Rapid clamping tool for cylindrical surface laser coding of special-shaped shaft parts

Abstract

The utility model belongs to the field of tool clamps, and particularly relates to a rapid clamping tool for cylindrical surface laser coding of special-shaped shaft parts. A special-shaped shaft part cylindrical surface laser coding rapid clamping tool comprises an auxiliary supporting V-shaped groove, and after the cylindrical surface of a special-shaped shaft part supporting section is supported through the auxiliary supporting V-shaped groove, the special-shaped shaft part supporting section is positioned through a limiting screw on a limiting screw mounting plate, a positioning hole in a positioning plate and a small-diameter section of a taper pin; the special-shaped shaft part is rotationally positioned, and an eccentric hole in the outer end face of the large-diameter section of the special-shaped shaft part is positioned through a taper pin; rapid clamping and positioning of cylindrical surface laser coding of special-shaped shaft parts are achieved, positioning is accurate, operation is convenient, machining quality is guaranteed, machining efficiency is improved, and multi-station automatic production can be achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of jig clamping, and particularly relates to a special-shaped shaft part cylindrical surface laser coding quick clamping tool. BACKGROUND

[0002] With the continuous improvement of industrialization, the requirements for product identification and traceability in industrial production are increasingly strict. Under this background, laser coding has become an important link in industrial production.

[0003] Some parts have special requirements for coding positions, such as positions that are easy to identify after assembly. Therefore, special tooling is required to fix the parts and facilitate coding.

[0004] The prior art special-shaped shaft part cylindrical surface laser coding clamping can meet the precision requirements of laser coding, but the clamping positioning is complex, the processing cost is high, the clamping speed is slow, the efficiency is low, and the product processing quality is unstable. SUMMARY

[0005] The present application is to solve the problems of the prior art special-shaped shaft part cylindrical surface laser coding clamping tool, which cannot be quickly positioned, has a complex structure, and has low processing efficiency, is not suitable for mass production, has high cost, and unstable product processing quality. The present application provides a special-shaped shaft part cylindrical surface laser coding quick clamping tool, which includes a base plate; a positioning plate for positioning one end of a special-shaped shaft part is arranged on the base plate; a positioning hole is arranged on the positioning plate; an oil-free bushing hole is arranged on the positioning plate; an oil-free bushing is arranged in the oil-free bushing hole; a taper pin is arranged in the oil-free bushing; an auxiliary support V-shaped groove is further arranged on the base plate; a limiting screw mounting plate is arranged on the auxiliary support V-shaped groove, and a limiting screw is arranged on the limiting screw mounting plate.

[0006] The V-shaped surface of the auxiliary support V-shaped groove supports the cylindrical surface of the support section of the special-shaped shaft part; the stepped shaft on the outer end surface of the large diameter section of the special-shaped shaft part is positioned through the positioning hole on the positioning plate; the eccentric hole on the outer end surface of the large diameter section of the special-shaped shaft part is positioned by the taper pin, and the outer end surface of the small diameter section of the special-shaped shaft part is axially positioned by the limiting screw on the limiting screw mounting plate.

[0007] According to the special-shaped shaft part cylindrical surface laser coding quick clamping tool described above, a limiting screw mounting plate positioning hole is arranged on the auxiliary support V-shaped groove for fixedly connecting the auxiliary support V-shaped groove and the limiting screw mounting plate.

[0008] According to the special-shaped shaft part cylindrical surface laser coding quick clamping tool described above, the limiting screw mounting plate positioning hole is a through hole, and there are two holes distributed above and below the center line of the cross section of the auxiliary support V-shaped groove.

[0009] According to the special-shaped shaft type part cylindrical surface laser code printing quick clamping tool described above, the limiting screw mounting plate is a sheet metal part with a Z-shaped cross section, the first side plate A of the limiting screw mounting plate is parallel to the third side plate C of the limiting screw mounting plate, the first side plate A of the limiting screw mounting plate and the third side plate C of the limiting screw mounting plate are respectively perpendicular to the second side plate B of the limiting screw mounting plate, the first side plate A of the limiting screw mounting plate is fixedly connected with the auxiliary support V-shaped groove bolt through the limiting screw mounting plate positioning hole, the median line of the third side plate C of the limiting screw mounting plate is provided with a screw hole, and the limiting screw passes through the screw hole to press the outer end surface of the small diameter section of the special-shaped shaft type part.

[0010] According to the special-shaped shaft type part cylindrical surface laser code printing quick clamping tool described above, the oil-free bushing has a T-shaped cross section, the oil-free bushing is provided with a flange, the cross section of the flange is a quadrilateral with two pairs of parallel edges, and the two pairs of edges are symmetric arcs, and the flange of the oil-free bushing is provided with two flange holes symmetrically arranged for fixedly connecting the oil-free bushing and the positioning plate.

[0011] According to the special-shaped shaft type part cylindrical surface laser code printing quick clamping tool described above, the taper pin is a stepped shaft, and the small diameter section of the taper pin passes through the inner hole of the oil-free bushing and is matched with the eccentric hole shaft on the outer end surface of the large diameter section of the special-shaped shaft type part.

[0012] According to the special-shaped shaft type part cylindrical surface laser code printing quick clamping tool described above, the large diameter section of the taper pin is provided with symmetric flats facilitating hand holding and pinching.

[0013] According to the special-shaped shaft type part cylindrical surface laser code printing quick clamping tool described above, there is a gap between the small diameter section of the taper pin and the eccentric hole on the outer end surface of the large diameter section of the special-shaped shaft type part.

[0014] According to the special-shaped shaft type part cylindrical surface laser code printing quick clamping tool described above, the bottom of the bottom plate is provided with a fixed screw hole.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The cylindrical surface of the special-shaped shaft type part support section is supported by the auxiliary support V-shaped groove, and is positioned by the limiting screw on the limiting screw mounting plate, the positioning hole on the positioning plate and the small diameter section of the taper pin; the eccentric hole on the outer end surface of the large diameter section of the special-shaped shaft type part is positioned by the taper pin when the special-shaped shaft type part is rotated; the special-shaped shaft type part cylindrical surface laser code printing quick clamping positioning is realized, the positioning is accurate, the operation is convenient, the machining quality is guaranteed, the machining efficiency is improved, and multi-station automatic production can be realized.

[0017] 2, The positioning plate is provided with an oil-free bushing hole; an oil-free bushing is arranged in the oil-free bushing hole; and a taper pin is arranged in the oil-free bushing, so that the structure is simple, easy to maintain, and high in reliability, and the positioning stability and high-precision requirement of the taper pin in the rotating process are ensured.

[0018] 3, The small-diameter section of the taper pin is spaced apart from the eccentric hole on the outer end face of the large-diameter section of the positioning profiled shaft part, so that the over-positioning of the profiled shaft part cylindrical laser coding clamping tooling is eliminated, and the clamping positioning precision is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a partial cross-sectional view of the front view of the structure schematic diagram of the profiled shaft part clamped by the application.

[0020] Figure 2 It is a front view of the structure schematic diagram of the profiled shaft part clamped by the application.

[0021] Figure 3 It is a cross-sectional view of the front view of the structure schematic diagram of the profiled shaft part clamped by the application.

[0022] Figure 4 It is a right view of the structure schematic diagram of the profiled shaft part clamped by the application.

[0023] Figure 5 It is a left view of the structure schematic diagram of the profiled shaft part clamped by the application.

[0024] Figure 6 It is a perspective view of the structure schematic diagram of the profiled shaft part clamped by the application.

[0025] Figure 7 It is a laser coding position schematic diagram of the structure diagram of the profiled shaft part.

[0026] Figure 8 It is a cross-sectional view of the structure diagram of the profiled shaft part.

[0027] Figure 9 It is a left view of the structure diagram of the profiled shaft part.

[0028] In the figure: 1-taper pin, 2-oil-free bushing, 3-positioning plate, 4-bottom plate, 5-profiled shaft part, 6-assisted support V-shaped groove, 7-limiting screw mounting plate, 8-limiting screw, 11-small-diameter section of taper pin, 12-large-diameter section of taper pin, 21-flange, 31-positioning hole, 32-oil-free bushing hole, 61-limiting screw mounting plate positioning hole, 71-screw hole, 110-small-diameter section of profiled shaft part, 111-support section of profiled shaft part, 120-large-diameter section of profiled shaft part, 121-eccentric hole, 122-step shaft, 200-laser coding position. DETAILED DESCRIPTION

[0029] PREFERRED EMBODIMENT

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0031] As shown in the drawings: in the embodiment, the laser coding and fast clamping tool for the cylindrical surface of the special-shaped shaft part comprises a bottom plate 4; the bottom plate 4 is provided with a positioning plate 3 for positioning one end of the special-shaped shaft part; the positioning plate 3 is provided with a positioning hole 31; the positioning plate 3 is provided with an oil-free bushing hole 32; the oil-free bushing hole 32 is provided with an oil-free bushing 2; the oil-free bushing 2 is provided with a taper pin 1; the bottom plate 4 is further provided with an auxiliary supporting V-shaped groove 6; the auxiliary supporting V-shaped groove 6 is provided with a limiting screw mounting plate 7, and the limiting screw mounting plate 7 is provided with a limiting screw 8. Figures 1 to 6 The V-shaped surface of the auxiliary supporting V-shaped groove 6 supports the cylindrical surface of the supporting section 111 of the special-shaped shaft part; the stepped shaft 122 on the outer end surface of the large-diameter section 120 of the special-shaped shaft part is positioned through the positioning hole 31 on the positioning plate 3; the eccentric hole 121 on the outer end surface of the large-diameter section 120 of the special-shaped shaft part is positioned through the taper pin 1, and the outer end surface of the small-diameter section 110 of the special-shaped shaft part is axially positioned through the limiting screw 8 on the limiting screw mounting plate 7.

[0032] The auxiliary supporting V-shaped groove 6 is provided with a limiting screw mounting plate positioning hole 61 for fixedly connecting the auxiliary supporting V-shaped groove 6 and the limiting screw mounting plate 7.

[0033] The limiting screw mounting plate positioning hole 61 is two through holes, which are distributed on the upper and lower center lines of the cross section of the auxiliary supporting V-shaped groove 6.

[0034] The limiting screw mounting plate 7 is a sheet metal part with a Z-shaped cross section, the first side plate A of the limiting screw mounting plate 7 is parallel to the third side plate C of the limiting screw mounting plate 7; the first side plate A of the limiting screw mounting plate 7 and the third side plate C of the limiting screw mounting plate 7 are perpendicular to the second side plate B of the limiting screw mounting plate 7; the first side plate A of the limiting screw mounting plate 7 is bolted and fixedly connected with the auxiliary supporting V-shaped groove 6 through the limiting screw mounting plate positioning hole 61; the median line of the third side plate C of the limiting screw mounting plate 7 is provided with a screw hole 71; the limiting screw 8 passes through the screw hole 71 to press the outer end surface of the small-diameter section 110 of the special-shaped shaft part.

[0035]

[0036] ​The cross section of the oil-free bushing 2 is T-shaped; the oil-free bushing 2 is provided with a flange 21; the cross section of the flange 21 is a quadrangle with two pairs of parallel sides, and the two pairs of sides are symmetrical arcs; the flange 21 of the oil-free bushing 2 is provided with two symmetrical flange holes for fixing and connecting the oil-free bushing 2 and the positioning plate 3.

[0037] The taper pin 1 is a stepped shaft; the small-diameter section 11 of the taper pin passes through the inner hole of the oil-free bushing 2 and is in hole shaft cooperation with the eccentric hole 121 on the outer end face of the large-diameter section 120 of the positioning profile shaft part.

[0038] The large-diameter section 12 of the taper pin is provided with symmetrical flats for facilitating hand holding and pinching.

[0039] There is a gap between the small-diameter section 11 of the taper pin and the eccentric hole 121 on the outer end face of the large-diameter section 120 of the positioning profile shaft part.

[0040] The bottom of the bottom plate 4 is provided with a fixing screw hole.

[0041] The profile shaft part cylindrical laser code printing quick clamping tool of the embodiment is provided with an auxiliary supporting V-shaped groove 6 on the bottom plate 4, which supports the supporting section 111 of the profile shaft part; the bottom plate 4 is provided with a positioning plate 3, the positioning plate 3 is provided with a positioning hole 31, and the profile shaft part small-diameter section is inserted into the positioning hole 31 for positioning; the positioning plate 3 is provided with an eccentric hole 121 and an oil-free bushing hole 32; the oil-free bushing 2 is arranged in the eccentric hole 121 and fixed by an oil-free bushing screw.

[0042] The taper pin 1 is inserted into the oil-free bushing hole 32, the profile shaft part is rotated, the taper pin 1 is inserted into the eccentric hole 121 of the profile shaft part, and the profile shaft part is positioned in the circumferential direction.

[0043] The auxiliary supporting V-shaped groove 6 is provided with a limiting screw mounting plate 7; the limiting screw mounting plate 7 is provided with a limiting screw 8, which axially positions the profile shaft part.

[0044] The method for clamping the profile shaft part by using the profile shaft part cylindrical laser code printing quick clamping tool comprises the following steps:

[0045] Firstly, the cylindrical surface of the profile shaft part supporting section 111 is placed on the V-shaped surface of the auxiliary supporting V-shaped groove 6;

[0046] Secondly, the stepped shaft 122 on the outer end face of the profile shaft part large-diameter section 120 is assembled into the positioning hole 31 on the positioning plate 3;

[0047] Thirdly, the small-diameter section 11 of the taper pin passes through the inner hole of the oil-free bushing 2;

[0048] Then, the positioning irregular shaft part 5 is rotated, the small diameter section 11 of the taper pin is matched with the eccentric hole 121 on the outer end surface of the large diameter section 120 of the positioning irregular shaft part;

[0049] Finally, the limiting screw 8 is tightened, the outer end surface of the large diameter section 120 of the irregular shaft part is close to the inner end positioning surface of the positioning plate 3, and complete positioning of the part is realized.

[0050] The clamping device has the characteristics of simple manufacturing, accurate positioning, convenient operation and multi-station machining, can realize multi-station automatic production, and has high production efficiency, high quality and low production cost for the products of this kind of machining.

[0051] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A quick-clamping fixture for laser marking on the cylindrical surface of irregularly shaped shaft parts, characterized in that: The utility model provides a kind of positioning device for positioning the one end of the special-shaped shaft class spare, including bottom plate (4);Bottom plate (4) is provided with the positioning plate (3) for positioning the one end of special-shaped shaft class spare;Positioning plate (3) is provided with positioning hole (31);Positioning plate (3) is provided with oilless bushing hole (32);Oilless bushing hole (32) is provided with oilless bushing (2);Oilless bushing (2) is provided with taper pin (1);Bottom plate (4) is further provided with auxiliary support V-shaped groove (6);Auxiliary support V-shaped groove (6) is provided with limiting screw mounting plate (7), limiting screw mounting plate (7) is provided with limiting screw (8); The V-shaped surface of auxiliary support V-shaped groove (6) supports the cylindrical surface of special-shaped shaft class spare support section (111);The step shaft (122) on the outer end surface of special-shaped shaft class spare large diameter section (120) is positioned by the positioning hole (31) on the positioning plate (3);The eccentric hole (121) on the outer end surface of special-shaped shaft class spare large diameter section (120) is positioned by taper pin (1), and the outer end surface of special-shaped shaft class spare small diameter section (110) is positioned in axial direction by limiting screw (8) on limiting screw mounting plate (7).

2. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 1, characterized in that: Auxiliary support V-shaped groove (6) is provided with limiting screw mounting plate positioning hole (61) for fixedly connecting auxiliary support V-shaped groove (6) and limiting screw mounting plate (7).

3. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 2, characterized in that: Limiting screw mounting plate positioning hole (61) is through hole, and there are two, which are distributed on the center line of the section of auxiliary support V-shaped groove (6) upward and downward.

4. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 3, characterized in that: Limiting screw mounting plate (7) is sheet metal part with Z-shaped section.

5. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 4, characterized in that: The first side plate A of limiting screw mounting plate (7) is parallel to the third side plate C of limiting screw mounting plate (7);The first side plate A of limiting screw mounting plate (7) and the third side plate C of limiting screw mounting plate (7) are perpendicular to the second side plate B of limiting screw mounting plate (7) respectively;The first side plate A of limiting screw mounting plate (7) is bolted and connected with auxiliary support V-shaped groove (6) through limiting screw mounting plate positioning hole (61);The middle line of the third side plate C of limiting screw mounting plate (7) is provided with screw hole (71);Limiting screw (8) passes through screw hole (71) and presses the outer end surface of special-shaped shaft class spare small diameter section (110).

6. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 5, characterized in that: The section of oilless bushing (2) is T-shaped;Oilless bushing (2) is provided with flange (21);The section of flange (21) is quadrilateral with two pairs of parallel edges, and the two pairs of edges are symmetrical arcs;The flange (21) of oilless bushing (2) is provided with two symmetrical flange holes for fixedly connecting oilless bushing (2) and positioning plate (3), and oilless bushing (2) guides and supports taper pin (1).

7. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 6, characterized in that: Taper pin (1) is stepped shaft;The small diameter section (11) of taper pin passes through the inner hole of oilless bushing (2) and cooperates with the eccentric hole (121) on the outer end surface of special-shaped shaft class spare large diameter section (120).

8. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 7, characterized in that: The large diameter section (12) of taper pin is provided with symmetrical flat for hand holding.

9. The special-shaped shaft part cylindrical laser marking and rapid clamping tooling according to claim 8, characterized in that: There is a gap between the small diameter section (11) of taper pin and the eccentric hole (121) on the outer end surface of special-shaped shaft class spare large diameter section (120).

10. The special shaft type part cylindrical laser marking and fast clamping tooling according to claim 9, characterized in that: The bottom of the bottom plate (4) is provided with a fixed screw hole.

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