Clamp for machining metal casting
By introducing the limit fixing mechanism of the bidirectional screw and arc-shaped clamp driven by servo motors into the fixtures for processing metal castings, as well as the dust cleaning function of the cleaning brush, the problems of unstable fixtures and dust impacts are solved, and the processing accuracy is improved degree and cleanliness.
Patent Information
- Application Number
- CN202421215965.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing metal casting fixtures can easily cause the position of the metal casting to shift during the fixing process, reducing the processing accuracy and working efficiency.
A clamp including a servo motor, a bidirectional screw, a curved clamp and a cleaning brush was designed. The servo motor drives the bidirectional screw to drive the arc clamp for thread connection, so as to achieve limit fixation of metal castings and cleaning brushes to surface dust. Cleanup.
It effectively prevents positional deviation caused by fixed and unstable metal castings during processing, improves processing accuracy and working efficiency, and improves surface cleanliness.
Smart Images
Figure CN222345379U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a clamp for processing metal castings. Background Art
[0002] Metal castings are made by pouring molten metal into a mold, and after cooling and solidification, metal parts with certain shapes and sizes can be obtained. Metal castings can be divided into steel castings, iron castings, zinc castings, etc.
[0003] In the current prior art, the fixture for processing metal castings is mainly composed of a clamping plate, a motor, a bracket, a clamping element and other components. Through the cooperation between these components, the metal castings can be quickly clamped and fixed.
[0004] The existing clamps for processing metal castings need to be used to fix the metal castings during processing to increase the stability of the metal castings during processing. The existing clamps often directly clamp and fix the metal castings placed on the workbench from both ends. However, directly clamping and fixing the metal castings from both ends can easily cause the position of the metal castings to shift when clamping and fixing them, resulting in a decrease in the accuracy of the metal castings during processing and reducing the overall work efficiency during processing of the metal castings. Therefore, a clamp for processing metal castings is proposed to address the above problems. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a clamp for processing metal castings.
[0006] The technical solution adopted by the utility model to solve its technical problems is: a fixture for processing metal castings described in the utility model comprises a fixed seat; a workbench is provided on the top of the fixed seat; a first inner groove is opened on the top of the workbench; a metal casting is provided on the bottom of the inner side of the first inner groove; a servo motor is fixedly connected to one side wall of the fixed seat; a slide groove is opened on the top of the fixed seat; a threaded hole groove is opened on the inner side wall of the slide groove; a two-way screw rod is rotatably connected to the inner side of the threaded hole groove; a pair of sliders are slidably connected to the inner side of the slide groove; the two-way screw rod and the slider are threadedly connected; a first arc clamping plate is fixedly connected to the top of the slider; a pair of threaded rods are threadedly connected to the surface of the workbench; multiple groups of telescopic rods are fixedly connected to the inner side wall of the first inner groove; a second arc clamping plate is fixedly connected to one end of the telescopic rod close to the metal casting; the threaded rod is rotatably connected to the second arc clamping plate at one end close to the metal casting.
[0007] Preferably, a mounting frame is fixedly connected to the top of the fixing seat; a pair of first electric push rods are fixedly connected to the inner top of the mounting frame; a fixing plate is fixedly connected to the bottom end of the first electric push rod; an output motor is fixedly connected to the top of the fixing plate; a first gear is fixedly connected to the output end of the output motor; a second gear is rotatably connected to the bottom of the fixing plate; the first gear and the second gear are meshed with each other; a first cleaning brush is fixedly connected to the bottom of the second gear; and second cleaning brushes are fixedly connected to both ends of the first cleaning brush.
[0008] Preferably, a pair of dust boxes are fixedly connected to the top of the fixed plate; the dust boxes are connected to the side walls away from each other with a first connecting pipe; a dust pump is provided at the other end of the first connecting pipe; a second connecting pipe is provided at the bottom of the dust pump; and a dust suction port is fixedly connected to the end of the second connecting pipe away from the dust pump.
[0009] Preferably, the fixing plates are fixedly connected to a pair of connecting plates on the side walls away from each other; the connecting plates are fixedly connected to a second electric push rod on the side wall close to the dust pump; and the second electric push rod is fixedly connected to an arc-shaped clamping block at one end close to the dust pump.
[0010] Preferably, the outer side wall of the sliding block is provided with a second inner groove; the inner side wall of the second inner groove is rotatably connected to a pair of fitting rotating posts; the outer side wall of the fitting rotating posts fits with the inner side wall of the sliding groove.
[0011] Preferably, an arc-shaped elastic plate is fixedly connected to the inner side wall of the first arc-shaped clamping plate.
[0012] Preferably, a third cleaning brush is fixedly connected to the bottom of the fixing plate; and an outer side wall of the third cleaning brush contacts the surfaces of the first gear and the second gear.
[0013] The utility model is beneficial in that:
[0014] 1. The clamp for processing metal castings described in the utility model can achieve the effect of first limiting and fixing the metal casting when the second arc-shaped clamping plate moves to fit the surface of the metal casting and the second arc-shaped clamping plate and the metal casting are in a squeezed state. At this time, the servo motor is started to drive the bidirectional screw rod to rotate inside the threaded hole groove. Because the bidirectional screw rod and the slider are threadedly connected, and the slider and the first arc-shaped clamping plate are connected to each other, that is, during the rotation of the bidirectional screw rod, the slider and the first arc-shaped clamping plate are driven to move toward the side close to the metal casting. When the inner side wall of the first arc-shaped clamping plate moves to fit the outer surface of the metal casting and the first arc-shaped clamping plate and the metal casting are in a squeezed state, the metal casting can be fixed from both ends, thereby reducing the situation that the position of the metal casting is easily offset when it is clamped and fixed due to the direct clamping and fixing work of the metal casting from both ends, resulting in a decrease in the accuracy during the metal casting processing, thereby improving the overall work efficiency during the metal casting processing.
[0015] 2. The utility model discloses a fixture for processing metal castings. Before the metal castings are processed, some dust and impurities are easily adhered to the surface. The first electric push rod is started to push the fixed plate, the output motor, the first gear, the second gear, the first cleaning brush and the second cleaning brush to move downward. When the first cleaning brush and the second cleaning brush move to contact with the outer surface of the metal casting, the output motor is started to drive the first gear to drive the second gear to rotate. Since the first cleaning brush is respectively connected to the second gear and the second cleaning brush, that is, during the rotation of the second gear, the first cleaning brush and the second cleaning brush are driven to rotate together. During the rotation of the first cleaning brush and the second cleaning brush, some dust and impurities adhered to the surface of the metal casting can be cleaned, thereby reducing the situation that the dust and impurities adhered to the surface of the metal casting before processing are large, which easily leaves marks on the surface of the metal casting during processing, resulting in reduced surface quality during processing of the metal casting; thereby improving the cleanliness of the surface of the metal casting. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a three-dimensional diagram of the fixing seat in the utility model;
[0018] Figure 2 It is a three-dimensional diagram of the arc-shaped elastic plate in the utility model;
[0019] Figure 3 It is a three-dimensional diagram of the metal casting in the utility model;
[0020] Figure 4 It is a three-dimensional diagram of the second cleaning brush in the utility model;
[0021] Figure 5 for Figure 4 Enlarged view of point A.
[0022] In the figure: 1. fixed seat; 11. workbench; 12. metal casting; 13. servo motor; 14. slide groove; 15. threaded hole groove; 16. bidirectional screw rod; 17. slider; 18. first arc clamping plate; 19. first inner groove; 110. threaded rod; 111. telescopic rod; 112. second arc clamping plate; 2. mounting frame; 21. first electric push rod; 22. fixed plate; 23. output motor; 24. first gear; 25. second gear; 26. first cleaning brush; 27. second cleaning brush; 3. dust box; 31. first connecting pipe; 32. dust suction pump; 33. second connecting pipe; 34. dust suction port; 4. connecting plate; 41. second electric push rod; 42. arc clamping block; 5. second inner groove; 51. fitting rotating column; 6. arc elastic plate; 7. third cleaning brush. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] like Figure 1 , Figure 2 and Figure 3As shown, a fixture for processing metal castings includes a fixed seat 1; a workbench 11 is provided on the top of the fixed seat 1; a first inner groove 19 is provided on the top of the workbench 11; a metal casting 12 is provided on the bottom of the inner side of the first inner groove 19; a servo motor 13 is fixedly connected to one side wall of the fixed seat 1; a slide groove 14 is provided on the top of the fixed seat 1; a threaded hole groove 15 is provided on the inner side wall of the slide groove 14; a bidirectional screw rod 16 is rotatably connected to the inner side of the threaded hole groove 15; a pair of sliders 17 are slidably connected to the inner side of the slide groove 14; the bidirectional screw rod 16 is threadedly connected to the slider 17; a first arc-shaped clamping plate 18 is fixedly connected to the top of the slider 17; a pair of threaded rods 110 are threadedly connected to the surface of the workbench 11; a plurality of telescopic rods 111 are fixedly connected to the inner side wall of the first inner groove 19; a second arc-shaped clamping plate 112 is fixedly connected to one end of the telescopic rod 111 close to the metal casting 12; the end of the threaded rod 110 close to the metal casting 12 is rotatably connected to the second arc-shaped clamping plate 112; when working: the threaded rod 110 is rotated to move the second arc-shaped clamping plate 112 to the side close to the metal casting 12 When the second arc clamping plate 112 moves to fit the surface of the metal casting 12, and the second arc clamping plate 112 and the metal casting 12 are in a squeezed state, the metal casting 12 can be limited and fixed first. At this time, the servo motor 13 is started to drive the bidirectional screw rod 16 to rotate inside the threaded hole groove 15. Because the bidirectional screw rod 16 and the slider 17 are threadedly connected, and the slider 17 and the first arc clamping plate 18 are connected to each other, that is, during the rotation of the bidirectional screw rod 16, the slider 17 and the first arc clamping plate 18 are driven to move closer to the metal casting. When the inner wall of the first arc-shaped clamping plate 18 moves to one side of the metal casting 12 and fits against the outer surface of the metal casting 12, and the first arc-shaped clamping plate 18 and the metal casting 12 are in an extruded state, the metal casting 12 can be fixed from both ends, thereby reducing the position deviation of the metal casting 12 when clamping and fixing the metal casting 12 directly from both ends, resulting in a decrease in the accuracy of the metal casting 12 during processing, thereby improving the overall work efficiency of the metal casting 12 during processing.
[0025] like Figure 1 , Figure 4 and Figure 5As shown, a mounting frame 2 is fixedly connected to the top of the fixing seat 1; a pair of first electric push rods 21 are fixedly connected to the top of the inner side of the mounting frame 2; a fixing plate 22 is fixedly connected to the bottom end of the first electric push rod 21; an output motor 23 is fixedly connected to the top of the fixing plate 22; a first gear 24 is fixedly connected to the output end of the output motor 23; a second gear 25 is rotatably connected to the bottom of the fixing plate 22; the first gear 24 and the second gear 25 are meshed with each other; a first cleaning brush 26 is fixedly connected to the bottom of the second gear 25; and second cleaning brushes 27 are fixedly connected to both ends of the first cleaning brush 26; during operation: before the metal casting 12 is processed, some dust and impurities are easily adhered to the surface, and at this time, the first electric push rod 21 is started to push the fixing plate 22, the output motor 23, the first gear 24, the second gear 25, the first cleaning brush 26 and the second cleaning brush 27 moves downward, and when the first cleaning brush 26 and the second cleaning brush 27 move to contact with the outer surface of the metal casting 12, the output motor 23 is started to drive the first gear 24 to drive the second gear 25 to rotate. Since the first cleaning brush 26 is connected with the second gear 25 and the second cleaning brush 27 respectively, that is, during the rotation of the second gear 25, the first cleaning brush 26 and the second cleaning brush 27 are driven to rotate together. During the rotation of the first cleaning brush 26 and the second cleaning brush 27, some dust and impurities adhered to the surface of the metal casting 12 can be cleaned, thereby reducing the situation that the dust and impurities adhered to the surface of the metal casting 12 before processing are large, which easily leaves marks on the surface of the metal casting 12 during processing, resulting in a decrease in the surface quality of the metal casting 12 during processing; thereby improving the cleanliness of the surface of the metal casting 12.
[0026] like Figure 1 and Figure 4 As shown, a pair of dust collecting boxes 3 are fixedly connected to the top of the fixed plate 22; the side walls of the dust collecting boxes 3 away from each other are connected to the first connecting pipe 31; the other end of the first connecting pipe 31 is provided with a dust suction pump 32; the bottom of the dust suction pump 32 is provided with a second connecting pipe 33; the second connecting pipe 33 is fixedly connected with a dust suction port 34 at one end away from the dust suction pump 32; when working: the dust suction pump 32 is started, so that the dust and impurities cleaned from the surface of the metal casting 12 can be directly sucked into the dust collecting box 3 through the dust suction port 34, the second connecting pipe 33 and the first connecting pipe 31, thereby reducing the situation where the first cleaning brush 26 and the second cleaning brush 27 are cleaning the dust and impurities adhered to the surface of the metal casting 12, causing the scraped and cleaned dust and impurities to fall into the first inner tank 19, thereby improving the overall cleanliness of the first inner tank 19.
[0027] like Figure 4As shown, the side walls of the fixed plates 22 that are away from each other are fixedly connected to a pair of connecting plates 4; the side wall of the connecting plate 4 close to the dust pump 32 is fixedly connected to a second electric push rod 41; the second electric push rod 41 is fixedly connected to an arc-shaped clamping block 42 at one end close to the dust pump 32; during operation: since the second electric push rod 41 and the arc-shaped clamping block 42 are connected to each other, the second electric push rod 41 is started to push the arc-shaped clamping block 42 to move toward the side close to the dust pump 32, when the inner side wall of the arc-shaped clamping block 42 moves to fit with the surface of the dust pump 32, and the arc-shaped clamping block 42 and the dust pump 32 are in a squeezed state, the dust pump 32 can be clamped and fixed, thereby improving the overall stability of the dust pump 32 when working for a long time.
[0028] like Figure 2 As shown, the outer wall of the slider 17 is provided with a second inner groove 5; the inner wall of the second inner groove 5 is rotatably connected with a pair of fitting rotation columns 51; the outer wall of the fitting rotation column 51 fits with the inner wall of the slide groove 14; during operation: when the slider 17 moves inside the slide groove 14, the fitting rotation column 51 follows the rotation, and the fitting rotation column 51 reduces the long-term sliding friction between the outer wall of the slider 17 and the inner wall of the slide groove 14, which may easily lead to more serious wear on the surface of the slider 17, thereby improving the working life of the slider 17.
[0029] like Figure 2 As shown, an arc-shaped elastic plate 6 is fixedly connected to the inner wall of the first arc-shaped clamping plate 18; when working: the arc-shaped elastic plate 6 is made of elastic material, and when the first arc-shaped clamping plate 18 clamps and fixes the metal casting 12, the arc-shaped elastic plate 6 first contacts the surface of the metal casting 12, and the arc-shaped elastic plate 6 and the metal casting 12 are in an extruded state. By setting the arc-shaped elastic plate 6, the first arc-shaped clamping plate 18 can reduce the long-term extrusion work on the surface of the metal casting 12 by the first arc-shaped clamping plate 18, which can easily cause the surface of the metal casting 12 to be damaged.
[0030] like Figure 5 As shown, a third cleaning brush 7 is fixedly connected to the bottom of the fixed plate 22; the outer wall of the third cleaning brush 7 is in contact with the surfaces of the first gear 24 and the second gear 25; during operation: during the mutual cooperation and rotation between the first gear 24 and the second gear 25, the third cleaning brush 7 can clean the dust and impurities adhered to the surface of the first gear 24 and the second gear 25 when they work for a long time, thereby improving the cleanliness of the surface of the first gear 24 and the second gear 25.
[0031] Working principle: rotating the threaded rod 110 makes the second arc-shaped clamping plate 112 move toward the side close to the metal casting 12. When the second arc-shaped clamping plate 112 moves to fit the surface of the metal casting 12, and the second arc-shaped clamping plate 112 and the metal casting 12 are in an extruded state, the metal casting 12 can be limited and fixed first. At this time, the servo motor 13 is started to drive the bidirectional screw rod 16 to rotate inside the threaded hole groove 15. Because the bidirectional screw rod 16 and the slider 17 are threadedly connected, and the slider 17 and the first arc-shaped clamping plate 18 are connected to each other, that is, during the rotation of the bidirectional screw rod 16, the slider 17 and the first arc-shaped clamping plate 18 are driven to move toward the side close to the metal casting 12. When the inner wall of the first arc clamping plate 18 moves to fit with the outer surface of the metal casting 12, and the first arc clamping plate 18 and the metal casting 12 are in a squeezed state, the metal casting 12 can be fixed from both ends, thereby reducing the position deviation of the metal casting 12 when clamping and fixing the metal casting 12 directly from both ends, resulting in reduced accuracy during the processing of the metal casting 12, thereby improving the overall work efficiency during the processing of the metal casting 12; before the metal casting 12 is processed, the surface is prone to adhere to some dust and impurities, at this time, the first electric push rod 21 is started to push the fixing plate 22, the output motor 23, and the first electric push rod 21 ... The first gear 24, the second gear 25, the first cleaning brush 26 and the second cleaning brush 27 move downward. When the first cleaning brush 26 and the second cleaning brush 27 move to contact with the outer surface of the metal casting 12, the output motor 23 is started to drive the first gear 24 to drive the second gear 25 to rotate. Since the first cleaning brush 26 is connected to the second gear 25 and the second cleaning brush 27, the first cleaning brush 26 and the second cleaning brush 27 are driven to rotate together during the rotation of the second gear 25. During the rotation of the first cleaning brush 26 and the second cleaning brush 27, some dust and impurities adhering to the surface of the metal casting 12 can be cleaned, thereby reducing the damage caused by the processing of the metal casting 12. There are many dust impurities adhered to the front surface, which may easily leave marks on the surface of the metal casting 12 during processing, resulting in a decrease in the surface quality of the metal casting 12 during processing; thereby improving the cleanliness of the surface of the metal casting 12; starting the dust suction pump 32, so that the dust impurities cleaned from the surface of the metal casting 12 can be directly sucked into the dust collecting box 3 through the dust suction port 34, the second connecting pipe 33 and the first connecting pipe 31, thereby reducing the first cleaning brush 26 and the second cleaning brush 27 from falling into the first inner tank 19 after scraping and cleaning the dust impurities adhered to the surface of the metal casting 12, thereby improving the overall cleanliness of the first inner tank 19;Because the second electric push rod 41 and the arc-shaped clamping block 42 are connected to each other, the second electric push rod 41 is started to push the arc-shaped clamping block 42 to move toward the side close to the dust suction pump 32. When the inner wall of the arc-shaped clamping block 42 moves to fit the surface of the dust suction pump 32, and the arc-shaped clamping block 42 and the dust suction pump 32 are in a squeezed state, the dust suction pump 32 can be clamped and fixed, thereby improving the overall stability of the dust suction pump 32 when working for a long time; during the movement of the slider 17 inside the slide groove 14, the fitting rotating column 51 rotates accordingly, and the fitting rotating column 51 reduces the sliding friction between the outer wall of the slider 17 and the inner wall of the slide groove 14 for a long time, which may easily cause serious wear on the surface of the slider 17, thereby improving the stability of the slider 17 Working life; the arc-shaped elastic plate 6 is made of elastic material. When the first arc-shaped clamping plate 18 clamps and fixes the metal casting 12, the arc-shaped elastic plate 6 first contacts the surface of the metal casting 12, and the arc-shaped elastic plate 6 and the metal casting 12 are in an extruded state. The arc-shaped elastic plate 6 can reduce the first arc-shaped clamping plate 18 from extruding the surface of the metal casting 12 for a long time, which may easily cause damage to the surface of the metal casting 12; during the mutual cooperation and rotation between the first gear 24 and the second gear 25, the third cleaning brush 7 can clean the dust and impurities adhered to the surface of the first gear 24 and the second gear 25 when they work for a long time, thereby improving the cleanliness of the surface of the first gear 24 and the second gear 25. ;
[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A fixture for processing metal castings, comprising a fixing seat (1); characterized in that: A workbench (11) is provided on the top of the fixed seat (1); a first inner groove (19) is provided on the top of the workbench (11); a metal casting (12) is provided on the inner bottom of the first inner groove (19); a servo motor (13) is fixedly connected to one side wall of the fixed seat (1); a slide groove (14) is provided on the top of the fixed seat (1); a threaded hole groove (15) is provided on the inner side wall of the slide groove (14); a bidirectional screw rod (16) is rotatably connected to the inner side of the threaded hole groove (15); a pair of sliders (17) are slidably connected to the inner side of the slide groove (14). The bidirectional screw rod (16) and the slider (17) are threadedly connected; a first arc-shaped clamping plate (18) is fixedly connected to the top of the slider (17); a pair of threaded rods (110) are threadedly connected to the surface of the workbench (11); a plurality of groups of telescopic rods (111) are fixedly connected to the inner side wall of the first inner groove (19); a second arc-shaped clamping plate (112) is fixedly connected to one end of the telescopic rod (111) close to the metal casting (12); and one end of the threaded rod (110) close to the metal casting (12) is rotatably connected to the second arc-shaped clamping plate (112).
2. A fixture for processing metal castings according to claim 1, characterized in that: The top of the fixing seat (1) is fixedly connected to a mounting frame (2); a pair of first electric push rods (21) are fixedly connected to the top of the inner side of the mounting frame (2); the bottom ends of the first electric push rods (21) are fixedly connected to a fixing plate (22); the top of the fixing plate (22) is fixedly connected to an output motor (23); the output end of the output motor (23) is fixedly connected to a first gear (24); the bottom of the fixing plate (22) is rotatably connected to a second gear (25); the first gear (24) and the second gear (25) are meshed with each other; the bottom of the second gear (25) is fixedly connected to a first cleaning brush (26); and the two ends of the first cleaning brush (26) are fixedly connected to second cleaning brushes (27).
3. A fixture for processing metal castings according to claim 2, characterized in that: A pair of dust collecting boxes (3) are fixedly connected to the top of the fixed plate (22); the side walls of the dust collecting boxes (3) which are away from each other are both connected to a first connecting pipe (31); a dust suction pump (32) is provided at the other end of the first connecting pipe (31); a second connecting pipe (33) is provided at the bottom of the dust suction pump (32); and a dust suction port (34) is fixedly connected to one end of the second connecting pipe (33) which is away from the dust suction pump (32).
4. A fixture for processing metal castings according to claim 3, characterized in that: A pair of connecting plates (4) are fixedly connected to the side walls of the fixed plates (22) that are away from each other; a second electric push rod (41) is fixedly connected to the side wall of the connecting plate (4) that is close to the dust suction pump (32); and an arc-shaped clamping block (42) is fixedly connected to one end of the second electric push rod (41) that is close to the dust suction pump (32).
5. A fixture for processing metal castings according to claim 1, characterized in that: The outer wall of the sliding block (17) is provided with a second inner groove (5); the inner wall of the second inner groove (5) is rotatably connected to a pair of fitting rotating posts (51); the outer wall of the fitting rotating posts (51) fits with the inner wall of the sliding groove (14).
6. A fixture for processing metal castings according to claim 1, characterized in that: An arc-shaped elastic plate (6) is fixedly connected to the inner side wall of the first arc-shaped clamping plate (18).
7. A fixture for processing metal castings according to claim 2, characterized in that: A third cleaning brush (7) is fixedly connected to the bottom of the fixed plate (22); an outer side wall of the third cleaning brush (7) is in contact with the surfaces of the first gear (24) and the second gear (25).