Hole series type position degree testing fixture

Abstract

The utility model relates to the technical field of location degree gauges, in particular to a hole type location degree gauge which comprises a handle and a detection plate, the detection plate is arranged on one side of the handle, a lining is arranged on the inner side of the detection plate, a guide sleeve is arranged on the inner side of the lining, a positioning block is fixedly connected to the inner side of the detection plate through a bolt, a positioning pin lining is arranged on the inner side of the detection plate, and a round positioning pin is arranged on the inner side of the front-end positioning pin lining. A rhombic positioning pin is arranged on the inner side of the rear end positioning pin bushing, a detection rod is arranged at one end of the detection plate, a rhombic pin is arranged in the positioning pin bushing, a limiting table block is fixedly connected to one side of the rhombic pin, a first cylinder is fixedly connected to one side of the limiting table block, and a positioning pin hole is formed in the inner side of the detection plate. According to the device, a height gauge, a dial indicator or a three-coordinate gauge for checking the position degree of the cylinder cover hole system is changed into a special checking fixture for checking the position degree of the hole system, so that the checking mode is changed, the checking efficiency is higher, the checking frequency is improved, and the produced cylinder cover is ensured to meet the drawing requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of position gauges, specifically to a position gauge for a hole system type. Background Art

[0002] At present, the inspection method for the position degree of the cylinder head hole system is to use a height gauge, a dial indicator or a coordinate measuring machine on a platform for inspection.

[0003] Using these two inspection methods, the inspection is inconvenient and the inspection time is relatively long, which is not conducive to quality control and is prone to producing unqualified products. Therefore, a position gauge for a hole system type is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a position gauge for a hole system type that changes the inspection of the position degree of the cylinder head hole system from using a height gauge, a dial indicator or a coordinate measuring machine to using a special position gauge for the hole system, changing the inspection method, making the inspection efficiency higher, increasing the inspection frequency, and ensuring that the produced cylinder head meets the requirements of the drawing for the hole system position degree.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A position gauge for a hole system type includes a handle and a inspection plate. A inspection plate is provided on one side of the handle. A bushing is provided inside the inspection plate. A guide sleeve is provided inside the bushing. A positioning block is fixedly connected inside the inspection plate through bolts. A positioning pin bushing is provided inside the inspection plate. A circular positioning pin is provided inside the front positioning pin bushing, and a diamond-shaped positioning pin is provided inside the rear positioning pin bushing. A inspection rod is provided at one end of the inspection plate. A diamond pin is provided inside the positioning pin bushing. A limiting block is fixedly connected to one side of the diamond pin. A first cylinder is fixedly connected to one side of the limiting block. A positioning pin hole is opened inside the inspection plate. A first through hole is opened inside the inspection plate. A first screw hole is opened inside the inspection plate. A second screw hole is opened inside the inspection plate. A first intermediate hole is opened inside the inspection plate. A second intermediate hole is opened inside the inspection plate. The guide sleeve includes a conductor ring. A second through hole is opened inside the conductor ring. A third through hole is opened inside the bushing. The circular positioning pin includes a round pin. A limiting piece is fixedly connected to one side of the round pin. A second cylinder is fixedly connected to one side of the limiting piece. A fourth through hole is opened inside the positioning pin bushing.

[0007] Preferably, an installation block bar is fixedly connected to one side of the handle. A fixing screw hole is opened inside the installation block bar. One side of the installation block bar is in contact with one side of the inspection plate. The installation block bar is fixedly connected inside the second screw hole through a fixing screw. The number of the installation block bars and the handle is two each.

[0008] Preferably, the number of the first through holes is eight, the positional tolerance of the first through holes is the same as that of the tappet through holes of the cylinder head, the first intermediate hole and the second intermediate hole are arranged in the middle end of the inspection plate, the number of the second screw holes is four, and the second screw holes are opened on the inner sides of the front end and the rear end of the inspection plate.

[0009] Preferably, the number of the first screw holes is several, a cylindrical groove is formed inside the positioning block, the shape of the cylindrical groove inside the positioning block is formed by combining two cylinders with different diameters, and one side of the positioning block is attached to the lower end of the inspection plate.

[0010] Preferably, the shape of the bushing is cylindrical, the shape of the third through hole is formed in a cylindrical shape, the outer side of the bushing and the inner side of the first through hole are in transitional fit, the shape of the second through hole is a stepped cylinder, the shape of the conductor ring is formed in a cylindrical shape, and the outer side of the conductor ring and the inner side of the third through hole are in transitional fit.

[0011] Preferably, the shape of the locating pin bushing is a hollow cylinder, the shape of the fourth through hole is formed in a cylindrical shape, the diamond pin is a rhomboid, the diamond pin and the cylinder head positioning hole are in clearance fit, the diameter of the limiting table block is larger than that of the diamond pin, the shape of the first cylinder is cylindrical, the outer side of the locating pin bushing and the inner side of the locating pin hole are in transitional fit, and the outer side of the first cylinder and the inner side of the fourth through hole are in transitional fit.

[0012] Preferably, the round pin is a circular pin, the round pin and the cylinder head positioning hole are in clearance fit, the diameter of the limiting piece is larger than that of the round pin, the shape of the second cylinder is cylindrical, and the outer side of the second cylinder and the inner side of the fourth through hole are in transitional fit.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In the present invention, through the provided diamond locating pin, inspection plate, guide sleeve, bushing, positioning block, circular locating pin, locating pin bushing and inspection rod, the inspection of the hole system positional tolerance of the cylinder head is changed from using a height gauge, dial indicator or coordinate measuring machine to using a special inspection tool for hole system positional tolerance, changing the inspection method, making the inspection efficiency higher, increasing the inspection frequency, and ensuring that the produced cylinder head meets the requirements of the drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the bottom view structure of the inspection plate of the present invention;

[0017] Figure 3 is a schematic diagram of the structure of the locating pin of the present invention;

[0018] Figure 4 Schematic diagram of the handle structure of the present invention;

[0019] Figure 5 Schematic diagram of the guide sleeve structure of the present invention;

[0020] Figure 6 Schematic diagram of the locating pin bushing structure of the present invention;

[0021] Figure 7 Schematic diagram of the diamond locating pin structure of the present invention;

[0022] Figure 8 Schematic diagram of the bushing structure of the present invention;

[0023] Figure 9 Schematic diagram of the circular locating pin structure of the present invention;

[0024] Figure 10 Schematic diagram of the locating block structure of the present invention.

[0025] In the figure: 1. Handle; 2. Diamond locating pin; 21. Diamond pin; 22. Limit table block; 23. First cylinder; 3. Inspection plate; 31. Locating pin hole; 32. First through hole; 33. First screw hole; 34. Second screw hole; 35. First intermediate hole; 36. Second intermediate hole; 4. Guide sleeve; 41. Second through hole; 42. Conductor coil; 5. Bushing; 51. Third through hole; 6. Locating block; 7. Circular locating pin; 71. Round pin; 72. Limit piece; 73. Second cylinder; 8. Locating pin bushing; 81. Fourth through hole; 9. Inspection rod; 10. Installation block bar; 11. Fixed screw thread; 12. Fixed screw. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-10 , the present invention provides a technical solution:

[0028] Hole series position gauges, including a handle 1 and a gauge plate 3. A gauge plate 3 is provided on one side of the handle 1. A bushing 5 is provided inside the gauge plate 3. A guide sleeve 4 is provided inside the bushing 5. A positioning block 6 is fixedly connected to the inside of the gauge plate 3 by bolts. A positioning pin bushing 8 is provided inside the gauge plate 3. A circular positioning pin 7 is provided inside the front-end positioning pin bushing 8. A diamond-shaped positioning pin 2 is provided inside the rear-end positioning pin bushing 8. A gauge rod 9 is provided at one end of the gauge plate 3. A diamond pin 21 is provided inside the positioning pin bushing 8. A limit table block 22 is fixedly connected to one side of the diamond pin 21. A first cylinder 23 is fixedly connected to one side of the limit table block 22. A positioning pin hole 31 is opened on the inside of the gauge plate 3. A first through hole 32 is opened on the inside of the gauge plate 3. A first screw hole 33 is opened on the inside of the gauge plate 3. A second screw hole 34 is opened on the inside of the gauge plate 3. A first intermediate hole 35 is opened on the inside of the gauge plate 3. A second intermediate hole 36 is opened on the inside of the gauge plate 3. The guide sleeve 4 includes a conductor ring 42. A second through hole 41 is opened inside the conductor ring 42. A third through hole 51 is opened inside the bushing 5. The circular positioning pin 7 includes a round pin 71. A limiting piece 72 is fixedly connected to one side of the round pin 71. A second cylinder 73 is fixedly connected to one side of the limiting piece 72. A fourth through hole 81 is opened inside the positioning pin bushing 8.

[0029] On one side of the handle 1, there is a fixed connection with an installation block strip 10. Inside the installation block strip 10, there is a fixed screw thread 11. One side of the installation block strip 10 is in contact with one side of the inspection plate 3. The installation block strip 10 is fixedly connected inside the second screw hole 34 through a fixed screw 12. The number of both the installation block strip 10 and the handle 1 is two, which facilitates the fixation between the handle 1, the installation block strip 10 and the inspection plate 3. The number of the first through holes 32 is eight, and the positional tolerance of the first through holes 32 is the same as that of the tappet through holes of the cylinder head. The first intermediate hole 35 and the second intermediate hole 36 are arranged in the middle of the inspection plate 3. The number of the second screw holes 34 is four, and the second screw holes 34 are opened inside the front end and the rear end of the inspection plate 3, which is convenient for the installation and disassembly of the device. The number of the first screw holes 33 is several. Inside the positioning block 6, there is a cylindrical groove. The shape of the cylindrical groove inside the positioning block 6 is formed by combining two cylinders with different diameters. One side of the positioning block 6 is in contact with the lower end of the inspection plate 3, achieving the effect of the positioning block 6 being closely attached to the bottom surface of the cylinder head. The shape of the bushing 5 is cylindrical, and the shape of the third through hole 51 is cylindrical. The outer side of the bushing 5 and the inner side of the first through hole 32 are in transitional fit. The shape of the second through hole 41 is a stepped cylinder, and the shape of the conductor ring 42 is cylindrical. The outer side of the conductor ring 42 and the inner side of the third through hole 51 are in transitional fit, shortening the inspection time of the positional tolerance of the inspection hole system and ensuring that the processed hole system meets the product requirements. The shape of the dowel bushing 8 is a hollow cylinder, and the shape of the fourth through hole 81 is cylindrical. The diamond pin 21 is a rhomboid, and the diamond pin 21 and the positioning hole of the cylinder head are in clearance fit. The diameter of the limiting block 22 is larger than that of the diamond pin 21. The shape of the first cylinder 23 is cylindrical. The outer side of the dowel bushing 8 and the inner side of the positioning pin hole 31 are in transitional fit. The outer side of the first cylinder 23 and the inner side of the fourth through hole 81 are in transitional fit, facilitating the vertical insertion of the diamond locating pin 2 into the positioning pin hole 31 on the bottom surface of the cylinder head. The round pin 71 is a round pin, and the round pin 71 and the positioning hole of the cylinder head are in clearance fit. The diameter of the limiting piece 72 is larger than that of the round pin 71. The shape of the second cylinder 73 is cylindrical. The outer side of the second cylinder 73 and the inner side of the fourth through hole 81 are in transitional fit, facilitating the vertical insertion of the round locating pin 7 into the positioning pin hole 31 on the bottom surface of the cylinder head.

[0030] Workflow: During the use of the device, when assembly is required, align the fixing screw holes 11 opened inside the mounting block strip 10 with the second screw holes 34. Rotate the fixing screws 12 inside the fixing screw holes 11 and the second screw holes 34 to install the mounting block strip 10 on one side of the handle 1. Install the locating pin bushing 8 inside the locating pin hole 31 at the front end, install the second cylinder 73 inside the fourth through hole 81 opened inside the locating pin bushing 8, install the locating pin bushing 8 inside the locating pin hole 31 at the rear end, install the first cylinder 23 inside the locating pin bushing 8, install the bushing 5 inside the first through hole 32, install the outside of the conductor coil 42 inside the third through hole 51 opened inside the bushing 5. At the same time, the stepped cylinder at the upper end of the conductor coil 42 faces upward. Fix the positioning block 6 to the lower end of the inspection plate 3 with bolts. At the same time, install the bolts inside the first screw hole 33 and the positioning block 6. During inspection, after assembling all the spare parts with the inspection plate 3 to form a tappet through-hole inspection tool, and then cooperating with the inspection rod 9, the position degree of the tappet through-hole of the cylinder head can be inspected. Vertically place the circular locating pin 7 and the diamond-shaped locating pin 2 of the tappet through-hole inspection tool into the locating pin holes 31 on the bottom surface of the cylinder head, make the positioning block 6 closely fit with the bottom surface of the cylinder head, and then place the inspection rod 9 from above the tappet through-hole inspection tool into the hole of the guide sleeve 4 corresponding to the tappet through-hole. Determine whether the position degree of the tappet through-hole of the cylinder head is qualified according to whether the inspection rod 9 can be inserted. The position degree of the hole system of the inspection plate 3 is processed according to the position degree of the corresponding hole system of the cylinder head, and the accuracy of the inspection tool is ensured by using the tolerance band of the inspection tool level, greatly shortening the inspection time for the position degree of the hole system, ensuring that the processed hole system meets the product requirements, and the use method of the inspection tool is also simple and convenient. The position degree of other hole systems of the cylinder head can be made into an inspection tool according to the above design principle.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hole-type position inspection tool, comprising a handle (1) and an inspection plate (3), characterized in that: A check plate (3) is provided on one side of the handle (1), a bushing (5) is provided on the inner side of the check plate (3), a guide sleeve (4) is provided on the inner side of the bushing (5), a positioning block (6) is fixedly connected to the inner side of the check plate (3) by bolts, a positioning pin bushing (8) is provided on the inner side of the check plate (3), a circular positioning pin (7) is provided on the inner side of the positioning pin bushing (8) at the front end, and a rhombus positioning pin (2) is provided on the inner side of the positioning pin bushing (8) at the rear end, a check rod (9) is provided on one end of the check plate (3), a rhombus pin (21) is provided inside the positioning pin bushing (8), one side of the rhombus pin (21) is fixedly connected to a limiting block (22), one side of the limiting block (22) is fixedly connected to a first cylinder (23), a positioning pin hole (31) is provided on the inner side of the check plate (3), The inspection plate (3) has a first through hole (32) on its inner side, a first screw hole (33) on its inner side, a second screw hole (34) on its inner side, a first middle hole (35) on its inner side, a second middle hole (36) on its inner side, the guide sleeve (4) comprises a conductor ring (42), a second through hole (41) on its inner side, a third through hole (51) on its inner side, the circular positioning pin (7) comprises a circular pin (71), one side of the circular pin (71) is fixedly connected to a limiting plate (72), one side of the limiting plate (72) is fixedly connected to a second cylinder (73), and a fourth through hole (81) is formed on its inner side of the positioning pin bushing (8).

2. The hole position gauge according to claim 1, characterized in that: A mounting block strip (10) is fixedly connected to one side of the handle (1), a fixing screw hole (11) is provided on the inner side of the mounting block strip (10), one side of the mounting block strip (10) is fitted with one side of the inspection plate (3), the mounting block strip (10) is fixedly connected to the inner side of the second screw hole (34) by a fixing screw (12), and the number of the mounting block strip (10) and the handle (1) are both two.

3. The hole position gauge according to claim 1, characterized in that: The number of the first through holes (32) is eight, and the position of the first through holes (32) is the same as the position of the cylinder head tappet through hole. The first middle hole (35) and the second middle hole (36) are arranged at the middle end of the inspection plate (3). The number of the second screw holes (34) is four, and the second screw holes (34) are opened on the inner side of the front end and the rear end of the inspection plate (3).

4. The hole position gauge according to claim 1, characterized in that: The number of the first screw holes (33) is several, and a cylindrical groove is provided on the inner side of the positioning block (6). The cylindrical groove on the inner side of the positioning block (6) is formed by combining two cylinders with different diameters, and one side of the positioning block (6) is in contact with the lower end of the inspection plate (3).

5. The hole position gauge according to claim 1, characterized in that: The bushing (5) is in the shape of a cylinder, the third through hole (51) is in the shape of a cylinder, the outer side of the bushing (5) and the inner side of the first through hole (32) are in transitional fit, the second through hole (41) is in the shape of a stepped cylinder, the conductor ring (42) is in the shape of a cylinder, and the outer side of the conductor ring (42) and the inner side of the third through hole (51) are in transitional fit.

6. The hole position gauge according to claim 1, characterized in that: The positioning pin bushing (8) is in the shape of a hollow cylinder, the fourth through hole (81) is in the shape of a cylinder, the rhombus pin (21) is a rhombus, the rhombus pin (21) and the cylinder head positioning hole are clearance-fitted, the diameter of the limiting block (22) is larger than the diameter of the rhombus pin (21), the first cylinder (23) is in the shape of a cylinder, the outer side of the positioning pin bushing (8) and the inner side of the positioning pin hole (31) are transition-fitted, and the outer side of the first cylinder (23) and the inner side of the fourth through hole (81) are transition-fitted.

7. The hole position gauge according to claim 1, characterized in that: The round pin (71) is a round pin, and the round pin (71) and the cylinder head positioning hole are clearance-fitted, the diameter of the limiting plate (72) is larger than the diameter of the round pin (71), the shape of the second cylinder (73) is a cylinder, and the outer side of the second cylinder (73) and the inner side of the fourth through hole (81) are transition-fitted.

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