Groove rotating head

Abstract

The utility model provides a rotary groove head which comprises a base, a main shaft box movably installed on the base and a clamping die arranged on one side of the base, a rotary groove mechanism is rotatably installed on the side, close to the clamping die, of the main shaft box, and the rotary groove mechanism comprises a driving shaft, a sliding outer sleeve arranged outside the driving shaft in a sleeved mode and a driven shaft arranged on the inner side of the driving shaft. A plurality of spinning wheels are arranged on the side, close to the clamping die, of the driven shaft, the spinning wheels can move in the radial direction of the driven shaft, and when one side of the sliding outer sleeve abuts against the end face of the clamping die, the sliding outer sleeve and the driven shaft stop moving in the axial direction, the driving shaft continues moving in the axial direction, and the spinning wheels are driven to conduct spinning machining on a pipe fitting at the clamping die; guide rails are arranged on the two sides of the base, and the spindle box can reciprocate along the guide rails. A three-phase motor is arranged on one side of the spindle box, a synchronous belt wheel is arranged on the side, away from the clamping die, of the driving shaft, and the three-phase motor and the synchronous belt wheel are in transmission through a synchronous belt.

Description

Technical Field

[0001] The utility model relates to the field of pipe processing equipment, in particular to a groove turning head. Background Art

[0002] In order to fasten metal pipes and rubber pipes or metal pipes and metal pipes together in automobile pipelines, the end of the pipe needs to be processed into a circumferential groove structure by a grooving machine before it can be used. The demand for grooving machines in the field of automobile pipeline processing has only increased.

[0003] At present, in the spinning process of pipe ends, in order to realize the radial feed of the spinning wheel and the axial movement of the entire spinning mechanism, an axial servo motor is often used to drive and control the axial movement of the entire spinning mechanism, and a slider connecting rod mechanism driven by a radial feed servo + screw is used to control the radial feed of the spinning wheel. This mechanism has a complex structure, occupies a large space, and has high requirements for the processing and assembly of parts. Due to the large number of parts, the maintenance cost is also increased. Utility Model Content

[0004] The purpose of the utility model is to provide a groove rotating head which solves the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the utility model provides a grooving head, comprising a base, a spindle box movably mounted on the base, and a clamping die arranged on one side of the base, a grooving mechanism is rotatably installed on the side of the spindle box close to the clamping die, and the grooving mechanism comprises a driving shaft, a sliding sleeve sleeved on the outside of the driving shaft, and a driven shaft arranged on the inner side of the driving shaft, and a plurality of spinning wheels are arranged on the side of the driven shaft close to the clamping die, and the spinning wheels can move radially along the driven shaft, when one side of the sliding sleeve abuts against the end face of the clamping die, the sliding sleeve and the driven shaft stop axial movement, the driving shaft continues to move axially, and drives the plurality of spinning wheels to spin the pipe fittings at the clamping die; guide rails are arranged on both sides of the base, the spindle box can reciprocate along the guide rails, and a servo motor is arranged on one side of the base, and the servo motor controls the movement of the spindle box; a three-phase motor is arranged on one side of the spindle box, and a synchronous pulley is arranged on the side of the driving shaft away from the clamping die, and the three-phase motor and the synchronous pulley are driven by a synchronous belt, so that the three-phase motor controls the rotation of the driving shaft.

[0006] Furthermore, the driving shaft is provided with a plurality of limit grooves along the circumferential direction, the sliding sleeve and the driven shaft are connected by a plurality of pins, and the plurality of pins are passed through the limit grooves one by one, so that the sliding sleeve stops axial movement, and when the driving shaft continues to move axially, the pins move relative to the limit grooves.

[0007] Furthermore, a slide groove is provided on the driven shaft, one side of the spinning wheel is connected to the slider, and the slider is movably installed in the slide groove.

[0008] Furthermore, a first inclined surface is provided on one side of the slider, and a second inclined surface is circumferentially arranged on the inner side of the driving shaft. When the driven shaft stops axially moving and the driving shaft continues to move axially, the second inclined surface contacts and pushes the first inclined surface to make the slider move radially along the slide groove.

[0009] Furthermore, a first elastic member is connected between the sliding block and the inner side of the sliding groove.

[0010] Furthermore, a plurality of positioning grooves are provided on one side of the driven shaft, a plurality of second elastic members are provided between the driving shaft and the driven shaft, and the second elastic members are placed in the positioning grooves.

[0011] Furthermore, a retaining ring is circumferentially arranged on the inner side of one end of the sliding sleeve close to the clamping die, and a bearing is arranged between the retaining ring and the sliding sleeve. When the clamping die presses against one side of the retaining ring, the sliding sleeve can rotate relative to the retaining ring.

[0012] Furthermore, the spinning wheel is provided with a plurality of convex rings along the circumferential direction.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the sliding sleeve and the driven shaft stop axially moving, the driving shaft continues to move axially, and the second inclined surface pushes the first inclined surface, so that the spinning wheel moves radially. There is no need to set up an additional driving part to control the radial feed of the spinning wheel alone, which reduces the number of parts and reduces maintenance costs.

[0015] 2. The bearing and retaining ring structure on one side of the sliding sleeve can ensure that the sliding sleeve can continue to rotate circumferentially when the retaining ring is against the end face of the clamping die, so as to ensure that the driven shaft can stably drive several spinning wheels to perform spinning processing; 3. The first elastic member and the second elastic member can ensure the stable resetting of the spinning wheel and the driven shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a front view of the spinning mechanism in the utility model.

[0018] Figure 3 It is a schematic diagram of the internal structure of the spinning mechanism in the utility model.

[0019] Figure 4 It is a schematic diagram of the cooperation between the pipe fitting and the core rod in the utility model.

[0020] Figure 5 It is a structural schematic diagram of the driving shaft in the utility model.

[0021] Figure 6 It is a schematic diagram of the connection between the slider and the spinning wheel in the utility model.

[0022] Figure 7 It is a schematic diagram of the connection between the slider and the slide groove in the utility model.

[0023] Figure 8 It is a schematic diagram of the position of the first elastic member in the utility model.

[0024] Figure numerals: 1. base; 11. guide rail; 12. servo motor; 13. three-phase motor; 14. synchronous belt; 2. spindle box; 3. clamping die; 31. pipe fitting; 4. groove mechanism; 41. driving shaft; 42. sliding sleeve; 43. driven shaft; 44. spinning wheel; 45. limiting groove; 46. pin shaft; 47. slide groove; 48. slider; 49. first inclined surface; 410. second inclined surface; 411. first elastic member; 412. positioning groove; 413. second elastic member; 414. retaining ring; 415. bearing; 416. core rod; 417. convex ring; 418. sleeve ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0026] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0027] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0028] like Figure 1-8The utility model provides a grooving head, including a base 1, a spindle box 2 movably installed on the base 1, and a clamp 3 arranged on one side of the base 1. A grooving mechanism 4 is rotatably installed on the side of the spindle box 2 close to the clamp 3. The grooving mechanism 4 includes a driving shaft 41, a sliding sleeve 42 sleeved on the outside of the driving shaft 41, and a driven shaft 43 arranged on the inner side of the driving shaft 41. A plurality of spinning wheels 44 are arranged on the side of the driven shaft 43 close to the clamp 3, and the spinning wheels 44 can move radially along the driven shaft 43. When one side of the sliding sleeve 42 abuts against the end face of the clamp 3, the sliding sleeve 42 and the driven shaft 43 stop axial movement, the driving shaft 41 continues to move axially, and drives the plurality of spinning wheels 44 to spin the pipe fitting 31 at the clamp 3.

[0029] Specifically, the pipe fitting is placed on the clamping die for clamping and fixing, and then the spindle box drives the grooving mechanism to feed axially along the base, and at the same time the grooving mechanism as a whole rotates relative to the spindle box, and when one side of the sliding sleeve is against the end face of the clamping die, the sliding sleeve and the driven shaft stop axial movement and continue to rotate circumferentially, at this time the driving shaft continues to feed axially, and then drives a number of spinning wheels to move radially through the driving shaft, so that the several spinning wheels are close to the outer periphery of the pipe fitting, and through the circumferential rotation of the spinning mechanism as a whole, the several spinning wheels spin the outer periphery of the pipe fitting.

[0030] Among them, guide rails 11 are arranged on both sides of the base 1, the spindle box 2 can reciprocate along the guide rails 11, and a servo motor 12 is arranged on one side of the base 1, and the servo motor 12 controls the movement of the spindle box 2 through a screw drive; a three-phase motor 13 is arranged on one side of the spindle box 2, and a synchronous pulley is arranged on the side of the driving shaft 41 away from the clamping mold 3, and the three-phase motor 13 and the synchronous pulley are transmitted through a synchronous belt 14, so that the three-phase motor 13 controls the rotation of the driving shaft 41, and then controls the overall rotation of the spinning mechanism 4.

[0031] It is worth mentioning that the clamp in this scheme is used in the same way as the existing clamp. The clamp includes two clamping blocks arranged opposite to each other, and the two clamping blocks arranged opposite to each other are controlled by a cylinder or a hydraulic cylinder to move relative to or away from each other, thereby controlling the clamping or release of the clamp.

[0032] In one embodiment of the present solution, the spinning wheel 44 is provided with a plurality of convex rings 417 along the circumferential direction to ensure that a circumferential groove is formed on the outer circumference of the pipe after the spinning wheel spins the pipe.

[0033] Preferably, the driving shaft 41 is provided with a plurality of limit grooves 45 along the circumferential direction, the sliding sleeve 42 and the driven shaft 43 are connected by a plurality of pins 46, and the plurality of pins 46 are passed through the limit grooves 45 one by one, so that the sliding sleeve 42 stops axial movement, and when the driving shaft 41 continues to move axially, the pins 46 move relative to the limit grooves 45.

[0034] Specifically, the sliding sleeve and the driven shaft are connected and fixed by a pin, so that after one side of the sliding sleeve is against the clamp, the driven shaft is synchronously positioned to ensure the stability of the axial position of several spinning wheels; at the same time, due to the setting of the limiting groove, the pin can move relative to the limiting groove, so that after the sliding sleeve stops axial movement, the driving shaft can still move axially a certain distance, thereby ensuring the stability of the radial feed drive process of the driving shaft to the spinning wheel.

[0035] Among them, after the sliding sleeve is against the clamping die, the axial movable distance of the driving shaft is limited by the width of the limiting groove and the required radial displacement of the spinning wheel, that is, when the pin moves from one end of the limiting groove to the other end, the driving shaft moves axially to the maximum stroke, or the spinning wheel moves radially and completes the spinning process of the pipe fitting. The required radial displacement is the maximum stroke of the axial movement of the driving shaft.

[0036] Preferably, a slide groove 47 is formed on the driven shaft 43 , one side of the spinning wheel 44 is connected to a slide block 48 , and the slide block 48 is movably installed in the slide groove 47 .

[0037] Specifically, by means of the cooperation of the sliding block moving relative to the sliding groove, the spinning wheel can move radially relative to the driven shaft, thereby ensuring the stable movement and resetting of the spinning wheel.

[0038] Preferably, the slider 48 has a first inclined surface 49 on one side, and a second inclined surface 410 is circumferentially arranged on the inner side of the driving shaft 41. When the driven shaft 43 stops axial movement and the driving shaft 41 continues to move axially, the second inclined surface 410 contacts and pushes the first inclined surface 49 to make the slider 48 move radially along the slide groove 47.

[0039] Specifically, when the driven shaft stops axial feeding, the driving shaft continues axial feeding. At this time, the second inclined surface contacts the first inclined surface, and the second inclined surface is pushed against the second inclined surface. The driving shaft can synchronously push several sliders, so that several sliders synchronously drive several spinning wheels to perform radial feeding to ensure the stability of pipe spinning.

[0040] Preferably, a first elastic member 411 is connected to the inner side of the sliding block 48 and the sliding groove 47 .

[0041] Specifically, when the driving shaft is axially reset, the first elastic member assists the slider in rebounding, so that the slider is reset relative to the slide groove, thereby causing the spinning wheel to leave the pipe position.

[0042] Wherein, the first elastic member may adopt a spring structure.

[0043] Preferably, a plurality of positioning grooves 412 are formed on one side of the driven shaft 43 , a plurality of second elastic members 413 are disposed between the driving shaft 41 and the driven shaft 43 , and the second elastic members 413 are placed in the positioning grooves 412 .

[0044] Specifically, the position of the second elastic member is positioned by the positioning groove. When the driving shaft is axially reset, the driven shaft can be pushed and reset by the second elastic member, so that the sliding sleeve and the driven shaft are synchronously reset relative to the driving shaft to ensure subsequent stable use.

[0045] The second elastic member may be a spring structure.

[0046] Preferably, a retaining ring 414 is circumferentially arranged on the inner side of one end of the sliding sleeve 42 close to the clamp 3 , and a bearing 415 is arranged between the retaining ring 414 and the sliding sleeve 42 . When the clamp 3 presses against one side of the retaining ring 414 , the sliding sleeve 42 can rotate relative to the retaining ring 414 .

[0047] Specifically, the bearing is axially limited by the side of the retaining ring and the sliding sleeve, and the rotational coordination between the retaining ring and the sliding sleeve is ensured. When one side of the retaining ring is against the end face of the clamp, the sliding sleeve can continue to rotate circumferentially through the bearing, so that the bearing can effectively reduce the friction between the sliding sleeve and the clamp, thereby improving the stability of the spinning process.

[0048] Preferably, a core rod 416 is provided on the side of the driven shaft 43 close to the clamping die 3, and the axis of the core rod 416 is arranged colinearly with the axis of the driven shaft 43, so that when the tube 31 is spun, the core rod 416 is placed on the inner side of the processing position of the tube 31.

[0049] Specifically, the inner side of the pipe is supported by the core rod so that the pipe will not be excessively sunken inward during the spinning process, thereby effectively improving the spinning effect of the pipe.

[0050] Preferably, a collar 418 is sleeved on the outer periphery of the sliding sleeve 42 , and the collar 418 is located on the outer sides of the plurality of pins 46 .

[0051] Specifically, the outer sides of several pin shafts are shielded and protected by the collars to improve the connection stability between the sliding sleeve and the driven shaft.

[0052] In one embodiment of the present solution, the sleeve is provided with a plurality of through holes along the circumferential direction, and the pin shaft can be fastened through the plurality of through hole structures.

[0053] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A spiral groove head, characterized in that: The invention comprises a base (1), a spindle box (2) movably mounted on the base (1), and a clamping die (3) arranged on one side of the base (1); a groove mechanism (4) is rotatably mounted on a side of the spindle box (2) close to the clamping die (3); the groove mechanism (4) comprises a driving shaft (41), a sliding sleeve (42) sleeved on the outside of the driving shaft (41), and a driven shaft (43) arranged on the inside of the driving shaft (41); a plurality of spinning wheels (44) are arranged on a side of the driven shaft (43) close to the clamping die (3), and the spinning wheels (44) can move along the radial direction of the driven shaft (43); when one side of the sliding sleeve (42) abuts against the end face of the clamping die (3), the sliding sleeve (42) and the driven shaft (43) stop. The driving shaft (41) moves axially, and the driving shaft (41) continues to move axially, and drives a plurality of spinning wheels (44) to spin the pipe fitting (31) at the clamping die (3); guide rails (11) are arranged on both sides of the base (1), and the spindle box (2) can reciprocate along the guide rails (11), and a servo motor (12) is arranged on one side of the base (1), and the servo motor (12) controls the movement of the spindle box (2); a three-phase motor (13) is arranged on one side of the spindle box (2), and a synchronous pulley is arranged on the side of the driving shaft (41) away from the clamping die (3), and the three-phase motor (13) and the synchronous pulley are driven by a synchronous belt (14), so that the three-phase motor (13) controls the rotation of the driving shaft (41).

2. The groove head according to claim 1, characterized in that: The driving shaft (41) is provided with a plurality of limiting grooves (45) along the circumferential direction, and the sliding sleeve (42) and the driven shaft (43) are connected via a plurality of pins (46), and the plurality of pins (46) are passed through the limiting grooves (45) one by one, so that when the sliding sleeve (42) stops axial movement and the driving shaft (41) continues to move axially, the pins (46) move relative to the limiting grooves (45).

3. The groove head according to claim 1, characterized in that: A slide groove (47) is provided on the driven shaft (43), one side of the spinning wheel (44) is connected to a slide block (48), and the slide block (48) is movably installed in the slide groove (47).

4. The groove head according to claim 3, characterized in that: A first inclined surface (49) is provided on one side of the slider (48), and a second inclined surface (410) is provided on the inner side of the driving shaft (41) along the circumferential direction. When the driven shaft (43) stops axial movement and the driving shaft (41) continues to move axially, the second inclined surface (410) contacts and pushes the first inclined surface (49), so that the slider (48) moves radially along the slide groove (47).

5. The groove head according to claim 3, characterized in that: The sliding block (48) and the inner side of the sliding groove (47) are connected to a first elastic member (411).

6. The groove head according to claim 1, characterized in that: A plurality of positioning grooves (412) are provided on one side of the driven shaft (43); a plurality of second elastic members (413) are provided between the driving shaft (41) and the driven shaft (43); and the second elastic members (413) are placed in the positioning grooves (412).

7. The groove head according to claim 1, characterized in that: A retaining ring (414) is circumferentially arranged on the inner side of one end of the sliding sleeve (42) close to the clamping die (3), and a bearing (415) is arranged between the retaining ring (414) and the sliding sleeve (42). When the clamping die (3) abuts against one side of the retaining ring (414), the sliding sleeve (42) can rotate relative to the retaining ring (414).

8. The groove head according to claim 1, characterized in that: The spinning wheel (44) is provided with a plurality of convex rings (417) along the circumferential direction.

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