Cylinder body casting polishing device and polishing process thereof

Abstract

The invention relates to the field of grinding machinery, and discloses a cylinder body casting grinding device and a grinding process thereof.The device comprises a frame body and a controller, a three-jaw chuck is arranged on the frame body, and a to-be-ground cylinder body is clamped through the three-jaw chuck; a grinding mechanism is further arranged on one side of the frame body and comprises a hydraulic telescopic cylinder and a driving part, the hydraulic telescopic cylinder is fixedly installed on the frame body, the driving part is fixedly installed at the end of the hydraulic telescopic cylinder, and the output end of the driving part is in transmission connection with a grinding shaft; a grinding shell is fixedly arranged at the end of the grinding shaft, multiple stages of grinding wheels are arranged in the grinding shell, an alternating assembly is further arranged in the grinding shell, and the alternating assembly is used for pushing the different stages of grinding wheels to sequentially stretch out of the grinding shell to conduct the grinding action of the cylinder body. By means of the mechanism, real-time replacement of different levels of grinding wheels in the working state in the cylinder body is achieved, and the grinding efficiency is higher.

Description

Technical Field

[0001] The invention relates to the field of grinding machinery, and in particular to a cylinder casting grinding device and a grinding process thereof. Background Art

[0002] The cylinder body is one of the important components of pump devices. For a cast cylinder body, its inner and outer surfaces are relatively rough, so it needs to be polished before it can be put into use.

[0003] Although the existing cylinder casting grinding device can achieve high-precision grinding, there are still some problems in the grinding process. For example, for the cylinder surface with large roughness, it is unrealistic to grind it in place at one time. Generally, it is necessary to grind from coarse to fine multiple mesh levels to achieve the goal of gradual progress in order to achieve the final grinding accuracy.

[0004] However, in this step-by-step process, since different grades of grinding wheels or grinding belts need to be replaced many times, the grinding spindle needs to be moved frequently. For example, when grinding the inner surface of the cylinder body, each replacement of the grinding wheel requires the process of exiting, replacing and re-entering. Each exit requires re-calibration of the center to prevent eccentric wear caused by misalignment of the central axis. There are many risks in the actual operation process, so certain improvements are needed to overcome the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a cylinder casting grinding device and a grinding process thereof to solve the above technical problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A cylinder casting grinding device comprises a frame and a controller, wherein a three-jaw chuck is arranged on the frame, and a cylinder to be ground is clamped by the three-jaw chuck;

[0008] A grinding mechanism is also provided on one side of the frame, and the grinding mechanism comprises:

[0009] A hydraulic telescopic cylinder and a driving member, wherein the hydraulic telescopic cylinder is fixedly mounted on the frame, the driving member is fixedly mounted on the end of the hydraulic telescopic cylinder, the output end of the driving member is transmission-connected with a grinding shaft, a grinding shell is fixedly arranged at the end of the grinding shaft, a multi-stage grinding wheel is arranged in the grinding shell, an alternating component is also arranged in the grinding shell, and the alternating component is used to push the grinding wheels of different stages to extend out of the grinding shell in sequence to perform the grinding action of the cylinder body.

[0010] Further, the alternating component includes a push rod disposed within the grinding housing. The push rod is electrically connected to the controller. The front end of the push rod can reciprocally expand and contract radially along the grinding axis within the grinding housing. A plurality of push plates are slidably disposed within the grinding housing, and each push plate corresponds to each stage of grinding wheel respectively.

[0011] A rotating shaft is fixed to the rod body of the push rod. The rotating shaft is rotatably installed at the center of the grinding housing. The rotating shaft is in transmission connection with a driving motor, and the driving motor is fixedly installed at the end of the grinding axis. The push rod pushes different push plates through elongation, and the push plates push the corresponding-stage grinding wheels out of the grinding housing, realizing the orderly switching and grinding between multiple-stage grinding wheels.

[0012] Further, discharge ports are provided at the positions of the grinding housing corresponding to each stage of grinding wheel. The size of the discharge port is adapted to the outer diameter of the corresponding grinding wheel. When each stage of grinding wheel is pushed out of the grinding housing by the alternating component, the grinding wheel can cover the discharge port.

[0013] Further, a selection connection component is provided between the plurality of push plates. The selection connection component is used to connect when needed, so that two adjacent push plates form an integral body.

[0014] Further, the selection connection component includes a connection slot part and a connection plug provided on the opposite sides of adjacent push plates. The connection slot part is a rectangular groove body, which is opened at the edge of one push plate along the width direction of the push plate. The connection plug is a rectangular block structure adapted to the connection slot part, and the connection plug is installed at the corresponding position of the other push plate. An electromagnet is provided on each connection slot part, and a magnetic adsorption sheet cooperating with the electromagnet is provided within the connection plug. The electromagnet is electrically connected to the controller.

[0015] When it is necessary for two adjacent push plates to form an integral body, the controller controls the electromagnet to be energized, so that the connection plug is adsorbed within the connection slot part, realizing the connection between two adjacent push plates.

[0016] Further, a hinge seat is provided on the push plate. An oscillating arm is hinged to the hinge seat through a torsion spring. The oscillating arm is arranged in an arc structure, and the end of the oscillating arm is fixedly connected to the connection plug. An angle sensor is provided on the push plate. When the push rod rotates to a set angle position, which corresponds to the situation where two adjacent grinding wheels need to work simultaneously, the angle sensor transmits a signal to the controller. The controller controls the electromagnet on the corresponding push plate to be energized, so that two adjacent push plates are connected through the connection slot part and the connection plug to form an integral body. At this time, when the push rod continues to elongate, it can simultaneously push two connected push plates, pushing two adjacent grinding wheels out of the grinding housing simultaneously for grinding work.

[0017] Further, a reset spring is also provided inside the grinding shell. One end of the reset spring is connected to the push plate, and the other end is connected to the inner wall of the grinding shell. When the push rod contracts in the reverse direction and the angle sensor detects that the push rod has deviated from the set angle position, the controller controls the electromagnet to power off, and the connecting plug and the connecting slot are separated. Under the action of the reset spring, the push plate returns to the initial position, preparing for the next grinding wheel switching.

[0018] Further, a dust suction mechanism is also provided on the frame. The dust suction mechanism includes a dust suction hood, a dust suction pipe, and a dust suction fan. The dust suction hood is arranged on one side of the three-jaw chuck, and the opening of the dust suction hood faces the working area of the grinding wheel. One end of the dust suction pipe is communicated with the dust suction hood, and the other end is communicated with the air inlet of the dust suction fan. The dust suction fan is fixedly installed on the frame and is electrically connected to the controller.

[0019] A grinding process for cylinder block castings, which includes the following steps:

[0020] Step 1: Place the cylinder block to be ground on the three-jaw chuck, and control the three-jaw chuck to tighten through the controller to firmly clamp the cylinder block.

[0021] Step 2: According to the material and grinding requirements of the cylinder block, set the grinding sequence and time parameters of multiple-stage grinding wheels through the controller.

[0022] Step 3: Start the hydraulic telescopic cylinder to make the driving part and the grinding shell approach the cylinder block until the grinding wheel enters the cylinder block.

[0023] Step 4: Start the driving part to drive the grinding shaft to rotate, and at the same time start the alternating component. Control the rotation and telescopic movement of the push rod through the controller, and sequentially push different-stage grinding wheels out of the grinding shell for grinding.

[0024] Step 5: When two adjacent grinding wheels need to work simultaneously, the controller controls the electromagnet to be powered on according to the signal of the angle sensor, so that two adjacent push plates are connected to form a whole, and the push rod continues to extend to push two adjacent grinding wheels out for grinding at the same time.

[0025] Step 6: During the grinding process, start the dust suction mechanism to timely clean up the debris and dust generated by grinding.

[0026] Step 7: After grinding is completed, the controller controls the hydraulic telescopic cylinder to contract, so that the grinding shell moves away from the cylinder block, and at the same time controls the three-jaw chuck to loosen, and take out the ground cylinder block.

[0027] The beneficial effects of the present invention:

[0028] (1) On the one hand, the multi-stage grinding wheel cooperates with the alternating component, which can quickly switch the grinding wheel according to different grinding stages of the cylinder block, reducing the time for replacing the grinding tool and improving the overall grinding efficiency. From rough grinding to fine grinding, there is no need for manual replacement of the grinding equipment. The automatic switching of the grinding wheel can be directly achieved through the alternating component. On the other hand, when the connecting component is selected to connect two adjacent push plates and make two adjacent grinding wheels work simultaneously, the grinding area per unit time can be significantly increased. For the grinding of the large-area surface of the cylinder block, the grinding duration can be greatly shortened and the production efficiency can be improved.

[0029] (2) The device precisely controls each component through the controller. For example, the linkage between the angle sensor and the controller can accurately control the switching timing of the grinding wheel and the timing when two adjacent grinding wheels work simultaneously, ensuring the use of the appropriate grinding wheel combination at the appropriate grinding stage, and greatly improving the grinding accuracy. Whether it is grinding the inner diameter, outer diameter, or complex internal structure of the cylinder block, it can ensure that the dimensional accuracy and surface roughness after grinding meet strict process requirements, reducing the product defect rate caused by insufficient grinding accuracy. Brief Description of the Drawings

[0030] The present invention will be further described below in conjunction with the drawings.

[0031] Figure 1 is the three-dimensional schematic diagram of the present invention;

[0032] Figure 2 is Figure 1 the three-dimensional schematic diagram from another angle;

[0033] Figure 3 is the three-dimensional schematic diagram of the grinding mechanism in the present invention;

[0034] Figure 4 is Figure 3 the explosion schematic diagram of;

[0035] Figure 5 is Figure 3 the top view of;

[0036] Figure 6 is Figure 5 the sectional view taken along line A-A in;

[0037] Figure 7 is Figure 6 the enlarged view at B in.

[0038] Description of the drawings: 1. Frame; 2. Three-jaw chuck; 3. Grinding mechanism; 31. Hydraulic telescopic cylinder; 32. Driving part; 33. Grinding shaft; 34. Grinding shell; 35. Grinding wheel; 36. Alternating component; 361. Push rod; 362. Push plate; 363. Rotating shaft; 364. Driving motor; 37. Discharge port; 38. Selective connection component; 381. Connection slot part; 382. Connection plug; 383. Electromagnet; 384. Magnetic adsorption sheet; 385. Swing arm; 39. Return spring; 4. Dust suction mechanism; 41. Dust suction hood; 42. Dust suction pipe; 43. Dust suction fan. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1-7 As shown in the figure, the present invention is a grinding device for cylinder castings, including a frame 1 and a controller. A three-jaw chuck 2 is arranged on the frame 1, and the cylinder to be ground is clamped by the three-jaw chuck 2.

[0041] A grinding mechanism 3 is further arranged on one side of the frame 1. The grinding mechanism 3 includes:

[0042] A hydraulic telescopic cylinder 31 and a driving part 32. The hydraulic telescopic cylinder 31 is fixedly installed on the frame 1. The driving part 32 is fixedly installed at the end of the hydraulic telescopic cylinder 31. The output end of the driving part 32 is in transmission connection with a grinding shaft 33. A grinding shell 34 is fixedly arranged at the end of the grinding shaft 33. A multi-stage grinding wheel 35 is arranged in the grinding shell 34. An alternating component 36 is further arranged in the grinding shell 34. The alternating component 36 is used to push different-stage grinding wheels 35 to sequentially extend out of the grinding shell 34 for grinding the cylinder.

[0043] In the present invention, first place the cylinder block to be polished on the three-jaw chuck 2, and operate the three-jaw chuck 2 to clamp the cylinder block. Then, the controller controls the hydraulic telescopic cylinder 31 to extend, driving the driving member 32 and the polishing mechanism 3 to move towards the cylinder block. Start the driving member 32, and the output end of the driving member 32 drives the polishing shaft 33 to rotate, thereby causing the polishing shell 34 and the multi-stage polishing wheels 35 inside to rotate, and preparing to start polishing. On the one hand, the three-jaw chuck 2 can firmly hold the cylinder block, ensuring that the cylinder block does not displace during the polishing process, thereby ensuring the accuracy of the polishing position. Because if the cylinder block shakes during polishing, it will cause deviation of the polishing position and affect the polishing quality. On the other hand, the hydraulic telescopic cylinder 31 can flexibly adjust the positions of the driving member 32 and the polishing mechanism 3, facilitating the polishing of cylinder blocks with different positions and sizes; it can accurately control the distance between the polishing mechanism 3 and the cylinder block according to actual needs, enabling the polishing wheel 35 to better contact the surface of the cylinder block for polishing. At the same time, the setting of the alternating component 36 can quickly realize the replacement of different-level polishing wheels 35, shorten the replacement time of the existing polishing device, improve the polishing efficiency, and reduce the risk of having to re-align the center every time it is withdrawn.

[0044] The alternating component 36 includes a push rod 361 disposed in the polishing shell 34. The push rod 361 is electrically connected to the controller. The front end of the push rod 361 can perform reciprocating telescopic movement along the radial direction of the polishing shaft 33 inside the polishing shell 34. A plurality of push plates 362 are slidably disposed in the polishing shell 34, and each push plate 362 corresponds to each stage of the polishing wheel 35.

[0045] A rotating shaft 363 is fixed to the rod body of the push rod 361. The rotating shaft 363 is rotatably installed at the center of the polishing shell 34. The rotating shaft 363 is in transmission connection with a driving motor 364. The driving motor 364 is fixedly installed at the end of the polishing shaft 33. The push rod 361 pushes different push plates 362 through elongation, and the push plates 362 push the corresponding-stage polishing wheels 35 out of the polishing shell 34, realizing the orderly switching and polishing between the multi-stage polishing wheels 35.

[0046] In the present invention, the controller controls the driving motor 364 to rotate. The driving motor 364 drives the rotating shaft 363 to rotate, and further causes the push rod 361 fixed on the rotating shaft 363 to rotate. When the push rod 361 rotates to a suitable position, the controller controls the front end of the push rod 361 to extend radially along the polishing shaft 33. The push rod 361 pushes the corresponding push plate 362, and the push plate 362 then pushes the polishing wheel 35 of the corresponding stage out of the discharge port 37 of the polishing shell 34, realizing the switching of the polishing wheel 35. On the one hand, through the rotation and telescoping of the push rod 361, the polishing wheel 35 to be used can be accurately selected, realizing the orderly switching between multiple-stage polishing wheels 35. The polishing wheels 35 of different levels can be used for different polishing stages of the cylinder block, such as rough grinding, fine grinding, etc., thereby improving the polishing efficiency and quality. On the other hand, this structural design makes the switching of the polishing wheel 35 more flexible and automated, reduces manual intervention, and improves the stability and consistency of production.

[0047] The polishing shell 34 is provided with a discharge port 37 at the position corresponding to each stage of the polishing wheel 35. The size of the discharge port 37 is adapted to the outer diameter of the corresponding polishing wheel 35. When each stage of the polishing wheel 35 is pushed out of the polishing shell 34 by the alternating component 36, the polishing wheel 35 can cover the discharge port 37. When the alternating component 36 pushes the polishing wheel 35 out of the polishing shell 34, since the size of the discharge port 37 is adapted to the outer diameter of the polishing wheel 35, the polishing wheel 35 can just cover the discharge port 37. On the one hand, it avoids the splashing of debris generated during the polishing process into the area of other polishing wheels 35. Because if the debris enters the area of other polishing wheels 35, it may affect the normal operation of other polishing wheels 35, resulting in a deterioration of the polishing effect and even damage to the polishing wheels 35. On the other hand, it ensures the relative independence and cleanliness of the working environment of each polishing wheel 35, which is beneficial to improving the polishing quality and the service life of the polishing wheels 35.

[0048] A selection connection component 38 is arranged between multiple push plates 362. The selection connection component 38 is used to connect when needed, so that two adjacent push plates 362 form an integral body.

[0049] The selection connection component 38 includes a connection slot part 381 and a connection plug 382 arranged on the opposite sides of adjacent push plates 362. The connection slot part 381 is a rectangular groove body, which is opened at the edge of one push plate 362 along the width direction of the push plate 362. The connection plug 382 is a rectangular block structure adapted to the connection slot part 381, and the connection plug 382 is installed at the corresponding position of the other push plate 362. An electromagnet 383 is arranged on each connection slot part 381, and a magnetic adsorption sheet 384 matched with the electromagnet 383 is arranged in the connection plug 382. The electromagnet 383 is electrically connected to the controller.

[0050] When it is necessary to form an integral body with two adjacent push plates 362, the controller controls the electromagnet 383 to be energized, so that the connecting plug 382 is adsorbed in the connecting slot portion 381, realizing the connection between two adjacent push plates 362.

[0051] A hinge seat is arranged on the push plate 362. An oscillating arm 385 is hinged to the hinge seat through a torsion spring. The oscillating arm 385 is arranged in an arc structure. The end of the oscillating arm 385 is fixedly connected with the connecting plug 382. An angle sensor is arranged on the push plate 362. When the push rod 361 rotates to a set angle position, which corresponds to the situation where two adjacent grinding wheels 35 need to work simultaneously, the angle sensor transmits a signal to the controller. The controller controls the electromagnet 383 on the corresponding push plate 362 to be energized, so that two adjacent push plates 362 are connected through the connecting slot portion 381 and the connecting plug 382 to form an integral body. At this time, the push rod 361 continues to extend, and can simultaneously push two connected push plates 362, and push two adjacent grinding wheels 35 out of the grinding shell 34 at the same time for grinding work.

[0052] A return spring 39 is further arranged in the grinding shell 34. One end of the return spring 39 is connected to the push plate 362, and the other end is connected to the inner wall of the grinding shell 34. When the push rod 361 contracts in the reverse direction and the angle sensor detects that the push rod 361 has deviated from the set angle position, the controller controls the electromagnet 383 to be powered off, and the connecting plug 382 is separated from the connecting slot. Under the action of the return spring 39, the push plate 362 returns to the initial position to prepare for the next switching of the grinding wheel 35.

[0053] In the present invention, during the operation of the cylinder block casting grinding device, when it is necessary to perform grinding operation on the cylinder block, the push rod 361 rotates under the action of the rotating shaft 363 driven by the driving motor 364. During the rotation of the push rod 361, the angle sensor monitors its angle in real time. When the push rod 361 rotates to the set angle position, this set angle corresponds to the situation where two adjacent grinding wheels 35 need to work simultaneously. For example, the set angle position is the point in the middle of two push plates 362. At this time, the push rod 361 first extends to a certain distance, and then contacts the arc-shaped oscillating arm 385, thereby forcibly pushing the oscillating arm 385 to rotate against the torsion spring, driving the connecting plug 382 to cooperate with the connecting slot. At the same time, when the electromagnet 383 is energized, a strong magnetic adsorption magnetic adsorption sheet 384 is generated, realizing the stable connection between two adjacent push plates 362, and connecting two adjacent push plates 362 to form an integral body. After that, the push rod 361 continues to extend. Since the adjacent push plates 362 are already connected into an integral body, the push rod 361 can simultaneously push these two connected push plates 362, and then push two adjacent grinding wheels 35 out of the discharge port 37 of the grinding shell 34 at the same time to perform grinding work on the cylinder block.

[0054] When the grinding work is completed, the push rod 361 retracts in the reverse direction and continues to rotate. When the angle sensor detects that the push rod 361 has deviated from the set angular position, it transmits a signal to the controller again. The controller controls the electromagnet 383 to cut off the power supply. The electromagnet 383 loses its magnetic force and drives the swing arm 385 and the connecting plug 382 to separate from the connecting slot under the action of the torsion spring. At the same time, the return spring 39 connected between the push plate 362 and the inner wall of the grinding shell 34 comes into play and pulls the push plate 362 back to the initial position, preparing for the next replacement of the grinding wheel 35.

[0055] On the one hand, two adjacent grinding wheels 35 can work simultaneously, enabling faster and more comprehensive grinding of the cylinder block surface. For example, when grinding the inner surface of a relatively large area of the cylinder block, the simultaneous action of the two grinding wheels 35 can reduce the grinding time and improve production efficiency.

[0056] On the other hand, different grinding wheels 35 can be combined according to their characteristics. For example, a rough grinding wheel 35 and a fine grinding wheel 35 work simultaneously. First, the rough grinding wheel 35 removes most of the surplus, and then the fine grinding wheel 35 performs fine grinding. This can better ensure the grinding quality and make the surface of the cylinder block meet higher surface finish and precision requirements. It should be noted that the grinding wheels 35 are gradually distributed from rough to fine in a clockwise or counterclockwise direction. The return spring 39 ensures that the push plate 362 can accurately return to the initial position after each grinding cycle, enabling the states of all components of the device to return to the same, providing a stable basis for the next grinding operation. At the same time, the connection method of the electromagnet 383 and the magnetic adsorption sheet 384 ensures the firm connection between the push plates 362 and will not loosen easily during the grinding process, ensuring the normal progress of the grinding work.

[0057] The angle sensor monitors the rotation angle of the push rod 361 in real time. Once it detects that the push rod 361 reaches the set angle, it immediately transmits a signal to the controller. The controller responds quickly according to the received signal, controls the energization or de-energization of the electromagnet 383, and realizes the connection and separation of the push plate 362. This linkage ensures the automation and precise control of the combined operation of the grinding wheels 35. Moreover, when the controller controls the electromagnet 383 to be energized, the electromagnet 383 generates a magnetic force to attract the magnetic adsorption sheet 384 in the connection plug 382, so that the connection plug 382 is tightly adsorbed in the connection slot part 381, completing the connection of adjacent push plates 362. When the electromagnet 383 is de-energized, the magnetic force disappears, the connection plug 382 is separated from the connection slot, and the push plate 362 returns to the independent state. The linkage realizes the rapid switching between the connection and separation of the push plates 362 to adapt to different grinding requirements. The rotation and telescoping of the push rod 361 directly affect the movement of the push plate 362. When the push rod 361 rotates to the appropriate position and extends, it pushes the push plate 362, and the push plate 362 then pushes the grinding wheel 35 out of the grinding housing 34 for grinding work. When the push rod 361 retracts in the reverse direction, the push plate 362 returns to the initial position under the action of the return spring 39, and the grinding wheel 35 also returns to the grinding housing 34. This linkage action enables the grinding wheel 35 to be switched and operated in accordance with the preset sequence and manner, ensuring the orderly progress of the grinding process.

[0058] A dust collection mechanism 4 is further provided on the frame body 1. The dust collection mechanism 4 includes a dust collection hood 41, a dust collection pipe 42, and a dust collection fan 43. The dust collection hood 41 is arranged on one side of the three-jaw chuck 2, and the opening of the dust collection hood 41 faces the working area of the grinding wheel 35. One end of the dust collection pipe 42 is communicated with the dust collection hood 41, and the other end is communicated with the air inlet of the dust collection fan 43. The dust collection fan 43 is fixedly installed on the frame body 1 and is electrically connected to the controller.

[0059] In the present invention, when the grinding device starts to work, the controller controls the dust collection fan 43 to start. Using the negative pressure generated by the fan, the surrounding air together with debris and dust is sucked into the dust collection system. According to the principle of aerodynamics, the air carries debris and dust during the flow process and is discharged through the pipeline, thereby achieving the purpose of cleaning. On the one hand, it can effectively clean the debris and dust in the grinding area, keep the working environment clean, reduce the risk of operators inhaling dust, and ensure the physical health of operators. On the other hand, it avoids the accumulation of debris and dust in the grinding area, prevents secondary scratches on the grinding wheel 35 and the surface of the cylinder block, and improves the grinding quality.

[0060] A grinding process for cylinder block castings, the process comprising the following steps:

[0061] Step 1: Place the cylinder block to be ground on the three-jaw chuck 2, and control the three-jaw chuck 2 to tighten through the controller to firmly clamp the cylinder block.

[0062] Step 2: According to the material and grinding requirements of the cylinder block, set the grinding sequence and time parameters of the multi-stage grinding wheel 35 through the controller;

[0063] Step 3: Start the hydraulic telescopic cylinder 31 to make the driving part 32 and the grinding shell 34 approach the cylinder block until the grinding wheel 35 enters the cylinder block;

[0064] Step 4: Start the driving part 32 to drive the grinding shaft 33 to rotate. At the same time, start the alternating component 36, and control the rotation and extension of the push rod 361 through the controller, and sequentially push different stages of grinding wheels 35 out of the grinding shell 34 for grinding;

[0065] Step 5: When two adjacent grinding wheels 35 need to work simultaneously, the controller controls the electromagnet 383 to be energized according to the signal of the angle sensor, so that two adjacent push plates 362 are connected to form a whole, and the push rod 361 continues to extend to push two adjacent grinding wheels 35 out simultaneously for grinding;

[0066] Step 6: During the grinding process, start the dust suction mechanism 4 to timely clean up the debris and dust generated by grinding;

[0067] Step 7: After grinding is completed, the controller controls the hydraulic telescopic cylinder 31 to contract, so that the grinding shell 34 moves away from the cylinder block. At the same time, control the three-jaw chuck 2 to loosen and take out the ground cylinder block.

[0068] In the present invention, each component is precisely controlled by the controller. The position adjustment of the grinding mechanism 3 is realized by using the hydraulic telescopic cylinder 31. The driving part 32 provides the grinding power. The alternating component 36 and the selective connection component 38 realize the switching and combination of the grinding wheels 35. The angle sensor and the electromagnet 383 etc. realize the automatic control. The dust suction mechanism 4 uses the negative pressure principle to clean up the debris and dust. Each component works together to realize an efficient and high-quality grinding process. On the one hand, through reasonable setting of the grinding sequence and time parameters, fine grinding can be carried out according to the actual situation of the cylinder block, improving the grinding quality and efficiency. On the other hand, by using the cooperation of the alternating component 36 and the selective connection component 38, the orderly switching of the multi-stage grinding wheels 35 and the simultaneous work of adjacent grinding wheels 35 are realized, increasing the flexibility and diversity of grinding and being able to adapt to different grinding requirements. At the same time, the operation of the dust suction mechanism 4 ensures the cleanliness of the working environment and the stability of the grinding quality. The above has described a detailed description of an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A cylinder block casting grinding device, comprising a frame body and a controller. A three-jaw chuck is arranged on the frame body, and the cylinder block to be ground is clamped by the three-jaw chuck. It is characterized in that A grinding mechanism is further arranged on one side of the frame body. The grinding mechanism includes: A hydraulic telescopic cylinder and a driving member. The hydraulic telescopic cylinder is fixedly installed on the frame body, the driving member is fixedly installed at the end of the hydraulic telescopic cylinder, the output end of the driving member is in transmission connection with a grinding shaft, a grinding shell is fixedly arranged at the end of the grinding shaft, a multi-stage grinding wheel is arranged in the grinding shell, and an alternating component is further arranged in the grinding shell. The alternating component is used to push different-stage grinding wheels to sequentially extend out of the grinding shell to perform the grinding action on the cylinder block. The alternating component includes a push rod arranged in the grinding shell. The push rod is electrically connected to the controller, and the front end of the push rod can perform reciprocating telescopic movement along the radial direction of the grinding shaft in the grinding shell. A plurality of push plates are slidably arranged in the grinding shell, and each push plate corresponds to each stage of grinding wheel respectively. A rotating shaft is fixed on the rod body of the push rod. The rotating shaft is rotatably installed at the center of the grinding shell. The rotating shaft is in transmission connection with a driving motor, and the driving motor is fixedly installed at the end of the grinding shaft. The push rod pushes different push plates through elongation, and the push plates push the corresponding-stage grinding wheels out of the grinding shell, realizing the orderly switching and grinding between the multi-stage grinding wheels.

2. The cylinder block casting grinding device according to claim 1, characterized in that, A discharge port is arranged at the position corresponding to each stage of grinding wheel on the grinding shell. The size of the discharge port is adapted to the outer diameter of the corresponding grinding wheel. When each stage of grinding wheel is pushed out of the grinding shell by the alternating component, the grinding wheel can cover the discharge port.

3. The cylinder block casting grinding device according to claim 2, characterized in that, A selection connection component is arranged between a plurality of the push plates. The selection connection component is used to connect when needed, so that two adjacent push plates form an integral body.

4. The cylinder block casting grinding device according to claim 3, characterized in that, The selection connection component includes a connection slot part and a connection block arranged on the opposite sides of adjacent push plates. The connection slot part is a rectangular groove body, which is opened on the edge of one push plate along the width direction of the push plate. The connection block is a rectangular block structure adapted to the connection slot part, and the connection block is installed at the corresponding position of the other push plate. An electromagnet is arranged on each connection slot part, and a magnetic adsorption sheet matched with the electromagnet is arranged in the connection block. The electromagnet is electrically connected to the controller. When it is necessary for two adjacent push plates to form an integral body, the controller controls the electromagnet to be energized, so that the connection block is adsorbed in the connection slot part, realizing the connection between two adjacent push plates.

5. The cylinder block casting grinding device according to claim 4, characterized in that, A hinge seat is arranged on the push plate. An oscillating arm is hinged on the hinge seat through a torsion spring. The oscillating arm is arranged in an arc structure, and the end of the oscillating arm is fixedly connected with the connection block. An angle sensor is arranged on the push plate. When the push rod rotates to a set angle position, this set angle corresponds to the situation where two adjacent grinding wheels need to work simultaneously. The angle sensor transmits a signal to the controller, and the controller controls the electromagnet on the corresponding push plate to be energized, so that two adjacent push plates are connected through the connection slot part and the connection block to form an integral body. At this time, when the push rod continues to elongate, it can simultaneously push two connected push plates, and push two adjacent grinding wheels out of the grinding shell at the same time for grinding work.

6. The cylinder block casting grinding device according to claim 5, characterized in that, A reset spring is further provided inside the grinding shell. One end of the reset spring is connected to the push plate, and the other end is connected to the inner wall of the grinding shell. When the push rod contracts in the reverse direction and the angle sensor detects that the push rod has deviated from the set angular position, the controller controls the electromagnet to power off, and the connecting plug and the connecting slot are separated. Under the action of the reset spring, the push plate returns to the initial position to prepare for the next grinding wheel switching.

7. The cylinder block casting grinding device according to claim 1, characterized in that, A dust suction mechanism is further provided on the frame body. The dust suction mechanism includes a dust suction hood, a dust suction pipe and a dust suction fan. The dust suction hood is arranged on one side of the three-jaw chuck, and the opening of the dust suction hood faces the working area of the grinding wheel. One end of the dust suction pipe is communicated with the dust suction hood, and the other end is communicated with the air inlet of the dust suction fan. The dust suction fan is fixedly installed on the frame body and is electrically connected to the controller.

8. A grinding process implemented by the cylinder block casting grinding device according to claim 1, characterized in that This process includes the following steps: Step 1: Place the cylinder block to be ground on the three-jaw chuck, and control the three-jaw chuck to tighten through the controller to firmly clamp the cylinder block. Step 2: According to the material and grinding requirements of the cylinder block, set the grinding sequence and time parameters of multiple grinding wheels through the controller. Step 3: Start the hydraulic telescopic cylinder to make the driving part and the grinding shell approach the cylinder block until the grinding wheel enters the cylinder block. Step 4: Start the driving part to drive the grinding shaft to rotate, and at the same time start the alternating component. Control the rotation and extension of the push rod through the controller, and sequentially push out different-level grinding wheels outside the grinding shell for grinding. Step 5: When two adjacent grinding wheels need to work simultaneously, the controller controls the electromagnet to be powered on according to the signal of the angle sensor, so that two adjacent push plates are connected to form a whole, and the push rod continues to extend to push out two adjacent grinding wheels for grinding simultaneously. Step 6: During the grinding process, start the dust suction mechanism to timely clean up the debris and dust generated by grinding. Step 7: After the grinding is completed, the controller controls the hydraulic telescopic cylinder to contract to make the grinding shell away from the cylinder block, and at the same time controls the three-jaw chuck to loosen to take out the ground cylinder block.

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