Multifunctional three-coordinate clamp

Abstract

The utility model discloses a multi-functional three-coordinate fixture, relates to servo valve fixture technical field, the multi-functional three-coordinate fixture comprises a base, the same side on the base is provided with a first support piece, a limit piece and a second support piece in order, the two opposite ends of the first support piece protrude to form a support column, the middle of the limit piece protrudes to form a limit column, and the second support piece protrudes to form a second support column. The middle of the second supporting piece protrudes to form a clamping column. When the limiting piece and the first supporting piece are close to each other, the two supporting columns of the first supporting piece and the limiting column of the limiting piece define a first clamping position, and when the limiting piece and the second supporting piece are close to each other, the limiting column of the limiting piece and the clamping column of the second supporting piece define a second clamping position. The two supporting pieces and the limiting piece are adopted, and the two clamping positions are defined in a movable mode and used for clamping a large valve body and a small part respectively, so that one clamp can be matched with multiple structures of the whole servo valve, the clamp does not need to be replaced when three-coordinate measurement is carried out, and operation is simpler.

Description

Technical Field

[0001] This invention relates to the field of servo valve clamping technology, and in particular to a multifunctional three-coordinate clamp. Background Technology

[0002] After the servo valve components are manufactured, their accuracy needs to be tested to determine whether the dimensions are qualified. The tool used to test the accuracy of these small parts is usually a coordinate measuring machine (CMM). The coordinate measuring machine fixture is a special fixture used for the coordinate measuring machine. It is mainly used to fix and position the workpiece being measured to ensure stability and accuracy during the measurement process.

[0003] However, due to the relatively simple and specialized structure of coordinate measuring machine (CMM) fixtures, a single fixture is usually only suitable for the inspection of one type or class of parts, meaning there is only one inspection position. This results in the need to use multiple fixtures to inspect different parts of a servo valve, requiring frequent fixture changes, making the operation cumbersome and its versatility low. Summary of the Invention

[0004] The main purpose of this invention is to propose a multifunctional coordinate measuring machine fixture, which aims to solve the problem of frequent fixture changes required for measuring servo valve components.

[0005] To achieve the above objectives, the present invention proposes a multi-functional three-coordinate clamp for clamping the valve body and / or various components of a servo valve. The multi-functional three-coordinate clamp includes a base, on which a first support member, a limiting member and a second support member are sequentially arranged on the same side. The first support member has protrusions at opposite ends to form a support column, the limiting member has a protrusion in the middle to form a limiting column, and the second support member has a protrusion in the middle to form a clamping column.

[0006] When the limiting member and the first support member approach each other, the two support posts of the first support member and the limiting post of the limiting member define a first clamping position. When the limiting member and the second support member approach each other, the limiting post of the limiting member and the clamping post of the second support member define a second clamping position.

[0007] In one embodiment, the widths of the first support member, the limiting member, and the second support member are all the same as the width of the base, and the limiting post of the limiting member and the clamping post of the second support member are both located in the middle of the width direction.

[0008] In one embodiment, the multi-functional coordinate measuring machine further includes an operating rod and a fixing member. The first support member has a first mating hole that mates with the operating rod, and the limiting member has a second mating hole that mates with the operating rod. The operating rod passes through the first mating hole and the second mating hole and is fixed by the fixing member.

[0009] In one embodiment, the operating lever sequentially includes an operating part, a connecting part, and a fixing part. The fixing part passes through the first mating hole and engages with the second mating hole and is fixed by the fixing member. The connecting part passes through the first mating hole and engages with the first mating hole. The diameter of the operating part is larger than the diameter of the connecting part, and the diameter of the connecting part is larger than the diameter of the fixing part.

[0010] In one embodiment, the connecting portion is threadedly engaged with the first mating hole, and the fixing portion is threadedly engaged with the fixing member, wherein the helical directions of the threads of the connecting portion and the fixing portion are opposite.

[0011] In one embodiment, there are two fasteners, both located on the same side of the limiting member, and the end face of the second mating hole on the limiting member near the fastener has a receiving groove for accommodating at least one fastener.

[0012] In one embodiment, the base has a through groove, and the multi-functional three-coordinate fixture also includes a slider disposed on the through groove. The slider and the limiting member are disposed on opposite sides of the through groove and are connected through the through groove so that the limiting member can slide relative to the base in the through groove.

[0013] The first support member and the second support member are fixedly installed at opposite ends of the through groove on the base.

[0014] In one embodiment, the first support member and the second support member are detachably connected to the base, and the slider and the limiting member are detachably connected.

[0015] In one embodiment, the support column of the first support member has a first mounting groove on the side near the limiting member, and rounded corner grooves communicating with the first mounting groove are provided at the corners of the first mounting groove.

[0016] In one embodiment, the limiting post of the limiting member and the clamping post of the second support member are provided with second mounting grooves on their adjacent sides, and the second mounting grooves are tapered.

[0017] The technical solution of this utility model adopts two support members and one limiting member, and defines two clamping positions in a movable manner, which are used to clamp large valve bodies and small parts respectively, so as to realize the corresponding clamping of different structural parts of the servo valve. This allows one fixture to be adapted to multiple structures of the entire servo valve. Therefore, there is no need to change the fixture when performing coordinate measuring machine, making the operation simpler. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 Exploded view of an embodiment of the multifunctional three-coordinate clamp provided by this utility model;

[0020] Figure 2 A schematic diagram of the structure of the first support member in one embodiment of the multifunctional three-coordinate clamp provided by this utility model;

[0021] Figure 3 A schematic diagram of the limiting member and the second support member in one embodiment of the multifunctional three-coordinate clamp provided by this utility model;

[0022] Figure 4 A partial structural schematic diagram of an embodiment of the multifunctional coordinate measuring machine provided by this utility model;

[0023] Figure 5 A schematic diagram of the first clamping position in one embodiment of the multifunctional three-coordinate clamp provided by this utility model;

[0024] Figure 6 A schematic diagram of the second clamping position in one embodiment of the multifunctional three-coordinate clamp provided by this utility model.

[0025] Explanation of icon numbers:

[0026] 1. Multifunctional coordinate measuring machine fixture;

[0027] 11. First support component; 12. Limiting component; 13. Second support component; 14. Base; 15. Operating lever; 16. Fixing component; 17. Slider;

[0028] 111. Support column; 112. First mating hole; 113. First mounting groove; 114. Rounded corner groove; 121. Limiting column; 122. Second mating hole; 123. Receiving groove; 131. Clamping column; 132. Second mounting groove; 151. Operating part; 141. Through groove; 152. Connecting part; 153. Fixing part.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this utility model, such directional indication is only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Furthermore, the use of "and / or" or "and / or" throughout the text includes three parallel options; for example, "A and / or B" includes option A, option B, or options where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] After the servo valve components are manufactured, their accuracy needs to be tested to determine whether the dimensions are qualified. The tool used to test the accuracy of these small parts is usually a coordinate measuring machine (CMM). The coordinate measuring machine fixture is a special fixture used for the coordinate measuring machine. It is mainly used to fix and position the workpiece being measured to ensure stability and accuracy during the measurement process.

[0034] However, due to the relatively simple and specialized structure of coordinate measuring machine (CMM) fixtures, a single fixture is usually only suitable for the inspection of one type or class of parts, meaning there is only one inspection position. This results in the need to use multiple fixtures to inspect different parts of a servo valve, requiring frequent fixture changes, making the operation cumbersome and its versatility low.

[0035] This utility model proposes a multifunctional three-coordinate clamp 1.

[0036] Please combine Figures 1-3 In one embodiment of the present invention, the multi-functional coordinate measuring machine 1 is used to clamp the valve body and / or various components of a servo valve. The multi-functional coordinate measuring machine 1 includes a base 14, and a first support member 11, a limiting member 12 and a second support member 13 are sequentially arranged on the same side of the base 14. The first support member 11 protrudes at opposite ends to form a support column 111, the limiting member 12 protrudes in the middle to form a limiting column 121, and the second support member 13 protrudes in the middle to form a clamping column 131.

[0037] When the limiting member 12 and the first support member 11 approach each other, the two support posts 111 of the first support member 11 and the limiting post 121 of the limiting member 12 define the first clamping position. When the limiting member 12 and the second support member 13 approach each other, the limiting post 121 of the limiting member 12 and the clamping post 131 of the second support member 13 define the second clamping position.

[0038] It should be noted that the two support columns 111 of the first support member 11 and the limiting column 121 of the limiting member 12 form a triangular structure. When they are close to each other, they can firmly clamp large structures such as the servo valve body. Furthermore, the two support columns 111 of the first support member 11 are hollowed out, which can avoid some structures on the valve body, making the valve body fit the support columns 111 more closely.

[0039] In one embodiment, the widths of the first support member 11, the limiting member 12, and the second support member 13 are all the same as the width of the base 14, and the limiting post 121 of the limiting member 12 and the clamping post 131 of the second support member 13 are both located in the middle of the width direction.

[0040] It should be noted that the width of the first support member 11, the limiting member 12, and the second support member 13 can be wider or narrower than the base 14 without affecting the measurement. However, this may result in the base 14 being too large or too small, reducing the ease of use.

[0041] The limiting post 121 is located in the middle and forms an isosceles triangle with the two support posts 111 of the first support member 11, which makes the valve body more secure when clamped.

[0042] The clamping post 131 and the limiting post 121 of the second support member 13 need to be on the same axis to form the second clamping position. Therefore, setting the clamping post 131 in the middle can make the clamping accuracy of the second clamping position higher and the clamping more stable.

[0043] In one embodiment, the multi-functional coordinate measuring machine 1 further includes an operating rod 15 and a fixing member 16. The first support member 11 has a first mating hole 112 that mates with the operating rod 15, and the limiting member 12 has a second mating hole 122 that mates with the operating rod 15. The operating rod 15 passes through the first mating hole 112 and the second mating hole 122 and is fixed by the fixing member 16.

[0044] It should be noted that both the first mating hole 112 and the second mating hole 122 are opened at the end of the first support member 11 and the limiting member 12 near the base 14. The operating rod 15 passes through the first mating hole 112 and the second mating hole 122 in sequence, and is fixed by cooperating with the fixing member 16 at the second mating hole 122, so that the end face of the operating rod 15 is relatively stationary with respect to the limiting member 12, and can move together with the first support member 11 to adjust the mating position in the first mating hole 112.

[0045] Specifically, in this embodiment, the operating lever 15 sequentially includes an operating part 151, a connecting part 152, and a fixing part 153. The fixing part 153 passes through the first mating hole 112 and is fixed at the second mating hole 122 by a fixing member 16. The connecting part 152 passes through the first mating hole 112 and mates with the first mating hole 112. The diameter of the operating part 151 is larger than the diameter of the connecting part 152, and the diameter of the connecting part 152 is larger than the diameter of the fixing part 153.

[0046] It should be noted that the operating part 151 is the part held by the user to adjust the extension progress, and the connecting part 152 is engaged with the first mating hole 112. The specific mating methods include sliding mating, threaded mating, bearing mating and other methods, which are not limited here.

[0047] The fixing part 153 mates with the second mating hole 122. The specific mating methods include sliding mating, threaded mating, bearing mating, etc., which are not limited here. However, the end of the fixing part 153 needs to be connected to the fixing member 16 to achieve the fixing function. The specific connection method is threaded connection.

[0048] Specifically, in a specific embodiment of this utility model, the connecting part 152 is threadedly engaged with the first mating hole 112, and the fixing part 153 is threadedly engaged with the fixing member 16.

[0049] In one embodiment, the threads of the connecting portion 152 and the fixing portion 153 are in opposite directions.

[0050] Specifically, the connecting part 152 of the operating lever 15 has a forward thread, and the fixing part 153 has a reverse thread.

[0051] It should be noted that the two thread settings are to prevent the fixed part 153 from loosening relative to the limiting part 12 when the operating lever 15 is rotated and pushed, thereby affecting the clamping stability of the clamping position on the servo valve components.

[0052] Understandably, the forward-threaded connection of the connecting part 152 and the reverse-threaded connection of the fixing part 153 may present assembly difficulties when passing through the first mating hole 112. Therefore, by reducing the diameter of the fixing part 153, the diameter of the connecting part 152 is made larger than the diameter of the fixing part 153, that is, the diameter of the first mating hole 112 is larger than the diameter of the fixing part 153, thereby ensuring that the thread of the fixing part 153 will not contact the first mating hole 112, thereby improving assembly efficiency.

[0053] In one embodiment, there are two fasteners 16, both of which are located on the same side of the limiting member 12, and the end face of the second mating hole 122 on the limiting member 12 near the fastener 16 is provided with a receiving groove 123 for accommodating at least one fastener 16.

[0054] Specifically, the fastener 16 is a nut, and both nuts are located on the same side of the limiting member 12 and are fixedly connected to one end of the fixing part 153 by threads.

[0055] It should be noted that one of the two nuts serves a fixing function, while the other serves a tightening function, further enhancing the connection stability of the fixing part 153 end.

[0056] Furthermore, even if the two fasteners 16 are set at the ends of the fixing part 153 without gap, there will still be a certain thickness. Therefore, if the parts to be clamped in the second clamping position are too small, this thickness will seriously affect the tightness of the fit, making it impossible for the limiting member 12 and the second support member 13 to clamp the small parts securely. Therefore, it is necessary to open a receiving groove 123 to accommodate the fasteners 16, so that the gap between the limiting member 12 and the second support member 13 is as small as possible, so as to accommodate more small parts.

[0057] Please combine Figure 1 and Figure 4 In one embodiment, a through groove 141 is provided on the base 14. The multi-functional three-coordinate fixture 1 also includes a slider 17 disposed on the through groove 141. The slider 17 and the limiting member 12 are disposed on opposite sides of the through groove 141 and are connected through the through groove 141 so that the limiting member 12 can slide relative to the base 14 in the through groove 141.

[0058] It should be noted that the through groove 141 is provided to facilitate the installation of the fixing member 16 and to ensure that the limiting member 12 can slide on the base 14. The first support member 11 and the second support member 13 are fixedly installed on the base 14 at opposite ends of the through groove 141. The length of the through groove 141 is also the sliding range of the limiting member 12.

[0059] Specifically, the slider 17 is detachably connected to the limiting member 12, which facilitates quick replacement when the limiting member 12 no longer meets the usage conditions or is old and damaged.

[0060] In one embodiment, the first support member 11 and the second support member 13 are detachably connected to the base 14.

[0061] Understandably, the first support 11 and the second support 13 are detachably connected to the base 14, which facilitates the use of different models of support components and makes it convenient to replace them when they fail to meet the usage requirements.

[0062] Please combine Figures 1-3 , Figures 5-6 In one embodiment, the support column 111 of the first support member 11 has a first mounting groove 113 on the side near the limiting member 12, and rounded corner grooves 114 communicating with the first mounting groove 113 are provided at the corners of the first mounting groove 113.

[0063] It should be noted that the first mounting groove 113 is opened on the side of the first support member 11 near the limiting member 12, and the two support columns 111 are close to each other at one side corner, so that the first mounting groove 113 can be embedded in the support column 111. The specific embedding depth is based on the thickness of the actual product clamping part and is not limited here.

[0064] Specifically, at the bottom end of the first mounting groove 113, that is, the end near the base 14, a rounded corner groove 114 is provided. The rounded corner groove 114 is adjacent to the first mounting groove 113 and has a certain diameter, which is convenient to accommodate the top corner of different types of valve bodies, or the rounded arc edge at the top corner, so that the edge of the valve body will not conflict with the edge of the first mounting groove 113 and can be better embedded in the first mounting groove 113.

[0065] In one embodiment, the limiting post 121 of the limiting member 12 and the clamping post 131 of the second support member 13 are provided with second mounting grooves 132 on their adjacent sides, and the second mounting grooves 132 are tapered.

[0066] It should be noted that the second mounting slot 132 is used to clamp small parts and for coordinate measuring machine (CMM) measurement. Therefore, the second mounting position is smaller than the first mounting position and requires symmetrical force to stably clamp the small parts. By setting the taper of the second mounting slot 132, the small parts can be partially accommodated in the tapered groove. The inner wall of the tapered groove can balance the weight of the parts while applying radially symmetrical force to ensure clamping force.

[0067] Specifically, in this embodiment of the present invention, the connecting part 152 of the operating rod 15 is controlled to move forward and backward in the first mating hole 112 in the first support member 11 by rotating the operating rod 15, thereby controlling the extension length relative to the first support member 11. Since the thread helix direction of the connecting part 152 of the operating rod 15 and the fixing part 153 is opposite, the fixing part 153 of the operating rod 15 and the fixing member 16 are not affected at this time, thereby pushing the limiting member 12 to slide on the base 14, so as to move away from or closer to the first support member 11, that is, to move closer to or away from the second support member 13.

[0068] The mounting groove of the first support member 11 is used to install the valve body of the servo valve. By rotating the operating rod 15, the limiting member 12 is brought close to the first support member 11 to complete the clamping of the servo valve body. The rounded corner of the mounting groove is adapted to the right angle or rounded corner of the valve body, which has better adaptability and tighter clamping of the valve body.

[0069] Understandably, valve bodies clamped using this method have more exposed structures in the working position, making it easier for coordinate measuring machines to perform precise measurements.

[0070] The second mounting groove 132 on the second support member 13 and the limiting member 12 is used to clamp small parts. By screwing in the operating rod 15, the limiting member 12 is brought close to the second support member 13 to complete the clamping of the small parts. The smaller the clamping area of ​​the limiting post 121 and the clamping post 131 on the parts, that is, the smaller the second mounting groove 132, the more exposed structures of the parts, and the more convenient it is to measure the small parts.

[0071] Understandably, by screwing the operating lever 15 in or out, the clamping force on the valve body or components can be precisely controlled to prevent excessive clamping force from damaging or even destroying the clamping parts.

[0072] Servo valves of different sizes can be adapted to fit different types of servo valves by replacing the fixtures with fixtures of the corresponding sizes or by changing the dimensions of the components of the existing fixtures.

[0073] The technical solution of this utility model adopts two support members and one limiting member 12, and defines two clamping positions by moving them, which are used to clamp large valve bodies and small parts respectively, so as to realize the corresponding clamping of different structural parts of the servo valve. This allows one fixture to adapt to multiple structures of the entire servo valve. Therefore, there is no need to change the fixture when performing coordinate measuring machine, making the operation simpler.

[0074] It should be understood that the terms "one embodiment" or "one example" throughout the specification mean that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in one example" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0075] In various embodiments of this utility model, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of this utility model embodiment.

[0076] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It is particularly important to note that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0077] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-functional three-coordinate clamp for clamping the valve body and / or components of a servo valve, characterized in that: The multi-functional three-coordinate fixture includes a base, on which a first support member, a limiting member and a second support member are sequentially arranged on the same side. The first support member has protrusions at both ends to form a support column, the limiting member has a protrusion in the middle to form a limiting column, and the second support member has a protrusion in the middle to form a clamping column. When the limiting member and the first support member approach each other, the two support posts of the first support member and the limiting post of the limiting member define a first clamping position. When the limiting member and the second support member approach each other, the limiting post of the limiting member and the clamping post of the second support member define a second clamping position.

2. The multi-functional coordinate measuring machine fixture as described in claim 1, characterized in that: The widths of the first support member, the limiting member, and the second support member are all the same as the width of the base. The limiting post of the limiting member and the clamping post of the second support member are both located in the middle of the width direction.

3. The multi-functional coordinate measuring machine fixture as described in claim 1, characterized in that: The multi-functional three-coordinate fixture also includes an operating rod and a fixing member. The first support member has a first mating hole that mates with the operating rod, and the limiting member has a second mating hole that mates with the operating rod. The operating rod passes through the first mating hole and the second mating hole and is fixed by the fixing member.

4. The multi-functional coordinate measuring machine fixture as described in claim 3, characterized in that: The operating lever sequentially includes an operating part, a connecting part, and a fixing part. The fixing part passes through the first mating hole and engages with the second mating hole and is fixed by the fixing member. The connecting part passes through the first mating hole and engages with the first mating hole. The diameter of the operating part is larger than the diameter of the connecting part, and the diameter of the connecting part is larger than the diameter of the fixing part.

5. The multi-functional coordinate measuring machine fixture as described in claim 4, characterized in that: The connecting part is threadedly engaged with the first mating hole, and the fixing part is threadedly engaged with the fixing member, wherein the helical directions of the threads of the connecting part and the fixing part are opposite.

6. The multi-functional coordinate measuring machine fixture as described in claim 3, characterized in that: The number of the fixing members is two, both of which are located on the same side of the limiting member, and the end face of the second mating hole on the limiting member near the fixing member is provided with a receiving groove to accommodate at least one fixing member.

7. The multi-functional coordinate measuring machine fixture as described in claim 1, characterized in that: The base has a through groove, and the multi-functional three-coordinate fixture also includes a slider disposed on the through groove. The slider and the limiting member are disposed on opposite sides of the through groove and are connected through the through groove so that the limiting member can slide relative to the base in the through groove. The first support member and the second support member are fixedly installed at opposite ends of the through groove on the base.

8. The multi-functional three-coordinate fixture as described in claim 7, characterized in that: The first support member and the second support member are detachably connected to the base, and the slider and the limiting member are detachably connected.

9. The multi-functional coordinate measuring machine fixture as described in claim 1, characterized in that: The first support member has a first mounting groove on the side near the limiting member, and rounded corner grooves communicating with the first mounting groove are provided at the corners of the first mounting groove.

10. The multifunctional three-coordinate clamp as described in claim 1, characterized in that: The limiting post of the limiting member and the clamping post of the second support member are both provided with second mounting grooves on their adjacent sides, and the second mounting grooves are both tapered.

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