Anti-falling expansion sleeve tool

Abstract

The invention relates to the technical field of workpiece carrying, in particular to an anti-disengaging expansion sleeve tool which comprises a positioning frame. The square pipe is movably mounted on one side of the positioning frame; the sleeve is fixedly mounted on one side of the square tube; the positioning cylinder is fixedly mounted at the bottom of the sleeve; the notches are formed in the outer side of the positioning cylinder in an annular array manner; the clamping jaw is movably arranged in the notch; the positioning assembly is arranged in the positioning cylinder and used for driving the clamping jaw to move to abut against the inner wall of the workpiece; the push rod is movably mounted in the sleeve; the positioning rack is fixedly mounted at the tail end of the push rod, is in transmission connection with the positioning assembly and controls the moving distance of the clamping jaw; the switching assembly is arranged in the sleeve, and the moving distance of the clamping jaw is adjusted by controlling the moving distance of the push rod. According to the anti-disengaging expansion sleeve tool, the descending distance of the push rod is controlled through cooperation of a plurality of components such as the fixed frame, the movable rod, the positioning ring and the fixed ring, then the moving distance of the clamping jaw can be controlled, and the anti-disengaging expansion sleeve tool can adapt to coil stocks with different inner diameters.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece handling, and particularly to an anti - detachment expansion sleeve tooling. Background Art

[0002] In a factory workshop, the handling of coil materials is a key link, and it is necessary to select appropriate handling equipment and methods according to the type, size, weight of the coil materials, as well as the workshop layout and production process. Common handling methods include using forklifts for handling, using overhead cranes for handling, etc. During the handling process, some directly clamp the outer side of the coil material for handling, and some extend the handling equipment into the inner diameter of the coil material, and the clamping jaws extended by the equipment are abutted and fixed against the inner wall of the coil material, and the coil material is moved through the positioning between the clamping jaws and the inner wall of the coil material.

[0003] However, there are differences in the sizes of the inner diameters of coil materials. When fixing coil materials with different inner diameters, it is necessary to correspondingly replace the handling instruments. If there are multiple types of coil materials to be handled, then the handling instruments need to be continuously replaced during the handling process, which will affect the handling efficiency. Secondly, configuring a variety of different handling instruments is also a significant expense, which will increase the input cost of the enterprise. Summary of the Invention

[0004] Based on this, in view of the above - mentioned technical problems, it is necessary to provide an anti - detachment expansion sleeve tooling that can handle coil materials with different inner diameters.

[0005] An anti - detachment expansion sleeve tooling provided by the present invention includes: A positioning frame, connected to a conveying device, for driving the tooling to lift and adjust the position; A square tube, movably installed on one side of the positioning frame and rotatable relative to the positioning frame; A sleeve, fixedly installed on one side of the square tube; A positioning cylinder, fixedly installed at the bottom of the sleeve; An activity groove, annularly and arrayedly opened on the outer side of the positioning cylinder; Clamping jaws, movably arranged in the activity groove; A positioning component, arranged in the positioning cylinder, for driving the clamping jaws to move and abut against the inner wall of the workpiece; A push rod, movably installed in the sleeve; A positioning rack, fixedly installed at the end of the push rod and in transmission connection with the positioning component to control the moving distance of the clamping jaws; A switching component, arranged in the sleeve, for adjusting the moving distance of the clamping jaws by controlling the moving distance of the push rod.

[0006] In one embodiment, the positioning component includes a cross, which is fixedly arranged in the positioning cylinder. A plurality of moving grooves are formed in the cross. The moving grooves are flush and interconnected with the movable grooves and have the same number. The clamping jaws are slidably connected to the moving grooves. A disc is rotatably arranged at the top of the cross. A plurality of arc grooves are formed in the disc. A positioning rod is movably arranged in the arc groove. The bottom of the positioning rod is fixedly connected to the top of the clamping jaw.

[0007] In one embodiment, a first bevel gear is fixedly arranged at the top of the disc. A fixed frame is fixedly arranged on one side of the cross. A rotating rod is movably arranged through the fixed frame. A second bevel gear is fixedly arranged at the end of the rotating rod. The second bevel gear is meshed with and drives the first bevel gear.

[0008] In one embodiment, a positioning gear is fixedly arranged at one end of the rotating rod away from the second bevel gear. The positioning rack is meshed with and drives the positioning gear.

[0009] In one embodiment, the switching component includes a fixed frame, which is fixedly connected to the sleeve. A plurality of movable rods are horizontally movably arranged through the fixed frame. The heights of the plurality of movable rods are different. A reset rod is movably arranged above the movable rod at the highest position in the fixed frame. A positioning ring is fixedly arranged at one end of the movable rod close to the push rod. The positioning ring is movably abutted against the outer side of the push rod. A fixed ring is fixedly sleeved on the outer side of the push rod. The fixed ring is movably abutted against the positioning ring. The movable rods and the reset rod are both connected to the inner wall of the fixed frame through positioning springs.

[0010] In one embodiment, a movable plate is movably arranged in the fixed frame. A positioning groove and a reset groove are respectively formed in the movable plate below the movable rod and below the reset rod. The positioning groove is composed of an inclined groove and a clamping groove and the two are interconnected. Vertical rods and sliding rods are respectively fixedly arranged at the bottoms of the movable rod and the reset rod. The vertical rod is slidably connected to the inclined groove and is movably clamped with the clamping groove. The sliding rod is slidably connected to the reset groove.

[0011] In one embodiment, a notch is formed in the movable plate. A fixed rod is fixedly arranged on the fixed frame. The fixed rod is slidably connected to the notch. A vertical rod is fixedly arranged on the movable plate. A connecting spring is connected between the vertical rod and the fixed rod.

[0012] In one embodiment, a positioning frame is fixedly arranged inside the sleeve, a sliding block is slidably arranged inside the positioning frame, one end of the sliding block is fixedly connected to the push rod, a plurality of limiting holes are formed in the positioning frame, the number of the limiting holes is the same as that of the positioning rings, a limiting ball is arranged at one end of the sliding block close to the limiting hole, and the limiting ball is movably clamped with the limiting hole.

[0013] In one embodiment, a moving rod is movably arranged through one side of the sleeve where the push rod is located, a positioning plate is fixedly arranged on the outer side of the moving rod, notches are axially symmetrically formed on one side of the positioning plate close to the fixed frame, and the notches are movably abutted against the reset rod and the movable rod.

[0014] In one embodiment, a top rod is movably arranged through the limiting hole, one end of the top rod is movably abutted against the limiting ball, the other end of the top rod movably penetrates through the sleeve, the top rod is connected to the positioning frame through a reset spring, a stop rod is fixedly arranged on the top rod at the upper part, a lead screw is rotatably arranged on one side of the positioning frame, a moving block is movably sleeved on the outer side of the lead screw, one end of the moving block is slidably connected to the positioning frame, a top groove is formed at the other end, the top groove is movably abutted against the stop rod, a rotating shaft is rotatably arranged below the lead screw in the positioning frame, the rotating shaft is connected to the lead screw through a belt drive, a driving gear is fixedly arranged at the end of the rotating shaft, a driving rack is fixedly arranged on one side of the positioning plate, and the driving gear is meshed with the driving rack for transmission.

[0015] The above anti - detachment expansion sleeve tooling realizes the abutment of the clamping jaws against the inner wall of the coil material through the cooperation of multiple components such as the disc, the arc groove, and the positioning rod, and can position the coil material, facilitating its handling; through the cooperation of multiple components such as the fixed frame, the movable rod, the positioning ring, and the fixed ring, the control of the descending distance of the push rod is realized, and further the moving distance of the clamping jaws can be controlled, and it can adapt to coil materials with different inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the positioning cylinder in the present invention; Figure 3 is Figure 2Schematic enlarged view of part A; Figure 4 Schematic external structure view of the sleeve in the present invention; Figure 5 Schematic internal structure view of the sleeve in the present invention; Figure 6 Schematic structure view of the positioning frame in the present invention; Figure 7 Schematic structure view of the fixing frame in the present invention; Figure 8 Schematic view of the positional relationship between the moving plate and the vertical rod in the present invention; Figure 9 Schematic structure view of the driving rack in the present invention; Figure 10 Schematic structure view of the top groove in the present invention; Figure 11 Schematic structure view of the limiting ball in the present invention.

[0018] Reference numerals: 1, positioning frame; 2, square tube; 3, sleeve; 4, clamping jaw; 5, positioning cylinder; 51, movable groove; 6, positioning assembly; 61, cross; 62, moving groove; 63, disc; 64, arc groove; 65, positioning rod; 7, push rod; 8, positioning rack; 9, switching assembly; 91, fixing frame; 92, movable rod; 93, reset rod; 94, positioning ring; 95, positioning spring; 10, first bevel gear; 11, fixing frame; 12, rotating rod; 13, second bevel gear; 14, positioning gear; 15, fixing ring; 16, moving plate; 161, positioning groove; 162, reset groove; 163, notch; 17, inclined groove; 18, clamping groove; 19, vertical rod; 20, sliding rod; 21, fixing rod; 22, vertical rod; 23, connecting spring; 24, positioning frame; 241, limiting hole; 25, sliding block; 26, limiting ball; 27, moving rod; 28, positioning plate; 281, notch; 29, ejector rod; 30, reset spring; 31, blocking rod; 32, lead screw; 33, moving block; 331, top groove; 34, rotating shaft; 35, belt; 36, driving gear; 37, driving rack. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present invention are only for illustrative purposes and do not represent the only implementation.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0022] In the present invention, unless otherwise clearly defined and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0023] Unless otherwise defined, all technical and scientific terms used in the description of the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the description of the present invention includes any and all combinations of one or more of the related listed items.

[0024] The following combines Figures 1-11 to describe a type of anti - detachment expansion sleeve tooling of the present invention.

[0025] As Figures 1-5 shown, in one embodiment, the anti - detachment expansion sleeve tooling includes a positioning frame 1, a square tube 2, a sleeve 3, a positioning cylinder 5, a clamping jaw 4, a positioning component 6, a push rod 7, a positioning rack 8 and a switching component 9.

[0026] Among them, one end of the positioning frame 1 is connected to the conveying device. The square tube 2 is movably connected to the positioning frame 1 and can rotate relative to the positioning frame 1. The sleeve 3 is fixedly installed on one side of the square tube 2. The positioning cylinder 5 is installed at the bottom of the sleeve 3. A plurality of moving grooves 51 are formed on the outer side of the positioning cylinder 5. The clamping jaws 4 are movably arranged in the moving grooves 51 and can slide relative to the moving grooves 51. The positioning assembly 6 can drive the clamping jaws 4 to move horizontally. The push rod 7 can move vertically relative to the sleeve 3, thereby driving the positioning rack 8 to move up and down. The length of the downward movement distance of the positioning gear 14 corresponds to the horizontal movement distance of the clamping jaws 4. The switching assembly 9 can control the downward movement distance of the push rod 7.

[0027] Specifically, connect one end of the positioning frame 1 to the conveying device. The conveying device can be a forklift, and the forklift is equipped with a lifting device that can drive the positioning frame 1 to move up and down. When handling the coiled material, first move the forklift and the positioning frame 1 to one side of the coiled material, and rotate the square tube 2 to make it perpendicular to the ground. Before handling the coiled material, first adjust the moving distance required for the clamping jaws 4 according to the inner diameter of the coiled material, that is, control the downward movement distance of the push rod 7 and the positioning rack 8 in the sleeve 3 through the switching assembly 9. After setting, drive the positioning frame 1, the square tube 2, the sleeve 3, and the positioning cylinder 5 to move downward through the lifting device on the forklift. The sleeve 3 and the positioning cylinder 5 extend into the inner diameter of the coiled material. Move the push rod 7 downward by a preset distance. The downward movement of the positioning rack 8 will drive the positioning assembly 6 to work, thereby driving the clamping jaws 4 to move out of the moving grooves 51. After the clamping jaws 4 move to the preset distance, they abut against the inner wall of the coiled material. Subsequently, moving the positioning frame 1 upward will cause the sleeve 3, the positioning cylinder 5, the clamping jaws 4, and the coiled material to move upward together, realizing the handling of the coiled material. After using the forklift to transport the coiled material to the designated position, place the coiled material on the ground. Moving the push rod 7 upward will drive the positioning rack 8 to move, thereby causing the clamping jaws 4 to return to the moving grooves 51. Subsequently, the sleeve 3 and the positioning cylinder 5 can be removed from the inner diameter of the coiled material to complete the handling work of the coiled material.

[0028] Refer to Figure 2 and Figure 3 As shown in the figure, in this embodiment, the positioning assembly 6 includes a cross 61. The cross 61 is fixedly arranged in the positioning cylinder 5. A plurality of moving grooves 62 are formed on the cross 61. The moving grooves 62 are flush and interconnected with the moving grooves 51 and have the same number. The clamping jaws 4 are slidably connected to the moving grooves 62. A disc 63 is rotatably arranged at the top of the cross 61. A plurality of arc grooves 64 are formed on the disc 63. A positioning rod 65 is movably arranged in the arc grooves 64. The bottom of the positioning rod 65 is fixedly connected to the top of the clamping jaws 4.

[0029] Specifically, when the positioning cylinder 5 is located inside the coil, the disc 63 is rotated counterclockwise. The rotation of the disc 63 will drive the arc groove 64 to rotate, thereby driving the positioning rod 65 to move toward the outside of the positioning cylinder 5. The clamping jaw 4 will move along the positioning rod 65. The clamping jaw 4 moves along the moving groove 62 opened by the cross 61 toward the outside of the positioning cylinder 5 and abuts against the inner wall of the coil. In this way, the coil is positioned to facilitate subsequent transportation.

[0030] See also Figure 3 As shown, in this embodiment, a first bevel gear 10 is fixedly provided on the top of the disc 63, a fixing frame 11 is fixedly provided on one side of the cross 61, a rotating rod 12 is movably provided on the fixing frame 11, a second bevel gear 13 is fixedly provided on the end of the rotating rod 12, and the second bevel gear 13 is meshed with the first bevel gear 10 for transmission.

[0031] Specifically, when the positioning cylinder 5 is located inside the coil, the rotating rod 12 is rotated. The rotation of the rotating rod 12 in the fixed frame 11 will drive the second bevel gear 13 to rotate, thereby causing the first bevel gear 10 to rotate. The disk 63 rotates accordingly to enable the clamping jaw 4 to move toward the outside of the positioning cylinder 5. The rotation amplitude of the disk 63 is proportional to the moving distance of the clamping jaw 4. The moving distance of the clamping jaw 4 can be adjusted by controlling the rotation amplitude of the disk 63, so that coils with different inner diameters can be adapted.

[0032] See also Figure 2 and Figure 3 As shown, in this embodiment, a positioning gear 14 is fixedly provided at one end of the rotating rod 12 away from the second bevel gear 13 , and the positioning rack 8 is meshed with the positioning gear 14 for transmission.

[0033] Specifically, when the positioning cylinder 5 is located inside the coil, the downward movement of the push rod 7 will drive the positioning rack 8 to move downward, thereby rotating the positioning gear 14. The rotation of the positioning gear 14 will drive the rotating rod 12 to rotate, and finally realize the rotation of the disc 63 and the outward movement of the clamping claw 4 to abut against the inner wall of the coil.

[0034] See also Figures 4-8 As shown, in the present embodiment, the switching assembly 9 comprises a fixed frame 91, which is fixedly connected to the sleeve 3, and a plurality of movable rods 92 are arranged in the fixed frame 91 so as to be movably penetrated laterally. The plurality of movable rods 92 have different heights, and a reset rod 93 is movably arranged above the movable rod 92 located at the highest point of the fixed frame 91. A positioning ring 94 is fixedly arranged at one end of the movable rod 92 near the push rod 7, and the positioning ring 94 is movably abutted against the outer side of the push rod 7. A fixing ring 15 is fixedly sleeved on the outer side of the push rod 7, and the fixing ring 15 is movably abutted against the positioning ring 94. The movable rod 92 and the reset rod 93 are connected to the inner wall of the fixed frame 91 via a positioning spring 95.

[0035] Specifically, when the push rod 7 moves downward, in addition to driving the positioning rack 8 to move downward to achieve the movement of the clamping jaw 4, it also drives the fixed ring 15 to move downward. If there is a positioning ring 94 outside the push rod 7, during the downward movement of the fixed ring 15, it will abut against the positioning ring 94, and the fixed ring 15 and the push rod 7 cannot continue to move downward. In this way, the descending distance of the push rod 7 and the positioning rack 8 can be controlled, the rotation amplitude of the disc 63 can also be controlled, and the movement distance of the clamping jaw 4 can also be controlled. In this way, coils with different inner diameters can be transported. Before the clamping jaw 4 abuts against the coil, the switching component 9 can be adjusted according to the size of the inner diameter of the coil. When the inner diameter of the coil is small, move the upper movable rod 92. The movement of the movable rod 92 towards the push rod 7 will drive the corresponding positioning ring 94 to be sleeved outside the push rod 7. At this time, the downward movement distance of the push rod 7 is the shortest. Similarly, when the inner diameter of the coil is large, the lower movable rod 92 can be moved to drive the corresponding positioning ring 94 to be sleeved outside the push rod 7. At this time, the downward movement distance of the push rod 7 is the longest, and the movement distance of the clamping jaw 4 is the longest. The positioning spring 95 is gradually compressed during the movement of the movable rod 92 towards the push rod 7, and then can push the movable rod 92 back to the initial position during the recovery process, and the fixed frame 91 provides a supporting function.

[0036] Refer to Figures 6-8 As shown, in this embodiment, a moving plate 16 is movably arranged in the fixed frame 91. Positioning grooves 161 and reset grooves 162 are respectively formed below the movable rod 92 and the reset rod 93 on the moving plate 16. The positioning groove 161 is composed of an inclined groove 17 and a clamping groove 18 and the two are in communication with each other. Vertical rods 19 and sliding rods 20 are respectively fixedly arranged at the bottoms of the movable rod 92 and the reset rod 93. The vertical rod 19 is slidably connected with the inclined groove 17 and is movably clamped with the clamping groove 18, and the sliding rod 20 is slidably connected with the reset groove 162.

[0037] Specifically, when it is necessary to transport a coil with a small inner diameter, move the upper movable rod 92 horizontally along the fixed frame 91. The upper movable rod 92 will drive the vertical rod 19 to first move downward along the inclined groove 17 of the positioning groove 161, which will drive the moving plate 16 to move horizontally. Subsequently, the movable rod 92 will move horizontally along the positioning groove 161 and enter the clamping groove 18, so that the movable rod 92 will remain fixed. The positioning ring 94 is sleeved outside the push rod 7. When the push rod 7 moves downward, the descending distance of the push rod 7 is controlled by the abutment of the fixed ring 15 and the positioning ring 94. Similarly, when it is necessary to transport a coil with a large inner diameter, move the lower movable rod 92.

[0038] Refer to Figure 7 As shown, in this embodiment, a notch 163 is formed on the moving plate 16, a fixed rod 21 is fixedly arranged on the fixed frame 91, the fixed rod 21 is slidably connected with the notch 163, a vertical rod 22 is fixedly arranged on the moving plate 16, and a connecting spring 23 is connected between the vertical rod 22 and the fixed rod 21.

[0039] Specifically, when handling a coiled material with a smaller inner diameter, the upper movable rod 92 is moved. The movable rod 92 drives the vertical rod 19 to move along the inclined groove 17, which drives the movable plate 16 to move. The movement of the movable plate 16 drives the vertical rod 22 to move, thereby stretching the connecting spring 23. The notch 163 provides space for the fixed rod 21. The movable plate 16 moves relative to the fixed rod 21 through the notch 163. The vertical rod 19 first moves horizontally along the positioning groove 161 until it reaches the position of the clamping groove 18. Due to the loss of the abutment of the vertical rod 19, the movable plate 16 will move back to its initial position under the action of the connecting spring 23, causing the vertical rod 19 to be clamped with the clamping groove 18. This can ensure that the movable rod 92 does not move in the horizontal direction. The corresponding positioning ring 94 is sleeved outside the push rod 7, and the positioning spring 95 will be compressed during this process.

[0040] Refer to Figure 6 and Figure 11 As shown, in this embodiment, a positioning frame 24 is fixedly arranged inside the sleeve 3. A sliding block 25 is slidably arranged inside the positioning frame 24. One end of the sliding block 25 is fixedly connected to the push rod 7. A plurality of limiting holes 241 are formed on the positioning frame 24. The number of the limiting holes 241 is the same as the number of the positioning rings 94. A limiting ball 26 is arranged at one end of the sliding block 25 close to the limiting holes 241. The limiting ball 26 is movably clamped with the limiting holes 241.

[0041] Specifically, after the position of the positioning ring 94 is adjusted, the push rod 7 is moved downward. The downward movement of the push rod 7 drives the fixed ring 15 to abut against the positioning ring 94. The downward movement of the push rod 7 also drives the sliding block 25 to move downward along the positioning frame 24. The sliding block 25 is provided with a limiting ball 26, which is made of an elastic material. When the upper positioning ring 94 is sleeved outside the push rod 7, after the fixed ring 15 abuts against the positioning ring 94, the limiting ball 26 will be clamped with the upper limiting hole 241, so that the push rod 7 will remain fixed, which can improve the stability when the coiled material is lifted.

[0042] Refer to the figure and Figure 6 As shown, in this embodiment, a movable rod 27 is movably penetrated through one side of the sleeve 3 where the push rod 7 is located. A positioning plate 28 is fixedly arranged on the outer side of the movable rod 27. Notches 281 are axially symmetrically formed on one side of the positioning plate 28 close to the fixed frame 91. The notches 281 are movably abutted against the reset rod 93 and the movable rod 92.

[0043] Specifically, before transporting the coil, if the inner diameter of the coil is small, the moving rod 27 is moved downward, and the moving rod 27 drives the positioning plate 28 to move downward so that the notch 281 first contacts the reset rod 93, driving the reset rod 93 to move horizontally along the fixed frame 91. The movement of the reset rod 93 will drive the slide bar 20 to slide along the reset groove 162, driving the movable plate 16 to move horizontally. During this process, the positioning spring 95 will be compressed, and then the positioning plate 28 will continue to descend and no longer abut against the reset rod 93. Under the action of the positioning spring 95, the reset rod 93 will be driven to return to the initial position. The positioning plate 28 continues to descend and will abut against the upper movable rod 92, driving the movable rod 92 to move horizontally so that the corresponding vertical rod 19 is engaged with the slot 18. The positioning ring 94 is sleeved on the outside of the push rod 7 to control the distance the push rod 7 descends. If the inner diameter of the coil is larger, it will continue to move downward, and the notch 281 of the positioning plate 28 will abut against the lower movable rod 92 to drive the movable rod 92 to move horizontally. The movable rod 92 drives the vertical rod 19 along the positioning groove 161 to drive the movable plate 16 to move so that the upper vertical rod 19 is separated from the corresponding slot 18. Under the action of the positioning spring 95, the movable rod 92 is driven back to the initial position, and the lower vertical rod 19 is engaged with the corresponding slot 18. In this way, the lower positioning ring 94 is sleeved on the outer side of the push rod 7, so that the push rod As the descending distance increases, the moving distance of the clamping jaw 4 also increases, so that the coil with a larger inner diameter can be positioned and transported. After the coil is transported, no matter whether the positioning plate 28 is in contact with the upper movable rod 92 or the lower movable rod 92, the movable rod 27 is moved upward, and the positioning plate 28 will eventually contact the reset rod 93, driving the reset rod 93 to move horizontally so that the movable plate 16 moves, releasing the clamping connection between the slot 18 and the vertical rod 19, so that the movable rod 92 returns to the initial position, which is convenient for the next adjustment.

[0044] See also Figure 9 and Figure 10 As shown, in the present embodiment, a push rod 29 is movably provided in the limiting hole 241, one end of the push rod 29 is movably abutted against the limiting ball 26, and the other end of the push rod 29 is movably provided through the sleeve 3, and the push rod 29 is connected to the positioning frame 24 by a reset spring 30, wherein the upper push rod 29 is fixedly provided with a blocking rod 31, and a screw rod 32 is rotatably provided on one side of the positioning frame 24, and a moving block 33 is movably sleeved on the outer side of the screw rod 32, one end of the moving block 33 is slidably connected with the positioning frame 24, and the other end is provided with a top groove 331, and the top groove 331 is movably abutted against the blocking rod 31, and the positioning frame 24 is rotatably provided with a rotating shaft 34 below the screw rod 32, and the rotating shaft 34 and the screw rod 32 are connected by a belt 35 for transmission, and a driving gear 36 is fixedly provided at the end of the rotating shaft 34, and a driving rack 37 is fixedly provided on one side of the positioning plate 28, and the driving gear 36 is meshed with the driving rack 37 for transmission.

[0045] Specifically, when the limiting ball 26 is clamped with the limiting hole 241, the sliding block 25 cannot move further at this time, the push rod 7 remains stationary, the clamping jaw 4 abuts against the inner diameter of the coil stock, and the coil stock can be transported. After the transportation of the coil stock is completed, it is necessary to release the positioning of the coil stock by the clamping jaw 4. To move the push rod 7 upward, it is necessary to first release the clamping between the limiting hole 241 and the limiting ball 26. The ejector rod 29 can be pushed inward. The inward movement of the ejector rod 29 drives the limiting ball 26 to release the clamping with the limiting hole 241. The sleeve 3 does not entirely extend into the interior of the coil stock, and a part of the top is not located within the inner diameter of the coil stock. The ejector rod 29 can be pushed. At this time, the push rod 7 can be moved. The upward movement of the push rod 7 can drive the clamping jaw 4 to move inward and not abut against the inner wall of the coil stock. At this time, the sleeve 3 and the positioning cylinder 5 are withdrawn from the coil stock. When the inner diameter of the coil stock is small, the movement of the moving rod 27 and the positioning plate 28 will cause the upper movable rod 92 to move horizontally, driving the upper positioning ring 94 to be sleeved outside the push rod 7. The downward movement of the push rod 7 drives the fixed ring 15 to abut against the upper positioning ring 94, and the limiting ball 26 is clamped with the upper limiting hole 241. If the inner diameter of the coil stock is large, the positioning plate 28 will continue to move downward to drive the lower positioning ring 94 to be sleeved outside the push rod 7. In this way, the downward movement distance of the push rod 7 increases. The downward movement of the push rod 7 drives the sliding block 25 to move downward along the moving frame, and the limiting ball 26 will first be clamped with the upper limiting hole 241. If the push rod 7 is to be moved downward continuously, it is necessary to first release the clamping between the limiting ball 26 and the upper limiting hole 241 before the push rod 7 can be pushed downward continuously to drive the limiting ball 26 to be clamped with the lower limiting hole 241. This adds an extra step and brings inconvenience to the operation. If the operator does not have rich operation experience, when the limiting ball 26 is clamped with the upper limiting hole 241 and the push rod 7 cannot be pushed downward, it will be considered that the push rod 7 has moved to the preset position and the clamping jaw 4 has abutted against the inner wall of the coil stock. However, in fact, at this time, the clamping jaw 4 has not yet abutted against the inner wall of the coil stock and cannot position the coil stock. Therefore, during the movement of the positioning plate 28 from the position of the upper movable rod 92 to the lower movable rod 92, it will drive the driving rack 37 to move downward, thereby driving the driving gear 36 to rotate. The rotation of the driving gear 36 drives the rotating shaft 34 to rotate. The rotation of the rotating shaft 34 drives the lead screw 32 to rotate through the belt 35. The rotation of the lead screw 32 drives the moving block 33 to move horizontally. The movement of the moving block 33 drives the top groove 331 to move. During the movement, it abuts against the stop rod 31 provided on one side of the ejector rod 29 corresponding to the upper limiting hole 241. The stop rod 31 drives the ejector rod 29 to move into the upper limiting hole 241 to block the limiting hole 241. During this process, the return spring 30 is compressed. In this way, when the push rod 7 moves downward, the limiting ball 26 on the sliding block 25 will not be clamped with the upper limiting hole 241 and will directly be clamped with the lower limiting hole 241, making the operation more convenient and fast.

[0046] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0047] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. An anti-slip expansion sleeve tooling, characterized in that: include: The positioning frame is connected to the conveying device and is used to drive the tooling to rise and fall and adjust its position; A square tube, movably mounted on one side of the positioning frame, and rotatable relative to the positioning frame; A sleeve, fixedly mounted on one side of the square tube; A positioning cylinder, fixedly mounted on the bottom of the sleeve; Movable grooves, in an annular array, are arranged outside the positioning cylinder; A clamping jaw, movably disposed in the movable groove; A positioning assembly, disposed in the positioning cylinder, for driving the clamping jaws to move and abut against the inner wall of the workpiece; A push rod, movably mounted in the sleeve; A positioning rack, fixedly mounted at the end of the push rod, is transmission-connected to the positioning assembly to control the moving distance of the clamping jaw; The switching assembly is arranged in the sleeve and adjusts the moving distance of the clamping jaw by controlling the moving distance of the push rod.

2. The anti-slip expansion sleeve tooling according to claim 1 is characterized in that: The positioning assembly includes a cross, which is fixed in the positioning cylinder. A plurality of movable grooves are provided on the cross. The movable grooves are flush with and interconnected with the movable grooves and the number of the two is the same. The clamp is slidably connected to the movable grooves. A disc is rotatably provided on the top of the cross. A plurality of arc grooves are provided on the disc. A positioning rod is movably provided in the arc groove. The bottom of the positioning rod is fixedly connected to the top of the clamp.

3. The anti-slip expansion sleeve tooling according to claim 2 is characterized in that: A first bevel gear is fixedly arranged on the top of the disc, a fixing frame is fixedly arranged on one side of the cross, a rotating rod is movably arranged on the fixing frame, a second bevel gear is fixedly arranged on the end of the rotating rod, and the second bevel gear is meshed with the first bevel gear for transmission.

4. The anti-slip expansion sleeve tooling according to claim 3 is characterized in that: A positioning gear is fixedly arranged at one end of the rotating rod away from the second bevel gear, and the positioning rack is meshed with the positioning gear for transmission.

5. The anti-slip expansion sleeve tooling according to claim 1 is characterized in that: The switching assembly includes a fixed frame, which is fixedly connected to the sleeve, and a plurality of movable rods are arranged in the fixed frame for horizontal movement and penetration, and the plurality of movable rods have different heights, and a reset rod is movably arranged above the movable rod located at the highest point of the fixed frame, and a positioning ring is fixedly arranged at one end of the movable rod close to the push rod, and the positioning ring is movably abutted against the outer side of the push rod, and a fixed ring is fixedly sleeved on the outer side of the push rod, and the fixing ring is movably abutted against the positioning ring, and the movable rod and the reset rod are connected to the inner wall of the fixed frame by a positioning spring.

6. The anti-slip expansion sleeve tooling according to claim 5, characterized in that: A movable plate is movably arranged in the fixed frame, and a positioning groove and a reset groove are respectively provided on the movable plate below the movable rod and below the reset rod, and the positioning groove is composed of an oblique groove and a clamping groove and the two are connected to each other, and a vertical rod and a sliding rod are fixedly arranged at the bottom of the movable rod and the reset rod, respectively, the vertical rod is slidably connected to the oblique groove and movably clamped with the clamping groove, and the sliding rod is slidably connected to the reset groove.

7. The anti-slip expansion sleeve tooling according to claim 6, characterized in that: The movable plate is provided with a slot, the fixed frame is fixedly provided with a fixing rod, the fixing rod is slidably connected with the slot, the movable plate is fixedly provided with a vertical rod, and the vertical rod is connected to the fixing rod via a connecting spring.

8. The anti-slip expansion sleeve tooling according to claim 6, characterized in that: A positioning frame is fixedly provided in the sleeve, a sliding block is slidably provided in the positioning frame, one end of the sliding block is fixedly connected to the push rod, a plurality of limiting holes are provided on the positioning frame, the number of the limiting holes is the same as the number of the positioning rings, a limiting ball is provided at one end of the sliding block close to the limiting hole, and the limiting ball is movably engaged with the limiting hole.

9. The anti-slip expansion sleeve tooling according to claim 8, characterized in that: The sleeve is located at one side of the push rod and is movably provided with a moving rod, a positioning plate is fixedly provided on the outer side of the moving rod, and the positioning plate is axially symmetrically provided with notches on one side close to the fixed frame, and the notches are movably abutted against the reset rod and the moving rod.

10. The anti-slip expansion sleeve tooling according to claim 9, characterized in that: The cam is provided with a plurality of gears, and the plurality of gears are connected to each other with a plurality of gears, and the plurality of gears are connected to each other with a plurality of gears.

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