A kind of swinging head mechanism of swing mill

Abstract

The present invention discloses a swinging head mechanism of a swing mill, comprising a main body housing provided with a receiving chamber, a swinging head assembly, and an oil receiving piece; the swinging head assembly is swingably installed in the receiving chamber; the receiving chamber forms a first opening at the end face of the main body housing for exposing the swinging head of the swinging head assembly; the oil receiving piece comprises a swinging head connecting portion for connecting with the swinging head, and an oil receiving recess provided below the entire circumferential edge of the first opening, one end of the oil receiving recess is connected to the swinging head connecting portion, and at least part of the oil receiving recess can be deformed. In the present invention, the oil receiving piece and the swinging head are fixed in a closed manner, and the oil receiving piece relies on deformation to avoid affecting the swinging of the swinging head.

Description

Technical Field

[0001] The invention relates to the field of swing mills, in particular to a swing head mechanism of a swing mill. Background Art

[0002] Swing rolling is a new plastic forming method. By limiting the contact area between the tool and the blank, the deformation force can be reduced, so that a larger workpiece can be gradually formed with a smaller force. It has the advantages of labor saving, small impact, small vibration, small noise, energy saving and material saving, and high product precision. It is widely used in many industrial fields such as machinery, automobiles, electrical appliances, instruments, hardware tools, etc.; in the prior art, a sealing ring is used to seal between the swing head and the main body housing, but the sealing effect is reduced in the case of long-term swing operation, resulting in oil leakage; or an oil collecting part on the swing head side is open due to the swing of the swing head, which will also cause oil leakage. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides a swing head mechanism for a swing mill, wherein an oil receiving member and the swing head are fixed in a closed manner and the oil receiving member relies on deformation to avoid affecting the swing of the swing head.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A swing head mechanism of a swing mill comprises a main body shell provided with a accommodating cavity, a swing head assembly, and an oil receiving piece; the swing head assembly is swingably installed in the accommodating cavity; the accommodating cavity forms a first opening on the end face of the main body shell for exposing the swing head of the swing head assembly; the oil receiving piece comprises a swing head connecting portion for connecting with the swing head, and an oil receiving recess arranged below the entire circumferential edge of the first opening, one end of the oil receiving recess is connected to the swing head connecting portion, and at least part of the oil receiving recess can be deformed.

[0006] The upper die is mounted on the swing head of the swing head assembly through the first opening.

[0007] With the above structure, the swing head assembly swings in the accommodating cavity, so that the swing head drives the upper mold to swing synchronously to perform swing rolling molding on the product to be processed.

[0008] When the swing head swings in the accommodating chamber, the swing head contacts the inner wall of the accommodating chamber, so lubricating oil is arranged on the inner wall of the accommodating chamber accommodating the swing head, but the lubricating oil will flow out from the edge of the first opening along the inner wall of the accommodating chamber. In the above structure, the lubricating oil will drip into the oil receiving recess of the oil receiving member after flowing out from the edge of the first opening;

[0009] Since at least part of the oil receiving portion is deformable, when the swing head swings, the oil receiving member deforms along with the swing of the swing head by relying on its deformable portion, thereby preventing the oil receiving member from affecting the swing of the swing head.

[0010] Further, the oil receiving member includes a main body housing connecting portion for connecting to the main body housing, and the main body housing connecting portion is connected to the other end of the oil receiving recess.

[0011] Furthermore, the deformable portion of the oil receiving part is made of flexible material; the deformable portion of the oil receiving part depends on the flexibility of the material to deform; specifically, the entire oil receiving part is made of flexible material.

[0012] Furthermore, the oil receiving piece is made of rubber material.

[0013] Furthermore, the swing head mechanism of the swing roller includes a swing head pressure block arranged on the end surface where the swing head is connected to the swing head connecting part, and the swing head pressure block is recessed toward one side of the oil receiving part to form a first groove matching the swing head connecting part, and the swing head connecting part is inserted into the first groove and fixed.

[0014] Specifically, one side of the swing head pressure block facing the oil receiving piece is recessed at the contact point between the swing head pressure block and the swing head to form a first bottom surface and a first side wall. When the swing head pressure block is installed to the swing head, the first bottom surface and the end surface of the swing head on which the swing head pressure block is installed fix the swing head connecting part.

[0015] Furthermore, a heat insulating member is provided between the swing head pressing block and the swing head.

[0016] The oil receiving parts are made of rubber which is sensitive to heat.

[0017] Since a large amount of heat is generated when the mechanism is working, causing the temperature of the swing head to rise, by adopting the above structure, the heat insulating member can prevent or limit the heat on the swing head from being transferred to the oil receiving member.

[0018] Specifically, when the heat insulating member and the swing head pressing block are installed to the swing head, the first bottom surface and the end surface of the heat insulating member facing the swing head pressing block fix the swing head connecting part.

[0019] Furthermore, the swing head mechanism of the swing roller includes a main body casing pressure block arranged on the end face where the main body casing and the main body casing connecting part are connected, and the main body casing pressure block is recessed toward one side of the oil receiving part to form a second groove matching the main body casing connecting part, and the main body casing connecting part is inserted into the second groove and fixed.

[0020] Specifically, one side of the main engine casing pressing block facing the oil receiving piece is recessed at the contact point between the main engine casing pressing block and the main engine casing to form a second bottom surface and a second side wall. When the main engine casing pressing block is installed to the main engine casing, the second bottom surface and the end surface of the main engine casing on which the main engine casing pressing block is installed fix the main engine casing connecting part.

[0021] Further, the swing head assembly includes a driving shaft whose one end is connected to the swing head to drive the swing head to swing; the part of the accommodating cavity for accommodating the swing head is provided with a swing head seat, and the swing head has a convex spherical portion protruding toward the other end of the driving shaft along one end connected to the swing head along the driving shaft; correspondingly, the swing head seat has a first through hole for the driving shaft to pass through, and a concave spherical portion matching the convex spherical portion, and the opening formed by the concave spherical portion on the swing head seat is formed as the first opening.

[0022] With the above structure, the concave spherical portion of the swing head seat and the convex spherical portion of the swing head match each other, so that the swing assembly swings more stably, and the swing head seat simultaneously limits the upward movement of the swing head assembly.

[0023] Specifically, when the swing head swings, the convex spherical surface part contacts with the concave spherical surface part, so lubricating oil is disposed on the concave spherical surface part; the lubricating oil drips from the edge of the first opening along the concave spherical surface part to the oil receiving recess of the oil receiving piece.

[0024] Furthermore, the swing head mechanism of the swing mill includes an eccentric assembly and a bellows; the eccentric assembly includes an eccentric sleeve arranged in the accommodating cavity and rotating relative to the inner wall of the accommodating cavity; the swing head assembly includes a drive shaft, the drive shaft is movably connected to the eccentric sleeve, and an angle γ is formed between the axis of the drive shaft and the axis of the eccentric sleeve; one end of the bellows is connected to the main body housing, and the other end is connected to the swing head assembly.

[0025] The bellows refers to a component formed by connecting foldable corrugated sheets along the folding and expansion direction;

[0026] With the above structure, since the axis of the driving shaft and the axis of the eccentric sleeve form an angle γ, when the eccentric sleeve rotates, the swing head assembly swings.

[0027] Specifically, a first bearing is provided between the eccentric sleeve and the accommodating cavity to realize the rotational installation of the eccentric sleeve; more specifically, the first bearing is a double-row cylindrical roller bearing.

[0028] Specifically, the eccentric sleeve is provided with an eccentric hole, the axis of the eccentric hole forms an angle γ with the axis of the eccentric sleeve itself, and the drive shaft is installed in the eccentric hole; in the above structure, since the axis of the eccentric hole forms an angle γ with the axis of the eccentric sleeve itself, the drive shaft of the swing head assembly is installed in the eccentric hole, and thus the axis of the drive shaft also forms an angle γ with the axis of the eccentric sleeve itself.

[0029] The γ angle can be determined according to actual usage, such as the γ angle is 1 degree.

[0030] Although the eccentric sleeve is movably connected to the swing head assembly, friction is inevitable between the two. At this time, the eccentric sleeve will drive the swing head assembly to rotate around the axis of the drive shaft. Since the end of the bellows connected to the main body shell is fixed, the end of the bellows connected to the swing head assembly cannot rotate around the axis of the drive shaft, that is, the two ends of the bellows are rigid in rotation. Therefore, the setting of the bellows can effectively avoid the rotation of the swing head assembly, so that the swing head assembly can only swing but not rotate, thereby improving the stability of the mechanism operation. The bellows has a folding structure, that is, it can be retracted, so it avoids affecting the swing of the swing head assembly.

[0031] The bellows is sleeved outside the driving shaft.

[0032] Furthermore, the inner wall of the accommodating cavity protrudes to form a first mounting boss for connecting to one end of the bellows; the end of the bellows connected to the main housing is provided with a first mounting portion, which extends toward the inner wall of the accommodating cavity and is fixedly connected to the first mounting boss.

[0033] The corrugated pipe is mounted on the first mounting boss via the first mounting portion, and the first mounting portion is fixedly mounted on the upper surface of the first mounting boss via fasteners such as screws.

[0034] Furthermore, a drive sleeve is sleeved outside the drive shaft and the drive sleeve cannot rotate relative to the drive shaft; a second mounting portion is provided at one end of the bellows connected to the swing head assembly, and the second mounting portion is mounted on the drive sleeve and the second mounting portion cannot rotate relative to the drive sleeve.

[0035] The outer wall of the drive shaft is recessed to form a first anti-rotation groove, and correspondingly, the inner side of the drive sleeve is recessed to form a second anti-rotation groove matching the first anti-rotation groove; the first anti-rotation groove and the second anti-rotation groove are matched to install a first anti-rotation block to limit the rotation of the drive sleeve on the drive shaft.

[0036] The second mounting portion of the bellows is recessed toward one side of the drive sleeve to form a third anti-rotation groove, and the outer side of the drive sleeve is recessed to form a fourth anti-rotation groove matching the third anti-rotation groove; the third anti-rotation groove and the fourth anti-rotation groove are matched to install a second anti-rotation block to limit the rotation of the bellows on the drive sleeve and realize the installation of the two.

[0037] The first mounting portion of the bellows is recessed to form a fifth anti-rotation groove, the first mounting boss is recessed to form a sixth anti-rotation groove matching the fifth anti-rotation groove, and the fifth anti-rotation groove and the sixth anti-rotation groove are matched to install a third anti-rotation block to limit the rotation of the bellows on the main housing.

[0038] Furthermore, a face seat is installed on the part of the accommodating cavity for accommodating the driving shaft, and a face cover is provided on the face seat, and the face cover is connected to the driving shaft; a first arc-shaped face portion is provided at the contact between the face seat and the face cover; correspondingly, a second arc-shaped face portion matching the first arc-shaped face portion is provided at the contact between the face cover and the face seat.

[0039] With the above structure, the face cover and the face seat are used for the swing of the swing assembly, and the cooperation between the two can make the swing of the swing assembly more stable; generally, the swing head mechanism of the swing mill is generally hung above the processed product, and the cooperation between the face seat and the face mask enables the accommodating cavity, that is, the main body shell, to bear the weight of the swing head assembly; at the same time, the cooperation between the face seat and the face mask can limit the downward movement of the swing head assembly.

[0040] The first arcuate surface portion and the second arcuate surface portion are respectively arranged at the contacting position between the surface seat and the surface cover so that the surface cover can swing along with the driving shaft, and the arrangement of the surface seat and the surface cover has no influence on the swinging head.

[0041] Furthermore, the face cover is connected to the drive shaft via a drive shaft sleeve sleeved outside the drive shaft; the face cover is provided with a second through hole for the drive shaft to pass through, and the aperture of the second through hole is larger than the diameter of the connection between the drive shaft and the face cover; the drive shaft sleeve has an extending portion extending into the gap between the face cover and the drive shaft and matching the aperture of the second through hole, and a pressure-bearing portion pressed onto the upper surface of the face cover.

[0042] With the above structure, when the drive shaft swings, the drive shaft drives the drive shaft sleeve to swing synchronously, and the protruding portion of the drive shaft sleeve drives the surface cover to swing synchronously;

[0043] The pressure-bearing portion of the driving shaft sleeve is pressed on the surface cover, and the weight of the swing head assembly is transferred to the main machine housing through the driving shaft sleeve and the surface cover.

[0044] The outer wall of one end of the drive sleeve facing the surface cover is recessed inwards, the recessed portion of the side wall of the drive sleeve forms the extending portion, and the convex portion forms the pressure-bearing portion.

[0045] Furthermore, the swing head mechanism of the swing roller includes a first locking member sleeved on the drive shaft and located above the drive shaft sleeve, and a second locking member. The first locking member and the second locking member are installed on the drive shaft through threads and the installation directions of the two are opposite.

[0046] With the above structure, the first locking member and the second locking member are used to place the drive sleeve on the drive shaft to slide upward, thereby ensuring that the drive sleeve is pressed onto the surface cover.

[0047] The first locking member and the second locking member are installed on the driving shaft through threads and the installation directions of the two are opposite, which can effectively prevent the first locking member and the second locking member from loosening during the operation of the mechanism.

[0048] Furthermore, the accommodating cavity is used to accommodate the inner wall protrusion of the driving shaft portion to form a second mounting boss, and the surface seat is installed on the upper surface of the second mounting boss.

[0049] Furthermore, the swing head mechanism of the swing roller includes a main driving assembly for driving the eccentric sleeve to rotate;

[0050] The eccentric assembly includes a first drive connector for connecting the eccentric sleeve and the main drive assembly; the main drive assembly includes a second drive connector matched with the first drive connector.

[0051] With the above structure, the main drive assembly is drivingly connected to the eccentric sleeve through the cooperation of the first drive connector and the second drive connector; the accommodating cavity forms a second opening on the main housing for power input of the main drive assembly.

[0052] Specifically, the first drive connector is provided with a transmission groove, and the second drive connector is provided with a transmission protrusion matching the transmission groove. The transmission groove is in a cross shape, and correspondingly, the transmission protrusion is in a cross shape.

[0053] Furthermore, the main drive assembly includes a motor and a reduction device, the output shaft of the motor is connected to the input end of the reduction device, the second drive connector is provided with a transmission sleeve, and the output shaft of the reduction device is inserted into the transmission sleeve.

[0054] With the above structure, the motor transmits power to the reduction device through the connection between its output shaft and the reduction device. The output end of the reduction device rotates to drive the transmission sleeve to rotate, and the rotation of the transmission sleeve synchronously drives the second drive connector to rotate.

[0055] Furthermore, the main drive assembly includes a transmission housing, one end of which is connected to the main engine housing, and the other end is connected to the reduction device, the output shaft of the reduction device is located in the transmission housing, and the transmission sleeve is rotatably installed in the transmission housing.

[0056] Specifically, a second bearing is provided between the transmission sleeve and the rotating housing to realize the rotational installation of the transmission sleeve. More specifically, the second bearing is a single-row cylindrical roller bearing.

[0057] There are two second bearings, which are respectively sleeved outside the transmission sleeve. An inner bearing washer matching the inner diameters of the two second bearings and an outer bearing washer matching the outer diameters of the two second bearings are arranged between the two second bearings.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] (1) The oil receiving member of the swing head mechanism of the swing roller of the present invention is fixed to the swing head in a closed manner, and the oil receiving member relies on deformation to avoid affecting the swing of the swing head.

[0060] (2) The oil receiving part of the swing head mechanism of the swing roller of the present invention is fixed to the main machine housing in a closed manner, which further improves the oil sealing effect.

[0061] (3) The swing head mechanism of the swing mill of the present invention is provided with a heat insulating member to prevent the heat generated during the operation of the mechanism from affecting the oily parts.

[0062] (4) The swing head mechanism structure of the swing mill of the present invention is reasonably designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 It is a three-dimensional structural schematic diagram of the swing head mechanism of the swing roller of the present invention;

[0064] Figure 2 It is a cross-sectional structural schematic diagram of the swing head mechanism of the swing roller of the present invention;

[0065] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0066] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0067] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0068] Figure 6 It is a schematic diagram of the installation structure of the oil receiving part in the swing head mechanism of the swing mill of the present invention;

[0069] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0070] Figure 8 for Figure 6 Enlarged view of point E in the middle;

[0071] Fig. 9 for Figure 6 Enlarged view of point F in the middle;

[0072] Fig.10 It is a cross-sectional structural schematic diagram of an eccentric assembly and a swing head assembly in the swing head mechanism of a swing roller according to the present invention;

[0073] Fig.11 for Fig.10 Enlarged view of point G in the middle;

[0074] Fig.12 It is an exploded view of the partial structure of the swing head mechanism of the swing roller of the present invention;

[0075] Fig.13 It is a structural schematic diagram of the main machine housing in the swing head mechanism of the swing roller of the present invention;

[0076] Fig.14 It is a structural schematic diagram of the main machine housing with the swing head seat in the swing head mechanism of the swing roller of the present invention;

[0077] Fig.15 It is a schematic diagram of the structure of the bellows and the drive shaft sleeve in the swing head mechanism of the swing roller of the present invention;

[0078] Figure numerals: 1 main housing; 101 accommodating cavity; 102 first mounting boss; 1021 sixth anti-rotation groove; 103 second mounting boss; 104 first opening; 105 second opening; 2 eccentric assembly; 201 eccentric sleeve; 202 first driving connector; 3 swing head assembly; 301 driving shaft; 3011 first anti-rotation groove; 302 swing head; 3021 convex spherical surface; 4 bellows; 401 first mounting portion; 4011 fifth anti-rotation groove; 402 second mounting portion; 4021 third anti-rotation groove; 6 driving sleeve; 601 extending portion; 602 pressure bearing portion; 603 second anti-rotation groove; 604 fourth anti-rotation groove; 7 swing head seat; 701 first Insert hole; 702 concave spherical surface; 8 seat; 801 first arcuate surface; 9 cover; 901 second arcuate surface; 902 second insert hole; 10 first locking piece; 11 second locking piece; 12 main drive assembly; 1201 second drive connecting piece; 1202 motor; 1203 reduction gear; 1204 transmission housing; 13 first bearing; 14 second bearing; 15 bearing inner washer; 16 bearing outer washer; 17 transmission sleeve; 18 oil receiving piece; 1801 swing head connecting part; 1802 oil receiving recess; 1803 main engine housing connecting part; 19 swing head pressure block; 1901 first groove; 20 main engine housing pressure block; 2001 second groove; 21 thermal insulation piece. DETAILED DESCRIPTION

[0079] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0080] like Figure 1 As shown in FIG. 15 , a swing head mechanism of a swing mill comprises a main body shell 1 provided with a accommodating cavity 101, a swing head assembly 3, and an oil receiving piece 18; the swing head assembly 3 is swingably installed in the accommodating cavity 101; the accommodating cavity 101 forms a first opening 104 on the end face of the main body shell 1 for exposing the swing head 302 of the swing head assembly 3; the oil receiving piece 18 comprises a swing head connecting portion 1801 for connecting with the swing head 302, and an oil receiving recess 1802 arranged below the entire circumferential edge of the first opening 104, one end of the oil receiving recess 1802 is connected to the swing head connecting portion 1801, and at least part of the oil receiving recess 1802 can be deformed.

[0081] The upper die is mounted on the swing head 302 of the swing head assembly 3 through the first opening 104 .

[0082] With the above structure, the swing head assembly 3 swings in the accommodating cavity 101, so that the swing head 302 drives the upper mold to swing synchronously to perform swing rolling molding on the product to be processed.

[0083] When the swing head 302 swings in the accommodating chamber 101, the swing head 302 contacts the inner wall of the accommodating chamber 101, so lubricating oil is disposed on the inner wall of the accommodating chamber 101 accommodating the swing head 302, but the lubricating oil will flow out from the edge of the first opening 104 along the inner wall of the accommodating chamber 101. In the above structure, the lubricating oil will drip into the oil receiving recess 1802 of the oil receiving member 18 after flowing out from the edge of the first opening 104.

[0084] Since at least part of the oil receiving portion is deformable, when the swing head 302 swings, the oil receiving member 18 is deformed by the deformable portion thereof along with the swing of the swing head 302 , thereby preventing the oil receiving member 18 from affecting the swing of the swing head 302 .

[0085] Preferably, the oil receiving member 18 includes a main body housing connecting portion 1803 for connecting to the main body housing 1 , and the main body housing connecting portion 1803 is connected to the other end of the oil receiving recess 1802 .

[0086] Preferably, the deformable portion of the oil receiving portion is made of flexible material; the deformable portion of the oil receiving portion relies on the flexibility of the material to deform; specifically, the entire oil receiving member 18 is made of flexible material.

[0087] Preferably, the oil receiving member 18 is made of rubber material.

[0088] like Figure 5 , Figure 6-9 As shown, preferably, the swing head mechanism of the swing mill includes a swing head pressure block 19 arranged on the end face where the swing head 302 is connected to the swing head connecting part 1801, and the swing head pressure block 19 is recessed toward one side of the oil receiving part 18 to form a first groove 1901 matching the swing head connecting part 1801, and the swing head connecting part 1801 is inserted into the first groove 1901 and fixed.

[0089] Specifically, one side of the swing head pressure block 19 facing the oil receiving piece 18 is recessed at the contact point between the swing head pressure block 19 and the swing head 302 to form a first bottom surface and a first side wall. When the swing head pressure block 19 is installed to the swing head 302, the first bottom surface and the end surface of the swing head 302 on which the swing head pressure block 19 is installed fix the swing head connecting part 1801.

[0090] Preferably, a heat insulating member 21 is provided between the swing head pressing block 19 and the swing head 302 .

[0091] The oil receiving member 18 is made of rubber which is relatively sensitive to heat.

[0092] Since a large amount of heat is generated when the mechanism is working, causing the temperature of the swing head 302 to rise, by adopting the above structure, the heat insulation member 21 can prevent or limit the heat on the swing head 302 from being transferred to the oil receiving member 18.

[0093] Specifically, when the heat insulating member 21 and the swing head pressing block 19 are installed to the swing head 302 , the first bottom surface and the end surface of the heat insulating member 21 facing the swing head pressing block 19 fix the swing head connecting portion 1801 .

[0094] Preferably, the swing head mechanism of the swing roller includes a main housing pressure block 20 arranged on the end face where the main housing 1 is connected to the main housing connecting part 1803, and the main housing pressure block 20 is recessed toward one side of the oil receiving part 18 to form a second groove 2001 matching the main housing connecting part 1803, and the main housing connecting part 1803 is inserted into the second groove 2001 for fixation.

[0095] Specifically, the side of the main engine housing block 20 facing the oil receiving piece 18 is recessed at the contact point between the main engine housing block 20 and the main engine housing 1 to form a second bottom surface and a second side wall. When the main engine housing block 20 is installed to the main engine housing 1, the second bottom surface and the end surface of the main engine housing block 20 installed on the main engine housing 1 fix the main engine housing connecting portion 1803.

[0096] like Figure 2 As shown, preferably, the swing head assembly 3 includes a driving shaft 301 whose one end is connected to the swing head 302 to drive the swing head 302 to swing; the part of the accommodating cavity 101 for accommodating the swing head 302 is provided with a swing head seat 7, and the swing head 302 has a convex spherical portion 3021 protruding toward the other end of the driving shaft 301 along one end connected to the swing head 302 along the driving shaft 301; correspondingly, the swing head seat 7 has a first insertion hole 701 for the driving shaft 301 to pass through, and a concave spherical portion 702 matching the convex spherical portion 3021, and the opening formed by the concave spherical portion 702 on the swing head seat 7 is formed as the first opening 104.

[0097] With the above structure, the concave spherical portion 702 of the swing head seat 7 and the convex spherical portion 3021 of the swing head 302 match each other, so that the swing assembly swings more stably, and the swing head seat 7 limits the upward movement of the swing head assembly 3 at the same time.

[0098] Specifically, when the swing head 302 swings, the convex spherical portion 3021 contacts and cooperates with the concave spherical portion 702 , so lubricating oil is disposed on the concave spherical portion 702 ; the lubricating oil drips from the edge of the first opening 104 along the concave spherical portion 702 to the oil receiving recess 1802 of the oil receiving piece 18 .

[0099] Preferably, the swing head mechanism of the swing mill includes an eccentric assembly 2 and a bellows 4; the eccentric assembly 2 includes an eccentric sleeve 201 arranged in the accommodating cavity 101 and rotating relative to the inner wall of the accommodating cavity 101; the swing head assembly 3 includes a drive shaft 301, the drive shaft 301 is movably connected to the eccentric sleeve 201, and the axis of the drive shaft 301 forms an angle γ with the axis of the eccentric sleeve 201; one end of the bellows 4 is connected to the main body housing 1, and the other end is connected to the swing head assembly 3.

[0100] The bellows 4 refers to a component formed by connecting foldable corrugated sheets along the folding and telescopic direction;

[0101] With the above structure, since the axis of the driving shaft 301 forms an angle γ with the axis of the eccentric sleeve 201, when the eccentric sleeve 201 rotates, the swing head assembly 3 swings.

[0102] Specifically, a first bearing 13 is provided between the eccentric sleeve 201 and the accommodating cavity 101 to realize the rotational installation of the eccentric sleeve 201; more specifically, the first bearing 13 is a double-row cylindrical roller bearing.

[0103] Specifically, the eccentric sleeve 201 is provided with an eccentric hole, the axis of the eccentric hole forms an angle γ with the axis of the eccentric sleeve 201 itself, and the drive shaft 301 is installed in the eccentric hole; in the above structure, since the axis of the eccentric hole forms an angle γ with the axis of the eccentric sleeve 201 itself, the drive shaft 301 of the swing head assembly 3 is installed in the eccentric hole, and thus the axis of the drive shaft 301 also forms an angle γ with the axis of the eccentric sleeve 201 itself.

[0104] The γ angle can be determined according to actual usage, such as the γ angle is 1 degree.

[0105] Although the eccentric sleeve 201 is movably connected to the swing head assembly 3, friction is inevitable between the two. At this time, the eccentric sleeve 201 will drive the swing head assembly 3 to rotate around the axis of the drive shaft 301. Since the end of the bellows 4 connected to the main body housing 1 is fixed, the end of the bellows 4 connected to the swing head assembly 3 cannot rotate around the axis of the drive shaft 301, that is, the two ends of the bellows 4 are rigid in rotation. Therefore, the setting of the bellows 4 can effectively avoid the rotation of the swing head assembly 3, so that the swing head assembly 3 can only swing but not rotate, thereby improving the stability of the mechanism operation. In addition, the bellows 4 has a folding structure, that is, it can be retracted, so it avoids affecting the swing of the swing head assembly 3.

[0106] The bellows 4 is sleeved outside the driving shaft 301 .

[0107] Preferably, the inner wall of the accommodating cavity 101 protrudes to form a first mounting boss 102 for connecting to one end of the bellows 4; the end of the bellows 4 connected to the main housing 1 is provided with a first mounting portion 401, and the first mounting portion 401 extends toward the inner wall of the accommodating cavity 101 and is fixedly connected to the first mounting boss 102.

[0108] The bellows 4 is mounted on the first mounting boss 102 via the first mounting portion 401 , and the first mounting portion 401 is fixedly mounted on the upper surface of the first mounting boss 102 via fasteners such as screws.

[0109] Preferably, the drive shaft 301 is sheathed with a drive sleeve 6 and the drive sleeve 6 cannot rotate relative to the drive shaft 301; the end of the bellows 4 connected to the swing head assembly 3 is provided with a second mounting portion 402, and the second mounting portion 402 is mounted on the drive sleeve 6 and the second mounting portion 402 cannot rotate relative to the drive sleeve 6.

[0110] The outer wall of the driving shaft 301 is recessed to form a first anti-rotation groove 3011, and correspondingly, the inner side of the driving sleeve 6 is recessed to form a second anti-rotation groove 603 matching the first anti-rotation groove 3011; the first anti-rotation groove 3011 and the second anti-rotation groove 603 are matched to install a first anti-rotation block to limit the rotation of the driving sleeve 6 on the driving shaft 301.

[0111] The second mounting portion 402 of the bellows 4 is recessed toward one side of the drive sleeve 6 to form a third anti-rotation groove 4021, and the outer side of the drive sleeve 6 is recessed to form a fourth anti-rotation groove 604 matching the third anti-rotation groove 4021; the third anti-rotation groove 4021 and the fourth anti-rotation groove 604 are matched to install a second anti-rotation block to limit the rotation of the bellows 4 on the drive sleeve 6 and realize the installation of the two.

[0112] The first mounting portion 401 of the bellows 4 is recessed to form a fifth anti-rotation groove 4011, and the first mounting boss 102 is recessed to form a sixth anti-rotation groove 1021 matching the fifth anti-rotation groove 4011. The fifth anti-rotation groove 4011 and the sixth anti-rotation groove 1021 are matched to install a third anti-rotation block to limit the rotation of the bellows 4 on the main housing 1.

[0113] Preferably, the part of the accommodating cavity 101 for accommodating the driving shaft 301 is installed with a face seat 8, and the face seat 8 is covered with a face cover 9, and the face cover 9 is connected to the driving shaft 301; a first curved surface part 801 is provided at the contact between the face seat 8 and the face cover 9; correspondingly, a second curved surface part 901 matching the first curved surface part 801 is provided at the contact between the face cover 9 and the face seat 8.

[0114] With the above structure, the face cover 9 and the face seat 8 are used for the swing of the swing assembly, and the cooperation between the two can make the swing of the swing assembly more stable; generally, the swing head mechanism of the swing mill is generally hung above the processed product, and the cooperation between the face seat 8 and the face mask enables the accommodating cavity 101, that is, the main body shell 1, to bear the weight of the swing head assembly 3; at the same time, the cooperation between the face seat 8 and the face mask can limit the downward movement of the swing head assembly 3.

[0115] The first arcuate surface portion 801 and the second arcuate surface portion 901 are respectively arranged at the contacting position between the surface seat 8 and the surface cover 9 so that the surface cover 9 can swing along with the driving shaft 301 . The arrangement of the surface seat 8 and the surface cover 9 has no effect on the swinging head 302 .

[0116] Preferably, the face cover 9 is connected to the drive shaft 301 via a drive shaft sleeve 6 which is sleeved on the outside of the drive shaft 301; the face cover 9 is provided with a second through hole 902 for the drive shaft 301 to pass through, and the aperture of the second through hole 902 is larger than the diameter of the connection between the drive shaft 301 and the face cover 9; the drive shaft sleeve 6 has an extending portion 601 which extends into the gap between the face cover 9 and the drive shaft 301 and matches the aperture of the second through hole 902, and a pressure-bearing portion 602 which is pressed on the upper surface of the face cover 9.

[0117] With the above structure, when the driving shaft 301 swings, the driving shaft 301 drives the driving sleeve 6 to swing synchronously, and the extending portion 601 of the driving sleeve 6 drives the surface cover 9 to swing synchronously;

[0118] The pressure-bearing portion 602 of the driving shaft sleeve 6 is pressed onto the surface cover 9 , so that the weight of the swing head assembly 3 is transferred to the main machine housing 1 through the driving shaft sleeve 6 and the surface cover 9 .

[0119] The outer wall of one end of the driving sleeve 6 facing the surface cover 9 is recessed inwards, the recessed portion of the side wall of the driving sleeve 6 forms the extending portion 601 , and the convex portion forms the pressure-bearing portion 602 .

[0120] Preferably, the swing head mechanism of the swing mill includes a first locking member 10 which is sleeved on the drive shaft 301 and located above the drive shaft sleeve 6, and a second locking member 11. The first locking member 10 and the second locking member 11 are installed on the drive shaft 301 by threads and the installation directions of the two are opposite.

[0121] With the above structure, the first locking member 10 and the second locking member 11 are used to place the drive sleeve 6 to slide upward on the drive shaft 301 , thereby ensuring that the drive sleeve 6 is pressed onto the surface cover 9 .

[0122] The first locking member 10 and the second locking member 11 are installed on the driving shaft 301 by threads and the installation directions of the two are opposite, which can effectively prevent the first locking member 10 and the second locking member 11 from loosening during the operation of the mechanism.

[0123] Preferably, the inner wall protrusion of the accommodating cavity 101 for accommodating a portion of the driving shaft 301 forms a second mounting boss 103 , and the surface seat 8 is mounted on the upper surface of the second mounting boss 103 .

[0124] like Figure 4 As shown, preferably, the swing head mechanism of the swing roller includes a main driving assembly 12 for driving the eccentric sleeve 201 to rotate;

[0125] The eccentric assembly 2 includes a first driving connector 202 for connecting the eccentric sleeve 201 and the main driving assembly 12 ; the main driving assembly 12 includes a second driving connector 1201 matched with the first driving connector 202 .

[0126] With the above structure, the main drive assembly 12 is driven and connected to the eccentric sleeve 201 through the cooperation of the first drive connector 202 and the second drive connector 1201; the accommodating cavity 101 forms a second opening 105 on the main housing 1 for power input of the main drive assembly 12.

[0127] Specifically, the first driving connector 202 is provided with a transmission groove, and the second driving connector 1201 is provided with a transmission protrusion matching the transmission groove, the transmission groove is in a cross shape, and correspondingly, the transmission protrusion is in a cross shape.

[0128] Preferably, the main drive assembly 12 includes a motor 1202 and a reduction device 1203, the output shaft of the motor 1202 is connected to the input end of the reduction device 1203, the second drive connector 1201 is provided with a transmission sleeve, and the output shaft of the reduction device 1203 is inserted into the transmission sleeve.

[0129] With the above structure, the motor 1202 transmits power to the reduction device 1203 through the connection between its output shaft and the reduction device 1203. The output end of the reduction device 1203 rotates to drive the transmission sleeve to rotate, and the rotation of the transmission sleeve synchronously drives the second drive connector 1201 to rotate.

[0130] Preferably, the main drive assembly 12 includes a transmission housing 1204, one end of the transmission housing 1204 is connected to the main housing 1, and the other end is connected to the reduction device 1203, the output shaft of the reduction device 1203 is located in the transmission housing 1204, and the transmission sleeve 17 is rotatably installed in the transmission housing 1204.

[0131] Specifically, a second bearing 14 is provided between the transmission sleeve 17 and the rotating housing to realize the rotational installation of the transmission sleeve 17. More specifically, the second bearing 14 is a single-row cylindrical roller bearing.

[0132] Two second bearings 14 are provided, which are respectively sleeved outside the transmission sleeve 17 , and a bearing inner washer 15 matching the inner diameters of the two second bearings 14 and a bearing outer washer 16 matching the outer diameters of the two second bearings 14 are provided between the two second bearings 14 .

[0133] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A swing head mechanism for a swing mill, characterized in that: The invention comprises a main body housing (1) provided with a receiving cavity (101), a swing head assembly (3), and an oil receiving member (18); the swing head assembly (3) is swingably mounted in the receiving cavity (101); the receiving cavity (101) forms a first opening (104) on the end surface of the main body housing (1) for exposing a swing head (302) of the swing head assembly (3); the oil receiving member (18) comprises a swing head connecting portion (1801) for connecting to the swing head (302), and an oil receiving recess (1802) provided below the entire circumference of the first opening (104); one end of the oil receiving recess (1802) is connected to the swing head connecting portion (1801), and at least a part of the oil receiving recess (1802) can be deformed; The swing head mechanism of the swing mill comprises a swing head pressure block (19) arranged on the end surface where the swing head (302) is connected to the swing head connecting portion (1801); the swing head pressure block (19) is recessed toward one side of the oil receiving member (18) to form a first groove (1901) matching the swing head connecting portion (1801); the swing head connecting portion (1801) is inserted into the first groove (1901) for fixation; A heat insulating member (21) is provided between the swing head pressing block (19) and the swing head (302); The swinging head mechanism of the swing mill comprises a main body housing pressure block (20) arranged on an end surface where the main body housing (1) is connected to a main body housing connecting portion (1803); the main body housing pressure block (20) is recessed on one side of the oil receiving member (18) to form a second groove (2001) matching the main body housing connecting portion (1803); the main body housing connecting portion (1803) is inserted into the second groove (2001) for fixation; The swing head mechanism of the swing mill comprises an eccentric assembly (2) and a bellows (4); the eccentric assembly (2) comprises an eccentric sleeve (201) which is arranged in the accommodating cavity (101) and rotates relative to the inner wall of the accommodating cavity (101); the swing head assembly (3) comprises a drive shaft (301), the drive shaft (301) is movably connected to the eccentric sleeve (201), and an axis of the drive shaft (301) forms an angle γ with an axis of the eccentric sleeve (201); one end of the bellows (4) is connected to the main machine housing (1), and the other end is connected to the swing head assembly (3).

2. The swing head mechanism of the swing mill according to claim 1, characterized in that: The oil receiving member (18) comprises a main engine housing connecting portion (1803) for connecting to the main engine housing (1), and the main engine housing connecting portion (1803) is connected to the other end of the oil receiving recess (1802).

3. The swing head mechanism of the swing mill according to claim 1, characterized in that: The oil receiving member (18) is made of rubber material.

4. The swing head mechanism of the swing mill according to claim 1, characterized in that: The swing head assembly (3) comprises a driving shaft (301) having one end connected to the swing head (302) so as to drive the swing head (302) to swing; a portion of the accommodating cavity (101) for accommodating the swing head (302) is provided with a swing head seat (7); the swing head (302) has a convex spherical portion (3021) protruding toward the other end of the driving shaft (301) along one end connected to the swing head (302) along the driving shaft (301); correspondingly, the swing head seat (7) has a first insertion hole (701) for the driving shaft (301) to pass through, and a concave spherical portion (702) matching the convex spherical portion (3021); an opening formed on the concave spherical portion (702) on the swing head seat (7) is formed as the first opening (104).

5. The swing head mechanism of the swing mill according to claim 1, characterized in that: A face seat (8) is installed on the portion of the accommodating cavity (101) used for accommodating the drive shaft (301); a face cover (9) is provided on the face seat (8); and the face cover (9) is connected to the drive shaft (301); a first arcuate face portion (801) is provided at a contact point between the face seat (8) and the face cover (9); correspondingly, a second arcuate face portion (901) matching the first arcuate face portion (801) is provided at a contact point between the face cover (9) and the face seat (8).

6. The swing head mechanism of the swing mill according to claim 1, characterized in that: It comprises a main driving assembly (12) for driving the eccentric sleeve (201) to rotate; The eccentric assembly (2) comprises a first drive connecting member (202) for connecting the eccentric sleeve (201) and the main drive assembly (12); the main drive assembly (12) comprises a second drive connecting member (1201) matched with the first drive connecting member (202).

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