Oil immersion machine for powder metallurgy sintered sheet-shaped workpiece

Abstract

The utility model discloses a powder metallurgy sintering flaky workpiece oil immersion machine which comprises an oil immersion container and a workpiece container which are arranged on an oil immersion path, and a stroke mechanism which can move the workpiece container into the oil immersion container and enable a flaky workpiece to be immersed in oil during oil immersion, a limiting structure capable of arranging the flaky workpieces at intervals and keeping the flaky workpieces in a vertical state is arranged in the workpiece container; according to the locking assembly, the sheet-shaped workpieces can be prevented from being overlapped and shielded during oil immersion, the contact area of the sheet-shaped workpieces and oil is effectively increased, and therefore the oil immersion quality is improved.

Description

Technical Field

[0001] The utility model relates to powder metallurgy sintering oil-immersing equipment, in particular to a powder metallurgy sintering sheet workpiece oil-immersing machine. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. After the sheet workpiece is processed, it needs to be immersed in oil to attach a layer of oil film on the surface of the sheet workpiece, thereby enhancing the protection of the sheet workpiece.

[0003] During oil immersion, the sheet workpiece is generally placed in a hollow workpiece container first, and then the workpiece container is manually placed in an oil container to immerse the workpiece in oil. After immersion for a set time, the workpiece container is manually taken out, and the excess oil is discharged to complete the oil immersion. At present, since the sheet workpiece is placed horizontally in the workpiece container, the sheet workpieces are overlapped and blocked with each other, and it is difficult for the oil to fully contact the outer end surface of the sheet workpiece, resulting in uneven oil immersion of the sheet workpiece, the existence of oil immersion blind spots, and low oil immersion effect. For this reason, the sheet workpiece needs to be manually turned over during oil immersion, which increases the work intensity accordingly, and the oil immersion quality is uneven. Utility Model Content

[0004] The utility model aims to provide a powder metallurgy sintered sheet workpiece oil immersion machine, which can avoid the sheet workpieces overlapping and blocking each other during oil immersion, effectively increase the contact area between the sheet workpiece and the oil, and thus improve the oil immersion quality.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A powder metallurgy sintering sheet workpiece oil immersion machine comprises an oil immersion container and a workpiece container arranged on an oil immersion path, and a travel mechanism which can move the workpiece container into the oil immersion container and immerse the sheet workpiece in oil during oil immersion, wherein a limiting structure is arranged in the workpiece container so that the sheet workpieces can be spaced apart from each other and kept in an upright state.

[0007] On the basis of the above technical solution, the present invention can be improved as follows:

[0008] Furthermore, a receiving cavity capable of accommodating a plurality of sheet workpieces is formed inside the workpiece container, a plurality of partitions capable of dividing the receiving cavity into a plurality of receiving grooves are arranged inside the workpiece container, and limiting members capable of placing the sheet workpieces upright in the receiving grooves and arranging them at equal intervals along the length direction of the receiving grooves are arranged inside the receiving grooves.

[0009] Furthermore, the limiting members are slots arranged in pairs on both side walls of the receiving groove in the width direction, and the top ends of the slots form slot openings for inserting sheet-shaped workpieces.

[0010] Furthermore, a plurality of oil holes for circulating oil are provided on the bottom plate and the side plates of the workpiece container, as well as on the partition plate.

[0011] Furthermore, the slots on two adjacent storage slots are arranged in a staggered manner.

[0012] Furthermore, the travel mechanism includes a gantry, a lifting frame movably arranged on the gantry, a driving mechanism for driving the lifting frame to rise and fall, and a controller arranged on the gantry, and the workpiece container is placed on the lifting frame; the controller is used to control the driving mechanism to drive the lifting frame to descend into the oil immersion container during oil immersion, and immerse the workpiece container in the oil.

[0013] Furthermore, the controller is a servo controller, and the servo controller has a built-in timing module that can preset the oil immersion time.

[0014] Compared with the prior art, the utility model technology has the following advantages:

[0015] The utility model provides an oil immersion container and a workpiece container, wherein a limiting structure is provided in the workpiece container, through which the sheet workpieces can be placed upright in the workpiece container and arranged at intervals from each other, so as to avoid overlapping and blocking of the sheet workpieces during oil immersion, effectively increase the contact area between the sheet workpiece and the oil, and thus improve the oil immersion quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a schematic diagram of the structure of a utility model powder metallurgy sintering sheet workpiece oil immersion machine;

[0018] Figure 2 It is a structural schematic diagram of a utility model workpiece container.

[0019] Markings on the accompanying drawings: 1-oil immersion box, 2-workpiece box, 201-box bottom plate, 202-box side plate, 3-partition, 4-slot, 5-oil hole, 6-gantry, 601-column, 601a-guide groove, 602-beam, 7-lifting frame, 701-rectangular frame body, 702-tripod body, 702a-pulley, 8-controller, 9-winch, 10-steel cable, 11-hook, 12-lifting ring, 13-servo motor, 14-rotating wheel. DETAILED DESCRIPTION

[0020] The following is a further description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] See also Figure 1 and Figure 2 The utility model relates to an oil immersion machine for powder metallurgy sintering sheet workpieces, comprising an oil immersion container, a stroke mechanism arranged on the oil immersion container, and a workpiece container arranged on the stroke mechanism and capable of accommodating a plurality of sheet workpieces; the oil immersion container is filled with oil, and the workpiece container is driven by the stroke mechanism to move along an oil immersion path into the oil immersion container, and the sheet workpieces accommodated in the workpiece container are immersed in the oil; a limiting structure is arranged in the workpiece container, and the limiting structure is used to arrange the sheet workpieces in the workpiece container at intervals from each other and keep them in a vertical state, so that the oil can flow between the sheet workpieces.

[0022] Specifically, the oil immersion container is an oil immersion box 1, which has a rectangular box structure, an oil immersion chamber for accommodating oil is formed inside the oil immersion box 1, and a box port connected to the oil immersion chamber is formed on the top of the oil immersion box 1; during oil immersion, the workpiece container can enter the oil immersion chamber inside the oil immersion box 1 from the box port so that the sheet workpiece is immersed in the oil; according to actual needs, the oil immersion container in this embodiment can also be replaced by other containers with an oil immersion chamber formed inside, such as an oil immersion cylinder or an oil immersion pool.

[0023] The workpiece container is a workpiece box 2, which has a rectangular box structure, including a box bottom plate 201, and four box side plates 202 connected to each other end to end on the box bottom plate 201. The top of the workpiece container forms a box opening opposite to the box bottom plate 201, and the inside of the workpiece container forms a receiving cavity for receiving multiple sheet workpieces. The multiple sheet workpieces are received in the receiving cavity inside the workpiece container through the box opening; the limiting structure includes multiple partitions 3 arranged in the receiving cavity, the partitions 3 are arranged at equal intervals along the length direction of the workpiece container, the two ends of the partitions 3 in the length direction are connected to the box side plates 202 of the workpiece container, and the bottom side of the partitions 3 is connected to the box bottom plate 201 of the workpiece container, the partitions 3 divide the receiving cavity inside the workpiece container into multiple storage grooves arranged side by side, and limiting members are arranged in the storage grooves. The limiting members are used to stand the sheet workpieces in the storage grooves and arrange them at equal intervals along the length direction of the storage grooves.

[0024] The limiting members are slots 4 arranged in pairs on the two side walls in the width direction of the storage groove, and there are multiple pairs of slots 4 arranged at equal intervals along the length direction of the storage groove; the slots 4 are vertically arranged slot bodies, and the slots 4 cooperate with the side edges of the sheet workpieces to form a supporting force on both sides of the sheet workpieces, so that the sheet workpieces can be placed upright in the storage groove and arranged at intervals in the storage groove, thereby avoiding the sheet workpieces being stacked on each other and causing insufficient oil immersion; the bottom end of the slot 4 is connected to the box bottom plate 201, and the top end of the slot 4 forms a slot opening for inserting the sheet workpiece; in this embodiment, according to implementation needs, the workpiece container can also be replaced by other containers with a accommodating cavity formed inside, such as a workpiece basket.

[0025] A plurality of oil holes 5 are provided on the box bottom plate 201 and the box side plate 202 of the workpiece container, as well as on the partition plate 3; when the stroke mechanism drives the workpiece container to move into the oil immersion container, the oil enters the workpiece container through the oil holes 5 and flows between the various storage grooves inside the workpiece container to immerse the sheet workpiece.

[0026] It should be noted that the width of the slot 4 should be greater than the thickness of the sheet workpiece, so that a gap is formed between the sheet workpiece and the slot 4 to avoid the inner wall surface of the slot 4 being rigidly fitted with the outer surface of the sheet workpiece and damaging the sheet workpiece, and to facilitate the oil to enter the slot 4 through the gap to immerse the insertion side of the sheet workpiece, thereby avoiding the formation of an oil immersion blind area; at the same time, the slots 4 on two adjacent receiving grooves are staggered so that the sheet workpieces accommodated in the two adjacent receiving grooves are correspondingly staggered, so as to form a circuitous oil flow path between the receiving grooves, reduce the flow rate of the oil, and increase the contact time between the oil and the sheet workpiece, thereby improving the oil immersion effect.

[0027] The travel mechanism includes a gantry 6, a lifting frame 7 movably arranged on the gantry 6, a driving mechanism for driving the lifting frame 7 to rise and fall, and a controller 8 arranged on the gantry 6; the workpiece container is placed on the lifting frame 7, and the controller 8 controls the driving mechanism to start and drive the lifting frame 7 to descend into the oil immersion container, so that the workpiece container is immersed in oil to immerse the sheet workpiece in oil; after the sheet workpiece is immersed in oil for a set time, the controller 8 controls the driving mechanism to start again and drives the lifting frame 7 to rise and exit the oil immersion container, and the excess oil on the sheet workpiece is discharged from the outside of the workpiece container through the oil hole 5 under the action of gravity and flows back into the oil immersion container, thereby completing the oil immersion of the sheet workpiece. During the entire oil immersion process, there is no need to manually immerse and lift the sheet workpiece, which effectively reduces labor intensity, ensures consistency in oil immersion time, and effectively improves product quality.

[0028] The gantry 6 includes two columns 601 and a crossbeam 602 connecting the tops of the two columns 601, and guide grooves 601a are arranged on opposite sides of the columns 601; the lifting frame 7 includes a rectangular frame body 701, a tripod body 702 is arranged on one side of the top of the rectangular frame body 701, a lifting ring 12 is arranged on the top of the tripod body 702, and pulleys 702a are arranged on both sides of the tripod body 702, and the pulleys 702a are slidably matched with the guide grooves 601a and slide along the guide grooves 601a; the driving mechanism includes a winch 9 arranged on the ground of the oil immersion workshop, a motor connected to the winch 9, and a rotating wheel 14 arranged on the crossbeam 602 of the gantry 6; a steel cable 10 is wound on the winch 9, and one end of the steel cable 10 is fixed Connected to the winch 9, the other end of the steel cable 10 extends toward the top of the gantry 6, passes around the rotating wheel 14 and changes direction before being connected to the lifting ring 12 on the top of the tripod body 702 through the hook 11; when the sheet workpiece is immersed in oil, the controller 8 controls the motor to start, drives the winch 9 to unwind and release the steel cable 10, and the lifting frame 7 slides down along the guide groove 601a on the column 601 to immerse the workpiece container in the oil; after the sheet workpiece is immersed in oil for a set time, the controller 8 controls the motor to start again, drives the winch 9 to rewind and retract the steel cable 10, and the lifting frame 7 slides up along the guide groove 601a on the column 601 under the traction force generated by the steel cable 10 to make the workpiece container leave the oil and discharge the excess oil on the sheet workpiece.

[0029] In this embodiment, the controller 8 is a conventional servo controller 8 in the prior art, and the servo controller 8 has a built-in timing module; in this embodiment, the motor is a conventional servo motor 13 in the prior art, and the servo controller 8 controls the servo motor 13 to start, so as to drive the winch 9 to reel in or unreel the steel cable 10, thereby realizing the ascent or descent of the lifting frame 7. At the same time, by presetting the oil immersion time in the timing module, the servo controller 8 controls the servo motor 13 to start accordingly according to the preset oil immersion time, thereby realizing the uniformity of the oil immersion time of the sheet workpiece and effectively ensuring the product quality.

[0030] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A powder metallurgy sintering sheet workpiece oil immersion machine, characterized in that: The invention comprises an oil immersion container and a workpiece container arranged on the oil immersion path, and a travel mechanism which can move the workpiece container into the oil immersion container and immerse the sheet workpiece in the oil during oil immersion. The workpiece container is provided with a limiting structure which can arrange the sheet workpieces at intervals and keep them in an upright state.

2. The powder metallurgy sintering sheet workpiece oil immersion machine according to claim 1, characterized in that: The workpiece container has a receiving cavity for accommodating a plurality of sheet workpieces, the workpiece container is provided with a plurality of partitions for dividing the receiving cavity into a plurality of receiving grooves, and the receiving grooves are provided with limiting members for placing the sheet workpieces upright in the receiving grooves and arranging them at equal intervals along the length direction of the receiving grooves.

3. The powder metallurgy sintering sheet workpiece oil immersion machine according to claim 2, characterized in that: The limiting members are slots arranged in pairs on the two side walls of the receiving groove in the width direction, and the top ends of the slots form slot openings for inserting sheet-shaped workpieces.

4. The powder metallurgy sintering sheet workpiece oil immersion machine according to claim 3, characterized in that: A plurality of oil holes for circulating oil are provided on the bottom plate and the side plates of the workpiece container and on the partition plate.

5. The powder metallurgy sintering sheet workpiece oil immersion machine according to claim 4, characterized in that: The slots on two adjacent storage slots are staggered.

6. The powder metallurgy sintering sheet workpiece oil immersion machine according to any one of claims 1 to 5, characterized in that: The travel mechanism includes a gantry, a lifting frame movably arranged on the gantry, a driving mechanism for driving the lifting frame to rise and fall, and a controller arranged on the gantry, and the workpiece container is placed on the lifting frame; the controller is used to control the driving mechanism to drive the lifting frame to descend into the oil immersion container during oil immersion, and immerse the workpiece container in the oil.

7. The powder metallurgy sintering sheet workpiece oil immersion machine according to claim 6, characterized in that: The controller is a servo controller, and the servo controller is equipped with a timing module capable of presetting the oil immersion time.

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