CNC (computer numerical control) machine tool shutdown-free clamp

Abstract

The utility model provides a CNC (computer numerical control) machine tool stop-free clamp, which relates to the technical field of numerical control machine tools and comprises a base disc, arc cutting parts fixed on the top of the base disc in a circumferential array manner, a pressing plate fixed on one side of each arc cutting part, a bottom sliding disc connected with the bottom of the pressing plate in a sliding manner, and limiting columns fixed on the top of the bottom sliding disc in a circumferential array manner. The problem that a CNC numerical control machine tool depends on a clamp to fix a machined part in the production process, machining precision and stability are ensured is solved by installing a round prying head, however, a traditional clamp system is often complex in design, and the function of rapidly releasing and fastening the workpiece is difficult to achieve, which means that after the CNC machine tool completes machining of one product, the machining precision and stability are guaranteed. In the prior art, an operator must shut down and manually replace a clamped workpiece, the process is time-consuming, the continuous operation efficiency of equipment is reduced, the efficiency of the whole production process is reduced due to the fact that a machine tool cannot carry out production operation when replacing products, and the throughput of machining tasks and the economic benefits of enterprises are further influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a stop-free clamp for CNC numerical control machine tools. Background Art

[0002] CNC machine tools are automated machine tools controlled by computer programs. They are widely used in many fields and have broad development prospects. CNC machine tools (Computer Numerical Control machine tools) refer to automated machine tools that are digitally controlled by computers and can logically process and decode program instructions. It controls the movement and processing of tools through digital programs to achieve high-precision and high-efficiency production. CNC technology represents the advanced level of modern machinery manufacturing industry and is a typical representative of mechatronics.

[0003] In the prior art, CNC machine tools rely on fixtures to fix workpieces during the production process to ensure processing accuracy and stability. However, traditional fixture systems are often complex in design and difficult to achieve the functions of quickly releasing and tightening workpieces. This means that after the CNC machine tool completes the processing of a product, the operator must stop the machine and manually replace the clamped workpiece. This process is not only time-consuming but also reduces the continuous operation efficiency of the equipment. Since the machine tool cannot perform production operations when changing products, the overall production process efficiency is reduced, which in turn affects the throughput of processing tasks and the economic benefits of the enterprise. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a CNC machine tool stop-free clamp.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a CNC machine tool non-stop fixture, including a base plate, an arc cutting piece is fixed to the top circular array of the base plate, a pressing plate is fixed to one side of the arc cutting piece, a bottom sliding plate is slidably connected to the bottom of the pressing plate, a limit column is fixed to the top circular array of the bottom sliding plate, a top plate ring is fixed to the top of the limit column, a moving rod is fixed to the circumferential surface of the top plate, an annular groove is opened on the surface of the top plate ring, a top short shaft is rotatably connected to the inner wall of the annular groove, and a circular pry is fixed to the bottom of the top short shaft. The round pry head is fixed with a bottom sliding column at the bottom, the bottom of the bottom sliding column is slidably connected to the top of the bottom sliding plate, a rotating pry is fixed to the circumference of the round pry head, a round head groove is opened on the top of the arc cutting piece, a sliding shaft is slidably connected to the inner wall of the round head groove, and the circumference of the sliding shaft is rotatably connected to the inner wall of the rotating pry. In the prior art, CNC machine tools rely on fixtures to fix workpieces during the production process to ensure machining accuracy and stability. However, traditional fixture systems are often complex in design and difficult to achieve the function of quickly releasing and tightening workpieces, which means that when a CNC machine tool completes a piece, it is difficult to quickly release and tighten the workpiece. After the product is processed, the operator must stop the machine and manually replace the clamped workpiece. This process is not only time-consuming but also reduces the continuous operation efficiency of the equipment. Since the machine tool cannot perform production operations when changing products, the overall production process efficiency is reduced, which in turn affects the throughput of processing tasks and the economic benefits of the enterprise. In response to such problems, the utility model solves the problem by installing a round pry head. When the product processing is completed, the staff controls the movable rod to rotate counterclockwise, so that the top sheet ring and the bottom slide plate also rotate counterclockwise. The cooperation between the annular groove and the top short shaft causes the round pry head to rotate discretely counterclockwise to release the pressing of the product. At the same time, the slide shaft moves away from the center along the round head groove, so that the fixture quickly releases the product. When the product is put in, the staff controls the movable rod to rotate clockwise, so that the round pry head quickly gathers toward the center, thereby clamping the product. The mechanism applies force to the center from multiple directions at the same time, so that the mechanism can tightly clamp circular, triangular, hexagonal and other shapes, greatly increasing the scope of application of the mechanism, so that the mechanism can achieve the effect of no need to stop through convenient and fast release and clamping, thereby improving work efficiency.

[0006] Preferably, a crescent gear is fixed to one end of the movable rod, a driven gear is meshed with the tooth groove of the crescent gear, a low shaft is rotatably connected to the bottom of the driven gear, a threaded rod is meshed with the tooth groove of the driven gear, one end of the threaded rod is rotatably connected to a bearing seat, and a driving motor is arranged at the other end of the threaded rod. In the prior art, it is troublesome to use a motor to drive the arc-shaped moving path of the movable rod, and the loosening of the clamp can easily cause the motor to reverse. When the clamp mechanism completes the clamping of the product under the drive of the motor, as the machine tool starts to perform processing operations such as high-speed cutting or milling, the fastening strength of the clamp may gradually weaken due to the influence of factors such as vibration, centrifugal force and thermal expansion generated during the processing, especially during long-term continuous loading. Under working or extreme working conditions, this weakening is more obvious, and the fixture cannot always maintain its original tight state, increasing the risk of workpiece displacement or even falling off, which will not only cause the product to be scrapped, damage the machine tool, and cause production interruptions, but also may pose a threat to the safety of the operator. In response to such problems, the utility model solves them by installing threaded rods, so that when the moving rod needs to be rotated, the staff starts the drive motor to rotate the threaded rod to engage the driven gear. When the fixture is tightened, the threaded rod and the driven gear have a self-locking effect, forming a tight mechanical interlock, which can prevent the driven gear from reversing and effectively prevent the fixture from loosening, thereby achieving the effect of increasing the service life of the equipment and increasing the yield rate.

[0007] Preferably, the linear array on the top of the bottom slide plate is provided with anti-skid grooves. In the prior art, the bottom of the bottom slide column is slidably connected to the top of the bottom slide plate. Once the friction between the contact surfaces is low, it is easy to cause the driven gear to have a tendency to reverse, causing the threaded rod to be subjected to pressure wear, resulting in a reduction in the service life of the equipment. To solve this type of problem, the utility model adopts the method of providing anti-skid grooves to solve it, thereby achieving the effect of increasing the friction between the bottom of the bottom slide column and the top of the bottom slide plate through the anti-skid grooves, preventing the equipment from slipping, and achieving the effect of increasing the service life of the equipment.

[0008] Preferably, a hollow groove is provided on the surface of the bottom slide plate to reduce the deadweight of the component and reduce production costs.

[0009] Preferably, the circumferential surface of the round pry head is provided with an engagement groove, which can better restrict the product and improve the clamping and stabilizing effect.

[0010] Preferably, a reducer is provided at one end of the driving motor to reduce the output speed, increase the output torque, and save production costs.

[0011] Preferably, both ends of the inner wall of the engagement groove are rounded to prevent scratches on the product surface and improve the yield.

[0012] Beneficial Effects

[0013] 1. In the prior art, CNC machine tools rely on fixtures to fix workpieces during the production process to ensure processing accuracy and stability. However, traditional fixture systems are often complex in design and difficult to achieve the function of quickly releasing and tightening workpieces. This means that after the CNC machine tool completes the processing of a product, the operator must stop the machine and manually replace the clamped workpiece. This process is not only time-consuming but also reduces the continuous operation efficiency of the equipment. Since the machine tool cannot perform production operations when changing products, the overall production process efficiency is reduced, which in turn affects the throughput of processing tasks and the economic benefits of the enterprise. In response to such problems, the utility model adopts the method of installing a round pry head to solve the problem, which realizes that when the product is When the processing is completed, the staff controls the movable rod to rotate counterclockwise, so that the top plate ring and the bottom slide plate also rotate counterclockwise, and the cooperation between the annular groove and the top short shaft makes the round pry head rotate counterclockwise and discretely, loosening the pressure on the product. At the same time, the sliding shaft moves along the round head groove away from the center, so that the clamp quickly releases the product. When the product is put in, the staff controls the movable rod to rotate clockwise, so that the round pry head quickly gathers toward the center, thereby clamping the product. The mechanism applies force to the center from multiple directions at the same time, so that the mechanism can tightly clamp circular, triangular, hexagonal and other shapes, greatly increasing the scope of application of the mechanism, so that the mechanism can achieve the effect of no need to stop through convenient and fast release and clamping, thereby achieving the effect of improving work efficiency.

[0014] 2. In the prior art, it is troublesome to use a motor to drive the arc-shaped moving path of the movable rod, and the loosening of the clamp can easily cause the motor to reverse. When the clamp mechanism completes the clamping of the product under the drive of the motor, as the machine tool starts to perform processing operations such as high-speed cutting or milling, the clamp's tightening force may gradually weaken due to the influence of factors such as vibration, centrifugal force and thermal expansion generated during the processing. Especially under long-term continuous processing or extreme working conditions, this weakening is more obvious, and the clamp cannot always maintain its original tight state, increasing the risk of workpiece displacement or even falling off, which will not only cause the product to be scrapped, damage the machine tool, and cause production interruption, but also may pose a threat to the safety of the operator. In response to such problems, the utility model solves this problem by installing a threaded rod, so that when the movable rod needs to be rotated, the staff starts the drive motor to rotate the threaded rod to engage the driven gear. When the clamp is tightened, the threaded rod and the driven gear have a self-locking effect, forming a tight mechanical interlock, which can prevent the driven gear from reversing, effectively preventing the clamp from loosening, and achieving the effect of improving the service life of the equipment and increasing the yield rate.

[0015] 3. In the prior art, the bottom of the bottom slide column is slidably connected to the top of the bottom slide plate. Once the friction between the contact surfaces is low, it is easy to cause the driven gear to have a tendency to reverse, causing the threaded rod to be subjected to pressure wear, resulting in a reduction in the service life of the equipment. To address this type of problem, the utility model solves it by providing anti-slip grooves, thereby achieving the effect of increasing the friction between the bottom of the bottom slide column and the top of the bottom slide plate through the anti-slip grooves, preventing the equipment from slipping, and achieving the effect of increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the round pry head of the utility model;

[0018] Figure 3 This is an exploded view of the top and bottom shaft of the utility model;

[0019] Figure 4 It is an exploded view of the sliding shaft of the utility model.

[0020] Legend:

[0021] 1. Base plate; 101. Arc-cut piece; 102. Press plate; 103. Round head groove; 104. Turntable; 105. Sliding shaft; 106. Round pry head; 107. Top low shaft; 108. Bottom sliding column; 109. Top plate ring; 1010. Annular groove; 1011. Moving rod; 1012. Limit column; 1013. Bottom sliding plate; 2. Crescent gear; 201. Driven gear; 202. Low shaft; 203. Threaded rod; 204. Bearing seat; 205. Driving motor; 206. Reducer; 3. Anti-slip pattern; 301. Hollow center groove; 302. Engagement groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment:

[0025] Reference Figure 1-4A CNC machine tool non-stop fixture comprises a base plate 1, an arc cutting piece 101 is fixed to the top of the base plate 1 in a circular array, a pressing plate 102 is fixed to one side of the arc cutting piece 101, a bottom sliding plate 1013 is slidably connected to the bottom of the pressing plate 102, a limit column 1012 is fixed to the top of the bottom sliding plate 1013 in a circular array, a top sheet ring 109 is fixed to the top of the limit column 1012, a moving rod 1011 is fixed to the circumferential surface of the top sheet ring 109, an annular groove 1010 is opened in a circular array on the surface of the top sheet ring 109, a top short shaft 107 is rotatably connected to the inner wall of the annular groove 1010, and a circular groove 1010 is fixed to the bottom of the top short shaft 107. The pry head 106 is provided with a bottom slide column 108 fixed at the bottom of the round pry head 106, and the bottom of the bottom slide column 108 is slidably connected to the top of the bottom slide plate 1013, and a rotating pry 104 is fixed to the circumference of the round pry head 106. A round head groove 103 is provided at the top of the arc cutting piece 101, and a sliding shaft 105 is slidably connected to the inner wall of the round head groove 103, and the circumference of the sliding shaft 105 is rotatably connected to the inner wall of the rotating pry 104. CNC machine tools rely on fixtures to fix workpieces during production to ensure processing accuracy and stability. However, traditional fixture systems are often complex in design and difficult to achieve the function of quickly releasing and tightening workpieces. This means that in CNC machine tools, the design of the fixture is very complex, and it is difficult to achieve the function of quickly releasing and tightening workpieces. After the C machine tool completes the processing of a product, the operator must stop the machine and manually replace the clamped workpiece. This process is not only time-consuming but also reduces the continuous operation efficiency of the equipment. Since the machine tool cannot perform production operations when changing products, the overall production process efficiency is reduced, which in turn affects the throughput of processing tasks and the economic benefits of the enterprise. The problem is solved by installing a round pry head 106. When the product processing is completed, the staff controls the movable rod 1011 to rotate counterclockwise, so that the top plate ring 109 and the bottom slide plate 1013 also rotate counterclockwise. The cooperation between the annular groove 1010 and the top short shaft 107 makes The round pry head 106 rotates counterclockwise to release the pressure on the product, and at the same time the sliding shaft 105 moves along the round head groove 103 away from the center, so that the clamp quickly releases the product. When the product is put in, the staff controls the movable rod 1011 to rotate clockwise, so that the round pry head 106 quickly gathers toward the center, thereby clamping the product. The mechanism applies force to the center from multiple directions at the same time, so that the mechanism can tightly clamp circular, triangular, hexagonal and other shapes, greatly increasing the scope of application of the mechanism, so that the mechanism can achieve the effect of no need to stop through convenient and fast release and clamping, thereby achieving the effect of improving work efficiency. The top linear array of the bottom slide plate 1013 is provided with anti-skid grooves 3. The bottom of the bottom slide column 108 is slidably connected to the top of the bottom slide plate 1013. Once the friction between the contact surfaces is low, it is easy to cause the driven gear 201 to have a tendency to reverse, causing the threaded rod 203 to be subjected to pressure wear, resulting in a reduction in the service life of the equipment. The anti-skid grooves 3 are used to solve this problem. The anti-skid grooves 3 are used to increase the friction between the bottom of the bottom slide column 108 and the top of the bottom slide plate 1013, prevent the equipment from slipping, and achieve the effect of increasing the service life of the equipment. The bottom slide plate 1013 surface is provided with a hollow groove 301 to reduce the weight of the component and reduce production costs.The circumference of the round pry head 106 is provided with a bite groove 302, which better restricts the product and improves the clamping and stabilizing effect. The edges of both ends of the inner wall of the bite groove 302 are set as rounded corners to prevent scratching the product surface and improve the yield rate.

[0026] A crescent gear 2 is fixed to one end of the movable rod 1011, and a driven gear 201 is meshed with the tooth groove of the crescent gear 2. A low shaft 202 is rotatably connected to the bottom of the driven gear 201, and a threaded rod 203 is meshed with the tooth groove of the driven gear 201. One end of the threaded rod 203 is rotatably connected to a bearing seat 204, and a driving motor 205 is arranged at the other end of the threaded rod 203. The arc-shaped moving path of the movable rod 1011 is troublesome to drive with a motor, and the loosening of the clamp can easily cause the motor to reverse. When the clamp mechanism completes the clamping of the product under the drive of the motor, as the machine tool starts to perform processing operations such as high-speed cutting or milling, the fastening strength of the clamp may gradually weaken due to the influence of factors such as vibration, centrifugal force and thermal expansion generated during the processing, especially for a long time. During processing or extreme working conditions, this weakening is more obvious, and the fixture cannot always maintain its original tight state, increasing the risk of workpiece displacement or even falling off, which will not only cause the product to be scrapped, damage the machine tool, cause production interruption, but also pose a threat to the safety of the operator. The threaded rod 203 is installed to solve this problem. When the movable rod 1011 needs to be rotated, the staff starts the drive motor 205 to rotate the threaded rod 203 to engage the driven gear 201. When the fixture is tightened, the threaded rod 203 and the driven gear 201 have a self-locking effect, forming a tight mechanical interlock, which can prevent the driven gear 201 from reversing, effectively preventing the fixture from loosening, and achieving the effect of increasing the service life of the equipment and increasing the yield rate. A reducer 206 is provided at one end of the drive motor 205 to reduce the output speed, increase the output torque, and save production costs.

[0027] The working principle of the utility model is as follows: when the product processing is completed, the staff controls the movable rod 1011 to rotate counterclockwise, so that the top plate ring 109 and the bottom sliding plate 1013 also rotate counterclockwise, and the cooperation of the annular groove 1010 and the top short shaft 107 causes the round pry head 106 to rotate discretely counterclockwise, loosening the pressing of the product. At the same time, the sliding shaft 105 moves along the round head groove 103 away from the center, so that the clamp quickly releases the product. When the product is put in, the staff controls the movable rod 1011 to rotate clockwise, so that the round pry head 106 quickly gathers toward the center, thereby clamping the product. When the movable rod 1011 needs to be rotated, the staff starts the drive motor 205 to rotate the threaded rod 203 to engage the driven gear 201 to rotate. When the clamp is tightened, the cooperation of the threaded rod 203 and the driven gear 201 has a self-locking effect, forming a tight mechanical interlocking, which can prevent the driven gear 201 from reversing.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A CNC machine tool non-stop fixture, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixed with an arc-cutting piece (101) in a circular array, one side of the arc-cutting piece (101) is fixed with a pressing plate (102), the bottom of the pressing plate (102) is slidably connected with a bottom sliding plate (1013), the top of the bottom sliding plate (1013) is fixed with a limit column (1012) in a circular array, the top of the limit column (1012) is fixed with a top plate ring (109), the circumferential surface of the top plate ring (109) is fixed with a moving rod (1011), and the surface of the top plate ring (109) is provided with an annular groove (1010) in a circular array, and the annular groove (101 0) The inner wall is rotatably connected with a top short shaft (107), a round pry head (106) is fixed at the bottom of the top short shaft (107), a bottom sliding column (108) is fixed at the bottom of the round pry head (106), the bottom of the bottom sliding column (108) is slidably connected with the top of the bottom sliding plate (1013), a rotating pry (104) is fixed on the circumference of the round pry head (106), a round head groove (103) is opened at the top of the arc cutting piece (101), a sliding shaft (105) is slidably connected to the inner wall of the round head groove (103), and the circumference of the sliding shaft (105) is rotatably connected to the inner wall of the rotating pry (104).

2. A CNC machine tool non-stop fixture according to claim 1, characterized in that: A waning-moon gear (2) is fixed to one end of the movable rod (1011), a driven gear (201) is meshed with a tooth groove of the waning-moon gear (2), a lower shaft (202) is rotatably connected to the bottom of the driven gear (201), a threaded rod (203) is meshed with a tooth groove of the driven gear (201), one end of the threaded rod (203) is rotatably connected to a bearing seat (204), and a driving motor (205) is provided at the other end of the threaded rod (203).

3. The CNC machine tool non-stop fixture according to claim 1, characterized in that: The top of the bottom sliding plate (1013) is provided with anti-skid grooves (3) in a linear array.

4. The CNC machine tool non-stop fixture according to claim 1, characterized in that: The surface of the bottom sliding plate (1013) is provided with a hollow groove (301).

5. The CNC machine tool non-stop fixture according to claim 1, characterized in that: The circumferential surface of the round pry head (106) is provided with an engaging groove (302).

6. The CNC machine tool non-stop fixture according to claim 2, characterized in that: A reducer (206) is provided at one end of the driving motor (205).

7. The CNC machine tool non-stop fixture according to claim 5, characterized in that: The edges at both ends of the inner wall of the engaging groove (302) are rounded.

Images