Cutting blade hot forging die

Abstract

The utility model relates to a cutting blade hot forging die in the technical field of cutting blade processing equipment, which comprises a forging die and a hot forging containing core, an oil hole is arranged in the center of the forging die, an annular oil groove I and an annular oil groove II are arranged on the outer side of the oil hole, the oil hole is communicated with the oil groove I through an oil duct I, and the oil groove I is communicated with the oil groove II through an oil duct II; a plurality of hot forging containing cores are evenly distributed between the first oil groove and the second oil groove in the circumferential direction, the first oil groove is communicated with the hot forging containing cores through third oil channels, and the second oil groove is communicated with the hot forging containing cores through fourth oil channels. According to the utility model, a plurality of hot forging operations can be simultaneously carried out, the production efficiency is improved, when one hot forging containing core is damaged, the use of other hot forging containing cores is not influenced, the whole forging die does not need to be replaced, the operation is simple, and the efficiency is high; the forging die is long in service life and low in cost, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting disc processing equipment, and particularly relates to a hot forging die for cutting discs. Background Art

[0002] During the production process of cutting discs, hot forging dies are required for processing. The structures of the existing hot forging dies are relatively single, and they are prone to fatigue, resulting in cracking damage and thermal wear, leading to a short service life and greatly reducing work efficiency. Chinese Patent with publication number CN109794572A discloses a hot forging die, which includes a forging die, a hot forging core, an oil groove, and a heat dissipation groove. The hot forging core is arranged in the middle of the forging die. An oil groove is opened on the forging die to connect with the hot forging core, and a plurality of oil holes are arranged on the forging die and are communicated with the oil groove. A cover is arranged on each single oil hole, and a heat dissipation groove is also opened on the forging die. Although the structure of this patent is simple, by arranging the oil groove and the heat dissipation groove around the hot forging core on the forging die, the lubrication and cooling effects are improved, and the service life of the die is effectively increased. However, only one hot forging core is arranged on one forging die. After it is damaged, the entire forging die needs to be replaced, with high costs and low efficiency. Therefore, a hot forging die for cutting discs is needed to solve the above technical problems. Summary of the Utility Model

[0003] To address the above-mentioned defects existing in the prior art, the utility model provides a hot forging die for cutting discs, which includes a forging die and a hot forging core. An oil hole is provided at the center of the forging die. An annular oil groove one and an annular oil groove two are arranged outside the oil hole. The oil groove one and the oil groove two are concentric. The oil hole is communicated with the oil groove one through an oil passage one, and the oil groove one is communicated with the oil groove two through an oil passage two;

[0004] An annular distribution zone is formed on the forging die between the oil groove one and the oil groove two. A plurality of hot forging cores are evenly distributed along the circumferential direction on the annular distribution zone. The oil groove one is communicated with the hot forging core through an oil passage three, and the oil groove two is communicated with the hot forging core through an oil passage four. By arranging a plurality of hot forging cores on the forging die, multiple hot forging operations can be carried out simultaneously, improving production efficiency. When one hot forging core is damaged, it does not affect the use of other hot forging cores, and there is no need to replace the entire forging die. The operation is simple and the efficiency is high; each hot forging core is supplied with oil from the same oil hole, reducing costs. The outer side of the hot forging core is communicated with the oil groove two through the oil passage four, and the inner side of the hot forging core is communicated with the oil groove one through the oil passage three. The diameter of the oil groove two is larger than that of the oil groove one, and the distance between each oil passage three is relatively large, reducing the impact of a large number of oil passages on the overall firmness of the forging die. On the premise of not affecting the full contact between the lubricating oil and the hot forging core, the service life of the forging die can be indirectly extended.

[0005] Preferably, a concave oil collecting ring is provided on the forging die around the periphery of the hot forging core, and both the third oil passage and the fourth oil passage communicate with the oil collecting ring. The setting of the oil collecting ring can increase the contact area and the amount of lubricating oil with the hot forging core, which is beneficial to the full contact between the lubricating oil and the hot forging core.

[0006] Preferably, semi-circular transition grooves are provided at the connection positions of the third oil passage and the fourth oil passage with the oil collecting ring. An oil outlet is provided on the straight side of the transition groove, and the oil outlet communicates with the oil collecting ring. An oil inlet is provided on the arc side of the transition groove, and the oil inlet communicates with the corresponding third oil passage or fourth oil passage. The width of the oil outlet is greater than that of the oil inlet, and a plug is provided at the oil inlet. The setting of the transition groove can not only ensure the smooth and efficient entry of the lubricating oil into the oil collecting ring, ensuring the effective contact between the lubricating oil and the hot forging core, but also when a single hot forging core fails or is in an idle state, only the oil inlet of the transition groove corresponding to the hot forging core needs to be plugged, which is simple and convenient to operate.

[0007] Preferably, the hot forging core communicates with the second oil sump through a plurality of fourth oil passages, and this setting can further ensure the effective contact between the lubricating oil and the hot forging core.

[0008] The present utility model further includes other components that can enable a cutting blade hot forging die to be used normally, which are all conventional technical means in the art. In addition, the devices or components not defined in the present utility model, such as the hot forging core, the first oil sump, the second oil sump, the first oil passage, the second oil passage, the third oil passage, the fourth oil passage, the oil hole, the plug, etc. all adopt conventional technical means and conventional equipment in the art.

[0009] The beneficial effects of the present utility model are as follows: Multiple hot forging operations can be carried out simultaneously, improving production efficiency. When one hot forging core is damaged, it does not affect the use of other hot forging cores, and there is no need to replace the forging die as a whole. The operation is simple and efficient; the structural distribution of each oil sump and oil passage reduces the impact on the firmness of the forging die without affecting the full contact between the lubricating oil and the hot forging core, indirectly extending the service life of the forging die; the cost is reduced and the production efficiency is improved. Description of the Drawings

[0010] The present utility model will be further described below with reference to the drawings and embodiments.

[0011] Figure 1 It is a schematic structural diagram of a cutting blade hot forging die in an embodiment of the present utility model;

[0012] Figure 2 It is Figure 1 An enlarged view of part A in

[0013] In the figure: 1. Forging die; 2. Hot forging core; 3. Second oil groove; 4. First oil groove; 5. Oil hole; 6. Second oil passage; 7. First oil passage; 8. Fourth oil passage; 9. Third oil passage; 10. Cooling hole; 11. Oil collecting ring; 12. Transition groove; 13. Plug. Detailed implementation mode

[0014] The present invention will be clearly described below in conjunction with the attached drawings in the embodiments of the present invention and specific embodiments. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

[0015] Embodiment

[0016] As Figure 1-2 shown, the present invention provides a cutting piece hot forging die, including a forging die 1 and a hot forging core 2. An oil hole 5 is provided at the center of the forging die 1, and cooling holes 10 are provided at the four corners of the forging die 1. An annular first oil groove 4 and an annular second oil groove 3 are provided outside the oil hole 5. The first oil groove 4 and the second oil groove 3 are concentric. The oil hole 5 is communicated with the first oil groove 4 through a first oil passage 7, and the first oil groove 4 is communicated with the second oil groove 3 through a second oil passage 6;

[0017] An annular distribution belt is formed on the forging die 1 between the first oil groove 4 and the second oil groove 3. Three hot forging cores 2 are evenly distributed along the circumferential direction on the annular distribution belt. The first oil groove 4 is communicated with the hot forging core 2 through a third oil passage 9, and the second oil groove 3 is communicated with the hot forging core 2 through a fourth oil passage 8. By providing three hot forging cores 2 on the forging die 1, hot forging operations can be carried out simultaneously, improving production efficiency. When one hot forging core 2 is damaged, it does not affect the use of other hot forging cores 2, and there is no need to replace the forging die 1 as a whole, with simple operation and high efficiency; each hot forging core 2 is supplied with oil from the same oil hole 5, reducing costs. The outside of the hot forging core 2 is communicated with the second oil groove 3 through a fourth oil passage 8, and the inside of the hot forging core 2 is communicated with the first oil groove 4 through a third oil passage 9. The diameter of the second oil groove 3 is larger than that of the first oil groove 4, and the distance between each third oil passage 9 is larger, reducing the influence of more oil passages on the overall firmness of the forging die 1. On the premise of not affecting the full contact between the lubricating oil and the hot forging core 2, the service life of the forging die 1 can be indirectly extended.

[0018] An annular concave oil collecting ring 11 is provided on the forging die 1 outside the periphery of the hot forging core 2. The third oil passage 9 and the fourth oil passage 8 are both communicated with the oil collecting ring 11. The setting of the oil collecting ring 11 can increase the contact area and oil volume between the lubricating oil and the hot forging core 2, which is beneficial to the full contact between the lubricating oil and the hot forging core 2.

[0019] Both the connection points of the oil passage three 9 and the oil passage four 8 with the oil collecting ring 11 are provided with semi-circular transition grooves 12. An oil outlet is provided on the straight side of the transition groove 12, and the oil outlet is communicated with the oil collecting ring 11. An oil inlet is provided on the arc side of the transition groove 12, and the oil inlet is communicated with the corresponding oil passage three 9 or oil passage four 8. The width of the oil outlet is greater than the width of the oil inlet, and the width of the oil outlet is equal to the diameter of the transition groove. A plug 13 is provided at the oil inlet, and when the forging die is in normal use, each plug is opened. The setting of the transition groove 12 can not only ensure the smooth and efficient entry of the lubricating oil into the oil collecting ring 11 and ensure the effective contact between the lubricating oil and the hot forging core 2, but also when a single hot forging core 2 fails or is in an idle state, only the oil inlet of the transition groove 12 corresponding to the hot forging core 2 needs to be plugged, which is simple and convenient to operate.

[0020] The hot forging core 2 is communicated with the oil sump two 3 through three oil passages four 8, and this setting can further ensure the effective contact between the lubricating oil and the hot forging core 2.

[0021] Working principle: The lubricating oil enters the oil sump one and the oil sump two from the oil hole, and then enters the corresponding hot forging core through the oil passage three and the oil passage four, so that the lubricating oil is in full contact with the hot forging core, and the lubricating and cooling effects are remarkable. When multiple hot forging cores 2 are arranged on the forging die 1, hot forging operations can be carried out simultaneously, improving the production efficiency. When one hot forging core 2 is damaged, it does not affect the use of other hot forging cores 2, and there is no need to replace the forging die 1 as a whole, which is simple and efficient to operate; each hot forging core 2 is supplied with oil by the same oil hole 5, reducing the cost. The outer side of the hot forging core 2 is communicated with the oil sump two 3 through the oil passage four 8, and the inner side of the hot forging core 2 is communicated with the oil sump one 4 through the oil passage three 9. The diameter of the oil sump two 3 is greater than the diameter of the oil sump one 4, and the distance between the oil passages three 9 is relatively large, reducing the influence of more oil passages on the overall firmness of the forging die 1. On the premise of not affecting the full contact between the lubricating oil and the hot forging core 2, the service life of the forging die 1 can be indirectly extended.

[0022] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hot forging die for a cutting blade, comprising a forging die and a hot forging core, characterized in that: An oil hole is provided at the center of the forging die, and an annular oil groove 1 and an annular oil groove 2 are provided outside the oil hole, the oil groove 1 and the oil groove 2 are cocentric, the oil hole is connected with the oil groove 1 through the oil passage 1, and the oil groove 1 is connected with the oil groove 2 through the oil passage 2; The forging die between the oil groove 1 and the oil groove 2 forms an annular distribution zone, and a plurality of hot forging cores are evenly distributed along the circumference of the annular distribution zone. The oil groove 1 is connected to the hot forging core through the oil channel 3, and the oil groove 2 is connected to the hot forging core through the oil channel 4.

2. A hot forging die for cutting blades according to claim 1, characterized in that: A circle of concave oil collecting ring is arranged on the forging die at the periphery of the hot forging core, and the oil passage three and the oil passage four are both connected with the oil collecting ring.

3. A hot forging die for cutting blades according to claim 2, characterized in that: A semicircular transition groove is provided at the connection point between the oil channel three and the oil channel four and the oil collecting ring. An oil outlet is provided on the straight side of the transition groove, and the oil outlet is connected to the oil collecting ring. An oil inlet is provided on the arc side of the transition groove, and the oil inlet is connected to the corresponding oil channel three or oil channel four.

4. A hot forging die for cutting blades according to claim 1, characterized in that: The hot forging core is connected to the oil tank 2 through a plurality of oil passages 4.

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