CN216160151U

CN216160151U - Measuring tool for linear motor elastic element

Info

Publication number: CN216160151U
Application number: CN202122293387.2U
Authority: CN
Inventors: 张竹君; 李栋; 王磊
Original assignee: Lingxian Technology Dongtai Co ltd
Current assignee: Lingxian Technology Dongtai Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-04-01
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a measuring jig for a linear motor elastic element, which comprises a base, a measuring table and a force-adjusting jacking assembly, wherein the measuring table and the force-adjusting jacking assembly are arranged on the base, a first positioning groove for placing an element to be measured is arranged at the top of the measuring table, and a positioning assembly and a rotating cavity which are matched with an arc-shaped part at the end part of the element to be measured are arranged at one end in the first positioning groove. The positioning assembly can perform reference positioning and the like on the end arc part of the element to be tested, the force-adjusting jacking assembly is matched with the positioning assembly to elastically jack the end arc part of the element to be tested, and the end arc part of the element to be tested rotates along the rotating cavity, so that the element to be tested is integrally positioned and fixedly placed in the first positioning groove, the element to be tested is more accurately tested, the operation is convenient and rapid, the positioning is accurate, the measurement deviation and the like are not easy to cause, the stability and the reliability are high, the efficiency, the quality and the yield of products are improved, the production cost is reduced, and the application and the development of the products are expanded.

Description

Measuring tool for linear motor elastic element

Technical Field

The present invention relates to a measuring device for a linear motor, and more particularly, to a measuring tool for an elastic element of a linear motor.

Background

Along with the rapid development of science and technology, linear motor is more and more used for on electronic product such as cell-phone, panel computer, game paddle, medical instrument, VR (virtual reality product), and linear motor can provide tactile feedback effect etc. for electronic product through the vibration, prevents that the noise that comes from electronic product from disturbing other people. The linear motor realizes simple harmonic vibration through elastic elements such as spring plates or springs, and therefore the elastic elements are one of important parts of the linear motor. However, most of the existing linear motor spring elements are nonstandard and irregular in structure and size, the existing measuring jig cannot accurately position and the like, measuring deviation and the like are easily caused, measuring accuracy and efficiency are low, quality and yield of products are affected, and production cost is increased.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a measuring tool for an elastic element of a linear motor, which can solve at least one of the above technical problems, and the technical solution of the present invention is as follows:

the utility model provides a tool of measurationing for linear motor elastic element, including base and the survey table and the accent power roof pressure subassembly of setting on the base, the top of survey table is provided with the first locating slot that is used for placing the element that awaits measuring, one end in the first locating slot is provided with the tip arc subtotal rotation chamber that is used for with the element that awaits measuring matched with of tip arc part, accent power roof pressure subassembly is located one side of survey table, accent power roof pressure subassembly can cooperate with the locating component with the tip arc part of the element that awaits measuring of elasticity roof pressure, and the tip arc part of the element that awaits measuring can be followed and rotated the chamber so that the element that awaits measuring global positioning fixes in first locating slot.

In some embodiments, one side of the first positioning groove close to the force-adjusting jacking assembly is open, a profiling positioning surface for matching with the element to be tested is arranged on the side surface of the first positioning groove far away from the force-adjusting jacking assembly, and a profiling positioning portion for matching with the element to be tested is arranged on the bottom surface of the first positioning groove.

In some embodiments, the bottom surface of the first positioning groove is provided with a first magnetic member and a first hole body for placing the first magnetic member.

In some embodiments, the positioning assembly comprises a first positioning column and a rotary positioning piece, a first positioning surface matched with the rotary cavity is arranged on the first positioning column, the end arc-shaped part of the element to be detected can abut against the first positioning surface to be positioned, and a first boss used for being inserted into a corresponding groove body of the element to be detected is arranged on the rotary positioning piece.

In some embodiments, the first positioning column is connected with the rotary positioning piece in a clamping manner, a first clamping groove matched with the rotary positioning piece is arranged on the first positioning column, and a second hole body for accommodating the first positioning column and the rotary positioning piece is arranged in the first positioning groove.

In some embodiments, the second hole body penetrates through the base in the vertical direction, the bottom of the first positioning column is provided with a first limiting block, and the bottom of the second hole body is provided with a first groove body matched with the first limiting block.

In some embodiments, the pressure-adjusting and pressing assembly includes a positioning pin and a first elastic member cooperating with the positioning pin, wherein the first elastic member enables the positioning pin to elastically press the end portion arc portion of the device under test.

In some embodiments, one end of the positioning thimble close to the measuring table is provided with a second boss for inserting into a corresponding slot of the element to be measured.

In some embodiments, the first elastic element is a spring sleeved on the positioning thimble, the positioning thimble is provided with a first shoulder matched with one end of the first elastic element, and the base is provided with a first chute matched with the first shoulder and a first cover plate matched with the first chute, so that the first shoulder and the first elastic element are limited in the first chute.

In some embodiments, a first through hole for passing the positioning thimble is formed in the first cover plate, a second through hole for passing the positioning thimble is formed in the bottom surface of the first sliding groove, the first cover plate is located at one end, far away from the measuring table, of the base, one end of the first elastic piece is pressed against the first shoulder, the other end of the first elastic piece is pressed against the first cover plate, one end, far away from the second boss, of the positioning thimble passes through the first through hole and is provided with a first pull ring, and a first gasket is arranged between the first shoulder and the bottom surface.

The utility model has the beneficial effects that: the device to be tested is placed along the first positioning groove at the top of the measuring table, the end arc part of the device to be tested is placed in the rotating cavity of the first positioning groove, the positioning assembly is used for conducting reference fixing and the like on the end arc part of the device to be tested, the force adjusting jacking assembly is matched with the positioning assembly to elastically jack the end arc part of the device to be tested, then the end arc part of the device to be tested rotates along the rotating cavity, so that the device to be tested is integrally and fixedly placed in the first positioning groove, the device to be tested is convenient and rapid to test more accurately, the positioning is accurate, measurement deviation and the like are not easy to cause, the stability and the reliability are high, the device is suitable for detecting non-standard and irregular linear motor spring elements, such as linear motors in electronic products like mobile phones, tablet computers, game handles, medical instruments, VR (virtual reality products) and the like, the application range is wide, and the efficiency, the quality and the yield of the products are improved, reduces the production cost and enlarges the application and development of the product.

In addition, in the technical scheme of the utility model, the technical scheme can be realized by adopting the conventional means in the field unless being particularly described.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a measuring tool for a linear motor elastic element according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a measuring tool for a linear motor elastic element according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a measuring tool for a linear motor elastic element according to an embodiment of the present invention.

Fig. 4 is an exploded view of a measuring tool for a linear motor elastic element according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a measuring tool for a linear motor elastic element according to an embodiment of the present invention.

FIG. 6 is an enlarged view of a portion of FIG. 5A in accordance with one embodiment of the present invention.

Fig. 7 is a partial cross-sectional view of a measuring tool for a linear motor elastic element according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a base and a measuring table according to an embodiment of the utility model.

FIG. 9 is an enlarged view of a portion of FIG. 8 at B, in accordance with one embodiment of the present invention.

The reference number in the drawing indicates that the base 1, the first groove body 11, the first sliding groove 12, the first cover plate 13, the first through hole 131, the second through hole 14, the measuring table 2, the first positioning groove 21, the rotating cavity 22, the profiling positioning surface 23, the profiling positioning portion 24, the first hole body 25, the second hole body 26, the force-adjusting jacking assembly 3, the positioning thimble 31, the second boss 311, the first shoulder 312, the first elastic element 32, the first gasket 33, the first pull ring 34, the positioning assembly 4, the first positioning column 41, the first positioning surface 411, the first clamping groove 412, the first stopper 413, the rotary positioning element 42, the first boss 421, the element to be measured 5, and the first magnetic element 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating some embodiments of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "both ends", "both sides", "bottom", "top", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "upper," "lower," "primary," "secondary," and the like are used for descriptive purposes only and may be used for purposes of simplicity in more clearly distinguishing between various components and not to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are used broadly and can be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected through the inside of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 9, schematically showing a measuring jig for a linear motor elastic element according to the present invention, the measuring jig includes a base 1, a measuring table 2 and a pressure-adjusting pressing assembly 3 are disposed on the base 1, the pressure-adjusting pressing assembly 3 is disposed on one side of the measuring table 2, a first positioning groove 21 is disposed on the top of the measuring table 2, the first positioning groove 21 is used for placing a to-be-measured element 5, the to-be-measured element 5 is a linear motor elastic element, a positioning assembly 4 and a rotating cavity 22 are disposed at one end in the first positioning groove 21, the positioning assembly 4 and the rotating cavity 22 are used for matching with an end portion arc portion of the to-be-measured element 5, the end portion arc portion of the to-be-measured element 5 is subjected to reference setting in the rotating cavity 22 of the first positioning groove 21 through the positioning assembly 4, the pressure-adjusting pressing assembly 3 is matched with the positioning assembly 4, and the pressure-adjusting pressing assembly 3 can elastically press the end portion arc portion of the to-be-measured element 5.

In the using process, as shown in fig. 1, the element 5 to be tested is firstly placed along the first positioning groove 21 at the top of the measuring table 2, the end arc part of the element 5 to be tested is placed in the rotating cavity 22 of the first positioning groove 21, the end arc part of the element 5 to be tested is subjected to reference setting through the positioning assembly 4, the force adjusting jacking assembly 3 is matched with the positioning assembly 4, the force adjusting jacking assembly 3 elastically jacks the end arc part of the element 5 to be tested, then the end arc part of the element 5 to be tested rotates along the rotating cavity 22, as shown in fig. 2, the element 5 to be tested is integrally positioned and fixedly placed in the first positioning groove 21, the element 5 to be tested is convenient and accurate to test, the operation is convenient and rapid, the positioning is accurate, the measurement deviation is not easy to cause, the elastic jacking of the force adjusting jacking assembly 3 can be used for linear motor spring elements with various sizes, and is suitable for non-standard, The detection of irregular linear motor spring elements, such as linear motors in electronic products like mobile phones, tablet computers, game pads, medical instruments, VR (virtual reality products), etc., has a wide application range.

One side of the first positioning groove 21 close to the force-adjusting jacking component 3 is open, so that the component 5 to be tested can be conveniently taken and placed, the force-adjusting jacking component 3 can be avoided, and the structure is simpler and more reliable. The side face, far away from the pressure adjusting and jacking assembly 3, of the first positioning groove 21 is provided with a profiling positioning surface 23 used for being matched with the element to be measured 5, the bottom face of the first positioning groove 21 is provided with a profiling positioning portion 24 used for being matched with the element to be measured 5, the shapes of the profiling positioning surface 23 and the profiling positioning portion 24 are consistent with the shape of the element to be measured 5, the profiling positioning surface 23 and the profiling positioning portion 24 can be cambered surfaces or curved surfaces and the like, one side of the element to be measured 5 abuts against the profiling positioning surface 23 for positioning, and the corresponding surface of the element to be measured 5 is pressed on the profiling positioning portion 24 on the bottom face of the first positioning groove 21 for positioning and fixing the element to be measured 5 in the first positioning groove 21 in a gapless matching mode basically, so that the accuracy is higher, and the positioning is more stable and reliable.

The end of the first positioning groove 21 far away from the positioning component 4 and the rotating cavity 22 can also be opened, so that the operation is simpler and more convenient. The contoured detent 24 may extend all the way to an edge of the first detent 21 remote from the detent assembly 4 and the rotation chamber 22.

Be provided with first magnetism spare 6 on the bottom surface of first constant head tank 21, first magnetism spare 6 can be one, two or a plurality ofly, the quantity of first magnetism spare 6, size and arrange etc. and decide according to particular case, first magnetic substance can be magnet, magnet steel or other suitable magnets among the prior art, because linear motor spring element all has magnetism usually, so the element 5 that awaits measuring can be inhaled to 6 magnetism of first magnetism spare, make the element 5 that awaits measuring fix on first constant head tank 21 more firmly. The bottom surface of the first positioning groove 21 is provided with a first hole 25, the first magnetic member 6 is arranged in the first hole 25, and the top surface of the first magnetic member 6 is basically flush with the bottom surface of the first positioning groove 21, so that the structure is more compact and stable.

The positioning assembly 4 comprises a first positioning column 41 and a rotary positioning piece 42, the first positioning column 41 is located at the end of the first positioning groove 21, the rotary positioning piece 42 is located at one side, away from the pressure-adjusting jacking assembly 3, of the first positioning groove 21, a first positioning surface 411 matched with the rotary cavity 22 is arranged on the first positioning column 41, the end arc part of the element to be detected 5 can be abutted against the first positioning surface 411 for positioning, such as a reference and the like, one side of the end of the element to be detected 5 is abutted against the rotary positioning piece 42, the end arc part of the element to be detected 5 rotates along the rotary cavity 22 in the process, the end arc part of the element to be detected 5 is abutted against the first positioning surface 411, and the positioning assembly is more stable and reliable. Be provided with first boss 421 on gyration setting element 42, first boss 421 are arranged in inserting the corresponding cell body of the component 5 that awaits measuring, and one side of the component 5 tip that awaits measuring supports and leans on gyration setting element 42, and in first boss 421 inserted the corresponding cell body of the component 5 that awaits measuring, and the component 5 that awaits measuring rotates along first boss 421, and the motion is more stable, reliable, and it is more convenient to operate, and positioning accuracy is higher, and the structure is more firm.

The first positioning column 41 is connected with the rotary positioning member 42 in a clamping manner, and the first positioning column 41 is provided with a first clamping groove 412 matched with the rotary positioning member 42, so that the structure is simple, the connection is convenient, and the like. The first positioning groove 21 is internally provided with a second hole 26 for arranging the first positioning column 41 and the rotary positioning piece 42, so that the structure is more compact and stable. The second hole 26 penetrates through the base 1 along the vertical direction, the first limiting block 413 is arranged at the bottom of the first positioning column 41, the size of the first limiting block 413 is larger than the diameter of the second hole 26, and the first groove body 11 matched with the first limiting block 413 is arranged at the bottom of the second hole 26, so that the operation is more convenient, and the fixing device is more stable and firm.

The force-adjusting jacking assembly 3 comprises a positioning thimble 31 and a first elastic piece 32, the first elastic piece 32 is matched with the positioning thimble 31, the first elastic piece 32 corresponds to the rotating cavity 22 of the first positioning groove 21, the element 5 to be tested is positioned between the positioning thimble 31 and the rotating positioning piece 42 of the positioning assembly 4, the positioning thimble 31 is stressed to compress the first elastic piece 32, so that the positioning thimble 31 can be far away from the rotating cavity 22, the end arc part of the element 5 to be tested is arranged in the rotating cavity 22 and matched with the positioning assembly 4, after the positioning thimble 31 is loosened, the first elastic piece 32 can enable the positioning thimble 31 to elastically jack the end arc part of the element 5 to be tested in the rotating cavity 22 through elastic recovery, the structure is simple and stable, and the operation is convenient.

One end of the positioning thimble 31 close to the measuring table 2 is provided with a second boss 311, the second boss 311 is used for being inserted into a corresponding groove of the element 5 to be measured, the second boss 311 and the first boss 421 have the same axle center, and the second boss 311 and the first boss 421 are symmetrically positioned at two sides of the rotating cavity 22. Thereby more accurately and stably pressing the element 5 to be tested. The end arc part of the element to be tested 5 is arranged in the rotating cavity 22 of the first positioning groove 21, the end arc part of the element to be tested 5 is abutted against the first positioning surface 411, one side of the end part of the element to be tested 5 is abutted against the rotary positioning piece 42, the first boss 421 is inserted into the corresponding groove body of the element to be tested 5, when the positioning thimble 31 is abutted against the element to be tested 5, the second boss 311 is simultaneously inserted into the corresponding groove body of the element to be tested 5, the element to be tested 5 rotates along the first boss 421 and the second boss 311, the movement is more stable and reliable, the operation is more convenient, the positioning precision is higher, and the structure is more stable.

One end of the positioning thimble 31 close to the measuring table 2 may be of a stepped structure, that is, the diameter of the second boss 311 is the smallest, the stepped structure may be of one stage, two stages or multiple stages, and the measuring table 2 may also be provided with an avoiding groove matched with the positioning thimble 31.

The first elastic element 32 is a spring sleeved on the positioning thimble 31, the positioning thimble 31 is provided with a first shoulder 312 matched with one end of the first elastic element 32, the base 1 is provided with a first chute 12 matched with the first shoulder 312 and a first cover plate 13 matched with the first chute 12, the first shoulder 312 and the first elastic element 32 are located in the first chute 12, and the first cover plate 13 covers the first chute 12, so that the first shoulder 312 and the first elastic element 32 are limited in the first chute 12. The first cover plate 13 may be located at an end of the base 1 away from the measuring table 2, an end of the first elastic element 32 away from the first shoulder 312 is pressed against the first cover plate 13, the positioning thimble 31 is forced to move the first shoulder 312 along the first sliding slot 12, and the first elastic element 32 is compressed, and after the positioning thimble 31 is released, the first elastic element 32 pushes the positioning thimble 31 to elastically press the device 5 to be measured by elastic recovery.

The first elastic element 32 is a spring sleeved on the positioning thimble 31, the first cover plate 13 is located at one end of the base 1 far away from the measuring table 2, a first through hole 131 for the positioning thimble 31 to pass through is arranged on the first cover plate 13, a second through hole 14 for the positioning thimble 31 to pass through is arranged on the bottom surface of the first sliding chute 12, the diameter of the first shoulder 312 is larger than that of the second through hole 14, the diameter of the first elastic element 32 is larger than that of the first through hole 131, one end of the first elastic element 32 is pressed on the first shoulder 312, and the other end of the first elastic element is pressed on the first cover plate 13. In addition, the first cover plate 13 may also be located at one end of the base 1 close to the measuring table 2, the first cover plate 13 may also be removed, one end of the positioning thimble 31 far from the second boss 311 is provided with a limiting block, the first sliding groove 12 penetrates through the base 1, the first sliding groove 12 is located at the limiting block and the first shoulder 312, the diameter of the first shoulder 312 may be greater than the diameter of the first sliding groove 12, the first elastic member 32 may be located between the first shoulder 312 and the base 1, one end of the first elastic member 32 is pressed against the first shoulder 312 and the other end thereof is pressed against the outer side surface of the base or the bottom surface of the first sliding groove 12, the first elastic member 32 may also be located between the limiting block and the base 1, one end of the first elastic member 32 is pressed against the limiting block and the other end thereof is pressed against the outer side surface of the base or the bottom surface of the first sliding groove 12.

One end of the positioning thimble 31 far away from the second boss 311 passes through the first through hole 131 and is provided with a first pull ring 34, the first pull ring 34 can also be a handle, a limiting block, a limiting nut and the like, the first pull ring 34 is generally in threaded connection with one end of the positioning thimble 31 far away from the second boss 311, and the operation is more convenient. A first gasket 33 is further arranged between the first shoulder 312 and the bottom surface, one, two or more first gaskets 33 are sequentially overlapped and sleeved on the positioning thimble 31, and the pressure of the positioning thimble 31 on the element to be measured 5 can be adjusted by adjusting the number of the first gaskets 33, so that the positioning thimble is more stable and reliable. The first cover plate 13 can also be provided with a boss matched with the first elastic piece 32, one end of the first elastic piece 32 is pressed against the boss, the first through hole 131 is positioned on the boss, and the base 1 can also be provided with a groove body matched with the first cover plate 13, so that the structure is more compact and stable.

Compared with the prior art, the utility model has the advantages that: the positioning thimble 31 is stressed to compress the first elastic part 32, so that the positioning thimble 31 can be far away from the rotating cavity 22, the element 5 to be measured is placed along the first positioning groove 21 at the top of the measuring table 2, the end arc part of the element 5 to be measured is placed in the rotating cavity 22 of the first positioning groove 21, the end arc part of the element 5 to be measured is subjected to reference and the like through the positioning component 4, the end arc part of the element 5 to be measured is abutted against the first positioning surface 411 for positioning, one side of the end part of the element 5 to be measured is abutted against the rotary positioning component 42, the first boss 421 is inserted into the corresponding groove body of the element 5 to be measured, after the positioning thimble 31 is released, the first elastic part 32 is elastically restored, so that the positioning thimble 31 elastically abuts against the end arc part of the element 5 to be measured in the rotating cavity 22, the second boss 311 is simultaneously inserted into the corresponding groove body of the element 5 to be measured, and the end arc part of the element 5 to be measured is centered on the first boss 421 and the second boss 311 in the rotating cavity 22 Rotating, one side of the element 5 to be detected is abutted against the profiling positioning surface 23 for positioning, the corresponding surface of the element 5 to be detected is pressed on the profiling positioning part 24 at the bottom surface of the first positioning groove 21 for positioning, the first magnetic part 6 at the bottom surface of the first positioning groove 21 simultaneously attracts the element 5 to be detected, so that the element 5 to be detected is integrally positioned and fixedly placed in the first positioning groove 21, the element 5 to be detected is more accurately tested, the operation is convenient and rapid, the multi-structure multi-positioning is realized, the positioning is accurate, the element 5 to be detected is positioned and fixed in the first positioning groove 21 in a basically gapless matching manner, the measurement deviation and the like are not easily caused, the structure is simple, compact and stable, the volume is small, the stability and the reliability are high, the elastic jacking of the force adjusting jacking component 3 can be used for linear motor spring elements with various sizes and specifications, the adjustment is convenient and is suitable for the detection of non-standard and irregular linear motor spring elements, for example, linear motors in electronic products such as mobile phones, tablet computers, game pads, medical instruments, VR (virtual reality products) and the like have wide application range, so that the efficiency, the quality and the yield of the products are improved, the production cost is reduced, and the application and the development of the products are expanded.

The above embodiments of the present invention are only for illustrating the technical solutions of the present invention, and not for limiting the same, it should be understood that modifications or substitutions for those skilled in the art can be made on the basis of the above description without departing from the inventive concept, and all such modifications and substitutions should fall within the protection scope of the appended claims. In this case all the details may be replaced with equivalent elements, and the materials, shapes and dimensions may be any.

Claims

1. A measuring tool for a linear motor elastic element is characterized by comprising a base (1), a measuring table (2) and a pressure adjusting and pressing assembly (3), wherein the measuring table (2) and the pressure adjusting and pressing assembly are arranged on the base (1), the top of the measuring table (2) is provided with a first positioning groove (21) for placing a component to be measured (5), one end in the first positioning groove (21) is provided with a positioning component (4) and a rotating cavity (22) which are used for being matched with the arc-shaped part of the end part of the element to be measured (5), the force-adjusting jacking component (3) is positioned at one side of the measuring table (2), the force-adjusting jacking component (3) can be matched with the positioning component (4) to elastically jack the arc-shaped part of the end part of the element to be measured (5), and the end arc part of the element to be tested (5) can be positioned and fixed in the first positioning groove (21) along the rotating cavity (22) integrally.

2. The measuring jig for the linear motor elastic element according to claim 1, characterized in that one side of the first positioning groove (21) close to the pressure adjusting and pressing assembly (3) is open, a profiling positioning surface (23) for matching with the element to be measured (5) is arranged on the side of the first positioning groove (21) far away from the pressure adjusting and pressing assembly (3), and a profiling positioning portion (24) for matching with the element to be measured (5) is arranged on the bottom surface of the first positioning groove (21).

3. The measuring tool for linear motor elastic element according to claim 2, characterized in that the bottom surface of the first positioning groove (21) is provided with a first magnetic member (6) and a first hole (25) for placing the first magnetic member (6).

4. The measuring jig for the linear motor elastic element according to claim 1, wherein the positioning assembly (4) comprises a first positioning column (41) and a rotary positioning piece (42), a first positioning surface (411) matched with the rotating cavity (22) is arranged on the first positioning column (41), an end arc part of the element to be measured (5) can abut against the first positioning surface (411) for positioning, and a first boss (421) inserted into a corresponding groove body of the element to be measured (5) is arranged on the rotary positioning piece (42).

5. The measuring jig for the elastic element of the linear motor according to claim 4, wherein the first positioning column (41) is connected with the rotary positioning element (42) in a clamping manner, a first clamping groove (412) matched with the rotary positioning element (42) is arranged on the first positioning column (41), and a second hole (26) for arranging the first positioning column (41) and the rotary positioning element (42) is arranged in the first positioning groove (21).

6. The measuring jig for the linear motor elastic element according to claim 5, wherein the second hole body (26) penetrates through the base (1) along a vertical direction, a first limiting block (413) is arranged at the bottom of the first positioning column (41), and a first groove body (11) matched with the first limiting block (413) is arranged at the bottom of the second hole body (26).

7. The measuring apparatus for linear motor elastic elements according to any one of claims 1 to 6, wherein the force-adjusting pressing assembly (3) includes a positioning pin (31) and a first elastic member (32) engaged with the positioning pin (31), the first elastic member (32) being capable of elastically pressing the positioning pin (31) against the end arc portion of the device under test (5).

8. A measuring jig for linear motor elastic elements according to claim 7, characterized in that one end of the positioning thimble (31) close to the measuring table (2) is provided with a second boss (311) for being inserted into a corresponding groove of the element to be measured (5).

9. The measuring tool for the elastic element of the linear motor according to claim 8, wherein the first elastic element (32) is a spring sleeved on the positioning thimble (31), the positioning thimble (31) is provided with a first shoulder (312) engaged with one end of the first elastic element (32), the base (1) is provided with a first sliding slot (12) engaged with the first shoulder (312) and a first cover plate (13) engaged with the first sliding slot (12) so that the first shoulder (312) and the first elastic element (32) are limited in the first sliding slot (12).

10. The measuring tool for linear motor elastic element according to claim 9, the first cover plate (13) is provided with a first through hole (131) for the positioning thimble (31) to pass through, a second through hole (14) for the positioning thimble (31) to pass through is arranged on the bottom surface of the first sliding chute (12), the first cover plate (13) is positioned at one end of the base (1) far away from the measuring table (2), one end of the first elastic member (32) is pressed against the first shoulder (312) and the other end thereof is pressed against the first cover plate (13), one end of the positioning thimble (31) far away from the second boss (311) penetrates through the first through hole (131) and is provided with a first pull ring (33), a first gasket (34) is arranged between the first shaft shoulder (312) and the bottom surface.