Auxiliary machining tool for CNC milling machine machining center

Abstract

The utility model belongs to numerical control milling machine processing center auxiliary frock technical field, especially the auxiliary processing frock for CNC numerical control milling machine processing center, including pedestal one, the new procedure auxiliary device is installed at the top of pedestal one, the original procedure auxiliary device one and original procedure auxiliary device two are provided with before the new procedure auxiliary device, the new procedure auxiliary device includes positioning structure and fixed structure, the fixed structure is installed in the positioning structure top, the fixed structure includes positioning frock no.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for CNC milling machine machining centers, specifically an auxiliary machining tooling for CNC milling machine machining centers. Background Technology

[0002] In high-end manufacturing fields such as aerospace, automotive parts, and precision molds, CNC milling machining centers, with their multi-axis linkage, high-speed cutting, and high-precision control characteristics, have become core equipment for machining complex workpieces. These workpieces often involve multiple machining processes such as curved surfaces, deep holes, and irregular contours, placing stringent requirements on the consistency of clamping and positioning datums and the stability of clamping. Auxiliary machining fixtures, as the key connecting carrier between the workpiece and the machine tool table, directly affect machining accuracy and production efficiency.

[0003] Currently, auxiliary machining tooling used in the industry falls into two categories: general-purpose and special-purpose. General-purpose tooling, such as precision vises and pneumatic chucks, has a certain degree of compatibility and is suitable for machining small to medium batches of simple workpieces. Special-purpose tooling, on the other hand, is customized for specific workpiece structures and achieves precise clamping through the design of locating pins and datum surfaces, meeting the needs of high-volume, high-precision machining. As the manufacturing industry transforms towards flexible production, modular auxiliary tooling is gradually being promoted. Through designs such as replaceable positioning units and quick-change interfaces, it can quickly adapt to the switching of multiple workpiece varieties. At the same time, combined with high-strength alloy materials and precision grinding processes, it ensures that the tooling's own dimensional and positional tolerances are controlled within 0.005mm, forming a precision match with the servo drive and ball screw transmission system of CNC milling machines, supporting an efficient and stable machining process.

[0004] Based on the application of CNC milling machining centers, which have strong comprehensive machining capabilities and high efficiency, the current process involves machining the surfaces of circular castings in two steps. For small orders, this often necessitates tooling changes and readjustment, resulting in excessive time consumption in the overall machining process and impacting overall efficiency. Therefore, a universal tooling solution is needed to reduce changeover time.

[0005] Therefore, we urgently need to provide an auxiliary machining fixture for CNC milling machine machining centers. Utility Model Content

[0006] The purpose of this utility model is to provide an auxiliary machining fixture for CNC milling machine machining centers to solve the problem mentioned in the background art that the existing circular castings need to be machined on both sides, which is currently done in two processes. Often, for small orders, it is necessary to change the fixture and then perform alignment. This changeover time takes up too much of the overall machining time and affects the overall efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary machining fixture for a CNC milling machine machining center, comprising a base, a new process auxiliary device mounted on the top of the base, and an original process auxiliary device 1 and an original process auxiliary device 2 arranged in front of the new process auxiliary device.

[0008] The new process auxiliary device includes a positioning structure and a fixing structure, with the fixing structure installed on top of the positioning structure.

[0009] The fixing structure includes a positioning fixture, a fixing block is installed on the outer surface of the positioning fixture, a locking block is installed on the top and bottom of the positioning fixture, and an abutment block is installed in the middle of the outer surface of the positioning fixture.

[0010] Preferably, the positioning structure includes a positioning platform one, a positioning platform two is provided on the right side of the positioning platform one, a limiting block one is provided on the top of the positioning platform two, and a limiting bolt is installed at the middle of the top of the limiting block one.

[0011] Preferably, the first positioning platform is fixedly installed at the left end of the middle of the top surface of the first base, the second positioning platform is fixedly installed inside the positioning groove in the middle of the top surface of the first base, the outer surface of the first limiting block abuts against the outer surface of the abutting block, the limiting bolt is threadedly connected to the first limiting block and the first base, the outer surface of the first locking block is engaged with the inner part of the limiting groove in the outer surface of the second positioning platform, and the bottom of the first fixing block abuts against the top surface of the first base.

[0012] Preferably, the original process auxiliary device includes a base two, a positioning platform three is installed at the right end of the top surface of the base two, a positioning fixture two is installed in the middle of the top surface of the base two, and a fixing block two is installed on the outer surface of the positioning fixture two.

[0013] Preferably, the middle right end of the outer surface of the second positioning fixture is engaged with the middle of the third positioning platform, the second fixing block is fixedly installed on the outer surface of the second positioning fixture, and the bottom surface of the second fixing block abuts against the top surface of the second base.

[0014] Preferably, the original process auxiliary device 2 includes a base 3, a limiting block 2 is installed on the top surface of the base 3, a positioning fixture 3 is installed in the middle of the top surface of the base 3, and a clamping block 2 is installed on the top surface of the base 3.

[0015] Preferably, the outer surface of the second limiting block abuts against the middle of the outer surface of the third positioning fixture, the second limiting block is detachably connected to the top surface of the third base, and the outer surface of the second locking block is locked to the bottom of the third positioning fixture.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This CNC milling machining center uses auxiliary machining fixtures to quickly clamp and change processes when machining a small number of castings, especially when machining on both sides. It also provides precise positioning, reduces changeover time, and improves machining efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the new process of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure for the new process of this utility model;

[0020] Figure 3 This is a schematic diagram of the original process of this utility model;

[0021] Figure 4 This is a schematic diagram of the original process two of this utility model.

[0022] In the diagram: 1. Base 1; 101. Positioning Platform 1; 102. Positioning Platform 2; 103. Limiting Block 1; 104. Limiting Bolt; 105. Positioning Fixture 1; 106. Fixing Block 1; 107. Locking Block 1; 108. Abutting Block; 201. Base 2; 202. Positioning Platform 3; 203. Positioning Fixture 2; 204. Fixing Block 2; 301. Base 3; 302. Limiting Block 2; 303. Positioning Fixture 3; 304. Locking Block 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Based on the problems in the existing technology, please refer to Figures 1-4 This embodiment provides an auxiliary machining fixture for a CNC milling machine machining center. The auxiliary device for the original process includes a base 201, a positioning table 202 mounted on the right end of the top surface of the base 201, a positioning fixture 203 mounted in the middle of the top surface of the base 201, and a fixing block 204 mounted on the outer surface of the positioning fixture 203. The middle of the right end of the outer surface of the positioning fixture 203 engages with the middle of the positioning table 202, and the fixing block 204 is fixedly mounted on the outer surface of the positioning fixture 203, with its bottom surface abutting against the top surface of the base 201.

[0026] The original process auxiliary device 2 includes a base 301, a limiting block 302 installed on the top surface of the base 301, a positioning fixture 303 installed in the middle of the top surface of the base 301, and a locking block 304 installed on the top surface of the base 301. The outer surface of the limiting block 302 abuts against the middle of the outer surface of the positioning fixture 303, the limiting block 302 is detachably connected to the top surface of the base 301, and the outer surface of the locking block 304 is engaged with the bottom of the positioning fixture 303.

[0027] In the original processing procedure for machining a circular workpiece, the positioning fixture 203 is first installed on the center of the top surface of the base 201 using the positioning table 3 202. Then, the positioning fixture 203 is calibrated and positioned using the fixing block 204. The positioning fixture 203 is then used to assist in the positioning and machining of the workpiece. When it is necessary to machine the other side of the workpiece, the positioning fixture 303 is limited and engaged by the limiting block 202, and the positioning fixture 303 is fixed and positioned by the clamping block 204, so that the positioning fixture 303 is installed in the center of the top surface of the base 301, thereby enabling the auxiliary machining of the other side of the workpiece. This processing method is relatively complicated and affects the efficiency of workpiece machining.

[0028] Example 2:

[0029] Based on Implementation 1, the existing technology has the problem that all surfaces of existing circular castings need to be machined, currently requiring two processing steps. For small orders, this often necessitates tooling changes and readjustment, resulting in excessive processing time and impacting overall efficiency. Please refer to [reference needed]. Figures 1-4 The embodiment provides an auxiliary machining fixture for a CNC milling machine machining center, which can effectively solve the problem of work efficiency in the workpiece machining process. The auxiliary machining fixture for the CNC milling machine machining center includes a base 1, a new process auxiliary device is installed on the top of the base 1, and an original process auxiliary device 1 and an original process auxiliary device 2 are set in front of the new process auxiliary device.

[0030] The new process auxiliary device includes a positioning structure and a fixing structure, with the fixing structure installed on top of the positioning structure. The fixing structure includes a positioning fixture 105, with a fixing block 106 mounted on its outer surface, locking blocks 107 mounted on its top and bottom, and an abutment block 108 mounted in the middle of its outer surface. The positioning structure includes a positioning platform 101, with a positioning platform 102 located on its right side. A limit block 103 is mounted on the top of the positioning platform 102, and a limit bolt 104 is mounted in the middle of the top of the limit block 103.

[0031] Positioning platform 101 is fixedly installed at the left end of the middle of the top surface of base 1. Positioning platform 2 102 is fixedly installed inside the positioning groove in the middle of the top surface of base 1. The outer surface of limiting block 103 abuts against the outer surface of abutting block 108. Limiting bolt 104 is threadedly connected to limiting block 103 and base 1. The outer surface of locking block 107 is locked into the limiting groove in the outer surface of positioning platform 2 102. The bottom of fixing block 106 abuts against the top surface of base 1.

[0032] When processing a small number of castings, especially those requiring machining on both sides, quick clamping, rapid process changeover, and precise positioning reduce process changeover time and improve processing efficiency.

[0033] When processing in the existing process, the positioning fixture 105 is quickly positioned and placed by engaging the locking blocks 107 installed on the top and bottom of the positioning fixture 105 with the positioning grooves provided on the outer surface of the positioning table 102. At the same time, the positioning table 101 is engaged with the protrusions provided on the outer surface of the positioning fixture 105 to achieve quick positioning of the positioning fixture 105. Then, the abutment block 108 and the limiting block 103 are positioned by the limiting bolt 104 to achieve quick installation of the positioning fixture 105, which effectively improves the processing efficiency in the workpiece processing process.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An auxiliary machining fixture for a CNC milling machine machining center, comprising a base (1), characterized in that: A new process auxiliary device is installed on the top of the base (1), and an original process auxiliary device 1 and an original process auxiliary device 2 are set in front of the new process auxiliary device; The new process auxiliary device includes a positioning structure and a fixing structure, wherein the fixing structure is installed on the top of the positioning structure; The fixing structure includes a positioning fixture (105), a fixing block (106) is installed on the outer surface of the positioning fixture (105), a locking block (107) is installed on the top and bottom of the positioning fixture (105), and an abutment block (108) is installed in the middle of the outer surface of the positioning fixture (105).

2. The auxiliary machining fixture for a CNC milling machine machining center according to claim 1, characterized in that: The positioning structure includes a positioning platform one (101), a positioning platform two (102) is provided on the right side of the positioning platform one (101), a limit block one (103) is provided on the top of the positioning platform two (102), and a limit bolt (104) is installed at the middle of the top of the limit block one (103).

3. The auxiliary machining fixture for a CNC milling machine machining center according to claim 2, characterized in that: The positioning platform one (101) is fixedly installed at the left end of the middle of the top surface of the base one (1). The positioning platform two (102) is fixedly installed inside the positioning groove in the middle of the top surface of the base one (1). The outer surface of the limiting block one (103) abuts against the outer surface of the abutting block (108). The limiting bolt (104) is threadedly connected to the limiting block one (103) and the base one (1). The outer surface of the locking block one (107) is locked into the limiting groove in the outer surface of the positioning platform two (102). The bottom of the fixing block one (106) abuts against the top surface of the base one (1).

4. The auxiliary machining fixture for a CNC milling machine machining center according to claim 1, characterized in that: The original process auxiliary device includes a base two (201), a positioning platform three (202) is installed on the right end of the top surface of the base two (201), a positioning fixture two (203) is installed in the middle of the top surface of the base two (201), and a fixing block two (204) is installed on the outer surface of the positioning fixture two (203).

5. The auxiliary machining fixture for a CNC milling machine machining center according to claim 4, characterized in that: The middle right end of the outer surface of the positioning fixture two (203) is engaged with the middle of the positioning platform three (202), and the fixing block two (204) is fixedly installed on the outer surface of the positioning fixture two (203). The bottom surface of the fixing block two (204) abuts against the top surface of the base two (201).

6. The auxiliary machining fixture for a CNC milling machine machining center according to claim 1, characterized in that: The original process auxiliary device 2 includes a base 3 (301), a limit block 2 (302) installed on the top surface of the base 3 (301), a positioning fixture 3 (303) installed in the middle of the top surface of the base 3 (301), and a clamping block 2 (304) installed on the top surface of the base 3 (301).

7. The auxiliary machining fixture for a CNC milling machine machining center according to claim 6, characterized in that: The outer surface of the limiting block two (302) abuts against the middle of the outer surface of the positioning fixture three (303), the limiting block two (302) is detachably connected to the top surface of the base three (301), and the outer surface of the locking block two (304) is locked to the bottom of the positioning fixture three (303).

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