Polishing device for mandrel machining

Abstract

The utility model discloses a polishing device for mandrel processing, which comprises a base, two groups of hydraulic cylinders are fixed at the top of the base, a fixing frame is fixed on piston rods of the hydraulic cylinders, a connecting frame is movably arranged at the bottom of the fixing frame, and a mounting shell is fixed at the bottom of the connecting frame. An inner cavity of the connecting frame is rotationally connected with three sets of supporting rollers distributed in an equilateral triangle shape through bearings, the supporting rollers are sleeved with a conveying belt, and the outer side of the conveying belt is a polishing face. The mandrels with different sizes, which are mounted on the clamping seat, are sequentially contacted with the conveying belt, after all the mandrels are contacted with the conveying belt, the conveying belt can be tensioned, then the conveying belt is contacted with the three groups of supporting rollers, and the driving motor is matched with the supporting rollers to drive the conveying belt and is matched with the rotation of the mandrels to drive the conveying belt to rotate. And the mandrels with different sizes can be quickly polished.

Description

TECHNICAL FIELD

[0001] The utility model relates to polishing technical field, concretely is a kind of polishing device for mandrel processing. BACKGROUND

[0002] Polishing refers to the use of mechanical, chemical or electrochemical effects, to reduce the surface roughness of workpiece, to obtain bright, flat surface processing method. It is the use of polishing tool and abrasive particles or other polishing medium to the surface of workpiece.

[0003] In the prior art, the Chinese invention content with publication number: CN114833707A discloses a polishing device for shaft body processing, relates to transmission component processing field, including polishing box body, the side wall of polishing box body is provided with control device;It also includes rotating mechanism, linkage mechanism and polishing mechanism. Electric telescopic rod drives connecting shaft rotation, through the meshing between driving bevel gear and driven bevel gear, make first linkage shaft rotate, again through the pulley transmission connection between driving pulley and driven pulley, make second linkage shaft rotate, make the convex plate rotate, through the cooperation between convex plate and transmission plate make rectangle set in the groove shake, so that polishing plate also moves left and right on the surface of shaft body, can realize the axial polishing of polishing plate to shaft body simultaneously, compared with traditional polishing device, the polishing efficiency and polishing effect of the device are greatly improved. Through the linkage of linkage mechanism between rotating assembly and polishing assembly, the moving frequency of polishing plate is automatically adjusted according to the rotating speed of shaft body, so that the shaft body reaches the best polishing effect.

[0004] In the above technical scheme, the U-shaped supporting block is driven to move up by hydraulic telescopic shaft, so that the shaft body clamped by the clamp is moved up and contacted with the polishing plate. The device can only polish a group of shaft bodies, which leads to low polishing efficiency. If multiple groups of shaft bodies need to be polished simultaneously, the shaft bodies must be of the same size, otherwise different sizes of shaft bodies cannot be contacted with the polishing plate simultaneously, thereby affecting the polishing efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of polishing device for mandrel processing, through drive assembly, the mandrel clamped by clamping seat can be rotated, then make installation shell move down, make conveying belt contact with mandrel, due to the flexibility of conveying belt, different sizes of mandrel can be supported to be attached to conveying belt simultaneously, then make conveying belt tension, drive conveying belt can polish different sizes of mandrel simultaneously, which helps to improve the polishing efficiency of mandrel, to solve the problems raised in the above background technique.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A kind of polishing device for mandrel processing, including base, the top of the base is fixed with two groups of hydraulic cylinders, the piston rod of the hydraulic cylinder is fixed with fixed frame, the bottom of the fixed frame is movably provided with connecting frame, the bottom of the connecting frame is fixed with installation shell, the inner chamber of the connecting frame is rotatably connected with three groups of support rollers in equilateral triangle shape distribution by bearing, the outside of the support roller is equipped with conveying belt, the outside of the conveying belt is polishing surface, the outside of the installation shell is fixed with driving motor, the output shaft of the driving motor is penetrated to the inside of installation shell and is connected with a group of support rollers key, the inner chamber of the fixed frame is provided with the translation component that moves connecting frame, the top of the base is fixed with first support plate and second support plate, the first support plate and second support plate are provided with clamping seat between, the clamping seat between clamps the mandrel to be processed, the outside of the first support plate and second support plate is provided with the drive assembly that drives clamping seat to rotate.

[0007] Preferably, the translation component includes a threaded rod rotatably in the inner chamber of the fixed frame, the outer side of the threaded rod is threadedly connected with a threaded sleeve, the threaded sleeve is fixedly embedded on the connecting frame, the outer side of the fixed frame is fixed with a servo motor, the output shaft of the servo motor is penetrated to the inner chamber of the fixed frame and is connected with one end of the threaded rod key.

[0008] Preferably, the drive assembly includes a movable cylinder rotatably connected on the first support plate, one end of a group of clamping seats away from the mandrel is penetrated to the inner chamber of the movable cylinder, the outer side of the movable cylinder is fixed with an electric push rod, the piston rod of the electric push rod is penetrated to the inner chamber of the movable cylinder and is fixedly connected with the clamping seat, another group of the clamping seat is rotatably connected on the second support plate through bearing, the side of the second support plate away from the mandrel is fixed with a fixed box, the end of the fixed box is fixed with a rotary motor, the output shaft of the rotary motor is penetrated to the inner chamber of the fixed box and is fixed with a rotary shaft rotatably in the inner side of the fixed box, the outer side of the rotary shaft is fixed with a drive bevel gear, one end of the clamping seat is penetrated to the inner chamber of the fixed box and is fixed with a driven bevel gear meshing with the drive bevel gear.

[0009] Preferably, the bottom of the fixed frame is embedded with a slide sleeve around, and the inner chamber of the slide sleeve is slidably connected with a slide rod, and the bottom of the slide rod is fixed on the top of the base.

[0010] Preferably, the inner cavity of the mounting shell is rotatably connected with a plurality of limiting rollers through bearings, and a plurality of grooves are arranged in the bottom of the mounting shell and located between adjacent limiting rollers.

[0011] Preferably, a sliding groove is arranged in the bottom of the fixing frame, and a sliding block is fixed to the top of the connecting frame and penetrates into the inner cavity of the sliding groove.

[0012] Preferably, three groups of limiting blocks are fixed to the inner side of the mounting shell and attached to the outer side of the conveying belt.

[0013] Preferably, a supporting spring is arranged on the outer side of the sliding rod and located between the base and the fixing frame.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1、 the utility model discloses a drive motor drives a group of supporting rollers to rotate, and then the fixing frame is driven by the hydraulic cylinder and moves downward, and different size mandrels installed on the clamping seat are sequentially contacted with the conveying belt, when all the mandrels are contacted with the conveying belt, the conveying belt can be tensioned, then the conveying belt is contacted with three groups of supporting rollers, and the drive motor is used in cooperation with the supporting rollers to drive the conveying belt, and cooperation with the rotation of the mandrel can quickly polish the mandrel of different sizes.

[0016] 2、 the utility model discloses the cooperation of limiting block, and the conveying belt is limited, so that the conveying belt is attached to three groups of supporting rollers, and the conveying belt can be attached to the supporting rollers in the process from relaxation to tensioning. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Fig. 2 It is a three-dimensional structure schematic view of the utility model;

[0019] Fig. 3 It is a three-dimensional structure schematic view of the utility model fixing frame and mounting shell;

[0020] Fig. 4 It is a three-dimensional structure schematic view of the utility model mounting shell.

[0021] Numbers in the figure: 1. Base; 2. Hydraulic cylinder; 3. Fixed frame; 4. Connecting frame; 5. Mounting shell; 6. Support roller; 7. Conveyor belt; 8. Driving motor; 9. Translation assembly; 91. Threaded rod; 92. Threaded sleeve; 93. Servo motor; 10. First support plate; 11. Second support plate; 12. Clamping seat; 13. Driving assembly; 131. Movable cylinder; 132. Electric push rod; 133. Fixed box; 134. Rotating motor; 135. Rotating shaft; 136. Driving bevel gear; 137. Driven bevel gear; 14. Slide rod; 15. Limiting roller; 16. Groove; 17. Slide; 18. Slider; 19. Limiting block; 20. Support spring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figs. 1-4 The polishing device for core shaft processing shown in the figure includes a base 1, two groups of hydraulic cylinders 2 are fixed on the top of the base 1, the piston rods of the hydraulic cylinders 2 are fixed to a fixed frame 3, a connecting frame 4 is movably provided at the bottom of the fixed frame 3, a mounting shell 5 is fixed to the bottom of the connecting frame 4, the inner cavity of the connecting frame 4 is rotatably connected to three groups of support rollers 6 distributed in an equilateral triangle shape through bearings, the outer side of the support rollers 6 is sleeved with a conveyor belt 7, the outer side of the conveyor belt 7 is a polishing surface, a driving motor 8 is fixed to the outer side of the mounting shell 5, the output shaft of the driving motor 8 passes through the inner side of the mounting shell 5 and is key-connected to a group of support rollers 6, the inner cavity of the fixed frame 3 is provided with a translation component 9 for moving the connecting frame 4, a first support plate 10 and a second support plate 11 are fixed to the top of the base 1, a clamping seat 12 is provided between the first support plate 10 and the second support plate 11, the core shaft to be processed is clamped between the clamping seats 12, and a driving component 13 for driving the clamping seat 12 to rotate is provided on the outer side of the first support plate 10 and the second support plate 11;

[0024] A group of support rollers 6 are driven to rotate by the driving motor 8, and then the fixed frame 3 moves the mounting shell 5 downward under the drive of the hydraulic cylinder 2, so that the mandrels of different sizes installed on the clamping seat 12 contact the conveyor belt 7 in turn. When all the mandrels are in contact with the conveyor belt 7, the conveyor belt 7 can be tensioned, and then the conveyor belt 7 contacts the three groups of support rollers 6. The driving motor 8 cooperates with the support rollers 6 to drive the conveyor belt 7. In conjunction with the rotation of the mandrel, the mandrels of different sizes can be quickly polished.

[0025] The translation assembly 9 includes a threaded rod 91 that rotates in the inner cavity of the fixed frame 3 through a bearing, and the outer side of the threaded rod 91 is threadedly connected to a threaded sleeve 92, and the threaded sleeve 92 is fixedly embedded in the connecting frame 4. A servo motor 93 is fixed to the outer side of the fixed frame 3, and the output shaft of the servo motor 93 passes through the inner cavity of the fixed frame 3 and is keyed to one end of the threaded rod 91. The servo motor 93 drives the threaded rod 91 to rotate, and then cooperates with the threaded sleeve 92 to drive the connecting frame 4 to slide at the bottom of the fixed frame 3, so that the conveyor belt 7 below is contacted with the surface of the core shaft in turn for polishing.

[0026] The driving assembly 13 includes a movable cylinder 131 rotatably connected to the first support plate 10 through a bearing, a group of clamping seats 12, one end of which is away from the core shaft and extends into the inner cavity of the movable cylinder 131, an electric push rod 132 is fixed to the outside of the movable cylinder 131, and the piston rod of the electric push rod 132 extends into the inner cavity of the movable cylinder 131 and is fixedly connected to the clamping seat 12, another group of clamping seats 12 is rotatably connected to the second support plate 11 through a bearing, a fixed box 133 is fixed to the side of the second support plate 11 away from the core shaft, a rotating motor 134 is fixed to the end of the fixed box 133, and the output shaft of the rotating motor 134 extends into the fixed box 133. The inner cavity of the fixed box 133 is fixed with a rotating shaft 135 that rotates on the inside of the fixed box 133, and a driving bevel gear 136 is fixed to the outside of the rotating shaft 135. One end of the clamping seat 12 passes through the inner cavity of the fixed box 133 and is fixed with a driven bevel gear 137 that meshes with the driving bevel gear 136. The electric push rod 132 drives a group of clamping seats 12 to move in the movable cylinder 131, so that the two groups of clamping seats 12 can be used to clamp and fix the core shaft. Then the rotating motor 134 drives the rotating shaft 135 and the driving bevel gear 136 to rotate, and then cooperates with the driven bevel gear 137 to drive multiple groups of clamping seats 12 to rotate the clamped core shaft.

[0027] Sliding sleeves are embedded around the bottom of the fixed frame 3, and the inner cavity of the sliding sleeve is slidably connected to the sliding rod 14. The bottom of the sliding rod 14 is fixed to the top of the base 1. Through the setting of the sliding sleeve, the fixed frame 3 is convenient to slide up and down on the sliding rod 14, which assists in limiting the support of the fixed frame 3 and ensures the stability of the fixed frame 3.

[0028] The inner cavity of the mounting shell 5 is rotatably connected to multiple sets of limiting rollers 15 through bearings. The bottom of the mounting shell 5 is provided with multiple sets of grooves 16, and the grooves 16 are located between adjacent limiting rollers 15. Through the setting of the limiting rollers 15, the conveyor belt 7 can be supported to ensure that different sections of the conveyor belt 7 can fit in contact with core shafts of different sizes.

[0029] A slide groove 17 is provided at the bottom of the fixed frame 3, and a slider 18 is fixed to the top of the connecting frame 4. The slider 18 penetrates the inner cavity of the slide groove 17. The slider 18 slides in the slide groove 17, which facilitates the limiting of the connecting frame 4 and ensures the stability of the connecting frame 4 and the mounting shell 5.

[0030] Three groups of limit blocks 19 are fixed on the inner side of the mounting shell 5, and the limit blocks 19 are fitted on the outer side of the conveyor belt 7. Through the cooperation of the limit blocks 19, the conveyor belt 7 can be limited conveniently, so that the conveyor belt 7 fits with the three groups of support rollers 6, avoiding the conveyor belt 7 from being unable to fit with the support rollers 6 during the process of going from relaxation to tension.

[0031] A support spring 20 is sleeved on the outer side of the slide rod 14 . The support spring 20 is located between the base 1 and the fixed frame 3 . The support spring 20 cooperates with the fixed frame 3 to assist in supporting the fixed frame 3 .

[0032] When in use, the mandrel to be processed is placed between the two groups of clamping seats 12, and then the electric push rod 132 drives one group of clamping seats 12 to approach the mandrel, and at the same time clamps and fixes the mandrel, and then starts the hydraulic cylinder 2, so that the hydraulic cylinder 2 drives the fixed frame 3 to move down, so that the installation shell 5 moves down synchronously, and then the conveyor belt 7 contacts the mandrel. As the installation shell 5 continues to move down, all the mandrels are in contact with the conveyor belt 7 with the cooperation of the limiting roller 15 and the conveyor belt 7 is kept taut, and the conveyor belt 7 is fitted with the three groups of support rollers 6, and the drive motor 8 is started, and the drive motor 8 drives the support roller 6 to move. The conveyor belt 7 rotates, and the polishing surface on the conveyor belt 7 is used to polish the surface of the core shaft. Then, the rotating motor 134 is started, and the rotating motor 134 drives the rotating shaft 135 to rotate. Then, the clamping seat 12 and the core shaft are rotated by the cooperation of the driving bevel gear 136 and the driven bevel gear 137. At the same time, the servo motor 93 is started, and the servo motor 93 drives the threaded rod 91 to rotate. With the cooperation of the threaded sleeve 92, the connecting frame 4 is moved at the bottom of the fixed frame 3, so that the core shaft can be polished in all directions, which is convenient for synchronous polishing of core shafts of different sizes.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for mandrel processing, comprising a base (1), characterized in that: Two groups of hydraulic cylinders (2) are fixed on the top of the base (1), the piston rods of the hydraulic cylinders (2) are fixed to a fixed frame (3), a connecting frame (4) is movably provided at the bottom of the fixed frame (3), a mounting shell (5) is fixed at the bottom of the connecting frame (4), the inner cavity of the connecting frame (4) is rotatably connected to three groups of support rollers (6) distributed in an equilateral triangle shape through bearings, the outer side of the support rollers (6) is provided with a conveyor belt (7), the outer side of the conveyor belt (7) is a polished surface, a driving motor (8) is fixed to the outer side of the mounting shell (5), the output of the driving motor (8) The shaft passes through the inner side of the mounting shell (5) and is key-connected to a group of support rollers (6); the inner cavity of the fixed frame (3) is provided with a translation assembly (9) for moving the connecting frame (4); a first support plate (10) and a second support plate (11) are fixed to the top of the base (1); a clamping seat (12) is provided between the first support plate (10) and the second support plate (11); a core shaft to be processed is clamped between the clamping seats (12); and a driving assembly (13) for driving the clamping seat (12) to rotate is provided on the outer side of the first support plate (10) and the second support plate (11).

2. A polishing device for core shaft processing according to claim 1, characterized in that: The translation assembly (9) comprises a threaded rod (91) which rotates in the inner cavity of the fixed frame (3) through a bearing, the outer side of the threaded rod (91) is threadedly connected to a threaded sleeve (92), and the threaded sleeve (92) is fixedly embedded in the connecting frame (4). A servo motor (93) is fixed on the outer side of the fixed frame (3), and the output shaft of the servo motor (93) passes through the inner cavity of the fixed frame (3) and is keyed to one end of the threaded rod (91).

3. A polishing device for core shaft processing according to claim 1, characterized in that: The driving assembly (13) includes a movable cylinder (131) rotatably connected to the first support plate (10) through a bearing, a group of clamping seats (12) with one end away from the core shaft extending through the inner cavity of the movable cylinder (131), an electric push rod (132) is fixed to the outer side of the movable cylinder (131), a piston rod of the electric push rod (132) extends through the inner cavity of the movable cylinder (131) and is fixedly connected to the clamping seat (12), another group of the clamping seats (12) is rotatably connected to the second support plate (11) through a bearing, and the second support plate (11) A fixed box (133) is fixed on the side away from the core shaft, a rotating motor (134) is fixed to the end of the fixed box (133), an output shaft of the rotating motor (134) passes through the inner cavity of the fixed box (133) and is fixed with a rotating shaft (135) rotating on the inner side of the fixed box (133), a driving bevel gear (136) is fixed to the outer side of the rotating shaft (135), and one end of the clamping seat (12) passes through the inner cavity of the fixed box (133) and is fixed with a driven bevel gear (137) meshing with the driving bevel gear (136).

4. A polishing device for core shaft processing according to claim 1, characterized in that: Sliding sleeves are embedded around the bottom of the fixed frame (3), and the inner cavity of the sliding sleeve is slidably connected to a sliding rod (14), and the bottom of the sliding rod (14) is fixed to the top of the base (1).

5. A polishing device for core shaft processing according to claim 4, characterized in that: The inner cavity of the installation shell (5) is rotatably connected to multiple groups of limiting rollers (15) through bearings, and the bottom of the installation shell (5) is provided with multiple groups of grooves (16), and the grooves (16) are located between adjacent limiting rollers (15).

6. A polishing device for core shaft processing according to claim 5, characterized in that: A sliding groove (17) is provided at the bottom of the fixing frame (3), and a sliding block (18) is fixed at the top of the connecting frame (4), and the sliding block (18) penetrates into the inner cavity of the sliding groove (17).

7. A polishing device for core shaft processing according to claim 6, characterized in that: Three groups of limit blocks (19) are fixed on the inner side of the installation shell (5), and the limit blocks (19) are attached to the outer side of the conveyor belt (7).

8. The polishing device for core shaft processing according to claim 4, characterized in that: A support spring (20) is sleeved on the outer side of the slide rod (14), and the support spring (20) is located between the base (1) and the fixed frame (3).

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