CN113562392B

CN113562392B - A quick positioning fixture for wheel hub flow process

Info

Publication number: CN113562392B
Application number: CN202110838731.3A
Authority: CN
Inventors: 张素青
Original assignee: Shanghai Yuanji New Material Co ltd
Current assignee: Zhang Suqing
Priority date: 2021-07-13
Filing date: 2021-07-23
Publication date: 2023-02-10
Anticipated expiration: 2041-07-23
Also published as: CN113562392A

Abstract

The invention relates to a quick positioning fixture for hub flow processing, which comprises conveyor belts, wherein two groups of conveyor belts are horizontally distributed in a mirror image manner; a plurality of groups of fixed axles are installed to two sets of conveyer belt side mirror images, and supporting component is all transversely installed to two liang of relative fixed axle medial surfaces, supporting component middle section is through linking the vertical subassembly of lifting of installing of arm, it is the cam form to lift the subassembly, it is equipped with the punching press expansion assembly to lift subassembly middle section shaft hole interpolation, the punching press expansion assembly is the stand form, punching press expansion assembly outer lane cover is equipped with wheel hub. The invention adopts double-station synchronous lifting transportation, and can be matched with a circulating flow conveyor belt to finish the positioning fixture for synchronous machining and detection of upper and lower positions. The structure of the punching expansion fixed hub can reduce the exposed volume of the fixed structure which cannot be played on the hub.

Description

A quick positioning fixture for wheel hub flow process

Technical Field

The invention relates to the technical field of automobile part machining, in particular to a rapid positioning clamp for hub flow machining.

Background

The hub is a cylindrical metal part with the inner contour of the tire supporting the tire and the center of the metal part is arranged on the shaft, namely a rim, a steel ring, a wheel and a tire bell. In the aluminum alloy wheel hub course of working, frock positioning fixture is one of its indispensable equipment of processing, and its main function is for in the wheel hub manufacturing procedure, carry out the centre gripping to wheel hub and fix. In the prior art, when an aluminum alloy hub tooling positioning clamp clamps a hub, the clamp and the aluminum alloy hub are generally in a rigid connection mode, and when the clamping force is large, the hub can be damaged to a certain extent; in the transportation process, the assembly line can only be longitudinally provided with one group of horizontal transportation equipment components, and the re-inspection needs to complete the transportation belt of the same assembly line through secondary circulation, so that the efficiency is low.

Aiming at the problems, the invention adopts a transportation positioning clamp which can complete production processing and rechecking through a longitudinal double-flow line, and a rapid positioning clamp which is matched with detection tools such as an upper CCD (charge coupled device), a lower CCD and the like to complete the hub production process.

Disclosure of Invention

In order to solve the problems, the invention discloses a quick positioning clamp for hub flow processing, which can complete double-station processing and sorting procedures of an upper rotary line and a lower rotary line of a conveyor belt for a hub through a fixed lifting assembly matched with a stamping expansion assembly, match the hub style and avoid irregular shaking in the hub transportation process.

In order to achieve the purpose, the invention provides a rapid positioning fixture for the flow processing of hubs, which comprises conveyor belts, wherein two groups of conveyor belts are horizontally distributed in a mirror image manner; a plurality of groups of fixed axles are installed to two sets of conveyer belt side mirror images, and supporting component is all transversely installed to two liang of relative fixed axle medial surfaces, supporting component middle section is through linking the vertical subassembly of lifting of installing of arm, it is the cam form to lift the subassembly, it is equipped with the punching press expansion assembly to lift subassembly middle section shaft hole interpolation, the punching press expansion assembly is the stand form, punching press expansion assembly outer lane cover is equipped with wheel hub.

Further, the fixed shaft is completely provided with a shaft sleeve.

Still further, the support assembly includes a bearing shaft; the bearing mechanism is characterized in that a connecting shaft is connected between the two groups of bearing shafts, a second bearing is sleeved on the connecting shaft, two groups of extension sleeves are movably mounted on two sides of the second bearing, each extension sleeve is in a semi-sleeve shape, and a guide key on the inner wall of each extension sleeve is clamped with a limiting groove formed in the outer ring of each bearing shaft.

Furthermore, a pipe groove is horizontally welded on the outer ring of the second bearing, and a connecting arm is fixedly inserted in the pipe groove.

Still further, the lift assembly includes a fan wing; a sleeve is welded and fixed between the two groups of fan wings, a first bearing is clamped in the sleeve, an extrusion shaft sleeve is pasted on an inner ring of the first bearing, an expansion cavity is reserved in the center of the extrusion shaft sleeve, and a stamping expansion assembly is inserted in the expansion cavity.

Still further, the punch expansion assembly includes an expansion tip; the expansion end is fixedly installed at the top port of the flange, a plurality of groups of expansion valves are installed at the top of the expansion end, the top of each expansion valve is fixedly connected with a clamping protruding block, and the clamping protruding blocks are selectively clamped with grooves in the inner wall of the extrusion shaft sleeve.

Furthermore, an expansion shaft is longitudinally inserted into the bottom of the flange, a thread layer is reserved on the top of the expansion shaft, the expansion shaft extends into the expansion end along the insertion hole and is in pushing contact with the expansion valve, and the packaging cover at the root of the expansion shaft is in selective sealing butt joint with the port at the bottom of the flange.

Furthermore, a movable ring groove is horizontally formed in the end face of the top of the fan wing arranged in the lifting assembly, two groups of limiting rollers are vertically inserted into the movable ring groove, and the limiting rollers are inserted into the gaps of the hubs.

By adopting the structure, compared with the prior art, the invention adopts double-station synchronous lifting transportation, can also be matched with a circularly flowing conveying belt to finish the positioning fixture for synchronously processing and detecting the upper position and the lower position, and can be matched with various detection and processing mechanical arms to synchronously finish two groups of hub processing and detection procedures at the longitudinal position in the positioning process. The structure of the hub is fixed through punching expansion, the exposed size of the fixed structure which cannot be played by the hub can be reduced, and the transportation convenience is improved. Utilize spacing voussoir as supporting the original paper, the wide big contact surface of accessible bottom restricts spacing roller displacement, still can utilize great lifting surface dispersion atress simultaneously, has guaranteed that wheel hub can not appear because of rocking or other external force contact and lead to wheel hub collision spacing roller to take place the situation of local deformation or slope at the in-process of transportation.

Drawings

Fig. 1 is a partial top view of a quick positioning fixture for hub line machining according to the present invention.

Fig. 2 is a top view of a quick positioning fixture lifting assembly for hub line machining according to the present invention.

FIG. 3 is a partial schematic structural view of a quick positioning fixture support assembly for hub line machining according to the present invention.

Fig. 4 shows a stamping expansion assembly of a quick positioning fixture for hub line processing according to the present invention.

List of reference numerals: the device comprises a conveyor belt 1, a hub 2, a stamping expansion assembly 3, a lifting assembly 4, a fixed shaft 5, a support assembly 6, a sleeve shaft 7, a fan wing 8, a first bearing 9, a limiting roller 10, an extrusion shaft sleeve 11, an expansion cavity 12, a movable ring groove 14, a bearing shaft 15, a limiting groove 16, a second bearing 17, an extension sleeve 18, a connecting arm 19, an insertion hole 20, a clamping bump 21, an expansion end 22, an expansion shaft 23, a packaging cover 24, a thread layer 25, a flange 26 and an expansion valve 27.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the rapid positioning fixture for hub line processing of the present invention comprises conveyor belts, two sets of which are horizontally arranged in a mirror image manner; a plurality of groups of fixed axles 5 are installed to 1 side mirror image of two sets of conveyer belts, and supporting component 6 is all transversely installed to two liang of relative fixed axle 5 medial extremity face, supporting component 6 middle section is through linking the arm 19 vertical installation and lifting subassembly 4, it is cam form to lift subassembly 4, it is equipped with stamping expansion subassembly 3 to lift the interpolation of subassembly 4 middle section shaft hole, stamping expansion subassembly 3 is the stand form, the 3 outer lane covers of stamping expansion subassembly are equipped with wheel hub 2. The invention adopts a circulating type conveying belt 1 as a conveying core device, a worker starts an operation program, a hub 2 is horizontally placed at the upper end of a lifting assembly 4 through an external mechanical arm, and the lifting assembly 4 is arranged on the inner side of the conveying belt 1 in a matching manner with a supporting assembly 6. The supporting component 6 can be replaced or the maintenance process can be completed at any time according to the requirement through the fixing shaft 5 and the side edge of the conveyor belt 1; after wheel hub 2 was placed to the level, the external punching press arm of the vertical installation at accessible top will punch expansion assembly 3 vertically insert to wheel hub 2 in, and the top of punching press expansion assembly 3 stretches into to lifting in the inflation cavity 12 at 4 centers of subassembly along wheel hub 2's central through-hole, accomplish the fixed process of inside inflation, thereby cooperation wheel hub 2 fixed mounting lifts 4 tops of subassembly, and fixed lifting assembly 4 can cooperate conveyer belt 1 to accomplish the transportation of invering, the in-process of invering the transportation can cooperate equipment instruments such as artifical or CCD to accomplish subsequent detection processes. In the detection process, the defective product disassembly process of the hub 2 can be completed by the system instruction in cooperation with the pneumatic mechanical arm at the bottom, and in order to cooperate with the disassembly process, the driving of the conveyor belt 1 can adopt a stepping mode.

As shown in fig. 1, the fixed shaft 5 is completely fitted with a boss 7. The shaft sleeve 7 can be matched with the fixed shaft 5 to finish reinforced transverse installation, and local abrasion or deformation of the fixed shaft 5 in transportation is avoided.

As shown in fig. 1, 2 and 3, the support assembly 6 includes a bearing shaft 15; be connected with even axle between two sets of bearing shaft 15, it is equipped with second bearing 17 to overlap on the even axle, second bearing 17 both sides movable mounting has two sets of cover 18 that extend, it is half cover tube-shape to extend cover 18, the guide key of extension cover 18 inner wall and the spacing groove 16 joint that bearing shaft 15 outer lane was seted up. The supporting component 6 is a transverse device for supporting longitudinal devices, the supporting component 6 comprises two groups of bearing shafts 15, the two groups of bearing shafts 15 are distributed in a mirror image manner, and hollow non-contact states are formed between the bearing shafts 15 distributed in the mirror image manner; the connecting shaft connected between the bearing shafts 15 is provided with a second bearing 17, the second bearing 17 can keep the lifting assembly 4 in a vertical connection relation with the second bearing under a motion state, and the hub 2 is kept on a horizontal plane parallel to the conveyor belt 1 as far as possible, so that the subsequent processing and detection procedures can be conveniently finished. In the state that the second bearing 17 is used as a supporting body, a local rotation condition may occur, so that the outer ring of the second bearing 17 is thickened, and two groups of extension sleeves 18 are inserted on the outer ring transversely. The extension sleeve 18 is in a half-cylinder-wall shape in structure, the size of the extension sleeve is attached to the end face of the outer side of the connecting shaft, in the attaching process, a guide key integrally formed on the end face of the inner side of the extension sleeve 18 is in limit clamping connection with the limit groove 16, so that the rotating function of the outer ring of the second bearing 17 is further limited, and finally, the outer ring of the second bearing 17 serves as a reference object to provide a rotating angle changing process of the inner ring in the conveying process of the conveying belt 1 in a rotating fit with the bearing shaft 15.

As shown in fig. 3, a pipe groove is horizontally welded on the outer ring of the second bearing 17, and the connecting arm 9 is fixedly inserted in the pipe groove. The pipe groove welded on the outer ring of the second bearing 17 is used as a port vertically connected with the lifting assembly 4, and the lifting assembly 4 is fixedly arranged in the pipe groove through the connecting arm 9 vertically arranged at the bottom and is fixed.

As shown in fig. 3 and 4, the lifting assembly 4 comprises a fan wing 8; a sleeve is welded and fixed between the two groups of fan wings 8, a first bearing 9 is clamped in the sleeve, an extrusion shaft sleeve 11 is pasted on an inner ring of the first bearing 9, an expansion cavity 12 is reserved in the center of the extrusion shaft sleeve 11, and a stamping expansion assembly 3 is inserted in the expansion cavity 12. The lifting assembly 4 serves as an important component for supporting the hub 2, the lifting mode is horizontal lifting, in the installation and fixation process, the lifting assembly 4 is installed in a pipe groove of the second bearing 17 in advance through a connecting arm 9 vertically fixed on the back of the fan wing 8, the front of the fan wing 8 completes the hub 2 fixing process in a mode that the first bearing 9 installed in the center of the sleeve is matched with the stamping expansion assembly 3 to clamp up and down, but the hub 2 can be horizontally rotated through manual work or mechanical equipment while being longitudinally fixed, and therefore the hub 2 or the hub 2 is machined through multi-aspect detection. Since the inner ring of the first bearing 9 cannot bear the built-in expansion stress of the press expansion assembly 3 for a long time, the press sleeve 11 is installed inside the first bearing 9, and the press expansion assembly 3 is fitted through the press sleeve 11 to complete the internal expansion fixing process.

As shown in fig. 1, 3 and 4, the punch expansion assembly 3 includes an expansion tip 22; expansion end 22 fixed mounting is in flange 26 top port department, a plurality of groups expansion valve 27 are installed at expansion end 22 top, expansion valve 27 top fixedly connected with clamps lug 21, clamp lug 21 and the recess selectivity joint of extrusion axle sleeve 11 inner wall. An expansion shaft 23 is longitudinally inserted into the bottom of the flange 26, a thread layer 25 is reserved on the top of the expansion shaft 23, the expansion shaft 23 extends into the expansion end head 22 along the insertion hole 20 and is in pushing contact with an expansion flap 27, and an encapsulation cover 24 at the root of the expansion shaft 23 is in selective sealing butt joint with a port at the bottom of the flange 26. Wherein, as the punching expansion component 3, it is required to provide a built-in stable expansion stress, and the expansion shaft 23 can be vertically inserted from outside to inside, push and extrude the expansion flap 27 movably mounted on the expansion end head 22, and the extruded expansion flap 27 can be pushed outwards; and the clamping convex block 21 at the top of the expansion flap 27 is selectively clamped with the groove on the inner wall of the extrusion shaft sleeve 11, so that the positioning process is completed. The encapsulation cover 24 can then be encapsulated at the bottom port of the flange 26 by an external robotic arm, completing the integrated encapsulation process.

As shown in fig. 1 and 2, a movable ring groove 14 is horizontally formed in the top end surface of a fan wing 8 arranged in the lifting assembly 4, two groups of limiting rollers 10 are vertically inserted into the movable ring groove 14, and the limiting rollers 10 are inserted into the gap of the hub 2. In order to limit the jolting and the shaking of the hub 2, a movable ring groove 14 is formed in the fan wing 8, and a horizontal fixing process is completed by matching with hubs 2 of different types. A limiting wedge block is inserted into the limiting roller 10 on the outer ring of the movable ring groove 14. Simultaneously with spacing voussoir as supporting the original paper, the wide big contact surface of accessible bottom limits spacing roller 10 displacement, still can utilize great lifting surface to disperse the atress simultaneously, has guaranteed that wheel hub can not appear because of rocking or other external force contacts and lead to wheel hub collision spacing roller 10 to take place the situation of local deformation or slope at the in-process of transportation.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims

1. A rapid positioning clamp for hub flow machining comprises conveyor belts, wherein two groups of conveyor belts are horizontally distributed in a mirror image manner; the method is characterized in that: the side mirror image of two sets of conveyor belts (1) is provided with a plurality of sets of fixed shafts (5), the end faces of the inner sides of every two opposite fixed shafts (5) are transversely provided with supporting components (6), the middle sections of the supporting components (6) are vertically provided with lifting components (4) through connecting arms (19), the lifting components (4) are in a cam shape, the punching expansion components (3) are inserted into shaft holes in the middle sections of the lifting components (4), the punching expansion components (3) are in a column shape, and the outer rings of the punching expansion components (3) are sleeved with hubs (2);

the lifting assembly (4) comprises a fan wing (8); a sleeve is welded and fixed between the two groups of fan wings (8), a first bearing (9) is clamped in the sleeve, an extrusion shaft sleeve (11) is pasted on the inner ring of the first bearing (9), an expansion cavity (12) is reserved in the center of the extrusion shaft sleeve (11), a stamping expansion assembly (3) is inserted in the expansion cavity (12), and the stamping expansion assembly (3) comprises an expansion end (22); the expansion end head (22) is fixedly arranged at the top port of the flange (26), and a plurality of groups of expansion valves (27) are arranged at the top of the expansion end head (22);

an expansion shaft (23) is longitudinally inserted into the bottom of the flange (26), a thread layer (25) is reserved on the top of the expansion shaft (23), the expansion shaft (23) extends into an expansion end head (22) along an insertion hole (20) and is in pushing contact with an expansion valve (27), and a packaging cover (24) at the root of the expansion shaft (23) is in selective sealing butt joint with a port at the bottom of the flange (26).

2. The quick positioning clamp for the flow processing of the wheel hub according to claim 1, is characterized in that: the fixed shaft (5) is completely provided with a shaft sleeve (7).

3. The quick positioning clamp for the flow processing of the wheel hub according to claim 1, is characterized in that: the support assembly (6) comprises a bearing shaft (15); be connected with even axle between two sets of bearing force axle (15), it is equipped with second bearing (17) to link epaxial cover, second bearing (17) both sides movable mounting has two sets of cover (18) that extend, it is half cover tube-shape to extend cover (18), spacing groove (16) joint that the direction key of extension cover (18) inner wall and bearing force axle (15) outer lane were seted up.

4. The quick positioning fixture for hub flow machining according to claim 3, is characterized in that: and a pipe groove is horizontally welded on the outer ring of the second bearing (17), and a connecting arm (9) is fixedly inserted in the pipe groove.

5. The quick positioning fixture for hub flow machining according to claim 1, is characterized in that: the top of the expansion valve (27) is fixedly connected with a clamping convex block (21), and the clamping convex block (21) is selectively clamped with a groove in the inner wall of the extrusion shaft sleeve (11).

6. The quick positioning fixture for hub flow machining according to claim 1, is characterized in that: lifting subassembly (4) built-in fan wing (8) top end face is improved level and has been seted up movable annular (14), vertical cartridge has two sets of spacing rollers (10) in movable annular (14), spacing roller (10) cartridge is in wheel hub (2) clearance.