Device for preventing end face tooth transmission shaft from being crushed and pressing machine

Abstract

The device comprises a floating guide sleeve of a T-shaped structure, a compression spring is arranged in the floating guide sleeve, an end face fluted disc is arranged on the inner side of the upper end of the floating guide sleeve in a sliding fit mode, and the lower end face of the end face fluted disc abuts against the compression spring. The upper end face of the end face fluted disc is provided with positioning teeth used for being matched with end face teeth of a workpiece to be machined, the upper end face of the floating guide sleeve is further provided with a positioning seat used for positioning the workpiece to be machined, the positioning seat is located on the outer ring of the end face fluted disc and fixedly installed on the floating guide sleeve through a bolt, and the inner side wall of the positioning seat is provided with a limiting step. The end face fluted disc is provided with a boss matched with the limiting step. The lower end face of the floating guide sleeve is provided with an installation hole used for being assembled to a pressing machine, and the side face of the floating guide sleeve is provided with a locking groove and a positioning clamping groove used for driving the floating guide sleeve to rotate. The device is simple in structure, end face teeth of parts are prevented from being crushed, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to press equipment technical field, concretely relates to a floating and press fitting machine of preventing end face tooth pressure injury. BACKGROUND

[0002] When one end face tooth part (outer star wheel) and other parts (transmission shaft) are assembled into an assembly, the assembly needs to be completed by a press. The existing equipment automatic assembly line adopts the mode that the parts to be assembled are put into a tool, the end face tooth of the tool is matched with the end face tooth of the part to be assembled to drive the part to be assembled to rotate to a proper position, and then the press fitting is carried out. However, since the end face tooth of the tool is in hard contact with the end face tooth of the part to be assembled, the end face tooth of the part to be assembled is easily injured during the press fitting, which affects the product quality. SUMMARY

[0003] The utility model discloses in view of the prior art's insufficient, provide a kind of floating and press fitting machine of preventing end face tooth pressure injury, prevent the end face tooth of part from being injured, improve product quality.

[0004] One of the purposes of the utility model adopts the technical scheme that:

[0005] A device for preventing end face tooth transmission shaft from being injured, comprising a floating guide sleeve in T-shaped structure, a compression spring is arranged in the floating guide sleeve, a slidingly matched end face tooth disc is arranged on the inner side of the upper end of the floating guide sleeve, the lower end surface of the end face tooth disc abuts on the compression spring, the upper end surface of the end face tooth disc is provided with a positioning tooth for cooperating with the end face tooth of a workpiece to be machined, the upper end surface of the floating guide sleeve is further provided with a positioning seat for positioning the workpiece to be machined, the positioning seat is located outside the end face tooth disc and is fixed on the floating guide sleeve by bolts, the inner side wall of the positioning seat is provided with a limiting step, and the end face tooth disc is provided with a boss matched with the limiting step; a mounting hole for assembling the press fitting machine is formed in the lower end surface of the floating guide sleeve, and a locking groove and a positioning clamping groove for driving the floating guide sleeve to rotate are formed in the side surface of the floating guide sleeve.

[0006] Further, the floating guide sleeve comprises a guide sleeve body and an end plate arranged at the lower end of the guide sleeve body, the end plate is fixed on the guide sleeve body by bolts, the compression spring is arranged in the guide sleeve body, one end of the compression spring abuts on the end face tooth disc, and the other end of the compression spring abuts on the end plate, and the mounting hole is formed in the middle part of the end plate.

[0007] Further, the lower end of the end face tooth disc is provided with a guide portion slidingly matched with the inner side wall of the floating guide sleeve.

[0008] Further, an emptying groove is formed in the upper end of the guide portion.

[0009] Furthermore, the upper end face of the floating guide sleeve is provided with a positioning seat mounting groove, and the positioning seat is positioned on the floating guide sleeve through the positioning seat mounting groove.

[0010] Furthermore, the end face toothed disk has multiple positioning teeth, which are distributed circumferentially along the end face toothed disk.

[0011] Furthermore, the positioning slot is disposed on the upper end face of the floating guide sleeve.

[0012] The second objective of this utility model is achieved through the following technical solution:

[0013] A press fitting machine includes a press fitting platform and a drive mechanism. A press head is disposed on the press fitting platform. The drive mechanism and the press head also include the device described above for preventing damage to the end face gear transmission shaft. The floating guide sleeve is mounted on the press head.

[0014] The above technical solution has the following beneficial effects:

[0015] This invention features a simple structure. The end face gear plate is mounted on a floating guide sleeve via a compression spring, providing a buffering force between the end face gear plate and the end face teeth of the workpiece during stamping. This prevents damage to the workpiece's end face teeth and reduces noise and vibration. A positioning seat on the outer ring of the end face gear plate axially positions the workpiece, ensuring that the mating position between the workpiece and the end face gear plate remains unchanged, thus guaranteeing workpiece machining accuracy.

[0016] The floating guide sleeve includes a guide sleeve body and an end plate disposed at the lower end of the guide sleeve body, which facilitates assembly.

[0017] The lower end of the end face gear is provided with a guide portion that slides with the inner side of the floating guide sleeve, and the upper end of the guide portion is provided with a clearance groove to facilitate the axial movement of the end face gear within the floating guide sleeve.

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the structure of specific embodiment 1;

[0020] Fig. 2 This is an axial sectional view of specific embodiment 1;

[0021] Fig. 3 This is a partial structural schematic diagram of specific embodiment 1.

[0022] In the attached diagram, 1 is the positioning seat, 2 is the limiting step, 3 is the floating guide sleeve, 4 is the end face gear plate, 4-1 is the positioning tooth, 5 is the compression spring, 6 is the end plate, 7 is the guide sleeve body, 8 is the guide part, 9 is the clearance groove, 10 is the locking groove, and 11 is the positioning slot. Detailed Implementation Specific Implementation Example 1

[0023] See Figs. 1 to 3 As shown, a device for preventing damage to an end face gear drive shaft includes a T-shaped floating guide sleeve 3. A compression spring 5 is provided inside the floating guide sleeve 3. A slidingly engaging end face gear disk 4 is provided on the inner side of the upper end of the floating guide sleeve 3. The lower end face of the end face gear disk 4 abuts against the compression spring 5. The upper end face of the end face gear disk 4 is provided with positioning teeth 4-1 for engaging with the end face teeth of the workpiece to be processed. Multiple positioning teeth 4-1 are provided on the end face gear disk, distributed circumferentially along the end face gear disk, reducing the mating area between the device and the workpiece to be processed, thus lowering manufacturing costs. In this specific embodiment: the floating guide sleeve 3 includes a guide sleeve body 7 and an end plate 6 disposed at the lower end of the guide sleeve body. The end plate is fixed to the guide sleeve body 7 by six bolts. The compression spring 5 is disposed within the guide sleeve body, with one end abutting against the end face gear disk 4 and the other end abutting against the end plate 6. The end plate 6 has a mounting hole in its center. The lower end of the end face gear 4 is provided with a guide part 8 that slides with the inner side wall of the floating guide sleeve 3. The upper end of the guide part 8 is provided with a clearance groove 9. The guide part slides with the floating guide sleeve, and the compression spring 5 abuts against the lower end face of the guide part of the end face gear 4.

[0024] The upper end face of the floating guide sleeve 3 is provided with a positioning seat mounting groove, and the upper end face of the floating guide sleeve is also provided with a positioning seat 1 for positioning the workpiece to be processed. The positioning seat 1 is positioned on the floating guide sleeve 3 through the positioning seat mounting groove. The positioning seat 1 is located on the outer ring of the end face gear plate and is fixed to the floating guide sleeve by bolts. In this specific embodiment: the positioning seat 1 is disc-shaped, and the positioning seat is provided with six countersunk bolt holes. The positioning seat is fixed to the floating guide sleeve by six bolts.

[0025] The inner side wall of the positioning seat 1 is provided with a limiting step 2, and the end face toothed plate is provided with a boss that cooperates with the limiting step 2 to restrict the end face toothed plate from sliding out of the positioning seat; the lower end face of the floating guide sleeve is provided with a mounting hole for assembly into the press fitting machine.

[0026] The floating guide sleeve has a locking groove 10 and a positioning groove 11 for rotating the floating guide sleeve on its side. The positioning groove 11 is located on the upper end face of the floating guide sleeve. The locking groove 10 is located on the side of the guide sleeve body of the floating guide sleeve and is used to lock the floating guide sleeve when the device is installed on the press machine. The positioning groove 11 is used to cooperate with the drive key on the press machine, so that the device of this utility model rotates together when the press machine rotates.

[0027] The working principle of this utility model is as follows: the workpiece to be processed is placed on the end face toothed disc of the upper end of the floating guide sleeve, and the end face teeth of the workpiece to be processed are elastically matched with the stroke of the floating guide sleeve of this utility model, thereby effectively avoiding damage to the workpiece to be processed during press-fitting. Specific Implementation Example 2

[0028] The feature of this specific embodiment is: a press fitting machine, including a press fitting platform and a drive mechanism, with a press head disposed on the press fitting platform. The drive mechanism and the press head also include the device for preventing damage to the end face gear transmission shaft as described in Specific Embodiment 1, and the floating guide sleeve is mounted on the press head. Other features are the same as in Specific Embodiment 1, so they are omitted here.

Claims

1. A device for preventing damage to the end face of a gear transmission shaft, characterized in that: The device includes a T-shaped floating guide sleeve, a compression spring inside the floating guide sleeve, and a slidingly fitted end face gear disk on the inner side of the upper end of the floating guide sleeve. The lower end face of the end face gear disk abuts against the compression spring. The upper end face of the end face gear disk has positioning teeth for engaging with the end face teeth of the workpiece to be processed. The upper end face of the floating guide sleeve also has a positioning seat for positioning the workpiece to be processed. The positioning seat is located on the outer ring of the end face gear disk and is fixed to the floating guide sleeve by bolts. The inner side wall of the positioning seat has a limiting step, and the end face gear disk has a boss that engages with the limiting step. The lower end face of the floating guide sleeve has a mounting hole for assembly into a press fitting machine. The side of the floating guide sleeve has a locking groove and a positioning slot for driving the floating guide sleeve to rotate.

2. The device for preventing damage to the end face gear transmission shaft according to claim 1, characterized in that: The floating guide sleeve includes a guide sleeve body and an end plate disposed at the lower end of the guide sleeve body. The end plate is fixed to the guide sleeve body by bolts. The compression spring is disposed in the guide sleeve body. One end of the compression spring abuts against the end face gear plate, and the other end abuts against the end plate. The mounting hole is opened in the middle of the end plate.

3. The device for preventing damage to the end face gear transmission shaft according to claim 1, characterized in that: The lower end of the end face toothed disc is provided with a guide portion that slides in cooperation with the inner sidewall of the floating guide sleeve.

4. The device for preventing damage to the end face gear transmission shaft according to claim 3, characterized in that: The upper end of the guide section is provided with a clearance groove.

5. The device for preventing damage to the end face gear transmission shaft according to claim 1, characterized in that: The upper end face of the floating guide sleeve is provided with a positioning seat mounting groove, and the positioning seat is positioned on the floating guide sleeve through the positioning seat mounting groove.

6. The device for preventing damage to the end face gear transmission shaft according to claim 1, characterized in that: The end face toothed disk has multiple positioning teeth, which are distributed circumferentially along the end face toothed disk.

7. The device for preventing damage to the end face gear transmission shaft according to claim 1, characterized in that: The positioning slot is located on the upper end face of the floating guide sleeve.

8. A pressing machine, comprising a pressing platform and a drive mechanism, wherein a pressing head is disposed on the pressing platform, and the drive mechanism and the pressing head are characterized in that: It also includes the device for preventing damage to the end face gear drive shaft as described in any one of claims 1 to 7, wherein the floating guide sleeve is mounted on the pressure head.

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