Pipe fitting machining device and equipment

Abstract

The utility model provides a pipe fitting machining device and equipment, the pipe fitting machining device comprises a mold base, a shaping mold and a wire drawing mold, at least part of the shaping mold and at least part of the wire drawing mold are fixedly arranged in the mold base, the wire drawing mold comprises a first hole part, and a wire drawing part is arranged on the inner wall of at least part of the first hole part; the shaping die penetrates through the first hole part and comprises a shaping part, and at least part of the shaping part protrudes out of the first hole part in the axial direction of the first hole part. According to the device, the pipe end part is firstly shaped and then is drawn, so that the phenomenon that the drawing depth of the pipe end part is different or no drawing is generated can be reduced, the pipe fitting processing efficiency can be relatively improved, and the drawing quality of the pipe end part can be improved.

Description

Technical Field

[0001] The present invention relates to the field of pipe processing, and in particular to a pipe processing device and equipment. Background Art

[0002] After pipe fittings are processed, the ends of the pipes may be deformed due to bending or external forces. When the ends of the pipes are subjected to wire drawing surface treatment, the wire drawing depth may be uneven or no wire drawing may occur. In related technologies, the pipe ends are first shaped by shaping equipment, and then the ends of the pipes are subjected to wire drawing surface treatment by wire drawing equipment. The efficiency of such processing is relatively low. Utility Model Content

[0003] Based on this, it is necessary to provide a pipe processing device and equipment to address the above problems. The specific solutions are as follows:

[0004] A pipe processing device includes a die base, a shaping die, and a wire drawing die. At least part of the shaping die and at least part of the wire drawing die are fixedly arranged in the die base. The wire drawing die includes a first hole portion, and at least part of the inner wall of the first hole portion is provided with a wire drawing portion. The shaping die is passed through the first hole portion. The shaping die includes a shaping portion, and at least part of the shaping portion is provided along the axial direction of the first hole portion to protrude from the first hole portion.

[0005] The pipe processing device includes a shaping die and a wire drawing die. The pipe end portion of the pipe to be processed is shaped and wire drawn by the pipe processing device, which can reduce the phenomenon of uneven wire drawing depth or no wire drawing at the pipe end portion; in addition, the pipe processing device can complete shaping and wire drawing at one time, which can relatively improve the efficiency of processing pipes and improve the quality of wire drawing at the pipe end portion.

[0006] This application also provides a pipe processing equipment, the specific scheme is as follows:

[0007] A pipe processing device includes a pipe processing device, a drive assembly, and a clamp assembly. The clamp assembly is used to clamp the pipe to be processed, and the drive assembly drives the pipe processing device to move closer to or away from the pipe to be processed along the axial direction of the pipe processing device.

[0008] The pipe processing device of the pipe processing equipment can complete shaping and wire drawing at one time. Compared with the related art in which shaping and wire drawing are processed separately, the pipe processing equipment can relatively improve the efficiency of pipe processing and improve the quality of wire drawing at the pipe end. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a pipe processing equipment;

[0010] Figure 2Schematic diagram of pipe fitting processing steps;

[0011] Figure 3 It is a schematic diagram of the assembly of the pipe processing device and the pipe to be processed;

[0012] Figure 4 This is the structural explosion diagram of the pipe processing device;

[0013] Figure 5 It is a cross-sectional view of a pipe processing device;

[0014] Figure 6 Schematic diagram of the structure of the mold base;

[0015] Figure 7 Schematic diagram of the structure of the mold cap;

[0016] Figure 8 It is the projection top view of the mold cap;

[0017] Figure 9 It is a structural diagram of the integral mold;

[0018] Figure 10 It is a three-dimensional schematic diagram of a wire drawing die;

[0019] Figure 11 is a cross-sectional view of the wire drawing die;

[0020] Figure 12 Schematic diagram of the structure of the guide die;

[0021] 100. Pipe processing device; 1. Die base; 10. First mounting hole; 11. First end; 2. Shaping die; 3. Drawing die; 30. First hole; 31. Drawing portion; 310. Drawing protrusion; 32. Step portion; 320. First platform; 321. Second platform; 33. First guide hole; 20. Shaping mandrel; 21. Fixing portion; 202. Connecting section; 203. Shaping section; 2030. Connecting section; 2031. Shaping section; 2032. Guide portion; 4. Guide die; 4 0, second hole portion; 41, second guide hole portion; 43, third guide hole portion; 5, mold cap; 50, first mating portion; 51, second mating portion; 52, third mating portion; 104, drive assembly; 102, mold mounting seat; 6, pipe to be processed; 103, fixture assembly; 101, boss portion; 210, first end surface; 211, second end surface; 44, third end surface; 45, fourth end surface; 34, fifth end surface; 35, sixth end surface; 53, first planar portion; 54, second planar portion; DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] After pipe fitting processing, the pipe ends may be deformed due to bending or external forces. During the wire drawing process, the wire drawing depth may be uneven or even absent. In the related art, the pipe ends are first shaped by shaping equipment and then subjected to wire drawing equipment. This method of pipe fitting processing is relatively inefficient.

[0024] This application provides a pipe processing equipment, see Figure 1-Figure 3 The apparatus comprises a pipe processing device 100 and a drive assembly 104. The drive assembly 104 comprises a mold mounting base 102. The pipe processing device 100 is fixedly mounted on the mold mounting base 102. The drive assembly 104 drives the pipe processing device 100 to reciprocate along the axis of the pipe processing device 100 via the mold mounting base 102. The apparatus further comprises a clamp assembly 103. The clamp assembly 103 clamps the pipe 6 to be processed. The axis of the end of the pipe 6 to be processed coincides with the axis of the pipe processing device 100. The clamp assembly 103 immobilizes the pipe 6 to be processed. The direction in which the pipe processing device 100 moves toward the pipe 6 to be processed is defined as X. The drive assembly 104 drives the mold mounting base 102 to move the pipe processing device 100 toward the pipe 6 to be processed along this direction X. The pipe end of the pipe 6 to be processed is then subjected to shaping processing, surface wire drawing processing, and further, diameter reduction processing. The aforementioned shaping process primarily shapes the tube end to a regular, smooth shape, facilitating the subsequent surface drawing process. This shaping process can also be a flaring process, which not only creates a regular, smooth shape for the tube end but also increases its diameter. Compared to pre-processing, the diameter of the tube end 6 after shaping can remain unchanged or increase, as long as the tube end maintains a regular, smooth shape and facilitates surface drawing. After the shaping and drawing processes are completed, the tube processing device 100, under the action of the drive assembly 104, moves away from the tube 6 to be processed in a direction opposite to direction X, at which point the processing of the tube 6 is complete. Alternatively, the drive assembly drives the tube processing device toward or away from the tube 6 to be processed along the axis of the tube processing device. This tube processing device incorporates a shaping and drawing integrated structure. Compared to related art methods in which shaping and drawing are performed separately, this tube processing device can significantly improve tube processing efficiency and the quality of the drawing of the tube end.

[0025] For details, see Figure 4-Figure 5The pipe processing device 100 includes a die base 1, a shaping die 2, and a wire drawing die 3. At least part of the shaping die 2 and at least part of the wire drawing die 3 are fixedly arranged in the die base 1. The wire drawing die 3 includes a first hole portion 30. The shaping die 2 is passed through the first hole portion 30. At least the inner wall of the first hole portion 30 is provided with a wire drawing portion 31. The shaping die 2 is passed through the first hole portion 30. The shaping die 2 includes a shaping portion 2031. At least part of the shaping portion 2031 is provided along the axial direction of the first hole portion 30 to protrude from the first hole portion 30. With this arrangement, when the end portion of the pipe fitting 6 to be processed is subjected to the surface treatment by the wire drawing process, the pipe fitting processing device 100 moves toward the pipe fitting 6 to be processed along the direction X, and the shaping portion 2031 extends into the pipe end portion. The pipe end portion of the pipe fitting 6 to be processed is first shaped by the shaping portion 2031. After the pipe end portion is rounded and has a regular shape, the pipe fitting processing device 100 continues to move along X, and the wire drawing portion 31 of the wire drawing die 3 performs the surface treatment by the wire drawing process on the outer wall of the pipe end portion. This can reduce the phenomenon of uneven wire drawing depth or no wire drawing on the surface of the pipe end portion; in addition, the pipe fitting processing device is an integrated shaping and wire drawing structure, which can relatively improve the efficiency of processing pipe fittings.

[0026] For further information, see Figure 9 The shaping die 2 includes a shaping mandrel 20, and the shaping mandrel 20 includes the shaping portion 2031. The shaping portion 2031 extends circumferentially along the outer peripheral wall of the shaping mandrel 20. In this manner, when the shaping mandrel 20 pipe processing device 100 moves along the direction X toward the pipe 6 to be processed, the shaping portion 2031 extending circumferentially along the outer peripheral wall of the shaping mandrel 20 can uniformly shape the pipe end portion, and the operation is convenient.

[0027] For further information, see Figure 5 , along the axial direction of the first hole portion 30, the wire drawing portion 31 and the shaping portion 2031 are staggered, the shaping portion 2031 is closer to the pipe 6 to be processed relative to the wire drawing portion 31, the wire drawing portion 31 faces the axis of the first hole portion 30, and the shaping portion 2031 is away from the axis of the first hole portion 30, the inner diameter of the wire drawing portion 31 is larger than the outer diameter of the shaping portion 2031, and with this arrangement, the pipe processing device 100 moves along the direction X toward the pipe 6 to be processed, the shaping portion 2031 extends into the pipe end, and shapes the pipe end of the pipe 6 to be processed. After the shaping treatment, the pipe end enters the first hole portion 30, and the wire drawing portion 31 performs wire drawing process surface treatment on the outer wall of the pipe end, which can reduce the phenomenon of uneven wire drawing or no wire drawing on the surface of the pipe end.

[0028] For further information, see Figure 10-11The wire drawing die 3 includes a first guide hole portion 33, which is connected to the first hole portion 30. The first guide hole portion 33 is closer to the shaping portion 2031 than the first hole portion 30. Along the axial direction of the wire drawing die 3, the inner diameter of the first guide hole portion 33 gradually increases from the first hole portion 30 to the direction away from the first hole portion 30; the first guide hole portion 33 is mainly used to guide the pipe 6 to be processed when it enters the pipe processing device, so that the pipe 6 to be processed can smoothly, conveniently and quickly enter the first hole portion 30 of the wire drawing die 3 for wire drawing processing. Specifically, the wire drawing portion 31 includes a plurality of wire drawing protrusions 310, and the plurality of wire drawing protrusions 310 are spaced apart along the inner circumferential wall of the first hole portion 30, preferably evenly spaced apart, and the wire drawing protrusions 310 extend along the axial direction of the first hole portion 30. With this arrangement, the drawing protrusion 310 can form a drawing groove on the outer peripheral surface of the tube end. The drawing grooves are evenly spaced along the outer peripheral wall of the tube end and extend along the axial direction of the tube end. When the pipe fitting is subsequently welded with other refrigeration devices or pipeline fittings, the drawing grooves can guide the melted solder to improve the welding strength between the pipe fitting and other refrigeration devices or pipeline fittings.

[0029] For further information, see Figure 5 、 Figure 9 The shaping mold 2 also includes a fixing portion 21, which is fixedly connected to the shaping core rod 20 or is an integral structure; the shaping core rod 20 includes a connecting section 202 and a shaping section 203, which are fixedly connected to the shaping section 203 or are an integral structure, and the two ends of the connecting section 202 are fixedly connected to the fixing portion 21 and the shaping section 203 respectively. The mold base 1 includes a first mounting hole portion 10, and the fixing portion 21 is fixedly connected or limit-connected to the inner wall of the first mounting hole portion 10. Specifically, the first mounting hole portion 10 includes a boss portion 101, and the fixing portion 21 includes a first end face 210, which abuts against the boss portion 101 for axial limitation. The radial distance d1 from the drawing portion 31 to the connecting section 202 is greater than the radial distance d2 from the drawing portion 31 to the shaping portion 2031. With this arrangement, after the tube end passes through the shaping portion 2031 and enters the first hole portion 30 for wire drawing processing, the radial distance between the wire drawing portion 31 and the connecting section 202 is larger, so that the wall of the tube end will not be squeezed to make its wall thickness thinner. In addition, the deformation of the already formed wire drawing at the tube end by squeezing can be reduced.

[0030] For further information, see Figure 9The shaping section 203 is provided with a shaping portion 2031 for shaping the tube end. The outer diameter of the shaping section 203 is smaller than the outer diameter of the fixing portion 21, and the maximum outer diameter of the connecting section 202 is less than or equal to the minimum outer diameter of the shaping section 203. The shaping section 203 comprises a connecting portion 2030, a guide portion 2032, and a shaping portion 2031. The connecting portion 2030 is fixedly connected to the connecting section 202. The guide portion 2032 and the connecting portion 2030 are located on either side of the shaping portion 2031. The outer diameter of the shaping section 2033 gradually decreases from the shaping portion 2031 toward the guide portion 2032 and the connecting portion 2030. The shaping portion 2031 is a cylindrical surface extending circumferentially along the outer wall of the shaping mandrel 20, allowing for more convenient and uniform shaping of the tube end.

[0031] For further information, see Figure 5 、 Figure 12 The pipe processing device 100 includes a guide die 4. Along the axial direction of the first mounting hole portion 10, the guide die 4 is arranged between the fixed portion 21 and the drawing die 3. The fixed portion 21 includes a second end face 211. The guide die 4 includes a third end face 44 and a fourth end face 45. The third end face 44 abuts against the second end face 211 of the fixed portion 21 for axial limitation. The drawing die 3 includes a fifth end face 34 and a sixth end face 35. The fourth end face 45 abuts against the fifth end face 34 for axial limitation. The guide die 4 includes a second hole portion 40, through which the connecting section 202 is disposed. The first hole portion 30 and the second hole portion 40 are coaxially arranged. The inner diameter of the second hole portion 40 is smaller than that of the first hole portion 30. With this arrangement, after the wire drawing surface treatment is completed, the end of the tube 6 to be processed enters the second hole portion 40. The inner diameter of the second hole portion 40 is smaller than that of the first hole portion 30. The inner wall of the second hole portion 40 exerts a certain degree of compression on the tube end, reducing the outer diameter of the tube end. The section where the outer diameter of the tube end is reduced is called a diameter reduction section. The length of the diameter reduction section is preferably 1.5 mm, which is the same as the length of the first guide hole portion 33 of the wire drawing die 3. In this way, the length of the wire drawing die 3 is equal to the length of the wire drawing groove at the tube end. The diameter reduction section at the tube end facilitates press-fitting of the processed tube into the interface of other devices. The outer diameter of the tube end is reduced by 0.15 mm, which facilitates press-fitting without deforming the wire drawing groove.

[0032] Furthermore, a second guide hole 41 is provided at the end of the guide die 4 near the wire drawing die 3. The second guide hole 41 is connected to the second hole 40. Along the axial direction of the guide die 4, the inner diameter of the second guide hole 41 gradually increases from the second hole 40 toward the first hole 30. The second guide hole 41 can guide the pipe 6 to be processed after the wire drawing process, so that it can smoothly enter the guide die 4 for diameter reduction processing.

[0033] For further information, see Figure 5 、 Figure 7 、 Figure 8 The pipe processing device 100 includes a die cap 5, which includes a first mating portion 50, a second mating portion 51, and a third mating portion 52. The die base 1 includes a first end portion 11, and the wire drawing die 3 includes a step portion 32. The step portion 32 includes a first platform portion 320 and a second platform portion 321. The first mating portion 50 is threadedly connected to the first end portion 11, the second mating portion 51 is positionally connected to the first platform portion 320, and the third mating portion 52 is positionally connected to the second platform portion 321. Specifically, the outer peripheral wall of the first end portion 11 of the die base 1 is provided with an external thread, and the first mating portion 50 of the die cap 5 is provided with an internal thread. The first end portion 11 of the die base 1 and the first mating portion 50 of the die cap 5 are threadedly connected via internal and external threads. The outer wall of the mold cap 5 is provided with a first flat portion 53 and a second flat portion 54, and the first flat portion 53 and the second flat portion 54 are arranged opposite to each other. This arrangement makes it convenient to screw the mold cap 5 so that it is threadedly connected to the first end portion 11 of the mold base 1; of course, the outer wall of the mold cap 5 can also be provided with 4 flat portions or 6 flat portions, which makes it convenient to use a wrench to clamp and tighten the mold cap 5.

[0034] Here, the installation process of the pipe processing device 100 is described in detail: prepare the mold base 1, insert the fixing portion 21 of the shaping mold 2 into the first mounting hole portion 10 from the first end portion 11, and the first end face 210 of the fixing portion 21 abuts against the boss portion 101 for axial limitation; then insert the guide mold 4 into the first mounting hole portion 10 from the first end portion 11, and the third end face 44 of the guide mold 4 abuts against the second end face 211 of the fixing portion 21 for axial limitation, and the guide mold 4 is sleeved on the shaping core rod 20 of the shaping mold 2; insert the drawing mold 3 into the first mounting hole portion 10 from the first end portion 11, and the fifth end face 34 of the drawing mold 3 abuts against the guide mold 4. The fourth end face 45 of the die 4 is axially limited, and the drawing die 3 is sleeved on the shaping core rod 20 of the shaping die 2; finally, the die cap 5 is threadedly connected to the first end 11, and when the die cap 5 is screwed, the second matching portion 51 of the die cap 5 abuts against the first platform 320 of the drawing die 3, thereby axially limiting the shaping die 2, the guide die 4, and the drawing die 3 in the die seat 1, and the third matching portion 52 of the die cap 5 abuts and cooperates with the second platform 321 of the drawing die 3 to radially limit the drawing die 3, thereby reducing the radial movement or shaking generated during the operation of the drawing die 3 and improving the accuracy of the drawing process.

[0035] Here we need to explain the "penetrating" below. For example, the connecting section is penetrated in the second hole portion, which expresses at least the following schemes: 1. Both ends of the connecting section are protruding from the second hole portion; 2. Either end of the connecting section is protruding from the second hole portion; 3. Both ends of the connecting section are set in the second hole portion.

[0036] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make various modifications and variations without departing from the spirit of the present application, and all such modifications and variations fall within the scope of protection of the present application.

Claims

1. A pipe processing device (100), comprising a die base (1), a shaping die (2), and a wire drawing die (3), wherein at least a portion of the shaping die (2) and at least a portion of the wire drawing die (3) are fixedly arranged in the die base (1), the wire drawing die (3) comprises a first hole portion (30), and at least a portion of the inner wall of the first hole portion (30) is provided with a wire drawing portion (31), the shaping die (2) is passed through the first hole portion (30), the shaping die (2) comprises a shaping portion (2031), and at least a portion of the shaping portion (2031) is provided along the axial direction of the first hole portion (30) and protrudes from the first hole portion (30).

2. The pipe processing device according to claim 1, characterized in that: The shaping die (2) comprises a shaping core rod (20), the shaping core rod (20) comprises the shaping portion (2031), and the shaping portion (2031) extends along the circumferential direction of the outer peripheral wall of the shaping core rod (20).

3. The pipe processing device according to claim 2, characterized in that: Along the axial direction of the first hole portion (30), the wire drawing portion (31) and the shaping portion (2031) are staggered, the wire drawing portion (31) faces the axis of the first hole portion (30), and the shaping portion (2031) deviates from the axis of the first hole portion (30), and the minimum inner diameter of the wire drawing portion (31) is greater than the maximum outer diameter of the shaping portion (2031).

4. The pipe processing device according to claim 2 or 3, characterized in that: The shaping mandrel (20) includes a connecting section (202) and a shaping section (203), the shaping section (203) includes the shaping portion (2031), the connecting section (202) and the shaping section (203) are fixedly connected or are an integral structure, and the radial distance d1 from the drawing portion (31) to the connecting section (202) is greater than the radial distance d2 from the drawing portion (31) to the shaping portion (2031).

5. The pipe processing device according to claim 4, characterized in that: The shaping section (203) comprises a connecting portion (2030), a guiding portion (2032) and the shaping portion (2031); the connecting portion (2030) is fixedly connected to the connecting section (202); along the axial direction of the shaping mandrel (20), the guiding portion (2032) and the connecting portion (2030) are located on both sides of the shaping portion (2031); the outer diameter of the shaping section (203) gradually decreases from the shaping portion (2031) to the guiding portion (2032); and the outer diameter of the shaping section (203) gradually decreases from the shaping portion (2031) to the connecting portion (2030).

6. The pipe processing device according to claim 5, characterized in that: The shaping die (2) includes a fixing portion (21), the fixing portion (21) is fixedly connected to the shaping core rod (20) or is an integral structure; the die base (1) includes a first mounting hole portion (10), the fixing portion (21) is fixedly connected or position-limitedly connected to the inner wall of the first mounting hole portion (10); The pipe processing device (100) includes a guide die (4), which is arranged between the fixing portion (21) and the drawing die (3) along the axial direction of the first mounting hole portion (10), and the guide die (4) includes a second hole portion (40), and the connecting section (202) is passed through the second hole portion (40). The first hole portion (30) and the second hole portion (40) are coaxially arranged, and the inner diameter of the second hole portion (40) is smaller than the inner diameter of the first hole portion (30).

7. The pipe processing device according to claim 6, characterized in that: The wire drawing die (3) includes a first guide hole portion (33), the first guide hole portion (33) is connected to the first hole portion (30), and along the axial direction of the wire drawing die (3), the inner diameter of the first guide hole portion (33) gradually increases from the first hole portion (30) to a direction away from the first hole portion (30); The guide die (4) is provided with a second guide hole portion (41) at the end portion close to the wire drawing die (3), and the second guide hole portion (41) is connected to the second hole portion (40). Along the axial direction of the wire drawing die (3), the inner diameter of the second guide hole portion (41) gradually increases from the second hole portion (40) to the first hole portion (30).

8. The pipe processing device according to claim 7, characterized in that: The wire drawing portion (31) includes a plurality of wire drawing protrusions (310), and the plurality of wire drawing protrusions (310) are evenly spaced along the inner peripheral wall of the first hole portion (30), and the wire drawing protrusions (310) extend along the axial direction of the first hole portion (30).

9. The pipe processing device according to claim 8, characterized in that: The invention comprises a die cap (5), wherein the die cap (5) comprises a first matching portion (50), a second matching portion (51), and a third matching portion (52); the die base (1) comprises a first end portion (11); the wire drawing die (3) comprises a step portion (32); the step portion (32) comprises a first platform portion (320) and a second platform portion (321); the first matching portion (50) is threadedly connected to the first end portion (11); the second matching portion (51) is positionally connected to the first platform portion (320); and the third matching portion (52) is positionally connected to the second platform portion (321).

10. A pipe processing equipment, characterized in that: The invention comprises a pipe processing device (100) as described in any one of claims 1 to 9, a drive assembly (104), and a clamp assembly (103), wherein the clamp assembly (103) is used to clamp the pipe to be processed (6), and the drive assembly (104) drives the pipe processing device (100) to move closer to or away from the pipe to be processed (6) along the axial direction of the pipe processing device (100).

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