A turbine casting cut polishing device

Abstract

The utility model discloses a turbine castings notch polishing device, including frame, workstation, polishing assembly and positioning assembly. Polishing assembly contains motor, drive wheel, driven wheel, abrasive band and abrasive band rest, and abrasive band rest supports the non-polishing surface of abrasive band. The positioning assembly is located in the front of polishing work area, and the limiting plate is equipped with the profiling structure that is adapted to turbine blade camber surface. The front and back adjustment of positioning assembly is realized through longitudinal slide rail and screw mechanism, and the left and right sliding is realized through horizontal slide rail, and the high-precision positioning and stable polishing of turbine blade camber surface are realized through the rigid support of abrasive band. The problem that the low efficiency and poor consistency of manual polishing are solved, and the surface machining quality of turbine casting is improved obviously.

Description

Technical Field

[0001] This utility model relates to the technical field of turbine casting processing equipment, specifically to a turbine casting cut grinding device. Background Technology

[0002] Turbine castings are typically mass-produced using investment casting. After demolding, multiple turbines are connected via a gating system to form a casting tree, requiring individual turbine castings to be separated by cutting. This process creates a cutting residue at the junction of the turbine blades and the gate. Traditional cutting tools often result in uneven or burr-like residues, and cutting errors can also cause the cut thickness to fall short of the design tolerance. Therefore, the cut surface needs to be ground to ensure turbine quality. Current grinding methods typically involve workers holding the turbine, bringing the cut surface into contact with a belt sander, relying on their experience, or repeatedly using height gauges to measure the height during grinding to ensure the ground turbine meets design requirements. This method suffers from low grinding efficiency, poor consistency, easy turbine damage, and significant safety hazards. Utility Model Content

[0003] The purpose of this invention is to overcome the defects in the existing technology and provide a device for grinding the cut edges of turbine castings.

[0004] To achieve the above objectives, the technical solution of this utility model is to design a grinding device for the cut of turbine castings, including a frame, a worktable, a grinding component, and a positioning component. The worktable is located on the frame. The grinding component includes a motor, a drive wheel, a driven wheel, a sanding belt, and a sanding belt support plate. The motor, drive wheel, driven wheel, and sanding belt support plate are all mounted on the frame. The motor is driven by the drive wheel. The sanding belt is fitted onto the drive wheel and the driven wheel. The sanding belt support plate is located on the back of the grinding working area and is in contact with the non-grinding surface of the sanding belt. The positioning component is located in front of the grinding working area.

[0005] Specifically, the positioning component includes a limiting plate mounted on the worktable. The limiting plate has positioning holes and a contouring structure on the side of the limiting plate away from the abrasive belt. This contouring structure conforms to the arc surface formed by all turbine blades on the turbine casting away from the turbine backplate during grinding. The positioning holes and the contouring structure ensure that the arc surface formed by the turbine blades away from the turbine backplate is tightly fitted with the limiting plate during grinding, thereby ensuring grinding accuracy.

[0006] Furthermore, the positioning assembly also includes longitudinal slide rails installed on the left and right sides of the worktable and lead screw bearings at both ends. A longitudinal linear bearing is slidably mounted on the longitudinal slide rail, and a support plate is mounted on the longitudinal linear bearing. A limiting plate is mounted on the support plate, and a lead screw is fitted onto the lead screw bearing. A lead screw nut is threaded onto the lead screw, and the lead screw nut is installed below the support plate. A locking bolt is also included, which passes through the support plate and the lead screw nut to hold the lead screw in place. By rotating the lead screw, the lead screw nut causes the limiting plate and the longitudinal linear bearing to move back and forth along the longitudinal slide rail, thereby adjusting the distance between the limiting plate and the sanding belt to limit the grinding amount and ensure grinding accuracy. The locking bolt locks the entire longitudinal movement assembly after the limiting plate is positioned, preventing displacement during grinding.

[0007] Furthermore, a transverse slide rail is installed on the support plate, and a transverse linear bearing is slidably mounted on the transverse slide rail. The limiting plate is mounted on the transverse linear bearing. The transverse linear bearing drives the limiting plate to slide along the transverse slide rail, which can prevent grinding in the same position of the sanding belt for a long time during grinding, thus avoiding low utilization efficiency of the sanding surface.

[0008] Furthermore, baffles are provided at both ends of the transverse slide rail. These baffles prevent the transverse linear bearing from detaching from the transverse slide rail when it slides along it.

[0009] Furthermore, the system also includes a grinding-ready turnover box and a finished product turnover box. These boxes are placed on either side of the workbench. Horizontal and vertical partitions are installed inside each box, forming a product compartment where the turbines are placed. The grinding-ready and finished product turnover boxes are convenient for operators to access and place. The internal partitions separate each turbine, preventing damage during transport and handling.

[0010] Furthermore, the grinding assembly also includes a safety cover, which is mounted on the frame and located outside the sanding belt, drive wheel, and driven wheel. The safety cover covers most of the sanding belt, leaving only a portion of the sanding belt exposed in the grinding work area, thereby reducing safety hazards during production.

[0011] The advantages and beneficial effects of this utility model are as follows: 1. The positioning holes and contour structure of the limiting plate precisely constrain the spatial position of the blades, preventing them from shifting during grinding and thus ensuring grinding accuracy.

[0012] 2. The longitudinal slide rail, longitudinal linear bearing, and lead screw system can precisely adjust the distance between the limit plate and the sanding belt, thereby ensuring the grinding accuracy. Furthermore, by adjusting the distance, it can adapt to turbines with different grinding thickness requirements.

[0013] 3. The transverse slide rail and transverse linear bearing can move the turbine laterally during grinding, thereby avoiding grinding the same position of the sanding belt for a long time, thus improving the utilization rate of the sanding surface, reducing the frequency of sanding belt replacement, and improving grinding efficiency.

[0014] 4. The turnover box facilitates the storage of turbines and the transfer between processes. Furthermore, the product compartment formed by the horizontal and vertical partitions of the turnover box can isolate individual turbines, thereby preventing turbine collision damage during transportation and reducing the product defect rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the grinding device of this utility model; Figure 2 This is a schematic diagram of the positioning component structure of this utility model; Figure 3 This is a schematic diagram of the positioning component of this utility model from another perspective; Figure 4 This is a schematic diagram of the limiting plate structure of this utility model; Figure 5 This is a schematic diagram of the structure of the turnover box of this utility model.

[0016] In the diagram: 1. Frame; 11. Workbench; 2. Grinding assembly; 21. Motor; 22. Drive wheel; 23. Driven wheel; 24. Sanding belt; 25. Sanding belt backing plate; 3. Positioning assembly; 31. Limiting plate; 321. Positioning hole; 322. Contouring structure; 331. Longitudinal slide rail; 332. Longitudinal linear bearing; 34. Lead screw bearing; 35. Support plate; 361. Lead screw; 362. Lead screw nut; 371. Transverse slide rail; 372. Transverse linear bearing; 38. Locking bolt; 4. Grinding work area; 5. Turbine; 51. Turbine blade; 52. Turbine back plate; 6. Baffle; 7. Turnover box for grinding; 71. Horizontal and longitudinal partitions; 72. Product warehouse; 8. Finished product turnover box; 9. Safety cover. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] according to Figures 1-3As shown, this utility model is a grinding device for the cut of turbine castings, including a frame 1, a worktable 11, a grinding component 2, and a positioning component 3. The worktable 11 is located on the frame 1. The grinding component 2 includes a motor 21, a drive wheel 22, a driven wheel 23, a sanding belt 24, and a sanding belt support plate 25. The motor 21, drive wheel 22, driven wheel 23, and sanding belt support plate 25 are all mounted on the frame 1. The motor 21 is driven by the drive wheel 22. The sanding belt 24 is fitted on the drive wheel 22 and the driven wheel 23. The sanding belt support plate 25 is located on the back of the grinding working area 4 and is in contact with the non-grinding surface of the sanding belt 24. The positioning component 3 is located in front of the grinding working area 4.

[0019] according to Figure 4 As shown, the positioning component 3 includes a limiting plate 31, which is mounted on the worktable 11. The limiting plate 31 has a positioning hole 321. A contouring structure 322 is provided on the side of the limiting plate 31 away from the sanding belt 24. The contouring structure 322 is adapted to the arc surface formed by all the turbine blades 51 on the turbine casting to be ground away from the turbine back plate 52.

[0020] The working principle is as follows: Start the grinding assembly 2. The grinding assembly 2 drives the drive wheel 22 to rotate and drive the driven wheel 23 and the sand belt 24. Then the worker holds the turbine 5 and inserts the end away from the turbine back plate 52 into the positioning hole 321, so that it contacts the sand belt 24 and begins grinding under the support of the sand belt back plate 25. When the arc surface formed by all the turbine blades 51 on the turbine casting away from the turbine back plate 52 fits with the contour structure 322, the grinding is completed. The worker removes the ground turbine 5 and puts in the next turbine 5 to continue grinding.

[0021] according to Figures 2-3 As shown, in any embodiment, the positioning component 3 further includes longitudinal slide rails 331 installed on the left and right sides of the worktable 11 and lead screw bearings 34 at the front and rear ends. A longitudinal linear bearing 332 is slidably mounted on the longitudinal slide rails 331, a support plate 35 is mounted on the longitudinal linear bearing 332, a limiting plate 31 is mounted on the support plate 35, a lead screw 361 is fitted onto the lead screw bearing 34, and a lead screw nut 362 is threaded onto the lead screw 361. The lead screw nut 362 is installed below the support plate 35 and includes a locking bolt 38 that passes through the support plate 35 and the lead screw nut 362, pressing against the lead screw 361. The difference between this embodiment and other embodiments is that by rotating the lead screw 361, the lead screw nut 362 causes the limiting plate 31 and the longitudinal linear bearing 332 to move back and forth along the longitudinal slide rails 331, thereby adjusting the distance between the limiting plate 31 and the sanding belt 24 to limit the grinding amount and ensure grinding accuracy. The locking bolt 38 can lock the entire longitudinal moving assembly after the position of the limiting plate 31 is determined, preventing displacement during grinding.

[0022] according to Figures 2-3 As shown, in any embodiment, a transverse slide rail 371 is mounted on the support plate 35, and a transverse linear bearing 372 is slidably mounted on the transverse slide rail 371. The limiting plate 31 is mounted on the transverse linear bearing 372. The difference between this embodiment and other embodiments is that the transverse linear bearing 372 drives the limiting plate 31 to slide along the transverse slide rail 371, which can avoid grinding at the same position of the sanding belt 24 for a long time during grinding, thereby avoiding low utilization efficiency of the sanding surface of the sanding belt 24.

[0023] according to Figures 2-3 As shown, in any embodiment, baffles 6 are provided at both ends of the transverse slide rail 371. The difference between this embodiment and other embodiments is that baffles 6 are provided at both ends of the transverse slide rail 371, which can prevent the transverse linear bearing 372 from disengaging from the transverse slide rail 371 when sliding along the transverse slide rail 371.

[0024] according to Figure 1 , 5 As shown, in any embodiment, it also includes a grinding-to-be-ground turnover box 7 and a finished product turnover box 8. The grinding-to-be-ground turnover box 7 and the finished product turnover box 8 are placed on both sides above the workbench 11. Horizontal and vertical partitions 71 are provided inside the grinding-to-be-ground turnover box 7 and the finished product turnover box 8, forming a product compartment 72 between the horizontal and vertical partitions 71. The turbine 5 is placed in the product compartment 72. The difference between this embodiment and other embodiments is that the grinding-to-be-ground turnover box 7 and the finished product turnover box 8 are convenient for operators to pick up and place. The horizontal and vertical partitions 71 inside facilitate the isolation of each turbine 5, preventing mutual collision and damage to the turbine 5 during transportation and handling.

[0025] according to Figure 1 As shown, in any embodiment, the grinding assembly 2 further includes a safety cover 9, which is mounted on the frame 1 and located outside the sanding belt 24, drive wheel 22, and driven wheel 23. The difference between this embodiment and other embodiments is that the safety cover 9 covers most of the sanding belt 24, leaving only a portion of the sanding belt 24 exposed in the grinding work area 4, thereby reducing safety hazards during production.

[0026] The bolts, nuts, screws, welding, and integral forming used to connect two or more parts, as described above, are all known to those skilled in the art and will not be repeated here. Similarly, the bearings required for components such as gears and drive rollers are also known to those skilled in the art and will not be repeated here. The frame, worktable, and other components described herein are adjusted according to the interrelationships between the components, with the primary aim of preventing interference between different components.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A grinding device for the cut edges of turbine castings, characterized in that, The machine includes a frame (1), a worktable (11), a grinding assembly (2), and a positioning assembly (3). The worktable (11) is located on the frame (1). The grinding assembly (2) includes a motor (21), a drive wheel (22), a driven wheel (23), a sanding belt (24), and a sanding belt backing plate (25). The motor (21), drive wheel (22), driven wheel (23), and sanding belt backing plate (25) are all mounted on the frame (1). The motor (21) is driven by the drive wheel (22). The sanding belt (24) is fitted on the drive wheel (22) and the driven wheel (23). The sanding belt backing plate (25) is located on the back of the grinding work area (4) and is in contact with the non-grinding surface of the sanding belt (24). The positioning assembly (3) is located in front of the grinding work area (4).

2. The turbine casting cut grinding device according to claim 1, characterized in that, The positioning component (3) includes a limiting plate (31), which is mounted on the worktable (11). The limiting plate (31) has a positioning hole (321). A contouring structure (322) is provided on the side of the limiting plate (31) away from the sand belt (24). The contouring structure (322) is adapted to the arc surface formed by all the turbine blades (51) on the turbine (5) casting to be ground away from the turbine back plate (52).

3. The turbine casting cut grinding device according to claim 2, characterized in that, The positioning component (3) also includes longitudinal slide rails (331) installed on the left and right sides of the worktable (11) and lead screw bearings (34) at the front and rear ends. A longitudinal linear bearing (332) is slidably installed on the longitudinal slide rail (331). A support plate (35) is installed on the longitudinal linear bearing (332). A limiting plate (31) is installed on the support plate (35). A lead screw (361) is fitted on the lead screw bearing (34). A lead screw nut (362) is threaded onto the lead screw (361). The lead screw nut (362) is installed below the support plate (35). The component also includes a locking bolt (38). The locking bolt (38) passes through the support plate (35) and the lead screw nut (362) and presses against the lead screw (361).

4. The turbine casting cut grinding device according to claim 3, characterized in that, A transverse slide rail (371) is installed on the support plate (35), and a transverse linear bearing (372) is slidably installed on the transverse slide rail (371). The limiting plate (31) is installed on the transverse linear bearing (372).

5. The turbine casting cut grinding device according to claim 4, characterized in that, The transverse slide rail (371) is provided with baffles (6) at both ends.

6. The turbine casting cut grinding device according to claim 1, characterized in that, It also includes a grinding-to-grind turnover box (7) and a finished product turnover box (8). The grinding-to-grind turnover box (7) and the finished product turnover box (8) are placed on both sides above the workbench (11). Horizontal and vertical partitions (71) are provided in the grinding-to-grind turnover box (7) and the finished product turnover box (8). A product compartment (72) is formed between the horizontal and vertical partitions (71). The turbine (5) is placed in the product compartment (72).

7. The turbine casting cut grinding device according to claim 1, characterized in that, The grinding assembly (2) also includes a safety cover (9), which is mounted on the frame (1) and located outside the sanding belt (24), drive wheel (22), and driven wheel (23).

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