Tool clamp for clamping special-shaped workpiece
By designing a clamping assembly that includes a drive motor and multiple clamping plates, the problem of existing fixtures being unable to clamp irregularly shaped workpieces has been solved, achieving stable clamping and convenient assembly and disassembly, thereby improving processing efficiency and fixture life.
Patent Information
- Application Number
- CN202520258085.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing tooling fixtures can only fix workpieces of specific sizes, making it difficult to effectively clamp irregularly shaped workpieces with complex shapes or high precision requirements. This leads to displacement and vibration during processing, resulting in surface defects and affecting processing quality and efficiency.
A clamping assembly comprising a drive motor, a rotating disk, a positioning shaft, a guide plate, and a multi-layer clamping plate is designed. The motor drives the positioning shaft to move the guide plate and the slider, and the limiting blocks of the multi-layer clamping plate help to achieve stable clamping of irregularly shaped workpieces. The assembly is also easy to disassemble and maintain via a threaded knob.
It achieves stable clamping of irregularly shaped workpieces, improves processing efficiency, reduces positional offset and vibration, extends the service life of the fixture, and simplifies the maintenance process.
Smart Images

Figure CN223656871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a tooling and fixture for clamping irregularly shaped workpieces. Background Technology
[0002] Tooling fixtures are an indispensable part of machining, accurately fixing the position of parts during machining, reducing the labor intensity of workers, and improving labor efficiency. Currently, common fixtures have relatively single uses; one type of fixture is used to fix workpieces of one shape, or one type of fixture is used to fix workpieces of multiple regular shapes.
[0003] Existing tooling fixtures have some problems in use. They can only hold workpieces of fixed size. For some parts with complex shapes or high precision requirements, if irregular fixtures are not used, dimensional deviations may occur due to workpiece displacement or vibration during processing, which not only wastes time but also increases costs. Without the effective fixation of irregular fixtures, workpieces are prone to vibration and shaking during processing, which can lead to defects such as chatter marks and scratches on the workpiece surface, affecting the use of the workpiece. To address the above problems, an improved and upgraded tooling fixture for holding irregular workpieces is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a tooling fixture for clamping irregularly shaped workpieces, so as to solve the problems mentioned in the background art.
[0005] To solve the above problems, the following technical solutions are provided:
[0006] Design a tooling fixture for clamping irregularly shaped workpieces, including a tooling box, a machine platform is provided on the upper surface of the tooling box and a workpiece conveying platform is provided on the upper surface of the machine platform, two mounting frames are fixedly provided in the middle of the machine platform and a clamping component is provided on one side of the mounting frame, a disassembly component is provided above the clamping component, and a measuring plate is fixedly provided inside the tooling box above the mounting frame.
[0007] Furthermore, the clamping assembly includes a drive motor, a rotating disk, and positioning shafts. The drive motor is fixedly installed inside the machine tool, and the output end of the drive motor is fixedly connected to the rotating disk. Two positioning shafts are symmetrically arranged on the upper surface of the rotating disk.
[0008] Furthermore, guide plates are rotatably mounted on the outer walls of both positioning shafts, and the other ends of the guide plates are rotatably connected to the positioning rods. The two positioning rods are respectively fixedly mounted on the two sliders. Slide grooves are opened inside the two mounting brackets, and the sliders are slidably connected to the slide grooves. Positioning plates are fixedly mounted on the upper ends of the two sliders.
[0009] Furthermore, each of the two positioning plates has an installation frame on its outer wall, and a first clamping plate is rotatably installed inside each of the two installation frames. A first limiting block is provided on the outer wall of the first clamping plate. Two second clamping plates are rotatably installed inside the first clamping plate, and a second limiting block is provided on the outer wall of the second clamping plate. Two third clamping plates are rotatably installed inside each of the two second clamping plates, and a third limiting block is provided on the outer wall of each of the two sets of third clamping plates.
[0010] Furthermore, the disassembly assembly includes a fixing frame, a guide block, and a threaded knob. There are two sets of fixing frames, and each set of fixing frames has a guide groove inside. The guide block is slidably disposed inside the guide groove, and an installation frame is fixedly disposed on the outer wall of the guide block.
[0011] Furthermore, both sets of fixing frames are provided with sleeves on their outer walls, and the threaded knob is fixedly connected to a threaded rod. The outer wall of the threaded rod is threadedly connected to the inside of the sleeve, and its extended end is connected to the guide block.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model device includes a drive motor, a rotating disc, a guide plate, a slider, a positioning plate, a mounting frame, a first clamping plate, and a second clamping plate. By turning on the drive motor, two positioning shafts on the rotating disc rotate, causing them to simultaneously move the sliders on the two guide plates along the grooves within the mounting frame. Third limiting blocks on two sets of third clamping plates rotate on two second clamping plates, which in turn rotate within the first clamping plate using the second limiting blocks. Finally, the first clamping plate rotates within the mounting frame using the first limiting blocks. This facilitates the clamping and fixing of irregularly shaped workpieces of different sizes, improves the stability of workpiece clamping, increases workpiece processing efficiency, saves time and effort, and has a simple structure.
[0014] 2. This utility model device is equipped with components such as a fixed frame, threaded knobs, threaded rods, and guide blocks. By rotating the two threaded knobs, the threaded rod is driven to rotate within the fixed frame, causing one end of the threaded rod to be displaced from the guide block. Then, the mounting frame on the guide block slides out from the guide groove within the fixed frame. This facilitates the quick disassembly and assembly of irregularly shaped clamps for maintenance, improves the service life of the clamps, and is easy to operate.
[0015] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of a tooling fixture for clamping irregularly shaped workpieces according to the present invention;
[0018] Figure 2 This is a schematic diagram of a partial planing structure of a tooling fixture for clamping irregularly shaped workpieces according to the present invention;
[0019] Figure 3 for Figure 2 A magnified schematic diagram of the local structure;
[0020] Figure 4 for Figure 3 Schematic diagram of the partial split structure;
[0021] Figure 5 for Figure 4 A magnified diagram of the partially disassembled structure.
[0022] In the diagram: 1. Tooling box; 2. Machine base; 3. Measuring plate; 4. Workpiece conveyor; 5. Mounting frame; 6. Clamping assembly; 61. Drive motor; 62. Rotating disc; 63. Positioning shaft; 64. Guide plate; 65. Slide groove; 66. Slider; 67. Positioning rod; 68. Positioning plate; 69. Mounting frame; 691. First clamping plate; 692. First limiting block; 693. Second clamping plate; 694. Second limiting block; 695. Third clamping plate; 696. Third limiting block; 7. Disassembly assembly; 71. Fixing frame; 72. Guide block; 73. Threaded knob; 74. Threaded rod; 75. Guide groove; 76. Sleeve. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figure 1 - Figure 5 As shown in the figure, this embodiment provides a tooling fixture for clamping irregularly shaped workpieces, including a tooling box 1, a machine platform 2 is provided on the upper surface of the tooling box 1 and a workpiece conveying platform 4 is provided on the upper surface of the machine platform 2, two mounting frames 5 are fixedly provided in the middle of the machine platform 2 and a clamping component 6 is provided on one side of the mounting frame 5, a disassembly component 7 is provided above the clamping component 6, and a measuring plate 3 is fixedly provided inside the tooling box 1 above the mounting frame 5.
[0025] Preferably, the clamping assembly 6 includes a drive motor 61, a rotating disk 62, and positioning shafts 63. The drive motor 61 is fixedly installed inside the machine base 2, and the output end of the drive motor 61 is fixedly connected to the rotating disk 62. Two positioning shafts 63 are symmetrically arranged on the upper surface of the rotating disk 62. Guide plates 64 are rotatably installed on the outer walls of the two positioning shafts 63, and the other ends of the guide plates 64 are rotatably connected to positioning rods 67. The two positioning rods 67 are respectively fixedly arranged on two sliders 66. The two mounting brackets 5 are each provided with a sliding groove 65, and the sliders 66 are slidably connected to the sliding grooves 65. Both sliders 66 are fixedly provided with positioning plates 68 at their upper ends. Both positioning plates 68 are provided with mounting frames 69 on their outer walls. Both mounting frames 69 are rotatably installed with first clamping plates 691 inside. The outer wall of the first clamping plates 691 is provided with first limiting blocks 692. Two second clamping plates 693 are rotatably installed inside the first clamping plates 691, and the outer wall of the second clamping plates 693 is provided with second limiting blocks 694. Both second clamping plates 693 are rotatably installed with two third clamping plates 695 inside. The outer wall of both sets of third clamping plates 695 is provided with third limiting blocks 696.
[0026] By turning on the drive motor 61, the two positioning shafts 63 on the rotating disk 62 are rotated, causing the two positioning shafts 63 to simultaneously drive the sliders 66 on the two guide plates 64 to move and engage in the sliding grooves 65 opened in the mounting frame 5. This causes the mounting frames 69 on the two positioning plates 68 to move relative to each other. The third limiting blocks 696 on the two sets of third clamping plates 695 rotate and engage in the two second clamping plates 693. Then, the two second clamping plates 693 rotate and engage in the first clamping plate 691 using the second limiting blocks 694. Finally, the first clamping plate 691 rotates and engages in the mounting frame 69 using the first limiting blocks 692. The rotation and engagement of several clamping plates can clamp and fix irregularly shaped workpieces of different sizes.
[0027] Preferably, the disassembly assembly 7 includes a fixing bracket 71, a guide block 72, and a threaded knob 73. There are two sets of fixing brackets 71, and each set of fixing brackets 71 has a guide groove 75 inside. The guide block 72 is slidably disposed inside the guide groove 75. The outer wall of the guide block 72 is fixedly provided with an installation frame 69. The outer wall of each set of fixing brackets 71 is provided with a sleeve 76. The threaded knob 73 is fixedly connected to a threaded rod 74. The outer wall of the threaded rod 74 is threadedly connected to the inside of the sleeve 76, and its extension end is connected to the guide block 72.
[0028] By rotating the two threaded knobs 73, the threaded rod 74 is driven to rotate within the fixed frame 71, causing one end of the threaded rod 74 to be displaced from the guide block 72. Then, the mounting frame 69 on the guide block 72 slides out from the guide groove 75 within the fixed frame 71, facilitating quick disassembly and assembly of the irregularly shaped fixture for maintenance.
[0029] The working principle and process of this utility model are as follows: First, the operator places workpieces of different shapes and sizes on the workpiece conveyor table 4. When the workpiece is conveyed to the middle, the external power is turned on, and the drive motor 61 drives the two positioning shafts 63 on the rotating disk 62 to rotate. The two positioning shafts 63 simultaneously drive the sliders 66 on the two guide plates 64 to move and cooperate on the sliding grooves 65 opened in the mounting frame 5, thereby driving the mounting frames 69 on the two positioning plates 68 to move relative to each other. When clamping workpieces of different sizes, the third limiting blocks 696 on the two sets of third clamping plates 695 rotate and cooperate on the two second clamping plates 693. Then, the two second clamping plates 693 utilize... The second limiting block 694 rotates within the first clamping plate 691, and finally the first clamping plate 691 rotates within the mounting frame 69 using the first limiting block 692. The rotation of several clamping plates works together to clamp and fix irregularly shaped workpieces of different sizes, preventing positional displacement from affecting processing. However, prolonged use of the fixture can lead to wear and jamming. By rotating the two threaded knobs 73, the operator can rotate the threaded rod 74 within the fixed frame 71, causing one end of the threaded rod 74 to be displaced from the guide block 72. Then, the mounting frame 69 on the guide block 72 slides out from the guide groove 75 within the fixed frame 71, facilitating quick disassembly and assembly of the irregularly shaped fixture for maintenance and extending its service life.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
Claims
1. A tooling fixture for clamping irregularly shaped workpieces, characterized in that, The tooling box (1) includes a machine platform (2) on the upper surface of the tooling box (1) and a workpiece conveying platform (4) on the upper surface of the machine platform (2). Two mounting brackets (5) are fixedly installed in the middle of the machine platform (2) and a clamping assembly (6) is installed on one side of the mounting bracket (5). A disassembly assembly (7) is installed above the clamping assembly (6). A measuring plate (3) is fixedly installed inside the tooling box (1) above the mounting brackets (5).
2. A tooling fixture for clamping irregularly shaped workpieces according to claim 1, characterized in that, The clamping assembly (6) includes a drive motor (61), a rotating disk (62) and a positioning shaft (63). The drive motor (61) is fixedly installed inside the machine base (2) and the output end of the drive motor (61) is fixedly connected to the rotating disk (62). Two positioning shafts (63) are symmetrically arranged on the upper surface of the rotating disk (62).
3. A tooling fixture for clamping irregularly shaped workpieces according to claim 2, characterized in that, Guide plates (64) are rotatably mounted on the outer walls of both positioning shafts (63), and the other end of each guide plate (64) is rotatably connected to a positioning rod (67). The two positioning rods (67) are respectively fixedly mounted on two sliders (66). The two mounting brackets (5) are provided with sliding grooves (65), and the sliders (66) are slidably connected to the sliding grooves (65). A positioning plate (68) is fixedly mounted on the upper end of each slider (66).
4. A tooling fixture for clamping irregularly shaped workpieces according to claim 3, characterized in that, Both positioning plates (68) are provided with mounting frames (69) on their outer walls. Both mounting frames (69) are rotatably mounted with first clamping plates (691). The outer wall of the first clamping plates (691) is provided with a first limiting block (692). Two second clamping plates (693) are rotatably mounted inside the first clamping plates (691), and the outer wall of the second clamping plates (693) is provided with a second limiting block (694). Two third clamping plates (695) are rotatably mounted inside the two second clamping plates (693), and the outer walls of the two sets of third clamping plates (695) are provided with a third limiting block (696).
5. A tooling fixture for clamping irregularly shaped workpieces according to claim 1, characterized in that, The disassembly assembly (7) includes a fixing bracket (71), a guide block (72), and a threaded knob (73). There are two sets of fixing brackets (71), and each set of fixing brackets (71) has a guide groove (75) inside. The guide block (72) is slidably disposed inside the guide groove (75), and an installation frame (69) is fixedly disposed on the outer wall of the guide block (72).
6. A tooling fixture for clamping irregularly shaped workpieces according to claim 5, characterized in that, Both sets of fixing brackets (71) are provided with sleeves (76) on their outer walls. The threaded knob (73) is fixedly connected to a threaded rod (74). The outer wall of the threaded rod (74) is threadedly connected to the inside of the sleeve (76) and its extended end is connected to the guide block (72).