Three-coordinate detection fixing assembly for flange plate type special-shaped workpiece

Abstract

The utility model relates to the technical field of three-coordinate detection, in particular to a three-coordinate detection fixing assembly for a flange plate type special-shaped workpiece, and mainly solves the technical problems that an existing three-coordinate detection fixing assembly for the flange plate type special-shaped workpiece is poor in supporting firmness and easy to damage the surface of the workpiece. The assembly comprises a clamping and supporting seat, the clamping and supporting seat comprises a first base, a fixed block, a first clamping plate, a screw rod, a movable block and a second clamping plate, and the clamping and supporting seat clamps and supports a flange plate of a workpiece so as to fix the workpiece on a three-coordinate platform. On one hand, the weight of the workpiece is directly and vertically transmitted to the three-coordinate platform through the fixing block and the first base in sequence, so that the bearing force is large, supporting is firm, and the device is suitable for the heavy workpiece; and on the other hand, due to the fact that the screw rotates to drive the two clamping plates to be close to each other so as to clamp the workpiece, damage to the surface of the workpiece due to existing screws can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to three -coordinate detection technical field especially relates to a three -coordinate detection fixed subassembly for flange plate class special -shaped work piece. BACKGROUND

[0002] Three -coordinate, namely three -coordinate measuring machine, it is in three -dimensional measurable space range, can according to the point data returned by probe system, through the software system of three -coordinate calculation various geometric shapes, size etc.

[0003] Flange plate class special -shaped work piece, namely at least with one flange plate's shape irregular work piece. The present for this work piece, the patent with the announcement number CN222617874U provides a three -coordinate measurement support assembly, including U type seat, U type seat can rotate or be driven to rotate by connecting shaft, cooperate first lifting first base, U type seat can adjust space position and clamping angle, to be able to clamp positioning special -shaped parts certain edge, when using through the collocation different number of clamping support seat can complete the support to flange plate class special -shaped parts. But this structure has the following defects in actual use: first, because the structure adopts universal connection structure, relies on locking piece to realize fixed, and adopts the mode of clamping workpiece edge to realize the fixation of workpiece on three -coordinate table, for the workpiece of heavy weight, it is easy to occur in the debugging process and shift, influence detection accuracy, second, U type seat adopts screw and directly abuts workpiece and carries out clamping, and it is easy to damage the workpiece surface. UTILITY MODEL CONTENTS

[0004] In order to overcome the technical defects that the three -coordinate detection fixed subassembly for flange plate class special -shaped work piece exists poor support firmness and easy to damage the workpiece surface, the utility model provides a three -coordinate detection fixed subassembly for flange plate class special -shaped work piece.

[0005] The three -coordinate detection fixed subassembly for flange plate class special -shaped work piece provided by the utility model, including clamping support seat, the clamping support seat includes:

[0006] First base, to be fixed on three -coordinate platform;

[0007] Fixed block, located at the top of the first base, the top surface of the fixed block is provided with an elongated mounting slot;

[0008] First clamping plate, fixed above the fixed block and located at one side of the length direction of the mounting slot, the plate surface of the first clamping plate is perpendicular to the length direction of the mounting slot;

[0009] Screw rod, rotatably installed on the fixed block, the screw rod is arranged along the length direction of the mounting slot and penetrates the mounting slot;

[0010] a moving block slidingly connected in the mounting slot and threadedly sleeved on the screw rod;

[0011] a second clamping plate fixed above the moving block and having a plate surface perpendicular to the length direction of the mounting slot.

[0012] Optionally, both end slot walls of the mounting slot in the length direction are provided with through holes, both ends of the screw rod are provided as light rod sections and the two light rod sections are respectively gap-inserted in the two through holes, the light rod of at least one end of the screw rod is provided with an annular groove, and a limiting pin is fixed on the fixed block and partially placed in the annular groove to axially limit the screw rod.

[0013] Optionally, the moving block protrudes above the fixed block to form a protruding portion, the protruding portion is detachably fixed with an inverted U-shaped clamping seat, and the second clamping plate is integrally formed above one end of the U-shaped clamping seat.

[0014] Optionally, the bottom of the U-shaped clamping seat is limitingly matched with the top of the fixed block to only allow the U-shaped clamping seat to slide on the fixed block in the length direction of the mounting slot.

[0015] Optionally, the top support seat further comprises:

[0016] a second base fixed on the three-coordinate platform;

[0017] a top support block mounted on the top end of the second base.

[0018] Optionally, the top support block is a flat top block with a flat top surface or a V-shaped top block with a V-shaped groove provided on the top surface.

[0019] Optionally, the first base and the second base both comprise:

[0020] a fixed seat fixed on the three-coordinate platform;

[0021] a stud vertically arranged and screwed in the fixed seat, the top surface of the stud being provided with a threaded blind hole, the bottom end of the fixed block or the top support block extending a connecting column and being screwed in the threaded blind hole through the connecting column to be fixed;

[0022] a locking nut screwed on the stud and pressed on the top end of the fixed seat.

[0023] Optionally, the fixed seat comprises a base plate, the base plate being provided with a mounting cylinder, the top of the mounting cylinder being provided with a first external thread section, the first external thread section being screwed with a threaded cylinder, the top of the threaded cylinder being provided with a first internal thread section matched with the stud, and the bottom of the threaded cylinder being provided with a second internal thread section matched with the first external thread section.

[0024] Optionally, the three-coordinate detection fixing assembly for the flange plate type special-shaped workpiece further comprises an adapter strip, a strip-shaped slot is arranged on the adapter strip along the length direction of the adapter strip, the adapter strip is fixed on the three-coordinate platform through a first fastener penetrating the strip-shaped slot, a plurality of first notch slots are arranged on the bottom surface of the bottom disc in a circumferential direction, the first notch slots are used for accommodating the end of the adapter strip, and the top of each first notch slot extends to the top surface of the bottom disc through an avoiding part.

[0025] Optionally, the avoiding part is a second notch slot arranged on the top surface of the bottom disc, and the slot width of the second notch slot is smaller than that of the first notch slot.

[0026] Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

[0027] The three-coordinate detection fixing assembly for the flange plate type special-shaped workpiece provided by the utility model realizes the fixation of the workpiece on the three-coordinate platform by clamping and supporting the flange plate of the workpiece through the clamping support seat; on one hand, since the weight of the workpiece is directly vertically transmitted to the three-coordinate platform through the fixing block and the first base in sequence, the bearing force is large, and the support is reliable, and the assembly is suitable for the workpiece with heavy weight; on the other hand, since the two clamping plates are relatively close to each other to clamp the workpiece through the rotation of the screw rod, the damage of the workpiece surface caused by the screw in the prior art can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present utility model, and together with the description, serve to explain the principle of the present utility model.

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] Figure 1 The structure schematic view of the clamping support seat in the embodiment of the present utility model is shown;

[0031] Figure 2 The exploded view of the clamping support seat in the embodiment of the present utility model is shown;

[0032] Figure 3 The structure schematic view of the top support seat in the embodiment of the present utility model is shown;

[0033] Figure 4An exploded view of the top support seat in the embodiment of the utility model shows;

[0034] Figure 5 An application state schematic diagram of the three-coordinate detection fixing assembly in the embodiment of the utility model shows

[0035] Figure 6 An application state schematic diagram of the three-coordinate detection fixing assembly in the embodiment of the utility model shows Figure 1 ;

[0036] Figure 7 An application state schematic diagram of the three-coordinate detection fixing assembly in the embodiment of the utility model shows Figure 1 ;

[0037] Figure 8 An application state schematic diagram of the three-coordinate detection fixing assembly in the embodiment of the utility model shows

[0038] In the figure,

[0039] 1, clamping support seat; 11, first base; 12, fixed block; 121, mounting groove; 13, first clamping plate; 14, screw; 141, light rod section; 142, annular groove; 15, moving block; 151, outer extension; 16, second clamping plate; 17, limit pin; 18, U-shaped clamping seat; 2, top support seat; 21, second base; 22, top support block; 31, fixed seat; 311, base plate; 3111, first notch groove; 3112, second notch groove; 3113, sink groove; 312, mounting cylinder; 313, first outer thread section; 314, threaded cylinder; 32, stud; 33, connecting column; 34, locking nut; 4, adapter strip plate; 41, strip-shaped groove; 42, first fastener; 43, second fastener; 100, three-coordinate platform; 200, mounting hole; 300, workpiece; 400, storage box. DETAILED DESCRIPTION

[0040] In order to make the above object, features and advantages of the utility model more clearly understood, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0041] In the description, it should be noted that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. It should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0043] The following is combined Figures 1 to 8 The specific embodiments of this utility model will be described in detail below.

[0044] This embodiment provides a coordinate measuring and fixing assembly for flange-type irregular workpieces, including a clamping base 1. The clamping base 1 includes a first base 11, a fixing block 12, a first clamping plate 13, a screw 14, a moving block 15, and a second clamping plate 16.

[0045] The first base 11 is used to fix it on the three-coordinate platform 100.

[0046] Specifically, refer to Figure 1 and Figure 2 The first base 11 includes a fixing seat 31, a stud 32, and a locking nut 34. The fixing seat 31 is used to fix it on the three-coordinate platform 100. The stud 32 is vertically arranged and screwed into the fixing seat 31. The top surface of the stud 32 is provided with a threaded blind hole. The bottom end of the fixing block 12 extends with a connecting post 33 and is screwed into the threaded blind hole to achieve fixation. The locking nut 34 is screwed onto the stud 32 and pressed against the top of the fixing seat 31. During installation, the stud 32 is screwed into the fixing seat 31. The height of the first base 11 is adjusted by the screwing length. When the target height is reached, the locking nut 34 is screwed onto the stud 32 and pressed against the top of the fixing seat 31 to complete the assembly of the first base 11. Finally, the connecting post 33 of the fixing block 12 is screwed into the threaded blind hole and the fixing block 12 is pressed against the top surface of the stud 32 to fix the fixing block 12 on the first base 11.

[0047] More specifically, the mounting base 31 includes a chassis 311, on which a mounting cylinder 312 is provided. The top of the mounting cylinder 312 has a first external thread section 313, to which a threaded cylinder 314 is screwed. The top of the threaded cylinder 314 has a first internal thread section that mates with the stud 32, and the bottom of the threaded cylinder 314 has a second internal thread section that mates with the first external thread section 313. During installation, the threaded cylinder 314 is first installed on the top of the mounting cylinder 312 by engaging the first external thread section 313 and the second internal thread section, and then the stud 32 is screwed into the threaded cylinder 314 by engaging the first internal thread section.

[0048] The fixing block 12 is located at the top of the first base 11, and the top surface of the fixing block 12 has an elongated mounting groove 121.

[0049] The first clamping plate 13 is fixed above the fixed block 12 and on one side of the length direction of the mounting groove 121, and the plate surface of the first clamping plate 13 is perpendicular to the length direction of the mounting groove 121.

[0050] Specifically, the first clamping plate 13 and the fixed block 12 can be fixed by one-piece forming, welding, or connecting pieces such as bolts. For example, the first clamping plate 13 and the fixed block 12 in the embodiment are fixed by one-piece forming.

[0051] The screw rod 14 is rotatably installed on the fixed block 12, and the screw rod 14 is arranged along the length direction of the mounting groove 121 and penetrates the mounting groove 121.

[0052] Specifically, both ends of the mounting groove 121 are provided with through holes, both ends of the screw rod 14 are provided with light rod sections 141, and the two light rod sections 141 are respectively inserted into the two through holes. The light rod section 141 at least one end of the screw rod 14 is provided with an annular groove 142, and the fixed block 12 is fixed with a limiting pin 17, and the limiting pin 17 is partially arranged in the annular groove 142 to limit the axial direction of the screw rod 14. During installation, the screw rod 14 penetrates the mounting groove 121, and the two light rod sections 141 of the screw rod 14 are arranged in the two through holes, respectively. Finally, the limiting pin 17 is inserted into the fixed block 12, and the limiting pin 17 is partially arranged in the annular groove 142. The limiting pin 17 cooperates with the annular groove 142 to block the axial movement of the screw rod 14, and cooperates with the gap between the light rod section 141 and the through hole to realize the rotatable installation of the screw rod 14 on the fixed block 12. This rotatable installation method is convenient for installation and disassembly.

[0053] More specifically, the limiting pin 17 is screwed and fixed in the fixed block 12, further improving the convenience of disassembly.

[0054] The moving block 15 is slidably connected in the mounting groove 121 and threadedly connected to the screw rod 14. When the screw rod 14 rotates, the moving block 15 cannot rotate due to the limitation, so the moving block 15 will translate along the mounting groove 121.

[0055] As can be easily understood, the so-called sliding connection means that the moving block 15 can only slide and cannot rotate during movement. For example, the cross section of the mounting groove 121 is rectangular, and the moving block 15 is arranged in the mounting groove 121 and the cross section is adapted to the mounting groove 121, so as to realize the sliding connection.

[0056] The second clamping plate 16 is fixed above the moving block 15 and the plate surface is perpendicular to the length direction of the mounting groove 121.

[0057] Specifically, the mobile block 15 extends above the fixed block 12 to form an extension 151, and the extension 151 is detachably fixed with an inverted U-shaped clamping seat 18, and the second clamping plate 16 is integrally formed above one end of the U-shaped clamping seat 18. Such a structure can support the workpiece 300 on the U-shaped clamping seat 18 when clamping the workpiece 300, which is more stable than supporting the workpiece 300 on the groove wall of the mounting groove 121. It should be noted that the orientation of the U-shaped clamping seat 18, i.e., the positive orientation and the reverse orientation, will affect the upper and lower limits of the distance between the two clamping plates. If the second clamping plate 16 is installed at the end of the U-shaped clamping seat 18 away from the first clamping plate 13, it is defined as positive orientation, but if the second clamping plate 16 is installed at the end of the U-shaped clamping seat 18 close to the first clamping plate 13, it is defined as reverse orientation. When the positive orientation, the upper and lower limits of the distance between the two clamping plates are greater than when the reverse orientation. In actual use, the positive orientation or the reverse orientation of the U-shaped clamping seat 18 can be adaptively determined as needed.

[0058] More specifically, the bottom of the U-shaped clamping seat 18 is limitedly matched with the top of the fixed block 12 to allow the U-shaped clamping seat 18 to slide on the fixed block 12 only in the length direction of the mounting groove 121. Since the U-shaped clamping seat 18 is fixedly connected with the mobile block 15, the limited matching between the U-shaped clamping seat 18 and the fixed block 12 can improve the stability of the combined structure of the mobile block 15 and the U-shaped clamping seat 18.

[0059] In actual use, the flange plate of the workpiece 300 can be clamped and fixed by several clamping seats 1. If the workpiece 300 has only one flange plate, two clamping seats 1 can be clamped on both ends of the flange plate to improve the stability of the workpiece 300, as shown in Figure 6 If the workpiece 300 is provided with multiple flange plates, multiple clamping seats 1 can be used to clamp on the multiple flange plates, as shown in Figure 7 However, for some workpieces 300 that are heavy or have uneven weight distribution, it is necessary to provide support at specific positions to improve the stability of the support. Therefore, the present embodiment also includes a supporting seat 2, as shown in Figure 3 and Figure 4 The supporting seat 2 includes a second base 21 and a supporting block 22. The second base 21 is used to be fixed on the three-coordinate platform 100, and the supporting block 22 is installed on the top end of the second base 21.

[0060] Specifically, the supporting block 22 is a flat top block with a flat top surface or a V-shaped top block with a V-shaped groove on the top surface to adapt to different shapes of the parts to be supported.

[0061] Specifically, the second base 21 has the same structure as the first base 11 and also includes a fixing seat 31, a stud 32, and a recessed nut. The bottom end of the supporting block 22 extends a connecting column 33 which is screwed into the threaded blind hole to achieve fixation. Here, no further description is given.

[0062] In addition, as shown in Figure 1and Figure 5 As shown, the three-coordinate detection fixed assembly further comprises an adapter strip 4, the adapter strip 4 is provided with a strip-shaped slot 41 arranged along the length direction of the adapter strip 4, the adapter strip 4 is fixed on the three-coordinate platform 100 through a first fastener 42 penetrating the strip-shaped slot 41, the bottom surface of the base plate 311 is provided with a plurality of first notch slots 3111 distributed along the circumferential direction of the base plate 311, the first notch slots 3111 are used to accommodate the end portions of the adapter strip 4, the top portion of each first notch slot 3111 extends to the top surface of the base plate 311 through an avoiding portion, and the base plate 311 is fixedly connected with the end portions of the adapter strip 4 accommodated in the first notch slots 3111 through a second fastener 43 penetrating the avoiding portion. The adapter strip 4 is fixed on the three-coordinate platform 100 through the first fastener 42, and the base plate 311 is fixedly connected with the adapter strip 4 through the second fastener 43, so as to indirectly fix the base plate 311 on the three-coordinate platform 100.

[0063] It should be noted that since the mounting holes 200 on the three-coordinate platform 100 are arranged in a certain rule and the number is limited, and the shape of the special-shaped workpiece 300 is irregular, the positions of the clamping support seat 1 or the top support seat 2 are not necessarily located at the mounting holes 200. Therefore, the adapter strip 4 is additionally provided in the embodiment, the three-coordinate platform 100 is connected with the first base 11 or the second base 21 through the adapter strip 4, and the adjustable characteristics of the strip-shaped slot 41 can meet the installation of the first base 11 or the second base 21 at any position of the three-coordinate platform 100.

[0064] Specifically, the number of the strip-shaped slots 41 on the adapter strip 4 is not limited, and at least one is required, for example, three strip-shaped slots 41 are provided on the adapter strip 4 in the embodiment.

[0065] Specifically, in order to ensure the firmness of the connection between the base plate 311 and the adapter strip 4, a counter-sunk slot can be provided on the lower surface of the end portion of the adapter strip 4 placed in the first notch slot 3111, the second fastener 43 adopts a bolt and a nut, the bolt is sequentially penetrated through the avoiding portion and the adapter strip 4 and connected with the nut, and the nut is placed in the counter-sunk slot, so as to ensure the adhesion of the adapter strip 4 and the three-coordinate platform 100.

[0066] Specifically, the avoiding portion is a second notch slot 3112 provided on the top surface of the base plate 311, and the slot width of the second notch slot 3112 is smaller than that of the first notch slot 3111. When the base plate 311 needs to be removed, the second fastener 43 is loosened, and then the base plate 311 is moved along the opening of the second notch slot 3112 in the opposite direction to complete the removal. Compared with the scheme that the avoiding portion is a through hole, the removal and installation efficiency is higher.

[0067] More specifically, the top surface of the second notch slot 3112 is provided with a counter-sunk groove 3113 for accommodating the head portion of the second fastener 43.

[0068] The working principle of the three-coordinate detection fixing assembly for the flange plate type special-shaped workpiece of the embodiment is as follows:

[0069] First, the mounting position of the workpiece 300 and the required number and distribution position of the clamping support seat 1 and the top support seat 2 are preliminarily determined; then the clamping support seat 1 and the top support seat 2 are indirectly fixed on the three-coordinate platform 100 through the adapter strip 4; then the height of the clamping support seat 1 and the top support seat 2 is preliminarily adjusted to match the workpiece 300; then the workpiece 300 is placed on the clamping support seat 1 and the top support seat 2, and the workpiece 300 is clamped by the two clamping plates through the screw rod 14, at this time, if the position or height of the clamping support seat 1 or the top support seat 2 deviates, fine adjustment can be performed until the mounting position requirement of the workpiece 300 is met; finally, three-coordinate detection is performed.

[0070] It should be noted that since the components of the three-coordinate detection fixing assembly of the embodiment are detachable, a special storage box 400 can be provided for storage when not in use, as shown in Figure 8 .

[0071] The above is only a specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Although the foregoing embodiments have been described in detail, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered in the protection scope of the claims.

Claims

1. A three-coordinate detection fixing assembly for flange plate type special-shaped workpieces, characterized in that, The utility model provides a kind of clamp support seat (1), the clamp support seat (1) includes: First base (11) is used to be fixed on three coordinate platform (100); Fixed block (12) is located at the top of the first base (11), and the top surface of the fixed block (12) is provided with an elongated mounting slot (121); First clamping plate (13) is fixed above the fixed block (12) and located on one side of the length direction of the mounting slot (121), and the plate surface of the first clamping plate (13) is perpendicular to the length direction of the mounting slot (121); Screw rod (14) is rotatably installed on the fixed block (12), and the screw rod (14) is arranged along the length direction of the mounting slot (121) and penetrates the mounting slot (121); Moving block (15) is slidably connected in the mounting slot (121) and is threadedly connected on the screw rod (14); Second clamping plate (16) is fixed above the moving block (15) and the plate surface is perpendicular to the length direction of the mounting slot (121); Further comprising top support seat (2), the top support seat (2) includes: Second base (21) is used to be fixed on three coordinate platform (100); Top support block (22) is installed at the top of the second base (21).

2. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 1, characterized in that, Both ends of the mounting slot (121) are provided with through holes, both ends of the screw rod (14) are provided with light rod sections (141), and the two light rod sections (141) are respectively gap-inserted in the two through holes, and the light rod of at least one end of the screw rod (14) is provided with an annular groove (142), the fixed block (12) is fixed with a limit pin (17), and the limit pin (17) is partially located in the annular groove (142) to limit the axial direction of the screw rod (14).

3. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 1, characterized in that, The moving block (15) is extended above the fixed block (12) to form an extension (151), and the inverted U-shaped clamping seat (18) is detachably fixed on the extension (151).

4. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 3, characterized in that, The bottom of the U-shaped clamping seat (18) is limitedly matched with the top of the fixed block (12) to allow the U-shaped clamping seat (18) to slide on the fixed block (12) only along the length direction of the mounting slot (121).

5. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 1, characterized in that, The top support block (22) is a flat top block with a flat top surface or a V-shaped top block with a V-shaped groove on the top surface.

6. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 1, characterized in that, The first base (11) and the second base (21) both include: Fixed seat (31) is used to be fixed on three coordinate platform (100); Screw post (32) is vertically arranged and is screwed in the fixed seat (31), the top surface of the screw post (32) is provided with a threaded blind hole, the bottom end of the fixed block (12) or the top support block (22) is extended with a connecting column (33), and the connecting column (33) is screwed in the threaded blind hole to realize fixation; Locking nut (34) is screwed on the screw post (32) and is pressed on the top end of the fixed seat (31).

7. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 6, characterized in that, The fixing base (31) comprises a bottom plate (311) provided with a mounting cylinder (312), the top of the mounting cylinder (312) is provided with a first external thread section (313), the first external thread section (313) is screwed with a threaded cylinder (314), the top of the threaded cylinder (314) is provided with a first internal thread section matched with the stud (32), and the bottom of the threaded cylinder (314) is provided with a second internal thread section matched with the first external thread section (313).

8. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 7, characterized in that, Further comprising an adapter strip (4) provided with a strip-shaped slot (41) arranged along the length direction, the adapter strip (4) is fixed on the three-coordinate platform (100) through the first fastener (42) penetrating the strip-shaped slot (41), the bottom surface of the bottom plate (311) is provided with a plurality of first notch slots (3111) uniformly distributed along the circumferential direction, the first notch slots (3111) are used to accommodate the end of the adapter strip (4), the top of each first notch slot (3111) extends to the top surface of the bottom plate (311) through an avoiding part, and the bottom plate (311) is fixedly connected with the end of the adapter strip (4) accommodated in the first notch slot (3111) through the second fastener (43) penetrating the avoiding part.

9. The three-coordinate detection fixing assembly for flange plate special-shaped workpieces according to claim 8, characterized in that, The avoiding part is a second notch slot (3112) opened on the top surface of the bottom plate (311), and the slot width of the second notch slot (3112) is smaller than that of the first notch slot (3111).

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