CN113399497B

CN113399497B - Sheet metal bending and pressing equipment

Info

Publication number: CN113399497B
Application number: CN202110678679.XA
Authority: CN
Inventors: 谭稳; 杨海东; 单常清; 刘博�
Original assignee: Hunan Zhichengtang Mechanical And Electrical Co ltd; Shaodong Intelligent Manufacturing Innovative Institute
Current assignee: Hunan Zhichengtang Mechanical And Electrical Co ltd; Shaodong Intelligent Manufacturing Innovative Institute
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-09-16
Anticipated expiration: 2041-06-18
Also published as: CN113399497A

Abstract

The invention provides a metal sheet bending and press-mounting device which comprises a shaping mechanism, a quantitative feeding mechanism, a cutting mechanism and a bending mechanism, wherein the shaping mechanism straightens and shapes a metal sheet, the quantitative feeding mechanism quantitatively conveys the metal sheet, the cutting mechanism cuts the metal sheet at equal length, and the bending mechanism bends and press-mounts each section of the metal sheet at equal length. The mechanism is reasonable in design and compact in connection and matching, the shaping, quantitative feeding, cutting, bending and discharging processes of the metal sheet can be completed in sequence, the processed metal sheet can meet the welding and assembling requirements of the stator, the control is realized in a full-automatic mode, the processing efficiency and quality are effectively improved, and the production cost is reduced.

Description

Sheet metal bending and pressing equipment

Technical Field

The invention relates to the technical field of machining, in particular to a metal sheet bending and press-fitting device.

Background

The stator is a static part of the motor or the generator, a process of welding the copper sheet to a corresponding position of the stator body is carried out in the production and processing process, and the copper sheet with a fixed length needs to be bent into a specific shape to be attached to the stator body, so that the copper sheet needs to be shaped and cut quantitatively in the automatic production process, the bending mechanism is ensured to accurately press and assemble the copper sheet into a preset shape, and most related equipment in the prior art is difficult to be matched with an automatic production line.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides equipment capable of shaping, quantitatively cutting and pressing a metal sheet and bending the metal sheet with a fixed length into a preset shape.

In order to achieve the purpose, the invention provides metal sheet bending and press-fitting equipment which comprises a shaping mechanism, a quantitative feeding mechanism, a cutting mechanism and a bending mechanism, wherein the shaping mechanism straightens and shapes a metal sheet, the quantitative feeding mechanism quantitatively conveys the metal sheet, the cutting mechanism cuts the metal sheet into equal lengths, and the bending mechanism bends and press-fits each section of the metal sheet with equal length.

The shaping mechanism comprises a guide block and a shaping block, a group of guide pulleys are arranged at two ends of the guide block respectively, the shaping block is provided with two shaping blocks, one of the shaping blocks is in a horizontal plane, the other shaping block is in a vertical plane, a plurality of groups of shaping pulleys are arranged on the surface of the shaping block, the shaping pulleys are distributed on the same straight line, each group of the guide pulleys and the shaping pulleys are oppositely arranged, and a metal sheet penetrates through the guide block and the shaping block and is finally straightened and shaped.

Wherein the quantitative feeding mechanism comprises a quantitative guide rail arranged at the tail end of the shaping mechanism, two ends of the quantitative guide rail are respectively and fixedly provided with an installation limiting block, the quantitative guide rail is provided with a movable clamping block, the mounting limit block at the rear end is provided with a fixed clamping block, the movable clamping block is driven by the feeding driving part to quantitatively feed the metal sheets, the movable clamping block and the fixed clamping block are both provided with channels through which the metal sheets pass, a first pressing cylinder and a second pressing cylinder are respectively arranged on the movable clamping block and the fixed clamping block, the end parts of the piston rods of the first pressing cylinder and the second pressing cylinder are respectively provided with a pressing block, an opening is arranged above the channel, the pressing blocks correspond to the openings, the metal sheet is fixed with the movable clamping block and the fixed clamping block through the first pressing cylinder and the second pressing cylinder respectively.

The feeding driving part comprises a feeding motor arranged on one of the installation limiting blocks, the feeding motor is connected with a screw rod structure through a belt pulley group, the screw rod structure drives the movable clamping block to slide back and forth along the quantitative guide rail, and the stroke of the movable clamping block is dependent on the limit ration of the installation limiting block.

Wherein the cutting mechanism comprises a guide block arranged behind the fixed clamping block, a guide chute is arranged on the guide block, the guide chute is aligned with the channel of the fixed clamping block, so that a metal sheet fed by the quantitative feeding mechanism enters the guide chute, a cutting table is arranged at the rear end of the guide block, a mounting frame is arranged above the guide block, a cutting cylinder is arranged at the top end of the mounting frame, a cutting connecting block is arranged at the end part of a piston rod of the cutting cylinder, a cutting mounting block is arranged at the bottom end of the cutting connecting block, the cutting mounting block is elastically connected with the cutting connecting block through a buffer spring, the cutting mounting block is slidably arranged in a chute of the cutting connecting block, a cutting blade is arranged at the bottom end of the cutting mounting block, and the cutting connecting block is driven by the cutting cylinder to move downwards, the metal sheet is cut off downwards by the cutting mounting block and the cutting blade, and the buffer spring enables the contact between the cutting blade and the metal sheet to be instantly subjected to elastic buffer force, so that frequent hard collision is prevented from damaging the junction.

Wherein, the bending mechanism comprises a bearing plate, the upper edge of the bearing plate is flush with the cutting table, a bending cylinder is arranged above the bearing plate, the bending cylinder is fixedly arranged at the top end of the mounting frame, the end part of a piston rod of the bending cylinder is provided with a mounting seat, the mounting seat is in sliding connection with lifting guide rails at two sides of the mounting frame, two bending blocks are oppositely arranged on the mounting seat, the bending blocks are distributed at two sides of the plane where the bearing plate is located, the top end of the bending block is fixedly connected with the mounting seat, a middle block is arranged between the two bending blocks, the middle block is aligned with the bearing plate, a vertical guide rod is arranged on the mounting seat, the middle block is movably arranged on the guide rod through a guide hole and is limited at the bottom end, the mounting seat drives the two bending blocks and the middle block to move downwards under the driving of the bending cylinder, the middle block is limited under the action of the bearing plate to press the middle part of the metal sheet after contacting the middle part of the metal sheet, and the bending blocks at two sides continue to move downwards and press two ends of the metal sheet downwards after contacting the two ends of the metal sheet, so that the strip-shaped metal sheet is gradually bent into a U shape.

The lower surfaces of the bending block and the middle block are respectively provided with a material pressing groove which corresponds to the metal sheet and is aligned with the metal sheet, the material pressing grooves of the bending block and the middle block are initially aligned with the material guide groove, the metal sheet conveyed quantitatively enters the material pressing grooves and is supported by the bearing plate, and the metal sheet positioned in the material pressing grooves is just quantitative in length after the cutting mechanism is cut off.

The material pushing assembly comprises a material pushing block movably arranged on a material pushing guide rod, a clamping groove of the material pushing block is clamped with the bearing plate and the upper edge of the material guide plate, the material pushing block is driven by a material pushing driving part, a metal sheet which is hung on the upper edge of the bearing plate after being bent is pushed towards two sides, the metal sheet slides to the material guide plate, and further slides to the lower discharging position along the material guide plate under the action of gravity, so that the discharging process is completed.

Furthermore, the two groups of material guide plates are respectively positioned at two ends of the bearing plate, the buses of the material guide plates are space curves, the lowest points of the two material guide plates are converged to one position, and the material shifting block can move to the right end after moving to the left end of the bearing plate, so that the material shifting can be completed and moved to the right end, and then the material shifting can be performed to the left end, so that the efficiency is improved alternately.

The scheme of the invention has the following beneficial effects:

the metal sheet bending and press-fitting equipment provided by the invention is provided with the shaping mechanism, the quantitative feeding mechanism, the cutting mechanism, the bending mechanism, the guide plate related mechanism and the like, each mechanism is reasonable in design and compact in connection and matching, and can finish the shaping, quantitative feeding, cutting, bending and discharging processes of metal sheets in sequence, so that the processed metal sheets can meet the welding and assembling requirements of stators, the control is realized in a full-automatic mode, the processing efficiency and quality are effectively improved, and the production cost is reduced.

Other advantages of the present invention will be described in detail in the detailed description that follows.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a shaping mechanism and a quantitative feeding mechanism of the present invention;

FIG. 3 is a schematic view of the quantitative feeding mechanism, the cutting mechanism and the bending mechanism of the present invention;

FIG. 4 is a detailed view of the cutting mechanism and bending mechanism of the present invention;

fig. 5 is a schematic view of a swaging groove of the present invention.

[ description of reference ]

1-a shaping mechanism; 11-a material guide block; 12-shaping blocks; 13-a material guiding pulley; 14-a shaping pulley; 2-a quantitative feeding mechanism; 21-quantitative guide rail; 22-mounting a limiting block; 23-moving the clamping block; 24-fixing the clamping block; 25-a first hold-down cylinder; 26-a second hold-down cylinder; 27-a compression block; 28-a feed motor; 29-pulley set; 210-a lead screw structure; 3-a cutting mechanism; 31-a material guide block; 32-a cutting station; 33-a mounting frame; 34-a cutting cylinder; 35-cutting the connecting block; 36-cutting the mounting block; 37-a buffer spring; 38-a cutting blade; 4-a bending mechanism; 41-a carrier plate; 42-bending the cylinder; 43-a mounting seat; 44-a lifting rail; 45-bending the block; 46-middle block; 47-a guide bar; 48-pressing a material groove; 5-a metal sheet; 61-a material guide plate; 62-a material shifting guide rod; 63-material stirring block.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a locked connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides a sheet metal bending press-fitting device, which includes a shaping mechanism 1, a quantitative feeding mechanism 2, a cutting mechanism 3, and a bending mechanism 4. The shaping mechanism 1 straightens and shapes the metal sheet 5, the quantitative feeding mechanism 2 quantitatively conveys the metal sheet 5, the cutting mechanism 3 cuts the metal sheet 5 with equal length, and the bending mechanism 4 bends and presses each section of the metal sheet 5 with equal length.

Meanwhile, as shown in fig. 2, the shaping mechanism 1 includes a material guiding block 11 and a shaping block 12, two ends of the material guiding block 11 are respectively provided with a group of material guiding pulleys 13, and two shaping blocks 12 are provided, wherein one of the two shaping blocks is in a horizontal plane, and the other shaping block is in a vertical plane, so as to shape the metal sheet 5 from two directions. The surfaces of the two shaping blocks 12 are provided with a plurality of groups of shaping pulleys 14, the shaping pulleys 14 are all distributed on the same straight line, the rotating shaft of the pulley on one shaping block 12 is in the vertical direction, and the rotating shaft of the pulley on the other shaping block is in the horizontal direction. Each group of the guide pulleys 13 and the shaping pulleys 14 are oppositely arranged, and the metal sheet 5 passes through the guide pulleys and the shaping pulleys and is finally straightened and shaped, so that the subsequent bending processing and the like of the bending mechanism 4 are facilitated.

The quantitative feeding mechanism 2 is a power source for driving the metal sheet 5 to convey, and comprises a quantitative guide rail 21 arranged at the tail end of the shaping mechanism 1, two ends of the quantitative guide rail 21 are respectively and fixedly provided with an installation limiting block 22, the quantitative guide rail 21 is provided with a movable clamping block 23, the installation limiting block 22 at the rear end is provided with a fixed clamping block 24, the movable clamping block 23 is driven by a feeding driving part to quantitatively feed the metal sheet 5, the movable clamping block 23 and the fixed clamping block 24 are both provided with a channel for the metal sheet 5 to pass through, the movable clamping block 23 and the fixed clamping block 24 are respectively provided with a first pressing cylinder 25 and a second pressing cylinder 26, the end parts of piston rods of the first pressing cylinder 25 and the second pressing cylinder 26 are respectively provided with a pressing block 27, an opening is arranged above the channel, the pressing blocks 27 correspond to the opening, the metal sheet 5 is fixed to the movable and fixed

clamp blocks

23 and 24 by the first and second

pressing cylinders

25 and 26, respectively.

The feeding driving part comprises a feeding motor 28 arranged on one of the mounting limit blocks 22, the feeding motor 28 is connected with a screw rod structure 210 through a belt pulley group 29, the screw rod structure 210 drives the movable clamping block 23 to slide back and forth along the quantitative guide rail 21, and the stroke of the movable clamping block 23 is limited by the mounting limit block 22.

Meanwhile, as shown in fig. 3 and 4, the cutting mechanism 3 includes a material guide block 31 disposed behind the fixed clamping block 24, and a material guide chute is disposed on the material guide block 31 and aligned with the passage of the fixed clamping block 24, so that the metal sheet 5 fed by the quantitative feeding mechanism 2 enters the material guide chute. The rear end of the material guide block 31 is integrally provided with a cutting table 32, and the cutting table 32 is continuously provided with a material guide groove. The top of guide block 31 is provided with a mounting bracket 33, and the top of mounting bracket 33 is provided with a cutting cylinder 34, and the tailpiece of the piston rod portion of cutting cylinder 34 is provided with a cutting connecting block 35, and the bottom of cutting connecting block 35 is provided with a cutting installation piece 36, and cutting installation piece 36 slides and sets up in the spout of cutting connecting block 35, simultaneously and through buffer spring 37 elastic connection between the cutting connecting block 35, the bottom of cutting installation piece 36 is provided with a cutting blade 38. The cutting cylinder 34 drives the cutting connecting block 35 to move downwards, the cutting mounting block 36 and the cutting blade 38 are driven to cut off the metal sheet 5 downwards, the buffer spring 37 enables the cutting blade 38 to be in contact with the metal sheet 5 instantly under elastic buffer force, and damage to the cutting mechanism 3 due to frequent hard collision is prevented.

The bending mechanism 4 includes a supporting plate 41, the upper edge of the supporting plate 41 is flush with the guiding chute of the cutting table 32, and the supporting plate 41 is disposed perpendicularly and orthogonally with respect to the guiding chute. Above the carrier plate 41, a bending cylinder 42 is provided, which is also fixedly arranged on the top end of the mounting frame 33. The end of the piston rod of the bending cylinder 42 is provided with a mounting seat 43, the mounting seat 43 is slidably connected with the lifting guide rails 44 on two sides of the mounting frame 33, two bending blocks 45 are oppositely arranged on the mounting seat 43, the bending blocks 45 are distributed on two sides of the plane where the bearing plate 41 is located, and the top end of the bending blocks is fixedly connected with the mounting seat 43. Meanwhile, an intermediate block 46 is further arranged between the two bending blocks 45, the intermediate block 46 is aligned with the bearing plate 41, a vertical guide rod 47 is arranged on the mounting seat 43, the intermediate block 46 is movably arranged on the guide rod 47 through a guide hole and is limited at the bottommost end, and the intermediate block 46 synchronously moves downwards under the action of gravity when the mounting seat 43 moves downwards. The mounting base 43 drives the two bending blocks 45 and the middle block 46 to move downwards under the driving of the bending cylinder 42, the middle block 46 is limited under the action of the bearing plate 41 after contacting with the middle part of the metal sheet 5 to press the middle part of the metal sheet 5, the bending blocks 45 on the two sides contact with the two ends of the metal sheet 5 and then move downwards to press the two ends of the metal sheet 5 downwards, and the strip-shaped metal sheet 5 is gradually bent into a U shape.

In addition, as shown in fig. 5, the lower surfaces of the bending block 45 and the middle block 46 are provided with pressing grooves 48 corresponding to the metal sheet 5 and aligned with each other, and initially, the pressing grooves 48 of the bending block 45 and the middle block 46 are aligned with the material guide chute, so that the metal sheet 5 conveyed in a fixed amount enters the pressing grooves 48, the middle part of the metal sheet is supported by the bearing plate 41, the two ends of the metal sheet are limited by the pressing grooves 48 without tilting, and the metal sheet located in the pressing grooves 48 is exactly in a fixed length after the cutting mechanism 3 is cut off.

As a further improvement, in the embodiment, a material guiding plate 61 is further disposed at the end of the carrying plate 41, the material guiding plate 61 is disposed in an inclined manner, the upper edge of the highest point is aligned with the carrying plate 41, and the lowest point is a discharging position. One side of loading board 41 is provided with dials the material subassembly, dial the material subassembly including the activity setting dial material piece 63 on dialling material guide arm 62, dial the draw-in groove of material piece 63 and the block of the last reason of loading board 41 and stock guide 61, dial material piece 63 through dialling the material drive division, for example lead screw drive, will buckle the back and articulate the sheetmetal 5 on the last reason of loading board 41 to stir to both sides, make sheetmetal 5 slide to the stock guide 61 on, further slide to the discharging position of low point along stock guide 61 under the action of gravity, accomplish discharging process.

The two groups of material guide plates 61 are respectively located at two ends of the bearing plate 41, the generatrix of the material guide plates 61 is a space curve, the lowest points of the two material guide plates 61 are converged to one point, and the material shifting block 63 can move to the right end after moving to the left end of the bearing plate 41 to shift materials, and then shift materials to the left end after completing and moving to the right end, so that the efficiency is improved alternately.

A movable clamping block 23 of the quantitative feeding mechanism 2 is initially attached to an installation limiting block 22 close to the front end of the shaping mechanism 1, a first pressing cylinder 25 drives the pressing block to clamp and fix the metal sheet 5 on the movable clamping block 23, then a feeding driving part drives the movable clamping block 23 to slide along a quantitative guide rail 21 and be attached to the installation limiting block 22 at the other end, quantitative conveying of the metal sheet 5 is achieved, then the first pressing cylinder 25 is loosened, a second pressing cylinder 26 drives the pressing block to clamp and fix the metal sheet 5 on a fixed clamping block 24, the feeding driving part drives the movable clamping block 23 to reset for next quantitative conveying, the metal sheet 5 conveyed forwards in a quantitative mode enters a material guide groove of a material guide block 31, penetrates out of a material guide groove of a cutting table 32 and then enters a material pressing groove 48 and is supported by a bearing plate 41. The cutting cylinder 34 drives the cutting blade 38 to move downward to cut the metal sheet 5 on the cutting table 32, so that the metal sheet 5 passing through the cutting table 32, i.e., the metal sheet 5 located in the swaging groove 48, is a certain length, and the continuous metal sheet 5 on the cutting table 32 is next conveyed by the certain length distance backward, i.e., into the swaging groove 48, again by the certain feeding mechanism 2. The mounting base 43 drives the two bending blocks 45 and the middle block 46 to move downwards under the driving of the bending cylinder 42, the middle block 46 is limited under the action of the bearing plate 41 after contacting with the middle part of the metal sheet 5 to press the middle part of the metal sheet 5, the bending blocks 45 on the two sides contact with the two ends of the metal sheet 5 and then move downwards to press the two ends of the metal sheet 5 downwards, and the strip-shaped metal sheet 5 is gradually bent into a U shape and is hung on the upper edge of the bearing plate 41. The material stirring block 63 at one end of the bearing plate 41 moves towards the other end, the metal sheet 5 is stirred towards the material guide plate 61 at the other end, the metal sheet 5 slides downwards along the material guide plate 61 under the action of gravity after sliding to the material guide plate 61, and finally the discharging is finished according to a preset posture.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The metal sheet bending and press-mounting equipment is characterized by comprising a shaping mechanism, a quantitative feeding mechanism, a cutting mechanism and a bending mechanism, wherein the shaping mechanism straightens and shapes a metal sheet, the quantitative feeding mechanism quantitatively conveys the metal sheet, the cutting mechanism cuts off the metal sheet at equal length, and the bending mechanism bends and press-mounts each section of the metal sheet at equal length;

the bending mechanism comprises a bearing plate, a bending cylinder is arranged above the bearing plate, an installation seat is arranged at the end part of a piston rod of the bending cylinder, two bending blocks are oppositely arranged on the installation seat, the bending blocks are distributed on two sides of the plane of the bearing plate, the top end of the bending block is fixedly connected with the installation seat, a middle block is arranged between the two bending blocks, the middle block is aligned with the bearing plate, a vertical guide rod is arranged on the installation seat, and the middle block is movably arranged on the guide rod through a guide hole and is limited at the bottommost end; the material shifting device comprises a loading plate and a material shifting guide rod, wherein the loading plate is arranged on the upper edge of the highest point, the loading plate is arranged on the lower edge of the highest point, the material shifting guide rod is arranged on the lower edge of the loading plate, the material shifting guide rod is movably arranged on the material shifting guide rod, a clamping groove of the material shifting guide rod is clamped with the loading plate and the upper edge of the loading plate, and the material shifting block is driven by a material shifting driving part.

2. The sheet metal bending and press-fitting equipment according to claim 1, wherein the shaping mechanism comprises a material guide block and a shaping block, two ends of the material guide block are respectively provided with a group of material guide pulleys, the two shaping blocks are arranged, one of the two shaping blocks is in a horizontal plane, the other shaping block is in a vertical plane, the surfaces of the two shaping blocks are respectively provided with a plurality of groups of shaping pulleys, the shaping pulleys are all distributed on the same straight line, each group of the material guide pulleys and the shaping pulleys are respectively arranged oppositely, and the sheet metal penetrates through the shaping block and the shaping block.

3. The sheet metal bending and press-fitting equipment according to claim 2, wherein the quantitative feeding mechanism comprises a quantitative guide rail arranged at the tail end of the shaping mechanism, two ends of the quantitative guide rail are respectively and fixedly provided with an installation limiting block, the quantitative guide rail is provided with a movable clamping block, the installation limiting block at the rear end is provided with a fixed clamping block, the movable clamping block is driven by a feeding driving part, the movable clamping block and the fixed clamping block are respectively provided with a passage through which the sheet metal passes, the movable clamping block and the fixed clamping block are respectively provided with a first pressing cylinder and a second pressing cylinder, the end parts of piston rods of the first pressing cylinder and the second pressing cylinder are respectively provided with a pressing block, an opening is arranged above the passage, and the pressing blocks correspond to the openings.

4. The sheet metal bending and press-fitting equipment according to claim 3, wherein the feeding driving part comprises a feeding motor arranged on one of the mounting limiting blocks, the feeding motor is connected with a lead screw structure through a belt pulley group, and the lead screw structure drives the movable clamping block to slide.

5. The metal sheet bending and press-fitting equipment according to claim 3, wherein the cutting mechanism comprises a guide block arranged behind the clamping block, a guide chute is arranged on the guide block and is aligned with a channel of the clamping block, a cutting table is arranged at the rear end of the guide block, a mounting frame is arranged above the guide block, a cutting cylinder is arranged at the top end of the mounting frame, a cutting connecting block is arranged at the end part of a piston rod of the cutting cylinder, a cutting mounting block is arranged at the bottom end of the cutting connecting block, the cutting mounting block is elastically connected with the cutting connecting block through a buffer spring, the cutting mounting block is slidably arranged in a sliding groove of the cutting connecting block, and a cutting blade is arranged at the bottom end of the cutting mounting block.

6. The sheet metal bending press-fitting equipment according to claim 5, wherein the upper edge of the bearing plate is flush with the cutting table, the bending cylinder is fixedly arranged at the top end of the mounting frame, and the mounting seat is slidably connected with lifting guide rails on two sides of the mounting frame.

7. The metal sheet bending and press-fitting equipment according to claim 6, wherein the lower surfaces of the bending block and the middle block are provided with pressing grooves which correspond to the metal sheets and are aligned with each other.

8. The sheet metal bending and press-fitting equipment as claimed in claim 1, wherein two groups of the material guiding plates are arranged and respectively located at two ends of the bearing plate, the generatrix of the material guiding plates is a space curve, and the lowest points of the two material guiding plates are converged to one point.