Positioning and clamping assembly on hot mill

Abstract

The utility model provides a positioning and clamping assembly on a hot rolling mill, which relates to the technical field of hot rolling mills and comprises a workpiece lower side lifting fixed table, a workpiece lower side lifting fixed table and a workpiece lower side lifting fixed table, the workpiece upper side clamping and rotating driving mechanism is used for expanding and clamping the inner ring surface of the workpiece; the number of the lifting type pulley wire outlet groove hot rolling mechanisms is two, and the two lifting type pulley wire outlet groove hot rolling mechanisms are symmetrically distributed based on the lifting fixing table on the lower side of the workpiece. According to the device, the inner ring face of a pulley blank is clamped in an expansion mode through the workpiece upper side clamping and rotating driving mechanism, the clamped pulley blank is supported and positioned in an auxiliary mode through the workpiece lower side lifting fixing table, it is guaranteed that a workpiece rotates smoothly, and displacement of the workpiece is avoided; the two symmetrically-arranged lifting type pulley wire outlet groove hot rolling mechanisms are used for synchronously carrying out hot rolling on a pulley blank, it is guaranteed that a workpiece is evenly stressed, and dislocation of a workpiece groove channel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot rolling mills, in particular to a positioning clamping component on a hot rolling mill. Background Art

[0002] The hot-rolled pulley is manufactured using a special process to roll out rope grooves on round medium-thick steel plates. The pulley rolled using hot rolling technology has the advantages of light weight, easy installation, wear resistance, and can extend the life of the pulley and wire rope, meeting the principles of energy saving and economy.

[0003] The positioning and clamping device in the existing pulley groove hot rolling mill has certain shortcomings: the installation stability of the workpiece is relatively general, and when rolling after heating, the workpiece is prone to displacement and uneven force, resulting in misalignment of the workpiece groove. Utility Model Content

[0004] The utility model aims to provide a positioning and clamping assembly on a hot rolling mill, which expands and clamps the inner annular surface of a pulley blank through a clamping and rotating driving mechanism on the upper side of the workpiece, and uses a lifting and fixing platform on the lower side of the workpiece to auxiliary support and position the clamped pulley blank, and ensures smooth rotation of the workpiece to avoid displacement of the workpiece; the pulley blank is hot-rolled synchronously through two symmetrically arranged lifting and lowering pulley outlet groove hot rolling mechanisms to ensure uniform force on the workpiece and avoid misalignment of the workpiece groove.

[0005] The utility model provides a positioning clamping assembly on a hot rolling mill, comprising:

[0006] A lifting and fixing platform at the lower side of the workpiece, which slides and fits with the bottom surface of the workpiece;

[0007] The upper side of the workpiece is clamped and rotated to drive the mechanism, which performs expansion clamping on the inner annular surface of the workpiece;

[0008] There are two lifting pulley outlet groove hot rolling mechanisms, and the two lifting pulley outlet groove hot rolling mechanisms are symmetrically distributed based on the lifting fixed platform at the lower side of the workpiece;

[0009] The lifting pulley outlet groove hot rolling mechanism on both sides performs synchronous hot rolling on the workpiece in the middle.

[0010] As a further optimization scheme, in order to stably support the lower end of the workpiece and ensure smooth rotation of the workpiece, the lifting and fixing platform at the lower side of the workpiece includes:

[0011] The first electric linear actuator;

[0012] The middle part of the bottom surface of the fixed plate is fixedly connected to the telescopic upper end of the first electric push rod, and the upper surface of the fixed plate is evenly and movably connected with balls in concentric circles, and the upper end of the balls is slidably fitted with the bottom surface of the workpiece.

[0013] As a further optimization scheme, in order to expand and clamp the inner annular surface of the pulley blank and maintain stable clamping, the workpiece upper side clamping and rotating driving mechanism includes:

[0014] Drive motor;

[0015] The upper end of the round rod is fixedly connected to the lower end of the rotating shaft of the driving motor through a coupling;

[0016] Connecting flange;

[0017] A positioning plate, which is fixedly connected to the lower end of the round rod through a connecting flange;

[0018] The cylinder is fixedly assembled in the middle of the bottom surface of the positioning plate. The outer wall of the cylinder is fixedly assembled with a first cylinder at the front, back, left and right. The telescopic end of the first cylinder is fixedly assembled with a clamping plate, and the clamping plate rests on the inner ring surface of the workpiece.

[0019] As a further optimization scheme, in order to facilitate the adjustment of the hot rolling height of the outlet groove and to facilitate the use of pulley blanks with different thicknesses, the lifting pulley outlet groove hot rolling mechanism includes:

[0020] A second electric push rod is longitudinally distributed;

[0021] A second cylinder is laterally fixedly mounted on the telescopic upper end of the second electric push rod, and the telescopic end of the second cylinder faces the workpiece;

[0022] The hot-rolled piece of the outlet groove is fixedly assembled on the telescopic end of the second cylinder.

[0023] As a further optimization scheme, in order to form a wire outlet groove by hot rolling in the middle of the outer wall of the pulley blank, the wire outlet groove hot rolled piece includes:

[0024] A U-shaped frame, with its open end facing the workpiece, the U-shaped frame being fixedly connected to the telescopic end of the second cylinder;

[0025] A connecting shaft, which is longitudinally rotatably assembled in the U-shaped frame;

[0026] The hot rolling wheel is fixedly sleeved on the middle part of the connecting shaft, and a U-shaped frame opening is extended from one end of the hot rolling wheel close to the workpiece.

[0027] As a further optimization scheme, in order to facilitate the operation of the device, it also includes:

[0028] An operating table, on which the lower end of the lifting fixed table at the lower side of the workpiece and the lower end of the lifting pulley outlet groove hot rolling mechanism are fixedly assembled;

[0029] The L-shaped plate, the longitudinal portion of which is fixedly mounted on the rear side of the upper surface of the operating table;

[0030] The upper end of the workpiece upper side clamping and rotating driving mechanism is fixedly assembled on the transverse part of the L-shaped plate.

[0031] As a further optimization solution, in order to improve the mechanical strength of the L-shaped plate, reinforcing ribs are fixedly connected on the left and right sides between the longitudinal portion and the transverse portion of the L-shaped plate.

[0032] As a further optimization scheme, in order to facilitate the collection of waste generated by processing, a slag discharge structure is installed at the front end of the upper surface of the operating table, and the slag discharge structure includes:

[0033] A strip-shaped through hole is transversely opened on the front side of the upper surface of the operating table;

[0034] A baffle plate is fixedly mounted on the upper surface of the operating table at the front edge of the strip-shaped through hole;

[0035] The cloth bag is pasted and fixed on the bottom surface of the operating table, and the opening end of the cloth bag is connected with the strip-shaped through hole.

[0036] As a further optimization solution, in order to prevent waste materials generated during processing from falling off the operating table, a retaining edge is fixedly mounted on the edge of the upper surface of the operating table.

[0037] As a further optimization solution, in order to blow the waste generated by processing forward and discharge it, the lower end of the longitudinal part of the L-shaped plate is evenly and horizontally provided with installation holes, and an exhaust fan is fixedly installed in the installation hole, and the wind direction of the exhaust fan is toward the front.

[0038] The utility model provides a positioning clamping assembly for a hot rolling mill through improvement, which has the following improvements and advantages compared with the prior art:

[0039] Firstly, the device expands and clamps the inner annular surface of the pulley blank through the clamping and rotating driving mechanism on the upper side of the workpiece, and uses the lifting and fixing platform on the lower side of the workpiece to assist in supporting and positioning the clamped pulley blank, and ensures smooth rotation of the workpiece to avoid displacement of the workpiece; the pulley blank is hot-rolled synchronously through two symmetrically arranged lifting and pulling pulley outlet groove hot rolling mechanisms to ensure uniform force on the workpiece and avoid misalignment of the workpiece groove.

[0040] Secondly, the exhaust fan, ribs and slag discharge structure are used together to remove and collect the waste generated by processing, ensuring the cleanliness of the processing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a schematic diagram of the structure of the utility model;

[0043] Figure 2 This is a schematic diagram of the structure of the workpiece upper side clamping and rotating driving mechanism of the utility model;

[0044] Figure 3 This is a schematic diagram of the first cylinder assembly structure of the utility model;

[0045] Figure 4 It is a schematic structural diagram of the lifting pulley wire outlet trough hot rolling mechanism of the utility model.

[0046] Description of reference numerals:

[0047] 1-lifting and fixing platform at the lower side of the workpiece, 11-first electric push rod, 12-fixed plate, 13-ball, 2-clamping and rotating driving mechanism at the upper side of the workpiece, 21-driving motor, 22-round rod, 23-connecting flange, 24-positioning plate, 25-cylinder, 26-first cylinder, 3-lifting pulley wire outlet slot hot rolling mechanism, 31-second electric push rod, 32-second cylinder, 33-wire outlet slot hot rolled piece, 331-U-shaped frame, 332-connecting shaft, 333-hot rolling wheel, 4-operating table, 5-L-shaped plate, 6-slag discharge structure, 61-strip through hole, 62-baffle, 63-cloth bag, 7-rib, 8-exhaust fan. DETAILED DESCRIPTION

[0048] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0050] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] See also Figure 1-4 The utility model provides a technical solution: a positioning and clamping assembly on a hot rolling mill, comprising:

[0052] A lifting and fixing platform 1 is provided under the workpiece, and is slidably fitted with the bottom surface of the workpiece;

[0053] The upper side of the workpiece is clamped and rotated by a drive mechanism 2, which performs expansion clamping on the inner annular surface of the workpiece;

[0054] There are two lifting pulley outlet trough hot rolling mechanisms 3, and the two lifting pulley outlet trough hot rolling mechanisms 3 are symmetrically distributed based on the lifting fixed platform 1 at the lower side of the workpiece;

[0055] The lifting pulley outlet trough hot rolling mechanism 3 on both sides performs synchronous hot rolling on the workpiece in the middle.

[0056] The device expands and clamps the inner annular surface of the pulley blank through the clamping and rotating driving mechanism 2 on the upper side of the workpiece, and uses the lifting and fixing platform 1 on the lower side of the workpiece to auxiliary support and position the clamped pulley blank, and ensure smooth rotation of the workpiece to avoid displacement of the workpiece; the pulley blank is hot-rolled synchronously through two symmetrically arranged lifting and pulling pulley outlet groove hot rolling mechanisms 3 to ensure uniform force on the workpiece and avoid misalignment of the workpiece groove.

[0057] In some embodiments, in order to stably support the lower end of the workpiece and ensure smooth rotation of the workpiece, the lower lifting and fixing platform 1 of the workpiece includes:

[0058] A first electric push rod 11;

[0059] The middle part of the bottom surface of the fixed plate 12 is fixedly connected to the telescopic upper end of the first electric push rod 11, and the upper surface of the fixed plate 12 is evenly and movably engaged with balls 13 in concentric circles, and the upper ends of the balls 13 are slidably fitted with the bottom surface of the workpiece; the first electric push rod 11 is connected to an external power supply, and when it is extended, it drives the fixed plate 12 to rise until the balls 13 movably engaged with the upper end of the fixed plate 12 are fitted with the pulley blank. The freely rotatable balls 13 improve the smoothness of the rotation of the pulley blank and can provide stable support for the pulley blank.

[0060] In some embodiments, in order to expand and clamp the inner annular surface of the pulley blank and maintain stable clamping, the workpiece upper side clamping and rotating driving mechanism 2 includes:

[0061] Driving motor 21;

[0062] The round rod 22 has its upper end fixedly connected to the lower end of the rotating shaft of the driving motor 21 through a coupling;

[0063] Connecting flange 23;

[0064] A positioning plate 24, which is fixedly connected to the lower end of the round rod 22 via a connecting flange 23;

[0065] The cylinder 25 is fixedly assembled in the middle part of the bottom surface of the positioning plate 24. The outer wall of the cylinder 25 is fixedly assembled with the first cylinder 26 in the front, back, left and right. The telescopic end of the first cylinder 26 is fixedly assembled with a clamping plate, and the clamping plate is against the inner annular surface of the workpiece; the first cylinder 26 is connected to the external air supply system, and the four first cylinders 26 work synchronously, which can perform coaxial inner annular surface expansion clamping on the pulley blank. The outer diameter of the clamped pulley blank is larger than the size of the positioning plate 24 and the fixing plate 12, which is convenient for hot rolling of the wire outlet groove. The size of the positioning plate 24 and the fixing plate 12 can be set according to demand to meet the hot rolling requirements of the wire outlet groove of pulley blanks of different sizes.

[0066] In some embodiments, in order to facilitate the adjustment of the hot rolling height of the wire outlet groove and facilitate the use of pulley blanks with different thicknesses, the lifting pulley wire outlet groove hot rolling mechanism 3 includes:

[0067] A second electric push rod 31, which is distributed longitudinally;

[0068] A second cylinder 32 is transversely fixedly mounted on the telescopic upper end of the second electric push rod 31, and the telescopic end of the second cylinder 32 faces the workpiece;

[0069] The hot-rolled piece 33 of the wire outlet groove is fixedly assembled on the telescopic end of the second cylinder 32; the second electric push rod 31 is connected to an external power supply, which can drive the second cylinder 32 and the hot-rolled piece 33 of the wire outlet groove to rise and fall, and adjust the hot pressing height; the second cylinder 32 is connected to the external air supply system, and the connected pipeline has a movable margin. The second cylinder 32 extends to drive the hot-rolled piece 33 of the wire outlet groove to move, and cooperates with the rotating pulley blank to carry out hot rolling of the wire outlet groove.

[0070] In some embodiments, in order to form a wire groove by hot rolling in the middle of the outer wall of the pulley blank, the wire groove hot-rolled piece 33 includes:

[0071] A U-shaped frame 331, whose open end faces the workpiece, and the U-shaped frame 331 is fixedly connected to the telescopic end of the second cylinder 32;

[0072] A connecting shaft 332 is longitudinally rotatably mounted in the U-shaped frame 331;

[0073] The hot rolling wheel 333 is fixedly sleeved on the middle part of the connecting shaft 332 , and one end of the hot rolling wheel 333 close to the workpiece extends out of the opening of the U-shaped frame 331 .

[0074] In some embodiments, in order to facilitate the operation of the device, the device further includes:

[0075] The operating table 4, the lower end of the lifting fixed table 1 on the lower side of the workpiece and the lifting pulley outlet groove hot rolling mechanism 3 are all fixedly assembled on the operating table 4;

[0076] An L-shaped plate 5, the longitudinal portion of which is fixedly mounted on the rear side of the upper surface of the operating table 4;

[0077] The upper end of the workpiece upper side clamping and rotating driving mechanism 2 is fixedly mounted on the lateral portion of the L-shaped plate 5 .

[0078] In some embodiments, in order to improve the mechanical strength of the L-shaped plate 5 , reinforcing ribs are fixedly connected on the left and right sides between the longitudinal portion and the transverse portion of the L-shaped plate 5 .

[0079] In some embodiments, in order to facilitate the collection of waste generated by processing, a slag discharge structure 6 is installed at the front end of the upper surface of the operating table 4, and the slag discharge structure 6 includes:

[0080] A strip-shaped through hole 61 is transversely opened on the front side of the upper surface of the operating table 4;

[0081] The baffle 62 is fixedly mounted on the upper surface of the operating table 4 at the front edge of the strip-shaped through hole 61;

[0082] The cloth bag 63 is pasted and fixed on the bottom surface of the operating table 4, and the open end of the cloth bag 63 is connected to the strip-shaped through hole 61; the waste generated by the processing is blocked by the baffle 62, and is introduced into the cloth bag 63 from the strip-shaped through hole 61 for collection. The cloth bag 63 can be disassembled and cleaned.

[0083] In some embodiments, in order to prevent waste materials generated during processing from falling off the operating table 4 , a retaining edge 7 is fixedly mounted on the edge of the upper surface of the operating table 4 .

[0084] In some embodiments, in order to blow the waste generated by processing forward for discharge, the lower end of the longitudinal part of the L-shaped plate 5 is evenly and horizontally provided with installation holes, and an exhaust fan 8 is fixedly installed in the installation hole. The wind direction of the exhaust fan 8 is toward the front, and the exhaust fan 8 is connected to an external power supply after being connected in parallel.

[0085] Working principle:

[0086] The first cylinder 26 is connected to the external air supply system, and the four first cylinders 26 work synchronously, so as to expand and clamp the inner annular surface of the pulley blank coaxially; the first electric push rod 11 is connected to the external power supply, and when it is extended, it drives the fixed plate 12 to rise until the ball 13 movably connected to the upper end of the fixed plate 12 fits with the pulley blank, and the freely rotatable ball 13 improves the smoothness of the rotation of the pulley blank, and can stably support the pulley blank to avoid displacement of the workpiece; the pulley blank is hot-rolled synchronously by two symmetrically arranged lifting pulley outlet groove hot rolling mechanisms 3;

[0087] Turn on the exhaust fan 8 to blow the waste generated by the processing on the upper surface of the operating table 4 forward. The waste generated by the processing is blocked by the baffle 62 and introduced into the cloth bag 63 for collection through the strip through hole 61. The cloth bag 63 can be disassembled and cleaned. The retaining edge 7 is used to prevent the waste generated by the processing from falling from the operating table 4.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A positioning clamping assembly on a hot rolling mill, characterized in that: include: A lifting and fixing platform (1) under the workpiece, which is slidably fitted with the bottom surface of the workpiece; A clamping and rotating driving mechanism (2) on the upper side of the workpiece is used to perform expansion clamping on the inner annular surface of the workpiece; There are two lifting pulley wire outlet trough hot rolling mechanisms (3), and the two lifting pulley wire outlet trough hot rolling mechanisms (3) are symmetrically distributed based on the lifting fixed platform (1) at the lower side of the workpiece; The lifting pulley outlet groove hot rolling mechanism (3) on both sides performs synchronous hot rolling on the workpiece in the middle.

2. A positioning and clamping assembly for a hot rolling mill according to claim 1, characterized in that: The workpiece lower side lifting and fixing platform (1) comprises: A first electric push rod (11); The middle part of the bottom surface of the fixed plate (12) is fixedly connected to the telescopic upper end of the first electric push rod (11), and the upper surface of the fixed plate (12) is evenly and movably engaged with a ball (13) in a concentric circle, and the upper end of the ball (13) is slidably fitted with the bottom surface of the workpiece.

3. A positioning clamping assembly for a hot rolling mill according to claim 1, characterized in that: The workpiece upper side clamping and rotating driving mechanism (2) comprises: A driving motor (21); The round rod (22) has its upper end fixedly connected to the lower end of the rotating shaft of the driving motor (21) through a coupling; Connecting flange (23); A positioning plate (24) fixedly connected to the lower end of the round rod (22) via a connecting flange (23); The cylinder (25) is fixedly mounted on the middle part of the bottom surface of the positioning plate (24). The outer wall of the cylinder (25) is fixedly mounted with a first cylinder (26) at the front, back, left and right sides. The telescopic end of the first cylinder (26) is fixedly mounted with a clamping plate, and the clamping plate rests on the inner annular surface of the workpiece.

4. A positioning and clamping assembly for a hot rolling mill according to claim 1, characterized in that: The lifting pulley wire outlet trough hot rolling mechanism (3) comprises: A second electric push rod (31) is longitudinally distributed; A second cylinder (32) is transversely fixedly mounted on the telescopic upper end of the second electric push rod (31), and the telescopic end of the second cylinder (32) faces the workpiece; The outlet trough hot-rolled piece (33) is fixedly assembled on the telescopic end of the second cylinder (32).

5. A positioning and clamping assembly for a hot rolling mill according to claim 4, characterized in that: The outlet trough hot-rolled piece (33) comprises: A U-shaped frame (331) with its open end facing the workpiece, wherein the U-shaped frame (331) is fixedly connected to the telescopic end of the second cylinder (32); A connecting shaft (332) is longitudinally rotatably mounted in the U-shaped frame (331); The hot rolling wheel (333) is fixedly sleeved on the middle part of the connecting shaft (332), and the hot rolling wheel (333) extends out of the opening of the U-shaped frame (331) near one end of the workpiece.

6. A positioning and clamping assembly for a hot rolling mill according to claim 1, characterized in that: Also includes: An operating table (4), wherein the lower ends of the lifting and fixing table (1) on the lower side of the workpiece and the lifting and lowering pulley outlet groove hot rolling mechanism (3) are both fixedly assembled on the operating table (4); An L-shaped plate (5), the longitudinal portion of which is fixedly mounted on the rear side of the upper surface of the operating table (4); The upper end of the workpiece upper side clamping rotation driving mechanism (2) is fixedly mounted on the transverse portion of the L-shaped plate (5).

7. A positioning clamping assembly for a hot rolling mill according to claim 6, characterized in that: Reinforcing ribs are fixedly connected on the left and right sides of the position between the longitudinal portion and the transverse portion of the L-shaped plate (5).

8. A positioning clamping assembly for a hot rolling mill according to claim 6, characterized in that: The front end of the upper surface of the operating table (4) is equipped with a slag discharge structure (6), and the slag discharge structure (6) comprises: A strip-shaped through hole (61) is transversely opened on the front side of the upper surface of the operating table (4); A baffle (62) is fixedly mounted on the upper surface of the operating table (4) at the front edge of the strip-shaped through hole (61); The cloth bag (63) is glued and fixed on the bottom surface of the operating table (4), and the opening end of the cloth bag (63) is connected to the strip-shaped through hole (61).

9. A positioning clamping assembly for a hot rolling mill according to claim 6, characterized in that: A retaining edge (7) is fixedly mounted on the edge of the upper surface of the operating table (4).

10. A positioning clamping assembly for a hot rolling mill according to claim 6, characterized in that: The lower end of the longitudinal portion of the L-shaped plate (5) is uniformly and transversely provided with mounting holes, and an exhaust fan (8) is fixedly installed in the mounting hole, and the wind direction of the exhaust fan (8) is toward the front.

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