Die for producing high-strength explosion-proof hammer

Abstract

The utility model belongs to the technical field of hammer forging dies, and particularly relates to a die for producing a high-strength explosion-proof hammer, which comprises a fixed table, a support column is fixedly mounted at the top of the fixed table, a butt joint column is fixedly mounted at the top of the support column, and a connecting plate is slidably mounted on the outer surface of the butt joint column. A lower die is fixedly installed at the top of the fixing table, an upper die is fixedly installed at the bottom of the connecting plate, and a cylindrical hammer groove, a conical hammer groove and a hammer head notch are formed in the top of the lower die and the bottom of the upper die. The cylindrical hammer groove, the conical hammer groove and the hammerhead notch which correspond to each other are formed in the middle of the upper die and the middle of the lower die, so that a worker can place heated hammerhead blanks into the cylindrical hammer groove, the conical hammer groove and the hammerhead notch for forging through a clamp, and hammerheads of different shapes at the two ends of the hammerhead can be forged at a time; the forging time of the hammer head is greatly prolonged, and blank cooling caused by hammer head transferring is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of hammer forging mold technology, specifically a mold for producing high-strength explosion-proof hammers. Background Technology

[0002] An explosion-proof hammer is a special-purpose tool mainly used for striking operations in hazardous environments with flammable and explosive gases, dust, etc. It does not easily generate sparks when rubbing or colliding with other objects and has good explosion-proof performance.

[0003] When processing the hammerhead of the explosion-proof hammer, a suitable steel billet is selected according to the size and weight of the hammerhead and placed into the heating device to be heated to a suitable forging temperature. After heating, the hammerhead billet is placed on the hammerhead mold, and the upper mold is driven by the stamping device to press the lower mold, forging the hammerhead billet into the shape of the hammerhead.

[0004] Hammer head molds consist of an upper mold and a lower mold. The hammer head shape is forged by cutting a hole between the upper and lower molds. However, the two ends of the hammer head may have different shapes (circular, cylindrical, conical, etc.). When the two ends of the hammer head are cylindrical or conical, it is impossible to precisely control the flow lines of the hammer head metal by cutting the shape in one forging. This may lead to local metal flow line disorder, affecting the quality and service life of the hammer head. Therefore, when forging hammer heads with different shapes at both ends, multiple molds are required to stamp and forge the two ends of the hammer head separately. However, transporting the hammer head to different molds for forging is time-consuming, and the internal temperature of the hammer head will drop, affecting the subsequent quality and service life of the hammer head. Therefore, to address the above problems, a mold for producing high-strength explosion-proof hammers is proposed. Summary of the Invention

[0005] To overcome the shortcomings of existing technology and address the problems of existing equipment, this utility model proposes a mold for producing high-strength explosion-proof hammers.

[0006] The technical solution adopted by this utility model to solve its technical problem is a mold for producing high-strength explosion-proof hammers, including a fixed platform, a support column fixedly installed on the top of the fixed platform, a connecting column fixedly installed on the top of the support column, a connecting plate slidably installed on the outer surface of the connecting column, a lower mold fixedly installed on the top of the fixed platform, an upper mold fixedly installed on the bottom of the connecting plate, and a cylindrical hammer groove, a conical hammer groove, and a hammer head slot opened on the top of the lower mold and the bottom of the upper mold, for forging the two ends of the hammer head respectively. An ejection assembly is provided on the top of the fixed platform.

[0007] The ejection assembly includes a mounting block with a hole at the top. An annular groove extending into the interior of the fixed platform is formed at the bottom of the inner wall of the hole. A compression spring is installed at the bottom of the inner wall of the annular groove. A stop plate is installed at the top of the compression spring. A sliding sleeve fitted onto the outside of the compression spring is installed at the bottom of the stop plate.

[0008] Preferably, the bottom of the sliding sleeve is inserted into the interior of the annular groove, and the mounting block is disposed on the front side of the lower mold.

[0009] Preferably, there are two ejector components, which are arranged in a linear array on the top of the fixed platform, and are respectively located on the front of the cylindrical hammer groove and the conical hammer groove.

[0010] Preferably, the lower mold has a hammer head through-hole at the top, and the upper mold has a cutting edge assembly fixedly installed at the bottom, with the cutting edge assembly positioned directly above the hammer head through-hole.

[0011] Furthermore, when the upper and lower molds are closed, the edge-cutting blade assembly can be inserted into the inside of the hammerhead through-hole to remove the burrs on the outer surface of the hammerhead blank placed inside the hammerhead through-hole.

[0012] Preferably, the lower mold has an installation hole at its top, a water spray head is installed inside the installation hole, and a water supply pipe is installed at the bottom of the water spray head for spraying water to cool the upper mold.

[0013] Preferably, the top of the upper mold is provided with a water inlet channel, which is located directly above the mounting hole. The top of the water inlet channel extends into the interior of the upper mold, and one end of the water inlet channel extends into the bottom of the upper mold and is provided with a water outlet.

[0014] Furthermore, after the upper and lower molds are closed, the water spray head is connected directly below the water inlet channel, which can deliver water to the inside of the water inlet channel. The water flows from the inside of the water inlet channel to the outlet, which can cool down the hammer forging part of the upper mold and prevent the mold from overheating and wearing out.

[0015] The beneficial effects of this utility model are:

[0016] This invention, by creating corresponding cylindrical hammer grooves, conical hammer grooves, and hammer head slots in the middle of the upper and lower molds, allows workers to use clamps to separately place heated hammer head blanks into the cylindrical hammer grooves, conical hammer grooves, and hammer head slots for forging. This enables the forging of hammer heads with different shapes at both ends in one go, greatly improving the forging time and avoiding the cooling caused by transferring the hammer head. Forging the two ends of the hammer head separately allows for precise control of the metal flow lines of the hammer head, improving the strength and service life of the explosion-proof hammer.

[0017] In this invention, when the hammer blank is forged by the upper die, the hammer blank will squeeze the abutment plate, causing the abutment plate to squeeze the compression spring downward. When the upper die moves upward, the abutment plate is subjected to the upward squeezing force of the compression spring, which can eject the hammer blank stuck inside the cylindrical hammer groove or the conical hammer groove, thus achieving the effect of ejecting the hammer blank during forging.

[0018] In this invention, the water spray head can be connected to a water supply pipe to spray water to cool the upper and lower molds. When the upper mold closes to the top of the lower mold, the water sprayed from the water spray head can enter the interior of the water inlet channel, allowing the water to circulate inside the upper mold and then flow out from the outlet, achieving the effect of rapid cooling of the upper and lower molds. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the upper mold structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the spray head structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the ejection assembly structure of this utility model.

[0025] Legend:

[0026] In the diagram: 1. Fixed platform; 11. Support column; 12. Connecting column; 2. Connecting plate; 21. Upper mold; 3. Lower mold; 31. Columnar hammer groove; 32. Conical hammer groove; 33. Hammer head slot; 4. Ejection assembly; 401. Mounting block; 402. Annular groove; 403. Compression spring; 404. Support plate; 405. Sliding sleeve; 5. Hammer head through-hole; 51. Edge trimming knife assembly; 6. Water spray head; 61. Water supply pipe; 7. Water inlet channel; 71. Water outlet. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 As shown, a mold for producing high-strength explosion-proof hammers includes a fixed platform 1, a support column 11 fixedly installed on the top of the fixed platform 1, a connecting column 12 fixedly installed on the top of the support column 11, a connecting plate 2 slidably installed on the outer surface of the connecting column 12, a lower mold 3 fixedly installed on the top of the fixed platform 1, an upper mold 21 fixedly installed on the bottom of the connecting plate 2, and cylindrical hammer grooves 31, conical hammer grooves 32, and hammer head slots 33 opened on the top of the lower mold 3 and the bottom of the upper mold 21, for forging the two ends of the hammer head respectively. An ejection assembly 4 is provided on the top of the fixed platform 1.

[0029] Furthermore, by installing a support column 11 on the top of the workbench, the lower mold 3 is fixedly installed on the top of the workbench. The support column 11 and the workbench are set at the same height, so that when the connecting plate 2 slides down through the docking column 12 to press against the top of the lower mold 3, the height of the descent of the upper mold 21 can be limited to avoid damage to the lower mold 3. By opening corresponding cylindrical hammer grooves 31, conical hammer grooves 32 and hammer head slots 33 on the top of the lower mold 3 and the bottom of the upper mold 21, the heated blank can be placed into the cylindrical hammer grooves 31 first. The upper and lower molds 3 are used to press and forge the hammer head, forming the cylindrical shape of one end of the hammer head. The blank is then taken out by a fixture and placed into the conical hammer groove 32 for the same pressing and forging. Finally, it is placed into the hammer head slot 33 to form the complete hammer head. This achieves the effect of forging the hammer head ends of different shapes at both ends of the hammer head in one go. When the upper mold 21 and the lower mold 3 press and forge the hammer head blank, the formed hammer head blank may get stuck inside the cylindrical hammer groove 31 and the conical hammer groove 32, making it inconvenient to remove. The ejection mechanism can facilitate the removal of the hammer head blank.

[0030] It should be noted that the fixed table 1 is used to be placed on the worktable of the stamping device, and the connecting plate 2 is used to be connected to the bottom of the stamping head of the stamping device, so that the upper mold 21 can move up and down to close the mold to the top of the lower mold 3, and forge the blank placed in the hammer head slot 33. The internal structure of the stamping device is existing technology, and its working principle is common knowledge to those skilled in the art, and will not be described in detail here.

[0031] First, considering the problem of how to eject the hammer blank stuck in the cylindrical hammer groove 31 or the conical hammer groove 32, the following is presented: Figure 1and Figure 5 The specific structure of the ejection mechanism is disclosed. The ejection assembly 4 includes a mounting block 401. The top of the mounting block 401 has a hole. The bottom of the inner wall of the hole has an annular groove 402 that penetrates into the interior of the fixed platform 1. A compression spring 403 is installed at the bottom of the inner wall of the hole. A stop plate 404 is installed on the top of the compression spring 403. A sliding sleeve 405 that is sleeved on the outside of the compression spring 403 is installed on the bottom of the stop plate 404.

[0032] The bottom of the sliding sleeve 405 is inserted into the interior of the annular groove 402, and the mounting block 401 is set on the front of the lower mold 3.

[0033] There are two ejector components 4. The two ejector components 4 are located on the top of the fixed platform 1 and are arranged in a linear array. The two ejector components 4 are respectively located on the front of the cylindrical hammer groove 31 and the conical hammer groove 32.

[0034] Furthermore, by fixing a mounting block 401 on the top of the fixed platform 1, and opening a hole at the top of the mounting block 401, the compression spring 403 can be installed into the bottom of the inner wall of the hole, and the top of the compression spring 403 is connected to the bottom of the abutment plate 404. An arc-shaped groove penetrating into the fixed platform 1 is opened at the bottom of the inner wall of the hole, so that the sliding sleeve 405 is inserted into the inside of the arc-shaped groove for stable up and down movement of the abutment plate 404. The mounting block 401 is set on the front of the cylindrical groove. The blank is placed into the inside of the cylindrical groove, and the upper die 21 punches and forges one end of the blank hammer into a cylindrical shape. The other end of the blank protrudes outside the lower die 3 and is located on the top of the abutment plate 404. When the hammerhead is forged and clamped into the cylindrical hammer groove 31 by the upper mold 21, the hammerhead blank will press down on the abutment plate 404, causing the abutment plate 404 to compress the spring 403 downward. When the upper mold 21 rises, the abutment plate 404 is no longer subjected to the downward pressure of the upper mold 21 on the hammerhead blank, and the compression spring 403 presses the abutment plate 404 upward. The abutment plate 404 moves upward to eject the hammerhead blank clamped into the cylindrical hammer groove 31, achieving the effect of ejecting the hammerhead blank during forging. There are two ejection components 4, which are respectively set on the front of the cylindrical hammer groove 31 and the conical hammer groove 32, and can eject the hammerhead blank forged in the cylindrical hammer groove 31 and the conical hammer groove 32.

[0035] Secondly, considering that the upper die 21 and lower die 3 perform multiple stamping and forging processes on the hammer blank, the upper and lower dies 3 will generate heat, accelerate wear, and reduce service life. Therefore, the following is provided: Figure 4 The lower mold 3 has an installation hole on its top, and a water spray head 6 is installed inside the installation hole. A water supply pipe 61 is installed at the bottom of the water spray head 6 for spraying water to cool the upper mold 21.

[0036] The top of the upper mold 21 is provided with a water inlet channel 7, which is located directly above the mounting hole. The top of the water inlet channel 7 extends into the interior of the upper mold 21, and one end of the water inlet channel 7 extends into the bottom of the upper mold 21 where a water outlet 71 is provided.

[0037] Furthermore, by opening a hole at the top of the lower mold 3 that extends through to the outside of the fixed platform 1, the water spray head 6 can be installed inside the mounting hole. The water supply pipe 61 can then connect to the water inlet at the bottom of the water spray head 6, supplying water to the spray head 6. This allows the spray nozzle 6 to spray water upwards from the mounting hole, cooling the upper mold 21. The water also falls onto the top of the lower mold 3, further cooling it. When the upper mold 21 closes to the top of the lower mold 3, the water sprayed from the water spray head 6 enters the water inlet channel 7, allowing the water to circulate within the water inlet channel 7 of the upper mold 21. The bottom of the upper mold 21 has an outlet 71 connected to the outlet of the water inlet channel 7, from which water flows out, achieving efficient cooling of the upper mold 21.

[0038] Finally, considering the issue of burrs on the outer surface of the hammerhead blank after forging, we present... Figures 1-3 The lower mold 3 has a hammer head through-hole 5 at the top, and the upper mold 21 has a cutting edge knife assembly 51 fixedly installed at the bottom, with the cutting edge knife assembly 51 positioned directly above the hammer head through-hole 5.

[0039] Furthermore, a trimming blade assembly 51 is installed at the bottom of the upper mold 21, and a hammerhead through-hole 5 is opened at the top of the lower mold 3, extending through to the bottom of the fixed platform 1. The formed hammerhead blank is placed into the hammerhead through-hole 5, and the upper mold 21 moves downward so that the trimming blade assembly 51 can cut off the burrs of the hammerhead blank, so that the formed hammerhead flows out from the hammerhead through-hole 5 for the next step of processing.

[0040] It should be noted that the cutting blade assembly 51 is a cutting blade adapted to the shape of the hammer head, which can remove excess material from the outer surface of the hammer head.

[0041] In summary, the working principle of this utility model is as follows:

[0042] When forging a hammerhead with cylindrical and conical ends, corresponding cylindrical hammer grooves 31, conical hammer grooves 32, and hammerhead openings 33 are made in the middle of the upper die 21 and the lower die 3. This allows the operator to place the heated hammerhead blank into the cylindrical hammer groove 31 using a clamp. The upper die 21 is moved downwards along the connecting column 12 by the stamping device to stamp and forge the cylindrical end of the hammerhead. After forging the cylindrical hammerhead, the unprocessed hammerhead is placed into the conical hammer groove 32 by rotating the clamped hammerhead blank. The conical end of the hammerhead is forged in the same way. Next, the hammer blank is placed into the hammer slot 33 for integral forming and stamping forging. Finally, the formed hammer is placed into the hammer through-hole 5. The burrs of the hammer are removed by the cutting edge set 51 pressed down by the upper die 21. The hammer falls from the hammer through-hole 5 for the next step of processing. This achieves the effect of separately forging cylindrical and conical hammers of different shapes, avoiding the time of hammer transfer, improving the efficiency of hammer forging, and separately forging the two ends of the hammer. This allows for separate control of the metal flow lines of the different hammer shapes at both ends of the hammer, improving the strength and service life of the explosion-proof hammer.

[0043] When the hammer blank is forged by the upper die 21, the hammer blank will squeeze the abutment plate 404, causing the abutment plate 404 to squeeze the compression spring 403 downward. When the upper die 21 moves upward, the abutment plate 404 is subjected to the upward squeezing force of the compression spring 403, which can push out the hammer blank stuck in the cylindrical hammer groove 31 or the conical hammer groove 32, achieving the effect of pushing out the hammer blank during forging.

[0044] A water spray head 6 with an installation hole at the top of the lower mold 3 can be connected to a water supply pipe 61 to spray water to cool the upper mold 21 and the lower mold 3. When the upper mold 21 closes to the top of the lower mold 3, the water sprayed from the water spray head 6 can enter the interior of the water inlet channel 7, allowing the water to circulate inside the upper mold 21 and then flow out from the outlet 71, achieving the effect of rapid cooling of the upper mold 21 and the lower mold 3.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A mold for producing high-strength explosion-proof hammers, comprising a fixed platform (1), a support column (11) fixedly mounted on the top of the fixed platform (1), a connecting column (12) fixedly mounted on the top of the support column (11), and a connecting plate (2) slidably mounted on the outer surface of the connecting column (12), characterized in that: The top of the fixed platform (1) is fixedly installed with a lower mold (3), and the bottom of the connecting plate (2) is fixedly installed with an upper mold (21). The top of the lower mold (3) and the bottom of the upper mold (21) are provided with a columnar hammer groove (31), a conical hammer groove (32) and a hammer head groove (33) for forging the two ends of the hammer head respectively. The top of the fixed platform (1) is provided with an ejector assembly (4). The ejection assembly (4) includes a mounting block (401), the top of which has a hole, and the bottom of the inner wall of the hole has an annular groove (402) that extends into the interior of the fixed platform (1). A compression spring (403) is installed at the bottom of the inner wall of the annular groove (402), a stop plate (404) is installed at the top of the compression spring (403), and a sliding sleeve (405) that is sleeved on the outside of the compression spring (403) is installed at the bottom of the stop plate (404).

2. The mold for producing high-strength explosion-proof hammers according to claim 1, characterized in that: The bottom of the sliding sleeve (405) is inserted into the interior of the annular groove (402), and the mounting block (401) is set on the front of the lower mold (3).

3. A mold for producing high-strength explosion-proof hammers according to claim 2, characterized in that: There are two ejector components (4). The two ejector components (4) are arranged in a linear array on the top of the fixed platform (1). The two ejector components (4) are respectively located on the front of the cylindrical hammer groove (31) and the conical hammer groove (32).

4. A mold for producing high-strength explosion-proof hammers according to claim 1, characterized in that: The lower mold (3) has a hammer head through-hole (5) at its top, and the upper mold (21) has a cutting edge assembly (51) fixedly installed at its bottom, with the cutting edge assembly (51) positioned directly above the hammer head through-hole (5).

5. A mold for producing high-strength explosion-proof hammers according to claim 1, characterized in that: The lower mold (3) has an installation hole at the top, and a water spray head (6) is installed inside the installation hole. A water supply pipe (61) is installed at the bottom of the water spray head (6) for spraying water to cool the upper mold (21).

6. A mold for producing high-strength explosion-proof hammers according to claim 5, characterized in that: The upper mold (21) has a water inlet channel (7) at the top, which is located directly above the mounting hole. The top of the water inlet channel (7) extends into the interior of the upper mold (21), and one end of the water inlet channel (7) extends into the bottom of the upper mold (21) where a water outlet (71) is provided.

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