Efficient maintenance type punching die

Abstract

The utility model relates to the technical field of dies, and provides an efficient maintenance type punching die which comprises a lower die set and an upper die set, the lower die set comprises a lower die base, the upper surface of the lower die base is fixedly connected with a lower die plate, a plurality of first guide columns penetrate through the lower die base and the lower die plate, and the portions, protruding out of the lower die plate, of the first guide columns are sleeved with first sliding sleeves; the lower die holder is provided with a plurality of second guide columns for guiding when the die is opened and closed; the upper die set is arranged above the lower die set and comprises an upper die base, the lower surface of the upper die base is fixedly connected with an upper die plate, the upper die base is provided with a second guide hole, and a second guide sleeve is arranged on the inner wall of the second guide hole and used for being matched with the second guide column for use. A guide plate is arranged between the upper module and the lower module, and a plurality of first guide holes are formed in the guide plate and used for being matched with the first sliding sleeves for use.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a high-efficiency maintenance punching mold. Background Art

[0002] A punching mold is a key tool for realizing punching processing of sheet materials in the field of metal processing. One of the core structures of the punching mold is the guiding system, which consists of a guide pillar and a guide hole. They are respectively installed in the lower die and the upper die to ensure that the mold can be accurately aligned during the stamping process, maintaining the accuracy and consistency of punching. The tight fit between the guide pillar and the guide hole is crucial for the stability of the mold and the punching quality.

[0003] However, the punching molds of the prior art face some challenges during long-term use. The guide pillar and the guide hole will have relative sliding during the stamping process. This sliding friction will cause wear over time, thereby reducing the guiding accuracy and positioning accuracy of the mold. The wear problem not only affects the quality of the punching operation but also may cause premature failure of the mold. Once the guide pillar or the guide hole is severely worn, usually the entire template needs to be replaced, which not only increases the production cost but also increases the difficulty and complexity of maintenance. Therefore, improving the durability and maintenance efficiency of punching molds is an urgent problem to be solved in the current mold technology field. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a high-efficiency maintenance punching mold, including an upper die module and a lower die module. The upper die module is arranged above the lower die module. It is characterized in that the lower die module includes a lower die base, the upper surface of the lower die base is fixedly connected with a lower template, several first guide pillars penetrate through the lower die base and the lower template, a first sliding sleeve is sleeved on the part of the first guide pillar protruding from the lower template, a guide plate is arranged between the upper die module and the lower die module, and several first guide holes are opened in the guide plate for sliding connection with the first sliding sleeve.

[0005] Further, multiple circles of ball bearings are arranged on the outer wall of the first sliding sleeve to reduce friction.

[0006] Further, two adjacent circles of ball bearings on the outer wall of the first sliding sleeve are arranged in a staggered manner in the up and down directions.

[0007] Further, the number of the first guide pillars is preferably four.

[0008] Further, several second guide pillars are arranged on the lower die base to play a guiding function when the mold is opened and closed.

[0009] Further, a first guide sleeve is nested in the first guide hole, and the first guide sleeve is in sliding connection with the first sliding sleeve.

[0010] Furthermore, the upper die set includes an upper die base. The lower surface of the upper die base is fixedly connected with an upper template. The upper die base is provided with a second guide hole, and the inner wall of the second guide hole is provided with a second guide bushing for cooperating with the second guide post.

[0011] Furthermore, a second sliding sleeve is sleeved on the upper end of the second guide post. The outer wall of the second sliding sleeve is provided with multiple circles of ball bearings to reduce friction. Adjacent two circles of ball bearings are arranged in a staggered manner in the up and down directions.

[0012] Furthermore, several elastic elements are provided between the guide plate and the upper template.

[0013] Furthermore, the upper template is provided with punching needles for punching operations. The guide plate and the lower template are provided with holes corresponding to the punching needles for the punching needles to pass through during punching operations.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Significantly improved the durability and reliability of the punching die.

[0016] In traditional punching dies, the sliding friction between the guide post and the guide hole is a major cause of wear and accuracy decline. In the punching die of the present utility model, by setting a sliding sleeve with ball bearings, the sliding friction is transformed into rolling friction, which not only reduces the frictional force but also effectively reduces the heat generated by friction, thereby slowing down the wear rate and extending the service life of the die.

[0017] 2. Significantly reduced the maintenance cost and maintenance difficulty of the punching die.

[0018] When the sliding sleeve needs to be replaced due to wear after long-term use, the operation is simple. There is no need to replace the entire guide post or the template containing the guide hole, which greatly reduces the maintenance cost. This design not only reduces the burden of maintenance work but also makes the maintenance of the die more economical and efficient. In addition, the easily replaceable sliding sleeve also reduces the downtime caused by maintenance, improves the production efficiency, and thus brings higher economic benefits to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for describing the specific embodiments or the prior art. Obviously, the following drawings are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of a highly efficient maintenance type punching die;

[0021] Figure 2 is an exploded view of the structure of a highly efficient maintenance type punching die;

[0022] Figure 3 is a schematic diagram of the first sliding sleeve structure;

[0023] Figure 4 is a schematic diagram of the guide plate structure.

[0024] The reference signs in the accompanying drawings are: 1, upper die set; 11, upper die base; 111, second guide hole; 12, upper template; 2, lower die set; 21, lower template; 22, lower die base; 3, guide plate; 31, first guide hole; 4, elastic element; 5, second guide post; 6, second guide sleeve; 7, first guide post; 8, first sliding sleeve; 9, second sliding sleeve. Detailed implementation manners

[0025] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the technical solutions in the detailed implementation manners of the present utility model are clearly and completely described below to further illustrate the present utility model. Obviously, the described detailed implementation manners are only a part of the implementation manners of the present utility model, rather than all the styles.

[0026] As Figures 1 to 4 shown, a highly efficient maintenance type punching die of this example includes:

[0027] Upper die set 1, the upper die set 1 includes an upper die base 11, and the lower surface of the upper die base 11 is fixedly connected with an upper template 12.

[0028] Lower die set 2, the lower die set 2 is arranged below the upper die set 1, and the lower die set 2 includes a lower die base 22, and the upper surface of the lower die base 22 is fixedly connected with a lower template 21.

[0029] A guide plate 3 is arranged between the upper die set 1 and the lower die set 2, and a plurality of elastic elements 4 are arranged between the guide plate 3 and the upper template 12 to play a buffering role during punching.

[0030] The upper template 12 is provided with a punching needle for punching operations, and the guide plate 3 and the lower template 21 are provided with holes corresponding to the punching needle for the punching needle to pass through during punching operations.

[0031] The guide plate 3 is provided with four first guide holes 31, and the lower template 21 and the lower die base 22 are also provided with corresponding through holes. Four first guide posts 7 are inserted into the through holes of the lower die base 22 and the lower template 21 from bottom to top. The part of the first guide post 7 protruding from the lower template 21 is sleeved with a first sliding sleeve 8. The outer wall of the first sliding sleeve 8 is provided with multiple circles of balls. The adjacent two circles of balls on the outer wall of the first sliding sleeve 8 are arranged in a dislocation in the up and down directions. A first guide sleeve is nested in the first guide hole 31, and the first guide sleeve is in sliding connection with the first sliding sleeve 8 in a matching manner.

[0032] When the mold is closed, the guide plate 3 will move downward, and the first guide post 7 will pass through the first guide hole 31. By setting the first sliding sleeve 8, the rolling friction between the first sliding sleeve 8 and the inner wall of the first guide sleeve can replace the sliding friction between the first guide post 7 and the inner wall of the first guide sleeve, reducing the friction force and wear. Even if the positioning accuracy decreases due to wear after long-term use, the first sliding sleeve 8 can be directly replaced, avoiding the replacement of other components, reducing the cost of mold use, and extending the service life of the mold.

[0033] The lower die base 22 is provided with four second guide posts 5, the upper die base 11 is provided with second guide holes 111, and the inner wall of the second guide holes 111 is provided with second guide sleeves 6. The second guide posts 5 and the second guide sleeves 6 are used in cooperation to play a guiding function when the mold is opened and closed. Correspondingly, the upper end of the second guide post 5 is sleeved with a second sliding sleeve 9, and the structure of the second sliding sleeve 9 is the same as that of the first sliding sleeve 8, which can further reduce the friction force when the mold is opened and closed.

[0034] In the initial state of the mold, there is a certain space between the guide plate 3 and the lower template 21, and this space can allow the material to be punched to pass through. When the material to be punched enters this space, the driving member drives the upper die base 11, the upper template 12 and the guide plate 3 to move downward. After the guide plate 3 presses on the material to be punched, the upper die base 11 and the upper template 12 continue to move downward. At this time, the elastic element 4 is in a compressed state. After the punching is completed, the upper die base 11 and the upper template 12 move upward. At this time, the elastic element 4 rebounds continuously. After the elastic element 4 finishes rebounding, the upper die base 11, the upper template 12 and the guide plate 3 move upward and return to the initial state of the mold to prepare for the next punching.

[0035] The above describes the main technical features, basic principles and related advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary specific embodiments, and can be implemented in other specific forms without departing from the concept or basic features of the present invention. Therefore, from any point of view, the above specific embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0036] In addition, it should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 high-efficiency maintenance-type punching die, comprising an upper die set (1) and a lower die set (2), wherein the upper die set (1) is disposed above the lower die set (2), and characterized in that: The lower die assembly (2) comprises a lower die base (22), the upper surface of which is fixedly connected to a lower die plate (21), a plurality of first guide posts (7) passing through the lower die base (22) and the lower die plate (21), a first sliding sleeve (8) being sleeved on a portion of the first guide posts (7) protruding from the lower die plate (21), a guide plate (3) being arranged between the upper die assembly (1) and the lower die assembly (2), the guide plate (3) being provided with a plurality of first guide holes (31) for being slidably connected with the first sliding sleeve (8).

2. According to the high-efficiency maintenance-type punching die of claim 1, it is characterized in that: The outer wall of the first sliding sleeve (8) is provided with multiple circles of balls to reduce friction.

3. A high-efficiency maintenance-type punching die according to claim 2, characterized in that: Two adjacent circles of balls on the outer wall of the first sliding sleeve (8) are arranged in a staggered manner in the up-and-down direction.

4. The high-efficiency maintenance-type punching die according to claim 1, characterized in that: The number of the first guide pillars (7) is four.

5. The high-efficiency maintenance-type punching die according to claim 1, characterized in that: The lower die seat (22) is provided with a plurality of second guide pillars (5) for guiding when the die is opened and closed.

6. The high-efficiency maintenance-type punching die according to claim 1, characterized in that: A first guide sleeve is nested in the first guide hole (31), and the first guide sleeve is slidably connected with the first sliding sleeve (8).

7. The high-efficiency maintenance-type punching die according to claim 5, characterized in that: The upper die assembly (1) comprises an upper die seat (11), the lower surface of the upper die seat (11) is fixedly connected to an upper die plate (12), the upper die seat (11) is provided with a second guide hole (111), and the inner wall of the second guide hole (111) is provided with a second guide sleeve (6) for use in conjunction with a second guide column (5).

8. The high-efficiency maintenance-type punching die according to claim 5, characterized in that: The upper end of the second guide column (5) is sleeved with a second sliding sleeve (9), and the outer wall of the second sliding sleeve (9) is provided with multiple circles of balls to reduce friction, and two adjacent circles of balls are staggered in the vertical direction.

9. The high-efficiency maintenance-type punching die according to claim 7, characterized in that: A plurality of elastic elements (4) are arranged between the guide plate (3) and the upper template (12).

10. The high-efficiency maintenance-type punching die according to claim 7, characterized in that: The upper template (12) is provided with a punching needle for punching operation, and the guide plate (3) and the lower template (21) are provided with holes corresponding to the punching needle for the punching needle to pass through during the punching operation.

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