Polishing device for automobile part machining

Abstract

The invention discloses a grinding device for automobile part machining, and relates to the technical field of automobile part machining, the grinding device comprises a three-dimensional moving working frame and a grinding disc, the three-dimensional moving working frame is provided with a working plate and a working table, and the grinding device further comprises a constant pressure assembly arranged on the working plate and used for applying constant pressure to the grinding disc; the constant-pressure assembly comprises a plum blossom plate arranged on one side of the working plate, the side, away from the grinding disc, of the plum blossom plate is connected with a bottom plate through two supporting rods, the other side of the bottom plate is fixedly connected with a mounting rod, and the side wall of the mounting rod is sleeved with a plurality of balance weight rings. According to the grinding device for automobile part machining, through the arrangement of the constant-pressure assembly, in the automobile part grinding process of the grinding disc, constant extrusion force can be kept on automobile parts all the time, and then uniform pressure and cutting depth in the automobile part grinding process are kept.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a grinding device for automobile parts processing. Background Art

[0002] Various surface defects will appear in auto parts during the production process, such as scratches, pits, burrs, etc. These defects not only affect the appearance of the accessories, but may also affect their service life and performance. Therefore, these surface defects need to be removed by grinding, making the surface of the accessories smoother and flatter, and improving the appearance quality. At the same time, grinding can improve the surface finish of auto parts and make them more beautiful. The high-gloss surface is not only beautiful, but also can reduce the adhesion of dust and dirt, making it easier to clean and maintain.

[0003] In the prior art, during the grinding of automobile parts, the grinding operation is achieved by using the extrusion and rotational force of the grinding disc on the automobile parts. Since the grinding disc is driven to rotate by a driving motor, vibration will occur during the rotation of the motor. The vibration will generate unbalanced forces. These unbalanced forces will act on the grinding disc, causing it to be subjected to thrust or tension in the axial direction. When the unbalanced force exceeds a certain limit, it will cause axial movement of the grinding disc. The axial movement of the grinding disc will cause the grinding trajectory on the surface of the automobile part to be unstable, making it difficult to maintain uniform pressure and cutting depth. This makes the grinding degree of different areas on the surface of the part inconsistent, resulting in unevenness, which seriously affects the surface flatness and further affects the quality of the grinding of the automobile parts. For this reason, we propose a grinding device for processing automobile parts. Summary of the invention

[0004] The object of the present invention is to provide a grinding device for automobile parts processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A grinding device for automobile parts processing, comprising a three-dimensional movable work frame and a grinding disc, wherein the three-dimensional movable work frame is provided with a work plate and a work table, and further comprising a constant pressure component arranged on the work plate for applying a constant pressure to the grinding disc;

[0006] The constant pressure assembly includes a plum blossom plate arranged on one side of the working plate, the working plate is provided with a connecting assembly for connecting the plum blossom plate, the grinding disc is connected to the plum blossom plate by bolts, the side of the plum blossom plate away from the grinding disc is connected to a base plate by two supporting rods, the other side of the base plate is fixedly connected to a mounting rod, the side wall of the mounting rod is provided with a plurality of counterweight rings, the mounting rod is provided with a fixing assembly for fixing each counterweight ring, and the working plate is provided with a driving assembly for driving the grinding disc.

[0007] Preferably, the fixing assembly comprises a threaded strip opened on a side wall of the mounting rod, and the threaded strip is threadedly connected with a threaded ring.

[0008] Preferably, the connecting assembly includes a connecting plate fixedly connected to the side of the working plate close to the grinding disc, the connecting plate is provided with a connecting hole, the connecting hole is rotatably connected to a connecting ring, the side wall of the connecting ring is slidably connected to a plurality of T-rods, and one end of each of the T-rods is connected to the plum blossom plate.

[0009] Preferably, the driving assembly includes a fixed plate fixedly connected to the side of the working plate close to the connecting plate, the side of the fixed plate close to the grinding disc is connected to a circular plate through a telescopic assembly, the side of the circular plate away from the fixed plate is fixedly connected to a plurality of plug plates, a side of the mounting rod close to the fixed plate is provided with a plurality of slots, each of the slots is matched with the plug plate, the fixed plate is rotatably connected to a driving rod, a motor is provided on the side of the fixed plate away from the circular plate, and the output end of the motor is connected to the driving rod.

[0010] Preferably, the telescopic assembly includes a telescopic tube arranged on a side of the fixed plate close to the circular plate, the end of the driving rod away from the motor is connected to the telescopic tube, the telescopic tube is connected to the telescopic plate through a guide assembly, the telescopic plate is fixedly connected to a telescopic rod on a side away from the fixed plate, one end of the telescopic rod is connected to the circular plate, and a first spring is sleeved on the side wall of the telescopic rod located inside the telescopic tube, and the two ends of the first spring are respectively connected to the inner wall of the telescopic tube and the telescopic plate.

[0011] Preferably, the guide assembly includes two symmetrically arranged guide holes opened on the side wall of the telescopic tube, the two guide holes are slidably connected with guide plates, the opposite ends of the two guide plates are connected to the telescopic plate, and the telescopic tube is provided with a limiting assembly for limiting the two guide plates.

[0012] Preferably, the limiting assembly comprises two fixed boxes fixedly connected to the side walls of the telescopic tube, the two fixed boxes are connected to the limiting plates through an extrusion assembly, the two limiting plates are provided with inclined surfaces on one side close to the circular plate, and the telescopic tube is provided with a pushing assembly for pushing the two limiting plates.

[0013] Preferably, the extrusion assembly includes an extrusion plate slidably connected to the fixed box, the side of the limit plate away from the guide plate is connected to the extrusion plate, the other side of the extrusion plate is fixedly connected to a second spring, and the other end of the second spring is connected to the inner wall of the fixed box.

[0014] Preferably, the pushing assembly includes a pushing arc ring slidably connected to the side wall of the telescopic tube, the pushing arc ring is connected to the side wall of the telescopic tube through an elastic assembly, two pushing rods are fixedly connected to the side of the pushing arc ring close to the fixed box, an oblique groove is provided on the side of the limiting plate close to the pushing arc ring, and the two pushing rods are slidably connected to the oblique groove at one end away from the pushing arc ring.

[0015] Preferably, the elastic component includes two groups of two symmetrically arranged operating plates fixedly connected to the side walls of the telescopic tube, a fixed rod is fixedly connected between the two opposite operating plates, the push arc ring is slidably connected to the two fixed rods, and the side walls of the two fixed rods are sleeved with a third spring, and the two ends of the two third springs are respectively connected to the push arc ring and the operating plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The grinding device for automobile parts processing of the present invention, through the setting of the constant pressure component, enables the grinding disc to always maintain a constant extrusion pressure on the automobile parts during the grinding process of the automobile parts, thereby maintaining a uniform pressure and cutting depth during the grinding process of the automobile parts, and under the action of the driving component, the grinding disc and the motor driving force form a socket connection relationship, thereby ensuring the driving force of the grinding disc while reducing the impact of the motor vibration on the grinding disc, thereby reducing the risk of axial movement of the grinding disc caused by the vibration of the motor, thereby improving the quality of grinding of automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the constant voltage component of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation structure of the grinding disc of the present invention;

[0023] Figure 6 This is a schematic diagram of the connecting hole structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the structural relationship of the drive components of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the telescopic assembly of the present invention;

[0026] Fig. 9 for Figure 7 Enlarged view of point A in the middle.

[0027] In the figure: 101, three-dimensional mobile work frame; 102, work plate; 103, workbench; 104, grinding disc; 201, plum blossom plate; 202, support rod; 203, bottom plate; 204, mounting rod; 205, counterweight ring; 206, bolt; 301, threaded strip; 302, threaded ring; 401, connecting hole; 402, connecting ring; 403, T-bar; 404, connecting plate; 501, fixing plate; 502, round plate; 503, plug plate; 504, electric Machine; 505, driving rod; 506, slot; 601, telescopic rod; 602, telescopic plate; 603, first spring; 604, telescopic tube; 701, guide hole; 702, guide plate; 801, fixed box; 802, limit plate; 803, inclined plane; 901, extrusion plate; 902, second spring; 1001, push arc ring; 1002, push rod; 1003, inclined slot; 1101, operating panel; 1102, fixed rod; 1103, third spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1-Figure 9 , a grinding device for automobile parts processing shown in the figure includes a three-dimensional movable work frame 101 and a grinding disc 104, the three-dimensional movable work frame 101 is provided with a working plate 102 and a working table 103, and also includes a constant pressure component arranged on the working plate 102 for applying a constant pressure to the grinding disc 104;

[0031] The constant pressure assembly includes a plum blossom plate 201 arranged on one side of the working plate 102, the working plate 102 is provided with a connecting assembly for connecting the plum blossom plate 201, the grinding disc 104 is connected to the plum blossom plate 201 through a bolt 206, the plum blossom plate 201 is connected to a bottom plate 203 on one side away from the grinding disc 104 through two support rods 202, the other side of the bottom plate 203 is fixedly connected with a mounting rod 204, a plurality of counterweight rings 205 are sleeved on the side wall of the mounting rod 204, the mounting rod 204 is provided with a fixing assembly for fixing each counterweight ring 205, and the working plate 102 is provided with a driving assembly for driving the grinding disc 104;

[0032] It should be noted here that: through the setting of the constant pressure component, the grinding disc 104 can always maintain a constant extrusion pressure on the auto parts during the grinding process of the auto parts, thereby maintaining a uniform pressure and cutting depth during the grinding process of the auto parts, and under the action of the driving component, the grinding disc 104 and the driving force of the motor 504 form a socket connection relationship, thereby ensuring the driving force of the grinding disc 104 while reducing the impact of the vibration of the motor 504 on the grinding disc 104, thereby reducing the risk of axial movement of the grinding disc 104 caused by the vibration of the motor 504, thereby improving the quality of grinding of auto parts.

[0033] It should be noted that the three-dimensional movable work frame 101 can move in up and down, left and right, and front and back directions.

[0034] See also Figure 5 , the fixing assembly shown in the figure includes a threaded strip 301 opened on the side wall of the mounting rod 204, and the threaded strip 301 is threadedly connected with a threaded ring 302;

[0035] It should be noted here that: through the setting of the fixing component, after an appropriate number of counterweight rings 205 are sleeved onto the side wall of the mounting rod 204, the threaded ring 302 is driven to move on the side wall of the mounting rod 204 by utilizing the threaded engagement transmission action of the threaded ring 302 and the threaded strip 301 on the side wall of the mounting rod 204. When the threaded ring 302 abuts against the side of the counterweight ring 205, the rotation of the threaded ring 302 is stopped, and then the tightening effect of the threaded ring 302 is utilized to achieve the installation and fixation of the counterweight ring 205.

[0036] See also Figure 3 and Figure 4 The connecting assembly shown in the figure includes a connecting plate 404 fixedly connected to the side of the working plate 102 close to the grinding disc 104, the connecting plate 404 is provided with a connecting hole 401, the connecting hole 401 is rotatably connected to a connecting ring 402, and the side wall of the connecting ring 402 is slidably connected to a plurality of T-shaped rods 403, and one end of each T-shaped rod 403 is connected to the plum blossom plate 201;

[0037] It should be noted here that the connection assembly is provided to provide support and limitation for the installation of each counterweight ring 205 .

[0038] See also Figure 7 and Figure 8The driving assembly shown in the figure includes a fixed plate 501 fixedly connected to the side of the working plate 102 close to the connecting plate 404, a circular plate 502 is connected to the side of the fixed plate 501 close to the grinding disc 104 through a telescopic assembly, a plurality of plug-in plates 503 are fixedly connected to the side of the circular plate 502 away from the fixed plate 501, a plurality of slots 506 are provided on the side of the mounting rod 204 close to the fixed plate 501, each slot 506 is matched with the plug-in plate 503, a driving rod 505 is rotatably connected to the fixed plate 501, a motor 504 is provided on the side of the fixed plate 501 away from the circular plate 502, and an output end of the motor 504 is connected to the driving rod 505;

[0039] It should be noted here that: the drive assembly is arranged to drive the grinding disc 104 to rotate, thereby achieving the grinding operation of the automobile parts.

[0040] See also Figure 8 The telescopic assembly shown in the figure includes a telescopic tube 604 arranged on the side of the fixed plate 501 close to the circular plate 502, the end of the driving rod 505 away from the motor 504 is connected to the telescopic tube 604, the telescopic tube 604 is connected to the telescopic plate 602 through a guide assembly, the telescopic plate 602 is fixedly connected to the side away from the fixed plate 501 with a telescopic rod 601, one end of the telescopic rod 601 is connected to the circular plate 502, and the side wall of the telescopic rod 601 located inside the telescopic tube 604 is sleeved with a first spring 603, and the two ends of the first spring 603 are respectively connected to the inner wall of the telescopic tube 604 and the telescopic plate 602;

[0041] It should be noted here that the telescopic component is provided to provide a telescopic space for the movement of the plug board 503 .

[0042] See also Figure 8 The guide assembly shown in the figure includes two guide holes 701 symmetrically arranged on the side wall of the telescopic tube 604, the two guide holes 701 are slidably connected with guide plates 702, the opposite ends of the two guide plates 702 are connected to the telescopic plate 602, and the telescopic tube 604 is provided with a limiting assembly for limiting the two guide plates 702;

[0043] It should be noted that the guide assembly is provided to provide guidance and limit for the movement of the plug plate 503 , and at the same time, the rotational force of the motor 504 can be transmitted to the telescopic tube 604 through the guide hole 701 and the guide plate 702 .

[0044] See also Figure 7 and Fig. 9The limiting assembly shown in the figure includes two fixed boxes 801 fixedly connected to the side wall of the telescopic tube 604, the two fixed boxes 801 are connected to the limiting plates 802 through an extrusion assembly, and the two limiting plates 802 are provided with inclined surfaces 803 on one side close to the circular plate 502, and the telescopic tube 604 is provided with a pushing assembly for pushing the two limiting plates 802;

[0045] It should be noted here that the limiting component is provided to limit and block the plugging plate 503 after the plugging plate 503 is separated from the slot 506 , thereby facilitating the installation of the counterweight ring 205 .

[0046] See also Figure 7 and Fig. 9 The extrusion assembly shown in the figure includes an extrusion plate 901 slidably connected to the fixed box 801, a side of the limit plate 802 away from the guide plate 702 is connected to the extrusion plate 901, and the other side of the extrusion plate 901 is fixedly connected to a second spring 902, and the other end of the second spring 902 is connected to the inner wall of the fixed box 801;

[0047] It should be noted here that: by setting the extrusion component, a guiding and limiting function is provided for the movement of the limiting plate 802.

[0048] See also Figure 7 and Fig. 9 The pushing assembly shown in the figure includes a pushing arc ring 1001 slidably connected to the side wall of the telescopic tube 604, the pushing arc ring 1001 is connected to the side wall of the telescopic tube 604 through an elastic assembly, and two pushing rods 1002 are fixedly connected to the side of the pushing arc ring 1001 close to the fixed box 801, and an inclined groove 1003 is provided on the side of the limiting plate 802 close to the pushing arc ring 1001, and one end of the two pushing rods 1002 away from the pushing arc ring 1001 is slidably connected to the inclined groove 1003;

[0049] It should be noted here that: through the setting of the pushing component, through the process of pushing the two guide plates 702 away from the grinding disc 104, the telescopic rod 601 is used to drive each plug plate 503 on one side of the circular plate 502 to disengage from the slot 506. As the two guide plates 702 continue to move, when the guide plates 702 and the limit plates 802 are against each other, under the interaction force of the inclined surface 803 and the guiding action of the extrusion component, the two limit plates 802 are pushed to retract into the fixed box 801. When the guide plates 702 pass over the limit plates 802, under the elastic action of the extrusion component, the limit plates 802 will be pushed to move close to the guide plates 702, thereby utilizing the blocking effect of the limit plates 802 on the guide plates 702 to separate the plug plates 503 from the slots 506, thereby facilitating the installation of the counterweight ring 205.

[0050] See also Figure 7 and Fig. 9The elastic component shown in the figure includes two groups of two mutually symmetrically arranged operating plates 1101 fixedly connected to the side wall of the telescopic tube 604, a fixed rod 1102 is fixedly connected between the two opposite operating plates 1101, the push arc ring 1001 is slidably connected to the two fixed rods 1102, and the side walls of the two fixed rods 1102 are sleeved with third springs 1103, and the two ends of the two third springs 1103 are respectively connected to the push arc ring 1001 and the operating plate 1101;

[0051] It should be noted here that the elastic component is provided to provide guidance and reset functions for the movement of the push arc ring 1001.

[0052] Working principle: When grinding automobile parts, first place the automobile parts on the workbench 103, and use the clamping assembly to clamp and fix the automobile parts to ensure the position stability of the automobile parts during the grinding process, and then use the bolts 206 to install the grinding disc 104 on one side of the plum blossom plate 201. After the grinding disc 104 is installed, the pressure of the grinding disc 104 during the grinding process is determined according to the material of the automobile parts to be grinded, and then install the appropriate number of counterweight rings 205;

[0053] During the installation of the counterweight ring 205, first, by pushing the two guide plates 702 away from the grinding disc 104, the telescopic rod 601 is used to drive each plugging plate 503 on one side of the circular plate 502 to disengage from the slot 506. As the two guide plates 702 continue to move, when the guide plates 702 and the limiting plates 802 are against each other, the two limiting plates 802 are pushed to retract into the fixed box 801 under the interaction force of the inclined surface 803 and the guiding action of the extrusion component. When the guide plates 702 pass over the limiting plates 802, the limiting plates 802 are pushed to move close to the guide plates 702 under the elastic action of the extrusion component, so that the limiting plates 802 are blocked by the limiting plates 802 on the guide plates 702, so that the plugging plates 503 are separated from the slots 506, thereby facilitating the installation of the counterweight ring 205.

[0054] After the plug plate 503 is separated from the slot 506, the counterweight ring 205 can be sleeved on the side wall of the mounting rod 204. After an appropriate number of counterweight rings 205 are sleeved on the side wall of the mounting rod 204, the threaded ring 302 is driven to move on the side wall of the mounting rod 204 by the threaded engagement transmission between the threaded ring 302 and the threaded strip 301 on the side wall of the mounting rod 204. When the threaded ring 302 abuts against the side surface of the counterweight ring 205, the rotation of the threaded ring 302 is stopped, and then the counterweight ring 205 is installed and fixed by the abutting effect of the threaded ring 302.

[0055] After the counterweight ring 205 is installed and fixed, the two push rods 1002 are moved on the surface of the inclined groove 1003 on the side wall of the limit plate 802 by pushing the push arc ring 1001, and then the limit plate 802 is pushed to retract into the fixed box 801 by utilizing the interaction force between the push rod 1002 and the inclined groove 1003 and the guiding action of the extrusion assembly. When the limit plate 802 is completely retracted into the fixed box 801, the limit plate 802 will release the obstruction of the guide plate 702. At this time, under the elastic action of the first spring 603, the plug plate 503 will be pushed to move close to the slot 506, so that the plug plate 503 is connected with the slot 506.

[0056] After the plug plate 503 is connected to the slot 506, the motor 504 is started to drive the telescopic tube 604 to rotate, and then the mounting rod 204 is driven to rotate under the connection between the plug plate 503 and the slot 506, and further under the action of the connecting assembly, the grinding disc 104 is driven to rotate. During the rotation of the grinding disc 104, the three-dimensional mobile workbench 101 is used to drive the grinding disc 104 to move close to the auto part, and the grinding operation of the auto part is realized through the friction between the grinding disc 104 and the surface of the auto part, and during the grinding process of the grinding disc 104 against the surface of the auto part, the constant weight of each counterweight ring 205 is used to make the grinding operation of the auto part. Under the use, a constant downward axial force is exerted on the grinding disc 104, so that during the grinding process, the grinding disc 104 can always maintain a constant squeezing pressure on the auto parts, thereby maintaining a uniform pressure and cutting depth during the grinding of the auto parts, and under the action of the driving component, the grinding disc 104 and the driving force of the motor 504 form a socket connection relationship, thereby ensuring the driving force of the grinding disc 104 while reducing the impact of the vibration of the motor 504 on the grinding disc 104, thereby reducing the risk of axial movement of the grinding disc 104 caused by the vibration of the motor 504, thereby improving the quality of grinding of auto parts.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for automobile parts processing, comprising: A three-dimensional movable work frame (101) and a grinding disc (104), wherein the three-dimensional movable work frame (101) is provided with a work plate (102) and a work table (103); It is characterized by further comprising: A constant pressure component disposed on the working plate (102) for applying a constant pressure to the grinding disc (104); The constant pressure assembly comprises a plum blossom plate (201) arranged on one side of a working plate (102); the working plate (102) is provided with a connecting assembly for connecting the plum blossom plate (201); the grinding disc (104) is connected to the plum blossom plate (201) via a bolt (206); the side of the plum blossom plate (201) away from the grinding disc (104) is connected to a bottom plate (203) via two support rods (202); the other side of the bottom plate (203) is fixedly connected to a mounting rod (204); a plurality of counterweight rings (205) are sleeved on the side wall of the mounting rod (204); the mounting rod (204) is provided with a fixing assembly for fixing each counterweight ring (205); and the working plate (102) is provided with a driving assembly for driving the grinding disc (104).

2. The grinding device for automobile parts processing according to claim 1, characterized in that: The fixing assembly comprises a threaded strip (301) formed on a side wall of the mounting rod (204), and the threaded strip (301) is threadedly connected to a threaded ring (302).

3. The grinding device for automobile parts processing according to claim 2, characterized in that: The connecting assembly comprises a connecting plate (404) fixedly connected to a side of the working plate (102) close to the grinding disc (104), the connecting plate (404) being provided with a connecting hole (401), the connecting hole (401) being rotatably connected to a connecting ring (402), the side wall of the connecting ring (402) being slidably connected to a plurality of T-shaped rods (403), one end of each of the T-shaped rods (403) being connected to the plum blossom plate (201).

4. The grinding device for automobile parts processing according to claim 3, characterized in that: The driving assembly comprises a fixed plate (501) fixedly connected to a side of the working plate (102) close to the connecting plate (404); a side of the fixed plate (501) close to the grinding disc (104) is connected to a circular plate (502) through a telescopic assembly; a side of the circular plate (502) away from the fixed plate (501) is fixedly connected to a plurality of plug plates (503); a side of the mounting rod (204) close to the fixed plate (501) is provided with a plurality of slots (506); each of the slots (506) is matched with the plug plate (503); the fixed plate (501) is rotatably connected to a driving rod (505); a side of the fixed plate (501) away from the circular plate (502) is provided with a motor (504); an output end of the motor (504) is connected to the driving rod (505).

5. The grinding device for automobile parts processing according to claim 4, characterized in that: The telescopic assembly comprises a telescopic tube (604) arranged on a side of the fixed plate (501) close to the circular plate (502); one end of the driving rod (505) away from the motor (504) is connected to the telescopic tube (604); the telescopic tube (604) is connected to the telescopic plate (602) via a guide assembly; the telescopic plate (602) is fixedly connected to a telescopic rod (601) on a side away from the fixed plate (501); one end of the telescopic rod (601) is connected to the circular plate (502); a first spring (603) is sleeved on a side wall of the telescopic rod (601) located inside the telescopic tube (604); and two ends of the first spring (603) are respectively connected to an inner wall of the telescopic tube (604) and the telescopic plate (602).

6. The grinding device for automobile parts processing according to claim 5, characterized in that: The guide assembly comprises two guide holes (701) which are symmetrically arranged on the side wall of the telescopic tube (604); the two guide holes (701) are slidably connected with guide plates (702); opposite ends of the two guide plates (702) are connected to the telescopic plate (602); and the telescopic tube (604) is provided with a limiting assembly for limiting the two guide plates (702).

7. The grinding device for automobile parts processing according to claim 6, characterized in that: The limiting assembly comprises two fixed boxes (801) fixedly connected to the side wall of the telescopic tube (604); the two fixed boxes (801) are connected to the limiting plates (802) via an extrusion assembly; a slope (803) is provided on one side of the two limiting plates (802) close to the circular plate (502); and the telescopic tube (604) is provided with a pushing assembly for pushing the two limiting plates (802).

8. The grinding device for automobile parts processing according to claim 7, characterized in that: The extrusion assembly comprises an extrusion plate (901) slidably connected to a fixed box (801); a side of the limit plate (802) away from the guide plate (702) is connected to the extrusion plate (901); a second spring (902) is fixedly connected to the other side of the extrusion plate (901); and the other end of the second spring (902) is connected to the inner wall of the fixed box (801).

9. The grinding device for automobile parts processing according to claim 7, characterized in that: The pushing component comprises a pushing arc ring (1001) slidably connected to the side wall of the telescopic tube (604); the pushing arc ring (1001) is connected to the side wall of the telescopic tube (604) via an elastic component; two pushing rods (1002) are fixedly connected to one side of the pushing arc ring (1001) close to the fixed box (801); an inclined groove (1003) is provided on one side of the limiting plate (802) close to the pushing arc ring (1001); and one end of the two pushing rods (1002) away from the pushing arc ring (1001) is slidably connected to the inclined groove (1003).

10. A grinding device for automobile parts processing according to claim 9, characterized in that: The elastic component comprises two groups of two mutually symmetrically arranged operating plates (1101) fixedly connected to the side walls of the telescopic tube (604); a fixed rod (1102) is fixedly connected between the two opposite operating plates (1101); the pushing arc ring (1001) is slidably connected to the two fixed rods (1102); the side walls of the two fixed rods (1102) are sleeved with a third spring (1103); and the two ends of the two third springs (1103) are respectively connected to the pushing arc ring (1001) and the operating plate (1101).

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