Special position machining tool for small shaft type round bar parts

Abstract

The utility model relates to the technical field of machine manufacturing, in particular to a special position machining tool for small shaft type round bar parts, which comprises a machining platform, a clamping jaw vice and a positioning clamping block. The clamping vice comprises sizing blocks and a sliding seat, a plurality of pairs of sizing blocks are installed on the sliding seat in the length direction, and a set of positioning clamping blocks is installed between each pair of sizing blocks to clamp a small shaft type round bar part; the sliding base slides on the machining platform to adjust the position. A pair of positioning clamping blocks is arranged, profiling grooves are formed in the opposite faces of the inner sides of the positioning clamping blocks in the length direction, the positioning clamping blocks are used for clamping small shaft type round bar parts, and the pair of positioning clamping blocks are fixed to the sizing blocks on the two sides through locking bolts respectively and locked on the sliding base through locking screws. During clamping, the contact area of the circular side wall is large, local point position stress is reduced, indentations and scratches are prevented from being generated on the surface of a part, meanwhile, the positioning and guiding effects are achieved, the coaxiality and the clamping degree are ensured, scratches and other damage to the shaft end, namely the outer circular surface are avoided, the machining precision is improved, and positioning is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a special position processing tool for small shaft-like round bar parts. Background Art

[0002] The special local positions of small shaft-like and round rod-like parts have complex features, and it is a common problem that lathes cannot process them. In addition, the market demand for small round rod-like parts is extensive, and the characteristics of local special workstations are changeable. The traditional clamping method is to use a chuck to clamp the shaft. The clamping and pressure process can easily cause deformation / scratches on the outer diameter surface of the shaft, seriously affecting product quality. In addition, the machining process is affected by the cutting force due to the length of the shaft section, which affects the machining accuracy. How to clamp small round rod-like parts for special milling processing to reduce surface damage of parts and ensure machining accuracy is the key to the problem of machining local complex features of small round rod-like parts. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a special position processing tool for small shaft-like round bar parts.

[0004] The specific technical solutions are as follows:

[0005] A special position processing tool for small shaft-like round bar parts, used for clamping small shaft-like round bar parts during processing, the processing tool comprises a processing platform, a clamping vise and a positioning clamp block;

[0006] The clamping vise includes a shim and a slide seat. Multiple pairs of shims are installed on the slide seat along the length direction. A group of positioning blocks are installed between each pair of shims to clamp a small shaft-like round rod part. Locking holes are vertically opened on the shims. The slide seat slides on the processing platform to adjust the position. A group of positioning blocks is a pair. The inner opposite surfaces are processed with profiling grooves along the length direction to match the clamping of small shaft-like round rod parts. A pair of positioning blocks are respectively opened with two mounting holes in the horizontal direction. The positioning blocks are respectively fixed to the shims on both sides by locking bolts passing through the mounting holes, and the shims are locked on the slide seat by vertically screwing the locking screws into the locking holes.

[0007] The processing platform is provided with a plurality of slide grooves in parallel horizontally or vertically, and the slide seat slides in the slide grooves in cooperation.

[0008] The cross section of the slide groove is an inverted T shape, the cross section of the bottom of the slide seat is an inverted T shape matching the slide groove, and the slide seat slides in the slide groove.

[0009] The profiling groove is profiling and coaxial with the small shaft-like round bar part, and a pair of positioning clamping blocks are buckled together to clamp the small shaft-like round bar part through the inner side wall.

[0010] The clamping strength between the shims is adjustable.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model solves the processing difficulties of special workstations and reduces the scrap rate of parts. Through the positioning clamp block and the clamping vise, the clamping and positioning of small round rod parts are realized. The opposite surface of the inner side of the positioning clamp block is processed with a profiling groove along the length direction. The profiling groove is contoured and coaxial with the small shaft round rod part. It can be self-positioned during the clamping and locking process. A pair of positioning clamp blocks are buckled together to clamp the small shaft round rod part by the inner side wall. When clamping, the contact area of ​​the circular side wall is large, which reduces the force on the local point position, and will not cause indentations and scratches on the surface of the part. At the same time, it plays a role of positioning and guiding, ensuring the coaxiality and clamping degree, and will not cause scratches and other damage to the shaft end, that is, the outer cylindrical surface.

[0013] The clamping vise of the utility model can exert clamping force and control the clamping degree, is convenient to use and has low operation cost, and is simple and convenient to clamp. At the same time, the processing accuracy is improved, the positioning is accurate, and there is no clamping mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a processing tooling of Example 1 of the utility model;

[0015] Figure 2 for Figure 1 A local stereoscopic enlarged schematic diagram of the center A;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the processing tooling of the utility model;

[0017] In the figure, 1, processing platform; 11, slide; 2, clamping vise; 21, shim; 22, locking hole; 23, slide seat; 3, positioning clamp; 31, contour groove; 4, locking bolt; 41, mounting hole; 5, small shaft-like round bar parts. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the accompanying drawings. Example 1

[0019] Figure 1 It is a schematic diagram of the processing tooling of the utility model. Figure 2 for Figure 1 A local stereoscopic enlarged schematic diagram of point A in the middle, Figure 3It is a three-dimensional structural schematic diagram of the processing tool of the utility model, as shown in the figure: the special position processing tool of the small shaft-like round bar parts of the utility model is used for clamping during the processing of small shaft-like round bar parts 5, and the processing tool includes a processing platform 1, a clamping vise 2 and a positioning clamp 3; a plurality of slide grooves 11 are horizontally and parallelly provided on the processing platform 1, and the cross section of the slide groove 11 is an inverted T shape, and the cross section of the bottom of the slide seat 23 is an inverted T shape matching the slide groove 11, and the slide seat 23 slides in the slide groove 11. The clamping vise 2 includes a shim 21 and a slide seat 23, and the slide seat 23 is installed with multiple pairs of shims 21 along the length direction, and a group of positioning clamps 3 are installed between each pair of shims 21 to clamp a small shaft-like round bar part 5, and the clamping force between the shims 21 is adjustable; a locking hole 22 is vertically provided on the shim 21; the slide seat 23 slides on the processing platform 1 to adjust the position;

[0020] A group of positioning clamps 3 is a pair, and the inner opposite surfaces are processed with profiling grooves 31 along the length direction. The profiling grooves 31 are profiling and coaxial with the small shaft-like round rod parts 5. The pair of positioning clamps 3 are buckled together to clamp the small shaft-like round rod parts 5 by the inner side walls. The pair of positioning clamps 3 respectively have two mounting holes 41 in the horizontal direction. The positioning clamps 3 are respectively fixed to the washers 21 on both sides by passing the locking bolts 4 through the mounting holes 41, and the washers 21 are locked on the slide seat 23 by vertically screwing the locking screws into the locking holes 22. Example 2

[0021] The difference from the first embodiment is that a plurality of slide grooves 11 are longitudinally and parallelly provided on the processing platform 1 . Example 3

[0022] The difference from the first embodiment is that a plurality of slide grooves 11 are provided on the processing platform 1 in parallel in both the horizontal and vertical directions.

[0023] When in use, first slide the slide 23 into the slide groove 11. Then, the positioning clamp 3 and the washers 21 on both sides are fixed respectively by passing the locking bolts 4 through the mounting holes 41. Then, the small shaft-like round bar parts 5 are placed in the profiling groove 31 of the positioning clamp 3, and the relative position of the slide 23 is gradually adjusted, and then the relative position of the positioning clamp 3 is adjusted. During the process, the small shaft-like round bar parts 5 can be self-positioned in the profiling groove 31 to achieve the clamping of the small shaft-like round bar parts 5. Finally, the washers 21 are locked on the slide 23 by vertically screwing the locking screw into the locking hole 22, and the special position of the small shaft-like round bar parts 5 is processed in the next step.

Claims

1. A special position processing tool for small shaft round bar parts, characterized by: Used for clamping small shaft-like round bar parts (5) during processing, the processing tooling comprises a processing platform (1), a clamping vise (2) and a positioning clamp block (3); The clamping vise (2) comprises a washer (21) and a slide seat (23). The slide seat (23) is provided with a plurality of pairs of washer (21) along the length direction. A group of positioning clamps (3) is installed between each pair of washer (21) to clamp a small shaft-like round bar part (5). The washer (21) is vertically provided with a locking hole (22). The slide seat (23) slides on the processing platform (1) to adjust the position. A group of positioning clamps (3) is a pair. The inner opposite surfaces are processed to form a profiling groove (31) along the length direction. The positioning clamps (3) are relatively buckled to clamp the small shaft-like round bar part (5). The pair of positioning clamps (3) are respectively provided with two mounting holes (41) in the horizontal direction. The positioning clamps (3) are respectively fixed to the washer (21) on both sides by means of locking bolts (4) passing through the mounting holes (41). The washer (21) is locked on the slide seat (23) by means of a locking screw that is vertically screwed into the locking hole (22).

2. The special position processing tool for small shaft-like round bar parts according to claim 1 is characterized in that: The processing platform (1) is provided with a plurality of slide grooves (11) in parallel in a horizontal or vertical direction, and the slide seat (23) slides in the slide grooves (11).

3. The special position processing tool for small shaft-like round bar parts according to claim 2 is characterized in that: The cross section of the slide groove (11) is an inverted T-shape, the cross section of the bottom of the slide seat (23) is an inverted T-shape matching the slide groove (11), and the slide seat (23) slides in the slide groove (11).

4. The special position processing tool for small shaft-like round bar parts according to claim 1 is characterized in that: The profiling groove (31) is profiling and coaxial with the small shaft-like round rod part (5), and a pair of positioning clamping blocks (3) are buckled together to clamp the small shaft-like round rod part (5) through the inner side wall.

5. The special position processing tool for small shaft-like round bar parts according to claim 1 is characterized in that: The clamping force between the washers (21) is adjustable.

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