Fixture for pipe joint four-axis machining center

Abstract

The utility model discloses a clamp for a four-axis machining center of a pipe joint, relates to the technical field of clamps, and aims to solve the problem that a bent pipe part is fixed by a single fixed clamping plate in the prior art, and the bent pipe and the single clamping plate need to be fixed by a threaded rod and a nut in a matched manner, so that the bent pipe part is tedious to disassemble after being welded. According to the technical scheme, the device comprises a base, the top of the base is connected with a fixing plate, the two ends in the base are rotationally connected with first bidirectional lead screws, and the two ends of the rod wall of each first bidirectional lead screw are in threaded connection with clamping mechanisms correspondingly. According to the pipe joint clamping device, a pipe joint is placed on the top of the fixing plate, the first bidirectional lead screw is rotated to drive the two clamping mechanisms in threaded connection to get close to each other, and meanwhile the second bidirectional lead screw is rotated to drive the two clamping assemblies in threaded connection to get close to each other, so that the vertical rods and the transverse rods in the clamping assemblies clamp one side of the outer wall of the pipe joint; and the stop lever is used for clamping the bottom of the outer wall of the pipe joint.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp used in a four-axis machining center for a pipe joint. Background Art

[0002] Pipe fittings are parts that connect pipes in hydraulic systems or install pipes on hydraulic components. They are a general term for connectors that can be installed and removed in fluid passages. Commonly used materials are stainless steel and carbon steel with metric, American and British thread standards. They mainly include: welding type, ferrule type, crimping type and flaring type.

[0003] Due to the special shape of the elbow joint, when performing four-axis processing of the elbow joint, the elbow part is fixed by only a single fixing clamp. Since the fixation of the elbow and the single clamp requires the use of threaded rods and nuts, it is cumbersome to disassemble it after welding, which greatly affects the efficiency of the elbow joint processing. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a clamp for a four-axis machining center for pipe fittings, which overcomes the shortcomings of the prior art and effectively solves the problem of fixing the bent pipe parts by a single fixed clamp in the prior art. Since the fixation of the bent pipe and the single clamp requires the use of threaded rods and nuts, the problem of cumbersome disassembly after welding is completed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamp for a four-axis machining center for pipe fittings, comprising a base, a fixed plate connected to the top of the base, and a first bidirectional screw rod rotatably connected to both ends of the base, a clamping mechanism being screwed on both ends of the rod wall of the first bidirectional screw rod, and the clamping mechanism comprising a mounting shell, a movable block fixed to the bottom of the mounting shell, a second bidirectional screw rod rotatably connected to both ends of the mounting shell, and a clamping assembly being screwed on both ends of the rod wall of the second bidirectional screw rod, the clamping assembly comprising a T-block, a vertical rod fixed to the top of the T-block, a horizontal rod fixed to the outer wall of the vertical rod close to the fixed plate, and a stop rod fixed to the outer wall of the vertical rod facing the second bidirectional screw rod.

[0007] The pipe joint is placed on the top of the fixed plate, and the first servo motor drives the first bidirectional screw to rotate. The rotating first bidirectional screw drives the two screwed movable blocks to move along the length direction of the base, so that the two screwed clamping mechanisms are close to each other. At the same time, the second servo motor drives the second bidirectional screw to rotate. The rotating second bidirectional screw drives the two screwed clamping assemblies to be close to each other, so that the vertical rod and the horizontal rod in the clamping assembly clamp one side of the outer wall of the pipe joint, and the stop rod clamps the bottom of the outer wall of the pipe joint.

[0008] Preferably, an anti-slip sheet is bonded to the top of the fixing plate, and plug rods are fixed to both ends of the bottom of the fixing plate.

[0009] The friction force between the fixing plate and the pipe joint is increased by the anti-slip sheet.

[0010] Preferably, slots are provided on both sides of the top of the base, and the slots are adapted to the insertion rods.

[0011] The fixing plate can be easily disassembled, assembled and replaced by plugging the plug rod into the slot.

[0012] Preferably, a first servo motor is installed on the outer wall of one end of the base, and the output shaft of the first servo motor is connected and fixed to one end of the first bidirectional screw rod.

[0013] The first servo motor drives the first bidirectional screw rod to rotate, thereby driving the two threaded clamping mechanisms to move closer to or farther from each other.

[0014] Preferably, a screw hole matched with the first bidirectional screw rod is opened on one side of the movable block, and the movable block forms a sliding fit with the base.

[0015] The rotating first bidirectional screw drives the threaded movable block to move along the length direction of the base.

[0016] Preferably, a second servo motor is installed on an outer wall of one end of the mounting shell, and an output shaft of the second servo motor is connected and fixed to one end of a second bidirectional screw rod.

[0017] The second servo motor drives the second bidirectional screw to rotate, and the rotating second bidirectional screw drives the two screw-connected clamping components to move closer to or farther from each other.

[0018] The beneficial effects of the utility model are:

[0019] By placing the pipe joint on the top of the fixed plate, rotating the first bidirectional screw rod drives the two threaded clamping mechanisms closer to each other, and rotating the second bidirectional screw rod at the same time drives the two threaded clamping assemblies closer to each other, so that the vertical rod and the horizontal rod in the clamping assembly clamp one side of the outer wall of the pipe joint, and the blocking rod clamps the bottom of the outer wall of the pipe joint, which effectively solves the problem of fixing the bent pipe parts by a single fixed clamping plate in the prior art. Since the fixation of the bent pipe and the single clamping plate requires the use of threaded rods and nuts, the problem of cumbersome disassembly after welding is completed is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a fixture for a four-axis machining center for pipe joints proposed by the utility model;

[0021] Figure 2This is a schematic diagram of the structure of a clamping mechanism for a four-axis machining center for pipe joints proposed by the utility model;

[0022] Figure 3 The utility model is a schematic diagram of the overall structure of a fixture for a four-axis machining center for pipe joints.

[0023] In the figure: 1. base; 2. fixed plate; 3. first bidirectional screw rod; 4. first servo motor; 5. clamping mechanism; 6. mounting shell; 7. movable block; 8. second bidirectional screw rod; 9. second servo motor; 10. clamping assembly; 11. T-block; 12. vertical rod; 13. horizontal rod; 14. stop rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example:

[0026] Reference Figure 1-3 A clamp for a four-axis machining center of a pipe joint comprises a base 1, a fixed plate 2 is connected to the top of the base 1, a first bidirectional screw 3 is rotatably connected to both ends of the base 1, a clamping mechanism 5 is respectively screwed to both ends of the rod wall of the first bidirectional screw 3, the clamping mechanism 5 comprises a mounting shell 6, a movable block 7 fixed to the bottom of the mounting shell 6, a second bidirectional screw 8 rotatably connected to both ends of the mounting shell 6, a clamping assembly 10 respectively screwed to both ends of the rod wall of the second bidirectional screw 8, the clamping assembly 10 comprises a T-block 11, a vertical rod 12 fixed to the top of the T-block 11, a horizontal rod 13 fixed to the outer wall of the vertical rod 12 close to the fixed plate 2, and a stop rod 14 fixed to the outer wall of the vertical rod 12 facing the second bidirectional screw 8;

[0027] An anti-slip sheet is bonded to the top of the fixing plate 2, and plug rods are fixed at both ends of the bottom of the fixing plate 2. The anti-slip sheet is provided to improve the friction between the fixing plate 2 and the pipe joint. Slots are provided on both sides of the top of the base 1, and the slots are adapted to the plug rods. Through the plugging of the plug rods and the slots, it is convenient to disassemble and replace the fixing plate 2. A first servo motor 4 is installed on the outer wall of one end of the base 1. The output shaft of the first servo motor 4 is connected and fixed to one end of the first bidirectional screw rod 3. The first servo motor 4 drives the first bidirectional screw rod 3 to rotate, thereby driving the two screw-connected clamping mechanisms 5 to move closer to or away from each other.

[0028] A screw hole compatible with the first bidirectional screw rod 3 is provided on one side of the movable block 7, and the movable block 7 forms a sliding fit with the base 1. The rotating first bidirectional screw rod 3 drives the screwed movable block 7 to move along the length direction of the base 1. A second servo motor 9 is installed on the outer wall of one end of the mounting shell 6. The output shaft of the second servo motor 9 is connected and fixed to one end of the second bidirectional screw rod 8. The second servo motor 9 drives the second bidirectional screw rod 8 to rotate, and the rotating second bidirectional screw rod 8 drives the two screwed clamping components 10 to move closer or farther away from each other.

[0029] Working principle:

[0030] During operation, the pipe joint is placed on the top of the fixed plate 2, and the first bidirectional screw 3 is driven to rotate by the first servo motor 4. The rotating first bidirectional screw 3 drives the two screwed movable blocks 7 to move along the length direction of the base 1, so that the two screwed clamping mechanisms 5 are close to each other. At the same time, the second bidirectional screw 8 is driven to rotate by the second servo motor 9. The rotating second bidirectional screw 8 drives the two screwed clamping assemblies 10 to be close to each other, so that the vertical rod 12 and the horizontal rod 13 in the clamping assembly 10 clamp one side of the outer wall of the pipe joint, and the blocking rod 14 clamps the bottom of the outer wall of the pipe joint.

[0031] 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 fixture for a four-axis machining center for pipe joints, comprising a base (1), characterized in that: The top of the base (1) is connected to a fixed plate (2), and both ends of the base (1) are rotatably connected to a first bidirectional screw rod (3), and both ends of the rod wall of the first bidirectional screw rod (3) are respectively screwed with a clamping mechanism (5), and the clamping mechanism (5) comprises a mounting shell (6), a movable block (7) fixed to the bottom of the mounting shell (6), a second bidirectional screw rod (8) rotatably connected to both ends of the mounting shell (6), and a clamping assembly (10) respectively screwed to both ends of the rod wall of the second bidirectional screw rod (8), and the clamping assembly (10) comprises a T-shaped block (11), a vertical rod (12) fixed to the top of the T-shaped block (11), a horizontal rod (13) fixed to the outer wall of the vertical rod (12) close to the fixed plate (2), and a blocking rod (14) fixed to the outer wall of the vertical rod (12) facing the second bidirectional screw rod (8).

2. A fixture for a four-axis machining center for pipe joints according to claim 1, characterized in that: An anti-slip sheet is bonded to the top of the fixing plate (2), and insertion rods are fixed to both ends of the bottom of the fixing plate (2).

3. A fixture for a four-axis machining center for pipe joints according to claim 2, characterized in that: Slots are provided on both sides of the top of the base (1), and the slots are adapted to fit the insertion rods.

4. A fixture for a four-axis machining center for pipe joints according to claim 1, characterized in that: A first servo motor (4) is installed on the outer wall of one end of the base (1), and the output shaft of the first servo motor (4) is connected and fixed to one end of the first bidirectional screw rod (3).

5. The fixture for a four-axis machining center for pipe joints according to claim 1, characterized in that: A screw hole matched with the first bidirectional screw rod (3) is provided on one side of the movable block (7), and the movable block (7) and the base (1) form a sliding fit.

6. A fixture for a four-axis machining center for pipe joints according to claim 1, characterized in that: A second servo motor (9) is installed on the outer wall of one end of the installation shell (6), and the output shaft of the second servo motor (9) is connected and fixed to one end of the second bidirectional screw rod (8).

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