A fixing fixture for machining metal parts

Abstract

This utility model relates to the field of metal parts processing technology and discloses a fixed fixture for metal parts processing, including: a base plate and a metal tube. A fixed seat is fixed at one end of the top of the base plate, and a sliding seat is provided on one side of the top of the base plate. A turntable is provided on one side of both the sliding seat and the fixed seat. The metal tube is located between the turntables. A support frame is provided on one side of the base plate, and a cylinder is provided on the top of the support frame. A wheel frame is provided at one end of the piston rod of the cylinder, and a friction wheel is provided between the wheel frames. The active and continuous rotation of the metal tube in this utility model eliminates the need for manual adjustment of the tube angle, allowing every part of the circumferential weld to be aligned with the grinding tool, ensuring full circumferential coverage grinding of the weld. The uniform speed rotation driven by the motor also improves the grinding accuracy, solving the problems of traditional fixtures that require frequent manual angle adjustment, are inefficient, and have poor grinding consistency.

Description

Technical Field

[0001] This utility model relates to the field of metal parts processing technology, specifically a fixing fixture for metal parts processing. Background Technology

[0002] Metal part processing fixtures are specialized process equipment used in metal cutting, forging, welding, assembly and other processing steps to accurately position and reliably clamp metal workpieces, ensuring workpiece processing accuracy, stability and operational safety.

[0003] A Chinese patent (CN223098688U) discloses a pipe clamp for metal processing, comprising a base with bolt-fixed feet, the bolt-fixed feet being fixed to a table by bolts. Two clamping pipe clamps are spaced apart on the base for holding metal pipes. Each clamping pipe clamp includes a base platform fixed to the base, four small arms, a top clamping plate, two large arms, and two side clamping plates with hinged tailstocks. One end of each small arm is hinged to the top clamping plate, and the other end is hinged to the large arms. This utility model offers convenient clamping; the pipe is clamped by pressing down on the side clamping plates, which then lock and encircle it. Furthermore, a push-button switch triggered by an armature bar automatically activates the electromagnet block, completing the locking process, making it highly convenient and efficient.

[0004] In existing metal parts processing, especially in the grinding of weld seams after welding of metal pipes, traditional fixtures can only achieve the basic positioning and fixing functions of the pipes. However, the weld seams of metal pipes are mostly annular structures, and the angle of the pipes needs to be frequently adjusted during grinding to ensure full coverage grinding of the weld seam and processing accuracy. Traditional fixtures, lacking flexible angle adjustment capabilities, cannot meet this processing requirement. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing fixture for metal parts processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing fixture for processing metal parts, comprising: a base plate and a metal tube, a fixing seat fixed at one end of the top of the base plate, a sliding seat provided on one side of the top of the base plate, a turntable provided on one side of both the sliding seat and the fixing seat, the metal tube located between the turntables, a support frame provided on one side of the base plate, a cylinder provided on the top of the support frame, a wheel frame provided at one end of the piston rod of the cylinder, a friction wheel provided between the wheel frames, a drive motor provided on one side of the outer wall of the wheel frame, a V-shaped support seat provided on the top of the base plate on the side of the friction wheel, and a support roller provided on the inner wall of the V-shaped support seat.

[0007] Furthermore, there are multiple support rollers, which are evenly arranged circumferentially on the inner wall of the V-shaped support seat, and the support rollers are flush with each other.

[0008] Furthermore, the drive motor is fixedly connected to the wheel frame, and one end of the drive motor output shaft is fixed to one end of the friction wheel.

[0009] Furthermore, a T-slot is provided on one side of the top of the base plate, and the sliding seat is connected to the T-slot by a T-bolt.

[0010] Furthermore, the turntable is frustum-shaped, and the two turntables are arranged opposite each other.

[0011] Furthermore, a slider is fixed to one end of the cylinder piston rod, and guide rods are provided at both ends of the slider. One end of the guide rod is fixed to one side of the wheel frame.

[0012] Furthermore, the slider has a guide hole inside that cooperates with the guide rod, and a limit block is fixed at one end of the guide rod.

[0013] Furthermore, a spring is provided between the wheel frame and the slider, and the spring is sleeved on the outside of the guide rod.

[0014] Furthermore, a groove is provided on the top surface of the support frame below the slider.

[0015] Furthermore, one side of the support roller is in contact with the outer wall of the metal tube, and the outer wall of the friction wheel is provided with anti-slip texture.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a motor to drive a friction wheel to rotate. When the friction wheel contacts the outer wall of the metal tube, it transmits rotational power to the metal tube through friction, causing the tube to rotate around its own axis. This enables the metal tube to rotate actively and continuously, eliminating the need for manual adjustment of the tube's angle. This ensures that every part of the circumferential weld seam is aligned with the grinding tool, guaranteeing full circumferential coverage grinding of the weld seam. The uniform rotation driven by the motor also improves grinding accuracy, solving the problems of traditional fixtures requiring frequent manual angle adjustments, low efficiency, and poor grinding consistency. A spring is fitted onto the guide rod, with its two ends abutting against the wheel frame and the slider, respectively. The spring's elastic deformation generates a buffering force. When there is a slight deviation in the diameter of the metal tube or radial runout during rotation, the spring can automatically extend and retract to compensate. This ensures that the friction wheel is always in close contact with the outer wall of the metal tube, guaranteeing stable transmission of friction force and preventing slippage even if the tube has dimensional errors or slight runout. The buffering effect also reduces hard contact damage between the friction wheel and the tube.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a metal parts processing fixture according to the present invention; Figure 2 This is a schematic diagram of the structure of a metal parts processing fixture according to the present invention; Figure 3 This is a schematic diagram of the structure of a metal parts processing fixture according to the present invention; Figure 4 This is a schematic diagram of the structure of a metal parts processing fixture according to the present invention; Figure 5 This is a schematic diagram of the structure of a metal parts processing fixture according to the present invention; Figure 6 This is a schematic diagram of the structure of a metal parts processing fixture according to the present invention; Figure 7 This is a schematic diagram of the structure of a metal part processing fixture according to the present invention.

[0019] In the diagram: 1. Base plate; 2. T-slot; 3. Sliding seat; 4. Turntable; 5. Metal tube; 6. V-shaped support seat; 7. Support roller; 8. Support frame; 9. Cylinder; 10. Slider; 11. Guide rod; 12. Spring; 13. Wheel frame; 14. Friction wheel; 15. Drive motor; 16. Fixed seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1-7This utility model provides a technical solution: a fixing fixture for processing metal parts, comprising: a base plate 1 and a metal tube 5, a fixing seat 16 fixed at one end of the top of the base plate 1, a sliding seat 3 provided on one side of the top of the base plate 1, a turntable 4 provided on one side of both the sliding seat 3 and the fixing seat 16, the metal tube 5 located between the turntables 4, a support frame 8 provided on one side of the base plate 1, a cylinder 9 provided on the top of the support frame 8, a wheel frame 13 provided at one end of the piston rod of the cylinder 9, a friction wheel 14 provided between the wheel frames 13, a drive motor 15 provided on one side of the outer wall of the wheel frame 13, a V-shaped support seat 6 provided on the top of the base plate 1 on the side of the friction wheel 14, and a support roller 7 provided on the inner wall of the V-shaped support seat 6. The fixed seat 16 and the sliding seat 3 cooperate to position the two ends of the metal tube 5, and the turntable 4 is used for centering and rotating the tube. The cylinder 9 on the support frame 8 drives the wheel frame 13 to move the friction wheel 14 closer to or away from the metal tube 5, and the drive motor 15 provides rotational power for the friction wheel 14. The V-shaped support seat 6 and the support roller 7 provide auxiliary support for the middle of the metal tube 5. Through modular structural design, the limitation of traditional fixtures that can only fix the metal tube 5 is broken, providing a hardware basis for angle adjustment during circumferential weld grinding and solving the problem that traditional fixtures cannot adapt to circumferential grinding.

[0022] Multiple support rollers 7 are arranged circumferentially and evenly on the inner wall of the V-shaped support seat 6, and are flush with each other. These multiple support rollers 7, evenly distributed and flush with the inner wall of the V-shaped support seat 6, form multiple points of contact with the outer wall of the metal tube 5. The support rollers 7 can rotate synchronously with the rotation of the metal tube 5, converting sliding friction into rolling friction. This multi-point circumferential support tightly conforms to the arc-shaped outer wall of the metal tube 5, ensuring the stability of the tube's radial positioning and avoiding grinding deviations caused by tube wobbling during grinding. The rolling friction significantly reduces the resistance during tube rotation, ensuring smooth angle adjustment and solving the problems of traditional clamps lacking auxiliary support, easy tube displacement, and difficult rotation.

[0023] The drive motor 15 is fixedly connected to the wheel frame 13, and one end of the output shaft of the drive motor 15 is fixed to one end of the friction wheel 14. The drive motor 15 is fixed on the wheel frame 13, and its output shaft directly drives the friction wheel 14 to rotate. When the friction wheel 14 contacts the outer wall of the metal tube 5, it transmits rotational power to the metal tube 5 through friction, causing the tube to rotate around its own axis. This achieves active and continuous rotation of the metal tube 5, eliminating the need for manual adjustment of the tube angle. This ensures that every part of the annular weld seam is aligned with the grinding tool, guaranteeing full circumferential coverage grinding of the weld seam. The uniform rotation driven by the motor also improves grinding accuracy, solving the problems of frequent manual angle adjustments, low efficiency, and poor grinding consistency associated with traditional fixtures.

[0024] A T-slot 2 is provided on one side of the top of the base plate 1, and the sliding seat 3 is connected to the T-slot 2 by a T-bolt. The T-bolt can slide freely along the T-slot 2 on the base plate 1, driving the sliding seat 3 to move horizontally on the base plate 1, adjusting the distance between the sliding seat 3 and the fixed seat 16. It is suitable for metal pipes 5 of different lengths, expanding the applicability of the clamp; at the same time, the movement of the sliding seat 3 can accurately position both ends of the pipe fitting, ensuring that the axis of the pipe fitting coincides with the rotation center, solving the problem that traditional clamps can only fix pipe fittings of a single length and have poor versatility, and providing coaxiality guarantee for the stable rotation of the pipe fitting.

[0025] The turntable 4 is frustum-shaped, and two turntables 4 are arranged opposite each other. The two frustum-shaped turntables 4 are respectively mounted on the fixed base 16 and the sliding base 3, and are arranged opposite each other. Their conical surfaces can fit against the inner wall of the end of the metal pipe 5 to achieve centering and positioning of the pipe fitting. The turntable 4 can rotate around its own axis, providing guidance for the rotation of the metal pipe 5. The frustum-shaped structure can accommodate the ends of metal pipes 5 with different diameters, and the opposite arrangement ensures the coaxiality of the two ends of the pipe fitting, avoiding eccentric swing during rotation. The rotational guidance of the turntable 4 further improves the stability of the pipe fitting angle adjustment.

[0026] A slider 10 is fixed to one end of the piston rod of cylinder 9. Guide rods 11 are provided at both ends of slider 10. One end of the guide rod 11 is fixed to one side of wheel frame 13. The extension and retraction of the piston rod of cylinder 9 drives slider 10 to move linearly. One end of guide rod 11 is fixed to wheel frame 13, and the other end passes through slider 10, restricting the movement direction of wheel frame 13 to only a straight line, moving closer to or away from metal tube 5. This precisely controls the contact or separation action of friction wheel 14 with metal tube 5, ensuring uniform contact pressure between friction wheel 14 and tube; the linear guidance prevents wheel frame 13 from shifting, causing misalignment between friction wheel 14 and tube.

[0027] The slider 10 has a guide through hole that mates with the guide rod 11, and a limit block is fixed at one end of the guide rod 11. The guide through hole in the slider 10 and the guide rod 11 are in clearance fit, which restricts the guide rod 11 to move only along the axis of the through hole; the limit block at the end of the guide rod 11 can prevent the guide rod 11 from coming out of the slider 10.

[0028] A spring 12 is provided between the wheel frame 13 and the slider 10, and the spring 12 is sleeved on the outside of the guide rod 11. The spring 12 is sleeved on the guide rod 11, and its two ends abut against the wheel frame 13 and the slider 10 respectively. The elastic deformation of the spring generates a buffering force. When there is a slight deviation in the diameter of the metal tube 5 or radial runout during rotation, the spring 12 can automatically extend and retract to compensate. This ensures that the friction wheel 14 is always in close contact with the outer wall of the metal tube 5. Even if the tube has dimensional errors or slight runout, it can ensure stable transmission of friction force and avoid slippage. The buffering effect can also reduce hard contact damage between the friction wheel 14 and the tube.

[0029] A groove is formed on the top surface of the support frame 8 below the slider 10. The slider 10 is embedded in the groove on the top surface of the support frame 8, and the groove restricts the slider 10 to move linearly only along the length of the groove.

[0030] One side of the support roller 7 contacts the outer wall of the metal tube 5, and the outer wall of the friction wheel 14 is provided with anti-slip texture. The contact between the support roller 7 and the outer wall of the metal tube 5 forms a support point, and the anti-slip texture on the outer wall of the friction wheel 14 increases the friction with the outer wall of the tube. The anti-slip texture improves the transmission efficiency between the friction wheel 14 and the tube and prevents slippage; the two work together to ensure the uniformity and continuity of the rotation of the metal tube 5, and to ensure precise angle adjustment during the weld grinding process.

[0031] This invention uses a motor to drive the friction wheel 14 to rotate. When the friction wheel 14 contacts the outer wall of the metal tube 5, it transmits rotational power to the metal tube 5 through friction, causing the tube to rotate around its own axis. This enables the metal tube 5 to rotate actively and continuously without the need for manual adjustment of the tube angle, ensuring that every part of the circumferential weld is aligned with the grinding tool and guaranteeing full circumferential coverage grinding of the weld. The uniform rotation driven by the motor also improves grinding accuracy, solving the problems of traditional fixtures that require frequent manual angle adjustments, are inefficient, and have poor grinding consistency. A spring 12 is fitted onto the guide rod 11, with its two ends abutting against the wheel frame 13 and the slider 10 respectively. The elastic deformation of the spring generates a buffering force. When there is a slight deviation in the diameter of the metal tube 5 or radial runout during rotation, the spring 12 can automatically extend and retract to compensate. This ensures that the friction wheel 14 is always in close contact with the outer wall of the metal tube 5, guaranteeing stable transmission of friction force and preventing slippage even if the tube has dimensional errors or slight runout. The buffering effect also reduces hard contact damage between the friction wheel 14 and the tube.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A fixing fixture for machining metal parts, comprising: The base plate (1) and the metal tube (5) are characterized in that: a fixed seat (16) is fixed at one end of the top of the base plate (1), a sliding seat (3) is provided on one side of the top of the base plate (1), a turntable (4) is provided on one side of both the sliding seat (3) and the fixed seat (16), the metal tube (5) is located between the turntables (4), a support frame (8) is provided on one side of the base plate (1), a cylinder (9) is provided on the top of the support frame (8), a wheel frame (13) is provided at one end of the piston rod of the cylinder (9), a friction wheel (14) is provided between the wheel frames (13), a drive motor (15) is provided on one side of the outer wall of the wheel frame (13), a V-shaped support seat (6) is provided on the top of the base plate (1) on one side of the friction wheel (14), and a support roller (7) is provided on the inner wall of the V-shaped support seat (6).

2. The fixing fixture for metal part processing according to claim 1, characterized in that: There are multiple support rollers (7), and the multiple support rollers (7) are evenly arranged circumferentially on the inner wall of the V-shaped support seat (6), and the support rollers (7) are flush with each other.

3. A fixing fixture for machining metal parts according to claim 1, characterized in that: The drive motor (15) is fixedly connected to the wheel frame (13), and one end of the output shaft of the drive motor (15) is fixed to one end of the friction wheel (14).

4. A fixing fixture for machining metal parts according to claim 1, characterized in that: The bottom plate (1) has a T-slot (2) on one side of its top, and the sliding seat (3) is connected to the T-slot (2) by a T-bolt.

5. A fixing fixture for machining metal parts according to claim 1, characterized in that: The turntable (4) is frustum shaped, and the two turntables (4) are arranged opposite each other.

6. A fixing fixture for machining metal parts according to claim 1, characterized in that: The piston rod of the cylinder (9) is fixed with a slider (10) at one end. The slider (10) is provided with guide rods (11) at both ends. One end of the guide rod (11) is fixed to one side of the wheel frame (13).

7. A fixing fixture for machining metal parts according to claim 6, characterized in that: The slider (10) has a guide hole inside that cooperates with the guide rod (11), and a limit block is fixed at one end of the guide rod (11).

8. A fixing fixture for machining metal parts according to claim 7, characterized in that: A spring (12) is provided between the wheel frame (13) and the slider (10), and the spring (12) is sleeved on the outside of the guide rod (11).

9. A fixing fixture for machining metal parts according to claim 8, characterized in that: The top surface of the support frame (8) is provided with a groove located below the slider (10).

10. A fixing fixture for machining metal parts according to claim 1, characterized in that: One side of the support roller (7) is in contact with the outer wall of the metal tube (5), and the outer wall of the friction wheel (14) is provided with anti-slip texture.

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