Die assembly structure for ring rolling machine

Abstract

The utility model provides a die assembly structure for a ring rolling machine. The die assembly structure comprises a bearing assembly, a first limiting assembly, a first driving piece and a second driving piece. The bearing assembly comprises a base and a rotating shaft, the first limiting assembly comprises a support and a first limiting roller, the first limiting roller is vertically arranged and can rotate around a vertical shaft, the first driving part is used for driving the rotating shaft to reciprocate in the axial direction, and the second driving part is used for driving the rotating shaft to rotate in the circumferential direction. When the device is used, the second driving piece is used for adjusting the support to be in a deflection state, after the ring piece is installed, the support is adjusted to be in an upright state, the first driving piece is used for adjusting the axial position of the support, the first limiting roller is made to make contact with the lowest portion of the end face of the ring piece in an attached mode, and therefore the ring piece is axially limited. The first limiting roller can axially limit the lower part of the ring piece, so that the risk of bending deformation of the ring piece is eliminated; meanwhile, the first limiting roller is located below the core roller all the time, and therefore mutual interference between the first limiting roller and the main rolling roller is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ring rolling machines, in particular to a mold clamping structure for ring rolling machines. Background Art

[0002] The vertical ring rolling machine is a kind of equipment used for processing ring forgings. Its working principle is to roll and expand the ring through the cooperation of the main rolling roller and the core roller. When working, the ring is sleeved on the core roller, and the main rolling roller rotates and moves downward. When the main rolling roller contacts the ring, it presses the ring downward while driving the ring to rotate. At the same time, the two holding rollers on both sides of the ring abut against the outer side of the ring, thereby realizing the rolling process of thinning the ring thickness and expanding the diameter.

[0003] In the actual production process, when the ring is pressed down by the main rolling roller, it will extend in the circumferential direction (radial direction) and in the front and rear end directions (axial direction) of the ring body, so that the thickness of the blank gradually becomes thinner. The radial extension of the ring can be limited by the contact between the holding roller set on one side and the outer wall of the ring, so that the ring forms a regular circular ring shape; the I-shaped groove on the main rolling roller can limit the axial extension of the blank, so that the front and rear end faces of the blank form regular end faces. However, when the blank is rolled at the beginning, the thickness of the blank is relatively thick, and the I-shaped groove on the main rolling roller can only limit the outer edge of the blank. In order to ensure that the blank does not extend beyond the range limited by the I-shaped groove of the main rolling roller, the prior art will design a clamping structure for the ring rolling machine to assist in limiting the axial extension of the blank. In addition, as the rolling proceeds, the diameter of the ring gradually increases. Since the blank itself is heavy and its texture is soft under high temperature conditions, there is a risk of bending and deformation. Therefore, for rings with high precision requirements, deformation issues also need to be considered.

[0004] Chinese patent document CN206747481U discloses a rolling machine, including a frame, a core roller is rotatably connected to the frame, one end of the core roller extends out of the frame, a limiter is sleeved on the end of the core roller extending out of the frame, the limiter is provided with an annular groove for accommodating an annular blank, and a limit ring for limiting the slippage and shaking of the limiter is detachably fixedly connected to the end of the core roller extending out of the frame. The above technical scheme limits the ring axially by the limiter, so that the extension of the ring in the axial direction can be limited to a certain extent. In the above technical scheme, the limiter can only assist in limiting the axial extension of the top position of the ring, and when the thickness of the blank gradually decreases, there is also the problem of interference between the limiter and the main rolling roller; the scheme also cannot solve the potential bending deformation problem of the blank.

[0005] Therefore, how to provide a clamping structure for a ring rolling machine that will not interfere with the main rolling roller and can assist in limiting the axial extension of the blank throughout the entire process is a technical problem that has not yet been solved in the prior art. Utility Model Content

[0006] Therefore, the technical problem to be solved by the utility model is to overcome the technical defect that the limit piece in the prior art can only provide auxiliary limit to the axial extension of the top position of the ring, but cannot provide axial limit to the bottom of the ring, thereby causing the ring to bend and deform; and when the thickness of the blank gradually decreases, the distance between the limit piece and the main rolling roller gradually approaches, which easily leads to mutual interference, thereby providing a mold structure for a ring rolling machine that can provide axial limit to the bottom of the ring.

[0007] To this end, the utility model provides a clamping structure for a ring rolling machine, comprising:

[0008] A supporting assembly, comprising a base and a rotating shaft rotatably mounted on the base, wherein the rotating shaft can reciprocate in an axial direction;

[0009] A first limiting assembly comprises a bracket and a first limiting roller installed on one side of the bracket, the bracket is fixedly installed on the rotating shaft, and the first limiting roller is vertically arranged and can rotate around a vertical axis;

[0010] A first driving member, the output end of which is drivingly connected to one end of the rotating shaft, and is used to drive the rotating shaft to reciprocate in the axial direction;

[0011] The second driving member has an output end which is transmission-connected to the rotating shaft through a transmission assembly, and is used to drive the rotating shaft to rotate in a circumferential direction.

[0012] Furthermore, the base comprises:

[0013] A first base, provided with a first mounting hole suitable for inserting the rotating shaft, the first base being located on the same side as the first limiting roller;

[0014] The second base is provided with a second mounting hole suitable for inserting the rotating shaft, and the second base is located at the opposite side of the first limiting roller.

[0015] Furthermore, it also includes:

[0016] A first rotating shaft sleeve, fixedly arranged inside the first mounting hole, the interior of which is used for movably mounting the rotating shaft, and one end of the first rotating shaft sleeve away from the second base is fixedly connected to the first base;

[0017] The second rotating shaft sleeve is fixedly arranged on the inner side of the second mounting hole, and the interior thereof is used for movably mounting the rotating shaft. One end of the second rotating shaft sleeve away from the first base is fixedly connected to the second base.

[0018] Furthermore, the transmission assembly comprises:

[0019] a gear ring, which is sleeved on the outside of the rotating shaft and is rotatably mounted on the end of the second rotating shaft sleeve facing the first base through a connecting structure; a limiting structure is provided between the gear ring and the rotating shaft, and the limiting structure is used to prevent the gear ring from rotating relative to the rotating shaft, but can allow the rotating shaft to move axially in the gear ring;

[0020] The rack is located below the gear ring and meshed with the gear ring; one end of the rack is connected to the output end of the second driving member, and can drive the gear ring to rotate under the drive of the second driving member.

[0021] Furthermore, the connection structure comprises:

[0022] A mounting portion formed on one end of the second rotating shaft sleeve facing the first base and protruding from the second mounting hole by a certain length, and an annular groove is formed on the outer peripheral surface of the mounting portion;

[0023] A snap ring, capable of being partially embedded in the snap groove;

[0024] A plurality of connecting through holes distributed along the circumference of the gear ring;

[0025] A chuck is rotatably sleeved on the mounting portion and is located between the clasp and the second base, and the chuck is provided with a plurality of threaded holes opposite to the connecting through holes;

[0026] A connecting bolt passes through the connecting through hole and is screwed to the threaded hole to fix the gear ring to the chuck.

[0027] Furthermore, the limiting structure includes:

[0028] A groove is formed on the outer wall of the rotating shaft and extends along the length direction of the rotating shaft;

[0029] The convex teeth are formed on the inner wall of the gear ring and can be installed into the groove to slide with the groove.

[0030] Furthermore, it also includes:

[0031] There are three mounting through holes, which are arranged on the bracket in sequence along the vertical direction and are respectively arranged parallel to the rotating shaft;

[0032] There are two guide sleeves, which are fixedly installed in the uppermost and lowermost two installation through holes respectively;

[0033] Mounting bracket, comprising a mounting structure and two guide rods arranged on one side of the mounting structure; the mounting structure is used for mounting the first limiting roller; the two guide rods are arranged vertically opposite to each other and can be respectively movably mounted in two of the guide sleeves;

[0034] The third driving member is fixedly mounted on the side of the bracket away from the first limiting roller, and the output shaft can pass through the middle mounting through hole and be in transmission connection with the mounting bracket for driving the mounting bracket to move reciprocally.

[0035] Further, the mounting structure includes:

[0036] Connecting plate, arranged vertically, with one side fixedly connected to the two guide rods;

[0037] Support plates, there are two, arranged vertically opposite to each other, and are respectively mounted at the upper end and the lower end of the other side of the connecting plate; mounting holes are oppositely formed on the two support plates;

[0038] Mounting shaft, used for mounting the first limiting roller, and both ends of the mounting shaft are detachably mounted in the two mounting holes respectively;

[0039] Bearings, there are two, arranged between the mounting shaft and the first limiting roller, and are respectively located at both ends of the first limiting roller.

[0040] Further, a positioning structure is further included, and the positioning structure includes:

[0041] Positioning hole, formed on the bracket, above the uppermost mounting through hole, and arranged parallel to the mounting through hole;

[0042] Positioning sleeve, mounted in the positioning hole, suitable for the free end of the core roller to be inserted from one side;

[0043] When the free end of the core roller is inserted into the positioning sleeve, the first limiting roller is in close contact with the lowermost end face of the ring member mounted on the core roller.

[0044] The technical solution provided by the present utility model has the following advantages:

[0045] The utility model discloses a clamping structure for a ring rolling machine, comprising a supporting assembly, a first limiting assembly, a first driving member and a second driving member; the supporting assembly comprises a base and a rotating shaft rotatably mounted on the base, and the rotating shaft can reciprocate in an axial direction; the first limiting assembly comprises a bracket and a first limiting roller mounted on one side of the bracket, the bracket is fixedly mounted on the rotating shaft, and the first limiting roller is vertically arranged and can rotate around a vertical axis; the output end of the first driving member is transmission-connected with one end of the rotating shaft for driving the rotating shaft to reciprocate in an axial direction; the output end of the second driving member is transmission-connected with the rotating shaft through a transmission assembly for driving the rotating shaft to rotate in a circumferential direction.

[0046] The clamping structure for the ring rolling machine of the utility model, when in use, first uses the second driving member to adjust the bracket to a deflected state tilted to one side, and after the ring is installed on the core roller, the second driving member is used to adjust the bracket to an upright state, and the first driving member is used to move the bracket toward the direction close to the ring, so that the first limiting roller is in contact with the bottom of the end surface of the ring to axially limit the ring. The first limiting roller can axially limit the part of the ring located below the core roller, thereby eliminating the risk of bending and deformation of the ring; at the same time, the first limiting roller is always located below the core roller and will not interfere with the main rolling roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the prior art or the specific implementation methods of the present utility model, the drawings used in the description of the prior art or the specific implementation methods are briefly introduced below.

[0048] Figure 1 The utility model is a schematic diagram of the overall structure of the mold clamping structure used for the ring rolling machine.

[0049] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure.

[0050] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0051] Figure 4 Yes Figure 1 Schematic diagram of the clamping structure in the ring rolling machine with the bracket in an upright position.

[0052] Figure 5 Yes Figure 1 Schematic diagram of the clamping structure in a ring rolling machine with the bracket in a deflected state.

[0053] Reference numerals: 11, supporting assembly; 111, first base; 112, second base; 1211, mounting through hole; 1212, positioning hole; 113, rotating shaft; 1131, groove; 114, first mounting hole; 115, second mounting hole; 116, first rotating shaft sleeve; 117, second rotating shaft sleeve; 1171, mounting portion; 1172, card slot; 12, first limiting assembly; 121, bracket; 122, first limiting roller; 1221, bearing; 123, guide sleeve; 124, mounting frame; 1241, guide rod; 1242, connecting plate; 1243, support plate; 1244, mounting shaft; 125, driving member; 126, positioning sleeve; 13, first driving member; 14, second driving member; 15, transmission assembly; 151, snap ring; 152, gear ring; 1521, connecting through hole; 1522, convex tooth; 153, rack; 154, chuck; 1541, threaded hole; 156, connecting bolt; 16, second limiting assembly; 161, second limiting roller mounting frame; 162, second limiting roller; 32, core roller; 900, ring part. Detailed implementation manners

[0054] In order to enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the protection scope of the present application.

[0055] It should be noted that the terms "first", "second", etc. in the claims and the description of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to those steps or units clearly listed, but may also include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0056] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to specific circumstances. Additionally, the meaning of the term "plurality" should be two or more. It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0057] The following will describe this application in detail with reference to the drawings and in combination with embodiments.

[0058] This embodiment provides a die closing structure for a ring rolling mill, as Figures 1-5 shown, which includes a supporting component 11, a first limiting component 12, a first driving member 13 and a second driving member 14; the supporting component 11 includes a base and a rotating shaft 113 rotatably installed on the base, and the rotating shaft 113 can reciprocate along the axial direction; the first limiting component 12 includes a bracket 121 and a first limiting roller 122 installed on one side of the bracket 121, the bracket 121 is fixedly installed on the rotating shaft 113, the first limiting roller 122 is vertically arranged and can rotate around the vertical axis; the output end of the first driving member 13 is in transmission connection with one end of the rotating shaft 113 for driving the rotating shaft 113 to reciprocate along the axial direction; the output end of the second driving member 14 is in transmission connection with the rotating shaft 113 through a transmission component 15 for driving the rotating shaft 113 to rotate circumferentially.

[0059] For the die closing structure for a ring rolling mill in this embodiment, the first driving member 13 can drive the rotating shaft 113 to drive the first limiting component 12 to reciprocate along the axial direction, and thus can conveniently and quickly adjust the distance between the first limiting roller 122 and the ring 900 installed on the core roller 32, so that the die closing structure of this embodiment can be applicable to limit rings with different axial widths. The second driving member 14 can drive the rotating shaft 113 to rotate circumferentially through the transmission component 15, and then drive the bracket 121 to swing around the rotating shaft 113, so that the bracket 121 can be conveniently and quickly adjusted to the upright state (as Figure 4 shown) or adjusted to the deflected state (as Figure 5As shown in the figure, when the bracket 121 is in the upright state, axial limit can be applied to the ring part 900. When the bracket 121 is in the deflected state, space can be vacated for picking up and placing the ring part 900 or performing other operations.

[0060] For the die closing structure of the ring rolling mill in this embodiment, during use, first, the second driving member 14 is used to adjust the bracket 121 to the deflected state of tilting to one side. After the ring part 900 is installed on the core roll 32, the second driving member 14 is used to adjust the bracket 121 to the upright state. The first driving member 13 is used to move the bracket 121 in the direction close to the ring part 900, so that the first limiting roller 122 is in close contact with the lowermost part of the end face of the ring part 900 to apply axial limit to the ring part 900. In this embodiment, the first limiting roller 122 can apply axial limit to the part of the ring part 900 located below the core roll 32, thereby eliminating the risk of bending deformation of the ring part. At the same time, the first limiting roller 122 is always located below the core roll 32, so that it will not interfere with the main rolling roller.

[0061] For the die closing structure of the ring rolling mill in this embodiment, further, the base includes a first base 111 and a second base 112. The first base 111 is provided with a first mounting hole 114 suitable for inserting the rotating shaft 113, and the first base 111 is located on the same side of the first limiting roller 122. The second base 112 is provided with a second mounting hole 115 suitable for inserting the rotating shaft 113, and the second base 112 is located on the opposite side of the first limiting roller 122.

[0062] For the die closing structure of the ring rolling mill in this embodiment, further, it further includes a first rotating shaft sleeve 116 and a second rotating shaft sleeve 117. The first rotating shaft sleeve 116 is fixedly arranged inside the first mounting hole 114 and is used for the rotating shaft 113 to be movably installed inside. One end of the first rotating shaft sleeve 116 away from the second base 112 is fixedly connected to the first base 111. The second rotating shaft sleeve 117 is fixedly arranged inside the second mounting hole 115 and is used for the rotating shaft 113 to be movably installed inside. One end of the second rotating shaft sleeve 117 away from the first base 111 is fixedly connected to the second base 112.

[0063] The clamping structure for the ring rolling machine of this embodiment, the transmission assembly 15 includes a ring gear 152 and a rack 153; the ring gear 152 is sleeved on the outside of the rotating shaft 113, and is rotatably installed on the end of the second rotating shaft sleeve 117 facing the first base 111 through a connecting structure; a limiting structure is provided between the ring gear 152 and the rotating shaft 113, and the limiting structure is used to prevent the ring gear 152 from rotating relative to the rotating shaft 113, but can allow the rotating shaft 113 to move axially in the ring gear 152; the rack 153 is located below the ring gear 152 and is meshed with the ring gear 152; one end of the rack 153 is connected to the output end of the second driving member 14, and can drive the ring gear 152 to rotate under the drive of the second driving member 14.

[0064] The clamping structure for the ring rolling machine of this embodiment further comprises a mounting portion 1171, a snap ring 151, a connecting through hole 1521, a chuck 154 and a connecting bolt 156; the mounting portion 1171 is formed on the end of the second rotating shaft sleeve 117 facing the first base 111 and protrudes from the second mounting hole 115 by a certain length, and an annular groove 1172 is formed on the outer peripheral surface of the mounting portion 1171; the snap ring 151 can be partially embedded in the groove 1171. 172; there are multiple connecting through holes 1521 distributed along the circumference of the gear ring 152; the chuck 154 is rotatably mounted on the mounting portion 1171 and is located between the retaining ring 151 and the second base 112, and the chuck 154 is provided with multiple threaded holes 1541 opposite to the connecting through holes 1521; the connecting bolts 156 pass through the connecting through holes 1521 and are screwed into the threaded holes 1541 to fix the gear ring 152 to the chuck 154.

[0065] In this embodiment, the chuck 154 is rotatably mounted on the mounting portion 1171, and the retaining ring 151 and the second base 112 respectively limit the chuck 154 axially from both sides, so that the chuck 154 and the gear ring 152 fixedly connected thereto cannot move in the axial direction, but can rotate freely in the circumferential direction relative to the second rotating shaft sleeve 117.

[0066] The clamping structure for the ring rolling machine of this embodiment, further, the limiting structure includes a groove 1131 and a convex tooth 1522; the groove 1131 is opened on the outer wall of the rotating shaft 113 and extends along the length direction of the rotating shaft 113; the convex tooth 1522 is formed on the inner wall of the gear ring 152, and can be installed into the groove 1131 and slideably cooperate with the groove 1131.

[0067] In this embodiment, the groove 1131 extends along the length direction of the rotating shaft 113. The convex tooth 1522 can be installed into the groove 1131 and is in sliding fit with the groove 1131 in the axial direction. However, the convex tooth 1522 and the groove 1131 are limited to each other in the circumferential direction, so that the gear ring 152 can move axially relative to the rotating shaft 113 but cannot rotate relative to the rotating shaft 113.

[0068] In this embodiment, when the first driving member 13 drives the rotating shaft 113 to move axially, the groove 1131 and the convex tooth 1522 are in sliding fit, so that the rotating shaft 113 can move axially freely relative to the gear ring 152. When the second driving member 14 drives the rack 153 to move back and forth, the rack 153 can drive the gear ring 152 engaged therewith to rotate, and then the convex tooth 1522 formed on the inner wall of the gear ring 152 rotates synchronously. The convex tooth 1522 and the groove 1131 are limited to each other in the circumferential direction, and then the rotating shaft 113 is driven to rotate.

[0069] The die closing structure for a ring rolling mill in this embodiment further includes an installation through hole 1211, a guide sleeve 123, an installation frame 124, and a third driving member 125. There are three installation through holes 1211, which are arranged in sequence along the vertical direction on the bracket 121 and are respectively arranged in parallel with the rotating shaft 113. There are two guide sleeves 123, which are respectively fixedly installed inside the two installation through holes 1211 at the uppermost and lowermost positions. The installation frame 124 includes an installation structure and two guide rods 1241 arranged on one side of the installation structure. The installation structure is used to install the first limiting roller 122. The two guide rods 1241 are arranged opposite to each other up and down and can be respectively movably installed in the two guide sleeves 123. The third driving member 125 is fixedly installed on the side of the bracket 121 away from the first limiting roller 122, and the output shaft can pass through the middle installation through hole 1211 to be in transmission connection with the installation frame 124, and is used to drive the installation frame 124 to move reciprocally.

[0070] In this embodiment, the third driving member 125 can drive the installation frame 124 to move reciprocally, and the cooperation between the guide sleeve 123 and the guide rod 1241 can ensure that the installation frame 124 always remains horizontal during the movement process.

[0071] The die closing structure for a ring rolling mill in this embodiment. Further, the mounting structure includes a connecting plate 1242 and a supporting plate 1243; the connecting plate 1242 is vertically arranged, and one side is fixedly connected to the two guiding rods 1241; there are two supporting plates 1243, which are arranged up and down opposite to each other, and are respectively mounted on the upper end and the lower end of the other side of the connecting plate 1242; mounting holes are oppositely formed on the two supporting plates 1243; a mounting shaft 1244 is used for mounting the first limiting roller 122, and both ends of the mounting shaft 1244 are detachably mounted in the two mounting holes; there are two bearings 1221, which are arranged between the mounting shaft 1244 and the first limiting roller 122 and are respectively located at both ends of the first limiting roller 122.

[0072] The die closing structure for a ring rolling mill in this embodiment further includes a second limiting component 16. The second limiting component 16 includes a second limiting roller mounting frame 161 and a second limiting roller 162; there are two second limiting roller mounting frames 161, which are arranged up and down and are fixedly mounted on one side of the ring rolling mill facing the bracket 121; the second limiting roller 162 is vertically mounted between the two second limiting roller mounting frames 161 and can rotate around a vertical axis; the first limiting roller 122 and the second limiting roller 162 are opposite to each other left and right and are adapted to respectively rotate and fit on the end faces on both sides of the ring part 900.

[0073] In this embodiment, the second limiting roller mounting frame 161 can be mounted on the ring rolling mill, so that the installation space can be saved and the equipment can be made more compact. When the die closing structure of this embodiment is in use, the first limiting roller 122 and the second limiting roller 162 are opposite to each other left and right and can respectively rotate and fit on the end faces on both sides of the ring part 900, so that the ring part 900 can be axially limited from both sides at the same time, thereby further eliminating the risk of bending deformation of the ring part.

[0074] The die closing structure for a ring rolling mill in this embodiment. Further, it also includes a positioning structure. The positioning structure includes a positioning hole 1212 and a positioning sleeve 126; the positioning hole 1212 is formed in the bracket 121, above the uppermost installation through hole 1211 and is arranged parallel to the installation through hole 1211; the positioning sleeve 126 is mounted in the positioning hole 1212 and is adapted for the free end of the core roll 32 to be inserted from one side; when the free end of the core roll 32 is inserted into the positioning sleeve 126, the first limiting roller 122 is in close contact with the lowermost end face of the ring part 900 mounted on the core roll.

[0075] In this embodiment, the first limiting roller 122 is vertically arranged and can rotate around the vertical axis. The first limiting roller 122 is in close contact with the lowermost end face of the ring part 900, so that it can be ensured that the moving directions of the first limiting roller 122 and the ring part 900 at the contact position are the same, thereby improving the processing accuracy. At the same time, the positioning sleeve 126 and the core roller 32 cooperate with each other to quickly position the first limiting component 12, thereby improving the processing efficiency.

[0076] The working process of the die closing structure for the ring rolling mill in this embodiment is as follows:

[0077] The first driving member 13 drives the rotating shaft 113 to move away from the ring rolling mill, so that the bracket 121 is away from the ring rolling mill; the second driving member 14 drives the rotating shaft 113 to rotate, so that the bracket 121 tilts to one side to a deflected state; the ring part 900 is installed on the core roller 32, and one end face of the ring part 900 is in close contact with the second limiting roller 162;

[0078] The second driving member 14 drives the rotating shaft 113 to rotate, so that the bracket 121 returns to the upright state; the first driving member 13 drives the rotating shaft 113 to move towards the ring rolling mill, so that the free end of the core roller 32 is inserted into the positioning sleeve 126, and the first limiting roller 122 is in close contact with the other end face of the ring part 900;

[0079] When the processing of the ring part 900 is completed, the first driving member 13 drives the rotating shaft 113 to move away from the ring rolling mill, so that the bracket 121 is away from the ring rolling mill; the second driving member 14 drives the rotating shaft 113 to rotate, so that the bracket 121 tilts to one side to a deflected state; then the processed ring part 900 is removed, and at the same time a new ring part 900 is installed on the core roller 32 and the above process is repeated.

[0080] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A mold clamping structure for a ring rolling machine, characterized in that: include: A supporting assembly (11) comprising a base and a rotating shaft (113) rotatably mounted on the base, wherein the rotating shaft (113) is capable of reciprocating in an axial direction; A first limiting assembly (12), comprising a bracket (121) and a first limiting roller (122) mounted on one side of the bracket (121), wherein the bracket (121) is fixedly mounted on the rotating shaft (113), and the first limiting roller (122) is vertically arranged and can rotate around a vertical axis; A first driving member (13), the output end of which is drivingly connected to one end of the rotating shaft (113), and is used to drive the rotating shaft (113) to reciprocate in an axial direction; The second driving member (14) has an output end which is transmission-connected to the rotating shaft (113) via a transmission assembly (15) and is used to drive the rotating shaft (113) to rotate in a circumferential direction.

2. The mold clamping structure for a ring rolling machine according to claim 1, characterized in that: The base comprises: A first base (111) is provided with a first mounting hole (114) suitable for inserting the rotating shaft (113), and the first base (111) is located on the same side as the first limiting roller (122); The second base (112) is provided with a second mounting hole (115) suitable for inserting the rotating shaft (113), and the second base (112) is located on the opposite side of the first limiting roller (122).

3. The mold clamping structure for a ring rolling machine according to claim 2, characterized in that: Also includes: A first rotating shaft sleeve (116) is fixedly arranged inside the first mounting hole (114), and the interior is used for movably mounting the rotating shaft (113); an end of the first rotating shaft sleeve (116) away from the second base (112) is fixedly connected to the first base (111); The second rotating shaft sleeve (117) is fixedly arranged inside the second mounting hole (115), and the interior is used for movably mounting the rotating shaft (113). One end of the second rotating shaft sleeve (117) away from the first base (111) is fixedly connected to the second base (112).

4. The mold clamping structure for a ring rolling machine according to claim 3, characterized in that: The transmission assembly (15) comprises: a gear ring (152) sleeved on the outside of the rotating shaft (113) and rotatably mounted on one end of the second rotating shaft sleeve (117) facing the first base (111) via a connecting structure; a limiting structure is provided between the gear ring (152) and the rotating shaft (113), the limiting structure being used to prevent the gear ring (152) from rotating relative to the rotating shaft (113), but allowing the rotating shaft (113) to move axially within the gear ring (152); A rack (153) is located below the gear ring (152) and meshingly connected with the gear ring (152); one end of the rack (153) is connected to the output end of the second driving member (14), and can drive the gear ring (152) to rotate under the drive of the second driving member (14).

5. The mold clamping structure for a ring rolling machine according to claim 4, characterized in that: The connection structure comprises: A mounting portion (1171) is formed on one end of the second rotating shaft sleeve (117) facing the first base (111) and protrudes from the second mounting hole (115) by a certain length, and an annular groove (1172) is formed on the outer peripheral surface of the mounting portion (1171); A snap ring (151) capable of being partially embedded in the snap groove (1172); There are a plurality of connecting through holes (1521) distributed along the circumference of the gear ring (152); a chuck (154) rotatably sleeved on the mounting portion (1171) and located between the clasp (151) and the second base (112); the chuck (154) is provided with a plurality of threaded holes (1541) opposite to the connecting through holes (1521); A connecting bolt (156) passes through the connecting through hole (1521) and is threadedly connected to the threaded hole (1541), thereby fixedly connecting the gear ring (152) and the chuck (154).

6. The mold clamping structure for a ring rolling machine according to claim 4, characterized in that: The limiting structure comprises: A groove (1131) is formed on the outer wall of the rotating shaft (113) and extends along the length direction of the rotating shaft (113); The convex teeth (1522) are formed on the inner wall of the gear ring (152) and can be installed into the groove (1131) to slide in cooperation with the groove (1131).

7. The mold clamping structure for a ring rolling machine according to claim 1, characterized in that: Also includes: There are three mounting through holes (1211), which are arranged on the bracket (121) in sequence along the vertical direction and are respectively arranged parallel to the rotating shaft (113); There are two guide sleeves (123), which are respectively fixedly mounted inside the uppermost and lowermost two mounting through holes (1211); The mounting frame (124) comprises a mounting structure and two guide rods (1241) arranged on one side of the mounting structure; the mounting structure is used to mount the first limiting roller (122); the two guide rods (1241) are arranged opposite to each other up and down, and can be movably mounted in the two guide sleeves (123) respectively; The third driving member (125) is fixedly mounted on a side of the bracket (121) away from the first limiting roller (122), and the output shaft can pass through the middle mounting through hole (1211) to be transmission-connected with the mounting frame (124), so as to drive the mounting frame (124) to reciprocate.

8. The mold clamping structure for a ring rolling machine according to claim 7, characterized in that: The mounting structure comprises: A connecting plate (1242) is arranged vertically, and one side of the connecting plate is fixedly connected to the two guide rods (1241); There are two support plates (1243), which are opposite to each other in upper and lower directions and are respectively mounted on the upper end and the lower end of the other side of the connecting plate (1242); mounting holes are provided opposite to each other on the two support plates (1243); An installation shaft (1244) used for installing the first limiting roller (122), wherein both ends of the installation shaft (1244) are detachably installed in the two installation holes respectively; There are two bearings (1221), which are arranged between the mounting shaft (1244) and the first limiting roller (122), and are respectively located at two ends of the first limiting roller (122).

9. The mold clamping structure for a ring rolling machine according to claim 8, characterized in that: Also included is a positioning structure, the positioning structure comprising: A positioning hole (1212) is provided on the bracket (121), is located above the uppermost mounting through hole (1211), and is arranged parallel to the mounting through hole (1211); A positioning sleeve (126) is installed in the positioning hole (1212) and is suitable for the free end of the core roller (32) to be inserted from one side; When the free end of the core roller (32) is inserted into the positioning sleeve (126), the first limiting roller (122) is in close contact with the bottom of the end surface of the ring member (900) mounted on the core roller (32).

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