Fixing tool for square workpiece finish milling

Abstract

The utility model discloses a square workpiece finish milling fixing tool which comprises a clamping base, clamping faces are symmetrically arranged on the two sides of the clamping base, a fixing screw hole is formed in the center of the clamping base, a fixing screw is connected to the middle of the upper portion of the clamping base through the fixing screw hole in a threaded mode, a fixing gland is arranged above the fixing screw, and the fixing gland is connected with the clamping base in a threaded mode. Side open grooves are formed in the two sides, corresponding to the clamping face, of the top of the clamping base, and positioning steps are arranged at the two ends of the top of the clamping base. According to the utility model, the clamping seat and the clamping surfaces are arranged and are matched with the fixing screw and the fixing gland, a workpiece can be fixed on the clamping seat through the fixing screw in the middle, then the clamping seat is fixed on the flat tongs through the clamping surfaces on the two sides of the clamping seat, and the outer side edge of the workpiece is exposed and suspended through the side slots and the positioning steps on the two sides; the milling cutter can be fed at a time to complete machining, overturning is not needed, and the actual machining time of the milling machine is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve processing, in particular to a fixed tool for precision milling of square workpieces. Background Art

[0002] In the field of shaft sleeve processing, since the shaft sleeve embedding openings of some equipment are square holes, it is necessary to process a special-shaped shaft sleeve workpiece with a square outside and a round hole in the center. To ensure the precision of the size, it is necessary to perform fine milling on the outside of the workpiece after the overall processing is completed.

[0003] The existing processing method is to clamp and fix the bottom of the workpiece with flat-nose pliers. After the upper part of the workpiece is processed, the flat-nose pliers are released, the workpiece is turned over and clamped again, and then the fine milling process is performed again. Not only does the milling machine need to perform two repeated processes, but the flipping in the middle also consumes a lot of time, which not only greatly increases the processing time, but the flat-nose pliers can only fix thicker shaft sleeves. When the side thickness of the shaft sleeve is too thin, not only is it difficult to clamp the flat-nose pliers, but it is also easy to affect the subsequent fine milling work, and there is room for further improvement. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a fixed tool for fine milling of square workpieces, thereby solving the above problem.

[0005] To achieve the above-mentioned purpose, a fixed tooling for fine milling of square workpieces is provided, comprising a clamping seat, clamping surfaces are symmetrically provided on both sides of the clamping seat, a fixing screw hole is provided at the center of the clamping seat, a fixing screw is threadedly connected to the upper middle part of the clamping seat through the fixing screw hole, a fixing pressure cover is provided above the fixing screw, side slots are provided on both sides of the top of the clamping seat corresponding to the clamping surface, positioning steps are provided at both ends of the top of the clamping seat, and the two positioning steps are arranged perpendicularly to the two side slots;

[0006] The fixed gland includes a gland cover body, a screw through hole and a workpiece limiting sleeve. The workpiece limiting sleeve is provided at the center of the bottom of the gland cover body, and the screw through hole is provided at the center of the workpiece limiting sleeve.

[0007] According to the fixed fixture for fine milling of a square workpiece, the outer diameter of the workpiece limiting sleeve corresponds to the inner diameter of the square workpiece.

[0008] According to the fixing fixture for precision milling of a square workpiece, the diameter of the screw through hole corresponds to the outer diameter of the fixing screw.

[0009] According to the fixed tool for precision milling of a square workpiece, an embedding sleeve is provided at the upper center of the clamping seat, and the outer diameter of the embedding sleeve is the same as the outer diameter of the workpiece limiting sleeve.

[0010] According to the fixed tool for fine milling of a square workpiece, outer edges of the ends of the embedding sleeve and the workpiece limiting sleeve are both provided with outer rounded corners.

[0011] According to the fixing fixture for fine milling of a square workpiece, an inner fillet is provided at the top edge of the fixing screw hole.

[0012] According to the fixing fixture for precision milling of a square workpiece, the fixing screw is an existing hexagon socket screw.

[0013] The above solution has at least one of the following beneficial effects:

[0014] 1. The utility model is provided with a clamping seat and a clamping surface, which cooperate with fixing screws and a fixing cover. The workpiece can be fixed on the clamping seat by the fixing screw in the middle, and then the clamping seat is fixed on the flat-nose pliers by using the clamping surfaces on both sides of the clamping seat. Then, the side slots and positioning steps on both sides are used to expose the outer edge of the workpiece and allow the milling cutter to complete all processing in one feed. Not only does it not require flipping, but it also greatly reduces the actual processing time of the milling machine, greatly improves the processing efficiency, and enhances the practicality of the device.

[0015] 2. The clamping seat of the utility model is provided with side slots and positioning steps, which not only ensures that the side of the workpiece is completely exposed in the air, but also allows for preliminary positioning of the workpiece when it is fixed, thereby reducing the positioning time of the milling cutter and enhancing the practicality of the device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the combined structure of the first embodiment of the present utility model;

[0019] Figure 2 This is an exploded top view of the first embodiment of the present invention;

[0020] Figure 3 This is an exploded bottom view of the first embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the explosion structure of Example 2 of the present utility model.

[0022] Legend:

[0023] 1. Clamping seat; 2. Clamping surface; 3. Embedded sleeve; 4. Fixing screw hole; 5. Fixing screw; 6. Fixing cover; 7. Side slot; 8. Positioning step; 61. Cover body; 62. Screw through hole; 63. Workpiece limit sleeve. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] Reference Figure 1-3 The embodiment of the present invention provides a fixing tool for fine milling of square workpieces, including a clamping seat 1, with clamping surfaces 2 symmetrically opened on both sides of the clamping seat 1, an embedded sleeve 3 is provided at the center of the clamping seat 1, a fixing screw hole 4 is opened in the center of the clamping seat 1, and an inner fillet is opened at the top edge of the fixing screw hole 4, and a fixing screw 5 is threadedly connected to the upper middle part of the clamping seat 1 through the fixing screw hole 4. The fixing screw 5 is an existing hexagonal screw, and a fixing pressure cover 6 is provided above the fixing screw 5. Side slots 7 are opened on both sides of the top of the clamping seat 1 corresponding to the clamping surface 2, and positioning steps 8 are opened at both ends of the top of the clamping seat 1. The two positioning steps 8 are relatively perpendicularly arranged to the two side slots 7 to form a square step corresponding to the outer side of the workpiece, so that the outer edge of the workpiece is exposed and suspended, so that the milling cutter can complete all the processing with one feed. Not only does it not need to be flipped, but it also greatly reduces the actual processing time of the milling machine, greatly improving the processing efficiency.

[0026] The fixed pressure cover 6 includes a pressure cover body 61, a screw through hole 62 and a workpiece limiting sleeve 63. A workpiece limiting sleeve 63 is provided at the bottom center of the pressure cover body 61. The outer diameter of the workpiece limiting sleeve 63 corresponds to the inner diameter of the square workpiece. The outer diameter of the embedded sleeve 3 is the same as the outer diameter of the workpiece limiting sleeve 63. The outer edges of the ends of the embedded sleeve 3 and the workpiece limiting sleeve 63 are both provided with outer rounded corners. A screw through hole 62 is provided at the center of the workpiece limiting sleeve 63. The diameter of the screw through hole 62 corresponds to the outer diameter of the fixing screw 5. Example

[0027] Reference Figure 4, the difference between this embodiment and the first embodiment is that, in order to fasten a workpiece with a thin side thickness, a fixing fixture for fine milling of a square workpiece is provided, including a clamping seat 1, a clamping surface 2 is symmetrically opened on both sides of the clamping seat 1, a fixing screw hole 4 is opened at the center of the clamping seat 1, and an inner fillet is opened at the top edge of the fixing screw hole 4. A fixing screw 5 is threadedly connected to the upper middle part of the clamping seat 1 through the fixing screw hole 4. The fixing screw 5 is an existing hexagonal screw. A fixing pressure cover 6 is provided above the fixing screw 5. It can be fixed through the middle The workpiece is first fixed on the clamping seat 1 by fixing screws, and then the clamping surfaces 2 on both sides of the clamping seat 1 are used to fix the clamping seat 1 on the flat-nose pliers. Side slots 7 are provided on both sides of the top of the clamping seat 1 corresponding to the clamping surfaces 2. Positioning steps 8 are provided at both ends of the top of the clamping seat 1. The two positioning steps 8 are arranged perpendicularly to the two side slots 7. The side slots 7 and positioning steps 8 provided on the clamping seat 1 can not only ensure that the side of the workpiece is completely exposed in the air, but also can perform preliminary positioning of the workpiece when fixing it, thereby reducing the positioning time of the milling cutter.

[0028] The fixed pressure cover 6 includes a pressure cover body 61, a screw through hole 62 and a workpiece limiting sleeve 63. A workpiece limiting sleeve 63 is provided at the bottom center of the pressure cover body 61. The outer diameter of the workpiece limiting sleeve 63 corresponds to the inner diameter of the square workpiece. A screw through hole 62 is provided at the center of the workpiece limiting sleeve 63. The diameter of the screw through hole 62 corresponds to the outer diameter of the fixing screw 5. By canceling the setting of the embedded sleeve 3, only the workpiece limiting sleeve 63 of the fixed pressure cover 6 is used for limiting, which is convenient for tightening workpieces with thinner side thickness.

[0029] Working principle: When the utility model is working, the clamping seat 1 and the clamping surface 2 are provided, and the fixing screws 5 and the fixed cover 6 are used to first fix the workpiece on the clamping seat 1 through the middle fixing screws, and then the clamping surfaces 2 on both sides of the clamping seat 1 are used to fix the clamping seat 1 on the flat-nose pliers, and then the side slots 7 and positioning steps 8 on both sides are used to expose the outer edge of the workpiece and allow the milling cutter to complete all the processing with one feed. Not only does it not require flipping, it also greatly reduces the actual processing time of the milling machine and greatly improves the processing efficiency. The side slots 7 and positioning steps 8 provided on the clamping seat 1 can not only ensure that the side of the workpiece is completely exposed in the air, but also can perform preliminary positioning of the workpiece when fixing it, thereby reducing the positioning time of the milling cutter.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A fixed fixture for fine milling of a square workpiece, comprising a clamping seat (1), characterized in that: Clamping surfaces (2) are symmetrically provided on both sides of the clamping seat (1), a fixing screw hole (4) is provided at the center of the clamping seat (1), a fixing screw (5) is threadedly connected to the middle part of the upper part of the clamping seat (1) through the fixing screw hole (4), a fixing pressure cover (6) is provided above the fixing screw (5), side slots (7) are provided on both sides of the top of the clamping seat (1) corresponding to the clamping surface (2), positioning steps (8) are provided at both ends of the top of the clamping seat (1), and the two positioning steps (8) are vertically arranged relative to the two side slots (7); The fixed pressure cover (6) comprises a pressure cover body (61), a screw through hole (62) and a workpiece limiting sleeve (63); a workpiece limiting sleeve (63) is provided at the center of the bottom of the pressure cover body (61); and a screw through hole (62) is provided at the center of the workpiece limiting sleeve (63).

2. A fixture for precision milling of a square workpiece according to claim 1, characterized in that: The outer diameter of the workpiece limiting sleeve (63) corresponds to the inner diameter of the square workpiece.

3. A fixture for precision milling of a square workpiece according to claim 2, characterized in that: The diameter of the screw through hole (62) corresponds to the outer diameter of the fixing screw (5).

4. A fixture for precision milling of a square workpiece according to claim 2, characterized in that: An embedded sleeve (3) is provided at the upper center of the clamping seat (1), and the outer diameter of the embedded sleeve (3) is the same as the outer diameter of the workpiece limiting sleeve (63).

5. A fixture for precision milling of a square workpiece according to claim 4, characterized in that: The outer edges of the ends of the embedding sleeve (3) and the workpiece limiting sleeve (63) are both provided with rounded corners.

6. A fixture for precision milling of a square workpiece according to claim 1, characterized in that: The top edge of the fixing screw hole (4) is provided with an inner fillet.

7. A fixture for precision milling of a square workpiece according to claim 1, characterized in that: The fixing screw (5) is an existing hexagon socket screw.

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