Seamless automatic butt joint machine for double-end grinding heads

Abstract

The invention discloses a seamless automatic butt joint machine for double-end grinding heads, and relates to the technical field of mold equipment. Comprising a working platform, and a fixed mold is fixed on the working platform; the movable butt-joint mold is connected to the working platform in a sliding mode and can move close to or away from the fixed mold, and the movable butt-joint mold and the fixed mold are provided with symmetrically-arranged positioning cavities; the double-end grinding wheel mechanism is connected with the lifting mechanism and located below the fixed die and the movable butt joint die, grinding ends on the two sides of the double-end grinding wheel mechanism are perpendicular to the positioning cavity, and the double-end grinding wheel mechanism can move up and down in the vertical direction of the working platform under driving of the lifting mechanism. And the grinding ends on the two sides correspond to the positioning cavities on the two sides respectively, so that the two sides are flatly ground at the same time, seamless butt joint is completed, butt joint and butt joint are achieved immediately, a product with the two flat ends can be extruded in a perfect butt joint mode, the butt joint precision is ensured, and seamless butt joint is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mold equipment, and more specifically to a double-end grinding head seamless automatic butt joint machine. Background Art

[0002] In the automotive field, sealing strips are one of the key components and are widely used in doors, windows, engine compartments, trunks and other parts. With the rapid development of the automotive industry, automotive sealing strips are an important part of the car, and their performance directly affects the sealing performance of the entire vehicle. The traditional processing technology of automotive sealing strips mainly has the following problems:

[0003] (1) In the traditional process, the sealing strips often need to be cut first and then enter the next step for bonding. During this process, the cut surface is easily contaminated by the external environment, such as the adhesion of impurities such as dust, which will reduce the freshness of the cut surface and affect the quality of subsequent bonding, and thus cannot meet the joint strength.

[0004] (2) During the cutting process, the flatness of the cutting surfaces of the two butt joints cannot be guaranteed, which makes the bonding marks obvious and cannot meet the requirements of seamless butt jointing. At the same time, it is difficult to ensure a uniform and strong bonding effect during the bonding process.

[0005] Therefore, how to provide a double-end grinding head seamless automatic butt jointing machine that can ensure the flatness of the cutting surfaces of the two butt joints, reduce the contamination of the cutting surfaces, and improve the bonding quality is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In view of this, the present invention provides a double-end grinding head seamless automatic butt joint machine, aiming to solve the above technical problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A double-end grinding head seamless automatic butt joint machine, comprising:

[0009] A working platform, wherein a lifting mechanism is installed at the bottom of the working platform;

[0010] A fixed mold, wherein the fixed mold is fixed on the working platform;

[0011] A mobile docking mold, the mobile docking mold is slidably connected to the working platform and can move toward or away from the fixed mold, and the mobile docking mold and the fixed mold have symmetrically arranged positioning cavities;

[0012] A double-end grinding wheel mechanism is connected to the lifting mechanism and is located below the fixed mold and the movable docking mold. The grinding ends on both sides of the double-end grinding wheel mechanism are arranged vertically with the positioning cavity. Driven by the lifting mechanism, the double-end grinding wheel mechanism can move up and down along the vertical direction of the working platform so that the grinding ends on both sides correspond to the positioning cavities on both sides respectively, thereby achieving simultaneous smooth grinding on both sides to complete seamless docking.

[0013] Through the above technical scheme, in a double-end grinding head seamless automatic docking machine provided by the present invention, the mobile docking mold can move towards or away from the fixed mold. This design can quickly complete the positioning and docking of the sealing strip, thereby improving production efficiency. The grinding ends on both sides of the double-end grinding wheel mechanism are arranged vertically to the positioning cavity. Through the precise control of the double-end grinding wheel mechanism, both sides can be smoothed and ground at the same time, and the grinding plane can be ground without tilting, thereby ensuring the flatness, parallelism and high precision of the two end surfaces of the ground product. The overall structural layout of the present invention is reasonable, and the structural coordination of each component realizes immediate grinding and docking, which can perfectly dock the products with flat ends extruded, ensure the docking accuracy of the two ends of the sealing strip, and achieve seamless docking.

[0014] Preferably, in the above-mentioned double-end grinding head seamless automatic docking machine, it also includes a docking clamping mechanism, the docking clamping mechanism includes a mounting seat, a first cylinder and a docking clamping plate, the mounting seat is slidably connected to the working platform, one side of the mounting seat is fixedly connected to a support frame, the first cylinder is installed on the support frame, the docking clamping plate is a plate-like component with a bending angle, and its bending part is hinged to the mounting seat, one end of the docking clamping plate is hinged to the telescopic end of the first cylinder, and the other end is arranged inclined upward, and the docking clamping plate is driven by the first cylinder so that its end away from the first cylinder is parallel to the fixed mold and the movable docking mold. The telescopic end of the first cylinder extends out, driving the docking splint to move downward and be located parallel to the fixed mold and the movable docking mold. During this process, the mounting seat does not slide. When the movable docking mold moves toward the fixed mold, the mounting seat is also driven to slide, so that the docking splint moves toward the fixed mold, so that the docking splint is clamped between the movable docking mold and the fixed mold, thereby making the grinding amount at both ends of the sealing strip the same, and achieving simultaneous grinding on both sides through the double-end grinding wheel mechanism to ensure that the grinding plane is not tilted.

[0015] Preferably, in the above-mentioned double-end grinding head seamless automatic docking machine, the lifting mechanism includes a fixed frame, a driving motor and a screw; the fixed frame is fixed to the bottom of the working platform, the driving motor is installed on the fixed frame, and its power output shaft is connected to a synchronous belt assembly through a coupling, one end of the screw is transmission-connected to the synchronous belt assembly, and the other end is rotationally connected to the top of the fixed frame; the outer side of the screw is threadedly connected to a sliding block, and the double-end grinding wheel mechanism is fixedly connected to the sliding block. The double-end grinding wheel mechanism can move up and down accurately to achieve accurate grinding of both ends of the sealing strip, and can stably control the rise and fall of the double-end grinding wheel mechanism. Through the precise control of the driving motor and the screw, the uniformity and repeatability of the grinding can be guaranteed, thereby achieving the grinding of the sealing strip.

[0016] Preferably, in the above-mentioned double-end grinding head seamless automatic docking machine, the double-end grinding wheel mechanism includes a mounting frame, a double-headed permanent magnet motor and a grinding wheel; the mounting frame is fixed on the sliding block, the double-headed permanent magnet motor is installed on the inner side of the mounting frame, the number of the grinding wheels is two, the two grinding wheels are connected to the power output shafts on both sides of the double-headed permanent magnet motor, and are arranged vertically with the positioning cavity. Grinding on both sides at the same time improves work efficiency; the use of permanent magnet motors can provide stable power output to ensure the continuity and stability of the grinding process; the lifting speed of the lifting mechanism can be adjusted according to the actual situation / different sealing strips, and the speed of the grinding wheel can also be adjusted according to the actual situation.

[0017] Preferably, in the above-mentioned double-end grinding head seamless automatic butt joint machine, baffles are detachably connected to both sides of the mounting frame, and a grinding wheel avoidance opening is provided on the top of the baffle. This structural setting can protect the grinding wheel from damage when not in operation, and is also convenient for replacement and maintenance.

[0018] Preferably, in the above-mentioned double-end grinding head seamless automatic butt jointing machine, a waste collection tray is detachably connected to the top of the mounting frame to collect the waste cut off after the butt jointing is completed.

[0019] Preferably, in the above-mentioned double-end grinding head seamless automatic butt joint machine, both sides of the mounting frame are connected with variable diameter dust suction short pipes, the inlet end of the variable diameter dust suction short pipe corresponds to the grinding wheel, and the outlet end is connected to the dust collector through a hose. Dust and debris generated during the grinding process can be sucked away in real time, further keeping the working environment clean and improving the quality of the working environment.

[0020] Preferably, in the above-mentioned double-end grinding head seamless automatic butt joint machine, an operating table is installed on the edge of the working platform close to the fixed mold, and a hanging frame is fixed on the top of the operating table. The setting of the operating table can facilitate the placement of related patches and the operation of operators. The setting of the hanging frame facilitates the hanging and positioning of the sealing strip and improves work efficiency.

[0021] Preferably, in the above-mentioned double-end grinding head seamless automatic butt jointing machine, the fixed mold and the movable butt jointing mold both include a lower mold and an upper mold that can be opened and closed relative to the lower mold.

[0022] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a double-end grinding head seamless automatic butt joint machine, which has the following beneficial effects:

[0023] 1. The present invention can ensure the docking accuracy of the two ends of the sealing strip and achieve seamless docking through the symmetrical arrangement of the fixed mold and the movable docking mold and the precise control of the double-end grinding wheel mechanism.

[0024] 2. The present invention can make the grinding amount of both ends of the sealing strip the same by setting the docking clamp, and cooperate with the double-end grinding wheel mechanism to realize simultaneous flat grinding of both sides, and the grinding plane is ground without tilting, thereby ensuring the flatness, parallelism and high precision of the two end surfaces of the ground product, reducing bonding marks and improving the appearance quality of the product.

[0025] 3. The present invention can ensure the consistency of the butt joint quality of each sealing strip by precisely controlling the grinding process, thereby improving the overall product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 The accompanying drawing is a front view of the double-end grinding head seamless automatic butt joint machine provided by the present invention;

[0028] Figure 2 The accompanying drawing is a structural schematic diagram of the double-end grinding head seamless automatic butt joint machine provided by the present invention without the working platform;

[0029] Figure 3 The accompanying drawings are schematic structural diagrams of the lifting mechanism and the double-head grinding wheel mechanism provided by the present invention;

[0030] Figure 4The accompanying drawing is a structural schematic diagram of the lifting mechanism and the double-head grinding wheel mechanism provided by the present invention from another angle;

[0031] Figure 5 The accompanying drawing is a structural schematic diagram of the butt joint splint and the fixed mold provided by the present invention in a parallel state;

[0032] Figure 6 The accompanying drawing is an axonometric view of the double-end grinding head seamless automatic butt joint machine provided by the present invention;

[0033] Figure 7 The attached picture is Figure 6 An enlarged view of section A in the accompanying drawings.

[0034] in:

[0035] 1- Working platform;

[0036] 11-operating table; 12-hanging frame; 121-stopper; 13-first slide rail; 131-first slider; 132-second slider; 14-second cylinder; 15-second slide rail; 16-support beam; 17-third cylinder; 18-operating box; 19-control box;

[0037] 2- Fix the mold;

[0038] 21-lower die; 22-upper die; 23-first support plate;

[0039] 3- Move the docking mold;

[0040] 31- second support plate;

[0041] 4- Positioning cavity;

[0042] 5- Double-ended grinding wheel mechanism;

[0043] 51-mounting frame; 52-double-headed permanent magnet motor; 53-grinding wheel; 54-baffle; 541-grinding wheel avoidance; 55-waste collection plate; 56-dust suction short pipe; 57-hose;

[0044] 6- Docking clamping mechanism;

[0045] 61-mounting seat; 611-support frame; 62-first cylinder; 63-docking splint;

[0046] 7- Lifting mechanism;

[0047] 71-fixed frame; 711-third slide rail; 712-bottom plate; 713-shock-absorbing foot pad; 72-driving motor; 73-screw rod; 74-synchronous belt assembly; 741-driving wheel; 742-driven wheel; 75-sliding block;

[0048] 8- Heating the mold;

[0049] 81 - upper heating block; 82 - lower heating block. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See attached Figure 1 -Attached Figure 7 The embodiment of the present invention discloses a double-end grinding head seamless automatic butt joint machine, comprising:

[0052] A working platform 1, a lifting mechanism 7 is installed at the bottom of the working platform 1;

[0053] A fixed mold 2, wherein the fixed mold 2 is fixed on the working platform 1;

[0054] The mobile docking mold 3 is slidably connected to the working platform 1 and can move toward or away from the fixed mold 2. The mobile docking mold 3 and the fixed mold 2 have symmetrically arranged positioning cavities 4;

[0055] The double-end grinding wheel mechanism 5 is connected to the lifting mechanism 7 and is located below the fixed mold 2 and the movable docking mold 3, that is, when the movable docking mold 3 is away from the fixed mold 2, the double-end grinding wheel mechanism 5 is located below the gap formed by the two. The grinding ends on both sides of the double-end grinding wheel mechanism 5 are arranged vertically with the positioning cavities 4 on both sides. Driven by the lifting mechanism 7, the double-end grinding wheel mechanism 5 can move up and down along the vertical direction of the working platform 1, so that the grinding ends on both sides correspond to the positioning cavities 4 on both sides respectively, so as to achieve simultaneous smooth grinding of both sides to complete seamless docking.

[0056] In order to further optimize the above technical solution, Figure 2 As shown, two first slide rails 13 arranged in parallel and spaced apart are fixed on the table top of the working platform 1, and a first slider 131 and a second slider 132 are slidably connected to the two first slide rails 13. The first slider 131 is fastened in place by bolts, the fixed mold 2 is fixed on the first slider 131, and the movable docking mold 3 is fixed on the second slider 132.

[0057] In order to further optimize the above technical solution, a second cylinder 14 is installed on the working platform 1, and the telescopic end of the second cylinder 14 is fixedly connected to the second slider 132. By controlling the extension and retraction of the telescopic end of the second cylinder 14, the second slider 132 can drive the mobile docking mold 3 to move towards or away from the fixed mold 2.

[0058] In order to further optimize the above technical solution, Figure 1 As shown, a first support plate 23 is fixed to a side of the fixed mold 2 away from the movable docking mold 3 , and a second support plate 31 is fixed to a side of the movable docking mold 3 away from the fixed mold 2 . The second support plate 31 is located above the second cylinder 14 .

[0059] In order to further optimize the above technical solution, it also includes a docking clamping mechanism 6, which includes a mounting seat 61, a first cylinder 62 and a docking clamping plate 63. The mounting seat 61 is slidably connected to the working platform 1, and one side of the mounting seat 61 is fixedly connected to a support frame 611. The first cylinder 62 is installed on the support frame 611. The docking clamping plate 63 is a plate-like component with a bending angle, and its bending part is hinged to the mounting seat 61. One end of the docking clamping plate 63 is hinged to the telescopic end of the first cylinder 62, and the other end is arranged tilted upward. Driven by the first cylinder 62, the docking clamping plate 63 has its end away from the first cylinder 62 and is located parallel to the fixed mold 2 and the movable docking mold 3.

[0060] In order to further optimize the above technical solution, Figure 2 As shown, a second slide rail 15 is fixed on the table of the working platform 1, and the mounting seat 61 is slidably connected to the second slide rail 15. When the first cylinder 62 drives the docking clamp 63 to be located between the end surfaces of the two positioning cavities 4 and parallel to the fixed mold 2 and the movable docking mold 3 (as shown in FIG. Figure 5 As shown in the figure, the telescopic end of the second cylinder 14 extends out, driving the second slider 132 to move toward the first slider 131, thereby driving the mobile docking mold 3 to move toward the fixed mold 2. During the movement of the mobile docking mold 3, the docking clamp 63 is driven to move toward the fixed mold 2, so that the docking clamp 63 is clamped between the fixed mold 2 and the mobile docking mold 3, and the grinding amount at both ends is controlled to be the same.

[0061] In order to further optimize the above technical solution, the lifting mechanism 7 includes a fixed frame 71, a driving motor 72 and a screw 73; the fixed frame 71 is fixed to the bottom of the working platform 1, the driving motor 72 is installed on the fixed frame 71, and its power output shaft is connected to the synchronous belt assembly 74 through a coupling, one end of the screw 73 is transmission connected to the synchronous belt assembly 74, and the other end is rotatably connected to the top of the fixed frame 71; the outer side of the screw 73 is threadedly connected to a sliding block 75, and the double-end grinding wheel mechanism 5 is fixedly connected to the sliding block 75.

[0062] In order to further optimize the above technical solution, Figure 4As shown, two third slide rails 711 spaced apart and arranged in parallel are fixed on the fixing frame 71, the two sides of the sliding block 75 are slidably connected to the two third slide rails 711, and the middle part is threadedly connected to the screw rod 73; the bottom of the bottom plate 712 below the fixing frame 71 is fixed with a shock-absorbing foot pad 713, and the shock-absorbing foot pad 713 is fixed on the support beam 16 at the bottom of the working platform 1, as shown in FIG. Figure 5 As shown; the synchronous belt assembly 74 includes a driving wheel 741, a driven wheel 742 and a synchronous belt (not shown in the figure), the driving wheel 741 is fixedly connected to the power output shaft of the driving motor 72, the driven wheel 742 is transmission-connected to the screw rod 73, and the synchronous belt is sleeved on the outside of the driving wheel 741 and the driven wheel 742 and tensioned; the driving motor 72 drives the driving wheel to rotate, and then drives the driven wheel to drive the screw rod to rotate, so as to realize the lifting and lowering of the sliding block 75 in the vertical direction.

[0063] In order to further optimize the above technical solution, the double-end grinding wheel mechanism 5 includes a mounting frame 51, a double-headed permanent magnet motor 52 and a grinding wheel 53; the mounting frame 51 is fixed on the sliding block 75, the double-headed permanent magnet motor 52 is installed on the inner side of the mounting frame 51, and the number of grinding wheels 53 is two. The two grinding wheels 53 are transmission connected to the power output shafts on both sides of the double-headed permanent magnet motor 52, and are arranged vertically to the positioning cavity 4.

[0064] In order to further optimize the above technical solution, baffles 54 are detachably connected to both sides of the mounting frame 51 , and a grinding wheel avoidance opening 541 is formed on the top of the baffle 54 .

[0065] In order to further optimize the above technical solution, a waste collection tray 55 is detachably connected to the top of the mounting frame 51 .

[0066] In order to further optimize the above technical solution, both sides of the mounting frame 51 are connected with a variable diameter dust suction short tube 56 , the inlet end of the variable diameter dust suction short tube 56 corresponds to the grinding wheel 53 , and the outlet end is connected to the vacuum cleaner through a hose 57 .

[0067] In order to further optimize the above technical solution, Figure 5 As shown, an operating table 11 is installed on the edge of the working platform 1 close to the fixed mold 2, and a hanging frame 12 is fixed on the top thereof. The hanging frame 12 is used to hang the sealing strip on the hanging frame 12, and the ends of the sealing strip are correspondingly inserted into the positioning cavity 4, and at the same time, the first support plate 23 and the second support plate 31 on both sides of the fixed mold 2 and the movable docking mold 3 are combined to support the sealing strip.

[0068] In order to further optimize the above technical solution, a plurality of blocks 121 are slidably connected to the suspension frame 12, and the distance between two adjacent blocks 121 can be adjusted according to different sealing strips to meet the clamping of the sealing strip and prevent the sealing strip from falling / being disordered.

[0069] In order to further optimize the above technical solution, the operating table 11 is covered on the outer side of the first slide rail 13 away from the second slide rail 15, and does not interfere with the sliding of the first slider 131 and the second slider 132. At the same time, one side edge of the operating table 11 has an extension plate 111 extending outward thereof.

[0070] In order to further optimize the above technical solution, the fixed mold 2 and the movable docking mold 3 both include a lower mold 21 and an upper mold 22 that can be opened and closed relative to the lower mold 21 .

[0071] In order to further optimize the above technical solution, Figure 7 As shown, it also includes heating molds 8 corresponding to the upper mold 22 and the lower mold 21 respectively. There are two groups of heating molds 8. The two groups of heating molds 8 are correspondingly arranged on the inner side of the fixed mold 2 and the movable docking mold 3. Each group of heating molds 8 includes an upper heating block 81 and a lower heating block 82. The lower surfaces of the upper mold 22 and the upper heating block 81 have concave and convex surfaces, and the upper surfaces of the lower mold 21 and the lower heating block 82 have corresponding detachable concave and convex blocks. The concave and convex surfaces and the concave and convex blocks form a positioning cavity 4. Therefore, when the movable docking mold 3 moves toward the fixed mold 2, the docking clamp 63 is clamped between the two correspondingly arranged groups of heating molds 8. The heating time and heating duration of the heating mold 8 can be determined according to actual conditions.

[0072] In order to further optimize the above technical solution, Figure 7 As shown, the number of positioning cavities 4 is multiple groups, and each group is symmetrically arranged in pairs on the fixed mold 2, the movable docking mold 3 and the heating mold 8, so that the docking of multiple sealing strips can be completed at the same time; in this embodiment, the number of positioning cavities 4 is two groups.

[0073] In order to further optimize the above technical solution, Figure 7 As shown, the upper mold 22 and the upper heating block 81 are moved toward the lower mold 21 and the lower heating block 82 by the third cylinder 17 .

[0074] In order to further optimize the above technical solution, Figure 1 As shown, an operation box 18 and a control box 19 are installed on both sides of the work platform 1. The operation box 18 is used to realize the operation of the fixed mold 2 and the mobile docking mold 3, etc. The control box 19 provides power for the above components and controls and adjusts data parameters.

[0075] The embodiments of the present invention are:

[0076] S1. Hang the sealing strip to be butted on the hanging frame 12, the upper mold 22 and the upper heating block 81 rise, and are separated from the lower mold 21 and the lower heating block 82, and the free ends of the sealing strip are respectively inserted into the symmetrically arranged positioning cavities 4 (the extension of the end does not need to be considered);

[0077] S2. Use both hands to activate the operation buttons on the operation box, and the upper mold 22 and the upper heating block 81 of the fixed mold 2 and the movable docking mold 3 are simultaneously molded to clamp the sealing strip. The docking clamping plate 63 is driven downward by the first cylinder 62 and is located between the fixed mold 2 and the movable docking mold 3 and is parallel to them. Then, the movable docking mold 3 is driven by the second cylinder 14 to link the docking clamping plate 63 and move toward the fixed mold 2 to clamp, so that the grinding amount of the sealing strips at both ends is the same (the clamping time and the running speed of the second cylinder 14 here can be adjusted according to actual conditions);

[0078] S3, the second cylinder 14 drives the movable docking mold 3 to move away from the fixed mold 2 to the origin, and the first cylinder 62 drives the docking clamp 63 to move upward and return to the origin;

[0079] S4, the double-end grinding wheel mechanism 5 is driven to rise by the lifting mechanism 7, and the grinding wheels at both ends grind the sealing strip. After grinding in place, the double-end grinding wheel mechanism 5 is driven to descend by the lifting mechanism 7 and return to the origin, and the double-end grinding wheel mechanism 5 stops working.

[0080] S5. After the grinding is completed, an adhesive film is pasted on the end surface of the positioning cavity 4, and the second cylinder 14 drives the movable docking mold 3 to move and clamp in the direction of the fixed mold 2, so that the sealing strips are closely close to complete the docking (the specific docking time is determined according to the actual situation);

[0081] S6. After the docking is completed, the upper mold 22 and the upper heating block 81 are driven upward by the third cylinder 17 to take out the sealing strip after the docking is completed.

[0082] It should be pointed out that in the above process, the process parameters such as the heating time, the first cylinder 62, the second cylinder 14, the third cylinder 17, the lifting mechanism 7, etc. can be adjusted according to time.

[0083] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0084] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-end grinding head seamless automatic butt joint machine, characterized in that: include: A working platform (1), wherein a lifting mechanism (7) is installed at the bottom of the working platform (1); A fixed mold (2), wherein the fixed mold (2) is fixed on the working platform (1); A movable docking mold (3), the movable docking mold (3) being slidably connected to the working platform (1) and capable of moving toward or away from the fixed mold (2), the movable docking mold (3) and the fixed mold (2) having symmetrically arranged positioning cavities (4); A double-end grinding wheel mechanism (5), the double-end grinding wheel mechanism (5) is connected to the lifting mechanism (7) and is located below the fixed mold (2) and the movable docking mold (3), the grinding ends on both sides of the double-end grinding wheel mechanism (5) are arranged vertically with the positioning cavity (4), and the double-end grinding wheel mechanism (5) is driven by the lifting mechanism (7) to move up and down along the vertical direction of the working platform (1), so that the grinding ends on both sides correspond to the positioning cavity (4) on both sides respectively, so as to achieve simultaneous flat grinding of both sides, so as to complete seamless docking.

2. A double-end grinding head seamless automatic butt joint machine according to claim 1, characterized in that: The invention also comprises a docking clamping mechanism (6), the docking clamping mechanism (6) comprising a mounting seat (61), a first cylinder (62) and a docking clamping plate (63), the mounting seat (61) being slidably connected to the working platform (1), one side of the mounting seat (61) being fixedly connected to a support frame (611), the first cylinder (62) being mounted on the support frame (611), the docking clamping plate (63) being a plate-shaped component having a bending angle, and the bending part thereof being hinged to the mounting seat (61), one end of the docking clamping plate (63) being hinged to the telescopic end of the first cylinder (62), and the other end being arranged tilted upward, and driven by the first cylinder (62), the docking clamping plate (63) having one end away from the first cylinder (62) being parallelly located between the fixed mold (2) and the movable docking mold (3).

3. The double-end grinding head seamless automatic butt joint machine according to claim 1, characterized in that: The lifting mechanism (7) comprises a fixed frame (71), a driving motor (72) and a screw (73); the fixed frame (71) is fixed to the bottom of the working platform (1); the driving motor (72) is mounted on the fixed frame (71), and its power output shaft is connected to a synchronous belt assembly (74) via a coupling; one end of the screw (73) is drivingly connected to the synchronous belt assembly (74), and the other end is rotatably connected to the top of the fixed frame (71); the outer side of the screw (73) is threadedly connected to a sliding block (75), and the double-end grinding wheel mechanism (5) is fixedly connected to the sliding block (75).

4. The double-end grinding head seamless automatic butt joint machine according to claim 3, characterized in that: The double-end grinding wheel mechanism (5) comprises a mounting frame (51), a double-headed permanent magnet motor (52) and a grinding wheel (53); the mounting frame (51) is fixed on the sliding block (75), the double-headed permanent magnet motor (52) is mounted on the inner side of the mounting frame (51), the number of the grinding wheels (53) is two, the two grinding wheels (53) are drivingly connected to the power output shafts on both sides of the double-headed permanent magnet motor (52), and are arranged vertically to the positioning cavity (4).

5. The double-end grinding head seamless automatic butt joint machine according to claim 4, characterized in that: Baffles (54) are detachably connected to both sides of the mounting frame (51), and a grinding wheel avoidance opening (541) is provided on the top of the baffle (54).

6. The double-end grinding head seamless automatic butt joint machine according to claim 4, characterized in that: A waste collection tray (55) is detachably connected to the top of the mounting frame (51).

7. A double-end grinding head seamless automatic butt joint machine according to claim 6, characterized in that: Both sides of the mounting frame (51) are connected to a variable diameter dust suction short pipe (56), the inlet end of the variable diameter dust suction short pipe (56) corresponds to the grinding wheel (53), and the outlet end is connected to the dust collector through a hose (57).

8. The double-end grinding head seamless automatic butt joint machine according to claim 1, characterized in that: An operating table (11) is installed on the edge of the working platform (1) close to the fixed mold (2), and a hanging frame (12) is fixed on the top.

9. The double-end grinding head seamless automatic butt joint machine according to claim 1, characterized in that: The fixed mold (2) and the movable docking mold (3) both comprise a lower mold (21) and an upper mold (22) that can be opened and closed relative to the lower mold (21).

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