A press-fit assembly device and a manual press machine using the same

Abstract

The utility model provides a kind of compression type assembling device and application have its hand-operated compression machine, device includes pedestal, pedestal is equipped with vertical support, further include stem, its movably set in vertical support, stem is configured as under external force action can be relative to vertical support and do vertically up and down, the upper portion of stem is equipped with spring piece, to make stem and vertical support between have restoring force;Operating handle, it has a pair of mirror image side arm, the lower portion one end of side arm is hingedly connected on vertical support;A pair of mirror image linkage arm, the lower end of linkage arm is hingedly connected with the lower portion other end of side arm, the other end of two linkage arms is hingedly connected on the top of stem, the swing direction of linkage arm is consistent with the direction of operating handle's pulling;Compression body, it is set in the bottom of stem;Resting seat, it is set on pedestal, below compression body. The utility model whole compact structure, easy to manufacture and maintain, reduce cost, also improve the consistency and reliability of compression process.

Description

Technical Field

[0001] This utility model relates to the field of pressing device technology, specifically, it demonstrates a pressing assembly device and a manual pressing machine with its own application. Background Technology

[0002] Most manual pressing machines currently on the market employ a direct pressing structure design. These machines rely on manual application of vertical pressure to drive the pressing components, thereby bonding and fixing two objects together. However, these machines suffer from at least the following problems: the force transmission path during pressing is singular, requiring the user to apply significant force to achieve the desired pressing effect, making operation laborious and prone to uneven force application; furthermore, due to the lack of precise positioning and guiding structures, the product is prone to shifting during pressing, resulting in a low success rate and insufficient finished product yield. Utility Model Content

[0003] The purpose of this utility model is to provide a pressing assembly device and a manual pressing machine with its own application. The device has a simple structure and reasonable design, which reduces the difficulty of operation for workers.

[0004] The technical solution is as follows: On one hand, it relates to a press-fit assembly device, including a base, on which a support frame is provided, and further including: The pole is movably mounted on the frame and is configured to move vertically up and down relative to the frame under the action of external force. A spring is sleeved on the upper part of the pole to provide a restoring force between the pole and the frame. The operating handle has a pair of mirror-shaped side arms, the lower end of which is hinged to the upright. A pair of mirror-shaped connecting arms, the lower end of which is hinged to the other end of the lower part of the side arm, and the other ends of the two connecting arms are hinged to the top of the rod. The press-fit body is located at the bottom of the rod; The support is located on the base and below the press-fit body.

[0005] In addition, the above embodiments of this utility model may also have the following additional technical features: According to one embodiment of the present invention, the connecting arm has a bend-shaped structure, with an arc-shaped bend in its middle, and the bend facing outward. The outward-facing bend optimizes the connection angle between the connecting arm and the operating handle and rod, making force transmission smoother, thereby reducing jamming or resistance during operation and making the pressing process smoother.

[0006] In one embodiment, the distance from the center of the bend to the upper end of the linkage arm is less than the distance from the center of the bend to the lower end of the linkage arm. When the operating handle is pulled downwards, the lower end of the linkage arm moves a larger distance, but the upper end moves a smaller distance, thereby amplifying the applied force. This allows the user to generate a larger pressing force with only a smaller force, further saving effort.

[0007] According to one embodiment of this utility model, a pair of guide posts are further provided on the base, and a displacement seat that can slide up and down is sleeved on the two guide posts. The tops of the two guide posts are connected to a cap, and the end of the rod passes through the cap and is connected to the displacement seat. The guide posts and displacement seat provide precise vertical guidance for the rod, preventing the rod from deviating or wobbling during movement, ensuring the vertical movement of the pressed body, and improving the pressing accuracy.

[0008] In one embodiment, one of the guide posts movably extends through the shelf, allowing the shelf to reciprocate about the guide post as its center of rotation. This rotatability of the shelf facilitates easy placement and removal of workpieces by the user, improving operational convenience and efficiency.

[0009] According to one embodiment of this utility model, the upright frame includes a pair of mirror-shaped support bodies. The upper parts of both support bodies extend outward and bend, connecting together to a mounting plate. A hinge seat is provided on the mounting plate, and the rod body movably passes through the hinge seat. The side arm of the operating handle is hinged to the hinge seat. The support bodies and the mounting plate form a robust frame that can withstand large stresses during pressing, preventing deformation or swaying of the upright frame. The bent design of the mounting plate avoids affecting the working state of the rod body and the connecting arm.

[0010] According to one embodiment of this utility model, the two ends of the spring are respectively connected to a first limiting body and a second limiting body. The first limiting body is fixed to the rod, and the second limiting body is fixed to the upright, with the rod moving through the second limiting body. The two limiting bodies fix the position of the spring, preventing the spring from shifting or falling off during movement and avoiding affecting the return function of the rod.

[0011] According to one embodiment of this utility model, the operating handle further includes a roller body disposed between the two side arms, and the roller body is rotatably connected to the side arms. The roller body serves as a grip, allowing the user to apply force by rolling, reducing friction between the hand and the operating handle, making operation more comfortable and suitable for prolonged use.

[0012] According to one embodiment of this utility model, the bottom end of the base is provided with several support feet. The support feet provide stable support, prevent the device from moving or tilting during operation, reduce the risk of slippage, and ensure the stability of the pressing process.

[0013] On the other hand, a manual pressing machine is also involved, employing the pressing assembly device as described above, and further including an upper die and a lower die. The upper die is connected to the pressing body, and the lower die is disposed on the support. The upper die and the lower die are respectively provided with an annular boss and an annular positioning groove that can form a clearance fit. The clearance fit between the annular boss and the annular positioning groove ensures that the upper die and the lower die are precisely aligned during pressing, preventing workpiece displacement during pressing and improving pressing accuracy and finished product yield.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the lever mechanism of the operating handle and the connecting arm, the lever force applied by the user is converted into the vertical pressing force of the rod, reducing the force required by the user. Compared with the direct pressing structure, the user does not need to apply a large vertical pressure directly, making the operation easier; the connecting arm evenly transmits the force of the operating handle to the rod, avoiding the problem of uneven force application caused by a single force path, improving the pressing stability, and preventing the workpiece from being damaged due to uneven force; the overall pressing assembly device has a compact structure, is easy to manufacture and maintain, reduces costs, and also improves the consistency and reliability of the pressing process. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of a pressing assembly device according to Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the relationship between the operating handle, the lever, and the connecting arm in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the linkage between the operating handle and the connecting arm in Embodiment 1 of this utility model. Figure 4 This is a schematic diagram of the guide post portion in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the support frame portion of Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of a manual pressing machine according to Embodiment 2 of this utility model; The relevant markings in the attached diagram are as follows: 1-base, 2-stand, 3-rod, 4-operating handle, 5-linkage arm, 6-pressing body, 7-support seat, 8-upper mold, 9-lower mold; 11-guide post, 12-top, 13-displacement seat, 14-support foot, 21-support body, 22-mounting plate, 23-hinge seat, 31-spring component, 32-first limit body, 33-second limit body, 34-horizontal shaft, 41-side arm, 42-roller body, 51-turn, 81-annular boss, 91-annular positioning groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: like Figure 1 and Figure 5 As shown, this embodiment provides a pressing assembly device. The main supporting structure is a sturdy base 1, which is typically made of metal sheet through cutting and bending, or cast from materials such as cast iron, to ensure the stability and vibration resistance of the entire device during operation. Several support feet 14 are provided at the four corners or appropriate positions on the bottom surface of the base 1. These support feet can be made of elastic materials such as rubber or engineering plastics. The advantages of this design are: first, it prevents the equipment from sliding on the worktable by increasing friction; second, it absorbs and isolates the minor impacts and vibrations generated during pressing; and third, it raises the bottom of the base, making it easier to clean up any debris that may fall.

[0018] A support frame 2 is fixedly installed on one side of the base 1, serving as a supporting skeleton. In this embodiment, the support frame 2 preferably includes a pair of mirror-symmetrically arranged support bodies 21. These two support bodies 21 can be vertical plate-like structures, which are firmly fixed to the base by welding, riveting, or bolting. To simplify assembly, the upper parts of the two support bodies 21 can extend and bend inward or outward, and connect together to a horizontal mounting plate 22. This plate concentrates the forces distributed on the two support bodies onto a rigid platform, and the mounting plate 22 is perpendicular to the surface of the base 1 in space.

[0019] A hinge seat 23 is fixedly installed in the middle of the mounting plate 22. The hinge seat 23 has a top surface and two sides. A vertical rod 3 moves downward through the top surface of the hinge seat 23. A linear bearing or high-precision bushing can be added between the rod 3 and the hinge seat 23 to ensure that the rod can only make smooth low-friction movement in the vertical direction without rotation or lateral wobbling.

[0020] Reference Figure 2As shown, a spring 31, preferably a compression spring, is sleeved on the upper part of the rod 3. The two ends of the spring 31 are fixed by a first limiting body 32 (e.g., a retaining ring fitted and fixed to the rod) and a second limiting body 33 (e.g., fixed to the top surface of the hinge seat). The second limiting body 33 has a central opening, allowing the rod 3 to pass freely through it. When the rod 3 is pushed downwards, the spring 31 is compressed, storing elastic potential energy; when the downward force is released, the spring 31 releases its potential energy, pushing the first limiting body 32 and causing the rod to move upwards, returning it to its initial position.

[0021] The design focuses on a new lever linkage system, which features an operating handle 4 with a pair of mirror-symmetrical side arms 41. The lower ends of each side arm 41 can be hinged to the side of the hinge seat 23 of the upright frame 2 via pins. This allows the operating handle to be moved back and forth around a fixed hinge point, much like a pair of pliers or a wrench.

[0022] In addition, there is a pair of linkage arms 5 that are also mirror-arranged. The lower end of each linkage arm 5 is hinged to the other end of the lower part of the side arm 41 of the operating handle 4 (i.e. the end away from the hinge point with the upright), while the upper ends of the two linkage arms 5 are connected to the top of the rod body 3 by a horizontal shaft 34.

[0023] Reference Figure 3 As shown, the working mode of the operating handle 4 and the connecting arm 5 is as follows: When the operator pulls the operating handle 4 inward, the side arm 41 of the operating handle 4 rotates around its hinge point with the upright 2. This rotation will pull the lower ends of the two connecting arms 5 through the hinge point, forcing the lower ends of the connecting arms 5 to move downward. Since the upper ends of the connecting arms 5 are hinged to the top of the rod 3, they will apply a downward pulling force to the rod 3, overcoming the resistance of the spring and forcibly forcing the rod 3 to move vertically downward. During this process, the long lever arm and the precise lever ratio of the operator's arm make it possible to generate a strong vertical downward pressing force at the end of the rod with a small horizontal pulling force, which is several times the force, thus achieving the pressing effect. Conversely, when the operator stops applying force to the operating handle, the rod will automatically return to the initial position under the action of the spring, and drive the connecting arm and the operating handle to return to the initial position.

[0024] To optimize force transmission and make the movement smoother, the connecting arm 5 is designed with a bend-shaped structure. It has a smooth arc-shaped bend 51 in the middle, and the bend 51 is set outward. This streamlined design is not only aesthetically pleasing, but more importantly, it can effectively disperse the stress concentration inside the connecting arm when it is under force, avoid cracks at right angles or acute angles, and extend the fatigue life of the components.

[0025] Furthermore, the distance from the center of the bend 51 to the upper end of the connecting arm 5 is less than the distance from the center of the bend 51 to the lower end of the connecting arm 5. This asymmetrical arm length design achieves a better leverage ratio. When the operating handle is turned, the lower end of the connecting arm has a larger displacement, while the displacement transmitted to the upper end acting on the rod is relatively smaller, but the force is amplified. This achieves the effect of "small stroke but large force", which is very suitable for precision pressing applications that require large pressing force but short stroke, further improving the effort-saving operation.

[0026] At the bottom of the rod 3, a pressing body 6 is installed. The pressing body 6 is the component that directly performs the pressing action. Its lower end is usually designed with a standard interface (such as a threaded hole or quick-change interface) for installing a dedicated upper pressing die. On the base 1, directly below the pressing body 6, there is a support 7. The support is used to support and fix the lower pressing die. The workpiece is placed on the lower pressing die. When the upper pressing die moves downward under the drive of the rod, it applies pressure to the workpiece, making the object fit precisely.

[0027] Further, see Figure 4 As shown, a pair of parallel guide posts 11 are vertically arranged on the base 1. These two guide posts 11 are symmetrically distributed on both sides of the rod. One end of each guide post is firmly fixed to the base 1, and the other end is connected to a cap 12 to form a sturdy gantry frame structure. A displacement seat 13 (or slider) is fitted on the two guide posts 11 and can slide precisely up and down along the guide posts. The end of the rod 3 passes through the through hole on the cap 12 and is firmly connected to the displacement seat 13.

[0028] In this way, the movement of the rod no longer depends solely on the guidance of the hinge seat, but is constrained by the guiding system composed of the displacement seat and the guide post. This eliminates the possibility of slight swaying of the rod in directions other than the vertical direction, ensuring that the movement trajectory of the pressed body is absolutely vertical. This effectively prevents workpiece displacement caused by pressing angle deviation.

[0029] As a further optimization, one of the guide posts 11 is movably inserted through the support 7. Specifically, the support can be fitted onto the guide post by a linear bearing or a smooth bushing, which allows the support to not only bear the function of supporting the workpiece, but also to reciprocate around the guide post as the center of rotation.

[0030] In this way, when placing or removing workpieces, the operator can easily rotate the support seat out of the pressing area below the pressing body, thereby obtaining a spacious and unobstructed operating space. After placing the workpiece, the support seat can be rotated back to directly under the pressing body. The guide post itself provides circumferential positioning for the support seat, ensuring that it can accurately return to the initial working position each time. In addition, this can also be converted into a dual pressing station, improving work efficiency.

[0031] In other embodiments, a roller 42 is added between the front ends of the two side arms 41 on the operating handle 4. This roller 42 is typically a metal or high-strength plastic tube, with both ends rotatably connected to the side arms 41 via bearings or simple bushing structures. This roller acts as a grip for the operator. When the operator turns the operating handle, the friction between the hand and the roller is rolling rather than sliding. This not only makes the operation smoother and less strenuous, but more importantly, it allows for fine-tuning of the operator's hand position during the application of force, avoiding discomfort or burning sensation caused by friction between the hand and the fixed grip. This is particularly suitable for high-intensity, repetitive production environments.

[0032] Example 2: This embodiment proposes a manual pressing machine, which mainly utilizes the design of the pressing assembly device as described in Embodiment 1. (See reference...) Figure 6 As shown, it is equipped with a special mold: an upper mold 8 is connected to the bottom of the press body 6, and a lower mold 9 is set on the support 7.

[0033] To achieve precise positioning and prevent the components to be pressed from shifting, an annular boss 81 is machined on the working surface of the upper die 8, and an annular positioning groove 91 that can form a precise clearance fit with the annular boss 81 is machined at the corresponding position of the lower die 9.

[0034] The pressing process is as follows: The operator first places the lower half of the component to be pressed into the annular positioning groove of the lower pressing mold, then places the upper half of the component to be pressed downwards into the housing, and then rotates the support back to the working position. When the operator turns the operating handle, the upper pressing mold presses down vertically and smoothly through the lever linkage and guiding system described in Embodiment 1. At the moment of contact with the workpiece, the annular boss of the upper pressing mold will accurately insert into the annular positioning groove of the lower pressing mold. This insertion process itself is an automatic centering and correction process, and the gap between the annular boss and the annular positioning groove is extremely small. It restricts the degree of freedom of the workpiece to move in the horizontal direction, so that the workpiece can only be pressed in place under vertical pressure and cannot produce lateral sliding.

[0035] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A pressing assembly device, comprising a base (1) and a support frame (2) mounted on the base (1), characterized in that, Also includes: The rod (3) is movably mounted on the frame (2). The rod (3) is configured to move vertically up and down relative to the frame (2) under the action of external force. A spring (31) is sleeved on the upper part of the rod (3) so that there is a restoring force between the rod (3) and the frame (2). The operating handle (4) has a pair of mirror-shaped side arms (41), the lower end of which is hinged to the stand (2); A pair of mirror-shaped connecting arms (5), the lower end of the connecting arm (5) is hinged to the other end of the lower part of the side arm (41), and the other ends of the two connecting arms (5) are hinged to the top of the rod (3). The press-fit body (6) is located at the bottom of the rod body (3); The support (7) is located on the base (1) and below the press body (6).

2. The pressing assembly device according to claim 1, characterized in that, The linkage arm (5) has a bend-shaped structure, with an arc-shaped bend (51) in its middle, and the bend (51) is arranged outward.

3. The pressing assembly device according to claim 2, characterized in that, The distance from the center of the bend (51) to the upper end of the connecting arm (5) is less than the distance from the center of the bend (51) to the lower end of the connecting arm (5).

4. The pressing assembly device according to claim 1, characterized in that, A pair of guide posts (11) are also provided on the base (1). A displacement seat (13) that can slide up and down is sleeved on the two guide posts (11). The tops of the two guide posts (11) are connected to a cap (12). The end of the rod (3) passes through the cap (12) and is connected to the displacement seat (13).

5. The pressing assembly device according to claim 4, characterized in that, One of the guide posts (11) is movably inserted through the shelf (7), and the shelf (7) can reciprocate about the guide post (11) as the center of rotation.

6. The pressing assembly device according to claim 1, characterized in that, The stand (2) includes a pair of mirror-shaped support bodies (21). The upper parts of the two support bodies (21) extend outward and bend together to connect to a mounting plate (22). A hinge seat (23) is provided on the mounting plate (22). The rod (3) passes through the hinge seat (23) movably. The side arm of the operating handle (4) is hinged to the hinge seat (23).

7. The pressing assembly device according to claim 1, characterized in that, The two ends of the spring (31) are respectively connected to the first limiting body (32) and the second limiting body (33). The first limiting body (32) is fixed on the rod (3), and the second limiting body (33) is fixed on the stand (2). The rod (3) moves through the second limiting body (33).

8. The pressing assembly device according to claim 1, characterized in that, The operating handle (4) also includes a roller (42) disposed between the two side arms (41), and the roller (42) is rotatably connected to the side arms (41).

9. The pressing assembly device according to claim 1, characterized in that, Several support feet (14) are provided at the bottom of the base (1).

10. A manual pressing machine, characterized in that, The application includes a pressing assembly device as described in any one of claims 1 to 8, and further includes an upper pressing mold (8) and a lower pressing mold (9). The upper pressing mold (8) is connected to the pressing body (6), and the lower pressing mold (9) is disposed on the support (7). The upper pressing mold (8) and the lower pressing mold (9) are respectively provided with an annular boss (81) and an annular positioning groove (91) that can form a clearance fit.

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