Gear hobbing machine center frame

Abstract

The utility model discloses a gear hobbing machine center frame, and belongs to the technical field of gear hobbing machines. In order to solve the problems that in the adjusting and using process of a center frame mechanism of an existing product, operation is troublesome, and the service life of an adjusted structure of the center frame mechanism is limited, according to the technical scheme, the center frame mechanism comprises a main body column and the center frame mechanism used for limiting a workpiece, and a carrying piece and a driving piece are fixedly connected to the main body column; the driving piece is located above the carrying piece. According to the utility model, through the cooperation of the carrying piece, the sleeve and the driving piece, the displacement of the center frame mechanism is adjusted in a rotary adjustment mode, the center frame mechanism is fixedly connected to the sleeve, the service life of the center frame mechanism is further guaranteed, and the adjusted center frame mechanism can be stably limited by the aid of the arrangement of the limiting assembly, so that the service life of the center frame mechanism is prolonged. The stability of a limited workpiece is prevented from being affected by shaking, the manual operation burden of adjustment of the center frame mechanism is small, the operation mode is convenient and fast, and the practical effect is high.

Description

Technical Field

[0001] This utility model relates to the field of gear hobbing machine technology, specifically a gear hobbing machine center frame. Background Technology

[0002] The gear hobbing machine is one of the most widely used machine tools in gear processing. It can cut spur gears, helical gears, worm gears, sprockets, etc.

[0003] A Chinese patent with authorization announcement number CN219093873U discloses a gear hobbing machine center frame, including a main column, a mounting ring fixedly mounted on the surface of the main column, a connector fixedly mounted on the right side surface of the mounting ring, a center frame mechanism for fixing workpieces of different shapes on the surface of the connector, and a folding mechanism for supporting or storing the center frame mechanism on the surface of the main column. This gear hobbing machine center frame solves the problem that existing gear hobbing machine center frames are generally fixedly mounted on the gear hobbing machine. During daily workpiece processing, some workpieces require the use of the gear hobbing machine center frame, while others do not. This leads to the gear hobbing machine center frame hindering the processing of some workpieces during operation, resulting in frequent disassembly and installation, which is time-consuming and labor-intensive. Furthermore, when the center frame is needed, it can only clamp workpieces of the same shape, limiting its application range.

[0004] Although the technical solutions in the aforementioned patent documents avoid frequent disassembly and assembly of the central frame and achieve adaptive clamping for different workpieces, in actual operation, the central frame mechanism relies solely on the long rod in the folding mechanism for support. The force on the long rod is relatively concentrated, making it extremely prone to damage and limiting the product's service life. Furthermore, the long rod achieves its support effect on the central frame mechanism by rotating the connecting ring along with the adjusting cylinder, resulting in a significant manual burden during operation.

[0005] Therefore, those skilled in the art have provided a gear hobbing machine center rest to solve the problems mentioned in the background art. Utility Model Content

[0006] To overcome the aforementioned deficiencies of the prior art, the present invention provides a gear hobbing machine center frame. Through the cooperation of a support component, a sleeve, and a drive component, the center frame mechanism can be adjusted by rotation. The center frame mechanism is fixedly connected to the sleeve, thus ensuring its service life. With the addition of a limiting component, the adjusted center frame mechanism can achieve stable positioning, avoiding shaking that would affect the stability of the workpiece it limits. Furthermore, the adjustment of the center frame mechanism requires less manual operation, is more convenient to operate, and has high practicality, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A gear hobbing machine center frame includes a main column and a center frame mechanism for limiting the workpiece. A support member and a driving member are fixedly connected to the main column. The driving member is located above the support member. A top ring sleeved on the main column is installed at the output end of the driving member. A sleeve is rotatably connected to the bottom of the top ring. The sleeve and the support member are slidably sleeved. A fixing frame for loading the center frame mechanism and a limiting component for locking and limiting are integrally provided on the sleeve.

[0009] The limiting assembly includes holes formed on both sides of the sleeve shell wall, with a limiting rod inserted into the hole. A driven wedge is fixedly connected to the outer end of the rod. An active wedge is provided on the inclined surface of the driven wedge and slides against it. An adjusting rod is fixedly connected to the top of the active wedge. A ring is movably connected to the top of multiple adjusting rods. An inner threaded ring is fixedly connected to the top of the ring. The inner threaded ring is threadedly connected to the outer wall of the sleeve.

[0010] As a further embodiment of this utility model, the support component is composed of a guide sleeve and a support ring, both of which are sleeved on the outer shell wall of the main column, wherein the support ring is located at the bottom end of the guide sleeve.

[0011] As a further embodiment of this utility model, the driving component includes a fixed sleeve that is fixedly connected to the main column by bolts. Cylinders for lifting and adjusting are installed on both the left and right sides of the fixed sleeve, and the output end of the cylinder is fixedly connected to the top ring.

[0012] As a further embodiment of this utility model, the top two sides of the fixing frame are integrally provided with support plates, and the support plates are provided with guide holes for guiding.

[0013] As a further embodiment of this utility model, the top end of the adjusting rod passes through the guide hole and is fixedly connected to a slider, and the bottom of the ring is provided with an annular groove, and the ends of the multiple sliders away from the adjusting rod are all slidably connected in the annular groove.

[0014] As a further embodiment of this utility model, each of the insert rods is fitted with a spring for reset adjustment, one end of the spring is fixedly connected to the side wall of the driven wedge, and the other end of the spring is fixedly connected to the outer side wall of the sleeve.

[0015] As a further embodiment of this utility model, limit holes are provided on both sides of the guide sleeve shell wall, and the insertion rod is inserted into the limit hole for limitation.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By cooperating with the support components, sleeve, and drive components, the displacement of the center frame mechanism can be adjusted by rotation. The center frame mechanism is fixedly connected to the sleeve, thus ensuring its service life. With the addition of limit components, the adjusted center frame mechanism can achieve stable positioning, avoiding shaking that would affect the stability of the workpiece it limits. Moreover, the adjustment of the center frame mechanism requires less manual operation, making it convenient to operate and highly practical. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a gear hobbing machine center frame;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure viewed from the side;

[0020] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A.

[0021] In the diagram: 1. Main column; 2. Support component; 21. Guide sleeve; 22. Support ring; 3. Sleeve; 4. Central frame mechanism; 5. Top ring; 6. Drive component; 61. Fixed sleeve; 62. Cylinder; 7. Limiting component; 71. Insert rod; 72. Driven wedge; 73. Active wedge; 74. Adjusting rod; 75. Inner ring. Detailed Implementation

[0022] Please see Figures 1 to 3 In this embodiment of the invention, a gear hobbing machine center frame includes a main column 1 and a center frame mechanism 4 for limiting the workpiece. A support member 2 and a driving member 6 are fixedly connected to the main column 1, with the driving member 6 located above the support member 2. A top ring 5, sleeved on the main column 1, is installed at the output end of the driving member 6. A sleeve 3 is rotatably connected to the bottom of the top ring 5, and the sleeve 3 is slidably sleeved with the support member 2. The rotatable connection between the sleeve 3 and the top ring 5 allows the sleeve 3 to rotate during adjustment of the center frame mechanism 4, ensuring flexible adjustment of the center frame mechanism 4. A fixed frame for mounting the center frame mechanism 4 and a limiting component 7 for clamping and limiting are integrally provided on the sleeve 3. The assembly of the center frame mechanism 4 on the fixed frame ensures the stability of the center frame mechanism 4 when clamping and limiting the workpiece, and extends its service life.

[0023] The limiting assembly 7 includes holes formed in the side walls of the sleeve 3, into which insert rods 71 ​​for limiting are inserted. A driven wedge 72 is fixedly connected to the outer end of the insert rod 71, and an active wedge 73 is provided on the inclined surface of the driven wedge 72 for sliding contact with it. An adjusting rod 74 is fixedly connected to the top of the active wedge 73, and a ring is movably connected to the top of multiple adjusting rods 74. An inner threaded ring 75 is fixedly connected to the top of the ring, and the inner threaded ring 75 is threadedly connected to the outer wall of the sleeve 3. A spring for reset adjustment is fitted on each insert rod 71, one end of the spring is fixedly connected to the side wall of the driven wedge 72, and the other end of the spring is fixedly connected to the outer side wall of the sleeve 3. When the limiting assembly 7 is adjusted, the inner threaded ring 75 is rotated, thereby causing multiple adjusting rods 74 to move during the rotational lifting adjustment of the inner threaded ring 75, causing the corresponding active wedge 73 to shift. When the active wedge 73 is raised or lowered, the corresponding driven wedge 72 is squeezed or released, thereby achieving the extension and retraction adjustment of the insertion rod 71 under the action of the spring, so as to realize the insertion limit or cancellation adjustment between the sleeve 3 and the support member 2.

[0024] The support component 2 consists of a guide sleeve 21 and a support ring 22, both of which are fitted onto the outer shell wall of the main column 1. The support ring 22 is located at the bottom end of the guide sleeve 21. Multiple guide grooves are formed along the circumferential direction on the outer shell wall of the guide sleeve 21, while multiple guide strips are integrally formed along the circumferential direction on the inner wall of the sleeve 3. The cooperation between the guide strips and the guide grooves enables the sleeve 3 to slide and fit onto the support component 2.

[0025] The driving component 6 includes a fixed sleeve 61 that is bolted to the main column 1. Cylinders 62 for lifting and adjusting are installed on both sides of the fixed sleeve 61, and the output end of each cylinder 62 is fixedly connected to the top ring 5. The dual-sided arrangement of the cylinders 62 ensures the stability of the lifting and lowering movement of the sleeve 3 during operation.

[0026] Both sides of the top of the fixed frame are integrally provided with support plates, and guide holes are opened on the support plates for guidance. The top end of the adjusting rod 74 passes through the guide hole and is fixedly connected to a slider. The bottom of the ring has an annular groove, and the ends of multiple sliders away from the adjusting rod 74 are slidably connected in the annular groove. The sliding connection of the adjusting rod 74 with the sliders in the annular groove ensures that when the inner ring 75 is rotated on the sleeve 3, it drives the adjusting rod 74 to rise and fall.

[0027] Limiting holes are provided on both sides of the guide sleeve 21, and the insertion rod 71 is inserted into the limiting hole for positioning.

[0028] The working principle of this utility model is as follows: When the central frame mechanism 4 needs to be adjusted, the limiting component 7 on it is first adjusted to remove the limiting effect between the sleeve 3 and the support member 2. Then, the cylinder 62 in the drive component 6 is activated, causing the top ring 5 to move the sleeve 3 upward. After the sleeve 3 disengages from the support member 2, the drive component 6 stops running. Then, the sleeve 3, which carries the central frame mechanism 4, is rotated 180 degrees clockwise or counterclockwise to adjust the displacement of the central frame mechanism 4 on the sleeve 3. After the adjustment is completed, the drive component 6 resets, causing the sleeve 3 to move downward and slide into contact with the support member 2. Then, the limiting component 7 is adjusted to lock the sleeve 3 and the support member 2.

[0029] When the central frame mechanism 4 is not needed, the limiting component 7 is first adjusted to cancel the limiting effect. Then, under the action of the driving component 6, the sleeve 3 is moved upward to separate it from the support component 2 and rotated for adjustment. Then, the driving component 6 moves the sleeve downward. Finally, the limiting component 7 completes the limiting lock between the sleeve 3 and the adjusting component 2 to complete the adjustment operation of the central frame mechanism 4.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A center frame of a gear hobbing machine, comprising a main column (1) and a center frame mechanism (4) for limiting the position of a workpiece, characterized in that: The main body column (1) is fixedly connected with a supporting member (2) and a driving member (6), wherein the driving member (6) is located above the supporting member (2), and a top ring (5) sleeved on the main body column (1) is installed at the output end of the driving member (6), and a sleeve (3) is rotatably connected to the bottom of the top ring (5), and the sleeve (3) and the supporting member (2) are slidably sleeved, and a fixing frame for loading a center frame mechanism (4) and a limit assembly (7) for clamping and limiting are integrally arranged on the sleeve (3); The limiting assembly (7) comprises holes formed on the shell walls on both sides of the sleeve (3), a plug rod (71) for limiting is inserted into the hole, the outer end of the plug rod (71) is fixedly connected to a driven wedge (72), the inclined surface of the driven wedge (72) is provided with an active wedge (73) in sliding contact with the driven wedge, the top of the active wedge (73) is fixedly connected to an adjusting rod (74), the tops of the plurality of adjusting rods (74) are movably connected to a circular ring, the top of the circular ring is fixedly connected to an inner grooved ring (75), and the inner grooved ring (75) is threadedly connected to the outer wall of the sleeve (3).

2. The center frame of a gear hobbing machine according to claim 1, characterized in that: The supporting member (2) is composed of a guide sleeve (21) and a supporting ring (22), and the guide sleeve (21) and the supporting ring (22) are both sleeved on the outer ring shell wall of the main column (1), wherein the supporting ring (22) is located at the bottom end of the guide sleeve (21).

3. The center frame of a gear hobbing machine according to claim 1, characterized in that: The driving member (6) comprises a fixing sleeve (61) fixedly connected to the main column (1) by bolts, and cylinders (62) for lifting and lowering adjustment are installed on both left and right sides of the fixing sleeve (61), and the output end of the cylinder (62) is fixedly connected to the top ring (5).

4. The center frame of a gear hobbing machine according to claim 1, characterized in that: Support plates are integrally arranged on both sides of the top of the fixing frame, and guide holes for guiding are opened on the support plates.

5. The gear hobbing machine center frame according to claim 4, characterized in that: The top end of the adjusting rod (74) passes through the guide hole and is fixedly connected to a slider. The bottom of the circular ring is provided with an annular groove, and the ends of the plurality of sliders away from the adjusting rod (74) are all slidably connected to the annular groove.

6. The center frame of a gear hobbing machine according to claim 1, characterized in that: Each of the insert rods (71) is sleeved with a spring for resetting and adjusting, one end of the spring is fixedly connected to the side wall of the driven wedge block (72), and the other end of the spring is fixedly connected to the side outer wall of the sleeve (3).

7. The center frame of a gear hobbing machine according to claim 2, characterized in that: Limiting holes are provided on both side walls of the guide sleeve (21), and the inserting rod (71) is inserted into the limiting holes for limiting positioning.

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