Floating type workbench

Abstract

The utility model provides a floating type workbench which comprises a fixed supporting assembly and a floating seat, the floating seat is connected with a driving piece, and the driving piece can drive the floating seat to move downwards when a nut is pressed, so that the floating seat and the fixed supporting assembly jointly support a steel pipe; after nut press fitting is completed, the driving piece can drive the floating base to move upwards after nut press fitting is completed, it is guaranteed that the nut can be normally press-fitted on the steel pipe, meanwhile, the phenomenon that the steel pipe and the workbench are bonded for a short time after nut press fitting is completed is avoided, and the nut press fitting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of seat processing, in particular to a floating workbench. 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 first open a preset hole on the outer wall of the steel pipe, and then press the threaded nut into the preset hole.

[0003] like Figure 10-11b As shown, the press-fit nut includes a threaded section at the upper end and a flange section at the lower end. The preset holes of the steel pipe include 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 of the nut is first placed through the press-in hole, and then protrudes downward through the through hole and contacts the workbench. After that, the press-fitting mechanism will squeeze the nut downward through the riveting process, so that the flange section explodes downward and the flange is fixed on the wall of the steel pipe.

[0004] When the nut is press-fitted onto the steel pipe, the pressure of the press-fitting mechanism is often used to press the nut into the preset hole of the steel pipe. However, when the press-fitting mechanism presses the nut, it also generates pressure on the contact position between the steel pipe and the workbench below the steel pipe, causing the steel pipe and the support to "bond" for a short period of time due to excessive extrusion pressure. This "bonding" phenomenon is not true bonding, but a relatively fixed state caused by huge pressure and static friction. This makes it difficult for the robot to grab the steel pipe after the nut is pressed, affecting the efficiency of the nut pressing. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a floating workbench, including a fixed support assembly and a floating seat. By connecting a driving member to the floating seat, the driving member can drive the floating seat to float longitudinally after the nut pressing is completed, so that the steel pipe can be quickly separated from the workbench, thereby improving the efficiency of nut pressing.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A floating workbench, comprising:

[0008] The steel pipe support mechanism includes a fixed support assembly and a floating seat arranged side by side;

[0009] The driving member is connected to the floating seat and can drive the floating seat to float up and down by its own expansion and contraction;

[0010] The workbench has a press-fitting mode and a reset mode; when the workbench is in the press-fitting mode, the driving member can drive the floating seat to move downward and then form support for the steel pipe with the fixed support assembly; when the workbench is switched to the reset mode, the driving member can drive the floating seat to move upward or downward to separate the steel pipe from the steel pipe support mechanism.

[0011] Preferably, the fixed support assembly includes two fixed seats arranged side by side, and the floating seat and the driving member are horizontally and symmetrically distributed on both sides of the two fixed seats, thereby forming a double floating support position on both sides of the fixed support assembly; so that the workbench can quickly press the nuts at the preset holes of the two groups of steel pipes, thereby improving the pressing efficiency.

[0012] Preferably, the upper end of the fixed seat and the upper end of the floating seat are respectively provided with a first limit groove and a second limit groove which are recessed downwards; the first limit groove and the second limit groove can limit the movement of the steel pipe in the forward and backward directions when the nut is pressed, ensuring that the nut pressing process can proceed smoothly.

[0013] Preferably, the openings of the first limiting groove and the second limiting groove are both provided with chamfered guiding slopes; the guiding slopes can contact the steel pipe by themselves, so that the steel pipe can smoothly enter the first limiting groove and the second limiting groove.

[0014] Preferably, the driving member is a driving cylinder arranged at the lower end of the floating seat.

[0015] Preferably, a base plate is provided below the floating seat, and an elastic member is provided between the base plate and the floating seat to form an elastic support for the floating seat. When the workbench is in the press-fitting mode, the driving member can drive the floating seat to squeeze the elastic member downward, so that the elastic member forms an elastic buffer for the floating seat; when the workbench is in the resetting mode, the elastic member can reset upward and form an elastic auxiliary force for the upward movement of the floating seat; the elastic member can not only form a buffer for the floating seat when it is pressed downward, but also share the force of the driving member on the floating seat that is reset upward. This design kills two birds with one stone and is an ingenious design.

[0016] Preferably, a horizontally symmetrical sliding column is provided between the bottom plate and the floating seat, the upper end of the sliding column is fixed to the bottom of the floating seat, and the lower end of the sliding column can slide longitudinally relative to the bottom plate.

[0017] Preferably, the elastic member is a compression spring sleeved on the sliding column.

[0018] Preferably, a limit member is provided above the floating seat; when the workbench is in the press-fitting mode, the limit member is separated from the floating seat; when the workbench is in the reset mode, the limit member abuts against the floating seat; the limit member can block the inertia force of the floating seat when the floating seat is reset upward, thereby preventing the floating seat from generating reverse pulling force on the driving member.

[0019] Preferably, it also includes a vertical guide column passing through the preset hole of the steel pipe, the vertical guide column is located between the two fixing seats, and a hemispherical guide part is provided at the top of the vertical guide column; the hemispherical guide part can contact with the lower end of the nut through its own smooth shape, so that the nut can smoothly enter the press-in hole of the steel pipe.

[0020] Preferably, the vertical guide column can be elastically retracted in the vertical direction to avoid deformation of the lower end of the nut after contact with the vertical guide column.

[0021] The principle and beneficial effects of the utility model using the above technical solution are:

[0022] The utility model aims to provide a floating workbench, which comprises a fixed support assembly and a floating seat. The floating seat is connected to a driving member, and the driving member can drive the floating seat to move downward when the nut is pressed, so that the floating seat and the fixed support assembly can jointly support the steel pipe; after the nut is pressed, the driving member can drive the floating seat to move upward after the nut is pressed, so that a height difference appears between the driving seat and the fixed support assembly, thereby forming a torque on the steel pipe, so that the steel pipe is separated from the supporting structure; the workbench ensures that the nut can be normally pressed on the steel pipe, and at the same time avoids the short-term "adhesion" phenomenon between the steel pipe and the workbench after the nut is pressed, thereby improving the efficiency of nut pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the nut press-fitting equipment;

[0024] Figure 2 It is an enlarged view of the components on the press-fit module;

[0025] Figure 3 This is an enlarged view of the guide column on the press-fit module passing through the steel pipe;

[0026] Figure 4 It is an enlarged view of each mechanism in the feeding module;

[0027] Figure 5 This is an enlarged view of the components on the feeding module, finishing module, and correction module;

[0028] Figure 6 It is the structural diagram of each component on the finishing module;

[0029] Figure 7 This is a structural diagram of each component on the finishing module from another perspective;

[0030] Figure 8 This is a schematic diagram of the structure of various components on the second support assembly in the correction module;

[0031] Fig. 9 A structural cross-sectional view of a guide assembly;

[0032] Fig.10 It is a schematic diagram of various hole positions on the steel pipe;

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

[0034] Fig.11b It is a cross-sectional view of the nut in the press-fit hole after being press-fitted;

[0035] 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-telescopic positioning assembly, 217a-second telescopic positioning assembly, 218-punching telescopic assembly, 219-accommodating groove, 219a-support rod, 219b-limiting block, 219c-first vertical plate, 221-pickup assembly, 222-pushing block, 223-push cylinder, 224-sensor, 225-detection cylinder, 226-sensing assembly, 227-second 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The specific implementation methods of the utility model are as follows:

[0040] The present embodiment provides a floating workbench, which is arranged on a nut pressing device, the nut pressing device 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 floating workbench is arranged in the pressing module 3; these modules are integrated into a set of standardized working equipment in the present device, thereby improving the efficiency and quality of nut pressing.

[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 5-7As 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 first support assembly for supporting the steel pipe. The first support assembly includes two relatively arranged first vertical plates 219c. A receiving groove 219 for placing and supporting the steel pipe is formed between the first vertical plates 219c. The length direction of the receiving groove 219 is the same as the length direction of the steel pipe in the receiving groove 219. A support rod 219a passing through the two first vertical plates 219c is provided in the receiving groove 219. In order to prevent 219a from separating from the first vertical plate 219c, 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 first vertical plate 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 component 218 corresponding to the press-in hole position of the steel pipe is horizontally connected to the first vertical plate 219c; the punching telescopic component 218 is also arranged at the punching hole position of the steel pipe; the punching telescopic component 218 is a horizontally retractable punching cylinder, The telescopic assembly 218 can punch the press-in hole of the steel pipe through the horizontal telescopic rod that is extended horizontally by itself; thereby, the circular plate-shaped waste that has not been separated from the steel pipe is punched into the inner cavity of the steel pipe, which is convenient for the sliding 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 when it is extended, it does not enter the inner cavity of the steel pipe, 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 first 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 telescopic positioning assembly 217 on the opposite side of the sliding support seat 215, and the telescopic positioning assembly 217 is a positioning cylinder horizontally connected to the first 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 telescopic positioning assembly 217 can be extended into the accommodating groove 219 to form a positioning reference, and abut against the end of the steel pipe facing the telescopic positioning assembly 217; therefore, the telescopic positioning assembly 217 can align the pressing hole of the steel pipe with the punching telescopic assembly 218, and then block 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 telescopic positioning assembly 217a connected to the corresponding first vertical plate 219c is provided on the opposite side of the telescopic positioning assembly 217; the telescopic positioning assembly 217 and the second telescopic positioning assembly 217a are staggered with each other along the length direction of the accommodating groove 219; when a steel pipe of another length enters the accommodating groove 219, the second telescopic positioning assembly 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 5-8As 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 second support assembly for supporting the steel pipe. The structure of the second support assembly is similar to that of the first support assembly. The second support assembly includes two second vertical plates 227 arranged opposite to each other, and a second receiving groove 228 for placing and supporting the steel pipe is formed between the second vertical plates 227. The length direction of the second receiving groove 228 is the same as the length direction of the steel pipe in the second receiving groove 228. A support rod 219a passing through the two second vertical plates 227 is also provided in the second receiving groove 228. In order to prevent 219a from separating from the second 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 second vertical plate 227.

[0057] Furthermore, in order to adjust the hole position of the steel pipe, an adjustment mechanism is provided above the second support assembly, and the adjustment mechanism includes a drive assembly 26 and a pick-up assembly 221, the drive assembly 26 is a rotating cylinder, and the pick-up assembly 221 is a second clamp connected to the lower end of the rotating cylinder; the pick-up assembly 221 can pick up the steel pipe from the support assembly when the pressing hole of the steel pipe does not conform to the predetermined orientation, so that the steel pipe is separated from the second support assembly; the drive assembly 26 can drive the pick-up assembly 221 to flip the steel pipe after the steel pipe is separated from the second 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 sensing 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 second 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 can be formed according to whether it can pass through the press-in hole, the sensing 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 receiving the corresponding detection signal, it is determined whether to control the driving component 26 to drive the picking 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 sensing component 226, so that the second controller can perform the next step of processing on the steel pipe with the correct press-in hole direction, and adjust the hole position of the steel pipe with the wrong press-in hole direction; 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 with a diameter 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 sensing 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, When the head of the telescopic rod passes through the press-in hole of the steel pipe, 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 second clamping jaw 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 second clamping jaw to flip the steel pipe, thereby allowing the steel pipe with the correct hole position to 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 cylinder 223. The pushing cylinder 223 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, the second vertical plate 227 is also horizontally connected with a telescopic positioning assembly 217 which is away from the positioning and pushing mechanism along the length direction of the second receiving groove 228. The telescopic positioning assembly 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 into the second receiving groove 228 by itself 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 cylinder 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 second vertical plate 227 is connected with a sensor 224 electrically connected to the second controller. The sensor 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 cylinder 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, the opposite side of the telescopic positioning assembly 217 on the second vertical plate 227 is also provided with a second telescopic positioning assembly 217a connected to the corresponding first vertical plate 219c; the telescopic positioning assembly 217 and the second telescopic positioning assembly 217a are staggered with each other along the length direction of the accommodating groove 219; when a steel pipe of another length enters the accommodating groove 219, the second telescopic positioning assembly 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 1-3 As 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 drive the second 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 floating workbench, characterized in that: include: The steel pipe support mechanism comprises a fixed support assembly and a floating seat (33) arranged side by side; The driving member (32) is connected to the floating seat (33) and can drive the floating seat (33) to float up and down by its own expansion and contraction; The workbench has a press-fitting mode and a reset mode; when the workbench is in the press-fitting mode, the driving member (32) can drive the floating seat (33) to move downwards and then form 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 upwards, so that the steel pipe is separated from the steel pipe support mechanism.

2. A floating workbench according to claim 1, characterized in that: The fixed support assembly comprises two fixed seats (31) arranged side by side, and the floating seat (33) and the driving member (32) are horizontally and symmetrically distributed on both sides of the two fixed seats (31), thereby forming double floating support positions on both sides of the fixed support assembly.

3. A floating workbench according to claim 2, characterized in that: The upper end of the fixed seat (31) and the upper end of the floating seat (33) are respectively provided with a first limiting groove (331) and a second limiting groove (391) which are recessed downwards.

4. A floating workbench according to claim 3, characterized in that: The openings of the first limiting groove (331) and the second limiting groove (391) are both provided with chamfered guiding inclined surfaces (s).

5. The floating workbench according to claim 1, characterized in that: The driving member (32) is a driving cylinder arranged at the lower end of the floating seat (33).

6. A floating workbench according to claim 1, characterized in that: A bottom plate (38) is provided below the floating seat (33), and an elastic member (34) is provided between the bottom plate (38) and the floating seat (33) to elastically support the floating seat (33). When the workbench is in a press-fitting mode, the driving member (32) can drive the floating seat (33) to press 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 a reset mode, the elastic member (34) can reset upward and form an elastic auxiliary force for the upward movement of the floating seat (33).

7. A floating workbench according to claim 6, characterized in that: A horizontally symmetrical sliding column (37) is provided between the bottom plate (38) and the floating seat (33). The upper end of the sliding column (37) is fixed to the bottom of the floating seat (33), and the lower end of the sliding column (37) can slide longitudinally relative to the bottom plate (38).

8. A floating workbench according to claim 7, characterized in that: The elastic member (34) is a compression spring sleeved on the sliding column (37).

9. The floating workbench according to claim 1, characterized in that: A limiting member (33b) is provided above the floating seat (33); when the workbench is in a press-fitting mode, the limiting member (33b) is separated from the floating seat (33); when the workbench is in a reset mode, the limiting member (33b) abuts against the floating seat (33).

10. A floating workbench according to claim 2, characterized in that: It also includes a vertical guide column (361) passing through the pre-set hole of the steel pipe. 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).

11. A floating workbench according to claim 10, characterized in that: The vertical guide column (361) can elastically expand and contract in the vertical direction.

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