Quick clamping multifunction machine tool fixture

Abstract

The utility model discloses a multifunctional machine tool clamp of quick clamping relates to machine tool clamp field, the utility model discloses a clamp main part is provided with the moving block in the upper portion of clamp main part, the lower portion of moving block is provided with the engagement mechanism, the engagement mechanism includes the installation slot, the inside of installation slot is provided with the clamping block, one side of clamping block is provided with two springs, the other side of two spring is fixed in the one side of installation slot, the inside through -going of moving block is provided with two pull rod, the utility model discloses the modularization installation block realizes quick replacement function, and the processing efficiency of multi -variety workpiece is improved significantly, and the operator only needs to replace the installation block and does not need to dismantle the clamp as a whole, saves the downtime and simplifies the operation procedure, and the spring drive clamping block of engagement mechanism automatic locking positioning pin and card slot, ensure installation accuracy and reliability, and different material installation block covers the full -scene demand such as smooth piece, soft piece, shaft piece and tubular piece.

Description

Technical Field

[0001] This utility model relates to the field of machine tool fixtures, specifically a multi-functional machine tool fixture for quick clamping. Background Technology

[0002] A vise is a clamping tool that generates strong clamping force through a mechanical structure. Its core function is to firmly clamp a workpiece using two parallel jaws with teeth, ensuring its absolute stability during machining, assembly, or maintenance. It mainly consists of a cast iron body, fixed jaws, movable jaws, a trapezoidal threaded screw, and a handle. Turning the handle drives the screw, which in turn moves the movable jaws parallel to each other, thus clamping or releasing the workpiece. Common types include bench vises that need to be fixed to a workbench, and high-precision machine vises. Essentially, a vise is a core piece of equipment that provides operators with a stable, safe, and efficient manual work standard.

[0003] Existing machine tool fixtures move by rotating a threaded rod to move a moving block to process the blank to be processed. However, when dealing with blanks of different materials and shapes, the fixture needs to be changed according to the blank. Since the process of changing the fixture is cumbersome, it reduces work efficiency. Therefore, the inventor urgently needs to design a device that can quickly change fixtures to improve work efficiency. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide a multi-functional machine tool fixture for quick clamping, so as to solve the technical problem of low efficiency in changing fixtures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional machine tool fixture for quick clamping, comprising a fixture body, a movable block disposed above the fixture body, and a locking mechanism disposed below the movable block, the locking mechanism comprising a mounting groove, a locking block disposed inside the mounting groove, two springs disposed on one side of the locking block, the other side of the two springs being fixed to one side of the mounting groove, two pull rods being disposed through the interior of the movable block, one end of the two pull rods being fixedly connected to one side of the locking block, both pull rods being through the middle of the springs, and mounting blocks of different materials disposed on the front side of the movable block.

[0006] By adopting the above technical solution, the combination of the mounting slot and the locking mechanism allows operators to easily and quickly replace different mounting blocks, thereby directly improving the efficiency of fixture switching. Since existing fixtures require disassembling the entire machine to replace the chuck, this structure, through the modular design of the mounting slot, allows for flexible adjustment of fixture types without interrupting machine operation, greatly shortening equipment downtime, simplifying the operation process, and adapting to the needs of multi-variety, small-batch production in the workshop.

[0007] Furthermore, a threaded rod is provided on one side of the movable block, and one end of the threaded rod is connected to a drive mechanism.

[0008] By adopting the above technical solution, a design that connects the threaded rod to the drive mechanism is introduced to achieve smooth movement control of the moving block. This effectively solves the pain point of traditional manual clamps requiring a lot of effort, making the clamping process more user-friendly and efficient. Operators no longer need to directly apply force to push the clamp, but instead operate indirectly through the drive mechanism, reducing labor intensity and ensuring the continuous stability of the clamping force, thus avoiding errors or dangers caused by personnel fatigue.

[0009] Furthermore, each mounting block has two positioning pins at its bottom and a slot on one side, and the mounting block is engaged with the slot.

[0010] By adopting the above technical solution, the cooperation mechanism of the positioning pin and the slot provides a precise and reliable positioning basis for quick replacement of the mounting block, which significantly simplifies the alignment steps for operators when changing the mounting block. Traditional fixtures require repeated testing and fine-tuning, while this design allows the mounting block to be in place instantly, eliminating the risk of positional deviation and improving work efficiency. At the same time, it ensures the repeatability of the fixture's positioning accuracy when switching between different workpieces, ensuring consistent processing quality.

[0011] Furthermore, a side plate is provided on one side of the mounting groove, and a positioning hole is provided on the upper part of the side plate, with the positioning pin engaging inside the positioning hole.

[0012] By adopting the above technical solution, a side plate and positioning hole are added to one side of the mounting slot, which enhances the position fixing ability of the mounting block and helps the operator to quickly and accurately insert the mounting block. This avoids the debugging delays that are common during the changeover process, which significantly improves workflow efficiency. The operator can achieve the clamping and engagement with simple actions, while reducing the accumulation of errors. Especially in multi-workpiece production lines where fixtures are frequently changed, it saves accumulated operation time.

[0013] Furthermore, a connecting block is fixedly provided at one end of each of the two pull rods, and a pull ring is provided on one side of the connecting block. Pulling the pull ring changes the position of the locking block.

[0014] By adopting the above technical solution, a connecting block and a pull ring are set at the end of the pull rod, creating an intuitive and convenient operating interface. This allows the operator to complete the block control with one hand, greatly improving the replacement efficiency. Compared with the traditional method of disassembling bolts or using tools, pulling the pull ring can release or lock the installation block, simplifying the action chain, reducing the complexity of operation, adapting to the fast-paced production environment, and reducing the waste of changeover time.

[0015] Furthermore, the mounting block includes a first mounting block, one side surface of which is provided with a plurality of herringbone patterns and raised dots.

[0016] By adopting the above technical solution, the surface of the first mounting block is designed with herringbone and raised textures, which directly provides efficient friction enhancement for smooth workpieces, solves the slippage problem of traditional clamps, and improves clamping stability. Since smooth metal or plastic workpieces are prone to displacement during processing, these textures increase the roughness of the contact surface, ensuring the workpiece is stable, while reducing the use of additional clamping devices, saving operation time and improving work efficiency.

[0017] Furthermore, the mounting block also includes a second mounting block, one side of which is provided with a rubber pad.

[0018] By adopting the above technical solution, the second mounting block is equipped with a rubber pad, providing a gentle and reliable protective layer for soft or precision workpieces, effectively preventing surface damage or deformation during clamping. Since aluminum alloy or plastic workpieces are easily scratched by metal clamps, the pad absorbs localized pressure, ensuring uniform transmission of clamping force, while improving processing yield and efficiency, and avoiding rework waste.

[0019] Furthermore, the mounting block also includes a third mounting block, one side of which is provided with a V-groove and a concave groove.

[0020] By adopting the above technical solution, the third mounting block is designed with V-grooves and concave grooves to provide a special clamping solution for irregular or shaft-type workpieces, simplifying the fixing process of complex shapes and significantly improving operating efficiency. Shaft-type workpieces require additional tools for positioning in traditional fixtures. The V-grooves automatically center and stabilize the workpiece, ensuring accurate processing position and reducing the time spent on repeated adjustments.

[0021] Furthermore, the mounting block also includes a fourth mounting block, one side of which is provided with an arc-shaped groove.

[0022] By adopting the above technical solution, the arc-shaped groove structure of the fourth mounting block provides customized clamping for tubular or curved workpieces. The curved surface matching achieves a more uniform force distribution, avoids stress concentration caused by point contact of traditional clamps, and improves stability and efficiency. Pipe workpieces are prone to vibration or displacement due to unsuitable clamps during processing. The arc-shaped groove fits the curved surface to ensure reliable fixation, while reducing replacement and debugging steps and saving time and resources.

[0023] In summary, the present invention has the following main advantages: This utility model achieves quick replacement through modular mounting blocks, significantly improving the processing efficiency of various workpieces. Operators only need to replace the mounting blocks without disassembling the entire fixture, saving downtime and simplifying the operation process. The spring-driven locking mechanism automatically locks the positioning pin and slot, ensuring installation accuracy and reliability. Mounting blocks of different materials cover all scenarios such as smooth parts, soft parts, shaft parts and tubular parts. This invention specifically enhances workpiece protection by utilizing the surface characteristics of the mounting block: herringbone patterns increase friction to prevent slippage on smooth parts; rubber pads disperse pressure to prevent deformation of soft parts; V-grooves and arc grooves fit the contours of irregularly shaped parts to eliminate stress concentration; the pull ring design optimizes the manual operation path, allowing the locking mechanism to be released with a single pull, reducing labor intensity; and the threaded rod integrated drive mechanism provides stable driving force, ensuring a smooth and controllable clamping process. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a cross-sectional view of the fixture of this utility model; Figure 4 This is a three-dimensional structural diagram of the clamp of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram at point A; In the diagram: 1. Fixture body; 2. Threaded rod; 3. Moving block; 4. Engaging mechanism; 401. Mounting groove; 402. Locking block; 403. Spring; 404. Side plate; 405. Positioning hole; 406. Pull rod; 407. Connecting block; 408. Pull ring; 5. First mounting block; 501. Herringbone pattern; 502. Protrusion; 6. Second mounting block; 601. Rubber pad; 7. Third mounting block; 701. V-groove; 702. Concave groove; 8. Fourth mounting block; 801. Arc groove; 9. Positioning pin; 10. Locking groove. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In this embodiment: a multi-functional machine tool fixture for quick clamping, such as... Figure 1-5As shown, the fixture includes a main body 1, a movable block 3 on top of the main body 1, and a locking mechanism 4 below the movable block 3. The locking mechanism 4 includes a mounting groove 401, a locking block 402 inside the mounting groove 401, two springs 403 on one side of the locking block 402, and the other side of the two springs 403 fixed to one side of the mounting groove 401. Two pull rods 406 are arranged through the movable block 3, one end of the two pull rods 406 is fixedly connected to one side of the locking block 402, and both pull rods 406 pass through the middle of the springs 403. Mounting blocks of different materials are provided on the front side of the movable block 3. The combination of the mounting groove and the locking mechanism allows the operator to easily and quickly change different mounting blocks, thereby directly improving the efficiency of fixture switching. Since existing fixtures require disassembling the entire machine to change the chuck, this structure... The modular design of the mounting slots allows for flexible adjustment of the fixture type without interrupting machine tool operation, significantly reducing equipment downtime and simplifying the operation process. This adapts to the needs of multi-variety, small-batch production in the workshop. Furthermore, the synergy between the moving block and the locking mechanism provides a reliable basic framework, ensuring dynamic stability during processing. The locking block automatically resets under spring action, forming a self-locking mechanism to prevent workpiece loosening caused by processing vibrations, enhancing the overall safety and reliability of the fixture system. In addition, this design reduces operator skill requirements, allowing new employees to quickly master the system. It is also suitable for the modification or integration of various machine tool models, saving companies training time and costs. The internal tie rod layout of the moving block optimizes space utilization, and its integration with the fixture body reduces maintenance complexity and extends service life.

[0027] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A threaded rod 2 is provided on one side of the moving block 3, and one end of the threaded rod 2 is connected to the drive mechanism. The design of connecting the threaded rod to the drive mechanism enables smooth movement control of the moving block, effectively solving the pain point of traditional manual clamps that require a lot of effort. This makes the clamping process more user-friendly and efficient. Operators no longer need to directly apply force to push the clamp, but instead operate indirectly through the drive mechanism, reducing labor intensity. At the same time, it ensures the continuous stability of the clamping force and avoids errors or dangers caused by human fatigue. Meanwhile, the threaded rod structure provides precise displacement adjustment capability. Combined with the transmission logic of the drive mechanism, it supports fine adjustment of the workpiece position in delicate processes, which helps to improve machining accuracy and quality consistency. This feature also enhances the automation potential of the clamp, making it easy to integrate with external motors or CNC systems. Future upgrades to semi-automatic or fully automatic modes are faster, further accelerating the production pace. In addition, the layout of the threaded rod simplifies the complexity of the overall system, reduces the number of vulnerable parts, reduces the frequency of long-term maintenance, and saves spare parts costs for enterprises.

[0028] See Figure 1 , Figure 3 , Figure 5 Each mounting block has two locating pins 9 on its underside and a slot 10 on one side. The locking block 402 engages with the slot 10. The engagement mechanism of the locating pins and slots provides a precise and reliable positioning basis for quick replacement of the mounting blocks, significantly simplifying the alignment steps for operators during replacement. Traditional fixtures require repeated testing and fine-tuning, while this design allows the mounting block to be in place instantly, eliminating the risk of positional deviation and improving work efficiency. At the same time, it ensures the repeatability of the fixture's positioning accuracy when switching between different workpieces, guaranteeing consistent processing quality. Furthermore, the embedded combination of the locking block and the slot forms a strong mechanical lock, enhancing vibration and impact resistance. Especially in high-speed processing environments or when clamping heavy workpieces, it can prevent slippage or loosening, greatly improving production safety. In addition, this feature is cost-effective, requiring no complex electronic components and relying solely on mechanical structure for reliable fixation, reducing failure points and improving system robustness. Meanwhile, the optimized arrangement of the locating pins facilitates cleaning and maintenance, extending the overall lifespan of the fixture.

[0029] See Figure 1 , Figure 3 , Figure 5 A side plate 404 is provided on one side of the mounting slot 401, and a positioning hole 405 is provided above the side plate 404. The positioning pin 9 is engaged with the interior of the positioning hole 405. The addition of a side plate and positioning hole on one side of the mounting slot enhances the positional fixation capability of the mounting block, helping the operator to quickly and accurately insert the mounting block and avoid the debugging delays commonly encountered during the changeover process. This significantly improves workflow efficiency. The operator can achieve the locking and engagement with simple actions, while reducing the accumulation of errors. Especially in multi-workpiece production lines with frequent fixture changes, it saves accumulated operation time. At the same time, the collaborative design of the positioning hole and positioning pin provides redundant support, enhances system rigidity, prevents small displacements caused by processing forces or thermal expansion, ensures stable and reliable processing, and reduces the risk of workpiece damage. In addition, the side plate structure acts as an auxiliary barrier, reducing the entry of dust and debris into the mounting slot, simplifying cleaning and improving maintenance convenience. Meanwhile, this feature achieves high precision with low technical barriers, making it easy to retrofit old equipment and reducing enterprise investment costs.

[0030] See Figure 3 , Figure 4 , Figure 5A connecting block 407 is fixedly installed at one end of each of the two pull rods 406. A pull ring 408 is provided on one side of the connecting block 407. Pulling the pull ring 408 changes the position of the locking block 402. The connecting block and pull ring at the end of the pull rod create an intuitive and convenient operating interface, allowing the operator to control the locking block with one hand, greatly improving the replacement efficiency. Compared with the traditional method of disassembling bolts or using tools, pulling the pull ring can release or lock the mounting block, simplifying the action chain, reducing the complexity of operation, adapting to the fast-paced production environment, and reducing the waste of changeover time. At the same time, the integration of the connecting block optimizes the force transmission path, ensures that the spring action is evenly distributed, extends the service life of parts and prevents jamming problems, and enhances the overall reliability and safety factor of the fixture. In addition, the pull ring is designed with humanization in mind, reducing muscle strain and operation errors, and supports use in various working conditions, especially more user-friendly for novice operators. At the same time, this feature makes it easy to combine with other automation elements, such as pneumatic assistance, to further improve the versatility and adaptability of the fixture.

[0031] See Figure 1 , Figure 2 The mounting block includes a first mounting block 5. One side surface of the first mounting block 5 is provided with several herringbone patterns 501 and raised dots 502. The herringbone and raised dot textures on the surface of the first mounting block directly provide efficient friction enhancement for smooth workpieces, solving the slippage problem of traditional fixtures and improving clamping stability. Since smooth metal or plastic workpieces are prone to displacement during processing, these textures increase the roughness of the contact surface, ensuring the workpiece is stable, while reducing the use of additional clamping devices, saving operation time and improving work efficiency. At the same time, the geometric arrangement of the herringbone and raised dots optimizes the pressure distribution, protecting the workpiece surface from scratches or deformation, especially maintaining the integrity of the workpiece in high-intensity processing, and ensuring the quality of the final product. In addition, this design also improves the versatility of the fixture, adapting to the smooth surface treatment requirements of different materials such as aluminum alloys or composite materials, reducing the frequency of fixture replacement. Meanwhile, the textured structure helps heat dissipation and chip removal, maintaining a clean working environment and extending the fixture maintenance cycle.

[0032] See Figure 1 , Figure 2The mounting block also includes a second mounting block 6, one side of which is provided with a rubber pad 601. This rubber pad provides a gentle and reliable protective layer for soft or precision workpieces, effectively preventing surface damage or deformation during clamping. Since aluminum alloy or plastic workpieces are easily scratched by metal clamps, the pad absorbs localized pressure, ensuring uniform force transmission and improving machining yield and efficiency, avoiding rework waste. Simultaneously, the elastic properties of the rubber material provide cushioning, absorbing impact in high-speed cutting or vibration environments, stabilizing workpiece position, enhancing system safety, and ensuring machining accuracy. Furthermore, this design allows for quick switching between different soft workpieces without multiple adjustments, significantly reducing changeover time. The pad module can also be independently replaced or customized, expanding the applicability of the clamp, supporting various industrial applications, and reducing the need for additional equipment investment.

[0033] See Figure 1 , Figure 2 The mounting block also includes a third mounting block 7. One side of the third mounting block 7 is provided with a V-groove 701 and a concave groove 702. The design of the V-groove and concave groove of the third mounting block provides a special clamping solution for irregular or shaft-like workpieces, simplifies the fixing process of complex shapes, and significantly improves operating efficiency. Shaft-like workpieces require additional tools for positioning in traditional fixtures. The V-groove automatically centers and stabilizes the workpiece, ensuring accurate machining position and reducing the time spent on repeated adjustments. At the same time, the concave groove accommodates irregular geometric contours, optimizes force distribution to prevent workpiece deformation or slippage, enhances machining safety and ensures high-precision results, especially maintaining consistency in multi-angle processes. In addition, this modular design reduces the frequency of fixture replacement, adapts to the production needs of small batches of irregular parts, and the groove design also facilitates chip removal and cleaning, reduces maintenance costs and increases system life.

[0034] See Figure 1 , Figure 2 The mounting block also includes a fourth mounting block 8, one side of which is provided with an arc-shaped groove 801. The arc-shaped groove structure of the fourth mounting block provides customized clamping for tubular or curved workpieces. Through surface matching, it achieves a more uniform force distribution, avoids stress concentration caused by point contact of traditional fixtures, and improves stability and efficiency. Pipe workpieces are prone to vibration or displacement due to unsuitable fixtures during processing. The arc-shaped groove conforms to the curved surface to ensure reliable fixation, while reducing the number of replacement and debugging steps, saving time and resources. At the same time, this design ensures the integrity of the workpiece surface and prevents the fixture from scratching or deforming. It improves the quality of finished products, especially in the processing of stainless steel or copper pipes. In addition, the arc-shaped groove is suitable for pipes of various diameters, reducing the number of times special fixtures need to be replaced, enhancing versatility and practicality. At the same time, the structural optimization also supports the integrated operation of complex processes, simplifies the maintenance process, and extends the service life of the overall system.

[0035] The implementation principle of this embodiment is as follows: When it is necessary to clamp a blank, the corresponding mounting block is selected according to the material and shape of the blank. The herringbone pattern 501 and the protrusions 502 on the surface of the first mounting block 5 increase the friction during clamping and are suitable for clamping smooth workpieces. The rubber pad on the surface of the second mounting block 6 is suitable for clamping soft workpieces. The V-groove 701 and concave groove 702 of the third mounting block 7 and the arc groove 801 of the fourth mounting block 8 are suitable for clamping irregularly shaped workpieces. Before installing the mounting block, pull the pull ring 408 to drive the locking block 402 to move backward, install the selected mounting block inside the mounting groove 401, lock the positioning pin 9 inside the positioning hole 405, lock the locking block 402 in the middle of the locking groove 10 of the mounting block to fix the position of the mounting block, and drive the one side of the threaded rod 2 to make the moving block 3 move forward and perform clamping.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A multi-functional machine tool fixture for quick clamping, characterized in that: The fixture includes a main body (1), a movable block (3) is provided above the main body (1), and a locking mechanism (4) is provided below the movable block (3). The locking mechanism (4) includes a mounting groove (401), a locking block (402) is provided inside the mounting groove (401), two springs (403) are provided on one side of the locking block (402), and the other side of the two springs (403) is fixed to one side of the mounting groove (401). Two pull rods (406) are provided through the interior of the movable block (3), one end of the two pull rods (406) is fixedly connected to one side of the locking block (402), and both pull rods (406) are through the middle of the springs (403). Mounting blocks of different materials are provided on the front side of the movable block (3).

2. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: A threaded rod (2) is provided on one side of the moving block (3), and one end of the threaded rod (2) is connected to a driving mechanism.

3. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: Each mounting block has two positioning pins (9) at its bottom and a slot (10) on one side. The locking block (402) is locked into the slot (10).

4. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: A side plate (404) is provided on one side of the mounting groove (401), and a positioning hole (405) is provided on the upper part of the side plate (404). The positioning pin (9) is engaged with the interior of the positioning hole (405).

5. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: One end of each of the two pull rods (406) is fixedly provided with a connecting block (407), and a pull ring (408) is provided on one side of the connecting block (407). Pulling the pull ring (408) changes the position of the locking block (402).

6. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: The mounting block includes a first mounting block (5), and one side surface of the first mounting block (5) is provided with a plurality of herringbone patterns (501) and protrusions (502).

7. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: The mounting block also includes a second mounting block (6), on one side of which is provided a rubber pad (601).

8. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: The mounting block also includes a third mounting block (7), on one side of which a V-groove (701) and a concave groove (702) are provided.

9. The multi-functional machine tool fixture for quick clamping according to claim 1, characterized in that: The mounting block also includes a fourth mounting block (8), and an arc groove (801) is provided on one side of the fourth mounting block (8).

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