Pneumatic side direction clamping device for tool clamp

Abstract

The utility model discloses a pneumatic lateral direction clamping device for a work fixture, which comprises a pressing arm used for pressing a workpiece and a positioning mechanism, the pressing arm is connected with a connecting block through a floating arm and a driving arm in sequence, the connecting block is connected with a core shaft of an air cylinder, and the air cylinder is fixed on a support welding part. The tool clamp disclosed by the utility model is more flexible in use condition; a corner air cylinder is not used for side face clamping, the tool clamp and a machined part can be located at the far position, the use condition is wider, and demolding is convenient.

Description

Technical Field

[0001] This utility model relates to a pneumatic lateral clamping device for tooling fixtures, belonging to the field of tooling fixture technology. Background Technology

[0002] Currently, in the machinery industry, tooling fixtures have been widely promoted and applied to ensure product processing quality. Furthermore, replacing manual clamping with pneumatic fixtures can reduce worker workload and human error, significantly improving production efficiency. For lateral clamping with pneumatic fixtures, conventional SDA type cylinders or corner cylinders are generally used. However, SDA type cylinders require sufficient space; if internal clamping is required, there may not be enough space to accommodate them. Standard corner cylinders are more commonly used for downward clamping, therefore their working range is small. If the distance between the clamping device and the clamped part is too far, corner cylinders cannot be used. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a pneumatic side-positioning clamping device for tooling fixtures, so as to solve the problems that the SDA type cylinder side-positioning clamping occupies too much space and the corner cylinder has too harsh applicable conditions.

[0004] To solve the above problems, the technical solution of this utility model is: a pneumatic side-positioning clamping device for tooling fixtures, which includes a clamping arm for clamping the workpiece with the positioning mechanism, the clamping arm being connected to a connecting block in sequence through a floating arm and an active arm, the connecting block being connected to the spindle of a cylinder, and the cylinder being fixed to a support welded together.

[0005] Preferably, the active arm is a bent structure, with its two ends being movably connected to the connecting block and the floating arm respectively through cylindrical pin two and cylindrical pin three, and its bent part being movably connected to the base through cylindrical pin one; the base is welded to the support.

[0006] More preferably, the active arm is provided with a waist-shaped hole for connecting with the connecting block, and the length of the waist-shaped hole is determined according to the stroke of the cylinder.

[0007] More preferably, the floating arm has a straight structure with connection holes at both ends for connecting to the active arm and the clamping arm, respectively.

[0008] More preferably, the base includes two plates arranged vertically, the clamping arm is L-shaped, and its end is provided with connection holes for connecting with the floating arm and the base respectively. The end of the clamping arm is movably connected between the two plates of the base.

[0009] Preferably, the bottom of the support weld is provided with a base plate.

[0010] More preferably, the support is welded to the base plate via a cylindrical pin and a fixing screw.

[0011] Furthermore, a washer is provided between the fixing screw and the support during welding.

[0012] Preferably, the cylinder is an Airtac SDA type cylinder.

[0013] Compared with the prior art, the advantages of this utility model are as follows: Unlike the conventional use of Airtac SDA type cylinders, in order to avoid occupying too much space, the tooling fixture of this utility model is more flexible in use; the side clamping does not use a corner cylinder, which allows the tooling fixture to be located at a greater distance from the workpiece, making the use conditions wider and the demolding easier. Attached Figure Description

[0014] Figure 1 A schematic diagram of the pneumatic lateral clamping device for tooling fixtures provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the present invention excluding the positioning mechanism;

[0016] Figure 3 This is a top view of the drive arm;

[0017] Figure 4 This is a top view of the floating arm;

[0018] Figure 5 This is a top view of the clamping arm;

[0019] Figure 6 for Figure 2 The main view.

[0020] Figure 1-5 In the middle, 1-pressing arm, 2-floating arm, 3-active arm, 4-cylindrical pin one, 5-cylindrical pin two, 6-connecting block, 7-spindle, 8-cylinder, 9-base, 10-support welding, 11-fixing screw, 12-cylindrical pin three, 13-cylindrical pin four, 14-base plate, 15-positioning mechanism, 16-slender hole. Detailed Implementation

[0021] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0022] Example

[0023] like Figure 1-2As shown, this utility model provides a pneumatic lateral clamping device for tooling fixtures, which includes a clamping arm 1 for clamping the workpiece to the positioning mechanism 15. The clamping arm 1 is connected to the connecting block 6 in sequence via a floating arm 2 and an active arm 3. The connecting block 6 is connected to the spindle 7 of a cylinder 8. The cylinder 8 is fixed to the support weld 10. The cylinder 8 is an Airtac SDA type cylinder.

[0024] like Figure 3 As shown, the active arm 3 has a bent structure, with its two ends movably connected to the connecting block 6 and the floating arm 2 via cylindrical pin 2 5 and cylindrical pin 3 12, respectively. Its bent portion is movably connected to the base 9 via cylindrical pin 1 4. The base 9 is fixed to the support weld 10. The active arm 3 is provided with a waist-shaped hole 16 for connecting with the connecting block 6.

[0025] like Figure 4 As shown, the floating arm 2 has a straight structure, with connection holes at both ends for connecting to the active arm 3 and the clamping arm 1, respectively.

[0026] like Figure 5 As shown, the clamping arm 1 is L-shaped, and its ends are provided with connection holes for connecting to the floating arm 2 and the base 9, respectively. Figure 6 As shown, the base 9 includes two plates arranged vertically, and the end of the clamping arm 1 is movably connected between the two plates of the base 9.

[0027] like Figure 2 As shown, the support weld 10 has a base plate 14 at its bottom. The support weld 10 is connected to the base plate 14 by a cylindrical pin 13 and a fixing screw 11. A washer is provided between the fixing screw 11 and the support weld 10.

[0028] The workpiece is positioned by the positioning mechanism 15. The cylinder 8 drives the active arm 3, the floating arm 2 and the clamping arm 1 to perform circular motion, so that the clamping arm 1 clamps and loosens the workpiece. The operation is simple and the clamping effect is stable.

[0029] The cylinder 8 drives the spindle 7 and the connecting block 6 to extend and retract, which in turn causes the active arm 3, the floating arm 2 and the clamping arm 1 to perform circular motion, thereby enabling the clamping arm 1 to clamp and release the workpiece.

[0030] The active arm 3 is fixed to the base 9 by a cylindrical pin 4. When the cylinder 8 retracts back and forth, the active arm 3 will move in a circle with the cylindrical pin 4 connected to the base 9 as the center, ensuring that the movement of the active arm 3 is smooth and without jamming.

[0031] The active arm 3 is fixed to the floating arm 2 by the cylindrical pin 312. When the active arm 3 performs circular motion, the floating arm 2 will also perform circular motion with the cylindrical pin 312 as the center, ensuring that the floating arm 2 moves smoothly and without jamming.

[0032] The clamping arm 1 is positioned between the two plates of the base 9, and has two identical holes at the same horizontal position. The distance between the two holes is set according to the actual situation. The inner hole is connected to the floating arm 2 via a cylindrical pin 312; the outer hole is connected to the base 9 via a cylindrical pin 312. When the floating arm moves in a circular motion, the clamping arm 1 will move in a circular motion with the cylindrical pin 312 required for connection to the base 9 as the center.

[0033] The specific implementation process is as follows: First, the workpiece is positioned by the positioning mechanism 1, and a shim is installed at the bottom. The cylinder 8 extends forward, which drives the mandrel 7 and connecting block 6 connected to it to extend forward as well. This causes the active arm 3, floating arm 2 and clamping arm 1 to move counterclockwise around the corresponding cylindrical pin, thereby clamping the clamping arm 1 with the workpiece. Conversely, when the cylinder 8 retracts, it drives the active arm 3, floating arm 2 and clamping arm 1 to move clockwise around the corresponding cylindrical pin, thereby releasing the clamping arm 1 from the workpiece. The final position of the clamping arm 1 is determined according to the stroke of the cylinder 8, which facilitates demolding of the processed parts.

[0034] When the SDA-type cylinder extends forward, the clamping arm clamps the part to be processed; when the cylinder retracts, the clamping arm releases the part. The movement angle of the clamping arm can be between 0° and 90°, depending on the cylinder's stroke (any standard cylinder on the market can be used), facilitating product demolding. The base is welded onto the support; for simplicity, the base is presented as a separate component and does not move. The structure is robust, operation is simple, and it can be widely used in tooling and fixture design.

Claims

1. A pneumatic lateral clamping device for tooling fixtures, characterized in that, It includes a clamping arm (1) for clamping the workpiece with the positioning mechanism (15). The clamping arm (1) is connected to the connecting block (6) in sequence through the floating arm (2) and the active arm (3). The connecting block (6) is connected to the spindle (7) of the cylinder (8). The cylinder (8) is fixed on the support weld (10).

2. The pneumatic lateral clamping device for tooling fixtures as described in claim 1, characterized in that, The active arm (3) is a bent structure. Its two ends are movably connected to the connecting block (6) and the floating arm (2) through cylindrical pin 2 (5) and cylindrical pin 3 (12) respectively. Its bent part is movably connected to the base (9) through cylindrical pin 1 (4). The base (9) is fixed to the support weld (10).

3. The pneumatic lateral clamping device for tooling fixtures as described in claim 2, characterized in that, The active arm (3) is provided with a waist-shaped hole (16) for connecting to the connecting block (6).

4. The pneumatic lateral positioning clamping device for tooling fixtures as described in claim 2, characterized in that, The floating arm (2) has a straight structure with connection holes at both ends for connecting to the active arm (3) and the clamping arm (1), respectively.

5. The pneumatic lateral clamping device for tooling fixtures as described in claim 2, characterized in that, The base (9) includes two plates arranged vertically. The clamping arm (1) is L-shaped and has connection holes at its ends for connecting with the floating arm (2) and the base (9). The end of the clamping arm (1) is movably connected between the two plates of the base (9).

6. The pneumatic lateral clamping device for tooling fixtures as described in claim 1, characterized in that, The bottom of the support weld (10) is provided with a base plate (14).

7. The pneumatic lateral clamping device for tooling fixtures as described in claim 6, characterized in that, The support weld (10) is connected to the base plate (14) by cylindrical pin four (13) and fixing screw (11).

8. The pneumatic lateral clamping device for tooling fixtures as described in claim 7, characterized in that, A washer is provided between the fixing screw (11) and the support welding (10).

9. The pneumatic lateral clamping device for tooling fixtures as described in claim 1, characterized in that, The cylinder (8) is an Airtac SDA type cylinder.

Images