A CNC tooling fixture

Abstract

This invention belongs to the field of fixture technology, specifically a CNC tooling fixture, including a clamping body with a clamping groove inside for placing workpieces; several clamping plate placement slots are opened inside the clamping body; clamping plates are slidably installed inside the clamping plate placement slots, and the clamping plates are used to clamp the workpieces; several tightening nuts are rotatably connected to the top of the clamping body, and after the tightening nuts rotate, they respectively press and fix each clamping plate; a tightening device is slidably installed on the top of the clamping body; several tightening rotating columns are rotatably installed on the tightening device; a nut rotating head is slidably installed at the bottom of the tightening rotating columns; this invention uses a third threaded rod to drive multiple tightening rotating columns to move synchronously, simultaneously locking the tightening rotating columns in the position of the tightening nuts for tightening the screws. During use, this prevents the screws from hitting the workpieces that are not clamped and placed, thus improving the workpiece machining accuracy.

Description

Technical Field

[0001] This invention belongs to the field of fixtures, specifically a CNC tooling fixture. Background Technology

[0002] Tooling fixtures are a very common auxiliary production and processing component in the industrial manufacturing industry. They limit and fix the unprocessed workpiece, thereby facilitating the processing and manufacturing process of the workpiece. When performing CNC (Computer Numerical Control) machining, it is often necessary to clamp and fix the workpiece to be processed using tooling fixtures.

[0003] When machining workpieces, if multiple workpieces are clamped in a fixture, they need to be aligned and screwed on one by one. The tightness of the screws is not easy to control. Some screws may be tightened too much, causing the clamping jaws to deviate, which in turn causes the workpieces to shift, resulting in a decrease in workpiece accuracy.

[0004] Therefore, the present invention provides a CNC tooling fixture. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A CNC tooling fixture of this invention includes a clamping body, the interior of which is provided with clamping grooves for placing workpieces; the interior of the clamping body has several clamping plate placement slots; clamping plates are slidably installed inside the clamping plate placement slots, and the clamping plates are used to clamp the workpieces; several tightening nuts are rotatably connected to the top of the clamping body, and after the several tightening nuts rotate, they respectively press and fix each clamping plate; a tightening device is slidably installed on the top of the clamping body; several tightening rotating columns are rotatably installed on the tightening device; a nut rotating head is slidably installed at the bottom end of the tightening rotating column; a third threaded rod is rotatably installed at the bottom end of the tightening device, and after the third threaded rod rotates, it drives the multiple tightening rotating columns to rotate. Before processing the workpieces, multiple workpieces are first placed on the upper end of the clamping grooves, and then the multiple tightening rotating columns are moved to the upper end of the multiple tightening nuts, with the bottom end of the tightening rotating columns perpendicular to the upper end of the clamping nuts. After positioning the nut in the groove, rotate the tightening rotating column. A nut rotating head is slidably mounted on the bottom of the tightening rotating column, with a bit at its bottom. A limit block is provided on the hexagonal chuck to prevent the nut rotating head from falling off. The tightening rotating column engages with the tightening nut. The top of the tightening nut has a matching groove corresponding to the bit. After the bit is inserted into the matching groove, rotating the bit will drive the tightening nut to rotate. This simultaneous rotation of the tightening nut allows multiple workpieces to be placed and tightened simultaneously when multiple rotating tightening nuts rotate synchronously. Synchronous tightening ensures even force distribution on the workpiece during tightening. The rotation of the tightening nut drives the clamping telescopic rod to rotate and engage. The clamping telescopic rod and the tightening nut form a worm gear mechanism, which facilitates fixing the position after tightening, reducing workpiece vibration during processing and minimizing processing errors. The workpiece is then processed until completion.

[0007] Preferably, a threaded retaining ring is fixedly installed on the side wall of the clamping body. A first threaded rod is rolledly connected inside the threaded retaining ring. A cleaning plate moving ring is threadedly connected to the outer wall of the first threaded rod. A cleaning plate is fixedly installed on the side wall of the cleaning plate moving ring. The cleaning plate slides on the inner wall of the clamping groove. After the workpiece is processed and the clamping plate is reset, the residue generated during the workpiece processing will remain on the inner wall of the clamping groove, the clamping plate placement groove, or adhere to the inner wall of the clamping plate. When processing small parts, the workpiece is clamped again, and the remaining residue will be clamped together with the workpiece during clamping. The residue causes movement of the clamping plate. The influence of the clamping force of each clamping plate on the workpiece causes deviations, which may lead to workpiece displacement and deviations in the processing process and accuracy. Therefore, a threaded fixing ring is fixedly connected to the side wall of the clamping body. A first threaded rod is rolledly connected inside the threaded fixing ring. A cleaning plate moving ring is rolledly connected to the outer wall of the first threaded rod. A cleaning plate is fixedly connected to the outer wall of the cleaning plate moving ring. The cleaning plate slides inside the clamping groove and can rotate the first threaded rod. The first threaded rod drives the cleaning plate on the outer wall to slide on the inner wall of the clamping groove, cleaning the side wall of the clamping plate and the inner wall of the clamping groove, thereby facilitating and improving the accuracy of the next workpiece processing.

[0008] Preferably, the tightening device includes two second threaded rods that are rolledly connected to the top of the clamp body, three sliding rods that are slidably installed inside the third threaded rod, the bottom end of the sliding rods being fixedly installed at the top of the clamp body, a plurality of square boxes being fixedly installed at the bottom end of the third threaded rod, a turbine rotating tooth being fixedly installed on the outer wall of the tightening rotating column, the third threaded rod being rolledly connected to the inner wall of the square box, and the outer wall of the third threaded rod being threadedly connected to the turbine rotating tooth.

[0009] Preferably, a fixing plate is fixedly installed at the top of the tightening rotating column, a first spring is fixedly installed at the top of the fixing plate, a fixing rotating strip is fixedly installed on the outer wall of the top of the tightening rotating column, a first limiting ring is slidably installed on the outer wall of the top of the tightening rotating column, and the first spring is located between the first limiting ring and the fixing plate.

[0010] Preferably, a square protrusion is fixedly installed on the outer wall of the first limiting ring, an adjusting round tooth is slidably installed on the outer wall of the square protrusion, a fourth threaded rod is rolledly installed on the inner wall of the square box, a second limiting ring is fixedly installed on the top end of the first limiting ring, a second spring is fixedly installed on the top end of the second limiting ring, and a sliding groove is fixedly installed on the inner wall of the adjusting round tooth.

[0011] Preferably, two fixed protrusions are fixedly installed on the side wall of the square box, a fifth threaded rod is rolledly connected inside the fixed protrusions, a sliding ring is threadedly connected to the outer wall of the fifth threaded rod, a first air nozzle is fixedly installed at the bottom end of the sliding ring, and a second air nozzle is fixedly installed at the bottom end of the square box.

[0012] Preferably, a sealing ring is fixedly installed at the top of the inner wall of the square box, a fourth limiting ring is fixedly installed at the bottom of the sealing ring, a second limiting cylinder is fixedly installed on the outer wall of the fourth limiting ring, the end of the second limiting cylinder is fixedly installed on the inner wall of the square box, a third limiting ring is fixedly installed on the outer wall of the first limiting ring, and two first limiting cylinders are fixedly installed on the outer wall of the third limiting ring, the ends of the first limiting cylinders are fixedly installed on the inner wall of the square box.

[0013] Preferably, the top end of the tightening rotating column is slidably mounted on the inner wall of the adjusting round tooth. The adjusting round tooth is concentric with the tightening rotating column. When the adjusting round tooth, the first limiting ring, and the tightening rotating column remain concentric, the fourth threaded rod and the third threaded rod can slide smoothly when rotating, thereby maintaining stable operation and improving the accuracy of workpiece processing.

[0014] Preferably, the side wall of the fifth threaded rod is fixedly equipped with a second connecting tooth, and the outer wall of the third threaded rod is fixedly equipped with a plurality of first connecting teeth. The outer walls of the second connecting teeth mesh with the outer walls of the first connecting teeth. When the third threaded rod is rotated to tighten or loosen the screw by driving the tightening rotating column, the outer wall of the third threaded rod is fixedly equipped with the first connecting teeth, and the side wall of the fifth threaded rod is fixedly equipped with the second connecting teeth. When tightening or loosening, the first and second air jets blow gas out to the inner wall of the clamping plate placement groove, and the second air jet blows the inner wall of the top of the clamping body, blowing the debris generated after the workpiece is processed out of the inner wall of the clamping plate placement groove, improving the cleanliness of the inner wall of the clamping plate placement groove, and making the clamping plate slide more smoothly.

[0015] Preferably, the third and fourth threaded rods, which are rolled together on the inner walls of the multiple square boxes, extend out and are fixedly connected. The multiple square boxes are in a parallel position, and the fourth and third threaded rods inside the square boxes are also in the same position. Then, the fourth threaded rods inside the multiple square boxes are connected together, and the multiple third threaded rods inside the square boxes are connected together. When the nut rotating head moves to a suitable position, rotating the third and fourth threaded rods can engage the tightened nut with the nut rotating head, thereby driving the clamping plate to clamp the workpiece.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The CNC tooling fixture of the present invention drives multiple tightening rotating columns to move synchronously through a third threaded rod, simultaneously clamping the tightening rotating columns at the position of the tightening nut, and tightening the screws, thereby realizing the function of simultaneously tightening multiple screws. During use, the tightening degree of each screw is consistent, which improves the clamping jaw skew caused by inconsistent screw tightening degree and improves the workpiece machining accuracy.

[0018] 2. The CNC tooling fixture of the present invention improves the engagement between the tightening rotating column and the tightening nut by means of the first limiting ring and the tightening rotating column of the tightening device. This allows the nut rotating head to engage with the tightening nut in any position, facilitating the rotation of the tightening nut and controlling the clamping force of the clamping plate on the workpiece. When the fixture clamps the workpiece, the number of rotations of the nut rotating head can adjust the clamping force of the workpiece.

[0019] 3. The CNC tooling fixture of the present invention blows the tightening nut and the clamping telescopic rod through the first air nozzle and the second air nozzle to clean the machining residue on the surface of the tightening nut and the clamping telescopic rod, thereby improving the service life of the tightening nut and the clamping telescopic rod. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is an overall appearance drawing of the invention;

[0022] Figure 2 This is a side view of the invention.

[0023] Figure 3 This is a diagram of the cleaning plate transmission of the present invention;

[0024] Figure 4 This is a transmission diagram of the tightening rod structure of the present invention;

[0025] Figure 5 This is a diagram showing the internal structure of the tightening device of the present invention;

[0026] Figure 6 This is a diagram showing the location distribution of the tightening device of the present invention;

[0027] Figure 7 This is an exploded view of the distribution of the tightening device of the present invention;

[0028] Figure 8 This is a diagram showing the limiting connection position of the present invention;

[0029] Figure 9 This is a diagram showing the location of the jet nozzle structure of the present invention;

[0030] Figure 10 Yes, yes Figure 9 Enlarged view of point A in the middle;

[0031] In the picture:

[0032] 1. Clamp body; 12. Threaded retaining ring; 13. First threaded rod; 14. Cleaning plate; 141. Cleaning plate moving ring; 15. Clamping plate; 151. Clamping telescopic rod; 152. Tightening nut; 153. Clamping plate placement slot; 16. Clamping groove;

[0033] 2. Tightening device; 21. Second threaded rod; 22. Sliding rod; 23. Square box; 231. Third limiting ring; 232. Fourth limiting ring; 233. First limiting fixing cylinder; 234. Second limiting fixing cylinder; 235. Sealing ring; 237. Sliding ring; 238. Fixing protrusion plate; 2381. First air jet; 2382. Second air jet; 239. Fifth threaded rod; 2391. First connecting tooth; 2 392. Second connecting tooth; 24. Third threaded rod; 25. Tightening rotating column; 251. Turbine rotating tooth; 252. First spring; 253. Fixing plate; 254. Fixing rotating strip; 255. Hexagonal chuck; 26. Nut rotating head; 27. Fourth threaded rod; 28. First limiting ring; 29. ​​Adjusting round tooth; 291. Square protrusion; 292. Second limiting ring; 293. Second spring; 294. Sliding groove. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0035] like Figure 1-4 As shown in the figure, a CNC tooling fixture according to an embodiment of the present invention includes a clamping body 1, the interior of which is provided with a clamping groove 16 for placing a workpiece; the interior of the clamping body 1 is provided with a plurality of clamping plate placement grooves 153; clamping plates 15 are slidably installed inside the clamping plate placement grooves 153, and the clamping plates 15 are used to clamp the workpiece; a plurality of tightening nuts 152 are rotatably connected to the top of the clamping body 1, and the plurality of tightening nuts 152, after rotating, respectively press and fix each clamping plate 15; a tightening device 2 is slidably installed on the top of the clamping body 1; a plurality of tightening rotating columns 25 are rotatably installed on the tightening device 2; a nut rotating head 26 is slidably installed at the bottom end of the tightening rotating column 25; a third threaded rod 24 is rotatably installed at the bottom end of the tightening device 2, and the rotation of the third threaded rod 24 drives the plurality of tightening rotating columns 25 to rotate.

[0036] Specifically, before processing the workpieces, multiple workpieces are first placed on the upper end of the clamping groove 16. Then, multiple tightening rotating columns 25 are moved to the upper end of multiple tightening nuts 152. After the bottom end of the tightening rotating column 25 is vertically aligned with the groove position of the tightening nut 152, the tightening rotating column 25 is rotated. A nut rotating head 26 is slidably installed at the bottom end of the tightening rotating column 25. A bit is provided at the bottom end of the nut rotating head 26. A limit block is provided on the hexagonal chuck 255 to prevent the nut rotating head 26 from falling off. The tightening rotating column 25 engages with the tightening nut 152. The top end of the tightening nut 152 is provided with a mating groove corresponding to the bit. After being inserted into the mating groove, the rotating bit can drive the tightening nut 152 to rotate. The simultaneous rotation of the tightening nut 152 allows multiple workpieces to be placed and tightened at the same time as they rotate synchronously. This synchronous tightening ensures that the workpiece is subjected to uniform force during tightening. The rotation of the tightening nut 152 drives the clamping telescopic rod 151 to rotate and engage. The clamping telescopic rod 151 and the tightening nut 152 form a worm gear mechanism, which facilitates fixing the position after tightening, reducing workpiece vibration during processing, and helping to reduce processing errors. The workpiece is then processed until the processing is completed.

[0037] like Figure 3 As shown, a threaded retaining ring 12 is fixedly installed on the side wall of the clamping body 1. A first threaded rod 13 is rolledly connected inside the threaded retaining ring 12. A cleaning plate moving ring 141 is threadedly connected to the outer wall of the first threaded rod 13. A cleaning plate 14 is fixedly installed on the side wall of the cleaning plate moving ring 141. The cleaning plate 14 slides on the inner wall of the clamping groove 16.

[0038] Specifically, after the workpiece is processed and the clamping plate 15 is reset, the residue generated during the workpiece processing will remain on the inner wall of the clamping groove 16, the clamping plate placement groove 153, or adhere to the inner wall of the clamping plate 15. When processing small parts, the workpiece is clamped again, and the remaining residue will be clamped together with the workpiece during clamping. The residue affects the movement of the clamping plate 15, causing deviations in the clamping force of each clamping plate 15 on the workpiece, which may lead to workpiece displacement. This results in deviations in the processing process and accuracy. Therefore, the side wall of the clamping body 1 is fixed. A threaded retaining ring 12 is connected, and a first threaded rod 13 is rolled inside the threaded retaining ring 12. A cleaning plate moving ring 141 is rolled on the outer wall of the first threaded rod 13. A cleaning plate 14 is fixedly connected to the outer wall of the cleaning plate moving ring 141. The cleaning plate 14 slides inside the clamping groove 16 and can rotate the first threaded rod 13. The first threaded rod 13 drives the cleaning plate 14 on the outer wall to slide on the inner wall of the clamping groove 16, cleaning the side wall of the clamping plate 15 and the inner wall of the clamping groove 16, thereby facilitating and improving the accuracy of the next workpiece processing.

[0039] like Figure 1-4 As shown, the tightening device 2 includes two second threaded rods 21 that are rolledly connected to the top of the clamping body 1. Three sliding rods 22 are slidably installed inside the third threaded rod 24. The bottom end of the sliding rod 22 is fixedly installed at the top of the clamping body 1. Multiple square boxes 23 are fixedly installed at the bottom end of the third threaded rod 24. A turbine rotating tooth 251 is fixedly installed on the outer wall of the tightening rotating column 25. The third threaded rod 24 is rolledly connected to the inner wall of the square box 23. The outer wall of the third threaded rod 24 is threadedly connected to the turbine rotating tooth 251.

[0040] Specifically, after the workpiece is placed above the clamping body 1, when the tightening rotating column 25 is placed above the tightening nut 152, the third threaded rod 24 drives the tightening rotating column 25 to move downwards synchronously. In order to maintain the same height and thus align with the multiple tightening nuts 152 below, the top of the clamping body 1 is rolledly connected to two second threaded rods 21 and a sliding rod 22. The outer wall of the second threaded rod 21 is threadedly connected to the third threaded rod 24, and the sliding rod 22 slides on the inner wall of the third threaded rod 24. Rotating the two second threaded rods 21 causes the third threaded rod 24 to rise or fall. Lowering the third threaded rod 24, the bottom end of the third threaded rod 24 is fixedly connected to a square box 23, and the inner bottom of the square box 23 rolls... A tightening rotating column 25 is connected, and a turbine rotating tooth 251 is provided at the top of the tightening rotating column 25. A third threaded rod 24 is rolled inside the side of the square box 23. The third threaded rod 24 drives the square box 23 to move downward. The square box 23 brings the bottom end of the tightening rotating column 25 close to the tightening nut 152. When the tightening nut 152 engages with the bottom end of the tightening rotating column 25, the third threaded rod 24 is rotated. The third threaded rod 24 engages with the turbine rotating tooth 251, thereby driving the turbine rotating tooth 251 to rotate. The turbine rotating tooth 251 is fixedly connected to the tightening rotating column 25, so that the bottom end of the tightening rotating column 25 engages with the tightening nut 152, thereby rotating the tightening nut 152 to drive the clamping plate 15 to clamp the workpiece.

[0041] like Figure 4-5 As shown, a fixing plate 253 is fixedly installed on the top of the tightening rotating column 25, a first spring 252 is fixedly installed on the top of the fixing plate 253, a fixing rotating strip 254 is fixedly installed on the outer wall of the top of the tightening rotating column 25, a first limiting ring 28 is slidably installed on the outer wall of the top of the tightening rotating column 25, and the first spring 252 is located between the first limiting ring 28 and the fixing plate 253.

[0042] Specifically, when the tightening rotating column 25 moves directly above the tightening nut 152, the positions of the multiple tightening nuts 152 and the bottom ends of the multiple tightening rotating columns 25 are not necessarily fully engaged. If the tightening rotating column 25 is rotated directly, it may cause deviation and loss of precision control over the clamping. Therefore, a fixing plate 253 is fixedly installed at the top of the tightening rotating column 25, a first spring 252 is fixedly installed at the top of the fixing plate 253, a fixing rotating strip 254 is fixedly installed on the outer wall of the top of the tightening rotating column 25, and an adjusting round tooth 29 slides on the top of the tightening rotating column 25. When the tightening rotating column 25 moves to the position of the tightening nut 152, the position of the tightening nut 152 and the bottom ends of the tightening rotating column 25 are not necessarily fully engaged. When the top of the nut 152 is above the top, if the tightening nut 152 engages with the bottom of the tightening rotating column 25, the top of the tightening rotating column 25 will not engage with the inside of the first limiting ring 28. If the bottom of the tightening rotating column 25 does not engage with the tightening nut 152, the first limiting ring 28 can be rotated. The first limiting ring 28 drives the tightening rotating column 25 to rotate. The rotation of the tightening rotating column 25 will make the bottom of the tightening rotating column 25 engage with the tightening nut 152. When the tightening rotating column 25 engages with the tightening nut 152, the tightening rotating column 25 will pop out from the inside of the first limiting ring 28, thus completing the engagement of the bottom of the tightening rotating column 25 with the tightening nut 152.

[0043] like Figure 5-6 As shown, a square protrusion 291 is fixedly installed on the outer wall of the first limiting ring 28, and an adjusting round tooth 29 is slidably installed on the outer wall of the square protrusion 291. A fourth threaded rod 27 is rolledly installed on the inner wall of the square box 23. A second limiting ring 292 is fixedly installed on the top of the first limiting ring 28, and a second spring 293 is fixedly installed on the top of the second limiting ring 292. A sliding groove 294 is fixedly installed on the inner wall of the adjusting round tooth 29.

[0044] Specifically, when the tightening nut 152 and the tightening rotating column 25 are moved to engage, the tightening rotating column 25 moves upward under pressure. However, when the fixed rotating strip 254 moves upward, it cannot directly engage with the inner sliding groove 294 of the first limiting ring 28, which may cause the tightening rotating column 25 to get stuck, thereby squeezing the tightening nut 152 and causing damage. Therefore, a second spring 293 is provided at the top of the first limiting ring 28. When the first limiting ring 28 cannot directly engage with the fixed rotating strip 254, the first limiting ring 28 can be rotated so that the fixed rotating strip 254 engages with the sliding groove 294 on the inner wall of the adjusting round tooth 29, reducing the squeezing problem that may be caused by the tightening nut 152 when the tightening rotating column 25 descends. A fourth threaded rod 27 is rolledly connected to the upper side wall of the square box 23, and a square protrusion is fixedly connected to the outer wall of the first limiting ring 28. 291. An adjusting tooth 29 is slidably mounted on the outer wall of the square protrusion 291. When the first limiting ring 28 needs to be rotated, the fourth threaded rod 27 can be rotated first. The fourth threaded rod 27 drives the adjusting tooth 29 engaged on the outer wall to rotate. The rotation of the adjusting tooth 29 drives the first limiting ring 28, which is slidably connected inside, to rotate. The adjusting tooth 29 is slidably connected to the first limiting ring 28 through the square protrusion 291, so that the first limiting ring 28 still has the ability to rise and fall when it rotates, thereby protecting the tightening nut 152 from being squeezed beyond the range. When the tightening nut 152 is engaged with the bottom end of the tightening rotating column 25, the top end of the tightening rotating column 25 pops out the first limiting ring 28, so that when the tightening rotating column 25 is rotated to adjust its position, it will not drive the tightening nut 152. At this time, even if the adjusting tooth 29 is rotated continuously, it will not drive the tightening rotating column 25 to rotate.

[0045] like Figure 9 As shown, two fixed protrusions 238 are fixedly installed on the side wall of the square box 23. A fifth threaded rod 239 is rolledly connected inside the fixed protrusions 238. A sliding ring 237 is threadedly connected to the outer wall of the fifth threaded rod 239. A first air nozzle 2381 is fixedly installed at the bottom end of the sliding ring 237. A second air nozzle 2382 is fixedly installed at the bottom end of the square box 23.

[0046] Specifically, after the workpiece is processed, the rotating column 25 can be rotated and tightened again, and the tightening nut 152 can be turned to a force that allows the workpiece to be moved. Then, the first air jet 2381 and the second air jet 2382 are vented. The first air jet 2381 and the second air jet 2382 blow at the same time, which can blow away and clean the residue that fell into the clamping plate placement groove 153 and the tightening nut 152 during the workpiece processing. This improves the smoothness of the meshing between the bottom of the tightening rotating column 25 and the tightening nut 152, reduces the possibility that residue may adhere to the clamping telescopic rod 151, and protects the clamping telescopic rod 151.

[0047] like Figure 8 As shown, a sealing ring 235 is fixedly installed at the top of the inner wall of the square box 23, a fourth limiting ring 232 is fixedly installed at the bottom of the sealing ring 235, a second limiting fixing cylinder 234 is fixedly installed on the outer wall of the fourth limiting ring 232, and the end of the second limiting fixing cylinder 234 is fixedly installed on the inner wall of the square box 23. A third limiting ring 231 is fixedly installed on the outer wall of the first limiting ring 28, and two first limiting fixing cylinders 233 are fixedly installed on the outer wall of the third limiting ring 231. The ends of the first limiting fixing cylinders 233 are fixedly installed on the inner wall of the square box 23.

[0048] Specifically, to improve the smoothness of engagement between the first limiting ring 28 and the top of the tightening rotating column 25, two first limiting fixing cylinders 233 and two second limiting fixing cylinders 234 are fixedly connected to the inner wall of the square box 23 when rotating the fourth threaded rod 27 and the third threaded rod 24. A third limiting ring 231 and a fourth limiting ring 232 are fixedly connected between the first limiting fixing cylinders 233 and the second limiting fixing cylinders 234, thereby stabilizing the orientation and improving accuracy during rotation.

[0049] like Figure 7 As shown, the top end of the tightening rotating column 25 is slidably mounted on the inner wall of the adjusting round tooth 29, and the adjusting round tooth 29 is concentric with the tightening rotating column 25.

[0050] Specifically, when the adjusting round tooth 29, the first limiting ring 28, and the tightening rotating column 25 are kept concentric, the fourth threaded rod 27 and the third threaded rod 24 can slide smoothly when rotating, thereby maintaining stable operation and improving the accuracy of workpiece processing.

[0051] like Figure 7 As shown, the side wall of the fifth threaded rod 239 is fixedly installed with a second connecting tooth 2392, and the outer wall of the third threaded rod 24 is fixedly installed with a plurality of first connecting teeth 2391, and the outer walls of the second connecting teeth 2392 and the first connecting teeth 2391 mesh with each other.

[0052] Specifically, when rotating the third threaded rod 24 drives the tightening rotating column 25 to tighten or loosen the screw, the outer wall of the third threaded rod 24 is fixedly equipped with the first connecting tooth 2391, and the side wall of the fifth threaded rod 239 is fixedly equipped with the second connecting tooth 2392. When tightening or loosening, the first air nozzle 2381 and the second air nozzle 2382 blow out gas to blow the inner wall of the clamping plate placement groove 153, while the second air nozzle 2382 blows the inner wall of the top of the clamping body 1, blowing out the debris generated after the workpiece is processed from the inner wall of the clamping plate placement groove 153, improving the cleanliness of the inner wall of the clamping plate placement groove 153, and making the clamping plate 15 slide more smoothly.

[0053] like Figure 1-4 As shown, the third threaded rod 24 and the fourth threaded rod 27, which are rolled together on the inner walls of the plurality of square boxes 23, extend out and are fixedly connected.

[0054] Specifically, multiple square boxes 23 are in parallel positions, and the fourth threaded rod 27 and the third threaded rod 24 inside the square boxes 23 are also in the same position. The fourth threaded rods 27 inside the multiple square boxes 23 are connected together, and the multiple third threaded rods 24 inside the square boxes 23 are connected together. After the nut rotating head 26 moves to the appropriate position, rotating the third threaded rod 24 and the fourth threaded rod 27 can engage the tightened nut 152 with the nut rotating head 26, thereby driving the clamping plate 15 to clamp the workpiece.

[0055] Working principle: Multiple workpieces are placed on the upper end of the clamping groove 16. After being placed in the appropriate position, the two second threaded rods 21 are rotated, which drive the third threaded rod 24 to move downward. The bottom end of the third threaded rod 24 is fixedly installed with multiple square boxes 23, which in turn drive the tightening rotating column 25, which is rolled inside the square box 23, to move downward. This causes the nut rotating head 26 at the bottom end of the tightening rotating column 25 to abut against the tightening nut 152. If the spring at the top of the tightening rotating column 25 is not compressed, the third threaded rod 24 can be slightly rotated, causing the tightening rotating column 25 to rotate slightly. When the nut rotating head 26 at the bottom end of the tightening rotating column 25 rotates to the position where it meshes with the tightening nut 152, the tightening rotating column 25 is then engaged by the second spring 29. 3. Under the action of the second limiting ring 292, the workpiece pops out. After that, the tightening rotating column 25 does not pop out, so the nut rotating head 26 and the tightening nut 152 are properly engaged. At this time, the third threaded rod 24 is rotated, and the third threaded rod 24 engages with the turbine rotating tooth 251. The turbine rotating tooth 251 drives the tightening rotating column 25 to rotate, thereby driving the tightening nut 152 at the bottom of the tightening rotating column 25 to rotate. The rotation of the tightening nut 152 drives the clamping plate 15 to move, clamping the placed workpiece, and then processing it. After processing is completed, continue to rotate the third threaded rod 24 to move the clamping plate 15 until the workpiece can be moved. The outer walls of the fifth threaded rod 239 and the third threaded rod 24 are provided with the first connecting tooth 2391 and the second connecting tooth 2392. When the third threaded rod 239... When rod 24 rotates, it drives the fifth threaded rod 239 to rotate. The fifth threaded rod 239 drives the sliding ring 237 on the outer wall to move. The first air nozzle 2381 at the lower end of the sliding ring 237 blows the clamping plate placement groove 153, while the second air nozzle 2382 blows the inside of the tightening nut 152, brushing away the residue after workpiece processing. This keeps the tightening nut 152 and the inside of the clamping plate placement groove 153 clean, improving the accuracy of workpiece processing. After blowing, the clamping plate 15 is reset. Then, the first threaded rod 13 is rotated, driving the cleaning plate 14 to move along the inner wall of the clamping groove 16, cleaning the inner wall of the clamping groove 16 and the side wall of the clamping plate 15, thus completing the workpiece processing and cleaning. After processing, the fixture is cleaned. This invention uses the third threaded rod 231 to drive multiple tightening rotating columns 25 to move synchronously, simultaneously locking the tightening rotating columns 25 in the position of the tightening nut 152 for screw tightening. During use, this prevents the screw from hitting an unclamped workpiece, improving workpiece processing accuracy. The first limiting ring 28 of the tightening device 2 and the tightening rotating columns 25 enhance the engagement between the tightening rotating columns 25 and the tightening nut 152. This allows the nut rotating head 26 to engage with the tightening nut 152 regardless of its position, facilitating rotation of the tightening nut 152. This controls the clamping force of the clamping plate 15 on the workpiece, allowing the number of rotations of the nut rotating head 26 to adjust the clamping force.By blowing air through the first air nozzle 2381 and the second air nozzle 2382 onto the tightening nut 152 and the clamping telescopic rod 151, machining residues on their surfaces are cleaned, thus extending their service life.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC tooling fixture, comprising a clamping body (1), characterized in that: The clamping body (1) has a clamping groove (16) inside for placing the workpiece. The clamp (1) has several clamping plate placement slots (153) inside; A clamping plate (15) is slidably installed inside the clamping plate placement slot (153), and the clamping plate (15) is used to clamp the workpiece; The top of the clamp (1) is rotatably connected to a plurality of tightening nuts (152), which, after being rotated, respectively press and fix each clamping plate (15); A tightening device (2) is slidably installed at the top of the clamp (1); Several tightening rotating columns (25) are rotatably mounted on the tightening device (2); The bottom end of the tightening rotating column (25) is slidably mounted with a nut rotating head (26). The bottom end of the tightening device (2) is rotatably mounted with a third threaded rod (24), and the third threaded rod (24) rotates to drive multiple tightening rotating columns (25) to rotate. The outer wall of the second threaded rod (21) is threaded with a lifting plate; The tightening device (2) includes two second threaded rods (21) that are rolled to the top of the clamp (1). Three sliding rods (22) are slidably installed inside the lifting plate. The bottom end of the sliding rod (22) is fixedly installed at the top of the clamp (1). Multiple square boxes (23) are fixedly installed at the bottom end of the lifting plate. Turbine rotating teeth (251) are fixedly installed on the outer wall of the tightening rotating column (25). A third threaded rod (24) is rolled to the inner wall of the square box (23). The outer wall of the third threaded rod (24) is threaded to the turbine rotating teeth (251). A fixing plate (253) is fixedly installed at the top of the tightening rotating column (25), a first spring (252) is fixedly installed at the top of the fixing plate (253), a fixing rotating strip (254) is fixedly installed on the outer wall of the top of the tightening rotating column (25), a first limiting ring (28) is slidably installed on the outer wall of the top of the tightening rotating column (25), and the first spring (252) is located between the first limiting ring (28) and the fixing plate (253); A square protrusion (291) is fixedly installed on the outer wall of the first limiting ring (28), and an adjusting round tooth (29) is slidably installed on the outer wall of the square protrusion (291). A fourth threaded rod (27) is rolled on the inner wall of the square box (23). A second limiting ring (292) is fixedly installed on the top of the first limiting ring (28), and a second spring (293) is fixedly installed on the top of the second limiting ring (292). A sliding groove (294) is fixedly installed on the inner wall of the adjusting round tooth (29). The fourth threaded rod (27) drives the adjusting round tooth (29) engaged on the outer wall to rotate. The square box (23) has two fixed protrusions (238) fixedly installed on its side wall. The fixed protrusions (238) are internally connected to a fifth threaded rod (239). The outer wall of the fifth threaded rod (239) is threadedly connected to a sliding ring (237). The bottom end of the sliding ring (237) is fixedly installed with a first air nozzle (2381). The bottom end of the square box (23) is fixedly installed with a second air nozzle (2382).

2. The CNC tooling fixture according to claim 1, characterized in that: A threaded retaining ring (12) is fixedly installed on the side wall of the clamp (1). A first threaded rod (13) is rolled inside the threaded retaining ring (12). A cleaning plate moving ring (141) is threadedly connected to the outer wall of the first threaded rod (13). A cleaning plate (14) is fixedly installed on the side wall of the cleaning plate moving ring (141). The cleaning plate (14) slides on the inner wall of the clamping groove (16).

3. A CNC tooling fixture according to claim 1, characterized in that: A sealing ring (235) is fixedly installed at the top of the inner wall of the square box (23), and a fourth limiting ring (232) is fixedly installed at the bottom of the sealing ring (235). A second limiting cylinder (234) is fixedly installed on the outer wall of the fourth limiting ring (232), and the end of the second limiting cylinder (234) is fixedly installed on the inner wall of the square box (23). A third limiting ring (231) is fixedly installed on the outer wall of the first limiting ring (28), and two first limiting cylinders (233) are fixedly installed on the outer wall of the third limiting ring (231). The end of the first limiting cylinder (233) is fixedly installed on the inner wall of the square box (23).

4. A CNC tooling fixture according to claim 3, characterized in that: The side wall of the fifth threaded rod (239) is fixedly equipped with a second connecting tooth (2392), and the outer wall of the third threaded rod (24) is fixedly equipped with a plurality of first connecting teeth (2391). The second connecting tooth (2392) meshes with the outer wall of the first connecting tooth (2391).

5. A CNC tooling fixture according to claim 4, characterized in that: A third threaded rod (24) that is rolled on the inner wall of the multiple square boxes (23) extends out and is fixedly connected; a fourth threaded rod (27) that is rolled on the inner wall of the multiple square boxes (23) extends out and is fixedly connected.

Images