Multi-station workpiece clamping structure for engraving and milling machine

Abstract

The utility model discloses a multi-station workpiece clamping structure for an engraving and milling machine, and relates to the technical field of engraving and milling equipment. The multi-station workpiece clamping structure for the engraving and milling machine comprises a positioning plate, and further comprises a servo motor arranged in the center of the surface of the bottom of the positioning plate and used for driving the positioning plate to rotate intermittently; the multiple electric clamping jaws are arranged on the peripheral side of the positioning plate in a surrounding mode, and the electric clamping jaws are used for clamping workpieces; the clamping assemblies are arranged on the outer side of the electric clamping jaw, and one end of each clamping assembly is connected with the outer wall of the positioning plate; according to the multi-station rotary feeding device for the engraving and milling machine, multi-station rotary feeding can be carried out on the engraving and milling machine, so that the times that the workpiece clamping structure enters and exits the engraving and milling machine can be reduced, and the efficiency of the engraving and milling machine for machining workpieces can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision engraving equipment, in particular to a multi-station workpiece clamping structure for a precision engraving machine. Background Art

[0002] Precision engraving machine is a kind of CNC machine tool. It can carve and mill accurately. On the basis of engraving machine, it increases the power of spindle and servo motor, the bearing capacity of bed, while maintaining the high speed of spindle. More importantly, the precision is very high. Precision engraving machine is used to complete smaller milling amount and finishing of small workpieces. It is suitable for copper processing, graphite processing, etc.

[0003] However, when the existing workpiece clamping structure for precision engraving machines is in use, most of them clamp a single workpiece. Therefore, the workpiece clamping structure needs to constantly enter and exit the precision engraving machine to facilitate the precision engraving machine to process each workpiece. This greatly reduces the efficiency of the precision engraving machine in processing the workpiece. Therefore, we propose a multi-station workpiece clamping structure for precision engraving machines to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a multi-station workpiece clamping structure for a precision engraving machine, which solves the problem that most of the workpieces are clamped individually, and the workpiece clamping structure needs to constantly enter and exit the precision engraving machine to facilitate the precision engraving machine to process each workpiece, which greatly reduces the efficiency of the precision engraving machine in processing the workpiece.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-station workpiece clamping structure for a precision engraving machine, including a positioning plate, and also including:

[0006] A servo motor is provided at the center of the bottom surface of the positioning plate, and is used to drive the positioning plate to rotate intermittently;

[0007] An electric clamping jaw, wherein a plurality of the electric clamping jaws are provided and the plurality of electric clamping jaws are arranged around the circumference of the positioning plate, and the electric clamping jaws are used to clamp a workpiece;

[0008] A clamping assembly, wherein a plurality of clamping assemblies are provided, each of the clamping assemblies is arranged outside the electric clamping jaw, and one end of the clamping assembly is connected to the outer wall of the positioning plate;

[0009] An internal thread groove, wherein a plurality of internal thread grooves are provided and the internal thread grooves are opened on the peripheral side of the outer wall of the positioning plate and are used for installing and fixing the clamping assembly;

[0010] A stabilizing component is provided in plurality and is arranged between two adjacent clamping components. The stabilizing component is used to strengthen the structural strength of the two adjacent clamping components.

[0011] Preferably, the clamping assembly includes a base plate, a limit plate is fixedly provided at one end of the base plate, and through holes are provided on the side walls of the limit plate and on the upper and lower sides of the base plate, and mounting screws are inserted into the inner cavities of the two through holes, and one end of the mounting screw is connected to the inner cavity of the internal thread groove;

[0012] Stepped blocks are provided on both sides of the top surface of the bottom plate, and anti-slip components for clamping and limiting the electric clamping claws are provided on the outer side of the bottom plate.

[0013] Preferably, the anti-slip component includes a C-shaped frame, the open end of the C-shaped frame is located below the base plate, first internal threaded holes are provided on both sides of the open end of the C-shaped frame, and first limiting screws are rotatably installed in the inner cavities of the two first internal threaded holes.

[0014] Preferably, the anti-slip component further includes a rubber plate, and the rubber plate is arranged on the top surface of the inner cavity of the C-shaped frame.

[0015] Preferably, a plurality of anti-slip protrusions are provided on the bottom surface of the rubber plate, and the plurality of anti-slip protrusions are distributed in a rectangular array.

[0016] Preferably, the stabilizing assembly includes a stabilizing rod, and both ends of the stabilizing rod are provided with a bracket for engaging with the side wall of the bottom plate;

[0017] A second internal threaded hole is formed on the top surface of each of the brackets, and a second limiting screw is rotatably installed in the inner cavity of the second internal threaded hole.

[0018] Preferably, the height of the inner cavity of the card holder is the same as the thickness of the bottom plate, and the two are plug-connected.

[0019] Beneficial effects

[0020] The utility model provides a multi-station workpiece clamping structure for a precision engraving machine. Compared with the prior art, it has the following beneficial effects:

[0021] The precision engraving machine uses a multi-station workpiece clamping structure. Through the positioning plate, it can be installed on the output shaft of the servo motor, and multiple corresponding clamping components can be installed through multiple internal thread grooves. Then, through each clamping component, it is convenient for the staff to install the corresponding model of electric clamping jaws on it according to the specifications of the workpiece. Then, by opening multiple electric clamping jaws, each electric clamping jaw can clamp and position the workpiece, so that the workpiece clamping structure can clamp multiple workpieces at one time. Then, by installing the servo motor on the driving device of the feeding and discharging of the precision engraving machine, it can drive the servo motor to reach the specified position.

[0022] Then, through the operation of the servo motor, the positioning plate can be driven to rotate intermittently, so that the precision engraving machine processing station can process the workpieces that are rotated and transported one by one, thereby improving the efficiency of workpiece processing. Through multiple stabilizing components, the structure between the two adjacent clamping components can be strengthened, thereby improving the stability of the clamping components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0027] Figure 5 This is a schematic diagram of the exploded structure of the clamping assembly of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the stabilizing component of the utility model.

[0029] In the figure: 1. Positioning plate; 2. Servo motor; 3. Electric clamp; 4. Clamping assembly; 41. Base plate; 42. Limit plate; 43. Through hole; 44. Mounting screw; 45. Step stop; 46. C-shaped frame; 47. First internal threaded hole; 48. First limiting screw; 49. Rubber plate; 5. Internal threaded groove; 6. Stabilizing assembly; 61. Stabilizing rod; 62. Clamping bracket; 63. Second internal threaded hole; 64. Second limiting screw. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-3The utility model provides a technical solution: a multi-station workpiece clamping structure for a precision engraving machine, comprising a positioning plate 1, and also comprising: a servo motor 2, the servo motor 2 being arranged at the center position of the bottom surface of the positioning plate 1, the servo motor 2 being used to drive the positioning plate 1 to rotate intermittently; an electric clamping jaw 3, a plurality of electric clamping jaws 3 being provided, and a plurality of electric clamping jaws 3 being arranged around the circumference of the positioning plate 1, the electric clamping jaw 3 being used to clamp the workpiece; a clamping assembly 4, a plurality of clamping assemblies 4 being provided, the clamping assembly 4 being arranged outside the electric clamping jaw 3, one end of the clamping assembly 4 being connected to the outer wall of the positioning plate 1; an internal thread groove 5, a plurality of internal thread grooves 5 being provided, the internal thread grooves 5 being opened on the circumference of the outer wall of the positioning plate 1, the internal thread grooves 5 being used to install and fix the clamping assembly 4; a stabilizing assembly 6, a plurality of stabilizing assemblies 6 being provided, the stabilizing assembly 6 being arranged between two adjacent clamping assemblies 4, the stabilizing assembly 6 being used to strengthen the structural strength of the two adjacent clamping assemblies 4;

[0032] Through the positioning plate 1, it can be installed on the output shaft of the servo motor 2, and the corresponding multiple clamping components 4 can be installed through multiple internal thread grooves 5. Then, through each clamping component 4, it is convenient for the staff to install the corresponding model of electric clamp 3 on it according to the specifications of the workpiece. Then, by opening multiple electric clamps 3, each electric clamp 3 can clamp and position the workpiece, so that the workpiece clamping structure can clamp multiple workpieces at one time. Then, by installing the servo motor 2 on the feed and discharge driving device of the precision engraving machine, it can drive the servo motor 2 to reach the specified position. Then, through the operation of the servo motor 2, the positioning plate 1 can be driven to rotate intermittently, so that the precision engraving machine processing station can process the workpiece that is rotated and transported one by one, thereby improving the efficiency of workpiece processing. Through multiple stabilizing components 6, the structure between the two adjacent clamping components 4 can be emphasized, thereby improving the stability of the use of the clamping component 4.

[0033] See Figure 3-Figure 5 The clamping assembly 4 includes a base plate 41, a limit plate 42 is fixedly provided at one end of the base plate 41, and through holes 43 are provided on the side walls of the limit plate 42 and on the upper and lower sides of the base plate 41. The inner cavities of the two through holes 43 are plugged with mounting screws 44, and one end of the mounting screws 44 is connected to the inner cavity of the internal thread groove 5; stepped stops 45 are provided on both sides of the top surface of the base plate 41, and an anti-slip component for limiting the engagement of the electric clamp 3 is provided on the outer side of the base plate 41. The anti-slip component includes a C-shaped frame 46, the open end of the C-shaped frame 46 is located below the base plate 41, and first internal threaded holes 47 are provided on both sides of the open end of the C-shaped frame 46. The inner cavities of the two first internal threaded holes 47 are rotatably installed with first limit screws 48;

[0034] Through the limit plate 42 in the clamping assembly 4, it can be installed in the internal thread groove 5 on the positioning plate 1 through the through hole 43 and the mounting screw 44, and can also be installed and fixed to the base plate 41. Since stepped blocks 45 are provided on both sides of the top surface of the base plate 41, and the steps on the two stepped blocks 45 are one-to-one corresponding, the two stepped blocks 45 can facilitate the staff to install the corresponding model of electric clamp 3 on it according to the specifications of the workpiece, and then put the C-shaped frame 46 on the outside of the base plate 41 and the electric clamp 3, and then by rotating the first limit screw 48 in the first internal threaded hole 47, the C-shaped frame 46 can be pulled downward, and then the electric clamp 3 can be clamped and positioned downward, so that the electric clamp 3 can be stably engaged on the two stepped blocks 45, thereby improving the stability of the use of the electric clamp 3.

[0035] See Figure 5 The anti-slip member further includes a rubber plate 49, which is arranged on the top surface of the inner cavity of the C-shaped frame 46, and a plurality of anti-slip protrusions are arranged on the bottom surface of the rubber plate 49, and the plurality of anti-slip protrusions are distributed in a rectangular array;

[0036] The rubber plate 49 with a plurality of anti-slip protrusions can prevent the clamping C-shaped frame 46 from damaging the electric clamping jaw 3, thereby ensuring the safety of the electric clamping jaw 3 during clamping.

[0037] See Figure 3 、 Figure 6 The stabilizing assembly 6 includes a stabilizing rod 61, and both ends of the stabilizing rod 61 are provided with a bracket 62 for engaging with the side wall of the bottom plate 41; a second internal threaded hole 63 is opened on the top surface of each bracket 62, and a second limit screw 64 is rotatably installed in the inner cavity of the second internal threaded hole 63. The inner cavity height of the bracket 62 is the same as the thickness of the bottom plate 41, and the two are plugged and connected;

[0038] Through the two brackets 62 in the stabilizing component 6, they can be connected together through the stabilizing rod 61, and can also be respectively clamped on the two adjacent base plates 41, and by rotating the second limit screw 64 on the second internal threaded hole 63, the bracket 62 can be stably and firmly clamped on the base plate 41, and then, under the connection of the stabilizing rod 61, the stability of the support of the two adjacent base plates 41 can be stabilized.

[0039] During operation, the positioning plate 1 can be installed on the output shaft of the servo motor 2, and the corresponding multiple clamping components 4 can be installed through multiple internal thread grooves 5. Then, through each clamping component 4, the staff can conveniently install the corresponding model of electric clamp 3 on it according to the specifications of the workpiece. Then, by opening multiple electric clamps 3, each electric clamp 3 can clamp and position the workpiece, so that the workpiece clamping structure can clamp multiple workpieces at one time. Then, by installing the servo motor 2 on the feed and discharge driving device of the precision engraving machine, it can drive the servo motor 2 to reach the specified position. Then, through the operation of the servo motor 2, the positioning plate 1 can be driven to rotate intermittently, so that the precision engraving machine processing station can process the workpiece that is rotated and transported one by one, thereby improving the efficiency of workpiece processing. Through multiple stabilizing components 6, the structure between the two adjacent clamping components 4 can be emphasized, thereby improving the stability of the use of the clamping component 4.

[0040] The limit plate 42 in the clamping assembly 4 can be installed in the internal thread groove 5 on the positioning plate 1 through the through hole 43 and the mounting screw 44, and can also be installed and fixed to the base plate 41. Since both sides of the top surface of the base plate 41 are provided with stepped stops 45, and the steps on the two stepped stops 45 are one-to-one corresponding, the two stepped stops 45 can facilitate the staff to install the corresponding model of electric clamp 3 on it according to the specifications of the workpiece, and then put the C-shaped frame 46 on the outside of the base plate 41 and the electric clamp 3, and then by rotating the first limit screw 48 in the first internal threaded hole 47, the C-shaped frame 46 can be pulled downward to clamp and position the electric clamp 3 downward, so that the electric clamp 3 can be stably engaged on the two stepped stops 45, thereby improving the stability of the electric clamp 3 in use. The rubber plate 49 with multiple anti-slip protrusions can prevent the clamping C-shaped frame 46 from damaging the electric clamp 3, thereby ensuring the safety of the electric clamp 3 during clamping.

[0041] Through the two brackets 62 in the stabilizing component 6, they can be connected together through the stabilizing rod 61, and can also be respectively clamped on the two adjacent base plates 41, and by rotating the second limit screw 64 on the second internal threaded hole 63, the bracket 62 can be stably and firmly clamped on the base plate 41, and then, under the connection of the stabilizing rod 61, the stability of the support of the two adjacent base plates 41 can be stabilized.

[0042] In summary, the device can perform multi-station rotary feeding for the precision engraving machine, thereby reducing the number of times the workpiece clamping structure enters and exits the precision engraving machine, thereby improving the efficiency of the precision engraving machine in processing the workpiece.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A multi-station workpiece clamping structure for a precision engraving machine, comprising a positioning plate (1), characterized in that: Also includes: A servo motor (2), the servo motor (2) being arranged at a center position of the bottom surface of the positioning plate (1), and the servo motor (2) being used to drive the positioning plate (1) to rotate intermittently; An electric clamp (3), wherein a plurality of the electric clamps (3) are provided, and the plurality of electric clamps (3) are arranged around the circumference of the positioning plate (1), and the electric clamps (3) are used to clamp a workpiece; A clamping assembly (4), wherein a plurality of the clamping assemblies (4) are provided, the clamping assembly (4) is arranged outside the electric clamping jaw (3), and one end of the clamping assembly (4) is connected to the outer wall of the positioning plate (1); An internal thread groove (5), wherein a plurality of the internal thread grooves (5) are provided, and the internal thread grooves (5) are opened on the peripheral side of the outer wall of the positioning plate (1), and the internal thread grooves (5) are used to install and fix the clamping assembly (4); A stabilizing component (6), wherein a plurality of stabilizing components (6) are provided, wherein the stabilizing component (6) is provided between two adjacent clamping components (4), and the stabilizing component (6) is used to strengthen the structural strength of the two adjacent clamping components (4).

2. The multi-station workpiece clamping structure for a precision engraving machine according to claim 1, characterized in that: The clamping assembly (4) includes a base plate (41), a limiting plate (42) is fixedly provided at one end of the base plate (41), and through holes (43) are provided on the side walls of the limiting plate (42) and on the upper and lower sides of the base plate (41), and the inner cavities of the two through holes (43) are both plugged with mounting screws (44), and one end of the mounting screw (44) is connected to the inner cavity of the internal thread groove (5); Stepped blocks (45) are provided on both sides of the top surface of the bottom plate (41), and an anti-slip component for engaging and limiting the electric clamping jaw (3) is provided on the outer side of the bottom plate (41).

3. The multi-station workpiece clamping structure for a precision engraving machine according to claim 2, characterized in that: The anti-slip component comprises a C-shaped frame (46), the open end of the C-shaped frame (46) is located below the bottom plate (41), and first internal threaded holes (47) are provided on both sides of the open end of the C-shaped frame (46), and first limiting screws (48) are rotatably installed in the inner cavities of the two first internal threaded holes (47).

4. The multi-station workpiece clamping structure for a precision engraving machine according to claim 3, characterized in that: The anti-slip component further comprises a rubber plate (49), and the rubber plate (49) is arranged on the top surface of the inner cavity of the C-shaped frame (46).

5. The multi-station workpiece clamping structure for a precision engraving machine according to claim 4, characterized in that: The bottom surface of the rubber plate (49) is provided with a plurality of anti-slip protrusions, and the plurality of anti-slip protrusions are distributed in a rectangular array.

6. The multi-station workpiece clamping structure for a precision engraving machine according to claim 2, characterized in that: The stabilizing assembly (6) includes a stabilizing rod (61), and both ends of the stabilizing rod (61) are provided with a clamping frame (62) for clamping on the side wall of the bottom plate (41); A second internal threaded hole (63) is provided on the top surface of each of the brackets (62), and a second limiting screw (64) is rotatably mounted in the inner cavity of the second internal threaded hole (63).

7. The multi-station workpiece clamping structure for a precision engraving machine according to claim 6, characterized in that: The inner cavity height of the card frame (62) is the same as the thickness of the bottom plate (41), and the two are plug-connected.

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