Positioning structure of thermoplastic composite material cutting device

Abstract

The utility model relates to thermoplastic composite processing equipment technical field, concretely relates to a kind of positioning structure of thermoplastic composite cutting device, comprising: pedestal and at least one clamping component for clamping thermoplastic composite in the pedestal, the clamping component includes the support plate for supporting thermoplastic composite;Scraper, it is inlaid with the upper end surface of the support plate, the upper end of the support plate is provided with a hollow slot;Negative pressure structure, it is communicated with the hollow slot.The utility model is by setting negative pressure structure in support plate bottom, and hollow slot is opened in support plate, so that negative pressure structure can form local negative pressure field in the upper end surface of support plate by hollow slot, then using first adjusting structure drives scraper reciprocating sliding along the upper end surface of support plate, scrap is physically scraped to hollow slot region and is removed by negative pressure suction after being removed, through the synergistic effect of physical peeling and negative pressure recovery, eliminate positioning accuracy drift from the root.

Description

Technical Field

[0001] This utility model relates to the technical field of thermoplastic composite material processing equipment, and in particular to a positioning structure of a thermoplastic composite material cutting device. Background Technology

[0002] When thermoplastic composite materials (such as SPC and WPC) are cut, the resin matrix softens due to heat, which easily produces adhesive debris, such as ribbon-like chips and granular chips. These chips stubbornly adhere to the clamping surface of the fixture. This adhesion causes the actual positioning position of the workpiece to deviate from the theoretical position. This has a significant impact, especially on thin-walled parts with a thickness of ≤1mm or high-precision parts with high tolerance requirements (such as aerospace honeycomb structural parts). Even a small amount of debris can cause the cutting path deviation to exceed the tolerance by more than 50%, resulting in batch quality defects. Traditional manual wiping or compressed air blowing is difficult to remove oily debris. The reason is that conventional negative pressure dust collection devices are far from the clamping surface and have insufficient adsorption efficiency for micro-debris on the board surface.

[0003] Therefore, there is an urgent need to design a debris removal mechanism integrated inside the clamping component to eliminate positioning accuracy drift at its source through the synergistic effect of physical stripping and negative pressure recovery. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a positioning structure for a thermoplastic composite material cutting device to solve the problem.

[0005] To achieve the above objectives, this utility model provides a positioning structure for a thermoplastic composite material cutting device, comprising:

[0006] A base and at least one clamping assembly disposed on the base for clamping a thermoplastic composite material, the clamping assembly including a support plate for supporting the thermoplastic composite material;

[0007] A scraper is attached to the upper surface of the support plate, and the upper end of the support plate is provided with a hollow groove.

[0008] A negative pressure structure, which is connected to the hollow groove, is used to form a negative pressure on the upper end surface of the support plate through the hollow groove to adsorb debris.

[0009] The first adjustment structure is used to drive the scraper to slide back and forth along the upper end face of the support plate to scrape the debris attached to the upper end face of the support plate to the hollow groove so that it can be removed by negative pressure adsorption.

[0010] As a preferred embodiment of this invention, the clamping assembly further includes:

[0011] The first connecting plate has one end fixedly connected to the base;

[0012] A pressure plate is disposed above the support plate, and a clamping space for clamping thermoplastic composite material is formed between the bottom end face of the pressure plate and the upper end face of the support plate.

[0013] The second adjustment structure is used to control the lifting and locking of the pressure plate.

[0014] As a preferred embodiment of this invention, the second adjustment structure includes:

[0015] The second connecting plate is fixedly connected to the first connecting plate;

[0016] The first lead screw engages with a first lead screw groove formed on the surface of the second connecting plate;

[0017] A fixed base, one end of which is rotatably connected to the first lead screw, and the other end of which is fixedly connected to the upper end of the pressure plate;

[0018] The guide rod has one end fixedly connected to the upper end of the pressure plate, and the other end slidably engaged with the guide groove formed on the surface of the second connecting plate.

[0019] As a preferred embodiment of this utility model, the first adjustment structure includes:

[0020] The first slider has one end fixedly connected to the scraper, and the other end slidably engaged with the first groove formed on the surface of the first connecting plate.

[0021] The second lead screw has one end rotatably disposed in the first slide groove, and the other end is adapted to the second lead screw groove formed on the surface of the first slider.

[0022] As a preferred embodiment of this utility model, the positioning structure further includes:

[0023] A chip collection box with an opening at the top is detachably mounted at the bottom of a support plate. The chip collection box has an air hole at its bottom relative to the opening. The chip collection box and the support plate together form a cavity. The hollowed-out groove and the air hole communicate with the cavity.

[0024] A fan, which acts as a negative pressure structure, is installed at the bottom of the chip collection box, opposite to the opening.

[0025] As a preferred embodiment of this utility model, the positioning structure further includes:

[0026] The second slider is located at the bottom of the chip collection box;

[0027] A bracket, located at the upper end of the base, is used to support the bottom of the chip collection box. The bracket has a second sliding groove adapted to the second slider.

[0028] A knob, which is rotatably mounted on the bracket and at the end of the second slide groove, is used to release or lock the second slider's degree of freedom of movement relative to the second slide groove.

[0029] As a preferred embodiment of this utility model, positioning holes are provided at the corners of the base.

[0030] As a preferred embodiment of this utility model, the clamping components are two in number and symmetrically arranged on the base.

[0031] The beneficial effects of this utility model are as follows: By setting a negative pressure structure at the bottom of the support plate and opening a hollow groove on the support plate, the negative pressure structure can form a local negative pressure field on the upper surface of the support plate through the hollow groove. Then, the first adjustment structure drives the scraper to slide back and forth along the upper surface of the support plate, physically scraping the debris to the hollow groove area and removing it by negative pressure adsorption. Through the synergistic effect of physical peeling and negative pressure recovery, the positioning accuracy drift is eliminated from the root, and the positioning effect of the positioning structure is maintained. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0035] Figure 3 This is a three-dimensional structural diagram of the bottom of the chip collection box of this utility model;

[0036] Figure 4 This is a three-dimensional structural diagram of the first connecting plate, the first slider, and the scraper of this utility model.

[0037] The following are marked in the diagram: 1. Base; 2. First connecting plate; 3. Support plate; 4. Second connecting plate; 5. First lead screw; 6. First lead screw groove; 7. Fixed seat; 8. Pressure plate; 9. Guide rod; 10. Guide groove; 11. Hollow groove; 12. Scraper; 13. First slider; 14. First slide groove; 15. Second lead screw groove; 16. Second lead screw; 17. Chip collection box; 18. Second slider; 19. Bracket; 20. Second slide groove; 21. Knob; 22. Air hole; 23. Fan; 24. Positioning hole. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0039] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] like Figure 1 and Figure 2 As shown, a positioning structure for a thermoplastic composite material cutting device includes: a base 1 and at least one clamping assembly disposed on the base 1 for clamping the thermoplastic composite material. The clamping assembly includes a support plate 3 for supporting the thermoplastic composite material; a scraper 12 that is in contact with the upper end face of the support plate 3, and a hollow groove 11 is provided at the upper end of the support plate 3; a negative pressure structure that is connected to the hollow groove 11 for forming a negative pressure on the upper end face of the support plate 3 through the hollow groove 11 to absorb debris; and a first adjustment structure for driving the scraper 12 to slide back and forth along the upper end face of the support plate 3 to scrape the debris attached to the upper end face of the support plate 3 to the hollow groove 11 so that it can be absorbed and removed by the negative pressure.

[0041] The above technical solution can effectively clean the debris on the support plate 3. When cleaning is required, the negative pressure structure is activated, and a local negative pressure field is formed on the upper surface of the support plate 3 through the hollow groove 11. Then, the first adjustment structure drives the scraper 12 to slide back and forth along the upper surface of the support plate 3, physically scraping the debris into the hollow groove 11 area, where it is then adsorbed and removed by the negative pressure. Through the synergistic effect of physical peeling and negative pressure recovery, the positioning accuracy drift is eliminated from the root, and the positioning effect of the positioning structure is maintained.

[0042] like Figure 2As shown, in this embodiment, the clamping assembly further includes: a first connecting plate 2, one end of which is fixedly connected to the base 1; a pressure plate 8, which is disposed above the support plate 3, and a clamping space for clamping thermoplastic composite material is formed between the bottom end surface of the pressure plate 8 and the upper end surface of the support plate 3; and a second adjustment structure, which is used to control the lifting and locking of the pressure plate 8. Specifically, the second adjustment structure includes: a second connecting plate 4, which is fixedly connected to the first connecting plate 2; a first lead screw 5, which cooperates with a first lead screw groove 6 opened on the surface of the second connecting plate 4; a fixed seat 7, one end of which is rotatably connected to the first lead screw 5, and the other end of which is fixedly connected to the upper end of the pressure plate 8; and a guide rod 9, one end of which is fixedly connected to the upper end of the pressure plate 8, and the other end of which is slidably cooperates with a guide groove 10 opened on the surface of the second connecting plate 4.

[0043] The above technical solution can clamp and position thermoplastic composite materials. In use, the material is placed on the upper surface of the support plate 3, and the first lead screw 5 is rotated to engage with the first lead screw groove 6 to drive the fixed seat 7 to descend. In turn, the fixed seat 7 drives the pressure plate 8 to move down. During the process, the guide rod 9 and the guide groove 10 guide the movement of the pressure plate 8 to prevent the pressure plate 8 from moving skewed until the pressure plate 8 and the support plate 3 press the material together. If necessary, a servo motor can also be used to drive the first lead screw 5 to rotate to achieve automatic clamping and positioning.

[0044] like Figure 2 and Figure 4 As shown, in this embodiment, the first adjustment structure includes: a first slider 13, one end of which is fixedly connected to the scraper 12, and the other end of which is slidably engaged with the first groove 14 opened on the surface of the first connecting plate 2; and a second lead screw 16, one end of which is rotatably disposed in the first groove 14, and the other end of which is adapted to the second lead screw groove 15 opened on the surface of the first slider 13.

[0045] The above-mentioned technical solution can physically scrape off debris. In use, the second lead screw 16 is driven to rotate, and the second lead screw 16 drives the first slider 13 to slide along the first slide groove 14. In turn, the first slider 13 drives the scraper 12 to reciprocate. The stroke of the scraper 12 completely covers the upper end surface of the support plate 3, preventing the scraper 12 from cleaning incompletely and effectively controlling the amount of debris residue. If necessary, a servo motor can also be used to drive the second lead screw 16 to rotate, thereby driving the scraper 12 to automatically clean the support plate 3.

[0046] like Figure 2 and Figure 3As shown, in this embodiment, the positioning structure further includes: a chip collection box 17 with an upper opening, the chip collection box 17 being detachably disposed at the bottom of the support plate 3, the chip collection box 17 having an air hole 22 at its bottom relative to the opening, the chip collection box 17 and the support plate 3 together forming a cavity, the hollow groove 11 and the air hole 22 communicating with the cavity; and a fan 23, which is installed as a negative pressure structure at the bottom of the chip collection box 17 facing away from the opening.

[0047] The above technical solution can automatically collect debris. When the fan 23 is started and forms a negative pressure on the upper surface of the support plate 3, the debris is sucked into the chamber through the hollow groove 11 on the surface of the support plate 3 and finally falls into the debris collection box 17. The debris collection box 17 can be taken out and the debris emptied periodically.

[0048] like Figure 2 and Figure 3 As shown, in this embodiment, the positioning structure further includes: a second slider 18, which is disposed at the bottom of the chip collection box 17; a bracket 19, which is disposed at the upper end of the base 1 to support the bottom of the chip collection box 17, and the bracket 19 has a second slide groove 20 adapted to the second slider 18; and a knob 21, which is rotatably disposed on the bracket 19 and at the end of the second slide groove 20, for releasing or locking the degree of freedom of movement of the second slider 18 relative to the second slide groove 20.

[0049] The above technical solution allows the chip collection box 17 to be detachably installed below the support plate 3. When the knob 21 is rotated 90 degrees in the forward direction to unlock, the second slider 18 can slide along the second slide groove 20 to pull out the chip collection box 17. When the knob 21 is rotated 90 degrees in the reverse direction to reset, the chip collection box 17 can be locked and fixed.

[0050] like Figure 1 As shown, in this embodiment, positioning holes 24 are provided at the corners of the base 1; the clamping components are two in number and symmetrically arranged on the base 1.

[0051] The above technical solution can improve the positioning stability of thermoplastic composite materials. By applying pressure symmetrically through the dual clamping components, the workpiece deflection caused by unilateral stress can be offset.

[0052] Working principle:

[0053] When it is necessary to clamp thermoplastic composite materials, the material is placed on the upper surface of the support plate 3, and the first lead screw 5 is rotated to engage with the first lead screw groove 6 to drive the fixed seat 7 to descend. In turn, the fixed seat 7 drives the pressure plate 8 to move down. During the process, the guide rod 9 and the guide groove 10 guide the movement of the pressure plate 8 to prevent the pressure plate 8 from moving skewed until the pressure plate 8 and the support plate 3 press the material together, so that it can be cut.

[0054] When it is necessary to clean up the debris generated on the support plate 3 due to cutting, the fan 23 is activated. The fan 23 forms a local negative pressure field on the upper surface of the support plate 3 through the hollow groove 11, driving the second lead screw 16 to rotate. The second lead screw 16 drives the first slider 13 to slide along the first slide groove 14, thereby driving the scraper 12 to reciprocate through the first slider 13. The debris is physically scraped into the area of ​​the hollow groove 11 and then sucked into the chamber, finally falling into the debris collection box 17. The debris collection box 17 can be taken out and the debris emptied periodically. Through the synergistic effect of physical stripping and negative pressure recovery, the positioning accuracy drift is eliminated from the root, and the positioning effect of the positioning structure is maintained.

[0055] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0056] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning structure for a thermoplastic composite material cutting device, comprising: A base (1) and at least one clamping assembly disposed on the base (1) for clamping a thermoplastic composite material, the clamping assembly including a support plate (3) for supporting the thermoplastic composite material. The positioning structure is characterized in that it further includes: The scraper (12) is attached to the upper surface of the support plate (3), and the upper end of the support plate (3) is provided with a hollow groove (11). A negative pressure structure, which is connected to the hollow groove (11), is used to form a negative pressure on the upper end surface of the support plate (3) to adsorb debris through the hollow groove (11); The first adjustment structure is used to drive the scraper (12) to slide back and forth along the upper end face of the support plate (3) to scrape the debris attached to the upper end face of the support plate (3) to the hollow groove (11) so that it can be removed by negative pressure adsorption.

2. The positioning structure of the thermoplastic composite material cutting device according to claim 1, characterized in that, The clamping assembly further includes: The first connecting plate (2) is fixedly connected at one end to the base (1); A pressure plate (8) is disposed above the support plate (3), and a clamping space for clamping thermoplastic composite material is formed between the bottom end face of the pressure plate (8) and the upper end face of the support plate (3). The second adjustment structure is used to control the lifting and locking of the pressure plate (8).

3. The positioning structure of the thermoplastic composite material cutting device according to claim 2, characterized in that, The second adjustment structure includes: The second connecting plate (4) is fixedly connected to the first connecting plate (2); The first lead screw (5) is engaged with the first lead screw groove (6) formed on the surface of the second connecting plate (4); The fixed seat (7) is rotatably connected to the first lead screw (5) at one end and fixedly connected to the upper end of the pressure plate (8) at the other end. The guide rod (9) has one end fixedly connected to the upper end of the pressure plate (8), and the other end is slidably engaged with the guide groove (10) opened on the surface of the second connecting plate (4).

4. The positioning structure of the thermoplastic composite material cutting device according to claim 2, characterized in that, The first adjustment structure includes: The first slider (13) has one end fixedly connected to the scraper (12), and the other end is slidably engaged with the first groove (14) opened on the surface of the first connecting plate (2); The second lead screw (16) has one end rotatably disposed in the first slide groove (14), and the other end is adapted to the second lead screw groove (15) opened on the surface of the first slider (13).

5. The positioning structure of the thermoplastic composite material cutting device according to claim 2, characterized in that, The positioning structure also includes: A chip storage box (17) with an opening at the top is detachably mounted at the bottom of a support plate (3). The chip storage box (17) has an air hole (22) at its bottom relative to the opening. The chip storage box (17) and the support plate (3) together form a cavity. The hollow groove (11) and the air hole (22) communicate with the cavity. A fan (23) is installed as a negative pressure structure at the bottom of the chip collection box (17) facing away from the opening.

6. The positioning structure of the thermoplastic composite material cutting device according to claim 5, characterized in that, The positioning structure also includes: The second slider (18) is disposed at the bottom of the chip collection box (17); A bracket (19) is provided at the upper end of the base (1) to support the bottom of the chip collection box (17). The bracket (19) has a second groove (20) adapted to the second slider (18). A knob (21), which is rotatably mounted on the bracket (19) and at the end of the second slide (20), is used to release or lock the degree of freedom of movement of the second slider (18) relative to the second slide (20).

7. The positioning structure of the thermoplastic composite material cutting device according to claim 1, characterized in that, The base (1) has positioning holes (24) at its corners.

8. The positioning structure of the thermoplastic composite material cutting device according to claim 1, characterized in that, The clamping assembly has two components and is symmetrically arranged on the base (1).

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