Tool clamp for numerical control machining of metal parts

Abstract

The utility model discloses a tool clamp for numerical control machining of metal pieces, and belongs to the technical field of numerical control machining. A tool clamp for numerical control machining of metal parts comprises a base and further comprises a containing table detachably arranged on the base, a plurality of sets of positioning groove bodies are formed in the containing table at equal intervals and used for containing the metal parts, and floating positioning parts are arranged in the positioning groove bodies; the two groups of symmetrically arranged clamping plates are detachably connected to the top of the placing table and are used for limiting the movement of the metal part in the vertical direction; according to the utility model, the positioning groove body which is used for positioning and is fit with the surface of the metal piece in shape is formed in the placing table, so that the stability of the metal piece to be processed after being placed can be effectively improved, the metal piece is prevented from rolling, and a plurality of metal pieces can be placed at one time; and the placed metal piece is adjusted up and down, so that the fitting property of the metal piece and the positioning groove body is further ensured, and the quality consistency of batch machining can be ensured in subsequent machining.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing, in particular to a fixture for numerical control processing of metal parts. Background Art

[0002] Metal parts play an important role in the field of machinery and have a wide range of applications. Metal parts are generally processed by CNC machine tools. In the process of batch processing of metal parts, in order to improve the processing consistency of metal parts, tooling fixtures are often used to press and position the metal parts during the processing.

[0003] In the prior art, most tooling fixtures do not have adjustment functions, making it difficult to ensure the fit between multiple groups of metal parts and the fixtures after they are placed, which easily leads to low consistency between the processed parts, reduces the stability of the metal parts during the processing, and affects the processing quality of the metal parts. Utility Model Content

[0004] The utility model aims to solve the defects of poor fit and low stability of clamping workpieces in the prior art, and proposes a fixture for numerical control machining of metal parts.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tooling fixture for CNC machining of metal parts comprises a base, and also comprises: a placement table detachably arranged on the base, wherein the placement table is provided with a plurality of groups of positioning grooves equidistantly arranged for placing metal parts, and floating positioning parts are arranged in the positioning grooves; and two groups of symmetrically arranged clamping plates are detachably connected to the top of the placement table for limiting the vertical movement of the metal parts.

[0007] In order to improve the stability of metal part placement, preferably, the positioning groove body includes a transversely arranged first arc groove and a vertically arranged positioning hole connected to the first arc groove, wherein the upper end of the positioning hole is a stepped hole, and the lower end is a first threaded hole, and the positioning piece is arranged in the positioning hole.

[0008] In order to improve the fit of the metal part after placement, the positioning part further includes: a top screw threadedly connected to the first threaded hole; a stepped column fitted to the bottom of the stepped hole, wherein the top of the stepped column is fixedly connected with a positioning block, and the positioning block extends through the stepped hole to the top; a spring, which is arranged between the top screw and the step column, and when the top screw rotates, the spring is compressed or released.

[0009] In order to ensure the stability of clamping the metal parts, the clamp further includes: a pressure plate, which is arranged above the placement table, wherein the bottom surface of the pressure plate has multiple groups of second arc grooves equidistantly opened, and the second arc grooves correspond to the first arc grooves; a support plate integrally formed with the pressure plate, and the bottom of the support plate is against the top surface of the placement table.

[0010] In order to improve the tightness of the connection between the tooling, further, the pressure plate and the placement table are both provided with locking holes for fixing the pressure plate on the placement table.

[0011] Preferably, a through hole is formed on the placement platform, and a second threaded hole corresponding to the through hole is formed on the base.

[0012] Preferably, both ends of the base are provided with mounting holes.

[0013] Compared with the prior art, the utility model provides a fixture for CNC machining of metal parts, which has the following beneficial effects:

[0014] 1. The fixture for CNC machining of metal parts can control the position of the positioning part in the positioning hole by changing the screw progress of the positioning part in the first threaded hole, so that the positioning state of each metal part can be adjusted independently and accurately to ensure the consistency of machining of multiple metal parts;

[0015] 2. The fixture for CNC machining of metal parts can ensure that multiple metal parts can be at the same machining height through the threaded top screw. On the one hand, there is no need to frequently adjust the machine tool processing parameters, and on the other hand, it is easy to control the quality consistency of multiple metal parts.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model provides a positioning groove body for positioning and fitting the shape of the metal part surface on the placement table, which can effectively improve the stability of the metal parts to be processed after placement and prevent the metal parts from rolling, so that multiple metal parts can be placed at one time. In addition, the floating positioning parts and clamps are used to adjust the placed metal parts up and down to further ensure their fit with the positioning groove body, so as to ensure the quality consistency of batch processing in subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a fixture for CNC machining of metal parts from a first perspective proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure from a second perspective of a fixture for CNC machining of metal parts proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of a partial cross-section structure of a fixture for CNC machining of metal parts proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the exploded structure of a fixture for CNC machining of metal parts proposed by the utility model;

[0021] Figure 5 A fixture for CNC machining of metal parts proposed by the utility model Figure 4 The structural diagram of part A in the figure;

[0022] Figure 6 This is a schematic diagram of the structure of a fixture clamp for CNC machining of metal parts proposed by the utility model;

[0023] Figure 7 The utility model is a structural schematic diagram of a fixture positioning piece for CNC machining of metal parts.

[0024] In the figure: 1, base; 101, second threaded hole; 102, mounting hole; 2, placement table; 201, through hole; 202, first arc-shaped groove; 3, positioning hole; 301, first threaded hole; 302, stepped hole; 4, pressure plate; 401, support plate; 402, second arc-shaped groove; 5, top screw; 6, spring; 7, stepped column; 701, positioning block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Example:

[0028] Reference Figure 1-Figure 5A fixture for CNC machining of metal parts, comprising a plate-shaped base 1, both ends of which are provided with mounting holes 102, and bolts can be used to penetrate the mounting holes 102 to fix the base 1 on the machining platform of a CNC machine tool, and also comprising: a placement table 2 which can also be fixed to the upper surface of the base 1 by bolts or screws, and the placement table 2 has multiple groups of positioning grooves equidistantly provided on the placement table 2 for placing metal parts, especially for columnar metal parts, which can prevent them from rolling after placement, thereby facilitating the installation and clamping of the clamping plate, and a positioning piece is provided in the positioning groove body for further fixing the metal parts; two groups of symmetrically arranged clamping plates are also detachably mounted on the top of the placement table 2 by bolts or screws, and cooperate with the positioning grooves on the placement table 2 to limit the movement of the metal parts in the vertical direction, and can effectively fix multiple metal parts.

[0029] In the above scheme, by opening a positioning groove on the placement table 2 for positioning and fitting the shape of the metal part surface, the stability of the metal part to be processed after placement can be effectively improved to prevent the metal part from rolling, so that multiple metal parts can be placed at one time. In addition, with the floating positioning parts and clamps, the placed metal parts can be adjusted up and down to further ensure their fit with the positioning groove, thereby ensuring the quality consistency of batch processing in subsequent processing.

[0030] Reference Figure 3-Figure 5 The positioning groove body mentioned in the tooling fixture for CNC machining of metal parts includes a first arc groove 202 arranged horizontally on the upper surface of the placement table 2 and a vertically arranged positioning hole 3 connected to the first arc groove 202, and the positioning hole 3 runs through the entire placement table 2, and the upper end of the positioning hole 3 is a stepped hole 302, and the lower end is a first threaded hole 301, and the positioning piece is arranged in the positioning hole 3. By changing the spiral progress of the positioning piece in the first threaded hole 301, the position of the positioning piece in the positioning hole 3 can be controlled, so that the positioning state of each metal part can be adjusted independently and accurately to ensure the consistency of the processing of multiple metal parts.

[0031] Reference Figure 3-Figure 7The positioning parts mentioned in the fixture for CNC machining of metal parts include: a top screw 5 threadedly connected to the first threaded hole 301, the bottom of the top screw 5 has a hexagonal inner hole or a straight or cross inner hole, which is convenient for a wrench to drive it to rotate; and a step column 7 fitted at the bottom of the step hole 302, where the step column 7 has two cylindrical rings, and the diameter of one of the cylindrical rings is larger than the small aperture diameter of the step hole 302, which can prevent the step column 7 from going out of the step hole 302, and the diameter of the other cylindrical ring is equal to the small aperture diameter of the step hole 302, which can be slid up and down inside it for adjustment, and a fixed part is fixedly connected to the top of the step column 7. The positioning block 701 passes through the stepped hole 302 and extends to the top, and can cooperate with the hollow head of the metal part to be processed, so as to limit the planar displacement of the metal part; there is also a spring 6, which is arranged between the top screw 5 and the stepped column 7. When the top screw 5 rotates clockwise, the spring 6 is compressed to push the positioning block 701 out to lift the metal part. When the top screw 5 rotates counterclockwise, the spring 6 is released to lower the metal part, thereby ensuring that multiple metal parts can be at the same processing height. On the one hand, there is no need to frequently adjust the machine tool processing parameters. On the other hand, it is convenient to control the quality consistency of multiple metal parts.

[0032] Reference Figure 1-Figure 4 and Figure 6 The clamps mentioned in the fixture for CNC machining of metal parts include: a long strip of pressure plate 4, which is located above the placement table 2 and does not contact the upper surface of the placement table 2. The bottom surface of the pressure plate 4 is equidistantly provided with multiple groups of second arc grooves 402, and the second arc grooves 402 correspond to the first arc grooves 202, which can fix and clamp the metal parts, and the arc structure is more conducive to the clamping fit of the columnar rods; a support plate 401 integrally formed with the pressure plate 4, the support plate 401 is vertically arranged with the pressure plate 4, and the bottom of the support plate 401 is against the top surface of the placement table 2, thereby ensuring that the metal parts can be stably clamped after being placed.

[0033] In addition, locking holes are provided on the pressure plate 4 and the placement table 2 for fixing the pressure plate 4 on the placement table 2 .

[0034] For fixing the placing table 2, a through hole 201 is opened on the placing table 2, and a second threaded hole 101 corresponding to the through hole 201 is opened on the base 1, which can be locked by screws or bolts to ensure the integrity of the entire fixture.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixture for CNC machining of metal parts, comprising a base (1), characterized in that: Also includes: A placement table (2) detachably arranged on the base (1), Wherein, the placement table (2) is provided with a plurality of groups of positioning grooves at equal intervals for placing metal parts, and the positioning grooves are provided with floating positioning parts; Two groups of symmetrically arranged clamping plates are detachably connected to the top of the placing platform (2) and are used to limit the vertical movement of the metal parts.

2. A fixture for CNC machining of metal parts according to claim 1, characterized in that: The positioning groove body comprises a first arc-shaped groove (202) arranged transversely and a positioning hole (3) arranged vertically and communicating with the first arc-shaped groove (202). The upper end of the positioning hole (3) is a stepped hole (302), and the lower end is a first threaded hole (301), and the positioning member is arranged in the positioning hole (3).

3. A fixture for CNC machining of metal parts according to claim 2, characterized in that: The positioning member comprises: A jack screw (5) threadedly connected in the first threaded hole (301); A step column (7) is attached to the bottom of the step hole (302), Wherein, a positioning block (701) is fixedly connected to the top of the stepped column (7), and the positioning block (701) passes through the stepped hole (302) and extends to the top; The spring (6) is arranged between the top screw (5) and the step column (7). When the top screw (5) rotates, the spring (6) is compressed or released.

4. A fixture for CNC machining of metal parts according to claim 2 or 3, characterized in that: The splint comprises: A pressure plate (4) is arranged above the placing table (2). The bottom surface of the pressure plate (4) is provided with a plurality of groups of second arc-shaped grooves (402) at equal intervals, and the second arc-shaped grooves (402) correspond to the first arc-shaped grooves (202); A support plate (401) is integrally formed with the pressure plate (4), and the bottom of the support plate (401) abuts against the top surface of the placement table (2).

5. A fixture for CNC machining of metal parts according to claim 4, characterized in that: The pressure plate (4) and the placement platform (2) are both provided with locking holes for fixing the pressure plate (4) on the placement platform (2).

6. A fixture for CNC machining of metal parts according to claim 1, characterized in that: The placement platform (2) is provided with a through hole (201), and the base (1) is provided with a second threaded hole (101) corresponding to the through hole (201).

7. A fixture for CNC machining of metal parts according to claim 1, characterized in that: Both ends of the base (1) are provided with mounting holes (102).

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