Automatic feeding mechanism of thermal forming stamping device

Abstract

The invention provides an automatic feeding mechanism of a hot forming stamping device, and belongs to the technical field of hot stamping forming, the automatic feeding mechanism comprises a base table and a manipulator mechanism, the base table is provided with a distance adjusting mechanism, and the distance adjusting mechanism comprises two ball screws, two symmetrical nut seats, two movable plates and a driving motor; the two movable plates are each provided with two quantitative clamping mechanisms, each quantitative clamping mechanism comprises a fixing frame fixedly connected with the corresponding movable plate, a first cavity and a second cavity are formed in each fixing frame, and a compression spring and a first positioning block are installed in each first cavity; and an electric push rod, a lifting block and a second positioning block are mounted in the second cavity. The distance between the two positioning blocks can be adjusted through an electric push rod of the positioning clamping mechanism, so that adjustment is conducted according to the thickness of a plate, it is guaranteed that one layer of plate is carried every time, excessive manual operation is not needed, multiple plates cannot be stacked for feeding, and the quality and efficiency of plate thermal forming stamping are guaranteed.

Description

Technical Field

[0001] The invention mainly relates to the technical field of hot stamping forming, and in particular to an automatic feeding mechanism of a hot stamping forming device. Background Art

[0002] The hot forming (i.e. hot stamping) process is a process in the automotive sheet metal parts stamping industry where ultra-high-strength steel plates are heated to the austenite temperature range in a heating furnace. After the steel plate structure has changed, it is quickly moved to the mold and stamped quickly. Under the pressure holding state of the press, the parts are quenched and cooled through the cooling circuit arranged in the mold to ensure a certain cooling speed, and finally ultra-high-strength stamped parts are obtained.

[0003] The hot forming press line is equipped with a heating furnace for heating the sheet at the beginning of the line. The heating temperature of the sheet is also around 1000℃, which leads to a bad working environment and great safety hazards. Therefore, more and more hot forming press lines are beginning to choose to use automatic loading and unloading equipment.

[0004] Half of the existing loading and unloading equipment uses a special loading robot to move the heated sheet metal into the press mold. The speed axis structure of the loading and unloading is similar. However, since the sheet metal is large and it is easy for the sheet metal to stick together, resulting in incorrect sheet metal thickness, the robot is prone to stacking multiple sheets for loading, which is prone to errors. Summary of the invention

[0005] The present invention mainly provides an automatic feeding mechanism of a hot forming stamping device to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] An automatic feeding mechanism of a hot forming stamping device comprises a base and a manipulator mechanism, the manipulator mechanism is connected to the base, one side of the base is provided with two sliding grooves, the base is provided with a distance adjustment mechanism, the distance adjustment mechanism comprises two ball screws rotatably connected in the two sliding grooves, two nut seats symmetrically slidably mounted on the two ball screws, two movable plates mounted on the two nut seats, and a driving motor mounted on the back of the base for driving the ball screws;

[0008] Two quantitative clamping mechanisms are installed on the two movable plates, and the quantitative clamping mechanisms include a fixed frame fixedly connected to the movable plate, a first cavity and a second cavity are arranged in the fixed frame, an opening is arranged on the inner side of the first cavity, a lifting groove communicating with the second cavity is arranged on the inner side of the fixed frame, a compression spring and a limiting block are installed in the first cavity of the fixed frame, a first positioning block of a wedge is installed on one side of the limiting block, an electric push rod is installed in the second cavity of the fixed frame, a lifting block is installed on the output shaft of the electric push rod, and a second positioning block is connected to the outer side of the lifting block.

[0009] Furthermore, in the present invention, the manipulator mechanism includes a base, a hydraulic motor mounted on the base, an electric drive linear module mounted on the hydraulic motor, and a connecting arm mounted on a driving block of the electric drive linear module.

[0010] Furthermore, in the present invention, a connecting plate is installed at the bottom of the end of the connecting arm, and a docking plate is installed at the center of one side of the driving motor of the base, and the connecting plate and the docking plate are connected by a plurality of fixing bolts.

[0011] Furthermore, in the present invention, a cavity is provided between the two sliding grooves, the two ball screws are both inserted into the cavity, and a driven bevel gear is installed at one end of the inner side of the two ball screws, the output shaft of the drive motor is inserted into the cavity and a driving bevel gear is installed, and the driving bevel gear is meshed with the two driven bevel gears.

[0012] Furthermore, in the present invention, T-shaped sliding grooves are arranged on the bases on both sides of the two sliding grooves, and T-shaped sliding blocks sliding inside the T-shaped sliding grooves are arranged on the bottoms on both sides of the two movable plates.

[0013] Furthermore, in the present invention, a plurality of connecting square grooves are provided on both sides of the movable plate, a connecting square block is provided at the bottom of the fixing frame, and the fixing frame and the movable plate are fixed by inserting the connecting square blocks into the connecting square grooves and then passing through the mounting bolts and nuts.

[0014] Furthermore, in the present invention, the second positioning block is a circular structure, and the second positioning block is sleeved on the outside of the fixing frame and slides.

[0015] Furthermore, in the present invention, two fixed shafts are installed in the first cavity of the fixed frame, and each quantitative clamping mechanism includes two compression springs, and one end of the two compression springs is respectively sleeved on the two fixed shafts.

[0016] Furthermore, in the present invention, a non-slip rubber pad is embedded and installed on one side of the first positioning block and the second positioning block close to each other.

[0017] Furthermore, in the present invention, the width of the opening of the first cavity of the fixing frame is smaller than the internal width, and the width of the limiting block is adapted to the internal width of the first cavity.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention can adapt to plates of different widths through the distance adjustment mechanism, so that the plates are located between the two fixed frames when being loaded for hot forming stamping, and the electric push rod of the positioning and clamping mechanism can adjust the distance between the first positioning block and the second positioning block, so as to adjust according to the thickness of the plate to ensure that one layer of plate is transported each time, and at the same time, through the structural design of the first positioning block, the plate can be smoothly clamped between the first positioning block and the second positioning block, and finally the automatic loading is completed by the manipulator mechanism, without excessive manual operation and without stacking multiple plates for loading, thereby ensuring the quality and efficiency of the hot forming stamping of the plate.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0023] Figure 3 It is a schematic diagram of the overall structure (cross-section of the base cavity area) of the present invention;

[0024] Figure 4 It is a schematic diagram of the movable plate structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the quantitative clamping mechanism of the present invention;

[0026] Figure 6 It is a schematic cross-sectional view of the quantitative clamping mechanism structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the manipulator mechanism of the present invention.

[0028] In the figure: 10, base; 11, sliding groove; 12, T-shaped sliding groove; 13, docking plate; 20, distance adjustment mechanism; 21, driving motor; 22, movable plate; 221, connecting square groove; 23, ball screw; 24, nut seat; 25, active bevel gear; 26, driven bevel gear; 27, T-shaped slider; 30, quantitative clamping mechanism; 31, fixed frame; 311, lifting groove; 32, first positioning block; 33, second positioning block; 34, electric push rod; 35, lifting block; 36, limiting block; 37, compression spring; 38, anti-slip rubber pad; 39, connecting block; 40, manipulator mechanism; 41, hydraulic motor; 42, electric drive linear module; 43, connecting arm; 44, connecting plate; 45, base. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] For examples, please refer to the attached Figure 1-7 , an automatic feeding mechanism of a hot forming stamping device, comprising a base 10 and a manipulator mechanism 40, the manipulator mechanism 40 is connected to the base 10, one side of the base 10 is provided with two sliding grooves 11, the base 10 is provided with a distance adjustment mechanism 20, the distance adjustment mechanism 20 comprises two ball screws 23 rotatably connected in the two sliding grooves 11, two nut seats 24 symmetrically slidably mounted on the two ball screws 23, two movable plates 22 mounted on the two nut seats 24, and a driving motor 21 mounted on the back of the base 10 for driving the ball screw 23;

[0033] Two quantitative clamping mechanisms 30 are installed on the two movable plates 22, and the quantitative clamping mechanisms 30 include a fixing frame 31 fixedly connected to the movable plate 22, a first cavity and a second cavity are arranged in the fixing frame 31, an opening is arranged on the inner side of the first cavity, a lifting groove 311 which is connected with the second cavity is arranged on the inner side of the fixing frame 31, a compression spring 37 and a limiting block 36 are installed in the first cavity of the fixing frame 31, a first positioning block 32 of a wedge is installed on one side of the limiting block 36, an electric push rod 34 is installed in the second cavity of the fixing frame 31, a lifting block 35 is installed on the output shaft of the electric push rod 34, and a second positioning block 33 is connected to the outer side of the lifting block 35.

[0034] It should also be noted that the electrical components of this device are all externally powered and electrically connected to a conventional PLC controller.

[0035] For details, please refer to the attached Figure 7 The manipulator mechanism 40 includes a base 45, a hydraulic motor 41 mounted on the base 45, an electric drive linear module 42 mounted on the hydraulic motor 41, and a connecting arm 43 mounted on a driving block of the electric drive linear module 42;

[0036] It should be noted that in this embodiment, the hydraulic motor 41 and the electric-driven linear module 42 can both be models used in conventional robotic arms. The device can be fixed by the base 45, the lifting and rotation can be achieved by the hydraulic motor 41, and the extension of the connecting arm 43 can be achieved by the electric-driven linear module 42, so that the base 10 can carry out multi-directional transportation of panels.

[0037] For details, please refer to the attached Figure 7 and attached Figure 1 A connecting plate 44 is installed at the bottom of the end of the connecting arm 43, and a docking plate 13 is installed at the center of one side of the driving motor 21 of the base 10, and the connecting plate 44 and the docking plate 13 are connected by a plurality of fixing bolts;

[0038] It should be noted that, in the present embodiment, the manipulator mechanism 40 and the base 10 can be disassembled and assembled by removing a plurality of fixing bolts, thereby facilitating disassembly for maintenance.

[0039] For details, please refer to the attached Figure 3 A cavity is provided between the two sliding grooves 11, and the two ball screws 23 are both inserted into the cavity, and a driven bevel gear 26 is installed at one end of the inner side of the two ball screws 23, and the output shaft of the driving motor 21 is inserted into the cavity and is installed with a driving bevel gear 25, and the driving bevel gear 25 is meshed with the two driven bevel gears 26;

[0040] It should be noted that, in this embodiment, through the operation of the driving motor 21, the active bevel gear 25 can be engaged with the driven bevel gear 26 for transmission, so that the two ball screws 23 rotate synchronously and in opposite directions, so that the movable plates 22 on the nut seat 24 move away from or close to each other, thereby adapting to plates of different widths and increasing the adaptability of the device.

[0041] For details, please refer to the attached Figure 2 , T-shaped slide grooves 12 are provided on the base 10 on both sides of the two slide grooves 11, and T-shaped sliders 27 sliding inside the T-shaped slide grooves 12 are provided at the bottom of both sides of the two movable plates 22;

[0042] It should be noted that, in the present embodiment, when the movable plate 22 is displaced, the T-shaped sliding block 27 can slide inside the T-shaped sliding groove 12 , so that the two sides of the movable plate 22 can move more stably.

[0043] For details, please refer to the attached Figure 4 and attached Figure 5 , a plurality of connecting square grooves 221 are provided on both sides of the movable plate 22, and a connecting block 39 is provided at the bottom of the fixing frame 31, and the fixing frame 31 and the movable plate 22 are fixed by inserting the connecting square grooves 221 through the connecting block 39 and then passing through the mounting bolts and nuts;

[0044] It should be noted that, in this embodiment, the fixed frame 31 and the movable plate 22 can be disassembled and assembled by inserting the connecting block 39 into the connecting square groove 221 and installing the bolts and nuts, so that the position of the quantitative clamping mechanism 30 can be replaced, and the distance between the two quantitative clamping mechanisms 30 on the same side can be adjusted to ensure that the quantitative clamping mechanism 30 can firmly clamp the plate that is allowed to be hot-formed and stamped.

[0045] For details, please refer to the attached Figure 5 The second positioning block 33 is a return-shaped structure, and the second positioning block 33 is sleeved on the outside of the fixing frame 31 and slides;

[0046] It should be noted that, in this embodiment, the structure of the second positioning block 33 can make it slide more stably outside the fixing frame 31, so that the distance between it and the first positioning block 32 is adjusted to adapt to plates of different thicknesses.

[0047] For details, please refer to the attached Figure 6 Two fixed shafts are installed in the first cavity of the fixed frame 31, and each quantitative clamping mechanism 30 includes two compression springs 37, and one end of the two compression springs 37 is respectively sleeved on the two fixed shafts;

[0048] It should be noted that, in this embodiment, the two compression springs 37 make the rebound of the first positioning block 32 more stable.

[0049] For details, please refer to the attached Figure 5 The first positioning block 32 and the second positioning block 33 are both embedded with anti-slip rubber pads 38 on one side close to each other;

[0050] It should be noted that, in this embodiment, the anti-skid rubber pad 38 can increase the friction resistance, so that the first positioning block 32 and the second positioning block 33 can clamp the plate more stably.

[0051] Further, in the present invention, the width of the opening of the first cavity of the fixing frame 31 is smaller than the internal width, and the width of the limiting block 36 is adapted to the internal width of the first cavity;

[0052] It should be noted that, in this embodiment, the limiting block 36 can be prevented from being separated from the first cavity of the fixing frame 31 .

[0053] The specific operation mode of the present invention is as follows:

[0054] The base 10 can be moved to a suitable area to clamp the plate by the manipulator mechanism 40. When the base 10 is located in the top area of ​​the plate, the spacing between the movable plates 22 on both sides can be adjusted by the width of the plate. The driving motor 21 can be operated to make the active bevel gear 25 mesh with the driven bevel gear 26 to rotate, so that the ball screws 23 on both sides rotate synchronously and in opposite directions, so that the movable plates 22 on the nut seat 24 move away from or close to each other. Then the base 10 descends, so that the plate enters between the fixed frames 31 on both sides. At the same time, the electric push rod 34 operates, so that the lifting block 35 drives the second positioning block 33 to move, so that the second positioning block 33 and the first positioning block 32 The spacing between them matches the thickness of the plate, and then the base 10 continues to be lowered. When the plate contacts the first positioning block 32, since the first positioning block 32 is a wedge structure, as the plate rises, the first positioning block 32 will retract until the plate contacts the second positioning block 33. At this time, the first positioning block 32 does not contact the side of the plate, and will be ejected by the compression spring 37, so that the plate is fixed between the first positioning block 32 and the second positioning block 33. Then the manipulator mechanism 40 continues to operate to complete the transportation of a single plate. When it is transported to the unloading location, the drive motor 21 operates again to make the movable plates 22 on both sides move away from each other and put down the plate.

[0055] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An automatic feeding mechanism of a hot forming stamping device, comprising a base (10) and a manipulator mechanism (40), characterized in that: The manipulator mechanism (40) is connected to a base (10), one side of the base (10) is provided with two sliding grooves (11), and a distance adjustment mechanism (20) is provided on the base (10), the distance adjustment mechanism (20) comprises two ball screws (23) rotatably connected in the two sliding grooves (11), two nut seats (24) symmetrically slidably mounted on the two ball screws (23), two movable plates (22) mounted on the two nut seats (24), and a driving motor (21) mounted on the back of the base (10) for driving the ball screws (23); Two quantitative clamping mechanisms (30) are installed on the two movable plates (22). The quantitative clamping mechanisms (30) include a fixed frame (31) fixedly connected to the movable plate (22). A first cavity and a second cavity are arranged in the fixed frame (31). An opening is arranged on the inner side of the first cavity. A lifting groove (311) which is connected to the second cavity is arranged on the inner side of the fixed frame (31). A compression spring (37) and a limiting block (36) are installed in the first cavity of the fixed frame (31). A first positioning block (32) of a wedge is installed on one side of the limiting block (36). An electric push rod (34) is installed in the second cavity of the fixed frame (31). A lifting block (35) is installed on the output shaft of the electric push rod (34). The outer side of the lifting block (35) is connected to a second positioning block (33).

2. The automatic feeding mechanism of a hot forming stamping device according to claim 1, characterized in that: The manipulator mechanism (40) comprises a base (45), a hydraulic motor (41) mounted on the base (45), an electric drive linear module (42) mounted on the hydraulic motor (41), and a connecting arm (43) mounted on a driving block of the electric drive linear module (42).

3. The automatic feeding mechanism of the hot forming stamping device according to claim 2, characterized in that: A connecting plate (44) is installed at the bottom of the end of the connecting arm (43), and a docking plate (13) is installed at the center of one side of the driving motor (21) of the base (10). The connecting plate (44) and the docking plate (13) are connected by a plurality of fixing bolts.

4. The automatic feeding mechanism of the hot forming stamping device according to claim 1, characterized in that: A cavity is provided between the two sliding grooves (11), the two ball screws (23) both penetrate into the cavity, and a driven bevel gear (26) is installed at one end of the inner side of the two ball screws (23), the output shaft of the drive motor (21) penetrates into the cavity and is installed with a driving bevel gear (25), and the driving bevel gear (25) is meshed with the two driven bevel gears (26).

5. The automatic feeding mechanism of the hot forming stamping device according to claim 1, characterized in that: T-shaped sliding grooves (12) are arranged on the base (10) on both sides of the two sliding grooves (11), and T-shaped sliding blocks (27) are arranged on the bottom of both sides of the two movable plates (22) and slide inside the T-shaped sliding grooves (12).

6. The automatic feeding mechanism of the hot forming stamping device according to claim 1, characterized in that: A plurality of connecting square grooves (221) are provided on both sides of the movable plate (22), a connecting square block (39) is provided at the bottom of the fixing frame (31), and the fixing frame (31) and the movable plate (22) are inserted into the connecting square grooves (221) through the connecting square blocks (39) and then fixed by passing through mounting bolts and nuts.

7. The automatic feeding mechanism of the hot forming stamping device according to claim 1, characterized in that: The second positioning block (33) is a circular structure, and the second positioning block (33) is sleeved on the outside of the fixing frame (31) to slide.

8. The automatic feeding mechanism of a hot forming stamping device according to claim 1, characterized in that: Two fixed shafts are installed in the first cavity of the fixed frame (31), and each quantitative clamping mechanism (30) comprises two compression springs (37), one end of the two compression springs (37) is respectively sleeved on the two fixed shafts.

9. The automatic feeding mechanism of a hot forming stamping device according to claim 1, characterized in that: The first positioning block (32) and the second positioning block (33) are both inlaid with anti-slip rubber pads (38) on one side close to each other.

10. The automatic feeding mechanism of a hot forming stamping device according to claim 1, characterized in that: The width of the opening of the first cavity of the fixing frame (31) is smaller than the internal width, and the width of the limiting block (36) is adapted to the internal width of the first cavity.

Images