CN217831532U

CN217831532U - Automatic calibration detects punching machine

Info

Publication number: CN217831532U
Application number: CN202221519179.8U
Authority: CN
Inventors: 周志成; 张潮; 陈强; 张�杰
Original assignee: Xiangyang Huafeng Jishun Auto Parts Co ltd
Current assignee: Xiangyang Huafeng Jishun Auto Parts Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-11-18
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses an automatic calibration detects punching machine relates to the stamping technology. Comprises a punch body; the punching machine body is internally provided with an upper die and a lower die, and the lower die mainly comprises a die cover, a die holder and a bent die body; the die cover is arranged on the die holder, and the bent die body is inserted in the die cover and the die holder; the bottom of the die cover is provided with an annular mounting groove, the side wall of the bent die body is provided with an annular positioning groove, and the annular mounting groove is communicated with the annular positioning groove; the top of the die holder is provided with a ring in a sliding manner, the ring is provided with a plurality of positioning claws in a rotating manner, the positioning claws extend into the annular mounting groove, and the positioning claws are movably connected with the annular mounting groove through a guide structure which enables the positioning claws to movably penetrate into the annular positioning grooves along with the rotation of the ring; a driving mechanism is arranged in the die holder, and the driving end of the driving mechanism is connected with the ring. The utility model is simple in operation convenient, it is fast to change, has solved the long problem of hard and time spent of automatic calibration detection punching machine when changing the lower mould.

Description

Automatic calibration detects punching machine

Technical Field

The utility model relates to a stamping technology, more specifically say, it relates to automatic calibration detects punching machine.

Background

In the production and manufacture of automobile parts, a punching machine is often required to punch steel plates. For some steel plates with a plurality of holes punched on the surfaces thereof, the punching holes can generate compression and tension stress when the steel plates are punched in the punching process, and the steel plates can slightly upwarp under the action of the stress. And with the increase of the number of punched holes on a single steel plate, the upwarping phenomenon is more obvious, and finally the deviation of the whole hole position is large. To solve this problem, designers have devised an automatic calibration and inspection press, which differs from a conventional press in that the lower die used is a bending die as shown in fig. 1. The problem of steel plate upwarping is avoided through the induction of the curved surface of the lower die to the tensile stress. This approach is very efficient.

When steel plates with different thicknesses are punched, the tensile stress and the compressive stress are different, so that the bending degree of the bending surface of the lower die is also different. For this reason, manufacturers need to equip corresponding lower dies for steel plates with different thicknesses so as to meet production requirements. However, the installation of lower mould is comparatively complicated, and the bolt of fixed lower mould is also more, and some bolts still are located the below of lower mould. Very hard when can lead to workman's change lower mould like this, required change also is longer in the time of, is unfavorable for production efficiency's improvement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to prior art, provide automatic calibration and detect punching machine, solved automatic calibration and detected the punching machine hard and long problem of time spent when changing the lower mould.

The utility model discloses an automatic calibration detection punching machine, which comprises a punching machine body; the stamping machine is characterized in that an upper die and a lower die are installed in the stamping machine body, and the lower die mainly comprises a die cover, a die holder and a bent die body; the die cover is arranged on the die holder, a mounting hole is formed in the die cover, a concave cavity is formed in the die holder, the bent die body is inserted in the mounting hole, and the bent die body is inserted in the concave cavity; the bottom of the die cover is provided with an annular mounting groove, the side wall of the bent die body is provided with an annular positioning groove, and the annular mounting groove is communicated with the annular positioning groove; the top of the die holder is provided with an annular sliding groove communicated with the annular mounting groove, an annular ring is slidably mounted in the annular sliding groove, a plurality of positioning claws are rotatably mounted on the annular ring, the positioning claws are positioned in the annular mounting groove, and the positioning claws are movably connected with the annular mounting groove through a guide structure which can enable the positioning claws to movably penetrate into the annular positioning grooves along with the rotation of the annular ring; and a driving mechanism is arranged in the die holder, and a driving end of the driving mechanism is connected with the ring.

The positioning claw is provided with an inserting part at one end far away from the end connected with the ring, and the thickness of the inserting part gradually increases from the tail end to the end close to the ring.

The guide structure comprises a guide shaft and a strip-shaped groove formed in the positioning claw; the guide shaft is fixedly arranged in the annular mounting groove, and the guide shaft is inserted in the strip-shaped groove.

The driving mechanism comprises a gear ring, a gear, a connecting shaft and a locking piece; the die holder is internally provided with an installation cavity, a threaded groove with one end penetrating through the die holder is formed in the die holder on one side of the installation cavity, and the threaded groove is communicated with the installation cavity through a connecting hole; the connecting shaft is rotatably connected with the connecting hole, one end of the connecting shaft extends into the thread groove, and the other end of the connecting shaft penetrates through the mounting cavity and is rotatably connected with the die holder; the gear is fixedly arranged on the connecting shaft in the mounting cavity, the gear ring is fixedly arranged below the ring, and the gear is meshed and connected with the gear ring; one end of the connecting shaft extending into the thread groove is provided with a hexagonal shaft hole; the locking piece is provided with a radial gradual groove, the locking piece is screwed in the thread groove, and the connecting shaft is inserted in the radial gradual groove.

And a hexagonal shaft head is arranged at one end of the locking piece, which is far away from the connecting shaft.

The screwing direction of the locking piece is consistent with the direction in which the ring drives the positioning claw to be inserted into the annular positioning groove.

And a gasket is arranged between the bent die body and the bottom of the concave cavity.

Advantageous effects

The utility model has the advantages that: the lower die is arranged in a split mode, and the positioning claw, the guide structure and the driving mechanism are arranged in the die cover and the die holder of the lower die and used for driving the positioning claw to lock the bent die body, so that the bent die body can be disassembled and assembled. Through such setting make when the steel sheet of different thickness of needs punching press, need not to dismantle the lower mould is whole, only need operate actuating mechanism's input, rotate the connecting axle promptly, can release the locking to crooked die body, change crooked die body can. The automatic calibration detection punching machine is simple and convenient to operate and high in replacement speed, and the problems that the automatic calibration detection punching machine is labor-consuming and long in time when a lower die is replaced are solved.

Drawings

Fig. 1 is a schematic cross-sectional view of a lower die of a conventional automatic calibration and detection punch;

fig. 2 is a schematic view of the front structure of the automatic calibration and detection punch of the present invention;

fig. 3 is a schematic top view of the lower mold of the present invention;

FIG. 4 is a schematic cross-sectional view taken at B-B in FIG. 3;

FIG. 5 is a schematic side view of the lower mold of the present invention;

FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5 with the positioning pawl released from the mold body;

fig. 7 is a schematic structural view of the positioning pawl of the present invention in a locked state with respect to the bending mold body.

Wherein: 1-punch body, 2-upper die, 3-lower die, 4-die cover, 5-die holder, 6-bending die body, 8-annular mounting groove, 9-annular positioning groove, 10-ring, 11-positioning claw, 12-inserting part, 13-guide shaft, 14-strip groove, 15-gear ring, 16-gear, 17-connecting shaft, 18-locking piece, 19-mounting cavity, 20-thread groove, 21-hexagonal shaft hole, 22-radial gradual groove, 23-gasket and 24-bending surface.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.

Referring to fig. 2-7, the automatic calibration and detection punching machine of the present invention includes a punching machine body 1. An upper die 2 and a lower die 3 are installed in the punching machine body 1, and the lower die 3 mainly comprises a die cover 4, a die holder 5 and a bent die body 6. The die cover 4 is mounted on the die holder 5. Specifically, a plurality of through holes are formed in the die cover 4 and the die holder 5, and corresponding screw holes are formed in the mounting plate of the lower die 3 of the punch body 1. When the lower die is installed, the lower die 3 can be installed only by inserting the bolts into the through holes and screwing the bolts into the screw holes.

A mounting hole is formed in the die cover 4, a concave cavity is formed in the die holder 5, the bent die body 6 is inserted in the mounting hole, and the bent die body 6 is inserted in the concave cavity. The aperture of the mounting hole and the aperture of the concave cavity are matched with the outer diameter of the bending die body 6.

Annular mounting groove 8 has been seted up to the bottom of mould lid 4, has seted up annular positioning groove 9 on the lateral wall of crooked die body 6, and annular mounting groove 8 is linked together with annular positioning groove 9. The top of die holder 5 is seted up the annular sliding tray that is linked together with annular mounting groove 8, and slidable mounting has ring 10 in the annular sliding tray, rotates on the ring 10 and installs a plurality of locating claws 11, and locating claw 11 is arranged in annular mounting groove 8, and locating claw 11 is through enabling locating claw 11 along with the rotation of ring 10 activity alternate guide structure and the 8 swing joint of annular mounting groove in annular positioning groove 9. When the positioning claw 11 is inserted into the annular positioning groove 9, the bending die body 6 can be locked, and the lower die 3 is installed; when the bending die body 6 needs to be replaced, only the positioning claw 11 needs to be moved out of the annular positioning groove 9, and the bending die body 6 is simple and convenient to disassemble and assemble.

In this embodiment, the guiding structure includes a guiding shaft 13 and a strip-shaped groove 14 formed in the positioning pawl 11. The guide shaft 13 is fixedly arranged in the annular mounting groove 8, and the guide shaft 13 is inserted in the strip-shaped groove 14. As shown in fig. 6 and 7, when the ring 10 rotates, the position of the end of the positioning pawl 11 will change, and under the guiding action of the guiding shaft 13 and the strip-shaped groove 14, the end thereof far away from the annular mounting groove 8 will move into the annular positioning groove 9 during the rotation process and finally plug into the annular positioning groove 9, thereby realizing the locking of the bending die body 6. Otherwise, the detent 11 will be removed from the annular detent 9.

Preferably, the end of the positioning claw 11, which is far away from the end connected with the ring 10, is provided with an insertion part 12, and the thickness of the insertion part 12 gradually increases from the tail end to the end close to the ring 10, so that when the positioning claw 11 is inserted into the annular positioning groove 9, the connection tightness between the positioning claw 11 and the annular positioning groove 9 is tighter along with the increase of the insertion part 12, which is beneficial to locking the bending die body 6.

A driving mechanism is arranged in the die holder 5, and the driving end of the driving mechanism is connected with the ring 10. The driving mechanism is used for driving the ring 10 to rotate.

Specifically, the drive mechanism includes a ring gear 15, a gear 16, a connecting shaft 17, and a lock member 18. An installation cavity 19 is formed in the die holder 5, a thread groove 20 with one end penetrating through the die holder 5 is formed in the die holder 5 on one side of the installation cavity 19, and the thread groove 20 is communicated with the installation cavity 19 through a connecting hole. The connecting shaft 17 is rotatably connected with the connecting hole, one end of the connecting shaft 17 extends into the thread groove 20, and the other end of the connecting shaft 17 penetrates through the mounting cavity 19 and is rotatably connected with the die holder 5. The gear 16 is fixedly mounted on a connecting shaft 17 in a mounting cavity 19, the gear ring 15 is fixedly mounted below the ring 10, and the gear 16 is in meshed connection with the gear ring 15. One end of the connecting shaft 17 extending into the thread groove 20 is provided with a hexagonal shaft hole 21. The ring 10 can be driven to rotate by rotating the connecting shaft 17 and driving the gear ring 15 through the gear 16.

The locking member 18 serves to close the threaded groove 20 and also to lock the connecting shaft 17 against rotation during use of the press. In order to achieve the above function, the locking member 18 of the present embodiment is formed with a radially tapered groove 22, the locking member 18 is screwed into the threaded groove 20, and the connecting shaft 17 is inserted into the radially tapered groove 22. Furthermore, the end of the locking member 18 remote from the connecting shaft 17 is provided with a hexagonal stub shaft to facilitate rotation of the locking member 18. The screwing direction of the locking piece 18 is consistent with the direction in which the ring 10 drives the positioning claw 11 to be inserted into the annular positioning groove 9, so that when the locking piece 18 locks the connecting shaft 17, if the locking piece 18 drives the connecting shaft 17 to rotate, the problem that the positioning claw 11 moves out of the annular positioning groove 9 can be effectively avoided.

Preferably, a gasket 23 is arranged between the bent die body 6 and the bottom of the cavity, so that the horizontal positions of the annular positioning groove 9 and the annular mounting groove 8 can be leveled conveniently.

The utility model discloses a theory of operation is: the die cover 4 and the die holder 5 are mounted on the punch body 1. When the bent die body 6 is mounted, the bent die body 6 is inserted into the cavity. The connecting shaft 17 is then screwed by a tool, such as a hexagonal screwdriver, and the rotation of the connecting shaft 17 drives the gear 16 to rotate, and the gear 16 drives the ring 10 to rotate through the gear ring 15. The positioning claws 11 on the ring 10 will move into the annular positioning grooves 9 under the guiding action of the guide shafts 13 and the strip-shaped grooves 14 and be inserted into the annular positioning grooves 9. And the screwing of the connecting shaft 17 is stopped after the connecting shaft 17 cannot be screwed. The locking element 18 is then screwed into the threaded groove 20 and, after the locking element 18 has also been unscrewed, the bending die body 6 is completely locked.

When the bending die body 6 is disassembled, the locking piece 18 is firstly unscrewed, then the connecting shaft 17 is reversely screwed, the positioning claw 11 is moved out of the annular positioning groove 9, the locking of the bending die body 6 can be released, and the bending die body 6 can be taken out.

What has been described above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make a plurality of modifications and improvements without departing from the structure of the present invention, and these will not affect the effect of the present invention and the practicability of the patent.

Claims

1. An automatic calibration and detection punch comprises a punch body (1); the stamping machine is characterized in that an upper die (2) and a lower die (3) are installed in the stamping machine body (1), and the lower die (3) mainly comprises a die cover (4), a die holder (5) and a bent die body (6); the die cover (4) is installed on the die holder (5), a mounting hole is formed in the die cover (4), a concave cavity is formed in the die holder (5), the bent die body (6) is inserted in the mounting hole, and the bent die body (6) is inserted in the concave cavity; an annular mounting groove (8) is formed in the bottom of the die cover (4), an annular positioning groove (9) is formed in the side wall of the bent die body (6), and the annular mounting groove (8) is communicated with the annular positioning groove (9); the die holder is characterized in that an annular sliding groove communicated with an annular mounting groove (8) is formed in the top of the die holder (5), an annular ring (10) is slidably mounted in the annular sliding groove, a plurality of positioning claws (11) are rotatably mounted on the annular ring (10), the positioning claws (11) are positioned in the annular mounting groove (8), and the positioning claws (11) are movably connected with the annular mounting groove (8) through guide structures which enable the positioning claws (11) to movably penetrate into annular positioning grooves (9) along with the rotation of the annular ring (10); a driving mechanism is installed in the die holder (5), and the driving end of the driving mechanism is connected with the ring (10).

2. The automatic calibration detection press according to claim 1, characterized in that the positioning pawl (11) is provided with a plug-in portion (12) at an end thereof remote from the connection with the ring (10), the thickness of the plug-in portion (12) gradually increasing from the end thereof toward the end near the ring (10).

3. The automatic calibration detection punch according to claim 1, characterised in that the guide structure comprises a guide shaft (13) and a strip-shaped groove (14) opening in the positioning pawl (11); the guide shaft (13) is fixedly arranged in the annular mounting groove (8), and the guide shaft (13) is inserted in the strip-shaped groove (14).

4. The automatic calibration detection press according to claim 1, characterized in that said drive mechanism comprises a toothed ring (15), a toothed wheel (16), a connecting shaft (17) and a locking element (18); an installation cavity (19) is formed in the die holder (5), a thread groove (20) with one end penetrating through the die holder (5) is formed in the die holder (5) on one side of the installation cavity (19), and the thread groove (20) is communicated with the installation cavity (19) through a connecting hole; the connecting shaft (17) is rotatably connected with the connecting hole, one end of the connecting shaft (17) extends into the threaded groove (20), and the other end of the connecting shaft (17) penetrates through the mounting cavity (19) and is rotatably connected with the die holder (5); the gear (16) is fixedly arranged on a connecting shaft (17) in the mounting cavity (19), the gear ring (15) is fixedly arranged below the ring (10), and the gear (16) is meshed and connected with the gear ring (15); one end of the connecting shaft (17) extending into the thread groove (20) is provided with a hexagonal shaft hole (21); a radial gradual change groove (22) is formed in the locking piece (18), the locking piece (18) is screwed in the thread groove (20), and the connecting shaft (17) is inserted in the radial gradual change groove (22).

5. The automatic calibration detection press according to claim 4, characterized in that the end of the locking element (18) remote from the connecting shaft (17) is provided with a hexagonal stub shaft.

6. The automatic calibration detection punch according to claim 4, characterized in that the tightening direction of the locking element (18) coincides with the direction in which the ring (10) carries the positioning pawl (11) into the annular positioning slot (9).

7. An automatic calibration and detection press according to claim 1, characterized in that a gasket (23) is provided between the curved die body (6) and the bottom of the cavity.