Quickly-replaceable gear shaping clamp

Abstract

The utility model relates to a gear shaping clamp capable of being quickly replaced, and belongs to the technical field of gear shaping clamps. The clamp body is fixed on a machine tool and is provided with a cavity for accommodating the expansion sleeve assembly; the expansion sleeve assembly is installed in the cavity in a replaceable mode and provided with a spline clamping cavity for positioning and clamping a spline, and the expansion sleeve assembly is matched with the cavity; the flange is connected to the spline in a sleeved mode, and when the spline is clamped in the spline positioning cavity, the flange limits the spline in the axial direction. By the adoption of the technical scheme, when the gear shaping machine is used for machining different splines of a new energy shaft, the gear shaping clamp can be rapidly replaced by replacing the expansion sleeve assembly, and machining of various splines is met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gear shaping jigs, in particular to a gear shaping jig capable of being quickly replaced. BACKGROUND

[0002] In the process of machining the splines of a new energy shaft by using a gear shaping machine, the splines of different types need to be machined on the same new energy shaft. However, the parameters of the splines and the diameters of the outer circles are different, so different gear shaping jigs need to be replaced during machining. However, the replacement steps of the gear shaping jigs are complex, so the machining efficiency of the new energy shaft is reduced. In order to improve the convenience and machining speed of machining different splines during the machining of the new energy shaft, a gear shaping jig capable of being quickly replaced is needed to quickly replace the jigs when different splines need to be machined. CONTENT OF THE UTILITY MODEL

[0003] In view of the defects of the prior art, the application provides a gear shaping jig capable of being quickly replaced to quickly replace the jigs when different splines need to be machined.

[0004] To achieve the above-mentioned purpose, the application provides a gear shaping jig capable of being quickly replaced, which comprises a jig body, a sleeve assembly and a flange.

[0005] The jig body is fixed on a machine tool and has a cavity for accommodating the sleeve assembly.

[0006] The sleeve assembly is replaceably installed in the cavity and has a spline clamping cavity for positioning and clamping the spline. The sleeve assembly is adapted to the cavity.

[0007] The flange is sleeved on the spline and axially limits the spline when the spline is clamped in the spline positioning cavity.

[0008] Optionally, the gear shaping jig further comprises an adjusting flange installed at the bottom of the jig body. The inner diameter of the adjusting flange is matched with the shaft shoulder of the sleeve assembly, and the adjusting flange is used to adjust the installation height of the sleeve assembly in the jig body.

[0009] Optionally, the side wall of the cavity is provided with a first positioning through hole, and the side wall of the sleeve assembly is provided with a positioning groove. The first positioning through hole limits the positioning groove through a screw, and is used to determine the radial position of the sleeve assembly.

[0010] Optionally, the sleeve assembly comprises a spring collet, a center, a spring and a screw plug. The spring collet is used to clamp the spline and axially limit the center. The center is arranged at the inner side of the spring collet and the axis of the cavity. The spring is arranged below the center. The bottom end of the spring is fixed to the inner side of the spring collet through the screw plug.

[0011] Optionally, the expansion sleeve assembly further comprises a connecting rod arranged at the bottom end of the spring collet for connecting the draw bar of the gear shaping machine.

[0012] Optionally, the spring collet has a second positioning through hole at the lower end, the connecting rod has an annular groove, and the second positioning through hole is limited by a joint mounting bolt arranged at the second positioning through hole and the annular groove, so as to fix the connecting rod.

[0013] Optionally, the flange has a third positioning through hole, the clamp body has a flange mounting hole, and the third positioning through hole and the flange mounting hole are matched by a flange mounting bolt to fix the flange on the clamp body.

[0014] Optionally, the expansion sleeve assembly and the clamp body are provided with a liquid discharge channel connected therewith for discharging the cooling liquid and iron filings in the spline machining process.

[0015] The application provides a quick-change gear shaping clamp, which comprises a clamp body, an expansion sleeve assembly and a flange.

[0016] Compared with the existing multi-spline machining mode of manually replacing the clamp body for machining various splines of a new energy shaft, the application provides a quick-change gear shaping clamp, which can fix different types of splines by replacing the expansion sleeve assembly in the clamp body and axially limit the splines by the flange, so that the clamp can be quickly replaced when the new energy shaft needs to be machined with various splines. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic structural diagram of a gear shaping clamp according to an embodiment of the application;

[0018] Figure 2 FIG. 1 is a schematic structural diagram of a gear shaping clamp according to an embodiment of the application;

[0019] Figure 3 FIG. 1 is a schematic structural diagram of a gear shaping clamp according to an embodiment of the application;

[0020] Figure 4 FIG. 1 is a schematic structural diagram of a gear shaping clamp according to an embodiment of the application;

[0021] Figure 5 Figure 1 is a schematic view of an adjusting flange structure of an embodiment of a quick-change gear shaping fixture according to the present application.

[0022] Reference signs:

[0023] 1, connecting rod; 2, plug; 3, adjusting flange; 4, center; 5, spring chuck; 6, clamping body; 7, flange; 8, flange mounting bolt; 9, clamping body mounting bolt; 10, screw; 11, spring; 12, adjusting flange mounting bolt; 13, joint mounting bolt; 14, spring chuck B; 15, flange B; 16, expansion sleeve assembly; 17, expansion sleeve assembly B; 18, positioning groove; 19, annular structure one; 20, annular structure two; 21, annular groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0026] In the process of machining the spline of the new energy shaft using a gear shaping machine, the situation of machining multiple splines on the same new energy shaft may be encountered. Due to the different parameters of the splines and the diameters of the outer circles, different gear shaping fixtures need to be replaced during machining, but the replacement steps of the gear shaping fixtures are complex, thus reducing the machining efficiency of the new energy shaft.

[0027] In view of the above phenomenon, in a first embodiment of a quick-change gear shaping fixture according to the present application, a gear shaping fixture is provided, which comprises a clamping body 6, an expansion sleeve assembly 16 and a flange 7. The clamping body 6 is fixed to a machine tool and has a cavity accommodating the expansion sleeve assembly 16. The expansion sleeve assembly 16 is replaceably mounted in the cavity and has a spline clamping cavity for positioning and clamping the spline. The expansion sleeve assembly is adapted to the cavity. The flange 7 is sleeved on the spline and axially limits the spline when the spline is clamped in the spline positioning cavity.

[0028] It should be noted that the above description is only a specific implementation of the present application, and the present application is not limited to the above implementation. Any changes, modifications, equivalents and improvements made by those skilled in the art based on the above description should be covered by the protection scope of the present application. Figure 1, the clamping body 6 is annular structure, the upper end has a mounting plane, the mounting plane is provided with a mounting hole, the clamping body 6 is fixedly installed on the machine tool through the clamping body mounting bolt 9. The expansion sleeve assembly 16 is installed in the cavity of the annular structure of the clamping body 6, the expansion sleeve assembly 16 is adapted to the cavity in size, the expansion sleeve assembly 16 generates a gripping force by elastic deformation, and contains an elastic element, which can be rubber, silicone, spring steel sheet or the like. The spline clamping cavity of the expansion sleeve assembly 16 can clamp the new energy shaft to perform spline machining; the expansion sleeve assembly 16 can be replaced, and different spline types correspond to different types of expansion sleeve assemblies 16. When different spline types need to be machined, the expansion sleeve assembly 16 in the clamping body 6 can be replaced. The flange 7 has a mounting hole, and the flange 7 is connected with the clamping body 6 through a bolt, and the flange 7 cooperates with the outer shape structure of the spline to be machined, such as Figure 1 As shown in the figure, the flange 7 cooperates with the spline to be machined to clamp the outside shaft shoulder of the new energy shaft, so as to prevent the new energy shaft from sinking, and to limit the new energy shaft in the axial direction. In this embodiment and subsequent embodiments, the clamping body can clamp the spline part of the workpiece to be machined or the outer circular surface of the workpiece.

[0029] Exemplarily, Figure 1 When machining the spline A of the new energy shaft, the spline gear clamp uses the corresponding expansion sleeve assembly 16 to clamp, and the corresponding type of flange 7 is used to further limit the spline A of the new energy shaft in the axial direction; when machining the spline B of the new energy shaft, as shown in the right side of the figure, the expansion sleeve assembly 16 needs to be replaced by the expansion sleeve assembly B17 corresponding to the spline B, and the corresponding flange B15 is used to limit the spline in the axial direction. Figure 1

[0030] In this embodiment, compared with the existing spline machining method which needs to replace the entire spline gear clamp when machining different types of splines, the present application provides a quick-change spline gear clamp, which can fix different types of splines by replacing the expansion sleeve assembly 16 in the clamping body 6, and then limit the spline in the axial direction by the flange, so as to quickly replace the spline gear clamp when the new energy shaft needs to be machined with multiple splines.

[0031] Further, the spline gear clamp further comprises: an adjusting flange 3 installed at the bottom of the clamping body 6, the inner diameter of the adjusting flange 3 abuts against the shaft shoulder of the expansion sleeve assembly 16, and the adjusting flange 3 is used to adjust the installation height of the expansion sleeve assembly 16 in the clamping body 6.

[0032] In this embodiment, referring to Figure 1 And Figure 5 The bottom of the clamping body 6 annular structure is provided with an adjusting flange 3 connecting hole, the adjusting flange 3 has a mounting hole, and the adjusting flange 3 is fixed to the bottom of the clamping body 6 through the adjusting flange mounting bolt 12. Referring to Figure 3 ​The outer wall of the expansion sleeve assembly 16 has a shoulder with a reduced outer diameter, and the inner diameter of the adjusting flange 3 can clamp the shoulder of the expansion sleeve assembly 16 to adjust and limit the installation height of the expansion sleeve assembly 16 in the clamping body 6.

[0033] Further, the side wall of the cavity is provided with a first positioning through hole, and the side wall of the expansion sleeve assembly 16 is provided with a positioning groove 18; the first positioning through hole is limited by the positioning groove 18 through the screw 10, and is used to determine the radial position of the expansion sleeve assembly 16.

[0034] It should be noted that the side wall of the cavity of the clamping body 6 is provided with a first positioning through hole for positioning the expansion sleeve assembly 16, which is used to radially position and fix the installation angle of the expansion sleeve assembly 16.

[0035] Further, the expansion sleeve assembly 16 comprises a spring collet 5, a center 4, a spring 11 and a plug 2; the spring collet 5 is used to clamp the spline and axially limit the center 4, the center 4 is arranged at the inner side of the spring collet 5 and the axis of the cavity, the spring 11 is arranged below the center 4, and the bottom end of the spring 11 is fixed to the inner side of the spring collet 5 through the plug 2.

[0036] It should be noted that the gap of the spring collet 5 is filled with silica gel, and the gap of the spring collet 5 is filled with silica gel, and the gap of the spring collet 5 is filled with silica gel. Figure 3 The upper end of the spring collet 5 has an annular structure 19 for clamping the spline, the middle end of the spring collet 5 has an annular structure 20 for limiting the center 4, and the center 4 can vertically move in the annular structure 20. The plug 2 is fixed below the annular structure 20, and the spring 11 below the center 4 provides elastic force to the center 4.

[0037] Exemplarily, referring to Figure 1 When machining the spline A of the new energy shaft, the spring collet 5 in the expansion sleeve assembly 16 can clamp the spline A of the new energy shaft; when machining the spline B, the spring collet B 14 in the expansion sleeve assembly B 17 can clamp the spline B of the new energy shaft.

[0038] In this embodiment, when the gear shaping machine machines the spline of the new energy shaft, one end of the spline of the new energy shaft is clamped by the flange and the spring collet 5, and the other end is clamped by the center 4. The tip of the center 4 is in contact with the center hole of the spline of the new energy shaft to accurately determine the axial position of the spline of the new energy shaft.

[0039] Further, the expansion sleeve assembly 16 further comprises a connecting rod 1 arranged at the bottom end of the spring collet 5 and used to connect the pull rod of the gear shaping machine.

[0040] It should be noted that the connecting rod 1 is fixedly connected with the spring collet 5, and the connecting rod 1 is connected with the pull rod of the gear shaping machine.

[0041] Further, the spring collet 5 has a second positioning through hole at the lower end, the connecting rod 1 has a ring-shaped groove 21 at the upper end, the second positioning through hole is provided with a joint mounting bolt 13 to limit the ring-shaped groove 21, so as to fix the connecting rod 1.

[0042] It should be noted that the outer diameter of the upper end connecting part of the connecting rod 1 is matched with the inner diameter of the lower end of the spring collet 5. When connected, the connecting rod 1 is installed into the lower end of the spring collet 5, and the joint mounting bolt 13 at the second through hole is used to limit the ring-shaped groove 21, so as to fix the connecting rod 1.

[0043] Further, the flange has a third positioning through hole, and the clamp body 6 has a flange mounting hole; the third positioning through hole and the flange mounting hole are matched by a flange mounting bolt 8 to fix the flange 7 on the clamp body 6.

[0044] It should be noted that, referring to Figure 1 , Figure 2 and Figure 4 , the flange has different sizes according to different types of new energy shaft splines to be processed, including inner diameter and height. The flange 7 is fixed on the clamp body 6 by the flange mounting bolt 8.

[0045] Further, the expansion sleeve assembly 16 and the clamp body 6 are provided with a liquid discharge channel connected thereto, which is used to discharge the cooling liquid and iron filings in the spline machining process.

[0046] It should be noted that, referring to Figure 1 , Figure 3 and Figure 4 , the expansion sleeve assembly 16 and the clamp body 6 are provided with a liquid discharge channel, and the two liquid discharge channels are connected. Specifically, the expansion sleeve assembly 16 has a liquid discharge channel connected to the outer wall of the expansion sleeve assembly 16 in the spline positioning cavity, and the clamp body 6 has a liquid discharge channel connected to the outer wall of the clamp body 6 in the cavity.

[0047] Exemplarily, the first through hole of the clamp body 6 is positioned on the groove on the outer wall of the spring collet 5 by the screw 10, so that the liquid discharge channels of the spring collet 5 and the clamp body 6 are connected.

[0048] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0049] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, which can be limited only by the scope of the appended claims and their equivalents.

Claims

1. A quick-change pinion indexing fixture, characterized by, The present application relates to a gear shaper insert holder, and more particularly to a gear shaper insert holder with a replaceable sleeve assembly. The insert holder includes: a holder body fixed on a machine tool, having a cavity for accommodating the sleeve assembly; the sleeve assembly replaceably installed in the cavity, having a spline clamping cavity for positioning and clamping splines, the sleeve assembly being adapted to the cavity; and the flange sleeved on the splines, axially limiting the splines when the splines are clamped in the spline positioning cavity.

2. The quick change gear pinion jig defined in claim 1 wherein, The gear shaper insert holder further includes an adjusting flange installed on the bottom of the holder body, the inner diameter of the adjusting flange being fitted with the shoulder of the sleeve assembly, for adjusting the installation height of the sleeve assembly in the holder body.

3. The quick change gear pinion jig defined in claim 1 wherein, The side wall of the cavity is provided with a first positioning through hole, and the side wall of the sleeve assembly is provided with a positioning groove; the first positioning through hole limits the positioning groove through a screw, for determining the radial position of the sleeve assembly.

4. The quick change gear pinion jig defined in claim 1 wherein, The sleeve assembly includes a spring collet, a center, a spring, and a plug; the spring collet is used for clamping the splines and axially limiting the center, the center is arranged at the inner side of the spring collet and the axis of the cavity, the spring is arranged below the center, and the bottom end of the spring is fixed to the inner side of the spring collet through the plug.

5. The quick change gear pinion jig defined in claim 4 wherein, The sleeve assembly further includes a connecting rod arranged at the bottom end of the spring collet, for connecting the draw bar of the gear shaper.

6. The quick change gear pinion jig defined in claim 5 wherein, The lower end of the spring collet is provided with a second positioning through hole, the connecting rod is provided with an annular groove, and the second positioning through hole is provided with a joint installation bolt for limiting the annular groove, so as to fix the connecting rod.

7. The quick change gear pinion jig defined in claim 1 wherein, The flange is provided with a third positioning through hole, and the holder body is provided with a flange installation hole; the third positioning through hole and the flange installation hole are matched through a flange installation bolt, so as to fix the flange on the holder body.

8. The quick change gear pinion jig defined in claim 1 wherein, The sleeve assembly and the holder body are provided with a liquid discharge channel in communication, for discharging the cooling liquid and iron filings in the spline machining process.

Images