CN211517197U - Consolidation polishing pad preparation device with complex flow channel structure - Google Patents

Abstract

The utility model discloses a preparation device for a consolidated grinding and polishing pad with a complex flow channel structure, which comprises a feeding system, a processing system and an XYZ motion system electrically connected with a control system. The feeding system comprises a feeding box, a conveying pipe and a A feeding device, the two ends of the conveying pipe are respectively connected with the feeding box and the feeding device, and the processing system includes a workbench arranged in the box. The utility model can realize the preparation of different types of fixed abrasive grinding pads with complex internal flow channels, can integrate light curing and thermal curing, realize semi-automatic production, and greatly improve the preparation efficiency of the grinding pads.

Description

A device for preparing a consolidated grinding and polishing pad with a complex flow channel structure

technical field

The utility model relates to the technical field of ultra-precision machining, in particular to a preparation device for a consolidated grinding and polishing pad with a complex flow channel structure.

Background technique

As a new development trend of ultra-precision machining, the preparation of grinding and polishing pads has always been a topic of concern. In addition, its pore structure has a great influence on the processing quality of the polishing pad. However, the pore structure of the bonded abrasive polishing pad prepared by the prior art is simple, cannot form complex flow fields and flow channels, and is difficult to meet the requirements of infusion during processing. and the need for input debris. The traditional manufacturing process of bonded abrasive pads is: mixing of abrasive and polymer → mechanical stirring → ultrasonic dispersion → resin matrix → injection into mold light/thermosetting molding → post-curing treatment → finished product. According to the traditional production process, the pores are mainly realized by pore-forming agents, and the size and distribution of the pores are difficult to control. and poor accommodation. In addition, in the traditional preparation method, for the preparation of fixed abrasives with different surface convex shapes or sizes, corresponding molds need to be prepared separately, resulting in increased cost and decreased efficiency. Therefore, the existing fixed abrasive grinding and polishing pads have complicated preparation process, high preparation cost, and the performance of the prepared fixed abrasive grinding and polishing pads cannot meet the needs of processing.

Utility model content

The purpose of this utility model is to provide a consolidated grinding and polishing pad preparation device with a complex flow channel structure, so as to solve the problems existing in the above-mentioned prior art and simplify the process of consolidating the abrasive grinding pad. All in one, reduce cost, improve efficiency and realize semi-automatic production.

In order to achieve the above purpose, the utility model provides the following scheme: the utility model provides a consolidated grinding and polishing pad preparation device with a complex flow channel structure, including a feeding system, a processing system and an XYZ motion system electrically connected with the control system , the feeding system includes a material box, a conveying pipe and a feeding device, the two ends of the conveying pipe are respectively connected with the material box and the feeding device, and the processing system includes a workbench arranged in the box, so The XYZ motion system includes an I-shaped guide rail group and an electric jack, the blanking device is installed on the I-shaped guide rail group and is located on the top of the worktable, the electric jack is embedded in the bottom of the box body, and the A workbench is mounted on the electric jack.

Preferably, an agitator driven by a second motor is arranged inside the feeding device, a conical groove is arranged on the upper end of the feeding opening inside the feeding device, and the end of the feeding opening is a nozzle; the feeding device There is a preheating resistance wire on the outer periphery.

Preferably, a heating resistance wire and an ultraviolet lamp are arranged in the box.

Preferably, the I-shaped guide rail group includes a Y-axis lead screw and two X-axis lead screws arranged in parallel, and two ends of the Y-axis lead screw are respectively slidably arranged on the two X-axis lead screws through a lead screw nut, The blanking device is fixedly connected with the lead screw nut of the Y-axis lead screw.

Preferably, both ends of the two X-axis lead screws are fixedly installed on the inner side wall of the box body through support plates, and one end of the X-axis lead screws extends out of the box body and is connected with a drive Motor three; one end of the Y-axis lead screw is drivingly connected with a drive motor one.

Preferably, two guide rails are connected between the support plates on both sides of the X-axis lead screw, the two guide rails are located symmetrically on both sides of the lead screw, and the slider is slidably installed on the two guide rails and is connected with the X-axis lead screw. The lead screw nut is fixedly connected; the two ends of the Y-axis lead screw are respectively fixedly connected with the sliders on the two X-axis lead screws.

Preferably, two guide rails are connected between the first two sliders, the two guide rails are symmetrically located on both sides of the Y-axis lead screw, and the second slider is slidably installed on the two guide rails and fixed with the lead screw nut of the Y-axis lead screw connection; the unloading device is fixed on the second sliding block.

Preferably, a door is provided on one side of the box body, and one side of the door is connected with the box body through a hinge hinge.

The preparation method applied to the above-mentioned consolidated grinding and polishing pad preparation device with complex flow channel structure comprises the following steps:

1) Design the complex flow field and flow channel structure in the bonded abrasive polishing pad according to the processing needs; 2) Select the abrasive type, particle size and concentration required for the preparation of the bonded abrasive polishing pad; choose to prepare the bonded abrasive polishing pad The type and concentration of the matrix material required for the pad and the type and concentration of the relevant accelerators and curing agents; 3) respectively add the mixture with the accelerator and the curing agent after sufficient stirring to the mixture with a complex flow channel structure. 4) Use the preparation device to perform 3D printing according to the designed structure; if it is heat-induced curing, start the heating mechanism, if it is photo-induced curing, start the UV light source ;5) Post-curing the printed bonded abrasive polishing pad; heating for 10-30min.

The utility model has achieved the following technical effects with respect to the prior art:

The utility model skillfully integrates the 3D printing technology and the production process of the traditional fixed abrasive grinding pad. The use of modern hot 3D printing technology can realize the orderly pores of the polishing pad; the use of this equipment can get rid of the constraints of the mold; the light curing and thermal curing are integrated into one, which can realize the random switching of light curing and thermal curing, avoiding Some abrasives, such as cerium oxide, cannot be cured by light curing, but thermal curing is selected; the production efficiency of polishing pads is improved; semi-automatic production can be realized.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of main body part in the present utility model;

Figure 2 is a schematic diagram of the internal structure of the box in the present invention;

Figures 3a and 3b are schematic views of the structure of the blanking device of the present invention;

Fig. 4 is the structural representation of the XY motion system of the present invention;

Fig. 5 is the schematic diagram of the upper and lower two isometric axonometric measurements of the present utility model;

Figure 6 is a schematic diagram of the main structure of the present invention.

In the figure: 1. Door; 2. Hinged hinge; 3. Safety valve; 4. Box body; 5. Ultraviolet lamp; 6. Lamp holder; 7. Heating resistance wire; 8. Y-axis screw; 9. Electric wire; 10. Motor one; 11. Slider one; 12. Feeding pipe one; 13. Pump body; 14. Feeding pipe two; 15. Motor two; 16. Slider two; 17. Micro electric jack; 18. Workbench ;19, agitator; 20, feeding port; 21, motor three; 22, nozzle; 23, X-axis screw; 24, support plate; 25 joint; 26, preheating resistance wire; 27, material box; 28 outside Take over; 29, data cable; 30, computer; 31, blanking device; 32 connection block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The purpose of this utility model is to provide a consolidated grinding and polishing pad preparation device with a complex flow channel structure, so as to solve the problems existing in the above-mentioned prior art and simplify the process of consolidating the abrasive grinding pad. All in one, reduce cost, improve efficiency and realize semi-automatic production.

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1-6, this embodiment provides a preparation device for a consolidated grinding and polishing pad with a complex flow channel structure and a preparation method thereof. The preparation device includes: a feeding system, a processing system, an XYZ motion system, and a control system Four main parts. It can achieve controllable porosity, save mold, and integrate light/thermal curing.

Further, the feeding system sends the raw material from the feeding tank to the feeding device 31 in the box 4 through the pressure of the pump. When the raw material is transported to the feeding device 31, the internal The agitator 19 stirs the raw materials again. The agitator 19 is driven by the second motor 15 to avoid internal accumulation caused by accumulation at certain positions during the transportation of the raw materials. The preheating resistance wire 26 is arranged around the unloading device 31. The raw material is preheated, and the upper end of the feeding port 20 inside the feeding device 31 is provided with a conical groove, which is to enable the raw material to continuously flow from the feeding port 20 to the nozzle 22, so as to realize a fixed abrasive polishing pad. Function to prepare feed.

Further, in the processing system, the raw materials are sprayed through the nozzle 22 and then piled up layer by layer on the table 18 under the XYZ motion system, and different curing methods are selected according to the different abrasives. Working temperature, the inside of the box body 4 is irradiated by the ultraviolet light to reach the working temperature (the ultraviolet lamp 5 is fixed on the top of the box body 4 through the lamp frame 6). The wire 7 or the ultraviolet lamp 5, the raw materials stacked layer by layer will be solidified soon, so as to realize the solidification of the fixed abrasive polishing pad and complete the preparation function of the fixed abrasive polishing pad.

Further, the XYZ motion system is composed of an I-shaped guide rail group and a miniature electric jack 17 . The pattern, pore, groove depth of the polishing pad, and getting rid of mold constraints are all realized by the XYZ motion system. The I-shaped guide rail is a mechanism that controls the XY axis motion system. It consists of two ball screws, a slider, a motor, and a support plate. The two longitudinal beams of the I-shaped guide rail are fixed in the box 4 through the support plate. The blanking device 31 It is installed on the beam of the I-shaped guide rail group, controlled by a specific software program, and driven by three motors, so as to realize the movement in the XY plane. The movement of the Z axis is mainly completed by the micro electric jack 17, which is embedded in the bottom of the box 4 and controlled by a specific software program and an internal displacement sensor, thereby realizing the movement in the Z axis direction. The XYZ system cooperates with the feeding system and the processing system, so as to realize the preparation function of the fixed abrasive polishing pad. The specific coordination of the XYZ motion system is implemented as follows: The initial position of the XYZ motion system is set by the control system. When the first layer is processed, the Z axis does not move, and the control system controls the XY axis to move in the plane to complete the processing of the first layer. ; When the second layer is processed, the control system controls the Z axis to move down a certain distance with a certain precision. At this time, the control system starts to control the XY axis to move in the plane to complete the stacking of the second layer, and the XYZ motion system moves until the processing is completed. until the polishing pad.

Further, the I-shaped guide rail group includes a Y-axis lead screw 8 and two X-axis lead screws 23 arranged in parallel. The unloading device 31 is fixedly connected with the lead screw nut of the Y-axis lead screw 8 . Both ends of the two X-axis screws 23 are fixedly installed on the inner side wall of the box 4 through the support plate 24, and one end of the X-axis screws 23 extends out of the box 4 and is connected to the motor three 21; One end of the bar 8 is drivingly connected with a motor one 10 . Two guide rails are connected between the support plates 24 on both sides of the X-axis lead screw 23 . The two guide rails are symmetrically located on both sides of the lead screw. The rod nut is fixedly connected; the two ends of the Y-axis lead screw 8 are respectively fixedly connected to the slider one 11 on the two X-axis lead screws 23 . Two guide rails are connected between the two sliders one 11. The two guide rails are symmetrically located on both sides of the Y-axis screw 8. The slider two 16 is slidably installed on the two guide rails and is connected with the lead screw nut of the Y-axis screw 8. Fixed connection; Each motor is connected to a computer 30 through a wire 9 .

A door 1 is provided on one side of the box body 4 , and one side of the door 1 is connected with the box body 4 through a hinge 2 .

Further, the control system consists of a computer 30 and a specific software program. The structural parameters of the polishing pad are all set by a specific software program. The feeding system, the processing system and the XYZ motion system are connected to the computer 30 through the connector assembly, and controlled by the software program, so as to realize the orderly and stable cooperation of each system, and complete the preparation function of the fixed abrasive polishing pad.

Preferably, in order to achieve the function of constant temperature in the box body 4, the connection between the feeding pipe and the box body 4 should be sealed.

Preferably, in order to control the precision of the Z-axis micro-jack, a displacement sensor is installed inside the micro-jack, which can control the precision of the micro-electric jack.

Preferably, in order to improve the movement stroke of the unloading device 31 , two motors for controlling the longitudinal beams of the I-shaped guide rails are installed outside the box body 4 .

Preferably, in order to ensure the safety of the manufacturing process, a safety valve 3 is installed on the top of the box body 4 .

The utility model has a method for preparing a consolidated grinding and polishing pad with a complex flow channel structure: the traditional manufacturing process of the grinding pad is integrated with the modern 3D printing technology; the pattern, pores and grooves of the grinding pad are first designed using a specific software program The depth of the groove→choose the abrasive and the high polymer mixture→put the raw materials into two bins separately→use the equipment of the utility model to process the raw materials→wait 5-10 minutes after finishing the processing to take out the mat.

The utility model can realize controllable pores of the fixed abrasive grinding pad, different types of grinding pads do not need to use different molds, light curing and thermal curing are integrated, semi-automatic production is realized, and the preparation efficiency of the grinding pad is greatly improved.

1 is a schematic diagram of a part of the main body structure in the present utility model, in order to make the main parts display more clearly, the computer 30 and the data line 29 are removed, in the upper and lower isometric axonometric schematic diagrams of FIG. 5 and the main structure schematic diagram of FIG. 6 You can clearly see the location of the computer. It can be seen from FIG. 1 to FIG. 6 that the utility model includes: a feeding system, a processing system, an XYZ motion system, and a control system.

It can be seen in detail from Fig. 1 to Fig. 6 that the specific working process of the feeding system is as follows: the raw material is sent from the feeding pipe 1 12 and feeding pipe 2 14 to the tank by the pressure given by the pump 13 from the feeding tank 27. The feeding device 31 in the body 4, when the raw material is transported to the feeding device 31, the agitator 19 inside the feeding device 31 stirs the raw material again. Due to the internal accumulation caused by the accumulation at certain positions, the upper end of the feeding port 20 inside the feeding device 31 is provided with a conical groove, which is to enable the raw material to continuously flow from the feeding port 20 to the nozzle 22, so as to realize feeding function.

As can be seen in detail from Figure 1, the specific working process of the processing system is: the raw materials are sprayed through the nozzle 22 and then stacked on the table 18 through the XYZ motion system layer by layer. The inner heating resistance wire 7 is thermally cured or the ultraviolet lamp 5 is selected for photocuring, and the raw materials stacked layer by layer will be cured quickly, so as to realize the curing of the bonded abrasive pad and complete the processing function of the bonded abrasive pad.

As can be seen in detail from Figure 1, Figure 2 and Figure 4, the I-shaped guide rail group in the XYZ motion system is the mechanism for controlling the XY axis motion system. Inside the box 4, the unloading device 31 is installed on the beam of the I-shaped guide rail group, controlled by a specific software program, and driven by three motors, so as to realize the movement in the XY plane. The movement of the Z axis is mainly completed by the miniature electric jack 17. The miniature electric jack 17 is embedded in the bottom of the box 4, and its accuracy is controlled by a specific software program and an internal displacement sensor, so as to realize the movement in the Z axis direction. Thereby, the pattern, pores and groove depths of the polishing pad can be controlled, and the constraints of the mold can be eliminated.

As can be seen in detail from FIG. 5, the control system includes: a computer 30, a data line 29, and a specific software program. The control system is used to connect the feeding system, the processing system, and the XYZ motion system, so that the whole system can work orderly and stably, so as to realize the preparation of the bonded abrasive pad.

Under the joint action of the four systems of the feeding system, the processing system, the XYZ motion system and the control system, the porosity of the bonded abrasive pad is controllable, and the processing of different pads no longer requires different molds, light curing and The thermal curing is integrated into one, which can be switched with different processing, realizes semi-automatic production, and greatly improves the preparation efficiency of polishing pads.

The detailed working process of the consolidated grinding and polishing pad preparation device with complex flow channel structure is as follows:

The specific parameters set by the control system include: the initial position of the XYZ motion system, the motion trajectory of the XYZ motion system, and the selection of the purple light 5 or the heating resistance wire 7 according to the needs of light curing or thermal curing. The specific working process: put the raw material into the material box 27, and the pressure given by the pump body 13 makes it from the feeding pipe 12 and the feeding pipe 2 14 to the feeding device 31 in the box body 4. When the raw material is transported When it reaches the feeding device 31, the agitator 19 inside the feeding device 31 stirs the raw materials again, and the agitator 19 is driven by the second motor 15 to avoid internal accumulation caused by accumulation at certain positions during the transportation of the raw materials, and the agitator 19 is driven by the second motor 15. The upper end of the feeding port 20 inside the feeding device 31 is provided with a conical groove, so that the raw material can flow from the feeding port 20 to the nozzle 22 continuously. After the first layer is processed, the control system controls the Z axis to achieve high-precision downward displacement, and the XY axis is also in the control system. The movement in the plane is realized under the control, so as to realize the accumulation and solidification of the second layer of raw materials, and this process is repeated until the processing of the fixed abrasive polishing pad is completed.

The principles and implementations of the present utility model are described with specific examples in the present utility model, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model; meanwhile, for those skilled in the art , according to the idea of the present utility model, there will be changes in the specific implementation and application scope. In conclusion, the content of this specification should not be construed as a limitation on the present invention.

Claims (8)

1. The utility model provides a consolidation is ground and is thrown pad preparation facilities with complicated runner structure which characterized in that: comprises a feeding system, a processing system and an XYZ motion system which are electrically connected with a control system,

the feeding system comprises a material box, a conveying pipe and a discharging device, the two ends of the conveying pipe are respectively connected with the material box and the discharging device, the processing system comprises a workbench arranged in the box body, the XYZ motion system comprises an I-shaped guide rail set and an electric jack, the discharging device is installed on the I-shaped guide rail set and located on the workbench top, the electric jack is embedded at the bottom of the box body, and the workbench is installed on the electric jack.

2. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 1, wherein: a stirrer driven by a motor II is arranged in the blanking device, a conical groove is arranged at the upper end of a blanking port in the blanking device, and a nozzle is arranged at the tail end of the blanking port; and a preheating resistance wire is arranged at the periphery of the blanking device.

3. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 1, wherein: and a heating resistance wire and an ultraviolet lamp are arranged in the box body.

4. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 1, wherein: the I-shaped guide rail set comprises a Y-axis lead screw and two X-axis lead screws arranged in parallel, two ends of the Y-axis lead screw are arranged on the two X-axis lead screws in a sliding mode through lead screw nuts respectively, and the blanking device is fixedly connected with the lead screw nuts of the Y-axis lead screws.

5. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 4, wherein: two ends of the two X-axis lead screws are fixedly arranged on the inner side wall of the box body through a supporting plate, and one end of each X-axis lead screw extends out of the outer side of the box body and is in transmission connection with a driving motor III; one end of the Y-axis lead screw is connected with a first driving motor in a transmission manner.

6. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 5, wherein: two guide rails are connected between supporting plates on two sides of the X-axis screw rod, the two guide rails are symmetrically positioned on two sides of the screw rod, and a first sliding block is slidably installed on the two guide rails and is fixedly connected with a screw rod nut of the X-axis screw rod; and two ends of the Y-axis screw rod are respectively and fixedly connected with the first sliding blocks on the two X-axis screw rods.

7. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 6, wherein: two guide rails are connected between the first sliding blocks, the two guide rails are symmetrically positioned on two sides of the Y-axis lead screw, and the second sliding blocks are slidably mounted on the two guide rails and fixedly connected with a lead screw nut of the Y-axis lead screw; and the blanking device is fixed on the second sliding block.

8. The apparatus for preparing a consolidated lapping pad having a complex flow channel structure according to claim 1, wherein: one side of the box body is provided with a door, and one side of the door is connected with the box body through a hinge.

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