A double clamping assembly fixture

By designing a double-clip assembly clamp, using a combined structure of floating arm and fixed arm controlled by frame components and hydraulic system, the existing automated handling clamps are solved, and efficient clamping and placement of multiple workpieces is achieved, and the automation level of the production line is improved.

CN115958621BActive Publication Date: 2025-06-17CHANGSHA CTR ROBOTICS
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Patent Information

Application Number
CN202211701877.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-28
Publication Date
2025-06-17
Estimated Expiration
2042-12-28

AI Technical Summary

Technical Problem

The existing automated handling fixtures are inefficient and have poor compatibility during the grab and transfer process, and are difficult to compatible with the size differences of multiple workpieces and rotating vehicle tables, resulting in high costs and limited automation flow of the assembly of the entire production line.

Method used

A double-clip assembly clamp is designed, which adopts a combined structure of frame components, single fixed arm, single floating arm, multiple fixed arm and multiple floating arm. The movement of the floating arm and fixed arm is controlled through the hydraulic system, so as to achieve simultaneous clamping and placement of multiple workpieces, which is compatible with the size differences of different workpieces.

Benefits of technology

It improves the automation level of the production line, enhances the clamping range and compatibility, reduces costs, can adapt to the clamping and placement of various workpieces, stabilizes the parts and does not fall off, and has high local differences in adaptation.

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Abstract

The invention discloses a double-clamp assembly fixture, comprising a frame assembly, a single fixed arm, a single floating arm, multiple fixed arms and multiple floating arms, the frame assembly comprises a fixed frame and a main hydraulic drive, the single floating arm and the multiple floating arms comprise a first floating clamp arm, a floating clamping assembly and an elastic floating assembly, the floating clamping assembly is movably connected with the first floating clamp arm or the second floating clamp arm through the elastic floating assembly, the single fixed arm comprises a first fixed clamp arm and a first fixed clamping assembly, the multiple fixed arms comprise a second fixed clamp arm, a secondary clamping hydraulic drive and a second fixed clamping assembly, the second fixed clamping assembly at the bottom is connected in transmission with the secondary clamping hydraulic drive, the secondary clamping hydraulic drive and the main hydraulic drive use a shared oil circuit with the front and rear oil ports reversely connected, and the main hydraulic drive is connected in transmission with the single floating arm and the multiple floating arms. The invention can meet the requirements of clamping multiple workpieces simultaneously under different working conditions, has a wide clamping range, high compatibility, and can improve the automation level of the production line.
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Description

Technical Field

[0001] The present invention belongs to the field of automation technology, and particularly relates to a double-clamping assembly fixture. Background Art

[0002] At present, automated handling and transfer fixtures are widely used in industries such as engine cylinder head grinding. However, during the grasping and transfer process, single-workpiece handling is adopted, resulting in a relatively long time-consuming back-and-forth movement under the same process conditions, low efficiency, and insufficient production capacity of the entire line. At the same time, for simple processes, a rotating carrier table is added to increase the placement quantity, thereby reducing the waiting time for clamping and handling. This will lead to too high costs, and when there are specific grinding requirements in subsequent processes, the size of the rotating carrier table is too large to be realized.

[0003] Existing handling fixtures have problems such as low handling efficiency and low compatibility during multi-clamping cooperation. When there are various products, it is not conducive to the compatible use of the fixture and the rotating carrier table, and is not conducive to the automated flow of the entire production line assembly.

[0004] In summary, there is an urgent need to provide a double-clamping assembly fixture that can simultaneously clamp and place multiple workpieces under different working conditions, has a wide clamping range, high compatibility, a high level of multi-poses, and can improve the automation level of the production line. Summary of the Invention

[0005] The object of the present invention is to provide a double-clamping assembly fixture that can simultaneously clamp and place multiple workpieces under different working conditions, has a wide clamping range, high compatibility, a high level of multi-poses, and can improve the automation level of the production line.

[0006] The above object is achieved through the following technical scheme: a double-clamp assembly fixture, including a frame assembly, a single fixed arm, a single floating arm, multiple fixed arms and multiple floating arms, the single fixed arm and the single floating arm are arranged on one side of the frame assembly, and the multiple fixed arms and the multiple floating arms are arranged on the other side of the frame assembly, the frame assembly includes a fixed frame and a main hydraulic drive component, the main hydraulic drive component is fixed on the fixed frame, the single fixed arm and the multiple fixed arms are fixedly arranged at predetermined positions of the fixed frame, the single floating arm and the multiple floating arms are respectively arranged opposite to the single fixed arm and the multiple fixed arms, the single floating arm includes a first floating clamping arm, a floating clamping assembly and an elastic floating assembly, the multiple floating arms include a second floating clamping arm, multiple groups of floating clamping assemblies and an elastic floating assembly, the floating clamping assembly is movably connected to the first floating clamping arm or the second floating clamping arm through the elastic floating assembly, thereby ensuring that the floating clamping assembly is close to the workpiece when clamping the workpiece, and the multiple groups of floating clamping assemblies on the multiple floating arms The cam is configured to move the plurality of movable members together and the plurality of movable members together. The plurality of movable members are configured to move the plurality of movable members together and the plurality of movable members are coupled to the plurality of movable members.

[0007] The present invention is used for the clamping operation in the workpiece assembly process. In the specific application process, a single floating arm cooperates with a single fixed arm, and multiple floating arms cooperate with multiple fixed arms. The hydraulic system controls the main hydraulic driving component to drive the single floating arm and the multiple floating arms to move close to the single fixed arm and the multiple fixed arms respectively to clamp the workpiece. The workpieces are sequentially placed on the combination table and stacked and combined with spacers in the middle; the application of the floating clamping component and the elastic floating component on the single floating arm and the multiple floating arms has a certain floating swing angle, ensuring that the floating clamping component closely adheres to the workpiece when clamping the workpiece, and adapting to the clamping of various cylinder head surfaces with non-unique inclined postures; when the multiple floating arms clamp the combined workpiece, since the front and rear oil ports of the secondary clamping hydraulic driving component and the main hydraulic driving component are reversely connected and share the oil circuit, although the second fixed clamping component on the multiple fixed arms has a short stroke and will extend to the contact workpiece first, when the main hydraulic driving component continues to clamp, the pressure of the main hydraulic driving component is greater than the force of the secondary clamping hydraulic driving component, which will force the secondary clamping hydraulic driving component to retract when clamping the workpiece until another stacked workpiece fixture, so as to ensure compatibility with the dimensional differences of the cast workpieces, ensure the real-time clamping of different batches and different workpieces, firmly hold the workpieces without dropping, have a wide application range and high adaptability to local differences, can be compatible with the simultaneous clamping of two workpieces of various castings, and can save costs.

[0008] When clamping two stacked workpieces simultaneously, due to the difficulty in maintaining the consistency of the length dimensions of the rough cast workpieces, in order to adapt to and be compatible with this deviation during clamping, the fixture of the present invention adopts one clamping plate group fixed and the other clamping plate group telescopic and floating. It can ensure stable clamping without shaking within the length dimension deviation of ±5 mm for the same type of workpiece and workpieces of the same batch. The core casting process deviation is less than 5 mm (affected by the overall double-clamping floating arm at the other end), so it can also be compatible with large length differences within different batches and has a high compatibility with multiple specifications.

[0009] A further technical solution is that a first guide rail and a second guide rail are provided at a predetermined position of the fixed frame. A first slider and a second slider are provided on the first guide rail and the second guide rail. The first slider and the second slider can slide along the first guide rail and the second guide rail respectively. The single floating arm and the multiple floating arms are respectively fixed on the first slider and the second slider. In specific application, the first guide rail and the second guide rail are arranged on the opposite guide rail mounting surfaces on the upper and lower sides of the fixed frame, and the main hydraulic driving component and the oil cylinder rear seat are reversely arranged on the inner cavity surface of the fixed frame and are fixedly connected through locking bolts.

[0010] A further technical solution is that the elastic floating assembly includes a spring floating member and a connecting seat. The connecting seat is rotatably connected to the first floating clamping arm or the second floating clamping arm through a pin shaft. One end of the spring floating member is fixed on the first floating clamping arm or the second floating clamping arm, and the other end is connected to the connecting seat or the floating clamping assembly. The floating clamping assembly is connected to the connecting seat. With such a setting, the floating clamping assembly is rotatably connected to the first floating clamping arm or the second floating clamping arm through the connecting seat, and the spring floating member plays a certain buffering and limiting role, ensuring that the floating clamping assembly has a certain floating swing angle to adapt to the clamping of various cylinder head surfaces with non-unique inclined postures.

[0011] A further technical solution is that the floating clamping assembly includes a floating pressing plate and a clamping member. The floating pressing plate is fixed on the connecting seat, and the clamping member is fixed on the floating pressing plate. By adjusting the installation position of the clamping member on the floating pressing plate, it is possible to simultaneously clamp multiple types of cylinder heads.

[0012] A further technical solution is that the spring floating member includes a spring and a guide post. One end of the spring is connected to the first floating clamping arm or the second floating clamping arm, and the other end is connected to the floating pressing plate. The guide post is arranged inside the spring. One end of the guide post is fixed to the floating pressing plate and the other end passes through the first floating clamping arm or the second floating clamping arm.

[0013] A further technical solution is that both the first fixed clamping assembly and the second fixed clamping assembly include a clamping plate and a clamping member arranged on the clamping plate.

[0014] A further technical solution is that the clamping member at least includes a top pin and an anti-falling screw.

[0015] A further technical solution is that an oil cylinder front seat and an oil cylinder rear seat are provided on the fixing frame. The oil cylinder rear seat is fixed on the fixing frame through a locking bolt. The main hydraulic driving member is arranged on the oil cylinder rear seat. The oil cylinder front seat is connected to the first slider and the second slider.

[0016] Compared with the prior art, the advantages of the present invention are that the multi-fixed arms and multi-floating arm clamping points can be compatible with a variety of workpieces and stably clamp multiple stacked and combined workpieces at the same time. Through the secondary clamping hydraulic drive of the multi-fixed arms, it allows for product differentiation in the existing engine casting process in the foundry industry and consistency differences in workpiece production, greatly reducing the requirements for the sand casting process. Therefore, the present invention is suitable for clamping, stacking and combining, and transporting workpieces with fixed grinding processes, that is, the workpieces can be placed horizontally, vertically or rotated during grinding, and separate clamping of different workpieces can also be achieved; the main hydraulic drive and the secondary clamping hydraulic drive share the same control method, enabling two different workpieces to ensure accurate and stable clamping under simple structural control; the double-clamping fixture can clamp multiple workpieces at one time, increasing the flexibility at the same working node, saving time and cost while greatly improving efficiency; the two hydraulic drives with different sizes and strokes utilize the same hydraulic pressure, which can ensure that the secondary clamping hydraulic drive is always in a clamped state according to the difference in the outer dimension of the workpiece without affecting the clamping of another stacked workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0018] Figure 1 FIG. is a schematic structural diagram of a double-clamping assembly fixture according to an embodiment of the present invention;

[0019] Figure 2 FIG. is a schematic structural diagram of a frame assembly according to an embodiment of the present invention;

[0020] Figure 3 FIG. is a schematic structural diagram of a single fixed arm according to an embodiment of the present invention;

[0021] Figure 4 FIG. is a schematic structural diagram of a single floating arm according to an embodiment of the present invention;

[0022] Figure 5 FIG. is a schematic structural diagram of a double fixed arm according to an embodiment of the present invention;

[0023] Figure 6 FIG. is a schematic structural diagram of a double floating arm according to an embodiment of the present invention.

[0024] In the figure:

[0025] 1 Frame assembly 2 Single fixed arm 3 Single floating arm 4 Multi-fixed arms

[0026] 5 Multi-floating arms 7 First fixed clamping arm 8 Clamping plate 9 Top pin

[0027] 10 Anti-falling screw, 12 Secondary clamping hydraulic drive, 13 First floating clamping arm, 14 Floating pressure plate

[0028] 15 Connecting seat, 16 Elastic floating component, 17 Pin shaft, 18 Second fixed clamping arm

[0029] 19 Second floating clamping arm, 101 Fixed frame, 102 First slider, 103 First guide rail

[0030] 104 Main hydraulic drive, 105 Front seat of oil cylinder, 106 Rear seat of oil cylinder, 107 Locking bolt

[0031] 108 Second slider, 109 Second guide rail Detailed implementation mode

[0032] The present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of the features in the embodiments and different embodiments in this document according to the description of this document.

[0033] The embodiments of the present invention are as follows. Refer to Figures 1 to 6A double-clamp assembly fixture comprises a frame assembly 1, a single fixed arm 2, a single floating arm 3, multiple fixed arms 4 and multiple floating arms 5, wherein the single fixed arm 2 and the single floating arm 3 are arranged on one side of the frame assembly 1, and the multiple fixed arms 4 and the multiple floating arms 5 are arranged on the other side of the frame assembly 1, the frame assembly 1 comprises a fixed frame 101 and a main hydraulic drive member 104, the main hydraulic drive member 104 is fixed on the fixed frame 101, the single fixed arm 2 and the multiple fixed arms 4 are fixedly arranged at predetermined positions of the fixed frame 101, the single floating arm 3 The single floating arm 3 comprises a first floating clamping arm 13, a floating clamping assembly and an elastic floating assembly 16, and the multi-floating arm 5 comprises a second floating clamping arm 19, a plurality of floating clamping assemblies and an elastic floating assembly 16. The floating clamping assembly is movably connected to the first floating clamping arm 13 or the second floating clamping arm 19 through the elastic floating assembly 16, thereby ensuring that the floating clamping assembly is in close contact with the workpiece when the workpiece is clamped. The plurality of floating clamping assemblies on the multi-floating arm 5 are arranged up and down. On the second floating clamp arm 19, the single fixed arm 2 includes a first fixed clamp arm 7 and a first fixed clamping assembly, the first fixed clamping assembly is fixed on the first fixed clamp arm 7, the multi-fixed arm 4 includes a second fixed clamp arm 18, a secondary clamping hydraulic drive 12 and multiple groups of second fixed clamping assemblies, the secondary clamping hydraulic drive 12 is fixed on the second fixed clamp arm 18, the multiple groups of second fixed clamping assemblies are arranged up and down, at least the second fixed clamping assembly at the bottom is transmission connected to the secondary clamping hydraulic drive 12, and the rest The second fixed clamping assembly is fixedly arranged on the second fixed clamping arm 18, the secondary clamping hydraulic drive component 12 and the main hydraulic drive component 104 use the front and rear oil ports to reversely connect and share the oil circuit, the first floating clamping arm 13 and the second floating clamping arm 19 are slidingly connected to the fixed frame 101, the main hydraulic drive component 104 is transmission-connected to the single floating arm 3 and the multiple floating arms 5 and is used to drive the single floating arm 3 and the multiple floating arms 5 to slide along the fixed frame 101, thereby changing the spacing between the single floating arm 3 and the single fixed arm 2, and the spacing between the multiple floating arms 5 and the multiple fixed arms 4.

[0034] The present invention is used for the clamping work in the workpiece assembly process. In the specific application process, the single floating arm 3 cooperates with the single fixed arm 2, and the multi-floating arm 5 cooperates with the multi-fixed arm 4. The hydraulic system controls the main hydraulic driving member 104 to drive the single floating arm 3 and the multi-floating arm 5 to move close to the single fixed arm 2 and the multi-fixed arm 4 respectively to clamp the workpiece. The workpieces are sequentially placed on the combination table and are stacked and combined with spacers in the middle. The application of the floating clamping assembly and the elastic floating assembly 16 on the single floating arm 3 and the multi-floating arm 5 has a certain floating swing angle, ensuring that the floating clamping assembly closely adheres to the workpiece when clamping the workpiece, adapting to the clamping of various cylinder head surface inclination postures that are not unique. When the multi-floating arm 5 clamps the combined workpiece, since the front and rear oil ports of the secondary clamping hydraulic driving member 12 and the main hydraulic driving member 104 are reversely connected and share the oil circuit, although the second fixed clamping assembly on the multi-fixed arm 4 has a short stroke and will extend to contact the workpiece first, when the main hydraulic driving member 104 continues to clamp, the pressure of the main hydraulic driving member 104 is greater than that of the secondary clamping hydraulic driving member 12, which will force the secondary clamping hydraulic driving member 12 to retract when clamping the workpiece until it reaches another stacked workpiece fixture. In this way, it can ensure compatibility with the dimensional differences of the cast workpieces, guarantee the real-time clamping of workpieces in different batches and different types, ensure firm clamping without dropping parts, has a wide application range and high adaptability to local differences, can be compatible with the simultaneous clamping of two workpieces of various castings, and can save costs.

[0035] When clamping two stacked workpieces simultaneously, due to the difficulty in maintaining the consistency of the length dimensions of the rough casting workpieces, in order to adapt to and be compatible with this deviation during clamping, the fixture of the present invention adopts 8 groups of fixed clamping plates and 8 groups of telescopic and floating clamping plates. It can ensure firm clamping without shaking within the length dimension deviation of ±5 mm for the same type of workpieces and workpieces in the same batch. The sand core casting process deviation is less than 5 mm (affected by the overall double-clamping floating arm at the other end). Therefore, it can also be compatible with large length differences within different batches and has high compatibility with various specifications.

[0036] Based on the above embodiments, in another embodiment of the present invention, as Figure 2 , a first guide rail 103 and a second guide rail 109 are provided at a predetermined position of the fixed frame 101. A first slider 102 and a second slider 108 are provided on the first guide rail 103 and the second guide rail 109. The first slider 102 and the second slider 108 can slide along the first guide rail 103 and the second guide rail 109 respectively. The single floating arm 3 and the multi-floating arm 5 are respectively fixed on the first slider 102 and the second slider 108. In specific application, the first guide rail 103 and the second guide rail 109 are arranged on the opposite guide rail mounting surfaces on the upper and lower sides of the fixed frame 101, and the main hydraulic driving member 104 and the oil cylinder rear seat 106 are arranged in the opposite direction on the inner cavity surface of the fixed frame 101 and are fixedly connected through a locking bolt 107.

[0037] Based on the above embodiments, in another embodiment of the present invention, as Figure 4and Figure 6 The elastic floating assembly 16 includes a spring floating member and a connecting seat 15. The connecting seat 15 is rotatably connected to the first floating clamping arm 13 or the second floating clamping arm 19 through a pin shaft 17. One end of the spring floating member is fixed on the first floating clamping arm 13 or the second floating clamping arm 19, and the other end is connected to the connecting seat 15 or the floating clamping assembly, and the floating clamping assembly is connected to the connecting seat 15. With such a setting, the floating clamping assembly is rotatably connected to the first floating clamping arm 13 or the second floating clamping arm 19 through the connecting seat 15, and the spring floating member plays a certain buffering and limiting role, ensuring that the floating clamping assembly has a certain floating swing angle to adapt to the clamping of various cylinder head surface inclination postures that are not unique.

[0038] Based on the above embodiments, in another embodiment of the present invention, as Figure 4 and Figure 6 The floating clamping assembly includes a floating pressing plate 14 and a clamping member. The floating pressing plate 14 is fixed on the connecting seat 15, and the clamping member is fixed on the floating pressing plate 14. By adjusting the installation position of the clamping member on the floating pressing plate 14, it is possible to simultaneously clamp multiple types of cylinder heads.

[0039] Based on the above embodiments, in another embodiment of the present invention, as Figure 4 The spring floating member includes a spring and a guide post. One end of the spring is connected to the first floating clamping arm 13 or the second floating clamping arm 19, and the other end is connected to the floating pressing plate 14. The guide post is arranged inside the spring. One end of the guide post is fixed to the floating pressing plate 14, and the other end passes through the first floating clamping arm 13 or the second floating clamping arm 19.

[0040] Based on the above embodiments, in another embodiment of the present invention, as Figure 3 and Figure 5 Both the first fixed clamping assembly and the second fixed clamping assembly include a clamping plate 8 and a clamping member provided on the clamping plate 8.

[0041] Based on the above embodiments, in another embodiment of the present invention, as Figures 3 to 6 The clamping member at least includes a top pin 9 and an anti-falling screw 10.

[0042] Based on the above embodiments, in another embodiment of the present invention, as Figure 2 An oil cylinder front seat 105 and an oil cylinder rear seat 106 are provided on the fixing frame 101. The oil cylinder rear seat 106 is fixed on the fixing frame 101 through a locking bolt 107. The main hydraulic driving member 104 is arranged on the oil cylinder rear seat 106. The oil cylinder front seat 105 is connected to the first slider 102 and the second slider 108.

[0043] Compared with the prior art, the advantages of the present invention are that the clamping points of the multiple fixed arms 4 and the multiple floating arms 5 can be compatible with a variety of workpieces and stably clamp multiple stacked combined workpieces at the same time. Through the secondary clamping hydraulic drive 12 of the multiple fixed arms 4, it allows for product differentiation in the existing engine casting process in the casting industry and consistency differences in workpiece production, greatly reducing the requirements for the sand casting process. Therefore, the present invention is suitable for clamping, stacking and combining, and transporting workpieces with a fixed grinding process, that is, the workpieces can be placed horizontally, vertically or repositioned during grinding, and separate clamping of different workpieces can also be achieved; the main hydraulic drive 104 and the secondary clamping hydraulic drive 12 share the same control method, enabling two different workpieces to ensure accurate and stable clamping under a simple structural control; the double-clamping fixture can clamp multiple workpieces at one time, increasing the flexibility at the same working node, saving time and cost while greatly improving efficiency; two hydraulic drives with different sizes and strokes, using the same hydraulic pressure, can ensure that the secondary clamping hydraulic drive 12 always maintains a tightened state according to the difference in the outer dimensions of the workpiece without affecting the clamping of another stacked workpiece.

[0044] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A double-clamping assembly fixture, characterized in that, The frame assembly comprises a single fixed arm, a single floating arm, multiple fixed arms and multiple floating arms, wherein the single fixed arm and the single floating arm are arranged on one side of the frame assembly, and the multiple fixed arms and the multiple floating arms are arranged on the other side of the frame assembly, the frame assembly comprises a fixed frame and a main hydraulic driving component, the main hydraulic driving component is fixed on the fixed frame, the single fixed arm and the multiple fixed arms are fixedly arranged at predetermined positions of the fixed frame, the single floating arm and the multiple floating arms are respectively arranged opposite to the single fixed arm and the multiple fixed arms, the single floating arm comprises a first floating clamping arm, a floating clamping assembly and an elastic floating assembly, the multiple floating arms comprise a second floating clamping arm, multiple groups of floating clamping assemblies and an elastic floating assembly, the floating clamping assembly is movably connected to the first floating clamping arm or the second floating clamping arm through the elastic floating assembly, thereby ensuring that the floating clamping assembly is tightly attached to the workpiece when clamping the workpiece, and the multiple groups of floating clamping assemblies on the multiple floating arms are arranged up and down on the second floating clamping arm The single fixed arm includes a first fixed clamping arm and a first fixed clamping assembly, the first fixed clamping assembly is fixed on the first fixed clamping arm, and the multiple fixed arms include a second fixed clamping arm, a secondary clamping hydraulic drive and multiple groups of second fixed clamping assemblies, the secondary clamping hydraulic drive is fixed on the second fixed clamping arm, the multiple groups of second fixed clamping assemblies are arranged up and down, at least the lowermost second fixed clamping assembly is transmission connected to the secondary clamping hydraulic drive, and the remaining second fixed clamping assemblies are fixedly arranged on the second fixed clamping arm, the secondary clamping hydraulic drive and the main hydraulic drive adopt a shared oil circuit with front and rear oil ports reversely connected, the first floating clamping arm and the second floating clamping arm are slidably connected to the fixed frame, the main hydraulic drive is transmission connected to the single floating arm and the multiple floating arms and is used to drive the single floating arm and the multiple floating arms to slide along the fixed frame, thereby changing the spacing between the single floating arm and the single fixed arm, and the spacing between the multiple floating arms and the multiple fixed arms.

2. The double-clamping assembly fixture according to claim 1, characterized in that, The fixed frame is provided with a first guide rail and a second guide rail at predetermined positions, and the first guide rail and the second guide rail are provided with a first slider and a second slider, the first slider and the second slider can slide along the first guide rail and the second guide rail respectively, and the single floating arm and the multiple floating arms are fixed on the first slider and the second slider respectively.

3. The double-clamping assembly fixture according to claim 2, characterized in that, The elastic floating assembly includes a spring floating member and a connecting seat, and the connecting seat is rotatably connected to the first floating clamp arm or the second floating clamp arm through a pin shaft. One end of the spring floating member is fixed to the first floating clamp arm or the second floating clamp arm, and the other end is connected to the connecting seat or the floating clamping assembly, and the floating clamping assembly is connected to the connecting seat.

4. The double-clamping assembly fixture according to claim 3, characterized in that, The floating clamping assembly comprises a floating pressure plate and a clamping member, wherein the floating pressure plate is fixed on the connecting seat, and the clamping member is fixed on the floating pressure plate.

5. The double-clamping assembly fixture according to claim 4, characterized in that, The spring floating member includes a spring and a guide post. One end of the spring is connected to the first floating clamping arm or the second floating clamping arm, and the other end is connected to the floating pressure plate. The guide post is arranged inside the spring. One end of the guide post is fixedly connected to the floating pressure plate, and the other end passes through the first floating clamping arm or the second floating clamping arm.

6. The double-clamping assembly fixture according to claim 4, characterized in that, Both the first fixed clamping assembly and the second fixed clamping assembly include a clamping plate and a clamping member arranged on the clamping plate.

7. The double-clamping assembly fixture according to claim 6, characterized in that, The clamping member at least includes a top pin and an anti-falling screw.

8. The double-clamping assembly fixture according to claim 7, characterized in that, An oil cylinder front seat and an oil cylinder rear seat are arranged on the fixed frame. The oil cylinder rear seat is fixed to the fixed frame through a locking bolt. The main hydraulic driving member is arranged on the oil cylinder rear seat. The oil cylinder front seat is connected to the first slider and the second slider.

Citation Information

Patent Citations

  • Battery box shell gripping apparatus with self-locking and floating functions

    CN114055504A

  • Grabbing clamp and robot

    CN209111102U