CN219444286U - Anti-deformation clamping tool - Google Patents

Abstract

The utility model discloses an anti-deformation clamping tool which comprises a base, a cushion block, a central gear, a linkage gear and a limiting groove, wherein the upper surface of the base is connected with the sliding cushion block, the inside of the base is provided with the rotary central gear, one side of the base is internally provided with the rotary linkage gear, the upper surface of the base is provided with the limiting groove, the upper end of the limiting groove is provided with a sliding block, the upper end side surface of the sliding block is fixedly connected with a connecting rod, the upper surface of the central disk is provided with a rotary transmission bevel gear, one end of the transmission bevel gear is fixedly connected with a displacement rod, the outer surface of the displacement rod is connected with a displacement block, and the upper end of the displacement block is connected with a clamping block. This anti-deformation centre gripping frock is slided to the mode that supports the work piece below through the cushion, cooperates the pressure plate to press the mode of work piece surface department directly over the cushion, reduces the work piece and receives the deformation that the frock centre gripping influences and produce in the course of working.

Description

Anti-deformation clamping tool

Technical Field

The utility model relates to the technical field of planet carrier machining, in particular to an anti-deformation clamping tool.

Background

The planet carrier is one of main components of the planetary gear transmission device, the planet wheel shaft or the bearing is arranged on the planet carrier, when the planet carrier is manufactured by using an integral forging piece, the cutting amount in the machining process is large, when one side of the planet carrier is hollowed after machining is finished, the clamping tool positioned outside the planet carrier can deform the planet carrier due to the pressure of the clamping tool on the machined position, so that a stress relieving procedure is required in the machining process, otherwise, the planet carrier can be greatly deformed in the machining process, a mode of loose clamping after rough machining is usually adopted in the traditional process, and then finish machining is carried out after stress is released, but the machining mode often causes the excessive cutting of a workpiece due to inaccurate cutting allowance control and offset of a machining center caused by secondary clamping in the machining process, and the guarantee of the machining precision of the workpiece is not facilitated.

Disclosure of Invention

The utility model aims to provide an anti-deformation clamping tool, which solves the problem that the clamping mode of the tool in the background technology is poor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an anti-deformation clamping tool, includes base, cushion, sun gear, linkage gear and spacing groove, the upper surface of base is connected with gliding cushion, the internally mounted of base has pivoted sun gear, and one side internally mounted of base has pivoted linkage gear, the spacing groove has been seted up to the upper surface of base, the slider is installed to the upper end of spacing groove, the upper end side fixed surface of slider is connected with the connecting rod, and the one end lower surface mounting of connecting rod is provided with the fixture block, the upper surface mounting of base has pivoted centre dish, the upper surface fixedly connected with drive bevel gear of centre gear, and the centre dish upper surface of just above the drive bevel gear is provided with circular shape board, the upper surface mounting of centre dish has pivoted spacing runner, the draw-in groove has been seted up to the upper surface of base, the upper surface mounting of centre dish has pivoted drive bevel gear, the one end fixedly connected with displacement pole, the surface connection of displacement pole has the displacement piece, the upper end of displacement piece is connected with the clamp block.

Preferably, the sun gear is in meshed connection with the linkage gear, and the linkage gear penetrates through the outer side surface of the base.

By adopting the technical scheme, the central gear is driven to rotate by the meshing of the linkage gear and the central gear.

Preferably, the limiting groove is arc-shaped, the limiting groove is in sliding connection with the sliding block, and the limiting groove and the linkage gear are concentric.

By adopting the technical scheme, the sliding block can drive the connecting rod to slide by taking the linkage gear as the circle center.

Preferably, the connecting rod is arc-shaped, and the connecting rod is connected with the tooth block on the outer surface of the linkage gear in a clamping way through the clamping block.

By adopting the technical scheme, the connecting rod can slide to drive the linkage gear to rotate through the clamping block.

Preferably, the upper end of the drive bevel gear penetrates through the outer surface of the central disc and is in meshed connection with the transmission bevel gear, and the transmission bevel gear is in threaded connection with the displacement block through the displacement rod.

By adopting the technical scheme, when the driving bevel gear drives the transmission bevel gear to rotate, the driving bevel gear can slide with the driving displacement block through the displacement rod.

Preferably, the displacement block is rotationally connected with the clamping block, and the displacement block is in sliding connection with the central disc.

By adopting the technical scheme, the clamping block can rotate to pass the obstacle when the upper end is blocked.

Compared with the prior art, the utility model has the beneficial effects that: this anti-deformation centre gripping frock:

1. the mode that the cushion block slides to the lower part of the workpiece to support the workpiece is matched with the mode that the pressing plate presses the surface of the workpiece right above the cushion block, so that deformation of the workpiece caused by the clamping influence of a tool in the machining process is reduced;

2. the workpiece is supported and clamped from the inner side of the workpiece through the displacement block, so that the workpiece cannot displace after stress is released by the loose clamp, and the position accuracy of the workpiece in the process of secondary clamping can be ensured when the reserved cutting quantity is small;

3. the connecting rod drives the clamping block to slide downwards and insert into the gap between the tooth blocks on the surface of the linkage gear, so that workers do not need to contact other tools to conduct internal bracing, positioning and locking of workpieces, and meanwhile, the connection of the drive bevel gear and the transmission bevel gear is protected by the circular plate on the upper surface of the central disc, so that tooth jamming caused by waste falling on the connection of the drive bevel gear and the transmission bevel gear is prevented.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional depression of the present utility model;

FIG. 2 is a schematic view of a cross-sectional structure of a drive bevel gear and drive bevel gear connection of the present utility model;

FIG. 3 is a schematic cross-sectional view of a sun gear and linkage gear connection of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 5 is a schematic diagram of the overall cross-sectional front view of the present utility model;

fig. 6 is an enlarged view of the structure of fig. 5B according to the present utility model.

In the figure: 1. a base; 2. a cushion block; 3. a sun gear; 4. a linkage gear; 5. a limit groove; 6. a slide block; 7. a connecting rod; 8. a clamping block; 9. a center plate; 10. a drive bevel gear; 11. a limit rotating wheel; 12. a clamping groove; 13. a drive bevel gear; 14. a displacement rod; 15. a displacement block; 16. and (5) clamping the block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: an anti-deformation clamping tool comprises a base 1, a cushion block 2, a central gear 3, a linkage gear 4, a limit groove 5, a sliding block 6, a connecting rod 7, a clamping block 8, a central disk 9, a drive bevel gear 10, a limit rotating wheel 11, a clamping groove 12, a transmission bevel gear 13, a displacement rod 14, a displacement block 15 and a clamping block 16, wherein the upper surface of the base 1 is connected with the sliding cushion block 2, the inside of the base 1 is provided with the rotating central gear 3, one side of the base 1 is internally provided with the rotating linkage gear 4, the upper surface of the base 1 is provided with the limit groove 5, the upper end of the limit groove 5 is provided with the sliding block 6, the upper end side surface of the sliding block 6 is fixedly connected with the connecting rod 7, the lower surface of one end of the connecting rod 7 is fixedly provided with the clamping block 8, the central gear 3 is in meshed connection with the linkage gear 4, the linkage gear 4 penetrates through the outer side surface of the base 1, the limit groove 5 is of an arc-shaped design, the limit groove 5 is in sliding connection with the sliding block 6, the limit groove 5 and the linkage gear 4 are of a concentric design, the connecting rod 7 is of an arc-shaped design, the connecting rod 7 is in clamping connection with a tooth block on the outer surface of the linkage gear 4 through a clamping block 8, a cushion block 2 at a proper position on the upper surface of the base 1 is slid to an arc inner ring of the base 1 during installation, then a planet carrier workpiece is placed on the upper surface of the cushion block 2, the connecting rod 7 is slid downwards to enable the clamping block 8 to be clamped with the tooth block of the linkage gear 4, the connecting rod 7 is pulled transversely, and the connecting rod 7 slides in the linkage gear 4 through the sliding block 6 and the limit groove 5, so that the linkage gear 4 can rotate and drives the central gear 3 to rotate through meshing with the central gear 3;

the upper surface of the base 1 is provided with a rotating central disk 9, the upper surface of the central gear 3 is fixedly connected with a drive bevel gear 10, the upper surface of the central disk 9 right above the drive bevel gear 10 is provided with a circular plate, the upper surface of the central disk 9 is provided with a rotating limit rotating wheel 11, the upper surface of the base 1 is provided with a clamping groove 12, the upper surface of the central disk 9 is provided with a rotating transmission bevel gear 13, one end of the transmission bevel gear 13 is fixedly connected with a displacement rod 14, the outer surface of the displacement rod 14 is connected with a displacement block 15, the upper end of the displacement block 15 is connected with a clamping block 16, the upper end of the drive bevel gear 10 penetrates through the outer surface of the central disk 9 and is in meshed connection with the transmission bevel gear 13, the transmission bevel gear 13 is in threaded connection with the displacement block 15 through the displacement rod 14, the displacement block 15 is in rotary connection with the clamping block 16, and the displacement block 15 is in sliding connection with the central disk 9, when a planet carrier workpiece is placed on the upper surface of the cushion block 2, the central disk 9 is rotated, the central disk 9 drives the displacement block 15 and the clamping block 16 to rotate to a proper internal supporting position, in the process, the clamping block 16 can rotate to one side to pass through the obstacle when being blocked, then the clamping block 16 is rotated by the friction force at the joint of the rotating shaft of the clamping block 16 and the displacement block 15 to keep vertical, at the moment, the limit rotating wheel 11 is rotated, one narrower end of the limit rotating wheel 11 is rotated out of the clamping groove 12 at the position corresponding to the upper surface of the central disk 9 and the upper surface of the base 1, so that the central disk 9 can not rotate, when the central gear 3 drives the drive bevel gear 10 to rotate, at the moment, the drive bevel gear 10 drives the drive bevel gear 13 to rotate through the meshing of the drive bevel gear 13, the drive bevel gear 13 drives the displacement block 15 and the clamping block 16 to slide on the upper surface of the central disk 9 through the displacement rod 14, the clamping block 16 supports the workpiece from the internal measurement, at this time, the pressing plate is pressed on the surface of the workpiece right above the cushion block 2, so as to reduce the deformation of the workpiece in the processing process.

Working principle: when the anti-deformation clamping tool is used, firstly, a planet carrier workpiece is placed above the cushion block 2, and the linkage gear 4 is driven to rotate through the connecting rod 7, so that the clamping block 16 can support and position the workpiece from the inner measurement, the deformation degree of the workpiece in the machining process is reduced by using the mode that the pressing plate is opposite to the cushion block 2, and the overall practicability is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an anti-deformation centre gripping frock, includes base (1), cushion (2), sun gear (3), linkage gear (4) and spacing groove (5), its characterized in that: the upper surface of base (1) is connected with gliding cushion (2), the internally mounted of base (1) has pivoted sun gear (3), and one side internally mounted of base (1) has pivoted linkage gear (4), spacing groove (5) have been seted up to the upper surface of base (1), slider (6) are installed to the upper end of spacing groove (5), the upper end side fixed surface of slider (6) is connected with connecting rod (7), and the one end lower surface fixed of connecting rod (7) is provided with fixture block (8), the upper surface mounting of base (1) has pivoted center dish (9), the upper surface fixed connection of sun gear (3) has initiative bevel gear (10), and the upper surface of center dish (9) directly over initiative bevel gear (10) is provided with circular shape board, the upper surface mounting of center dish (9) has pivoted spacing runner (11), the draw-in groove (12) have been seted up to the upper surface of base (1), the upper surface mounting of center dish (9) has pivoted drive bevel gear (13), the one end displacement of connecting rod (14) is connected with displacement bevel gear (14), displacement block (15).

2. The anti-deformation clamping tool according to claim 1, wherein: the sun gear (3) is in meshed connection with the linkage gear (4), and the linkage gear (4) penetrates through the outer side surface of the base (1).

3. The anti-deformation clamping tool according to claim 1, wherein: the limiting groove (5) is of an arc-shaped design, the limiting groove (5) is in sliding connection with the sliding block (6), and the limiting groove (5) and the linkage gear (4) are of a concentric design.

4. The anti-deformation clamping tool according to claim 1, wherein: the connecting rod (7) is of an arc-shaped design, and the connecting rod (7) is connected with the tooth block on the outer surface of the linkage gear (4) in a clamping mode through the clamping block (8).

5. The anti-deformation clamping tool according to claim 1, wherein: the upper end of the drive bevel gear (10) penetrates through the outer surface of the central disc (9) and is in meshed connection with the transmission bevel gear (13), and the transmission bevel gear (13) is in threaded connection with the displacement block (15) through the displacement rod (14).

6. The anti-deformation clamping tool according to claim 1, wherein: the displacement block (15) is rotationally connected with the clamping block (16), and the displacement block (15) is slidably connected with the central disc (9).