Pneumatic clamping device
By designing a pneumatic clamping device using a shell, a clamping member and a cross bar, and using three rotating shafts to control the closure of the cylinder and the clamping part, the existing pneumatic clamping device has been solved, and the existing pneumatic clamping device has been complex structure, vulnerable to corrosion and insufficient clamping force accuracy is achieved, and the effects of flexible operation, precise clamping and extended service life are achieved.
Patent Information
- Application Number
- CN202421686042.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing pneumatic clamping devices have complex structures, and the consumable parts are susceptible to corrosion, and the clamping force accuracy is insufficient, which affects service life and production efficiency.
A pneumatic clamping device is designed, adopting a structure of a housing, a clamping member and a cross bar, and the closure of the cylinder and the clamping part is controlled through three rotating shafts, thereby improving operating flexibility and clamping stability.
Improves operational flexibility and clamping accuracy, reduces failure rate and maintenance difficulty, extends service life, and can easily remove waste materials in the event of failure to avoid equipment damage.
Smart Images
Figure CN222945333U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of clamping devices, in particular to a pneumatic clamping device. Background Art
[0002] The cylinder clamping device is a device commonly used in industrial production lines to clamp workpieces. It uses the pressure of the cylinder to achieve the purpose of clamping the workpiece. With the continuous improvement of the level of industrial automation, the cylinder clamping device plays an increasingly important role in the production line. Pneumatic clamping devices begin to have more intelligent functions. However, there are currently some problems that need to be solved.
[0003] The structure of existing pneumatic clamping devices is relatively complex and may involve designs such as lever mechanisms, which increases the failure rate and maintenance difficulty. The wearing parts of the cylinder clamping device are easily corroded by particulate matter and lubricating oil, resulting in increased wear, which in turn affects the service life of the cylinder clamping device; the current cylinder clamping device has certain shortcomings in the clamping force accuracy. In some production links with high requirements for clamping force, the current cylinder clamping device is difficult to achieve precise clamping force control, resulting in unstable workpiece clamping, affecting production efficiency and product quality. Pneumatic clamping devices have continuously improved their performance and application scope during the development process, but there are still certain problems and challenges in terms of cost, accuracy, structural complexity, and operation and maintenance.
[0004] Therefore, how to design a pneumatic clamping device that is flexible in operation and has high precision has become an urgent problem that technical personnel in this field need to solve. Utility Model Content
[0005] The purpose of the utility model is to provide a pneumatic clamping device to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A pneumatic clamping device is provided, comprising a shell, a clamping member and a cross bar, wherein the shell is hollow inside, the cross bar is fixed inside the shell, a plurality of clamping members are arranged on the cross bar, the clamping member is provided with a first axis, a second axis and a third axis, the three rotating axes are connected to each other, a cylinder is provided between the second axis and the third axis, the clamping member is further provided with a clamping part, the clamping part is composed of a swinging member and a fixing member, the swinging member is fixed to the first axis, the cylinder can control the swinging member to swing up and down through the three rotating axes, the plurality of clamping parts are oriented in the same direction and used in combination, a protrusion is further provided on the fixing member, which matches with a groove of the material.
[0008] Furthermore, the clamping member is provided with a base, and the clamping member is fixed to the inner side of the shell through the base.
[0009] Furthermore, the base is connected to the cylinder via a third axis, and the cylinder can rotate via the third axis.
[0010] Furthermore, the cylinder model is CDJ2D16-30, and a telescopic rod is provided on the top of the cylinder, and the telescopic rod can be extended and retracted according to the rotation of the three rotating axes.
[0011] Furthermore, the top of the telescopic rod is connected to the second shaft.
[0012] Furthermore, the second shaft is fixed on the upper side of the first shaft, the first shaft is provided with a through hole, and the cross bar is passed through the through hole.
[0013] Furthermore, the lower end of the first shaft is connected to a swinging member, the swinging member corresponds to the fixing member, and the end of the swinging member protrudes outside the shell.
[0014] Furthermore, the lower end surface of the fixing member is fixed on the shell, and the upper end surface corresponds to the swinging member, and the fixing member will not move with the rotation of the first shaft, the second shaft and the third shaft.
[0015] Furthermore, the shell includes an upper shell and a lower shell, a cavity is formed inside the upper shell and the lower shell, the lower shell is provided with a bottom plate and a side plate, and the two ends of the cross bar are respectively fixed to the two side plates.
[0016] Furthermore, it also includes a pneumatic device, which controls the extension and rotation of all cylinders to control the closing of the swinging part and the fixing part.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model provides a pneumatic clamping device, wherein three rotating shafts are respectively arranged at the front and rear ends of the cylinder, and the closing of the clamping part is controlled by the coordinated use of the cylinder and the three rotating shafts. The arrangement of the three rotating shafts greatly improves the flexibility of operation, and the clamping members are arranged in sequence on the cross bar, and a protrusion is arranged at the end of the fixing member of each clamping member, and the protrusion corresponds to the side groove of the material plate one by one, thereby improving the stability of clamping. During the material processing process, if factors such as failure occur, the clamping part can be opened by adjusting the telescopic cylinder of the cylinder to take out the waste material, so as to avoid further damage to the equipment by the waste material. The pneumatic clamping device can be used in conjunction with the transport device, and the pneumatic clamping device is fixed on one side of the transport belt for repeated processing. The utility model has the characteristics of flexible operation and high clamping accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a three-dimensional structural diagram of the pneumatic clamping device of the utility model;
[0020] Figure 2This is a bottom view of the pneumatic clamping device of the utility model;
[0021] Figure 3 This is the internal structure diagram of the pneumatic clamping device of the utility model;
[0022] Figure 4 This is a structural diagram of the bottom plate of the pneumatic clamping device of the utility model;
[0023] Figure 5 This is a structural diagram of the clamping group of the pneumatic clamping device of the utility model;
[0024] Figure 6 This is a structural diagram of the clamping member of the pneumatic clamping device of the utility model;
[0025] Figure 7 This is a structural diagram of the swinging member of the pneumatic clamping device of the utility model;
[0026] Figure 8 This is a structural diagram of the fixing parts of the pneumatic clamping device of the utility model;
[0027] The components in the accompanying drawings are marked as follows: 1. upper shell; 2. lower shell; 21. bottom plate; 22. hook; 23. side plate; 24. slide groove; 3. clamping member; 31. fixing member; 32. swinging member; 33. protrusion; 34. first axis; 35. cylinder; 36. base; 37. telescopic rod; 38. second axis; 39. third axis; 4. cross bar. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] See also Figures 1 to 6 , a pneumatic clamping device is provided, including a shell, a clamping member 3 and a cross bar 4, the shell is hollow inside, the cross bar 4 is fixed in the shell, and multiple clamping members 3 are inserted into the cross bar 4, the clamping member 3 is provided with a first axis 34, a second axis 38 and a third axis 39, the three rotating axes are connected to each other, a cylinder 35 is provided between the second axis 38 and the third axis 39, the clamping member 3 is also provided with a clamping part, the clamping part is composed of a swinging member 32 and a fixing member 31, the swinging member 32 is fixed to the first axis 34, the cylinder 35 can control the swinging member 32 to swing up and down through the three rotating axes, and the multiple clamping parts are in the same direction and used in combination.
[0030] See also Figure 6-8The clamping member 3 is provided with a base 36, and the clamping member 3 is fixed to the inner side of the shell through the base 36. The base 36 is connected to the cylinder 35 through the third shaft 39, and the cylinder 35 can rotate through the third shaft 39. The cylinder 35 model is CDJ2D16-30, and a telescopic rod 37 is provided at the top thereof, and the telescopic rod 37 can be extended and retracted according to the rotation of the three rotating shafts. The top of the telescopic rod 37 is connected to the second shaft 38. The second shaft 38 is fixed to the upper side of the first shaft 34, and the first shaft 34 is provided with a through hole, and the cross bar 4 is penetrated in the through hole. The lower end of the first shaft 34 is connected to the swinging member 32, and the swinging member 32 corresponds to the fixed member 31. The end of the swinging member 32 protrudes outside the shell, and a protrusion 33 is also provided on the fixed member 31, which coincides with the material groove. The swinging member 32 and the protrusion 33 are provided with a vacancy for the protrusion 33 to be placed. The lower end surface of the fixing member 31 is fixed on the housing, and the upper end surface corresponds to the swinging member 32. The fixing member 31 will not move with the rotation of the first shaft 34, the second shaft 38 and the third shaft 39. Before the operation of the equipment, the inclination angle of the cylinder 35 is controlled by adjusting the third shaft 39, so that the swinging member 32 and the fixing member 31 are matched. When the cylinder 35 is connected to the base 36, the third shaft 39 is in a fixed state. When the equipment is in operation, the third shaft 39 cannot rotate. Then, the telescopic rod 37 is retracted into the cylinder 35 through the pneumatic device, driving the first shaft 34 to rotate and tilt the swinging member 32, and a clamping space is formed between the swinging member 32 and the fixing member 31. Then, the material is placed on the upper surface of the fixing member 31, and the groove of the material is connected to the protrusion 33 of the fixing member 31 accordingly. Then, the telescopic rod 37 in the cylinder 35 of the pneumatic device is pushed out, and then the first shaft 34 rotates to drive the swinging member 32 to swing downward and cooperate with the fixing member 31 to clamp the material.
[0031] Specifically, the telescopic rod 37 is connected to the third shaft 39 via the second shaft 38. The second shaft 38 does not rotate when the telescopic rod 37 is retracted or extended. The position and tilt angle of the cylinder 35 can be set in advance in cooperation with the third shaft 39 before the device is operated.
[0032] See also Figure 1 and Figure 3 The shell includes an upper shell 1 and a lower shell 2, wherein a cavity is formed inside the upper shell 1 and the lower shell 2, and the lower shell 2 is provided with a bottom plate 21 and a side plate 23, and the two ends of the cross bar 4 are respectively fixed to the two side plates 23.
[0033] It also includes a pneumatic device, which controls the extension and rotation of all cylinders 35 to control the closing of the swing member 32 and the fixed member 31. The pneumatic device can be placed inside or outside the shell. The pneumatic device is connected to the cylinder 35 through an air pipe, or the cylinder 35 is driven by electric drive.
[0034] See also Figure 4 A slide groove 24 and a hook 22 are also provided on the bottom side of the lower shell 2. The slide groove 24 is composed of two walls protruding from the sides of the bottom surface of the lower shell 2. The hook 22 is an L-shaped slot extending from the slide groove 24. The utility model can be fixed on the conveyor belt through the slide groove 24 and conveyed into the processing equipment through the conveyor belt together with the material. It provides a clamping function when the material is processed to prevent the material from shaking during the processing and causing a decrease in processing accuracy. The hook 22 can enhance the connection firmness between the utility model and the conveyor belt. Since the force acting on the material is large during processing, the hook 22 is required for fixed protection.
[0035] The utility model provides a pneumatic clamping device, wherein three rotating shafts are respectively arranged at the front and rear ends of a cylinder 35, and the closing of a clamping portion is controlled by the coordinated use of the cylinder 35 and the three rotating shafts. The arrangement of the three rotating shafts greatly improves the flexibility of operation, and the clamping members 3 are arranged in sequence on a cross bar 4, and a protrusion 33 is arranged at the end of a fixing member 31 of each clamping member 3, and the protrusion 33 corresponds to the side groove of a material plate one by one, thereby improving the stability of clamping. During the material processing process, if a malfunction or other factors occur, the clamping portion can be opened by adjusting the telescopic cylinder of the cylinder 35, and the waste material can be taken out to prevent the waste material from further damaging the equipment. The pneumatic clamping device can be used in conjunction with a transport device, and the pneumatic clamping device is fixed on one side of a conveyor belt for repeated processing. The utility model has the characteristics of flexible operation and high clamping accuracy.
[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A pneumatic clamping device, comprising a housing, a clamping member (3) and a crossbar (4), characterized in that: The shell is hollow inside, the cross bar (4) is fixed inside the shell, and a plurality of clamping members (3) are arranged on the cross bar (4). The clamping member (3) is provided with a first shaft (34), a second shaft (38) and a third shaft (39), and the three rotating shafts are connected to each other. A cylinder (35) is provided between the second shaft (38) and the third shaft (39). The clamping member (3) is also provided with a clamping part, which is composed of a swinging member (32) and a fixing member (31). The swinging member (32) is fixed to the first shaft (34). The cylinder (35) can control the swinging member (32) to swing up and down through the three rotating shafts. The plurality of clamping parts are oriented in the same direction and used in combination. A protrusion (33) is also provided on the fixing member (31) to match the material groove.
2. The pneumatic clamping device according to claim 1, characterized in that: The clamping member (3) is provided with a base (36), and the clamping member (3) is fixed to the inner side of the shell through the base (36).
3. The pneumatic clamping device according to claim 2, characterized in that: The base (36) is connected to the cylinder (35) via a third shaft (39), and the cylinder (35) can be rotated via the third shaft (39) to adjust its angle.
4. The pneumatic clamping device according to claim 1, characterized in that: The cylinder (35) is of model CDJ2D16-30, and a telescopic rod (37) is provided at the top thereof. The telescopic rod (37) can be telescoped according to the rotation conditions of the three rotation axes.
5. The pneumatic clamping device according to claim 4, characterized in that: The top of the telescopic rod (37) is connected to the second shaft (38).
6. The pneumatic clamping device according to claim 5, characterized in that: The second shaft (38) is fixed on the upper side of the first shaft (34); the first shaft (34) is provided with a through hole, and the cross bar (4) is passed through the through hole.
7. The pneumatic clamping device according to claim 6, characterized in that: The lower end of the first shaft (34) is connected to a swinging member (32), the swinging member (32) corresponds to the fixing member (31), and the end of the swinging member (32) protrudes outside the shell.
8. The pneumatic clamping device according to claim 1, characterized in that: The lower end surface of the fixing member (31) is fixed on the housing, and the upper end surface corresponds to the swinging member (32). The fixing member (31) will not move with the rotation of the first shaft (34), the second shaft (38) and the third shaft (39).
9. The pneumatic clamping device according to claim 1, characterized in that: The shell comprises an upper shell (1) and a lower shell (2), wherein a cavity is formed inside the upper shell (1) and the lower shell (2), and the lower shell (2) is provided with a bottom plate (21) and a side plate (23), and the two ends of the cross bar (4) are respectively fixed to the two side plates (23).
10. The pneumatic clamping device according to claim 9, characterized in that: It also comprises a pneumatic device, which controls the extension and rotation of all cylinders (35) to control the closing of the swinging member (32) and the fixing member (31).