A quick change device for a spinning frame yarn joint robot

Abstract

This utility model discloses a quick-change device for a yarn splicing robot on a spinning machine. The quick-change device includes a cylindrical first connecting block and a cylindrical second connecting block. The first and second connecting blocks are detachably locked together by a ring-shaped locking sleeve through a snap-fit ​​or threaded connection. The first connecting block has several connecting holes through which bolts pass to fix the first connecting block to the end of the robot arm. The second connecting block has several stepped holes, and connecting bolts are inserted into the bottom holes of the stepped holes, fixing the connecting bolts to the robot arm. The beneficial effect of this utility model is that by using a locking sleeve to connect the first and second connecting blocks, the robot arm and its end are quickly disassembled and assembled, improving the efficiency of yarn processing tool replacement.

Description

Technical Field

[0001] This utility model belongs to the field of yarn splice replacement technology for spinning machines, and particularly relates to a quick-change device for yarn splice replacement of spinning machines. Background Technology

[0002] This utility model is an improvement on the connection structure of the robotic arm and the yarn processing tool in the yarn splicing system and method of a ring spinning machine and the yarn processing tool, based on CN113122976A.

[0003] The existing connection mechanism uses bolts to directly fix the yarn processing tool to the end of the robotic arm. However, when the yarn processing tool needs to be maintained and serviced, it must either be removed for maintenance or the robotic arm must be stopped for maintenance. Neither method can meet the requirement of continuous yarn splicing of the robotic arm, which is detrimental to the continuous operation of yarn splicing. Summary of the Invention

[0004] The purpose of this utility model embodiment is to provide a quick-change device for a yarn splicing robot arm on a spinning machine. It aims to solve the technical problem that the existing connection mechanism uses bolts to directly fix the yarn processing tool to the end of the robot arm. However, when the yarn processing tool needs to be maintained, it must either be removed for maintenance or the robot arm must be stopped for maintenance. Neither of these methods can meet the continuous yarn splicing requirements of the robot arm, which is detrimental to the continuous operation of yarn splicing.

[0005] The present invention is implemented as follows: A quick-change device for a yarn splice robot on a spinning machine includes a cylindrical first connecting block and a cylindrical second connecting block. The first and second connecting blocks are detachably locked together by a ring-shaped locking sleeve via a snap-fit ​​or threaded connection. The first connecting block has several connecting holes through which bolts pass to fix the first connecting block to the end of the robot arm. The second connecting block has several stepped holes, and connecting bolts are inserted into the bottom holes of the stepped holes, which are then fixed to the robot arm.

[0006] Furthermore, the connecting holes are evenly distributed around the axis of the first connecting block; the stepped holes are evenly distributed around the axis of the second connecting block.

[0007] Furthermore, the top of the first connecting block is also provided with a positioning groove, which is an L-shaped notch located at the top edge or the middle of the top of the first connecting block.

[0008] Furthermore, the bottom circumference of the first connecting block is provided with a first shoulder, the outer side of the shoulder is connected to the inner side of the locking sleeve, the outer side of the first shoulder is provided with a thread, the inner side of the locking sleeve is provided with a thread, and the outer side of the first shoulder is threadedly connected to the inner side of the locking sleeve.

[0009] Furthermore, a limiting sleeve is machined into the inner side of the locking sleeve, and a plurality of conical holes are evenly distributed around the middle circumference of the limiting sleeve, with steel balls placed inside the conical holes; an annular groove is provided on the outer bottom of the limiting sleeve at the position of the conical holes, and a sliding sleeve is slidably disposed in the annular groove; a bevel is provided on the top of the sliding sleeve near the steel ball, and the bevel can cooperate with the steel ball; a limiting groove is provided at the bottom of the outer cylindrical surface of the first connecting block 1, and the limiting groove is used to cooperate with the steel ball to lock the first connecting block; a reset elastic element is connected to the bottom of the sliding sleeve; a support plate is also provided at the bottom of the locking sleeve for limiting the second connecting block and the reset elastic element.

[0010] Furthermore, the bottom of the first connecting block is provided with a circular groove, and the center of the groove is provided with at least one positioning hole; the top of the second connecting block is provided with at least one positioning pin; the number of positioning holes and positioning pins are the same, and when the outer side of the first shaft shoulder is threadedly connected and locked with the inner side of the locking sleeve, the positioning pin is inserted into the inside of the positioning hole.

[0011] Furthermore, the number of positioning holes and positioning pins is two.

[0012] The positive effects of this utility model are as follows: the structure of connecting the first connecting block and the second connecting block with a locking sleeve enables quick assembly and disassembly of the robotic arm and the end of the robotic arm, improving the efficiency of yarn processing tool replacement; the cooperation of the stepped hole and the connecting bolt ensures the stability and positioning accuracy of the robotic arm installation; the independent connecting block design allows the robotic arm to be maintained or replaced offline, avoiding long-term downtime of the robotic arm and improving the continuity of yarn splicing operations and overall production efficiency; this quick-change device has a simple and reliable structure, is easy to operate, and is suitable for high-efficiency spinning production environments where tools are frequently changed. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a quick-change device for a yarn splice robot on a spinning machine according to the present invention; Figure 2 yes Figure 1 The image shown is a front view of a quick-change device for a yarn splicing robot of a spinning machine according to this utility model. Figure 3 yes Figure 2 The figure shows a cross-sectional view along line AA of the first internal structure of a quick-change device for a yarn splicing robot of a spinning machine according to the present invention. Figure 4 yes Figure 3The diagram shows a three-dimensional structural schematic of the first connecting block in the quick-change device of the yarn splice robot of a spinning machine according to the present invention. Figure 5 yes Figure 3 The diagram shown is a three-dimensional structural schematic of the first connecting block from a second perspective in the quick-change device of the yarn splice robot of a spinning machine according to the present invention. Figure 6 yes Figure 3 The figure shown is a three-dimensional structural schematic diagram of the second connecting block in the quick-change device of the yarn splice robot of the spinning machine according to the present invention; Figure 7 yes Figure 3 The diagram shows a three-dimensional structural schematic of the second connecting block from a second perspective in the quick-change device of a yarn splicing robot for a spinning machine according to this utility model. Figure 8 yes Figure 2 The figure shows a cross-sectional view along line AA of the second internal structure of a quick-change device for a yarn splicing robot of a spinning machine according to the present invention. Legend: 1—First connecting block, 2—Connecting hole, 3—Locking sleeve, 4—Connecting bolt, 5—Positioning groove, 6—Second connecting block, 7—Step hole, 701—Step bottom hole, 8—Step bottom hole, 9—Positioning post, 10—Positioning hole, 11—Limiting clamp, 12—Limiting sleeve, 13—Conical hole, 14—Steel ball, 15—Inclined surface, 16—Sliding sleeve, 17—Annular groove, 18—Fixing bolt, 19—Reset elastic element, 20—Pad. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] like Figures 1 to 8 The diagram shows the structure of a quick-change device for a yarn splice robot arm of a spinning machine according to an embodiment of this utility model. It includes a cylindrical first connecting block 1 and a cylindrical second connecting block 6. The first connecting block 1 and the second connecting block 6 are detachably locked together by a ring-shaped locking sleeve 3 through a snap-fit ​​or threaded connection. The first connecting block 1 is provided with a plurality of connecting holes 2, and bolts pass through the connecting holes 2 to fix the first connecting block to the end of the robot arm. The second connecting block 6 is provided with a plurality of stepped holes 7, and connecting bolts 4 are inserted into the stepped bottom holes 701 of the stepped holes 7, and the connecting bolts 4 are fixed together with the robot arm.

[0017] In this embodiment of the invention, a locking sleeve is used to connect the first connecting block and the second connecting block, enabling quick assembly and disassembly of the robotic arm and its end effector, thus improving the efficiency of yarn processing tool replacement. The step hole and connecting bolts ensure the stability and positioning accuracy of the robotic arm installation. The independent connecting block design allows the robotic arm to be maintained or replaced offline, avoiding long-term downtime of the robotic arm and improving the continuity of yarn splicing operations and overall production efficiency. This quick-change device has a simple and reliable structure, is easy to operate, and is suitable for high-efficiency spinning production environments where tools are frequently changed.

[0018] Specifically, a quick-change device for a yarn splicing robot on a spinning machine includes a cylindrical first connecting block 1 and a cylindrical second connecting block 6. The first connecting block 1 and the second connecting block 6 are detachably locked together by a ring-shaped locking sleeve 3 through a snap-fit ​​or threaded connection. The first connecting block 1 is provided with a plurality of connecting holes 2, and bolts pass through the connecting holes 2 to fix the first connecting block to the end of the robot arm. The second connecting block 6 is provided with a plurality of stepped holes 7, and connecting bolts 4 are inserted into the stepped bottom holes 701 of the stepped holes 7, and the connecting bolts 4 are fixed together with the robot arm.

[0019] The connecting holes 2 are evenly distributed around the axis of the first connecting block 1; the stepped holes 7 are evenly distributed around the axis of the second connecting block 6. The top of the first connecting block 1 is also provided with a positioning groove 5, which is an L-shaped notch located at the top edge or the middle of the top of the first connecting block 1.

[0020] The bottom of the first connecting block 1 is provided with a circular groove, and the center of the groove is provided with at least one positioning hole 10; the top of the second connecting block 6 is provided with at least one positioning pin 9; the number of positioning holes 10 and positioning pins 9 are the same, and when the outer side of the first shaft shoulder is threadedly connected and locked with the inner side of the locking sleeve 3, the positioning pin 9 is inserted into the inside of the positioning hole 10.

[0021] The bottom circumference of the first connecting block 1 is provided with a first shoulder, and the outer side of the shoulder is connected to the inner side of the locking sleeve 3; specifically, the outer side of the first shoulder is provided with a thread, the inner side of the locking sleeve 3 is provided with a thread, and the outer side of the first shoulder is connected to the inner side of the locking sleeve 3 by a thread.

[0022] The top circumference of the second connecting block 6 is provided with a second shoulder; the bottom inner side of the locking sleeve 3 is provided with an annular boss, the second shoulder overlaps with the annular boss, and the second connecting block falls off from the last one of the locking sleeve 3; when the outer side of the first shoulder is threadedly connected and locked to the inner side of the locking sleeve 3, the bottom of the outer side of the first shoulder presses the second shoulder onto the top of the annular boss.

[0023] Preferably, the shoulder edge of the second connecting block is provided with a notch that matches the first shoulder.

[0024] Preferably, the outer side of the locking sleeve 3 is provided with several notches, the direction of which is along the axial direction of the locking sleeve 3, to form an anti-slip area with alternating concave and convex shapes on the outer side of the locking sleeve, so as to facilitate tightening the threaded connection between the outer side of the first shoulder and the inner side of the locking sleeve 3.

[0025] In this embodiment, the first connecting block 1 and the second connecting block 6 are detachably locked together by a snap-fit ​​or threaded connection via an annular locking sleeve 3. A second quick-connect structure is also provided, such as... Figure 8As shown, a limiting sleeve 12 is inserted into the inner side of the locking sleeve 3. The surface of the limiting sleeve 12 that contacts the locking sleeve 3 has a groove, and a limiting hoop 11 is provided in the groove. The contact surface of the locking sleeve 3 and the limiting sleeve 12 also has a corresponding groove, and the limiting hoop 11 is provided in the corresponding groove. Several conical holes 13 are evenly distributed around the middle circumference of the limiting sleeve 12. The diameter of the conical hole 13 on the side closer to the first connecting block 1 is smaller than the diameter on the other side, so as to ensure that the steel ball 14 can contact the first connecting block 1 and will not fall out into the conical hole 13. The steel ball 14 is provided in the conical hole 13. An annular groove 17 is provided on the outer side of the bottom of the limiting sleeve 12 at the position of the conical hole 13. A sliding sleeve 16 is slidably provided in the annular groove 17. An inclined surface 15 is provided on the top of the sliding sleeve 16 on the side close to the steel ball 14. The inclined surface 15 can cooperate with the steel ball. When the sliding sleeve 16 moves downward, the inclined surface 15 disengages from the steel ball 14. When the steel ball 14 is pressed by the first connecting block 1, it can move to the outside of the sliding sleeve 16. When the sliding sleeve 16 moves upward, the inclined surface 15 presses the steel ball 14, causing it to move towards the first connecting block 1. The bottom of the outer cylindrical surface of the first connecting block 1 is provided with a limiting groove, which is used to cooperate with the steel ball 14 to lock the first connecting block 1. The bottom of the sliding sleeve 16 is connected to a reset elastic element 19, which is a spring, a hollow rubber column, or a hollow polyurethane column. The bottom of the locking sleeve 3 is also provided with a support plate 20, which is used to limit the second connecting block 2 and the reset elastic element 19. Preferably, the bottom of the sliding sleeve 16 is also connected to a pull rod, one end of which is fixed to the bottom of the sliding sleeve 16, and the other end passes through the reset elastic element 19 and the support plate 20, and is exposed at the bottom of the support plate 20 to pull the sliding sleeve 16 and assist the sliding sleeve 16 to move downward.

[0026] The foregoing has broadly outlined some aspects and features of the various embodiments and should be interpreted as merely illustrative of potential applications. Other beneficial results can be obtained by applying the disclosed information in different ways or by combining aspects of the disclosed embodiments. Further aspects and a more complete understanding can be obtained based on the detailed description of exemplary embodiments with reference to the accompanying drawings, within the scope defined by the claims.

[0027] The above embodiments provide a detailed description of the present invention. Of course, the above description is not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, reductions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A quick change device for a spinning frame piecing robot, characterised in that, The quick-change device includes a cylindrical first connecting block and a cylindrical second connecting block. The first connecting block and the second connecting block are detachably locked together by a ring-shaped locking sleeve through a snap-fit ​​or threaded connection. The first connecting block has several connecting holes, and bolts pass through the connecting holes to fix the first connecting block to the end of the robotic arm. The second connecting block has several stepped holes, and connecting bolts are inserted into the bottom holes of the stepped holes, and the connecting bolts are fixed together with the robotic arm.

2. A quick change device for a yarn joint robot of a spinning frame according to claim 1, characterized in that, The connecting holes are evenly distributed around the axis of the first connecting block; the stepped holes are evenly distributed around the axis of the second connecting block.

3. A quick change device for a yarn joint robot of a spinning frame according to claim 2, characterized in that, The top of the first connecting block is also provided with a positioning groove, which is an L-shaped notch located at the top edge or the middle of the top of the first connecting block.

4. The quick-change device for a yarn splicing robot on a spinning machine according to claim 3, characterized in that, The bottom circumference of the first connecting block is provided with a first shoulder, the outer side of the shoulder is connected to the inner side of the locking sleeve, the outer side of the first shoulder is provided with a thread, the inner side of the locking sleeve is provided with a thread, and the outer side of the first shoulder is threadedly connected to the inner side of the locking sleeve.

5. The quick-change device for a yarn splicing robot on a spinning machine according to claim 3, characterized in that, A limiting sleeve is machined into the inner side of the locking sleeve. Several conical holes are evenly distributed around the middle circumference of the limiting sleeve, and a steel ball is placed inside the conical holes. An annular groove is provided on the outer bottom of the limiting sleeve at the position of the conical holes, and a sliding sleeve is slidably arranged in the annular groove. An inclined surface is provided on the top of the sliding sleeve near the steel ball, and the inclined surface can cooperate with the steel ball. A limiting groove is provided at the bottom of the outer cylindrical surface of the first connecting block, and the limiting groove is used to cooperate with the steel ball to lock the first connecting block. A reset elastic element is connected to the bottom of the sliding sleeve. A support plate is also provided at the bottom of the locking sleeve for limiting the second connecting block and the reset elastic element.

6. A quick-change device for a yarn splicing robot on a spinning machine according to any one of claims 1 to 5, characterized in that, The bottom of the first connecting block is provided with a circular groove, and the center of the groove is provided with at least one positioning hole; the top of the second connecting block is provided with at least one positioning pin; the number of positioning holes and positioning pins are the same, and when the outer side of the first shaft shoulder is threadedly connected and locked with the inner side of the locking sleeve, the positioning pin is inserted into the inside of the positioning hole.

7. The quick-change device for a yarn splicing robot on a spinning machine according to claim 6, characterized in that, The number of positioning holes and positioning pins is two each.

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