Special-shaped shaft parts cylindrical laser coding fast clamping tooling

Abstract

The present invention belongs to the field of tooling and fixtures, and particularly relates to a fast clamping tooling for laser coding of cylindrical surfaces of special-shaped shaft parts. The fast clamping tooling for laser coding of cylindrical surfaces of special-shaped shaft parts comprises: an auxiliary support V-shaped groove, after the cylindrical surface of the support section of the special-shaped shaft parts is supported by the auxiliary support V-shaped groove, it is positioned by the limit screws on the limit screw mounting plate, the positioning holes on the positioning plate, and the small diameter section of the tapered pin; the special-shaped shaft parts are rotated to position, and the eccentric holes on the outer end surface of the large diameter section of the special-shaped shaft parts are positioned by the tapered pin; the fast clamping and positioning of laser coding of cylindrical surfaces of special-shaped shaft parts is realized, the positioning is accurate, the operation is convenient, the processing quality is guaranteed, the processing efficiency is improved, and multi-station automated production can be realized.

Description

Technical Field

[0001] The invention belongs to the field of fixture clamping, and particularly relates to a fast clamping tool for cylindrical laser coding of special-shaped shaft parts. Background Art

[0002] With the continuous improvement of industrialization, the requirements for product identification and traceability in industrial production are becoming increasingly stringent. In this context, laser coding has become an important part of industrial production.

[0003] Some parts have special requirements for the coding position, such as a position that is easily identifiable after assembly. In this case, special tooling is required to fix the parts and facilitate coding.

[0004] The existing cylindrical laser coding clamping of special-shaped shaft parts can meet the accuracy requirements of laser coding, but the clamping positioning is complicated, the processing cost is high, the clamping speed is slow, the efficiency is low, and the product processing quality is unstable. Summary of the invention

[0005] The invention aims to solve the problems of the prior art of the cylindrical laser coding clamping tooling for special-shaped shaft parts, such as the inability to quickly locate, the complex structure, the low processing efficiency, the unsuitability for mass production, the high cost, and the unstable product processing quality. The invention proposes a cylindrical laser coding rapid clamping tooling for special-shaped shaft parts, comprising a base plate; a positioning plate for locating one end of the special-shaped shaft parts 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 also arranged on the base plate; a limit screw mounting plate is arranged on the auxiliary support V-shaped groove, and a limit screw is arranged on the limit screw mounting plate;

[0006] The V-shaped surface of the auxiliary supporting V-shaped groove supports the cylindrical surface of the supporting 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 by 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 a tapered pin, and the outer end surface of the small diameter section of the special-shaped shaft part is axially positioned by the limit screw on the limit screw mounting plate.

[0007] According to the above-mentioned quick clamping tooling for cylindrical laser coding of special-shaped shaft parts, a limit screw mounting plate positioning hole for fixedly connecting the auxiliary support V-shaped groove and the limit screw mounting plate is provided on the auxiliary support V-shaped groove.

[0008] According to the above-mentioned quick clamping fixture for cylindrical laser coding of special-shaped shaft parts, the positioning holes of the limit screw mounting plate are through holes, and there are two of them, which are distributed above and below the center line of the cross section of the auxiliary support V-groove.

[0009] According to the above-mentioned quick clamping tooling for cylindrical laser coding of special-shaped shaft parts, the limit screw mounting plate is a sheet metal with a Z-shaped cross-section, and the first side plate A of the limit screw mounting plate is parallel to the third side plate C of the limit screw mounting plate; the first side plate A of the limit screw mounting plate and the third side plate C of the limit screw mounting plate are respectively perpendicular to the second side plate B of the limit screw mounting plate; the first side plate A of the limit screw mounting plate is fixedly connected with the auxiliary supporting V-slot bolt through the positioning hole of the limit screw mounting plate; a screw hole is arranged on the mid-vertical line of the third side plate C of the limit screw mounting plate; the limit screw passes through the screw hole to press the outer end surface of the small diameter section of the special-shaped shaft part.

[0010] According to the above-mentioned quick clamping tool for cylindrical laser coding of special-shaped shaft parts, it is characterized in that: the cross-section of the oil-free bushing is T-shaped; a flange is provided on the oil-free bushing; the cross-section of the flange is a quadrilateral with two pairs of parallel sides and symmetrical arcs; two symmetrical flange holes for fixing and connecting the oil-free bushing and the positioning plate are provided on the flange of the oil-free bushing.

[0011] According to the above-mentioned quick clamping tool for cylindrical laser coding of special-shaped shaft parts, the characteristics are: the tapered pin is a stepped shaft; the small diameter section of the tapered pin passes through the inner hole of the oil-free bushing and cooperates with the eccentric hole shaft on the outer end surface of the large diameter section of the positioning special-shaped shaft parts.

[0012] According to the above-mentioned quick clamping tool for cylindrical laser coding of special-shaped shaft parts, the feature is that a symmetrical flat plate which is convenient for hand-holding is provided on the large diameter section of the tapered pin.

[0013] According to the above-mentioned quick clamping tool for cylindrical laser coding of special-shaped shaft parts, the feature is that there is a gap between the small diameter section of the tapered pin and the eccentric hole on the outer end surface of the large diameter section of the positioning special-shaped shaft part.

[0014] According to the above-mentioned quick clamping tool for cylindrical laser coding of special-shaped shaft parts, it is characterized in that a fixing screw hole is provided at the bottom of the bottom plate.

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

[0016] 1. The cylindrical surface of the support section of the special-shaped shaft parts of the present invention is supported by an auxiliary supporting V-shaped groove, and is positioned by the limit screws on the limit screw mounting plate, the positioning holes on the positioning plate, and the small diameter section of the tapered pin; the special-shaped shaft parts are rotated, and the eccentric holes on the outer end surface of the large diameter section of the special-shaped shaft parts are positioned by the tapered pin; the cylindrical laser coding of the special-shaped shaft parts is realized to quickly clamp and position, the positioning is accurate, the operation is convenient, the processing quality is guaranteed, the processing efficiency is improved, and multi-station automated production can be realized.

[0017] 2. The positioning plate of the present invention is provided with an oil-free bushing hole; an oil-free bushing is provided in the oil-free bushing hole; a taper pin is provided in the oil-free bushing, which has a simple structure, is easy to maintain, and has high reliability, thereby ensuring the positioning stability and high precision requirements of the taper pin during the rotation process.

[0018] 3. There is a gap between the small diameter section of the tapered pin of the present invention and the eccentric hole on the outer end surface of the large diameter section of the positioning special-shaped shaft parts, which eliminates the over-positioning of the cylindrical laser coding clamping tooling of the special-shaped shaft parts and ensures the accuracy of clamping and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial sectional view of the main view of the structural schematic diagram of clamping special-shaped shaft parts of the present invention.

[0020] Figure 2 It is a front view of the structural schematic diagram of clamping special-shaped shaft parts of the present invention.

[0021] Figure 3 It is a sectional view of the main view of the structural schematic diagram of clamping special-shaped shaft parts of the present invention.

[0022] Figure 4 It is a right view of the structural schematic diagram of the present invention for clamping special-shaped shaft parts.

[0023] Figure 5 It is a left view of the structural schematic diagram of the present invention for clamping special-shaped shaft parts.

[0024] Figure 6 It is a stereoscopic diagram of the structural schematic diagram of the clamping of special-shaped shaft parts of the present invention.

[0025] Figure 7 This is a schematic diagram of the laser coding positions of the structural diagram of the special-shaped shaft parts of the present invention.

[0026] Figure 8 It is a cross-sectional view of the structural diagram of the special-shaped shaft parts of the present invention.

[0027] Fig. 9 It is a left view of the structural diagram of the special-shaped shaft parts of the present invention.

[0028] In the figure: 1-taper pin, 2-oil-free bushing, 3-positioning plate, 4-base plate, 5-special-shaped shaft parts, 6-auxiliary support V-groove, 7-limit screw mounting plate, 8-limit 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-positioning hole of limit screw mounting plate, 71-screw hole, 110-small diameter section of special-shaped shaft parts, 111-support section of special-shaped shaft parts, 120-large diameter section of special-shaped shaft parts, 121-eccentric hole, 122-step shaft, 200-laser coding position. DETAILED DESCRIPTION

[0029] Preferred Embodiments

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] like Figures 1 to 6 As shown: In this embodiment, the cylindrical laser coding fast clamping tool for special-shaped shaft parts includes a base plate 4; a positioning plate 3 for positioning one end of the special-shaped shaft parts is provided on the base plate 4; a positioning hole 31 is provided on the positioning plate 3; an oil-free bushing hole 32 is provided on the positioning plate 3; an oil-free bushing 2 is provided in the oil-free bushing hole 32; a taper pin 1 is provided in the oil-free bushing 2; an auxiliary support V-shaped groove 6 is also provided on the base plate 4; a limit screw mounting plate 7 is provided on the auxiliary support V-shaped groove 6, and a limit screw 8 is provided on the limit screw mounting plate 7;

[0032] 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 parts; the stepped shaft 122 on the outer end surface of the large diameter section 120 of the special-shaped shaft parts is positioned by 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 parts is positioned by the tapered pin 1, and the outer end surface of the small diameter section 110 of the special-shaped shaft parts is axially positioned by the limit screw 8 on the limit screw mounting plate 7.

[0033] The auxiliary support V-shaped groove 6 is provided with a limit screw mounting plate positioning hole 61 for fixedly connecting the auxiliary support V-shaped groove 6 and the limit screw mounting plate 7 .

[0034] The positioning holes 61 of the limit screw mounting plate are two through holes, which are distributed above and below the center line of the cross section of the auxiliary support V-shaped groove 6 .

[0035] The limit screw mounting plate 7 is a sheet metal part with a Z-shaped cross-section, and the first side plate A of the limit screw mounting plate 7 is parallel to the third side plate C of the limit screw mounting plate 7; the first side plate A of the limit screw mounting plate 7 and the third side plate C of the limit screw mounting plate 7 are respectively perpendicular to the second side plate B of the limit screw mounting plate 7; the first side plate A of the limit screw mounting plate 7 is fixedly connected with the auxiliary support V-shaped groove 6 by bolts through the limit screw mounting plate positioning hole 61; a screw hole 71 is provided on the mid-vertical line of the third side plate C of the limit screw mounting plate 7; the limit 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.

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

[0037] The tapered pin 1 is a stepped shaft; the small diameter section 11 of the tapered pin passes through the inner hole of the oil-free bushing 2 and cooperates with the eccentric hole 121 on the outer end surface of the large diameter section 120 of the positioning special-shaped shaft parts.

[0038] The large diameter section 12 of the taper pin is provided with a symmetrical flat portion for easy hand-holding.

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

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

[0041] In the fast clamping fixture for cylindrical laser coding of special-shaped shaft parts of this embodiment, an auxiliary support V-shaped groove 6 is provided on the bottom plate 4, which supports the support section 111 of the special-shaped shaft parts. A positioning plate 3 is provided on the bottom plate 4, and a positioning hole 31 is provided on the positioning plate 3. The small diameter section of the special-shaped shaft parts is inserted into the positioning hole 31 for positioning; an eccentric hole 121 and an oil-free bushing hole 32 are provided on the positioning plate 3; the oil-free bushing 2 is arranged in the second eccentric hole 121 and fixed with an oil-free bushing screw;

[0042] The cone pin 1 is inserted into the oil-free bushing hole 32, and the special-shaped shaft part is rotated to insert the cone pin 1 into the eccentric hole 121 of the special-shaped shaft part, so that the special-shaped shaft part is positioned in the circumferential direction.

[0043] A limit screw mounting plate 7 is arranged on the auxiliary support V-shaped groove 6; a limit screw mounting plate 7 is provided with a limit screw 8 to position the shaft parts in the axial direction.

[0044] A method for clamping special-shaped shaft parts using a cylindrical laser coding fast clamping tool for special-shaped shaft parts comprises the following steps:

[0045] First, place the cylindrical surface of the special-shaped shaft part support section 111 on the V-shaped surface of the auxiliary support V-shaped groove 6;

[0046] Secondly, fit the stepped shaft 122 on the outer end surface of the large diameter section 120 of the special-shaped shaft part into the positioning hole 31 on the positioning plate 3;

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

[0048] Next, the special-shaped shaft part 5 is rotated and positioned, and 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 special-shaped shaft part;

[0049] Finally, the limiting screw 8 is tightened, and the outer end surface of the large diameter section 120 of the special-shaped shaft part is close to the inner end positioning surface of the positioning plate 3, so that the part is completely positioned.

[0050] The clamping device of the present invention has the characteristics of simple manufacture, accurate positioning, convenient operation and multi-station processing, and can realize multi-station automated production. By adopting this clamping method, the production efficiency of such processed products is high, the quality is high and the production cost is low.

[0051] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Rapid clamping tooling for laser coding of cylindrical surfaces of special-shaped shaft parts, characterized by: The invention comprises a base plate (4); a positioning plate (3) for positioning one end of a special-shaped shaft part is arranged on the base plate (4); a positioning hole (31) is arranged on the positioning plate (3); an oil-free bushing hole (32) is arranged on the positioning plate (3); an oil-free bushing (2) is arranged in the oil-free bushing hole (32); a taper pin (1) is arranged in the oil-free bushing (2); an auxiliary support V-shaped groove (6) is also arranged on the base plate (4); a limit screw mounting plate (7) is arranged on the auxiliary support V-shaped groove (6), and a limit screw (8) is arranged on the limit screw mounting plate (7); 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 tapered pin (1), and the outer end surface of the small diameter section (110) of the special-shaped shaft part is positioned in the axial direction through the limit screw (8) on the limit screw mounting plate (7).

2. The rapid clamping tool for laser marking cylindrical surface of special-shaped shaft parts according to claim 1 is characterized by: The auxiliary support V-shaped groove (6) is provided with a limit screw mounting plate positioning hole (61) for fixedly connecting the auxiliary support V-shaped groove (6) and the limit screw mounting plate (7).

3. The rapid clamping tool for laser marking cylindrical surface of special-shaped shaft parts according to claim 2 is characterized by: The positioning holes (61) of the limit screw mounting plate are through holes, and there are two of them, which are distributed above and below the center line of the cross section of the auxiliary support V-shaped groove (6).

4. The rapid clamping tool for laser marking cylindrical surface of special-shaped shaft parts according to claim 3 is characterized by: The limit screw mounting plate (7) is a sheet metal part with a Z-shaped cross section.

5. The rapid clamping tool for laser marking cylindrical surface of special-shaped shaft parts according to claim 4 is characterized in that: The first side plate A of the limit screw mounting plate (7) is parallel to the third side plate C of the limit screw mounting plate (7); the first side plate A of the limit screw mounting plate (7) and the third side plate C of the limit screw mounting plate (7) are respectively perpendicular to the second side plate B of the limit screw mounting plate (7); the first side plate A of the limit screw mounting plate (7) is fixedly connected with the auxiliary support V-shaped groove (6) by bolts through the limit screw mounting plate positioning hole (61); a screw hole (71) is provided on the mid-vertical line of the third side plate C of the limit screw mounting plate (7); the limit 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.

6. The rapid clamping tool for laser marking cylindrical surface of special-shaped shaft parts according to claim 5 is characterized by: The cross section of the oil-free bushing (2) is T-shaped; a flange (21) is provided on the oil-free bushing (2); the cross section of the flange (21) is a quadrilateral with two pairs of parallel sides and two pairs of symmetrical arcs; two symmetrical flange holes for fixing and connecting the oil-free bushing (2) and the positioning plate (3) are provided on the flange (21) of the oil-free bushing (2); the oil-free bushing (2) plays a guiding and supporting role for the taper pin (1).

7. The rapid clamping tool for laser marking cylindrical surfaces of special-shaped shaft parts according to claim 6 is characterized by: The tapered pin (1) is a stepped shaft; the small diameter section (11) of the tapered pin passes through the inner hole of the oil-free bushing (2) and cooperates with the second eccentric hole (121) on the outer end surface of the large diameter section (120) of the positioning special-shaped shaft part.

8. The rapid clamping tool for laser marking cylindrical surfaces of special-shaped shaft parts according to claim 7 is characterized by: A symmetrical flat portion (12) is arranged on the large diameter section of the cone pin for easy handholding.

9. The rapid clamping tool for laser marking cylindrical surfaces of special-shaped shaft parts according to claim 8 is characterized by: There is a gap between the small diameter section (11) of the taper pin and the second eccentric hole (121) on the outer end surface of the large diameter section (120) of the positioning special-shaped shaft part.

10. The rapid clamping tool for laser marking cylindrical surfaces of special-shaped shaft parts according to claim 9 is characterized in that: The bottom of the base plate (4) is provided with fixing screw holes.

Images