A trident type part boring and milling clamp

Abstract

The utility model discloses a kind of three-pronged parts boring and milling clamps, including base, locating block, left oil cylinder, intermediate oil cylinder and right oil cylinder, be provided with vertical plate on base, left positioning ring and right positioning ring for clamping part are set up at interval on vertical plate, and intermediate oil cylinder is installed on the vertical plate between left positioning ring and right positioning ring, the output end of intermediate oil cylinder is connected with pressing plate, left oil cylinder is installed on the left side vertical plate of left positioning ring, right oil cylinder is installed on the right side vertical plate of right positioning ring;Right oil cylinder and left oil cylinder include cylinder body and piston rod.The utility model is corrected to part simultaneously, clamps part, guarantees the positioning accuracy of part, need not to increase additional correction device, while tooling uses internal oil circuit, appearance is simple, prevent misoperation from causing oil circuit damage, and it can be realized in a process to complete the processing to ear hole and inner profile, guarantee the accuracy of part shape tolerance, eliminate the defective product caused by secondary positioning error.

Description

Technical Field

[0001] This utility model relates to the field of parts processing fixtures, and more specifically, to a three-pronged parts boring and milling fixture. Background Technology

[0002] Tooling fixtures are process devices used during machining to quickly secure workpieces and maintain the correct relative positions of machine tools, cutting tools, and workpieces. Tooling fixtures are indispensable components in machining. Driven by the development of machine tool technology towards high speed, high efficiency, precision, composite, intelligent, and environmentally friendly directions, fixture technology is developing towards high precision, high efficiency, modularity, combination, versatility, and economy.

[0003] A fixture typically consists of positioning elements that determine the correct position of the workpiece within the fixture, clamping devices, tool setting and guiding elements that determine the relative position of the tool and the workpiece or guide the direction of the tool, enabling the workpiece to complete machining at several stations in a single setup, indexing devices (which can be either rotary or linear), connecting elements, and the fixture body.

[0004] During the assembly of the parts, the ear holes of the parts have the following requirements for the inner stop surface and the outer circle:

[0005] (1) Since the snap ring is installed on the inner side, the perpendicularity of the inner side to the ear hole axis is required to be no greater than 0.05, and the symmetry of the outer circle or tooth center is required to be no greater than 0.05.

[0006] (2) Because the previous process was completed in two steps (boring the ear hole and milling the inner stop surface), the second clamping had positioning errors, which caused the form and position tolerances of the parts to be not fully guaranteed. Utility Model Content

[0007] This utility model provides a boring and milling fixture for three-pronged parts to solve the problem that existing fixtures cannot fully guarantee the form and position tolerances of parts.

[0008] According to one aspect of this utility model, a three-pronged part boring and milling fixture is provided, comprising a base, a positioning block, a left hydraulic cylinder, a middle hydraulic cylinder, and a right hydraulic cylinder. A vertical plate is provided on the base, and left and right positioning rings for clamping parts are spaced apart on the vertical plate. The middle hydraulic cylinder is mounted on the vertical plate between the left and right positioning rings, and a pressure plate is connected to the output end of the middle hydraulic cylinder. The left hydraulic cylinder is mounted on the left side vertical plate of the left positioning ring, and the right hydraulic cylinder is mounted on the right side vertical plate of the right positioning ring. The device includes a cylinder body and a piston rod. The piston rod is movably mounted in the cylinder body. The cylinder body has ear plates spaced apart at its ends. A transition plate is hinged between the ear plates. A pressure claw is hinged to the end of the piston rod. The pressure claw is hinged to the transition plate and has a mounting hole. A slider adapted to the mounting hole is provided on the positioning block. An adjustment hole is provided at the end of the slider. A pin for mounting a spring is fitted inside the adjustment hole. The ends of the slider and the pressure claw are connected by an end plate. The pin passes through the end plate.

[0009] Based on the above scheme, the vertical plate is preferably equipped with a support block located below the left and right positioning rings.

[0010] Based on the above scheme, preferably, the upright plate is provided with oil circuits that supply oil to the left oil cylinder, the middle oil cylinder and the right oil cylinder.

[0011] Based on the above scheme, the intermediate hydraulic cylinder is preferably a rotary hydraulic cylinder.

[0012] Based on the above scheme, preferably, the cylinder body includes a body and an end cap. The body has a cavity that is sealed by the end cap. The body extends outward from the side opposite to the end cap to form the ear plate. The ear plates are spaced apart and have adapter holes. A rotating shaft connected to the adapter plate is inserted into the adapter hole.

[0013] This utility model discloses a three-pronged part boring and milling fixture that clamps the part while correcting it, ensuring the part's positioning accuracy without the need for additional correction devices. The fixture also features an internal oil circuit, a simple appearance, and prevents damage to the oil circuit due to misoperation. Simultaneously, it enables the machining of the ear hole and inner stop surface in one process, ensuring the accuracy of the part's form and position tolerances and eliminating defective products caused by secondary positioning errors. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0015] Figure 1 This is a front view of the boring and milling fixture for three-pronged parts according to this utility model;

[0016] Figure 2 This is a top view of the boring and milling fixture for three-pronged parts according to this utility model;

[0017] Figure 3 This is a left view of the boring and milling fixture for three-pronged parts according to this utility model;

[0018] Figure 4 This is a structural diagram of the positioning block of this utility model;

[0019] Figure 5 This is a cross-sectional view of the positioning block of this utility model;

[0020] Figure 6 This is a partial cross-sectional view of the pressure claw of this utility model;

[0021] Figure 7 This is a structural diagram of the pressure claw of this utility model;

[0022] Figure 8 This is a structural diagram of the cylinder body of this utility model;

[0023] Explanation of icon numbers:

[0024] 1. Base; 11. Vertical plate; 12. Oil circuit; 2. Positioning block; 21. Slider; 22. Adjustment hole; 23. Spring; 24. Pin; 25. End plate; 3. Left cylinder; 4. Middle cylinder; 41. Pressure plate; 5. Right cylinder; 6. Left positioning ring; 7. Right positioning ring; 8. Support block; 51. Cylinder body; 52. Main body; 53. End cover; 54. Ear plate; 55. Piston rod; 56. Adapter plate; 9. Pressure claw; 91. Mounting hole. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0027] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0028] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0032] Please see Figure 1 and combined Figure 2 and Figure 3 As shown, the present invention provides a three-pronged part boring and milling fixture, comprising a base 1, a positioning block 2, a left hydraulic cylinder 3, a middle hydraulic cylinder 4, and a right hydraulic cylinder 5.

[0033] The base 1 of this utility model is provided with a vertical plate 11. A left positioning ring 6 and a right positioning ring 7 for clamping parts are spaced apart on the vertical plate 11. To accommodate the processing of different parts, the left positioning ring 6 and the right positioning ring 7 are preferably designed as detachable mounting structures from the vertical plate 11. Parts can be switched by quickly changing the positioning rings according to the type of product being processed. The left positioning ring 6 is designed for toothed parts, and the right positioning ring 7 is designed for non-toothed parts to meet different processing needs.

[0034] The left cylinder 3 is mounted on the left side plate 11 of the left positioning ring 6, and the right cylinder 5 is mounted on the right side plate 11 of the right positioning ring 7. Specifically, the right cylinder 5 and the left cylinder 3 include a cylinder body 51 and a piston rod 55. The piston rod is movably mounted inside the cylinder body 51. The end of the cylinder body 51 is provided with ear plates 54 arranged at relatively intervals. A transition plate 56 is hinged between the ear plates 54. The end of the piston rod is hinged with a pressure claw 9, which is hinged to the transition plate 56. The pressure claw 9 is provided with a mounting hole 91. The positioning block 2 is provided with a slider 21 that matches the mounting hole 91. The end of the slider 21 is provided with an adjustment hole 22. A pin 24 for mounting spring 23 is sleeved inside the adjustment hole 22. The ends of the slider 21 and the pressure claw 9 are connected by an end plate 25. The pin 24 passes through the end plate 25. For the specific structure, please refer to [link to specific details]. Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown.

[0035] During operation, the parts to be processed are clamped by the left positioning ring 6 and the right positioning ring 7. The left and right hydraulic cylinders 3 and 5 work together to drive the positioning block 2 to press and release the parts mounted on the left and right positioning rings 6 and 7. The piston rod moves up and down, causing the pressure claw 9 to rotate, allowing the positioning block 2 to slide within the mounting hole 91. The compression force of the spring 23 is used to correct the parts. When the hydraulic cylinders are released, the spring force of the spring 23 ensures that the positioning block 2 automatically springs back. The positioning block 2 has adjusting bolts at both the left and right ends, allowing its position to be adjusted according to different part sizes. When the piston rod drives the pressure claw 9 to extend outwards, the positioning block 2 first contacts and corrects the parts, and then the pressure claw 9 on the positioning block 2 presses the parts firmly.

[0036] It is worth noting that, in order to ensure the clamping stability of the parts, the intermediate hydraulic cylinder 4 is mounted on the vertical plate 11 between the left positioning ring 6 and the right positioning ring 7. The output end of the intermediate hydraulic cylinder 4 is connected to the pressure plate 41, and the intermediate hydraulic cylinder 4 is a rotary hydraulic cylinder. The rotary hydraulic cylinder can drive the intermediate pressure plate 41 to rotate, so as to meet the adaptive clamping of different shapes of the parts processed on both sides.

[0037] In order to provide auxiliary support for the parts during clamping and to prevent the parts from falling off when releasing, the upright plate 11 of this utility model is also equipped with a support block 8 located below the left positioning ring 6 and the right positioning ring 7.

[0038] Please continue reading. Figure 3 As shown, the upright plate 11 of this utility model is provided with an oil passage 12 that supplies oil to the left oil cylinder 3, the middle oil cylinder 4 and the right oil cylinder 5, so as to ensure a simple appearance and prevent damage to the oil passage 12 due to misoperation.

[0039] Please continue reading. Figure 8 As shown, the cylinder body 51 of this utility model includes a body 52 and an end cap 53. The body 52 is provided with a cavity and is sealed by the end cap 53. The body 52 extends outward from the side opposite to the end cap 53 to form the ear plate 54. The ear plates 54 are spaced apart and are provided with a transition hole. A rotating shaft connected to the transition plate 56 is inserted into the transition hole.

[0040] This utility model discloses a three-pronged part boring and milling fixture that clamps the part while correcting it, ensuring the part's positioning accuracy without the need for additional correction devices. The fixture also features an internal oil circuit 12, which has a simple appearance and prevents damage to the oil circuit 12 due to misoperation. At the same time, it enables the machining of the ear hole and inner stop surface to be completed in one process, ensuring the accuracy of the part's form and position tolerances and eliminating defective products caused by secondary positioning errors.

[0041] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A boring and milling fixture for three-pronged parts, characterized in that, The system includes a base, a positioning block, a left hydraulic cylinder, a middle hydraulic cylinder, and a right hydraulic cylinder. A vertical plate is mounted on the base, and left and right positioning rings for clamping parts are spaced apart on the vertical plate. The middle hydraulic cylinder is mounted on the vertical plate between the left and right positioning rings, and its output end is connected to a pressure plate. The left hydraulic cylinder is mounted on the left side of the vertical plate of the left positioning ring, and the right hydraulic cylinder is mounted on the right side of the vertical plate of the right positioning ring. Both the right and left hydraulic cylinders include cylinder bodies and piston rods. The piston rod is movably mounted in the cylinder body. The cylinder body has ear plates that are spaced apart from each other at its end. A transition plate is hinged between the ear plates. The piston rod has a pressure claw hinged to its end. The pressure claw is hinged to the transition plate and has a mounting hole. The positioning block has a slider that matches the mounting hole. The slider has an adjustment hole at its end. A pin for mounting a spring is fitted inside the adjustment hole. The ends of the slider and the pressure claw are connected by an end plate. The pin passes through the end plate.

2. The boring and milling fixture for three-pronged parts as described in claim 1, characterized in that, The upright plate is also equipped with a support block located below the left and right positioning rings.

3. A boring and milling fixture for three-pronged parts as described in claim 1, characterized in that, The upright plate is provided with oil passages that supply oil to the left, middle and right oil cylinders.

4. A boring and milling fixture for three-pronged parts as described in claim 1, characterized in that, The intermediate hydraulic cylinder is a corner hydraulic cylinder.

5. A boring and milling fixture for three-pronged parts as described in claim 1, characterized in that, The cylinder body includes a body and an end cap. The body has a cavity that is sealed by the end cap. The body extends outward from the side opposite to the end cap to form the ear plate. The ear plates are spaced apart and have adapter holes. A rotating shaft connected to the adapter plate is inserted into the adapter hole.

Images