Flange machining clamp

Abstract

The utility model provides a flange processing clamp, which comprises an outer protective plate, an air cylinder, at least two straight rails and two movable arms, the air cylinder, the straight rails and the movable arms are arranged on one side of the outer protective plate, a cross arm is arranged on the straight rails in a sliding mode, the cross arm is fixedly connected with a telescopic rod of the air cylinder, and the two movable arms are symmetrically arranged at the two ends of the cross arm. The movable arm comprises a longitudinal arm, a hinge arm, a clamping arm, a semi-annular piece, a clamping plate sleeve and a clamping jaw assembly, one end of the longitudinal arm is hinged to the transverse arm, and the other end of the longitudinal arm is hinged to one end of the hinge arm and one end of the semi-annular piece. The adjustable clamping plate sleeve is arranged, so that the clamp can adapt to flanges of different specifications, and in conclusion, the clamp is easy to operate, convenient to adjust and wide in application range.

Description

Technical Field

[0001] This utility model relates to a clamp, and more particularly to a flange processing clamp. Background Technology

[0002] During flange machining, fixtures are typically used to secure the workpiece in place and ensure its stability. Fixtures keep the flange stable during machining and ensure machining accuracy and precision. The design and selection of fixtures should be determined based on specific machining requirements and workpiece specifications to achieve optimal machining results.

[0003] Existing flange clamps have the following drawbacks:

[0004] 1. Complex operation: Some flange clamps may require multiple steps to clamp or loosen, which increases the difficulty of operation and time cost.

[0005] 2. Inconvenient adjustment: Some flange clamps may require frequent adjustments to accommodate different flange diameters, which may waste time or lead to errors.

[0006] Therefore, it is necessary to design a flange processing fixture that is simple to operate and easy to adjust, addressing the shortcomings of existing technologies. Utility Model Content

[0007] To address the problems existing in the prior art, this utility model provides a flange processing fixture that is simple to operate and easy to adjust.

[0008] The technical solution is as follows: A flange processing fixture includes an outer protective plate and a cylinder, a straight rail, and a movable arm disposed on one side of the outer protective plate. At least two straight rails are provided, and a horizontal arm is slidably mounted on each straight rail. The horizontal arm is fixedly connected to the cylinder extension rod. Two movable arms are symmetrically disposed at both ends of the horizontal arm. Each movable arm includes a longitudinal arm, a hinge arm, a clamping arm, a semi-annular plate, a clamping plate sleeve, and a jaw assembly. One end of the longitudinal arm is hinged to the horizontal arm, and the other end of the longitudinal arm is hinged to one end of the hinge arm and one end of the semi-annular plate, respectively. One end of the clamping arm is hinged to the outer protective plate via a first fixed axis, and the other end is adjustablely sleeved with the clamping plate sleeve. The other end of the hinge arm is hinged to the clamping arm, and the other end of the semi-annular plate is hinged to the outer protective plate via a second fixed axis. The jaw assembly is disposed on the clamping plate sleeve.

[0009] Furthermore, it is particularly preferred that the gripper assembly includes a rear plate, a short sliding pin, a gripper, and a spring. The rear plate is fixedly mounted on the clamping plate sleeve. A short sliding pin is provided between the gripper and the rear plate. The short sliding pin is fixedly connected to the gripper and slidably connected to the rear plate. The spring is sleeved on the short sliding pin, and both ends of the spring abut against the back of the rear plate and the gripper, respectively.

[0010] Furthermore, it is particularly preferred that the clamp sleeve is sleeved with the longitudinal arm, the longitudinal arm is provided with an adjustment groove, the clamp sleeve is provided with a locking bolt adapted to the adjustment groove, and a scale line is provided on one side of the longitudinal arm.

[0011] Furthermore, it is particularly preferred that the inner side of the gripper is provided with anti-slip texture.

[0012] Furthermore, it is particularly preferred that the cross-section of the gripper is grooved.

[0013] Furthermore, it is particularly preferred that the longitudinal section of the gripper is grooved.

[0014] Furthermore, it is particularly preferred that the inner side of the gripper is provided with a rubber liner.

[0015] Beneficial effects: 1. This utility model uses a cylinder as the drive for this clamp, which has the advantages of high speed, high precision, good stability, high reliability and good controllability. The cylinder drives the horizontal arm to slide along the straight rail, thereby driving the movable arm to perform clamping and releasing actions, and then driving the jaw assembly to clamp the flange. By setting an adjustable clamping plate sleeve, this clamp can be adapted to flanges of different specifications. In summary, this clamp is not only simple to operate, but also easy to adjust and has a wide range of applications.

[0016] 2. The gripper of this utility model is movably connected to the rear plate, and a spring is provided in the middle to provide a certain buffer when clamping, so as to avoid damage to the flange.

[0017] 3. The longitudinal arm of this utility model is provided with an adjustment groove, and the clamp sleeve is connected to the longitudinal arm by locking bolts, which can be used for flanges of different diameters.

[0018] 4. The inner side of the gripper of this utility model is provided with anti-slip texture, which can play an anti-slip role. In addition, the inner side of the gripper is provided with a rubber lining, which can avoid damaging the flange surface during use and affecting the use of the flange.

[0019] 5. The cross-section and longitudinal section of the clamps of this utility model are both groove-shaped, which can effectively limit the movement in both horizontal and vertical directions when clamping the flange, thereby enhancing the clamping effect of the flange. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the clamping arm, clamping plate sleeve, rear plate, short sliding pin, clamping claw, spring, anti-slip textured locking bolt, and scale lines of this utility model.

[0023] Figure 4 This is a schematic diagram of the gripper and rubber liner of this utility model.

[0024] The markings in the diagram are as follows: 1-Outer protective plate, 2-Straight rail, 3-Horizontal arm, 31-Longitudinal arm, 32-Hinge arm, 33-Clamping arm, 331-First fixed axis, 332-Adjusting groove, 34-Semi-annular piece, 341-Second fixed axis, 35-Clamping plate sleeve, 36-Clamping claw assembly, 361-Rear plate, 362-Short sliding pin, 363-Clamping claw, 364-Spring, 4-Cylinder, 5-Anti-slip texture, 6-Locking bolt, 7-Scale line, 8-Rubber liner. Detailed Implementation

[0025] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0027] A flange machining fixture, such as Figure 1-4 As shown, the device includes an outer protective plate 1 and a cylinder 4, a straight rail 2, and a movable arm disposed on one side of the outer protective plate 1. There are two outer protective plates 1, which are parallel to each other and serve as support and protection. The cylinder 4, straight rail 2, and movable arm are all located between the two outer protective plates 1. There are at least two straight rails 2, each with its ends fixed to the protective plate 1 via an ear plate. A horizontal arm 3 is slidably mounted on both straight rails 2. The horizontal arm 3 is fixedly connected to the telescopic rod of the cylinder 4. The telescopic rod of the cylinder 4 is parallel to the two straight rails 2. The cylinder 4 drives the horizontal arm 3 to reciprocate linearly along the straight rails 2. There are two movable arms, symmetrically disposed at both ends of the horizontal arm 3. (See reference for details.) Figure 2 The movable arm includes a longitudinal arm 31, a hinge arm 32, a clamping arm 33, a semi-annular plate 34, a clamping sleeve 35, an adjusting groove 332, and a gripper assembly 36. One end of the longitudinal arm 31 is hinged to the transverse arm 3 by a pin. The end of the longitudinal arm 31 away from the transverse arm 3 is hinged to one end of the hinge arm 32 and one end of the semi-annular plate 34 by the same pin. One end of the clamping arm 33 is hinged to the outer protective plate 1 through a first fixed shaft 331. The other end of the clamping arm 33 is adjustablely sleeved with the clamping sleeve 35. (See details...) Figure 3The longitudinal arm 31 is provided with an adjustment groove 332, and the clamping sleeve 35 is provided with a locking bolt 6 that matches the adjustment groove 332. The locking bolt 6 passes through the adjustment groove 332 on the clamping sleeve 35 and the clamping arm 33. In this embodiment, there are two locking bolts 6. In order for the two clamping sleeves 35 to be adjusted synchronously and accurately, the same scale line 7 is provided on the upper side of the two longitudinal arms 31 respectively. The other end of the hinge arm 32 is hinged to the end of the clamping arm 33 near the first fixed axis 331. The other end of the semi-annular plate 34 is hinged to the outer protective plate 1 through the second fixed axis 341. The gripper assembly 36 is provided on the clamping sleeve 35, such as Figure 3-4 As shown, the gripper assembly 36 includes a rear plate 361, short sliding pins 362, grippers 363, and springs 364. The rear plate 361 is fixedly mounted on the clamping sleeve 35 by rivets. Short sliding pins 362 are provided between the grippers 363 and the rear plate 361. Four short sliding pins 362 are distributed at the four corners of the rear plate 361. The short sliding pins 362 are fixedly connected to the grippers 363 and slidably connected to the rear plate 361. Springs 364 are sleeved on the short sliding pins 362, with both ends abutting against the backs of the rear plate 361 and the grippers 363, respectively. The springs 364 between the rear plate 361 and the grippers 363 provide a certain buffer during clamping, preventing damage to the flange. Preferably, the cross-section and longitudinal section of the grippers 363 are grooved, allowing for effective limiting in both horizontal and vertical directions when clamping the flange, enhancing the clamping effect. Furthermore, anti-slip texture 5 is provided on the inner side of the jaws 363 to prevent slipping. In addition, to avoid damaging the flange surface, a rubber liner 8 is provided on the inner side of the jaws 363 to reduce damage to the flange surface and avoid affecting the normal use of the flange in the future.

[0028] Working principle: When in use, start cylinder 4, the piston rod of cylinder 4 extends and drives the horizontal arm 3 to slide linearly along the straight rail 2. At the same time, the horizontal arm 3 drives the vertical arm 31 to move. The horizontal arm 3 drives the clamping arm 33 through the hinge arm 32, so that the clamping arm 33 rotates a certain angle along the first fixed axis 331. Similarly, the semi-annular plate 34 rotates a certain angle along the second fixed axis 341. The semi-annular plate 34 plays a supporting and connecting role. This step makes the two clamping arms 33 move towards each other, so that the two jaws 363 clamp the flange placed in the middle. When the two clamping arms 33 are close together, they can clamp flanges of different sizes. This can be adjusted according to the processing requirements of the cylinder stroke.

[0029] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A flange processing fixture, characterized in that, The device includes an outer protective plate (1), a cylinder (4), a straight rail (2), and a movable arm disposed on one side of the outer protective plate (1). At least two straight rails (2) are provided, and a horizontal arm (3) is slidably disposed on the straight rail (2). The horizontal arm (3) is fixedly connected to the telescopic rod of the cylinder (4). Two movable arms are symmetrically disposed at both ends of the horizontal arm (3). Each movable arm includes a longitudinal arm (31), a hinge arm (32), a clamping arm (33), a semi-circular plate (34), a clamping sleeve (35), and a gripper assembly (36). The longitudinal arm (31)... One end of the arm is hinged to the horizontal arm (3), and the other end of the vertical arm (31) is hinged to one end of the hinge arm (32) and one end of the semi-circular piece (34). One end of the clamping arm (33) is hinged to the outer protective plate (1) through the first fixed axis (331), and the other end is adjustablely sleeved with the clamping plate sleeve (35). The other end of the hinge arm (32) is hinged to the clamping arm (33), and the other end of the semi-circular piece (34) is hinged to the outer protective plate (1) through the second fixed axis (341). The gripper assembly (36) is mounted on the clamping plate sleeve (35).

2. The flange processing fixture according to claim 1, characterized in that, The gripper assembly (36) includes a rear plate (361), a short sliding pin (362), a gripper (363), and a spring (364). The rear plate (361) is fixedly mounted on the clamping sleeve (35). The short sliding pin (362) is provided between the gripper (363) and the rear plate (361). The short sliding pin (362) is fixedly connected to the gripper (363) and slidably connected to the rear plate (361). The spring (364) is sleeved on the short sliding pin (362), and the two ends of the spring (364) abut against the back of the rear plate (361) and the gripper (363), respectively.

3. A flange processing fixture according to claim 1, characterized in that, The clamp sleeve (35) is sleeved with the longitudinal arm (31), the longitudinal arm (31) is provided with an adjustment groove (332), and the clamp sleeve (35) is provided with a locking bolt (6) that matches the adjustment groove (332); The longitudinal arm (31) has a scale line (7) on one side.

4. A flange processing fixture according to claim 2, characterized in that, The inner side of the gripper (363) is provided with anti-slip texture (5).

5. A flange processing fixture according to claim 2, characterized in that, The cross-section of the gripper (363) is grooved.

6. A flange processing fixture according to claim 5, characterized in that, The longitudinal section of the gripper (363) is groove-shaped.

7. A flange processing fixture according to claim 2, characterized in that, The inner side of the gripper (363) is provided with a rubber liner (8).

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