Go-no go gauge testing tool for testing inner diameter of sleeve

Abstract

A go / no-go gauge testing tool for testing the inner diameter of a sleeve comprises a stainless steel sheath, a go gauge, a no-go gauge, a fixed bottom plate, a bearing vertical block, a clamping plate, a positioning sleeve and a supporting vertical plate, the lower part of the fixed bottom plate is connected with a fixed supporting block, the upper part of the fixed bottom plate is provided with the bearing vertical block, the bearing vertical block is provided with a placing groove, the placing groove is matched with the stainless steel sheath, and the placing groove is connected with the stainless steel sheath. The stainless steel sheath is connected with the inner side of the side anti-skid rubber mat, the outer side of the side anti-skid rubber mat is connected with the clamping plate, the lower portion of the clamping plate is provided with the movable bottom plate, the upper portion of the movable bottom plate is connected with the reinforcing supporting plate, the reinforcing supporting plate is connected with the clamping plate, and the lower portion of the movable bottom plate is connected with the fixed bottom plate. Sliding holes are formed in the two sides of the fixed bottom plate, movable blocks are arranged on the lower portion of the movable bottom plate, the movable blocks are matched with the sliding holes, and the movable blocks penetrate through the sliding holes.

Description

Technical Field

[0001] The utility model relates to the field of go / no-go gauges, in particular to a go / no-go gauge testing tool for testing the inner diameter of a casing. Background Art

[0002] When stainless steel sheaths are produced, their inner diameters need to be measured to determine whether they meet the requirements. However, existing detection methods mostly use caliper measurements, which are less convenient to operate and reduce the efficiency of stainless steel sheath inspection, which has disadvantages. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a go gauge and a no-go gauge inspection tool for quickly detecting the upper and lower differences in the inner diameter of a stainless steel sheath using a go gauge and a no-go gauge. The tool is easy to operate and improves the inspection efficiency of the stainless steel sheath by reducing the inspection time using a caliper.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A tool for inspecting the inner diameter of a casing, comprising a stainless steel sheath, a go gauge, a no-go gauge, a fixed base plate, a supporting block, a splint, a positioning sleeve, and a supporting plate. The lower portion of the fixed base plate is connected to the fixed support block, the upper portion of the fixed base plate is provided with a supporting block, the supporting block has a placement groove, the placement groove is adapted to the stainless steel sheath, the placement groove is connected to the stainless steel sheath, the stainless steel sheath is connected to the lower anti-slip rubber pad, the lower anti-slip rubber pad is connected to the supporting block, the stainless steel sheath is connected to the inner side of the side anti-slip rubber pad, the outer side of the side anti-slip rubber pad is connected to the splint, the lower portion of the splint is provided with a movable base plate, the upper portion of the movable base plate is connected to a reinforcement support plate, the reinforcement support plate is connected to the splint, the lower portion of the movable base plate is connected to the fixed base plate, sliding holes are provided on both sides of the fixed base plate, the lower portion of the movable base plate is provided with a movable block, the movable block is adapted to the sliding hole, and the movable block passes through the sliding hole.

[0006] The movable block of the utility model is connected to the inner end of the spring bar, the outer end of the spring bar is connected to the fixed base plate, the sliding rod passes through the fixed base plate, the spring bar, and the movable block in sequence, and the two ends of the sliding rod are connected to the fixed base plate. The upper part of the fixed base plate is provided with a supporting vertical plate, and the outside of the supporting vertical plate is provided with a fixed support sleeve, the fixed support sleeve is connected to the positioning sleeve, the positioning sleeve has a mounting convex ring, the fixed support sleeve has a mounting groove, the mounting convex ring is adapted to the mounting groove, and the mounting convex ring is connected to the mounting groove.

[0007] The utility model discloses a fixing support sleeve externally connected to a fastening buckle, a fastening card plate is provided on the inner side of the fastening buckle, card plate through-holes are provided on both sides of the fixing support sleeve, and the mounting convex ring has a fastening card slot, the fastening card slot and the card plate through-holes are adapted to the fastening card plate, the fastening card plate passes through the card plate through-holes, and the fastening card plate is connected to the fastening card slot.

[0008] The utility model describes a positioning sleeve with a rotating wheel on the outside, and a positioning rod is connected to the inside of the positioning sleeve through a threaded connection. The positioning rod passes through the positioning sleeve, the fixed support sleeve, and the supporting vertical plate in sequence. The positioning sleeve has a stop gauge, the stop gauge has a through gauge, the stop gauge has a limit support plate through hole, the fixed bottom plate has a limit slide groove, the limit support plate through hole, the limit slide groove is adapted to the limit support plate, the limit support plate passes through the limit support plate through hole, the lower end of the limit support plate is connected to the limit slide groove, and the limit support plate slides in the limit slide groove. Beneficial effects

[0009] When measuring the inner diameter of a stainless steel sheath, the utility model first places the stainless steel sheath in the placement groove, and the clamping plates on both sides are clamped on the outside of the stainless steel sheath, and the stainless steel sheath is limited and supported by the supporting block and the clamping plates on both sides, so as to improve the placement stability of the stainless steel sheath and prevent the stainless steel sheath from rotating, so as to ensure that the stainless steel sheath and the position of the through gauge are concentric, and the measurement accuracy is improved. Then, the positioning rod is driven to move to by rotating the rotating wheel, and the through gauge passes through the stainless steel sheath, wherein the through gauge diameter is φ18 and the stop gauge diameter is φ18.3, which are respectively the upper difference and the lower difference of the inner diameter of the stainless steel sheath to be measured. The through gauge is passed along the aperture direction of the stainless steel sheath to check whether the inner diameter of the stainless steel sheath meets the requirements, and ensure that the through gauge passes through the stainless steel sheath without resistance and the stop gauge cannot pass. At the same time, the measuring length of the through gauge is greater than the length of the stainless steel sheath to ensure that the straightness of the stainless steel sheath meets the requirements. The operation is convenient and the inspection efficiency of the stainless steel sheath is increased by reducing the inspection time of measuring with a caliper.

[0010] The utility model forms a triangular support frame between the splint, the reinforcement support plate and the movable bottom plate, which has stable supporting characteristics and utilizes the elastic tension of the spring bar itself to automatically reset after being pushed, so that the stainless steel sheath can be quickly placed, positioned and separated and removed. By cooperating with the supporting block, the outside of the stainless steel sheath is supported and clamped at multiple points, which improves the placement stability of the stainless steel sheath, prevents the stainless steel sheath from rotating, and improves the accuracy of measuring the inner diameter of the stainless steel sheath. Anti-slip rubber pads are added to the inner sides of the splint and the supporting block. They are made of rubber and can increase the friction resistance between the contact surface with the outer wall of the stainless steel sheath, thereby improving the placement and positioning of the stainless steel sheath.

[0011] The utility model discloses a positioning sleeve is positioned and connected with the positioning rod by a thread, so that when the positioning sleeve is driven to rotate by rotating the rotating wheel, the positioning rod drives the through gauge and the stop gauge to perform lateral linear displacement movement, which is convenient for the through gauge to be displaced to the position where it passes through the aperture of the stainless steel sheath and measure the inner diameter thereof, and the operation is convenient, which improves the efficiency of the inner diameter measurement of the stainless steel sheath, and adds a fixed bottom plate to the limit support point of the stop gauge by the limit support plate, so that it maintains lateral linear displacement, prevents the positioning rod from being affected by the rotational force of the positioning sleeve and rotating accordingly, and prevents the stop gauge from falling off and separating from the supporting vertical plate when displacing, thereby improving the stability of the structure.

[0012] The fastening buckles on both sides of the utility model are fastened and fixed to the outside of the fixed support sleeve in a opposed manner. The fastening card plate on the inner side increases the connection fulcrum between the fixed support sleeve and the mounting convex ring, and is embedded in the fastening card groove through the fastening card plate through the through-hole of the card plate to limit the position of the positioning sleeve, so that it can perform axial rotation while keeping its longitudinal height and lateral position unchanged, thereby preventing it from moving and falling, affecting the linkage effect between the components, and improving the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic structural diagram of a go / no-go gauge inspection tool for inspecting the inner diameter of a casing.

[0014] Figure 2 The utility model is a top view of the structure of a go / no-go gauge inspection tool for inspecting the inner diameter of a casing.

[0015] Figure 3 The utility model is a cross-sectional view of the structure of a go / no-go gauge inspection tool for inspecting the inner diameter of a casing.

[0016] Figure 4 This is a cross-sectional view of the stainless steel sheath and splint connection structure described in the present invention.

[0017] Figure 5 This is a schematic diagram of the fixed base plate structure described in the present utility model.

[0018] Figure 6 This is a schematic diagram of the stop gauge structure described in the utility model.

[0019] Figure 7 This is a schematic diagram of the reinforcement support plate and sliding rod structure described in the present utility model.

[0020] Figure 8 This is a schematic diagram of the fixed support sleeve structure described in the utility model.

[0021] Figure 9 This is a cross-sectional view of the connection structure of the fastening buckle, mounting convex ring, and fixed support sleeve described in the present utility model. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments:

[0023] Example 1:

[0024] A tool for inspecting the inner diameter of a casing, comprising a stainless steel sheath 01, a go gauge 02, a no-go gauge 03, a fixed base plate 04, a supporting block 06, a splint 10, a positioning sleeve 18, and a supporting plate 27. The lower portion of the fixed base plate 04 is connected to the fixed support block 05, and the upper portion of the fixed base plate 04 has a supporting block 06. The supporting block 06 has a placement groove 07, which is adapted to the stainless steel sheath 01. The placement groove 07 is connected to the stainless steel sheath 01, and the stainless steel sheath 01 is connected to the lower anti-skid rubber pad 08, which is connected to the supporting block 05. The support block 06, the stainless steel sheath 01 is connected to the inner side of the side anti-slip rubber pad 09, the outer side of the side anti-slip rubber pad 09 is connected to the splint 10, the lower part of the splint 10 has a movable bottom plate 12, the upper part of the movable bottom plate 12 is connected to the reinforcement support plate 11, the reinforcement support plate 11 is connected to the splint 10, the lower part of the movable bottom plate 12 is connected to the fixed bottom plate 04, the fixed bottom plate 04 has sliding holes 16 on both sides, the lower part of the movable bottom plate 12 has a movable block 13, the movable block 13 is adapted to the sliding hole 16, the movable block 13 passes through the sliding hole 16, when the inner diameter of the stainless steel sheath 01 is measured, First, place the stainless steel sheath 01 into the placement groove 07, and clamp the two side clamps 10 on the outside of the stainless steel sheath 01. Use the supporting block 06 and the two side clamps 10 to limit and support the stainless steel sheath 01, improve the placement stability of the stainless steel sheath 01, prevent the stainless steel sheath 01 from rotating, so as to ensure that the stainless steel sheath 01 and the through gauge 02 are concentric, and improve the measurement accuracy. Then, by rotating the wheel 19, the positioning rod 17 is driven to move to the position where the through gauge 02 passes through the stainless steel sheath 01. The diameter of the through gauge 02 is φ18, and the diameter of the stop gauge 03 is φ18. φ18.3, respectively, are the upper difference and lower difference of the inner diameter of the stainless steel sheath 01 to be measured. Pass the through gauge 02 along the aperture direction of the stainless steel sheath 01 to check whether the inner diameter of the stainless steel sheath 01 meets the requirements, ensure that the through gauge 02 passes through the stainless steel sheath 01 without resistance, and the stop gauge 03 cannot pass. At the same time, the measuring length of the through gauge 02 must be greater than the length of the stainless steel sheath 01 to ensure that the straightness of the stainless steel sheath 01 meets the requirements. The operation is convenient and the inspection efficiency of the stainless steel sheath is increased by reducing the inspection time of measuring with calipers.

[0025] Example 2:

[0026] The utility model said movable block 13 is connected to the inner end of the spring bar 14, the outer end of the spring bar 14 is connected to the fixed base plate 04, the slide rod 15 passes through the fixed base plate 04, the spring bar 14, the movable block 13 in sequence, and the two ends of the slide rod 15 are connected to the fixed base plate 04, the upper part of the fixed base plate 04 has a support vertical plate 27, the outer part of the support vertical plate 27 has a fixed support sleeve 20, the fixed support sleeve 20 is connected to the positioning sleeve 18, the positioning sleeve 18 has a mounting convex ring 21, the fixed support sleeve 20 has a mounting groove 22, the mounting convex ring 21 is adapted to the mounting groove 22, the mounting convex ring 21 is connected to the mounting groove 22, the splint 10 and the reinforcement support plate 11, the movable base plate 12 are three-dimensional. The angular support frame has stable supporting characteristics and uses the elastic tension of the spring bar 14 itself to automatically reset after being pushed, which is convenient for the stainless steel sheath 01 to be quickly placed, positioned, and separated and removed. It cooperates with the supporting block 06 to perform multi-point support and clamping on the outside of the stainless steel sheath 01, thereby improving the placement stability of the stainless steel sheath 01, preventing the stainless steel sheath 01 from rotating, and improving the accuracy of measuring the inner diameter of the stainless steel sheath 01. Anti-slip rubber pads are added to the inner sides of the splint 10 and the supporting block 06. They are made of rubber and can increase the friction resistance between the contact surface and the outer wall of the stainless steel sheath 01, thereby improving the placement and positioning of the stainless steel sheath 01.

[0027] Example 3:

[0028] The fixing sleeve 20 of the utility model is externally connected to the fastening buckle 23, and the fastening buckle 23 has a fastening card plate 24 on the inside, and the fixing sleeve 20 has card plate through holes 26 on both sides. The mounting convex ring 21 has a fastening slot 25, and the fastening slot 25 and the card plate through holes 26 are adapted to the fastening card plate 24. The fastening card plate 24 passes through the card plate through holes 26, and the fastening card plate 24 is connected to the fastening slot 25. The fastening buckles 23 on both sides are oppositely buckled and fixed to the outside of the fixing sleeve 20. The fastening card plate 24 on the inside increases the connection fulcrum between the fixing sleeve 20 and the mounting convex ring 21, and is embedded in the fastening slot 25 by passing the fastening card plate 24 through the card plate through holes 26, thereby limiting the position of the positioning sleeve 18, so that it can rotate axially while keeping its longitudinal height and lateral position unchanged, thereby preventing it from moving and falling, affecting the linkage effect between the components, and improving the structural stability.

[0029] Example 4:

[0030] The utility model of the positioning sleeve 18 has a rotating wheel 19 on the outside, and the positioning sleeve 18 is internally connected to the positioning rod 17 by a thread. The positioning rod 17 passes through the positioning sleeve 18, the fixed support sleeve 20, and the supporting vertical plate 27 in sequence. The positioning sleeve 18 has a stop gauge 03, the stop gauge 03 has a through gauge 02, the stop gauge 03 has a limit support plate perforation 30, the fixed bottom plate 04 has a limit slide 29, the limit support plate perforation 30, the limit slide 29 and the limit support plate 28 are adapted to the limit support plate 28, the limit support plate 28 passes through the limit support plate perforation 30, the lower end of the limit support plate 28 is connected to the limit slide 29, the limit support plate 28 slides in the limit slide 29, and the positioning sleeve 18 is threaded with the positioning The rods 17 are positioned and connected, so that when the positioning sleeve 18 is driven to rotate by rotating the rotating wheel 19, the positioning rod 17 drives the through gauge 02 and the stop gauge 03 to perform lateral linear displacement movement, so that the through gauge 02 is moved to the point where it passes through the aperture of the stainless steel sheath 01 to measure its inner diameter. The operation is convenient, which improves the efficiency of measuring the inner diameter of the stainless steel sheath 01. The limiting support plate 28 is used to increase the limiting support point of the fixed bottom plate 04 for the stop gauge 03, so that it maintains lateral linear displacement, preventing the positioning rod 17 from being affected by the rotational force of the positioning sleeve 18 and rotating with it, and preventing the stop gauge 03 from falling off from the supporting vertical plate 27 when it is displaced, thereby improving the structural stability.

[0031] Example 5:

[0032] Installation steps: First, assemble the fixed base plate 04 structure, first install and fix the fixed support block 05 to the bottom of the fixed base plate 04, then place the splint 10 on both sides of the supporting block 06, and the lower surface of the movable base plate 12 is in contact with the upper surface of the fixed base plate 04, and the movable block 13 passes through the sliding hole 16, then place the spring bar 14 into the stainless steel sheath 01, and the outer end of the spring bar 14 is pressed against the fixed base plate 04, and the inner end of the spring bar 14 is pressed against the movable base plate 12, then pass the sliding rod 15 through the fixed base plate 04, the spring bar 14, and the movable block 13 in sequence, and the two ends of the sliding rod 15 are fixedly connected to the fixed base plate 04, then place the positioning sleeve 18 on the outside of the fixed support sleeve 20, the inner surface of the positioning sleeve 18 is in contact with the outer surface of the fixed support sleeve 20, and the mounting convex ring 21 is embedded in the mounting groove 22, and the fastening slot 25 is passed through the card The positions of the holes 26 correspond to each other, and finally, the fastening buckle 23 is placed on the outside of the fixed support sleeve 20, and the fastening buckles 23 on both sides are oppositely buckled and fixedly connected, and the fastening card plate 24 passes through the card plate through-hole 26 and is embedded in the fastening card slot 25. After completing the assembly of the fixed base plate 04 structure, the stainless steel sheath 01 is placed in the placement slot 07, and the two side splints 10 are clamped on both sides of the stainless steel sheath 01. The inner surfaces of the side anti-slip rubber pads 09 and the lower anti-slip rubber pads 08 are both in contact with the outer surface of the stainless steel sheath 01. Then, the positioning rod 17 is passed through the positioning sleeve 18, the fixed support sleeve 20, and the supporting vertical plate 27 in turn, and the positioning rod 17 is positioned and connected with the positioning sleeve 18 through threads, and the through gauge 02 is concentric with the stainless steel sheath 01. Finally, the limiting support plate 28 is passed through the limiting support plate through-hole 30 until its lower end is embedded in the limiting slide groove 29 to complete the installation.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A tool for checking the inner diameter of a casing, characterized by : It includes a stainless steel sheath (01), a through gauge (02), a stop gauge (03), a fixed base plate (04), a supporting block (06), a splint (10), a positioning sleeve (18), and a supporting plate (27). The lower part of the fixed base plate (04) is connected to the fixed support block (05). The upper part of the fixed base plate (04) has a supporting block (06). The supporting block (06) has a placement groove (07). The placement groove (07) is adapted to the stainless steel sheath (01). The placement groove (07) is connected to the stainless steel sheath (01). The stainless steel sheath (01) is connected to the lower anti-skid rubber pad (08). The lower anti-skid rubber pad (08) is connected to the supporting block (06). The stainless steel sheath (01) is connected to the inner side of the side anti-skid rubber pad (09). The outer side of the side anti-skid rubber pad (09) is connected to the splint (10). The lower part of the splint (10) has a movable base plate (12). The movable base plate ( The upper part of the movable bottom plate (12) is connected to the reinforcing support plate (11), the reinforcing support plate (11) is connected to the splint (10), the lower part of the movable bottom plate (12) is connected to the fixed bottom plate (04), the fixed bottom plate (04) has sliding holes (16) on both sides, the lower part of the movable bottom plate (12) has a movable block (13), the movable block (13) is adapted to the sliding hole (16), and the movable block (13) passes through the sliding hole (16); the movable block (13) is connected to the inner end of the spring bar (14), the outer end of the spring bar (14) is connected to the fixed bottom plate (04), the sliding rod (15) passes through the fixed bottom plate (04), the spring bar (14), and the movable block (13) in sequence, the two ends of the sliding rod (15) are connected to the fixed bottom plate (04), the upper part of the fixed bottom plate (04) has a supporting vertical plate (27), the outer part of the supporting vertical plate (27) has a fixed support sleeve (20), and the fixed support sleeve (20) is connected to the positioning sleeve (18).

2. A tool for checking the inner diameter of a casing according to claim 1, characterized in that The positioning sleeve (18) has a mounting convex ring (21), the fixed support sleeve (20) has a mounting groove (22), the mounting convex ring (21) is adapted to the mounting groove (22), and the mounting convex ring (21) is connected to the mounting groove (22).

3. A tool for checking the inner diameter of a casing according to claim 2, characterized in that The fixed support sleeve (20) is externally connected to the fastening buckle (23), the fastening buckle (23) is provided with a fastening card plate (24) on the inner side, the fixed support sleeve (20) has card plate through holes (26) on both sides, the mounting convex ring (21) has a fastening card slot (25), the fastening card slot (25) and the card plate through hole (26) are adapted to the fastening card plate (24), the fastening card plate (24) passes through the card plate through hole (26), and the fastening card plate (24) is connected to the fastening card slot (25).

4. A tool for checking the inner diameter of a casing according to claim 1, characterized in that : The positioning sleeve (18) has a rotating wheel (19) on the outside, and the positioning sleeve (18) is connected to the positioning rod (17) through a threaded connection. The positioning rod (17) passes through the positioning sleeve (18), the fixed support sleeve (20), and the supporting vertical plate (27) in sequence. The positioning sleeve (18) has a stop gauge (03), the stop gauge (03) has a through gauge (02), the stop gauge (03) has a limit support plate through hole (30), the fixed bottom plate (04) has a limit slide (29), the limit support plate through hole (30), the limit slide (29) and the limit support plate (28) are adapted to each other, the limit support plate (28) passes through the limit support plate through hole (30), the lower end of the limit support plate (28) is connected to the limit slide (29), and the limit support plate (28) slides in the limit slide (29).

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