Multi-degree-of-freedom clamping base for machining complex curved surface

Abstract

The utility model relates to clamping base technical field, concretely is a kind of multi-degree-of-freedom clamping base for complex curved surface machining.The utility model, including workbench, the upper surface of workbench is equipped with clamping device, the clamping device includes base, the lower surface of base is movably connected with workbench, one end of base is fixedly connected with control box, the upper surface of base is fixedly connected with two fixed blocks, the inside of two fixed blocks is rotatably connected with screw rod, the arc surface of screw rod is connected with moving block, the upper surface of moving block is fixedly connected with electric rotary table, the upper surface of electric rotary table is fixedly connected with rotating seat.Solve when using traditional multi-degree-of-freedom clamping base to complex curved surface machining clamping, since the clamping of traditional multi-degree-of-freedom clamping base to complex curved surface cannot better adapt to complex curved surface, thereby in clamping, it is easy to cause complex curved surface clamping not tight problem.

Description

Technical Field

[0001] This utility model relates to the field of clamping base technology, and in particular to a multi-degree-of-freedom clamping base for machining complex curved surfaces. Background Technology

[0002] The main body of the multi-degree-of-freedom clamping base for machining complex curved surfaces consists of a base, control box, fixing plate, clamping block, lead screw, etc.

[0003] Existing technologies, such as the utility model with publication number CN206883498U, specifically disclose a multi-degree-of-freedom resistor clamping device, including a clamping device base, two supporting columns mounted on the clamping device base, a crossbeam disposed between the two supporting columns, the crossbeam and the supporting columns connected by a slider, two lugs respectively disposed at both ends of the crossbeam, screws installed in the lugs, the screws fixing the bottom of a hydraulic cylinder to the lugs, the bottom of the hydraulic cylinder being rotatable around the screws, a stainless steel cylinder barrel disposed on the bottom of the hydraulic cylinder, a conical piston installed inside the stainless steel cylinder barrel, the conical piston being connected to a piston rod. This novel multi-degree-of-freedom resistor clamping device has advantages such as good flexibility, multiple degrees of freedom, and fast clamping speed, and can solve the problem of limited degrees of freedom in resistor clamping equipment.

[0004] The following defects were found in the above-mentioned content: When using a traditional multi-degree-of-freedom clamping base to clamp complex curved surfaces, the traditional multi-degree-of-freedom clamping base cannot better adapt to the complex curved surfaces, which easily leads to the complex curved surfaces not being clamped tightly. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology where, when using traditional multi-degree-of-freedom clamping bases to clamp complex curved surfaces, the clamping of complex curved surfaces is not well adapted to the complex curved surfaces, which easily leads to the complex curved surfaces not being clamped tightly. Therefore, a multi-degree-of-freedom clamping base for machining complex curved surfaces is proposed.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a multi-degree-of-freedom clamping base for machining complex curved surfaces, comprising a worktable, a clamping device on the upper surface of the worktable, a base, a control box fixedly connected to one end of the base, two fixed blocks fixedly connected to the upper surface of the base, a lead screw rotatably connected inside each of the two fixed blocks, a moving block threadedly connected to the arc surface of the lead screw, an electric rotary table fixedly connected to the upper surface of the moving block, a rotating seat fixedly connected to the upper surface of the electric rotary table, a rotating rod rotatably connected inside the rotating seat, a rotating block fixedly connected to the arc surface of the rotating rod, a fixing pin threadedly connected inside the rotating seat, one end of the fixing pin engaging with the rotating block, an electric lifting rod fixedly connected to the upper surface of the rotating block, a connecting plate fixedly connected to the upper surface of the electric lifting rod, two rollers rotatably connected inside the connecting plate, a limit plate slidably connected to the arc surfaces of the two rollers, and the surface of the limit plate engaging with the connecting plate. The connecting plate is rotatably connected. A rocker arm is fixedly connected to the surface of the roller. The surface of the rocker arm is fixedly connected to a limiting plate. Several limiting holes are evenly opened on the side of the two limiting plates that are far from each other. A pin is threadedly connected to the corresponding internal thread of the connecting plate. The arc surface of the pin is threadedly connected to one of the limiting holes. A rotating rod is rotatably connected to the inside of the rocker arm. A connecting block is fixedly connected to the arc surface of the rotating rod. A servo motor is fixedly connected to one end of the rotating rod. A limiting frame is fixedly connected to the arc surface of the servo motor. One end of the limiting frame is fixedly connected to the rocker arm. A wire is fixedly connected to one end of the servo motor. The other end of the wire is fixedly connected to the limiting frame. An electric indexing table is fixedly connected to one end of the connecting block. A connecting block is fixedly connected to the other end of the electric indexing table. A fixing plate is fixedly connected to the side of the connecting block that is far from the electric indexing table. A limiting block is fixedly connected to the side of the connecting block that is far from the electric indexing table. A threaded rod is threadedly connected to the inside of the limiting block. A clamping block is fixedly connected to the end of the threaded rod that is close to the fixing plate. One end of the clamping block is slidably connected to the connecting block.

[0007] The effect achieved by the above components is as follows: when it is necessary to clamp complex curved surfaces with multiple degrees of freedom, the two lead screws can be rotated to move the moving block, which in turn moves the fixed plate and clamping block to the appropriate position. Then, the control box is activated to start the electric rotary table, electric lifting rod, and electric indexing table to move the fixed plate and clamping block to the appropriate position. The rotating rod and limit plate are rotated to move the fixed plate and clamping block to the appropriate position, and then fixed. The servo motor is used to move the fixed plate and clamping block to the appropriate position again. Finally, the threaded rod is rotated to push the clamping block to move towards the fixed plate, thus achieving the effect of clamping complex curved surfaces.

[0008] Preferably, a motor is fixedly connected to one end of the lead screw, a wire is fixedly connected to the other end of the motor, the other end of the wire is fixedly connected to the base, a support frame is fixedly connected to the arc surface of the motor, and one end of the support frame is fixedly connected to the base.

[0009] The effect achieved by the above components is that the lead screw can be rotated by a motor, thus achieving a more labor-saving clamping effect on complex curved surfaces.

[0010] Preferably, the lead screw has a support block rotatably connected to its arc surface, and the lower surface of the support block is fixedly connected to the base.

[0011] The effect achieved by the above components is that the support block serves to support the lead screw.

[0012] Preferably, one end of the rotating rod is fixedly connected to a crank handle, and the end of the threaded rod away from the clamping block is fixedly connected to a handle.

[0013] The effect achieved by the above components is that the rotating rod can be rotated by the crank, and the threaded rod can be rotated by the handle, so as to achieve the effect of clamping complex curved surfaces with less effort.

[0014] Preferably, a rubber pad is fixedly connected to the side of the fixing plate near the clamping block, and the surface of the rubber pad is provided with anti-slip texture.

[0015] The effect achieved by the above components is that the rubber pad can increase the friction on complex curved surfaces, thereby further clamping the complex curved surfaces.

[0016] Preferably, one end of the base is provided with a fixing device, the fixing device includes a guide rail, the guide rail is internally threaded with a screw pin, one end of the screw pin is engaged with a slider, the surface of the slider is slidably connected to the guide rail, the end of the slider away from the base is fixedly connected to a fixing frame, one end of the fixing frame is slidably connected to the worktable, and the fixing frame is internally threaded with a screw rod.

[0017] The effect achieved by the above components is as follows: when it is necessary to fix the clamping device on the worktable, pull out the screw, move the slider so that one end of the fixing frame contacts the worktable, and then rotate the screw to press the base to achieve the effect of fixing the clamping device.

[0018] Preferably, a crank handle is fixedly connected to the end of the screw away from the pad, and a pad is fixedly connected to the end of the screw near the base.

[0019] The above components achieve the following effects: the screw can be rotated by turning the crank handle, which saves effort; the pad increases the contact area, thereby further securing the clamping device.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] In this invention, when clamping complex curved surfaces with multiple degrees of freedom, the control box is first activated to control two motors to drive the lead screw to rotate, causing the slider to move until it reaches a suitable position. Then, the control box controls the electric rotary table to rotate to the appropriate position. Next, the fixing pin is removed, and the rocker handle is turned to rotate the rotating rod, causing the connecting block to rotate to the appropriate position. Then, the fixing pin is inserted, and the control box is activated to control the electric lifting rod to rise and fall to the appropriate position. Then, the two pins are removed, and the limit plate is rotated, causing the roller and rocker to rotate to the appropriate position. The pins are then inserted, and the servo motor rotates the rotating rod, causing the connecting block to rotate to a certain position. The control box then controls the electric indexing table to rotate to the appropriate position. The handle is turned to rotate the threaded rod, which is threadedly connected to the limit block. Therefore, the threaded rod, carrying the clamping block, moves towards the fixed plate until the appropriate position is reached. The complex curved surface is then placed between the fixed plate and the clamping block, and the handle is turned again until the complex curved surface is clamped. The rubber pad increases the friction on the complex curved surface, further clamping it.

[0022] In this invention, when it is necessary to fix the clamping device on the workbench, pull out the screw, move the slider so that one end of the fixing frame contacts the workbench, then insert the screw, turn the handle to move the screw downward, and move the pad downward until the clamping device can be fixed. When it is not necessary to fix it, turn the handle to move the screw upward, then pull out the screw, move the slider away from the base until the fixing frame does not affect other work, and then insert the screw. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This utility model Figure 1 A side view of the structure;

[0025] Figure 3 This is a schematic diagram of the clamping device of this utility model;

[0026] Figure 4 This utility model Figure 3 A magnified view of part A;

[0027] Figure 5 This utility model Figure 3 A magnified view of section B;

[0028] Figure 6 This is a schematic diagram of the fixing device of this utility model.

[0029] Legend: 1. Workbench; 2. Clamping device; 201. Base; 202. Control box; 203. Fixing block; 204. Lead screw; 205. Support block; 206. Motor; 207. Wire; 208. Support frame; 209. Moving block; 210. Electric rotary table; 211. Rotating seat; 212. Rotating rod; 213. Handle; 214. Fixing pin; 215. Rotating block; 216. Electric lifting rod; 217. Connecting plate; 218. Roller; 219. Rocker arm; 220. 221. Limiting plate; 222. Limiting hole; 223. Rotating rod; 224. Servo motor; 225. Wire; 226. Limiting frame; 227. Connecting block; 228. Electric indexing table; 229. Connecting block; 230. Fixing plate; 231. Clamping block; 232. Threaded rod; 233. Limiting block; 234. Rubber pad; 235. Handle; 36. Pin; 37. Fixing device; 31. Guide rail; 32. Slider; 33. Screw pin; 34. Fixing frame; 35. Screw; 36. Pad; 37. Crank handle. Detailed Implementation

[0030] Reference Figure 1 and Figure 2 As shown, this utility model provides a technical solution: a multi-degree-of-freedom clamping base for machining complex curved surfaces, including a worktable 1, a clamping device 2 on the upper surface of the worktable 1, and a fixing device 3 at one end of the base 201.

[0031] The specific setup and function of its clamping device 2 and fixing device 3 will be explained below.

[0032] Reference Figure 3 and Figure 4 and Figure 5As shown in this embodiment: the clamping device 2 includes a base 201, the lower surface of which is movably connected to the worktable 1. A control box 202 is fixedly connected to one end of the base 201. Two fixing blocks 203 are fixedly connected to the upper surface of the base 201. A lead screw 204 is rotatably connected inside each of the two fixing blocks 203. A moving block 209 is threadedly connected to the arc surface of the lead screw 204. An electric rotary table 210 is fixedly connected to the upper surface of the moving block 209. A rotating seat 211 is fixedly connected to the upper surface of the electric rotary table 210. A rotating rod 212 is rotatably connected inside the rotating seat 211. A rotating block 215 is fixedly connected to the arc surface of the rotating rod 212. A fixing pin 214 is threadedly connected inside the rotating seat 211. One end of the fixing pin 214... A rotating block 215 is engaged with the upper surface of the rotating block 215, and an electric lifting rod 216 is fixedly connected to the upper surface of the electric lifting rod 216. A connecting plate 217 is fixedly connected to the upper surface of the electric lifting rod 216. Two rollers 218 are rotatably connected inside the connecting plate 217. The arc surfaces of the two rollers 218 are slidably connected to a limiting plate 220. The surface of the limiting plate 220 is rotatably connected to the connecting plate 217. A rocker arm 219 is fixedly connected to the surface of the rollers 218. The surface of the rocker arm 219 is fixedly connected to the limiting plate 220. Several limiting holes 221 are evenly opened on the side of the two limiting plates 220 that are far apart from each other. A corresponding threaded pin 235 is threaded to the inner surface of the connecting plate 217. The arc surface of the pin 235 is threaded to one of the limiting holes 221. The inner rotating surface of the rocker arm 219 is rotatably connected to the limiting plate 217. A rotating rod 222 is connected to a connecting block 226, and a servo motor 223 is fixedly connected to one end of the rotating rod 222. A limit frame 225 is fixedly connected to the arc surface of the servo motor 223. One end of the limit frame 225 is fixedly connected to a rocker arm 219. A wire 224 is fixedly connected to one end of the servo motor 223, and the other end of the wire 224 is fixedly connected to the limit frame 225. An electric indexing table 227 is fixedly connected to one end of the connecting block 226, and a connecting block 228 is fixedly connected to the other end of the electric indexing table 227. A fixing plate 229 is fixedly connected to the side of the connecting block 228 away from the electric indexing table 227, and a limit block 232 is fixedly connected to the side of the connecting block 228 away from the electric indexing table 227. The internal threaded connection includes a threaded rod 231. A clamping block 230 is fixedly connected to one end of the threaded rod 231 near the fixed plate 229. One end of the clamping block 230 is slidably connected to a connecting block 228. When multi-degree-of-freedom clamping of complex curved surfaces is required, the two lead screws 204 can be rotated to move the moving block 209, which in turn moves the fixed plate 229 and clamping block 230 to a suitable position. Then, the control box 202 activates the electric rotary table 210, the electric lifting rod 216, and the electric indexing table 227 to move the fixed plate 229 and clamping block 230 to the appropriate position. The rotating rod 212 and the limiting plate 220 are then rotated to move the fixed plate 229 and clamping block 230 to the appropriate position, which is then fixed. Finally, the servo motor 223 moves the fixed plate 229 and clamping block 230 to the appropriate position again.Rotating the threaded rod 231 pushes the clamping block 230 towards the fixed plate 229, achieving the effect of clamping complex curved surfaces. One end of the lead screw 204 is fixedly connected to a motor 206, and the other end of the motor 206 is fixedly connected to a wire 207. The other end of the wire 207 is fixedly connected to the base 201. A support frame 208 is fixedly connected to the arc surface of the motor 206, and one end of the support frame 208 is fixedly connected to the base 201. The motor 206 can be used to rotate the lead screw 204, achieving a more effortless clamping effect on complex curved surfaces. A support block 205 is rotatably connected to the arc surface of the lead screw 204. The lower surface of the support block 205 is fixedly connected to the base 201, and the support block 205 serves to support the lead screw 204. A crank handle 213 is fixedly connected to one end of the rotating rod 212, and a handle 234 is fixedly connected to the end of the threaded rod 231 away from the clamping block 230. The rotating rod 212 can be rotated using the crank handle 213, and the threaded rod 231 can be rotated using the handle 234, achieving a more effortless clamping effect on complex curved surfaces. A rubber pad 233 is fixedly connected to the side of the fixing plate 229 near the clamping block 230. The surface of the rubber pad 233 has anti-slip textures, which increases the friction against complex curved surfaces, further enhancing the clamping effect.

[0033] Reference Figure 6 As shown in this embodiment: the fixing device 3 includes a guide rail 31, with a screw pin 33 internally threaded onto the guide rail 31. One end of the screw pin 33 is engaged with a slider 32, and the surface of the slider 32 is slidably connected to the guide rail 31. A fixing frame 34 is fixedly connected to the end of the slider 32 away from the base 201, and one end of the fixing frame 34 is slidably connected to the worktable 1. A screw rod 35 is internally threaded onto the fixing frame 34. When it is necessary to fix the clamping device 2 on the worktable 1, the screw pin 33 is pulled out, the slider 32 is moved so that one end of the fixing frame 34 contacts the worktable 1, and then the screw rod 35 is rotated to press the base 201, thus achieving the effect of fixing the clamping device 2. A crank handle 37 is fixedly connected to the end of the screw rod 35 away from the pad 36, and the pad 36 is fixedly connected to the end of the screw rod 35 near the base 201. The screw rod 35 can be rotated by turning the crank handle 37, which is more labor-saving. The pad 36 increases the contact area, further achieving the effect of fixing the clamping device 2.

[0034] Working principle: In this invention, when clamping complex curved surfaces with multiple degrees of freedom is required, the control box 202 is first activated to control the two motors 206 to drive the lead screw 204 to rotate, thus moving the slider 32 until it reaches a suitable position. Then, the control box 202 controls the electric rotary table 210 to rotate to the appropriate position. Next, the fixing pin 214 is pulled out, and the rotating rod 212 is rotated by shaking the handle 213, causing the connecting block 226 to rotate to the appropriate position. Then, the fixing pin 214 is inserted again, and the control box 202 is activated to control the electric lifting rod 216 to rise and fall until it reaches the appropriate position. Finally, the two pins 235 are pulled out. Rotating the limiting plate 220 causes the roller 218 and rocker arm 219 to rotate until they reach the appropriate position. Inserting the pin 235, the servo motor 223 then rotates the rotating rod 222, causing the connecting block 226 to rotate to a certain position. The control box 202 then rotates the electric indexing table 227 to the appropriate position. Rotating the handle 234 rotates the threaded rod 231, which is threadedly connected to the limiting block 232. Therefore, the threaded rod 231, along with the clamping block 230, moves towards the fixed plate 229 until it reaches the appropriate position. The complex curved surface is then placed between the fixed plate 229 and the clamping block 230. Rotating the handle 234 continues until the complex curved surface is clamped. The rubber pad 233 increases the friction on the complex curved surface, further clamping it.

[0035] In this utility model, when it is necessary to fix the clamping device 2 on the workbench 1, pull out the screw 33, move the slider 32 so that one end of the fixing frame 34 contacts the workbench 1, then insert the screw 33, turn the handle 37 to move the screw 35 downward, and drive the pad 36 downward until the clamping device 2 can be fixed. When it is not necessary to fix it, turn the handle 37 to move the screw 35 upward, then pull out the screw 33, move the slider 32 away from the base 201 until the fixing frame 34 does not affect other work, and then insert the screw 33.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A multi-degree-of-freedom clamping base for machining complex curved surfaces, comprising a worktable (1), characterized in that: The upper surface of the workbench (1) is provided with a clamping device (2). The clamping device (2) includes a base (201). The lower surface of the base (201) is movably connected to the workbench (1). One end of the base (201) is fixedly connected to a control box (202). The upper surface of the base (201) is fixedly connected to two fixing blocks (203). The interior of each of the two fixing blocks (203) is rotatably connected to a lead screw (204). The arc surface of the lead screw (204) is threadedly connected to a moving block (209). The upper surface of the moving block (209) is fixedly connected to an electric rotary table (210). The upper surface of the electric rotary table (210) is fixedly connected to a rotating seat (211). 1) The rotating seat (211) is internally connected to a rotating rod (212), and a rotating block (215) is fixedly connected to the arc surface of the rotating rod (212). A fixing pin (214) is internally threaded onto the rotating seat (211), and one end of the fixing pin (214) is engaged with the rotating block (215). An electric lifting rod (216) is fixedly connected to the upper surface of the rotating block (215), and a connecting plate (217) is fixedly connected to the upper surface of the electric lifting rod (216). Two rollers (218) are internally connected to the connecting plate (217), and a limiting disk (220) is slidably connected to the arc surface of the two rollers (218). The surface of the limiting disk (220) is rotatably connected to the connecting plate (217). A rocker arm (219) is fixedly connected to the surface of the wheel (218). The surface of the rocker arm (219) is fixedly connected to the limiting plate (220). Several limiting holes (221) are evenly opened on the side of the two limiting plates (220) that are far apart from each other. A pin (235) is threadedly connected to the corresponding internal thread of the connecting plate (217). The arc surface of the pin (235) is threadedly connected to one of the limiting holes (221). A rotating rod (222) is rotatably connected inside the rocker arm (219). A connecting block (226) is fixedly connected to the arc surface of the rotating rod (222). A servo motor (223) is fixedly connected to one end of the rotating rod (222). A limiting bracket (225) is fixedly connected to the arc surface of the servo motor (223). The limiting frame (225) is fixedly connected to a rocker arm (219) at one end. A wire (224) is fixedly connected to one end of the servo motor (223), and the other end of the wire (224) is fixedly connected to the limiting frame (225). An electric indexing table (227) is fixedly connected to one end of the connecting block (226), and a connecting block (228) is fixedly connected to the other end of the electric indexing table (227). A fixing plate (229) is fixedly connected to the side of the connecting block (228) away from the electric indexing table (227), and a limiting block (232) is fixedly connected to the side of the connecting block (228) away from the electric indexing table (227). A threaded rod (231) is threaded into the internal part of the limiting block (232).A clamping block (230) is fixedly connected to one end of the threaded rod (231) near the fixed plate (229), and one end of the clamping block (230) is slidably connected to the connecting block (228).

2. The multi-degree-of-freedom clamping base for machining complex curved surfaces according to claim 1, characterized in that: One end of the lead screw (204) is fixedly connected to a motor (206), and the other end of the motor (206) is fixedly connected to a wire (207). The other end of the wire (207) is fixedly connected to the base (201). A support frame (208) is fixedly connected to the arc surface of the motor (206), and one end of the support frame (208) is fixedly connected to the base (201).

3. The multi-degree-of-freedom clamping base for machining complex curved surfaces according to claim 1, characterized in that: The lead screw (204) is rotatably connected to a support block (205), and the lower surface of the support block (205) is fixedly connected to the base (201).

4. The multi-degree-of-freedom clamping base for machining complex curved surfaces according to claim 1, characterized in that: One end of the rotating rod (212) is fixedly connected to a crank (213), and the end of the threaded rod (231) away from the clamp (230) is fixedly connected to a handle (234).

5. A multi-degree-of-freedom clamping base for machining complex curved surfaces according to claim 1, characterized in that: A rubber pad (233) is fixedly connected to the side of the fixing plate (229) near the clamping block (230), and the surface of the rubber pad (233) is provided with anti-slip texture.

6. The multi-degree-of-freedom clamping base for machining complex curved surfaces according to claim 1, characterized in that: One end of the base (201) is provided with a fixing device (3), the fixing device (3) includes a guide rail (31), the guide rail (31) is internally threaded with a screw (33), one end of the screw (33) is engaged with a slider (32), the surface of the slider (32) is slidably connected to the guide rail (31), the end of the slider (32) away from the base (201) is fixedly connected with a fixing frame (34), one end of the fixing frame (34) is slidably connected to the worktable (1), and the fixing frame (34) is internally threaded with a screw (35).

7. A multi-degree-of-freedom clamping base for machining complex curved surfaces according to claim 6, characterized in that: A crank (37) is fixedly connected to the end of the screw (35) away from the pad (36), and a pad (36) is fixedly connected to the end of the screw (35) near the base (201).

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