Automatic core repairing device for sand core of brake disc

Abstract

The utility model discloses an automatic core finishing device for a sand core of a brake disc. The workpiece inlet and outlet mechanism is used for driving the workpiece to be switched between a material taking station and a grinding station; the workpiece pressing mechanism is used for pressing the workpiece on the positioning and polishing station; the workpiece rotating mechanism is used for driving the workpiece on the polishing station to rotate and comprises an upper positioning block, a first driving part for driving the upper positioning block to rotate and a lower positioning block arranged opposite to the upper positioning block, the first driving part is installed on the workpiece pressing mechanism, and the lower positioning block is rotationally arranged on the workpiece inlet and outlet mechanism; the polishing mechanism is used for polishing the upper surface and the lower surface of the workpiece and comprises a first supporting base fixed to the rack, a polishing assembly moving up and down relative to the first supporting base and a second driving component moving up and down relative to the polishing assembly. According to the automatic core repairing device for the sand core of the brake disc, the production efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to foundry technology field, especially relate to a brake disc sand core automatic core repairing device. BACKGROUND

[0002] The brake disc sand core will produce coating accumulation area on the outer periphery of the upper and lower surfaces and the middle position of the lower surface after dip coating. In the prior art, manual polishing or robot is generally used for core repairing. Manual polishing has high labor intensity and low efficiency. The robot core repairing adopts the track walking mode, and the efficiency is low, the core repairing precision is difficult to control, and the cost is also high. UTILITY MODEL CONTENTS

[0003] Based on the above problems, the utility model aims at providing a brake disc sand core automatic core repairing device which can polish the upper and lower surfaces of the brake disc sand core, remove the coating accumulation and improve the production efficiency.

[0004] In order to overcome the defects of the prior art, the utility model provides the technical scheme:

[0005] A brake disc sand core automatic core repairing device, comprising:

[0006] A rack;

[0007] A workpiece in-out mechanism for switching the workpiece between a material taking station and a polishing station;

[0008] A workpiece pressing mechanism for positioning the workpiece on the polishing station;

[0009] A workpiece rotating mechanism for rotating the workpiece on the polishing station, comprising an upper positioning block, a first driving part for driving the upper positioning block to rotate and a lower positioning block oppositely arranged with the upper positioning block, the first driving part is installed on the workpiece pressing mechanism, and the lower positioning block is rotatably arranged on the workpiece in-out mechanism;

[0010] A polishing mechanism for polishing the upper and lower surfaces of the workpiece, comprising a first support seat fixed on the rack, a polishing assembly moving up and down relative to the first support seat and a second driving part for driving the polishing assembly to move up and down, the polishing assembly comprises a polishing support, an upper polishing head arranged on the polishing support for polishing the upper surface of the workpiece and a lower polishing head for polishing the lower surface of the workpiece.

[0011] In one of the embodiments, the polishing assembly further comprises a support block connected with the power output end of the second driving part, and the polishing support is detachably connected with the support block.

[0012] In one of the embodiments, the first support base is provided with a first guide rail component extending in the vertical direction, and the support block is provided with a first sliding block component in sliding connection with the first guide rail component.

[0013] In one of the embodiments, the grinding support frame comprises a first support plate and a second support plate extending in the horizontal direction and arranged in the up-down direction, and a connecting plate connecting the first support plate and the second support plate, the number of the upper grinding heads is one and arranged at the lower end of the first support plate, the number of the lower grinding heads is two and arranged at the upper end surface of the second support plate in a spaced manner, the connecting plate is provided with a connecting portion near one side of the support block, and the support block is provided with a mounting groove matched with the connecting portion.

[0014] In one of the embodiments, the workpiece in-out mechanism comprises a workpiece carrying table slidingly arranged on the table surface of the rack and a third driving component driving the workpiece carrying table to move in the horizontal direction.

[0015] In one of the embodiments, the upper end of the table surface is provided with a second sliding rail component extending in the horizontal direction, the lower end of the workpiece carrying table is provided with a second sliding block component in sliding connection with the second sliding rail component, the third driving component is installed at the lower end of the table surface and the power output end is connected with the workpiece carrying table through a driving plate, and the table surface is provided with a through slot for the driving plate to pass through.

[0016] In one of the embodiments, the workpiece carrying table is provided with a support base, and the first support shaft at the lower end of the lower positioning block is supported on the support base through a first bearing assembly.

[0017] In one of the embodiments, the workpiece pressing mechanism comprises a second support base fixed on the rack, a mounting frame moving up and down relative to the second support base, and a fourth driving component driving the mounting frame to move up and down.

[0018] In one of the embodiments, the mounting frame comprises a cantilever, a sliding plate arranged at one end of the cantilever, a mounting seat arranged at the other end of the cantilever, and a driving block connected between the sliding plate and the power output end of the fourth driving component, the second support base is provided with an avoiding slot for the driving block to pass through, the second support base is provided with a third sliding rail component extending in the vertical direction, and the sliding plate is provided with a third sliding block component in sliding connection with the third sliding rail component.

[0019] In one of the embodiments, the power output shaft of the first driving component is supported on the mounting seat through a second bearing assembly, the second support shaft at the upper end of the upper positioning block is connected with the power output shaft of the first driving component and supported on the mounting seat through a third bearing assembly.

[0020] Compared with the prior art, the utility model has the advantages of:

[0021] 1, through workpiece in and out mechanism can drive workpiece to move to the polishing station, workpiece pressing mechanism drives the upper locating block to descend and cooperates with the lower locating block and positions the workpiece, and then the lifting polishing mechanism can polish the lower surface and the upper surface of the workpiece respectively, improves the polishing efficiency;

[0022] 2, can change the polishing assembly according to the model of product, improve the applicability of the core repairing device. ACCURACY OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be needed to use the drawing in the embodiment description, the drawing in the following description is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0024] Figure 1 It is one of the structure schematic diagram of the utility model a kind of brake disc sand core automatic core repairing device embodiment;

[0025] Figure 2 It is the second part structure schematic diagram of the utility model embodiment;

[0026] Figure 3 It is the section structure schematic diagram of the utility model embodiment;

[0027] Figure 4 It is the structure schematic diagram of polishing assembly in the utility model embodiment;

[0028] Among them:

[0029] 1, rack; 1-1, table top; 1-1a, through slot; 2, first support seat; 3, polishing assembly; 3-1, polishing support; 3-1a, first support plate; 3-1b, connecting plate; 3-1c, second support plate; 3-2, support block; 3-3, upper polishing head; 3-4, lower polishing head; 4, second driving part; 5, first guide rail part; 6, first sliding block part; 7, first reinforcing rib assembly; 8, upper positioning block; 8-1, second support shaft; 8-2, clamping leg; 9, lower positioning block; 9-1, first support shaft; 10, first driving part; 11, workpiece bearing table; 11-1, support; 12, third driving part; 13, second sliding rail part; 14, second sliding block part; 15, second support seat; 15-1, avoiding groove; 16, mounting frame; 16-1, sliding plate; 16-2, cantilever; 16-3, mounting seat; 17, driving block; 18, first bearing assembly; 19, second bearing assembly; 20, third bearing assembly; 21, fourth driving part; 22, second reinforcing rib assembly; 23, workpiece; 24, third sliding rail part; 25, third sliding block part; 26, driving plate. DETAILED DESCRIPTION

[0030] The above scheme is further described below in combination with specific examples. It should be understood that these examples are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not specified are usually the conditions in the conventional experiments.

[0031] As shown in Figures 1 to 3 , it is a structure schematic diagram of the embodiment of the present application, and provides a brake disc sand core automatic core repairing device for polishing brake disc sand core workpieces, which comprises a rack 1, a workpiece in-out mechanism, a workpiece pressing mechanism, a workpiece rotating mechanism, a polishing mechanism and a control unit, and the workpiece in-out mechanism, the workpiece pressing mechanism, the workpiece rotating mechanism and the polishing mechanism are respectively signal connected with the control unit.

[0032] The workpiece rotating mechanism is used to drive the workpiece 23 on the polishing station to rotate, and comprises an upper positioning block 8, a first driving part 10 for driving the upper positioning block 8 to rotate and a lower positioning block 9 arranged opposite to the upper positioning block 8, wherein the first driving part 10 is a motor installed on the workpiece pressing mechanism, and the motor is signal connected with the control unit, which is prior art and will not be described herein.

[0033] The lower positioning block 9 is rotatably arranged on the workpiece feeding and discharging mechanism, and the lower positioning block 9 can be clamped in the groove at the middle of the lower end of the workpiece 23. The upper positioning block 8 is provided with a plurality of clamping legs 8-2, the clamping legs 8-2 are clamped at the middle of the upper end of the workpiece 23, and the workpiece 23 is clamped and fixed through the cooperation of the upper positioning block 8 and the lower positioning block 9. The upper positioning block 8 and the lower positioning block 9 are made of soft materials such as rubber, which can ensure the clamping force of the workpiece 23 and avoid abrasion of the workpiece 23.

[0034] The polishing mechanism is used for polishing the upper and lower surfaces of the workpiece 23, and comprises a first support seat 2 fixed on the rack 1, a polishing assembly 3 moving up and down relative to the first support seat 2, and a second driving component 4 driving the polishing assembly 3 to move up and down. The first support seat 2 is in an L-shaped structure and is fixed on the table surface 1-1 of the rack 1. In order to improve the strength of the structure, the first support seat 2 is provided with a first reinforcing rib assembly 7. The second driving component 4 is a servo cylinder installed below the table surface 1-1 of the rack 1, and is signal-connected with a control unit. This is a prior art, and will not be described herein. Meanwhile, the table surface 1-1 is provided with a through hole through which the power output end of the second driving component 4 passes. The servo cylinder is a prior art structure, and the travel of the polishing assembly 3 moving up and down is controlled by a servo motor in the servo cylinder, so as to polish the lower surface and the upper surface of the workpiece 23.

[0035] As shown in Figure 4 The polishing assembly 3 comprises a polishing support 3-1, an upper polishing head 3-3 arranged on the polishing support 3-1 and used for polishing the upper surface of the workpiece 23, and a lower polishing head 3-4 used for polishing the lower surface of the workpiece 23. Since the brake disc sand core is prone to coating accumulation on the circumferences of the upper and lower surfaces and the middle circumferences of the lower surface after dip coating, the number of the upper polishing head 3-3 is one, and the number of the lower polishing head 3-4 is two and is arranged in a spaced manner.

[0036] In order to facilitate the installation of the polishing heads, the polishing support 3-1 comprises a first support plate 3-1a and a second support plate 3-1c arranged in a vertical direction, and a connecting plate 3-1b connecting the first support plate 3-1a and the second support plate 3-1c. The upper polishing head 3-3 is arranged at the lower end of the first support plate 3-1a, and the lower polishing heads 3-4 are arranged in a spaced manner at the upper end surface of the second support plate 3-1c.

[0037] In order to facilitate the connection between the polishing support 3-1 and the second driving component 4, the polishing assembly 3 further comprises a support block 3-2 connected with the power output end of the second driving component 4, and the polishing support 3-1 is detachably connected with the support block 3-2. Specifically, the connecting plate 3-1b is provided with a connecting portion at one end close to the support block 3-2, and the support block 3-2 is provided with a mounting groove matched with the connecting portion. The connecting portion and the support block 3-2 are fixedly connected through bolts. During polishing, the polishing assembly 3 can be replaced according to the polishing requirements of products.

[0038] In order to facilitate the up and down movement of the polishing assembly 3, a first guide rail part 5 extending in the vertical direction is arranged on the first support base 2, and a first sliding block part 6 in sliding connection with the first guide rail part 5 is arranged on the support block 3-2, wherein the first guide rail part 5 comprises a first guide rail arranged along the height direction of the first support base 2, and the first sliding block part 6 comprises two first sliding blocks fixed on the support block and arranged in the up and down direction, and the sliding cooperation of the first sliding block and the first guide rail ensures the stability of the up and down movement of the polishing assembly 3.

[0039] The workpiece in-out mechanism is used for switching the workpiece 23 between the material taking station and the polishing station, and comprises a workpiece carrying table 11 slidingly arranged on the table top 1-1 of the rack 1 and a third driving part 12 driving the workpiece carrying table 11 to move in the horizontal direction, the workpiece carrying table 11 is arranged on the upper end of the table top 1-1, and the third driving part 12 is a cylinder installed below the table top 1-1 and in signal connection with the control unit, which is prior art and will not be described herein.

[0040] In order to facilitate the connection of the third driving part 12 and the workpiece carrying table 11, a driving plate 26 extending downward in the vertical direction is arranged on the workpiece carrying table 11, and the power output end of the third driving part 12 is connected with the driving plate 26, and meanwhile a through slot 1-1a is arranged on the table top 1-1 for the driving plate 26 to pass through.

[0041] In order to realize the horizontal movement of the workpiece carrying table 11, a second sliding rail part 13 extending in the horizontal direction is arranged on the upper end of the table top 1-1, and a second sliding block part 14 in sliding connection with the second sliding rail part 13 is arranged on the lower end of the workpiece carrying table 11, specifically, the second sliding rail part 13 comprises two second guide rails arranged on both sides of the width direction of the through slot 1-1a, the second sliding block part 14 comprises two second sliding blocks matched with the two second guide rails, and the driving plate 26 extends downward through the through slot 1-1a and is arranged between the two second sliding blocks. The two ends of the through slot 1-1a are respectively the material taking station and the polishing station, the positioning of the material taking station and the polishing station is realized through the stroke of the third driving part, and the through slot 1-1a has a guiding effect on the driving plate 26.

[0042] In order to facilitate the installation of the lower positioning block 9, a support 11-1 is arranged on the workpiece carrying table 11, a first support shaft 9-1 at the lower end of the lower positioning block 9 is supported on the support 11-1 through a first bearing assembly 18, and specifically, the first bearing assembly 18 comprises two combined needle bearings arranged along the axial direction of the first support shaft 9-1, and the combined needle bearing is prior art and is composed of a radial needle bearing and a thrust bearing, which will not be described herein.

[0043] The workpiece pressing mechanism comprises a second support base 15 fixed on the frame 1, a mounting frame 16 moving up and down relative to the second support base 15, and a fourth driving component 21 driving the mounting frame 16 to move up and down, the second support base 15 is in L-shaped structure, a second reinforcing rib assembly 22 is arranged on the second support base 15 to improve the stability of the structure, the fourth driving component 21 is a gas cylinder, the gas cylinder is signal connected with the control unit, the signal connection between the gas cylinder and the control unit is prior art, and will not be repeated here, the stroke of the gas cylinder controls the moving distance of the upper positioning block 8, and the upper positioning block 8 is pressed on the upper end of the workpiece 23.

[0044] The mounting frame 16 comprises a cantilever 16-2, a sliding plate 16-1 arranged at one end of the cantilever 16-2, a mounting seat 16-3 arranged at the other end of the cantilever 16-2, and a driving block 17 connecting the sliding plate 16-1 and the power output end of the fourth driving component 21, the cantilever 16-2 is arranged at the front end of the second support base 15, the fourth driving component 21 is installed at the rear end of the second support base 15, and the second support base 15 is provided with an avoiding groove 15-1 through which the driving block 17 passes.

[0045] The second support base 15 is provided with a third sliding rail component 24 extending in the vertical direction, and the sliding plate 16-1 is provided with a third sliding block component 25 in sliding connection with the third sliding rail component 24, the third sliding rail component 24 comprises two third sliding rails arranged on both sides of the avoiding groove 15-1, and the third sliding block component 25 comprises four third sliding blocks arranged on the sliding plate 16-1 and matched with the two third sliding rails, and each two third sliding blocks are in sliding connection with the third sliding rail.

[0046] The first driving component 10 is installed on the mounting seat 16-3, the second support shaft 8-1 at the upper end of the upper positioning block 8 is connected with the power output shaft of the first driving component 10 and is supported on the mounting seat 16-3 through the second bearing assembly 19 and the third bearing assembly 20, wherein the second bearing assembly 19 is a centripetal bearing, and the third bearing assembly 20 is a combined needle bearing.

[0047] The working principle of the utility model is as follows:

[0048] The workpiece 23 (brake disc sand core) is placed on the workpiece carrying table 11 at the taking position by artificial or robot, the third driving part 12 is started by the third button connected with the control unit, the third driving part 12 drives the workpiece carrying table 11 to move to the polishing position, at this time, the workpiece 23 is located between the upper polishing head 3-3 and the lower polishing head 3-4, the fourth driving part 21 is started by the fourth button connected with the control unit, the fourth driving part 21 drives the mounting frame 16 to move downwards, so that the upper positioning block 9 is pressed on the workpiece 23, the first driving part 10 is started by the first button connected with the control unit, the first driving part 10 drives the upper positioning block 9 to rotate, and then drives the workpiece 23 to rotate, the second driving part 4 is started by the second button connected with the control unit, the second driving part 4 drives the polishing assembly 3 to rise, the lower surface of the rotating workpiece 23 is polished by the lower polishing head 3-4, then the second driving part 4 drives the polishing assembly 3 to descend, the upper surface of the rotating workpiece 23 is polished by the upper polishing head 3-3, after the upper surface is polished (the polishing effect is observed by visual observation, generally 1 to 2 circles are polished), the second driving part 4 drives the polishing assembly 3 to move to the original position, the first driving part 10 stops working, the fourth driving part 4 drives the upper positioning block 9 to rise and reset, the third driving part 12 drives the workpiece carrying table 11 to move to the taking position, the workpiece 23 after polishing can be taken down by artificial or robot and the next workpiece 23 needing polishing is placed.

[0049] In summary, the core repairing device can polish and repair the brake disc sand core, reduce labor intensity and improve production efficiency.

[0050] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered in the protection scope of the present application.

Claims

1. An automatic core dressing apparatus for brake disc sand cores, characterized in that, The utility model relates to a polishing device for polishing the upper and lower surfaces of workpieces, comprising a frame, a workpiece feeding and discharging mechanism for switching the workpieces between a workpiece taking position and a polishing position, a workpiece pressing mechanism for positioning the workpieces on the polishing position, a workpiece rotating mechanism for rotating the workpieces on the polishing position, a polishing mechanism for polishing the upper and lower surfaces of the workpieces, and a first driving component for driving the workpiece rotating mechanism. The workpiece rotating mechanism comprises an upper positioning block, a first driving component for driving the upper positioning block to rotate, and a lower positioning block arranged opposite to the upper positioning block. The first driving component is mounted on the workpiece pressing mechanism, and the lower positioning block is rotatably arranged on the workpiece feeding and discharging mechanism. The polishing mechanism comprises a first support seat fixed on the frame, a polishing assembly moving up and down relative to the first support seat, and a second driving component for driving the polishing assembly to move up and down. The polishing assembly comprises a polishing support, an upper polishing head arranged on the polishing support for polishing the upper surface of the workpiece, and a lower polishing head for polishing the lower surface of the workpiece. The polishing support is detachably connected with the support block.

2. The automatic brake disc core trimming apparatus of claim 1, wherein: The first support seat is provided with a first guide rail component extending in the vertical direction.

3. The automatic brake disc core trimming apparatus of claim 2, wherein: The support block is provided with a first sliding block component in sliding connection with the first guide rail component.

4. The brake disc sand core automatic core dressing apparatus according to claim 2, characterized in that: The polishing support comprises a first support plate and a second support plate extending in the horizontal direction and arranged in the vertical direction, and a connecting plate connecting the first support plate and the second support plate.

5. The brake disc sand core automatic back machining device of claim 1, wherein: The number of the upper polishing head is one and arranged at the lower end of the first support plate.

6. The brake disc sand core automatic back machining device of claim 5, wherein: The number of the lower polishing head is two and arranged at the upper end surface of the second support plate in a spaced manner.

7. The brake disc sand core automatic back machining device of claim 5, wherein: The connecting plate is provided with a connecting portion on the side close to the support block.

8. The brake disc sand core automatic back machining device of claim 1, wherein: The workpiece feeding and discharging mechanism comprises a workpiece carrying table slidingly arranged on the table top of the frame, and a third driving component for driving the workpiece carrying table to move in the horizontal direction.

9. The brake disc sand core automatic back machining device of claim 8, wherein: The upper end of the table top is provided with a second sliding rail component extending in the horizontal direction. The lower end of the workpiece carrying table is provided with a second sliding block component in sliding connection with the second sliding rail component. The third driving component is mounted at the lower end of the table top and the power output end thereof is connected with the workpiece carrying table through a driving plate. The table top is provided with a through slot for the driving plate to pass through. The workpiece carrying table is provided with a support. The workpiece pressing mechanism comprises a second support seat fixed on the frame, a mounting frame moving up and down relative to the second support seat, and a fourth driving component for driving the mounting frame to move up and down. The mounting frame comprises a cantilever, a sliding plate arranged at one end of the cantilever, a mounting seat arranged at the other end of the cantilever, and a driving block connected between the sliding plate and the power output end of the fourth driving component. The second support seat is provided with an avoiding slot for the driving block to pass through. The second support seat is provided with a third sliding rail component extending in the vertical direction. The sliding plate is provided with a third sliding block component in sliding connection with the third sliding rail component.

10. The brake disc sand core automatic back machining device of claim 9, wherein: The power output shaft of the first driving component is supported on the mounting base through a second bearing assembly, and the second support shaft at the upper end of the upper positioning block is connected with the power output shaft of the first driving component and is supported on the mounting base through a third bearing assembly.

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