Clamp

Abstract

A clamp is used for fixing a part, the part is provided with a first plate body, a second plate body and a third plate body, and the first plate body and the second plate body are arranged on the third plate body to form a U shape. Comprising a support which is provided with an installation opening used for containing a part; the three clamping mechanisms are arranged on the support, located at the positions corresponding to the first plate body, the second plate body and the third plate body respectively and used for clamping and fixing the first plate body, the second plate body and the third plate body respectively. The first plate body, the second plate body and the third plate body forming the U-shaped groove structure can be clamped and fixed through the three clamping mechanisms correspondingly, so that the firmness of the part can be improved, vibration generated during part machining is relieved, vibration marks generated during machining are avoided, and the surface smoothness and machining precision of the part are improved.

Description

Technical Field

[0001] The invention relates to the technical field of parts processing, in particular to a clamp. Background Art

[0002] Among the core components of aerospace and aviation, there are more and more parts with U-groove structures. Parts with this structure are prone to vibration during processing, resulting in vibration marks, poor surface finish, dimensional tolerance and other problems. Therefore, there is an urgent need for a fixture that can fix parts with U-groove structures during processing, reduce the vibration generated during processing, avoid vibration marks during processing, and improve the surface finish and processing accuracy of parts. Summary of the invention

[0003] In view of the above problems in the prior art, the present application provides a clamp that can fix parts with a U-groove structure when processing them, reduce the vibration generated during the processing of the parts, avoid vibration marks during processing, and improve the surface finish and processing accuracy of the parts.

[0004] The present application provides a clamp for fixing parts, wherein the parts have a first plate body, a second plate body and a third plate body, wherein the first plate body and the second plate body are arranged on the third plate body to form a U shape; the clamp comprises: a bracket, wherein the bracket is provided with a mounting opening for accommodating the parts; and three clamping mechanisms are provided on the bracket, and are respectively located at corresponding positions of the first plate body, the second plate body and the third plate body, and respectively clamp and fix the first plate body, the second plate body and the third plate body.

[0005] By adopting the above structure, the first plate body, the second plate body and the third plate body constituting the U-groove structure can be clamped and fixed respectively by three clamping mechanisms, thereby improving the firmness of the parts, reducing the vibration generated during the processing of the parts, avoiding the generation of vibration marks during processing, and improving the surface finish and processing accuracy of the parts.

[0006] In some embodiments, the clamping mechanism includes a first support nail and a second support nail, and at least one of the first support nail and the second support nail of each clamping mechanism is threadedly connected to the bracket and is respectively located on both sides of the corresponding first plate body, the second plate body, and the third plate body.

[0007] By adopting the above structure, the first support nail and / or the second support nail can be rotated to make the first support nail and the second support nail approach or move away from the corresponding first plate body, second plate body, and third plate body, so that when the parts need to be fixed, the first support nail and the second support nail can clamp and fix the first plate body, the second plate body, and the third plate body. In addition, by threading the first support nail and the second support nail with the bracket, the position of the first support nail and the second support nail clamping the parts can also be adjusted, so that the clamp can clamp and fix parts of different sizes and specifications. In this way, the adaptability range of the clamp can be improved.

[0008] In some embodiments, the axes of the first supporting nail and the second supporting nail are respectively perpendicular to the corresponding first plate body, the second plate body, and the third plate body.

[0009] By adopting the above structure, the axes of the first support pin and the second support pin are respectively perpendicular to the corresponding first plate, second plate, and third plate, so that the stability of the first support pin and the second support pin when clamping the first plate, second plate, and third plate can be improved. As a result, the vibration generated during the processing of the parts can be reduced, the vibration marks generated during the processing can be avoided, and the surface finish and processing accuracy of the parts can be improved.

[0010] In some embodiments, the axis of the first support pin coincides with the axis of the corresponding second support pin.

[0011] By adopting the above structure, by making the axis of the first support pin coincide with the axis of the corresponding second support pin, the forces exerted by the first support pin and the second support pin on the first plate body, the second plate body and the third plate body can coincide along the thickness direction of the first plate body, the second plate body and the third plate body, thereby improving the stability of the first support pin and the second support pin when clamping the first plate body, the second plate body and the third plate body. In this way, the vibration generated during the processing of the parts can be reduced, the vibration marks generated during the processing can be avoided, and the surface finish and processing accuracy of the parts can be improved.

[0012] In some embodiments, the first supporting pin and the second supporting pin are arranged in pairs, and the clamping mechanism has multiple pairs of the first supporting pin and the second supporting pin.

[0013] By adopting the above structure, by setting a plurality of pairs of first supporting nails and second supporting nails, the clamping mechanism can clamp and fix the first plate body, the second plate body, and the third plate body at the respective positions, thereby improving the stability of the clamping mechanism when clamping the first plate body, the second plate body, and the third plate body. In this way, the vibration generated during the processing of the parts can be reduced, vibration marks can be avoided during the processing, and the surface finish and processing accuracy of the parts can be improved.

[0014] In some embodiments, in the multiple pairs of the first supporting pins and the second supporting pins of the clamping mechanism, ends of multiple first supporting pins and / or ends of multiple second supporting pins are rotatably connected to abutment plates.

[0015] By adopting the above structure, the abutment plates are connected by rotating at the ends of the plurality of first support pins and the ends of the plurality of second support pins, so that the first support pins and the second support pins can be abutted against the first plate body, the second plate body or the third plate body through the abutment plates. In this way, the contact area with the first plate body, the second plate body or the third plate body can be increased, thereby improving the stability of clamping the first plate body, the second plate body or the third plate body. In this way, the vibration generated during the processing of the parts can be reduced, the vibration marks generated during the processing can be avoided, and the surface finish and processing accuracy of the parts can be improved.

[0016] In some embodiments, in the clamping mechanisms corresponding to the first plate body and the second plate body, both ends of a plurality of the second support pins are respectively connected to one of the abutment plates, and at least one of the two abutment plates and the second support pin are adjustable in the axial position of the second support pin, so that the two abutment plates abut against the inner sides of the first plate body and the second plate body, respectively.

[0017] By adopting the above structure, abutment plates are provided at both ends of the second support nail, so that the abutment plates at both ends of the second support nail can abut against the inner surface of the first plate body and the second plate body respectively. Therefore, it is not necessary to provide a connection structure with the second support nail on the bracket, thereby simplifying the structure of the bracket. At the same time, by making the abutment plate and the second support nail adjustable in the axial direction of the second support nail, the abutment plate can be adjusted according to the distance between the first plate body and the second plate body, so as to adapt to parts of different sizes and models.

[0018] In some embodiments, the multiple pairs of the first supporting pins and the second supporting pins of the clamping mechanism are located on the same plane.

[0019] By adopting the above structure, by making the multiple pairs of first supporting pins and second supporting pins of the clamping mechanism located in the same plane, the force applied by the clamping mechanism on the first plate body, the second plate body, and the third plate body can be made more uniform. Specifically, the distances between each pair of first supporting pins and the second supporting pins and the processing end of the part can be made equal, so that the stability of different positions of the processing end of the part can be kept consistent, so that the uniformity of different positions of the processing end of the part can be improved during processing, thereby improving the processing effect.

[0020] In some embodiments, among the three clamping mechanisms, the first supporting pins and the second supporting pins of at least two of the clamping mechanisms are located on the same plane.

[0021] By adopting the above structure, the first supporting pins and the second supporting pins of different clamping mechanisms are located on the same plane, so that the stability of the clamping mechanism in clamping and fixing the parts can be further improved. As a result, the vibration generated during the processing of the parts can be reduced, the vibration marks generated during the processing can be avoided, and the surface finish and processing accuracy of the parts can be improved.

[0022] In some embodiments, the fixture further includes: a detection mechanism, which is disposed on the bracket to detect the deformation of the part.

[0023] By adopting the above structure, the deformation of the part can be detected by the detection mechanism, thereby preventing the part from being deformed too much when the clamping mechanism clamps and fixes the part, thereby affecting the processing accuracy and processing effect.

[0024] In some embodiments, the detection mechanism includes: a dial indicator, the dial indicator is arranged on the frame, and the probe of the dial indicator abuts against the part.

[0025] By adopting the above structure and detecting the deformation of the parts through a dial indicator, the detection accuracy can be improved, and then the processing accuracy and processing effect of the parts can be improved.

[0026] In some embodiments, two dial indicators are provided, and the probes of the two dial indicators are respectively in contact with the first plate body and the second plate body.

[0027] By adopting the above structure, the first plate body and the second plate body are respectively inspected by using two dial indicators, so that the deformation of the first plate body and the second plate body can be detected, thereby avoiding excessive deformation of the first plate body and the second plate body when the clamping mechanism clamps and fixes the parts, thereby affecting the processing accuracy and processing effect.

[0028] These and other aspects of the invention will become more apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following further illustrates the various features of the present invention and the relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, some features are not shown in actual proportion, and some drawings may omit the conventional features in the field involved in the present application and are not necessary for the present application, or additionally show the features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows: Figure 1 It is a three-dimensional structural diagram of the parts in this application; Figure 2 This is a schematic diagram of the three-dimensional structure of the clamp in Example 1 for clamping and fixing a part; Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the fixture; Figure 4 for Figure 2 Schematic diagram of the front side orthographic projection structure of the middle fixture; Figure 5 It is a schematic diagram of the three-dimensional structure of the clamp in Example 2 for clamping and fixing the parts; Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure of the fixture; Figure 7 for Figure 5 Schematic diagram of the front side orthographic projection structure of the middle fixture; Figure 8 for Figure 5 A schematic diagram of the three-dimensional structure of the second supporting pin and the abutment plate; Fig. 9 for Figure 5 Schematic diagram of the front side projection structure of the second supporting pin and the abutment plate.

[0030] Description of Reference Numerals 10 fixture; 100 bracket; 110 mounting opening; 120 first supporting plate; 130 second supporting plate; 200 clamping mechanism; 210 first supporting pin; 220 second supporting pin; 230 abutting plate; 240 fixing screw; 250 adjusting nut; 300 detecting mechanism; 310 detecting arm; 311 supporting arm; 320 dial indicator; 321 measuring head; 20 part; 21 first plate body; 22 second plate body; 23 third plate body; 24 machining end. DETAILED DESCRIPTION

[0031] The words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0032] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements. It should therefore be interpreted as specifying the presence of the features, integers or components mentioned, but does not exclude the presence or addition of one or more other features, integers or components and groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0033] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0034] Below, in conjunction with the accompanying drawings, possible embodiments of the clamp 10 in the present application are exemplarily described.

[0035] The present application provides a clamp 10 for fixing a part 20, wherein the part 20 has a first plate 21, a second plate 22 and a third plate 23, wherein the first plate 21 and the second plate 22 are arranged on the third plate 23 to form a U shape. The clamp 10 includes a bracket 100 and a clamping mechanism 200, wherein the bracket 100 is provided with an installation opening 110 for accommodating the part 20. There are three clamping mechanisms 200, which are arranged on the bracket 100 and are respectively located at corresponding positions of the first plate 21, the second plate 22 and the third plate 23, and clamp and fix the first plate 21, the second plate 22 and the third plate 23 respectively. Thus, the first plate 21, the second plate 22 and the third plate 23 constituting the U-groove structure can be clamped and fixed respectively by the three clamping mechanisms 200, thereby improving the firmness of the part 20, reducing the vibration generated during the processing of the part 20, avoiding the generation of vibration marks during the processing, and improving the surface finish and processing accuracy of the part 20.

[0036] In some embodiments, the clamping mechanism 200 includes a first support nail 210 and a second support nail 220, at least one of the first support nail 210 and the second support nail 220 of each clamping mechanism 200 is threadedly connected to the bracket 100, and is respectively located on both sides of the corresponding first plate 21, second plate 22, and third plate 23. Specifically, among the first support nail 210 and the second support nail 220, the first support nail 210 can be threadedly connected to the bracket 100, and the second support nail 220 can be fixed on the bracket 100, or the second support nail 220 can be threadedly connected to the bracket 100, and the first support nail 210 can be fixed on the bracket 100, or both the first support nail 210 and the second support nail 220 can be threadedly connected to the bracket 100. Therefore, by rotating the first support nail 210 or the second support nail 220 to make the first support nail 210 and the second support nail 220 close to or away from each other, the part 20 is clamped, fixed, or released. By rotating the first support nail 210 and / or the second support nail 220, the first support nail 210 and the second support nail 220 can be moved closer to or farther from the corresponding first plate 21, second plate 22, and third plate 23, so that when the part 20 needs to be fixed, the first support nail 210 and the second support nail 220 can clamp and fix the first plate 21, the second plate 22, and the third plate 23. In addition, by threading the first support nail 210 and the second support nail 220 with the bracket 100, the position of the first support nail 210 and the second support nail 220 clamping the part 20 can be adjusted, so that the clamp 10 can clamp and fix parts 20 of different sizes and specifications. In this way, the adaptability range of the clamp 10 can be improved.

[0037] In some embodiments, the axes of the first support pin 210 and the second support pin 220 are respectively perpendicular to the corresponding first plate 21, second plate 22, and third plate 23. Thus, by making the axes of the first support pin 210 and the second support pin 220 respectively perpendicular to the corresponding first plate 21, second plate 22, and third plate 23, the stability of the first support pin 210 and the second support pin 220 when clamping the first plate 21, second plate 22, and third plate 23 can be improved. Thus, the vibration generated during the processing of the part 20 can be reduced, the vibration marks generated during the processing can be avoided, and the surface finish and processing accuracy of the part 20 can be improved.

[0038] In some embodiments, the axis of the first support pin 210 coincides with the axis of the corresponding second support pin 220. Thus, by making the axis of the first support pin 210 coincide with the axis of the corresponding second support pin 220, the forces exerted by the first support pin 210 and the second support pin 220 on the first plate 21, the second plate 22, and the third plate 23 can coincide in the thickness direction of the first plate 21, the second plate 22, and the third plate 23, thereby improving the stability when the first support pin 210 and the second support pin 220 clamp the first plate 21, the second plate 22, and the third plate 23. Accordingly, the vibration generated during the machining of the part 20 can be reduced, the vibration marks during machining can be avoided, and the surface finish and machining accuracy of the part 20 can be improved.

[0039] In some embodiments, the first support pins 210 and the second support pins 220 are arranged in pairs, and the clamping mechanism 200 has multiple pairs of first support pins 210 and second support pins 220. Thus, by providing multiple pairs of first support pins 210 and second support pins 220, the clamping mechanism 200 can clamp and fix the first plate 21, the second plate 22, and the third plate 23 at multiple positions, thereby improving the stability when the clamping mechanism 200 clamps the first plate 21, the second plate 22, and the third plate 23. Accordingly, the vibration generated during the machining of the part 20 can be reduced, the vibration marks during machining can be avoided, and the surface finish and machining accuracy of the part 20 can be improved.

[0040] In some embodiments, among the multiple pairs of first support pins 210 and second support pins 220 of the clamping mechanism 200, abutting plates 230 are rotatably connected to the ends of the multiple first support pins 210 and / or the ends of the multiple second support pins 220.

[0041] With the above structure, by rotatably connecting the abutting plates 230 to the ends of the multiple first support pins 210 and the ends of the multiple second support pins 220, the first support pin 210 and the second support pin 220 can abut against the first plate 21, the second plate 22, or the third plate through the abutting plates 230. Thus, the contact area with the first plate 21, the second plate 22, or the third plate can be increased, thereby improving the stability of clamping the first plate 21, the second plate 22, or the third plate. Accordingly, the vibration generated during the machining of the part 20 can be reduced, the vibration marks during machining can be avoided, and the surface finish and machining accuracy of the part 20 can be improved.

[0042] In some embodiments, in the clamping mechanism 200 corresponding to the first plate body 21 and the second plate body 22, both ends of a plurality of second support pins 220 are respectively connected to an abutment plate 230, and at least one of the two abutment plates 230 and the second support pin 220 can be adjusted in the axial position of the second support pin 220, so that the two abutment plates 230 are respectively abutted against the inner sides of the first plate body 21 and the second plate body 22.

[0043] With the above structure, by setting abutment plates 230 at both ends of the second support nail 220, the abutment plates 230 at both ends of the second support nail 220 can respectively abut against the inner surface of the first plate body 21 and the second plate body 22. Therefore, it is not necessary to set a connection structure with the second support nail 220 on the bracket, thereby simplifying the structure of the bracket. At the same time, by making the abutment plate 230 and the second support nail 220 adjustable in the axial direction of the second support nail 220, the abutment plate 230 can be adjusted according to the distance between the first plate body 21 and the second plate body 22, so as to adapt to parts 20 of different sizes and models.

[0044] In some embodiments, multiple pairs of first support pins 210 and second support pins 220 of the clamping mechanism 200 are located on the same plane. Thus, by making multiple pairs of first support pins 210 and second support pins 220 of the clamping mechanism 200 located on the same plane, the force applied by the clamping mechanism 200 on the first plate 21, the second plate 22, and the third plate 23 can be made more uniform. Specifically, the distances between each pair of first support pins 210 and second support pins 220 and the processing end of the part 20 can be made equal, so that the stability of different positions of the processing end of the part 20 can be kept consistent, so that the uniformity of different positions of the processing end of the part 20 can be improved during processing, thereby improving the processing effect.

[0045] In some embodiments, the first supporting pins 210 and the second supporting pins 220 of at least two of the three clamping mechanisms 200 are located on the same plane. Thus, by making the first supporting pins 210 and the second supporting pins 220 of different clamping mechanisms 200 located on the same plane, the stability of the clamping mechanism 200 clamping and fixing the part 20 can be further improved. Thus, the vibration generated during the processing of the part 20 can be reduced, the vibration marks generated during the processing can be avoided, and the surface finish and processing accuracy of the part 20 can be improved.

[0046] In some embodiments, the fixture 10 further includes: a detection mechanism 300, which is disposed on the bracket 100 and detects the deformation of the part 20. Thus, the deformation of the part 20 can be detected by the detection mechanism 300, thereby preventing the part 20 from being deformed too much when the clamping mechanism 200 clamps and fixes the part 20, thereby affecting the processing accuracy and processing effect.

[0047] In some embodiments, the detection mechanism 300 includes: a dial gauge 320, the dial gauge 320 is arranged on the frame, and the probe 321 of the dial gauge 320 abuts against the part 20. Therefore, by detecting the deformation of the part 20 through the dial gauge 320, the detection accuracy can be improved, and then the processing accuracy and processing effect of the part 20 can be improved.

[0048] In some embodiments, two dial gauges 320 are provided, and the probes 321 of the two dial gauges 320 are respectively in contact with the first plate 21 and the second plate 22. Thus, by using the two dial gauges 320 to detect the first plate 21 and the second plate 22 respectively, the deformation of the first plate 21 and the second plate 22 can be detected, so as to avoid excessive deformation of the first plate 21 and the second plate 22 when the clamping mechanism 200 clamps and fixes the part 20, thereby affecting the processing accuracy and processing effect.

[0049] In some embodiments, the dial indicator 320 may also be replaced by a micrometer or other devices for measuring, which is not limited thereto.

[0050] The above content is an exemplary description of a possible embodiment of the clamp 10. Next, in conjunction with the accompanying drawings, the specific structure of the clamp 10 is described in detail in a possible embodiment.

[0051] Example 1 Figure 1 FIG. 2 is a schematic diagram of the three-dimensional structure of the part 20 in Example 1. Figure 1 As shown, the part 20 includes a first plate 21, a second plate 22 and a third plate 23. The first plate 21 and the second plate 22 are arranged on both sides of the third plate 23 and are arranged perpendicular to the third plate 23, so that the part 20 forms a U shape. One end of the part 20 is a processing end 24, which needs to be processed by a machine tool, a milling machine or other equipment.

[0052] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamp 10 in Example 1 clamping and fixing the part 20; Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the clamp 10; Figure 4 for Figure 2 The front side projection structure diagram of the middle fixture 10 is shown. Figure 2-Figure 4 As shown, the fixture 10 includes a bracket 100 and a clamping mechanism 200 and a detection mechanism 300 disposed on the bracket 100. The clamping mechanism 200 is used to clamp and fix the part 20 on the bracket 100. After the part 20 is clamped and fixed, the detection mechanism 300 is used to detect the deformation of the part 20.

[0053] like Figure 1-Figure 3As shown in the figure, the bracket 100 is integrally in the shape of a square frame, and a rectangular mounting opening 110 is formed at the middle position of the bracket 100. On the left and right sides of the mounting opening 110 of the bracket 100, a first support plate 120 is provided respectively. A second support plate 130 extends vertically downward from the top of the mounting opening 110, so that the second support plate 130 is located at the middle position between the two first support plates 120 and is arranged parallel to the first support plates 120. Thus, after the processing end 24 of the part 20 extends into the mounting opening 110, the two first support plates 120 can be located on the outer sides of the first plate body 21 and the second plate body 22 and be parallel to the first plate body 21 and the second plate body 22. The second support plate 130 extends into the position between the first plate body 21 and the second plate body 22 from the opening position of the U-shaped structure of the part 20.

[0054] As Figure 1-Figure 3 shown, three clamping mechanisms 200 are provided. One clamping mechanism 200 is arranged on one first support plate 120 and the second support plate 130 for clamping and fixing the first plate body 21. One clamping mechanism 200 is arranged on the other first support plate 120 and the second support plate 130 for clamping and fixing the second plate body 22. One clamping mechanism 200 is arranged on the bracket 100 at the upper and lower positions of the mounting opening 110 for clamping and fixing the third plate body 23.

[0055] As Figure 1-Figure 3 shown, the clamping mechanism 200 includes a pair of first support pins 210 and second support pins 220 arranged in pairs. Among them, the two clamping mechanisms 200 located on the first support plate 120 and the second support plate 130 include three pairs of first support pins 210 and second support pins 220, and the three pairs of first support pins 210 and second support pins 220 are in the same vertical plane. The axes of each pair of first support pins 210 and second support pins 220 coincide and are perpendicular to the first support plate 120 and the second support plate 130. The first support pin 210 is threadedly connected to the first support plate 120, and the second support pin 220 is threadedly connected to the second support plate 130. When clamping and fixing the first plate body 21 and the second plate body 22, the axes of the first support pin 210 and the second support pin 220 are perpendicular to the first plate body 21 and the second plate body 22. By rotating the first support pin 210 and the second support pin 220, each pair of first support pins 210 and second support pins 220 can be made closer to clamp and fix the first plate body 21 and the second plate body 22. The first support plate 120 and the second support plate 130 between the two clamping mechanisms 200 located on the first support plate 120 and the second support plate 130 are staggeredly arranged in the vertical direction, so that the second support pins 220 on the second support plate 130 can be staggered to avoid interference.

[0056] As Figure 1-Figure 3As shown, the clamping mechanism 200 disposed on the bracket 100 at the upper and lower positions of the mounting opening 110 includes a pair of first support nails 210 and second support nails 220. The axes of the first support nails 210 and the second support nails 220 coincide and are disposed vertically. The first support nail 210 is threadedly connected to the upper position of the mounting opening 110 on the bracket 100, and the second support nail 220 is threadedly connected to the lower position of the mounting opening 110 on the bracket 100. The first support screw is relatively long and extends downward to a position exceeding the second support plate 130. The first support screw and the second support screw are rotated to bring the first support screw and the second support screw close to each other, thereby clamping and fixing the third plate body 23.

[0057] like Figure 1-Figure 3 As shown, the detection mechanism 300 includes a detection arm 310 and a dial indicator 320. Among them, one end of the detection arm 310 is set on the bracket 100, including a plurality of mutually hinged support arms 311. The dial indicator 320 is a digital display dial indicator, which is set at the other end of the detection arm 310. By rotating each support arm 311 of the detection wall, the dial indicator 320 and the probe 321 of the dial indicator 320 can be moved to different positions of the part 20 to detect the deformation of the part 20 after the part 20 is clamped and fixed.

[0058] like Figure 1-Figure 3 As shown, two detection mechanisms 300 are provided and installed on the bracket 100 , and are respectively located on one side of the bracket 100 away from the two first support plates 120 . The two detection mechanisms 300 respectively detect the deformation of the first plate body 21 and the second plate body 22 .

[0059] Example 2 Figure 5 It is a schematic diagram of the three-dimensional structure of the clamp 10 in Example 2 for clamping and fixing the part 20; Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure of the clamp 10; Figure 7 for Figure 5 A schematic diagram of the front side orthographic projection structure of the middle fixture 10; Figure 8 for Figure 5 A schematic diagram of the three-dimensional structure of the second supporting pin 220 and the abutting plate 230; Fig. 9 for Figure 5 Schematic diagram of the front side projection structure of the second supporting pin 220 and the abutment plate 230. Figure 5-Figure 9 As shown, the clamp 10 in the second embodiment is different from the clamp 10 in the first embodiment in that the second supporting pin 220 of the clamping mechanism 200 corresponding to the first plate 21 and the second plate 22 does not need to be installed on the bracket 100. In the following, the specific structure of the position of the second supporting pin 220 of the clamping mechanism 200 corresponding to the first plate 21 and the second plate 22 is described in detail in conjunction with the accompanying drawings. like Figure 5-Figure 9 As shown, the clamping mechanisms 200 corresponding to the first plate body 21 and the second plate body 22 share three second support nails 220, which are arranged between the first plate body 21 and the second plate body 22, on the same vertical plane, and perpendicular to the first plate body 21 and the second plate body 22. One end of the three second support nails 220 is mounted on one abutment plate 230, and the other end is mounted on another abutment plate 230. Among them, the two abutment plates 230 are connected to the second support nail 220 in a sliding manner along the axial direction of the second support nail 220, so that the spacing between the abutment plates 230 at both ends of the second support nail 220 can be adjusted.

[0060] The connection structure of the sliding connection between the abutment plate 230 and the second support nail 220 may specifically be that a matching connection hole is provided on the abutment plate 230 at a position corresponding to the second support nail 220, and the distance between the two abutment plates 230 is adjusted by adjusting the depth of the end of the second support nail 220 inserted into the connection hole on the abutment plate 230. A fixing screw 240 is also provided on the abutment plate 230, and the fixing screw 240 is threadedly connected to the abutment plate 230 and extends into the connection hole along the radial direction of the connection hole. When the second support nail 220 is inserted into the predetermined position in the connection hole, the fixing screw 240 is rotated so that the fixing screw 240 abuts against the second support nail 220 in the connection hole, thereby fixing the second support nail 220.

[0061] like Figure 5-Figure 9 As shown, two adjusting nuts 250 are threadedly connected to each second supporting nail 220, and the adjusting nuts 250 are rotated to make the two adjusting nuts 250 respectively abut against the abutment plates 230 at both ends of the second supporting nail 220, thereby realizing the positioning of the abutment plates 230. Therefore, the length of the second supporting screw extending into the connecting hole can be adjusted by rotating the adjusting nuts 250, thereby adjusting the distance between the two abutment plates 230 at both ends of the second supporting nail 220.

[0062] As described above, when the clamp 10 in Example 2 is used to clamp and fix the part 20, the adjusting nut 250 can be first rotated according to the distance between the first plate body 21 and the second plate body 22, so that the distance between the two abutment plates 230 at both ends of the second support nail 220 is adapted to the distance between the first plate body 21 and the second plate body 22. Then, the fixing screw 240 is tightened to fix the second support nail 220 and the abutment plate 230 relatively. The fixed second support nail 220 and the abutment plate 230 are placed between the first plate body 21 and the second plate body 22, so that the two abutment plates 230 are respectively fitted with the first plate body 21 and the second plate body 22 to provide support for the first plate body 21 and the second plate body 22. Adjust the positions of the second support nail 220 and the abutment plate 230 so that the two ends of the second support nail 220 are aligned with the first support nails 210 corresponding to the first plate body 21 and the second plate body 22, i.e., the axis of the first support nail 210 coincides with the axis of the second support nail 220, thereby improving the stability and firmness of the clamping. Finally, rotate the first support nails 210 corresponding to the first plate body 21 and the second plate body 22 to clamp the first plate body 21 and the second plate body 22 between the first support nail 210 and the abutment plate 230.

[0063] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, all of which belong to the protection scope of the present invention.

Claims

1. A clamp, characterized in that: Used to fix a part, the part has a first plate, a second plate and a third plate, the first plate and the second plate are arranged on the third plate to form a U shape; comprising: A bracket, wherein a mounting opening is provided on the bracket for accommodating the parts; The clamping mechanism is provided with three clamping mechanisms, which are arranged on the bracket and are respectively located at corresponding positions of the first plate body, the second plate body and the third plate body, and respectively clamp and fix the first plate body, the second plate body and the third plate body.

2. The clamp according to claim 1, characterized in that: The clamping mechanism includes a first supporting nail and a second supporting nail. At least one of the first supporting nail and the second supporting nail of each clamping mechanism is threadedly connected to the bracket and is respectively located on both sides of the corresponding first plate body, the second plate body, and the third plate body.

3. The clamp according to claim 2, characterized in that: The axes of the first supporting nail and the second supporting nail are respectively perpendicular to the corresponding first plate body, the second plate body, and the third plate body.

4. The clamp according to claim 3, characterized in that: The axis of the first supporting pin coincides with the axis of the corresponding second supporting pin.

5. The clamp according to claim 2, characterized in that: The first supporting nail and the second supporting nail are arranged in pairs, and the clamping mechanism has a plurality of pairs of the first supporting nail and the second supporting nail.

6. The clamp according to claim 5, characterized in that: In the multiple pairs of the first supporting nails and the second supporting nails of the clamping mechanism, ends of multiple first supporting nails and / or ends of multiple second supporting nails are rotatably connected to abutment plates.

7. The clamp according to claim 6, characterized in that In the clamping mechanisms corresponding to the first plate body and the second plate body, both ends of a plurality of the second support nails are respectively connected to one of the abutment plates, and at least one of the two abutment plates and the second support nail are adjustable in the axial position of the second support nail, so that the two abutment plates are respectively abutted against the inner sides of the first plate body and the second plate body.

8. The clamp according to claim 5, characterized in that: The multiple pairs of the first supporting nails and the second supporting nails of the clamping mechanism are located on the same plane.

9. The clamp according to claim 6, characterized in that: Among the three clamping mechanisms, the first supporting pins and the second supporting pins of at least two of the clamping mechanisms are located on the same plane.

10. The clamp according to any one of claims 1 to 9, characterized in that: Also includes: A detection mechanism is arranged on the bracket to detect the deformation of the part.

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