A polishing device for producing a casting

Abstract

A grinding apparatus for producing castings. This relates to the field of casting production equipment. It includes a vertical plate, a drive shaft, and two driven shafts. The two driven shafts are arranged along the same horizontal line. The drive shaft is located above the two driven shafts and arranged in a triangular pattern between them. Rollers are fitted onto both the drive shaft and the driven shafts, and a grinding belt is wound between the three rollers. A pair of pressure shafts are also provided between the two driven shafts to press down on the grinding belt. This application can significantly improve the grinding effect on castings.

Description

Technical Field

[0001] This application relates to the field of casting production equipment, specifically to a grinding device for producing castings. Background Technology

[0002] Liquid metal is poured into a mold cavity that is adapted to the shape and size of the part, and then cooled and solidified to obtain a blank or part called a casting. After casting is completed, the casting needs to be polished to improve the surface smoothness, which can also improve dimensional accuracy and improve mechanical properties.

[0003] Chinese patent document CN220533807U discloses a metal casting polishing device, specifically a conveying device for transporting workpieces. The conveying device includes a first conveyor belt, a second conveyor belt, and a third conveyor belt arranged sequentially. A positioning rail is installed above the conveying device. A first polishing device is installed between the first and second conveyor belts, and a second polishing device is installed between the second and third conveyor belts. A pressure beam with pressure rollers is installed on the conveying device to longitudinally fix the workpiece. This polishing device can grind and polish the bottom and sides of the workpiece. It is easy to operate, provides good polishing results, effectively reduces the workload of workers, and improves polishing efficiency, making it suitable for widespread application.

[0004] However, in the aforementioned patent, the shape and position of the grinding plate and grinding belt that perform the grinding function are fixed, and cannot be adapted to the uneven surface of the casting, resulting in a poor overall grinding effect. Utility Model Content

[0005] In order to overcome the problem of poor grinding effect in the prior art, this application provides a grinding device for producing castings.

[0006] This application adopts the following technical solution: a grinding device for producing castings, including a vertical plate, a drive shaft and two driven shafts, the two driven shafts are arranged along the same horizontal line, the drive shaft is located above the two driven shafts and arranged in a triangular shape between the two driven shafts, and a winding roller is sleeved on both the drive shaft and the driven shafts, and a grinding belt is wound between the three winding rollers;

[0007] A pair of pressure shafts are also provided between the two driven shafts, and the pair of pressure shafts are used to press down the grinding belt.

[0008] Optionally, both the drive shaft and the driven shaft pass through the vertical plate, and one end of the drive shaft and one end of the driven shaft are provided with the winding roller, while the other end of the drive shaft and the other end of the driven shaft are provided with a first bearing seat;

[0009] One end of the pressure shaft is attached to the inner side of the grinding belt, and the other end of the pressure shaft is provided with a second bearing seat, with a connecting rod between the two second bearing seats.

[0010] Optionally, the portion of the grinding belt located between the two driven shafts is horizontal.

[0011] Optionally, the upper part of the upright plate is provided with a waist hole extending in the vertical direction, the lower part of the upright plate is provided with a notch, the drive shaft passes through the waist hole and can move up and down in the waist hole, and the pressure shaft is located in the notch and can move up and down in the notch;

[0012] A movable plate is provided on the outer side of the upright plate. A motor is mounted on the movable plate via a support seat. The output shaft of the motor is connected to the drive shaft. A first bearing seat on the drive shaft is fixed on the movable plate, and a first bearing seat on the driven shaft is fixed on the upright plate.

[0013] Optionally, a fixed plate is provided on the upright plate and below the movable plate. A first hydraulic cylinder is provided at the top of the fixed plate and a second hydraulic cylinder is provided at the bottom of the fixed plate. The first hydraulic cylinder is used to push the movable plate and the second hydraulic cylinder is used to push the connecting rod.

[0014] Optionally, the push rod of the first hydraulic cylinder is connected to the bottom center of the movable plate, and the push rod of the second hydraulic cylinder is connected to the top center of the connecting rod;

[0015] The first hydraulic cylinder drives the movable plate to move in the same direction as the second hydraulic cylinder drives the connecting rod to move in the same direction.

[0016] Compared to existing technologies, in this application, the grinding belt is wound around the outside of one drive shaft and two driven shafts and is in a tensioned state. The portion of the grinding belt located between the two driven shafts is used to contact the casting and grind the casting. Furthermore, through the synchronous downward movement of the drive shaft and the pressure shaft, the portion of the grinding belt located between the two pressure shafts is used to contact the casting and grind the casting. In this way, the downward pressure of the pressure shaft on the grinding belt changes the contact area between the grinding belt and the casting, thereby enabling grinding of different positions of the casting and effectively improving the grinding effect. Attached Figure Description

[0017] Figure 1 This is an illustrative three-dimensional representation of the present application. Figure 1 ;

[0018] Figure 2 This is an illustrative three-dimensional representation of the present application. Figure 2 ;

[0019] Figure 3 This is the front view of this application;

[0020] Figure 4 yes Figure 3 Reference diagram of the action state;

[0021] Figure 5 This is a side view of this application;

[0022] Figure 6 This is a reference diagram showing the assembly state of the grinding belt with the drive shaft and driven shaft;

[0023] In the diagram: 1. Vertical plate; 11. Waist hole; 12. Notch; 2. Drive shaft; 21. Winding roller; 22. First bearing seat; 3. Driven shaft; 4. Grinding belt; 5. Pressure shaft; 51. Second bearing seat; 52. Connecting rod; 53. Vibration motor; 6. Movable plate; 61. Support seat; 62. Motor; 7. Fixed plate; 71. First hydraulic cylinder; 72. Second hydraulic cylinder. Detailed Implementation

[0024] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] like Figure 1-6 As shown, a grinding device for producing castings is characterized by comprising a vertical plate 1, a drive shaft 2, and two driven shafts 3. The two driven shafts 3 are arranged along the same horizontal line. The drive shaft 2 is located above the two driven shafts 3 and arranged in a triangular pattern with the two driven shafts 3. Rollers 21 are fitted onto both the drive shaft 2 and the driven shafts 3. A grinding belt 4 is wound between the three rollers 21, with the grinding belt 4 connected end-to-end. When the grinding belt 4 is installed, it is in a taut state and forms a triangle. The portion of the grinding belt 4 between the two driven shafts 3 is horizontal. When the drive shaft 2 starts to rotate, the grinding belt 4 and the driven shafts 3 rotate synchronously. Thus, by contacting the casting with the rotating grinding belt 4, the casting can be ground.

[0026] A pair of pressure shafts 5 are also provided between the two driven shafts 3. The pair of pressure shafts 5 are used to press down the grinding belt 4. When there are depressions or narrow parts on the casting, the pressure shafts 5 and the drive shaft 2 move downward at the same time. While keeping the grinding belt 4 taut, the contact area between the grinding belt 4 and the casting is reduced, so that the grinding belt 4 can extend into the depressions or narrow parts on the casting, realizing all-round grinding of the casting and significantly improving the grinding effect.

[0027] Both the drive shaft 2 and the driven shaft 3 are mounted on the vertical plate 1. One end of the drive shaft 2 and one end of the driven shaft 3 are equipped with a winding roller 21, and the other end of both the drive shaft 2 and the driven shaft 3 are equipped with a first bearing seat 22. One end of the pressure shaft 5 is in contact with the inner side of the grinding belt 4, and the other end of the pressure shaft 5 is equipped with a second bearing seat 51. A connecting rod 52 is provided between the two second bearing seats 51. Under the action of the first bearing seat 22 and the second bearing seat 51, the drive shaft 2 and the driven shaft 3 can be reliably fixed without affecting their rotation around their own axis, thus ensuring that the grinding belt 4 can always be kept taut. Sufficient friction exists between the winding roller 21 and the grinding belt 4, ensuring that the grinding belt 4 rotates synchronously after the drive shaft 2 rotates. The winding roller 21 also acts as a limiter for the grinding belt 4, preventing it from falling off the drive shaft 2 during grinding.

[0028] The upper part of the upright plate 1 has a waist hole 11 extending vertically, and the lower part of the upright plate 1 has a notch 12. The drive shaft 2 passes through the waist hole 11 and can move up and down within the waist hole 11. The pressure shaft 5 is located within the notch 12 and can move up and down within the notch 12. The waist hole 11 and the notch 12 provide space for the movement of the drive shaft 2 and the pressure shaft 5, thereby ensuring that the grinding belt 4 will not break due to excessive tension when the shape of the grinding belt 4 is changed to adapt to the surface of the casting. The outer side of the upright plate 1 has a movable plate 6. The movable plate 6 is equipped with a motor 62 via a support base 61. The output shaft of the motor 62 is connected to the drive shaft 2. The first bearing seat 22 on the drive shaft 2 is fixed on the movable plate 6, and the first bearing seat 22 on the driven shaft 3 is fixed on the upright plate 1. The motor 62 is reliably installed under the support of the support base 61. In this way, the motor 62 can reliably drive the drive shaft 2 to rotate, thereby realizing the driving effect of the grinding belt 4.

[0029] A fixed plate 7 is provided on the upright plate 1 and below the movable plate 6. A first hydraulic cylinder 71 is provided at the top of the fixed plate 7, and a second hydraulic cylinder 72 is provided at the bottom of the fixed plate 7. The first hydraulic cylinder 71 is used to push the movable plate 6, and the second hydraulic cylinder 72 is used to push the connecting rod 52. The push rod of the first hydraulic cylinder 71 is connected to the center of the bottom of the movable plate 6, and the push rod of the second hydraulic cylinder 72 is connected to the center of the top of the connecting rod 52. The moving direction of the movable plate 6 driven by the first hydraulic cylinder 71 is the same as the moving direction of the connecting rod 52 driven by the second hydraulic cylinder 72.

[0030] When adjustment of the grinding belt 4 is required, the push rod of the first hydraulic cylinder 71 retracts, causing the drive shaft 2 to move downwards. Simultaneously, the push rod of the second hydraulic cylinder 72 extends, causing the pressure shaft 5 to move downwards. This allows the grinding belt 4 to maintain tension while changing its shape. Specifically, when the two pressure shafts 5 are only in contact with or above the grinding belt 4, the grinding belt 4 forms a triangle, and its length between the two driven shafts 3 is at its maximum. When the two pressure shafts 5 move downwards, they exert downward pressure on the grinding belt 4. At this point, the length of the grinding belt 4 in a horizontal position between the two driven shafts 3 decreases, allowing for the grinding of narrow areas on the casting surface. Furthermore, when the connecting rod 52 is a telescopic rod, the distance between the two pressure shafts 5 can be changed through its extension and retraction, enabling more precise adjustment of the length of the grinding belt 4 in a horizontal position between the two driven shafts 3, maximizing the grinding effect. A vibration motor 53 can also be installed at the bottom of the connecting rod 52. In this way, the excitation force generated by the vibration motor 53 can be transmitted to the grinding belt 4 through the connecting rod 52 and the pressure shaft 5, which can remove the dust generated during the grinding process and adhering to the grinding belt 4.

[0031] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A grinding device for producing a cast, characterized in that, It includes a vertical plate (1), a drive shaft (2) and two driven shafts (3). The two driven shafts (3) are arranged along the same horizontal line. The drive shaft (2) is located above the two driven shafts (3) and is arranged in a triangular shape with the two driven shafts (3). Both the drive shaft (2) and the driven shafts (3) are fitted with winding rollers (21). A polishing belt (4) is wound between the three winding rollers (21). A pair of pressure shafts (5) are also provided between the two driven shafts (3), and the pair of pressure shafts (5) are used to press down the grinding belt (4).

2. A finishing device for producing a cast product according to claim 1, characterized in that The drive shaft (2) and the driven shaft (3) are both mounted on the vertical plate (1). One end of the drive shaft (2) and one end of the driven shaft (3) are provided with the winding roller (21). The other end of the drive shaft (2) and the other end of the driven shaft (3) are provided with the first bearing seat (22). One end of the pressure shaft (5) is attached to the inner side of the grinding belt (4), and the other end of the pressure shaft (5) is provided with a second bearing seat (51). A connecting rod (52) is provided between the two second bearing seats (51).

3. A finishing device for producing a cast product according to claim 2, wherein The portion of the grinding belt (4) located between the two driven shafts (3) is in a horizontal state.

4. A grinding device for producing castings according to claim 2, characterized in that, The upper part of the upright plate (1) is provided with a waist hole (11) extending in the vertical direction, and the lower part of the upright plate (1) is provided with a notch (12). The drive shaft (2) passes through the waist hole (11) and can move up and down in the waist hole (11). The pressure shaft (5) is located in the notch (12) and can move up and down in the notch (12). A movable plate (6) is provided on the outer side of the upright plate (1). A motor (62) is provided on the movable plate (6) via a support base (61). The output shaft of the motor (62) is connected to the drive shaft (2). The first bearing seat (22) on the drive shaft (2) is fixed on the movable plate (6). The first bearing seat (22) on the driven shaft (3) is fixed on the upright plate (1).

5. A finishing device for producing a cast product according to claim 4, wherein A fixed plate (7) is provided on the upright plate (1) and below the movable plate (6). A first hydraulic cylinder (71) is provided at the top of the fixed plate (7) and a second hydraulic cylinder (72) is provided at the bottom of the fixed plate (7). The first hydraulic cylinder (71) is used to push the movable plate (6) and the second hydraulic cylinder (72) is used to push the connecting rod (52).

6. A finishing device for producing a cast product according to claim 5, wherein The push rod of the first hydraulic cylinder (71) is connected to the bottom center of the movable plate (6), and the push rod of the second hydraulic cylinder (72) is connected to the top center of the connecting rod (52); The first hydraulic cylinder (71) drives the movable plate (6) to move in the same direction as the second hydraulic cylinder (72) drives the connecting rod (52) to move in the same direction.

Images