Blade root broach test block adjuster

Abstract

The utility model provides leaf root broach test block regulator, the utility model discloses at least two sets of adjusting unit are set up along the height direction on the base body, can install adjusting unit respectively according to the need of different position of test grinding block, realizes the error adjustment to test grinding block side surface and end surface, passes through the adjusting screw, piston rod and the guiding channel cooperative work adjusting structure of channel simultaneously, can support and adjust test grinding block from multiple points, makes the stress more even, realizes the accurate, nimble adjustment of test grinding block side surface and both end surface position, simultaneously in the tooth profile measurement process, guiding channel restricts adjusting screw and piston rod, realizes the high -accuracy linear motion adjustment, greatly reduces the error such as shaking, deviation in the adjustment process, and every set of adjusting unit is independently arranged, can adjust respectively according to the need of different position of test grinding block, can accurately control each support point position of test grinding block, realizes the effective adjustment to the measurement error.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a blade root broach test block adjuster. Background Technology

[0002] In the production process of broaches, the adjustment accuracy of the tooth profile grinding test block and the accuracy of tooth profile measurement have become key factors restricting the improvement of product quality. When using a Mitutoyo profiler to measure the tooth profile, the problem of the tooth profile not being perpendicular to the workpiece end face frequently occurs, resulting in inaccurate measurement data and distorted profile curves. This seriously affects the judgment of broach tooth quality and the optimization of subsequent processing technology, hindering the gas turbine manufacturing industry from developing towards higher precision.

[0003] Regarding the adjustment of the tooth profile test grinding block, the existing technology mainly involves adjusting the tooth profile test grinding block before tooth profile grinding and adjustment. Specifically, the two ends of the test grinding block are pressed together with stop blocks and clamped from the side with clamping claws. When the tooth profile grinding result conforms to the broach theoretical profile, it is determined whether the grinding wheel profile meets the grinding requirements. However, this method can only make limited adjustments to the side position error of the test grinding block, and the adjustment accuracy is limited. Furthermore, it cannot adjust the error of the two ends, making it difficult to guarantee the installation accuracy of the test grinding block. At the same time, in the tooth profile measurement stage, the existing operation process lacks an effective means to adjust the perpendicular relationship between the tooth profile and the workpiece end face. Operators usually place the workpiece directly on the measuring table for scanning measurement, which cannot avoid measurement errors caused by the non-perpendicularity of the two.

[0004] In view of this, the inventors specifically designed a leaf root broach test block adjuster, which led to this invention. Utility Model Content

[0005] To solve the above problems, the technical solution of this utility model is as follows: A blade root broach test block adjuster includes a base with at least two guide channels penetrating the base. At least two sets of adjustment units are provided on the base along the height direction. Each set of adjustment units includes an adjustment screw and a piston rod. The adjustment screw is installed in the guide channel by threaded engagement. The piston rod is located in the guide channel, with one end of the piston rod contacting the end of the adjustment screw and the other end used to push the end face of the test block. The guide channel constrains the adjustment screw and the piston rod to move linearly along its axial direction.

[0006] Preferably, the guide channel includes a connected threaded channel and a guide pipe, the adjusting screw is located inside the threaded channel, and the piston rod is located inside the guide pipe.

[0007] Preferably, the piston rod is clearance-fitted with the inner hole of the guide pipe, and the clearance is ≤0.01mm.

[0008] Preferably, a knob is mounted on the end of the adjusting screw away from the piston rod.

[0009] Preferably, the knob surface is provided with a scale ring, and the base surface is provided with reading marks corresponding to the scale ring.

[0010] Preferably, the substrate is provided with detachable blocks, and the substrate can be fitted with blocks of different thicknesses to accommodate test grinding blocks of different heights.

[0011] Preferably, it also includes a dial indicator that works in conjunction with the adjustment unit.

[0012] The technical solution provided by this utility model has the following beneficial effects: This invention features at least two sets of adjustment units along the height of the substrate. These units can be installed separately according to the needs of different positions on the test grinding block, enabling error adjustment of the side and end faces of the test grinding block. Simultaneously, the adjustment structure, through the coordinated operation of the adjusting screw, piston rod, and guide channel, allows for support and adjustment of the test grinding block from multiple points, resulting in more uniform force distribution and precise, flexible adjustment of the side and end face positions. Furthermore, during tooth profile measurement, the guide channel constrains the adjusting screw and piston rod, achieving high-precision linear motion adjustment and significantly reducing errors such as jitter and offset during adjustment. Each adjustment unit is independently set and can be adjusted separately according to the needs of different positions on the test grinding block, enabling precise control of the positions of each support point and effective adjustment of measurement errors. Attached Figure Description

[0013] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0014] in: Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the adjustment unit in this utility model; Figure 3 This is a schematic diagram of the adjustment of the test grinding block of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the adjustment of the test grinding block of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the adjustment of the test grinding block of this utility model. Figure 3 .

[0015] Label Explanation: 1. Base; 2. Adjustment unit; 3. Adjustment screw; 4. Piston rod; 5. Guide channel; 6. Threaded channel; 7. Guide pipe; 8. Knob; 9. Stop block; 10. Test grinding block; 11. Dial indicator; 12. Through magnet. Detailed Implementation

[0016] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] Please see Figures 1 to 5 This is a leaf root broach test block adjuster, which is the preferred embodiment of the present invention. It includes a base 1, on which at least two sets of adjusting units 2 and a guide channel 5 for installing the adjusting units 2 are provided along the height direction. The guide channel 5 penetrates the base 1. In this embodiment, two sets of adjusting units 2 are provided. Each adjusting unit 2 includes an adjusting screw 3 and a piston rod 4. The guide channel 5 penetrates the base 1. The adjusting screw 3 is installed in the guide channel 5 by threaded engagement. The piston rod 4 is located in the guide channel 5, with one end of the piston rod 4 contacting the end of the adjusting screw 3, and the other end used for pushing... The end face of the test grinding block 10 is pushed, and the guide channel 5 constrains the adjusting screw 3 and the piston rod 4 to move linearly along its axial direction. The base 1 serves as the basic support structure of the entire adjuster and is made of high-strength and high-stability metal material. In this embodiment, high-quality alloy steel is used to ensure that it will not deform during the adjustment process and affect the adjustment accuracy. The end of the piston rod 4 is designed to match the end face of the test grinding block 10, usually a plane or a curved surface with a certain curvature, to ensure that force can be applied evenly when pressing the end face of the test grinding block 10, and to avoid causing local damage or deformation to the test grinding block 10. The piston rod 4 is made of high-strength, wear-resistant materials, such as high-quality alloy steel, to ensure good performance and accuracy during frequent adjustment operations. At least two sets of adjustment units 2 are set on the base 1 along the height direction, which can support and adjust the test grinding block 10 from multiple points, making the force more uniform and effectively avoiding instability such as tilting of the test grinding block 10. This ensures that the test grinding block 10 is in the ideal position, improving measurement accuracy and reliability. The adjustment screw 3 and the piston rod 4 cooperate to push the end face of the test grinding block 10. This mechanical adjustment method is stable and reliable, and is not prone to slippage or failure, ensuring the effectiveness of the adjustment operation.

[0018] Please refer to Figure 1The guide channel 5 includes a connected threaded channel 6 and a guide pipe 7. The adjusting screw 3 is located inside the threaded channel 6, and the piston rod 4 is located inside the guide pipe 7. The adjusting screw 3 is a key component for achieving precise adjustment of the test grinding block 10. It is connected to the base 1 through a high-precision threaded engagement. When the operator rotates the adjusting screw 3, its threaded structure converts the rotational motion into linear motion, thereby pushing the connected piston rod 4 to move. The threaded channel 6 provides a precise threaded engagement space for the adjusting screw 3, ensuring that the adjusting screw 3 can move stably along the axial direction when rotating, thus achieving precise adjustment. The guide pipe 7 provides a guide path for the linear motion of the piston rod 4, ensuring that the piston rod 4 can smoothly convert the motion of the adjusting screw 3 into a pushing force on the end face of the test grinding block 10.

[0019] Please refer to Figure 2 The piston rod 4 is fitted with the inner hole of the guide pipe 7 with a clearance of ≤0.01mm. This tight fit significantly reduces the shaking and vibration of the piston rod 4 during linear motion. This close fit ensures a more precise trajectory of the piston rod 4 when pushing the end face of the test grinding block 10, thereby improving the accuracy of the entire regulator in adjusting the position of the test grinding block 10 and meeting the requirements of high-precision measurement or processing. In measurement scenarios, when the piston rod 4 is tightly fitted with the inner hole of the guide pipe 7, the small displacement of the piston rod 4 can more accurately reflect the rotation of the adjusting screw 3. This precise displacement transmission reduces measurement errors caused by excessive clearance between the piston rod 4 and the guide pipe 7, making the measurement results more accurate and reliable. The smaller fit clearance reduces the relative movement and friction between the piston rod 4 and the inner hole of the guide pipe 7. Under normal working conditions, the tight fit helps reduce wear caused by mutual collision and friction between components, thereby extending the service life of the piston rod 4 and the guide pipe 7, and reducing equipment maintenance costs and replacement frequency.

[0020] For details, please refer to Figure 1 A knob 8 is installed at the end of the adjusting screw 3 furthest from the piston rod 4, making the operation of the adjusting screw 3 more convenient. The operator can easily control the rotation of the adjusting screw 3 by manually rotating the knob 8, thereby advancing or retracting the piston rod 4 without the need for other complex tools. Because the knob 8 provides better torque control, the operator can more precisely control the rotation of the adjusting screw 3, thus achieving precise control of the piston rod 4's displacement. This precise control helps improve the accuracy of the position adjustment of the test grinding block 10.

[0021] For details, please refer to Figure 1The knob 8 has a graduated ring on its surface, and the base 1 has corresponding reading marks on its surface. The combination of the graduated ring and the reading marks allows the operator to intuitively read the rotation amount of the adjusting screw 3. Each scale can represent a certain rotation angle or displacement. By observing the alignment of the graduated ring and the reading marks, the operator can quickly determine the rotation position of the adjusting screw 3, thereby achieving an accurate reading of the position adjustment amount of the test grinding block 10.

[0022] Specifically, the base 1 is provided with a detachable stop 9, which is used to adapt to test grinding blocks 10 of different heights or widths, such as... Figure 3 If the height is appropriate, there is no need for stop block 9 to raise or limit the height; such as Figure 4 When the test grinding block 10 is relatively high, the adjuster is blocked from both sides of the test grinding block 10, and the bottom surface of the adjuster is in close contact with the bottom surface of the stop block 9; for example Figure 5 When the test grinding block 10 is high and wide, the adjuster is blocked from one side of the test grinding block 10, and the other side is blocked by the stop block 9.

[0023] The working principle of this utility model is as follows: First, the test grinding block 10 is ground. The perpendicularity of the bottom surface of the test grinding block 10 to its two sides must reach 0.003mm, and the parallelism of its two end faces must reach 0.002mm. Next, the qualified test grinding block 10 is installed on the through magnet 12, which allows the machine tool's magnetism to pass through. The test grinding block is slightly attracted, and the straightness of the through magnet 12 along the X direction is 0.005 / 100mm, ensuring high precision in the initial installation of the test grinding block 10. The perpendicularity of the bottom surface of the test grinding block 10 to its two sides must reach 0.003mm, and the parallelism of its two end faces must reach 0.002mm. After installation, the end faces of the adjusters are pressed against the two end faces of the test grinding block 10, fitting as tightly as possible to ensure stable action of the adjusters on the test grinding block 10. One set of adjusters serves as the adjustment reference. Then, a dial indicator 11 is installed on a suitable... Position the dial indicator 11 so that its probe hits the end face of the test grinding block 10. The operator slowly moves the dial indicator 11 along the Y and Z directions to monitor the flatness and perpendicularity of the end face of the test grinding block 10 in real time. Then, based on the reading of the dial indicator 11, rotate the adjusting screw 3. As the adjusting screw 3 rotates, the two moving piston rods 4 will move linearly under its drive, thereby pressing against the end face of the test grinding block 10 and causing it to rotate slightly. During the adjustment process, the operator must closely monitor the changes of the dial indicator 11. When the dial indicator 11 shows a deviation exceeding 0.002m... At time m, fine-tune the adjusting screw 3 to change the clamping force and position of the piston rod 4 on the test grinding block 10. Since the piston rod 4 moves linearly to push the test grinding block 10, the tilt of the end face of the test grinding block 10 can be gradually corrected during the continuous fine-tuning process, so that its perpendicularity to the X-axis of the worktable meets the requirements. For example, if the dial indicator 11 shows that the upper end of the test grinding block 10 is far away from the X-axis (i.e., the upper end is more deviated from the vertical position than the lower end), then turn the upper adjusting screw 3 clockwise to push the piston rod 4 closer to the upper end of the test grinding block 10 forward more, pushing the upper end of the test grinding block 10 towards the X-axis. The X-axis is moved closer until the dial indicator 11 shows a reading within 0.002mm. During the up-and-down movement of the dial indicator 11, the up-and-down adjusting screws 3 are finely adjusted according to the reading on the dial indicator 11 until the perpendicularity between the end face of the test grinding block 10 and the X-axis of the worktable is within 0.002mm. Only when this accuracy requirement is met can the perpendicularity between the tooth profile ground on the test grinding block 10 and the end face of the test grinding block 10 be ensured. When inspected by the contour scanner, its tooth profile accuracy is closest to the theoretical tooth profile, thus meeting the high-precision machining requirements of the blade root broach.

[0024] In summary, this utility model, through the coordinated adjustment structure of adjusting screw 3, piston rod 4, and guide channel 5, achieves precise and flexible adjustment of the side and end faces of the test grinding block 10, ensuring that the tooth profile is perpendicular to the workpiece end face. Simultaneously, at least two sets of adjustment units 2 are arranged along the height direction on the base 1, enabling support and adjustment of the test grinding block 10 from multiple points, resulting in more uniform force distribution and effectively preventing instability such as tilting of the test grinding block 10. This ensures the broach test grinding block 10 is in an ideal position, improving measurement accuracy and reliability. The guide channel 5 constrains the adjusting screw 3 and piston rod 4, achieving high-precision linear motion adjustment, greatly reducing errors such as jitter and offset during the adjustment process, meeting the needs of precision measurement scenarios. Furthermore, each set of adjustment units 2 is independently set and can be adjusted separately according to the needs of different positions of the test grinding block 10, making operation flexible and convenient. It can precisely control the position of each support point of the test grinding block 10 to adapt to test grinding blocks 10 of different shapes and sizes.

[0025] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A blade root broach test block adjuster characterized by, The system includes a base (1), on which at least two guide channels (5) are provided through the base (1). At least two sets of adjustment units (2) are provided on the base (1) along the height direction. Each set of adjustment units (2) includes an adjustment screw (3) and a piston rod (4). The adjustment screw (3) is installed in the guide channel (5) by threaded connection. The piston rod (4) is located in the guide channel (5). One end of the piston rod (4) contacts the end of the adjustment screw (3), and the other end is used to push the end face of the test grinding block (10). The guide channel (5) constrains the adjustment screw (3) and the piston rod (4) to move linearly along its axial direction.

2. The blade root broach block adjuster of claim 1, wherein, The guide channel (5) includes a connected threaded channel (6) and a guide pipe (7). The adjusting screw (3) is located inside the threaded channel (6), and the piston rod (4) is located inside the guide pipe (7).

3. The blade root broach block adjuster of claim 1, wherein, The piston rod (4) is fitted with the inner hole of the guide pipe (7) with a clearance of ≤0.01mm.

4. The blade root broach block adjuster of claim 1, wherein, A knob (8) is installed at the end of the adjusting screw (3) away from the piston rod (4).

5. The blade root broach block adjuster of claim 4, wherein, The knob (8) has a scale ring on its surface, and the base (1) has reading marks corresponding to the scale ring on its surface.

6. The blade root broach block adjuster of claim 1, wherein, The substrate (1) is provided with a detachable stop (9), and the substrate (1) is adapted to test grinding blocks (10) of different heights by installing stop (9) of different thicknesses.

7. The blade root broach block adjuster of claim 1, wherein, It also includes a dial gauge (11) that works in conjunction with the adjustment unit (2).

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