A device suitable for measuring the height or distance of a tool holder.
By designing a device comprising a base, a top cover, an interface seat, a tool holder, and a comparative gauge, and by adjusting the tool holder height using a knob and a reference height block, the problem of insufficient measurement accuracy in mechanical assembly is solved, achieving precise measurement and wide applicability.
Patent Information
- Application Number
- CN202522510165.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-26
AI Technical Summary
During mechanical assembly, existing measuring equipment is difficult to accurately control distance or height, general vernier calipers are not accurate enough, specially designed tooling is used in a single environment and is costly, and ordinary equipment is prone to measurement errors.
A device comprising a base, a top cover, an interface seat, a tool holder, an instrument mounting base, and a comparative measuring instrument was designed. The height is adjusted by a first knob and a second knob, and precise measurement is achieved by combining reference height blocks of different specifications and a dial indicator.
It enables precise measurement of tool holder height or distance, reduces measurement errors, is easy to operate, has a wide range of applications, and lowers usage costs.
Smart Images

Figure CN224945371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of measuring mechanisms, and in particular to a device suitable for measuring the height or distance of a tool holder. Background Technology
[0002] In the mechanical assembly process, some special positions require precise control of distance or height. The accuracy that general vernier calipers can achieve is very limited and cannot meet the requirements. If specially designed tooling is used, the usage environment is singular, the investment is large, the delivery time is long, and the usage cost is increased. Using ordinary measuring equipment is prone to causing significant measurement errors. Utility Model Content
[0003] This invention addresses the shortcomings of existing technologies by providing a device suitable for measuring the height or distance of a tool holder. The height of the measuring tool can be fixed and adjusted using a first knob and a second knob, making adjustment convenient, saving time, eliminating measurement errors, and offering greater ease of use and wider applicability.
[0004] To solve the above-mentioned technical problems, the present invention adopts a device suitable for measuring the height or distance of a tool holder, comprising: a base, a top cover disposed on the base, an interface seat fitted inside the top cover, a tool holder disposed inside the interface seat, an instrument mounting base slidably connected to the tool holder, and a comparative measuring tool disposed on the instrument mounting base. A flange is locked to the bottom of the interface seat, and the flange is rotatably connected between the base and the top cover. The top cover is provided with a plurality of threaded holes for placing reference height blocks. A guide rail is provided on the upper side of the tool holder. A dovetail groove is provided on the instrument mounting base and slidably connected to the guide rail. A through hole is provided on the instrument mounting base for mounting the comparative measuring tool. A first knob and a second knob are provided on the instrument mounting base. The first knob is used to lock the mounting position of the instrument mounting base, and the second knob is used to lock the mounting position of the comparative measuring tool.
[0005] In a preferred embodiment of the present invention, the first knob is threadedly connected to the side of the dovetail groove on the instrument mounting base, and the front end of the first knob can extend into the dovetail groove to abut against the side wall of the guide rail.
[0006] In a preferred embodiment of the present invention, the second knob is threadedly connected to the side of the through hole on the instrument mounting base, and the front end of the second knob can extend into the through hole to abut against the comparative measuring tool.
[0007] In a preferred embodiment of this utility model, the interface seat is interference-fitted with the tool holder.
[0008] In a preferred embodiment of this utility model, the interface seat and the flange are connected by screws, and the upper cover and the base are connected by screws.
[0009] In a preferred embodiment of this utility model, the comparative measuring instrument is a dial indicator.
[0010] In a preferred embodiment of this utility model, the heights of the plurality of reference height blocks are different, and they are threadedly connected to the upper cover.
[0011] The beneficial effects of this utility model are: the height of the comparative measuring tool can be fixed and adjusted by using the first knob and the second knob, which is convenient and saves time. By selecting reference height blocks of different specifications, a variety of applicable reference heights can be measured by using comparative measuring tools such as dial indicators. The measurement error is small, the operation is convenient, and the application range is wider, which brings great convenience to production and use. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0013] Figure 1 This is a schematic diagram of the device of this utility model for measuring the height or distance of a tool holder;
[0014] Figure 2 This is an exploded view of the device of this utility model applicable to measuring the height or distance of a tool holder;
[0015] Figure 3 for Figure 1 A sectional view. Detailed Implementation
[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.
[0017] Please see Figure 1-3This utility model discloses a device for measuring the height or distance of a tool holder, comprising: a base 1, an upper cover 2 disposed on the base, an interface seat 3 fitted inside the upper cover, a tool holder 4 disposed inside the interface seat, an instrument mounting base 5 slidably connected to the tool holder, and a comparative measuring tool 6 disposed on the instrument mounting base. A flange 7 is locked and connected below the interface seat. The interface seat and the flange are locked and connected by screws. The upper cover and the base are locked and connected by screws with a gap remaining. The flange is rotatably connected within the gap between the base and the upper cover, thereby enabling rotation to facilitate the alignment and measurement of the comparative measuring tool connected to the tool holder with different reference height blocks 8.
[0018] Furthermore, the upper cover is provided with several threaded holes 9 for placing reference height blocks 8. Each reference height block is installed in the threaded hole and threadedly connected to the upper cover and the base. The heights of the reference height blocks are different. By selecting reference height blocks of different specifications, various applicable reference heights can be measured using comparative measuring tools such as dial indicators. This facilitates the height adjustment of tool holders of different specifications, such as HSK63 and HSK40, when they are installed with the spindle. The measurement error is small and the operation is convenient.
[0019] Furthermore, a guide rail 10 is provided on the upper side of the tool holder, and the guide rail is integrally formed on the side of the tool holder. A dovetail groove 11 is provided on the instrument mounting base to slide and connect with the guide rail. The instrument mounting base is provided with a through hole 12 for mounting the comparative measuring instrument. The instrument mounting base is provided with a first knob 13 and a second knob 14. The first knob is used to lock the mounting position of the instrument mounting base, and the second knob is used to lock the mounting position of the comparative measuring instrument.
[0020] Specifically, the first knob is threaded to the side of the dovetail groove on the instrument mounting base. The front end of the first knob can extend into the dovetail groove and abut against the side wall of the guide rail. By rotating the first knob, the instrument mounting base with the adjusted height can be locked and positioned. Similarly, the second knob is threaded to the side of the through hole on the instrument mounting base. The front end of the second knob can extend into the through hole and abut against the comparator. In this embodiment, the comparator is a dial indicator. When the dial indicator moves up and down to the appropriate measuring height, the dial indicator with the adjusted height can be locked and positioned by rotating the second knob.
[0021] Specifically, the interface seat and tool holder are connected by an interference fit, which is convenient for disassembly and assembly. Rotate the interface seat to align with the required reference height block, use a dial indicator to measure the height of the reference height block corresponding to the tool holder, and calibrate the dial indicator reading to be close to 0. At this point, the tool holder and interface seat can be removed, and all components on the tool holder can be installed on the spindle or other application scenarios. Then, the dial indicator and other components on the tool holder can be used to complete distance or height measurement, which is convenient for subsequent calibration.
[0022] The beneficial effects of this utility model are: the height of the comparative measuring tool can be fixed and adjusted by using the first knob and the second knob, which is convenient and saves time. By selecting reference height blocks of different specifications, a variety of applicable reference heights can be measured by using comparative measuring tools such as dial indicators. The measurement error is small, the operation is convenient, and the application range is wider, which brings great convenience to production and use.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device suitable for tool shank height or distance measurement, characterized in that, include: The instrument includes a base, a top cover mounted on the base, an interface seat fitted inside the top cover, a tool holder mounted inside the interface seat, an instrument mounting base slidably connected to the tool holder, and a comparative measuring instrument mounted on the instrument mounting base. A flange is locked to the bottom of the interface seat and rotatably connected between the base and the top cover. The top cover has several threaded holes for placing reference height blocks. A guide rail is provided on the upper side of the tool holder. The instrument mounting base has a dovetail groove that slidably connects with the guide rail. The instrument mounting base has a through hole for mounting the comparative measuring instrument. The instrument mounting base has a first knob and a second knob. The first knob is used to lock the instrument mounting base in its mounting position, and the second knob is used to lock the comparative measuring instrument in its mounting position.
2. A device for measuring the height or distance of a tool shank according to claim 1, characterized in that The first knob is threaded to the side of the dovetail groove on the instrument mounting base, and the front end of the first knob can extend into the dovetail groove to abut against the side wall of the guide rail.
3. A device for measuring the height or distance of a tool shank according to claim 2, characterized in that The second knob is threaded to the side of the through hole on the instrument mounting base, and the front end of the second knob can extend into the through hole to abut against the comparative gauge.
4. A device for measuring the height or distance of a tool shank according to claim 1, characterized in that, The interface seat is interference-fitted with the tool holder.
5. A device for measuring the height or distance of a tool shank according to claim 4, characterized in that The interface seat and the flange are connected by screws, and the top cover and the base are connected by screws.
6. The device for measuring the height or distance of a tool holder according to claim 1, characterized in that, The comparative measuring instrument is a dial indicator.
7. The device for measuring the height or distance of a tool holder according to claim 1, characterized in that, The heights of the aforementioned reference height blocks are not the same, and they are threadedly connected to the upper cover.
