A quick-change gear hobbing fixture

Abstract

The utility model relates to the technical field of fixtures, specifically a quickly replaceable gear rolling fixture, including a support, a mounting plate fixedly connected to the lower surface of the support, a cushion block installed on the upper surface of the support, an axis core inserted inside the support, a positioning device arranged inside the support, the positioning device including a mounting cylinder, the mounting cylinder is fixedly connected to the inner wall of the support, a guide block is slidably connected to the inner wall of the mounting cylinder, a retaining ring is fixedly connected to one side of the guide block, a retaining groove is provided on the surface of the axis core, one end of the retaining ring is inserted into the retaining groove, a conduit is connected to the surface of the mounting cylinder, and a reset spring is fixedly connected to the inner wall of the mounting cylinder. The utility model simplifies the operating steps of the equipment and avoids the use of traditional bolt tightening methods, effectively reducing the possibility of the axis core loosening during processing, thereby improving the safety of equipment processing and facilitating the normal use of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a gear rolling clamp which can be quickly replaced. Background Art

[0002] Gear hobbing is the most important step in the gear machining process, and the gear hobbing fixture is the basis for connecting the workpiece and the machine tool and ensuring the machining accuracy during gear hobbing. Therefore, the fixture needs to be replaced every time the type of workpiece to be processed is changed.

[0003] The prior art includes a utility model with publication number CN204308335U, which discloses a quickly replaceable gear hobbing fixture, including a gear hobbing base fixed on a workbench by fixing screws, characterized in that a gear hobbing mandrel disk is fixed above the gear hobbing base by hexagon socket screws, a gear hobbing lower pad is arranged above the gear hobbing mandrel disk, and the gear hobbing mandrel is fixed to the gear hobbing base by the gear hobbing mandrel disk. The gear hobbing fixture of the utility model changes the "taper shank connection" of the prior art into a "cylindrical hole and end face positioning connection", achieving the purpose of directly replacing the gear hobbing mandrel, and has a simple structure, stable performance, extremely low cost, reduced labor intensity, and greatly improved replacement efficiency.

[0004] The inventor has found in his daily work that most of the current gear rolling fixtures often use bolts to perform processing operations when replacing the shaft core. Tools need to be used in this process, which is cumbersome to operate and prone to loose tightening. The shaft core is prone to loosening during processing, affecting the processing safety of the equipment and is not conducive to the normal use of the equipment. Improvements are needed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that most gear hobbing fixtures often use bolts to perform processing operations when replacing the shaft core, and tools need to be used in the process, the operation is cumbersome, and the shaft core is prone to being not properly tightened. During processing, the shaft core is prone to loosening, which affects the processing safety of the equipment and is not conducive to the normal use of the equipment. A gear hobbing fixture that can be quickly replaced is proposed to solve the problem.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quickly replaceable gear rolling fixture comprises a support, a mounting plate is fixedly connected to the lower surface of the support, a cushion block is installed on the upper surface of the support, an axis core is inserted into the interior of the support, a positioning device is arranged inside the support, the positioning device comprises a mounting cylinder, the mounting cylinder is fixedly connected to the inner wall of the support, a guide block is slidably connected to the inner wall of the mounting cylinder, a retaining ring is fixedly connected to one side of the guide block, a retaining groove is provided on the surface of the axis core, one end of the retaining ring is inserted into the retaining groove, and a conduit is connected to the surface of the mounting cylinder. This scheme simplifies the operating steps of the equipment and avoids the use of traditional bolt tightening methods, effectively reducing the possibility of the axis core loosening during processing, thereby improving the safety of equipment processing and facilitating the normal use of the equipment.

[0007] Preferably, a return spring is fixedly connected to the inner wall of the mounting tube, and one end of the return spring is fixedly connected to the surface of the guide block, so as to assist the guide block in resetting when the catheter is not ventilated.

[0008] Preferably, there are two clamping rings, which are symmetrically arranged to effectively fix the shaft core.

[0009] Preferably, a magnet is fixedly connected to one side of the two clamping rings that are close to each other, and the auxiliary clamping ring performs simple positioning.

[0010] Preferably, a bracket is fixedly connected to the inner wall of the support, a tray is fixedly connected to the surface of the bracket, and the shaft core is located above the tray.

[0011] Preferably, an auxiliary device is provided on the surface of the tray, and the auxiliary device is located directly below the shaft core. When replacing the shaft core, the shaft core is inserted into the support, and the shaft core is immediately against the push rod. The push rod is pushed down by force, and the push spring is deformed by force. Then the conduit is connected to the air pump, the air pump is ventilated, the guide block is pushed out, the reset spring is deformed by force, the guide block pushes the retaining ring to move, and then the retaining ring is inserted into the groove to complete the positioning of the shaft core. The two magnets are immediately adsorbed, and the processing operation can be carried out.

[0012] Preferably, the auxiliary device includes a push rod, which slides with the inner wall of the tray, the lower end of the push rod is fixedly connected to a positioning block, the upper surface of the positioning block is fixedly connected to a push spring, the push spring is sleeved on the push rod, and the end of the push spring away from the positioning block is fixedly connected to the surface of the tray. When taking out the shaft core, the air pump draws air, the guide block is then reset, the retaining ring is disengaged from the groove, and then the push spring drives the push rod to reset, the push rod pushes out the shaft core, and then the shaft core can be removed.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when replacing the shaft core, the shaft core is inserted into the support, and the shaft core is immediately against the push rod. The push rod is pushed down by force, and the push spring is deformed by force. Then the conduit is connected to the air pump, the air pump is ventilated, the guide block is pushed out, the reset spring is deformed by force, the guide block pushes the retaining ring to move, and then the retaining ring is inserted into the groove to complete the positioning of the shaft core. The two magnets are immediately adsorbed, and the processing operation can be carried out. When taking out the shaft core, the air pump is evacuated, the guide block is then reset, the retaining ring is separated from the groove, and then the push spring drives the push rod to reset, the push rod pushes the shaft core out, and then the shaft core can be removed. This solution simplifies the operating steps of the equipment and avoids the use of traditional bolt tightening methods, effectively reducing the loosening of the shaft core during processing, thereby improving the safety of equipment processing and facilitating the normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a gear hobbing fixture that can be quickly replaced is provided for the utility model;

[0016] Figure 2 The utility model provides a schematic diagram of the structure of a gear hobbing fixture that can be quickly replaced;

[0017] Figure 3 The utility model provides a structural schematic diagram of a positioning device in a gear hobbing fixture that can be quickly replaced;

[0018] Figure 4 The utility model provides a structural schematic diagram of an auxiliary device in a gear hobbing fixture that can be quickly replaced;

[0019] Figure 5 The utility model provides a structural schematic diagram of a central shaft core of a gear hobbing fixture that can be quickly replaced.

[0020] Legend:

[0021] 1. Support; 2. Mounting plate; 3. Spacer; 4. Axis core; 5. Positioning device; 51. Conduit; 52. Mounting tube; 53. Return spring; 54. Guide block; 55. Retaining ring; 56. Magnet; 57. Slot; 58. Bracket; 59. Tray; 6. Auxiliary device; 61. Positioning block; 62. Push spring; 63. Push rod. DETAILED DESCRIPTION

[0022] See also Figure 1-5The utility model provides a technical solution: a quickly replaceable gear rolling fixture, including a support 1, a mounting plate 2 is fixedly connected to the lower surface of the support 1, a cushion block 3 is installed on the upper surface of the support 1, an axis core 4 is inserted inside the support 1, a positioning device 5 is arranged inside the support 1, and the positioning device 5 includes a mounting cylinder 52, the mounting cylinder 52 is fixedly connected to the inner wall of the support 1, a guide block 54 is slidably connected to the inner wall of the mounting cylinder 52, a retaining ring 55 is fixedly connected to one side of the guide block 54, a retaining groove 57 is opened on the surface of the axis core 4, one end of the retaining ring 55 is inserted into the retaining groove 57, and a conduit 51 is connected to the surface of the mounting cylinder 52. This solution simplifies the operating steps of the equipment and avoids the use of traditional bolt tightening methods, effectively reducing the loosening of the axis core 4 during processing, thereby improving the safety of equipment processing and facilitating the normal use of the equipment.

[0023] In this embodiment, a return spring 53 is fixedly connected to the inner wall of the mounting tube 52 , and one end of the return spring 53 is fixedly connected to the surface of the guide block 54 , so as to assist the guide block 54 in returning to its original position when the conduit 51 is not ventilated.

[0024] Specifically, there are two clamping rings 55 , which are symmetrically arranged to effectively fix the shaft core 4 .

[0025] Specifically, a magnet 56 is fixedly connected to one side of the two clamping rings 55 that are close to each other, and the auxiliary clamping ring 55 performs simple positioning.

[0026] Specifically, a bracket 58 is fixedly connected to the inner wall of the support 1 , a tray 59 is fixedly connected to the surface of the bracket 58 , and the shaft core 4 is located above the tray 59 .

[0027] Specifically, an auxiliary device 6 is provided on the surface of the tray 59, and the auxiliary device 6 is located directly below the shaft core 4. When replacing the shaft core 4, the shaft core 4 is inserted into the support 1, and the shaft core 4 is immediately against the push rod 63. The push rod 63 is pushed down by force, and the push spring 62 is deformed by force. Then the conduit 51 is connected to the air pump, the air pump is ventilated, the guide block 54 is pushed out, the reset spring 53 is deformed by force, the guide block 54 pushes the retaining ring 55 to move, and then the retaining ring 55 is inserted into the groove 57 to complete the positioning of the shaft core 4. The two magnets 56 are immediately adsorbed, and the processing operation can be carried out.

[0028] In this embodiment: the auxiliary device 6 includes a push rod 63, the push rod 63 slides with the inner wall of the tray 59, the lower end of the push rod 63 is fixedly connected to the positioning block 61, the upper surface of the positioning block 61 is fixedly connected to the push spring 62, the push spring 62 is sleeved on the push rod 63, and the end of the push spring 62 away from the positioning block 61 is fixedly connected to the surface of the tray 59. When taking out the shaft core 4, the air pump draws air, the guide block 54 is then reset, the retaining ring 55 is disengaged from the retaining groove 57, and then the push spring 62 drives the push rod 63 to reset, the push rod 63 pushes out the shaft core 4, and then the shaft core 4 can be removed.

[0029] Working principle: when replacing the shaft core 4, insert the shaft core 4 into the support 1, and the shaft core 4 will then be against the push rod 63. The push rod 63 is pushed down by force, and the push spring 62 is deformed by force. Then the conduit 51 is connected to the air pump, the air pump is ventilated, the guide block 54 is pushed out, the reset spring 53 is deformed by force, the guide block 54 pushes the retaining ring 55 to move, and then the retaining ring 55 is inserted into the groove 57 to complete the positioning of the shaft core 4. The two magnets 56 are then adsorbed, and the processing operation can be carried out. When taking out the shaft core 4, the air pump is evacuated, the guide block 54 is then reset, and the retaining ring 55 is separated from the groove 57. Then the push spring 62 drives the push rod 63 to reset, and the push rod 63 pushes the shaft core 4 out, and then the shaft core 4 can be removed. This solution simplifies the operating steps of the equipment and avoids the use of traditional bolt tightening methods, effectively reducing the loosening of the shaft core 4 during processing, thereby improving the safety of equipment processing and facilitating the normal use of the equipment.

Claims

1. A quickly replaceable gear hobbing fixture, comprising a support (1), a mounting plate (2) being fixedly connected to the lower surface of the support (1), a cushion block (3) being mounted on the upper surface of the support (1), and an axis core (4) being inserted into the interior of the support (1), characterized in that: A positioning device (5) is provided inside the support (1), and the positioning device (5) comprises a mounting tube (52), the mounting tube (52) is fixedly connected to the inner wall of the support (1), a guide block (54) is slidably connected to the inner wall of the mounting tube (52), a retaining ring (55) is fixedly connected to one side of the guide block (54), a retaining groove (57) is provided on the surface of the shaft core (4), one end of the retaining ring (55) is inserted into the retaining groove (57), and a conduit (51) is connected to the surface of the mounting tube (52).

2. A quickly replaceable gear hobbing fixture according to claim 1, characterized in that: A return spring (53) is fixedly connected to the inner wall of the installation cylinder (52), and one end of the return spring (53) is fixedly connected to the surface of the guide block (54).

3. The quickly replaceable gear hobbing fixture according to claim 1, characterized in that: The number of the clamping rings (55) is two, and the two clamping rings (55) are symmetrically arranged.

4. The quickly replaceable gear hobbing fixture according to claim 1, characterized in that: A magnet (56) is fixedly connected to one side of the two clamping rings (55) that are close to each other.

5. The quickly replaceable gear hobbing fixture according to claim 1, characterized in that: The inner wall of the support (1) is fixedly connected to a bracket (58), the surface of the bracket (58) is fixedly connected to a tray (59), and the shaft core (4) is located above the tray (59).

6. The quickly replaceable gear hobbing fixture according to claim 5, characterized in that: An auxiliary device (6) is provided on the surface of the tray (59), and the auxiliary device (6) is located directly below the shaft core (4).

7. A quickly replaceable gear hobbing fixture according to claim 6, characterized in that: The auxiliary device (6) comprises a push rod (63), the push rod (63) slides with the inner wall of the tray (59), the lower end of the push rod (63) is fixedly connected to a positioning block (61), the upper surface of the positioning block (61) is fixedly connected to a push spring (62), the push spring (62) is sleeved on the push rod (63), and one end of the push spring (62) away from the positioning block (61) is fixedly connected to the surface of the tray (59).

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