CN114083487A

CN114083487A - Press mounting equipment

Info

Publication number: CN114083487A
Application number: CN202111458535.XA
Authority: CN
Inventors: 刘金涛; 蒋建勇
Original assignee: Royal Automotive Equipment Industry Kunshan Co ltd
Current assignee: Royal Automotive Equipment Industry Kunshan Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-02-25

Abstract

The invention belongs to the technical field of press-fitting mechanical equipment, and discloses press-fitting equipment which comprises a moving seat, a first driving device, a pressure head assembly and a base. One end of the movable seat is provided with a workpiece mounting position, one end of the workpiece is fixedly arranged as a fixed end, and the other end of the workpiece is abutted against the workpiece mounting position; the first driving device comprises a first output end moving along the linear direction, and the first driving device is fixedly arranged at the other end of the moving seat; the first output end drives the press head assembly to move towards the workpiece mounting position direction so as to press the bushing into the workpiece; the moving seat is installed on the base and can move linearly on the base, and the moving direction of the moving seat is parallel to the pressing direction of the pressure head assembly. The press fitting equipment is high in flexibility, can effectively avoid stress deformation of workpieces in the press fitting process, effectively improves and ensures press fitting production quality, and is suitable for production of products with different sizes.

Description

Press mounting equipment

Technical Field

The invention relates to the technical field of press-fitting mechanical equipment, in particular to press-fitting equipment.

Background

At present, the existing press-fitting equipment generally uses a hydraulic oil cylinder as a pressure driving power source, the press-fitting equipment is large and complex in overall structure, the whole press-fitting equipment cannot be movably adjusted, the press-fitting equipment cannot adapt to the change of the dimensional tolerance of press-fitting products, the press-fitting products are easy to deform, and the press-fitting production precision is low, so that the reject ratio of the press-fitting products is increased, and the press-fitting production progress is influenced.

Disclosure of Invention

The invention aims to provide press-fitting equipment to solve the problems of deformation and low press-fitting precision of press-fitting workpieces.

In order to achieve the purpose, the invention adopts the following technical scheme:

a press-fitting apparatus comprising:

the device comprises a movable seat, a workpiece mounting position is arranged at one end of the movable seat, one end of a workpiece is fixedly arranged as a fixed end, and the other end of the workpiece is abutted against the workpiece mounting position;

the first driving device comprises a first output end moving along a linear direction, and the first driving device is fixedly arranged at the other end of the moving seat;

the pressing head assembly is fixedly connected with the first output end, the bushing is sleeved on the pressing head assembly, and the first output end drives the pressing head assembly to move towards the workpiece mounting position so as to press the bushing into the workpiece;

the base, remove the seat install in on the base, it can to remove the seat linear movement on the base, the moving direction that removes the seat with the direction of impressing of pressure head subassembly is parallel.

Optionally, the base comprises:

a base plate;

the second driving device is fixedly arranged on the bottom plate and comprises a second output end for rotary output;

the ball screw is fixedly connected with the second output end;

and the ball screw nut is arranged on the bottom surface of the movable seat and is in threaded connection with the ball screw.

Optionally, the second driving device is a motor.

Optionally, a plurality of roller seats are uniformly distributed on the base, and the plurality of roller seats are abutted to the bottom surface of the moving seat.

Optionally, two supporting rails are arranged on the bottom surface of the moving seat at intervals, and the roller seat is abutted to the supporting rails.

Optionally, a plurality of stop members are arranged on the base, and the stop members are distributed on two sides of the movable seat.

Optionally, the pressure head assembly comprises a sensor, a floating joint and a pressure head which are fixedly connected in sequence, the sensor is connected with the first output end, and the bushing is sleeved on the pressure head.

Optionally, a sliding rail is arranged on the movable seat, and the floating joint is slidably connected with the sliding rail.

Optionally, the workpiece mounting station comprises a support seat with a hollow interior, and the workpiece abuts against the support seat.

Optionally, the first drive means is an electric cylinder.

The invention has the beneficial effects that:

the movable seat of the press-fitting equipment can be movably adjusted, and can be moved to a proper position before press-fitting, so that a workpiece is just abutted against the workpiece mounting position for press-fitting, and the situation that the workpiece is not abutted against the workpiece mounting position in place is prevented, and therefore, a reaction force can be generated at the fixed end of the workpiece in the press-fitting process to cause the deformation of the press-fitted workpiece. The press fitting equipment is high in flexibility, can effectively avoid stress deformation of workpieces in the press fitting process, effectively improves and ensures press fitting production quality, and is suitable for production of products with different sizes.

Drawings

Fig. 1 is a schematic view of a press-fitting device according to an embodiment of the present invention in a working state before press-fitting;

fig. 2 is a schematic view of a working state of the press-fitting device in a first view in the press-fitting process according to the embodiment of the present invention;

fig. 3 is a schematic view of a working state of the press-fitting device at a second viewing angle in the press-fitting process according to the embodiment of the present invention;

fig. 4 is a schematic view of a working state of the press-fitting device at a third viewing angle in the press-fitting process according to the embodiment of the present invention.

In the figure:

1. a movable seat; 11. a workpiece mounting position; 111. a supporting seat; 12. a support rail; 13. a slide rail;

2. a first driving device;

3. a ram assembly; 31. a sensor; 32. a floating joint; 33. a pressure head;

4. a base; 41. a base plate; 42. a second driving device; 43. a ball screw; 44. a ball screw nut; 45. a roller seat; 46. a stopper;

100. a workpiece; 200. a bushing.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element 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" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1-4, the present invention provides a press-fitting apparatus, which comprises a movable base 1, a first driving device 2, a ram assembly 3 and a base 4. One end of the movable seat 1 is provided with a workpiece mounting position 11, one end of the workpiece 100 is fixedly arranged as a fixed end, and the other end of the workpiece 100 is abutted against the workpiece mounting position 11; the first driving device 2 comprises a first output end moving along the linear direction, and the first driving device 2 is fixedly arranged at the other end of the moving seat 1; the pressure head assembly 3 is fixedly connected with the first output end, the bushing 200 is sleeved on the pressure head assembly 3, and the first output end drives the pressure head assembly 3 to move towards the workpiece mounting position 11 so that the bushing 200 is pressed into the workpiece 100; the movable seat 1 is installed on the base 4, the movable seat 1 can move linearly on the base 4, and the moving direction of the movable seat 1 is parallel to the pressing direction of the pressure head assembly 3.

In the present embodiment, as shown in fig. 1, the movable base 1 is a C-shaped structure, one end of the movable base is fixedly provided with the first driving device 2, in the present embodiment, the first driving device 2 is preferably an electric cylinder, and the other end of the movable base 1 is provided with the workpiece mounting position 11. Specifically, the workpiece mounting site 11 includes a support seat 111 with a hollow interior, and the workpiece 100 abuts against the support seat 111. It is understood that, during the actual press-fitting, one end of the workpiece 100 (i.e., the tilted free end of the workpiece 100 in the drawing) is fixed at a designated position, a clamp or other fixing device (the clamp or other fixing device is not shown in the drawing) is used to fix one end of the workpiece 100, the other end of the workpiece 100 is in abutting contact with the supporting seat 111 at the workpiece mounting location 11, and the supporting seat 111 serves to support the workpiece 100. However, in the actual press-fitting process, when the fixed end of the workpiece 100 is installed in place, due to the influence of factors such as the size deviation of the workpiece 100, the other end of the workpiece 100 does not necessarily abut against the supporting seat 111 in place, and if the other end of the workpiece 100 does not abut against the supporting seat 111 in place, there is a gap with the supporting seat 111, and in the press-fitting process, a reaction force is generated at the fixed end of the workpiece 100, which causes the workpiece 100 after press-fitting to deform.

Specifically, the base 4 includes a bottom plate 41, a second driving device 42, a ball screw 43, and a ball screw nut 44. The second driving device 42 is fixedly installed on the bottom plate 41, and the second driving device 42 includes a second output end for outputting rotation; the ball screw 43 is fixedly connected with the second output end; the ball screw nut 44 is mounted on the bottom surface of the movable base 1 and is screwed to the ball screw 43.

In this embodiment, as shown in fig. 2-4, the second driving device 42 in this embodiment is preferably a motor, and the moving seat 1 is driven to move on the bottom plate 41 by a transmission driving method of a ball screw, and the moving precision is high. In this embodiment, two ball screw nuts 44 are disposed on the bottom surface of the movable base 1 at intervals along the same linear direction, the ball screw 43 is in threaded connection with the two ball screw nuts 44, the second driving device 42 is started to drive the ball screw 43 to rotate, and the movable base 1 can move on the bottom plate 41. In addition, other types of linear driving methods can be selected, and the present embodiment is not limited thereto.

Specifically, a plurality of roller seats 45 are uniformly distributed on the base 4, and the plurality of roller seats 45 are abutted to the bottom surface of the moving seat 1. In this embodiment, as shown in fig. 3 and 4, two rows of roller seats 45 are disposed on the base 4 at intervals along the moving direction of the moving seat 1, and the roller seats 45 support against the bottom surface of the moving seat 1 to support the moving seat 1, thereby bearing part of the weight of the moving seat 1 and ensuring the stable movement of the moving seat 1.

Specifically, two support rails 12 are provided at intervals on the bottom surface of the moving base 1, and the roller base 45 abuts against the support rails 12. In this embodiment, two support rails 12 are disposed on the bottom surface of the movable base 1, and the roller base 45 abuts against the support rails 12 to reduce the abrasion of the bottom surface of the movable base 1.

Specifically, the base 4 is provided with a plurality of stoppers 46, and the plurality of stoppers 46 are distributed on both sides of the movable base 1. In this embodiment, the base 4 is provided with stoppers 46 along both sides of the movable seat 1, the stoppers 46 are L-shaped and bent toward the support rail 12, the support rail 12 protrudes toward the side wall of the movable seat 1, and the L-shaped stoppers 46 are engaged with the protruding portion of the support rail 12 to guide the movable seat 1 and prevent the movable seat 1 from overturning.

Specifically, the pressure head assembly 3 comprises a sensor 31, a floating joint 32 and a pressure head 33 which are fixedly connected in sequence, the sensor 31 is connected with a first output end, and the bushing 200 is sleeved on the pressure head 33. In this embodiment, as shown in fig. 2-4, the bushing 200 is sleeved on the ram 33, the floating joint 32 is a component commonly used in the art, the sliding rail 13 is disposed on the movable base 1, and the floating joint 32 is slidably connected with the sliding rail 13 to ensure smooth movement. The embodiment combines the first driving device 2 (driven by the servo electric cylinder) and the feedback control technology of the sensor 31, can control the final pressing state in a displacement mode and a pressure feedback mode, can acquire the displacement curve and the pressure curve information of the pressing head 33 in real time, and ensures that the movement precision of the pressing head 33 can be accurately controlled, so that the pressing quality of the workpiece 100 is stable.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A press-fitting apparatus, comprising:

the device comprises a movable seat (1), wherein one end of the movable seat (1) is provided with a workpiece mounting position (11), one end of a workpiece (100) is fixedly arranged as a fixed end, and the other end of the workpiece (100) is abutted against the workpiece mounting position (11);

the first driving device (2) comprises a first output end which moves along a linear direction, and the first driving device (2) is fixedly arranged at the other end of the moving seat (1);

the pressing head assembly (3) is fixedly connected with the first output end, the bushing (200) is sleeved on the pressing head assembly (3), and the first output end drives the pressing head assembly (3) to move towards the workpiece mounting position (11) so that the bushing (200) is pressed into the workpiece (100);

the base (4), remove seat (1) install in on base (4), remove seat (1) can linear movement on base (4), the moving direction that removes seat (1) with the direction of impressing of pressure head subassembly (3) is parallel.

2. A press-fitting apparatus according to claim 1, wherein said base (4) includes:

a base plate (41);

the second driving device (42), the second driving device (42) is fixedly installed on the bottom plate (41), and the second driving device (42) comprises a second output end for outputting rotation;

the ball screw (43), the ball screw (43) is fixedly connected with the second output end;

and the ball screw nut (44) is arranged on the bottom surface of the moving seat (1), and is in threaded connection with the ball screw (43).

3. A press-fitting apparatus according to claim 2, characterised in that said second drive means (42) is an electric motor.

4. A press-fitting apparatus according to claim 2, wherein a plurality of roller seats (45) are uniformly distributed on the base (4), and the plurality of roller seats (45) are abutted against the bottom surface of the movable seat (1).

5. A press-fitting apparatus according to claim 4, wherein the moving base (1) is provided at intervals with two support rails (12) on the bottom surface thereof, and the roller base (45) abuts against the support rails (12).

6. A press-fitting apparatus according to claim 5, characterised in that a plurality of stoppers (46) are provided on the base (4), the plurality of stoppers (46) being distributed on both sides of the movable seat (1).

7. A press-fitting apparatus as claimed in claim 1, wherein the ram assembly (3) includes a sensor (31), a floating joint (32) and a ram (33) fixedly connected in sequence, the sensor (31) is connected to the first output terminal, and the bushing (200) is fitted over the ram (33).

8. A press-fitting equipment according to claim 7, characterized in that the movable base (1) is provided with slide rails (13), and the floating joint (32) is slidably connected with the slide rails (13).

9. A press-fitting apparatus according to any one of claims 1 to 8, characterised in that said workpiece mounting location (11) includes a support seat (111) having a hollow interior, said workpiece (100) abutting against said support seat (111).

10. A press-fitting apparatus according to any one of claims 1 to 8, characterised in that the first driving means (2) is an electric cylinder.