CN205520544U - Supplementary anchor clamps of blade processing - Google Patents

Abstract

The utility model discloses a blade processing auxiliary fixture, which belongs to the technical field of blade processing technology and auxiliary workpieces; the blade processing auxiliary fixture includes a base and two clamping blocks arranged on the end surface of the base for blade clamping. The two clamping blocks can be adjusted and assembled on the base through the adjustment mechanism, and a clamping mechanism for radially tightening the blade is arranged between the two clamping blocks of the base; the blade processing auxiliary fixture of the utility model is a The blade clamping operation is fast, the clamping reliability is high, and the blade processing auxiliary workpiece with high precision in the clamping process can improve the convenience of blade processing and ensure the high precision of blade processing.

Description

A blade processing auxiliary fixture

technical field

The utility model relates to a fixture, in particular to an auxiliary fixture for blade processing, which belongs to the technical field of blade processing technology and its auxiliary workpieces.

Background technique

During blade processing, it is necessary to clamp the blade root and blade crown before processing. Since the processing accuracy of the blade is required to be high, the positioning accuracy and clamping accuracy of the clamping are also high.

The traditional fixing method of the blade clamp is generally: through distributing two jacking bolts on the upper and lower fixing blocks respectively, when the blade is fixed by the tip, the operator tightens the four jacking bolts by "feeling" respectively to realize the clamping of the blade. During this process, part of the bolts may not be tightened due to operational reasons, aggravating the possibility of bolt loosening during processing, thereby affecting the processing quality of the product. With the demand for large blades and fine processing, the traditional clamping method has low clamping efficiency on the one hand, and limits the improvement of blade machining accuracy on the other hand, and also has the disadvantage of poor clamping accuracy.

Contents of the invention

The purpose of the invention of the utility model is to provide an auxiliary fixture for blade processing with fast blade clamping operation, high clamping reliability and high precision in the clamping process in order to improve the convenience of blade processing in view of the above existing problems. And ensure the high precision of blade processing.

The technical scheme that the utility model adopts is as follows:

An auxiliary jig for blade processing, comprising a base, two clamping blocks for blade clamping are arranged on the end surface of the base, the two clamping blocks can be adjusted and assembled on the base through an adjustment mechanism, and the two clamping blocks of the base are A tightening mechanism for radially tightening the blades is also arranged between the clamping blocks. In the blade processing auxiliary fixture of the utility model, the adjustment mechanism can be adjusted in linkage, which means that the two clamping blocks can move toward each other or move away from each other during the process of adjusting the adjustment mechanism, and the pair of two clamping blocks assembled can be adjusted in linkage. The clamping of the blade has the advantages of simple and convenient operation, high efficiency and good installation and positioning accuracy compared to the traditional method of clamping by multiple bolts.

In the blade processing auxiliary fixture of the utility model, the adjustment mechanism is a screw rod, and two sections of screw threads that are opposite to each other are arranged on the screw screw, and the two clamping blocks are respectively assembled on different sections of the screw threads to realize can be linked to adjust. The linkage adjustment of the two clamping blocks is realized through reverse threads, the structure is simple and reliable, and it is beneficial to the flexible clamping of the blade and the adjustment of clamping precision.

Further, the threaded rod is assembled on the base through a limiting mechanism. The screw rod assembled by the limit mechanism can play the role of screw rod positioning, ensure the running track of the two clamping blocks, and improve the assembly accuracy.

Further, the position limiting mechanism is located between two mutually opposite threads, including a limit slot arranged between the two threads, and a limit rod arranged on the base, the limit The rod is assembled in the limiting groove. The design of the limiting groove and the limiting rod has the advantage of a simple limiting structure, and the design and assembly of the limiting mechanism are simple and reliable.

Further, there is a gap along the axial direction of the screw rod between the limiting rod and the limiting groove. The gap along the axial direction of the screw also means that the width of the limit groove is greater than the width of the limit rod, so that the screw can be slightly adjusted and adapted to the left and right of the limit rod to improve the accuracy and reliability of clamping. In the use of the fixture in the utility model, especially for the convenience of installation, the fixture is placed in a vertical direction on the processing equipment (that is, one of the two clamping blocks is located above, while the other is located below), due to the effect of gravity , when the fixture tightens the screw bolt of the screw rod, the upper clamping block will first contact with the clamping surface of the blade, continue to tighten the bolt, the upper clamping block stops moving downward, and there is a gap between the limit rod and the limit groove along the axis of the screw rod. The gap in the direction makes the lower clamping block continue to move upward until it contacts the clamping surface of the blade, so as to ensure the reliability of clamping. Similarly, when the jig is in the horizontal direction or other directions on the processing equipment, there may also be a micro-adjustment process similar to the above-mentioned process. Therefore, it is not difficult to see that in the fixture of the present invention, there is a clearance design along the axial direction of the screw rod between the limit rod and the limit groove to further ensure that the two clamping blocks can fully contact and clamp with the blade process head, so that Further ensure the stability, accuracy and reliability of the clamping; the improved clamp does not need to rely on "feeling" to tighten the screws when using it, and can ensure that all clamping points are clamped tightly and the force is uniform; the entire installation process simplifies the number of bolt tightening, Reduce clamping time and improve production efficiency.

Further, there is a gap between the limit rod and the limit groove along the axial direction of the screw rod not greater than 1.5 mm. Through the design principle of the gap between the limit rod and the limit groove along the axial direction of the screw rod, the gap is further designed within the range of not more than 1.5mm, and the effect achieved is: the gap can greatly reduce the blade process. The processing accuracy requirements of the head make the processing accuracy of the blade process head further expanded to a symmetry of not more than 0.75mm. Under such asymmetry range, the concentricity of the blade between the fixture and the tailstock of the machine tool after clamping can also be guaranteed. It can greatly improve the processing quality of blades.

In the blade processing auxiliary fixture of the utility model, the base is provided with a chute, and the clamping block can be reciprocally slidably assembled on the base and the adjustment mechanism through a slider adapted to the chute. Through the slidable design of the chute and the slider, the accuracy of the fixture in use is ensured, providing a guarantee for the precise and quick installation of the blade.

Further, the chute is assembled by an L-shaped groove on the base and a cover plate arranged thereon. The balance and accuracy of the chute determine the precision of the clamping block on the blade process head, which indirectly determines the machining accuracy of the blade. Although in modern machining, it is possible to process two parallel chute However, in the utility model, through this assembly form, the difficulty of processing two high-precision parallel chutes is skillfully avoided, and the convenience of processing and assembly process is realized.

In the blade processing auxiliary fixture of the utility model, the clamping surface of the clamping block is provided with convex teeth protruding from the clamping surface. The convex tooth design can effectively reduce the contact area between the clamping surface and the blade process head, which is conducive to further reducing the requirements of the fixture for the machining accuracy of the blade root process head.

Further, two protruding teeth are provided in the width direction of the clamping surface of the clamping block. The principle of two convex teeth forming a straight line is similar to two points. The design of two convex teeth is used to ensure that the process head and the two convex teeth can be precisely fitted.

Further, the protruding teeth and the clamping block are of split structure, and the protruding teeth are arranged on the clamping block in a manner to be rotatable on the clamping surface. The purpose of this design is: when the clamping surface formed by the convex teeth is not on the same plane or the clamping surface of the blade process head is uneven, after a certain point on the convex tooth contacts the workpiece, the convex tooth can rotate under the action of force By adjusting the angle to ensure that the contact area between the convex teeth and the workpiece is large enough, it can effectively ensure and further improve the effectiveness of the final clamping surface and clamping force of the blade, and finally ensure the stability of the blade during processing.

Further, the protruding teeth are arranged on the L-shaped notch of the clamping block. The L-shaped notch provided on the outer end of the clamping surface of the clamping block can be used to accommodate the process head of the blade, and can also play the role of a radial stop to ensure the reliability of the clamping process.

In the blade processing auxiliary fixture of the present utility model, the clamping mechanism is a top mounted on the base, and the top can be mounted on the base in an axially floating manner. In this way, the tip can provide the radial floating clamping force of the blade, ensuring the reliability and stability of the clamping.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are: the blade processing auxiliary fixture is a blade with fast blade clamping operation, high clamping reliability, and high precision in the clamping process. Processing auxiliary workpieces can improve the convenience of blade processing and ensure the high precision of blade processing. In particular, the gap design between the limit rod and the limit groove along the axial direction of the screw rod brings positive effects of reducing the machining accuracy requirements of the blade process head and reduces the blade processing cost. Thanks to the overall structural design of the fixture, accurate and reliable clamping of the blade is realized on the basis of quick operation, which greatly improves the processing efficiency and precision of the blade.

Description of drawings

Fig. 1 is a schematic diagram of the use of the utility model blade processing auxiliary fixture;

Fig. 2 is a longitudinal sectional view of the blade processing auxiliary fixture of the utility model;

Figure 3 is an enlarged schematic view of point a in Figure 2;

Fig. 4 is the enlarged schematic view of point b in Fig. 2;

Fig. 5 is a transverse sectional view of the utility model blade processing auxiliary fixture;

Fig. 6 is a schematic structural diagram of the clamping block of the blade processing auxiliary fixture of the present invention;

Fig. 7 is a right side view of Fig. 6 .

Marks in the figure: 1-base, 11-chute, 12-cover plate, 13-screw hole, 2-clamping block, 21-slider, 22-convex tooth, 23-notch, 24-screw hole , 3-screw mandrel, 31-limiting groove, 32-limiting rod, 33-ring block, 4-top, 41-fixing plate, 42-elastic part, 5-blade.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example

The auxiliary jig for blade processing in this embodiment has a structure as shown in Figure 1, including a base 1, and two clamping blocks 2 for blade clamping are arranged on the end surface of the base 1, and the two clamping blocks 2 pass through the adjustment mechanism It can be adjusted and assembled on the base 1 , and a tightening mechanism for radially tightening the blades is provided between the two clamping blocks 2 of the base 1 . The concept and intention of the utility model is to use the adjustment mechanism to adjust the two clamping blocks 2 to assemble, avoiding the traditional use of multiple bolts to tighten the clamping surface of the blade to clamp the blade. Compared with the traditional clamping method, the improved clamp does not need to rely on "feeling" to tighten the screws to ensure that all clamping points are clamped tightly when in use, and has the advantage of uniform force. The linkage adjustment of the adjustment mechanism is a conventional design or structure capable of linkage.

In another specific embodiment of the present utility model, one of the designs of the adjustment mechanism is specifically described. In this embodiment, the adjustment mechanism adopts a screw rod 3 design, and the screw rod 3 is provided with two sections that are opposite to each other. thread, the two clamping blocks 2 are respectively assembled on different sections of the thread to realize linkage adjustment on the base 1, as shown in FIG. 2 .

Based on the above design, the fixture is further optimized and designed. The screw rod 3 is assembled on the base 1 through a limit mechanism. Displacement to ensure the efficiency and quality of the fixture.

A specific design of the limit mechanism is carried out below. The limit mechanism is located between two sections of threads that are opposite to each other. The limit rod 32 on the top, the limit rod 32 is assembled in the limit groove 31 to limit the position, its structure is shown in Figure 2 and Figure 3 .

Based on the design of the limiting mechanism in the above embodiment, as a further optimization and improvement, in another embodiment, there is a gap between the limiting rod 32 and the limiting groove 31 along the axial direction of the screw rod. The gap means that the width of the limit groove is greater than the width of the limit rod, so that the screw can be slightly adjusted and adapted to the left and right of the limit rod to improve the accuracy and reliability of clamping. The advantage of such a design is: in the use of the clamp in the utility model, especially for the convenience of installation, the clamp is in a vertical direction on the processing equipment (that is, one of the two clamping blocks is located at the top, and the other is located at the top) bottom), due to gravity, when the fixture tightens the bolt of the screw rod, the upper clamping block will first contact the clamping surface of the blade, continue to tighten the bolt, the upper clamping block stops moving downward, and the limit rod and the limit groove There is a gap along the axial direction of the screw rod so that the lower clamping block continues to move upward until it contacts the clamping surface. Similarly, when the jig is in the horizontal direction or other directions on the processing equipment, there may also be a micro-adjustment process similar to the above-mentioned process. Therefore, it is not difficult to see that in the fixture of the present invention, the gap between the limit rod and the limit groove along the axial direction of the screw rod is designed to further ensure that the two clamping blocks can fully contact and clamp with the blade process head, so that Further ensure the stability, accuracy and reliability of the clamping; the improved clamp does not need to rely on "feeling" to tighten the screws when using it, and can ensure that all clamping points are clamped tightly and the force is uniform; the entire installation process simplifies the number of bolt tightening, Reduce clamping time and improve production efficiency.

As a further optimization and design of the gap along the axial direction of the screw, in another specific embodiment, there is a gap between the limiting rod 32 and the limiting groove 31 along the axial direction of the screw not greater than 1.5 mm, that is: the limit The width of the groove 31 is not greater than 1.5mm compared with the limit rod 32 . Through the design principle of the gap between the limit rod and the limit groove along the axial direction of the screw rod, the gap is further designed within the range of not more than 1.5mm, and the effect achieved is: the gap can greatly reduce the blade process. The processing accuracy requirements of the head make the processing accuracy of the blade process head further expanded to a symmetry of not more than 0.75mm. Under such asymmetry range, the concentricity of the blade between the fixture and the tailstock of the machine tool after clamping can also be guaranteed. It can greatly improve the processing quality of blades. Under the design of the gap not greater than 1.5mm, the processing efficiency and processing cost of the blade process head can be effectively reduced on the premise of ensuring the clamping and processing quality of the blade, and the processing time of the process head is shortened by nearly 20%. The accuracy of the head is reduced, which reduces the accuracy requirements of the processing equipment and reduces the cost of production.

This specific embodiment also specifically discloses the assembly method of the limiting mechanism. As shown in FIG. 3 , the base 1 is equipped with an annular block 33 , and the limiting rod 32 is assembled in the limiting groove 31 through the annular block 33 . The inner diameter of the annular block 33 is adapted to the outer diameter of the screw mandrel 3 to ensure the stability of the screw mandrel 3 during rotation.

In a specific embodiment, another embodiment describes the specific assembly method of the base 1 and the clamping block 2. The base 1 is provided with a chute 11, and the clamping block 2 is adapted to the chute 11. The sliding block 21 can be reciprocally slidably assembled on the base 1 and the adjustment mechanism, and the structure is shown in Fig. 5 and Fig. 6 . Through the slidable design of the chute and the slider, the accuracy of the fixture in use is ensured, providing a guarantee for the precise and quick installation of the blade.

In order to further reduce the processing difficulty and cost of the chute 11, and effectively ensure the processing accuracy, in another specific embodiment, the chute 11 is assembled by an L-shaped groove on the base and a cover plate arranged on it. As shown in Figure 5.

Based on the combined design of the above-mentioned specific implementation methods or technical features, the present invention also specifically designs the clamping surface of the clamping block 2 . In another embodiment, the clamping surface of the clamping block 2 is provided with protruding teeth 22 protruding from the clamping surface. The purpose of this design is to improve and optimize the ability of the clamping block 2 to clamp the blade, and the clamping block 2 with the convex tooth 22 structure is the structure shown in Fig. 2 and Fig. 4 .

Further, the clamping surface of the clamping block 2 is provided with two protruding teeth 22 in the width direction. The two protruding teeth 22 use the principle similar to two points to determine a straight line, and use the design of two protruding teeth to ensure that the process head It can be fitted precisely with the two protruding teeth 22 .

As a further improvement on the design of the clamping block 2 and the convex tooth 22, in another specific embodiment, the convex tooth 22 and the clamping block 2 are of a split structure, and the convex tooth 22 is set in a manner that can rotate on the clamping surface on the clamping block 2. The purpose of this design is: when the clamping surface formed by the convex teeth is not on the same plane or the clamping surface of the blade process head is uneven, after a certain point on the convex tooth contacts the workpiece, the convex tooth can rotate under the action of force By adjusting the angle to ensure that the contact area between the convex teeth and the workpiece is large enough, it can effectively ensure and further improve the effectiveness of the final clamping surface and clamping force of the blade, and finally ensure the stability of the blade during processing. The specific design is that there is a circular hole in the clamping block 2, and the main body of the convex tooth 22 is a cylindrical structure adapted to the circular hole, and the convex tooth 22 is arranged on the cylinder, and the cylinder is assembled in the clamping block 2 to Rotate to adjust the angle between the convex teeth 22 and the clamping surface.

In another embodiment, the design of the clamping block 2 is further optimized, the outer end of the clamping block is provided with an L-shaped notch, and the protruding teeth 22 are arranged on the L-shaped notch of the clamping block. The L-shaped notch provided on the outer end of the clamping surface of the clamping block 2 can be used to accommodate the process head of the blade, and can also function as a radial stop to ensure the reliability of the clamping process.

The specific structure of the clamping block 2 is shown in FIG. 6 and FIG. 7 , and its assembly on the base 1 is shown in FIG. 2 and FIG. 5 .

In the blade processing auxiliary fixture of the present utility model, the tightening mechanism, as a device for radially tightening the blade, may be the tip 4 directly arranged on the base. However, the specific setting method in this embodiment is: the top 4 is arranged between the clamping blocks 2 of the base 1 through a fixed plate 41, the top 4 is directly connected with the fixed plate 41, and the fixed plate 41 is passed through The elastic member 42 is assembled on the base 1 so that the tip 4 can realize the floating capability, and the structure is shown in FIG. 5 .

In the blade processing auxiliary fixture of the utility model, after the blade 5 is assembled in the fixture, as shown in FIG. 1 , the assembly or disassembly of the blade 5 is realized only by adjusting the lead screw 3 in the whole operation. In addition, the base 1 is also provided with screw holes 13 for connection and installation with processing equipment, as shown in FIG. 2 .

The blade processing auxiliary fixture of the utility model is a blade processing auxiliary workpiece with fast blade clamping operation, high clamping reliability, and high clamping process precision, which can improve the convenience of blade processing and ensure the accuracy of blade processing. High precision. In particular, the gap design between the limit rod and the limit groove along the axial direction of the screw rod brings positive effects of reducing the machining accuracy requirements of the blade process head and reduces the blade processing cost. Thanks to the overall structural design of the fixture, accurate and reliable clamping of the blade is realized on the basis of quick operation, which greatly improves the processing efficiency and precision of the blade. Compared with the traditional clamping method, the average clamping time is saved by nearly 70% after adopting the clamp of the utility model, which effectively saves the production cost, and the machining accuracy of the blade is also improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. An auxiliary fixture for blade processing, characterized in that it includes a base (1), the end surface of the base (1) is provided with two clamping blocks (2) for blade clamping, and the two clamping blocks ( 2) It can be adjusted and assembled on the base (1) through the adjustment mechanism, and a tightening mechanism for radially tightening the blades is also provided between the two clamping blocks (2) of the base (1). 2. The auxiliary jig for blade processing according to claim 1, characterized in that: the adjustment mechanism is a screw (3), and the screw (3) is provided with two sections of threads that are opposite to each other, and the two clamps The holding blocks (2) are respectively assembled on threads of different sections to realize linkage adjustment on the base (1). 3. The blade processing auxiliary jig according to claim 2, characterized in that: the screw rod (3) is assembled on the base (1) through a limit mechanism. 4. The blade processing auxiliary jig according to claim 3, characterized in that: the position limiting mechanism is located between two sections of threads that are opposite to each other, and includes a limit groove ( 31), and a limit rod (32) arranged on the base (1), the limit rod (32) is assembled in the limit groove (31) for limit. 5. The blade processing auxiliary jig according to claim 4, characterized in that there is a gap along the axial direction of the screw rod between the limiting rod (32) and the limiting groove (31). 6. The blade processing auxiliary jig according to claim 1, characterized in that: the base (1) is provided with a chute (11), and the clamping block (2) fits the chute (11) The matching slider (21) can be reciprocally slidably assembled on the base (1) and the adjustment mechanism. 7. The blade processing auxiliary jig according to claim 1, characterized in that: the clamping surface of the clamping block (2) is provided with protruding teeth (22) protruding from the clamping surface. 8 . The blade processing auxiliary jig according to claim 7 , characterized in that two protruding teeth ( 22 ) are provided in the width direction of the clamping surface of the clamping block ( 2 ). 9. The blade processing auxiliary jig according to claim 7, characterized in that: the convex teeth (22) and the clamping block (2) are of a split structure, and the convex teeth (22) can be placed on the clamping surface The way of rotation is set on the clamping block (2). 10. The auxiliary jig for blade processing according to claim 1, characterized in that: the clamping mechanism is a top (4) mounted on the base (1), and the top (4) can be mounted on the on the base (1).