Milling clamp for lifting lug type connecting piece

Abstract

The milling clamp for the lifting lug type connecting piece comprises a base, a positioning block device, a clamping device and an auxiliary device, the fixture body is light and compact in structure, low in machining cost and reliable in work, has the advantages of being accurate in positioning, rapid in clamping and the like for a workpiece needing to be subjected to connecting piece milling, avoids the problem of repeated clamping and alignment in the workpiece machining process, reduces the influence of reference misalignment and machining precision caused by machining of different positions of the same workpiece, and improves the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical manufacturing process technical field relates to a kind of milling fixture of lug type connecting piece, for the positioning clamping of lug type connecting piece when in numerical control center processing. BACKGROUND

[0002] Numerical control machine tool is one of the commonly used equipment in mechanical and electrical field, and is an important equipment for machining mechanical parts. Numerical control machine tool fixture is a device used for positioning, clamping workpieces and guiding tools on the machine tool. Its function is to position the workpiece to obtain the correct position of the workpiece relative to the machine tool and the tool, and to reliably clamp the workpiece. Due to the flexibility of numerical control machine tool, by changing numerical control program, it can be suitable for machining various different specifications of workpieces.

[0003] Machine tool fixture is specially designed for a certain part product process, and belongs to non-standard device, which often needs to be designed and manufactured according to product structure characteristics, production conditions and actual needs. When machining different features of the same workpiece, the clamping method of the workpiece often needs to be changed to meet the machining requirements. However, the frequent replacement of fixture operation process is very troublesome, which directly affects the production efficiency and machining cost.

[0004] Therefore, a new milling fixture for lug type connecting piece is designed to solve the problem of quick clamping and accurate positioning of such parts in numerical control machine tool. SUMMARY

[0005] The utility model provides a kind of milling fixture for lug type connecting piece, solve the problem of quick clamping and accurate positioning of lug type connecting piece in existing numerical control processing. Ensure the quality of product while improving the efficiency of production, improve the labor intensity of worker, reduce production cost.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A kind of milling fixture for lug type connecting piece includes: base 1, positioning block device, clamping device, auxiliary device;Specifically includes: base 1, L-shaped cushion block 2, rectangular slide 3, push rod 4, fixed block 5, spring 6, support block 7, drill jig plate 8, drill bushing 9, clamping plate 10, cushion block 11, screw 12, nut 13, cylindrical pin 14;Base 1 is fixedly connected with the workbench of milling machine, and base 1 is designed with two U-shaped waist grooves;L-shaped cushion block 2 is fixedly connected with base 1 by screw 12.

[0008] Clamping device includes: rectangular slide 3, push rod 4, fixed block 5, spring 6 and clamping plate 10, clamping device is fixedly connected with base 1, and fixed block 5 is fixedly connected with base 1 by screw 12;Clamping plate 10 is fixedly connected with base 1 by nut 13 and cylindrical pin 14.

[0009] The auxiliary device includes: support block 7, drill template 8, and drill sleeve 9; the support block 7 and the drill template 8 are fixedly connected by two screws 12, and the support block 7 is fixedly connected to the base 1 by using screws 12.

[0010] This utility model proposes a pneumatic milling fixture for lug-type connectors, which has the advantages of accurate positioning and reliable clamping. It avoids the problem of inefficient repetitive manual scribing, alignment and clamping of lug-type connectors, and reduces the impact of datum non-coincidence and low machining accuracy caused by multiple clamping of the same workpiece due to machining different positions. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the present invention;

[0012] Figure 2 This is a working diagram showing the horizontal position of this utility model;

[0013] Figure 3 This is a working diagram showing the vertical position of this utility model. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 A milling fixture for a lug-type connector. It includes a base 1, a positioning block device, a clamping device, and an auxiliary device.

[0016] The workpiece is initially positioned using its overall lower plane, L-shaped pad 2, and pad 11. Then, the workpiece is precisely positioned using its inner arc surface and rectangular slider 3. Finally, the workpiece is clamped onto the fixture by the clamping plate 10.

[0017] like Figure 1 The base 1 is fixedly connected to the milling machine's worktable. The base 1 is designed with two U-shaped grooves. The L-shaped pad 2 is fixedly connected to the base 1. The positioning block 5 is fixedly connected to the base 1 by two screws 12. The base 1 is used to provide overall support and stability for the fixture, ensuring its levelness and firmness. It is the foundation of the entire fixture device.

[0018] like Figure 2 The auxiliary device includes a support block 7, a drill template 8, and a drill sleeve 9. The drill template 8 and the support block 7 are fixedly connected by screws 12. The support block 7 is fixedly connected to the base 1 by the screws 12 to achieve the auxiliary function and check whether its position is aligned with the workpiece processing requirements. A torque wrench is used to ensure that the clamping force of the screws 12 is uniform and moderate, so as not to damage the workpiece or cause insufficient clamping force.

[0019] like Figure 3, clamping device includes rectangular slider 3, push rod 4, fixed block 5, spring 6 and clamping plate 10; the clamping device is fixedly connected with the base 1, the fixed block 5 is used to preliminarily determine the position of the workpiece, and the next step is prepared; the clamping plate 10 is fixedly connected with the base 1 through the nut 13 and the cylindrical pin 14, and the workpiece 15 can be clamped by adjusting the position of the clamping plate; a spring 6 is sleeved outside the push rod 4 between the rectangular slider 3 and the fixed block 5, the accurate positioning of the workpiece 15 can be realized by adjusting different positions of the push rod, and the machining precision is ensured.

[0020] In the milling clamp using the lug type connector, the workpiece 15 is horizontally placed on the L-shaped cushion block 2 and the cushion block 11 through the U-shaped waist groove fixedly installed on the milling machine workbench, the clamping of the workpiece 15 is realized by adjusting the clamping device, the accurate positioning of the workpiece 15 can be realized through the push rod 4 and the spring 6, and the clamping of the workpiece 15 is realized through the clamping plate 10; when the hole milling of the workpiece 15 is completed, the push rod 4 of the clamping device is retracted, the workpiece 15 is taken down, and the machining is completed.

Claims

1. A milling fixture for a lug-type connection, the features comprising: Base (1), positioning block device, clamping device, auxiliary device; Base (1) is fixedly installed on the workbench of the milling machine, and the base (1) is designed with two U-shaped waist grooves; The base (1) is used for providing overall support and stability of the clamp, ensuring its levelness and firmness, and is the basis of the whole clamp device; The L-shaped pad block (2) is fixedly connected with the base (1), and the fixed block (5) is fixedly connected with the base (1) by two screws (12), which is used for preliminarily determining the position of the workpiece and preparing for the next step processing; The clamping device is fixedly connected with the base (1) through the screw (12), realizes the accurate positioning of the workpiece, and ensures the machining precision; The auxiliary device realizes the auxiliary effect by fixing the supporting block (7) with the base (1).

2. A milling fixture for a lug-type connection according to claim 1, characterized in that: Rectangular slide block (3), push rod (4), fixed block (5) and spring (6) are used for supporting and clamping L-shaped pad block (2) and auxiliary parts, ensuring stable workpiece machining, and being fixed on the base (1); The pad block (11) and the L-shaped pad block (2) are used for accurately positioning the position of the clamp assembly and the workpiece, and preliminarily fixing the clamp, which is fixedly connected with the base (1), and then the workpiece position is further fixed by the clamping plate (10), which is fixedly connected with the base (1) through the nut (13) and the cylindrical pin (14).

3. A milling fixture for a lug-type connection according to claim 1, characterized in that: The auxiliary device is composed of supporting block (7), drill jig plate (8) and drill sleeve (9), the drill sleeve (9) includes machining and assembling hole position, which is convenient for accurate machining steps; The drill jig plate (8) and the supporting block (7) are directly in contact and fixedly connected through the screw (12); At the same time, the screw (12) is used for connecting and fixing the supporting block (7) and the base (1), and providing the stability of the auxiliary device.

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