A deep drawing device with adaptive local deformation adjustment and adjustment method

Abstract

The present invention relates to the technical field of metal parts processing, and specifically to a drawing device and an adjustment method with adaptive local deformation adjustment, wherein deformation adjustment processing is performed on the drawing of a workpiece by setting a drawing adjustment mechanism in a drawing bottom die and using the auxiliary structure in cooperation, and when the workpiece is drawn by using a stretching top die in cooperation with the drawing bottom die, the stretching top die presses the workpiece into the drawing bottom die, and before that, the annular top body in the matching loading slot body is adjusted and moved into the drawing bottom die according to actual processing requirements, and after the workpiece is drawn and pressed in, it is assisted in drawing by the set auxiliary structure, and the load-bearing ring body is lifted by a lifting control rod, so that the regulating auxiliary pressure plate on the load-bearing ring body assists in adjusting the bottom side position of the workpiece for drawing; the present invention provides an auxiliary mechanism according to actual drawing requirements to meet its processing requirements and improve the overall drawing processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of metal component processing, and in particular to a drawing device and an adjustment method for adaptive local deformation adjustment. Background Art

[0002] Sheet metal deep drawing is a stamping process that uses a die to transform a flat sheet into an open hollow part. The deep drawing process can produce thin-walled parts in cylindrical, stepped, spherical, conical, parabolic, box-shaped and other irregular shapes. If combined with other stamping processes, more complex parts can also be produced. Therefore, the deep drawing process is widely used in industrial production such as automobiles, aircraft, tractors, electrical appliances, instruments, electronics, and light industry.

[0003] The existing patent document with announcement number CN109940080A discloses a self-resistance electric heating plate deep drawing forming device and method, which includes a machine tool base, a die, a limit module, an insulating punch, a high-frequency low-voltage pulse power supply and an insulating pressure ring; the die includes a top cover, a wall tube and a bottom cover, wherein the wall tube is an insulating material, the top cover and the bottom cover are conductive materials, and the bottom cover can slide in the wall tube; the wall tube is fixed to the machine tool base by an insulating pin, and a compression spring is arranged between the bottom cover and the machine tool base, one end of the compression spring is fixed to the machine tool base, and the other end is connected to the bottom cover through a bakelite insulation layer; the limit The positioning module is arranged between the wall tube of the die, including a hydraulic lifting column and a positioning retaining ring, and the positioning retaining ring is connected to the machine tool base through the hydraulic lifting column; the high-frequency low-voltage pulse power supply and the top cover, the plate, the bottom cover and the wire form a current loop, and the top cover and the bottom cover are respectively connected to the positive and negative poles of the high-frequency low-voltage power supply; the insulating pressure ring and the top cover are symmetrically distributed along the upper and lower sides of the plate, and the insulating punch and the bottom cover are symmetrically distributed along the upper and lower sides of the plate, and the insulating punch is connected to a hydraulic main cylinder, which drives the insulating punch to move up and down; the central axes of the insulating punch, the insulating pressure ring, the bottom cover, the top cover and the insulating wall tube coincide.

[0004] During the drawing process of plate parts and tubular products, the upper die and the bottom die are used for the drawing process. When the upper die contacts the plate parts for extrusion and drawing, the side parts have been deformed accordingly and need to be processed later. Some parts need to be processed into diamond corners, which are more difficult to control. The existing drawing die devices lack matching auxiliary mechanisms to meet the processing requirements and need to be improved and optimized.

[0005] To this end, the present invention proposes a drawing device and an adjustment method for adaptive local deformation adjustment to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a drawing device and an adjustment method for adaptive local deformation adjustment to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drawing device with adaptive local deformation adjustment, comprising a drawing device body, a drawing bottom die, a drawing top die, a drawing control mechanism and an auxiliary structure; a drawing bottom die is arranged in the drawing device body, a drawing top die is arranged directly above the drawing bottom die, and a drawing control mechanism and an auxiliary structure are arranged in the drawing bottom die.

[0008] Preferably, the drawing control mechanism includes a connecting disc body, a rotation control motor, a maintenance window, a placement slot, a cover, a handle, a connecting shaft, a bearing turntable, a loading slot body, a positioning slot body, a connecting threaded groove, a loading ring body, an annular top body, an auxiliary ramp, a through slot body, a positioning card plate, a mounting hole and a stabilizing component; the connecting disc body in the drawing control mechanism is fixedly arranged on the stretching device body, and a rotation control motor is fixedly arranged on the connecting disc body, an inner cavity is arranged in the connecting disc body, and the inner cavity is connected to the drawing bottom die; a maintenance window is arranged on the connecting disc body, a placement slot is arranged in the maintenance window, the maintenance window is connected to the inner cavity in the connecting disc body, the placement slot is adapted to be snap-connected with the cover, and a handle is fixedly arranged on the cover , and the sealing cover is fixed in the placement slot by screws, the rotation control motor is connected to the connecting shaft, the connecting shaft extends into the inner cavity, and the end of the connecting shaft is fixedly connected to the carrying turntable, the carrying turntable is arranged in the inner cavity of the connecting disk body, and the carrying turntable is equidistantly provided with loading slots, and the upper end slot edges of the loading slots are symmetrically provided with positioning slots, and a connecting thread groove is provided in the positioning slot, and an annular top body is fixedly provided at one end of the loading ring body, and an auxiliary slope is provided on the inner side of the annular top body port, and a through slot body is symmetrically provided in the annular top body, and a positioning card plate is symmetrically fixedly provided on the side wall of the loading ring body, and a mounting hole is provided in the positioning card plate, and the positioning card plate is fixed by a stable component.

[0009] Preferably, four loading slots are equidistantly arranged on the connecting disc body, and the loading slots correspond to the setting positions of the drawing bottom die, and the notches of the loading slots are arranged in a circular shape.

[0010] Preferably, the positioning clamping plate and the positioning slot body are arranged at corresponding positions and have the same number of groups, and the two are adapted and snap-connected; the loading ring body and the loading slot body are adapted and plugged in, and one loading ring body is arranged in one loading slot body.

[0011] Preferably, the annular top bodies and the loading ring bodies are arranged in the same number of groups, and the annular top bodies and the stretching top molds are arranged at corresponding positions.

[0012] Preferably, the stabilizing component includes an annular thread groove, a stabilizing thread column, an internal thread connecting ring, an auxiliary spring pin, a spherical surface, a locking cap body, a locking pressure body, and an auxiliary pressure surface; the annular thread groove in the stabilizing component is arranged on the positioning card plate, and the central axes of the annular thread groove and the mounting hole are the same straight line, a stabilizing thread column is inserted in the mounting hole, the stabilizing thread column is threadedly connected to the connecting thread groove, the stabilizing thread column is threadedly connected to the internal thread connecting ring, an auxiliary spring pin is movably arranged in the internal thread connecting ring, one end of the auxiliary spring pin extends to the inner side wall of the internal thread connecting ring, and the other end of the auxiliary spring pin extends to the outside of the internal thread connecting ring, and the end is arranged as a spherical surface, the annular thread groove is threadedly connected to the locking cap body, the inner side wall of the locking cap body is fixedly provided with a locking pressure body, and the inner side of the bottom end of the locking pressure body is provided with an auxiliary pressure surface.

[0013] Preferably, the auxiliary pressure surface and the locking pressure body are set in the same number of groups, and the auxiliary pressure surface is set at an angle and is set in a ring shape; the locking pressure body and the auxiliary spring pin are set in corresponding positions; the locking cap body and the stabilizing threaded column, the internal threaded connecting ring, and the annular threaded groove are set in corresponding positions and are set in the same number of groups.

[0014] Preferably, the auxiliary structure includes a lifting control rod, a bearing ring body, a fixed cylinder, a movable column, an auxiliary spring, a fixed block, a rotating connecting plate, and an auxiliary regulating pressure plate; the lifting control rod in the auxiliary structure is symmetrically fixedly arranged at the bottom end of the inner cavity of the drawing bottom die, and the lifting control rod is fixedly connected to the bearing ring body, the bearing ring body is equidistantly provided with fixed cylinders, the fixed cylinder is movably plugged with movable columns, the bottom end of the movable column is fixedly provided with an auxiliary spring, the other end of the auxiliary spring is fixedly provided in the fixed cylinder, the top end of the movable column is fixedly provided with a fixed block, the fixed block is provided with a rotating connecting plate, and one end of the rotating connecting plate is fixedly provided with an auxiliary regulating pressure plate.

[0015] Preferably, the carrying ring body corresponds to the setting position of the loading slot body on the carrying turntable, and the regulating auxiliary pressure plate corresponds to the setting position of the through slot body in the annular top body.

[0016] A method for adjusting a deep drawing device with adaptive local deformation adjustment, the method comprising:

[0017] When the workpiece is deep-drawn by using the stretching top die in conjunction with the drawing bottom die, the stretching top die presses the workpiece into the drawing bottom die. Prior to this, the annular top body in the corresponding loading trough is adjusted and moved into the drawing bottom die according to actual processing requirements. After the workpiece is deep-drawn and pressed in, it is assisted in deep drawing by the set auxiliary structure. The load-bearing ring body is lifted by the lifting control rod, so that the regulating auxiliary pressure plate on the load-bearing ring body can assist in adjusting the bottom side position of the workpiece for deep drawing.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention mainly performs deformation adjustment processing on the workpiece during deep drawing by setting a drawing control mechanism and cooperating with an auxiliary structure in the drawing bottom die. When the workpiece is deep drawn by using a stretching top die in cooperation with the drawing bottom die, the stretching top die presses the workpiece into the drawing bottom die. Prior to this, the annular top body in the matching loading slot body is adjusted and moved into the drawing bottom die according to actual processing requirements. After the workpiece is deep drawn and pressed in, it is assisted in deep drawing by the set auxiliary structure. The load-bearing ring body is lifted by a lifting control rod, so that the control auxiliary pressure plate on the load-bearing ring body performs auxiliary adjustment and deep drawing on the bottom side position of the workpiece. In this process, the loading ring body in the drawing control mechanism is locked by a stabilizing component to ensure its installation stability, thereby having a positive effect on the stability of its deep drawing process. The present invention provides an auxiliary mechanism according to actual deep drawing requirements to meet its processing requirements and improve the overall deep drawing process efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the right side of the structural connection of the deep drawing device of the present invention;

[0021] Figure 2 It is a schematic diagram of the left side of the structural connection of the drawing device of the present invention;

[0022] Figure 3 It is a top view of the connection between the drawing bottom die, the drawing regulating mechanism and the auxiliary structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structural connection at center A;

[0024] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structural connection at B in the middle;

[0025] Figure 6 It is a front side schematic diagram of the connection between the drawing bottom die, the drawing regulating mechanism and the auxiliary structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the connection structure between the loading tank body and the loading ring body in the drawing control mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structural connection at C in the middle;

[0028] Fig. 9 This is a schematic diagram of the connection between the loading ring and the stabilizing component structure of the present invention;

[0029] Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of the structural connection at D in the middle;

[0030] Fig.11 It is a schematic diagram of the connection structure between the locking cap body and the internal thread connecting ring in the stabilizing assembly of the present invention;

[0031] Fig.12 This is a schematic diagram of the connection of the auxiliary structure of the present invention;

[0032] Fig.13 For the present invention Fig.12 The enlarged schematic diagram of the structural connection at E in the middle;

[0033] Fig.14 This is a schematic diagram of the connection of the auxiliary pressure plate structure of the present invention.

[0034] In the figure: 1, stretching device body; 2, deep drawing bottom die; 3, stretching top die; 401, connecting plate body; 402, rotation control motor; 403, maintenance window; 404, placement slot; 405, cover; 406, handle; 407, connecting shaft; 408, bearing turntable; 409, loading slot body; 410, positioning slot body; 411, connecting thread groove; 412, loading ring body; 413, annular top body; 414, auxiliary slope; 415, through the slot body; 416, positioning card plate; 41 7. Mounting hole; 41801. Annular thread groove; 41802. Stabilizing thread column; 41803. Internal thread connecting ring; 41804. Auxiliary spring pin; 41805. Spherical surface; 41806. Locking cap body; 41807. Locking pressure body; 41808. Auxiliary pressure surface; 501. Lifting control rod; 502. Load-bearing ring body; 503. Fixed cylinder; 504. Movable column; 505. Auxiliary spring; 506. Fixed block; 507. Rotating connecting plate; 508. Adjusting auxiliary pressure plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1-Figure 14 A drawing device with adaptive local deformation adjustment comprises a drawing device body 1, a drawing bottom die 2, a drawing top die 3, a drawing regulation mechanism and an auxiliary structure; a drawing bottom die 2 is arranged in the drawing device body 1, a drawing top die 3 is arranged directly above the drawing bottom die 2, and a drawing regulation mechanism and an auxiliary structure are arranged in the drawing bottom die 2.

[0037] The present invention mainly performs deformation adjustment processing on the workpiece during deep drawing by setting a drawing control mechanism and cooperating with an auxiliary structure in the drawing bottom die 2. When the workpiece is deep drawn by using the stretching top die 3 in cooperation with the drawing bottom die 2, the stretching top die 3 presses the workpiece into the drawing bottom die 2. Prior to this, the annular top body 413 in the corresponding loading slot 409 is adjusted and moved into the drawing bottom die 2 according to actual processing requirements. After the workpiece is deep drawn and pressed in, it is assisted in deep drawing by the set auxiliary structure. The supporting ring body 502 is pushed up by the lifting control rod 501, so that the regulating auxiliary pressure plate 508 on the supporting ring body 502 assists in adjusting the bottom side position of the workpiece during deep drawing. In this process, the loading ring body 412 in the drawing control mechanism is locked by the set stabilizing component to ensure its installation stability, which has a positive effect on the stability of its deep drawing process.

[0038] Example 2: Based on Example 1, please refer to Figure 2-Figure 11The drawing control mechanism includes a connecting disc 401, a rotation control motor 402, a maintenance window 403, a placement slot 404, a cover 405, a handle 406, a connecting shaft 407, a bearing turntable 408, a loading slot 409, a positioning slot 410, a connecting threaded groove 411, a loading ring 412, an annular top 413, an auxiliary slope 414, a through slot 415, a positioning card plate 416, a mounting hole 417 and a stabilizing component; the connecting disc 401 in the drawing control mechanism is fixedly arranged on the stretching device body 1, and the connecting disc 401 is fixedly provided with a rotation control motor 402, and the connecting disc 40 1 is provided with an inner cavity, and the inner cavity is connected with the drawing bottom die 2; a maintenance window 403 is provided on the connecting disc body 401, and a placement slot 404 is provided in the maintenance window 403, and the maintenance window 403 is connected with the inner cavity in the connecting disc body 401, and the placement slot 404 is adapted to be engaged with a cover 405, and a handle 406 is fixedly provided on the cover 405, and the cover 405 is fixed in the placement slot 404 by screws, and the rotation control motor 402 is connected with a connecting shaft 407, and the connecting shaft 407 extends into the inner cavity, and the end of the connecting shaft 407 is fixedly connected with a carrying turntable 408, The carrying turntable 408 is arranged in the inner cavity of the connecting disk body 401, and the carrying turntable 408 is equidistantly provided with loading slots 409, and the upper end slot side of the loading slot 409 is symmetrically provided with positioning slots 410, and the positioning slots 410 are provided with connecting thread grooves 411, and one end of the loading ring body 412 is fixedly provided with an annular top body 413, and the inner side of the port of the annular top body 413 is provided with an auxiliary slope 414, and the annular top body 413 is symmetrically provided with through slots 415, and the side wall of the loading ring body 412 is symmetrically fixedly provided with positioning clamps 416, and the positioning clamps 416 are provided with mounting holes 417, and the positioning clamps 416 pass through the positioning clamps It is fixed by a set stable component; here, four loading slots 409 are equidistantly arranged on the connecting disc body 401, and the loading slots 409 correspond to the setting position of the drawing bottom die 2, and the notch of the loading slots 409 is set to be circular; the positioning clamping plate 416 here corresponds to the setting position of the positioning slot 410, and the setting number of groups is the same, and the two are adapted to be connected; the loading ring body 412 is adapted to be plugged in with the loading slot body 409, and a loading ring body 412 is set in a loading slot body 409; the annular top body 413 here has the same number of groups as the loading ring body 412, and the annular top body 413 corresponds to the setting position of the stretching top die 3.

[0039] In this embodiment, the stretching top die 3 presses the workpiece into the drawing bottom die 2. Prior to this, the annular top body 413 in the matching loading slot 409 is adjusted and moved into the drawing bottom die 2 according to actual processing requirements, that is, the rotation control motor 402 drives the carrying turntable 408 to rotate through the connecting shaft 407, and then moves the matching annular top body 413 into the drawing bottom die 2. Here, the auxiliary slopes 414 on the inner sides of the four annular top bodies 413 arranged on the carrying turntable 408 have different inclination angles and sizes, that is, they are adjusted according to the size of the chamfer of the bottom end side of the workpiece to be drawn. The auxiliary slopes 414 on the annular top bodies 413 cooperate with the stretching top die 3 for drawing, so as to correct the deformation position in the process of drawing the workpiece in time; the multiple groups of annular top bodies 413 arranged on the carrying turntable 408 have a deformation correction and regulation function, and have better working flexibility.

[0040] A maintenance window 403 is provided on the connecting disc body 401 to facilitate the subsequent replacement of the loading ring body 412. The loading ring body 412 is firmly connected by a stabilizing component so that the loading ring body 412 is detachable.

[0041] The stabilizing component here includes an annular thread groove 41801, a stabilizing thread column 41802, an internal thread connecting ring 41803, an auxiliary spring pin 41804, a spherical surface 41805, a locking cap body 41806, a locking pressure body 41807, and an auxiliary pressure surface 41808; the annular thread groove 41801 in the stabilizing component is arranged on the positioning card plate 416, and the central axes of the annular thread groove 41801 and the mounting hole 417 are the same straight line, a stabilizing thread column 41802 is inserted in the mounting hole 417, the stabilizing thread column 41802 is threadedly connected to the connecting thread groove 411, the stabilizing thread column 41802 is threadedly connected to the internal thread connecting ring 41803, an auxiliary spring pin 41804 is movably arranged in the internal thread connecting ring 41803, and one end of the auxiliary spring pin 41804 extends to the internal thread connecting ring On the inner wall of 41803, the other end of the auxiliary spring pin 41804 extends to the outside of the internal threaded connecting ring 41803, and the end is set to a spherical surface 41805, the annular thread groove 41801 is threadedly connected to the locking cap body 41806, and the inner wall of the locking cap body 41806 is fixedly provided with a locking pressure body 41807, and the inner side of the bottom end of the locking pressure body 41807 is provided with an auxiliary pressure surface 41808; the auxiliary pressure surface 41808 here is set in the same number of groups as the locking pressure body 41807, and the auxiliary pressure surface 41808 is inclined and set in a ring shape; the locking pressure body 41807 and the auxiliary spring pin 41804 are set in corresponding positions; the locking cap body 41806 and the stabilizing threaded column 41802, the internal threaded connecting ring 41803, and the annular thread groove 41801 are set in corresponding positions and have the same number of groups.

[0042] The function of the stabilizing component in this embodiment is to ensure the installation stability of the loading ring body 412 on the basis of realizing the detachability of the loading ring body 412. When the positioning card plate 416 is stuck in the positioning groove body 410, the stabilizing threaded column 41802 is inserted into the threaded connection, and after tightening, the internal threaded connecting ring 41803 is threadedly connected with the stabilizing threaded column 41802, and the internal threaded connecting ring 41803 is tightened, and then the locking cap body 41806 is threadedly connected with the annular threaded groove 41801 on the positioning card plate 416, and the locking cap body 41806 is tightened. In this process, the locking cap body 41806 is arranged on the locking cap body 41806. The locking pressure body 41807 on the inner wall of 806 squeezes the auxiliary spring pin 41804 in the internal threaded connecting ring 41803. The purpose of setting the spherical surface 41805 on the protruding end of the auxiliary spring pin 41804 and setting the auxiliary pressure surface 41808 on one side of the locking pressure body 41807 is to facilitate the squeezing of the auxiliary spring pin 41804, so that the other end of the auxiliary spring pin 41804 squeezes and locks the stabilizing threaded column 41802, thereby making the positioning clamping plate 416 firmly stuck in the positioning groove body 410, further improving the installation stability of the loading ring body 412.

[0043] Here, while ensuring the stability of the loading ring body 412, the annular top body 413 also has good position stability, that is, the working stability of the deep drawing cooperation between the annular top body 413 and the stretching top die 3 is improved.

[0044] Example 3: Based on Example 2, please refer to Figure 12-14 The auxiliary structure here includes a lifting control rod 501, a bearing ring body 502, a fixed cylinder 503, a movable column 504, an auxiliary spring 505, a fixed block 506, a rotating connecting plate 507, and an auxiliary regulating pressing plate 508; the lifting control rod 501 in the auxiliary structure is symmetrically fixedly arranged at the bottom end of the inner cavity of the drawing bottom die 2, and the lifting control rod 501 is fixedly connected to the bearing ring body 502, and the bearing ring body 502 is equidistantly arranged with a fixed cylinder 503, and the fixed cylinder 503 is movably inserted with a movable column 504, and the movable column 50 4 is fixedly provided with an auxiliary spring 505 at the bottom end, the other end of the auxiliary spring 505 is fixedly provided in the fixed cylinder 503, the top end of the movable column 504 is fixedly provided with a fixed block 506, a rotating connecting plate 507 is provided on the fixed block 506, and an auxiliary regulating pressure plate 508 is fixedly provided at one end of the rotating connecting plate 507; the bearing ring body 502 here corresponds to the setting position of the loading slot body 409 on the bearing turntable 408, and the auxiliary regulating pressure plate 508 corresponds to the setting position of the through slot body 415 in the annular top body 413.

[0045] In this embodiment, an auxiliary structure is arranged at the bottom end of the inner cavity of the drawing bottom die 2. It is mainly for the purpose that when the stretching top die 3 draws and presses the workpiece into the bottom end of the drawing bottom die 2, the workpiece is squeezed and contacted with the auxiliary slope 414 on the annular top body 413. At the same time, the lifting control rod 501 is arranged to push up the supporting ring body 502, and finally drive the regulating auxiliary pressure plate 508 to pass through the through groove body 415 in the annular top body 413, and finally contact the workpiece to deal with the problem of local deformation. The fixed cylinder 503, the movable column 504 and the auxiliary spring 505 are practically coordinated to form a corresponding flexible structure. On the basis of dealing with local deformation, it has a corresponding protective effect on the workpiece, ensures the body quality of the product during the drawing process, and has a positive effect on improving the overall processing quality.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drawing device with adaptive local deformation adjustment, characterized in that: The invention comprises a stretching device body (1), a drawing bottom die (2), a stretching top die (3), a drawing regulating mechanism and an auxiliary structure; the stretching device body (1) is provided with a drawing bottom die (2), a stretching top die (3) is provided directly above the drawing bottom die (2), and the drawing bottom die (2) is provided with a drawing regulating mechanism and an auxiliary structure; The connecting disc body (401) in the drawing control mechanism is fixedly arranged on the stretching device body (1), and a rotation control motor (402) is fixedly arranged on the connecting disc body (401); an inner cavity is arranged in the connecting disc body (401), and the inner cavity is connected to the drawing bottom die (2); a maintenance window (403) is arranged on the connecting disc body (401), and a card placement slot (404) is arranged in the maintenance window (403), and the maintenance window (403) and the connecting disc body (401) are connected to each other. 01), the placement slot (404) is adapted to be snap-fitted with the cover (405), a handle (406) is fixedly provided on the cover (405), and the cover (405) is fixed in the placement slot (404) by screws, the rotation control motor (402) is connected to the connecting shaft (407), the connecting shaft (407) extends into the inner cavity, and the end of the connecting shaft (407) is fixedly connected to the bearing turntable (408), the bearing The loading turntable (408) is arranged in the inner cavity of the connecting disk body (401), and the loading turntable (408) is equidistantly provided with loading slots (409), and a loading ring (412) is arranged in one of the loading slots (409), and the loading ring (412) is adapted to be plugged in with the loading slot (409), and positioning slots (410) are symmetrically arranged on the sides of the notches at the upper ends of the loading slots (409), and the positioning slots (410) are provided with connecting thread grooves (412). 1), an annular top body (413) is fixedly provided at one end of the loading ring body (412), an auxiliary slope (414) is provided on the inner side of the port of the annular top body (413), a through groove (415) is symmetrically provided in the annular top body (413), a positioning card plate (416) is symmetrically fixedly provided on the side wall of the loading ring body (412), a mounting hole (417) is provided in the positioning card plate (416), and the positioning card plate (416) is fixed by a provided stabilizing component; The lifting control rod (501) in the auxiliary structure is symmetrically fixedly arranged at the bottom end of the inner cavity of the drawing bottom die (2), and the lifting control rod (501) is fixedly connected to the bearing ring body (502), and the bearing ring body (502) is equidistantly arranged with a fixed cylinder (503), and a movable column (504) is movably inserted in the fixed cylinder (503), and an auxiliary spring (505) is fixedly arranged at the bottom end of the movable column (504), and the other end of the auxiliary spring (505) is fixedly arranged in the fixed cylinder (503), and a fixed block (506) is fixedly arranged at the top end of the movable column (504), and a rotating connecting plate (507) is arranged on the fixed block (506), and a regulating auxiliary pressure plate (508) is fixedly arranged at one end of the rotating connecting plate (507).

2. The drawing device with adaptive local deformation adjustment according to claim 1, characterized in that: Four loading slots (409) are arranged at equal intervals on the connecting disc body (401), and the loading slots (409) correspond to the positions of the drawing bottom die (2). The notches of the loading slots (409) are arranged in a circular shape.

3. The drawing device with adaptive local deformation adjustment according to claim 1, characterized in that: The positioning clamping plate (416) and the positioning slot body (410) are arranged at corresponding positions and have the same number of sets, and the two are adapted to be clamped.

4. The drawing device with adaptive local deformation adjustment according to claim 1, characterized in that: The annular top bodies (413) and the loading ring bodies (412) are arranged in the same number of groups, and the annular top bodies (413) and the stretching top mold (3) are arranged at corresponding positions.

5. The drawing device with adaptive local deformation adjustment according to claim 1, characterized in that: The annular thread groove (41801) in the stabilizing component is arranged on the positioning card plate (416), and the central axes of the annular thread groove (41801) and the mounting hole (417) are the same straight line. A stabilizing thread column (41802) is inserted in the mounting hole (417), and the stabilizing thread column (41802) is threadedly connected to the connecting thread groove (411). The stabilizing thread column (41802) is threadedly connected to the internal thread connecting ring (41803), and an auxiliary spring pin (41804) is movably arranged in the internal thread connecting ring (41803). ), one end of the auxiliary spring pin (41804) extends to the inner wall of the internal threaded connecting ring (41803), the other end of the auxiliary spring pin (41804) extends to the outside of the internal threaded connecting ring (41803), and the end is arranged as a spherical surface (41805), the annular thread groove (41801) is threadedly connected with the locking cap body (41806), the inner wall of the locking cap body (41806) is fixedly provided with a locking pressure body (41807), and the inner side of the bottom end of the locking pressure body (41807) is provided with an auxiliary pressure surface (41808).

6. The drawing device with adaptive local deformation adjustment according to claim 5, characterized in that: The auxiliary pressure surface (41808) and the locking pressure body (41807) are arranged in the same number of groups, and the auxiliary pressure surface (41808) is inclined and arranged in a ring shape; the locking pressure body (41807) and the auxiliary spring pin (41804) are arranged in corresponding positions; the locking cap body (41806) and the stabilizing threaded column (41802), the internal threaded connecting ring (41803), and the annular threaded groove (41801) are arranged in corresponding positions and in the same number of groups.

7. The drawing device with adaptive local deformation adjustment according to claim 1, characterized in that: The bearing ring body (502) corresponds to the setting position of the loading slot body (409) on the bearing turntable (408), and the regulating auxiliary pressing plate (508) corresponds to the setting position of the through slot body (415) in the annular top body (413).

8. A method for adjusting a drawing device with adaptive local deformation adjustment as claimed in any one of claims 1 to 7, characterized in that: The adjustment method is: When the workpiece is deep-drawn by using the stretching top die (3) in conjunction with the drawing bottom die (2), the stretching top die (3) presses the workpiece into the drawing bottom die (2). Prior to this, the annular top body (413) in the matching loading slot (409) is adjusted and moved into the drawing bottom die (2) according to actual processing requirements. After the workpiece is deep-drawn and pressed in, it is assisted in deep drawing by the provided auxiliary structure. The supporting ring body (502) is lifted up by the lifting control rod (501), so that the regulating auxiliary pressure plate (508) on the supporting ring body (502) assists in adjusting the side position of the bottom end of the workpiece for deep drawing.

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