A surface grinding device for casting high-temperature steel molds

Abstract

The present invention relates to the technical field of grinding machines, and specifically to a surface grinding device for casting high-temperature resistant steel molds, which includes a main machine and a grinding roller. The grinding roller is threadedly connected to the driving shaft of the main machine. It also includes an extension bracket, which is arranged at the end of the main machine and extends along the axial direction of the driving shaft of the main machine; an installation unit, which is fixed at the end of the extension bracket and is used for installing and connecting the grinding roller. This surface grinding device for casting high-temperature resistant steel molds realizes the flexible conversion of the grinding roller under the condition of unchanged hand-held driving source through the ingeniously integrated extension bracket, precisely designed installation unit and highly efficient collaborative linkage unit, and can freely adjust the grinding posture in both the vertical and horizontal dimensions. This unprecedented design enables the grinding roller to precisely fit the surface of the mold, ensuring maximum contact area whether it is a smooth outer surface or a complex and variable inner surface depression, thereby significantly improving the uniformity and consistency of grinding.

Description

Technical Field

[0001] The invention relates to the technical field of grinders, in particular to a surface grinding device for high temperature resistant steel mould casting. Background Art

[0002] In modern industrial production, especially in areas involving high temperature resistant material processing, such as foundry industry, surface grinding plays a vital role in the manufacturing and processing of high temperature resistant steel molds. High-quality surface grinding is not only related to the precision and finish of the mold, but also directly affects the quality of subsequent products and overall production efficiency. However, in the face of slightly larger molds, especially those with complex shapes and various concave inner surfaces, traditional surface grinding methods seem to be unable to cope with it.

[0003] Traditionally, these large molds are mostly manually polished with handheld grinders, which has significant limitations: first, it cannot be flexibly adjusted according to the specific size and complex shape of the mold, resulting in frequent changes of position and angle during the polishing process, which is cumbersome and inefficient; second, for the inner surface of the mold, especially those depressions with different shapes and large extension angles, it is difficult for the handheld grinder to ensure full contact of the grinding roller, and often only local polishing can be achieved, which not only affects the uniformity and quality of the polishing, but also greatly reduces the polishing efficiency. For this reason, we propose a surface polishing device for high-temperature resistant steel mold casting. Summary of the invention

[0004] A technical problem to be solved by this application is to design a new device that can flexibly adapt to the size and shape of the mold and efficiently complete complex surface grinding, so as to improve the manufacturing quality and production efficiency of high-temperature resistant steel molds.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a surface grinding device for high temperature resistant steel mold casting, including a main machine and a grinding roller, the grinding roller is threadedly connected to the main machine drive shaft, and also includes:

[0006] An extension bracket is arranged at the end of the main engine and extends along the axial direction of the main engine driving shaft;

[0007] A mounting unit, fixed at the end of the extension bracket, used for mounting and connecting the grinding roller, and the grinding roller placed on the mounting unit is perpendicular to the main machine driving shaft;

[0008] The linkage unit is also arranged on the extension bracket, and when the extension bracket is extended, the linkage unit is connected to the main machine driving shaft and drives the grinding roller on the mounting unit to rotate at a high speed.

[0009] In some embodiments, the extension bracket includes a fixing ring fixed to the end of the main unit, self-locking telescopic rods are arranged on both sides of the fixing ring, the installation unit is arranged at the end of the self-locking telescopic rod, and the linkage unit is arranged between the two self-locking telescopic rods.

[0010] In some embodiments, the self-locking telescopic rod includes a threaded sleeve installed on a fixed collar, an extension screw is threadedly installed in the threaded sleeve, a fixed seat is rotatably installed at one end of the extension screw close to the main machine end, the mounting unit is arranged on the fixed seat, and the linkage unit is installed between the two fixed seats.

[0011] In some embodiments, a handle is sleeved on the extension screw.

[0012] In some embodiments, scale lines are provided on the extension screws.

[0013] In some embodiments, the mounting unit includes a first fixing rod and a second fixing rod respectively mounted on two fixing seats, a self-locking outward expansion rod is arranged on the second fixing rod, and a docking shaft is rotatably arranged at the end of the self-locking outward expansion rod and the end of the first fixing rod;

[0014] The docking shaft is a polygonal cylinder, and a polygonal buckle groove is provided at the end of the grinding roller, and a threaded hole is provided on the inner wall of the polygonal buckle groove. The grinding roller is connected to the main machine drive shaft via the threaded hole and is connected to the docking shaft via the polygonal buckle groove, and the linkage unit is connected to the docking shaft.

[0015] In some embodiments, the self-locking outward expansion rod includes a guide rod mounted on the second fixed rod, a movable rod is slidably arranged on the guide rod, and the docking shaft rotates at the end of the movable rod;

[0016] A driving screw is also rotated on the second fixed rod, and the thread of the driving screw penetrates the movable rod.

[0017] In some embodiments, the linkage unit includes a carrier frame installed between two fixed seats, a driving sleeve rod is passed through the middle position of the carrier frame, the driving sleeve rod is rotatably connected to the carrier frame, and a multi-sided through slot is provided at the center position of the driving sleeve rod, the main engine driving shaft passes through the multi-sided through slot, and a multi-sided buckle rod is sleeved on the main engine driving shaft;

[0018] A transmission component is arranged on the first fixing rod, and the transmission component connects the driving sleeve rod and the docking shaft on the first fixing rod.

[0019] In some embodiments, the transmission component includes a transmission shaft penetrating through the first fixed rod, the transmission shaft is rotatably connected to the first fixed rod, and pulleys are fixed on the connecting shafts on the transmission shaft and the first fixed rod, and the two pulleys are driven by belts;

[0020] A first bevel gear is fixed on the driving sleeve rod, and a second bevel gear meshing with the first bevel gear is fixed on the end of the transmission shaft.

[0021] In some embodiments, a reinforcement seat is provided on the support frame, and the transmission shaft passes through the reinforcement seat and is rotatably connected to the reinforcement seat.

[0022] The present invention has at least the following beneficial effects:

[0023] This device, through the clever integration of extension brackets, precision-designed mounting units and highly efficient coordinated linkage units, realizes the flexible conversion of the grinding roller without changing the handheld drive source, and can freely adjust the grinding posture in both vertical and horizontal dimensions. This unprecedented design enables the grinding roller to accurately fit the mold surface, whether it is a smooth outer surface or a complex and varied inner surface depression, to ensure maximum contact area, thereby significantly improving the uniformity and consistency of grinding;

[0024] In addition, the device has greatly improved the grinding efficiency and reduced the time wasted due to frequent changes in position and angle in traditional hand-held grinding methods. The operator only needs to simply adjust the device to achieve comprehensive and efficient grinding of the mold, which not only reduces labor intensity but also improves work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the initial polishing state of Example 1 of the present invention;

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the middle grinding roller and the main machine being separated;

[0027] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the grinding roller of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the present invention after omitting the grinding roller in the initial grinding state;

[0029] Figure 5 This is a schematic diagram of the structure of the second grinding body of the present invention after omitting the grinding roller;

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle A area;

[0031] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0032] Figure 8This is a schematic diagram of the overall structure of the second polishing state of Example 1 of the present invention;

[0033] Fig. 9 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0034] Fig.10 This is a schematic diagram of the structure after the grinding roller switches the grinding mode in Example 2 of the present invention.

[0035] In the figure: 1. main machine; 2. grinding roller; 3. extension bracket; 31. fixing collar; 32. self-locking telescopic rod; 33. threaded sleeve; 34. extension screw; 35. fixing seat; 36. grip; 37. scale line; 4. mounting unit; 41. first fixing rod; 42. second fixing rod; 43. self-locking outward expansion rod; 44. docking shaft; 45. polygonal buckle groove; 46. threaded hole; 47. guide rod; 48. movable rod; 49. driving screw; 5. linkage unit; 51. bearing frame; 52. driving sleeve rod; 53. polygonal through groove; 54. polygonal buckle rod; 55. transmission component; 56. transmission shaft; 57. pulley; 58. belt; 59. first bevel gear; 510. second bevel gear; 511. reinforcement seat; 6. universal joint coupling; 61. support bracket; 62. telescopic connecting rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0037] Embodiment 1: The present invention provides a technical solution:

[0038] As attached Figure 1-2 The surface grinding device for high temperature resistant steel mold casting includes a main machine 1 and a grinding roller 2, the grinding roller 2 is threadedly connected to the driving shaft of the main machine 1, wherein the main machine 1 is a conventional handheld grinding machine structure, the grinding roller 2 is used for matching grinding, and also includes an extension bracket 3, a mounting unit 4 and a linkage unit 5;

[0039] The extension bracket 3 is arranged at the end of the main machine 1 and extends axially along the driving shaft of the main machine 1. The mounting unit 4 is fixed at the end of the extension bracket 3 for installing and connecting the grinding roller 2. It should be noted that the grinding roller 2 is normally arranged on the driving shaft of the main machine 1 in the initial form. When the grinding roller 2 is arranged on the mounting unit 4, it is in the second grinding form. At this time, the grinding roller 2 placed on the mounting unit 4 is perpendicular to the driving shaft of the main machine 1, and the linkage unit 5 is also arranged on the extension bracket 3. When the extension bracket 3 is extended, the linkage unit 5 is connected to the driving shaft of the main machine 1 and drives the grinding roller 2 on the mounting unit 4 to rotate at high speed. Through the above design, the grinding roller 2 can be switched in form for grinding, so that it is suitable for grinding recesses of different shapes and extension angles, ensuring the grinding quality and grinding efficiency.

[0040] As attached Figure 3-5 As shown, the extension bracket 3 includes a fixing ring 31 fixed to the end of the main machine 1, and self-locking telescopic rods 32 are arranged on both sides of the fixing ring 31. The self-locking telescopic rod 32 includes a threaded sleeve 33 installed on the fixing ring 31, and an extension screw 34 is threadedly installed in the threaded sleeve 33. A fixing seat 35 is rotatably installed at one end of the extension screw 34 close to the end of the main machine 1. The mounting unit 4 is arranged on the fixing seat 35, and the linkage unit 5 is installed between the two fixing seats 35. In this way, when the grinding form of the grinding roller 2 is actually switched, it is only necessary to set two extension screws 34 to move and extend in the threaded sleeve 33 to move the mounting unit 4 and the linkage unit 5 out for use.

[0041] Further, as attached Figure 6 As shown, a handle 36 is provided on the extension screw 34 to facilitate the rotation and extension of the extension screw 34, and scale lines 37 are provided on the extension screw 34 to provide an intuitive length reference to facilitate determining that the moving distances of the extension screws 34 on both sides are the same, thereby facilitating stable transmission.

[0042] like Figure 6 As shown, the mounting unit 4 includes a first fixing rod 41 and a second fixing rod 42 respectively mounted on two fixing seats 35, a self-locking outward expansion rod 43 is arranged on the second fixing rod 42, the self-locking outward expansion rod 43 includes a guide rod 47 mounted on the second fixing rod 42, a movable rod 48 is slidably arranged on the guide rod 47, and a docking shaft 44 is rotatably mounted on the end of the movable rod 48;

[0043] A driving screw 49 is also rotated on the second fixed rod 42, and the driving screw 49 threadably penetrates the movable rod 48, and a docking shaft 44 is rotated at the end of the first fixed rod 41. The two docking shafts 44 are used to fix the grinding roller 2 perpendicular to the driving shaft of the main machine 1. Before switching the grinding form of the grinding roller 2, after the extension bracket 3 is extended, the driving screw 49 needs to be set to drive the movable rod 48 to expand outward, and then the grinding roller 2 is placed between the two docking shafts 44;

[0044] It should be noted that the docking shaft 44 is a polygonal cylinder, and a polygonal buckle groove 45 is provided at the end of the grinding roller 2. A threaded hole 46 is provided on the inner wall of the polygonal buckle groove 45. The grinding roller 2 is connected to the driving shaft of the main machine 1 via the threaded hole 46. After the grinding roller 2 is located between the two docking shafts 44, a driving screw 49 is provided to drive the movable rod 48 to reset, so that the two docking shafts 44 can be used to clamp and fix the grinding roller 2, and the linkage unit 5 is connected to the docking shaft 44.

[0045] As attached Figure 7 As shown, the linkage unit 5 includes a carrier frame 51 installed between two fixing seats 35, a driving sleeve rod 52 is passed through the middle position of the carrier frame 51, the driving sleeve rod 52 is rotatably connected to the carrier frame 51, and a multi-sided through slot 53 is provided at the center position of the driving sleeve rod 52, the driving shaft of the main machine 1 passes through the multi-sided through slot 53, and a multi-sided buckle rod 54 is sleeved on the driving shaft of the main machine 1;

[0046] A transmission component 55 is provided on the first fixed rod 41. The transmission component 55 includes a transmission shaft 56 that penetrates the first fixed rod 41. The transmission shaft 56 is rotatably connected to the first fixed rod 41. A pulley 57 is fixed on the transmission shaft 56 and the docking shaft 44 on the first fixed rod 41. The two pulleys 57 are driven by a belt 58.

[0047] A first bevel gear 59 is fixed on the driving sleeve rod 52 , and a second bevel gear 510 meshing with the first bevel gear 59 is fixed on the end of the transmission shaft 56 .

[0048] Regarding the above-mentioned features, in the process of switching the shape of the grinding roller 2, especially when the extension bracket 3 is extended, the carrier frame 51 will be driven to move synchronously. At this time, the polygonal through groove 53 of the driving sleeve rod 52 will be buckled into the polygonal buckle rod 54 set on the driving shaft of the main machine 1. In this way, when the driving shaft of the main machine 1 rotates subsequently, the driving sleeve rod 52 can be driven to rotate together. After the bevel gear is reversed and the belt 58 and the pulley 57 are used for transmission, the docking shaft 44 is driven to continue to rotate at a high speed to ensure the stable drive and grinding use of the grinding roller 2 after the shape is switched.

[0049] As attached Figure 7-8 As shown, a reinforcement seat 511 is provided on the carrier frame 51 , and the transmission shaft 56 passes through the reinforcement seat 511 and is rotatably connected to the reinforcement seat 511 to enhance the stability of the transmission shaft 56 and ensure stable meshing transmission of the two bevel gears.

[0050] Example 2: Please refer to Figure 9-10As shown, different from Example 1, the present invention provides another technical solution: a surface grinding device for high-temperature resistant steel mold casting, including a main body 1 and a grinding roller 2, and also including an extension bracket 3, the extension bracket 3 includes a fixed ring 31 fixed to the end of the main body 1, and self-locking telescopic rods 32 are arranged on both sides of the fixed ring 31. The self-locking telescopic rod 32 includes a threaded sleeve 33 installed on the fixed ring 31, and an extension screw 34 is threadedly installed in the threaded sleeve 33. A fixed seat 35 is rotatably installed at one end of the extension screw 34 close to the end of the main body 1. In this way, when the grinding form of the grinding roller 2 is actually switched, it is only necessary to set two extension screws 34 to move and extend in the threaded sleeve 33.

[0051] In addition, a universal joint coupling 6 is provided at the end of the driving shaft of the main machine 1, and a supporting bracket 61 is rotatably installed on the grinding roller 2. Telescopic connecting rods 62 are fixed on both sides of the supporting bracket 61, and the telescopic connecting rods 62 are rotatably connected to the fixed seat 35. Different from Example 1, in this embodiment, the maximum shape switching angle of the grinding roller 2 is not as good as that in Example 1, that is, this embodiment cannot provide sufficient contact area under a specific extension angle and shape of the depression. The shape switching of this embodiment is more flexible, that is, by respectively arranging the displacement of the extension screws 34 on both sides, the inclination angle of the grinding roller 2 can be switched and adjusted when the telescopic connecting rod 62 and the fixed seat 35 are rotatably connected to the telescopic connecting rod 62, and it is stably driven by the universal joint coupling 6, so that it is more flexibly applicable to the inner surface depressions of the mold with different extension angles and shapes.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface grinding device for high temperature resistant steel mold casting, comprising a main machine (1) and a grinding roller (2), wherein the grinding roller (2) is threadedly connected to a drive shaft of the main machine (1), and characterized in that: Also included are: An extension bracket (3) is arranged at the end of the main machine (1) and extends along the axial direction of the driving shaft of the main machine (1); A mounting unit (4) fixed to the end of the extension bracket (3) and used for mounting and connecting the grinding roller (2), wherein the grinding roller (2) placed on the mounting unit (4) is perpendicular to the driving shaft of the main machine (1); A linkage unit (5) is also arranged on the extension bracket (3), and when the extension bracket (3) is extended, the linkage unit (5) is connected to the drive shaft of the main machine (1) and drives the grinding roller (2) on the mounting unit (4) to rotate at high speed; The extension bracket (3) comprises a fixing collar (31) fixed to the end of the main body (1), self-locking telescopic rods (32) are arranged on both sides of the fixing collar (31), the mounting unit (4) is arranged at the end of the self-locking telescopic rod (32), and the linkage unit (5) is arranged between the two self-locking telescopic rods (32).

2. The surface grinding device for high temperature resistant steel mold casting according to claim 1 is characterized in that: The self-locking telescopic rod (32) comprises a threaded sleeve (33) mounted on a fixed collar (31), an extension screw (34) being threadedly mounted in the threaded sleeve (33), a fixing seat (35) being rotatably mounted on one end of the extension screw (34) close to the end of the main machine (1), the mounting unit (4) being arranged on the fixing seat (35), and the linkage unit (5) being mounted between the two fixing seats (35).

3. The surface grinding device for high temperature resistant steel mold casting according to claim 2 is characterized in that: A handle (36) is sleeved on the extension screw rod (34).

4. The surface grinding device for high temperature resistant steel mold casting according to claim 2 is characterized in that: The extension screw rods (34) are each provided with scale marks (37).

5. The surface grinding device for high temperature resistant steel mold casting according to claim 4 is characterized in that: The mounting unit (4) comprises a first fixing rod (41) and a second fixing rod (42) respectively mounted on two fixing seats (35); a self-locking outward expansion rod (43) is arranged on the second fixing rod (42); and a docking shaft (44) is rotatably provided at the end of the self-locking outward expansion rod (43) and the end of the first fixing rod (41); The docking shaft (44) is a polygonal column, and a polygonal buckle groove (45) is provided at the end of the grinding roller (2), and a threaded hole (46) is provided on the inner wall of the polygonal buckle groove (45). The grinding roller (2) is connected to the driving shaft of the main machine (1) via the threaded hole (46) and is connected to the docking shaft (44) via the polygonal buckle groove (45). The linkage unit (5) is connected to the docking shaft (44).

6. The surface grinding device for high temperature resistant steel mold casting according to claim 5, characterized in that: The self-locking outward expansion rod (43) comprises a guide rod (47) mounted on the second fixed rod (42), a movable rod (48) is slidably arranged on the guide rod (47), and the docking shaft (44) rotates on the end of the movable rod (48); A driving screw rod (49) is also rotatably mounted on the second fixed rod (42), and a thread of the driving screw rod (49) penetrates through the movable rod (48).

7. The surface grinding device for high temperature resistant steel mold casting according to claim 6, characterized in that: The linkage unit (5) comprises a carrier frame (51) installed between two fixed seats (35), a driving sleeve rod (52) passes through the middle position of the carrier frame (51), the driving sleeve rod (52) is rotatably connected to the carrier frame (51), and a multi-sided through slot (53) is provided at the center position of the driving sleeve rod (52), the driving shaft of the main machine (1) passes through the multi-sided through slot (53), and a multi-sided buckle rod (54) is sleeved on the driving shaft of the main machine (1); A transmission component (55) is provided on the first fixed rod (41), and the transmission component (55) connects the driving sleeve rod (52) and the docking shaft (44) on the first fixed rod (41).

8. The surface grinding device for high temperature resistant steel mold casting according to claim 7, characterized in that: The transmission component (55) comprises a transmission shaft (56) penetrating the first fixed rod (41), the transmission shaft (56) being rotatably connected to the first fixed rod (41), and pulleys (57) being fixed on the transmission shaft (56) and the docking shaft (44) on the first fixed rod (41), and the two pulleys (57) are driven by belts (58); A first bevel gear (59) is fixed on the driving sleeve rod (52), and a second bevel gear (510) meshing with the first bevel gear (59) is fixed on the end of the transmission shaft (56).

9. The surface grinding device for high temperature resistant steel mold casting according to claim 8, characterized in that: A reinforcement seat (511) is provided on the support frame (51), and the transmission shaft (56) passes through the reinforcement seat (511) and is rotatably connected to the reinforcement seat (511).

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