A rapid testing fixture for positioning holes in a gearbox housing

Abstract

The utility model discloses a kind of gearbox shell processing positioning hole quick gauge, it is related to gearbox shell processing technical field, including outer slide bar, inner slide bar is slidably arranged in the outer slide bar, scale line is set up on the inner slide bar, the end portion of outer slide bar is fixedly provided with first plug rod, first baffle is fixedly provided on the first plug rod, the end portion of inner slide bar is fixedly provided with mounting block, positioning block is fixedly provided below the mounting block, adjusting block is rotatably arranged in the positioning block, mounting plate is fixedly provided below the adjusting block, dial is fixedly provided below the mounting plate, second baffle is fixedly provided below the dial, second plug rod is fixedly provided below the second baffle, positioning plate is fixedly and symmetrically provided on the both sides of mounting block, when hole depth is inconsistent in prior art, it can lead to inner slide bar and outer slide bar inclination, lead to the distance between two holes inaccurate measurement problem.

Description

Technical Field

[0001] This utility model relates to the field of gearbox housing processing technology, specifically a quick inspection tool for machining positioning holes in gearbox housings. Background Technology

[0002] The gearbox housing machining locating hole quick inspection tool is a special tool used to detect whether the locating holes of the gearbox housing have been deformed during the casting or machining process.

[0003] Chinese utility model patent CN220270319U discloses a quick inspection tool for machining positioning holes in a gearbox housing. The tool includes an outer slide rod, an inner slide rod, a detection component, and a positioning component. The outer slide rod has a handle on its upper side, and the inner slide rod has an elastic fixing component installed on its outer side. The inner slide rod has a scale on its upper side. The detection component includes a horizontal plate with rotating plates on both sides. A mounting bracket is installed at the upper end of each rotating plate, and a scale is located on the lower side of the horizontal plate. A pointer is located on the lower side of each rotating plate, and a guide rod is installed at the upper end of each rotating plate. The measuring distance of the tool is adjusted by sliding the inner slide rod inside the outer slide rod. The insertion angle of the first insertion rod in the hole changes, and the tilt of the positioning hole is determined by the change in the indicated angle of the pointer located in front of the scale.

[0004] However, existing technologies still have shortcomings:

[0005] When the hole depths are inconsistent, the inner and outer sliding rods will tilt, resulting in inaccurate measurement of the distance between the two holes and affecting the practicality of the device. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a quick-access tool for machining positioning holes in a gearbox housing, to address the problem in the prior art where inconsistent hole depths cause the inner and outer sliding rods to tilt, resulting in inaccurate distance measurement between the two holes and affecting the practicality of the device.

[0007] To achieve the above objectives, this utility model proposes a quick inspection tool for machining positioning holes in a gearbox housing, comprising an outer slide rod, an inner slide rod slidably disposed within the outer slide rod, a scale line formed on the inner slide rod, a first insert rod fixedly disposed at the end of the outer slide rod, a first baffle fixedly disposed on the first insert rod, a mounting block fixedly disposed at the end of the inner slide rod, a positioning block fixedly disposed below the mounting block, an adjusting block rotatably disposed within the positioning block, a mounting plate fixedly disposed below the adjusting block, a scale dial fixedly disposed below the mounting plate, a second baffle fixedly disposed below the scale dial, a second insert rod fixedly disposed below the second baffle, positioning plates symmetrically fixedly disposed on both sides of the mounting block, a limit rod fixedly disposed on the side of the mounting plate, an adjusting bolt threaded between the limit rod and the positioning plate, and a pointer fixedly disposed below the positioning plate.

[0008] As a further embodiment of this utility model: a limiting sleeve is fixedly provided on the side of the outer slide rod, and the inner slide rod is slidably disposed within the limiting sleeve.

[0009] As a further embodiment of this utility model: the limiting sleeve is threaded with a clamping screw, and the end of the clamping screw is rotatably provided with a pressure plate.

[0010] As a further embodiment of this utility model: the pressure plate is disposed above the inner sliding rod, and a pair of telescopic rods are fixedly disposed between the pressure plate and the limiting sleeve.

[0011] As a further embodiment of this utility model: threaded holes are provided on the limiting rod and the positioning plate.

[0012] As a further embodiment of this utility model: the adjusting bolt is disposed in the threaded hole.

[0013] As a further embodiment of this utility model: when the adjusting bolt is set in a pair of threaded holes, the pointer points to 0.

[0014] As a further embodiment of this utility model: when the adjusting bolt is set in a pair of threaded holes, the second baffle and the first baffle are on the same horizontal plane.

[0015] As a further embodiment of this utility model, a handle is fixedly provided on the outer sliding rod.

[0016] As a further embodiment of this utility model: the handle is disposed on the outer slide rod, near one end of the inner slide rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Positioning plates are symmetrically fixed on both sides of the mounting block, and limit rods are fixed on the sides of the mounting plates. Threaded holes are opened on the limit rods and positioning plates, and adjusting bolts are threaded into the threads of the threaded holes. A pointer is fixed below the positioning plates. Tightening the adjusting bolts limits the second baffle. At this time, the second baffle and the first baffle are on the same horizontal plane, and the pointer reading is zero. Then, the first and second insert rods are placed on the positioning holes of the gearbox respectively, and the horizontal distance between the two positioning holes can be measured. After reading the data, the adjusting bolts are removed to release the limitation on the second baffle, and the limitation of the clamping screw is removed. Then, the second insert rod is placed in the positioning hole until the first baffle is in contact with the upper surface of the positioning hole. The data is read from the scale and the pointer, which is the inclination of the second insert rod in the hole. By taking two readings, the measurement result is more accurate than directly setting the two baffles on the two positioning holes and reading the scale lines and numbers on the scale. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a partial exploded view of the present invention.

[0022] In the diagram: 1. Outer slide rod; 2. Inner slide rod; 3. Handle; 4. First insert rod; 5. First baffle; 6. Limit sleeve; 7. Clamping screw; 8. Pressure plate; 9. Mounting block; 10. Positioning plate; 11. Adjusting bolt; 12. Dial; 13. Pointer; 14. Second insert rod; 15. Second baffle; 16. Mounting plate; 17. Telescopic rod; 18. Adjusting block; 19. Limit rod; 20. Threaded hole; 21. Scale line; 22. Positioning block. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1-3As shown, a quick-access gauge for machining positioning holes in a gearbox housing includes an outer slide rod 1, an inner slide rod 2 slidably disposed within the outer slide rod 1, a first measuring structure fixedly disposed at the end of the outer slide rod 1, and a second measuring structure fixedly disposed at the end of the inner slide rod 2. The first measuring structure includes a first insert rod 4 and a first baffle 5. The first insert rod 4 is fixedly disposed at one end of the outer slide rod 1, and the first baffle 5 is fixedly disposed on the first insert rod 4. Specifically, the first baffle 5 is disposed at the lower end of the first insert rod 4. In use, the first measuring structure is disposed on one positioning hole of the gearbox housing, and the second measuring structure is disposed on the other. On the positioning hole, the distance the inner slide rod 2 is pulled out is the distance between the two holes. In order to facilitate the observation of the distance the inner slide rod 2 extends, a scale line 21 is opened on the inner slide rod 2. In order to limit the inner slide rod 2 after it is pulled out, a limit sleeve 6 is fixedly installed on the side of the outer slide rod 1. The inner slide rod 2 is slidably installed in the limit sleeve 6. A clamping screw 7 is threaded on the limit sleeve 6. A pressure plate 8 is rotatably installed at the end of the clamping screw 7. The pressure plate 8 is installed above the inner slide rod 2. A pair of telescopic rods 17 are fixedly installed between the pressure plate 8 and the limit sleeve 6. Rotating the clamping screw 7 drives the pressure plate 8 to press down, thereby limiting the inner slide rod 2.

[0025] In one embodiment of this invention, the second measuring structure includes a mounting block 9, which is fixedly mounted on the end of the inner slide rod 2. A positioning block 22 is fixedly mounted below the mounting block 9. An adjusting block 18 is rotatably mounted inside the positioning block 22. A mounting plate 16 is fixedly mounted below the adjusting block 18. A scale 12 is fixedly mounted below the mounting plate 16. A second baffle 15 is fixedly mounted below the scale 12. A second insert rod 14 is fixedly mounted below the second baffle 15. Positioning plates 10 are symmetrically fixed on both sides of the mounting block 9. A limit rod 19 is fixedly mounted on the side of the mounting plate 16. Threaded holes 20 are formed on the limit rod 19 and the positioning plate 10. Threaded holes 20 are internally threaded. Adjusting bolt 11 and pointer 13 are fixedly installed below positioning plate 10. Tightening adjusting bolt 11 limits the second baffle 15. At this time, the second baffle 15 and the first baffle 5 are on the same horizontal plane, and the pointer 13 reads zero. Then, the first insertion rod 4 and the second insertion rod 14 are placed on a positioning hole of a gearbox respectively, and the horizontal distance between the two positioning holes can be measured. After reading the data, remove adjusting bolt 11 to release the limit on the second baffle 15 and remove the limit of clamping screw 7. Then, place the second insertion rod 14 into the positioning hole until the first baffle 5 is in contact with the upper surface of the positioning hole. Read the data according to the scale 12 and pointer 13, which is the inclination of the second insertion rod 14 in the hole.

[0026] As one embodiment of this invention, in order to facilitate the movement of the device, a handle 3 is fixedly provided on the outer slide rod 1, and the handle 3 is provided on the outer slide rod 1, near one end of the inner slide rod 2.

[0027] This application is not applicable to measuring hole depth. That is, for different positioning holes, the insertion lengths of the first insertion rod 4 and the second insertion rod 14 are fixed, and the measurement of the distance between the two holes and the inclination of one side hole are realized through the measuring structure at the ends of the inner slide rod 2 and the outer slide rod 1.

[0028] Working principle: Tighten the adjusting bolt 11 to limit the second baffle 15. At this time, the second baffle 15 and the first baffle 5 are on the same horizontal plane, and the pointer 13 reads zero. Then, using a horizontal hole as the base point, insert the first insert rod 4 into the horizontal positioning hole (the horizontal positioning hole can be measured by the second measuring structure first). Place the second insert rod 14 on the positioning hole of another gearbox until the first baffle 5 is in contact with the upper surface of the positioning hole. Rotate the clamping screw 7 to drive the pressure plate 8 to press down, thereby limiting the inner slide rod 2. Then read the data on the scale line 21 on the inner slide rod 2, which is the horizontal distance between the two holes. Then remove the adjusting bolt 11 to release the limitation of the second baffle 15 and remove the limitation of the clamping screw 7. Then place the second insert rod 14 in the positioning hole until the first baffle 5 is in contact with the upper surface of the positioning hole. Read the data according to the scale 12 and pointer 13, which is the inclination of the second insert rod 14 in the hole.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A quick inspection tool for machining positioning holes in a gearbox housing, comprising an outer slide rod (1), an inner slide rod (2) slidably disposed within the outer slide rod (1), a scale line (21) being provided on the inner slide rod (2), a first insert rod (4) being fixedly disposed at the end of the outer slide rod (1), and a first baffle (5) being fixedly disposed on the first insert rod (4), characterized in that, An installation block (9) is fixedly provided at the end of the inner slide rod (2). A positioning block (22) is fixedly provided below the installation block (9). An adjustment block (18) is rotatably provided inside the positioning block (22). An installation plate (16) is fixedly provided below the adjustment block (18). A scale (12) is fixedly provided below the installation plate (16). A second baffle (15) is fixedly provided below the scale (12). A second insert rod (14) is fixedly provided below the second baffle (15). Positioning plates (10) are symmetrically fixedly provided on both sides of the installation block (9). A limit rod (19) is fixedly provided on the side of the installation plate (16). An adjustment bolt (11) is threaded on the limit rod (19) and the positioning plate (10). A pointer (13) is fixedly provided below the positioning plate (10). The limiting rod (19) and the positioning plate (10) are provided with threaded holes (20). The adjusting bolt (11) is disposed in the threaded hole (20); When the adjusting bolt (11) is set in a pair of threaded holes (20), the pointer (13) points to 0; When the adjusting bolt (11) is set in a pair of threaded holes (20), the second baffle (15) is on the same horizontal plane as the first baffle (5).

2. The quick inspection tool for machining positioning holes in a gearbox housing according to claim 1, characterized in that, The outer slide rod (1) is fixedly provided with a limiting sleeve (6) on its side, and the inner slide rod (2) is slidably provided inside the limiting sleeve (6).

3. A quick inspection tool for machining positioning holes in a gearbox housing according to claim 2, characterized in that, The limiting sleeve (6) is threaded with a clamping screw (7), and a pressure plate (8) is rotatably provided at the end of the clamping screw (7).

4. A quick inspection tool for machining positioning holes in a gearbox housing according to claim 3, characterized in that, The pressure plate (8) is positioned above the inner slide rod (2), and a pair of telescopic rods (17) are fixedly arranged between the pressure plate (8) and the limiting sleeve (6).

5. A quick inspection tool for machining positioning holes in a gearbox housing according to claim 1, characterized in that, A handle (3) is fixedly installed on the outer slide rod (1).

6. A quick inspection tool for machining positioning holes in a gearbox housing according to claim 5, characterized in that, The handle (3) is located on the outer slide bar (1), near one end of the inner slide bar (2).

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