CN218904484U

CN218904484U - Bevel gear adds clamping apparatus

Info

Publication number: CN218904484U
Application number: CN202223291129.1U
Authority: CN
Inventors: 伍亮亮
Original assignee: Quanzhou Bocheng Huali Cnc Equipment Co ltd
Current assignee: Quanzhou Bocheng Huali Cnc Equipment Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-25
Anticipated expiration: 2032-12-08

Abstract

The utility model is applicable to the technical field of clamps, and provides a bevel gear machining clamp which comprises a base plate, a clamping head, an expansion sleeve and a guide sleeve, wherein an annular supporting ring for supporting a bevel gear is fixedly connected to the center of the top of the base plate, a plurality of guide sleeves are fixedly connected to the top of the base plate and positioned on the outer ring of the supporting ring, and movable rods capable of axially moving along the guide sleeves are arranged in the guide sleeves in a penetrating manner. This bevel gear adds clamping apparatus, through setting up the chuck that blocks bevel gear terminal surface and follow the cover that rises of inside fixed bevel gear, press from both sides tight bevel gear different positions in different processing procedures respectively, can use one set of anchor clamps to realize the clamping under the different processing conditions fixed, need not use two lathes or two sets of anchor clamps to carry out clamping, processing to bevel gear, one lathe one set of anchor clamps can realize the processing of twice processing procedures, once the clamping can accomplish the processing, need not repeat the dismouting, easy operation shortens process time, improves production efficiency.

Description

Bevel gear adds clamping apparatus

Technical Field

The utility model belongs to the technical field of clamps, and particularly relates to a bevel gear machining clamp.

Background

Bevel gears are also called bevel gears, and are widely applied to industrial speed reducers, printing equipment, automobile differentials, rail transit and aviation, and can be widely applied to locomotives, ships, power plants, steel mills, railway tracks and the like.

Because the special shape of bevel gear need be processed respectively to its interior anchor clamps, terminal surface and outer ring face during processing, in current processing technology, need use lathe tailstock and main shaft to prop up tight hole during processing terminal surface and fix, need prop up tight gear terminal surface during processing interior anchor clamps, therefore during processing, generally need two lathes or be equipped with the lathe of two kinds of different anchor clamps and carry out clamping, the processing of two processes respectively, can't once the clamping accomplish two processing processes, need frequent dismouting, the operation is comparatively complicated, the process time is long.

Disclosure of Invention

The utility model provides a bevel gear machining clamp, and aims to solve the problems that two lathes or lathes provided with two different clamps are generally required to be machined twice during machining, two machining procedures cannot be completed through one clamping, frequent disassembly and assembly are required, the operation is complex and the machining time is long.

The utility model discloses a bevel gear machining clamp, which comprises a base plate, a clamping head, an expansion sleeve and a guide sleeve, wherein an annular supporting ring used for supporting a bevel gear is fixedly connected to the center of the top of the base plate, a plurality of guide sleeves are fixedly connected to the top of the base plate and positioned on the outer ring of the supporting ring, a movable rod capable of axially moving along the guide sleeve is arranged in the guide sleeve in a penetrating manner, the movable rod is guided by the guide sleeve to rotate when moving in the guide sleeve, the clamping head is fixedly connected to the outer end of the movable rod, and the expansion sleeve is positioned in a cavity of the supporting ring and can axially move along the supporting ring.

Preferably, the base plate is of a hollow structure, and a first driving piece for driving the movable rod to move in the linear direction and a second driving piece for driving the expansion sleeve to move in the linear direction are arranged in the base plate.

Preferably, the first driving piece and the second driving piece are hydraulic push rods, and the bottom end of the movable rod is rotatably connected with the output end of the first driving piece through a bearing.

Preferably, the guide sleeve is of a cylindrical structure, guide rods distributed along the radial direction of the guide sleeve are symmetrically and fixedly connected to two sides of the inner wall surface, arc-shaped guide grooves are formed in two sides of the surface of the movable rod, and the end part of each guide rod is slidably clamped and embedded into one guide groove.

Preferably, straight grooves distributed along the length direction of the movable rod are formed in the surface of the movable rod and located at two ends of the guide groove.

Preferably, the bottom of the base plate is fixedly provided with a base plate.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the bevel gear machining clamp, the clamping heads for clamping the end faces of the bevel gears and the expansion sleeves for fixing the bevel gears from the inside are arranged, so that the bevel gears are clamped at different positions in different machining processes, one clamp can be used for clamping and fixing the bevel gears in different machining states, two lathe beds or two clamps are not required for clamping and machining the bevel gears, one lathe clamp can be used for machining the bevel gears in two machining processes, machining can be completed in one clamping process, repeated disassembly and assembly are not required, the operation is simple, the machining time is shortened, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of the expansion joint of the present utility model when it is extended;

fig. 4 is a schematic cross-sectional view of a guide sleeve and a movable rod according to the present utility model.

In the figure: 1-base plate, 2-support ring, 3-guide sleeve, 31-guide rod, 4-movable rod, 41-guide groove, 5-chuck, 6-expansion sleeve and 7-chassis.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the bevel gear machining clamp comprises a base plate 1, a clamping head 5, an expansion sleeve 6 and a guide sleeve 3, wherein an annular supporting ring 2 for supporting a bevel gear is fixedly connected to the center of the top of the base plate 1.

The supporting ring 2 is used for placing the bevel gear, the top of the inner ring is a conical surface, and the bevel gear is convenient to place.

The top of base plate 1 just is located the outer lane fixedly connected with a plurality of uide bushing 3 of holding ring 2, run through in the uide bushing 3 and be provided with can follow uide bushing 3 axial motion's movable rod 4, movable rod 4 receive when uide bushing 3 internal motion receives the direction of uide bushing 3 produces rotatoryly, chuck 5 fixed connection in the outer end of movable rod 4.

The movable rod 4 can extend out of or retract into the guide sleeve 3 so as to drive the clamping head 5 to extend out of or retract into the guide sleeve, as shown in fig. 1, when the movable rod 4 is in the retracted state, the clamping head 5 rotates inwards to be located above the top end of the support ring 2 and is used for pressing a bevel gear placed on the support ring 2, and a plurality of clamping heads 5 press the bevel gear from the end parts so as to process an inner hole.

When the fixation of the end face of the bevel gear needs to be released, the movable rod 4 extends outwards, the guide sleeve 3 is guided to rotate in the extending process, the chuck 5 is driven to rotate outwards, the chuck 5 rotates outwards, the end face or the outer ring face of the bevel gear is not affected, and as shown in fig. 3, the movable rod 4 extends and the chuck 5 rotates to an outwards position.

The end face of the chuck 5 can be an inclined plane, so that bevel gears with different outer diameter sizes can be conveniently clamped.

The rotation angle of the movable lever 4 is not less than 90 degrees, preferably 180 degrees or an integer multiple of 180 degrees.

The expansion sleeve 6 is positioned in the cavity of the support ring 2 and can move along the axial direction of the support ring 2.

In the present embodiment, the expansion sleeve 6 is a conventional one, and can be expanded outward to be fixed from the inner ring of the annular member.

When the inner ring surface of the bevel gear is processed, the expansion sleeve 6 is contracted inwards and is not positioned in the supporting ring 2, namely, the expansion sleeve 6 is not positioned in the inner ring surface of the bevel gear, the inner ring surface processing is not affected, after the inner ring surface of the bevel gear is processed, the expansion sleeve 6 stretches out and expands tightly, the bevel gear is fixed from the inside, the movable rod 4 stretches out again at the moment, the clamping head 5 is far away from the supporting ring 2 and the bevel gear, and at the moment, the outer ring surface of the end surface of the bevel gear can be processed, as shown in fig. 3.

Further, the base plate 1 is of a hollow structure, and a first driving piece for driving the movable rod 4 to move in a linear direction and a second driving piece for driving the expansion sleeve 6 to move in a linear direction are arranged in the base plate.

The first driving piece and the second driving piece are hydraulic push rods, and the bottom end of the movable rod 4 is rotatably connected with the output end of the first driving piece through a bearing.

In the embodiment, the movable rod 4 and the expansion sleeve 6 are moved to stretch and retract through the hydraulic push rod, so that the device is quick and sensitive. Because the movable rod 4 needs to rotate, the movable rod 4 is in rotary connection with the hydraulic push rod, and can be guided by the guide sleeve 3 to rotate simultaneously when being pushed and pulled by the hydraulic push rod to move along the axial direction of the movable rod, so that the movable rod 4 and the hydraulic push rod can not interfere with each other.

Further, the guide sleeve 3 has a cylindrical structure, guide rods 31 radially distributed along the guide sleeve are symmetrically and fixedly connected to two sides of the inner wall surface, two sides of the surface of the movable rod 4 are provided with arc-shaped guide grooves 41, and the end part of each guide rod 31 is slidably clamped and embedded into one guide groove 41.

In this embodiment, the guide groove 41 is arc-shaped and inclined to match the arc-shaped surface of the movable rod 4, when the movable rod 41 moves upward to enable the guide rod 31 to be located at the lower end of the guide groove 41, the chuck 5 rotates to the outside, and when the movable rod 41 moves downward to enable the guide rod 31 to be located at the upper end of the guide groove 41, the chuck 5 rotates to the inside.

The angle and length of the guide slot 41 ensures that the chuck 5 switches between the inward and outward states.

Further, straight grooves distributed along the length direction of the movable rod 4 are formed on the surface of the movable rod 4 and at two ends of the guide groove 41.

In this embodiment, the guide groove 41 is disposed on the guide rod, and two ends of the guide groove 41 are respectively connected with the straight groove, so that the guide rod 31 enters into one straight groove after being separated from the guide groove 41, when the movable rod 41 continues to push and pull to extend or retract, the movable rod 41 can rotate inwards or outwards after the chuck 5 rotates to ensure that the angle is unchanged, and simultaneously continues to extend or retract, and can linearly move for a certain distance, that is, when the movable rod 4 extends outwards, the movable rod 4 and the chuck 5 rotate for a certain angle and do not rotate, but still can continue to extend outwards, and keep away from the bevel gear or the supporting ring 2 as far as possible, so that the new bevel gear can be conveniently disassembled or the bevel gear outer ring can be conveniently machined, and interference can not be generated; in the inward shrinking process of the movable rod 4 and the clamping head 5, the movable rod 4 and the clamping head 5 do not rotate after rotating inwards for a certain angle, and can also shrink inwards for a certain distance in a linear motion manner, so that the linear motion of the clamping head 5 can be kept under the condition of inwards shrinking, and bevel gears with different thicknesses can be adapted.

Further, a chassis 7 is fixedly installed at the bottom of the base plate 1. The chassis 7 is provided with a mounting structure which is convenient for mounting the device to the main shaft of a lathe and other positions.

The working principle and the using flow of the utility model are as follows: after the utility model is installed, the movable rod 4 is in an extending state, the expansion sleeve 6 is in a shrinking state, the bevel gear is placed on the supporting ring 2, the movable rod 4 is internally driven to shrink inwards and rotate, the chuck 5 is driven to rotate inwards and tightly prop against the end face of the bevel gear, the inner ring face can be processed, after the inner ring face of the bevel gear is processed, the expansion sleeve 6 extends out and tightens, the bevel gear is fixed from the inside, at the moment, the movable rod 4 extends out again, the chuck 5 is far away from the supporting ring 2 and the bevel gear, at the moment, the outer ring face of the end face of the bevel gear can be processed, and after the processing is finished, the expansion sleeve 6 is tightened and shrunk inwards, and then the bevel gear can be taken down and clamped into the new bevel gear.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a bevel gear adds clamping apparatus which characterized in that: including base plate (1), dop (5), cover (6) and uide bushing (3) rise, the center department fixedly connected with annular support circle (2) that are used for supporting bevel gear at base plate (1) top, the top of base plate (1) just is located outer lane fixedly connected with a plurality of uide bushing (3) of support circle (2), run through in uide bushing (3) and be provided with can follow movable rod (4) of uide bushing (3) axial motion, movable rod (4) receive when uide bushing (3) internal motion the direction of uide bushing (3) produces rotatoryly, dop (5) fixedly connected with the outer end of movable rod (4), cover (6) rise be located in the cavity of support circle (2) and can follow axial motion of support circle (2).

2. A bevel gear machining fixture as claimed in claim 1 wherein: the base plate (1) is of a hollow structure, and a first driving piece for driving the movable rod (4) to move in the linear direction and a second driving piece for driving the expansion sleeve (6) to move in the linear direction are arranged in the base plate.

3. A bevel gear machining fixture as claimed in claim 2 wherein: the first driving piece and the second driving piece are hydraulic push rods, and the bottom end of the movable rod (4) is rotatably connected with the output end of the first driving piece through a bearing.

4. A bevel gear machining fixture as claimed in claim 1 wherein: the guide sleeve (3) is of a cylindrical structure, guide rods (31) distributed along the radial direction of the guide rods are symmetrically and fixedly connected to the two sides of the inner wall surface, arc-shaped guide grooves (41) are formed in the two sides of the surface of the movable rod (4), and the end parts of each guide rod (31) are slidably clamped and embedded into one guide groove (41).

5. A bevel gear machining fixture as claimed in claim 4 wherein: straight grooves distributed along the length direction of the movable rod (4) are formed in the surface of the movable rod (4) and located at two ends of the guide groove (41).

6. A bevel gear machining fixture as claimed in claim 1 wherein: the bottom of the base plate (1) is fixedly provided with a base plate (7).