CN106694639B - Metal sheet decompressor - Google Patents

Abstract

This patent relates to the field of mechanical processing, and specifically discloses a stamping device for sheet metal parts, including a hydraulic table, a frame, a seal and a machine table connected sequentially from top to bottom, and an upper mold is detachably installed on the lower surface of the hydraulic table , the machine table is horizontally provided with a rotating shaft connected to the machine table, and several different types of lower molds are installed in the circumferential direction of the rotating shaft, and the lower molds are all perpendicular to the rotating shaft; it also includes a hollow limit rod, which passes through the lower The mold and the machine are detachably connected, the center of the lower mold is provided with a first through hole, and the limit rod is provided with a second through hole connecting the limit rod and the first through hole; the seal is fixedly installed on the first through hole. The lower end of the hole; the limit rod is provided with a water inlet hole and a water outlet hole, and a laser generator is arranged at the water inlet hole, and a transparent glass steel pipe is sleeved in the limit rod and the first through hole, and the outer wall of the glass steel pipe is in line with the limit Both the rod and the inner wall of the first through hole are in contact. The device in this scheme can quickly replace the lower mold and improve the processing efficiency.

Description

Sheet metal stamping device

technical field

The invention belongs to the field of mechanical processing, and in particular relates to a bending device for metal plate parts.

Background technique

Sheet metal parts have the characteristics of light weight, high strength, low cost, and good mass production performance, and have been widely used in electronic appliances, communications, automobile industry, medical equipment and other fields. Especially in computer cases, mobile phones, and MP3 players, plate-like metal is an essential component. As the application of sheet metal parts becomes more and more extensive, the demand for sheet metal parts is also increasing, and the requirements for processing accuracy are also getting higher and higher.

In the process of sheet metal parts processing, the bending machine mold is mainly placed on the punching machine, and then the metal sheet is placed on the bending mold to bend the metal sheet. During the bending process, the gap between the upper and lower dies The force is applied to the sheet metal to cause plastic deformation of the sheet metal. During processing, different upper and lower dies should be selected according to the shape of the sheet metal. When the sheet metal is more complicated, the shape of the bend is also relatively Complicated, at this time, it is necessary to frequently replace the upper mold and the lower mold, and the replacement process is time-consuming and laborious; and during the processing, the workpiece will generate heat after plastic deformation. At this time, let go of the workpiece, and the workpiece The rebound performance is the strongest, which will reduce the accuracy of the finished sheet metal parts.

Contents of the invention

The present invention intends to provide a sheet metal stamping device to realize rapid replacement of a lower die and improve processing efficiency.

In order to achieve the above object, the basic solution of the present invention is as follows: a stamping device for sheet metal parts, including a hydraulic platform, a frame and a machine platform sequentially connected from top to bottom, the hydraulic platform is slidably connected to the upper end of the frame, and the machine The lower end of the frame is fixedly connected to the machine table, and the hydraulic table is installed directly above the machine table. The upper mold is detachably installed on the lower surface of the hydraulic table, and the rotating shaft connected to the machine table is horizontally arranged on the machine table. , and several different types of lower molds are installed in the upper direction of the rotating shaft, the lower molds are all perpendicular to the rotating shaft, and the upper mold is set towards the rotating shaft; it also includes a hollow limit rod, which can pass through the lower mold and the machine table. The connection is disassembled, and the limit rod is set horizontally; the center of the lower mold is provided with a first through hole, and the limit rod is provided with a second through hole connecting the limit rod and the first through hole, and also includes an annular A sealing member, the sealing member is fixedly installed at the lower end of the first through hole; one end of the limit rod is provided with a water inlet hole, the other end of the limit rod is provided with a water outlet hole, and a laser generator is provided at the water inlet hole, Both the limit rod and the first through hole are sleeved with a transparent glass steel pipe, and the outer wall of the glass steel pipe is in contact with the limit rod and the inner wall of the first through hole, and the upper end of the first through hole is provided with a transparent Glass steel.

The principle of the basic scheme: before operation, start the hydraulic table, the hydraulic table moves up, the upper mold on the lower surface of the hydraulic table is separated from the lower mold, and then the limit rod on the machine table is disassembled, and the limit rod is removed; then the rotating shaft is rotated, The rotating shaft drives the lower mold on the rotating shaft to rotate. At this time, select the required lower mold, and then rotate the corresponding lower mold to the right below the upper mold, so that the lower mold is opposite to the upper mold, and then pass the limit rod through the lower mold to limit The two ends of the positioning bar are connected to the machine table, at this time, the first through hole and the second through hole are opposite, and the seal at the first through hole is in contact with the second through hole, so that the first through hole and the second through hole are sealed. ; Then pass water to the water inlet of the limit rod, at this moment, water is also contained in the first through hole, and the laser generator is turned on, at this time, the glass steel pipe in the limit rod reflects the light, and the light is totally reflected in the water at the same time, The light propagates from the limit rod to the second through hole, and the glass steel pipe in the first through hole continues to reflect the light, and the reflected light gathers on the glass steel plate at the upper end of the first through hole to form a light spot; then The workpiece to be processed is placed on the lower mold so that the center of the bending line of the workpiece overlaps with the light spot in the first through hole, and then the hydraulic table is started, the hydraulic table moves down, the upper mold and the lower mold overlap, and the workpiece is processed Bending, at this time, the flowing water cools the workpiece; then the hydraulic table moves up to take out the workpiece, and then continues the processing of the next workpiece.

The advantages of the basic scheme: 1. There are several different types of lower molds installed on the upper direction of the rotating shaft, and the rotating shaft can rotate relative to the machine. During the rotation process, the lower mold can be driven to rotate, and different lower molds are selected to be opposite to the upper mold to avoid damage. The lower mold can be replaced by disassembling the lower mold. The replacement process is very simple and fast, which can reduce the replacement time and improve the processing efficiency; 2. When the limit rod passes through the lower mold, the lower mold is opposite to the upper mold, so that it can Effectively limit the lower mold, prevent the shaft from shaking during processing, and enhance the stability of the device; 3. The two ends of the limit rod are respectively equipped with water inlet and water outlet holes, and at the same time, the limit rod is provided with the first channel. The second through hole connected to the hole, the heat generated by the workpiece and the lower mold is taken away by the water during the processing, which facilitates the rapid cooling and shaping of the workpiece, reduces the rebound performance of the workpiece, and improves the processing accuracy; 4. Both the limit rod and the first through hole are equipped with transparent glass steel pipes, which can effectively reflect the light generated by the laser generator and avoid the rapid weakening of the light; the glass steel plate set on the upper end of the first through hole can make the light The light is reflected in the first through hole, and the light is reflected on the glass steel plate, and the light is gathered on the glass steel plate, and the light can pass through the workpiece with holes, thereby facilitating the positioning of the workpiece with holes.

The whole device realizes the conversion of the lower mold through fast rotation, eliminating the need for continuous disassembly and assembly of the mold, effectively improving the processing efficiency, and the water in the limit rod can quickly take away the lower mold and the workpiece during the processing The generated heat quickly cools and shapes the workpiece, reduces the rebound performance of the workpiece, and improves processing accuracy.

Preferred Solution 1: As a preferred solution of the basic solution, a fixing clip is further included, the fixing clip is fixedly installed at the lower end of the machine table, and the upper surface of the fixing clip is in contact with the rotating shaft. Through the above settings, when the rotating shaft is turned, the fixing clip is in contact with the rotating shaft, allowing the rotating shaft to rotate smoothly. When the upper mold moves down to press the workpiece, the rotating shaft is stressed, and the force will be transmitted to the fixing clip at this time, and then Support the rotating shaft to make the device more stable during processing.

The preferred solution 2: As the preferred solution of the preferred solution 1, a limiting groove is provided at both ends of the limiting rod, and a limiting block is provided on the machine table to offset the limiting groove. Through the above settings, when the limit block on the machine table is embedded in the limit groove, the limit rod can be completely installed on the machine table, and at the same time, the first through hole is connected with the second through hole, and there is no need to turn the limit rod at this time Aligning the first through hole with the second through hole simplifies the operation steps and enables rapid adjustment.

The third preferred solution: As a preferred solution of the second preferred solution, the two ends of the limit rod are snap-connected with the machine table. Through the above arrangement, the limit rod is snap-connected with the machine table, which facilitates the quick disassembly and quick connection of the limit rod and the machine table, and can effectively improve the processing efficiency.

Preferred Solution 4: As the preferred solution of Preferred Option 3, it also includes a ring-shaped handle and a buckle for fixing the handle, one end of the rotating shaft passes through the machine table and is fixedly connected with the handle, and the buckle is fixedly installed on the machine table, and The buckle is opposite to the position of the handle. Through the above settings, when turning the shaft, the handle can be turned, and then the handle can be positioned with the buckle to prevent the shaft from continuing to rotate, and it is convenient to connect the limit rod through the lower mold and the machine. More convenient.

Description of drawings

Fig. 1 is the structural schematic diagram of the embodiment of the sheet metal stamping device of the present invention;

Fig. 2 is the left view of Fig. 1;

FIG. 3 is a partial cross-sectional view at A in FIG. 1 .

Detailed ways

The present invention will be described in further detail below by means of specific embodiments:

The reference signs in the drawings of the description include: hydraulic table 10, upper mold 101, frame 20, rotating shaft 30, lower mold 301, first through hole 311, fixing clip 302, handle 303, buckle 304 for fixing the handle, limit Position bar 40, laser generator 401, water inlet hole 402, water outlet hole 403, second through hole 404, machine platform 50, limit block 501, glass steel pipe 60, glass steel plate 601, sealing member 70.

The embodiment is basically shown in the accompanying drawings 1, 2 and 3: a stamping device for sheet metal parts, including a hydraulic table 10, a frame 20, a machine table 50, and a hollow spacer that are sequentially connected from top to bottom. Rod 40 and retaining clip 302. The upper end of the frame 20 is slidingly connected to the hydraulic table 10, the lower end of the frame 20 is fixedly connected to the machine table 50, and the hydraulic table 10 is installed directly above the machine table 50, and the upper mold is detachably installed on the lower surface of the hydraulic table 10 101 , the lower mold 301 is perpendicular to the lower surface of the hydraulic table 10 .

The machine table 50 is horizontally provided with a rotating shaft 30 that is rotatably connected to the machine table 50, and four different types of lower molds 301 are installed on the circumferential direction of the rotating shaft 30. The lower molds 301 are all perpendicular to the rotating shaft 30, and the upper mold 101 and the lower mold 301 is relatively arranged; the fixed clip 302 is fixedly installed on the lower end of the machine table 50, and the upper surface of the fixed clip 302 is in contact with the outer surface of the rotating shaft 30; the lower mold 301 can be driven to rotate during the rotation process, and different lower molds 301 and upper molds can be selected. The molds 101 are opposite to each other, and the replacement of the lower mold 301 can be realized by avoiding disassembly and assembly of the lower mold 301, and the replacement process is very simple and fast.

The left end of the stop bar 40 is snap-connected with one side of the machine table 50, and the right end of the stop bar 40 passes through the lower mold 301 and is snap-connected with the other side of the machine table 50. The stop bar 40 is parallel to the rotating shaft 30 and is in the On the same vertical plane, a first through hole 311 is provided at the center of the lower mold 301, and a second through hole 404 is provided in the middle of the limit rod 40, and the first through hole 311 coincides with the second through hole 404, and the second through hole 404 is overlapped. The lower end of a through hole 311 is provided with an annular seal 70 made of rubber material; the limit rod 40 can limit the lower mold 301, and when the limit rod 40 is passed into water, the water can enter the first pass. In the hole 311, water is used to cool the workpiece and the lower mold 301 during processing.

The left end of the limit rod 40 is provided with a water inlet 402, the right end of the limit rod 40 is provided with a water outlet 403, and the water inlet 402 at the left end of the limit rod 40 is provided with a laser generator 401; A limit slot is provided on the top, and a limit block 501 that is offset against the limit slot is provided on the machine table 50 to limit the installation direction of the limit rod 40 .

Both the stop bar 40 and the first through hole 311 are sleeved with a transparent glass steel pipe 60, and the outer wall of the glass steel tube 60 is in contact with the stop bar 40 and the inner wall of the first through hole 311, and the first through hole 311 The upper end is provided with a transparent glass steel plate 601, and the glass steel plate 601 is fixedly connected with the lower mold 301, which can effectively reflect the light generated by the laser generator 401 and avoid the rapid weakening of light; it is also conducive to the formation of light on the glass steel plate 601 The light spot is used to position the workpiece to be processed.

In addition, the handle 303 is circular, and the left end of the rotating shaft 30 passes through the machine table 50 and is fixedly connected to the handle 303; Buckle the handle 303 to locate, prevent the rotating shaft 30 from continuing to rotate, and facilitate the installation of the limit rod 40 .

In this embodiment, before the operation, the hydraulic table 10 is started, the hydraulic table 10 moves upward, the upper mold 101 on the lower surface of the hydraulic table 10 is separated from the lower mold 301, and then the two ends of the stop bar 40 are disassembled from the machine table 50 , take off the limit rod 40; loosen the buckle on the handle 303, turn the handle 303, the rotating handle 303 drives the rotating shaft 30 to rotate, and the rotating shaft 30 drives the lower mold 301 on the rotating shaft 30 to rotate, at this time, select the lower mold 301 as required, Then the corresponding lower mold 301 is rotated directly below the upper mold 101, so that the lower mold 301 and the upper mold 101 are relatively located on the same vertical axis, and then the handle 303 is fixed with a buckle, and then the rotating shaft 30 is fixed, and the rotating shaft 30 no longer rotates; then Pass the limit rod 40 through the left side of the machine platform 50, the lower mold 301 and the right side of the machine platform 50 in sequence, connect both ends of the limit rod 40 to the machine platform 50, and now the limit block 501 is embedded in the limit In the groove, make the first through hole 311 and the second through hole 404 opposite at the same time, the sealing member 70 at the first through hole 311 is in contact with the second through hole 404, so that the first through hole 311 and the second through hole 404 are sealed; Then turn on the laser generator 401 in the limit rod 40, and now the glass steel pipe 60 in the limit rod 40 reflects the light, and the light is totally reflected in the water at the same time, and the light propagates from the limit rod 40 to the second through hole 404 , the glass steel pipe 60 in the first through hole 311 continues to reflect the light, and the reflected light gathers on the glass steel plate 601 at the upper end of the first through hole 311 to form a light spot that limits the position of the workpiece; and then The workpiece to be processed is placed on the lower mold 301, so that the center of the bending line of the workpiece overlaps with the light spot in the first through hole 311, and then the hydraulic table 10 is started, and the hydraulic table 10 moves down, and the upper mold 101 and the lower mold 301 Overlapping, the workpiece is bent, and the flowing water cools the workpiece at this time; then the hydraulic table 10 moves up, takes out the workpiece, and then continues the processing of the next workpiece.

What has been described above is only an embodiment of the present invention, and common knowledge such as specific structures and/or characteristics known in the scheme will not be described too much here. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (5)

1. A stamping device for sheet metal parts, comprising a hydraulic platform, a frame and a machine platform connected sequentially from top to bottom, the hydraulic platform is slidably connected to the upper end of the frame, and the lower end of the frame is fixedly connected to the machine platform, and The hydraulic table is installed directly above the machine table, and it is characterized in that an upper mold is detachably installed on the lower surface of the hydraulic table, and a rotating shaft connected to the machine table is horizontally arranged on the machine table, and the rotating shaft is circumferentially Several different types of lower molds are installed, and the upper mold is set towards the rotating shaft, and the axis of the lower mold is perpendicular to the axis of the rotating shaft; it also includes a hollow limit rod, which passes through the lower mold and is detachably connected to the machine platform , and the limit rod is set horizontally; the center of the lower mold is provided with a first through hole, and the limit rod is provided with a second through hole connecting the limit rod and the first through hole, and also includes an annular seal , the sealing member is fixedly installed at the lower end of the first through hole; one end of the limit rod is provided with a water inlet hole, the other end of the limit rod is provided with a water outlet hole, and a laser generator is provided at the water inlet hole. Both the limit rod and the first through hole are sleeved with transparent glass steel pipes, and the outer wall of the glass steel pipe is in contact with the limit rod and the inner wall of the first through hole, and the upper end of the first through hole is provided with a transparent glass steel plate . 2 . The stamping device for sheet metal parts according to claim 1 , further comprising a fixing clip, the fixing clip is fixedly installed at the lower end of the machine table, and the upper surface of the fixing clip is in contact with the rotating shaft. 3 . 3 . The sheet metal stamping device according to claim 2 , wherein a limiting groove is provided at both ends of the limiting rod, and a limiting block is provided on the machine table to offset the limiting groove. 4 . 4 . The sheet metal stamping device according to claim 3 , wherein both ends of the limiting rod are snap-connected to the machine table. 5 . 5. The stamping device for sheet metal parts according to claim 4, further comprising a circular handle and a buckle for fixing the handle, one end of the rotating shaft passes through the machine table and is fixedly connected with the handle, and the buckle is fixed Installed on the machine table, and the buckle is opposite to the position of the handle.