Blowing type tightening device for double-end stud

Abstract

The utility model is applicable to the technical field of stud tightening devices, and provides a blowing type tightening device for a stud, which comprises a slide rail, a slider is slidably connected to one side of the slide rail, a rotary tightening mechanism is arranged at the top end of the slider, and a tightening component is connected to the output end of the rotary tightening mechanism. A gun head assembly is arranged at the bottom end of the tightening assembly, and a feeding pipe is arranged on one side of the gun head assembly. The gun head assembly comprises a fixing block, a clamping jaw air cylinder is arranged on the side, away from the feeding pipe, of the fixing block, and the output end of the clamping jaw air cylinder is connected with a centralizing clamping jaw. The device solves the problem that the stud in a special shape inclines and cannot be subjected to subsequent procedures when being blown into an adsorption station, and achieves the effects of reducing the manual intervention frequency and improving the working efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of stud tightening devices, and more specifically, it relates to a blow-type tightening device for double-ended studs. Background Technology

[0002] A double-ended stud is a special type of stud with a splined head, a threaded head, and a ring. The diameter of the ring is larger than that of the splined head and the threaded head. Therefore, this type of stud cannot be used directly with ordinary stud tightening devices.

[0003] Currently, stud tightening devices on the market face numerous technical challenges when tightening double-ended studs, which severely impact production efficiency and product quality. The most prominent issues occur during the pneumatic conveying and adsorption processes of the double-ended studs. When the pneumatically conveyed double-ended studs into the adsorption station, the studs often tilt upon arrival due to their own center of gravity, affecting subsequent adsorption and tightening operations. When the double-ended studs arrive at the adsorption station at an angle, the adsorption end face of the tightening mechanism cannot achieve complete contact with the stud end face, resulting in failure to adsorb the double-ended studs, production interruptions, and impact on overall production efficiency.

[0004] Therefore, a blow-type tightening device for double-ended studs is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blow-type tightening device for double-ended studs that reduces the number of manual interventions and improves work efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A blow-type tightening device for double-ended studs includes a slide rail, a slider slidably connected to one side of the slide rail, a rotary tightening mechanism at the top of the slider, a tightening assembly connected to the output end of the rotary tightening mechanism, a gun head assembly at the bottom of the tightening assembly, and a feeding pipe on one side of the gun head assembly; wherein, the gun head assembly includes a fixing block, a gripper cylinder is provided on the side of the fixing block away from the feeding pipe, and a straightening gripper is connected to the output end of the gripper cylinder.

[0008] By adopting the above technical solution, the abnormal falling posture of the double-headed stud is avoided by using a gripper cylinder and a straightening gripper, reducing the number of times manual intervention is required and improving work efficiency and quality.

[0009] The present invention is further configured such that: the straightening gripper includes a single clamping piece and a double clamping piece, and the double clamping piece has a clamping groove.

[0010] By adopting the above technical solution, the clamping groove reserves space for a single clamping piece when straightening, which can more stably clamp the double-ended stud.

[0011] The present invention is further configured such that: the gun head assembly also includes a pushing cylinder, the pushing cylinder is fixedly connected to the side of the fixed block away from the gripper cylinder, the output end of the pushing cylinder is connected to a sliding push block, and the sliding push block is provided with two sets of tube-out clamps near the center of the fixed block, the two sets of tube-out clamps being symmetrically arranged along the center line of the fixed block.

[0012] The present invention is further configured such that: the inner wall of the tube outlet clamp has a plane, and the plane is arranged around the axis of the fixing block.

[0013] The present invention is further configured such that: the tightening assembly includes an adsorption valve, an adsorption tube is rotatably connected to the center of the adsorption valve, a tightening tube is fixedly connected to the bottom end of the adsorption tube, and a spline groove is formed on the inner wall of the bottom end of the tightening tube.

[0014] The present invention is further configured such that: an extension tube is fixedly connected to the outer wall of the bottom end of the tightening tube, and the inner diameter of the extension tube is larger than the inner diameter of the spline groove.

[0015] By adopting the above technical solution, the extension tube can restrict the direction of the connecting rod, so that the double-ended stud can only be inserted along the direction of the extension tube's axis, avoiding tilting. The tightening tube, extension tube, and negative pressure adsorption are used for coarse positioning, which can avoid the problem that the double-ended stud must be aligned before subsequent tightening operations can be performed, reducing alignment time and improving work efficiency.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The use of gripper cylinders and straightening grippers prevents the double-ended studs from falling abnormally, reducing the number of times manual intervention is needed and improving work efficiency and quality. When straightening, the clamping groove reserves space for a single clamping piece, which can more stably hold the double-ended studs.

[0018] 2. The extension tube can restrict the direction of the connecting rod, so that the double-ended stud can only be inserted along the axis of the extension tube, thus avoiding tilting.

[0019] 3. By using tightening tubes, extension tubes, and negative pressure adsorption for coarse positioning, the problem of double-ended studs having to be aligned before subsequent tightening operations can be avoided, reducing alignment time and improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the blow-type tightening device for double-ended studs according to this utility model.

[0021] Figure 2This is a schematic diagram of the structure of the double-headed stud in this utility model.

[0022] Figure 3 for Figure 1 A magnified view of a portion of region B in the middle.

[0023] Figure 4 for Figure 1 A magnified view of a portion of region C.

[0024] Figure 5 This is an exploded view of the feeding tube and nozzle assembly in this utility model.

[0025] Figure 6 for Figure 1 A magnified view of a portion of region D.

[0026] Figure 7 This is an exploded view of the sliding push block and the pipe clamp in this utility model.

[0027] Figure 8 This is a schematic diagram showing the state of the gripper cylinder and the straightening gripper in this utility model.

[0028] Figure 9 This is a schematic diagram showing the state of the fixed block, the pushing cylinder, the sliding push block, and the outlet clamp in this utility model.

[0029] Explanation of reference numerals in the attached drawings: 1. Slide rail; 2. Slider; 3. Lifting cylinder; 4. Pushing cylinder; 5. Rotary tightening mechanism; 6. Tightening assembly; 61. Adsorption valve; 62. Adsorption tube; 63. Tightening tube; 631. Spline groove; 64. Extension tube; 7. Feeding tube; 8. Gun head assembly; 81. Fixing block; 82. Grip cylinder; 83. Straightening gripper; 831. Single clamping plate; 832. Double clamping plate; 8321. Grip groove; 84. Pushing cylinder; 85. Slide pusher block; 851. Pushing slide groove; 86. Outlet tube gripper; 861. Slope; 862. Plane; 863. Slide connecting rod; 864. Fixing connecting rod; 865. Spring; 9. Double-ended stud; 91. Threaded head; 92. Ring plate; 93. Connecting rod; 94. Spline head. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] Example 1, please refer to Figure 1-9 The present invention provides the following technical solution:

[0033] Specifically, it refers to a blow-type tightening device for double-ended studs, see [reference]. Figure 1-2 The system includes a slide rail 1, a slider 2 slidably connected to one side of the slide rail 1, a rotary tightening mechanism 5 at the top of the slider 2, and the slider 2 and the slide rail 1 cooperate to restrict the direction of movement. The other two sides of the slide rail 1 are respectively provided with a lifting cylinder 3 and a pushing cylinder 4, which are used to provide driving function to realize up and down movement. The output end of the rotary tightening mechanism 5 is connected to a tightening component 6, which is used to adsorb the double-ended stud 9. The double-ended stud 9 has a threaded head 91, a ring 92, a connecting rod 93 and a spline head 94. The bottom end of the tightening component 6 is provided with a gun head component 8, which is used to straighten and assist the tightening component 6 in adsorbing the double-ended stud 9. A feeding pipe 7 is provided on one side of the gun head component 8, which is used to blow the double-ended stud 9.

[0034] See Figure 3-4 The tightening assembly 6 includes an adsorption valve 61, which is fixedly connected to the slider 2 and slides on the slide rail 1 with the slider 2. An adsorption tube 62 is rotatably connected to the center of the adsorption valve 61. The adsorption tube 62 has a hollow structure and is connected to the air passages at both ends of the adsorption valve 61. A tightening tube 63 is fixedly connected to the bottom end of the adsorption tube 62. A spline groove 631 is formed on the inner wall of the bottom end of the tightening tube 63, and the spline groove 631 is adapted to the shape of the spline head 94. An extension tube 64 is fixedly connected to the outer wall of the bottom end of the tightening tube 63. The inner diameter of the extension tube 64 is larger than the inner diameter of the spline groove 631, and the inner diameter of the extension tube 64 is not smaller than the outer diameter of the connecting rod 93.

[0035] See Figure 5-9The gun head assembly 8 includes a fixing block 81, which is fixedly connected to the bottom end of the slide rail 1. The fixing block 81 is slidably connected to the adsorption tube 62, and a bearing is provided between the fixing block 81 and the adsorption tube 62 to achieve a rotational connection. A gripper cylinder 82 is provided on the side of the fixing block 81 away from the feeding tube 7, and a straightening gripper 83 is connected to the output end of the gripper cylinder 82. The straightening gripper 83 includes a single gripper 831 and a double gripper 832. The double gripper 832 has a clamping groove 8321, which is used to reserve space for the single gripper 831 during straightening, so as to more stably clamp the double-headed stud 9. The gun head assembly 8 also includes a pushing cylinder 84, which is fixedly connected to the fixed block 81 on the side away from the gripper cylinder 82. The output end of the pushing cylinder 84 is connected to a sliding push block 85, which has two sets of pushing slides 851. Two sets of tube-exit grippers 86 are arranged on the sliding push block 85 near the center of the fixed block 81. The two sets of tube-exit grippers 86 are symmetrically arranged along the center line of the fixed block 81. The inner wall of the tube-exit grippers 86 has a slope 861 and a flat surface 86. 2. The slope 861 and the plane 862 are arranged around the axis of the fixed block 81. The pipe outlet clamp 86 is slidably connected to the sliding groove 851 through the sliding groove connecting rod 863. A fixed connecting rod 864 is provided at the end of the pipe outlet clamp 86 away from the sliding groove connecting rod 863. The pipe outlet clamp 86 is rotatably connected to the fixed block 81 through the fixed connecting rod 864. A spring 865 is provided at the top of the pipe outlet clamp 86 near the fixed block 81. The spring 865 is used to assist the pipe outlet clamp 86 in resetting.

[0036] In use, firstly, the double-ended stud 9 is fed into the fixed block 81 through the feeding pipe 7, and the double-ended stud 9 falls downward into the outlet clamp 86. If the posture is normal after falling, the bottom surface of the ring plate 92 is in contact with the plane 862. If the posture is abnormal after falling, the bottom end of the threaded head 91 may be in contact with the slope 861 or the slope 861, and the double-ended stud 9 is in an inclined state. By driving the clamping cylinder 82, the single clamping plate 831 and the double clamping plate 832 clamp towards the center, clamping the connecting rod 93 and straightening the double-ended stud 9. Then, the straightening clamp 83 is released, so that the bottom surface of the ring plate 92 is in contact with the plane 862, and its posture is normal. The clamping cylinder 82 and the straightening clamp 83 prevent the double-ended stud 9 from falling abnormally, reduce the number of times manual intervention is required, and improve work efficiency and quality.

[0037] Then, by driving the push cylinder 4 to overcome the thrust of the lifting cylinder 3, the slider 2 is pushed downward, which drives the rotary tightening mechanism 5 and the tightening assembly 6 to move downward. When the extension tube 64 approaches the double-ended stud 9, the suction valve 61 is driven to create a negative pressure inside the suction tube 62, which adsorbs the double-ended stud 9 into the tightening tube 63 and the extension tube 64. The spline head 94 may be aligned with the spline groove 631 and can be smoothly inserted into it. Alternatively, the spline head 94 may not be aligned with the spline groove 631, and the top surface of the spline head 94 may be in contact with the bottom end of the tightening tube 63. The extension tube 64 can restrict the direction of the connecting rod 93, so that it can only be inserted along the direction of the axis of the extension tube 64, thus avoiding tilting.

[0038] Then, the drive cylinder 84 moves the slide block 85 downward, causing the slide 851 to move downward. The fixed connecting rod 864 restricts the outlet clamp 86 to rotate only, causing the slide connecting rod 863 to move outward according to the direction of the slide 851. This opens the two sets of outlet clamps 86, compresses the spring 865, and releases the slide rail 1, causing the rotary tightening mechanism 5 and tightening assembly 6 to continue moving downward. The suction tube 62 extends out of the outlet clamp 86. When it reaches the working position, the threaded head... When the 91 unit comes into contact with the workpiece, it drives the rotary tightening mechanism 5 to rotate the adsorption tube 62, which in turn drives the tightening tube 63 and the extension tube 64 to rotate, causing the double-ended stud 9 to rotate. At this time, even if the spline head 94 and the spline groove 631 are not in the same position, the spline head 94 can be slid into the spline groove 631 by rotation. By using the tightening tube 63, the extension tube 64 and the negative pressure adsorption for coarse positioning, the problem of the double-ended stud 9 having to be aligned before subsequent tightening operations can be avoided, reducing the alignment time and improving work efficiency.

[0039] Finally, tighten the double-ended stud 9 to complete the task.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A blow nut tightening device for a double-end stud, characterized by: Including slide rail (1), one side of slide rail (1) is connected with sliding block (2) in sliding mode, the top of sliding block (2) is provided with rotating tightening mechanism (5), the output end of rotating tightening mechanism (5) is connected with tightening assembly (6), the bottom of tightening assembly (6) is provided with gun head assembly (8), one side of gun head assembly (8) is provided with feeding pipe (7); Wherein, the gun head assembly (8) includes fixed block (81), the fixed block (81) is provided with clamping jaw air cylinder (82) away from the one side of feeding pipe (7), the output end of clamping jaw air cylinder (82) is connected with righting clamping jaw (83), the righting clamping jaw (83) includes single clamping piece (831) and double clamping piece (832), the double clamping piece (832) is provided with clamping groove (8321).

2. A blow nut assembly for a double ended stud according to claim 1 wherein: The gun head assembly (8) further includes push air cylinder (84), the push air cylinder (84) is fixedly connected on the side of fixed block (81) away from clamping jaw air cylinder (82), the output end of push air cylinder (84) is connected with sliding groove push block (85), the sliding groove push block (85) is provided with two groups of pipe outlet clamping jaws (86) close to the center of fixed block (81), two groups of pipe outlet clamping jaws (86) are symmetrically arranged along the center line of fixed block (81).

3. A blow nut assembly for a double ended stud according to claim 2, wherein: The inner wall of pipe outlet clamping jaw (86) has plane (862), and the plane (862) is arranged around the axis of fixed block (81).

4. A blow nut assembly for a double ended stud as defined in claim 1, wherein: The tightening assembly (6) includes suction valve (61), the center of suction valve (61) is rotatably connected with suction pipe (62), the bottom of suction pipe (62) is fixedly connected with tightening pipe (63), the bottom inner wall of tightening pipe (63) is provided with spline groove (631).

5. A blow nut assembly for a double ended stud according to claim 4 wherein: The bottom outer wall of tightening pipe (63) is fixedly connected with lengthened pipe (64), and the inner wall diameter of lengthened pipe (64) is greater than the inner wall diameter of spline groove (631).

Images