Expansion type hobbing device

Abstract

The utility model discloses an expansion type gear hobbing device, which relates to the technical field of gear hobbing processing, and comprises a gear hobbing mandrel body, a pressure fixing component, a pressure adjusting component and a pressure adjusting component, the expansion type gear hobbing device is characterized in that a gear hobbing mandrel body is installed on a working table by adopting a pressure rod to rotate and fixedly cooperate with an installation mechanism, the installation mechanism comprises a fixing plate, the fixing plate is arranged on the working table, and a hinge hole is formed in the outer wall of the fixing plate. The hobbing mandrel body and other parts can be kept stable in the machining process through the mounting mechanism, machining errors caused by equipment shaking are reduced, meanwhile, the hobbing mandrel body and other parts can be more conveniently maintained and replaced by means of the mounting mechanism, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing, in particular to an expansion type gear hobbing device. Background Art

[0002] During the gear (gear hobbing) processing, the aperture and end face of each part need to be reliably positioned. Generally, the gear hobbing mandrel is radially centered, the positioning plate is positioned on the end face, and the top pressure plate and nut are tightened. This results in slow product clamping, radial positioning clearance affecting tooth accuracy, low efficiency and poor accuracy.

[0003] Publication number CN212144841U discloses a manual gear hobbing expansion device comprising a fixed plate, a base, a mounting seat, and a positioning plate. The base is fixedly mounted on the fixed plate by a first screw, the top surface of the base is fixedly connected to the mounting seat by a second screw, a floating ring is sleeved on the outer side of the mounting seat, an elastic component is connected between the floating ring and the mounting seat, the floating ring and the mounting seat are positioned by a cylindrical pin, the outer side of the floating ring sleeves the positioning plate, the positioning plate is fixedly connected to the mounting seat by a third screw at one end near the base, the top surface of the floating ring is fixedly connected to the expansion sleeve, and a bolt is fixedly connected to the top surface of the mounting seat. This utility model provides a manual gear hobbing expansion device that uses an inner and outer cone to adjust the gap, so that the product is tightly connected to the expansion sleeve. The washer presses the tapered sleeve to increase the contact area to avoid local stress that affects the service life. It also facilitates workpiece disassembly and is easy to use.

[0004] As shown in the above-mentioned equipment, the expansion type gear hobbing device of the prior art facilitates the disassembly of the workpiece, but lacks a simple installation structure. When installing, maintaining and repairing the expansion type gear hobbing device, a lot of time and energy are required to solve positioning and installation problems, which will reduce the overall production efficiency of the gear hobbing device. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides an expansion type gear hobbing device, which solves the problems of the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an expansion type gear hobbing device, comprising:

[0007] A gear hobbing mandrel body, wherein a mounting mechanism is provided below the gear hobbing mandrel body for mounting the gear hobbing mandrel body on a workbench;

[0008] The pressure fixing assembly is arranged at the bottom end of the gear hobbing mandrel body, and the gear hobbing mandrel body is mounted on the workbench by rotating and fixing the pressure rod with the mounting mechanism;

[0009] The mounting mechanism includes a fixing plate, which is arranged on a workbench. A hinge hole is provided on the outer wall of the fixing plate. A fixed chassis is fixedly installed on the top of the fixing plate. A hinge column is fixedly installed on the inner wall of the fixed chassis. An auxiliary fixing component is provided inside the hinge column. An insertion groove is provided on the outer wall of the fixing plate.

[0010] Preferably, the auxiliary fixing assembly includes a connecting ring, which is fixedly mounted on the inner wall of the hinge column, a rubber movable plate is fixedly mounted on the top end of the connecting ring, a fastening plate is fixedly mounted on the top end of the rubber movable plate, and an insertion ring is fixedly mounted on the bottom end of the connecting ring.

[0011] Preferably, the pressure fixing assembly includes a circular groove plate, which is arranged below the gear hobbing core shaft body, a pressure rod is fixedly installed on the outer wall of the circular groove plate, a pressure wrench is fixedly installed on the outer wall of the pressure rod, a threaded sleeve is fixedly installed on the bottom end of the circular groove plate, and a groove plate is fixedly installed on the bottom end of the threaded sleeve.

[0012] Preferably, the inner wall of the gear hobbing mandrel body is hinged with a screw, the outer wall of the gear hobbing mandrel body is movably connected with a positioning plate, and the gear hobbing mandrel body is press-fitted by the screw to prevent the positioning plate from slipping due to circumferential force.

[0013] Preferably, the outer wall of the gear hobbing mandrel body is provided with a tapered sleeve, the outer wall of the gear hobbing mandrel body is provided with an expansion sleeve, and the bottom end of the gear hobbing mandrel body is fixedly installed with an insertion rod.

[0014] Preferably, the outer wall of the gear hobbing core shaft body is rotatably connected with a nut, and loosening and tightening of the nut causes the tapered sleeve to move axially along with the gear hobbing core shaft body, and the axial movement of the cone drives the expansion sleeve to expand and return to its original position.

[0015] The utility model provides an expansion type gear hobbing device. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The expansion type gear hobbing device is provided with a mounting mechanism, which can keep the gear hobbing mandrel body and other components stable during the processing, reducing the processing error caused by the shaking of the equipment. At the same time, with the help of the mounting mechanism, the gear hobbing mandrel body and other components can be maintained and replaced more conveniently, reducing maintenance costs.

[0017] 2. The expansion type gear hobbing device is equipped with a pressure fixing assembly. The gear hobbing mandrel body and other components can be installed on the workbench by turning the pressure wrench to match the installation mechanism. Compared with the traditional nut fixing, which requires specific work and skills for installation, the process is more labor-saving and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation mechanism structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary fixing component structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the pressure fixing assembly of the present invention.

[0023] In the figure: 1. Gear hobbing spindle body; 2. Pressure fixing assembly; 21. Circular groove plate; 22. Pressure rod; 23. Pressure wrench; 24. Threaded sleeve; 25. Grooved plate; 3. Mounting mechanism; 31. Fixing plate; 32. Hinge hole; 33. Fixed chassis; 34. Hinge column; 35. Auxiliary fixing assembly; 351. Connecting ring; 352. Rubber movable plate; 353. Fastening plate; 354. Insert ring; 36. Insert groove; 4. Taper sleeve; 5. Expansion sleeve; 6. Nut; 7. Insert rod; 8. Screw; 9. Positioning plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See Figure 1-Figure 5 , the utility model provides the following two technical solutions:

[0026] First embodiment: An expansion gear hobbing device, comprising:

[0027] A gear hobbing mandrel body 1 is provided with a mounting mechanism 3 below the gear hobbing mandrel body 1 for mounting the gear hobbing mandrel body 1 on a workbench;

[0028] The pressure fixing assembly 2 is provided at the bottom end of the gear hobbing mandrel body 1, and the gear hobbing mandrel body 1 is mounted on the workbench by rotating and fixing the pressure rod 22 with the mounting mechanism 3;

[0029] The inner wall of the gear hobbing mandrel body 1 is hinged with a screw 8, and the outer wall of the gear hobbing mandrel body 1 is movably connected with a positioning plate 9. The gear hobbing mandrel body 1 is press-fitted by the screw 8 to prevent the positioning plate 9 from slipping due to circumferential force.

[0030] The outer wall of the gear hobbing mandrel body 1 is provided with a tapered sleeve 4 , the outer wall of the gear hobbing mandrel body 1 is provided with an expansion sleeve 5 , and the bottom end of the gear hobbing mandrel body 1 is fixedly mounted with an insertion rod 7 .

[0031] The outer wall of the gear hobbing mandrel body 1 is rotatably connected with a nut 6. The loosening and tightening of the nut 6 causes the tapered sleeve 4 to move axially along with the gear hobbing mandrel body 1. The axial movement of the cone drives the expansion sleeve 5 to expand and return to its original position.

[0032] The mounting mechanism 3 includes a fixing plate 31, which is arranged on a workbench. A hinge hole 32 is provided on the outer wall of the fixing plate 31. A fixing chassis 33 is fixedly installed on the top of the fixing plate 31. A hinge column 34 is fixedly installed on the inner wall of the fixing chassis 33. An auxiliary fixing component 35 is provided inside the hinge column 34. An insertion slot 36 is provided on the outer wall of the fixing plate 31.

[0033] The auxiliary fixing assembly 35 includes a connecting ring 351, which is fixedly mounted on the inner wall of the hinge column 34. A rubber movable plate 352 is fixedly mounted on the top of the connecting ring 351, a fastening plate 353 is fixedly mounted on the top of the rubber movable plate 352, and an insertion ring 354 is fixedly mounted on the bottom end of the connecting ring 351.

[0034] The expansion type gear hobbing device is provided with an installation mechanism 3, through which the gear hobbing core shaft body 1 and other components can be kept stable during the processing, reducing the processing errors caused by the shaking of the equipment. At the same time, with the help of the installation mechanism 3, the gear hobbing core shaft body 1 and other components can be maintained and replaced more conveniently, reducing the maintenance cost.

[0035] The second embodiment is mainly different from the first embodiment in that the pressure fixing assembly 2 includes a circular groove plate 21, which is arranged below the gear hobbing core shaft body 1, and a pressure rod 22 is fixedly installed on the outer wall of the circular groove plate 21, and a pressure wrench 23 is fixedly installed on the outer wall of the pressure rod 22, and a threaded sleeve 24 is fixedly installed on the bottom end of the circular groove plate 21, and a groove plate 25 is fixedly installed on the bottom end of the threaded sleeve 24.

[0036] The expansion type gear hobbing device is provided with a pressure fixing component 2. The gear hobbing core shaft body 1 and other components can be installed on the workbench by rotating the matching installation mechanism 3 with a pressure wrench. Compared with the traditional nut 6 fixation, which requires specific work and skills for installation, the process is more labor-saving and convenient.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] When the expansion type gear hobbing device needs to be installed, the mounting mechanism 3 is first fixed to the workbench by the intersection screw and the hinge hole 32, and then the pressure fixing assembly 2 is inserted into the outer wall of the insertion rod 7, and then the insertion rod 7 is inserted into the insertion groove 36 below the hinge column 34, and then the pressure rod 22 and the circular groove plate 21 are rotated by rotating the press wrench 23, thereby driving the threaded sleeve 24 at the bottom end of the circular groove plate 21 to rotate. As the threaded sleeve 24 continues to rotate and enters the hinge column 34, the groove plate 25 connected to its bottom end is continuously rotated. The fastening plate 353 is squeezed, and as the fastening plate 353 is continuously squeezed, the rubber movable plate 352 is continuously pressed against the insertion rod 7. As the degree of tightness increases, the insertion rod 7 can be tightly fixed, and then the top end of the insertion rod 7 is connected to other components of the expansion type gear hobbing device and installed on the workbench. Whenever other components of the expansion type gear hobbing device need to be replaced and repaired, it is only necessary to turn the pressure wrench 23 to drive the threaded sleeve 24 to rotate in the opposite direction to loosen the fastening plate 353, and the insertion rod 7 and other components of the expansion type gear hobbing device can be removed for repair.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An expansion type gear hobbing device, characterized in that: include: A gear hobbing mandrel body (1), wherein a mounting mechanism (3) is provided below the gear hobbing mandrel body (1) for mounting the gear hobbing mandrel body (1) on a workbench; A pressure fixing assembly (2) is provided at the bottom end of the gear hobbing mandrel body (1), and the gear hobbing mandrel body (1) is mounted on a workbench by rotating and fixing the pressure rod (22) to cooperate with the mounting mechanism (3); The mounting mechanism (3) comprises a fixing plate (31), the fixing plate (31) being arranged on a workbench, a hinge hole (32) being provided on an outer wall of the fixing plate (31), a fixing chassis (33) being fixedly mounted on the top end of the fixing plate (31), a hinge column (34) being fixedly mounted on the inner wall of the fixing chassis (33), an auxiliary fixing assembly (35) being provided inside the hinge column (34), and an insertion slot (36) being provided on the outer wall of the fixing plate (31).

2. The expansion gear hobbing device according to claim 1, characterized in that: The auxiliary fixing assembly (35) comprises a connecting ring (351), the connecting ring (351) being fixedly mounted on the inner wall of the hinge column (34), a rubber movable plate (352) being fixedly mounted on the top end of the connecting ring (351), a fastening plate (353) being fixedly mounted on the top end of the rubber movable plate (352), and an insertion ring (354) being fixedly mounted on the bottom end of the connecting ring (351).

3. The expansion type gear hobbing device according to claim 1, characterized in that: The pressure fixing assembly (2) comprises a circular groove plate (21), the circular groove plate (21) being arranged below the gear hobbing core shaft body (1), a pressure rod (22) being fixedly mounted on the outer wall of the circular groove plate (21), a pressure wrench (23) being fixedly mounted on the outer wall of the pressure rod (22), a threaded sleeve (24) being fixedly mounted on the bottom end of the circular groove plate (21), and a groove plate (25) being fixedly mounted on the bottom end of the threaded sleeve (24).

4. The expansion type gear hobbing device according to claim 1, characterized in that: The inner wall of the gear hobbing core shaft body (1) is hinged with a screw (8), and the outer wall of the gear hobbing core shaft body (1) is movably connected with a positioning plate (9). The gear hobbing core shaft body (1) is press-fitted by the screw (8) to prevent the positioning plate (9) from slipping due to circumferential force.

5. The expansion type gear hobbing device according to claim 1, characterized in that: The outer wall of the gear hobbing core shaft body (1) is provided with a tapered sleeve (4), the outer wall of the gear hobbing core shaft body (1) is provided with an expansion sleeve (5), and the bottom end of the gear hobbing core shaft body (1) is fixedly mounted with an insertion rod (7).

6. The expansion type gear hobbing device according to claim 1, characterized in that: The outer wall of the gear hobbing core shaft body (1) is rotatably connected to a nut (6), and tightening and loosening of the nut (6) causes the cone sleeve (4) to move axially along with the gear hobbing core shaft body (1), and the axial movement of the cone drives the expansion sleeve (5) to expand and return to its original position.

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