Hole site correcting device

Abstract

The utility model provides a hole site correcting device which comprises a controller, a correcting mechanism and an identification assembly, the device identifies the orientation of a steel pipe press-in hole through a sensing assembly electrically connected with the controller, and then a driving assembly electrically connected with the controller drives a grabbing assembly to turn over a steel pipe with the hole site not in accordance with the preset orientation. The press-in hole of each steel pipe can be corrected to the preset correct orientation before the nut is pressed, the phenomenon of nut press-fitting failure is avoided, and the nut press-fitting quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of seat processing, in particular to a hole position correction device. Background Art

[0002] The structural support parts in the seats or backs of gaming chairs on the market are usually called seat frames or back frames. The seat frames or back frames are usually frame-type structures welded from multiple steel pipes. In order to make the seat frames or back frames stably connected to the seats or backs, it is necessary to open screw holes on the steel pipes. However, the wall of the steel pipe is thin and the connection depth of the thread is insufficient. Therefore, it is usually necessary to pre-open a press hole on the outer wall of the steel pipe, and then use a nut press riveting machine to press the threaded nut into the press hole.

[0003] Before the nuts are pressed onto the steel pipes, it is necessary to ensure that the pressing holes of all the steel pipes are facing upward, so that the nuts on the pressing mechanism can be accurately aligned with the pressing holes on the steel pipes. The existing steel pipes can only be manually flipped for correction before the nut pressing process. Due to the influence of human factors, operational errors and omissions are prone to occur, resulting in the preset holes of the steel pipes not being corrected. This production method is not only inefficient, but also prone to nut pressing failure, affecting the pressing quality of the nuts on the steel pipes. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a hole position correction device, which, through the cooperation of a correction mechanism and an identification component, enables the pressing hole of each steel pipe to be corrected to a predetermined correct orientation before the nut is pressed. This avoids the phenomenon of nut pressing failure and improves the pressing quality and efficiency of the nut.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A hole position correction device, comprising:

[0007] A support assembly, used for supporting the steel pipe;

[0008] The correction mechanism is arranged above the support assembly, and includes a grabbing assembly for grabbing the steel pipe and a driving assembly connected to the grabbing assembly; the grabbing assembly can grab the steel pipe from the support assembly when the press-in hole of the steel pipe does not conform to the predetermined orientation, so that the steel pipe is separated from the support assembly; the driving assembly can drive the grabbing assembly and the steel pipe to flip after the steel pipe is separated from the support assembly, so as to correct the press-in hole of the steel pipe to the predetermined orientation;

[0009] The identification component is arranged on the support component, and includes a sensor component and an action telescopic member corresponding to the position of the press-in hole of the steel pipe, wherein the outer diameter of the action telescopic member matches the outer diameter of the press-in hole of the steel pipe, and the action telescopic member can pass through the press-in hole when extended; the sensor component can generate a corresponding sensing signal according to the extended length of the action telescopic member;

[0010] A second controller is electrically connected to the driving component and the sensing component and can receive the sensing signal;

[0011] When the press-in hole of the steel pipe on the support component is aligned with the position of the telescopic part, the telescopic part can form two different telescopic lengths when extended according to whether it passes through the press-in hole, and make the sensor component generate a corresponding sensor signal. The second controller can receive the corresponding sensing signal and determine whether to control the driving component to drive the grabbing component to correct the hole position of the steel pipe.

[0012] Preferably, the support assembly includes two horizontally opposite vertical plates, a receiving groove in the same direction as the length of the steel pipe is formed between the vertical plates, and a support rod for supporting the steel pipe is provided in the receiving groove.

[0013] Preferably, a detection cylinder is horizontally connected to the vertical plate, and the telescopic action member is a telescopic piston rod in the detection cylinder.

[0014] Preferably, the sensing component is a reed sensor; a magnetic ring that triggers the reed sensor is mounted on the telescopic part; the reed sensor has a simple structure and is easy to install. The magnetic ring can generate a corresponding magnetic field when the telescopic part is extended and retracted to form different lengths. The reed sensor can sense the magnetic field and generate different induction signals, and send the corresponding induction signals to the controller.

[0015] Preferably, a positioning and pushing mechanism is provided near one end of the accommodating groove, and the positioning and pushing mechanism includes a pushing block and a pushing power assembly. The pushing power assembly is connected to the pushing block, and can drive the pushing block to push the steel pipe in the accommodating groove along the length direction of the steel pipe through its own extension and contraction, until the pressing hole of the steel pipe is aligned with the actuating telescopic part; so that the actuating telescopic part can detect the direction of the pressing hole of the steel pipe.

[0016] Preferably, a first positioning cylinder is horizontally connected to the vertical plate and is away from the positioning pushing mechanism along the length direction of the accommodating groove. The first positioning cylinder includes a first positioning telescopic rod that can be horizontally extended into the accommodating groove. When the pressing hole of the steel pipe is aligned with the actuating telescopic part, the first positioning telescopic rod abuts against the end of the steel pipe away from the positioning pushing mechanism. Thus, a positioning reference is formed when the pressing hole of the steel pipe is aligned with the actuating telescopic part, thereby avoiding detection deviation caused by continuous sliding of the steel pipe.

[0017] Preferably, a sensing element electrically connected to the second controller is connected to the vertical plate, and the sensing element can generate a working signal after the steel pipe enters the receiving groove. After receiving the working signal, the second controller can control the pushing power assembly to drive the pushing block to push the steel pipe along the length direction of the steel pipe; the sensing element can detect whether the steel pipe has entered the receiving groove to ensure the normal operation of the hole correction device.

[0018] Preferably, a second positioning cylinder connected to the corresponding vertical plate is provided on the opposite side of the first positioning cylinder; the first positioning cylinder and the second positioning cylinder are staggered with each other along the length direction of the accommodating groove; the hole position correction device can detect and correct the pressed holes on steel pipes of different lengths, thereby improving the versatility of the device.

[0019] Preferably, the grabbing assembly is a clamping claw, and the driving assembly is a rotating cylinder connected to the upper end of the clamping claw.

[0020] The principle and beneficial effects of the utility model using the above technical solution are:

[0021] The purpose of the utility model is to provide a hole position correction device, which first identifies the direction of the steel pipe press-in hole through a sensor component electrically connected to a controller, and then drives a grasping component electrically connected to the controller to flip the steel pipe whose hole position does not conform to the predetermined direction, so that the press-in hole of each steel pipe can be corrected to the predetermined correct direction before the nut is pressed. The quality and efficiency of the nut press-fitting are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the nut pressing equipment;

[0023] Figure 2 It is an enlarged view of the components on the press-fit module;

[0024] Figure 3 This is an enlarged view of the guide column on the press-fit module passing through the steel pipe;

[0025] Figure 4 It is an enlarged view of each mechanism in the feeding module;

[0026] Figure 5 This is an enlarged view of the components on the feeding module, finishing module, and correction module;

[0027] Figure 6 It is the structural diagram of each component on the finishing module;

[0028] Figure 7 This is a structural diagram of each component on the finishing module from another perspective;

[0029] Figure 8 It is a schematic diagram of the structure of each component on the support assembly in the correction module;

[0030] Fig. 9 A structural cross-sectional view of a guide assembly;

[0031] Fig.10 It is a schematic diagram of various hole positions on the steel pipe;

[0032] Fig.11a It is a cross-sectional view of the nut in the press-fit hole before being press-fitted;

[0033] Fig.11b It is a cross-sectional view of the nut in the press-fit hole after being press-fitted;

[0034] The reference numerals of the drawings are: 1-feeding module, 2-pretreatment module, 3-pressing module, 11-guide plate, 12-pushing mechanism, 13-conveyor belt, 14-blocking mechanism, 21-finishing module, 22-adjusting module, 23-first clamping jaw, 24-driving mechanism, 25-secondary adjustment module, 26-driving assembly, 31-fixed seat, 32-driving member, 33-movable seat, 33b-limiting member, 34-elastic member, 35-connecting nut, 36-guide Toward assembly, 37-sliding column, 38-base, 40-press riveting machine, 111-guide groove, 112-first sensor, 113-second sensor, 121-horizontal support plate, 122-push drive mechanism, 123-horizontal cross plate, 124-push plate, 125-connecting plate, 126-slide rail, 141-baffle, 142-blocking cylinder, 143-sliding column, 144-adapter, 151-loading trough, 152-third sensor, 153 -connecting plate, 211-finishing drive assembly, 211a-finishing telescopic rod, 212-material collecting enclosure, 213-sliding block, 214-sliding rod, 215-sliding support seat, 216-power mechanism, 217-first positioning cylinder, 217a-second telescopic positioning assembly, 218-punching telescopic assembly, 219-accommodating groove, 219a-support rod, 219b-limiting block, 219c-vertical plate, 221-grabbing assembly, 222-pushing block, 2 23-push power assembly, 224-sensing element, 225-detection cylinder, 226-sensing assembly, 227-vertical plate, 228-second accommodating groove, 321-longitudinal telescopic rod, 331-first limiting groove, 361-guide column, 362-guide part, 363-accommodating area, 364-adjustment part, 365-model groove, 366-press-fit seat, 367-base, 391-second limiting groove, a-threaded section, b-flanged section, s-guide slope. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the description of the present invention, the term "at least one" refers to one or more than one, unless otherwise clearly defined. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0038] The specific implementation methods of the utility model are as follows:

[0039] The present embodiment provides a hole position correction device, which is installed on a nut pressing equipment. The nut pressing equipment includes a feeding module 1, a pretreatment module 2, and a pressing module 3, wherein the pretreatment module 2 includes a finishing module 21 and an adjustment module 22, and the hole position correction device is installed on the adjustment module 22; these modules are integrated into a set of standardized working equipment in the present device, thereby improving the efficiency and quality of nut pressing.

[0040] like Figure 10-11b As shown, the press-fitted nut can be an ordinary self-rivet nut or an embossed nut in this embodiment. The embossed nut in this embodiment includes a threaded section a at the upper end and a flange section b at the lower end. The preset hole of the steel pipe includes two press-in holes and a through hole located on the opposite walls of the steel pipe. The diameter of the press-in hole is larger than the through hole. When the nut is press-fitted, the flange section b of the nut is first inserted into the press-in hole, and then protrudes downward from the through hole and contacts with the workbench. After that, the press-fitting machine 40 will squeeze the nut downward, so that the flange section b explodes downward and the flange is fixed on the wall of the steel pipe.

[0041] like Figure 1-9 As shown, the equipment includes a feeding module 1, which is in the first station and includes a feeding mechanism for conveying steel pipes one by one, and the feeding mechanism is usually a belt conveyor; a pushing mechanism 12 is connected to the end of the feeding mechanism, and the pushing mechanism 12 includes a pushing drive mechanism 122 and a pushing plate 124, and the pushing drive mechanism 122 is connected to the pushing plate 124, and can drive the pushing plate 124 to push the steel pipes conveyed to the end of the feeding mechanism away from the feeding mechanism one by one, and a loading trough 151 is provided on the side of the pushing mechanism 12, wherein the loading trough 151 and the end of the feeding mechanism are provided with a connecting plate 153, and the connecting plate 153 extends obliquely downward from the end of the feeding mechanism to the loading trough 151, so as to slow down the falling speed of the steel pipe, so that the steel pipes enter the loading trough 151 one by one at a stable speed.

[0042] Furthermore, the feeding mechanism includes a conveyor belt 13 at the upper end. In order to block the steel pipes at the end of the feeding mechanism one by one, a blocking mechanism 14 is provided at the end of the conveyor belt. The blocking mechanism 14 includes a baffle 141 facing the conveying direction of the steel pipes. A blocking gap (not shown) is formed between the lower end of the baffle 141 and the conveyor belt 13. The blocking gap can allow waste on the conveyor belt 13 to pass through while blocking the steel pipes, thereby preventing the waste from being retained or accumulated at the upper end of the conveyor belt 13.

[0043] Furthermore, a material blocking cylinder 142 is connected to the upper end of the baffle 141, and the material blocking cylinder 142 can control the longitudinal movement of the baffle 141 through its own longitudinal extension and retraction, thereby changing the width of the material blocking gap; specifically, the material blocking cylinder 142 includes a longitudinally extendable piston rod, and the piston rod and the middle part of the upper end of the baffle 141 are threadedly connected through an adapter 144. Driven by the material blocking cylinder 142, the changing width of the material blocking gap can enable the baffle 141 to block steel pipes of different thickness specifications, thereby improving the versatility of the material blocking mechanism 14.

[0044] Furthermore, in order to save space, the blocking cylinder 141 and the pushing drive mechanism 122 are arranged on the same supporting carrier, and the supporting carrier is a horizontal supporting plate 121 arranged at the end of the feeding mechanism. Four legs extend downward from the four diagonal parts of the lower end of the horizontal supporting plate 121. The four legs are connected to the edge of the feeding mechanism and do not contact the upper end of the conveyor belt 13. The pushing drive mechanism 122 is a pushing cylinder connected to the upper end of the horizontal supporting plate 121. In order to make the pushing smooth, the lower end surface of the horizontal supporting plate 121 is provided with a A guide rail 126 is perpendicular to the conveying direction of the steel pipe, and a horizontal cross plate 123 is connected to the guide rail 126. The end of the horizontal cross plate 123 close to the pushing cylinder is connected to the pushing cylinder through a vertical mounting plate 125. The end of the horizontal cross plate 123 away from the pushing cylinder is vertically connected to a pushing plate 124 that does not contact the conveyor belt 13. In the vicinity of the pushing cylinder, a blocking cylinder 141 is connected to the horizontal support plate 121, and the longitudinal telescopic rod of the blocking cylinder can pass through the horizontal support plate 121, thereby connecting to the baffle 141 below.

[0045] Furthermore, in order to make the baffle 141 more stable when moving longitudinally, a sliding column 143 is provided between the upper end of the baffle 141 and the horizontal support plate 121. The upper end of the sliding column 143 passes through the horizontal support plate 121 and forms a sliding connection relative to the horizontal support plate 121. The sliding column 143 can prevent the baffle 141 from having a tendency to deflect horizontally when moving up and down, so that the baffle 141 only moves in the vertical direction.

[0046] Furthermore, in order to allow multiple steel pipes with different angles to be conveyed in the same direction on the conveyor belt 13, a guide groove 111 extending along the conveying direction of the steel pipe is provided on the feeding mechanism. The guide groove 111 is formed by two horizontally opposite guide plates 11 arranged on both sides of the conveyor belt 13. The guide groove 111 gradually narrows along the conveying direction of the steel pipe, and finally forms a narrow groove that only allows the steel pipe to pass through along its own length direction. When the steel pipe enters the guide groove 111, it will contact the guide plate 11 and be adjusted to the same direction, allowing the steel pipe to pass through the guide groove 111 along its own length direction.

[0047] Furthermore, the feeding module 1 is also provided with a first controller (not shown). In order to ensure that the steel pipe will not get stuck at the guide groove 111, it is also necessary to detect whether the steel pipe can pass through the guide groove 111. Therefore, a first sensor 112 electrically connected to the first controller is provided at the outlet position of the guide groove 111. The first sensor 112 can generate a first sensing signal when the steel pipe passes through the outlet of the guide groove 111 and send it to the first controller. The first controller can receive the first sensing signal to confirm that the steel pipe passes through the guide groove 111 smoothly; that is, when the first sensor 112 does not detect that the steel pipe passes through the outlet of the guide groove 111 smoothly, the first controller will trigger the alarm system. During this period, the entire pressing equipment will stop working until the jamming problem at the guide groove 111 is eliminated, and the entire pressing equipment will be restarted.

[0048] Furthermore, in order to ensure that the material blocking and pushing processes can proceed in an orderly manner, a second sensor 112 electrically connected to the first controller is provided at the position of the baffle 141. The second sensor 112 can generate a second sensing signal and send it to the first controller when the baffle 141 blocks the steel pipe. After receiving the second sensing signal, the first controller can send an instruction to the feeding mechanism to stop the feeding mechanism to avoid multiple steel pipes from piling up at the baffle 141; when the feeding mechanism stops working, the first controller can send an instruction to the pushing feeding mechanism 12 to push the steel pipe away from the feeding mechanism.

[0049] Furthermore, in order to prevent the push-pull feeding mechanism 12 from pushing multiple steel pipes into the loading trough 151, a third sensor 152 electrically connected to the first controller is provided in the loading trough 151. The third sensor 152 can generate a third sensing signal after the steel pipe enters the loading trough 151. After receiving the third sensing signal, the first controller can issue an instruction to the push-pull feeding mechanism 12 to stop the push-pull feeding mechanism 12 from working; that is, before the steel pipe in the loading trough 151 enters the next station, even if there is a steel pipe blocked in place at the baffle 141, the push-pull feeding mechanism 12 will not push it into the loading trough 151, so as to prevent multiple steel pipes from entering the loading trough 151 and causing loading chaos; when the steel pipe in the loading trough 151 enters the next station, the third sensing signal generated by the third sensor 152 will disappear, and at this time the push-pull feeding mechanism 12 will push the steel pipe blocked in place at the baffle 141 into the loading trough 151, so that the steel pipe loading process can proceed in an orderly manner.

[0050] like Figure 5-7 As shown, the steel pipe leaving the loading trough 151 will enter the next workstation, that is, the finishing module 21 at the second workstation. The finishing module 21 includes a bearing assembly for bearing the steel pipe, and the bearing assembly includes two relatively arranged vertical plates 219c. A placement groove 219 for placing and bearing the steel pipe is formed between the vertical plates 219c. The length direction of the placement groove 219 is the same as the length direction of the steel pipe in the placement groove 219. A support rod 219a passing through the two vertical plates 219c is provided in the placement groove 219. In order to prevent 219a from separating from the vertical plates 219c, an L-shaped limit block 219b is provided above the support rod 219a, and one of the legs of the limit block 219b faces the end of the support rod 219a to prevent the support rod 219a from sliding left and right on the vertical plates 219c.

[0051] Specifically, since the steel pipe may not be cut in place when cutting the steel pipe's press-in hole and the punch-out hole, this will cause the circular cutting waste plate that should be separated from the steel pipe at the press-in hole or the punch-out hole to be still at the corresponding hole position. In order to clean up the waste at these corresponding hole positions, a punching telescopic assembly 218 corresponding to the press-in hole position of the steel pipe is horizontally connected to the vertical plate 219c; the punching telescopic assembly 218 is also arranged at the punching hole position of the steel pipe; the punching telescopic assembly 218 is a horizontally retractable punching cylinder, and the punching telescopic assembly 218 is a horizontally retractable punching cylinder. The shrink assembly 218 can punch the press-in hole of the steel pipe through the horizontal telescopic rod that extends horizontally, thereby punching the circular plate-shaped waste that has not been separated from the steel pipe into the inner cavity of the steel pipe, making it convenient for the slide rod 214 to carry out the next step of cleaning; it should be noted that the diameter of the horizontal telescopic rod is larger than the press-in hole and the outlet hole of the steel pipe, so it does not enter the inner cavity of the steel pipe when it is extended, but only impacts the outer wall of the steel pipe at the outer end surface of the press-in hole and the outlet hole of the steel pipe, and the extended horizontal telescopic rod will clamp the steel pipe, so that the steel pipe remains fixed during the next step of precise processing.

[0052] Furthermore, in order to carry out finishing processing, the finishing module 21 also includes a slide bar 214 that matches the inner cavity contour of the steel pipe. The slide bar 214 is connected to a finishing drive assembly 211. The finishing drive assembly 211 is also a cylinder. The cylinder includes a finishing telescopic rod 211a inside itself. The head of the finishing telescopic rod 211a is connected to a slider 213, and the slider 213 is connected to the slide bar 214. Therefore, the finishing telescopic rod 211a can drive the slider 213 to drive the slide bar 214 to be inserted into the inner cavity of the steel pipe along the length direction of the steel pipe. The inserted slide bar 214 will clean out the waste plate that falls into the inner cavity of the steel pipe; in addition, along the insertion direction of the slide bar 214, the outlet of the steel pipe, that is, the end of the vertical plate 219c away from the slide bar 214 is provided with a material collection enclosure 212. After being cleaned out of the steel pipe, the waste will enter the material collection enclosure 212 to facilitate the collection and centralized treatment of the waste.

[0053] Furthermore, in order to ensure that the horizontal telescopic rod of the punching telescopic assembly 218 can be aligned with the press-in hole or the penetration hole on the steel pipe when it is extended, the finishing module 21 is provided with a sliding support seat 215 supporting the slide rod 214, and the sliding support seat 215 is connected to a power mechanism 216, which is a power cylinder connected to the sliding support seat 215. The power cylinder can drive the sliding support seat 215 to push the steel pipe end toward the sliding support seat 215 along the length direction of the steel pipe until the press-in hole of the steel pipe is aligned with the punching telescopic assembly 218. ; Therefore, the cooperation between the sliding support seat 215 and the power mechanism 216 can achieve precise positioning between the steel pipe pressing hole or the outlet hole and the punching and telescopic assembly 218, avoiding the occurrence of the punching position deviation phenomenon. In this positioning process, the sliding support seat 215 is both a support member of the slide bar 214 and an acting member for sliding positioning of the steel pipe along its own length. Driven by the power mechanism 216, the sliding support seat 21 can support the slide bar 214 while acting on the end of the steel pipe, so that the punching and telescopic assembly 218 is aligned with the pressing hole of the steel pipe.

[0054] Furthermore, in order to ensure the accuracy of the sliding positioning of the steel pipe, the finishing module 21 is also provided with a first positioning cylinder 217 on the opposite side of the sliding support seat 215, and the first positioning cylinder 217 is a positioning cylinder horizontally connected to the vertical plate 219c; when the pressing hole of the steel pipe is aligned with the punching telescopic assembly 218, the telescopic piston rod of the first positioning cylinder 217 can be extended into the placement groove 219 to form a positioning reference, and abut against the end of the steel pipe facing the first positioning cylinder 217; therefore, the first positioning cylinder 217 can align the pressing hole of the steel pipe with the punching telescopic assembly 218 and then stop the steel pipe from continuing to slide along its own length direction, thereby avoiding misalignment between the pressing hole of the steel pipe and the punching telescopic assembly 218.

[0055] Furthermore, in order to accommodate steel pipes of different lengths, a second positioning cylinder 217a connected to the corresponding vertical plate 219c is provided on the opposite side of the first positioning cylinder 217; the first positioning cylinder 217 and the second positioning cylinder 217a are staggered with each other along the length direction of the placement groove 219; when a steel pipe of another length enters the placement groove 219, the second positioning cylinder 217a can form a corresponding positioning reference according to the corresponding length, thereby increasing the versatility of the entire finishing module 21.

[0056] like Figure 5-8 As shown, the steel pipe that has completed the finishing processing will enter the adjustment module 22 at the third workstation, and the adjustment module 22 includes a support assembly for supporting the steel pipe. The structure of the support assembly is similar to that of the supporting assembly. The support assembly includes two relatively arranged vertical plates 227, and a second accommodating groove 228 for placing and supporting the steel pipe is formed between the vertical plates 227. The length direction of the second accommodating groove 228 is the same as the length direction of the steel pipe in the second accommodating groove 228. A support rod 219a passing through the two vertical plates 227 is also provided in the second accommodating groove 228. In order to prevent 219a from separating from the vertical plate 227, an L-shaped limit block 219b is provided above the support rod 219a, and one of the legs of the limit block 219b is facing the end of the support rod 219a to prevent the support rod 219a from sliding left and right on the vertical plate 227.

[0057] Furthermore, in order to adjust the hole position of the steel pipe, an adjustment mechanism is provided above the support assembly, and the adjustment mechanism includes a drive assembly 26 and a grabbing assembly 221, the drive assembly 26 is a rotating cylinder, and the grabbing assembly 221 is a clamp connected to the lower end of the rotating cylinder; the grabbing assembly 221 can pick up the steel pipe from the support assembly when the pressing hole of the steel pipe does not meet the predetermined orientation, so as to separate the steel pipe from the support assembly; the drive assembly 26 can drive the grabbing assembly 221 to flip the steel pipe after the steel pipe is separated from the support assembly, so as to adjust the pressing hole of the steel pipe to the predetermined orientation.

[0058] Furthermore, in order to detect whether the hole position of the steel pipe entering the second receiving groove 228 meets the predetermined orientation, the adjustment module 22 is also provided with a second controller electrically connected to the driving component 26, and a hole position detection component for identifying the orientation of the steel pipe press-in hole, the hole position detection component includes a detection telescopic rod corresponding to the position of the press-in hole of the steel pipe, and a sensor component 226 electrically connected to the second controller, wherein a detection cylinder 225 corresponding to the position of the press-in hole of the steel pipe is horizontally connected to the vertical plate 227, and the detection telescopic rod (not shown) is the piston rod of the detection cylinder; the detection telescopic rod matches the size of the press-in hole and can pass through the press-in hole; the detection telescopic rod can be extended to the press-in hole for hole position detection, and different extension lengths are formed according to whether it can pass through the press-in hole, and the sensor component 226 can generate a corresponding detection signal according to the extension length of the detection telescopic rod, and the second controller can receive After the corresponding detection signal is received, it is determined whether to control the driving component 26 to drive the grabbing component 221 to adjust the hole position of the steel pipe; the hole position recognition component can detect whether the direction of the press-in hole of the steel pipe is correct, and send the detection result back to the second controller through the sensor component 226, so that the second controller can perform the next step of processing on the steel pipe with the correct direction of the press-in hole, and adjust the hole position of the steel pipe with the wrong direction of the press-in hole; that is, if the press-in hole of the steel pipe meets the direction, the detection telescopic rod can be inserted into the press-in hole of the steel pipe. At this time, the extended length of the detection telescopic rod is longer, and the second controller will not control the rotating cylinder to correct the hole position of the steel pipe; if it does not meet the predetermined direction, the detection telescopic rod will contact the outlet hole whose diameter is smaller than the press-in hole, and thus cannot be inserted into the inner cavity of the steel pipe. At this time, the extended length of the detection telescopic rod is shorter, and the second controller will control the rotating cylinder to correct the hole position of the steel pipe.

[0059] Furthermore, in order to make the entire detection fast and efficient, the sensor component 226 is a common reed sensor. The cylinder body has a slot. The reed sensor is small in size, and the tubular reed sensor can be easily inserted into the slot on the outer wall of the cylinder body. Its main structure includes a sealed glass tube, in which a pair of very thin magnetic conductive metal reeds are encapsulated. The two reeds are usually processed into contact forms that can contact or separate from each other. The contact or separation between the reeds is determined by whether the magnetic field can affect the reeds. A smaller permanent magnet (not shown) is installed at the corresponding position of the detection telescopic rod. The permanent magnet is usually a magnetic ring that is sleeved on the detection telescopic rod. This magnetic ring will form a magnetic field at the corresponding position of the cylinder body. When the detection telescopic rod is extended to different lengths, the different magnetic fields generated by the magnetic ring will affect the reed sensor, thereby generating the required detection signal.

[0060] Specifically, the detection cylinder 225 is a magnetic induction cylinder, with two reed sensors and two magnetic rings. One reed sensor is inserted into the cylinder body near the tail end, and the other reed sensor is inserted into the outer wall of the cylinder body near the head end. A magnetic ring is sleeved at the tail end of the detection telescopic rod, and the other magnetic ring is sleeved on the detection telescopic rod near the head end of the cylinder. When the extended length of the detection telescopic rod is short, that is, the head end of the detection telescopic rod does not pass through the press-in hole of the steel pipe, the magnetic ring at the tail end will be close to the reed sensor, and the magnetic ring close to the head end will not trigger the reed sensor at the head end of the cylinder body; when the extended length of the detection telescopic rod is long, The head of the telescopic rod is detected through the press-in hole of the steel pipe, and the two magnetic rings on the telescopic rod will respectively trigger the two reed sensors; therefore, when both reed sensors are not triggered, the second controller will judge the signal generated by the trigger as a detection signal of unqualified hole position, so that the second controller will control the rotating cylinder to drive the clamping claw to flip the steel pipe half a circle; when both reed sensors are triggered, the second controller will judge the signal generated by the trigger as a detection signal of qualified hole position, so that the second controller will not control the rotating cylinder to drive the clamping claw to flip the steel pipe, so that the steel pipe with the correct hole position can enter the next processing process.

[0061] Furthermore, a positioning and pushing mechanism is provided near one end of the second accommodating groove 228, and the positioning and pushing mechanism includes a pushing block 222 and a pushing power assembly 223, and the pushing power assembly 223 is a telescopic cylinder; the piston rod on the pushing power assembly 223 is connected to the pushing block 222, and can drive the pushing block 222 to push the steel pipe in the second accommodating groove 228 along the length direction of the steel pipe until the steel pipe pressing hole is aligned with the actuating telescopic part, thereby facilitating the detection of the telescopic rod for the next step of hole position detection.

[0062] Furthermore, in order to perform precision positioning of the steel pipe, a first positioning cylinder 217 is also horizontally connected to the vertical plate 227 and is away from the positioning pushing mechanism along the length direction of the second receiving groove 228. The first positioning cylinder 217 includes a first positioning telescopic rod (not shown) that can be horizontally extended into the second receiving groove 228. When the steel pipe moves along its own length direction under the action of the pushing block 222 until the steel pipe pressing hole is aligned with the detection telescopic rod of the detection cylinder, the first positioning telescopic rod can extend itself into the second receiving groove 228 to abut against the end of the steel pipe, thereby forming a positioning reference to avoid detection deviation caused by continuous sliding of the steel pipe.

[0063] Furthermore, in order for the pushing power assembly 223 to drive the pushing block 222 to push the steel pipe to the predetermined detection position in time after the steel pipe enters the second receiving groove 228, the vertical plate 227 is connected with a sensing element 224 electrically connected to the second controller. The sensing element 224 is usually a photoelectric switch, which can generate a working signal after the steel pipe enters the second receiving groove 228. After receiving the corresponding working signal, the second controller can control the pushing power assembly 223 to drive the pushing block 222 to push the steel pipe along the length direction of the steel pipe.

[0064] Furthermore, in order to accommodate steel pipes of different lengths, a second positioning cylinder 217a connected to the corresponding vertical plate 219c is also provided on the opposite side of the first positioning cylinder 217 on the vertical plate 227; the first positioning cylinder 217 and the second positioning cylinder 217a are staggered with each other along the length direction of the placement groove 219; when a steel pipe of another length enters the placement groove 219, the second positioning cylinder 217a can form a corresponding positioning reference according to the corresponding length, thereby increasing the versatility of the entire adjustment module 21.

[0065] Furthermore, although the adjustment module 22 has performed hole position correction detection, in order to ensure that the hole position adjustment and detection process is foolproof, a secondary adjustment module 25 with the same structure as the adjustment module 22 is provided between the third station and the fourth station; the steel pipe that has completed the hole position adjustment on the adjustment module 22 will be moved to the secondary adjustment module 25, and the secondary adjustment module 25 can form a double detection with the adjustment module 22 to avoid the steel pipe that is missed in the detection from entering the fourth station.

[0066] like Figure 1-3As shown, the steel pipe that has completed the double inspection from the secondary adjustment press-fitting module 3 will be transported to the press-fitting module 3 at the fourth station. The press-fitting module 3 includes a workbench for supporting the steel pipe, and a conventional riveting machine 40 is arranged above the workbench. In order to avoid the steel pipe and the workbench from being "adhered" for a short time due to excessive pressure from the riveting machine 40 during press-fitting, the workbench is configured as a floating type. Specifically, the workbench includes a fixed support assembly and a floating seat 33 arranged side by side, and a driving member 32 connected to the floating seat 33. The driving member 32 is a driving cylinder arranged at the lower end of the floating seat 33, and the driving cylinder includes a longitudinal extension that can be extended up and down. The retractable rod 321 and the longitudinal telescopic rod 321 are locked at the lower end of the floating seat 33 by connecting the nut 35; the driving member 32 can drive the floating seat 33 to move longitudinally after the nut is pressed into the pressing hole of the steel pipe, so as to separate the steel pipe from the supporting mechanism; the supporting mechanism has a pressing mode and a reset mode; when the workbench is in the pressing mode, the driving member 32 can drive the floating seat 33 to move downward and then form a support for the steel pipe with the fixed support assembly; when the workbench is switched to the reset mode, the driving member 32 can drive the floating seat 33 to move upward, at which time the floating seat 33 will generate a torque on the steel pipe at the position of the fixed support assembly, so that the steel pipe is separated from the steel pipe support mechanism.

[0067] Furthermore, in order to ensure that the steel pipe can be stably supported during press-fitting, the fixed support assembly includes two fixed seats 31 arranged side by side; secondly, if a nut has been pressed into one of the two press-fit holes of the steel pipe, it is necessary to press-fit the nut into the other press-fit hole. Therefore, if there is only one floating seat 33, the entire steel pipe needs to be taken and turned over before the nut can be pressed into the next press-fit hole. Therefore, in order to speed up the press-fitting efficiency, the floating seat 33 and the driving member 32 are horizontally symmetrically distributed on both sides of the two fixed seats 31, thereby forming a double support position on both sides of the fixed support assembly; at this time, the steel pipe on the support mechanism can be directly translated along its own length direction to the other movable seat, so that the nut can be quickly pressed into the other press-fit hole.

[0068] Furthermore, in order to prevent the steel pipe from moving back and forth when it is placed on the supporting mechanism, the upper end of the fixed seat 31 and the upper end of the floating seat 33 are respectively provided with a downwardly recessed first limit groove 331 and a second limit groove 391; and to ensure that the process of placing the steel pipe into the first limit groove 331 and the second limit groove 391 can be smoother, the openings of the first limit groove 331 and the second limit groove 391 are both provided with chamfered guide slopes s, and the guide slopes s allow the steel pipe to enter the first limit groove 331 and the second limit groove 391 after touching the guide slopes s.

[0069] Furthermore, in order to enable the floating seat 33 to float up and down stably, a bottom plate 38 is provided under the floating seat 33, and a front-to-rear symmetrical sliding column 37 is connected to the bottom plate 38. The upper end of the sliding column 37 is fixed to the bottom end of the floating seat 33, and the lower end forms a sliding connection with the bottom plate 38. The sliding column 37 can play a directional guiding role when the floating seat 33 slides up and down, which is equivalent to a guide track for the up and down movement of the floating seat 33, thereby making the floating seat 33 more stable when sliding up and down.

[0070] Furthermore, in order to prevent the floating seat 33 from exerting excessive pressure on the driving cylinder when moving downward, an elastic member 34 is provided between the bottom plate 38 and the floating seat 33 to form an elastic support for the floating seat 33. The elastic member 34 is a compression spring sleeved on the sliding column 37. When the workbench is in the press-fitting mode, the driving member 32 can drive the floating seat 33 to squeeze the elastic member 34 downward, so that the elastic member 34 forms an elastic buffer for the floating seat 33; when the workbench is in the resetting mode, the elastic member 34 can reset upward and form an elastic auxiliary force for the upward movement of the floating seat 33 to share the elastic resetting force of the driving cylinder on the floating seat 33. This design kills two birds with one stone and has an exquisite structure.

[0071] Furthermore, the floating seat 33 will generate unnecessary reverse pulling force on the driving cylinder due to inertia when resetting upwards. Therefore, in order to protect the driving cylinder, a limit piece 33b is provided above the floating seat 33; when the workbench is in the press-fitting mode, the limit piece 33b is separated from the floating seat 33; when the workbench is in the resetting mode, the limit piece 33b abuts against the floating seat 33; thereby effectively blocking the inertial force of the floating seat 33 on the driving cylinder when resetting upwards, thereby protecting the driving cylinder.

[0072] Furthermore, the press-fitting module 3 also includes a guide assembly 36, which includes a mounting seat 366. A semicircular model groove 365 is provided on the upper end surface of the mounting seat 366. When the bottom of the flange end b of the nut explodes downward, the exploded part can be flanged outward under the guidance of the model groove 365, thereby being fixed on the outer wall of the steel pipe.

[0073] Furthermore, in order to allow the nut to smoothly enter the pre-set hole of the steel pipe, the guide assembly 36 also includes a vertical guide column 361 that passes upward through the pre-set hole of the steel pipe, and the vertical guide column 361 can be elastically retracted in the vertical direction. The vertical guide column 361 is located between the two fixing seats 31, and a hemispherical guide portion 362 is provided at the top of the vertical guide column 361; specifically, the vertical guide column 361 passes upward from the exit hole at the lower end of the steel pipe to the press-in hole of the steel pipe, and forms a nut accommodation area 363 between the two holes. In order to guide the nut into the accommodation area, the guide portion 362 is configured as a smooth hemispherical shape. When the nut is pressed downward and a slight position deviation occurs, the nut will first contact the guide portion 362 to be Guided into the accommodating area 363; and in order to ensure that the lower edge of the nut will not be deformed when the nut contacts the guide portion 362, a compression spring (not shown) is provided in the mounting seat 366, and the lower end of the vertical guide column 361 abuts against the compression spring and can elastically expand and contract in the vertical direction; when the nut and the guide portion 362 are squeezed, the vertical guide column 361 will retract downward to avoid hard contact with the lower edge of the nut, thereby ensuring the guiding accuracy of the nut and preventing extrusion damage to the nut during press-fitting.

[0074] Furthermore, in order to adapt to steel pipes of different thicknesses, a base 367 is provided at the lower end of the mounting seat 363. The base 367 and the lower end of the mounting portion 363 extend downward to form an exposed adjustment portion 364, and the adjustment portion 364 cooperates with the base 367 by means of a thread; when the thickness of the steel pipe changes, the adjustment portion 364 can adjust the height of the vertical guide column 361 at the upper end of the mounting seat 363 under external force rotation, to ensure that the guide portion 362 can pass upward through the press-in hole of the steel pipe, thereby completing the guiding function when the nut is pressed.

[0075] Furthermore, in order to realize the transportation of steel pipes between various workstations, the equipment also includes a first transportation component for transporting the processed steel pipes from the first workstation to the second workstation, and the first transportation component includes a first clamp 23 and a driving mechanism 24 for driving the first clamp 23 to move; the driving mechanism is usually a three-axis module, and the three-axis module can drive the components connected to itself to move freely in the horizontal and vertical directions; therefore, the driving mechanism 24 can drive the first clamp 23 to transport the steel pipe between the loading trough 151 and the finishing module 21, so that the steel pipes in the loading trough 151 are moved one by one to the finishing module 21.

[0076] Furthermore, in order to improve the handling efficiency of the steel pipe, the first clamp 23 and the adjustment mechanism are both connected to the driving mechanism 24; when the steel pipe is circulated on the workstation, the driving mechanism 24 can drive the first clamp 23 to transfer the steel pipe on the first workstation to the second workstation, and at the same time drive the clamp to transport the steel pipe on the second workstation to the third workstation; the driving mechanism 24 can realize the synchronous handling of steel pipes on different workstations by simultaneously driving the first clamp 23 and the adjustment mechanism, thereby improving the handling efficiency of the steel pipe.

[0077] Furthermore, in order to transport the steel pipe processed on the pretreatment module 2 to the pressing module 3, a conventional robotic arm (not shown) is provided between the third station and the fourth station. The robotic arm can clamp the steel pipe and place it in the first limiting groove 331 and the second limiting groove 391 of the supporting mechanism. After one group of preset holes in the steel pipe completes the nut pressing, the robotic arm can also push the steel pipe and translate the steel pipe along its own length direction, so that the other group of preset holes moves along the length direction of the steel pipe to the corresponding nut pressing position.

[0078] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A hole position correction device, characterized in that: include: A support assembly, used for supporting the steel pipe; The correction mechanism is arranged above the support assembly, and comprises a gripping assembly (221) for gripping the steel pipe, and a driving assembly (26) connected to the gripping assembly (221); the gripping assembly (221) can grip the steel pipe from the support assembly when the press-in hole of the steel pipe does not conform to a predetermined orientation, so that the steel pipe is separated from the support assembly; the driving assembly (26) can drive the gripping assembly (221) and the steel pipe to flip after the steel pipe is separated from the support assembly, so that the press-in hole of the steel pipe is corrected to the predetermined orientation; The identification component is arranged on the support component, and comprises a sensor component (226), and an action telescopic member corresponding to the position of the press-in hole of the steel pipe, wherein the outer diameter of the action telescopic member matches the outer diameter of the press-in hole of the steel pipe, and the action telescopic member can pass through the press-in hole when extended; the sensor component (226) can generate a corresponding sensing signal according to the extended length of the action telescopic member; A second controller is electrically connected to the driving component (26) and the sensing component (226) and is capable of receiving the sensing signal; When the press-in hole of the steel pipe on the support component is aligned with the position of the telescopic action component, the telescopic action component can form two different telescopic lengths when extending according to whether it passes through the press-in hole, and cause the sensor component (226) to generate a corresponding sensor signal. After receiving the corresponding sensor signal, the second controller can determine whether to control the drive component (26) to drive the grasping component (221) to correct the hole position of the steel pipe.

2. A hole position correction device according to claim 1, characterized in that: The support assembly comprises two horizontally opposed vertical plates (227), a receiving groove (228) in the same length direction as the steel pipe is formed between the vertical plates (227), and a support rod (219a) for supporting the steel pipe is provided in the receiving groove (228).

3. A hole position correction device according to claim 2, characterized in that: A detection cylinder (225) is horizontally connected to the vertical plate (227), and the actuating telescopic member is a telescopic piston rod in the detection cylinder (225).

4. A hole position correction device according to claim 1, characterized in that: The sensing component (226) is a magnetic reed sensor; a magnetic ring that triggers the magnetic reed sensor is sleeved on the action telescopic member.

5. A hole position correction device according to claim 2, characterized in that: A positioning and pushing mechanism is provided near one end of the accommodating groove (228), the positioning and pushing mechanism comprising a pushing block (222) and a pushing power assembly (223), the pushing power assembly (223) being connected to the pushing block (222) and being able to drive the pushing block (222) to push the steel pipe in the accommodating groove (228) along the length direction of the steel pipe through its own telescopic movement until the steel pipe pressing hole is aligned with the actuating telescopic member.

6. A hole position correction device according to claim 5, characterized in that: A first positioning cylinder (217) is horizontally connected to the vertical plate (227) and is away from the positioning and pushing mechanism along the length direction of the accommodating groove (228). The first positioning cylinder (217) includes a first positioning telescopic rod that can be horizontally extended into the accommodating groove (228). When the steel pipe pressing hole is aligned with the actuating telescopic member, the first positioning telescopic rod abuts against the end of the steel pipe away from the positioning and pushing mechanism.

7. A hole position correction device according to claim 5, characterized in that: The vertical plate (227) is connected to a sensing element (224) electrically connected to the second controller. The sensing element (224) can generate a working signal after the steel pipe enters the receiving groove (228). After receiving the working signal, the second controller can control the pushing power assembly (223) to drive the pushing block (222) to push the steel pipe along the length direction of the steel pipe.

8. A hole position correction device according to claim 6, characterized in that: A second positioning cylinder (217a) connected to the corresponding vertical plate (227) is provided on the opposite side of the first positioning cylinder (217); the first positioning cylinder (217) and the second positioning cylinder (217a) are staggered with each other along the length direction of the accommodating groove (228).

9. A hole position correction device according to claim 1, characterized in that: The grabbing assembly (221) is a clamping claw, and the driving assembly (26) is a rotating cylinder connected to the upper end of the clamping claw.

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