A stamping forming device for producing elevator guide rails

Abstract

The present invention relates to the technical field of stamping devices, and specifically discloses a stamping forming device for producing elevator guide rails, comprising a machine body and a workbench fixedly installed on the top of the machine body, a plurality of columns distributed in a square are fixedly installed on the top of the workbench, a top plate is commonly installed on the top of the plurality of columns, a hydraulic cylinder is fixedly installed on the top of the top plate, a driving plate slidably connected to the columns is fixedly installed on the output end of the hydraulic cylinder, and is tightly pressed on the top of a plate through a pressing pulley, which not only ensures that the plate can be evenly subjected to the stamping pressure of a punch, but also plays a guiding role, so that the front and rear sides of the plate can gradually slide close from the bottom of the pressing pulley, and finally separate from the pressing pulley when the punch is completely pressed into a die, so that the front and rear sides of the plate will not move or warp in the initial and middle stages of stamping, and a "J"-shaped elevator auxiliary guide rail is formed when the punch and the die are closed, thereby realizing a one-time stamping forming of the shape of the elevator auxiliary guide rail.

Description

Technical Field

[0001] The present invention relates to the technical field of punching devices, and more specifically, to a punching forming device for producing elevator guide rails. Background Art

[0002] The elevator guide rails are divided into main guide rails and auxiliary guide rails. The main guide rails and auxiliary guide rails work together to ensure the safe and smooth operation of the elevator. The main guide rails are mainly responsible for load bearing and guidance, while the auxiliary guide rails can improve the stability during operation and reduce unnecessary shaking.

[0003] The elevator auxiliary guide rail is an auxiliary guide structure. Its production process mainly includes raw material selection, steel cutting, shape processing, stamping, welding and surface treatment. In the shape processing process, after the elevator auxiliary guide rail is bent into a "J" shape, it is necessary to punch out the installation hole of the bent "J"-shaped elevator auxiliary guide rail through a stamping device, so that the auxiliary guide rail can be connected to the hoistway structure in subsequent use. However, this stamping method still has certain defects:

[0004] First of all, the current stamping of the shape of the elevator auxiliary guide rail and the stamping of the mounting hole need to be carried out in two processes, which means that process conversion is required during the production process, that is, after the shape stamping, the "J"-shaped elevator auxiliary guide rail needs to be transferred to the punching machine, and then the "J"-shaped elevator auxiliary guide rail is clamped and fixed before punching, which results in the entire production cycle of the elevator auxiliary guide rail being lengthened, and the production efficiency of the elevator auxiliary guide rail needs to be improved.

[0005] Secondly, after the elevator auxiliary guide rail is stamped into shape, an independent ejection mechanism is used to eject the "X"-shaped elevator auxiliary guide rail from the die to loosen it for unloading. However, the independent ejection mechanism means that a separate drive source needs to be set up, which increases the manufacturing and use costs of the equipment. Summary of the invention

[0006] The present invention provides a stamping and forming device for producing elevator guide rails, which solves the technical problem in the prior art that the stamping and forming of the shape of the elevator auxiliary guide rail and the stamping and forming of the mounting hole need to be carried out in two processes, resulting in a prolonged production cycle.

[0007] The present invention provides a stamping and forming device for producing elevator guide rails, comprising a machine body and a workbench fixedly installed on the top of the machine body, a plurality of columns distributed in a square are fixedly installed on the top of the workbench, a top plate is commonly installed on the top of the plurality of columns, a hydraulic cylinder is fixedly installed on the top of the top plate, a driving plate slidably connected to the columns is fixedly installed on the output end of the hydraulic cylinder, a primary pressing and punching unit and a secondary stamping and pushing-up unit for stamping the elevator auxiliary guide rails are arranged between the driving plate and the workbench, the primary pressing and punching unit comprises a primary stamping assembly and an adaptive pressing assembly, and the secondary stamping and pushing-up unit comprises a secondary stamping assembly and a return pushing-up assembly.

[0008] The first-level stamping assembly includes two sliding rods slidably mounted on the driving plate and a load-bearing plate fixedly mounted on the top of the sliding rods. A punch is commonly mounted at the bottom ends of the two sliding rods, and a die matching the punch is fixedly mounted on the top of the workbench. The second-level stamping assembly includes a number of punches fixedly mounted on the bottom of the driving plate and a number of circular holes opened on the top of the die and corresponding to the punches.

[0009] The return ejection assembly includes an ejection cavity opened in the die, a sliding plate slidably connected in the ejection cavity, a plurality of ejection rods fixedly installed on the top of the sliding plate and sliding through the die, lifting buckles fixedly installed on the front and rear sides of the sliding plate and sliding through the die, ejection buckle rods fixedly installed on the front and rear sides of the die, and self-matching buckles cooperating with the lifting buckles and the ejection buckle rods.

[0010] The punch moves down and cooperates with the die to punch the plate into an "I"-shaped elevator auxiliary guide rail. Then the punch moves down and cooperates with the round hole to punch the elevator auxiliary guide rail out of the installation hole. Finally, the punch moves up and the return ejector assembly ejects the elevator auxiliary guide rail.

[0011] Furthermore, the secondary stamping assembly also includes two cylinders fixedly mounted on the top of the driving plate and a movable plate fixedly mounted on the output end of the cylinder. A support plate is fixedly mounted on the side of the movable plate close to the punch. The support plate is located between the punch and the driving plate. The two cylinders are arranged in a 180° rotational symmetry with the output end of the hydraulic cylinder as the center, so that the output ends of the two cylinders can be extended and retracted, and the two support plates can be driven closer or farther away from each other.

[0012] Furthermore, the adaptive pressing assembly includes a plurality of return springs fixedly mounted on the bottom of the driving plate and distributed in a square shape, a pressing pulley is fixedly mounted on the bottom end of the return spring, and a limiting rod slidably penetrating the driving plate is fixedly mounted on the top of the pressing pulley.

[0013] Furthermore, the top end of the ejector rod is an arc surface that matches the arc of the die.

[0014] Furthermore, two slide grooves which are symmetrical front and back and communicated with the ejection cavity are opened in the concave mold, and the lifting buckle is slidably connected in the slide grooves.

[0015] Furthermore, L-shaped plates are fixedly installed on both the front and rear sides of the punch, and a plurality of return springs 2 are fixedly installed on the side of the L-shaped plate close to the punch.

[0016] Furthermore, the self-matching buckle is installed between the ends of the plurality of return springs that are away from the L-shaped plate.

[0017] Furthermore, the top buckle rod is U-shaped, and the two vertical sections of the top buckle rod away from the end of the die are triangular, and the self-matching buckle is composed of a wedge-shaped buckle that cooperates with the lifting buckle and two triangular buckles that cooperate with the top buckle rod and are symmetrical on the left and right.

[0018] Furthermore, a plurality of limiting rods 2 that slide through the L-shaped plate are fixedly installed on one side of the self-matching buckle close to the L-shaped plate.

[0019] Furthermore, the secondary stamping ejection unit also includes an automatic blanking component, which includes a plurality of blanking cavities opened in and passing through the die and a plurality of blanking openings opened on the top of the workbench and aligned with the blanking cavities, and a plurality of collecting boxes located below the corresponding blanking openings are fixedly installed on the inner wall of the bottom of the machine body.

[0020] The beneficial effects of the present invention are:

[0021] 1. The pressing pulley is tightly pressed on the top of the plate, which not only ensures that the plate can be evenly subjected to the punching pressure of the punch, but also plays a guiding role, so that the front and rear sides of the plate can gradually slide closer from the bottom of the pressing pulley, and finally separate from the pressing pulley when the punch is completely pressed into the die, so that the front and rear sides of the plate will not move or warp in the initial and middle stages of stamping, and form an elevator auxiliary guide rail in the shape of a "J" when the punch and the die are closed, realizing the one-time stamping of the shape of the elevator auxiliary guide rail.

[0022] 2. After the plate is punched into the "J"-shaped elevator auxiliary guide rail, the two support plates are controlled to move away from each other, and then the punch cooperates with the preset circular hole on the die to perform precise punching operation on the top of the elevator auxiliary guide rail to form a mounting hole, thereby combining the two processes of shape stamping and mounting hole stamping into one stamping forming, which significantly reduces the production process and shortens the production cycle. In addition, there is no need to re-position the elevator auxiliary guide rail in one stamping forming, which reduces the error in the punching process and improves the punching accuracy.

[0023] 3. Through the mutual cooperation of self-matching clips, lifting clips, sliding plates and ejector rods, the utilization of the punch reset return stroke is realized, and the effect of automatic ejector loosening is achieved, so that the ejector process can be completed without an additional power source, reducing production interruptions and waiting time, and reducing the cost of equipment use.

[0024] 4. By setting up the blanking cavity, the waste generated during the punching process will be collected into the collecting box through the preset blanking cavity, realizing the unified treatment of waste and resource recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0026] Figure 2 It is a partial three-dimensional structural schematic diagram of the primary material pressing and punching unit, the secondary material pressing and ejecting unit, the ejector plate, the column and the hydraulic cylinder of the present invention.

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the blanking cavity, the ejecting cavity, the sliding plate, the ejecting rod, the sliding groove and the lifting buckle part of the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving plate, the punch, the load-bearing plate, the cylinder, the L-shaped plate, the punch and the pressing pulley of the present invention.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the male mold, L-shaped plate and self-matching buckle part of the present invention.

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the second reset spring, the self-matching buckle, the second limit rod, the top buckle rod and the lifting buckle part of the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the sliding plate, lifting buckle and ejecting rod of the present invention.

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the driving plate, the supporting plate, the punch, the return spring 1, the limiting rod 1, the moving plate and the sliding rod part of the present invention.

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the auxiliary guide rail part of the elevator of the present invention.

[0034] Fig.10 It is a schematic diagram of the three-dimensional structure of the material collection box, the material drop port, the drive plate, the top plate and the hydraulic cylinder part of the present invention.

[0035] Fig.11 It is a diagram showing the changing state of the self-fitting buckle and the lifting buckle of the present invention.

[0036] In the figure: 1, machine body; 2, workbench; 3, column; 4, top plate; 5, hydraulic cylinder; 6, primary pressing and punching unit; 7, secondary pressing and ejecting unit; 8, drive plate; 9, elevator auxiliary guide rail; 601, primary pressing assembly; 602, adaptive pressing assembly; 6011, load-bearing plate; 6012, slide bar; 6013, punch; 6014, die; 6021, return spring 1; 6022, pressing pulley; 6023, limit rod 1; 701, secondary pressing assembly; 702, automatic blanking assembly; 703, return ejection assembly; 7011, cylinder; 7012, movable plate; 7013, support plate; 7014, punch; 7015, round hole; 7021, blanking cavity; 7022, blanking port; 7023, collecting box; 7030, slide; 7031, ejection cavity; 7032, sliding plate; 7033, ejection rod; 7034, lifting buckle; 7035, L-shaped plate; 7036, reset spring 2; 7037, self-fitting buckle; 7038, ejection rod; 7039, limit rod 2. DETAILED DESCRIPTION

[0037] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0038] See also Figure 1 , Figure 2 , Figure 4 and Fig. 9 In this embodiment, a stamping and forming device for producing elevator guide rails is proposed, including a body 1 and a workbench 2 fixedly installed on the top of the body 1, a plurality of columns 3 distributed in a square are fixedly installed on the top of the workbench 2, a top plate 4 is commonly installed on the top of the plurality of columns 3, a hydraulic cylinder 5 is fixedly installed on the top of the top plate 4, a driving plate 8 slidably connected to the column 3 is fixedly installed on the output end of the hydraulic cylinder 5, a primary pressing and punching unit 6 and a secondary stamping and pushing unit 7 for stamping the elevator auxiliary guide rail 9 are arranged between the driving plate 8 and the workbench 2, the primary pressing and punching unit 6 includes a primary stamping component 601 and an adaptive pressing component 602, and the secondary stamping and pushing unit 7 includes a secondary stamping component 701, an automatic blanking component 702 and a return pushing component 703.

[0039] See also Figure 2 and Figure 4The adaptive pressing component 602 includes a plurality of return springs 6021 fixedly mounted on the bottom of the driving plate 8 and distributed in a square shape, a pressing pulley 6022 is fixedly mounted on the bottom of the return spring 6021, and a limiting rod 6023 slidingly penetrating the driving plate 8 is fixedly mounted on the top of the pressing pulley 6022.

[0040] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 8 The first-level stamping assembly 601 includes two slide bars 6012 slidably mounted on the driving plate 8 and a load-bearing plate 6011 fixedly mounted on the top of the slide bars 6012. A punch 6013 is commonly mounted at the bottom of the two slide bars 6012. A die 6014 matching the punch 6013 is fixedly mounted on the top of the workbench 2. The second-level stamping assembly 701 includes two support plates 7013 located between the driving plate 8 and the punch 6013. The middle part of the punch 6013 protrudes downward, and the middle part of the die 6014 is recessed downward and coincides with the protrusion of the punch 6013, so that a "J"-shaped cavity is formed between the punch 6013 and the die 6014.

[0041] When used specifically, the plate is first placed centrally on the top of the concave die 6014, waiting for the elevator auxiliary guide rail 9 (such as Figure 1 As shown), the hydraulic cylinder 5 is started, and the output end of the hydraulic cylinder 5 pushes the driving plate 8 to move downward, thereby driving the punch 6013 to move downward, and at the same time driving the pressing pulley 6022 to move downward and press on the top of the plate. As the punch 6013 continues to move downward, the pressing pulley 6022 begins to gradually compress the return spring 6021, and the punch 6013 will press the plate downward, pressing the middle part of the plate into the "J"-shaped cavity formed between the punch 6013 and the die 6014. As the middle part of the plate is gradually pressed into the "J"-shaped cavity, the front and rear sides of the plate gradually slide closer from the bottom of the pressing pulley 6022, and finally break away from the pressing pulley 6022. As the middle part of the punch 6013 protrudes downward and moves to the bottom of the depression in the middle of the die 6014, the hydraulic cylinder 5 The output end stops moving. At this time, the punch 6013 and the die 6014 are completely molded to form a "J"-shaped cavity. The plate is punched into an "J"-shaped elevator auxiliary guide rail 9. The pressing pulley 6022 is tightly pressed on the top of the plate, which not only ensures that the plate can be evenly subjected to the punching force of the punch 6013, but also plays a guiding role, so that the front and rear sides of the plate can gradually slide close from the bottom of the pressing pulley 6022, and finally break away from the pressing pulley 6022 when the punch 6013 is completely pressed into the die 6014, so that the front and rear sides of the plate will not move or warp in the initial and middle stages of the punching, and form an "J"-shaped elevator auxiliary guide rail 9 when the punch 6013 and the die 6014 are molded together, realizing the one-time stamping forming of the elevator auxiliary guide rail 9.

[0042] Next, the elevator auxiliary guide rail 9 formed in the shape of a "J" is punched through the secondary stamping assembly 701. During the stamping process, the driving plate 8 is separated from the load-bearing plate 6011. After the punching is completed, the output end of the hydraulic cylinder 5 drives the driving plate 8 to move upward. When the top of the driving plate 8 contacts the load-bearing plate 6011, it continues to move upward, which will drive the punch 6013 to move upward and lift the elevator auxiliary guide rail 9 upward through the return lifting assembly 703, so that the elevator auxiliary guide rail 9 is loosened for easy removal. At the same time, the pressure on the reset spring 6021 is gradually reduced, so that the reset spring 6021 gradually stretches, and then as the punch 6013 continues to move upward, when the reset spring 6021 is fully stretched, it will pull the pressing pulley 6022 upward until the punch 6013 is fully reset.

[0043] See also Figure 2 , Figure 3 , Figure 4 and Figure 8 The secondary stamping assembly 701 also includes a plurality of punches 7014 fixedly mounted on the bottom of the driving plate 8 and a plurality of circular holes 7015 opened on the top of the die 6014 and corresponding to the punches 7014. Two cylinders 7011 are fixedly mounted on the top of the driving plate 8. A movable plate 7012 is fixedly mounted on the output end of the cylinder 7011. A support plate 7013 is fixedly mounted on the side of the movable plate 7012 close to the punch 6013. The two cylinders 7011 are rotationally symmetrically arranged at 180° with the output end of the hydraulic cylinder 5 as the center to save space, so that the output ends of the two cylinders 7011 can be extended and retracted at the same time, and the two support plates 7013 can be driven to move closer to or away from each other.

[0044] See also Figure 2 , Figure 3 and Fig.10 The automatic blanking assembly 702 includes a plurality of blanking cavities 7021 opened in and passing through the concave die 6014 and a plurality of blanking openings 7022 opened on the top of the workbench 2 and aligned with the blanking cavities 7021. A plurality of collecting boxes 7023 located below the corresponding blanking openings 7022 are fixedly installed on the inner wall of the bottom of the machine body 1.

[0045] When in use, after the punch 6013 and the die 6014 are completely molded together to form a "J"-shaped cavity and the plate is punched into the elevator auxiliary guide rail 9 in the shape of "J", the cylinder 7011 is started, so that the output end of the cylinder 7011 drives the support plate 7013 to move to the side away from the punch 6013, so that the two support plates 7013 are separated from each other and detached from the punch 6013 and the driving plate 8. Then, the output end of the hydraulic cylinder 5 continues to push the driving plate 8 downward, driving a plurality of punches 7014 to move downward synchronously and cooperate with the circular hole 7015 to punch the top of the elevator auxiliary guide rail 9 punched into the shape of "J" to form a mounting hole. The circular waste punched out by the punching will pass through the circular hole 7015 and the blanking cavity 7021 and fall into the collecting box through the blanking port 7022. 7023, after the plate is punched into the elevator auxiliary guide rail 9 in the shape of a "J", the two support plates 7013 are controlled to move away from each other, and then the punch 7014 cooperates with the preset circular hole 7015 on the die 6014 to perform precise punching operation on the top of the elevator auxiliary guide rail 9 to form a mounting hole, thereby merging the two processes of shape stamping and mounting hole stamping into one stamping forming, which significantly reduces the production process and shortens the production cycle. In addition, there is no need to re-position the elevator auxiliary guide rail 9 in one stamping forming, which reduces the error in the punching process and improves the punching accuracy. At the same time, the waste generated in the punching process will be collected into the collection box 7023 through the preset blanking cavity 7021, so as to realize the unified treatment of waste and resource recycling.

[0046] When the punch 6013 moves upward and is completely reset, the output end of the cylinder 7011 contracts, driving the support plate 7013 to move toward the side close to the punch 6013, so that the two support plates 7013 are reset and supported between the drive plate 8 and the punch 6013, providing support for the first stamping of the elevator auxiliary guide rail 9, and then waiting for the next stamping process.

[0047] See also Figure 1 , Figure 2 , Figure 3 and Figure 7 The return ejection assembly 703 includes an ejection cavity 7031 opened in the die 6014 and a sliding plate 7032 slidably connected to the ejection cavity 7031. A plurality of ejection rods 7033 slidingly penetrating the die 6014 are fixedly installed on the top of the sliding plate 7032. The top of the ejection rods 7033 is an arc surface that matches the arc of the die 6014.

[0048] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The sliding plate 7032 is fixedly installed with lifting buckles 7034 sliding through the female mold 6014 on both the front and rear sides. The female mold 6014 is provided with two slide grooves 7030 symmetrical in front and back and connected with the ejection cavity 7031. The lifting buckle 7034 is slidably connected in the slide grooves 7030. The male mold 6013 is fixedly installed with L-shaped plates 7035 on both the front and rear sides. The L-shaped plate 7035 is fixedly installed with a plurality of return springs 7036 on the side close to the male mold 6013.

[0049] See also Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 The front and rear sides of the concave mold 6014 are fixedly installed with top buckle rods 7038, and the other ends of several return springs 7036 are jointly installed with self-matching buckles 7037 that cooperate with the lifting buckle 7034 and the top buckle rod 7038. The self-matching buckle 7037 is fixedly installed with several limit rods 7039 that slide through the L-shaped plate 7035 on the side close to the L-shaped plate 7035.

[0050] See also Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Fig.11 The top buckle rod 7038 is U-shaped, and the two vertical sections of the top buckle rod 7038 away from the end of the die 6014 are triangular, and the self-matching buckle 7037 is composed of a wedge-shaped buckle that cooperates with the lifting buckle 7034 and two triangular buckles that cooperate with the top buckle rod 7038 and are symmetrical on the left and right.

[0051] During specific use, when the driving plate 8 drives the punch 6013 to move downward, as the punch 6013 moves and drives the L-shaped plate 7035 to move downward, the triangular buckle on the self-matching buckle 7037 will first squeeze the triangular upper end surface of the top buckle rod 7038, and because the top buckle rod 7038 is fixed, the triangular buckle will be pressed to move to the side away from the top buckle rod 7038 and compress the reset spring 2 7036, and then the triangular buckle passes over the top buckle rod 7038, and the reset spring 2 7036 drives the self-matching buckle 7037 to reset, and then, as the punch 6013 continues to move, when the punch 6013 and the die 6014 are completely molded to form a "J"-shaped cavity, and the plate is punched into an "J"-shaped elevator auxiliary guide rail 9, the wedge-shaped buckle squeezes and passes over the lifting buckle 7034, and is engaged with the lifting buckle 7034 (such as Fig.11 as shown in the upper middle figure).

[0052] When the mounting hole of the elevator auxiliary guide rail 9 is also punched, the output end of the hydraulic cylinder 5 contracts, driving the driving plate 8 to move upward, so that the punch 6013 drives the L-shaped plate 7035 to move upward, and then drives the self-matching buckle 7037 to move upward, so that the wedge-shaped buckle of the self-matching buckle 7037 pulls the lifting buckle 7034 to move upward along the slide groove 7030, thereby driving the sliding plate 7032 to move upward in the ejection cavity 7031, and then drives a plurality of ejection rods 7033 to move upward, and the elevator auxiliary guide rail stuck on the die 6014 is clamped. 9 is lifted up to loosen it so as to facilitate the removal of the elevator auxiliary guide rail 9. As the self-matching buckle 7037 continues to move, the triangular buckle of the self-matching buckle 7037 will squeeze the triangular lower end surface of the top buckle rod 7038, so that the triangular buckle is pressed to move away from the top buckle rod 7038 and compress the reset spring 2 7036, the wedge-shaped buckle of the self-matching buckle 7037 is disengaged from the lifting buckle 7034, and the lifting buckle 7034 and the sliding plate 7032 move downward and reset under the action of gravity, and then the triangular buckle passes over the top buckle rod 7038 (such as Fig.11 As shown in the lower-middle figure, and as the punch 6013 drives the L-shaped plate 7035 to continue to move upward, it is reset. Through the mutual cooperation of the self-matching buckle 7037, the lifting buckle 7034, the ejection rod 7033 and other components, the reset return stroke of the punch 6013 is utilized, and the effect of automatic ejection and loosening is achieved, so that the ejection process can be completed without an additional power source, reducing production interruptions and waiting time and reducing the cost of equipment use.

[0053] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A stamping forming device for producing elevator guide rails, characterized in that: include: A machine body (1) and a workbench (2) fixedly mounted on the top of the machine body (1); a plurality of columns (3) distributed in a square shape are fixedly mounted on the top of the workbench (2); a top plate (4) is commonly mounted on the tops of the plurality of columns (3); a hydraulic cylinder (5) is fixedly mounted on the top of the top plate (4); a driving plate (8) slidably connected to the column (3) is fixedly mounted on the output end of the hydraulic cylinder (5); a primary pressing and punching unit (6) and a secondary pressing and punching unit (7) for punching an elevator auxiliary guide rail (9) are arranged between the driving plate (8) and the workbench (2); the primary pressing and punching unit (6) comprises a primary pressing component (601) and an adaptive pressing component (602); and the secondary pressing and punching unit (7) comprises a secondary pressing component (701) and a return punching component (703); The primary stamping assembly (601) comprises two slide bars (6012) slidably mounted on a driving plate (8) and a bearing plate (6011) fixedly mounted on the top of the slide bars (6012); a punch (6013) is commonly mounted at the bottom of the two slide bars (6012); a die (6014) matching the punch (6013) is fixedly mounted on the top of the workbench (2); and the secondary stamping assembly (701) comprises a plurality of punches (7014) fixedly mounted on the bottom of the driving plate (8) and a plurality of circular holes (7015) opened on the top of the die (6014) and corresponding to the punches (7014); The return ejection assembly (703) comprises an ejection cavity (7031) provided in the concave mold (6014), a sliding plate (7032) slidably connected in the ejection cavity (7031), a plurality of ejection rods (7033) fixedly installed on the top of the sliding plate (7032) and slidingly penetrating the concave mold (6014), a lifting buckle (7034) fixedly installed on both the front and rear sides of the sliding plate (7032) and slidingly penetrating the concave mold (6014), an ejection buckle rod (7038) fixedly installed on both the front and rear sides of the concave mold (6014), and a self-matching buckle (7037) matching the lifting buckle (7034) and the ejection buckle rod (7038): The top end of the ejector rod (7033) is an arc surface that matches the arc of the concave die (6014); The concave mold (6014) is provided with two slide grooves (7030) which are symmetrical in front and back and connected to the ejection cavity (7031), and the lifting buckle (7034) is slidably connected in the slide grooves (7030); The front and rear sides of the punch (6013) are both fixedly mounted with L-shaped plates (7035), and the side of the L-shaped plate (7035) close to the punch (6013) is fixedly mounted with a plurality of return springs (7036); The self-matching buckle (7037) is installed between the ends of the plurality of return springs (7036) away from the L-shaped plate (7035); The top buckle rod (7038) is U-shaped, and the two vertical sections of the top buckle rod (7038) away from the end of the die (6014) are triangular, and the self-matching buckle (7037) is composed of a wedge-shaped buckle that cooperates with the lifting buckle (7034) and two triangular buckles that cooperate with the top buckle rod (7038) and are symmetrical on the left and right.

2. A stamping and forming device for producing elevator guide rails according to claim 1, characterized in that: The secondary stamping assembly (701) further comprises two cylinders (7011) fixedly mounted on the top of the driving plate (8) and a movable plate (7012) fixedly mounted on the output end of the cylinder (7011); a support plate (7013) is fixedly mounted on the side of the movable plate (7012) close to the punch (6013); the support plate (7013) is located between the punch (6013) and the driving plate (8); and the two cylinders (7011) are arranged symmetrically with respect to rotation at 180° with the output end of the hydraulic cylinder (5) as the center.

3. A stamping and forming device for producing elevator guide rails according to claim 1, characterized in that: The adaptive pressing assembly (602) comprises a plurality of return springs (6021) fixedly mounted on the bottom of the driving plate (8) and distributed in a square shape, a pressing pulley (6022) fixedly mounted on the bottom end of the return spring (6021), and a limiting rod (6023) slidingly penetrating the driving plate (8) fixedly mounted on the top of the pressing pulley (6022).

4. A stamping and forming device for producing elevator guide rails according to claim 1, characterized in that: A plurality of second limiting rods (7039) which slide through the L-shaped plate (7035) are fixedly installed on one side of the self-matching buckle (7037) close to the L-shaped plate (7035).

5. A stamping and forming device for producing elevator guide rails according to claim 1, characterized in that: The secondary stamping ejection unit (7) also includes an automatic blanking assembly (702), which includes a plurality of blanking cavities (7021) opened in the die (6014) and passing through the die (6014), and a plurality of blanking openings (7022) opened on the top of the workbench (2) and aligned with the blanking cavities (7021), and a plurality of collecting boxes (7023) located below the corresponding blanking openings (7022) are fixedly installed on the inner wall of the bottom of the machine body (1).

Images