Part three-coordinate measuring clamp

Abstract

The utility model relates to the technical field of clamps, in particular to a part three-coordinate measuring clamp which comprises two clamping assemblies, the two clamping assemblies are symmetrically arranged, each clamping assembly comprises a base, a supporting rod and a cantilever, a fastener is arranged on the top face of the base, the base and a workbench are fixed through the fastener, and the supporting rod is arranged on the supporting rod. The supporting rod is fixed to the top face of the base, a connecting piece is arranged at the top of the supporting rod, one end of the cantilever and the top of the supporting rod are fixed through the connecting piece, and a hanging lug is fixed to the end, away from the supporting rod, of the cantilever.

Description

Technical Field

[0001] This application relates to the technical field of fixtures, and particularly to a three-coordinate measuring fixture for parts. Background Art

[0002] A three-coordinate measuring instrument is a high-precision measuring instrument that can determine the spatial position of an object through three mutually perpendicular coordinate axes (X, Y, Z), thereby measuring the size, shape, and position of the object. The working principle of a three-coordinate measuring machine is to place the object to be measured in the measuring space, obtain the coordinate positions of each measuring point on the object through a contact or non-contact detection system, and then calculate the geometric dimensions, shape, and position of the object through software.

[0003] In the manufacturing industry, three-coordinate measuring instruments are used to accurately measure the geometric shape and dimensions of workpieces. A three-coordinate measuring instrument includes a workbench and a probe. A fixture is provided on the top of the workbench. Before measurement, the workpiece needs to be stabilized on the top of the workbench through the fixture, and then the workpiece is measured through the probe.

[0004] However, in the current three-coordinate measurement process, the design and use of fixtures are often a cumbersome and time-consuming process. Usually, multiple adjustments and clampings are required to complete the measurement of all aspects of the workpiece, thereby increasing the operation difficulty of the staff. Summary of the Invention

[0005] In order to improve the operation convenience of the fixture, this application provides a three-coordinate measuring fixture for parts.

[0006] A three-coordinate measuring fixture for parts provided by this application adopts the following technical solutions:

[0007] A three-coordinate measuring fixture for parts includes clamping components. There are two clamping components, and the two clamping components are symmetrically arranged. Each clamping component includes a base, a support rod, and a cantilever. A fastener is provided on the top surface of the base, and the base is fixed to the workbench through the fastener. The support rod is fixed on the top surface of the base, a connecting piece is provided at the top of the support rod, and one end of the cantilever is fixed to the top of the support rod through the connecting piece. A hanging ear is fixed at the end of the cantilever away from the support rod.

[0008] By adopting the above technical solutions, there are two clamping components, and the two clamping components are symmetrically arranged, so that the two hanging ears are opposite to each other on the same side. Hanging holes are respectively formed at both ends of the workpiece, the diameter of the hanging ear is adapted to the diameter of the hanging hole, and the two hanging ears are respectively inserted into the hanging holes close to them in an adapted manner. The two clamping components support the workpiece, and the fixture clamps the workpiece, and then the probe measures the workpiece.

[0009] This application clamps the workpiece by inserting the hanging ears into the hanging holes, which is simple and convenient to operate, thus improving the operational convenience of the fixture. When the diameter of the workpiece is large, the distance between the two hanging ears needs to be adjusted. At this time, the fastener is disassembled, and then the position of the base is adjusted, so as to adjust the distance between the two clamping components and increase the distance between the two hanging ears. When it is difficult to match the diameter of the hanging hole of the workpiece with the diameter of the hanging ear, the connecting piece can be disassembled to separate the cantilever from the support rod, and then other suitable cantilevers are replaced for installation, thereby improving the applicability of the fixture.

[0010] Preferably, the base includes a fixed block and a connecting block. There are two fixed blocks, and the two fixed blocks are arranged parallel to each other. The connecting block is fixed between the two fixed blocks.

[0011] By adopting the above technical solution, the connecting block connects the two fixed blocks, thereby increasing the width of the base, making the base support the support rod and the cantilever more stable. At the same time, compared with using a rectangular base of the same width and length, this application can save materials and reduce waste of resources.

[0012] Preferably, mounting grooves are respectively formed through the top surfaces of the two fixed blocks. The extending direction of the mounting grooves is parallel to the long side direction of the fixed blocks. The number of fasteners is adapted to the number of mounting grooves. One end of the fastener passes through the mounting groove and is connected to the workbench.

[0013] By adopting the above technical solution, under the action of the mounting groove, the position of the base on the top surface of the workbench can be adjusted. When it is necessary to adjust the distance between the two hanging ears, the fastener is loosened, and then the position of the base is adjusted. The fastener moves along the long side direction of the mounting groove, so as to adjust the distance between the two clamping components, making it more convenient to adjust the distance between the two clamping components.

[0014] Preferably, a connecting groove is formed on the top surface of the support rod. One end of the cantilever is located in the connecting groove. The bottom surface of the cantilever abuts against the top surface of the support rod, and one side of the cantilever abuts against the side wall of the support rod.

[0015] By adopting the above technical solution, under the action of the connecting groove, the contact area between the cantilever and the support rod can be increased, and at the same time, the support rod can also support the cantilever, thereby improving the connection stability between the cantilever and the support rod and reducing the situation of shaking and instability between the cantilever and the support rod.

[0016] Preferably, there are two connecting pieces, and the two connecting pieces are distributed along the vertical direction of the support rod.

[0017] By adopting the above technical solution, under the action of the two connecting pieces, the connection stability between the cantilever and the support rod can be further improved.

[0018] Preferably, the number of mounting grooves on one of the fixing blocks is two, and the two mounting grooves are distributed along the long side of the fixing block.

[0019] By adopting the above technical solution, there are two mounting grooves on one fixing block, and the two fasteners respectively pass through the mounting grooves close to them and are fixed to the workbench, so that the connection stability between the base and the workbench can be further improved.

[0020] Preferably, the connecting block is located in the middle of the fixing block.

[0021] By adopting the above technical solution, the connecting block is located in the middle of the fixing block, so that the force received by the connecting block can be more evenly distributed on the fixing block, reducing the situation that the fixing block is easily damaged due to uneven force.

[0022] Preferably, the support rod is fixed in the middle of the top surface of the connecting block.

[0023] By adopting the above technical solution, the support rod is fixed in the middle of the connecting block, so that the force received by the support rod can be more evenly distributed to the connecting block, reducing the situation that the connecting block is easily damaged due to uneven force.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. There are two clamping components, and the two clamping components are symmetrically arranged, so that the two hanging ears are located opposite each other on the same side. Hanging holes are respectively formed at both ends of the workpiece, the diameter of the hanging ear is adapted to the diameter of the hanging hole, and the two hanging ears are respectively inserted into the hanging holes close to them in an adapted manner. The two clamping components support the workpiece, and the fixture clamps the workpiece, and then the side head measures the workpiece.

[0026] The present application clamps the workpiece by inserting the hanging ears into the hanging holes, which is simple and convenient to operate, thus improving the operation convenience of the fixture. When the diameter of the workpiece is large, the distance between the two hanging ears needs to be adjusted. At this time, the fastener is disassembled, and then the position of the base is adjusted, so as to adjust the distance between the two clamping components and increase the distance between the two hanging ears. When it is difficult to adapt the diameter of the hanging hole of the workpiece to the diameter of the hanging ear, the connecting piece can be disassembled, so as to separate the cantilever from the support rod, and then replace it with other adapted cantilevers for installation, thereby improving the applicability of the fixture.

[0027] 2. Under the action of the installation groove, the position of the base on the top surface of the workbench can be adjusted. When it is necessary to adjust the distance between the two hanging ears, loosen the fastener, and then adjust the position of the base. The fastener moves along the long side direction of the installation groove, thereby adjusting the distance between the two clamping components, making it more convenient to adjust the distance between the two clamping components. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of a partial structure of an embodiment of the present application.

[0030] Figure 3 It is an assembly drawing of the fixture and the workpiece in an embodiment of the present application.

[0031] Description of the reference numerals: 1. Clamping component; 11. Base; 111. Fixed block; 112. Connecting block; 113. Installation groove; 12. Support rod; 121. Connecting groove; 122. Installation hole; 13. Cantilever; 131. Installation block; 132. Connecting hole; 133. Cross bar; 134. Hanging ear; 2. Workpiece. Detailed Description of the Embodiment

[0032] The following further elaborates on the present application Figures 1-3 with reference to the attached drawings.

[0033] An embodiment of the present application discloses a three - coordinate measuring fixture for parts.

[0034] Referring to Figure 1 , a three - coordinate measuring fixture for parts includes a clamping component 1. The clamping component 1 includes a base 11. The base 11 includes a fixed block 111 and a connecting block 112. There are two fixed blocks 111, and the two fixed blocks 111 are arranged relatively parallel. The connecting block 112 is fixed between the two fixed blocks 111. The connecting block 112 is located in the middle of the fixed block 111. After the connecting block 112 is assembled with the two fixed blocks 111, an "I" - shaped structure body is formed. Installation grooves 113 are respectively formed through the top surfaces of the two fixed blocks 111. The extending direction of the installation groove 113 is parallel to the long side direction of the fixed block 111. The number of installation grooves 113 on one fixed block 111 is two, and the two installation grooves 113 are distributed at both ends of the fixed block 111. The installation groove 113 corresponds to the positioning hole on the top surface of the measuring instrument workbench. A fastener (not shown in the drawings) is provided on the top surface of the fixed block 111. In the embodiment of the present application, the fastener is a first bolt. One end of the first bolt passes through the installation groove 113 and the positioning hole at the same time, and the fixed block 111 and the workbench are fixed through the first bolt. Under the action of the installation groove 113, the position of the base 11 on the top surface of the workbench can be adjusted.

[0035] Referring toFigure 1 and Figure 2 The clamping assembly 1 further includes a support rod 12 and a cantilever 13. The bottom surface of the support rod 12 is fixed to the top surface of the connecting block 112. The support rod 12 is vertically arranged in the middle of the connecting block 112. One end of the top surface of the support rod 12 is provided with a connecting groove 121, so that an "L"-shaped connecting platform is formed at the top of the support rod 12. The cantilever 13 includes a mounting block 131. The mounting block 131 is located in the connecting groove 121, so that the bottom surface of the mounting block 131 abuts against the top surface of the support rod 12, and one side of the mounting block 131 abuts against the side wall of the support rod 12.

[0036] Two mounting holes 122 are formed through the side wall of the top of the support rod 12. The two mounting holes 122 are distributed along the vertical direction of the support rod 12. Correspondingly, two connecting holes 132 are formed through the side wall of the mounting block 131. The two connecting holes 132 are distributed along the vertical direction of the mounting block 131. The mounting holes 122 and the connecting holes 132 correspond to each other one by one. A connecting member (not shown in the drawings) is arranged on the side wall of the support rod 12. In the embodiment of the present application, the connecting member is a second bolt. There are two second bolts. The two second bolts respectively pass through the mounting holes 122 close to them and pass through the connecting holes 132 close to them. The mounting block 131 and the support rod 12 are fixed by the second bolts. Under the action of the connecting groove 121, the contact area between the mounting block 131 and the support rod 12 can be increased. At the same time, the support rod 12 can also support the mounting block 131, thereby improving the connection stability between the mounting block 131 and the support rod 12, and further improving the connection stability between the cantilever 13 and the support rod 12, and reducing the situation of shaking and instability between the cantilever 13 and the support rod 12.

[0037] The cantilever 13 further includes a cross bar 133. One end of the cross bar 133 is fixed to the top of one side of the mounting block 131. The long side of the cross bar 133 is perpendicular to the long side of the mounting block 131. One end of the cross bar 133 away from the mounting block 131 on one side is fixed with a hanging ear 134. In the embodiment of the present application, the hanging ear 134 is a cylindrical structure, and the hanging ear 134 is vertically arranged on one side of the cross bar 133.

[0038] Referring to Figure 3 , there are two clamping assemblies 1. The two clamping assemblies 1 are symmetrically arranged, so that the two hanging ears 134 are located opposite to each other on the same side. Hanging holes are respectively formed at both ends of the workpiece 2. The diameter of the hanging ear 134 is adapted to the diameter of the hanging hole. The two hanging ears 134 are respectively inserted into the hanging holes close to them in a matching manner. The two clamping assemblies 1 support the workpiece 2, and the fixture clamps the workpiece 2. Then the side head measures the workpiece 2.

[0039] In this application, the workpiece 2 is clamped by inserting the hanging ears 134 into the hanging holes, which is simple and convenient to operate, thus improving the operational convenience of the fixture. When the diameter of the workpiece 2 is relatively large, the distance between the two hanging ears 134 needs to be adjusted. At this time, loosen the first bolt, and then adjust the position of the base 11. The first bolt moves along the long side direction of the installation groove 113, thereby adjusting the distance between the two clamping components 1 and increasing the distance between the two hanging ears 134. When it is difficult to match the diameter of the hanging hole of the workpiece 2 with the diameter of the hanging ear 134, the second bolt can be disassembled to separate the cantilever 13 from the support rod 12, and then replace it with other suitable cantilevers 13 for installation, thereby improving the applicability of the fixture.

[0040] The above are all the preferred embodiments of this application. This embodiment is only an explanation of this application and does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A three - coordinate measuring fixture for parts, characterized in that, It includes clamping components (1). There are two clamping components (1), and the two clamping components (1) are symmetrically arranged. The clamping component (1) includes a base (11), a support rod (12) and a cantilever (13). A fastener is provided on the top surface of the base (11), and the base (11) is fixed to the workbench through the fastener. The support rod (12) is fixed on the top surface of the base (11), a connecting member is provided at the top of the support rod (12), and one end of the cantilever (13) is fixed to the top of the support rod (12) through the connecting member. A hanging ear (134) is fixed at the end of the cantilever (13) away from the support rod (12).

2. The three - coordinate measuring fixture for a part according to claim 1, characterized in that, The base (11) includes a fixed block (111) and a connecting block (112). There are two fixed blocks (111), and the two fixed blocks (111) are arranged parallel to each other, and the connecting block (112) is fixed between the two fixed blocks (111).

3. A three - coordinate measuring fixture for parts according to claim 2, characterized in that, Installation grooves (113) are respectively formed through the top surfaces of the two fixed blocks (111). The extending direction of the installation groove (113) is parallel to the long side direction of the fixed block (111). The number of the fasteners is adapted to the number of the installation grooves (113), and one end of the fastener passes through the installation groove (113) to connect with the workbench.

4. A three - coordinate measuring fixture for parts according to claim 1, characterized in that, A connecting groove (121) is formed on the top surface of the support rod (12). One end of the cantilever (13) is located in the connecting groove (121). The bottom surface of the cantilever (13) abuts against the top surface of the support rod (12), and one side of the cantilever (13) abuts against the side wall of the support rod (12).

5. A three - coordinate measuring fixture for parts according to claim 1, characterized in that, There are two connecting members, and the two connecting members are distributed along the vertical direction of the support rod (12).

6. A three - coordinate measuring fixture for parts according to claim 3, characterized in that, The number of installation grooves (113) on one fixed block (111) is two, and the two installation grooves (113) are distributed along the long side of the fixed block (111).

7. A three - coordinate measuring fixture for parts according to claim 2, characterized in that, The connecting block (112) is located in the middle of the fixed block (111).

8. A three-coordinate measuring fixture for parts according to claim 2, characterized in that The support rod (12) is fixed in the middle of the top surface of the connecting block (112).

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