A fixture capable of adapting to the curved surface of thin shell parts

Abstract

The present invention provides a clamp that can adapt to the curved surface of a thin shell part. The clamp is mainly composed of a reciprocating conveyor platform assembly, a manipulator assembly, a fixed clamping platform, a movable clamping platform, an open hard pipe, a thin shell part, and a positioning sensor. The manipulator assembly is provided with a claw part, a cylinder part, and a motor part. The movable clamping platform is fixedly connected to the bottom of the claw part. The fixed clamping platform is installed on the reciprocating conveyor platform assembly. The positioning sensor is connected between the movable clamping platform and the claw part. The fixed clamping platform and the movable clamping platform are respectively provided with a fixed clamping rod and a movable clamping rod, and the fixed clamping platform and the movable clamping platform are respectively provided with three adjustable clamping seats arranged in a side-by-side manner. Positioning nuts are provided between the adjustable clamping seats and the fixed clamping rod and the movable clamping rod. The bottom of the movable clamping rod is provided with an open hard pipe, a hose, and a contact. The hose and the contact are respectively connected to the two ends of the open hard pipe. The present invention can improve the clamping efficiency of the thin shell part by combining the manipulator assembly, the positioning sensor, and the reciprocating conveyor platform assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of clamp devices, in particular to a clamp capable of adapting to the curved surface of a thin shell. Background Art

[0002] A fixture is a device used to fix the object to be processed during the mechanical manufacturing process so that it occupies the correct position for processing or testing. It is also called a clamp.

[0003] Currently, clamps are essential equipment in the production of mechanical and electronic products on the market. However, when clamping small and thin curved plastic parts, using larger clamps is not only inconvenient to use and reduces efficiency, but also too large, leaving little space for workers to operate, making it difficult for workers to use and not conducive to quick operation.

[0004] Based on the above reasons, an embodiment of the present invention provides a tooling fixture that can adapt to the surface of a part, which can perform surface contact clamping on thin curved plastic parts, thereby reducing damage to the thin curved plastic parts. At the same time, it provides a larger operating space for workers to operate, and integrates a conveying module and a robot module, which is conducive to quick operation.

[0005] In this technology, the hardenable material refers to the epoxy resin curing agent, which is an additive such as fatty amine, polyamide, etc. that chemically reacts with the epoxy resin to form a three-dimensional network polymer, encapsulating the composite material in the network and turning the linear resin into a tough solid body. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a clamp that can adapt to the curved surface of a thin shell.

[0007] The clamp that can adapt to the curved surface of a thin shell part described in the present invention is characterized in that: it is mainly composed of a reciprocating conveying platform assembly, a manipulator assembly, a fixed clamping platform, a movable clamping platform, an open hard tube, a thin shell part and a positioning sensor; the manipulator assembly is provided with a claw part, a cylinder part and a motor part, the movable clamping platform is fixedly connected to the bottom of the claw part, the fixed clamping platform is installed on the reciprocating conveying platform assembly, and the positioning sensor is connected between the movable clamping platform and the claw part; the fixed clamping platform and the movable clamping platform are respectively provided with a fixed clamping rod and a movable clamping rod, and the fixed clamping platform and the movable clamping platform are respectively provided with three adjustable clamping seats arranged side by side, and positioning nuts are provided between the adjustable clamping seats and the fixed clamping rod and the movable clamping rod; the bottom of the movable clamping rod is provided with an open hard tube, a hose and a contact, and the hose and the contact are respectively connected to the two ends of the open hard tube.

[0008] Preferably, both ends of the three adjustable clamping seats on the fixed clamping platform and the movable clamping platform are sleeved on the fixed clamping platform and the movable clamping platform and are slidable, and the fixed clamping platform and the movable clamping platform are symmetrical.

[0009] Preferably, the surfaces of the fixed clamping rod and the dynamic clamping rod are both provided with threads, and the threads are engaged with the positioning nuts. After the fixed clamping rod is inserted into the adjustable clamping seat of the fixed clamping platform, the positional relationship between the fixed clamping rod and the adjustable clamping seat is limited by the positioning nuts located on the upper and lower surfaces of the adjustable clamping seat, that is, the fixed clamping rod can be translated and telescopically moved up and down in the adjustable clamping seat of the fixed clamping platform. Similarly, after the dynamic clamping rod is inserted into the adjustable clamping seat of the movable clamping platform, the positional relationship between the dynamic clamping rod and the adjustable clamping seat is limited by the positioning nuts located on the upper and lower surfaces of the adjustable clamping seat, that is, the dynamic clamping rod can be translated and telescopically moved up and down in the adjustable clamping seat of the movable clamping platform; thereby, the axes of the fixed clamping rod and the dynamic clamping rod can be adjusted to a straight line, that is, when the fixed clamping rod and the dynamic clamping rod located on both sides of the thin shell clamp the thin shell, the axis shells are located on a straight line.

[0010] Preferably, the three fixed clamping rods are installed in the adjustable clamping seat of the fixed clamping platform, and the three fixed clamping rods are arranged in a triangle, that is, the three points on the top of the three fixed clamping rods determine a plane; similarly, the three movable clamping rods are installed in the adjustable clamping seat of the movable clamping platform, and the three movable clamping rods are arranged in a triangle.

[0011] Preferably, a feed cavity and a No. 1 molding cavity are respectively provided in the hose and the open hard tube, and the feed cavity and the No. 1 molding cavity are through-connected.

[0012] Preferably, the upper inner section of the open hard tube is provided with a stop ball and a compression spring. The stop ball is circular and presses against the upper inner end of the open hard tube, and the compression spring presses against the bottom of the stop ball, that is, the open hard tube forms a one-way feeding device through the stop ball and the compression spring.

[0013] Preferably, a second forming cavity in the shape of a columnar hollow is provided inside the contact, and the contact is made of hard rubber material. When the bottom of the contact is squeezed against the surface of the thin shell, the contact shell is deformed, so that the bottom of the contact is completely fitted with the surface of the thin shell, that is, the material in the second forming cavity will not leak out from the contact point between the contact and the surface of the thin shell.

[0014] Preferably, the contact is sleeved on the bottom of the open hard tube, and the open hard tube extends into the contact at one-third of its length, so that the contact can be pulled out from the bottom of the open hard tube after the material in the contact is hardened and formed.

[0015] Preferably, the bottom of the contact is provided with an inwardly recessed contact slope, so that when the bottom of the contact is pressed against the surface of the thin shell, the bottom of the contact will not produce warping.

[0016] Preferably, the materials in the No. 1 and No. 2 molding cavities harden to form clamping columns, and the bottoms of the clamping columns form clamping surfaces on the hardened surfaces of the thin shell parts, thereby adapting to the curvature of the thin shell part surface through the clamping surfaces.

[0017] The beneficial effects of the present invention are:

[0018] 1. The fixed clamping platform and the movable clamping platform are symmetrical so that the three fixed clamping rods and the three movable clamping rods can respectively determine a plane, that is, the upper and lower surfaces of the clamped thin shell are hollowed out, which is convenient for workers to operate the thin shell.

[0019] 2. By combining the manipulator assembly, positioning sensor and reciprocating conveyor assembly, the efficiency of the clamp for thin shell parts can be improved, thereby reducing the cost of workers.

[0020] 3. In the one-way feeding device composed of an open rigid tube, a flexible tube and a contact, the material can form a clamping surface with the same surface curvature as the surface of the thin shell after being hardened on the surface of the thin shell, that is, it adapts to the curved surface of the thin shell and increases the contact surface when the clamp clamps the thin shell. At the same time, it can reduce the damage caused to the surface of the thin shell when the clamp clamps it.

[0021] 4. The one-way feeding device composed of an open hard tube, a hose and a contact has a low cost and can be replaced for use with different thin shell parts, that is, the fixture can be applied to thin shell parts with different curved surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the clamp of the present invention.

[0023] Figure 2 It is a three-dimensional diagram of the clamp of the present invention.

[0024] Figure 3 This is a three-dimensional diagram of the clamp of the present invention after removing the reciprocating conveyor platform component, the robot arm component, the fixed clamping platform and the movable clamping platform.

[0025] Figure 4 The isometric drawing of the fixture of the present invention after removing the reciprocating conveyor platform assembly, the manipulator assembly, the fixed clamping platform and the movable clamping platform.

[0026] Figure 5 This is a front view of the fixture of the present invention after removing the reciprocating conveyor platform assembly, the robot assembly, the fixed clamping platform, the movable clamping platform and the thin shell.

[0027] Figure 6 for Figure 5 A three-dimensional diagram of the fixture after cutting in the AA direction.

[0028] Figure 7 for Figure 6 A partial enlarged view of fixture B in the figure.

[0029] In the figure: 1. Reciprocating conveyor platform assembly; 2. Robot assembly, 21. Claw part, 22. Cylinder part, 23. Motor part; 3. Fixed clamping platform, 31. Fixed clamping rod, 32. Clamping head; 4. Movable clamping platform, 41. Moving clamping rod; 5. Adjustable clamping seat, 51. Positioning nut; 6. Hose, 61. Feed chamber; 7. Stop ball, 71. Compression spring; 8. Open hard tube, 81. Forming chamber No. 1; 9. Contact, 91. Forming chamber No. 2, 92. Contact slope; 101. Clamping column; 102. Clamping surface; 103. Thin shell part; 104. Positioning sensor. Implementation Method

[0030] In order to make the technical solution of the present invention clearer, the present invention is further described below with reference to the specific embodiments of the drawings; it should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0031] like Figure 1-7 As shown, the clamp that can adapt to the curved surface of a thin shell part described in this embodiment is mainly composed of a reciprocating conveying platform assembly 1, a manipulator assembly 2, a fixed clamping platform 3, a movable clamping platform 4, an open hard tube 8, a thin shell part 103 and a positioning sensor 104; the manipulator assembly 2 is provided with a claw part 21, a cylinder part 22 and a motor part 23, the movable clamping platform 4 is fixedly connected to the bottom of the claw part 21, the fixed clamping platform 3 is installed on the reciprocating conveying platform assembly 1, and the positioning sensor 104 is connected between the movable clamping platform 4 and the claw part 21; the fixed clamping platform 3 and the movable clamping platform 4 are respectively provided with a fixed clamping rod 31 and a movable clamping rod 41, and the fixed clamping platform 3 and the movable clamping platform 4 are respectively provided with three adjustable clamping seats 5 arranged side by side, and a positioning nut 51 is provided between the adjustable clamping seat 5 and the fixed clamping rod 31 and the movable clamping rod 41; the bottom of the movable clamping rod 41 is provided with an open hard tube 8, a hose 6 and a contact 9, and the hose 6 and the contact 9 are respectively connected to the two ends of the open hard tube 8.

[0032] In this embodiment, both ends of the three adjustable clamping seats 5 on the fixed clamping platform 3 and the movable clamping platform 4 are slidably mounted on the fixed clamping platform 3 and the movable clamping platform 4, and the fixed clamping platform 3 and the movable clamping platform 4 are symmetrical.

[0033] In this embodiment, the surfaces of the fixed clamping rod 31 and the movable clamping rod 41 are both provided with threads, and the threads are engaged with the positioning nuts 51. After the fixed clamping rod 31 is inserted into the adjustable clamping seat 5 of the fixed clamping platform 3, the positional relationship between the fixed clamping rod 31 and the adjustable clamping seat 5 is limited by the positioning nuts 51 located on the upper and lower surfaces of the adjustable clamping seat 5, that is, the fixed clamping rod 31 can be translated and telescopically moved up and down in the adjustable clamping seat 5 of the fixed clamping platform 3. Similarly, after the movable clamping rod 41 is inserted into the adjustable clamping seat 5 of the movable clamping platform 4, the positional relationship between the movable clamping rod 41 and the adjustable clamping seat 5 is limited by the positioning nuts 51 located on the upper and lower surfaces of the adjustable clamping seat 5, that is, the movable clamping rod 41 can be translated and telescopically moved up and down in the adjustable clamping seat 5 of the movable clamping platform 4; thereby, the axes of the fixed clamping rod 31 and the movable clamping rod 41 can be adjusted to a straight line, that is, when the fixed clamping rod 31 and the movable clamping rod 41 located on both sides of the thin shell member 103 clamp the thin shell member 103, the axis shell is located in a straight line.

[0034] In this embodiment, the three fixed clamping rods 31 are installed in the adjustable clamping seat 5 of the fixed clamping platform 3, and the three fixed clamping rods 31 are arranged in a triangle, that is, the three points on the top of the three fixed clamping rods 31 determine a plane; similarly, the three dynamic clamping rods 41 are installed in the adjustable clamping seat 5 of the movable clamping platform 4, and the three dynamic clamping rods 41 are arranged in a triangle.

[0035] In this embodiment, a feed cavity 61 and a No. 1 molding cavity 81 are respectively provided in the hose 6 and the open hard tube 8, and the feed cavity 61 and the No. 1 molding cavity 81 are connected through.

[0036] In this embodiment, a stop ball 7 and a compression spring 71 are provided in the upper inner section of the open rigid tube 8. The stop ball 7 is circular and presses against the upper inner end of the open rigid tube 8, and the compression spring 71 presses against the bottom of the stop ball 7. That is, the stop ball 7 and the compression spring 71 form a one-way feeding device for the open rigid tube 8.

[0037] In this embodiment, a second forming cavity 91 in a cylindrical hollow shape is provided inside the contact 9, and the contact 9 is made of hard rubber material. When the bottom of the contact 9 is squeezed on the surface of the thin shell 103, the shell of the contact 9 is deformed, so that the bottom of the contact 9 is completely fitted with the surface of the thin shell 103, that is, the material in the second forming cavity 91 will not leak out from the contact point between the contact 9 and the surface of the thin shell 103.

[0038] In this embodiment, the contact 9 is sleeved on the bottom of the open hard tube 8, and the open hard tube 8 extends into the contact 9 by one-third, so that the contact 9 can be pulled out from the bottom of the open hard tube 8 after the material in the contact 9 is hardened and formed.

[0039] In this embodiment, the bottom of the contact 9 is provided with an inwardly recessed contact slope 92 , so that when the bottom of the contact 9 is pressed against the surface of the thin shell 103 , the bottom of the contact 9 will not warp.

[0040] In this embodiment, the material in the No. 1 molding cavity 81 and the No. 2 molding cavity 91 forms a clamping column 101 after hardening, and the bottom of the clamping column 101 forms a clamping surface 102 on the hardened surface of the thin shell part 103, so that the curvature of the surface of the thin shell part 103 can be adapted by the clamping surface 102.

[0041] When in use, first calibrate the axes of the fixed clamping rod 31 and the movable clamping rod 41 to be in a straight line. During this process, adjust the manipulator assembly 2 to drive the movable clamping platform 4 to descend, that is, the movable clamping rod 41 and the fixed clamping rod 31 are in contact up and down, thereby facilitating the adjustment of the axes of the fixed clamping rod 31 and the movable clamping rod 41 to be in a straight line.

[0042] Next, the manipulator assembly 2 drives the movable clamping platform 4 to rise, aligns the thin shell 103 with the positioning sensor 104 and places it on the upper end of the fixed clamping rod 31 of the fixed clamping platform 3, and then the manipulator assembly 2 drives the movable clamping platform 4 to descend. At this moment, the claw part 21 under the manipulator assembly 2 drives the movable clamping platform 4 to descend, and the movable clamping platform 4 drives the internal movable clamping rod 41 to descend. When the contact 9 at the bottom of the movable clamping rod 41 is squeezed on the surface of the thin shell 103, the claw part 21 drives the movable clamping platform 4 to stop descending.

[0043] Furthermore, when the bottom of the contact 9 is squeezed against the surface of the thin shell 103, the shell of the contact 9 is deformed, so that the bottom of the contact 9 is completely fitted with the surface of the thin shell 103, that is, the material in the No. 2 molding cavity 91 will not leak from the contact point between the contact 9 and the surface of the thin shell 103, and the top of the material in the No. 2 molding cavity 91 is sealed by the stop ball 7, so that the material hardens in the No. 1 molding cavity 81 and the No. 2 molding cavity 91.

[0044] Furthermore, the material is injected into the open hard tube 8 from the hose 6 through the injection needle, and the material in the No. 1 molding cavity 81 and the No. 2 molding cavity 91 is hardened to form a clamping column 101, and the bottom of the clamping column 101 forms a clamping surface 102 on the hardened surface of the thin shell 103, that is, the clamping surface 102 can be completely fitted with the surface of the thin shell 103, so that the curvature of the surface of the thin shell 103 can be adapted through the clamping surface 102. Then, the entire batch of thin shells 103 can be positioned, which is convenient for workers to process.

[0045] At the same time, the one-way feeding device composed of the open hard tube 8, the hose 6 and the contact 9 has a low cost, and can be replaced and used for different thin shells 103, that is, the clamp can be suitable for thin shells 103 with different curved surfaces. It is cleverly designed and easy to operate.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fixture that can adapt to the curved surface of a thin shell, characterized by: The main body is composed of a reciprocating conveying platform assembly, a manipulator assembly, a fixed clamping platform, a movable clamping platform, an open hard tube, a thin shell and a positioning sensor; the manipulator assembly is provided with a claw part, a cylinder part and a motor part, the movable clamping platform is fixedly connected to the bottom of the claw part, the fixed clamping platform is installed on the reciprocating conveying platform assembly, and the positioning sensor is connected between the movable clamping platform and the claw part; the fixed clamping platform and the movable clamping platform are respectively provided with a fixed clamping rod and a dynamic clamping rod, and the fixed clamping platform and the movable clamping platform are respectively provided with three adjustable clamping seats arranged side by side, and positioning nuts are provided between the adjustable clamping seat and the fixed clamping rod and the dynamic clamping rod; the bottom of the dynamic clamping rod is provided with an open hard tube, a hose and a contact, and the hose and the contact are respectively connected to the two ends of the open hard tube; the hose and the open hard tube are respectively provided with a feeding cavity and a No. 1 molding cavity, and the feeding cavity and the No. 1 molding cavity are through-connected; the open hard tube A stop ball and a compression spring are provided in the inner upper section. The stop ball is circular and presses against the inner upper end of the open hard tube, and the compression spring presses against the bottom of the stop ball, that is, the open hard tube is formed into a one-way feeding device through the stop ball and the compression spring; a No. 2 forming cavity in a cylindrical hollow shape is provided inside the contact, and the contact is made of hard rubber material. When the bottom of the contact is squeezed on the surface of the thin shell, the contact shell is deformed, so that the bottom of the contact is completely fitted with the surface of the thin shell, that is, the material in the No. 2 forming cavity will not leak from the contact point between the contact and the thin shell surface; the contact is sleeved on the bottom of the open hard tube, and the open hard tube extends into the contact at one-third; the bottom of the contact is provided with an inwardly concave contact slope; the material in the No. 1 forming cavity and the No. 2 forming cavity forms a clamping column after hardening, and the bottom of the clamping column forms a clamping surface on the hardened surface of the thin shell; when in use, the material is injected into the open hard tube from the hose through the injection needle.

2. The fixture capable of adapting to the curved surface of a thin shell according to claim 1, characterized in that: Both ends of the three adjustable clamping seats on the fixed clamping platform and the movable clamping platform are sleeved on the fixed clamping platform and the movable clamping platform and can slide, and the fixed clamping platform and the movable clamping platform are symmetrical.

3. The fixture capable of adapting to the curved surface of a thin shell according to claim 1, characterized in that: The surfaces of the fixed clamping rod and the dynamic clamping rod are both provided with threads, and the threads are engaged with the positioning nuts. After the fixed clamping rod is inserted into the adjustable clamping seat of the fixed clamping platform, the positional relationship between the fixed clamping rod and the adjustable clamping seat is limited by the positioning nuts located on the upper and lower surfaces of the adjustable clamping seat, that is, the fixed clamping rod can be translated and telescopically moved up and down in the adjustable clamping seat of the fixed clamping platform. Similarly, after the dynamic clamping rod is inserted into the adjustable clamping seat of the movable clamping platform, the positional relationship between the dynamic clamping rod and the adjustable clamping seat is limited by the positioning nuts located on the upper and lower surfaces of the adjustable clamping seat, that is, the dynamic clamping rod can be translated and telescopically moved up and down in the adjustable clamping seat of the movable clamping platform.

4. The fixture capable of adapting to the curved surface of a thin shell according to claim 1, wherein: The three fixed clamping rods are installed in the adjustable clamping seat of the fixed clamping platform, and the three fixed clamping rods are arranged in a triangle, that is, the three points on the top of the three fixed clamping rods determine a plane; similarly, the three movable clamping rods are installed in the adjustable clamping seat of the movable clamping platform, and the three movable clamping rods are arranged in a triangle.

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