A surface treatment apparatus for automobile parts with descaling and angle-adjustable polishing

Abstract

A kind of automobile component descaling polishing and angle-adjustable surface treatment equipment, including: processing roller unit, it includes sequentially arranged and parallel with each other in clockwise / counterclockwise direction wiping roller, rough grinding roller, fine grinding roller and cleaning roller, two fixed side plates and driving shaft;First drive unit, it includes two installation side plates, for driving the first steering structure of driving shaft rotation;Second drive unit, it includes the second driven wheel respectively arranged on the roller shaft of wiping roller, rough grinding roller, fine grinding roller and cleaning roller, and second drive wheel;The second driven wheel is gear, and the second drive wheel is provided with the gear that occupies 1 / 2~2 / 3 of wheel body circumference length.The present application makes the roller body of processing processing component only automatically rotate when reaching processing station, and the power source for driving all roller bodies to rotate only needs one motor, reduces economic cost and operation difficulty, with the advantages of simple operation, good economy.

Description

Technical Field

[0001] This invention belongs to the field of automotive processing equipment technology, specifically relating to a surface treatment device for automotive parts that can remove dirt, polish, and have an adjustable angle. Background Technology

[0002] Automotive painting processes can generally be divided into two main parts: first, the surface treatment of the metal before painting, also known as pretreatment technology; and second, the painting application process. Surface treatment mainly includes removing oil, dust, rust, and old paint layers from the workpiece surface during repair work to improve the surface condition of the workpiece. This includes mechanical processing and chemical treatment of the workpiece surface, such as phosphating, oxidation, and passivation, depending on the specific circumstances.

[0003] However, existing automotive painting equipment is inconvenient for cleaning and polishing the surface of metal parts during the surface treatment process, resulting in a long time required for surface treatment and affecting the efficiency of painting. Secondly, the position and angle of the processing equipment are difficult to adjust, and it can usually only perform surface treatment on specific parts of the parts, resulting in poor surface treatment effect.

[0004] The document with authorization announcement number CN114406873B discloses a suspended automotive painting equipment, including a painting roller mechanism, which includes a wiping roller, a coarse grinding roller, a fine grinding roller and a cleaning roller arranged in a clockwise direction and parallel to each other, a pair of side plates that are respectively connected to both ends of the wiping roller, the coarse grinding roller, the fine grinding roller and the cleaning roller, and a drive shaft connected to the pair of side plates to drive the side plates to rotate; a roller group longitudinal lifting mechanism, which includes a C-shaped connecting frame connected to the drive shaft, and a lifting drive assembly connected to the connecting frame to perform lifting and lowering movements by a driver.

[0005] However, the above-mentioned device still has the following drawbacks: the wiping roller, coarse grinding roller, fine grinding roller and cleaning roller in the device all need to be connected to and controlled by a separate motor. When the process is carried out at different stages, the four motors need to be started and stopped repeatedly, which makes the operation complicated. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a surface treatment device for descaling, polishing, and angle adjustment of automotive parts. By configuring a processing roller unit, a first drive unit, and a second drive unit, the rollers for processing the parts automatically rotate only when they reach the processing station. Furthermore, only one motor is needed to drive the rotation of all rollers, reducing economic costs and operational complexity. This device offers advantages such as simple operation and high economic efficiency. Simultaneously, the intermittent rotation of the rollers effectively reduces frictional heat between the rollers and the surface of the processed parts without compromising the processing effect, thus preventing overheating that could affect the device's lifespan.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] A surface treatment device for descaling, polishing, and adjusting the angle of automotive parts includes:

[0009] The processing roller unit includes: a wiping roller, a coarse grinding roller, a fine grinding roller and a cleaning roller arranged in a clockwise / counterclockwise direction and parallel to each other; two fixed side plates that are respectively connected to the two ends of the wiping roller, the coarse grinding roller, the fine grinding roller and the cleaning roller; and a drive shaft that connects the two fixed side plates to drive the fixed side plates to rotate.

[0010] The first drive unit includes: two mounting side plates respectively disposed on the side ends of two fixed side plates, and a first steering structure mounted on the inner side wall of the mounting side plates and used to drive the drive shaft to rotate.

[0011] The second drive unit includes: a second driven wheel respectively disposed on the roller shaft side end of the wiping roller, coarse grinding roller, fine grinding roller and cleaning roller, and a second drive wheel disposed on the side of the mounting side plate near the part to be processed; the second driven wheel is a gear, and the second drive wheel is provided with teeth that occupy 1 / 2 to 2 / 3 of the wheel body circumference and mesh with the second driven wheel.

[0012] As a further preferred embodiment of the present invention, the second drive unit further includes a mounting vertical plate disposed on the mounting side plate, a first mounting shaft disposed on the mounting vertical plate and used for mounting the second drive wheel, a first sprocket fixedly mounted on the first mounting shaft, a second mounting shaft rotatably disposed on the mounting vertical plate, a second sprocket disposed on the second mounting shaft, and a transmission chain for connecting the first sprocket and the second sprocket.

[0013] As a further preferred embodiment of the present invention, the first steering structure includes a mounting plate disposed on the inner side wall of the mounting side plate, and a first motor disposed on the mounting plate and used to drive the drive shaft to rotate.

[0014] As a further preferred embodiment of the present invention, the first drive unit further includes a fixed platform for connecting a connecting top plate on the ends of the two mounting side plates away from the processing component, and a second steering structure disposed between the connecting top plate and the fixed platform.

[0015] As a further preferred embodiment of the present invention, the second steering structure includes two first perforated plates disposed at both ends in the width direction of the connecting top plate, a first connecting perforated plate disposed at the lower end of the fixed platform and located between the two first perforated plates, a first fixed shaft passing through the two first perforated plates and the first connecting perforated plate, and a second motor disposed on the fixed platform and whose output end is connected to the first fixed shaft.

[0016] As a further preferred embodiment of the invention, the processing roller unit further includes an indicator disposed on the mounting side plate and located between the wiping roller and the coarse grinding roller.

[0017] As a further preferred embodiment of the present invention, the indicator includes two second perforated plates mounted on the end of the fixed side plate and disposed opposite to each other, a second connecting perforated plate disposed between the two second perforated plates, a second fixed shaft passing through the two second perforated plates and the second connecting perforated plate, and a torsion spring for connecting the second connecting perforated plate and the second fixed shaft.

[0018] As a further preferred embodiment of the present invention, the indicator further includes an arc-shaped plate disposed on the end of the second connecting plate away from the second fixed axis.

[0019] As a further preferred embodiment of the present invention, the first driving unit further includes a sensing element disposed on the connecting top plate. The sensing element includes a first guide plate disposed on the surface of the connecting top plate near the fixed side plate, two mounting rods disposed on both sides of the first guide plate, a sliding plate slidably mounted on the two mounting rods, a support spring sleeved on the mounting rods with one end connected to the sliding plate and the other end connected to the mounting side plate, and a second guide plate disposed on the side of the sliding plate away from the fixed side plate and corresponding to the first guide plate. The first guide plate and the second guide plate are respectively connected to two wires in a one-to-one correspondence, and the other ends of the two wires are respectively connected to the positive and negative poles of the indicating element.

[0020] As a further preferred embodiment of the present invention, the sensing element further includes a countersunk hole disposed on the surface of the sliding plate away from the connecting top plate and through which the mounting rod passes, an external thread disposed on the mounting rod, and a limiting nut for being embedded in the countersunk hole and screwed into the external thread.

[0021] As a further preferred embodiment of the present invention, the first drive unit further includes a mounting cavity disposed on the surface of the connecting top plate, and a power supply disposed within the mounting cavity and mounted on a wire path.

[0022] As a further preferred embodiment of the present invention, the first steering structure further includes a first drive wheel disposed on the output shaft of the first motor, and a first driven wheel fixedly mounted on the drive shaft and meshing with the first drive wheel. Attached Figure Description

[0023] Appendix Figure 1 This is a schematic diagram of the structure of the present invention from the main viewing angle.

[0024] Appendix Figure 2 This is a schematic diagram of the structure of the present invention from a side view.

[0025] Appendix Figure 3 This is a schematic diagram of the positional structure of the second driving unit of the present invention.

[0026] Appendix Figure 4 This is a schematic diagram of the position structure of the indicator of the present invention.

[0027] Appendix Figure 5 This is a cross-sectional structural diagram of the sensing element of the present invention.

[0028] Figure description: Part to be processed (a), Indicating element (b), Processing roller unit (1), First drive unit (2), Second drive unit (3);

[0029] Fixed side plate 11, drive shaft 12, indicator 13;

[0030] Second perforated plate 131, second connecting perforated plate 132, second fixed shaft 133, torsion spring 134, arc plate 135;

[0031] Mounting side plate 21, first steering structure 22, fixed platform 23, connecting top plate 24, second steering structure 25, sensing element 26;

[0032] Mounting plate 221, first motor 222, first drive wheel 223, first driven wheel 224;

[0033] First perforated plate 251, first connecting perforated plate 252, first fixed shaft 253, second motor 254;

[0034] First guide plate 261, mounting rod 262, sliding plate 263, support spring 264, second guide plate 265, countersunk hole 266, limit nut 267, mounting cavity 268, power supply 269;

[0035] Second driven wheel 31, second driving wheel 32, mounting plate 33, first mounting shaft 34, first sprocket 35, second mounting shaft 36, second sprocket 37, transmission chain 38. Detailed Implementation

[0036] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to 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.

[0037] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Example 1

[0039] This embodiment provides a surface treatment device for descaling, polishing, and adjusting the angle of automotive parts, comprising:

[0040] The processing roller unit 1 includes: a wiping roller, a coarse grinding roller, a fine grinding roller and a cleaning roller arranged in a clockwise / counterclockwise direction and parallel to each other; two fixed side plates 11 respectively connected to the two ends of the wiping roller, the coarse grinding roller, the fine grinding roller and the cleaning roller; and a drive shaft 12 connecting the two fixed side plates 11 to drive the fixed side plates 11 to rotate.

[0041] The first drive unit 2 includes: two mounting side plates 21 respectively disposed on the side ends of two fixed side plates 11, and a first steering structure 22 mounted on the inner side wall of the mounting side plate 21 and used to drive the drive shaft 12 to rotate.

[0042] The second drive unit 3 includes: a second driven wheel 31 respectively disposed on the roller shaft side ends of the wiping roller, the coarse grinding roller, the fine grinding roller and the cleaning roller, and a second drive wheel 32 disposed on the side of the mounting side plate 21 near the part to be processed a; the second driven wheel 31 is a gear, and the second drive wheel 32 is provided with teeth that occupy 1 / 2 to 2 / 3 of the wheel body circumference and mesh with the second driven wheel 31.

[0043] It is worth noting that there is only one first steering structure 22, which is mounted on a single mounting side plate 21. One end of the drive shaft 12 is connected to the first steering structure 22, and the other end is rotatably connected to another mounting side plate 21. The second drive wheel 32 is located inside the mounting side plate 21 and inside the circumferential trajectory of all the second driven wheels 31. When one of the second driven wheels 31 rotates to a predetermined position, the teeth on the second driven wheel 31 can mesh with the teeth on the second drive wheel 32. When the drive shaft of the second drive wheel 32 is driven by a motor (not shown in the figure), the teeth on the second drive wheel 32 intermittently mesh with the second driven wheel 31 and drive the second driven wheel 31 to rotate intermittently. This achieves the goal of automatically rotating the rollers (wiping roller, coarse grinding roller, fine grinding roller, and sweeping roller) at the processing position (the position in contact with the part to be processed a) to process the surface of the part to be processed a. Furthermore, the roller can be made to move in both directions by controlling the forward and reverse rotation of the drive shaft of the second drive wheel 32, thereby enhancing the processing effect of the roller.

[0044] The surface treatment equipment provided in this embodiment has advantages over the prior art, including at least the following: First, by setting up the second drive unit, the rollers of the processed parts only rotate automatically when they reach the processing station, and only one motor is needed to drive the rotation of all the rollers, which reduces economic costs and operational difficulty, and has the advantages of simple operation and good economy; Second, the second drive unit can drive the rollers to rotate intermittently, which can effectively reduce the frictional heat generated between the rollers and the surface of the processed parts without reducing the processing effect on the processed parts, and avoid overheating that affects the life of the device.

[0045] As a further preferred embodiment, the first steering structure 22 includes a mounting plate 221 disposed on the inner side wall of the mounting side plate 21, a first motor 222 disposed on the mounting plate 221 and used to drive the drive shaft 12 to rotate, a first drive wheel 223 disposed on the output shaft of the first motor 222, and a first driven wheel 224 fixedly mounted on the drive shaft 12 and meshing with the first drive wheel 223. The advantage of this arrangement is that the relatively large first motor 222 is not centrally located, thereby avoiding interference with the lower second drive unit.

[0046] As a further preferred embodiment, the second drive unit 3 further includes a mounting vertical plate 33 disposed on the mounting side plate 21, a first mounting shaft 34 disposed on the mounting vertical plate 33 for mounting the second drive wheel 32, a first sprocket 35 fixedly mounted on the first mounting shaft 34, a second mounting shaft 36 rotatably disposed on the mounting vertical plate 33, a second sprocket 37 disposed on the second mounting shaft 36, and a transmission chain 38 for connecting the first sprocket 35 and the second sprocket 37. The mounting vertical plate 33 is parallel to the mounting side plate 21 and can be mounted on the lower end of the mounting plate 221. The arrangement of the sprockets allows for a reasonable distribution of the positions of the power components (such as the first sprocket 35 and the second sprocket 37).

[0047] The working principle of the surface treatment equipment provided in this embodiment includes: starting the first motor 222 to drive the first drive wheel 223 to rotate, causing the first driven wheel 224 to drive the drive shaft 12 to rotate until one of the wiping roller, coarse grinding roller, fine grinding roller, and cleaning roller rotates to a predetermined position (contacting the surface of the part to be processed a). At this time, the first motor 222 is turned off, and another motor is started to drive the second sprocket 37 to drive the first sprocket 35 to rotate, thereby causing the second drive wheel 32 to drive the second driven wheel 31 to rotate intermittently, so that the rollers intermittently treat the surface of the part to be processed a. When it is necessary to change the position of the roller, firstly, the second drive wheel 32 drives the second driven wheel 31 to rotate until the teeth on the second drive wheel 32 disengage from the second driven wheel 31, and the two disengage. Then, the motor is turned off to stop the second drive wheel 32 from rotating. Then, the above steps are repeated until all rollers have completed the treatment of the surface of the part to be processed a.

[0048] Example 2

[0049] This embodiment optimizes the structure based on embodiment 1, as follows:

[0050] The first drive unit 2 also includes a fixed platform 23, a connecting top plate 24 for connecting the ends of the two mounting side plates 21 away from the processing component a, and a second steering structure 25 disposed between the connecting top plate 24 and the fixed platform 23.

[0051] In this embodiment, the second steering structure 25 includes two first perforated plates 251 disposed at both ends of the connecting top plate 24 in the width direction, a first connecting perforated plate 252 disposed at the lower end of the fixed platform 23 and located between the two first perforated plates 251, a first fixed shaft 253 passing through the two first perforated plates 251 and the first connecting perforated plate 252, and a second motor 254 disposed on the fixed platform 23 and whose output end is connected to the first fixed shaft 253.

[0052] The advantages of the surface treatment equipment provided in this embodiment include: the tilt angle of the entire processing roller unit 1 can be adjusted to ensure that the roller can fit against the surface of the part to be processed a, and the equipment can adapt to and process parts a with different shapes.

[0053] Example 3

[0054] This embodiment optimizes the structure based on embodiment 2, and the specific structure is as follows:

[0055] The processing roller unit 1 also includes an indicator 13 disposed on the mounting side plate 21 and located between the wiping roller and the coarse grinding roller.

[0056] In this embodiment, the indicator 13 includes two second perforated plates 131 mounted on the end of the fixed side plate 11 and arranged opposite each other, a second connecting perforated plate 132 disposed between the two second perforated plates 131, a second fixed shaft 133 passing through the two second perforated plates 131 and the second connecting perforated plate 132, and a torsion spring 134 for connecting the second connecting perforated plate 132 and the second fixed shaft 133. The purpose of the above structure is twofold: first, to provide a prompting function; and second, to allow the second connecting perforated plate 132 to fold when rotated by the fixed side plate 11, avoiding other structures encountered and ensuring that the indicator 13 can complete a full rotation.

[0057] As a further preferred embodiment, the indicator 13 further includes an arc-shaped plate 135 disposed on the end of the second connecting hole plate 132 away from the second fixed shaft 133, for reducing wear between the indicator 13 and other structures.

[0058] The purpose of the indicator provided in this embodiment is to mark the position of the rollers in the processing roller unit 1, especially to guide the start and stop of the second steering structure 25. The specific working principle is as follows: when the part to be processed a is fixed in the processing position, the second steering structure 25 is activated according to the shape of the surface of the part to be processed a to adjust the tilt angle of the processing roller unit 1; and before processing the next part to be processed a, it is necessary to observe whether the indicator 13 is in the initial position. When the indicator 13 is in the initial position, all the rollers in the processing roller unit 1 are also in the initial position, so as to avoid the processing roller unit 1 from messing up the processing steps of the next part to be processed a.

[0059] Example 4

[0060] This embodiment optimizes the structure based on embodiment 3, and the specific structure is as follows:

[0061] The first driving unit 2 further includes a sensing element 26 disposed on the connecting top plate 24. The sensing element 26 includes a first guide plate 261 disposed on the surface of the connecting top plate 24 near the fixed side plate 11, two mounting rods 262 disposed on both sides of the first guide plate 261, a sliding plate 263 slidably mounted on the two mounting rods 262, a support spring 264 sleeved on the mounting rods 262 with one end connected to the sliding plate 263 and the other end connected to the mounting side plate 21, a second guide plate 265 disposed on the side of the sliding plate 263 away from the fixed side plate 11 and corresponding to the first guide plate 261, a mounting cavity 268 disposed on the surface of the connecting top plate 24, and a power supply 269 disposed in the mounting cavity 268. The first guide plate 261 and the second guide plate 265 are respectively connected to two wires one-to-one, and the other ends of the two wires are respectively connected to the positive and negative terminals of the indicating element b. The power supply 269 is installed in the path of one wire (i.e., the power supply 269 is connected in series on one wire).

[0062] The sensor 26 provided in this embodiment can enhance the marking effect. That is, when the indicator 13 rotates to the predetermined position, the sensor 26 can be triggered to complete the closed-loop connection, thereby energizing the indicator element b to work. The indicator element b can be a light-emitting element such as a light bulb, or a sound-emitting element such as a buzzer. All of the above elements are existing structures, so their specific installation methods and structures will not be described in detail.

[0063] The closed-loop connection is achieved by the indicator 13 triggering the sensor 26 as follows: when the indicator 13 rotates to the predetermined position, the arc plate 135 presses the sliding plate 263, causing the support spring 264 to compress. The second guide plate 265 moves with the sliding plate 263 and contacts the first guide plate 261. Since both guide plates are conductive, they are energized, and the wires complete the closed-loop series connection, energizing the indicator element b. When the indicator 13 leaves the predetermined position, the elastic force of the support spring 264 causes the sliding plate 263 to return to its original position. There is a gap between the second guide plate 265 and the first guide plate 261, the circuit is broken, and the indicator element b does not work.

[0064] As a further preferred embodiment, the sensing element 26 further includes a countersunk hole 266 disposed on the surface of the sliding plate 263 away from the connecting top plate 14 and through which the mounting rod 262 passes, an external thread disposed on the mounting rod 262, and a limiting nut 267 for being embedded in the countersunk hole 266 and screwed into the external thread. The purpose of this arrangement is twofold: firstly, to adjust the initial position of the sliding plate 263, thereby adjusting the sensitivity of the sensing element 26; and secondly, to prevent the limiting nut from protruding from the surface of the sliding plate 263 and preventing the indicator 13 from passing through.

[0065] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A surface treatment device for automotive parts, characterized in that, include: The processing roller unit (1) includes: a wiping roller, a coarse grinding roller, a fine grinding roller and a cleaning roller arranged in a clockwise / counterclockwise direction and parallel to each other; two fixed side plates (11) respectively connected to the two ends of the wiping roller, the coarse grinding roller, the fine grinding roller and the cleaning roller; and a drive shaft (12) connecting the two fixed side plates (11) to drive the fixed side plates (11) to rotate. The first drive unit (2) includes: two mounting side plates (21) respectively disposed on the side ends of two fixed side plates (11), and a first steering structure (22) mounted on the inner side wall of the mounting side plate (21) and used to drive the drive shaft (12) to rotate. The second drive unit (3) includes: a second driven wheel (31) respectively disposed on the roller shaft side ends of the wiping roller, coarse grinding roller, fine grinding roller and cleaning roller, and a second drive wheel (32) disposed on the side of the mounting side plate (21) near the part to be processed (a); the second driven wheel (31) is a gear, and the second drive wheel (32) is provided with teeth that occupy 1 / 2 to 2 / 3 of the wheel body circumference and mesh with the second driven wheel (31); the processing roller unit (1) also includes an indicator (13) disposed on the mounting side plate (21) and located between the wiping roller and the coarse grinding roller. The first motor 222 is started to drive the first drive wheel 223 to rotate, which in turn drives the first driven wheel 224 to rotate the drive shaft 12 until one of the wiping roller, coarse grinding roller, fine grinding roller and cleaning roller rotates to a predetermined position that contacts the surface of the part to be processed (a). At this time, the first motor 222 is turned off and another motor is started to drive the roller to perform intermittent processing on the surface of the part to be processed (a).

2. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 1, characterized in that, The second drive unit (3) further includes a mounting vertical plate (33) disposed on the mounting side plate (21), a first mounting shaft (34) disposed on the mounting vertical plate (33) and used to mount the second drive wheel (32), a first sprocket (35) fixedly mounted on the first mounting shaft (34), a second mounting shaft (36) rotatably disposed on the mounting vertical plate (33), a second sprocket (37) disposed on the second mounting shaft (36), and a transmission chain (38) for connecting the first sprocket (35) and the second sprocket (37).

3. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 1, characterized in that, The first steering structure (22) includes a mounting plate (221) disposed on the inner side wall of the mounting side plate (21), and a first motor (222) disposed on the mounting plate (221) and used to drive the drive shaft (12) to rotate.

4. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 1, characterized in that, The first drive unit (2) further includes a fixed platform (23), a connecting top plate (24) for connecting the two mounting side plates (21) at the ends away from the processing component (a), and a second steering structure (25) disposed between the connecting top plate (24) and the fixed platform (23).

5. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 4, characterized in that, The second steering structure (25) includes two first perforated plates (251) disposed at both ends of the connecting top plate (24) in the width direction, a first connecting perforated plate (252) disposed at the lower end of the fixed platform (23) and located between the two first perforated plates (251), a first fixed shaft (253) passing through the two first perforated plates (251) and the first connecting perforated plate (252), and a second motor (254) disposed on the fixed platform (23) and whose output end is connected to the first fixed shaft (253).

6. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 5, characterized in that, The indicator (13) includes two second hole plates (131) mounted on the end of the fixed side plate (11) and arranged opposite to each other, a second connecting hole plate (132) disposed between the two second hole plates (131), a second fixed shaft (133) passing through the two second hole plates (131) and the second connecting hole plate (132), and a torsion spring (134) for connecting the second connecting hole plate (132) and the second fixed shaft (133).

7. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 6, characterized in that, The indicator (13) also includes an arc-shaped plate (135) disposed at the end of the second connecting hole plate (132) away from the second fixed shaft (133).

8. A surface treatment device for descaling, polishing, and angle-adjustable of automotive parts according to claim 6 or 7, characterized in that, The first driving unit (2) further includes a sensor (26) disposed on the connecting top plate (24). The sensor (26) includes a first guide plate (261) disposed on the surface of the connecting top plate (24) near the fixed side plate (11), two mounting rods (262) disposed on both sides of the first guide plate (261), a sliding plate (263) slidably mounted on the two mounting rods (262), a support spring (264) sleeved on the mounting rods (262) with one end connected to the sliding plate (263) and the other end connected to the mounting side plate (21), and a second guide plate (265) disposed on the side of the sliding plate (263) away from the fixed side plate (11) and corresponding to the first guide plate (261). The first guide plate (261) and the second guide plate (265) are respectively connected to two wires one-to-one, and the other ends of the two wires are respectively connected to the positive and negative poles of the indicator element (b).

9. The surface treatment equipment for descaling, polishing, and angle adjustment of automotive parts according to claim 8, characterized in that, The sensing element (26) further includes a countersunk hole (266) disposed on the side of the sliding plate (263) away from the connecting top plate (24) and through which the mounting rod (262) passes, an external thread disposed on the mounting rod (262), and a limiting nut (267) for being embedded in the countersunk hole (266) and screwed to the external thread.

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