Measurement positioning jig and probe measurement equipment

Abstract

The utility model belongs to the technical field of positioning, and discloses a measuring and positioning jig and probe measuring equipment, and the measuring and positioning jig comprises a clamping assembly and a guiding and positioning piece. The clamping assembly is used for clamping the product in the second direction; the second direction is perpendicular to the first direction; the guiding and positioning piece can move close to or away from a product clamped by the clamping assembly in the first direction and comprises a guiding part and a positioning part which are connected, the guiding part is closer to the clamping assembly than the positioning part, the cross section area of the guiding part is smaller than that of the positioning part, and the guiding part is used for being inserted into a functional hole. The positioning part is configured to be in contact with the hole wall of the function hole so as to position the product in the third direction. According to the measuring and positioning jig and the probe measuring equipment provided by the utility model, the complexity of probe control is reduced, the probe only needs to repeatedly measure a path, a new measuring path does not need to be designed according to the position of a product every time, the product measuring efficiency is improved, and the measuring precision can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning technical field especially relates to a kind of measurement positioning jig and probe measurement equipment. BACKGROUND

[0002] Contact type quantity probe is used to measure the size of product, with higher measurement accuracy and accuracy, is widely applied in the size measurement of product to be measured.

[0003] In prior art, contact type quantity probe needs to be positioned to product to be measured when measuring product to be measured, to improve the accuracy and precision of measurement. After product to be measured is positioned, probe selects different plane points on product to be measured to measure. Product to be measured is positioned by measurement positioning jig, and measurement positioning jig includes two clamping jaws oppositely arranged in one direction, and two clamping jaws clamp product to be measured, and the positioning of product to be measured can be realized. Probe detects and contacts the top surface of product to be measured in vertical direction to measure the height of product to be measured.

[0004] However, two clamping jaws can only clamp product to be measured in one direction of horizontal plane, so that the position of product to be measured in another direction of horizontal plane is not unique, and then there is a position of each product to be measured in another direction of horizontal plane, so that probe needs to find the point to be measured according to the position of different product to be measured. It can be seen that the position of multiple product to be measured in horizontal direction is not unique, which increases the control difficulty of probe and affects the measurement efficiency. UTILITY MODEL CONTENTS

[0005] The first purpose of the utility model is to provide a kind of measurement positioning jig, to solve the problems of probe control difficulty and low measurement efficiency in prior art.

[0006] The second purpose of the utility model is to provide a kind of probe measurement equipment, with higher measurement efficiency.

[0007] As conceived above, the technical scheme adopted by the utility model is:

[0008] Measurement positioning jig is used to measure the size of product in first direction, and the product has functional hole extending along first direction;The measurement positioning jig includes:

[0009] Clamping assembly, the clamping assembly is used to clamp the product in second direction;The second direction is perpendicular to the first direction;

[0010] A guide positioning member is capable of moving along the first direction to approach or move away from the product clamped by the clamping assembly, and the guide positioning member comprises a connected guide part and a positioning part, the guide part is closer to the clamping assembly than the positioning part, and the cross-sectional area of the guide part is smaller than that of the positioning part, the guide part is used for inserting into the functional hole, and the positioning part is configured to be in contact with the hole wall of the functional hole to position the product in the third direction.

[0011] In one of the embodiments, the guide positioning member further comprises a main body part and an elastic structure, two ends of the elastic structure are in one-to-one correspondence with the positioning part and the main body part, and the deformation direction of the elastic structure is the first direction; the main body part is capable of moving along the first direction under the action of an external force.

[0012] In one of the embodiments, the guide part comprises a cylindrical segment and a conical segment, and the cylindrical segment is connected to the small-size end of the conical segment.

[0013] In one of the embodiments, the clamping assembly comprises two clamping members oppositely arranged in the second direction; the clamping member comprises a connected clamping main body and a clamping end, the clamping end is configured to be in contact with the product, and the size of the clamping end in the first direction is smaller than that of the clamping main body in the first direction.

[0014] In one of the embodiments, the clamping member further comprises a transition structure connected between the clamping main body and the clamping end, and the longitudinal cross-sectional area of the transition structure gradually decreases in the direction from the clamping main body to the clamping end.

[0015] In one of the embodiments, the measurement positioning jig further comprises a driving assembly connected to the two clamping members and used for driving the two clamping members to synchronously approach or move away from each other.

[0016] In one of the embodiments, the driving assembly comprises a pushing member and two link members movably connected to the pushing member, and the two link members are in one-to-one correspondence with the two clamping members; the movement of the pushing member along the third direction can drive the two link members to synchronously move in the second direction.

[0017] In one of the embodiments, the link member comprises a link seat, a connecting rod, and a rolling structure; the link seat is connected with the corresponding clamping member, the connecting rod extends along the third direction, one end of the connecting rod is connected to the link seat, and the rolling structure is rotatably arranged at the other end of the connecting rod.

[0018] The pushing member is provided with two sliding holes, the length direction of the sliding holes is arranged at an angle with the second direction and the third direction, two rolling structures correspond to two sliding holes respectively, and each rolling structure is rollably arranged in the corresponding sliding hole along the length direction of the corresponding sliding hole.

[0019] In one of the embodiments, the driving assembly further comprises a moving block and a fixed block, the position of the moving block is fixed, the fixed block is arranged opposite to the moving block in the third direction, and the moving block is connected to the pushing member; an elastic member extending in the third direction is arranged between the moving block and the fixed block; the moving of the pushing member can push the moving block to press the elastic member; and the elastic member is used for resetting the moving block.

[0020] The probe measurement device comprises a probe and the measurement positioning jig.

[0021] The measurement positioning jig and the probe measurement device provided by the utility model have at least the following beneficial effects:

[0022] The product is positioned in the second direction through the clamping assembly, and the product is positioned in the third direction through the guiding positioning assembly, so that the position of the product in the horizontal direction is unique, the positions of the multiple products relative to the measurement positioning jig are unique when the multiple products with the same structure are measured, the control process of the probe is consistent when the multiple products are measured, the complexity of the probe control is reduced, the probe only needs to repeatedly measure the path, and it is not necessary to design a new measurement path according to the position of the product each time, the efficiency of the product measurement is improved, and the measurement accuracy can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the following description of the embodiments of the utility model will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings without paying creative labor.

[0024] Figure 1 It is the structural schematic diagram of the measurement positioning jig provided by the embodiments of the utility model;

[0025] Figure 2 It is the first structural schematic diagram of the clamping piece provided by the embodiments of the utility model;

[0026] Figure 3 It is the second structural schematic diagram of the clamping piece provided by the embodiments of the utility model;

[0027] Figure 4is a structural schematic view of the guiding positioning piece provided by the embodiment of the utility model;

[0028] Figure 5 is a structural schematic view of the partial measurement positioning jig provided by the embodiment of the utility model;

[0029] Figure 6 is a first use state reference view of the measurement positioning jig provided by the embodiment of the utility model;

[0030] Figure 7 is a second use state reference view of the measurement positioning jig provided by the embodiment of the utility model;

[0031] Figure 8 is a top view of the product provided by the embodiment of the utility model;

[0032] Figure 9 is a side view of the product provided by the embodiment of the utility model.

[0033] In the drawings:

[0034] 100, clamping assembly;110, clamping piece;111, clamping main body;112, clamping end;113, transition structure;200, guiding positioning piece;210, guiding portion;211, cylindrical section;212, conical section;220, positioning portion;230, main body portion;240, elastic structure;300, driving assembly;310, pusher;311, sliding hole;320, linkage;321, linkage seat;322, connecting rod;323, rolling structure;330, elastic piece;340, moving block;350, fixed block;400, base;410, recess;10, probe;1, product;11, functional hole;12, groove;Z, first direction;X, second direction;Y, third direction. DETAILED DESCRIPTION

[0035] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model is further illustrated below by specific implementation manners in conjunction with the drawings. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all.

[0036] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two elements of the interaction relationship.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.In the description of the embodiment, if not special, "multiple" specifically refers to two or more than two.

[0039] In the description of the embodiment, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, only for the convenience of description and simplification of operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0040] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element.

[0041] The technical scheme of the utility model is further illustrated below by specific embodiments in conjunction with the drawings.

[0042] The embodiment provides a kind of measurement positioning jig, for when using probe measures the size of product in first direction, the position of product in horizontal direction is limited, reduce the control difficulty of probe, improve measurement efficiency.

[0043] Figure 8 andFigure 9 A product 1 is provided in the present embodiment. Wherein, Figure 8 is a top view of the product 1, Figure 9 is a front view of the product 1. As Figure 8 shown, the top surface of the product 1 is provided with a functional hole 11 extending along the height direction thereof. As Figure 9 shown, the product 1 is provided with a groove 12 on each of the two sides thereof in the width direction. It is of course understood that the present embodiment does not limit the shape and size of the product 1, as long as the top surface thereof is provided with a functional hole 11 and the two sides thereof are provided with a groove 12.

[0044] For ease of understanding, the present embodiment defines three directions in space, namely a first direction Z, a second direction X and a third direction Y. Among them, the first direction Z is a vertical direction, the second direction X and the third direction Y are both in a horizontal plane, and the second direction X and the third direction Y are perpendicular, that is, at least two of the first direction Z, the second direction X and the third direction Y are perpendicular to each other. When the product 1 is positioned by a measurement positioning jig, the height direction of the product 1 is the first direction Z, the width direction of the product 1 is the second direction X, and the length direction of the product 1 is the third direction Y. The measurement positioning jig in the present embodiment can position the product 1 in the second direction X and the third direction Y.

[0045] Exemplarily, as Figures 1 to 7 shown, the measurement positioning jig comprises a clamping assembly 100 and a guide positioning piece 200. Among them, the clamping assembly 100 is used to clamp the product 1 in the second direction X to position the product 1 in the second direction X. It should be noted that although the clamping assembly 100 clamps the product 1 in the second direction X, it does not mean that the product 1 cannot move in the third direction Y, that is, when the product 1 is subjected to a force in the third direction Y greater than the friction between the clamping assembly 100 and the product 1, the product 1 can move in the third direction Y, thereby realizing the adjustment and positioning of the position of the product 1 in the third direction Y.

[0046] The guide positioning piece 200 in the present embodiment can move along the first direction Z to approach or move away from the product 1 clamped by the clamping assembly 100 to adjust the position of the product 1 in the third direction Y. Specifically, as Figure 4 shown, the guide positioning piece 200 comprises a guide portion 210 and a positioning portion 220. Among them, the guide portion 210 is closer to the clamping assembly 100 than the positioning portion 220, and in the present embodiment, the guide portion 210 is located below the positioning portion 220, so that when the guide positioning piece 200 moves to approach the product 1, the guide portion 210 can move into the functional hole 11 before the positioning portion 220, that is, the guide portion 210 is used to insert into the functional hole 11.

[0047] And, the cross-sectional area of the guiding portion 210 is smaller than the cross-sectional area of the positioning portion 220, so that the guiding portion 210 is more convenient to insert into the functional hole 11 and guide, so that the positioning portion 220 can be inserted into the functional hole 11 under the guidance of the guiding portion 210. The positioning portion 220 in the embodiment is configured to be in contact with the hole wall of the functional hole 11 to position the product 1 in the third direction Y, so that the positioning of the product 1 in the second direction X and the third direction Y is realized. It should be noted that when the guiding portion 210 is located in the functional hole 11, the guiding portion 210 can be in contact with the hole wall of the functional hole 11, and can also not be in contact with the hole wall of the functional hole 11; when the positioning portion 220 gradually moves into the functional hole 11, if the axis of the positioning portion 220 does not coincide with the axis of the functional hole 11, the product 1 will move in the third direction Y under the pushing of the positioning portion 220 until the axis of the positioning portion 220 coincides with the axis of the functional hole 11, so that the positioning of the product 1 in the third direction Y is realized.

[0048] The measuring positioning jig provided by the embodiment realizes the positioning of the product 1 in the second direction X through the clamping assembly 100, realizes the positioning of the product 1 in the third direction Y through the guiding positioning assembly, so that the position of the product 1 in the horizontal direction is unique, and when multiple products 1 with the same structure are measured, the positions of the multiple products 1 relative to the measuring positioning jig are unique, so that the control process of the probe 10 is consistent when multiple products 1 are measured, the complexity of the control of the probe 10 is reduced, and only the repeated measurement path of the probe 10 is needed, without the need to design a new measurement path according to the position of the product 1 each time, thereby improving the efficiency of the measurement of the product 1 and ensuring the measurement accuracy.

[0049] Optionally, the movement of the guiding positioning member 200 in the first direction Z can be realized by a driving member such as a pneumatic cylinder or a linear motor, which is not limited in the embodiment.

[0050] In one embodiment, in order to reduce the risk of the guiding positioning member 200 scratching the product 1, please continue to refer to Figure 4The guiding positioning member 200 further comprises a main body part 230 and an elastic structure 240. The two ends of the elastic structure 240 are connected to the positioning part 220 and the main body part 230 respectively, that is, the main body part 230 is connected to the positioning part 220 through the elastic structure 240, and the deformation direction of the elastic structure 240 is the first direction Z. The main body part 230 can move along the first direction Z under the action of an external force, and in turn drive the positioning part 220 and the guiding part 210 to move along the first direction Z through the elastic structure 240. Due to the presence of the elastic structure 240, the contact between the positioning part 220 and the guiding part 210 and the product 1 is no longer a hard contact, but the main body part 230 transmits the force in the first direction Z to the positioning part 220 and the guiding part 210 through the elastic structure 240, so that the positioning part 220 and the guiding part 210 can be buffered through the elastic structure 240 when they contact the product 1, avoiding the situation that the positioning part 220 and the guiding part 210 scratch the product 1, having high reliability and safety, and reducing the scrap rate. For example, the elastic structure 240 can be a spring (such as a compression spring), etc., which is not limited in the present embodiment.

[0051] Further optionally, in order to avoid the influence of the elastic structure 240 on the moving direction of the positioning part 220 and the guiding part 210, the positioning part 220 in the present embodiment can be slidingly connected to the main body part 230 along the first direction Z, so that when the main body part 230 moves along the first direction Z, the positioning part 220 and the guiding part 210 can also move along the first direction Z, thereby ensuring the uniqueness of the position of the product 1 after being positioned.

[0052] For example, in order to improve the guiding effect of the guiding part 210, as shown in Figure 4 The guiding part 210 comprises a cylindrical segment 211 and a conical segment 212. The cylindrical segment 211 is connected to the small-size end of the conical segment 212, and the large-size end of the conical segment 212 is connected to the positioning part 220. The cross-sectional size of the cylindrical segment 211 is smaller than that of the conical segment 212, so that the cylindrical segment 211 is relatively thin, and in turn can be inserted into the functional hole 11 as long as the cylindrical segment 211 can be inserted into the functional hole 11 when the axis of the functional hole 11 is greatly different from the axis of the guiding positioning member 200 in the third direction Y. By providing the conical segment 212, on the one hand, it can gradually guide during the process of the guiding positioning member 200 gradually extending into the functional hole 11, avoiding the situation that the positioning part 220 cannot be inserted into the functional hole 11, and on the other hand, it can also improve the connection strength between the positioning part 220 and the cylindrical segment 211, reducing the risk of fracture of the guiding positioning member 200.

[0053] In some optional embodiments, the positioning portion 220 can also be provided in a segmented structure with different cross-sectional sizes, so that the positioning portion 220 has higher structural strength and reduces the risk of breakage. By providing the positioning portion 220 with a segmented structure, positioning of the product 1 in the first direction Z can also be achieved. For example, the positioning portion 220 includes a large-diameter end (not shown in the figure) and a small-diameter end (not shown in the figure) connected coaxially. The small-diameter end is connected to the guide portion 210, and the large-diameter end is in abutment with the elastic structure 240. When the end face of the large-diameter end of the positioning portion 220 is in abutment with the top face of the product 1, the length of the positioning portion 220 extending into the functional hole 11 of the product 1 is fixed, indicating that the bottom face of the product 1 has contacted the support. At this time, the position of the product 1 in the first direction Z is fixed, so that the positions of the plurality of products 1 in the first direction Z are unique, and thus the position of the product 1 in space is unique, so as to improve the accuracy of measuring the height of the product 1.

[0054] The product 1 can be clamped by the clamping assembly 100 in various ways. For example, as shown in Figure 1 , the present embodiment provides a clamping assembly 100 including two clamping members 110 arranged opposite to each other in the second direction X. The two clamping members 110 can cooperate to clamp the product 1, so as to limit the position of the product 1 in the second direction X.

[0055] Further, as shown in Figure 2 and Figure 3 , each clamping member 110 includes a clamping body 111 and a clamping end 112 connected thereto. The clamping end 112 and the clamping body 111 are arranged in the second direction X. The clamping end 112 is configured to contact the product 1, i.e., the clamping end 112 is closer to the product 1 than the clamping body 111. The size of the clamping end 112 in the first direction Z is smaller than the size of the clamping body 111 in the first direction Z, i.e., the clamping end 112 is thinner than the clamping body 111. By providing a thinner clamping end 112, for the product 1 whose side face cannot contact other objects but has a groove 12, the clamping end 112 can be inserted into the groove 12 without contacting the outer side face of the product 1, so as to ensure the clamping effect without damaging the outer surface of the product 1.

[0056] In some optional embodiments, as shown in Figure 9 , the product 1 is provided with grooves 12 on both side faces in the second direction X. The depth direction of the groove 12 is the second direction X, the width direction of the groove 12 is the first direction Z, and the length direction of the groove 12 is the third direction Y. The two clamping ends 112 are configured to be inserted into the two grooves 12 one by one, so as to position the product 1 in the second direction X.

[0057] In order to prevent the connection between the clamping body 111 and the clamping end 112 from failing, in one embodiment, as shown in Figure 2or Figure 3 As shown in the figure, the clamping member 110 further comprises a transition structure 113. The transition structure 113 is connected between the clamping body 111 and the clamping end 112, and is used for the transition between the two. In the direction from the clamping body 111 to the clamping end 112, the longitudinal cross-sectional area of the transition structure 113 gradually decreases. In this way, the situation that the connection strength is reduced due to the sudden decrease of the cross-sectional area and the clamping end 112 is easily broken can be avoided, and the structural strength and reliability of the clamping member 110 are improved.

[0058] Exemplarily, in the direction from the clamping body 111 to the clamping end 112, the thickness of the transition structure 113 in the first direction Z gradually decreases, while the size of the transition structure 113 in the third direction Y remains unchanged, so as to achieve the gradual decrease of the longitudinal cross-sectional area of the transition structure 113.

[0059] In some optional embodiments, as Figure 1 shown, the measurement positioning jig further comprises a driving assembly 300. The driving assembly 300 is connected to the two clamping members 110, and is used for driving the two clamping members 110 to move synchronously towards or away from each other, so as to realize the clamping and loosening of the product 1. By arranging the driving assembly 300, the flexibility of the measurement positioning jig can be improved.

[0060] In one implementation manner, please refer to Figure 1 and Figure 5 The driving assembly 300 comprises a pushing member 310 and two linkage members 320 which are movably connected to the pushing member 310. The two linkage members 320 are connected to the two clamping members 110 one by one. When the pushing member 310 moves in the third direction Y, it can drive the two linkage members 320 to move synchronously in the second direction X, so as to indirectly drive the two clamping members 110 to move towards or away from each other. It should be noted that the movement of the pushing member 310 can be manual pushing, or can be pushing by an electric component such as an air cylinder, and the present embodiment does not limit this. By arranging the two linkage members 320, one pushing member 310 can drive two clamping members 110 to move at the same time, which saves the number of pushing members 310, and simplifies the structural complexity of the driving assembly 300 and the measurement positioning jig. Moreover, the linkage member 320 also realizes the conversion of the movement of the pushing member 310 in the third direction Y to the movement in the second direction X, so that the measurement positioning jig can occupy a smaller space in the second direction X. For example, the measurement positioning jig can be similar to a square, which is beneficial to the miniaturization of the measurement positioning jig.

[0061] Further optionally, as Figure 5As shown, the linkage 320 comprises a linkage seat 321, a connecting rod 322, and a rolling structure 323. The linkage seat 321 is connected with the corresponding clamping piece 110, the connecting rod 322 extends along the third direction Y, and one end of the connecting rod 322 is connected to the linkage seat 321, and the rolling structure 323 is rotatably arranged at the other end of the connecting rod 322. As shown, Figure 6 or Figure 7 As shown, the pushing piece 310 is provided with two sliding holes 311, each of which is arranged at an angle with the second direction X and at an angle with the third direction Y, and two rolling structures 323 correspond to the two sliding holes 311, and each rolling structure 323 is rollingly arranged in the corresponding sliding hole 311 along the length direction of the corresponding sliding hole 311. It should be noted that the rolling structure 323 can be a component that can roll, such as a roller, and the rolling structure 323 is in contact with the hole wall of the sliding hole 311, and the axis direction of the rolling structure 323 is the first direction Z.

[0062] Optionally, as shown, Figure 6 The measurement positioning jig further comprises a base 400, and the clamping assembly 100 and the driving assembly 300 are arranged on the base 400 and located at the top of the base 400.

[0063] Exemplarily, the clamping piece 110 in the embodiment is slidably connected to the base 400 along the second direction X, so as to ensure that the clamping piece 110 can move in the second direction X, and further ensure that the clamping end 112 can be inserted into the groove 12 of the product 1. In one embodiment, the clamping piece 110 can be directly slidably connected to the base 400 through a slide rail slider structure. In other embodiments, the clamping piece 110 is fixedly connected to the linkage seat 321, and the linkage seat 321 is slidably connected to the base 400 through a slide rail slider structure.

[0064] In some optional embodiments, the pushing piece 310 is slidably connected to the base 400 along the third direction Y, so as to ensure that the pushing piece 310 can move along the third direction Y. For example, the pushing piece 310 can be connected to the base 400 through a slide rail slider structure.

[0065] When the pushing piece 310 moves along the third direction Y, since one end of the connecting rod 322 is connected with the linkage seat 321, and the linkage seat 321 is slidably arranged on the base 400 along the second direction X, the connecting rod 322 can only move in the second direction X and cannot move in the third direction Y, so the rolling structure 323 cannot move in the third direction Y. The hole wall of the sliding hole 311 of the pushing piece 310 pushes the rolling structure 323 in it to roll and move the rolling structure 323 along the second direction X, thereby driving the linkage seat 321 to move along the second direction X through the connecting rod 322, so as to drive the clamping piece 110 to move along the second direction X, and realize the synchronous movement of the two clamping pieces 110.

[0066] As shown in Figure 6 , the two sliding holes 311 are in a right "8" shape, which can convert the driving force in the third direction Y into the power in the second direction X. In other embodiments, the two sliding holes 311 can also be in an upside-down "8" shape, which can also convert the driving force in the third direction Y into the power in the second direction X, and the present embodiment is not limited in this regard.

[0067] It should be noted that the angle between the length direction of the sliding hole 311 and the second direction X is a first angle, and the angle between the length direction of the sliding hole 311 and the third direction Y is a second angle, and the first angle and the second angle are complementary to each other, so as to convert the driving force in the third direction Y into the power in the second direction X. For example, the first angle and the second angle can each be 45 degrees.

[0068] In order to further improve the convenience of using the measurement positioning jig, the pushing piece 310 in the present embodiment has an automatic reset function. Specifically, please continue to refer to Figure 5 , the driving assembly 300 further comprises a moving block 340 and a fixed block 350, the position of the fixed block 350 is fixed, for example, the fixed block 350 can be fixed on the base 400. The fixed block 350 and the moving block 340 are oppositely arranged in the third direction Y, and the moving block 340 is connected to the pushing piece 310. An elastic member 330 extending in the third direction Y is arranged between the moving block 340 and the fixed block 350. The elastic member 330 is used for the reset of the moving block 340, and then the reset of the pushing piece 310 is realized, so as to realize the reset of the linkage seat 321 and the clamping piece 110, which has a high degree of automation. In some optional embodiments, as shown in Figure 5 , the fixed block 350 is closer to the clamping piece 110 than the moving block 340.

[0069] For example, when the pushing piece 310 is pushed in the direction of the third direction Y close to the product 1, the pushing piece 310 moves and pushes the moving block 340 to extrude the elastic member 330, at this time, the two clamping pieces 110 are away from each other. After the pushing piece 310 is released, the moving piece 340 and the pushing piece 310 are reset under the action of the elastic member 330, at this time, the two clamping pieces 110 are close to each other and clamp the product 1.

[0070] Of course, it can be understood that the movement of the two clamping pieces 110 can also not be realized by the above-mentioned driving assembly 300, but by a gas cylinder or the like, for example, one gas cylinder can be connected to each clamping piece 110, and the two gas cylinders act simultaneously to realize the automatic movement of the clamping piece 110 by the gas cylinder, which reduces the labor intensity of the operator.

[0071] Optionally, as shown in Figure 6As shown, the top surface of the base 400 is provided with a recess 410, which is used to accommodate the product 1 and can be used to roughly position the product 1.

[0072] In the embodiment, in order to prevent the connecting rod 322, the linkage seat 321 and the rolling structure 323 from moving in the first direction Z, the connecting rod 322 is arranged between the pusher 310 and the base 400. When a slide rail and slide block structure is arranged between the pusher 310 and the base 400, the slide rail and slide block structure is located at both ends of the pusher 310 in the second direction X, the middle part of the pusher 310 has a gap with the base 400, the connecting rod 322 is located in the gap and is limited in the position in the first direction Z by the pusher 310 and the base 400, thereby preventing the connecting rod 322 from moving in the first direction Z.

[0073] The embodiment also provides a probe 10 measuring device, which comprises the probe 10 and the measuring positioning jig. The probe 10 measuring device has high measuring efficiency and high measuring accuracy.

[0074] In some optional embodiments, the probe 10 measuring device further comprises a support (not shown in the figure), and the probe 10 is movably arranged on the support, so as to be able to measure different positions of the product 1. The guide positioning member 200 is connected to the support and is movable relative to the support in the first direction Z, so that the guide positioning member 200 does not need to be additionally provided with a supporting component, thereby improving the utilization rate of the support.

[0075] When the probe 10 measuring device is used, the original state of the measuring positioning jig is shown in the figure, at this time, the two clamping members 110 are in the closest position, the rolling structure 323 is located at the uppermost position of the slide hole 311, and the guide positioning member 200 is located above the recess 410. Figure 7 Figure 7 When the product 1 needs to be put into the recess 410, the pusher 310 is pushed upward, the rolling structure 323 rolls in the slide hole 311 and moves in the second direction X under the action of the slide hole 311 which is arranged in an inclined manner, specifically, the rolling structure 323 located on the left side moves to the left, and the rolling structure 323 located on the right side moves to the right, thereby driving the clamping members 110 to move in the second direction X through the connecting rod 322 and the linkage seat 321, until the rolling structure 323 is located at the lowermost position of the slide hole 311, at this time, the distance between the two clamping members 110 reaches the maximum. At this time, the elastic member 330 (for example, a spring) is compressed and stores elastic potential energy.

[0076] ​Next, the external force applied to the pusher 310 is controlled to be constant, and the product 1 is placed in the groove 410 to perform rough positioning. Then, the external force applied to the pusher 310 is removed, so that the pusher 310 is driven to move downward in the third direction Y under the action of the elastic member 330, and the two clamping members 110 are driven to move close to each other by the linkage member 320, until the clamping ends 112 of the clamping members 110 are inserted into the two grooves 12 of the product 1, so as to limit the product 1 in the second direction X. Then, the guide driving member is controlled to be lowered in the first direction Z and inserted into the functional hole 11 of the product 1, and the position of the product 1 in the third direction Y can be adjusted during the insertion of the positioning part 220 into the functional hole 11, so that the product 1 can be located at a certain position. Then, the probe 10 is controlled to measure along the predetermined point.

[0077] After the measurement is completed, the guide positioning member 200 is controlled to be withdrawn from the functional hole 11, and then the pusher 310 is pulled again to drive the two clamping members 110 to move away from each other and exit the grooves 12, and finally the product 1 is taken out and placed into another product 1 for measurement.

[0078] It should be noted that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A measuring fixture for measuring the dimension of a product (1) in a first direction (Z), said product (1) having a functional hole (11) extending in the first direction (Z); characterized in that, The measurement positioning jig comprises: a clamping assembly (100) for clamping the product (1) in a second direction (X); the second direction (X) is perpendicular to the first direction (Z); a guide positioning member (200) capable of moving along the first direction (Z) to approach or move away from the product (1) clamped by the clamping assembly (100), and comprising a connected guide part (210) and a positioning part (220); the guide part (210) is closer to the clamping assembly (100) than the positioning part (220); the cross-sectional area of the guide part (210) is smaller than that of the positioning part (220); the guide part (210) is used for inserting the functional hole (11); the positioning part (220) is configured to be in contact with the hole wall of the functional hole (11) to position the product (1) in a third direction (Y).

2. The measurement positioning fixture of claim 1, wherein, The guide positioning member (200) further comprises a main body part (230) and an elastic structure (240); the two ends of the elastic structure (240) are in one-to-one correspondence with the positioning part (220) and the main body part (230), and the deformation direction of the elastic structure (240) is the first direction (Z); the main body part (230) can move along the first direction (Z) under the action of an external force.

3. The measurement positioning fixture of claim 1, wherein, The guide part (210) comprises a cylindrical segment (211) and a conical segment (212); the cylindrical segment (211) is connected to the small-size end of the conical segment (212).

4. The measurement positioning fixture according to any one of claims 1-3, wherein, The clamping assembly (100) comprises two clamping members (110) oppositely arranged in the second direction (X); the clamping member (110) comprises a connected clamping main body (111) and a clamping end (112); the clamping end (112) is configured to be in contact with the product (1); the size of the clamping end (112) in the first direction (Z) is smaller than that of the clamping main body (111) in the first direction (Z).

5. The measurement positioning fixture of claim 4, wherein, The clamping member (110) further comprises a transition structure (113) connected between the clamping main body (111) and the clamping end (112); along the direction from the clamping main body (111) to the clamping end (112), the longitudinal cross-sectional area of the transition structure (113) gradually decreases.

6. The measurement positioning fixture of claim 4, wherein, The measurement positioning jig further comprises a driving assembly (300) connected to the two clamping members (110) and used for driving the two clamping members (110) to synchronously approach or move away from each other.

7. The measurement positioning fixture of claim 6, wherein, The driving assembly (300) comprises a pushing member (310) and two linkage members (320) movably connected to the pushing member (310); the two linkage members (320) are in one-to-one correspondence with the two clamping members (110); the movement of the pushing member (310) in the third direction (Y) can drive the two linkage members (320) to synchronously move in the second direction (X).

8. The measurement positioning fixture of claim 7, wherein, The linkage (320) comprises a linkage seat (321), a connecting rod (322) and a rolling structure (323); the linkage seat (321) is connected with the corresponding clamping piece (110), the connecting rod (322) extends along the third direction (Y), and one end of the connecting rod (322) is connected to the linkage seat (321); and the rolling structure (323) is rotatably arranged at the other end of the connecting rod (322); The pushing piece (310) is provided with two sliding holes (311), the length direction of the sliding hole (311) is arranged at an angle with respect to the second direction (X) and the third direction (Y), and two rolling structures (323) correspond to two sliding holes (311) one by one; and each rolling structure (323) is rollably arranged in the corresponding sliding hole (311) along the length direction of the corresponding sliding hole (311).

9. The measurement positioning fixture of claim 7, wherein, The driving assembly (300) further comprises a moving block (340) and a fixed block (350); the position of the moving block (340) is fixed, the fixed block (350) is oppositely arranged with the moving block (340) along the third direction (Y), and the moving block (340) is connected to the pushing piece (310); an elastic piece (330) extending along the third direction (Y) is arranged between the moving block (340) and the fixed block (350); the moving of the pushing piece (310) can push the moving block (340) to press the elastic piece (330); and the elastic piece (330) is used for resetting the moving block (340).

10. Probe measurement device, characterized in that The measuring positioning jig comprises a probe and the measuring positioning jig of any one of claims 1-9.

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