A casting burr polishing apparatus

Abstract

The application discloses a kind of casting burr polishing equipment, including rack, placing rack, open-close board, open-close drive device, inner cavity polishing component, telescopic component and rotation control component, placing rack and telescopic component are fixed in rack, open-close board is installed on placing rack by open-close drive device overturning, telescopic component controls inner cavity polishing component to enter and exit placing rack, rotation control component controls inner cavity polishing component rotation, open-close board bottom surface floating installation has polishing plate, inner cavity polishing component includes telescopic polishing head and telescopic control unit, when using, tubular casting is placed in the placing groove of placing rack, open-close drive device controls open-close board to press down fixed casting, rotation control component and telescopic component make polishing head rotate and extend into inner cavity polishing of casting, after polishing head is tightly pressed to inner cavity, casting rotates, outer wall is polished by polishing plate, after completion, each component resets, removes casting, the present equipment can polish inner wall and outer wall of casting simultaneously, improve efficiency, guarantee polishing quality.

Description

Technical Field

[0001] This invention relates to the field of casting processing equipment technology, specifically to a casting burr removal and polishing device. Background Technology

[0002] During the casting process, due to the characteristics of the casting technology, burrs often form on the surface of castings, especially on the inner and outer walls of tubular castings. These burrs not only affect the appearance quality of the castings but may also cause problems during subsequent assembly or use, therefore, grinding is necessary.

[0003] Currently, there are various casting grinding technologies and equipment available on the market.

[0004] For example, the patent application CN222857535U, entitled "A Device for Removing Burrs from the Surface of Castings," uses a sliding plate to drive a rotating motor and a grinding brush to move downwards into the interior of a cylindrical casting. The rotating motor then drives the grinding brush to grind the interior of the casting, which improves grinding efficiency to some extent and reduces manual operation. However, this device only grinds the inner cavity of the casting and lacks a corresponding design for grinding the outer wall, making it impossible to grind both the inner and outer walls simultaneously. Therefore, the overall grinding efficiency still needs improvement.

[0005] For example, the patent application CN116967875A, entitled "A Grinding Device for Deburring the Surface of Castings", can simultaneously grind burrs on the inner wall surface, outer wall surface and side wall surface of the casting port, which improves grinding efficiency. However, its structure is complex and its adaptability to castings of different sizes is not flexible enough. Furthermore, it has shortcomings in terms of fixing the casting and adjusting the grinding pressure during the grinding process.

[0006] In existing technologies, some equipment cannot simultaneously and efficiently grind the inner cavity and outer wall of castings. During the grinding process, there are also problems such as the casting not being firmly fixed and the grinding pressure not being able to be precisely adjusted, resulting in inconsistent grinding quality and making it difficult to meet the ever-increasing production demands.

[0007] Therefore, developing a burr grinding device that can overcome the above problems and achieve high efficiency, precision and applicability to a variety of castings is of great practical significance. Summary of the Invention

[0008] The present invention aims to solve one of the technical problems existing in the prior art.

[0009] This application provides a casting burr grinding device, including a frame, a placement rack, an opening and closing plate, an opening and closing drive device, an inner cavity grinding assembly, a telescopic assembly, and a rotation control assembly. The placement rack and the telescopic assembly are fixed on the frame. The opening and closing plate is flipped and mounted on the placement rack by the opening and closing drive device. The telescopic assembly is used to control the inner cavity grinding assembly to enter and exit the placement rack. The rotation control assembly is used to control the rotation of the inner cavity grinding assembly. A grinding plate is floatingly mounted on the bottom surface of the opening and closing plate. The inner cavity grinding assembly includes a telescopic grinding head and a telescopic control unit for controlling the extension and retraction of the grinding head.

[0010] The opening and closing drive device includes a semi-circular cavity, a semi-circular sliding plate, a cylinder, a guide groove, and a guide slider. The semi-circular cavity is disposed in the placement frame and is open at the top. The semi-circular sliding plate is slidably installed in the semi-circular cavity, with its top hinged to the middle of the opening and closing plate and its bottom hinged to the outer end of the piston rod of the cylinder. The guide groove is horizontally disposed at the top of the placement frame, and the guide slider is fixed to the end of the side wall of the opening and closing plate and slides in cooperation with the guide groove.

[0011] The placement rack has a notch on the side facing the cylinder one. The outer end of the piston rod of the cylinder one is connected to the lower end of the semi-circular slide plate through a connecting rod, and the connecting rod is slidably installed in the notch.

[0012] The telescopic control unit includes a sleeve, a slide rod, a spring, and a mounting groove. The slide rod has a mounting groove and is slidably inserted into the sleeve. Its outer end is rotatably connected to the telescopic assembly, and a spring is provided between the slide rod and the outer end of the sleeve. The mounting groove has an outward push cone block at one end near the spring and an inward pull triangular block at the other end. The grinding head slides through the sleeve and the mounting groove. The side away from the spring has an inward pull triangular groove for cooperating with the inward pull triangular block to move the grinding head into the mounting groove.

[0013] The telescopic assembly includes a second cylinder, a connecting hole, and a connecting ring groove. The connecting hole is located at the end of the telescopic control unit, and the connecting ring groove is formed on the inner peripheral wall. The second cylinder is fixed on the frame, and the outer end of its piston rod is rotatably connected to the connecting ring groove through the connecting ring.

[0014] The rotation control assembly includes a floating plate, several floating components, a motor, and gears. The floating plate is floatingly mounted on the placement frame and suspended above the telescopic assembly via several floating components. The motor is fixed on the top of the floating plate, and gears are mounted on the output shaft. The gears have symmetrical guide slopes on their peripheral walls. The gears are connected to the inner cavity grinding assembly through several tooth grooves.

[0015] A second floating component is installed on the opening and closing plate, and the grinding plate can be floated on the bottom surface of the opening and closing plate through the second floating component.

[0016] The second floating component is a pair, which are respectively disposed at both ends of the grinding plate.

[0017] Both floating component one and floating component two include a fixed cylinder, a rod, a fixed stop, a vertical groove, a sliding stop, and a second spring. The fixed cylinder is fixed on the frame or opening and closing plate, with several vertical grooves spaced apart on its periphery. The fixed stop is fixed on the periphery of the fixed cylinder. The rod is slidably inserted into the fixed cylinder, and a sliding stop that slides with the vertical groove is fixed on its periphery. The second spring is sleeved on the outside of the fixed cylinder, with its two ends abutting against the fixed stop and the movable stop, respectively.

[0018] The placement rack includes two semi-circular blocks, with a placement groove on the top adapted to the shape of the casting.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. High-efficiency grinding: Through the synergistic action of the rotation control component and the telescopic component, the inner cavity and outer wall of the casting can be ground simultaneously, which greatly improves grinding efficiency and saves a lot of processing time compared with traditional equipment.

[0021] 2. High versatility: The placement rack adopts two semi-circular blocks and is equipped with placement slots that adapt to the shape of the castings, which can accommodate tubular castings of different specifications. Furthermore, the structural design in each embodiment, such as the telescopic control unit and the opening and closing drive device, can be adjusted by adjusting the position or parameters of the components to meet the grinding needs of castings of different sizes within a certain range, thus improving the versatility of the equipment.

[0022] 3. Stable grinding quality: The grinding plate on the bottom of the hinged plate is floatingly installed through a floating component, which can automatically adjust the contact pressure according to the shape of the outer wall of the casting to ensure uniform grinding of the outer wall; the grinding head in the inner cavity grinding assembly can be precisely controlled to extend and retract through the telescopic control unit, stably pressing against the inner cavity of the casting for grinding or rotating the casting for grinding the outer wall, ensuring the grinding quality of the inner cavity and the outer wall, making the grinding quality of the entire casting more stable and reliable. Attached Figure Description

[0023] Figure 1 This is a perspective view of the casting burr grinding equipment in the embodiments of this application;

[0024] Figure 2 This is a perspective view of the casting burr grinding equipment in the embodiments of this application (without rotation control components);

[0025] Figure 3 This is a perspective view of the rotation control component in an embodiment of this application;

[0026] Figure 4 This is a perspective view of the opening and closing drive device in the embodiments of this application;

[0027] Figure 5 This is a perspective view of the inner cavity grinding component in an embodiment of this application (with the tube sleeve cut horizontally).

[0028] Figure 6 This is a perspective view of the telescopic component and slide bar in the embodiments of this application.

[0029] Figure Labels

[0030] 1-Frame, 2-Placement rack, 3-Opening and closing plate, 4-Opening and closing drive device, 41-Semi-circular cavity, 42-Semi-circular slide plate, 43-Cylinder 1, 44-Guide groove, 45-Guide slider, 46-Connecting rod, 5-Inner cavity grinding assembly, 51-Grinding head, 52-Telescopic control unit, 521-Tube sleeve, 522-Slide rod, 523-Mounting groove, 524-Spring 1, 525-Outward push cone block, 526-Inward pull triangular block, 527-Inner pull triangular groove, 6-Telescopic component, 61-Cylinder II, 62-Connecting hole, 63-Connecting ring groove, 64-Connecting ring, 7-Rotation control component, 71-Floating plate, 72-Floating component I, 73-Motor, 74-Gear, 75-Floating component II, 701-Fixed cylinder, 702-Insertion rod, 703-Fixed stop block, 704-Vertical groove, 705-Sliding stop block, 706-Spring II, 8-Grinding plate. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] The casting burr grinding equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0034] Example 1:

[0035] This application provides a casting burr grinding device, including a frame 1, a placement rack 2, an opening and closing plate 3, an opening and closing drive device 4, an inner cavity grinding assembly 5, a telescopic assembly 6, and a rotation control assembly 7. The placement rack 2 and the telescopic assembly 6 are fixed on the frame 1. The opening and closing plate 3 is flipped and installed on the placement rack 2 by the opening and closing drive device 4. The telescopic assembly 6 is used to control the inner cavity grinding assembly 5 to enter and exit the placement rack 2. The rotation control assembly 7 is used to control the rotation of the inner cavity grinding assembly 5. A grinding plate 8 is floatingly installed on the bottom surface of the opening and closing plate 3. The inner cavity grinding assembly 5 includes a telescopic grinding head 51 and a telescopic control unit 52 for controlling the extension and retraction of the grinding head 51.

[0036] In this embodiment of the application, the placement rack 2 includes two semi-circular blocks, and the top is provided with a placement groove adapted to the shape of the casting.

[0037] like Figures 1 to 6 As shown, due to the above structure, the tubular casting to be ground is placed in the placement slot of the placement rack 2. The opening and closing drive device 4 operates, controlling the opening and closing plate 3 to press down, pressing and fixing the tubular casting to be ground between the grinding plate 8 and the placement slot. The rotation control component 7 and the telescopic component 6 also operate simultaneously, causing the telescopic control unit 52 and the grinding head 51 to rotate and extend into the inner cavity of the casting. The grinding head 51 grinds the inner cavity of the casting until the telescopic control unit 52 contacts the frame 1. The telescopic control unit 52 continues to operate until each grinding head 51 extends... The casting is pushed out and pressed against the inner cavity of the casting. At the same time, the opening and closing drive device 4 releases the pressure on the opening and closing plate 3. The rotation control component 7 continues to operate, driving the casting to rotate. The outer wall of the casting is polished by the grinding plate 8. After the inner cavity and outer wall of the casting are polished, the telescopic component 6 controls the telescopic control unit 52 to retract. Each grinding head 51 retracts to release the fixation on the inner cavity of the casting. The rotation control component 7 stops operating. The opening and closing drive device 4 drives the opening and closing plate 3 to open until the telescopic control unit 52 completely exits the casting. The worker can then take the polished casting out of the placement slot.

[0038] Example 2:

[0039] The difference from Embodiment 1 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the opening and closing drive device 4 includes a semi-circular cavity 41, a semi-circular slide plate 42, a cylinder 43, a guide groove 44, and a guide slider 45. The semi-circular cavity 41 is disposed in the placement frame 2 with its top open. The semi-circular slide plate 42 is slidably installed in the semi-circular cavity 41, with its top hinged to the middle of the opening and closing plate 3 and its bottom hinged to the outer end of the piston rod of the cylinder 43. The guide groove 44 is horizontally disposed on the top of the placement frame 2, and the guide slider 45 is fixed to the end of the side wall of the opening and closing plate 3 and slides in cooperation with the guide groove 44.

[0040] In this embodiment of the application, the placement rack 2 is provided with a notch on the side facing the cylinder 43. The outer end of the piston rod of the cylinder 43 is connected to the lower end of the semi-circular slide plate 42 through a connecting rod 46, and the connecting rod 46 is slidably installed in the notch.

[0041] like Figures 2 to 3 As shown, due to the above structure, after the tubular casting to be polished is placed into the placement slot of the placement rack 2, the piston rod of cylinder 43 extends and pushes the semi-circular slide plate 42 downward in the semi-circular cavity 41 through the connecting rod 46. Since the top of the semi-circular slide plate 42 is hinged to the middle of the opening and closing plate 3, and the guide slider 45 at the end of the side wall of the opening and closing plate 3 slides in cooperation with the guide groove 44 at the top of the placement rack 2, the guide slider 45 slides horizontally outward along the guide groove 44 during the downward movement of the semi-circular slide plate 42, causing the side of the opening and closing plate 3 with the polishing plate 8 to rotate and press down smoothly around the hinge point until the polishing plate 8 contacts the outer wall of the casting and presses it tightly in the placement slot, thus completing the fixing of the casting.

[0042] During the grinding process, if pressure needs to be adjusted or after grinding is completed, the piston rod of cylinder 43 retracts, pulling the semi-circular slide plate 42 to slide upward in the semi-circular cavity 41. The guide slider 45 slides in the opposite direction along the guide groove 44, and the opening and closing plate 3 flips upward accordingly. During this process, the connecting rod 46 slides synchronously in the notch of the placement frame 2 to ensure that the semi-circular slide plate 42 moves smoothly and avoids interfering with the flipping action of the opening and closing plate 3, ensuring that the casting fixing and release process is stable and reliable.

[0043] Example 3:

[0044] The difference from Embodiment 2 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the telescopic control unit 52 includes a sleeve 521, a slide rod 522, a spring 524, and a mounting groove 523. The slide rod 522 is provided with a mounting groove 523 and is slidably inserted into the sleeve 521. Its outer end is rotatably connected to the telescopic assembly 6 and a spring 524 is provided between the slide rod 522 and the outer end of the sleeve 521. The mounting groove 523 is provided with an outward push cone block 525 at one end near the spring 524 and an inward pull triangle block 526 at the other end. The grinding head 51 is slidably inserted into the sleeve 521 and the mounting groove 523. The side away from the spring 524 is provided with an inward pull triangle groove 527 for cooperating with the inward pull triangle block 526 to move the grinding head 51 into the mounting groove 523.

[0045] like Figures 5 to 6As shown, due to the above structure, when the telescopic assembly 6 pushes the telescopic control unit 52 to rotate and extend the grinding head 51 into the inner cavity of the casting, the slide rod 522 moves synchronously with the telescopic control unit 52. As the telescopic control unit 52 continues to go deeper, the outer end of the slide rod 522 gradually approaches the frame 1. When the slide rod 522 contacts the frame 1, the slide rod 522 stops moving relative to the sleeve 521, while the sleeve 521 continues to move into the inner cavity of the casting under the push of the telescopic assembly 6. At this time, the slide rod 522 and the sleeve 521 slide relative to each other, and the spring 524 is compressed.

[0046] When the sleeve 521 and the grinding head 51 are stationary, the outward push cone 525 on the slide rod 522 moves with the slide rod 522. The outward push cone 525 gradually embeds into the inner side of the grinding head 51, pushing each grinding head 51 to slide outward along the sleeve 521 and the mounting groove 523 until the grinding head 51 presses against the inner cavity of the casting and forms a fixed position. Then, the rotation control component 7 runs, causing the grinding plate 8 to grind the outer wall of the casting. After grinding, the telescopic component 6 pulls the sleeve 521 backward, and the spring 524 resets, pushing the slide rod 522 to move in the opposite direction relative to the sleeve 521. The outward and inward push cones 525 disengage from the inner side of the grinding head 51, and the pull triangular block gradually embeds into the inner pull triangular groove 527 of the grinding head 51, pulling each grinding head 51 to slide inward along the mounting groove 523, releasing the pressure on the inner cavity of the casting, and realizing the retraction and reset of the grinding head 51.

[0047] Example 4:

[0048] The difference from Embodiment 3 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the telescopic component 6 includes a second cylinder 61, a connecting hole 62 and a connecting ring groove 63. The connecting hole 62 is provided at the end of the telescopic control unit 52, and the connecting ring groove 63 is opened on the inner peripheral wall. The second cylinder 61 is fixed on the frame 1, and the outer end of its piston rod is rotatably connected to the connecting ring groove 63 through a connecting ring 64.

[0049] like Figure 6 As shown, due to the above structure, after the casting is placed and fixed, the piston rod of cylinder 61 extends out and rotates with the connecting ring 64 at the outer end of the piston rod and the connecting ring groove 63 in the connecting hole 62 at the end of the telescopic control unit 52, pushing the telescopic control unit 52 to move the grinding head 51 into the inner cavity of the casting. Since the connecting ring 64 can rotate freely in the connecting ring groove 63, when the rotation control component 7 drives the telescopic control unit 52 to rotate, the piston rod of cylinder 61 will not rotate synchronously with it, ensuring that the telescopic action and the rotation action do not interfere with each other.

[0050] After grinding is completed, the piston rod of cylinder 61 retracts, and through the cooperation of connecting ring 64 and connecting ring groove 63, it pulls the telescopic control unit 52 out of the casting cavity until it is completely separated from the casting. Throughout the process, the rotational cooperation of connecting ring 64 and connecting ring groove 63 always ensures the coordination of telescopic and rotational actions and avoids motion interference.

[0051] Example 5:

[0052] The difference from Embodiment 4 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the rotation control component 7 includes a floating plate 71, a plurality of floating components 72, a motor 73 and a gear 74. The floating plate 71 is floatingly mounted on the placement frame 2 and suspended above the telescopic component 6 through the plurality of floating components. The motor 73 is fixed on the top of the floating plate 71 and the gear 74 is mounted on the output shaft. The gear 74 has symmetrical guide slopes on its peripheral wall and is connected to the inner cavity grinding component 5 through a plurality of tooth grooves.

[0053] In this embodiment of the application, a floating component 75 is installed on the opening and closing plate 3, and the grinding plate 8 can be floatingly installed on the bottom surface of the opening and closing plate 3 through the floating component 75.

[0054] In this embodiment of the application, there is a pair of floating members 75, which are respectively disposed at both ends of the grinding plate 8.

[0055] In this embodiment of the application, both floating component 1 72 and floating component 2 75 include a fixed cylinder 701, a rod 702, a fixed stop 703, a vertical groove 704, a sliding stop 705, and a spring 2 706. The fixed cylinder 701 is fixed on the frame 1 or the opening and closing plate 3, and a plurality of vertical grooves 704 are opened at intervals on its periphery. The fixed stop 703 is fixed on the periphery of the fixed cylinder 701. The rod 702 is slidably inserted into the fixed cylinder 701, and a sliding stop 705 that slides with the vertical groove 704 is fixed on its periphery. The spring 2 706 is sleeved on the outside of the fixed cylinder 701, and its two ends abut against the fixed stop 703 and the movable stop, respectively.

[0056] like Figure 4 As shown, due to the aforementioned structure, after the casting is fixed, the motor 73 starts and drives the gear 74 to rotate. The gear 74 is connected to the telescopic control unit 52 through its tooth groove, driving the grinding head 51 to rotate and grind the inner cavity of the casting. During rotation, the guide slope on the peripheral wall of the gear 74 can adapt to the axial movement of the telescopic control unit 52, ensuring that the transmission connection remains stable. At the same time, the floating plate 71 is suspended and installed through the first floating component 72. When the telescopic control unit 52 extends or retracts, and the grinding head 51 passes the gear 74, the insertion rod 702 of the first floating component 72 slides inside the fixed cylinder 701, the sliding stop 705 moves along the vertical groove 704, and the second spring 706 is compressed and reset, causing the floating plate 71 to float axially synchronously with the telescopic control unit 52, ensuring the continuous meshing of the gear 74 and the telescopic control unit 52.

[0057] When grinding the outer wall, the floating component 75 on the opening and closing plate 3 plays a role: the grinding plate 8 slides in the fixed cylinder 701 through the insert rod 702, and the spring 706 buffers the grinding pressure, so that the grinding plate 8 always fits against the outer wall of the casting. When the casting rotates, the elastic expansion and contraction of the floating component 75 can compensate for the shape error of the casting and ensure that the outer wall is ground evenly. After grinding is completed, the spring 706 of each floating component resets, driving the relevant components back to the initial position.

[0058] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0059] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A casting burr removal and polishing device, characterized in that, The device includes a frame, a placement rack, a hinged plate, an opening and closing drive device, an internal cavity grinding assembly, a telescopic assembly, and a rotation control assembly. The placement rack and the telescopic assembly are fixed on the frame. The hinged plate is flipped and mounted on the placement rack by the opening and closing drive device. The telescopic assembly is used to control the internal cavity grinding assembly to enter and exit the placement rack. The rotation control assembly is used to control the rotation of the internal cavity grinding assembly. A grinding plate is floatingly mounted on the bottom surface of the hinged plate. The internal cavity grinding assembly includes a telescopic grinding head and a telescopic control unit for controlling the extension and retraction of the grinding head. The opening and closing drive device includes a semi-circular cavity, a semi-circular sliding plate, a cylinder, a guide groove, and a guide slider. The semi-circular cavity is set in the placement frame and is open at the top. The semi-circular sliding plate is slidably installed in the semi-circular cavity, with its top hinged to the middle of the opening and closing plate and its bottom hinged to the outer end of the piston rod of the cylinder. The guide groove is horizontally set at the top of the placement frame, and the guide slider is fixed to the end of the side wall of the opening and closing plate and slides in cooperation with the guide groove. The placement rack has a notch on the side facing the cylinder one. The outer end of the piston rod of the cylinder one is connected to the lower end of the semi-circular slide plate through a connecting rod. The connecting rod is slidably installed in the notch. The telescopic control unit includes a sleeve, a slide rod, a spring, and a mounting groove. The slide rod has a mounting groove and is slidably inserted into the sleeve. Its outer end is rotatably connected to the telescopic assembly, and a spring is provided between the slide rod and the outer end of the sleeve. The mounting groove has an outward push cone block at one end near the spring and an inward pull triangle block at the other end. The grinding head slides through the sleeve and the mounting groove. The side away from the spring has an inward pull triangle groove for cooperating with the inward pull triangle block to move the grinding head into the mounting groove. The rotation control assembly includes a floating plate, several floating components, a motor, and gears. The floating plate is floatingly mounted on the placement frame and suspended above the telescopic assembly via several floating components. The motor is fixed to the top of the floating plate, and a gear is mounted on the output shaft. The gear has symmetrical guide slopes on its peripheral wall. The gear is connected to the inner cavity grinding assembly through several tooth grooves. A second floating component is installed on the opening and closing plate, and the grinding plate can be floated on the bottom surface of the opening and closing plate through the second floating component.

2. The casting burr grinding equipment according to claim 1, characterized in that, The telescopic assembly includes a second cylinder, a connecting hole, and a connecting ring groove. The connecting hole is located at the end of the telescopic control unit, and the connecting ring groove is formed on the inner peripheral wall. The second cylinder is fixed on the frame, and the outer end of its piston rod is rotatably connected to the connecting ring groove through the connecting ring.

3. The casting burr grinding equipment according to claim 1, wherein the floating part 2 has a pair and is respectively disposed at both ends of the grinding plate.

4. The casting burr grinding equipment according to claim 1, wherein both the first floating component and the second floating component include a fixed cylinder, an insert rod, a fixed stop block, a vertical groove, a sliding stop block, and a second spring. The fixed cylinder is fixedly mounted on the frame or opening and closing plate, and a plurality of vertical grooves are opened at intervals on its periphery. The fixed stop block is fixedly mounted on the periphery of the fixed cylinder. The insert rod is slidably inserted into the fixed cylinder, and a sliding stop block that slides with the vertical groove is fixedly mounted on its periphery. The second spring is sleeved on the outside of the fixed cylinder, and its two ends abut against the fixed stop block and the movable stop block, respectively.

5. The casting burr grinding equipment according to claim 1, wherein the placement frame comprises two semi-circular blocks, and the top is provided with a placement groove adapted to the shape of the casting.

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