Clamping and positioning device for batch shot blasting treatment of Almen test pieces

Abstract

The utility model provides an Almen test piece batch shot blasting processing clamping positioning device, which comprises a base disc, a pin rod, a positioning plate and a supporting device, the supporting device comprises a bottom plate and a top plate, the top plate is fixedly connected with the base disc, the bottom plate is fixedly connected with a working table of a machine tool, a first center hole is arranged on the surface of the base disc, and second center holes are arranged on the surfaces of the bottom plate and the top plate. The workbench of the machine tool is further provided with a datum hole, the first center hole, the second center hole and the datum hole are connected together in series through the pin rod, the surface of the base disc is further provided with a guide groove, the guide groove is communicated with the first center hole, the length direction of the guide groove is consistent with the radial direction of the first center hole, and one end of the positioning plate is fixedly connected to a groove opening of the guide groove. And the other end of the positioning plate is used for supporting the Almen test piece. By the adoption of the technical scheme, a plurality of Almen test pieces can be clamped on the surface of the base disc at a time, the clamping and positioning precision of the Almen test pieces on the clamp is improved, and shot blasting treatment results of the Almen test pieces in the same batch are kept highly consistent.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of clamp, especially relates to a batch shot peening treatment clamping and positioning device of Almen test piece. BACKGROUND

[0002] Almen test piece plays an important role in the quality control of shot peening technology. After one side of the test piece is impacted by a shot, plastic deformation occurs in the surface layer, forming a spherical curved surface. In the measurement of this curvature, the arc height from the reference surface to the highest point of the spherical surface is the characteristic index of the Almen test piece. The Almen test piece is designed as a standard block, usually made of SAE1070 spring material. When the Almen test piece is subjected to shot peening processing, the relative angle of the Almen test piece and the nozzle, as well as the relative angle of the shot peened surface of the part and the nozzle, should be the same or similar, which requires the use of a high-precision clamp to fix the Almen test piece.

[0003] For example, the patent document with publication number "CN204413871U" discloses an adjustable Almen test piece fixing clamp, which includes two completely symmetrical dials, a cavity for connection and support, an Almen test piece fixing block, and a pointer. The dials are connected to the cavity through a stud bolt, and a ring-shaped guide groove is provided on the surface of the dial. The Almen test piece fixing block is embedded in the ring-shaped guide groove and can move circularly relative to the dial. A reference mark is provided on the Almen test piece fixing block for alignment with the dial. The rotation point of the pointer is connected to the dial through an internal hexagonal screw, and the indication point of the pointer fixes the Almen test piece fixing block in the ring-shaped guide groove through an internal hexagonal screw. With this patent technology, different arc height shot peening results can be obtained by adjusting the clamping direction of the Almen test piece. However, when multiple Almen test pieces are subjected to shot peening treatment, it is necessary to make the results of each shot peening as similar as possible, and in addition, it is necessary to make the shot peening intensity and angle as consistent as possible. Therefore, a high-precision clamp is required to fix the Almen test piece. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a batch shot peening treatment clamping and positioning device for Almen test pieces.

[0005] The utility model is implemented through the following technical solutions.

[0006] The utility model provides a kind of armen test piece batch shot peening processing clamping positioning device, including base disc, pin rod, positioning plate and supporting device, the supporting device includes bottom plate and top plate, the top plate is solidly connected with the base disc, the bottom plate is solidly connected with the workstation of machine tool, the surface of the base disc is equipped with first center hole, the surface of the bottom plate and top plate is equipped with second center hole, the workstation of machine tool is also equipped with reference hole, the pin rod is connected together in series with the first center hole, second center hole and reference hole, the surface of the base disc is also equipped with guide slot, the guide slot is communicated with first center hole, and the length direction of the guide slot is consistent with the radial direction of the first center hole, one end of the positioning plate is solidly connected at the notch of the guide slot, the other end of the positioning plate is used to support armen test piece, the surface of the base disc is also equipped with multiple main scale lines, multiple main scale lines are equidistantly arranged along the length direction of the guide slot, the surface of the positioning plate is also equipped with multiple secondary scale lines, multiple secondary scale lines are equidistantly arranged along the height direction of the positioning plate.

[0007] The machine tool is a vertical lathe.

[0008] The interval of any two adjacent main scale lines is 1mm.

[0009] The interval of any two adjacent secondary scale lines is 1mm.

[0010] The supporting device further includes multiple supporting columns, and the supporting columns are solidly connected between the bottom plate and the top plate, and the multiple supporting columns are equidistantly arranged around the second center hole.

[0011] The bottom plate and the top plate are both disc-shaped.

[0012] The armen test piece batch shot peening processing clamping positioning device further includes a locking screw and a locking nut, the guide slot is overall inverted T-shaped, the locking nut is accommodated in the guide slot, the locking screw and the locking nut are connected together through a threaded pair, and the locking screw penetrates the positioning plate and the top plate respectively.

[0013] The armen test piece batch shot peening processing clamping positioning device further includes an adjusting bolt, one end of the adjusting bolt is screwed with the top plate, the other end of the adjusting bolt serves as a top head, the top head abuts against the surface of the positioning plate, and the adjusting bolt also penetrates the guide slot.

[0014] The number of the guide slots is more than 4.

[0015] The positioning plate is overall L-shaped.

[0016] The utility model discloses beneficial effect lies in: adopt the technical scheme of the utility model, on one hand, the user can read the value of main scale line and vice scale line, make the Almen test piece as possible consistently clamped and fixed on the base disc surface, in addition, the base disc surface can clamp a plurality of Almen test pieces at one time, and the base disc, bottom plate, top plate and the workbench of machine tool are connected together through the pin rod, make a plurality of Almen test pieces can better accurate centering distribution with the center axis of the workbench of machine tool as the symmetry center, improve the clamping positioning accuracy of Almen test piece on the clamp, when carrying out shot peening strengthening treatment to Almen test piece through the spray gun, only the shot peening equipment relevant technical parameter maintains constant, makes shot peening intensity, shot peening angle maintain unchangeable, makes the same batch Almen test piece shot peening treatment result keep high consistency, improves workpiece service performance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is the plan view of the base disc of the utility model;

[0019] Figure 3 It is the plan view of the top plate of the utility model;

[0020] Figure 4 It is the front view of the positioning plate of the utility model;

[0021] Figure 5 It is the utility model Figure 1 The local enlarged view of I place in;

[0022] Figure 6 It is the local enlarged view of II place in the utility model Figure 1 .

[0023] In the drawing: 1-base disc, 2-pin rod, 3-positioning plate, 4-supporting device, 5-bottom plate, 6-top plate, 7-machine tool, 8-first center hole, 9-second center hole, 10-guide groove, 11-Almen test piece, 12-main scale line, 13-vice scale line, 14-supporting column, 15-locking screw, 16-locking nut, 17-adjusting bolt, 18-top head. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model is further described below, but the scope of protection is not limited to the described.

[0025] As Figures 1 to 6The utility model provides a kind of batch shot peening processing clamping and positioning device for Almen test piece, for carrying out shot peening strengthening treatment to Almen test piece, including base disc 1, pin rod 2, positioning plate 3 and supporting device 4, supporting device 4 includes bottom plate 5 and top plate 6, top plate 6 is fixedly connected with base disc 1, bottom plate 5 is fixedly connected with the workbench of machine tool 7, the surface of base disc 1 is equipped with first center hole 8, the surface of bottom plate 5 and top plate 6 is equipped with second center hole 9, the workbench of machine tool 7 is also equipped with reference hole, pin rod 2 connects first center hole 8, second center hole 9 and reference hole together in series, the surface of base disc 1 is also equipped with guide slot 10, guide slot 10 is communicated with first center hole 8, and the length direction of guide slot 10 is consistent with the radial direction of first center hole 8, one end of positioning plate 3 is fixedly connected at the notch of guide slot 10, the other end of positioning plate 3 is used to support Almen test piece 11, the surface of base disc 1 is also equipped with multiple main scale lines 12, multiple main scale lines 12 are equidistantly arranged along the length direction of guide slot 10, the surface of positioning plate 3 is also equipped with multiple secondary scale lines 13, multiple secondary scale lines 13 are equidistantly arranged along the height direction of positioning plate 3.

[0026] The technical scheme of the utility model, on the one hand, the user can read the numerical value of the main scale line and the secondary scale line, so that the Almen test piece is clamped and fixed on the surface of the base disc as uniformly as possible. In addition, the surface of the base disc can clamp multiple Almen test pieces at a time, and the base disc, the bottom plate, the top plate and the workbench of the machine tool are connected together through the pin rod, so that the multiple Almen test pieces can be better distributed around the center axis of the workbench of the machine tool as the symmetrical center, improving the clamping and positioning accuracy of the Almen test piece on the clamp. When the Almen test piece and the clamp are gradually rotated with the workbench of the machine tool, and each Almen test piece is shot peening strengthening treated by the spray gun, as long as the relevant technical parameters of the shot peening equipment remain constant, the same batch of Almen test pieces clamped on the surface of the base disc are shot peening strengthened one by one. As long as the shot peening intensity and angle remain unchanged, the shot peening treatment results of the same batch of Almen test pieces remain highly consistent, improving the performance of the workpiece.

[0027] Specifically, the machine tool 7 is a vertical lathe. After the Almen test piece is clamped, the machine tool can be started to rotate the Almen test piece and the clamp together with the workbench of the machine tool for at least 5 turns to adjust the centering accuracy of the Almen test piece relative to the workbench of the machine tool. According to the technical scheme of the utility model, the workbench of the vertical lathe is connected with the main shaft, and the good centering characteristics of the workbench of the vertical lathe are utilized, so that the same batch of Almen test pieces can be more accurately clamped on the surface of the base disc of the clamp, thereby improving the clamping and positioning accuracy of the Almen test piece and making the shot peening treatment results of the same batch of Almen test pieces remain highly consistent, improving the performance of the workpiece.

[0028] In addition, the interval of any two adjacent main scale lines 12 is 1mm. The interval of any two adjacent secondary scale lines 13 is 1mm. By the technical scheme of the utility model, the user can read the values of the main scale lines and the secondary scale lines, so that the Almen test pieces can be fixed on the surface of the base disc as uniformly as possible.

[0029] In addition, the supporting device 4 further comprises a plurality of supporting columns 14, which are fixed between the bottom plate 5 and the top plate 6 and are arranged at equal intervals around the second center hole 9. Preferably, the bottom plate 5 and the top plate 6 are both disc-shaped.

[0030] Specifically, the Almen test piece batch shot peening clamping positioning device further comprises a locking screw 15 and a locking nut 16. The guide groove 10 is in the shape of an inverted T. The locking nut 16 is accommodated in the guide groove 10. The locking screw 15 and the locking nut 16 are connected together through a threaded pair. The locking screw 15 penetrates the positioning plate 3 and the top plate 6 respectively. The Almen test piece batch shot peening clamping positioning device further comprises an adjusting bolt 17. One end of the adjusting bolt 17 is screwed with the top plate 6. The other end of the adjusting bolt 17 serves as a top head 18, which abuts against the surface of the positioning plate 3. The adjusting bolt 17 also penetrates the guide groove 10. Preferably, the number of the guide grooves 10 is more than 4. The positioning plate 3 is in the shape of L. By the technical scheme of the utility model, the angle of the Almen test piece relative to the surface of the base disc can be adjusted by rotating the adjusting bolt 7, so that the processing results of the Almen test piece with different shot peening angles can be obtained.

Claims

1. A batch shot peening fixture for Almen strip, characterized by: The device comprises a base plate (1), a pin rod (2), a positioning plate (3) and a supporting device (4), the supporting device (4) comprises a bottom plate (5) and a top plate (6), the top plate (6) is fixedly connected with the base plate (1), the bottom plate (5) is fixedly connected with the workbench of a machine tool (7), the surface of the base plate (1) is provided with a first center hole (8), the surfaces of the bottom plate (5) and the top plate (6) are provided with a second center hole (9), the workbench of the machine tool (7) is also provided with a reference hole, the pin rod (2) connects the first center hole (8), the second center hole (9) and the reference hole together in series, the surface of the base plate (1) is also provided with a guide groove (10), the guide groove (10) is communicated with the first center hole (8), and the length direction of the guide groove (10) is consistent with the radial direction of the first center hole (8), one end of the positioning plate (3) is fixedly connected at the slot opening of the guide groove (10), the other end of the positioning plate (3) is used for supporting an Almen test piece (11), the surface of the base plate (1) is also provided with a plurality of main scale lines (12), the plurality of main scale lines (12) are arranged at equal intervals along the length direction of the guide groove (10), and the surface of the positioning plate (3) is also provided with a plurality of secondary scale lines (13), the plurality of secondary scale lines (13) are arranged at equal intervals along the height direction of the positioning plate (3).

2. The batch shot peening fixture for Almen strips of claim 1 wherein: The machine tool (7) is a vertical lathe.

3. The batch shot peening fixture for Almen strips of claim 1 wherein: The interval between any two adjacent main scale lines (12) is 1 mm.

4. The batch shot peening fixture for Almen strips of claim 1 wherein: The interval between any two adjacent secondary scale lines (13) is 1 mm.

5. The batch shot peening fixture for Almen strips of claim 1 wherein: The supporting device (4) further comprises a plurality of supporting columns (14), the supporting columns (14) are fixedly connected between the bottom plate (5) and the top plate (6), and the plurality of supporting columns (14) are arranged at equal intervals around the periphery of the second center hole (9).

6. The batch shot peening fixture for Almen strips of claim 5 wherein: The bottom plate (5) and the top plate (6) are both disc-shaped.

7. The batch shot peening fixture for Almen strips of claim 1 wherein: The device further comprises a locking screw (15) and a locking nut (16), the guide groove (10) is overall inverted T-shaped, the locking nut (16) is contained in the guide groove (10), the locking screw (15) and the locking nut (16) are connected together through a threaded pair, and the locking screw (15) penetrates through the positioning plate (3) and the top plate (6) respectively.

8. The batch shot peening fixture for Almen strips of claim 7 wherein: The device further comprises an adjusting bolt (17), one end of the adjusting bolt (17) is screwed with the top plate (6), the other end of the adjusting bolt (17) is used as a top head (18), the top head (18) abuts against the surface of the positioning plate (3), and the adjusting bolt (17) also penetrates through the guide groove (10).

9. A batch shot peening fixture for Almen strips as claimed in claim 1 or 7 or 8 wherein: The number of the guide grooves (10) is more than 4.

10. The batch shot peening fixture for Almen strips as set forth in claim 1 or 7 or 8, wherein: The positioning plate (3) is overall L-shaped.

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