Polishing device for casting blank machining

Abstract

The utility model belongs to the field of polishing devices, and particularly relates to a polishing device for casting blank machining, which comprises a table top, a frame is fixedly connected to the upper end of the table top, a hydraulic cylinder is fixedly mounted at the upper end of the frame, a moving plate is fixedly connected to the lower end of the output end of the hydraulic cylinder, and a buffer rod is slidably connected into the moving plate. The lower end of the buffer rod is fixedly connected with a fixing frame, and a replacement mechanism is arranged on the fixing frame. According to the utility model, the positive and negative screw rod, the movable frame, the roller frame and other structures are additionally arranged on the fixed frame, when the polishing belt needs to be replaced, the positive and negative screw rod is rotated, the positive and negative screw rod can drive the movable frame to move through screw-thread fit with the movable frame, the movable frame can release the elastic force of the spring II, and after the elastic force of the spring II disappears, the roller frame can move. The supporting roller can be conveniently moved, the polishing belt cannot be supported after the supporting roller is moved, and therefore the polishing belt can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing devices, in particular to a polishing device for machining cast blanks. Background Technique

[0002] A cast blank is a workpiece formed by die casting. During the machining process of the cast blank, the outer side of the casting needs to be polished to smooth the irregular parts of the casting. In order to further improve the accuracy of the casting, the polished casting needs to be polished. However, in the prior art, during the use of the polishing equipment, the cast blank needs to be polished by a polishing belt. During the polishing process, the polishing belt will be worn and needs to be replaced regularly. However, the polishing belt is not easy to disassemble, which affects the normal use of the device. Moreover, during the polishing process of the cast blank, the casting does not have a regular shape and has an arc surface on its outer shape, resulting in insufficient polishing of the equipment. Therefore, the prior art needs to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a polishing device for machining cast blanks, which solves the problems that the polishing belt is not easy to replace and the arc surface is not easy to polish.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A polishing device for machining cast blanks, including a tabletop, a frame is fixedly connected to the upper end of the tabletop, a hydraulic cylinder is fixedly installed on the upper end of the frame, a moving plate is fixedly connected to the lower end of the output end of the hydraulic cylinder, a buffer rod is slidably connected inside the moving plate, a fixed frame is fixedly connected to the lower end of the buffer rod, a replacement mechanism is arranged on the fixed frame, a driving roller is installed inside the fixed frame through a bearing, a polishing belt is in contact with the outer side of the driving roller, a motor is fixedly installed on the back of the fixed frame, and a first spring is arranged on the outer side of the buffer rod.

[0005] Preferably, four uniformly distributed guiding frames are fixedly connected to the outer side of the moving plate, and the guiding frames are slidably connected to the columns of the frame. The guiding frames can guide the movement of the moving plate.

[0006] Preferably, the output shaft of the motor is fixedly connected to the driving roller, one end of the first spring is fixedly connected to the moving plate, and the other end of the first spring is fixedly connected to the fixed frame. The first spring can support the fixed frame by its elastic force.

[0007] Preferably, the replacement mechanism includes a left - right screw. The upper end of the fixed frame is installed with a left - right screw through a bearing. A moving frame is connected to the outside of the left - right screw by thread. Two symmetrically distributed guide rod frames are fixedly connected inside the fixed frame. A roller frame is slidably connected to the outside of the guide rod frame. A driven roller is installed inside the roller frame through a bearing. A second spring is arranged outside the guide rod frame. The driven roller contacts the polishing belt, and the moving frame can compress the second spring.

[0008] Preferably, a driving wheel is fixedly connected to the outside of the left - right screw. The moving frame is slidably connected to the fixed frame and is also slidably connected to the guide rod frame. The driving wheel can drive the left - right screw to rotate.

[0009] Preferably, one end of the second spring is fixedly connected to the moving frame, and the other end is fixedly connected to the roller frame. The second spring can support the roller frame through its elastic force.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. By adding structures such as a left - right screw, a moving frame, and a roller frame to the fixed frame in the present utility model, when the polishing belt needs to be replaced, the left - right screw is rotated. The left - right screw can drive the moving frame to move through the thread fit with the moving frame. The moving frame can release the elastic force of the second spring. After the elastic force of the second spring disappears, the support roller can be conveniently moved. After the support roller moves, it cannot support the polishing belt, so that the polishing belt can be conveniently replaced.

[0012] 2. By adding structures such as a buffer rod, a roller frame, and a second spring to the fixed frame in the present utility model, during use, the fixed frame can be supported by the first spring outside the buffer rod, and at the same time, the roller frame and the support roller can be supported by the second spring. After the pressure increases, the polishing belt can deform and wrap the arc surface of the casting blank, so that the casting blank can be conveniently polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the three - dimensional view of the overall structure of the present utility model Figure 1 ;

[0014] Figure 2 is the three - dimensional view of the overall structure of the present utility model Figure 2 ;

[0015] Figure 3 is the enlarged three - dimensional view of the partial structure of the present utility model Figure 1 ;

[0016] Figure 4 is the Figure 3Stereoscopic enlarged view of the positive and negative screw rod;

[0017] Figure 5 For the present utility model Figure 3 Stereoscopic enlarged view of the moving frame;

[0018] Figure 6 For the present utility model Figure 3 Stereoscopic enlarged view of the roller frame.

[0019] In the figure: 1, table top; 2, frame; 3, hydraulic cylinder; 4, moving plate; 5, guiding frame; 6, buffer rod; 7, fixed frame; 8, replacement mechanism; 9, driving roller; 10, motor; 11, polishing belt; 12, first spring; 81, positive and negative screw rod; 82, moving frame; 83, driving wheel; 84, guide rod frame; 85, roller frame; 86, driven roller; 87, second spring. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , a polishing device for casting blank processing, including a table top 1, a frame 2 is fixedly connected to the upper end of the table top 1, a hydraulic cylinder 3 is fixedly installed on the upper end of the frame 2, a moving plate 4 is fixedly connected to the lower end of the output end of the hydraulic cylinder 3, a buffer rod 6 is slidably connected inside the moving plate 4, a fixed frame 7 is fixedly connected to the lower end of the buffer rod 6, a replacement mechanism 8 is arranged on the fixed frame 7, a driving roller 9 is installed inside the fixed frame 7 through a bearing, a polishing belt 11 is in contact with the outside of the driving roller 9, a motor 10 is fixedly installed on the back of the fixed frame 7, and a first spring 12 is arranged outside the buffer rod 6.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , four guiding frames 5 are fixedly connected to the outside of the moving plate 4 and are evenly distributed. The guiding frames 5 are slidably connected to the columns of the frame 2. The guiding frames 5 can guide the movement of the moving plate 4. The output shaft of the motor 10 is fixedly connected to the driving roller 9. One end of the first spring 12 is fixedly connected to the moving plate 4, and the other end of the first spring 12 is fixedly connected to the fixed frame 7. The first spring 12 can support the fixed frame 7 through elastic force.

[0023] Please refer to Figure 1 ,Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , the replacement mechanism 8 includes a left - right screw 81. The upper end of the fixed frame 7 is installed with the left - right screw 81 through a bearing. The outside of the left - right screw 81 is thread - connected with a moving frame 82. Two symmetrically distributed guide - rod frames 84 are fixedly connected inside the fixed frame 7. The outside of the guide - rod frame 84 is slidably connected with a roller frame 85. A driven roller 86 is installed inside the roller frame 85 through a bearing. A second spring 87 is arranged outside the guide - rod frame 84. The driven roller 86 contacts the polishing belt 11. The moving frame 82 can compress the second spring 87. A driving wheel 83 is fixedly connected to the outside of the left - right screw 81. The moving frame 82 is slidably connected with the fixed frame 7 and the moving frame 82 is slidably connected with the guide - rod frame 84. The driving wheel 83 can drive the left - right screw 81 to rotate. One end of the second spring 87 is fixedly connected to the moving frame 82 and the other end of the second spring 87 is fixedly connected to the roller frame 85. The second spring 87 can support the roller frame 85 through elastic force.

[0024] The specific implementation process of the present utility model is as follows: During use, rotate the driving wheel 83. The driving wheel 83 drives the left - right screw 81 to rotate. During the forward rotation of the left - right screw 81, through the thread cooperation with the moving frame 82, the moving frame 82 is driven to move. When the moving frame 82 does not compress the second spring 87, then move the driven roller 86. When the driven roller 86 disengages from the polishing belt 11, the polishing belt 11 can be conveniently removed. Then, a new polishing belt 11 is sleeved outside the driving roller 9 and the driven roller 86. Then, rotate the driving wheel 83 in the reverse direction. The driving wheel 83 drives the left - right screw 81 to rotate. Then, through the thread cooperation with the moving frame 82, the second spring 87 can be extruded. After the second spring 87 is extruded, it generates elastic force. This elastic force can tighten the polishing belt 11 through the driven roller 86, so that the replacement of the polishing belt 11 can be completed conveniently and quickly;

[0025] During the process of polishing the rough casting, the motor 10 is started. The motor 10 drives the driving roller 9 to rotate, and the driving roller 9 drives the polishing belt 11 to rotate. At the same time, the hydraulic cylinder 3 is started, and the hydraulic cylinder 3 drives the moving plate 4 and the fixing frame 7 to move downward. During the movement of the fixing frame 7, it can drive the polishing belt 11 to contact the casting. After contact, the casting can be polished by the moving polishing belt 11. And after contact, the elastic force of the first spring 12 can push the polishing belt 11 to press against the outer side of the casting. When it is necessary to polish the arc surface, a downward pressure is applied to the fixing frame 7 through the hydraulic cylinder 3. After the pressure of the fixing frame 7 is transmitted to the polishing belt 11, the polishing belt 11 can be deformed. The polishing belt 11 can compress the second spring 87 through the driven roller 86. The second spring 87 can continuously tension the polishing belt 11 through the elastic force. After the polishing belt 11 is deformed, it can fit the arc surface of the casting more closely, so that the arc surface of the casting can be polished conveniently.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for processing a rough casting, comprising a table (1), characterized in that: The upper end of the table top (1) is fixedly connected to a frame (2), the upper end of the frame (2) is fixedly mounted with a hydraulic cylinder (3), the lower end of the output end of the hydraulic cylinder (3) is fixedly connected to a movable plate (4), the interior of the movable plate (4) is slidably connected with a buffer rod (6), the lower end of the buffer rod (6) is fixedly connected to a fixed frame (7), a replacement mechanism (8) is provided on the fixed frame (7), a driving roller (9) is installed inside the fixed frame (7) via a bearing, the outer side of the driving roller (9) contacts a polishing belt (11), a motor (10) is fixedly mounted on the back side of the fixed frame (7), and a spring (12) is provided on the outer side of the buffer rod (6).

2. The polishing device for casting blank processing according to claim 1 is characterized in that: Four evenly distributed guide frames (5) are fixedly connected to the outer side of the movable plate (4), and the guide frames (5) are slidably connected to the pillars of the frame (2).

3. The polishing device for casting blank processing according to claim 1 is characterized in that: The output shaft of the motor (10) is fixedly connected to the driving roller (9), one end of the spring 1 (12) is fixedly connected to the movable plate (4), and the other end of the spring 1 (12) is fixedly connected to the fixed frame (7).

4. The polishing device for casting blank processing according to claim 1 is characterized in that: The replacement mechanism (8) comprises a forward and reverse screw (81), the upper end of the fixed frame (7) is equipped with the forward and reverse screw (81) via a bearing, the outer side of the forward and reverse screw (81) is connected to a movable frame (82) via a thread, the interior of the fixed frame (7) is fixedly connected to two symmetrically distributed guide rod frames (84), the outer side of the guide rod frame (84) is slidably connected to a roller frame (85), the interior of the roller frame (85) is equipped with a driven roller (86) via a bearing, the outer side of the guide rod frame (84) is provided with a second spring (87), and the driven roller (86) is in contact with the polishing belt (11).

5. The polishing device for casting blank processing according to claim 4 is characterized in that: A driving wheel (83) is fixedly connected to the outer side of the forward and reverse screw rods (81); the movable frame (82) is slidably connected to the fixed frame (7); and the movable frame (82) is slidably connected to the guide rod frame (84).

6. The polishing device for casting blank processing according to claim 4, characterized in that: One end of the second spring (87) is fixedly connected to the movable frame (82), and the other end of the second spring (87) is fixedly connected to the roller frame (85).

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