Modularized rapid remodeling device for automobile part mold

Abstract

The invention relates to the technical field of automobile part machining, in particular to a modular quick remodeling device of an automobile part mold, which comprises a table top, a top plate is arranged above the table top, two support columns are fixedly connected to the upper surface of the table top, and first automatic docking mechanisms are arranged in the two support columns; the top ends of the two supporting columns are fixedly connected with the bottom face of a top plate, a first electric push rod is installed on the upper surface of the top plate, the output end of the first electric push rod is fixedly connected with a hanging plate, and a connecting block is arranged below the hanging plate. A traditional mode of manually butting and connecting the molds is replaced, automatic butting and limiting can be achieved through the lower mold tongue plate, the upper mold tongue plate and the limiting tongue plate and the T-shaped transverse plate and the limiting ball block when the upper mold and the lower mold are pushed, manual one-by-one component butting is not needed, the remodeling operation process is simplified, and the mold remodeling efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and more specifically to a modular quick changeover device for automotive parts molds. Background Technology

[0002] Stamping is a common processing method in the manufacturing of automotive parts. This method requires the use of various molds, and in actual production, there are situations where multiple molds share the same drive source to complete the stamping operation. Therefore, depending on the model of the parts being processed, it is necessary to frequently change the molds to achieve stamping processing of different automotive parts.

[0003] In the existing technology, the operation process for replacing stamping dies for automotive parts is cumbersome. Workers need to manually connect and connect the die with multiple components such as the drive source and positioning structure. The docking and positioning of each component lacks an automated adaptation mechanism, which not only consumes a lot of manpower and time and has low changeover efficiency, but also easily leads to inaccurate die positioning due to errors in manual docking, affecting the subsequent stamping processing accuracy and making it difficult to meet the needs of large-scale and high-efficiency production and processing of automotive parts.

[0004] Therefore, the present invention provides a modular quick changeover device for automotive parts molds to solve the above-mentioned problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a modular quick changeover device for automotive parts molds, which solves the problems of cumbersome mold changeover operations, low efficiency and poor positioning accuracy of the existing molds.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A modular quick-change device for automotive parts molds includes a table, a top plate on top of the table, two pillars fixedly connected to the upper surface of the table, each pillar having a first automatic docking mechanism inside, the tops of the two pillars being fixedly connected to the bottom surface of the top plate, a first electric push rod mounted on the upper surface of the top plate, a hanging plate fixedly connected to the output end of the first electric push rod, a connecting block below the hanging plate, a second automatic docking mechanism inside the connecting block, an upper mold below the connecting block, a bottom guide groove on the upper surface of the table, a lower mold placed inside the bottom guide groove, the lower mold and the upper mold being in a closed state, a feeding mechanism on the front of the table, and a material ejection mechanism mounted on the upper surface of the table.

[0007] Preferably, four dampers are fixedly connected to the upper surface of the connecting block, the top of each damper is fixedly connected to the hanging plate, and a buffer spring is sleeved on the outer surface of each damper. The upper and lower ends of each buffer spring are fixedly connected to the bottom surface of the hanging plate and the upper surface of the connecting block.

[0008] Preferably, the first automatic docking mechanism includes a horizontal guide groove, a vertical groove, and a second storage groove. The horizontal guide groove, the vertical groove, and the second storage groove are all opened inside the support column, and the horizontal guide groove, the vertical groove, and the second storage groove are connected to each other.

[0009] Preferably, the first automatic docking mechanism further includes a limiting tongue plate, the outer surface of which is slidably connected to the second storage groove, a second connecting rod is fixedly connected to the outer surface of the limiting tongue plate, the outer surface of the second connecting rod is slidably connected to the support column, a second pull plate is fixedly connected to one end of the second connecting rod, a second spring is sleeved on the outer surface of the second connecting rod, and the two ends of the second spring are fixedly connected to the inner sidewall of the second storage groove and the outer surface of the limiting tongue plate, respectively.

[0010] Preferably, the first automatic docking mechanism further includes a lower mold tongue plate and an upper mold tongue plate. The lower mold tongue plate is fixedly connected to the lower mold, and the upper mold tongue plate is fixedly connected to the upper mold. The limiting tongue plate is in contact with the lower mold tongue plate and the upper mold tongue plate respectively. The outer surfaces of the lower mold tongue plate and the upper mold tongue plate are slidably connected to the inner wall of the vertical groove.

[0011] Preferably, the second automatic docking mechanism includes a T-shaped horizontal plate and a T-shaped slot. The T-shaped slot is formed inside the connecting block. A T-shaped vertical plate is fixedly connected to the bottom surface of the T-shaped horizontal plate. An arc-shaped chamfer is formed on the outer surface of the T-shaped horizontal plate. The outer surfaces of both the T-shaped horizontal plate and the T-shaped vertical plate are slidably connected to the T-shaped slot. A connecting plate is fixedly connected to the bottom surface of the T-shaped vertical plate. The bottom surface of the connecting plate is fixedly connected to the upper surface of the upper mold.

[0012] Preferably, the inner wall of the T-shaped slot is provided with a first storage groove, the inner wall of the first storage groove is slidably connected with a limiting ball block, the outer surface of the limiting ball block is fixedly connected with a first connecting rod, the right end of the first connecting rod is fixedly connected with a first pull plate, the outer surface of the T-shaped plate is provided with a ball groove, and the outer surface of the limiting ball block is in contact with the inner wall of the ball groove.

[0013] Preferably, a first spring is sleeved on the outer surface of the first connecting rod, and the two ends of the first spring are fixedly connected to the outer surface of the connecting block and the first pull plate, respectively.

[0014] Preferably, the feeding mechanism includes a middle connecting plate, a rotating rod, and two side support plates. The rear ends of the two side support plates are fixedly connected to the front of the table. The middle connecting plate is fixedly connected to the two side support plates. The left and right ends of the rotating rod are respectively fixedly connected to the two side support plates. A flip plate is rotatably connected to the outer surface of the rotating rod. A second electric push rod is installed on the front of the flip plate. The output end of the second electric push rod is fixedly connected to the feeding plate.

[0015] Preferably, the unloading mechanism includes a support plate, the bottom surface of which is fixedly connected to the upper surface of the table, and a third electric push rod is installed on the back of the support plate, the output end of which is fixedly connected to the unloading plate.

[0016] The beneficial effects of this invention are as follows: 1. This invention replaces the traditional manual docking and connection of molds by setting up a first automatic docking mechanism, a second automatic docking mechanism and a feeding mechanism. When the upper mold and the lower mold are pushed, automatic docking and limiting can be achieved through the lower mold tongue plate, the upper mold tongue plate and the limiting tongue plate, the T-shaped plate and the limiting ball block. There is no need to manually dock the parts one by one, which simplifies the mold changeover operation process and effectively improves the mold changeover efficiency.

[0017] 2. This invention provides a vertical groove inside the support column to guide the movement of the upper and lower die tongues. When the first electric push rod drives the upper die to open and close, the upper die tongue slides along the vertical groove to prevent the upper die from shifting. Combined with the second automatic docking mechanism to limit the T-shaped plate, it ensures the alignment accuracy of the upper and lower dies and improves the finished product quality of automotive parts stamping. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the first electric push rod, the hanging plate, the connecting block, and the first automatic docking mechanism of the present invention; Figure 3 This is a top cross-sectional view of the connecting block of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the image; Figure 5 This is a three-dimensional structural schematic diagram from another perspective of the present invention; Figure 6 This is a schematic diagram showing the connection between the support column and the limiting tongue plate, the lower mold tongue plate and the upper mold tongue plate of the present invention; Figure 7 This is a top cross-sectional view of the support column of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B in the image.

[0019] In the diagram: 1. Tabletop; 2. Support column; 3. Top plate; 4. First electric push rod; 5. Hanging plate; 6. Connecting block; 7. Damper; 8. Buffer spring; 9. Support plate; 10. T-shaped horizontal plate; 11. T-shaped vertical plate; 12. T-shaped slot; 13. Connecting plate; 14. Upper mold; 15. Chamfered corner; 16. Ball groove; 17. First storage groove; 18. Limiting ball block; 19. First connecting rod; 20. First pull plate; 21. First spring; 2 2. Lower mold; 23. Bottom guide groove; 24. Horizontal guide groove; 25. Vertical groove; 26. Second pull plate; 27. Second connecting rod; 28. Limiting tongue plate; 29. ​​Second spring; 30. Second storage groove; 31. Lower mold tongue plate; 32. Upper mold tongue plate; 33. Side support plate; 34. Middle connecting plate; 35. Rotating rod; 36. Flipping plate; 37. Second electric push rod; 38. Loading plate; 39. Third electric push rod; 40. Unloading plate. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] A modular quick-change device for automotive parts molds, as shown in the attached figure. Figure 1-8 As shown, the device includes a tabletop 1, and a top plate 3 is provided above the tabletop 1. Two pillars 2 are symmetrically fixedly connected to the upper surface of the tabletop 1. The top ends of the two pillars 2 are fixedly connected to the bottom surface of the top plate 3, so that the tabletop 1, the pillars 2 and the top plate 3 form a stable frame support structure, providing basic support for mold installation and stamping operations.

[0022] A first electric push rod 4 is fixedly installed on the upper surface of the top plate 3. The output end of the first electric push rod 4 passes through the top plate 3 and extends downward. The output end of the first electric push rod 4 is fixedly connected to a hanging plate 5. A connecting block 6 is provided below the hanging plate 5. Four dampers 7 arranged in a rectangular pattern are fixedly connected to the upper surface of the connecting block 6. The top of each damper 7 is fixedly connected to the bottom surface of the hanging plate 5. A buffer spring 8 is sleeved on the outer surface of each damper 7. The upper and lower ends of each buffer spring 8 are fixedly connected to the bottom surface of the hanging plate 5 and the upper surface of the connecting block 6, respectively. The dampers 7 and buffer springs 8 work together to buffer and reduce shock when the connecting block 6 moves, thereby reducing rigid impact.

[0023] An upper mold 14 is provided below the connecting block 6. A bottom guide groove 23 is provided on the upper surface of the table 1. A lower mold 22 is placed inside the bottom guide groove 23. The lower mold 22 and the upper mold 14 are in the mold closing state. The bottom guide groove 23 provides guidance for the installation and movement of the lower mold 22, ensuring the mold closing alignment accuracy of the lower mold 22 and the upper mold 14.

[0024] Both pillars 2 are equipped with a first automatic docking mechanism, and the connecting block 6 is equipped with a second automatic docking mechanism. The automatic docking and limiting of the upper mold 14, lower mold 22 and the device are realized through the first automatic docking mechanism and the second automatic docking mechanism.

[0025] The first automatic docking mechanism includes a horizontal guide groove 24, a vertical groove 25, and a second storage groove 30. The horizontal guide groove 24, the vertical groove 25, and the second storage groove 30 are all opened inside the support column 2, and the horizontal guide groove 24, the vertical groove 25, and the second storage groove 30 are connected to form a channel for the docking components to move.

[0026] The first automatic docking mechanism also includes a limiting tongue plate 28. The outer surface of the limiting tongue plate 28 is slidably connected to the inner wall of the second storage groove 30. A second connecting rod 27 is fixedly connected to the outer surface of the limiting tongue plate 28. The outer surface of the second connecting rod 27 is slidably connected to the inner wall of the support column 2. One end of the second connecting rod 27 away from the limiting tongue plate 28 passes through the support column 2 and is fixedly connected to a second pull plate 26, which facilitates manual pulling by the worker to reset and adjust the limiting tongue plate 28. A second spring 29 is sleeved on the outer surface of the second connecting rod 27. The two ends of the second spring 29 are fixedly connected to the inner side wall of the second storage groove 30 and the outer surface of the limiting tongue plate 28, respectively, to provide power for the elastic reset of the limiting tongue plate 28.

[0027] Meanwhile, the first automatic docking mechanism also includes a lower mold tongue plate 31 and an upper mold tongue plate 32. The lower mold tongue plate 31 is fixedly connected to the side surface of the lower mold 22, and the upper mold tongue plate 32 is fixedly connected to the side surface of the upper mold 14. The end of the limiting tongue plate 28 away from the second spring 29 contacts the lower mold tongue plate 31 and the upper mold tongue plate 32 respectively, thereby limiting the lower mold tongue plate 31 and the upper mold tongue plate 32. The outer surfaces of the lower mold tongue plate 31 and the upper mold tongue plate 32 are slidably connected to the inner wall of the vertical groove 25. The vertical groove 25 provides guidance for the movement of the lower mold tongue plate 31 and the upper mold tongue plate 32, ensuring docking accuracy.

[0028] The second automatic docking mechanism includes a T-shaped horizontal plate 10 and a T-shaped slot 12. The T-shaped slot 12 is opened inside the connecting block 6. A T-shaped vertical plate 11 is fixedly connected to the bottom surface of the T-shaped horizontal plate 10. An arc-shaped chamfer 15 is opened on the outer surface of the T-shaped horizontal plate 10. The arc-shaped chamfer 15 facilitates the quick insertion of the T-shaped horizontal plate 10 and the T-shaped vertical plate 11 into the T-shaped slot 12. The outer surfaces of the T-shaped horizontal plate 10 and the T-shaped vertical plate 11 are slidably connected to the inner wall of the T-shaped slot 12. A connecting plate 13 is fixedly connected to the bottom surface of the T-shaped vertical plate 11. The bottom surface of the connecting plate 13 is fixedly connected to the upper surface of the upper mold 14, realizing the connection between the connecting block 6 and the upper mold 14.

[0029] The inner wall of the T-shaped slot 12 is provided with a first storage groove 17. The inner wall of the first storage groove 17 is slidably connected to a limiting ball block 18. The end of the limiting ball block 18 away from the first storage groove 17 is an arc-shaped structure, which facilitates engagement and disengagement with the mating structure. The outer surface of the limiting ball block 18 is fixedly connected to a first connecting rod 19. The end of the first connecting rod 19 away from the limiting ball block 18 passes through the connecting block 6 and is fixedly connected to a first pull plate 20. The outer surface of the T-shaped plate 10 is provided with a ball groove 16. The outer surface of the arc-shaped end of the limiting ball block 18 contacts the inner wall of the ball groove 16 to limit the T-shaped plate 10. The outer surface of the first connecting rod 19 is fitted with a first spring 21. The two ends of the first spring 21 are fixedly connected to the outer surface of the connecting block 6 and the inner surface of the first pull plate 20, respectively, to provide power for the elastic reset of the limiting ball block 18.

[0030] The front of the table 1 is provided with a feeding mechanism for assisted feeding and pushing of the mold. It includes a middle connecting plate 34, a rotating rod 35 and two side support plates 33. The rear ends of the two side support plates 33 are fixedly connected to the front of the table 1. The two ends of the middle connecting plate 34 are fixedly connected to the inner surfaces of the two side support plates 33 respectively. The left and right ends of the rotating rod 35 are fixedly connected to the inner surfaces of the two side support plates 33 respectively. A flip plate 36 is rotatably connected to the outer surface of the rotating rod 35. The flip plate 36 can rotate around the rotating rod 35 to avoid affecting the mold loading and unloading when feeding is not required. A second electric push rod 37 is fixedly installed on the front of the flip plate 36. The output end of the second electric push rod 37 passes through the flip plate 36 and is fixedly connected to a feeding plate 38. The feeding plate 38 is used to contact the mold and push it.

[0031] The upper surface of the table 1 is equipped with a material ejection mechanism for ejecting the stamped workpiece. The material ejection mechanism includes a support plate 9, the bottom surface of which is fixedly connected to the upper surface of the table 1. A third electric push rod 39 is fixedly installed on the back of the support plate 9. The output end of the third electric push rod 39 passes through the support plate 9 and is fixedly connected to the material ejection plate 40. The material ejection plate 40 is driven to move by the third electric push rod 39 to assist in the automated ejection of the stamped workpiece.

[0032] Working principle: When it is necessary to install and change the lower mold 22 and the upper mold 14, first place the lower mold 22 and the upper mold 14 in the mold-closing state on the intermediate connecting plate 34, rotate the flip plate 36 around the rotating rod 35 so that the bottom surface of the loading plate 38 contacts the side surface of the mold. After manually adjusting to a suitable pushing angle, start the second electric push rod 37. The output end of the second electric push rod 37 extends and drives the loading plate 38 to move. The loading plate 38 pushes the lower mold 22 and the upper mold 14 to move towards the bottom guide groove 23. The lower mold 22 slides along the bottom guide groove 23 to achieve initial guidance.

[0033] During the mold pushing process, the lower mold tongue 31 on the lower mold 22 and the upper mold tongue 32 on the upper mold 14 simultaneously enter the vertical groove 25 of the support column 2 and contact the end of the limiting tongue 28. Continuing to push the mold, the lower mold tongue 31 and the upper mold tongue 32 push the limiting tongue 28 to slide into the second receiving groove 30. The limiting tongue 28 drives the second connecting rod 27 to move synchronously and compress the second spring 29, putting the second spring 29 in a compressed and stored state. When the mold pushes... When the lower mold tongue 31 and the upper mold tongue 32 are fully pressed against the inner wall of the vertical groove 25 at the designated position, the limiting end of the limiting tongue 28 is aligned with the limiting grooves of the lower mold tongue 31 and the upper mold tongue 32. The second spring 29 is elastically reset, pushing the limiting tongue 28 to slide outward, so that the end of the limiting tongue 28 is inserted into the limiting grooves of the lower mold tongue 31 and the upper mold tongue 32, thereby achieving lateral limiting of the lower mold 22 and the upper mold 14 and completing the docking of the first automatic docking mechanism.

[0034] At the same time, the upper mold 14, connected by the connecting plate 13, inserts the T-shaped vertical plate 11 and T-shaped horizontal plate 10 into the T-shaped slot 12 of the connecting block 6. The arc-shaped chamfer 15 of the T-shaped horizontal plate 10 contacts the limiting ball block 18. During the continued insertion process, the T-shaped horizontal plate 10 pushes the limiting ball block 18 to slide into the first receiving slot 17. The limiting ball block 18 drives the first connecting rod 19 to move synchronously and pulls the first pulling plate 20, so that the first spring 21 is in a stretched and stored state. When the T-shaped horizontal plate 10... When the T-shaped vertical plate 11 and the inner wall of the back of the T-shaped slot 12 are completely pressed together, the ball groove 16 on the T-shaped horizontal plate 10 is aligned with the limiting ball block 18. The first spring 21 is elastically reset, pulling the first pull plate 20 and the first connecting rod 19 to move in the opposite direction, pushing the arc-shaped end of the limiting ball block 18 into the ball groove 16, thereby limiting the T-shaped horizontal plate 10 and the T-shaped vertical plate 11, completing the docking of the second automatic docking mechanism, and thus completing the automated installation and positioning of the lower mold 22 and the upper mold 14.

[0035] The first electric push rod 4 is activated, and its output end retracts, driving the hanging plate 5 to move upward. The hanging plate 5 drives the connecting block 6 to move upward through the damper 7 and the buffer spring 8. The connecting block 6 drives the upper mold 14 to move upward through the second automatic docking mechanism, realizing the opening of the upper mold 14 and the lower mold 22. The first electric push rod 4 is activated in the reverse direction, and its output end extends, driving the hanging plate 5, the connecting block 6 and the upper mold 14 to move downward, realizing the mold closing and stamping. During the up and down movement of the upper mold 14, the upper mold tongue plate 32 slides along the inner wall of the vertical groove 25, which plays a guiding role, ensuring that the upper mold 14 does not deviate during the movement, and improving the mold closing accuracy.

[0036] When it is necessary to disassemble the mold for shape change, the worker manually pulls the second pull plate 26. The second pull plate 26 drives the limiting tongue plate 28 to slide into the second receiving groove 30 through the second connecting rod 27, releasing the limitation on the lower mold tongue plate 31 and the upper mold tongue plate 32. At the same time, the worker manually pulls the first pull plate 20. The first pull plate 20 drives the limiting ball block 18 to slide into the first receiving groove 17 through the first connecting rod 19, releasing the limitation on the T-shaped plate 10. Then, the second electric push rod 37 is activated to move in the opposite direction, and the mold can be pushed out of the device through the feeding plate 38 to complete the mold disassembly. The above installation steps can be repeated for other mold models to achieve rapid shape change.

[0037] After the stamping of the automotive parts is completed, the third electric push rod 39 is activated. The output end of the third electric push rod 39 extends and drives the ejector plate 40 to move towards the mold. The ejector plate 40 contacts the stamped workpiece and pushes the workpiece to separate from the mold, realizing automated ejection. After ejection is completed, the output end of the third electric push rod 39 retracts, driving the ejector plate 40 to reset, waiting for the next processing operation.

[0038] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A modular quick-change device for automotive parts molds, comprising a table (1), characterized in that, A top plate (3) is provided above the table (1). Two pillars (2) are fixedly connected to the upper surface of the table (1). A first automatic docking mechanism is provided inside the two pillars (2). The tops of the two pillars (2) are fixedly connected to the bottom surface of the top plate (3). A first electric push rod (4) is installed on the upper surface of the top plate (3). A hanging plate (5) is fixedly connected to the output end of the first electric push rod (4). A connecting block (6) is provided below the hanging plate (5). A second automatic docking mechanism is provided inside the connecting block (6). An upper mold (14) is provided below the connecting block (6). A bottom guide groove (23) is opened on the upper surface of the table (1). A lower mold (22) is placed inside the bottom guide groove (23). The lower mold (22) and the upper mold (14) are in a closed mold state. A feeding mechanism is provided on the front of the table (1). A material ejection mechanism is installed on the upper surface of the table (1).

2. The modular quick-change device for automotive parts molds according to claim 1, characterized in that, Four dampers (7) are fixedly connected to the upper surface of the connecting block (6). The top of each damper (7) is fixedly connected to the hanging plate (5). A buffer spring (8) is sleeved on the outer surface of each damper (7). The upper and lower ends of each buffer spring (8) are fixedly connected to the bottom surface of the hanging plate (5) and the upper surface of the connecting block (6).

3. The modular quick-change device for automotive parts molds according to claim 1, characterized in that, The first automatic docking mechanism includes a horizontal guide groove (24), a vertical groove (25), and a second storage groove (30). The horizontal guide groove (24), the vertical groove (25), and the second storage groove (30) are all opened inside the support column (2), and the horizontal guide groove (24), the vertical groove (25), and the second storage groove (30) are connected.

4. The modular quick-change device for automotive parts molds according to claim 3, characterized in that, The first automatic docking mechanism also includes a limiting tongue plate (28), the outer surface of the limiting tongue plate (28) is slidably connected to the second storage groove (30), the outer surface of the limiting tongue plate (28) is fixedly connected to a second connecting rod (27), the outer surface of the second connecting rod (27) is slidably connected to the support column (2), one end of the second connecting rod (27) is fixedly connected to a second pull plate (26), the outer surface of the second connecting rod (27) is sleeved with a second spring (29), and the two ends of the second spring (29) are fixedly connected to the inner side wall of the second storage groove (30) and the outer surface of the limiting tongue plate (28) respectively.

5. A modular quick-change device for automotive parts molds according to claim 4, characterized in that, The first automatic docking mechanism further includes a lower mold tongue plate (31) and an upper mold tongue plate (32). The lower mold tongue plate (31) is fixedly connected to the lower mold (22), and the upper mold tongue plate (32) is fixedly connected to the upper mold (14). The limiting tongue plate (28) is in contact with the lower mold tongue plate (31) and the upper mold tongue plate (32) respectively. The outer surfaces of the lower mold tongue plate (31) and the upper mold tongue plate (32) are slidably connected to the inner wall of the vertical groove (25).

6. The modular quick-change device for automotive parts molds according to claim 1, characterized in that, The second automatic docking mechanism includes a T-shaped horizontal plate (10) and a T-shaped slot (12). The T-shaped slot (12) is opened inside the connecting block (6). A T-shaped vertical plate (11) is fixedly connected to the bottom surface of the T-shaped horizontal plate (10). An arc-shaped chamfer (15) is opened on the outer surface of the T-shaped horizontal plate (10). The outer surfaces of the T-shaped horizontal plate (10) and the T-shaped vertical plate (11) are slidably connected to the T-shaped slot (12). A connecting plate (13) is fixedly connected to the bottom surface of the T-shaped vertical plate (11). The bottom surface of the connecting plate (13) is fixedly connected to the upper surface of the upper mold (14).

7. A modular quick-change device for automotive parts molds according to claim 6, characterized in that, The inner wall of the T-shaped slot (12) is provided with a first storage groove (17), and the inner wall of the first storage groove (17) is slidably connected to a limiting ball block (18). The outer surface of the limiting ball block (18) is fixedly connected to a first connecting rod (19), and the right end of the first connecting rod (19) is fixedly connected to a first pull plate (20). The outer surface of the T-shaped plate (10) is provided with a ball groove (16), and the outer surface of the limiting ball block (18) is in contact with the inner wall of the ball groove (16).

8. A modular quick-change device for automotive parts molds according to claim 7, characterized in that, The outer surface of the first connecting rod (19) is fitted with a first spring (21), and the two ends of the first spring (21) are fixedly connected to the outer surface of the connecting block (6) and the first pull plate (20), respectively.

9. A modular quick-change device for automotive parts molds according to claim 1, characterized in that, The feeding mechanism includes a middle connecting plate (34), a rotating rod (35), and two side support plates (33). The rear ends of the two side support plates (33) are fixedly connected to the front of the table (1). The middle connecting plate (34) is fixedly connected to the two side support plates (33). The left and right ends of the rotating rod (35) are fixedly connected to the two side support plates (33) respectively. A flip plate (36) is rotatably connected to the outer surface of the rotating rod (35). A second electric push rod (37) is installed on the front of the flip plate (36). The output end of the second electric push rod (37) is fixedly connected to the feeding plate (38).

10. A modular quick-change device for automotive parts molds according to claim 1, characterized in that, The unloading mechanism includes a support plate (9), the bottom surface of which is fixedly connected to the upper surface of the table (1), and a third electric push rod (39) is installed on the back of the support plate (9). The output end of the third electric push rod (39) is fixedly connected to the unloading plate (40).

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