Clamping tool

Abstract

The application discloses a clamping tool, a tool body is used for placing a part to be clamped; a first limiting assembly comprises first linear driving members and first limiting blocks which are arranged at intervals along an X direction, and the first linear driving members and the first limiting blocks are matched to position the part in the X direction; a second limiting assembly comprises second linear driving members and second limiting blocks which are arranged at intervals along a Y direction, and the second linear driving members and the second limiting blocks are matched to position the part in the Y direction; a third limiting assembly comprises a supporting seat and third linear driving members, the supporting seat is used for supporting the bottom of the part, and the driving end of the third linear driving members can move towards or away from the supporting seat to press or release the part in a Z direction. Through cooperation of the first limiting assembly, the second limiting assembly and the third limiting assembly, automatic limiting of a clamping process of the part can be realized, and clamping efficiency and stability are improved.

Description

Technical Field

[0001] This application belongs to the field of component clamping technology, and specifically relates to a clamping fixture. Background Technology

[0002] Because mechanical parts are typically large, they need to be clamped onto a worktable before machining. The common machining process uses a CNC gantry machining center with a right-angle head, where the part is clamped onto the horizontal worktable of the gantry machining center, with only "support and clamping" at the machining position. However, the current clamping technology only limits the height of the part, resulting in poor clamping stability and affecting the machining effect. Utility Model Content

[0003] The purpose of this application is to provide a clamping fixture to improve the stability of component clamping.

[0004] To achieve the above objectives, this application provides a clamping fixture, comprising: A tooling body for placing the parts to be clamped; and the following provided on the tooling body: The first limiting component includes a first linear drive member and a first limiting block arranged at intervals along the X direction. The first linear drive member and the first limiting block cooperate to position the component in the X direction. The second limiting component includes a second linear drive member and a second limiting block arranged at intervals along the Y direction. The second linear drive member and the second limiting block cooperate to position the component in the Y direction. The third limiting component includes a support base and a third linear drive member. The support base is used to support the bottom of the component, and the drive end of the third linear drive member is movable toward or away from the support base to press or release the component in the Z direction.

[0005] In some embodiments, the first linear drive is an X-axis push cylinder, the piston rod of which is retractable toward the first limiting block, and the drive end of the piston rod of the X-axis push cylinder and the first limiting block cooperate to clamp or release the component on both sides along the X direction.

[0006] In some embodiments, the second linear drive is a Y-axis push cylinder, the piston rod of which is retractable toward the second limiting block, and the drive end of the piston rod of the Y-axis push cylinder and the second limiting block cooperate to clamp or release the component on both sides along the Y direction.

[0007] In some embodiments, the third limiting component further includes: Mounting base; A clamping rod is pivotally connected to the mounting base. One end of the clamping rod is hinged to the drive end of the third linear drive member, and the other end has a clamping portion and extends above the support base. The third linear drive member is used to drive the clamping rod to swing so that the clamping portion moves closer to or away from the support base.

[0008] In some embodiments, the number of the third limiting components is multiple sets, and the clamping fixture also includes multiple sets of fourth limiting components. The multiple sets of fourth limiting components and the multiple sets of third limiting components are arranged at intervals. The fourth limiting components are used to assist in limiting the component along the Z direction.

[0009] In some embodiments, the fourth limiting component includes a fourth linear drive member and a fifth linear drive member with their drive ends arranged opposite each other along the Z direction. The drive end of the fourth linear drive member moves to support the component from the bottom, and the drive end of the fifth linear drive member moves to press the component down from the top.

[0010] In some embodiments, the support surface height of the support seat in each group of the third limiting components is the same.

[0011] In some embodiments, the third, fourth, and fifth linear drive components are all hydraulic cylinders. The clamping fixture also includes a control unit and a working oil circuit for supplying oil to each hydraulic cylinder. The fixture body is also provided with a hydraulic connector for docking with a hydraulic station. The control unit is used to control the hydraulic connector to dock with the hydraulic station to pump hydraulic oil to the working oil circuit.

[0012] In some embodiments, the clamping fixture further includes a plurality of pre-guide rods, which are spaced apart and form a limiting space for the component to be positioned, the limiting space limiting the component in the circumferential direction.

[0013] In some embodiments, the tooling body includes a horizontal support body and a vertical support body connected to one side of the horizontal support body. A first support surface is formed on the horizontal support body for the component to be placed horizontally, and a second support surface is formed on the side of the vertical support body opposite to the horizontal support body.

[0014] The above technical solution involves setting a first limiting component, a second limiting component, and a third limiting component on the tooling body. The first limiting component includes a first linear drive member and a first limiting block arranged at intervals along the X-axis; the second limiting component includes a second linear drive member and a second limiting block arranged at intervals along the Y-axis; and the third limiting component includes a support base and a third linear drive member. When a component is clamped, it is placed on the tooling body, and the support base supports the bottom of the component. The first linear drive member and the first limiting block cooperate to position the component in the X-axis; the second linear drive member and the second limiting block cooperate to position the component in the Y-axis; and the driving end of the third linear drive member can move towards the support base to press the component in the Z-axis. This achieves clamping and limiting of the component on the tooling body, improving clamping stability and operational efficiency.

[0015] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the clamping fixture of this application; Figure 2 This is a front view schematic diagram of the clamping fixture of this application; Figure 3 This is a schematic diagram of the clamping fixture of this application in a horizontal state when it is clamped with a rotary platform; Figure 4 This is a schematic diagram of the fixture in this application in a vertical position when it is clamped with a rotating platform.

[0017] Explanation of reference numerals in the attached figures Detailed Implementation

[0018] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0019] The clamping fixture according to this application is described below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2As shown, this application provides a clamping fixture, including a fixture body 100 and a first limiting component 20, a second limiting component 30, and a third limiting component 40 disposed on the fixture body 100; the fixture body 100 is used to place the parts to be clamped; the first limiting component 20 includes a first linear drive member and a first limiting block 22 arranged at intervals along the X direction, the first linear drive member and the first limiting block 22 cooperating to position the parts in the X direction; the second limiting component 30 includes a second linear drive member and a second limiting block 32 arranged at intervals along the Y direction, the second linear drive member and the second limiting block 32 cooperating to position the parts in the Y direction; the third limiting component 40 includes a support base 41 and a third linear drive member 42, the support base 41 is used to support the bottom of the parts, and the driving end of the third linear drive member 42 can move toward or away from the support base 41 to press or release the parts in the Z direction.

[0021] In this embodiment, before processing the component, the component to be processed is placed on the fixture body 100. The first linear drive pushes the component along the X direction toward the first limiting block 22 until it abuts against the first limiting block 22, thereby limiting the component in the X direction. The second linear drive pushes the component along the Y direction toward the second limiting block 32 until it abuts against the second limiting block 32, thereby limiting the component in the Y direction. Since the support base 41 of the third limiting component 40 supports the bottom of the component, the bottom of the component can be positioned in the Z direction. Then, the driving end of the third linear drive 42 presses the component downward, thereby limiting the component in the Z direction. This application, through the cooperation of the first limiting component 20, the second limiting component 30, and the third limiting component 40, can achieve automatic limiting of the component clamping process, improve clamping stability and efficiency, and the entire clamping fixture has high versatility and can be adapted to the clamping of different types of components.

[0022] In some embodiments, the first linear drive is an X-direction push cylinder 21, the piston rod of the X-direction push cylinder 21 can extend and retract toward the first limiting block 22, and the drive end of the piston rod of the X-direction push cylinder 21 and the first limiting block 22 cooperate to clamp or release the components on both sides along the X direction.

[0023] The drive end of the Y-direction pushing cylinder 31 and the first limiting block 22 are arranged at intervals along the X-direction. When the part is placed on the tooling body 100, the piston rod of the X-direction pushing cylinder 21 extends to apply an X-direction force to the outer peripheral wall of the part, causing the part to move towards the first limiting block 22 along the X-direction until the other side of the part abuts against the first limiting block 22, thus limiting the part in the X-direction. After the part is processed, the piston rod of the X-direction pushing cylinder 21 retracts to release the X-direction limitation on the part.

[0024] In some embodiments, the second linear drive is a Y-direction push cylinder 31, the piston rod of which can extend and retract toward the second limiting block 32, and the drive end of the piston rod of the Y-direction push cylinder 31 cooperates with the second limiting block 32 to clamp or release the components on both sides along the Y direction.

[0025] The second limiting block 32 consists of two blocks spaced apart along the X-direction, and the Y-direction pushing cylinder 31 is located on the centerline between the two second limiting blocks 32. When the part is placed on the tooling body 100, the piston rod of the Y-direction pushing cylinder 31 extends to apply a Y-direction force to the outer peripheral wall of the part, causing the part to move along the Y-direction towards the second limiting block 32 until the other side of the part abuts against the second limiting block 32 along the Y-direction, thus limiting the part in the Y-direction. After the part is processed, the piston rod of the Y-direction pushing cylinder 31 retracts to release the Y-direction limitation on the part.

[0026] In some embodiments, the third limiting assembly 40 further includes a mounting base 43 and a clamping rod 44; the clamping rod 44 is pivotally connected to the mounting base 43, one end of the clamping rod 44 is hinged to the driving end of the third linear drive member 42, and the other end has a clamping portion and extends above the support base 41. The third linear drive member 42 is used to drive the clamping rod 44 to swing so that the clamping portion moves closer to or away from the support base 41.

[0027] In this embodiment, the height of the support base 41 cannot be adjusted, and the support base 41 serves to support the bottom of the component. When the component is placed on the tooling body 100, the support base 41 supports the bottom of the component, completing the positioning of the component in the Z direction. Then, the linear movement of the driving end of the third linear drive member 42 can drive one end of the clamping rod 44 to swing, so that the other end of the clamping rod 44 can move towards the support base 41 until the clamping part of the clamping rod 44 abuts against the top surface of the component on the support base 41, thereby applying a downward force to the component to achieve Z-direction limiting of the component.

[0028] In some embodiments, there are multiple sets of third limiting components 40, and the clamping fixture also includes multiple sets of fourth limiting components 50. The multiple sets of fourth limiting components 50 and the multiple sets of third limiting components 40 are arranged at intervals. The fourth limiting components 50 are used to assist in limiting the components along the Z direction.

[0029] Among them, the third limiting component 40 is a fixed limiting component in the Z direction, and the fourth limiting component 50 is a floating limiting component in the Z direction. Based on the Z-direction limiting of the component by multiple sets of third limiting components 40, multiple sets of fourth limiting components 50 provide floating Z-direction limiting for the component. That is to say, the fourth limiting component 50 can adjust its own support point and clamping point according to the height of the component in the Z direction, so as to completely fix the component and improve the limiting stability of the component in the Z direction.

[0030] In some embodiments, the fourth limiting assembly 50 includes a fourth linear drive member 51 and a fifth linear drive member 52, whose drive ends are arranged opposite each other along the Z-direction. The drive end of the fourth linear drive member 51 moves to support the component from the bottom, and the drive end of the fifth linear drive member 52 moves to press the component downward from the top. After the third limiting assembly 40 completes the Z-direction limiting of the component, the drive end of the fourth linear drive member 51 moves upward until it contacts the bottom end surface of the component, and then the drive end of the fifth linear drive member 52 moves downward and applies a downward pressing force to the top end surface of the component, thereby completely fixing the component.

[0031] In some embodiments, the support surface height of the support seat 41 in each group of third limiting components 40 is the same. Preferably, since three points determine a surface, the number of third limiting components 40 can be set to three groups, so that the number of support seats 41 that provide support on the entire tooling body 100 is also three. The support surfaces of the three support seats 41 are at the same height, which can provide equal height support for the bottom of the parts.

[0032] In some embodiments, the third linear drive 42, the fourth linear drive 51, and the fifth linear drive 52 are all hydraulic cylinders. The clamping fixture also includes a control unit and a working oil circuit for supplying oil to each hydraulic cylinder. The fixture body 100 is also provided with a hydraulic connector 70 for docking with the hydraulic station. The control unit is used to control the hydraulic connector 70 to dock with the hydraulic station so as to pump hydraulic oil to the working oil circuit.

[0033] In this embodiment, after the tooling is in place, the hydraulic station plug automatically connects with the hydraulic connector 70 to supply oil to the working oil circuit for clamping the tooling, thereby driving the action of multiple hydraulic cylinders. During operation, the hydraulic station control unit can automatically clamp or unload parts with one click after the parts are placed. After the loading and unloading work is completed, the hydraulic station plug automatically disconnects.

[0034] In some embodiments, the clamping fixture also includes a plurality of pre-guide rods 60, which are arranged at intervals and form a limiting space for the preliminary coarse positioning of the parts. The limiting space limits the parts in the circumferential direction.

[0035] This application enables rapid placement and clamping of parts by setting pre-guide rods 60 for coarse positioning at different cylinder positions on the tooling body 100. Furthermore, the setting of multiple pre-guide rods 60 can also prevent parts from damaging the cylinders when clamping parts horizontally, and can also achieve rapid placement and clamping.

[0036] In some embodiments, the tooling body 100 includes a horizontal support 11 and a vertical support 12 connected to one side of the horizontal support 11. A first support surface is formed on the horizontal support 11 for placing components horizontally, and the vertical support 12 has a second support surface on the side opposite to the horizontal support 11.

[0037] Taking the rotary platform 80 as an example, before machining the rotary platform 80, the tooling body 100 is first placed in a vertical position, such as... Figure 3 As shown, in the horizontal position, the horizontal support 11 is horizontal, the vertical support 12 is vertical, and the rotary platform 80 is placed on the horizontal support 11. Multiple limiting components on the horizontal support 11 limit the rotary platform 80 in the X, Y, and Z directions. After clamping, when machining of the rotary platform 80 is required, the fixture body 100 is rotated 90°, as shown. Figure 4 As shown, this ensures that the horizontal support 11 is in a vertical position, the vertical support 12 is in a horizontal position, and the entire tooling body 100 is in a vertical position. Thus, the second support surface provides overall support, and the rotary platform 80 is in a vertical position facing the processing mechanism 90. Figure 4 As shown, the machining mechanism 90 can be a milling cutter. The milling cutter processes the mounting holes and surfaces of the rotary platform 80 from the side of the rotary platform 80 away from the horizontal support 11. Compared with the prior art, where the tooling body 100 is in a vertical position for machining, the rotary platform of this application is horizontally clamped and then vertically machined, which greatly improves the length of the machining tool, eliminates the need for a vibration damping tool, and reduces tool cost by more than 50%. In addition, the shorter the tool, the better the tool rigidity, and the cutting efficiency is greatly improved.

[0038] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A clamping fixture, characterized in that, include: A tooling body (100) for placing parts to be clamped; and provided on the tooling body (100): The first limiting component (20) includes a first linear drive member and a first limiting block (22) arranged at intervals along the X direction. The first linear drive member and the first limiting block (22) cooperate to position the component in the X direction. The second limiting component (30) includes a second linear drive member and a second limiting block (32) arranged at intervals along the Y direction. The second linear drive member and the second limiting block (32) cooperate to position the component in the Y direction. The third limiting component (40) includes a support base (41) and a third linear drive (42). The support base (41) is used to support the bottom of the component, and the drive end of the third linear drive (42) is movable toward or away from the support base (41) to press or release the component in the Z direction.

2. The clamping fixture according to claim 1, characterized in that, The first linear drive component is an X-direction push cylinder (21). The piston rod of the X-direction push cylinder (21) can extend and retract toward the first limiting block (22). The drive end of the piston rod of the X-direction push cylinder (21) and the first limiting block (22) cooperate to clamp or release the component on both sides along the X direction.

3. The clamping fixture according to claim 1, characterized in that, The second linear drive component is a Y-axis push cylinder (31). The piston rod of the Y-axis push cylinder (31) can extend and retract toward the second limiting block (32). The drive end of the piston rod of the Y-axis push cylinder (31) and the second limiting block (32) cooperate to clamp or release the component on both sides along the Y direction.

4. The clamping fixture according to claim 1, characterized in that, The third limiting component (40) further includes: Mounting bracket (43); A clamping rod (44) is pivotally connected to the mounting base (43). One end of the clamping rod (44) is hinged to the drive end of the third linear drive (42), and the other end has a clamping portion and extends above the support base (41). The third linear drive (42) is used to drive the clamping rod (44) to swing so that the clamping portion moves closer to or away from the support base (41).

5. The clamping fixture according to claim 1, characterized in that, The number of the third limiting components (40) is multiple sets, and the clamping fixture also includes multiple sets of fourth limiting components (50). The multiple sets of fourth limiting components (50) and the multiple sets of third limiting components (40) are arranged at intervals. The fourth limiting components (50) are used to assist in limiting the parts along the Z direction.

6. The clamping fixture according to claim 5, characterized in that, The fourth limiting component (50) includes a fourth linear drive member (51) and a fifth linear drive member (52) with their drive ends arranged opposite each other along the Z direction. The drive end of the fourth linear drive member (51) moves to support the component from the bottom, and the drive end of the fifth linear drive member (52) moves to press the component down from the top.

7. The clamping fixture according to claim 5, characterized in that, The support surface height of the support seat (41) in each of the third limiting components (40) is the same.

8. The clamping fixture according to claim 6, characterized in that, The third linear drive (42), the fourth linear drive (51) and the fifth linear drive (52) are all hydraulic cylinders. The clamping fixture also includes a control unit and a working oil circuit for supplying oil to each hydraulic cylinder. The fixture body (100) is also provided with a hydraulic connector (70) for docking with the hydraulic station. The control unit is used to control the hydraulic connector (70) to dock with the hydraulic station so as to pump hydraulic oil to the working oil circuit.

9. The clamping fixture according to any one of claims 1 to 8, characterized in that, The clamping fixture also includes a plurality of pre-guide rods (60), which are arranged at intervals and form a limiting space for the placement of the component. The limiting space limits the component in the circumferential direction.

10. The clamping fixture according to any one of claims 1 to 8, characterized in that, The tooling body (100) includes a horizontal support (11) and a vertical support (12) connected to one side of the horizontal support (11). A first support surface is formed on the horizontal support (11) for the component to be placed horizontally. The vertical support (12) has a second support surface on the side away from the horizontal support (11).

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