Automatic press-fitting machine

Abstract

The utility model relates to an automatic press fitting machine, including work table for installing pressboard, drive assembly, support assembly, guide lubrication subassembly and response subassembly, pressboard is used for under the drive of drive assembly, carries out press fitting or die cutting operation to workpiece through up-down reciprocating motion, support assembly, install drive assembly, guide lubrication subassembly and response subassembly on this support assembly, drive assembly includes motor, screw rod and mobile guide pillar with motor transmission connection, mobile guide pillar with support assembly sliding fit, the lower end of this mobile guide pillar is connected pressboard, the screw rod with lift plate screw thread cooperation installed on pressboard, the utility model has the advantages that: support assembly adopts vertical support and horizontal crossbeam combined structure, and strengthens the junction through triangular reinforcing rib, significantly promotes overall compression bending resistance, ensures that equipment is stable under high load operation, reduces vibration deformation.

Description

Technical Field

[0001] This utility model relates to an automatic pressing machine, belonging to the field of assembly. Background Technology

[0002] In modern industrial production, automatic press-fitting machines, as key equipment for product assembly, press-fitting, and die-cutting, are widely used in the assembly process of various products. However, the current market for assembly machines is characterized by a wide variety of styles but a lack of innovative high-precision press-fitting equipment.

[0003] Existing equipment on the market has a complex and suboptimal structural design, poor operational stability, and high noise levels, making it difficult to meet the modern industrial demand for high-precision, low-noise equipment. Furthermore, the application range of existing equipment is relatively narrow, making it difficult to adapt to the pressing and die-cutting work of the vast majority of products on the market.

[0004] Traditional automatic pressing machines are usually large and heavy, and lack integrated design, which makes it inconvenient to move and install the equipment, increasing the production cost and operation difficulty for enterprises.

[0005] With the continuous improvement of industrial automation, the market demand for high-performance automatic pressing machines is growing. There is an urgent need for an integrated automatic pressing machine that can overcome the shortcomings of existing technologies and achieve high precision, high efficiency and wide application. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this utility model provides an automatic pressing machine. The technical solution of this utility model is as follows:

[0007] An automatic press-fitting machine, comprising:

[0008] A workbench (1) is used to mount a pressure plate (2), a drive assembly, a support assembly, a guide lubrication assembly, and a sensing assembly;

[0009] The pressure plate (2) is used to perform pressing or die-cutting operations on the workpiece by reciprocating up and down motion under the drive of the drive assembly;

[0010] A support assembly on which the aforementioned drive assembly, guide lubrication assembly, and sensing assembly are mounted;

[0011] The drive assembly includes a motor (3), a screw (5) that is driven by the motor (3), and a movable guide post (4). The movable guide post (4) is slidably engaged with the support assembly, and the lower end of the movable guide post (4) is connected to the pressure plate (2). The screw (5) is threadedly engaged with a lifting plate mounted on the pressure plate.

[0012] A guide lubrication assembly is used to guide the movable guide post (4);

[0013] The sensing component includes a sensing plate (9) fixed on the movable guide post (4), and an upper sensing photoelectric sensor (10a) and a lower sensing photoelectric sensor (10b) adjustable along the height direction of the movable guide post (4). The upper sensing photoelectric sensor (10a) and the lower sensing photoelectric sensor (10b) control the start and stop of the motor (3) by detecting the position of the sensing plate (9).

[0014] The control panel is connected to both the drive component and the sensing component. The support component includes supports (7) vertically fixed to both sides of the workbench (1) and a crossbeam (6) horizontally spanning the two supports (7). The motor (3) is fixed in the middle of the crossbeam (6), and the motor (3) is arranged in the vertical direction.

[0015] The guide lubrication assembly includes two linear bearings (8) sleeved on the movable guide post (4), which are symmetrically mounted on the crossbeam (6).

[0016] The upper sensing photoelectric sensor (10a) and the lower sensing photoelectric sensor (10b) are mounted on the support and are spaced apart.

[0017] The upper sensing photoelectric sensor (10a) and the lower sensing photoelectric sensor (10b) are infrared through-beam sensors.

[0018] The control panel (11) is installed on the side of the workbench (1). The control panel (11) is equipped with a manual / automatic switch, a pressure adjustment knob and a stroke parameter input interface.

[0019] The bottom of the workbench (1) is provided with an anti-slip and shock-absorbing pad (12).

[0020] The joint between the crossbeam (6) and the support (7) is provided with a triangular reinforcing rib (15). A desktop extension plate (16) is also provided on the workbench (1).

[0021] The advantages of this utility model are:

[0022] 1. High stability and rigidity design

[0023] The support assembly adopts a combination structure of vertical supports and horizontal beams, and the joints are reinforced with triangular reinforcing ribs, which significantly improves the overall compressive and bending resistance, ensuring stable operation of the equipment under high loads and reducing vibration and deformation.

[0024] Anti-slip and shock-absorbing pads are made of elastic materials (such as rubber or polyurethane) to effectively absorb operational impacts, reduce noise, prevent equipment displacement, and improve long-term reliability.

[0025] 2. Precision transmission and guidance system

[0026] The screw and moving guide post adopt a vertical layout, and with the symmetrical guidance of double linear bearings, the interference of lateral force is eliminated, ensuring that the up and down movement of the pressure plate meets the high-precision pressing requirements.

[0027] Linear bearings use low-friction, self-lubricating materials to reduce guide post wear, extend service life, and reduce maintenance frequency.

[0028] 3. Intelligent control and operational flexibility

[0029] The infrared through-beam photoelectric sensor realizes closed-loop control of the pressure plate stroke by detecting the position of the sensing element, and supports precise adjustment of the upper and lower limits to avoid damage to the workpiece due to overtravel.

[0030] The control panel integrates manual / automatic switching, pressure adjustment, and stroke parameter input functions, allowing users to quickly adapt to different molds and significantly improve the flexibility of multi-variety production.

[0031] This invention solves the problems of low precision, slow changeover and high energy consumption of traditional press-fitting machines. It is suitable for the efficient production of precision parts in the fields of electronics and automobiles, and has the advantages of high reliability, flexibility and economy. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0033] Figure 2 yes Figure 1 Side view.

[0034] Figure 3 yes Figure 1 Top view. Detailed Implementation

[0035] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0036] See Figures 1 to 3This utility model relates to an automatic pressing machine, including a worktable 1 for mounting a pressure plate 2, a drive assembly, a support assembly, a guide lubrication assembly, and a sensing assembly; the pressure plate 2 is used to perform pressing or die-cutting operations on workpieces through reciprocating motion under the drive assembly; the support assembly is on which the drive assembly, guide lubrication assembly, and sensing assembly are mounted; the drive assembly includes a motor 3, a screw 5 and a moving guide post 4 connected to the motor 3, the moving guide post 4 is slidably engaged with the support assembly, and the lower end of the moving guide post 4 is connected to the pressure plate 2; the screw 5 is threadedly engaged with a lifting plate mounted on the pressure plate; the sensing assembly includes a sensing plate 9 fixed on the moving guide post 4, and an upper sensing photoelectric sensor 10a and a lower sensing photoelectric sensor 10b adjustable along the height direction of the moving guide post 4, the upper sensing photoelectric sensor 10a and the lower sensing photoelectric sensor 10b controlling the start and stop of the motor 3 by detecting the position of the sensing plate 9; and a control panel, on which the drive assembly and the sensing assembly are connected.

[0037] The structural advantages of this automatic pressing machine are as follows:

[0038] 1. High-precision transmission and stability

[0039] The transmission design of screw 5 and lifting plate threadedly, combined with the sliding fit of moving guide post 4 and support assembly, ensures the verticality and stability of pressure plate 2's up and down movement, making it suitable for high-precision machining requirements of precision parts (such as bearings and electronic components).

[0040] The dual-sensor photoelectric sensor detects the position of the sensing element on the moving guide post to achieve closed-loop control of the pressure plate stroke, avoiding overtravel or positioning deviation and improving processing consistency.

[0041] 2. Modular design and operational flexibility

[0042] The control panel integrates drive and sensing components, supports manual / automatic mode switching, pressure adjustment and stroke parameter input. Users can quickly adjust the pressing parameters according to different mold requirements, significantly improving the flexibility of multi-variety production.

[0043] The rigid connection design between the pressure plate and the moving guide post, combined with the detachable interface, makes it easy to adapt to various molds and expand the application scenarios of the equipment.

[0044] 3. Structural rigidity optimization and ease of maintenance

[0045] The support components adopt a sliding fit design, and the frictional loss of the moving guide post is reduced by the guide lubrication component, ensuring long-term operational stability.

[0046] This invention solves the problems of low precision, slow changeover, high energy consumption, and complex maintenance of traditional press-fitting machines through the synergistic effect of precision transmission, intelligent control, modular design, and rigidity optimization. It is especially suitable for the high-efficiency and flexible production needs of industries such as electronics, automobiles, and home appliances, and has both high reliability and economy.

[0047] The support assembly includes supports 7 vertically fixed to both sides of the workbench 1, and a crossbeam 6 horizontally spanning the two supports 7. The motor 3 is fixed in the middle of the crossbeam 6, and the motor 3 is arranged vertically. The advantages of this support assembly structure are as follows:

[0048] 1. Optimization of high rigidity load bearing and force transmission

[0049] The frame combination of vertical support 7 and horizontal beam 6 forms a stable gantry structure. Through mechanical distribution design, the driving load of motor 3 is evenly transferred to the two side supports 7 and worktable 1, avoiding local stress concentration and ensuring long-term stable operation of the equipment under 1-3 tons of press pressure.

[0050] The motor 3, which is vertically mounted in the middle of the crossbeam 6, is fixed so that the motor output shaft is coaxially aligned with the screw 5, thereby reducing the off-center load and torque loss of the transmission chain and improving energy utilization.

[0051] 2. Compact spatial layout

[0052] The motor 3 is embedded vertically inside the crossbeam 6, saving horizontal space, reducing the overall height of the equipment, and making it easier to install and operate in limited workshop space.

[0053] The horizontal beam 6 spans the supports 7 on both sides, forming an open working area, which makes it convenient for operators to observe the pressing process and change molds.

[0054] 3. Improved vibration resistance and durability

[0055] The support 7 and the crossbeam 6 are combined with the triangular reinforcing rib 15 at the joint, which greatly improves the structural bending and torsional resistance, suppresses the vibration and deformation generated during the pressing process, and extends the service life of the equipment.

[0056] The rigid connection between the vertical motor 3 and the horizontal beam 6 avoids the vibration amplification problem caused by the cantilever effect of traditional side-mounted motors.

[0057] 4. Modular design and ease of maintenance

[0058] The support components adopt a split design (the support 7 and the crossbeam 6 are detachably connected), which facilitates transportation and on-site assembly and reduces the logistics costs of large equipment.

[0059] The motor 3 is exposed in the middle of the crossbeam 6, which provides good heat dissipation. Moreover, the entire structure can be repaired or replaced directly without disassembling it during maintenance.

[0060] 5. Optimization accuracy of the cooperative guidance system

[0061] The linear bearings 8 symmetrically installed on both sides of the crossbeam 6 cooperate with the movable guide post 4 to form a double guide constraint, further limiting the lateral displacement of the pressure plate 2.

[0062] The coaxial layout of the vertical motor 3 and the screw 5 reduces the angular deviation of the transmission system and avoids the cumulative error of traditional belt or chain transmission.

[0063] This support component, through the integrated design of the gantry frame and motor, achieves high rigidity, low vibration, and easy maintenance structural characteristics within a limited space. At the same time, it works in conjunction with the transmission and guiding system to provide a stable mechanical foundation for high-precision press fitting, making it particularly suitable for industrial scenarios with stringent requirements for space efficiency and processing consistency.

[0064] The guide lubrication assembly includes two linear bearings 8 sleeved on the movable guide post 4, symmetrically mounted on the crossbeam 6. This guide lubrication assembly, through its symmetrical dual-bearing layout and self-lubricating design, ensures high-precision movement while also achieving low energy consumption, long lifespan, and ease of maintenance. It is particularly suitable for fields with stringent requirements for press-fit consistency, such as electronics and automotive parts manufacturing, significantly improving the overall performance and production efficiency of the equipment.

[0065] The upper sensing photoelectric sensor 10a and the lower sensing photoelectric sensor 10b are mounted on the support and are spaced apart.

[0066] The upper sensing photoelectric sensor 10a and the lower sensing photoelectric sensor 10b are infrared through-beam sensors. The upper and lower sensing photoelectric sensors are directly fixed to the support 7. The support serves as a rigid support structure to prevent sensor displacement caused by equipment vibration or pressing impact, ensuring stable position detection accuracy of the sensing element 9 and reducing the risk of false triggering.

[0067] The sensors are centrally installed in the same area of ​​the support 7, and the signal cables are routed along the inside or surface of the support to avoid interference with moving parts (such as guide posts and pressure plates) and reduce the risk of line wear. At the same time, there is no need to disassemble other components when troubleshooting or replacing sensors, improving maintenance efficiency by more than 50%.

[0068] This structure achieves a balance between high-precision detection, flexible adaptation, and ease of maintenance, making it particularly suitable for multi-variety, high-frequency pressing scenarios.

[0069] The control panel 11 is installed on the side of the workbench 1. The control panel 11 is equipped with a manual / automatic switch, a pressure adjustment knob and a stroke parameter input interface.

[0070] The bottom of the workbench 1 is equipped with an anti-slip and shock-absorbing pad 12, which effectively absorbs the impact vibration generated during the pressing process.

[0071] The joint between the crossbeam 6 and the support 7 is provided with a triangular reinforcing rib 15, which optimizes the stress concentration caused by the press load through mechanical optimization, improves the bending and torsional resistance of the connection part, and reduces long-term high load.

[0072] Through the synergistic design of shock absorption and rigidity enhancement, the system takes into account the stability of equipment operation, structural reliability and environmental adaptability, making it particularly suitable for industrial scenarios with high load and high precision continuous production.

[0073] The working principle of this automatic pressing machine is as follows:

[0074] 1. Equipment initialization and parameter setting

[0075] Workpiece placement: The operator places the workpiece to be pressed or die-cut in the designated position on the worktable 1 and installs the appropriate mold.

[0076] Mode selection: Select manual or automatic mode via control panel 11. Manual mode is used for debugging or small batch production, while automatic mode is suitable for continuous operation.

[0077] Parameter input: Set the pressing pressure and stroke range (by adjusting parameters such as the height of the upper photoelectric sensor 10a and the lower photoelectric sensor 10b, the control panel transmits the instructions to the PLC or microcontroller).

[0078] 2. Driving and Transmission Process

[0079] Motor Start: Motor 3 starts after receiving a control signal, and its output shaft drives the screw 5 to rotate. Motion Conversion: The screw 5 and the lifting plate on the pressure plate 2 are precisely threaded together to convert the rotational motion of the motor into the vertical linear motion of the moving guide post 4, thereby driving the pressure plate 2 to apply downward pressure.

[0080] Guiding constraint: The movable guide post 4 slides within the symmetrically mounted linear bearing 8, and the dual bearing layout eliminates lateral offset.

[0081] 3. Closed-loop control of the travel path

[0082] Position detection: The sensing plate 9, which is fixed on the movable guide post 4, moves up and down with the pressure plate 2. When the sensing plate 9 enters the detection area of ​​the upper sensing photoelectric sensor 10a or the lower sensing photoelectric sensor 10b, the sensor sends a signal.

[0083] Start-stop control:

[0084] Lower limit: When the pressure plate 2 descends to the set position, the sensing plate 9 triggers the lower sensing photoelectric sensor 10b, the motor 3 stops running, and the pressing action is completed.

[0085] Upper limit: When the pressure plate 2 returns, the sensing element 9 triggers the upper sensing photoelectric sensor 10a, the motor 3 stops, and the pressure plate resets to the initial position.

[0086] 4. Pressing and Resetting

[0087] Pressure application: After the pressure plate 2 contacts the workpiece, the motor (3) continuously outputs torque, which is transmitted to the pressure plate through the screw 5 to reach the preset pressure (1-3 tons) and maintain the pressure for a certain period of time to ensure the quality of workpiece pressing or die cutting.

[0088] Reset action: After pressing is completed, motor 3 reverses and screw 5 drives pressure plate 2 to return to the initial position along moving guide post 4, ready for the next cycle.

[0089] 5. Synergistic Effects and Security Assurance

[0090] Structural stability:

[0091] The gantry frame (support 7 + crossbeam 6) and triangular reinforcing ribs 15 of the supporting components disperse load stress and suppress vibration;

[0092] The anti-slip and shock-absorbing pads 12 at the bottom of the workbench absorb impact, reduce noise, and prevent equipment displacement. This invention solves the problems of low precision, slow changeover, and high energy consumption of traditional equipment, and is suitable for the precision manufacturing needs of fields such as electronics and automotive parts.

[0093] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic press-fitting machine characterized by comprising: The utility model relates to a kind of automatic press machine, including: Workbench (1) for installing pressing plate (2), drive assembly, support assembly, guide lubrication assembly and induction assembly; Pressing plate (2) is used to perform press fitting or die cutting operation to workpiece by up and down reciprocating motion under the driving of drive assembly; Support assembly, the drive assembly, guide lubrication assembly and induction assembly are installed on the support assembly; Drive assembly, including motor (3), screw rod (5) and moving guide column (4) with the transmission connection of the motor (3), the moving guide column (4) is slidably connected with the support assembly, and the lower end of the moving guide column (4) is connected with the pressing plate (2);The screw rod (5) is threadedly connected with lifting plate installed on the pressing plate; Guide lubrication assembly is used to guide the moving guide column (4); Induction assembly, including induction sheet (9) fixed to the moving guide column (4), and upper induction photoelectric sensor (10a) and lower induction photoelectric sensor (10b) adjustable along the height direction of the moving guide column (4), the upper induction photoelectric sensor (10a) and lower induction photoelectric sensor (10b) control the motor (3) start-stop by detecting the position of the induction sheet (9); Control panel, the drive assembly and induction assembly are connected to the control panel.

2. The automatic press-fit machine according to claim 1, characterized in that, The support assembly includes support (7) vertically fixed on both sides of the workbench (1), and crossbeam (6) horizontally crossing the two supports (7), and the motor (3) is fixed in the middle of the crossbeam (6), and the motor (3) is arranged in vertical direction.

3. The automatic press-fit machine according to claim 2, characterized in that, The guide lubrication assembly includes linear bearing (8) sleeved on the moving guide column (4), and the linear bearing (8) is two, symmetrically installed on the crossbeam (6).

4. The automatic press-fitting machine according to claim 1, characterized by The upper induction photoelectric sensor (10a) and lower induction photoelectric sensor (10b) are installed on the support, and form a spacing.

5. The automatic press-fitting machine according to claim 1, characterized by The upper induction photoelectric sensor (10a) and lower induction photoelectric sensor (10b) are infrared pair-transmitting sensors.

6. The automatic press-fitting machine according to claim 1, characterized by The control panel (11) is installed on the side of the workbench (1), and the control panel (11) is provided with manual / automatic switch, pressure regulating knob and stroke parameter input interface.

7. The automatic press-fitting machine according to claim 1, characterized by The bottom of the workbench (1) is provided with anti-skid damping pad (12).

8. The automatic press-fitting machine according to claim 1, characterized by The junction of the crossbeam (6) and support (7) is provided with triangular reinforcing rib (15).

9. The automatic press-fitting machine according to claim 1, characterized by A desktop extension plate (16) is further arranged on the workbench (1).

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