Turning tool of numerical control lathe

By designing a CNC lathe turning fixture with drive and collection components, the problems of unstable workpiece fixation and waste chip handling were solved, achieving high-precision machining and safe waste chip collection.

CN223603588UActive Publication Date: 2025-11-28YIBIN MEIYANG MACHINERY CO LTD
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Patent Information

Application Number
CN202423286733.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-28
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The existing CNC lathe tooling is not securely fixed, which leads to cutting deviation and lacks waste chip recovery function, posing a safety hazard.

Method used

A CNC lathe turning fixture including a drive component, an auxiliary fixing component, and a collection component was designed. The workpiece is stably clamped by the cooperation of the clamping block and the support base, and the machining waste is collected by the collection groove and the collection component.

Benefits of technology

It improves the stability and accuracy of the workpiece during processing, avoids cutting deviation, effectively collects and processes metal scrap, and enhances safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223603588U_ABST
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Abstract

The utility model relates to the technical field of machining. The numerical control lathe turning tool comprises a base, a connecting disc is rotationally arranged on the base, a mounting seat is coaxially arranged on the connecting disc, a supporting plate is arranged on the mounting seat, a supporting seat used for placing a workpiece is arranged on the supporting plate, a supporting rod is arranged on the mounting seat, and the supporting rod is connected with the connecting disc. A supporting rod is arranged on the base, a clamping block is rotationally arranged on the supporting rod, a driving assembly is arranged in the supporting seat, an auxiliary fixing assembly is arranged on the supporting seat, a V-shaped collecting groove is formed in the base, and a collecting assembly used for collecting workpiece machining waste is arranged at the position, located at the bottom of the collecting groove, of the base. The clamping device has the advantages that the driving assembly can drive the clamping block to clamp and fix the part to be machined, and the auxiliary fixing assembly can press and fix the workpiece on the supporting seat, so that the stability of the workpiece to be machined is improved, and the cutting precision is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machining, especially a numerical control lathe turning frock. BACKGROUND

[0002] The numerical control lathe is one of numerical control machine tools which are widely used at present. It is mainly used for cutting machining of inner and outer cylindrical surface of shaft parts or disc parts, inner and outer conical surface of arbitrary taper angle, complex rotary inner and outer curved surface and cylindrical and conical thread, and can also be used for cutting, drilling, reaming, reaming and boring.

[0003] When cutting machining of the parts is carried out, the parts need to be fixed, and the existing frock fixing is often not stable enough, so that loosening occurs during cutting, which leads to deviation of cutting and greatly reduces the accuracy of the parts, and even the parts cannot be used. Meanwhile, the existing device does not have a waste chip recycling function, so that the waste chips generated during cutting are scattered in the air. Since the waste chips are metal, once they are absorbed by the human body, they will cause great harm, and in severe cases, they will cause life-threatening to the human body, so the safety is low. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the shortcomings of the prior art, the application provides a numerical control lathe turning frock.

[0005] The numerical control lathe turning frock provided by the application adopts the following technical scheme:

[0006] A numerical control lathe turning frock, comprising a base, a connecting disc rotatably arranged on the base, an installation seat coaxially arranged on the connecting disc, a support plate arranged on the installation seat, a support seat for placing a workpiece arranged on the support plate, a support rod arranged on the installation seat and located on both sides of the support seat, a clamping block rotatably arranged on the support rod, a driving assembly arranged in the support seat for driving the two clamping blocks to clamp and fix the workpiece, an auxiliary fixing assembly arranged on the support seat, a V-shaped collecting groove formed in the base, and a collecting assembly arranged on the base and located at the bottom of the collecting groove for collecting workpiece machining waste.

[0007] By adopting the above technical scheme, when in use, the workpiece is placed on the support seat, and then the two clamping blocks are driven by the driving assembly to rotate towards each other, so as to conveniently clamp and fix the workpiece. The auxiliary fixing assembly can improve the fixing effect of the parts, so that the parts are more stable during machining, thereby improving the machining precision. The chips generated during machining of the parts will fall into the collecting groove, and then the chips will be collected by the collecting assembly.

[0008] Optionally, the driving assembly comprises a driving block and a lead screw, the support seat is internally hollow, the driving block is slidingly arranged on the support seat, two driven sliding blocks are slidingly arranged on the support seat and located on both sides of the driving block, the driving block is trapezoidal, the end of the driven sliding block close to the driving block is arranged in a slope, the driving block is slidingly connected with the driven sliding block, the end of the driven sliding block away from the driving block is in abutment with the bottom of the clamping block, the lead screw is rotationally arranged on the support seat, the driving block is threadedly connected with the lead screw, and the end of the lead screw away from the support seat is coaxially provided with a rotating nut.

[0009] By adopting the above technical scheme, the driving assembly drives the two clamping blocks to move in the direction of approaching each other away from the end of the driven sliding block, thereby facilitating clamping and fixing of the workpiece.

[0010] Optionally, the end of the clamping block away from the driven sliding block is provided with a mounting hole, a sliding rod is slidingly arranged in the mounting hole, an abutment block is arranged at the end of the sliding rod away from the clamping block, a spring is sleeved on the sliding rod, one end of the spring is connected with the abutment block, and the other end of the spring is connected with the clamping block.

[0011] By adopting the above technical scheme, the spring can alleviate the vibration generated in the numerical control turning process to some extent, so that the clamping and fixing effect of the clamping block on the workpiece is more stable, thereby avoiding affecting the cutting precision to some extent.

[0012] Optionally, the support seat is slidingly arranged along the length direction of the support plate, a plurality of positioning holes are uniformly arranged on the support plate along the length direction of the support plate, a plurality of fixing bolts are uniformly arranged on the support seat, the bottom of the fixing bolt is threadedly connected with the positioning hole, the clamping block is slidingly arranged on the support rod, the support rod is a threaded rod, and a positioning nut is arranged on the support rod and located on both sides of the clamping block.

[0013] By adopting the above technical scheme, the clamping and fixing of parts of different sizes can be adapted, and the practicality of use is greatly increased.

[0014] Optionally, the auxiliary fixing assembly comprises two mounting blocks, the two sides of the support seat are provided with moving grooves, the mounting blocks are slidingly arranged in the moving grooves, a connecting rod is rotationally arranged on the mounting block, a plurality of limiting holes are uniformly arranged on the side wall of the support seat along the length direction of the support seat, a limiting screw rod is arranged on the connecting rod, the bottom of the limiting screw rod is threadedly connected with the limiting hole, an installation rod is arranged on the connecting rod, an auxiliary fixing rod is threadedly and vertically arranged on the installation rod, the bottom of the auxiliary fixing rod is provided with an auxiliary fixing block, a limiting rod is slidingly arranged on the installation rod along the vertical direction, the bottom of the limiting rod is fixedly connected with the auxiliary fixing block, and an auxiliary nut is coaxially arranged on the top of the auxiliary fixing rod.

[0015] By adopting the technical scheme, the auxiliary fixing assembly can press and fix the workpiece on the support base, and the limiting rod can limit the moving direction of the auxiliary fixing block, so that the auxiliary fixing block can move along the vertical direction.

[0016] Optionally, the collecting assembly comprises a waste collecting box, a filter plate is arranged in the waste collecting box, an axial flow fan is arranged at the bottom of the waste collecting box, and a mounting groove is arranged on the base, and the waste collecting box is slidingly arranged in the mounting groove.

[0017] By adopting the technical scheme, the dust generated in the part machining process can be collected.

[0018] Optionally, a pull rod is arranged on the waste collecting box, a holding block is arranged at the end of the pull rod away from the waste collecting box, and a positioning groove for placing the holding block is arranged on the base.

[0019] By adopting the technical scheme, the worker can take out the waste collecting box filled with metal scraps from the base for cleaning, and then put the cleaned waste collecting box back to the specified position.

[0020] Optionally, anti-skid pads are arranged on the top of the support base and the clamping block, and a plurality of fixing grooves are uniformly arranged on the base.

[0021] By adopting the technical scheme, the anti-skid pads can improve the friction between the workpiece and the clamping block, thereby improving the stability of the workpiece in the machining process.

[0022] The utility model has the following advantages:

[0023] 1. By arranging the driving assembly and the auxiliary fixing assembly, the driving assembly can drive the clamping block to clamp and fix the workpiece, and the auxiliary fixing assembly can press and fix the workpiece on the support base, thereby improving the stability of the workpiece and the precision of the cutting.

[0024] 2. By arranging the mounting hole, the sliding rod and the spring, the vibration generated in the numerical control turning process can be relieved to some extent, the clamping and fixing effect of the clamping block on the workpiece is more stable, and the influence on the cutting precision is avoided to some extent.

[0025] 3. By arranging the collecting assembly, the scraps and dust generated in the workpiece cutting process can be collected. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure is a structural schematic diagram of the utility model as a whole.

[0027] Figure 2It is installation structure schematic view of the collecting assembly of the utility model;

[0028] Figure 3 It is installation structure schematic view of the auxiliary fixing assembly of the utility model;

[0029] Figure 4 It is sectional view of the support seat of the utility model;

[0030] Figure 5 It is installation structure schematic view of the driving block and the driven slider of the utility model;

[0031] In the figure: 1, base; 11, connecting disc; 12, mounting seat; 13, support plate; 14, support seat; 15, support rod; 16, clamping block; 161, mounting hole; 162, sliding rod; 163, abutting block; 164, spring; 17, collection groove; 18, non-slip pad; 19, fixed groove; 2, driving assembly; 21, driving block; 22, screw rod; 23, driven slider; 24, rotating nut; 3, auxiliary fixing assembly; 31, mounting block; 32, moving groove; 33, connecting rod; 34, limiting hole; 35, limiting screw rod; 36, mounting rod; 37, auxiliary fixing rod; 371, auxiliary fixing block; 372, auxiliary nut; 38, auxiliary nut; 39, limiting rod; 4, collecting assembly; 41, waste collecting box; 42, filter plate; 43, axial flow fan; 44, mounting groove; 45, pull rod; 46, gripping block; 47, positioning groove; 5, positioning hole; 51, fixing bolt; 52, positioning nut. DETAILED DESCRIPTION

[0032] The utility model will be further described below in combination with the drawings, but the protection scope of the utility model is not limited to the following.

[0033] As Figures 1 to 5As shown in the figure, a numerical control lathe turning tool includes a base 1, a connecting disc 11 is rotatably installed on the base 1, in use, the connecting disc 11 is connected with a transmission shaft of a numerical control machine tool, a mounting seat 12 is coaxially installed on the connecting disc 11, a supporting plate 13 is installed on the mounting seat 12, a supporting seat 14 for placing a workpiece is installed on the supporting plate 13, supporting rods 15 are installed on the mounting seat 12 and located on both sides of the supporting seat 14, clamping blocks 16 are rotatably installed on the supporting rods 15, a driving assembly 2 for driving the two clamping blocks 16 to clamp and fix the workpiece is installed in the supporting seat 14, an auxiliary fixing assembly 3 is installed on the supporting seat 14, a V-shaped collecting groove 17 is formed in the base 1, and a collecting assembly 4 for collecting workpiece machining waste is installed on the base 1 and located at the bottom of the collecting groove 17; in use, the workpiece is placed on the supporting seat 14, then the two clamping blocks 16 are driven to rotate towards each other by the driving assembly 2, so as to conveniently clamp and fix the workpiece, the auxiliary fixing assembly 3 can improve the fixing effect of the part, so that the part is more stable during machining, thereby improving the machining precision, and the debris generated during part machining falls into the collecting groove 17, and then the debris is collected by the collecting assembly 4.

[0034] As shown in the figure, Figures 1 to 5 The driving assembly 2 includes a driving block 21 and a lead screw 22, the inside of the supporting seat 14 is hollow, the driving block 21 is slidably installed on the supporting seat 14, driven sliding blocks 23 are slidably installed on the supporting seat 14 and located on both sides of the driving block 21, the driving block 21 is trapezoidal, the end of the driven sliding block 23 close to the driving block 21 is beveled, the driving block 21 is slidably connected with the driven sliding block 23, the end of the driven sliding block 23 away from the driving block 21 abuts against the bottom of the clamping block 16, the lead screw 22 is rotatably installed on the supporting seat 14, the driving block 21 is threadedly connected with the lead screw 22, and a rotating nut 24 is coaxially and fixedly installed on the end of the lead screw 22 away from the supporting seat 14; when the workpiece is placed on the supporting seat 14 by the worker, the worker drives the rotating nut 24 to rotate by using a tool, the rotating nut 24 rotates synchronously with the lead screw 22 in the process of rotating, the lead screw 22 moves along the length direction of the supporting seat 14 in the process of rotating, the driving block 21 pushes the two driven sliding blocks 23 out of the inside of the supporting seat 14 in the process of moving, the end of the driven sliding block 23 away from the driving block 21 pushes the bottom of the clamping block 16, and the middle part of the clamping block 16 is rotatably installed on the supporting rod 15, therefore, the ends of the two clamping blocks 16 away from the driven sliding blocks 23 move towards each other, thereby conveniently clamping and fixing the workpiece.

[0035] As shown in the figure, Figures 1 to 5As shown, the clamping block 16 is provided with a mounting hole 161 away from one end of the driven slider 23, a sliding rod 162 is slidingly installed in the mounting hole 161, an abutting block 163 is installed away from one end of the sliding rod 162, a spring 164 is sleeved on the sliding rod 162, one end of the spring 164 is connected with the abutting block 163, and the other end is connected with the clamping block 16; in use, when the staff uses the driving assembly 2 to drive the two clamping blocks 16 to clamp and fix the workpiece placed on the support seat 14, the abutting block 163 will be in contact with the surface of the workpiece, the sliding rod 162 will move along the length direction of the mounting hole 161, and the spring 164 will be compressed. The compressed spring 164 has a tendency to return to the original length, so as to push the abutting block 163 to abut against the surface of the workpiece, thereby improving the clamping effect of the clamping block 16 on the workpiece, and making the workpiece more stably located on the support seat 14 during processing.

[0036] As shown in the drawings, Figures 1 to 5 The support seat 14 is slidingly arranged along the length direction of the support plate 13, a plurality of positioning holes 5 are uniformly arranged along the length direction of the support plate 13, a plurality of fixing bolts 51 are uniformly installed on the support seat 14, the bottom of the fixing bolt 51 is threadedly connected with the positioning hole 5, the clamping block 16 is slidingly installed on the support rod 15, the support rod 15 is a threaded rod, and positioning nuts 52 are installed on both sides of the support rod 15 and located on both sides of the clamping block 16; different workpieces have different shapes and sizes, when a larger size part needs to be fixed, the support seat 14 is slid along the length direction of the support plate 13, when the support seat 14 moves to a specified position, the fixing bolt 51 is threadedly connected with the positioning hole 5 corresponding to the current position, so as to fix the current position of the support seat 14, then the clamping block 16 and the positioning nut 52 are synchronously moved to a specified position, the two positioning nuts 52 limit the rotation of the clamping block 16 with the support rod 15 as the center, and when the clamping block 16 clamps and fixes the workpiece, one of the positioning nuts 52 is screwed, and the clamping block 16 is clamped and fixed by the two positioning nuts 52, so that the clamping block 16 is more stable during work.

[0037] As shown in the drawings, Figures 1 to 5As shown, the auxiliary fixing assembly 3 comprises two mounting blocks 31, the two sides of the support base 14 are provided with moving grooves 32, the mounting blocks 31 are slidingly arranged in the moving grooves 32, the connecting rods 33 are rotationally arranged on the mounting blocks 31, a plurality of limiting holes 34 are uniformly arranged on the side wall of the support base 14 along the length direction of the support base 14, the limiting screw rods 35 are arranged on the connecting rods 33, the bottoms of the limiting screw rods 35 are threadedly connected with the limiting holes 34, the mounting rods 36 are arranged on the connecting rods 33, the auxiliary fixing rods 37 are threadedly connected on the mounting rods 36 along the vertical direction, the auxiliary fixing blocks 371 are arranged at the bottoms of the auxiliary fixing rods 37, the limiting rods 39 are slidingly arranged on the mounting rods 36 along the vertical direction, the bottoms of the limiting rods 39 are fixedly connected with the auxiliary fixing blocks 371, and the auxiliary nuts 38 are coaxially arranged at the tops of the auxiliary fixing rods 37; when the workers place the workpieces on the support base 14, in order to improve the stability of the workpieces in the machining process, the workers move the mounting blocks 31 along the length direction of the moving grooves 32, adjust the mounting blocks 31 to the appropriate positions, rotate the connecting rods 33, and make the mounting rods 36 located at the top of the workpieces, at this time, make the limiting screw rods 35 fixedly arranged in the limiting holes 34 corresponding to the current positions, so as to fix the current positions of the connecting rods 33, then the workers rotate the auxiliary nuts 38 by using tools, the auxiliary nuts 38 are rotated in the process to drive the auxiliary fixing rods 37 to rotate, so that the auxiliary fixing rods 37 are elongated along the vertical direction, the auxiliary fixing rods 37 are moved to drive the auxiliary fixing blocks 371 to synchronously move, the auxiliary fixing blocks 371 abut against the workpieces, so as to press and fix the workpieces on the support base 14, the limiting rods 39 can limit the moving direction of the auxiliary fixing blocks 371, so that the auxiliary fixing blocks 371 can move along the vertical direction; when the auxiliary fixing assembly 3 is not needed to be used, the limiting screw rods 35 are loosened, then the connecting rods 33 and the mounting rods 36 are rotated to be below the support plate 13, and the mounting blocks 31 are fixed by using the limiting screw rods 35, so as to avoid that the auxiliary fixing assembly 3 after being accommodated affects the machining of the parts.

[0038] As Figures 1 to 5As shown, the collecting assembly 4 comprises a waste collecting box 41, the bottom of the collecting groove 17 is communicated with the waste collecting box 41, the inside of the waste collecting box 41 is provided with a filter plate 42, the bottom of the waste collecting box 41 is communicatedly installed with an axial flow fan 43, the base 1 is provided with a mounting groove 44, and the waste collecting box 41 is slidingly installed in the mounting groove 44; during the machining of the machine tool on the parts, metal scraps and dust will be generated, which will slide to the waste collecting box 41 under the action of gravity through the collecting groove 17, at this time, the axial flow fan 43 is started, and the air in the waste collecting box 41 is continuously discharged during the rotation of the axial flow fan 43, so that a negative pressure is formed in the waste collecting box 41, the outside air flows into the waste collecting box 41 through the collecting groove 17, and the filter plate 42 filters the flowing air, and the dust and impurities are retained above the filter plate 42, and only the air can smoothly pass through the filter plate 42, so that the metal dust can be collected.

[0039] As shown in the figure, Figures 1 to 5 The side wall of the waste collecting box 41 is fixedly installed with a pull rod 45 along the horizontal direction, one end of the pull rod 45 away from the waste collecting box 41 is fixedly installed with a holding block 46, and the base 1 is provided with a positioning groove 47 for placing the holding block 46; when the metal waste in the waste collecting box 41 is full, the worker holds the holding block 46 with his hand, and then pulls the holding block 46 away from the base 1, the waste collecting box 41 moves along the length direction of the mounting groove 44, so as to slide out of the base 1, so that the worker can process the waste metal in the waste collecting box 41, after the processing is completed, the worker needs to put the waste collecting box 41 back into the base 1, the worker holds the holding block 46 again, and then pushes the waste collecting box 41 into the base 1 again, when the holding block 46 is inserted into the positioning groove 47, the waste collecting box 41 is located directly below the collecting groove 17.

[0040] As shown in the figure, Figures 1 to 5 The top of the supporting seat 14 and the clamping block 16 are both installed with anti-skid pads 18, and the base 1 is uniformly provided with a plurality of fixing grooves 19; by installing the anti-skid pads 18 on the top of the supporting seat 14 and the clamping block 16, the friction between the workpiece and the anti-skid pads 18 can be improved, and the stability of the workpiece during machining can be improved, in the embodiment, the anti-skid pads 18 are made of rubber material, and the supporting seat 14 and the clamping block 16 are in contact with the workpiece through the rubber, so as to protect the surface of the workpiece; the plurality of fixing grooves 19 are uniformly provided on the base 1, so that the worker can fix and install the base 1 on the machine tool through bolts.

[0041] The implementation principle of the embodiment is that when in use, the workpiece is placed on the support seat 14, then the two clamping blocks 16 are driven to rotate towards each other by the driving assembly 2, so as to facilitate clamping and fixing of the workpiece, the auxiliary fixing assembly 3 is used, so that the fixing effect of the part is improved, the part is more stable in the machining process, so that the machining precision is improved, and the generated debris in the part machining process falls into the collecting groove 17, and then the collecting assembly 4 is used for collecting the debris.

[0042] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any person skilled in the art can make many possible changes and modifications to the technical solution of the utility model or modify it into equivalent embodiments with equivalent changes without departing from the scope of the technical solution of the utility model. Therefore, any modification, equivalent change and modification of the above embodiment according to the technical solution of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the protection scope of the technical solution.

Claims

1. A turning jig for a CNC lathe, characterized by: The utility model provides a workpiece clamping and fixing device, including base (1), the connecting disc (11) is rotationally arranged on base (1), the mounting seat (12) is coaxially arranged on connecting disc (11), the support plate (13) is arranged on mounting seat (12), the support seat (14) for placing workpiece is arranged on support plate (13), the support rod (15) is arranged on the both sides of support seat (14) on mounting seat (12), the clamping block (16) is rotationally arranged on support rod (15), the drive assembly (2) for driving two clamping blocks (16) is arranged in support seat (14) and is fixed to workpiece, the auxiliary fixing assembly (3) is arranged on support seat (14), the collecting groove (17) of V type is seted up on base (1), the collecting assembly (4) for collecting workpiece machining waste is arranged on the bottom of collecting groove (17) on base (1).

2. The turning fixture for a CNC lathe according to claim 1, wherein: The drive assembly (2) includes drive block (21) and screw rod (22), the inside hollow of support seat (14) is seted up, drive block (21) is slidably arranged on support seat (14), driven slider (23) is slidably arranged on the both sides of drive block (21) on support seat (14), drive block (21) is trapezoidal, the end inclined surface of driven slider (23) is close to drive block (21), drive block (21) is slidably connected with driven slider (23), the end of driven slider (23) away from drive block (21) is abutted with the bottom of clamping block (16), screw rod (22) is rotationally arranged on support seat (14), drive block (21) is threadedly connected with screw rod (22), the end of screw rod (22) away from support seat (14) is coaxially provided with rotating nut (24).

3. The turning fixture for a CNC lathe according to claim 1, wherein: The end of clamping block (16) away from driven slider (23) is provided with mounting hole (161), sliding rod (162) is slidably arranged in mounting hole (161), abutting block (163) is arranged on the end of sliding rod (162) away from clamping block (16), spring (164) is sleeved on sliding rod (162), one end of spring (164) is connected with abutting block (163), and the other end of spring (164) is connected with clamping block (16).

4. The turning fixture for a CNC lathe according to claim 1, wherein: The support seat (14) is slidably arranged along the length direction of support plate (13), a plurality of positioning holes (5) are evenly formed on the length direction of support plate (13), a plurality of fixed bolts (51) are evenly arranged on the support seat (14), the bottom of fixed bolt (51) is threadedly connected with positioning hole (5), the clamping block (16) is slidably arranged on the support rod (15), the support rod (15) is a threaded rod, and positioning nut (52) is arranged on the both sides of clamping block (16) on support rod (15).

5. The turning fixture for a CNC lathe according to claim 3, wherein: The auxiliary fixing assembly (3) comprises two mounting blocks (31), the two sides of the support base (14) are provided with moving grooves (32), the mounting blocks (31) are slidingly arranged in the moving grooves (32), the mounting blocks (31) are provided with connecting rods (33) which are rotatably arranged on the mounting blocks (31), the sidewalls of the support base (14) are uniformly provided with a plurality of limiting holes (34) along the length direction of the sidewalls, the connecting rods (33) are provided with limiting screws (35), the bottoms of the limiting screws (35) are in threaded connection with the limiting holes (34), the connecting rods (33) are provided with mounting rods (36), the mounting rods (36) are provided with auxiliary fixing rods (37) which are in threaded connection along the vertical direction, the bottoms of the auxiliary fixing rods (37) are provided with auxiliary fixing blocks (371), the mounting rods (36) are provided with limiting rods (39) which are slidingly arranged along the vertical direction, the bottoms of the limiting rods (39) are fixedly connected with the auxiliary fixing blocks (371), and the tops of the auxiliary fixing rods (37) are coaxially provided with auxiliary nuts (38).

6. The turning fixture for a CNC lathe according to claim 1, wherein: The collecting assembly (4) comprises a waste collecting box (41), the inside of the waste collecting box (41) is provided with a filter plate (42), the bottom of the waste collecting box (41) is provided with an axial flow fan (43), the base (1) is provided with a mounting groove (44), and the waste collecting box (41) is slidingly arranged in the mounting groove (44).

7. The turning fixture according to claim 6, characterized in that: The waste collecting box (41) is provided with a pull rod (45), the end, away from the waste collecting box (41), of the pull rod (45) is provided with a holding block (46), and the base (1) is provided with a positioning groove (47) for placing the holding block (46).

8. The turning fixture according to claim 1, wherein: The top of the support base (14) and the clamping block (16) are provided with anti-skid pads (18), and the base (1) is uniformly provided with a plurality of fixing grooves (19).