A multi-station quick-change mold mechanism for a bolt cold heading machine

Abstract

This utility model relates to the field of cold heading machine mold replacement, and discloses a multi-station quick-change mold mechanism for a bolt cold heading machine. It includes a machine body, a rear platen seat disposed inside the machine body, and a mold mounting seat disposed at the top of the rear platen seat. An installation assembly is provided between the rear platen seat and the mold mounting seat. The installation assembly includes a mounting plate fixedly connected to the left side of the mold mounting seat near its bottom. A connecting plate is fixedly connected to the left side of the mounting plate. Multiple sets of locking blocks are evenly distributed and fixedly connected to the bottom of the mounting plate. The top left side of the rear platen seat has evenly distributed slots corresponding to the multiple sets of locking blocks. In this utility model, by quickly releasing the limiting positions of the mounting plate and the connecting plate, the mounting plate and the rear platen seat can be quickly and securely connected for installation or removal. The operation is simple and convenient, significantly shortening mold replacement time, effectively reducing downtime of the cold heading machine, allowing the equipment to be put into production more efficiently, and improving overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold replacement for cold heading machines, and in particular to a multi-station quick-change mechanism for bolt cold heading machines. Background Technology

[0002] In modern manufacturing, bolts are a widely used basic connecting component, and their production efficiency and quality are of paramount importance. As a key piece of equipment in bolt production, bolt cold heading machines often need to frequently change molds according to different order requirements during large-scale production in order to produce bolts of different specifications and models.

[0003] Traditional methods for changing molds in bolt cold heading machines have many drawbacks. Some cold heading machine molds use bolt connections, which require tools to unscrew a large number of bolts one by one when changing molds. This consumes a lot of time and physical strength, thus increasing the changeover time, downtime, and reducing production efficiency. To address these issues, a multi-station quick-change mechanism for bolt cold heading machines is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-station mold quick-change mechanism for a bolt cold heading machine, which aims to improve the problem in the prior art that "when changing the mold, it is necessary to use tools to tighten a large number of bolts one by one, which increases the operation time and downtime, and reduces the replacement efficiency and production efficiency".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-station mold quick-change mechanism for a bolt cold heading machine, comprising a machine body, a rear platen seat disposed inside the machine body, and a mold mounting seat disposed at the top of the rear platen seat. An installation assembly is provided between the rear platen seat and the mold mounting seat. The installation assembly includes an installation plate fixedly connected to the left side of the mold mounting seat near the bottom. A connecting plate is fixedly connected to the left side of the installation plate. Multiple sets of locking blocks are evenly distributed and fixedly connected to the bottom of the installation plate. The top left side of the rear platen seat is evenly provided with slots corresponding to the multiple sets of locking blocks, and the multiple sets of locking blocks are respectively engaged with the inner walls of the corresponding multiple sets of slots. Threaded rods are threaded through and threadedly connected to the front and rear outer sides of the installation plate. Two sets of threaded rods are threaded through the outer sides of the installation plate and fixedly connected to the rear platen seat. Turntables are fixedly connected to the outer sides of both sets of threaded rods.

[0006] As a further description of the above technical solution:

[0007] The mounting plate is U-shaped, and the U-shaped opening of the mounting plate faces downwards to cooperate with the connecting plate to form a frame shape that fits onto the top left side of the rear plate.

[0008] As a further description of the above technical solution:

[0009] Both the card block and the card slot are designed in a dovetail rectangular shape.

[0010] As a further description of the above technical solution:

[0011] The left side of the turntable is fixed by a stabilizing component.

[0012] As a further description of the above technical solution:

[0013] The stabilizing component includes a guide rod, with mounting blocks fixedly connected to both the front and rear ends of the guide rod. Baffles are fixedly connected to the outer sides of both sets of mounting blocks. The two sets of baffles are respectively located on the outer sides of the two sets of turntables. Slide grooves are opened on the right side of both sets of mounting blocks. Slider blocks are fixedly connected to the left side of the mounting plate near the front and rear surfaces. The two types of sliders are respectively engaged with the inner walls of the corresponding two sets of slide grooves.

[0014] As a further description of the above technical solution:

[0015] Both sets of grooves have extrusion grooves on their inner sides.

[0016] As a further description of the above technical solution:

[0017] Both sets of sliders have elastic plates fixedly connected to their left sides, and the two sets of elastic plates are respectively snapped into the inner walls of the corresponding two sets of extrusion grooves.

[0018] As a further description of the above technical solution:

[0019] Both the groove and the slider are T-shaped.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the rotating turntable drives the threaded rod to rotate, quickly releasing the limit of the mounting plate and the connecting plate. At this time, the mounting plate and the rear plate can be quickly fastened and installed or removed. The operation is simple and convenient, which greatly shortens the mold change time, effectively reduces the downtime of the cold heading machine, and allows the equipment to be put into production more efficiently, thus improving the overall production efficiency.

[0022] 2. In this utility model, the baffle can be quickly installed by attaching the slide groove to the outside of the slider from top to bottom and then engaging the elastic plate into the extrusion groove. The baffle limits the turntable to prevent it from loosening, making the mold mounting base and the rear platen firmly connected. Even in the high-speed and high-pressure working environment of the cold heading machine, it can maintain good stability and extend the service life of the mold and equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a top view of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the rear striking base and the mold mounting base in this utility model;

[0026] Figure 4 This is a three-dimensional structural disassembly and cross-sectional diagram of the mounting block in this utility model;

[0027] Figure 5 This is a three-dimensional cross-sectional view and disassembled schematic diagram of the connecting plate and mounting plate in this utility model.

[0028] Legend:

[0029] 1. Machine body; 2. Mounting components; 3. Stabilizing components; 4. Mold mounting base; 5. Rear plate; 21. Mounting plate; 22. Turntable; 23. Connecting plate; 24. Clamping block; 25. Threaded rod; 26. Clamping groove; 31. Guide rod; 32. Baffle; 33. Mounting block; 34. Extrusion groove; 35. Slide groove; 36. Slider; 37. Elastic sheet. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of a multi-station quick-change mold mechanism for a bolt cold heading machine, comprising a machine body 1, a rear platen 5 disposed inside the machine body 1, and a mold mounting seat 4 disposed at the top of the rear platen 5. The machine body 1 is the basic support structure of the multi-station bolt cold heading machine, usually made of high-strength cast iron or steel, possessing sufficient strength and stability to withstand the enormous impact force generated during the cold heading process. It internally houses the installation space for various mechanical transmission components, electrical control systems, and hydraulic or pneumatic systems, ensuring the normal operation of the entire cold heading machine. The rear platen 5, installed inside the machine body 1, is a crucial component driving the mold mounting seat 4 and the mold movement. The mold mounting seat 4, located at the top of the rear platen 5, is used for mounting and fixing the mold. The rear platen 5 and... An installation component 2 is provided between the mold mounting bases 4. The installation component 2 includes a mounting plate 21 fixedly connected to the left side of the mold mounting base 4 near the bottom. The mounting plate 21 is U-shaped and fixedly connected to the left side of the mold mounting base 4 near the bottom. A connecting plate 23 is fixedly connected to the left side of the mounting plate 21. The connecting plate 23 and the mounting plate 21 together form a stable connection structure. It mainly serves to strengthen the connection between the mounting plate 21 and the rear plate holder 5, so that the mold mounting base 4 can be more firmly fixed on the rear plate holder 5 during the cold heading process. Multiple sets of locking blocks 24 are evenly distributed and fixedly connected to the bottom end of the mounting plate 21. The locking blocks 24 are evenly distributed and fixedly connected to the bottom end of the mounting plate 21 and are used to cooperate with the locking grooves 26 on the rear plate holder 5 for installation.

[0032] Furthermore, the left top edge of the rear plate 5 is evenly provided with slots 26 corresponding to multiple sets of locking blocks 24, and the multiple sets of locking blocks 24 are respectively engaged with the inner walls of the corresponding multiple sets of slots 26. Threaded rods 25 are threaded through and threaded to the front and rear outer sides of the mounting plate 21. The threaded rods 25 are threaded to the rear plate 5 for further fixing the mounting plate 21 and the rear plate 5. Two sets of threaded rods 25 are threaded through the outer sides of the mounting plate 21 and threaded to the rear plate 5 for installation and fixation. Turntables 22 that drive the threaded rods 25 to rotate are fixedly connected to the outer sides of both sets of threaded rods 25. The mounting plate 21 is U-shaped, and the U-shaped opening of the mounting plate 21 faces downwards to cooperate with the connecting plate 23. The frame-shaped fitting is attached to the top left side of the rear platen 5. This design allows the opening to face downwards and cooperate with the connecting plate 23 to form a frame shape, which can fit onto the top left side of the rear platen 5 to position and fix the mold mounting base 4 from multiple directions. Both the locking block 24 and the slot 26 are designed as dovetail rectangles. This special shape design has good positioning and anti-dislodgement functions. After the dovetail rectangle locking block 24 is inserted into the slot 26, it can accurately position the mold mounting base 4 in the horizontal and vertical directions, preventing it from shifting during the cold forging process. At the same time, the structure of the dovetail groove makes it difficult for the locking block 24 to fall out of the slot 26, improving the reliability of the connection.

[0033] Reference Figure 2 , Figure 3 and Figure 4 The left side of the turntable 22 is fixed by a stabilizing component 3. The stabilizing component 3 includes a guide rod 31 that guides the movement of two sets of mounting blocks 33. The front and rear ends of the guide rod 31 are fixedly connected to mounting blocks 33 that support baffles 32. Baffles 32 are fixedly connected to the outer sides of the two sets of mounting blocks 33. The two sets of baffles 32 are respectively set on the outer sides of the two sets of turntables 22. The baffles 32 limit the turntables 22 to prevent them from rotating and increase the stability of the mounting plate 21 and the mold mounting base 4. The right side of the two sets of mounting blocks 33 is provided with a groove 35 to provide space for the slider 36 to be inserted and installed. The left side of the mounting plate 21 is fixedly connected with a matching groove 35 near the front and rear surfaces to hold the baffle 32, the mounting block 33 and the guide rod 33 in place. The sliders 36 mounted on the rod 31 are respectively engaged with the inner walls of the two sets of sliding grooves 35. Each set of sliding grooves 35 has a pressing groove 34 on its inner side. Each set of sliders 36 has an elastic piece 37 fixedly connected to its left side. The two sets of elastic pieces 37 are respectively engaged with the inner walls of the two sets of pressing grooves 34. The elastic force of the elastic pieces 37 can help them engage with the pressing grooves 34, which can increase the stability of the installation of the baffle 32, the mounting block 33 and the guide rod 31. Both the sliding grooves 35 and the sliders 36 are T-shaped, which can effectively prevent the sliders 36 from lateral displacement in the sliding grooves 35 and ensure the stability of the mounting plate 21 during movement.

[0034] Working principle: In use, the evenly distributed locking blocks 24 at the bottom of the mounting plate 21 are aligned with the locking groove 26 at the top left side of the rear plate 5. Utilizing the dovetail rectangular design, the locking blocks 24 can quickly and accurately engage in the locking groove 26, achieving initial positioning of the mold mounting base 4 in the horizontal and vertical directions, ensuring the basic accuracy of mold installation. Next, the U-shaped frame structure formed by the mounting plate 21 and the connecting plate 23 is fitted onto the top left side of the rear plate 5, further limiting the mold mounting base 4 from multiple directions. At this time, rotating the turntable 22 drives the threaded rod 25, which is fixedly connected to it, to rotate. Since the threaded rod 25 is threadedly connected to the mounting plate 21 and the rear plate 5, as the threaded rod 25 rotates, it passes through the front and rear sides of the mounting plate 21 and is threadedly connected to the rear plate 5, thereby firmly fixing the mold mounting base 4 onto the rear plate 5.

[0035] At this time, the moving guide rod 31 drives the two sets of mounting blocks 33 and baffles 32 to move. By engaging the slider 36 into the groove 35, the mounting blocks 33 and baffles 32 can be stably installed. After the elastic force of the elastic sheet 37 pulls the extrusion groove 34, the baffles 32 can be quickly installed and fixed. At this time, the baffles 32 are located outside the turntable 22, effectively restricting the axial movement of the turntable 22 and preventing it from shifting during rotation. This ensures the rotational stability of the threaded rod 25, thereby ensuring the stability of the mounting plate 21, the mold mounting seat 4 and the rear plate seat 5, and ensuring the reliability of the connection between the mold mounting seat 4 and the rear plate seat 5.

[0036] When it is necessary to change the mold, move the guide rod 31 upward to move the stabilizing component 3 and make the baffle 32 move upward and out of the turntable 22 to release the limit of the turntable 22. At this time, rotate the turntable 22 in the opposite direction to make the threaded rod 25 move out of the back plate 5 to release the limit of the mold mounting base 4. Then move the mold mounting base 4 to the seat to drive the locking block 24 to disengage from the locking groove 26. The old mold and the mold mounting base 4 can be removed as a whole to complete the mold disassembly operation. The operation is more convenient, improves the mold replacement efficiency, reduces downtime, and thus improves production efficiency.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-station die quick-change mechanism of a bolt cold header, comprising a machine body (1), a rear die holder (5) arranged inside the machine body (1), and a die mounting seat (4) arranged at the top end of the rear die holder (5), characterized in that: An installation component (2) is provided between the rear platen (5) and the mold mounting base (4); The mounting assembly (2) includes a mounting plate (21) fixedly connected to the left side of the mold mounting base (4) near the bottom. A connecting plate (23) is fixedly connected to the left side of the mounting plate (21). Multiple sets of locking blocks (24) are evenly distributed and fixedly connected to the bottom of the mounting plate (21). The top left side of the rear plate (5) is evenly provided with slots (26) opposite to the multiple sets of locking blocks (24). The multiple sets of locking blocks (24) are respectively locked into the inner wall of the corresponding multiple sets of slots (26). Threaded rods (25) are threaded through and threaded to the front and rear outer sides of the mounting plate (21). The two sets of threaded rods (25) are threaded through the outer side of the mounting plate (21) and threadedly connected to the rear plate (5). Turntables (22) are fixedly connected to the outer side of the two sets of threaded rods (25).

2. The multi-station quick-change mold mechanism for a bolt cold heading machine according to claim 1, characterized in that: The mounting plate (21) is U-shaped, and the U-shaped opening of the mounting plate (21) faces downward and cooperates with the connecting plate (23) to form a frame shape that fits onto the left top of the rear footplate (5).

3. The multi-station mold quick-change mechanism for a bolt cold heading machine according to claim 1, characterized in that: Both the card block (24) and the card slot (26) are designed as dovetail rectangles.

4. The multi-station mold quick-change mechanism for a bolt cold heading machine according to claim 1, characterized in that: The left side of the turntable (22) is fixed by a stabilizing component (3).

5. The multi-station quick-change mold mechanism for a bolt cold heading machine according to claim 4, characterized in that: The stabilizing component (3) includes a guide rod (31), with mounting blocks (33) fixedly connected to both the front and rear ends of the guide rod (31). Baffles (32) are fixedly connected to the outer sides of both sets of mounting blocks (33). The two sets of baffles (32) are respectively set on the outer sides of the two sets of turntables (22). Slide grooves (35) are opened on the right side of both sets of mounting blocks (33). Slider blocks (36) are fixedly connected to the left side of the mounting plate (21) near the front and rear surfaces. The two types of sliders (36) are respectively engaged in the inner walls of the corresponding two sets of slide grooves (35).

6. The multi-station mold quick-change mechanism for a bolt cold heading machine according to claim 5, characterized in that: Both sets of the slide grooves (35) have extrusion grooves (34) on their inner sides.

7. The multi-station quick-change mold mechanism for a bolt cold heading machine according to claim 5, characterized in that: Both sets of sliders (36) are fixedly connected to the left side of each set of elastic plates (37), and the two sets of elastic plates (37) are respectively snapped into the inner walls of the corresponding two sets of extrusion grooves (34).

8. The multi-station quick-change mold mechanism for a bolt cold heading machine according to claim 5, characterized in that: Both the groove (35) and the slider (36) are T-shaped.

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