Combined quick-change pressing die of oil press

Abstract

The utility model provides an oil press combination quick-change pressing die which comprises an upper die and a die head, the upper die comprises a side plate and an upper connecting plate, the upper connecting plate is connected with the output end of an oil press, a connecting hole is formed in the bottom of the side plate, and a locking hole corresponding to the connecting hole in position is formed in the die head. And the side plates are detachably connected with the die head through a locking device penetrating through the connecting holes and the locking holes. The die has the advantages that the die head and the upper die are separated by changing the integrated structure of a traditional pressing die, the die head is assembled and disassembled through the locking device, when different parts are pressed, only the die head of the corresponding model needs to be replaced, the upper die and the die head do not need to be integrally replaced, great convenience is provided for workshop management, and the production efficiency is improved. Compared with the upper die and the die head which are welded into a whole, the single die head is small in occupied space and easier to manage; and meanwhile, when different products are replaced, the efficiency is higher, and only the die head needs to be replaced.

Description

Technical Field

[0001] The utility model relates to a combined quick-change pressing die for a hydraulic press, belonging to the technical field of engineering machinery processing. Background Art

[0002] In the technical field of engineering machinery equipment processing, the 500T hydraulic press is mainly used for pressing the long beams and short beams of the pressing wheel frame of a compactor. However, due to the large number of part specifications and models, the specifications and sizes of the pressing dies are also set in various types to match the part specifications, so as to press long beams and short beams of different models.

[0003] In the prior art, the pressing die mainly includes an upper die and a die head. The die head and the upper die are welded together to improve stability. Therefore, when pressing parts of different specifications, the whole upper die needs to be replaced together when replacing the pressing die. Both the upper die and the die head are metal products, with large weight, and the installation and disassembly are extremely inconvenient, time-consuming and laborious; at the same time, it is not convenient for storage and management, bringing many troubles to the workshop production.

[0004] In addition, due to the way of welding the upper die and the die head together to improve stability, in the existing pressing die, the connection between the top of the die head and the bottom of the upper die is the surface-to-surface connection of the connecting plate. At the same time, the side of the T-shaped plate of the upper die is provided with a plurality of rib plates to improve the strength of the upper die. Such a setting will interfere with the parts to be processed during the working process, resulting in an unsmooth pressing process and affecting the qualification rate of the parts. Summary of the Invention

[0005] Object of the Invention: Aiming at the deficiencies in the prior art, the utility model provides a combined quick-change pressing die for a hydraulic press. By setting the die head and the upper die as an assembled structure, the replacement of the die head is more convenient, and there is no need to replace the whole upper die and the die head, saving a large amount of manpower, material resources, time and economic costs.

[0006] Technical Solution: A combined quick-change pressing die for a hydraulic press includes an upper die and a die head. The upper die includes side plates and an upper connecting plate. The upper connecting plate is connected to the output end of the hydraulic press. Connecting holes are opened at the bottom of the side plates, and locking holes corresponding to the positions of the connecting holes are opened on the die head. The side plates and the die head are detachably connected through a locking device passing through the connecting holes and the locking holes.

[0007] The utility model changes the traditional integral structure of the pressing die, separates the die head and the upper die, and assembles and disassembles the die head through a locking device. When applying different parts for pressing, only the die head of the corresponding model needs to be replaced, instead of replacing the whole upper die and the die head. Moreover, it provides great convenience for workshop management. Compared with the upper die and the die head welded together, a single die head occupies less space and is easier to manage; at the same time, when replacing operations are carried out for different products, the efficiency is higher, and only the die head needs to be replaced.

[0008] The locking device is a pneumatic locking pin. The connecting hole and the locking hole have the same inner diameter. The inner wall of the connecting hole is provided with internal threads. A stepped surface is provided at one end of the locking hole away from the connecting hole. The upper half of the pneumatic locking pin is connected to the internal threads of the connecting hole in a matching manner through external threads. The balls provided on the lower half of the pneumatic locking pin are limited by the stepped surface.

[0009] Through the cooperation of the pneumatic locking pin and the stepped surface in the locking hole, the replacement efficiency of the die head can be further increased. Moreover, the contact friction between the pneumatic locking pin and the connecting hole and the locking hole is small, making it more durable and simple to maintain. In case of stability problems, only the pneumatic locking pin needs to be replaced or the stepped surface needs to be reprocessed, greatly improving the work efficiency and stability.

[0010] The locking device is a fastening bolt. The connecting hole is set as a clearance hole. The inner wall of the locking hole is provided with internal threads. The fastening bolt passes through the connecting hole and is connected to the internal threads of the locking hole in a matching manner.

[0011] The die head and the upper die are connected into an integral body by the fastening bolt, which has high stability, simple operation, and the operator is more proficient in this installation method, and the cost is relatively low.

[0012] An installation and disassembly window is opened at a position close to the bottom of the side plate. A connecting hole is opened at the bottom of the installation and disassembly window. The locking device is installed and disassembled through the installation and disassembly window.

[0013] By opening the installation and disassembly window, on the one hand, the lateral width occupied by the side plate is reduced, avoiding interference with the product during the pressing process. On the other hand, enough space for the up and down movement of the locking device is provided, as well as enough operating space for the operator, further improving the die head replacement efficiency.

[0014] A guiding groove is provided at the bottom of the side plate. A sliding part matching the guiding groove is provided on one side of the die head close to the guiding groove. The sliding part is slidably connected to the inner wall of the guiding groove.

[0015] By providing the sliding part and the guiding groove and their cooperation, the positioning of the die head is realized, making the installation of the die head faster.

[0016] A sliding part is provided at the bottom of the side plate. A guiding groove matching the sliding part is provided on one side of the die head close to the sliding part. The sliding part is slidably connected to the inner wall of the guiding groove.

[0017] Guiding inclined surfaces are provided on both sides of the side plate close to the bottom, both of which are inward.

[0018] In order to avoid interference between the parts and the side plate after reaching a certain angle during the pressing process, which affects the quality of the parts, guiding inclined surfaces are provided to avoid part interference and ensure the product quality.

[0019] The side plate is vertically arranged in the middle of the upper connecting plate, and a reinforcing rib plate is arranged between the upper connecting plate and the upper half of the side plate.

[0020] Compared with the existing setting of arranging rib plates on both sides of the entire side plate, on the premise of increasing the thickness of the side plate, arranging the reinforcing rib plate on the upper half of the side plate can not only ensure sufficient rigidity of the upper die, but also vacate the space in the lower half of the side plate to avoid interference with parts during the pressing process.

[0021] The die head is set as a spliced die head, including at least two die head monomers in close contact end to end.

[0022] In order to facilitate the installation of the die head and meet the working requirements, the die head is set as multiple spliced die head monomers, which is convenient for installation, saves manpower, occupies less volume, is convenient for management, can also adjust different die head lengths according to working needs, improves adaptability, has a wider application range, and further saves manufacturing costs.

[0023] Beneficial effects: By changing the traditional integral structure of the pressing die, the utility model separates the die head from the upper die, and assembles and disassembles the die head through a locking device. When applying different parts for pressing, only the corresponding model of the die head needs to be replaced, instead of replacing the upper die and the die head as a whole, which provides great convenience for workshop management. Compared with the upper die and the die head welded together, a single die head occupies less space and is easier to manage; at the same time, when replacing operations for different products, the efficiency is higher, and only the die head needs to be replaced.

[0024] Compared with the existing setting of arranging rib plates on both sides of the entire side plate, on the premise of increasing the thickness of the side plate, arranging the reinforcing rib plate on the upper half of the side plate can not only ensure sufficient rigidity of the upper die, but also vacate the space in the lower half of the side plate to avoid interference with parts during the pressing process. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0026] Figure 1 It is the overall pressing die structure diagram of the present utility model.

[0027] Figure 2 It is the side view of the pressing die structure of the present utility model.

[0028] Figure 3 It is the connection structure diagram of the die head and the upper die of the present utility model.

[0029] Figure 4 This is the structural diagram of the die head locking hole of the present utility model. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0033] As Figure 1 shown in FIGS. 3 and 4, a combined quick-change pressing die for a hydraulic press includes an upper die 1 and a die head 2. The upper die 1 includes side plates 11 and an upper connecting plate 12. The upper connecting plate 12 is connected to the output end of the hydraulic press. A connecting hole 13 is formed at the bottom of the side plate 11. The die head 2 is provided with a locking hole 21 corresponding to the position of the connecting hole 13. The side plate 11 and the die head 2 are detachably connected by a locking device 3 passing through the connecting hole 13 and the locking hole 21.

[0034] The utility model changes the traditional integrated structure of the pressing die, separates the die head 2 from the upper die 1, and assembles and disassembles the die head 2 through the locking device 3. When applying different parts for pressing, only the die head 2 of the corresponding model needs to be replaced, instead of replacing the upper die 1 and the die head 2 as a whole, which provides great convenience for workshop management. Compared with the upper die 1 and the die head 2 welded together, the single die head 2 occupies less space and is easier to manage. At the same time, when replacing operations are carried out for different products, the efficiency is higher, and only the die head 2 needs to be replaced.

[0035] The locking device 3 is a pneumatic locking pin. The inner diameters of the connecting hole 13 and the locking hole 21 are the same. The inner wall of the connecting hole 13 is provided with internal threads. A stepped surface 22 is provided at one end of the locking hole 21 away from the connecting hole 13. The upper half of the pneumatic locking pin is connected to the internal threads of the connecting hole 13 through external threads, and the ball provided at the lower half of the pneumatic locking pin is limited by the stepped surface 22.

[0036] Through the cooperation of the pneumatic locking pin and the stepped surface 22 in the locking hole 21, the replacement efficiency of the die head 2 can be further increased. Moreover, the contact friction between the pneumatic locking pin and the connecting hole 13 and the locking hole 21 is small, it is more durable, the maintenance is simple, and only the pneumatic locking pin needs to be replaced or the stepped surface 22 needs to be reprocessed when stability problems occur, which greatly improves the work efficiency and stability.

[0037] The locking device 3 is a fastening bolt. The connecting hole 13 is set as a smooth hole. The inner wall of the locking hole 21 is provided with internal threads. The fastening bolt passes through the connecting hole 13 and is connected to the internal threads of the locking hole 21 in a matching manner.

[0038] The die head 2 and the upper die 1 are connected into one body through the fastening bolt, which has high stability, simple operation, the operators are more proficient in this installation method, and the cost is relatively low.

[0039] An installation and unloading window 14 is opened at a position near the bottom of the side plate 11. A connecting hole 13 is opened at the bottom of the installation and unloading window 14. The locking device 3 is installed and disassembled through the installation and unloading window 14.

[0040] By opening the installation and unloading window 14, on the one hand, the lateral width occupied by the side plate 11 is reduced, avoiding interference with the product during the pressing process. On the other hand, enough vertical movement space is provided for the locking device 3 and enough operation space is provided for the operator, further improving the replacement efficiency of the die head 2.

[0041] A guiding groove 15 is provided at the bottom of the side plate 11. A sliding part 23 matching the guiding groove 15 is provided on one side of the die head 2 close to the guiding groove 15. The sliding part 23 is slidably connected to the inner wall of the guiding groove 15.

[0042] By setting the sliding part 23 and the guiding groove 15, the two cooperate to position the die head 2, making the installation of the die head 2 faster.

[0043] A sliding part 23 is provided at the bottom of the side plate 11. A guiding groove 15 matching the sliding part 23 is provided on one side of the die head 2 close to the sliding part 23. The sliding part 23 is slidably connected to the inner wall of the guiding groove 15.

[0044] As Figure 2 shown, guiding inclined surfaces 16 are provided on both sides of the side plate 11 close to the bottom, both inclined inwards.

[0045] In order to avoid interference between the part and the side plate 11 after the part reaches a certain angle during the profiling process, which affects the quality of the part, the guiding inclined surfaces 16 are provided to avoid part interference and ensure product quality.

[0046] The side plate 11 is vertically provided in the middle of the upper connecting plate 12. A reinforcing rib plate 4 is provided between the upper connecting plate 12 and the upper half of the side plate 11.

[0047] Compared with the existing setting of arranging rib plates on both sides of the entire side plate 11, on the premise of increasing the thickness of the side plate 11, the reinforcing rib plate 4 is arranged on the upper half of the side plate 11, which can not only ensure sufficient rigidity of the upper die 1, but also vacate the space in the lower half of the side plate 11 to avoid interference with the part during the profiling process.

[0048] The die head 2 is set as a spliced die head 2, including at least two die head monomers in close contact end to end.

[0049] For the convenience of installing the die head 2 and for work requirements, the die head 2 is set as multiple spliced die head monomers, which is convenient for installation, saves manpower, occupies less volume, is convenient for management, can also adjust the length of different die heads 2 according to work needs, improves adaptability, has a wider application range, and further saves manufacturing costs.

[0050] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic press combined quick-change die, comprising an upper die (1) and a die head (2), wherein the upper die (1) comprises a side plate (11) and an upper connecting plate (12), wherein the upper connecting plate (12) is connected to an output end of the hydraulic press, and wherein: The side plate (11) has a connecting hole (13) at the bottom, the die head (2) has a locking hole (21) corresponding to the position of the connecting hole (13), and the side plate (11) and the die head (2) are detachably connected via a locking device (3) that passes through the connecting hole (13) and the locking hole (21).

2. The hydraulic press combined quick-change die according to claim 1, characterized in that: The locking device (3) is a pneumatic locking pin, the connecting hole (13) and the locking hole (21) have the same inner diameter, the inner wall of the connecting hole (13) is provided with an internal thread, the locking hole (21) is provided with a step surface (22) at one end away from the connecting hole (13), the upper half of the pneumatic locking pin is matched and connected with the internal thread of the connecting hole (13) via an external thread, and a ball bearing provided on the lower half of the pneumatic locking pin is limited by the step surface (22).

3. The hydraulic press combined quick-change die according to claim 1, characterized in that: The locking device (3) is a fastening bolt, the connecting hole (13) is arranged as a smooth hole, the inner wall of the locking hole (21) is provided with an internal thread, and the fastening bolt passes through the connecting hole (13) and is matched with the internal thread of the locking hole (21) for connection.

4. The hydraulic press combined quick-change die according to claim 1, characterized in that: The side plate (11) is provided with a loading and unloading window (14) near the bottom, and a connecting hole (13) is provided at the bottom of the loading and unloading window (14). The locking device (3) is installed and removed through the loading and unloading window (14).

5. The hydraulic press combined quick-change die according to claim 1, characterized in that: A guide groove (15) is provided at the bottom of the side plate (11), and a sliding portion (23) matching the guide groove (15) is provided on a side of the die head (2) close to the guide groove (15), wherein the sliding portion (23) is slidably connected to the inner wall of the guide groove (15).

6. The hydraulic press combined quick-change die according to claim 1, characterized in that: A sliding portion (23) is provided at the bottom of the side plate (11), and a guide groove (15) matching the sliding portion (23) is provided on a side of the die head (2) close to the sliding portion (23), wherein the sliding portion (23) is slidably connected to the inner wall of the guide groove (15).

7. The hydraulic press combined quick-change die according to claim 5 or 6, characterized in that: Both sides of the side plate (11) close to the bottom are provided with inward guiding inclined surfaces (16).

8. The hydraulic press combined quick-change die according to claim 1, characterized in that: The side plate (11) is vertically arranged in the middle of the upper connecting plate (12), and a reinforcing rib plate (4) is arranged between the upper connecting plate (12) and the upper half of the side plate (11).

9. The hydraulic press combined quick-change die according to claim 1, characterized in that: The die head (2) is configured as a spliced ​​die head (2), comprising at least two die head monomers that are in close end-to-end contact.

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