A waste-free lightweight needling fixture

Abstract

The present invention discloses a waste-free lightweight acupuncture fixture, comprising a main beam, a synchronous moving mechanism, a cantilever assembly and acupuncture fixture mechanism, wherein the synchronous moving mechanism is installed on the main beam, the cantilever assembly is two groups of symmetrically installed, one end of which is movably arranged on one side of the main beam through the synchronous moving mechanism, and a plurality of groups of acupuncture fixture mechanisms are arranged and fixed on the two cantilever assemblies; the acupuncture fixture mechanism comprises a support adjustment assembly, a bottom support assembly and acupuncture fixing assembly installed on the support adjustment assembly, and the acupuncture fixing assembly comprises a telescopic cylinder with one end installed on the support adjustment assembly and a steel needle installed at the other end of the telescopic cylinder. The technical solution of the present invention can be implemented on an automated production line, with the cantilever assemblies on both sides driven by a servo motor to open and close synchronously, and can seamlessly connect materials of various sizes, thereby improving production efficiency, reducing fixture manufacturing specifications, and reducing product manufacturing costs.

Description

Technical Field

[0001] The invention relates to the technical field of tooling fixtures, and in particular to a waste-free lightweight acupuncture fixture. Background Art

[0002] In modern industrial materials, there are more and more multi-layer composite materials that can meet the requirements of strength and lightness at the same time. For the automated preparation process of multi-layer composite materials, the layered materials are generally clamped by a manipulator and then sprayed and other composite processes are performed. Polyurethane (PU), as a material that plays a bonding and curing role in composite materials, is generally sprayed and covered on other layered materials. The layered materials are clamped by a manipulator and placed on the workbench in the spraying room for spraying.

[0003] Since PU has the characteristics of foaming and hardening and strong adhesion, once the clamping elements on the robot clamp are stained with PU, they will not be able to move due to the hardening of PU foaming. Also, because the clamping elements need to do clamping movements, it is difficult to do any protection. In order to avoid PU, the material size can only be increased. The net size is calculated according to the maximum rectangular outline of the product. The rectangular outline must be increased by at least 30mm in the front and rear directions and at least 105mm in the left and right directions. Therefore, the feed size must be much larger than the product. The waste after compression accounts for more than 20% of the total feed amount, so too much waste is generated. The cost of waste disposal is high. The waste after compression cannot be separated and recycled because it is mixed with PU. It can only be bundled and paid to the garbage recycling company for disposal, which is expensive. Waste causes waste of labor and space. A large amount of waste needs to be bundled by a dedicated person, which takes up factory space and affects the appearance.

[0004] In addition, the load of the current manipulator is limited, and the manipulator fixtures are all made of steel. If a mechanism for adjusting the cantilever span is added to meet the basic clamping function, the fixture will be overweight. Based on this, the current fixtures are not designed in this way, and the amplitude of the clamped material cannot be adjusted. Since the sizes of each product are very different, it is impossible to make a dedicated fixture for each product, so these large and small products can only share the fixture, and in order to make do with the fixture, greater material waste is caused.

[0005] Furthermore, the existing robot clamping structure opens and closes by rotational motion. When automatically picking up materials, the clamp often presses on the edge of the material during the descent of the clamp. If the material is not between the two clamps of the robot when the clamp is closed, the material will fall off, requiring emergency braking to release the material again, wasting process operation time.

[0006] In view of the above technical problems, a fixture is needed which is suitable for the PU spraying process, adopts lightweight materials and structures, and has no waste of spraying materials. Summary of the invention

[0007] The purpose of the present invention is to provide a needling fixture which has a reasonable structure, generates no extra waste and is lightweight overall.

[0008] In order to achieve the above object, the present invention is specifically implemented through the following technical solutions:

[0009] A waste-free lightweight acupuncture fixture comprises a main beam, a synchronous moving mechanism, a cantilever assembly and acupuncture fixture mechanism. The synchronous moving mechanism is installed on the main beam. The cantilever assembly is composed of two symmetrically installed groups, one end of which is movably arranged on one side of the main beam through the synchronous moving mechanism. Several groups of acupuncture fixture mechanisms are arranged and fixed on the two cantilever assemblies. The acupuncture fixture mechanism comprises a support adjustment assembly, a bottom support assembly and acupuncture fixing assembly installed on the support adjustment assembly. The acupuncture fixing assembly comprises a telescopic cylinder with one end installed on the support adjustment assembly and a steel needle connected to the other end of the telescopic cylinder.

[0010] A further improvement of the above technical solution is that the cantilever assembly includes a cantilever body, and a connecting sleeve connected to the synchronous moving mechanism is fixed at one end of the cantilever body. The cantilever body is transversely fixed to one side of the main beam through the connecting sleeve, and the two groups of cantilever assemblies move synchronously, and a working surface is formed between the two cantilever bodies.

[0011] As a further improvement to the above technical solution, a wear-resistant belt is attached to the surface of the main beam, and a steel sheet is installed on the inner side of the connecting sleeve at a position corresponding to the wear-resistant belt. The connecting sleeve moves longitudinally along the main beam under the drive of the synchronous moving mechanism, and the wear-resistant belt and the steel sheet are used to reduce the friction between the inner wall of the connecting sleeve and the main beam, thereby reducing wear.

[0012] A further improvement of the above technical solution, the synchronous movement mechanism includes a synchronous belt, a synchronous wheel, a servo motor, a guide rail and a tension wheel installed on the main beam, the servo motor is fixedly connected to the synchronous wheel, the tension wheel is installed at both ends of the main beam, the synchronous belt is in two groups, respectively installed between the synchronous wheel and the tension wheels at both ends, and the synchronous belt and the guide rail are installed longitudinally along the main beam. The synchronous wheel is driven by the tension wheel of the synchronous wheel to rotate synchronously, thereby driving the synchronous movement of the cantilever assembly.

[0013] As a further improvement to the above technical solution, a synchronous belt connecting block and a slider are installed on the inner side of the connecting sleeve, and the connecting sleeve is transmission-connected to the synchronous moving mechanism through the synchronous belt connecting block, and is connected along the guide rail through the slider.

[0014] A further improvement on the above technical solution is that the support adjustment assembly includes a mounting sleeve, a locking block, a screw adjustment device and a cylinder mounting plate. The mounting sleeve is arranged on the cantilever assembly and fastened by the locking block; the bolt adjustment device is fixed on the top of the mounting sleeve; the cylinder mounting plate is connected to the screw adjustment device and is clamped on the locking block.

[0015] As a further improvement to the above technical solution, the top of the cylinder mounting plate is bent toward between the two cantilever assemblies to form a bending portion with a bending angle of 90° to 150°. One end of the telescopic cylinder of the acupuncture fixing assembly is fixed on the bending portion, and the other end faces between the two cantilever assemblies.

[0016] A further improvement on the above technical solution is that the screw adjustment device includes a fixed plate, a connecting block and an adjusting screw. Fixed seats are arranged at both ends of the fixed plate. The adjusting screw is threadably mounted on the two fixed seats. The connecting block is mounted on the adjusting screw and is located between the two fixed seats. The cylinder mounting plate is fixedly connected to the connecting block.

[0017] As a further improvement to the above technical solution, an elastic protective sleeve is provided on the telescopic cylinder.

[0018] A further improvement to the above technical solution is that the bottom support assembly is a miniature cylinder, which includes a cylinder body and a piston rod. The end of the cylinder body is fixedly installed at the bottom of the support adjustment assembly, and the piston rod faces between the two cantilever assemblies; a scraper sleeve is fixed on the piston mouth end face of the cylinder body, and the scraper sleeve is arranged on the piston rod.

[0019] Compared with the prior art, the technical solution of the present invention can be implemented on an automated production line, with the servo motor driving the cantilever assemblies on both sides to open and close synchronously, which can seamlessly connect materials of various sizes, improve production efficiency, reduce fixture manufacturing specifications, and reduce product manufacturing costs; the material does not need to adapt to the fixture span, but the fixture is adjusted according to the material, and the raw material cost that can be saved accounts for 10-15% of the substrate part and 6-11% of the total cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the acupuncture clamp mechanism in the present invention.

[0022] In the figure, 1, main beam; 11, wear-resistant belt; 2, synchronous moving mechanism; 21, synchronous belt; 22, synchronous wheel; 23, servo motor; 24, guide rail; 25, tensioning wheel; 3, cantilever assembly; 31, cantilever body; 32, connecting sleeve; 33, steel sheet; 34, synchronous belt connecting block; 35, slider; 4, acupuncture fixture mechanism; 41, support adjustment assembly; 411, mounting sleeve; 412, locking block; 413, screw adjustment device; 414, cylinder mounting plate; 4141, bending part; 415, fixing plate; 416, connecting block; 417, adjusting screw; 418, fixing seat; 42, bottom support assembly; 421, cylinder body; 422, piston rod; 423, scraper sleeve; 43, acupuncture fixing assembly; 431, telescopic cylinder; 432, steel needle; 433, elastic protective sleeve. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figure 1 As shown, the embodiment of the present invention provides a waste-free lightweight acupuncture fixture, including a main beam 1, a synchronous moving mechanism 2, a cantilever assembly 3 and acupuncture fixture mechanism 4. The synchronous moving mechanism 2 is installed on the main beam 1. The cantilever assembly 3 is two groups of transversely symmetrical installations, which are installed in the horizontal direction, and one end thereof is movably arranged on one side of the main beam 1 through the synchronous moving mechanism 2. Several groups of acupuncture fixture mechanisms 4 are arranged and fixed on the cantilever assemblies 3 on both sides. Preferably, the acupuncture fixture mechanisms 4 are 4 to 12 groups, which are symmetrically fixed on the cantilever assemblies 3 on both sides. The cantilever assembly 3 and the acupuncture fixture mechanism 4 can be adjusted in multiple dimensions and spans to a state suitable for the current product.

[0025] The acupuncture clamp mechanism 4 includes a support adjustment component 41, a bottom support component 42 installed on the support adjustment component 41, and a needle fixing component 43. The needle fixing component 43 includes a telescopic cylinder 431 with one end installed on the support adjustment component 41 and a steel needle 432 installed at the other end of the telescopic cylinder 431. The bottom support component 42 is used to fix the material from the bottom, and the steel needle 432 on the acupuncture clamp mechanism 4 pierces the material. Multiple groups of acupuncture clamp mechanisms 4 clamp synchronously to fix the material as a whole, while reducing the clamping area of ​​the clamp, thereby improving the refinement of the material process. In the above embodiment, an elastic protective cover 433 is set on the telescopic cylinder 431, and the elastic protective cover 433 is used to prevent the sprayed material from splashing into the telescopic gap of the telescopic cylinder 431, affecting the service life of the telescopic cylinder 431.

[0026] In the above embodiment, the cantilever assembly 3 includes a cantilever body 31, and one end of the cantilever body 31 is fixed with a connecting sleeve 32 that is transmission-connected to the synchronous moving mechanism 2. The cantilever body 31 is transversely fixed to one side of the main beam 1 through the connecting sleeve 32 and the synchronous moving mechanism 2, so that the two groups of cantilever assemblies 3 can move synchronously, and the plane between the two cantilever bodies 31 forms a working surface, which is convenient for material processing and process operation.

[0027] In the above embodiment, optionally, a wear-resistant belt 11 is fixed on the surface of the main beam 1, and a steel sheet 33 is installed on the inner side of the connecting sleeve 32 at a position corresponding to the wear-resistant belt 11. The connecting sleeve 32 moves longitudinally along the main beam 1 under the drive of the synchronous moving mechanism 2, and the wear-resistant belt 11 and the steel sheet 33 are used to reduce the friction between the inner wall of the connecting sleeve 32 and the main beam 1, thereby reducing wear.

[0028] In the above embodiment, the synchronous moving mechanism 2 includes a synchronous belt 21, a synchronous wheel 22, a servo motor 23, a guide rail 24 and a tensioning wheel 25 installed on the main beam 1, and the servo motor 23 is fixedly connected to the synchronous wheel 22. The servo motor 23 is installed in the middle of the main beam 1, and the synchronous wheel 22 is fixed on its output shaft. The tensioning wheel 25 is installed at both ends of the main beam 1. The synchronous belt 21 is divided into two groups, which are respectively installed between the synchronous wheel 22 and the tensioning wheels 25 at both ends. The synchronous belt 21 and the guide rail 24 are both installed longitudinally along the main beam 1. That is, the two synchronous belts 21 are tensioned and fixed from the synchronous wheel 22 in the middle of the main beam 1 to the tensioning wheels 25 at both ends of the main beam 1.

[0029] In the above embodiment, a synchronous belt connection block 34 and a slider 35 are installed inside the connecting sleeve 32 . The connecting sleeve 32 is transmission-connected to the synchronous belt 21 through the synchronous belt connection block 34 , and is connected along the guide rail 24 through the slider 35 .

[0030] In the above embodiment, the support adjustment assembly 41 includes a mounting sleeve 411, a locking block 412, a screw adjustment device 413 and a cylinder mounting plate 414. The mounting sleeve 411 is sleeved on the cantilever assembly 3, and specifically, the mounting sleeve 411 is sleeved on the cantilever body 31. The mounting sleeve 411 is fastened by the locking block 412. The locking block 412 is divided into two groups, upper and lower, and each group is divided into two left and right blocks. The upper and lower parts of the locking block 412 are slotted, and the end of the mounting sleeve 411 is clamped in the slot, and the upper and lower groups of locking blocks 412 are fixed by bolts. The bolt adjustment device 413 is fixed on the top of the mounting sleeve 411. The cylinder mounting plate 414 is connected to the screw adjustment device 413 and clamped on the locking block 412. The cylinder mounting plate 414 is fixed between the left and right locking blocks 412.

[0031] In the above embodiment, the top of the cylinder mounting plate 414 is bent toward the inner side between the two cantilever assemblies 3 to form a bent portion 4141, and the bending angle is 90° to 150°. One end of the telescopic cylinder 431 of the needle-piercing fixing assembly 43 is fixed on the bent portion 4141, and the other end faces between the two cantilever assemblies 2. The manipulator clamp moves to the material-taking platform to take the material. At this time, the telescopic cylinder 431 is in a retracted state, and the steel needle 432 installed on the telescopic cylinder 431 of the needle-piercing fixing assembly 43 pierces the material to achieve needle-piercing clamping, with a small clamping area, thereby improving the refinement of the workpiece spraying process.

[0032] In the above embodiment, the screw adjustment device 413 includes a fixing plate 415, a connecting block 416 and an adjusting screw 417. The fixing seats 418 are arranged at both ends of the fixing plate 415. The adjusting screw 417 is threadedly mounted on the two fixing seats 418. The connecting block 416 is sleeved on the adjusting screw 417 and is located between the two fixing seats 418. The cylinder mounting plate 414 is fixedly connected to the connecting block 416. The locking blocks 412 on the left and right sides are loosened, and the cylinder mounting plate 414 is moved up and down in the locking blocks on both sides by rotating the adjusting screw 417 to adjust the depth of insertion and clamping, so as to adapt to the acupuncture clamping of workpieces of different thicknesses.

[0033] In the above embodiment, the bottom support assembly 42 is a miniature cylinder, which includes a cylinder body 421 and a piston rod 422. The end of the cylinder body 421 is fixedly installed at the bottom of the support adjustment assembly 41, and the piston rod 422 faces between the two cantilever assemblies 2; a scraper sleeve 423 is fixed to the piston mouth end face of the cylinder body 421, and the scraper sleeve 423 is sleeved on the piston rod 422. When the clamping of the piston rod 422 is completed and retracted, the scraper sleeve 423 hangs off the remaining spray material on the piston rod 422.

[0034] The specific embodiments of the present invention are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A waste-free lightweight acupuncture fixture, characterized in that: The invention comprises a main beam (1), a synchronous moving mechanism (2), a cantilever assembly (3) and an acupuncture clamp mechanism (4), wherein the synchronous moving mechanism is installed on the main beam, the cantilever assembly is composed of two groups of symmetrically installed cantilever assemblies, one end of which is movably arranged on one side of the main beam through the synchronous moving mechanism, and a plurality of groups of acupuncture clamp mechanisms are arranged and fixed on the two cantilever assemblies; the acupuncture clamp mechanism comprises a support adjustment assembly (41), a bottom support assembly (42) installed on the support adjustment assembly, and an acupuncture fixing assembly (43); the acupuncture fixing assembly comprises a telescopic cylinder (431) with one end installed on the support adjustment assembly and a steel needle (432) connected to the other end of the telescopic cylinder; an elastic protective sleeve (433) is sleeved on the telescopic cylinder; The support adjustment assembly comprises a mounting sleeve (411), a locking block (412), a screw adjustment device (413) and a cylinder mounting plate (414); the mounting sleeve is arranged on the cantilever assembly and is fastened by the locking block; the bolt adjustment device is fixed on the top of the mounting sleeve; The cylinder mounting plate is connected to the screw adjusting device and is clamped on the locking block; the top of the cylinder mounting plate is bent toward between the two cantilever assemblies to form a bending portion (4141), and the bending angle is 90° to 150°. One end of the telescopic cylinder of the steel needle assembly is fixed on the bending portion, and the other end faces between the two cantilever assemblies; The bottom supporting component is a micro cylinder, which comprises a cylinder body (421) and a piston rod (422). The end of the cylinder body is fixedly installed at the bottom of the supporting and adjusting component, and the piston rod faces between the two cantilever components. A scraper sleeve (423) is fixed on the piston mouth end face of the cylinder body, and the scraper sleeve is sleeved on the piston rod.

2. The waste-free lightweight needling fixture according to claim 1, characterized in that: The cantilever assembly comprises a cantilever body (31), which is made of carbon fiber material and has a connecting sleeve (32) fixed at one end thereof for transmission connection with the synchronous moving mechanism.

3. The waste-free lightweight needling fixture according to claim 2, characterized in that: The main beam is made of carbon fiber material, a wear-resistant belt (11) is attached and fixed on the surface of the main beam, and a steel sheet (33) is installed at a position corresponding to the wear-resistant belt on the inner side of the connecting sleeve.

4. The waste-free lightweight needling fixture according to claim 2, characterized in that: The synchronous moving mechanism comprises a synchronous belt (21), a synchronous wheel (22), a servo motor (23), a guide rail (24) and a tension wheel (25) installed on the main beam. The servo motor is fixedly connected to the synchronous wheel. The tension wheel is installed at two ends of the main beam. The synchronous belt is divided into two groups, which are respectively installed between the synchronous wheel and the tension wheels at both ends. The synchronous belt and the guide rail are installed along the longitudinal direction of the main beam.

5. The waste-free lightweight needling fixture according to claim 4, characterized in that: A synchronous belt connection block (34) and a slider (35) are installed inside the connecting sleeve. The connecting sleeve is connected to the synchronous belt transmission through the synchronous belt connection block and is matched and connected along the guide rail through the slider.

6. The waste-free lightweight needling fixture according to claim 1, characterized in that: The screw adjustment device comprises a fixing plate (415), a connecting block (416) and an adjusting screw (417). Fixing seats (418) are arranged at both ends of the fixing plate. The adjusting screw is threadably mounted on the two fixing seats. The connecting block is sleeved on the adjusting screw and is located between the two fixing seats. The cylinder mounting plate is fixedly connected to the connecting block.

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