A cab suspension assembly welding device

Abstract

The present invention relates to the technical field of cab suspension assembly welding, and specifically to a cab suspension assembly welding device, comprising a base, a welding device being installed on the upper side of the base through a plurality of connecting rods, two left-right symmetrically arranged clamping devices being installed on the upper side of the base, a positioning device for positioning the left and right ends of a crossbeam being installed between the two clamping devices and the welding device; the present invention is used for welding a crossbeam and a lower bracket, the present invention can accurately align the welding point of the crossbeam and the welding point of the lower bracket, thereby increasing the welding accuracy of the crossbeam and the lower bracket, and the present invention can also tightly fit the welding point of the crossbeam and the welding point of the lower bracket together, thereby increasing the welding quality of the crossbeam and the lower bracket, and at the same time the present invention can position the left and right ends of the crossbeam and synchronously adjust the welding position, thereby increasing the welding efficiency of the crossbeam and the lower bracket.

Description

Technical Field

[0001] The invention relates to the technical field of cab suspension assembly welding, in particular to cab suspension assembly welding equipment. Background Art

[0002] The cab suspension assembly is an important component installed on heavy vehicles such as trucks, tractors, and construction machinery. It is mainly used to isolate the cab from the frame, reduce the vibration and noise transmitted from the chassis to the cab, thereby improving the driver's comfort and reducing fatigue. The cab suspension assembly is mainly composed of a crossbeam, two lower brackets, and a shock-absorbing assembly. Fig.11 As shown, the crossbeam is installed above the opposite sides of the two lower brackets by welding, and there is a certain distance between the end of the crossbeam and the upper end of the lower bracket. The crossbeam is usually arranged as an arc structure, and the upper and lower ends of the lower bracket are arranged as structures inclined toward the direction close to the crossbeam, and the middle part adopts an arc transition, so as to evenly distribute the stress and improve the overall rigidity and toughness.

[0003] When welding the crossbeam and the lower bracket, a clamping device is usually used to clamp the crossbeam and the two lower brackets respectively, and the lower brackets are attached to the left and right ends of the crossbeam, and then the crossbeam and the lower brackets are manually welded together.

[0004] Currently, the following problems exist when welding the cab suspension components: 1. Since the welding points of the lower bracket and the crossbeam are usually inclined surfaces, the lower bracket and the crossbeam may not fit tightly when welding them, resulting in a gap between the lower bracket and the crossbeam, which reduces the welding quality of the lower bracket and the crossbeam; 2. When welding lower brackets and crossbeams of different specifications, the distance between the end of the crossbeam and the upper end of the lower bracket may change, which may result in the inability to accurately weld the crossbeam and the lower bracket, resulting in reduced quality of the crossbeam and the lower bracket after welding. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a cab suspension component welding device, comprising a base, a welding device is installed on the upper side of the base through a plurality of connecting rods, two left-right symmetrically arranged clamping devices are installed on the upper side of the base, and a positioning device for positioning the left and right ends of the beam is installed between the two clamping devices and the welding device; the welding device comprises a top plate fixedly installed on the upper ends of the plurality of connecting rods, a No. 1 clamping piece for clamping the fixed beam is installed in the middle of the lower end of the top plate, and two left-right symmetrically arranged welding manipulators are installed on the lower end of the top plate for sliding left and right; two left-right symmetrically arranged guide grooves are provided on the upper side of the base, and the clamping device comprises an elastic member installed in the guide groove for sliding left and right An adjustment seat of the telescopic structure, a synchronization part is commonly installed between the two adjustment seats and the base, a limit plate is fixedly installed on the upper end of the telescopic end of the adjustment seat near the middle of the base, and a double-point clamping unit for elastically clamping and fixing the lower bracket is also installed on the side of the telescopic end of the adjustment seat near the middle of the base, and a clamping unit for making the upper end of the lower bracket press against the lower side of the limit plate is connected between the double-point clamping unit and the adjustment seat; transmission plates are distributed on the opposite sides of the telescopic ends of the two adjustment seats and located below the limit plates, an active part is connected between the transmission plate and the telescopic end of the adjustment seat, a slide plate is installed on the middle parts of the opposite sides of the two transmission plates for sliding up and down, and a smoothing part is installed on the opposite sides of the two slide plates through two pressurized spring rods symmetrically arranged up and down.

[0006] Preferably, the double-point clamping unit includes a connecting plate that slides up and down in the middle of the opposite sides of the telescopic ends of the two adjustment seats. Two square spring rods symmetrically arranged up and down are installed on the opposite sides of the two connecting plates for sliding up and down through reset springs. One end of the square spring rod close to the middle of the base is hinged with a No. 2 clamping piece through a torsion spring.

[0007] Preferably, the clamping unit includes a matching plate which is slidably installed up and down on the telescopic end of the adjusting seat away from the middle of the base, a square rod is fixedly installed on the lower end of the matching plate on the side close to the middle of the base, and the end of the square rod away from the matching plate slides up and down, passes through the telescopic end of the adjusting seat and is fixedly installed with the clamping plate, and the clamping plate and the telescopic end of the adjusting seat are slidably connected up and down, and the upper end of the clamping plate is connected to the connecting plate through a clamping spring.

[0008] Preferably, a connecting groove is provided at the upper end of one side of the matching plate close to the middle of the base, and oblique grooves are provided on the front and rear inner walls of the connecting groove. The end of the oblique groove close to the middle of the base is tilted downward, and a matching rod is slidably installed in the two oblique grooves. The end of the matching rod close to the middle of the base slides left and right, passes through the telescopic end of the adjustment seat, and is fixedly connected to the transmission plate.

[0009] Preferably, the front ends of the opposite sides of the telescopic ends of the two adjustment seats are slidably installed with synchronization plates through multiple connecting springs, and locking parts are connected between the opposite sides of the two synchronization plates and their corresponding square spring rods. The locking parts are used to lock the position of the square spring rod relative to the connecting plate, the telescopic end of the square spring rod, and the hinge between the square spring rod and the second clamping piece. The upper ends of the opposite sides of the two synchronization plates are slidably installed with a yield plate, and the rear end of the yield plate is slidably installed with an L-shaped transmission rod.

[0010] Preferably, the front end of the connecting plate and the position of the corresponding square spring rod are provided with a plurality of matching holes evenly arranged up and down, the front end of the telescopic end of the square spring rod is provided with a plurality of locking holes evenly arranged left and right, and the hinge between the square spring rod and the second clamp is provided with a plurality of limiting holes evenly arranged circumferentially. The locking piece includes an integrated plate, the installation position of the integrated plate corresponds to its corresponding square spring rod, and the integrated plate is slidably installed on the side of its corresponding synchronous plate close to the middle of the base, a return spring rod is connected between the rear end of the integrated plate and the front end of the fixed end of the yield spring rod, one end of the integrated plate close to the middle of the base is set as an elastic telescopic structure, and the side of the rear end of the telescopic end of the integrated plate close to the middle of the base is rotatably connected through the elastic telescopic rod and its corresponding square spring rod and the hinge of the second clamp, and the positions of the matching holes and locking holes corresponding to the fixed end of the integrated plate and the limiting holes corresponding to the telescopic end of the integrated plate are fixedly installed with locking rods.

[0011] Preferably, a fixing sleeve is fixedly installed in the middle of one side of the slide plate close to the middle of the base, and a square-structured yield spring rod is slidably installed in the fixing sleeve, and the side of the yield spring rod away from the middle of the base is fixedly connected to an end of the transverse section of the transmission rod close to the middle of the base, and the front end of the yield spring rod close to the middle of the base is set as an inclined surface, and the front end of the smoothing member located on the lower side away from the middle of the base is fixedly installed with an L-shaped rod, which is used to cooperate with the inclined surface of the yield spring rod to drive the yield spring rod to move backward.

[0012] Preferably, a round rod is fixedly installed in the middle of the front end of the connecting plate, and a plurality of round holes evenly arranged up and down are opened at the position of the round rod at the rear end of the synchronization plate, and the round holes are used to cooperate with the round rod to lock the position of the connecting plate.

[0013] Preferably, a square groove is formed at the lower end of the limit plate, and corrugated grooves are formed on the front and rear inner walls of the square groove. A connecting rod is slidably installed on opposite sides of the two corrugated grooves. The lower end of the connecting rod slides up and down, passes through the upper end of the corresponding transmission plate, and is fixedly connected to the slide plate.

[0014] Preferably, the positioning device includes an adjustment plate distributed on the front side above the base, a No. 1 adjustment piece is connected to the middle of the adjustment plate and the middle of the base, connecting blocks are fixedly installed on the left and right ends of the rear side of the adjustment plate, the connecting blocks are connected to the telescopic ends of the corresponding adjustment seats by means of buffer springs and sliding up and down, and two transmission blocks arranged symmetrically on the left and right are installed on the middle of the rear end of the adjustment plate by means of a No. 2 synchronization piece for sliding left and right, and a fitting unit is installed on the rear end of the transmission block, and a positioning rod with an upper end set to a pointed structure is installed on the fitting unit, and the fitting unit is used to make the positioning rod fit on the lower side of the beam.

[0015] Preferably, the bonding unit includes a connecting sleeve fixedly installed at the rear end of the transmission block, a top extension spring rod is slidably installed in the connecting sleeve, the middle part of the upper end of the top extension spring rod is fixedly connected to the corresponding positioning rod, a synchronization rod vertically arranged with the top extension spring rod is distributed at the lower end of the top extension spring rod, and a No. 2 adjusting piece is connected between the lower end of the top extension spring rod and the synchronization rod, one end of the synchronization rod away from the middle of the base slides left and right to pass through the corresponding telescopic end of the adjustment seat, and the rear end of the synchronization rod close to the middle of the base is fixedly connected to the corresponding welding robot through a U-shaped rod.

[0016] The beneficial effects of the present invention are: 1. The present invention elastically clamps the lower bracket by setting a double-point clamping unit, and at the same time squeezes the upper end of the lower bracket toward the direction close to the crossbeam through a smoothing piece, so that the welding part of the lower bracket can fit closely with the welding part of the crossbeam, thereby ensuring the welding quality of the lower bracket and the crossbeam.

[0017] 2. The present invention positions the upper end of the lower bracket by setting a limit plate, and uses a clamping unit to ensure that the upper end of the lower bracket is always pressed against the lower side of the limit plate. At the same time, the end of the beam is positioned by a positioning rod. The distance between the positioning rod and the limit plate can be accurately adjusted by a No. 2 adjusting piece, thereby achieving accurate adjustment of the distance between the upper end of the lower bracket and the end of the beam, achieving accurate welding of the lower bracket and the beam, and ensuring the quality of the beam and the lower bracket after welding.

[0018] 3. When the positioning rod positions the end of the beam, the corresponding welding robot is synchronously adjusted through the U-shaped rod, so that the welding robot can be quickly aligned with the welding point of the beam and the lower bracket, thereby increasing the welding efficiency of the beam and the lower bracket.

[0019] 4. The present invention drives the slide plate to move up and down by setting a corrugated groove and a connecting rod, so that the slide plate drives the smoothing member to move up and down through the pressure spring rod, and then the smoothing member can also move up and down when squeezing the upper end of the lower bracket toward the direction close to the cross beam, ensuring that the welding point of the lower bracket and the welding point of the cross beam are tightly fitted, further ensuring the welding quality of the lower bracket and the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 It is a second three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of the welding device of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the pressing device of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the clamping device of the present invention after the adjustment seat, the matching plate and the connecting plate are partially cut away.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the partial structure of the clamping device after the limiting plate is partially removed in the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of a partial structure of the clamping device of the present invention.

[0028] Figure 8 The present invention Figure 7 Enlarged view of point A.

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the double-point clamping unit of the present invention and its corresponding locking member.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the positioning unit after a part of the adjustment plate is cut away according to the present invention.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the crossbeam and the lower bracket.

[0032] 1. Base; 11. Connecting rod; 12. Guide groove; 2. Welding device; 21. Top plate; 22. Clamping piece No. 1; 23. Welding robot; 3. Clamping device; 30. Smoothing piece; 301. L-shaped rod; 31. Adjusting seat; 311. Connecting spring; 312. Synchronizing plate; 313. Locking piece; 3131. Integrated board; 3132. Return spring rod; 3133. Elastic telescopic rod; 3134. Locking rod; 314. Round hole; 315. Give way plate; 316. Transmission rod; 32. Synchronizing piece No. 1; 33. Limiting plate; 331. Wave groove; 332. Connecting rod; 34. Double-point clamping unit; 341. Connecting plate; 342. Return spring; 343. Square spring rod; 344. Clamping piece No. 2 345, round rod; 346, locking hole; 347, limiting hole; 348, matching hole; 35, tightening unit; 351, matching plate; 352, square rod; 353, tightening plate; 354, tightening spring; 355, inclined groove; 356, matching rod; 36, transmission plate; 37, active part; 38, slide plate; 381, fixing sleeve; 382, ​​giving way spring rod; 39, pressure spring rod; 4, positioning device; 41, adjustment plate; 42, No. 1 adjustment piece; 43, connecting block; 44, buffer spring; 45, No. 2 synchronization piece; 46, transmission block; 47, fitting unit; 471, connecting sleeve; 472, top extension spring rod; 473, synchronization rod; 474, No. 2 adjustment piece; 475, U-shaped rod; 48, positioning rod. DETAILED DESCRIPTION

[0033] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0034] See also Figure 1 and Fig.11 A cab suspension assembly welding device comprises a base 1, a welding device 2 is installed on the upper side of the base 1 through a plurality of connecting rods 11, two left-right symmetrically arranged clamping devices 3 are installed on the upper side of the base 1, and a positioning device 4 for positioning the left and right ends of the beam is installed between the two clamping devices 3 and the welding device 2.

[0035] The present invention is used for welding a crossbeam and a lower bracket. The present invention increases the welding accuracy of the crossbeam and the lower bracket by accurately aligning the welding point of the crossbeam and the welding point of the lower bracket. The present invention can also make the welding point of the crossbeam and the welding point of the lower bracket close together, thereby improving the welding quality of the crossbeam and the lower bracket. At the same time, the present invention can also position the left and right ends of the crossbeam and synchronously adjust the welding position, thereby increasing the welding efficiency of the crossbeam and the lower bracket.

[0036] Specifically, firstly, the crossbeam is placed in the welding device 2, and the welding device 2 is controlled to pre-clamp the crossbeam. At the same time, the two lower brackets are respectively placed in the two pressing devices 3, and the pressing devices 3 can position the upper ends of the lower brackets. The lower brackets are clamped by the pressing devices 3 and the two lower brackets are driven to approach each other, so that the lower brackets are initially attached to the left and right ends of the crossbeam. Then, the welding device 2 is controlled to clamp and fix the crossbeam, and then the positioning device 4 is controlled to position the left and right ends of the crossbeam. According to the distance between the upper end of the lower bracket and the end of the crossbeam, the positioning device 4 is controlled to The position of the upper end of the lower bracket is precisely adjusted so that the welding point of the beam and the welding point of the lower bracket are precisely aligned. At the same time, the positioning device 4 can synchronously adjust the welding position of the welding device 2, and start the clamping device 3 to make the welding point of the lower bracket and the welding point of the beam close together. Finally, the welding device 2 is started to weld the beam and the lower bracket together to complete the welding operation. After the welding is completed, the welding device 2 is controlled to release the beam, and the clamping device 3 is controlled to release the lower bracket and return to the initial position, so that the welded beam and the lower bracket can be taken out.

[0037] See also Figure 1-Figure 3 The welding device 2 includes a top plate 21 fixedly mounted on the upper ends of the plurality of connecting rods 11, a clamping member 22 for clamping a fixed crossbeam is mounted in the middle of the lower end of the top plate 21, and two left-right symmetrically arranged welding manipulators 23 are mounted on the lower end of the top plate 21 for sliding left and right.

[0038] It should be noted that the welding robot 23 in the present invention adopts the existing technology, which is composed of a mechanical arm, a welding gun, a control system and a slide, wherein the slide is installed at the lower end of the top plate 21 for left and right sliding, and the control system is arranged in the slide. When it is necessary to weld the lower bracket and the cross beam, the control system is started to drive the welding gun through the mechanical arm to weld the lower bracket and the cross beam together.

[0039] It should be noted that the No. 1 clamping member 22 in the present invention includes a fixed block fixedly installed in the middle of the lower end of the top plate 21, and two No. 1 clamping plates with L-shaped structures arranged symmetrically front and back are slidably installed at the lower end of the fixed block. A No. 3 synchronous screw is commonly installed between the two No. 1 clamping plates and the fixed block. The No. 3 synchronous screw is provided with two threaded sections arranged front and back and with opposite thread directions. The two No. 1 clamping plates are connected to the corresponding threaded sections on the No. 3 synchronous screw by threaded cooperation, and the No. 3 synchronous screw is rotatably connected to the fixed block. By screwing the No. 3 synchronous screw, the two No. 1 clamping plates are driven to move synchronously, so that the two No. 1 clamping plates can clamp the beam. The No. 1 clamping plate is set to an L-shaped structure, so that the No. 1 clamping plate can pre-clamp the beam first, and then clamp and fix the beam after the middle part of the beam and the No. 1 clamping plate are centered and aligned.

[0040] The welding device 2 is used to weld the crossbeam and the lower bracket together; specifically, the crossbeam is first placed in the No. 1 clamping piece 22, and the No. 1 clamping piece 22 pre-clamps the crossbeam. When the clamping device 3 drives the two lower brackets to approach each other and fit on the left and right ends of the crossbeam, the middle part of the crossbeam and the No. 1 clamping piece 22 are centered and aligned, and then the No. 1 clamping piece 22 is controlled to clamp and fix the crossbeam. When it is necessary to weld the crossbeam and the lower bracket, the welding robot 23 is controlled to weld the crossbeam and the lower bracket together. After the welding is completed, the No. 1 clamping piece 22 is controlled to release the crossbeam, so that the welded crossbeam and the lower bracket can be taken out.

[0041] See also Figure 1 , Figure 2 and Figure 4 Two guide grooves 12 are symmetrically arranged on the upper side of the base 1. The clamping device 3 includes an adjustment seat 31 of an elastic telescopic structure slidably installed in the guide groove 12. A first synchronization member 32 is installed between the two adjustment seats 31 and the base 1. A limiting plate 33 is fixedly installed on the upper end of the telescopic end of the adjustment seat 31 close to the middle of the base 1. A double-point clamping unit 34 for elastically clamping and fixing the lower bracket is also installed on the side of the telescopic end of the adjustment seat 31 close to the middle of the base 1, which is located below the limiting plate 33. A clamping unit 35 for making the upper end of the lower bracket press against the lower side of the limiting plate 33 is connected between the double-point clamping unit 34 and the adjustment seat 31.

[0042] See also Figure 4-Figure 6 Transmission plates 36 are distributed on the opposite sides of the telescopic ends of the two adjustment seats 31 and below the limit plate 33. An active part 37 is connected between the transmission plate 36 and the telescopic end of the adjustment seat 31. Slide plates 38 are installed in the middle of the opposite sides of the two transmission plates 36 for sliding up and down. Smoothing parts 30 are installed on the opposite sides of the two slide plates 38 through two pressure spring rods 39 symmetrically arranged up and down.

[0043] It should be noted that the No. 1 synchronous member 32 in the present invention includes a No. 1 synchronous screw, which is provided with two threaded segments arranged left and right and with opposite thread directions, wherein the two adjustment seats 31 are connected to the corresponding threaded segments on the No. 1 synchronous screw by threaded cooperation, and the No. 1 synchronous screw is rotatably connected to the base 1, and the two adjustment seats 31 are synchronously position-adjusted by rotating the No. 1 synchronous screw. The active member 37 in the present invention is an electric push rod, wherein the fixed end of the electric push rod is fixedly installed in a preset circular groove on the upper end of the telescopic end of the adjustment seat 31 near the middle of the base 1, and the telescopic end of the electric push rod is fixedly connected to the transmission plate 36. The smoothing member 30 in the present invention includes a U-shaped frame fixedly installed on the pressure spring rod 39 near one end of the middle of the base 1, and a smoothing roller is rotatably installed in the U-shaped frame.

[0044] The clamping device 3 is used to clamp and fix the lower bracket, and to make the welding part of the lower bracket and the welding part of the cross beam close together; specifically, firstly, the lower bracket is placed in the double-point clamping unit 34, and the upper end of the lower bracket is fitted with the lower side of the limit plate 33, and then the double-point clamping unit 34 is controlled to elastically clamp the lower bracket, and then the first synchronization member 32 is controlled to drive the two adjustment seats 31 to approach each other, so that the two double-point clamping units 34 drive their corresponding lower brackets to approach each other and fit on the left and right ends of the cross beam, and finally the two active members 37 are controlled to drive the transmission plate 36 to approach each other, so that the transmission plate 36 passes through the slide plate 3 8 and the pressure spring rod 39 drive the two smoothing members 30 to move in the direction close to the lower bracket, and when the smoothing members 30 are fitted on the upper ends of the two lower brackets on the opposite sides, the pressure spring rod 39 is continuously compressed, so that the smoothing members 30 are pressed against the upper ends of the lower brackets in the direction close to the cross beam under the elastic action of the pressure spring rod 39, thereby making the welding parts of the lower brackets and the welding parts of the cross beam close together, and at the same time, the tightening unit 35 can make the upper ends of the lower brackets press against the lower side of the limit plate 33 to achieve the positioning of the upper ends of the lower brackets. When the welding of the cross beam and the lower bracket is completed, the control active member 37 drives the smoothing member 30 to return to the initial position.

[0045] See also Figure 6 A square groove is formed at the lower end of the limit plate 33, and a corrugated groove 331 is formed on the front and rear inner walls of the square groove. A connecting rod 332 is slidably installed on the opposite sides of the two corrugated grooves 331. The lower end of the connecting rod 332 slides up and down, passes through the upper end of the corresponding transmission plate 36, and is fixedly connected to the slide plate 38.

[0046] When the transmission plate 36 finally drives the smoothing member 30 to move toward the direction close to the lower bracket through the slide plate 38, the transmission plate 36 drives the connecting rod 332 to move synchronously, and with the cooperation of the connecting rod 332 and the corrugated groove 331, the slide plate 38 can move up and down synchronously, and then the slide plate 38 drives the smoothing member 30 to move up and down through the pressure spring rod 39, so that the smoothing roller of the smoothing member 30 squeezes the lower bracket toward the middle of the base 1 and smoothes the lower bracket up and down, further ensuring that the welding points of the lower bracket and the welding points of the crossbeam are tightly attached to each other.

[0047] See also Figure 4 and Figure 5 The double-point clamping unit 34 includes a connecting plate 341 that slides up and down in the middle of the opposite sides of the telescopic ends of the two adjustment seats 31. Two square spring rods 343 symmetrically arranged up and down are installed on the opposite sides of the two connecting plates 341 through a reset spring 342 to slide up and down. One end of the square spring rod 343 close to the middle of the base 1 is hinged with a second clamping piece 344 through a torsion spring.

[0048] It should be noted that, in the present invention, the No. 2 clamping member 344 includes a rotating plate, and one end of the rotating plate close to the middle of the base 1 is slidably installed with two No. 2 clamping plates arranged symmetrically front and back, and a No. 4 synchronous screw is commonly installed between the two No. 2 clamping plates and the rotating plate. The No. 4 synchronous screw has the same structure as the No. 3 synchronous screw, wherein the two No. 2 clamping plates are connected to the corresponding threaded segments on the No. 4 synchronous screw by threaded cooperation, and the No. 4 synchronous screw and the rotating plate are rotatably connected, and the two No. 2 clamping plates are driven closer to each other by screwing the No. 4 synchronous screw, thereby realizing the clamping and fixation of the lower bracket.

[0049] The double-point clamping unit 34 uses an elastic method to perform double-point clamping on the lower bracket; specifically, first place the lower bracket in the second clamping piece 344, and when the upper end of the lower bracket is pressed against the lower side of the limit plate 33, the second clamping piece 344 is controlled to clamp and fix the lower bracket, and when the smoothing piece 30 presses the upper end of the lower bracket toward the direction close to the cross beam, if the welding part of the lower bracket and the welding part of the cross beam are not tightly fitted, the lower bracket can be rotated based on the fitting part between the lower bracket and the cross beam, so that the welding part of the lower bracket and the cross beam are tightly fitted. The welding joints are tightly fitted, as the square spring rod 343 is connected to the connecting plate 341 through the reset spring 342, the square spring rod 343 and the No. 2 clamp 344 are hinged, and under the elastic action of the square spring rod 343, the lower bracket can move left and right at will, thereby ensuring that the welding joint of the lower bracket can be tightly fitted with the welding joint of the beam under the pressurization of the smoothing piece 30. After welding is completed, the No. 2 clamp 344 is controlled to loosen the lower bracket, so that the welded beam and the lower bracket can be taken out.

[0050] See also Figure 4 and Figure 5 The clamping unit 35 includes a matching plate 351 which is slidably installed up and down on the telescopic end of the adjusting seat 31 away from the middle of the base 1. A square rod 352 is fixedly installed on the lower end of the matching plate 351 on the side close to the middle of the base 1. The end of the square rod 352 away from the matching plate 351 slides up and down through the telescopic end of the adjusting seat 31 and is fixedly installed with a clamping plate 353. The clamping plate 353 is slidably connected to the telescopic end of the adjusting seat 31 up and down, and the upper end of the clamping plate 353 is connected to the connecting plate 341 through a clamping spring 354.

[0051] A connecting groove is provided at the upper end of one side of the matching plate 351 close to the middle of the base 1, and inclined grooves 355 are provided on the front and rear inner walls of the connecting groove. The end of the inclined groove 355 close to the middle of the base 1 is tilted downward, and a matching rod 356 is slidably installed in the two inclined grooves 355. The end of the matching rod 356 close to the middle of the base 1 slides left and right to penetrate the telescopic end of the adjustment seat 31 and is fixedly connected to the transmission plate 36.

[0052] The clamping unit 35 is used to make the upper end of the lower bracket always press against the lower side of the limit plate 33; specifically, when the control active member 37 drives the transmission plate 36 to move toward the middle of the base 1, the transmission plate 36 drives the matching rod 356 to move toward the middle of the base 1, and the matching plate 351 moves upward under the cooperation of the matching rod 356 and the inclined groove 355, and the matching plate 351 drives the clamping plate 353 to move upward through the square rod 352, so that the clamping plate 353 drives the connecting plate 341 to move upward through the clamping spring 354, and under the action of the clamping spring 354, the connecting plate 341 makes its corresponding upper end of the lower bracket always press against the lower side of the limit plate 33 through the No. 2 clamping member 344.

[0053] See also Figure 6-Figure 9 The front ends of the opposite sides of the telescopic ends of the two adjustment seats 31 are both slidably installed with synchronous plates 312 through multiple connecting springs 311. The opposite sides of the two synchronous plates 312 are connected with locking pieces 313 between the corresponding square spring rods 343. The locking pieces 313 are used to lock the position of the square spring rods 343 relative to the connecting plates 341, the telescopic ends of the square spring rods 343, and the hinges between the square spring rods 343 and the second clamping piece 344. The upper ends of the opposite sides of the two synchronous plates 312 are both slidably installed with a clearance plate 315, and the rear end of the clearance plate 315 is slidably installed with an L-shaped transmission rod 316; the middle part of the side of the slide plate 38 close to the middle part of the base 1 is fixedly installed with a fixed sleeve 381, which slides back and forth in the fixed sleeve 381 A square-structured yielding spring rod 382 is installed, and the side of the yielding spring rod 382 away from the middle of the base 1 is fixedly connected to an end of the lateral section of the transmission rod 316 close to the middle of the base 1, and the side of the front end of the yielding spring rod 382 close to the middle of the base 1 is set as an inclined surface, and the front end of the side of the smoothing member 30 located on the lower side away from the middle of the base 1 is fixedly installed with an L-shaped rod 301, and the L-shaped rod 301 is used to cooperate with the inclined surface of the yielding spring rod 382 to drive the yielding spring rod 382 to move backward; a round rod 345 is fixedly installed at the middle of the front end of the connecting plate 341, and a plurality of circular holes 314 evenly arranged up and down are opened at the rear end of the synchronization plate 312 corresponding to the position of the round rod 345, and the circular holes 314 are used to cooperate with the round rod 345 to lock the position of the connecting plate 341.

[0054] It should be noted that the L-shaped rod 301 is fixedly mounted on the front end of the U-shaped frame of the corresponding smoothing member 30 located at the lower side away from the middle of the base 1 .

[0055] See also Fig. 9It should be noted that the front end of the connecting plate 341 of the present invention corresponds to the position of the square spring rod 343 and is provided with a plurality of matching holes 348 evenly arranged up and down, the front end of the telescopic end of the square spring rod 343 is provided with a plurality of locking holes 346 evenly arranged left and right, and the hinge between the square spring rod 343 and the second clamping piece 344 is provided with a plurality of limiting holes 347 evenly arranged circumferentially. The locking piece 313 of the present invention includes an integrated plate 3131, the installation position of the integrated plate 3131 corresponds to the corresponding square spring rod 343, and the integrated plate 3131 is slidably installed on its corresponding synchronous plate 312 up and down. On one side close to the middle of the base 1, a return spring rod 3132 is connected between the rear end of the integrated board 3131 and the front end of the fixed end of the yield spring rod 343. One end of the integrated board 3131 close to the middle of the base 1 is arranged as an elastic telescopic structure. The rear end of the telescopic end of the integrated board 3131 is rotatably connected to one side of the middle of the base 1 through the elastic telescopic rod 3133 and its corresponding square spring rod 343 and the hinge of the second clamp 344. The locking rod 3134 is fixedly installed at the corresponding matching hole 348 and locking hole 346 of the fixed end of the integrated board 3131 and the corresponding limit hole 347 of the telescopic end of the integrated board 3131.

[0056] When the smoothing member 30 is fitted to the side of the lower bracket away from the cross beam so that the pressure spring rod 39 is continuously compressed, the smoothing member 30 located on the lower side stops the horizontal movement of the corresponding L-shaped rod 301 under the action of the lower bracket, and at the same time, the slide plate 38 drives its corresponding yielding spring rod 382 to continue to move toward the middle of the base 1 through the fixing sleeve 381. When the pressure spring rod 39 located on the lower side is compressed to a certain extent, the yielding spring rod 382 moves to the corresponding position of the vertical section of the L-shaped rod 301. Then, when the slide plate 38 continues to move toward the middle of the base 1, the inclined surface of the yielding spring rod 382 can cooperate with the vertical section of the L-shaped rod 301 to drive the yielding spring rod 382 to move backward, so that the yielding spring rod 38 The transmission rod 316 and the clearance plate 315 drive the synchronous plate 312 to move backward and compress the connecting spring 311, so that the synchronous plate 312 drives the locking rod 3134 to move backward through the integrated plate 3131, so that the locking rod 3134 is inserted into the corresponding matching hole 348, the locking hole 346 and the limiting hole 347, thereby realizing the locking of the position of the square spring rod 343 relative to the connecting plate 341, the telescopic end of the square spring rod 343 and the hinge of the square spring rod 343 and the second clamping piece 344, and the elastic telescopic rod 3133 can drive the telescopic end of the integrated plate 3131 and the square spring rod 343 to move synchronously, so that the limiting hole 347 can always be aligned with the corresponding locking rod 3134.

[0057] When the control active member 37 finally drives the smoothing member 30 to return to the initial position, the L-shaped rod 301 is separated from the yield spring rod 382 under the action of the pressure spring rod 39, and under the elastic action of the yield spring rod 382, ​​and at the same time under the action of the return spring rod 3132 and the connecting spring 311, the synchronous plate 312 drives the locking rod 3134 to return to the initial position through the integrated plate 3131, and then contacts the position of the square spring rod 343 relative to the connecting plate 341, the telescopic end of the square spring rod 343 and the locking of the hinge between the square spring rod 343 and the second clamp 344.

[0058] See also Figure 1 , Figure 2 and Fig.10 The positioning device 4 includes an adjustment plate 41 distributed on the front side above the base 1, a No. 1 adjustment member 42 is connected between the middle of the adjustment plate 41 and the middle of the base 1, and connecting blocks 43 are fixedly installed at both ends of the left and right sides of the rear side of the adjustment plate 41. The connecting blocks 43 are connected to the telescopic ends of the corresponding adjustment seat 31 by a buffer spring 44 and slide up and down. The middle of the rear end of the adjustment plate 41 is slidably installed with two transmission blocks 46 arranged symmetrically on the left and right through a No. 2 synchronization member 45. The rear ends of the transmission blocks 46 are all installed with fitting units 47, and the fitting units 47 are installed with positioning rods 48 with a pointed structure at the upper end. The fitting units 47 are used to make the positioning rods 48 fit on the lower side of the beam; the fitting unit 4 7 comprises a connecting sleeve 471 fixedly mounted on the rear end of the transmission block 46, a top extension spring rod 472 is slidably mounted in the connecting sleeve 471, the middle part of the upper end of the top extension spring rod 472 is fixedly connected with the corresponding positioning rod 48, a synchronization rod 473 arranged vertically with the top extension spring rod 472 is distributed at the lower end of the top extension spring rod 472, and a second adjustment member 474 is connected between the lower end of the top extension spring rod 472 and the synchronization rod 473, one end of the synchronization rod 473 away from the middle part of the base 1 slides left and right to penetrate the corresponding telescopic end of the adjustment seat 31, and the rear end of the synchronization rod 473 close to the middle part of the base 1 is fixedly connected with the corresponding welding robot 23 through the U-shaped rod 475.

[0059] It should be noted that the No. 1 adjusting member 42 in the present invention includes a No. 1 adjusting screw and a guide rod of a telescopic structure. The No. 1 adjusting screw is connected to the adjusting plate 41 by threaded cooperation. The lower end of the No. 1 adjusting screw is rotatably connected to the base 1. The guide rod is fixedly installed on the left and right sides of the lower end of the base 1, and the guide rod is fixedly connected to the adjusting plate 41. The position of the adjusting plate 41 is adjusted by screwing the No. 1 adjusting screw, and the adjusting plate 41 can move up and down under the action of the guide rod. The No. 2 adjusting member 474 in the present invention includes a No. 2 synchronous screw. The No. 2 synchronous screw is connected to the synchronous rod 473 by threaded cooperation. The upper end of the No. 2 adjusting member 474 is rotatably connected to the lower end of the top spring rod 472. The distance between the positioning rod 48 and the limit plate 33 is adjusted by screwing the No. 2 synchronous screw.

[0060] It should be noted that the No. 2 synchronous component 45 in the present invention includes a No. 2 synchronous screw, which has the same structure as the No. 1 synchronous screw. The two transmission blocks 46 are connected to the corresponding threaded segments on the No. 2 synchronous screw by threaded cooperation, and the No. 2 synchronous screw is rotatably connected to the adjustment plate 41. The left end of the No. 2 synchronous screw is connected to the motor output shaft fixedly installed in the adjustment plate 41. By starting the motor to drive the No. 2 synchronous screw to rotate, the synchronous position adjustment of the transmission block 46 is realized. The U-shaped rod 475 in the present invention is fixedly connected to the slide seat of the corresponding welding robot 23.

[0061] The positioning device 4 is used to position the left and right ends of the beam, and the fitting unit 47 is used to make the upper end of the positioning rod 48 always fit the lower end of the beam; specifically, firstly, the second adjusting member 474 is controlled according to the distance between the upper end of the lower bracket and the end of the beam, so that the second adjusting member 474 adjusts the position of the positioning rod 48 by extending the spring rod 472, thereby adjusting the distance between the limit plate 33 and the positioning rod 48, and then the first adjusting member 42 is controlled to adjust the position of the adjusting plate 41, so that the upper end of the positioning rod 48 fits the lower end of the beam, and then the second synchronous member 4 is controlled The two transmission blocks 46 are driven to move away from each other, so that the transmission blocks 46 drive the two positioning rods 48 to move away from each other to the left and right ends of the cross beam through the connecting sleeve 471 and the top extension spring rod 472. At the same time, under the arc action of the cross beam, the cross beam can finally drive the synchronization rod 473 to move downward through the positioning rod 48, so that the synchronization rod 473 drives the telescopic end of the adjustment seat 31 to move downward, and the upper end of the lower bracket is always in close contact with the lower side of the limit plate 33, thereby realizing the distance adjustment between the upper end of the lower bracket and the end of the cross beam, so that the welding part of the lower bracket and the welding part of the cross beam are accurately aligned.

[0062] When the two positioning rods 48 move away from each other, the positioning rod 48 eventually drives the U-shaped rod 475 to move through the extended spring rod 472, so that the U-shaped rod 475 drives its corresponding welding robot 23 to move synchronously, thereby realizing the synchronous position adjustment of the welding robot 23 until it moves to the left and right ends of the beam, thereby increasing the welding efficiency of the beam and the lower bracket. After the welding of the beam and the lower bracket is completed, the second synchronization component 45 is controlled to eventually drive the positioning rod 48 back to its initial position.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cab suspension assembly welding device, comprising a base (1), a welding device (2) being mounted on the upper side of the base (1) via a plurality of connecting rods (11), characterized in that: Two left-right symmetrically arranged clamping devices (3) are installed on the upper side of the base (1), and a positioning device (4) for positioning the left and right ends of the beam is installed between the two clamping devices (3) and the welding device (2); The welding device (2) comprises a top plate (21) fixedly mounted on the upper ends of a plurality of connecting rods (11), a clamping member (22) for clamping a fixed crossbeam is mounted in the middle of the lower end of the top plate (21), and two left-right symmetrically arranged welding manipulators (23) are mounted on the lower end of the top plate (21) for sliding left and right. The upper side of the base (1) is provided with two guide grooves (12) arranged symmetrically on the left and right sides. The pressing device (3) comprises an adjustment seat (31) of an elastic telescopic structure slidably mounted in the guide groove (12) on the left and right sides. A first synchronizing member (32) is installed between the two adjustment seats (31) and the base (1). A limiting plate (33) is fixedly installed on the upper end of the telescopic end of the adjustment seat (31) close to the middle part of the base (1). A double-point clamping unit (34) for elastically clamping and fixing the lower bracket is also installed on the side of the telescopic end of the adjustment seat (31) close to the middle part of the base (1). A pressing unit (35) for pressing the upper end of the lower bracket against the lower side of the limiting plate (33) is connected between the double-point clamping unit (34) and the adjustment seat (31). Transmission plates (36) are distributed on opposite sides of the telescopic ends of the two adjustment seats (31) and below the limit plate (33); an active member (37) is connected between the transmission plate (36) and the telescopic ends of the adjustment seats (31); a slide plate (38) is slidably installed up and down in the middle of the opposite sides of the two transmission plates (36); and a smoothing member (30) is installed on opposite sides of the two slide plates (38) through two pressure spring rods (39) symmetrically arranged up and down; The double-point clamping unit (34) comprises a connecting plate (341) which slides up and down in the middle of the opposite sides of the telescopic ends of the two adjustment seats (31); two square spring rods (343) which are symmetrically arranged up and down are installed on the opposite sides of the two connecting plates (341) through a return spring (342); one end of the square spring rod (343) close to the middle of the base (1) is hinged with a second clamping piece (344) through a torsion spring; The clamping unit (35) comprises a matching plate (351) which is slidably mounted on a side of the telescopic end of the adjustment seat (31) away from the middle of the base (1); a square rod (352) is fixedly mounted on the lower end of the matching plate (351) on the side close to the middle of the base (1); an end of the square rod (352) away from the matching plate (351) slides up and down through the telescopic end of the adjustment seat (31) and is fixedly mounted with a clamping plate (353); the clamping plate (353) and the telescopic end of the adjustment seat (31) are slidably connected up and down; and the upper end of the clamping plate (353) is connected to the connecting plate (341) via a clamping spring (354).

2. The cab suspension assembly welding equipment according to claim 1, characterized in that: A connecting groove is provided at the upper end of one side of the matching plate (351) close to the middle of the base (1), and inclined grooves (355) are provided on the front and rear inner walls of the connecting groove. One end of the inclined groove (355) close to the middle of the base (1) is tilted downward, and a matching rod (356) is slidably installed in the two inclined grooves (355). One end of the matching rod (356) close to the middle of the base (1) slides left and right to penetrate the telescopic end of the adjustment seat (31) and is fixedly connected to the transmission plate (36).

3. The cab suspension assembly welding equipment according to claim 1, characterized in that: The front ends of the two adjustment seats (31) on the opposite sides of the telescopic ends are both slidably mounted with a synchronous plate (312) through a plurality of connecting springs (311) forward and backward, the opposite sides of the two synchronous plates (312) are both connected with a locking piece (313) between the corresponding square spring rods (343), the upper ends of the opposite sides of the two synchronous plates (312) are both slidably mounted with a yielding plate (315), and the rear ends of the yielding plates (315) are slidably mounted with an L-shaped transmission rod (316) on the left and right.

4. The cab suspension assembly welding equipment according to claim 3, characterized in that: A fixing sleeve (381) is fixedly installed in the middle of one side of the slide plate (38) close to the middle of the base (1), and a square-structured spring rod (382) is slidably installed in the fixing sleeve (381). The side of the spring rod (382) away from the middle of the base (1) is fixedly connected to an end of the lateral section of the transmission rod (316) close to the middle of the base (1). The front end of the spring rod (382) close to the middle of the base (1) is arranged as an inclined surface. The front end of the smoothing member (30) located at the lower side is fixedly installed at the front end of the side of the smoothing member (30) away from the middle of the base (1). The L-shaped rod (301) is used to cooperate with the inclined surface of the spring rod (382) to drive the spring rod (382) to move backward.

5. The cab suspension assembly welding equipment according to claim 3, characterized in that: A round rod (345) is fixedly mounted in the middle of the front end of the connecting plate (341), and a plurality of round holes (314) evenly arranged up and down are opened at the rear end of the synchronizing plate (312) at a position corresponding to the round rod (345), and the round holes (314) are used to cooperate with the round rod (345) to lock the position of the connecting plate (341).

6. The cab suspension assembly welding equipment according to claim 1, characterized in that: A square groove is formed at the lower end of the limit plate (33), and wave grooves (331) are formed on the front and rear inner walls of the square groove. A connecting rod (332) is slidably mounted on opposite sides of the two wave grooves (331). The lower end of the connecting rod (332) slides up and down to pass through the upper end of the corresponding transmission plate (36) and is fixedly connected to the slide plate (38).

7. The cab suspension assembly welding equipment according to claim 1, characterized in that: The positioning device (4) comprises an adjustment plate (41) distributed on the front side above the base (1); a first adjustment member (42) is connected between the middle of the adjustment plate (41) and the middle of the base (1); connection blocks (43) are fixedly installed at the left and right ends of the rear side of the adjustment plate (41); the connection blocks (43) are connected to the telescopic ends of the corresponding adjustment seats (31) by means of a buffer spring (44) so ​​as to slide up and down; two transmission blocks (46) arranged symmetrically on the left and right are installed on the middle of the rear end of the adjustment plate (41) by means of a second synchronization member (45) so as to slide left and right; a fitting unit (47) is installed at the rear end of each transmission block (46); a positioning rod (48) having an upper end arranged as a pointed structure is installed on the fitting unit (47); the fitting unit (47) is used to make the positioning rod (48) fit on the lower side of the crossbeam.

8. The cab suspension assembly welding equipment according to claim 7, characterized in that: The bonding unit (47) comprises a connecting sleeve (471) fixedly mounted on the rear end of the transmission block (46), a top extension spring rod (472) being slidably mounted in the connecting sleeve (471), the middle portion of the upper end of the top extension spring rod (472) being fixedly connected to the corresponding positioning rod (48), a synchronization rod (473) being arranged perpendicularly to the top extension spring rod (472) being distributed at the lower end of the top extension spring rod (472), and a second adjustment member (474) being connected between the lower end of the top extension spring rod (472) and the synchronization rod (473), one end of the synchronization rod (473) away from the middle portion of the base (1) slidingly passes through the telescopic end of the corresponding adjustment seat (31), and one end of the synchronization rod (473) on the rear side close to the middle portion of the base (1) being fixedly connected to the corresponding welding robot (23) via a U-shaped rod (475).

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