Servo press

Abstract

The utility model discloses a kind of servo press, including rack, power component, limit lower die holder, limit upper die holder, pressing lower die, pressing upper die;The rack is vertically arranged, and the middle part is horizontally arranged with workbench top;The workbench top is fixed with fixture mounting plate, and the fixture mounting plate is equipped with limit lower die holder;The fixture mounting plate, limit lower die holder, pressing lower die middle part are all equipped with shaft cavity;Limit lower die holder, pressing lower die are coaxial with shaft cavity as center;The upper surface of limit lower die holder is equipped with die cavity;The pressing lower die is in die cavity;The upper surface of pressing lower die is equipped with workpiece placing cavity, and its bottom is equipped with nut sink cavity.The servo press of the utility model, its structure design is simple and reasonable, stable and reliable in operation;Upper shell can be pressed on lower shell and link frame accurately and efficiently, and the three hole positions are aligned;For subsequent hole position inserts fastener, the three are connected and fixed firmly, and do well in advance work.

Description

Technical Field

[0001] This utility model relates to the field of stamping assembly equipment technology, and in particular to a servo press. Background Technology

[0002] A servo press typically refers to a press driven and controlled by a servo motor. Due to its numerical control characteristics, it is sometimes also called a CNC press. A servo press uses a servo motor to drive an eccentric gear, achieving the movement of a slide block. Taking a servo crank press as an example, it can combine the advantages of mechanical and hydraulic presses through pre-programming, enabling stamping production in any manner at any stage of the stroke, and the pressure curve can also be programmed arbitrarily. Servo presses are widely used in industries such as automotive, electronics, machinery, and home appliances, including engine component press-fitting in the automotive industry, circuit board assembly press-fitting in the electronics industry, and parts press-fitting in the machinery industry.

[0003] The servo press provided in this application is a device for pressing and assembling the lower housing, rotor and upper housing of a motor. The assembly process before and after this process needs to be completed by other equipment. Alternatively, the main structure of the device in this application can be used, and the corresponding pressing mold can be replaced to complete the corresponding assembly process. Utility Model Content

[0004] The purpose of this utility model is to provide a servo press with a simple and reasonable structural design and stable and reliable operation; it can accurately and efficiently press the upper shell onto the lower shell and connecting frame, and align the holes of the three; it prepares the way for subsequent insertion of fasteners (pins, rivets or screws) into the holes to securely connect and fix the three together.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A servo press includes a frame, a power unit, a lower limiting die holder, an upper limiting die holder, a lower pressing die, and an upper pressing die;

[0007] The frame is vertically arranged, with a worktable horizontally arranged in the middle, an electrical cabinet at the bottom, a material feeding / unloading window, an operating table, and a display screen on the front, and protective covers on the left, right, and rear sides.

[0008] A fixture mounting plate is fixed on the worktable, and a limiting lower mold base is provided on the fixture mounting plate; the fixture mounting plate, the limiting lower mold base, and the pressing lower mold are all provided with shaft cavities in the middle (for placing the rotating shafts at both ends of the rotor); the limiting lower mold base and the pressing lower mold are coaxially arranged with the shaft cavity as the center.

[0009] The upper surface of the limiting lower mold base is provided with a mold cavity for inserting the mold; the pressing lower mold is located inside the mold cavity, and the outer contour of the pressing lower mold is adapted to the size and shape of the mold cavity. Both the limiting lower mold base and the pressing lower mold are provided with limiting pin holes (the limiting pin holes are aligned vertically). The upper and lower ends of the limiting pins are inserted into the limiting pin holes of the pressing lower mold and the limiting lower mold base, respectively, connecting the limiting lower mold base and the pressing lower mold, restricting the radial displacement of the pressing lower mold, that is, it cannot rotate, but can be placed and removed vertically.

[0010] The upper surface of the pressing die has a workpiece placement cavity, which is a bowl-shaped concave cavity with a nut recess at the bottom. The workpiece referred to here is the lower housing and connecting frame of the motor, and the rotor assembly. The lower housing and connecting frame of this assembly are assembled together using screws (or rivets). The workpiece is placed in the workpiece placement cavity, and the protruding nut at the bottom of the workpiece fits precisely into the nut recess, thus restricting the radial displacement of the workpiece. Similarly, both the limiting upper die base and the pressing upper die have a second shaft cavity in the middle (for placing the rotating shafts at both ends of the rotor); the limiting upper die base and the pressing upper die are coaxially arranged with the second shaft cavity as the center.

[0011] The limiting upper mold base is horizontally positioned, and its top is connected to the output shaft of the power component, which drives it to move up and down. The lower surface of the limiting upper mold base is provided with a mold cavity two for inserting the mold; the pressing upper mold is located inside the mold cavity two (detachably connected), and the size and shape of the pressing upper mold are adapted to the mold cavity two.

[0012] The lower surface of the pressing upper mold is provided with an upper shell placement cavity, which is a bowl-shaped concave cavity with a positioning pin at the top. The positioning pin passes through the pressing upper mold and the limiting upper mold seat in sequence (and extends out of the bottom of the pressing upper mold, with a section exposed), so that the pressing upper mold cannot be radially displaced relative to the limiting upper mold seat.

[0013] The pressing mold or the limiting mold base is equipped with an electromagnet for adsorbing the upper shell.

[0014] The upper housing is placed inside the upper housing placement cavity and can be attracted to the cavity by an electromagnet. Rotating the upper housing, which has mounting through holes, establishes the reference position for loading and assembling the upper housing when the through holes are fitted onto the locating pins (on the exposed portion of the locating pins). At this point, the power unit presses down, pressing the upper housing onto the lower housing, connecting frame, and rotor (tensioning fit, completing pre-fixation). Simultaneously, the mounting holes on the connecting frame and the upper housing are aligned. Subsequently, fasteners are inserted into the mounting holes on the connecting frame and the upper housing to assemble and fix the lower housing, rotor, and upper housing of the motor.

[0015] The shaft cavity and shaft cavity 2 are aligned vertically and coaxially; the nut cavity and the locating pin are aligned vertically and coaxially.

[0016] The beneficial effects of this utility model are:

[0017] Its structural design is simple and reasonable, and its operation is stable and reliable. It can accurately and efficiently press the upper shell onto the lower shell and the connecting frame, and align the holes of the three. This is a preliminary step for inserting fasteners (pins, rivets or screws) into the holes to securely connect and fix the three together. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a servo press according to the present invention;

[0019] Figure 2 This is a schematic diagram showing the assembly relationship between the workpiece and the upper shell;

[0020] Figure 3 This is a schematic diagram showing the structure and connection relationship of the lower limiting mold base, the upper limiting mold base, the lower pressing mold, and the upper pressing mold of this utility model;

[0021] Figure 4 This is a second perspective view of the structure and connection relationship of the limiting lower mold base, limiting upper mold base, pressing lower mold, and pressing upper mold of this utility model.

[0022] Figure 5 This is a front view of the lower limiting mold base, the upper limiting mold base, the lower pressing mold, and the upper pressing mold of this utility model;

[0023] Figure 6 for Figure 5 Cross-sectional view along the BB direction;

[0024] Figure 7 The diagram shows the structure of the lower mold for pressing (in the diagram, all screws are actually pressed into the mounting holes of the connecting bracket, leaving only the nuts attached to the lower surface of the lower housing). Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] like Figures 1-7 As shown, a servo press includes a frame 1, a power unit 2, a lower limiting die holder 3, an upper limiting die holder 4, a lower pressing die 5, and an upper pressing die 6.

[0027] The frame 1 is vertically arranged, with a worktable 11 horizontally arranged in the middle, an electrical cabinet 12 at the bottom, a material feeding / unloading window, an operating table 14, and a display screen 15 on the front side, and protective covers 16 on the left, right, and rear sides.

[0028] A fixture mounting plate 17 is fixed on the worktable 11, and a limiting lower mold base 3 is provided on the fixture mounting plate 17; the fixture mounting plate 17, the limiting lower mold base 3, and the pressing lower mold 5 are all provided with shaft cavities 7 in the middle (for placing the rotating shafts at both ends of the rotor); the limiting lower mold base 3 and the pressing lower mold 5 are coaxially arranged with the shaft cavity 7 as the center.

[0029] The upper surface of the limiting lower mold base 3 is provided with a mold cavity for inserting the mold; the pressing lower mold 5 is located inside the mold cavity, and the outer contour of the pressing lower mold 5 is adapted to the size and shape of the mold cavity. Both the limiting lower mold base 3 and the pressing lower mold 5 are provided with limiting pin holes (the limiting pin holes are aligned vertically). The upper and lower ends of the limiting pins are inserted into the limiting pin holes of the pressing lower mold 5 and the limiting lower mold base 3, respectively, connecting the limiting lower mold base 3 and the pressing lower mold 5, restricting the radial displacement of the pressing lower mold 5, that is, it cannot rotate, but can be placed and removed vertically.

[0030] The upper surface of the lower pressing mold 5 is provided with a workpiece placement cavity 50, which is a bowl-shaped concave cavity; the edge of the lower pressing mold 5 is provided with a nut recess 51. The workpiece 8 referred to herein is the assembly assembly of the lower housing 81 of the motor, the connecting frame 82, and the rotor 83. The lower housing 81 and the connecting frame 82 of this assembly assembly have been assembled together by screws 84 (or rivets). The workpiece 8 is placed in the workpiece placement cavity 50, and the exposed protruding nut 841 at the bottom of the workpiece 8 fits into the nut recess 51, which can limit the radial displacement of the workpiece 8. Similarly, the upper limiting mold base 4 and the upper pressing mold 6 are both provided with a shaft cavity two (for the rotating shafts at both ends of the rotor to be placed); the upper limiting mold base 4 and the upper pressing mold 6 are coaxially arranged with the shaft cavity two as the center.

[0031] The limiting upper mold base 4 is horizontally arranged, and its top is connected to the output shaft of the power component 2, which drives it to move up and down. The lower surface of the limiting upper mold base 4 is provided with a mold cavity 61 for inserting the mold; the pressing upper mold 6 is located inside the mold cavity 61 (detachably connected), and the size and shape of the pressing upper mold 6 are adapted to the mold cavity 61.

[0032] The lower surface of the pressing upper mold 6 is provided with an upper shell placement cavity, which is a bowl-shaped concave cavity with a positioning pin 9 at the top. The positioning pin 9 passes through the pressing upper mold 6 and the limiting upper mold seat 4 in sequence (and extends out of the bottom of the pressing upper mold 6, with a section exposed), so that the pressing upper mold 6 cannot be radially displaced relative to the limiting upper mold seat 4.

[0033] The pressing upper mold 6 or the limiting upper mold base 4 is equipped with an electromagnet for adsorbing the upper shell 85.

[0034] The upper housing 85 is placed inside the upper housing placement cavity. It can be attracted to the upper housing placement cavity by an electromagnet. Rotating the upper housing 85, since it has mounting through holes, when the mounting through holes are fitted onto the locating pin 9 (on the exposed section of the locating pin 9), this becomes the reference position for loading and assembling the upper housing 85. At this time, the power component 2 presses down, pressing the upper housing 85 onto the lower housing 81, the connecting frame 82, and the rotor 83 (the upper housing is fitted onto the outer wall of the connecting frame, tensioned for pre-fixation). Simultaneously, the mounting holes 821 on the connecting frame 82 and 851 on the upper housing 85 are aligned. Subsequently, fasteners are inserted into the mounting holes on the connecting frame 82 and the upper housing 85 to assemble and fix the lower housing 81, rotor 83, and upper housing 85 of the motor.

[0035] The shaft cavity 7 and shaft cavity 2 are aligned vertically and coaxially; the nut cavity 51 and the locating pin 9 are aligned vertically and coaxially.

[0036] Preferably, it also includes a horizontally arranged lifting slide 10, with sliding sleeves 19 fitted at the four corners of the lifting slide 10; vertically arranged guide rods 18 are provided at the four corners of the worktable 11; the sliding sleeves 19 are fitted onto the guide rods 18.

[0037] Preferably, the output shaft of the power unit 2 is connected to the lifting slide 10, and the bottom of the lifting slide 10 is connected to the limiting upper mold base 4.

[0038] Preferably, the power component 2 is one of a servo motor, a servo hydraulic press, a pneumatic cylinder, or a hydraulic cylinder.

[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A servo press, comprising a frame, a power unit, a lower limiting die holder, an upper limiting die holder, a lower pressing die, and an upper pressing die; The frame is vertically arranged, with a horizontal worktable in its middle; A fixture mounting plate is fixedly provided on the workbench surface, and a limiting lower mold base is provided on the fixture mounting plate; characterized in that: The fixture mounting plate, the limiting lower mold base, and the pressing lower mold are all provided with a shaft cavity in the middle; the limiting lower mold base and the pressing lower mold are coaxially arranged with the shaft cavity as the center; The upper surface of the limiting lower mold base is provided with a mold cavity; the pressing lower mold is disposed within the mold cavity; Both the lower mold base and the lower mold pressing are provided with limiting pin holes. The upper and lower ends of the limiting pin are inserted into the limiting pin holes of the lower mold pressing and the lower mold base, respectively, to connect the lower mold base and the lower mold pressing and restrict the radial displacement of the lower mold pressing. The upper surface of the pressing die is provided with a workpiece placement cavity, and its edge is provided with a nut recess.

2. The servo press according to claim 1, characterized in that: The limiting upper mold base and the pressing upper mold are both provided with a second shaft cavity in the middle; the limiting upper mold base and the pressing upper mold are coaxially arranged with the second shaft cavity as the center; The limiting upper mold base is horizontally arranged, and its top is connected to the output shaft of the power component, which drives it to move up and down. The lower surface of the limiting upper mold base is provided with a mold cavity two for inserting the mold. The pressing upper mold is located inside the mold cavity two. The lower surface of the pressing upper mold is provided with an upper shell placement cavity, and the top of the upper shell placement cavity is provided with a positioning pin; the positioning pin passes through the pressing upper mold and the limiting upper mold seat in sequence, and passes through the bottom of the pressing upper mold, so that the pressing upper mold cannot be radially displaced relative to the limiting upper mold seat.

3. The servo press according to claim 2, characterized in that: The pressing upper mold or the limiting upper mold base is equipped with an electromagnet for adsorbing the upper shell; The upper shell is placed inside the upper shell placement cavity and is attracted to the upper shell placement cavity by an electromagnet.

4. The servo press according to claim 3, characterized in that: The shaft cavity and shaft cavity 2 are aligned vertically and coaxially; the nut cavity and the locating pin are aligned vertically and coaxially.

5. The servo press according to claim 4, characterized in that: It also includes a horizontally arranged lifting slide, with sliding sleeves fitted at the four corners of the lifting slide; vertically arranged guide rods are provided at the four corners of the work surface; the sliding sleeves are fitted onto the guide rods.

6. The servo press according to claim 5, characterized in that: The output shaft of the power unit is connected to the lifting slide, and the bottom of the lifting slide is connected to the limit upper mold base.

7. The servo press according to claim 2, characterized in that: The power component is one of the following: servo motor, servo hydraulic press, cylinder, or hydraulic cylinder.

8. The servo press according to claim 2, characterized in that: The frame has an electrical cabinet at the bottom, a material inlet / outlet window, an operating table, and a display screen at the front, and protective covers on the left, right, and rear sides.

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