A polishing device for automobile parts casting

Abstract

This application relates to a grinding device for casting automotive parts, comprising: a base; a slider slidably disposed on the base; a rotating column rotatably disposed on the slider; a first driving assembly including a first gear, a first rack, a first worm gear, a first worm, and a ratchet assembly; and a pushing assembly disposed on the base and connected to the slider to drive the slider to move. In use, the operator only needs to repeatedly push and pull a wrench to fix, grind, rotate, grind, and rotate the workpiece until it is released, and then replace the workpiece. This not only facilitates operation, saves manpower, and speeds up work efficiency, thus ensuring grinding efficiency, but also prevents the operator's hand from contacting the workpiece during grinding protrusions, reducing safety hazards. It also avoids prolonged pressing of parts by hand, which could cause severe finger deformation, making it highly practical.

Description

Technical Field

[0001] This application relates to the field of automotive parts casting technology, and in particular to a grinding device for automotive parts casting. Background Technology

[0002] Currently, automobiles are a common means of transportation in people's lives. Many precision parts are installed inside automobiles, and many of these parts are made by casting. However, after casting, there may be inclusions and extensions on the gating gates, so the gating gates need to be cut and polished.

[0003] In related technologies, when producing some small and medium-sized parts, the gates and risers on the parts are first cut off. Then, the parts are manually held and the remaining gate protrusions are ground off by a rotating sanding wheel. However, in actual production, in order to make the parts more thoroughly ground, the workers need to press the parts against the sanding wheel for a long time, which poses a safety hazard. In addition, after grinding one gate and riser, the workers need to manually rotate the parts to grind the next gate and riser. This long-term operation not only wastes a lot of manpower, but also causes serious deformation of the fingers of the workers due to pressing the parts with their hands for a long time, which is very inconvenient.

[0004] To address the aforementioned problems, a grinding device for casting automotive parts is now designed. Summary of the Invention

[0005] This application provides a grinding device for casting automotive parts, which solves the problem in the related art that when grinding small and medium-sized parts, workers need to squeeze the parts by hand towards the abrasive belt wheel for a long time and constantly rotate the parts. This not only wastes a lot of manpower and poses safety hazards, but also causes serious deformation of the workers' fingers due to long-term operation.

[0006] In a first aspect, a grinding apparatus for casting automotive parts is provided, comprising:

[0007] Base;

[0008] A slider, which is slidably mounted on a base;

[0009] A rotating column, the rotation of which is set on a slider;

[0010] The first drive assembly includes a first gear, a first rack, a first worm wheel, a first worm, and a ratchet assembly. The first worm wheel is sleeved on a rotating column, the first worm is rotatably mounted on a slider, the first worm and the first worm wheel cooperate, the first gear is mounted on the first worm, the first rack is mounted on a base, the first gear and the first rack mesh, and the ratchet assembly is mounted on the first worm and connected to the first gear.

[0011] A pusher assembly, which is mounted on the base and connected to the slider, drives the slider to move.

[0012] In some embodiments, the ratchet assembly includes a pawl, a spring, and a plurality of ratchet grooves. The pawl is rotatably mounted on a first worm, and the spring is mounted on the first worm. The two ends of the spring are respectively connected to the pawl and the first worm. The plurality of ratchet grooves are all formed on the inner wall of the first gear and are evenly distributed in a ring on the first gear. The pawl cooperates with the ratchet grooves.

[0013] In some embodiments, the pushing assembly includes a rotating shaft, a second gear, a second rack, and a wrench. The rotating shaft is rotatably mounted on a base, the second gear is mounted on the rotating shaft, the second rack is mounted on a slider, the second rack meshes with the second gear, and the wrench is located at one end of the rotating shaft.

[0014] In some embodiments, a limiting component is also included, which includes a first arc-shaped plate, a third gear, a second drive component, and two sets of clamping members. The first arc-shaped plate is disposed at one end of the rotating column, and the third gear is rotatably disposed within the rotating column. The two sets of clamping members are symmetrically disposed on both sides of the first arc-shaped plate. Each clamping member includes a sliding plate, a second arc-shaped plate, and a third rack. The sliding plate is slidably disposed within the rotating column, and the second arc-shaped plate is disposed on the sliding plate, corresponding to the first arc-shaped plate. The third rack is disposed on the sliding plate, and the two sets of third racks are respectively located on both sides of the third gear. The third gear meshes with the two sets of third racks.

[0015] The second drive assembly is mounted on the rotating column and connected to the base to drive the third gear to rotate.

[0016] In some embodiments, the second drive assembly includes a connecting rod, a second worm gear, a second worm, a fourth gear, and a fourth rack. The connecting rod is rotatably disposed within the rotating column and is connected to a third gear. The second worm gear is disposed on the connecting rod and is located at the end of the rotating column away from the first arc-shaped plate. The second worm gear is rotatably disposed within the rotating column. The second worm is rotatably disposed within the rotating column and engages with the second worm gear. The fourth gear is disposed on the second worm. The fourth rack is disposed on the base and meshes with the fourth gear. The fourth rack is located on the side of the first rack away from the first arc-shaped plate.

[0017] In some embodiments, the base includes a support, a fixed frame, and a plurality of first guide rods. The fixed frame is disposed on the support, and the plurality of first guide rods are disposed on the fixed frame. The first rack, the fourth rack, and the rotating shaft are all disposed on the fixed frame.

[0018] The slider includes a slider body and a plurality of guide sleeves. The plurality of guide sleeves are all disposed on the slider body and are all sleeved on a plurality of first guide rods. The guide sleeves are slidably connected to the first guide rods.

[0019] In some embodiments, the end of the fixing frame away from the first arcuate plate is hinged to the support;

[0020] The grinding device further includes an adjustment assembly, which includes a connecting rod, a mating block, a threaded rod, a second guide rod, and a handwheel. The threaded rod is rotatably mounted on a support, and the handwheel is located at the end of the threaded rod away from the first arc-shaped plate. The mating block is sleeved on the threaded rod and threadedly connected to it. The second guide rod is located on the support, passes through the mating block, and is slidably connected to it. The two ends of the connecting rod are respectively hinged to the mating block and the fixed frame.

[0021] In some embodiments, rubber pads are provided on opposite sides of the two second arc-shaped plates.

[0022] In some embodiments, a housing is fitted onto the slider, and the housing corresponds to the first gear and the fourth gear.

[0023] In some embodiments, the fixed frame is provided with a tension spring, and the two ends of the tension spring are respectively connected to the fixed frame and the wrench.

[0024] This application provides a grinding device for casting automotive parts. In use, the operator simply places the workpiece on a first arc-shaped plate and repeatedly pushes and pulls a wrench to fix, grind, rotate, grind, and rotate the workpiece until it is released. The workpiece can then be replaced. This not only simplifies operation, saves manpower, and increases work efficiency, thus ensuring grinding efficiency, but also prevents the operator's hands from contacting the workpiece during grinding protrusions, reducing safety hazards. It also avoids prolonged hand pressure on parts, preventing severe finger deformation. Furthermore, the device uses a purely mechanical mechanism with interconnected components, making it easy to maintain, applicable to harsh grinding environments, and cost-effective with high practicality. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this application;

[0027] Figure 2 A three-dimensional structural schematic diagram provided for an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the implementation structure provided in the embodiments of this application;

[0029] Figure 4 A three-dimensional structural schematic diagram of the pushing component provided in an embodiment of this application;

[0030] Figure 5 A three-dimensional structural schematic diagram of the pushing component provided in an embodiment of this application;

[0031] Figure 6 A schematic diagram of the cross-sectional structure provided in the embodiments of this application;

[0032] Figure 7 Provided for the embodiments of this application Figure 6 Enlarged structural diagram at point A;

[0033] Figure 8 A three-dimensional cross-sectional structural diagram of the limiting component provided in an embodiment of this application;

[0034] Figure 9 A three-dimensional cross-sectional structural diagram of the limiting component provided in an embodiment of this application;

[0035] Figure 10 A three-dimensional cross-sectional structural diagram of the limiting component provided in an embodiment of this application;

[0036] Figure 11 A three-dimensional structural diagram of the initial state provided in the embodiments of this application;

[0037] Figure 12 A three-dimensional structural diagram of the operating state provided in the embodiments of this application;

[0038] Figure 13 A three-dimensional structural diagram of the polishing state provided in an embodiment of this application;

[0039] Figure 14 This is a three-dimensional structural diagram of the reset state provided in an embodiment of this application.

[0040] In the diagram: 1. Base; 11. Support; 12. Fixing frame; 13. First guide rod;

[0041] 2. Slider; 21. Slider body; 22. Guide sleeve;

[0042] 3. Rotating column;

[0043] 4. First drive assembly; 41. First gear; 42. First rack; 43. First worm gear; 44. First worm; 45. Ratchet assembly; 451. Pawl; 452. Spring; 453. Ratchet groove;

[0044] 5. Push assembly; 51. Rotating shaft; 52. Second gear; 53. Second rack; 54. Wrench;

[0045] 6. Limiting assembly; 61. First arc-shaped plate; 62. Third gear; 63. Second drive assembly; 631. Connecting rod; 632. Second worm gear; 633. Second worm; 634. Fourth gear; 635. Fourth rack; 64. Clamping component; 641. Slide plate; 642. Second arc-shaped plate; 643. Third rack;

[0046] 7. Adjustment assembly; 71. Connecting rod; 72. Mating block; 73. Threaded rod; 74. Second guide rod; 75. Handwheel;

[0047] 8. Rubber pad; 9. Housing; 10. Tension spring;

[0048] 100, workpiece; 200, protrusion. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] This application provides a grinding device for casting automotive parts, which solves the problem in related technologies where, when grinding small and medium-sized parts, workers need to squeeze the parts towards the abrasive belt wheel by hand for a long time and constantly rotate the parts. This not only wastes a lot of manpower and poses safety hazards, but also causes serious deformation of the workers' fingers due to prolonged operation.

[0051] Please see Figures 1-14A grinding device for casting automotive parts includes: a base 1, a slider 2, a rotating column 3, a first drive assembly 4, and a push assembly 5. The slider 2 is slidably mounted on the base 1, and the rotating column 3 is rotatably mounted on the slider 2. The first drive assembly 4 includes a first gear 41, a first rack 42, a first worm gear 43, a first worm 44, and a ratchet assembly 45. The first worm gear 43 is sleeved on the rotating column 3, and the first worm 44 is rotatably mounted on the slider 2, engaging with the first worm gear 43. The first gear 41 is mounted on the first worm 44, and the first rack 42 is mounted on the base 1, meshing with the first rack 42. The ratchet assembly 45 is mounted on the first worm 44 and connected to the first gear 41. The push assembly 5 is mounted on the base 1 and connected to the slider 2 to drive the slider 2 to move.

[0052] During the operation, after the gating and riser extension on the small or medium-sized workpiece 100 is cut off, when it is necessary to grind the remaining protrusion 200 on the workpiece 100, the operator can place the device next to the rotating sanding wheel, then fix the workpiece 100 on the rotating column 3 near the end of the sanding wheel, and simultaneously align one of the protrusions 200 on the workpiece 100 with the sanding wheel, such as... Figure 11 As shown, the slider 2 can then be moved closer to the abrasive belt wheel by pushing component 5. This will cause the slider 2 to move the first gear 41, as shown. Figure 12 As shown, when the first gear 41 contacts the first rack 42 during its movement, the continued movement of the first gear 41 will engage with the first gear 42 for transmission. Thus, the first gear 41 will rotate forward as it approaches the abrasive belt wheel. Simultaneously, due to the unidirectional transmission characteristic of the ratchet assembly 45, the first gear 41 will not drive the first worm 44 to rotate as it approaches the abrasive belt wheel. Therefore, the first worm wheel 43 and the rotating column 3 will not rotate, and the first gear 41 will move to a point where it no longer contacts the first rack 42. Figure 13 As shown, this allows the workpiece 100 to move in a straight line toward the abrasive belt wheel, so that the protrusion 200 on the workpiece 100 comes into contact with the rotating abrasive belt wheel, as shown. Figure 3 As shown, the protrusion 200 is polished. At the same time, due to the self-locking property of the first worm wheel 43 and the first worm 44 in the transmission, the first worm wheel 43 will not rotate on its own when the first worm 44 is not rotating. This can prevent the rotating column 3 from rotating during the polishing of the workpiece 100, thereby preventing the workpiece 100 from being displaced during the polishing process, so as to ensure the polishing effect of the protrusion 200.

[0053] After one of the protrusions 200 is ground, the slider 2 can be moved in the opposite direction away from the abrasive belt wheel by pushing component 5. During the reset process, slider 2 will move the first gear 41 and the workpiece 100. Before the first gear 41 contacts the first rack 42, the first gear 41 does not rotate, and the rotating column 3 does not rotate either. This allows the workpiece 100 to move away from the abrasive belt wheel in a straight line, preventing other parts of the workpiece 100 from contacting the abrasive belt wheel and causing wear during the reverse movement. This allows the workpiece 100 to move away from the abrasive belt wheel first, and then slider 2 continues to move the first gear 41 to... When meshing with the first rack 42, the first gear 41 continues to move and rotates through the meshing transmission with the first rack 42. Due to the unidirectional transmission characteristic of the ratchet assembly 45, when the first gear 41 rotates in the forward direction, it does not drive the first worm 44 to rotate. Therefore, when the first gear 41 rotates in the reverse direction to reset, it will drive the first worm 44 to rotate through the ratchet assembly 45. In this way, the first worm 44 will drive the first worm wheel 43 and the rotating column 3 to rotate through the meshing transmission with the first worm wheel 43, thereby causing the workpiece 100 on the rotating column 3 to rotate. When the first gear 41 finishes meshing with the first rack 42, the workpiece 100 on the rotating column 3 will have rotated exactly 90 degrees. Figure 14 As shown, align another protrusion 200 with the abrasive belt wheel;

[0054] This allows the rotating column 3 to remain stationary as it moves closer to the sanding wheel, and to rotate 90 degrees as it moves away from the sanding wheel. After grinding one protrusion 200, when grinding the next protrusion 200, the sliding block 2 can be moved closer to the sanding wheel again by the pushing component 5, following the same steps as above. The sliding block 2 first moves the workpiece 100 closer to the sanding wheel to grind the protrusion 200, and then moves the workpiece 100 away from the sanding wheel and rotates 90 degrees, aligning the next protrusion 200 with the sanding wheel. This process is repeated four times to grind all four protrusions 200 on the workpiece 100. The worker then removes the ground workpiece 100 from the rotating column 3, and installs the workpiece 100 to be ground back onto the rotating column 3, repeating the above steps.

[0055] Meanwhile, the unidirectional transmission direction of the ratchet assembly 45 is not limited to the aforementioned directions. The ratchet assembly 45 can also transmit in reverse, causing the first gear 41 to rotate when it approaches the abrasive belt and meshes with the first rack 42, thus rotating the rotating column 3 as it moves closer to the abrasive belt. Conversely, when the first gear 41 moves away from the abrasive belt and meshes with the first rack 42, it does not rotate the first worm 44, thus not rotating the rotating column 3 as it moves away from the abrasive belt. In this way, when the device is in use, it only needs to be driven by the ratchet assembly 45. The ratchet assembly 45 causes the rotating column 3 to perform linear motion once during reciprocating motion and continuous rotary linear motion, allowing the workpiece 100 to rotate 90 degrees during the reciprocating motion. This allows the positions of different protrusions 200 to change, so that when the workpiece 100 contacts the sanding wheel again, the ground protrusion 200 rotates to no longer contact the sanding wheel, and the unground protrusion 200 rotates 90 degrees to contact the sanding wheel. In this way, the ratchet assembly 45 only needs to achieve a unidirectional transmission effect, without requiring a specific direction, making it highly applicable.

[0056] When a worker needs to grind the protrusion 200 on the workpiece 100, they only need to mount the workpiece 100 on the rotating column 3, and then drive the slider 2 to reciprocate by pushing the component 5. Through the transmission in cooperation with the first drive component 4, the workpiece 100 will automatically rotate during the grinding process. This eliminates the need for the worker to hold the workpiece 100 close to the sanding wheel to grind the protrusion 200, and also eliminates the need for the worker to manually rotate the workpiece 100. This not only prevents the worker's hand from coming into contact with the workpiece 100 during the grinding process, reducing safety hazards and avoiding serious finger deformation caused by prolonged pressing of the part by hand, but also saves manpower, speeds up the worker's work efficiency, and ensures the grinding efficiency of the workpiece 100. It is highly practical.

[0057] Please see Figure 7 In this embodiment, the ratchet assembly 45 includes a pawl 451, a spring 452, and a plurality of ratchet grooves 453. The pawl 451 is rotatably mounted on the first worm 44, and the spring 452 is mounted on the first worm 44. The two ends of the spring 452 are respectively connected to the pawl 451 and the first worm 44. The plurality of ratchet grooves 453 are all formed on the inner wall of the first gear 41. The plurality of ratchet grooves 453 are evenly distributed in a ring on the first gear 41. The pawl 451 cooperates with the ratchet grooves 453.

[0058] When the first gear 41 meshes with the first rack 42 and rotates, the first gear 41 will drive several ratchet grooves 453 to rotate. During the rotation, the ratchet grooves 453 will push the pawl 451 closer to the first worm 44 and squeeze the spring 452. In this way, the first gear 41 will not rotate at the same time as the first worm 44. When the first gear 41 meshes with the first rack 42 in the opposite direction and rotates, the pawl 451 extends into the ratchet groove 453 through the elastic force of the spring 452. The rotation of the ratchet groove 453 will drive the first worm 44 to rotate through the pawl 451, so that the first gear 41 and the first worm 44 rotate synchronously. In this way, the first gear 41 can drive the first worm 44 to rotate only in one direction through the cooperation of the ratchet grooves 453 and the pawl 451.

[0059] Meanwhile, the installation directions of the pawl 451 and the ratchet groove 453 can be mirrored, as long as the first gear 41 can drive the first worm 44 to rotate once when rotating in both directions and not drive the first worm 44 to rotate once.

[0060] Please see Figures 4-6 The pushing component 5 includes a rotating shaft 51, a second gear 52, a second rack 53, and a wrench 54. The rotating shaft 51 is rotatably mounted on the base 1. The second gear 52 is mounted on the rotating shaft 51. The second rack 53 is mounted on the slider 2. The second rack 53 meshes with the second gear 52. The wrench 54 is located at one end of the rotating shaft 51.

[0061] During operation, the worker can rotate the wrench 54, which in turn drives the second gear 52 on the rotating shaft 51 to rotate. The second gear 52, in turn, meshes with the second rack 53, causing the rack 53 and the slider 2 to move. When the worker pushes the wrench 54 towards the sander, the slider 2 moves the workpiece 100 closer to the sander, grinding the protrusions 200 on the workpiece 100. When the worker pulls the wrench 54 towards themselves, the slider 2 moves the workpiece 100 away from the sander. By repeatedly pushing and pulling the wrench 54, the worker can move the slider 2 back and forth, bringing the workpiece 100 closer to or away from the sander. This lever-like action of pushing and pulling the wrench 54 allows the worker to move the workpiece 100 with minimal force, ensuring the protrusions 200 on the workpiece 100 are firmly against the sander. This not only saves manpower and ensures effective grinding of the protrusions 200, but also features a simple structure, low cost, and strong practicality.

[0062] Please see Figures 8-10Specifically, in this embodiment, a limiting component 6 is also included. The limiting component 6 includes a first arc-shaped plate 61, a third gear 62, a second driving component 63, and two sets of clamping members 64. The first arc-shaped plate 61 is disposed at one end of the rotating column 3. The third gear 62 is rotatably disposed inside the rotating column 3. The two sets of clamping members 64 are symmetrically disposed on both sides of the first arc-shaped plate 61. Each clamping member 64 includes a sliding plate 641, a second arc-shaped plate 642, and a third rack 643. The sliding plate 641 is slidably disposed inside the rotating column 3. The second arc-shaped plate 642 is disposed on the sliding plate 641 and corresponds to the first arc-shaped plate 61. The third rack 643 is disposed on the sliding plate 641. The two sets of third racks 643 are respectively located on both sides of the third gear 62. The third gear 62 meshes with the two sets of third racks 643. The second driving component 63 is disposed on the rotating column 3 and connected to the base 1 to drive the third gear 62 to rotate.

[0063] During operation, when it is necessary to fix the workpiece 100 on the rotating column 3, the workpiece 100 can be placed on the first arc plate 61 first, and then the third gear 62 can be driven to rotate by the second drive assembly 63. In this way, the third gear 62 will drive the two sets of third racks 643 to move closer to each other through meshing transmission with the two sets of third racks 643. This will cause the two sets of third racks 643 to drive the two second arc plates 642 to move closer to each other through the sliding plate 641. In this way, the workpiece 100 can be limited and fixed by the clamping action of the first arc plate 61 and the two sets of second arc plates 642, so as to prevent the workpiece 100 from moving during the grinding process.

[0064] When it is necessary to remove the workpiece 100, the third gear 62 is driven to rotate in the opposite direction by the second drive assembly 63. In this way, the meshing transmission between the third gear 62 and the third rack 643 can drive the two sets of second arc plates 642 to move away from each other, so that the worker can remove the workpiece 100 from the first arc plate 61, which is convenient for use.

[0065] Among them, rubber pads 8 are provided on the opposite side of the two second arc-shaped plates 642;

[0066] When the workpiece 100 is clamped and fixed by the second arc plate 642, the rubber pad 8 can come into contact with the workpiece 100. This not only increases the friction between the second arc plate 642 and the workpiece 100 through the rubber pad 8, ensuring the stability of the workpiece 100 clamping, but also avoids the workpiece 100 from directly and rigidly pressing against the second arc plate 642, which could damage the workpiece 100. This ensures the quality of the workpiece 100 and is highly practical.

[0067] More specifically, the second drive assembly 63 includes a connecting rod 631, a second worm gear 632, a second worm 633, a fourth gear 634, and a fourth rack 635. The connecting rod 631 is rotatably disposed within the rotating column 3 and is connected to the third gear 62. The second worm gear 632 is disposed on the connecting rod 631 and is located at the end of the rotating column 3 away from the first arc plate 61. The second worm gear 632 is rotatably disposed within the rotating column 3. The second worm 633 is rotatably disposed within the rotating column 3 and engages with the second worm gear 632. The fourth gear 634 is disposed on the second worm 633. The fourth rack 635 is disposed on the base 1 and meshes with the fourth gear 634. The fourth rack 635 is located on the side of the first rack 42 away from the first arc plate 61.

[0068] In this way, during use, when it is necessary to fix the workpiece 100 on the rotating column 3, the device is in its initial position. The operator can place the workpiece 100 on the first arc plate 61 and align it. Then, when the operator pushes the wrench 54 to move the slider 2 closer to the abrasive belt wheel, the fourth gear 634 will move with the slider 2 and engage with the fourth rack 635. In this way, the fourth gear 634 will rotate during the movement through the meshing transmission with the fourth rack 635. The fourth rack 635 will then drive the second worm 633 to rotate, and the second worm 633 will drive the connecting rod 631 to rotate through the engagement transmission with the second worm wheel 632. Thus, the connecting rod 631 drives the... The third gear 62 rotates, causing the two sets of clamping members 64 to move closer together and clamp the workpiece 100. When the fourth gear 634 and the fourth rack 635 are engaged and not in contact, the self-locking property of the second worm gear 633 and the second worm wheel 632 transmission prevents the second worm wheel 632 from rotating on its own. This prevents the connecting rod 631 from rotating on its own when the fourth gear 634 is not rotating, thus preventing the two clamping members 64 from shifting during the grinding process. This ensures that the two clamping members 64 can always clamp and fix the workpiece 100, keeping the workpiece 100 in a stable state during the grinding process and preventing displacement of the workpiece 100 from affecting the grinding effect.

[0069] Conversely, when it is necessary to remove the workpiece 100, the fourth gear 634 can move in the opposite direction to mesh with the fourth rack 635. When the fourth gear 634 meshes with the fourth rack 635 in the opposite direction, it will drive the second worm 633 to rotate in the opposite direction, thereby driving the second worm wheel 632, the connecting rod 631 and the third gear 62 to rotate in the opposite direction, so that the two sets of clamping parts 64 move away from each other, making it easier for the operator to remove the workpiece 100. This makes it more convenient to use. The operator only needs to push or pull the wrench 54 to drive the two sets of clamping parts 64 to move closer or further apart through the second drive assembly 63, realizing the automatic release of the workpiece 100. Then the operator only needs to pick up and put away the workpiece 100 on the first arc plate 61 for replacement. This eliminates the need for the operator to manually limit and fix the workpiece 100, which not only saves manpower, but also facilitates the operation of the operator, thereby speeding up the work efficiency and making it highly practical.

[0070] Preferably, a housing 9 is fitted onto the slider 2, and the housing 9 corresponds to the first gear 41 and the fourth gear 634;

[0071] In this way, the housing 9 can shield and protect the first drive component 4 and the second drive component 63. This not only prevents dust and other debris from accidentally falling into the first drive component 4 and the second drive component 63 and affecting the transmission of the device, thus enhancing the safety and service life of the device, but also makes the device more neat and beautiful and convenient to use.

[0072] Please see Figures 1-3 Furthermore, the base 1 includes a support 11, a fixed frame 12, and a plurality of first guide rods 13. The fixed frame 12 is disposed on the support 11, and the plurality of first guide rods 13 are disposed on the fixed frame 12. The first rack 42, the fourth rack 635, and the rotating shaft 51 are all disposed on the fixed frame 12. The slider 2 includes a slider body 21 and a plurality of guide sleeves 22. The plurality of guide sleeves 22 are disposed on the slider body 21, and the plurality of guide sleeves 22 are sleeved on the plurality of first guide rods 13. The guide sleeves 22 are slidably connected to the first guide rods 13.

[0073] By using the guiding and limiting function of multiple guide sleeves 22 slidingly connected to the first guide rod 13, the slider body 21 can only move in a straight line along the first guide rod 13, thereby avoiding the slider body 21 from deviating during the movement. This ensures the accuracy of the meshing between the first gear 41 and the first rack 42, as well as the accuracy of the meshing between the fourth gear 634 and the fourth rack 635, thus ensuring the precise and stable use of the entire device and its strong practicality.

[0074] Preferably, the fixing frame 12 is provided with a tension spring 10, and the two ends of the tension spring 10 are respectively connected to the fixing frame 12 and the wrench 54;

[0075] When the worker pushes the wrench 54 to grind the protrusion 200, the spring force of the tension spring 10 can pull the wrench 54, thereby automatically resetting the wrench 54 and the slider 2, which provides assistance to the worker. This makes the operation more convenient and labor-saving for the worker when using the device.

[0076] Furthermore, the end of the fixed frame 12 away from the first arc plate 61 is hinged to the support 11. The grinding device also includes an adjustment component 7, which includes a connecting rod 71, a mating block 72, a threaded rod 73, a second guide rod 74, and a handwheel 75. The threaded rod 73 is rotatably mounted on the support 11. The handwheel 75 is located at the end of the threaded rod 73 away from the first arc plate 61. The mating block 72 is sleeved on the threaded rod 73 and threadedly connected to it. The second guide rod 74 is located on the support 11 and passes through the mating block 72 and is slidably connected to it. The two ends of the connecting rod 71 are respectively hinged to the mating block 72 and the fixed frame 12.

[0077] During use, the operator can rotate the handwheel 75 to drive the threaded rod 73 to rotate. As the threaded rod 73 rotates, it connects with the mating block 72 via a thread, causing the mating block 72 to move. Simultaneously, the second guide rod 74, which is slidably connected to the mating block 72, guides the mating block 72 to move only in a straight line. This movement of the mating block 72, through the connecting rod 71, pushes the fixed frame 12 to move. Simultaneously, the fixed frame 12 rotates through its rotatable connection with the support 11, changing the angle between the fixed frame 12 and the ground. This causes the fixed frame 12 to rotate the workpiece 100, thereby adjusting the tilt angle of the workpiece 100. Thus, the device allows for adjustment of the workpiece 100's tilt angle by rotating the handwheel 75, ensuring the workpiece 100 contacts the abrasive belt wheel at a better tilt angle, thereby guaranteeing the grinding effect of the workpiece 100. This enhances the applicability and practicality of the device.

[0078] The working principle of this application is as follows:

[0079] When using, such as Figure 3 As shown, the device is first placed next to the rotating sanding belt wheel. Then, the handwheel 75 is turned so that the threaded rod 73 is connected to the mating block 72 by the thread, which drives the mating block 72 to move. When the mating block 72 moves, it pushes the fixed frame 12 to rotate through the connecting rod 71, thereby adjusting the tilt angle of the workpiece 100 so that the workpiece 100 can contact the sanding belt wheel at a better tilt angle, thus ensuring the grinding effect of the workpiece 100.

[0080] Then as Figure 11 As shown, the device is in its initial state at this time, with the wrench 54 and slider 2 in the reset state. At the same time, the two sets of second arc plates 642 are far apart from each other, the first gear 41 is not in contact with the first rack 42, and the fourth gear 634 is not in contact with the fourth rack 635. Then the worker can place the workpiece 100 to be polished on the first arc plate 61 and straighten it.

[0081] Then the worker can push the wrench 54, which drives the second gear 52 on the rotating shaft 51 to rotate. During rotation, the second gear 52, through meshing with the second rack 53, drives the second rack 53 and the slider 2 towards the sanding wheel. Figure 12 As shown, the device is in the first stage of operation. During the process of slider 2 approaching the abrasive belt wheel, the fourth gear 634 engages with the fourth rack 635. Then, the fourth gear 634 rotates during its movement through this engagement with the fourth rack 635, thereby driving the second worm 633 to rotate. The second worm 633, through its engagement with the second worm wheel 632, drives the connecting rod 631 and the third gear 62 to rotate. The third gear 62, through its engagement with two sets of third racks 643, drives the two sets of third racks 643 to rotate. The three racks 643 move closer together, thereby bringing the two second arc plates 642 closer together to clamp and fix the workpiece 100. After the fourth gear 634 and the fourth rack 635 finish meshing, the self-locking property of the worm gear transmission can prevent the workpiece 100 from falling off during subsequent operation. At the same time, during and after the engagement of the fourth gear 634 and the fourth rack 635, the first gear 41 never meshes with the first rack 42. That is, in the first stage of the device operation, only the fourth gear 634 will mesh with the fourth rack 635.

[0082] Then the slider 2 continues to move. At this time, the device is in the second stage of operation. The fourth gear 634 is not in contact with the fourth rack 635. At this time, the workpiece 100 is in a clamped state. Then, when the first gear 41 moves to mesh with the first rack 42 and rotates, the first gear 41 will drive several ratchet grooves 453 to rotate. During the rotation, the ratchet grooves 453 push the pawl 451 closer to the first worm 44 and squeeze the spring 452, so that the first gear 41 will not drive the first worm 44 to rotate at the same time. In this way, the workpiece 100 can move closer to the sanding wheel in a straight line.

[0083] After the first gear 41 and the first rack 42 have finished meshing, the slider 2 continues to move the workpiece 100 closer to the abrasive belt wheel, so that the protrusion 200 on the workpiece 100 contacts the rotating abrasive belt wheel. At this time, the device is in the grinding state. Figure 13As shown, the operator can push the wrench 54 to make the protrusion 200 on the workpiece 100 fit tightly against the sanding wheel for grinding. After the protrusion 200 is ground, the operator can pull back the wrench 54. The elastic force of the tension spring 10 assists in driving the wrench 54 and the slider 2 to move and reset automatically. At the same time, when the first gear 41 is not in contact with the first rack 42 during the reset process, the workpiece 100 moves in a straight line and moves away from the sanding wheel during this period. This prevents the workpiece 100 from rotating during the reverse movement, causing other parts of the workpiece 100 to contact the sanding wheel and causing wear to the workpiece 100.

[0084] Then slider 2 continues to move in the reverse direction, causing the first gear 41 to engage with the first rack 42. At this time, the device is in the reset state. Figure 14 As shown, when the first gear 41 meshes and rotates with the first rack 42, it will drive the first worm 44 to rotate through the pawl 451. The first worm 44 will drive the first worm wheel 43 and the rotating column 3 to rotate through the engagement with the first worm wheel 43. This will cause the workpiece 100 on the rotating column 3 to rotate. When the first gear 41 and the first rack 42 finish meshing, the workpiece 100 on the rotating column 3 will rotate 90 degrees, so that the other protrusion 200 corresponds to the sanding wheel. At the same time, the second worm wheel 632, the second worm 633 and the fourth gear 634 will rotate 90 degrees with the rotating column 3.

[0085] At this time, the first gear 41 is not in contact with the first rack 42, and the fourth gear 634 is not in contact with the fourth rack 635. Then the operator can continue to push the wrench 54 to move the slider 2 closer to the sanding wheel. At this time, the device is in the second stage of operation again. Then, as described above, another protrusion 200 on the workpiece 100 will contact the sanding wheel again for grinding. Then the operator pulls back the wrench 54 to rotate the rotating column 3 and the workpiece 100 by 90 degrees. Repeat this back and forth 4 times to grind the four protrusions 200 on the workpiece 100.

[0086] During the fourth resetting of workpiece 100, the operator can pull the wrench 54 to make the fourth gear 634 engage with the fourth rack 635. When the fourth gear 634 engages with the fourth rack 635 in the opposite direction, it will drive the second worm 633 to rotate in the opposite direction, thereby driving the second worm wheel 632, the connecting rod 631 and the third gear 62 to rotate in the opposite direction, so that the two sets of clamping parts 64 move away from each other, so that the operator can take out the workpiece 100.

[0087] In this way, when using the equipment, the operator only needs to install the workpiece 100 on the rotating column 3, and then push the wrench 54 in a large manner to automatically clamp and fix the workpiece 100 for grinding. Then, by pushing and pulling the wrench 54 back and forth in a small manner, the workpiece 100 will automatically rotate during the grinding process, so that the protrusions 200 at different positions can be ground in turn. After grinding, pulling the wrench 54 in a large manner again will automatically release the workpiece 100. In this way, the operator only needs to place the workpiece 100 on the first arc plate 61, and then continuously push and pull the wrench 54 to fix, grind, rotate, grind, rotate until the workpiece is released. This not only facilitates the operation of the operator, saves manpower, speeds up the work efficiency, and ensures the grinding efficiency of the workpiece 100, but also prevents the operator's hand from coming into contact with the workpiece 100 during the grinding of the protrusions 200, reducing safety hazards, and also avoids the operator's fingers from being severely deformed due to pressing the parts for a long time.

[0088] Furthermore, the device employs a purely mechanical mechanism and links them together, which not only facilitates maintenance and allows it to be applied to harsh grinding environments, but also reduces costs and enhances its practicality.

[0089] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0090] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 said element.

[0091] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A grinding device for casting automotive parts, characterized in that, It includes: Base (1); The slider (2) is slidably mounted on the base (1); The rotating column (3) is rotated on the slider (2); The first drive assembly (4) includes a first gear (41), a first rack (42), a first worm gear (43), a first worm (44), and a ratchet assembly (45). The first worm gear (43) is sleeved on the rotating column (3), the first worm (44) is rotatably mounted on the slider (2), the first worm (44) cooperates with the first worm gear (43), the first gear (41) is mounted on the first worm (44), the first rack (42) is mounted on the base (1), the first gear (41) meshes with the first rack (42), and the ratchet assembly (45) is mounted on the first worm (44) and connected to the first gear (41). A push component (5) is mounted on a base (1) and connected to the slider (2) to drive the slider (2) to move; The limiting component (6) includes a first arc-shaped plate (61), a third gear (62), a second drive component (63), and two sets of clamping members (64). The first arc-shaped plate (61) is located at one end of the rotating column (3). The third gear (62) is rotatably mounted inside the rotating column (3). The two sets of clamping members (64) are symmetrically arranged on both sides of the first arc-shaped plate (61). Each clamping member (64) includes a sliding plate (641), a second arc-shaped plate (642), and a third rack (643). The sliding plate (641) slides... The first arc plate (642) is located inside the rotating column (3), and the second arc plate (642) is located on the slide plate (641). The second arc plate (642) corresponds to the first arc plate (61). The third rack (643) is located on the slide plate (641). The two sets of the third racks (643) are located on both sides of the third gear (62). The third gear (62) meshes with the two sets of the third racks (643). The second drive assembly (63) is located on the rotating column (3) and connected to the base (1) to drive the third gear (62) to rotate.

2. The grinding device for casting automotive parts as described in claim 1, characterized in that: The ratchet assembly (45) includes a pawl (451), a spring (452), and a plurality of ratchet grooves (453). The pawl (451) is rotatably mounted on the first worm (44), and the spring (452) is mounted on the first worm (44). The two ends of the spring (452) are respectively connected to the pawl (451) and the first worm (44). The plurality of ratchet grooves (453) are all opened on the inner wall of the first gear (41), and the plurality of ratchet grooves (453) are evenly distributed in a ring on the first gear (41). The pawl (451) cooperates with the ratchet grooves (453).

3. The grinding device for casting automotive parts as described in claim 1, characterized in that: The pushing assembly (5) includes a rotating shaft (51), a second gear (52), a second rack (53), and a wrench (54). The rotating shaft (51) is rotatably mounted on the base (1). The second gear (52) is mounted on the rotating shaft (51). The second rack (53) is mounted on the slider (2). The second rack (53) meshes with the second gear (52). The wrench (54) is located at one end of the rotating shaft (51).

4. The grinding device for casting automotive parts as described in claim 1, characterized in that: The second drive assembly (63) includes a connecting rod (631), a second worm gear (632), a second worm (633), a fourth gear (634), and a fourth rack (635). The connecting rod (631) is rotatably mounted inside the rotating column (3). The connecting rod (631) is connected to the third gear (62). The second worm gear (632) is mounted on the connecting rod (631) and is located at the end of the rotating column (3) away from the first arc-shaped plate (61). (632) is rotatably disposed in the rotating column (3), the second worm (633) is rotatably disposed in the rotating column (3), the second worm (633) is engaged with the second worm wheel (632), the fourth gear (634) is disposed on the second worm (633), the fourth rack (635) is disposed on the base (1), the fourth rack (635) is engaged with the fourth gear (634), and the fourth rack (635) is located on the side of the first rack (42) away from the first arc plate (61).

5. The grinding device for casting automotive parts as described in claim 4, characterized in that: The base (1) includes a support (11), a fixed frame (12) and a plurality of first guide rods (13). The fixed frame (12) is disposed on the support (11), and the plurality of first guide rods (13) are disposed on the fixed frame (12). The first rack (42), the fourth rack (635) and the rotating shaft (51) are disposed on the fixed frame (12). The slider (2) includes a slider body (21) and a plurality of guide sleeves (22). The plurality of guide sleeves (22) are all disposed on the slider body (21) and are all sleeved on a plurality of first guide rods (13). The guide sleeves (22) are slidably connected to the first guide rods (13).

6. The grinding device for casting automotive parts as described in claim 5, characterized in that: The end of the fixed frame (12) away from the first arc plate (61) is hinged to the support (11); The grinding device also includes an adjustment component (7), which includes a connecting rod (71), a mating block (72), a threaded rod (73), a second guide rod (74), and a handwheel (75). The threaded rod (73) is rotatably mounted on the support (11), and the handwheel (75) is located at the end of the threaded rod (73) away from the first arc plate (61). The mating block (72) is sleeved on the threaded rod (73) and threadedly connected to it. The second guide rod (74) is located on the support (11) and passes through the mating block (72) and is slidably connected to it. The two ends of the connecting rod (71) are respectively hinged to the mating block (72) and the fixed frame (12).

7. The grinding device for casting automotive parts as described in claim 1, characterized in that: Rubber pads (8) are provided on the opposite side of the two second arc-shaped plates (642).

8. A grinding device for casting automotive parts as described in claim 4, characterized in that: The slider (2) is fitted with a housing (9), which corresponds to the first gear (41) and the fourth gear (634).

9. A grinding device for casting automotive parts as described in claim 5, characterized in that: The fixed frame (12) is provided with a tension spring (10), and the two ends of the tension spring (10) are respectively connected to the fixed frame (12) and the wrench (54).

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