A tooling fixture for CNC machining of metal parts

Abstract

This utility model relates to the field of CNC machining technology and discloses a tooling fixture for CNC machining of metal parts, including a base plate. A base plate is fixedly mounted on the upper end of the base plate. Multiple sliding grooves are evenly opened on the upper end of the base plate. Bidirectional screws are rotatably mounted on the inner walls of the rear ends of the multiple sliding grooves. Clamping mechanisms are threaded onto the front and rear ends of the multiple bidirectional screws. The clamping mechanism includes a main block, an adjusting shaft, a plug rod, and a clamping plate. The adjusting shaft movably passes through the front end of the main block and extends to the rear end. Insertion holes are opened on the upper end and sides of the adjusting shaft. A hole is opened through the upper end of the main block. The plug rod movably extends through the hole into the interior of the main block. A spring is mounted on the plug rod. In this utility model, by pulling the plug rod upward to move it out of the insertion hole, rotating the knob drives the adjusting shaft to rotate, thereby driving the angle adjustment of the clamping plate, achieving quick and convenient angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, and in particular to a tooling fixture for CNC machining of metal parts. Background Technology

[0002] Metal parts refer to various components or parts made of metal materials, widely used in industries such as machinery, electronics, construction, transportation, and aerospace. They typically possess excellent mechanical properties, such as strength, toughness, and corrosion resistance, and can be used for various purposes including support, connection, and transmission. Fixtures and jigs used in CNC machining of metal parts are support and fixing devices specifically designed and manufactured for machining metal parts on CNC machine tools. Their main function is to ensure the workpiece is stable and accurately positioned during machining, thereby achieving high-precision and high-efficiency machining.

[0003] Existing tooling fixtures mainly use two clamping plates to hold the metal parts to be machined. While this clamping method provides a certain degree of fixation for the workpiece, it also fixes the workpiece's machining angle, making it inconvenient to adjust different machining angles. Furthermore, some clamping plates are designed to be difficult to disassemble, leading to inconvenience in maintenance and replacement. With increased use, the clamping plates are prone to wear or deformation, affecting the clamping accuracy and stability, thus impacting machining quality.

[0004] Therefore, those skilled in the art have provided a tooling fixture for CNC machining of metal parts to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a tooling fixture for CNC machining of metal parts. By pulling the insert rod upward, it is moved out of the insertion hole, and the spring is compressed at the same time. Turning the knob drives the adjustment shaft to rotate, thereby driving the angle adjustment of the clamping plate, realizing quick and convenient angle adjustment. After the adjustment is completed, the insert rod is released, and the spring pushes the insert rod back into the insertion hole to fix the clamping plate and ensure stable clamping to avoid accidental movement. Next, by unscrewing the screw, the clamping plate is removed from the rear end of the adjustment shaft. After replacing it with a new clamping plate, it is installed back at the rear end of the adjustment shaft and fixed by bolts passing through the first threaded hole and the second threaded hole.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tooling fixture for CNC machining of metal parts, including a base plate, a base plate fixedly disposed on the upper end of the base plate, a plurality of sliding grooves evenly opened on the upper end of the base plate, a bidirectional screw rotatably disposed on the inner wall of the rear end of the plurality of sliding grooves, and a clamping mechanism threadedly sleeved on the front and rear ends of the plurality of bidirectional screws.

[0007] The clamping mechanism includes a main block, an adjusting shaft, a plug rod, and a clamping plate. The adjusting shaft extends movably through the front end of the main block to the rear end. The adjusting shaft has insertion holes at its upper and lower ends and on both sides. The main block has a through hole at its upper end. The plug rod extends movably through the hole into the interior of the main block. A spring is fitted on the plug rod. The upper end of the spring is fixedly mounted on the inner top surface of the main block, and the lower end of the spring is fixedly mounted on the lower middle part of the plug rod.

[0008] Furthermore, a first threaded hole is provided in the middle of the clamping plate, and a second threaded hole is provided at the rear end of the adjusting shaft.

[0009] Furthermore, the first threaded hole and the second threaded hole have the same inner diameter, and bolts are threaded inside the first threaded hole and the second threaded hole.

[0010] Furthermore, a knob is fixedly provided at the front end of the adjustment shaft.

[0011] Furthermore, the front ends of the plurality of bidirectional screws rotate through the inner wall of the front end of the slide groove to the outside of the front end of the substrate, and a hexagonal sleeve is fixedly provided on the front ends of the plurality of bidirectional screws.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model proposes a tooling fixture for CNC machining of metal parts. The tooling fixture moves the insert rod out of the insertion hole by pulling it upward, and at the same time the spring is compressed. Then, by rotating the knob, the adjustment shaft is rotated, and the clamping plate is rotated by the adjustment shaft, so as to realize the rapid adjustment of the clamping plate angle. After the clamping plate angle is adjusted, the user releases the insert rod, and the insert rod is pushed into the insertion hole under the elastic force of the spring. In this way, the clamping plate is fixed, preventing accidental movement and changes in the clamping angle, and ensuring clamping stability.

[0014] 2. The present invention proposes a tooling fixture for CNC machining of metal parts. The tooling fixture removes the clamping plate from the rear end of the adjusting shaft by unscrewing the screw outward, and then installs a new clamping plate on the rear end of the adjusting shaft. Then, the clamping plate is fixed by passing bolts through the first threaded hole and the second threaded hole. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a cross-sectional internal structure diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the clamping mechanism of this utility model;

[0018] Figure 4 This is an exploded view of the internal structure of the clamping mechanism of this utility model;

[0019] Figure 5 This is an exploded view of the rear structure of the clamping plate of this utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Base plate; 3. Slide groove; 4. Bidirectional screw; 5. Clamping mechanism; 6. Hexagonal sleeve; 501. Main block; 502. Adjusting shaft; 503. Insertion hole; 504. Insertion rod; 505. Spring; 506. Hole; 507. Knob; 508. Clamping plate; 509. First threaded hole; 5010. Second threaded hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 , Figure 2 An embodiment of this utility model provides a tooling fixture for CNC machining of metal parts, including a base plate 1, a base plate 2 fixedly disposed on the upper end of the base plate 1, a plurality of sliding grooves 3 evenly opened on the upper end of the base plate 2, a bidirectional screw 4 rotatably disposed on the inner wall of the rear end of each of the plurality of sliding grooves 3, a clamping mechanism 5 threadedly sleeved on the front and rear ends of each of the plurality of bidirectional screws 4, the front end of each of the plurality of bidirectional screws 4 rotatably passing through the inner wall of the front end of the sliding groove 3 to the outside of the front end of the base plate 2, and a hexagonal sleeve 6 fixedly disposed on the front end of each of the plurality of bidirectional screws 4.

[0024] Specifically, the bidirectional screw 4 is a bidirectional reverse screw, and the two clamping mechanisms 5 are threaded onto the bidirectional screw 4. Therefore, when the user rotates the bidirectional screw 4, the two clamping mechanisms 5 are driven to move through the threaded transmission. Secondly, rotating the bidirectional screw 4 in the forward direction will drive the two clamping mechanisms 5 to move closer to the middle of the screw, fixing the metal part to be processed. Rotating the bidirectional screw 4 in the reverse direction will drive the two clamping mechanisms 5 to move in opposite directions to both ends of the screw, thereby releasing the metal part.

[0025] Reference Figure 3 , Figure 4The clamping mechanism 5 includes a main body block 501, an adjusting shaft 502, an insert rod 504, and a clamping plate 508. The adjusting shaft 502 extends from the front end to the rear end of the main body block 501. Insertion holes 503 are provided at the upper and lower ends and on both sides of the adjusting shaft 502. A hole 506 is provided at the upper end of the main body block 501. The insert rod 504 extends into the main body block 501 through the hole 506. A spring 505 is sleeved on the insert rod 504. The upper end of the spring 505 is fixedly installed on the inner top surface of the main body block 501, and the lower end of the spring 505 is fixedly installed at the lower end of the middle of the insert rod 504. A knob 507 is fixedly installed at the front end of the adjusting shaft 502.

[0026] Specifically, a horizontal bar is fixed at the upper end of the insertion rod 504. The user pulls the insertion rod 504 upwards using this horizontal bar to move the insertion rod 504 out of the insertion hole 503. During this process, the spring 505 is compressed. Then, by turning the knob 507, the adjusting shaft 502 is rotated, which in turn drives the clamping plate 508 to rotate. When the clamping plate 508 rotates to a vertical position, the opening of the insertion hole 503 on its side will face upwards. At this time, the user releases the insertion rod 504, and the spring 505 releases its elastic force to push the insertion rod 504 into the insertion hole 503 above the adjusting shaft 502. Because the elastic force of the spring 505 will push the insertion rod 504 to continue to be inserted into the insertion hole 503, the adjusting shaft 502 is fixed in this way to prevent it from rotating accidentally and causing the clamping plate 508 at its rear end to deflect.

[0027] Reference Figure 3 , Figure 4 The clamping plate 508 has a first threaded hole 509 in the middle and the adjusting shaft 502 has a second threaded hole 5010 at the rear end. The first threaded hole 509 and the second threaded hole 5010 have the same inner diameter and bolts are threaded inside the first threaded hole 509 and the second threaded hole 5010.

[0028] Specifically, the clamping plate 508 will wear out after prolonged use, which will affect the clamping effect. In this case, the user only needs to insert an Allen wrench into the bolt (the bolt is an Allen bolt), then turn the bolt outward to unscrew it, and then remove the worn clamping plate 508. Then, install a new clamping plate 508. When installing the new clamping plate 508, the user needs to align the octagonal protrusion at the center of the front end of the clamping plate 508 with the octagonal groove at the rear end of the adjusting shaft 502, and then install it. Next, screw the bolt into the first threaded hole 509 and the second threaded hole 5010 to complete the replacement of the clamping plate 508.

[0029] Working principle: The user places the metal part to be processed above a single slide groove 3, between the two clamping mechanisms 5 on a single double-acting screw 4. The user then inserts an Allen wrench into a hex socket 6 and rotates the wrench to rotate the double-acting screw 4. The rotation of the double-acting screw 4 causes the two clamping mechanisms 5 on its front and rear ends to gradually move closer to the metal part, clamping and fixing the metal part through the clamping plate 508. When the user needs to adjust the clamping angle, first pull the insert rod 50 upwards. 4. Move it upwards to disengage it from the insertion hole 503, which will compress the spring 505. Then, the user rotates the adjusting shaft 502 through the knob 507, thereby driving the clamping plate 508 to rotate and adjusting the clamping angle of the clamping plate 508. When the clamping plate 508 changes from horizontal clamping to vertical clamping, the user releases the insertion rod 504. The insertion rod 504 will be reinserted into the insertion hole 503 on the side of the adjusting shaft 502 under the elastic force of the spring 505, fixing the clamping plate 508 after the angle has been adjusted.

[0030] Secondly, when the clamp wears out due to long-term use and needs to be replaced, the user inserts an Allen wrench into the bolt and then turns the bolt outward to unscrew it. Next, the clamping plate 508 is removed from the rear end of the adjusting shaft 502, and the front end of the new clamping plate 508 is aligned with the rear end of the adjusting shaft 502 and installed. At this time, the bolt is inserted into the first threaded hole 509, and the bolt is turned inward by the Allen wrench so that its thread passes through the first threaded hole 509 and into the second threaded hole 5010, thereby fixing the clamping plate 508 to the rear end of the adjusting shaft 502.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling fixture for CNC machining of metal parts, comprising a base plate (1), characterized in that: The base plate (1) is fixedly provided with a base plate (2) at the upper end. Multiple sliding grooves (3) are evenly provided at the upper end of the base plate (2). Bidirectional screws (4) are rotatably provided on the inner wall of the rear end of the multiple sliding grooves (3). Clamping mechanisms (5) are threaded on the front and rear ends of the multiple bidirectional screws (4). The clamping mechanism (5) includes a main body block (501), an adjusting shaft (502), a plug rod (504), and a clamping plate (508). The adjusting shaft (502) extends from the front end of the main body block (501) to the rear end. The upper and lower ends and both sides of the adjusting shaft (502) are provided with plug holes (503). The upper end of the main body block (501) is provided with a hole (506). The plug rod (504) extends through the hole (506) into the interior of the main body block (501). A spring (505) is sleeved on the plug rod (504). The upper end of the spring (505) is fixedly set on the inner top surface of the main body block (501), and the lower end of the spring (505) is fixedly set on the lower part of the middle of the plug rod (504).

2. The tooling fixture for CNC machining of metal parts according to claim 1, characterized in that: The clamping plate (508) has a first threaded hole (509) in the middle, and the adjusting shaft (502) has a second threaded hole (5010) at the rear end.

3. The tooling fixture for CNC machining of metal parts according to claim 2, characterized in that: The first threaded hole (509) and the second threaded hole (5010) have the same inner diameter, and bolts are provided inside the first threaded hole (509) and the second threaded hole (5010).

4. The tooling fixture for CNC machining of metal parts according to claim 1, characterized in that: A knob (507) is fixedly installed at the front end of the adjusting shaft (502).

5. A tooling fixture for CNC machining of metal parts according to claim 1, characterized in that: The front ends of the multiple bidirectional screws (4) rotate through the inner wall of the front end of the slide groove (3) to the outside of the front end of the substrate (2), and the front ends of the multiple bidirectional screws (4) are fixedly provided with hexagonal sleeves (6).

Images