An assembly machine for pre-pressing a plug

Abstract

The application provides an assembly machine for pre-pressing a plug, which comprises a base for support, a disc assembly for driving a workpiece to rotate, a plurality of mounting plates for placing the workpiece, and a feeding assembly for feeding the plug, the disc assembly is installed at the middle of the upper end of the base, a plurality of the mounting plates are annularly arranged on the upper end of the disc assembly, the feeding assembly is installed at one side of the base, and a pressing assembly for pre-pressing the plug is installed at one side of the upper end of the base. The guiding structure of the pressing assembly ensures that the plug is accurately pressed into the workpiece and stable pressure is applied, the glue is uniformly spread and air bubbles are discharged, the bonding strength and consistency are significantly improved, meanwhile, the positioning assembly effectively eliminates vibration and absorbs the impact energy of the pressing assembly by covering the workpiece, the operation noise and vibration of the equipment are greatly reduced, a stable foundation is provided for the riveting and pressing process, and the operation stability and pre-pressing precision of the equipment are improved as a whole.

Description

Technical Field

[0001] This utility model relates to the field of mechanical automation assembly technology, and more specifically, to a pre-pressing mechanism for a block in an assembly machine. Background Technology

[0002] As a key mechanical connector, the assembly quality of the flexible pin directly affects the reliability and service life of the entire product. A typical flexible pin assembly process first uses a vibratory feeder to automatically feed the bolts to the workpiece base, then installs the internal components such as pins and springs in sequence, then automatically glues the plug and presses it onto the open end of the component, and finally completes the permanent fixation through a riveting process. In this process, the pre-pressing process is used to accurately press the plug into the designated position before riveting, so that the glue is evenly distributed and initially fixed, while the final riveting process is used to plastically deform the end of the plug, completely fix the internal components, and prevent them from loosening under vibration.

[0003] Traditional pre-pressing mechanisms often use a single pressure rod for direct pressing during the assembly process. Without precise guiding contact between the pressure rod, the plug, and the workpiece, misalignment, misalignment, or even jamming can easily occur during pressing, affecting the pressing quality. Furthermore, the workpiece is prone to slight movement or overall displacement during pressing, causing the plug to not be accurately pressed into the designated position, resulting in poor repeatability and impacting the connection strength and reliability of the product. Therefore, we have made improvements and proposed a plug pre-pressing mechanism for assembly machines. Summary of the Invention

[0004] The purpose of this utility model is to address the problem that traditional pre-pressing mechanisms often use a single pressure rod for direct pressing during the pressing process. There is no precise guiding fit between the pressure rod, the plug, and the workpiece. During the pressing process, the plug is prone to skew, misalignment, or even jamming, which affects the pressing quality. Furthermore, the workpiece is prone to micro-movement or overall displacement during the pressing process, which causes the plug to not be accurately pressed into the designated position, resulting in poor repeatability and affecting the connection strength and reliability of the product.

[0005] To achieve the above-mentioned objectives, this invention provides a pre-compression mechanism for a block in an assembly machine, thereby improving the aforementioned problems.

[0006] The application is as follows:

[0007] A pre-compression mechanism for a block in an assembly machine includes a base for support, a disc assembly for rotating a workpiece, multiple mounting plates for placing the workpiece, and a material injection assembly for feeding the block. The disc assembly is mounted at the middle of the upper end of the base, the multiple mounting plates are arranged in a ring array on the upper end of the disc assembly, the material injection assembly is mounted on one side of the base, a pressing assembly for pre-compressing the block is mounted on one side of the upper end of the base, a positioning assembly for pressing and fixing the block is mounted at the middle of the base, and a control panel is fixedly mounted on the upper end of the base.

[0008] As a preferred technical solution of this application, the pressing assembly includes a mounting shell, which is fixedly connected to one side of the upper end of the base. A first cylinder is fixedly installed on one side of the upper end of the mounting shell. The output end of the first cylinder passes through the mounting shell. A pressure plate is fixedly connected to the output end of the first cylinder. A pressure rod is fixedly connected to the center of the lower end of the pressure plate.

[0009] As a preferred technical solution of this application, the lower end of the pressure plate is fixedly connected to two guide rods, the two guide rods are symmetrically arranged on both sides of the pressure rod, and the upper end of the mounting plate is provided with two symmetrically arranged guide holes, the two guide rods are respectively matched with the two guide holes.

[0010] As a preferred technical solution of this application, the upper end of the mounting shell is fixedly fitted with two symmetrically arranged guide sleeves, and the upper end of the pressure plate is fixedly connected with two symmetrically arranged guide posts, and the two guide posts are slidably fitted inside the two guide sleeves respectively.

[0011] As a preferred technical solution of this application, the positioning component includes a mounting base, which is fixedly connected to the center of the upper end of the base and is located above the disc assembly. A connecting frame is fixedly connected to one side of the upper end of the mounting base, and a second cylinder is fixedly installed on the upper end of the connecting frame. The output end of the second cylinder passes through the connecting frame, and two symmetrically arranged guide rails are fixedly connected to one side of the connecting frame.

[0012] As a preferred technical solution of this application, the two guide rails are slidably connected to a lifting frame, the output end of the second cylinder is fixedly connected to the upper end of the lifting frame, and a positioning block is fixedly connected to one side of the lower end of the lifting frame. The positioning block has a positioning hole and a positioning groove on the inner wall of the positioning hole.

[0013] As a preferred technical solution of this application, the upper end of the positioning block is provided with an annular groove, and the bottom of the inner wall of the annular groove is fixedly connected with a plurality of dampers and a plurality of springs. The plurality of dampers are respectively sleeved inside the plurality of springs, and the upper ends of the plurality of dampers and the plurality of springs are fixedly connected with a buffer plate, which is arranged in an annular shape.

[0014] As a preferred technical solution of this application, an annular buffer pad is fixedly connected to the upper end of the buffer plate. The annular buffer pad is made of rubber. The buffer plate and the annular groove are matched. Multiple arrayed baffles are fixedly connected to the side wall of the pressure rod.

[0015] As a preferred technical solution of this application, universal wheels are fixedly connected to the four corners of the lower end of the base, and electric lifting feet are fixedly connected to the four corners of the lower end of the base.

[0016] As a preferred technical solution of this application, an adhesive application component for applying adhesive to the block is fixedly installed on the upper end of the base, and the adhesive application component is installed inside the mounting shell.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] To address the problems in existing pre-pressing mechanisms where a single pressure rod is used for direct pressing during the pressing process, resulting in a lack of precise guiding fit between the pressure rod, the plug, and the workpiece, the plug is prone to skewing, misalignment, or even jamming during pressing, thus affecting the pressing quality. Furthermore, the workpiece is susceptible to fretting or overall displacement during pressing, leading to inaccurate pressing of the plug into the designated position, poor repeatability, and impacting the connection strength and reliability of the product. This application addresses these issues by incorporating a guide rod and guide hole. This allows the pressure rod to smoothly and accurately press the plug into the predetermined position of the workpiece, applying a stable and controllable initial pressure. Pressure allows the adhesive to spread evenly between the plug and the workpiece, expelling air bubbles and forming a uniform adhesive layer. This greatly improves the strength and consistency of the bond, providing a stable and reliable foundation for final riveting. After the plug is placed inside the workpiece, the positioning component is fitted onto the outside of the workpiece, achieving complete coverage of the upper end of the workpiece before pre-pressing. This effectively eliminates any movement or vibration of the workpiece and the plug during the pressing process, providing a solid foundation for high-precision pre-pressing. At the same time, the positioning component effectively absorbs the impact kinetic energy when the pressing component is in place, greatly eliminating vibration and noise during equipment operation and improving the overall stability of the machine. Attached Figure Description

[0020] Figure 1 A schematic diagram of the main structure of the pre-compression mechanism for the assembly machine provided in this application;

[0021] Figure 2 Exploded view of the pressing component and positioning component of the pre-pressing mechanism for the assembly machine block provided in this application;

[0022] Figure 3 A schematic diagram of the guide hole structure for the pre-compression mechanism of the plug for the assembly machine provided in this application;

[0023] Figure 4A schematic diagram of the pressing component structure of the pre-pressing mechanism for the blockage of the assembly machine provided in this application;

[0024] Figure 5 A schematic diagram of the positioning component structure of the pre-compression mechanism for the assembly machine provided in this application;

[0025] Figure 6 A schematic diagram of the spring and damper structure of the pre-compression mechanism for the assembly machine provided in this application.

[0026] The image shows:

[0027] 1. Base; 2. Disc assembly; 3. Mounting plate; 4. Injection assembly;

[0028] 5. Pressing assembly; 501. Mounting housing; 502. First cylinder; 503. Pressure plate; 504. Pressure rod; 505. Guide rod; 506. Guide hole; 507. Guide sleeve; 508. Guide post;

[0029] 6. Positioning assembly; 601. Mounting base; 602. Connecting frame; 603. Second cylinder; 604. Guide rail; 605. Lifting frame; 606. Positioning block; 607. Positioning hole; 608. Positioning groove; 609. Annular groove; 610. Damper; 611. Spring; 612. Buffer plate; 613. Annular buffer pad; 614. Stop bar;

[0030] 7. Control panel; 8. Casters; 9. Electric lifting feet; 10. Adhesive application assembly. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0032] As described in the background art, traditional pre-pressing mechanisms often use a single pressure rod to directly press in the press-fitting process. There is no precise guiding fit between the pressure rod, the plug, and the workpiece. During the pressing process, the plug is prone to skew, misalignment, or even jamming, which affects the pressing quality. Furthermore, the workpiece is prone to micro-movement or overall displacement during the pressing process, which causes the plug to fail to be pressed into the designated position accurately, resulting in poor repeatability and affecting the connection strength and reliability of the product.

[0033] To solve this technical problem, this utility model provides a pre-compression mechanism for a plug block in an assembly machine, which is applied to the pre-compression of plug blocks in an elastic pin assembly machine.

[0034] For details, please refer to Figures 1-6 The pre-compression mechanism for the assembly machine includes:

[0035] The base 1 is used for support, the disc assembly 2 is used to drive the workpiece to rotate, the mounting plates 3 for placing the workpiece, and the injection assembly 4 is used to feed the block. The disc assembly 2 is installed at the middle of the upper end of the base 1. The mounting plates 3 are arranged in a ring array on the upper end of the disc assembly 2. The injection assembly 4 is installed on one side of the base 1. The pressing assembly 5 for pre-pressing the block is installed on one side of the upper end of the base 1. The positioning assembly 6 for pressing and fixing the block is installed in the middle of the base 1. The control panel 7 is fixedly installed on the upper end of the base 1.

[0036] The pre-pressing mechanism for the block in the assembly machine provided by this utility model uses the pressing component 5 to pre-press the workpiece above the mounting plate 3. This allows the block placed above the workpiece to be smoothly and accurately pressed into a predetermined position, applying a stable and controllable initial pressure. At the same time, it allows the adhesive to spread evenly between the block and the workpiece, expelling air bubbles and forming a uniform adhesive layer, which greatly improves the bonding strength and consistency, providing a stable and reliable foundation for the final riveting. After the block is placed inside the workpiece, the positioning component 6 is sleeved on the outside of the workpiece, achieving complete coverage of the upper end of the workpiece before pre-pressing. This effectively eliminates any movement or vibration of the workpiece and the block during the pressing process, providing a solid foundation for pre-pressing. At the same time, the positioning component 6 effectively absorbs the impact kinetic energy when the pressing component 5 is in place, greatly eliminating vibration and noise during equipment operation and improving the stability of the entire machine.

[0037] It is worth noting that the disc assembly 2, the injection assembly 4, and the control panel 7 are all existing technologies. The disc assembly 2 is the core conveying system of the equipment, consisting of a precision divider, a drive motor, and a ring turntable. The ring turntable is hollow and its working principle is to receive PLC pulse signals through the divider to achieve precise intermittent indexing motion, driving the mounting plate 3 of the ring array to pass through each station in sequence. The injection assembly 4 is an automatic feeding unit, including a vibratory feeder, a linear vibratory guide rail, and detection sensors. Through vibration sorting and the guide rail and conveyor, the block is oriented and conveyed to the designated position, and the sensor provides feedback on the feeding status. The control panel 7 integrates a PLC controller and a touch screen human-machine interface. Through programming, it coordinates the divider station switching, cylinder action timing, and sensor signal interaction to realize the automated cyclic control and parameter setting of the entire processing flow. In addition, the upper end of the base 1 is also equipped with processing components for sequentially loading internal components such as pins and nuts, which will not be described in detail here.

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] Example 1, please refer to Figures 1-6 A pre-compression mechanism for a block in an assembly machine includes a base 1 for support, a disc assembly 2 for rotating a workpiece, multiple mounting plates 3 for placing the workpiece, and a material injection assembly 4 for feeding the block. The disc assembly 2 is mounted at the upper middle of the base 1, the multiple mounting plates 3 are arranged in a ring array on the upper end of the disc assembly 2, the material injection assembly 4 is mounted on one side of the base 1, a pressing assembly 5 for pre-compressing the block is mounted on one side of the upper end of the base 1, and a positioning assembly 6 for pressing and fixing the block is mounted in the middle of the base 1. A control panel 7 is fixedly installed on the upper end of the base 1. The disc assembly 2, supported by the base 1, drives the ring-shaped mounting plates 3 to flow to each station through intermittent rotation. After the injection assembly 4 delivers the block to the corresponding station, the positioning assembly 6 first moves down to fix the workpiece, and then the pressing assembly 5 performs a vertical pressing action to complete the pre-pressing. The whole process is centrally controlled by the control panel 7, realizing continuous automated production at multiple stations and greatly improving efficiency. At the same time, the collaborative operation of each component ensures the accuracy and stability of the block pressing, providing a high-quality foundation for subsequent processes.

[0042] Furthermore, such as Figures 3-4 As shown, the pressing assembly 5 includes a mounting shell 501, which is fixedly connected to one side of the upper end of the base 1. A first cylinder 502 is fixedly installed on one side of the upper end of the mounting shell 501. The output end of the first cylinder 502 passes through the mounting shell 501. A pressure plate 503 is fixedly connected to the output end of the first cylinder 502. A pressure rod 504 is fixedly connected to the center of the lower end of the pressure plate 503. The first cylinder 502 provides power to drive the pressure plate 503 and the pressure rod 504 to perform a pressing action, thereby pre-pressing the block.

[0043] Furthermore, such as Figures 3-4As shown, two guide rods 505 are fixedly connected to the lower end of the pressure plate 503. The two guide rods 505 are symmetrically arranged on both sides of the pressure rod 504. Two guide holes 506 are symmetrically arranged on the upper end of the mounting plate 3. The two guide rods 505 are matched with the two guide holes 506 respectively. During the pressing process of the pressure rod 504, the guide rods 505 are inserted into the guide holes 506 first to form rigid guidance, forcibly constrain the movement trajectory of the pressure rod 504, eliminate radial offset and shaking during the pressing process, ensure the verticality of the pressure rod 504 and the absolute centering with the workpiece, thereby eliminating the risk of bias pressure and greatly improving the pressing position accuracy and product consistency.

[0044] Furthermore, such as Figure 4 As shown, two symmetrically arranged guide sleeves 507 are fixedly sleeved on the upper end of the mounting shell 501, and two symmetrically arranged guide posts 508 are fixedly connected to the upper end of the pressure plate 503. The two guide posts 508 are slidably sleeved inside the two guide sleeves 507 respectively. When the first cylinder 502 drives the pressure plate 503 to press down, the guide posts 508 slide vertically along the inner wall of the guide sleeves 507, forming a primary guide away from the workpiece. This effectively eliminates the movement deviation caused by the swing of the first cylinder 502 itself and the installation gap, ensuring the verticality and stability of the overall movement of the pressing assembly 5, thereby protecting the first cylinder 502 and extending its service life.

[0045] Example 2 further optimizes the pre-compression mechanism for the assembly machine block provided in Example 1. Specifically, as follows: Figures 1-6 As shown, the positioning component 6 includes a mounting base 601, which is fixedly connected to the center of the upper end of the base 1 and is located above the disc component 2. A connecting frame 602 is fixedly connected to one side of the upper end of the mounting base 601. A second cylinder 603 is fixedly mounted on the upper end of the connecting frame 602, and the output end of the second cylinder 603 passes through the connecting frame 602. Two symmetrically arranged guide rails 604 are fixedly connected to one side of the connecting frame 602. A lifting frame 605 is slidably connected to the outside of the two guide rails 604. The output end of the second cylinder 603 is fixedly connected to the upper end of the lifting frame 605. A positioning block 606 is fixedly connected to one side of the lower end of the lifting frame 605. The positioning block 606 has a positioning hole 607. The inner wall of the positioning hole 607 is provided with a positioning groove 608. When the second cylinder 603 starts to work, the output end of the second cylinder 603 pushes the lifting frame 605 to move vertically downward along the two guide rails 604. The guide rails 604 ensure that the lifting frame 605 moves without shaking. The positioning block 606 fixed at the lower end of the lifting frame 605 descends accordingly. The positioning hole 607 and positioning groove 608 at the lower end of the positioning block 606 are precisely fitted into and cover the outer contour of the workpiece, completely restricting the degree of freedom of the workpiece and fixing the workpiece in the mounting plate 3, providing an absolutely stable foundation for subsequent pre-pressing and improving the accuracy of subsequent pre-pressing. The mounting base 501 passes through the center of the annular turntable of the disc assembly 2 and is fixedly connected to the upper end of the base 1.

[0046] Example 3 further optimizes the pre-compression mechanism for the assembly machine block provided in Example 1, specifically, as follows: Figure 4 and Figure 6 As shown, the upper end of the positioning block 606 has an annular groove 609. Multiple dampers 610 and multiple springs 611 are fixedly connected to the bottom of the inner wall of the annular groove 609. The multiple dampers 610 are respectively sleeved inside the multiple springs 611. A buffer plate 612 is fixedly connected to the upper ends of the multiple dampers 610 and multiple springs 611. The buffer plate 612 is annularly arranged, and an annular buffer pad 613, made of rubber, is fixedly connected to the upper end of the buffer plate 612. The buffer plate 612 matches the annular groove 609. Multiple arrayed stop bars 614 are fixedly connected to the side wall of the pressure rod 504. When the pressure rod 504 is pressed down to its position, the stop bars on the side wall of the pressure rod 504... 614 will contact and impact the annular buffer pad 613 at the upper end of the positioning block 606. The impact force is transmitted to the buffer plate 612 through the annular buffer pad 613, which in turn compresses the multiple springs 611 and dampers 610 in the lower layer. The springs 611 provide elastic buffering to absorb the impact energy, while the dampers 610 provide resistance to quickly dissipate the kinetic energy and prevent rebound. This allows the preload to be applied smoothly and gently, rather than with a rigid impact, ensuring that the glue spreads evenly and air is expelled. At the same time, it effectively absorbs the impact kinetic energy when the pressure rod 504 is in place. This not only provides buffer protection for the pressure rod 504, but also greatly eliminates vibration and noise during equipment operation, improving the stability of the entire machine.

[0047] Furthermore, such as Figure 1 and Figure 2 As shown, casters 8 are fixedly connected to the four corners of the lower end of the base 1, and electric lifting feet 9 are fixedly connected to the four corners of the lower end of the base 1. The casters 8 enable flexible movement and position adjustment of the equipment, and the electric lifting feet 9 lift the base 1 away from the wheels and contact the ground after it is in place, ensuring the overall stability of the equipment.

[0048] Furthermore, such as Figure 2 As shown, a glue application assembly 10 for applying adhesive to the block is fixedly installed on the upper end of the base 1. The glue application assembly 10 is installed inside the mounting housing 501. Before the block enters the pre-pressing station, the glue application assembly 10 performs precise dispensing or coating operations, applying the glue evenly to the surface of the block. The glue application assembly 10, as existing technology, includes a glue tank, a metering pump, a dispensing valve, and a nozzle. The working principle is to draw glue from the glue tank through the metering pump, and control the opening and closing sequence of the dispensing valve by the PLC to accurately apply a predetermined amount of glue to the surface of the block to be bonded through the nozzle, thus realizing the automation, quantitative supply and precise application of glue. This will not be elaborated further here.

[0049] The usage process of the pre-compression mechanism for the assembly machine provided by this utility model is as follows:

[0050] When the blocking plate needs to be pre-pressed into the workpiece above the mounting plate 3, the second cylinder 603 starts to work. The output end of the second cylinder 603 pushes the lifting frame 605 to move vertically downward along the two guide rails 604. The guide rails 604 ensure that the lifting frame 605 moves without shaking. The positioning block 606 fixed at the lower end of the lifting frame 605 descends accordingly. The positioning hole 607 and positioning groove 608 at the lower end of the positioning block 606 accurately fit into and cover the outer contour of the workpiece, completely restricting the degree of freedom of the workpiece and fixing the workpiece in the mounting plate 3. This provides an absolutely stable foundation for subsequent pre-pressing and improves the accuracy of subsequent pre-pressing.

[0051] Subsequently, driven by the first cylinder 502, the pressure plate 503 begins to move downward. The two guide posts 508 at the upper end of the pressure plate 503 slide within the guide sleeve 507 fixed to the mounting shell 501, ensuring the verticality of the overall movement of the pressure plate 503 and overcoming the possible swaying of the first cylinder 502 itself. The two guide rods 505 at the lower end of the pressure plate 503 will be inserted into the guide holes 506 on the mounting plate 3 in advance during the pressing process, forming a more precise and closer guiding mechanism to the workpiece, ensuring the concentricity of the pressure rod 504 with the workpiece and the block, eliminating the risk of pressure deviation. With the protection of the double guide, the pressure rod 504 contacts the block vertically downward and presses it smoothly into the workpiece base.

[0052] When the pressure rod 504 is pressed down into place, the stop bar 614 on the side wall of the pressure rod 504 will contact and impact the annular buffer pad 613 at the upper end of the positioning block 606. The impact force is transmitted to the buffer plate 612 through the annular buffer pad 613, which in turn compresses the multiple springs 611 and dampers 610 in the lower layer. The springs 611 provide elastic buffering to absorb the impact energy, while the dampers 610 provide resistance to quickly dissipate the kinetic energy and prevent rebound. This allows the preload to be applied smoothly and gently, rather than with a rigid impact, ensuring that the glue spreads evenly and air is expelled. At the same time, it effectively absorbs the impact kinetic energy when the pressure rod 504 is in place. This not only achieves buffer protection for the pressure rod 504, but also greatly eliminates vibration and noise during equipment operation, improving the stability of the entire machine.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A pre-compression mechanism for a block in an assembly machine, characterized in that, It includes a base (1) for support, a disc assembly (2) for rotating the workpiece, multiple mounting plates (3) for placing the workpiece, and a material injection assembly (4) for feeding the block. The disc assembly (2) is installed at the middle of the upper end of the base (1). Multiple mounting plates (3) are arranged in a ring array on the upper end of the disc assembly (2). The material injection assembly (4) is installed on one side of the base (1). A pressing assembly (5) for pre-pressing the block is installed on one side of the upper end of the base (1). A positioning assembly (6) for pressing and fixing the block is installed in the middle of the base (1). A control panel (7) is fixedly installed on the upper end of the base (1).

2. The pre-compression mechanism for a block in an assembly machine according to claim 1, characterized in that, The pressing assembly (5) includes a mounting shell (501), which is fixedly connected to one side of the upper end of the base (1). A first cylinder (502) is fixedly installed on one side of the upper end of the mounting shell (501). The output end of the first cylinder (502) passes through the mounting shell (501). A pressure plate (503) is fixedly connected to the output end of the first cylinder (502). A pressure rod (504) is fixedly connected to the center of the lower end of the pressure plate (503).

3. The pre-compression mechanism for a block in an assembly machine according to claim 2, characterized in that, The lower end of the pressure plate (503) is fixedly connected to two guide rods (505), which are symmetrically arranged on both sides of the pressure rod (504). The upper end of the mounting plate (3) has two symmetrically arranged guide holes (506), and the two guide rods (505) are respectively matched with the two guide holes (506).

4. The pre-compression mechanism for a block in an assembly machine according to claim 2, characterized in that, The upper end of the mounting shell (501) is fixedly fitted with two symmetrically arranged guide sleeves (507), and the upper end of the pressure plate (503) is fixedly connected with two symmetrically arranged guide posts (508), and the two guide posts (508) are slidably fitted inside the two guide sleeves (507).

5. The pre-compression mechanism for a block in an assembly machine according to claim 2, characterized in that, The positioning component (6) includes a mounting base (601), which is fixedly connected to the center of the upper end of the base (1) and is located above the disc component (2). A connecting frame (602) is fixedly connected to one side of the upper end of the mounting base (601). A second cylinder (603) is fixedly installed on the upper end of the connecting frame (602). The output end of the second cylinder (603) passes through the connecting frame (602). Two symmetrically arranged guide rails (604) are fixedly connected to one side of the connecting frame (602).

6. The pre-compression mechanism for a block in an assembly machine according to claim 5, characterized in that, The two guide rails (604) are slidably connected to a lifting frame (605). The output end of the second cylinder (603) is fixedly connected to the upper end of the lifting frame (605). A positioning block (606) is fixedly connected to one side of the lower end of the lifting frame (605). A positioning hole (607) is provided on the positioning block (606), and a positioning groove (608) is provided on the inner wall of the positioning hole (607).

7. The pre-compression mechanism for a block in an assembly machine according to claim 6, characterized in that, The positioning block (606) has an annular groove (609) at its upper end. Multiple dampers (610) and multiple springs (611) are fixedly connected to the bottom of the inner wall of the annular groove (609). The multiple dampers (610) are respectively sleeved inside the multiple springs (611). The upper ends of the multiple dampers (610) and the multiple springs (611) are fixedly connected to a buffer plate (612), which is arranged in an annular shape.

8. The pre-compression mechanism for a block in an assembly machine according to claim 7, characterized in that, The upper end of the buffer plate (612) is fixedly connected to an annular buffer pad (613), which is made of rubber. The buffer plate (612) and the annular groove (609) are matched. Multiple arrayed baffles (614) are fixedly connected to the side wall of the pressure rod (504).

9. The pre-compression mechanism for a block in an assembly machine according to claim 1, characterized in that, The base (1) is fixedly connected to four corners at the bottom with casters (8) and electric lifting feet (9).

10. The pre-compression mechanism for a block in an assembly machine according to claim 2, characterized in that, The upper end of the base (1) is fixedly installed with an adhesive applicator (10) for applying adhesive to the block, and the adhesive applicator (10) is installed inside the mounting shell (501).

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