A small quick-change structure and a high-pressure glue spraying nozzle switching system

Abstract

The present invention discloses a small quick-change structure and a high-pressure glue spraying nozzle switching system. Among them, the small quick-change structure includes: a connecting block; a connecting sleeve, the connecting sleeve is arranged at the lower end of the connecting block, the connecting sleeve is provided with a plurality of guiding grooves, and the connecting sleeve is provided with a plurality of through ports; a contact sleeve block, a channel is formed inside the contact sleeve block, and an inclined annular surface is formed at the lower part of the channel; a plurality of guiding pins, the plurality of guiding pins are uniformly arranged along the circumferential direction of the channel, and the guiding pins are slidably arranged in the guiding grooves; a plurality of limiting beads, the limiting beads are arranged in the through ports; a sub-body part, an annular groove is formed by inward indentation along the circumferential direction at the upper part of the sub-body part, and the limiting beads can all move and abut against the annular groove. By applying the present invention, it is convenient to quickly and conveniently replace the sub-body part, and the connection between the sub-body part and the small quick-change structure is stable, not easy to loosen, and the internal sealing effect is good; it can also be matched with the corresponding high-pressure glue spraying nozzle system to quickly complete the replacement of the corresponding sub-body part and carry out efficient glue spraying work.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial glue application, and particularly relates to a small quick-change structure and a high-pressure glue spraying nozzle switching system. Background Art

[0002] With the further popularization of industrial robot technology, more and more automobile manufacturing enterprises have started to use fully automated robot production lines to produce various parts of the automobile separately and then assemble them centrally, thereby further improving the production efficiency of the automobile. Among them, in the process of ensuring the functionality of the automobile, corresponding high-pressure glue application operations are required, such as body sealing, sound insulation, and anti-chip stone. In the existing industrial robot technology, a corresponding glue gun and a special process nozzle are often installed at the mechanical hand end of the robot to complete the corresponding glue application work. However, in the actual glue application work process, due to the complexity of the body structure and spraying process, a single glue gun and nozzle combination structure cannot meet the corresponding multiple requirements, and only by increasing the process stations or manually changing the models of the robot's glue gun and nozzle can the spraying requirements be met. This will increase more costs or sacrifice the production rhythm, greatly affecting the production efficiency. Summary of the Invention

[0003] In view of this, to solve the above problems, the purpose of the present invention is to provide a small quick-change structure, including:

[0004] A connecting block;

[0005] A connecting sleeve, the connecting sleeve is arranged at the lower end of the connecting block, and a plurality of guiding grooves are arranged along the circumferential direction on the upper part of the connecting sleeve, and a plurality of through ports are arranged along the circumferential direction on the lower part of the connecting sleeve;

[0006] A contact sleeve block, a vertically penetrating channel is formed inside the contact sleeve block, and an inclined annular surface is formed at the lower part of the channel, and the inner contour of the inclined annular surface gradually increases from top to bottom;

[0007] A plurality of guiding pins, the plurality of guiding pins are uniformly arranged along the circumferential direction of the upper part of the channel, and one end of each guiding pin is slidably arranged in one of the guiding grooves;

[0008] A plurality of limiting beads, each limiting bead is movably arranged in the through port under the extrusion of the inclined annular surface;

[0009] A sub-body member, the upper part of the sub-body member extends into the connecting sleeve from bottom to top, and an annular groove is formed by inwards recessing along the circumferential direction on the upper part of the sub-body member, and each limiting bead can be movably abutted in the annular groove;

[0010] An elastic component, the elastic component is arranged between the connecting block and the contact sleeve block and can elastically expand and contract in the vertical direction.

[0011] In another preferred embodiment, the connection sleeve is operably in a locked state or an unlocked state with respect to the sub-body member.

[0012] In another preferred embodiment, the guiding groove is provided in a rounded rectangular shape, the length direction of the guiding groove is arranged along the circumferential direction of the connection sleeve, and the guiding groove includes a first guiding space and a second guiding space that communicate with each other in the horizontal direction. The lower edge of the first guiding space is inclined, the lower edge of the second guiding space is horizontal, and the height of the end of the lower edge of the first guiding space away from the second guiding space is inclined downward.

[0013] In another preferred embodiment, when in the locked state, one end of the guiding pin abuts against the lower edge of the first guiding space, and the limiting bead abuts against the inner wall of the channel; when in the unlocked state, one end of the guiding pin abuts against the lower edge of the second guiding space, and the limiting bead abuts against the inclined annular surface.

[0014] In another preferred embodiment, the lower edge of the first guiding space is inclined at an angle of 20° with respect to the horizontal direction.

[0015] In another preferred embodiment, the horizontal outer contour of the connection sleeve is smaller than the horizontal outer contour of the connection block. A plurality of mounting grooves are provided on the outer edge of the upper surface of the contact sleeve block, each mounting groove is opened upward, a spring is installed in each mounting groove, a tensioning column is installed on the upper part of each spring, and the upper end of each tensioning column abuts against the outer edge of the lower surface of the connection block. The plurality of tensioning columns and the plurality of springs together form the elastic component.

[0016] In another preferred embodiment, the generatrix of the inclined annular surface is inclined at an angle of 30° with respect to the vertical direction.

[0017] In another preferred embodiment, a first annular surface and a second annular surface are formed on the inner side of the annular groove. The first annular surface and the second annular surface are connected to each other up and down. The lower part of the first annular surface is inclined inward relative to the upper part, and the upper part of the second annular surface is inclined inward relative to the lower part.

[0018] In another preferred embodiment, the generatrix of the first annular surface is inclined at an angle of 30° with respect to the horizontal direction.

[0019] In another preferred embodiment, a downwardly concave slot is formed in the upper part of the sub-body member, and a plug block extends downward from the lower end of one side of the connection sleeve. The plug block is matched with the slot.

[0020] The present invention also provides a high-pressure glue spray nozzle switching system, comprising any one of the small quick-change structures described above, and further comprising: a robot and a glue injection pipeline, wherein the robot is connected to an end of the connection block away from the connection sleeve, one end of the glue injection pipeline is connected to the robot, and the other end of the glue injection pipeline passes through the connection block and is connected to the upper end of the sub-body;

[0021] The sub-body part is a nozzle structure, and the sub-body part includes a connector, a flange, a neck and a nozzle body connected in sequence from top to bottom. The annular groove is arranged on the circumferential outer wall of the connector. A plurality of glue coating channels are formed in the sub-body part. One end of the glue coating channel passes through the connector and forms a glue outlet hole, and the other end of the glue coating channel passes through the connector and is connected to the other end of the glue injection pipeline.

[0022] In another preferred embodiment, at least two of the sub-body parts are included, and further include: a replacement rack, a mounting plate, at least two sensors and at least two fixtures, wherein the mounting plate is fixedly mounted on the replacement rack, the two fixtures are both mounted on the mounting plate, the two sensors are both mounted on the mounting plate, the two sensors are respectively arranged above or below the two fixtures, each of the fixtures is matched with a sub-body part, the sub-body part is operably placed on the fixture, and the connecting sleeve is controlled to be sleeved with the upper end of the sub-body part under the operation of the robot;

[0023] In another preferred embodiment, a notch is formed on the fixture, and the side of the fixture facing away from the mounting plate is open, a supporting edge is formed on the inner side of the notch, an annular insertion groove is formed between the flange and the nozzle body, the annular insertion groove matches the supporting edge, and the flange matches the notch.

[0024] Due to the adoption of the above-mentioned technical scheme, the present invention has the following positive effects compared with the prior art: through the application of the present invention, it is convenient to quickly and easily replace the sub-body parts, and the connection between the sub-body parts and the small quick-change structure is stable and not easy to loosen, and the internal sealing effect is good; it can also be matched with the corresponding high-pressure glue spraying nozzle system to quickly complete the corresponding replacement of the sub-body parts and perform efficient glue spraying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded schematic diagram of a small quick-change structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the installation of a small quick-change structure of the present invention;

[0027] Figure 3Schematic diagram of a connecting sleeve with a small quick-change structure of the present invention;

[0028] Figure 4 Internal schematic diagram of a small quick-change structure of the present invention (unlocked state);

[0029] Figure 5 Internal schematic diagram of a small quick-change structure of the present invention (locked state);

[0030] Figure 6 Schematic diagram of a sub-component of a small quick-change structure of the present invention;

[0031] Figure 7 Schematic diagram of the use of a replacement rack of a high-pressure glue spraying nozzle switching system of the present invention;

[0032] Figure 8 Schematic diagram of a fixture of a high-pressure glue spraying nozzle switching system of the present invention.

[0033] In the drawings:

[0034] 1. Connecting block; 2. Connecting sleeve; 21. Guide groove; 22. Through port; 3. Contact sleeve block; 31. Channel; 36. Tapered annular surface; 32. Guide pin; 4. Limit bead; 5. Sub-component; 51. Annular groove; 211. First guide space; 212. Second guide space; 33. Installation groove; 34. Spring; 35. Tension post; 511. First annular surface; 512. Second annular surface; 52. Slot; 23. Insert block; 11. Glue injection pipeline; 53. Connector; 54. Flange; 55. Neck; 56. Nozzle body; 57. Glue spraying channel; 58. Glue outlet hole; 6. Replacement rack; 7. Mounting plate; 8. Sensor; 9. Fixture; 91. Notch; 92. Support edge; 59. Circumferential insertion groove. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not limited to the present invention.

[0036] As Figures 1 to 5As shown in the figure, a small quick-change structure of a preferred embodiment is shown, including: a connection block 1; a connection sleeve 2, the connection sleeve 2 is arranged at the lower end of the connection block 1, and a plurality of guide grooves 21 are arranged along the circumferential direction on the upper part of the connection sleeve 2, and a plurality of through openings 22 are arranged along the circumferential direction on the lower part of the connection sleeve 2; a contact sleeve block 3, a channel 31 penetrating vertically is formed inside the contact sleeve block 3, an inclined annular surface 36 is formed at the lower part of the channel 31, and the inner contour of the inclined annular surface 36 gradually increases from top to bottom; a plurality of guide pins 32, the plurality of guide pins 32 are evenly arranged along the circumferential direction on the upper part of the channel 31, and one end of each guide pin 32 is slidably arranged in a guide groove 21; a plurality of limit beads 4, each limit bead 4 is movably arranged in the through opening 22 under the extrusion of the inclined annular surface 36; a sub-body part 5, the upper part of the sub-body part 5 extends into the connection sleeve 2 from bottom to top, and an annular groove 51 is formed by inward depression along the circumferential direction on the upper part of the sub-body part 5, and each limit bead 4 is movably abutted in the annular groove 51; an elastic component, the elastic component is elastically telescopic along the vertical direction and is arranged between the connection block 1 and the contact sleeve block 3; wherein, the connection sleeve 2 can be operably in a locked state or an unlocked state with the sub-body part 5. Further, by controlling the connection sleeve 2 to move up and down relative to the contact sleeve block 3, the limit beads 4 are driven to penetrate into the through openings 22 and be engaged with the annular groove 51 to form the above-mentioned locked state. Specifically, in the actual use process of the present invention, the connection sleeve 2 should be first inserted into the channel 31, that is, into the contact sleeve block 3, and then the plurality of guide pins 32 are installed. At this time, the connection block 1 is rotated and the guide pins 32 are driven into the first guide space 211. At this time, the vertical pressure on the connection block 1 is released, and the elastic component rebounds from the compressed state, so that the connection sleeve 2 moves upward relative to the contact sleeve block 3, and the limit beads 4 also move upward from the lower part of the inclined annular surface 36 and are gradually applied with an inward pressure and tightly abutted in the annular groove 51.

[0037] Further, as a preferred embodiment, the connection sleeve 2 is rotatably sleeved inside the contact sleeve block 3.

[0038] Further, as a preferred embodiment, the other ends of the plurality of guide pins 32 are fixedly connected to the contact sleeve block 3.

[0039] Further, as a preferred embodiment, the limit bead 4 is a steel ball.

[0040] Further, as a preferred embodiment, the guide groove 21 is arranged in a rounded rectangle, the length direction of the guide groove 21 is arranged along the circumferential direction of the connection sleeve 2, and the guide groove 21 includes a first guide space 211 and a second guide space 212 that are horizontally connected to each other. The lower edge of the first guide space 211 is inclined, the lower edge of the second guide space 212 is horizontal, and the height of the lower edge of the first guide space 211 far from the end of the second guide space 212 is inclined downward.

[0041] Further, as a preferred embodiment, when in the locked state, one end of the guiding pin 32 abuts against the lower edge of the first guiding space 211, and the limiting bead 4 abuts against the inner wall of the channel 31; when in the unlocked state, one end of the guiding pin 32 abuts against the lower edge of the second guiding space 212, and the limiting bead 4 abuts against the inclined annular surface 36.

[0042] Further, as a preferred embodiment, the lower edge of the first guiding space 211 is inclined at an angle of 20° with respect to the horizontal direction. Further, by providing such an inclined first guiding space 211, a smaller radial rotation torque is converted into a larger axial thrust.

[0043] Further, as a preferred embodiment, the horizontal outer contour of the connecting sleeve 2 is smaller than the horizontal outer contour of the connecting block 1. A plurality of mounting grooves 33 are provided at the outer edge of the upper surface of the contact sleeve block 3, each mounting groove 33 is arranged with an opening facing upwards, a spring 34 is installed in each mounting groove 33, an upper portion of each spring 34 is provided with a tensioning post 35, and the upper end of each tensioning post 35 abuts against the outer edge of the lower surface of the connecting block 1. The plurality of tensioning posts 35 and the plurality of springs 34 together form the elastic assembly.

[0044] Further, as a preferred embodiment, the upper end of each tensioning post 35 is a spherical head. Further, through the cooperation of the tensioning post 35 and the spring 34, the gap between the connecting block 1 and the contact sleeve block 3 is ensured, so that the inclined annular surface 36 can maintain a pre-tightening force on the limiting bead 4, thereby better locking the sub-body part 5, and the contact area is reduced by the spherical head structure, and the friction during rotation is reduced.

[0045] Further, as a preferred embodiment, the generatrix of the inclined annular surface 36 is inclined at an angle of 30° with respect to the vertical direction. Further, the thrust of the inclined annular surface 36 on the limiting bead 4 is ensured.

[0046] Further, as a preferred embodiment, a first annular surface 511 and a second annular surface 512 are formed inside the annular groove 51, the first annular surface 511 and the second annular surface 512 are connected up and down, the lower part of the first annular surface 511 is inclined inwards relative to the upper part, and the upper part of the second annular surface 512 is inclined inwards relative to the lower part.

[0047] Further, as a preferred embodiment, the generatrix of the first annular surface 511 is inclined at an angle of 30° with respect to the horizontal direction. Further, the limiting bead 4 is strengthened to transfer the radial thrust from the inclined annular surface 36 to the sub-body part 5.

[0048] Further, as a preferred embodiment, the generatrix of the second annular surface 512 is inclined at an angle of 30° with respect to the horizontal direction.

[0049] Further, as a preferred embodiment, a downwardly concave slot 52 is formed in the upper part of the sub-body member 5, and a plug 23 is formed by downward extension of the lower end of one side of the connecting sleeve 2. The plug 23 is matched with the slot 52. Further, during the installation process, the lower end of the connecting sleeve 2 and the sub-body member 5 do not rotate axially with respect to each other.

[0050] The above are only preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention accordingly.

[0051] The present invention further has the following implementation manners on the above basis:

[0052] As Figures 6 to 8 As shown, the present invention also discloses a high-pressure glue spraying nozzle switching system, which includes the small quick-change structure of any one of the above embodiments, and further includes: a robot and a glue injection pipeline 11. The robot is connected to the end of the connecting block 1 away from the connecting sleeve 2. One end of the glue injection pipeline 11 is connected to the robot, and the other end of the glue injection pipeline 11 passes through the connecting block 1 and is connected to the upper end of the sub-body member 5;

[0053] The sub-body member 5 is a nozzle structure, and the sub-body member 5 includes a connecting head 53, a flange 54, a neck 55, and a nozzle body 56 that are connected in sequence from top to bottom. The annular groove 51 is arranged on the outer circumferential wall of the connecting head 53. A plurality of glue spraying channels 57 are formed in the sub-body member 5. One end of the glue spraying channel 57 passes through the connecting head 53 and forms a glue outlet hole 58, and the other end of the glue spraying channel 57 passes through the connecting head 53 and is connected to the other end of the glue injection pipeline 11.

[0054] In a further embodiment of the present invention, sealing rings are provided at the upper end of the connecting head 53 and the lower end of the connecting block 1.

[0055] In a further embodiment of the present invention, the robot has at least one rotatable robotic arm, and the robotic arm is fixedly connected to the connecting block 1 and drives the connection to rotate and lift at a certain angle so that the connecting block 1 is connected to and locked with the sub-body member 5.

[0056] In a further embodiment of the present invention, at least two sub-body parts 5 are included, and also include: a replacement frame 6, a mounting plate 7, at least two sensors 8 and at least two fixtures 9, the mounting plate 7 is fixedly mounted on the replacement frame 6, the two fixtures 9 are both mounted on the mounting plate 7, the two sensors 8 are both mounted on the mounting plate 7, the two sensors 8 are respectively arranged below the two fixtures 9, each fixture 9 is matched with a sub-body part 5 and a contact sleeve block 3 at the same time, the sub-body part 5 and the contact sleeve block 3 are operably placed on the fixture 9, and the connection sleeve 2 is controlled to be connected with the upper end of the sub-body part 5 under the operation of the robot; in a further embodiment of the present invention, a notch 91 is formed on the fixture 9, and the side of the fixture 9 facing away from the mounting plate 7 is open, a support edge 92 is formed on the inner side of the notch 91, an annular insertion groove 59 is formed between the flange 54 and the nozzle body 56, the annular insertion groove 59 matches the support edge 92, and the flange 54 matches the notch 91. Furthermore, the vertical stability of the entire sub-body member 5 is improved when the insertion groove and the supporting edge 92 are matched and installed.

[0057] In a further embodiment of the present invention, the sensor 8 is used to detect whether the corresponding fixture 9 has the corresponding sub-body 5 .

[0058] In a further embodiment of the present invention, a sensor 8 is also provided above each fixture 9. In this embodiment, the lower sensor 8 is used to detect the storage status of the sub-body 5 (whether it is on the fixture 9), and the upper sensor is used to detect the position status of the contact sleeve block 3, so as to comprehensively judge the connection process between the connecting sleeve 2 and the sub-body 5.

[0059] In a further embodiment of the present invention, the slot 52 is opened on the flange 54 , and the length direction of the slot 52 is arranged along the radial direction of the flange 54 .

[0060] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A small quick-change structure, characterized in that, Comprising: Connection block; Connection sleeve, the connection sleeve is arranged at the lower end of the connection block, several guide grooves are arranged along the circumferential direction on the upper part of the connection sleeve, and several through openings are arranged along the circumferential direction on the lower part of the connection sleeve; Contact sleeve block, a channel penetrating along the vertical direction is formed inside the contact sleeve block, an inclined annular surface is formed at the lower part of the channel, and the inner contour of the inclined annular surface gradually increases from top to bottom; Several guide pins, several of the guide pins are evenly arranged along the circumferential direction of the upper part of the channel, and one end of each guide pin is slidably arranged in one of the guide grooves; Several limit beads, each limit bead is movably arranged in the through opening under the extrusion of the inclined annular surface; Sub-body part, the upper part of the sub-body part extends into the connection sleeve from bottom to top, an annular groove is formed by inward depression along the circumferential direction on the upper part of the sub-body part, and each limit bead is movably abutted in the annular groove; Elastic component, the elastic component is arranged between the connection block and the contact sleeve block and can elastically expand and contract along the vertical direction; Wherein, the connection sleeve can be operatively in a locked state or an unlocked state with the sub-body part; the guide groove is arranged in a rounded rectangle, the length direction of the guide groove is arranged along the circumferential direction of the connection sleeve, and the guide groove includes a first guide space and a second guide space that are horizontally interconnected, the lower edge of the first guide space is inclined, the lower edge of the second guide space is horizontal, and the height of the end of the lower edge of the first guide space far from the second guide space is inclined downward; Wherein, when in the locked state, one end of the guide pin is abutted against the lower edge of the first guide space, and the limit bead is abutted against the inner wall of the channel; When in the unlocked state, one end of the guide pin is abutted against the lower edge of the second guide space, and the limit bead is abutted against the inclined annular surface.

2. The small quick-change structure according to claim 1, wherein The lower edge of the first guide space is inclined at an angle of 20° with respect to the horizontal direction.

3. The small quick-change structure according to claim 1, wherein The horizontal outer contour of the connection sleeve is smaller than the horizontal outer contour of the connection block, several installation grooves are arranged at the outer edge of the upper surface of the contact sleeve block, each installation groove is arranged with an opening facing upward, a spring is installed in each installation groove, a tension column is installed at the upper part of each spring, the upper end of each tension column abuts against the outer edge of the lower surface of the connection block, and several tension columns and several springs together form the elastic component.

4. The small quick-change structure according to claim 1, characterized in that The generatrix of the inclined annular surface is inclined at an angle of 30° with respect to the vertical direction.

5. The small quick-change structure according to claim 1, characterized in that, A first annular surface and a second annular surface are formed inside the annular groove, the first annular surface and the second annular surface are connected up and down, the lower part of the first annular surface is inclined inward relative to the upper part, and the upper part of the second annular surface is inclined inward relative to the lower part.

6. The small quick-change structure according to claim 5, characterized in that, The generatrix of the first annular surface is inclined at an angle of 30° with respect to the horizontal direction.

7. The small quick-change structure according to claim 1, characterized in that, A concave slot is formed at the upper part of the sub-body part, an insertion block extends downward from the lower end of one side of the connection sleeve, and the insertion block is matched with the slot.

8. A high-pressure glue spraying nozzle switching system, comprising the small quick-change structure described in any one of claims 1 to 7 above, characterized in that, Also comprising: A robot and a glue injection pipeline, wherein the robot is connected to one end of the connection block away from the connection sleeve, one end of the glue injection pipeline is connected to the robot, and the other end of the glue injection pipeline passes through the connection block and is connected to the upper end of the sub-body; The sub-body part is a nozzle structure, and the sub-body part includes a connector, a flange, a neck and a nozzle body connected in sequence from top to bottom. The annular groove is arranged on the circumferential outer wall of the connector. A plurality of glue coating channels are formed in the sub-body part. One end of the glue coating channel passes through the connector and forms a glue outlet hole, and the other end of the glue coating channel passes through the connector and is connected to the other end of the glue injection pipeline.

9. The high-pressure glue spraying nozzle switching system according to claim 8, wherein, The robot comprises at least two of the sub-body parts, and further comprises: a replacement frame, a mounting plate, at least two sensors and at least two fixtures, wherein the mounting plate is fixedly mounted on the replacement frame, the two fixtures are both mounted on the mounting plate, the two sensors are both mounted on the mounting plate, the two sensors are respectively arranged above or below the two fixtures, each of the fixtures is matched with a sub-body part, the sub-body part is operably placed on the fixture, and the connecting sleeve is controlled to be sleeved with the upper end of the sub-body part under the operation of the robot; A notch is formed on the fixture, and the side of the fixture facing away from the mounting plate is open, a supporting edge is formed on the inner side of the notch, an annular insertion groove is formed between the flange and the nozzle body, the annular insertion groove matches the supporting edge, and the flange matches the notch.

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