CN216326133U

CN216326133U - Positioning device

Info

Publication number: CN216326133U
Application number: CN202122820186.3U
Authority: CN
Inventors: 郑达明; 许献国; 潘晨威
Original assignee: Add Industry Zhejiang Corp ltd
Current assignee: Add Industry Zhejiang Corp ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-19
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the technical field of positioning tools, in particular to a positioning device. The clamp core rod is matched with the inner expansion clamp, the profiling die is matched with the inner expansion clamp, and the inner expansion clamp is connected with an output shaft of the driving part; also included is a first fixture assembly for mating with the masterform, and a second fixture assembly for applying pressure. Aiming at the technical problem that the irregular workpieces are difficult to keep positioning, the utility model realizes the mutual positioning of the irregular workpieces when the irregular workpieces form a certain included angle.

Description

Positioning device

Technical Field

The utility model relates to the technical field of positioning tools, in particular to a positioning device.

Background

The mechanical processing can involve assembly processing of workpieces, particularly welding processing, a certain angle requirement is met between the workpieces, positioning between the workpieces is easy to achieve for the workpieces in regular shapes in the welding processing, when the workpieces are irregular in shape, particularly when a welding surface is irregular, the positioning difficulty between the workpieces is higher, welding effect is poor, the qualified rate is low, and even performance of the workpieces after assembly is affected.

For example, in the process of manufacturing the shock absorber, the cylinder body of the shock absorber needs to be welded with the spring disc, the included angle between the shock absorber and the spring disc in the suspension system has a fixed requirement, and because the shape of the spring disc is irregular, the spring disc is not easy to clamp and fix, the relative position between the cylinder body and the spring disc is also inconvenient to fix, the cylinder body and the spring disc are difficult to position easily, and welding is inconvenient. The welding defect rate is high after welding, the cylinder body and the spring disc of the shock absorber and the angle have large errors, abnormal sound exists between a vehicle body and a suspension system in the running process of a vehicle, and the best shock absorption performance of the shock absorber is not easy to exert.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved by the utility model

Aiming at the technical problem that the irregular workpieces are difficult to keep positioning, the utility model provides a positioning device which realizes the mutual positioning of the irregular workpieces when the irregular workpieces form a certain included angle by utilizing the self structure.

Technical scheme

In order to solve the problems, the technical scheme provided by the utility model is as follows:

a positioning device comprises a profiling die, an internal expansion chuck and a chuck core rod, wherein the chuck core rod is matched with the internal expansion chuck, the profiling die is matched with the internal expansion chuck, and the internal expansion chuck is connected with an output shaft of a driving part; the first fixing component is matched with the profiling mould, and the second fixing component is used for applying pressure; the profiling die, the driving part, the first fixing component and the second fixing component are all arranged on the rack.

Optionally, the first fixing assembly comprises a driving member, a first stop block is arranged at an end of the driving member, and the first stop block is matched with the profiling die.

Optionally, the second fixing assembly comprises a bracket, and a positioning block is arranged on the bracket.

Optionally, the positioning block and the bracket are fixed by a bolt.

Optionally, the circumference array of the end part of the internal expansion chuck is provided with valve blocks, gaps exist between the valve blocks, a movable cavity is arranged in the internal expansion chuck, the valve blocks are close to one end of the movable cavity and provided with a first inclined plane, the chuck core rod is movably matched with the movable cavity, and the first inclined plane is used for abutting against the end part of the chuck core rod.

Optionally, the chuck mandrel comprises a cylinder, the cylinder is movably matched with the movable cavity, one end of the cylinder is fixed to the output shaft of the driving portion, a tapered portion is arranged at the other end of the cylinder, the diameter of the tapered portion, close to one end of the cylinder, is smaller than the diameter of the tapered portion, away from the cylinder, and the tapered portion is matched with the first inclined surface.

Optionally, the rack includes a second bottom plate, an adapting hole is provided on the second bottom plate, an adapting portion is provided at an end of the internal expansion chuck, and the adapting hole is matched with the adapting portion.

Optionally, the rack further includes a first bottom plate, and a guide pillar is disposed between the first bottom plate and the second bottom plate.

Optionally, a first mounting hole is provided on the masterform.

Optionally, the driving part is an air cylinder, and an output shaft of the air cylinder is fixedly connected with the chuck core rod.

Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

aiming at the technical problem that the irregular workpieces are difficult to keep positioning, the utility model realizes the mutual positioning of the irregular workpieces when the irregular workpieces form a certain included angle.

Drawings

Fig. 1 is a schematic structural diagram of a positioning device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a masterform according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of an internal expansion chuck according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a chuck core rod according to an embodiment of the present invention.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.

Example 1

With reference to fig. 1-4, this embodiment provides a positioning apparatus, which includes a profiling die 102, an internal expansion chuck 105, and a chuck core rod 106, where the chuck core rod 106 is matched with the internal expansion chuck 105, the profiling die 102 is matched with the internal expansion chuck 105, and the internal expansion chuck 105 is connected to an output shaft of a driving portion 111; further comprising a first fixing assembly for cooperating with the masterform 102, and a second fixing assembly for applying pressure; the profiling die, the driving part, the first fixing component and the second fixing component are all arranged on the rack.

The positioning device of the embodiment can be used for positioning between the cylinder body and the spring disc of the shock absorber and fixing the relative position so as to facilitate further subsequent processing such as welding and the like.

In this embodiment, the shape of the dummy 102 is adapted to the irregular workpiece, for example, in the welding process of the spring disc and the damper cylinder, the dummy 102 is adapted to the spring disc for loading the spring disc, and after the spring disc is loaded in the dummy 102, the first fixing component can tightly press the spring disc against the dummy 102 to achieve complete fixing of the spring disc. The first fixed subassembly of this embodiment can be the dog that is driven by cylinder, electricity jar, pneumatic cylinder etc. and the dog is along with the output shaft activity of driving pieces such as cylinders to the realization is to the fixed of spring holder.

In the present embodiment, the workpiece is fixed by the cooperation of the inner expansion clamp 105 and the clamp mandrel 106, for example, in the welding process of the spring disc and the damper cylinder, the damper cylinder can be fixed by the cooperation of the inner expansion clamp 105 and the clamp mandrel 106. In this embodiment, since the collet mandrel 106 can move relative to the inner expansion collet 105 in accordance with the movement of the output shaft of the driving portion 111, the end portion of the inner expansion collet 105 of this embodiment is multi-lobed, and the end portion of the collet mandrel 106 is tapered, so that when the tapered end portion of the collet mandrel 106 and the end portion of the inner expansion collet 105 which is multi-lobed move relative to each other, the tapered end portion can expand the end portion of the inner expansion collet 105 to change the volume thereof, thereby fixing the damper cylinder. The driving part 111 of the present embodiment may be a driving member such as an electric cylinder, an air cylinder, or the like.

The second fixing assembly in this embodiment is configured to provide axial pressure, and when the second fixing assembly is applied to a shock absorber cylinder, the cylinder can be kept fixed, and one conceivable embodiment of the second fixing assembly includes a fixing frame, an end block is disposed on the fixing frame, the end block can be fixed at any position on the fixing frame, when the shock absorber cylinder needs to be clamped, the end block is adjusted to a proper position and fixed, and the end block and the shock absorber cylinder tightly abut against each other, so that the shock absorber cylinder is fixed.

As an alternative embodiment of this embodiment, the first fixing assembly includes a driving member 103, a first stop 104 is disposed at an end of the driving member 103, and the first stop 104 is matched with the dummy 102. In this embodiment, when the spring holder is loaded on the dummy 102, the driving member 103 can drive the first stopper 104 to move, and the position and shape of the first stopper 104 match the position of the dummy 102 and the shape of the workpiece. Taking the assembly of the spring disc and the damper cylinder as an example, the first stopper 104 is matched with the shape of the spring disc, is driven by the driving part 103, and is pressed on the spring disc so as to realize the pressing and fixing of the spring disc. The driving member 103 may be a driving device such as an air cylinder, an electric cylinder, a hydraulic cylinder, etc.

As an optional implementation manner of this embodiment, the second fixing assembly includes a bracket 107, and a positioning block 109 is disposed on the bracket 107. In an embodiment, when the damper cylinder needs to be clamped, the positioning block 109 is adjusted to a suitable position and fixed, and the positioning block 109 is tightly abutted against the damper cylinder, so that the damper cylinder can be fixed.

As an optional implementation manner of this embodiment, the positioning block 109 and the bracket 107 are fixed by a latch. In this embodiment, a preferred embodiment between the positioning block 109 and the bracket 107 is shown, the bracket 107 may be provided with a plurality of holes at different positions, and the positioning block 109 may be fixed on the bracket 107 by inserting a pin through the holes.

As an optional implementation manner of this embodiment, the circumferential array of the end portion of the internal expansion chuck 105 is provided with flaps 113, a gap exists between the flaps 113, a movable cavity 114 is provided in the internal expansion chuck 105, one end of the flap 113 close to the movable cavity 114 is provided with a first inclined surface 115, the mandrel 106 is movably matched with the movable cavity 114, and the first inclined surface 115 is used for abutting against the end portion of the mandrel 106. In this embodiment, which is a preferred embodiment of the internally expanding collet 105, the flaps 113 circumferentially arranged at the end of the internally expanding collet 105 can abut against the end of the mandrel 106, and the flaps 113 deform outward when receiving an acting force generated by the abutment of the end of the mandrel 106, so as to expand the end of the internally expanding collet 105, and the cylinder can be fixed by the expansion of the end of the internally expanding collet 105. The movable cavity 114 is provided for guiding the collet mandrel 106 so as to uniformly deform the petals 113 in the circumferential direction.

Example 2

The embodiment proposes a positioning device, which can be improved based on embodiment 1 as follows: the chuck core rod 106 comprises a cylinder 116, the cylinder 116 is movably matched with the movable cavity 114, one end of the cylinder 116 is fixed with an output shaft of the driving part 111, a taper part 117 is arranged at the other end of the cylinder 116, the diameter of the taper part 117 close to one end of the cylinder 116 is smaller than that of the taper part in the direction far away from the cylinder 116, and the taper part 117 is matched with the first inclined surface 115. In this embodiment, a preferred embodiment of the mandrel 106 is that the mandrel 106 is fixed to the driving portion 111 by using one end of the cylinder 116, and the cylinder 116 is engaged with the movable cavity 114 to limit the movement. The other end of the cylinder 116 is matched with the inner expansion chuck 105 by the taper portion 117, that is, the valve 113 is deformed outward by the acting force generated by the abutment by the contact between the taper portion 117 and the first inclined surface 115, so as to fix the cylinder.

As an optional implementation manner of this embodiment, the frame includes a second bottom plate 100, an adapting hole is provided on the second bottom plate 100, an adapting portion is provided at an end of the internal expansion chuck 105, and the adapting hole is matched with the adapting portion. In this embodiment, the fitting hole is preferably a threaded hole, and the fitting portion is preferably a stud adapted to the threaded hole, and the stud and the threaded hole are matched to realize the fixed assembly between the internal expansion chuck and the second base plate 100.

As an optional implementation manner of this embodiment, the rack further includes a first bottom plate 100, and a guide post 112 is disposed between the first bottom plate 100 and the second bottom plate 101. The first bottom plate 100 and the second bottom plate 101 are fixed by the guide posts, and the first bottom plate 100 and the second bottom plate 101 can be separated by a certain distance to satisfy the moving stroke of the chuck core rod 106.

As an alternative embodiment of this embodiment, the dummy mold 102 is provided with a first mounting hole. The first mounting hole is a through hole in the dummy mold 102, and in this embodiment, the fitting between the through hole and the bolt can be used to fix the dummy mold 102 to the main structure of the positioning device such as the rack.

With reference to the foregoing embodiment, a second mounting hole may be formed in the second base plate 101, the second mounting hole is a through hole formed in the second base plate 101, the first mounting hole is matched with the second mounting hole, and the assembling and fixing of the profiling die 102 may be achieved through a connecting member such as a bolt and a plug.

In an alternative embodiment of this embodiment, the driving portion 111 is an air cylinder, and the output shaft of the air cylinder is fixedly connected to the chuck core rod 106. In this embodiment, the driving portion 111 is preferably an air cylinder, and an output shaft of the air cylinder is connected to one end of the chuck core rod 106, so as to achieve the effect of driving the chuck core rod 106 to move by the air cylinder. The cylinder is easy to operate and control, has good stability, and is the preferred scheme of the driving part 111.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims

1. A positioning device is characterized by comprising a profiling die, an internal expansion chuck and a chuck core rod, wherein the chuck core rod is matched with the internal expansion chuck, the profiling die is matched with the internal expansion chuck, and the internal expansion chuck is connected with an output shaft of a driving part;

the first fixing component is matched with the profiling mould, and the second fixing component is used for applying pressure;

the profiling die, the driving part, the first fixing component and the second fixing component are all arranged on the rack.

2. A positioning device as set forth in claim 1 wherein said first fixing assembly includes a driving member having a first stop disposed at an end thereof, said first stop being adapted to mate with said pattern.

3. The positioning device as claimed in claim 1, wherein the second fixing assembly comprises a bracket, and a positioning block is disposed on the bracket.

4. The positioning device as claimed in claim 3, wherein the positioning block is fixed to the bracket by a bolt.

5. The positioning device according to claim 1, wherein the circumferential array of the end portion of the inner expansion chuck is provided with petals, gaps exist between the petals, a movable cavity is arranged in the inner expansion chuck, one end of each petal close to the movable cavity is provided with a first inclined surface, the chuck core rod is movably matched with the movable cavity, and the first inclined surface is used for abutting against the end portion of the chuck core rod.

6. The positioning device as set forth in claim 5, wherein the chuck core rod includes a cylinder movably engaged with the movable cavity, one end of the cylinder is fixed to the output shaft of the driving part, the other end of the cylinder is provided with a tapered portion, a diameter of the tapered portion near the one end of the cylinder is smaller than a diameter of the tapered portion away from the cylinder, and the tapered portion is engaged with the first inclined surface.

7. The positioning device as set forth in claim 1, wherein the frame includes a second bottom plate, the second bottom plate having an adapter hole, the end of the inner expansion chuck having an adapter portion, the adapter hole being matched with the adapter portion.

8. The positioning device as set forth in claim 7, wherein said frame further comprises a first base plate, and a guide post is disposed between said first base plate and said second base plate.

9. A positioning device according to claim 1, characterized in that the former is provided with a first mounting hole.

10. The positioning device as set forth in claim 1 wherein said drive means is an air cylinder, and said air cylinder output shaft is fixedly connected to said chuck core rod.