Automatic equipment for processing nursing bed bracket

Abstract

The automatic equipment for machining the nursing bed support comprises a clamping device and a welding robot, and the clamping device comprises a clamping tool, a clamping rotating frame and a clamping rotating device which is connected with the clamping rotating frame and drives the clamping rotating frame; the clamping device comprises a cross beam clamping mechanism and a longitudinal beam clamping mechanism, and the cross beam clamping mechanism comprises two cross beam clamping modules and a cross beam clamping driving unit for driving the two cross beam clamping modules to move oppositely and oppositely. The welding robot is used in cooperation with the clamping rotating frame, automatic welding of the nursing bed support is achieved, the cross beam clamping mechanism and the longitudinal beam clamping mechanism can set different clamping positions according to the actual size of the nursing bed support, the clamping requirements of the nursing bed supports of different specifications are met, and the welding efficiency is improved. The universality of the clamping tool is effectively improved, and the production cost of the nursing bed support is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to automated equipment for processing a nursing bed bracket. Background Art

[0002] A nursing bed is a device for long-term bedridden patients to rest and adjust their movements in bed. It can be seen from the technical solutions of CN202420452316.3 and CN202421014473.2 that existing nursing beds usually consist of a nursing bed bracket, a bed support structure for lifting the nursing bed bracket off the ground, and a human body support structure for the patient to lie down and adjust the patient's posture in bed, and the nursing bed bracket is used to combine and connect the bed support structure and the human body support structure together. Fig.13 The existing nursing bed support is usually welded by two horizontal beam tubes 300 distributed on the left and right and a plurality of longitudinal beam tubes 400 arranged from left to right between the two horizontal beam tubes 300. The horizontal beam tubes 300 are usually provided with horizontal beam through holes 500 for matching bolts, so that the nursing support can be installed with bolts to connect the bed support structure, the human body support structure and other structures.

[0003] After searching, the automatic welding device for a bed frame disclosed in 202021627619.2 includes a welding robot, a robot base, a welding machine frame, a welding device and a control cabinet connected to the welding robot. The welding robot is installed on the robot base, and a welding frame is provided between every two welding robots. The welding frame includes a reversible bracket and a positioner provided at both ends of the bracket. The bracket includes a rectangular outer frame, and at least one connecting rod is provided between two opposite sides of the outer frame. A positioning piece and a quick locking device are provided on the connecting rod. This technical solution uses a welding robot and a reversible welding machine frame to realize the automation of welding. The bracket of the welding frame adopts a combination of an outer frame and a connecting rod, and a plurality of mounting holes are provided on the outer frame, so that the installation combination of the connecting rod and the outer frame is diverse. The installation position of the connecting rod can be adjusted according to the actual size of the bed frame. The positioning piece is used to position the workpiece when it is placed, and the workpiece is locked by a quick locking device. The equipment is easy to use and has strong versatility.

[0004] However, the arrangement spacing of the mounting holes is fixed. Due to the limitation of the arrangement distance of the mounting holes, since the connecting rod can only be installed on the corresponding mounting holes to achieve adjustment of the position of the corresponding mounting holes, the position of the connecting rod on the outer frame still has the disadvantage of not being able to be adjusted arbitrarily, resulting in poor installation flexibility of the connecting rod and inconvenience in adjusting the position of its quick locking device according to actual conditions. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides automated equipment for processing a nursing bed support.

[0006] The technical solution adopted by the present invention to solve its technical problem is: 1. The automated equipment for processing nursing bed brackets, comprising a clamping device and a welding robot, wherein the clamping device comprises a clamping tool, a clamping rotating frame and a clamping rotating device connected to drive the clamping rotating frame; the clamping device comprises a crossbeam clamping mechanism and a longitudinal beam clamping mechanism, the crossbeam clamping mechanism comprises two crossbeam clamping modules distributed front and back and a crossbeam clamping driving unit driving the two crossbeam clamping modules to move back and forth and towards each other, the crossbeam clamping driving unit comprises two crossbeam linkage nuts, a crossbeam bidirectional screw rotatably mounted on the clamping rotating frame and a clamping motor module mounted on the clamping rotating frame and connected to drive the crossbeam bidirectional screw to rotate, the two crossbeam linkage nuts are respectively threadedly fitted on the positive tooth section and the negative tooth section of the crossbeam bidirectional screw; the crossbeam clamping modules each comprise a crossbeam sliding seat and at least two supporting plug shafts arranged from left to right on the crossbeam sliding seat, the guide of the crossbeam sliding seat that can move back and forth is fitted on the clamping rotating frame, and the crossbeam sliding seats of the two crossbeam clamping modules are respectively connected to the two crossbeam linkage nuts.

[0007] In the present invention, the beam clamping module also includes at least two support shaft installation modules, each support shaft installation module corresponds to the installation of a support shaft; the support shaft installation module includes a support shaft installation seat whose position can be adjusted left and right on the beam sliding seat, a liftable support shaft lifting seat and a support shaft height locking bolt for fixing the height of the support shaft lifting seat, and the support shaft is fitted on the front side of the support shaft lifting seat.

[0008] In the present invention, a lifting groove is provided on the front side of the support shaft mounting seat, and two vertical locking holes arranged on the left and right sides are provided on the back side; the support shaft lifting seat at least partially extends into the lifting groove, and the screw end of the support shaft fixing bolt passes through the vertical locking hole and is threadedly engaged in the support shaft fixing screw hole of the support shaft lifting seat.

[0009] In the present invention, a first left-right adjustment rail is provided on the upper portion of each crossbeam sliding seat, and a first left-right locking groove extending from left to right is provided on the first left-right adjustment rail, and the first left-right locking groove is matched with a first position locking mechanism for installing the support shaft mounting seat.

[0010] In the present invention, the first position locking mechanism includes a position locking bolt and a position locking block with a position locking screw hole. The support shaft mounting seat is provided with a support shaft mounting hole. The screw rod of the position locking bolt passes through the support shaft mounting hole into the first left and right locking grooves and is threadedly engaged in the position locking screw hole of the position locking block.

[0011] In the present invention, a support shaft adjustment screw hole connected to the lifting slot is provided on the top of the support shaft mounting seat, and the support shaft adjustment screw hole is threadedly matched with a support shaft adjustment screw for controlling the height of the support shaft lifting seat, a support shaft adjustment hand wheel is provided on the top of the support shaft adjustment screw, and a suspension head is provided at the lower end, and a suspension matching groove matched with the cross-sectional shape of the suspension head is provided on the upper end of the support shaft lifting seat, and the suspension head is matched in the suspension matching groove.

[0012] In the present invention, a plug-in shaft buffer rubber pad is mounted on the support plug-in shaft located at the front side or the support plug-in shaft located at the rear side.

[0013] In the present invention, the longitudinal beam clamping mechanism includes a fixed longitudinal beam clamping unit and at least two movable longitudinal beam clamping units arranged from left to right, the fixed longitudinal beam clamping unit and the movable longitudinal beam clamping unit each include two longitudinal beam clamping modules arranged from front to back, the longitudinal beam clamping module includes a clamping base, a clamping positioning seat, a transverse pushing chuck, a cylinder mounting seat, and a clamping telescopic cylinder, the clamping positioning seat and the cylinder mounting seat are fixedly mounted on the top of the clamping base, the clamping positioning seat is provided with an L-shaped clamp extending from front to back; the clamping telescopic cylinder is installed on the cylinder mounting seat, and a transverse pushing mounting seat driven by the clamping telescopic cylinder to move left and right is installed on the telescopic end of the clamping telescopic cylinder, and the transverse pushing chuck is installed on the transverse pushing mounting seat.

[0014] In the present invention, the longitudinal beam clamping module further comprises an upper clamp and an upper clamp linkage mechanism which is driven by the lateral push mounting seat to drive the upper clamp to press the top of the longitudinal beam pipe.

[0015] In the present invention, the upper clamp linkage mechanism includes an upper clamp linkage seat, an upper clamp swing arm, a linkage rack, a transmission gear and a matching gear, one end of the upper clamp swing arm is rotatably mounted on the upper clamp linkage seat by a swing arm shaft; the other end of the upper clamp swing arm is provided with a chuck mounting long hole, and the upper chuck is matchably mounted on the chuck mounting long hole; the linkage rack is guidely mounted on the upper clamp linkage seat and one end of the linkage rack is fixedly connected to the transverse push mounting seat so that it moves left and right with the transverse push mounting seat; the transmission gear is rotatably mounted on the upper clamp linkage seat by a first gear shaft, and the transmission gear is meshed with the linkage rack; the matching gear is fixed on one end of the upper clamp swing arm, and one end of the upper clamp swing arm and the matching gear can rotate with the swing arm shaft as the rotation center, and the matching gear is meshed with the transmission gear for transmission.

[0016] The beneficial effects of the present invention are as follows: the present invention adopts a welding robot in conjunction with a clamping rotating frame to realize the automated welding of the nursing bed bracket, and the crossbeam clamping mechanism and the longitudinal beam clamping mechanism can set different clamping positions according to the actual size of the nursing bed bracket to meet the clamping requirements of nursing bed brackets of different specifications, effectively improving the versatility of the clamping tooling and reducing the production cost of the nursing bed bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a three-dimensional diagram of the automation equipment; Figure 2 It is a schematic diagram of the combination of the clamping rotating frame and the clamping tooling; Figure 3 is a schematic diagram of the beam clamping module; Figure 4 Schematic diagram of the combination of the support shaft installation module and the support plug shaft Figure 1 ; Figure 5 Schematic diagram of the combination of the support shaft installation module and the support plug shaft Figure 2 ; Figure 6 It is a schematic diagram of the combination of the support shaft, the support shaft lifting seat and the support mounting seat; Figure 7 It is a schematic diagram of the combination of the support shaft and the support mounting seat; Figure 8 It is a schematic diagram of the combination of the plug-in shaft synchronization part and the support synchronization groove; Fig. 9 Schematic diagram of the cooperation between the slide bar and the wavy ring groove; Fig.10 The three-dimensional clamping module for the longitudinal beam Figure 1 ; Fig.11 The three-dimensional clamping module for the longitudinal beam Figure 2 ; Fig.12 is a schematic diagram of a movable longitudinal beam clamping unit; Fig.13 This is a schematic diagram of a nursing bed bracket. DETAILED DESCRIPTION

[0018] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] Reference Figure 1-12, an automated device for processing a nursing bed support, comprising a clamping device and a welding robot 100, wherein the welding robot 100 comprises a three-axis mechanical arm and a welding gun arranged at the action output end of the three-axis mechanical arm; the clamping device comprises a clamping tool, a clamping rotating frame 1 and a clamping rotating device 2 connected to drive the clamping rotating frame 1 to rotate relative to the welding robot 100, wherein the three-axis mechanical arm and the clamping rotating device 2 are installed on the equipment chassis 200, so that the welding robot 100 and the clamping device are connected through the equipment chassis 200, thereby constraining and limiting the relative position between the welding robot 100 and the clamping device, and ensuring the stability and accuracy of the welding work. The three-axis mechanical arm and the clamping rotating device 2 are both controlled by a connection control device.

[0020] Furthermore, the clamping device includes a crossbeam clamping mechanism for clamping the crossbeam tube 300 and a longitudinal beam clamping mechanism for clamping the longitudinal beam tube 400, the crossbeam clamping mechanism includes two crossbeam clamping modules 3 distributed front and back and a crossbeam clamping drive unit 4 for driving the two crossbeam clamping modules 3 to move back and forth and toward each other, the crossbeam clamping drive unit 4 includes two crossbeam linkage nuts, a crossbeam bidirectional screw rod 41 rotatably mounted on the clamping rotating frame 1, and a clamping motor module 42 mounted on the clamping rotating frame 1 and connected to drive the crossbeam bidirectional screw rod 41 to rotate, the clamping motor module 42 is controlled by the connection control device, and the two crossbeam linkage nuts are threadedly matched respectively. It is sleeved on the positive tooth section and the negative tooth section of the bidirectional screw rod 41 of the crossbeam; the crossbeam clamping modules 3 include a crossbeam sliding seat 31 and at least two supporting plug shafts 32 arranged from left to right on the crossbeam sliding seat 31, and the crossbeam sliding seat 31 adopts a first guide rail slider assembly that can move forward and backward to cooperate with the clamping rotating frame 1, and the crossbeam sliding seats 31 of the two crossbeam clamping modules 3 are respectively connected to the two crossbeam linkage nuts, so that when the bidirectional screw rod 41 of the crossbeam is driven to rotate by the clamping motor module 42, the two crossbeam clamping modules 3 can move away from each other to release the crossbeam tube 300 and move towards each other to clamp the crossbeam tube 300, so as to adapt to nursing bed supports of different widths.

[0021] As a preferred embodiment, the beam clamping module 3 also includes at least two support shaft installation modules arranged on the beam sliding seat 31, and each support shaft installation module is correspondingly installed with a support plug shaft 32; the support shaft installation module includes a support shaft installation seat 33 whose position can be adjusted left and right on the beam sliding seat 31, a support shaft lifting seat 34 that can be raised and lowered, and a support shaft height locking bolt for fixing the height of the support shaft lifting seat 34, and the support shaft installation seat 33 is provided with a lifting groove 331 on the front side, and two vertical locking holes 332 arranged left and right on the back side; the support shaft lifting seat 34 at least partially extends into the lifting groove 331 The support shaft lifting seat 34 is provided with two rows of support shaft fixing hole arrays corresponding to two vertical locking holes 332 respectively, each support shaft fixing hole array includes at least two support shaft fixing screw holes 341 arranged from top to bottom, each support shaft fixing screw hole 341 corresponds to a support shaft height locking bolt, and the screw rod end of the support shaft fixing bolt passes through the vertical locking hole 332 and then is threadedly engaged in the support shaft fixing screw hole 341, so that after the support shaft fixing bolt is tightened, the height of the support shaft lifting seat 34 can be limited; the support plug shaft 32 is engaged on the front side of the support shaft lifting seat 34, and the position is adjusted with the lifting and lowering of the support shaft lifting seat 34. The support shaft height locking bolt is not shown in the drawings.

[0022] In this embodiment, two first left and right adjustment rails 35 are provided on the upper portion of each of the crossbeam sliding seats 31, and the first left and right adjustment rails 35 are provided with first left and right locking grooves 351 extending from left to right, and the first left and right locking grooves 351 are matched with a first position locking mechanism 300 for installing the support shaft mounting seat 33, and the first position locking mechanism 300 includes a position locking bolt 301 and a position locking block 302 with a position locking screw hole, and the support shaft mounting seat 33 is provided with a support shaft mounting hole, and the screw of the position locking bolt 301 passes through the support shaft mounting hole into the first left and right locking grooves 351 and is threadedly matched in the position locking screw hole of the position locking block 302. When the position locking bolt 301 on the support shaft mounting seat 33 is tightened, the position locking bolt 301 and the position locking block 302 cooperate to fix the position of the support shaft mounting seat 33; after the position locking bolt 301 and the position locking block 302 on the support shaft mounting seat 33 are loosened, the support shaft mounting seat 33 can be moved left and right to adjust the position, so as to adapt to the beam through holes 500 with different distances on the beam tube 300.

[0023] The top of the support shaft mounting seat 33 is provided with a support shaft adjustment screw hole connected to the lifting groove 331, and the support shaft adjustment screw hole is threadedly matched with a support shaft adjustment screw 36 for controlling the height of the support shaft lifting seat 34. The top of the support shaft adjustment screw 36 is provided with a support shaft adjustment hand wheel 361, and the lower end is provided with a hanging head 362. The cross-sectional shape of the hanging head 362 is a "convex" shape. The upper end of the support shaft lifting seat 34 is provided with a hanging matching groove 342 that is compatible with the cross-sectional shape of the hanging head 362. The hanging head 362 is matched in the hanging matching groove 342. The hanging matching groove 342 extends from the front side of the support shaft lifting seat 34 to the back side of the support shaft lifting seat 34, so as to facilitate the matching of the hanging head 362 with the hanging matching groove 342; after loosening the support shaft fixing bolt, the height position of the support shaft lifting seat 34 can be controlled by rotating the support shaft adjustment hand wheel 361.

[0024] As a preferred embodiment, the support shaft lifting seat 34 is provided with a support mounting seat 37 for driving the support plug shaft 32 to axially rotate, and one side of the support shaft lifting seat 34 is provided with a support shaft telescopic hole 343 with an axial opening; one end of the support mounting seat 37 is rotatably engaged in the support shaft telescopic hole 343, and the other end is connected and installed with the support plug shaft 32.

[0025] In this embodiment, the support mounting seat 37 includes a support mounting portion 371, a support limiting portion 372 and a support rotating portion 373 which are integrally formed and connected in sequence along the axial direction, and the diameter of the support limiting portion 372 is larger than the diameter of the support rotating portion 373, the diameter of the support mounting portion 371 and the aperture of the support shaft telescopic hole 343; a support synchronization groove 3711 is provided on the end of the support mounting portion 371 away from the support limiting portion 372, and the cross-section of the support synchronization groove 3711 is D-shaped. One end of the support plug shaft 32 is provided with a plug shaft limiting portion 321, and the plug shaft limiting portion 321 is provided with a plug shaft synchronization portion 322 that is matched and installed in the support synchronization groove 3711. The cross-section of the plug shaft synchronization portion 322 is adapted to the cross-section of the support synchronization groove 3711, and the plug shaft synchronization portion 322 is fixedly connected to the support mounting portion 371 by bolt connection. The other end of the support plug shaft 32 is provided with an insertion tapered shaft portion 323 whose diameter gradually decreases along the direction away from the plug shaft limiting portion 321, so as to facilitate the support plug shaft 32 to be inserted into the crossbeam through hole 500.

[0026] Furthermore, the support rotating part 373 is rotatably engaged in the support shaft telescopic hole 343, so that the support mounting seat 37 can rotate independently relative to the support shaft lifting seat 34; a wavy annular groove 3731 with wave crests and wave troughs is provided on the outer circumference of the support rotating part 373; the support shaft lifting seat 34 is provided with a slide bar 38 that is slidably engaged in the wavy annular groove 3731, and the slide bar 38 is a top screw that is threadedly engaged in the support shaft lifting seat screw hole 344. A push shaft spring 39 is provided in the support shaft telescopic hole 343 for pushing the support rotating part 373 to move in the direction of extending out of the support shaft telescopic hole 343. Under the elastic force of the push shaft spring 39, the support rotating part 373 extends out of the support shaft telescopic hole 343 to the longest length, and the slide bar 38 is located in a wave trough of the wavy annular groove 3731.

[0027] When clamping the crossbeam tube 300, first manually align at least two crossbeam through holes 500 of the crossbeam tube 300 with the support plug shaft 32 on the same side and insert the support plug shaft 32 into the crossbeam through hole 500 of the crossbeam tube 300, so that the crossbeam tube 300 is hung on the support plug shaft 32, and then control the two crossbeam clamping modules 3 to move toward each other, so that the crossbeam tube 300 on the two crossbeam clamping modules 3 are respectively pressed against the front and rear ends of the longitudinal beam tube 400, so that the crossbeam tube 300 is restricted from moving. At this time, the support plug shaft 32 pushes back the support mounting seat 37 and compresses the push shaft spring 39 until the crossbeam bidirectional screw rod 41 no longer rotates, and the slide rod 38 slides to the wave crest of the wavy ring groove 3731, and the two crossbeam tubes 300 are clamped. After the crossbeam tube 300 is welded and fixed, the two crossbeam clamping modules 3 move away from each other again, so that the support shaft 32 withdraws from the crossbeam through hole 500 of the crossbeam tube 300. At this time, the push shaft spring 39 resets and expands, so that the slide bar 38 slides from the crest to the other trough, thereby reversing the rotation of the support shaft 32, so that the support shaft 32 can use the other side to support the next crossbeam tube 300, avoiding the problem of downward bending deformation caused by the support shaft 32 being subjected to unilateral force for a long time.

[0028] As a preferred embodiment, a shaft buffer rubber pad 30 is mounted on the support shaft 32 located on the front side or the support shaft 32 located on the rear side. Under this structure, the support shaft 32 on one side uses the shaft limit portion 321 to contact and position the crossbeam tube 300, and the support shaft 32 on the other side uses the shaft buffer rubber pad 30 to contact and pressurize the crossbeam tube 300, which can avoid excessive squeezing of the crossbeam tube 300 and reduce the probability of deformation of the crossbeam tube 300.

[0029] As a preferred embodiment, the longitudinal beam clamping mechanism includes a fixed longitudinal beam clamping unit 5 and at least two movable longitudinal beam clamping units 6 arranged from left to right, the fixed longitudinal beam clamping unit 5 and the movable longitudinal beam clamping unit 6 each include two longitudinal beam clamping modules arranged from front to back, the longitudinal beam clamping module includes a clamping base 561, a clamping positioning seat 562, an upper clamp 563, a horizontal push clamp 564, a cylinder mounting seat 565, a clamping telescopic cylinder 566 and an upper clamping linkage mechanism, the clamping positioning seat 562 and the cylinder mounting seat 565 are both fixedly installed on the top of the clamping base 561 by bolt mounting, the clamping positioning seat 562 An L-shaped clamp 5621 extending from front to back is provided on it; the clamping and telescopic cylinder 566 is installed on the cylinder body mounting seat 565, and the clamping and telescopic cylinder 566 is controlled by the connecting control device. The clamping and telescopic cylinder 566 adopts a double-axis cylinder or an electric push rod, and preferably a double-axis cylinder; a horizontal pushing mounting seat 567 driven by it to move left and right is installed on the telescopic end of the clamping and telescopic cylinder 566, and the horizontal pushing chuck 564 is installed on the horizontal pushing mounting seat 567. The horizontal pushing chuck 564 is used to push the longitudinal beam tube 400 to the vertical surface of the L-shaped clamp 5621, so as to cooperate with the clamping of the longitudinal beam tube 400 and limit the left and right movement of the longitudinal beam tube 400.

[0030] Furthermore, the upper clamp linkage mechanism is driven by the horizontal push mounting seat 567 to drive the upper clamp 563 to clamp the longitudinal beam pipe 400. The upper clamp linkage mechanism includes an upper clamp linkage seat 568, an upper clamp swing arm 569, a linkage rack 5610, a transmission gear 5611 and a matching gear 5612. The upper clamp linkage seat 568 is composed of two upper clamp seat bodies symmetrically mounted on the cylinder mounting seat 565. The upper clamp seat body is mounted on the cylinder mounting seat 565 by bolts. One end of the upper clamp swing arm 569 is rotatably mounted on the upper clamp linkage seat 568 using a swing arm shaft, and is located between the two upper clamp seat bodies; the other end of the upper clamp swing arm 569 is provided with a chuck mounting long hole 5691, and the upper chuck 563 is cooperatively mounted on the chuck mounting long hole 5691. The upper chuck 563 is used to push the longitudinal beam tube 400 to the horizontal plane of the L-shaped clamp 5621, so as to clamp the longitudinal beam tube 400 and limit the up and down movement of the longitudinal beam tube 400. The linkage rack 5610 is guided and installed on the upper clamp linkage seat 568, which can be moved left and right. The linkage rack 5610 is located between the two upper clamp seat bodies. One end of the linkage rack 5610 is fixedly connected to the transverse push mounting seat 567, so that it moves left and right with the transverse push mounting seat 567; the transmission gear 5611 is rotatably installed on the upper clamp linkage seat 568 using a first gear shaft, and is located between the two upper clamp seat bodies. The transmission gear 5611 is meshed with the linkage rack 5610; the mating gear 5612 is fixed on one end of the upper clamp swing arm 569, and one end of the upper clamp swing arm 569 and the mating gear 5612 can rotate with the swing arm rotating shaft as the rotation center, and the mating gear 5612 is meshed with the transmission gear 5611 for transmission.

[0031] When the telescopic end of the clamping telescopic cylinder 566 is extended, the horizontal pushing mounting seat 567 drives the horizontal pushing chuck 564 to push the longitudinal beam tube 400 toward the vertical surface of the L-shaped clamp 5621, so as to cooperate with the clamping of the longitudinal beam tube 400 and limit the left and right movement of the longitudinal beam tube 400; at the same time, the horizontal pushing mounting seat 567 synchronously drives the linkage rack 5610 to move, and the linkage rack 5610 is linked to the matching gear 5612 to rotate through the transmission gear 5611, so that the matching gear 5612 synchronously drives the other end of the upper clamping swing arm 569 to rotate and swing, so that the upper chuck 563 is pressed against the top of the longitudinal beam tube 400, so as to cooperate with the clamping of the longitudinal beam tube 400 and limit the up and down movement of the longitudinal beam tube 400.

[0032] In this embodiment, an upper clamping screw 5631 is fixedly provided at one end of the upper clamping head 563, and one end of the upper clamping screw 5631 passes through the clamping head mounting long hole 5691, and the upper clamping screw 5631 is threadedly sleeved with a first nut 5632 and a second nut 5633 clamped on the upper clamping swing arm 569. After loosening the first nut 5632 and the second nut 5633, the length of the upper clamping screw 5631 passing through the clamping head mounting long hole 5691 and the position of the upper clamping screw 5631 in the clamping head mounting long hole 5691 can be adjusted to meet the clamping requirements of longitudinal beam pipes 400 of different specifications.

[0033] In this embodiment, a transverse push screw 5641 is fixedly provided at one end of the transverse push chuck 564, and a transverse push screw hole is provided on the transverse push mounting seat 567. The transverse push screw 5641 is threadedly fitted in the transverse push screw hole, and a third nut 5642 is threadedly sleeved on the transverse push screw 5641 between the transverse push chuck 564 and the transverse push mounting seat 567, thereby improving the stability of the transverse push screw 5641 being fixedly installed on the transverse push mounting seat 567; and the position of the transverse push chuck 564 on the transverse push mounting seat 567 can be realized by rotating the transverse push screw 5641. In addition, both the upper chuck 563 and the transverse push chuck 564 are rubber heads, thereby reducing the probability of pinching the longitudinal beam pipe 400.

[0034] In this embodiment, the fixed longitudinal beam clamping unit 5 and at least two movable longitudinal beam clamping units 6 are arranged in a straight line, and the fixed longitudinal beam clamping unit 5 and the movable longitudinal beam clamping unit 6 also include two front and rear adjustment beams 5613 arranged from left to right, and the clamping base 561 can be installed on the front and rear adjustment beam 5613 so that the position can be adjusted left and right. Specifically, the front and rear adjustment beam 5613 is provided with an end front and rear locking groove extending from front to rear, and the end front and rear locking groove is matched with a second position locking mechanism, and the second position locking mechanism has the same structure as the first position locking mechanism 300, and the clamping base 561 is provided with a clamping mounting hole, and the position locking block 302 of the second position locking mechanism is located in the end front and rear locking groove, and the screw rod of the position locking bolt 301 of the second position locking mechanism passes through the clamping mounting hole and enters the end front and rear locking groove, and then the thread is matched with the position locking screw hole of the position locking block 302 of the second position locking mechanism. By utilizing the above structure, the front and rear position adjustment of the longitudinal beam clamping module can be realized, so that the longitudinal beam clamping module can better clamp and fix the longitudinal beam pipe 400 .

[0035] In this embodiment, the clamping and rotating frame 1 is provided with a rotating fixed seat 11 and two second left-right adjustment beams 12 arranged from front to back, and the front-back adjustment beam 5613 of the fixed longitudinal beam clamping unit 5 is installed on the rotating fixed seat 11 by bolt connection; the front-back adjustment beam 5613 of the movable longitudinal beam clamping unit 6 is installed on the second left-right adjustment beam 12 so that the position can be adjusted left-right. Specifically, the second left-right adjustment beam 12 is provided with a transverse locking groove extending from left to right, and the transverse locking groove is matched with a third position locking mechanism, and the third position locking mechanism has the same structure as the first position locking mechanism 300, and the front-back adjustment beam 5613 is provided with a beam mounting seat 56131, and the beam mounting seat 56131 is provided with a beam mounting hole, and the position locking block 302 of the third position locking mechanism is located in the transverse locking groove, and the screw of the position locking bolt 301 of the third position locking mechanism passes through the beam mounting hole and enters the transverse locking groove, and then the screw thread is matched in the position locking screw hole of the position locking block 302 of the third position locking mechanism. By utilizing the above structure, the left and right position adjustment of the longitudinal beam clamping module can be achieved, thereby meeting the clamping requirements of the longitudinal beam pipe 400 of different nursing bed supports.

[0036] In addition, the front and rear adjustment beam 5613, the first left and right adjustment rail 35 and the second left and right adjustment beam 12 are made of aluminum profiles, and a locking protrusion is provided on the top surface of the position locking block 302. After the position locking block 302 is locked, the locking protrusion presses against the top groove surface of the first left and right locking groove 351, the top groove surface of the end front and rear locking grooves or the top groove surface of the transverse locking groove, thereby increasing the friction force and ensuring the installation stability of the support shaft mounting seat 33.

[0037] The working method of the automation equipment is as follows: Step 1: first adjust the up, down, left, and right positions of the support shaft 32 and the distance between the two beam clamping modules 3 according to the corresponding specifications and dimensions of the nursing bed bracket; Step 2: Put the longitudinal beam tube 400 into the L-shaped clamp 5621. At this time, the horizontal push clamp 564 and the upper clamp 563 do not clamp the longitudinal beam tube 400 tightly. Step 3, first manually align at least two crossbeam through holes 500 of the crossbeam tube 300 with the support plug shaft 32 on the same side and insert the support plug shaft 32 into the crossbeam through hole 500 of the crossbeam tube 300, so that the crossbeam tube 300 is hung on the support plug shaft 32, and then control the two crossbeam clamping modules 3 to move toward each other, so that the distance to be clamped between the crossbeam tubes 300 on the two crossbeam clamping modules 3 is reduced to a first preset distance, and the value of the first preset distance is 1-2 mm larger than the width of the nursing bed support; Step 4: First, use the clamping telescopic cylinder 566 to control the upper clamp 563 and the horizontal push clamp 564 to clamp the longitudinal beam tube 400, and then control the two cross beam clamping modules 3 to move toward each other, so that the distance between the cross beam tubes 300 on the two cross beam clamping modules 3 is reduced to a second preset distance, and the value of the second preset distance is equal to the width of the nursing bed bracket. At this time, the cross beam tubes 300 on the two cross beam clamping modules 3 are respectively pressed against the front and rear ends of the longitudinal beam tube 400, so that the cross beam tube 300 is restricted from moving; then control the two cross beam clamping modules 3 to continue to move toward each other by a compression distance L. At this time, the cross beam clamping modules 3. Continue to pressurize the cross beam tube 300, and at the same time, the support plug shaft 32 pushes the support mounting seat 37 in reverse, so that the support mounting seat 37 compresses the push shaft spring 39, and the slide bar 38 slides to the crest of the wavy ring groove 3731 until the cross beam bidirectional screw 41 stops rotating, and the two cross beam tubes 300 are clamped; the value of the compression distance L is the redundant distance D-preset distance N, wherein the redundant distance D is the distance between the crest of the wavy ring groove 3731 and the trough of the wavy ring groove 3731; the value of the preset distance N is 1-3mm, and the preset distance N is used to deform the plug shaft buffer rubber pad 30 to press the cross beam tube 300; Step 5, control the welding robot 100 to weld the crossbeam tube 300 and the longitudinal beam tube 400 together to form a nursing bed bracket. The two crossbeam clamping modules 3 then move back to back to allow the supporting plug shaft 32 to withdraw from the crossbeam through hole 500 of the crossbeam tube 300. At the same time, control the clamping telescopic cylinder 566 to drive the upper chuck 563 and the horizontal push chuck 564 to release the longitudinal beam tube 400. Then, manually or using a robot, remove the nursing bed bracket on the clamping tooling to complete the welding work of the entire nursing bed bracket.

[0038] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means belongs to the protection scope of the present invention.

Claims

1. An automated device for processing a nursing bed support, comprising a clamping device and a welding robot (100), wherein the clamping device comprises a clamping tool, a clamping rotating frame (1), and a clamping rotating device (2) connected to and driving the clamping rotating frame (1); the clamping device comprises a crossbeam clamping mechanism and a longitudinal beam clamping mechanism, and is characterized in that: The crossbeam clamping mechanism comprises two crossbeam clamping modules (3) arranged front to back and a crossbeam clamping drive unit (4) for driving the two crossbeam clamping modules (3) to move away from each other and towards each other, the crossbeam clamping drive unit (4) comprising two crossbeam linkage nuts, a crossbeam bidirectional screw rod (41) rotatably mounted on the clamping rotating frame (1) and a clamping motor module (42) mounted on the clamping rotating frame (1) and connected to drive the crossbeam bidirectional screw rod (41) to rotate, the two crossbeam linkage nuts are respectively threadedly fitted on the positive tooth section and the negative tooth section of the crossbeam bidirectional screw rod (41); the crossbeam clamping modules (3) each comprise a crossbeam sliding seat (31) and at least two supporting plug shafts (32) arranged from left to right on the crossbeam sliding seat (31), the guide of the crossbeam sliding seat (31) being movable front to back is fitted on the clamping rotating frame (1), and the crossbeam sliding seats (31) of the two crossbeam clamping modules (3) are respectively connected to the two crossbeam linkage nuts.

2. The automated equipment for processing nursing bed brackets according to claim 1 is characterized in that: The crossbeam clamping module (3) further comprises at least two support shaft installation modules, each support shaft installation module correspondingly installing a support plug shaft (32); the support shaft installation module comprises a support shaft installation seat (33) whose position can be adjusted left and right on the crossbeam sliding seat (31), a support shaft lifting seat (34) that can be raised and lowered, and a support shaft height locking bolt for fixing the height of the support shaft lifting seat (34), and the support plug shaft (32) is matched on the front side of the support shaft lifting seat (34).

3. The automated equipment for processing nursing bed brackets according to claim 2 is characterized in that: The front side of the support shaft mounting seat (33) is provided with a lifting groove (331), and the back side is provided with two vertical locking holes (332) arranged on the left and right; the support shaft lifting seat (34) at least partially extends into the lifting groove (331), and the screw rod end of the support shaft fixing bolt passes through the vertical locking hole (332) and is threadedly engaged in the support shaft fixing screw hole (341) of the support shaft lifting seat (34).

4. The automated equipment for processing nursing bed supports according to claim 3 is characterized in that: A first left-right adjustment rail (35) is provided on the upper portion of each crossbeam sliding seat (31), and a first left-right locking groove (351) extending from left to right is provided on the first left-right adjustment rail (35), and the first left-right locking groove (351) is matched with a first position locking mechanism (300) for installing the support shaft mounting seat (33).

5. The automated equipment for processing nursing bed supports according to claim 4 is characterized in that: The first position locking mechanism (300) comprises a position locking bolt (301) and a position locking block (302) having a position locking screw hole, the support shaft mounting seat (33) being provided with a support shaft mounting hole, the screw rod of the position locking bolt (301) passing through the support shaft mounting hole, entering into the first left and right locking grooves (351) and being threadedly engaged in the position locking screw hole of the position locking block (302).

6. The automated equipment for processing nursing bed supports according to claim 3 is characterized in that: The top of the support shaft mounting seat (33) is provided with a support shaft adjustment screw hole connected to the lifting groove (331); the support shaft adjustment screw hole is threadedly matched with a support shaft adjustment screw rod (36) for controlling the height of the support shaft lifting seat (34); the top of the support shaft adjustment screw rod (36) is provided with a support shaft adjustment hand wheel (361); the lower end of the support shaft adjustment screw rod (36) is provided with a suspension head (362); the upper end of the support shaft lifting seat (34) is provided with a suspension matching groove (342) matched with the cross-sectional shape of the suspension head (362); the suspension head (362) is matched in the suspension matching groove (342).

7. The automated equipment for processing nursing bed supports according to claim 3 is characterized in that: An insert shaft buffer rubber pad (30) is sleeved on the support insert shaft (32) located at the front side or on the support insert shaft (32) located at the rear side.

8. The automated equipment for processing nursing bed supports according to claim 1, characterized in that: The longitudinal beam clamping mechanism comprises a fixed longitudinal beam clamping unit (5) and at least two movable longitudinal beam clamping units (6) arranged from left to right, the fixed longitudinal beam clamping unit (5) and the movable longitudinal beam clamping unit (6) each comprising two longitudinal beam clamping modules arranged from front to back, the longitudinal beam clamping modules comprising a clamping base (561), a clamping positioning seat (562), a horizontal push clamping head (564), a cylinder body mounting seat (565), and a clamping telescopic cylinder (566), the clamping positioning seat ( The clamping base (561) and the cylinder mounting seat (562) are fixedly mounted on the top of the clamping base (561); the clamping positioning seat (562) is provided with an L-shaped clamping opening (5621) extending from front to rear; the clamping telescopic cylinder (566) is mounted on the cylinder mounting seat (565); the telescopic end of the clamping telescopic cylinder (566) is provided with a horizontal pushing mounting seat (567) driven by the horizontal pushing mounting seat (567) to move left and right; and the horizontal pushing chuck (564) is mounted on the horizontal pushing mounting seat (567).

9. The automated equipment for processing a nursing bed support according to claim 8, characterized in that: The longitudinal beam clamping module further comprises an upper clamp (563) and an upper clamping linkage mechanism which is driven by a transverse push mounting seat (567) to drive the upper clamp (563) to press the top of the longitudinal beam pipe (400).

10. The automated equipment for processing nursing bed supports according to claim 9, characterized in that: The upper clamp linkage mechanism comprises an upper clamp linkage seat (568), an upper clamp swing arm (569), a linkage rack (5610), a transmission gear (5611) and a matching gear (5612); one end of the upper clamp swing arm (569) is rotatably mounted on the upper clamp linkage seat (568) by means of a swing arm rotating shaft; the other end of the upper clamp swing arm (569) is provided with a chuck mounting long hole (5691), and the upper clamp (563) is matched and mounted on the chuck mounting long hole (5691); the linkage rack (5610) is guided and mounted on the upper clamp linkage seat (568) so as to be movable leftward and rightward. One end of the linkage rack (5610) is fixedly connected to the horizontal push mounting seat (567); the transmission gear (5611) is rotatably mounted on the upper clamp linkage seat (568) using a first gear shaft, and the transmission gear (5611) is meshed with the linkage rack (5610); the matching gear (5612) is fixedly mounted on one end of the upper clamp swing arm (569), and one end of the upper clamp swing arm (569) and the matching gear (5612) can rotate with the swing arm shaft as the rotation center, and the matching gear (5612) is meshed with the transmission gear (5611) for transmission.

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