Auxiliary positioning type welding machine for elevator car frame machining

Abstract

The invention discloses an auxiliary positioning type welding machine for elevator car frame machining, and belongs to the technical field of elevator car welding, the auxiliary positioning type welding machine comprises a supporting seat, a longitudinal limiting mechanism, a transverse limiting mechanism, a straight beam limiting mechanism, an upper beam limiting mechanism and a driving assembly, the longitudinal limiting mechanism is arranged on the upper surface of the supporting seat, and the transverse limiting mechanism is arranged on the upper surface of the supporting seat; a longitudinal limiting mechanism is arranged on the lower beam of the elevator car, a transverse limiting mechanism is arranged on the longitudinal limiting mechanism, the lower beam in the elevator car can be positioned through the longitudinal limiting mechanism and the transverse limiting mechanism, the longitudinal limiting mechanism is further connected with a straight beam limiting mechanism, and the lower end of the straight beam limiting mechanism is associated with the transverse limiting mechanism. And the two groups of straight beam limiting mechanisms are connected through an upper beam limiting mechanism. According to the positioning device, the upper beam, the straight beam and the lower beam can be positioned only by rotating the adjusting screw rod, elevator car frames of different sizes can be positioned without other operations, and the positioning device is convenient and rapid, so that the efficiency of machining the elevator car frames can be improved, and the practicability can also be improved.

Description

Technical Field

[0001] The invention relates to the technical field of elevator car welding, in particular to an auxiliary positioning welding machine for processing an elevator car frame. Background Art

[0002] In the early stages of elevator car manufacturing, traditional car structures mostly used riveting or bolting to assemble car wall panels, car roofs, and car floors; With the continuous increase in building height and the improvement in elevator running speed, the requirements for the strength and rigidity of elevator cars are becoming higher and higher. Welding technology can provide better connection strength. Compared with traditional connection methods, it can enable the car structure to better withstand the vertical gravity load and the horizontal inertia force and impact force. The elevator car frame welding machine is a welding device used in welding the elevator car frame, such as the elevator car frame welding device disclosed in the announcement number CN104588940B and the announcement date June 15, 2016; The existing elevator car frame welding machine still has the following technical problems when in use, such as: 1. The existing elevator car frame welding machine is not convenient for quickly positioning the components of the elevator car frame, namely the lower beam, the straight beam and the lower beam when in use. This requires a long time to position the three main steel structures of the elevator car frame before welding, resulting in low welding efficiency, which is not conducive to improving the efficiency of elevator car frame processing; 2. When the existing elevator car frame welding machine is used, it is not convenient to position the elevator car frames of different sizes, which is not conducive to improving the practicality of the existing elevator car frame welding machine; Therefore, a kind of elevator car frame processing auxiliary positioning type welding machine is needed to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide an auxiliary positioning welding machine for elevator car frame processing, so as to solve the problem mentioned in the above background technology that the existing elevator car frame processing welding machine is not convenient for quickly positioning the components of the elevator car frame and cannot position the components of the elevator car frame of different sizes.

[0004] To achieve the above object, the present invention provides the following technical solutions: An auxiliary positioning welding machine for processing an elevator car frame comprises a support seat, a longitudinal limiting mechanism, a transverse limiting mechanism, a straight beam limiting mechanism, an upper beam limiting mechanism and a driving assembly. The upper surface of the support seat is provided with a longitudinal limiting mechanism, and the longitudinal limiting mechanism is provided with a transverse limiting mechanism. The lower beam in the elevator car can be positioned by the longitudinal limiting mechanism and the transverse limiting mechanism. The longitudinal limiting mechanism is also connected to the straight beam limiting mechanism, and the lower end of the straight beam limiting mechanism is associated with the transverse limiting mechanism. The two groups of the straight beam limiting mechanisms are connected through the upper beam limiting mechanism. The longitudinal limiting mechanism and the transverse limiting mechanism are both driven by the driving assembly.

[0005] Preferably, the longitudinal limiting mechanism includes a slide groove and a support block, the slide groove is arranged on the upper surface of the support seat, and a support slider is slidably connected in the slide groove, the length of the support slider is consistent with the inner length of the slide groove, which is convenient for limiting the support slider, the support block is arranged inside the slide groove, and the axial surfaces of the two support blocks are coplanar with the axial surfaces of the slide groove, a threaded tube is passed through the bearing on the support block, and the outer side of the threaded tube is threadedly connected to two threaded sleeves, two sections of threads with opposite rotation directions are symmetrically arranged on the threaded tube about its axis, and a threaded sleeve is respectively threadedly connected to each section of the thread to realize unidirectional rotation of the threaded tube, and the two threaded sleeves move closer to or away from each other, one end of the support rod is axially connected to the two sides of the threaded sleeve, and the other end of the support rod is axially connected to the side of the support slider close to it, and the upper surfaces of the two support blocks are connected by a support pad.

[0006] Preferably, the lateral limiting mechanism includes an installation groove, which is arranged on an upper surface of a support slider at a relatively low position, and an adjusting screw is arranged in the installation groove, one end bearing of the adjusting screw is connected to the installation groove, and the other end bearing of the adjusting screw passes through the outside of the support slider, an inverted convex limit block is threadedly connected to the adjusting screw in the installation groove, and the upper part of the convex structure of the limit block is slidably connected to the upper surface of the support slider at a relatively low position.

[0007] Preferably, the straight beam limiting mechanism includes a vertical rod, the vertical rod is arranged on the upper surface of each supporting slider, and the vertical rod is coplanar with the axial plane of the supporting slider, the vertical rod is connected with a Z-shaped groove running through both sides thereof at a position close to the supporting slider, the side of the supporting slider is provided with a lateral groove, and the lateral groove is through-connected with the Z-shaped groove, the lateral groove is an inverted T-shaped structure, the central position bearing in the Z-shaped groove is connected with a shaft tube, and the outer key of the shaft tube is connected with a transmission gear, both sides of the transmission gear are meshedly connected with L-shaped tooth plates, and the upper and lower surfaces of the L-shaped tooth plates parallel to the supporting slider are provided with limiting strip grooves, and the limiting strip is slidably connected in the limiting strip groove, The limit strip is arranged on the inner top surface and the inner bottom surface of the Z-shaped groove, the inner side thread of the shaft tube is connected with a twisted threaded rod, and the lower end of the twisted threaded rod is fixedly connected to the upper surface of the flat plate, the flat plate is placed in the lateral groove, and the flat plate is provided with a guide groove running through both sides thereof, the guide groove is slidably connected with a guide shaft, and the guide shafts are connected to the limit blocks one by one, a positioning shaft is penetrated on the L-shaped tooth plate, and the outer ends of the two positioning shafts on the same side are connected by a connecting plate, the outer side of each of the positioning shafts is sleeved with a spring three connected between the connecting plate and the L-shaped tooth plate, and the outer ends of the two positioning shafts on the same side are connected to the outer side of the corresponding mounting frame, and a roller is installed on the inner side of the mounting frame.

[0008] Preferably, both ends of the guide groove are through grooves inclined downward, and the length of the through groove inclined downward is not greater than 1 / 20 of the overall length of the guide groove.

[0009] Preferably, the upper beam limiting mechanism includes a track groove, which is arranged on both sides of the vertical rod, and a track wheel is slidably connected in the track groove, the track wheel is installed on the inner side of the connecting sleeve, and one end of two piston arms is fixedly arranged on the connecting sleeve, the other end of the piston arm is seamlessly slidably connected to the inner side of the end of the square tube, and a self-operated pressure regulating valve is arranged in the middle of the square tube, the lower end of the square tube is fixedly connected to a T-shaped plate, and a J-shaped channel is arranged in the T-shaped plate, the upper end of the J-shaped channel passes through the middle of the square tube, and the lower end of the J-shaped channel is seamlessly slidably connected to one end of the support clamp on the inner side.

[0010] Preferably, the supporting clamp is composed of two parts, namely a horizontal plate structure seamlessly slidably connected to the inner side of the lower end of the J-shaped channel, and an L-shaped plate structure connected to the horizontal plate.

[0011] Preferably, the driving assembly includes a movable rod, the outer portion of the adjusting screw rod passing through the outer portion of the supporting sliding block is connected with a twisted thread sleeve, the inner twisted thread of the threaded tube is connected with a twisted thread tube, and one end of the twisted thread tube is movably extended into a limiting rod, and the end of the limiting rod extending into the twisted thread tube and the inner top end of the twisted thread tube are connected by a spring. A gear rack is installed on the other end of the twisted thread tube passing through the threaded tube, and the gear rack is connected to the gear through a one-way bearing. A bar tooth plate is meshed and connected to the lower part of the gear, and the one-way bearing makes the gear only rotate in one direction, thereby cooperating with the bar tooth plate to limit the twisted thread tube so that it can only move in one direction. The lower end of the bar tooth plate is installed in the limiting groove, and the lower surface of the bar tooth plate is evenly distributed with lower protrusions, the lower protrusion is slidably supported on the upper protrusion, and the upper protrusions are evenly distributed on the upper surface of the movable rod extending into the limiting groove, the limiting groove Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0012] Preferably, the limiting rod is a prismatic rod, and the twisted threaded tube is provided with a prismatic groove, and the prismatic rod and the prismatic groove are matched with each other.

[0013] Preferably, the upper surface of the support pad is coplanar with the upper surface of the support slider at a relatively lower position, so as to provide stable support for the lower beam of the elevator car.

[0014] Compared with the prior art, the invention has the following beneficial effects: the auxiliary positioning welding machine for elevator car frame processing can realize the positioning of the upper beam, the straight beam and the lower beam by only rotating the adjusting screw rod, and can position elevator car frames of different sizes without other operations, which is convenient and fast, thereby improving the efficiency of elevator car frame processing and also improving practicality: 1. By rotating the adjusting bolt, the tandem rod can be moved upward, and the movable plate can slide in the movable groove through the inclined groove, thereby achieving the purpose of dragging the limit rod and the twist thread sleeve. Since the limit rod is connected to the twist thread tube through a spring, and the two are limited and nested, the movable plate connected to the limit rod will also drag the twist thread tube to move. During the movement of the twist thread tube and the twist thread sleeve, the threaded tube and the adjusting screw rod can be driven to rotate respectively, thereby adjusting the distance between the two supporting sliders and the distance between the two coaxial limit blocks respectively. In addition, during the process of the two supporting sliders approaching each other, the piston arm gradually moves toward the inside of the square tube, thereby squeezing the gas in the square tube, so that the gas applies pressure to the supporting clamp through the J-shaped channel, so that the two supporting clamps clamp the upper beam. At the same time, during the movement of the limit block, the guide shaft will move in the guide groove, so that the flat plate can be moved up, and then the shaft tube can be driven to rotate by the upward movement of the twist thread rod, so that the two L-shaped tooth plates in the same group are close to each other, so that the two relative mounting frames drive the rollers to approach each other, thereby positioning the straight beam; 2. In the process of positioning the components of the elevator car frame, namely the lower beam, the straight beam and the upper beam, the limit rod is nested and connected with the twisted threaded tube to ensure that the twisted threaded tube can only move, and because the two are also connected by a spring, after the lower beam is positioned in one direction by the two supporting sliders, the limit rod can continue to move with the moving plate. In this process, the gear can only rotate in one direction on the bar tooth plate, which ensures that the two supporting sliders can stably position the lower beam. In addition, the self-powered pressure regulating valve can limit the upper beams of different widths, and the connecting plate, the positioning shaft and the spring are arranged between the L-shaped tooth plate and the mounting frame, which can facilitate the roller to position the straight beams of different widths. The connecting sleeve can slide on the vertical rod through the track groove and the track wheel, so that the straight beams of different heights can be positioned, so that the auxiliary positioning welding machine for elevator car frame processing can position elevator car frames of different sizes, thereby improving its practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the longitudinal structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of point A; Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure of point B in the middle; Figure 5 This is a schematic diagram of the supporting slider and the threaded wire tube structure of the present invention; Figure 6 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 7 For the present invention Figure 6 The schematic diagram of the enlarged structure of point C in the middle; Figure 8 This is a schematic diagram of the cross-sectional structure of the support slider of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram of point D in the middle; Fig.10 This is a schematic diagram of the connection structure between the support slider and the adjusting screw rod of the present invention; Fig.11 For the present invention Fig.10 The enlarged structural diagram of point E in the middle; Fig.12 It is a partial cross-sectional structural schematic diagram of the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of the enlarged structure at point F.

[0016] In the figure: 1, support seat; 2, slide groove; 3, support slider; 4, vertical rod; 5, track groove; 6, track wheel; 7, connecting sleeve; 8, piston arm; 9, square tube; 10, support pad; 11, gear rack; 12, gear; 13, strip tooth plate; 14, movable rod; 15, limit block; 16, support block; 17, threaded wire tube; 18, twist threaded tube; 19, limit rod; 20, spring 1; 21, threaded sleeve; 22, moving groove; 23, moving plate; 24, inclined groove; 25, series rod; 26, connecting piece; 27, adjusting screw; 28, support frame; 29, lower protrusion; 30, limit groove; 3 1. Through groove; 32. Upper protrusion; 33. Spring 2; 34. Self-operated pressure regulating valve; 35. T-shaped plate; 36. J-shaped channel; 37. Support clamp; 38. Support rod; 39. Adjusting screw; 40. Twist thread sleeve; 41. Z-shaped groove; 42. Shaft tube; 43. Transmission gear; 44. L-shaped tooth plate; 45. Limiting strip; 46. Limiting strip groove; 47. Positioning shaft; 48. Mounting frame; 49. Roller; 50. Connecting plate; 51. Lateral groove; 52. Flat plate; 53. Twist thread rod; 54. Guide groove; 55. Guide shaft; 56. Load-bearing plate; 57. Mounting groove; 58. Spring 3. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 13, the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that the welding machine used for elevator car frame processing in the past is not convenient for positioning elevator car frames of different sizes, the following technical solutions are provided, specifically, An auxiliary positioning welding machine for processing an elevator car frame comprises a support seat 1, a longitudinal limiting mechanism, a transverse limiting mechanism, a straight beam limiting mechanism, an upper beam limiting mechanism and a driving assembly. The upper surface of the support seat 1 is provided with a longitudinal limiting mechanism, and a transverse limiting mechanism is provided on the longitudinal limiting mechanism. The lower beam in the elevator car can be positioned by the longitudinal limiting mechanism and the transverse limiting mechanism. The longitudinal limiting mechanism is also connected to the straight beam limiting mechanism, and the lower end of the straight beam limiting mechanism is associated with the transverse limiting mechanism. The two groups of straight beam limiting mechanisms are connected through the upper beam limiting mechanism.

[0019] The longitudinal limiting mechanism includes a slide groove 2 and a support block 16. The slide groove 2 is arranged on the upper surface of the support seat 1, and a support slider 3 is slidably connected in the slide groove 2. The length of the support slider 3 is consistent with the inner length of the slide groove 2, which is convenient for limiting the support slider 3. The support block 16 is arranged inside the slide groove 2, and the axial surfaces of the two support blocks 16 are coplanar with the axial surfaces of the slide groove 2. A threaded tube 17 is passed through the bearing on the support block 16, and the outer side of the threaded tube 17 is threadedly connected to two threaded sleeves 21. Two sections of threads with opposite rotation directions are symmetrically arranged on the threaded tube 17 about its axis, and a threaded sleeve 21 is threadedly connected to each section of the thread, so that the threaded tube 17 can rotate unidirectionally, and the two threaded sleeves 21 move closer to or away from each other. The threaded sleeves 21 One end of a support rod 38 is axially connected to both sides, and the other end of the support rod 38 is axially connected to the side of the support slider 3 close to it. The upper surfaces of the two support blocks 16 are connected by a support pad 10, and a plurality of lower beams are laid flat on the support pad 10. The two threaded sleeves 21 can be made to move closer to or farther away from each other by rotating the threaded wire tube 17, so that the distance between the two support sliders 3 can be adjusted, and then the plurality of lower beams can be longitudinally positioned. The transverse limiting mechanism includes a mounting groove 57, and the mounting groove 57 is arranged on the upper surface of the support slider 3 at a relatively low position, and an adjusting screw rod 39 is arranged in the mounting groove 57, and one end bearing of the adjusting screw rod 39 is connected to the mounting groove 57, and the other end bearing of the adjusting screw rod 39 passes through the outside of the support slider 3, and the mounting groove 57 is provided with an adjusting screw rod 39. An inverted convex limit block 15 is threadedly connected to the adjusting screw 39, and the upper part of the convex structure of the limit block 15 is slidably connected to the relatively lower upper surface of the support slider 3. By rotating the adjusting screw 39, the two limit blocks 15 on the same adjusting screw 39 can be moved closer to or away from each other, thereby horizontally positioning a plurality of lower beams. The straight beam limit mechanism includes a vertical rod 4, which is arranged on the upper surface of each support slider 3, and the vertical rod 4 is coplanar with the axial surface of the support slider 3. The vertical rod 4 is connected to a Z-shaped groove 41 running through both sides of the vertical rod 4 near the support slider 3. A lateral groove 51 is arranged on the side of the support slider 3, and the lateral groove 51 is through-connected with the Z-shaped groove 41. The lateral groove 51 is an inverted T-shaped structure. The central position bearing is connected with a shaft tube 42, and the outer key of the shaft tube 42 is connected with a transmission gear 43, and both sides of the transmission gear 43 are meshed with L-shaped toothed plates 44, and the upper and lower surfaces of the L-shaped toothed plates 44 are parallel to the support slider 3. The limiting strip groove 46 is slidably connected with the limiting strip 45, and the limiting strip 45 is arranged on the inner top surface and the inner bottom surface of the Z-shaped groove 41, and the inner side of the shaft tube 42 is threadedly connected with a twisted threaded rod 53, and the lower end of the twisted threaded rod 53 is fixedly connected to the upper surface of the flat plate 52, the flat plate 52 is placed in the lateral groove 51, and the flat plate 52 is provided with a guide groove 54 running through both sides thereof, and the guide groove 54 is slidably connected with a guide shaft 55, and the guide shaft 55 is connected to the limit block 15 one by one.A positioning shaft 47 is provided through the L-shaped toothed plate 44, and the outer ends of the two positioning shafts 47 on the same side are connected by a connecting plate 50. The outer side of each positioning shaft 47 is sleeved with a spring 58 connected between the connecting plate 50 and the L-shaped toothed plate 44, and the outer ends of the two positioning shafts 47 on the same side are connected to the outer side of the corresponding mounting frame 48, and a roller 49 is installed on the inner side of the mounting frame 48. The two ends of the guide groove 54 are obliquely downward through grooves, and the length of the obliquely downward through groove is not greater than 1 / 20 of the overall length of the guide groove 54. During the movement of the limit block 15, it will move in the guide groove 54 through the guide shaft 55. Due to the special shape of the guide groove 54, The upper beam limiting mechanism includes a track groove 5, which is provided on both sides of the vertical rod 4, and a track wheel 6 is slidably connected to the track groove 54. The wheel 6 is installed on the inner side of the connecting sleeve 7, and one end of two piston arms 8 is fixedly provided on the connecting sleeve 7, and the other end of the piston arm 8 is seamlessly slidably connected to the inner side of the end of the square tube 9, and a self-operated pressure regulating valve 34 is provided in the middle of the square tube 9, and a T-shaped plate 35 is fixedly connected to the lower end of the square tube 9, and a J-shaped channel 36 is provided in the T-shaped plate 35, and the upper end of the J-shaped channel 36 passes through the middle of the square tube 9, and the inner side of the lower end of the J-shaped channel 36 is seamlessly slidably connected to one end of a support clamp 37, and the support clamp 37 is composed of two parts, namely a horizontal plate structure seamlessly slidably connected to the inner side of the lower end of the J-shaped channel 36, and a horizontal plate structure connected to the horizontal plate. The connected L-shaped plate structure, when the two support sliders 3 approach each other, the piston arm 8 gradually extends into the square tube 9, thereby squeezing the gas in the square tube 9. After the gas passes through the J-shaped channel 36, it presses the support clamp 37, and the two support clamps 37 are thus close to each other, thereby squeezing the upper beam to achieve the positioning of the upper beam. If the distance between the two support sliders 3 is too close, the excess gas in the square tube 9 will be discharged through the self-operated pressure regulating valve 34 to prevent damage to the components caused by excessive pressure. The upper surface of the support pad 10 and the relatively low upper surface of the support slider 3 are coplanar, which is convenient for stably supporting the lower beam of the elevator car.

[0020] Embodiment 2: In order to solve the problem that the welding machine used for elevator car frame processing in the past is not convenient for quickly positioning the components of the elevator car frame, the following technical solution is provided, specifically, the longitudinal limit mechanism and the transverse limit mechanism are both driven by a drive assembly.

[0021] The driving assembly includes a movable rod 14, an adjusting screw rod 39 that passes through the outer part of the supporting slider 3 and is threadedly connected to a twisted thread sleeve 40, an inner twisted thread of the threaded wire tube 17 is connected to a twisted threaded tube 18, and one end of the twisted threaded tube 18 is movably extended into a limiting rod 19, and the end of the limiting rod 19 that extends into the twisted threaded tube 18 and the inner top end of the twisted threaded tube 18 are connected by a spring 20, a gear rack 11 is installed on the other end of the twisted threaded tube 18 that passes through the threaded wire tube 17, and the gear rack 11 is connected to the gear 12 through a one-way bearing, and a bar toothed plate 13 is meshedly connected to the lower part of the gear 12, and the one-way bearing allows the gear 12 to rotate only in one direction, thereby cooperating with the bar toothed plate 13 to limit the twisted threaded tube 18, so that It can only move in one direction. The lower end of the strip tooth plate 13 is installed in the limiting groove 30, and the lower surface of the strip tooth plate 13 is evenly distributed with lower protrusions 29. The lower protrusions 29 are slidably supported on the upper protrusions 32, and the upper protrusions 32 are evenly distributed on the upper surface of the movable rod 14 extending into the limiting groove 30. A through groove 31 is arranged in the limiting groove 30, which penetrates to the side surface of the support seat 1, and one end of the movable rod 14 penetrates to the outside of the support seat 1 through the through groove 31, and the other end of the movable rod 14 is connected to one side of the limiting groove 30 through a spring 2 33. Three parallel movable grooves 22 are arranged on the upper surface of the support seat 1, and the three movable grooves 22 correspond to two twist thread sleeves 40 and a limiting rod 19 respectively. A movable plate 23 is slidably connected in the movable groove 22. The three movable plates 23 are respectively fixedly connected to the twist thread sleeve 40 and a limit rod 19, and the movable plate 23 is provided with an oblique groove 24 running through both sides thereof, and the three oblique grooves 24 are penetrated by the series rod 25, and the series rod 25 is fixedly connected with a symmetrical connecting piece 26, and the connecting piece 26 is fixedly connected to the lower surface of the load-bearing plate 56, and the lower end of the adjusting screw 27 is connected to the central bearing on the upper surface of the load-bearing plate 56, and the upper end of the adjusting screw 27 is threadedly penetrated through the upper part of the support frame 28, and the support frame 28 is fixedly installed on the upper surface of the support seat 1, and the upper end of the adjusting screw 27 is provided with a handle, which is used to rotate the adjusting screw 27, and the adjusting screw 27 is rotated by the handle to drive the load-bearing plate 56 to move up or down, so that it can be adjusted by the connecting piece 26 The position of the series rod 25, when the series rod 25 moves in the vertical direction, the movable plate 23 can move in the movable groove 22 through the inclined groove 24, and the movable plate 23 will synchronously drive the limit rod 19 and the twisted thread sleeve 40 connected thereto to move while moving, thereby driving the threaded wire tube 17 and the adjusting screw 39 to rotate. In addition, since the twisted threaded tube 18 is connected to a gear 12 that can only rotate in one direction through the gear rack 11, after cooperating with the bar-shaped toothed plate 13, it can be ensured that the twisted threaded tube 18 can only move in one direction. In addition, a spring 20 is arranged between the twisted threaded tube 18 and the limit rod 19, so that the limit rod 19 continues to move after the position of the twisted threaded tube 18 is fixed, so that it is convenient to continue to position it horizontally after the lower beam is positioned longitudinally.With the self-operated pressure regulating valve 34, the positioning shaft 47 movably penetrates the L-shaped tooth plate 44 and the spring 58 arranged between the connecting plate 50 and the L-shaped tooth plate 44, the components of the elevator car frame can be quickly positioned only by rotating the adjusting screw 27 to improve the efficiency of the elevator car welding process. The limiting rod 19 is a prismatic rod, and a prismatic groove is arranged on the twisted threaded tube 18, and the prismatic rod and the prismatic groove are matched with each other.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary positioning welding machine for processing an elevator car frame, comprising a support seat (1), a longitudinal limiting mechanism, a transverse limiting mechanism, a straight beam limiting mechanism, an upper beam limiting mechanism and a driving assembly, characterized in that: The upper surface of the support seat (1) is provided with a longitudinal limiting mechanism, and a transverse limiting mechanism is provided on the longitudinal limiting mechanism. The lower beam in the elevator car can be positioned by the longitudinal limiting mechanism and the transverse limiting mechanism. The longitudinal limiting mechanism is also connected to a straight beam limiting mechanism, and the lower end of the straight beam limiting mechanism is associated with the transverse limiting mechanism. The two groups of straight beam limiting mechanisms are connected via an upper beam limiting mechanism. The longitudinal limiting mechanism and the transverse limiting mechanism are both driven by a driving assembly.

2. The auxiliary positioning welding machine for elevator car frame processing according to claim 1 is characterized in that: The longitudinal limiting mechanism comprises a slide groove (2) and a support block (16); the slide groove (2) is arranged on the upper surface of the support seat (1), and a support slider (3) is slidably connected in the slide groove (2); the length of the support slider (3) matches the inner length of the slide groove (2), so as to facilitate limiting the support slider (3); the support block (16) is arranged inside the slide groove (2), and the axial surfaces of the two support blocks (16) are coplanar with the axial surface of the slide groove (2); a threaded wire tube (17) passes through the bearing on the support block (16), and the outer side of the threaded wire tube (17) is threadedly connected with two A threaded sleeve (21), two sections of threads with opposite rotation directions are symmetrically arranged on the threaded tube (17) about its axis, and each section of the threads is threadedly connected to a threaded sleeve (21), so that the threaded tube (17) can rotate in one direction, and the two threaded sleeves (21) can move towards or away from each other, and both sides of the threaded sleeve (21) are axially connected to one end of a support rod (38), and the other end of the support rod (38) is axially connected to the side of the support slider (3) close to it, and the upper surfaces of the two support blocks (16) are connected via a support pad (10).

3. The auxiliary positioning welding machine for elevator car frame processing according to claim 2 is characterized in that: The lateral limiting mechanism comprises a mounting groove (57), the mounting groove (57) being arranged on a relatively low upper surface of the support slider (3), and an adjusting screw rod (39) being arranged in the mounting groove (57), a bearing at one end of the adjusting screw rod (39) being connected to the mounting groove (57), and a bearing at the other end of the adjusting screw rod (39) passing through the outside of the support slider (3), an inverted convex limiting block (15) being threadedly connected to the adjusting screw rod (39) in the mounting groove (57), and an upper portion of the convex structure of the limiting block (15) being slidably connected to a relatively low upper surface of the support slider (3).

4. The auxiliary positioning welding machine for elevator car frame processing according to claim 3 is characterized in that: The straight beam limiting mechanism comprises a vertical rod (4), the vertical rod (4) being arranged on the upper surface of each supporting slider (3), and the vertical rod (4) and the axial surface of the supporting slider (3) being coplanar, the vertical rod (4) being connected to a Z-shaped groove (41) penetrating both sides of the vertical rod (4) at a position close to the supporting slider (3), the side surface of the supporting slider (3) being provided with a lateral groove (51), and the lateral groove (51) being through-connected with the Z-shaped groove (41), and the lateral groove (51) being inverted. The T-shaped structure comprises a shaft tube (42) connected to a bearing at a central position in the Z-shaped groove (41), and a transmission gear (43) is connected to an outer key of the shaft tube (42), and both sides of the transmission gear (43) are meshingly connected to L-shaped toothed plates (44), and the upper and lower surfaces of the L-shaped toothed plates (44) are parallel to the supporting slider (3) and are provided with limit strip grooves (46), and the limit strip grooves (46) are slidably connected to the limit strip grooves (45), and the limit strip (45) is provided with The inner top surface and the inner bottom surface of the Z-shaped groove (41) are connected to a twisted threaded rod (53) through the inner thread of the shaft tube (42), and the lower end of the twisted threaded rod (53) is fixedly connected to the upper surface of the flat plate (52). The flat plate (52) is placed in the lateral groove (51), and the flat plate (52) is provided with a guide groove (54) passing through both sides thereof, and a guide shaft (55) is slidably connected in the guide groove (54), and the guide shaft (55) is connected to the limit The block (15) is provided with a positioning shaft (47) penetrating the L-shaped toothed plate (44), and the outer ends of the two positioning shafts (47) on the same side are connected by a connecting plate (50), and the outer side of each positioning shaft (47) is sleeved with a spring three (58) connected between the connecting plate (50) and the L-shaped toothed plate (44), and the outer ends of the two positioning shafts (47) on the same side are connected to the outer side of the corresponding mounting frame (48), and the inner side of the mounting frame (48) is provided with a roller (49).

5. The auxiliary positioning welding machine for elevator car frame processing according to claim 4 is characterized in that: Both ends of the guide groove (54) are through grooves extending obliquely downward, and the length of the through groove extending obliquely downward is no greater than 1 / 20 of the overall length of the guide groove (54).

6. The auxiliary positioning welding machine for elevator car frame processing according to claim 5, characterized in that: The upper beam limiting mechanism comprises a track groove (5), the track groove (5) being provided on both sides of the vertical rod (4), and a track wheel (6) being slidably connected in the track groove (5), the track wheel (6) being mounted on the inner side of a connecting sleeve (7), and one end of two piston arms (8) being fixedly provided on the connecting sleeve (7), and the other end of the piston arm (8) being seamlessly slidably connected to the inner side of the end of a square tube (9), and a self-operated pressure regulating valve (34) being provided in the middle of the square tube (9), and a T-shaped plate (35) being fixedly connected to the lower end of the square tube (9), and a J-shaped channel (36) being provided in the T-shaped plate (35), and the upper end of the J-shaped channel (36) being connected to the middle of the square tube (9), and one end of a support clamp (37) being seamlessly slidably connected to the inner side of the lower end of the J-shaped channel (36).

7. The auxiliary positioning welding machine for elevator car frame processing according to claim 6 is characterized in that: The supporting clamp (37) is composed of two parts, namely a horizontal plate structure seamlessly slidably connected to the inner side of the lower end of the J-shaped channel (36), and an L-shaped plate structure connected to the horizontal plate.

8. The auxiliary positioning welding machine for elevator car frame processing according to claim 7 is characterized in that: The driving assembly comprises a movable rod (14), the outer portion of the adjusting screw rod (39) extending through the outer portion of the supporting slider (3) is threadedly connected to a twisted thread sleeve (40), the inner side of the threaded wire tube (17) is threadedly connected to a twisted thread tube (18), and one end of the twisted thread tube (18) is movably extended into a limit rod (19), the end of the limit rod (19) extending into the twisted thread tube (18) and the inner top of the twisted thread tube (18) are connected via a spring 1 (20), and a gear rack (11) is installed on the other end of the twisted thread tube (18) extending through the threaded wire tube (17), and the gear rack (11) is unidirectionally connected to the inner portion of the threaded wire tube (17). The bearing is connected to the gear (12), and a bar tooth plate (13) is meshedly connected below the gear (12). The one-way bearing allows the gear (12) to rotate in only one direction, so that the bar tooth plate (13) can limit the twisted threaded tube (18) so that it can move in only one direction. The lower end of the bar tooth plate (13) is installed in the limiting groove (30), and the lower surface of the bar tooth plate (13) is evenly distributed with lower protrusions (29). The lower protrusions (29) are slidably supported on the upper protrusions (32), and the upper protrusions (32) are evenly distributed on the upper surface of the movable rod (14) extending into the limiting groove (30). The limiting groove (30) is provided with a through hole. A through groove (31) is connected to the side surface of the support seat (1), and one end of the movable rod (14) passes through the through groove (31) to the outside of the support seat (1), and the other end of the movable rod (14) is connected to one side of the limiting groove (30) through a spring 2 (33). The upper surface of the support seat (1) is provided with three parallel movable grooves (22), and the three movable grooves (22) respectively correspond to two twist thread sleeves (40) and a limiting rod (19). A movable plate (23) is slidably connected in the movable groove (22), and the three movable plates (23) are respectively fixedly connected to the twist thread sleeves (40) and a limiting rod (19). The movable plate (23) is provided with oblique grooves (24) penetrating through both sides thereof, and the three oblique grooves (24) are penetrated by a series rod (25); a symmetrical connecting piece (26) is fixedly connected to the series rod (25), and the connecting piece (26) is fixedly connected to the lower surface of the load-bearing plate (56); the lower end of the adjusting screw (27) is connected to the central bearing on the upper surface of the load-bearing plate (56); the upper end of the adjusting screw (27) is threadedly penetrated through the upper part of the support frame (28); the support frame (28) is fixedly mounted on the upper surface of the support seat (1); and a handle is provided at the upper end of the adjusting screw (27) for rotating the adjusting screw (27).

9. The auxiliary positioning welding machine for elevator car frame processing according to claim 8, characterized in that: The limiting rod (19) is a prismatic rod, the twisted threaded tube (18) is provided with a prismatic groove, and the prismatic rod and the prismatic groove fit together.

10. The auxiliary positioning welding machine for elevator car frame processing according to claim 9, characterized in that: The upper surface of the support pad (10) and the relatively lower upper surface of the support slider (3) are coplanar, which facilitates stable support of the lower beam of the elevator car.

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