A tool for quickly detecting the size of a salt core regular profile
By designing a rapid batch inspection tool for the regular surface dimensions of salt cores, the problems of low inspection efficiency and unstable measurement results of salt cores have been solved, enabling rapid and accurate determination of the surface dimensions of salt cores, which is suitable for the production of high-precision castings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BINZHOU ZHENGDAO MASCH MFG CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technologies, the efficiency of salt core regular surface dimension detection is low and the measurement results are unstable. Manual inspection is time-consuming and labor-intensive, making it difficult to meet the production needs of high-precision castings.
A rapid batch inspection tool for the dimensions of regular salt core surfaces was designed, including a base plate, a positioning plate, a stop gauge mechanism, and a scale. By adjusting the spacing of the positioning plates and using a feeler gauge, the dimensions of the salt core surfaces can be quickly determined, reducing human reading errors.
It improves the efficiency and consistency of batch testing of salt cores, is applicable to the testing of salt cores of different sizes, expands the versatility of testing tools, and ensures the accuracy and flexibility of testing.
Smart Images

Figure CN224470954U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of testing tools, and specifically relates to a rapid batch testing tool for the dimensions of regular salt core surfaces. Background Technology
[0002] In the casting process, the salt core, as a core component forming complex cavities, directly determines the form and position tolerances and functional performance of the final casting cavity. With the increasing demand for high-precision castings in aerospace, automotive manufacturing, and other fields, the manufacturing process of salt cores has achieved a leap from manual forming to automated production, with single-batch production reaching thousands of pieces. However, significant technical bottlenecks remain in the dimensional inspection of salt cores. Currently, the length and width parameters of regular surfaces such as rectangular and stepped surfaces are generally measured manually one by one using measuring tools such as vernier calipers. This inspection method not only requires operators to have high skill levels to ensure the consistency of measurement benchmarks but also has the following prominent problems: First, the inspection efficiency is low. For batch-produced salt cores, manual measurement of each piece and item requires a large amount of time, severely restricting the improvement of production cycle time. Second, the measurement accuracy is not stable enough. Affected by human factors such as fluctuations in operator physical strength and differences in reading habits, the repeatability and consistency of measurement results are difficult to guarantee, which may lead to defective products flowing into the next process. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a rapid batch inspection tool for the regular surface dimensions of salt cores. This tool facilitates the rapid inspection of whether the surface dimensions of salt cores are qualified, and solves the problems of time-consuming, labor-intensive, and unstable measurement results in existing inspection methods.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A rapid batch inspection tool for the dimensions of regular salt core surfaces includes:
[0006] The base plate has foot pads at the bottom and a support plate connected to the upper part by columns;
[0007] A first positioning plate and a second positioning plate are symmetrically arranged on the support plate, and the distance between the first positioning plate and the second positioning plate is equal to the upper limit of the tolerance of the salt core surface dimension to be measured.
[0008] The stop gauge mechanism located on the top of the first positioning plate includes a connecting seat and a feeler gauge that is attached to and rotatably connected to the end face of the connecting seat. The outer end face of the connecting seat is flush with the outer wall of the first positioning plate, and the thickness of the feeler gauge is equal to the allowable tolerance value of the salt core profile size.
[0009] Furthermore, both the first and second positioning plates have through grooves at their lower parts, which are slidably connected to the support plate. The bottom of both the first and second positioning plates is fixedly connected to a screw sleeve. The upper part of the base plate is rotatably connected to a double-ended stud via a fixed seat. The double-ended stud is threadedly connected to the screw sleeve, and one end of the double-ended stud is provided with a knob. The support plate and the column are detachably connected by bolts.
[0010] Furthermore, a locking mechanism is provided on one side of the fixed base. The locking mechanism includes a base fixedly installed on one side of the fixed base, a clamping clamp on one side of the base, and a locking handle threadedly connected to one side of the clamping clamp.
[0011] Furthermore, a scale is fixedly connected to one side of the first positioning plate, with the zero mark of the scale aligned with the detection surface of the first positioning plate, and the scale slidingly engaging with the side of the second positioning plate.
[0012] Furthermore, the first positioning plate has a top plate on its upper part, a guide rail on the top plate, and a mounting seat on the upper part of the top plate. The connecting seat of the stop gauge mechanism is fixedly installed on the mounting seat. The lower part of the mounting seat has a slider that is slidably connected to the guide rail. The top plate is also connected to a handle for driving the mounting seat to move along the guide rail.
[0013] Furthermore, a locking bolt is threaded onto one side of the connecting seat, and the feeler gauge is detachably fixed to one side of the connecting seat by the locking bolt, and the feeler gauge can rotate around the connecting seat.
[0014] The beneficial effects of this utility model are:
[0015] (1) This utility model enables rapid determination of whether the regular surface dimensions of the salt core are qualified without using calipers, improves the efficiency of batch testing of salt cores, reduces the error of human reading, and improves the consistency of test results.
[0016] (2) The distance between the first positioning plate and the second positioning plate is adjustable, which makes it easy to adjust the detection area distance of the detection tool according to the size of the salt core to be tested. It is suitable for the detection of salt cores of different sizes, thus expanding the versatility of the detection tool.
[0017] (3) A locking mechanism for holding the double-headed stud is provided on one side of the fixed seat. After the distance between the first positioning plate and the second positioning plate is adjusted, the locking mechanism is used to hold the double-headed stud, which prevents the first positioning plate and the second positioning plate from moving in an unexpected state and ensures the accuracy of the detection.
[0018] (4) By setting a scale on one side of the first positioning plate and aligning the zero mark of the scale with the detection surface of the first positioning plate, it is easy to quickly read the distance between the first positioning plate and the second positioning plate, thereby improving the efficiency of adjusting the distance between the first positioning plate and the second positioning plate.
[0019] (5) The stop gauge mechanism is movably installed on the top plate of the first positioning plate, which not only facilitates the adjustment of the position of the stop gauge mechanism according to the position of the salt core in the detection area, but also facilitates the detection of different positions of the salt core.
[0020] (6) The feeler gauge is detachably connected to the connecting seat by a locking bolt, which makes it easy to replace different feeler gauges according to the tolerance value of the salt core, thus enhancing the flexibility of the testing tool. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a rapid batch inspection tool for the dimensions of a regular salt core surface according to this utility model.
[0022] Figure 2 This is a schematic diagram of the bottom of the first and second positioning plates.
[0023] Figure 3 This is a schematic diagram of the base plate structure.
[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle.
[0025] Figure 5 This is a schematic diagram of the first positioning plate.
[0026] Figure 6 This is an exploded diagram of the regulatory agency.
[0027] In the diagram, 1. Base plate; 11. Foot pad; 12. Column; 13. Double-ended stud; 14. Knob; 15. Base; 16. Clamping clamp; 17. Locking handle; 2. Support plate; 3. First positioning plate; 31. Through groove; 32. Screw sleeve; 33. Scale; 34. Top plate; 4. Second positioning plate; 5. No-stop gauge mechanism; 51. Mounting seat; 52. Handle; 53. Connecting seat; 54. Feeler gauge; 55. Locking bolt; 56. Guide rail; 57. Slider. Detailed Implementation
[0028] The following will be combined with the appendix Figures 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. 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.
[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] like Figure 1 As shown, a rapid batch inspection tool for the dimensions of regular salt core surfaces includes a base plate 1, with foot pads 11 at the bottom and a column 12 at the top. A support plate 2 is located on the top of the column 12. A first positioning plate 3 and a second positioning plate 4 are symmetrically arranged on the top of the support plate 2. The distance between the first positioning plate 3 and the second positioning plate 4 is equal to the upper tolerance limit of the salt core surface to be inspected. A stop-gauge mechanism 5 is also provided on the top of the first positioning plate 3. Figure 5 As shown, the stop gauge mechanism 5 includes a connecting seat 53, the outer end face of the connecting seat 53 is flush with the outer wall of the first positioning plate 3, and a feeler gauge 54 is rotatably connected to one side of the connecting seat 53. The thickness of the feeler gauge 54 is equal to the allowable tolerance value of the salt core profile size.
[0031] Based on the dimensions of the regular surface of the salt core, select the corresponding inspection tool. Since the distance between the first positioning plate 3 and the second positioning plate 4 is equal to the standard dimensions of the surface of the salt core to be inspected, when the salt core cannot be placed between the first positioning plate 3 and the second positioning plate 4, it indicates that the surface dimensions of the salt core are greater than the upper limit of the tolerance value, and it is judged as unqualified.
[0032] When the salt core can be smoothly placed between the first positioning plate 3 and the second positioning plate 4, the feeler gauge 54 is rotated downwards. When the feeler gauge 54 can be smoothly inserted between the salt core profile and the outer wall of the first positioning plate 3, it indicates that the salt core profile size is less than the lower limit of the allowable tolerance value, and it is judged as unqualified. When the feeler gauge 54 cannot be inserted between the salt core profile and the outer wall of the first positioning plate 3, it indicates that the salt core profile size is within the allowable tolerance range, and it is judged as qualified. Without using calipers to read the dimensions, a rapid determination of whether the regular profile size of the salt core is qualified is achieved.
[0033] like Figure 5 As shown, both the first positioning plate 3 and the second positioning plate 4 have through grooves 31 at their lower parts, and the through grooves 31 are slidably connected to the support plate 2, as shown. Figure 2 As shown, both the bottom of the first positioning plate 3 and the second positioning plate 4 are fixedly connected with screw sleeves 32; Figure 3As shown, a double-ended stud 13 is rotatably connected to the upper part of the base plate 1 via a fixed seat. The double-ended stud 13 is threadedly connected to the threaded sleeve 32. One end of the double-ended stud 13 is provided with a knob 14. By rotating the knob 14, the double-ended stud 13 drives the first positioning plate 3 and the second positioning plate 4 to move closer or further apart on the support plate 2, thereby adjusting the distance between the first positioning plate 3 and the second positioning plate 4 and expanding the detection range of the testing tool. When determining the distance between the first positioning plate 3 and the second positioning plate 4, a standard block can be placed between the first positioning plate 3 and the second positioning plate 4. The size of the standard block is equal to the profile size of the qualified salt core. Then, the knob 14 is rotated to bring the first positioning plate 3 and the second positioning plate 4 closer together and make them fit against the standard block. Then, the standard block is removed. At this time, the distance between the first positioning plate 3 and the second positioning plate 4 is the standard size of the qualified product. Alternatively, the caliper can be adjusted to the size of the product to be tested and locked first, and then the first positioning plate 3 and the second positioning plate 4 can be adjusted to the size of the caliper. The support plate 2 and the column 12 are detachably connected by bolts, which facilitates the disassembly and installation of the first positioning plate 3 and the second positioning plate 4.
[0034] like Figure 3 , Figure 4 As shown, a locking mechanism is provided on one side of the fixed base. The locking mechanism includes a base 15 fixedly installed on one side of the fixed base. A clamping clamp 16 is provided on one side of the base 15. A locking handle 17 is threadedly connected to one side of the clamping clamp 16. After the distance between the first positioning plate 3 and the second positioning plate 4 is adjusted, the locking handle 17 is rotated to clamp the double-headed stud 13 with the clamp, which prevents the first positioning plate 3 and the second positioning plate 4 from moving in an unexpected state and ensures the accuracy of the detection.
[0035] like Figure 1 , Figure 5 As shown, a scale 33 is fixedly connected to one side of the first positioning plate 3. The zero mark of the scale 33 is aligned with the detection surface of the first positioning plate 3. The scale 33 is slidably connected to the side of the second positioning plate 4, which facilitates quick reading of the distance between the first positioning plate 3 and the second positioning plate 4.
[0036] like Figure 5 As shown, the first positioning plate 3 has a top plate 34 on its upper part, and a guide rail 56 on the top plate 34. The top plate 34 also has a mounting base 51 on its upper part. The connecting seat 53 of the stop gauge mechanism 5 is fixedly installed on the mounting base 51. The lower part of the mounting base 51 has a slider 57 that is slidably connected to the guide rail 56. The top plate 34 is also connected to a handle for driving the mounting base 51 to move along the guide rail 56, which facilitates adjusting the position of the stop gauge mechanism 5 according to the position of the salt core in the detection area, and also facilitates the detection of different positions of the salt core.
[0037] like Figure 6As shown, a locking bolt 55 is threadedly connected to one side of the connecting seat 53, and a feeler gauge 54 is disposed between the connecting seat 53 and the locking bolt 55. The locking bolt 55 and the connecting seat 53 are detachably connected, which facilitates the replacement of different feeler gauges 54 according to the tolerance value of the salt core. When installing the feeler gauge 54, the locking bolt 55 is used to fit the end face of the feeler gauge 54 against the connecting seat 53, but it is not locked, so that the feeler gauge 54 can rotate around the mounting seat 51 when an external force is applied.
[0038] The above content is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the utility model, they should all fall within the protection scope of this utility model.
Claims
1. A salt core gauge regular profile size rapid batch detection tool, characterized in that, include: The base plate has foot pads at the bottom and a support plate connected to the upper part by columns; A first positioning plate and a second positioning plate are symmetrically arranged on the support plate, and the distance between the first positioning plate and the second positioning plate is equal to the upper limit of the tolerance of the salt core surface dimension to be measured. The stop gauge mechanism located on the top of the first positioning plate includes a connecting seat and a feeler gauge that is attached to and rotatably connected to the end face of the connecting seat. The outer end face of the connecting seat is flush with the outer wall of the first positioning plate, and the thickness of the feeler gauge is equal to the allowable tolerance value of the salt core profile size.
2. The rapid batch inspection tool for the dimensions of regular salt core surfaces according to claim 1, characterized in that, The first positioning plate and the second positioning plate are both provided with through grooves at their lower parts, and the through grooves are slidably connected to the support plate. The bottom of the first positioning plate and the second positioning plate are both fixedly connected with threaded sleeves. The upper part of the base plate is rotatably connected with a double-ended stud through a fixed seat. The double-ended stud is threadedly connected to the threaded sleeve. One end of the double-ended stud is provided with a knob. The support plate and the column are detachably connected by bolts.
3. The rapid batch inspection tool for the dimensions of regular salt core surfaces according to claim 2, characterized in that, The fixed base is provided with a locking mechanism on one side. The locking mechanism includes a base fixedly installed on one side of the fixed base. A clamping clamp is provided on one side of the base, and a locking handle is threadedly connected to one side of the clamping clamp.
4. The rapid batch inspection tool for the dimensions of regular salt core surfaces according to claim 2, characterized in that, A scale is fixedly connected to one side of the first positioning plate. The zero mark of the scale is aligned with the detection surface of the first positioning plate, and the scale slides with the side of the second positioning plate.
5. The rapid batch inspection tool for the dimensions of regular salt core surfaces according to claim 1, characterized in that, The first positioning plate has a top plate on its upper part, a guide rail on the top plate, and a mounting base on the upper part of the top plate. The connecting seat of the stop gauge mechanism is fixedly installed on the mounting base. The lower part of the mounting base has a slider that is slidably connected to the guide rail. The top plate is also connected to a handle for driving the mounting base to move along the guide rail.
6. A rapid batch inspection tool for the dimensions of regular salt core surfaces according to any one of claims 1-5, characterized in that, A locking bolt is threaded onto one side of the connecting seat. The feeler gauge can be detachably fixed to one side of the connecting seat by the locking bolt, and the feeler gauge can rotate around the connecting seat.