Rocker arm shaft hole position degree testing fixture for milling machine

Abstract

The utility model discloses a rocker arm shaft hole location degree gauge for a milling machine, which comprises a detection platform, a row of a plurality of supporting grooves are arranged on the upper end face of the detection platform, and the supporting grooves are V-shaped; the detection platform is provided with a plurality of rapid clamps, two ends of the detection platform are provided with end portion limiting blocks, and each end portion limiting block is provided with a first detection hole corresponding to an end face to-be-detected hole at two ends of a rockshaft product; the two sides of the detection platform are provided with side limiting blocks. Each side limiting block is provided with a second detection hole corresponding to a to-be-detected hole in the axial side face of the rocker arm shaft product. A plurality of lower supporting seats are arranged on the upper end face of the detection platform, third detection holes are formed in the lower supporting seats, and the third detection holes correspond to top to-be-detected holes in the radial direction of the rocker arm shaft product. According to the utility model, the hole detection position degrees of the shaft-shaped rockshaft in multiple directions can be detected, and positioning is easy.

Description

Technical Field

[0001] The utility model relates to the field of detection fixtures, in particular to a rocker arm shaft hole position detection fixture used for a milling machine. Background Art

[0002] There will be multiple holes (such as oil holes, mounting holes, etc.) machined on the rocker arm shaft product. The through holes are specifically distributed on the upper end face, both end faces and the side faces on the outer circumference. After the holes are machined, the number and position of the holes will be inspected. For the detection of the through hole position of the rocker arm, a checking fixture is used. For example, the utility model patent with the authorization announcement date: 2018.01.23 and the authorization announcement number: CN206919790U discloses a checking fixture for detecting the position of the rocker arm oil hole. It is necessary to use the reference shaft on the base to penetrate the rocker arm shaft mounting hole of the rocker arm to preliminarily fix the rocker arm. In addition, the rocker arm can be reliably clamped on the base by using the limit block and the first guide block fixed on the base and the positioning pin shaft. However, this checking fixture cannot detect the positions of multiple holes on the shaft-shaped rocker arm shaft. Utility Model Content

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a rocker arm shaft hole position detection fixture for milling machines, which can detect the position of the hole of a shaft-shaped rocker arm shaft in multiple directions and is easy to position.

[0004] In order to achieve the above purpose, one of the technical solutions adopted by the present invention is: a rocker arm shaft hole position inspection tool for a milling machine, comprising a detection platform, a row of multiple support grooves is provided on the upper end surface of the detection platform, and the support grooves are V-shaped; a plurality of quick clamps are provided on the detection platform, and end limit blocks are provided at both ends of the detection platform, and each of the end limit blocks is provided with a first detection hole corresponding to the end face holes to be detected at both ends of the rocker arm shaft product; side limit blocks are provided on both sides of the detection platform, and each of the side limit blocks is provided with a second detection hole corresponding to the side holes to be detected in the axial direction of the rocker arm shaft product; a plurality of lower support seats are provided on the upper end surface of the detection platform, and the plurality of lower support seats correspond to the planar parts of the rocker arm shaft product, and a third detection hole is provided on the lower support seat, and the third detection hole corresponds to the top hole to be detected in the radial direction of the rocker arm shaft product.

[0005] The beneficial effect of the present invention is that, when the rocker arm shaft is inspected, it is placed on a row of V-shaped support grooves, and positioning can be performed (positioning can also be performed at the same time) by passing a position gauge through any group of the first inspection holes and the end face holes to be inspected, or the second inspection holes and the side holes to be inspected, or the third inspection holes and the top holes to be inspected. After positioning, the quick clamp is used to fix the remaining end face holes to be inspected, the side holes to be inspected, and the top holes to be inspected correspond to the first inspection holes, the second inspection holes, and the third inspection holes, respectively. During inspection, multiple position gauges are respectively passed through the corresponding first inspection holes, the end face holes to be inspected, and the corresponding second inspection holes and the side holes to be inspected, thereby realizing the detection of the positions of the holes on the end face and the side faces. The structure is simple, and no additional positioning pin is required for positioning. Positioning can be achieved by using a position gauge for inspection. The structure is simple, and the V-shaped support groove supports the rocker arm shaft, thereby improving a certain degree of fault tolerance.

[0006] Preferably, the central axis of the first detection hole is parallel to the horizontal plane.

[0007] Preferably, the central axis of the second detection hole is inclined with respect to the horizontal plane, and the second detection holes on both sides are inclined with respect to the horizontal plane at the same angle.

[0008] Preferably, there are multiple side limit blocks on both sides, and the number of the side limit blocks on one side is greater than that on the other side, and the quick clamps are spaced between the side limit blocks on the side with fewer number.

[0009] Preferably, a connecting sleeve is fixedly installed in the first and second detection holes. The connecting sleeve comprises an integrally formed tubular member and a flange. The tubular member extends through the first and second detection holes, and the flange is respectively connected to the side wall of the end stop block and the side stop block via bolts. The detachable connection allows the connecting sleeve to be replaced, protecting the first detection hole and the end surface hole to be inspected.

[0010] Preferably, the bottom of each side limit block is a vertical portion and the top is an inclined portion, and the inclined portions of the side limit blocks on both sides are symmetrically arranged.

[0011] Preferably, the minimum distance between the inclined portions on both sides is greater than the diameter of the rocker arm shaft product, ensuring that the rocker arm shaft product can be placed in multiple support grooves or removed from the inspection fixture.

[0012] Preferably, the detection platform is provided with a plurality of detection jig insertion plates, and the detection jig insertion plates are provided with a plurality of insertion holes, which are convenient for placing position inspection tools.

[0013] Preferably, the detection platform is provided with a handle to facilitate carrying the inspection tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the embodiment in conjunction with the rocker arm shaft product and the position inspection fixture;

[0015] Figure 2 This is a three-dimensional diagram of the embodiment in conjunction with the rocker shaft product;

[0016] Figure 3 is a perspective view of this embodiment;

[0017] Figure 4 It is a three-dimensional diagram of the connecting sleeve of this embodiment.

[0018] In the picture:

[0019] 1. Inspection platform; 2. Support groove; 3. Quick clamp; 4. End limit block; 5. First inspection hole; 6. Side limit block; 6a. Vertical part; 6b. Inclined part; 7. Second inspection hole; 8. Connecting sleeve; 8a. Tubular part; 8b. Flange; 9. Lower support seat; 10. Third inspection hole; 11. Inspection fixture insertion plate; 12. Insertion hole; 13. Handle; 14. Rocker shaft product; 15. Side hole to be inspected; 16. Plane part; 17. Top hole to be inspected; 18. End hole to be inspected; 19. Position inspection fixture. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0021] See Figure 1 As shown, this embodiment discloses a rocker arm shaft hole position inspection tool for a milling machine, comprising a detection platform 1, wherein a row of multiple support grooves 2 are provided on the upper end surface of the detection platform 1, and the support grooves 2 are V-shaped; a plurality of quick clamps 3 are provided on the detection platform 1, and end limit blocks 4 are provided at both ends of the detection platform 1, and each end limit block 4 is provided with a first detection hole 5 corresponding to the end surface holes 18 to be detected at both ends of the rocker arm shaft product 14, and the center axis of the first detection hole 5 is parallel to the horizontal plane, and side limit blocks 6 are provided on both sides of the detection platform 1, and each side limit block 6 is provided with a second detection hole 7 corresponding to the side hole 15 to be detected in the axial direction of the rocker arm shaft product 14, and the center axis of the second detection hole 7 is inclined to the horizontal plane, and the inclination angle of the second detection holes 7 on both sides to the horizontal plane is consistent.

[0022] A connecting sleeve 8 is fixedly installed in the first detection hole 5 and the second detection hole 7. The connecting sleeve 8 includes an integrally formed tubular part 8a and a circle of flange 8b. The tubular part 8a passes through the first detection hole 5 and the second detection hole 7. The flange 8b is respectively connected to the side wall of the end limit block 4 and the side wall of the side limit block 6 by bolt locking.

[0023] The bottom of each side limit block 6 is a vertical portion 6a and the top is an inclined portion 6b. The inclined portions 6b of the side limit blocks 6 on both sides are symmetrically arranged, and the minimum distance between the inclined portions 6b on both sides is greater than the diameter of the rocker shaft product 14.

[0024] In this embodiment, there are multiple side limit blocks 6 on both sides, and the number of side limit blocks 6 on one side is greater than the number of side limit blocks 6 on the other side. The quick clamps 3 are arranged at intervals between the side limit blocks 6 on the side with fewer numbers.

[0025] A plurality of lower support seats 9 are provided on the upper end surface of the detection platform 1, and the plurality of lower support seats 9 correspond to the planar portion 16 of the rocker shaft product 14. A third detection hole 10 is provided on the lower support seat 9, and the third detection hole 10 corresponds to the radial top hole 17 to be detected of the rocker shaft product 14.

[0026] The detection platform 1 is provided with a plurality of detection jig insertion plates 11 , the detection jig insertion plates 11 are provided with a plurality of insertion holes 12 , and the detection platform 1 is provided with a handle 13 .

[0027] The working principle of this embodiment is:

[0028] During inspection, the position gauge 19 is not inserted on the gauge, and the rocker arm shaft product 14 to be inspected is placed on multiple support grooves 2, with both ends almost limited between the two end limit blocks 4. The position of the rocker arm shaft product 14 is rotated so that the end face hole 18 to be inspected, the side hole 15 to be inspected, and the top hole 17 to be inspected of the rocker arm shaft product 14 are preliminarily corresponding to the first inspection hole 5, the second inspection hole 7, and the third inspection hole 10, respectively. Then, a position gauge 19 is randomly inserted into the end face hole 18 to be inspected and the first inspection hole 5, or the side hole 15 to be inspected and the second inspection hole 7, or the top hole 17 to be inspected and the third inspection hole 10 to achieve precise positioning. After precise positioning, multiple quick clamps 3 are quickly clamped to the rocker arm shaft product 14, and the rocker arm shaft product 14 is completely positioned. At this time, the operator can simultaneously insert the position gauge 19 into the corresponding holes with both hands to detect the position of the holes on the end face, side face, and top face. After the inspection is completed, all the position inspection tools 19 are pulled out of the corresponding holes and inserted into the insertion holes 12 of the inspection tool insertion plate 11, and the rocker shaft product 14 is removed.

[0029] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A rocker arm shaft hole position detection device for a milling machine, comprising a detection platform (1), characterized in that: The upper end surface of the detection platform (1) is provided with a row of multiple support grooves (2), and the support grooves (2) are V-shaped; The detection platform (1) is provided with a plurality of quick clamps (3), and end limit blocks (4) are provided at both ends of the detection platform (1), and each end limit block (4) is provided with a first detection hole (5) corresponding to the end surface holes (18) to be detected at both ends of the rocker shaft product (14); Side limit blocks (6) are provided on both sides of the detection platform (1), and each side limit block (6) is provided with a second detection hole (7) corresponding to a side detection hole (15) in the axial direction of the rocker shaft product (14); The upper end surface of the detection platform (1) is provided with a plurality of lower support seats (9), and the plurality of lower support seats (9) correspond to the plane portion (16) of the rocker shaft product (14); the lower support seats (9) are provided with a third detection hole (10), and the third detection hole (10) corresponds to the top hole (17) to be detected in the radial direction of the rocker shaft product (14).

2. The rocker arm shaft hole position detection fixture for a milling machine according to claim 1, characterized in that: The central axis of the first detection hole (5) is parallel to the horizontal plane.

3. The rocker arm shaft hole position detection tool for a milling machine according to claim 1, characterized in that: The central axis of the second detection hole (7) is inclined with respect to the horizontal plane, and the second detection holes (7) on both sides are inclined with respect to the horizontal plane at the same angle.

4. The rocker arm shaft hole position detection tool for a milling machine according to claim 1, characterized in that: A connecting sleeve (8) is fixedly provided in the first detection hole (5) and the second detection hole (7), and the connecting sleeve (8) comprises an integrally formed tubular member (8a) and a circle of flange (8b). The tubular member (8a) passes through the first detection hole (5) and the second detection hole (7), and the flange (8b) is respectively connected to the side wall of the end limit block (4) and the side wall of the side limit block (6) by bolt locking.

5. The rocker arm shaft hole position detection tool for a milling machine according to claim 1, characterized in that: The bottom of each side limit block (6) is a vertical portion (6a), and the top is an inclined portion (6b), and the inclined portions (6b) of the side limit blocks (6) on both sides are symmetrically arranged.

6. The rocker arm shaft hole position detection tool for a milling machine according to claim 5, characterized in that: The minimum distance between the inclined portions (6b) on both sides is greater than the diameter of the rocker shaft product (14).

7. The rocker arm shaft hole position detection tool for a milling machine according to claim 1, characterized in that: A plurality of the side limit blocks (6) are provided on both sides, and the number of the side limit blocks (6) on one side is greater than the number of the side limit blocks (6) on the other side, and the quick clamps (3) are arranged at intervals between the side limit blocks (6) on the side with the smaller number.

8. The rocker arm shaft hole position detection tool for a milling machine according to claim 1, characterized in that: A plurality of detection jig insertion plates (11) are provided on the detection platform (1), and a plurality of insertion holes (12) are provided on the detection jig insertion plates (11).

9. The rocker arm shaft hole position detection tool for a milling machine according to claim 1, characterized in that: The detection platform (1) is provided with a handle (13).

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