

The utility model chair headrest bar open slot roll extrusion frock, comprise guide pad, compact heap, roller and rolling wheel support, the pilot hole that runs through about the middle part of described guide pad is provided with, the upper surface of guide pad is provided with locating slot under the some workpiece vertical with pilot hole, have some hobboing cutters hole under the every described workpiece on the locating slot, described hobboing cutter hole is connected with pilot hole, the upper surface of described pilot hole is provided with the some roller gathering sills that run through the hobboing cutter hole from left to right, described compact heap is arranged on the top of guide pad, the lower surface of compact heap is provided with locating slot on the some workpiece, locating slot is corresponding with locating slot under the workpiece on the described workpiece, described rolling wheel support is arranged on the left side of guide pad, corresponding with the opening of pilot hole, the upper surface of the frame of roller is provided with some roller grooves from left to right, also be provided with the some axis holes vertical in the horizontal direction with roller groove, described some rollers are arranged in the roller groove, and be sleeved in the axis hole the axle on, roller can rotate in roller groove, roller is corresponding with the position of roller gathering sill, and the number of rollers of suit is not more than the quantity of roller gathering sill on every axle, and described every roller groove internal trolley height evenly descends from left to right.

The utility model chair headrest bar open slot roll extrusion frock, the outer rim of wherein said roller comprises at least one cylindrical side and a frustum cone side, described cylinder and round platform and roller coaxial line.

Roller in the utility model chair headrest bar open slot roll extrusion frock, wherein said every roller groove is no less than 3.

The utility model chair headrest bar open slot roll extrusion frock, the left side of wherein said rolling wheel support is equipped with fixed head.

The utility model chair headrest bar difference from prior art is

The utility model chair headrest bar open slot roll extrusion frock adopts guide pad and compact heap fixation workpiece, the roller of installing on rolling wheel support height from left to right reduces gradually, when rolling wheel support drive roller enters in the pilot hole, roller montant to workpiece from the hobboing cutter hole carries out the staged roll extrusion, gradually with the open slot roll forming.Utilize the wall thickness of the open slot that the utility model chair headrest bar open slot roll extrusion frock produces identical, reduced the influence of open slot as far as possible head rest pole intensity with the thickness of montant tube wall.

The roller outer rim comprises at least one cylindrical side and a frustum cone side in the utility model chair headrest bar open slot roll extrusion frock, makes roller upper side wall, bottom land and three planes of lower wall in can disposable roll extrusion open slot, has improved production efficiency.

Below in conjunction with accompanying drawing chair headrest bar open slot roll extrusion frock of the present utility model is described further.

Description of drawings

Fig. 1 is the structural representation of automotive seat;

Fig. 2 is an A place partial enlarged drawing among Fig. 1;

Fig. 3 a is the front view of traditional Chinese chair head rest pole;

Fig. 3 b is a B place partial enlarged drawing among Fig. 3 a;

Fig. 4 is the front view of the utility model chair headrest bar open slot roll extrusion frock;

Fig. 5 a is the vertical view of guide pad in the utility model chair headrest bar open slot roll extrusion frock;

Fig. 5 b is the side view of guide pad in the utility model chair headrest bar open slot roll extrusion frock;

Fig. 6 is the upward view of compact heap in the utility model chair headrest bar open slot roll extrusion frock;

Fig. 7 a is the vertical view of rolling wheel support in the utility model chair headrest bar open slot roll extrusion frock;

Fig. 7 b is the side view of rolling wheel support in the utility model chair headrest bar open slot roll extrusion frock;

Fig. 8 is the side view of first kind of roller in the utility model chair headrest bar open slot roll extrusion frock;

Fig. 9 is the side view of second kind of roller in the utility model chair headrest bar open slot roll extrusion frock;

Figure 10 is the working state schematic representation of the utility model chair headrest bar open slot roll extrusion frock.

Figure 11 a is the front view of the utility model chair headrest bar open slot roll extrusion frock institute processing work;

Figure 11 b is the partial enlarged drawing at C place among Figure 11 a;

The specific embodiment

As shown in Figure 4, the utility model chair headrest bar open slot roll extrusion frock comprises guide pad 21, compact heap 22, roller 23 and rolling wheel support 24.Shown in Fig. 5 a and Fig. 5 b, the pilot hole 25 that runs through about the middle part of guide pad 21 is processed with, the upper surface of guide pad 21 is provided with locating slot 26 under two workpiece vertical with pilot hole 25, have 5 hobboing cutter holes 27 under the every workpiece on the locating slot 26, hobboing cutter hole 27 is connected with pilot hole 25, and the upper surface of pilot hole 25 is provided with 5 roller gathering sills 28 that run through hobboing cutter hole 27 from left to right.

Compact heap 22 is arranged on the top of guide pad 21, and in conjunction with shown in Figure 6, the lower surface of compact heap 22 is processed with locating slot 29 on 2 workpiece, and locating slot 29 is corresponding with locating slot 26 under the workpiece on the workpiece.

Rolling wheel support 24 is arranged on the left side of guide pad 21, and is corresponding with the opening of pilot hole 25, and the left side of rolling wheel support 24 is equipped with fixed head 33.Shown in Fig. 7 a and Fig. 7 b, the upper surface of rolling wheel support 24 has 5 roller grooves 30 from left to right, also have 6 axis holes 31 vertical in the horizontal direction with roller groove 30, roller 23 is arranged in the roller groove 30, and be sleeved in the axis hole 31 the axle 32 on, be to be set with 5 rollers 23 on the every axle 32, roller 23 can rotate in roller groove 30, roller 23 is corresponding with the position of roller gathering sill 28, every roller groove 30 internal trolleys 23 evenly descend highly from left to right, make the height of roller 23 outer rims be staged decline from left to right.

As Fig. 8 and shown in Figure 9, the outer rim of roller 23 comprises a cylindrical side and a frustum cone side, cylinder and round platform and roller 23 coaxial lines, and wherein a kind of cylindrical side of roller 23 ' is more outside outstanding than frustum cone side.

The course of work of the utility model chair headrest bar open slot roll extrusion frock at first is ready to tubing, the intercepting suitable length, by bar folder with the tubing bending forming; Then montant 12 is placed in the utility model chair headrest bar open slot roll extrusion frock and processes open slot, adjust the difference in height of 23 of the number of roller 23 in the roller groove 30 and adjacent rollers according to the degree of depth of required open slot 13, according on axle 32, the arrange in pairs or groups roller 23 of different outer rim shapes of the shape of required open slot 13, in conjunction with shown in Figure 10, montant 12 is placed under the workpiece of guide pad 21 upper surfaces in the locating slot 26, utilizing hydraulic jack to press down compact heap 22 makes it hold out against the chair headrest bar, utilize hydraulic jack to promote rolling wheel support 24 and in pilot hole 25, move, make roller 23 roll out open slot 13 through roller gathering sill 28 staged on montant 12.

Shown in Figure 11 a, the chair headrest bar that utilizes the utility model chair headrest bar open slot roll extrusion frock to produce comprises a cross bar 11 and two montants 12, two montants 12 are connected with the two ends one of cross bar 11 respectively, montant 12 is a hollow pipe, wherein vertically be provided with 4 open slots 13 on a montant 12, shown in Figure 11 b, open slot 13 comprises integrated upper side wall 14, bottom land 15 and lower wall 16, the vertical connection of tube wall of the outer end of upper side wall 14 and montant 12, inner vertical connection of the upper end of bottom land 15 and upper side wall 14, fixedly connected with the lower end of bottom land 15 in the inner of lower wall 16, fixedly connected with the tube wall of montant 12 in the outer end of lower wall 16, lower wall 16 is downward-sloping from the inside to the outside, upper side wall 14, the pipe thickness of the thickness of bottom land 15 and lower wall 16 and montant 12 is basic identical.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. chair headrest bar open slot roll extrusion frock, it is characterized in that: comprise guide pad (21), compact heap (22), roller (23) and rolling wheel support (24), the pilot hole (25) that runs through about the middle part of described guide pad (21) is provided with, the upper surface of guide pad (21) is provided with locating slot (26) under the some workpiece vertical with pilot hole (25), have some hobboing cutters hole (27) under the every described workpiece on the locating slot (26), described hobboing cutter hole (27) is connected with pilot hole (25), the upper surface of described pilot hole (25) is provided with the some roller gathering sills (28) that run through hobboing cutter hole (27) from left to right, described compact heap (22) is arranged on the top of guide pad (21), the lower surface of compact heap (22) is provided with locating slot on the some workpiece (29), locating slot on the described workpiece (29) is corresponding with locating slot (26) under the workpiece, described rolling wheel support (24) is arranged on the left side of guide pad (21), corresponding with the opening of pilot hole (25), the upper surface of rolling wheel support (24) is provided with some roller grooves (30) from left to right, also be provided with the some axis holes (31) vertical in the horizontal direction with roller groove (30), described some rollers (23) are arranged in the roller groove (30), and be sleeved on the axle (32) in the axis hole (31), roller (23) can rotate in roller groove (30), roller (23) is corresponding with the position of roller gathering sill (28), and roller (23) quantity of the last suit of every axle (32) is not more than the quantity of roller gathering sill (28), and described every roller groove (30) internal trolley (23) evenly descends highly from left to right.

2. chair headrest bar open slot roll extrusion frock according to claim 1, it is characterized in that: the outer rim of described roller (23) comprises at least one cylindrical side and a frustum cone side, described cylinder and round platform and roller (23) coaxial line.

3. chair headrest bar open slot roll extrusion frock according to claim 2 is characterized in that: the roller (23) in described every roller groove (30) is no less than 3.

4. chair headrest bar open slot roll extrusion frock according to claim 3, it is characterized in that: the left side of described rolling wheel support (24) is equipped with fixed head (33).