A kind of polishing equipment and method of precision mold

Abstract

The present invention discloses a polishing device and method for a precision mold, and relates to the field of polishing equipment, which includes a polishing machine body, a mold installation box is installed on the polishing machine body, a protective door is movably installed on one side of the mold installation box, a movable seat is installed on the polishing machine body, and a polishing seat for polishing is installed on the movable seat; it also includes an impurity extraction device and a synchronous opening and closing device. It should be noted that in an embodiment of the present invention, during polishing, the extraction pump is started at the same time, and the extraction pump extracts the cutting fluid around the polishing seat synchronously through the extraction pipe, the transfer box and the extraction rack, so as to avoid the continuous accumulation of debris on the polishing seat during polishing, resulting in poor polishing effect; in addition, when the cutting fluid passes through the transfer box, it is filtered by the filter plate, and during polishing, the two sliding covers slide close to close the mold installation box, so as to effectively shield the mold installation box, and avoid the problem of cutting fluid being splashed during polishing.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, and in particular to a polishing equipment and method for a precision mold. Background Art

[0002] Precision molds are molds used to produce parts with precise shape and size requirements. They have the characteristics of high precision, high stability, high wear resistance, high heat resistance and high processing difficulty. This type of mold can manufacture various types of parts, including metal parts, plastic parts, ceramic parts, etc., and is widely used in the production of various industries. In the process of precision mold production, in order to meet production standards, it is necessary to use a mirror spark machine to polish the mold. It is mainly used for precision processing of complex mold cavities, especially complex curved surfaces that are not convenient for polishing.

[0003] It should be noted that when the mirror spark machine is polishing, the mold is installed in the installation box of the mirror spark machine, and then the cutting fluid is injected, and the polishing seat is driven to polish the mold through the multi-directional movement of the moving seat. However, during polishing, the debris generated by polishing is directly accumulated around the mold, so that the cutting fluid contains a large amount of metal debris, causing the polishing seat to be affected by the debris during polishing, resulting in poor polishing quality. In addition, during polishing, the cutting fluid is easily splashed, causing the environment around the mirror spark machine to be polluted. At the same time, a large amount of cutting fluid cannot be effectively recovered, resulting in a waste of cutting fluid. Summary of the invention

[0004] The purpose of the present invention is to provide a polishing device and method for a precision mold to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A polishing device for a precision mold, comprising a polishing body, a mold installation box is installed on the polishing body, a protective door is movably installed on one side of the mold installation box, a moving seat is installed on the polishing body, and a polishing seat for polishing is installed on the moving seat;

[0007] It also includes an impurity extraction device, which is installed on the polishing seat and is used to extract the cutting fluid around the polishing seat; the impurity extraction device includes an extraction frame, which is installed on the polishing seat, and a plurality of extraction heads are installed around the inner side of the extraction frame, and an extraction pump is installed on one side of the extraction frame, and an extraction pipe and a discharge pipe are installed on the extraction pump, and the extraction pipe extracts the cutting fluid and discharges it through the discharge pipe;

[0008] It also includes a synchronous opening and closing device, which is installed on the mold installation box and is used to close the mold installation box; the synchronous opening and closing device includes two sliding covers, both of which are slidably installed on the top side of the mold installation box, and the two sliding covers are close to each other to close and block the mold installation box, and two opening and closing rotating rods are rotatably installed on the polishing machine body, and the two opening and closing rotating rods are movably installed on the two sliding covers respectively, and the opening and closing rotating rods are rotated to push the sliding covers to move;

[0009] An auxiliary shielding device is installed on the synchronous opening and closing device, and the auxiliary shielding device is used to perform follow-up shielding on the mold installation box; the auxiliary shielding device includes two sliding frames, and the two sliding frames are respectively slidably installed on the two sliding covers, and magnetic frames are slidably installed on the two sliding frames, and a first folding cloth is connected between the magnetic frame and the sliding frame, and a second folding cloth is connected between the sliding frame and the sliding cover.

[0010] Furthermore, in a preferred embodiment of the present invention, the impurity extraction device further comprises a connecting frame, the connecting frame is mounted on the extraction frame, and the extraction pump is mounted on the connecting frame;

[0011] Two suspension rods are movably installed in the extraction frame, and both of the suspension rods are installed on the bottom side of the polishing seat.

[0012] Furthermore, in a preferred embodiment of the present invention, a closed enclosure is installed at the bottom end of the two suspension rods, and the closed enclosure is used to synchronously close the multiple extraction heads;

[0013] Two return springs are installed on the top side of the extraction frame, and the top ends of the return springs are installed on the bottom side of the polishing seat.

[0014] Further, in a preferred embodiment of the present invention, a transfer box is installed on one side of the extraction frame, the transfer box is connected to the extraction pipe, and a filter plate for filtering cutting fluid is installed in the transfer box;

[0015] A cleaning brush is provided in the transfer box, and the cleaning brush is used to clean the filter plate. A cleaning frame is installed on the filter plate. A push-pull groove is provided on the connecting frame. One end of the cleaning frame extends into the push-pull groove and is installed with a return spring. The other end of the return spring is installed on the inner wall of the push-pull groove.

[0016] Furthermore, in a preferred embodiment of the present invention, a driving shaft is installed on the extraction pump, a pushing frame is sleeved on the driving shaft, the cleaning frame is in contact with the pushing frame, and the driving shaft rotates through the pushing frame to push the cleaning frame to move.

[0017] Furthermore, in a preferred embodiment of the present invention, the synchronous opening and closing device further comprises two driving columns, and the two driving columns are respectively mounted on the two opening and closing rotating rods;

[0018] A pressing seat is movably installed on one side of the polishing body, and the pressing seat is squeezed and retracted by the movable seat. Two driving rods are installed on the bottom side of the pressing seat. Driving grooves are opened on the two driving columns, and the bottom ends of the two driving rods extend into the two driving grooves respectively.

[0019] Furthermore, in a preferred embodiment of the present invention, two mounting shafts are rotatably mounted on one side of the polishing machine body, and the two driving columns are respectively mounted on the two mounting shafts;

[0020] A sliding groove is provided on one side of the two sliding covers, and a driving shaft is rotatably installed on the two opening and closing rotating rods, and the two driving shafts are movably installed in the two sliding grooves respectively;

[0021] A blocking frame is installed on one side of the two sliding covers, and the sliding covers move to drive the blocking frame to block the protective door.

[0022] Furthermore, in a preferred embodiment of the present invention, an extrusion groove is provided on one side of the polishing body, and the extrusion seat is movably installed in the extrusion groove;

[0023] A support spring is installed on the inner wall of the extrusion groove, and the other end of the support spring is installed on the extrusion seat.

[0024] Furthermore, in a preferred embodiment of the present invention, a sliding groove is provided on one side of the sliding frame, a sliding block is slidably installed in the sliding groove, and the sliding block is installed on the magnetic frame;

[0025] A return spring is installed on one side of the sliding block, and the other end of the return spring is installed on the magnetic suction frame.

[0026] A method for polishing a precision mold is carried out according to the above-mentioned polishing equipment for the precision mold, comprising the following steps:

[0027] S1. The polishing machine body is started, and the moving seat is driven to move downward and forward, so that the moving seat no longer compresses the extrusion seat, the extrusion seat is reset, and drives the two driving rods to move, the two driving rods drive the two driving columns to rotate, and the two driving columns drive the two sliding covers to slide close through the two opening and closing rotating rods, thereby closing the mold installation box;

[0028] S2. During the polishing process of the movable seat, the two magnetic suction frames attract the movable seat. When the movable seat moves horizontally, the magnetic suction frames drive the sliding frame to slide horizontally, and the two second folding cloths are contracted to achieve synchronous shielding. When the movable seat moves longitudinally, the magnetic suction frames slide in the sliding grooves through the sliding blocks, and drive the return springs to bear force. When the movable seat returns to its position, the return springs help the sliding blocks to reset, and when the magnetic suction frames move, synchronous shielding is achieved through the contraction of the first folding cloths;

[0029] S3, the polishing seat moves downward, so that the extraction frame is squeezed by the mold, and the extraction frame is squeezed upward, so that multiple extraction heads are separated from the closed enclosure, and the extraction pump is started at the same time, and the extraction pump extracts the cutting fluid around the polishing seat synchronously through the extraction pipe, transfer box and extraction frame;

[0030] S4. When the cutting fluid passes through the transfer box, it is filtered by the filter plate. At the same time, when the extraction pump is running, the driving shaft drives the pushing frame to rotate, and the rotation of the pushing frame drives the cleaning frame to move. The cleaning frame drives the cleaning brush to clean the filter plate. At the same time, the cleaning frame moves in the push-pull groove and pulls the return spring to be stretched. When the pushing frame moves away from the cleaning frame, the return force of the return spring resets the cleaning frame, so that the cleaning frame reciprocates and the filter plate is fully cleaned by the cleaning brush.

[0031] The beneficial effects of the polishing device and method for a precision mold proposed by the present invention are:

[0032] In the present invention, by setting up the impurity extraction device, during polishing, the extraction pump is started at the same time, and the extraction pump synchronously extracts the cutting fluid around the polishing seat through the extraction pipe, the transfer box and the extraction frame, so as to avoid the problem of continuous accumulation of debris on the polishing seat during polishing, resulting in poor polishing effect. At the same time, when the cutting fluid passes through the transfer box, it is filtered by the filter plate to ensure the smooth flow of the filter plate.

[0033] Furthermore, in the present invention, by setting a synchronous opening and closing device, when the mold is installed in the mold installation box and polishing is performed, the two sliding covers slide close to each other, thereby closing the mold installation box, which can effectively shield the mold installation box and avoid the problem of cutting fluid splashing during polishing.

[0034] Furthermore, in the present invention, through the setting of the auxiliary shielding device, the magnetic frame is adsorbed on the movable seat by magnetic attraction, and when the movable seat moves, it slides horizontally through the sliding frame, moves vertically through the magnetic frame, and realizes synchronous shielding through the first folding cloth and the second folding cloth, which can ensure the normal polishing of the polishing seat and further shield the splashed cutting fluid, which can not only avoid the splashed cutting fluid from polluting the environment, but also ensure that the cutting fluid is effectively recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a precision mold polishing device provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the structure of the connection between a synchronous opening and closing device and an auxiliary shielding device of a precision mold polishing device provided by an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of the structure of the connection between a polishing seat and an extraction frame and other structures of a polishing device for a precision mold provided by an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of the structure of the connection between a filter plate and a cleaning brush strip and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0039] Figure 5 A schematic cross-sectional view of the connection between an extraction frame and a closed enclosure and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of the structure of the connection between a cleaning frame and a drive shaft and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of a partial cross-sectional structure of a connection between a connecting frame and a cleaning frame and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0042] Figure 8 A schematic diagram of the structure of the connection between a sliding cover and a sliding frame and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0043] Fig. 9 A schematic diagram of a partial structure of a connection between an opening and closing rotating rod and a driving column and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0044] Fig.10 A schematic diagram of a partial cross-sectional structure of a connection between a polishing body and an extrusion seat and other structures of a precision mold polishing device provided by an embodiment of the present invention;

[0045] Fig.11 A polishing device for a precision mold provided by an embodiment of the present invention Fig.10 The structural diagram of part A in the figure;

[0046] Fig.12 A partial cross-sectional structural schematic diagram of the connection between a sliding frame and a magnetic frame and other structures of a precision mold polishing device provided in an embodiment of the present invention.

[0047] In the figure: 1-polishing machine body; 2-mold installation box; 3-protective door; 4-moving seat; 5-polishing seat; 6-impurity extraction device; 601-extraction frame; 602-extraction head; 603-connecting frame; 604-extraction pump; 605-extraction pipe; 606-transfer box; 607-discharge pipe; 608-filter plate; 609-cleaning brush strip; 610-cleaning frame; 611-driving shaft; 612-pushing frame; 613-suspending rod; 614-enclosing enclosure; 615-push-pull groove; 616-return spring; 617-reset Spring; 7-synchronous opening and closing device; 701-sliding cover; 702-opening and closing rotating rod; 703-sliding groove; 704-driving shaft; 705-blocking frame; 706-installing rotating shaft; 707-driving column; 708-extrusion groove; 709-extrusion seat; 710-support spring; 711-driving rod; 712-driving groove; 8-auxiliary shielding device; 801-sliding frame; 802-magnetic frame; 803-first folding cloth; 804-second folding cloth; 805-sliding groove; 806-sliding block; 807-return spring. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] In addition, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0052] In addition, the terms "horizontal", "vertical", "vertical" and the like do not mean that the components are required to be absolutely vertical, but can be slightly tilted. For example, "vertical" only means that its direction is more vertical than "horizontal", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Please refer to the attached manual Figure 1-Figure 12 A polishing device for a precision mold provided by an embodiment of the present invention comprises a polishing body 1, a mold mounting box 2 is installed on the polishing body 1, a protective door 3 is movably installed on one side of the mold mounting box 2, a movable seat 4 is installed on the polishing body 1, and a polishing seat 5 for polishing is installed on the movable seat 4.

[0055] For further information, please refer to the attached manual. Figure 8-Figure 11A valve seal provided in an embodiment of the present invention also includes an impurity extraction device 6, which is installed on the polishing seat 5 and is used to extract cutting fluid around the polishing seat 5; the impurity extraction device 6 includes an extraction frame 601, which is installed on the polishing seat 5, and a plurality of extraction heads 602 are installed around the inner side of the extraction frame 601. An extraction pump 604 is installed on one side of the extraction frame 601, and an extraction pipe 605 and a discharge pipe 607 are installed on the extraction pump 604. The extraction pipe 605 extracts the cutting fluid and discharges it through the discharge pipe 607. It should be noted that, in the embodiment of the present invention, when polishing is performed, the polishing seat 5 moves downward, so that the extraction frame 601 is squeezed by the mold, and the extraction pump 604 is started at the same time. The extraction pump 604 synchronously extracts the cutting fluid around the polishing seat 5 through the extraction pipe 605, the transfer box 606 and the extraction frame 601, and discharges it aside through the discharge pipe 607, thereby avoiding the continuous accumulation of debris on the polishing seat 5 during polishing, resulting in poor polishing effect.

[0056] More specifically, in the embodiment of the present invention, a synchronous opening and closing device 7 is further included. The synchronous opening and closing device 7 is installed on the mold installation box 2. The synchronous opening and closing device 7 is used to close the mold installation box 2. The synchronous opening and closing device 7 includes two sliding covers 701. The two sliding covers 701 are both slidably installed on the top side of the mold installation box 2. The two sliding covers 701 are close to each other to close and block the mold installation box 2. Two opening and closing rotating rods 702 are rotatably installed on the polishing machine body 1. The two opening and closing rotating rods 702 are movably installed on the two sliding covers 701 respectively. The opening and closing rotating rods 702 are rotated to push the sliding covers 701 to move. It should be noted that in the embodiment of the present invention, when the moving seat 4 moves for polishing, the two opening and closing rotating rods 702 drive the two sliding covers 701 to approach synchronously to block the mold installation box 2, effectively avoiding the problem of cutting fluid splashing during polishing.

[0057] More specifically, in the embodiment of the present invention, an auxiliary shielding device 8 is installed on the synchronous opening and closing device 7, and the auxiliary shielding device 8 is used to perform follow-up shielding on the mold installation box 2; the auxiliary shielding device 8 includes two sliding frames 801, and the two sliding frames 801 are respectively slidably installed on the two sliding covers 701, and the two sliding frames 801 are slidably installed with magnetic suction frames 802, and the first folding cloth 803 is connected between the magnetic suction frame 802 and the sliding frame 801, and the second folding cloth 804 is connected between the sliding frame 801 and the sliding cover 701. It should be noted that in the embodiment of the present invention, the magnetic suction frame 802 is adsorbed on the moving seat 4 by magnetic attraction, and when the moving seat 4 moves, it slides horizontally through the sliding frame 801, moves vertically through the magnetic suction frame 802, and realizes synchronous shielding through the first folding cloth 803 and the second folding cloth 804.

[0058] Please continue to refer to the instruction manual Figure 8-Figure 11, further, in an embodiment of the present invention, a sealing member for a valve is provided, wherein the impurity extraction device 6 further comprises a connecting frame 603, the connecting frame 603 is mounted on the extraction frame 601, and the extraction pump 604 is mounted on the connecting frame 603;

[0059] In addition, two suspension rods 613 are movably installed in the extraction frame 601, and the two suspension rods 613 are installed on the bottom side of the polishing seat 5. It should be noted that in the embodiment of the present invention, when the extraction frame 601 is squeezed and moved upward, the extraction frame 601 moves vertically on the two suspension rods 613.

[0060] More specifically, in the embodiment of the present invention, a closed enclosure 614 is installed at the bottom end of the two suspension rods 613, and the closed enclosure 614 is used to synchronously close multiple extraction heads 602; two return springs 617 are installed on the top side of the extraction frame 601, and the top end of the return spring 617 is installed on the bottom side of the polishing seat 5. It should be noted that in the embodiment of the present invention, when the polishing seat 5 moves downward and the extraction frame 601 is squeezed by the mold, the extraction frame 601 is squeezed and moved upward, and the extraction frame 601 moves on the two suspension rods 613, and drives the return spring 617 to be stressed, so that the multiple extraction heads 602 are separated from the closed enclosure 614, and the extraction pump 604 is started at the same time, so that the extraction pump 604 can synchronously extract the cutting fluid around the polishing seat 5 through the extraction pipe 605, the transfer box 606 and the extraction frame 601.

[0061] Please continue to refer to the instruction manual Figure 8-Figure 11 , further specifically, in the embodiment of the present invention, a transfer box 606 is installed on one side of the extraction frame 601, the transfer box 606 is connected to the extraction pipe 605, and a filter plate 608 for filtering the cutting fluid is installed in the transfer box 606;

[0062] In addition, a cleaning brush strip 609 is provided in the transfer box 606, and the cleaning brush strip 609 is used to clean the filter plate 608. A cleaning frame 610 is installed on the filter plate 608, and a push-pull groove 615 is provided on the connecting frame 603. One end of the cleaning frame 610 extends into the push-pull groove 615, and a pull-back spring 616 is installed, and the other end of the pull-back spring 616 is installed on the inner wall of the push-pull groove 615. It should be noted that in the embodiment of the present invention, when the cutting fluid is extracted, the cleaning frame 610 moves in the push-pull groove 615, and the pull-back spring 616 cooperates to achieve reciprocating movement of the cleaning frame 610, so as to achieve effective cleaning of the filter plate 608.

[0063] More specifically, in the embodiment of the present invention, a driving shaft 611 is installed on the extraction pump 604, a pushing frame 612 is sleeved on the driving shaft 611, the cleaning frame 610 is in contact with the pushing frame 612, and the driving shaft 611 rotates to push the cleaning frame 610 to move through the pushing frame 612. It should be noted that, in the embodiment of the present invention, when the extraction pump 604 is in operation, the driving shaft 611 drives the pushing frame 612 to rotate, and the pushing frame 612 rotates to drive the cleaning frame 610 to move, and the cleaning frame 610 drives the cleaning brush 609 to clean the filter plate 608. At the same time, the cleaning frame 610 moves in the push-pull groove 615 and pulls the return spring 616 to be stretched. When the pushing frame 612 moves away from the cleaning frame 610, the return force of the return spring 616 resets the cleaning frame 610, realizes the reciprocating movement of the cleaning frame 610, and then makes the cleaning brush 609 move back and forth to clean the filter plate 608, thereby ensuring the smooth flow of the filter plate 608.

[0064] For further information, please refer to the attached manual. Figure 8-Figure 11 , a sealing member for a valve provided in an embodiment of the present invention, the synchronous opening and closing device 7 also includes two driving columns 707, and the two driving columns 707 are respectively installed on the two opening and closing rotating rods 702; in addition, an extrusion seat 709 is movably installed on one side of the polishing body 1, and the extrusion seat 709 is squeezed and retracted by the moving seat 4, and two driving rods 711 are installed on the bottom side of the extrusion seat 709, and driving grooves 712 are provided on the two driving columns 707, and the bottom ends of the two driving rods 711 extend into the two driving grooves 712 respectively. It should be noted that in the embodiment of the present invention, when the extrusion seat 709 moves, the two driving rods 711 are driven to move, and the two driving rods 711 move in the two driving grooves 712, driving the two driving columns 707 to rotate, so that the two driving columns 707 drive the two sliding covers 701 to open and close synchronously through the opening and closing rotating rod 702.

[0065] More specifically, in the embodiment of the present invention, two mounting shafts 706 are rotatably mounted on one side of the polishing machine body 1, and two driving columns 707 are respectively mounted on the two mounting shafts 706; sliding grooves 703 are respectively provided on one side of the two sliding covers 701, and driving shafts 704 are rotatably mounted on the two opening and closing rotating rods 702, and the two driving shafts 704 are respectively movably mounted in the two sliding grooves 703;

[0066] In addition, a blocking frame 705 is installed on one side of the two sliding covers 701, and the sliding covers 701 move to drive the blocking frame 705 to block the protective door 3. It should be noted that in the embodiment of the present invention, when the extrusion seat 709 moves to drive the two driving columns 707 to rotate, the driving columns 707 rotate on the polishing machine body 1 through the installation shaft 706, and at the same time, the driving column 707 rotates to drive the opening and closing rotating rod 702 to rotate, and then the two opening and closing rotating rods 702 drive the two sliding covers 701 to slide close through the two driving shafts 704, thereby closing the mold installation box 2, and at the same time, the driving shaft 704 slides in the sliding groove 703, and the sliding cover 701 moves to drive the blocking frame 705 to block the protective door 3, so as to avoid the problem that the protective door 3 is accidentally opened when the polishing machine body 1 is polishing.

[0067] More specifically, in the embodiment of the present invention, an extrusion groove 708 is provided on one side of the polishing body 1, and an extrusion seat 709 is movably installed in the extrusion groove 708; in addition, a support spring 710 is installed on the inner wall of the extrusion groove 708, and the other end of the support spring 710 is installed on the extrusion seat 709. It should be noted that in the embodiment of the present invention, when the moving seat 4 is separated from the extrusion seat 709, the rebound force of the support spring 710 helps the extrusion seat 709 to extend.

[0068] For further information, please refer to the attached manual. Figure 8 , Fig.10 and Fig.12 , a polishing device for a precision mold provided by an embodiment of the present invention, a sliding groove 805 is provided on one side of a sliding frame 801, a sliding block 806 is slidably installed in the sliding groove 805, and the sliding block 806 is installed on a magnetic suction frame 802;

[0069] In addition, a return spring 807 is installed on one side of the sliding block 806, and the other end of the return spring 807 is installed on the magnetic frame 802. It should be noted that in the embodiment of the present invention, when the magnetic frame 802 moves, the sliding block 806 slides in the sliding groove 805, and drives the return spring 807 to be stressed.

[0070] In summary, the working principle of a precision mold polishing device provided by an embodiment of the present invention, that is, the polishing method when the precision mold polishing device of the embodiment of the present invention is used for polishing is:

[0071] When the mold is installed in the mold installation box 2 and polishing is performed, the movable seat 4 moves down and forward, so that the movable seat 4 no longer compresses the extrusion seat 709. At this time, under the resilience of the support spring 710, the extrusion seat 709 is helped to reset and drive the two driving rods 711 to move. The two driving rods 711 move in the two driving grooves 712, thereby driving the two driving columns 707 to rotate. The driving columns 707 rotate on the polishing machine body 1 through the installation shaft 706. At the same time, the driving column 707 rotates to drive the opening and closing rotating rod 702 to rotate, and then the two opening and closing rotating rods 702 drive the two sliding covers 701 to slide close together through the two driving shafts 704, thereby closing the mold installation box 2.

[0072] Furthermore, when the two sliding covers 701 close the mold installation box 2, the two magnetic frames 802 wrap the moving seat 4. Therefore, when the moving seat 4 moves horizontally, the magnetic frame 802 drives the sliding frame 801 to slide horizontally, and the two second folding cloths 804 shrink to achieve synchronous shielding; when the moving seat 4 moves longitudinally, the magnetic frame 802 slides in the sliding groove 805 through the sliding block 806, and drives the return spring 807 to be stressed. When the moving seat 4 returns to its position, the return spring 807 helps the sliding block 806 to reset, and when the magnetic frame 802 moves, the first folding cloth 803 shrinks to achieve synchronous shielding;

[0073] Furthermore, when the polishing seat 5 moves downward, the extraction frame 601 is squeezed by the mold, and the extraction frame 601 is squeezed upward, so that the multiple extraction heads 602 are separated from the closed enclosure 614, and the extraction pump 604 is started at the same time. The extraction pump 604 extracts the cutting fluid around the polishing seat 5 synchronously through the extraction pipe 605, the transfer box 606 and the extraction frame 601, so as to avoid the problem of continuous accumulation of debris during polishing of the polishing seat 5, resulting in poor polishing effect; in addition, when the cutting fluid passes through the transfer box 606, it is filtered by the filter plate 608, and when the extraction pump 604 is running, by driving The shaft 611 drives the pushing frame 612 to rotate, and the pushing frame 612 rotates to drive the cleaning frame 610 to move, and the cleaning frame 610 drives the cleaning brush strip 609 to clean the filter plate 608. At the same time, the cleaning frame 610 moves in the push-pull groove 615 and pulls the return spring 616 to be stretched. When the pushing frame 612 moves away from the cleaning frame 610, the return force of the return spring 616 resets the cleaning frame 610 to realize the reciprocating movement of the cleaning frame 610, and then the cleaning brush strip 609 moves back and forth to clean the filter plate 608, thereby ensuring the smooth flow of the filter plate 608.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polishing device for precision molds, characterized in that: It comprises a polishing machine body, a mold installation box is installed on the polishing machine body, a protective door is movably installed on one side of the mold installation box, a moving seat is installed on the polishing machine body, and a polishing seat for polishing is installed on the moving seat; It also includes an impurity extraction device, which is installed on the polishing seat and is used to extract the cutting fluid around the polishing seat; the impurity extraction device includes an extraction frame, which is installed on the polishing seat, and a plurality of extraction heads are installed around the inner side of the extraction frame, and an extraction pump is installed on one side of the extraction frame, and an extraction pipe and a discharge pipe are installed on the extraction pump, and the extraction pipe extracts the cutting fluid and discharges it through the discharge pipe; It also includes a synchronous opening and closing device, which is installed on the mold installation box and is used to close the mold installation box; the synchronous opening and closing device includes two sliding covers, both of which are slidably installed on the top side of the mold installation box, and the two sliding covers are close to each other to close and block the mold installation box, and two opening and closing rotating rods are rotatably installed on the polishing machine body, and the two opening and closing rotating rods are movably installed on the two sliding covers respectively, and the opening and closing rotating rods are rotated to push the sliding covers to move; An auxiliary shielding device is installed on the synchronous opening and closing device, and the auxiliary shielding device is used to perform follow-up shielding on the mold installation box; the auxiliary shielding device includes two sliding frames, and the two sliding frames are respectively slidably installed on the two sliding covers, and magnetic frames are slidably installed on the two sliding frames, and a first folding cloth is connected between the magnetic frame and the sliding frame, and a second folding cloth is connected between the sliding frame and the sliding cover.

2. The polishing equipment for precision mold according to claim 1, characterized in that: The impurity extraction device further comprises a connecting frame, the connecting frame is mounted on the extraction frame, and the extraction pump is mounted on the connecting frame; Two suspension rods are movably installed in the extraction frame, and both of the suspension rods are installed on the bottom side of the polishing seat.

3. The polishing equipment for precision mold according to claim 2, characterized in that: The bottom ends of the two suspension rods are provided with closed panels, which are used to synchronously close the multiple extraction heads; Two return springs are installed on the top side of the extraction frame, and the top ends of the return springs are installed on the bottom side of the polishing seat.

4. The polishing equipment for precision mold according to claim 3, characterized in that: A transfer box is installed on one side of the extraction frame, the transfer box is connected to the extraction pipe, and a filter plate for filtering cutting fluid is installed in the transfer box; A cleaning brush is provided in the transfer box, and the cleaning brush is used to clean the filter plate. A cleaning frame is installed on the filter plate. A push-pull groove is provided on the connecting frame. One end of the cleaning frame extends into the push-pull groove and is installed with a return spring. The other end of the return spring is installed on the inner wall of the push-pull groove.

5. The polishing equipment for precision mold according to claim 4, characterized in that: The extraction pump is provided with a driving shaft, a pushing frame is sleeved on the driving shaft, the cleaning frame is in contact with the pushing frame, and the driving shaft rotates through the pushing frame to push the cleaning frame to move.

6. The polishing equipment for precision mold according to claim 1, characterized in that: The synchronous opening and closing device also includes two driving columns, and the two driving columns are respectively installed on the two opening and closing rotating rods; A pressing seat is movably installed on one side of the polishing body, and the pressing seat is squeezed and retracted by the movable seat. Two driving rods are installed on the bottom side of the pressing seat. Driving grooves are opened on the two driving columns, and the bottom ends of the two driving rods extend into the two driving grooves respectively.

7. The polishing equipment for precision mold according to claim 6, characterized in that: Two mounting shafts are rotatably mounted on one side of the polishing machine body, and the two driving columns are respectively mounted on the two mounting shafts; A sliding groove is provided on one side of the two sliding covers, and a driving shaft is rotatably installed on the two opening and closing rotating rods, and the two driving shafts are movably installed in the two sliding grooves respectively; A blocking frame is installed on one side of the two sliding covers, and the sliding covers move to drive the blocking frame to block the protective door.

8. The polishing equipment for precision molds according to claim 7, characterized in that: An extrusion groove is provided on one side of the polishing machine body, and the extrusion seat is movably installed in the extrusion groove; A support spring is installed on the inner wall of the extrusion groove, and the other end of the support spring is installed on the extrusion seat.

9. The polishing equipment for precision molds according to claim 1, characterized in that: A sliding groove is provided on one side of the sliding frame, a sliding block is slidably installed in the sliding groove, and the sliding block is installed on the magnetic suction frame; A return spring is installed on one side of the sliding block, and the other end of the return spring is installed on the magnetic suction frame.

10. A method for polishing a precision mold, which is performed according to the polishing device for a precision mold according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The polishing machine body is started, and the moving seat is driven to move downward and forward, so that the moving seat no longer compresses the extrusion seat, the extrusion seat is reset, and drives the two driving rods to move, the two driving rods drive the two driving columns to rotate, and the two driving columns drive the two sliding covers to slide close through the two opening and closing rotating rods, thereby closing the mold installation box; S2. During the polishing process of the movable seat, the two magnetic suction frames attract the movable seat. When the movable seat moves horizontally, the magnetic suction frames drive the sliding frame to slide horizontally, and the two second folding cloths are contracted to achieve synchronous shielding. When the movable seat moves longitudinally, the magnetic suction frames slide in the sliding grooves through the sliding blocks, and drive the return springs to bear force. When the movable seat returns to its position, the return springs help the sliding blocks to reset, and when the magnetic suction frames move, synchronous shielding is achieved through the contraction of the first folding cloths; S3, the polishing seat moves downward, so that the extraction frame is squeezed by the mold, and the extraction frame is squeezed upward, so that multiple extraction heads are separated from the closed enclosure, and the extraction pump is started at the same time, and the extraction pump extracts the cutting fluid around the polishing seat synchronously through the extraction pipe, transfer box and extraction frame; S4. When the cutting fluid passes through the transfer box, it is filtered by the filter plate. At the same time, when the extraction pump is running, the driving shaft drives the pushing frame to rotate, and the rotation of the pushing frame drives the cleaning frame to move. The cleaning frame drives the cleaning brush to clean the filter plate. At the same time, the cleaning frame moves in the push-pull groove and pulls the return spring to be stretched. When the pushing frame moves away from the cleaning frame, the return force of the return spring resets the cleaning frame, so that the cleaning frame reciprocates and the filter plate is fully cleaned by the cleaning brush.

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