A quick die changing device for an automobile precision die

Abstract

The utility model discloses a kind of quick die changing device for automobile precision mould, it is related to automobile mould replacement technical field, the quick die changing device for automobile precision mould includes steering cross bar, the both ends of steering cross bar are symmetrically fixedly connected with adjustable expansion frame, and every adjustable expansion frame is installed with mould connecting column in rectangular array on it;Wherein, mould connecting column includes ladder shaft, and the end of ladder shaft is integrally provided with threaded column;The utility model, the output rod of electric push rod pushes the up-down movement of connecting hole plate, and cooperate with steering motor fixed on connecting hole plate, rotate while the up-down movement of steering cross bar, so that the mould of the both ends of steering cross bar is exchanged, so that the top die and bottom die needing to be replaced are replaced, and adjustable expansion frame symmetrically arranged at the both ends of steering cross bar can simultaneously replace top die and bottom die at one time, shorten replacement time, improve replacement efficiency.

Description

Technical Field

[0001] This utility model specifically relates to the field of automotive mold replacement technology, and more specifically to a quick mold changing device for automotive precision molds. Background Technology

[0002] Automotive precision molds refer to high-precision molds used for the molding and processing of automotive parts. Their manufacturing tolerances are usually controlled at the micron level. After the automotive precision molds are processed in the processing equipment, they need to be replaced. Generally, a robotic arm is used to pick them up, move the molds from the mold storage rack to the processing equipment, and remove the molds from the processing equipment.

[0003] However, in practice, it has been noted that when using a robotic arm to change molds, the mold needs to be removed from the processing equipment first, and then the mold on the mold storage rack needs to be removed and placed on the processing equipment. The whole process needs to be carried out step by step, which consumes a lot of time and thus prolongs the processing time of the mold. The low replacement efficiency leads to a decrease in processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a quick mold changing device for automotive precision molds. Through the engaging action of a conical chuck and elastic claws, the bottom mold is gripped. Furthermore, the sliding trapezoidal sleeve on the conical chuck cooperates with the elastic claws to facilitate automatic gripping and separation of the bottom mold. Combined with the adjustable extension frame above and the mold connection, it facilitates the replacement of the top mold, allowing for simultaneous replacement and improving efficiency. This addresses the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick mold changing device for automotive precision molds includes a steering crossbar, both ends of which are symmetrically fixedly connected to adjustable extension frames, and each of the adjustable extension frames is provided with mold connecting columns arranged in a rectangular array.

[0007] The mold connecting column includes a stepped shaft, with a threaded post integrally provided at the end of the stepped shaft, and a locking knob threaded through the adjustable extension frame at the end of the threaded post away from the stepped shaft.

[0008] As a further technical solution of this utility model, a tapered chuck is fixedly connected to the end of the stepped shaft away from the threaded column, and a sliding trapezoidal sleeve is provided at the end of the tapered chuck close to the stepped shaft, and the sliding trapezoidal sleeve slides in cooperation with the stepped shaft.

[0009] As a further technical solution of this utility model, the adjustable extension frame includes cross connecting frames symmetrically fixedly connected to both ends of the steering crossbar. Each of the cross connecting frames is provided with an adjustment groove in a rectangular array, and the end of the threaded column passes through the inner side of the adjustment groove.

[0010] As a further technical solution of this utility model, the corner of the cross connecting frame is integrally provided with a triangular reinforcing rib, and the stepped shaft and locking knob are respectively located on both sides of the adjusting slide.

[0011] As a further technical solution of this utility model, a top mold is provided above the steering crossbar, and the bottom of the top mold is provided with hollow positioning sleeves corresponding to the stepped shafts in a rectangular array, and a conical chuck is inserted into the hollow positioning sleeves at the corresponding positions.

[0012] As a further technical solution of this utility model, a bottom mold is provided below the steering crossbar, and elastic claws corresponding to the stepped shaft are provided in a rectangular array above the bottom mold, and the conical clasp head engages with the elastic claws.

[0013] As a further technical solution of this utility model, a lifting mounting frame located at the center position is provided below the steering crossbar. The lifting mounting frame includes a connecting plate, a steering motor is fixedly connected to the bottom of the connecting plate, and the end of the steering motor passes through the connecting plate and is fixedly connected to the steering crossbar.

[0014] As a further technical solution of this utility model, the bottom of the connecting hole plate is provided with a fixing seat, and the inner side of the fixing seat is integrally provided with an installation cavity. Both ends of the installation cavity are fixedly connected with electric push rods, and the ends of the electric push rods are fixedly connected to the connecting hole plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the output rod of the electric push rod pushes the connecting hole plate to move up and down, and cooperates with the steering motor fixed on the connecting hole plate to rotate the steering crossbar while it moves up and down, thereby changing the molds at both ends of the steering crossbar, thus replacing the top mold and bottom mold that need to be replaced. Furthermore, the adjustable extension frames symmetrically arranged at both ends of the steering crossbar can replace the top mold and bottom mold at the same time, shortening the replacement time and improving the replacement efficiency.

[0017] 2. In this utility model, loosening the locking knob on the threaded column allows the threaded column to slide inside the adjusting groove, thereby adjusting the position of the mold connecting column on the adjustable extension frame. This allows for adjustment at any time according to the size of the automotive mold, thereby increasing the range of applications and improving performance.

[0018] 3. In this utility model, when the stepped shaft grips the bottom mold, the stepped shaft drives the conical chuck to move downwards until the conical chuck engages with the elastic claw on the bottom mold. The elastic claw also pushes the sliding trapezoidal sleeve upwards, thereby lifting the adjustable extension frame to allow for replacement. During separation, the conical chuck needs to continue moving downwards. The inclined surface above the elastic claw contacts the sliding trapezoidal sleeve, causing the upper part of the elastic claw to expand outwards until the sliding trapezoidal sleeve enters the inner side of the elastic claw. Then, the stepped shaft is lifted upwards. At this time, the bottom mold, through its own weight, causes the end of the elastic claw to open under the action of the inclined surface of the sliding trapezoidal sleeve until the elastic claw moves below the conical chuck, thus completing the automatic engagement and separation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0020] Figure 2 This utility model Figure 1 A partial structural diagram.

[0021] Figure 3 This utility model Figure 2 A magnified view of a portion of the image.

[0022] Figure 4 This utility model Figure 2 A schematic diagram of the bottom structure.

[0023] Figure 5 This utility model Figure 1 A partial structural diagram.

[0024] Figure 6 This is a schematic diagram showing the disassembled structure of the lifting mounting frame and the fixed base in this utility model.

[0025] Figure 7 This is a three-dimensional structural diagram of the adjustable extension frame in this utility model.

[0026] Figure 8 This is a three-dimensional structural diagram of the mold connecting column in this utility model.

[0027] In the picture:

[0028] Steering crossbar-1, steering motor-2, lifting mounting bracket-3, connecting hole plate-31, limiting slide bar-32, electric push rod-33, fixed seat-4, limiting slide hole-41, mounting cavity-42, top mold-5, hollow positioning sleeve-51, bottom mold-6, elastic claw-61, adjustable extension frame-7, cross connecting frame-71, triangular reinforcing rib-72, adjusting slide groove-73, mold connecting column-8, stepped shaft-81, threaded column-82, locking knob-83, conical chuck-84, sliding trapezoidal sleeve-85, locking groove-9. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-8 This utility model provides a quick mold changing device for automotive precision molds, including a steering crossbar 1. Both ends of the steering crossbar 1 are symmetrically fixedly connected to adjustable extension frames 7, and each of the adjustable extension frames 7 is equipped with mold connecting columns 8 in a rectangular array.

[0031] The mold connecting column 8 includes a stepped shaft 81, and the end of the stepped shaft 81 is integrally provided with a threaded column 82. The end of the threaded column 82 away from the stepped shaft 81 passes through the adjustable extension frame 7 and is threadedly connected to a locking knob 83.

[0032] By adopting the above technical solution, the locking knob 83 on the threaded column 82 is loosened, allowing the threaded column 82 to slide inside the adjusting slide groove 73, thereby adjusting the position of the mold connecting column 8 on the adjustable extension frame 7. This allows for adjustments to be made at any time according to the size of the automotive mold, thereby increasing the range of applications and improving performance.

[0033] Furthermore, a tapered chuck 84 is fixedly connected to the end of the stepped shaft 81 away from the threaded post 82, and a sliding trapezoidal sleeve 85 is provided at the end of the tapered chuck 84 near the stepped shaft 81, and the sliding trapezoidal sleeve 85 slides in cooperation with the stepped shaft 81.

[0034] Furthermore, the adjustable extension frame 7 includes cross connecting frames 71 symmetrically fixedly connected to both ends of the steering crossbar 1. Each cross connecting frame 71 is provided with an adjustment groove 73 in a rectangular array, and the end of the threaded column 82 passes through the inner side of the adjustment groove 73.

[0035] Furthermore, the corner of the cross connecting frame 71 is integrally provided with a triangular reinforcing rib 72, and the stepped shaft 81 and the locking knob 83 are respectively located on both sides of the adjusting slide 73.

[0036] More specifically, a top mold 5 is provided above the steering crossbar 1, and the bottom of the top mold 5 is provided with hollow positioning sleeves 51 corresponding to the stepped shaft 81 in a rectangular array, and the conical clasp 84 is inserted into the hollow positioning sleeves 51 at the corresponding positions.

[0037] Furthermore, a bottom mold 6 is provided below the steering crossbar 1, and elastic claws 61 corresponding to the stepped shaft 81 are provided in a rectangular array above the bottom mold 6, and the conical clasp head 84 engages with the elastic claws 61.

[0038] By adopting the above technical solution, when the stepped shaft 81 grips the bottom mold 6, the stepped shaft 81 drives the conical chuck 84 to move downwards until the conical chuck 84 engages with the elastic claw 61 on the bottom mold 6. The elastic claw 61 also pushes the sliding trapezoidal sleeve 85 upwards, thereby causing the adjustable extension frame 7 to lift the bottom mold 6 for replacement. During separation, the conical chuck 84 needs to continue to move downwards. The inclined surface above the elastic claw 61 will contact the sliding trapezoidal sleeve 85, causing the upper part of the elastic claw 61 to expand outwards until the sliding trapezoidal sleeve 85 enters the inner side of the elastic claw 61. Then, the stepped shaft 81 is lifted upwards. At this time, the bottom mold 6, through its own weight, causes the end of the elastic claw 61 to open under the action of the inclined surface of the sliding trapezoidal sleeve 85 until the elastic claw 61 moves below the conical chuck 84, thereby completing the automatic engagement and separation.

[0039] Furthermore, a lifting mounting frame 3 located at the center is provided below the steering crossbar 1. The lifting mounting frame 3 includes a connecting hole plate 31. A steering motor 2 is fixedly connected to the bottom of the connecting hole plate 31, and the end of the steering motor 2 passes through the connecting hole plate 31 and is fixedly connected to the steering crossbar 1.

[0040] Furthermore, the bottom of the connecting plate 31 is provided with a fixing seat 4, and the inner side of the fixing seat 4 is integrally provided with an installation cavity 42. Both ends of the installation cavity 42 are fixedly connected with electric push rods 33, and the ends of the electric push rods 33 are fixedly connected to the connecting plate 31.

[0041] By adopting the above technical solution, the output rod of the electric push rod 33 pushes the connecting hole plate 31 to move up and down, and in conjunction with the steering motor 2 fixed on the connecting hole plate 31, rotates the steering crossbar 1 while it moves up and down, thereby changing the molds at both ends of the steering crossbar 1, thereby replacing the top mold 5 and bottom mold 6 that need to be replaced. Furthermore, the adjustable extension frame 7 symmetrically arranged at both ends of the steering crossbar 1 can replace the top mold 5 and bottom mold 6 at the same time, shortening the replacement time and improving the replacement efficiency.

[0042] Furthermore, the lower part of the connecting plate 31 is fixedly connected with the limiting slide rod 32 in a rectangular array, and the fixing seat 4 is provided with the limiting slide hole 41 corresponding to the limiting slide rod 32 in a rectangular array, and the end of the limiting slide rod 32 is inserted into the limiting slide hole 41.

[0043] When the electric push rod 33 pushes the connecting hole plate 31 to move up and down, the connecting hole plate 31 will drive the limiting slide rod 32 to slide up and down inside the limiting slide hole 41, thereby limiting the connecting hole plate 31.

[0044] The top of the top mold 5 and the bottom of the bottom mold 6 are both provided with locking grooves 9. The locking grooves 9 are cylindrical and have two interlocking arc-shaped baffles integrally provided at their ends. The locking grooves 9 facilitate the installation of the top mold 5 and the bottom mold 6 onto the equipment.

[0045] The working principle of this utility model is as follows: In use, the fixed base 4 is first installed between the processing equipment and the mold storage rack. When changing the mold, the electric push rod 33 pushes the steering crossbar 1 up and down through the connecting hole plate 31. Simultaneously, the steering motor 2 drives the steering crossbar 1 to rotate, causing the adjustable extension frame 7 and the mold connecting column 8 at the end of the steering crossbar 1 to rotate between the top mold 5 and the bottom mold 6, respectively. The electric push rod 33 pushes the steering crossbar 1 upwards, causing the conical chuck 84 above the steering crossbar 1 to insert into the corresponding hollow positioning sleeve 51. Then, the locking buckle between the mold storage rack and the locking groove 9 is opened. At the same time, the mold connecting column at the other end removes the top mold 5 at the other end. Then, the electric push rod 33 pushes the steering crossbar 1 downwards, causing the stepped shaft 81 to drive the conical chuck 84 downwards until the conical chuck 84 is engaged in the elastic claw 61 on the bottom mold 6. The elastic claw 61 also pushes the sliding trapezoidal sleeve 85 upwards, thereby causing the adjustable extension frame 7 to move upwards. The bottom mold 6 is lifted, and then the steering motor 2 drives the steering crossbar 1 to rotate, replacing the top mold 5 and bottom mold 6 at both ends of the steering crossbar 1. First, the top mold 5 is placed in the designated position, and then the position of the top mold 5 is fixed by the cooperation of the locking buckle and locking groove 9 on the processing equipment and the mold storage rack. Then, the bottom mold 6 is installed. When it is necessary to separate the conical chuck 84 and the elastic claw 61, the conical chuck 84 needs to be moved downward. The inclined surface above the elastic claw 61 will contact the sliding trapezoidal sleeve 85, causing the upper part of the elastic claw 61 to expand outward until the sliding trapezoidal sleeve 85 enters the inner side of the elastic claw 61. Then, the stepped shaft 81 is lifted upward. At this time, the bottom mold 6, through its own weight, causes the end of the elastic claw 61 to open under the action of the inclined surface of the sliding trapezoidal sleeve 85 until the elastic claw 61 moves to the bottom of the conical chuck 84, thus completing the automatic engagement and separation. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick mold change device for automotive precision molds, characterized in that: It includes a steering crossbar (1), both ends of which are symmetrically fixedly connected to adjustable extension frames (7), and each of the adjustable extension frames (7) is equipped with mold connecting columns (8) in a rectangular array. Among them, the mold connecting column (8) includes a stepped shaft (81), and the end of the stepped shaft (81) is integrally provided with a threaded column (82), and the end of the threaded column (82) away from the stepped shaft (81) passes through the adjustable extension frame (7) and is threadedly connected to a locking knob (83).

2. The quick mold change device for automotive precision molds according to claim 1, characterized in that: The stepped shaft (81) is fixedly connected to a tapered chuck (84) at the end away from the threaded post (82), and a sliding trapezoidal sleeve (85) is provided at the end of the tapered chuck (84) near the stepped shaft (81), and the sliding trapezoidal sleeve (85) slides with the stepped shaft (81).

3. The quick mold change device for automotive precision molds according to claim 2, characterized in that: The adjustable extension frame (7) includes cross connecting frames (71) symmetrically fixedly connected to both ends of the steering crossbar (1). Each of the cross connecting frames (71) is provided with an adjustment groove (73) in a rectangular array, and the end of the threaded column (82) passes through the inner side of the adjustment groove (73).

4. The quick mold change device for automotive precision molds according to claim 3, characterized in that: The corner of the cross connecting frame (71) is integrally provided with a triangular reinforcing rib (72), and the stepped shaft (81) and locking knob (83) are located on both sides of the adjusting slide (73).

5. The quick mold change device for automotive precision molds according to claim 4, characterized in that: The steering crossbar (1) is provided with a top mold (5) above it, and the bottom of the top mold (5) is provided with hollow positioning sleeves (51) corresponding to the stepped shaft (81) in a rectangular array, and the conical chuck (84) is inserted into the hollow positioning sleeves (51) at the corresponding positions.

6. The quick mold change device for automotive precision molds according to claim 5, characterized in that: The bottom mold (6) is provided below the steering crossbar (1), and the bottom mold (6) is provided with elastic claws (61) corresponding to the stepped shaft (81) in a rectangular array above it, and the conical clasp (84) engages with the elastic claws (61).

7. The quick mold change device for automotive precision molds according to claim 6, characterized in that: Below the steering crossbar (1), there is a lifting mounting frame (3) located at the center. The lifting mounting frame (3) includes a connecting hole plate (31). The bottom of the connecting hole plate (31) is fixedly connected to a steering motor (2), and the end of the steering motor (2) passes through the connecting hole plate (31) and is fixedly connected to the steering crossbar (1).

8. The quick mold change device for automotive precision molds according to claim 7, characterized in that: The bottom of the connecting hole plate (31) is provided with a fixing seat (4), and the inner side of the fixing seat (4) is integrally provided with an installation cavity (42). Both ends of the installation cavity (42) are fixedly connected with electric push rods (33), and the ends of the electric push rods (33) are fixedly connected to the connecting hole plate (31).

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