A tool for painting vehicle rear cover and swing door

Abstract

The present invention proposes a tool for painting a vehicle rear cover swing door, comprising: a tool support seat, the tool support seat is an inverted U-shaped structure, the spring housing is fixedly mounted on the tool support seat on the side of the opening of the U-shaped structure; the tool ring is located at one end of the spring housing away from the tool support seat, and a tool ring connecting shaft is provided on the side of the tool ring close to the spring housing, and the tool ring connecting shaft is slidably mounted in the spring housing; a limiting piece is provided on the end of the tool ring connecting shaft close to the tool support seat; one end of the spring contacts the limiting piece, and the other end of the spring contacts the retaining ring; in the process of the robot opening the rear cover swing door, the robot's hook contacts the tool ring, so that the tool ring moves along the axis direction of the spring housing in the direction away from the tool support seat, and the tool ring overcomes the elastic force of the spring, and then overcomes the error for robot recognition.

Description

Technical Field

[0001] The invention belongs to the field of automobile painting tools, and in particular relates to a tool for painting a flat door of a rear cover of a vehicle. Background Art

[0002] There are few examples of automated tailgate swing door fixtures in the automotive industry. With the advancement of automation, vehicle interior spray painting is now basically done by fully automated robots. The difficulty in designing swing door fixtures lies in the need to ensure the relative position of the fixture in space. The fixture also needs to compensate for the vehicle's own dimensional errors during production, the errors of the sled, the errors caused by the vehicle falling on the sled, and the errors of the fixture itself caused by paint accumulation in the later stage to smoothly open the swing door installed on the car.

[0003] In view of the above technical problems, there is an urgent need for a tooling that can adjust the flat door of the rear cover of the vehicle to solve the above problems. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a tool for painting a vehicle rear cover flat door, comprising:

[0005] A tooling support seat, which is an inverted U-shaped structure and is fixedly mounted on the vehicle rear cover flat door;

[0006] A spring housing is fixedly mounted on the side of the tool support seat away from the U-shaped structure opening; a retaining ring is provided on the end of the spring housing away from the tool support seat;

[0007] A tooling ring is located at one end of the spring housing away from the tooling support seat, a tooling ring connecting shaft is provided on a side of the tooling ring close to the spring housing, and the tooling ring connecting shaft is slidably installed in the spring housing; a limit member is provided on one end of the tooling ring connecting shaft close to the tooling support seat;

[0008] A spring, wherein the spring ring is provided on the outer wall of the tooling ring connecting shaft, and the spring is located inside the spring housing; one end of the spring contacts the limit member, and the other end of the spring contacts the retaining ring;

[0009] Among them, when the robot opens the rear cover swing door, the robot's hook contacts the tooling ring, causing the tooling ring to move along the axis of the spring housing away from the tooling support seat. The tooling ring overcomes the elastic force of the spring and then overcomes the error for robot recognition.

[0010] Preferably, a first nut is provided on the tooling support seat, the first nut is perpendicular to the opening direction of the U-shaped structure, and a fixing bolt is threadedly installed on the first nut; the fixing bolt is used to fix the tooling support seat to the vehicle rear cover flat door.

[0011] Preferably, a connecting rod is provided on the tool support seat, and the connecting rod is located on a side away from the fixing bolt; a positioning pin is installed on the end of the connecting rod away from the tool support seat.

[0012] Preferably, positioning pins of different diameters are replaced to connect with the connecting rod according to the different sizes of holes on the rear cover flat door of different models.

[0013] Preferably, the tooling ring connecting shaft is coaxial with the spring housing.

[0014] Preferably, the tooling ring connecting shaft includes:

[0015] a first stepped shaft, one end of which is fixedly connected to the outside of the tooling ring; a second stepped shaft located at an end of the first stepped shaft away from the tooling ring; the other end of the first stepped shaft is fixedly connected to the second stepped shaft; a thread is provided on the second stepped shaft; and the diameter of the second stepped shaft is smaller than that of the first stepped shaft;

[0016] The limiting member includes a second nut, and the second nut is threadedly installed on the thread.

[0017] Preferably, the first step axis and the second step axis are coaxial.

[0018] Preferably, the limiting member further includes:

[0019] A grooved gasket is installed on the second stepped shaft, and the grooved gasket is located between the first stepped shaft and the second nut.

[0020] Preferably, the grooved gasket is provided with a limiting groove;

[0021] A limiting protrusion is provided inside the spring housing, and the limiting groove is slidably connected to the limiting protrusion. The limiting groove limits the groove-shaped gasket to further limit the tooling ring, so that the tooling ring will not rotate relative to the tooling support seat, causing inaccurate robot recognition.

[0022] Preferably, a threaded hole is provided on the spring housing, and a gasket top screw is threadedly installed in the threaded hole.

[0023] Beneficial effects of the present invention:

[0024] 1. When the robot opens the rear cover and swing door, the tooling ring can overcome the elastic force of the spring and move along the axis of the spring housing to overcome the error and facilitate robot recognition.

[0025] 2. The present invention prevents some debris or paint from entering between the spring and the tooling ring connecting shaft by providing a spring housing, thereby causing the spring to rust or accumulate paint, which in turn causes trouble in cleaning, affects the service life of the spring, and causes high frequency and high cost of spring tooling maintenance.

[0026] 3. The present invention fixes the tool support base to the raised iron plate of the vehicle's rear cover door through fixing bolts, thereby preventing the tool from moving along the direction of the raised iron plate of the vehicle's rear cover door, causing the robot to make inaccurate recognition during the process of opening the vehicle's rear cover door, and then causing malfunctions during the opening process, resulting in unnecessary economic losses.

[0027] 4. The present invention adapts to different vehicle models by replacing positioning pins of different thicknesses according to the different sizes of the circular holes of the rear cover flat doors of different vehicles.

[0028] 5. The present invention provides two symmetrical limiting grooves on the grooved gasket and two symmetrical limiting protrusions on the inner side of the spring housing; the two limiting grooves are slidably installed on the two limiting protrusions, thereby ensuring that the grooved gasket and the tooling ring connecting shaft and the tooling ring move along the axial direction of the tooling ring connecting shaft, thereby ensuring that the tooling ring and the tooling support seat do not rotate relative to each other, thereby preventing the tooling ring from rotating and causing inaccurate robot recognition.

[0029] 6. The present invention has two threaded holes symmetrically provided on the outside of the spring housing near the tooling support seat, and a gasket top screw is threadedly installed in the threaded hole. The gasket top screw is used to limit the downward movement of the tooling ring connecting shaft so that there is a gap between the tooling ring and the spring housing, thereby conveniently preventing the tooling ring from contacting the spring housing and damaging the spring housing for a long time.

[0030] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of a tool for painting a vehicle rear hatch door according to an embodiment of the present invention is shown;

[0033] Figure 2A schematic diagram of the top view of the structure of the tooling for painting a vehicle rear hatch door according to an embodiment of the present invention is shown;

[0034] Figure 3 Shown Figure 2 A magnified schematic diagram of the local structure at point A in the middle;

[0035] Figure 4 A schematic side view of the structure of a tool for painting a flat door on a rear cover of a vehicle according to an embodiment of the present invention is shown;

[0036] Figure 5 A schematic diagram showing the installation positions of the tooling ring connecting shaft, the tooling ring, the spring, the grooved washer, and the second nut in an embodiment of the present invention is shown;

[0037] Figure 6 Shown Figure 5 A magnified schematic diagram of the local structure at point B in the middle.

[0038] Figure 7 A schematic diagram of the installation positions of the tooling ring connecting shaft, tooling ring, spring, and spring housing in an embodiment of the present invention is shown.

[0039] Figure 8 Shown Figure 7 Enlarged schematic diagram of the local structure at point C in the middle.

[0040] In the figure, 1- tooling ring; 3- fixing bolt; 4- tooling support seat; 5- positioning pin; 6- gasket top screw; 7- spring; 8- slotted gasket; 9- first nut; 10- connecting rod; 12- second nut; 30- limiter;

[0041] 2-spring housing; 21-limiting protrusion; 22-retaining ring;

[0042] 11- tooling ring connecting shaft; 111- first step shaft; 112- second step shaft. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making creative efforts shall fall within the scope of protection of the present invention.

[0044] like Figure 1 、 2 As shown in 5, Figure 1 A schematic diagram of a tool for painting a vehicle rear hatch door according to an embodiment of the present invention is shown; Figure 2A schematic diagram of the top view of the structure of the tooling for painting a vehicle rear cover flat door according to an embodiment of the present invention is shown; Figure 5 Schematic diagram showing the installation positions of the tooling ring connecting shaft 11, the tooling ring 1, the spring 7, the grooved washer 8 and the second nut 12 in an embodiment of the present invention; Figure 1 、 2 and 5. A tool for painting a vehicle rear cover flat door, comprising:

[0045] The tooling support seat 4 is an inverted U-shaped structure and is fixedly mounted on the vehicle rear cover flat door;

[0046] The spring housing 2 is fixedly mounted on the outside of the tooling support seat 4, and the spring housing 2 is located on the side away from the opening of the U-shaped structure; a retaining ring 22 is provided at one end of the spring housing 2 away from the tooling support seat 4; by providing the spring housing 2, it is prevented that some debris or paint enters between the spring 7 and the tooling ring connecting shaft 11, thereby causing the spring to rust or accumulate paint, thereby causing trouble in cleaning, and affecting the service life of the spring 7, resulting in high frequency and high cost of repair and maintenance of the spring 7.

[0047] The tooling ring 1 is located at the end of the spring housing 2 away from the tooling support seat 4. A tooling ring connecting shaft 11 is provided on the side of the tooling ring 1 close to the spring housing 2, and the tooling ring connecting shaft 11 is slidably installed in the spring housing 2; a limiting member 30 is provided at the end of the tooling ring connecting shaft 11 close to the tooling support seat 4; preferably, the tooling ring 1 is a rectangular ring.

[0048] Spring 7, spring 7 is installed on the outside of the tooling ring connecting shaft 11, and the spring 7 is located inside the spring housing 2; one end of the spring 7 contacts the limit member 30, and the other end of the spring 7 contacts the retaining ring 22 of the spring housing 2; the distance between the retaining ring 22 and the grooved gasket 8 is less than the natural length of the spring 7, so the spring is in a compressed state.

[0049] Among them, when the robot opens the rear cover swing door, the robot's hook contacts the tooling ring 1, causing the tooling ring 1 to move along the axis direction of the spring housing 2 away from the tooling support seat 4. The tooling ring 1 overcomes the elastic force of the spring 7, thereby overcoming the error for robot recognition.

[0050] In the embodiment of the present invention, a first nut 9 is provided on the tool support base 4. The first nut 9 is perpendicular to the opening direction of the U-shaped structure, and a fixing bolt 3 is threadedly installed on the first nut 9. The fixing bolt 3 fixes the tool support base 4 to the raised iron plate of the vehicle's rear hatch door, thereby preventing the tool from moving along the raised iron plate of the vehicle's rear hatch door, causing inaccurate recognition by the robot during the process of opening the vehicle's rear hatch door, and further causing malfunctions during the opening process, resulting in unnecessary economic losses.

[0051] In the above embodiment, another optional implementation is to provide a connecting rod 10 on the outside of the tool support base 4, located away from the fixing bolt 3. A locating pin 5 is installed on the end of the connecting rod 10 away from the tool support base 4. The locating pin 5 is located in the direction of the U-shaped opening of the tool support base 4. Secondary positioning is achieved by inserting the locating pin 5 into the circular hole of the vehicle's rear hatch. By changing the locating pin 5 to different thicknesses according to the size of the circular hole, it can be adapted to different vehicle models.

[0052] In the above embodiment, another optional implementation is to replace the positioning pins 5 with different diameters to connect with the connecting rod 10 according to the different sizes of the holes on the rear cover flat door of different car models.

[0053] The positioning pin 5 is located in the U-shaped opening direction of the tool support base 4. By inserting the positioning pin 5 into the circular hole of the vehicle's rear cover flat door, secondary positioning is achieved. By replacing the positioning pin 5 with different thicknesses according to the circular hole of different sizes, it can be adapted to different vehicle models.

[0054] In the implementation of the present invention, the tooling ring connecting shaft 11 is coaxial with the spring housing 2 .

[0055] like Figure 5 and 6 As shown, Figure 5 A schematic diagram showing the installation positions of the tooling ring connecting shaft 11, the tooling ring 1, the spring 7, the grooved washer 8 and the second nut 12 in an embodiment of the present invention is shown; Figure 6 Shown Figure 5 A magnified schematic diagram of the local structure at B in the middle. Figure 5 and 6 , the tooling ring connecting shaft 11 includes:

[0056] A first stepped shaft 111, one end of the first stepped shaft 111 is fixedly connected to the outside of the tooling ring 1, and a second stepped shaft 112 is located at the end of the first stepped shaft 111 away from the tooling ring 1, and the other end of the first stepped shaft 111 is fixedly connected to the second stepped shaft 112, and a thread is provided on the second stepped shaft 112, and the diameter of the second stepped shaft 112 is smaller than the diameter of the first stepped shaft 111;

[0057] The limiting member 30 includes a second nut 12 , which is threadably mounted on the thread.

[0058] The spring 7 is mounted on the first stepped shaft 111 and is in contact with one end of the spring 7 through the first nut 9;

[0059] In the above embodiment, another optional implementation is that the first step shaft 111 and the second step shaft 112 are coaxial.

[0060] The limiting member 30 further includes:

[0061] The grooved gasket 8 is installed on the second stepped shaft 112 , and the grooved gasket 8 is located between the first stepped shaft 111 and the second nut 12 .

[0062] Specifically, two symmetrical limit grooves are provided on the grooved gasket 8, and two symmetrical limit protrusions 21 are provided on the inner side of the spring housing 2; the two limit grooves are slidably installed on the two limit protrusions 21, thereby ensuring that the grooved gasket 8 and the tooling ring connecting shaft 11 and the tooling ring 1 move along the axial direction of the tooling ring connecting shaft 11, thereby ensuring that the tooling ring 1 and the tooling support seat 4 will not rotate relative to each other, thereby preventing the tooling ring 1 from rotating and causing inaccurate robot recognition.

[0063] like Figure 2 and 3 As shown, Figure 2 A schematic diagram of the top view of the structure of the tooling for painting a vehicle rear cover flat door according to an embodiment of the present invention is shown; Figure 3 Shown Figure 2 A schematic diagram of the enlarged local structure at point A; Figure 2 and 3 , a limiting groove is provided on the grooved gasket 8;

[0064] A limiting protrusion 21 is provided inside the spring housing 2 , and the limiting groove is slidably connected to the limiting protrusion 21 .

[0065] The limiting protrusion 21 is used to limit the grooved gasket 8 to prevent the grooved gasket 8 from rotating, thereby limiting the tooling ring 1 to prevent the tooling ring 1 from rotating, so that the tooling ring 1 remains parallel to the tooling support seat 4.

[0066] A threaded hole is provided on the spring housing 2, and a gasket top screw 6 is threadedly installed in the threaded hole.

[0067] Specifically, two threaded holes are symmetrically provided on the outside of the spring housing 2 near the tooling support seat 4, and a gasket top screw 6 is threadedly installed in the threaded hole. The gasket top screw 6 is used to limit the downward movement of the tooling ring connecting shaft 11, so that there is a gap between the tooling ring 1 and the spring housing 2, thereby conveniently preventing the tooling ring 1 from contacting the spring housing 2 and damaging the spring housing 2 for a long time.

[0068] Working principle:

[0069] When using this device, first install the tool on the vehicle's rear hatch door that needs to be opened. Specifically, the tool support base 4 is fixedly connected to the raised iron plate of the vehicle's rear hatch door via fixing bolts 3, thereby preventing the tool from moving along the raised iron plate of the vehicle's rear hatch door. Next, the positioning pin 5 is inserted into the circular hole of the vehicle's rear hatch door to achieve secondary positioning. By replacing the positioning pin 5 with different thicknesses according to the circular hole size, it can be adapted to different vehicle models.

[0070] When the robot opens the vehicle's rear hatch, the robot's hook contacts the tooling ring 1, allowing the robot to identify the vehicle's rear hatch, thereby facilitating the robot's subsequent work. Due to errors in the production process of the vehicle's rear hatch, errors in the sled, errors caused by the vehicle falling on the sled, and errors in the tooling itself caused by paint accumulation in the later stage, a spring 7 is installed on the tooling ring connecting shaft 11 of the tooling ring 1, and the spring 7 is in a compressed state. When the tooling ring 1 contacts the robot's hook, the tooling ring 1 will continue to move along the tooling ring connecting shaft 11 toward the tooling ring 1, and will then press again. The compression spring 7 (one end of the spring 7 contacts the grooved gasket 8 of the tooling ring connecting shaft 11, and the other end of the spring 7 contacts the retaining ring 22 of the spring housing 2, that is, the spring 7 is located between the retaining ring 22 and the grooved gasket 8; the tooling ring 1 moves in the direction away from the support seat 4, and at this time the grooved gasket 8 moves in the direction of the retaining ring 22, and the retaining ring 22 is stationary, thereby compressing the distance between the grooved gasket 8 and the retaining ring 22, and then the spring 7 continues to compress), and then the tooling ring 1 will generate a pulling force in the direction of the tooling support seat 4, and the tooling ring 1 will transmit the pulling force to the hook of the robot, and the hook of the robot will be under pressure to achieve recognition.

[0071] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tool for painting a vehicle rear cover flat door, characterized in that: include: A tool support seat (4), the tool support seat (4) is an inverted U-shaped structure, and the tool support seat (4) is fixedly mounted on the flat door of the rear cover of the vehicle; A spring housing (2), the spring housing (2) being fixedly mounted on a side of the tool support seat (4) away from the opening of the inverted U-shaped structure; a retaining ring (22) is provided at one end of the spring housing (2) away from the tool support seat (4); A tooling ring (1), the tooling ring (1) being located at one end of the spring housing (2) away from the tooling support seat (4), a tooling ring connecting shaft (11) being provided on a side of the tooling ring (1) close to the spring housing (2), the tooling ring connecting shaft (11) being slidably mounted in the spring housing (2); and a limiting member (30) being provided at one end of the tooling ring connecting shaft (11) close to the tooling support seat (4); A spring (7), wherein the spring (7) is arranged on the outer wall of the tooling ring connecting shaft (11), and the spring (7) is located inside the spring housing (2); one end of the spring (7) contacts the limiting member (30), and the other end of the spring (7) contacts the retaining ring (22); In the process of the robot opening the rear cover flat door, the hook of the robot contacts the tooling ring (1), so that the tooling ring (1) moves along the axis direction of the spring housing (2) in a direction away from the tooling support seat (4), and the tooling ring (1) overcomes the elastic force of the spring (7), thereby overcoming the error for robot recognition.

2. The tool for painting a vehicle rear cover flat door according to claim 1, characterized in that: A first nut (9) is provided on the tool support seat (4), the first nut (9) being perpendicular to the opening direction of the inverted U-shaped structure, and a fixing bolt (3) is threadedly mounted on the first nut (9); the fixing bolt (3) is used to fix the tool support seat (4) to the vehicle rear cover flat door.

3. The tool for painting a vehicle rear cover flat door according to claim 2, characterized in that: A connecting rod (10) is provided on the tool support seat (4), and the connecting rod (10) is located on a side away from the fixing bolt (3); a positioning pin (5) is installed on the end of the connecting rod (10) away from the tool support seat (4).

4. The tool for painting a vehicle rear cover flat door according to claim 3, characterized in that: According to the different sizes of the holes on the rear cover flat door of different car models, positioning pins (5) of different diameters are replaced to connect with the connecting rod (10).

5. The tool for painting a vehicle rear cover flat door according to claim 1, characterized in that: The tooling ring connecting shaft (11) is coaxial with the spring housing (2).

6. The tool for painting a vehicle rear cover flat door according to claim 1 or 5, characterized in that: The tooling ring connecting shaft (11) comprises: a first stepped shaft (111), one end of the first stepped shaft (111) being fixedly connected to the outside of the tooling ring (1), the other end of the first stepped shaft (111) being fixedly connected to the second stepped shaft (112), the second stepped shaft (112) being located at an end of the first stepped shaft (111) away from the tooling ring (1), a thread being provided on the second stepped shaft (112), and a diameter of the second stepped shaft (112) being smaller than a diameter of the first stepped shaft (111); A limiting member (30), the limiting member (30) comprising a second nut (12), the second nut (12) being threadedly mounted on the thread.

7. The tool for painting a vehicle rear cover flat door according to claim 6, characterized in that: The first step shaft (111) and the second step shaft (112) are coaxial.

8. The tool for painting a vehicle rear cover flat door according to claim 7, characterized in that: The limiting member (30) further includes: A grooved gasket (8), wherein the grooved gasket (8) is mounted on the second stepped shaft (112), and the grooved gasket (8) is located between the first stepped shaft (111) and the second nut (12).

9. The tool for painting a vehicle rear cover flat door according to claim 8, characterized in that: The grooved gasket (8) is provided with a limiting groove; A limiting protrusion (21) is provided inside the spring housing (2), and the limiting groove is slidably connected to the limiting protrusion (21); the groove-shaped gasket (8) is limited by the limiting groove to further limit the tooling ring (1), so that the tooling ring (1) will not rotate relative to the tooling support seat (4).

10. The tool for painting a vehicle rear cover flat door according to claim 9, characterized in that: A threaded hole is provided on the spring housing (2), and a gasket top screw (6) is threadedly installed in the threaded hole.

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