Surface treatment device for unqualified automobile exhaust pipe tail throat spraying ornament

Abstract

The invention provides an unqualified automobile exhaust pipe tail throat spraying ornament surface treatment device, and relates to the field of spraying ornament surface treatment.The device comprises a machine base, and a fixed supporting plate is fixedly connected to the left side of the upper end face of the machine base; two T-shaped sliding rails are symmetrically arranged on the upper end face of the machine base in the front-back direction, and an L-shaped sliding supporting plate is slidably connected to the outer portions of the two T-shaped sliding rails. The fixed supporting plate and the L-shaped sliding supporting plate are each provided with a rotary driving mechanism. Through cooperation of the rotary driving mechanism and the expanding and supporting mechanism, the labor intensity is reduced, the treatment efficiency is improved, through cooperation of a one-way limiting rod, a one-way limiting groove and a one-way limiting mechanism, the stability of the expanding and supporting mechanism is improved, and the grinding quality is guaranteed; the problems that when the surface of an unqualified automobile exhaust pipe tail throat spraying ornament is manually treated at present, multiple times of clamping and angle adjustment are needed, so that labor intensity is large, efficiency is low, a positioning clamp of a thread structure is prone to loosening, and the grinding quality is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of surface treatment of spray-coated decorative parts, and in particular to a surface treatment device for spray-coated decorative parts of unqualified automobile exhaust pipe tail throats. Background Art

[0002] As a key decorative component of a vehicle's exterior, the surface quality of automotive exhaust tailpipes directly impacts the overall visual impact. Currently, electroplating or spray coating processes are commonly used for surface treatment, with spray coating being widely adopted due to its lower cost and diverse color options. However, in actual production, due to various factors such as improper control of spraying process parameters, malfunctioning spraying equipment, and incomplete surface treatment of raw materials, surface defects such as sag, orange peel, and particles often occur on spray-coated parts. Directly scrapping these parts would result in significant waste of resources and increased costs, necessitating surface treatment to facilitate rework.

[0003] At present, for the surface treatment of unqualified automobile exhaust pipe tail throat spray decoration parts (hereinafter referred to as "spray decoration parts"), the industry generally adopts the method of manual grinding with electric grinding devices. During the grinding process, the spray decoration parts need to be clamped and fixed with the help of positioning fixtures first. Then, the staff uses handheld electric grinding devices to grind the surface of the spray decoration parts. When the upper side of the outer peripheral surface of the spray decoration parts is polished, the positioning fixture needs to be loosened, the angle of the spray decoration parts needs to be adjusted, and then the parts need to be re-fixed before continuing to grind. This grinding method is not only labor-intensive, but also inefficient, and it is difficult to meet the needs of large-scale production. In addition, the positioning fixtures used to fix the spray decoration parts mostly use threaded structures (screws and nuts) for tightening. However, during the grinding process, the threaded structure is prone to loosening due to force, thereby reducing the stability of the positioning fixture when fixing the spray decoration parts, affecting the grinding quality and the reliability of the grinding process. Summary of the Invention

[0004] The present invention relates to a device for treating the surface of unqualified automobile exhaust pipe tail throat spray decorative parts, which solves the problem that the industry currently generally adopts manual combined with electric grinding devices to treat the surface of unqualified automobile exhaust pipe tail throat spray decorative parts, which requires multiple clamping and angle adjustment. This grinding method is not only labor-intensive but also inefficient, making it difficult to meet large-scale production needs. In addition, the positioning fixture of the threaded structure is easy to loosen, affecting the grinding quality and reliability.

[0005] The first aspect of the present invention provides a surface treatment device for spray-painted decorative parts of unqualified automobile exhaust pipe tail throats, specifically comprising: a machine base, a fixed support plate fixedly connected to the left side of the upper end face of the machine base; two T-shaped slide rails are symmetrically arranged on the upper end face of the machine base, and the two T-shaped slide rails are slidably connected to the outside of the L-shaped sliding support plate; a rotation drive mechanism is installed on the fixed support plate and the L-shaped sliding support plate, and each rotation drive mechanism is provided with an expansion mechanism; each of the rotation drive mechanisms is provided with two one-way limit mechanisms; the one-way limit mechanism includes a shell, a sliding block is slidably connected to the inside of the shell, and a tightening column is provided on the end face of the sliding block head, a one-way limit block is provided on the end face of the tightening column head, and the one-way limit block and the tightening column are an integrated structure, and a spring is installed at the tail of the sliding block inside the shell.

[0006] Furthermore, the top of the fixed support plate is fixedly connected to a top plate, an electric lifting device is installed on the top plate, and an electric slide is installed at the bottom of the electric lifting device, and an electric grinding device is installed on the slide seat at the bottom of the electric slide; the upper right end face of the L-shaped sliding support plate is installed with a plug-in limit assembly; the left end face of the fixed support plate is installed with a control box; each upper end face of the T-shaped slide rail is evenly provided with a limit circular hole.

[0007] Furthermore, a circular through hole is provided on the opposite surfaces of the fixed support plate and the L-shaped sliding support plate, and a bearing is installed in the circular through hole on the fixed support plate and the L-shaped sliding support plate.

[0008] Furthermore, the rotation drive mechanism includes a circular rotating block and a synchronous motor, the circular rotating block is fixedly mounted on the inner ring of the bearing, and the outer side surface of the circular rotating block is provided with six rectangular openings in a ring array, and each rectangular opening is provided with a strip slide groove; the outer side surface of the circular rotating block is provided with two rectangular slides; the synchronous motor in the left side rotation drive mechanism is installed on the left end surface of the fixed support plate, and the synchronous motor in the right side rotation drive mechanism is installed on the right side of the middle of the L-shaped sliding support plate, a worm is installed on the rotating shaft of the synchronous motor, a driving cylinder is fixedly connected to the edge of the outer side surface of the circular rotating block, and a worm wheel meshing with the worm is installed on the outside of the driving cylinder.

[0009] Furthermore, the expansion mechanism includes six rectangular slide rods, and the six rectangular slide rods are respectively slidably connected to the six rectangular openings opened on the circular rotating block, each rectangular slide rod is provided with a rectangular slider, and the rectangular slider is slidably connected to the bar slide groove; each of the rectangular slide rods is fixedly connected to an arc-shaped expansion plate, and one end of each rectangular slide rod is rotatably connected to a connecting rod through a rotating shaft, and the other ends of the six connecting rods are rotatably connected to an annular driving plate through a rotating shaft, and the outer end surface of the annular driving plate is rotatably connected to a rotating connecting sleeve, and a nut is installed on the outer end surface of the rotating connecting sleeve, and the inside of the nut is threadedly connected to a threaded rod fixed to the outer side surface of the circular rotating block.

[0010] Furthermore, two one-way limit rods are fixedly connected to the side of the annular driving plate away from the nut, and the two one-way limit rods are respectively slidably connected to the two rectangular sliding openings on the circular rotating block. The two one-way limit rods are evenly provided with one-way limit grooves on the back sides of each other, and the horizontal cross-sectional shape of each one-way limit groove is triangular; the horizontal cross-sectional shape of the one-way limit block is also triangular.

[0011] Furthermore, when the one-way limiting mechanism is in the one-way limiting state, the one-way limiting block is engaged with the one-way limiting groove.

[0012] Furthermore, a pinching plate A is fixedly connected to the shell, and two through-holes are provided on the pinching plate A, each of which is slidably connected to a clip, and a spring is installed inside each through-hole; a pinching plate B is fixedly connected to the sliding block, and a rectangular clip is provided on the pinching plate B for connecting with the clip. When the rectangular clip is connected with the clip, the one-way limit block is separated from the one-way limit groove.

[0013] Furthermore, the plug-in limit assembly includes a sliding shell, there are two sliding shells, and the two sliding shells are fixedly connected to the upper end surface of the right side of the L-shaped sliding support plate, each sliding shell is slidably connected to a slider, and the lower end surface of each slider is fixedly connected to a plug-in column that passes through the lower part of the sliding shell and the lower part of the right side of the L-shaped sliding support plate, and a spring is installed at the upper end of the slider inside each sliding shell; a lifting rod is fixedly connected between the two sliders, and a fixing rod is fixedly connected between the two sliding shells, and the fixing rod is located on the upper part of the lifting rod.

[0014] Furthermore, when the plug-in limiting assembly is in the limiting state, the two plug-in columns are respectively plugged into the limiting circular holes provided on the two T-shaped slide rails.

[0015] The present invention provides a surface treatment device for unqualified automobile exhaust pipe tail throat spraying decorative parts, which has the following beneficial effects: 1. The present invention utilizes a coordinated design of a rotary drive mechanism and an expansion mechanism. After the spray-painted part is fixed by the two expansion mechanisms, the electric grinding device controls the two rotary drive mechanisms to rotate the two expansion mechanisms synchronously during grinding. The two rotating expansion mechanisms rotate the spray-painted part, ensuring that the outer periphery of the spray-painted part is evenly ground. This design completely eliminates the need for manual handheld electric grinding and eliminates multiple clamping steps through the automated angle adjustment mechanism. This not only significantly reduces labor intensity but also increases the processing efficiency of the outer peripheral surface of the spray-painted part to more than twice that of conventional processes, meeting the high-efficiency operation requirements of large-scale production.

[0016] 2. The present invention adopts the coordinated design of the one-way limit rod, the one-way limit groove and the one-way limit mechanism. During the polishing process of the spray-painted decorative parts, the one-way limit groove and the one-way limit block are used to engage and restrict, effectively preventing the six arc-shaped expansion plates from producing contraction movement, thereby greatly improving the stability of the expansion mechanism when fixing the spray-painted decorative parts, eliminating the hidden danger of workpiece loosening from the structural design level, and effectively ensuring the consistency of the polishing quality and the reliability of the processing process.

[0017] 3. The present invention realizes the rapid adjustment of the distance between the two expansion mechanisms by setting up a plug-in limit component. When adjusting, it is only necessary to pull the pulling rod upward to drive the two sliders and the two plug-in columns to move upward synchronously, so that the two plug-in columns are disengaged from the limit holes on the two T-shaped slide rails. Then, the L-shaped sliding support plate is moved left and right to drive the right expansion mechanism to move horizontally, thereby realizing the adjustment operation of the distance between the two expansion mechanisms. The entire adjustment process does not require the assistance of tools. Compared with the traditional threaded adjustment method, the efficiency is improved by 80%, which significantly improves the adaptability of this surface treatment device to spray-coated parts of different specifications.

[0018] 4. The present invention adopts the design of two expansion mechanisms and utilizes the arc-shaped expansion plates on both sides to implement axial fixation on the two ends of the spray-painted decorative parts. The arc-shaped fitting structure provides stable support while avoiding obstruction of the outer peripheral surface of the spray-painted decorative parts. This unobstructed fixing method can ensure the working space of the electric grinding device, eliminate the interference problem of traditional positioning fixtures on the grinding path, and significantly improve the grinding quality of the outer peripheral surface of the spray-painted decorative parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings of the present invention will be briefly introduced below.

[0020] In the attached figure: Figure 1 A structural diagram showing the overall structure of the present application; Figure 2 A schematic diagram showing the structure of the present application from a rear perspective is shown; Figure 3 Shows a front view of the structure of the present application; Figure 4 The schematic diagram of the structure after splitting of the present application is shown; Figure 5 A schematic structural diagram of the rotary drive mechanism and the expansion mechanism of the present application is shown; Figure 6 The figure shows the schematic diagram of the structure after the circular rotating block and the driving cylinder of the present application are separated; Figure 7 A schematic diagram of a partially cutaway structure of a circular rotating block of the present application is shown; Figure 8 A schematic diagram of the structure of the circular rotating block and the expansion mechanism of the present application after being disassembled is shown; Figure 9 A schematic structural diagram of the circular rotating block, the one-way limiting rod and the one-way limiting mechanism of the present application is shown; Figure 10 A schematic diagram of a partial cross-section of the one-way limiting rod and the housing of the present application is shown; Figure 11 It shows a schematic structural diagram of the one-way limit mechanism of the present application in a disassembled state; Figure 12 A structural diagram of the plug-in limit assembly of the present application is shown.

[0021] Reference Signs List 1. Machine base; 101. Fixed support plate; 102. T-shaped slide rail; 103. L-shaped sliding support plate; 104. Top plate; 105. Control box; 106. Limiting circular hole; 107. Bearing; 2. Electric lifting device; 3. Electric slide; 4. Electric grinding device; 5. Rotary drive mechanism; 501. Circular rotating block; 502. Rectangular opening; 503. Synchronous motor; 504. Driving cylinder; 505. Strip chute; 506. Rectangular opening; 6. Expansion mechanism; 601. Rectangular slide bar; 602. Arc-shaped expansion plate; 603. Connecting rod; 604. Annular driving plate; 605. Threaded rod; 606. Nut; 607. One-way limit rod; 608. Rotating connecting sleeve; 609. Rectangular slide bar; 6010. One-way limit slot; 7. One-way limit mechanism; 701. Housing; 702. Sliding block; 703. Clamping column; 704. One-way limit block; 705. Pinch plate A; 706. Through-hole; 707. Buckle; 708. Pinch plate B; 8. Plug-in limit assembly; 801. Sliding housing; 802. Slider; 803. Plug-in column; 804. Lifting rod; 805. Fixing rod. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 described 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.

[0023] Example 1: Please refer to Figures 1 to 12 : The present invention proposes a surface treatment device for spraying decorative parts of unqualified automobile exhaust pipe tail throat, comprising: a machine base 1, a fixed support plate 101 is fixedly connected to the left side of the upper end face of the machine base 1; two T-shaped slide rails 102 are provided on the upper end face of the machine base 1 in a front-to-back symmetrical shape, and an L-shaped sliding support plate 103 is slidably connected to the outside of the two T-shaped slide rails 102; a rotating drive mechanism 5 is installed on the fixed support plate 101 and the L-shaped sliding support plate 103, and each rotating drive mechanism 5 is provided with an expansion mechanism 6, and the unqualified automobile exhaust pipe tail throat is clamped between the two expansion mechanisms 6. Tracheal tail throat spray decoration; two one-way limit mechanisms 7 are provided on each rotary drive mechanism 5; the one-way limit mechanism 7 includes a shell 701, a sliding block 702 is slidably connected to the inside of the shell 701, and the head end face of the sliding block 702 is provided with a tightening column 703 that passes through the head of the shell 701, and the head end face of the tightening column 703 is provided with a one-way limit block 704, and the one-way limit block 704 and the tightening column 703 are an integrated structure, and a spring is installed at the tail of the sliding block 702 inside the shell 701 to make the one-way limit block 704 more reliable when limiting in one direction.

[0024] The top of the fixed support plate 101 is fixedly connected to a top plate 104, on which an electric lifting device 2 is installed, and an electric slide 3 is installed at the bottom of the electric lifting device 2, and an electric grinding device 4 is installed on the slide seat at the bottom of the electric slide 3; a plug-in limit assembly 8 is installed on the upper end face of the right side of the L-shaped sliding support plate 103; a control box 105 is installed on the left end face of the fixed support plate 101, and an intelligent controller is installed inside the control box 105, which can realize intelligent control of the electric lifting device 2, electric slide 3, electric grinding device 4, and synchronous motor 503, thereby improving working efficiency; a limiting circular hole 106 is evenly provided on the upper end face of each T-shaped slide rail 102 for plugging with the plug-in column 803.

[0025] A circular through hole is formed on the opposite surfaces of the fixed support plate 101 and the L-shaped sliding support plate 103 , and a bearing 107 is installed in the circular through hole on the fixed support plate 101 and the L-shaped sliding support plate 103 for installing the circular rotating block 501 .

[0026] The rotary drive mechanism 5 includes a circular rotating block 501 and a synchronous motor 503. The circular rotating block 501 is fixedly mounted on the inner ring of the bearing 107, and the outer side of the circular rotating block 501 is provided with six rectangular openings 502 in a ring array, and each rectangular opening 502 is provided with a strip-shaped slide groove 505; the outer side of the circular rotating block 501 is provided with two rectangular slide openings 506; the synchronous motor 503 in the left rotary drive mechanism 5 is mounted on the left end face of the fixed support plate 101, and the synchronous motor 503 in the right rotary drive mechanism 5 is mounted on the right side of the middle of the L-shaped sliding support plate 103. A worm is installed on the rotating shaft, and a driving cylinder 504 is fixedly connected to the edge of the outer side of the circular rotating block 501, and a worm wheel engaged with the worm is installed on the outside of the driving cylinder 504; the electric lifting device 2, the electric slide 3, the electric grinding device 4, and the synchronous motor 503 are all electrically connected to the control box 105; through the setting of the rotating drive mechanism 5, the two expansion mechanisms 6 can be rotated synchronously, and the spray-painted decoration is rotated by the rotating two expansion mechanisms 6, ensuring that the outside of the spray-painted decoration is evenly polished around, and there is no need for multiple clamping operations, which greatly reduces the labor intensity and effectively improves the surface treatment efficiency of the spray-painted decoration.

[0027] The expansion mechanism 6 includes a rectangular slide bar 601, and the number of the rectangular slide bars 601 is six. The six rectangular slide bars 601 are respectively slidably connected to the six rectangular openings 502 opened on the circular rotating block 501. Each rectangular slide bar 601 is provided with a rectangular slider 609, and the rectangular slider 609 is slidably connected to the strip slide 505; each rectangular slide bar 601 is fixedly connected to an arc-shaped expansion plate 602, and one end of each rectangular slide bar 601 is rotatably connected to a connecting rod 603 through a rotating shaft, and the other end of the six connecting rods 603 is rotatably connected to an annular driving plate 604 through a rotating shaft. The outer surface of the annular driving plate 604 is fixedly connected to the arc-shaped expansion plate 602, and the outer surface of the annular driving plate 604 is fixedly connected to the arc-shaped expansion plate 602. The end face is rotatably connected with a rotating connecting sleeve 608, and a nut 606 is installed on the outer end face of the rotating connecting sleeve 608. The inside of the nut 606 is threadedly connected to a threaded rod 605 fixed to the outer side of the circular rotating block 501; a rotating handwheel is installed on the outside of the nut 606 to improve the convenience when rotating the nut 606; through the setting of the expansion mechanism 6, the two ends of the spray-painted decoration can be fixed, and through the expansion effect of the arc-shaped expansion plate 602 in the expansion mechanism 6, the obstruction of the outer peripheral surface of the spray-painted decoration is avoided, thereby preventing obstruction to the grinding process of the electric grinding device 4 and improving the grinding quality of the outer peripheral surface of the spray-painted decoration.

[0028] Two one-way limiting rods 607 are fixedly connected to the side of the annular driving plate 604 away from the nut 606, and the two one-way limiting rods 607 are respectively slidably connected to the two rectangular sliding openings 506 opened on the circular rotating block 501. The back surfaces of the two one-way limiting rods 607 are evenly provided with one-way limiting grooves 6010, and the horizontal cross-section shape of each one-way limiting groove 6010 is triangular; the horizontal cross-section shape of the one-way limiting block 704 is also triangular; when the one-way limiting block 704 is When the limiting mechanism 7 is in the one-way limiting state, the one-way limiting block 704 is engaged with the one-way limiting groove 6010. Through the cooperation of the one-way limiting rod 607, the one-way limiting groove 6010 and the one-way limiting mechanism 7, the one-way limiting groove 6010 and the one-way limiting block 704 can be used to prevent the six arc-shaped expansion plates 602 from producing contraction movement, which greatly improves the stability of the expansion mechanism 6 when fixing the spray-painted decorative parts, and ensures the consistency of the polishing quality and the reliability of the processing process.

[0029] The housing 701 is fixedly connected with a pinching plate A705, and the pinching plate A705 is provided with two through-holes 706, each through-hole 706 is slidably connected with a buckle 707, and each through-hole 706 is installed with a spring; the sliding block 702 is fixedly connected with a pinching plate B708, and the pinching plate B708 ​​is provided with a rectangular bayonet for engaging with the buckle 707. When the rectangular bayonet is engaged with the buckle 707, the one-way limit block 704 is separated from the one-way limit groove 6010; through the buckle 70 7 cooperates with the rectangular bayonet on the pinching plate B708, so that when the arc-shaped expansion plate 602 needs to be retracted, the pinching plate A705 and the pinching plate B708 ​​can be pinched in opposite directions, and the sliding block 702, the tightening column 703 and the one-way limit block 704 are moved toward the rear end of the shell 701, and then the buckle 707 is engaged with the rectangular bayonet on the pinching plate B708, so that the one-way limit block 704 is separated from the one-way limit groove 6010 and is limited, thereby facilitating the retraction movement of the arc-shaped expansion plate 602.

[0030] Example 2, based on Example 1, Figure 2 and Figure 12As shown, the plug-in limit assembly 8 includes a sliding shell 801, the number of which is two, and the two sliding shells 801 are fixedly connected to the upper end surface of the right side of the L-shaped sliding support plate 103, each sliding shell 801 is slidably connected to a slider 802, and the lower end surface of each slider 802 is fixedly connected to a plug-in column 803 that passes through the lower part of the sliding shell 801 and the lower right part of the L-shaped sliding support plate 103, and a spring is installed at the upper end of the slider 802 inside each sliding shell 801; a lifting rod 8 is fixedly connected between the two sliders 802. 04. A fixing rod 805 is fixedly connected between the two sliding shells 801, and the fixing rod 805 is located on the upper part of the lifting rod 804; when the plug-in limit assembly 8 is in the limited state, the two plug-in columns 803 are respectively plugged into the limiting circular holes 106 opened on the two T-shaped slide rails 102; through the setting of the plug-in limit assembly 8, the distance between the two expansion mechanisms 6 can be quickly adjusted, and the adjustment process does not require the assistance of tools. Compared with the traditional threaded adjustment method, the efficiency is increased by 80%, which improves the adaptability of this surface treatment device to spray-coated parts of different specifications.

[0031] The working principle of the present invention is as follows: when in use, firstly, the left end of the unqualified automobile exhaust pipe tail throat spray decoration (hereinafter referred to as the "spray decoration") is sleeved on the outside of the six arc-shaped expansion plates 602 on the left side, and then the rotating hand wheel on the left nut 606 is manually turned to rotate the left nut 606, and then the left nut 606 is moved to the right with the corresponding rotating connecting sleeve 608 and the annular driving plate 604 under the action of the thread. At this time, the right ends of the six connecting rods 603 on the left simultaneously carry the corresponding six rectangular sliding rods 601 and the six arc-shaped expansion plates 602 to perform expansion movement, fixing the left end of the spray decoration. Then the staff holds the lifting rod 804 and the fixing rod 805, and lifts The pull rod 804 is pulled upward, and the two sliders 802 and the two plug-in columns 803 are moved upward synchronously, so that the two plug-in columns 803 are respectively pulled out from the limiting circular holes 106 opened on the two T-shaped slide rails 102. Then the L-shaped sliding support plate 103 is moved to the left, so that the six arc-shaped expansion plates 602 on the right side are inserted into the right end of the spray-painted decorative part. Then the right nut 606 is rotated. Under the action of the thread, the right nut 606 moves the corresponding rotating connecting sleeve 608 and the annular driving plate 604 to the left. At this time, the left ends of the six connecting rods 603 on the right side simultaneously carry the corresponding six rectangular sliding rods 601 and six arc-shaped expansion plates 602 to expand and fix the right end of the spray-painted decorative part. The six arc-shaped expansion plates 602 on the left are in the expansion process. Figure 10As shown, the left annular driving plate 604 will move to the right with the corresponding two one-way limit rods 607. During this process, under the action of the one-way limit groove 6010 and the one-way limit block 704 slope, the left annular driving plate 604 can easily move to the right with the corresponding two one-way limit rods 607. When the left annular driving plate 604 is about to move to the left with the corresponding two one-way limit rods 607, it is restricted by the one-way limit groove 6010 and the one-way limit block 704, so that the left annular driving plate 604 cannot move to the left at this time, so that the six arc-shaped expansion plates 602 on the left cannot shrink at this time, and the six arc-shaped expansion plates 602 on the right will also be subject to the same limiting principle during the expansion process, thereby greatly improving the stability of the expansion mechanism 6 when fixing the spray-painted parts, ensuring the polishing quality of the spray-painted parts and the reliability of the polishing process.

[0032] After the spray-painted part is fixed, the electric grinding device 4 is started through the control box 105, and the grinding wheel on the electric grinding device 4 is rotated. Then, the electric lifting device 2 is controlled by the control box 105 to move the electric slide 3 and the electric grinding device 4 downward, so that the grinding wheel on the electric grinding device 4 contacts the upper side of the outer peripheral surface of the spray-painted part. Then, the slide seat on the electric slide 3 is controlled by the control box 105 to move the electric grinding device 4 left and right, so that the upper side of the outer peripheral surface of the spray-painted part is polished. When the upper side of the outer peripheral surface of the spray-painted part is polished, the two synchronous motors 50 are controlled by the control box 105. 3 operates synchronously, driving two worms, two worm wheels, two driving cylinders 504, two circular rotating blocks 501 and two expansion mechanisms 6 to rotate synchronously. The two rotating expansion mechanisms 6 drive the spray-painted parts to rotate, so that the outer periphery of the spray-painted parts is effectively polished. During the entire processing process, there is no need to manually hold the electric polishing device 4 to polish the surface of the spray-painted parts, and the angle of the spray-painted parts can be automatically adjusted, thereby eliminating the need for multiple clamping operations, thereby greatly reducing labor intensity and effectively improving the surface treatment efficiency of the spray-painted parts, thereby meeting the needs of large-scale production.

[0033] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0034] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0035] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A surface treatment device for unqualified automobile exhaust pipe tail throat spraying decorative parts, comprising: A machine base (1), wherein a fixed support plate (101) is fixedly connected to the left side of the upper end surface of the machine base (1); characterized in that the upper end surface of the machine base (1) is provided with two T-shaped slide rails (102) in a front-to-back symmetrical shape, and the two T-shaped slide rails (102) are externally slidably connected to an L-shaped sliding support plate (103); a rotary drive mechanism (5) is installed on the fixed support plate (101) and the L-shaped sliding support plate (103), and each rotary drive mechanism (5) is provided with an expansion mechanism (6); each of the rotary drive mechanisms ( 5) are provided with two one-way limiting mechanisms (7); the one-way limiting mechanism (7) includes a shell (701), a sliding block (702) is slidably connected inside the shell (701), and the head end surface of the sliding block (702) is provided with a tightening column (703) that passes through the head of the shell (701), and the head end surface of the tightening column (703) is provided with a one-way limiting block (704), and the one-way limiting block (704) and the tightening column (703) are an integrated structure, and a spring is installed at the tail of the sliding block (702) inside the shell (701).

2. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 1 is characterized in that: The top of the fixed support plate (101) is fixedly connected to a top plate (104), an electric lifting device (2) is installed on the top plate (104), and an electric slide (3) is installed at the bottom of the electric lifting device (2), and an electric grinding device (4) is installed on the slide seat at the bottom of the electric slide (3); a plug-in limit assembly (8) is installed on the upper end surface of the right side of the L-shaped sliding support plate (103); a control box (105) is installed on the left end surface of the fixed support plate (101); and a limit circular hole (106) is uniformly opened on the upper end surface of each T-shaped slide rail (102).

3. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 1 is characterized in that: A circular through hole is provided on the opposite surfaces of the fixed support plate (101) and the L-shaped sliding support plate (103), and a bearing (107) is installed in the circular through hole on the fixed support plate (101) and the L-shaped sliding support plate (103).

4. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 3 is characterized in that: The rotary drive mechanism (5) comprises a circular rotating block (501) and a synchronous motor (503), wherein the circular rotating block (501) is fixedly mounted on the inner ring of the bearing (107), and the outer side surface of the circular rotating block (501) is provided with six rectangular openings (502) in a ring array, and each rectangular opening (502) is provided with a strip-shaped sliding groove (505); the outer side surface of the circular rotating block (501) is provided with two rectangular sliding openings (506); the synchronous motor (503) in the left rotary drive mechanism (5) is mounted on the left end surface of the fixed support plate (101), and the synchronous motor (503) in the right rotary drive mechanism (5) is mounted on the right side surface of the middle part of the L-shaped sliding support plate (103); a worm is mounted on the rotating shaft of the synchronous motor (503), a driving cylinder (504) is fixedly connected to the edge of the outer side surface of the circular rotating block (501), and a worm wheel meshing with the worm is mounted on the outside of the driving cylinder (504).

5. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 4 is characterized in that: The expansion mechanism (6) includes a rectangular slide bar (601), the number of the rectangular slide bars (601) is six, and the six rectangular slide bars (601) are respectively slidably connected to the inside of the six rectangular openings (502) opened on the circular rotating block (501), each rectangular slide bar (601) is provided with a rectangular slider (609), and the rectangular slider (609) is slidably connected to the strip slide groove (505); each rectangular slide bar (601) is fixedly connected to an arc expansion plate (60 2), and one end of each rectangular sliding rod (601) is rotatably connected to a connecting rod (603) via a rotating shaft, and the other ends of the six connecting rods (603) are rotatably connected to an annular driving plate (604) via a rotating shaft, and the outer end surface of the annular driving plate (604) is rotatably connected to a rotating connecting sleeve (608), and the outer end surface of the rotating connecting sleeve (608) is installed with a nut (606), and the inside of the nut (606) is threadedly connected to a threaded rod (605) fixed to the outer side surface of the circular rotating block (501).

6. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 5 is characterized in that: Two one-way limiting rods (607) are fixedly connected to a side of the annular driving plate (604) away from the nut (606), and the two one-way limiting rods (607) are respectively slidably connected to two rectangular sliding openings (506) provided on the circular rotating block (501), and the two one-way limiting rods (607) are evenly provided with one-way limiting grooves (6010) on the opposite sides thereof, and the horizontal cross-section shape of each one-way limiting groove (6010) is triangular; the horizontal cross-section shape of the one-way limiting block (704) is also triangular.

7. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 6 is characterized in that: When the one-way limiting mechanism (7) is in the one-way limiting state, the one-way limiting block (704) is engaged with the one-way limiting groove (6010).

8. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 6 is characterized in that: The housing (701) is fixedly connected to a pinching plate A (705), and the pinching plate A (705) is provided with two through-holes (706), each through-hole (706) is slidably connected to a buckle (707), and each through-hole (706) is provided with a spring; the sliding block (702) is fixedly connected to a pinching plate B (708), and the pinching plate B (708) is provided with a rectangular bayonet for engaging with the buckle (707); when the rectangular bayonet is engaged with the buckle (707), the one-way limit block (704) is separated from the one-way limit groove (6010).

9. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 2 is characterized in that: The plug-in limit assembly (8) includes a sliding shell (801), the number of the sliding shells (801) is two, and the two sliding shells (801) are fixedly connected to the upper end surface of the right side of the L-shaped sliding support plate (103), each sliding shell (801) is slidably connected to a slider (802) inside, and the lower end surface of each slider (802) is fixedly connected to a plug-in column (803) that passes through the lower part of the sliding shell (801) and the lower part of the right side of the L-shaped sliding support plate (103), and a spring is installed at the upper end of the slider (802) inside each sliding shell (801); a lifting rod (804) is fixedly connected between the two sliders (802), and a fixing rod (805) is fixedly connected between the two sliding shells (801), and the fixing rod (805) is located on the upper part of the lifting rod (804).

10. The surface treatment device for unqualified automobile exhaust tail throat spraying parts according to claim 9 is characterized in that: When the plug-in limiting assembly (8) is in the limiting state, the two plug-in columns (803) are respectively plugged into the limiting circular holes (106) opened on the two T-shaped slide rails (102).

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