CN204854681U - A general clamping device for three -coordinates measuring blade - Google Patents

Abstract

A general clamping device for three-coordinate measuring blades relates to a clamping device. The utility model solves the problems of poor stability of the blade and poor consistency of the measurement results when the blade is measured by the conventional three-coordinate measuring instrument. The fixed block, blade root wheel groove profile line positioning block, pressing block, linkage block and transmission block of the utility model are arranged in sequence along the length direction of the first slide table, and the upper end of the side opposite to the pressing block of the fixing block is provided with a step, The pressing block is set on the first sliding table and is slidingly connected with the first sliding table, and the linkage block is fixedly connected with the pressing block; the transmission block is provided with a central screw hole, and one end of the screw passes through the central screw hole and is fixedly connected with the linkage block. The blade root of the existing blade is vertically set in the blade root groove, the set screw is set in the screw hole and its upper end is against the bottom of the blade root, and the blade root groove shape line positioning block is set on the step of the fixing block It is clamped and fixed by a fixed block and a pressure block. The utility model is used for clamping and positioning the blades when measuring the blades with three coordinates.

Description

A Universal Clamping Device for Three-coordinate Measuring Blade

technical field

The utility model relates to a clamping device, in particular to a universal clamping device for three-coordinate measuring blades.

Background technique

The three-coordinate measuring instrument is an instrument used to measure the size of each processing surface of the blade, such as the size of the airway shape line, the blade crown shape line, the rib boss, the intermediate body and the blade crown arc surface of the blade, but each time When measuring the blade, first find the reference plane as the initial reference, that is, determine the reference zero position, and then measure the part to be measured. For the same batch of blades, since it is difficult to ensure that the reference zero position of each blade is exactly the same, it is also difficult to ensure the consistency of the measurement results of the blades, which will affect the processing quality of the blades. There is no good fixing device on the measuring instrument, so the stability of the blade is poor during the measurement process, which affects the accuracy of the measurement result. At the same time, because the reference zero position must be determined before the measurement of each blade, the measurement workload is greatly increased. Time-consuming.

Utility model content

The utility model provides a universal clamping device for three-coordinate measuring blades in order to solve the problems of poor stability of the blades and poor consistency of measurement results when the blades are measured by a three-coordinate measuring instrument.

The technical scheme adopted by the utility model in order to solve the above-mentioned technical problems is: the utility model includes a base, a fixed block, a blade root wheel groove profile line positioning block, a set screw, a pressing block, a linkage block, a transmission block, a screw rod, a transition block, Connecting rod and handle; the base includes the first slide table and the bottom plate, the first slide table and the bottom plate are set up and down, the first slide table is a T-shaped slide table, fixed block, blade root groove line positioning block, pressing block, linkage block The fixed block and the transmission block are arranged in sequence along the length direction of the first sliding table. Both the fixed block and the transmission block are fixedly connected to the upper surface of the first sliding table. There is a T-shaped groove, and the pressing block is set on the first sliding table through the T-shaped groove and is slidably connected with the first sliding table. The linkage block is fixedly connected with the pressing block; The central axis of the screw hole is parallel to the length direction of the first sliding table. One end of the screw rod passes through the central screw hole and is fixed to the linkage block. The other end of the screw rod is fixed to the transition block. The connecting rod and the screw rod are vertically arranged. The lower end is fixedly connected with the transition block, and the upper end of the connecting rod is vertically fixedly connected with the handle; the positioning block of the blade root groove shape line is a cuboid structure, and the upper end of the blade root groove shape line positioning block is opened with a blade root groove along its width direction. The bottom of the positioning block of the blade root groove profile is provided with a screw hole communicating with the blade root groove. The blade root of the existing blade is vertically set in the blade root groove. The central longitudinal section of the line positioning block coincides, the groove shape line of the blade root groove is adapted to the blade root shape line of the blade root, the set screw is set in the screw hole and its upper end is against the bottom of the blade root, and the blade root The wheel groove profile line positioning block is arranged on the step of the fixed block and is clamped and fixed by the fixed block and the pressure block.

The beneficial effects of the utility model are:

1. The utility model first uses the blade root groove profile positioning block and the set screw to accurately position the blade root of the blade, and then uses the fixing block and the pressure block to clamp and fix the blade root groove profile positioning block to realize It ensures the firm clamping and positioning of the blade, ensures the stability of the blade during the measurement process on the three-coordinate measuring instrument, and thus ensures the accuracy of the measurement results;

2. In the utility model, the blade root of the blade is vertically set in the blade root groove, and the central longitudinal section of the blade root coincides with the central longitudinal section of the blade root groove profile line positioning block. Such positioning can ensure that each measured The relative position of the blade and the positioning block of the blade root wheel groove line is consistent, so that the measurement results of the same batch of blades can be guaranteed to be consistent, so that the positioning is not only accurate, but also saves time and effort;

3. The utility model sets the blade root of the blade vertically in the blade root wheel groove, so that the blade is in an upright state during the measurement process, which not only facilitates measurement, but also simulates the state of the blade when it is working, ensuring the measurement state of the blade Consistent with the state of use;

4. In the utility model, the blade root is first positioned on the positioning block of the blade root groove profile through the set screw, and then the handle is rotated to make the pressure block slide under the push of the screw and clamp the blade root groove profile positioning block, that is It can be measured, and after the measurement is completed, turn the handle to remove the positioning block of the blade root wheel groove line and the blade on it. The loading and unloading of the blade is particularly convenient and fast;

5. When the utility model is used for clamping and positioning of different blades, it is only necessary to replace the corresponding blade root groove profile positioning block according to the difference of the blade root profiles, so that the utility model has a good The versatility of the system improves the detection efficiency of the three-coordinate measurement blade.

Description of drawings

Fig. 1 is a front view of the utility model; Fig. 2 is a top view of Fig. 1; Fig. 3 is a cross-sectional view along the Q-Q line in Fig. 2; Fig. 4 is a front view of a blade root wheel groove profile line positioning block; Fig. 5 is Fig. 4 Figure 6 is a schematic diagram of the connection relationship between the blade root, the blade root groove line positioning block and the block gauge; Figure 7 is a top view of the blade.

Detailed ways

Specific Embodiment 1: This embodiment will be described with reference to FIGS. 1 to 7. A general clamping device for three-coordinate measurement of blades in this embodiment includes a base 1, a fixing block 2, and a blade root wheel groove profile line positioning block 13. , set screw 14, pressure block 5, linkage block 6, transmission block 9, screw rod 10, transition block 15, connecting rod 11 and handle 12; base 1 includes the first slide table 1-1 and base plate 1-2, the first The slide table 1-1 and the bottom plate 1-2 are set up and down, the first slide table 1-1 is a T-shaped slide table, the fixed block 2, the positioning block 13 of the blade root groove profile line, the pressing block 5, the linkage block 6 and the transmission block 9 are arranged in sequence along the length direction of the first sliding table 1-1, the fixed block 2 and the transmission block 9 are fixedly connected to the upper surface of the first sliding table 1-1, and the upper end of the side of the fixed block 2 opposite to the pressure block 5 There is a step 2-1, the bottom of the pressing block 5 is provided with a T-shaped groove, and the pressing block 5 is set on the first sliding table 1-1 through the T-shaped groove and is slidably connected with the first sliding table 1-1 , the linkage block 6 is fixedly connected with the pressure block 5; the transmission block 9 is provided with a central screw hole 9-1, the central axis of the central screw hole 9-1 is parallel to the length direction of the first sliding table 1-1, and one end of the screw rod 10 After passing through the central screw hole 9-1, it is fixedly connected with the linkage block 6, the other end of the screw rod 10 is fixedly connected with the transition block 15, the connecting rod 11 is vertically arranged with the screw rod 10, the lower end of the connecting rod 11 is fixedly connected with the transition block 15, and connected The upper end of the rod 11 is vertically fixed to the handle 12; the blade root wheel groove profile line positioning block 13 is a cuboid structure, and the upper end of the blade root wheel groove profile line positioning block 13 is provided with a blade root wheel groove 13-1 along its width direction, and the blade root wheel groove profile line positioning block 13 The bottom of the root wheel groove profile line positioning block 13 is provided with the screw hole 13-2 that communicates with the blade root wheel groove 13-1, and the blade root 18 of the existing blade 19 is vertically sleeved in the blade root wheel groove 13-1. The central longitudinal section F of the root 18 coincides with the central longitudinal section K of the blade root groove profile positioning block 13, and the groove profile 13-1-1 of the blade root groove 13-1 and the blade root profile line of the blade root 18 18-1, the set screw 14 is set in the screw hole 13-2 and its upper end leans against the bottom of the blade root 18, and the blade root wheel groove line positioning block 13 is set on the step 2-1 of the fixing block 2 And clamped and fixed by fixed block 2 and briquetting block 5.

Specific Embodiment 2: This embodiment is described in conjunction with FIG. 3 . The base 1 of this embodiment also includes a second sliding table 1-3, and the first sliding table 1-1, the second sliding table 1-3 and the bottom plate 1-2 are composed of Arranged sequentially from top to bottom, the second slide table 1-3 is a T-shaped slide table, and the length directions of the second slide table 1-3 and the first slide table 1-1 are parallel to each other. Such a design can prevent the second slide table 1-3 from being available when the first slide table 1-1 cannot be used, so as to ensure the availability of the device. Other components and connections are the same as those in the first embodiment.

Specific Embodiment 3: This embodiment is described with reference to FIG. 3 . The width of the first sliding platform 1 - 1 in this embodiment is smaller than the width of the second sliding platform 1 - 3 . When the measured blade root is larger, the larger pressing block 5 can be replaced to clamp the blade root wheel groove line positioning block 13, and the larger pressing block 5 can be placed on the wider second slide table 1-3 Slide for better clamping force. Other components and connections are the same as those in the second embodiment.

Specific Embodiment 4: This embodiment is described in conjunction with Fig. 1, Fig. 3 and Fig. 4. The general clamping device for three-coordinate measurement of blades in this embodiment also includes a copper spacer 16, and the copper spacer 16 is set Between the set screw 14 and the blade root 18, the copper spacer 16 is fixedly connected with the set screw 14 and made into one body. First melt copper and pour it on the end of the set screw 14 to make it cool and solidify, and then screw the set screw 14 into the positioning block 13 of the groove profile of the blade root. Because the copper is soft, it can prevent direct use of the set screw. The blade root is damaged when the screw 14 is against the blade root. Other compositions and connections are the same as those in the first, second or third embodiment.

Embodiment 5: This embodiment is described with reference to FIG. 1 , FIG. 3 and FIG. 4 , and the thickness of the copper spacer 16 in this embodiment is 2 mm. Meet design and use requirements. Other compositions and connections are the same as those in Embodiment 4.

Embodiment 6: This embodiment is described with reference to FIG. 6 . The width A of the blade root groove line positioning block 13 in this embodiment is smaller than the width B of the blade root 18 . Put the blade root 18 vertically in the blade root groove line positioning block 13, in order to ensure that the central longitudinal section F of the blade root 18 coincides with the central longitudinal section K of the blade root groove line positioning block 13, a rectangular The block gauge 17 calibrates the relative position of the blade root and the blade root wheel groove profile line positioning block 13, the width of the block gauge is C, wherein C=(B-A)/2, and one end of the block gauge 17 leans against the blade root wheel groove One side of the molding line positioning block 13, adjust the blade root 18 so that the end surface M on one side of the blade root 18 is flush with the end surface N on one side of the block gauge 17, and then use the set screw 14 to fix the adjusted blade root 18 It can be fixed in the positioning block 13 of the groove profile of the blade root. The other components and connections are the same as those in Embodiment 1, 2, 3 or 5.

Specific Embodiment 7: This embodiment is described in conjunction with FIG. 2. A general clamping device for three-coordinate measurement of blades in this embodiment also includes two first screws 3 and two cylindrical pins 4. The fixing block 2 passes through two A first screw 3 and two cylindrical pins 4 are affixed to the upper surface of the first sliding table 1-1. Meet design and use requirements. The other components and connections are the same as those in Embodiment 1, 2, 3 or 5.

Embodiment 8: This embodiment is described in conjunction with FIG. 3 . A general clamping device for three-coordinate measurement of blades in this embodiment also includes two second screws 8 , and the transmission block 9 connects with the two second screws 8 . The upper surface of the first slide table 1-1 is affixed. Meet design and use requirements. The other components and connections are the same as those in Embodiment 1, 2, 3 or 5.

Ninth specific embodiment: This embodiment is described in conjunction with FIG. 2 . A general clamping device for three-coordinate measurement of blades in this embodiment also includes two bolts 7, and the linkage block 6 is fixed to the pressing block 5 through the two bolts 7. catch. Meet design and use requirements. The other components and connections are the same as those in Embodiment 1, 2, 3 or 5.

working principle:

A universal clamping device for three-coordinate measuring blades of the present invention, first vertically set the blade root 18 of the blade 19 in the blade root wheel groove profile line positioning block 13, and use the block gauge 17 to align the blade root 18 Calibrate the relative position of the blade root wheel groove line positioning block 13. After calibration, use the set screw 14 to position the blade root 18 in the blade root wheel groove line positioning block 13, and align the blade 19 with the blade root wheel groove line positioning block 13. The positioning block 13 is placed together on the steps of the fixed block 2, and then the handle 12 is turned to make the screw 10 push the pressing block 5, and the positioning block 13 of the blade root groove profile is clamped between the fixing block 2 and the pressing block 5, and finally Fix the utility model together with the blades on the workbench of the three-coordinate measuring instrument to measure the size of the blades.

Claims (9)

1. A universal clamping device for three-coordinate measurement of blades, characterized in that it includes a base (1), a fixed block (2), a blade root groove profile positioning block (13), a set screw (14 ), briquetting block (5), linkage block (6), transmission block (9), screw rod (10), transition block (15), connecting rod (11) and handle (12); the base (1) includes the first slide Table (1-1) and bottom plate (1-2), the first sliding table (1-1) and bottom plate (1-2) are arranged up and down, the first sliding table (1-1) is a T-shaped sliding table, and the fixed block (2), the positioning block (13), the pressure block (5), the linkage block (6) and the transmission block (9) are arranged in sequence along the length direction of the first sliding table (1-1), and fixed The block (2) and the transmission block (9) are all affixed to the upper surface of the first slide table (1-1), and the upper end of the fixed block (2) is provided with a step (2- 1), the bottom of the pressing block (5) is provided with a T-shaped groove, and the pressing block (5) is set on the first sliding table (1-1) through the T-shaped groove and is connected with the first sliding table (1-1) 1) Sliding connection, the linkage block (6) is fixedly connected with the pressure block (5); the transmission block (9) is provided with a central screw hole (9-1), and the central axis of the central screw hole (9-1) is aligned with the first The length direction of the slide table (1-1) is parallel, and one end of the screw rod (10) passes through the central screw hole (9-1) and is fixedly connected with the linkage block (6), and the other end of the screw rod (10) is connected with the transition block (15 ) is affixed, the connecting rod (11) is vertically arranged with the screw rod (10), the lower end of the connecting rod (11) is affixed to the transition block (15), and the upper end of the connecting rod (11) is vertically affixed to the handle (12); The root wheel groove profile line positioning block (13) is a cuboid structure, and the upper end of the blade root wheel groove profile line positioning block (13) has a blade root wheel groove (13-1) along its width direction, and the blade root wheel groove profile line positioning The bottom of block (13) is provided with the screw hole (13-2) that communicates with blade root wheel groove (13-1), and the blade root (18) of existing blade (19) is vertically set in blade root wheel groove (13-1). -1), the central longitudinal section (F) of the blade root (18) coincides with the central longitudinal section (K) of the blade root groove profile line positioning block (13), the groove of the blade root groove (13-1) The molded line (13-1-1) is adapted to the blade root molded line (18-1) of the blade root (18), and the set screw (14) is arranged in the screw hole (13-2) and its upper end leans against At the bottom of the blade root (18), the blade root groove profile positioning block (13) is set on the step (2-1) of the fixed block (2) and fixed by the fixed block (2) and the pressing block (5) . 2. A universal clamping device for three-coordinate measurement blades according to claim 1, characterized in that: the base (1) also includes a second slide (1-3), the first slide (1-3) 1), the second sliding table (1-3) and the bottom plate (1-2) are arranged in sequence from top to bottom, the second sliding table (1-3) is a T-shaped sliding table, and the second sliding table (1-3) and the length direction of the first slide table (1-1) are parallel to each other. 3. A universal clamping device for three-coordinate measurement of blades according to claim 2, characterized in that: the width of the first sliding table (1-1) is smaller than the width of the second sliding table (1-3) . 4. A universal clamping device for three-coordinate measuring blades according to claim 1, 2 or 3, characterized in that: said universal clamping device for three-coordinate measuring blades also includes a copper pad Block (16), copper spacer (16) is arranged between set screw (14) and blade root (18), copper spacer (16) and set screw (14) are affixed and made into one. 5. A universal clamping device for three-coordinate measuring blades according to claim 4, characterized in that: the thickness of the copper spacer (16) is 2mm. 6. A universal clamping device for three-coordinate measurement of blades according to claim 1, 2, 3 or 5, characterized in that: the width (A) of the positioning block (13) of the blade root groove profile is less than The width (B) of the blade root (18). 7. A universal clamping device for three-coordinate measuring blades according to claim 1, 2, 3 or 5, characterized in that: said universal clamping device for three-coordinate measuring blades also includes Two first screws (3) and two straight pins (4), the fixed block (2) connects with the first sliding table (1-1) through the two first screws (3) and two straight pins (4) Fixed on the upper surface. 8. A universal clamping device for three-coordinate measuring blades according to claim 1, 2, 3 or 5, characterized in that: said universal clamping device for three-coordinate measuring blades also includes Two second screws (8), the transmission block (9) is fixedly connected with the upper surface of the first slide table (1-1) through the two second screws (8). 9. A universal clamping device for three-coordinate measuring blades according to claim 1, 2, 3 or 5, characterized in that: said universal clamping device for three-coordinate measuring blades also includes Two bolts (7), the linkage block (6) is fixedly connected with the briquetting block (5) by two bolts (7).