Machining tool for asymmetric rotary disc part

Abstract

The utility model provides an asymmetric rotary disc part machining tool which comprises a bottom plate, a fixing seat is correspondingly arranged in the middle of the bottom plate, and a positioning assembly is correspondingly arranged on the fixing seat and used for positioning and placing a workpiece. Multiple sets of lifting elements are correspondingly arranged on the periphery of the fixing base, the bottoms of the lifting elements are correspondingly installed on the bottom plate, pressing plates are correspondingly installed at the telescopic ends of the tops of the lifting elements, one ends of the pressing plates are correspondingly installed at the tops of the telescopic ends of the lifting elements in a hinged mode, and connecting rods are installed in the middles of the pressing plates in a hinged mode; the other end of the connecting rod is correspondingly hinged to a cylinder body of a lifting element below the connecting rod; when the lifting element is started, the other ends of the pressing plates correspondingly press the workpiece pressing face on the edge of the top of the workpiece, and the workpiece is pressed and fixed through the multiple pressing plates. According to the utility model, the clamping efficiency and the positioning precision are improved, the process difficulty is reduced, and the processing size consistency of batch products is ensured.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to a kind of non-symmetrical rotary disc part mechanical processing field, in particular to a kind of quick clamping and anti-reverse design's mechanical processing frock. BACKGROUND

[0002] At present, in the milling process in the field of mechanical processing, part clamping, positioning usually adopts the following methods:

[0003] I, plate clamping: for the workpiece of larger shape size or inconvenient to use machine vice clamping, commonly used plate is installed on the milling machine workbench surface to process, and the plate is pressed tightly on the workbench surface by T-shaped bolt, nut and step pad iron. This positioning method has higher requirements for pressing position, pad iron selection and bolt pressing force uniformity, and has high requirements for operator's ability; the pressing position may interfere with the working tool, and the machining needs to be completed by secondary clamping; the workpiece repeated positioning is difficult to guarantee, and the workpiece size consistency is poor in batch production.

[0004] II, flat tongs clamping: for the simple shape of small and medium-sized workpiece, machine tool flat tongs can be used to directly clamp the workpiece. This positioning method has certain requirements for the shape of workpiece; it is easy to produce clamping marks on the surface of workpiece; it cannot be repeatedly positioned, and the workpiece size consistency is poor in batch production.

[0005] III, index head or chuck: the index head or chuck is fixed on the milling machine workbench surface, and the workpiece is clamped. This positioning method requires higher machine tool, and needs index head or chuck installation space and interface.

[0006] IV, toggle clamp: toggle clamp is fixed on the milling machine workbench or frock bottom plate, and the part is placed and locked by toggle clamp. The positioning method has poor repeatability; at the same time, the clamping position of toggle clamp may interfere with the working tool, and the machining needs to be completed by secondary clamping.

[0007] V, vacuum chuck, magnetic chuck: through the negative pressure or magnetic force acting on the workpiece, to achieve the purpose of clamping and fixing. This positioning method is suitable for specific part structure and material, and has poor universal applicability.

[0008] VI, adhesive: the workpiece is adhered to the milling machine workbench surface or frock bottom plate by glue. The positioning method has low production efficiency; the thickness of adhesive has great influence on machining accuracy; the reliability of adhesive cannot be guaranteed, and the unloading is troublesome.

[0009] Based on the above situation, it is necessary to propose a new mechanical processing frock, so as to be better applicable to the mechanical processing of non-symmetrical rotary disc parts.

[0010] It should be noted that the above content belongs to the technical cognition of the inventor, and due to the vast and complex technical content in the art, the above content of the present application does not necessarily constitute the prior art. Utility model content

[0011] 1. Technical problem to be solved by the utility model:

[0012] The utility model provides a kind of asymmetric rotary disc part mechanical processing frock, improves clamping efficiency and positioning accuracy, reduces the process difficulty, guarantees the machining size consistency of batch product, and better solves the clamping difficulty big, repeated positioning accuracy poor, process efficiency low and other problems generated by traditional clamping, positioning mode.

[0013] 2. Technical scheme:

[0014] To achieve the above object, the technical scheme provided by the utility model is as follows: a kind of asymmetric rotary disc part mechanical processing frock, including bottom plate, the middle part of the bottom plate is provided with fixed seat, the fixed seat is provided with positioning assembly on the corresponding position, for positioning and placing workpiece;The periphery of the fixed seat is provided with multiple groups of lifting elements, the bottom of the lifting element is correspondingly installed on the bottom plate, the telescopic end on the top of the lifting element is correspondingly provided with pressing plate, one end of the pressing plate is hingedly installed on the top of the telescopic end of the lifting element, the middle part of the pressing plate is hingedly installed with connecting rod, the other end of the connecting rod is hingedly installed on the cylinder of the lifting element below it;Start lifting element, the other end of the pressing plate will be correspondingly pressed on the workpiece pressing surface at the edge of the top of workpiece, and the workpiece is fixed by multiple pressing plates.

[0015] Further, the positioning assembly includes a first frock positioning pin and a second frock positioning pin, the first frock positioning pin and the second frock positioning pin are respectively arranged on both sides of the top of the fixed seat;The bottom of the workpiece is respectively provided with a first workpiece positioning pin hole and a second workpiece positioning pin hole, the positions of the first and second frock positioning pins are respectively corresponding to the positions of the first and second workpiece positioning pin holes;When installing, the first frock positioning pin is inserted into the first workpiece positioning pin hole, and the second frock positioning pin is inserted into the second workpiece positioning pin hole.

[0016] Further, one side of the bottom of the workpiece is correspondingly provided with workpiece boss feature;The positioning assembly further includes anti-reverse boss, and the anti-reverse boss is arranged at the corresponding position on one side of the top of the fixed seat;When the first and second frock positioning pins are respectively inserted into the second and first workpiece positioning pin holes, the anti-reverse boss contacts the workpiece boss feature, the bottom surface of the workpiece cannot contact the top of the fixed seat, and the workpiece is installed incorrectly;When the first and second frock positioning pins are respectively inserted into the first and second workpiece positioning pin holes, the anti-reverse boss is misaligned with the workpiece boss feature, the bottom surface of the workpiece contacts the top of the fixed seat, and the workpiece is installed correctly.

[0017] Further, the lifting element specifically adopts a compression cylinder, and the air source pressure is controlled at 0.4-0.5 MPa.

[0018] Further, three groups of lifting elements are arranged around the fixing base and are evenly distributed along the circumferential direction of the fixing base.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the technical scheme has the following beneficial effects:

[0021] The utility model discloses a special clamping and positioning tool, adopts cylinder compression and pin positioning, in actual operation process, after the machining tool fixing is completed, the workpiece installation and dismounting process only needs to complete "cleaning places starting cylinder relaxes cylinder takes out workpiece cleaning" step, and the automation degree is high, and the operation is convenient and simple, and the efficiency is high, and the cylinder clamping force is even, and the clamping effect is stable and reliable, avoids the frequent occurrence of loose bolt, adjusting pad and other operations in the remaining clamping and positioning method, improves the clamping efficiency and positioning accuracy, reduces the process difficulty, guarantees the consistency of batch product machining size, effectively solves the problems of big clamping difficulty, poor repeated positioning accuracy and low process efficiency produced in traditional clamping and positioning mode, and the whole design is simple and ingenious, and the use is flexible and convenient, and the practicality is strong.

[0022] It should be noted that the structures not introduced in the utility model are the same as or can be realized by the prior art, and do not involve the design points and improvement direction of the utility model, and are not described here. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the machining tool of the utility model;

[0024] Figure 2 It is a top view structural schematic diagram of the machining tool of the utility model;

[0025] Figure 3 It is a top view structural schematic diagram of the workpiece of the utility model;

[0026] Figure 4 It is a bottom view structural schematic diagram of the workpiece of the utility model.

[0027] REFERENCE SIGNS:

[0028] 1, bottom plate; 2, fixed plate; 3, compression cylinder; 4, pressing plate; 5, connecting rod; 6, first tool positioning pin; 7, second tool positioning pin; 8, anti-reverse boss; 9, workpiece; 901, workpiece pressing surface; 902, first workpiece positioning pin hole; 903, second workpiece positioning pin hole; 904, workpiece boss feature. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description. Therefore, it cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0033] Referring to the accompanying Figures 1-4The non-symmetrical rotary disc part machining tool of the embodiment comprises a bottom plate 1, a fixing seat 2 is arranged at the middle part of the bottom plate 1, a positioning assembly is arranged on the fixing seat 2, and the positioning assembly is used for positioning and placing a workpiece 9. A plurality of groups of lifting elements are arranged around the fixing seat 2, in particular to the embodiment, according to the specific structure of the workpiece 9, three groups of lifting elements can be arranged around the fixing seat 2, and the three groups of lifting elements are uniformly distributed along the circumferential direction of the fixing seat 2. The bottom part of the lifting element is correspondingly mounted on the bottom plate 1, a pressing plate 4 is correspondingly mounted on the telescopic end of the top part of the lifting element, one end of the pressing plate 4 is correspondingly hingedly mounted on the top part of the telescopic end of the lifting element, a connecting rod 5 is hingedly mounted on the middle part of the pressing plate 4, and the other end of the connecting rod 5 is correspondingly hingedly mounted on the cylinder body of the lifting element below. When the lifting element is started, the other end of the pressing plate 4 is correspondingly pressed on the workpiece pressing surface 901 at the top edge of the workpiece 9, and the workpiece 9 is pressed and fixed through a plurality of pressing plates 4.

[0034] Specifically, the positioning assembly comprises a first tool positioning pin 6 and a second tool positioning pin 7, and the first tool positioning pin 6 and the second tool positioning pin 7 are respectively arranged on the two sides of the top part of the fixing seat 2. The bottom part of the workpiece 9 is correspondingly provided with a first workpiece positioning pin hole 902 and a second workpiece positioning pin hole 903, and the positions of the first tool positioning pin and the second tool positioning pin correspond to the positions of the first workpiece positioning pin hole and the second workpiece positioning pin hole. During installation, the first tool positioning pin 6 is correspondingly inserted into the first workpiece positioning pin hole 902, and the second tool positioning pin 7 is correspondingly inserted into the second workpiece positioning pin hole 903.

[0035] One side of the bottom part of the workpiece 9 is correspondingly provided with a workpiece boss feature 904. The positioning assembly further comprises an anti-reverse boss 8, and the anti-reverse boss 8 is arranged at the corresponding position on one side of the top part of the fixing seat 2. When the first tool positioning pin and the second tool positioning pin are respectively inserted into the second workpiece positioning pin hole and the first workpiece positioning pin hole, the anti-reverse boss 8 is in contact with the workpiece boss feature 904, the bottom surface of the workpiece 9 cannot be in contact with the top part of the fixing seat 2, and the workpiece is installed incorrectly. When the first tool positioning pin and the second tool positioning pin are respectively inserted into the first workpiece positioning pin hole and the second workpiece positioning pin hole, the anti-reverse boss 8 is misaligned with the workpiece boss feature 904, the bottom surface of the workpiece 9 is in contact with the top part of the fixing seat 2, and the workpiece 9 is installed correctly. In the tool design of the embodiment, the anti-reverse boss 8 is added as an anti-reverse design, which avoids the processing failure caused by the reverse installation of the workpiece 9 in the processing process.

[0036] The lifting element can specifically adopt an existing pressing cylinder 3, one end of the connecting rod 5 is correspondingly hingedly connected with the middle part of the pressing plate 4, and the other end of the connecting rod 5 is correspondingly hingedly mounted on the top part of the cylinder body of the pressing cylinder 3 below.

[0037] In work, the bottom plate 1 is placed on the milling machine workbench surface, and is locked by screw after leveling; the pressure cylinder 3 gas source is connected, and the pressure cylinder 3 is debugged; the three pressure cylinders 3 are relaxed, so that the three pressing plates 4 are at the high point; the workpiece 9 is placed on the top of the fixed seat 2, so that the first tool positioning pin 6 is inserted into the first workpiece positioning pin hole 902, the second tool positioning pin 7 is inserted into the second workpiece positioning pin hole 903, and the bottom surface of the workpiece 9 is in close contact with the top of the fixed seat 2; then the three pressure cylinders 3 are started, so that the extension end is extended, the front end of the three pressing plates 4 is pressed on the workpiece pressing surface 901 at the edge of the top of the workpiece 9, the gas source pressure is controlled at 0.4-0.5MPa, and the workpiece 9 is pressed; the milling machine is started, the tool is set after completion, and the machining program is executed; after machining is completed, the three pressure cylinders 3 are relaxed, so that the three pressing plates 4 are at the high point again, the workpiece 9 is taken out, the tool table surface is cleaned, and the next workpiece 9 to be machined can be installed. It should be pointed out that the parts machined by the machining tool are generally asymmetric rotary disc parts, and in the embodiment, the disc parts such as rear protective covers can be machined.

[0038] The above-described embodiments only express certain implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent; it should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model; therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An asymmetric rotary disc part machining tooling, characterized by: The utility model provides a workpiece press -tight fixing device, including bottom plate (1), the middle part of bottom plate (1) is correspondingly equipped with fixed seat (2), correspondingly is equipped with positioning assembly on fixed seat (2), for positioning and placing workpiece (9), the periphery of fixed seat (2) is correspondingly equipped with multiple sets of lifting element, the bottom of lifting element is correspondingly installed on bottom plate (1), the telescopic end on the top of lifting element is correspondingly installed with pressing plate (4), one end of pressing plate (4) is correspondingly articulatedly installed on the telescopic end top of lifting element, the middle part of pressing plate (4) is articulatedly installed with connecting rod (5), the other end of connecting rod (5) is correspondingly articulatedly installed on the cylinder of lifting element below it, start lifting element, the other end of pressing plate (4) will be correspondingly pressed on the workpiece press -tight surface (901) at the top edge of workpiece (9), and multiple pressing plates (4) realize workpiece (9) press -tight fixing.

2. The non-symmetrical rotary disc part machining tooling fixture of claim 1, wherein: The positioning assembly includes a first tool positioning pin (6) and a second tool positioning pin (7), which are respectively arranged on the top of the fixed seat (2) on both sides. The bottom of the workpiece (9) is respectively provided with a first workpiece positioning hole (902) and a second workpiece positioning hole (903). The positions of the first and second tool positioning pins correspond to the positions of the first and second workpiece positioning holes, respectively. During installation, the first tool positioning pin (6) is inserted into the first workpiece positioning hole (902), and the second tool positioning pin (7) is inserted into the second workpiece positioning hole (903).

3. The non-symmetrical rotary disc part machining tooling fixture of claim 2, wherein: The bottom of the workpiece (9) is provided with a workpiece boss feature (904) on one side. The positioning assembly further includes an anti-reverse boss (8) arranged on the corresponding position on one side of the top of the fixed seat (2). When the first and second tool positioning pins are respectively inserted into the second and first workpiece positioning holes, the anti-reverse boss (8) is in contact with the workpiece boss feature (904), the bottom surface of the workpiece (9) cannot contact the top of the fixed seat (2), and the workpiece is installed incorrectly. When the first and second tool positioning pins are respectively inserted into the first and second workpiece positioning holes, the anti-reverse boss (8) is misaligned with the workpiece boss feature (904), the bottom surface of the workpiece (9) is in contact with the top of the fixed seat (2), and the workpiece (9) is installed correctly.

4. The non-symmetrical rotary disc part machining tooling fixture of claim 1, wherein: The lifting element specifically adopts a pressurized cylinder (3) with a gas source pressure controlled at 0.4-0.5 MPa.

5. The non-symmetrical rotary disc part machining tooling fixture of claim 1, wherein: The fixed seat (2) is provided with three sets of lifting elements around it, which are evenly distributed along the circumferential direction of the fixed seat (2).

Images