Novel blanking die

Abstract

The utility model provides a novel blanking die which comprises an upper die, a lower die, a lower die and a lower die, the upper die is provided with a mounting part, and the mounting part is provided with a cutter block assembly for cutting; the lower mold is arranged right opposite to the upper mold, the lower mold is provided with a positioning mechanism used for positioning a plate, the positioning mechanism comprises a fixing plate and a positioning rod, the fixing plate is provided with a connecting hole, the positioning rod is arranged in the connecting hole in a penetrating mode, the lower mold is further provided with an avoiding hole used for containing the positioning rod, and the avoiding hole is located under the connecting hole; the beneficial effects brought by the technical scheme of the utility model at least comprise that the positioning mechanism is arranged on the lower die, an avoiding hole is not formed in the cutter, the avoiding hole is formed in the lower die, and when the cutter assembly is in contact with the positioning rod, the contact part is arranged on the side surface, close to the lower die, of the cutter block assembly. The cutter assembly presses the positioning rod into the receding hole of the lower die, the problem that the strength of the cutter is weak due to the fact that the cutter is provided with the receding hole can be avoided, and therefore the problem that the cutter jumps is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of mold design, and in particular to a novel blanking mold. Background Art

[0002] With the continuous rise in prices of resource-based materials and labor costs, competition in the automotive market has become increasingly fierce, and reducing production costs has become one of the important competitive factors.

[0003] The process division of parts often includes blanking, drawing or forming, trimming and other processes. The more processes there are, the higher the development cost. The blanks used in the drawing die are usually single blanks, which are generally blanked or ordered by the blanking die. This cost is relatively high. The drawing die is a die used for the stretching of metal materials. It usually consists of two parts: the upper die and the lower die. There is a space between the upper die and the lower die for placing metal materials. As an important auxiliary process of the forming or drawing process, the blanking die ensures its formability while maximizing the material utilization rate, which is of great significance to reducing the production cost of parts.

[0004] The tool of the blanking die has an avoidance hole set in the tool because of the avoidance positioning device, which makes the tool weak in strength and further causes the problem of blade jumping. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to provide a new blanking die for solving the problem that the tool of the blanking die in the prior art is weak in strength due to the avoidance positioning device and the avoidance hole set in the tool, thereby further causing the problem of blade jumping.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a new blanking die, comprising:

[0007] An upper mold, wherein the upper mold is provided with a mounting portion, and a knife block assembly for cutting is provided on the mounting portion;

[0008] A lower mold, the lower mold is arranged opposite to the upper mold, the lower mold is provided with a positioning mechanism for positioning the plate, the positioning mechanism comprises a fixing plate and a positioning rod, the fixing plate is provided with a connecting hole, the positioning rod is inserted into the connecting hole, and the lower mold is further provided with an avoidance hole for accommodating the positioning rod, the avoidance hole is located directly below the connecting hole;

[0009] Wherein, a contact portion is provided on the side of the knife block assembly close to the lower mold, and when the upper mold and the lower mold are closed, the contact portion contacts the top of the positioning rod to push the positioning rod into the avoidance hole.

[0010] Optionally, a resetting component for resetting the positioning rod is further provided between the fixing plate and the positioning rod.

[0011] Optionally, the fixing plate is provided with an adjustment groove along its length direction, the adjustment groove is a waist-shaped structure, a fixing bolt is passed through the adjustment groove, and the fixing plate is fixed to the lower mold by the fixing bolt.

[0012] Optionally, two adjusting slots are provided, and the two adjusting slots are arranged in parallel.

[0013] Optionally, the reset assembly includes a limiting portion and a reset spring, a limiting hole is provided on the fixed plate, the limiting portion is provided at one end of the positioning rod close to the contact portion, the limiting hole is provided cocentrically with the connecting hole, and the limiting hole is provided on the side of the fixed plate close to the upper mold, one end of the reset spring is provided in the connecting hole, and the other end of the reset spring is connected to the limiting portion.

[0014] Optionally, the limiting portion includes a positioning layer and a contact layer, the positioning layer is arranged close to the positioning rod, the positioning layer is a cylindrical structure, the contact layer is a truncated cone structure, and the positioning layer and the contact layer are fixedly arranged on the positioning rod.

[0015] Optionally, the positioning layer and the contact layer are both hollow structures, the positioning rod is provided with a mounting portion, the mounting portion is provided at one end close to the limiting portion, the mounting portion and the positioning rod form a mounting step, the positioning layer and the contact layer are sleeved on the mounting portion, and the mounting portion is also provided with fixing bolts for fixing the contact layer.

[0016] Optionally, a limiting nut is further provided at one end of the positioning rod away from the upper mold, and the outer diameter of the limiting nut is larger than the diameter of the connecting hole.

[0017] Optionally, a mounting hole is further provided on the fixing plate, and the mounting hole and the connecting hole are respectively located at opposite ends of the mounting hole.

[0018] Optionally, one end of the fixing plate where the connecting hole is provided has a semicircular structure.

[0019] As described above, the beneficial effects brought about by the technical solution in the utility model include at least: a positioning mechanism is set in the lower mold, and the avoidance hole is not set in the tool, but the avoidance hole is set on the lower mold. When the tool assembly contacts the positioning rod, the tool assembly presses the positioning rod into the avoidance hole of the lower mold, which can avoid the problem of tool blade jumping due to the avoidance hole being set in the tool, thereby avoiding the problem of tool blade jumping, improving the service life of the tool, and avoiding production stoppage caused by tool blade jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of a blanking die showing an exemplary embodiment of the present invention;

[0021] Figure 2 Shown as an exemplary embodiment of the present invention Figure 1 Middle A is an enlarged schematic diagram;

[0022] Figure 3 Shown is a schematic diagram of the positioning mechanism structure of an exemplary embodiment of the present utility model.

[0023] Part Number Description

[0024] 1. Upper mold; 2. Knife block assembly; 3. Lower mold; 4. Positioning mechanism; 401. Fixed plate; 402. Positioning rod; 403. Connecting hole; 404. Reset assembly; 4041. Limiting part; 4042. Reset spring; 405. Adjusting slot; 406. Limiting hole; 5. Avoidance hole;. DETAILED DESCRIPTION

[0025] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0027] See also Figure 1 and Figure 2 The utility model provides a new blanking die, comprising:

[0028] An upper mold 1, wherein the upper mold 1 is provided with a mounting portion, and a knife block assembly 2 for cutting is provided on the mounting portion;

[0029] A lower mold 3, the lower mold 3 is arranged opposite to the upper mold 1, the lower mold 3 is provided with a positioning mechanism 4 for positioning the plate, the positioning mechanism 4 includes a fixing plate 401 and a positioning rod 402, the fixing plate 401 is provided with a connecting hole 403, the positioning rod 402 is inserted into the connecting hole 403, the lower mold 3 is further provided with an avoidance hole 5 for accommodating the positioning rod 402, and the avoidance hole 5 is located directly below the connecting hole 403;

[0030] Among them, the blade block assembly 2 is provided with a contact portion on the side close to the lower mold 3. When the upper mold 1 and the lower mold 3 are closed, the contact portion contacts the top of the positioning rod 402 to push the positioning rod 402 into the avoidance hole 5.

[0031] In one embodiment of the present application, specifically, the blanking die includes an upper die 1 and a lower die 3, a knife block assembly 2 is arranged at the bottom of the upper die 1, the bottom of the knife block assembly 2 is a contact portion, the lower die 3 is located below the upper die 1, and a positioning mechanism 4 is arranged on the surface of the lower die 3 facing the upper die 1, the positioning mechanism 4 includes a fixing plate 401 and a positioning rod 402, the fixing plate 401 is fixedly mounted on the upper surface of the lower die 3, and a connecting hole 403 is also arranged on the fixing plate 401, and the connecting hole 403 is a through hole, and both ends of the connecting hole 403 penetrate the upper and lower ends of the fixing plate 401, The lower mold 3 is also provided with an avoidance hole 5, which is located directly below the connecting hole 403. When the plate is loaded, it is positioned by the positioning rod 402. After the positioning is completed, the molds are closed for cutting. When the upper mold 1 and the lower mold 3 are closed, the knife block assembly 2 and the positioning rod 402 are in contact. The positioning rod 402 descends under the pressure of the knife block assembly 2, and the lower part of the positioning rod 402 enters the avoidance hole 5. There is no need to open a hole in the knife block assembly 2 for avoidance, so as to avoid the knife block assembly 2 from having weak strength due to insufficient margin, thereby further causing the problem of blade jumping.

[0032] See also Figure 2 and Figure 3 A reset component 404 for resetting the positioning rod 402 is also provided between the fixing plate 401 and the positioning rod 402 .

[0033] In one embodiment of the present application, specifically, a reset assembly 404 is provided between the fixed plate 401 and the positioning rod 402 , and when the upper mold 1 and the lower mold 3 are separated, the positioning rod 402 rises from the avoidance hole 5 under the action of the reset assembly 404 and returns to the position for positioning the plate.

[0034] In one embodiment of the present application, specifically, the fixed plate 401 is provided with an adjustment groove 405 along its length direction, the adjustment groove 405 is a waist-shaped structure, a fixing bolt is passed through the adjustment groove 405, and the fixed plate 401 is fixed to the lower mold 3 by the fixing bolt. When the position of the fixed plate 401 needs to be adjusted, the fixing bolt is loosened to allow the fixed plate 401 to slide, and when the fixed plate 401 moves to the specified position, the fixing bolt is fixed again.

[0035] There are two adjustment slots 405 , and the two adjustment slots 405 are arranged in parallel.

[0036] In one embodiment of the present application, specifically, the reset assembly 404 includes a limiting portion 4041 and a reset spring 4042, a limiting hole 406 is provided on the fixed plate 401, the limiting portion 4041 is provided at one end of the positioning rod 402 close to the contact portion, the limiting hole 406 is provided cocentrically with the connecting hole 403, and the limiting hole 406 is provided on the side of the fixed plate 401 close to the upper mold 1, one end of the reset spring 4042 is provided in the connecting hole 403, and the other end of the reset spring 4042 is connected to the limiting portion 4041, after the spring is compressed, after the upper mold 1 and the lower mold 3 are separated, the positioning rod 402 is supported upward under the action of the spring to reset the positioning rod 402.

[0037] In one embodiment of the present application, specifically, the limiting portion 4041 includes a positioning layer and a contact layer, the positioning layer is arranged close to the positioning rod 402, the positioning layer is a cylindrical structure, the contact layer is a truncated cone structure, and the positioning layer and the contact layer are fixedly arranged on the positioning rod 402.

[0038] In one embodiment of the present application, specifically, the positioning layer and the contact layer are both hollow structures, the positioning rod 402 is provided with a mounting portion, the mounting portion is arranged at an end close to the limiting portion 4041, the mounting portion and the positioning rod 402 form a mounting step, the positioning layer and the contact layer are sleeved on the mounting portion, and the mounting portion is also provided with fixing bolts for fixing the contact layer.

[0039] In one embodiment of the present application, specifically, a limiting nut is further provided at one end of the positioning rod 402 away from the upper mold 1, and the outer diameter of the limiting nut is larger than the diameter of the connecting hole 403, so as to prevent the positioning rod 402 from rushing out of the connecting hole 403 under the action of the elastic force of the return spring 4042, thereby causing damage to the device.

[0040] In an embodiment of the present application, specifically, a mounting hole is further provided on the fixing plate 401 , and the mounting hole and the connecting hole 403 are respectively located at opposite ends of the mounting hole.

[0041] In one embodiment of the present application, specifically, one end of the fixing plate 401 where the connecting hole 403 is provided has a semicircular structure.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A new blanking die, characterized in that: include: An upper mold, wherein the upper mold is provided with a mounting portion, and a knife block assembly for cutting is provided on the mounting portion; A lower mold, the lower mold is arranged opposite to the upper mold, the lower mold is provided with a positioning mechanism for positioning the plate, the positioning mechanism comprises a fixing plate and a positioning rod, the fixing plate is provided with a connecting hole, the positioning rod is inserted into the connecting hole, and the lower mold is further provided with an avoidance hole for accommodating the positioning rod, the avoidance hole is located directly below the connecting hole; Wherein, a contact portion is provided on the side of the knife block assembly close to the lower mold, and when the upper mold and the lower mold are closed, the contact portion contacts the top of the positioning rod to push the positioning rod into the avoidance hole.

2. According to the new blanking die of claim 1, it is characterized by: A resetting component for resetting the positioning rod is also arranged between the fixing plate and the positioning rod.

3. According to the new blanking die of claim 1, it is characterized by: The fixing plate is provided with an adjustment groove along its length direction, the adjustment groove is a waist-shaped structure, a fixing bolt is passed through the adjustment groove, and the fixing plate is fixed to the lower mold through the fixing bolt.

4. According to the new blanking die of claim 3, it is characterized by: There are two adjusting slots, and the two adjusting slots are arranged in parallel.

5. According to the new blanking die of claim 2, it is characterized in that: The reset assembly includes a limiting portion and a reset spring. A limiting hole is provided on the fixed plate. The limiting portion is provided at one end of the positioning rod close to the contact portion. The limiting hole is provided cocentrically with the connecting hole, and the limiting hole is provided on the side of the fixed plate close to the upper mold. One end of the reset spring is provided in the connecting hole, and the other end of the reset spring is connected to the limiting portion.

6. According to the new blanking die of claim 5, it is characterized in that: The limiting part includes a positioning layer and a contact layer. The positioning layer is arranged close to the positioning rod. The positioning layer is a cylindrical structure, and the contact layer is a truncated cone structure. The positioning layer and the contact layer are fixedly arranged on the positioning rod.

7. A new blanking die according to claim 6, characterized in that: The interiors of the positioning layer and the contact layer are both hollow structures. The positioning rod is provided with a mounting portion, which is arranged at one end close to the limiting portion. The mounting portion and the positioning rod form a mounting step. The positioning layer and the contact layer are sleeved on the mounting portion, and the mounting portion is also provided with fixing bolts for fixing the contact layer.

8. A new blanking die according to claim 7, characterized in that: A limiting nut is also provided at one end of the positioning rod away from the upper mold, and the outer diameter of the limiting nut is greater than the diameter of the connecting hole.

9. According to the new blanking die of claim 4, it is characterized by: The fixing plate is also provided with a mounting hole, and the mounting hole and the connecting hole are respectively located at two opposite ends of the mounting hole.

10. The new blanking die according to claim 1, characterized in that: One end of the fixing plate provided with the connecting hole is a semicircular structure.

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