Thermal forming material sheet discharging and grabbing tool

Abstract

The utility model relates to the technical field of thermoforming processing equipment, in particular to a thermoforming tablet discharging and grabbing tool. The grabbing tool comprises a mounting frame, a plurality of mechanical grippers arranged on the mounting frame, and a first pressing rod arranged on the mounting frame, wherein the mechanical grippers are used for grabbing material sheets. And when the mechanical gripper grabs the material sheet, the free end of the first pressing rod downwards presses the end part of the material sheet. When the grabbing tool is used, the free end of the first pressing rod abuts against the upward tilting part of the material piece downwards, the end of the material piece is prevented from tilting upwards, a positioning hole formed in the end of the material piece is prevented from deviating from a preset position, and then it is guaranteed that a positioning pin on a die can be smoothly inserted into the positioning hole; and the situation that the material pieces are scrapped due to the fact that the end parts of the material pieces tilt up is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoforming processing equipment, in particular to a thermoforming sheet discharging and grabbing tool. Background Art

[0002] With the development of automotive industry technology, more and more parts are made of hot-pressed sheets. Hot-pressed sheets need to be manufactured under high temperature conditions, and it is not suitable to take and load materials manually. Therefore, robots are needed to take and load materials on the hot-pressing production line.

[0003] At present, the A-pillar of automobiles is mainly manufactured by hot-pressing plates. After the A-pillar is hot-pressed, the sheet is grabbed by a mechanical gripper, and then the sheet is transferred to the mold by a robot connected to the mechanical gripper for stamping. The mold is provided with a positioning pin. When the robot puts the sheet into the mold, the positioning hole preset on the sheet cooperates with the positioning pin to position the sheet, so as to facilitate stamping of the sheet.

[0004] Since the A-pillar itself is long, the length of the sheet used to be processed into the A-pillar is relatively long, generally up to 2m-2.6m. After the sheet is heated out of the furnace, the uneven temperature dissipation easily causes the end of the sheet to warp upward, thus causing the positioning hole to shift. Even if the robot moves the sheet to the predetermined position, the positioning pin cannot be accurately inserted into the positioning hole on the sheet, affecting the positioning of the sheet, and then causing the sheet to be scrapped. Utility Model Content

[0005] The utility model provides a hot forming sheet discharging and grabbing tool, aiming to solve the problem that the end of the sheet is easy to warp and cause inaccurate positioning.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A thermoforming sheet discharging and grabbing tool comprises a mounting frame and a plurality of mechanical grippers arranged on the mounting frame, wherein the mechanical grippers are used to grab the sheet, and further comprises:

[0008] A first pressure rod, arranged on the mounting frame;

[0009] When the mechanical gripper grasps the blank, the free end of the first pressing rod presses the end of the blank downward.

[0010] By adopting the above scheme, when grabbing the sheet, the free end of the first pressure rod and the upwardly tilted part of the sheet are pressed downward to prevent the end of the sheet from tilting upward, thereby preventing the positioning hole set at the end of the sheet from deviating from the predetermined position, thereby ensuring that the positioning pin on the mold can be smoothly inserted into the positioning hole, completing the positioning of the sheet, and avoiding the scrapping of the sheet due to the tilting of the end of the sheet. In addition, the manufacturing cost and installation difficulty of the first pressure rod are relatively small, avoiding the need to set multiple mechanical claws to prevent the end of the sheet from warping upward, thereby reducing costs.

[0011] The utility model is further configured such that a second pressure rod is provided on the mounting frame, and the second pressure rod can elastically rebound downward. When the mechanical gripper grabs the sheet, the lower end of the second pressure rod contacts the sheet before the free end of the first pressure rod. When grabbing the sheet, the free ends of the first pressure rod and the second pressure rod both press the sheet downward, and the second pressure rod further enhances the flattening effect on the warped part of the sheet. Since the second pressure rod can rebound downward and the second pressure rod contacts the sheet before the first pressure rod, the second pressure rod pre-presses the warped part of the sheet, so that the deformation of the warped part of the sheet is more uniform during the flattening process.

[0012] The utility model is further configured such that the first pressure rod and / or the second pressure rod is made of metal material. The metal material has good rigidity and heat resistance and can well adapt to the working environment corresponding to the thermoformed sheet.

[0013] The utility model is further configured such that the second pressure rod is slidably connected in the first sliding hole, the mounting frame is provided with a mounting seat, the mounting seat is provided with a first sliding hole that runs through the upper and lower sides, the second pressure rod is slidably connected in the first sliding hole, the second pressure rod is connected with a first limit block located on the upper side of the mounting seat and a second limit block located on the lower side of the mounting seat, and an elastic member is commonly connected between the mounting seat and the second limit block. Since an elastic member is provided between the second limit block and the mounting seat, the free end of the second pressure rod is lower than the horizontal height where the free end of the first pressure rod is located. Before the first pressure rod contacts the warped end of the sheet, the second pressure rod pre-presses the warped part of the sheet first, so that the deformation of the warped part of the sheet is more uniform during the flattening process.

[0014] The utility model is further configured to include a guide rod, a second sliding hole for the guide rod to vertically pass through is opened on the mounting seat, the guide rod is slidably connected in the second sliding hole, the upper end of the guide rod is fixedly connected to the first limit block, and the lower end of the guide rod is fixedly connected to the second limit block. The guide rod cooperates with the mounting seat to guide the second pressure rod, thereby improving the stability of the second pressure rod.

[0015] The utility model is further configured such that a first through hole penetrating the upper and lower sides is provided on the first limit block, the guide rod is slidably connected in the first through hole, a first mounting hole is provided on the side of the first limit block, the first mounting hole is connected to the first through hole, and a first adjusting bolt is threadedly connected in the first mounting hole. The guide rod and the first limit block can be fixed together by the first adjusting bolt and the first mounting hole, which is convenient for installation and disassembly. After the first adjusting bolt is out of contact with the guide rod, the position of the first limit block on the second pressure rod can be adjusted, thereby adjusting the height of the horizontal plane where the free end of the second pressure rod is located and adjusting the maximum extension length of the elastic member, so as to adjust the warping degree of the second pressure rod adaptation sheet.

[0016] The utility model is further configured such that a second through hole penetrating the upper and lower sides is provided on the second limit block, the guide rod is slidably connected in the second through hole, a second mounting hole is provided on the side of the second limit block, the second mounting hole is communicated with the second through hole, and a second adjusting bolt is threadedly connected in the second mounting hole. The guide rod and the second limit block can be fixed together by the second adjusting bolt and the second mounting hole, which is convenient for installation and disassembly. After the second adjusting bolt is out of contact with the guide rod, the position of the second limit block on the second pressure rod can be adjusted, thereby adjusting the compression degree of the elastic member in the initial state, thereby adjusting the elastic force of the elastic member on the second limit block.

[0017] The utility model is further configured that the first adjusting bolt and / or the second adjusting bolt is a hexagon socket bolt. The hexagon socket bolt can provide a stable connection during assembly, and the hexagon socket bolt is easy to disassemble and install.

[0018] The utility model is further configured that the mechanical grippers are distributed along the length direction of the sheet. The horizontality of the sheet as a whole can be ensured by a plurality of mechanical grippers, so that the sheet can be accurately put into the mold.

[0019] The utility model is further configured that the mechanical grippers are distributed on both sides of the material sheet along the width direction. Since the mechanical grippers are distributed on both sides of the material sheet along the width direction, when grabbing the material sheet, the levelness of the entire material sheet is further ensured.

[0020] In summary, the utility model provides a thermoforming sheet discharging and grabbing tooling having at least the following features:

[0021] Beneficial effects:

[0022] 1. Prevent the end of the sheet from warping upward, thereby ensuring that the positioning hole at the end of the sheet can be accurately positioned on the positioning pin on the mold.

[0023] 2. Reduce the scrap rate of the sheet.

[0024] 3. Reduce the number of mechanical grippers that need to be set up, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any novel labor.

[0026] Figure 1 is a vertical view of an embodiment (in which the shape and position of the end of the sheet when it is warped upward are indicated by a dotted line);

[0027] Figure 2 is a top view of the embodiment.

[0028] The reference numerals in the figure are: 1. mounting frame, 2. mechanical gripper, 3. claw, 4. first pressure rod, 5. mounting seat, 6. second pressure rod, 7. first limit block, 8. second limit block, 9. elastic member, 10. guide rod, 11. first adjusting bolt, 12. second adjusting bolt, 13. sheet, 14. positioning hole. DETAILED DESCRIPTION

[0029] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-2 The utility model is further described in detail with specific implementation methods.

[0030] See also Figure 1-2The present embodiment provides a thermoforming sheet discharging and grabbing tool, comprising a connected mounting frame 1, on which a plurality of mechanical grippers 2 are arranged. The mechanical grippers 2 are of the prior art, and the mechanical grippers 2 have two claws 3 that can approach each other, and the two claws 3 are distributed on the upper and lower sides of the sheet 13. The upper and lower sides of the sheet 13 can be clamped from the edge of the sheet 13 by the two claws 3. It also includes a first pressure rod 4, which is fixedly connected to the mounting frame 1 and is spaced apart from the mechanical grippers 2. The first pressure rod 4 corresponds to the warped end of the sheet 13. When the two claws 3 clamp the upper and lower sides of the sheet 13 together, the contact surface between the claw 3 located on the upper side of the sheet 13 and the sheet 13 and the lower end surface of the first pressure rod 4 are at the same horizontal height. When grabbing the sheet 13, the lower end of the first pressure rod 4 and the upwardly tilted part of the sheet 13 are pressed downward to prevent the end of the sheet 13 from tilting upward, thereby preventing the positioning hole 14 set at the end of the sheet 13 from deviating from the predetermined position, thereby ensuring that the positioning pin on the mold can be smoothly inserted into the positioning hole 14, completing the positioning of the sheet 13, and avoiding the scrapping of the sheet 13 due to the tilting of the end of the sheet 13. In addition, the manufacturing cost and installation difficulty of the first pressure rod 4 are both relatively low, avoiding the need to set up multiple mechanical grippers 2 to prevent the end of the sheet 13 from warping upward, thereby reducing costs.

[0031] In order to further enhance the flattening effect on the warped part of the sheet 13, further, the mounting frame 1 is provided with a second pressure rod 6, which can elastically rebound downward. In the process of the mechanical gripper 2 grabbing the sheet 13, the lower end of the second pressure rod 6 contacts the sheet 13 before the free end of the first pressure rod 4. The projection of the second pressure rod 6 on the sheet 13 is farther from the warped end of the sheet 13 than the projection of the first pressure rod 4 on the sheet 13, so that the second pressure rod 6 contacts the sheet 13 before the first pressure rod 4. The second pressure rod 6 can adopt an elastic telescopic rod with elastic telescopic function in the prior art to ensure that the second pressure rod 6 can rebound downward to press the sheet 13 downward. In this embodiment, preferably, the mounting frame 1 is fixedly connected with a mounting seat 5, and the mounting seat 5 is spaced apart from the first pressure rod 4. A first sliding hole penetrating the upper and lower sides is opened in the middle of the mounting seat 5, and a second sliding hole penetrating the upper and lower sides is also opened on the mounting seat 5. The second sliding hole is spaced apart from the first sliding hole, and the second pressure rod 6 is slidably connected in the first sliding hole. The second pressure rod 6 is connected with a first limit block 7 located on the upper side of the mounting seat 5 and a second limit block 8 located on the lower side of the mounting seat 5. An elastic member 9 is connected between the mounting seat 5 and the second limit block 8. When the elastic member 9 is at a natural length, the horizontal plane where the free end of the second pressure rod 6 is located is lower than the horizontal plane where the free end of the first pressure rod 4 is located. The elastic member 9 can specifically adopt a spring in the prior art, and the spring is sleeved on the second pressure rod 6. The upper and lower ends of the spring are respectively against the mounting seat 5 and the second limit block 8. When grabbing the sheet 13, the free ends of the first pressure rod 4 and the second pressure rod 6 both push down the sheet 13. The first pressure rod 4 and the second pressure rod 6 are spaced apart on the plane, providing more contact points for the sheet 13, and the second pressure rod 6 further enhances the flattening effect on the warped part of the sheet 13. When in use, since the elastic member 9 is provided between the second limit block 8 and the mounting seat 5, the free end of the second pressure rod 6 is lower than the horizontal height where the free end of the first pressure rod 4 is located. Before the first pressing rod 4 contacts the warped end of the sheet 13 , the second pressing rod 6 pre-presses the warped portion of the sheet 13 , so that the warped portion of the sheet 13 deforms more evenly during the flattening process.

[0032] In order to enhance the stability of the second pressure rod 6, further, it also includes a guide rod 10, which is slidably connected in the second sliding hole, the upper end of the guide rod 10 is fixedly connected to the first limit block 7, and the lower end of the guide rod 10 is fixedly connected to the second limit block 8. The first limit block 7 is provided with a first through hole that runs through both sides of the upper and lower sides, the guide rod 10 is slidably connected in the first through hole, the side of the first limit block 7 is provided with a first mounting hole, the first mounting hole is connected to the first through hole, and the first mounting hole is threadedly connected with a first adjusting bolt 11. The second limit block 8 is provided with a second through hole that runs through both sides of the upper and lower sides, the guide rod 10 is slidably connected in the second through hole, the side of the second limit block 8 is provided with a second mounting hole, the second mounting hole is connected to the second through hole, and the second mounting hole is threadedly connected with a second adjusting bolt 12. The first adjusting bolt 11 and the second adjusting bolt 12 are hexagon socket head bolts. After the first adjusting bolt 11 is disconnected from the guide rod 10, the position of the first limiting block 7 on the second pressure rod 6 can be adjusted, thereby adjusting the height of the horizontal plane where the free end of the second pressure rod 6 is located and adjusting the maximum extension length of the elastic member 9, so as to adjust the warping degree of the second pressure rod 6 to adapt to the sheet 13. After the second adjusting bolt 12 is disconnected from the guide rod 10, the position of the second limiting block 8 on the second pressure rod 6 can be adjusted, thereby adjusting the compression degree of the elastic member 9 in the initial state, thereby adjusting the elastic force of the elastic member 9 on the second limiting block 8.

[0033] Since the sheet 13 is formed by a hot forming process, the temperature is high when the sheet 13 is pushed out. In order to prevent the first pressure rod 4 and the second pressure rod 6 from being damaged at high temperature, further, the first pressure rod 4 and the second pressure rod 6 are both made of metal materials in the prior art. While ensuring the stiffness and heat resistance of the first pressure rod 4 and the second pressure rod 6, other existing materials can also be used as substitutes to adapt to the temperature of the sheet 13 and prevent the first pressure rod 4 and the second pressure rod 6 from being damaged.

[0034] Please continue reading Figure 2 , the mounting frame 1 is fixedly mounted on the robot (the robot is not shown in the figure, the robot is a prior art, and the movable arm of the robot is fixedly connected to the middle of the mounting frame 1), and the mounting frame 1 is driven to a preset position by the robot. A number of mechanical grippers 2 are fixedly connected to the mounting frame 1 at intervals, and the mechanical grippers 2 are distributed along the length direction of the sheet 13, and the mechanical grippers 2 are distributed on both sides of the sheet 13 along the width direction of the sheet 13. The sheet 13 is grasped by multiple mechanical grippers 2, and the number of mechanical grippers 2 can be appropriately increased or decreased according to the length of the sheet 13. In this embodiment, three mechanical grippers 2 are provided, two of which are located on the right side of the sheet 13, and the other mechanical gripper 2 is located on the left side of the sheet. It can ensure the horizontality of the sheet 13 as a whole, so that the sheet 13 can be accurately put into the mold.

[0035] It should be noted that the words indicating direction in this article, such as up and down, are all based on Figure 1 The setting of the direction is only for the convenience of description and has no other specific meaning.

[0036] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A thermoforming sheet discharging and grabbing tool, comprising a mounting frame (1) and a plurality of mechanical grippers (2) arranged on the mounting frame (1), the mechanical grippers (2) being used to grab a sheet (13), characterized in that: Also includes: A first pressure rod (4) is arranged on the mounting frame (1); When the mechanical gripper (2) grasps the sheet (13), the free end of the first pressing rod (4) presses the end of the sheet (13) downward; The mounting frame (1) is provided with a second pressure rod (6), which can elastically rebound downwards. When the mechanical gripper (2) grasps the sheet (13), the lower end of the second pressure rod (6) contacts the sheet (13) before the free end of the first pressure rod (4).

2. A thermoforming sheet discharging and grabbing tool as claimed in claim 1, characterized in that: The first pressure rod (4) and / or the second pressure rod (6) are made of metal material.

3. A thermoforming sheet discharging and grabbing tool as claimed in claim 1 or 2, characterized in that: The mounting frame (1) is provided with a mounting seat (5), the mounting seat (5) is provided with a first sliding hole penetrating through upper and lower sides, the second pressure rod (6) is slidably connected in the first sliding hole, the second pressure rod (6) is connected with a first limiting block (7) located on the upper side of the mounting seat (5) and a second limiting block (8) located on the lower side of the mounting seat (5), and an elastic member (9) is commonly connected between the mounting seat (5) and the second limiting block (8).

4. A thermoforming sheet discharging and grabbing tool as claimed in claim 3, characterized in that: It also comprises a guide rod (10), the mounting seat (5) is provided with a second sliding hole for the guide rod (10) to vertically pass through, the guide rod (10) is slidably connected in the second sliding hole, the upper end of the guide rod (10) is fixedly connected to the first limit block (7), and the lower end of the guide rod (10) is fixedly connected to the second limit block (8).

5. A thermoforming sheet discharging and grabbing tool as claimed in claim 4, characterized in that: The first limit block (7) is provided with a first through hole that passes through the upper and lower sides, the guide rod (10) is slidably connected in the first through hole, a first mounting hole is provided on the side surface of the first limit block (7), the first mounting hole is communicated with the first through hole, and a first adjusting bolt (11) is threadedly connected in the first mounting hole.

6. A thermoforming sheet discharging and grabbing tool as claimed in claim 5, characterized in that: The second limit block (8) is provided with a second through hole that passes through the upper and lower sides, the guide rod (10) is slidably connected in the second through hole, a second mounting hole is provided on the side of the second limit block (8), the second mounting hole is communicated with the second through hole, and a second adjusting bolt (12) is threadedly connected in the second mounting hole.

7. A thermoforming sheet discharging and grabbing tool as claimed in claim 6, characterized in that: The first adjusting bolt (11) and / or the second adjusting bolt (12) are hexagon socket bolts.

8. A thermoforming sheet discharging and grabbing tool as claimed in claim 1, characterized in that: The mechanical grippers (2) are distributed along the length direction of the material sheet (13).

9. A thermoforming sheet discharging and grabbing tool as claimed in claim 8, characterized in that: The mechanical grippers (2) are distributed on both sides of the material sheet (13) along the width direction.

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