Quick positioning clamp for reaming positioning holes of shaft parts

Abstract

The utility model discloses a quick positioning clamp for reaming a positioning hole of a shaft part, which comprises a base, a pair of detachable V-shaped blocks are arranged on the base, a detachable pressing block is arranged on the upper portion of each V-shaped block, a positioning straight groove and a pair of positioning screw holes are arranged on the side portion of each V-shaped block, and the positioning straight grooves are communicated with the positioning screw holes. A positioning straight groove is formed in the V-shaped block, a detachable positioning pin is arranged in the positioning straight groove, the arrangement direction of the positioning pin is perpendicular to the extension direction of the positioning straight groove, and a pair of detachable check blocks is arranged on the side portion of the V-shaped block. According to the quick positioning clamp for reaming the positioning hole of the shaft part, the shaft part can be positioned in the axial direction and the circumferential direction quickly and efficiently, the machining requirements for the size and the position degree of the positioning hole are met, the machining precision of the positioning hole is guaranteed, product quality control can be better carried out, the product quality stability is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a positioning fixture, and more precisely, to a quick positioning fixture for reaming a positioning hole of a shaft-like part. Background Art

[0002] Generally, after induction hardening of the shaft body of a shaft-like part, the aperture of the positioning hole undergoes a slight deformation, the aperture tolerance is small, and the position tolerance requirement is high. A reaming process is required to meet the requirements. The position tolerance requirement of the positioning hole of the shaft-like part is relative to the center of the part shaft diameter and one side end face, and the aperture position tolerance requirement is measured by combining these two reference elements.

[0003] Currently, the reaming of the positioning hole of the existing shaft-like part is processed by manually visually determining the position of the center of the positioning hole. This method has large human errors, low work efficiency, and low precision, and needs to be improved. Content of the Utility Model

[0004] Based on this, in view of the above technical problems, it is necessary to provide a quick positioning fixture for reaming a positioning hole of a shaft-like part.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A quick positioning fixture for reaming a positioning hole of a shaft-like part, characterized in that the quick positioning fixture for reaming a positioning hole of the shaft-like part includes a base, a pair of detachable V-shaped blocks are arranged on the base, a "V"-shaped lower V-shaped groove is arranged at the top of the V-shaped block, a detachable pressing block is arranged on the upper part of the V-shaped block, a "V"-shaped upper V-shaped groove is arranged on the lower surface of the pressing block, the upper V-shaped groove is matched with the lower V-shaped groove, a positioning straight groove and a pair of positioning screw holes are arranged on the side of the V-shaped block, the positioning screw holes are located on both sides of the positioning straight groove, a detachable positioning pin is arranged in the positioning straight groove, the setting direction of the positioning pin is perpendicular to the extension direction of the positioning straight groove, a pair of detachable stoppers are arranged on the side of the V-shaped block, a through stopper screw hole is arranged on the stopper, and the stopper screw hole is connected to the positioning screw hole through a stopper screw rod.

[0007] As a preferred embodiment of the utility model, the positioning pin includes a first rod diameter, a stepped rod diameter and a second rod diameter, the first rod diameter, the stepped rod diameter and the second rod diameter are all cylindrical, a ring-shaped positioning clamping ring is arranged between the stepped rod diameter and the second rod diameter, a stopper step is arranged on the inner side of the stopper, and the stopper step is matched with the positioning clamping ring.

[0008] As a preferred embodiment of the present utility model, a pair of seat holes are provided at the bottom of the V-shaped block, and a plurality of connection holes are provided on the base, and the connection holes are matched with the seat holes.

[0009] As a preferred embodiment of the present utility model, a pair of lower screw holes are provided at the top of the V-shaped block, and an upper screw hole is provided at each end of the pressing block, and the upper screw hole and the lower screw hole are connected by a pressing block screw.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] The present utility model provides a quick positioning fixture for reaming the positioning holes of shaft parts. The quick positioning fixture for reaming the positioning holes of shaft parts of the present utility model can quickly and efficiently position the shaft parts axially and circumferentially, meet the processing requirements of the size and position degree of the positioning holes, ensure the processing accuracy of the positioning holes, so as to better control the product quality, improve the stability of product quality, and improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 is a schematic perspective view of the quick positioning fixture for reaming the positioning holes of shaft parts of the present utility model;

[0014] Figure 2 is Figure 1 a schematic exploded perspective view of the quick positioning fixture for reaming the positioning holes of shaft parts in ;

[0015] Figure 3 is Figure 2 a schematic perspective view of the positioning pin of the quick positioning fixture in ;

[0016] Figure 4 is Figure 2 a schematic perspective view of the stop block of the quick positioning fixture in ;

[0017] Figure 5 is Figure 1 a schematic view of the use of the quick positioning fixture for reaming the positioning holes of shaft parts in ;

[0018] Figure 6 is Figure 5 a schematic view of the use of the quick positioning fixture for reaming the positioning holes of shaft parts in, at this time in the explosion mode;

[0019] The markings in the figure are explained as follows: 1. Base; 11. Connecting hole; 2. V-shaped block; 21. Seat hole; 22. Lower screw hole; 23. Lower V-shaped groove; 24. Positioning straight groove; 25. Positioning screw hole; 3. Pressure block; 30. Upper V-shaped groove; 31. Upper screw hole; 4. Positioning pin; 41. First rod diameter; 42. Step rod diameter; 43. Positioning clamping ring; 44. Second rod diameter; 5. Stop block; 51. Stop block screw hole; 6. Pressure block screw; 8. Stop block screw rod. Specific implementation mode

[0020] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0021] As Figure 1 and Figure 2 shown, the quick positioning fixture for reaming the positioning hole of the shaft part includes a base 1, a pair of detachable V-shaped blocks 2 are provided on the base 1, a "V"-shaped lower V-shaped groove 23 is provided at the top of the V-shaped block 2, a detachable pressure block 3 is provided at the upper part of the V-shaped block 2, a "V"-shaped upper V-shaped groove 30 is provided on the lower surface of the pressure block 3, the upper V-shaped groove 30 is matched with the lower V-shaped groove 23, a positioning straight groove 24 and a pair of positioning screw holes 25 are provided on the side of the V-shaped block 2, the positioning screw holes 25 are located on both sides of the positioning straight groove 24, a detachable positioning pin 4 is provided in the positioning straight groove 24, and the setting direction of the positioning pin 4 is perpendicular to the extension direction of the positioning straight groove 24, and a pair of detachable stop blocks 5 are provided on the side of the V-shaped block 2.

[0022] As Figure 3 shown, the positioning pin 4 includes a first rod diameter 41, a step rod diameter 42 and a second rod diameter 44, the first rod diameter 41, the step rod diameter 42 and the second rod diameter 44 are all cylindrical, and an annular positioning clamping ring 43 is provided between the step rod diameter 42 and the second rod diameter 44.

[0023] As Figure 4 shown, a through stop block screw hole 51 is provided on the stop block 5, and the stop block screw hole 51 is connected to the positioning screw hole 25 through a stop block screw rod 8. A stop block step 52 is provided on the inner side of the stop block 5, and the stop block step 52 is matched with the positioning clamping ring 43.

[0024] In addition, a pair of seat holes 21 are provided at the bottom of the V-shaped block 2, a plurality of connecting holes 11 are provided on the base 1, and the connecting holes 11 are matched with the seat holes 21.

[0025] A pair of lower screw holes 22 are provided at the top of the V-shaped block 2, a upper screw hole 31 is provided at both ends of the pressure block 3, and the upper screw hole 31 is connected to the lower screw hole 22 through a pressure block screw 6.

[0026] As Figure 5 and Figure 6 shown below, the usage method of the quick positioning fixture for reaming the positioning holes of the shaft parts will be described, including the steps:

[0027] Step S1: Slowly insert the positioning hole 71 of the part 7 onto the first rod diameter 41 of the positioning pin 4. The end face 72 inside the part contacts the end face of the stepped rod diameter 42 of the positioning pin 4, and the rod body 73 is slowly placed into the lower V-groove 23 of the V-block 2 to achieve the circumferential positioning of the part 7;

[0028] Step S2: Make the upper V-groove 30 of the pressure block 3 contact the front rod body 73 and the rear rod body 74 of the part 7, and tighten the four pressure block screws 6 at the screw holes 31 respectively to achieve the axial positioning of the part 7;

[0029] Step S3: Start the machine tool button and start reaming the positioning hole 75 for one week;

[0030] When the product model is changed, according to the requirements of different part lengths, different connection holes 11 of the appropriate base 1 can be selected to re-fix the V-block 2 to meet the processing of parts with different lengths. According to the requirements of the size of the positioning hole 71 of different parts or the different center positions of the positioning hole 71, the positioning pin 4 can be removed and replaced or moved up and down, and the fixture body does not need to be changed, thus reducing the manufacturing cost of the processing fixture.

[0031] The quick positioning fixture for reaming the positioning holes of the shaft parts of the present utility model can quickly and efficiently position the shaft parts axially and circumferentially, meet the processing requirements of the size and position degree of the positioning holes, ensure the processing accuracy of the positioning holes, so as to better carry out product quality control, improve the product quality stability, and improve the production efficiency.

[0032] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all the embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application.

Claims

1. A quick positioning fixture for reaming positioning holes of shaft parts, characterized in that: The quick positioning fixture for boring positioning holes of shaft parts comprises a base (1), the base (1) is provided with a pair of detachable V-shaped blocks (2), the top of the V-shaped blocks (2) is provided with a "V"-shaped lower V-shaped groove (23), the upper part of the V-shaped blocks (2) is provided with a detachable pressing block (3), the lower surface of the pressing block (3) is provided with a "V"-shaped upper V-shaped groove (30), the upper V-shaped groove (30) is matched with the lower V-shaped groove (23), and the side of the V-shaped block (2) is provided with a positioning straight groove (24 ) and a pair of positioning screw holes (25), the positioning screw holes (25) are located on both sides of the positioning straight groove (24), a detachable positioning pin (4) is provided in the positioning straight groove (24), the setting direction of the positioning pin (4) is perpendicular to the extension direction of the positioning straight groove (24), and a pair of detachable stoppers (5) are provided on the side of the V-shaped block (2), and a through stopper screw hole (51) is provided on the stopper (5), and the stopper screw hole (51) is connected to the positioning screw hole (25) through a stopper screw rod (8).

2. The rapid positioning fixture for reaming positioning holes of shaft parts according to claim 1 is characterized in that: The positioning pin (4) comprises a first rod diameter (41), a step rod diameter (42) and a second rod diameter (44); the first rod diameter (41), the step rod diameter (42) and the second rod diameter (44) are all cylindrical; an annular positioning clamp ring (43) is provided between the step rod diameter (42) and the second rod diameter (44); a block step (52) is provided on the inner side of the block (5); the block step (52) cooperates with the positioning clamp ring (43).

3. The rapid positioning fixture for reaming positioning holes of shaft parts according to claim 1 is characterized in that: A pair of seat holes (21) are provided at the bottom of the V-shaped block (2), and a plurality of connection holes (11) are provided on the base (1), wherein the connection holes (11) match the seat holes (21).

4. The rapid positioning fixture for reaming positioning holes of shaft parts according to claim 1, characterized in that: A pair of lower screw holes (22) are provided at the top of the V-shaped block (2), and an upper screw hole (31) is provided at both ends of the pressing block (3). The upper screw hole (31) is connected to the lower screw hole (22) via a pressing block screw (6).

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