CN215279346U - Hemming system for annular workpiece - Google Patents

Abstract

The utility model discloses a crimping system for annular workpieces, which comprises a pre-crimping device, a crimping device and a supporting driving device; the supporting driving device is used for supporting the annular workpiece and driving the annular workpiece to rotate around the axis of the annular workpiece; the pre-curling device and the curling device are respectively arranged at two sides of the annular workpiece; the pre-crimping device is used for pre-crimping the side edge of the annular workpiece, and the pre-crimping angle is 0 degrees < theta <90 degrees; the hemming device is used for hemming the side edge of the annular workpiece after pre-hemming, and the hemming angle is theta > 90 degrees. By adopting the scheme, the annular workpiece can be pre-curled by a certain angle in advance, and the cracking caused by overlarge stress is prevented; different pre-crimping angles can be selected according to annular workpieces with different thicknesses; and the edge curling section is polished.

Description

Hemming system for annular workpiece

Technical Field

The utility model relates to a work piece turn-up technical field, concretely relates to turn-up system for annular work piece.

Background

Currently, in the machining of mechanical products, it is often necessary to crimp the edges of the products to reinforce their strength and to beautify their appearance, while in some special fields, special crimping devices are used to rapidly crimp special workpieces. If the annular workpiece needs to be curled outwards at least 90 degrees by curling the two side edges of the annular workpiece in the curling process, the annular workpiece is thinner, and if the annular workpiece is directly curled to 90 degrees in the curling process, the workpiece can be subjected to overlarge stress, so that the workpiece is cracked. And the annular workpiece is required to be driven to rotate around the annular workpiece, a relatively heavy driving piece is often adopted in the prior art, the operation is complex, the freedom degree of the annular workpiece is low, the annular workpiece is inconvenient to take out and put in, and the edge replacement is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that if 90 degrees are rolled up directly to the thickness that is thinner of annular work piece at the turn-up in-process, can cause the too big problem of the stress that the work piece receives, aim at provides a turn-up system for annular work piece, adopts this scheme, can prevent the stress that receives too big to annular work piece certain angle of turn-up in advance, leads to breaking.

The utility model discloses a following technical scheme realizes:

a hemming system for an annular workpiece comprises a pre-hemming device, a hemming device and a support driving device;

the supporting driving device is used for supporting the annular workpiece and driving the annular workpiece to rotate around the axis of the annular workpiece;

the pre-curling device and the curling device are respectively arranged at two sides of the annular workpiece;

the pre-crimping device is used for pre-crimping the side edge of the annular workpiece, and the pre-crimping angle is 0 degrees < theta <90 degrees;

the hemming device is used for hemming the side edge of the annular workpiece after pre-hemming, and the hemming angle is theta > 90 degrees.

In the scheme, the supporting and driving device can support the annular workpiece, so that the annular workpiece is vertically placed and is driven to rotate around the axis of the supporting and driving device, and the pre-crimping device can pre-crimp the side edge of the annular workpiece, so that the phenomenon that the crimping angle is too large and the stress is too large to cause fracture is prevented; the hemming device can perform hemming on the side edge subjected to pre-hemming again, and the hemming angle can be larger than 90 degrees on the basis of the original hemming angle without hemming, and reaches an ideal angle position.

Further preferably, the pre-crimping device comprises a blank holder assembly and a transverse telescopic device; the blank pressing assembly comprises a clamping piece and a pressing roller used for curling the annular workpiece, the clamping piece is used for clamping the upper end and the lower end of the pressing roller and is rotationally connected with the pressing roller: the compression roller can rotate around the axis of the compression roller; the compression roller is obliquely arranged; and the transverse telescopic device is used for driving the blank pressing assembly to transversely move. The device is used for pre-curling the annular workpiece at a certain angle in advance, and can protect the annular workpiece from being damaged.

Further optimizing, along the direction from the upper end to the lower end of the compression roller, the side surface of the compression roller gradually or in a sectional manner inclines towards one side close to the central axis of the compression roller; the pre-crimping angle of the annular workpiece is selected according to different thicknesses of the annular workpiece.

Further optimizing, the side surface of the compression roller is gradually inclined towards one side close to the central axis of the compression roller, and the inclination of the inclination is gradually reduced; for accommodating more angular variations.

Further preferably, the crimping device comprises a roller and a rotating linear motor; the roller is sleeved at the end part of an output shaft of the rotary linear motor, a large-diameter end and a small-diameter end are sequentially arranged on the roller along the direction far away from the rotary linear motor, a transition arc section is arranged at the connecting position of the large-diameter end and the small-diameter end, and the transition arc section is used for curling; the roller is used for realizing rapid curling of the annular workpiece, and the working efficiency is improved.

Further optimizing, towards the direction far away from the axis of the large-diameter end, the transition circular arc section comprises a first circular arc section and a second circular arc section which are sequentially connected, the first circular arc section gradually inclines towards the direction of the large-diameter end, and the second circular arc section gradually inclines towards the direction of the small-diameter end; the device is used for enabling the curling angle to be at least larger than 90 degrees of curling, and avoiding scratch caused by insufficient outward curling angle.

Preferably, the transition arc section further comprises a third arc section, the third arc section is connected with the second arc section, and the third arc section extends towards the axis direction of the roller; the side edge of the annular workpiece can smoothly enter the transition arc section.

Further preferably, the supporting driving device comprises a supporting driving component and a clamping component; the supporting and driving assembly is used for driving the annular workpiece to rotate around the axis of the annular workpiece, clamping assemblies are arranged at two ends of the annular workpiece, each clamping assembly comprises a support column, a vertical plate and a screw rod, the support column is used for supporting the vertical plate, a long round hole is formed in the vertical plate and arranged in the width direction of the annular workpiece, the screw rods can penetrate out of the long round holes and slide in the length direction of the long round holes, the screw rods are arranged at two ends of the long round holes, and the end parts of the two screw rods are used for clamping two sides of the annular workpiece; the clamping device is used for clamping the annular workpiece and preventing the annular workpiece from turning over.

Further preferably, the supporting and driving assembly comprises a motor, a driving wheel, a driven wheel, a supporting assembly and an inclined platform;

an output shaft of the motor is used for driving a driving wheel to rotate, and the driving wheel is attached to the bottom of the annular workpiece and used for driving the annular workpiece to rotate around the axis of the annular workpiece; the two inclined platforms are oppositely arranged and are respectively arranged at two sides of the driving wheel, the lower end of the inclined plane at the top of each inclined platform is one end close to the driving wheel, a supporting assembly is arranged on the inclined plane of each inclined platform, driven wheels are arranged on the supporting assemblies, and the two driven wheels are respectively arranged at two ends of the annular workpiece and are attached to the outer side surface of the annular workpiece; the annular workpiece edge-changing device is used for stably driving the annular workpiece to rotate, can improve the degree of freedom of the annular workpiece, can be quickly put into and taken out of the annular workpiece, and can be used for quickly changing the edge of the annular workpiece.

The support assembly comprises a sliding block, a fixed rod and two connecting rods, one end of the fixed rod is fixedly connected with the sliding block, the other end of the fixed rod is hinged with one end of each connecting rod, the two connecting rods are respectively arranged at two sides of the fixed rod, a second rotating shaft penetrates through the other ends of the two connecting rods, and the driven wheel is sleeved on the second rotating shaft; the device is used for slowing down the rotating speed of the annular workpiece and is beneficial to curling.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the scheme provides a hemming system for the annular workpiece, and by adopting the scheme, the annular workpiece can be pre-hemmed for a certain angle in advance, so that the annular workpiece is prevented from being cracked due to overlarge stress; different pre-crimping angles can be selected according to annular workpieces with different thicknesses; and the edge curling section is polished.

2. The scheme provides a hemming system for annular workpieces, and by adopting the scheme, the annular workpieces can be quickly hemmed, the working efficiency is improved, the hemming angle exceeds 180 degrees, the annular workpieces are gradually bent to the side, the appearance of the annular workpieces is beautified, the scratches are avoided, and the polished hemming layer can be polished.

3. This scheme provides a turn-up system for annular work piece, adopts this scheme, and this scheme of adoption can realize stablizing the centre gripping to annular work piece according to the not unidimensional of annular work piece when drive annular work piece is rotatory around self, avoids annular work piece because the atress is too big, leads to turning on one's side. The annular workpiece can be stably driven to rotate, the degree of freedom of the annular workpiece is improved, the annular workpiece can be rapidly put in and taken out, and the edge of the annular workpiece can be rapidly changed; and the rough adjustment and the fine adjustment can be carried out according to annular workpieces with different sizes, so that stable support is realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a front view of a hemming system for an annular workpiece according to the present invention;

fig. 2 is a schematic structural view of a blank holder assembly of a hemming system for an annular workpiece according to the present invention;

fig. 3 is a schematic structural diagram of an annular workpiece for a hemming system of the annular workpiece according to the present invention;

fig. 4 is a schematic structural diagram of a hemming device for a hemming system for an annular workpiece according to the present invention;

fig. 5 is a partial view a of a hemming device for a hemming system for annular workpieces according to the present invention;

fig. 6 is a schematic structural view of a driving clamping device of a hemming system for annular workpieces according to the present invention;

fig. 7 is a partial schematic view of a driven clamping device for a hemming system for annular workpieces according to the present invention;

fig. 8 is a partial schematic view of a driven clamping device for a hemming system for annular workpieces according to the present invention;

fig. 9 is a partial schematic view of a driven clamping device for a hemming system for annular workpieces according to the present invention;

fig. 10 is a schematic view of a hemming system for annular workpieces-a driven clamping device-a tilting platform according to the present invention;

fig. 11 is a partial schematic view b of a crimping system-driven clamping device for annular workpieces according to the present invention;

fig. 12 is a transmission diagram of a crimping system-driving clamping device for an annular workpiece according to the present invention.

Reference numbers and corresponding part names in the drawings:

1-a transverse expansion device, 2-a clamping part, 3-a press roll, 4-an annular bulge, 5-an annular workpiece, 6-a first vertical expansion device, 7-a frame, 9-a rotary linear motor, 10-a roller, 11-a transition arc segment, 111-a first arc segment, 112-a second arc segment, 113-a third arc segment, 12-a second vertical expansion device, 13-a frame, 14-a support plate, 15-a motor, 16-a drive wheel, 17-a driven wheel, 18-a tilting platform, 181-an upper support segment, 182-a lower sliding segment, 19-a pinion, 20-a gearwheel, 21-a first rotating shaft, 22-a bearing sleeve, 23-an expansion rod, 24-a sliding block, 25-a fixed rod, 26-a connecting rod, 27-a second rotating shaft, 28-a supporting rod, 29-a transverse shaft, 30-a pull ring, 31-an inner concave ring, 32-a crimping device, 33-a support column, 34-a vertical plate, 35-a screw rod, 36-a long circular hole, 37-a nut, 38-a base, 39-a jack, 40-a sliding device and 41-a pre-crimping device.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

The present embodiment 1 provides a hemming system for an annular workpiece, as shown in fig. 1 to 3, including a pre-hemming device 41, a hemming device 32, and a support driving device 8;

the supporting driving device 8 is used for supporting the annular workpiece 5 and driving the annular workpiece 5 to rotate around the axis of the workpiece;

the pre-curling device 41 and the curling device 32 are respectively arranged at two sides of the annular workpiece 5;

the pre-crimping device 41 is used for pre-crimping the side edge of the annular workpiece 5, and the pre-crimping angle is 0 degrees < theta <90 degrees;

the hemming device 32 is used for hemming the side edge of the annular workpiece 5 after pre-hemming, and the hemming angle is theta > 90 degrees.

In this embodiment, the supporting and driving device 8 can support the annular workpiece 5, so that the annular workpiece 5 is vertically placed, and the annular workpiece 5 is driven to rotate around the axis of the supporting and driving device, the pre-crimping device 41 can pre-crimp the side edge of the annular workpiece 5, so as to prevent the crimping angle from being too large, so that the stress is too large, and the annular workpiece is broken, and then the crimping device 32 can crimp the pre-crimped side edge again, and at this time, the crimping angle can be greater than 90 degrees on the basis of the original non-crimped side edge, and an ideal angle position is reached.

The pre-curling device 41 comprises a blank holder assembly and a transverse telescopic device 1;

the blank pressing assembly comprises a clamping piece 2 and a pressing roller 3 used for curling the annular workpiece 5, wherein the clamping piece 2 is used for clamping the upper end and the lower end of the pressing roller 3 and is rotationally connected with the pressing roller 3: the compression roller 3 can rotate around the axis thereof; the compression roller 3 is obliquely arranged; the transverse telescopic device 1 is used for driving the blank pressing assembly to transversely move.

Compared with the prior art, the problem that the stress borne by the workpiece is overlarge due to the fact that the annular workpiece 5 is thin and the workpiece is directly rolled to 90 degrees in the curling process is solved, the pre-curling device for the annular workpiece 5 is adopted in the scheme, the annular workpiece 5 is pre-curled at a certain angle in advance, and the annular workpiece 5 can be protected from being damaged; specifically, the device comprises a blank pressing component and a transverse telescopic device 1, wherein the blank pressing component comprises a clamping part 2 and a press roll 3, the clamping part 2 comprises a support plate and two clamping plates connected with the upper end and the lower end of the support plate, the two clamping plates clamp the upper end and the lower end of the press roll 3, a rotating shaft penetrates through the two clamping plates and penetrates through the central axis of the press roll 3 to enable the press roll 3 to rotate around the axis of the press roll 3, the inclined angle of the press roll 3 is preferably 40-70 degrees, the phenomenon that the pre-curling angle is too large or too small is avoided, in the pre-curling process, the side face of the press roll 3 is contacted with the side edge of an annular workpiece 5, the annular workpiece 5 is rotated at the moment, the annular workpiece 5 rotates around the axis of the annular workpiece 5, the transverse telescopic device 1 is gradually driven, the blank pressing component is slowly pushed to move towards the annular workpiece 5, and the pre-curling of the side edge of one side of the annular workpiece 5 can be performed, the obtained turned edge is an arc-shaped turned edge which forms a certain angle downwards; and then reversing the annular workpiece 5, repeating the steps, and pre-curling the other side edge to achieve the purpose of pre-curling the annular workpiece 5 by a certain angle in advance.

In this embodiment, along the direction from the upper end to the lower end of the compression roller 3, the side surface of the compression roller 3 gradually or sectionally inclines towards one side close to the central axis of the compression roller 3; because the annular workpieces 5 are thin but have different thicknesses, the angles of the pre-curling edges of the annular workpieces 5 with different thicknesses are also taken into account, and the annular workpieces 5 are prevented from being damaged during the pre-curling; in the scheme, the press roll 3 can be similar to an inverted conical press roll 3, the caliber of the press roll 3 is gradually or sectionally increased from the upper end to the lower end to form different inclined planes, the position of the press roll 3 or the annular workpiece 5 can be adjusted up and down according to different thicknesses of the annular workpiece 5, the side edge of the annular workpiece 5 is in contact with different angle positions on the side surface of the press roll 3, and the pre-curling angle of the annular workpiece 5 is selected.

In this embodiment, the side surface of the compression roller 3 gradually inclines towards one side close to the central axis of the compression roller 3, and the inclination of the inclination gradually decreases; in order to adapt to the change of more angles, in the scheme, the side surface of the compression roller 3 is gradually inclined towards one side close to the central axis of the compression roller 3, namely the side surface is arc-shaped and protrudes outwards, the slope of the side surface is gradually reduced, and the phenomenon that the curling angle of the lower end is too large can be avoided.

In the embodiment, along the central axis direction of the compression roller 3, the side surface of the compression roller 3 is sequentially provided with a plurality of annular protrusions 4, an included angle is formed between the lower end of each annular protrusion 4 and the side surface of the compression roller 3, and the side edge of an annular workpiece 5 is pressed in; in order to quickly select the angle of pre-crimping, in the scheme, a plurality of annular bulges 4 are sequentially arranged on the side surface of the compression roller 3 along the length direction of the compression roller 3, the annular bulges 4 are coaxial with the compression roller 3, an included angle is formed between the lower end of each annular bulge and the side surface of the compression roller 3, the side edge of an annular workpiece 5 is clamped in the annular workpiece, and scales can be marked on the annular bulges 4 for indicating the specific angle of crimping at the position and the applicable thickness range value of the annular bulges 4.

In the embodiment, the outer end face of the annular protrusion 4 is parallel to the inner side face of the annular workpiece 5, and the inner end point of the outer end face of the annular protrusion 4 falls on the side face of the annular protrusion 4; for stabilizing annular work piece 5, in this scheme, the outer terminal surface of annular arch 4 is on a parallel with the medial surface of annular work piece 5, enables the outer terminal surface of annular arch 4 whole cover on 5 medial surfaces of annular work piece, avoids rocking.

In this embodiment, the device further comprises a first vertical telescopic device 6 and a rack 7, wherein the transverse telescopic device 1 and the first vertical telescopic device 6 are both arranged on the rack 7, the transverse telescopic device 1 is connected with the rack 7 in a sliding manner, and the first vertical telescopic device 6 is used for driving the transverse telescopic device 1 to slide vertically; for the adjustment position about driving compression roller 3 to adapt to the different turn-up angle in advance, in this scheme, still be equipped with first vertical telescoping device 6, use first vertical telescoping device 6 to promote horizontal telescoping device 1 and slide in frame 7, in order to drive compression roller 3.

In this embodiment, the transverse expansion device 1 and the first vertical expansion device 6 both adopt hydraulic driving devices; for rapidly controlling and driving the movement of the press roll 3.

In the embodiment, the device further comprises a driving clamping assembly 8, wherein the driving clamping assembly 8 is used for clamping the annular workpiece 5 and driving the annular workpiece 5 to rotate around the axis of the driving clamping assembly; in order to drive the annular workpiece 5 to rotate around the axis of the annular workpiece, and realize pre-curling, the scheme is further provided with a driving clamping assembly 8, wherein the driving clamping assembly 8 can clamp the annular workpiece 5 and drive the annular workpiece 5 to rotate around the axis of the annular workpiece.

Example 2

The embodiment 2 is further optimized based on the embodiment 1, as shown in fig. 4 to 5, the hemming device 32 includes a roller 10 and a rotating linear motor 9;

the running roller 10 cover is located the output shaft tip of rotatory linear electric motor 9, running roller 10 is equipped with big footpath end and path end along the direction of keeping away from rotatory linear electric motor 9 in proper order, the hookup location department of big footpath end and path end is equipped with transition circular arc section 11, transition circular arc section 11 is used for the turn-up.

Compared with the prior art, the problem that the annular workpiece 5 cannot be curled by a common curling device due to the special shape of the annular workpiece 5 is solved, the scheme provides the curling device for the annular workpiece 5, the annular workpiece 5 can be quickly curled by the roller 10, and the working efficiency is improved; specifically, the device comprises a roller 10 and a rotating linear motor 9, wherein the roller 10 is sleeved at the end part of an output shaft of the rotating linear motor 9, at the moment, the rotating linear motor 9 can not only drive the roller 10 to rotate around the axis, but also drive the roller 10 to move along the axis, and the roller 10 is sequentially provided with a small-diameter end and a large-diameter end, in the process that the annular workpiece 5 is vertically arranged and rotates around the axis of the annular workpiece, the rotating linear motor 9 drives the roller 10 to slowly move towards the annular workpiece 5, so that the small-diameter end gradually presses the inner side of the annular workpiece 5, the side edge of the annular workpiece 5 can gradually extend into the transition arc section 11, wherein preferably the direction of rotation of the roller 10 and the annular workpiece 5 is reversed, during the rotation and progressive forward step by step, the side edge of the annular workpiece 5 can be gradually rolled along the length direction of the transition arc section 11 to realize edge rolling.

In this embodiment, the radius of the transition arc segment 11 needs to be 53 times thicker than the thickness of the annular workpiece; in order to avoid damaging the annular workpiece 5 and realize quick curling, in the scheme, the radius of the transition arc section 11 is required to be at least 53 times larger than that of the annular workpiece, so as to avoid that the annular workpiece 5 is too thick to realize curling, even causes damage, or causes damage due to too fast bending angle.

In this embodiment, towards the direction away from the axis of the large-diameter end, the transition circular arc section 11 includes a first circular arc section 111 and a second circular arc section 112 that are sequentially connected, the first circular arc section 111 gradually inclines towards the direction of the large-diameter end, and the second circular arc section 112 gradually inclines towards the direction of the small-diameter end; in order to enable the curling angle to be at least larger than 90 degrees, and avoid the scratch caused by the insufficient outward curling angle, in the scheme, the transition arc section 11 comprises a first arc section 111 and a second arc section 112, when the side edge of the annular workpiece 5 is on the first arc section 111, the transition arc section can be gradually bent to 90 degrees, and when the transition arc section 112 is transited to the second arc section, the bending angle can exceed 90 degrees and is bent towards the annular workpiece 5.

In this embodiment, the transition arc segment 11 further includes a third arc segment 113, the third arc segment 113 is connected to the second arc segment 112, and the third arc segment 113 extends toward the axial direction of the roller 10; in order to beautify the appearance and further avoid scratches, in the scheme, a third arc section 113 is connected behind the second arc section 112, and when the side edge of the annular workpiece 5 moves to the third arc section 113, the bending angle of the third arc section exceeds 180 degrees and gradually extends towards the side edge of the annular workpiece 5, so that the side edge of the annular workpiece 5 is not exposed outside.

In this embodiment, a gap is left between the third arc segment 113 and the small-diameter end, and the size of the gap is larger than the thickness of the annular workpiece 5; in order to make the side edge of the annular workpiece 5 smoothly enter the transition arc segment 11, the gap between the third arc segment 113 and the small-diameter end is required to be larger than the thickness of the annular workpiece 5, and the sizes of the third arc segment and the small-diameter end are preferably equal.

In this embodiment, a polishing layer is attached to the outer side of the roller 10; the edge-curling layer is used for grinding and polishing the edge-curling layer of the annular workpiece 5, so that the edge-curling layer has attractive appearance.

In this embodiment, the polishing layer is made of brown corundum grinding stones.

In this embodiment, still include second vertical telescoping device 12, frame 13 and backup pad 14, backup pad 14 and second vertical telescoping device 12 all locate on frame 13 to with frame 13 sliding connection: the supporting plate 14 can slide along the height direction of the frame 13; a rotating linear motor 9 is fixedly arranged on the supporting plate 14, and the output end of the second vertical telescopic device 12 is connected with the rotating linear motor 9; in order to adjust the height position of the roller 10 to match the annular workpieces 5 with different sizes, in the scheme, a second vertical telescopic device 12, a frame 13 and a supporting plate 14 are further arranged, wherein the frame 13 is used as an integral supporting and bearing device and is arranged on one side of the annular workpieces 5, the supporting plate 14 is connected with the frame 13 in a sliding mode, the rotary linear motor 9 is fixedly arranged on the supporting plate 14, the second vertical telescopic device 12 is arranged at the top of the frame 13, the output end of the second vertical telescopic device is connected with the top of the rotary linear motor 9, and the height positions of the rotary linear motor 9 and the roller 10 can be adjusted under the driving of the second vertical telescopic device 12.

In this embodiment, the second vertical telescopic device 12 is a hydraulic driving device; for rapidly controlling and driving the movement of the roller 10.

In the embodiment, the device further comprises a driving clamping assembly 8, wherein the driving clamping assembly 8 is used for clamping the annular workpiece 5 and driving the annular workpiece 5 to rotate around the axis of the driving clamping assembly; the device is used for driving the annular workpiece 5 to rotate around the axis of the annular workpiece, so that curling is realized.

Example 3

The embodiment 3 is further optimized based on the embodiment 1, as shown in fig. 6 to 12, the supporting driving device 8 comprises a supporting driving component and a clamping component;

the supporting driving assembly is used for driving the annular workpiece 5 to rotate around the axis of the supporting driving assembly, clamping assemblies are arranged at two ends of the annular workpiece 5 respectively and comprise a supporting column 33, a vertical plate 34 and a screw rod 35, the supporting column 33 is used for supporting the vertical plate 34, a long round hole 36 is formed in the vertical plate 34 and arranged along the width direction of the annular workpiece 5, the screw rod 35 can penetrate out of the long round hole 36 and slide along the length direction of the long round hole 36, the screw rods 35 are arranged at two ends of the long round hole 36 respectively, and the end portions of the two screw rods 35 are used for clamping two sides of the annular workpiece 5.

In this embodiment, the supporting driving assembly is used for driving the annular workpiece 5 to rotate around its own axis, so that the curling device 32 curls the side edge of the annular workpiece 5, wherein the annular workpiece 5 can stand on the supporting driving assembly, and at this time, because the annular workpiece 5 is directly placed on the supporting driving assembly and can be acted by a rotating force, at this time, two sides of the annular workpiece 5 need to be limited, and the annular workpiece 5 is prevented from toppling over towards two sides, therefore, the clamping assembly in this scheme is used for clamping the left and right sides of the annular workpiece 5, specifically, wherein the clamping assembly comprises a support 33, a vertical plate 34 and a screw 35, the support 33 is used for supporting the vertical plate 34, raising the height of the vertical plate 34, the upper end of the vertical plate 34 is provided with a long circular hole 36, wherein the long circular hole 36 is arranged along the width direction of the annular workpiece 5, and the screw 35 is inserted into two ends of the long circular hole 36, and the two screws 35 are relatively parallel, at the moment, the length of the screw rods 35 can be adjusted according to the different diameters of the annular workpiece 5, so that the end parts of the screw rods 35, which are close to the annular workpiece 5, are positioned in the annular workpiece 5, the screw rods 35 are extremely close to the side edges of the annular workpiece 5 but are not attached to the side edges, and at the moment, the end parts of the two screw rods 35 can clamp the annular workpiece 5, so that the annular workpiece 5 is prevented from turning on the side; and the screw rods 35 can transversely move along the length direction of the oblong holes 36, and the clamping positions of the two screw rods 35 can be adjusted according to the width of the annular workpiece 5, wherein the height of the screw rods 35 is preferably higher than the radius height of the annular workpiece 5.

In this embodiment, the pillar 33 is provided with a sliding device 40, the upright plate 34 is fixedly connected with the sliding device 40, and the sliding device 40 is used for adjusting the height position of the screw 35; in order to adjust the height of the screw 35 according to the diameter of the annular workpiece 5, in the present embodiment, a sliding device 40 is provided on the pillar 33, wherein the pillar 33 is provided with an inclined surface, and the sliding device 40 can slide on the inclined surface, so as to drive the upright plate 34 and the screw 35 to slide on the inclined surface.

In this embodiment, a plurality of vertical plates 34 are sequentially arranged along the length direction of the screw 35; because screw rod 35 length is longer, for carrying out the stable stay to screw rod 35, avoid screw rod 35 tip whereabouts, this scheme is equipped with a plurality of risers 34 in proper order on screw rod 35 length direction.

In the embodiment, the end of the screw 35 close to the annular workpiece 5 is provided with a nut 37; in order to further stably clamp the annular workpiece 5, in the scheme, the nut 37 is arranged at the end part, close to the annular workpiece 5, of the screw rod 35, the nut 37 is in threaded connection with the screw rod 35, at the moment, the nut 37 is located on the inner side of the annular workpiece 5 and is extremely close to the inner side of the annular workpiece 5, but the nut is not attached to the annular workpiece 5, and the annular workpiece 5 is convenient to limit to move towards the two ends.

In this embodiment, the supporting and driving assembly includes a motor 15, a driving wheel 16, a driven wheel 17, a supporting assembly and an inclined platform 18;

an output shaft of the motor 15 is used for driving a driving wheel 16 to rotate, and the driving wheel 16 is attached to the bottom of the annular workpiece 5 and used for driving the annular workpiece 5 to rotate around the axis of the annular workpiece 5;

the inclined platform 18 is two, two the inclined platform 18 sets up relatively to divide and locate the 16 both sides of drive wheel, the lower extreme on the inclined plane of 18 tops of inclined platform is for the one end that is close to drive wheel 16, be equipped with supporting component on the inclined plane of inclined platform 18, the last driving wheel 17 that is equipped with of supporting component, two from the driving wheel 17 branch locate annular workpiece 5 both ends to laminate with annular workpiece 5 lateral surface.

Compared with the prior art, the driving device for the annular workpiece 5 is often a relatively heavy driving piece and is complex in operation, the degree of freedom of the annular workpiece 5 is relatively low, the annular workpiece 5 is not convenient to take out and put in, and edge changing is not facilitated, the scheme provides the driving device for the annular workpiece 5, the driving wheel 16 and the driven wheel 17 are matched with each other, the annular workpiece 5 can be stably driven to rotate, the degree of freedom of the annular workpiece 5 can be improved, the annular workpiece 5 can be rapidly put in and taken out, and edge changing is rapidly performed on the annular workpiece 5. Specifically, the driving wheel 16 is arranged below the bottom of the annular workpiece 5, the output shaft of the motor 15 drives the driving wheel 16 to rotate around the axis of the driving wheel 16, the side surface of the driving wheel 16 is attached to the outer side surface of the bottom of the annular workpiece 5, the annular workpiece 5 is directly placed on the driving wheel 16, and the driving wheel 16 can drive the annular workpiece 5 to rotate in the opposite direction when rotating, wherein the width of the driving wheel 16 is preferably smaller than that of the annular workpiece 5, so as to avoid influencing the curling of two sides; in the process of driving the annular workpiece 5 to rotate, in order to support, two opposite inclined platforms 18 are arranged on two sides of the driving wheel 16, the top surface of each inclined platform 18 is an inclined plane, the lower end of each inclined platform is close to the driving wheel 16, the upper end of each inclined platform is far away from the driving wheel 16, a supporting assembly is arranged on each inclined plane, a driven wheel 17 capable of freely rotating is arranged on each supporting assembly, two ends of the annular workpiece 5 can respectively fall on the two driven wheels 17 at the moment, the annular workpiece 5 can be supported while the rotation of the annular workpiece 5 is not influenced, and the annular workpiece 5 is prevented from moving towards the rotating direction due to the rotating force.

In this embodiment, the supporting driving assembly further includes a pinion 19, a gearwheel 20, a first rotating shaft 21 and a bearing sleeve 22, the pinion 19 is sleeved on an output shaft of the motor 15, the gearwheel 20 and the driving wheel 16 are both sleeved on the first rotating shaft 21, the pinion 19 and the gearwheel 20 are engaged with each other, and the bearing sleeve 22 is used for supporting the first rotating shaft 21; because the rotation speed of the output shaft of the motor 15 is relatively high, in order to slow down the rotation speed of the annular workpiece 5 and facilitate curling, a speed reducing device is arranged in the scheme, wherein the pinion 19 is sleeved on the output shaft of the motor 15, the gearwheel 20 and the driving wheel 16 are both sleeved on the first rotating shaft 21, at the moment, the gearwheel 20 and the driving wheel 16 can synchronously rotate, and the pinion 19 and the gearwheel 20 are mutually meshed and can drive the driving shaft to rotate; and for the first pivot 21 of stable support, all overlap at first pivot 21 both ends and be equipped with the bearing, the cover is equipped with bearing housing 22 on the bearing, can be fixed in ground through bearing housing 22.

The two inclined platforms 18 are connected through a telescopic rod 23; in order to roughly adjust the device according to the size of the annular workpiece 5, in the scheme, the two inclined platforms 18 are connected through the telescopic rod 23, and the distance between the two inclined platforms 18 can be adjusted through the telescopic rod 23.

The inclined sliding connection of the support assembly and the inclined platform 18: the supporting component can slide along the length direction of the inclined plane; in order to finely adjust the device according to the size of the annular workpiece 5 and realize stable support, in the scheme, the supporting component is connected with the inclined plane in a sliding manner, and the supporting position of the driven wheel 17 is adjusted in the length direction of the inclined plane in sequence so as to adapt to the annular workpieces 5 with different sizes.

In this embodiment, the supporting component includes a sliding block 24, two fixing rods 25 and two connecting rods 26, one end of each fixing rod 25 is fixedly connected to the sliding block 24, the other end of each fixing rod 25 is hinged to one end of each connecting rod 26, the two connecting rods 26 are respectively disposed on two sides of the corresponding fixing rod 25, a second rotating shaft 27 penetrates through the other end of each connecting rod 26, and the driven wheel 17 is sleeved on the second rotating shaft 27. In order to further finely adjust the supporting position of the driven wheel 17 according to the size of the annular workpiece 5, in the present embodiment, the supporting component includes a slider 24, a fixing rod 25 and a connecting rod 26, wherein one end of the connecting rod 26 is hinged to the fixing rod 25, one connecting rod 26 is disposed on each side of the fixing rod 25, the second rotating shaft 27 can penetrate through the other ends of the two connecting rods 26, and the driven wheel 17 is sleeved in the middle of the second rotating shaft 27, and at this time, the driven wheel 1717 can rotate around its axis and is located between the two connecting rods 26.

In this embodiment, support drive assembly still includes bracing piece 28, the middle part sliding connection on slider 24 and inclined plane, the inclined plane both sides are equallyd divide and are equipped with a plurality of indent rings 31, and are a plurality of indent ring 31 sets up along inclined plane length direction, second pivot 27 runs through bracing piece 28 one end, bracing piece 28 is two, two bracing piece 28 divides and locates second pivot 27 both ends, two the bracing piece 28 other end is fixed with cross axle 29, cross axle 29 can transversely stretch into in the indent ring 31 of inclined plane both sides for support from driving wheel 17. For when finely tuning from driving wheel 17, to connecting rod 26 outrigger, in this scheme, along inclined plane length direction, be equipped with a plurality of indent rings 31, wherein indent ring 31's notch direction is towards the upper end direction on inclined plane, and indent ring 31 distributes in the inclined plane both sides, when rotating connecting rod 26, can take out the horizontal pole from indent ring 31, when rotating the assigned position, put into another pair of indent ring 31 with the horizontal pole once more, carry out outrigger.

In this embodiment, the device further comprises a base 38, wherein a groove is formed in the base 38, the groove is a sliding groove, and both the two inclined platforms 18 are slidably connected with the groove and used for adjusting the distance between the two inclined platforms 18; in order to facilitate the rapid adjustment of the distance between the two inclined platforms 18, in the present scheme, the base 38 is disposed at the bottom of each of the two inclined platforms 18, wherein the base 38 is provided with a groove, the groove is a sliding groove, and the inclined platforms 18 and the groove are slidably connected to each other, so that the transverse sliding can be realized.

In this embodiment, the lifting device further includes a jack 39, the jack 39 is disposed on one side of the inclined platform 18, the inclined platform 18 includes an upper supporting section 181 and a lower sliding section 182, the upper supporting section 181 is hinged to the lower sliding section 182, the lower sliding section 182 is slidably connected to the groove, and the jack 39 can drive the upper supporting section 181 to rotate, so as to adjust a supporting radius between the two driven wheels 17; for the not unidimensional according to annular work piece 5, the support radius between two follow driving wheels 17 of quick adjustment, in this scheme, all be equipped with jack 39 below two inclined platform 18, and inclined platform 18 includes support section 181 and lower sliding section 182, lower sliding section 182 can slide in the recess, and the supporting component all locates on the support section 181, it is articulated with lower sliding section 181 to go up support section 181, at this moment under the jacking effect of jack 39, can drive and support the section 181 rotation, be used for driving two to follow the driving wheel 17 and rotate, the adjustment support position.

The specific working principle is as follows: firstly, according to the size of an annular workpiece 5, the distance between two inclined planes is roughly adjusted through a telescopic piece, then two sliding blocks 24 are pulled, the positions of two driven wheels 17 are roughly adjusted, at the moment, the annular workpiece 5 is placed, the height of an inclined platform 18 is adjusted through a jack 39, then the sliding blocks 24 are pulled again, a connecting rod 26 is rotated, a cross rod is lifted out of an inner concave ring 31 and is adjusted to the position where the two driven wheels 17 can stably support the annular workpiece 5, the cross rod is placed into the other pair of inner concave rings 31 to fix the connecting rod 26, the extending length and the width of screw rods 35 on two sides and the limiting position of a nut 37 are adjusted, so that the screw rods 35 can clamp the annular workpiece 5, then a motor 15 is driven, the motor 15 drives a driving wheel 16 to rotate through a first gear and a second gear, and the driving wheel 16 drives the annular workpiece 5 to rotate; then operating a pre-curling device 41 on the side surface of the annular workpiece 5, driving the transverse telescopic device 1 and the first vertical telescopic device 6 to drive the compression roller 3 to move transversely and vertically, selecting an adaptive pre-curling angle degree according to the thickness of the annular workpiece 5, and when the side surface of the compression roller 3 is contacted with the side edge of the annular workpiece 5, driving the clamping assembly 8 to drive the annular workpiece 5 to rotate around the axis of the annular workpiece 5 and slowly pushing the compression roller 3 forwards, so that the pre-curling of the side edge of one side of the annular workpiece 5 can be realized; then, the annular workpiece 5 is reversed, the pre-curling device 41 performs pre-curling on the other side edge of the annular workpiece 5, the curling device 32 curls the pre-curled side edge, the rotating linear motor 9 is driven to rotate, the roller 10 gradually and slowly advances towards the annular workpiece 5 while rotating around the roller, the small-diameter end of the roller 10 is pressed into the inner side of the annular workpiece 5, the side edge of the annular workpiece 5 enters the transition arc section 11 to be curled, and a curling layer can be polished during curling.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. Hemming system for annular workpieces, characterized by comprising a pre-hemming device (41), a hemming device (32) and a support driving device (8);

the supporting and driving device (8) is used for supporting the annular workpiece (5) and driving the annular workpiece (5) to rotate around the axis of the annular workpiece;

the pre-crimping device (41) and the crimping device (32) are respectively arranged on two sides of the annular workpiece (5);

the pre-crimping device (41) is used for pre-crimping the side edge of the annular workpiece (5), and the pre-crimping angle is 0 degrees < theta <90 degrees;

the hemming device (32) is used for hemming the side edge of the annular workpiece (5) after pre-hemming, and the hemming angle is theta > 90 degrees.

2. Hemming system for annular workpieces according to claim 1 characterized in that said pre-hemming device (41) comprises a blank holder assembly and a transverse telescopic device (1); the blank pressing assembly comprises a clamping piece (2) and a pressing roller (3) used for curling annular workpieces (5), wherein the clamping piece (2) is used for clamping the upper end and the lower end of the pressing roller (3) and is rotationally connected with the pressing roller (3): the compression roller (3) can rotate around the axis of the compression roller; the compression roller (3) is obliquely arranged; the transverse telescopic device (1) is used for driving the blank pressing assembly to transversely move.

3. Hemming system for annular workpieces according to claim 2, characterised in that the side of the roller (3) is inclined gradually or in stages towards the side close to the central axis of the roller (3) in the direction from the upper end to the lower end of the roller (3).

4. Hemming system for annular workpieces according to claim 3, characterised in that the side of the roller (3) is inclined gradually towards the side close to the central axis of the roller (3), with the inclination of the inclination decreasing gradually.

5. Hemming system for annular workpieces according to claim 1 characterized in that said hemming device (32) comprises a roller (10) and a rotating linear motor (9); the output shaft tip of rotatory linear electric motor (9) is located to running roller (10) cover, running roller (10) are equipped with big footpath end and path end along the direction of keeping away from rotatory linear electric motor (9) in proper order, the hookup location department of big footpath end and path end is equipped with transition circular arc section (11), transition circular arc section (11) are used for the turn-up.

6. The hemming system for annular workpieces according to claim 5 wherein the transition circular arc section (11) comprises a first circular arc section (111) and a second circular arc section (112) connected in series, the first circular arc section (111) being inclined gradually towards the large diameter end and the second circular arc section (112) being inclined gradually towards the small diameter end.

7. Hemming system for annular workpieces according to claim 6, characterised in that the transition arc (11) further comprises a third arc (113), the third arc (113) being connected to the second arc (112), the third arc (113) extending towards the roller (10) axis.

8. Hemming system for annular workpieces according to claim 1 characterized in that the supporting driving device (8) comprises a supporting driving assembly and a clamping assembly; the supporting driving assembly is used for driving an annular workpiece (5) to rotate around the axis of the supporting driving assembly, the two ends of the annular workpiece are respectively provided with a clamping assembly, each clamping assembly comprises a supporting column (33), a vertical plate (34) and a screw rod (35), the supporting column (33) is used for supporting the vertical plate (34), long round holes (36) are formed in the vertical plate (34) and are arranged along the width direction of the annular workpiece (5), the screw rods (35) can penetrate out of the long round holes (36) and slide along the length direction of the long round holes (36), the two ends of each long round hole (36) are respectively provided with the screw rods (35) and the two ends of each screw rod (35) are used for clamping the two sides of the annular workpiece (5).

9. Hemming system for annular workpieces according to claim 8 characterized in that the supporting driving means (8) comprise an electric motor (15), a driving wheel (16), a driven wheel (17), a supporting assembly and an inclined platform (18);

an output shaft of the motor (15) is used for driving a driving wheel (16) to rotate, and the driving wheel (16) is attached to the bottom of the annular workpiece (5) and used for driving the annular workpiece (5) to rotate around the axis of the annular workpiece (5);

the utility model discloses a circular workpiece (5) is characterized in that slope platform (18) is two, two slope platform (18) sets up relatively to divide and locate drive wheel (16) both sides, the lower extreme on slope platform (18) top inclined plane is for the one end that is close to drive wheel (16), be equipped with supporting component on the inclined plane of slope platform (18), be equipped with on the supporting component from driving wheel (17), two follow driving wheel (17) branch and locate annular workpiece (5) both ends to laminate with annular workpiece (5) lateral surface.

10. The hemming system for annular workpieces according to claim 9 wherein the support assembly comprises a slider (24), a fixing rod (25) and two connecting rods (26), one end of the fixing rod (25) is fixedly connected to the slider (24), the other end of the fixing rod (25) is hinged to one end of the connecting rod (26), the two connecting rods (26) are respectively disposed at two sides of the fixing rod (25), a second rotating shaft (27) penetrates through the other end of the two connecting rods (26), and the driven wheel (17) is sleeved on the second rotating shaft (27).

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