Three-coordinate measuring clamp for blade with tenon on arc bottom surface

Abstract

The invention discloses a three-coordinate measuring clamp for a tenon blade with an arc bottom surface, relates to the technical field of angle measurement of the tenon blade, and solves the problem that certain time needs to be consumed for adjusting or correcting the position and angle of a measuring instrument or equipment in the process of moving and measuring the tenon blade each time. And the measurement efficiency is low. The arc bottom surface tenon blade three-coordinate measurement clamp comprises an L-shaped measurement plate, an integrated telescopic clamping mechanism and an optical angle measurement assembly, multiple sets of installation accessories are installed on the outer side of the L-shaped measurement plate, and the integrated telescopic clamping mechanism extending to the outer side is installed in the L-shaped measurement plate. According to the invention, the clamped and fixed tenon blade can be automatically moved to the side surfaces of the side goniometer and the front goniometer and is supported by the tenon positioning block, so that the efficiency and stability of angle measurement of the tenon blade through the side goniometer and the front goniometer each time are improved.

Description

Technical Field

[0001] The invention relates to the technical field of tenon blade angle measurement, and in particular to a three-coordinate measurement fixture for a tenon blade with an arc bottom surface. Background Art

[0002] The tenon blade is a key component of an aircraft engine that generates thrust through gas. During assembly, it is mainly installed inside the engine through the tenon part set at the bottom. Most tenon blades are generally set with a circular arc bottom surface, which effectively increases the thrust generated when rotating. After the tenon blade is produced and processed, it is necessary to measure the angle of the circular arc bottom surface (irregular surface and contour) of the tenon blade, and the corresponding fixture is needed at this time.

[0003] The existing Chinese patent application with publication number CN110319801A discloses a three-coordinate measuring fixture for a circular arc bottom tenon blade, comprising a base, a first positioning block, a second positioning block and a push rod assembly; an eccentric shaft rotatably connected to the base is provided inside the base, and the eccentric shaft comprises an eccentric cylinder; the first positioning block and the second positioning block are both arranged on the top of the base, and the first positioning block and the second positioning block are spaced and arranged oppositely; the tops of the first positioning block and the second positioning block are respectively provided with positioning grooves that are consistent with the angle of the tenon pressure surface, and the bottoms of the positioning grooves are provided with sliding holes; the push rod assembly comprises a support rod, the support rod is provided with a long hole, and the long hole Cooperating with the eccentric cylinder, a first push pin and a second push pin are provided on the top of the support rod, and the first push pin and the second push pin are respectively slidably cooperated with the sliding hole; the invention can place the arc bottom surface tenon of the blade into the positioning groove for fixation, and the arc bottom surface of the tenon contacts with the push rod assembly. Through the top pressure of the push rod assembly, the pressure surface of the tenon can be tightly fitted with the side wall of the positioning groove, so that the tenon is fixed with the pressure surface as a reference, and the push rod assembly and the arc bottom surface of the tenon are contacted by point-to-surface and squeezed and fixed, avoiding the use of the arc bottom surface for positioning, improving the positioning accuracy, thereby improving the measurement accuracy, and there will be no problem of distorted measurement results.

[0004] However, the measuring fixture has the following defects when used:

[0005] 1. In the process of clamping and fixing the tenon blades, the existing measuring fixtures generally complete the fixing operation by operating the driving parts (motor, etc.). After the fixing is completed, the equipment and instruments for angle measurement need to be moved to the side of the fixed tenon blade to perform corresponding three-coordinate measurement and other operations. At this time, in order to ensure the accuracy of the measurement results during each movement and measurement, a certain amount of time is required to adjust or correct the position and angle of the measuring instrument or equipment, resulting in low efficiency when the factory measures large batches of tenon blades;

[0006] 2. When the existing measuring fixture clamps the tenon blade to ensure the accuracy of the subsequent measurement data, it is generally fixed by squeezing the tenon blade to ensure that there will be no deviation or shaking during measurement. However, in the process of measuring the angle of the tenon blade, it is difficult to directly shoot and record its complete three-dimensional surface (front and left or right side), which affects the accuracy of the measurement results. Summary of the invention

[0007] The purpose of the present invention is to provide a three-coordinate measuring fixture for a blade with a circular arc bottom tenon, so as to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The present invention provides a three-coordinate measuring fixture for a circular arc bottom tenon blade, comprising an L-shaped measuring plate, an integrated telescopic clamping mechanism and an optical angle measuring component, wherein a plurality of mounting accessories are installed on the outer side of the L-shaped measuring plate, an integrated telescopic clamping mechanism extending to the outer side is installed inside the L-shaped measuring plate, and a tenon blade is clamped and fixed on the inner side of the integrated telescopic clamping mechanism.

[0010] An optical angle measuring component located on the side of the integrated telescopic clamping mechanism is installed on the outer side of the L-shaped measuring plate. The optical angle measuring component is arranged toward the tenon blade and performs angle measurement operation on the tenon blade.

[0011] Wherein, the integrated telescopic clamping mechanism comprises:

[0012] A screw conveying assembly, the screw conveying assembly is installed inside the L-shaped measuring plate, and a telescopic compensation assembly is installed on the top, the telescopic compensation assembly extends to the left and right sides of the tenon blade, and supports and fixes the tenon blade, and optical angle measurement assemblies are installed on the left and right sides of the screw conveying assembly; and

[0013] A lifting and conveying assembly is installed inside the L-shaped measuring plate and is connected by the screw conveying assembly. The lifting and conveying assembly and the screw conveying assembly are relatively vertically arranged, and a telescopic clamping assembly is installed on the side. The side of the telescopic clamping assembly is clamped and fixed with a tenon blade.

[0014] As a preferred embodiment of the present invention, the optical angle measuring assembly comprises:

[0015] A connecting arm, the connecting arm is installed on the outside of the L-shaped measuring plate by screws, and a side goniometer is installed on the top, the side goniometer is arranged toward one side of the tenon blade, and measures the angles of the tenon blade on the X and Z axes;

[0016] The mounting arm is mounted on the outside of the L-shaped measuring plate by screws and is located on the side of the connecting arm. A front goniometer is installed between the two groups of mounting arms. The front goniometer is arranged above the telescopic compensation assembly.

[0017] Wherein, the front angle meter is arranged toward the tenon blade, and measures the angles of the tenon blade on the Y and Z axes.

[0018] As a preferred embodiment of the present invention, the screw conveying assembly includes:

[0019] A horizontal frame, the horizontal frame is installed inside the L-shaped measuring plate, and two groups are provided, and a first motor is installed on the side of one group of the horizontal frames through a base;

[0020] A horizontal reciprocating screw rod, one end of which is connected to the output end of the first motor and is rotatably connected to the inside of the horizontal frame, and a side of the horizontal frame located outside the horizontal frame is connected to a transmission belt through a synchronous wheel,

[0021] Wherein, the transmission belt is movably connected to the side of the horizontal frame and the L-shaped measuring plate, and the inner side is also connected to another set of the horizontal reciprocating screw rods through a synchronous wheel;

[0022] A horizontal sliding block is connected to the outer side of the horizontal reciprocating screw rod through a ball bearing, and two groups of the horizontal sliding blocks are provided.

[0023] As a preferred solution of the present invention, the horizontal sliding block is slidably connected to the horizontal raised portion of the inner wall of the horizontal frame, and a telescopic compensation component is installed on the top of the horizontal sliding block by screws.

[0024] The bottoms of the two groups of horizontal reciprocating screw rods extend to the outside of the horizontal frame and are connected with a lifting and conveying assembly.

[0025] As a preferred embodiment of the present invention, the telescopic compensation component comprises:

[0026] A top plate, the top plate is mounted on the top of the horizontal sliding block by screws, and an L-shaped bracket is mounted on the top by screws, and a telescopic cylinder is mounted on the side of the L-shaped bracket;

[0027] A vertical slide, the vertical slide is installed on the top of the L-shaped bracket by screws, and a compensation block is slidably connected to the outer side of the top, and the compensation block is connected to the output end of the telescopic cylinder,

[0028] Wherein, a tenon positioning block is detachably mounted on the top of the compensation block, and the tenon positioning block supports and fixes the tenon blades on the side.

[0029] As a preferred solution of the present invention, an optical correction structure located on the sides of the two groups of vertical slides is also installed on the top of the top plate, and the optical correction structure includes a power module, a signal module and a displacement sensor.

[0030] Wherein, the power module and the signal module are both installed on the side of the vertical slide, and are both electrically connected to the displacement sensor through a wire, and the displacement sensor is installed between the two groups of vertical slides, and

[0031] Wherein, the measuring end of the displacement sensor is arranged toward one side of the compensation block and is arranged below the compensation block.

[0032] As a preferred embodiment of the present invention, the lifting and conveying assembly comprises:

[0033] A first gear, which is mounted on the other end of the horizontal reciprocating screw rod and is rotatably connected to the bottom of the horizontal frame, a second gear is meshedly connected to the side of the first gear, and the second gear is rotatably connected to the bottom of the vertical frame,

[0034] Wherein, the vertical frame is installed inside the L-shaped measuring plate, and two groups are provided;

[0035] A vertical reciprocating screw rod is rotatably connected to the inside of the vertical frame, and the bottom is connected to the second gear. The outer side of the vertical reciprocating screw rod is connected to a vertical sliding block through a ball bearing.

[0036] As a preferred solution of the present invention, the vertical sliding block is slidably connected to the vertical protrusion provided on the inner wall of the vertical frame, and a mounting column is installed on the side of the vertical sliding block by screws.

[0037] Wherein, telescopic clamping components are arranged on the side surfaces of the two groups of mounting columns.

[0038] As a preferred embodiment of the present invention, the telescopic clamping assembly comprises:

[0039] A lifting bracket is welded and fixed to the sides of the two groups of mounting columns, and a second motor is installed on one side, and a threaded rod is connected to the output end of the second motor, and the threaded rod is rotatably connected to the inner side of the lifting bracket.

[0040] The outer surface of the threaded rod is provided with two sets of thread grooves in opposite directions, and the inner central part is rotatably connected to the inner part of the central protrusion, and the central protrusion is installed at the center of the side of the lifting bracket;

[0041] A threaded telescopic block is threadedly connected to the outside of the threaded groove on the outer surface of the threaded rod and is slidably connected to the side of the lifting bracket. A downward pressing structure is installed on the side of the threaded telescopic block.

[0042] As a preferred embodiment of the present invention, the pressing structure comprises:

[0043] A top frame, the top frame is mounted on the top of the threaded telescopic block by screws, and a downward pressure cylinder is installed on the top, and the output end of the downward pressure cylinder is connected to a downward pressure block that passes through the top frame;

[0044] A support block is installed on the side of the threaded telescopic block, and a tenon blade is fixed between the pressing block and the support block.

[0045] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0046] 1. In the three-coordinate measuring fixture for the tenon blade with an arc bottom, when measuring the angle of the arc bottom surface (irregular surface and contour part) of the tenon blade, the tenon blade needs to be installed and fixed to ensure the accuracy of the data during subsequent measurements. At this time, the first motor can be operated to drive the horizontal reciprocating screw and the horizontal sliding block connected to its output end to operate, and the tenon positioning block installed on the top of the horizontal sliding block can be moved to the left and right sides of the tenon connection part at the bottom of the tenon blade to support and position the left and right sides of the tenon blade. At the same time, when the horizontal reciprocating screw rotates, it will synchronously drive the vertical reciprocating screw and the vertical sliding block connected by the first and second gears to operate, automatically moving the clamped and fixed (back part) tenon blade to the side of the side goniometer and the front goniometer and supporting it through the tenon positioning block, thereby improving the efficiency of each angle measurement of the tenon blade through the side goniometer and the front goniometer;

[0047] 2. In the three-coordinate measuring fixture of the tenon blade with an arc bottom, during the process of supporting and positioning the tenon connection part at the bottom of the tenon blade, the tenon positioning block serving as the support and positioning can be driven by the telescopic cylinder to move its output end compensation block telescopically, so as to automatically move to the tenon connection part at the bottom of the tenon blade and support both sides of the bottom of the tenon blade. At this time, the pressing block and the supporting block are used to press down and fix the back of the tenon connection part at the bottom of the tenon blade, so as to realize the operation of fixing the three points of the tenon blade, and ensure that when measuring the angle of the arc bottom part of the tenon blade, the tenon blade will not deviate or shake, thereby improving the accuracy of the measurement results. In addition, the movement of the tenon positioning block is monitored in real time by a displacement sensor, so as to realize the automated tenon blade support and positioning operation;

[0048] 3. In the three-coordinate measuring fixture of the tenon blade with a circular arc bottom, during the process of pressing down and fixing the back of the tenon connection part at the bottom of the tenon blade, the position of fixing the back of the tenon connection part at the bottom of the tenon blade is adjusted in real time by the second motor driving the threaded rod, thread groove and threaded telescopic block to operate, ensuring that in the process of pressing down and fixing each tenon blade, it is always located in the middle of the tenon connection part at the bottom of the tenon blade, which can effectively reduce the probability of displacement and shaking of the tenon blade during the descending measurement. At the same time, it can ensure that the subsequent tenon positioning block will not cause misalignment and collision or fail to support positioning when supporting the left and right sides of the tenon blade;

[0049] 4. In the three-coordinate measuring fixture for the tenon blade with arc bottom, when measuring the angle of the arc bottom of the tenon blade, two sets of side goniometers and one set of front goniometers can simultaneously shoot and measure the angles of the front (Y, Z axis) and the left and right sides (X, Z axis), and transmit them to the control panel through optical-electrical-optical transmission to form a three-dimensional graph and display its angle, length and other data, thereby realizing the automated tenon blade angle measurement operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding 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 improper limitations on the present invention.

[0051] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0053] Figure 2 It is a schematic structural diagram of the overall back side of the present invention;

[0054] Figure 3 It is a schematic diagram of the structure of the present invention as a whole viewed from above;

[0055] Figure 4 It is a schematic structural diagram of the overall side view of the present invention;

[0056] Figure 5 It is a schematic structural diagram of the overall main view of the present invention;

[0057] Figure 6It is a structural schematic diagram of the connection between the L-shaped measuring plate and the integrated telescopic clamping mechanism of the present invention;

[0058] Figure 7 It is a structural schematic diagram of the integrated telescopic clamping mechanism of the present invention;

[0059] Figure 8 It is a structural schematic diagram of the connection between the screw conveying assembly and the telescopic compensation assembly of the present invention;

[0060] Fig. 9 It is a structural schematic diagram of the telescopic compensation assembly of the present invention;

[0061] Fig.10 It is a schematic diagram of the structure of the explosion of the telescopic compensation assembly of the present invention;

[0062] Fig.11 It is a schematic structural diagram of the connection between the horizontal reciprocating screw rod and the vertical reciprocating screw rod of the present invention;

[0063] Fig.12 It is a structural schematic diagram of the connection between the lifting and conveying assembly and the telescopic clamping assembly of the present invention;

[0064] Fig.13 It is a structural schematic diagram of the telescopic clamping assembly of the present invention;

[0065] Fig.14 It is a structural schematic diagram of the connection between the threaded rod and the pressing structure of the present invention;

[0066] In the figure:

[0067] 10. L-shaped measuring plate; 101. Installation accessories; 20. Integrated telescopic clamping mechanism;

[0068] 30. Optical angle measuring assembly; 301. Connecting arm; 302. Side angle measuring instrument; 303. Mounting arm; 304. Front angle measuring instrument;

[0069] 40. Screw conveying assembly; 401. Horizontal frame; 4011. Horizontal protrusion; 402. Base; 403. First motor; 404. Horizontal reciprocating screw; 405. Transmission belt; 406. Horizontal sliding block;

[0070] 50, telescopic compensation assembly; 501, top plate; 502, L-shaped bracket; 503, telescopic cylinder; 504, vertical slide; 505, compensation block; 506, tenon positioning block; 507, optical correction structure; 5071, power module; 5072, signal module; 5073, displacement sensor;

[0071] 60. Lifting and conveying assembly; 601. First gear; 602. Second gear; 603. Vertical frame; 6031. Vertical protrusion; 604. Vertical reciprocating screw rod; 605. Vertical sliding block; 606. Mounting column;

[0072] 70. Telescopic clamping assembly; 701. Lifting bracket; 702. Second motor; 703. Threaded rod; 7031. Threaded groove; 704. Center protrusion; 705. Threaded telescopic block; 706. Downward pressing structure; 7061. Top frame; 7062. Downward pressing cylinder; 7063. Downward pressing block; 7064. Support block. DETAILED DESCRIPTION

[0073] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0074] See also Figure 1-Figure 14 A three-coordinate measuring fixture for a circular arc bottom tenon blade comprises an L-shaped measuring plate 10, an integrated telescopic clamping mechanism 20 and an optical angle measuring component 30. A plurality of mounting accessories 101 are installed on the outer side of the L-shaped measuring plate 10. An integrated telescopic clamping mechanism 20 extending to the outer side is installed inside the L-shaped measuring plate 10. The tenon blade is clamped and fixed on the inner side of the integrated telescopic clamping mechanism 20. An optical angle measuring component 30 located on the side of the integrated telescopic clamping mechanism 20 is installed on the outer side of the L-shaped measuring plate 10. The optical angle measuring component 30 is arranged toward the tenon blade and performs an angle measurement operation on the tenon blade. The integrated telescopic clamping mechanism 20 includes It includes a screw conveying assembly 40, which is installed inside the L-shaped measuring plate 10, and a telescopic compensation assembly 50 is installed on the top, the telescopic compensation assembly 50 extends to the left and right sides of the tenon blade, and supports and fixes the tenon blade, and optical angle measurement assemblies 30 are installed on the left and right sides of the screw conveying assembly 40; and a lifting conveying assembly 60, which is installed inside the L-shaped measuring plate 10 and is connected by the screw conveying assembly 40, the lifting conveying assembly 60 and the screw conveying assembly 40 are relatively vertically arranged, and a telescopic clamping assembly 70 is installed on the side, and the tenon blade is clamped and fixed on the side of the telescopic clamping assembly 70.

[0075] The above working principle: in the process of measuring the tenon blade, firstly, one side of the tenon connection part at the bottom of the tenon blade is clamped and positioned by the telescopic clamping assembly 70. Then, the screw conveying assembly 40 is started to operate, and the telescopic compensation assembly 50 installed on its top by screws is moved to the inside of the optical angle measurement assembly 30, and the left and right sides of the tenon connection part at the bottom of the tenon blade are supported and positioned, so as to ensure that in the process of measuring the arc bottom surface (blade part) of the tenon blade by the optical angle measurement assembly 30, the front, left and right sides of the tenon blade can be measured at one time, and a three-dimensional figure is formed by the measurement results inside the control panel, so as to improve the accuracy of the three-coordinate measurement of the tenon blade. At the same time, when the telescopic compensation component 50 is operating, the lifting and conveying component 60 can be driven to operate synchronously, so that the tenon blade clamped and fixed by the telescopic clamping component 70 on the side of the lifting and conveying component 60 can be automatically moved to the inner side of the optical angle measurement component 30, ensuring that the angle (irregular surface and contour part) measurement process can be completed at one time without the need for position and angle adjustment and correction, thereby improving the accuracy of the tenon blade angle (irregular surface and contour part) measurement each time.

[0076] Specific reference Figure 5 The optical angle measuring assembly 30 includes a connecting arm 301, which is installed on the outer side of the L-shaped measuring plate 10 by screws, and a side goniometer 302 is installed on the top, and the side goniometer 302 is arranged toward the tenon blade, and measures the angles of the tenon blade on the X and Z axes; a mounting arm 303, which is installed on the outer side of the L-shaped measuring plate 10 by screws and is located on the side of the connecting arm 301, and a front goniometer 304 is installed between the two sets of mounting arms 303, and the front goniometer 304 is arranged above the telescopic compensation assembly 50, wherein the front goniometer 304 is arranged toward the tenon blade, and measures the angles of the tenon blade on the Y and Z axes.

[0077] In the three-coordinate measuring fixture of the circular arc bottom surface tenon blade of the present invention, when measuring the circular arc bottom surface (irregular surface and contour) of the tenon blade, the side angle meter 302 can shoot and measure the left and right sides of the tenon blade, and transmit it to the control panel in the form of optical-electrical-optical conversion to construct its X and Z axis coordinate diagram; the front angle meter 304 can shoot and measure the front of the tenon blade, and transmit it to the control panel in the form of optical-electrical-optical conversion to construct its Y and Z axis coordinate diagram. The coordinate diagram (X, Y, Z) constructed afterwards is integrated and processed in the control panel, and the three-dimensional data of the entire figure is constructed and displayed.

[0078] Specific reference Figure 8The screw conveying assembly 40 includes a horizontal frame 401, which is installed inside the L-shaped measuring plate 10 and is provided with two groups. A first motor 403 is installed on the side of one group of horizontal frames 401 through a base 402; a horizontal reciprocating screw 404, one end of which is connected to the output end of the first motor 403 and is rotatably connected to the inside of the horizontal frame 401, and a side of the horizontal frame 401 located outside the horizontal frame 401 is connected with a transmission belt 405 through a synchronous wheel, wherein the transmission belt 405 is movably connected to the side of the horizontal frame 401 and the L-shaped measuring plate 10, and another group of horizontal reciprocating screws 404 are connected to the inner side through a synchronous wheel; a horizontal sliding block 406, which is connected to the outer side of the horizontal reciprocating screw 404 through a ball bearing, and there are two groups of horizontal sliding blocks 406.

[0079] In this embodiment, the horizontal sliding block 406 is slidably connected to the horizontal protrusion 4011 on the inner wall of the horizontal frame 401, and a telescopic compensation assembly 50 is installed on the top of the horizontal sliding block 406 by screws, wherein the bottoms of the two sets of horizontal reciprocating screws 404 extend to the outside of the horizontal frame 401 and are connected to the lifting and conveying assembly 60, and the telescopic movement of the horizontal sliding block 406 can drive the telescopic compensation assembly 50 to move, so as to facilitate the subsequent support of the left and right sides of the bottom of the tenon blade by the telescopic compensation assembly 50. The lifting and conveying assembly 60 connected at the bottom can be driven to operate synchronously by the rotation of the horizontal reciprocating screw 404.

[0080] In the three-coordinate measuring fixture for the tenon blade with a circular arc bottom surface of the present invention, when measuring the tenon blade, starting the first motor 403 to operate can drive a set of horizontal reciprocating screws 404 connected to its output end to rotate, and make the horizontal sliding block 406 connected to the outside of the horizontal reciprocating screw 404 through the ball to telescopically move. When a set of horizontal reciprocating screws 404 rotates, it will drive the transmission belt 405 connected to the outside through the synchronous wheel to operate, and make another set of horizontal reciprocating screws 404 and horizontal sliding block 406 connected to the inside of the transmission belt 405 through the synchronous wheel to operate, respectively driving the two sets of telescopic compensation components 50 installed on the top to move in the same direction.

[0081] Specific reference Fig. 9 and Fig.10The telescopic compensation assembly 50 includes a top plate 501, which is installed on the top of the horizontal sliding block 406 by screws, and an L-shaped bracket 502 is installed on the top by screws, and a telescopic cylinder 503 is installed on the side of the L-shaped bracket 502; a vertical slide plate 504, which is installed on the top of the L-shaped bracket 502 by screws, and a compensation block 505 is slidably connected to the outer side of the top, and the compensation block 505 is connected to the output end of the telescopic cylinder 503, wherein a tenon positioning block 506 is detachably installed on the top of the compensation block 505, and the tenon positioning block 506 supports and fixes the tenon blades on the side.

[0082] In the three-coordinate measuring fixture of the circular arc bottom tenon blade of the present invention, when supporting and positioning the left and right sides of the tenon blade, the telescopic cylinder 503 can operate and drive the compensation block 505 and the tenon positioning block 506 connected to its output end to move, and move the tenon positioning block 506 to the middle of the left and right sides of the tenon blade to ensure the stability and firmness of the tenon blade when supporting and positioning. The design of the vertical slide 504 can ensure the stability of the top compensation block 505 when telescopically moving.

[0083] Specific reference Fig. 9 and Fig.10 An optical correction structure 507 located on the side of the two groups of vertical slides 504 is also installed on the top of the top plate 501, and the optical correction structure 507 includes a power module 5071, a signal module 5072 and a displacement sensor 5073, wherein the power module 5071 and the signal module 5072 are both installed on the side of the vertical slide 504, and are both electrically connected to the displacement sensor 5073 through wires, and the displacement sensor 5073 is installed between the two groups of vertical slides 504, and wherein the measuring end of the displacement sensor 5073 is arranged toward one side of the compensation block 505 and is arranged below the compensation block 505.

[0084] In the three-coordinate measuring fixture of the circular arc bottom tenon blade of the present invention, during the process of supporting and positioning the left and right sides of the tenon blade, the displacement sensor 5073 can measure the displacement of the tenon positioning block 506 when it is telescopically moved, so as to ensure the accuracy of supporting and positioning the tenon blade. The design of the power module 5071 can provide power for the operation of the power module 5071 and the signal module 5072; the signal module 5072 is used to receive and send commands from the control panel to realize the automatic compensation support operation.

[0085] Specific reference Fig.11 and Fig.12The lifting and conveying assembly 60 includes a first gear 601, which is installed at the other end of the horizontal reciprocating screw rod 404 and is rotatably connected to the bottom of the horizontal frame 401. The side of the first gear 601 is meshed with a second gear 602, and the second gear 602 is rotatably connected to the bottom of the vertical frame 603, wherein the vertical frame 603 is installed inside the L-shaped measuring plate 10 and is provided with two groups; a vertical reciprocating screw rod 604, which is rotatably connected to the inside of the vertical frame 603, and the bottom is connected to the second gear 602, and the outer side of the vertical reciprocating screw rod 604 is connected to a vertical sliding block 605 through a ball bearing.

[0086] In this embodiment, the vertical sliding block 605 is slidably connected to the vertical protrusion 6031 set on the inner wall of the vertical frame 603, and the side of the vertical sliding block 605 is installed with a mounting column 606 by screws, wherein the sides of the two groups of mounting columns 606 are provided with a telescopic clamping assembly 70, which can be driven to move synchronously by the lifting and lowering movement of the vertical sliding block 605.

[0087] In the three-coordinate measuring fixture of the circular arc bottom tenon blade of the present invention, when the horizontal reciprocating screw 404 rotates, it drives the first gear 601 installed at its end to rotate, and enables the second gear 602 meshed and connected to the side of the first gear 601 to rotate. When the second gear 602 rotates, it drives the vertical reciprocating screw 604 connected to its top to rotate, and enables the vertical sliding block 605 connected to the outside of the vertical reciprocating screw 604 through the ball bearing to move up and down.

[0088] Specific reference Fig.13 and Fig.14 The telescopic clamping assembly 70 includes a lifting bracket 701, which is welded and fixed on the sides of the two groups of mounting columns 606, and a second motor 702 is installed on one side, and a threaded rod 703 is connected to the output end of the second motor 702, and the threaded rod 703 is rotatably connected to the inner side of the lifting bracket 701, wherein the outer surface of the threaded rod 703 is provided with two groups of thread grooves 7031 in opposite directions, and the central part of the interior is rotatably connected to the interior of a central protrusion 704, and the central protrusion 704 is installed at the center of the side of the lifting bracket 701; a threaded telescopic block 705, which is threadedly connected to the outside of the threaded groove 7031 on the outer surface of the threaded rod 703, and is slidably connected to the side of the lifting bracket 701, and a downward pressing structure 706 is installed on the side of the threaded telescopic block 705.

[0089] In this embodiment, the downward pressure structure 706 includes a top frame 7061, which is installed on the top of the threaded telescopic block 705 by screws, and a downward pressure cylinder 7062 is installed on the top, and the output end of the downward pressure cylinder 7062 is connected to a downward pressure block 7063 that passes through the top frame 7061; a support block 7064, which is installed on the side of the threaded telescopic block 705, and a tenon blade is fixed between the downward pressure block 7063 and the support block 7064.

[0090] In the above embodiment, the downward pressure cylinder 7062 can operate and drive the downward pressure block 7063 connected to its output end to move up and down, and press down the tenon connection part at the bottom of the tenon blade located on the top of the support block 7064, thereby completing the initial squeezing and fixing of the tenon blade, ensuring that the subsequent tenon blade will not deviate or shake during the lifting and lowering process.

[0091] In the three-coordinate measuring fixture of the circular arc bottom tenon blade of the present invention, during the process of pressing down and fixing the tenon blade, the second motor 702 can operate and drive the threaded rod 703 connected to its output end to rotate. When the threaded rod 703 rotates, it drives the threaded telescopic block 705 connected to its surface through the thread groove 7031 to telescope and move, adjust the position of pressing down and fixing the tenon connection part at the bottom of the tenon blade, and further ensure the stability of fixing the tenon blade.

[0092] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A three-coordinate measuring fixture for a circular arc bottom tenon blade, comprising an L-shaped measuring plate (10), an integrated telescopic clamping mechanism (20) and an optical angle measuring component (30), characterized in that: A plurality of sets of mounting accessories (101) are installed on the outer side of the L-shaped measuring plate (10), an integrated telescopic clamping mechanism (20) extending to the outer side is installed inside the L-shaped measuring plate (10), and a tenon blade is clamped and fixed on the inner side of the integrated telescopic clamping mechanism (20), An optical angle measuring component (30) located on the side of the integrated telescopic clamping mechanism (20) is installed on the outer side of the L-shaped measuring plate (10); the optical angle measuring component (30) is arranged toward the tenon blade and performs an angle measurement operation on the tenon blade. Wherein, the integrated telescopic clamping mechanism (20) comprises: a screw conveying assembly (40), the screw conveying assembly (40) being installed inside the L-shaped measuring plate (10), and having a telescopic compensation assembly (50) installed on the top, the telescopic compensation assembly (50) extending to the left and right sides of the tenon blade and supporting and fixing the tenon blade, and having optical angle measurement assemblies (30) installed on the left and right sides of the screw conveying assembly (40); and A lifting and conveying assembly (60) is installed inside the L-shaped measuring plate (10) and is connected to the screw conveying assembly (40). The lifting and conveying assembly (60) and the screw conveying assembly (40) are arranged vertically relative to each other, and a telescopic clamping assembly (70) is installed on the side. The side of the telescopic clamping assembly (70) clamps and fixes a tenon blade.

2. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 1, characterized in that: The optical angle measuring component (30) comprises: A connecting arm (301), the connecting arm (301) is mounted on the outside of the L-shaped measuring plate (10) by means of screws, and a side goniometer (302) is mounted on the top, the side goniometer (302) is arranged toward one side of the tenon blade, and performs an X-axis and Z-axis angle measurement operation on the tenon blade; A mounting arm (303) is mounted on the outside of the L-shaped measuring plate (10) by means of screws and is located on the side of the connecting arm (301). A front angle meter (304) is mounted between two groups of the mounting arms (303). The front angle meter (304) is arranged above the telescopic compensation assembly (50). Wherein, the front angle meter (304) is arranged toward the tenon blade, and measures the angles of the tenon blade on the Y and Z axes.

3. The three-coordinate measuring fixture for arc bottom tenon blade according to claim 1, characterized in that: The screw conveying assembly (40) comprises: A horizontal frame (401), the horizontal frame (401) is installed inside the L-shaped measuring plate (10), and two groups are provided, and a first motor (403) is installed on the side of one group of the horizontal frames (401) through a base (402); a horizontal reciprocating screw rod (404), one end of which is connected to the output end of the first motor (403) and is rotatably connected to the inside of the horizontal frame (401); a side of the horizontal frame (401) located outside the horizontal frame (401) is connected to a transmission belt (405) via a synchronous wheel, The transmission belt (405) is movably connected to the side of the horizontal frame (401) and the L-shaped measuring plate (10), and is also connected to another set of horizontal reciprocating screw rods (404) on the inner side via a synchronous wheel; A horizontal sliding block (406), wherein the horizontal sliding block (406) is connected to the outer side of the horizontal reciprocating screw rod (404) via a ball bearing, and two groups of the horizontal sliding blocks (406) are provided.

4. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 3, characterized in that: The horizontal sliding block (406) is slidably connected to the horizontal protrusion (4011) on the inner wall of the horizontal frame (401), and a telescopic compensation component (50) is installed on the top of the horizontal sliding block (406) by screws. The bottoms of the two groups of horizontal reciprocating screw rods (404) extend to the outside of the horizontal frame (401) and are connected to a lifting and conveying assembly (60).

5. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 4, characterized in that: The telescopic compensation component (50) comprises: A top plate (501), the top plate (501) is mounted on the top of the horizontal sliding block (406) by means of screws, and an L-shaped bracket (502) is mounted on the top by means of screws, and a telescopic cylinder (503) is mounted on the side of the L-shaped bracket (502); A vertical slide plate (504), the vertical slide plate (504) is mounted on the top of the L-shaped bracket (502) by means of screws, and a compensation block (505) is slidably connected to the outer side of the top, and the compensation block (505) is connected to the output end of the telescopic cylinder (503), Wherein, a tenon positioning block (506) is detachably mounted on the top of the compensation block (505), and the tenon positioning block (506) supports and fixes the tenon blades on the side.

6. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 5, characterized in that: An optical correction structure (507) is also installed on the top of the top plate (501) and is located on the sides of the two groups of vertical slides (504). The optical correction structure (507) includes a power module (5071), a signal module (5072) and a displacement sensor (5073). The power module (5071) and the signal module (5072) are both installed on the side of the vertical slide plate (504), and are both electrically connected to the displacement sensor (5073) through a wire, and the displacement sensor (5073) is installed between two groups of the vertical slide plates (504), and Wherein, the measuring end of the displacement sensor (5073) is arranged toward one side of the compensation block (505) and is arranged below the compensation block (505).

7. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 4, characterized in that: The lifting and conveying assembly (60) comprises: a first gear (601), the first gear (601) being mounted on the other end of the horizontal reciprocating screw rod (404) and being rotatably connected to the bottom of the horizontal frame (401), a second gear (602) being meshedly connected to the side of the first gear (601), and the second gear (602) being rotatably connected to the bottom of the vertical frame (603), Wherein, the vertical frame (603) is installed inside the L-shaped measuring plate (10), and two groups are provided; A vertical reciprocating screw rod (604) is rotatably connected to the inside of the vertical frame (603), and the bottom is connected to the second gear (602). The outer side of the vertical reciprocating screw rod (604) is connected to a vertical sliding block (605) via a ball bearing.

8. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 7, characterized in that: The vertical sliding block (605) is slidably connected to a vertical protrusion (6031) provided on the inner wall of the vertical frame (603), and a mounting column (606) is mounted on the side of the vertical sliding block (605) by means of screws. Wherein, telescopic clamping assemblies (70) are arranged on the sides of the two groups of mounting columns (606).

9. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 8, characterized in that: The telescopic clamping assembly (70) comprises: A lifting bracket (701), the lifting bracket (701) is welded and fixed to the side surfaces of the two groups of mounting columns (606), and a second motor (702) is installed on one side, the output end of the second motor (702) is connected to a threaded rod (703), and the threaded rod (703) is rotatably connected to the inner side of the lifting bracket (701), The outer surface of the threaded rod (703) is provided with two sets of thread grooves (7031) in opposite directions, and the central part inside is rotatably connected to the inside of a central protrusion (704), and the central protrusion (704) is installed at the center of the side of the lifting bracket (701); A threaded telescopic block (705), the threaded telescopic block (705) is threadedly connected to the outside of the threaded groove (7031) on the outer surface of the threaded rod (703), and is slidably connected to the side of the lifting bracket (701), and a downward pressing structure (706) is installed on the side of the threaded telescopic block (705).

10. The three-coordinate measuring fixture for arc bottom tenon blades according to claim 9, characterized in that: The pressing structure (706) comprises: A top frame (7061), the top frame (7061) is mounted on the top of the threaded telescopic block (705) by means of screws, and a downward pressure cylinder (7062) is mounted on the top, and the output end of the downward pressure cylinder (7062) is connected to a downward pressure block (7063) that passes through the top frame (7061); A support block (7064) is installed on the side of the threaded telescopic block (705), and a tenon blade is fixed between the pressing block (7063) and the support block (7064).

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