Polishing machine for plane nozzle of casting

Abstract

The utility model belongs to the technical field of grinding equipment, and discloses a casting plane water gap grinding machine for casting machining, which comprises a rack, a grinding tool frame and a clamp, the grinding tool frame and the clamp are arranged on the rack, the grinding tool frame is connected with a grinding machine, two ends of the grinding machine can vertically swing around the grinding tool frame, a servo swing mechanism is arranged on the rack, and the servo swing mechanism is connected with the clamp. The output end of the servo swing mechanism is movably connected to the swing end of one side of the polishing component, the clamp is arranged on an X-Y plane moving mechanism, and the polishing belt wheel is located above the clamp. Compared with the prior art, the water gap polishing device has a good machining effect on batch polishing work of water gaps on casting planes, is simple and reliable in overall structure and low in manufacturing and maintenance cost, and has good application and popularization value in small and medium-sized enterprises.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding equipment. More precisely, it discloses a kind of casting plane nozzle grinding machine for casting processing. Background Technique

[0002] Castings are mass-produced workpieces made by pouring molten metal into a mold and waiting for it to cool naturally according to the mold shape. Compared with the processing of tools such as direct cutting of metal ingots, casting workpieces are easy to mass-produce and have high production efficiency. However, correspondingly, the accuracy of the workpieces depends on the mold opening level. Especially considering the thermal expansion and contraction properties of metals, the size of the mold cavity often needs to be designed within a reasonable range. But no matter how accurate it is, after the final workpiece is cast, there will always be traces left by the raw material injection port for pouring the mold cavity - the nozzle. Therefore, after grinding, the workpiece can meet the most basic use standards.

[0003] Generally speaking, the general factory usually processes such nozzles by workers placing the workpieces one by one on a grinding wheel for grinding. Advanced factories may use more complex and higher-cost automated grinding equipment for targeted grinding. However, the former is obviously low in work efficiency and consumes human resources, while the latter's cost is relatively high for the process of nozzle treatment. And it is impossible for general factories to spend such costs to purchase large-scale automatic equipment specifically for grinding nozzles. Therefore, choosing a more compromising solution between cost and efficiency has become a technical direction worthy of optimization. Content of the Utility Model

[0004] In view of the technical defects existing in the background technique, the utility model proposes a casting plane nozzle grinding machine, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:

[0005] A casting plane nozzle grinding machine includes a frame, a grinding tool frame and a fixture arranged on the frame. A pair of horizontal hinge points or a horizontal shaft is provided on the grinding tool frame. A grinding member whose two ends can swing vertically around it is connected to the horizontal hinge point or the horizontal shaft. A servo swing mechanism is arranged above the frame, and the output end of the servo swing mechanism is movably connected to one swing end of the grinding member. The grinding member is composed of a grinding belt wheel and a driving motor for driving the grinding belt wheel to rotate;

[0006] The fixture is arranged on an X-Y plane moving mechanism. The X-Y plane moving mechanism is composed of an X-axis moving mechanism fixed on the frame and a Y-axis moving mechanism arranged on the moving end of the X-axis moving mechanism. The fixture includes a fixture seat fixedly connected to the moving end of the Y-axis moving mechanism and a clamping part arranged on the fixture seat. The grinding belt wheel is located above the fixture.

[0007] As a further technical solution of the present utility model, the servo swing mechanism is composed of a servo motor, a telescopic seat integrally connected to the servo motor, and a telescopic connecting rod disposed in the telescopic seat and linearly moving along the telescopic seat and drivingly connected to the output end of the servo motor. The movable end of the telescopic connecting rod is hinged to one swing end of the grinding member, and the servo motor and the telescopic seat are horizontally hinged to the frame.

[0008] As a further technical solution of the present utility model, the grinding member further includes a grinding tool seat with one swing end connected to the output end of the servo swing mechanism and simultaneously hinged to a horizontal hinge point or a horizontal axis, and a grinding shaft hinged to the grinding tool seat. The grinding belt pulley is coaxially connected to the grinding shaft, the driving motor is fixed on the grinding tool seat, and the output end of the driving motor is drivingly connected to the grinding shaft.

[0009] As a further technical solution of the present utility model, the grinding member further includes a belt pulley arm, one end of the belt pulley arm is movably connected with a grinding belt pulley and the other end is connected with a driven belt pulley, and a grinding abrasive belt is sleeved between the grinding belt pulley and the driven belt pulley.

[0010] As a further technical solution of the present utility model, the surface of the grinding belt pulley is provided with helical meshing teeth, and the grinding abrasive belt is provided with a meshing surface meshing with the grinding belt pulley.

[0011] As a further technical solution of the present utility model, a smooth shaft parallel to the axial direction of the horizontal hinge point or the horizontal axis is provided at the swing end of the grinding tool seat connected to the output end of the servo swing mechanism, and the output end of the servo swing mechanism is sleeved on the smooth shaft.

[0012] As a further technical solution of the present utility model, the clamping part is a pneumatic fixture, and the air circuit of the clamping part is connected with a servo air source.

[0013] As a further technical solution of the present utility model, the axial direction of the telescopic connecting rod with respect to the horizontal hinge point or the horizontal axis, the axial direction of the output end of the driving motor, and the axial direction of the grinding belt pulley are all perpendicular to each other.

[0014] The beneficial effects of the present utility model are as follows:

[0015] For the water inlet on the plane of the casting, under the condition of batch processing, this equipment has the technical effects of extremely low operation difficulty and good processing effect. Moreover, the overall structural complexity of the equipment is within the reasonable affordability range for small and medium-sized production enterprises, with low manufacturing and maintenance costs, so it has good popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the grinding machine for the water inlet on the plane of the casting described in the present utility model.

[0017] Figure 2 Schematic diagram of the three-dimensional structure of the casting flat nozzle grinding machine described in the present utility model Figure 1 。

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the casting flat nozzle grinding machine described in the present utility model Figure 2 。

[0019] Among them: frame 1, grinding tool frame 2, horizontal hinge point 20A, horizontal shaft 20B, grinding member 21, swing end 21A, grinding belt pulley 210, helical meshing teeth 210A, drive motor 211, grinding tool seat 212, grinding shaft 213, belt pulley arm 214, driven belt pulley 215, grinding abrasive belt 216, optical axis 217, fixture 3, fixture seat 30, clamping part 31, servo swing mechanism 4, servo motor 40, telescopic seat 41, telescopic connecting rod 42, X-Y plane moving mechanism 5, X-axis moving mechanism 50, Y-axis moving mechanism 51. Specific embodiments

[0020] The following combines the drawings with related embodiments to illustrate the implementation manners of the present utility model. The implementation manners of the present utility model are not limited to the following embodiments, and the related necessary components involved in the present utility model should be regarded as well-known technologies in the technical field, which can be known and mastered by those skilled in the technical field.

[0021] Combined with Figures 1 to 3 As shown, a casting flat nozzle grinding machine includes a frame 1, a grinding tool frame 2 and a fixture 3 arranged on the frame 1. A pair of horizontal hinge points 20A or a horizontal shaft 20B are provided on the grinding tool frame 2. A grinding member 21 whose two ends can swing vertically around it is connected to the horizontal hinge point 20A or the horizontal shaft 20B. A servo swing mechanism 4 is arranged above the frame 1, and the output end of the servo swing mechanism 4 is movably connected to a swing end 21A on one side of the grinding member 21. The grinding member 21 is composed of a grinding belt pulley 210 and a drive motor 211 for driving the grinding belt pulley 210 to rotate;

[0022] The fixture 3 is arranged on an X-Y plane moving mechanism 5. The X-Y plane moving mechanism 5 is composed of an X-axis moving mechanism 50 fixed on the frame 1 and a Y-axis moving mechanism 51 arranged on the moving end of the X-axis moving mechanism 50. The fixture 3 includes a fixture seat 30 fixedly connected to the moving end of the Y-axis moving mechanism 51 and a clamping part 31 arranged on the fixture seat 30. The grinding belt pulley 210 is located above the fixture 3.

[0023] Generally speaking, compared with existing complex equipment, the overall structure of the present utility model is relatively simple. Except for the common frame 1, mold holder 2 and fixture 3, no excessive structures are added. Instead, an X-Y plane moving mechanism 5 that drives the fixture 3 to perform horizontal displacement in the X-Y plane and cooperates with the mold holder 2 to polish the workpiece, and a servo swing mechanism 4 that drives the mold holder 2 to swing up and down so that the polishing member 21 on the mold holder 2 can grind the surface of the casting from top to bottom form additional structures. There is no other actuator for realizing workpiece displacement or processing. The present utility model has a clear design purpose compared with existing equipment, that is, to batch process the planar remaining gates of castings efficiently and reasonably within the range of reasonable costs.

[0024] When general small and medium-sized production enterprises process such gate traces, since generally not too many gates are left, the workers pick and hold each one by hand to the grinding wheel of the grinding machine for grinding. After visually inspecting and touching to judge that the gate is ground clean, the next casting gate is processed. Usually, only one casting gate can be processed at a time in this way. Some skilled workers may hold 2 or 3 workpieces in their hands for grinding at a time, doubling the efficiency, but this requires a high level of skill from the workers, and not the entire work team can achieve similar work efficiency.

[0025] In the present utility model, the casting can place the side with the gate facing up, be placed side by side in a container for accommodating the casting workpiece, and then be clamped and fixed by the clamping part 31 of the fixture 3. At this time, the X-Y plane moving mechanism 5 drives the fixture 3 to move relative to the polishing pulley 210 of the polishing member 21 to realize the grinding operation. Further, when the number of clamped casting workpieces is greater than the simultaneous processing capacity of the polishing pulley 210, the castings to be ground can be switched. The servo swing mechanism 4 can drive the polishing member 21 to swing up and down around a pair of horizontal hinge points 20A or a horizontal axis 20B through the connected swing end 21A, so as to realize the up and down movement of the polishing member 21, making the gate be ground out from top to bottom, and then the required grinding purpose can be achieved. Compared with the conventional lifting motor structure, such a lifting structure is obviously simpler. Considering that the grinding of the gate generally does not have a large stroke (≤5 mm), the circular motion and linear motion within a very small arc length range are approximate. Therefore, in the case of small-range up and down swing, the action effect of the servo swing mechanism 4 can be regarded as the same as that of the lifting motor structure with linear up and down movement.

[0026] In addition, the utility model does not need to be provided with additional structures other than the power supply and conventional control structures. In necessary cases, a safety protection structure or a sensor structure can be provided. However, due to the particularity of the grinding operation, more mechanical structures are not required. Therefore, overall, the utility model better controls the manufacturing cost, has a lower maintenance difficulty, and a lower operation complexity. General operators can well realize the continuous operation of the equipment. Therefore, it is very suitable for small and medium-sized production enterprises to process the remaining flat gate of castings.

[0027] Among them, although not specifically pointed out in the utility model, the X-Y plane moving mechanism 5, the X-axis moving mechanism 50, and the Y-axis moving mechanism 51 involved in the utility model are the same as the linear servo drive structures in the prior art and achieve the same or similar effects. Therefore, those skilled in the art can appropriately select reasonable similar structures according to the resource situation to achieve the same or similar technical effects as the X-Y plane moving mechanism 5, the X-axis moving mechanism 50, and the Y-axis moving mechanism 51 of the utility model, and ultimately obtain quite similar results.

[0028] In one of the preferred embodiments of the utility model, the servo swing mechanism 4 is composed of a servo motor 40, a telescopic seat 41 integrally connected to the servo motor 40, and a telescopic connecting rod 42 disposed in the telescopic seat 41 and linearly moving along the telescopic seat 41 and drivingly connected to the output end of the servo motor 40. The movable end of the telescopic connecting rod 42 is hinged to a swing end 21A on one side of the grinding member 21. The servo motor 40 and the telescopic seat 41 are horizontally hinged to the frame 1. Specifically, in the utility model, in order to achieve a simple structure and for the processing environment involved in the utility model, the servo swing mechanism 4 is designed such that on the premise that the telescopic connecting rod 42 performs linear reciprocating motion, in order to adapt to the swing motion of the grinding member 21, the servo motor 40 and the telescopic seat 41 are hinged to the frame 1 so that the telescopic connecting rod 42 can also adaptively swing around an axis when performing a linear motion, thereby meeting the grinding action requirements of the grinding member 21. The structure is relatively simple but the transmission is reliable.

[0029] In one of the preferred embodiments of the present invention, the grinding component 21 also includes a grinding tool seat 212 whose swing end 21A is connected to the output end of the servo swing mechanism 4 and is hinged on the horizontal hinge point 20A or the horizontal axis 20B, and a grinding shaft 213 hinged on the grinding tool seat 212. The grinding pulley 210 is coaxially connected to the grinding shaft 213. The drive motor 211 is fixed on the grinding tool seat 212. The output end of the drive motor 211 is connected to the grinding shaft 213 in a transmission manner. The grinding tool seat 212 is used to accommodate the drive motor 211 and the grinding pulley 210, which is used to rotate with the servo swing mechanism 4. The swing end 21A connected to the mechanism 4 can be relatively independent of the drive motor 211 structure, which is beneficial to the assembly of the overall structure. The horizontal hinge point 20A means that a connecting axis is not necessarily set between the hinge points, and the horizontal axis 20B means that a shaft with more reliable structural strength is used to support the swing of the grinder seat 212, which can be selected according to actual needs. The setting of the grinding axis 213 facilitates the setting of the grinding pulley 210 at a more reasonable position relative to the drive motor 211, which is beneficial for the swingable grinding component 21 to maintain a better mechanical balance. The refinement of the mechanical action helps to improve the grinding accuracy.

[0030] As a further preference of the previous embodiment, the grinding component 21 also includes a pulley arm 214, one end of the pulley arm 214 is movably connected to the grinding pulley 210 and the other end is connected to the driven pulley 215, and a circle of grinding belt 216 is sleeved between the grinding pulley 210 and the driven pulley 215. Under the above method, the grinding structure can be selected between the grinding wheel and the grinding belt, and the setting of the overall structure can also be more diversified, which is helpful for the factory to adapt the structure according to the actual processing environment.

[0031] As a further preference of the previous embodiment, the surface of the grinding pulley 210 is provided with helical meshing teeth 210A, and the grinding belt 216 is provided with a meshing surface meshing with the grinding pulley 210. This structure can improve the transmission stability of the grinding belt 216 and ensure a good grinding effect.

[0032] As a further preference of the previous embodiment, the swing end 21A of the mold seat 212 connected to the output end of the servo swing mechanism 4 is provided with an optical axis 217 parallel to the axial direction of the horizontal hinge point 20A or the horizontal axis 20B, and the output end of the servo swing mechanism 4 is sleeved on the optical axis 217. It can be seen from the accompanying drawings that the setting of the optical axis 217 facilitates the servo swing mechanism 4 to more efficiently drive the mold seat 212 to swing up and down without hindrance during telescopic movement, and the transmission efficiency is excellent, so that the mold can obtain action efficiency similar to that on the linear servo lifting mechanism.

[0033] One of the preferred embodiments of the present utility model, the clamping part 31 is a pneumatic fixture, and the air circuit of the clamping part 31 is connected to a servo air source. This setting is a conventional operation, which is beneficial for those skilled in the art to set up a simpler, more reliable and easier-to-operate clamping part 31 for clamping casting workpieces or workpiece holders.

[0034] One of the preferred embodiments of the present utility model, the telescopic connecting rod 42 is perpendicular to the axial direction of the horizontal hinge point 20A or the horizontal shaft 20B, the axial direction of the output end of the driving motor 211, and the axial direction of the grinding belt pulley 210. Specifically, the telescopic connecting rod 42 is perpendicular to the axial direction of the horizontal hinge point 20A or the horizontal shaft 20B, the telescopic connecting rod 42 is perpendicular to the axial direction of the output end of the driving motor 211, and the telescopic connecting rod 42 is perpendicular to the axial direction of the grinding belt pulley 210. The above setting of perpendicular operation can ensure that the swinging and lifting action of the servo swinging mechanism 4 can act on the workpiece surface in the most efficient form, realizing the grinding action in the tangential state, and ensuring that when the equipment grinds the sprue on the workpiece surface, the grinding efficiency and grinding effect of any workpiece on the fixture 3 are the same, which is beneficial to the quality assurance and processing efficiency in the batch processing state.

[0035] In summary, the present utility model has made a reasonable structural design for the sprue on the casting plane, so that in small and medium-sized enterprises with relatively strict cost control and in need of batch processing of sprues, the operators can obtain processing equipment with extremely low operation difficulty and good processing effects. As long as the workers have basic processing knowledge, they can achieve almost the same high processing effects. And the overall structural complexity of the equipment is completely within the reasonable affordability range of small and medium-sized production enterprises, with low manufacturing and maintenance costs. Therefore, compared with the existing complex equipment or manual processing methods, the present utility model has good promotion and application value.

[0036] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A casting surface nozzle grinding machine, comprising a frame and a grinding tool frame and a clamp arranged on the frame, characterized in that: The grinding tool frame is provided with a pair of horizontal hinge points or a horizontal axis, and the horizontal hinge points or the horizontal axis are connected with a grinding component whose two ends can swing vertically around them. A servo swing mechanism is provided on the frame, and the output end of the servo swing mechanism is movably connected to one side swing end of the grinding component. The grinding component is composed of a grinding belt wheel and a driving motor for driving the grinding belt wheel to rotate; The fixture is arranged on an XY plane moving mechanism, and the XY plane moving mechanism is composed of an X-axis moving mechanism fixed on a frame and a Y-axis moving mechanism arranged on a moving end of the X-axis moving mechanism. The fixture includes a fixture seat fixedly connected to the moving end of the Y-axis moving mechanism and a clamping part arranged on the fixture seat. The grinding pulley is located above the fixture.

2. The casting surface nozzle grinding machine according to claim 1, characterized in that: The servo swing mechanism consists of a servo motor, a telescopic seat integrally connected to the servo motor, and a telescopic connecting rod arranged in the telescopic seat and linearly moving along the telescopic seat and transmission-connected to the output end of the servo motor. The movable end of the telescopic connecting rod is hinged to a swing end on one side of the grinding component, and the servo motor and the telescopic seat are horizontally hinged on the frame.

3. The casting surface nozzle grinding machine according to claim 1, characterized in that: The grinding component also includes a grinding tool seat having a swing end on one side connected to the output end of the servo swing mechanism and hinged on a horizontal hinge point or a horizontal axis, and a grinding shaft hinged on the grinding tool seat, the grinding pulley is coaxially connected to the grinding shaft, the driving motor is fixed on the grinding tool seat, and the output end of the driving motor is transmission-connected to the grinding shaft.

4. The casting surface nozzle grinding machine according to claim 1 or 3, characterized in that: The grinding component also includes a pulley arm, one end of the pulley arm is movably connected to a grinding pulley and the other end is connected to a driven pulley, and a circle of grinding belt is sleeved between the grinding pulley and the driven pulley.

5. The casting surface nozzle grinding machine according to claim 4, characterized in that: The surface of the grinding belt wheel is provided with helical meshing teeth, and the grinding belt is provided with a meshing surface meshing with the grinding belt wheel.

6. The casting surface nozzle grinding machine according to claim 3, characterized in that: The swing end of the mold seat connected to the output end of the servo swing mechanism is provided with an optical axis parallel to the horizontal hinge point or the axial direction of the horizontal axis, and the output end of the servo swing mechanism is sleeved on the optical axis.

7. The casting surface nozzle grinding machine according to claim 1, characterized in that: The clamping part is a pneumatic clamp, and the air circuit of the clamping part is connected to a servo air source.

8. The casting surface nozzle grinding machine according to claim 2, characterized in that: The telescopic connecting rod is perpendicular to the axial direction of the horizontal hinge point or the horizontal axis, the axial direction of the output end of the driving motor, and the axial direction of the grinding pulley.

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