Expansion anchor bolt assembling equipment

Abstract

The expansion anchor bolt assembling equipment comprises a rack, a clamping mechanism, a downward rotating mechanism and a feeding and discharging mechanism, the clamping mechanism comprises an eccentric frame, a pushing frame, a clamping frame, a fixing frame and an extruding mechanism, and an adjusting mechanism comprises a driving groove, a lifting frame, a telescopic clamping column, a downward pressing groove and an elastic cushion. The pushing frame is driven by the eccentric frame to extend or contract, so that the two symmetrically-arranged clamping frames are driven to move oppositely, an anchor bolt assembly is clamped, abrasion caused by the fact that nuts and the like are thrown off by the rotating disc is avoided through the arc-shaped plate, the quality of the assembled anchor bolt assembly can be improved through the clamping mode, and the assembling efficiency is improved. The extrusion mechanism is matched to limit and fix the nut, so that the subsequent down-screwing work of the anchor rod is not influenced; due to self-rotation and descending of the lifting frame, downward rotation installation of the anchor rod is more stable, and thread abrasion caused by forced downward rotation is avoided; an originally-used mechanical arm is omitted, use of devices related to the mechanical arm is reduced, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of expansion anchor bolt assembly equipment, in particular to an expansion anchor bolt assembly equipment. Background Art

[0002] There are many types of anchor bolts, some of which are expanded and anchored by expansion sleeves, and some of which are expanded by expansion rings. Therefore, the processing and assembly methods and equipment used for different types of anchor bolts are different. Among them, for anchor bolts with sleeves, our company uses self-developed equipment to realize two sets of vibrating unloading racks to drive the gasket and nut unloading respectively, and then pre-assembles the sleeve and anchor rod by vertically inserting them into the sleeve. Finally, the mechanical gripper contacts the anchor rod and rotates it, and the anchor rod is rotated and installed into the nut and then ejected.

[0003] After the nuts and washers are cut, the turntable will continue to drive them to rotate. In order to prevent the nuts and washers from being gradually displaced by centrifugal force during rotation, an arc plate is often used to abut against the nuts and washers to limit their position. In order to screw the anchor rod down to make it mesh with the nut, an abutment rod is installed at the center of the mechanical gripper. After the abutment rod abuts against the anchor rod, the mechanical gripper grabs the anchor rod for screwing down and engaging. Therefore, in order to reduce the friction between the arc plate and the nuts and washers, avoid thread damage caused by forced screwing down when the anchor rod thread does not correspond to the nut thread, so as to improve product quality and reduce assembly costs, it is necessary to design an expansion anchor assembly equipment.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0005] Based on this, it is necessary to provide an expansion anchor assembly device to address the above technical problems.

[0006] In order to achieve the above object, the present invention provides an expansion anchor assembly device, comprising: The frame includes a turntable, and the turntable is rotatably mounted on the frame; The clamping mechanism comprises an eccentric frame, a pushing frame, a clamping frame, a fixed frame and an extrusion mechanism, wherein the eccentric frame is fixedly mounted on the frame, the pushing frame is slidably clamped on the turntable, the clamping frames are symmetrically arranged in pairs and are both slidably clamped on the turntable, and when the turntable rotates to different positions, the eccentric frame can drive the pushing frame to move radially along the turntable, so that the two symmetrically arranged clamping frames can be pulled by the pushing frame and move relative to each other, the fixed frame is fixedly mounted on the turntable, and the clamping frame and the fixed frame are both provided with an extrusion mechanism for squeezing the clamping member; The downward rotation mechanism includes a driving groove, a lifting frame, a telescopic clamping column, an elastic mechanism, a downward pressing frame, a downward pressing groove and an elastic pad. The driving groove is arranged on the fixed frame, the driving groove is in the shape of a wave curve, the depth of the driving groove is a step-by-step depth change and the bending part is the starting point of the next step, the lifting frame is rotatably connected to the fixed frame, a plurality of telescopic clamping columns are installed on the lifting frame, the telescopic clamping columns are slidably clamped in the driving groove, an elastic mechanism for supporting the lifting frame to pop up is installed on the lifting frame, a downward pressing frame is installed on the frame, a plurality of downward pressing grooves are arranged on the downward pressing frame, the lifting frame abuts against the downward pressing groove and is lifted and lowered along the arc-shaped lifting curve of the downward pressing groove, and an elastic pad for pressing down the anchor rod is installed on the downward pressing groove; The loading and unloading mechanism is used for loading nuts, washers, sleeves and anchor rods and for unloading expansion anchor bolts after assembly.

[0007] By adopting the above technical scheme, the turntable can be driven to rotate by the stepper motor, so that the turntable can drive the clamping frame and the fixed frame on it to rotate to the upper and lower material positions facing the loading and unloading mechanism to pause for loading and unloading and then rotate again, and the turntable drives the sliding clamping push frame, the clamping frame and the fixed frame on it to rotate, so that due to the sliding clamping connection between the pushing frame and the eccentric frame and the eccentric setting of the eccentric frame relative to the turntable, when the turntable rotates to different positions, the eccentric frame can drive the pushing frame to radially move horizontally to different positions on the turntable, and due to the sliding clamping connection between the pushing frame and the clamping frame, when the pushing frame moves to different positions, it can drive the two symmetrically arranged clamping frames to move relative to each other, so that when the distance between the two clamping frames is large, the loading and unloading mechanism can insert the nut, gasket, sleeve and anchor rod into the clamping frame and the fixed frame, and in the process of inserting them respectively, the distance between the two clamping frames is gradually reduced under the drive of the pushing frame. The nut and washer are gradually reduced in size, and the larger contact area between the nut, gasket, turntable and clamping frame makes it difficult for the two to slip out. Later, when placing the sleeve and anchor rod, the clamping frame has been reduced to a smaller spacing, which can gradually limit the position of the nut and gasket for clamping, and it is preferred to put the anchor rod in when the spacing between the two clamping frames is the smallest, so that the anchor rod can be directly opposite the center of the nut. At this time, the squeezing mechanism is in a compressed state. Later, as the turntable continues to rotate, the anchor rod is screwed down and tightened. At this time, the spacing between the two clamping frames gradually increases, but the squeezing of the nut by the squeezing mechanism makes the anchor rod still directly opposite the center of the nut for screwing down and tightening. When the turntable continues to rotate, the squeezing force of the squeezing mechanism on the nut is weak, and the anchor rod has been driven to rotate down a certain distance. After that, even if the nut shakes a certain amount, the anchor rod can still continue to be screwed down, thereby reducing the friction between the nut and the original arc-shaped limit plate. In order to elastically rotate the anchor rod and avoid forced pressing to rotate and cause thread wear, after the feeding is completed, the fixed frame is continuously driven by the turntable to rotate so that the top end of the fixed frame can abut against a plurality of downward pressing grooves on the downward pressing frame, thereby driving the lifting frame elastically through the elastic mechanism, and the downward pressing groove drives the lifting frame to descend, so that the lifting frame slides up and down on the fixed frame. When the lifting frame rises or falls, the telescopic clamping column on it can slide in the driving groove on the fixed frame, and the lifting frame is driven by the telescopic clamping column to rotate around the fixed frame through the fluctuation curve of the driving groove, and the stepped depth change of the driving groove makes the telescopic clamping column slide when lifting and lowering. The bend of the driving groove can automatically pop out and get stuck at the next step, so that when it is driven to move again, the telescopic clamping column can only continue to slide along the driving groove without rotating and sliding, so that the continuous downward pressure and rotation of the lifting frame and the elastic squeezing of the anchor rod by the elastic pad on it avoid the thread wear caused by the forced downward rotation of the manipulator and reduce the production cost; the diameter of the turntable can be increased so that more clamping frames can be installed on the turntable and the length of the downward pressure frame can be increased, so that the anchor rod can be rotated to different depths, and a through hole can be provided below the nut after it is clamped to facilitate the screwing out of the anchor rod; the driving groove can be a continuous wave line type, a continuous V line type, and other types.

[0008] Optionally, the circumference of the arc between the adjacent highest point and the lowest point in the lower pressure groove is greater than or equal to the circumference of the arc between the adjacent highest point and the lowest point in the driving groove, and the vertical spacing between the adjacent highest point and the lowest point in the lower pressure groove is greater than or equal to the vertical spacing between the adjacent highest point and the lowest point in the driving groove.

[0009] By adopting the above technical scheme, when the pressure is equal to the pressure, the lifting frame is always in contact with the lower pressure groove, and when the adjacent highest point on the lower pressure groove slides to the lowest point, the telescopic clamping column driven to rotate thereon can just slide from the adjacent highest point on the lower pressure groove to the lowest point, so that the lifting frame will not be pressed down incompletely, so that the telescopic clamping column drives the lifting frame to rotate; and when the pressure is greater than the pressure, the lifting frame will not be in contact with the top of the lower pressure groove, that is, the lifting frame only contacts with the two sides of the lower pressure groove, and when the lifting frame slides to the bottom end along one side wall of the lower pressure groove, the lifting frame can be completely pressed down, thereby achieving the goal of completely pressing the lifting frame down and making the telescopic clamping column jam into the next step of the driving groove.

[0010] Optionally, the lifting frame is arc-shaped and has a circumference greater than half of the circumference of the concentric circle, so that at least two telescopic clamping columns are located in the driving groove during the rotation of the lifting frame.

[0011] By adopting the above technical solution, the fixed frame and the lifting frame are concentric arcs, and the arc length of the lifting frame is greater than half of the circumference of the concentric circle, that is, the lifting frame is always partially in contact with the fixed frame, thereby preventing the lifting frame from falling off, and the lifting frame can be a complete ring, the nut and the gasket are inserted from the bottom, and the sleeve and the anchor rod are dropped from the top, so the lifting frame can bounce up after the anchor rod is tightened, leaving space for the assembled anchor bolt to be pushed out; when the lifting frame is in an arc shape, there should be at least two telescopic clamping columns located in the driving groove, so as to limit the lifting frame and also to prevent the lifting frame from falling off.

[0012] Optionally, the frame further includes a rotary drive device, a gear and an annular gear ring, the rotary drive device is mounted on the frame, a gear is mounted on the output end of the rotary drive device, the annular gear ring is mounted on the turntable, and the gear and the annular gear ring are meshed and connected.

[0013] By adopting the above technical solution, the rotary drive device is preferably a stepper motor, which drives the gear to rotate through the rotary drive device, and the gear is engaged with the annular gear ring on the turntable, so that the rotary drive device can drive the turntable to rotate, and through the different transmission ratios of the gear and the annular gear ring, the turntable can drive the fixed frame to stop at the appropriate position for loading and unloading and then rotate.

[0014] Optionally, an annular groove is provided in the eccentric frame, and a roller is rotatably installed on the pushing frame, and the roller is rotatably connected to the annular groove.

[0015] By adopting the above technical solution, the roller is clamped in the annular groove on the eccentric frame and is rotationally connected thereto, thereby realizing the sliding connection between the eccentric frame and the pushing frame.

[0016] Optionally, the turntable is provided with a radial groove, the pushing frame is slidably engaged in the radial groove, the turntable is provided with a transverse groove, the clamping frame is slidably engaged in the transverse groove, the clamping frame is inclined, the clamping frame is provided with a slot, and clamping blocks are installed on both sides of the pushing frame, and the clamping blocks are slidably engaged in the slots.

[0017] By adopting the above technical solution, the pushing frame is slidably engaged in the radial groove, thereby realizing the sliding engagement of the pushing frame on the turntable, and the clamping frame is slidably engaged in the transverse groove, thereby realizing the sliding engagement of the clamping frame on the turntable, and due to the inclined setting of the clamping frame and the sliding engagement of the clamping block on the pushing frame in the clamping groove on the clamping frame, when the pushing frame moves radially, the clamping frame can be limited by the transverse groove, thereby pulling the two clamping frames to move in opposite directions.

[0018] Optionally, a semi-conical frame is installed on the clamping frame, the top end of the semi-conical frame is in contact with the lower pressing groove, and one side of the semi-conical frame is provided with a slot for inserting an anchor rod and a sleeve.

[0019] By adopting the above technical solution, the semi-conical frame can be abutted against the lower pressure groove, and the semi-conical frame can be directly replaced after wear. Since the lifting frame may only rotate one-third or one-quarter of the length of the concentric circle when passing through a lower pressure groove, the number of lower pressure grooves needs to be set so that the semi-conical frame on the lifting frame can still face outward after passing through all the lower pressure grooves, thereby facilitating the next placement of anchor rods and sleeves.

[0020] Optionally, the clamping frame includes a V-shaped frame and an arc block, the V-shaped frame is slidably engaged in the transverse groove, the groove is arranged on a side of the V-shaped frame close to the pushing frame, and the arc block is installed on the V-shaped frame.

[0021] By adopting the above technical solution, the V-shaped frame limits the corners of the nut, the gap between the arc block and the V-shaped frame limits the annular gasket, and the arc block limits the sleeve.

[0022] Optionally, the extrusion mechanism includes a slide groove, a slider and a spring 1. The slide groove is arranged on a side of the V-shaped frame away from the pushing frame and on the fixed frame. The slider is slidably connected in the slide groove. The spring 1 is installed in the slide groove. The output end of the spring 1 is connected to the slide groove.

[0023] By adopting the above technical solution, the extrusion mechanism installed on the outer sides of the two symmetrical V-shaped frames and the fixed frame can squeeze the nut inward in three directions, so that the nut can be firmly fixed. When fixing, the slider sliding in the slide groove squeezes the nut under the pressure of spring 1.

[0024] Optionally, the telescopic clamping column is slidably clamped in the lifting frame, a second spring is installed in the lifting frame, and an output end of the second spring is connected to the telescopic clamping column.

[0025] By adopting the above technical solution, the telescopic clamping column is slidably clamped on the lifting frame and is squeezed by the second spring, so that the telescopic clamping column has elasticity and can pop out and clamp into the next step when sliding in the driving groove.

[0026] Optionally, the elastic mechanism includes a plurality of abutment shafts and a spring three, the abutment shaft is slidably clamped on the lifting frame, the output end of the abutment shaft abuts against the fixed frame, and the output end of the spring three is connected to the abutment shaft.

[0027] By adopting the above technical solution, a plurality of abutment shafts slide in the lifting frame and are squeezed by the spring three, and the output end of the abutment shaft abuts against the fixed frame, so that after the lifting frame is pressed down, it can bounce up by the pressure of the spring three on the abutment shaft.

[0028] Optionally, a chamfer is provided on one side of the abutment shaft in the rotational forward direction.

[0029] By adopting the above technical solution, after the abutment shaft rotates out of abutment with the fixing frame, when the lifting frame rotates to abut with the fixing frame again, the Shudie abutment shaft can slide smoothly into the top of the fixing frame through chamfering.

[0030] Optionally, the elastic pad is a smooth soft pad, and chamfers are provided at both upper and lower ends of the elastic pad.

[0031] By adopting the above technical solution, the sleeve can fall from between the elastic pads, and the anchor rod can also fall through the smooth surface and chamfer setting of the elastic pad when falling due to its own gravity. Then, during the downward rotation process, the chamfer on the lower side of the elastic pad elastically squeezes the anchor rod so that it can be driven to rotate downward. The chamfer setting can prevent the anchor rod from being clamped and lifted by the elastic pad when the elastic pad is driven to rise; the length of the elastic pad is adapted to the length of the lifting frame.

[0032] Optionally, the loading and unloading mechanism includes a vibrating unloading tray and a robotic arm. There are two vibrating unloading trays arranged on one side of the turntable, one for placing nuts and the other for placing gaskets. The end of the discharge port points to the fixed frame. In the rotation direction of the turntable, the material first passes through the vibrating unloading tray of the nut, and then passes through the vibrating unloading tray of the gasket. After the turntable passes the vibrating unloading tray, the robotic arm first places a sleeve from the top of the clamping frame and the fixed frame into them, and then places the anchor rod.

[0033] By adopting the above technical solution, loading is facilitated. When the turntable drives the fixed frame to rotate to the vibrating unloading plate, the vibrating unloading plate pushes the nut and the gasket into the fixed frame and the clamping frame, and then the mechanical arm drops the sleeve and the anchor rod in sequence from above the fixed frame and the clamping frame, so that the assembly of the expansion anchor bolt can be completed after the anchor rod is screwed down.

[0034] Optionally, the loading and unloading mechanism further includes an ejector cylinder, which is mounted on an eccentric frame. The fixed frame is provided with an ejector slot for the ejector cylinder to extend and pass through, and the fixed frame will pass through the ejector cylinder only after passing through the lower pressure frame.

[0035] By adopting the above technical scheme, the unloading of the expansion anchor bolts after assembly is facilitated. After the expansion anchor bolts are tightened by the lower pressure frame, the turntable drives the fixed frame to rotate to the ejection cylinder and pause. At this time, the output end of the ejection cylinder can extend out of the ejection groove to eject the assembled expansion anchor bolts. An opening for the ejection cylinder to pass through can be provided at the center of the pushing frame, so as to avoid collision between the ejection cylinder and the pushing frame when pushing out the expansion anchor bolts.

[0036] Optionally, an arc-shaped clamping plate is installed in the fixing frame, and the arc-shaped clamping plate cooperates with the arc-shaped block to clamp and fix the sleeve.

[0037] By adopting the above technical solution, the sleeve is squeezed by the arc-shaped clamping plate and the arc-shaped block, and the fixing frame with a larger diameter above the arc-shaped clamping plate does not affect the descent of the anchor rod.

[0038] This technical solution has at least the following beneficial effects: 1. The eccentric frame drives the push frame on the turntable to extend or contract, thereby driving the two symmetrically arranged clamping frames to move in opposite directions, so that the expansion anchor assembly can be clamped after loading. Compared with the previous method of using arc plates to prevent the nuts from being thrown off the turntable and causing wear, this clamping method can improve the quality of the assembled product, and the extrusion mechanism is used to limit and fix the nuts, so that the subsequent downward rotation of the anchor rod will not be affected; 2. The telescopic clamp column slides in the driving groove, so that the lifting frame can rotate in the same direction when being pressed down by the lower pressing frame, so that the lifting frame can rotate and descend, and the elastic pad squeezes the anchor rod, making the downward rotation installation of the anchor rod more stable, avoiding thread wear caused by forced downward rotation; 3. The original robot clamps the anchor rod and drives it to tighten it, but now it is tightened by the cooperation of the lifting frame and the lower pressure groove, which reduces the setting of the high-cost robot and the use of programming control devices related to the robot, thereby reducing the production cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A three-dimensional diagram of a polishing device according to an embodiment of the present invention; Figure 2 A second perspective view of a polishing device according to an embodiment of the present invention; Figure 3 A partial three-dimensional diagram of a turntable of a polishing device according to an embodiment of the present invention; Figure 4 An exploded view of a turntable and a clamping mechanism of a clamping mechanism according to an embodiment of the present invention; Figure 5 For an embodiment of the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 An exploded view of a clamping mechanism of a polishing device according to an embodiment of the present invention; Figure 7 A top view of a turntable according to an embodiment of the present invention; Figure 8 A cross-sectional view of a fixing frame according to an embodiment of the present invention; Fig. 9 A cross-sectional view of a clamping frame according to an embodiment of the present invention; Fig.10 A cross-sectional view of a lifting frame according to an embodiment of the present invention; In the figure, 1, frame; 11, turntable; 12, rotary drive device; 13, gear; 14, annular gear ring; 2, clamping mechanism; 21, eccentric frame; 211, annular groove; 212, roller; 22, push frame; 221, radial groove; 222, transverse groove; 23, clamping frame; 231, clamping groove; 232, clamping block; 233, semi-conical frame; 234, V-shaped frame; 235, arc block; 24, fixed frame; 241, arc shaped clamping plate; 25, extrusion mechanism; 251, slide groove; 252, slider; 253, spring one; 3, downward rotation mechanism; 31, driving groove; 32, lifting frame; 321, spring two; 33, telescopic clamping column; 34, elastic mechanism; 341, abutment shaft; 342, spring three; 35, lower pressure frame; 36, lower pressure groove; 37, elastic pad; 4, loading and unloading mechanism; 41, vibrating unloading plate; 42, ejection cylinder; 43, ejection groove. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0041] See also Figures 1 to 10 The present application provides an expansion anchor assembly device, including: The frame 1 includes a turntable 11, and the turntable 11 is rotatably mounted on the frame 1; The clamping mechanism 2 includes an eccentric frame 21, a pushing frame 22, a clamping frame 23, a fixing frame 24 and an extrusion mechanism 25. The eccentric frame 21 is fixedly mounted on the frame 1, the pushing frame 22 is slidably clamped on the turntable 11, and the clamping frames 23 are symmetrically arranged in pairs and are both slidably clamped on the turntable 11. When the turntable 11 rotates to different positions, the eccentric frame 21 can drive the pushing frame 22 to radially displace along the turntable 11, so that the two symmetrically arranged clamping frames 23 can be pulled by the pushing frame 22 and relatively displaced. The fixing frame 24 is fixedly mounted on the turntable 11, and the clamping frame 23 and the fixing frame 24 are both provided with an extrusion mechanism 25 for squeezing the nut; The downward rotation mechanism 3 includes a driving groove 31, a lifting frame 32, a telescopic clamping column 33, an elastic mechanism 34, a lower pressing frame 35, a lower pressing groove 36 and an elastic pad 37. The driving groove 31 is arranged on the fixed frame 24, and the driving groove 31 is in the shape of a wave curve. The depth of the driving groove 31 changes in a step-by-step manner, and the bending part is the starting point of the next step. The lifting frame 32 is rotatably connected to the fixed frame 24, and a plurality of telescopic clamping columns 33 are installed on the lifting frame 32. The telescopic clamping columns 33 are slidably clamped in the driving groove 31. The lifting frame 32 is installed with an elastic mechanism 34 for supporting the lifting frame 32 to pop up. The frame 1 is installed with a lower pressing frame 35, and the lower pressing frame 35 is provided with a plurality of lower pressing grooves 36. The lifting frame 32 abuts against the lower pressing grooves 36 and is lifted and lowered along the arc-shaped lifting curve of the lower pressing grooves 36. The lower pressing grooves 36 are installed with an elastic pad 37 for pressing down the anchor rod; The loading and unloading mechanism 4 is used for loading nuts, washers, sleeves and anchor rods and for unloading expansion anchor bolts after assembly.

[0042] The turntable 11 can be driven to rotate by a stepper motor, so that the turntable 11 can drive the clamping frame 23 and the fixed frame 24 on it to rotate to the upper and lower material positions facing the loading and unloading mechanism 4 to stop loading and unloading and then rotate. The push frame 22, the clamping frame 23 and the fixed frame 24 on it that are slidably connected are driven to rotate by the turntable 11, so that the push frame 22 and the eccentric frame 21 are slidably connected and the eccentric frame 21 is eccentrically arranged relative to the turntable 11, so that when the turntable 11 rotates to different positions, The eccentric frame 21 can drive the push frame 22 to move radially to different positions on the turntable 11, and the push frame 22 is slidably engaged with the clamping frame 23. When the push frame 22 moves to different positions, it can drive the two symmetrically arranged clamping frames 23 to move relative to each other. Therefore, when the distance between the two clamping frames 23 is large, the loading and unloading mechanism 4 can insert the nut, gasket, sleeve and anchor rod into the clamping frame 23 and the fixing frame 24. In the process of inserting them respectively, the distance between the two clamping frames 23 is The larger contact area between the nut and the washer and the rotating disk 11 and the clamping frame 23 makes it difficult for the two to slide out. Later, when placing the sleeve and the anchor rod, the clamping frame 23 has been reduced to a smaller spacing, which can gradually limit the position of the nut and the washer for clamping, and it is preferred to put the anchor rod in when the spacing between the two clamping frames 23 is the smallest, so that the anchor rod can be directly opposite the center of the nut. At this time, the squeezing mechanism 25 is in a compressed state, and then the rotating disk 11 continues to rotate, and the anchor rod is screwed down and tightened. At this time, the spacing between the two clamping frames 23 gradually increases, but the squeezing mechanism 25 squeezes the nut, so that the anchor rod can still be screwed down and tightened directly against the center of the nut. When the rotating disk 11 continues to rotate, the squeezing force of the squeezing mechanism 25 on the nut is weak, and the anchor rod has been driven to rotate down a certain distance. Even if the nut shakes a certain amount, the anchor rod can still continue to be screwed down, thereby reducing the friction between the nut and the original arc-shaped limit plate.In order to make the anchor rod elastically rotate downward and avoid forced pressing and rotating downward to cause thread wear, after the feeding is completed, the fixed frame 24 continues to be driven by the turntable 11 to rotate so that the top of the fixed frame 24 can abut against the several downward pressing grooves 36 on the downward pressing frame 35, so that the lifting frame 32 is elastically driven by the elastic mechanism 34, and the downward pressing grooves 36 drive the lifting frame 32 to descend, so that the lifting frame 32 slides up and down on the fixed frame 24. When the lifting frame 32 rises or falls, the telescopic clamping column 33 on it can slide in the driving groove 31 on the fixed frame 24, and the telescopic clamping column 33 drives the lifting frame 32 to rotate around the fixed frame 24 through the fluctuation curve of the driving groove 31, and the stepped depth change of the driving groove 31 makes The telescopic clamping column 33 can automatically pop out at the bend of the driving groove 31 when it is lifted and slid, and be stuck at the next step. Therefore, when it is driven to move again, the telescopic clamping column 33 can only continue to slide along the driving groove 31 without rotating and sliding. Therefore, the continuous downward pressure and rotation of the lifting frame 32 and the elastic squeezing of the anchor rod by the elastic pad 37 thereon avoid the thread wear caused by the forced downward rotation of the manipulator and reduce the production cost; by increasing the diameter of the turntable 11, more clamping frames 23 can be installed on the turntable 11 and the length of the downward pressure frame 35 can be increased, so that the anchor rod can be rotated to different depths. At the same time, a through hole can be provided below the nut after it is clamped to facilitate the screwing out of the anchor rod; the driving groove 31 can be a continuous wave line type, a continuous V line type, and other types.

[0043] In one embodiment, see Figures 2 to 5 The arc circumference between the adjacent highest point and the lowest point in the lower pressure groove 36 is greater than or equal to the arc circumference between the adjacent highest point and the lowest point in the driving groove 31, and the vertical spacing between the adjacent highest point and the lowest point in the lower pressure groove 36 is greater than or equal to the vertical spacing between the adjacent highest point and the lowest point in the driving groove 31.

[0044] By adopting the above technical scheme, when the pressure is equal to that of the lifting frame 32, the lifting frame 32 always abuts against the downward pressing groove 36, and when the adjacent highest point on the downward pressing groove 36 slides to the lowest point, the telescopic clamping column 33 driven to rotate thereon can just slide from the adjacent highest point on the downward pressing groove 36 to the lowest point, so that the lifting frame 32 will not be pressed down completely, and the telescopic clamping column 33 drives the lifting frame 32 to rotate; and when the pressure is greater than that of the lifting frame 32, the lifting frame 32 does not abut against the top of the downward pressing groove 36, that is, the lifting frame 32 only abuts against the two sides of the downward pressing groove 36, and when the lifting frame 32 slides to the bottom end along one side wall of the downward pressing groove 36, the lifting frame 32 can be completely pressed down, thereby achieving the lifting frame 32 being pressed down completely, so that the telescopic clamping column 33 is stuck in the next step of the driving groove 31.

[0045] In one embodiment, see Figure 3The lifting frame 32 is arc-shaped and has a circumference greater than half of the circumference of the concentric circle, so that at least two telescopic clamping columns 33 are located in the driving groove 31 during the rotation of the lifting frame 32.

[0046] By adopting the above technical solution, the fixed frame 24 and the lifting frame 32 are concentric arcs, and the arc length of the lifting frame 32 is greater than half of the circumference of the concentric circle, that is, the lifting frame 32 is always partially in contact with the fixed frame 24, so as to prevent the lifting frame 32 from falling off, and the lifting frame 32 can be a complete ring, the nut and the gasket are inserted from the bottom, and the sleeve and the anchor rod are dropped from the top, so the lifting frame 32 can bounce up after the anchor rod is tightened, leaving space for the assembled anchor bolt to be pushed out; when the lifting frame 32 is arc-shaped, there should be at least two telescopic clamping columns 33 thereon located in the driving groove 31, so as to limit the lifting frame 32, and also to prevent the lifting frame 32 from falling off.

[0047] In one embodiment, see Figure 2 The frame 1 also includes a rotation driving device 12, a gear 13 and an annular gear ring 14. The rotation driving device 12 is installed on the frame 1. The output end of the rotation driving device 12 is installed with a gear 13. The annular gear ring 14 is installed on the turntable 11. The gear 13 and the annular gear ring 14 are meshed and connected.

[0048] By adopting the above technical solution, the rotating drive device 12 is preferably a stepper motor, so that the rotating drive device 12 drives the gear 13 to rotate, and the gear 13 is engaged with the annular ring gear 14 on the turntable 11, so that the rotating drive device 12 can drive the turntable 11 to rotate, and through the different transmission ratios of the gear 13 and the annular ring gear 14, the turntable 11 can drive the fixed frame 24 to stop at a suitable position for loading and unloading and then rotate.

[0049] In one embodiment, see Figure 4 An annular groove 211 is provided in the eccentric frame 21 , and a roller 212 is rotatably mounted on the pushing frame 22 , and the roller 212 is rotatably connected to the annular groove 211 .

[0050] By adopting the above technical solution, the roller 212 is clamped in the annular groove 211 on the eccentric frame 21 and is rotationally connected thereto, thereby realizing the sliding connection between the eccentric frame 21 and the pushing frame 22.

[0051] In one embodiment, see Figure 4 A radial groove 221 is provided on the turntable 11, and the pushing frame 22 is slidably engaged in the radial groove 221. A transverse groove 222 is provided on the turntable 11, and the clamping frame 23 is slidably engaged in the transverse groove 222. The clamping frame 23 is inclined and has a card slot 231. Card blocks 232 are installed on both sides of the pushing frame 22, and the card blocks 232 are slidably engaged in the card slot 231.

[0052] By adopting the above technical solution, the pushing frame 22 is slidably engaged in the radial groove 221, thereby realizing the sliding engagement of the pushing frame 22 on the turntable 11, and the clamping frame 23 is slidably engaged in the transverse groove 222, thereby realizing the sliding engagement of the clamping frame 23 on the turntable 11. In addition, due to the inclined setting of the clamping frame 23 and the sliding engagement of the block 232 on the pushing frame 22 in the slot 231 on the clamping frame 23, when the pushing frame 22 moves radially, the clamping frame 23 can be limited by the transverse groove 222, thereby pulling the two clamping frames 23 to move in opposite directions.

[0053] In one embodiment, see Figure 2 A semi-conical frame 233 is installed on the clamping frame 23, the top of the semi-conical frame 233 is in contact with the lower pressing groove 36, and one side of the semi-conical frame 233 is provided with a slot for placing an anchor rod and a sleeve.

[0054] By adopting the above technical solution, the semi-conical frame 233 can be abutted against the lower pressure groove 36, and the semi-conical frame 233 can be directly replaced after wear. Since the lifting frame 32 may only rotate one-third or one-quarter of the length of the concentric circle when passing through a lower pressure groove 36, the number of lower pressure grooves 36 needs to be set so that the semi-conical frame 233 on the lifting frame 32 can still face outward after passing through all the lower pressure grooves 36, thereby facilitating the next placement of anchor rods and sleeves.

[0055] In one embodiment, see Figure 6 The clamping frame 23 includes a V-shaped frame 234 and an arc block 235 . The V-shaped frame 234 is slidably engaged in the transverse groove 222 . The engaging groove 231 is provided on one side of the V-shaped frame 234 close to the pushing frame 22 . The arc block 235 is installed on the V-shaped frame 234 .

[0056] By adopting the above technical solution, the V-shaped frame 234 limits the corners of the nut, the gap between the arc block 235 and the V-shaped frame 234 limits the annular gasket, and the arc block 235 limits the sleeve.

[0057] In one embodiment, see Figure 8 and Fig. 9 The extrusion mechanism 25 includes a slide groove 251, a slider 252 and a spring 253. The slide groove 251 is arranged on the side of the V-shaped frame 234 away from the pushing frame 22 and on the fixed frame 24. The slider 252 is slidably connected in the slide groove 251. The spring 253 is installed in the slide groove 251, and the output end of the spring 253 is connected to the slide groove 251.

[0058] By adopting the above technical solution, the extrusion mechanism 25 installed on the outer sides of the two symmetrical V-shaped frames 234 and the fixed frame 24 can extrude the nut inward in three directions, so that the nut can be firmly fixed. When fixing, the slider 252 sliding in the slide groove 251 squeezes the nut under the pressure of the spring 253.

[0059] In one embodiment, see Fig.10 The telescopic clamping column 33 is slidably clamped in the lifting frame 32 , and a second spring 321 is installed in the lifting frame 32 , and the output end of the second spring 321 is connected to the telescopic clamping column 33 .

[0060] By adopting the above technical solution, the telescopic clamping column 33 is slidably clamped on the lifting frame 32 and squeezed by the second spring 321, so that the telescopic clamping column 33 has elasticity and can pop out and clamp into the next step when sliding in the driving groove 31.

[0061] In one embodiment, see Fig.10 The elastic mechanism 34 includes a plurality of abutment shafts 341 and spring three 342 . The abutment shaft 341 is slidably connected to the lifting frame 32 . The output end of the abutment shaft 341 abuts against the fixing frame 24 . The output end of the spring three 342 is connected to the abutment shaft 341 .

[0062] By adopting the above technical solution, a plurality of abutment shafts 341 slide in the lifting frame 32 and are squeezed by the spring three 342, and the output end of the abutment shaft 341 abuts against the fixed frame 24, so that after the lifting frame 32 is pressed down, it can bounce up due to the pressure of the spring three 342 on the abutment shaft 341.

[0063] In one embodiment, a chamfer is provided on one side of the abutment shaft 341 in the rotational forward direction.

[0064] By adopting the above technical solution, after the abutment shaft 341 rotates out of contact with the fixing frame 24, when the lifting frame 32 rotates to contact with the fixing frame 24 again, the Shudie abutment shaft 341 can slide smoothly into the top of the fixing frame 24 through chamfering.

[0065] In one embodiment, the elastic pad 37 is a smooth soft pad, and both upper and lower ends of the elastic pad 37 are chamfered.

[0066] By adopting the above technical solution, the sleeve can fall from between the elastic pads 37, and the anchor rod can also fall through the smooth surface and chamfer setting of the elastic pad 37 when it falls due to its own gravity. Then, during the downward rotation process, the chamfer on the lower side of the elastic pad 37 elastically squeezes the anchor rod so that it can be driven to rotate downward. The chamfer setting can prevent the anchor rod from being clamped and lifted by the elastic pad when the elastic pad 37 is driven to rise; the length of the elastic pad 37 is adapted to the length of the lifting frame 32.

[0067] In one embodiment, the loading and unloading mechanism 4 includes a vibrating feeding tray 41 and a robotic arm. There are two vibrating feeding trays 41, which are arranged on one side of the turntable 11. One is for placing nuts and the other is for placing gaskets. The end of the discharge port points to the fixed frame 24. In the rotation direction of the turntable 11, the vibrating feeding tray 41 of the nut is passed first, and then the vibrating feeding tray 41 of the gasket is passed. After the turntable 11 passes the vibrating feeding tray 41, the robotic arm first places a sleeve from the top of the clamping frame 23 and the fixed frame 24 into them, and then places the anchor rod.

[0068] By adopting the above technical solution, loading is facilitated. When the turntable 11 drives the fixed frame 24 to rotate to the vibrating unloading plate 41, the vibrating unloading plate 41 generates vibration and pushes the nuts and gaskets into the fixed frame 24 and the clamping frame 23. Then the mechanical arm drops the sleeve and the anchor rod in sequence from above the fixed frame 24 and the clamping frame 23, so that the assembly of the expansion anchor bolt can be completed after the anchor rod is screwed down.

[0069] In one embodiment, the loading and unloading mechanism 4 further includes an ejector cylinder 42 , which is mounted on the eccentric frame 21 . The fixed frame 24 is provided with an ejector slot 43 for the ejector cylinder to extend and pass through. The fixed frame 24 passes through the ejector cylinder 42 only after passing through the lower pressure frame 35 .

[0070] By adopting the above technical scheme, the unloading of the expansion anchor after assembly is facilitated. After the expansion anchor is tightened by the lower pressing frame 35, the turntable 11 drives the fixing frame 24 to rotate to the ejection cylinder 42 and pause. At this time, the output end of the ejection cylinder 42 can extend out from the ejection groove 43 to eject the assembled expansion anchor. An opening for the ejection cylinder 42 to pass through can be provided at the center of the pushing frame 22, so as to avoid the ejection cylinder 42 colliding with the pushing frame 22 when pushing out the expansion anchor.

[0071] In one embodiment, see Figure 6 An arc-shaped clamping plate 241 is installed in the fixing frame 24, and the arc-shaped clamping plate 241 cooperates with the arc-shaped block 235 to clamp and fix the sleeve.

[0072] By adopting the above technical solution, the sleeve is squeezed by the arc-shaped clamping plate 241 and the arc-shaped block 235, while the fixing frame 24 with a larger diameter above the arc-shaped clamping plate 241 does not affect the descent of the anchor rod.

[0073] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An expansion anchor assembly device, characterized in that: include: The frame (1) comprises a turntable (11), wherein the turntable (11) is rotatably mounted on the frame (1); The clamping mechanism (2) comprises an eccentric frame (21), a pushing frame (22), a clamping frame (23), a fixed frame (24) and a squeezing mechanism (25), wherein the eccentric frame (21) is fixedly mounted on the frame (1), the pushing frame (22) is slidably clamped on the turntable (11), and the clamping frames (23) are symmetrically arranged in pairs and are both slidably clamped on the turntable (11). When the turntable (11) rotates to different positions, the eccentric frame (21) can drive the pushing frame (22) to move radially along the turntable (11), so that the two symmetrically arranged clamping frames (23) can be pulled by the pushing frame (22) and move relative to each other. The fixed frame (24) is fixedly mounted on the turntable (11), and the clamping frames (23) and the fixed frame (24) are both provided with squeezing mechanisms (25) for squeezing the clamping member. The downward rotation mechanism (3) comprises a driving groove (31), a lifting frame (32), a telescopic clamping column (33), an elastic mechanism (34), a downward pressing frame (35), a downward pressing groove (36) and an elastic pad (37), wherein the driving groove (31) is arranged on the fixed frame (24), the driving groove (31) is in the shape of a wave curve, the depth of the driving groove (31) changes in a step-like manner and the bending position is the starting point of the next step, the lifting frame (32) is rotatably connected to the fixed frame (24), and the lifting frame (32) is equipped with a plurality of A telescopic clamping column (33) is slidably clamped in the driving groove (31); an elastic mechanism (34) for supporting the lifting frame (32) to spring up is installed on the lifting frame (32); a lower pressing frame (35) is installed on the frame (1); a plurality of lower pressing grooves (36) are provided on the lower pressing frame (35); the lifting frame (32) abuts against the lower pressing grooves (36) and is lifted and lowered along the arc-shaped lifting curve of the lower pressing grooves (36); and an elastic pad (37) for pressing down the anchor rod is installed on the lower pressing grooves (36); The loading and unloading mechanism (4) is used for loading nuts, washers, sleeves and anchor rods and for unloading expansion anchor bolts after assembly is completed.

2. The expansion anchor assembly equipment according to claim 1, characterized in that: The arc circumference between the adjacent highest point and the lowest point in the pressing groove (36) is greater than or equal to the arc circumference between the adjacent highest point and the lowest point in the driving groove (31), and the vertical spacing between the adjacent highest point and the lowest point in the pressing groove (36) is greater than or equal to the vertical spacing between the adjacent highest point and the lowest point in the driving groove (31); the lifting frame (32) is arc-shaped and has a circumference greater than half the circumference of the concentric circle, so that at least two telescopic clamping columns (33) are located in the driving groove (31) during the rotation of the lifting frame (32).

3. The expansion anchor assembly equipment according to claim 1, characterized in that: The frame (1) further comprises a rotary drive device (12), a gear (13) and an annular gear ring (14); the rotary drive device (12) is mounted on the frame (1); the output end of the rotary drive device (12) is mounted with a gear (13); the annular gear ring (14) is mounted on the rotating disk (11); and the gear (13) and the annular gear ring (14) are meshingly connected.

4. The expansion anchor assembly device according to claim 1, characterized in that: The eccentric frame (21) is provided with an annular groove (211), and a roller (212) is rotatably mounted on the push frame (22), and the roller (212) is rotatably connected to the annular groove (211); the turntable (11) is provided with a radial groove (221), and the push frame (22) is slidably engaged in the radial groove (221); the turntable (11) is provided with a transverse groove (222), and the clamping frame (23) is slidably engaged in the transverse groove (222); the clamping frame (23) is inclined, and a clamping groove (231) is provided on the clamping frame (23), and clamping blocks (232) are mounted on both sides of the push frame (22), and the clamping blocks (232) are slidably engaged in the clamping groove (231).

5. The expansion anchor assembly equipment according to claim 1, characterized in that: A semi-conical frame (233) is installed on the clamping frame (23), the top end of the semi-conical frame (233) is in contact with the lower pressing groove (36), and one side of the semi-conical frame (233) is provided with a slot for inserting an anchor rod and a sleeve.

6. The expansion anchor assembly device according to claim 4, characterized in that: The clamping frame (23) comprises a V-shaped frame (234) and an arc block (235), the V-shaped frame (234) is slidably engaged in the transverse groove (222), the engaging groove (231) is arranged on a side of the V-shaped frame (234) close to the pushing frame (22), and the arc block (235) is installed on the V-shaped frame (234); the extrusion mechanism (25) comprises a slide groove (251), a slider (252) and a spring 1 (253), the slide groove (251) is arranged on a side of the V-shaped frame (234) away from the pushing frame (22) and on the fixed frame (24), the slider (252) is slidably engaged in the slide groove (251), the spring 1 (253) is installed in the slide groove (251), and the output end of the spring 1 (253) is connected to the slide groove (251).

7. The expansion anchor assembly equipment according to claim 1, characterized in that: The telescopic clamping column (33) is slidably clamped in the lifting frame (32), a second spring (321) is installed in the lifting frame (32), and the output end of the second spring (321) is connected to the telescopic clamping column (33).

8. The expansion anchor assembly device according to claim 1, characterized in that: The elastic mechanism (34) comprises a plurality of abutment shafts (341) and spring three (342); the abutment shaft (341) is slidably engaged with the lifting frame (32); the output end of the abutment shaft (341) abuts against the fixing frame (24); the output end of the spring three (342) is connected to the abutment shaft (341); and a chamfer is provided on one side of the abutment shaft (341) in the rotational forward direction; the elastic pad (37) is a smooth soft pad, and chamfers are provided at both upper and lower ends of the elastic pad (37).

9. The expansion anchor assembly device according to claim 1, characterized in that: The loading and unloading mechanism (4) comprises a vibrating unloading disc (41) and a mechanical arm. There are two vibrating unloading discs (41) arranged on one side of the rotating disc (11), one for placing nuts and the other for placing gaskets. The end of the discharge port points to the fixed frame (24). In the rotation direction of the rotating disc (11), the vibrating unloading disc (41) of the nuts is first passed through, and then the vibrating unloading disc (41) of the gasket is passed through. After the mechanical arm passes the vibrating unloading disc (41) on the rotating disc (11), it first places a sleeve from above the clamping frame (23) and the fixed frame (24) into them, and then places an anchor rod. The loading and unloading mechanism (4) further comprises an ejection cylinder (42). The ejection cylinder (42) is mounted on the eccentric frame (21). The fixed frame (24) is provided with an ejection slot (43) for the ejection cylinder to extend and pass through. The fixed frame (24) will pass through the ejection cylinder (42) only after passing through the lower pressing frame (35).

10. The expansion anchor assembly device according to claim 6, characterized in that: An arc-shaped clamping plate (241) is installed in the fixing frame (24), and the arc-shaped clamping plate (241) cooperates with the arc-shaped block (235) to clamp and fix the sleeve.

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