A vacuum sintering furnace for producing metal powder metallurgy workpieces

Abstract

The utility model provides a vacuum sintering furnace for the production of metal powder metallurgy workpieces, belonging to the technical field of sintering furnaces; comprising a sintering furnace body, a furnace cover is slidably connected to the opening of the sintering furnace body, a plurality of support rods are fixedly connected to the bottom of the sintering furnace body, a limit ring is fixedly connected to the outer surface of the sintering furnace body, a plurality of second slide grooves are provided on the limit ring, a cross protrusion is fixedly connected to the side of the sintering furnace body away from the opening, a third slide groove is provided at the end of the cross protrusion, and a quick opening mechanism for closing and opening the furnace cover is installed on the cross protrusion. The utility model sets a furnace cover and a quick opening mechanism, and can drive all the transmission rods and the block to complete the engagement and separation operation of the furnace cover through a motor, which is simple and quick, and does not need to turn the bolts one by one to open or close the furnace cover, which reduces the operation time, realizes faster opening and closing, and improves work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering furnaces, in particular to a vacuum sintering furnace used for the production of metal powder metallurgy workpieces. Background Art

[0002] A vacuum sintering furnace is a special furnace that is mainly used to sinter materials at high temperatures. The characteristic of this furnace is that it uses a vacuum environment under high temperature to reduce the oxidation and corrosion of the materials. At the same time, by controlling the temperature, atmosphere and other conditions, it can achieve uniform sintering of the materials. It is usually used for the processing and manufacturing of metals, ceramics, semiconductors and other materials.

[0003] In order to ensure the airtightness of the furnace during operation, the existing sintering furnace often uses multiple bolts to fix the furnace cover. When opening or closing the furnace cover, it is necessary to turn the bolts one by one to open or close the furnace cover, which is time-consuming and cannot be opened and closed quickly. Therefore, the present application provides a vacuum sintering furnace for the production of metal powder metallurgy workpieces to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a vacuum sintering furnace for the production of metal powder metallurgy workpieces to solve the problem that in order to ensure the airtightness in the furnace during operation, the existing sintering furnace often uses multiple bolts to fix the furnace cover. When opening or closing the furnace cover, it is necessary to turn the bolts one by one to open or close the furnace cover, which easily consumes a lot of time and cannot be opened and closed quickly.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A vacuum sintering furnace for the production of metal powder metallurgy workpieces, comprising a sintering furnace main body, a furnace cover being slidably connected to the opening of the sintering furnace main body, a plurality of support rods being fixedly connected to the bottom of the sintering furnace main body, a limit ring being fixedly connected to the outer surface of the sintering furnace main body, a plurality of second slide grooves being provided on the limit ring, a cross protrusion being fixedly connected to the side of the sintering furnace main body away from the opening, a third slide groove being provided at the end of the cross protrusion, a quick-opening mechanism for closing and opening the furnace cover being installed on the cross protrusion, the quick-opening mechanism comprising a plurality of slide rods being equidistantly arranged in a circle around the sintering furnace main body, one end of the slide rod passing through the first slide groove The second slide groove is fixedly connected with a block adapted to the furnace cover, the other end of the slide rod away from the block passes through the third slide groove and is fixedly connected with a limiting block, the slide rod is slidably connected with a first slider, one side of the first slider is rotatably connected with a transmission rod, the transmission rod is "V"-shaped and the middle end point is rotatably connected with the cross protrusion, a first slide groove is opened at one end of the transmission rod away from the first slider, a motor is fixedly connected in the middle of the cross protrusion, a screw is fixedly connected to the output end of the motor, a second slide groove is threadedly connected to the screw, and the side surfaces of the second slide groove are fixedly connected with limiting nails, and the limiting nails are sleeved with the first slide groove.

[0007] Preferably, a plurality of support frames are fixedly connected inside the sintering furnace body, and the support frames are slidably connected with the same inner furnace body.

[0008] Preferably, a plurality of bearing plates are fixedly connected to a side of the furnace cover close to the sintering furnace body, and the bearing plates are slidably connected to the inner furnace body.

[0009] Preferably, a frame is fixedly connected below the furnace cover, and pulleys are fixedly connected to the bottoms of both sides of the frame.

[0010] Preferably, a handle is fixedly connected to a side of the furnace cover away from the sintering furnace body.

[0011] Preferably, a protrusion is fixedly connected to a side of the clamping block away from the sliding rod, and the protrusion is arranged in an inclined shape.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects:

[0013] In the above scheme, by providing a furnace cover and a quick-opening mechanism, when the sintering furnace body needs to be sealed after the material is filled in the sintering furnace body, the furnace cover can be closed and the motor can be started to rotate the screw, and the second slider on the screw moves in the direction away from the sintering furnace body, and the limiting nail slides in the first slide groove, driving the middle end point of the transmission rod to rotate on the cross protrusion, and the first slider will slide on the slide rod, thereby allowing the slide rod to move in the direction close to the sintering furnace body. When all the slide rods are about to approach the sintering furnace body, the furnace cover will contact the inclined protrusion. When the slide rod continues to move, the furnace cover will approach the sintering furnace body along the inclined surface of the protrusion, and finally the furnace cover will slide in The furnace cover can be locked and fixed by engaging with the card block inside the card block. When sintering is completed and the furnace cover needs to be opened, the motor is started in the opposite direction to move the second slider toward the sintering furnace body, and the slide bar is moved away from the sintering furnace body through the transmission rod, so that the furnace cover is separated from the card block, and the fixing of the furnace cover can be released. The advantage of this is that all the transmission rods can drive all the slide bars and card blocks to complete the engagement and separation operations of the furnace cover through one motor. It is simple and quick, and there is no need to turn the bolts one by one to open or close the furnace cover, which reduces the operation time, achieves faster opening and closing, and improves work efficiency.

[0014] By providing an inner furnace body and a carrying plate, during sintering, the workpiece is placed on the carrying plate, the furnace cover is pushed toward the sintering furnace body, and the carrying plate is pushed into the interior of the inner furnace body. Sintering can be carried out after the furnace cover is closed and sealed. When the inner furnace body needs to be repaired or cleaned, the inner furnace body can also be slid out of the sintering furnace body for operation. By providing a pulley and a handle, the furnace cover can be pulled by holding the handle. The furnace cover can be pushed, pulled and slid more easily due to the presence of the pulley, which saves time and effort and allows the staff to more conveniently place and remove workpieces on the carrying plate connected to the furnace cover. At the same time, the staff will not directly contact the interior of the sintering furnace body, preventing the staff from being scalded by the internal furnace temperature of the sintering furnace body, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 A schematic diagram of the first-person perspective of a vacuum sintering furnace for the production of metal powder metallurgy workpieces;

[0017] Figure 2 A schematic diagram of the third perspective structure of a vacuum sintering furnace for producing metal powder metallurgy workpieces;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the quick-opening mechanism;

[0019] Figure 4This is a schematic diagram of the internal structure of the sintering furnace body after removing the furnace cover and the bearing plate;

[0020] Figure 5 This is a three-dimensional enlarged structural diagram after the furnace cover and the supporting plate are assembled.

[0021] [reference numerals]

[0022] 1. Sintering furnace body; 2. Furnace cover; 3. Limiting ring; 4. Quick opening mechanism; 5. Cross protrusion; 6. Slide rod; 7. Block; 8. First slide block; 9. Limiting block; 10. Second slide block; 11. Transmission rod; 12. First slide slot; 13. Limiting pin; 14. Motor; 15. Screw; 16. Loading plate; 17. Support frame; 18. Inner furnace body; 19. Support rod; 20. Frame; 21. Pulley; 22. Handle; 23. Second slide slot; 24. Third slide slot; 25. Protrusion.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The following is a detailed description of a vacuum sintering furnace for the production of metal powder metallurgy workpieces provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0025] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0026] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0027] It will be understood that the meaning of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, so that “on” means not only “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” means not only “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0028] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0029] like Figure 1-Figure 3As shown, an embodiment of the utility model provides a vacuum sintering furnace for the production of metal powder metallurgy workpieces, including a sintering furnace main body 1, a furnace cover 2 is slidably connected to the opening of the sintering furnace main body 1, a plurality of support rods 19 are fixedly connected to the bottom of the sintering furnace main body 1, a limit ring 3 is fixedly connected to the outer surface of the sintering furnace main body 1, a plurality of second slide grooves 23 are provided on the limit ring 3, a cross protrusion 5 is fixedly connected to the side of the sintering furnace main body 1 away from the opening, and the ends of the cross protrusions 5 are provided with third slide grooves 24, and a quick-opening mechanism 4 for closing and opening the furnace cover 2 is installed on the cross protrusion 5, and the quick-opening mechanism 4 includes a plurality of slide rods 6 arranged equidistantly in a circle around the sintering furnace main body 1, one end of the slide rod 6 passes through the second slide groove 23 and is fixedly connected to the furnace cover. 2, the other end of the slide bar 6 away from the slide bar 7 passes through the third slide groove 24 and is fixedly connected to the limiting block 9, the slide bar 6 is slidably connected with the first slide block 8, one side of the first slide block 8 is rotatably connected with a transmission rod 11, the transmission rod 11 is "V"-shaped and the middle end point is rotatably connected with the cross protrusion 5, the end of the transmission rod 11 away from the first slide block 8 is provided with a first slide groove 12, the middle of the cross protrusion 5 is fixedly connected with a motor 14, the output end of the motor 14 is fixedly connected with a screw 15, the screw 15 is threadedly connected with the second slide block 10, the side of the second slide block 10 is fixedly connected with a limiting pin 13, the limiting pin 13 is sleeved with the first slide groove 12, the block 7 is fixedly connected with a protrusion 25 on the side away from the slide bar 6, and the protrusion 25 is inclined.

[0030] By setting the furnace cover 2 and the quick-opening mechanism 4, when the sintering furnace body 1 needs to be sealed after the material is filled in, the furnace cover 2 can be closed and the motor 14 can be started to rotate the screw 15, and the second slider 10 on the screw 15 moves in the direction away from the sintering furnace body 1, and the limit pin 13 slides in the first slide groove 12, driving the middle end point of the transmission rod 11 to rotate on the cross protrusion 5, and the first slider 8 will slide on the slide bar 6, so that the slide bar 6 moves in the direction close to the sintering furnace body 1, and when all the slide bars 6 are about to get close to the sintering furnace body 1, the furnace cover 2 will contact the inclined protrusion 25, and when the slide bar 6 continues to move, the furnace cover 2 will move closer to the sintering furnace body 1 along the inclined surface of the protrusion 25, and finally the furnace cover 2 will By sliding into the card block 7 and engaging with the card block 7, the furnace cover 2 can be locked and fixed. When sintering is completed and the furnace cover 2 needs to be opened, the motor 14 is started in the opposite direction to move the second slider 10 toward the sintering furnace body 1. The sliding rod 6 is moved away from the sintering furnace body 1 through the transmission rod 11, so that the furnace cover 2 is disengaged from the card block 7, and the locking and fixing of the furnace cover 2 can be released. The advantage of this is that all the transmission rods 11 can drive all the sliding rods 6 and the card block 7 to complete the locking and separation operations of the furnace cover 2 through one motor 14. It is simple and quick, and there is no need to turn the bolts one by one to open or close the furnace cover 2, which reduces the operation time, achieves faster opening and closing, and improves work efficiency.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, a plurality of support frames 17 are fixedly connected inside the sintering furnace body 1, and an inner furnace body 18 is slidably connected between the support frames 17; a plurality of supporting plates 16 are fixedly connected to the side of the furnace cover 2 close to the sintering furnace body 1, and the supporting plates 16 are slidably connected to the inner furnace body 18; a frame 20 is fixedly connected to the bottom of the furnace cover 2, and pulleys 21 are fixedly connected to the bottom of both sides of the frame 20; a handle 22 is fixedly connected to the side of the furnace cover 2 away from the sintering furnace body 1.

[0032] By providing the inner furnace body 18 and the supporting plate 16, during sintering, the workpiece is placed on the supporting plate 16, and the furnace cover 2 is pushed toward the sintering furnace body 1 to push the supporting plate 16 into the inner furnace body 18. After the furnace cover 2 is closed and sealed, sintering can be carried out. When the inner furnace body 18 needs to be repaired or cleaned, the inner furnace body 18 can also be slid out of the sintering furnace body 1 for operation. By providing the pulley 21 and the handle 22, the furnace cover 2 can be pulled by holding the handle 22. The furnace cover 2 can be pushed, pulled and slid more easily due to the presence of the pulley 21, which saves time and effort and allows the staff to more conveniently place and remove the workpiece on the supporting plate 16 connected to the furnace cover 2. At the same time, the staff will not directly contact the inside of the sintering furnace body 1, preventing the staff from being scalded by the internal furnace temperature of the sintering furnace body 1, thereby improving safety.

[0033] The technical solution provided by the utility model is to set a furnace cover 2 and a quick-opening mechanism 4. When the sintering furnace body 1 needs to be sealed after the material is filled in the sintering furnace body 1, the furnace cover 2 can be closed and the motor 14 can be started to rotate the screw 15. The second slider 10 on the screw 15 moves in the direction away from the sintering furnace body 1, and the limiting nail 13 slides in the first slide groove 12, driving the middle end point of the transmission rod 11 to rotate on the cross protrusion 5. The first slider 8 will slide on the slide rod 6, so that the slide rod 6 moves in the direction close to the sintering furnace body 1. When all the slide rods 6 are about to approach the sintering furnace body 1, the furnace cover 2 will contact the inclined protrusion 25. When the slide rod 6 continues to move, the furnace cover 2 will move closer to the sintering furnace body 1 along the inclined surface of the protrusion 25. Finally, the furnace cover 2 will slide into the block 7 and engage with the block 7, so that the furnace cover 2 can be locked and fixed. When sintering is completed and the furnace cover 2 needs to be opened, the motor 14 is started in the opposite direction to move the second slider 10 toward the sintering furnace body 1, and the slide bar 6 is moved away from the sintering furnace body 1 through the transmission rod 11, so that the furnace cover 2 is separated from the block 7, and the locking and fixing of the furnace cover 2 can be released. The advantage of this is that all the transmission rods 11 can drive all the slide bars 6 and the block 7 to complete the locking and separation operations of the furnace cover 2 through one motor 14. It is simple and quick, and there is no need to turn the bolts one by one to open or close the furnace cover 2, which reduces the operation time, achieves faster opening and closing, and improves work efficiency.

[0034] By providing the inner furnace body 18 and the supporting plate 16, during sintering, the workpiece is placed on the supporting plate 16, and the furnace cover 2 is pushed toward the sintering furnace body 1 to push the supporting plate 16 into the inner furnace body 18. After the furnace cover 2 is closed and sealed, sintering can be carried out. When the inner furnace body 18 needs to be repaired or cleaned, the inner furnace body 18 can also be slid out of the sintering furnace body 1 for operation. By providing the pulley 21 and the handle 22, the furnace cover 2 can be pulled by holding the handle 22. The furnace cover 2 can be pushed, pulled and slid more easily due to the presence of the pulley 21, which saves time and effort and allows the staff to more conveniently place and remove the workpiece on the supporting plate 16 connected to the furnace cover 2. At the same time, the staff will not directly contact the inside of the sintering furnace body 1, preventing the staff from being scalded by the internal furnace temperature of the sintering furnace body 1, thereby improving safety.

[0035] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0036] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum sintering furnace for the production of metal powder metallurgy workpieces, characterized in that: include: A sintering furnace body (1), wherein a furnace cover (2) is slidably connected to the opening of the sintering furnace body (1), a plurality of support rods (19) are fixedly connected to the bottom of the sintering furnace body (1), a limit ring (3) is fixedly connected to the outer surface of the sintering furnace body (1), a plurality of second slide grooves (23) are provided on the limit ring (3), a cross protrusion (5) is fixedly connected to the side of the sintering furnace body (1) away from the opening, a third slide groove (24) is provided at the end of the cross protrusion (5), and a quick opening mechanism (4) for closing and opening the furnace cover (2) is installed on the cross protrusion (5), The quick-opening mechanism (4) comprises a plurality of slide bars (6) equidistantly arranged in a circumferential shape around the sintering furnace body (1); one end of the slide bar (6) passes through the second slide groove (23) and is fixedly connected to a block (7) adapted to the furnace cover (2); the other end of the slide bar (6) away from the block (7) passes through the third slide groove (24) and is fixedly connected to a limit block (9); a first slider (8) is slidably connected to the slide bar (6); one side of the first slider (8) is rotatably connected to a transmission rod (11); the transmission rod (11) is 1) is "V"-shaped and the middle end point is rotatably connected to the cross protrusion (5), the end of the transmission rod (11) away from the first slider (8) is provided with a first slide groove (12), the middle of the cross protrusion (5) is fixedly connected to a motor (14), the output end of the motor (14) is fixedly connected to a screw rod (15), the screw rod (15) is threadedly connected to a second slider (10), the side surfaces of the second slider (10) are fixedly connected to limit pins (13), and the limit pins (13) are sleeved with the first slide groove (12).

2. The vacuum sintering furnace for producing metal powder metallurgy workpieces according to claim 1, characterized in that: A plurality of support frames (17) are fixedly connected inside the sintering furnace body (1), and the support frames (17) are slidably connected to the same inner furnace body (18).

3. The vacuum sintering furnace for producing metal powder metallurgy workpieces according to claim 2, characterized in that: A plurality of bearing plates (16) are fixedly connected to one side of the furnace cover (2) close to the sintering furnace body (1), and the bearing plates (16) are slidably connected to the inner furnace body (18).

4. The vacuum sintering furnace for producing metal powder metallurgy workpieces according to claim 1, characterized in that: A frame (20) is fixedly connected below the furnace cover (2), and pulleys (21) are fixedly connected to the bottoms of both sides of the frame (20).

5. The vacuum sintering furnace for producing metal powder metallurgy workpieces according to claim 1, characterized in that: A handle (22) is fixedly connected to a side of the furnace cover (2) away from the sintering furnace body (1).

6. The vacuum sintering furnace for producing metal powder metallurgy workpieces according to claim 1, characterized in that: A protrusion (25) is fixedly connected to the side of the clamping block (7) away from the sliding rod (6), and the protrusion (25) is arranged in an inclined shape.

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