A post-treatment device for collecting erosion products assisted by short arc machining

Abstract

The present invention is applicable to the field of special processing technologies, and provides a post-treatment device for collecting and processing erosion products assisted by short arc, which includes a working medium inlet and a separation and dehydration mechanism. The separation and dehydration mechanism is used for grading and filtering the mixture of erosion particles and the working medium input from the working medium inlet, and dehydrating the obtained erosion particles after screening. The post-treatment device for collecting and processing erosion products assisted by short arc provided by the present invention can collect erosion particles with different particle sizes in layers. The rotation of the filter element during the collection process can effectively avoid the accumulation and blockage of local erosion particles, has strong applicability, and can perform anti-oxidation and dehydration and drying treatments on the erosion particles, can effectively solve the problem of erosion particle loss in short arc machining, and has a simple structure and is convenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of special processing, and particularly relates to a post-treatment device for collecting and processing the erosion products assisted by short arc machining. Background Art

[0002] With the rapid progress of science and technology, under various extreme working environments, the requirements for various properties of materials are constantly increasing. New high-hardness and high-wear-resistant materials are constantly emerging and widely used. However, due to the high hardness of such materials, traditional mechanical cold processing methods not only have low processing efficiency, but even damage the processing equipment. To solve this problem, the short arc machining technology has emerged.

[0003] The short arc machining technology refers to forming an ion channel between electrodes to convert electrical energy into heat energy, melting the material to be processed into small droplets, and ejecting them from between the electrodes under a gas-liquid mixed medium with a certain pressure to achieve the purpose of eroding the material. Since the short arc machining technology overcomes the drawbacks of macroscopic contact in traditional mechanical machining and does not need to consider the hardness of the material, it is widely used in the field of special processing.

[0004] However, during the short arc machining process, the small droplets eroded between the electrodes form metal small particles after cooling. The research on the particle morphology is of great significance for the short arc machining mechanism. However, the traditional short arc machine tools do not install particle collection devices, resulting in the loss of particles and the waste of resources. Summary of the Invention

[0005] The purpose of the embodiment of the present invention is to provide a post-treatment device for collecting and processing the erosion products assisted by short arc machining, aiming to solve the problem that the traditional short arc machine tools do not install particle collection devices, resulting in the loss of particles and the waste of resources.

[0006] The embodiment of the present invention is implemented as follows. A post-treatment device for collecting and processing the erosion products assisted by short arc machining, the device includes:

[0007] Working medium inlet;

[0008] A separation and dehydration mechanism for grading and filtering the mixture of erosion particles and the working medium input from the working medium inlet, and dehydrating the screened erosion particles.

[0009] The separation and dehydration mechanism includes: an outer housing; a filtration and collection unit disposed in the outer housing for grading and filtering the mixture and collecting the filtered erosion particles; a driving mechanism installed on the outer housing for driving the filtration and collection unit to rotate to dehydrate the erosion particles.

[0010] The filtering and collecting unit includes a plurality of filtering elements, and the filtering precision of the filtering elements gradually increases along the contact sequence of the filtering elements with the mixture. The plurality of filtering elements rotate synchronously under the drive of the drive mechanism.

[0011] The drive mechanism includes a first drive member and a connecting member connecting the first drive member and the filtering and collecting unit.

[0012] It further includes a drying mechanism for drying the dewatered erosion particles in the separation and dehydration mechanism.

[0013] It further includes a liquid storage structure connected to the separation and dehydration mechanism. An anti-oxidation liquid chamber for storing anti-oxidation liquid is provided in the liquid storage structure, and the anti-oxidation liquid in the liquid storage structure is input into the separation and dehydration mechanism through a second pumping mechanism.

[0014] It further includes a flushing mechanism installed on the processing tank of the short-arc machine tool for providing a working medium for the short-arc machine tool, flushing the erosion particles in the processing tank, and feeding the mixture into the working medium inlet together.

[0015] The flushing mechanism includes:

[0016] A frame,

[0017] A flushing member installed on the frame for inputting a working medium into the processing tank;

[0018] A second drive member installed on the frame for driving the flushing member to reciprocate swing at a set angle.

[0019] A working medium chamber for storing a working medium is further provided in the liquid storage structure, and the working medium chamber is connected to the flushing member through a first pumping mechanism.

[0020] Both the working medium chamber and the anti-oxidation liquid chamber are connected to the separation and dehydration mechanism through pipelines, and a switching mechanism for switching the opening and closing states of the pipelines is provided between the two pipelines for opening and closing the corresponding pipelines to enable the anti-oxidation liquid to flow back into the anti-oxidation liquid chamber and enable the working medium to flow back into the working medium chamber.

[0021] The post-treatment device for collecting and processing the erosion products in short-arc assisted machining provided by the embodiment of the present invention can collect erosion particles of different particle sizes in layers. The rotation of the filtering elements during the collection process can effectively avoid the accumulation and blockage of local erosion particles, has strong applicability, and can perform anti-oxidation and dehydration drying treatments on the erosion particles, can effectively solve the problem of erosion particle loss in short-arc machining, and has a simple structure and is convenient to use. Description of the Drawings

[0022] Figure 1Schematic structural diagram of a post-treatment device for collecting and processing erosion products assisted by short arc in an embodiment of the present invention;

[0023] Figure 2 Schematic structural diagram of a separation and dehydration mechanism in a post-treatment device for collecting and processing erosion products assisted by short arc in an embodiment of the present invention;

[0024] Figure 3 Schematic structural diagram of a liquid flushing mechanism in a post-treatment device for collecting and processing erosion products assisted by short arc in an embodiment of the present invention;

[0025] Figure 4 Schematic structural diagram of a liquid storage structure in a post-treatment device for collecting and processing erosion products assisted by short arc in an embodiment of the present invention;

[0026] Figure 5 Schematic structural diagram of a driving mechanism in a post-treatment device for collecting and processing erosion products assisted by short arc in an embodiment of the present invention;

[0027] Figure 6 Schematic structural diagram of a drying mechanism in a post-treatment device for collecting and processing erosion products assisted by short arc in an embodiment of the present invention.

[0028] In the drawings: 1 - Working medium inlet, 2 - Separation and dehydration mechanism, 3 - Liquid flushing mechanism, 4 - Liquid storage structure, 5 - Driving mechanism, 6 - Drying mechanism, 21 - Sleeve, 22 - First filter element, 23 - Second filter element, 24 - Third filter element, 25 - Anti-oxidation liquid inlet pipe, 26 - Stepping motor I, 27 - Flap, 31 - Frame, 32 - Liquid flushing pipe, 33 - Clip, 34 - Stepping motor II, 41 - Box body, 42 - Box cover, 43 - Driving motor one, 44 - Water pump one, 45 - Driving motor two, 46 - Water pump two, 47 - Water outlet valve, 48 - Liquid outlet valve, 49 - Sealing ring one, 410 - Sealing ring two, 411 - Moving pulley, 51 - Bearing base, 52 - Deep groove ball bearing, 53 - Transmission shaft, 54 - Bevel gear set, 55 - Gear shaft, 56 - Bracket, 57 - Stepping motor III, 58 - Spring gasket, 61 - Ring-shaped infrared drying lamp, 62 - Sleeve end cover. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0031] As Figure 1As shown in the figure, a post-treatment device for collecting erosion products assisted by a short arc provided by an embodiment of the present invention includes:

[0032] A working medium inlet 1 and a separation and dehydration mechanism 2. Of course, the working medium inlet 1 and the separation and dehydration mechanism 2 are connected to each other. Among them, the working medium inlet 1 is used to input a mixture composed of erosion particles and a working medium into the separation and dehydration mechanism 2, and the separation and dehydration mechanism 2 is used to dehydrate the mixture to obtain erosion particles.

[0033] In the embodiment of the present invention, the working medium inlet 1 and the separation and dehydration mechanism 2 can classify and screen the erosion particles generated during the short arc machining process, and finally dehydrate them to obtain erosion particles for subsequent continuous processing.

[0034] As Figure 2 shown, as a preferred embodiment of the present invention, the separation and dehydration mechanism 2 includes a housing, a filtering and collecting unit, and a driving mechanism 5. The filtering and collecting unit is arranged in the housing.

[0035] Specifically, the filtering and collecting unit includes a plurality of filtering elements. In this embodiment, the number of filtering elements is three, namely a first filtering element 22, a second filtering element 23, and a third filtering element 24. And the first filtering element 22, the second filtering element 23, and the third filtering element 24 are in contact with the mixture in sequence. Here, the first filtering element 22, the second filtering element 23, and the third filtering element 24 are all arranged in a cylindrical shape, coaxially arranged and nested with each other. That is, the first filtering element 22 is in the innermost layer, the third filtering element 24 is in the outermost layer, and the filtering accuracy of the first filtering element 22, the second filtering element 23, and the third filtering element 24 gradually increases. The plurality of filtering elements rotate synchronously under the drive of the driving mechanism 5. That is, the end openings of the first filtering element 22, the second filtering element 23, and the third filtering element 24 can be fixed together by mounting parts such as screws and placed into the housing to achieve synchronous rotation. The housing can be a cylindrical sleeve 21.

[0036] In this embodiment, the filtering and collecting unit is driven to rotate by a driving mechanism 5 arranged on the housing. Specifically, the driving mechanism 5 includes a first driving member and a connecting member connecting the first driving member and the filtering and collecting unit. In this embodiment, the first driving member is a stepping motor III 57, and the connecting member is a bevel gear set 54. For details, please refer to Figure 5, the output end of the stepper motor 26 is connected to the gear shaft 55. Here, the gear shaft 55 serves as the input end of the bevel gear set 54. The gear shaft 55 is installed through the bracket 56. The output end of the bevel gear set 54 is connected to the filtration and collection unit through the transmission shaft 53 and the spring washer 58. The end of the transmission shaft 53 can be connected to the third filter element 24 by means of threads, screws, etc. The other end of the transmission shaft 53 is also installed on the bearing base 51 through a deep groove ball bearing 52. When the stepper motor III 57 outputs power, under the action of the bevel gear set 54, it can drive the rotation of the filtration and collection unit.

[0037] Of course, the transmission member in this embodiment can also be a spur gear set, a synchronous belt and other transmission devices, which are not specifically limited herein.

[0038] In actual application, the mixture composed of the eroded particles and the working medium is input into the separation and dehydration mechanism 2 through the working medium inlet 1. In the separation and dehydration mechanism 2, after being processed by the filter elements, namely the first filter element 22, the second filter element 23 and the third filter element 24, the eroded particles are classified and stored in the first filter element 22, the second filter element 23 and the third filter element 24. Then the stepper motor 26 is started. Under the action of the bevel gear set 54, it can drive the rotation of the filtration and collection unit to dehydrate the eroded particles, and then the dehydrated eroded particles can be taken out.

[0039] As Figure 6 shown, as a preferred embodiment of the present invention, although dehydration can remove the moisture of the eroded particles, the moisture removal is not thorough enough. Therefore, a drying mechanism is also disclosed in this embodiment for drying the dehydrated eroded particles.

[0040] Specifically, in this embodiment, the drying mechanism is a ring-shaped infrared drying lamp 61. The ring-shaped infrared drying lamp 61 is installed on the sleeve end cover 62 through buckles, screws, etc. The sleeve end cover 62 is detachably installed at the opening of the outer housing. The specific detachable method can be buckles, screws, etc.

[0041] The drying mechanism can also be an electric heating tube, a microwave heater, etc., as long as it can achieve heating and drying, which are not specifically limited herein.

[0042] As Figure 4 shown, as a preferred embodiment of the present invention, since in actual application, the eroded particles are easily oxidized after dehydration and drying, which affects subsequent processing. Therefore, a liquid storage structure 4 connected to the separation and dehydration mechanism 2 is also disclosed in this embodiment. An anti-oxidation liquid cavity for storing the anti-oxidation liquid is provided in the liquid storage structure 4; the anti-oxidation liquid in the liquid storage structure 4 can be input into the separation and dehydration mechanism 2 through the pumping mechanism II.

[0043] Its main purpose is to input an anti-oxidation liquid into the separation and dehydration mechanism 2 before dehydration. After the eroded particles are soaked in the anti-oxidation liquid, the anti-oxidation liquid is discharged, and then the eroded particles are dehydrated and dried, which can improve the anti-oxidation performance of the eroded particles.

[0044] As Figure 3 and 4 shown, as a preferred embodiment of the present invention, a flushing mechanism 3 is also disclosed, which is installed on the processing tank of the short arc machine tool, used to provide a working medium for the short arc machine tool, and flush the eroded particles in the processing tank, and send the mixture into the working medium inlet 1 together. Specifically, a pumping device can be added at the bottom of the processing tank to pump the mixture after processing into the working medium inlet 1.

[0045] The flushing mechanism 3 includes a frame 31, a flushing member and a second driving member. The flushing member is installed on the frame 31 and used to input a working medium into the processing tank; the second driving member is installed on the frame 31 and used to drive the flushing member to reciprocate swing at a set angle, that is, the second driving member can drive the flushing member to reciprocate swing, which can promote the full contact between the working medium and the etched particles, rapidly cool the etched particles, and also facilitate the full cleaning of the etched particles.

[0046] Specifically, in this embodiment, the flushing member can be a flushing pipe 32, and through holes for liquid outlet are provided on its surface. The flushing pipe 32 is installed on the frame 31 through a clip 33. The second driving member is a stepping motor II 34, which is used to drive the flushing pipe 32 to reciprocate swing at a set angle. The frame 31 is a square frame, and the flushing pipes 32 are distributed around the inner wall of the square frame.

[0047] Correspondingly, in order to simplify the technical solution, in this embodiment, the working medium is stored in the liquid storage structure 4, that is, a working medium cavity for storing the working medium is also provided in the liquid storage structure 4, and the working medium cavity is connected to the flushing member through a first pumping mechanism. In this way, there is a working medium cavity and an anti-oxidation liquid cavity in the liquid storage structure 4. A partition can be provided in the middle of the box body 41 to divide the box body 41 into a working medium cavity and an anti-oxidation liquid cavity. Correspondingly, the working medium and the anti-oxidation liquid in the working medium cavity and the anti-oxidation liquid cavity can be respectively input into the flushing mechanism 3 and the separation and dehydration mechanism 2 through the first pumping mechanism and the second pumping mechanism.

[0048] Regarding the second pumping mechanism, it includes a second driving motor 45 and a second water pump 46. The second water pump 46 is driven by the second driving motor 45 to operate. The liquid inlet and outlet of the second water pump 46 are respectively connected to the anti-oxidation liquid cavity and the separation and dehydration mechanism 2. Specifically, it can be connected to the outer shell of the separation and dehydration mechanism 2 through an anti-oxidation liquid inlet pipe 25.

[0049] Similarly, for the first pumping mechanism, it includes a first driving motor 43 and a first water pump 44. The first water pump 44 is driven by the first driving motor 43 to operate. The liquid inlet and outlet of the first water pump 44 are respectively connected to the working medium chamber and the liquid filling mechanism 3.

[0050] In addition, both the first pumping mechanism and the second pumping mechanism are installed on the box cover 42 provided at the opening of the box body 41. At the positions of the box body 41 corresponding to the working medium chamber and the anti-oxidation liquid chamber, a water outlet valve 47 and a liquid outlet valve 58 are respectively provided. Of course, a first sealing ring 49 and a second sealing ring 410 are respectively provided between the water outlet valve 47 and the liquid outlet valve 58 and the box body 41. Moreover, in order to facilitate the movement of the liquid storage structure 4, a plurality of moving pulleys 411 are installed at the bottom of the box body 41.

[0051] Both the working medium chamber and the anti-oxidation liquid chamber are connected to the separation and dehydration mechanism 2 through pipelines, and a switching mechanism for switching the opening and closing states of the pipelines is provided between the two pipelines, which is used to open and close the corresponding pipelines, so that the anti-oxidation liquid can flow back into the anti-oxidation liquid chamber and the working medium can flow back into the working medium chamber.

[0052] Specifically, the switching mechanism includes a baffle 27 and a stepping motor I26. Among them, the baffle 27 is installed on the output end of the stepping motor I26 and is used to close the opening of the pipeline. When it rotates, the baffle 27 can move to the opening of another pipeline to close the pipeline. Of course, in actual application, the switching mechanism can also be a valve device such as a solenoid valve, as long as it can realize the control of the opening and closing of the pipeline.

[0053] In the above embodiment of the present invention, a post-treatment device for collecting and processing the erosion products assisted by short arcs is provided, which can collect the erosion particles of different particle sizes in layers. The rotation of the filter element during the collection process can effectively avoid the accumulation and blockage of local erosion particles, has strong applicability, and can perform anti-oxidation and dehydration drying treatments on the erosion particles, can effectively solve the problem of erosion particle loss in short arc machining, and has a simple structure and is convenient to use.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A post-treatment device for collecting erosion products assisted by short arc machining, characterized in that, the device comprises: a working medium inlet; a separation and dehydration mechanism for classifying and filtering the mixture of erosion particles and the working medium input from the working medium inlet, and dehydrating the screened erosion particles; further comprising a liquid storage structure connected to the separation and dehydration mechanism, wherein an anti-oxidation liquid chamber for storing the anti-oxidation liquid is provided in the liquid storage structure, and the anti-oxidation liquid in the liquid storage structure is input into the separation and dehydration mechanism through a second pumping mechanism; a flushing mechanism installed on the machining groove of the short arc machine tool for providing the working medium for the short arc machine tool and flushing the erosion particles in the machining groove, and feeding the mixture into the working medium inlet together. Wherein, the flushing mechanism comprises a frame, a flushing member and a second driving member. The flushing member is a flushing pipe with through holes for liquid outlet on its surface. The flushing pipe is installed on the frame through a clamp for inputting the working medium into the machining groove. The second driving member is installed on the frame for driving the flushing member to reciprocate swing at a set angle; a working medium chamber for storing the working medium is further provided in the liquid storage structure, and the working medium chamber is connected to the flushing member through a first pumping mechanism; both the working medium chamber and the anti-oxidation liquid chamber are connected to the separation and dehydration mechanism through pipelines, and a switching mechanism for switching the opening and closing states of the pipelines is provided between the two pipelines for opening and closing the corresponding pipelines to enable the anti-oxidation liquid to flow back into the anti-oxidation liquid chamber and the working medium to flow back into the working medium chamber.

2. The post-treatment device for collecting erosion products assisted by short arc machining according to claim 1, characterized in that, the separation and dehydration mechanism comprises: an outer shell; a filtration and collection unit provided in the outer shell for classifying and filtering the mixture and collecting the filtered erosion particles; a driving mechanism installed on the outer shell for driving the filtration and collection unit to rotate to dehydrate the erosion particles.

3. The post-treatment device for collecting erosion products assisted by short arc machining according to claim 2, characterized in that, the filtration and collection unit comprises a plurality of filter elements, and the filtration accuracy of the filter elements gradually increases along the order of contact between the filter elements and the mixture. The plurality of filter elements rotate synchronously under the drive of the driving mechanism.

4. The post-treatment device for collecting erosion products assisted by short arc machining according to claim 3, characterized in that, the driving mechanism comprises a first driving member and a connecting member connecting the first driving member and the filtration and collection unit.

5. The post-treatment device for collecting erosion products assisted by short arc machining according to claim 1 or 2 or 3 or 4, characterized in that, further comprising a drying mechanism for drying the dehydrated erosion particles in the separation and dehydration mechanism.

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