Thermoplastic composite welding fixture
By designing welding fixtures for movable plates and positioning plates, the problem of difficult-to-fit composite material welding sides was solved, achieving precise positioning and efficient welding, thus improving welding accuracy and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIYUANLONG AEROSPACE NEW MATERIALS (ZHANGJIAGANG) CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-12
Smart Images

Figure CN224348449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermoplastic composite material welding technology, specifically a thermoplastic composite material welding fixture. Background Technology
[0002] Thermoplastic composites are a class of high-performance engineering materials composed of a thermoplastic resin matrix and reinforcing fibers. In the production and processing of some thermoplastic composites, two pieces of thermoplastic composites are welded together. However, when using existing welding fixtures, it is difficult for workers to connect the composites, making the welding process cumbersome and potentially reducing the welding accuracy. This makes it inconvenient for workers to use and reduces their work efficiency.
[0003] To address the aforementioned issues, CN220720336U discloses a "High-Precision Thermoplastic Composite Material Welding Fixture." This fixture uses two sets of linear motors to move two sets of thermoplastic composite materials, facilitating the docking of the composite materials and improving welding efficiency and precision. However, this device still has certain drawbacks in practical use. For example, the outer sides of the mounting frame and the outer sides of the slide plate are positioned opposite each other. Therefore, when the welding head welds the composite material on the top of the slide plate, to avoid the mounting frame interfering with the welding head's operation, the welding side of the composite material on the top of the slide plate needs to protrude beyond the slide plate's inner side. Since the protrusion distance of the welding side is difficult to control, it is difficult to ensure that the two composite material welding sides are positioned directly below the welding head after being joined. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a welding fixture for thermoplastic composite materials. By using movable plates on both sides of the outer end that protrude from the corresponding positions directly below the top plate, the top plate can be prevented from affecting the welding head's welding of the two composite materials, and the positioning plate facilitates the positioning of the composite materials.
[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0006] A welding fixture for thermoplastic composite materials includes: a base, with movable plates on both sides of the top of the base, and positioning plates on the inner sides of the two movable plates. A fixing assembly is provided on the top of the movable plates for fixing the composite material to the top of the movable plates. The fixing assembly includes: a top plate, an electric telescopic rod, a clamping plate, and a vertical plate. A disassembly assembly is provided between the positioning plate and the movable plates for disassembling and assembling the positioning plate. The disassembly assembly includes: a crossbar, a insertion rod, a slot, and a protruding plate.
[0007] Optionally, the movable plate is provided with a top plate, an electric telescopic rod is installed on the top of the top plate, a clamping plate is connected to the bottom end of the electric telescopic rod, vertical plates are connected to both sides of the bottom of the top plate, the bottom ends of the vertical plates are connected to the movable plate, the outer ends of the movable plate protrude from the corresponding positions directly below the top plate, side plates are installed on both the front and rear sides of the base, electric slide rails a are installed on the top sides of the two side plates, and two sliders are connected to both sides of the bottom of the movable plate. The fixing assembly composed of the top plate, electric telescopic rod, clamping plate and vertical plate is used to fix the composite material on the top of the movable plate.
[0008] Optionally, two crossbars are installed on one side of the outer end of the positioning plate, and a plug is connected to one end of each crossbar. Two slots are opened on one side of the top of the movable plate. A protruding plate is installed on the inner side of the positioning plate. A fixed plate is installed on the top of the movable plate. An electric lifting rod is installed inside the fixed plate. A welding head is installed at the bottom end of the electric lifting rod. An electric slide rail b is installed on one side of the inner wall of the fixed plate. A connecting block is installed at the top of the electric lifting rod. Support plates are installed on both sides of the bottom of the fixed plate. The bottom of the two support plates is connected to the two side plates respectively. An opening is opened on one side of the outer end of the support plate. The disassembly and assembly assembly composed of the crossbars, plugs, slots, and protruding plates is used to disassemble and assemble the positioning plate.
[0009] The beneficial effects of this utility model are:
[0010] The advantage of this utility model is that the composite material can be clamped and fixed on the top of the movable plate by the fixing component, and the two outer sides of the movable plate protrude from the corresponding positions directly below the top plate. Therefore, the top plate will not affect the welding head to weld the two composite materials, and the movable plate can ensure the support effect on the side of the composite material being welded.
[0011] Secondly, the positioning plate can align the welding side of the composite material with the inner side of the movable plate. Therefore, when the two movable plates move and come into contact, the welding sides of the two composite materials will also come into contact. The assembly and disassembly are used to disassemble and assemble the positioning plate. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the fixing plate structure of this utility model.
[0015] Figure 4 This is a schematic diagram of the base structure of this utility model.
[0016] Figure 5This is a schematic diagram of the movable plate structure of this utility model.
[0017] Figure 6 This is a schematic diagram of the positioning plate structure of this utility model.
[0018] Figures 1-6 In the middle: 1-base; 101-movable plate; 102-positioning plate; 2-top plate; 201-electric telescopic rod; 202-clamping plate; 203-vertical plate; 3-side plate; 301-slide rail a; 302-slider; 4-cross bar; 401-insertion rod; 402-slot; 403-protruding plate; 5-fixing plate; 501-electric lifting rod; 502-welding head; 6-electric slide rail b; 601-connecting block; 7-support plate; 701-opening. Detailed Implementation
[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0020] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1-6 As shown, a welding fixture for thermoplastic composite materials includes: a base 1, with movable plates 101 on both sides of the top of the base 1, and positioning plates 102 on the inner sides of the two movable plates 101. A fixing assembly is provided on the top of the movable plates 101 for fixing the composite material to the top of the movable plates 101. The fixing assembly includes: a top plate 2, an electric telescopic rod 201, a clamping plate 202, and a vertical plate 203. A disassembly assembly is provided between the positioning plate 102 and the movable plate 101 for disassembling and assembling the positioning plate 102. The disassembly assembly includes: a crossbar 4, an insert rod 401, a slot 402, and a protruding plate 403.
[0022] The movable plate 101 has a top plate 2 on top, and an electric telescopic rod 201 is installed on the top of the top plate 2. The bottom end of the electric telescopic rod 201 is connected to a clamping plate 202. Vertical plates 203 are connected to both sides of the bottom of the top plate 2. The bottom ends of the vertical plates 203 are connected to the movable plate 101. The outer sides of the movable plate 101 protrude from the corresponding positions directly below the top plate 2. When using this device to weld thermoplastic composite materials, two pieces of composite materials are placed on the top of the two movable plates 101 respectively, and the side of the composite material to be welded is aligned with the inner side of the movable plate 101. Then, the clamping plate 202 is raised and lowered by the electric telescopic rod 201 until the bottom of the clamping plate 202 is in contact with the composite material. Therefore, the composite material is clamped and fixed on the top of the movable plate 101 by the clamping plate 202. Since the outer sides of the movable plate 101 protrude from the corresponding positions directly below the top plate 2, the top plate 2 will not affect the welding head 502 to weld the two pieces of composite material, and the movable plate 101 ensures the support effect of the side of the composite material to be welded.
[0023] The base 1 has side plates 3 installed on both the front and rear sides. Electric slide rails a301 are installed on the top sides of the two side plates 3. Two sliders 302 are connected to the bottom sides of the movable plate 101. When the composite material is fixed on the top of the movable plate 101, the bottom end of the slider 302 is connected to the sliding part in the electric slide rail a301. Therefore, the movable plate 101 can be moved laterally by the electric slide rail a301 through the slider 302. The two movable plates 101 are moved inward by the four electric slide rails a301 until the inner sides of the two movable plates 101 are in contact, and the inner sides of the two composite materials on the top are in contact. At this time, the welding head 502 can be used to weld the two composite materials at the contact point.
[0024] Two crossbars 4 are installed on one side of the outer end of the positioning plate 102. One end of each crossbar 4 is connected to a plug rod 401. Two slots 402 are opened on one side of the top of the movable plate 101. A protruding plate 403 is installed on the inner side of the positioning plate 102. Before aligning the welding side of the composite material with the inner side of the movable plate 101, the positioning plate 102 is placed inside the movable plate 101, with the crossbars 4 positioned at the top of the movable plate 101. The bottom end of the plug rod 401 is inserted into the slot 402. Since the bottom end of the plug rod 401 is engaged inside the slot 402, the positioning plate 102 can be installed inside the movable plate 101. Therefore, when the composite material is placed on the top of the movable plate 101, the welding side of the composite material can be attached to the outer side of the positioning plate 102. Since the outer side of the positioning plate 102 is attached to the inner side of the movable plate 101, the welding side of the composite material and the inner side of the movable plate 101 are aligned with the same vertical plane. Then, the composite material is fixed to the top of the movable plate 101 by the clamping plate 202. Next, the positioning plate 102, the crossbar 4, and the insertion rod 401 are moved upward by the protruding plate 403 until the bottom end of the insertion rod 401 slides out from the slot 402. At this time, the positioning plate 102 and the movable plate 101 are separated and disassembled.
[0025] The movable plate 101 has a fixed plate 5 installed on its top. An electric lifting rod 501 is installed inside the fixed plate 5. A welding head 502 is installed at the bottom of the electric lifting rod 501. When the welding head 502 is used, the electric lifting rod 501 is used to lift the welding head 502 to the joint of the two composite materials. Then the welding head 502 is used to weld the joint of the two composite materials. The welding head 502 is a conventional method in the art. This application does not improve the welding head 502. Therefore, this application does not describe the detailed usage method of the welding head 502.
[0026] An electric slide rail b6 is installed on one side of the inner wall of the fixed plate 5, and a connecting block 601 is installed at the top of the electric lifting rod 501. When the welding head 502 is used to weld the composite material at the bonding point, since the top of the connecting block 601 is connected to the sliding component in the electric slide rail b6, the electric slide rail b6 can drive the electric lifting rod 501 and the welding head 502 to move back and forth through the connecting block 601, thereby adjusting the longitudinal welding position of the welding head 502.
[0027] Among them, the bottom sides of the fixed plate 5 are equipped with support plates 7. The bottom of the two support plates 7 are respectively connected to the two side plates 3. An opening 701 is opened on one side of the outer end of the support plate 7. The support plate 7 is used to fix the fixed plate 5 on the top of the base 1, and the opening 701 makes it easy for the staff to check the welding effect at the joint of the two composite materials.
[0028] Working principle:
[0029] When using this device, two pieces of composite material are placed on top of the two movable plates 101 respectively. Then, the positioning plate 102 is placed inside the movable plate 101, so that the crossbar 4 is located on top of the movable plate 101. The bottom end of the insertion rod 401 is inserted into the slot 402. Since the bottom end of the insertion rod 401 is engaged inside the slot 402, the positioning plate 102 can be installed inside the movable plate 101. Therefore, when the composite material is placed on top of the movable plate 101, the welding side of the composite material can be attached to the outer side of the positioning plate 102. Since the outer side of the positioning plate 102 is attached to the inner side of the movable plate 101, the welding side of the composite material and the inner side of the movable plate 101 are aligned on the same vertical plane. Then, the clamping plate 202 is raised and lowered by the electric telescopic rod 201 until the bottom of the clamping plate 202 is attached to the composite material. Thus, the composite material is clamped and fixed to the top of the movable plate 101 by the clamping plate 202. Since the outer sides of the movable plate 101 protrude from the corresponding positions directly below the top plate 2, the top plate 2 will not affect the top of the movable plate 101. The welding head 502 welds the two composite materials together, and the movable plate 101 ensures the support effect on the welding side of the composite materials. Then, the positioning plate 102, the crossbar 4, and the insertion rod 401 are moved upward by the protruding plate 403 until the bottom end of the insertion rod 401 slides out of the slot 402. At this time, the positioning plate 102 is separated from the movable plate 101. Then, the movable plate 101 is moved laterally by the electric slide rail a301 through the slider 302. The two movable plates 101 are moved inward by the four electric slide rails a301 until the inner sides of the two movable plates 101 are in contact, and the inner sides of the two composite materials at the top are in contact. Then, the welding head 502 is raised and lowered to the point where the two composite materials are in contact by the electric lifting rod 501. Then, the welding head 502 is used to weld the welding point of the two composite materials. Then, the electric slide rail b6 can drive the electric lifting rod 501 and the welding head 502 to move back and forth by the connecting block 601, thereby adjusting the longitudinal welding position of the welding head 502.
[0030] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.
[0031] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0032] The above provides a detailed description of a thermoplastic composite welding fixture provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A welding fixture for thermoplastic composite materials, characterized in that, include: Base (1); The base (1) has movable plates (101) on both sides of the top, and positioning plates (102) are provided on the inner sides of the two movable plates (101). The top of the movable plate (101) is provided with a fixing component for fixing the composite material to the top of the movable plate (101). The fixing component includes: a top plate (2), an electric telescopic rod (201), a clamping plate (202), and a vertical plate (203). A disassembly assembly is provided between the positioning plate (102) and the movable plate (101) for disassembling and assembling the positioning plate (102). The disassembly assembly includes: a crossbar (4), a plug (401), a slot (402), and a protrusion (403).
2. The thermoplastic composite material welding fixture according to claim 1, characterized in that, The top of the movable plate (101) is provided with a top plate (2), and an electric telescopic rod (201) is installed on the top of the top plate (2). The bottom end of the electric telescopic rod (201) is connected to a clamping plate (202). Vertical plates (203) are connected to both sides of the bottom of the top plate (2). The bottom end of the vertical plate (203) is connected to the movable plate (101). The outer sides of the movable plate (101) protrude from the corresponding positions directly below the top plate (2).
3. The welding fixture for thermoplastic composite materials according to claim 1, characterized in that, The base (1) has side plates (3) installed on both the front and rear sides. Electric slide rails (301) are installed on both sides of the top of the two side plates (3). Two sliders (302) are connected to both sides of the bottom of the movable plate (101).
4. The thermoplastic composite material welding fixture according to claim 3, characterized in that, Two crossbars (4) are installed on one side of the outer end of the positioning plate (102). One end of the crossbar (4) is connected to a plug (401). Two slots (402) are opened on one side of the top of the movable plate (101). A protruding plate (403) is installed on the inner side of the positioning plate (102).
5. The welding fixture for thermoplastic composite materials according to claim 3, characterized in that, A fixed plate (5) is installed on the top of the movable plate (101), an electric lifting rod (501) is installed inside the fixed plate (5), and a welding head (502) is installed at the bottom of the electric lifting rod (501).
6. The thermoplastic composite material welding fixture according to claim 5, characterized in that, An electric slide rail b (6) is installed on one side of the inner wall of the fixed plate (5), and a connecting block (601) is installed at the top of the electric lifting rod (501).
7. The welding fixture for thermoplastic composite materials according to claim 5, characterized in that, The fixed plate (5) has support plates (7) installed on both sides of its bottom. The bottom of the two support plates (7) is connected to the two side plates (3) respectively. An opening (701) is provided on one side of the outer end of the support plate (7).