Center frame switching device for gear hobbing machine

Abstract

The utility model relates to the technical field of gear hobbing machines, in particular to a center frame switching device for a gear hobbing machine, which comprises a fixed seat, the fixed seat is fixedly sleeved on the outer side of a rotating sleeve, one end of the fixed seat is provided with two connecting grooves, the two connecting grooves are used for installing and inserting inserting blocks, and the rotating sleeve is sleeved on the outer side of the rotating sleeve. The two inserting blocks are arranged at one end of the connecting base, sliding strips are arranged at the bottom end of the connecting base, the number of the sliding strips is two, guide grooves are formed in the top end face of the fixing base, the number of the guide grooves is two, and the two guide grooves are used for allowing the two sliding strips to be installed in a sliding mode. The end, away from the inserting block, of the connecting base is hinged to one end of the center frame body. Through the design that the fixed seat is matched with the guide groove and the sliding strip of the connecting seat, rapid and accurate mechanical positioning is achieved, the connecting seat and the fixed seat form rigid connection in cooperation with a vertical locking structure of the first bolt, and the center frame body can be rapidly disassembled and assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hobbing machine technical field, specifically related to a center rest switching device for hobbing machine. BACKGROUND

[0002] The hobbing machine is the most widely used machine tool in gear machining machine tool, and straight tooth, helical tooth cylindrical gear can be cut on the hobbing machine, and worm wheel, chain wheel and the like can also be processed. The hobbing machine is used for processing straight tooth, helical tooth and herringbone tooth cylindrical gear and worm wheel according to the generation method. This machine tool can also process various special tooth-shaped workpieces such as splines and chain wheels when using special hobbing tools. The machining precision of the ordinary hobbing machine is 7-6 level (JB179-83), and the machining precision of the high-precision hobbing machine is 4-3 level, and the maximum machining diameter reaches 15 meters.

[0003] In the application number: CN202021066886.7, a kind of hobbing machine capable of stable switching center rest is disclosed, the utility model is rotated by driving motor rotation driving gear, rotating gear drives rotation sleeve rotation, with the rotation sleeve fixed connection of fixed plate rotation, can be rotated when not using center rest of hobbing machine, to facilitate switching center rest, avoid affecting the machining of other workpieces when not using.

[0004] But the center rest of the device is fixedly connected to the outside of the rotating sleeve, which is not only inconvenient for disassembling and replacing the center rest, but also placed in a horizontal state at ordinary times, which may interfere with the operation of employees, so that the machining workpiece is not convenient, therefore a kind of center rest switching device for hobbing machine is proposed. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model provides a kind of center rest switching device for hobbing machine.

[0006] The utility model solves the technical scheme that the technical scheme that the utility model solves its technical problem is a kind of center rest switching device for hobbing machine, including fixed seat, the fixed seat is fixedly connected to the outside of rotating sleeve, one end of the fixed seat is equipped with connecting groove, the connecting groove is equipped with two, two the connecting groove is used for the installation of plug-in block insertion, two the plug-in block is all equipped in the one end of connecting seat, the bottom of connecting seat is equipped with slide strip, the slide strip is equipped with two, the top end surface of fixed seat is equipped with guide slot, the guide slot is equipped with two, two the guide slot is used for the sliding installation of two The slide strip, the one end of connecting seat away from plug-in block is hinged with the one end of center rest body.

[0007] By adopting the technical scheme, the quick and accurate mechanical positioning is realized through the cooperation of the guide groove of the connecting seat and the sliding strip, the preliminary alignment is completed by only pushing the sliding strip along the guide groove and automatically inserting the block into the connecting groove during installation, the assembly steps are greatly simplified, the connecting seat and the fixed seat are rigidly connected through the vertical locking structure of the first bolt, and the center frame body can be quickly disassembled and installed.

[0008] The plug-in plate sliding block linkage mechanism and the hinge are combined to design, and the device has flexible space adaptability. The plug-in plate can be controlled to extend or retract through the horizontal sliding block. The unique folding storage mechanism turns over the center frame body after the plug-in plate is disconnected, and forms a self-supporting structure by extending the plug-in plate. This design not only maintains the bearing strength of the traditional center frame body, but also realizes the space utilization rate of the folding furniture, so that the operation of the staff is not affected during the non-use of the center frame body.

[0009] Specifically, the plug-in plate is movably inserted into the end of the connecting seat away from the block, the top end of the plug-in plate is fixedly connected with a sliding block, the sliding block is slidingly installed in the inside of a sliding groove, and the sliding groove is formed in the top end face of the connecting seat.

[0010] By adopting the technical scheme, the plug-in plate can be extended or retracted from the inside of the connecting seat by manually pushing the sliding block to slide horizontally along the sliding groove. When the plug-in plate is extended, the front end thereof can be inserted into the insertion groove of the center frame body to provide support for subsequent fixation. When the plug-in plate is retracted, the center frame body is conveniently folded and stored.

[0011] Specifically, the first bolt is installed above the connecting groove at the top end of the fixed seat, and is used for fixedly connecting the fixed seat and the block.

[0012] By adopting the technical scheme, when the block is completely inserted into the connecting groove, the first bolt needs to be vertically screwed into the top end of the fixed seat, penetrates the fixed seat and is screwed into the threaded hole at the top end of the block, so as to lock the connecting seat and the fixed seat, prevent the sliding strip from being pulled out of the guide groove, and ensure the stability of the overall structure.

[0013] Specifically, the insertion groove is formed in one end of the center frame body close to the connecting seat for inserting and mounting the plug-in plate, and the second bolt is installed at the top end of the center frame body and is used for fixedly connecting the center frame body and the plug-in plate.

[0014] By adopting the technical scheme, when the plug-in plate is inserted into the insertion groove of the center frame body, the second bolt needs to be screwed from the top end of the center frame body, so that it penetrates the insertion groove and is tightly screwed into the reserved threaded hole of the plug-in plate, thereby fixing the center frame body and the connecting seat, ensuring that the center frame body maintains a horizontal working state, and avoiding shaking or tilting during use.

[0015] Specific, the connecting seat away from the center frame body end opening with an arc slot, the inner side of the arc slot and the outer side of the rotating sleeve fit.

[0016] The utility model discloses the beneficial effect:

[0017] (1) a kind of center frame switching device for gear hobbing machine described in the utility model, by the guiding slot of fixed seat and connecting seat, slide strip cooperation design, it realizes the quick accurate mechanical positioning, only need to push into along guiding slot when installing, and insert block can be automatically embedded in connecting groove to complete preliminary alignment, greatly simplifies assembly step, the vertical locking structure of cooperation first bolt, so that connecting seat and fixed seat form rigid connection, can quickly dismount and install center frame body.

[0018] (2) a kind of center frame switching device for gear hobbing machine described in the utility model, adopt plug-in plate sliding block linkage mechanism and hinge combination design, give equipment flexible space adaptability. By horizontal sliding block, plug-in plate telescoping can be controlled, the unique folding storage mechanism is turned over center frame body by releasing plug-in plate connection, uses extended plug-in plate to form self-supporting structure, this design not only maintains the bearing strength of traditional center frame body, but also realizes the space utilization of similar folding furniture, to ensure that center frame body does not hinder the operation of staff during not using. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further illustrated below in connection with the drawings and embodiment.

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the fixed seat structure schematic diagram of the utility model;

[0022] Figure 3 It is the connecting seat structure schematic diagram of the utility model;

[0023] Figure 4 It is the center frame body structure schematic diagram of the utility model;

[0024] In the drawing: 1, fixed seat;2, first bolt;3, connecting seat;4, rotating sleeve;5, sliding slot;6, sliding block;7, second bolt;8, center frame body;9, connecting groove;10, guiding slot;11, plug-in plate;12, slide strip;13, insert block;14, arc slot. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in connection with specific embodiment.

[0026] As an embodiment of the utility model, as shown in the figure, Figures 1-4 The utility model discloses a center rest switching device for gear hobbing machine, including fixed seat 1, fixed seat 1 is fixedly sleeved in the outside of rotating sleeve 4, one end of fixed seat 1 is equipped with connecting groove 9, connecting groove 9 is equipped with two, two connecting groove 9 are used for the installation of the plug -in block 13, two plug -in blocks 13 all are located in one end of connecting seat 3, and the bottom of connecting seat 3 is equipped with slide strip 12, and the slide strip 12 is equipped with two, and the top end surface of fixed seat 1 is equipped with guide groove 10, and the guide groove 10 is equipped with two, and two guide grooves 10 are used for the sliding installation of two slide strips 12, and one end of connecting seat 3 away from plug -in block 13 is hingedly connected with one end of center rest body 8.

[0027] In use, the two slide strips 12 at the bottom of the connecting seat 3 are inserted into the two guide grooves 10 on the fixed seat 1, and are slid along the guide grooves 10 until the plug-in blocks 13 are completely inserted into the connecting grooves 9, at which time the arc-shaped grooves 14 of the connecting seat 3 are tightly fitted with the outside of the rotating sleeve 4, and preliminary positioning is completed. Then, the first bolts 2 are used to fix the connecting seat 3 and the fixed seat 1, to ensure that they are stably connected.

[0028] The utility model further includes that one end inside away from plug -in block 13 of connecting seat 3 is movably inserted with the plug -in board 11, the top end of plug -in board 11 is fixedly connected with sliding block 6, sliding block 6 is slidably installed in the inside of sliding slot 5, and sliding slot 5 is equipped on the top end surface of connecting seat 3.

[0029] In use, the plug-in board 11 can be extended from or retracted into the connecting seat 3 by manually pushing the sliding block 6 to slide along the sliding slot 5, and when the plug-in board 11 is extended, the front end thereof can be inserted into the insertion slot of the center rest body 8 to provide support for subsequent fixing; when the plug-in board 11 is retracted, the center rest body 8 is conveniently stored and folded.

[0030] The utility model further includes that the first bolts 2 are installed above the connecting grooves 9 at the top end of the fixed seat 1, and the first bolts 2 are used to fixedly connect the fixed seat 1 and the plug-in blocks 13.

[0031] In use, after the plug-in blocks 13 are completely inserted into the connecting grooves 9, the first bolts 2 are vertically screwed into the fixed seat 1 from the top end thereof, penetrate the fixed seat 1 and are screwed into the threaded holes at the top end of the plug-in blocks 13, so as to lock the connecting seat 3 and the fixed seat 1, prevent the slide strips 12 from being pulled out of the guide grooves 10, and ensure the stability of the overall structure.

[0032] The utility model further includes that the center rest body 8 is provided with an insertion slot at one end close to the connecting seat 3 for the plug-in board 11 to be inserted thereinto, and the second bolts 7 are installed at the top end of the center rest body 8 for fixedly connecting the center rest body 8 and the plug-in board 11.

[0033] In use, when the plug plate 11 is inserted into the slot (not shown in the figure) of the center frame body 8, the second bolt 7 is screwed from the top end of the center frame body 8, penetrates the slot and is screwed into the reserved screw hole of the plug plate 11, thereby fixing the center frame body 8 and the connecting seat 3, ensuring that the center frame body 8 remains in a horizontal working state and avoiding shaking or tilting during use.

[0034] It should be noted that the slot is located in the middle of the left end of the center frame body and is aligned with the front end of the plug plate.

[0035] The utility model discloses still include, the connecting seat 3 is away from the one end of center frame body 8 is equipped with the arc slot 14, the inner side of arc slot 14 and the outside of rotating sleeve 4 are pasted.

[0036] In use, when the plug plate 11 is inserted into the slot (not shown in the figure) of the center frame body 8, the second bolt 7 is screwed from the top end of the center frame body 8, penetrates the slot and is screwed into the reserved screw hole of the plug plate 11, thereby fixing the center frame body 8 and the connecting seat 3, ensuring that the center frame body 8 remains in a horizontal working state and avoiding shaking or tilting during use. Figure 4 When the center frame body 8 is not needed, the second bolt 7 can be unscrewed, and the sliding block 6 can be pushed away from the center frame body 8, so that the plug plate 11 can be pulled out of the center frame body 8. Through the hinge connection between the center frame body 8 and the connecting seat 3, the center frame body 8 can be turned up by 90 degrees, so that the center frame body 8 is placed vertically (as shown in the figure). Then, the plug plate 11 is pushed out of the connecting seat 3 by the sliding block 6, so that the plug plate 11 provides upward support for the center frame body 8, avoiding the center frame body 8 from turning over due to gravity. In this way, the center frame body 8 can be stored, avoiding hindering the operation of employees.

[0037] The basic principles, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model, and these changes and improvements fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A headstock changeover device for a gear hobbing machine, comprising a fixed seat (1), characterized in that, The fixed seat (1) is sleeved on the outside of the rotating sleeve (4), one end of the fixed seat (1) is provided with a connecting groove (9), the connecting groove (9) is provided with two, the two connecting grooves (9) are used for inserting the inserting block (13), the two inserting blocks (13) are arranged at one end of the connecting seat (3), the bottom end of the connecting seat (3) is provided with a sliding strip (12), the sliding strip (12) is provided with two, the top end surface of the fixed seat (1) is provided with a guide groove (10), the guide groove (10) is provided with two, the two guide grooves (10) are used for slidingly installing the two sliding strips (12), and one end of the connecting seat (3) away from the inserting block (13) is hingedly connected with one end of the center frame body (8).

2. A head changer for a gear hobbing machine according to claim 1, characterized in that The connecting seat (3) is internally movably inserted with an inserting plate (11) away from the inserting block (13), the top end of the inserting plate (11) is fixedly connected with a sliding block (6), the sliding block (6) is slidably installed in the sliding groove (5), and the sliding groove (5) is arranged on the top end surface of the connecting seat (3).

3. A head changer for a gear hobbing machine according to claim 1, characterized in that The top end of the fixed seat (1) is provided with a first bolt (2) above the connecting groove (9), and the first bolt (2) is used for fixedly connecting the fixed seat (1) and the inserting block (13).

4. A head changer for a gear hobbing machine according to claim 1, characterized in that The top end of the connecting seat (3) is provided with a first bolt (2) above the connecting groove (9), and the first bolt (2) is used for fixedly connecting the fixed seat (1) and the inserting block (13).

5. A head changer for a gear hobbing machine according to claim 1, wherein The top end of the connecting seat (3) is provided with a first bolt (2) above the connecting groove (9), and the first bolt (2) is used for fixedly connecting the fixed seat (1) and the inserting block (13). The end of the connecting seat (3) away from the center frame body (8) is provided with an arc-shaped groove (14), and the inner side of the arc-shaped groove (14) is matched with the outer side of the rotating sleeve (4).

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