CN216175859U

CN216175859U - Sheet metal forming and connecting process device

Info

Publication number: CN216175859U
Application number: CN202122305189.3U
Authority: CN
Inventors: 丁志鹏; 吴加胜; 戴聪; 彭博
Original assignee: Hunan Yuanheng Technology Co ltd
Current assignee: Hunan Yuanheng Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-05
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to the technical field of sheet metal machining and forming, in particular to a sheet metal forming and connecting process device. Comprises an upper die and a lower die; mounting grooves are formed in the bottom surface of the upper die and the top surface of the lower die; the mounting groove of the upper die is internally provided with upper die convex teeth at intervals; lower die convex teeth meshed with the upper die convex teeth are arranged in the mounting groove of the lower die at intervals; a sink groove is arranged in the mounting groove; a pressing plate frame capable of lifting up and down is arranged in the sinking groove. The utility model has the beneficial effects that: this device can place the face edge of sheet metal component between last mould and lower mould, and when going up mould and lower mould interlock each other, go up the mutual interlock of mould dogtooth and lower mould dogtooth, can be on a parallel with the spiral shell tooth fabrication hole of sheet metal component face at the edge formation of sheet metal component, and the spiral shell tooth fabrication hole can be used for the mounting screw to make two sheet metal components of mutually perpendicular can pass through screw interconnect.

Description

Sheet metal forming and connecting process device

Technical Field

The utility model relates to the technical field of sheet metal machining and forming, in particular to a sheet metal forming and connecting process device.

Background

Fig. 1 is a schematic diagram of a volute structure of a centrifugal fan, wherein the fan volute comprises side plates on two sides and a shell plate which is curled into an archimedean line shape in the middle. Because it is the dysmorphism piece, its production, installation and maintenance are all comparatively complicated, most producers are direct to weld it into whole, the installation is comparatively simple and convenient like this, but because the welding has welding stress and heat altered shape, consequently, the spiral case material of making through this kind of mode is thicker, make material cost higher, the spiral case part is the dysmorphism piece in addition, the welding degree of difficulty is big, low in production efficiency, especially it is very difficult when later stage maintenance is dismantled, pass through bolted connection through welded connection spare on the spiral case when still partly installs, this kind of mode is comparatively convenient to later stage maintenance dismantlement, but when the installation preparation is comparatively complicated again, consuming time power, low in production efficiency.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the two existing mutually-perpendicular special-shaped sheet metal parts can only be connected in a welding mode under the condition of no overlapped surface, the welding difficulty is high, the production efficiency is low, and the later-stage overhauling and disassembling are particularly difficult.

In order to solve the problems, the technical scheme adopted by the utility model is as follows: a sheet metal forming and connecting process device comprises an upper die and a lower die; mounting grooves are formed in the bottom surface of the upper die and the top surface of the lower die; the mounting groove of the upper die is internally provided with upper die convex teeth at intervals; lower die convex teeth meshed with the upper die convex teeth are arranged in the mounting groove of the lower die at intervals; a sink groove is arranged in the mounting groove; and a pressing plate frame capable of lifting up and down is arranged in the sinking groove.

The utility model has the beneficial effects that: this device can place the face edge of sheet metal component between last mould and lower mould, and when going up mould and lower mould interlock each other, go up the mutual interlock of mould dogtooth and lower mould dogtooth, can be on a parallel with the spiral shell tooth fabrication hole of sheet metal component face at the edge formation of sheet metal component, and the spiral shell tooth fabrication hole can be used for the mounting screw to make two sheet metal components of mutually perpendicular can pass through screw interconnect.

As a further improvement of the utility model, the technical problems to be solved are as follows: the fit between the screw tooth process hole and the screw is not high, so that the screw is not firmly connected.

In order to solve the technical problems, the utility model further adopts the following improved technical scheme: the top surfaces of the upper die convex teeth and the lower die convex teeth are arc surfaces.

The beneficial effects produced by the improvement are as follows: the inner hole of the spiral tooth process hole is kept cylindrical, so that the screw fixation is more convenient, and the fixation firmness is improved.

As a further improvement of the utility model, the technical problems to be solved are as follows: the connection between the screw tooth fabrication hole and the screw is not firm enough and is easy to loosen.

In order to solve the technical problems, the utility model further adopts the following improved technical scheme: and anti-skid grains or threads are arranged on the top surfaces of the upper die convex teeth and the lower die convex teeth.

The beneficial effects produced by the improvement are as follows: so that the inner wall of the formed screw tooth process hole generates anti-skid lines or forms threads, and the connection firmness of the screw and the screw tooth process hole is further improved.

As a further improvement of the utility model, the technical problems to be solved are as follows: after the sheet metal component forms the spiral tooth fabrication hole through this device punching press, the sheet metal component blocks with the die teeth of mould easily, can not be quick break away from the die teeth, leads to the separation difficulty.

In order to solve the technical problems, the utility model further adopts the following improved technical scheme: a shaft hole is formed in the sinking groove; the pressing plate frame is connected with a sliding shaft; the sliding shaft is arranged in the shaft hole; the sliding shaft is provided with a compression spring which enables the pressing plate frame to extend out; and a limiting piece is arranged at the tail end of the sliding shaft.

The beneficial effects produced by the improvement are as follows: when the upper die and the lower die are used for stamping the sheet metal part to form the spiral tooth technical hole, and the upper die and the lower die are separated, the sheet metal part is extruded outwards by the pressing plate frames on the upper die and the lower die under the action of the compression spring, so that the spiral tooth technical hole is automatically separated from the corresponding die teeth quickly, and the separation speed is improved.

As a further improvement of the utility model, the technical problems to be solved are as follows: the unable dismantlement of die tooth is changed, leads to one of them die tooth to damage the back, can only replace this mould totally, so improves to the maintenance cost.

In order to solve the technical problems, the utility model further adopts the following improved technical scheme: clamping grooves for clamping the upper die convex teeth or the lower die convex teeth are formed in the two sides of the mounting groove; the side edge of the upper die or the lower die is provided with a positioning hole; the positioning holes are communicated with the corresponding clamping grooves.

The beneficial effects produced by the improvement are as follows: the die teeth and the die are of a separated structure, the two sides of the die teeth are clamped into the corresponding clamping grooves, and then the die teeth are extruded and fixed through the set screws arranged in the positioning holes, so that the die teeth can be fixed, and the die teeth can be detached and replaced.

Drawings

Fig. 1 is a schematic structural view of a volute apparatus.

Fig. 2 is a schematic sectional structure diagram of the device.

Fig. 3 is a schematic view of the structure of the upper die teeth.

Fig. 4 is a schematic view of a lower die tooth structure.

FIG. 5 is a schematic view of the tooth slot structure.

Fig. 6 is a schematic structural view of the pressing frame.

FIG. 7 is a schematic view of a thread forming process hole.

Fig. 8 is a schematic diagram of a sheet metal forming structure processed by the device.

Fig. 9 is a schematic structural view of two sheet metal parts connected together through a spiral-tooth process hole.

The character label in the figure is represented as 1, a first sheet metal part; 2. a screw tooth fabrication hole; 3. a second sheet metal part; 4. perforating; 5. a screw; 6. an upper die; 7. mounting grooves; 8. convex teeth of an upper die; 9. arc convex teeth; 10. a lower die; 12. lower die convex teeth; 13. a slide shaft; 14. pressing a plate frame; 15. a compression spring; 16. sinking a groove; 17. a limiting member; 18. a card slot; 19. positioning holes; 21. a first blank holder; 22. and (5) second pressing.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Example 1:

as shown in fig. 2-6, a sheet metal forming and connecting process device comprises an upper die 6 and a lower die 10; mounting grooves 7 are formed in the bottom surface of the upper die 6 and the top surface of the lower die 10; upper die convex teeth 8 are arranged in the mounting groove 7 of the upper die 6 at intervals; lower die convex teeth 12 meshed with the upper die convex teeth 8 are arranged in the mounting groove 7 of the lower die 10 at intervals; a sinking groove 16 is arranged in the mounting groove 7; a pressing plate frame 14 capable of lifting up and down is arranged in the sinking groove 16. The upper die 6 and the lower die 10 are arranged on a machine tool, and the upper die and the lower die are pressed to process the spiral technological hole of the sheet metal part; the mounting groove 7 is in a rectangular blind hole shape; a sinking groove 16 is also arranged at the port of the mounting groove 7, and the sinking groove 16 is a rectangle matched with the mounting groove 7 in shape; the pressing plate frame 14 is a rectangular frame, and the thickness of the pressing plate frame 14 is not higher than the depth of the sinking groove 16; when the upper and lower dies are in a separated state, the pressing plate frame 14 is in an extended state; when the upper and lower dies are in a pressing state, the pressing plate frame 14 is folded in the sinking groove 16.

Example 2:

as shown in fig. 3-4, further optimization is performed on the basis of the above-mentioned embodiments: the top surfaces of the upper die convex teeth 8 and the lower die convex teeth 12 are arc surfaces. The lower end of the upper die convex tooth 8 is in a vertical state, and the top end of the upper die convex tooth is in a structure of an arc convex surface 9; the lower die convex teeth 12 are of circular arc surface structures, and the top surfaces of the upper die convex teeth 8 and the lower die convex teeth 12 are meshed to form a complete circular structure.

Example 3:

as shown in fig. 3-4 and 7, the optimization is further performed on the basis of the above embodiment: the top surfaces of the upper die convex teeth 8 and the lower die convex teeth 12 are provided with anti-skid grains or threads. Go up mould convex tooth 8 and lower mould convex tooth 12 and suppress the sheet metal component and form in the thread fabrication hole, can be so that form anti-skidding line or directly form the screw thread face on the inner wall in thread fabrication hole, be convenient for cooperate with screw 5, improve screw 5's fixed fastness.

Example 4:

as shown in fig. 2, further optimization is performed on the basis of the above embodiment: a shaft hole is formed in the sinking groove 16; the pressing plate frame 14 is connected with a sliding shaft 13; the sliding shaft 13 is arranged in the shaft hole; the sliding shaft 13 is provided with a compression spring 15 which enables the pressing plate frame 14 to extend out; the tail end of the slide shaft 13 is provided with a limiting piece 17. Shaft holes are formed in four corners of the sinking groove 16, sliding shafts 13 are arranged in four corners of the pressing plate frame 14, and each sliding shaft 13 is arranged in the corresponding shaft hole; the sliding shaft 13 is sleeved with a compression spring 15, and the limiting piece 17 can be a nut or a hoop.

Example 5:

as shown in fig. 5-6, further optimization is performed on the basis of the above-mentioned embodiments: clamping grooves 18 for clamping the upper die convex teeth 8 or the lower die convex teeth 12 are formed in the two sides of the mounting groove 7; a positioning hole 19 is formed in the side edge of the upper die 6 or the lower die 10; the positioning holes 19 are communicated with the corresponding clamping grooves 18. The upper die convex teeth 8 or the lower die convex teeth 12 are independent parts and can be detachably arranged in the clamping grooves 18; a long screw can be screwed into the positioning hole 19, and the positioning hole 19 can be a threaded hole; the top end of the long screw props against the side wall of the corresponding upper die convex tooth 8 or lower die convex tooth 12, so that the upper die convex tooth 8 or lower die convex tooth 12 can be prevented from loosening and falling from the clamping groove 18.

The working principle of the utility model is as follows:

one end of a sheet metal part plate is placed into a die, an upper die 6 and a lower die 10 are mutually meshed and pressed, so that an upper die convex tooth 8 and a lower die convex tooth 12 are mutually meshed, a spiral tooth process hole as shown in figures 7-9 is formed in a steel plate, a mounting hole is drilled in the other plate, the sheet metal part with the spiral tooth process hole is perpendicular to the other plate, a screw 5 penetrates through the mounting hole and is inserted into the corresponding spiral tooth process hole to be screwed, and the two plates can be mutually perpendicular and detachably connected.

When the device is used for assembling the fan volute, mounting holes are drilled on the side plates on the two sides of the fan volute in the shape of an Archimedes line; and (3) completely arranging spiral tooth process holes corresponding to the mounting holes on the two sides of the shell plate, then curling the shell plate into an Archimedes line shape, and passing screws through the mounting holes to be connected and fixed with the corresponding spiral tooth process holes, so that the detachable fixed assembly of the fan volute can be completed.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. A sheet metal forming and connecting process device is characterized in that: comprises an upper die (6) and a lower die (10); mounting grooves (7) are formed in the bottom surface of the upper die (6) and the top surface of the lower die (10); upper die convex teeth (8) are arranged in the mounting grooves (7) of the upper die (6) at intervals; lower die convex teeth (12) meshed with the upper die convex teeth (8) are arranged in the mounting grooves (7) of the lower die (10) at intervals; a sink groove (16) is arranged in the mounting groove (7); a pressing plate frame (14) capable of lifting up and down is arranged in the sinking groove (16).

2. The sheet metal forming and connecting process device according to claim 1, wherein the sheet metal forming and connecting process device comprises the following steps: the top surfaces of the upper die convex teeth (8) and the lower die convex teeth (12) are arc surfaces.

3. The sheet metal forming and connecting process device according to claim 1, wherein the sheet metal forming and connecting process device comprises the following steps: the top surfaces of the upper die convex teeth (8) and the lower die convex teeth (12) are provided with anti-skid lines or threads.

4. The sheet metal forming and connecting process device according to claim 1, wherein the sheet metal forming and connecting process device comprises the following steps: a shaft hole is formed in the sinking groove (16); the pressing plate frame (14) is connected with a sliding shaft (13); the sliding shaft (13) is arranged in the shaft hole; the sliding shaft (13) is provided with a compression spring (15) which enables the pressing plate frame (14) to extend out; the tail end of the sliding shaft (13) is provided with a limiting piece (17).

5. The sheet metal forming and connecting process device according to claim 1, wherein the sheet metal forming and connecting process device comprises the following steps: clamping grooves (18) for clamping the upper die convex teeth (8) or the lower die convex teeth (12) are formed in the two sides of the mounting groove (7); a positioning hole (19) is formed in the side edge of the upper die (6) or the lower die (10); the positioning holes (19) are communicated with the corresponding clamping grooves (18).