Cnc automatic clamping tool clamp

Abstract

The utility model relates to the field of tool clamps, in particular to a cnc automatic clamping tool clamp. According to the technical scheme, the machining device is characterized by comprising a rotary table, a base body, a clamp, a movement assembly and an upper module, the base body is installed on the rotary table, a workpiece is placed on the base body, the clamp is fixedly installed on the base body, the movement assembly is also fixedly installed on the base body, the upper module is fixedly connected with the movement assembly, and the movement assembly controls the upper module to be buckled on the workpiece. The automation degree of workpiece clamping is improved, manpower is saved, meanwhile, the upper module is accurately and rapidly clamped by the moving assembly, the time for manually and repeatedly adjusting the upper module is saved, and therefore the machining efficiency of the workpiece is improved.

Description

Technical Field

[0001] The present application relates to the field of tooling fixtures, and in particular to a CNC automatic clamping tooling fixture. Background Art

[0002] A fixture is a process device used to quickly fasten the workpiece during processing so that the machine tool, tool and workpiece maintain the correct relative position. Tooling fixtures are indispensable components of mechanical processing and they promote the smooth progress of the manufacturing process.

[0003] At present, CNC generally includes a turntable, a base installed on the turntable, and a fixture set on the base. Some workpieces have complex structures and cannot be clamped directly. The limiting part on the base and another upper module are needed to limit the workpiece together, and then fixed uniformly by the fixture.

[0004] With regard to the above-mentioned related technologies, the upper module used to limit larger workpieces is also heavy. After the workpiece is processed, it needs to be manually disassembled and clamped manually. During clamping, the position of the upper module needs to be continuously adjusted to correctly fit on the workpiece, which wastes a lot of time. The CNC is always in standby mode, resulting in low processing efficiency. Utility Model Content

[0005] In order to improve the processing efficiency of workpieces, the present application provides a CNC automatic clamping fixture.

[0006] The CNC automatic clamping fixture provided in this application adopts the following technical solution:

[0007] A CNC automatic clamping fixture comprises a turntable, a base, and a fixture, wherein the base is arranged on the turntable, the fixture is arranged on the base, a workpiece is placed on the base, and the tool holder further comprises a motion component arranged on the base for outputting power in the horizontal and vertical directions; and an upper module fixedly arranged on the motion component for limiting the workpiece.

[0008] Through the above technical solution, the motion component drives the upper module to move and controls the upper module to accurately engage with the workpiece, which improves the degree of automation of clamping the workpiece, saving manpower. At the same time, the motion component clamps the upper module accurately and quickly, saving the time of manual repeated adjustment of the upper module, thereby improving the processing efficiency of the workpiece.

[0009] Preferably, the motion assembly includes a lifting power member fixedly arranged on the base and located at one end of the upper module for providing power in the vertical direction; and a horizontal power member fixedly arranged on the lifting power member for outputting power in the horizontal direction.

[0010] Through the above technical solution, through the superposition of two movements of the lifting power part and the horizontal power part, the upper module can be more accurately controlled to be fastened to the workpiece, thereby improving the fastening accuracy.

[0011] Preferably, the clamp includes a pneumatic element fixedly arranged on the base and passing through the base; and a fixing rod fixedly connected to the pneumatic element, the pneumatic element is used to drive the fixing rod to move, and the fixing rod passes through the upper module and is used to fix the upper module.

[0012] Through the above technical solution, the fixture further clamps and fixes the upper module that is engaged on the workpiece, thereby improving the stability of the upper module when the CNC processes the workpiece, and helping to improve the processing accuracy of the workpiece.

[0013] Preferably, a fixing hole is opened on the upper module, and the fixing rod passes through the fixing hole to clamp and fix the upper module.

[0014] Through the above technical solution, the fixing rod passes through the upper module and is fixed thereon, the overall structure is compact, and the locking and clamping process is simple and fast.

[0015] Preferably, the fixing hole includes an inserting portion, which passes through the upper module, and the fixing rod can pass through the inserting portion; and a locking portion, which is connected to the inserting portion, and the fixing rod can slide from the inserting portion into the locking portion, and the fixing rod is used to abut against the upper module in the locking portion.

[0016] Through the above technical solution, the fixing rod passes through the upper module through the insertion part and enters the locking part to clamp and fix the upper module. The overall structure is simple and the locking process is fast and efficient.

[0017] Preferably, the motion components may be provided in multiple groups, and the multiple groups of the motion components are evenly spaced and arranged on the base, and the upper module is fixedly connected to the multiple groups of the motion components at the same time.

[0018] Through the above technical solution, multiple groups of motion components move synchronously, controlling the upper module to accurately engage with the workpiece, reducing the possibility of workpiece deviation and improving the accuracy of upper module operation.

[0019] Preferably, the clamps may be provided in multiple groups, and the multiple groups of the clamps are arranged in a row and evenly spaced on the substrate.

[0020] Through the above technical solution, multiple groups of clamps clamp the upper module at the same time, and make the upper module evenly stressed, thereby reducing the possibility of deformation of the upper module due to uneven stress.

[0021] Preferably, a deformation notch is provided on the upper module.

[0022] Through the above technical solution, the deformation notch provides space for the deformation of the upper module, so that the upper module can release the pressure it is subjected to, thereby extending the service life of the upper module.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The motion component drives the upper module to move and controls the upper module to accurately fit on the workpiece, which improves the degree of automation of clamping the workpiece, saving manpower. At the same time, the motion component clamps the upper module accurately and quickly, saving the time of manual repeated adjustment of the upper module, thereby improving the processing efficiency of the workpiece.

[0025] 2. The fixture further clamps and fixes the upper module that is engaged on the workpiece, improving the stability of the upper module when the CNC processes the workpiece, which helps to improve the processing accuracy of the workpiece.

[0026] 3. Multiple groups of motion components move synchronously to control the upper module to accurately fit on the workpiece, reduce the possibility of workpiece deviation, and improve the accuracy of upper module operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a CNC automatic clamping fixture in a preferred embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure of a clamp in a preferred embodiment of the present application.

[0029] Figure 3 It is a structural diagram of the upper module and the motion component in a preferred embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. turntable; 2. base; 21. limit part; 3. clamp; 31. pneumatic element; 32. fixing rod; 321. head; 322. rod body; 4. moving component; 41. lifting power part; 42. horizontal power part; 5. upper module; 6. fixing hole; 61. insertion part; 62. locking part; 7. deformation notch; 8. support. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a CNC automatic clamping fixture. Figure 1The CNC automatic clamping fixture includes a turntable 1, a base 2, a fixture 3, a motion component 4 and an upper module 5. The base 2 is installed on the turntable 1, the workpiece is placed on the base 2, the fixture 3 is fixedly installed on the base 2, the motion component 4 is also fixedly installed on the base 2, and the upper module 5 is fixedly connected to the motion component 4. The motion component 4 controls the upper module 5 to buckle on the workpiece, and the fixture 3 passes through the upper module 5 and clamps the upper module 5.

[0033] refer to Figure 1 A driving source is arranged inside the turntable 1, and the base 2 is fixedly mounted on the turntable 1. The turntable 1 drives the base 2 to rotate around its central axis. In addition to the three-axis motion of the CNC tool, the turntable 1 provides the CNC with a fourth-axis motion. The turntable 1 cooperates with the CNC tool to improve the machine tool accuracy and reduce the cost.

[0034] refer to Figure 1 and Figure 2 The overall structure of the workpiece is relatively complex. When the workpiece is placed on the base 2, it cannot be positioned, which is not conducive to the upper module 5 limiting the workpiece. Therefore, a limiting portion 21 is provided on the top surface of the base 2. Specifically, the limiting portion 21 is installed on the base 2 and is integrally connected to the base 2. The shape and contour of the limiting portion 21 are adapted to the contour of the workpiece. When the workpiece is placed on the limiting portion 21, the limiting portion 21 limits the movement of the workpiece in the horizontal direction, making it easier for the upper module 5 to buckle and fix the workpiece.

[0035] refer to Figure 2 and Figure 3 After the workpiece is limited in the horizontal direction, the upper module 5 can be snapped onto the workpiece to limit the movement of the workpiece in the vertical direction. The upper module 5 is clamped and fixed by the clamp 3, and the clamp 3 is fixedly installed on the base 2. Specifically, the clamp 3 includes a pneumatic element 31 and a fixing rod 32, wherein the pneumatic element 31 is vertically arranged and fixedly installed at the bottom of the base 2. In this embodiment, the pneumatic element 31 is selected as a telescopic cylinder, and a through hole is opened on the base 2. The telescopic rod of the telescopic cylinder can pass through the through hole on the base 2 and extend vertically upward to output linear reciprocating power; the fixing rod 32 is fixedly installed on the pneumatic element 31. Specifically, in this embodiment, the fixing rod 32 is a bolt, and the rod body 322 of the bolt is threadedly connected and installed on the telescopic rod of the telescopic cylinder. The extension or retraction of the telescopic rod of the telescopic cylinder drives the bolt to rise or fall.

[0036] refer to Figure 2 and Figure 3The upper module 5 is a plate-like structure, which is placed horizontally on the base 2. A groove consistent with the contour of the workpiece is provided on the lower surface of the upper module 5. When the upper module 5 is buckled on the workpiece, the workpiece can be limited more stably. In order to cooperate with the clamp 3 to fix the upper module 5, a fixing hole 6 is provided on the upper module 5, and the fixing hole 6 runs through the upper and lower sides of the upper module 5. Specifically, the fixing buckle includes a sleeve portion 61 and a locking portion 62. The sleeve portion 61 is a circular hole, and the diameter of the circular hole is slightly larger than the diameter of the bolt head 321. The locking portion 62 is The long hole has a locking portion 62 that is connected to the inserting portion 61. The width of the long hole is smaller than the diameter of the round hole and is adapted to the diameter of the bolt shaft 322. The head 321 of the bolt passes through the inserting portion 61 to penetrate the upper module 5, so that the upper module 5 is placed on the workpiece. The upper module 5 is then moved to allow the shaft 322 of the bolt to enter the locking portion 62. The telescopic cylinder is started to retract the telescopic rod of the telescopic cylinder, driving the bolt to descend. The head 321 of the bolt cannot pass through the locking portion 62 and abuts against the upper module 5 to clamp the upper module 5.

[0037] refer to Figure 2 and Figure 3 Since the overall structure of the upper module 5 is relatively long, if only one set of clamps 3 is set, when the clamps 3 clamp the upper module 5, the upper module 5 may be unevenly stressed, thereby causing the upper module 5 to be deformed, affecting the limiting effect of the workpiece and shortening the service life of the upper module 5. Therefore, multiple sets of clamps 3 can be set, such as two sets, three sets or more. In the present embodiment, three sets of clamps 3 are set, and the three sets of clamps 3 are arranged in a row and evenly spaced on the base 2. Correspondingly, three sets of fixing holes 6 are opened at corresponding positions of the upper module 5, and one set of clamps 3 cooperates with one set of fixing holes 6. The three sets of clamps act synchronously to clamp and fix the upper module 5 together, and the upper module 5 is evenly stressed.

[0038] refer to Figure 2 and Figure 3 In the process of clamping the upper module 5, the upper module 5 may still be affected by other factors, resulting in uneven force, which also has a certain impact on the processing of the workpiece. In order to reduce this impact, a deformation notch 7 is provided on the upper module 5. Specifically, the deformation notch 7 is recessed downward from the upper surface of the upper module 5. The deformation notch 7 provides space for the deformation of the upper module 5 due to uneven force, so that the inappropriate force on the upper module 5 is released, thereby reducing the impact of the upper module 5 on the processing of the workpiece and extending the service life of the upper module 5.

[0039] refer to Figure 2 and Figure 3, and the upper module 5 is relatively bulky as a whole. Each time the workpiece is processed, it is necessary to manually install and remove the upper module 5, which is relatively laborious. Therefore, a motion component 4 is set, and the upper module 5 is installed on the motion component 4. The motion component 4 drives the upper module 5 and buckles it on the workpiece. Specifically, the motion component 4 includes a lifting power member 41 and a horizontal power member 42. The lifting power member 41 is installed on the base 2, and the horizontal power member 42 is installed on the lifting power member 41. Among them, in order to avoid the CNC tool during processing, the lifting power member 41 is set on the base 2 On one end, in the present embodiment, the lifting power part 41 is a rodless cylinder, which is vertically arranged and fixedly mounted on the base 2, and is used to lift the linear reciprocating power in the vertical direction; the horizontal moving part is a rod cylinder, and a support 8 is fixedly mounted on the rodless cylinder. The rodless cylinder can drive the support 8 to move vertically, and the rod cylinder is fixedly mounted on the support 8. Specifically, the rod cylinder is horizontally arranged, and the rod body of the rod cylinder can be extended horizontally, and the movement direction of the rod body of the rod cylinder is the same as the clamping direction of the upper module 5. One end of the upper module 5 is fixedly connected to the rod body of the rod cylinder.

[0040] refer to Figure 2 and Figure 3 The overall structure of the upper module 5 is relatively long. The motion component 4 is installed at one end of the upper module 5 to avoid the CNC tool. With this arrangement, the other end of the upper module 5 may sag, resulting in the inability to accurately engage and clamp the upper module 5. Therefore, multiple groups of motion components 4 can be provided, such as two groups, three groups or more. In the present embodiment, two groups of motion components 4 are provided. The two groups of motion components 4 are relatively arranged and located at the two ends of the upper module 5. The two groups of motion components 4 move synchronously, so that the upper module 5 always maintains a horizontal state, can be accurately sleeved on the fixing rod 32, and engage into the workpiece.

[0041] refer to Figure 2 and Figure 3 The clamping process of the upper module 5 is as follows. After the workpiece is placed on the base 2, the lifting power member 41 is started, driving the upper module 5 to move vertically downward, and the fixing rod 32 passes through the upper module 5 through the insertion portion 61. At this time, the upper module 5 abuts against the workpiece, and the horizontal power member 42 is started. The horizontal power member 42 pulls the upper module 5 to move horizontally, so that the fixing rod 32 enters the locking portion 62. At this time, the upper module 5 is correctly buckled on the workpiece, and the pneumatic component 31 is started to drive the fixing rod 32 to move vertically downward, abut against the upper module 5 and clamp the upper module 5.

[0042] The implementation principle of a CNC automatic clamping tooling fixture in an embodiment of the present application is: a base 2 is fixedly mounted on a turntable 1, a workpiece is placed on the base 2, a motion component 4 is also mounted on the base 2, an upper module 5 is fixedly mounted on the motion component 4, the motion component 4 drives the upper module 5 to snap onto the workpiece, a fixture 3 is mounted on the base 2, the fixture 3 passes through the base 2 and the upper module 5, and clamps the upper module 5.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A CNC automatic clamping fixture, comprising a turntable (1), a base (2), and a fixture (3), wherein the base (2) is arranged on the turntable (1), the fixture (3) is arranged on the base (2), and a workpiece is placed on the base (2), characterized in that: It also includes a motion component (4) arranged on the base (2) and used to output power in the horizontal and vertical directions; and an upper module (5) fixedly arranged on the motion component (4) and used to limit the workpiece.

2. A CNC automatic clamping fixture according to claim 1, characterized in that: The motion component (4) comprises A lifting power member (41) is fixedly arranged on the base (2) and located at one end of the upper module (5), and is used to provide power in the vertical direction; And a horizontal power member (42) is fixedly arranged on the lifting power member (41) and is used to output power in the horizontal direction.

3. The CNC automatic clamping fixture according to claim 1 is characterized in that: The clamp (3) comprises A pneumatic element (31) is fixedly arranged on the base (2) and penetrates the base (2); and a fixing rod (32) fixedly connected to the pneumatic element (31), wherein the pneumatic element (31) is used to drive the fixing rod (32) to move, and the fixing rod (32) passes through the upper module (5) and is used to fix the upper module (5).

4. The CNC automatic clamping fixture according to claim 3 is characterized by: The upper module (5) is provided with a fixing hole (6), and the fixing rod (32) passes through the fixing hole (6) to clamp and fix the upper module (5).

5. The CNC automatic clamping fixture according to claim 4 is characterized in that: The fixing hole (6) comprises A sleeve portion (61) passes through the upper module (5), and the fixing rod (32) can pass through the sleeve portion (61); and a locking portion (62) which is in communication with the inserting portion (61); the fixing rod (32) can slide from the inserting portion (61) into the locking portion (62); and the fixing rod (32) is used to abut against the upper module (5) in the locking portion (62).

6. The CNC automatic clamping fixture according to claim 2 is characterized by: The motion components (4) may be arranged in multiple groups, and the multiple groups of motion components (4) are evenly spaced and arranged on the base (2), and the upper module (5) is fixedly connected to the multiple groups of motion components (4) at the same time.

7. The CNC automatic clamping fixture according to claim 1 is characterized by: The clamps (3) may be provided in multiple groups, and the multiple groups of clamps (3) are arranged in a row and evenly spaced on the base (2).

8. The CNC automatic clamping fixture according to claim 1 is characterized by: The upper module (5) is provided with a deformation notch (7).

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