Floating type rotary part positioning device

Abstract

The utility model provides a floating type rotary part positioning device, which relates to the technical field of machining positioning and comprises a turntable, a plurality of sets of floating positioning devices, floating positioning device lifting floating springs and floating pressure-bearing blocks are uniformly distributed above the turntable, and clamping floating springs are connected with one side of a floating clamping block. A floating plate is arranged below the floating clamping block, a lifting floating spring is connected below the floating plate, the other end of the lifting floating spring is connected with the upper surface of the turntable, so that the floating plate is in a radial floating state, the floating plate and one end of the turntable are vertically connected through a floating pressure-bearing block, and the bottom end surface of the floating pressure-bearing block is in contact with the weighing plate; through the combined design of the lifting floating spring and the floating plate, damage to precise components in a workpiece caused by rigid clamping is avoided, the unlocking air cylinder is not mechanically connected with the floating positioning device, the clamping block is triggered to retract at a specific station through the universal joint and the pull rod, interference during rotation is avoided, and operation risks are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining positioning technical field, concretely relates to a floating type rotary part positioning device. BACKGROUND

[0002] In the field of automatic assembly equipment, the assembly process of shaft rod and rotary parts often needs to be completed by precise positioning and clamping devices. The traditional positioning and clamping devices usually adopt fixed clamping or simple positioning mechanism for the press-fitting operation of rotary parts, and such devices have the following defects: first, the rigid clamping structure lacks buffering function when bearing the pressure of the press, which can easily cause plastic deformation or structural damage of the internal precision components of the positioning structure; second, manual intervention is needed for unlocking operation after the press-fitting is completed, and it is difficult to realize automatic connection in the whole process.

[0003] In view of the problems existing in the above positioning and clamping device, a floating type positioning device for shaft rod and rotary parts is designed, which has up-down floating function to cope with high pressure in the press-fitting process. At the same time, the device can also be unlocked after the press-fitting is completed, so as to ensure that the workpiece can be smoothly taken out. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a floating type rotary part positioning device to solve the problems raised in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a floating type rotary part positioning device, comprising a turntable, a floating positioning device and an unlocking cylinder, characterized in that: a plurality of sets of floating positioning devices are uniformly distributed above the turntable, the floating positioning device comprises a floating clamping block, a clamping floating spring, a floating guide sleeve, a floating plate, a lifting floating spring and a floating pressure block, the clamping floating spring is connected with one side of the floating clamping block, the floating clamping block is provided below the floating plate, the lifting floating spring is connected below the floating plate, the other end of the lifting floating spring is connected with the surface above the turntable, so that the floating plate is in a radial floating state, the floating plate and one end of the turntable are vertically connected through the floating pressure block, and the bottom end face of the floating pressure block is in contact with the weighing plate; the unlocking cylinder is fixed on the cylinder mounting seat outside the turntable 1, and the other side of the clamping floating spring is connected through a pull rod, so that the unlocking cylinder drives the floating clamping block to retract radially to release the workpiece when driven.

[0006] Preferably, the unlocking cylinder is not mechanically connected with the floating positioning device, and the unlocking cylinder only triggers the retraction action of the floating clamping block at a specific work station through the pull rod.

[0007] Preferably, the bottom end face of the floating pressure block is a plane structure, which is driven downward to compress the lifting floating spring under external force during the press-fitting operation, so that the end face and the weighing plate bear all the press-fitting force.

[0008] Preferably, the floating guide sleeve is fixed through the floating plate and the floating pressure block, so that the floating pressure block can move in the vertical direction.

[0009] Preferably, the floating positioning device of the floating clamp spring is a symmetrical butterfly spring group, which provides a radial self-adapting clamping force, and the clamping stroke is controlled by the limit formed by the pull rod.

[0010] Preferably, the unlocking cylinder is connected with the pull rod through the universal joint, so that the pull rod only triggers the unlocking action at the station when the rotary table rotates.

[0011] Preferably, the floating plate is provided with a fixed clamping block at one end and opposite to the floating clamping block, which is used for clamping the workpiece and plays a limiting and fixing role.

[0012] The utility model discloses the beneficial effect is:

[0013] The utility model discloses the combination design of lifting floating spring and floating plate, avoids rigid clamping to cause the damage of the internal precision assembly of workpiece, and unlocking cylinder and floating positioning device are not mechanically connected, and the retracting of clamping block is triggered through the universal joint and pull rod at the specified station, avoids the interference when rotating, ensures that the unlocking action is only executed at the target position, reduces the operation risk, secondly, floating pressure block and lifting floating spring form the vertical buffer structure, and the external force is directly transmitted to the weighing plate through the pressure block plane end face when pressing, avoids the rotary table to be impacted load, prolongs the life of equipment and improves the pressing precision. DRAWINGS

[0014] Fig. 1 It is the whole three-dimensional schematic diagram of the utility model.

[0015] Fig. 2 It is the sectional structure schematic diagram of the utility model.

[0016] The marks of various components in the drawings are as follows: 1, rotary table, 2, floating positioning device, 21, floating clamping block, 22, clamping floating spring, 23, floating guide sleeve, 24, floating plate, 25, lifting floating spring, 26, floating pressure block, 3, unlocking cylinder, 4, cylinder mounting seat, 5, pull rod, 6, universal joint, 7, fixed clamping block, 8, weighing plate, 9, workpiece DETAILED DESCRIPTION

[0017] Although the present utility model can be described in relation to a particular application or industry, those skilled in the art will recognize a broader applicability of the present utility model. Those of ordinary skill in the art will recognize that terms such as: above, below, upward, downward, etc. are used to describe the drawings and are not meant to limit the scope of the present utility model as defined by the appended claims. Any numerical designations such as: first or second are merely illustrative and are not intended to limit the scope of the present utility model in any way.

[0018] The utility model discloses a floating rotary part positioning device as shown in a kind of Figs. 1-2 Floating positioning device 2, unlocking cylinder 3, the rotating disc 1 top is evenly distributed with several sets of floating positioning device 2, each set of floating positioning device 2 includes floating clamping block 21, clamping floating spring 22, floating guide sleeve 23, floating plate 24, lifting floating spring 25 and floating pressure block 26, clamping floating spring 22 is connected with one side of floating clamping block 21, clamping floating spring 22 is symmetrically arranged butterfly spring group, provides radial self-adapting clamping force, to drive floating clamping block 21 to move radially, floating plate 24 is provided below floating clamping block 21, lifting floating spring 25 is connected below floating plate 24, the other end of lifting floating spring 25 is connected with the surface above rotating disc 1, so that floating plate 24 is in radial floating state, when pressure operation is carried out, its lifting floating spring 25 plays the role of buffer, floating plate 24 and rotating disc 1 one end are vertically connected by floating pressure block 26, the bottom end surface of floating pressure block 26 is in contact with weighing plate 8, the bottom end surface of floating pressure block 26 is plane structure, under the effect of pressure installation, driven by external force to compress lifting floating spring 25 downwards, so that end surface is in contact with weighing plate 8 and bears all pressure installation force, floating guide sleeve 23 penetrates floating plate 24 and is fixed in floating pressure block. Ensure that floating pressure block 26 can move along vertical direction, one end above floating plate 24 and opposite floating clamping block 21 are provided with fixed clamping block 7, for clamping workpiece, play the role of limiting and fixing, ensure that workpiece 9 does not deviate during processing process;

[0019] Unlocking cylinder 3 is fixed on the cylinder mounting seat 4 outside rotating disc 1, is connected with clamping floating spring 22 through pull rod 5, when unlocking cylinder 3 drives, pull rod 5 pulls clamping floating spring 22, so that floating clamping block 21 is retracted radially, to release workpiece 9, unlocking cylinder 3 and floating positioning device 2 are not mechanically connected, only through pull rod 5 to trigger the retraction action of floating clamping block 21 in specific work station, unlocking cylinder 3 and pull rod 5 are connected through universal joint 6, ensure that rotating disc 1 rotates, pull rod 5 only triggers unlocking action in specific work station, avoid misoperation.

[0020] Working principle: workpiece placement stage, the rotating disc 1 rotates to the loading and unloading station, the unlocking cylinder 3 starts, the universal joint 6 pushes the pull rod 5 to retract, through the connecting rod mechanism drives the floating clamping block 21 to overcome the elastic force of the clamping floating spring 22 to retreat radially, the clamping jaw opens, the operator places the workpiece 9 on the upper end surface of the floating pressure block 26, the unlocking cylinder 3 resets, the pull rod 5 releases, the clamping floating spring 22 pushes the clamping 21 to clamp the workpiece 9 radially, the pressing and assembling operation stage, the rotating disc 1 carries the workpiece 9 to move to the pressing and assembling station, when the external pressing head presses the workpiece 9, the floating pressure block 26 is pressed downward, the lower end surface of the floating pressure block 26 is attached to the weighing plate 8, the lifting floating spring 25 is attached to the floating plate, at this time the pressing and assembling force is completely borne by the weighing plate 8, and when the floating pressure block 26 is pressed downward, the lifting floating spring 25 and the rotating disc 1 and the floating plate 24 are buffered, the positioning accuracy of the rotating disc 1 is avoided from being affected by stress deformation, and the floating positioning device 2 can be uniformly arranged on the rotating disc 1 several sets, and the unlocking cylinder does not need to rotate with the rotating disc, and only needs to be arranged with a set at a specific station to realize unlocking.

[0021] The above-described embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A floating rotary part positioning device comprising a turntable (1), a floating positioning device (2), an unlocking cylinder (3), characterized in that: The rotary table (1) is evenly distributed with several sets of floating positioning device (2), the floating positioning device (2) includes floating clamping block (21), clamping floating spring (22), floating guide sleeve (23), floating plate (24), lifting floating spring (25) and floating pressure block (26), the clamping floating spring (22) is connected with one side of the floating clamping block (21), the floating clamping block (21) is provided with the floating plate (24) below, the floating plate (24) is connected with the lifting floating spring (25) below, the other end of the lifting floating spring (25) is connected with the upper surface of the rotary table (1), so that the floating plate (24) is in a radial floating state, the floating plate (24) and the rotary table (1) are vertically connected by the floating pressure block (26), and the bottom end face of the floating pressure block (26) is in contact with the weighing plate (8); the unlocking cylinder (3) is fixed on the cylinder mounting seat (4) outside the rotary table (1), and the other side of the clamping floating spring (22) is connected through the pull rod (5), so that the unlocking cylinder (3) drives the floating clamping block (21) to retract radially to release the workpiece (9).

2. A floating rotary part positioning device as claimed in claim 1, characterized in that: The unlocking cylinder (3) is not mechanically connected with the floating positioning device (2), and the unlocking cylinder (3) only triggers the retraction action of the floating clamping block (21) at the loading and unloading station through the pull rod (5).

3. A floating rotary part positioning device as in claim 1, wherein: The bottom end face of the floating pressure block (26) is a plane structure, the lifting floating spring (25) is driven to compress downward under external force during pressing operation, so that the end face bears all pressing forces with the weighing plate (8).

4. A floating rotary part positioning device as in claim 1, wherein: The floating guide sleeve (23) penetrates the floating plate (24) and is fixed with the floating pressure block (26), so that the floating pressure block (26) can move in the vertical direction.

5. A floating rotary part positioning device as in claim 1, wherein: The clamping floating spring (22) in each set of floating positioning device (2) on the rotary table (1) is a symmetrical butterfly spring group, which provides a radial self-adaptive clamping force.

6. A floating rotary part positioning device as in claim 1, wherein: The unlocking cylinder (3) and the pull rod (5) are connected through the universal joint (6).

7. A floating rotary part positioning device as in claim 1, wherein: The floating plate (24) is provided with a fixed clamping block (7) on one end of the upper side and the opposite side of the floating clamping block (21), which is used for clamping the workpiece (9) to limit and fix the workpiece (9).

Images