Adjustable cnc clamp

Abstract

The invention relates to the field of bending machine clamps, in particular to an adjustable cnc clamp which comprises a clamp top mounting mechanism, a clamp hydraulic clamping mechanism is connected to the middle of the clamp top mounting mechanism in a penetrating mode, and quick-release movable clamp mechanisms are movably connected to the interiors of the two sides of the clamp top mounting mechanism. An adjustable fixing clamp mechanism is connected to the rear end of the clamp top mounting mechanism through a bolt, and when a cutter is clamped, a certain moving area can be provided for the cutter through the elasticity of a reset spring on the top of a hydraulic cylinder, so that bottom mounting of the cutter is completed; after installation, a hydraulic rod can replace a spring for supporting to complete clamping work of a tool, the tool replacement efficiency and the clamping stability are improved, precision adjustment of the bottom of the clamp can be completed through a screw rod, and finally the abraded bottom of the clamp can be independently replaced after long-time use, so that the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of bending machine jigs, and specifically to an adjustable CNC jig. Background Art

[0002] A bending machine CNC jig refers to a jig used to fix and support a workpiece during CNC (Computer Numerical Control) machining to ensure its stability and accuracy during the bending operation. By fixing, supporting, and stabilizing the workpiece, the CNC jig provides strong guarantee for the smooth machining of the tool. During the bending operation, the jig ensures the stability and accuracy of the workpiece during the machining process.

[0003] Although the existing bending machine CNC jig can complete the clamping and fixing work of the tool during use, it needs to be manually released, which has certain operation risks and low use efficiency. In addition, after long-term use, the bottom of the existing jig is prone to wear, which affects the machining accuracy and requires overall replacement, resulting in high use costs. At the same time, when adjusting the accuracy of the existing jig, it is necessary to strike the wedge-shaped adjustment block, which cannot perform fine operations and affects the adjustment accuracy.

[0004] Therefore, the present invention provides an adjustable CNC jig to solve the above problems. Summary of the Invention

[0005] When clamping the tool, the present invention can provide a certain activity area for the tool through the elasticity at the top of the hydraulic cylinder to complete the bottom installation of the tool. After installation, the hydraulic rod can be used to replace the spring for support to complete the clamping work of the tool, improving the tool replacement efficiency and clamping stability. The accuracy of the bottom of the jig can be adjusted by a screw. Finally, after long-term use, the worn bottom of the jig can be replaced separately to reduce the maintenance cost.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable CNC clamp, comprising a clamp top mounting mechanism, a clamp hydraulic clamping mechanism is connected through the middle of the clamp top mounting mechanism, quick-release movable clamp mechanisms are movably connected inside the two sides of the clamp top mounting mechanism, an adjustable fixed clamp mechanism is bolted to the rear end of the clamp top mounting mechanism, the clamp top mounting mechanism comprises a hollow back plate, a slotted connecting plate, a rotating support base, a rotating connecting rod and a hydraulic mounting hole, and the clamp hydraulic clamping mechanism comprises a hydraulic control The quick-release movable clamp mechanism includes a top clamp, an arc-shaped support plate, a slotted rotating connection block, a convex connection plate, a transverse mounting bolt, a concave connection plate, a bottom limit clamp, a flexible pad, a transverse threaded hole and a vertical mounting bolt; the adjustable fixed clamp mechanism includes an internal drive fixed clamp, a clamp limit back plate, a screw driver, a threaded adjustment rod, a hexagonal series adjustment block, an internal threaded sliding block and a wedge-shaped adjustment block.

[0007] A slotted connecting plate is integrally formed at the upper end of the hollow back panel, a rotating support base is integrally formed at the front end of the hollow back panel, a rotating connecting rod is integrally formed in the middle of the rotating support base, and a hydraulic mounting hole is opened in the middle of the hollow back panel.

[0008] A power supply connection back plate is installed at the rear end of the hydraulic controller, and hydraulic cylinders are detachably connected to both sides of the hydraulic controller through lateral connecting plates. A hydraulic extension rod is movably connected to the inner wall of the hydraulic cylinder, and an internal buffer spring is welded inside one end of the hydraulic extension rod. The inner wall of the hydraulic extension rod is movably connected to a limited sliding connecting cylinder, and a flexible connecting plate is bonded to one end of the limited sliding connecting cylinder.

[0009] The upper end of the top clamp is integrally formed with an arc-shaped support plate, the middle part of the rear end of the top clamp is integrally formed with a slotted rotating connecting block, the lower part of the rear end of the top clamp is integrally formed with a convex connecting plate, the middle part of the convex connecting plate is threadedly connected with a transverse mounting bolt, the rear end of the convex connecting plate is detachably connected with a concave connecting plate, the lower end of the concave connecting plate is integrally formed with a bottom limiting clamp, the middle part of the rear end of the bottom limiting clamp is aligned with a flexible pad, the middle part of the bottom limiting clamp is threadedly connected with a vertical mounting bolt, and the middle part of the concave connecting plate is provided with a transverse threaded hole.

[0010] A fixture limit backplate is integrally formed at the lower end of the inner-driven fixed fixture. A screw driver is detachably connected to the middle of one side of the inner-driven fixed fixture. Thread adjusting rods are movably connected to the inner parts on both sides of the inner-driven fixed fixture. One end of each thread adjusting rod is welded with an inner hexagon series adjusting block. An internally threaded sliding block is movably connected to the outer wall of each thread adjusting rod. A wedge-shaped adjusting block is integrally formed at the upper end of the internally threaded sliding block.

[0011] The middle of the hollow backplate is in limit connection with the outer wall of the hydraulic cylinder through a hydraulic mounting hole. The middle of the rear end of the hollow backplate is detachably connected to the outer surfaces around the power supply connection backplate and the hydraulic extension rod.

[0012] The middle of the rotary support base is movably connected to the middle of the slotted rotary connection block through a rotary connecting rod. One end of the limit sliding connection cylinder is detachably connected to the rear end of the arc-shaped support plate through a flexible connecting plate.

[0013] Both ends of the concave connecting plate are detachably connected to both ends of the transverse mounting bolt through transverse and vertical mounting bolts. The upper end of the concave connecting plate is detachably connected to the lower end of the top fixture.

[0014] The lower end of the fixture top mounting mechanism is detachably connected to the inner part of the lower end of the fixture hydraulic clamping mechanism and the quick-release movable fixture mechanism.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, a hydraulic spring push rod is used to replace a manual rotating rod to complete the rapid clamping work of the tool. By pulling the bottom limit fixture at the bottom of the top fixture, the top fixture and the bottom limit fixture move under the action of the slotted rotary connection block in the middle of the top fixture. After the movement, the buffer spring inside the hydraulic extension rod is squeezed by the arc-shaped support plate, and the limit sliding connection cylinder is pushed back into the hydraulic extension rod to complete the unfolding work of the bottom limit fixture and the fixture limit backplate. After unfolding, the tool to be clamped is installed in the middle of the bottom limit fixture and the fixture limit backplate. After installation, the bottom limit fixture is loosened, and the tool is pre-fixed under the action of the buffer spring on one side of the bottom limit fixture and the arc-shaped support plate to prevent the tool from falling. After pre-fixing, the power supply connection backplate is powered and controlled by a hydraulic controller. The power supply connection backplate controls the hydraulic cylinder through the side connection plate. The pressure inside the hydraulic cylinder increases to push the hydraulic extension rod out. The hydraulic extension rod pushes the limit sliding connection cylinder to push the arc-shaped support plate through the flexible connecting plate. The arc-shaped support plate, under the action of the rotary support base and the slotted rotary connection block, pushes the bottom limit fixture to complete the clamping work of the tool.

[0016] 2. After the tool shows machining deviation, the present invention controls the micro motor inside the inner drive type fixture through the controller to drive the threaded adjustment rod inside the inner drive type fixture through the screw drive. The threaded adjustment rod is in threaded engagement with the internal threaded slider at the bottom of the wedge adjustment block, completing the adjustment of the use position of the wedge adjustment block, which can quickly complete the adjustment work of the use position of the wedge adjustment block and improve the moving accuracy of the wedge adjustment block.

[0017] 3. After the fixture is worn out after long-term use, the convex connecting plate and the concave connecting plate can be separated by removing the horizontal mounting bolts and the vertical mounting bolts. Align the new bottom limit fixture with the concave connecting plate of the top fixture through the convex connecting plate, and then install the convex connecting plate and the concave connecting plate from the top and side through the horizontal mounting bolts and the vertical mounting bolts, which can reduce the equipment maintenance cost. Brief Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the split structural schematic diagram of the present invention; Figure 3 is the structural diagram of the fixture installation mechanism of the present invention; Figure 4 is the structural diagram of the fixture hydraulic drive mechanism of the present invention; Figure 5 is the structural diagram of the quick-release fixture of the present invention; Figure 6 is the split structural diagram of the quick-release fixture of the present invention; Figure 7 is the structural diagram of the fixture adjustment mechanism of the present invention.

[0019] In the figure: 1. Fixture top mounting mechanism; 2. Fixture hydraulic clamping mechanism; 3. Quick-release movable fixture mechanism; 4. Adjustable fixed fixture mechanism; 101. Hollow backplane; 102. Slotted connecting plate; 103. Rotating support base; 104. Rotating connecting rod; 105. Hydraulic mounting hole; 201. Hydraulic controller; 202. Power supply connection backplane; 203. Lateral connecting plate; 204. Hydraulic cylinder; 205. Hydraulic extension rod; 206. Internal buffer spring; 207. Limit sliding connecting cylinder; 208. Flexible connecting plate; 301. Top fixture; 302. Arc-shaped support plate; 303. Slotted rotating connecting block; 304. Convex connecting plate; 305. Horizontal mounting bolt; 306. Concave connecting plate; 307. Bottom limit fixture; 308. Flexible backing plate; 309. Horizontal threaded hole; 310. Vertical mounting bolt; 401. Inner-driven fixed fixture; 402. Fixture limit backplane; 403. Screw driver; 404. Thread adjusting rod; 405. Hexagon socket series adjusting block; 406. Internal thread sliding block; 407. Wedge adjusting block. Detailed implementation mode

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0021] The present invention provides an adjustable CNC fixture, including a fixture top mounting mechanism 1. A fixture hydraulic clamping mechanism 2 is connected through the middle of the fixture top mounting mechanism 1. Quick-release movable fixture mechanisms 3 are movably connected inside both sides of the fixture top mounting mechanism 1. An adjustable fixed fixture mechanism 4 is bolted to the rear end of the fixture top mounting mechanism 1. The fixture top mounting mechanism 1 includes a hollow backplane 101, a slotted connecting plate 102, a rotary support base 103, a rotary connecting rod 104, and a hydraulic mounting hole 105. The fixture hydraulic clamping mechanism 2 includes a hydraulic controller 201, a power supply connection backplane 202, a lateral connecting plate 203, a hydraulic cylinder 204, a hydraulic extension rod 205, an internal buffer spring 206, a limit sliding connecting cylinder 207, and a flexible connecting plate 208. The quick-release movable fixture mechanisms 3 include a top fixture 301, an arc-shaped support plate 302, a slotted rotary connection block 303, a convex connecting plate 304, a transverse mounting bolt 305, a concave connecting plate 306, a bottom limit fixture 307, a flexible backing plate 308, a transverse threaded hole 309, and a vertical mounting bolt 310. The adjustable fixed fixture mechanism 4 includes an internally driven fixed fixture 401, a fixture limit backplane 402, a screw drive 403, a threaded adjustment rod 404, an internal hexagonal series adjustment block 405, an internally threaded sliding block 406, and a wedge adjustment block 407.

[0022] In an alternative embodiment, a slotted connecting plate 102 is integrally formed at the upper end of the hollow backplane 101. A rotary support base 103 is integrally formed at the front end of the hollow backplane 101. A rotary connecting rod 104 is integrally formed in the middle of the rotary support base 103. A hydraulic mounting hole 105 is formed in the middle of the hollow backplane 101. The installation and fixation of the hollow backplane 101 are completed by the slotted connecting plate 102, and the use angle of the quick-release movable fixture mechanism 3 is adjusted through the rotary connecting rod 104 in the middle of the rotary support base 103.

[0023] In an alternative embodiment, a power supply connection backplane 202 is mounted in alignment with the rear end of the hydraulic controller 201. The two sides of the hydraulic controller 201 are detachably connected to hydraulic cylinders 204 through lateral connection plates 203. A hydraulic extension rod 205 is movably connected to the inner wall of the hydraulic cylinder 204. An internal buffer spring 206 is welded and connected inside one end of the hydraulic extension rod 205. A limiting sliding connection cylinder 207 is movably connected to the inner wall of the hydraulic extension rod 205. A flexible connection plate 208 is adhesively connected to one end of the limiting sliding connection cylinder 207. The power supply connection backplane 202 is powered and controlled by the hydraulic controller 201. The hydraulic cylinder 204 is controlled by the power supply connection backplane 202 through the lateral connection plate 203. When the internal pressure of the hydraulic cylinder 204 increases, it pushes the hydraulic extension rod 205 to eject. The hydraulic extension rod 205 pushes the limiting sliding connection cylinder 207 to push the quick-release movable fixture mechanism 3 through the flexible connection plate 208, completing the tool clamping work.

[0024] In an alternative embodiment, an arc-shaped support plate 302 is integrally formed at the upper end of the top fixture 301. A slotted rotary connection block 303 is integrally formed in the middle of the rear end of the top fixture 301. A convex connection plate 304 is integrally formed below the rear end of the top fixture 301. A transverse mounting bolt 305 is threadedly connected to the middle of the convex connection plate 304. A concave connection plate 306 is detachably connected to the rear end of the convex connection plate 304. A bottom limiting fixture 307 is integrally formed at the lower end of the concave connection plate 306. A flexible cushion plate 308 is connected in alignment with the middle of the rear end of the bottom limiting fixture 307. A vertical mounting bolt 310 is threadedly connected to the middle of the bottom limiting fixture 307. A transverse threaded hole 309 is formed in the middle of the concave connection plate 306. After the fixture is worn out after long-term use, the convex connection plate 304 and the concave connection plate 306 can be separated by removing the transverse mounting bolt 305 and the vertical mounting bolt 310. The new bottom limiting fixture 307 is aligned with the concave connection plate 306 of the top fixture 301 through the convex connection plate 304. After alignment, the convex connection plate 304 and the concave connection plate 306 are installed from the top and laterally through the transverse mounting bolt 305 and the vertical mounting bolt 310, which can reduce the equipment maintenance cost.

[0025] In an alternative embodiment, a fixture limit backplate 402 is integrally formed at the lower end of the inner-driven fixed fixture 401. A screw driver 403 is detachably connected to the middle of one side of the inner-driven fixed fixture 401. Thread-adjusting rods 404 are movably connected inside both sides of the inner-driven fixed fixture 401. One end of each thread-adjusting rod 404 is welded to an inner hexagon series adjusting block 405. An internally threaded sliding block 406 is movably connected to the outer wall of each thread-adjusting rod 404. A wedge-shaped adjusting block 407 is integrally formed at the upper end of the internally threaded sliding block 406. After a machining deviation occurs in the tool, the controller controls a micro motor inside the inner-driven fixed fixture 401 to drive the thread-adjusting rods 404 inside the inner-driven fixed fixture 401 through the screw driver 403. The thread-adjusting rods 404 are in thread engagement with the internally threaded sliding blocks 406 at the bottom of the wedge-shaped adjusting blocks 407, completing the adjustment of the use positions of the wedge-shaped adjusting blocks 407, and can quickly complete the adjustment work of the use positions of the wedge-shaped adjusting blocks 407, improving the moving precision of the wedge-shaped adjusting blocks 407.

[0026] In an alternative embodiment, the middle of the hollow backplate 101 is in limit connection with the outer wall of the hydraulic cylinder 204 through a hydraulic mounting hole 105. The middle of the rear end of the hollow backplate 101 is detachably connected to the outer surfaces around the power supply connection backplate 202 and the hydraulic extension rod 205. The hollow backplate 101 completes the work of restricting the installation positions of the hydraulic cylinder 204, the power supply connection backplate 202, and the hydraulic extension rod 205.

[0027] In an alternative embodiment, the middle of the rotary support base 103 is movably connected to the middle of the slotted rotary connection block 303 through a rotary connecting rod 104. One end of the limit sliding connection cylinder 207 is detachably connected to the rear end of the arc-shaped support plate 302 through a flexible connecting plate 208. The rotary support base 103 completes the rotation of the slotted rotary connection block 303 through the rotary connecting rod 104, completing the opening and closing work of the fixture. When the fixture is opened and closed, the limit sliding connection cylinder 207 completes the support work of the arc-shaped support plate 302 through the flexible connecting plate 208.

[0028] In an alternative embodiment, both ends inside the concave connecting plate 306 are detachably connected to both ends of the transverse mounting bolt 305 through a transverse mounting bolt 305 and a vertical mounting bolt 310. The upper end of the concave connecting plate 306 is detachably connected to the lower end of the top fixture 301. Tightening work is carried out through a bidirectional bolt, which can ensure the stability of the detachable fixture during use.

[0029] In an alternative embodiment, the lower end of the fixture top mounting mechanism 1 is detachably connected to the inside of the lower end of the quick-release movable fixture mechanism 3 through the fixture hydraulic clamping mechanism 2. The fixture top mounting mechanism 1 drives the quick-release movable fixture mechanism 3 through the fixture hydraulic clamping mechanism 2 to complete the closing and opening work of the fixture.

[0030] Working principle: When in use, first pull the bottom limit fixture 307 at the bottom of the top fixture 301, so that the top fixture 301 and the bottom limit fixture 307 move under the action of the grooved rotary connection block 303 in the middle of the top fixture 301. After the movement, through the extrusion of the buffer spring 206 inside the hydraulic extension rod 205 by the arc-shaped support plate 302, the limit sliding connection cylinder 207 is pushed back into the hydraulic extension rod 205 to complete the unfolding work of the bottom limit fixture 307 and the fixture limit back plate 402. After unfolding, install the tool to be clamped in the middle of the bottom limit fixture 307 and the fixture limit back plate 402. After installation, loosen the bottom limit fixture 307, so that the bottom limit fixture 307 and the buffer spring 206 on one side of the arc-shaped support plate 302 pre-fix the tool to prevent the tool from falling. After pre-fixing, the hydraulic controller 201 conducts power supply control work on the power supply connection back plate 202. The power supply connection back plate 202 controls the hydraulic cylinder 204 through the lateral connection plate 203. The pressure inside the hydraulic cylinder 204 increases to push the hydraulic extension rod 205 to eject. The hydraulic extension rod 205 pushes the limit sliding connection cylinder 207 to push the arc-shaped support plate 302 through the flexible connection plate 208. The arc-shaped support plate 302, under the action of the rotary support base 103 and the grooved rotary connection block 303, pushes the bottom limit fixture 307 to complete the clamping work of the tool. After the tool has machining deviation, the controller controls the micro motor inside the inner drive fixed fixture 401 to drive the threaded adjusting rod 404 inside the inner drive fixed fixture 401 through the screw drive 403. The threaded adjusting rod 404 engages with the internal threaded sliding block 406 at the bottom of the wedge-shaped adjusting block 407 to complete the adjustment of the use position of the wedge-shaped adjusting block 407. The adjustment work of the use position of the wedge-shaped adjusting block 407 can be quickly completed, improving the moving accuracy of the wedge-shaped adjusting block 407. After the fixture is worn after long-term use, the convex connection plate 304 and the concave connection plate 306 can be separated by disassembling the horizontal mounting bolts 305 and the vertical mounting bolts 310. Align the new bottom limit fixture 307 with the concave connection plate 306 of the top fixture 301 through the convex connection plate 304. After alignment, install the convex connection plate 304 and the concave connection plate 306 from the top and laterally through the horizontal mounting bolts 305 and the vertical mounting bolts 310, which can reduce the equipment maintenance cost.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable CNC fixture, comprising a fixture top mounting mechanism (1), characterized in that, The middle of the clamp top mounting mechanism (1) is connected with a clamp hydraulic clamping mechanism (2), the two sides of the clamp top mounting mechanism (1) are internally movably connected with quick-release movable clamp mechanisms (3), the rear end of the clamp top mounting mechanism (1) is bolted with an adjustable fixed clamp mechanism (4), the clamp top mounting mechanism (1) comprises a hollow back plate (101), a slotted connecting plate (102), a rotating support base (103), a rotating connecting rod (104) and a hydraulic mounting hole (105), and the clamp hydraulic clamping mechanism (2) comprises a hydraulic controller (201), a power supply connecting back plate (202), a lateral connecting plate (203), a hydraulic cylinder (204), a hydraulic extension rod (205), and an internal buffer spring (206). , a limited sliding connection cylinder (207) and a flexible connection plate (208), the quick-release movable clamp mechanism (3) comprises a top clamp (301), an arc-shaped support plate (302), a slotted rotating connection block (303), a convex connection plate (304), a transverse mounting bolt (305), a concave connection plate (306), a bottom limited clamp (307), a flexible pad (308), a transverse threaded hole (309) and a vertical mounting bolt (310), and the adjustable fixed clamp mechanism (4) comprises an internal drive fixed clamp (401), a clamp limited backing plate (402), a screw driver (403), a threaded adjustment rod (404), an inner hexagonal series adjustment block (405), an inner threaded sliding block (406) and a wedge-shaped adjustment block (407).

2. The adjustable CNC fixture according to claim 1, wherein, A slotted connecting plate (102) is integrally formed at the upper end of the hollow back plate (101), a rotating support base (103) is integrally formed at the front end of the hollow back plate (101), a rotating connecting rod (104) is integrally formed at the middle of the rotating support base (103), and a hydraulic mounting hole (105) is provided at the middle of the hollow back plate (101).

3. An adjustable CNC fixture according to claim 1, characterized in that, A power supply connection back plate (202) is installed in a counterpositioned manner at the rear end of the hydraulic controller (201); hydraulic cylinders (204) are detachably connected to the two sides of the hydraulic controller (201) via lateral connection plates (203); a hydraulic extension rod (205) is movably connected to the inner wall of the hydraulic cylinder (204); an internal buffer spring (206) is welded to the inside of one end of the hydraulic extension rod (205); a limited sliding connection cylinder (207) is movably connected to the inner wall of the hydraulic extension rod (205); and a flexible connection plate (208) is bonded to one end of the limited sliding connection cylinder (207).

4. An adjustable CNC fixture according to claim 1, wherein, An arc-shaped support plate (302) is integrally formed at the upper end of the top fixture (301). A slotted rotary connection block (303) is integrally formed in the middle of the rear end of the top fixture (301). A convex connecting plate (304) is integrally formed below the rear end of the top fixture (301). A transverse mounting bolt (305) is threadedly connected to the middle of the convex connecting plate (304). A concave connecting plate (306) is detachably connected to the rear end of the convex connecting plate (304). A bottom limiting fixture (307) is integrally formed at the lower end of the concave connecting plate (306). A flexible backing plate (308) is connected in alignment with the middle of the rear end of the bottom limiting fixture (307). A vertical mounting bolt (310) is threadedly connected to the middle of the bottom limiting fixture (307). A transverse threaded hole (309) is formed in the middle of the concave connecting plate (306).

5. An adjustable CNC fixture according to claim 1, characterized in that, A fixture limiting back plate (402) is integrally formed at the lower end of the inner-driven fixed fixture (401). A screw actuator (403) is detachably connected to the middle of one side of the inner-driven fixed fixture (401). Thread-adjusting rods (404) are movably connected inside both sides of the inner-driven fixed fixture (401). An inner hexagonal series adjusting block (405) is welded to one end of each thread-adjusting rod (404). An internally threaded sliding block (406) is movably connected to the outer wall of each thread-adjusting rod (404). A wedge-shaped adjusting block (407) is integrally formed at the upper end of each internally threaded sliding block (406).

6. An adjustable CNC fixture according to claim 1, characterized in that, The middle of the hollow back plate (101) is limit-connected to the outer wall of the hydraulic cylinder (204) through the hydraulic mounting holes (105). The middle of the rear end of the hollow back plate (101) is detachably connected to the outer surfaces around the power supply connection back plate (202) and the hydraulic extension rod (205).

7. An adjustable CNC fixture according to claim 1, wherein, The middle of the rotary support base (103) is movably connected to the middle of the slotted rotary connection block (303) through the rotary connecting rod (104). One end of the limit sliding connection cylinder (207) is detachably connected to the rear end of the arc-shaped support plate (302) through the flexible connecting plate (208).

8. An adjustable CNC fixture according to claim 1, characterized in that, Both ends inside the concave connecting plate (306) are detachably connected to both ends of the transverse mounting bolt (305) through the transverse mounting bolt (305) and the vertical mounting bolt (310). The upper end of the concave connecting plate (306) is detachably connected to the lower end of the top fixture (301).

9. An adjustable CNC fixture according to claim 1, characterized in that The lower end of the fixture top mounting mechanism (1) is detachably connected to the inside of the lower end of the quick-release movable fixture mechanism (3) through the fixture hydraulic clamping mechanism (2).

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