CN116786656A

CN116786656A - Sheet metal component suppression equipment of borduring

Info

Publication number: CN116786656A
Application number: CN202310635399.XA
Authority: CN
Inventors: 贾鑫; 顾建保; 郑坤义; 宋国辉
Original assignee: Beijing Huandu Top Air Conditioning Co ltd
Current assignee: Beijing Huandu Top Air Conditioning Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-09-22

Abstract

The utility model discloses sheet metal part edge covering pressing equipment which comprises a base, a support frame, an edge biting mechanism and a positioning mechanism, wherein a slide rail is arranged on the base, and the support frame is fixed on the base; the positioning mechanism is positioned on the support frame and can move in the horizontal direction and the vertical direction relative to the support frame; the undercut mechanism is fixed on the slide rail and comprises a plurality of pressing wheels, the pressing wheels are arranged along the advancing direction of the object to be processed, and the positions of the pressing wheels, which are contacted with the object to be processed, have the same linear velocity. The sheet metal part edge-covering pressing equipment provided by the utility model can press folded edges with various specifications, and can continuously press the folded edges, so that the processing quality is high, the equipment cost is reduced, and the production efficiency is improved.

Description

Sheet metal component suppression equipment of borduring

Technical Field

The utility model relates to sheet metal part edge-covering pressing equipment, and belongs to the technical field of machining.

Background

The sheet metal part edge-covering pressing device is mainly used for edge-covering forming of sheet metal parts and can also be used for procedures such as bending and punching. The device consists of an upper die, a lower die, a blank holder die, an electric control system and the like. The sheet metal part edge-covering pressing device is important sheet metal machining equipment, can automatically complete edge-covering forming and pressing procedures of the sheet metal part, improves production efficiency and quality, and reduces production cost. However, the existing sheet metal part edge-covering pressing device can only process specific specifications, and once the specifications of a to-be-machined workpiece are changed, the sheet metal part edge-covering pressing device cannot be adjusted simply to be suitable for edge folding of the to-be-machined workpiece with new specifications.

For example, in the chinese utility model of patent No. ZL 201420065193.4, a novel vertical automatic bending apparatus is disclosed, which comprises a complete machine positioning bracket, a male die and a clamping device, a three-dimensional movable limiting device, a female die and a buffer device, a five-axis positioning power transmission device, and an electric and operation control system. The whole machine positioning bracket limits the specific position of the whole machine, and four feet are provided with rotatable leveling nuts and sucking disc damping buffer seat cushions; the male die is manufactured by adopting special alloy steel processing, and the clamping device is used for fixing the pre-processed product to ensure the processing precision; the three-dimensional movable limiting device is matched with the convex-concave die, the same processed product is fixed in the XYZ three-axis direction, different processed products are replaced, and the XYZ three-axis can be moved to readjust the fixed limiting value of the related parameter; the female die is a main bending forming part, so that the related appearance and processing size of a processed product are ensured, the service life of the die can be prolonged by the buffer device, and the balance stability of the whole machine is maintained; the five-axis positioning power transmission device drives the die through a roller screw and a transmission guide rod matched with the roller screw; the electric and operation control system comprises a high-speed motor, a single-machine PLC controller, a safety operation switch, a related safety protection device and the like.

Disclosure of Invention

The utility model aims to solve the technical problem of providing sheet metal part edge-covering pressing equipment.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

a sheet metal part edge covering pressing device comprises a base, a support frame, an edge biting mechanism and a positioning mechanism; wherein, the liquid crystal display device comprises a liquid crystal display device,

the base is provided with a sliding rail,

the support frame is fixed on the base;

the positioning mechanism is positioned on the support frame and can move in the horizontal direction and the vertical direction relative to the support frame;

the undercut mechanism is fixed on the sliding rail and comprises a plurality of pressing wheels,

the pinch rollers are arranged along the travelling direction of the object to be processed, and each pinch roller has the same linear velocity at a position contacted with the object to be processed.

Preferably, along the travelling direction of the object to be processed, the diameter of the last pressing wheel is smaller than the diameters of the rest pressing wheels;

the remaining pinch rollers have the same diameter except for the last pinch roller.

Preferably, the contact position with the object to be processed refers to a line where the inclined plane of each pressing wheel is connected with the cylindrical surface, and the line is used as a reference point.

Preferably, the taper inclination angle of the inclined plane of each pinch roller is gradually reduced to 0 degrees along the advancing direction of the object to be processed.

Preferably, along the travelling direction of the object to be processed, a first pressing wheel of the pressing wheels comprises a V-shaped groove, and the depth of the V-shaped groove is greater than or equal to the height of the folded edge of the object to be processed.

Preferably, each datum point from the second pinch roller to the last pinch roller in the pinch rollers is coplanar with the bottom of the V-shaped groove along the travelling direction of the object to be processed.

Wherein, preferably, the undercut mechanism further comprises a wheel box, and the pinch roller is detachably arranged on the wheel box;

the wheel box is further provided with rotatable clamping shafts, the clamping shafts correspond to the pressing wheels one by one, and the clamping shafts are used for accommodating folded edges of objects to be processed between the clamping shafts and the pressing wheels.

Wherein preferably the wheel box is movable in a direction perpendicular to the slide rail.

Preferably, the sliding rail comprises a first sliding rail and a second sliding rail which are arranged perpendicular to each other, and the first sliding rail and the second sliding rail are used for driving the undercut mechanism to move.

Wherein preferably, the positioning mechanism stretches in a direction perpendicular to the sliding rail.

Compared with the prior art, the sheet metal part edge-covering pressing equipment provided by the utility model can press folded edges with various specifications, and can continuously press, so that the processing quality is high, the equipment cost is reduced, and the production efficiency is improved.

Drawings

Fig. 1A is a schematic diagram of an overall structure of a sheet metal part edge-wrapping pressing device according to an embodiment of the present utility model;

FIG. 1B is a schematic diagram of the whole structure of the positioning mechanism in FIG. 1;

fig. 2 is a schematic diagram of the structure of the engagement mechanism in fig. 1 after being turned upside down;

FIG. 3 is a schematic view of the backside structure of the snapping mechanism of FIG. 2;

FIG. 4 is a schematic side view of the first puck of FIG. 2;

FIG. 5 is a schematic side view of the second puck of FIG. 2;

FIG. 6 is a schematic side view of the third puck of FIG. 2;

FIG. 7 is a schematic side view of the fourth puck of FIG. 2;

FIG. 8 is a schematic side view of the fifth puck of FIG. 2;

FIG. 9 is a schematic side view of the sixth puck of FIG. 2;

FIG. 10 is a schematic diagram illustrating a seventh puck configuration in FIG. 2;

FIG. 11 is a schematic side view of the first puck engaging the hem of the object to be processed;

FIG. 12 is a schematic side view of the second puck engaging the hem of the object to be processed;

FIG. 13 is a schematic side view of the third puck mated with the flange of the object to be processed;

FIG. 14 is a schematic side view of the fourth puck mated with the flange of the object to be processed;

FIG. 15 is a schematic side view of the fifth puck mated with the flange of the object to be processed;

FIG. 16 is a schematic side view of a sixth puck mated with a flange of an object to be processed;

FIG. 17 is a schematic side view of the seventh puck mated with the flange of the object to be processed.

Detailed Description

The technical contents of the present utility model will be described in detail with reference to the accompanying drawings and specific examples.

As shown in fig. 1A and 1B, the embodiment of the utility model discloses sheet metal part edge covering pressing equipment, which at least comprises a base 1, a support frame 2, an edge biting mechanism 3 and a positioning mechanism 4. The undercut mechanisms 3 may be symmetrically arranged, and press two edges of the object to be processed 100; or may be provided as one strip only to press one side of the object to be processed 100.

As shown in fig. 1A, the base 1 is a cuboid structure, and the base 1 includes a first slide rail 11 and a second slide rail 12 that are disposed perpendicular to each other. The first slide rail 11 extends along the length direction of the base 1 and is used for driving the undercut mechanism 3 to move to a flanging position close to the object 100 to be processed. The top of the first sliding rail 11 is provided with a second sliding rail 12 moving along the direction perpendicular to the length direction of the first sliding rail 11, and the second sliding rail is used for driving the undercut mechanism 3 to move along the direction perpendicular to the travelling direction (the front direction shown in fig. 2). Because the mounting structure is moved vertically between the first slide rail 11, the second slide rail 12 and the undercut mechanism 3, the undercut of metal plates with different lengths can be satisfied by adjusting the position of the undercut mechanism 3.

As shown in fig. 1A, the bottom fixing mechanism 42 is disposed inside the base 1, and is disposed corresponding to the top fixing mechanism 41 in the vertical direction, and includes a bottom fixing plate 421, a bottom cam divider 422, and a bottom positioning plate 423. The bottom fixing plate 421 is disposed at the bottom of the bottom fixing mechanism 42, the top is connected to the bottom cam divider 422, and the top of the bottom cam divider 422 is rotatably connected to the bottom positioning plate 423. The bottom of the bottom locating plate 423 is provided with electromagnets along the periphery, and the electromagnets are matched with the electromagnets arranged at the top of the top locating plate 411, so that the vertical fixation of the object to be processed 100 is realized, and the object to be processed 100 is prevented from being deviated during processing.

The positioning mechanism 4 is arranged on the top of the support frame 2. The positioning mechanism 4 can stretch up and down along the vertical direction, so that the object 100 to be processed can be close to or far away from the first slide rail 11, the second slide rail 12 and the undercut mechanism 3, and the edge covering pressing device is suitable for edge covering pressing of objects 100 to be processed with different sizes.

As shown in fig. 1A and 1B, the positioning mechanism 4 is a liftable rotation structure, and includes a top fixing mechanism 41 and a bottom fixing mechanism 42.

The top fixing mechanism 41 is disposed on top of the support frame 2, and includes a top positioning plate 411, a plurality of guide posts 412, a rotary fixing plate 413, a rotary flange shaft 414, an integral fixing plate 415, a top cam divider 416, a cylinder 417, and a sensor 418. The top positioning plate 411 is disposed at the bottom of the top fixing mechanism 41, and has a top surface connected to the guide post 412, and an electromagnet disposed along the periphery of the top surface for fixing the object 100 to be processed. The guide post 412 has a telescopic structure, one end of which is connected with the top positioning plate 411, and one end of which is connected with the rotation fixing plate 413. A through hole is formed in the middle of the rotary fixing plate 413, and the top of the through hole is correspondingly and fixedly connected with the rotary flange shaft 414. The rotary flange shaft 414 is of a hollow structure, avoidance holes are formed in two ends of the rotary flange shaft, the bottom of the rotary flange shaft is connected with the rotary fixing plate 413, and the top of the rotary flange shaft is connected with the integral fixing plate 415. A through hole is formed in the middle of the integral fixing plate 415, the bottom of the through hole is correspondingly and rotatably connected with the top of the rotary flange shaft 414, and a top cam divider 416 is arranged at the top of the through hole. The top cam divider 416 is provided at the top of the integral fixing plate 415, and the bottom is connected to the cylinder 417. The cylinder 417 is sleeved in the rotary flange shaft 414, one end of the cylinder cover is connected with the top cam divider 416, and one end of the cylinder shaft is connected with the top positioning plate 411. The sensor 414 is disposed within the rotating stub shaft 414. The vertical through channel formed by the integral fixing plate 415, the rotary flange shaft 414 and the rotary fixing plate 413 enables the cylinder 417 cylinder shaft arranged in the rotary flange shaft 414 to vertically stretch and retract, thereby driving the top positioning plate 411 to move up and down and achieving the effect of adjusting the up and down position of the object to be processed 100. Meanwhile, the top cam divider 416 disposed at the top of the air cylinder 417 can drive the air cylinder 417 to rotate left and right, so as to achieve the effect of adjusting the processing angle of the object 100 to be processed.

As shown in fig. 1A, 1B, 2 and 3, the undercut mechanism 3 includes a headstock 31, a wheel box 32, and a pinch roller 33.

The headstock 31 is the bottom end of the undercut mechanism 3. The lower part of the headstock 31 is fixedly connected with the second slide rail 12, and the upper part of the headstock 31 is connected with the wheel box 32 through a lifting sliding table, so that the height adjustment of the undercut mechanism 3 can be realized.

The wheel box 32 includes a wheel box top plate 321, a wheel box bottom plate 322, a wheel box fixing plate 323, and two wheel box side plates 325, and is enclosed into a box structure with one side open. The wheel box bottom plate 322 of the wheel box 32 is movably disposed on top of the headstock 31 in a vertical direction (for example, fixedly connected with the lifting sliding table), so that the wheel box 32 can synchronously lift and lower along with the sliding table. The wheel box fixing plate 323 has a motor and a plurality of gears 324 mounted on a side thereof away from the positioning mechanism 4, and has a plurality of pressing wheels 33 and a clamping shaft 326 mounted on a side thereof toward the positioning mechanism 4. The motor drives the gears to cause the plurality of pinch rollers 33 to form a multi-stage transmission structure. The clamping shafts 326 are fixed to the wheel housing fixing plate 323 and are in one-to-one correspondence with the pressing wheels 33 such that the center line of the clamping shaft 326 and the center line of the corresponding pressing wheel are located in a vertical plane of a vertical horizontal plane.

The axes of rotation of the pinch rollers 33 of the undercut mechanism 3 are coplanar and parallel to the horizontal plane, and the pinch rollers rotate in a direction perpendicular to the second slide rail 12 (i.e., parallel to the direction of extension of the first slide rail 11). Here, a plane in which the extending directions of the first slide rail 11 and the second slide rail 12 are located is defined as a horizontal surface, and a direction perpendicular to the horizontal surface is defined as a vertical direction; a plane perpendicular to the horizontal surface is defined as a vertical plane; the plane parallel to the horizontal surface is defined as the horizontal plane. And the travelling direction of the object to be processed is parallel to the horizontal plane; the movement direction (expansion and contraction direction) of the positioning mechanism 4 is a vertical direction. The object 100 to be processed is previously processed to have a horizontal side 101 and a vertical side 102 (see fig. 11) to press the vertical side 102 to a state of overlapping parallel with the horizontal side 101 with the present sheet metal part hemming press apparatus. Wherein the horizontal side 101 refers to the side parallel to the horizontal surface; the vertical side 102 is the side perpendicular to the horizontal surface.

As shown in fig. 2, the pressing wheels 33 are sequentially arranged along the traveling direction of the object 100, and include a first pressing wheel 331, a second pressing wheel 332, a third pressing wheel 333, a fourth pressing wheel 334, a fifth pressing wheel 335, a sixth pressing wheel 336, and a seventh pressing wheel 337. Pinch roller 33 is removably coupled to wheel housing 32 to replace pinch roller 33 of a different size depending on the size of object 100 to be processed. Those skilled in the art will appreciate that puck 33 could alternatively be rotatably fixedly attached to wheel housing 32.

As shown in fig. 4 and 11, first puck 331 includes a first drive portion 3311 and a first nip portion 3312. The first transmission part 3311 has a cylindrical structure with a smooth surface, one end of which is connected to the wheel box fixing plate 323, and one end of which is fixedly connected to the first engagement part 3312. The surface of the first engaging portion 3312 is provided with a V-groove structure, which can play a role of guiding and limiting the vertical edge 102 of the object 100 to be processed. As shown in fig. 11, the V-groove depth D of the first engaging portion 3312 is equal to or greater than the height of the vertical side 102 to accommodate the vertical side 102.

As shown in fig. 5 and 12, the second puck 332 includes a second driving portion 3321 and a second engaging portion 3322. The second transmission part 3321 has a smooth cylindrical structure, one end of which is connected to the wheel box fixing plate 323, and the other end of which is fixedly connected to the second engagement part 3322 at the reference line C (refer to fig. 14). The second engaging portion 3322 has a tapered structure, and the taper inclination angle θ2 is, for example, 75 °. As shown, the taper angle θ2 refers to an angle between the second engaging portion 3322 and the horizontal plane. .

As shown in fig. 6 and 13, the third pressing wheel 333 includes a third transmission portion 3331 and a third engaging portion 3332. The third transmission part 3331 has a smooth cylindrical structure, one end of which is connected with the wheel box fixing plate 323, and the other end of which is fixedly connected with the third engagement part 3332 at the reference line C. The third engaging portion 3332 has a tapered structure, and the taper inclination angle θ3 is 60 °.

As shown in fig. 7 and 14, the fourth pressing wheel 334 includes a fourth transmission portion 3341 and a fourth engaging portion 3342. The fourth transmission part 3331 has a smooth cylindrical structure, one end of which is connected with the wheel box fixing plate 323, and the other end of which is fixedly connected with the fourth engagement part 3342 at the reference line C. The fourth engaging portion 3342 has a tapered structure, and the taper inclination angle θ4 is 45 °.

As shown in fig. 8 and 15, the fifth puck 335 includes a fifth driving portion 3351 and a fifth engaging portion 3352. The fifth transmission part 3351 has a smooth cylindrical structure, one end of which is connected to the wheel box fixing plate 323, and the other end of which is fixedly connected to the fifth engagement part 3352 at the reference line C. The fifth engaging portion 3352 has a tapered structure, and the taper inclination angle θ5 is 30 °.

As shown in fig. 9 and 16, the sixth pressing wheel 336 includes a sixth transmission portion 3361 and a sixth engaging portion 3362. The sixth transmission portion 3361 has a smooth cylindrical structure, one end of which is connected to the wheel box fixing plate 323, and the other end of which is fixedly connected to the sixth engagement portion 3362 at the reference line C. The sixth engaging portion 3362 has a tapered structure, and the taper inclination angle θ6 is 15 °.

As shown in fig. 10, seventh puck 337 has a smooth surfaced cylindrical structure with no taper angle of inclination, i.e., a surface angle of inclination of 0 °. It can be seen that the taper angle θ from second puck 332 to sixth puck 336 (i.e., the penultimate puck) tapers down to zero at the taper angle θ of seventh puck 337 (the last puck). Moreover, reference lines C of the second to sixth pinch rollers (penultimate pinch rollers) are all coplanar, and the wheel surface thickness (dimension in the horizontal direction) is the same. The datum line C is the boundary line between the conical inclined surface of each pinch roller and the cylindrical surface.

In one embodiment of the present utility model, as shown in fig. 2 and 3, the first pressing wheel 331, the second pressing wheel 332, the third pressing wheel 333, the fourth pressing wheel 334, the fifth pressing wheel 335, the sixth pressing wheel 336, and the seventh pressing wheel 337 are sequentially connected, and form undercut channels of the object to be processed 100 together with the clamping shafts 326 corresponding to each other in the vertical direction.

The working principle of the sheet metal part edge covering pressing device provided by the embodiment of the utility model is described below with reference to fig. 11 to 17. In one embodiment of the utility model, the positioning mechanism 4 delivers the object to be added 100 to the undercut mechanism 3. The object 100 has been advanced into a right angle configuration comprising a horizontal side 101 and a vertical side 102. As shown in fig. 4 and 11, vertical edge 102 advances along the V-shaped groove of first pinch roller 331 (vertical edge 102 is clamped in the V-shaped groove of first nip 3312 to feed the vertical edge); the horizontal edge 101 advances along the gap between the first gear 331 and the clamping shaft 326. Since the horizontal edge 101 moves forward along the gap between the pinch roller 33 and the clamping shaft 326, which are connected in sequence, its shape is not changed, and only the pressing process of the vertical edge will be described below.

Vertical side 102 continues to travel to second puck 332 after being fed out of the V-groove of first puck 331. As shown in fig. 5 and 12, the inclined surface of the second engaging portion 3322 of the second pressing wheel 332 applies a pressing force to the vertical edge 102 of the workpiece in the direction of the workpiece 100. Since the groove bottom of the V-groove is coplanar with the reference line C of the second engaging portion 3322, when the vertical side 102 is fed out of the V-groove (the depth D is equal to or greater than the height of the vertical side 102), the line connecting the vertical side 102 and the horizontal side 101 abuts against the reference line C of the second engaging portion 3322, and the vertical side 102 is attached to the inclined surface of the second pressing wheel 332, and receives a pressing force perpendicular to the surface of the second engaging portion 3322. The pressing force can be decomposed into horizontal force components, and the vertical edge is pushed in the horizontal direction, so that the vertical edge is inclined at a small angle and is no longer perpendicular to the horizontal edge.

As shown in fig. 6 to 9 and 13 to 17, the vertical side 102 after being inclined at a small angle continues to move forward, and as the tapered inclination angles of the engagement portions of the third to sixth pinch rollers connected in sequence become gradually smaller (for example, the inclination angle θ2=75° of the second pinch roller, the inclination angle θ3=60° of the third pinch roller, the inclination angle θ4=45° of the fourth pinch roller, the inclination angle θ5=30° of the fifth pinch roller, and the inclination angle θ6=15° of the sixth pinch roller), the vertical side 102 is gradually inclined toward the horizontal side 101 by the urging force of the inclined surfaces of the second to sixth pinch rollers in sequence. Finally, the workpiece is extruded by a seventh pressing wheel 337 with the inclination angle of the occlusal part of 0 degree, the vertical edge and the horizontal edge of the workpiece to be processed are overlapped (as shown in figure 17), and the occlusal rolling is completed.

For further ease of understanding, the structure of each puck will be described in detail herein in connection with FIGS. 11 through 17. In this process, the V-groove depth D of first puck 331 is greater than or equal to the height of vertical edge 102 above the surface of the backing plate. In fig. 11, T1 is the thickness of the horizontal side; t2 is the thickness of the lining plate. And the thickness of the first pressing wheel 331 is larger than that of other pressing wheels, so that the first pressing wheel 331 can guide and limit the side edge of a workpiece not to be in an over-width with the second pressing wheel in a state that the vertical edge is clamped in the V-shaped groove

The sixth pinch roller will not scratch the side edge. In other words, the length of the horizontal side 101 in the horizontal direction is greater than the length (thickness) of the second engaging portion 3322, the third engaging portion 3332, the fourth engaging portion 3342, the fifth engaging portion 3352, and the sixth engaging portion 3362 in the horizontal direction.

As shown in fig. 12 to 16, the diameters of the second pressing wheel to the sixth pressing wheel are the same and the centers of the circles are on the same horizontal line, and are parallel to the advancing direction of the workpiece to be processed. Moreover, the reference line C of the second to sixth pressing wheels is a reference point, and is exactly abutted against the intersection line of the horizontal side 101 and the vertical side 102. In other words, the vertical edge 102 is just attached to the bevel. By such a design, the diameter of the reference line C is the diameter of each pinch roller (the diameter of each pinch roller is the same), and by a transmission shift design of the gear 324 inside the wheel box 32, the linear velocity at the reference line C (reference point) of the second pinch roller to the sixth pinch roller can be kept the same. That is, the linear velocity of the datum point of the second to sixth pressing wheels, which is in contact with the object 100 to be processed, is the same, and the sliding rail velocity is matched, so that the forward speeds of the pressing module (pressing wheel 33) and the power pushing module (sliding rail 11) are matched, V _{Datum point} ＝V _Travel 。

Since the reference lines C of the second to sixth pressing wheels are all located on the same vertical plane and have the same diameter and different angles, the vertical side 102 is gradually pressed toward the horizontal side 101 along the traveling direction. Such a design is suitable for continuous processing and is not limited to the length of the vertical sides. That is, the vertical edges of any length can be machined (the number of wheels is increased accordingly, and the taper angle is adjusted accordingly, as required).

The seventh pinch roller is a final pinch roller, is a flat wheel, has smaller radius than the previous pinch rollers (the first pinch roller to the sixth pinch roller), and is different from the first pinch roller by a thickness T1. The circle center of the seventh pressing wheel and the circle centers of the other pressing wheels are in the same horizontal line, and the length (thickness) of the seventh pressing wheel in the horizontal direction is larger than the length of the horizontal edge, so that the seventh pressing wheel can apply downward pressure to the whole edge. The compression coefficient is a positive number less than or equal to 1, and is selected according to actual needs.

In one embodiment of the present utility model, the positioning mechanism 4 clamps the object 100 to be processed in the middle by the top positioning plate 411 and the bottom fixing plate 421; the vertical plane position of the object to be processed 100 is adjusted by the up-and-down expansion and contraction of the cylinder shaft of the cylinder 417; the horizontal plane position adjustment of the object to be processed 100 is achieved by the same-direction and same-angle rotation of the top cam divider 416 and the bottom cam divider 422. During processing, the accurate positioning of the object to be processed 100 can be effectively realized through the adjustment of the vertical plane and the horizontal plane.

It should be noted that the number and the size of the pressing wheels need to be selected according to the physical characteristics of the object to be processed, and are not limited to the number or the size mentioned in the embodiment of the present utility model. The utility model is also suitable for overlapping pressing of horizontal edges. The horizontal or vertical edges are denoted herein by folds. For different objects to be processed, according to the rigidity of the materials or the size of the folded edges (for example, D, T two objects to be processed with different sizes in the figure), different taper inclination angles or different numbers of pressing wheels are selected, and only the situation that the taper inclination angles are gradually reduced at the datum line C where the pressing wheels are in contact with the folded edges and the linear speeds are the same is ensured, so that the objects to be processed are stressed to be deformed gradually in the advancing process.

In summary, according to the sheet metal part edge covering pressing device provided by the embodiment of the utility model, the inclined angle of the side surface of the pressing wheel is gradually reduced to 0 degrees, so that the effect of rolling and undercut is finally achieved. Meanwhile, the pinch rollers are arranged into a detachable structure, and the pressing of objects to be processed with different plate thickness specifications can be realized by replacing the pinch rollers with different sizes. The occlusion mechanism is arranged into a movable structure, so that objects to be processed with different lengths can be occluded. The positioning mechanism is arranged into a telescopic rotating structure, so that objects to be processed with different heights and different directions can be meshed. The sheet metal part edge-covering pressing equipment is simple in structure, suitable for various objects to be processed, effectively improves production efficiency, and saves equipment cost.

The sheet metal part edge-covering pressing equipment provided by the utility model is described in detail. Any obvious modifications to the present utility model, without departing from the spirit thereof, would constitute an infringement of the patent rights of the utility model and would take on corresponding legal liabilities.

Claims

1. The sheet metal part edge covering pressing equipment is characterized by comprising a base, a support frame, an edge biting mechanism and a positioning mechanism; wherein, the liquid crystal display device comprises a liquid crystal display device,

the base is provided with a sliding rail,

the support frame is fixed on the base;

2. The sheet metal part hemming press apparatus of claim 1 wherein:

along the advancing direction of the object to be processed, the diameter of the last pressing wheel is smaller than the diameters of the rest pressing wheels;

3. Sheet metal part edge covering pressing equipment as claimed in claim 1 or 2, wherein:

the position contacted with the object to be processed is a line where the inclined plane of each pinch roller is connected with the cylindrical surface, and the line is used as a reference point.

4. A sheet metal part hemming press apparatus as claimed in claim 3 wherein:

and gradually reducing the conical inclination angle of the inclined surface of each pinch roller to 0 degree along the advancing direction of the object to be processed.

5. The sheet metal part hemming press apparatus of claim 4 wherein:

along the advancing direction of the object to be processed, a first pinch roller of the pinch rollers comprises a V-shaped groove, and the depth of the V-shaped groove is greater than or equal to the height of the folded edge of the object to be processed.

6. The sheet metal part hemming press apparatus of claim 5 wherein:

and along the advancing direction of the object to be processed, the datum points of the second pinch roller to the last pinch roller are coplanar with the bottom of the V-shaped groove.

7. The sheet metal part hemming press apparatus of claim 6 wherein:

the undercut mechanism also comprises a wheel box,

the pinch roller is detachably arranged on the wheel box,

8. The sheet metal part hemming press apparatus of claim 7 wherein:

the wheel box can move in a direction perpendicular to the sliding rail.

9. The sheet metal part hemming press apparatus of claim 8 wherein:

the sliding rail comprises a first sliding rail and a second sliding rail which are arranged perpendicular to each other and used for driving the undercut mechanism to move.

10. The sheet metal part hemming press apparatus of claim 9 wherein:

the positioning mechanism can stretch and retract in the direction perpendicular to the sliding rail.