Machine clamping type hob tooth thickness rapid measuring device and measuring method

Abstract

The invention discloses a mechanically-clamped hob tooth thickness rapid measuring device and method, the mechanically-clamped hob tooth thickness rapid measuring device comprises a first supporting member, a connecting member, a first measuring member, a second measuring member and a second supporting member, the first connecting member comprises a fixed part and a rotating part, the fixed part is used for supporting, and the rotating part can rotate around the fixed part; one end of the connecting piece is detachably connected with the rotating part, and the connecting piece can be driven to rotate synchronously when the rotating part rotates; the first measuring piece is detachably connected to the other end of the connecting piece, the first measuring piece comprises a measuring unit and a display unit, and the second measuring piece is used for independently measuring the hob teeth and used for being matched with the first measuring piece to determine the thickness of the hob teeth; the second supporting piece is used for supporting and fixing the hobbing cutter to measure the thickness of the cutter teeth when being used; the device can realize rapid tooth thickness measurement on a hob processing site and a hob using site, is simple in structure, high in measurement precision and low in cost, can be used in single-piece and batch production, and improves the detection and processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of tooth thickness measurement, and in particular to a machine-clamped hob tooth thickness rapid measurement device and a measurement method. Background Art

[0002] Gear hobbing is the most commonly used method for gear processing. Hobs are essential tools for gear hobbing. Commonly used hobs include integral hobs, insert hobs and other structures. This type of hob has a low cutting speed and requires continuous grinding and coating of the front edge of the hob. The tooth thickness of the newly manufactured and reground hobs needs to be tested to ensure the accuracy of the processed products. The tooth thickness value directly affects the two important parameters of the gear parameters, the normal line and the root circle diameter. This type of hob can be tested for tool tooth thickness using universal gear testing equipment. Both tool manufacturers and tool users have testing functions.

[0003] The machine-clamped hob is a gear processing tool, which is widely used in the wind power industry and other industries. The tool has the characteristics of high linear speed and high feed speed, and the blade only needs to be replaced after being worn, which has no effect on the production progress and beat. However, the blades on the left and right tooth surfaces of the hob are asymmetrically designed on the cutter body. The disadvantage of this design is that the general gear detection equipment cannot continuously perform tool numerical scanning and tool tooth thickness detection. If measurement is required, it is necessary to re-purchase three-coordinate or projector detection equipment for detection. The detection cycle is long, the purchase price of equipment is high, and the measurement cost is high. Summary of the invention

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides a machine-clamped hob tooth thickness rapid measurement device and measurement method, which can realize rapid measurement of tooth thickness at the hob processing site and the hob use site. The device has a simple structure, high measurement accuracy, easy use, low cost, and can be used in single-piece and batch production, thereby improving the detection and processing efficiency.

[0005] The technical solution of the present invention is as follows:

[0006] In a first aspect, the present invention provides a machine-clamped hob tooth thickness rapid measurement device, comprising:

[0007] A first supporting member, wherein the first connecting member comprises a fixed portion and a rotating portion, the fixed portion is used for supporting, and the rotating portion can rotate around the fixed portion;

[0008] A connecting member, one end of which is detachably connected to the rotating part, and can drive the connecting member to rotate synchronously when the rotating part rotates;

[0009] A first measuring member, the first measuring member is detachably connected to the other end of the connecting member, the first measuring member comprises a measuring unit and a display unit, when in use, the measuring unit contacts the hob cutter teeth to be measured and displays through the display unit;

[0010] a second measuring piece, the second measuring piece being used to measure the hob cutter teeth separately and being used to cooperate with the first measuring piece to determine the thickness of the hob cutter teeth;

[0011] a second support member, wherein the second support member is used to support and fix the hob to measure the thickness of the cutter teeth when in use;

[0012] When measuring the thickness of a hob tooth, the hob is placed on the second support member for support and fixation, the first support member is placed on one side of the hob or in the inner hole of the hob, the connecting member is adjusted so that the measuring unit contacts the highest point on one side of any left tooth surface on the hob and a first value is displayed on the display unit, the connecting member is adjusted and rotated so that the measuring unit is located at the highest point of the right tooth surface adjacent to the left tooth surface, and the display unit displays a second value, and at the same time, the thickness of any tooth on the hob is measured by the second measuring member, and the measured tooth height value is adjusted to the designed tooth height value, the measured tooth thickness is recorded as a third value, and the tooth thickness of the hob tooth being measured is obtained by calculating the first value, the second value and the third value.

[0013] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measuring device, the connecting part includes one or more solid or hollow connecting rods. When multiple connecting rods are provided, the multiple connecting rods are connected by threads and snap-fits so that the height and direction of the multiple connecting rods can be adjusted at the same time.

[0014] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measurement device, the first measuring component includes a dial indicator or a micrometer.

[0015] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measuring device, the measuring unit includes a measuring needle, a measuring probe or a measuring rod equipped with a measuring probe, and the display unit includes a dial or a display screen.

[0016] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measurement device, the second measuring member includes a tooth thickness caliper.

[0017] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measuring device, the second supporting member comprises a symmetrical member with a V-shaped or arc-shaped structure.

[0018] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measurement device, the second support member includes a V-shaped iron.

[0019] In a second aspect, the present invention further provides a method for quickly measuring the tooth thickness of a machine-clamped hob, comprising:

[0020] Measuring the size of the top of any left tooth surface on the hob cutter tooth to obtain a first value;

[0021] Measuring the size of the top of the right tooth surface adjacent to the left tooth surface on the hob cutter tooth to obtain a second value;

[0022] Measuring the thickness of any hob cutter tooth according to the designed tooth top height of the hob cutter tooth to obtain a third value;

[0023] According to the obtained first value, second value and third value, the actual tooth thickness of the hob cutter teeth is obtained by using a hob cutter tooth thickness calculation formula.

[0024] Furthermore, in the above-mentioned machine-clamped hob tooth thickness rapid measurement method, the hob tooth thickness calculation formula is as follows:

[0025] The actual tooth thickness of the hob cutter teeth=the third value+the second value-the first value.

[0026] The main advantages of the technical solution of the present invention are as follows:

[0027] The machine-clamped hob tooth thickness rapid measuring device of the present invention measures the hob tooth thickness through the structure of the first support member, the second support member, the connecting member, the first measuring member and the second measuring member. The structure is simple, and the height difference of the blade back angle is measured by rotating the dial indicator, and the value is accurate and precise. The dial indicator and the tooth thickness caliper are used for measurement, and the versatility is strong. The measurement is performed by non-standard devices and standard measuring tools, and the investment in equipment is small, which saves costs. When measuring the hob tooth thickness, the value of the top of the left tooth surface and the right tooth surface on the hob tooth is measured, and the value of the thickness of any hob tooth is measured according to the designed tooth top height of the hob tooth in cooperation with the second measuring member to obtain the final tooth thickness size by calculation. The measurement accuracy is high and the result is reliable. It can be used in single-piece and batch production, and the detection and processing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 A schematic structural diagram of a machine-clamped hob tooth thickness rapid measurement device from one perspective according to an embodiment of the present invention;

[0030] Figure 2 A schematic structural diagram of another viewing angle of a machine-clamped hob tooth thickness rapid measurement device provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of measuring the front end top of any tooth on a hob in a machine-clamped hob tooth thickness rapid measurement device provided by an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of measuring the highest point of the rear end of the same cutter tooth on the top of the front end of the hob in the machine-clamped hob tooth thickness rapid measurement device provided by one embodiment of the present invention;

[0033] Figure 5 for Figure 3 Schematic diagram of the structure of AA;

[0034] Figure 6 for Figure 3 Schematic diagram of the structure of the medium BB;

[0035] Figure 7 for Figure 3 Schematic diagram of the structure of CC;

[0036] Figure 8 for Figure 3 Schematic diagram of the enlarged structure of the middle Q part;

[0037] Description of reference numerals:

[0038] 1. First support member; 2. Connecting member; 3. First measuring member; 4. Second measuring member; 5. Second support member; 6. Hob; 7. Cutting teeth. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

[0041] As attached Figure 1-8 As shown, an embodiment of the present invention provides a machine-clamped hob tooth thickness rapid measurement device, the device comprising: a first support member 1, a connecting member 2, a first measuring member 3, a second measuring member 4, and a second support member 5, wherein:

[0042] The first connecting member 2 includes a fixed part and a rotating part, the fixed part is used for supporting, and the rotating part can rotate around the fixed part; one end of the connecting member 2 is detachably connected to the rotating part, and when the rotating part rotates, it can drive the connecting member 2 to rotate synchronously; the first measuring member 3 is detachably connected to the other end of the connecting member 2, and the first measuring member 3 includes a measuring unit and a display unit. When in use, the measuring unit contacts the hob teeth to be measured and displays through the display unit; the second measuring member 4 is used to measure the hob teeth separately, and is used to cooperate with the first measuring member 3 to determine the thickness of the hob teeth; the second supporting member 5 is used to support and fix the hob 6 to measure the thickness of the teeth 7 when in use;

[0043] The principle of using the machine-clamped hob tooth thickness rapid measuring device of the present invention to measure the hob tooth thickness is further explained:

[0044] Specifically, when measuring the thickness of the hob teeth, the hob 6 is placed on the second support member 5 for support and fixation, the first support member 1 is placed on one side of the hob 6 or in the inner hole of the hob 6, the connecting member 2 is adjusted so that the measuring unit contacts the highest point on one side of any left tooth surface on the hob 6 and displays a first value on the display unit, the connecting member 2 is adjusted and rotated so that the measuring unit is located at the highest point of the right tooth surface adjacent to the left tooth surface, and the display unit displays a second value, and at the same time, the thickness of any tooth 7 on the hob 6 is measured by the second measuring member 4, and the measured tooth height value is adjusted to the designed tooth height value, and the measured thickness of the tooth 7 is recorded as the third value, and the tooth thickness of the measured hob tooth is obtained by calculating the first value, the second value and the third value.

[0045] Therefore, the machine-clamped hob tooth thickness rapid measuring device of the present invention measures the top values ​​of the left tooth surface and the right tooth surface on the hob tooth, and cooperates with the second measuring piece 4 to measure the thickness of any hob tooth according to the designed tooth top height of the hob tooth to obtain the value, and obtains the final tooth thickness size in a calculation manner. It has high measurement accuracy and reliable results, can be used in single-piece and batch production, and improves detection and processing efficiency.

[0046] Preferably, the connecting member 2 comprises one or more solid or hollow connecting rods. When multiple connecting rods are provided, the multiple connecting rods are connected by threads and snaps so that the multiple connecting members 2 can adjust the height and direction at the same time.

[0047] Such an arrangement enables the connecting member 2 to have a lifting function, thereby being able to match the measurement of the tooth thickness of hobs 6 of different sizes and heights, making the machine-clamped hob tooth thickness rapid measurement device in the present invention more widely applicable and meeting the measurement requirements of hobs 6 of different sizes and specifications.

[0048] In some optional implementations of this embodiment, the first measuring member 3 includes a dial indicator or a micrometer.

[0049] In some optional implementations of this embodiment, the measuring unit includes a measuring needle, a measuring head, or a measuring rod equipped with a measuring head, and the display unit includes a dial or a display screen.

[0050] With such an arrangement, when the hob 6 is measured by means of the above-mentioned dial indicator, the measuring needle contacts the teeth 7 of the hob 6, and the value contacted by the measuring needle is displayed by a dial or a display, so that the displayed value can be displayed accurately and clearly, and can be read accurately, thereby being able to further accurately calculate the thickness of the hob teeth.

[0051] In some optional implementations of this embodiment, the second measuring member 4 includes a tooth thickness caliper.

[0052] With such an arrangement, the tooth thickness of the hob 6 is measured by a tooth thickness caliper, which has a simple structure, is convenient for measurement, has accurate measurement results, is easy to read the measurement value, and can be conveniently combined with the first measuring piece 3 to measure the tooth thickness of the hob 6.

[0053] In some optional implementations of this embodiment, the second support member 5 comprises a symmetrical member with a V-shaped or arc-shaped structure. Preferably, the second support member 5 is a V-shaped iron.

[0054] In a second aspect, the present invention further provides a method for quickly measuring the tooth thickness of a machine-clamped hob, comprising:

[0055] Measure the size of the top of any left tooth surface on the hob tooth to obtain a first value; measure the size of the top of the right tooth surface adjacent to the left tooth surface on the hob tooth to obtain a second value; measure the thickness of any hob tooth according to the designed tooth top height of the hob tooth to obtain a third value; based on the obtained first value, second value and third value, obtain the actual tooth thickness of the hob tooth using the hob 6 tooth thickness calculation formula.

[0056] Specifically, the calculation formula for the tooth thickness of the hob 6 is as follows:

[0057] The actual tooth thickness of the hob cutter teeth=the third value+the second value-the first value.

[0058] For example, in combination Figure 1-Figure 8 When measuring the teeth 7 of the hob 6, the first support member 1, the connecting member 2, the first measuring member 3, and the second support member 5 of the present invention are connected in a preset manner, and the position of the serial connecting member 2 is adjusted to ensure that the first measuring member 3, such as the position of the dial indicator needle, is at the top of the front end of any blade and has a certain amount of pressure. At this time, the percentage value is recorded as I, such as Figure 3 Slowly rotate the first support member 1 to ensure that the dial indicator needle moves smoothly to the highest point of the rear end of the same blade body, at this time the percentage value is recorded as J, such as Figure 4As shown, the AA section view is the front end view of the left tooth surface blade. Figure 5 As shown, the enlarged image is Figure 8 As shown, a second measuring device 4, such as a tooth thickness caliper, is used to calibrate the tooth height to be the tooth top height E in the design drawing of the hob 6. At this time, the measured value is D, and the BB section view is the highest position of the blade body at the rear end, such as Figure 6 As shown, the enlarged image is Figure 8 As shown, the calibrated tooth height is E-|IJ|, the tooth thickness measurement value is F, and the CC section view is the front end view of the corresponding right tooth surface blade, as shown Figure 7 As shown, the enlarged image is Figure 8 As shown, the calibrated tooth height is the tooth top height E in the design drawing of the hob 6. At this time, the measured value is H, and the actual tooth thickness of the hob 6 is calculated by the formula D+HF.

[0059] In order to verify the accuracy of the measured and calculated results, the measured and calculated thickness of the hob 6's tooth 7 can be compared with the theoretical value of the hob 6 design drawing. If the preset error is met, the measured precision size of the hob 6's tooth 7 meets the design value. If the preset error is not met, the measured hob 6's tooth 7 does not meet the design value. In this way, it can be inferred whether the parameters of the tooth 7 after processing are qualified.

[0060] At the same time, in order to enable the measuring device of the present invention to measure the thickness of the hob teeth located inside the machine tool, the first support member 1 and the second support member 5 can be set as a magnetic table base and a table frame matching the magnetic base, so that when the hob 6 is installed inside the machine tool, the dial indicator can be directly adsorbed on the machine tool column position through the magnetic table base when measurement is required, and the hob 6 is controlled to rotate by a handwheel to measure the above-mentioned first value and second value, such as I and J. The remaining measurement methods are carried out in the same way as above until all values ​​are obtained to obtain the thickness value of the measured hob teeth.

[0061] Therefore, the machine-clamped hob tooth thickness rapid measuring device and measuring method of the present invention measures the height difference of the blade back angle by rotating the dial indicator, and the value is accurate and precise; it uses the dial indicator and the tooth thickness caliper for measurement, and has strong versatility; it uses non-standard devices and standard measuring tools for measurement, and requires less equipment and saves costs; it can measure on-site in the workshop and inside the machine tool, and has a wide range of uses; it can also provide a basis for measuring the tooth 7 of the same structure, such as the measurement of the tooth height of gears and racks.

[0062] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A machine-clamped hob tooth thickness rapid measurement device, characterized in that: include: A first supporting member, wherein the first connecting member comprises a fixed portion and a rotating portion, the fixed portion is used for supporting, and the rotating portion can rotate around the fixed portion; A connecting member, one end of which is detachably connected to the rotating part, and can drive the connecting member to rotate synchronously when the rotating part rotates; A first measuring member, the first measuring member is detachably connected to the other end of the connecting member, the first measuring member comprises a measuring unit and a display unit, when in use, the measuring unit contacts the hob cutter teeth to be measured and displays through the display unit; a second measuring piece, the second measuring piece being used to measure the hob cutter teeth separately and being used to cooperate with the first measuring piece to determine the thickness of the hob cutter teeth; a second support member, wherein the second support member is used to support and fix the hob to measure the thickness of the cutter teeth when in use; When measuring the thickness of a hob tooth, the hob is placed on the second support member for support and fixation, the first support member is placed on one side of the hob or in the inner hole of the hob, the connecting member is adjusted so that the measuring unit contacts the highest point on one side of any left tooth surface on the hob and a first value is displayed on the display unit, the connecting member is adjusted and rotated so that the measuring unit is located at the highest point of the right tooth surface adjacent to the left tooth surface, and the display unit displays a second value, and at the same time, the thickness of any tooth on the hob is measured by the second measuring member, and the measured tooth height value is adjusted to the designed tooth height value, the measured tooth thickness is recorded as a third value, and the tooth thickness of the hob tooth being measured is obtained by calculating the first value, the second value and the third value.

2. The machine-clamped hob tooth thickness rapid measurement device according to claim 1 is characterized in that: The connecting piece includes one or more solid or hollow connecting rods. When multiple connecting rods are provided, the multiple connecting rods are connected by threads and buckles so that the height and direction of the multiple connecting pieces can be adjusted at the same time.

3. The machine-clamped hob tooth thickness rapid measurement device according to claim 1 is characterized in that: The first measuring member includes a dial indicator or a micrometer.

4. The machine-clamped hob tooth thickness rapid measurement device according to claim 1 is characterized in that: The measuring unit includes a measuring needle, a measuring head or a measuring rod matched with a measuring head, and the display unit includes a dial or a display screen.

5. The machine-clamped hob tooth thickness rapid measuring device according to claim 1 is characterized in that: The second measuring member includes a tooth thickness caliper.

6. The machine-clamped hob tooth thickness rapid measurement device according to claim 1 is characterized in that: The second supporting member comprises a symmetrical member with a V-shaped or arc-shaped structure.

7. The machine-clamped hob tooth thickness rapid measuring device according to any one of claims 1 or 6, characterized in that: The second supporting member includes a V-shaped iron.

8. A method for rapid measurement of tooth thickness of a machine-clamped hob, characterized in that: include: Measuring the size of the top of any left tooth surface on the hob cutter tooth to obtain a first value; Measuring the size of the top of the right tooth surface adjacent to the left tooth surface on the hob cutter tooth to obtain a second value; Measuring the thickness of any hob cutter tooth according to the designed tooth top height of the hob cutter tooth to obtain a third value; According to the obtained first value, second value and third value, the actual tooth thickness of the hob cutter teeth is obtained by using a hob cutter tooth thickness calculation formula.

9. The method for rapid measurement of tooth thickness of a machine-clamped hob according to claim 8, characterized in that: The calculation formula of the hob tooth thickness is as follows: The actual tooth thickness of the hob cutter teeth=the third value+the second value-the first value.

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