Automatic bending device for tailstock for forklift and machining method

Abstract

The invention discloses an automatic bending device for a tailstock for a forklift and a machining method. The automatic bending device comprises a feeding assembly, a carrying assembly, a positioning assembly, a profiling assembly and a stacking assembly. The carrying assembly is arranged on the moving route of the feeding assembly and carries the tailstock blank or the finished tailstock so that the feeding assembly, the positioning assembly, the profiling assembly and the stacking assembly can be connected in series to form a production line. The positioning assembly comprises a left-right positioning piece and a front-back positioning piece, and the left-right positioning piece and the front-back positioning piece adjust the horizontal position of the tailstock blank relative to the profiling assembly. The profiling assembly comprises a bending piece forming a V-shaped groove. The feeding assembly is arranged to move a tailstock blank to the operation range of the carrying assembly, the positioning assembly is arranged to adjust the position between the tailstock blank and the profiling assembly, the profiling assembly is arranged to bend the tailstock blank to form a finished product tailstock, and the stacking assembly is arranged to stack the finished product tailstock. And a carrying assembly is arranged to connect the feeding assembly, the positioning assembly, the profiling assembly and the stacking assembly into a complete tailstock automatic production line.

Description

Technical Field

[0001] The present invention relates to the technical field of forklifts, and in particular to an automatic bending device and a processing method for a tailstock for a forklift. Background Art

[0002] The forklift frame includes the tailstock, which is primarily used to connect the vehicle body, support the counterweight, and steering axle. It is integrated with the frame through welding and consists of a base plate and side panels. The base plate is the core load-bearing component, connecting the two side panels and securing other functional components. The side panels are integrally formed with the base plate through die pressing, thereby improving the overall strength and production efficiency of the tailstock. The base plate can also be used to secure the forklift counterweight and rear axle, simplifying the entire tailstock structure and reducing production costs.

[0003] Published Chinese patent CN204400551 U provides a forklift tailstock base plate structure, which includes a base plate and side plates arranged on both sides of the base plate. The base plate and side plates are formed from a single plate by die pressing. The base plate is provided with process holes for mold clamping. The rear end of the base plate is provided with a mounting plate for fixing a counterweight and a bending plate for fixing a rear axle. The front end of the base plate is provided with a connecting plate for connecting to the rear tail plate of the forklift. However, the inventors of this application found that the existing one-piece molding process is mostly completed manually, and the workpieces are manually transported, placed, positioned, pressed, and stacked. This has low production efficiency and high labor intensity, reducing the production efficiency of the tailstock and increasing production costs. Summary of the Invention

[0004] The present invention aims to solve the problem that the existing process of integrated molding of the bottom plate and the side plate is completed manually, and provides an automatic bending device and processing method for a forklift tailstock. The specific technical solution is as follows:

[0005] An automatic bending device for a tailstock for a forklift, the automatic bending device is used to bend a tailstock blank into a finished tailstock, the automatic bending device includes: a movable feeding assembly, a conveying assembly, a positioning assembly, a pressing assembly, and a stacking assembly; the conveying assembly is arranged on the moving route of the feeding assembly, and the conveying assembly can convey the tailstock blank or the finished tailstock, so that the feeding assembly, the positioning assembly, the pressing assembly and the stacking assembly are connected in series to form a production line; the positioning assembly includes left and right positioning parts and front and rear positioning parts, and the left and right positioning parts and the front and rear positioning parts can adjust the horizontal position of the tailstock blank relative to the pressing assembly; the pressing assembly includes a bending part that forms a V-shaped groove to bend the tailstock blank.

[0006] Furthermore, the loading assembly includes: a plurality of loading slide rails placed horizontally and parallel to each other, one end of the loading slide rail is set in the operating range of the transport assembly; and a loading tray for placing the tailstock blank, and the loading tray can move along the loading slide rail.

[0007] Preferably, the handling component includes: a grabbing part for grabbing a fixed tailstock blank or a finished tailstock; and a robot that drives the grabbing part to move within a spatial range, and the operating trajectory of the robot may intersect with the operating trajectory of the loading component and the operating trajectory of the positioning component, or intersect with the operating trajectory of the positioning component and the operating trajectory of the profiling component, or intersect with the operating trajectory of the profiling component and the operating trajectory of the stacking component.

[0008] Preferably, the grasping member includes a bracket connected to the moving end of the robot, and the bracket is connected to a plurality of electromagnets and a plurality of proximity switches along the length direction. When the proximity switches contact the tailstock blank or the finished tailstock, the electromagnets are energized to grasp the tailstock blank or the finished tailstock; the length direction of the bracket is consistent with the length direction of the tailstock blank or the finished tailstock, and the longitudinal center plane of the bracket is coplanar with the longitudinal center plane of the tailstock blank or the finished tailstock.

[0009] Preferably, the positioning assembly also includes: a support frame for supporting left and right positioning members and front and rear positioning members, the front and rear positioning members are axially symmetrical, and the symmetry plane of the front and rear positioning members is the center plane B in the vertical movement direction; at least two positioning plates symmetrically arranged on the top of the front and rear positioning members, the symmetry plane of the positioning plates is the center plane B, and the positioning plates can approach each other along the movement direction of the front and rear positioning members to drive the longitudinal center plane of the tailstock blank to be coplanar with the center plane B; balls arranged on the top surface of the positioning plate, the balls roll freely relative to the top surface of the positioning plate, and the surface of the balls is tangent to the bottom surface of the tailstock blank.

[0010] Preferably, the front and rear positioning members include a centering member for driving the positioning plates toward each other, and limit columns are provided at both ends of the positioning plates along the moving direction of the centering member, the surface of the limit columns can be tangent to the side of the tailstock blank, and the surface of the limit columns can roll relative to the side of the tailstock blank; and the left and right positioning members include a number of fixed plates and movable plates arranged on the opposite side edges of the positioning plate, the fixed plate is fixed relative to the front and rear positioning members, the movable plate moves relative to the front and rear positioning members, the moving direction of the movable plate is perpendicular to the moving direction of the positioning plate, and the movable plate can push the tailstock blank close to the fixed plate.

[0011] Preferably, the profiling assembly also includes a lubricating part, which includes a container for containing lubricating oil and a roller brush that rolls relative to the side wall of the container. The side of the roller brush can come into contact with the lubricating oil, and the handling assembly can grab the tail frame blank and be tangent to the side of the roller brush to drive the roller brush to roll.

[0012] Preferably, the bending part includes: a lower V-die and an upper V-die that match each other, the cross-sections of the lower V-die and the upper V-die are both the cross-sections of the finished tailstock, and the tailstock blank is placed on the top surface of the lower V-die; and a press for driving the upper V-die to move, the press drives the bottom surface of the upper V-die close to the top surface of the lower V-die to bend the two side plates of the tailstock blank to form a finished tailstock.

[0013] Preferably, the palletizing assembly includes a palletizing tray for placing the finished product tail rack and a moving trolley for moving the palletizing tray.

[0014] A processing method based on an automatic bending device comprises the following steps: aligning the length direction of a tailstock blank with the moving direction of a feeding assembly for stacking, the feeding assembly moving the tailstock blank to the operating range of a conveying assembly; the conveying assembly moving the tailstock blank from the feeding assembly to a positioning assembly, the positioning assembly adjusting and fixing the horizontal position of the tailstock blank relative to a profiling assembly; the conveying assembly moving the positioned tailstock blank to a profiling assembly and applying lubricating oil to form a single-sided smooth tailstock blank, the profiling assembly bending and deforming both sides of the single-sided smooth tailstock blank to form a V-shaped finished tailstock; the conveying assembly moving the finished tailstock to a stacking assembly for stacking and stacking along the height direction.

[0015] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0016] The present invention arranges a feeding component to move the tailstock blank to the operating range of the conveying component, arranges a positioning component to adjust the positional relationship between the tailstock blank and the pressing component, arranges a pressing component to bend the tailstock blank to form a finished tailstock, arranges a stacking component to stack the finished tailstock, and then arranges a conveying component to connect the feeding component, the positioning component, the pressing component and the stacking component into a complete tailstock automated production line, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an embodiment of the present invention;

[0018] Figure 2 This is a schematic structural diagram of an embodiment of a feeding assembly;

[0019] Figure 3 for Figure 1 A magnified view of the structure at point A;

[0020] Figure 4 This is a schematic structural diagram of a positioning component embodiment;

[0021] Figure 5 This is a schematic structural diagram of a lubricating component embodiment;

[0022] Figure 6 Schematic diagram of the structure of a bending part embodiment;

[0023] Figure 7 This is a schematic diagram of the tailstock blank structure;

[0024] Figure 8 This is a schematic diagram of the finished tailstock structure;

[0025] Figure 9 The figure is a flow chart of the processing method.

[0026] In the figure: 1. Loading component; 11. Loading slide rail; 12. Loading tray; 2. Handling component; 21. Robot; 22. Gripping piece; 221. Support; 222. Electromagnet; 223. Proximity switch; 3. Positioning component; 31. Support frame; 32. Positioning plate; 33. Ball; 34. Left and right positioning piece; 341. Fixed plate; 342. Moving plate; 35. Front and back positioning piece; 351. Limit column; 352. Centering piece; 4. Pressing component; 41. Lubricating piece; 411. Rotary brush; 412. Containing container; 42. Bending piece; 421. Lower V die; 422. Upper V die; 423. Press; 5. Palletizing component; 51. Moving trolley; 52. Palletizing tray; 6. Tailstock blank; 7. Finished tailstock. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "above", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the invention is usually placed. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] Embodiment 1

[0030] As Figure 7 and Figure 8 shown, both the tailstock blank 6 and the finished tailstock 7 are axisymmetric figures, and the direction of their symmetry axis is their length direction. The present invention can bend the two sides of the axisymmetric blank plate to form the finished axisymmetric plate. The tailstock blank 6 in Embodiment 1 is a T-shaped axisymmetric blank plate, where the middle vertical part is the bottom plate of the forklift, and the two sides of the bottom plate protrude as side plates. The two protrusions on both sides of the tailstock blank 6 are bent relatively clockwise and counterclockwise respectively to form the finished tailstock 7, and the bending angle is set according to the angle required by actual production.

[0031] As Figure 1 and Figure 4 ​​As shown, this embodiment includes: a movable feeding component 1, a conveying component 2, a positioning component 3, a profiling component 4, and a palletizing component 5; the conveying component 2 is arranged on the moving route of the feeding component 1, and the conveying component 2 can convey the tail frame blank 6 or the finished tail frame 7, so as to connect the feeding component 1, the positioning component 3, the profiling component 4 and the palletizing component 5 in series to form a production line; the positioning component 3 includes left and right positioning parts 34 and front and rear positioning parts 35, and the left and right positioning parts 34 and the front and rear positioning parts 35 can adjust the horizontal position of the tail frame blank 6 relative to the profiling component 4; the profiling component 4 includes a bending part 42 that forms a V-shaped groove to bend the tail frame blank 6.

[0032] Specifically, Figure 1 The direction of the arrow in represents the moving route of the tailstock blank 6 or the finished tailstock 7.

[0033] Specifically, the loading assembly 1, handling assembly 2, positioning assembly 3, profiling assembly 4, and palletizing assembly 5 are all placed within a closed enclosure, preventing operators from entering during production and processing, thereby improving production safety. Furthermore, the loading port of the loading assembly 1 is connected to the outside world, and the palletizing assembly 5 can transport the finished product tailstock 7 stacked on it to the next processing location.

[0034] Specifically, the tailstock blank 6 is placed on the loading assembly 1 for stacking, and the loading assembly 1 moves it to the right to the operating range of the conveying assembly 2 through the slide rail; the free end of the conveying assembly 2 has at least four degrees of freedom, so that it can grab the tailstock blank 6 and move it within the spatial range, including translation and rotation of the tailstock blank 6, so that the length direction of the tailstock blank 6 is consistent with the direction of the left and right positioning members 34, and the width direction is consistent with the front and rear positioning members 35, and then it is placed in the area surrounded by the left and right positioning members 34 and the front and rear positioning members 35; the left and right positioning members 34 and the front and rear positioning members 35 all apply pressure to the four sides of the tailstock blank 6 , and then determine the positional relationship between the tailstock blank 6 and the left and right positioning members 34 and the front and rear positioning members 35. Since the positioning component 3 and the profiling component 4 are fixedly connected to the ground, the relative positions of the two are fixed, and then determine the relative positions of the tailstock blank 6 and the profiling component 4, so that the handling component 2 can place the tailstock blank 6 between the bending parts 42 of the profiling component 4 for bending, and at the same time make the length direction of the tailstock blank 6 consistent with the length direction of the V-shaped groove, so that under the pressure of the bending parts 42, the two sides of the tailstock blank 6 can be bent and deformed along the side surfaces of the V-shaped groove, thereby forming a finished tailstock 7 with a V-shaped cross section.

[0035] Secondly, the transport component 2 is also arranged between the stacking component 5 and the press component 4, so that the free end of the transport component 2 can clamp the finished tail rack 7 from the press component 4. At this time, the length direction of the finished tail rack 7 is determined relative to the transport component 2, so that the transport component 2 can transport the finished tail rack 7 to the stacking component 5 for stacking. During the stacking process, the length directions of the finished tail racks 7 are the same, and the finished tail racks 7 on the upper layer can be embedded in the V-shaped cavity formed by the finished tail racks 7 on the lower layer, thereby keeping the stacked finished tail racks 7 stable.

[0036] Secondly, the handling component 2 connects the production processes of the feeding component 1, the positioning component 3, the pressing component 4 and the stacking component 5 in series into a complete tailstock production line. At the same time, the feeding component 1, the positioning component 3, the pressing component 4 and the stacking component 5 are all provided with sensors to determine their own movement state, and then control the handling component 2 to carry out the handling, thereby realizing the automated production of the tailstock, improving production efficiency, reducing manual participation, reducing production costs, and at the same time improving the processing accuracy of the tailstock blank 6 being bent into the finished tailstock 7.

[0037] like Figure 2 As shown, the loading assembly 1 includes: a plurality of loading rails 11 placed horizontally and parallel to each other, one end of the loading rail 11 is set in the working range of the conveying assembly 2; and a loading tray 12 for placing the tailstock blank 6, and the loading tray 12 can move along the loading rail 11.

[0038] Specifically, in this embodiment, the loading assembly 1 includes two parallel loading rails 11, the left end of the loading rail 11 is the loading port, and the right end of the loading rail 11 is located within the operating range of the conveying assembly 2, wherein the length direction of the loading rail 11 is the length direction of the tailstock blank 6; the loading tray 12 is slidably connected to the loading rail 11, and a number of tailstock blanks 6 are stacked on its top surface, and a plurality of limit rods are formed on its top surface around the tailstock blank 6, so that it does not move horizontally relative to the loading tray 12, and at the same time, infrared sensors are provided at the bottom and top of the limit rod, which can sense whether there is a tailstock blank 6 at the same height as itself, and then judge whether there is a tailstock blank 6 on the loading tray 12 and whether it is full of tailstock blanks 6.

[0039] Secondly, a loading cylinder is fixedly connected to the ground, and its telescopic direction is consistent with the length direction of the loading slide 11, and its telescopic end is fixedly connected to the right side of the loading tray 12. When the infrared sensor determines that the loading tray 12 is full of tailstock blanks 6, the loading cylinder drives the loading tray 12 to move to the right along the loading slide 11, and then approaches the conveying assembly 2 until it moves to the operating range of the conveying assembly 2. The conveying assembly 2 then clamps the tailstock blank 6 and moves it to the positioning assembly 3; when the infrared sensor determines that there is no tailstock blank 6 on the loading tray 12, the loading cylinder drives the loading tray 12 to move to the left, so that the discharge port moves to the outside of the fence until the operator or the equipment of the previous process fills the loading tray 12 with tailstock blanks 6.

[0040] like Figure 3 As shown, the handling component 2 includes: a grabbing member 22 for grabbing the fixed tailstock blank 6 or the finished tailstock 7; and a robot 21 for driving the grabbing member 22 to move within a spatial range. The operating trajectory of the robot 21 may intersect with the operating trajectory of the loading component 1 and the operating trajectory of the positioning component 3, or intersect with the operating trajectory of the positioning component 3 and the operating trajectory of the profiling component 4, or intersect with the operating trajectory of the profiling component 4 and the operating trajectory of the stacking component 5.

[0041] Specifically, it can be known from the common knowledge in this field that the structure of the robot 21 is determined. First, the operating range of the robot 21 can intersect with the loading component 1, the positioning component 3 and the pressing component 4, so that it can move the tailstock blank 6 from the loading component 1 to the positioning component 3 by itself, and then move it to the pressing component 4 to form a finished tailstock 7; second, the operating range of the robot 21 can intersect with the pressing component 4 and the stacking component 5, so that it can take out the finished tailstock 7 in the pressing component 4 and stack it on the stacking component 5, thereby forming a complete tailstock automated production line.

[0042] Furthermore, the grasping member 22 includes a bracket 221 connected to the moving end of the robot 21, and the bracket 221 is connected to a plurality of electromagnets 222 and a plurality of proximity switches 223 along the length direction. When the proximity switches 223 contact the tailstock blank 6 or the finished tailstock 7, the electromagnets 222 are energized to grasp the tailstock blank 6 or the finished tailstock 7; the length direction of the bracket 221 is consistent with the length direction of the tailstock blank 6 or the finished tailstock 7, and the longitudinal center plane of the bracket 221 is coplanar with the longitudinal center plane of the tailstock blank 6 or the finished tailstock 7.

[0043] Specifically, one end of the bracket 221 is fixedly connected to the automatic end of the robot 21, so that the robot 21 can drive the bracket 221 to rotate in multiple directions. The other end of the bracket 221 is fixedly connected to two electromagnets 222, and the arrangement direction of the two electromagnets 222 is consistent with the length direction of the bracket 221. The magnetic field generated by the power supply of the electromagnet 222 can stably grab the tailstock blank 6 or the finished tailstock 7, thereby enabling the two electromagnets 222 to grab along the length direction of the tailstock blank 6 or the finished tailstock 7, thereby making the length direction of the tailstock blank 6 or the finished tailstock 7 consistent with the length direction of the bracket 221, thereby fixing the position of the tailstock blank 6 or the finished tailstock 7 relative to the free end of the robot 21; secondly, a proximity switch 223 is provided on the side of the electromagnet 222, and the proximity switch 223 is fixedly connected to the bracket 221, and a compression spring is provided between it and the bracket 221, so that when the proximity switch 223 is compressed, the compression spring can be compressed and deformed to absorb the impact received by the proximity switch 223.

[0044] Secondly, the free end of the robot 21 drives the bracket 221, and then drives the electromagnet 222 and the proximity switch 223 to grab the tailstock blank 6 or the finished tailstock 7. When the proximity switch 223 contacts its surface and is compressed, the electromagnet 222 is energized to generate a magnetic field and then grab it, thereby completing the grabbing of it by the handling component 2; when the sensors at other positions sense that the tailstock blank 6 or the finished tailstock 7 is placed in the position of the next process, the electromagnet 222 is powered off and separated from it, so that it can move correctly to the position of the next process and continue with automated production.

[0045] like Figure 4 As shown, the positioning assembly 3 also includes: a support frame 31 for supporting left and right positioning members 34 and front and rear positioning members 35, the front and rear positioning members 35 are axially symmetrical, and the symmetry plane of the front and rear positioning members 35 is the center plane B in the vertical moving direction; at least two positioning plates 32 symmetrically arranged on the top of the front and rear positioning members 35, the symmetry plane of the positioning plates 32 is the center plane B, and the positioning plates 32 can approach each other along the moving direction of the front and rear positioning members 35 to drive the longitudinal center plane of the tailstock blank 6 to be coplanar with the center plane B; the ball 33 arranged on the top surface of the positioning plate 32, the ball 33 rolls freely relative to the top surface of the positioning plate 32, and the surface of the ball 33 is tangent to the bottom surface of the tailstock blank 6.

[0046] Specifically, the support frame 31 , the transport assembly 2 and the profiling assembly 4 are all fixed on the ground, and the three are relatively fixed.

[0047] Secondly, the length direction of the support frame 31 is the front-to-back direction, and the middle plane perpendicular to its length direction is the center plane B, which is also the symmetry plane of the support frame 31 and the front and rear positioning members 35; the front and rear positioning members 35 are respectively arranged on the front and rear side surfaces of the tailstock blank 6, and its moving parts can approach the center plane B along the front-to-back direction, and its two symmetrical top surfaces are respectively fixedly connected to the positioning plates 32, and the top surfaces of the positioning plates 32 are connected with balls 33 that can roll freely to indirectly reduce the friction of the top surface of the positioning plates 32, so that when the front and rear positioning members 35 drive the positioning plates 32 to approach each other, the positioning members can drive the tailstock blank 6 placed on the balls 33 to approach each other to the center plane B, while avoiding the surface wear of the tailstock blank 6 during the movement relative to the positioning members, ensuring the surface quality of the tailstock blank 6 during the positioning process, and then determining its position relative to the profiling component 4 in the front-to-back direction.

[0048] Furthermore, the front and rear positioning members 35 include a centering member 352 for driving the positioning plates 32 toward each other, and limiting columns 351 are provided at both ends of the positioning plates 32 along the moving direction of the centering member 352. The surface of the limiting column 351 can be tangent to the side of the tailstock blank 6, and the surface of the limiting column 351 can roll relative to the side of the tailstock blank 6; and the left and right positioning members 34 include a number of fixed plates 341 and movable plates 342 arranged on the opposite side edges of the positioning plate 32, the fixed plate 341 is fixed relative to the front and rear positioning members 35, the movable plate 342 moves relative to the front and rear positioning members 35, the moving direction of the movable plate 342 is perpendicular to the moving direction of the positioning plate 32, and the movable plate 342 can push the tailstock blank 6 close to the fixed plate 341.

[0049] Specifically, the moving parts of the front and rear positioning members 35 are the centering members 352. In this embodiment, the centering member 352 includes a single gear, two parallel racks and two parallel slide rails. The gear is meshed with the two racks respectively, and the racks form a sliding connection with the slide rails, and are fixedly connected to the positioning plate 32. The rotating gear can drive the racks to move synchronously and reversely along the slide rails, thereby driving the positioning plate 32 to move synchronously and reversely toward the center plane B. Secondly, the front end of the positioning plate 32 located on the front side of the front and rear positioning members 35 and the rear end of the positioning plate 32 located on the rear side of the front and rear positioning members 35 respectively form a plurality of limit posts 35 1. In this embodiment, five limiting posts 351 are formed on one side. The axis of the limiting post 351 is perpendicular to the top surface of the positioning plate 32, and its side surface is rollingly connected to the rubber wheel. The axis of the rubber wheel coincides with the axis of the limiting post 351. When the positioning plate 32 moves toward each other and approaches the center plane B, the limiting posts 351 at both ends simultaneously approach each other, thereby respectively driving the front and rear side surfaces of the tailstock blank 6 to approach the center plane B, thereby making its symmetry plane coincide with the center plane B, and the front and rear side surfaces of the tailstock blank 6 are tangent to the radial side surface of the rubber wheel, thereby determining its front and rear position relative to the positioning component 3, and further determining its front and rear position relative to the profiling component 4.

[0050] Secondly, the left and right positioning members 34 include a fixed plate 341 arranged at the left end of the front and rear positioning members 35 and a movable plate 342 arranged at the right end of the front and rear positioning members 35, wherein the fixed plate 341 and the movable plate 342 are also symmetrical about the center plane B; the fixed plate 341 is fixedly connected to the support frame 31, so that the distance between its right side and the positioning plate 32 remains unchanged; the movable plate 342 is fixedly connected to the telescopic end of the positioning cylinder, and the telescopic direction of the positioning cylinder is the left and right direction, which is perpendicular to the moving direction of the positioning plate 32. When the positioning cylinder drives the movable plate 342 to move toward the fixed plate 341, the movable plate 342 contacts the tail frame blank 6 and pushes it toward the fixed plate 341 moves, at this time the front and rear side surfaces of the tailstock blank 6 respectively drive the rubber wheels to roll, thereby reducing the wear on the front and rear side surfaces during the movement, until the left and right side surfaces of the tailstock blank 6 are in contact with the fixed plate 341 and the movable plate 342 at the same time, thereby determining the left and right position of the tailstock blank 6 relative to the positioning component 3, and then determining its left and right position relative to the pressing component 4, and then determining the specific position of the tailstock blank 6 relative to the pressing component 4, thereby enabling the robot 21 to accurately place the tailstock blank 6 placed on the positioning component 3 into the feed port of the pressing component 4 for bending and deformation through the grasping part 22, thereby improving the processing accuracy of the tailstock blank 6 to form the finished tailstock 7.

[0051] like Figure 5 As shown, the press component 4 also includes a lubricating part 41, which includes a container 412 for containing lubricating oil and a roller brush 411 that rolls relative to the side wall of the container 412. The side of the roller brush 411 can come into contact with the lubricating oil, and the handling component 2 can grab the tail frame blank 6 and be tangent to the side of the roller brush 411 to drive the roller brush 411 to roll.

[0052] Specifically, the bottom of the holding container 412 forms a supporting foot, and the top thereof forms a groove for holding the lubricating oil. The side wall thereof is rollingly connected to the axial ends of the roller brush 411, so that the roller brush 411 can roll relative to the groove, and its surface interferes with the lubricating oil; secondly, the grasping member 22 grasps the tail frame blank 6 and is tangent to the side of the roller brush 411. The axial direction of the roller brush 411 is perpendicular to the length direction of the tail frame blank 6, and its axial length is not less than the width of the tail frame blank 6. The robot 21 drives the tail frame blank 6 to move along the side of the roller brush 411, which can drive the roller brush 411 to roll, and then the side thereof drives the lubricating oil in the holding container 412 to the bottom surface of the tail frame blank 6, thereby reducing its bottom surface friction coefficient, and reducing the wear of its bottom surface by the press component 4 during the subsequent bending of the tail frame blank 6.

[0053] like Figure 6As shown, the bending part 42 includes: a lower V-die 421 and an upper V-die 422 that match each other, the cross-sections of the lower V-die 421 and the upper V-die 422 are both the cross-sections of the finished tail stock 7, and the tail stock blank 6 is placed on the top surface of the lower V-die 421; and a press 423 for driving the upper V-die 422 to move, the press 423 drives the bottom surface of the upper V-die 422 close to the top surface of the lower V-die 421 to bend the two side plates of the tail stock blank 6 to form the finished tail stock 7.

[0054] Specifically, the press 423 is a hydraulic press commonly used in this field. The structure of the press 423 in the figure is only schematic, indicating its connection relationship with the upper V-die 422 and the lower V-die 421. It can drive the upper V-die 422 to move vertically relative to the lower V-die 421. Among them, the lower V-die 421 is fixedly connected to the press 423, the upper V-die 422 is fixedly connected to the moving part of the press 423, and the grabbing part 22 clamps the tailstock blank 6 and sends it between the lower V-die 421 and the upper V-die 422. The length direction of the tailstock blank 6 is consistent with the length direction of the two, and the cross-sections of the two are similar to the cross-sections of the finished tailstock 7; the press 423 drives the upper V-die 422 to move toward the lower V-die 421, and the tailstock blank 6 is placed on the top of the lower V-die 421. The bottom of the upper V-die 422 first applies pressure to it, so that its two sides are tightly bent and gradually fit the two side surfaces of the lower V-die 421, until the distance between the upper V-die 422 and the lower V-die 421 is the thickness of the tailstock blank 6, thereby forming a finished tailstock 7 with bent sides.

[0055] Furthermore, the palletizing assembly 5 includes a palletizing tray 52 for placing the finished product tailstock 7 and a moving trolley 51 for moving the palletizing tray 52 .

[0056] Specifically, the stacking pallet 52 is located in the working range of the robot 21. The robot 21 places the finished tail rack 7 on the top surface of the stacking pallet 52 through the grabbing part 22 and stacks it along the height direction. After the stacking pallet 52 stacks a specified number of finished tail racks 7, the mobile cart 51 moves it to the next workstation for the next process.

[0057] Example 2

[0058] like Figure 9 As shown, the second embodiment is a processing method for producing a finished tailstock 7 using the first embodiment, which includes the following steps:

[0059] S1: Align the length direction of the tailstock blank 6 with the moving direction of the loading assembly 1 and stack them. The loading assembly 1 moves the tailstock blank 6 to the operating range of the conveying assembly 2.

[0060] Specifically, when the bottom infrared sensor of the loading assembly 1 detects that the number of tail stock blanks 6 thereon is zero, the tail stock blank 6 of the previous process is stacked on the loading assembly 1 from the left end of the loading assembly 1; when the top infrared sensor of the loading assembly 1 detects that the height of the tail stock blank 6 thereon is the specified height, the loading assembly 1 moves the tail stock blank 6 to the right to the operating range of the conveying assembly 2, wherein the total height of the tail stock blank 6 is equal to the number of tail stock blanks 6 multiplied by its own thickness; wherein the length direction of the tail stock blank 6 is consistent with the moving direction of the loading assembly 1, so that during the process of the loading assembly 1 moving it to the right, the positional relationship between the tail stock blank 6 and the loading assembly 1 is always determined, thereby facilitating the subsequent conveying assembly 2 to clamp the tail stock blank 6.

[0061] S2: The transport component 2 moves the tailstock blank 6 from the loading component 1 to the positioning component 3 , and the positioning component 3 adjusts and fixes the horizontal position of the tailstock blank 6 relative to the pressing component 4 .

[0062] Specifically, when the loading component 1 moves to the rightmost side and enters the operating range of the conveying component 2, the infrared sensor located on the rightmost side of the loading component 1 controls the conveying component 2 to clamp the tailstock blank 6 along the length direction of the tailstock blank 6, and then changes its posture relative to the loading component 1 through translation or multi-angle rotation, and places it into the operating range of the positioning component 3 to adjust its horizontal position, and then adjusts its horizontal position relative to the profiling component 4, so as to facilitate the subsequent conveying component 2 to place it into the profiling component 4.

[0063] S3: The transport component 2 moves the positioned tailstock blank 6 to the press component 4 and applies lubricating oil to form a single-sided smooth tailstock blank 6. The press component 4 bends and deforms both sides of the single-sided smooth tailstock blank 6 to form a V-shaped finished tailstock 7.

[0064] Specifically, when the sensor detects that the position of the tail stock blank 6 is fixed relative to the positioning component 3, the transport component 2 determines the movement trajectory of the tail stock blank 6 according to the relative position between the positioning component 3 and the pressing component 4, and then grabs the tail stock blank 6 and moves it relative to the component for applying lubricating oil in the pressing component 4, and then applies lubricating oil to its bottom surface to reduce the friction of its bottom surface; secondly, the transport component 2 accurately delivers the tail stock blank 6 with a smooth bottom surface into the operating range of the bending part 42, and ensures the relative position accuracy between the length direction of the tail stock blank 6 and the bending part 42, so that the two side edges of the finished tail stock 7 are bent at the same angle to ensure its molding quality.

[0065] S4: The transport assembly 2 moves the finished product tailstock 7 to the palletizing assembly 5 and stacks the finished product in the height direction.

[0066] Specifically, when the sensor detects that the bending part 42 has completed bending and is fixed, the moving parts in the bending part 42 separate up and down and return to the initial state. The handling component 2 moves the finished tail frame 7 to the stacking trolley for stacking. The stacking direction is stacking along the height direction. At this point, the handling component 2 connects the loading component 1, positioning component 3, pressing component 4 and stacking component 5 in series to form a complete tail frame automated production line, thereby improving production efficiency.

[0067] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0068] The technology, shape, and structure not described in detail in the present invention are all well-known technologies.

Claims

1. An automatic bending device for a tailstock for a forklift, the automatic bending device being used to bend a tailstock blank (6) into a finished tailstock (7), characterized in that: The automatic bending device comprises: a movable loading component (1), a conveying component (2), a positioning component (3), a pressing component (4), and a palletizing component (5); The transport assembly (2) is arranged on a moving route of the feeding assembly (1), and the transport assembly (2) is capable of transporting the tailstock blank (6) or the finished tailstock (7), so as to connect the feeding assembly (1), the positioning assembly (3), the pressing assembly (4) and the palletizing assembly (5) in series to form a production line; The positioning assembly (3) includes left and right positioning members (34) and front and rear positioning members (35), and the left and right positioning members (34) and the front and rear positioning members (35) are capable of adjusting the horizontal position of the tailstock blank (6) relative to the profiling assembly (4); The press assembly (4) includes a bending part (42) for forming a V-shaped groove to bend the tailstock blank (6).

2. The automatic bending device according to claim 1, characterized in that: The feeding assembly (1) comprises: A plurality of loading slide rails (11) placed horizontally and parallel to each other, one end of each loading slide rail (11) being arranged within the operating range of the transport assembly (2); and A loading tray (12) is provided for placing the tailstock blank (6), and the loading tray (12) is movable along the loading slide rail (11).

3. The automatic bending device according to claim 1, characterized in that: The transport assembly (2) comprises: a gripping member (22) for gripping and fixing the tailstock blank (6) or the finished tailstock (7); and a robot (21) for driving the gripping member (22) to move within a spatial range, wherein the operation trajectory of the robot (21) intersects with the operation trajectory of the loading assembly (1) and the operation trajectory of the positioning assembly (3), or intersects with the operation trajectory of the positioning assembly (3) and the operation trajectory of the pressing assembly (4), or intersects with the operation trajectory of the pressing assembly (4) and the operation trajectory of the stacking assembly (5).

4. The automatic bending device according to claim 3, characterized in that: The grasping member (22) includes a bracket (221) connected to a moving end of the robot (21), and the bracket (221) is connected to a plurality of electromagnets (222) and a plurality of proximity switches (223) along a length direction. When the proximity switches (223) contact the tailstock blank (6) or the finished tailstock (7), the electromagnets (222) are energized to grasp the tailstock blank (6) or the finished tailstock (7); The length direction of the bracket (221) is consistent with the length direction of the tailstock blank (6) or the finished tailstock (7), and the longitudinal center plane of the bracket (221) is coplanar with the longitudinal center plane of the tailstock blank (6) or the finished tailstock (7).

5. The automatic bending device according to claim 1, characterized in that: The positioning component (3) further comprises: A support frame (31) for supporting the left and right positioning members (34) and the front and rear positioning members (35), wherein the front and rear positioning members (35) are axially symmetrical, and the symmetry plane of the front and rear positioning members (35) is a central plane B in a vertical moving direction; At least two positioning plates (32) are symmetrically arranged on the top of the front and rear positioning members (35), the symmetry plane of the positioning plates (32) being the center plane B, and the positioning plates (32) can approach each other along the moving direction of the front and rear positioning members (35) to drive the longitudinal center plane of the tailstock blank (6) to be coplanar with the center plane B; A ball (33) is arranged on the top surface of the positioning plate (32), and the ball (33) rolls freely relative to the top surface of the positioning plate (32). The surface of the ball (33) is tangent to the bottom surface of the tailstock blank (6).

6. The automatic bending device according to claim 5, characterized in that: The front and rear positioning members (35) include a centering member (352) for driving the positioning plates (32) to move toward each other, and limiting columns (351) are provided at both ends of the positioning plates (32) along the moving direction of the centering member (352), and the surfaces of the limiting columns (351) can be tangent to the side surfaces of the tailstock blank (6), and the surfaces of the limiting columns (351) can roll relative to the side surfaces of the tailstock blank (6); and The left and right positioning members (34) include a plurality of fixed plates (341) and movable plates (342) arranged on opposite sides of the positioning plate (32); the fixed plates (341) are fixed relative to the front and rear positioning members (35); the movable plates (342) are movable relative to the front and rear positioning members (35); the moving direction of the movable plates (342) is perpendicular to the moving direction of the positioning plates (32); and the movable plates (342) are capable of pushing the tailstock blank (6) close to the fixed plates (341).

7. The automatic bending device according to claim 1, characterized in that: The profiling assembly (4) further includes a lubricating member (41), the lubricating member (41) including a container (412) for containing lubricating oil and a roller brush (411) that rolls relative to the side wall of the container (412), the side of the roller brush (411) being able to contact the lubricating oil, and the transport assembly (2) being able to grasp the tailstock blank (6) and be tangent to the side of the roller brush (411) to drive the roller brush (411) to roll.

8. The automatic bending device according to claim 7, characterized in that: The bending part (42) comprises: A lower V-die (421) and an upper V-die (422) that match each other, wherein the cross-sections of the lower V-die (421) and the upper V-die (422) are both the cross-sections of the finished tailstock (7), and the tailstock blank (6) is placed on the top surface of the lower V-die (421); and A press (423) is used to drive the upper V-die (422) to move, and the press (423) drives the bottom surface of the upper V-die (422) to approach the top surface of the lower V-die (421) to bend the two side plates of the tailstock blank (6) to form the finished tailstock (7).

9. The automatic bending device according to claim 1, characterized in that: The stacking assembly (5) comprises a stacking tray (52) for placing the finished product tail frame (7) and a moving trolley (51) for moving the stacking tray (52).

10. A processing method based on the automatic bending device according to any one of claims 1 to 9, characterized in that: The processing method comprises the following steps: S1: Align the length direction of the tailstock blank with the moving direction of the loading assembly and stack them. The loading assembly moves the tailstock blank to the operating range of the handling assembly; S2: The transport assembly moves the tailstock blank from the loading assembly to the positioning assembly, and the positioning assembly adjusts and fixes the horizontal position of the tailstock blank relative to the pressing assembly; S3: The handling component moves the positioned tailstock blank to the pressing component and applies lubricating oil to form a single-sided smooth tailstock blank. The pressing component bends and deforms both sides of the single-sided smooth tailstock blank to form a V-shaped finished tailstock; S4: The handling component moves the finished product tail frame to the palletizing component and stacks it in the height direction.

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