A cylindrical grinding device for automobile accessory machining

Abstract

The application relates to the technical field of automobile accessory machining, in particular to a cylindrical grinding device for automobile accessory machining, which comprises a wheel-changing frame plate arranged in the interior of a device main body, a ring-throwing main shaft and a milling main shaft are arranged on one side of the wheel-changing frame plate, positioning blocks are arranged on the surfaces of the ring-throwing main shaft and the milling main shaft, a threaded sleeve is connected to the surface of each positioning block, a threaded rod is screwed in the interior of each threaded sleeve, a lower moving plate and an upper moving plate are arranged on the other side of the wheel-changing frame plate, and the threaded rod is rotatably arranged between the lower moving plate and the upper moving plate. The ring-throwing main shaft and the milling main shaft arranged on one side of the wheel-changing frame plate can be changed, the positioning blocks on the surface of the ring-throwing main shaft are arranged in the interior of a positioning groove when the workpiece is milled to the target size by the milling main shaft according to a set program, the positioning blocks on the surface of the milling main shaft are arranged in the interior of a receiving groove, the automatic switching of the ring-throwing main shaft and the milling main shaft is realized, and the problem of repeated positioning of the workpiece in the machining process is avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, specifically to an external cylindrical grinding device for automotive parts processing. Background Technology

[0002] External cylindrical grinding equipment for automotive parts processing refers to machine tool equipment specifically used for precision grinding of the outer cylindrical surface of automotive shaft and sleeve parts. Its core function is to remove excess material through the relative movement of the grinding components and the workpiece to obtain high-precision geometric dimensions (roundness, cylindricity) and surface finish (Ra value), meeting the assembly requirements of high interchangeability and wear resistance of automotive parts.

[0003] Currently, the mainstream processing method is to first process the workpiece blank to close to the target size on a grinding machine using diamond grinding wheels, then remove the workpiece, clean it, and transfer it to a ring polisher, where polishing is performed using polishing molds and polishing liquid to correct surface shape errors and obtain an ultra-smooth surface.

[0004] However, the workpiece is prone to repeated positioning errors during the two clamping processes, which affects the final surface accuracy. Furthermore, the process of transferring, reclamping, and aligning the workpiece is time-consuming and labor-intensive, affecting work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an external cylindrical grinding apparatus for processing automotive parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An external cylindrical grinding apparatus for machining automotive parts includes:

[0008] The device body has a rotating frame plate inside, and the surface of the rotating frame plate is provided with positioning grooves and receiving grooves. A ring-polishing spindle and a milling spindle are provided on one side of the rotating frame plate.

[0009] Both the circumferential polishing spindle and the milling spindle are provided with positioning blocks on their surfaces. The positioning blocks are used to guide the positions of the circumferential polishing spindle and the milling spindle on the surface of the rotating frame plate. The surface of the positioning block is connected to a threaded sleeve, and a threaded rod is screwed into the inside of the threaded sleeve.

[0010] A lower moving plate and an upper moving plate are provided on the other side of the rotating frame plate, and the threaded rod is rotatably disposed between the lower moving plate and the upper moving plate.

[0011] Preferably, the main body of the device is provided with a first moving mechanism, which controls the rotation frame plate to move along the X-axis. A second moving mechanism is connected above the first moving mechanism, which controls the rotation frame plate to move along the Y-axis. A third moving mechanism is connected to one side of the second moving mechanism, which controls the rotation frame plate to move along the Z-axis. The main body of the device is provided with a workpiece clamp, which is located below the rotation frame plate.

[0012] Preferably, the rotating frame plate is installed below the third moving mechanism, and a lower fixed slide rail and an upper fixed slide rail are fixedly installed on the surface of the rotating frame plate. The positioning groove and the receiving groove are disposed between the lower fixed slide rail and the upper fixed slide rail.

[0013] Preferably, the receiving slot is provided in two sets, and the two sets of receiving slots are respectively located on both sides of the positioning slot. A transition slot is provided between the receiving slot and the positioning slot, and the transition slot is used to connect the positioning slot and the receiving slot.

[0014] Preferably, the positioning block has a U-shaped channel inside, one end of the U-shaped channel is connected to a connecting nozzle, the other end of the U-shaped channel is connected to a spray nozzle, and the positioning block has a piston groove inside.

[0015] Preferably, the piston groove extends through the U-shaped channel, and a piston stop is slidably disposed inside the piston groove. The piston stop is used to block the connection of the U-shaped channel. A compression spring is disposed above the piston stop, and a pressure-bearing column is fixedly connected below the piston stop. The bottom end of the pressure-bearing column extends to the outside of the positioning block.

[0016] Preferably, a lower bearing seat is fixedly provided on the top surface of the lower movable plate, the lower movable plate is rotatably connected to the threaded rod through the lower bearing seat, a lower movable slide rail is fixedly installed on one side of the lower movable plate, and the lower movable plate is connected to the lower fixed slide rail through the lower movable slide rail.

[0017] Preferably, the upper movable plate is an "L"-shaped plate structure. An upper bearing seat is fixedly provided on the bottom surface of the upper movable plate. The upper movable plate is rotatably connected to the threaded rod through the upper bearing seat. The top end of the threaded rod passes through the upper movable plate and is fixedly connected to a synchronous pulley. A belt groove is opened on one side of the upper movable plate. An upper movable slide rail is fixedly installed on one side of the upper movable plate. The upper movable plate is connected to the upper fixed slide rail through the upper movable slide rail. A servo motor is fixedly installed on one side of the upper movable plate.

[0018] Preferably, the belt groove is provided corresponding to the synchronous pulley, the surface of the synchronous pulley is provided with a synchronous belt, and one side of the synchronous belt passes through the belt groove.

[0019] Preferably, the output shaft of the servo motor is fixedly mounted with the synchronous pulley, and the output shaft of the servo motor is connected to the synchronous belt through the synchronous pulley.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting interchangeable ring polishing spindle and milling spindle on one side of the rotating frame plate, when the milling spindle mills the workpiece to near the target size according to the set program, the ring polishing spindle moves downward and upward simultaneously driven by the servo motor. When the ring polishing spindle reaches the top of the transition groove on one side of the positioning groove, the milling spindle reaches the bottom of the transition groove on the other side of the positioning groove. At this time, the positioning block on the surface of the ring polishing spindle and the side wall of the transition groove squeeze each other, pushing the positioning block on the surface of the milling spindle into the interior of the transition groove on the other side. Finally, the positioning block on the surface of the ring polishing spindle enters the interior of the positioning groove, and the positioning block on the surface of the milling spindle enters the interior of the receiving groove. This realizes the automatic switching between the ring polishing spindle and the milling spindle, avoids the problem of repeated workpiece positioning during the processing, ensures the processing accuracy, and improves work efficiency.

[0022] 2. By setting a U-shaped channel and a piston stop inside the positioning block, when the positioning block enters the positioning groove, the pressure column is squeezed and drives the piston stop to move upward, so that the U-shaped channel is connected. When the positioning block leaves the positioning groove, the piston stop blocks the U-shaped channel under the rebound action of the compression spring. This ensures that polishing fluid or coolant can only be sprayed when the circumferential polishing spindle or milling spindle enters the working position, and cannot be sprayed when it leaves the working position, thus avoiding the accidental spraying of polishing fluid and coolant during operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the mounting structure of the ring polishing spindle and the milling spindle of the present invention;

[0025] Figure 3 This is a schematic diagram of the rotating frame plate structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the positioning block of the present invention;

[0027] Figure 5 This is a schematic diagram of the upper movable plate structure of the present invention;

[0028] Figure 6This is a schematic diagram of the lower movable plate structure of the present invention.

[0029] In the diagram: 1. Main body of the device; 11. First moving mechanism; 12. Second moving mechanism; 13. Third moving mechanism; 2. Rotating frame plate; 21. Lower fixed slide rail; 22. Upper fixed slide rail; 23. Positioning groove; 24. Transition groove; 25. Receiving groove; 3. Circular polishing spindle; 4. Milling spindle; 5. Workpiece fixture; 6. Positioning block; 61. Threaded sleeve; 62. U-shaped channel; 63. Piston groove; 64. Piston stop; 65. Pressure bearing column; 66. Compression spring; 67. Connecting nozzle; 68. Spray nozzle; 69. Threaded rod; 691. Synchronous pulley; 692. Synchronous belt; 7. Lower moving plate; 71. Lower bearing seat; 72. Lower moving slide rail; 8. Upper moving plate; 81. Belt groove; 82. Upper bearing seat; 83. Upper moving slide rail; 9. Servo motor. Detailed Implementation

[0030] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0031] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0032] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two connected entities do not establish a connection relationship through an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0034] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Please see the appendix Figure 1 To be continued Figure 6 As shown, the present invention provides an external cylindrical grinding apparatus for processing automotive parts, comprising:

[0036] The device body 1 contains a rotating frame plate 2. A first moving mechanism 11 is also located inside the device body 1, controlling the rotating frame plate 2 to move along the X-axis. A second moving mechanism 12 is connected above the first moving mechanism 11, controlling the rotating frame plate 2 to move along the Y-axis. A third moving mechanism 13 is connected to one side of the second moving mechanism 12, controlling the rotating frame plate 2 to move along the Z-axis. A workpiece clamp 5 is located inside the device body 1, positioned below the rotating frame plate 2. 2. Installed below the third moving mechanism 13, the rotating frame plate 2 has a lower fixed slide rail 21 and an upper fixed slide rail 22 fixedly installed on its surface. The positioning groove 23 and the receiving groove 25 are disposed between the lower fixed slide rail 21 and the upper fixed slide rail 22. The rotating frame plate 2 has a positioning groove 23 and a receiving groove 25 on its surface. There are two sets of receiving grooves 25, which are located on both sides of the positioning groove 23. A transition groove 24 is provided between the receiving groove 25 and the positioning groove 23. The transition groove 24 is used to connect the positioning groove 23 and the receiving groove 25. A ring-polishing spindle 3 and a milling spindle 4 are provided on one side of the rotating frame plate 2.

[0037] Positioning blocks 6 are provided on the surfaces of the circumferential polishing spindle 3 and the milling spindle 4. The positioning blocks 6 are used to guide the positions of the circumferential polishing spindle 3 and the milling spindle 4 on the surface of the rotating frame plate 2. A U-shaped channel 62 is opened inside the positioning block 6. One end of the U-shaped channel 62 is connected to a connecting nozzle 67, and the other end of the U-shaped channel 62 is connected to a spray nozzle 68. A piston groove 63 is opened inside the positioning block 6, and the piston groove 63 penetrates the U-shaped channel 62. A piston stop 64 is slidably arranged inside the piston groove 63. The piston stop 64 is used to block the communication of the U-shaped channel 62. A compression spring 66 is provided above the piston stop 64, and a pressure-bearing column 65 is fixedly connected below the piston stop 64. The bottom end of the pressure-bearing column 65 extends to the outside of the positioning block 6. A threaded sleeve 61 is connected to the surface of the positioning block 6, and a threaded rod 69 is screwed into the inside of the threaded sleeve 61.

[0038] On the other side of the rotating frame plate 2, a lower moving plate 7 and an upper moving plate 8 are provided. The threaded rod 69 is rotatably disposed between the lower moving plate 7 and the upper moving plate 8. A lower bearing seat 71 is fixedly disposed on the top surface of the lower moving plate 7. The lower moving plate 7 is rotatably connected to the threaded rod 69 through the lower bearing seat 71. A lower moving slide rail 72 is fixedly installed on one side of the lower moving plate 7. The lower moving plate 7 is connected to the lower fixed slide rail 21 through the lower moving slide rail 72. The upper moving plate 8 has an "L"-shaped plate structure. An upper bearing seat 82 is fixedly disposed on the bottom surface of the upper moving plate 8. The upper moving plate 8 is rotatably connected to the threaded rod 69 through the upper bearing seat 82. The top of the threaded rod 69... A synchronous pulley 691 is fixedly connected to the upper movable plate 8. A belt groove 81 is provided on one side of the upper movable plate 8. An upper movable slide rail 83 is fixedly installed on one side of the upper movable plate 8. The upper movable plate 8 is connected to the upper fixed slide rail 22 through the upper movable slide rail 83. A servo motor 9 is fixedly installed on one side of the upper movable plate 8. The belt groove 81 is correspondingly arranged with the synchronous pulley 691. A synchronous belt 692 is provided on the surface of the synchronous pulley 691. One side of the synchronous belt 692 passes through the belt groove 81. The output shaft of the servo motor 9 is fixedly installed with the synchronous pulley 691, and the output shaft of the servo motor 9 is connected to the synchronous belt 692 through the synchronous pulley 691.

[0039] This invention proposes an external cylindrical grinding device for processing automotive parts. In use, the workpiece blank to be processed is installed inside the workpiece fixture 5. Then, a set program controls the movement of the first moving mechanism 11, the second moving mechanism 12, and the third moving mechanism 13, which in turn moves the rotating frame plate 2. The rotating frame plate 2 then drives the milling spindle 4 to perform milling operations on the workpiece according to the set program. When the workpiece approaches the target size, a servo motor 9 drives two sets of synchronous pulleys 691 to rotate, causing the circumferential grinding spindle 3 to move downwards while the milling spindle 4 moves upwards. When the circumferential grinding spindle 3 reaches one side of the positioning groove 23... When the milling spindle 4 reaches the top of the transition groove 24 on the other side of the positioning groove 23, the positioning block 6 on the surface of the circumferential polishing spindle 3 and the side wall of the transition groove 24 press against each other, pushing the positioning block 6 on the surface of the milling spindle 4 into the interior of the transition groove 24 on the other side. Finally, the positioning block 6 on the surface of the circumferential polishing spindle 3 enters the interior of the positioning groove 23, and the positioning block 6 on the surface of the milling spindle 4 enters the interior of the receiving groove 25, realizing the automatic switching between the circumferential polishing spindle 3 and the milling spindle 4, avoiding the problem of repeated workpiece positioning during the processing, ensuring the processing accuracy, and improving work efficiency.

[0040] As a further improvement of the present invention, by setting a U-shaped channel 62 and a piston stop 64 inside the positioning block 6, when the positioning block 6 enters the positioning groove 23, the pressure column 65 is squeezed and drives the piston stop 64 to move upward, so that the U-shaped channel 62 is connected. When the positioning block 6 leaves the positioning groove 23, the piston stop 64 blocks the U-shaped channel 62 under the rebound action of the compression spring 66. Thus, polishing liquid or coolant can only be sprayed when the circumferential polishing spindle 3 or milling spindle 4 enters the working position, and cannot be sprayed when it leaves the working position, thus avoiding the accidental spraying of polishing liquid and coolant during the working process.

[0041] Working Principle: The external cylindrical grinding device for automotive parts processing proposed in this invention involves installing the workpiece blank into the workpiece fixture 5. Then, a set program controls the movement of the first moving mechanism 11, the second moving mechanism 12, and the third moving mechanism 13, which in turn moves the rotating frame plate 2. The rotating frame plate 2 then drives the milling spindle 4 to perform milling operations on the workpiece according to the set program. When the workpiece approaches the target size, the servo motor 9 drives two sets of synchronous pulleys 691 to rotate, causing the circular grinding spindle 3 to move downwards while the milling spindle 4 moves downwards. Moving upwards, when the circumferential polishing spindle 3 reaches the top of the transition groove 24 on one side of the positioning groove 23, the milling spindle 4 reaches the bottom of the transition groove 24 on the other side of the positioning groove 23. At this time, the positioning block 6 on the surface of the circumferential polishing spindle 3 and the side wall of the transition groove 24 squeeze each other, pushing the positioning block 6 on the surface of the milling spindle 4 into the interior of the transition groove 24 on the other side. Finally, the positioning block 6 on the surface of the circumferential polishing spindle 3 enters the interior of the positioning groove 23, and the positioning block 6 on the surface of the milling spindle 4 enters the interior of the receiving groove 25, realizing the automatic switching between the circumferential polishing spindle 3 and the milling spindle 4.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0043] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An external cylindrical grinding device for processing automotive parts, characterized in that, include: The device body (1) has a rotating frame plate (2) inside. The rotating frame plate (2) has a positioning groove (23) and a receiving groove (25) on its surface. The rotating frame plate (2) has a circumferential polishing spindle (3) and a milling spindle (4) on one side. The surfaces of the circumferential polishing spindle (3) and the milling spindle (4) are provided with positioning blocks (6). The positioning blocks (6) are used to guide the positions of the circumferential polishing spindle (3) and the milling spindle (4) on the surface of the rotating frame plate (2). The surface of the positioning blocks (6) is connected with a threaded sleeve (61), and a threaded rod (69) is screwed into the inside of the threaded sleeve (61). The other side of the rotating frame plate (2) is provided with a lower moving plate (7) and an upper moving plate (8), and the threaded rod (69) is rotatably disposed between the lower moving plate (7) and the upper moving plate (8).

2. The external cylindrical grinding apparatus for processing automotive parts according to claim 1, characterized in that, The device body (1) is provided with a first moving mechanism (11) inside. The first moving mechanism (11) is used to control the rotating frame plate (2) to move along the X-axis direction. A second moving mechanism (12) is connected above the first moving mechanism (11). The second moving mechanism (12) is used to control the rotating frame plate (2) to move along the Y-axis direction. A third moving mechanism (13) is connected to one side of the second moving mechanism (12). The third moving mechanism (13) is used to control the rotating frame plate (2) to move along the Z-axis direction. The device body (1) is provided with a workpiece clamp (5) inside. The workpiece clamp (5) is located below the rotating frame plate (2).

3. The external cylindrical grinding apparatus for processing automotive parts according to claim 2, characterized in that, The rotating frame plate (2) is installed below the third moving mechanism (13). The surface of the rotating frame plate (2) is fixedly equipped with a lower fixed slide rail (21) and an upper fixed slide rail (22). The positioning groove (23) and the receiving groove (25) are disposed between the lower fixed slide rail (21) and the upper fixed slide rail (22).

4. The external cylindrical grinding apparatus for processing automotive parts according to claim 1, characterized in that, The receiving slot (25) is provided in two sets, and the two sets of receiving slots (25) are respectively located on both sides of the positioning slot (23). A transition slot (24) is provided between the receiving slot (25) and the positioning slot (23), and the transition slot (24) is used to connect the positioning slot (23) and the receiving slot (25).

5. The external cylindrical grinding apparatus for processing automotive parts according to claim 1, characterized in that, The positioning block (6) has a U-shaped channel (62) inside, one end of the U-shaped channel (62) is connected to a connecting nozzle (67), the other end of the U-shaped channel (62) is connected to a spray nozzle (68), and the positioning block (6) has a piston groove (63) inside.

6. The external cylindrical grinding apparatus for processing automotive parts according to claim 5, characterized in that, The piston groove (63) passes through the U-shaped channel (62). A piston stop (64) is slidably arranged inside the piston groove (63). The piston stop (64) is used to block the connection of the U-shaped channel (62). A compression spring (66) is arranged above the piston stop (64). A pressure-bearing column (65) is fixedly connected below the piston stop (64). The bottom end of the pressure-bearing column (65) extends to the outside of the positioning block (6).

7. The external cylindrical grinding apparatus for processing automotive parts according to claim 3, characterized in that, The lower moving plate (7) is fixedly provided with a lower bearing seat (71) on its top surface. The lower moving plate (7) is rotatably connected to the threaded rod (69) through the lower bearing seat (71). A lower moving slide rail (72) is fixedly installed on one side of the lower moving plate (7). The lower moving plate (7) is connected to the lower fixed slide rail (21) through the lower moving slide rail (72).

8. The external cylindrical grinding apparatus for processing automotive parts according to claim 3, characterized in that, The upper movable plate (8) is an "L" shaped plate structure. An upper bearing seat (82) is fixedly provided on the bottom surface of the upper movable plate (8). The upper movable plate (8) is rotatably connected to the threaded rod (69) through the upper bearing seat (82). The top end of the threaded rod (69) passes through the upper movable plate (8) and is fixedly connected to a synchronous pulley (691). A belt groove (81) is provided on one side of the upper movable plate (8). An upper movable slide rail (83) is fixedly installed on one side of the upper movable plate (8). The upper movable plate (8) is connected to the upper fixed slide rail (22) through the upper movable slide rail (83). A servo motor (9) is fixedly installed on one side of the upper movable plate (8).

9. The external cylindrical grinding apparatus for processing automotive parts according to claim 8, characterized in that, The belt groove (81) is correspondingly provided with the synchronous pulley (691), and the surface of the synchronous pulley (691) is provided with a synchronous belt (692), with one side of the synchronous belt (692) passing through the belt groove (81).

10. The external cylindrical grinding apparatus for processing automotive parts according to claim 9, characterized in that, The output shaft of the servo motor (9) is fixedly mounted with the synchronous pulley (691), and the output shaft of the servo motor (9) is connected to the synchronous belt (692) through the synchronous pulley (691).

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