Multi-color changing mechanical arm

Abstract

The utility model relates to the field of spraying robots, and particularly discloses a multi-color color changing mechanical arm which is characterized by comprising a mechanical arm assembly and a color changing valve block set, the mechanical arm assembly comprises a base, a first mechanical arm and a second mechanical arm, one end of the second mechanical arm is connected with the base, and the other end of the second mechanical arm is connected with the color changing valve block set. The other end of the second mechanical arm is connected with the first mechanical arm, and a mounting structure detachably connected with the color changing valve blocks is arranged on the second mechanical arm and used for enabling the multiple color changing valve blocks to form color changing valve sets arranged in an array mode on the second mechanical arm. According to the utility model, the color changing valve block group is arranged on the second mechanical arm, so that the weight load on the first mechanical arm is reduced, and the spraying of the spraying robot is more flexible; and a mounting structure detachably connected with the color changing valve block group is arranged on the second mechanical arm, so that the operation is better when the number of single color changing valve blocks needs to be increased or decreased.

Description

Technical Field

[0001] The utility model relates to the field of spraying robots, in particular to a multi-color changing mechanical arm. Background Art

[0002] With the increasing number of paint colors and the increasing application of spray robots replacing manual spraying, the space required for the robot arm to install the color-changing valve block is getting larger and larger. Multiple color-changing valve blocks are arranged in a linear array to form a color-changing valve block group. That is, with the increase in the number of paint colors, the color-changing valve block installed on the spray robot arm becomes a color-changing valve block group. Usually, in order to facilitate the arrangement and routing of the paint pipe, the color-changing valve block group is directly installed on the U-axis of the robot arm, that is, on the arm away from the base. However, with the increasing number of spray colors, the space for installing the color-changing valve block on the U-axis of the robot arm is limited. Especially when the total weight of the color-changing valve block exceeds the maximum load of the robot arm, this installation method seriously affects the robot's spraying action, thereby affecting the spraying effect. Utility Model Content

[0003] In order to solve the problem in the prior art that the total weight of the color-changing valve block exceeds the maximum load of the robot arm, the utility model provides a multi-color color-changing robot arm.

[0004] The technical solution adopted by the utility model is: a multi-color color-changing mechanical arm, including a mechanical arm assembly and a color-changing valve block group, the mechanical arm assembly includes a base, a first mechanical arm and a second mechanical arm, one end of the second mechanical arm is connected to the base, and the other end of the second mechanical arm is connected to the first mechanical arm, and the second mechanical arm is provided with a mounting structure detachably connected to the color-changing valve block, which is used to form a color-changing valve block group arranged in an array on the second mechanical arm with multiple color-changing valve blocks.

[0005] Furthermore, a first groove is provided on the second mechanical arm, the first groove is provided along the length direction of the second mechanical arm, a guide rail is provided in the first groove, a mounting hole for mounting in the first groove is provided on the guide rail, and the color-changing valve block assembly is slidably connected to the guide rail.

[0006] Furthermore, a first support member is also provided on the second mechanical arm, and the first support member is located at an end of the first groove away from the first mechanical arm.

[0007] Furthermore, a support rod is provided on the first support member, one end of the support rod is connected to the first support member, and the other end of the support rod is connected to the second mechanical arm; the support rods are at least two, and the support rods include a first rod body and a second rod body, the first rod body is located at one end of the support rod away from the second mechanical arm, and the first rod body and the second rod body are slidably connected for adjusting the distance between the first support member and the second mechanical arm.

[0008] Furthermore, a second groove for accommodating the paint output tube is provided on the first mechanical arm, and the second groove is provided along the length direction of the first mechanical arm.

[0009] Furthermore, at least two second support members are also provided on the first robotic arm, and the two second support members are respectively located at two ends of the second groove in the length direction.

[0010] Furthermore, the second supporting member is a bellows buckle, which is used to fix the paint output pipe on the first robot arm.

[0011] Furthermore, the first mechanical arm is provided with an outlet for the paint output tube to pass through, the outlet is docked with the second groove, and the outlet is located at an end of the first mechanical arm away from the second mechanical arm.

[0012] The beneficial effects of the utility model are: 1. By arranging the color-changing valve block group on the second mechanical arm, the weight load on the first mechanical arm is reduced, making the spraying robot more flexible in spraying;

[0013] 2. A mounting structure detachably connected to the color-changing valve block group is provided on the second robotic arm to facilitate better operation when a single color-changing valve block needs to be added or reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a multi-color color-changing mechanical arm of the utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of a multi-color color-changing mechanical arm of the utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the color-changing valve block assembly installed on a multi-color color-changing robot arm;

[0017] Figure 4 is a structural schematic diagram of the slide rail;

[0018] Figure 5 is a schematic structural diagram of a first supporting member;

[0019] Figure 6This is a schematic diagram of the arrangement of pigment tubes and paint output tubes on a multi-color color-changing robot.

[0020] Figure numerals: 1. base, 2. first mechanical arm, 3. second mechanical arm, 31. first groove, 311. guide rail, 3111. mounting hole, 4. first support member, 5. support rod, 51. first rod body, 52. second rod body, 6. second groove, 7. second support member, 8. outlet, 9. paint tube, 10. paint output tube, 100. color-changing valve block group. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0022] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other examples, in order to avoid obscuring the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0023] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] The utility model relates to a multi-color color-changing mechanical arm, comprising a mechanical arm assembly and a color-changing valve block group 100, wherein the mechanical arm assembly comprises a base 1, a first mechanical arm 2 and a second mechanical arm 3, wherein one end of the second mechanical arm 3 is connected to the base 1, and the other end of the second mechanical arm 3 is connected to the first mechanical arm 2, and the second mechanical arm 3 is provided with a mounting structure detachably connected to the color-changing valve block, so as to enable a plurality of color-changing valve blocks to form a color-changing valve group 100 arranged in an array on the second mechanical arm 3.

[0028] Specifically, as the application of spray robots is becoming more and more extensive and the number of colors is increasing, the number of colors sprayed by spray robots is also increasing. Usually, considering the wiring problem of the spray pipe, the color-changing valve block group 100 is installed on the arm of the spray robot away from the base 1, that is, the U-axis. However, due to the increase in the number of colors, the volume and weight of the color-changing valve block group 100 continue to increase, and the weight load borne by the arm of the robot away from the base 1 is also increasing, and gradually affects the flexibility and spraying effect of the robot arm. Therefore, based on this, the applicant installs the color-changing valve block group 100 on the arm close to the base 1, that is, on the well-known L-axis, and in order to facilitate the addition or reduction of a single color-changing valve block, a mounting structure detachably connected to the color-changing valve block is provided on the L-axis, and the mounting structure can be a mounting block with a plurality of mounting holes opened thereon, and the mounting block can be in an "I" shape, at this time, the mounting holes are opened on two long sides parallel to each other of the I-shaped mounting block; the mounting block can also be a whole plate, and the mounting holes are in two rows, which are symmetrically arranged along the center line of the length direction of the mounting block.

[0029] It should be noted that since the specific structures of the U-axis, L-axis and base 1 of the robot arm and the color-changing valve block group 100 are all prior arts, the connection relationship between the axes and the working principle of the color-changing valve block group 100 will no longer be described in detail in this application, but only the installation and connection relationship between the color-changing valve block group 100 and the L-axis and U-axis will be described.

[0030] Example 2

[0031] This embodiment is an improvement made on the basis of the embodiment 1, and the difference lies in that a first groove 31 is provided on the second mechanical arm 3, the first groove 31 is provided along the length direction of the second mechanical arm 3, a guide rail 311 is provided in the first groove 31, and a mounting hole 3111 for mounting in the first groove 31 is provided on the guide rail 311, and the color-changing valve block group 100 is slidably connected to the guide rail 311.

[0032] Specifically, Figure 1 , 2As shown in FIG. 4 , the sliding connection method in the present application is specifically as follows: a first groove 31 is provided along the length direction of the second mechanical arm 3, a guide rail 311 is arranged in the first groove 31, the guide rail 311 is in an “I” shape, and both ends of the I-shaped guide rail 311 have a limiting function to prevent the color-changing valve block assembly 100 from sliding out of the guide rail 311, and a mounting hole 3111 for mounting in the first groove 31 is provided on the guide rail 311, and the mounting hole 3111 is located at both ends of the length direction of the guide rail 311; at the same time, a protrusion matching the guide rail 311 is provided at the bottom of the color-changing valve block assembly 100, that is, on the surface facing the guide rail 311 and connected to the guide rail 311, and there are two protrusions, which are respectively located at both ends of the width direction of the color-changing valve block assembly 100.

[0033] In addition, the sliding connection design also enables the color-changing valve block assembly 100 to closely match the guide rail 311, thereby achieving flexible installation and removal on the robot arm, which not only improves production efficiency but also reduces operational difficulty.

[0034] Example 3

[0035] This embodiment is an improvement made on the basis of the embodiment 2, and the difference lies in that a first support member 4 is further provided on the second mechanical arm 3 , and the first support member 4 is located at an end of the first groove 31 away from the first mechanical arm 2 .

[0036] Specifically, since the color-changing valve block group 100 is connected to different pigment tubes 9 and air tubes, in order to arrange all the tubes in an orderly manner on the robot arm, such as Figure 1 , 2 As shown in Figure 6, a first support member 4 is provided on the second mechanical arm 3 for supporting the above-mentioned pipe. The first support member 4 can be a support rod 5 or a support plate, which is fixed to the second mechanical arm 3 by bolts, and there is a certain space between the first support member 4 and the second mechanical arm 3, so that the above-mentioned pipe can pass through the space.

[0037] Example 4

[0038] This embodiment is an improvement on the basis of Embodiment 3, the difference being that a support rod 5 is provided on the first support member 4, one end of the support rod 5 is connected to the first support member 4, and the other end of the support rod 5 is connected to the second robotic arm 3; there are at least two support rods 5, and the support rods 5 include a first rod body 51 and a second rod body 52, the first rod body 51 is located at the end of the support rod 5 away from the second robotic arm 3, and the first rod body 51 and the second rod body 52 are slidably connected for adjusting the distance between the first support member 4 and the second robotic arm 3.

[0039] Specifically, as the number of pigment types increases, the volume of the color-changing valve block assembly 100 also increases, and the number of paint pipes and air pipes connected to the color-changing valve block assembly 100 also increases accordingly. Therefore, in order to adapt to the increasing number of pipes, such as Figure 5 As shown, a support rod 5 can also be set on the first support member 4, and the number of support rods 5 is at least two, which are respectively located at the two ends of the length direction of the first support member 4, that is, the above-mentioned tube can be directly confined in the space formed by the support rod 5 and the first support member 4. The support rod 5 includes a first rod body 51 and a second rod body 52, wherein the first rod body 51 is located at one end of the support rod 5 away from the second mechanical arm 3, and the support rod 5 is retractable. In this way, when the tube is increased, the support rod 5 can be adjusted to make the support member farther away from the second mechanical arm 3, that is, the space for accommodating the tube is larger, so that the mechanical arm in the present application can arbitrarily increase or decrease the color-changing valve block group 100, so that it is more flexible to use.

[0040] The retractability here can be achieved by threaded connection between the first rod body 51 and the second rod body 52; it can also be achieved by providing a locking mechanism such as bolt fixation, that is, holes are opened on the first rod body 51 and the second rod body 52, and the relative position between the first rod body 51 and the second rod body 52 is fixed by bolts and holes to prevent sliding during use. Other methods that can achieve the retractable connection between the first rod body 51 and the second rod body 52 all fall within the protection scope of the present application.

[0041] Example 5

[0042] This embodiment is an improvement made on the basis of the embodiment 1, and the difference lies in that a second groove 6 for accommodating the paint output tube 10 is provided on the first robot arm 2, and the second groove 6 is provided along the length direction of the first robot arm 2.

[0043] Specifically, since the color-changing valve block assembly 100 has a paint output pipe 10, and the paint output pipe 10 needs to be connected to the spraying end of the robot arm, Figure 1 , 2 As shown in FIG. 6 , in order to smoothly connect the paint output tube 10 from the second robot arm 3 to the spray end, a second groove 6 for accommodating the paint output tube 10 is further provided on the first robot arm 2 along its length direction.

[0044] Example 6

[0045] This embodiment is an improvement made on the basis of Embodiment 5, and the difference lies in that at least two second support members 7 are also provided on the first robotic arm 2, and the two second support members 7 are respectively located at the two ends of the second groove 6 in the length direction.

[0046] Similarly, in order to fix the paint output pipe 10 in the first robot arm 2, as shown in FIG. Figure 1 , 2 As shown in FIG6 , at least two second support members 7 are further provided on the first mechanical arm 2 . The second support members 7 can also be support rods 5 or support blocks, which are fixed to the first mechanical arm 2 by bolts.

[0047] In addition, in order to further improve the flexibility and adaptability of the first robot arm 2, an adjustment mechanism can be provided on the second support member 7, and the height and angle of the support member can be adjusted according to actual needs. In this way, whether on a flat work surface or in an uneven environment, the first robot arm 2 can maintain a stable posture to ensure the accuracy and efficiency of the work.

[0048] Example 7

[0049] This embodiment is an improvement made on the basis of Embodiment 6, the difference being that the second support member 7 is a bellows clip for fixing the paint output pipe 10 on the first robot arm 2 .

[0050] Specifically, since the paint output pipe 10 is generally a bellows, and the second support member 7 does not involve the adjustment of the space of the pipe, for the sake of simplicity, the present application directly uses a bellows buckle as the second support member 7. This buckle is not only easy to install and disassemble, but also has excellent durability and can withstand various pressures and vibrations generated by the paint output pipe 10 during operation.

[0051] In addition, the bellows clip also adopts a special anti-slip design to ensure that when the paint output pipe 10 is impacted by external force, the clip can still firmly fix the pipe to avoid accidents.

[0052] Example 8

[0053] This embodiment is an improvement on the embodiment 1, the difference being that an outlet 8 for the paint output pipe 10 to pass through is provided on the first robotic arm 2, the outlet 8 is docked with the second groove 6, and the outlet 8 is located at the end of the first robotic arm 2 away from the second robotic arm 3.

[0054] Specifically, since the paint output pipe 10 needs to be connected to the spraying end of the robot arm, in order to make the connection tight and the integrity of the entire device higher, Figure 6 As shown, an outlet 8 for the paint output pipe 10 to pass through is opened on the first robot arm 2, and the outlet 8 is docked with the second groove 6, that is, the paint output pipe 10 extends from the second robot arm 3, passes through the second groove 6 on the first robot arm 2, and finally extends through the outlet 8 on the first robot arm 2 to dock with the spraying end, thereby realizing the transmission of paint.

[0055] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A multi-color color-changing robot arm, characterized in that: The invention comprises a mechanical arm assembly and a color-changing valve block group. The mechanical arm assembly comprises a base, a first mechanical arm and a second mechanical arm. One end of the second mechanical arm is connected to the base, and the other end of the second mechanical arm is connected to the first mechanical arm. The second mechanical arm is provided with a mounting structure detachably connected to the color-changing valve block, so that a plurality of color-changing valve blocks form a color-changing valve block group arranged in an array on the second mechanical arm.

2. The multi-color color-changing robot arm according to claim 1, characterized in that: The second mechanical arm is provided with a first groove, which is provided along the length direction of the second mechanical arm. A guide rail is provided in the first groove, and a mounting hole for mounting in the first groove is provided on the guide rail. The color-changing valve block assembly is slidably connected to the guide rail.

3. The multi-color color-changing robot arm according to claim 2, characterized in that: The second mechanical arm is also provided with a first support member, and the first support member is located at an end of the first groove away from the first mechanical arm.

4. The multi-color color-changing robot arm according to claim 3, characterized in that: A support rod is provided on the first support member, one end of the support rod is connected to the first support member, and the other end of the support rod is connected to the second mechanical arm; there are at least two support rods, and the support rods include a first rod body and a second rod body, the first rod body is located at an end of the support rod away from the second mechanical arm, and the first rod body and the second rod body are slidably connected for adjusting the distance between the first support member and the second mechanical arm.

5. The multi-color color-changing robot arm according to claim 1, characterized in that: The first mechanical arm is provided with a second groove for accommodating the paint output tube, and the second groove is provided along the length direction of the first mechanical arm.

6. The multi-color color-changing robot arm according to claim 5, characterized in that: At least two second support members are also provided on the first mechanical arm, and the two second support members are respectively located at two ends of the second groove in the length direction.

7. The multi-color color-changing robot arm according to claim 6, characterized in that: The second supporting member is a bellows buckle, which is used to fix the paint output pipe on the first mechanical arm.

8. The multi-color color-changing robot arm according to claim 1, characterized in that: The first mechanical arm is provided with an outlet for the paint output tube to pass through, the outlet is docked with the second groove, and the outlet is located at an end of the first mechanical arm away from the second mechanical arm.

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