Gauge centering device

Abstract

The utility model discloses a checking fixture centering device, which relates to the technical field of detection, and adopts the technical scheme that the checking fixture centering device comprises a main positioning piece which can be connected with an external structure; the middle assembly is arranged in the middle of the main positioning piece; the extension assemblies are arranged on the two sides of the middle assembly respectively, and the extension assemblies are detachably connected with the main positioning piece; each extension assembly comprises a first extension part which can move in the direction away from the middle assembly, the first extension parts are in linkage with the middle assembly, and the first extension parts of the two extension assemblies can be driven by the middle assembly to be close to or away from each other. The beneficial effects of the centering device are that the main positioning member, the middle assembly and the extension assembly of the centering device of the detection tool are all detachably connected, and the design greatly improves the installation and disassembly convenience of the device. The two first extending pieces can be driven by the middle assembly to be close to or away from each other. Therefore, the device can flexibly adapt to external structures of different sizes, and the application range of the centering device of the testing fixture is obviously expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection technical field, concretely is a detection tool centering device. BACKGROUND

[0002] In the precision production process of modern manufacturing industry, the detection tool plays a very key role in controlling product quality and size accuracy, and it runs through all links of the whole production. The accuracy of the detection tool centering structure is directly related to the reliability of the detection result and the consistency of the product quality.

[0003] In actual production, the problem of large product span and different deformation trends of key points is often faced. Taking a certain product as an example, the A point and the B point with a large interval distance should be symmetrical, but due to the structural characteristics of the product itself, the deformation trends are different, the deformation amount of the A point can reach 2mm, and the deformation amount of the B point can even reach 2.5mm, and due to the complex product structure and other factors, this deformation amount is difficult to effectively control, so the detection tool and the product need to be centered. The existing centering device is a positioning structure that can be extended outward on both sides of the middle part by means of a linkage structure, such as a connecting rod combination or a gear and rack combination, which requires the linkage structure to have high strength, and the product itself can deform to correspond to the movement of the centering structure. When the product deformation amount is difficult to estimate, the centering structure cannot be used for detection tool centering. In addition, when the product span continues to increase, the centering structure is limited by its own length, which will result in its inability to adapt. UTILITY MODEL CONTENT

[0004] In view of one of the deficiencies of the prior art, the utility model provides a detection tool centering device to solve the detection tool centering problem of symmetrical points of long-span products.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a detection tool centering device, comprising:

[0006] The main positioning member is a block, the main positioning member can be connected with an external structure, and a connecting structure is arranged on the main positioning member;

[0007] The intermediate assembly is arranged in the middle part of the main positioning member, and the intermediate assembly and the main positioning member are detachably connected;

[0008] The extension assembly is arranged on both sides of the intermediate assembly, and the extension assembly and the main positioning member are detachably connected; the extension assembly comprises:

[0009] The first extension member can move towards the direction away from the intermediate assembly, and the first extension member and the intermediate assembly are linked, and the first extension members of the two extension assemblies can approach or move away from each other under the driving of the intermediate assembly.

[0010] Preferably, the main positioning member is a block, and the connecting structure of the main positioning member comprises:

[0011] a first connecting structure for connecting with an external structure;

[0012] a second connecting structure for connecting with the intermediate assembly and the extension assembly.

[0013] Preferably, the first connecting structure comprises:

[0014] a first connecting hole, which is a through hole penetrating the block of the main positioning member, and a plurality of first connecting holes are provided;

[0015] the second connecting structure comprises:

[0016] a notch provided in the middle of the main positioning member, the notch penetrating the block of the main positioning member, and the intermediate assembly can be embedded in the notch;

[0017] a second connecting hole provided on the block of the main positioning member, and the main positioning member is connected with the intermediate assembly and the extension assembly through the second connecting hole.

[0018] Preferably, the intermediate assembly comprises:

[0019] a middle positioning block, which is detachably connected with the main positioning member, and the middle positioning block can be embedded in the notch of the main positioning member;

[0020] a linkage member, which is connected with the middle positioning block and can move along the middle positioning block, and the moving direction of the linkage member is perpendicular to the moving direction of the first extension member.

[0021] Preferably, a threaded hole is provided on the middle positioning block;

[0022] the linkage member comprises:

[0023] a first linkage part, which is a screw rod, and the first linkage part is threadedly connected with the threaded hole of the middle positioning block;

[0024] a second linkage part, which is provided on one side of the first linkage part and has a conical frustum structure, and the second linkage part can be linked with the first extension member;

[0025] a screwing part, which is provided on the side of the second linkage part away from the first linkage part.

[0026] Preferably, the first extension member comprises:

[0027] an extension rod, which is a rod body, the first extension member is linked with the screwing part, and one end of the extension rod has a bevel structure corresponding to the second linkage part;

[0028] The first end part is fixedly arranged at the other end of the extension rod and can abut against an external structure.

[0029] Preferably, the extension assembly further comprises:

[0030] The extension positioning member is detachably connected with the main positioning member through a second connecting structure, and the extension positioning member is slidingly connected with the extension rod of the first extension member.

[0031] Preferably, the extension positioning member comprises:

[0032] The positioning block is a block body with a sliding groove formed therein, and the extension rod is slidingly connected with the positioning block through the sliding groove;

[0033] The positioning plate is fixedly arranged at one side of the positioning block, and the positioning block is fixedly connected with the main positioning member through the positioning plate;

[0034] The reset assembly is configured to reset the first extension member.

[0035] Preferably, a through groove is formed in the rod body of the extension rod, and the reset assembly comprises:

[0036] The positioning pin penetrates through the sliding groove of the positioning block, and the positioning pin extends to one end outside the sliding groove and is inserted into the main positioning member, and the other end of the positioning pin extends into the through groove of the extension rod;

[0037] The reset spring is arranged between the positioning pin and the inner wall of the through groove of the extension rod.

[0038] Preferably, the extension assembly further comprises:

[0039] The extension limiting member is arranged on each of the extension rods, and the extension limiting member is detachably connected with the extension rod; and the two extension limiting members are respectively arranged on the two sides of the extension positioning member.

[0040] Compared with the prior art, the present application has the following beneficial effects: the main positioning member, the intermediate assembly and the extension assembly of the present gauge centering device are detachably connected, which greatly improves the convenience of installation and disassembly of the device. In actual use, if a component is damaged, it can be replaced individually without the need to replace the entire device, thereby effectively reducing the maintenance cost. Secondly, the first extension member of the extension assembly can move away from the intermediate assembly, and the two first extension members can move closer to or away from each other under the driving of the intermediate assembly. This makes the device flexible to adapt to external structures of different sizes, significantly expanding the application range of the gauge centering device. At the same time, the linkage design between the components improves the accuracy and efficiency of the centering operation, ensures the smooth development of the detection work, and provides an efficient and stable centering solution for related detection work. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 The overall structure of the embodiment of the present application is shown in Figure 1 ;

[0042] Figure 2 The overall structure of the embodiment of the present application is shown in Figure 2 ;

[0043] Figure 3 The linkage structure of the embodiment of the present application is shown in

[0044] Figure 4 The first extension structure of the embodiment of the present application is shown in

[0045] Figure 5 The internal structure of the extension positioning member of the embodiment of the present application is shown in

[0046] Figure 6 The A partial enlarged view of Figure 5 ;

[0047] Figure 7 The use state reference diagram of the profiling end member of the embodiment of the present application is shown in

[0048] Figure 8 The use state reference diagram of the second extension member of the embodiment of the present application is shown in

[0049] In the drawings:

[0050] 1, main positioning member; 11, first connecting structure; 12, second connecting structure; 2, intermediate assembly; 21, middle positioning block; 22, linkage member; 221, first linkage part; 222, second linkage part; 223, screwing part; 3, extension assembly; 31, first extension member; 311, extension rod; 312, first end member; 32, extension positioning member; 321, positioning block; 322, positioning plate; 323, positioning pin; 324, return spring; 33, extension limiting member; 4, profiling end member; 5, butt joint member; 6, second extension member. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0052] Please refer to Figure 1 and Figure 2 , the present application provides the following technical solutions:

[0053] The utility model provides a kind of testing tool centering device, including main positioning piece 1, intermediate assembly 2 and extension assembly 3.Therein main positioning piece 1 is block, main positioning piece 1 is used to and external structure connection, that is, the product to be detected is connected, main positioning piece 1 is provided with connecting structure, by the connecting structure of main positioning piece 1, it is connected with product on one hand, and intermediate assembly 2 and extension assembly 3 are connected on the other hand.Intermediate assembly 2 is arranged in the middle of main positioning piece 1, and extension assembly 3 is arranged in two sides of intermediate assembly 2 respectively.Both intermediate assembly 2 and extension assembly 3 are detachably connected with main positioning piece 1.

[0054] Extension assembly 3 includes first extension piece 31, and first extension piece 31 is overall rod structure, and first extension piece 31 can move towards the direction away from intermediate assembly 2, and two first extension pieces 31 are linked with intermediate assembly 2, and under the linkage of intermediate assembly 2, the first extension piece 31 of two extension assemblies 3 can be close to each other or away from each other.

[0055] By the structure of the scheme, when needing to use, the middle position of product is determined by external tool first, such as three-coordinate positioning tool.Determine the middle position of product, then determine the position of main positioning piece 1, make intermediate assembly 2 be in the middle position of product, then adjust the position of two first extension pieces 31, make its position can correspond to the two points of symmetry on product respectively, then synchronously push the first extension piece 3 of two sides by the linkage of intermediate assembly 2, make it be in the state of abutting on the two points of symmetry of product.At this time, it can be ensured that the position of main positioning piece 1 and intermediate assembly 2 is the middle of product, and because the first extension piece 3 of two sides and product keep the state of abutting on each other, main positioning piece 1 and intermediate assembly 2 are stable, can be used as the measurement reference position or measurement support position of other testing tools and the like.

[0056] On the basis of the above embodiment, main positioning piece 1 is "concave" block, and the connecting structure of main positioning piece 1 includes first connecting structure 11 for connecting with external structure and second connecting structure 12 for connecting with intermediate assembly 2 and extension assembly 3.The first connecting structure 11 includes first connecting hole, and the first connecting hole is through-hole passing through the block of main positioning piece 1, and the first connecting hole is provided with a plurality of first connecting holes, and main positioning piece 1 can be connected with the corresponding structure of product or measurement tool by means of the through-hole.The second connecting structure includes notch provided in the middle of main positioning piece 1, and the notch passes through the block of main positioning piece 1, and intermediate assembly 2 can be embedded in the notch.The second connecting structure further includes second connecting hole, and the second connecting hole is provided in the block of main positioning piece 1, and main positioning piece 1 is connected with intermediate assembly 2 and extension assembly 3 through the second connecting hole.The second connecting hole includes jack and screw hole.

[0057] The intermediate assembly 2 comprises a middle positioning block 21 and a linkage 22. The middle positioning block 21 comprises a block body part and a connecting part. The block body part is embedded in the notch of the main positioning member 1. The connecting part is a plate body fixedly connected with the block body part. A plurality of through holes are formed in the connecting part. The middle positioning block 21 is detachably connected with the main positioning member 1 through the connecting part and the second connecting structure of the main positioning member 1. A threaded hole is formed in the middle part of the middle positioning block 21.

[0058] Referring to Figure 3 , the linkage 22 comprises a first linkage part 221. The first linkage part 221 is a screw rod. The first linkage part 221 is threadedly connected with the threaded hole of the middle positioning block 21. A second linkage part 222 is arranged on the upper side of the first linkage part 221. The second linkage part 222 is a conical frustum structure. The second linkage part 222 is linked with the first extension member 31. A screwing part 223 is arranged on the upper side of the second linkage part 222. The screwing part 223 is a cylindrical block. Anti-skid strips or anti-skid grooves are arranged on the side of the screwing part 223.

[0059] The small-area end of the conical frustum of the second linkage part 222 faces the first linkage part 221. The large-area end of the conical frustum of the second linkage part 222 faces the screwing part 223. That is, the second linkage part 222 is an inverted conical frustum. The rod body structure of the first extension member 31 abuts against the side of the second linkage part 222.

[0060] As shown by way of example in the direction of Figure 1 , through this structure, when the screwing part 223 is rotated, the first linkage part 221 is threadedly connected with the middle positioning block 21. Therefore, the second linkage part 222 rises or falls with the screwing. When the second linkage part 222 falls, the side of the second linkage part 222 can push the first extension member 31 to the outside in the horizontal direction, so as to increase the force applied to the symmetric points of the product by the end of the first extension member 31. Conversely, when the second linkage part 222 rises, the force applied to the first extension members 31 on both sides is released.

[0061] On the basis of the above-mentioned embodiments, referring to Figure 4 , the first extension member 31 comprises an extension rod 311 in the form of a rod body. The end of the extension rod 311 corresponding to the conical frustum of the second linkage part 222 is in the form of an inclined surface structure. The extension rod 311 is linked with the outer side of the conical frustum of the second linkage part 222 through the abutment of the inclined end of the extension rod 311 and the conical frustum of the second linkage part 222. A first end part 312 is fixedly arranged on the other end of the extension rod 311. The first end part 312 can abut against an external structure. The first extension member 31 is approximately in the form of a “T” character.

[0062] On the basis of the above-mentioned embodiments, referring to Figure 5 and Figure 6The extension assembly 3 comprises an extension positioning member 32, which is detachably connected with the main positioning member 1 through the second connecting structure 12; the extension positioning member 32 comprises a positioning block 321, which is a block body with a sliding groove; an extension rod 311 is slidably connected with the positioning block 321 through the sliding groove. A positioning plate 322 is fixedly arranged on one side of the positioning block 321; the positioning plate 322 is provided with a connecting hole; and the positioning block 321 is fixedly connected with the main positioning member 1 through the positioning plate 322. Two extension limit members 33 are arranged on each extension rod 311; the extension limit members 33 are detachably connected with the extension rod 311; the extension limit members 33 are slidably connected with extension rods 331, and a locking structure for fixing the positions of the extension limit members 33 is arranged between the extension limit members 33 and the extension rods 331. The two extension limit members 33 on the same extension rod 311 are arranged on the two sides of the extension positioning member 32. Considering that the deformation amounts of the two symmetrical points of the corresponding product may be different, after the position of the middle assembly 2 is determined, the distances from the two first extension members 31 to the corresponding symmetrical points of the product are actually different. Therefore, the distances from the two first extension members 31 to the product can be determined, and then the positions of the extension limit members 33 are adjusted, so that a certain amount of space is left between the extension limit members 33 and the extension positioning member 32; the amount of space corresponds to the displacement amount of the first extension member 31 caused by the conical frustum of the second linkage part 222. After the limit is set, the second linkage part 222 is driven to rotate through the screwing part 223, so as to apply a force to the first extension member 31 to tightly press the product, while ensuring that the middle position of the corresponding product is unchanged.

[0063] On the basis of the above-mentioned embodiments, considering that the first extension member 31 is automatically retracted after the second linkage member 222 releases the force applied to the first extension member 31, a reset assembly is further arranged to reset the first extension member 31.

[0064] The reset assembly can adopt various forms; in this scheme, a through groove is arranged in the rod body of the extension rod 311; a positioning pin 323 is arranged in the sliding groove of the positioning block 321; one end of the positioning pin 323 extending to the outside of the sliding groove is insertable with the main positioning member 1; and the other end of the positioning pin 323 extends into the through groove of the extension rod 311. A reset spring 324 is arranged between the positioning pin 323 and the inner wall of the through groove of the extension rod 311. When the extension rod 311 is pushed outward, the reset spring 324 is compressed. Conversely, when the extension rod 311 loses the pushing force, the reset spring 324 drives the extension rod 311 to retract.

[0065] On the basis of the above-mentioned embodiments, referring to Figure 4 and Figure 7, the first end part 312 is provided with a dovetail groove on one side facing the middle assembly 2, and the pair of middle devices further comprises a profiled end part 4, which is a directional connecting body made according to the structure of a corresponding product and can abut against the corresponding product structure. The profiled end part 4 comprises a profiled part and an abutting part, and the specific structure of the profiled part is adjusted adaptively according to different products. The abutting part is an "L"-shaped rod body, and one end of the abutting part away from the profiled part is a structure corresponding to the first end part 312 and is also provided with a dovetail groove. An abutting piece 5 is arranged between the first end part 312 and the profiled end part 4, and the abutting piece 5 is a "door"-shaped structure, and two opposite inner sides of the abutting piece 5 are provided with dovetail blocks, which can be connected to the dovetail grooves of the first end part 312 and the profiled end part 4, respectively.

[0066] Through this structure, the profiled end part 4 can be connected to the outside of the first end part 312 by means of the abutting piece 5, so that better connection and adaptation can be achieved for different products.

[0067] On the basis of the above-mentioned embodiments, referring to Figure 8 , the present scheme further provides a further extension mode, first, outside the first extension piece 31 on both sides, then respectively connecting one first extension piece 31 through the abutting piece 5, and abutting the dovetail grooves on the two first extension pieces 31 by means of the abutting piece 5. Then connect the second extension piece 6, the second extension piece 6 is buckled on the extension rod 311 of the first extension piece 31 in the form of a cover buckle, and the second extension piece 6 is provided with an insertion block corresponding to the through groove of the extension rod 311, the shape of the insertion block corresponds to the shape of the through groove, and the insertion block is inserted into the through groove, combined with the external cover buckle, to realize simple and stable connection of the second extension piece 6 and the extension rod 311. The end part of the second extension piece 6 is provided with the same end part structure as the first extension piece 31. Thus, it can be directly used in abutment with the product, or the profiled end part 4 can be attached on this basis or continue to be extended.

[0068] In the description of the present application and its embodiments, it should be understood that the terms "top", "bottom", "height" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0069] In the present application and embodiments thereof, unless specifically defined otherwise, the terms "set", "mounted", "connected", "linked", "fixed" and the like are to be construed broadly in accordance with the principles of the application, for example, can be fixed connections, or can be detachable connections, or can be integral; can be mechanical connections, or can be electrical connections, or can be communication; can be direct connections, or can be indirect connections through intermediate media, or can be the internal communication or interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0070] In the present application and embodiments thereof, unless specifically defined otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0071] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described in the above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0072] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0073] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A gauge alignment device, characterized in that, include: The main positioning component is a block and can be connected to an external structure. The main positioning component is equipped with a connection structure. An intermediate component is disposed in the middle of the main positioning component, and the intermediate component and the main positioning component are detachably connected. An extension assembly is provided on each side of the intermediate assembly, and each extension assembly is detachably connected to the main positioning member; the extension assembly includes: The first extension can move away from the intermediate component. The first extension and the intermediate component are linked. The first extensions of the two extension components can move closer to or further away from each other under the influence of the intermediate component.

2. The gauge alignment device as described in claim 1, characterized in that, The main positioning component is a block, and the connection structure of the main positioning component includes: The first connection structure is used to connect with external structures; The second connection structure is used to connect with the intermediate component and the extension component.

3. The gauge alignment device as described in claim 2, characterized in that, The first connection structure includes: The first connecting hole is a through hole that penetrates the main positioning component block, and several first connecting holes are provided; The second connection structure includes: A notch is formed in the middle of the main positioning component, and the notch penetrates the block of the main positioning component. The intermediate component can be fitted into the notch. The second connecting hole is formed on the block of the main positioning component; the main positioning component is connected to the intermediate component and the extension component through the second connecting hole.

4. The gauge alignment device as described in claim 3, characterized in that, The intermediate component includes: The middle positioning block is detachably connected to the main positioning component, and the middle positioning block can be embedded in the recess of the main positioning component; The linkage component is connected to the central positioning block and can move along the central positioning block; the moving direction of the linkage component along the central positioning block is perpendicular to the moving direction of the first extension component.

5. The gauge alignment device as described in claim 4, characterized in that, The positioning block is provided with a threaded hole; The linkage component includes: The first linkage part is a screw, and the first linkage part is threadedly connected to the threaded hole of the middle positioning block; The second linkage part is disposed on one side of the first linkage part, and the second linkage part has a frustum-shaped structure; the second linkage part can be linked with the first extension part. The screwing part is located on the side of the second linkage part away from the first linkage part.

6. The gauge alignment device as described in claim 5, characterized in that, The first extension includes: The extension rod is a rod body, the first extension member is linked with the screwing part, and one end of the extension rod is a bevel structure corresponding to the second linkage part; The first end component is fixedly mounted at the other end of the extension rod; the first end component can abut against the external structure.

7. The gauge alignment device as described in claim 6, characterized in that, The extension component also includes: The extension positioning component is detachably connected to the main positioning component via a second connecting structure; the extension positioning component is slidably connected to the extension rod of the first extension component.

8. The gauge alignment device as described in claim 7, characterized in that, The extended positioning element includes: The positioning block is a block body with a sliding groove on it, and the extension rod is slidably connected to the positioning block through the sliding groove; A positioning plate is fixedly installed on one side of the positioning block, and the positioning block is fixedly connected to the main positioning component through the positioning plate; The reset component can reset the first extension.

9. The gauge alignment device as described in claim 8, characterized in that, The extension rod has a through groove on its body; the reset assembly includes: The positioning pin passes through the groove of the positioning block, and one end of the positioning pin extends to the outside of the groove to be inserted into the main positioning component. The other end of the positioning pin extends into the through groove of the extension rod. A return spring is disposed between the locating pin and the inner wall of the through groove of the extension rod.

10. The gauge alignment device as described in claim 8, characterized in that, The extension component also includes: Two extension limiting members are provided on each of the extension rods, and the extension limiting members and the extension rods are detachably connected; the two extension limiting members are respectively located on both sides of the extension positioning member.

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