Cylindrical surface side hole position accuracy testing fixture

Abstract

The utility model discloses a cylindrical surface side hole position accuracy testing fixture, and belongs to the technical field of testing fixtures. A cylindrical surface side hole location degree gauge comprises a base; the V-shaped block is detachably connected to the base; wherein the V-shaped block is rotatably connected with a gland, the V-shaped block and the gland are both provided with V-shaped grooves, and the two V-shaped grooves are used for fixing a workpiece to be tested; the positioning pin shaft is connected to the V-shaped block in a sliding manner and is used for positioning a workpiece to be detected; the measuring rod bracket is fixedly connected to the V-shaped block; wherein the detection rod support is slidably connected with a detection rod, the detection rod support is in threaded connection with a first plum blossom handle screw rod, and the first plum blossom handle screw rod is used for locking the detection rod support; according to the utility model, three-coordinate detection is replaced, the side holes of the cylindrical parts can be detected on a large scale, the detection efficiency is higher, and the technical requirements on the detection environment and detection personnel are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection tools, in particular to a cylindrical side hole position inspection tool. Background Art

[0002] There are side holes processed on the cylindrical surface, and the position of the side holes relative to the first reference (cylindrical axis) and the second reference (cylindrical end face) has certain detection requirements;

[0003] Currently, the mainstream detection method is still based on three-coordinate detection. Although three-coordinate detection has high accuracy, it is only suitable for sampling or small-batch inspection. It is not so suitable for large-scale mass production or full inspection. In addition, three-coordinate detection has high requirements for the environment and personnel. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a cylindrical side hole position measuring tool.

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

[0006] A cylindrical side hole position gauge, comprising: a base; a V-shaped block detachably connected to the base; wherein a pressure cover is rotatably connected to the V-shaped block, and both the V-shaped block and the pressure cover are provided with V-shaped grooves, and the two V-shaped grooves are used to fix the workpiece to be measured; a positioning pin shaft slidably connected to the V-shaped block, and the positioning pin shaft is used to position the workpiece to be measured; a measuring rod bracket fixedly connected to the V-shaped block; wherein a detection rod is slidably connected to the measuring rod bracket, and a first plum blossom handle screw is threadedly connected to the measuring rod bracket, and the first plum blossom handle screw is used to lock the measuring rod bracket.

[0007] Preferably, a spring clamping shaft is threadedly connected to the V-block, a first spring is fixedly connected to the spring clamping shaft, and one end of the first spring away from the spring clamping shaft is fixedly connected to the positioning pin shaft.

[0008] Preferably, the V-block is rotatably connected to the pressure cover via a rotating pin, both ends of the rotating pin are detachably connected with shaft spring retaining rings, one end of the pressure cover away from the rotating pin is threadedly connected with a knurled screw, and the knurled screw is threadedly connected to the V-block.

[0009] Preferably, it also includes a dial indicator bracket, the dial indicator component is detachably connected to the dial indicator bracket, the base is detachably connected to a guide seat, the guide seat is slidably connected to a floating shaft, one end of the floating shaft is in contact with the dial indicator component, and the other end is in contact with the workpiece to be measured.

[0010] Preferably, a disc-shaped measuring head is fixedly connected to the floating shaft.

[0011] Preferably, the guide seat is detachably connected with a guide block, the floating shaft is slidably connected to the guide block, a second spring is sleeved on the floating shaft, and two ends of the second spring are respectively connected to the guide block and the floating shaft.

[0012] Preferably, the bottom of the base is fixedly connected with a foot.

[0013] Preferably, a second plum blossom handle screw is threadedly connected to the dial indicator bracket.

[0014] Compared with the prior art, the utility model provides a cylindrical side hole position inspection tool, which has the following beneficial effects:

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model replaces the three-coordinate detection, can detect the side holes of cylindrical parts in large quantities, has higher detection efficiency, and reduces the technical requirements of the detection environment and detection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of a cylindrical side hole position inspection fixture proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a cylindrical side hole position inspection tool proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a cylindrical side hole position inspection tool proposed by the utility model;

[0019] Figure 4 The utility model is a schematic structural diagram of a positioning pin shaft of a cylindrical side hole position inspection tool.

[0020] In the figure: 1. base; 2. V-block; 3. workpiece to be measured; 4. measuring rod; 5. spring clamping shaft; 6. first spring; 7. positioning pin shaft; 8. pressure cover; 9. rotating pin shaft; 10. dial indicator component; 11. measuring rod bracket; 12. knurled screw; 13. foot; 14. measuring head; 15. guide seat; 16. floating shaft; 17. guide block; 18. dial indicator bracket; 19. spring retaining ring for shaft; 20. first plum blossom handle screw; 21. second plum blossom handle screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Embodiment 1:

[0023] Reference Figure 1-3 A cylindrical side hole position gauge comprises: a base 1; a V-shaped block 2 detachably connected to the base 1 by bolts; wherein a pressure cover 8 is rotatably connected to the V-shaped block 2, and both the V-shaped block 2 and the pressure cover 8 are provided with V-shaped grooves, and the two V-shaped grooves are used to fix the workpiece 3 to be measured; a positioning pin 7 slidably connected to the V-shaped block 2, and the positioning pin 7 is used to position the workpiece 3 to be measured; a measuring rod bracket 11 fixedly connected to the V-shaped block 2; wherein a detection rod 4 is slidably connected to the measuring rod bracket 11, and a first plum blossom handle screw 20 is threadedly connected to the measuring rod bracket 11, and the first plum blossom handle screw 20 is used to lock the measuring rod bracket 11.

[0024] A spring pressing shaft 5 is threadedly connected to the V-block 2 , a first spring 6 is fixedly connected to the spring pressing shaft 5 , and one end of the first spring 6 away from the spring pressing shaft 5 is fixedly connected to a positioning pin shaft 7 .

[0025] The V-block 2 is rotatably connected to the pressure cover 8 via a rotating pin 9. Both ends of the rotating pin 9 are detachably connected with shaft spring retaining rings 19. One end of the pressure cover 8 away from the rotating pin 9 is threadedly connected with a knurled screw 12, and the knurled screw 12 is threadedly connected to the V-block 2.

[0026] It also includes a dial indicator bracket 18, to which the dial indicator component 10 is detachably connected. Specifically, a second plum blossom handle screw 21 is threadedly connected to the dial indicator bracket 18, and the opening at the upper end of the dial indicator bracket 18 can be adjusted by twisting the second plum blossom handle screw 21, so as to facilitate the placement and removal of the dial indicator component 10. A guide seat 15 is detachably connected to the base 1, and a floating shaft 16 is slidably connected to the guide seat 15, one end of the floating shaft 16 is in contact with the dial indicator component 10, and the other end is in contact with the workpiece 3 to be measured.

[0027] A disc-shaped measuring head 14 is fixedly connected to the floating shaft 16 .

[0028] The guide seat 15 is detachably connected with a guide block 17 via bolts. The floating shaft 16 is slidably connected to the guide block 17 . A second spring is sleeved on the floating shaft 16 . Two ends of the second spring are respectively connected with the guide block 17 and the floating shaft 16 .

[0029] The bottom of the base 1 is fixedly connected with a foot 13;

[0030] When using the device, first adjust the position of the spring compression shaft 5 on the V-block 2 by rotating it, and then adjust the length of the upper end of the positioning pin shaft 7 extending out of the V-block 2, and a waist-shaped groove is provided on the positioning pin shaft 7, and a waist-shaped shaft is inserted on the V-block 2. The waist-shaped groove slides on the waist-shaped shaft to guide the sliding of the positioning pin shaft 7;

[0031] At this time, the workpiece 3 to be measured is placed in the V-shaped groove on the V-shaped block 2, and the workpiece 3 to be measured is rotated so that the positioning pin shaft 7 is inserted into the side hole of the workpiece 3 to limit the workpiece 3 to prevent the workpiece 3 from rotating;

[0032] At this time, cover the gland 8 and lock the gland 8 and the V-block 2 by means of the knurled screw 12, thereby locking the workpiece 3 to be measured;

[0033] Slide the detection rod 4 up and down so that the detection rod 4 slides down through the slot on the pressure cover 8 and is inserted into the detection hole on the workpiece 3 to be tested. If the detection rod 4 can pass through the detection hole, it is qualified; if it cannot pass through the detection hole, it is unqualified;

[0034] The end face of the workpiece 3 to be measured causes the probe 14 to be subjected to force, and the probe 14 drives the floating shaft 16 to slide on the guide seat 15. The other end of the floating shaft 16 can push the head of the dial indicator 10 to realize the change of the reading of the dial indicator 10, thereby achieving the purpose of measuring the hole distance from the end face of the workpiece 3 to the side hole.

[0035] The utility model replaces the three-coordinate detection, can detect the side holes of cylindrical parts in batches, has higher detection efficiency, and reduces the technical requirements of the detection environment and detection personnel.

[0036] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cylindrical side hole position inspection tool, characterized in that: include: Base (1); A V-shaped block (2) detachably connected to the base (1); The V-shaped block (2) is rotatably connected to a pressure cover (8), and both the V-shaped block (2) and the pressure cover (8) are provided with V-shaped grooves, and the two V-shaped grooves are used to fix the workpiece (3) to be measured; A positioning pin (7) slidably connected to the V-shaped block (2), the positioning pin (7) being used to position the workpiece (3) to be measured; A measuring rod support (11) fixedly connected to the V-shaped block (2); The measuring rod support (11) is slidably connected to a measuring rod (4), and the measuring rod support (11) is threadedly connected to a first plum blossom handle screw (20), and the first plum blossom handle screw (20) is used to lock the measuring rod support (11).

2. The cylindrical side hole position inspection tool according to claim 1 is characterized in that: A spring clamping shaft (5) is threadedly connected to the V-shaped block (2), a first spring (6) is fixedly connected to the spring clamping shaft (5), and one end of the first spring (6) away from the spring clamping shaft (5) is fixedly connected to a positioning pin shaft (7).

3. The cylindrical side hole position inspection tool according to claim 1 or 2, characterized in that: The V-shaped block (2) is rotatably connected to the pressure cover (8) via a rotating pin (9), and both ends of the rotating pin (9) are detachably connected with shaft spring retaining rings (19). One end of the pressure cover (8) away from the rotating pin (9) is threadedly connected with a knurled screw (12), and the knurled screw (12) is threadedly connected to the V-shaped block (2).

4. The cylindrical side hole position inspection tool according to claim 1, characterized in that: The invention also comprises a dial indicator bracket (18), a dial indicator component (10) being detachably connected to the dial indicator bracket (18), a guide seat (15) being detachably connected to the base (1), a floating shaft (16) being slidably connected to the guide seat (15), one end of the floating shaft (16) being in contact with the dial indicator component (10), and the other end of the floating shaft (16) being in contact with the workpiece (3) to be measured.

5. The cylindrical side hole position detection fixture according to claim 4, characterized in that: A disc-shaped measuring head (14) is fixedly connected to the floating shaft (16).

6. The cylindrical side hole position detection fixture according to claim 4, characterized in that: The guide seat (15) is detachably connected to a guide block (17), the floating shaft (16) is slidably connected to the guide block (17), a second spring is sleeved on the floating shaft (16), and two ends of the second spring are respectively connected to the guide block (17) and the floating shaft (16).

7. The cylindrical side hole position inspection tool according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with a foot (13).

8. The cylindrical side hole position detection fixture according to claim 4, characterized in that: The dial indicator bracket (18) is threadedly connected with a second plum handle screw rod (21).

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