A tooling fixture for machining parts

Abstract

This application discloses a parts processing tooling fixture, comprising a base plate with mounting holes for fixing; a rotary drive mechanism fixed to the base plate; and a frame connected to the rotary drive mechanism via a turntable and a rotating shaft, capable of being driven by the turntable to rotate as a whole. This application, through the setting of the fixture unit, can fix two workpieces, and through a sliding guide structure, allows the fixture unit to move freely on the frame. Combined with a first locking element, it achieves rapid positioning and locking, and can flexibly configure the clamping points according to the part size, increasing the clamping range and reducing tooling costs. Through the setting of the rotary drive mechanism, the upper and lower surfaces of the fixture can be flipped, facilitating the processing of the workpieces on the fixture. Through the setting of the elastic element, the pressure plate on the fixture unit can be pushed away from the workpiece during unloading, making it easier for the worker to remove the workpiece.

Description

Technical Field

[0001] This application relates to the field of machining technology, specifically to a tooling fixture for machining parts. Background Technology

[0002] In machining, the effectiveness of the fixture directly determines the machining efficiency and accuracy. Existing fixtures have certain drawbacks: First, their fixed structure makes it difficult to flexibly adjust the clamping distance, resulting in a single fixture only being suitable for a single part size, thus lacking versatility; second, machining different sides of a part requires multiple disassembly and assembly, which is not only inefficient but also causes significant repeatability errors that severely affect accuracy; third, during unloading from traditional fixtures, the pressure plate often fits tightly against the workpiece surface, making separation difficult and affecting the material changeover speed. Therefore, this application proposes a part machining tooling fixture to solve these problems. Summary of the Invention

[0003] The technical problem to be solved by this application is to overcome the existing defects and provide a tooling fixture for machining parts, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a parts processing tooling fixture, comprising a base plate with mounting holes for fixing; a rotary drive mechanism fixed to the base plate; a frame connected to the rotary drive mechanism via a turntable and a rotating shaft, and capable of being driven by the mechanism to rotate as a whole; at least one fixture unit movably mounted on the frame via a sliding guide structure, and capable of being fixed to a desired position on the frame by a first locking member; the fixture unit includes a pressure plate and a base for supporting the workpiece, wherein there are two bases arranged symmetrically, and both the upper and lower surfaces of the two bases are provided with placement grooves for positioning the workpiece; there are two pressure plates arranged laterally parallel to each other in front of the bases and connected to the bases via a second locking member, and the pressure plates are provided with sliding grooves for the second locking member to move; the bases are provided with locking holes corresponding to the second locking member.

[0005] Furthermore, an elastic element is provided inside the locking hole, which can provide a restoring force to move the pressure plate away from the workpiece when the second locking member is released.

[0006] Furthermore, the locking hole is a stepped hole, which includes a coaxial large-diameter section and a small-diameter section with internal threads. The second locking element is a second bolt, which is screwed into the small-diameter section. The elastic element is a spring, which is housed in the large-diameter section.

[0007] Furthermore, a baffle for supporting the workpiece is provided on the rear side of the base.

[0008] Furthermore, the rotary drive mechanism includes a servo motor, a reducer, and two support columns. The support columns are fixed on the base plate and connected to the turntable via a rotating shaft. The reducer is fixed on the support columns, with its input end connected to the servo motor and its output end connected to the rotating shaft on the turntable. The support columns are fixed on the base plate.

[0009] Furthermore, the sliding guide structure includes an optical axis disposed on the frame and a slider disposed on the base of the clamping unit, the slider being slidably engaged with the optical axis.

[0010] Furthermore, the first locking element is a first bolt, and the two ends of the base are fastened to the upper and lower surfaces of the frame by the first bolt and the nut. The second locking element is a second bolt.

[0011] Furthermore, the mounting hole is a strip-shaped hole.

[0012] Compared with the prior art: This application, through the setting of the clamping unit, can fix two workpieces, and through the sliding guide structure, the furniture unit can move freely on the frame. Combined with the first locking member, it can achieve rapid positioning and locking. The clamping points can be flexibly configured according to the size of the parts, thereby increasing the clamping range and reducing tooling costs. Through the setting of the rotary drive mechanism, the upper and lower surfaces of the clamp can be flipped, thereby facilitating the processing of the workpieces on the clamp. Through the setting of the elastic element, the pressure plate on the clamping unit can be pushed away from the workpiece during unloading, thereby facilitating the worker to remove the workpiece. Attached Figure Description

[0013] Figure 1 This is a first structural schematic diagram of this application;

[0014] Figure 2 This is the front view of this application;

[0015] Figure 3 This is a top view of this application;

[0016] Figure 4 for Figure 3 A magnified view of part A in the image;

[0017] Figure 5 This is a schematic diagram of the second structure of this application.

[0018] In the diagram: 1. Base plate; 2. Mounting hole; 3. Support column; 4. Rotating shaft; 5. Turntable; 6. Frame; 7. Reducer; 8. Servo motor; 9. Fixture unit; 91. Pressure plate; 92. Base; 93. First bolt; 94. Second bolt; 95. Slide groove; 96. Stepped hole; 961. Large diameter section; 962. Small diameter section; 97. Spring; 99. Placement groove; 10. Sliding guide structure; 101. Optical axis; 102. Slider; 11. Baffle. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0020] Please see Figure 1-5 This application provides a technical solution for a parts machining tooling fixture: a parts machining tooling fixture, the basic component of which is a base plate 1, usually made of thick steel plate to ensure overall rigidity. The strip-shaped mounting holes 2 opened on the base plate 1 allow the fixture to be initially positioned and finally locked on the machine tool table using bolts. This design provides installation tolerance and simplifies the positioning process of the fixture.

[0021] The rotary drive mechanism includes a servo motor 8, a reducer 7, and two support columns 3. The support columns 3 are fixed to the base plate 1 and connected to the turntable 5 via a rotating shaft 4. The reducer 7 is fixed to the support columns 3, with its input end connected to the servo motor 8 and its output end connected to the rotating shaft 4 on the turntable 5. The support columns 3 are fixed to the base plate 1, and the reducer 7 is mounted on the side of the support columns 3. The servo motor 8 is connected to the input shaft of the reducer 7, and the output shaft of the reducer 7 is connected to the rotating shaft 4 via a coupling. The rotating shaft 4 is supported within the support columns 3 by a pair of high-precision bearings, and its end is fixedly connected to the turntable 5.

[0022] Two turntables 5 are bolted together to support a rectangular frame 6. Its workflow and advantages are as follows: when machining the other side of the workpiece is required, the CNC system sends a command to the servo motor 8, which rotates by a predetermined angle. The power is then amplified and reduced in speed by the reducer 7, and driven by the rotating shaft 4 to perform precise rotary motion of the turntables 5 and the frame 6. The core advantage of this structure is that it integrates and automates the workpiece flipping action, enabling multi-sided machining to be completed in a single clamping, which is key to improving accuracy and efficiency.

[0023] A sliding guide structure 10 is installed on the frame 6. The sliding guide structure 10 includes an optical axis 101 disposed on the frame 6 and a slider 102 disposed on the base 92 of the clamp unit 9. The slider 102 slides in cooperation with the optical axis 101.

[0024] There are two optical axes 101, and the two optical axes 101 are arranged in parallel. The base 92 of the fixture unit 9 is equipped with a matching slider 102.

[0025] Each fixture unit 9 comprises two symmetrically arranged bases 92, which are locked in place by a first bolt 93 and a nut passing through the upper and lower crossbeams of the frame 6. The working principle and benefit of this spacing adjustment mechanism is that by loosening the first bolt 93, the operator can easily slide the entire fixture unit 9 along the optical axis 101 to the ideal position to accommodate the part length, and then re-lock it. This allows the tooling to instantly switch between parts of different specifications, achieving rapid production response and high flexibility.

[0026] There are two clamping units 9, which are movably mounted on the frame 6 via a sliding guide structure 10 and can be fixed to the desired position on the frame 6 by a first locking member. The clamping unit 9 includes a pressure plate 91 and a base 92 for supporting the workpiece. There are two bases 92 arranged symmetrically. The upper and lower surfaces of the two bases 92 are provided with placement grooves 99 for positioning the workpiece. There are two pressure plates 91 arranged horizontally and parallel to each other in front of the bases 92 and connected to the bases 92 by a second locking member. The pressure plates 91 are provided with sliding grooves 95 for the second locking member to move. The bases 92 are provided with locking holes corresponding to the second locking member.

[0027] The core of the clamping function lies in the clamping unit 9. Both the upper and lower surfaces of the base 92 are machined with placement grooves 99 for pre-positioning the workpiece before clamping. The pressure plate 91 is connected to the base 92 via a second bolt 94. The strip groove 95 on the pressure plate 91 provides movement space for the second bolt 94. When adjusting the distance between the two bases 92, the second bolt 94 is avoided by the groove 95, preventing movement interference.

[0028] An elastic element is provided inside the locking hole. When the second locking element is released, the elastic element provides a restoring force to move the pressure plate 91 away from the workpiece.

[0029] The locking hole is a stepped hole 96, which includes a coaxial large-diameter section 961 and a small-diameter section 962 with internal threads. The second locking element is a second bolt 94, which is screwed into the small-diameter section 962. The elastic element is a spring 97, which is housed in the large-diameter section 961.

[0030] When the second bolt 94 is tightened to clamp the workpiece, the bolt head presses against the pressure plate 91, causing it to press against the workpiece, at which point the spring 97 is compressed. When machining is complete and the second bolt 94 is loosened, the axial pressure applied to the spring 97 disappears, and the restoring force of the spring 97 pushes the pressure plate 91, causing it to move smoothly backward, thus automatically separating it from the workpiece surface. The outstanding advantage of this design is that it achieves non-destructive, zero-contact automatic unloading, completely avoiding any damage to the finished surface during the unloading process, while freeing the operator from tedious prying and pulling actions, greatly improving operational safety and efficiency.

[0031] In use: Based on the dimensions of the part being machined, loosen the first bolt 93 of each clamping unit 9, adjust its position on the frame 6, and then tighten it. Place the workpiece blank into the placement slot 99 of the base 92, and tighten the second bolt 94 of each clamping unit in sequence until the workpiece is reliably clamped. Start the machining program to machine surface A of the workpiece. After surface A is machined, the servo motor 8 drives the frame 6 to rotate by a specific angle (e.g., 90°, 180°) to turn surface B or C to the machining position. After all surfaces are machined, loosen the second bolt 94 in sequence, and the pressure plate 91 automatically springs open under the action of the spring 97, allowing the operator to safely and quickly remove the finished workpiece.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling fixture for machining parts, characterized in that, include: The base plate (1) has mounting holes (2) for fixing. A rotary drive mechanism, which is fixed to the base plate (1); The frame (6) is connected to the rotary drive mechanism via a turntable (5) and a rotating shaft (4) and can be driven by it to rotate as a whole; At least one clamping unit (9) is movably mounted on the frame (6) via a sliding guide structure (10) and can be fixed to the desired position on the frame (6) by a first locking member; the clamping unit (9) includes a pressure plate (91) and a base (92) for carrying the workpiece. There are two bases (92) arranged symmetrically. The upper and lower surfaces of the two bases (92) are provided with placement grooves (99) for positioning the workpiece. There are two pressure plates (91) arranged horizontally parallel in front of the bases (92) and connected to the bases (92) by a second locking member. The pressure plates (91) are provided with a sliding groove (95) for the second locking member to move. The bases (92) are provided with locking holes corresponding to the second locking member.

2. The part machining tooling fixture according to claim 1, characterized in that: An elastic element is provided in the locking hole, which can provide a restoring force to move the pressure plate (91) away from the workpiece when the second locking member is released.

3. The part machining tooling fixture according to claim 2, characterized in that: The locking hole is a stepped hole (96), which includes a coaxial large diameter section (961) and a small diameter section (962) with internal threads. The second locking element is a second bolt (94), which is screwed into the small diameter section (962). The elastic element is a spring (97), which is housed in the large diameter section (961).

4. The part machining tooling fixture according to claim 1, characterized in that: The base (92) is provided with a baffle (11) for supporting the workpiece on the rear side.

5. A tooling fixture for machining parts according to claim 1, characterized in that: The rotary drive mechanism includes a servo motor (8), a reducer (7) and two support columns (3). The support columns (3) are fixed on the base plate (1). The support columns (3) are connected to the turntable (5) through a rotating shaft (4). The reducer (7) is fixed on the support column (3). Its input end is connected to the servo motor (8), and its output end is connected to the rotating shaft (4) on the turntable (5). The support columns (3) are fixed on the base plate (1).

6. A tooling fixture for machining parts according to claim 1, characterized in that: The sliding guide structure (10) includes an optical axis (101) disposed on the frame (6) and a slider (102) disposed on the base (92) of the clamp unit (9), wherein the slider (102) slides in cooperation with the optical axis (101).

7. A tooling fixture for machining parts according to claim 1, characterized in that: The first locking element is a first bolt (93), and the two ends of the base (92) are fastened to the upper and lower surfaces of the frame (6) by the first bolt (93) and the nut. The second locking element is a second bolt (94).

8. A tooling fixture for machining parts according to claim 1, characterized in that: The mounting hole (2) is a strip-shaped hole.

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